With the increasing tension of air pollution, the national and local policies and regulations on management pollution are becoming more and more severe. On this basis, how to reform the old steam pot has become a question faced by enterprises. At present, coal-fired steam boiler and gas-fired steam boiler are the most important parts of the old steam boiler. There are differences between the two kinds of steam boiler innovation methods.
I. innovation of coal-fired boiler
1. Mediation and innovation in the steam pot
For the newly purchased coal-fired boiler with short application time limit, because its construction is enough to support the innovation of the boiler, when carrying out the innovation, we should generally consider all aspects of the original, policy, etc., be able to select the innovation of fuel oil, biological resources, electricity, gas and other methods, and satisfy the government's request for emissions in the environment of preserving the boiler's body and unilateral original construction.
2. Purchase new type of steam pot
As for the coal-fired boiler with a long service life and a tight aging construction, for the boiler with a high innovation cost and a failure to meet the normal manufacturing needs after innovation, it is necessary to purchase a new boiler. At first, it can avoid the further harsh requirements of the emission standard after innovation. Secondly, it can improve the operation of the boiler to comply with the low operation cost.
Innovation of two gas boiler
Generally, the initial NOx emission scale of gas-fired steam boiler is 150mg / m3. At present, the nitrogen oxides in different regions are mainly divided into two emission scales, one is 30mg / m3, the other is 80mg / m3, 30mg / m3. The application technology of emission scale is divided into condensation technology, premixing Technology, FGR flue gas re rotation technology and other energy-saving emission reduction technologies. Under the environment that the operation of the boiler is not subject to, the NOx emission of the boiler is low Quantity: 80mg / M ~ 3 emission scale can be reached by general low nitrogen innovation, but it is relatively higher than the national very low emission scale. If the local policies are modified in the later period, there will be a possibility of secondary innovation, and there will be inevitable harm in energy conservation and emission reduction and old-fashioned control.
——Author：ebico