摘要
京能集团北京京西燃气热电有限公司使用的汽轮机为上海汽轮机厂生产的LZC(B)278.8-12.9/0.4/548/540型汽轮机,汽轮机型式为单轴反动式、高中压合缸、双缸双排汽、三压、再热、无回热、凝汽/抽汽/背压式,其配有西门子F级燃机,为燃气-蒸汽联合循环机组。汽轮机高中压部分为双层结构,采用高中压整体内缸,叶片反流布置,同时其采用节流调节,无调节级,整个通流部分共有50级。本文通过分析这种汽轮机启动冲转过程中X准则和主蒸汽温度的关系,以合理控制主蒸汽温度,使汽轮机快速启动,减少开机时间和开机成本,这对同类型汽轮机顺利启动并网及安全、经济运行具有重要的意义。
The steam turbine used by Beijing Jingxi Gas-fired Thermal Power Co.,Ltd.of Powerbeijing Group is the LZC(B)278.8-12.9/0.4/548/540 steam turbine produced by Shanghai Steam Turbine Factory,the turbine type is sin⁃gle-shaft reaction type,high and medium pressure combined cylinder,double cylinder and double exhaust steam,tri⁃ple pressure,reheat,no heat recovery,condensing steam/extraction steam/back pressure type,it is equipped with Sie⁃mens F-class gas turbine,which is a gas-steam combined cycle unit.The high and medium pressure part of the steam turbine has a double-layer structure,adopts a high and medium pressure integral inner cylinder,and the blades are arranged in reverse flow,at the same time,it adopts throttling adjustment,has no adjustment stage,and the entire flow part has a total of 50 stages.This paper analyzed the relationship between the X criterion and the main steam temperature during the start-up and impulse rotation of this kind of steam turbine,in order to reasonably con⁃trol the main steam temperature,so that the steam turbine couid be started quickly,reducing the startup time and startup cost,This is of great significance for the smooth start-up and grid connection and safe and economic operation of the same type of steam turbines.
作者
王雨
WANG Yu(Beijing Jingxi Gas-fired Thermal Power Co.,Ltd.,Powerbeijing Group,Beijing 100041)
出处
《河南科技》
2021年第2期137-139,共3页
Henan Science and Technology
关键词
汽轮机
X准则
主蒸汽温度
冷态启动
经济运行
steam turbine
X criterion
main steam temperature
cold start
economic operation
