Method and apparatus for recovering and purifying refrigerant
Patent
·
OSTI ID:7242813
This patent describes a method for recovering compressible refrigerant from a refrigeration system, and, delivering the recovered refrigerant to a refrigeration storage means. It comprises withdrawing refrigerant from a refrigeration system; compressing the withdrawn refrigerant in a compressor to form a high pressure gaseous refrigerant; condensing the high pressure gaseous refrigerant to form liquid refrigerant; delivering the liquid refrigerant to the storage means; determining the pressure ratio across the compressor; monitoring the determined pressure ratio; stopping the withdrawal of refrigerant from the refrigeration system when the monitored pressure ratio exceeds a predetermined value; withdrawing refrigerant from the storage means; compressing the refrigerant withdrawn from the storage means in the same compressor used to compress refrigerant withdrawn from the refrigeration system; condensing the compressed refrigerant withdrawn from the storage means; expanding the condensed refrigerant withdrawn from the storage means; expanding the condensed refrigerant withdrawn from the storage means; delivering the expanded refrigerant withdrawn from the storage means back to the storage means to thereby cool the storage means.
- Assignee:
- Carrier Corp., Syracuse, NY (United States)
- Patent Number(s):
- US 5127232; A
- Application Number:
- PPN: US 7-612643
- OSTI ID:
- 7242813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320106 -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
COMPRESSORS
CONTROL
COOLING SYSTEMS
FLUIDS
HEAT EXCHANGERS
MANAGEMENT
MATERIALS RECOVERY
PROCESSING
PURIFICATION
REFRIGERANTS
STORAGE FACILITIES
TEMPERATURE CONTROL
WASTE MANAGEMENT
WASTE PROCESSING
WORKING FLUIDS
320106 -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
COMPRESSORS
CONTROL
COOLING SYSTEMS
FLUIDS
HEAT EXCHANGERS
MANAGEMENT
MATERIALS RECOVERY
PROCESSING
PURIFICATION
REFRIGERANTS
STORAGE FACILITIES
TEMPERATURE CONTROL
WASTE MANAGEMENT
WASTE PROCESSING
WORKING FLUIDS