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WO2015090972A1 - Plaque d'échange de chaleur fonctionnant à l'énergie géothermique servant de chauffage de rail ou d'aiguillage - Google Patents

Plaque d'échange de chaleur fonctionnant à l'énergie géothermique servant de chauffage de rail ou d'aiguillage Download PDF

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Publication number
WO2015090972A1
WO2015090972A1 PCT/EP2014/076444 EP2014076444W WO2015090972A1 WO 2015090972 A1 WO2015090972 A1 WO 2015090972A1 EP 2014076444 W EP2014076444 W EP 2014076444W WO 2015090972 A1 WO2015090972 A1 WO 2015090972A1
Authority
WO
WIPO (PCT)
Prior art keywords
rail
heat exchanger
exchanger plate
point
geothermal probe
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.)
Ceased
Application number
PCT/EP2014/076444
Other languages
German (de)
English (en)
Inventor
Andreas Klenk
Thomas Siebrecht
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.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mahle International GmbH filed Critical Mahle International GmbH
Publication of WO2015090972A1 publication Critical patent/WO2015090972A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/24—Heating of switches
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise

Definitions

  • the present invention relates to a rail / point heater according to the preamble of claim 1.
  • the invention also relates to a rail or switch with such rail / point heater.
  • point heaters are used to prevent the switch from blocking ice and snow.
  • conventional, mainly electrical or gas-fired heating systems are used today.
  • such an electrically or gas-operated heating device is not only maintenance-intensive, but also relatively expensive to operate.
  • the present invention therefore deals with the problem of providing a rail / point heater of the generic type an improved embodiment, which is particularly easy to maintain and inexpensive.
  • the present invention is based on the general idea to transfer a known from the domestic heating principle now for the first time to the heating of rails or points, so that a rail / point heater according to the invention has a geothermal probe and geothermal, the means by geothermal, can be heated.
  • geothermal heating of switches or rails is significantly better, especially from the point of view of operating costs and environmental compatibility, than previously known electric or gas-fired heating systems.
  • the rail / point heater according to the invention is designed such that it does not require a separate heat pump, so that it is not only in operation, but also in the construction and production significantly cheaper than previously known heating systems.
  • the heat exchanger plate comprises an upper cover layer, a lower cover layer and an intermediate layer arranged therebetween.
  • the upper cover layer, the lower cover layer and / or the intermediate layer are formed from sheet metal.
  • flow channels for both the rising vapor refrigerant and the liquid back-flowing refrigerant are present.
  • the flow channels can be used simultaneously in one direction by the rising vapor refrigerant and in the other direction by the liquid flowing back refrigerant. Due to the three-layer structure of the heat exchanger plate according to the invention, this can be structurally very simple, wherein the individual layers are preferably fluid-tightly soldered together.
  • the rail / point heater on a rail in heat-transmitting contact can be brought heat exchanger plate and connected thereto and penetrating into the ground geothermal probe.
  • At least one condensate and steam channel is arranged so that a refrigerant in the manner of a so-called heat pipe or a thermosyphon can circulate therein.
  • the refrigerant condenses in the heat exchanger plate by a heat transfer to the rail to be heated and is thereby liquefied and flows through the condensate and steam channel down into the geothermal probe. Due to the existing geothermal the liquefied condensate is now evaporated again and rises in the condensate and steam channel upwards back into the heat exchanger plate. Once there, there is a heat transfer to the rail and thus a liquefaction of the gaseous refrigerant, whereby a continuous and without external energy supply austiciandes heating system for heating the rail or the switch can be created.
  • the geothermal probe can also be designed in the manner of a thermosyphon, that is, a gravity-driven heat pipe, so that the refrigerant circulates exclusively due to gravity in the geothermal probe and in particular in the condensate and steam channel.
  • a thermosyphon that is, a gravity-driven heat pipe
  • the refrigerant or generally a heat transfer medium independently flows back from the heat exchanger plate due to gravity in the earth heat probe in which it evaporates again due to the existing geothermal energy and the condensate and steam channel up in the heat exchanger plate rises.
