电厂供热运行中易出事件原因分析及防范措施

Reason Analysis and Preventive Measures of the Event in the Operation of the Heat Supply Unit

大机组供热改造后,2台及以上机组并列切换过程中,易出现1台机组真空快速降低的现象,本文主要分析了供热切换过程中机组真空快速降低的原因及空气来源,然后依据此原因制定了供热备用期间及投停过程中的防范措施。

After the improvement of large unit to supply heat,in the switching process of two or more units by juxtaposed load,appear a rapid reduction of unit vacuum,this paper mainly analyzed the reason of unit vacuum rapid decrease in the process of switching heating load and the air source,and then on the basis of this reason,developed preventive measures during heating load standby and being on or off.