JP2017519174A - Heat exchanger with a passage to damp liquid motion - Google Patents

Abstract

The present invention is a heat exchanger for indirectly transferring heat between a first medium (M1) and a second medium (M2), wherein the liquid phase of the first medium (M1) ( F1) having a fuselage chamber (2) having a fuselage chamber (3) and at least one heat transfer block (4), the heat transfer block (4) being the first medium A first heat transfer passage for receiving (M1) and a second heat transfer passage for receiving the second medium (M2), thereby indirectly transferring heat between the two media (M1, M2). In this case, the at least one heat transfer block (4) can be surrounded by the liquid phase (F1) of the first medium (M1) in the fuselage chamber (3). Thus, it is related with the heat exchanger arrange | positioned in the said trunk | drum chamber (3). According to the present invention, a plurality of mutually parallel cylindrical passages (10) for guiding the liquid phase of the first medium (M1) are provided in the fuselage chamber (3). The two heat transfer blocks (4, 5) are provided laterally.

Description

  The present invention relates to a heat exchanger for transferring heat indirectly between a first medium and a second medium according to claim 1.

  Such heat exchangers are typically also referred to as a fuselage (also referred to as a “shell”) that defines a fuselage chamber that receives the liquid phase of the first medium, and at least one heat transfer block (also referred to as a “core” or “block”). And the heat transfer block includes a first heat transfer path for receiving the first medium and a second heat transfer path for receiving the second medium. Heat can be indirectly transferred between the two mediums, wherein the heat transfer block can be surrounded by the liquid phase of the first medium in the fuselage chamber. Has been placed.

  Such a heat exchanger is shown, for example, in the literature “The Standards of the brazed aluminum plate-fin heat exchanger manufacturers association (ALPEMA)”, 2010, 3rd edition, page 67, FIG. Such a heat exchanger configuration is also referred to as a “core-in-shell” or “block-in-shell” heat exchanger.

  The driving force for allowing the first medium (e.g. refrigerant) to flow through the at least one heat transfer block is preferably provided by the thermosyphon effect caused by the vaporization itself. However, the fuselage chamber of the heat exchanger not only serves the purpose of the storage tank, but also functions as a separator for separating the vapor generated from the first medium from the refrigerant liquid or liquid phase of the first medium. . That is, based on the system, a free surface of the liquid phase of the first medium is formed in the fuselage chamber. The body of the heat exchanger, preferably in the form of a cylinder, can in this case be oriented both horizontally and vertically with respect to the longitudinal axis or the direction of the cylinder axis. The heat transfer block is basically flowed upward by the refrigerant liquid. The flow direction of the flow (second medium) to be cooled is not particularly limited.

  Thus, if the heat exchanger is to be installed on a movable foundation, for example on a floating body (eg a ship), there may be a generally known problem that arises in a partially liquid-filled container. is there. In particular, since this liquid may reciprocate in the container or the fuselage chamber, the water level temporarily changes at a plurality of locations in the fuselage chamber, for example. Thereby, for example, the penetration depth of the heat transfer block into the liquid phase of the first medium varies, which may impair the heat transfer effect, for example. Therefore, if possible, the liquid movement of the bath should be damped so as to ensure reliable and reliable operation.

  Accordingly, the object of the present invention based on this is to provide a heat exchanger of the type mentioned at the beginning so as to eliminate the above-mentioned problems.

  This problem is solved by a heat exchanger having the features of claim 1.

  According to this, a plurality of cylindrical passages extending in parallel with each other, which guide the liquid phase of the first medium, in particular simply flow-connected with the bath or liquid phase or flowable by the bath or liquid phase Is provided laterally with respect to the at least one heat transfer block in the fuselage chamber.

  In this case, the tubular shape has a general meaning, and the bottom surface of the tube, which is the cross section of the passage here, may be any flat surface, in particular circular (cylindrical), rectangular, square, triangular or It means that it may be formed in a hexagon. In this case, each cylinder has a straight or longitudinal direction which is not located in the plane of this flat surface, preferably perpendicular to this flat surface or cross section. It is caused by shifting along the axis.

  Furthermore, the individual passages are preferably separated from one another by walls around their peripheries, i.e., preferably in the form of peripheral walls, in particular completely closed walls. Under such a completely closed wall, the medium flowing in each passage along the longitudinal axis of this passage will not enter the adjacent passage (in a direction transverse to the longitudinal axis). Absent.

