汽轮机阀门流量特性曲线优化  

Optimization on Flow Characteristic Curve of Steam Turbine Valve

作　　者：华兴鲁 梁金坨 孟帅 HUA Xinglu;LIANG Jintuo;MENG Shuai(Guodian Handan Cogeneration Power Plant,Handan 056004,China;Liaoning Datang New Energy Co.,Ltd.,Shenyang 110000,China;HebeiMatou Cogeneration Power Plant,Handan 056000,China)

机构地区：[1]国电电力邯郸热电厂,河北邯郸056004 [2]辽宁大唐新能源有限公司,沈阳110000 [3]河北马头发电有限责任公司,河北邯郸056000

出　　处：《河北电力技术》2020年第2期51-53,共3页Hebei Electric Power

摘　　要：针对某厂1号机组在大修后出现高调门摆动大,伴有一次调频不合格、AGC响应迟缓等问题,对该厂阀门管理环节进行试验,因GV2、GV3、GV6阀门摆动较大,故利用最小二乘法对GV2、GV3、GV6的阀门流量特性曲线进行修正,并根据作图法,对GV2、GV3、GV6之间的重叠度进行计算。结果表明,修正好的流量特性曲线输入到DEH中,阀门运行良好,一次调频能力得到提高,修正好的重叠度可更好的适应机组调峰,加快AGC响应,减少负荷摆动。After the overhaul of the No.1 unit of a factory,there was a large swing of the high-profile door,accompanied by problems such as unqualified FM,slow response of the AGC,and the problem became more and more serious with the passage of time.The valve management of the plant was tested.The valve flow characteristics of GV2,GV3 and GV6 were corrected by the least squares method.The overlap between GV2,GV3 and GV6 was recalculated according to the mapping method.The results show that the corrected flow characteristic curve is input into DEH,the valve runs well.The primary frequency modulation capability has been improved;the corrected overlap can better adapt to the unit.Peak shaving accelerates AGC response and reduces load swing.

关 键 词：汽轮机 高压调节阀门 流量特性曲线 重叠度 优化研究 

分 类 号：TM621.4[电气工程—电力系统及自动化]