SOIL HEAT SOURCE HEAT PUMP SYSTEM AND ITS OPERATION METHOD

摘要

PROBLEM TO BE SOLVED: To prevent the thermal deterioration and the environmental breakage of soil and an aquifer, by heating and cooling a heat medium regardless of the heat demand of cooling and heating, using the heat medium circulating within the heat exchange pipe buried in soil as the heat source of a heat pump. ;SOLUTION: In a heat exchange pipe 5 buried in soil, the heat medium having exchanged heat with soil flows in the heat exchanger 2 on heat source side of a heat pump 1, and returns again to the heat exchange pipe 5 after heat exchange with the refrigerant of the heat pump. A heat medium heater and cooler is connected to the heat medium pipe 10, and a specified quantity of heat medium is led for heating and cooling by the operation of a valve, a control valve, etc. The heat demand place is supplied with hot heat and cold heat through a heat supply pipe 11 connected to the heat exchanger 3 on output side of the heat pump 1. As a heater, there are, for example, a heating tower, and a heat exchanger by the waste heat of a factory or solar heat, and as a cooler, for example, a cooling tower or a heat changer with cold heat of an LNG evaporator is used.;COPYRIGHT: (C)1999,JPO