HARNESSING DEVICE OF GEOTHERMAL HOT WATER

摘要

PURPOSE:To obtain a distilled water and a hot water for room heating by utilizing for the heat source of a heat exchanger a steam generated through a flash evaporation of a geothermal hot water while being fluidized in a multistage flash equipment. CONSTITUTION:As a flash equipment 1, a plurality of flash chambers 3A-3F are formed and orifices 5A-5F are provided on the outer wall 14 and the partition 2 thereof. A geothermal hot water passes through the flash chambers 3A-3F from the orifices 5A-5F sequentially and evaporated by a flash evaporation with a difference in the pressure. For example, after the removal of fine drops with a demister 6B, the steam 30 generated in the second stage flash chamber 3B undergoes a heat exchange with a river water 12 by means of a heat exchanger 11B and the condensed water is collected to a receptacle 7B as a distilled water 10. The river water 12 heated by the heat exchange is released from an upper nozzle 20 of a deaerator 17 and directly brought into contact with the steam generated in the first stage flash chamber 3A and after the oxygen dissolved is dissipated into the air, is transported for room heating with a hot water feeding pipe 19.