WO2010082535A1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
WO2010082535A1
WO2010082535A1 PCT/JP2010/050153 JP2010050153W WO2010082535A1 WO 2010082535 A1 WO2010082535 A1 WO 2010082535A1 JP 2010050153 W JP2010050153 W JP 2010050153W WO 2010082535 A1 WO2010082535 A1 WO 2010082535A1
Authority
WO
WIPO (PCT)
Prior art keywords
refrigerant
overflow pipe
heat exchanger
liquid receiver
partition member
Prior art date
Application number
PCT/JP2010/050153
Other languages
English (en)
Japanese (ja)
Inventor
日出雄 大橋
Original Assignee
昭和電工株式会社
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 昭和電工株式会社 filed Critical 昭和電工株式会社
Publication of WO2010082535A1 publication Critical patent/WO2010082535A1/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
    • F25B39/04—Condensers
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0441—Condensers with an integrated receiver containing a drier or a filter
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0442—Condensers with an integrated receiver characterised by the mechanical fixation of the receiver to the header
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/02—Subcoolers

Definitions

  • the present invention relates to a heat exchanger used for a refrigeration cycle constituting a car air conditioner, for example.
  • an interval between each other can be improved for the purpose of improving assembling to a vehicle body, saving installation space, and improving the refrigeration capacity of a refrigeration cycle.
  • the tank is divided into two headers in the length direction of the tank, and a condensing part having a function as a condenser is provided above the both partition walls and below the both partition walls.
  • a condensing part having a function as a condenser is provided above the both partition walls and below the both partition walls.
  • a heat exchanger in which a refrigerant outlet that sends out a refrigerant to the header of the section is formed such that the former is positioned above (see Patent Document 1).
  • An object of the present invention is to provide a heat exchanger that can solve the above problems and improve the gas-liquid separation effect.
  • the present invention comprises the following aspects in order to achieve the above object.
  • a pair of tanks that are vertically spaced apart from each other, and a plurality of heats that are arranged in parallel with a space between both tanks in the vertical direction and both ends are connected to both tanks. It has an exchange pipe and a cylindrical liquid receiver that is attached to one of the tanks and extends in the vertical direction.
  • the liquid receiver has a refrigerant inlet and a refrigerant outlet so that the former is positioned above.
  • a partition member for vertically dividing the interior of the liquid receiver is disposed at a height position between the refrigerant inlet and the refrigerant outlet in the liquid receiver, and the partition member is located above the partition member in the liquid receiver.
  • a refrigerant passage hole is formed in the partition member, an overflow pipe is provided in a protruding manner around the refrigerant passage hole on the upper surface of the partition member, and the upper end of the overflow pipe is positioned above the refrigerant inlet.
  • the heat exchanger as described in 1) above.
  • a desiccant container is disposed above the overflow pipe in the liquid receiver, and a receiving member for receiving the desiccant container is provided at the upper end of the overflow pipe so as not to close the upper end opening of the overflow pipe.
  • the heat exchanger as described in 2) above.
  • the first tank to which the liquid receiver is attached is partitioned into two headers in the length direction of the first tank by the first partition wall, and the other second tank is also partitioned by the second partition wall.
  • both partition walls Condensed into two headers in the length direction of the second tank, both partition walls are in the same position with respect to the length direction of both tanks, and functions as a condenser in the upper part of both partition walls
  • a supercooling part having a function as a supercooler is provided in the lower part of both partition walls, and the refrigerant flowing out from the first tank side header of the condensing part passes through the refrigerant inlet.
  • the heat exchanger as described in 2) above, wherein the refrigerant entering the liquid receiver and flowing out from the refrigerant outlet of the liquid receiver flows into the header on the first tank side of the supercooling section.
  • a partition member that divides the liquid receiver vertically is disposed at a height position between the refrigerant inlet and the refrigerant outlet in the receiver. Since the partition member is provided with an overflow pipe that allows the refrigerant to flow to the compartment below the partition member after the liquid level of the refrigerant in the compartment above the partition member in the liquid receiver reaches the specified liquid level.
  • the refrigerant that has flowed into the liquid receiver from the refrigerant inflow port accumulates until reaching the specified liquid level in the section above the partition member, and then flows through the overflow pipe to the section below the partition member. Therefore, the gas-liquid separation effect is improved and the performance deterioration of the refrigeration cycle using this heat exchanger is prevented.
  • the heat exchanger according to the present invention is applied to a heat exchanger in which a condensing part having a condenser function and a supercooling part having a supercooler function are integrated.
  • the left and right sides in FIG. 1 are referred to as left and right, the front side of FIG. 1 is the front side, and the opposite side is the back side.
  • the term “aluminum” includes aluminum alloys in addition to pure aluminum.
  • FIG. 1 shows the overall configuration of the heat exchanger
  • FIG. 2 shows the configuration of the main part thereof.
