GB842231A - Improvements in or relating to refrigerating apparatus for foodstuffs - Google Patents

Improvements in or relating to refrigerating apparatus for foodstuffs

Info

Publication number
GB842231A
GB842231A GB36575/57A GB3657557A GB842231A GB 842231 A GB842231 A GB 842231A GB 36575/57 A GB36575/57 A GB 36575/57A GB 3657557 A GB3657557 A GB 3657557A GB 842231 A GB842231 A GB 842231A
Authority
GB
United Kingdom
Prior art keywords
evaporators
pipe
valve
compressors
pipes
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
GB36575/57A
Inventor
William George Gorton Cuddon
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.)
W G G CUDDON Ltd
Original Assignee
W G G CUDDON 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 W G G CUDDON Ltd filed Critical W G G CUDDON Ltd
Priority to GB36575/57A priority Critical patent/GB842231A/en
Publication of GB842231A publication Critical patent/GB842231A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/06—Freezing; Subsequent thawing; Cooling
    • A23B4/07—Thawing subsequent to freezing
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/06—Freezing; Subsequent thawing; Cooling
    • A23B4/066—Freezing; Subsequent thawing; Cooling the materials not being transported through or in the apparatus with or without shaping, e.g. in the form of powder, granules or flakes
    • A23B4/068—Freezing; Subsequent thawing; Cooling the materials not being transported through or in the apparatus with or without shaping, e.g. in the form of powder, granules or flakes with packages or with shaping in the form of blocks or portions
    • 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
    • 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
    • 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
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/30—Quick freezing

Abstract

842,231. Cooling fish etc.; refrigerating. CUDDON, W. G. G. Aug. 13, 1958 [Nov. 23, 1957], No. 36575/57. Class 29 In a plate-type fish &c. freezer having a plurality of banks of plates each bank being cooled by a set of evaporators G, a selected set of evaporators G can be defrosted to free the frozen fish by the means described below while the rest of the sets are still refrigerating. The evaporators G are connected by suction pipes H to a common header/heat exchanger C heated by liquid refrigerant flowing through pipe B from the condenser/receivers A to the branch pipes D feeding the expansion valves F and evaporators G. Header C is connected to compressors L by pipes K and common pipes M join the compressors to the units A. Each pipe H includes a modulating valve J which is wide open during refrigeration. To defrost one set of evaporators G, valve E in the appropriate branch D is closed and the compressors exhaust residual liquid refrigerant from the evaporators. Then valves P are opened and hot gas flows through pipe N from the compressors into the evaporators to defrost them and, through a pipe Q to a space beneath piston J<SP>1</SP> in valve J to move the valve to constricting position thus raising the evaporator pressure. During defrosting, refrigerant condenses in the evaporators and then passes through valve J into header C where it is evaporated by the hot liquid refrigerant in pipe B flowing to the other sets of evaporators.
GB36575/57A 1957-11-23 1957-11-23 Improvements in or relating to refrigerating apparatus for foodstuffs Expired GB842231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB36575/57A GB842231A (en) 1957-11-23 1957-11-23 Improvements in or relating to refrigerating apparatus for foodstuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36575/57A GB842231A (en) 1957-11-23 1957-11-23 Improvements in or relating to refrigerating apparatus for foodstuffs

Publications (1)

Publication Number Publication Date
GB842231A true GB842231A (en) 1960-07-20

Family

ID=10389385

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36575/57A Expired GB842231A (en) 1957-11-23 1957-11-23 Improvements in or relating to refrigerating apparatus for foodstuffs

Country Status (1)

Country Link
GB (1) GB842231A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538515A1 (en) * 1982-12-28 1984-06-29 Daikin Ind Ltd REFRIGERATION EQUIPMENT
EP0155605A2 (en) * 1984-03-21 1985-09-25 Hans Erik Evald Olson Method for defrosting and device for the implementation of said method
WO2023226469A1 (en) * 2022-05-25 2023-11-30 青岛海尔空调电子有限公司 Heat pump air conditioning unit and control method therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538515A1 (en) * 1982-12-28 1984-06-29 Daikin Ind Ltd REFRIGERATION EQUIPMENT
EP0155605A2 (en) * 1984-03-21 1985-09-25 Hans Erik Evald Olson Method for defrosting and device for the implementation of said method
EP0155605A3 (en) * 1984-03-21 1986-08-13 Hans Erik Evald Olson Method for defrosting and device for the implementation of said method
WO2023226469A1 (en) * 2022-05-25 2023-11-30 青岛海尔空调电子有限公司 Heat pump air conditioning unit and control method therefor

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