  • the refrigerant or generally the heat transfer medium condenses due to the heat transfer to the rail to be heated and flows liquid, e.g.
  • the heat exchanger plate is stepped and connected at the lowest point with the geothermal probe.
  • a drain or the inlet of the condensate and steam channel must be placed in the geothermal probe at the lowest point of the heat exchanger plate.
  • the step-shaped Formation of the heat exchanger plate according to the invention also allows a flat concern to be heated rail or switch, whereby heat transfer and thus heating of the rail or switch can be optimized.
  • the condensate and steam channel is centrally located in the geothermal probe and surrounded by a thin-walled tube.
  • the flowing back of the liquid heat transfer medium, such as the refrigerant then takes place on the inner wall of the tube of the condensate and steam channel, so that the geothermal probe is generally relatively simple.
  • the geothermal probe has an inserted into the intermediate layer and connected to the upper cover layer, in particular soldered, federal government.
  • an assembly of the geothermal probe is simplified to the heat exchanger plate and in particular targeted flow conditions of the refrigerant can be forced within the heat exchanger plate.
  • the collar on the geothermal probe makes it possible to solder both the intermediate layer and the upper cover layer flat, so that a firm and fluid-tight connection can be achieved.
  • FIG. 1 shows a rail / point heater according to the invention in the mounted state on a rail, in particular a switch,
  • FIG. 2 is a detailed view of a heat exchanger plate of the rail / point heater according to the invention with indicated internal channels,
  • Fig. 3 is a detail view of FIG. 2 to illustrate the connection of a geothermal probe to the heat exchanger plate.
  • a rail / point heater 3 according to the invention which has a geothermal probe 4 and can be heated by means of geothermal energy, is arranged on a rail 1 or a switch 2.
  • the rail / point heater 3 according to the invention has a heat exchanger 5 which can be brought into contact with the rail 1 or the switch 2 in the heat-transferring contact and which is shown in detail in FIGS. 2 and 3.
  • the geothermal probe 4 and the heat exchanger plate 5 is at least one condensate and steam Channel 6, so that a refrigerant or generally a heat transfer medium in the manner of a so-called heat pipe or a thermosyphon can circulate.
  • the heat exchanger plate 5 has an upper cover layer 8, a lower cover layer 9 and an intermediate layer 10 arranged therebetween.
  • the intermediate layer 10 defines the course of a multiplicity of flow channels 11, on whose inner walls the ascending, vaporous refrigerant condenses.
  • the intermediate layer 10 may for example be formed as a stamped part, wherein the side walls of the flow channels 1 1 are formed as recesses between tongue-like webs of the intermediate layer 10, ie that the side walls of the flow channels 1 1 are punched out of a solid material of the sheet of the liner 10.
  • the cover layers 8, 9 are connected to the intermediate layer 10, for example, soldered, the mutually facing surfaces of the cover layers 8, 9 together with the recesses of the intermediate layer 10, the flow channels 1 1.
  • the heat exchanger plate 5 may be formed stepwise according to the embodiments shown in Figures 1 and 2, wherein the step shape shown, for example, by the forming of the complete heat exchanger plate 5 can be produced, ie after the originally each flat and flat cover layers 8, 9 with the also originally flat and flat liner 10 are joined together.
  • the heat exchanger plate 5 is flexibly adaptable to the respective installation situation.
  • the heat exchanger plate 5 is connected to the geothermal probe 4 at the lowest point. This allows a backflow of the condensed refrigerant solely due to gravity, so that in particular can be dispensed with an expensive and energy-demanding heat pump.
  • the geothermal probe 4 has an inserted into the intermediate layer 10 and connected to the upper cover layer 8, in particular soldered, collar 12 (see Figure 3), which allows a reliable and fluid-tight connection between the geothermal probe 4 and the heat exchanger plate 5.
  • the ascending vapor refrigerant with broken arrows 13 and the liquid recirculating refrigerant with continuous arrows 14 are designated.
  • the heat exchanger plate 5 has a shape adapted to the rail 1 or switch 2, as can be seen from the left and right illustration in FIG Figure 1 is shown. Looking at FIG.
  • the heat exchanger plate 5 has an upwardly bent edge 15 in an upper region, by means of which a further enlarged, heat-transmitting contact with the rail 1 or switch 2 to be heated can be produced.
  • the rail / point heater 3 according to the invention can thus heat a switch without external power and technically extremely easy and maintenance-free.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

