WO2011024371A1 - Dispositif de refroidissement par évaporation - Google Patents

Dispositif de refroidissement par évaporation Download PDF

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Publication number
WO2011024371A1
WO2011024371A1 PCT/JP2010/004387 JP2010004387W WO2011024371A1 WO 2011024371 A1 WO2011024371 A1 WO 2011024371A1 JP 2010004387 W JP2010004387 W JP 2010004387W WO 2011024371 A1 WO2011024371 A1 WO 2011024371A1
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WO
WIPO (PCT)
Prior art keywords
chamber
space
evaporation chamber
pressure
cooling device
Prior art date
Application number
PCT/JP2010/004387
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English (en)
Japanese (ja)
Inventor
佐藤祐
元永昇
西村靖史
Original Assignee
株式会社ササクラ
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 株式会社ササクラ filed Critical 株式会社ササクラ
Priority to CN2010800037913A priority Critical patent/CN102265101A/zh
Publication of WO2011024371A1 publication Critical patent/WO2011024371A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus

Definitions

  • the present invention relates to an evaporative cooling device that performs cooling using evaporation and condensation of a liquid having evaporability such as water.
  • a steam compression refrigerator for example, see Patent Document 1.
  • an evaporator 60 a condenser 62 interconnected to the evaporator 60 by a connecting pipe 61, and the evaporator 60 and the condenser 62.
  • a compressor 64 disposed in a connecting pipe (duct) 63 that connects the two to each other.
  • the inside of the evaporator 60 is evaporated by evacuating the interior with the vacuum pump 65 and the compressor 64 is operated, and the temperature in the evaporator 60 is lowered to produce cold water
  • a cold water pump 66 supplies the load 67 such as a radiant panel.
  • the water vapor evaporated by the evaporator 60 is compressed by the compressor 64 and then guided to the condenser 62.
  • the condenser 62 it is condensed by the cooling water from the cooling tower 68 and returned to the water again.
  • the cooling water heated up by the condensation of the high temperature steam is sent to the cooling tower 68 by the cooling water pump 69, and the heat is radiated to the outside by the cooling tower 68.
  • the evaporator 60 and the condenser 62 are each constituted by individual containers, and in order to arrange the individual containers in this way, a large installation space is required and the apparatus itself is large. Along with this, there is a problem that costs increase in terms of materials and manufacturing.
  • the present invention has been made in view of the above-described points, and it is an object of the present invention to reduce the installation space and to reduce the size of the entire apparatus, and further reduce the cost in terms of materials and manufacturing.
  • An evaporative cooling apparatus includes an evaporation chamber for boiling and evaporating an evaporable liquid at a pressure lower than atmospheric pressure, a vapor compressor for compressing vapor generated in the evaporation chamber, and the vapor compressor compressing the vapor.
  • the shape of the single container is not particularly limited as long as it can be sealed, and may be, for example, a cylindrical shape that can be sealed, a rectangular tube shape, or the like.
  • the partition may be double or more.
  • the partition is not particularly limited as long as the inside of a single container can be partitioned into at least two chambers, an evaporation chamber and a condensation chamber.
  • the volumes of the evaporation chamber and the condensation chamber may be equally divided by the partition, or may be partitioned unevenly.
  • the partition may be composed of, for example, a plate material that is separate from the container, and may be integrated with the container by welding or the like.
  • the partition may be referred to as a partition plate, or may constitute a part of the container wall and may be referred to as a partition wall.
  • the evaporation chamber and the condensing chamber are formed in a single container instead of separate containers. Therefore, the evaporation chamber and the condensing chamber are configured as separate containers, and two containers are formed. Unlike the conventional apparatus that has been installed, the overall size of the apparatus can be reduced, the installation space can be reduced, and further, the material cost and thus the manufacturing cost can be reduced. In addition, since the space is interposed between the double partitions interposed between the evaporation chamber and the condensation chamber, this space is used as a space for heat insulation to effectively transfer heat from the condensation chamber to the evaporation chamber. It can block
  • the material constituting the partition may be a material having a low thermal conductivity different from that of the container, and a heat insulating material is filled in the space between the double partitions. May be.
