EP2667137A1 - Thermosiphon modulaire et carter de refroidissement - Google Patents
Thermosiphon modulaire et carter de refroidissement Download PDFInfo
- Publication number
- EP2667137A1 EP2667137A1 EP12004062.1A EP12004062A EP2667137A1 EP 2667137 A1 EP2667137 A1 EP 2667137A1 EP 12004062 A EP12004062 A EP 12004062A EP 2667137 A1 EP2667137 A1 EP 2667137A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- modular
- thermosyphon
- barrier walls
- thermosiphon
- evaporator
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 29
- 230000004888 barrier function Effects 0.000 claims abstract description 66
- 239000012809 cooling fluid Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 description 8
- 239000002826 coolant Substances 0.000 description 8
- 239000003570 air Substances 0.000 description 7
- 239000012080 ambient air Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 230000009931 harmful effect Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0233—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/18—Liquid cooling by evaporating liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2230/00—Sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2240/00—Spacing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
Definitions
- the invention relates to a modular Thermosyphon comprising a plurality of ribbed cuboid thermosyphon modules with a respective condenser and evaporator side, which are separated from each other by an extending transversely to the ribs outer barrier wall, wherein a plurality of thermosiphon modules are arranged adjacent and wherein the respective outer barrier walls adjacent to each other in a common plane, which separates the condenser and the evaporator sides from each other.
- the invention also relates to a cooling housing with a modular thermosiphon.
- thermal siphons are also used as heat exchangers. These include a condenser and an evaporator, which are integrated into a closed and filled with a cooling medium cooling circuit.
- the evaporator side typically projects into a lower region from which soft heat is to be removed. Due to the evaporation of the coolant located in the thermosiphon heat energy is removed from the evaporator side.
- the vaporized coolant moves within the closed cooling circuit in a natural cooling circuit up to a condenser side, where it is then put back under the release of heat energy in the liquid state and flows back to the evaporator side.
- the particular advantage of such a thermosyphon is that the heat transport function without using an active element such as a circulating pump or the like, so that a thermosiphon is a particularly safe and reliable variant of a heat exchanger.
- Such a heat exchanger is described, which is composed of a plurality of preferably similar Thermosyphonmodulen and is used in a cooling housing application
- the cooling housing is used to arrange a heat-generating component such as a transformer in a first encapsulated area, wherein the heat by means of the heat exchanger from the first encapsulated area in a second area is transferred from where the heat energy is released by means of forced cooling to the ambient air.
- the encapsulation of the first area serves in particular the purpose of keeping dirt or other harmful environmental influences such as saline air in ship transformers from the first area and thus to ensure greater reliability and longevity of the respective heat-generating component.
- thermosiphon modules to a thermosyphon serves primarily for the purpose of standardization, namely that by a suitable number of identical Thermosyphonmodulen in a simple manner individually a required cooling capacity can be installed in a cooling housing.
- a thermosiphon module generally has a cuboid or disc-like basic shape, which in turn has a rib-like structure.
- a rib usually comprises an upwardly and downwardly leading channel of a closed cooling circuit, wherein the rib-like structure also enlarges the outer surface, so that a heat transfer to the respective surrounding cooling medium is facilitated.
- thermosyphon modules in a juxtaposition of the cuboid thermosyphon modules a strict separation of the evaporator and capacitor sides is prevented by the fact that each adjoining barrier walls of the thermosiphon modules do not close tight and so can be done mixing of the first and second cooling medium.
- contaminants of the second cooling medium such as salty ambient air, may penetrate into the first encapsulated region of the cooling housing.
- thermosiphon of the aforementioned type.
- barrier walls are angled at their respective adjacently arranged sides in such a way that a respective common angled contact surface is formed by the angled side sections.
- the basic idea of the invention is that an increased and improved seal between the barrier walls is formed by the contact surface between the adjacent barrier walls.
- a width of an in each case angled side section of, for example, 3 cm an increase of the contact area by a factor of 15 is given compared with a thickness of the barrier wall of, for example, 2 mm.
