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WO1994017343B1 - Improvements relating to absorption refrigerators - Google Patents

Improvements relating to absorption refrigerators

Info

Publication number
WO1994017343B1
WO1994017343B1 PCT/GB1994/000160 GB9400160W WO9417343B1 WO 1994017343 B1 WO1994017343 B1 WO 1994017343B1 GB 9400160 W GB9400160 W GB 9400160W WO 9417343 B1 WO9417343 B1 WO 9417343B1
Authority
WO
WIPO (PCT)
Prior art keywords
evaporator
ejector
refrigerant vapour
absorber
generator
Prior art date
Application number
PCT/GB1994/000160
Other languages
French (fr)
Other versions
WO1994017343A1 (en
Filing date
Publication date
Priority claimed from GB939301639A external-priority patent/GB9301639D0/en
Application filed filed Critical
Priority to EP94904729A priority Critical patent/EP0680588B1/en
Priority to US08/500,941 priority patent/US5673566A/en
Priority to JP6516832A priority patent/JP3043811B2/en
Priority to DE69401423T priority patent/DE69401423T2/en
Priority to AU58653/94A priority patent/AU5865394A/en
Publication of WO1994017343A1 publication Critical patent/WO1994017343A1/en
Publication of WO1994017343B1 publication Critical patent/WO1994017343B1/en

Links

Abstract

The invention relates to a pump and refrigeration system including an evaporator (3) from which refrigerant vapour is withdrawn by an absorber (4) and absorbent is recharged by a generator (1). Further, a condenser (2) is provided between the generator (1) and the evaporator (3) so that refrigerant vapour from the generator (1) can be condensed prior to being returned to the evaporator (3). In addition, the system is provided with an ejector (8) which is positioned downstream of the evaporator (3) so as to withdraw refrigerant vapour from same and upstream of the condenser (2) so that said withdrawn refrigerant vapour passes through the ejector (8) to the condenser (2). Thus in the system of the invention both an absorber (4) and ejector (8) withdraw refrigerant vapour from the evaporator (3) thus enhancing the efficiency of the system and further refrigerant vapour passing through the ejector (8) is delivered directly to a condenser (2) thus reducing the burden on the absorber (4).

Claims

AMENDED CLAIMS[received by the International Bureau on 20 July 1994 (20.07.94); original claim 1 amended; other claims unchanged (2 pages)]
1. A heat pump and refrigeration system comprising; a generator for producing heat to power the system; a condenser for rejecting heat from the system; an evaporator for effecting heat exchange with an environment; an absorber for extracting refrigerant vapour from the evaporator; and an ejector for extracting refrigerant vapour from said evaporator characterized in that; the ejector is positioned downstream of the evaporator and upstream of the condenser so that refrigerant vapour extracted from said evaporator by the ejector, passes through the ejector, before being delivered to the condenser.
2. A system according to Claim 1 wherein the ejector is further positioned downstream of the generator so that refrigerant vapour issuing from the generator passes through the ejector and so brings about entrainment of refrigerant vapour from the evaporator.
3. A system according to Claim 1 or 2 wherein a circuit is created so that all refrigerant vapour passes through the evaporator and then a fraction of that vapour leaves the evaporator and passes to the ejector and the remaining fraction leaves the evaporator and passes to the absorber.
4. A system according to any preceding Claim wherein there is further provided a separator positioned between the generator and the absorber so that absorbent returning from the generator to the absorber passes through the separator and so releases refrigerant vapour.
5. A system according to Claim 4 wherein said separator is in fluid connection with said condenser so that said refrigerant vapour yield by the absorbent passes from the separator to the condenser.
6. A system according to any preceding Claim wherein there is further provided an ejector-economiser which is positioned downstream of the ejector and which is provided with a feed-line which draws absorbent from the absorber to the economiser and then delivers the absorbent, after passage through the economiser, to the generator.
7. A system according to Claim 6 wherein the feed-line is provided downstream of the absorber so that absorbent leaving the absorber on its way to the generator is in part diverted so as to pass through the economiser.
PCT/GB1994/000160 1993-01-27 1994-01-27 Improvements relating to absorption refrigerators WO1994017343A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP94904729A EP0680588B1 (en) 1993-01-27 1994-01-27 Absorption heat pump and refrigeration system
US08/500,941 US5673566A (en) 1993-01-27 1994-01-27 Absorption refrigerators
JP6516832A JP3043811B2 (en) 1993-01-27 1994-01-27 Improvements on absorption refrigeration equipment
DE69401423T DE69401423T2 (en) 1993-01-27 1994-01-27 Absorption cooling and heat pump system
AU58653/94A AU5865394A (en) 1993-01-27 1994-01-27 Improvements relating to absorption refrigerators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9301639.2 1993-01-27
GB939301639A GB9301639D0 (en) 1993-01-27 1993-01-27 Improvements relating to absorption refrigerators

