汽封供汽汽源温度匹配的探索和实践  

Search and Practice of Matching of Gland Supply Steam Temperature

作　　者：杜开榜 童宏仙 刘孝峰 DU Kaibang;TONG Hongxian;LIU Xiaofeng(Shanghai Turbine Works Co.,Ltd.,Shanghai 200240,China)

机构地区：[1]上海汽轮机厂有限公司,上海200240

出　　处：《热力透平》2021年第4期281-284,288,共5页Thermal Turbine

摘　　要：汽轮机汽封系统供汽汽源温度匹配的问题是汽封系统设计的关键点。通过对单路供汽的汽源进行分析,研究出一套可靠的汽源匹配方法。通过在供汽汽源接至汽封供汽阀前的管道上加设暖管孔板和疏水阀、电加热装置及减温装置,可有效地满足各种情形下轴封供汽温度的要求。同时,提出一套切实可行、满足现场运行要求的控制逻辑。该研究成果可为汽轮机汽封系统的设计提供参考和借鉴。The matching of the gland supply steam temperature in steam turbine is the key point for gland system design.Based on analysis of steam source in single steam supply system,a set of reliable matching method of steam source is proposed.With adding pipe warming pore plate and drainage valve,electric heater and attemperator on the pipe between the steam supply source and the valve,the requirement of gland supply steam temperature under various conditions can be met.Meanwhile,a set of control logic is proposed to meet the demand of on-site operation.The research result can provide reference for the design of gland system in steam turbine.

关 键 词：汽轮机 汽封系统 电加热器 减温器 控制逻辑 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]