- a resilient embodiment of the angled side sections for example by using a spring steel, optionally causes a contact force of adjacent side sections, so that in this way the sealing effect is increased again.
- an assembly of several juxtaposed Thermosyphonmodule to a thermosiphon is particularly simple because a continuous barrier wall is avoided, but this is also carried out modularly.
- the attachment of the adjacent Thermosyphonmodule done, for example, two side support rails with corresponding holes to which then the laterally projecting barrier walls or barrier strips are screwed or secured in any other way.
- thermosyphon module usually has a plurality of ribs, which are arranged parallel to one another and perpendicular to the barrier wall. Therefore, the barrier wall, which is usually arranged at half height, is also a component of a thermosyphon module, which gives it a mechanical stability.
- the angling of the barrier wall according to the invention is a type of profile carrier formed, which increases the mechanical stability of the Thermosyphonmoduls in an advantageous manner.
- the barrier walls have a trapezoidal or U-shaped cross-section.
- the angled side regions are designed as straight surfaces, so that the sealing effect of the adjoining side regions is particularly high.
- Particularly preferred is a U-shaped design of the barrier to view. This allows the most space-saving possible juxtaposition of Thermosyphonmodulen invention.
- the barrier walls of the adjacent thermosiphon modules are arranged with alternating orientation.
- Alternating arrangement means that the depressions formed in the case of, for example, a trapezoidal or U-shaped cross-section are arranged alternately in opposite directions in adjacent barrier walls, so that a roof tile-like overlap is preferably provided.
- a dropping down of any condensed water from an overhead condenser area is reliably prevented in an underlying evaporator area, the condensate then collects in each barrier walls upwardly oriented as sinks.
- a pump device may also be provided which pumps the condensed water collected in the depressions from the condenser region
- a sealing means is at least partially provided on at least one common contact surface.
- a sealant is, for example, a silicone gel or else another sealant which can be easily applied to further increase the tightness of the barrier walls during assembly of the thermosiphon modules.
- elongated clip elements are made of spring steel, for example, and can be easily postponed after mounting a Thermosyphonmoduls invention.
- thermosyphon adjacently arranged side sections of respective barrier walls are repeatedly angled and interlocked.
- the sealing effect is increased again and it is also possible that one or more thermosyphon modules are held by adjacent thermosyphon modules, for example when the side surfaces are sawtooth-like angled and interlocked.
- the object according to the invention is also achieved by a cooling housing, comprising a first encapsulated inner region with a first cooling fluid, which is provided there to arrange a heat-generating component, comprising an adjoining second region, which is intended to be flowed through by a second cooling fluid are, wherein the first and the second region are thermally connected by a heat exchanger.
- the cooling housing is characterized in that a modular thermosyphon according to the invention is used as heat exchanger, wherein the evaporator sides protrude into the first region and the capacitor sides into the second region.
- a cooling housing which on the one hand has a closed first inner region, which is largely shielded from environmental influences.
- the use of a modular heat exchanger according to the invention ensures that the thermal energy arising in the first inner region is removed to the outside, in which case the installed cooling capacity can be adapted particularly simply by installing a corresponding number of thermosiphon modules.
- the Thermosyphonmodule are particularly reliable due to the natural circulation of the coolant contained in them and do not require their own power supply.
- the angling of the barrier walls according to the invention is a ensures a particularly effective separation between encapsulated first interior and adjacent second area, so that the heat-generating component is particularly well protected against harmful effects of the ambient air or dirt.
- a dry-type transformer is arranged in the first encapsulated inner area as the heat-generating component.
- a dry-type transformer has, for example, a power in the range of 1 to 5 MVA and is used, for example, on ocean-going vessels for the on-board power supply.
- an encapsulation according to the invention is particularly important to protect the transformer from the harmful effects of salt-containing sea air.
- air is used as the first and / or second cooling fluid.
- ambient air as the second cooling fluid is suitable as a means of transport of the heat to be removed from the condenser area to an external heat sink.
