The operating pressure exceeds the design pressure: the biomass boiler has a certain rated working pressure when it is designed. When the actual operating pressure exceeds the design pressure, an explosion accident occurs; the pressure gauge fails, and the safety valve does not operate after the overpressure; the firefighters are off work, the monitoring is insufficient, the main steam valve is closed, and the safety valve fails; the boiler design N is unreasonable and the manufacturing quality is poor . Unqualified quantity, material does not meet the requirements, poor welding quality, no regular maintenance and inspection, long-term non-maintenance, causing boiler corrosion, reducing pressure bearing capacity, etc., resulting in overpressure explosion.
Explosion under normal working pressure: The pressure element of the biomass boiler is defective or damaged, and the explosion occurs gradually to a certain extent. Such as corrosion and wear of steel plates, defects in manufacturing, maintenance and welding, poor accumulation of dirt and heat transfer in the boiler, rapid cooling of equipment caused by illegal water intake when the boiler is short of water, etc., may lead to explosion accidents.
