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EP1282735B1 - Modular fluid guidance piece with internal temperature control - Google Patents

Modular fluid guidance piece with internal temperature control Download PDF

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Publication number
EP1282735B1
EP1282735B1 EP01947227A EP01947227A EP1282735B1 EP 1282735 B1 EP1282735 B1 EP 1282735B1 EP 01947227 A EP01947227 A EP 01947227A EP 01947227 A EP01947227 A EP 01947227A EP 1282735 B1 EP1282735 B1 EP 1282735B1
Authority
EP
European Patent Office
Prior art keywords
fluid line
temperature control
working fluid
fluid
modular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01947227A
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German (de)
French (fr)
Other versions
EP1282735A1 (en
Inventor
Stefan Zikeli
Friedrich Ecker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LL Plant Engineering AG
Original Assignee
ZiAG Plant Engineering GmbH
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Publication date
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Publication of EP1282735A1 publication Critical patent/EP1282735A1/en
Application granted granted Critical
Publication of EP1282735B1 publication Critical patent/EP1282735B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/08—Pipe-line systems for liquids or viscous products
    • F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
    • F17D1/18—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by heating
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/06—Feeding liquid to the spinning head
    • D01D1/09—Control of pressure, temperature or feeding rate
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof

Definitions

  • the invention relates to a modular fluid conduit system for passing a crystallizing, heat-sensitive working fluid such as a synthetic polymer or a polymer solution, a cellulose derivative, a solution of cellulose, water and amine oxide, and mixtures thereof, with at least two series-connectable fluid line pieces, each one in operation Having flowed through the working fluid working fluid line area.
  • a crystallizing, heat-sensitive working fluid such as a synthetic polymer or a polymer solution, a cellulose derivative, a solution of cellulose, water and amine oxide, and mixtures thereof
  • Such fluid line pieces are known as simple pipelines and are conventionally used in spinning plants in which the working fluid is spun as a molding composition into shaped bodies. Through the fluid line piece, the working fluid from a reaction vessel in which it is mixed together, usually transported to a spinneret, where it is spun.
  • the working fluids used are heat-sensitive and prone to a spontaneous exothermic reaction when a certain maximum temperature is exceeded in the fluid conduit, or when the working fluid is stored too long below that maximum temperature.
  • the working fluids contemplated by the present invention generally have a very high temperature-dependent viscosity.
  • the viscosity decreases with increasing temperature and increased shear rate.
  • a molding composition consisting of a spinning solution containing cellulose, water and a tertiary amine oxide, for example N-methylmorpholine N-oxide (NMMO) and stabilizers for thermal stabilization of the cellulose and the solvent and optionally other additives such
  • NMMO N-methylmorpholine N-oxide
  • stabilizers for thermal stabilization of the cellulose and the solvent and optionally other additives
  • the fluid line piece For the transport of the working fluid, the fluid line piece must be heated on the one hand, so that the viscosity of the working fluid decreases and the working fluid can be promoted with low losses through the fluid line piece. On the other hand, the temperature must not be too high to avoid decomposition and a spontaneous exothermic reaction of the working fluid. Finally, as uniform as possible a velocity profile should form over the flow cross section of the fluid line piece through which the working fluid flows in order to ensure a uniform flow through the fluid line section.
  • EP 0 668 941 B1 proposes controlling the temperature in the middle of the tube and / or on the inner wall of a fluid line piece according to the formulas given there.
  • a cooling medium is passed through a cooling jacket surrounding the working fluid line region.
  • the cooling medium dissipates the heat from possibly occurring exothermic reactions from the working fluid and cools the outer region of the fluid flow.
  • DE 35 32 979 A1 an internal heat tracing for pipes is known.
  • a flow-around tubular hollow body is arranged in a substantially tubular transport and / or delivery line, in particular made of glass.
  • the tubular hollow body is flexible and has a thin wall, so that it gives way to any turbulence due to oscillating movements.
  • the device of DE 35 32 979 A1 is suitable, for example, for plant for sulfochlorination, where the subsidized by the transport and / or delivery line substances should be observed.
  • the fluid conduit system as proposed in EP 0 668 941 B1, has the disadvantage that still a poor efficiency in the flow through the working fluid is achieved, and that only inaccurately the temperature-dependent properties of the working fluid can be influenced.
  • the invention is therefore an object of the invention to provide a fluid line piece, which has an improved efficiency in the flow of the working fluid and allows a more direct influence on the temperature-dependent properties of the working fluid.
  • this object is achieved for a modular fluid line system of the type mentioned above in that the working fluid line region has a substantially annular flow cross section and in the middle of the fluid line piece instead of the core flow of the working fluid, an inner Temper michsvorraum to control the temperature of the working fluid within the Working fluid line region is arranged and is flowed through during operation of a Temper michsfluid, and provided between the at least two fluid line pieces supply module is provided through which during operation Temper michsfluid from outside the tempering device can be fed.
  • the temperature of the outer fluid can thus be influenced very well over the entire flow cross-section.
  • the tempering device occupies the position of the core flow and allows control of the temperature of the working fluid from within the flow. As a result, the working fluid and thus the temperature-dependent properties can be control the working fluid more accurately, the flow losses can be lowered. It also eliminates the need to measure the temperature of the core flow, which is possible only very inaccurate and indirect and with great effort.
  • the internal area of the working fluid can thus be directly influenced in its temperature by the tempering device according to the invention flowing around the working fluid ,
  • the thickness of the flow cross section to be tempered is reduced by the arrangement of the temperature control device instead of the core flow of the working fluid and the consequent annular working fluid conduit region.
  • the thickness of the layer to be tempered corresponds to that of the inner diameter of the working fluid conduit region .
  • the layer thickness of the working fluid to be tempered only corresponds to the wall thickness of the annular flow cross section. The reduced layer thickness reduces the time constants for the heat transfer.
  • the temperature control device can serve both for cooling and for heating the working fluid, depending on whether the temperature of the temperature control device is higher or lower than the temperature of the working fluid.
  • the temperature of the temperature control device can also be controlled such that certain sections of the temperature control device act as cooling sections and other sections as heating sections.
  • the reference temperature of the working fluid used here is the temperature of the working fluid averaged over the flow cross section of the working fluid conduit region.
  • the temperature control device is designed as an inner tube arranged coaxially with the working fluid line region, through which a temperature control fluid flows.
  • the cooling or heating of the working fluid through the tempering fluid flowing through the tempering device can take place in countercurrent or direct current.
  • DC the flow directions of the working fluid and Temper michsfluid are substantially rectified.
  • countercurrent flow directions of working fluid and Temper michsfluid are essentially in opposite directions.
  • a tempering jacket section can also be provided which at least partially surrounds the working fluid line region.
  • a temperature control device which acts directly on the inner region of the flow, and a further temperature control, which acts on the outer region of the flow. Both tempering devices together have a significantly increased surface area for heat transfer compared with the prior art.
  • the Temper istsmantelabsacrificing be traversed by a Temper michsfluid.
  • a tempering fluid By means of a tempering fluid, it is possible, for example, to achieve a more uniform heat transfer without large local temperature differences compared to an electrical heating.
  • Temper michad in Temper michsmantelabites has a temperature independently controlled by Temper michsfluid in the temperature control. Regardless of the Temper michsvorraum the Temper michsmantelabsacrificing can be used for cooling or heating in cocurrent or countercurrent.
  • the working fluid line section is at least partially surrounded by a heat insulation layer.
  • the temperature control device is surrounded by the working fluid.
  • the fluid line piece has a spacer which extends from the temperature control device in the working fluid to the inner wall of the working fluid line piece.
  • spacers may be provided in a respective favorable arrangement. A separate heating of the spacers is possible.
  • the spacers may have a substantially streamlined cross-section.
  • the heat transfer surface can be increased again, even if the spacer is flowed through by the Temper michsfluid. As a result, it is also possible to act directly on the working fluid which does not come into direct contact with the tempering device or the temperature control jacket section. At the same time a structurally simple way of supplying the tempering with Temper michsfluid is possible by this solution.
  • the spacer is arranged on a lying in the direction of passage of the working fluid end of the fluid line piece.
  • the fluid line piece may have at least one end located in the flow direction of the working fluid, a connecting portion which is configured such that the fluid line piece is connectable to other fluid line pieces.
  • the Temper michsfluid be supplied for the tempering at the connecting portion.
  • the connecting section may have at least one Temper michsfluidö réelle through which the Temper michsfluid from outside the fluid line piece can be fed to the Temper michsvorraum.
  • a separate supply of the individual fluid line sections with temperature control fluid can be dispensed with if the temperature control device has an opening for the temperature control fluid in the temperature control device at at least one end located in the direction of passage of the working fluid, which opening can not be connected to a corresponding passage opening of a further fluid line section.
  • the Temper istsvortechniken cascaded fluid line pieces are directly connected.
  • correspondingly matching receiving means can be provided at the respective passage openings.
  • a further fluid line piece is connected to the fluid line piece, which is not connected to an inventive is provided inner tempering device.
  • a closure means may be provided which is attachable to the passage opening for the Temper michsfluid the inner heating section and through which the passage opening is tightly closed. By the closure means leakage of Temper michsfluids is avoided in the working fluid.
  • the closure means has a substantially streamlined outer shape. The closure means may be arranged on an end of the tempering device located in or against the passage direction of the working fluid.
  • the fluid line piece may take any functional form commonly used in line technology.
  • the fluid line piece according to the invention may be formed as a straight or arbitrarily curved pipe piece, which has at each end located in the flow direction of the working fluid in each case a connecting portion for connecting two further fluid line pieces.
  • the fluid line piece can also be equipped as a distributor piece with at least three connecting portions for connecting further fluid line pieces.
  • Such manifolds may be formed, for example, in Y-shape, in T-shape or in any other three-dimensional shape.
  • fluid line piece is designed as an end piece with only one connecting portion for the connection of only one further fluid line piece.
  • the one passage opening for the working fluid is expediently closed.
  • the fluid line piece can also be configured as a reducing piece whose one flow cross-section through which the working fluid flows is smaller at an end located in the direction of passage of the working fluid than at the opposite end in the passage direction The End.
  • a reducer can be used to create transitions between different fluid conduit systems.
  • the fluid line piece may have a built-in mixing reactor for treating the working fluid and for influencing the polymer characteristic.
  • the fluid line piece may include one or more fluid filter groups for filtering the working fluid.
  • the invention is not limited to the specific type of Tempertechnischsfluids. So can be used as Tempertechnischsfluid liquids and gases.
  • the working fluid line section or the Temper michsmantelab bain any with respect to the working fluid corrosion resistant and pressure-resistant material with respect to the possible exothermic reactions can be used.
  • One possible material is steel or stainless steel or chrome-plated steel or stainless steel.
  • the outer wall of the tempering device or the inner wall of the working fluid line region can be particularly smoothly machined or provided with a friction-minimizing coating.
  • the fluid line system may further include a regulator or obturator that serves to control the working fluid.
  • the control or obturator can be fed via the Temper michsfluidchuck system.
  • the temperature control device can be constructed as a separate part to which a conventional fluid line piece or a conventional conduit can be attached.
  • the tempering device has a connection means which can be connected to a connection means of a further temperature-control module or of a further fluid line section and to which the fluid line section can simultaneously be tightly fastened.
  • the temperature control device takes the place of the core flow in the fluid conduit, so that a substantially annular, thin-layer-like flow cross-section between tempering device and retrofitted fluid line pipe is formed.
  • Fig. 1 shows a first embodiment of a fluid line piece 1 according to the invention in a longitudinal section along a center line M of the fluid line piece M.
  • the fluid line piece 1 is substantially tubular and rotationally symmetrical about the central axis M.
  • the fluid line piece of Fig. 1 is especially for the passage of a spinning solution containing water, cellulose and tertiary amine oxide, designed as working fluid.
  • the working fluid is passed through a working fluid conduit portion 2 having an annular flow area.
  • the working fluid line region has an outer wall 3 and an inner wall 4, which delimit the flow cross section of the working fluid line region 2.
  • the inner wall 4 of the working fluid conduit region 2 is formed by a tempering device 5.
  • the tempering device 5 has a coaxial to the working fluid line 2 formed line section or inner body 6, the interior 7 is flowed through by a Temper michsfluid.
  • the inner body 6 is formed substantially tubular.
  • the tempering device 5 is externally surrounded by the working fluid in the working fluid line region 2. Since the temperature of the Temper michsfluids in the interior 7 of the Temper michsvoriques 5 has a temperature difference from the temperature of the working fluid in the working fluid line 2, takes place through the wall of the conduit 6, a heat exchange. Depending on whether the temperature of the Temper michsfluids is greater or less than the temperature of the working fluid, there is a heat exchange from the working fluid to the Temper michsfluid or Temper michsfluid instead of the working fluid.
  • the tempering device can be used both for heating and for cooling the working fluid.
  • the outer wall 3 of the working fluid conduit portion 2 is formed by a tubular body 8, which constitutes a Temper michsmantelabsacrificing.
  • the tube 8 is surrounded by a cavity 9, which may also be surrounded by a Temper michsfluid.
  • the temperature of the Temper michsfluids in Temper michsmantelab bainsky 9 may be greater or less than the temperature of the working fluid.
  • the outer wall 3 can be used to cool or to heat the working fluid independently of the tempering device 5.
  • the Temper einsmantelabsacrificing is provided with connections for the supply of Temper michsfluid.
  • the temperature control fluid is supplied to the Temper michsmantelabites 9 in a predetermined controllable temperature.
  • the tempering device 5 is supplied with tempering fluid via radially extending feed lines 10, which terminate in passage openings 11.
  • the passage openings 11 are arranged on a flange-shaped connecting portion 12 of the fluid line piece 1.
  • the connecting portion 12 serves to connect the fluid line piece 1 with further, not shown, fluid line pieces.
  • the working fluid flows through an annular passage opening 13 from one fluid line piece to the other.
  • the connecting portion may for example be provided with passage or threaded openings 14, through which a fluid-tight and pressure-resistant connection can be made by means of screws with the connecting portion of another fluid line piece.
  • the fluid line piece of Fig. 1 is for explaining various variants of the supply of Temper michsfluid to the Temper michsvorraum 5 with different connection portions at the two in the direction of passage of the working fluid, i. shown in the direction of the center axis M ends.
  • the section for supplying the tempering device with tempering fluid is fixedly connected to the tempering device 5.
  • a closure means 15 is attached to the end of the conduit 6 of the tempering 5, through which the passage opening for the Temper michsfluid is closed in the tempering 5.
  • connection section 12 At the right end of the fluid line section 1 in FIG. 1, another variant of the connection section 12 or the feed of the temperature control fluid in the temperature control device 5 is shown. Instead of an integrally connected to the temperature control device 5 feed the feed at the right end of the fluid line section 1 forms a separate feed module or a separate mounting body 16.
  • the feed module 16 is provided with a line section 16 'which can be tightly connected to the temperature control fluid line 6 of the temperature control device 5. In the embodiment of FIG. 1, this is achieved in that the line section 16 'is inserted into the line or the inner body 6. Via the line section 16, the interior 7 of the Temper GmbHsfluidtechnisch 6 is connected to the radial or spoke extending feed lines 10 of the feed module 16.
  • the feed lines 10 of the fastening body 16 terminate in passage openings 11, which are connected to a Temper michsfluidchuck not shown.
  • the Temperianssfluid not shown in the figures promotes the Temper michsfluid by the Temper michsvorraum 5 and simultaneously controls the temperature of the Temper michsfluids depending on predetermined process parameters, such as the composition of the working fluid, the conveying speed of the working fluid, the mass flow of the working fluid and the like.
  • Fig. 2 shows a cross section perpendicular to the center line M along the line II-II of Fig. 1st
  • the feed lines 10 are rectilinear in the radial direction and are arranged in a star shape.
  • the number of feeder lines is arbitrary, as is their arrangement. In order to prevent dead water areas behind the feed lines, their cross-section in the direction of passage of the working fluid is streamlined.
  • the feed lines 10 are connected to an annular space 17.
  • This annulus 17 may be connected via one or more ports to the Temper GmbHsfluidchuckssystem (not shown here).
  • the closure means 14 is used in each case if the temperature control devices 5 of successive fluid line pieces are to be isolated from one another.
  • This can serve, for example, to keep the temperature drop along the flow direction of the tempering fluid in the tempering device 5 low, or to alternately heat or cool successive fluid line pieces.
  • the direction of flow of the tempering fluid in the tempering device 5 can take place in the same direction or opposite to the direction of the flow through the working fluid line section 2, that is, in cocurrent or in countercurrent.
  • FIG. 3 shows a second exemplary embodiment of a fluid line piece 1 according to the invention.
  • the same reference numerals are used for elements that perform the same or similar function as in the embodiment of FIG.
  • the fluid line piece of Fig. 3 is formed as a manifold, which is designed in Y-shape.
  • the embodiment of Fig. 3 may also be in the form of any other distributor piece, for example in T-shape or in any three-dimensional shape, be formed.
  • the manifold is provided with two curved pipe sections 20 which terminate in connecting sections 12 according to one of the variants of FIG. In certain applications can be dispensed with the interposition of a pipe section. In this case, the connecting portions 12 are located directly on the manifold 1.
  • the distributor 1 is externally provided with a Temper michsmantelabites 9, which surrounds an outer wall 8 of the working fluid line section 2.
  • the Temper michsmantelabites 9 is connected to the distributor of FIG. 3 via the feed lines 8 with the tempering device 5.
  • the manifold 1 is connected to a total of three fluid line pieces (not shown). In the region in which branch the working fluid line areas, no Temper michsvortechniken 5 are mounted so as not to block the flow of the working fluid.
  • the temperature control devices 5 of the two pipe sections 20 end before the intersection of the respective center lines M of the corresponding fluid line piece.
  • the closure pieces 14 are streamlined, conical in the present case.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • General Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Lubricants (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Pipe Accessories (AREA)
  • Pipeline Systems (AREA)
  • Resistance Heating (AREA)
  • Temperature-Responsive Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Weting (AREA)

