电厂取水设施运行对水生生物影响与减缓措施

Influence of Water Intake Facilities on Aquatic Organisms and Mitigation Measures in Power Plants

在电厂取水运行的过程中,会从地表抽取大量的水资源,这样就有可能导致水生生物的生存环境受到一定的影响。对于冷却水中体型比较大的水生生物,不能够通过滤网,一旦未能做到将其移出取水设施内,就会导致其受到滤网的撞击影响;如果是体型比较小的水生生物,那么就非常有可能经由滤网进入到电厂的取水系统中,这样就会导致其受到热应力、机械应力等多方面因素的夹带影响。在电厂内部,往往存在大量的冷却水系统机组,并且在运行的过程中对于装机影响的考虑还不够全面,缺乏非常有效的环节措施。本文从电厂取水设施运行中对水生生物产生的撞击以及夹带损失的含义及研究现状进行分析,并对现有应对措施的有效性进行了判断说明,提出了针对性的改进措施。

In the process of water intake operation in power plant,a large amount of water resources will be extracted from the surface,which may lead to a certain impact on the living environment of aquatic organisms.For the larger aquatic organisms in the cooling water,they are not able to pass filters,and once they fail to move them out of the water facilities,they will be affected by the impact of the filter.They are affected by many factors such as thermal stress and mechanical stress.In the power plant,there are often a large number of cooling water system units,and in the process of operation,the consideration of the impact of loading is not comprehensive,and the lack of very effective measures.In this paper,the impact of the aquatic organisms in the operation of the power plant and the meaning of the loss of the entrainment and the current research status are analyzed,and the effectiveness of the existing countermeasures is judged and explained,and the pertinent improvement measures are put forward.