Recently, the Changsha City issued a notice on the transformation of low nitrogen gas multistage high pressure water pump for boiler feed related documents. Details are as follows:

1, a total transformation time for two years, 2019-2020 years.

2, the transformation range: High-tech Zone, Furong District, Tianxin, Kaifu District, Yuhua District, Yuelu District administrative region, the city of hope Gaotangling Subdistrict high Tong Ling Area, Osan streets Yujia slope Area, Lake Daze in the region ban on burning streets, white sandbar streets, moon Island street, Jinshan bridge street, Golden Park street, Xingsha streets of Changsha County, Hunan Long street, Quantang streets, Langli streets, long queue streets, such as the scope of the existing town of Sha It is not less than 1 ton of steam (greater than or equal to the rated power or hot water boiler, organic heat carrier in the boiler 0.7MW) gas boiler (facility) (boiler equipment including special directory outside the range) low nitrogen unit owners embodiments transformation. Or more areas outside the area of ​​self-implementation.

3, the transformation of the standard limits: the new replacement and overall gas boiler Changsha NOx emission is less than 30mg / Nm³; gas boiler (facility) was transformed with the nitrogen oxides emission concentration of less than 50mg / m³.

4, 2019 Task: In addition to the Furong District, Yuhua District, within a range of high-pollution fuel combustion zone ban other jurisdictions to start the transformation from June 2019, 50% complete gas-fired boiler (facilities) low nitrogen transformation and complete acceptance.

5, 2020 Tasks: Before the end of October 2020 to complete all gas boilers (facilities) within the range of high-pollution fuel combustion zone ban on low-nitrogen transformation and complete acceptance.

Compared to the traditional coal-fired multistage high pressure water pump for boiler feed, the boiler fuel is more environmentally friendly, but also more convenient and simple to operate, better overall performance. However, taking into account the fuel - the special nature of oil, oil-fired boiler fire prevention measures is essential, its fire prevention measures are:

Industrial multistage high pressure water pump for boiler feeds Defects Defect Analysis industrial boilers cause defects industrial boilers cause analysis Analysis of the industrial boiler plant boiler Class B, rated working pressure 1.0MPa, rated temperature 184 ℃. The use of unit management personnel, operations personnel safety awareness is not high, not strictly enforce the boiler safety management system, boiler water (medium) quality system; the water softener fails, safety consciousness, not timely maintenance. The company location no water, use of pond water. Since untreated pond water containing suspended matter, colloidal matter large excessive, and dissolved substances. Water hardness, long-term use, inside the boiler large amounts of sediment, the carbonate and concentrated attached to the inner surface of the casing pot, water wall tubes; fireman failure to periodically discharge of the sewage system for the boiler. Since the interior of the waterwall tubes attached to a thicker scale, lack of reliable water supply water wall, resulting in performance degradation wall heat transfer, caused by overheating of the metal, plastic deformation strength decreases, under pressure inside, generating bulge, deformation, severe boiler explosion occurred.

What is the reason the gas multistage high pressure water pump for boiler feed flue gas condensation of water is? The need to deal with them?

Now the boiler on the market, the type of gas-fired boiler using energy-saving technology more and more, condensing technology is one of them. By adding in the rear of the boiler condenser, high temperature flue gas is released through the condenser when a large amount of latent heat supplied to the boiler used again.

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