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US20080314575A1 - Parallel flow evaporator - Google Patents

Parallel flow evaporator Download PDF

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Publication number
US20080314575A1
US20080314575A1 US11/854,913 US85491307A US2008314575A1 US 20080314575 A1 US20080314575 A1 US 20080314575A1 US 85491307 A US85491307 A US 85491307A US 2008314575 A1 US2008314575 A1 US 2008314575A1
Authority
US
United States
Prior art keywords
liquid inlet
inlet manifold
manifold
gas outlet
plate
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.)
Abandoned
Application number
US11/854,913
Inventor
Zongde Dong
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.)
SHANGHAI SHUANGHUA AUTO PARTS CO Ltd
Original Assignee
Shanghai Shuanghua Automobile Air Conditioner Parts Co Ltd
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 Shanghai Shuanghua Automobile Air Conditioner Parts Co Ltd filed Critical Shanghai Shuanghua Automobile Air Conditioner Parts Co Ltd
Assigned to SHANGHAI SHUANGHUA AUTOMOBILE AIR CONDITIONER PARTS CO., LTD. reassignment SHANGHAI SHUANGHUA AUTOMOBILE AIR CONDITIONER PARTS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DONG, ZONGDE
Assigned to SHANGHAI SHUANGHUA AUTO PARTS CO., LTD. reassignment SHANGHAI SHUANGHUA AUTO PARTS CO., LTD. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: SHANGHAI SHUANGHUA AUTOMOBILE AIR CONDITIONER PARTS CO., LTD.
Publication of US20080314575A1 publication Critical patent/US20080314575A1/en
Abandoned legal-status Critical Current

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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
    • F25B39/02—Evaporators
    • F25B39/022—Evaporators with plate-like or laminated elements
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • 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

