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Treatment plan and target of generator exhaust

发表时间:2018-12-21 Article source: Couch motor manufacturersPublished time: 2018-12-21

A large amount of exhaust gas is generated during the operation of a diesel generator set or a boiler. The composition of the exhaust gas is extremely complex, including SO2, SO3, NOX, CO2, and carbon particles. Among them, SO2, SO3, and NO2 are emitted into the atmosphere, which is combined with water vapor to form sulfuric acid and form Acid rain phenomenon; NOX is released into the atmosphere. Because NOX is a highly toxic gas, it is difficult to contain water. It drifts with the wind and seals cause serious pollution to the atmosphere. Carbon particles are oily particles that are difficult to contain water. After the treatment, the exhaust gas of the diesel engine meets GB16297-96 "Integrated Emission Standard for Air Pollutants".


Industrial waste gas treatment equipment company's treatment goals of generator exhaust gas treatment program
1. After the exhaust gas of the generator is treated with exhaust gas, the exhaust smoke concentration reaches the national standard of less than 120mg / m3;
2. After the exhaust gas of the generator is treated, the exhaust smoke concentration reaches the national standard, and the Lingerman blackness is level 1;
3. Sulfide and some nitrogen oxides are dissolved in water. The exhaust gas treatment company's generator exhaust gas treatment plan is water bath treatment. During operation, an alkaline solution must be added to neutralize the sulfide in the circulating water, thereby extending the use of environmental protection equipment for exhaust gas treatment. Life, sulfur dioxide is less than 500mg / m3.
(No specific treatment for nitrogen oxides at present) Generator tail gas treatment: For the black smoke emitted by diesel generators, the current conventional method is to use a swirl plate water washing spray method, using a swirl plate spray tower, and the gas in the tower The inside moves at a high speed from the bottom to the top, and comes into contact with the washing liquid sprayed from the top to the bottom. Because the multi-layer swirl plate is set in the tower, it can increase the gas-liquid contact area and contact time, so that the tail gas and water in the tower and the Full contact on the board.
The pollutant carbon black in the tail gas is fully adsorbed by the water during the contact with the spray water and purified; the gaseous pollutants such as NOx and SO2 in the tail gas are made alkaline by adding a certain proportion of NaOH to the spray water In the spraying process, when water is in contact with the exhaust gas, a chemical reaction occurs, so that gaseous pollutants such as NOx and SO2 can be neutralized to achieve a good treatment effect.
The treatment of generator exhaust must pay attention to the following requirements
During the entire exhaust gas purification process, the equipment does not need to be cleaned, the spray water used can be recycled, and the entire processing process can be automatically controlled, and the operation is simple and convenient. The exhaust gas treatment company used the swirl plate spray tower process to purify the generator exhaust gas in this scheme.
1. The design and construction of diesel generator exhaust gas treatment projects, in addition to complying with this technical specification, shall also comply with the relevant national mandatory standards.
2. The treatment scale and processing technology of the diesel generator exhaust gas treatment project should be determined according to the types, concentrations and treatment requirements of gas pollutants in the diesel generator exhaust gas of the enterprise, so as to protect the environment, be economical, reasonable, and reliable in technology.
3. The choice of treatment engineering technical scheme shall meet the requirements of the approval document of the environmental impact assessment report. After treatment of diesel generator exhaust gas, it shall meet the requirements of relevant national and local emission standards.

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