变工况下高压加热器系统切除对机组运行热经济性的影响

华电技术 ›› 2014, Vol. 36 ›› Issue (2): 27-29.

变工况下高压加热器系统切除对机组运行热经济性的影响

(1.华电齐齐哈尔发电有限公司，黑龙江齐齐哈尔〓200090； 2.华电电力科学研究院，杭州〓310030)

出版日期:2014-02-25

Influence of cutting highpressure heater system off on unit thermal economy performance under variable operating conditions

(1.Huadian Qiqihar Power Generation Company Limited, Qiqihar 200090, China; 2.Huadian Electric Power Research Institute, Hangzhou 310030, China)

Published:2014-02-25

摘要/Abstract

摘要： 关键词：高压加热器；变工况；热经济性；回热系统

Abstract: Abstract:Based on the theory of variable operating conditions of steam turbine, the variation of the thermal economy performance indexes of the steam turbine unit after the HP heater had been cut off was analyzed. According to the amplitude of the index variation, the influence of cutting the HP heater off on economic efficiency was estimated. After the HP heater was cut off, the heat rate of the unit increases obviously, the cycle thermal efficiency of the system decreases, and the gross coal consumption rate increases. For more long time the HP heater is stopped, the caused economic loss is more obvious.

Key words: Keywords:highpressure heater (HP heater);variable operating conditions, thermal economy performance, regenerative heating system

雷天鹏 1，贾金婵 1，柴国旭 2 . 变工况下高压加热器系统切除对机组运行热经济性的影响[J]. 华电技术, 2014, 36(2): 27-29.

LEI Tianpeng 1, JIA Jinchan 1, CHAI Guoxu 2 . Influence of cutting highpressure heater system off on unit thermal economy performance under variable operating conditions [J]. Huadian Technology, 2014, 36(2): 27-29.