| 摘要 |
<p>A heating tank and a storage tank are provided to stably and reliably heat water at a high efficiency by using circulation refrigerant of a heat pump. A storage tank(1) comprises a compressor, an expansion valve, and an evaporator. A refrigerant discharge pipe(12) of the compressor is connected to a refrigerant passage inlet(5) of the storage tank. A refrigerant pipe(13), which is connected to a refrigerant passage outlet(6) of the storage tank, is connected to the expansion valve. A refrigerant pipe, which is connected to an outlet of the expansion valve, is connected to the evaporator. A refrigerant inlet pipe of the compressor is connected to an outlet of the compressor.</p> |
