| 摘要 |
PURPOSE:To contrive an improvement in carrying performance of heat by preventing vapor of a working liquid in the inside of a liquid storage tank from condensing at the time of recovery of the working liquid into a generator, by providing a heat insulating material coating the inside of the liquid storage tank. CONSTITUTION:The inside of a liquid storage tank 7 is coated with a heat insulating material 14. When a collector 1 is heated through insolation, a working liquid 12 is boiled, evaporated, and fed to a heat exchanger 3 through a feed pipe 5 with pressure, cooled by making heat of the liquid radiate to water in a heat exchanger tank 2 for hot water supply and streamed into the liquid storage tank 7 through a return pipe 8. When the working liquid 12 is streamed into the liquid storage tank 7 and a liquid level becomes higher than a predetermined value H, a control valve 10 is made into an open state by a controller 13 and high-temperature vapor in the collector 1 is led to the liquid storage tank 7 by a communication pipe 11. As an inner wall of the liquid storage tank 7 is coated with the heat insulating material 14, the high-temperature vapor is neither cooled nor condensed. With this construction, pressure of the collector 1 is led normally into the liquid storage tank 7, recovery of the working liquid is performed smooth, carrying performance of heat is improved, the low-temperature working liquid is recovered to the collector 1, a heat collecting temperature is declined and heat collecting efficiency is improved. |
