GB201301403D0 - Flash defrost system - Google Patents

Flash defrost system

Info

Publication number
GB201301403D0
GB201301403D0 GBGB1301403.0A GB201301403A GB201301403D0 GB 201301403 D0 GB201301403 D0 GB 201301403D0 GB 201301403 A GB201301403 A GB 201301403A GB 201301403 D0 GB201301403 D0 GB 201301403D0
Authority
GB
United Kingdom
Prior art keywords
defrost
evaporator
receiver
condenser
refrigerant
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.)
Granted
Application number
GBGB1301403.0A
Other versions
GB2495672B (en
GB2495672A (en
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.)
FRIGESCO Ltd
Original Assignee
FRIGESCO 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 FRIGESCO Ltd filed Critical FRIGESCO Ltd
Publication of GB201301403D0 publication Critical patent/GB201301403D0/en
Publication of GB2495672A publication Critical patent/GB2495672A/en
Application granted granted Critical
Publication of GB2495672B publication Critical patent/GB2495672B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • 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
    • F25B2400/16—Receivers

Abstract

A vapour compression refrigeration system includes a compressor (1) arranged to re-circulate refrigerant through a condenser (2), an expansion device (4) and an evaporator (5). To achieve rapid thermodynamically efficient defrosting of the evaporator, hot refrigerant from the condenser is stored in a defrost receiver (6) before passing through the expansion device (4). In a defrost phase, a valve arrangement (7-10) forms a closed defrost circuit connecting the evaporator (5) to the defrost receiver (6) via defrost valve (10) to allow hot fluid to pass from the defrost receiver to the evaporator and liquid refrigerant in the evaporator flows to the defrost receiver (6) via drain valve (9). In a pre-defrost phase, the valve arrangement closes the fluid input to the evaporator (5) and the compressor operates to partially evacuate the evaporator before the evaporator is connected to the defrost receiver, so that flash flooding of the evaporator with hot vapour occurs. A phase change medium (11) may be included to store heat from the condenser output and return it to the evaporator during defrost. Additional heat may be supplied to the defrost liquid to further increase the defrost speed.
GB1301403.0A 2011-02-11 2012-02-10 Flash defrost system Expired - Fee Related GB2495672B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1102485.8A GB2487975A (en) 2011-02-11 2011-02-11 Flash defrost system
PCT/GB2012/050293 WO2012107773A2 (en) 2011-02-11 2012-02-10 Flash defrost system

Publications (3)

Publication Number Publication Date
GB201301403D0 true GB201301403D0 (en) 2013-03-13
GB2495672A GB2495672A (en) 2013-04-17
GB2495672B GB2495672B (en) 2013-12-25

Family

ID=43859329

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1102485.8A Withdrawn GB2487975A (en) 2011-02-11 2011-02-11 Flash defrost system
GB1301403.0A Expired - Fee Related GB2495672B (en) 2011-02-11 2012-02-10 Flash defrost system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1102485.8A Withdrawn GB2487975A (en) 2011-02-11 2011-02-11 Flash defrost system

Country Status (12)

Country Link
US (1) US20130312437A1 (en)
EP (1) EP2673578A2 (en)
JP (1) JP5934257B2 (en)
KR (1) KR20140007891A (en)
CN (1) CN103429974A (en)
AU (1) AU2012215130B2 (en)
BR (1) BR112013020258A2 (en)
CA (1) CA2827053A1 (en)
GB (2) GB2487975A (en)
MX (1) MX2013009155A (en)
RU (1) RU2582729C2 (en)
WO (1) WO2012107773A2 (en)