  One passage, or several passages, or all passages may have a separate unique peripheral wall. The wall of the passage may form part of the wall of the adjacent passage. This applies to multiple or all passages.

  By means of the present invention, advantageously the liquid phase of the first medium in the fuselage chamber of the heat exchanger is calmed during the rocking motion of the heat exchanger. In this case, the oscillating motion is in particular the longitudinal axis or cylinder axis of the fuselage, its spatial position or inclination, especially periodically (for example when a heat exchanger is arranged on a floating body on water). Means change by wave motion).

  For heat exchangers arranged in a predetermined manner assuming the following: the liquid phase is at the top of the heat transfer block during operation of the heat exchanger if the passage is directed, for example, along a vertical line It can flow out of the section and flow downward again through the passage on the side of the heat transfer block. In this case, this passage forms a flow resistance in the horizontal direction that suppresses the movement of the liquid phase of the first medium along the horizontal line.

  If the passage is oriented horizontally, the liquid phase in the passage may in some cases reciprocate during the oscillating movement of the heat exchanger, in which case the passage is based on a restricted flow cross section, Similarly, it acts as a horizontal flow resistance and thus attenuates the corresponding movement of the liquid phase of the first medium. When the longitudinal axes of the parallel passages are oriented horizontally, the liquid movement due to the rocking movement, in which the inclination of the longitudinal axis changes, is damped, among other things.

  The at least one heat transfer block can in principle be any heat exchanger capable of transferring heat indirectly, in particular from the second medium to the first medium.

  Preferably, however, the heat transfer block is a plate heat exchanger. A plate heat exchanger of this type usually has a plurality of plates or thin plates arranged in parallel to each other, and these plates or thin plates are a plurality of heat transfer passages for the media involved in heat transfer. Form. A preferred configuration of the plate heat exchanger comprises a plurality of heat conducting structures, for example heat conducting structures in the form of meandered cross-sections, in particular wavy or bent thin plates (so-called fins). Each of these heat transfer structures is arranged between two parallel separator plates or separator plates of a plate heat exchanger, where both outermost layers of the plate heat exchanger are It is formed by a cover plate. In this way, a plurality of parallel passages or a heat transfer, each with two fins arranged between two separation plates or between one separation plate and one cover plate, respectively. Passages are formed and the media can flow through these passages. Therefore, heat transfer can be performed between the media flowing in the adjacent heat transfer passages. In this case, the heat transfer passage corresponding to the first medium is called the first heat transfer passage, and the second medium The heat transfer path corresponding to is correspondingly called the second heat transfer path.

  In the lateral direction, preferably in the form of a terminal, in order to close each heat transfer path between two adjacent separation plates or between one cover plate and the adjacent separation plate. A piece (a so-called side bar) is provided. Since the first heat transfer passage is opened upward and downward along the vertical direction line and is not particularly closed by the terminal piece, the liquid phase of the first medium flows from below to the first heat transfer passage. And can flow out from the first heat transfer passage as a liquid phase and / or a gas phase above the plate heat exchanger.

  The cover plate, separation plate, fins, side bars are preferably made of aluminum and are soldered together, for example in a furnace. Via a header with a corresponding nozzle, a medium, for example a second medium, can be introduced into or discharged from the corresponding heat transfer path.

  The fuselage of the heat exchanger may in particular have a (circular) cylindrical peripheral wall, which is preferably the longitudinal axis of the peripheral wall or the fuselage in a heat exchanger arranged in a predetermined manner or The cylinder axis is oriented so as to extend along a horizontal line or a vertical line. The fuselage has a wall connected to the peripheral wall on the end face side, preferably facing each other, which wall extends in a direction perpendicular to the longitudinal axis or the cylindrical axis.

  With regard to the mode of operation of the heat exchanger, as already mentioned at the beginning, preferably at least one plate heat exchanger adjoins the second medium guided in the second heat transfer path. The first medium guided in the first heat transfer passage is cooled and / or at least partially liquefied, thereby forming a gas phase of the first medium, in this case The fuselage chamber is formed to collect the gas phase.

