Fri. Nov 1st, 2024

SZL series water tube boiler water – cooled arch and membrane – type water – cooled wall assembly boiler is a patent product. This type of boiler has the advantages of high efficiency, strong overload capacity, wide adaptability of coal and advanced level. Industrial water tube boiler has the characteristics of high automation level, safe and efficient operation, convenient installation and so on. The design optimization of this type of boiler solves the problem of easy coking of the boiler, improves the thermal efficiency significantly and saves the fuel cost.

 

Industrial water tube boiler
Industrial water tube boiler

 

The water wall on both sides of the furnace of this series of boiler products adopts membrane water wall structure. The water wall pipe of the front and back wall of the furnace extends downward to the upper part of the grate to form the front and back arch, which not only increases the sealing performance of the boiler, but also increases the volume of the furnace and the heating surface, and strengthens the strength of the back arch. The combustion fuel of the boiler from the coal hopper fell on the grate, with the grate into the furnace after combustion, flue gas into the convection tube bundle area after the smoke wall, flue gas flow to the “S” type turning. Then the use of inertia to separate the dust in the flue gas into the four gravity type automatic ash hopper set below, with the grate running and cinder into the slag hopper, from the slag machine discharge furnace body.

Water tube boilers has high automation level, safe and stable operation, strong fuel applicability and high fume emission standard. After the furnace for the burning chamber, convection tube bundle, tail with economizer. The flue gas enters the tail flue through the furnace, the embers chamber, the convection tube bundle and the economizer, and is discharged into the atmosphere through the dust collector, induced draft fan and chimney. The front wall is arranged with secondary air, controlled by valves, which is put into use when burning biomass fuel to strengthen combustion, so that the fuel is fully burned out and the combustion efficiency is improved. The industrial water tube boiler adopts higher feed port to meet the demand of fuel.

Its convection layout heating surface heat transfer efficiency is high, the efficiency characteristics of the boiler operation is stable and has a certain overload operation capacity. This type of boiler has reasonable water circulation system, large water capacity, large steam space and good steam quality. The cross section ratio between the descending surface and the ascending tube of each heating surface is reasonable and the combustion condition is stable. The matching of front and back arches is reasonable, the coverage rate of furnace arches is large, the furnace temperature is high, the combustible volatiles of coal are more than 20% can be burned.

 

Water tube boilers
Water tube boilers

 

The air chambers of this series of boilers can be artificially adjusted according to the air quantity required in each combustion stage of the fuel, and the transverse air pressure is consistent, so there will be no partial burning phenomenon. The lower part of each air chamber is equipped with the suction type cast iron ash discharging door, which is not easy to deform, easy to use and good sealing performance. It skillfully applies the water-cooled arch technology of the combustion system of large chain grate boiler and the membrane water-cooled wall technology to the boiler assembly, and the technical index is at the advanced level. Industrial water tube boiler has the advantages of high efficiency, strong overload capacity, wide adaptability of coal, and advanced level.

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