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抽水蓄能电站中淡水壳菜生物污损及防治
  • ISSN号:1003-1243
  • 期刊名称:《水力发电学报》
  • 时间:0
  • 分类:X143[环境科学与工程—环境科学]
  • 作者机构:[1]清华大学水沙科学与工程国家重点实验室,北京100084, [2]华东琅琊山抽水蓄能有限责任公司,安徽滁州239000, [3]河海大学水文水资源与水利工程科学国家重点实验室,南京210098, [4]国网新源控股有限公司,北京100761
  • 相关基金:国家自然科学基金(51409146);华东琅琊山抽水蓄能有限责任公司科研专项(SGTYHT/13-JS-177);中国水利学会“青年人才托举”项目(20161440132)
中文摘要:

近年来抽水蓄能电站中爆发了一系列的淡水壳菜(Limnoperna fortunei,学名沼蛤)生物污损问题,严重影响电站的安全生产,引起了广泛关注。本文基于国内外沼蛤防治研究经验,结合工程实例中沼蛤的两类污损问题,分享最新的防附着涂料及生态水力学方法在抽水蓄能电站中沼蛤入侵防治方面的试验成效。针对大管径大流量的引水隧洞等结构,沼蛤污损防治可以考虑采用能够有效防止沼蛤附着,且抗侵蚀性和环保性、耐久性等多个方面的综合效果良好的衬砌材料,如SK-聚脲和SK-环氧YEC。针对小管径小流量的技术供水系统,沼蛤的防治可采用本文提出的集生物附着法、生物沉降法和湍流灭杀法于一体的综合防治装置对水流携带的幼虫进行吸附、沉降、灭杀,从而降低幼虫进入技术供水系统的风险。

英文摘要:

Pumped-storage power plants (PSPs) aim to solve the conflict between power supply and demand at the peak and trough of power consuming, ensuring grid safety, economic growth, and stable production. Invasion and biofouling of golden mussel (Limnoperna fortunei) in PSPs, however, is attracting wide public attention because in recent years the biofouling has caused severe problems in the operation of PSPs. The specific operation mode of PSPs is commonly taken as the major cause for such biofouling in water intakes and tunnels. A PSP releases water stored in its upper reservoir to the lower one when it generates power during peak power-consuming hours, and pumps water back to its upper reservoir during low demand hours. During water releasing and pumping, golden mussel veligers are stirred up from the reservoir bed and transported into the intakes, tunnels, and the other structures reachable by the flow; then they are settled down on the walls of all the structures they have touched, causing biofouling, structure corrosion, and even pipe clog. Particularly, the small tubes of the PSP cooling water system are under a high risk of being clogged, often causing a shutdown accident. This study presents an overview on the latest advances in preventive measures against golden mussel biofouling in PSPs based on previous studies, overseas experiences, and our own experiences. For large-scale water-intake pipes of PSPs, the risk of clogging is low and therefore the basic strategy should focus on pipe wall resistance to the corrosion. Certain environment-friendly, economically-desirable coating materials, e.g. SK-Polyurea and SK-Epoxy YEC, which have been shown very effective in terms of biofouling resistance and pipe-wall durability, are recommended according to our experimental study. For small-scale PSP cooling water systems, we propose a control device of the veliger density in water flow that integrates the measures of attachment- attracting, settling, and veliger killing and thus effectively reduces biofouling ris

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期刊信息
  • 《水力发电学报》
  • 北大核心期刊(2011版)
  • 主管单位:中国科学技术协会
  • 主办单位:中国水力发电工程学会
  • 主编:李庆斌
  • 地址:北京清华大学新水利馆211室
  • 邮编:100084
  • 邮箱:
  • 电话:010-62783813
  • 国际标准刊号:ISSN:1003-1243
  • 国内统一刊号:ISSN:11-2241/TV
  • 邮发代号:
  • 获奖情况:
  • 优秀学术期刊三等奖
  • 国内外数据库收录:
  • 荷兰文摘与引文数据库,美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:12057