EP0290627B1 - Tube caloporteur pour le refroidissement de materiaux - Google Patents

Tube caloporteur pour le refroidissement de materiaux Download PDF

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Publication number
EP0290627B1
EP0290627B1 EP87908018A EP87908018A EP0290627B1 EP 0290627 B1 EP0290627 B1 EP 0290627B1 EP 87908018 A EP87908018 A EP 87908018A EP 87908018 A EP87908018 A EP 87908018A EP 0290627 B1 EP0290627 B1 EP 0290627B1
Authority
EP
European Patent Office
Prior art keywords
jacket
cooler
heat
heat pipe
channels
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
EP87908018A
Other languages
German (de)
English (en)
Other versions
EP0290627A4 (fr
EP0290627A1 (fr
Inventor
Alexandr Naumovich Gershuni
Valery Stepanovich Maisotsenko
Vladilen Kominovich Zaripov
Mikhail Grigorievich Semena
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.)
Kievsky Politekhnichesky Institut Imeni
ODESSKY INZHENERNO-STROITELNY INSTITUT
Original Assignee
Kievsky Politekhnichesky Institut Imeni
ODESSKY INZHENERNO-STROITELNY INSTITUT
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 Kievsky Politekhnichesky Institut Imeni, ODESSKY INZHENERNO-STROITELNY INSTITUT filed Critical Kievsky Politekhnichesky Institut Imeni
Publication of EP0290627A1 publication Critical patent/EP0290627A1/fr
Publication of EP0290627A4 publication Critical patent/EP0290627A4/fr
Application granted granted Critical
Publication of EP0290627B1 publication Critical patent/EP0290627B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F28D15/04—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 with tubes having a capillary structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/911—Vaporization

