大型太阳能热发电厂镜场雨水排水设计

Rainwater Drainage Design for Solar Field of Large Solar Thermal Power Plant

针对占地面积大、场地地形起伏的沙漠地区大型光热电厂镜场在短时强降雨工况的雨水排水问题,通过研究某光热电厂槽式光热电站和塔式光热电站不同区域的水文条件、下渗性能及地质条件,根据各区域的设计暴雨强度,结合该光热电厂镜场场平图纸及镜场布置方案,研究制定"分区收集、自然下渗"和"分区替换覆盖层"等排水方案。实践证明,排水方案满足设计要求,实现了短历时暴雨情况下镜场雨水有序管理,不影响光热电厂正常运行。同时,该方案的施工措施简单,能够与场平工程同时施工,便于实施,缩短施工周期。

In order to solve the drainage problem of the solar field of large solar thermal power plant in the desert area with large area and undulating terrain,this paper studies the hydrological conditions,infiltration performance and geological conditions of different areas,based on the design storm process,according to the site layout drawings and the production process requirements of the power plant,and the drainage schemes of“zonal collection,natural infiltration”,“zonal replacement of covering layer”are formulated.The drainage scheme meets the design requirements,does not affect the normal operation of the plant and the orderly management of rainwater in mirror field under short duration rainstorm is realized.The construction measurement is simple,could be carried out with ground leveling simultaneously and shorten the construction period.