GB1485583A - Refrigeration system - Google Patents

Refrigeration system

Info

Publication number
GB1485583A
GB1485583A GB648/75A GB64875A GB1485583A GB 1485583 A GB1485583 A GB 1485583A GB 648/75 A GB648/75 A GB 648/75A GB 64875 A GB64875 A GB 64875A GB 1485583 A GB1485583 A GB 1485583A
Authority
GB
United Kingdom
Prior art keywords
line
pressure
valve
condenser
compressor
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
Application number
GB648/75A
Inventor
D Taft
V Smith
N Schumacher
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.)
Emhart Industries Inc
Original Assignee
Emhart Industries Inc
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 Emhart Industries Inc filed Critical Emhart Industries Inc
Publication of GB1485583A publication Critical patent/GB1485583A/en
Expired 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible 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
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors
    • 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
    • F25B2400/22—Refrigeration systems for supermarkets
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity

Abstract

1485583 Refrigerating; defrosting EMHART INDUSTRIES Inc 7 Jan 1975 [8 Jan 1974] 648/75 Heading F4H A refrigeration system comprises a compressor 42, condenser 50 and a receiver 58 connected to the liquid line 54 extending between the condenser and a plurality of evaporators 62, 64 each having an expansion valve, the condenser being exposed to ambient temperature conditions and of sufficient capacity to condense all the gaseous refrigerant from the compressor and there being a pressure responsive valve 56 in the liquid line to assure at least partial flooding of the condenser under normal ambient temperatures. Hot refrigerant gas from the compressor is delivered through a line 100 to a selected evaporator at a pressure exceeding liquid line pressure for defrosting. A discharge pressure sensing line 100 is connected to the receiver and extends to a regulating valve 112 in the compressor discharge line 48, the valve being normally open but is operable to restrict gas flow through the line 48 if pressure falls during defrosting so as to increase the compressor head pressure and the pressure in the receiver and liquid lines through a line 98 and valve 96. The liquid refrigerant in the receiver and liquid line is maintained at a substantially constant pressure less than that of the compressor discharge by a pressure reducing valve 96 in a line 98 between the compressor discharge line and the receiver, which valve is responsive to a pressure below that of the valve 56. A plurality of compressors 40, 42, 44 may be provided to achieve capacity above that under normal ambient temperatures with at least one compressor being inoperative in response to gas pressure in a suction line from the evaporators to the compressors. An additional condenser 76 may be provided for reclaiming heat from the compressed refrigerant, the condenser being selectively connectable in series with the condenser 50.
GB648/75A 1974-01-08 1975-01-07 Refrigeration system Expired GB1485583A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US431757A US3905202A (en) 1974-01-08 1974-01-08 Refrigeration system

Publications (1)

Publication Number Publication Date
GB1485583A true GB1485583A (en) 1977-09-14

Family

ID=23713292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB648/75A Expired GB1485583A (en) 1974-01-08 1975-01-07 Refrigeration system

Country Status (6)

Country Link
US (1) US3905202A (en)
JP (1) JPS558747B2 (en)
BR (1) BR7500064A (en)
CA (1) CA1007062A (en)
DE (1) DE2500303C3 (en)
GB (1) GB1485583A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110094904A (en) * 2019-03-18 2019-08-06 珠海格力电器股份有限公司 Except defrosting system, control method, device and refrigeration equipment

