地热发电简述

目前世界上实际能利用的地热资源很少,主要限于蒸汽田和热水田,这两者统称为地热田。地热蒸汽田以蒸汽为主,温度较高,一般为160℃以上,可将地热蒸汽田的蒸汽直接引入普通汽轮机发电。地热热水田则以热水为主,温度较低,一般为50～160℃,这就需要将地热水中的热能转换成地热蒸汽引入普通汽轮机发电。地热电站既没有燃料运输设备,也没有庞大的锅炉设备,所以也就没有灰渣和烟气对环境的污染,是比较清洁的能源。地热发电站发电后排出的热水,可供诸如采暖、医疗、洗涤、提取化学物质和农业养殖。地热发电成本较水电、火电都低。

The Overview of Geothermal Power Generation

There is little geothermal resources that reality can utilize in the world at present,limited to the steam field and hot paddy field mainly,both are referred to as geothermol power field.Geothermol power steam field rely mainly on steam,relatively high temperature have,more than 160℃ generally,Introduce ground hot vapour steam of field ordinary steam turbine generate electricity directly.Relying mainly on hot water in the paddy field of geothermol power,temperature is relatively low,is generally 50～160℃,it is need that change ground heat energy of hot water into geothermol power steam introduce ordinary steam turbine generate electricity.Neither has not a fuel transporting equipment,nor has huge boiler equipment in the thermal power station of ground,It dont prouduce gray dreg and exhaust gas pollution in environment too,It is clean energy.Geothermol power hot water that power station discharge after generating electricity,can support such as heating,medical treatment,wash,draw chemical material and agriculture cultivate.The cost of electricity generating of geothermol power is lower than the water and electricity,electricity generation by thermal power.