| 北京城区地下热水结垢趋势的判断和分析 |
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| 引用本文： | 于湲,周训,方斌.北京城区地下热水结垢趋势的判断和分析[J].城市地质,2007,2(2):14-18. |
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| 作者姓名： | 于湲 周训 方斌 |
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| 作者单位： | 1. 中国地质大学(北京)水资源与环境工程北京市重点实验室,北京,100083;北京市地质勘察技术院,北京,102218
2. 中国地质大学(北京)水资源与环境工程北京市重点实验室,北京,100083 |
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| 基金项目： | 北京市教育委员会共建课题建设计划(编号:JD104910555)，北京市自然科学基金项目(编号:8042019)的资助 |
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| 摘 要： | 结垢天地下热水供暖系统运行中普遍存在的现象,对地下热水的腐蚀结垢趋势的计算和判断对于整个工艺运行的稳定性至关重要。本文以北京城区地热田10个代表性地热井为例,采用指数(雷兹诺指数和拉申中指数)判断法以及WATCH程序对地下热水的结垢趋势进行计算和判定,结果表明,城区地热田的大部分地下热水有结垢的可能性,导致结垢的主要矿物是方解石和温石棉。
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| 关 键 词： | 地下热水 结垢 地热资源 北京 |
Judgement and Analysis of the Scaling Trend of Thermal Groundwater in Beijing's Urban Geothermal Fields |
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| YU Yuan,ZHOU Xun,FANG Bin.Judgement and Analysis of the Scaling Trend of Thermal Groundwater in Beijing''''s Urban Geothermal Fields[J].City Geology,2007,2(2):14-18. |
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| Authors: | YU Yuan ZHOU Xun FANG Bin |
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| Abstract: | Scaling is a common phenomenon in a heating system using thermal groundwater.It is important to calculate and judge the erosion and scaling trend of thermal groundwater to ensure stable operation of such a system.Water samples taken from 10 representative geother- mal wells in Beijing's urban geothermal fields are examined in this paper.The scaling trend of the thermal groundwater is calculated and judged by the methods of Ryzner's index and Larson's index and the WATCH program.The results show that thermal groundwater in most of the geothermal wells in Beijing's urban areas has a tendency to scale,and calcite and chrysotile are responsible for the scaling. |
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| Keywords: | Thermal groundwater scaling geothermal resources Beijing |
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