摘要
在地热发电或直接利用过程中,与地热流体(液体或蒸汽)接触的设备、管道或管件存在着腐蚀和结垢现象,往往成为地热开发利用的技术瓶颈。因此,开展地热流体的腐蚀与结垢控制技术研究至关重要。本文主要分析了近年来国内外在地热流体的腐蚀和结垢控制方面的研究进展,包括选材、涂层、流体预处理、化学添加剂等控制方法,并提出了进一步的研究方向,包括全面的地热流体腐蚀结垢趋势预测及地球化学模拟,结垢机理研究,涂层和基底的结合力和耐久性研究,阴极保护以及复合控制方法开发等。
Corrosion and scaling often occur in the plant equipments, pipes and fittings that contact geothermal water orvapor in the geothermal energy utilization including power generation and direct exploration. Corrosion and scaling areusually the bottleneck problems which are very difficult to overcome. Hence, mechanism and control technique researcheson the corrosion and scaling of geothermal fluids are of great practical significance. Recent research developments on thecontrol or inhibition technologies of corrosion and scaling in geothermal fluid environments were summarized in this paper.Related contents include material selections of corrosion resistance and antifouling, coating layers, fluid pretreatments andchemical additives. Further research directions were suggested. The important areas are the studies on the predictions ofcorrosion and scaling trends of more geothermal fluids and geochemical chemistry simulation, scaling mechanisms ingeothermal fluids, combination forces between coating layers and substrates, cathodic protection and corrosion and scalinghybrid inhibition techniques, etc.
出处
《新能源进展》
2015年第1期38-46,共9页
Advances in New and Renewable Energy
基金
国家高技术研究发展计划项目(2012AA053001)
天津市应用基础及前沿技术研究计划重点项目(09JCZDJC24100)
关键词
地热流体
腐蚀
污垢
控制
geothermal fluid
corrosion
scaling
inhibition
