Wanchun generator set flue gas purification system solution in a data center in Shanghai
According to the customer's proposal by Hebei Hanlan, the flue gas emission of the generator set used in the rated full load condition must meet the requirements of the current national and local environmental protection standards (that is, the flue gas must meet the NOx (nitrogen oxide) after purification by the generator set smoke purification device) ≤150mg/m3, PM≤30 mg/m3, black smoke reaches Ringelmann Class 1). Our technicians made corresponding solutions for a data center in Shanghai and designed Wanchun diesel generator set flue gas purification system.
Among them, the black smoke purifier of the generator set adopts the back-blowing regeneration cleaning process, which has the characteristics of convenient and fast carbon deposit cleaning and filter removal, low cost, long service life and safety and reliability. That is, under normal conditions and within the service life, Only perform periodic cleaning and maintenance of the equipment, no need to replace the filter element and consumables, and no other investment. At the same time, it can meet the requirement that the back pressure increase after the black smoke purifier is installed is not more than 3kpa, and the particulate matter is not more than 30 mg/m3 and cannot be affected. The power output of diesel generator sets should not reduce the requirements of generating load capacity of the generator sets.
For diesel generator set flue gas denitrification, the SCR denitrification process is selected, that is, the reducing agent is decomposed into ammonia (NH3) and water (H2O) in the mixing zone of the exhaust pipe when it encounters high-temperature flue gas, and then fully mixed with the flue gas in the catalyst Under the action, harmless nitrogen (N2) and water (H2O) are generated and then discharged through the exhaust pipe.
In the SCR denitration process, the denitration catalyst is an essential role and directly affects the denitration efficiency. Therefore, in this project, Hebei Hanlan selected a highly efficient denitration catalyst independently developed and designed, which not only has the characteristics of high temperature flue gas adaptability, high air velocity, high activity, etc., but also has high purification efficiency per unit volume, small footprint, and SO2 conversion. Low rate, flexible structure, thermal shock resistance, can effectively prevent soot particles from sticking, clogging and poisoning in the catalyst.
Due to the rational layout and optimization design of the whole system, and the integration of some systems into one, it greatly saves investment and operating costs and space for customers, and at the same time guarantees the safe and reliable operation of the generator set, so it has been highly recognized by customers .
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