CN101788242A - Refrigerant distributor for heat exchanger and heat exchanger - Google Patents

Refrigerant distributor for heat exchanger and heat exchanger Download PDF

Info

Publication number
CN101788242A
CN101788242A CN200910127918.1A CN200910127918A CN101788242A CN 101788242 A CN101788242 A CN 101788242A CN 200910127918 A CN200910127918 A CN 200910127918A CN 101788242 A CN101788242 A CN 101788242A
Authority
CN
China
Prior art keywords
pipe
heat exchanger
refrigerant distributor
refrigerant
distributor
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.)
Pending
Application number
CN200910127918.1A
Other languages
Chinese (zh)
Inventor
蒋建龙
陆向迅
黄宁杰
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.)
Danfoss Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd
Original Assignee
Danfoss Sanhua Hangzhou Micro Channel Heat Exchanger 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 Danfoss Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd filed Critical Danfoss Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd
Priority to CN200910127918.1A priority Critical patent/CN101788242A/en
Priority to EP10003133.5A priority patent/EP2236973B1/en
Priority to US12/732,027 priority patent/US20100242535A1/en
Publication of CN101788242A publication Critical patent/CN101788242A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
    • F28F9/0273—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple holes
    • 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
    • F25B39/028—Evaporators having distributing means

Landscapes

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

Abstract

The invention provides a refrigerant distributor for a heat exchanger, which comprises a pipe. The pipe is provided with an inlet which is approximately arranged at one end of the pipe and is used for a refrigerant to flow in. The sectional area of a fluid channel in the pipe is gradually reduced from one end to the other end of the pipe. As the refrigerant distributor adopts the above structure, the distribution of the refrigerant is uniform.

