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本文介绍的地热利用技术,指水热型地热能的利用,它是来自地球内部核聚变产生的一种能量资源,蕴藏于埋深介于200至4000米之间的地下水中,温度一般在25℃以上。地热水按照温度高低可分为高温地热资源(>150℃)、中温(>90℃且<150℃)、低温地热资源(<90℃)。我国主要以中低温地热为主,目前利用的也主要是中深层(200-4000米)蕴含的中低温地热能。
This article describes the use of geothermal energy, refers to the use of hydrothermal geothermal energy, it is derived from the Earth’s nuclear fusion energy source, contained in the buried depth of between 200 to 4000 meters of groundwater, the temperature is generally 25 ℃ above. Geothermal water can be divided into high-temperature geothermal resources (> 150 ℃), medium temperature (> 90 ℃ and <150 ℃) and low-temperature geothermal resources (<90 ℃) according to the temperature. Mainly to low-temperature geothermal mainly in China, the current use is also mainly in the deep (200-4000 meters) contains low-temperature geothermal energy.