超临界及超超临界锅炉受热面内部清洁度控制

Supercritical and ultra-supercritical boiler unit cleanliness control

目前,火电锅炉机组在温度、压力等参数方面不断提高,锅炉因异物堵塞引起了受热面管子过热超温爆管情况较为频繁,因此对受热面内部清洁度要求越来越高,需要在设备生产制造、运输及倒运、安装及调试、检修各个环节进行清洁度控制。本文对不同阶段的锅炉机组清洁度控制进行介绍。

At present,the thermal power boiler unit continues to increase in terms of temperature,pressure and other parameters,the boiler due to foreign matter blockage caused the heating surface of the tube overheating over-temperature burst tube is more frequent,so the internal cleanliness of the heating surface is increasingly demanding,the need for equipment production Manufacturing,transportation and transportation,installation and commissioning,and maintenance are all aspects of cleanliness control. This article describes the boiler unit cleanliness control at different stages of the process.