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167102A (en) * 1975-12-24 1979-09-11 Emhart Industries, Inc. Refrigeration system utilizing saturated gaseous refrigerant for defrost purposes
US4012921A (en) * 1976-01-07 1977-03-22 Emhart Industries, Inc. Refrigeration and hot gas defrost system
US4068494A (en) * 1976-01-19 1978-01-17 Kramer Daniel E Power saving capacity control for air cooled condensers
JPS5316941A (en) * 1976-07-30 1978-02-16 Hitachi Ltd Freezer
JPS5316943A (en) * 1976-07-30 1978-02-16 Hitachi Ltd Freezer
CA1062927A (en) * 1978-01-09 1979-09-25 Emhart Industries Refrigeration system utilizing saturated gaseous refrigerant for defrost purposes
US4193781A (en) * 1978-04-28 1980-03-18 Mcquay-Perfex Inc. Head pressure control for heat reclaim refrigeration systems
US4192149A (en) * 1978-09-18 1980-03-11 General Electric Company Post condenser loop case heater controlled by ambient humidity
US4231229A (en) * 1979-03-21 1980-11-04 Emhart Industries, Inc. Energy conservation system having improved means for controlling receiver pressure
US4259848A (en) * 1979-06-15 1981-04-07 Voigt Carl A Refrigeration system
US4507933A (en) * 1980-05-05 1985-04-02 Roman Chapa System combining water heater and refrigeration unit
US4328682A (en) * 1980-05-19 1982-05-11 Emhart Industries, Inc. Head pressure control including means for sensing condition of refrigerant
US4356706A (en) * 1980-08-05 1982-11-02 Ronald Baumgarten Thermally-integrated heat exchanger and refrigerator
US4430866A (en) * 1982-09-07 1984-02-14 Emhart Industries, Inc. Pressure control means for refrigeration systems of the energy conservation type
US4535603A (en) * 1984-07-02 1985-08-20 Emhart Industries, Inc. Highly energy efficient heat reclamation means for food display case refrigeration systems
US4566288A (en) * 1984-08-09 1986-01-28 Neal Andrew W O Energy saving head pressure control system
US4551989A (en) * 1984-11-30 1985-11-12 Gulf & Western Manufacturing Company Oil equalization system for refrigeration compressors
JPS61125569U (en) * 1985-01-21 1986-08-07
US4621505A (en) * 1985-08-01 1986-11-11 Hussmann Corporation Flow-through surge receiver
US4735059A (en) * 1987-03-02 1988-04-05 Neal Andrew W O Head pressure control system for refrigeration unit
DE3721388C1 (en) * 1987-06-29 1988-12-08 Sueddeutsche Kuehler Behr Device for air conditioning the interior of passenger cars
US4750337A (en) * 1987-10-13 1988-06-14 American Standard Inc. Oil management in a parallel compressor arrangement
US4949551A (en) * 1989-02-06 1990-08-21 Charles Gregory Hot gas defrost system for refrigeration systems
US5092134A (en) * 1989-08-18 1992-03-03 Mitsubishi Denki Kabushiki Kaisha Heating and cooling air conditioning system with improved defrosting
US5289699A (en) * 1991-09-19 1994-03-01 Mayer Holdings S.A. Thermal inter-cooler
US5791154A (en) * 1992-12-23 1998-08-11 Schulak; Edward R. Energy transfer system for refrigeration components
US5402651A (en) * 1992-12-23 1995-04-04 Schulak; Edward R. Energy efficient domestic refrigeration system
US5291749A (en) * 1992-12-23 1994-03-08 Schulak Edward R Energy efficient domestic refrigeration system
US5775113A (en) * 1992-12-23 1998-07-07 Schulak; Edward R. Energy efficient domestic refrigeration system
JP3060770B2 (en) * 1993-02-26 2000-07-10 ダイキン工業株式会社 Refrigeration equipment
US5743109A (en) * 1993-12-15 1998-04-28 Schulak; Edward R. Energy efficient domestic refrigeration system
US5964101A (en) * 1996-12-10 1999-10-12 Edward R. Schulak Energy transfer system for refrigerator/freezer components
US5666817A (en) * 1996-12-10 1997-09-16 Edward R. Schulak Energy transfer system for refrigerator/freezer components
US5816063A (en) * 1996-12-10 1998-10-06 Edward R. Schulak Energy transfer system for refrigerator/freezer components
JP3680619B2 (en) * 1999-03-10 2005-08-10 株式会社日立製作所 Refrigeration equipment
US7197886B2 (en) * 2005-04-12 2007-04-03 Lesage Gaetan Heat reclaim refrigeration system and method
EP1734318B1 (en) * 2005-06-13 2009-04-22 Zanotti S.p.A. Installation and process for producing cold and adjusting air temperature, and thermal exchange device usable in such an installation
JP2009139028A (en) * 2007-12-07 2009-06-25 Sanyo Electric Co Ltd Control device and control method for control device
US20130008182A1 (en) * 2009-12-16 2013-01-10 Brian Hrudka Self-contained temperature controlled apparatus
CN103954064B (en) * 2014-04-15 2016-04-13 珠海格力电器股份有限公司 Refrigerating plant
US10890366B2 (en) * 2018-10-16 2021-01-12 Tiax, Llc Systems and methods for making ice

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2874550A (en) * 1955-05-19 1959-02-24 Keeprite Products Ltd Winter control valve arrangement in refrigerating system
US2963877A (en) * 1957-01-24 1960-12-13 Kramer Trenton Co Means for controlling high side pressure in refrigerating systems
US3307369A (en) * 1965-06-29 1967-03-07 Westinghouse Electric Corp Refrigeration system with compressor loading means
US3324673A (en) * 1965-07-19 1967-06-13 Universal American Corp Refrigeration system with check valve
US3350896A (en) * 1966-01-11 1967-11-07 Westinghouse Electric Corp Multiple evaporator refrigeration systems
US3427819A (en) * 1966-12-22 1969-02-18 Pet Inc High side defrost and head pressure controls for refrigeration systems
US3464226A (en) * 1968-02-05 1969-09-02 Kramer Trenton Co Regenerative refrigeration system with means for controlling compressor discharge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110094904A (en) * 2019-03-18 2019-08-06 珠海格力电器股份有限公司 Except defrosting system, control method, device and refrigeration equipment
CN110094904B (en) * 2019-03-18 2020-05-19 珠海格力电器股份有限公司 Defrosting system, control method and device and refrigeration equipment

Also Published As

Publication number Publication date
DE2500303A1 (en) 1975-07-10
CA1007062A (en) 1977-03-22
US3905202A (en) 1975-09-16
JPS50113854A (en) 1975-09-06
JPS558747B2 (en) 1980-03-05
DE2500303C3 (en) 1980-12-18
BR7500064A (en) 1975-11-04
DE2500303B2 (en) 1980-04-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee