珠海市大万山岛海水抽水蓄能电站温排水对周边海域影响的模拟分析研究  

Simulation and Analysis on the Influence of Thermal Discharge of Seawater Pumped Storage Power Station on Surrounding Sea Area in Dawanshan Island of Zhuhai City

作　　者：李建秋 曾俏俏 苏跃涵 李恒翔[4] 卢耀斌 骆海萍 刘广立[3] LI Jianqiu;ZENG Qiaoqiao;SU Yuehan;LI Hengxiang;LU Yaobin;LUO Haiping;LIU Guangli(CSG Power Generation Company,Guangzhou 510630,China;Guangdong Institute of water conservancy and Power Survey and Design Co.,Ltd,Guangzhou 510635,China;School of Environmental Science and Engineering,Sun Yat-sen University,Guangzhou 510006,China;South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China)

机构地区：[1]南方电网调峰调频发电有限公司,广州510630 [2]广东省水利电力勘测设计研究院有限公司,广州510635 [3]中山大学环境科学与工程学院,广州510006 [4]中国科学院南海海洋研究所,广州510301

出　　处：《海洋开发与管理》2022年第3期9-15,共7页Ocean Development and Management

基　　金：国家重点研发计划课题(2017YFB0903700,2017YFB0903703)。

摘　　要：海水抽水蓄能电站上水库温度升高可能对下水库海域海水水温产生影响,文章对珠海市大万山岛拟建的海水抽水蓄能电站温排水进行模拟分析,结果表明,海水抽水蓄能电站在设计水量12.3m^(3)/s的条件下,下水库排水8h后,不会对所在海域海流流场产生显著影响;当排放温度为30.2℃时,春季温排水影响的面积为1.76 km^(2),最大温升为1.35℃,最大温升面积为0.006 km^(2);夏季影响面积约1.58 km^(2),最大温升为0.7℃,最大温升面积为0.013 km^(2);秋季影响面积约为1.66 km^(2),最大温升为0.8℃,最大温升面积约为0.085 km^(2);冬季影响面积约为1.95 km^(2),最大温升为1.9℃,最大温升面积约为0.030 km^(2)。周边海域最大温升随着排水温度增加逐渐增加,但对应的最大温升面积变化较小。在排水温度为32.2℃时,夏季最高温升约0.9℃,冬季最高温升约2.3℃;排水温度为34.2℃,夏季最高温升约1.15℃,冬季最高温升约2.6℃。最大温升面积在0.019~0.027 km^(2)。排水流量从10.3m^(3)/s逐渐增加到20.3m^(3)/s,周边海域的最大温升值增加,但最大温升面积增幅较小,当排水流量达到20.3m^(3)/s时,最大温升值达到最大值2.25℃,最大温升面积为0.007 km^(2)。文章的研究结果为未来大万山岛海水抽水蓄能电站的环境影响评价及周边海域生态管理提供了科学依据。The temperature rise of the upper reservoir of the seawater pumped storage power station may affect the seawater temperature of the lower reservoir.In this paper,the thermal discharge of the seawater pumped storage power station proposed to be built on Dawanshan Island in Zhuhai City was simulated and analyzed.The results showed that the seawater pumped storage power station would not have a significant effect on the local sea flow field under the condition of 12.3 m^(3)/s within 8 h drainage from the lower reservoir.When the discharge temperature was 30.2℃,the affected area was 1.76 km^(2),and the maximum temperature rise was 1.35℃with the maximum temperature rise area of 0.006 km^(2)in spring.In summer,the affected area was 1.58 km^(2),and the maximum temperature rise was 0.7℃with the maximum temperature rise area of 0.013 km^(2).In autumn,the affected area was 1.66 km^(2),and the maximum temperature rise was 0.8℃with the maximum temperature rise area of 0.085 km^(2).In winter,the affected area was 1.95 km^(2),and the maximum temperature rise was 1.9℃with the maximum temperature rise area of 0.030 km^(2).The maximum temperature rise in the surrounding sea area increased gradually with the increase of drainage temperature,but the corresponding maximum temperature rise area changed little.When the drainage temperature was 32.2℃,the maximum temperature rise was 0.9℃and 2.3℃in summer and winter,respectively.When the drainage temperature was 34.2℃,the maximum temperature rise was 1.15℃and 2.6℃in summer and winter,respectively.The maximum temperature rise area was in a range of 0.019~0.027 km^(2).With the drainage flow increasing from 10.3 to 20.3 m^(3)/s,the maximum temperature rise in the surrounding sea area increased but the maximum temperature rise area was almost kept stable.The maximum temperature rise reached 2.25℃with the maximum temperature rise area of 0.007 km^(2)at the drainage flow of 20.3 m^(3)/s.The results should provide a scientific basis for environmental impact assessment a

关 键 词：海水抽水蓄能电站 大万山岛 温排水 最大温升 

分 类 号：P76[天文地球—海洋科学] X55[环境科学与工程—环境工程]