Description

The refrigerant distributor and the heat exchanger that are used for heat exchanger
Technical field
The present invention relates to a kind of heat exchanger that is used for the refrigerant distributor of heat exchanger and has this refrigerant distributor.
Background technology
Parallel-flow evaporator 2 ' in because the cold-producing medium of import 7 is vapour-liquid two-phases,, can cause cold-producing medium in each stream 4 maldistribution if adopt inappropriate refrigerant distributor.
Distributor 1 ' be to adopt a pipe to insert header 3 inside, the outlet 8 of on the refrigerant inlet direction of pipe, opening identical big or small uniform distances.As illustrated in fig. 1 and 2.Near inlet 7 distributor 1 ' outlet 8 flow velocity height, sendout is many, and away from the distributor 1 of inlet 7 ' outlet 8 flow velocitys low, sendout is few.
The place of this scheme deficiency is: because cold-producing medium flow on flow direction reduces gradually, be identical cross-sectional area under identical caliber, according to formula: Q=VA
The Q-volume flow; The V-flow velocity; A-distributor cross-sectional area.
Therefore therefore, the flow velocity of cold-producing medium reduces gradually on the flow of refrigerant direction, the also minimizing gradually of flow of the outlet by identical size.Outlet sendout near import is big, and is little away from the sendout of the outlet of import.And after the flow velocity reduction, vapour-liquid is separated easily in the distributing pipe, causes easily and distributes inequality.
Summary of the invention
The purpose of this invention is to provide a kind of heat exchanger that is used for the refrigerant distributor of heat exchanger and has this refrigerant distributor, this refrigerant distributor and heat exchanger can make the cold-producing medium distribution ratio of distributor more even.
According to an aspect of the present invention, the invention provides a kind of refrigerant distributor that is used for heat exchanger, this refrigerant distributor comprises: pipe, described pipe has the inlet that is used for the cold-producing medium inflow of an end that is positioned at described pipe substantially, and the cross-sectional area of the fluid passage in the wherein said pipe reduces gradually from the end to end of described pipe.
According to one embodiment of the present invention, described pipe is by pipe is divided into multistage, and makes from the cross section of every section pipe of end to end of described pipe more flat than the cross section of the preceding paragraph pipe by the described pipe of compacting.
According to one embodiment of the present invention, described pipe comprises the multistage pipe, and is littler than the cross-sectional area of the preceding paragraph pipe from the cross-sectional area of every section pipe of end to end of described pipe.
According to one embodiment of the present invention, described pipe comprises the pipe that a plurality of length are different, first pipe is the shortest, and be used for from described first pipe that enters the mouth away from the end scope of described inlet in the assignment system cryogen, the length of remaining each pipe increase successively and remaining each pipe in each pipe be used for from a pipe away from the end of described inlet to this pipe away from the scope of the end of described inlet in the assignment system cryogen.According to another embodiment of the invention, described pipe comprises 3 pipes that length is different.
According to one embodiment of the present invention, described pipe is a conical pipe.
According to a further aspect in the invention, the invention provides a kind of heat exchanger, comprising: the end that is arranged on heat exchanger is used for the refrigerant distributor of assignment system cryogen, and wherein said refrigerant distributor is a kind of in the above-mentioned described refrigerant distributor.
Described heat exchanger can be a parallel-flow evaporator.
The present invention makes the cold-producing medium distribution ratio more even by adopting said structure.
Description of drawings
The parallel-flow evaporator of Fig. 1 prior art.
Fig. 2 is the cutaway view along the line A-A of Fig. 1.
Fig. 3 is the schematic diagram according to the refrigerant distributor that is used for parallel-flow evaporator of first embodiment of the invention.
Fig. 4 is the schematic diagram according to the refrigerant distributor that is used for parallel-flow evaporator of second embodiment of the invention.
Fig. 5 is the schematic diagram according to the refrigerant distributor that is used for parallel-flow evaporator of third embodiment of the invention.
Fig. 6 is to use the schematic diagram according to the parallel-flow evaporator of the refrigerant distributor of third embodiment of the invention.
The specific embodiment
The present invention will be further described below in conjunction with the drawings and the specific embodiments.
Parallel-flow evaporator according to the present invention has the refrigerant distributor of the end that is arranged on parallel-flow evaporator, and this refrigerant distributor comprises pipe.
Refrigerant distributor according to an embodiment of the invention is described below.
Embodiment 1
Distributor 1 comprises pipe 9, flattens this pipe on the flow of refrigerant direction gradually, keep cross section to have identical girth, but sectional area reduces gradually on the flow of refrigerant direction.As shown in Figure 3.
Pass through said structure, on the flow of refrigerant direction, refrigerant flow reduces gradually, but cross-sectional area also reduces gradually, can get according to formula Q=VA, cold-producing medium in whole distributor flow velocity substantially evenly, the sendout of the outlet by same apertures substantially evenly, thereby can guarantee by the refrigerant amount of each outlet even.
Embodiment 2
Distributor 1 comprises the pipe 9 of several sections different-diameters that weld together, and on the flow of refrigerant direction, each section pipe diameter reduces gradually.As shown in Figure 4.
This scheme advantage: on the flow of refrigerant direction, refrigerant flow reduces gradually, but cross-sectional area also reduces gradually, can get according to formula Q=VA, cold-producing medium flow velocity in whole distributor is more even, the sendout of the outlet by same apertures substantially evenly, thereby can guarantee by the refrigerant amount of each outlet even.
Embodiment 3
Distributor 1 is included in the distributing pipe 9 of inlet header 3 inner many (among the figure being 3) identical calibers that insert, and as shown in Figure 6, every distributing pipe 9 is responsible for the sendout of the flat tube 5 of equal number respectively, as shown in Figure 5.Among Fig. 5, the cold-producing medium stream that Reference numeral 8 ' every distributing pipe of expression 9 is distributed.
By adopting said structure because the flat tube number that every distributor tube is responsible for distributing reduces, so the also corresponding minimizing of dispense aperture, so the flow velocity of cold-producing medium in distributor gradually reduction reduce, the flow velocity of cold-producing medium in distributor is relatively even.
Although described the foregoing description, the present invention also can adopt other suitable manner to make the flow rate of fluid in the distributor tube relatively even.For example can adopt conical pipe.
Although described several embodiments of the present invention above, the invention is not restricted to the foregoing description.For example, in the foregoing description, distributing pipe 9 and header 3 made for pipe or by pipe, but they also can be the pipes in any suitable other cross section or be made by the pipe in any suitable other cross section, elliptical tube for example.
In addition, among the embodiment shown in the above-mentioned figure, be described and illustrate with the upright situation of placing of parallel-flow evaporator, this only is that the present invention obviously is not limited to the example shown in the figure for the convenience on describing and illustrating.In addition, saved the header that is positioned at the parallel-flow evaporator upside among the figure.Distributing pipe 9 also can be arranged in the header of upside.
In addition, although toply described the present invention at parallel-flow evaporator, the present invention can be applied to any suitable heat exchanger.
Moreover in the foregoing description, distributing pipe 9 only inserts from an end of header, still, for the distributing pipe 9 shown in Fig. 3-4, can adopt 9, two distributing pipes 9 of two distributing pipes to insert from the two ends of header respectively.For the distributor shown in Fig. 5, can adopt two distributors, two distributors insert from the two ends of header respectively.