Abstract

The present invention relates to a fluid line member for a modular fluid line system for passing therethrough a crystallizing, heat-sensitive working fluid, such as a synthetic polymer, a cellulose derivative or a solution consisting of cellulose, water and amine oxide. Such working fluids have a temperature-dependent viscosity and are subject to spontaneous decomposition phenomena under strong exothermic reaction. A temperature control of the working fluid is to be made possible by the fluid line member. This is achieved in that the fluid line member has a circular cross-section with a temperature control device instead of the core flow. According to the invention the temperature of the working fluid can thereby be controlled from the inside.

Description

Die Erfindung betrifft ein modulares Fluidleitungssystem zur Durchleitung eines kristallisierenden, wärmesensitiven Arbeitsfluids wie eines synthetischen Polymers oder einer Polymerlösung, eines Cellulosederivats, einer Lösung aus Cellulose, Wasser und Aminoxid, sowie Mischungen davon, mit wenigstens zwei in Reihe schaltbaren Fluidleitungsstücken, die jeweils einen im Betrieb vom Arbeitsfluid durchströmten Arbeitsfluidleitungsbereich aufweisen.The invention relates to a modular fluid conduit system for passing a crystallizing, heat-sensitive working fluid such as a synthetic polymer or a polymer solution, a cellulose derivative, a solution of cellulose, water and amine oxide, and mixtures thereof, with at least two series-connectable fluid line pieces, each one in operation Having flowed through the working fluid working fluid line area.

Derartige Fluidleitungsstücke sind als einfache Rohrleitungen bekannt und werden herkömmlicherweise bei Spinnanlagen, bei denen das Arbeitsfluid als Formmasse zu Formkörpern versponnen wird, eingesetzt. Durch das Fluidleitungsstück wird das Arbeitsfluid von einem Reaktionsbehälter, in dem es zusammengemischt wird, im Regelfall zu einer Spinndüse transportiert, an der es versponnen wird.Such fluid line pieces are known as simple pipelines and are conventionally used in spinning plants in which the working fluid is spun as a molding composition into shaped bodies. Through the fluid line piece, the working fluid from a reaction vessel in which it is mixed together, usually transported to a spinneret, where it is spun.

Die dabei verwendeten Arbeitsfluide sind wärmesensitiv und neigen zu einer spontanen exothermen Reaktion, wenn im Fluidleitungsstück eine bestimmte Höchsttemperatur überschritten wird, oder wenn das Arbeitsfluid unterhalb dieser Höchsttemperatur zu lange gelagert wird.The working fluids used are heat-sensitive and prone to a spontaneous exothermic reaction when a certain maximum temperature is exceeded in the fluid conduit, or when the working fluid is stored too long below that maximum temperature.

Die bei der vorliegenden Erfindung in Betracht kommenden Arbeitsfluide weisen ingesamt eine sehr hohe, temperaturabhängige Viskosität auf. Die Viskosität sinkt mit steigender Temperatur und erhöhter Scherrate.The working fluids contemplated by the present invention generally have a very high temperature-dependent viscosity. The viscosity decreases with increasing temperature and increased shear rate.

