250 Ton Coal Fired Cfb Boiler
Personnel and to avoid faulty gas 250 ton coal fired cfb boiler gas boiler prone to some fault in the use of the process in order to avoid it fails, we have to understand some of the considerations when using. When using a gas boiler, we should always carry out its care and maintenance of local failure timely maintenance and replacement, make sure it is working properly. Circulation pump pressure constant, the current increases and the flow drops, deterioration of the thermally conductive fluid, the viscosity increased, should be replaced or regenerated. New heat transfer fluid as a result of decomposition of aqueous or excluded gases in the system, should immediately open the vent valve of the exhaust gas. When the current is lower than normal circulation pump, the circulation pump efficiency is decreased, the flow rate decline may be heating pipes plug fouling, and should be cleaned. Low temperature liquid phase heat carrier outlet of the furnace, for lack of heat, and the exhaust gas temperature exceeds 300 ℃, the main problem is the fouling, soot blowing should be. As low exhaust gas temperature, the main issue is burning, mainly lack of the wind. Although the pressure furnace, the blast volume is not open, the furnace temperature is low, combustion insufficient strength. We should focus on rear seal machine check furnace slag, dust, etc. whether closing the ash outlet is good, with or without cold air leakage into large. Before and after the filter differential pressure increases, the pump inlet pressure drops, the filter may be stuck, the opening of the bypass, disassemble and clean the filter. Grate stuck. The reason is often broken or grate grate fall loose pins; coal grate has stuck to metallic inclusions; arched grate; slag filter (Eagles iron) sink tip and the grate stuck. Processing method: reverse hand grate plate debris removal, replacement breaking grate after the start, then jammed as startup, stop the rotation of the reasons detailed inspection to resolve. The iron eagle sink, both sides can pull the fire door pull hook n. Grate stop turning, it may be too loose chain, and sprocket meshing well, or badly worn sprocket, and chain-linked bad; the adjustment screws on both sides to re-adjust the tension grate, if still does not work, you need to exchange sprocket.
IBR Coal & Wood fired 250 ton coal fired cfb boilers manufactured by us meet the market need of manual stoker firing with low initial cost. Simplicity of operation & ability to handle inferior coals are its prime features.
Advantages of heating Boiler and Gas-fired heating BoilerOil-fired and gas-fired heating 250 ton coal fired cfb boilers all belong to chamber-fired boilers. The fuels used are injected into the furnace by burners and no cinder will be produced after combustion. This type of heating boiler does not require the complex and huge crushing of coal-fired boilers, facilities for conveying tender coal and equipment for burning and dedusting, so it is compact in structure, small in size, light in weight, small in land area, small in pollution and high in automation. Cities and boiler houses that require high environmental protection and prohibit the use of coal-fired boilers are used in large quantities in areas and units with high technical requirements for heating regulation. Medium and small boilers generally use light diesel oil, large-scale oil-fired boilers burn more heavy oil. Due to combustion The boiling point of oil is always lower than its ignition point, so the fuel is usually gaseous. After heating, the fuel is vaporized into oil vapor. After the mixture with air reaches a certain temperature, it starts to ignite and burn. In order to enhance the degree of vaporization of fuel, the fuel is often atomized into small droplets into a man-made furnace, heated by high-temperature flue gas in the furnace, and quickly vaporized and mixed with oxygen in the surrounding air, starting to ignite and burn. Some of the heat after burning is passed to the oil droplets, which vaporize and burn until they are exhausted.
Recently, the Changsha City issued a notice on the transformation of low nitrogen gas 250 ton coal fired cfb boiler related documents. Details are as follows:
1, a total transformation time for two years, 2019-2020 years.
2, the transformation range: High-tech Zone, Furong District, Tianxin, Kaifu District, Yuhua District, Yuelu District administrative region, the city of hope Gaotangling Subdistrict high Tong Ling Area, Osan streets Yujia slope Area, Lake Daze in the region ban on burning streets, white sandbar streets, moon Island street, Jinshan bridge street, Golden Park street, Xingsha streets of Changsha County, Hunan Long street, Quantang streets, Langli streets, long queue streets, such as the scope of the existing town of Sha It is not less than 1 ton of steam (greater than or equal to the rated power or hot water boiler, organic heat carrier in the boiler 0.7MW) gas boiler (facility) (boiler equipment including special directory outside the range) low nitrogen unit owners embodiments transformation. Or more areas outside the area of self-implementation.
3, the transformation of the standard limits: the new replacement and overall gas boiler Changsha NOx emission is less than 30mg / Nm³; gas boiler (facility) was transformed with the nitrogen oxides emission concentration of less than 50mg / m³.
4, 2019 Task: In addition to the Furong District, Yuhua District, within a range of high-pollution fuel combustion zone ban other jurisdictions to start the transformation from June 2019, 50% complete gas-fired boiler (facilities) low nitrogen transformation and complete acceptance.
5, 2020 Tasks: Before the end of October 2020 to complete all gas boilers (facilities) within the range of high-pollution fuel combustion zone ban on low-nitrogen transformation and complete acceptance.