Definitions

  • This invention relates to the field of mechanics, especially to a heat exchange machinery, more especially to a heat exchanger, particularly a parallel evaporator, which is used in an air conditioner of an automobile.
  • a heat exchanger used in an air conditioner of an automobile is consisted of a plurality of evaporators connected in series. This results in that the air conditioner is bulky and heavy, which increases the load of the automobile. Furthermore, the efficiency of the heat exchange is low and it is hard to save energy.
  • An object of the present invention is to provide a parallel flow evaporator, which can overcome the deficiencies of the prior art automobile air conditioner that the efficiency of heat exchange is low and it is hard to save energy.
  • the parallel flow evaporator of the present invention comprises a transitional plate, wherein a left side plate is secured vertically to a left side edge of said transitional plate, a right side plate is secured vertically to a right side edge of said transitional plate, a first liquid inlet manifold is secured to an upper side edge of a forward side surface of said transitional plate, a first gas outlet manifold is secured to an upper side edge of a rearward side surface of said transitional plate, a second liquid inlet manifold is secured to a lower side edge of the forward side surface of said transitional plate, and a second gas outlet manifold is secured to a lower side edge of the rearward side surface of said transitional plate; said first liquid inlet manifold, said first gas outlet manifold, said second liquid inlet manifold and said second gas outlet manifold are parallel with each other; a plurality of flat tubes, which are parallel with and distant from each other, are arranged between said first liquid inlet manifold and said second liquid inlet manifold;
  • both of said coolant inlet and said coolant outlet are provided on a pressing plate, and said pressing plate is connected with the left side plate.
  • each of the first liquid inlet manifold, the first gas outlet manifold, the second liquid inlet manifold and the second gas outlet manifold is U-shaped in cross-section.
  • the principle of the present invention is as follows: liquid coolant enters the second liquid inlet manifold through the coolant inlet, then flows through the flat tubes to effect heat exchange, and thus turns into gas coolant; after flowing through the first liquid inlet manifold and the first gas outlet manifold, the gas coolant enters the second gas outlet manifold and is discharged through the coolant outlet.
  • the flat tubes facilitate efficient heat exchange of the coolant with the environment, and the fins between the flat tubes increase the area of heat transfer, so that the heat exchange efficiency is improved. With the cross sections of the liquid inlet manifolds and the gas outlet manifolds being U-shaped, the flow resistance is reduced.
  • the effects of the present invention are positive and obvious.
  • flat tubes and fins are provided in the parallel flow evaporator, and the liquid inlet manifolds and the gas outlet manifolds are designed as U-tubes, so the heat exchange efficiency of the parallel flow evaporator is improved.
  • FIG. 1 is a front schematic view of a parallel flow evaporator of the present invention
  • FIG. 2 is a bottom schematic view of a parallel flow evaporator of the present invention
  • FIG. 3 is a left schematic view of a parallel flow evaporator of the present invention.
  • the parallel flow evaporator of the present invention comprises a transitional plate 12 , wherein a left side plate 5 is secured vertically to a left side edge of said transitional plate 12 , a right side plate 6 is secured vertically to a right side edge of said transitional plate 12 , a first liquid inlet manifold 13 is secured to an upper side edge of a forward side surface of said transitional plate 12 , a first gas outlet manifold 14 is secured to an upper side edge of a rearward side surface of said transitional plate 12 , a second liquid inlet manifold 3 is secured to a lower side edge of the forward side surface of said transitional plate 12 , and a second gas outlet manifold 4 is secured to a lower side edge of the rearward side surface of said transitional plate 12 ; said first liquid inlet manifold 13 , said first gas outlet manifold 14 , said second liquid inlet manifold 3 and said second gas outlet manifold 4 are parallel with each other;
  • both of said coolant inlet 1 and said coolant outlet 2 are provided on a pressing plate 11 , and said pressing plate 11 is connected with the left side plate 5 .
  • a connecting plate 10 is provided between the pressing plate 11 and the left side plate 5 .
  • each of the first liquid inlet manifold 13 , the first gas outlet manifold 14 , the second liquid inlet manifold 3 and the second gas outlet manifold 4 is U-shaped in cross-section.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A parallel flow evaporator comprises a transitional plate. A left side plate and a right side plate are connected with two side edges of the transitional plate respectively. A first liquid inlet manifold is secured to an upper side edge of a forward side surface of said transitional plate, a first gas outlet manifold is secured to an upper side edge of a rearward side surface of said transitional plate, a second liquid inlet manifold is secured to a lower side edge of the forward side surface of said transitional plate, and a second gas outlet manifold is secured to a lower side edge of the rearward side surface of said transitional plate. A plurality of flat tubes, which are parallel with and distant from each other, are arranged between said first liquid inlet manifold and said second liquid inlet manifold. Said first liquid inlet manifold and said second liquid inlet manifold as well as said first gas outlet manifold and said second liquid inlet manifold communicate with said flat tubes. Between the flat tubes there are arranged a plurality of fins. A left end of the second liquid inlet manifold is connected with a coolant inlet and a left end of the second gas outlet manifold is connected with a coolant outlet. According to the present invention, flat tubes and fins are provided in the parallel flow evaporator, and the liquid inlet manifolds and the gas outlet manifolds are designed as U-tubes, so the heat exchange efficiency of the parallel flow evaporator is improved.

