Device for preventing vaporization in discharging pipe in pump for pumping-up underground hot water
专利汇可以提供Device for preventing vaporization in discharging pipe in pump for pumping-up underground hot water专利检索，专利查询，专利分析的服务。并且PURPOSE:To prevent a clogging in the discharging pipe with crystalline material by a method wherein a by-pass line is arranged between a gas-phase part in a production well and a discharging pipe downstream of a check valve and the gas in the production well is fed into the discharging pipe when the pressure in the discharging pipe is decreased under a stopped condition of the hot water pump. CONSTITUTION:A primary equipment for communicating hot water therethrough in a closed Rankyn cycle of thermal engine keeps a pressure in such a way as the hot water maintains a liquid phase by a holding means 19. In case that an inner pressure in a discharging pipe 15 is decreased below the pressure of the gas phase 30 in the production well 1, if the check valve 14 shows a certain leakage, the hot water in the discharging pipe 15 is leaked at the check valve 14, returned back through the hot water pump 12 and back to the liquid phase 11. The inside of the discharging pipe 15 has a pressure decreased and the vaporized gas of the hot water from the gas phase 30 is flowed through the check valve 31 in the bypass pipe 32 and enters into the discharging pipe 15 as indicated by an arrow. This action is performed without being any relation with the opening or closing of the partition valve 16, the hot water is vaporized from the liquid surface of the hot water flowing down the discharging pipe 15 and so the space having the liquid surface dropped is not fulfilled with the gas.，下面是Device for preventing vaporization in discharging pipe in pump for pumping-up underground hot water专利的具体信息内容。
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