TEST STUDY ON CONVERTING LEANCOAL FIRED BOILER FOR 300 MW UNIT TO BURN BITUMINOUS COAL
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TEST STUDY ON CONVERTING LEANCOAL FIRED BOILER FOR 300 MW UNIT TO BURN BITUMINOUS COAL
Thermal Power GenerationVol. 38, Issue 8, Pages: 79-82(2009)
作者机构:
1. 广东省粤电集团有限公司
2. 华中科技大学煤燃烧国家重点实验室
3. 广东电力科学研究院
作者简介:
基金信息:
DOI:
CLC:TK227.1
Published:2009
稿件说明:
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HU Ping-fan1, YIN Jun-jun2, ZHANG Cheng2, et al. TEST STUDY ON CONVERTING LEANCOAL FIRED BOILER FOR 300 MW UNIT TO BURN BITUMINOUS COAL[J]. Thermal power generation, 2009, 38(8): 79-82.
DOI:
HU Ping-fan1, YIN Jun-jun2, ZHANG Cheng2, et al. TEST STUDY ON CONVERTING LEANCOAL FIRED BOILER FOR 300 MW UNIT TO BURN BITUMINOUS COAL[J]. Thermal power generation, 2009, 38(8): 79-82.DOI:
TEST STUDY ON CONVERTING LEANCOAL FIRED BOILER FOR 300 MW UNIT TO BURN BITUMINOUS COAL
摘要
湛江电厂3号300 MW机组锅炉设计煤种为晋东南无烟煤与贫煤的混煤
拟改烧烟煤
对此进行了热力计算
分析了改烧烟煤对锅炉安全性和经济性的影响。利用热重分析仪和一维沉降炉研究了煤粉细度对燃烧特性的影响
确定试烧期间合适的煤粉细度为15%~20%;提出了3号炉改造方案并进行了试烧
结果表明50%负荷下可无油稳定运行
锅炉热效率可提高2%。
Abstract
The originally designed coal sort for boiler no.3 of 300 MW unit in Zhanjiang Power Plant was blend coal of anthracitic coal and lean coal produced from South-east Shanxi Province
it is intended to convert the said boiler to burn bituminous coal
for this
the thermodynamic calculation has been carried out
and the influence of converting the boiler to burn bituminous coal upon safety and economic efficiency of the boiler being analysed.The influence of pulverized coal fineness upon the combustion characters has been studied by using thermo-gravimetric analyser and one-dimentional subsiding furnace.It is determined that the suitable fineness of pulverized coal during trial firing period to be 15%~20%.The retrofit scheme of boiler no.3 has been put forward
and trial firing is carried out.Results show that the boiler can maintain oil-less and stable operation under load of 50%
the thermal efficiency of boiler can be enhanced by 2%.