Internal liquid suction heat exchanger
AssigneeCarrier Corporation
InventorsRichard G. Lord, Charbel Rahhal
Life of this patent
Estimating the term…
Abstract
In one aspect, an evaporator assembly for a refrigeration system is provided. The evaporator assembly includes a pressure vessel having an inlet and an outlet. The outlet is configured to supply refrigerant to a compressor of the refrigeration system. A liquid suction heat exchanger is disposed within the pressure vessel. The liquid suction heat exchanger is configured to receive a liquid refrigerant for heat exchange with the refrigerant in the pressure vessel.
Claims17
An evaporator assembly for a refrigeration system, the evaporator assembly comprising:
- a pressure vessel having an inlet and an outlet, the outlet configured to supply refrigerant to a compressor of the refrigeration system;
- and
- a liquid suction heat exchanger disposed within the pressure vessel, the liquid suction heat exchanger configured to receive a liquid refrigerant for heat exchange with the refrigerant in the pressure vessel.
A refrigeration system comprising:
- a compressor;
- a condenser fluidly coupled to the compressor;
- an evaporator having an inlet and an outlet, the evaporator fluidly coupled between the condenser and the compressor;
- and
- a liquid suction heat exchanger fluidly coupled between the condenser and the evaporator, the liquid suction heat exchanger disposed within the evaporator for heat exchange between liquid refrigerant from the condenser and refrigerant vapor in the evaporator.
A method of increasing suction superheat in a refrigeration system having a compressor, a condenser, an evaporator, and a liquid suction heat exchanger disposed in the evaporator, the method comprising:
- supplying liquid refrigerant from the condenser to the liquid suction heat exchanger;
- cooling the liquid refrigerant in the liquid suction heat exchanger against refrigerant vapor in the evaporator;
- supplying the cooled liquid refrigerant to the evaporator;
- vaporizing and superheating the cooled liquid refrigerant into the refrigerant vapor;
- increasing the superheat of the refrigerant vapor through heat exchange with the liquid refrigerant in the liquid suction heat exchanger;
- and
- supplying the refrigerant vapor to the compressor.
Dependencies are inferred from the claim text.