What are the technical advantages of boiler spraying?

       Boiler spraying action is under high temperature and high pressure, there is corrosion of salt battery and oxygen in water body. Spraying is to add a protective film on the boiler to separate the metal from these media, protect the boiler and prolong its life.

What is boiler spraying? What are the advantages of boiler spraying?

The inspection of the high temperature reheater is mainly to check whether the tube rows are uniform, whether there is deformation and displacement, whether there is falling off and wear. Comprehensive practical research found that the serious fault occurred in the high temperature reheater at the dissimilar steel welding joint under the ceiling of the outlet pipe of the high temperature reheater. Because the two sides of the welding joint are made of T91 material, the distance between the tube panels is not the same during installation, so the effect of heat will be different. The tube with a small distance will expand after being heated, and at the same time, there will be large gaps in the position of dissimilar welding joints. stress.



The key inspection parts of the boiler water wall include whether the water wall pipe around the soot blower is damaged, whether the water wall of the cold ash hopper is damaged, the fire at the water joint of the water wall, and the coking and wear during the combustion process. , The welding seam of the folding flame angle and the vertical water wall suspension pipe of the rear wall, etc.

The boiler is sprayed on the inner wall of the furnace, which can increase the blackness of the inner wall of the furnace, improve the absorption rate and emissivity of the furnace lining to infrared radiation, make the radiation field and temperature field uniform, change the infrared heating spectrum, and improve the furnace lining in the 1-5um band. Emissivity, strengthen the effective absorption of the workpiece or the radiation surface, greatly strengthen the heat exchange process in the furnace, so that the workpiece is quickly heated, shorten the production cycle, and improve the thermal efficiency of the furnace. It can reduce the external temperature of the kiln by 5-45 °C, increase the temperature in the furnace by 20-150 °C, the energy saving rate is lower than 5%, and the service life of the furnace body and refractory insulation materials can be extended by 2-5 times. An ideal energy saving measure!