地下水电站除湿机的除湿效果与设计方法

发布时间：2018-04-16 03:38

本文选题：水电站 + 除湿　；参考：《西安建筑科技大学》2014年硕士论文

【摘要】：近年来，我国大力开发水电资源，水电工程的建设快速发展。受地形地貌及其他因素的影响，许多拟建、在建和已建的大型水电站都选择了地下厂房的形式。由于水电站一般为深埋地下厂房，不受阳光照射，且围护结构表面散湿较大，其空气相对湿度也往往较大。特别是水电站的水轮机层和蜗壳层，相对湿度甚至达到90%以上，厂房中常常发生结露现象。潮湿的地下空间不但会影响机电设备的使用寿命，而且对工作人员的健康也产生不利影响。本课题对地下厂房的湿环境进行了深入的理论分析，，对已建成的惠州抽水蓄能电站地下厂房的热湿环境进行夏季现场测试，并对地下厂房的湿环境进行了详细的数值模拟，分析了水电站地下厂房除湿机实际运行中存在的问题。通过对惠州抽水蓄能电站A厂房和B厂房（A厂房和B厂房装机容量、洞室结构完全一样，只是B厂房水轮机层装了13台除湿机，A厂房未装除湿机）水轮机层的热湿环境现场对比测试分析和数值模拟，研究了除湿机的有效除湿半径和有效除湿范围。推荐了水电站地下厂房除湿机的合理设计及布置方案。
[Abstract]:In recent years, our country vigorously develops hydropower resources, and the construction of hydropower projects develops rapidly.Under the influence of topography and other factors, many large hydropower stations proposed to be built, are under construction and have been built have chosen the form of underground powerhouse.Because the hydropower station is usually a deep buried underground powerhouse, it is not exposed to sunlight, and the surface of the enclosure structure is wet, and the relative humidity of the air is often higher.Especially, the relative humidity of turbine layer and volute layer of hydropower station is more than 90%.Damp underground space will not only affect the service life of mechanical and electrical equipment, but also adversely affect the health of staff.In this paper, the wet environment of underground powerhouse is analyzed theoretically, the thermal and wet environment of the underground powerhouse of Huizhou pumped storage power station is tested in summer, and the wet environment of underground powerhouse is simulated in detail.The problems existing in the practical operation of dehumidifier in underground powerhouse of hydropower station are analyzed.According to the installed capacity of the A and B power plants of Huizhou pumped Storage Power Station, the structure of the caverns is exactly the same.Only 13 dehumidifiers and no dehumidifiers have been installed in the turbine layer of Factory B) the thermal and wet environment of the turbine layer has been tested and analyzed numerically, and the effective dehumidification radius and the effective dehumidification range of the dehumidifier have been studied.The reasonable design and layout of dehumidifier for underground powerhouse of hydropower station are recommended.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV735;TU834.9

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