Description

    FIELD OF THE INVENTION
  • This invention relates to the field of mechanics, especially to a heat exchange machinery, more especially to a heat exchanger, particularly a parallel evaporator, which is used in an air conditioner of an automobile.
    • BACKGROUND OF THE INVENTION
  • In the prior art, a heat exchanger used in an air conditioner of an automobile is consisted of a plurality of evaporators connected in series. This results in that the air conditioner is bulky and heavy, which increases the load of the automobile. Furthermore, the efficiency of the heat exchange is low and it is hard to save energy.
    • SUMMARY OF THE INVENTION
  • An object of the present invention is to provide a parallel flow evaporator, which can overcome the deficiencies of the prior art automobile air conditioner that the efficiency of heat exchange is low and it is hard to save energy.
  • The parallel flow evaporator of the present invention comprises a transitional plate, wherein a left side plate is secured vertically to a left side edge of said transitional plate, a right side plate is secured vertically to a right side edge of said transitional plate, a first liquid inlet manifold is secured to an upper side edge of a forward side surface of said transitional plate, a first gas outlet manifold is secured to an upper side edge of a rearward side surface of said transitional plate, a second liquid inlet manifold is secured to a lower side edge of the forward side surface of said transitional plate, and a second gas outlet manifold is secured to a lower side edge of the rearward side surface of said transitional plate; said first liquid inlet manifold, said first gas outlet manifold, said second liquid inlet manifold and said second gas outlet manifold are parallel with each other; a plurality of flat tubes, which are parallel with and distant from each other, are arranged between said first liquid inlet manifold and said second liquid inlet manifold; said first liquid inlet manifold and said second liquid inlet manifold communicate with said flat tubes; said first gas outlet manifold and said second liquid inlet manifold communicate with said flat tubes; between the flat tubes there are arranged a plurality of fins; a left end of the second liquid inlet manifold is connected with a coolant inlet and a right end of the second liquid inlet manifold is closed; a left end of the second gas outlet manifold is connected with a coolant outlet and a right end of the second gas outlet manifold is closed; a first partition, a second partition, a third partition and a fourth partition are provided in the second liquid inlet manifold sequentially from right to left, the partitions being perpendicular to an axis of the second liquid inlet manifold and distant from each other; said first partition is provided with one through hole, said second partition is provided with two through holes, and said third partition is provided with three through holes.
  • Furthermore, both of said coolant inlet and said coolant outlet are provided on a pressing plate, and said pressing plate is connected with the left side plate.
  • Still furthermore, each of the first liquid inlet manifold, the first gas outlet manifold, the second liquid inlet manifold and the second gas outlet manifold is U-shaped in cross-section.
  • The principle of the present invention is as follows: liquid coolant enters the second liquid inlet manifold through the coolant inlet, then flows through the flat tubes to effect heat exchange, and thus turns into gas coolant; after flowing through the first liquid inlet manifold and the first gas outlet manifold, the gas coolant enters the second gas outlet manifold and is discharged through the coolant outlet. The flat tubes facilitate efficient heat exchange of the coolant with the environment, and the fins between the flat tubes increase the area of heat transfer, so that the heat exchange efficiency is improved. With the cross sections of the liquid inlet manifolds and the gas outlet manifolds being U-shaped, the flow resistance is reduced.
  • Compared with the prior art, the effects of the present invention are positive and obvious. According to the present invention, flat tubes and fins are provided in the parallel flow evaporator, and the liquid inlet manifolds and the gas outlet manifolds are designed as U-tubes, so the heat exchange efficiency of the parallel flow evaporator is improved.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a front schematic view of a parallel flow evaporator of the present invention;
  • FIG. 2 is a bottom schematic view of a parallel flow evaporator of the present invention;
  • FIG. 3 is a left schematic view of a parallel flow evaporator of the present invention.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • As shown in FIGS. 1, 2 and 3, the parallel flow evaporator of the present invention comprises a transitional plate 12, wherein a left side plate 5 is secured vertically to a left side edge of said transitional plate 12, a right side plate 6 is secured vertically to a right side edge of said transitional plate 12, a first liquid inlet manifold 13 is secured to an upper side edge of a forward side surface of said transitional plate 12, a first gas outlet manifold 14 is secured to an upper side edge of a rearward side surface of said transitional plate 12, a second liquid inlet manifold 3 is secured to a lower side edge of the forward side surface of said transitional plate 12, and a second gas outlet manifold 4 is secured to a lower side edge of the rearward side surface of said transitional plate 12; said first liquid inlet manifold 13, said first gas outlet manifold 14, said second liquid inlet manifold 3 and said second gas outlet manifold 4 are parallel with each other; a plurality of flat tubes 7, which are parallel with and distant from each other, are arranged between said first liquid inlet manifold 13 and said second liquid inlet manifold 3; said first liquid inlet manifold 13 and said second liquid inlet manifold 3 communicate with said flat tube 7; said first gas outlet manifold 14 and said second liquid inlet manifold 3 communicate with said flat tubes 7; between the flat tubes 7 there are arranged a plurality of fins 8; a left end of the second liquid inlet manifold 3 is connected with a coolant inlet 1 and a right end of the second liquid inlet manifold 3 is closed; a left end of the second gas outlet manifold 4 is connected with a coolant outlet 2 and a right end of the second gas outlet manifold 4 is closed; a first partition 15, a second partition 16, a third partition 17 and a fourth partition 9 are provided in the second liquid inlet manifold 3 sequentially from right to left, the partitions being perpendicular to an axis of the second liquid inlet manifold 3 and distant from each other; said first partition 15 is provided with one through hole, said second partition 16 is provided with two through holes, and said third partition 17 is provided with three through holes.
  • Furthermore, both of said coolant inlet 1 and said coolant outlet 2 are provided on a pressing plate 11, and said pressing plate 11 is connected with the left side plate 5. A connecting plate 10 is provided between the pressing plate 11 and the left side plate 5.
  • Still furthermore, each of the first liquid inlet manifold 13, the first gas outlet manifold 14, the second liquid inlet manifold 3 and the second gas outlet manifold 4 is U-shaped in cross-section.

