百万等级超超临界汽轮机进汽调节方式分析  

Admission Governing Method Analysis for 1000 MW Level Ultra-super Critical Steam Turbine

作　　者：石淑莲[1] 余红兵[1] 

机构地区：[1]哈尔滨汽轮机厂有限责任公司,黑龙江哈尔滨150046

出　　处：《节能技术》2011年第3期268-271,共4页Energy Conservation Technology

摘　　要：喷嘴调节和节流调节是目前汽轮机进汽调节的两种主要调节方式。本文通过对百万等级超超临界汽轮机组,喷嘴调节和节流调节两种汽轮进汽调节特点及运行方式的分析和比较,收集两种不同进汽调节方式的机组的各种运行工况的热耗,并进行经济性分析,得出两种调节方式在汽轮机在各种运行工况时的优缺点。然后对百万等级超超临界机组,采用喷嘴调节的可行性,从结构设计、材料应用、制造工艺等方面进行了详细的分析,结果认为百万等级超超临界汽轮机机组,采用喷嘴调节的方案是可靠的,也是经济可行的。从而对百万等级超超临界汽轮机的进汽调节方式的选用提供参考。At present,main governing methods for steam turbine admission are nozzle governing and throttle governing.This thesis analyzes and compares the steam admission characteristics and operating modes of nozzle governing and throttle governing for 1 000 MW Level Ultra-super Critical Steam Turbine,collecting the heat rate values of different steam admission governing methods under different working conditions and analyzing the economical efficiency,to sum up the advantages and disadvantages of these two governing methods under different working conditions.According to the design structures,material adoption and manufacturing process,feasibility was analysed for 1 000 MW Level Ultra-super Critical Steam Turbine unit to adopting nozzle governing method.The conclusion is： adopting nozzle governing method for 1 000 MW Level Ultra-super Critical Steam Turbine unit is realizable,economical,and feasible.This result could provide reference for choosing the steam admission governing method for 1 000 MW Level Ultra-super Critical Steam Turbine.

关 键 词：百万等级 超超临界 汽轮机 喷嘴调节 节流调节 

分 类 号：TK269[动力工程及工程热物理—动力机械及工程]