  • the heat exchanger (1) has a width between a pair of left and right aluminum tanks (2) and (3) extending in the vertical direction and spaced apart from each other, and both tanks (2) and (3).
  • a plurality of flat aluminum heat exchange tubes (4) with their directions directed in the front-rear direction and arranged in parallel at intervals in the vertical direction, and both left and right ends connected to both tanks (2) (3), respectively
  • an aluminum corrugated fin (5) brazed to the heat exchange pipe (4) between the adjacent heat exchange pipes (4) and outside the heat exchange pipes (4) at both upper and lower ends
  • Both tanks (2) and (3) of the heat exchanger (1) are partitioned vertically by partition walls (8) and (9) at the same height at the bottom, thereby condensing the gas-phase refrigerant.
  • the supercooling section (13) having the above are integrally provided side by side in the same vertical plane so that the former is positioned above.
  • the part above the partition wall (8) in the left tank (2) is the left header (14) of the condensing part (12), and the part above the partition wall (9) in the right tank (3) Is the right header (15) of the condenser (12).
  • the part below the partition wall (8) in the left tank (2) is the left header (16) of the supercooling section (13), and the part below the partition wall (9) in the right tank (3) Is the right header (17) of the supercooling section (13).
  • the right header (15) of the condensing part (12) is divided into an upper header part (15a) and a lower header by an aluminum first partition plate (18) for forming a passage group provided at a middle height position in the vertical direction.
  • the left header (14) is divided by an aluminum second partition plate (19) for passage group formation provided at a lower position than the first partition plate (18).
  • the upper header portion (14a) and the lower header portion (14b) are partitioned.
  • the condensing part (12) is divided into a part above the first partition plate (18), a part between the partition plates (18) and (19), and a part below the second partition plate (19), respectively.
  • a passage group (21), (22), (23) is provided which is composed of heat exchange pipes (4) arranged continuously in the vertical direction.
  • the number of heat exchange pipes (4) constituting each of the passage groups (21), (22), and (23) decreases sequentially from the top. Further, the flow direction of the refrigerant in all the heat exchange pipes (4) constituting each passage group (21), (22), and (23) is the same, and two adjacent passage groups (21) (22) And the flow directions of the refrigerant in the heat exchange pipe (4) of (22) and (23) are different.
  • An aluminum refrigerant inlet member (24) leading to a refrigerant inlet (not shown) is joined to the upper end portion of the upper header portion (15a) of the right header (15) of the condensing portion (12), and the right side of the supercooling portion (13)
  • An aluminum refrigerant outlet member (25) leading to a refrigerant outlet (not shown) is joined to the header (17).
  • the receiver (7) has an aluminum base member (26) fixed to the lower part of the left tank (2) by brazing or the like, and an upper end closed and a lower end
  • a bag-shaped desiccant container (30) which is formed of an aluminum receiver body (27) which is cylindrical with an opening and is detachably attached to the base member (26), and which stores the desiccant therein. Is put.
  • the base member (26) is formed with two fixing portions (28) and (29) spaced apart in the vertical direction, and the upper fixing portion (28) of the condensing portion (12) in the left tank (2). It is fixed to the lower header part (14b) of the left header (14) by brazing or the like, and the lower fixing part (29) is also fixed to the left header (16) of the supercooling part (13) by brazing or the like. .
  • the base member (26) has a cylindrical shape with the lower end closed and the upper end opened, and the refrigerant inlet (31) and the refrigerant outlet (32) are positioned on the peripheral wall so that the former is located above. Is formed.
  • the refrigerant inlet (31) is a refrigerant formed in the lower header part (14b) of the left header (14) of the condensing part (12) via the refrigerant inflow path (33) formed in the upper fixed part (28).
  • the refrigerant outlet (32) is communicated with the outlet (34), and the refrigerant outlet (32) is connected to the left header (16) of the supercooling part (13) via the refrigerant outflow path (35) formed in the lower fixing part (29). It is made to communicate with the formed refrigerant inlet (36).
  • a male screw (37) is formed on the outer peripheral surface of the upper end portion of the base member (26).
  • a female screw (38) is formed that is screwed onto the male screw (37) of the base member (26), and the lower end of the receiver body (27).
  • the upper part of the base member (26) is screwed onto the base member (26), so that the receiver body (27) is attached to the base member (26), and the lower end opening of the receiver body (27) is Closed by.
  • the space between the portion below the male screw (37) on the outer peripheral surface of the base member (26) and the portion below the female screw (38) on the inner peripheral surface of the receiver body (27) is O. Sealed by a ring (39).
  • the partition member (41) is arranged, and thereby the first compartment (42) in which the refrigerant inlet (31) above the partition member (41) faces in the liquid receiver (7), and the partition member A second section (43) facing the refrigerant outlet (32) below (41) is provided.
  • the partition member (41) has an overflow pipe (44) through which the refrigerant flows into the second compartment (43) after the liquid level of the refrigerant in the first compartment (42) of the liquid receiver (7) reaches the specified liquid level. Is provided.
  • the refrigerant passage hole (45) is formed in the partition member (41) in a penetrating manner, and an overflow pipe having a predetermined length is formed in a portion around the refrigerant passage hole (45) on the upper surface of the partition member (41) 44) is provided to project upward.
