Numerical Calculation of the Temperature Field of Membrane Water-wall of 350 MW Supercritical Boiler
[1]Wang Weishu,Cui Qiang,Zheng Mengxing,et al.Numerical Calculation of the Temperature Field of Membrane Water-wall of 350 MW Supercritical Boiler[J].Journal of Zhengzhou University (Engineering Science),2017,38(01):46-.[doi:10.13705/j.issn.1671-6833.2016.04.026]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
38
Number of periods:
2017 01
Page number:
46-
Column:
Public date:
2017-02-24
- Title:
- Numerical Calculation of the Temperature Field of Membrane Water-wall of 350 MW Supercritical Boiler
- Keywords:
- supercritical pressure boiler; membrane water-wall; water-wall temperature distribution; temperature field
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2016.04.026
- Abstract:
- In view of the temperature characteristics of semi circumference heated membrane water-walls in a 350 MW supercritical pressure boiler,a calculation program was built to obtain spiral membrane water-wall temperature distribution under different furnace loads.The results showed that:the uneven distribution of furnace heat load led to uneven heat of water-walls;temperature on the facing flame side of water-walls fluctuated within a narrow range,which was the same as the fin.The distribution of temperature on the facing flame side was low in the middle and higher on other sides.With the increase of height of furnace,temperature of waterwall rose and there was a certain fluctuation.The highest temperature appeared on the facing flame side of the fin,and the lowest temperature appeared on the inner wall of water-wall bus bar when BMCR load was 75％.
- References:
- -
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