14th szs gas hot water boiler in pakistan

Factors that affect factors superheated steam temperature changes affect food factory superheated steam boiler plant food temperature variation effects superheated steam boiler temperature variation food factory, 1, 2 changes, and the air volume ratio of 3 changes, burner fuel properties and 4, 6, 7, change the saturated steam temperature change and desuperheating water flow operation mode change in water temperature in the pulverizing system 5, the heating surface cleanliness variation boiler load variations. Change in fuel volatile carbon content, calorific value and the like: 1. Variations in the nature of the fuel. When the roughening coal, fuel combustion in the furnace a long time, the center of the flame increases, the steam temperature. When the fuel water is increased, the heat absorption of water evaporation furnace, the furnace temperature is lowered, the increase in humidity, but also increases the volume of the flue gas, the flue gas flow increases, reducing the superheater heat radiation, convection superheater heat absorption is increased. 2. And change the air volume ratio: when increasing the oxygen content of the furnace, the low temperature due to heat absorption of cold air, the furnace temperature is lowered, the furnace outlet temperature. At a total gas flow is constant, a change will also cause shifts air distribution steam temperature. When a low flow rate is insufficient, part of incomplete combustion of pulverized coal, the flame center is moved upward, the furnace exit gas temperature. 3, changing the operating mode of the burners and pulverizing system: operating system will result in an upper pulverizing the steam temperature is increased, the swing angle of the burner changes, the change in center of the flame, steam temperature changes.

Tail secondary combustion flue how to deal with the phenomenon of a sharp increase in rear of the boiler flue secondary combustion flue temperature location and later. 2, the furnace, the flue abrupt change in negative pressure, flue gas is not tight at the smoke, the Mars. 3, air preheater large current swing bearing housing temperature, severe Jam occurs. 4, air preheater fire alarm issue. 5, steam temperature, economizer outlet water temperature, the air temperature rises abnormally. 6, induced draft fan vanes automatically open a large, Fan current rise. 7, as the combustion side, both sides of the smoke temperature difference increases. Reason 1, through the coarse fine grinding coal, coal poor uniformity, improper adjustment of combustion, combustion of fuel is insufficient, serious mechanical incomplete combustion, and high levels of combustible ash accumulated in the back pass. 2, an oil burner or an oil poor atomization, so that unburned droplets deposited in the flue. 3, prolonged low load operation of boiler, the furnace temperature is too low or too small amount of excess air resulting in incomplete combustion of coal or oil accumulated in the tail. 4, after the shutdown of the fuel leakage into the furnace and accumulates or after shutdown and to insufficient MFT furnace purge unburnt coal or oil accumulation at the end of the tail. 5, soot blower failure, long-term put into operation is not normal. 1 process, when a slight secondary combustion, exhaust gas temperature does not rise within 20 ℃ normal smoking temperature should be checked immediately paragraphs, the combustion site and judge whether the secondary steam soot blowing. (When the exhaust gas temperature rises to 250 ℃) 2, the operation of the back pass and then generating boiler combustion boiler operation should be stopped immediately, immediately stop sending, ID fan and turn off all the smoke and steam soot blowing air damper fire. 3, if the economizer afterburning, until the storage tank level control valve blocking off without pressure, flow rate of feed pump motor start 150t / h Sheung be cooled. 4, air preheater heating surface of the secondary combustion air preheater normal operation, normal operation of the air pre-heater holder; air preheater Jam occurs, the main drive motor and the auxiliary drive motor trip, contact maintenance manual plate moving continuous air preheater rotor. Soot blowing steam into air preheater for extinguishing, into the air preheater for fire extinguishing can not be extinguished. 5, the economizer outlet water temperature close to the inlet temperature (at the economizer secondary combustion), the air preheater inlet gas temperature, exhaust gas temperature, the hot air temperature is lowered to less 80 ℃, each one hole, and the hole is no longer Mars smoke and soot blowing steam stops coming out after water or fire. Open hole inspection manhole and inspection to confirm the secondary combustion goes out, after the flue vent door open to drain water inside the smoke flue opening for ventilation air damper. 6, to be re-combustion is resolved, the flue temperature does not rise and fall when stabilized, before slow regulation of the air, smoke baffle, the necessary air cooling and purging.

Blue Sky Battle horn started, our country constantly walking on the green road. Reduce atmospheric emissions of nitrogen oxides, improve air quality, but also the people a blue sky, the industry has invested in the construction of environmental protection go, Guizhou Baiyun Quan Lake Hotel is no exception. As we all know, fast boiler R & D in the field of clean fuel boiler never stopped, through market research and screening, Guizhou Baiyun Quan Lake Hotel in October 2017 signed a low-nitrogen Thalia T5 series vacuum hot water and fast boiler boiler for hot water supply and heating the hotel.

Although the fuel of 58MW circulating fluidized bed 14th szs hot water boiler in pakistan is also coal,but it adopts CFB circulating fluidized bed combustion technology,and mixture of gas and solid, and the fuel particles and circulating combustion, the fuel particle residence time in the furnace is lengthened, the combustion efficiency can reach 97-99%. The boiler thermal efficiency up to 85%, higher than the national standard of 15-20 percentage points, has remarkable energy saving effect and economic benefits. In the society to reduce the energy waste, but also to reduce dust emissions, the social benefit is great.