  • the space interposed between the double partitions is in a reduced pressure state.
  • the space may be sealed in a reduced pressure state at the manufacturing stage, or the space may be connected to a vacuum pump or the like to be in a reduced pressure state.
  • any one of the evaporating chamber and the condensing chamber and a space between the two partitions communicate with each other through a pressure guiding tube, and the pressure in the one of the chambers is The pressure in the space is the same pressure.
  • the pressure in the space between the double partitions is the same as the internal pressure of either the evaporation chamber or the condensation chamber.
  • the stress due to the pressure is not received, so that the material cost can be reduced by making the structure thinner than the other partition.
  • the space becomes a vacuum lower than the atmospheric pressure, heat transfer from the condensation chamber to the evaporation chamber can be effectively blocked.
  • the double partition is constituted by two partition plates facing each other across the space.
  • the partition plates sandwich the space between them, heat transfer between the evaporation chamber and the condensation chamber can be prevented via the partition plates.
  • the single container includes a cylindrical container body, and the evaporation chamber and the two partition plates bisect a circular cross section of the container body.
  • Each of the condensing chambers is partitioned and formed in a semicylindrical shape.
  • the apparatus can be downsized with a simple structure. it can.
  • the entire apparatus is reduced in size and installed as compared with the conventional apparatus in which the evaporation chamber and the condensation chamber are formed as separate containers. Space and material and manufacturing costs can be reduced. Moreover, since the space between the evaporation chamber and the condensing chamber is at least double partitioned, the heat transfer from the condensing chamber to the evaporation chamber is effectively blocked by the space, effectively preventing a decrease in thermal efficiency. can do.
  • FIG. 1 is a diagram showing a system configuration example of an evaporative cooling apparatus according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of the container of FIG.
  • FIG. 3 is a side view of the container of FIG. 4 is a cross-sectional view taken along the line AA in FIG.
  • FIG. 5 is a diagram showing a system configuration example of an evaporative cooling device according to another embodiment of the present invention.
  • FIG. 6 is a cross-sectional view of a container according to another embodiment of the present invention.
  • FIG. 7 is a diagram showing a system configuration example of a conventional apparatus.
  • FIG. 1 shows a system configuration of an evaporative cooling apparatus according to an embodiment of the present invention.
  • the inside of a single sealed container 1 is divided into two chambers by two partition plates 2a and 2b as described later.
  • One chamber is the evaporation chamber 3, the other chamber is the condensation chamber 4, and the space 5 is interposed between the two partition plates 2a and 2b. This space 5 can insulate the evaporation chamber 3 and the condensation chamber 4.
  • the evaporation chamber 3 and the condensation chamber 4 can be disposed compactly adjacent to each other inside the single container 1. Therefore, it is possible to reduce the size of the entire apparatus and to reduce manufacturing costs and material costs. In addition, it is possible to effectively suppress the heat transfer between the two chambers 3 and 4 to prevent a decrease in thermal efficiency.
  • the evaporating chamber 3 evaporates an evaporating liquid, for example, water, which is contained in the evaporating chamber 3 at a reduced pressure lower than the atmospheric pressure.
  • the evaporating chamber 3 pumps water accumulated in the evaporating chamber 3 from the evaporating liquid outlet 6 via the pipe 8 by the circulation pump 7 and supplies a cooling source to the indirect heat exchanger 9 on the load side such as a cooling place. Is supplied to the evaporative liquid inlet 11 via the conduit 10 and is then circulated back into the evaporating chamber 3 so as to be ejected from the upper nozzle 12.
  • the condensing chamber 4 draws a cooling fluid, for example, water, stored in the condensing chamber 4 from the cooling fluid outlet 13 through the pipe 16 by the circulation pump 14 and supplies it to the indirect heat exchanger 15 on the heat radiation side to the atmosphere. It is cooled by heat dissipation.
  • the condensation chamber 4 circulates by supplying the water cooled by the indirect heat exchanger 15 to the cooling liquid inlet 18 via the pipe line 17 and returning it to the condensation chamber 4 so as to be ejected from the nozzle 19 at the upper part thereof. Is configured to do.
  • a root type compressor is provided as the steam compressor 23 to be fed into the tank.