  • the upper end of the overflow pipe (44) is located above the refrigerant inlet (31).
  • a filter holding member (46) having a bottomed cylindrical shape protruding downward and a plurality of openings (46a) formed in a peripheral wall at a portion around the refrigerant passage hole (45) on the lower surface of the partition member (41)
  • a bottomed cylindrical filter (47) whose upper end is open and whose lower end is closed is held by the filter holding member (46).
  • the heat exchanger (1) constitutes a refrigeration cycle together with a compressor, an expansion valve (decompressor) and an evaporator, and is mounted on a vehicle as a car air conditioner.
  • the high-temperature and high-pressure gas-liquid mixed phase refrigerant compressed by the compressor passes through the inlet member (24) from the refrigerant inlet (not shown) to the condenser (12). It flows into the upper header portion (15a) of the right header (15).
  • the gas-liquid mixed phase refrigerant that has flowed into the upper header portion (15a) of the right header (15) passes through the heat exchange pipe (4) of the upper end passage group (21), and the upper header portion (14a) of the left header (14).
  • the gas-liquid mixed phase refrigerant that has flowed into the lower header portion (14b) of the left header (14) of the condensing portion (12) is sent out from the refrigerant outlet (34) and is fixed to the upper fixed portion (28) of the base member (26).
  • the refrigerant flows through the refrigerant inflow passage (33) and flows into the first compartment (42) in the liquid receiver (7) from the refrigerant inlet (31).
  • the gas-liquid mixed phase refrigerant flows into the first compartment (42) in the receiver (7), the moisture is removed by the desiccant in the desiccant container (30).
  • the liquid-phase refrigerant flowing into the second section (43) passes from the refrigerant outlet (32) through the refrigerant outlet (35) of the lower fixing portion (29) of the base member (26) to the refrigerant inlet (36 ) Flows into the left header (16) of the supercooling section (13).
  • the refrigerant flowing into the left header (16) of the supercooling section (13) flows into the right header (17) through the heat exchange pipe (4), and passes through the refrigerant outlet member (25) from the refrigerant outlet (not shown). It is sent to the evaporator through the expansion valve.
  • a plurality of notches (51) extending downward from the upper end are formed on the peripheral wall at intervals in the circumferential direction.
  • the lower end of the notch (51) is preferably positioned above the refrigerant inlet (31).
  • the desiccant container (30) disposed in the upper part of the overflow pipe (50) in the liquid receiver (7) moves downward due to gravity, and the overflow pipe (50 ),
  • the liquid-phase refrigerant in the first compartment (42) flows into the overflow pipe (50) through the notch (51), passes through the overflow pipe (50), and the partition member ( It flows to the second section (43) below 41). Therefore, the flow of the liquid refrigerant flowing from the refrigerant inlet (31) into the first compartment (42) in the receiver (7) into the second compartment (43) is not hindered.
  • a receiving member (56) for receiving the desiccant container (30) is formed at the upper end of the peripheral wall so as to project upward so as not to close the upper end opening of the overflow pipe (55). Is provided.
  • the receiving member (56) for receiving the desiccant container (30) is radially formed on the upper end surface of the peripheral wall of the overflow pipe (55) so as to protrude radially outward from the overflow pipe (55).
  • a plurality of vertical plate bodies (57) provided integrally therewith. Note that the upper end of the overflow pipe (55) is located above the refrigerant inlet (31).
  • this overflow pipe (55) when the desiccant container (30) disposed in the upper part of the overflow pipe (55) in the liquid receiver (7) moves downward due to gravity, the receiving member ( 56), the upper end opening of the overflow pipe (55) is not blocked. Therefore, the liquid-phase refrigerant that has flowed from the refrigerant inlet (31) into the first compartment (42) in the liquid receiver (7) flows into the second compartment (43) through the overflow pipe (55). Not disturbed.
  • a receiving member (61) for receiving the desiccant container (30) is formed at the upper end of the peripheral wall so as to project upward so as not to close the upper end opening of the overflow pipe (60). Is provided.
  • the receiving member (61) for receiving the desiccant container (30) is radially formed on the upper end surface of the peripheral wall of the overflow pipe (60) so as to protrude radially outward of the overflow pipe (60) at intervals in the circumferential direction.
  • a plurality of vertical plate bodies (62) provided integrally therewith.
  • the upper part of the vertical plate (62) protrudes radially inward of the overflow pipe (60) and is integrally connected on the center line of the overflow pipe (60).
  • a projecting portion inward in the radial direction of the overflow pipe (60) in the vertical plate (62) is indicated by (62a).
  • the upper end of the overflow pipe (60) is located above the refrigerant inlet (31).
  • this overflow pipe (60) when the desiccant container (30) disposed in the upper part of the liquid receiver (7) above the overflow pipe (60) moves downward due to gravity, the receiving member ( 61), the upper end opening of the overflow pipe (60) is not blocked. Therefore, the liquid-phase refrigerant that has flowed from the refrigerant inlet (31) into the first compartment (42) in the receiver (7) may flow into the second compartment (43) through the overflow pipe (60). Not disturbed.
  • the heat exchanger according to the present invention is suitably used for a refrigeration cycle constituting a car air conditioner.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