Claims (8)

1. refrigerant distributor that is used for heat exchanger comprises:
Pipe, described pipe have the inlet that is used for the cold-producing medium inflow of an end that is positioned at described pipe substantially,
The cross-sectional area of the fluid passage in the wherein said pipe reduces gradually from the end to end of described pipe.
2. the refrigerant distributor that is used for heat exchanger according to claim 1, wherein
Described pipe is by pipe is divided into multistage, and makes from the cross section of every section pipe of end to end of described pipe more flat than the cross section of the preceding paragraph pipe by the described pipe of compacting.
3. the refrigerant distributor that is used for heat exchanger according to claim 1, wherein
Described pipe comprises the multistage pipe, and is littler than the cross-sectional area of the preceding paragraph pipe from the cross-sectional area of every section pipe of end to end of described pipe.
4. the refrigerant distributor that is used for heat exchanger according to claim 1, wherein
Described pipe comprises the pipe that a plurality of length are different, first pipe is the shortest, and be used for from described first pipe that enters the mouth away from the end scope of described inlet in the assignment system cryogen, the length of remaining each pipe increase successively and remaining each pipe in each pipe be used for from a pipe away from the end of described inlet to this pipe away from the scope of the end of described inlet in the assignment system cryogen.
5. the refrigerant distributor that is used for heat exchanger according to claim 4, wherein
Described pipe comprises 3 pipes that length is different.
6. the refrigerant distributor that is used for heat exchanger according to claim 1, wherein
Described pipe is a conical pipe.
7. heat exchanger comprises:
The end that is arranged on heat exchanger is used for the refrigerant distributor of assignment system cryogen,
Wherein said refrigerant distributor is according to each the described refrigerant distributor among the claim 1-6.
8. heat exchanger according to claim 7, wherein
Described heat exchanger is a parallel-flow evaporator.
CN200910127918.1A 2009-03-25 2009-03-25 Refrigerant distributor for heat exchanger and heat exchanger Pending CN101788242A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200910127918.1A CN101788242A (en) 2009-03-25 2009-03-25 Refrigerant distributor for heat exchanger and heat exchanger
EP10003133.5A EP2236973B1 (en) 2009-03-25 2010-03-24 Refrigerant distributer for heat exchanger and heat exchanger
US12/732,027 US20100242535A1 (en) 2009-03-25 2010-03-25 Refrigerant distributor for heat exchanger and heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910127918.1A CN101788242A (en) 2009-03-25 2009-03-25 Refrigerant distributor for heat exchanger and heat exchanger

Publications (1)

Publication Number Publication Date
CN101788242A true CN101788242A (en) 2010-07-28

