| 摘要 |
PURPOSE:To obtain a stable heat collecting amount at all times without being affected by the existence, non-existence and fluctuation of sunshine and permit to improve energy saving effect by a method wherein heat collecting operation from other heat sources or an objective, from which heat is to be removed, is permitted. CONSTITUTION:The system is constituted of a compressor unit 1, a refrigerant branching unit 2, a solar heat collecting unit 3, an other heat source heat collecting unit 4 and pipings between these units. Upon solar heat collecting operation, solenoid valves 15, 16 are opened to flow refrigerant gas, discharged out of the compressor 5, into a hot-water heat exchanger 7 through a four-way valve 6 to condense and liquefy it by heating water circulated by a pump 33, thereafter, the refrigerant flows into the solar heat collecting unit 3 through the refrigerant branching unit 2 and collects the solar heat by a collector 21 while the refrigerant is vaporized and flows into the compressor unit 1, thereafter, is sucked into the compressor 5 through the four-way valve 6 and an accumulator 8. When there is no sunshine, the solenoid valve 16 is closed and the same valve 17 is opened to flow the refrigerant into the other heat source heat collecting unit 4 and collect the waste heat of a waste heat collector 27 while the refrigerant is vaporized and flows into the compressor unit 1. |
