Why should gas fired boilers control nitrogen oxides?

Release time:

2022-10-24

We use 304 stainless steel shell with professional hydrodynamic design to make the gas pass through the catalyst evenly to achieve the ideal denitration rate and prevent ammonia escape. The modular design is based on N+1 structure. Each layer can be flexibly drawn out and reserved for upgrading environmental protection emissions. The urea and compressed air supply system is combined with the PLC control system to monitor the operation status of core components. The system collects the exhaust temperature before and after the catalyst, the NOx concentration before and after the catalyst, the O2 concentration before and after the catalyst, the flue gas flow, the urea tank liquid level, calculates the denitration rate, and calculates the converted concentration of NOx emission at the outlet. If you need to control the nitrogen oxides of the gas boiler, you can find us, We can help you customize the solution to solve the problem of NOx control.

The air pollution is severe, and the prevention and control of waste gas emission pollution is a problem that we have been concerned about. The low nitrogen transformation of gas fired boiler is aimed at reducing the content of nitrogen oxides in boiler flue gas to achieve the effect of purifying the environment. In order to reduce the emission of NO through an economic and effective way, it is an international consensus to consider various relevant factors and take comprehensive measures.

Nitrogen oxides are mainly compounds composed of nitrogen oxides, such as NO, NO2, N2O5, etc. Nitrogen oxides NOx usually refers to NO and NO2.

1、 Effects of nitrogen oxides on human body.

Nitrogen oxides can harm our body and mind, stimulate our lungs, and cause respiratory diseases, asthma and other respiratory problems. Asthmatic patients are more vulnerable to the impact of nitrogen dioxide. For children, it will cause great damage to the lung development, and nitrogen oxide treatment is extremely urgent.

2、 Methods to reduce NOx emissions

The reduction of NOx emission from gas fired boilers is mainly due to NOx generated during combustion, so it is necessary to improve combustion technology to reduce NOx. For gas-fired boilers, nitrogen oxides are mainly generated by the oxidation of nitrogen in the air at high temperatures. The NOx thus generated is called thermally induced NOx. Its generation is a function of temperature of flame structure. SCR treatment does not need to modify the boiler body, only for tail gas treatment.

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