汽轮机技术
汽輪機技術
기륜궤기술
TURBINE TECHNOLOGY
2014年
1期
50-52
,共3页
张希富%王运民%何健%马海龙
張希富%王運民%何健%馬海龍
장희부%왕운민%하건%마해룡
汽轮机%复合滑压运行%滑压曲线%运行方式
汽輪機%複閤滑壓運行%滑壓麯線%運行方式
기륜궤%복합활압운행%활압곡선%운행방식
steam turbine%composite sliding pressure operation%sliding pressure curve%operating modes
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。
汽輪機運行中長期處于變工況運行狀態,噹前很多大型汽輪機都採用複閤滑壓運行方式以實現在整箇負荷範圍內的較高熱經濟性和安全性。針對汽輪機複閤滑壓運行滑壓階段的特點,藉助調節級特性參數,併攷慮汽輪機進汽閥門的壓力損失,提齣瞭汽輪機複閤滑壓運行滑壓麯線的求取方法。同時以某600MW汽輪機為例,通過計算得到瞭汽輪機複閤滑壓運行的滑壓麯線,併將該麯線與製造廠運行麯線進行對比分析,驗證瞭該方法的正確性。
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 .