  • steam can be compressed by about 10 ° C. due to a temperature difference.
  • the steam compressor 23 is not limited to a Roots type compressor, and a blower compressor, a screw type compressor, and other compressors can be used.
  • the inside of the evaporating chamber 3 and the inside of the condensing chamber 4 are kept at a reduced pressure lower than the atmospheric pressure by a vacuum pump 25 connected to the vacuum exhaust port 24 of the condensing chamber 4. It is comprised so that boiling evaporation may be performed.
  • connection port 30 at the bottom of the evaporation chamber 3 and the connection port 31 at the bottom of the condenser 4 are connected by a communication pipe 26, and a part of the water in the condensation chamber 4 is passed through the communication pipe 26. 3 is supplied.
  • the evaporation chamber 3 and the condensation chamber 4 are doubled by the two partition plates 2a and 2b provided in the center of the container 1.
  • the space 5 for heat insulation between the partition plates 2a and 2b is made to have the same pressure as the evaporation chamber 3 by the pressure guiding pipe 27 that connects the connection port 29 corresponding to the space 5 and the connection port 28 of the evaporation chamber 3. .
  • the partition plate 2b on the evaporation chamber 3 side of the partition plates 2a and 2b is not subjected to stress due to the differential pressure, and a thinner partition plate can be used than the partition plate 2a on the condensation chamber 4 side. it can.
  • FIG. 2 is a perspective view of the container 1 of FIG. 1
  • FIG. 3 is a side view thereof
  • FIG. 4 is a cross-sectional view taken along the line AA of FIG. 3.
  • FIG. Corresponding parts bear the same reference symbols.
  • the container 1 is made of stainless steel, for example, and includes a cylindrical container body 1a, a front plate 1b that closes the opening at the front end, and a rear plate 1c that closes the opening at the rear end.
  • the front plate 1b and the rear plate 1c close the space 5 between the evaporation chamber 3, the condensation chamber 4, and the partition plates 2a and 2b, respectively.
  • the material constituting the container 1 is not limited to a metal such as stainless steel but may be a hard synthetic resin.
  • the container main body 1a is disposed sideways by four mounting legs 51 so that its axis 50 is horizontal.
  • two flat plate-like partition plates 2a and 2b extending in the direction of the axis 50 of the container body 1a are arranged in the diameter direction so as to bisect the circular cross section of the container body 1a.
  • the evaporating chamber 3 and the condensing chamber 4 are partitioned and formed in a semicylindrical shape.
  • the vapor outlet 20 is provided at the upper part of the main body on the evaporation chamber 3 side, while the vapor inlet 21 is provided at the upper part of the main body on the condensation chamber 4 side.
  • the front plate 1b on the evaporation chamber 3 side is provided with a connection port 28 to which one end of the pressure guiding tube 27 is connected, while the upper portion of the main body corresponding to the heat insulating space 5 sandwiched between the two partition plates 2a and 2b. Is provided with a connection port 29 to which the other end of the pressure guiding tube 27 is connected.
  • the evaporative liquid inlet 11 is provided at three locations on the main body side on the evaporation chamber 3 side, while the cooling fluid inlet 18 is provided at three locations on the main body side on the condensation chamber 4 side.
  • an evaporative liquid outlet 6 is provided near the front surface of the lower part of the main body on the evaporation chamber 3 side, while a cooling liquid outlet 13 is provided near the rear surface of the lower part of the main body on the condensing chamber 4 side.
  • a connection port 30 to which one end of the communication pipe 26 is connected is provided on the front side of the lower part of the main body on the evaporation chamber 3 side, while the connection pipe 26 is provided on the front side of the lower part of the main body on the condensing chamber 4 side.
  • a connection port 31 to which the end is connected is provided.
  • a drain pipe (not shown) is provided at the bottom of the heat insulating space 5 sandwiched between the two partition plates 2a and 2b, and in the unlikely event that refrigerant is mixed into the space 5. Can discharge the refrigerant.
  • Exhaust ports 32 and 24 for vacuum exhaust are respectively provided on the evaporation chamber 3 side and the condensation chamber 4 side of the front plate 1b.
  • a mounting seat (not shown) for mounting the vapor compressor 23 and a motor for driving the vapor compressor 23 is provided on the upper portion of the container main body 1a.
  • the installation space is reduced.
  • the above-described system shown in FIG. 1 is configured using the container 1 having such a configuration.