- At least one conveying device for the first or second cooling fluid is provided for generating a respective cooling fluid flow directed against the evaporator or condenser sides.
- This is, for example, in each case a blower, which blows the ambient air for improved heat exchange against the condenser side or a fan which blows the first cooling fluid in the encapsulated inner region against the evaporator side, so that an inner circuit of the first cooling fluid is formed in the encapsulated inner region.
- Fig. 1 shows an exemplary Thermosyphonmodul 10 according to the prior art in a three-dimensional view.
- This has a plurality of ribs 14, which are arranged transversely to a barrier wall 12.
- Each rib 14 comprises two internal channels for an internal cooling fluid, which transports heat energy in a closed circuit from the evaporator side located below the barrier wall 12 to the condenser side located above the barrier wall 12.
- At the upper and lower end of the thermosyphon module are provided cross-piping.
- the barrier wall 12 is formed by a flat metal strip, so that when stringing together several such thermosiphon modules no gap-free parting plane is formed, which could ensure a secure separation between the evaporator and condenser sides.
- Fig. 2 shows a first exemplary modular thermosyphon 20 according to the invention in a side view.
- Three Thermosyphonmodule 28, 30, 32 are arranged side by side to a modular Thermosyphon, which in their central region respectively U-shaped barrier walls 38, 40, 42 which extend in a common plane 24.
- the reference numeral 22 denotes the respective sides of the condenser, and below the common plane 24, the reference numeral 26, the respective evaporator sides of the thermosiphon modules 28, 30, 32.
- the respective fins of the thermosiphon modules 28, 30, 32 are connected in the upper and lower regions by means of common connection channels 34, 36, each rib having an upwardly and downwardly directed channel.
- the U-shaped barrier walls 38, 40, 42 are aligned alternately, that is, the barrier walls 38 and 42 have the opposite orientation as the intermediate barrier wall 40.
- the barrier walls 38, 40, 42 are also roof tiles similar aligned overlapping, so that a Dripping of condensation water arising in the condenser region 22, even at a gap between the contact surfaces of the angled side sections of the barrier walls 38, 40, 42, does not lead to a transfer of condensed water to the evaporator sides 26.
- the adjacently angled side sections may either directly adjoin each other to form respective contact surfaces 44, 46, or a seal or sealant may be provided therebetween.
- Fig. 3 shows a second exemplary modular Thermosyphon 50 according to the invention in a side view.
- Three Thermosyphonmodule are arranged side by side to a modular Thermosyphon, which in their central region each have a U-shaped barrier wall 58, 60, 62 which extend in a common plane 54.
- Above the common plane 54 are denoted by the reference numeral 52, the respective capacitor sides and below the common plane 54 with the reference numeral 56, the respective evaporator sides of the thermosiphon modules arranged.
- the U-shaped barrier walls 58, 60, 62 are the same in this example, wherein between the adjacent angled side surfaces common contact surfaces 64, 66 are formed, which lead to a significantly increased tightness between the barrier walls.
- a sealing means is optionally provided on the respective contact surfaces or else an elongated clip element which presses both angled side sections against each other.
- Fig. 4 shows a third exemplary modular thermosyphon 70 according to the invention in a side view.
- Three Thermosyphonmodule are arranged side by side to a modular Thermosyphon, which have in their central region respectively trapezoidal barrier walls 78, 80, 82 which extend in a common plane 74.
- Above the common plane 74 are denoted by the reference numeral 72, the respective sides of the capacitor and below the common plane 74 with the reference numeral 76, the respective evaporator sides of the thermosiphon modules arranged.
- the U-shaped barrier walls 78, 80, 82 are aligned alternately in this example, wherein between the adjacent angled side surfaces common contact surfaces 84, 86 are formed, which lead to a significantly increased tightness between the barrier walls.
- FIG. 1 shows an exemplary cooling housing with a dry-type transformer in a schematic sectional view 90.
- a cooling housing for example made of a metal, is subdivided into a first encapsulated area 92 and a second area 94 adjoining it along a partition wall 114.
