Through statistics

the failures frequently occurred in heater system

especially in the high -pressure heater system

to be secondery only after tube - burst of the boiler

taking the second place of troubles in the power plant. Among statistics of various heater troubles

leakage of tubulature occupies the max. proportion. Taking units in Xuzhou Power Plant as example

various leakage phenomena of high-pressure heaters have been presented

and causes leading to said leakages being analysed. In order to ensure decreasing the leakage accidents and protecting safety of the unit

preventive measures for ensuring safe operation of high - pressure heaters have been put forward.