XINLI BOILER

Master these points and quickly improve the combustion efficiency of biomass hot water boilers

05 Jul, 2021

　　Technology is gradually advancing. In the past many years, cities have had a large number of coal-fired boilers, most of which are distributed in and around the city. Because they burn inferior coal with high sulfur content, the boilers have no desulfurization device and operation Low-level factors such as black smoke and sulfur pollution directly affect the air quality in cities and surrounding areas. For this reason, the call for the cancellation of urban coal boilers and the conversion of coal to gas and electricity is very high, and many cities have taken actions. In areas where energy sources are tight, electricity prices are expensive, and urban heat cannot be reached, little effect has been achieved. Substituting clean biomass fuels for coal, using biomass hot water boilers in urban boilers has become the primary choice. However, most of the current boiler structures are not suitable for the use of biomass fuel (there are still black smoke, dust pollution, etc.), and the biomass-specific fuel combustion device solves the combustion problem of biomass fuel in the boiler. According to the characteristics of high volatile content of biomass fuel, it comprehensively applies a variety of clean combustion technologies such as anti-burning method, coal-to-gas method, and suspension combustion, so that biomass fuel can be fully burned and the essential problem of black smoke is solved.

　　1. Sufficient oxygen: If the excess air coefficient is too small, that is, the air supply is insufficient, it will increase the solid incomplete combustion heat loss q4 and the combustible gas incomplete combustion heat loss q3, which will reduce the combustion efficiency; if the excess air coefficient is too large, It will reduce the furnace temperature and increase the heat loss of insufficient combustion. The excess air coefficient makes the sum of q2+q3+q4 the smallest value.

　　2. Adopt anti-scaling and descaling technology: By using biomass hot water boiler descaling agent and electronic anti-scaling device, the water vapor circulation system is optimized, and the boiler's blowdown rate is reasonably controlled, thereby reducing scale and increasing boiler thermal efficiency.

　　3. Keep the flame front position of the biomass heating boiler fuel reasonable. The flame front should be located between the grate and the middle grate, and the flame on the grate is full.