  More preferably, the at least one plate heat exchanger has a first medium rising in the at least one plate heat exchanger during operation of the heat exchanger, i.e. at least one plate provided for this purpose. In the first heat transfer passage of the heat exchanger, in particular in which case at least one plate heat exchanger causes the second medium in the second heat transfer passage to move relative to the first medium. Thus, it is formed so as to be guided in a reverse flow or a cross flow. At the upper end of the plate heat exchanger, the liquid phase of the first medium flowing out together with the gas phase of the first medium is directed downward again along the side of the plate heat exchanger, possibly vertically. Flows in the directed passage.

  According to a preferred aspect of the invention, the passages or passage walls are fixed together so as to form a connected unit, also called a resistor. This unit is preferably formed separately from the heat transfer block and / or the fuselage.

  Further in accordance with a preferred aspect of the present invention, the passages or at least some of the passages are elongated along their respective longitudinal axes (or cylindrical axes), i.e., along their respective longitudinal axes. The extension is greater than the maximum inner diameter of each passage perpendicular to this longitudinal axis.

  The passages can thus flow through the liquid phase of the first medium along their respective longitudinal axis or cylindrical axis, in which case each passage has a respective opening at each end and this opening Thus, the liquid phase can flow into and out of each passage. The two openings of one passage are in this case located opposite to each other along the longitudinal axis or cylindrical axis of each passage, ie aligned with one another.

  According to a preferred aspect of the invention, all the passages have the same length with respect to the longitudinal axis. In contrast to this, in a preferred aspect of the invention, some or all of the passages have different lengths with respect to the longitudinal axis in order to adapt the unit to the curved area of the inner surface of the body of the heat exchanger. Have. This results in a step on the outer surface of the connected unit corresponding to the extension of the inner surface region (for example in a hollow cylindrical body).

  Basically, the unit arranged in the fuselage chamber can be fixed to the fuselage, so that this unit does not particularly contact at least one heat transfer block. Alternatively, the unit can also be fixed to at least one heat transfer block or to a separate support.

  Particularly preferably, according to an aspect of the present invention, each passage is formed by a hollow molded body. A hollow molded body, preferably made of metal (such as aluminum or steel), in this case, forms a wall surrounding each passage, thereby defining or forming each passage. Preferably, the hollow molded bodies are connected to each other so as to form the connected unit. In this case, the hollow molded bodies may be welded to each other, or may be appropriately fixed to each other by other fixing methods, whereby the unit or the hollow molded body register is formed.

  According to another aspect of the present invention, the passage is formed by a plurality of plate-like elements (for example, thin plates) connected to each other. These elements may be formed flat (eg flat thin plate) or may have a structure (eg this element is corrugated or bent or stepped or Zigzag element / thin plate). The individual elements may be fixed to each other, for example, by being inserted into each other, and in some cases may be additionally fixed to each other. For fixing or position fixing, for example, brazed and / or welded connections, rivet connections or other friction-connected, shape-connected and / or material-connected connections are conceivable.

  According to a preferred embodiment of the present invention, the longitudinal axis of the passage extends parallel to the vertical line with respect to the heat exchanger arranged in a predetermined manner. In this case, when the body is horizontal, the longitudinal axis of the passage extends perpendicular to the longitudinal axis or cylindrical axis of the body. In a vertical fuselage, the longitudinal axis of the vertical passage preferably extends parallel to the longitudinal or cylindrical axis of the fuselage.

  According to an optionally preferred aspect of the invention, the longitudinal axis of the passage extends parallel to the horizontal line with respect to the heat exchanger arranged in a predetermined manner. In this case, when the body is horizontal, the longitudinal axis of the passage extends parallel to the longitudinal axis or cylindrical axis of the body. In a vertical fuselage, the longitudinal axis of the horizontal passage preferably extends perpendicular to the longitudinal or cylindrical axis of the fuselage.

  Furthermore, according to a preferred configuration of the present invention, in the case where the passages extend in the horizontal direction, at least some of these passages have a flow resistance so as to have a desired effect on the liquid phase. Is closed or closed.

  In a further preferred embodiment of the invention, the unit or possibly the passage is at least half the height along the vertical line, at least along the vertical line of the at least one plate heat exchanger or heat transfer block. And preferably has a length greater than or equal to the height along the vertical line of the at least one plate heat exchanger or heat transfer block. ing.

