【摘要】 提出了一种新的汽轮机凝汽器空气漏入率在线测量方法,阐述了测量原理并推导出了计算公式。在此基础上,搭建了模拟电厂凝汽器抽真空管道环境的实验台并对整个实验系统进行了不确定度分析,通过实验设定值与采用本文提出方法的计算结果比较,相对偏差均在1%以内,从而验证了本文提出方法的正确性。本文工作为下一步研制集成化的汽轮发电机组真空系统漏气率在线测量装置奠定了基础。更多还原

【Abstract】 A novel technique has been successfully developed to measure,on-line,the air leakage rate of the steam turbine condenser,installed in coal-fire power plant.The measuring principle was described and the calculation formula was derived.The prototyped set-up was constructed to experimentally simulate the air leakage rate of the vacuum pipe of the steam turbine condenser.The discrepancy between the calculated results,based on the newly-developed method,and the experimentally simulated results was found to be less than 1%.The feasibility of the calculation scheme in developing an integrated device for on-line measurement of the air leakage rate in turbine vacuum system was also tentatively discussed.更多还原