Recently, a diesel generator set smoke purification system developed and designed by Hebei Hanlan was installed and operated in a data centre in Shanghai and all tests were successfully met.
According to the customer's requirement that the flue gas emissions of the generator sets used must meet the current national and local environmental protection standards under rated full-load working conditions (i.e. the flue gas meets the requirements of NOx (nitrogen oxides) ≤ 150 mg/m3, PM ≤ 30 mg/m3 and black smoke level up to Lingueman level), Hebei Hanlan's technical staff gave the corresponding treatment plan and designed the Wanchun Diesel generator set smoke purification system.
The black smoke purifier of the generator set adopts the back-blowing regeneration cleaning process, which has the characteristics of easy and quick carbon cleaning and cartridge removal, low cost, long service life, safety and reliability, etc. In other words, under normal conditions and during the service life, only the equipment can be cleaned and maintained periodically without replacing the cartridge and consumables, and no other input is needed, and at the same time, it can meet the requirements of no more than 3kpa increase in back pressure after the installation of the black smoke purifier, no more than 30 mg/m3 particulate matter and cannot affect the power output of the diesel generator set and cannot reduce the power generation capacity of the set.
Wanchun diesel generator set exhaust gas purifier
The SCR denitrification process is used in the flue gas denitrification of diesel generator sets, i.e. the reducing agent is decomposed into ammonia (NH3) and water (H2O) in the mixing area of the exhaust pipe when it meets high temperature flue gas, and then mixed with flue gas to produce harmless nitrogen (N2) and water (H2O) under the action of catalyst, and then discharged through the exhaust pipe.
In the SCR denitrification process, the denitrification catalyst plays an essential role and has a direct impact on the denitrification efficiency. Therefore, for this project, Hebei Hanlan has selected a high efficiency denitrification catalyst, which is independently developed and designed. It not only has the characteristics of high temperature flue gas adaptability, high air velocity and high activity, but also has the advantages of high purification efficiency per unit volume, small footprint, low SO2 conversion rate, flexible structure, resistance to thermal shock and can effectively prevent carbon soot particles from sticking in the catalyst, blocking and poisoning.
Due to the rational layout and optimised design of the whole system, some of the systems are integrated into one unit, thus saving the investment and operating costs and space for the customer, while guaranteeing the safe and reliable operation of the generator set, which is therefore highly appreciated by the customer.
Translated with www.DeepL.com/Translator (free version)
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