How to control the exhaust emission of diesel generator set?

Release time:

2022-08-09

For the obvious black smoke at the initial stage of diesel unit start-up, Guangdong Green Valley Environmental Protection recommends that users configure dry black smoke purifier and SCR denitration s

1、 Suggestions on exhaust emission control of Li diesel generator set

The diesel generator set with power operation is often used to rent the main power supply of outdoor, factory, test bench, areas with unstable power supply, etc. In these fields, the diesel generator set needs to operate continuously for several hours. At the initial stage of start-up, when the diesel engine temperature is low, the black smoke in the tail gas is more obvious. With the continuous operation of the unit, the temperature rises, the diesel combustion is sufficient, and the generation of smoke will be greatly reduced. But then comes the gas with pungent smell, i.e. nitrogen oxides. The higher the temperature, the less black smoke, and the more serious nitrogen oxides. At this time, the focus of tail gas treatment of diesel generator set will change from smoke to nitrogen oxides.

2、 Suggestions on exhaust emission control of standby diesel generator set

Diesel generator sets are often used as backup power supply for data centers, banks, governments, schools, hospitals, factories, office buildings, etc., so as to ensure that the fire emergency power supply and important equipment power supply in these public places will not be affected under the special circumstances of municipal power outage. Generally, the municipal power supply is stable, and these diesel generator sets need routine inspection, usually monthly inspection, that is, starting for half an hour to several hours every month to ensure the normal operation of the units. In this case, it is recommended that the user configure a dry black smoke purifier for the standby unit to control the obvious black smoke at the initial stage of diesel unit startup.

Therefore, Green Valley Environmental Protection recommends that users configure dry-type black smoke purifier and SCR denitration system for diesel generator sets in main operation. The smoke purifier is used to control the black smoke during the cold start of the diesel unit, and the SCR denitration system is used to control the nitrogen oxides generated during the long-term operation of the unit.

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