METHOD OF MULTI-STAGE FLASH HEAT EXCHANGE UTILIZING HOT GEOTHERMAL WATER

摘要

PURPOSE:To raise the heat exchanging efficiency of a flash type heat exchanger, by preventing silica scaling through employment of an arrangement in which a DC current is passed across anodes inserted into hot geothermal water and cathodes constituted by a hot-water flow restricting section. CONSTITUTION:Anodes 37 are extended through a bottom plate 36 and inserted into hot geothermal water in a flash chamber by the intermediary of insulators 38, while cathodes are formed by an upper plate 31, lower plate 32 and opening controlling damper 33 which constitute together a hot-water flow restricting mechanism. The upper plate 31 and damper 33 are fixed to a partition plate 35 while the lower plate 32 is fixed to the bottom plate 36 respectively by the intermediary of an insulator 34. The upper plate 31 and damper 33 constituting anodes 37 and the lower plate 32 constituting the cathodes are both connected to a DC power source 39.