EP1264150B1 - Regulator with receiver for refrigerators and heatpumps - Google Patents

Regulator with receiver for refrigerators and heatpumps Download PDF

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Publication number
EP1264150B1
EP1264150B1 EP01911456A EP01911456A EP1264150B1 EP 1264150 B1 EP1264150 B1 EP 1264150B1 EP 01911456 A EP01911456 A EP 01911456A EP 01911456 A EP01911456 A EP 01911456A EP 1264150 B1 EP1264150 B1 EP 1264150B1
Authority
EP
European Patent Office
Prior art keywords
receiver
evaporator
refrigerant
heat exchanger
heat
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.)
Expired - Lifetime
Application number
EP01911456A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1264150A1 (en
Inventor
Lars Christian Wulff Zimmermann
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1264150A1 publication Critical patent/EP1264150A1/en
Application granted granted Critical
Publication of EP1264150B1 publication Critical patent/EP1264150B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • 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
    • F25B41/37—Capillary tubes
    • 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
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/052—Compression system with heat exchange between particular parts of the system between the capillary tube and another part of the refrigeration cycle
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/054—Compression system with heat exchange between particular parts of the system between the suction tube of the compressor and another part of the cycle
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/16—Receivers

Definitions

  • This invention relates to a refrigeration circuit as described in the first part of Claim 1.
  • a circuit like this is known from U.S. Pat. No.2520045, wherein the flow of refrigerant, between receiver and evaporator, is regulated by the difference between the pressure in the evaporator and the pressure in the receiver, which correspond to the temperature at the exit of the evaporator. In this way the difference in pressure between the evaporator and the receiver correspond to the superheat of the evaporator.
  • This interaction makes a self-balancing effect, because increasing superheat causes increasing flow, which causes decreasing superheat - and contrary. That means that the flow of refrigerant to the evaporator is controlled by the superheat of the evaporator, just like an ordinary, thermal expansion valve.
  • the invention distinct from the above mentioned refrigeration circuit by the features of the characterising part of claim 1.
  • the evaporator is completely inundated and the suction gas is supersaturated, which means that the suction gas leaving the evaporator contains refrigerant in liquid state.
  • the temperature in the receiver is controlled by heat exchange between the liquid from the condenser and the supersaturated suction gas. This causes a self-balancing effect because when the fluid content of the suction gas decreases then the temperature of the receiver increases, whereby the flow to the evaporator increases, and the fluid content of the suction gas increases - and contrary. In this way, the flow of refrigerant to the evaporator is controlled by the fluid content of the suction gas.
  • the SelfCoolingValve as described in first part of Claim 2. It is composed of a capillary tube and a heat exchanger, jointed together as an integrated device and placed at the entry of the evaporator or in a tube placed in continuation of the entry of the evaporator.
  • the technique of cooling refrigerant at the entry of the evaporator is known from U.S. Pat. No. 2956421, where same part of a capillary tube extends into the evaporator, makes an U-turn, and ends up at the entry point, where the discharging refrigerant flows across the capillary tube and cools it.
  • the SelfCoolingValve distinct from U.S. Pat. No. 2956421 by a heat exchanger, placed before the capillary tube, wherein the refrigerant is subcooled, before entering the capillary.
  • the present invention provides a refrigeration system where the evaporator is inundated, the suction gas is superheated before it come to compressor and the liquid from the condenser is sub-cooled. All three factors contribute to increase the Coefficient Of Performance (COP). Calculations confirmed by test show that the COP is increased by more than ten percent.
  • COP Coefficient Of Performance
  • the regulator is composed of four parts:
  • the purpose of the heat exchanger is to transfer heat from the liquid from the condenser to the suction gas.
  • the heat exchanger must have a large heat capacity, to suppress resonance between the evaporator and the receiver.
  • the heat capacity of the heat exchanger must be so large, that the pressure in the receiver reacts slower, than the fluid content of the suction gas, in respond to a change in the flow of refrigerant.
  • An appropriated heat capacity can be obtain by incorporating a reservoir with frost-proof water.
  • Fig. 2 & 3 show an instance composed by three concentric copper tubes.
  • the receiver (19) must be large enough to contain all of refrigerant in the system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Air Conditioning Control Device (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • External Artificial Organs (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
EP01911456A 2000-03-13 2001-03-05 Regulator with receiver for refrigerators and heatpumps Expired - Lifetime EP1264150B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK200000398A DK174179B1 (da) 2000-03-13 2000-03-13 Kredsløb med kapillarrørsdrøvling og kølemiddelbeholder
DK200000398 2000-03-13
PCT/DK2001/000142 WO2001073360A1 (en) 2000-03-13 2001-03-05 Regulator with receiver for refrigerators and heatpumps

