Shanxi steam boiler manufacturer

The new DZH steam boiler of Shanxi steam boiler manufacturer is a single-drum vertical water-fired tube shell boiler. The combustion equipment is an active grate. The water-cooled wall on the left and right sides of the furnace is a radiant heating surface, and the two-wing flue and the internal threaded pipe of the drum are convective heating surfaces. The front and rear furnace walls and the water-cooled walls on both sides are made of refractory bricks.


The new DZH steam boiler is a single-drum vertical water-fired tube boiler. The combustion equipment is an active grate. The water-cooled wall on the left and right sides of the furnace is a radiant heating surface, and the two-wing flue and the internal threaded pipe of the drum are convective heating surfaces. The front and rear furnace walls and the water-cooled walls on both sides are made of refractory bricks.

The boiler adopts the technology of arched tube plate and threaded tobacco pipe to solve the problem of tube plate crack of the shell-and-tube boiler, bulging in the lower part of the drum, low thermal efficiency and poor adaptability of coal quality.

burning process:

The fuel enters the furnace and burns on the grate. The produced flue gas enters the two-wing convection tube bundle along the bottom of the drum through the smoke outlet on the middle partition wall, enters the threaded tobacco pipe through the front smoke box, passes through the dust collector, and is drawn by the induced draft fan. Discharged into the atmosphere through the chimney.

Technical features:

(1) The arch tube tube and the threaded tobacco tube are used to form the drum tube, so that the drum tube is changed from the quasi-steel body to the quasi-elastic body structure, the pulling members of the tube plate area are eliminated, and the stress is reduced. The pipe inside the pipesheet was changed from two return strokes to a single return stroke, which solved the problem of cracks in the tubesheet.

(2) Since the lower part of the drum is arranged with the rising pipe row, the dead water area at the bottom of the drum is eliminated, so that the sludge is not easy to be deposited, and the high temperature zone of the drum can be well cooled, and the lower drum of the drum is prevented.

(3) The high-efficiency heat transfer thread pipe is used to obtain the effect of strengthening heat transfer, which achieves the characteristics of heating and boosting the boiler, and improves the thermal efficiency of the boiler.

(4), compact structure, compared with the same type of boiler, the external size is small, saving investment in the boiler house infrastructure.

(5), stable operation, convenient adjustment, and sufficient output. With 110% overload capacity.

(6), using a threaded pipe to enhance heat transfer, improve the heat transfer coefficient and thermal efficiency, because the flue gas is disturbed in the pipe. The smoke pipe is not easy to accumulate dust, and it plays a role of self-cleaning.

(7) The eight-character wall and the outlet smokestack in the furnace have certain dust-reducing effects. The original dust emission concentration of the boiler is controlled below the standard, which ensures that the boiler soot emission meets the national environmental protection regulations.