CAJ | 학술논문

汽轮机运行中长期处于变工况运行状态，当前很多大型汽轮机都采用复合滑压运行方式以实现在整个负荷范围内的较高热经济性和安全性。针对汽轮机复合滑压运行滑压阶段的特点，借助调节级特性参数，并考虑汽轮机进汽阀门的压力损失，提出了汽轮机复合滑压运行滑压曲线的求取方法。同时以某600MW汽轮机为例，通过计算得到了汽轮机复合滑压运行的滑压曲线，并将该曲线与制造厂运行曲线进行对比分析，验证了该方法的正确性。
기륜궤운행중장기처우변공황운행상태，당전흔다대형기륜궤도채용복합활압운행방식이실현재정개부하범위내적교고열경제성화안전성。침대기륜궤복합활압운행활압계단적특점，차조조절급특성삼수，병고필기륜궤진기벌문적압력손실，제출료기륜궤복합활압운행활압곡선적구취방법。동시이모600MW기륜궤위례，통과계산득도료기륜궤복합활압운행적활압곡선，병장해곡선여제조엄운행곡선진행대비분석，험증료해방법적정학성。
Steam turbine have often been running in the variable working condition running state .On the current,a lot of large steam turbines operate at composite sliding pressure operation mode in order to achieve higher thermal efficiency and safety in the entire load range .According to the characteristics of steam turbine sliding pressure stage in composite sliding pressure operation ,this paper presents a method of obtaining sliding pressure curve in composite sliding pressure operation of steam turbine , on the basis of using governing stage characteristic parameter and considering the pressure loss of the turbine admission valves.At the same time,taking the 600MW steam turbine in power plant as an example ,the sliding pressure curve by calculating in composite sliding pressure operation of steam turbine is obtained , and the correctness is verified by comparing the calculated curve with the operation curve of the manufacturer .