ZHANG Zhengkun, LONG Heping. Study on Treatment of Expansion and Cracking of Heated Surface of The World′s First 600 MW Supercritical W-Type Flame Boiler[J]. 2019, 39(4): 38-40.
ZHANG Zhengkun, LONG Heping. Study on Treatment of Expansion and Cracking of Heated Surface of The World′s First 600 MW Supercritical W-Type Flame Boiler[J]. 2019, 39(4): 38-40.DOI:
世界首台600 MW级超临界W型火焰锅炉受热面膨胀拉裂治理研究
摘要
针对一台超临界压力W火焰锅炉本体不同部位水冷壁膨胀拉裂问题
从水动力特性、炉膛温度场、屏间和鳍片温度方面进行分析故障原因
采取安装导向环、开设膨胀缝、优化预埋件结构等措施
解决了水冷壁频繁膨胀拉裂这一问题
提高了锅炉安全稳定性。
Abstract
Aiming at the problem of expansion and cracking of water wall for a supercritical W-type flame boiler body
This paper introduces the reason of expansion cracking in different area of boiler heating surfaces from aspects of hydrodynamic characteristic
furnace temperature distribution
water-wall temperature distribution. The prevention measure of installing guide ring
opening expansion joint and optimizing embedded parts is proposed to solve the frequent expansion cracking