The Hazards of scale - Boiler softened Water Equipment-Yuanlai Water Treatment

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The Hazards of scale - Boiler softened Water Equipment

Released Date: May 05,2016 Article Source: Yuanlai Water Treatment

1. Fuel waste - The thermal conductivity of scale in boiler softening water equipment is very poor. It is dozens of times or even lower than that of steel. The presence of scale will deteriorate the heat transfer condition of the boiler's heating surface, increase the flue gas temperature, and increase fuel consumption. According to experiments, if there is 1mm thick scale on the inner wall of the boiler, 3-5% more coal will be consumed. 2. Damaging the heating surface - Due to the poor thermal conductivity of scale in the boiler softening water equipment, and the fact that scale is prone to form on the metal heating surface with a high heat load. At this point, the temperature of the metal wall at the scaling area will be too high, causing a decrease in metal strength. Under the action of pressure, the overheated area will deform, bulge, and even lead to accidents such as explosions. At the same time, scale can also cause under-deposit corrosion of metals. Under the condition that there is scale adhering to the water-cooled wall tubes of the boiler

　　1Waste of fuel-Boiler water softening equipment

　　The thermal conductivity of scale is very poor. Its thermal conductivity is dozens of times or even lower than that of steel. The presence of scale will deteriorate the heat transfer condition of the boiler's heating surface, increase the flue gas temperature and boost fuel consumption. According to the test, if there are any on the inner wall of the boiler1mmThick scale will consume more coal3-5%.

　　2Damage the heating surface-Boiler water softening equipment

　　Due to the poor thermal conductivity of scale and its tendency to form on metal heating surfaces with high heat loads. At this point, the temperature of the metal wall at the scaling area will be too high, causing a decrease in metal strength. Under the action of pressure, the overheated area will deform, bulge, and even lead to accidents such as explosions.

　　At the same time, scale can also cause under-deposit corrosion of metals. Under the condition that there is scale adhering to the water-cooled wall tubes of the boiler, the boiler water seeping in through the holes and gaps of the scale evaporates rapidly between the deposited scale layer and the tube wall. Under the scale layer, the pot water can be concentrated to a very high concentration. Among them, some substances can cause severe corrosion to the metal of the pipe wall under high-temperature and high-concentration conditions, such asNaOHWait. Scaling

　　The corrosion process is mutual and can quickly lead to the damage of water-cooled wall pipes, and even cause pipe burst accidents.

　　3Reduce the output of the boiler-Boiler water softening equipment

　　After a boiler is scaled, its heat transfer performance deteriorates. To reach the rated evaporation capacity or rated heat supply capacity of the boiler, more fuel needs to be consumed. However, as the thickness of the scale increases and the volume of the furnace and the area of the grate are fixed, fuel consumption is restricted. Therefore, the output of the boiler will decrease.

　　4Reduce the service life of the boiler

　　The scale on the heating surface of the boiler must be thoroughly cleaned to ensure the safe and economical operation of the boiler. Whether it is mechanical, manual or chemical agent descaling, it will affect the service life of the boiler.

Keywords: Water Softening Equipment Automatic Water Softener Reverse Osmosis Equipment Manufacturer of Water Treatment Equipment

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