Performance Characteristics of Condensing Oil-Fired Steam Boiler

The oil-fired steam boiler adopts a wet-back three-pass structure, and the smoke pipes are symmetrically arranged and evenly distributed, which can improve the stress distribution of the tube sheet. The wet back structure combustion chamber is completely immersed in water, the cooling condition is good, the rear tube plate is not washed by high-temperature flue gas, and the service life is long.

The application of the condensing steam boiler corrugated bladder not only increases the heating surface, but also relieves the damage to the combustion chamber that may be caused by thermal expansion and contraction, and improves the strength. The front and rear smoke boxes are connected by hinges, which can be opened and repaired easily. The large steam space reduces the speed of steam leaving the water surface, and the built-in steam-water separation device ensures a stable output of steam.

This series of steam boilers uses threaded smoke tubes to enhance the heat exchange effect and improve the thermal efficiency. The applied digital control technology can remotely control the combustion process. The degree of automation is high, all kinds of protection are perfect, and automatic control of water level and pressure is realized.

Some harmful components such as CO2, NOX, SO2 in the flue gas of oil-fired boilers are dissolved in the condensed water, which effectively reduces the emission of air pollutants. At the same time, large-size furnace structure and flue gas recirculation technology are adopted. For oil-fired boilers, ultra-low nitrogen emissions can be achieved, NOX emissions ≤30mg/Nm3, which fully meets the increasingly stringent national environmental protection requirements.

The smoke outlet of the condensing oil-fired boiler can be equipped with a condensing heat exchanger made of special materials to reduce the sensible heat and latent heat in the flue gas and improve the efficiency of the boiler (above 95). The flue is equipped with a bypass flue, which can be adjusted according to the size of the boiler load, whether to put the condenser into use.

The spiral fin tube and shell of this series of boiler economizers and condensers are made of corrosion-resistant ND steel material, which greatly improves the service life of the equipment. The combination of intelligent combustion control and fully automatic safety chain protection system ensures economical, environmentally friendly and safe operation.

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