  Furthermore, if horizontal passages are provided, these passages are formed along their longitudinal axis, possibly shorter than the length along the same direction of the heat transfer blocks arranged laterally. It's okay.

  Preferably, the unit comprising a plurality of passages or hollow shaped bodies is a section or inner surface area of the fuselage located between the at least one heat transfer block and the fuselage, or in a horizontal direction against said heat transfer block. It is arranged between.

  If a plurality of separated heat transfer blocks are arranged in the fuselage chamber, the unit can also be arranged between two such blocks.

  Finally, in the case of one heat transfer block or in the case of a plurality of heat transfer blocks, a plurality of units each having a plurality of passages may be provided. In this case, each unit is preferably arranged between one of the heat transfer blocks and the fuselage (see above) or between two adjacent heat transfer blocks.

  In this case, each unit may be formed as described above. The further heat transfer block is more preferably configured as a plate heat exchanger, in particular in the form described above.

  Further details and advantages of the invention will be explained in the following with reference to the drawings showing embodiments of the invention. Preferred configurations of the invention are further described in the dependent claims.

1 is a partial sectional view schematically showing a heat exchanger according to the present invention having a vertical body and a vertical passage. FIG. 2 is a plan view partially showing a vertical passage shown in FIG. 1. FIG. 4 is a partial cross-sectional view schematically illustrating another heat exchanger according to the present invention with a horizontal fuselage and a vertical passage. 1 is a partial cross-sectional view schematically showing a heat exchanger according to the present invention having a vertical body and a horizontal passage. FIG. 5 is a plan view partially showing the horizontal passage shown in FIG. 4. FIG. 5 is a partial cross-sectional view schematically illustrating another heat exchanger according to the present invention having a horizontal body and a horizontal passage. FIG. 7 is a cross-sectional view schematically illustrating two heat transfer passages of a plate heat exchanger as may be used in the embodiments of FIGS. 1, 3, 4 and 6.

  FIG. 1 shows a heat exchanger 1 in connection with FIG. The heat exchanger 1 has a vertical, preferably (circular) cylindrical body 2, which defines a body chamber 3 of the heat exchanger 1. In this case, the body 2 has a cylindrical peripheral wall 14, and the peripheral wall 14 is defined by two walls 15 that face each other on the end face side. The longitudinal axis or cylindrical axis of the body 2 coincides with the vertical direction line z.

  In this case, two heat transfer blocks 4 and 5 are arranged side by side in a horizontal direction in the body chamber 3 surrounded by the body 2. These heat transfer blocks 4 and 5 are plate heat exchangers 4 and 5 having a plurality of parallel heat transfer passages P and P ′ (see FIG. 7).

  Each of the plate heat exchangers 4 and 5 has a plurality of heat conduction structures 41 in this case, and these heat conduction structures 41 may be thin plates and are formed in a meander shape when viewed in cross section. I.e. it is, for example, wavy or zigzag-shaped, or has a rectangular extension. These structures 41 are also referred to as fins 41, and are arranged between two flat separation plates or separation thin plates 40 of the plate heat exchangers 4 and 5, respectively. In this way, a plurality of parallel passages or heat transfer passages P and P ′ are formed between the two separation plates 40 (or between one separation plate and one cover plate, see below), Each medium M1, M2 can flow through these passages. The outermost two layers 40 are formed by the cover plates of the plate heat exchangers 4, 5, on the side, each between two adjacent separation plates 40 or between the separation plate and the cover plate 40. A terminal strip 42 is provided on the front end. FIG. 7 shows, as an example in part, a first heat transfer path P for the first medium M1 formed by one fin 41 and two adjacent separation plates 40, adjacent thereto, A second heat transfer path P ′ for the second medium M2 formed by one fin 41 and two adjacent separation plates 40 is shown. Such arrangement of the plurality of passages is preferably repeated in each plate heat exchanger 4, 5, whereby the plurality of first and second heat transfer passages P, P ′ are arranged alternately adjacent to each other. Has been.

  The body chamber 3 is filled with the first medium M1 during the operation of the heat exchanger 1. Such an incoming flow into the heat exchanger 1 is usually two-phase, but it may be liquid only. The liquid phase F1 of the first medium M1 forms a bath surrounding the plate heat exchangers 4 and 5, and the gas phase G1 of the first medium M1 above the liquid phase F1 is above the fuselage chamber 3. Gather in the area and drain from here.