Definitions

  • the invention relates to a cooler in the form of a heat pipe for cooling substances.
  • the invention can be used for cooling solid, liquid and gaseous substances such as food, medical and biological preparations, chemical substances, etc.
  • the invention can be used to maintain the temperature conditions during the operation of heat-stressed parts of various equipment, devices and apparatus.
  • Coolers for materials in the form of a heat pipe with an evaporation and a condensation zone are known.
  • the heat is extracted from the substance to be cooled in the evaporation zone and the heat is given off to the coolant in the condensation zone.
  • a disadvantage of these coolers is that they cannot achieve a cooling effect, ie a temperature below the coolant temperature on the surface of the cooler Tube can not be reached.
  • Another disadvantage is a small heat exchange area of the heat pipe when exchanging heat with the surroundings, which severely limits the possibilities of the heat pipe to maintain the required heat status of the objects, and the heat pipe as a heat transfer element between the flows of the "hot” and the "cold”"Medium to be transferred heat flow is emitted in a low value.
  • the disadvantage mentioned is particularly pronounced under the conditions when the gas streams wash around the housing surface in the evaporation and in the condensation zone of the heat pipe.
  • a cooler for materials is known, which is designed in the form of a heat pipe (S. Chi “heat pipes", theory and practice, Moscow, Mashinostroenie, 1981, pp. 39 to 40 Fig. 1.24, 1.25), which has a housing with a Evaporation zone, in which heat is extracted from the material to be cooled, and with a condensation zone, which is provided with outer fins cooled by a gas stream.
  • a heat pipe S. Chi "heat pipes", theory and practice, Moscow, Mashinostroenie, 1981, pp. 39 to 40 Fig. 1.24, 1.25
  • the gas flow around the heat pipe is in no way restricted, resulting in low gas velocity between the fins, which results in a low heat dissipation coefficient and a low cooling efficiency.
  • This cooler like the previously described cooler, allows a substance to be cooled to a certain temperature which, however, exceeds the coolant temperature. With the cooler, however, a substance cannot be cooled to a temperature below the coolant temperature, ie a cooling effect cannot be achieved
  • a disadvantage of the cooler is also the fact that the effectiveness in cooling a substance (with a given internal heat resistance of the heat pipe and a given coolant temperature) can only be increased by increasing the area of the outer fins and by more intensely giving off heat to the gas flow, as a result of which the mass, the dimensions, the metal expenditure and the energy consumption for the fan drive are increased. In addition, certain limits are set in this regard, which are due to the physical laws of the heat transfer processes.
  • a cooler which consists of a metal block to which a semiconductor device is attached and at least one heat pipe (GB-A-2 167 550).
  • the condensation zone of the heat pipe (or the heat pipes) has outer ribs and is provided with a jacket which is open for movement of a gas flow from one side.
  • the presence of the jacket allows the gas flow to be directed sensibly with an increase in its velocity between the fins, resulting in an increase in cooling efficiency.
  • this known cooler has all the other disadvantages of the cooler described above, i.e. still insufficient cooling of the semiconductor device, and the inability to achieve a cold effect.
  • a cooling effect can be achieved by means of cooling devices and devices of various types and designs.
  • all of these coolers have a number of significant disadvantages: high energy expenditure, which leads to a large increase in energy consumption when used massly; Difficulties in manufacture, operation and repair, which result in significant production and operating costs; Environmental hazard, due to the use of freon, ammonia and other toxic substances as coolants.
  • An object of the invention is to eliminate the disadvantages described above.
  • the invention has for its object to provide a cooler for fabrics in the form of a heat pipe with such a design that the cooler has a cooling effect and an increased cooling efficiency.
  • a heat pipe for cooling substances with an evaporation zone in which heat is extracted from the substance to be cooled, and with a condensation zone which is provided with outer fins around which a gas stream flows the heat pipe having a jacket which is suitable for the Gas flow supply is open from one side, characterized in that the outer ribs are arranged in the jacket such that their end faces form a cavity for the gas flow reversal with the wall of the jacket on the other side, the adjacent ribs on the side of the gas supply in pairs below Formation of channels between each pair and within each pair are hermetically connected, the walls of the inner channels formed are provided with a coating with capillaries and pores, the ends of which come into contact with a liquid medium, and that on the jacket in the area of the inner channels at the Place the hermetic connection of the ribs to pairs of openings for the exhaust gas is provided in the atmosphere.
  • a water container is provided in the jacket.
  • Heat pipe there is the possibility to achieve a cooling effect, i.e. to cool a substance to a temperature below the coolant temperature and to increase the cooling efficiency.
  • the rib temperature drops, the gas flow absorbs the heat, becomes moist and is expelled into the atmosphere through the openings in the jacket.
  • the temperature of the condensation zone and the substance to be cooled is reduced, and there is an additional cooling of the gas stream in the channels between the pairs of ribs.
  • a peculiar circuit for evaporative cooling is obtained, in which a gas (for example air) does not enter the interior channels from the environment as in the conventional circuit, but already cooled gas exiting the channels between the pairs, which occurs in contrast to the usual circuit, it allows the cooling limit to be lowered to a temperature below the wet temperature of the atmospheric air.
  • a gas for example air
  • openings for the exit of the exhaust air into the atmosphere are expediently provided on the jacket in the area of the inner channels at the location of the hermetic connection of the ribs to pairs.
  • the cooler is equipped with the water container in the jacket.
  • the substance to be cooled constantly develops a considerable amount of heat, its temperature can be reduced to a value exceeding the temperature of the inflowing air with the cooler according to the invention, the cooling efficiency being much higher compared to the known existing coolers in the form of heat pipes, ie a much lower temperature of the substance to be cooled can be achieved than in the known analog coolers.
  • the cooler according to the invention has significant advantages compared to the known coolers.
  • a cooler designed as described above on the basis of a copper heat pipe with a diameter of 14 mm, which has an evaporation and a condensation zone each 150 mm long and in which on the surface of the condensation zone rectangular copper ribs with a size of 100 ⁇ 70 mm and a thickness of 0.5 mm are arranged at a distance of 3 mm from each other, at a temperature of the incoming air of 20 ° C, a relative humidity of 50% and a throughput of 25 kg / h a surface temperature of the heat pipe in reached the evaporation zone of 14.6 ° C, ie maintain a temperature of 5.4 ° C below the temperature of the incoming air.
  • a cooler according to the invention can be manufactured and used for household and industrial use as a stationary, portable and built-in cooler. Furthermore, a cooler according to the invention is characterized by a low specific energy consumption, reliability and simplicity in operation, small size, small dimensions and environmental friendliness.
  • the cooler (Fig. 1, 2) is in the form of an axial heat pipe 1 with an evaporation and a condensation zone 2 and 3, respectively. Rectangular transverse ribs 4 are provided on the surface of the condensation zone 3.
  • the cooler has a jacket 5 which is open for the supply of a gas stream (for example an air stream) from one of the sides.
  • the said ribs 4 are arranged such that their end faces form a cavity A for the airflow reversal with the wall of the jacket 5 on the side opposite the air flow supply side.
  • the adjacent fins 4 are hermetically connected to pairs 6 on the air supply side to form channels 7 between each pair and channels 8 within each pair.
  • the walls of the inner channels 8 have a covering 9 with capillaries and pores, which is produced directly on the ribs 4 by any method or is applied and fastened to these in a known method.
  • the ends of the coating 9 with capillaries and pores are in contact with a liquid medium such as water 10, which is located in a container 11 housed in the jacket 5.
  • openings 12 are provided in the area of the inner channels 8 at the point of the hermetic connection of the ribs to pairs for the exit of the exhaust air into the atmosphere.
  • the cooler for fabrics works as follows: an air flow from the environment is fed into the channels 7 between each pair 6 of the fins 4, flows through these channels and enters the cavity A, where it is reversed and directed into the inner channels 8. In the inner channels 8, the air flows in countercurrent to the air in the channels 7. When the wet coating 9 with capillaries and pores, wetted with water 10 from the container 11, is evaporated through the air, the moisture evaporates, as a result of which the heat from the ribs 4 and the ribbed outer surface of zone 3 of the heat pipe is removed. The moist exhaust air flow exits into the atmosphere via the openings 12.
  • the cooler can be designed in the form of a heat pipe with longitudinal ribs in the condensation zone.
  • the gas flows in the channels run parallel to the heat pipe axis.
  • FIG. 3 shows a further embodiment variant of the invention, which represents a coaxial heat pipe.
  • the evaporation zone 2 and the condensation zone 3 are designed as coaxially arranged shells, and the heat is not transferred axially from the evaporation zone to the condensation zone, as in the embodiment according to FIG. 1, but radially.
  • Such a constructive solution makes it possible to create a cooling chamber B, which is conveniently arranged from the point of view of the function, for the substance to be cooled with unchanged dimensions of the cooler.
  • the construction elements and the operation of the cooler in this embodiment variant are similar to that described above.
  • the fabric cooler does not consist of a single heat pipe but of a set of heat pipes in which the condensation zones have common outer ribs which are arranged in the jacket.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

