Dry suction industrial ammonia refrigeration system
First Claim
1. A dry suction refrigeration system, comprising:
- an evaporator fed with liquid refrigerant and discharging a vapor refrigerant;
an accumulator for accumulating vapor refrigerant discharged from the evaporator;
a compressor receiving vapor refrigerant from the accumulator, for compressing the vapor refrigerant;
a condenser receiving compressed vapor refrigerant from the compressor, for condensing it into liquid refrigerant;
a receiver receiving the liquid refrigerant from the condenser and supplying it to the evaporator;
said evaporator including an electronic expansion valve operable to continuously monitor the evaporation of liquid refrigerant in the evaporator and to continuously adjust the flow of liquid refrigerant to the evaporator, to cause complete vaporization of the liquid refrigerant; and
an electronic expansion valve located to monitor vapor refrigerant temperature entering the accumulator and operable to inject liquid refrigerant from the receiver into the vapor refrigerant to selectively lower the temperature thereof.
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Abstract
A dry suction refrigeration system includes an evaporator fed with liquid refrigerant which discharges a vapor refrigerant to an accumulator. A compressor receives vapor refrigerant from the accumulator and compressies the vapor refrigerant. A condenser receives the compressed vapor refrigerant from the compressor and transforms the refrigerant into liquid refrigerant. A receiver receives the liquid refrigerant from the condenser and supplies it to the evaporator. The evaporator includes an electronic expansion valve operable to continuously monitor the evaporation of liquid refrigerant in the evaporator and to continuously meter the flow of liquid refrigerant, so as to cause a complete vaporization of the liquid refrigerant. Because the liquid refrigerant is completely evaporated, the vapor refrigerant is moved through the system by pressure differential alone.
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Citations
14 Claims
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1. A dry suction refrigeration system, comprising:
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an evaporator fed with liquid refrigerant and discharging a vapor refrigerant; an accumulator for accumulating vapor refrigerant discharged from the evaporator; a compressor receiving vapor refrigerant from the accumulator, for compressing the vapor refrigerant; a condenser receiving compressed vapor refrigerant from the compressor, for condensing it into liquid refrigerant; a receiver receiving the liquid refrigerant from the condenser and supplying it to the evaporator; said evaporator including an electronic expansion valve operable to continuously monitor the evaporation of liquid refrigerant in the evaporator and to continuously adjust the flow of liquid refrigerant to the evaporator, to cause complete vaporization of the liquid refrigerant; and an electronic expansion valve located to monitor vapor refrigerant temperature entering the accumulator and operable to inject liquid refrigerant from the receiver into the vapor refrigerant to selectively lower the temperature thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification