This paper analyzes the causes for the leakage of low temperature economizer in No. 7 boiler, and that was mainly due to ashes wear, secondly economizer design and installation of the existence smoke corridor, so that the wear is intensified.

• 摘要通过7%23锅炉低温省煤器泄漏的原因，指出主要是灰粒磨损所致，其次为省煤器设计安装时存在烟气走廊使磨损加剧。