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Features of Gas Fired Steam Boiler

 The optimized utilization of the heating area of ​​the gas-fired steam boiler is based on the principle that the heat exchange in the furnace is proportional to the 4th power of the temperature. The furnace has a large furnace space and a large effective radiant heating surface. The heat absorption of the furnace radiation accounts for the proportion of the total heat absorption. Big. The air distribution in the furnace is uniform, and the temperature field in the furnace is extremely uniform. Especially when the corrugated furnace is arranged near the flame center, the convection heat exchange is more intense.



The WNS series steam boiler flue tube bundle is a two-pass, low-velocity design, which effectively reduces the flue gas resistance of the body, and can significantly reduce the operating power consumption of the blower, and the boiler does not require an induced draft fan. The heat dissipation loss is small, and higher thermal efficiency can be obtained than other structures. Compared with the dry back type, there is no heat dissipation of the rear smoke box cover.

The WNS gas-fired steam boiler is a downstream three-pass shell-type full wet back corrugated furnace pyrotechnic tube boiler. The fuel gas and oil are sprayed and atomized by the burner and burned in the corrugated furnace with slight positive pressure. The high-temperature flue gas moves backwards along the furnace wall through the return chamber and turns forward from the first flue tube bundle and passes through the front smoke box. Turn 180° to enter the second smoke tube bundle, and after convective heat exchange to the rear smoke box, it is discharged into the atmosphere through the chimney. The boiler feed water is directly pumped into the drum from the deaeration water tank. The boiler is equipped with imported burners, fully automatic program control, and high degree of automation, so that the boiler can achieve the best combustion effect.



This boiler product adopts a downstream full wet back structure, and the flue gas inlet temperature to the tube sheet is lower than 1000 ℃, which can avoid the phenomenon of supercooled boiling on the inner wall of the tube sheet and the rapid formation of scale, which greatly improves the front tube of the back combustion chamber. The working conditions of the plate can reduce the cracking accident of the tube plate.

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