The harm of scale to biomass steam generators

1. Reduced the thermal efficiency of biomass steam generators and wasted a large amount of fuel. After scaling, the heat transfer performance of the heating surface deteriorates, and during fuel combustion

2. Causing metal overheating, reducing strength, and endangering safety. The steel used for the heating surface of boilers is generally carbon steel. During use,electric steam generatorThe metal wall temperature is allowed to be below 450 ℃. During normal operation of the boiler, the metal wall temperature is generally below 280 ℃.

3. Disrupt the water cycle. There are two types of boiler water circulation methods: natural water circulation and forced water circulation. The former is caused by the pressure difference between the riser and downcomer, resulting in water circulation. The latter mainly relies on the mechanical power of the pump to force circulation.

4. Increase maintenance volume and waste a lot of money. Once the boiler scales, it must be cleaned to ensure safe and economical operation of the boiler. Therefore, it is necessary to use chemical agents such as acid and alkali to eliminate scale.