Our company (Datang Wu'an Power Generation Co., Ltd.) is operating two 1100T/H circulating fluidized bed boilers, units 1 and 2 both completed 168 hours trial run in December 2012 and were put into operation successively. Due to the special characteristics of CFB boiler combustion method, the material concentration in the combustion chamber is high, and the boiler water-cooled wall is always subjected to a large amount of material flow scouring and wear, and the water-cooled wall tubes are worn in many places during normal operation, especially the local wear in the upper 40-70mm of the original adiabatic anti-friction beam of the furnace chamber, and the side wear of the flue window at the exit of the furnace chamber is serious, which brings great potential danger to the safe production and economic operation of our company.
Our boiler used Wuhan Yongping Technology Co., Ltd.'s pot 9 furnace inflow anti-wear (i.e. heating surface optimization and efficiency) technology in 2014 and 2016 respectively, and the boiler heating surface wear is almost "0" in the past few years of operation, and the heating surface of the added inflow anti-wear plate has good thermal conductivity, and the boiler 11 heating surface has been optimized after the addition, which has improved the boiler efficiency compared with the original adiabatic anti-wear beam, and no wear leakage has occurred again in the anti-wear area so far.
Our company hereby proves that the water-cooled wall inflow anti-wear (i.e. heating surface optimization and efficiency enhancement) technology of Wuhan Yongping Technology Co.
Datang Wu'an Power Generation Co.
March 2019
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