Un échangeur de chaleur (1) est pourvu de deux cuves (2) placées de manière à être espacées l'une de l'autre et s'étendant dans la direction verticale, de tuyaux d'échange de chaleur (4) placés les uns à côté des autres entre les deux cuves (2) de manière à être espacés les uns des autres dans la direction verticale, et d'un récepteur de liquide tubulaire s'étendant verticalement (7) monté sur l'une ou l'autre des cuves (2). Une arrivée de fluide frigorigène (31) et une sortie de fluide frigorigène (32) sont disposées sur le récepteur de liquide (7) de manière à être espacées l'une de l'autre dans la direction verticale, l'arrivée de fluide frigorigène (31) se situant au-dessus de la sortie de fluide frigorigène (32). Un élément de séparation (41) servant à séparer l'intérieur du récepteur de liquide (7) en segments supérieur et inférieur est disposé dans le récepteur de liquide (7) à une hauteur située entre l'arrivée de fluide frigorigène (31) et la sortie de fluide frigorigène (32). Un tube de trop-plein (44) est disposé sur l'élément de séparation (41), et le tube de trop-plein (44) permet, lorsque le niveau du fluide frigorigène dans le segment (42) au-dessus de l'élément de séparation (41) dans le récepteur de liquide (7) atteint un niveau spécifié, au fluide frigorigène de s'écouler jusqu'au segment (43) sous l'élément de séparation (41). L'échangeur de chaleur (1) présente un effet de séparation gaz-liquide amélioré.
PCT/JP2010/050153 2009-01-13 2010-01-08 Echangeur de chaleur WO2010082535A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2009-004484 2009-01-13
JP2009004484 2009-01-13
JP2009163306A JP5412195B2 (ja) 2009-01-13 2009-07-10 熱交換器
JP2009-163306 2009-07-10

