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Gas Fired Boiler

Gas Fired Boiler

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Cleaning of gas fired boiler

After a long period of operation, scales and rusts inevitably occur. The main reason for scales formation in gas fired boilers is that there is hardness in the feed water. After continuous evaporation and concentration at high temperature and pressure, a series of physical and chemical reactions occur in the boilers, and finally hard and dense scales are formed on the heating surface. As a result, the heat transfer efficiency decreases and the corrosion factor under scale leads to the decrease of heat absorption in the water wall furnace of the boiler, the increase of the outlet temperature of the furnace, and the increase of the loss of the gas fired boiler. At the same time, the scaling in the water wall reduces the heat transfer effect, which may lead to the increase of the wall temperature of the water wall and the bursting of the water wall, affecting the safe operation of the boiler. Scale is the most harmful factor of boilers and the main cause of boiler accidents. Its harmfulness is mainly manifested in the waste of a large amount of fuel. Because the thermal conductivity of scale is only one-tenth of that of steel, heat transfer will be hindered by scaling on the heating surface. In order to maintain a certain output of the boiler, it is necessary to raise the temperature of the fire side, thus causing heat loss by radiation and smoke exhaust. The gas fired boiler can be cleaned with high-efficiency, environmental-friendly and non-corrosive cleaning agent to expose the primary metal color of the equipment tubes and reduce the impact of scaling and biological algae sludge. At the same time, it can peel off iron oxide and ferrous oxide, prolong the service life of gas-fired boilers, reduce energy consumption and improve productivity.

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