应用能源技术
2011年第11期（总第167期）
加热器抽汽压损对机组煤耗率影响的图谱分析
月顺林，周冲，董标
（00
摘要：加热器抽汽压损对机组煤耗率有较大影响，分析其影响的具体规律对于指导机组优化运行和合理维修从而达到节能降耗的目的具有重要的指导意义。文中在抽汽压损变化对机组煤耗率影响计算公式的基础上，以某600MW凝汽式机组典型工况为例。求出了抽汽压损对煤耗率影响的强度系数及对煤耗率影响的具体数值，绘制了抽汽压损强度系数图谱与煤耗率图谱。据此分析了抽汽压损变化对煤耗率影响的具体规律，得到了运行中的监视重点和节能降耗的重点所在，为指导机组的运行和检修工作提供了理论依据。
关键词：抽汽压损；强度系数；强度系数图谱；煤耗率图谱；节能降耗中图分类号：TK269.2
2文献标志码：B文章编号：1009~3230(2011)10-0004-04
MappingAnalysisaboutInfluenceofHeaterSteamExtraction
PressureLossonCoalConsumptionRate
YAN Shun-lin, ZHOU Chong, Dong Biao
(Key Laboratory of Condition Monitoring and Control for Power Plant Equipment North
China Electric Power University, Ministry of Education, Baoding 071003, China)
Abstract: There is a tremendous influence of heater steam extraction pressure loss on unit's coal consumption rate, analyzing specific rules of the influence has important guidance significance to unit's optimization operation and reasonable repair for realizing energy saving and consumption reducing. This paper is at the base of the calculation formula which describes the influence of steam extraction pressure loss change to coal consumption rate, taking 600MW condensing steam turbine unit's typical conditions for an example, find out the intensity coefficient and specific value of the influence of steam extraction pressure loss changes on coal consumption rate, and then draw the intensity coefficient and coal consumption rate mappings about steam extraction pressure loss. According to this, the specific rules of influence of steam extraction pressure loss on coal consumption rate are analyzed and the important points of operation supervising and energy saving and consumption reducing are obtained, in which provide theoretical basis for directing unit's operation and repair. Key words: Steam extraction pressure loss; Intensity coefficient; Intensity coefficient mapping; Coal consumption rate mapping; Energy saving and consumption reducing
0
引言
抽汽压损是指抽汽在加热器中以及从汽轮机抽汽口到加热器管道上产生的压力损失之和(1)。机组运行过程中加热器抽汽压损的变化对煤耗率有一定的影响[3)，计算分析抽汽压损变化对煤耗
收稿日期：2011-10-11
修订日期：20111029
作者简介：同顺林（1959-），男，教投，从事火电机组节能理
论、节能技术及锅炉烧稳定性的研究。
万方数据
率影响的规律，对于指导机组经济运行、降低一次能源消耗、保护环境具有重要的实际意义。本文在煤耗率与抽汽压损微分关系式的基础上，以某 600MW机组为例，借助于抽汽压损对煤耗率影响的强度系数图谱和煤耗率图谱来揭示抽汽压损变化对煤耗率影响的规律，为机组的优化运行和合理检修提供依据。文中方法也可为其他类型机组的同类问题的解决提供参考。