Family

ID=42263798

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910127918.1A Pending CN101788242A (en) 2009-03-25 2009-03-25 Refrigerant distributor for heat exchanger and heat exchanger

Country Status (3)

Country Link
US (1) US20100242535A1 (en)
EP (1) EP2236973B1 (en)
CN (1) CN101788242A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103644688A (en) * 2013-12-24 2014-03-19 杭州三花微通道换热器有限公司 Convection type refrigerant distribution device and heat exchanger adopting same
CN103759572A (en) * 2013-12-10 2014-04-30 柳州五菱宝马利汽车空调有限公司 Bayonet-tube collecting and distributing tube for automotive parallel flow evaporator
CN105849492A (en) * 2013-12-24 2016-08-10 开利公司 Distributor for falling film evaporator
CN106322865A (en) * 2016-10-31 2017-01-11 珠海格力电器股份有限公司 Air conditioning unit and knockout thereof
CN110230901A (en) * 2019-05-27 2019-09-13 广州大学 A kind of the refrigerant distribution pipe and heat pump system of gas-liquid two-phase common type

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105431704B (en) * 2013-08-12 2018-07-27 开利公司 Heat exchanger and flow distributor
US10184703B2 (en) 2014-08-19 2019-01-22 Carrier Corporation Multipass microchannel heat exchanger
FR3059408A1 (en) * 2016-11-30 2018-06-01 Valeo Systemes Thermiques DEVICE FOR DISPENSING A REFRIGERANT FLUID INSIDE A COLLECTOR BOX OF A HEAT EXCHANGER
FR3059407B1 (en) * 2016-11-30 2019-10-18 Valeo Systemes Thermiques DEVICE FOR MIXING A REFRIGERANT FLUID INSIDE A COLLECTOR BOX OF A HEAT EXCHANGER
US11713931B2 (en) 2019-05-02 2023-08-01 Carrier Corporation Multichannel evaporator distributor
US11221163B2 (en) * 2019-08-02 2022-01-11 Randy Lefor Evaporator having integrated pulse wave atomizer expansion device
US11713928B2 (en) * 2019-11-07 2023-08-01 Carrier Corporation Microchannel heat exchanger having auxiliary headers and core
US11408688B2 (en) * 2020-06-17 2022-08-09 Mahle International Gmbh Heat exchanger
CN114812016B (en) * 2022-05-20 2023-02-07 西安交通大学 Micro-channel evaporator and working method thereof
US20240093952A1 (en) * 2022-09-15 2024-03-21 Hamilton Sundstrand Corporation Crossflow heat exchanger with stacked distribution tubes
US20240210128A1 (en) * 2022-12-23 2024-06-27 Carrier Corporation Simple distributor for inlet manifold of microchannel heat exchanger

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2181927A (en) * 1936-04-03 1939-12-05 Albert J Townsend Heat exchanger and method of making same
US3232341A (en) * 1960-02-01 1966-02-01 Garrett Corp Condenser
US3254707A (en) * 1964-03-19 1966-06-07 Hunt Foods And Ind Inc Heat exchanger and cooling apparatus
US3976128A (en) * 1975-06-12 1976-08-24 Ford Motor Company Plate and fin heat exchanger
DE3310236A1 (en) * 1983-03-22 1984-09-27 Autokühler-Gesellschaft mbH, 3520 Hofgeismar Refrigerant distributor for the evaporator of a refrigerator or heat pump
US4697635A (en) * 1984-07-05 1987-10-06 Apd Cryogenics Inc. Parallel wrapped tube heat exchanger
JP3210062B2 (en) * 1992-03-23 2001-09-17 松下冷機株式会社 Refrigerant flow divider
IL107850A0 (en) * 1992-12-07 1994-04-12 Multistack Int Ltd Improvements in plate heat exchangers
ES2115242T3 (en) * 1993-07-03 1998-06-16 Flitsch E Gmbh & Co PLATE HEAT EXCHANGER WITH COOLING AGENT DISTRIBUTOR DEVICE.
JP4840681B2 (en) * 2005-09-16 2011-12-21 株式会社ヴァレオジャパン Heat exchanger
DE102005059919A1 (en) * 2005-12-13 2007-06-14 Behr Gmbh & Co. Kg Heat exchanger e.g. evaporator has injecting pipe and several openings whereby heat exchanger is formed such that flow rate of medium is increased in injecting pipe in range with part of openings
WO2008060270A1 (en) * 2006-11-13 2008-05-22 Carrier Corporation Minichannel heat exchanger header insert for distribution
US20090173482A1 (en) * 2008-01-09 2009-07-09 Beamer Henry E Distributor tube subassembly
CN101788243B (en) * 2009-04-03 2011-09-28 三花丹佛斯（杭州）微通道换热器有限公司 Refrigerant distributor for heat exchanger and heat exchanger