Le dispositif est composé d'un tuyau à chaleur (1) ayant une zone d'évaporation et de condensation (2, 3) et pourvu, dans la zone (3), de nervures externes (4). Le réfrigérant est équipé d'une enveloppe (5) ouverte d'un côté pour laisser entrer le gaz, et les nervures (4) sont disposées à l'intérieur de manière à former, de l'autre côté, au moyen de leur face extrème, appliquée à la paroi de l'enveloppe (5), une chambre (4) pour dévier l'écoulement gazeux. Les nervures adjacentes (4) sont reliées de manière hermétique par paires de manière à fournir des canaux (7, 8) à l'intérieur des paires et entre celles-ci. Les parois des canaux internes (8) sont pourvues d'une couche capillaire-poreuse (9), dont les extrémités sont mises en contact avec un milieu liquide (10).

Claims (2)

1. Tube caloporteur (1) destiné à la réfrigération de matières, comportant une zone d'évaporation (2), dans laquelle de la chaleur est prélevée de la matière qu'il s'agit de réfrigérer, et une zone de condensation (3) qui est munie de nervures extérieures (4) qui sont balayées par un courant de gaz, le tube caloporteur comportant une enveloppe (5) qui est ouverte d'un côté pour permettre l'arrivée du courant de gaz, caractérisé en ce que des nervures extérieures (4) sont disposées sur l'enveloppe (5) de façon telle que leurs côtés frontaux forment avec la paroi de l'enveloppe (5) située de l'autre côté, un espace creux (A) destiné au passage du courant de gaz dans l'autre sens, en ce que les nervures voisines (4) sont reliées hermétiquement du côté de l'arrivée du gaz pour constituer des paires de nervures (6) qui forment des canaux (7, 8) entre chaque paire et sont hermétiquement reliés à l'intérieur de chaque paire, caractérisé de plus en ce que les parois des canaux intérieurs (8) ainsi formés sont munies d'un revêtement (9) comportant des capillaires et des pores, dont les extrémités sont en contact avec un milieu fluide (10) et en ce que sur l'enveloppe (5), sont prévues des ouvertures (12) pour la sortie du gaz évacué dans l'atmosphère, lesquelles ouvertures sont situées dans la zone des canaux intérieurs (8) à l'endroit de la liaison hermétique des nervures (4) formant des paires.
2. Tube caloporteur selon la revendication 1, caractérisé en ce qu'un récipient d'eau (11) est disposé dans l'enveloppe (5).
EP87908018A 1986-11-18 1987-11-16 Tube caloporteur pour le refroidissement de materiaux Expired - Lifetime EP0290627B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU4148435 1986-11-18
SU864148435A RU1768914C (ru) 1986-11-18 1986-11-18 Теплова труба