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EP2868997B1 (en) 2013-11-04 2020-09-30 LG Electronics Inc. Refrigerator
US20160187014A1 (en) * 2014-12-29 2016-06-30 Hy-Save Limited Air Conditioning with Auxiliary Thermal Storage
GB201507920D0 (en) * 2015-05-08 2015-06-24 Frigesco Ltd Cool gas defrost circuit using heat storage material
CN104949409B (en) * 2015-07-13 2017-03-29 金鑫 A kind of flexible air source heat pump defrosting system and method that need not start compressor
EP3165852B1 (en) 2015-11-09 2021-06-09 Mitsubishi Electric Corporation Anti-frost heat pump
WO2017157512A1 (en) * 2016-03-16 2017-09-21 Liebherr-Hausgeräte Lienz Gmbh Refrigerator and/or freezer device
SE542633C2 (en) * 2016-05-17 2020-06-23 Lars Friberg Evolution Ab Device for rapid defrosting without compressor stop of the evaporator in an air-to-water heat pump and for running the heat pump at extremely low evaporator temperatures and at extremely low loads
GB201610977D0 (en) 2016-06-23 2016-08-10 Sunamp Ltd A thermal energy storage system
CN106352415A (en) * 2016-10-26 2017-01-25 广东美的制冷设备有限公司 Heat accumulation and defrosting air-conditioning system and control method thereof
CN106500179A (en) * 2016-10-26 2017-03-15 广东美的制冷设备有限公司 A kind of air conditioning system of accumulation of heat defrost and control method
CN106705516B (en) * 2017-01-27 2023-04-28 广州市粤联水产制冷工程有限公司 Progressive liquid discharge device and hot gas defrosting system
CA2995799C (en) 2017-02-17 2023-04-04 National Coil Company Reverse cycle defrost refrigeration system and method
CN110662474B (en) * 2017-05-23 2023-04-14 美诺两合公司 Cleaning device and method for operating a cleaning device
US9989271B1 (en) 2017-08-14 2018-06-05 Calvin Becker Air conditioning with thermal storage
US10317123B1 (en) 2018-04-16 2019-06-11 Sub-Zero, Inc. Shared evaporator system
KR101919336B1 (en) * 2018-07-27 2018-11-19 (주)삼공사 Cooling unit using isobutane as refrigerant
US10907879B2 (en) 2018-12-31 2021-02-02 Thermo King Corporation Methods and systems for energy efficient defrost of a transport climate control system evaporator
US11137185B2 (en) * 2019-06-04 2021-10-05 Farrar Scientific Corporation System and method of hot gas defrost control for multistage cascade refrigeration system
CN110260582A (en) * 2019-06-05 2019-09-20 合肥华凌股份有限公司 Defrosting system and refrigeration equipment with the defrosting system
US11402145B1 (en) 2020-03-24 2022-08-02 Sub-Zero Group, Inc. Split air flow system
CN112197403A (en) * 2020-08-28 2021-01-08 珠海格力电器股份有限公司 Air cooler defrosting control method and device, storage medium and air cooler
US11959690B2 (en) 2021-12-17 2024-04-16 Trane International Inc. Thermal storage device for climate control system

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Also Published As

Publication number Publication date
AU2012215130A1 (en) 2013-09-26
KR20140007891A (en) 2014-01-20
AU2012215130B2 (en) 2017-07-27
CN103429974A (en) 2013-12-04
RU2582729C2 (en) 2016-04-27
JP5934257B2 (en) 2016-06-15
US20130312437A1 (en) 2013-11-28
GB2495672B (en) 2013-12-25
WO2012107773A2 (en) 2012-08-16
MX2013009155A (en) 2013-12-06
RU2013141537A (en) 2015-03-20
CA2827053A1 (en) 2012-08-16
GB2487975A (en) 2012-08-15
JP2014505230A (en) 2014-02-27
WO2012107773A3 (en) 2012-11-29
NZ615009A (en) 2014-09-26
WO2012107773A4 (en) 2013-02-28
GB201102485D0 (en) 2011-03-30
EP2673578A2 (en) 2013-12-18
GB2495672A (en) 2013-04-17
BR112013020258A2 (en) 2016-10-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20180210