  The liquid phase F1 of the first medium M1 rises into the first heat transfer path P of the plate heat exchangers 4 and 5, and in this case, for example, in a flow that intersects the first medium M1. The liquid is indirectly evaporated by being indirectly transferred by the second medium M2 to be cooled, which is guided to the second heat transfer passage P ′ of the plate heat exchangers 4 and 5. The gas phase G1 of the first medium M1 generated in this case can flow out from the upper ends of the plate heat exchangers 4 and 5, and is discharged from the body chamber 3 above the blocks 4 and 5. Furthermore, a part of the liquid phase F1 in the body chamber 3 circulates. In this case, this part is sent from the lower side to the upper side in the first heat transfer passage P of the plate heat exchangers 4 and 5, Subsequently, it flows downward again outside the plate heat exchangers 4 and 5 in the body chamber 3.

  The second medium M2 is guided to the plate heat exchangers 4 and 5 and flows through the correspondingly arranged second heat transfer passages P ′, and then cooled or liquefied. The plate heat exchanger Discharged from 4,5.

  In order to calm the movement of the liquid phase F1 in the fuselage chamber 3 during the swinging motion of the fuselage 2 in which the longitudinal axis or cylindrical axis of the fuselage 2 swings about the vertical direction line z, FIG. As shown, three units 100 are provided. Each of these units 100 has a plurality of parallel passages 10 each extending along a longitudinal axis L parallel to the longitudinal axis z of the fuselage 2. These passages 10 are preferably formed by a plurality of hollow molded bodies 11 appropriately connected to each other as shown in FIG. These hollow molded bodies 11 define, for example, a cylindrical passage 10. In this case, one end 10 a, 10 b is provided on each end face side, and one opening 10 a faces upward. And located substantially at the height of the upper end of each plate heat exchanger 4, 5 along the vertical direction line z, and the other opening 10 b located facing this opening 10 a faces downward. Thus, it terminates below the blocks 4 and 5 along the vertical direction line z. These passages 10 are preferably arranged adjacent to each other along a second orthogonal spatial direction.

  The liquid phase F1 flowing out from the first passage P at the upper ends of the plate heat exchangers 4 and 5, respectively, can circulate downward again through the vertical passage 10, and then below the liquid phase F1 The plate heat exchangers 4 and 5 enter the first heat transfer passage P from the lower ends thereof, and are pulled upward again based on the thermosyphon effect. At this time, the second medium is partially vaporized. Cool M2.

  The vertical passage 10 in this case is resistant to horizontal flow and thus suppresses the corresponding horizontal movement of the liquid phase F1 of the first medium M1 while such vertical through the passage 10. Directional circulation is protected.

  As shown in FIG. 1, one of the units 100 is disposed between the two plate heat exchangers 4, 5 and laterally with respect to both the blocks 4, 5. The other two units 100 are respectively disposed between one plate type heat exchangers 4 and 5 and a horizontally adjacent section or inner surface region 2 a of the peripheral wall 14 of the body 2.

  FIG. 3 shows a modified embodiment of the heat exchanger 1 shown in FIG. Unlike the one shown in FIG. 1, the heat exchanger 1 has a horizontal elongated body 2. The fuselage 2 extends along a longitudinal or cylindrical axis which coincides with the horizontal line, ie extends perpendicular to the vertical line z. In this case, the two plate-type heat exchangers 4 and 5 are different from those in FIG. 1 and are arranged one after the other along the longitudinal axis of the body 2. Thus, it is adjacent to both sides of one unit 100 formed as described above. In this case, the unit 100 is adjacent to both blocks 4 and 5 over the entire length of the length of both blocks 4 and 5 along the longitudinal axis of the body 2.

  FIG. 4 shows another variation of the heat exchanger 1 of FIG. In this heat exchanger 1, the passage 10 extends in a horizontal direction, that is, in a direction perpendicular to the longitudinal axis of the vertical fuselage 2 that coincides with the vertical direction line z, unlike that in FIG. 1. Yes. In this case, the openings 10a and 10b of the passage 10 are directed horizontally. The unit 100 is arranged with respect to the plate heat exchangers 4 and 5, as in FIG. 1, and the unit 100 between the blocks 4 and 5 is a unit located along the outer surface of the blocks 4 and 5. It has a passage 10 with a flow cross-sectional area greater than 100. When the inclination of the longitudinal axis z of the body 2 shown in FIG. 4 is changed, particularly during the swinging motion of the heat exchanger 1 such that the longitudinal axis is out of the drawing plane, the first medium M1 In order to calm the entire filling water surface of the liquid phase F1 as much as possible, all the units 100 protrude beyond the upper and lower ends of the plate heat exchangers 4 and 5 along the vertical direction line z. In this case, the flow resistance causes calming. For example, when reciprocating between the openings 10a and 10b of the passage 10, the liquid phase F1 receives a flow resistance in the horizontal passage. As shown in FIG. 4, the passage 10 or the unit 100 may be formed by a plurality of hollow molded bodies having a rectangular or square cross section, or flat plate-like elements that are inserted into each other or attached to each other, In particular, it may be formed by a thin plate (see above). The horizontal cross section of the horizontal passage 10 can be formed in a square shape as shown in FIG. 4 or can be circular as shown in FIG. Other forms are also conceivable. In order to increase the horizontal flow resistance, an additional flow resistance (for example, a narrow cross section) 12 can be provided in each horizontal passage 10 or it can be completely closed 12.

  Finally, FIG. 6 shows a heat exchanger 1 with a horizontal passage 10 of the form of FIG. 4, in which the heat exchanger body 2 is formed as shown in FIG. Has been. In this case, the inner surfaces adjacent to each other in the horizontal direction of the blocks 4 and 5 and the peripheral wall 14 of the fuselage 2 on both sides of the plate heat exchangers 4 and 5 arranged one after the other as shown in FIG. A unit 100 is provided with a plurality of horizontal passages 10 arranged adjacent to each other and adjacent to each other in the region or section, but these passages run along the longitudinal axis of the fuselage 2. The extending length is smaller than that of the blocks 4 and 5 located along this direction. Thereby, the disturbance of the circulation of the liquid phase F1 in the vertical direction can be made as small as possible (see above). Furthermore, another unit 100 is arranged between the blocks 4 and 5 along the longitudinal axis of the body 2 of FIG. Also in this case, as described with reference to FIG. 4, the calming of the liquid phase F1 of the first medium functions.

  Basically, the hollow molded bodies 11 or passages 10 connected (or separate) to each other have various cross-sectional shapes (for example, circular, square, honeycomb) and lengths, and each plate heat exchanger 4,5. May be attached to each position of the fuselage chamber 3 where no liquid is provided, but is mainly filled with liquid (i.e., the sides of the blocks 4 or 5, the sides of the blocks 4, 5 and / or the block 4). , 5). The number of units or registers 100 is adaptable. These units 100 flow through the liquid phase F1 only in the vertical direction or only in the horizontal direction. The composite itself provides horizontal flow resistance. This damps the horizontal flow. The unit 100 or the passage 10 can be adapted to the respective requirements with respect to the vertical and horizontal dimensions and may be divided in some cases. The size of the individual passages 10 in the cross section is flexible and can also be adapted to the respective requirements. Individual passages 10 of unit 100 may have various lengths. In particular in the horizontal passage 10 or the hollow shaped body 11, the individual shaped bodies 11 can be closed in order to adapt to the flow resistance. This damps the horizontal flow.

  In summary, the flow direction of the circulating liquid F1 in the container 2 can be greatly influenced by the unit or the hollow molded body register 100 according to the present invention, so that a large number of individual parts are not necessary. Despite the fact that the liquid volume outside the plate heat exchangers 4 and 5 can be greatly segmented, the manufacturing and assembly efforts for this can be kept relatively small. Further, by dividing into segments, the wall thickness of the unit 100 or the passage 10 / hollow molded body 11 may be thin. This is because the composite 100 forms a solid body 100 and can only produce small-scale liquid motion. By adapting the dimensions of the individual elements 10 and the composite 100 as a whole, the natural frequency of the oscillating liquid F1 in the container 2 or the fuselage chamber 3 can be influenced and the movement can be damped. Thereby, excitation at the natural frequency and large vibration amplitude can be prevented.