- a dry-type transformer 110 is arranged, for example with a rated power of 6 MVA. This produces a loss of heat during operation, which is dissipated from the first encapsulated area.
- a circulating circuit 96 of the air located in the first encapsulated area is generated, which is directed against an evaporator region 104 of a modular thermosyphone 100 according to the invention, so that there is a cooling the air takes place.
- Its barrier walls are part of the partition wall 114 in the area of the thermosyphon. Natural circulation of the cooling medium in the modular thermosyphone 100 results in heat transfer of the heat released to the condenser side 102 of the modular thermosyphone 100.
- a current 98 forced from it by a fan 106 is applied to this Directed ambient air, so that the capacitor side emits heat energy to the ambient air.
- Fig. 6 shows variants of multiply angled and provided for a respective toothing side portions of respective barrier walls in a representation 120.
- Reference numeral 122 is a sawtooth-like teeth and the reference numeral 124 denotes a rectangular toothing of multi-angled barrier walls, in each case only one thermosiphon module with a respective Barrier wall is shown.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12004062.1A EP2667137B1 (fr) | 2012-05-24 | 2012-05-24 | Thermosiphon modulaire et carter de refroidissement |
PCT/EP2013/001255 WO2013174470A1 (fr) | 2012-05-24 | 2013-04-26 | Thermosiphon modulaire et enveloppe réfrigérante |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12004062.1A EP2667137B1 (fr) | 2012-05-24 | 2012-05-24 | Thermosiphon modulaire et carter de refroidissement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2667137A1 true EP2667137A1 (fr) | 2013-11-27 |
EP2667137B1 EP2667137B1 (fr) | 2018-04-25 |
Family
ID=48463911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12004062.1A Active EP2667137B1 (fr) | 2012-05-24 | 2012-05-24 | Thermosiphon modulaire et carter de refroidissement |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2667137B1 (fr) |
WO (1) | WO2013174470A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015214601A1 (de) * | 2015-07-31 | 2017-02-02 | Siemens Aktiengesellschaft | Transformator und Verfahren zur Kühlung eines Transformators |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5560180A (en) * | 1978-10-28 | 1980-05-07 | Babcock Hitachi Kk | Heat exchanger |
JPS6091193A (ja) * | 1983-10-25 | 1985-05-22 | Sasakura Eng Co Ltd | ヒ−トパイプ式熱交換器 |
EP0536967A2 (fr) * | 1991-10-07 | 1993-04-14 | Foster Wheeler Energy Corporation | Système de protection pour réchauffeurs d'air à caloduc |
EP2031332A1 (fr) * | 2007-08-27 | 2009-03-04 | ABB Research LTD | Échangeur de chaleur |
EP2284846A1 (fr) | 2009-08-13 | 2011-02-16 | ABB Research Ltd. | Transformateur sec refroidi au moyen d'un échangeur thermique air/air à thermosiphon compact |
-
2012
- 2012-05-24 EP EP12004062.1A patent/EP2667137B1/fr active Active
-
2013
- 2013-04-26 WO PCT/EP2013/001255 patent/WO2013174470A1/fr active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5560180A (en) * | 1978-10-28 | 1980-05-07 | Babcock Hitachi Kk | Heat exchanger |
JPS6091193A (ja) * | 1983-10-25 | 1985-05-22 | Sasakura Eng Co Ltd | ヒ−トパイプ式熱交換器 |
EP0536967A2 (fr) * | 1991-10-07 | 1993-04-14 | Foster Wheeler Energy Corporation | Système de protection pour réchauffeurs d'air à caloduc |
EP2031332A1 (fr) * | 2007-08-27 | 2009-03-04 | ABB Research LTD | Échangeur de chaleur |
EP2284846A1 (fr) | 2009-08-13 | 2011-02-16 | ABB Research Ltd. | Transformateur sec refroidi au moyen d'un échangeur thermique air/air à thermosiphon compact |
Also Published As
Publication number | Publication date |
---|---|
WO2013174470A1 (fr) | 2013-11-28 |
EP2667137B1 (fr) | 2018-04-25 |
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