Through the policies issued by various provinces and cities in my country in recent years, it can be seen that my country’s current environmental protection requirements are becoming more and more stringent. Some areas in Beijing have reached the regional emission standard of 30 mg/m3, which is important for sustainable development. Is very helpful. In combination with the current environmental protection policies, great changes have also taken place in the boiler industry. More and more companies require the use of low-nitrogen-emission boilers, while traditional boilers have high pollution rates, large area, and inconvenient use. Multiple shortcomings are gradually eliminated. So, compared with traditional boilers, what are the outstanding advantages of gas-fired low-nitrogen boilers? Let Zhengzhou Fangkuai Boiler Factory provide you with comprehensive answers.
1. The difference in emissions between traditional boilers and gas-fired low-nitrogen boilers
Due to the different combustion methods and furnace structures of stratified, chamber, and circulating fluidized bed boilers, the nitrogen oxide (NOx) emissions of these two types of boilers are also quite different. Generally speaking, when using low nitrogen combustion in the furnace In terms of technology, the original NOx emission of the circulating fluidized bed is low, and the original NOx emission of the layer-burning furnace represented by the chain furnace is slightly lower. The pulverized coal industrial boiler is a room-fired boiler. The higher the original NOx emission, the higher the emission of the domestic low-nitrogen boiler. But greatly reduced.
2. Traditional boilers and gas-fired low-nitrogen boilers use different technologies
Stratum fired, chamber fired, and circulating fluidized bed boilers can adopt different low-nitrogen combustion technologies according to different combustion methods. For stratified fired boilers, air classification and flue gas recirculation are often used to achieve low-nitrogen combustion; Under the influence of recirculation on the combustion of the typical section of the stratified combustion boiler, combined with the air classification technology, the NOx is catalytically reduced by semi-coke; the furnace reduction denitrification technology is an emerging furnace denitrification technology in recent years, and the combustion flame area is sprayed at a reasonable position Ammonia, to achieve direct denitration in the high temperature flame. Low-nitrogen boilers mainly adjust the position and distribution of secondary air outlets and coal feed outlets, or increase flue gas recirculation systems.
3. The safety of traditional boilers and gas-fired low-nitrogen boilers is different
After a large number of experiments on the low-nitrogen combustion technology in the furnace of stratified, room-fired, and circulating fluidized bed boilers, they have been verified in engineering applications. Generally speaking, low-nitrogen boilers have higher safety and are also used by many users. The reason for choosing it.
It can be seen that the gas-fired low-nitrogen boiler is a kind of product that is truly energy-saving and environmentally friendly. The low-nitrogen boiler technology adopted by it has been verified by many tests and engineering applications, and has achieved significant results, not only protecting the environment, but also As far as the users are concerned, energy saving is also achieved, which is a double effect.
