Small Fired Tube Industrial Steam Boiler
Information on the nameplate and boiler pressure labeling requirements: rows of tubes in the boiler, which specifically refer to? Boiler operating pressure, when it is equal to what, boiler efficiency is at its peak? And, on the boiler plate, whether there must be parameters? These issues are on the boiler, so the following immediately to give a specific answer, I hope you can clearly understand, rather than a superficial knowledge, or that there are misconceptions. 1. The discharge tube boiler, which specifically refer to? Boiler, tube row thereof, which is mainly refers to the heating surface tube, is arranged in a row, so they are referred to as boiler tube rows. In the specific member thereof, including the water wall, superheater, reheater and economizer four, however, to be noted that, where the superheater, screen that does not include this one superheater.
Improvement: condensing boiler after pickling, passivation must be rinsed, since the passivation more stringent requirements, thus rinsing process must be strictly controlled concentration of total iron ions. After rinsing is complete, iron ions tested meet the requirements, the PH value immediately adjusted to strongly basic, and the passivating agent is added, warmed passivation.
Recently, the Changsha City issued a notice on the transformation of low nitrogen gas boiler 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.
calculations of boiler efficiency
The effective heat utilization of the boiler per unit time as a percentage of the heat input to the boiler, or the percentage of effective heat used per kilogram of fuel (solid and liquid fuel), or the input heat per standard cubic meter (gas fuel) Thermal efficiency is an important technical and economic indicator of the boiler, which indicates the perfection and operation management level of the boiler equipment.