Claims (3)

1. A parallel flow evaporator comprising a transitional plate, wherein a left side plate is secured vertically to a left side edge of said transitional plate, a right side plate is secured vertically to a right side edge of said transitional plate, a first liquid inlet manifold is secured to an upper side edge of a forward side surface of said transitional plate, a first gas outlet manifold is secured to an upper side edge of a rearward side surface of said transitional plate, a second liquid inlet manifold is secured to a lower side edge of the forward side surface of said transitional plate, and a second gas outlet manifold is secured to a lower side edge of the rearward side surface of said transitional plate; said first liquid inlet manifold, said first gas outlet manifold, said second liquid inlet manifold and said second gas outlet manifold are parallel with each other; a plurality of flat tubes, which are parallel with and distant from each other, are arranged between said first liquid inlet manifold and said second liquid inlet manifold; said first liquid inlet manifold and said second liquid inlet manifold communicate with said flat tube; said first gas outlet manifold and said second liquid inlet manifold communicate with said flat tubes; between the flat tubes there are arranged a plurality of fins; a left end of the second liquid inlet manifold is connected with a coolant inlet and a right end of the second liquid inlet manifold is closed; a left end of the second gas outlet manifold is connected with a coolant outlet and a right end of the second gas outlet manifold is closed; a first partition, a second partition, a third partition and a fourth partition are provided in the second liquid inlet manifold sequentially from right to left, the partitions being perpendicular to an axis of the second liquid inlet manifold and distant from each other; said first partition is provided with one through hole, said second partition is provided with two through holes, and said third partition is provided with three through holes.
2. The parallel flow evaporator according to claim 1, wherein both of said coolant inlet and said coolant outlet are provided on a pressing plate, and said pressing plate is connected with the left side plate.
3. The parallel flow evaporator according to claim 1, wherein each of the first liquid inlet manifold, the first gas outlet manifold, the second liquid inlet manifold and the second gas outlet manifold is U-shaped in cross-section.
US11/854,913 2007-06-19 2007-09-13 Parallel flow evaporator Abandoned US20080314575A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2007200712603U CN201059823Y (en) 2007-06-19 2007-06-19 Parallel flow evaporator
CN200720071260.3 2007-06-19

Publications (1)

Publication Number Publication Date
US20080314575A1 true US20080314575A1 (en) 2008-12-25

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CN (1) CN201059823Y (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102486345A (en) * 2010-12-01 2012-06-06 谭勇萍 Parallel flow evaporator of window type air-conditioner

