EP2079968A1 - Échangeur de chaleur multicanaux avec dispositif de détente multi-étage - Google Patents

Échangeur de chaleur multicanaux avec dispositif de détente multi-étage

Info

Publication number
EP2079968A1
EP2079968A1 EP06845767A EP06845767A EP2079968A1 EP 2079968 A1 EP2079968 A1 EP 2079968A1 EP 06845767 A EP06845767 A EP 06845767A EP 06845767 A EP06845767 A EP 06845767A EP 2079968 A1 EP2079968 A1 EP 2079968A1
Authority
EP
European Patent Office
Prior art keywords
expansion
refrigerant
orifices
received
expansion device
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.)
Withdrawn
Application number
EP06845767A
Other languages
German (de)
English (en)
Other versions
EP2079968A4 (fr
Inventor
Mikhail B. Gorbounov
Yirong Jiang
Joseph J. Sangiovanni
Henry Beamer
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.)
Carrier Corp
Original Assignee
Carrier Corp
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 Carrier Corp filed Critical Carrier Corp
Publication of EP2079968A1 publication Critical patent/EP2079968A1/fr
Publication of EP2079968A4 publication Critical patent/EP2079968A4/fr
Withdrawn legal-status Critical Current

Links

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
    • F25B39/028—Evaporators having distributing means
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
    • 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
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0071—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2260/00—Heat exchangers or heat exchange elements having special size, e.g. microstructures
    • F28F2260/02—Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels

Definitions

  • the present invention relates to an expansion device for heat exchangers. More particularly, the present invention relates to an expansion device for mini- or rnicro-cha ⁇ nel heat exchangers (MCHX) that provide pressure reductions and mixing through multiple orifices to improve heat exchanger efficiency.
  • MCHX mini- or rnicro-cha ⁇ nel heat exchangers
  • Refrigeration systems are well known in the art and ubiquitous in such industries as food service industry, chemical and automotive industry. On a larger scale, heat exchangers are required for office buildings and for residential purposes. Failure or more commonly, lack of efficiency is a great concern with such systems.
  • Traditional refrigeration cycles, or air conditioners include a compressor, a condenser, an expansion valve, an evaporator and a refrigerant whose evaporation creates the cool temperature.
  • the evaporator is a series of parallel narrow tubes. When the refrigerant fluid passes from the condenser through the evaporator, a pressure and temperature drop occurs thus achieving the cooler temperature.
  • Cooling systems can use either a single or a two-phase coolant throughout the circuit.
  • refrigerant is a single phase cooling fluid, such as the water in an automotive radiator
  • the fluid will be in two phases during and after expansion.
  • refrigerant vapor compression systems as the fluid passes from the condenser to the evaporator a portion of the fluid expands to vapor. Consequently, a portion of the fluid entering the evaporator is a vapor;, resulting in poor heat exchanger efficiency.
  • This vapor problem is called maldistribution and is a common problem of heat exchangers that use parallel refrigerant paths. Gravity and the difference in density of the vapor and liquid phases cause this problem..
  • MCHX micro-channel heat exchangers
  • an expansion device for a heat exchanger having a manifold and a plurality of mini-and or micro-channels.
  • the expansion device has an outer element having a plurality of orifices therethrough that is received in the manifold, and an inner element telescopically received in the outer element having at least one orifice therethrough and being in fluid communication with the plurality of orifices. Fluid passing through the at least one orifice and through the plurality of orifices is expanded and reduced in pressure prior to entering the manifold.
  • Fig. 1 illustrates a heat exchanger having several mini-channel tubes incorporating an expansion according to the first embodiment of the present invention
  • Fig 2 illustrates an expansion device according to a first embodiment of the present invention that is inserted in a heat exchanger manifold of Fig. 1;
  • Fig. 3 illustrates a side view of a second configuration of the expansion device of the present invention inserted into a shaped manifold for further pressure reduction
  • Fig. 4 illustrates a bottom view of the perforate manifold of Fig. 3 having openings for expansion devices of Fig. 2.
  • Fig. 1 illustrates a mini-channel heat exchanger generally represented by reference numeral 10.
  • Heat exchanger 10 has an inlet mainifold 15 and an outlet manifold 20.
  • Connecting manifolds 15 and 20 are a series or plurality of mini- or micro-channel tubes 25 that form the main body of heat exchanger 10.
  • Each mini- or micro-channel tube 25 is a very narrow tube that with other tubes form the main body of the heat exchanger 10 and transport refrigerant 30 during evaporation.
  • Inlet manifold 15 receives a refrigerant 30 that can be either a single or a two-phase refrigerant that flows through mini- or micro-channel tubes 25.
  • Inlet manifold receives multi-expansion device 40 of the present invention.
  • At least one or more multi-expansion devices 40 of the present invention can be inserted into manifold 15 to enhance pressure drop of refrigerant 30 to ensure an even distribuiton of refrigerant for mini-channel tubes 25. While Fig. 1 shows a single- pass configuration of a heat exchanger, a two or a multi-pass heat exchanger could also be used.
  • expansion device 40 Referring to Fig. 2, a detailed view of expansion device 40, is shown.
  • Expansion device 40 has a feeder tube 45 that receives refrigerant 30 from an earlier circuit. Fitted to feeder tube 45 is a first coupler 50 having an orifice 55 at its upper most point or apex. Coupled to first coupler 50 is a second coupler 60. Coupler 60 has a series or plurality of orifices 65 around a top portion thereof at its apex and at points peripheral or a 90° angles to the apex.
  • refrigerant 30 flows from feeder tube to into expansion device 40, it is received in first coupler 50.
  • refrigerant 30 flows through orifice 55 is experiences a pressure drop and an expansion and is mixed in space 70.
  • refrigerant 30 is released through orifices 65, refrigerant 30 is further reduced in pressure and again expanded.
  • refrigerant passes again through orifices 65 of second coupler 60, the pressure of refrigerant 30 is reduced even further and refrigerant 30 expands and is redistributed in manifold 15, prior to entering mini-channel tubes 25 of heat exchanger 10.
  • Fig. 1 shows two expansion devices 40 being used more expansion devices could be used depending upon system requirements.
  • Fig. 2 shows two couplers 50 and 60 having orifices 55 and 65, respectively, in series, other orifice or coupler configurations could also be used to achieve double expansion of refrigerant 30.
  • a second configuration of the expansion system inserted in to a shaped manifold is. shown, generally referred by reference numeral 70.
  • the expansion device 40 of the first embodiment is inserted into a shaped manifold 85 at multiple apertures, 90 and 95.
  • Shaped manifold 85 has a circular cross-section that is divided into two chambers, a receiving chamber 100 and an outlet chamber 105, by divider 102.
  • Receiving chamber 100 receives an expansion device 40 in each of apertures 90 and 95.
  • Divider 102 has a series of apertures 110 that permits an additional degree of expansion even after refrigerant 30 has been expanded and depressurized twice in expansion device 40.
  • manifold 85 is shown- as having a circular cross-section other cross- sections could also be used to offer the same pressure reduction and expansion benefits. Further more apertures 90 could be located in manifold 85 for a greater expansion and mixing of refrigerant.

Landscapes

  • 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

L'invention concerne un dispositif de détente pour échangeur de chaleur muni d'un collecteur et d'une pluralité de mini- et/ou de micro-canaux. Le dispositif de détente comprend un élément extérieur traversé par une pluralité d'orifices, qui est logé dans le collecteur, et un élément intérieur logé de façon télescopique dans l'élément extérieur, traversé par au moins un orifice et se trouvant en communication fluidique avec la pluralité d'orifices. Le fluide traversant ledit ou lesdits orifices et la pluralité d'orifices est détendu et sa pression est réduite avant qu'il n'entre dans le collecteur.
EP06845767.0A 2006-10-13 2006-12-19 Échangeur de chaleur multicanaux avec dispositif de détente multi-étage Withdrawn EP2079968A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85138206P 2006-10-13 2006-10-13
PCT/US2006/048347 WO2008045111A1 (fr) 2006-10-13 2006-12-19 Échangeur de chaleur multicanaux avec dispositif de détente multi-étage