  • the water that has been cooled by boiling and evaporating in the evaporation chamber 3 under reduced pressure is sent to the load side by the circulation pump 7 via the pipe 8 and indirectly.
  • the water which has been subjected to heat exchange in the heat exchanger 9 and used for cooling or the like and whose temperature has risen on the load side returns to the evaporation chamber 3 again via the pipe line 10, and is cooled by boiling and evaporating again here. The temperature is lowered.
  • the vapor generated by boiling evaporation in the evaporation chamber 3 is sucked and compressed by the vapor compressor 23 to reach the condensation chamber 4 and condensed by cooling in the condensation chamber 4.
  • a part of the pressure is supplied to the evaporation chamber 3 through the communication pipe 26 due to a pressure difference.
  • the water condensed and liquefied by releasing heat in the condensing chamber 4 is sent to the heat radiation side by the circulation pump 14 via the pipe line 16 and cooled by heat radiation to the atmosphere in the indirect heat exchanger 15, The circulation of returning to the condensation chamber 4 through the pipe line 17 is repeated.
  • the evaporation chamber 3 and the condensation chamber 4 are partitioned by dividing the inside of a single container 1 by two partition plates 2a and 2b.
  • the overall size can be reduced to reduce the installation space and cost.
  • the space between the evaporation chamber 3 and the condensing chamber 4 is double partitioned with the space 5 for heat insulation interposed, heat transfer from the condensing chamber 4 to the evaporation chamber 3 is interrupted to prevent a decrease in thermal efficiency. be able to.
  • the space 5 for heat insulation is not connected to the evaporation chamber 3 or the condensing chamber 4 by the pressure guiding tube to be the same pressure as the evaporation chamber 3 or the condensing chamber 4. 5 may simply be in a reduced pressure state.
  • the space 5 for heat insulation is sealed at atmospheric pressure, after the operation of the evaporative cooling device is started, the space 5 and the decompressed evaporation chamber 3 and the decompressed condensing chamber 4 on both sides thereof are separated. Since the differential pressure between them becomes large, the partition plates 2a and 2b need to be thick so that they can withstand the differential pressure. A pressure can be made small and the partition plates 2a and 2b can be made thin.
  • the space 5 may be sealed in a reduced pressure state at the manufacturing stage, or the space 5 may be directly connected via a pipe 55 as shown in FIG.
  • the pressure may be reduced by connecting to the vacuum pump 25. Further, the pressure may be reduced by connecting to a vacuum pump different from the vacuum pump 25.
  • the cylindrical container 1 is arranged in the horizontal direction.
  • the cylindrical container 1 may be arranged in the vertical direction.
  • the circular cross section of the cylindrical container body 1a is divided into two, and the evaporation chamber 3 and the condensation chamber 4 are partitioned and formed in a semi-cylindrical shape.
  • FIG. The evaporation chamber and the condensation chamber may be partitioned and formed in a cylindrical shape by partitioning so as to be orthogonal to the axis 50 of the cylindrical container body 1a shown in FIG.
  • cylindrical double partition members 37a and 37b are concentrically housed inside a cylindrical container 36
  • the inside of the inner partition member 37b is the inner container 36a
  • the outer partition member 37a A section between the outer periphery and the inner periphery of the container 36 may be formed as an annular outer container 36b.
  • one of the inner container 36 a and the outer container 36 b may be the evaporation chamber 3 and the other may be the condensation chamber 4.
  • a heat insulating space 38 is interposed between the double partition members 37a and 37b.
  • This space 38 is preferably set to the same pressure as either the evaporation chamber 3 or the condensation chamber 4.
  • both ends of the container 36 and the partition members 37a and 37b are closed with a lid, and the lid is provided with a necessary vapor or liquid inlet / outlet corresponding to the evaporation chamber 3 and the condensation chamber 4.
  • the inner vessel 36 a is used as the evaporation chamber 3 and the outer vessel 36 b is used as the condensation chamber 4 in order to reduce the thermal influence that the evaporation chamber 3 receives from the atmosphere. Is preferable.
  • the inner container 36 a and the outer container 36 b are arranged concentrically, but may be eccentric as another embodiment.
  • water is used as the evaporating liquid, but the present invention is not limited to water, and alcohol or other evaporating liquids may be used.
  • the present invention is particularly useful as a steam compression refrigerator.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