Publications (1)

Publication Number Publication Date
WO2010082535A1 true WO2010082535A1 (fr) 2010-07-22

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PCT/JP2010/050153 WO2010082535A1 (fr) 2009-01-13 2010-01-08 Echangeur de chaleur

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JP (1) JP5412195B2 (fr)
WO (1) WO2010082535A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015114000A (ja) * 2013-12-09 2015-06-22 株式会社デンソー 受液器の乾燥剤収納袋
JP2016057021A (ja) * 2014-09-11 2016-04-21 株式会社ケーヒン・サーマル・テクノロジー コンデンサ
JP7421446B2 (ja) 2020-08-20 2024-01-24 日軽金Ａｌｍｏ株式会社 熱交換器用レシーバタンク

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5639875B2 (ja) * 2010-12-24 2014-12-10 株式会社ケーヒン・サーマル・テクノロジー 中間熱交換器
JP5594170B2 (ja) * 2011-02-02 2014-09-24 株式会社デンソー 冷媒用除水装置
JP2018100818A (ja) * 2016-12-22 2018-06-28 株式会社デンソー 冷媒容器
JP6905895B2 (ja) * 2017-08-28 2021-07-21 マーレベーアサーマルシステムズジャパン株式会社 コンデンサ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07269992A (ja) * 1994-03-31 1995-10-20 Zexel Corp ヒートポンプシステム用レシーバタンク
JPH09126599A (ja) * 1995-10-30 1997-05-16 Hitachi Ltd 冷凍サイクル
JP2000213826A (ja) * 1999-01-22 2000-08-02 Denso Corp 受液器一体型冷媒凝縮器
JP2003090643A (ja) * 2001-09-18 2003-03-28 Denso Corp 冷凍サイクル装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07269992A (ja) * 1994-03-31 1995-10-20 Zexel Corp ヒートポンプシステム用レシーバタンク
JPH09126599A (ja) * 1995-10-30 1997-05-16 Hitachi Ltd 冷凍サイクル
JP2000213826A (ja) * 1999-01-22 2000-08-02 Denso Corp 受液器一体型冷媒凝縮器
JP2003090643A (ja) * 2001-09-18 2003-03-28 Denso Corp 冷凍サイクル装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015114000A (ja) * 2013-12-09 2015-06-22 株式会社デンソー 受液器の乾燥剤収納袋
JP2016057021A (ja) * 2014-09-11 2016-04-21 株式会社ケーヒン・サーマル・テクノロジー コンデンサ
JP7421446B2 (ja) 2020-08-20 2024-01-24 日軽金Ａｌｍｏ株式会社 熱交換器用レシーバタンク

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JP5412195B2 (ja) 2014-02-12

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