Publications (2)

Publication Number Publication Date
EP2079968A1 true EP2079968A1 (fr) 2009-07-22
EP2079968A4 EP2079968A4 (fr) 2013-05-01

Family

ID=39283137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06845767.0A Withdrawn EP2079968A4 (fr) 2006-10-13 2006-12-19 Échangeur de chaleur multicanaux avec dispositif de détente multi-étage

Country Status (4)

Country Link
US (1) US20100037652A1 (fr)
EP (1) EP2079968A4 (fr)
CN (1) CN101589278B (fr)
WO (1) WO2008045111A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8166776B2 (en) 2007-07-27 2012-05-01 Johnson Controls Technology Company Multichannel heat exchanger
WO2010078722A1 (fr) * 2009-01-06 2010-07-15 Danfoss Qinbao (Hangzhou) Plate Heat Exchanger Company Limited Échangeur thermique, système de pompe à chaleur et système de climatisation
CN103712376B (zh) * 2013-12-30 2016-03-30 杭州三花微通道换热器有限公司 集成有节流装置的换热器和具有它的制冷系统
US11022382B2 (en) 2018-03-08 2021-06-01 Johnson Controls Technology Company System and method for heat exchanger of an HVAC and R system
JP6963098B2 (ja) * 2018-03-27 2021-11-05 東芝キヤリア株式会社 熱交換器、熱交換モジュール、および冷凍サイクル装置
KR102725291B1 (ko) 2021-04-22 2024-11-01 (주) 래트론 유연히터 및 그 유연히터의 제조방법
US11879676B2 (en) 2021-07-30 2024-01-23 Danfoss A/S Thermal expansion valve for a heat exchanger and heat exchanger with a thermal expansion valve