Publications (2)

Publication Number Publication Date
WO1994017343A1 WO1994017343A1 (en) 1994-08-04
WO1994017343B1 true WO1994017343B1 (en) 1994-09-15

Family

ID=10729435

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1994/000160 WO1994017343A1 (en) 1993-01-27 1994-01-27 Improvements relating to absorption refrigerators

Country Status (8)

Country Link
US (1) US5673566A (en)
EP (1) EP0680588B1 (en)
JP (1) JP3043811B2 (en)
AT (1) ATE147500T1 (en)
AU (1) AU5865394A (en)
DE (1) DE69401423T2 (en)
GB (1) GB9301639D0 (en)
WO (1) WO1994017343A1 (en)

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IL177020A0 (en) * 2006-07-23 2006-12-10 Totec Ltd Top Technologies Absorption cooling system
EP2207890A4 (en) * 2007-10-05 2010-12-15 Barofold Inc High pressure treatment of aggregated interferons
US10101059B2 (en) 2007-11-27 2018-10-16 The Curators Of The University Of Missouri Thermally driven heat pump for heating and cooling
EP2370753A1 (en) * 2008-12-03 2011-10-05 Andrews Power Australia Ltd Cooling method and apparatus
US8763408B2 (en) * 2009-10-01 2014-07-01 The Curators Of The University Of Missouri Hybrid thermoelectric-ejector cooling system
US8839635B2 (en) 2010-03-18 2014-09-23 Thermax Limited High efficiency double-effect chiller heater apparatus
CN103017399A (en) * 2012-12-14 2013-04-03 浙江大学 Two-level absorption refrigeration device with injector
CN104154675B (en) * 2014-09-05 2016-04-20 哈尔滨工业大学 A kind of lithium bromide jet suction type cooling cycle system of condensation boosting
CN104676958B (en) * 2015-02-03 2017-03-15 北京建筑大学 A kind of jet suction type compound-refrigerating and source pump and its working method
CN106705487A (en) * 2017-02-23 2017-05-24 大连冷冻机股份有限公司 Carbon dioxide/ammonia condensation and evaporation module
US11221161B1 (en) * 2018-07-03 2022-01-11 Kalindha Rashmi LLC Heat-pump system with combined vapor expansion-compression stages and single-effect vapor absorption unit
US10612821B1 (en) 2018-07-03 2020-04-07 Kalindha Rashmi LLC Heat-pump system with combined vapor expansion-compression stages and single-effect vapor absorption unit
CN111023623B (en) * 2019-12-05 2022-02-08 北京热科能源技术研究有限公司 Low-temperature heat source absorption heat pump circulating system
KR102268283B1 (en) * 2020-01-06 2021-06-22 엘지전자 주식회사 Ejector and an Absorption type cooler and heater including the same
CN115789986B (en) * 2023-01-30 2023-05-23 安徽普泛能源技术有限公司 Repressurization vaporization absorption refrigeration system and cold and hot state starting method and technology thereof

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