La présente invention se rapporte à un dispositif de refroidissement par évaporation pourvu d’une chambre d’évaporation dans laquelle un liquide d’évaporation est porté à ébullition et s’évapore grâce à la réduction de la pression à une pression inférieure à la pression atmosphérique, d’un compresseur de vapeur qui comprime la vapeur produire dans la chambre d’évaporation, et d’une chambre de condensation dans laquelle la vapeur comprimée par le compresseur de vapeur est condensée. Un unique contenant est divisé par deux plaques de séparation en deux chambres, c’est-à-dire la chambre d’évaporation et la chambre de condensation, et un espace est créé entre les plaques de séparation.
PCT/JP2010/004387 2009-08-28 2010-07-05 Dispositif de refroidissement par évaporation WO2011024371A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010800037913A CN102265101A (zh) 2009-08-28 2010-07-05 蒸发式冷却装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009198304A JP5483959B2 (ja) 2009-08-28 2009-08-28 蒸発式冷却装置
JP2009-198304 2009-08-28

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WO2011024371A1 true WO2011024371A1 (fr) 2011-03-03

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CN (1) CN102265101A (fr)
WO (1) WO2011024371A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5765862B2 (ja) * 2013-08-30 2015-08-19 株式会社アンレット 低圧蒸気の再利用装置
FR3069624B1 (fr) * 2017-07-28 2019-10-18 Alpinov X Installation frigorifique
TWI757508B (zh) * 2017-08-02 2022-03-11 日商笹倉機械工程股份有限公司 造水裝置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241627Y2 (fr) * 1973-05-09 1977-09-20
JP2003042597A (ja) * 2001-07-27 2003-02-13 Denso Corp 一体型熱交換器
JP2003112797A (ja) * 2001-10-05 2003-04-18 Sapporo Breweries Ltd 飲料冷却供給装置
JP2003156267A (ja) * 2001-11-16 2003-05-30 Daikin Ind Ltd セパレート型空気調和機およびこれに用いる断熱二重管
WO2004069370A1 (fr) * 2003-02-10 2004-08-19 Sato, Chisato Dispositif d'etancheite, dispositif d'etancheite/decompression, dispositif d'evaporation utilisant le dispositif d'etancheite, dispositif de condensation, dispositif d'elimination de gaz non condense, dispositif d'evaporation/condensation, dispositif de separation de source d'energie thermique, dispositif de production d'ea
JP2004293872A (ja) * 2003-03-26 2004-10-21 Tokyo Electric Power Co Inc:The ヒートポンプ及び熱利用装置
JP2005003363A (ja) * 2004-09-17 2005-01-06 Matsushita Electric Ind Co Ltd ヒートポンプ給湯装置
WO2008096614A1 (fr) * 2007-02-08 2008-08-14 Sasakura Engineering Co., Ltd. Refroidisseur par évaporation pour refroidir un liquide volatil

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB974935A (en) * 1960-09-02 1964-11-11 American Radiator & Standard Refrigeration machine
JP4454456B2 (ja) * 2004-09-30 2010-04-21 三建設備工業株式会社 水蒸気圧縮冷凍機の冷凍システム

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241627Y2 (fr) * 1973-05-09 1977-09-20
JP2003042597A (ja) * 2001-07-27 2003-02-13 Denso Corp 一体型熱交換器
JP2003112797A (ja) * 2001-10-05 2003-04-18 Sapporo Breweries Ltd 飲料冷却供給装置
JP2003156267A (ja) * 2001-11-16 2003-05-30 Daikin Ind Ltd セパレート型空気調和機およびこれに用いる断熱二重管
WO2004069370A1 (fr) * 2003-02-10 2004-08-19 Sato, Chisato Dispositif d'etancheite, dispositif d'etancheite/decompression, dispositif d'evaporation utilisant le dispositif d'etancheite, dispositif de condensation, dispositif d'elimination de gaz non condense, dispositif d'evaporation/condensation, dispositif de separation de source d'energie thermique, dispositif de production d'ea
JP2004293872A (ja) * 2003-03-26 2004-10-21 Tokyo Electric Power Co Inc:The ヒートポンプ及び熱利用装置
JP2005003363A (ja) * 2004-09-17 2005-01-06 Matsushita Electric Ind Co Ltd ヒートポンプ給湯装置
WO2008096614A1 (fr) * 2007-02-08 2008-08-14 Sasakura Engineering Co., Ltd. Refroidisseur par évaporation pour refroidir un liquide volatil

Also Published As

Publication number Publication date
CN102265101A (zh) 2011-11-30
JP2011047618A (ja) 2011-03-10
JP5483959B2 (ja) 2014-05-07

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