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神华国华沧东发电有限责任公司二期工程2×660MW超临界直流锅炉,其中#4锅炉在投产初期发生过多次因承压受热面超温爆管事故严重影响机组的安全稳定运行。因此解决超温问题十分重要。本文简单分析了直流锅炉在开机及正常运行过程中受热面超温的原因,及防范措施。
Shenhua Guo Cangdong East Power Generation Co., Ltd. 2 × 660MW supercritical once-through boiler, in which # 4 boiler occurred many times in the early production due to pressure heating surface super-temperature squib accident seriously affect the safe and stable operation of the unit. Therefore, to solve the problem of over-temperature is very important. This article briefly analyzes the reason why the superheating of the heated surface of the once-through boilers and their precautions during startup and normal operation.