Publications (3)

Publication Number Publication Date
EP0290627A1 EP0290627A1 (fr) 1988-11-17
EP0290627A4 EP0290627A4 (fr) 1989-04-12
EP0290627B1 true EP0290627B1 (fr) 1991-06-05

Family

ID=21268006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87908018A Expired - Lifetime EP0290627B1 (fr) 1986-11-18 1987-11-16 Tube caloporteur pour le refroidissement de materiaux

Country Status (6)

Country Link
US (1) US4842052A (fr)
EP (1) EP0290627B1 (fr)
JP (1) JPH01501413A (fr)
AU (1) AU599740B2 (fr)
RU (1) RU1768914C (fr)
WO (1) WO1988004022A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5050391A (en) * 1991-01-18 1991-09-24 Ari-Tec Marketing, Inc. Method and apparatus for gas cooling
DE69414970T2 (de) * 1993-10-06 1999-05-27 Kansai Electric Power Co Wärmerohr und Gas-Flüssigkeit-Kontaktvorrichtung mit Wärmeaustausch, mit Wärmerohren, und Plattenwärmetauscher mit Gas-Flüssigkeit-Kontakt
NL1021812C1 (nl) * 2002-04-26 2003-10-28 Oxycell Holding Bv Dauwpuntskoeler.
US7093452B2 (en) * 2004-03-24 2006-08-22 Acma Limited Air conditioner
US7181918B2 (en) * 2004-03-25 2007-02-27 Oxycell Holding B.V. Vehicle cooler

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1999074A (en) * 1934-07-24 1935-04-23 Eugene N Baldwin Condenser
US2218407A (en) * 1937-08-25 1940-10-15 E A Lab Inc Air conditioner
US3714981A (en) * 1971-02-03 1973-02-06 Noren Prod Inc Heat shield assembly
SU474122A1 (ru) * 1973-05-07 1975-06-14 Московский Институт Электронного Машиностроения Устройство дл охлажени
SU700771A1 (ru) * 1976-06-01 1979-11-30 Ордена Трудового Красного Знамени Институт Тепло- И Массообмена Им. А.В.Лыкова Ан Белорусской Сср Центробежна аксиальна теплова труба
DE2656030A1 (de) * 1976-12-10 1978-06-15 Kloeckner Humboldt Deutz Ag Waermetauscher
DE2841051A1 (de) * 1978-09-21 1980-04-03 Daimler Benz Ag Waermeuebertragung nach dem prinzip des waermerohres
SU851013A1 (ru) * 1979-11-14 1981-07-30 За витель Солнечный нагреватель
CA1146431A (fr) * 1980-06-26 1983-05-17 Wilfred B. Sorensen Chasse thermique pour la circulation de fluides caloporteurs
FR2494419A1 (fr) * 1980-11-14 1982-05-21 Charbonnier Roger Appareil accumulateur de chaleur ou de froid muni d'un echangeur unidirectionnel
US4381817A (en) * 1981-04-27 1983-05-03 Foster Wheeler Energy Corporation Wet/dry steam condenser
SU1121551A1 (ru) * 1983-04-27 1984-10-30 Ордена Трудового Красного Знамени Институт Тепло- И Массообмена Им.А.В.Лыкова Солнечный коллектор
JPS6089687A (ja) * 1983-10-19 1985-05-20 Fuji Electric Corp Res & Dev Ltd 環状ヒ−トパイプ
JPS61113265A (ja) * 1984-11-08 1986-05-31 Mitsubishi Electric Corp 半導体素子等の冷却装置

Also Published As

Publication number Publication date
AU8334587A (en) 1988-06-16
RU1768914C (ru) 1992-10-15
EP0290627A4 (fr) 1989-04-12
AU599740B2 (en) 1990-07-26
WO1988004022A1 (fr) 1988-06-02
US4842052A (en) 1989-06-27
EP0290627A1 (fr) 1988-11-17
JPH01501413A (ja) 1989-05-18

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