前言利用地下热水发电是国内外正在从事的一项研究课题,是开发利用丰富的地热资源的一个方面。一座地下热水电站,需要很多换热设备,如蒸发器、冷凝器、预热器等,其中以冷凝器所需换热面积为最大。从国内已建成的几座地下热水电站看,换热设备的投资与金属消耗一般约占整个电站总投资与总金属消耗的一半以上(不算地质勘探与钻井费用)。因此,换热设备的投资与其金属消耗已成为建造地下热水电站是否经济的决定性因素之一。 Preface The use of underground hot water power generation is a research project that is being carried out at home and abroad, is an aspect of the development and utilization of rich geothermal resources. An underground hot water station needs a lot of heat transfer equipment, such as evaporators, condensers, preheaters, etc., of which the heat exchanger area required for the condenser is the largest. Looking at several underground hydropower stations in China, the investment in heat exchange equipment and the metal consumption generally account for more than half of the total investment and total metal consumption of the entire power plant (not including geological exploration and drilling costs). Therefore, the investment in heat exchange equipment and its metal consumption have become one of the decisive factors in determining whether an underground cogeneration plant is economically viable.