La présente invention concerne un chauffage de rail/d'aiguillage (3) qui possède une sonde géothermique (4) et qui peut être chauffé par le biais de l'énergie géothermique. Le chauffage de rail/d'aiguillage (3) possède une plaque d'échange de chaleur (5) qui peut être mise en contact caloporteur avec un rail (1) ou un aiguillage (2) ainsi qu'une sonde géothermique (4) raccordée à celle-ci et pénétrant dans le sous-sol. La plaque d'échange thermique (5) comprend une couche de protection supérieure, une couche de protection inférieure ainsi qu'une couche intermédiaire disposée entre celles-ci. Il est ainsi possible de garantir un chauffage de l'aiguillage fiable et économique en énergie.
PCT/EP2014/076444 2013-12-19 2014-12-03 Plaque d'échange de chaleur fonctionnant à l'énergie géothermique servant de chauffage de rail ou d'aiguillage Ceased WO2015090972A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013226740.1 2013-12-19
DE102013226740.1A DE102013226740A1 (de) 2013-12-19 2013-12-19 Schienen-/Weichenheizung

Publications (1)

Publication Number Publication Date
WO2015090972A1 true WO2015090972A1 (fr) 2015-06-25

Family

ID=52003787

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/076444 Ceased WO2015090972A1 (fr) 2013-12-19 2014-12-03 Plaque d'échange de chaleur fonctionnant à l'énergie géothermique servant de chauffage de rail ou d'aiguillage

Country Status (2)

Country Link
DE (1) DE102013226740A1 (fr)
WO (1) WO2015090972A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20321755U1 (de) * 1980-07-08 2009-06-18 Feldmann, Wolfgang, Dipl.-Ing. Anlage zur Beheizung von Bahnanlagen
WO2009109664A1 (fr) * 2008-03-07 2009-09-11 Tripe S Gmbh Système de chauffage d'aiguillage
WO2010142720A1 (fr) * 2009-06-11 2010-12-16 Balfour Beatty Plc Système de chauffage d'aiguilles de rail
WO2013037635A1 (fr) * 2011-09-13 2013-03-21 Triple S-Gmbh Système réchauffeur d'aiguilles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112008001855A5 (de) * 2007-04-25 2010-04-22 Feldmann, Wolfgang, Dipl.-Ing. Wärmeübertragereinheit zur Beheizung von Anlagen und Flächen und Weichenheizung
DE102012100545B4 (de) * 2012-01-23 2016-06-30 Pintsch Aben geotherm GmbH Wärmeübertrager für Weichen, Weichenheizeinrichtung und Gleitstuhl

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20321755U1 (de) * 1980-07-08 2009-06-18 Feldmann, Wolfgang, Dipl.-Ing. Anlage zur Beheizung von Bahnanlagen
WO2009109664A1 (fr) * 2008-03-07 2009-09-11 Tripe S Gmbh Système de chauffage d'aiguillage
WO2010142720A1 (fr) * 2009-06-11 2010-12-16 Balfour Beatty Plc Système de chauffage d'aiguilles de rail
WO2013037635A1 (fr) * 2011-09-13 2013-03-21 Triple S-Gmbh Système réchauffeur d'aiguilles

Also Published As

Publication number Publication date
DE102013226740A1 (de) 2015-06-25

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