GB2495672B - Flash defrost system - Google Patents
Flash defrost systemInfo
- Publication number
- GB2495672B GB2495672B GB1301403.0A GB201301403A GB2495672B GB 2495672 B GB2495672 B GB 2495672B GB 201301403 A GB201301403 A GB 201301403A GB 2495672 B GB2495672 B GB 2495672B
- 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.)
- Expired - Fee Related
Links
- 239000003507 refrigerant Substances 0.000 abstract 3
- 239000012530 fluid Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 abstract 1
- 238000010257 thawing Methods 0.000 abstract 1
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
- 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
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Defrosting Systems (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
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.
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 GB201301403D0 (en) | 2013-03-13 |
GB2495672A GB2495672A (en) | 2013-04-17 |
GB2495672B true 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) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9857103B2 (en) * | 2013-11-04 | 2018-01-02 | Lg Electronics Inc. | Refrigerator having a condensation loop between a receiver and an evaporator |
CN104034099B (en) * | 2013-03-08 | 2017-05-17 | 邱国栋 | Refrigerating system with bypass pipeline |
CN104344586A (en) * | 2013-07-26 | 2015-02-11 | 上海铁东电力技术有限公司 | Double-evaporator refrigerating system |
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 |
EP3430329A1 (en) * | 2016-03-16 | 2019-01-23 | 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 |
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 |
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 |
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 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US637005A (en) * | 1898-02-07 | 1899-11-14 | Hans Knudsen | Elevated railway. |
US3677025A (en) * | 1971-01-13 | 1972-07-18 | Borg Warner | Defrosting arrangement and method for a refrigeration system |
DE2913167A1 (en) * | 1978-04-03 | 1979-10-11 | Pet Inc | COOLING DEVICE |
EP0123554A2 (en) * | 1983-04-23 | 1984-10-31 | Daikin Industries, Limited | Refrigeration unit |
WO1993022606A1 (en) * | 1992-04-24 | 1993-11-11 | Khanh Dinh | Passive defrost system using waste heat |
US20030037553A1 (en) * | 2001-08-10 | 2003-02-27 | Thermo King Corporation | Advanced refrigeration system |
CN101338960A (en) * | 2008-08-13 | 2009-01-07 | 哈尔滨工业大学 | Continuous heat supply phase-change energy storage defrosting system |
WO2009034300A1 (en) * | 2007-09-14 | 2009-03-19 | University Of Exeter | An ice making system |
Family Cites Families (25)
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---|---|---|---|---|
US3637005A (en) * | 1970-02-05 | 1972-01-25 | Halstead Ind Inc | Refrigeration defrost system with constant pressure heated receiver |
US3681934A (en) * | 1970-09-11 | 1972-08-08 | Bangor Punta Operations Inc | Refrigeration and defrost system |
JPS5312655U (en) * | 1976-07-14 | 1978-02-02 | ||
US4176526A (en) * | 1977-05-24 | 1979-12-04 | Polycold Systems, Inc. | Refrigeration system having quick defrost and re-cool |
SU1016636A1 (en) * | 1981-11-20 | 1983-05-07 | Московский Специализированный Комбинат Холодильного Оборудования | Refrigerator |
SU1200088A1 (en) * | 1982-04-08 | 1985-12-23 | Предприятие П/Я А-7075 | Device for controlling defrosting of refrigerating machine evaporator |
JPS58142658U (en) * | 1982-10-25 | 1983-09-26 | 株式会社 東洋製作所 | Refrigeration equipment |
US4646537A (en) * | 1985-10-31 | 1987-03-03 | American Standard Inc. | Hot water heating and defrost in a heat pump circuit |
US4646539A (en) * | 1985-11-06 | 1987-03-03 | Thermo King Corporation | Transport refrigeration system with thermal storage sink |
JP2504437B2 (en) * | 1987-01-30 | 1996-06-05 | 株式会社東芝 | air conditioner |
JPH01222173A (en) * | 1988-02-29 | 1989-09-05 | Mitsubishi Electric Corp | Heat pump system |
JPH0387576A (en) * | 1989-08-30 | 1991-04-12 | Mitsubishi Electric Corp | Air conditioner |
