高中压合缸汽轮机的冷却蒸汽确定方法试验研究  

Experimental Studies to Determine the High Pressure Cooling Steam of HP & IP Combined Cylinder Turbine

作　　者：赵伟光 樊庆林 陈显辉[3] 王莺歌[4] 

机构地区：[1]东北电力科学研究院有限公司,沈阳110006 [2]哈尔滨汽轮机厂有限公司,哈尔滨150040 [3]东方汽轮机有限公司,德阳618000 [4]华能大连电厂,大连116100

出　　处：《汽轮机技术》2011年第3期187-189,208,共4页Turbine Technology

摘　　要：叙述了高中压缸合缸汽轮机结构及主要特点。对于高中压合缸机组采用不同高压调节阀全开(两阀、三阀、四阀)状态下,通过分别改变主蒸汽温度和再热蒸汽温度试验,可求得高压缸进入中压缸蒸汽量占再热蒸汽量份额,为确定再热蒸汽流量和计算汽轮机热耗率提供依据。通过试验研究,对于采用高压缸后轴封一漏到中排布置的反动式汽轮机,高压调节阀三阀全开状态下得到的影响系数,较两阀全开状态下受到高压缸排汽影响要小,其结果更接近实际。The article introduced the structure and main features of HP＆IP combined cylinder turbine. To get the steam quantity leakage in the front gland of HP＆IP cylinder share of the total re-heat steam, we should change the initial steam temperature and reheat steam temperature respectively with the high pressure control valve fully opening in different （two- valve, three-valve, four-valve） conditions in order to determine the reheat steam flow and the heat consumption rat. Through experimental study, for the reaction turbine which quantity leakage of HP rear shaft seal goes to IP exhaust steam, the three high pressure control valves fully opening state is better than the two high pressure control valves fully opening state to get the influence coefficient of the actual result.

关 键 词：汽轮机 热耗率 中压缸效率 影响系数法 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程]