Family Cites Families (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4474232A (en) * 1981-07-02 1984-10-02 Carrier Corporation Heat exchange unit for both vertical and horizontal applications
US4548050A (en) * 1983-05-31 1985-10-22 Carrier Corporation High efficiency fan coil unit
US4620423A (en) * 1985-09-25 1986-11-04 Carrier Corporation Expansion devices for a multizone heat pump system
US5279360A (en) * 1985-10-02 1994-01-18 Modine Manufacturing Co. Evaporator or evaporator/condenser
US4829780A (en) * 1988-01-28 1989-05-16 Modine Manufacturing Company Evaporator with improved condensate collection
US4787210A (en) * 1988-02-05 1988-11-29 Thermo King Corporation Bus air conditioning unit
US4993487A (en) * 1989-03-29 1991-02-19 Sundstrand Corporation Spiral heat exchanger
US4922732A (en) * 1989-11-20 1990-05-08 Dyna-Manufacturing, Ltd. Evaporator system for refrigeration systems
US4972678A (en) * 1989-11-24 1990-11-27 Finlayson Donald F Refrigeration and heat exchange system and process
US5245843A (en) * 1991-01-31 1993-09-21 Nippondenso Co., Ltd. Evaporator
JP3459271B2 (ja) * 1992-01-17 2003-10-20 株式会社デンソー 自動車用空調装置のヒータコア
US5390507A (en) * 1992-09-17 1995-02-21 Nippondenso Co., Ltd. Refrigerant evaporator
JP2917764B2 (ja) * 1992-09-17 1999-07-12 株式会社デンソー 冷房装置用蒸発器
US5326537A (en) * 1993-01-29 1994-07-05 Cleary James M Counterflow catalytic device
DE59405261D1 (de) * 1993-07-03 1998-03-19 Flitsch E Gmbh & Co Plattenwärmeaustauscher mit kältemittelverteiler
KR0136759B1 (ko) * 1993-09-15 1998-07-01 김광호 냉난방 공기조화기
JPH07284642A (ja) * 1994-04-19 1995-10-31 Hisao Kojima ミキシングエレメント及びその製造方法
US5755107A (en) * 1994-09-22 1998-05-26 Denso Corporation Automotive air conditioner
CN1044334C (zh) * 1994-12-28 1999-07-28 黄为民 搅拌釜
US5826649A (en) * 1997-01-24 1998-10-27 Modine Manufacturing Co. Evaporator, condenser for a heat pump
KR19980068338A (ko) * 1997-02-18 1998-10-15 김광호 냉매팽창장치
US5910167A (en) * 1997-10-20 1999-06-08 Modine Manufacturing Co. Inlet for an evaporator
US6032728A (en) * 1998-11-12 2000-03-07 Livernois Research & Development Co. Variable pitch heat exchanger
JP2000346568A (ja) * 1999-05-31 2000-12-15 Mitsubishi Heavy Ind Ltd 熱交換器
DE60010377T2 (de) * 1999-07-02 2004-09-16 Denso Corp., Kariya Kältemittelverdampfer mit Kältemittelverteilung
US6478081B1 (en) * 1999-08-04 2002-11-12 Apv North America Inc. Plate heat exchanger
US6289924B1 (en) * 2000-02-24 2001-09-18 Richard C. Kozinski Variable flow area refrigerant expansion device
KR100365022B1 (ko) * 2000-05-04 2002-12-16 한국기계연구원 고효율 다채널형 루프 열전달장치
JP3644358B2 (ja) * 2000-07-05 2005-04-27 株式会社デンソー 冷凍サイクルの減圧装置
US6877550B2 (en) * 2000-07-21 2005-04-12 Denso Corporation Vehicle air conditioner
US6457325B1 (en) * 2000-10-31 2002-10-01 Modine Manufacturing Company Refrigeration system with phase separation
US6460358B1 (en) * 2000-11-13 2002-10-08 Thomas H. Hebert Flash gas and superheat eliminator for evaporators and method therefor
US6964296B2 (en) * 2001-02-07 2005-11-15 Modine Manufacturing Company Heat exchanger
US6557371B1 (en) * 2001-02-08 2003-05-06 York International Corporation Apparatus and method for discharging fluid
CN1526063A (zh) * 2001-03-14 2004-09-01 昭和电工株式会社 分层型热交换器、汽车空调用的分层型蒸发器和致冷系统
US6460372B1 (en) * 2001-05-04 2002-10-08 Carrier Corporation Evaporator for medium temperature refrigerated merchandiser
TW552382B (en) * 2001-06-18 2003-09-11 Showa Dendo Kk Evaporator, manufacturing method of the same, header for evaporator and refrigeration system
JP4109444B2 (ja) * 2001-11-09 2008-07-02 Ｇａｃ株式会社 熱交換器およびその製造方法
US6725913B2 (en) * 2001-11-30 2004-04-27 Modine Manufacturing Company High pressure header and heat exchanger and method of making the same
US20030116310A1 (en) * 2001-12-21 2003-06-26 Wittmann Joseph E. Flat tube heat exchanger core with internal fluid supply and suction lines
JP3945252B2 (ja) * 2002-01-10 2007-07-18 株式会社デンソー エジェクタサイクル用の気液分離器
US6715539B2 (en) * 2002-02-19 2004-04-06 Michael Bianco Heat exchanger and airflow therethrough
WO2003073028A1 (fr) * 2002-02-28 2003-09-04 Paradis Marc A Procede et appareil de refroidissement et de deshumidification de l'air
JP3960233B2 (ja) * 2002-04-03 2007-08-15 株式会社デンソー 熱交換器
CA2381214C (fr) * 2002-04-10 2007-06-26 Long Manufacturing Ltd. Tube d'admission d'echangeur de chaleur avec agitateur pour la repartition du flux
US6688138B2 (en) * 2002-04-16 2004-02-10 Tecumseh Products Company Heat exchanger having header
US6814136B2 (en) * 2002-08-06 2004-11-09 Visteon Global Technologies, Inc. Perforated tube flow distributor
JPWO2004025207A1 (ja) * 2002-09-10 2006-01-12 ジーエーシー株式会社 熱交換器およびその製造方法
PT1413845E (pt) * 2002-10-25 2005-10-31 Denso Thermal Systems Spa Condensador para veiculos
JP4280545B2 (ja) * 2003-05-14 2009-06-17 カルソニックカンセイ株式会社 複合型熱交換器
JP4221244B2 (ja) * 2003-05-14 2009-02-12 カルソニックカンセイ株式会社 複合型熱交換器
JP4222137B2 (ja) * 2003-07-22 2009-02-12 株式会社デンソー 放熱器
US6912864B2 (en) * 2003-10-10 2005-07-05 Hussmann Corporation Evaporator for refrigerated merchandisers
US6848268B1 (en) * 2003-11-20 2005-02-01 Modine Manufacturing Company CO2 cooling system
EP1548380A3 (fr) * 2003-12-22 2006-10-04 Hussmann Corporation Evaporateur à tubes plats avec micro-distributeur
CN2745001Y (zh) * 2004-12-02 2005-12-07 珠海格力电器股份有限公司 空调器的分液器
CA2596557A1 (fr) * 2005-02-02 2006-08-10 Carrier Corporation Echangeur de chaleur a detente du fluide sur plusieurs etages dans le collecteur