Publications (2)

Publication Number Publication Date
EP1264150A1 EP1264150A1 (en) 2002-12-11
EP1264150B1 true EP1264150B1 (en) 2005-08-31

Family

ID=8159318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01911456A Expired - Lifetime EP1264150B1 (en) 2000-03-13 2001-03-05 Regulator with receiver for refrigerators and heatpumps

Country Status (8)

Country Link
US (1) US20030097856A1 (da)
EP (1) EP1264150B1 (da)
AT (1) ATE303566T1 (da)
AU (1) AU2001240471A1 (da)
DE (1) DE60113072T2 (da)
DK (1) DK174179B1 (da)
NO (1) NO325992B1 (da)
WO (1) WO2001073360A1 (da)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2836542B1 (fr) * 2002-02-26 2007-06-29 Valeo Climatisation Organe de detente pour boucle de climatisation de vehicule
EP1422486A3 (en) * 2002-11-25 2004-11-17 Tempia Co., Ltd. Combined regeneration heating and cooling system
DK176026B1 (da) * 2003-09-22 2005-12-19 Lars Zimmermann Kredslöb med to-trins kapillarrörsdrövling og kölemeddelbeholder
KR101099899B1 (ko) 2005-02-18 2011-12-28 스미토모 덴키 고교 가부시키가이샤 극저온 케이블의 순환 냉각 시스템
DK176868B1 (da) * 2008-09-16 2010-02-01 Lars Christian Wulf Zimmermann Symmetrisk kølemiddelregulator for oversvømmet multikanalfordamper
US20140116083A1 (en) * 2012-10-29 2014-05-01 Myungjin Chung Refrigerator
JP2020034248A (ja) * 2018-08-31 2020-03-05 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． 冷蔵庫
WO2020045868A1 (en) 2018-08-31 2020-03-05 Samsung Electronics Co., Ltd. Refrigerator
CN114165964A (zh) * 2020-08-21 2022-03-11 苏州三星电子有限公司 串并联冰箱及其管路组件

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2183346A (en) * 1937-04-01 1939-12-12 Westinghouse Electric & Mfg Co Refrigeration apparatus and method
US2482171A (en) * 1945-10-04 1949-09-20 Gen Engineering & Mfg Company Flow control device for refrigeration apparatus
US2530648A (en) * 1946-09-26 1950-11-21 Harry Alter Company Combination accumulator, heat exchanger, and metering device for refrigerating systems
US2520045A (en) * 1947-01-09 1950-08-22 Carrier Corp Refrigeration system, including capillary tube
US2797554A (en) * 1954-01-06 1957-07-02 William J Donovan Heat exchanger in refrigeration system
US2956421A (en) * 1957-04-04 1960-10-18 Borg Warner Capillary refrigerating systems
US4313315A (en) * 1980-02-19 1982-02-02 U.S. Philips Corporation Compressor refrigeration circuits
EP0604593A4 (en) * 1991-09-19 1994-08-17 Mayer Holdings Sa Thermal inter-cooler.

Also Published As

Publication number Publication date
ATE303566T1 (de) 2005-09-15
EP1264150A1 (en) 2002-12-11
DK174179B1 (da) 2002-08-19
WO2001073360A1 (en) 2001-10-04
DE60113072D1 (de) 2005-10-06
NO20024334L (no) 2002-09-11
AU2001240471A1 (en) 2001-10-08
US20030097856A1 (en) 2003-05-29
DE60113072T2 (de) 2006-06-14
NO325992B1 (no) 2008-09-01
NO20024334D0 (no) 2002-09-11
DK200000398A (da) 2001-09-14

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