Reasons for the explosion of biomass boilers
For some factories and enterprises that use industrial boilers as heating equipment, they must not only improve the thermal efficiency of the boiler, reduce fuel consumption, but also pay attention to another safety issue, which is to prevent the occurrence of boiler explosion accidents. Although a biomass boiler is one of the environmentally friendly boilers, it is often necessary to pay attention to the occurrence of explosion accidents. After continuous research and inspection, zozen boilers have summarized some reasons for the explosion of birth materials boilers.
1. Combustion and explosion in biomass boiler: The main reason for the explosion in the furnace is that the liquid stays in the furnace all the time, and the explosion occurs when the concentration of combustible substances in the gas reaches a certain level. If the boiler is not purged and the furnace is not started, or if it is operated in accordance with regulations during ignition, a furnace explosion accident is likely to occur.
2. 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 overpressure; the firefighters leave work, insufficient monitoring, the main steam valve is closed, the safety valve fails; the boiler design N is unreasonable, and the manufacturing quality is poor . The quantity is unqualified, the material does not meet the requirements, the welding quality is poor, there is no regular maintenance inspection, and long-term non-repair, which causes corrosion of the boiler and reduces the pressure-bearing capacity, etc., resulting in overpressure explosion.
3. Explosion under normal working pressure: The pressure element of the biomass boiler is defective or damaged, and the explosion gradually occurs to a certain extent. Corrosion and wear of steel plates, defects in manufacturing, maintenance, and welding, poor accumulation of dirt and heat in the boiler, and rapid cooling of equipment caused by illegal water withdrawal when the boiler is short of water can all lead to explosion accidents.
Therefore, when the above situation occurs during the operation of the biomass boiler, relevant measures need to be taken as soon as possible to avoid explosion accidents.