GB1239187A - - Google Patents

Info

Publication number
GB1239187A
GB1239187A GB1239187DA GB1239187A GB 1239187 A GB1239187 A GB 1239187A GB 1239187D A GB1239187D A GB 1239187DA GB 1239187 A GB1239187 A GB 1239187A
Authority
GB
United Kingdom
Prior art keywords
evaporators
hot gas
defrosting
defrosted
valve
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
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 filed Critical
Publication of GB1239187A publication Critical patent/GB1239187A/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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • 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
    • F25B2347/00—Details for preventing or removing deposits or corrosion
    • F25B2347/02—Details of defrosting cycles
    • F25B2347/021—Alternate 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
    • 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
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0411—Refrigeration circuit bypassing means for the expansion valve or capillary tube
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Defrosting Systems (AREA)

Abstract

1,239,187. Refrigerating; defrosting. STREATER INDUSTRIES Inc. 18 Feb., 1970 [19 Feb., 1969], No. 7834/70. Heading F4H. In a vapour compression system having a plurality of evaporators 10, 20, 30, the evaporators are defrosted singly by closing a common liquid supply valve 66 and by feeding hot gas to the evaporator to be defrosted. The hot gas feed is accomplished by closing the relevant one of cold gas return valves 61, 62, 63, and opening the corresponding one of hot gas supply valves 74, 75, 76. Hot gas is condensed in the evaporator undergoing defrosting and the condensate passes through an expansion valve by-pass line 13, 23 or 33 to be fed to the remaining working evaporators. The valve 66 may be provided with a control mechanism 80, 81, 82 which, in the event of the feed pressure to the working evaporators during defrosting becoming too low, overrides the defrost control to admit liquid from a receiver 6. The defrost cycle may be controlled by a timer 88 to allow two hours of normal refrigeration followed by a defrosting operation in which the evaporators are defrosted sequentially.
GB1239187D 1969-02-19 1970-02-18 Expired GB1239187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80051169A 1969-02-19 1969-02-19

Publications (1)

Publication Number Publication Date
GB1239187A true GB1239187A (en) 1971-07-14

Family

ID=25178586

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1239187D Expired GB1239187A (en) 1969-02-19 1970-02-18

Country Status (3)

Country Link
DE (1) DE2006316A1 (en)
FR (1) FR2035305A5 (en)
GB (1) GB1239187A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009076628A2 (en) * 2007-12-13 2009-06-18 Johnson Controls Technology Company Hvac&r system valving
EP2105685A1 (en) * 2007-01-17 2009-09-30 Daikin Industries, Ltd. Refrigerating apparatus
US20120318006A1 (en) * 2010-03-08 2012-12-20 Carrier Corporation Defrost operations and apparatus for a transport refrigeration system
ITMI20131519A1 (en) * 2013-09-13 2015-03-14 Frimont Spa MODULAR ICE MAKING SYSTEM

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT402026B (en) * 1994-09-29 1997-01-27 Gossler Ewald METHOD AND DEVICE FOR COOLING GASES
DE102005018125A1 (en) * 2005-04-20 2006-10-26 Bernhard Wenzel A method for defrosting evaporators in heat pump systems has each evaporator provided with a similar tubular defrost unit by which the evaporators are operated alternately
CN112728849B (en) * 2021-02-01 2024-08-09 珠海格力电器股份有限公司 Freezing and refrigerating device, control method and control device thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2105685A1 (en) * 2007-01-17 2009-09-30 Daikin Industries, Ltd. Refrigerating apparatus
EP2105685A4 (en) * 2007-01-17 2014-09-24 Daikin Ind Ltd Refrigerating apparatus
WO2009076628A2 (en) * 2007-12-13 2009-06-18 Johnson Controls Technology Company Hvac&r system valving
WO2009076623A1 (en) * 2007-12-13 2009-06-18 Johnson Controls Technology Company Hvac&r system with individualized flow control
WO2009076628A3 (en) * 2007-12-13 2009-07-30 Johnson Controls Tech Co Hvac&r system valving
US20120318006A1 (en) * 2010-03-08 2012-12-20 Carrier Corporation Defrost operations and apparatus for a transport refrigeration system
US10072884B2 (en) * 2010-03-08 2018-09-11 Carrier Corporation Defrost operations and apparatus for a transport refrigeration system
ITMI20131519A1 (en) * 2013-09-13 2015-03-14 Frimont Spa MODULAR ICE MAKING SYSTEM
WO2015036381A1 (en) * 2013-09-13 2015-03-19 Frimont S.P.A. Ice production plant
CN106164609A (en) * 2013-09-13 2016-11-23 斯科茨曼制冰系统有限公司 Ice making equipment
CN106164609B (en) * 2013-09-13 2019-05-17 斯科茨曼制冰系统有限公司 Ice making equipment

Also Published As

Publication number Publication date
DE2006316A1 (en) 1970-09-10
FR2035305A5 (en) 1970-12-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees