选取某热力站高区系统进行试验，分析了热力站内部分阀门拆除前后二次网循环流量的变化情况，判断了阀门对二次网运行的影响，得出了一些结论，为热力站优化设计提供数据资料。%This paper made test selection of a thermal power station high pump area system,analyzes the changes situation of secondary net circu-lation flow rate before and after removal of thermal power station part of valves,judged the influence of valve to secondary net operation,draw some conclusions,provided data for thermal power station optimization design.
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