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5284203A (en) * 1992-05-13 1994-02-08 Valeo Thermique Moteur Fluid header with an integral expansion chamber for a heat exchanger, in particular for a motor vehicle
US5582239A (en) * 1994-05-16 1996-12-10 Sanden Corporation Heat exchanger and method of making same
US6230787B1 (en) * 1998-11-09 2001-05-15 Calsonic Kansei Corporation Stack type evaporator
US6272881B1 (en) * 1998-04-03 2001-08-14 Denso Corporation Refrigerant evaporator and manufacturing method for the same
US20020079093A1 (en) * 2000-10-10 2002-06-27 Xiaoyang Rong Heat exchangers with flow distributing orifice partitions
US20050172664A1 (en) * 2002-12-21 2005-08-11 Jae-Heon Cho Evaporator
US20050235691A1 (en) * 2004-04-08 2005-10-27 Denso Corporation Refrigerant evaporator
US20050247443A1 (en) * 2004-04-28 2005-11-10 Kim Jae H Header pipe evaporator for use in an automobile
US20060011335A1 (en) * 2002-12-12 2006-01-19 Zexel Valeo Climate Control Corporation Tank for heat exchanger
US7021371B2 (en) * 2000-10-18 2006-04-04 Mitsubishi Heavy Industries, Ltd. Heat exchanger
US20070084594A1 (en) * 2003-11-14 2007-04-19 Showa Denko K.K. Evaporator and process for fabricating same
US20070144721A1 (en) * 2003-08-01 2007-06-28 Showa Denko K.K. Heat exchanger
US7303004B2 (en) * 2003-11-28 2007-12-04 Valeo Thermal Systems Japan Corporation Heat exchanger

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5284203A (en) * 1992-05-13 1994-02-08 Valeo Thermique Moteur Fluid header with an integral expansion chamber for a heat exchanger, in particular for a motor vehicle
US5582239A (en) * 1994-05-16 1996-12-10 Sanden Corporation Heat exchanger and method of making same
US6272881B1 (en) * 1998-04-03 2001-08-14 Denso Corporation Refrigerant evaporator and manufacturing method for the same
US6230787B1 (en) * 1998-11-09 2001-05-15 Calsonic Kansei Corporation Stack type evaporator
US20020079093A1 (en) * 2000-10-10 2002-06-27 Xiaoyang Rong Heat exchangers with flow distributing orifice partitions
US7021371B2 (en) * 2000-10-18 2006-04-04 Mitsubishi Heavy Industries, Ltd. Heat exchanger
US20060011335A1 (en) * 2002-12-12 2006-01-19 Zexel Valeo Climate Control Corporation Tank for heat exchanger
US20050172664A1 (en) * 2002-12-21 2005-08-11 Jae-Heon Cho Evaporator
US20070144721A1 (en) * 2003-08-01 2007-06-28 Showa Denko K.K. Heat exchanger
US20070084594A1 (en) * 2003-11-14 2007-04-19 Showa Denko K.K. Evaporator and process for fabricating same
US7303004B2 (en) * 2003-11-28 2007-12-04 Valeo Thermal Systems Japan Corporation Heat exchanger
US20050235691A1 (en) * 2004-04-08 2005-10-27 Denso Corporation Refrigerant evaporator
US20050247443A1 (en) * 2004-04-28 2005-11-10 Kim Jae H Header pipe evaporator for use in an automobile

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SHANGHAI SHUANGHUA AUTOMOBILE AIR CONDITIONER PART

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DONG, ZONGDE;REEL/FRAME:020167/0840

Effective date: 20071008

AS Assignment

Owner name: SHANGHAI SHUANGHUA AUTO PARTS CO., LTD., CHINA

Free format text: CHANGE OF NAME;ASSIGNOR:SHANGHAI SHUANGHUA AUTOMOBILE AIR CONDITIONER PARTS CO., LTD.;REEL/FRAME:021037/0899

Effective date: 20071115

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION