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doi:10.3969/j. issn. 1009 3230.2014.06.008
应用能源技术
2014年第6期（总第198期）
170t/h四角切圆煤粉锅炉冷态试验分析研究
向离华"，张家元
（1.湖南化工职业技术学院，湖南株洲412004； 2.中南大学能源科学与工程学院，长沙410083)
摘要：对WGZ170/9.8-3型煤粉锅炉在冷态下进行了全面的测试分析，找出送、引风机及二次风门挡板开度与风量(速)的关系及四角喷燃下炉内速度分布及气流均匀情况；通过对试验结果的分析，确定送风机板开度在40%左右、两台引风机并联运行挡板各开45%左右较为适宜，燃烧中配风、各二次风门档板的运行开度及对二次配风进行冷态调平，同时对炉内空气动力场进行飘带试验研究，经过合理的一、二次风配置，空气动力场良好，为锅炉的顺利点火及稳定运行提供依据。
关键调：四角切圆锅炉；冷态模化试验；空气动力场；分析中图分类号：TM621
文献标志码：A文章编号：1009-3230(2014)06-0026-05
ResearchofColdTestin170t/hTangentiallyFiredBoiler
XIANG Yu -hua'-2, ZHANG Jia yuan'
(1. S Hunan Chemical Industry Vacation Technology Institute, Zhuzhou 412004, China;
2.chool of Energy Science and Engineering,Central South University,Changsha 410083,China） Abstract: The characteristics of the WGZ170/9. 8 3 pulverized coal boiler were obtained based on cold test, Including the air velocity distribution in tangential firing boiler and the relation between air distribution with opening of each secondary air dampe, The test results had determined that the baffle of blower at around 40% and two parallel draft fan about 45% were relatively appropriate,and the air distribution and opening of each secondary air dampe and balancing the distribution of primary air and second air along the width direction of the boiler hearth were confirmed through test, and the aerodynamic field inside the boiler was investigated based on the tie floating test. and good aerodynamic field can be obtained after distributing the primary air and second air reasonably,which guarantee the ignition and stable operation of the boiler.
Key words: Tangential firing boiler; Cold statemodeling experimen; Aerodynamic field; Analysis
0引言
锅炉冷态性能试验是电站锅炉运行调整的依据和重要手段，它对了解锅炉的实际运行特性，保持燃料高效燃烧，保证锅炉运行的安全性和经济性有着重要的意义。某公司热电厂的WCZ170/
收稿日期：2014-04-10修订日期：2014-05-15 基金项目：潮南省教育厅科技项目（13C233）
作害简介：向离华（1968-），女，湖南泸溪人，教授，硕士，从
事热能与动力工程研究。
万方数据
9.8-3型燃煤锅炉，自投产运行以来，曾先后出现水冷壁严重的高温腐蚀、水冷壁结焦、热效率低、无油助燃低稳燃负荷相对过高等情况，当煤种变化，锅炉在低负荷运行时，不能正常运行，并时常发生熄火，严重影响了锅炉的安全、经济运行，因此决定对锅炉燃烧器及燃烧系统等进行改造。根据国家电力行业标准及有关规程要求，在点火试运行前对锅炉进行了冷态试验[1-2]。通过冷态