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The Temperature Characteristics Study of Spiral Water-wallin 350 Mw Supercritical Pressure Boilers
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[1]WANG Wei-shu,LI Shuai-shuai,ZHOU Jun-jie,et al.The Temperature Characteristics Study of Spiral Water-wallin 350 Mw Supercritical Pressure Boilers[J].Journal of Zhengzhou University (Engineering Science),2013,34(03):50-54.[doi:10.3969/j.issn.1671-6833.2013.03.013]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 34 Number of periods: 2013 03 Page number: 50-54 Column: Public date: 2013-05-31
Title:
The Temperature Characteristics Study of Spiral Water-wallin 350 Mw Supercritical Pressure Boilers
Author(s):
WANG Wei-shu’ ; LI Shuai-shuai’; ZHOU Jun-jie’; BI Qin-cheng’
1.Institute of Thermal Energy Engineering，North China University of Water Resources and Eletric Power, Zhengzhou 450011 ,China; 2.School of Chemical and Energy Engineering，Zhengzhou University,Zhengzhou 450001 ,China; 3.State Key Lab ofMultiphase Flow in Power Engineering , Xi’ an Jiaotong University , Xi’an 710049 , China
Keywords:
supercritical pressure boiler;  spiral water-wall;  temperature field; numerically calculation
CLC:
TK223.3
DOI:
10.3969/j.issn.1671-6833.2013.03.013
Abstract:
In view of the temperature characteristics of water wall in 350MW supercritical pressure boiler ofLinzhou thermal power plant，the temperature fields of rectangular fins water wall were numerically studied bythe finite volume method ， and the spiral membrane water-wall temperature in the lower furnace was analyzed.According to the calculation results，temperature of spiral water-walls increases with the increase of the heightof furnace. The highest temperature，which occurs at the facing flame outer of water wall tube or the fin’send，is less than 440 C and does not exceed the permitted value of the metal. Both the highest temperatureand the maximum temperature difference increase with increasing the furnace load. As the thermal deviationcan be effectively reduced by using spiral water-wall，the temperature of water-walls and the temperaturedifference of working medium between each tube are very small along the width direction of the furnace.
References:
[1]王振铭．我国热电联产发展状况分析[J]．热电技术，2011(2)：1—5．
[2]高慧云，肖宁．我国热电联产产业的发展趋势[J]．发电设备，2010，24(6)：467—469．
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