Als ein besonders zum Verspinnen geeignetes Arbeitsfluid dient eine Formmasse, die aus einer Spinnlösung, enthaltend Cellulose, Wasser und ein tertiäres Aminoxid, beispielsweise N-Methylmorpholin N-Oxid (NMMO) sowie Stabilisatoren zur thermischen Stabilisierung der Cellulose und des Lösungsmittels sowie gegebenenfalls weitere Additive wie z.B. Titandioxid, Bariumasulfat, Graphit, Carboxymethylcellulosen, Polyethylenglycote, Chitin, Chitosan, Alginsäure, Polysaccharide, Farbstoffe, antibakteriell wirkende Chemikalien, Flammschutzmittel enthaltend Phosphor, Halogene oder Stickstoff, Aktivkohle, Russe oder elektrisch leitfähige Russe, Kieselsäure, organische Lösungsmittel als Verdünnungsmittel, etc. enthält.As a particularly suitable for spinning working fluid is a molding composition consisting of a spinning solution containing cellulose, water and a tertiary amine oxide, for example N-methylmorpholine N-oxide (NMMO) and stabilizers for thermal stabilization of the cellulose and the solvent and optionally other additives such For example, titanium dioxide, barium sulfate, graphite, carboxymethylcelluloses, polyethylene glycols, chitin, chitosan, alginic acid, polysaccharides, dyes, antibacterial chemicals, flame retardants containing phosphorus, halogens or nitrogen, activated carbon, Russian or electrically conductive carbon black, silica, organic solvents as diluents, etc. contains.

Für den Transport des Arbeitsfluids muss das Fluidleitungsstück einerseits beheizbar sein, damit die Viskosität des Arbeitsfluids sinkt und das Arbeitsfluid mit geringen Verlusten durch das Fluidleitungsstück gefördert werden kann. Andererseits darf die Temperatur nicht zu hoch sein, um eine Zersetzung und eine spontane exotherme Reaktion des Arbeitsfluids zu vermeiden. Schließlich soll sich über den vom Arbeitsfluid durchströmten Strömungsquerschnitt des Fluidleitungsstückes ein möglichst gleichmäßiges Geschwindigkeitsprofil ausbilden, um eine gleichmäßige Durchströmung des Fluidleitungsstückes sicherzustellen.For the transport of the working fluid, the fluid line piece must be heated on the one hand, so that the viscosity of the working fluid decreases and the working fluid can be promoted with low losses through the fluid line piece. On the other hand, the temperature must not be too high to avoid decomposition and a spontaneous exothermic reaction of the working fluid. Finally, as uniform as possible a velocity profile should form over the flow cross section of the fluid line piece through which the working fluid flows in order to ensure a uniform flow through the fluid line section.

In der EP 0 668 941 B1 wird zur Lösung dieser Probleme vorgeschlagen, die Temperatur in der Rohrmitte und/oder an der Innenwand eines Fluidleitungsstückes gemäß den dort angegebenen Formeln zu steuern. Dazu wird ein Kühlmedium durch einen den Arbeitsfluidleitungsbereich umgebenden Kühlmantel geleitet. Das Kühlmedium leitet die Wärme von eventuell auftretenden exothermen Reaktionen aus dem Arbeitsfluid ab und kühlt den Außenbereich der Fluidströmung.In order to solve these problems, EP 0 668 941 B1 proposes controlling the temperature in the middle of the tube and / or on the inner wall of a fluid line piece according to the formulas given there. For this purpose, a cooling medium is passed through a cooling jacket surrounding the working fluid line region. The cooling medium dissipates the heat from possibly occurring exothermic reactions from the working fluid and cools the outer region of the fluid flow.

Aus der DE 35 32 979 A1 ist eine innenliegende Begleitheizung für Rohrleitungen bekannt. Dabei wird in einer im Wesentlichen rohrförmigen Transport- und/oder Förderleitung, insbesondere aus Glas, ein umströmter schlauchförmiger Hohlkörper angeordnet. Der schlauchförmige Hohlkörper ist flexibel und weist eine dünne Wand auf, so dass er eventuell auftretenden Turbulenzen durch schwingende Bewegungen nachgibt. Die Vorrichtung der DE 35 32 979 A1 ist beispielsweise für Anlage zur Sulfochlorierung geeignet, wo die durch die Transport- und/oder Förderleitung geförderten Substanzen beobachtet werden sollen.From DE 35 32 979 A1 an internal heat tracing for pipes is known. In this case, in a substantially tubular transport and / or delivery line, in particular made of glass, a flow-around tubular hollow body is arranged. The tubular hollow body is flexible and has a thin wall, so that it gives way to any turbulence due to oscillating movements. The device of DE 35 32 979 A1 is suitable, for example, for plant for sulfochlorination, where the subsidized by the transport and / or delivery line substances should be observed.

In "Ullmanns Enzyklopädie der technischen Chemie", 4. Auflage, Band 2 (1972), Verlag Chemie, Seiten 458 und 459 sind im Abschnitt 3.2.1.3. die Gleichungen für den Wärmeübergang bei indirekten Wärmeaustauschern angegeben. Hierbei ist bezüglich der Randbedingungen dieser Gleichungen angeführt, dass der Wärmeübergang nur am Innenrohr, nur am Außenrohr oder an beiden Rohren stattfinden kann.In "Ullmann's Encyclopedia of Industrial Chemistry", 4th Edition, Volume 2 (1972), Verlag Chemie, pages 458 and 459 are in Section 3.2.1.3. given the equations for the heat transfer in indirect heat exchangers. With regard to the boundary conditions of these equations, it is stated here that the heat transfer can take place only on the inner tube, only on the outer tube or on both tubes.

Das Fluidleitungssystem, wie es in der EP 0 668 941 B1 vorgeschlagen wird, hat den Nachteil, dass nach wie vor ein schlechter Wirkungsgrad bei der Durchströmung durch das Arbeitsfluid erreicht wird, und dass nur ungenau auf die temperaturabhängigen Eigenschaften des Arbeitsfluids Einfluss genommen werden kann.The fluid conduit system, as proposed in EP 0 668 941 B1, has the disadvantage that still a poor efficiency in the flow through the working fluid is achieved, and that only inaccurately the temperature-dependent properties of the working fluid can be influenced.

Der Erfindung liegt demzufolge die Aufgabe zugrunde, ein Fluidleitungsstück zu schaffen, das einen verbesserten Wirkungsgrad bei der Durchströmung des Arbeitsfluids aufweist und das eine direktere Einflussnahme auf die temperaturabhängigen Eigenschaften des Arbeitsfluids ermöglicht.The invention is therefore an object of the invention to provide a fluid line piece, which has an improved efficiency in the flow of the working fluid and allows a more direct influence on the temperature-dependent properties of the working fluid.

Erfindungsgemäß wird diese Aufgabe für ein modulares Fluidleitungssystem der eingangs genannten Art dadurch gelöst, dass der Arbeitsfluidleitungsbereich einen im Wesentlichen ringförmigen Strömungsquerschnitt aufweist und dass in der Mitte des Fluidleitungsstücks an Stelle der Kernströmung des Arbeitsfluids eine innere Temperierungsvorrichtung, die zur Steuerung der Temperatur des Arbeitsfluids innerhalb des Arbeitsfluidleitungsbereichs angeordnet und im Betrieb von einem Temperierungsfluid durchströmt ist, und ein zwischen den wenigstens zwei Fluidleitungsstücken anordenbares Speisemodul vorgesehen ist, durch das im Betrieb Temperierungsfluid von außerhalb der Temperierungsvorrichtung zuführbar ist.According to the invention, this object is achieved for a modular fluid line system of the type mentioned above in that the working fluid line region has a substantially annular flow cross section and in the middle of the fluid line piece instead of the core flow of the working fluid, an inner Temperierungsvorrichtung to control the temperature of the working fluid within the Working fluid line region is arranged and is flowed through during operation of a Temperierungsfluid, and provided between the at least two fluid line pieces supply module is provided through which during operation Temperierungsfluid from outside the tempering device can be fed.

Bei dieser Lösung gibt es somit keine Kemströmung mehr. Die Temperatur des Außenfluids kann somit sehr gut über den gesamten Strömungsquerschnitt beeinflusst werden. Die Temperiervorrichtung nimmt die Lage der Kemströmung ein und ermöglicht eine Steuerung der Temperatur des Arbeitsfluids vom Inneren der Strömung aus. Als Folge lassen sich das Arbeitsfluid und damit die temperaturabhängigen Eigenschaften des Arbeitsfluids genauer kontrollieren, die Strömungsverluste lassen sich senken. Es entfällt auch die Notwendigkeit, die Temperatur der Kemströmung zu messen, was nur sehr ungenau und indirekt und mit großem Aufwand möglich ist.In this solution, there is thus no Kemströmung more. The temperature of the outer fluid can thus be influenced very well over the entire flow cross-section. The tempering device occupies the position of the core flow and allows control of the temperature of the working fluid from within the flow. As a result, the working fluid and thus the temperature-dependent properties can be control the working fluid more accurately, the flow losses can be lowered. It also eliminates the need to measure the temperature of the core flow, which is possible only very inaccurate and indirect and with great effort.

Im Gegensatz zu der in der EP 0 668 941 B1 verfolgten Lösung, bei der nur indirekt über die Kühlung der Außentemperatur eine Beeinflussung der Kerntemperatur stattfinden kann, ist durch die vom Arbeitsfluid umströmte, erfindungsgemäße Temperierungsvorrichtung der innere Bereich des Arbeitsfluids somit direkt in seiner Temperatur beeinflussbar.In contrast to the solution pursued in EP 0 668 941 B1, in which the core temperature can be influenced only indirectly by cooling the outside temperature, the internal area of the working fluid can thus be directly influenced in its temperature by the tempering device according to the invention flowing around the working fluid ,

Durch die Anordnung der Temperiervorrichtung an Stelle der Kernströmung des Arbeitsfluids und den dadurch bedingten ringförmigen Arbeitsfluidleitungsbereich wird auch die Dicke des zu temperierenden Strömungsquerschnitts verringert: Bei dem Verfahren der EP 0 668 941 A1 entspricht die Dicke der zu temperierenden Schicht , die dem dem Innendurchmesser des Arbeitsfluidleitungsbereichs. Erfindungsgemäß entspricht die zu temperierende Schichtdicke des Arbeitsfluids nur noch der Wanddicke des ringförmigen Strömungsquerschnitts. Durch die verringerte Schichtdicke verringern sich die Zeitkonstanten für den Wärmeübergang.The thickness of the flow cross section to be tempered is reduced by the arrangement of the temperature control device instead of the core flow of the working fluid and the consequent annular working fluid conduit region. In the process of EP 0 668 941 A1, the thickness of the layer to be tempered corresponds to that of the inner diameter of the working fluid conduit region , According to the invention, the layer thickness of the working fluid to be tempered only corresponds to the wall thickness of the annular flow cross section. The reduced layer thickness reduces the time constants for the heat transfer.

