Daqing steam generator, steam generator sandwich pot, 05 tons of steam generator

1. waste fuels, reducing thermal efficiency because the thermal conductivity of the scale than the thermal conductivity of steel fractional times to hundreds of times. Therefore, when a steam boiler scale knot, the heat transfer performance of a steam boiler heating surface is deteriorated, the heat released from fuel combustion can not be effectively delivered to boiler water a lot of heat was taken away smoke, resulting in exhaust temperature, exhaust Smoke and heat loss increases, reducing the thermal efficiency of the furnace. In this case, in order to ensure the parameter steam boiler, it must be adding more fuel, increase the temperature of the furnace and flue gas temperature, resulting in wasted fuel. It was estimated that the furnace heating surface has a 1mm thick knot of scale, waste fuel from about 3% to 5%. 2. The impact the safe operation of steam boiler scale often generate a high thermal load of the heating surface. Because of the scale thermal performance is poor, resulting in greatly increased local temperature metal wall. When the temperature exceeds the allowable temperature metal can bear, the metal due to overheating creep strength decreases in the boiler operating pressure, the metal will occur drum kits, perforation and rupture, affecting the safe operation. 3. The scale can lead to metal corrosion under the scale in the heating surface has attached conditions scale, from the scale of the hole, the gap pot of water infiltration, rapid evaporation deposition of scale between the heating surface. In the scale layer, pot of water can be concentrated to a high concentration. Some of the material at high temperature and high concentrations of conditions would have serious steam boiler heating surface corrosion, such as NaOH and the like. Scaling, corrosion mutually reinforcing process, will soon lead to damage to the heating surface of the metal to cause the occurrence of tube rupture. 1, fuel gas-fired boiler during operation Note the following points: (1) does not allow pressurized combustion or furnace smoke. (2) Fuel gas-fired boiler at the bottom of the plane can not land on the water, to prevent moisture corrosion. 2, the boiler runs every 2-3 weeks, should be checked again. 3, boiler every 3-6 months, should conduct a comprehensive inspection and maintenance shutdown. (1) internal and external boiler inspection, such as compression weld parts, steel inside and outside for corrosion phenomenon, if found serious flaws should be repaired, if the defect is not serious until the next time also repair shutdown, if there is suspicious, but does not affect safety during production, should be made to record for future reference. (2) checked the water in the boiler primer coating to prevent corrosion. 4, boilers and boiler base paint at least once a year. 5, the fuel gas boiler often of unused Maintenance: dry and wet two kinds of shutdown more than a month, should be taken care of dry method, the following can be wet month maintenance shutdown method. LSS is a vertical-type oil or gas boiler combustion bent water tube boilers. Biasing structure using curved pipes, high temperature discharged from the burner flame first scour furnace smoke pipe, and then enter the rotation after the second return from the smoke chamber consisting of curved pipes, www.zhengqifashengqi.com through the chimney into the atmosphere. Boiler equipped with a removable mosaic structure, the boiler maintenance is very convenient. Boilers with good technical performance burners, combustion using automatic ratio adjustment, feedwater automatic control, program start and stop, automatic operation and other advanced technologies, and has low water level alarm and low water level, high steam pressure, turn off automatic protection function . The boiler has a compact, safe, reliable, simple, quick to install, less pollution, low noise, high efficiency. This is common in industrial boilers multiple accidents, according to statistics, a serious water shortage accident occurred across China, accounting for about 56% of the total number of boiler accident. Boiler serious water shortage accident, make boiler pressure parts large deformation and failure, if not handled properly, can lead to cracking of an explosion. Such as: a DZG2-0.686-WⅡ boiler fireman on duty after midnight to sleep because of serious water shortage caused by the accident happened boiler boiler pressure parts damaged. When the boiler water, the following phenomena: (1) water table level unseen, glass water table (the board) white; (2) water level alarm emits low level audible and visual alarm signals; (3) superheater boilers, superheated steam temperature rise; boiler (4) is equipped with meter, steam flow is greater than the water flow; (5) serious, boiler room smell the burning smell and smoke; inside (6) of the furnace heating surface deformation, as well as the occurrence of burst pipes or pull off the expander. Approach is that after the occurrence of the boiler water, should immediately stop the supply of fuel, stopped blowing, and should be immediately identified as mild or severe water shortage, if slightly dry, and not because of the water supply system failure, leak or compression caused by sewage leaks, you can continue to the normal water level, put into normal operation. If it is a serious water shortage, we must press the emergency shutdown approach, and go down to the pot and the water is prohibited.