  Particularly preferably, the heat exchanger 1 according to the invention is used on a floating body on water, for example as a component of a floating installation for the production of liquefied natural gas (LNG).

DESCRIPTION OF SYMBOLS 1 Heat exchanger 2 Body 2a Inner surface 3 Body room 4,5 Plate type heat exchanger 10 Passage 10a, 10b Opening 11 Hollow molding 14 Peripheral wall 15 Wall 40 Separation plate 41 Thermal conduction structure or fin 42 Sidebar 100 Unit M1 1st 1 medium M2 2nd medium G1 gas phase of 1st medium F1 liquid phase of 1st medium P 1st heat transfer path P '2nd heat transfer path z Vertical direction line

Claims (14)

A heat exchanger for indirectly transferring heat between a first medium (M1) and a second medium (M2),
A fuselage (2) having a fuselage chamber (3) for receiving the liquid phase (F1) of the first medium (M1);
At least one heat transfer block (4), the heat transfer block (4) having a first heat transfer path (P) for receiving the first medium (M1), and the first heat transfer block (4). And a second heat transfer path (P ′) for receiving the second medium (M2), whereby heat can be indirectly transferred between the two media (M1, M2), At least one heat transfer block (4) is arranged in the fuselage chamber (3) so that it can be surrounded by the liquid phase (F1) of the first medium (M1) in the fuselage chamber (3). In the heat exchanger,
A plurality of parallel cylindrical passages (10) for guiding the liquid phase of the first medium (M1) are provided in the body chamber (3) with the at least one heat transfer block (4). , 5) is provided on the side of the heat exchanger.   The passages (10) are fastened together so as to be joined together to form a unit (100), which in particular is the at least one heat transfer block (4) and / or the body (2). The heat exchanger according to claim 1, wherein the heat exchanger is formed separately.   The extension length of the passage (10) along the longitudinal axis (L) of each passage (10) is greater than the maximum inner diameter of each passage (10) perpendicular to the longitudinal axis. The heat exchanger according to claim 1 or 2.   The plurality of passages (10) have the same length with respect to the longitudinal axis (L), or at least some of the passages (10), in particular the unit (100) of the fuselage (2). 4. The heat exchanger according to claim 1, wherein the heat exchanger has a different length with respect to the longitudinal axis (L) in order to adapt to the curved area of the inner surface (2 a).   Each said passage (10) is formed by a hollow molded body (11), in particular said hollow molded body (11) is connected to each other so as to form said unit (100). The heat exchanger according to any one of 4 to 4.   The heat exchanger according to any one of claims 1 to 5, wherein the passage (10) is formed by a plurality of plate-like elements connected to each other, and these elements are connected to each other.   The heat exchanger according to any one of claims 1 to 6, wherein the longitudinal axis (L) of the passage (10) extends parallel to the vertical line (z).   The heat exchanger according to any one of claims 1 to 6, wherein the longitudinal axis (L) of the passage (10) extends parallel to a horizontal line.   The heat exchanger according to claim 8, wherein at least some of the passages (10) have flow resistances (12) or are closed (12).   The unit (100) has a length along the vertical line (z) that is at least greater than half the height along the vertical line (z) of the at least one heat transfer block (4). Preferably having a length greater than or equal to the height of the at least one heat transfer block (4) along the vertical line (z). The heat exchanger according to any one of claims 3 to 9, which refers to claim 2, or claim 2.   Citation of claim 2 or claim 2, wherein the unit (100) is arranged between the at least one heat transfer block (4) and an adjacent section (2a) of the fuselage (2). The heat exchanger according to any one of claims 3 to 10.   The heat exchanger (1) has another heat transfer block (5) disposed in the fuselage chamber (3), and the other heat transfer block (5) extends along a horizontal line. The heat exchanger according to claim 1, which is arranged next to the heat transfer block (4).   The heat exchanger according to claim 2 or 12, wherein the unit (100) is arranged between the heat transfer blocks (4, 5).   The heat exchanger (1) has a plurality of units (100), each of which extends parallel to each other, guiding the liquid phase (F1) of the first medium (M1). It has a plurality of cylindrical passages (10). In particular, each unit (100) has one of the heat transfer blocks (4, 5) and an adjacent section (2a) of the body (2). The heat exchanger according to claim 1, which is arranged between or between the two heat transfer blocks (4, 5).

Images