Patent ID: 6666040
Filing Date: 2003-12-23
Classification: F24F,F25B

Abstract:
An improved refrigeration system using a refrigerant to transfer heat between air and a liquid, comprising:a primary refrigerant loop including: a refrigerant compressor, said refrigerant compressor having a suction refrigerant inlet and a compressed refrigerant outlet; a reheat coil, said reheat coil having a refrigerant inlet and a refrigerant outlet; a flow-throttling valve, said flow-throttling valve located between said refrigerant compressor outlet and said reheat coil inlet; a first liquid side heat exchanger, said first liquid side heat exchanger having a refrigerant inlet and a refrigerant outlet, a liquid inlet, and a liquid outlet; a second flow-throttling valve, said second flow-throttling valve located between said refrigerant compressor outlet and said first liquid side heat exchanger refrigerant inlet; a head pressure control valve, said head pressure control valve capable of maintaining the outlet pressure of said refrigerant compressor above a desired limit; a second liquid side heat exchanger, said second liquid side heat exchanger having a refrigerant inlet and a refrigerant outlet, a liquid inlet and a liquid outlet; a first restrictor means, said first restrictor means regulating the flow of said refrigerant to said second liquid side heat exchanger; an air side heat exchanger, said air side heat exchanger having a refrigerant inlet and a refrigerant outlet; and a second restrictor means, said second restrictor means regulating the flow of said refrigerant to the air side heat exchanger; and a secondary liquid loop including: said first liquid side heat exchanger, said liquid outlet of said first liquid side heat exchanger communicating with said liquid inlet of said second liquid side heat exchanger.