SZS water tube boiler adopts the design idea of ​​waste heat recovery of flue gas cascade. There is a flue gas condenser at the tail of the boiler body, which reduces the flue gas temperature (<70℃), improves the boiler efficiency and reduces the harmful components in the flue gas. The gas water tube boiler adopts micro-positive pressure combustion, and the furnace wall tube is a full-membrane wall structure. It has a certain pressure bearing capacity, and no smoke leakage and air leakage will occur when running in a slightly positive pressure state.

SZS series boilers are self-contained boilers, which can shorten the installation period while meeting the transportation size requirements. At the same time, the aluminum casing and the frame are transported and connected by bolts, which is convenient for disassembly and maintenance, and is convenient for maintenance. The burner of this series of boiler products is fixed on the front wall. After the fuel is ejected from the burner, it burns at a slight positive pressure in the furnace (the first return pass). 180° into the convection tube bundle of the second return, flow to the front of the furnace and enter the horizontal superheater, turn 180 degrees to the left in front of the furnace and enter the convection tube bundle of the economizer (third return), and then pass through the economizer and the condenser to fully exchange heat , and finally enter the chimney through the flue and discharge into the atmosphere.

The water tube steam boiler uses well-known brand burners and reasonable furnace structure to make the fuel burn fully. The composition of the exhaust flue gas is in line with the environmental protection indicators of the national first-class areas, and the noise is also lower than the national standard. The heating surface of the gas water tube boiler is reasonably arranged and the technical parameters are properly selected. The heat transfer area of ​​the boiler is surplus, so it has a certain overload capacity. Boiler flue gas and working medium are arranged in countercurrent, with large average temperature and pressure, good heat transfer, and reasonable selection of furnace volume to ensure full combustion of fuel.

This series of steam boiler insulation materials are made of aluminum silicate felt and ultra-fine glass wool, with a total thickness of about 200mm. Between the two insulation layers is a heat-insulating reflective aluminum foil, which minimizes the heat loss of the boiler. The thermal efficiency is greatly improved, the fuel is saved, and the running cost is low. The condenser not only absorbs a large amount of sensible heat in the flue gas, but also absorbs a large amount of latent heat in the flue gas. The boiler efficiency is higher than that of ordinary boilers, and the condensing waste heat recovery device adopts special acid-resistant and chloride ion corrosion-resistant ND steel, which greatly prolongs the service life of the boiler.

Gas water tube boiler are equipped with explosion-proof doors and furnace pressure monitoring devices to ensure safe and reliable operation. The boiler has a certain pressure bearing capacity, and no smoke leakage and air leakage will occur when running under a slightly positive pressure state. The upper and lower boilers of this series of boilers are equipped with manhole devices, and inspection doors are arranged at the rear of the furnace and on the flue to facilitate maintenance.