CN2156453Y (en) * | 1993-03-12 | 1994-02-16 | 康狄恩 | Defrost device for freezer |
US5694782A (en) * | 1995-06-06 | 1997-12-09 | Alsenz; Richard H. | Reverse flow defrost apparatus and method |
US5755104A (en) * | 1995-12-28 | 1998-05-26 | Store Heat And Produce Energy, Inc. | Heating and cooling systems incorporating thermal storage, and defrost cycles for same |
US5669222A (en) * | 1996-06-06 | 1997-09-23 | General Electric Company | Refrigeration passive defrost system |
JP2000291985A (en) * | 1999-04-07 | 2000-10-20 | Daikin Ind Ltd | Air conditioner |
US7216494B2 (en) * | 2003-10-10 | 2007-05-15 | Matt Alvin Thurman | Supermarket refrigeration system and associated methods |
JP2005249282A (en) * | 2004-03-04 | 2005-09-15 | Sharp Corp | Refrigerator |
US7574869B2 (en) * | 2005-10-20 | 2009-08-18 | Hussmann Corporation | Refrigeration system with flow control valve |
JP2007170758A (en) * | 2005-12-22 | 2007-07-05 | Sanden Corp | Refrigerating device |
CN1858523A (en) * | 2006-04-26 | 2006-11-08 | 高秀明 | Energy storaging defrosting refrigerator |
EP2313712A2 (en) * | 2008-06-27 | 2011-04-27 | Carrier Corporation | Hot gas defrost process |
JP2010260450A (en) * | 2009-05-07 | 2010-11-18 | Nippon Soken Inc | Air conditioner for vehicle |
US8516837B2 (en) * | 2010-08-04 | 2013-08-27 | Manipal University | Defrosting a freezing unit and liquid purification |
-
2011
- 2011-02-11 GB GB1102485.8A patent/GB2487975A/en not_active Withdrawn
-
2012
- 2012-02-10 KR KR1020137023933A patent/KR20140007891A/en not_active Application Discontinuation
- 2012-02-10 JP JP2013553027A patent/JP5934257B2/en not_active Expired - Fee Related
- 2012-02-10 MX MX2013009155A patent/MX2013009155A/en unknown
- 2012-02-10 CN CN2012800085174A patent/CN103429974A/en active Pending
- 2012-02-10 AU AU2012215130A patent/AU2012215130B2/en not_active Ceased
- 2012-02-10 GB GB1301403.0A patent/GB2495672B/en not_active Expired - Fee Related
- 2012-02-10 RU RU2013141537/06A patent/RU2582729C2/en not_active IP Right Cessation
- 2012-02-10 CA CA2827053A patent/CA2827053A1/en not_active Abandoned
- 2012-02-10 BR BR112013020258A patent/BR112013020258A2/en not_active IP Right Cessation
- 2012-02-10 EP EP12709685.7A patent/EP2673578A2/en not_active Withdrawn
- 2012-02-10 US US13/983,794 patent/US20130312437A1/en not_active Abandoned
- 2012-02-10 WO PCT/GB2012/050293 patent/WO2012107773A2/en active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US637005A (en) * | 1898-02-07 | 1899-11-14 | Hans Knudsen | Elevated railway. |
US3677025A (en) * | 1971-01-13 | 1972-07-18 | Borg Warner | Defrosting arrangement and method for a refrigeration system |
DE2913167A1 (en) * | 1978-04-03 | 1979-10-11 | Pet Inc | COOLING DEVICE |
EP0123554A2 (en) * | 1983-04-23 | 1984-10-31 | Daikin Industries, Limited | Refrigeration unit |
WO1993022606A1 (en) * | 1992-04-24 | 1993-11-11 | Khanh Dinh | Passive defrost system using waste heat |
US20030037553A1 (en) * | 2001-08-10 | 2003-02-27 | Thermo King Corporation | Advanced refrigeration system |
WO2009034300A1 (en) * | 2007-09-14 | 2009-03-19 | University Of Exeter | An ice making system |
CN101338960A (en) * | 2008-08-13 | 2009-01-07 | 哈尔滨工业大学 | Continuous heat supply phase-change energy storage defrosting system |
Also Published As
Publication number | Publication date |
---|---|
WO2012107773A3 (en) | 2012-11-29 |
GB2487975A (en) | 2012-08-15 |
JP2014505230A (en) | 2014-02-27 |
WO2012107773A2 (en) | 2012-08-16 |
BR112013020258A2 (en) | 2016-10-18 |
AU2012215130A1 (en) | 2013-09-26 |
GB201301403D0 (en) | 2013-03-13 |
EP2673578A2 (en) | 2013-12-18 |
JP5934257B2 (en) | 2016-06-15 |
MX2013009155A (en) | 2013-12-06 |
NZ615009A (en) | 2014-09-26 |
WO2012107773A4 (en) | 2013-02-28 |
US20130312437A1 (en) | 2013-11-28 |
CA2827053A1 (en) | 2012-08-16 |
GB201102485D0 (en) | 2011-03-30 |
KR20140007891A (en) | 2014-01-20 |
AU2012215130B2 (en) | 2017-07-27 |
RU2582729C2 (en) | 2016-04-27 |
RU2013141537A (en) | 2015-03-20 |
CN103429974A (en) | 2013-12-04 |
GB2495672A (en) | 2013-04-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20180210 |