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103759572A (en) * 2013-12-10 2014-04-30 柳州五菱宝马利汽车空调有限公司 Bayonet-tube collecting and distributing tube for automotive parallel flow evaporator
CN103644688A (en) * 2013-12-24 2014-03-19 杭州三花微通道换热器有限公司 Convection type refrigerant distribution device and heat exchanger adopting same
CN103644688B (en) * 2013-12-24 2016-04-13 杭州三花微通道换热器有限公司 Distribution device and the heat exchanger with it
CN105849492A (en) * 2013-12-24 2016-08-10 开利公司 Distributor for falling film evaporator
CN106322865A (en) * 2016-10-31 2017-01-11 珠海格力电器股份有限公司 Air conditioning unit and knockout thereof
CN110230901A (en) * 2019-05-27 2019-09-13 广州大学 A kind of the refrigerant distribution pipe and heat pump system of gas-liquid two-phase common type

Also Published As

Publication number Publication date
EP2236973B1 (en) 2016-05-18
US20100242535A1 (en) 2010-09-30
EP2236973A2 (en) 2010-10-06
EP2236973A3 (en) 2014-04-23

Similar Documents

Publication Publication Date Title
CN101788242A (en) Refrigerant distributor for heat exchanger and heat exchanger
CN101487669B (en) Heat exchanger comprising multi-pipe distributer
CN101558277B (en) Multi-pass heat exchangers having return manifolds with distributing inserts
EP2392886B1 (en) Orientation insensitive refrigerant distributor tube
CN101788243B (en) Refrigerant distributor for heat exchanger and heat exchanger
US20110240276A1 (en) Heat exchanger having an inlet distributor and outlet collector
CN102027308A (en) Microchannel heat exchanger with enhanced refrigerant distribution
US20130192808A1 (en) Refrigerant guiding pipe and heat exchanger having refrigerant guiding pipe
CN101548150A (en) Method and apparatus for improving distribution of fluid in a heat exchanger
CN106574808A (en) Low refrigerant charge microchannel heat exchanger
CN102313400A (en) Microchannel parallel-flow heat exchanger
CN104154801A (en) Collecting pipe and heat exchanger
CN101639304A (en) Heat exchanger and heat exchanging device including same
CN103604254B (en) A kind of built-in biphase gas and liquid flow flow dividing structure
CN103206815A (en) Bidirectional balanced flow distributor
JP2011169496A (en) Refrigerant distributor
CN103486877B (en) The micro-channel flat coiled heat exchanger of variable-flow-path
US20180156544A1 (en) Two phase distributor evaporator
CN103644688B (en) Distribution device and the heat exchanger with it
US10197312B2 (en) Heat exchanger with reduced length distributor tube
CN203249443U (en) Bidirectional balance flow distributor
KR20210141291A (en) Distributor and air conditioner including the same
CN104006576A (en) Heat exchanger
CN105066525B (en) Refrigerant evenly distributed micro-channel condenser and refrigerator
CN103712486B (en) The micro-channel flat coiled heat exchanger of hydraulic diameter is become in same stream

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Open date: 20100728