Die Temperiervorrichtung kann sowohl zum Kühlen als auch zum Beheizen des Arbeitsfluids dienen, je nachdem, ob die Temperatur der Temperiervorrichtung höher oder niedriger als die Temperatur des Arbeitsfluids ist. Im Fluidleitungsstück kann die Temperatur der Temperiervorrichtung auch so gesteuert sein, dass bestimmte Abschnitte der Temperiervorrichtung als Kühlabschnitte und andere Abschnitte als Heizabschnitte wirken. Als Referenztemperatur des Arbeitsfluids dient dabei die über den Strömungsquerschnitt des Arbeitsfluidleitungsbereichs gemittelte Temperatur des Arbeitsfluids.The temperature control device can serve both for cooling and for heating the working fluid, depending on whether the temperature of the temperature control device is higher or lower than the temperature of the working fluid. In the fluid line section, the temperature of the temperature control device can also be controlled such that certain sections of the temperature control device act as cooling sections and other sections as heating sections. The reference temperature of the working fluid used here is the temperature of the working fluid averaged over the flow cross section of the working fluid conduit region.

Gemäß einer besonders vorteilhaften Ausgestaltung ist die Temperierungsvorrichtung als ein koaxial zum Arbeitsfluidleitungsbereich angeordnetes Innenrohr ausgebildet, das von einem Temperierungsfluid durchströmt ist. Durch ein Temperierungsfluid kann beispielsweise gegenüber einer elektrischen Beheizung ein gleichmäßigerer Wärmeübergang ohne große örtliche Temperaturunterschiede erreicht werden.According to a particularly advantageous embodiment, the temperature control device is designed as an inner tube arranged coaxially with the working fluid line region, through which a temperature control fluid flows. By means of a tempering fluid, it is possible, for example, to achieve a more uniform heat transfer without large local temperature differences compared to an electrical heating.

Die Kühlung oder Beheizung des Arbeitsfluids durch das die Temperierungsvorrichtung durchströmende Temperierungsfluid kann im Gegenstrom oder Gleichstrom erfolgen. Im Gleichstrom sind die Strömungsrichtungen von Arbeitsfluid und Temperierungsfluid im Wesentlichen gleichgerichtet. Im Gegenstrom sind die Strömungsrichtungen von Arbeitsfluid und Temperierungsfluid im Wesentlichen gegenläufig.The cooling or heating of the working fluid through the tempering fluid flowing through the tempering device can take place in countercurrent or direct current. In DC, the flow directions of the working fluid and Temperierungsfluid are substantially rectified. In countercurrent flow directions of working fluid and Temperierungsfluid are essentially in opposite directions.

In einer weiteren, besonders vorteilhaften Ausgestaltung des Fluidleitungsstückes kann zusätzlich zur Temperierungsvorrichtung auch ein Temperierungsmantelabschnitt vorgesehen sein, der den Arbeitsfluidleitungsbereich zumindest abschnittsweise umgibt.In a further, particularly advantageous embodiment of the fluid line piece, in addition to the tempering device, a tempering jacket section can also be provided which at least partially surrounds the working fluid line region.

Bei dieser Ausgestaltung ist somit eine Temperiervorrichtung vorgesehen, die direkt auf den Innenbereich der Strömung einwirkt, und eine weitere Temperiervorrichtung, die auf den Außenbereich der Strömung einwirkt. Beide Temperiervorrichtungen zusammen weisen eine gegenüber dem Stand der Technik wesentlich erhöhte Fläche für den Wärmeübergang auf.In this embodiment, a temperature control device is thus provided, which acts directly on the inner region of the flow, and a further temperature control, which acts on the outer region of the flow. Both tempering devices together have a significantly increased surface area for heat transfer compared with the prior art.

In einer weiteren vorteilhaften Ausgestaltung kann der Temperierungsmantelabschnitt von einem Temperierungsfluid durchströmt sein. Durch ein Temperierungsfluid kann beispielsweise gegenüber einer elektrischen Beheizung ein gleichmäßigerer Wärmeübergang ohne große örtliche Temperaturunterschiede erreicht werden.In a further advantageous embodiment, the Temperierungsmantelabschnitt be traversed by a Temperierungsfluid. By means of a tempering fluid, it is possible, for example, to achieve a more uniform heat transfer without large local temperature differences compared to an electrical heating.

Bei dieser Ausgestaltung ergibt sich somit im Vergleich zum Stand der Technik eine wesentlich vergrößerte Wärmeübergangsfläche zwischen Arbeitsfluid und Temperierungsfluid. Die vergrößerte Wärmeübergangsfläche bewirkt einen großen Wärmestrom durch die jeweiligen Mantelflächen. Durch den schnelleren Wärmeübergang kann die Temperaturdifferenz zwischen dem Temperierungsfluid und dem Arbeitsfluid verringert werden. Die Temperatur und damit die Viskosität des Arbeitsfluids kann weitaus genauer als bislang im Stand der Technik möglich kontrolliert werden.In this embodiment, this results in comparison to the prior art, a significantly increased heat transfer area between the working fluid and Temperierungsfluid. The enlarged heat transfer surface causes a large heat flow through the respective lateral surfaces. Due to the faster heat transfer, the temperature difference between the Temperierungsfluid and the working fluid can be reduced. The temperature and thus the viscosity of the working fluid can be controlled much more accurately than hitherto possible in the prior art.

Dabei kann in einer weiteren vorteilhaften Ausgestaltung vorgesehen sein, dass das Temperierungsfluid im Temperierungsmantelabschnitt eine vom Temperierungsfluid in der Temperierungsvorrichtung unabhängig gesteuerte Temperatur aufweist. Unabhängig von der Temperierungsvorrichtung kann der Temperierungsmantelabschnitt zum Kühlen oder Beheizen im Gleich- oder Gegenstrom verwendet werden.It can be provided in a further advantageous embodiment that the Temperierungsfluid in Temperierungsmantelabschnitt has a temperature independently controlled by Temperierungsfluid in the temperature control. Regardless of the Temperierungsvorrichtung the Temperierungsmantelabschnitt can be used for cooling or heating in cocurrent or countercurrent.

Um den Wärmeübergang zwischen dem Fluidleitungsstück und seiner Umgebung möglichst gering zu halten, kann in einer weiteren vorteilhaften Ausgestaltung vorgesehen sein, dass der Arbeitsfluidleitungsabschnitt zumindest abschnittsweise von einer Wärmeisolationsschicht umhüllt ist.In order to minimize the heat transfer between the fluid line piece and its surroundings, it can be provided in a further advantageous embodiment that the working fluid line section is at least partially surrounded by a heat insulation layer.

Für das Erreichen des erfindungsgemäßen Ziels ist es unter anderem wichtig, dass die Temperierungsvorrichtung vom Arbeitsfluid umspült ist. Dies wird gemäß einer weiteren vorteilhaften Ausgestaltung dadurch erreicht, dass das Fluidleitungsstück einen Abstandshalter aufweist, der sich von der Temperierungsvorrichtung in das Arbeitsfluid bis zur Innenwandung des Arbeitsfluidleitungsstückes erstreckt. Je nach Anforderungen kann eine beliebige Anzahl von Abstandshaltern in einer jeweils günstigen Anordnung vorgesehen sein. Auch eine separate Beheizung der Abstandhalter ist möglich.Among other things, it is important for achieving the aim according to the invention that the temperature control device is surrounded by the working fluid. This is achieved according to a further advantageous embodiment in that the fluid line piece has a spacer which extends from the temperature control device in the working fluid to the inner wall of the working fluid line piece. Depending on requirements, any number of spacers may be provided in a respective favorable arrangement. A separate heating of the spacers is possible.

Um die Strömungsverluste bei der Umströmung der Abstandshalter durch das Arbeitsfluid möglichst gering zu halten, können die Abstandshalter einen im Wesentlichen stromlinienförmigen Querschnitt aufweisen.In order to minimize the flow losses in the flow around the spacers by the working fluid, the spacers may have a substantially streamlined cross-section.

Die Wärmeübergangsfläche kann nochmals vergrößert werden, wenn auch der Abstandshalter vom Temperierungsfluid durchströmt ist. Dadurch kann auch direkt auf das Arbeitsfluid eingewirkt werden, das nicht direkt mit der Temperierungsvorrichtung oder dem Temperierungsmantelabschnitt in Kontakt kommt. Gleichzeitig ist durch diese Lösung eine konstruktiv einfache Möglichkeit der Versorgung der Temperierungsvorrichtung mit Temperierungsfluid möglich.The heat transfer surface can be increased again, even if the spacer is flowed through by the Temperierungsfluid. As a result, it is also possible to act directly on the working fluid which does not come into direct contact with the tempering device or the temperature control jacket section. At the same time a structurally simple way of supplying the tempering with Temperierungsfluid is possible by this solution.

Bezeichnet man den Innendurchmesser des Fluidleitungsstückes mit DA und den Außendurchmesser der Temperierungsvorrichtung mit DI, wobei DA dem Außendurchmesser und DI dem Innendurchmesser des ringförmigen Arbeitsfluidleitungsbereichs entspricht, und bestimmt man einen adäquaten Fluidleitungsdurchmesser DAD zu √(DA 2-DI 2), dann lässt sich ein Oberflächenverhältnis wie folgt definieren: O= (DI+DA)/DAD. Dieses Oberflächenverhältnis O liegt vorzugsweise zwischen O=1 bis O=4, besonders bevorzugt zwischen O=1 bis O=1,8.Denoting the inner diameter of the fluid line piece with D A and the outer diameter of the tempering with D I , where D A corresponds to the outer diameter and D I the inner diameter of the annular working fluid line region, and one determines an adequate fluid line diameter D AD to √ (D A 2- D I 2 ), then an area ratio can be defined as follows: O = (D I + D A ) / D AD . This surface ratio O is preferably between O = 1 to O = 4, more preferably between O = 1 to O = 1.8.

Das Verhältnis der Durchmesser DA und DI kann über ein Arbeitsfluidschichtdickenverhältnis A angegeben werden, welches das Verhältnis der Schichtdicke S=(DA-DI )/2 - bei Ausführung mit Temperierungsvorrichtung (ringförmig) - bzw. S=DA - ohne Temperiervorrichtung (nur Außenrohr) - zum Außendurchmesser DA des Arbeitsfluidleitungsbereichs darstellt, A=S/DAD: Dieses Verhältnis beträgt bevorzugt weniger als 0,5, besonders bevorzugt weniger als 0,4.The ratio of the diameters D A and D I can be specified via a working fluid layer thickness ratio A, which is the ratio of the layer thickness S = (D A -D I ) / 2 - in the case of a tempering device (annular) - or S = D A - without Temperature control device (outer tube only) - represents the outer diameter D A of the working fluid line area, A = S / D AD : This ratio is preferably less than 0.5, more preferably less than 0.4.

