Heat pump type heater
专利汇可以提供Heat pump type heater专利检索，专利查询，专利分析的服务。并且PURPOSE: To make it possible to prevent a refrigerant from being overheated by simple means in the operation of a heat pump type heating that uses hot water as its heat source, by by-passing hot water when the temperaure of hot water at the outlet of a water-refrigerant heat exchanger is high.
CONSTITUTION: The water-refrigerant heat exchanger of a refrigeration cycle acts as an evaporator during heating operation when it is cold. The hot water from a hot water reservoir 1 which has been heated by solar heat or the like is heated by a water heater 7 if the temperature is low, and passes through the heat exchanger 4 and a by-pass pipe 13, then the streams meet at a three-way valve 9. The three-way valve 9 can alter the passages of hot water depending upon the detected temperature of the hot water at the outlet of the heat exchanger 4 such that when the temperatur is low, the by-pass pipe 13 is closed, and when it is high, the by-pass pipe 13 is opened to prevent the refrigerant being overheated. Even when said temprature is high, since a small amount of hot water flows through the heat exchaner 4, it will be prevented from freezing.
COPYRIGHT: (C)1982,JPO&Japio，下面是Heat pump type heater专利的具体信息内容。
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