Air Conditioning and Refrigeration System

摘要

A system includes a high side heat exchanger, a modulating valve, a flash tank, and a refrigeration unit. The high side heat exchanger is configured to remove heat from refrigerant. The modulating valve is configured to control the flow of refrigerant from the high side heat exchanger to both a heat exchanger and a flash tank. The flash tank is configured to store refrigerant from the heat exchanger and from the high side heat exchanger. The refrigeration unit is configured to receive refrigerant from the flash tank.

主权项

1. A system comprising:
a high side heat exchanger configured to remove heat from refrigerant; a modulating valve configured to control a flow of refrigerant from the high side heat exchanger to both a second heat exchanger and a flash tank, the modulating valve configured to operate in a first state, a second state, and a third state, wherein:
the modulating valve directs all of the refrigerant flowing through the modulating valve to the second heat exchanger when the modulating valve is operating in the first state;the modulating valve directs all of the refrigerant flowing through the modulating valve to the flash tank when the modulating valve is operating in the second state; andthe modulating valve directs a first portion of the refrigerant flowing through the modulating valve to the second heat exchanger and a second portion of the refrigerant flowing through the modulating valve to the flash tank when the modulating valve is operating in the third state; the flash tank configured to store refrigerant from the second heat exchanger and from the high side heat exchanger; a parallel compressor configured to compress refrigerant from the flash tank and to send the compressed refrigerant to the high side heat exchanger; and a refrigeration unit configured to receive refrigerant from the flash tank.