Hinsichtlich der Stabilität und der Fertigung des Fluidleitungsstückes kann es besonders günstig sein, wenn der Abstandshalter an einem in Durchleitungsrichtung des Arbeitsfluids gelegenen Ende des Fluidleitungsstücks angeordnet ist.With regard to the stability and the production of the fluid line piece, it may be particularly favorable if the spacer is arranged on a lying in the direction of passage of the working fluid end of the fluid line piece.

Zum Aufbau eines modularen Fluidleitungssystems kann das Fluidleitungsstück an zumindest einem in Durchströmungsrichtung des Arbeitsfluids gelegenen Ende einen Verbindungsabschnitt aufweisen, der so ausgestaltet ist, dass das Fluidleitungsstück mit anderen Fluidleitungsstücken verbindbar ist.To construct a modular fluid line system, the fluid line piece may have at least one end located in the flow direction of the working fluid, a connecting portion which is configured such that the fluid line piece is connectable to other fluid line pieces.

In einer weiteren vorteilhaften Ausgestaltung kann das Temperierungsfluid für die Temperierungsvorrichtung am Verbindungsabschnitt zugeführt werden. Dazu kann der Verbindungsabschnitt mindestens eine Temperierungsfluidöffnung aufweisen, durch die das Temperierungsfluid von außerhalb des Fluidleitungsstückes an die Temperierungsvorrichtung zuführbar ist.In a further advantageous embodiment, the Temperierungsfluid be supplied for the tempering at the connecting portion. For this purpose, the connecting section may have at least one Temperierungsfluidöffnung through which the Temperierungsfluid from outside the fluid line piece can be fed to the Temperierungsvorrichtung.

Bei mehreren hintereinandergeschalteten Fluidleitungsstücken kann eine jeweils separate Versorgung der einzelnen Fluidleitungsstücke mit Temperierungsfluid entfallen, wenn die Temperierungsvorrichtung an zumindest einem in Durchleitungsrichtung des Arbeitsfluids gelegenem Ende eine Durchtrittsöffnung für das Temperierungsfluid in der Temperierungsvorrichtung aufweist, die mit einer entsprechenden Durchtrittsöffnung eines weiteren Fluidleitungsstückes nicht verbindbar ist. Bei dieser vorteilhaften Ausgestaltung werden die Temperierungsvorrichtungen hintereinandergeschalteter Fluidleitungsstücke direkt miteinander verbunden. Hierzu können an den jeweiligen Durchtrittsöffnungen entsprechend zueinander passende Aufnahmemittel vorgesehen sein.In the case of a plurality of successively connected fluid line sections, a separate supply of the individual fluid line sections with temperature control fluid can be dispensed with if the temperature control device has an opening for the temperature control fluid in the temperature control device at at least one end located in the direction of passage of the working fluid, which opening can not be connected to a corresponding passage opening of a further fluid line section. In this advantageous embodiment, the Temperierungsvorrichtungen cascaded fluid line pieces are directly connected. For this purpose, correspondingly matching receiving means can be provided at the respective passage openings.

In bestimmten Fällen kann auch vorgesehen sein, dass an das Fluidleitungsstück ein weiteres Fluidleitungsstück angeschlossen wird, das nicht mit einer erfindungsgemäßen inneren Temperierungsvorrichtung versehen ist. Für diesen Fall kann ein Verschlussmittel vorgesehen sein, das auf die Durchtrittsöffnung für das Temperierungsfluid des inneren Heizabschnittes anbringbar ist und durch das die Durchtrittsöffnung dicht verschließbar ist. Durch das Verschlussmittel wird ein Austreten des Temperierungsfluids in das Arbeitsfluid vermieden. Um an der Stelle des Verschlussmittels die Strömungsverluste möglichst gering zu halten, kann in einer weiteren vorteilhaften Ausgestaltung vorgesehen sein, dass das Verschlussmittel eine im Wesentlichen stromlinienförmige Außenform aufweist. Das Verschlussmittel kann an einem in oder gegen die Durchleitungsrichtung des Arbeitsfluids gelegenem Ende der Temperierungsvorrichtung angeordnet sein.In certain cases, it can also be provided that a further fluid line piece is connected to the fluid line piece, which is not connected to an inventive is provided inner tempering device. For this case, a closure means may be provided which is attachable to the passage opening for the Temperierungsfluid the inner heating section and through which the passage opening is tightly closed. By the closure means leakage of Temperierungsfluids is avoided in the working fluid. In order to minimize the flow losses at the location of the closure means, it can be provided in a further advantageous embodiment that the closure means has a substantially streamlined outer shape. The closure means may be arranged on an end of the tempering device located in or against the passage direction of the working fluid.

In den oben beschriebenen Ausgestaltungen kann das Fluidleitungsstück jedwede, in der Leitungstechnik gebräuchliche Funktionsform annehmen.In the embodiments described above, the fluid line piece may take any functional form commonly used in line technology.

So kann das erfindungsgemäße Fluidleitungsstück als gerades oder beliebig gekrümmtes Rohrleitungsstück ausgebildet sein, das an jedem in Strömungsrichtung des Arbeitsfluids gelegenen Ende jeweils einen Verbindungsabschnitt zum Anschluss zweier weiterer Fluidleitungsstücke aufweist. Durch ein solches Fluidleitungsstück kann das Arbeitsfluid mit genau steuerbaren Temperaturprofil über weite Strecken transportiert werden.Thus, the fluid line piece according to the invention may be formed as a straight or arbitrarily curved pipe piece, which has at each end located in the flow direction of the working fluid in each case a connecting portion for connecting two further fluid line pieces. By such a fluid line piece, the working fluid can be transported over long distances with precisely controllable temperature profile.

Das Fluidleitungsstück kann aber auch als Verteilerstück mit mindestens drei Verbindungsabschnitten zum Anschluss weiterer Fluidleitungsstücke ausgestattet sein. Derartige Verteilerstücke können beispielsweise in Y-Form, in T-Form oder in einer anderen, beliebig dreidimensionalen Form ausgebildet sein.However, the fluid line piece can also be equipped as a distributor piece with at least three connecting portions for connecting further fluid line pieces. Such manifolds may be formed, for example, in Y-shape, in T-shape or in any other three-dimensional shape.

Eine andere Möglichkeit besteht darin, das Fluidleitungsstück als Endstück mit nur einem Verbindungsabschnitt zum Anschluss nur eines weiteren Fluidleitungsstückes auszugestalten. In diesem Fall ist zweckmäßigerweise auch die eine Durchtrittsöffnung für das Arbeitsfluid verschlossen.Another possibility is to design the fluid line piece as an end piece with only one connecting portion for the connection of only one further fluid line piece. In this case, the one passage opening for the working fluid is expediently closed.

Das Fluidleitungsstück kann auch als Reduzierstück ausgestaltet sein, dessen einer, vom Arbeitsfluid durchströmter Strömungsquerschnitt an einem in Durchleitungsrichtung des Arbeitsfluids gelegenen Ende kleiner ist als am im Durchleitungsrichtung entgegengesetzten Ende. Ein solches Reduzierstück kann verwendet werden, um Übergänge zwischen verschiedenen Fluidleitungssystemen zu schaffen.The fluid line piece can also be configured as a reducing piece whose one flow cross-section through which the working fluid flows is smaller at an end located in the direction of passage of the working fluid than at the opposite end in the passage direction The End. Such a reducer can be used to create transitions between different fluid conduit systems.

Ferner kann in einer weiteren vorteilhaften Ausgestaltung das Fluidleitungsstück einen eingebauten Mischreaktor zur Behandlung des Arbeitsfluids und zur Einflussnahme auf die Polymercharakteristik aufweisen. Auch kann das Fluidleitungsstück einen oder mehrere Fluidfiltergruppen zur Filterung des Arbeitsfluids aufweisen.Furthermore, in a further advantageous embodiment, the fluid line piece may have a built-in mixing reactor for treating the working fluid and for influencing the polymer characteristic. Also, the fluid line piece may include one or more fluid filter groups for filtering the working fluid.

Die Erfindung ist nicht auf die spezielle Art des Temperierungsfluids beschränkt. So können als Temperierungsfluid Flüssigkeiten und Gase verwendet werden.The invention is not limited to the specific type of Temperierungsfluids. So can be used as Temperierungsfluid liquids and gases.

Als Werkstoff für die Temperierungsvorrichtung, den Arbeitsfluidleitungsabschnitt oder den Temperierungsmantelabschnitt kann jeglicher, mit Bezug auf das Arbeitsfluid korrosionsbeständiger und hinsichtlich der möglichen exothermen Reaktionen druckbeständiger Werkstoff verwendet werden. Ein möglicher Werkstoff ist dabei Stahl oder Edelstahl oder verchromter Stahl oder Edelstahl. Um die Haftung und Reibung des Arbeitsfluids an den Wandungen zu minimieren, können die Außenwandung der Temperierungsvorrichtung oder die Innenwandung des Arbeitsfluidleitungsbereichs besonders glatt bearbeitet oder mit einer reibungsminimierenden Beschichtung versehen sein.As the material for the tempering device, the working fluid line section or the Temperierungsmantelabschnitt any, with respect to the working fluid corrosion resistant and pressure-resistant material with respect to the possible exothermic reactions can be used. One possible material is steel or stainless steel or chrome-plated steel or stainless steel. In order to minimize the adhesion and friction of the working fluid to the walls, the outer wall of the tempering device or the inner wall of the working fluid line region can be particularly smoothly machined or provided with a friction-minimizing coating.

Das Fluidleitungssystem kann des Weiteren ein Regel- oder Absperrorgan aufweisen, das der Steuerung des Arbeitsfluids dient. Das Regel- oder Absperrorgan kann über das Temperierungsfluidversorgungssystem angespeist sein.The fluid line system may further include a regulator or obturator that serves to control the working fluid. The control or obturator can be fed via the Temperierungsfluidversorgung system.

Zum Nachrüsten bestehender Fluidleitungssysteme oder zum Einbau in herkömmliche Fluidleitungsrohre kann die Temperierungsvorrichtung als ein separates Teil aufgebaut sein, an dem ein herkömmliches Fluidleitungsstück oder ein übliches Leitungsrohr befestigt werden kann. Dazu weist die Temperierungsvorrichtung ein Verbindungsmittel auf, das mit einem Verbindungsmittel eines weiteren Temperierungsmoduls oder eines weiteren Fluidleitungsstücks verbindbar ist und an dem gleichzeitig das Fluidleitungsstück dicht befestigbar ist. Die Temperiervorrichtung nimmt die Stelle der Kernströmung im Fluidleitungsrohr ein, so dass sich ein im wesentlichen ringförmiger, dünnschichtartiger Strömungsquerschnitt zwischen Temperiervorrichtung und nachgerüstetem Fluidleitungsrohr ausbildet.For retrofitting existing fluid line systems or for installation in conventional fluid line tubes, the temperature control device can be constructed as a separate part to which a conventional fluid line piece or a conventional conduit can be attached. For this purpose, the tempering device has a connection means which can be connected to a connection means of a further temperature-control module or of a further fluid line section and to which the fluid line section can simultaneously be tightly fastened. The temperature control device takes the place of the core flow in the fluid conduit, so that a substantially annular, thin-layer-like flow cross-section between tempering device and retrofitted fluid line pipe is formed.

Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen mit Bezug auf die Figuren beschrieben.In the following the invention will be described by means of embodiments with reference to the figures.

Es zeigen:

Fig. 1
ein erstes Ausführungsbeispiel eines Fluidleitungsstückes in einem Längsschnitt;
Fig. 2
das Fluidleitungsstück der Fig. 1 im Querschnitt und
Fig. 3
ein zweites Ausführungsbeispiel des erfindungsgemäßen Fluidleitungsstückes.
Show it:
Fig. 1
a first embodiment of a fluid line piece in a longitudinal section;
Fig. 2
the fluid line piece of Fig. 1 in cross-section and
Fig. 3
A second embodiment of the fluid line piece according to the invention.

Fig. 1 zeigt ein erstes Ausführungsbeispiel eines erfindungsgemäßen Fluidleitungsstückes 1 in einem Längsschnitt entlang einer Mittellinie M des Fluidleitungsstückes M. Das Fluidleitungsstück 1 ist im Wesentlichen rohrförmig aufgebaut und rotationssymmetrisch um die Mittelachse M. Das Fluidleitungsstück der Fig. 1 ist speziell für die Durchleitung einer Spinnlösung, enthaltend Wasser, Cellulose und tertiäres Aminoxid, als Arbeitsfluid ausgestaltet. Das Arbeitsfluid wird durch einen Arbeitsfluidleitungsbereich 2 mit ringförmigem Strömungsquerschnitt geleitet. Der Arbeitsfluidleitungsbereich weist eine Außenwandung 3 und eine Innenwandung 4 auf, die den Strömungsquerschnitt des Arbeitfluidleitungsbereichs 2 begrenzen.Fig. 1 shows a first embodiment of a fluid line piece 1 according to the invention in a longitudinal section along a center line M of the fluid line piece M. The fluid line piece 1 is substantially tubular and rotationally symmetrical about the central axis M. The fluid line piece of Fig. 1 is especially for the passage of a spinning solution containing water, cellulose and tertiary amine oxide, designed as working fluid. The working fluid is passed through a working fluid conduit portion 2 having an annular flow area. The working fluid line region has an outer wall 3 and an inner wall 4, which delimit the flow cross section of the working fluid line region 2.

Die Innenwandung 4 des Arbeitfluidleitungsbereichs 2 wird von einer Temperierungsvorrichtung 5 gebildet.The inner wall 4 of the working fluid conduit region 2 is formed by a tempering device 5.

Die Temperierungsvorrichtung 5 weist einen koaxial zum Arbeitsfluidleitungsbereich 2 ausgebildeten Leitungsabschnitt bzw. Innenkörper 6 auf, dessen Innenraum 7 von einem Temperierungsfluid durchströmt wird. Der Innenkörper 6 ist im wesentlichen rohrförmig ausgebildet.The tempering device 5 has a coaxial to the working fluid line 2 formed line section or inner body 6, the interior 7 is flowed through by a Temperierungsfluid. The inner body 6 is formed substantially tubular.

Die Temperierungsvorrichtung 5 wird außen vom Arbeitsfluid im Arbeitsfluidleitungsbereich 2 umspült. Da die Temperatur des Temperierungsfluids im Innenraum 7 der Temperierungsvorrichtung 5 eine Temperaturdifferenz zur Temperatur des Arbeitsfluids im Arbeitsfluidleitungsbereich 2 aufweist, findet durch die Wandung des Leitungsrohres 6 ein Wärmeaustausch statt. Je nachdem, ob die Temperatur des Temperierungsfluids größer oder kleiner als die Temperatur des Arbeitsfluids ist, findet ein Wärmetausch vom Arbeitsfluid zum Temperierungsfluid oder vom Temperierungsfluid zum Arbeitsfluid statt.The tempering device 5 is externally surrounded by the working fluid in the working fluid line region 2. Since the temperature of the Temperierungsfluids in the interior 7 of the Temperierungsvorrichtung 5 has a temperature difference from the temperature of the working fluid in the working fluid line 2, takes place through the wall of the conduit 6, a heat exchange. Depending on whether the temperature of the Temperierungsfluids is greater or less than the temperature of the working fluid, there is a heat exchange from the working fluid to the Temperierungsfluid or Temperierungsfluid instead of the working fluid.

Somit kann die Temperierungsvorrichtung sowohl zum Heizen als auch zum Kühlen des Arbeitsfluids verwendet werden.Thus, the tempering device can be used both for heating and for cooling the working fluid.

Die Außenwandung 3 des Arbeitsfluidleitungsbereichs 2 wird von einem rohrförmigen Körper 8 gebildet, das einen Temperierungsmantelabschnitt darstellt. Dazu ist das Rohr 8 von einem Hohlraum 9 umgeben, der ebenfalls von einem Temperierungsfluid umspült sein kann. Unabhängig von der Temperatur des Temperierungsfluids in der Temperierungsvorrichtung 5 kann die Temperatur des Temperierungsfluids im Temperierungsmantelabschnitt 9 größer oder kleiner als die Temperatur des Arbeitsfluids sein. Somit kann die Außenwandung 3 zum Kühlen oder zum Beheizen des Arbeitsfluids unabhängig von der Temperierungsvorrichtung 5 verwendet werden.The outer wall 3 of the working fluid conduit portion 2 is formed by a tubular body 8, which constitutes a Temperierungsmantelabschnitt. For this purpose, the tube 8 is surrounded by a cavity 9, which may also be surrounded by a Temperierungsfluid. Regardless of the temperature of the Temperierungsfluids in the Temperierungsvorrichtung 5, the temperature of the Temperierungsfluids in Temperierungsmantelabschnitt 9 may be greater or less than the temperature of the working fluid. Thus, the outer wall 3 can be used to cool or to heat the working fluid independently of the tempering device 5.

Der Temperierungsmantelabschnitt ist mit Anschlüssen zur Versorgung mit Temperierungsfluid versehen. Das Temperierungsfluid wird dem Temperierungsmantelabschnitt 9 in einer vorbestimmt steuerbaren Temperatur zugeführt.The Temperierungsmantelabschnitt is provided with connections for the supply of Temperierungsfluid. The temperature control fluid is supplied to the Temperierungsmantelabschnitt 9 in a predetermined controllable temperature.

Die Temperierungsvorrichtung 5 wird über radial verlaufende Speiseleitungen 10, die in Durchtrittsöffnungen 11 enden, mit Temperierungsfluid versorgt.The tempering device 5 is supplied with tempering fluid via radially extending feed lines 10, which terminate in passage openings 11.

Die Durchtrittsöffnungen 11 sind an einem flanschförmigen Verbindungsabschnitt 12 des Fluidleitungsstückes 1 angeordnet. Der Verbindungsabschnitt 12 dient dazu, das Fluidleitungsstück 1 mit weiteren, nicht gezeigten Fluidleitungsstücken zu verbinden. Das Arbeitsfluid strömt dabei durch eine ringförmige Durchtrittsöffnung 13 von einem Fluidleitungsstück zum andern.The passage openings 11 are arranged on a flange-shaped connecting portion 12 of the fluid line piece 1. The connecting portion 12 serves to connect the fluid line piece 1 with further, not shown, fluid line pieces. The working fluid flows through an annular passage opening 13 from one fluid line piece to the other.

Der Verbindungsabschnitt kann beispielsweise mit Durchgangs- oder Gewindeöffnungen 14 versehen sein, durch die eine fluiddichte und druckfeste Verbindung mittels Schrauben mit dem Verbindungsabschnitt eines weiteren Fluidleitungsstückes hergestellt werden kann.The connecting portion may for example be provided with passage or threaded openings 14, through which a fluid-tight and pressure-resistant connection can be made by means of screws with the connecting portion of another fluid line piece.

Das Fluidleitungsstück der Fig. 1 ist zur Erläuterung verschiedener Varianten der Zufuhr von Temperierungsfluid an der Temperierungsvorrichtung 5 mit unterschiedlichen Verbindungsabschnitten an den beiden in Durchleitungsrichtung des Arbeitsfluids, d.h. in Richtung der Mittenachse M gelegenen Enden gezeigt.The fluid line piece of Fig. 1 is for explaining various variants of the supply of Temperierungsfluid to the Temperierungsvorrichtung 5 with different connection portions at the two in the direction of passage of the working fluid, i. shown in the direction of the center axis M ends.

An dem in Fig. 1 gezeigten linken Ende ist der Abschnitt zur Versorgnung der Temperierungsvorrichtung mit Temperierungsfluid fest mit der Temperierungsvorrichtung 5 verbunden.At the left end shown in FIG. 1, the section for supplying the tempering device with tempering fluid is fixedly connected to the tempering device 5.

In Fig. 1 ist an dem Ende des Leitungsrohres 6 der Temperierungsvorrichtung 5 ein Verschlussmittel 15 angebracht, durch das die Durchtrittsöffnung für das Temperierungsfluid in der Temperierungsvorrichtung 5 verschlossen ist.In Fig. 1, a closure means 15 is attached to the end of the conduit 6 of the tempering 5, through which the passage opening for the Temperierungsfluid is closed in the tempering 5.

An dem in der Fig. 1 rechten Ende des Fluidleitungsstückes 1 ist eine andere Variante des Verbindungsabschnittes 12 bzw. der Einspeisung des Temperierungsfluids in der Temperierungsvorrichtung 5 dargestellt. Anstelle einer einstückig mit der Temperierungsvorrichtung 5 verbundenen Einspeisung bildet die Einspeisung am rechten Ende des Fluidleitungsstückes 1 ein separates Speisemodul bzw. einen separaten Befestigungskörper 16 aus. Das Speisemodul 16 ist mit einem Leitungsabschnitt 16' versehen, der mit der Temperierungsfluidleitung 6 der Temperierungsvorrichtung 5 dicht verbindbar ist. Beim Ausführungsbeispiel der Fig. 1 wird dies dadurch erreicht, dass der Leitungsabschnitt 16' in die Leitung bzw. den Innenkörper 6 eingeschoben wird. Über den Leitungsabschnitt 16 ist der Innenraum 7 der Temperierungsfluidleitung 6 mit den radial bzw. speichenförmig verlaufenden Speiseleitungen 10 des Speisemoduls 16 verbunden.At the right end of the fluid line section 1 in FIG. 1, another variant of the connection section 12 or the feed of the temperature control fluid in the temperature control device 5 is shown. Instead of an integrally connected to the temperature control device 5 feed the feed at the right end of the fluid line section 1 forms a separate feed module or a separate mounting body 16. The feed module 16 is provided with a line section 16 'which can be tightly connected to the temperature control fluid line 6 of the temperature control device 5. In the embodiment of FIG. 1, this is achieved in that the line section 16 'is inserted into the line or the inner body 6. Via the line section 16, the interior 7 of the Temperierungsfluidleitung 6 is connected to the radial or spoke extending feed lines 10 of the feed module 16.