Also Published As

Publication number Publication date
CN101589278A (zh) 2009-11-25
EP2079968A4 (fr) 2013-05-01
US20100037652A1 (en) 2010-02-18
WO2008045111A1 (fr) 2008-04-17
HK1138354A1 (en) 2010-08-20
CN101589278B (zh) 2011-07-06

Similar Documents

Publication Publication Date Title
US8113270B2 (en) Tube insert and bi-flow arrangement for a header of a heat pump
EP2242963B1 (fr) Echangeur de chaleur comprenant un distributeur à plusieurs tubes
EP2079973B1 (fr) Échangeurs de chaleur à passages multiples ayant des collecteurs de retour pourvus de pièces rapportées de distribution
KR101338283B1 (ko) 냉매 유체의 분배 균일성이 향상된 다통로 열교환기
US20100206535A1 (en) Heat exchangers having baffled manifolds
US20080105420A1 (en) Parallel Flow Heat Exchanger With Crimped Channel Entrance
US20080190134A1 (en) Refrigerant flow distributor
KR20060130776A (ko) 헤더 내의 다단 유체 팽창을 이용한 열교환기
US8333088B2 (en) Heat exchanger design for improved performance and manufacturability
US20060101850A1 (en) Parallel flow evaporator with shaped manifolds
US20100037652A1 (en) Multi-channel heat exchanger with multi-stage expansion
HK1138354B (en) Multi-channel heat exchanger with multi-stage expansion device
US20250137738A1 (en) Microchannel heat exchanger
EP4166871A1 (fr) Dispositif à cycle de réfrigération
WO2021214849A1 (fr) Climatiseur, congélateur et distributeur
HK1117223B (en) Tube inset and bi-flow arrangement for a header of a heat pump
HK1132792A (en) Parallel flow heat exchanger with crimped channel entrance
HK1149955B (en) Heat exchanger including multiple tube distributor

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090513

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JIANG, YIRONG

Inventor name: SANGIOVANNI, JOSEPH J.

Inventor name: GORBOUNOV, MIKHAIL B.

Inventor name: BEAMER, HENRY

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20130402

RIC1 Information provided on ipc code assigned before grant

Ipc: F25B 41/06 20060101AFI20130325BHEP

Ipc: F28F 9/02 20060101ALI20130325BHEP

17Q First examination report despatched

Effective date: 20131129

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150326

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20150806