What are the main causes of water-cooled wall tube leakage due to wear and tear of circulating fluidized bed boilers

       Circulating fluidized bed boiler is widely used in modern industrial production, especially like thermal power industry circulating fluidized bed boiler is more and more widely used. Mainly because circulating fluidized bed boilers are more efficient, energy-saving and environmentally friendly than traditional pulverized coal boilers, especially in today's increasingly stringent environmental protection policies, circulating fluidized bed boilers have been used like never before.

　　Although circulating fluidized bed boilers have many advantages and are adapted to modern industrial production. But circulating fluidized bed boilers also have a big disadvantage, that is, the boiler wear problem. After research and analysis, it is found that circulating fluidized bed boiler water cooling wall wear is one of its main wear. Circulating fluidized bed boiler wear has been plagued by enterprise safety production, today I give you to talk about what are the main causes of water-cooled wall tube leakage because of circulating fluidized bed boiler wear!

　　Circulating fluidized bed boiler water-cooled wall for a long time by the material washing, so the water-cooled wall burst tube is mainly due to the wear and tear of the water wall, thinning.

　　Specifically include:

　　1) the four corners of the furnace chamber water-cooled wall due to irregular wear resulting in leakage.

　　2) the top of the furnace chamber due to poor sealing leakage of ash caused by leakage.

　　3)Leakage caused by water-cooled wall tube being pulled apart due to obstructed expansion at the furnace outlet.

　　4)Leakage due to expansion of the slag drop tube and the connection between the slag drop tube and the air distribution plate.

　　5) dense phase area, the furnace chamber exit water-cooled wall laying refractory off the water-cooled wall tube wear leakage.

　　6) water-cooled wall fins due to welding quality and wear and ash leakage, resulting in water-cooled wall wear and leakage.

　　7) because of the coal fall pipe sowing coal wind "tongue" wear and even wear through, so that the "tongue" around the water-cooled wall wear leakage.

　　8) furnace exit near the back wall, side walls due to changes in the direction of the flue gas caused by the water-cooled wall bias grinding leakage.

　　Analysis of the causes of circulating fluidized bed boiler wear formation, find reasonable anti-wear measures, can effectively solve the wear problem, greatly improve the safety of circulating fluidized bed boiler production, to save economic losses for the enterprise.