Die Speiseleitungen 10 des Befestigungskörpers16 enden in Durchtrittsöffnungen 11, die mit einer nicht dargestellten Temperierungsfluidversorgung verbunden sind.The feed lines 10 of the fastening body 16 terminate in passage openings 11, which are connected to a Temperierungsfluidversorgung not shown.

Die in den Abbildungen nicht dargestellte Temperierungsfluidversorgung fördert das Temperierungsfluid durch die Temperierungsvorrichtung 5 und steuert gleichzeitig die Temperatur des Temperierungsfluids in Abhängigkeit von vorgegebenen Verfahrensparametern, wie beispielsweise der Zusammensetzung des Arbeitsfluids, der Fördergeschwindigkeit des Arbeitsfluids, dem Massestrom des Arbeitsfluids und ähnlichem.The Temperierungsfluidversorgung not shown in the figures promotes the Temperierungsfluid by the Temperierungsvorrichtung 5 and simultaneously controls the temperature of the Temperierungsfluids depending on predetermined process parameters, such as the composition of the working fluid, the conveying speed of the working fluid, the mass flow of the working fluid and the like.

Für die Versorgung des Temperierungsmantelabschnittes 9 und der Temperierungsvorrichtung 5 können unterschiedliche Temperierungsfluidversorgungssysteme vorgesehen sein.For the supply of the Temperierungsmantelabschnittes 9 and the Temperierungsvorrichtung 5 different Temperierungsfluidversorgung be provided.

Beim Ausführungsbeispiel der Fig. 1 beträgt ein Oberflächenverhältnis O= (DI+DA)/DAD, das aus dem Quotienten aus der Summe des Außendurchmessers DA und des Innendurchmessers DI des Arbeitsfluidleitungsbereichs 2 und einem adäquaten Fluidleitungsdurchmesser DAD=√(DA 2-DI 2) gebildet wird, zwischen O=1 bis O=4, besonders bevorzugt zwischen O=1 bis O=1,8.In the embodiment of FIG. 1, an area ratio O = (D I + D A ) / D AD is the ratio of the sum of the outer diameter D A and the inner diameter D I of the working fluid line region 2 and an adequate fluid line diameter D AD = √ ( D A 2 -D I 2 ) is formed, between O = 1 to O = 4, more preferably between O = 1 to O = 1.8.

Das Verhältnis A=S/DAD der Schichtdicke S=(DA-DI)/2 zum adäquaten Fluidleitungsdurchmesser DAD des Arbeitsfluidleitungsbereichs 2 beträgt bevorzugt weniger als 0,5, beim Ausführungsbeispiel der Fig. 1 weniger als 0,4.The ratio A = S / D AD of the layer thickness S = (D A -D I ) / 2 to the adequate fluid line diameter D AD of the working fluid line region 2 is preferably less than 0.5, in the embodiment of FIG. 1 less than 0.4.

Fig. 2 zeigt einen Querschnitt senkrecht zur Mittellinie M entlang der Linie II-II der Fig. 1.Fig. 2 shows a cross section perpendicular to the center line M along the line II-II of Fig. 1st

In Fig. 2 ist zu erkennen, dass die Speiseleitungen 10 in radialer Richtung geradlinig verlaufen und sternförmig angeordnet sind. Die Anzahl der Speiseleitungen ist beliebig, ebenso ihre Anordnung. Um Totwassergebiete hinter den Speiseleitungen zu verhindern, ist deren Querschnitt in Durchleitungsrichtung des Arbeitsfluid stromlinienförmig ausgebildet.In Fig. 2 it can be seen that the feed lines 10 are rectilinear in the radial direction and are arranged in a star shape. The number of feeder lines is arbitrary, as is their arrangement. In order to prevent dead water areas behind the feed lines, their cross-section in the direction of passage of the working fluid is streamlined.

In Fig. 2 sind die Speiseleitungen 10 zu einem Ringraum 17 verbunden. Dieser Ringraum 17 kann über einen oder mehrere Anschlüsse mit dem Temperierungsfluidversorgungssystem (hier nicht dargestellt) verbunden sein.In Fig. 2, the feed lines 10 are connected to an annular space 17. This annulus 17 may be connected via one or more ports to the Temperierungsfluidversorgungssystem (not shown here).

Das Verschlussmittel 14 wird jeweils dann eingesetzt, wenn die Temperierungsvorrichtungen 5 aufeinander folgender Fluidleitungsstücke voneinander isoliert werden sollen.The closure means 14 is used in each case if the temperature control devices 5 of successive fluid line pieces are to be isolated from one another.

Dies kann beispielsweise dazu dienen, den Temperaturabfall entlang der Strömungsrichtung des Temperierungsfluids in der Temperierungsvorrichtung 5 gering zu halten, oder aufeinander folgende Fluidleitungsleitungsstücke abwechselnd zu beheizen oder zu kühlen.This can serve, for example, to keep the temperature drop along the flow direction of the tempering fluid in the tempering device 5 low, or to alternately heat or cool successive fluid line pieces.

Die Strömungsrichtung des Temperierungsfluids in der Temperierungsvorrichtung 5 kann in gleicher Richtung oder entgegengesetzt zur Richtung der Durchströmung des Arbeitsfluidleitungsabschnittes 2 erfolgen, also im Gleichstrom oder im Gegenstrom.The direction of flow of the tempering fluid in the tempering device 5 can take place in the same direction or opposite to the direction of the flow through the working fluid line section 2, that is, in cocurrent or in countercurrent.

In Fig. 3 ist ein zweites Ausführungsbeispiel eines erfindungsgemäßen Fluidleitungsstückes 1 gezeigt. Bei diesem Ausführungsbeispiel werden für Elemente, die eine gleiche oder ähnliche Funktion wie beim Ausführungsbeispiel der Fig. 1 erfüllen, die gleichen Bezugszeichen verwendet.FIG. 3 shows a second exemplary embodiment of a fluid line piece 1 according to the invention. In this embodiment, the same reference numerals are used for elements that perform the same or similar function as in the embodiment of FIG.

Das Fluidleitungsstück der Fig. 3 ist als Verteilerstück ausgebildet, das in Y-Form ausgeführt ist. Das Ausführungsbeispiel der Fig. 3 kann auch in Form eines beliebigen anderen Verteilerstückes, beispielsweise in T-Form oder in einer beliebigen dreidimensionalen Form, ausgebildet sein.The fluid line piece of Fig. 3 is formed as a manifold, which is designed in Y-shape. The embodiment of Fig. 3 may also be in the form of any other distributor piece, for example in T-shape or in any three-dimensional shape, be formed.

Beim Ausführungsbeispiel der Fig. 3 ist das Verteilerstück mit zwei gekrümmten Rohrabschnitten 20 versehen, die in Verbindungsabschnitten 12 gemäß einer der Varianten der Fig. 1 enden. Bei bestimmten Anwendungen kann auf die Zwischenschaltung eines Rohrstückes verzichtet werden. In diesem Fall liegen die Verbindungsabschnitte 12 direkt am Verteilerstück 1 an.In the embodiment of Fig. 3, the manifold is provided with two curved pipe sections 20 which terminate in connecting sections 12 according to one of the variants of FIG. In certain applications can be dispensed with the interposition of a pipe section. In this case, the connecting portions 12 are located directly on the manifold 1.

Das Verteilerstück 1 ist außen mit einem Temperierungsmantelabschnitt 9 versehen, der eine Außenwand 8 des Arbeitsfluidleitungsabschnittes 2 umgibt. Der Temperierungsmantelabschnitt 9 ist beim Verteilerstück der Fig. 3 über die Speiseleitungen 8 mit der Temperierungsvorrichtung 5 verbunden.The distributor 1 is externally provided with a Temperierungsmantelabschnitt 9, which surrounds an outer wall 8 of the working fluid line section 2. The Temperierungsmantelabschnitt 9 is connected to the distributor of FIG. 3 via the feed lines 8 with the tempering device 5.

Das Verteilerstück 1 wird mit insgesamt drei Fluidleitungsstücken (nicht gezeigt) verbunden. Im Bereich, in dem sich die Arbeitsfluidleitungsbereiche verzweigen, sind keine Temperierungsvorrichtungen 5 angebracht, um die Durchströmung des Arbeitsfluids nicht zu blockieren. Die Temperierungsvorrichtungen 5 der beiden Rohrabschnitte 20 enden vor dem Schnittpunkt der jeweiligen Mittellinien M des entsprechenden Fluidleitungsstückes. Um im Bereich der Enden der Temperierungsvorrichtungen 5 eine günstige, möglichst verlustfreie Strömung ohne Ausbildung von Stagnationsgebieten zu erhalten, in denen das Arbeitsfluid degradieren könnte, sind die Verschlussstücke 14 stromlinienförmig, im vorliegenden Fall kegelförmig, ausgebildet. Durch diese Ausgestaltung wird eine saubere Aufteilung der Strömung des Arbeitsfluids im Verteilerstück 1 erreicht. Über den Abschnitt 21 des Temperierungsmantelabschnittes 9 findet ein Austausch von Temperierungsfluid der Temperierungsvorrichtungen 5 der beiden Rohrabschnitte 20 statt.The manifold 1 is connected to a total of three fluid line pieces (not shown). In the region in which branch the working fluid line areas, no Temperierungsvorrichtungen 5 are mounted so as not to block the flow of the working fluid. The temperature control devices 5 of the two pipe sections 20 end before the intersection of the respective center lines M of the corresponding fluid line piece. In order to obtain a favorable loss-less flow in the region of the ends of the tempering devices 5 without formation of stagnation regions in which the working fluid could degrade, the closure pieces 14 are streamlined, conical in the present case. By this configuration, a clean division of the flow of the working fluid in the manifold 1 is achieved. Via the section 21 of the Temperierungsmantelabschnittes 9 is an exchange of Temperierungsfluid the Temperierungsvorrichtungen 5 of the two pipe sections 20 instead.

