张河湾蓄能电站厂房减振降噪项目研究

发布时间：2018-06-24 23:48

本文选题：抽水蓄能电站 + 地下厂房　；参考：《华北电力大学》2014年硕士论文

【摘要】：张河湾抽水蓄能电站机组投入运行以来，一直存在强烈的振动和噪声，影响设备安全稳定运行。张河湾公司邀请国内有关专家赴现场体验和调查，参与调查的专家认为张河湾抽水蓄能电站厂房振动、噪声强烈程度比较少见，，剧烈的振动不仅对结构有一定的破坏作用，而且可能会影响仪器设备的正常运行、导致设备损坏和错误动作，对设备安全存在很大的隐患，尤其当某个部件或整体的自振频率接近振源频率而发生共振时，影响将十分严重，而振动还会产生噪音，从而更加恶化厂内工作环境。因此，需要找到尽快采取减振降噪措施，尽量防止厂房在运行中的振动和产出噪音，将损失减小到最小。本文对选题的背景和意义以及国内外研究现状进行了系统阐述和深入的研究，介绍和阐述了张河湾抽水蓄能电站的基本概况、水电站减振降噪相关的理论；然后详细介绍了中国水利水电科学研究院、河海大学与武汉大学的各自的减振降噪模型和测试计算结果，并对三者结果进行对比分析。最后，在上述工作的基础之上，提出了通过构建张河湾抽水蓄能电站项目综合评价指标体系，并结合运用模糊综合层次分析法对三家单位的项目方案进行综合评价，并根据评价结果，得出中国水利水电科学研究院的电站减振降噪项目方案最合适的结论，并根据选出方案的研究结果，有针对性的提出了张河湾抽水蓄能电站的减振降噪措施。
[Abstract]:Since the unit of Zhanghewan pumped storage power station was put into operation, there has always been strong vibration and noise, which affects the safe and stable operation of the equipment. Zhanghewan Company invited relevant domestic experts to go to the site to experience and investigate. The experts involved in the investigation believe that the vibration of Zhanghewan pumped storage power station powerhouse is rare, the intensity of noise is relatively rare, and the violent vibration not only has a certain destructive effect on the structure, Moreover, it may affect the normal operation of the instrument and equipment, and lead to the damage and wrong operation of the equipment. There is a great hidden danger to the safety of the equipment, especially when the natural vibration frequency of a component or whole is close to the vibration source frequency and resonance occurs. The effects will be severe and the vibration will produce noise, thus worsening the working environment in the plant. Therefore, it is necessary to find out measures to reduce vibration and noise as soon as possible, to prevent the vibration and output noise in the operation of the plant as far as possible, and to minimize the loss. In this paper, the background and significance of the topic and the research status at home and abroad are systematically described and deeply studied. The basic situation of Zhanghewan Pumped-storage Power Station and the theory of reducing vibration and noise of hydropower station are introduced and expounded. Then, the vibration and noise reduction models and test results of China Institute of Water Conservancy and Hydropower Sciences, Hehai University and Wuhan University are introduced in detail, and the results are compared and analyzed. Finally, on the basis of the above work, a comprehensive evaluation index system of Zhanghewan pumped storage power station project is put forward, and the project scheme of three units is evaluated by using fuzzy comprehensive analytic hierarchy process. According to the evaluation results, the most appropriate conclusion of the project of reducing vibration and noise of the hydropower station of China Institute of Water Conservancy and Hydropower Research is obtained, and according to the research results of the selected scheme, the measures of reducing vibration and noise of Zhanghewan pumped storage power station are put forward.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV743

【参考文献】