Claims (22)

  1. A modular fluid line system for passing therethrough a crystallizing, heat-sensitive working fluid, such as a synthetic polymer or a polymer solution, a cellulose derivative, a solution consisting of cellulose, water and amine oxide, as well as mixtures thereof, comprising at least two series-connectable fluid line members (1), each having a working fluid line portion through which working fluid flows during operation, characterized in that said working fluid line portion (2) has a substantially annular flow cross-section, and that an internal temperature control device (5) is provided in the center (M) of said fluid line member (1) replacing the core flow of the working fluid, said internal temperature control device being arranged for controlling the temperature of the working fluid within said working fluid line portion (2) and having a temperature-control fluid flowing therethrough during operation, and a feed module (16) which is adapted to be arranged between the at least two fluid line members (1) is provided through which temperature control fluid can be supplied from outside the temperature control device (5) during operation.
  2. The modular fluid line system according to claim 1, characterized in that said internal temperature control device (5) is designed as a preferably tubular temperature-control fluid line (8).
  3. The modular fluid line system according to any one of the aforementioned claims, characterized in said fluid line member (1) comprises a temperature-control jacket section (9) for controlling the temperature of the working fluid, said temperature-control jacket section (9) surrounding said working fluid line portion (2) at least sectionwise.
  4. The modular fluid line system according to claim 3, characterized in that a temperature control fluid flows through said temperature-control jacket section (9).
  5. The modular fluid line system according to any one of the aforementioned claims, characterized in that said working fluid line portion (2) is covered at least sectionwise by a thermal insulation layer.
  6. The modular fluid line system according to any one of the aforementioned claims, characterized in that at least one spacer (10) extends from said temperature control device (5) to the outer wall (3) of said working fluid line portion (2) into said working fluid.
  7. The modular fluid line system according to claim 6, characterized in that said spacer (10) has a substantially streamlined cross-section.
  8. The modular fluid line system according to claim 6 or 7, characterized in that said spacer (10) is configured to have the temperature control fluid in said temperature control device (5) flowing therethrough.
  9. The modular fluid line system according to any one of claims 6 to 8, characterized in that said spacer (10) is arranged on an end of said fluid line member (1) that is positioned in the direction of passage of the working fluid.
  10. The modular fluid line system according to any one of claims 6 to 9, characterized in that said spacer (10) is provided on a separate feed module (6) mounted on said temperature control device (5).
  11. The modular fluid line system according to any one of the aforementioned claims, characterized in that at at least one end positioned in the direction of passage of the working fluid said temperature control device (5) comprises a passage opening (14') for the temperature control fluid in said temperature control device (5), said passage opening (14') being tightly connectable to a corresponding passage opening (14') of a further fluid line member (1).
  12. The modular fluid line system according to any one of the aforementioned claims, characterized in that a closing means (15) is provided which is mountable on said passage opening (14') for the temperature control fluid of said temperature control device (5) and by which said passage opening (14') can be sealingly closed.
  13. The modular fluid line system according to claim 12, characterized in that said closing means (15) has a substantially streamlined outer shape.
  14. The modular fluid line system according to any one of the aforementioned claims, characterized in that at at least one end positioned in the direction of passage of the working fluid said fluid line member (1) comprises a connecting section (12) for connecting said fluid line member (1) to a further fluid line member (1).
  15. The modular fluid line system according to any one of the aforementioned claims, characterized in that a surface ratio O=(DI+DA)/DAD of the sum of outer diameter DA and inner diameter DI of the annular working-fluid line portion (2) to an adequate fluid line diameter DAD=√(DA 2-DI 2) is between O=1 to O=4, preferably between O=1 to O=1.8.
  16. The modular fluid line system according to any one of the aforementioned claims, characterized in that a working-fluid layer thickness ratio A=S/DAD resulting from the ratio of the layer thickness S=(DA-DI)/2 to the adequate fluid line diameter DAD of said working fluid line portion (2) is preferably less than 0.5, particularly preferably less than 0.4.
  17. The modular fluid line system according to any one of the aforementioned claims, characterized in that said fluid line member (1) is designed as a straight pipe member or as a pipe member of any desired curvature which at each end positioned in the direction of flow of the working fluid comprises a respective connecting section (12) for connecting two further fluid line members (1).
  18. The modular fluid line system according to any one of the aforementioned claims, characterized in that said fluid line member (1) is designed as a distributor member comprising at least three connecting sections for connecting further fluid line members (1).
  19. The modular fluid line system according to any one of the aforementioned claims, characterized in that said fluid line member (1) is designed as a terminal member with only one connecting section (12) for connecting only one further fluid line member (1).
  20. The modular fluid line system according to any one of the aforementioned claims, characterized in that said connecting section (12) is provided with at least one temperature-control fluid opening (11) through which said temperature control fluid can be supplied from outside said fluid line member (1) to said temperature control device (5).
  21. The modular fluid line system according to any one of the aforementioned claims, characterized in that said temperature control device (5) and/or said fluid line member (1) in said working fluid line portion (2) is/are made from steel, high-quality steel or chromium-plated steel.
  22. A temperature control device (5) for installation in a fluid line member (1) of a modular fluid line system for passing therethrough a crystallizing, heat-sensitive working fluid, such as a synthetic polymer, a cellulose derivative as well as a solution consisting of cellulose, water and amine oxide, said fluid line member (1) comprising a working fluid line portion (2) through which the working fluid is flowing, characterized in that said temperature control device (5) is configured to have a temperature control fluid flowing therethrough and assumes the position of the core flow of said working fluid line portion (2) and a feed module (16) is provided there that is adapted to be arranged between two fluid line members (1) and through which the temperature control fluid of said temperature control device (5) can be supplied from the outside.
EP01947227A 2000-05-18 2001-04-17 Modular fluid guidance piece with internal temperature control Expired - Lifetime EP1282735B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10024540A DE10024540A1 (en) 2000-05-18 2000-05-18 Fluid carrying pipe section for conveying crystallizing, heat sensitive fluid, especially polymer spinning solution, has temperature control tube inside outer pipe containing working fluid
DE10024540 2000-05-18
PCT/EP2001/004353 WO2001088232A1 (en) 2000-05-18 2001-04-17 Fluid guidance piece with internal temperature equalisation

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EP1282735A1 EP1282735A1 (en) 2003-02-12
EP1282735B1 true EP1282735B1 (en) 2006-06-14

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US (1) US6997249B2 (en)
EP (1) EP1282735B1 (en)
KR (1) KR100488292B1 (en)
CN (1) CN1289724C (en)
AT (1) ATE330047T1 (en)
AU (1) AU6897201A (en)
BR (1) BR0111160A (en)
CA (1) CA2407162A1 (en)
DE (2) DE10024540A1 (en)
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NO (1) NO321179B1 (en)
PL (1) PL358362A1 (en)
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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10200405A1 (en) 2002-01-08 2002-08-01 Zimmer Ag Cooling blowing spinning apparatus and process
DE10204381A1 (en) 2002-01-28 2003-08-07 Zimmer Ag Ergonomic spinning system
KR100514348B1 (en) * 2003-12-03 2005-09-13 한국과학기술연구원 Apparatus & method for transport of cellulose solution
DE102004024028B4 (en) 2004-05-13 2010-04-08 Lenzing Ag Lyocell method and apparatus with press water return
AT505730B1 (en) 2007-08-16 2010-07-15 Helfenberger Immobilien Llc & MIXING, ESPECIALLY SPINNING SOLUTION
EP2565572A1 (en) 2011-09-02 2013-03-06 Aurotec GmbH Heat exchange conduit system
CN104712298A (en) * 2015-03-23 2015-06-17 朱长林 Vacuum heating oil pipe

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1854169A (en) * 1930-05-27 1932-04-19 Charles W Fryhofer Cream cooler
US2120000A (en) * 1936-07-31 1938-06-07 Mark C Nell Refractory block and structure
US2218097A (en) * 1939-03-22 1940-10-15 Lee A Rhodes Heat exchanger
US2475635A (en) * 1945-01-08 1949-07-12 Elmer C Parsons Multiple conduit
US3386497A (en) * 1966-09-26 1968-06-04 Robert H. Feldmeier Regenerative heat exchanger for heavy liquids
US3889746A (en) * 1973-12-14 1975-06-17 Ernest Laffranchi Heat exchanger
US4461347A (en) * 1981-01-27 1984-07-24 Interlab, Inc. Heat exchange assembly for ultra-pure water
DE3532979A1 (en) * 1985-09-16 1987-04-16 Henkel Kgaa Inner auxiliary heating for pipelines
US4648355A (en) * 1985-11-18 1987-03-10 Martin Bekedam Heat exchanger array for a step down return of condensate
US4740981A (en) * 1986-10-10 1988-04-26 Stemmerich, Inc. Temperature controller for gas laser resonator
US4840226A (en) * 1987-08-10 1989-06-20 The United States Of America As Represented By The United States Department Of Energy Corrosive resistant heat exchanger
US4834172A (en) * 1988-01-12 1989-05-30 W. Schmidt Gmbh & Co. Kg Heat exchanger
US5257757A (en) * 1992-06-11 1993-11-02 The United States Of America As Represented By The Secretary Of The Air Force Advanced hypersonic nosecap
US5354371A (en) * 1993-05-28 1994-10-11 Courtaulds Fibres (Holdings) Limited Transport of solutions of cellulose through pipes
AT403057B (en) * 1995-05-09 1997-11-25 Chemiefaser Lenzing Ag METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES
US6157778A (en) * 1995-11-30 2000-12-05 Komatsu Ltd. Multi-temperature control system and fluid temperature control device applicable to the same system
DE19547236A1 (en) * 1995-12-18 1997-07-03 Degussa Process for the preparation of D, L-methionine or its salt
NL1007899C2 (en) * 1997-12-24 1999-06-25 Dhv Water Bv Coupling element for membrane elements.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Ullmanns Encyklopädie der technischen Chemie", 1972, VERLAG CHEMIE, WEINHEIM/BERGSTR. (DE) *

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CN1429286A (en) 2003-07-09
NO20025484D0 (en) 2002-11-15
CA2407162A1 (en) 2001-11-22
DE50110157D1 (en) 2006-07-27
US20040108103A1 (en) 2004-06-10
KR100488292B1 (en) 2005-05-11
TWM247759U (en) 2004-10-21
EP1282735A1 (en) 2003-02-12
EA200201200A1 (en) 2003-06-26
BR0111160A (en) 2003-04-15
WO2001088232A1 (en) 2001-11-22
ATE330047T1 (en) 2006-07-15
PL358362A1 (en) 2004-08-09
EA003975B1 (en) 2003-12-25
ZA200208676B (en) 2004-02-05
KR20030004412A (en) 2003-01-14
NO20025484L (en) 2003-01-20
CN1289724C (en) 2006-12-13
MY131221A (en) 2007-07-31
AU6897201A (en) 2001-11-26
US6997249B2 (en) 2006-02-14
DE10024540A1 (en) 2001-01-18
NO321179B1 (en) 2006-04-03

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