Boiler drum is what role has it, its material is generally what? 1, the main role of the drum to receive economizer tap water, saturated steam for the steam separator and the water circulation loop, fed to the superheater. There is a certain amount of water in the steam drum, and has a certain amount of heat working fluid savings when operating conditions may slow the rate of change of steam pressure changes, play a cushioning effect when the water supply to the load short uncoordinated. Equipped with an internal steam drum apparatus for water separation, steam cleaning, pot dosing, continuous blowdown, in order to ensure the quality of steam. 2, not all have the ce certificate central heating boilers drum, once-through boiler is no drum. 3, there are used steel drum steel 12Mn, 16Mn steel, 19Mn6 steel, steel 15MnV, 14MnMoV steel, 13MnNiMoNb steel. Common steel has 12CrMo steel boiler tubes, 12Cr1MoV steel, 12MoVWBSiRE steel, 12Cr2MoWVB 12Cr3MoVSiTiB steel, and steel.
By simply increasing the size of the header boxes and adding a bank of drying tubes at the top, the horizontal d type water-tube ce certificate central heating boilers was easily modified to produce steam as well. With far less mass (water content) than fire-tubes, the d type structure boiler are able to generate steam much faster from a cold start. In addition, the drying tubes produce high quality saturated steam with less than 1% moisture content. This type of boiler eventually found acceptance across the rest of North America and has never looked back. ZG has manufactured this type boiler since 1948. It would be reasonable to ask how a ZG china water tube d type boiler overcomes thermal shock with straight tubes.
Shanxi Province to continue to improve and protect the environment, prevention of air pollution, with "Environmental Protection Law of People's Republic of China", "People's Republic of China Air Pollution Prevention Law" and other relevant laws, introduced the "Shanxi Atmospheric Pollution Prevention Act" ((hereinafter referred to as " regulations ").
"Regulation" is mentioned, Shanxi coal consumption will implement the total control system, and gradually adjust the energy structure, reduce the proportion of coal in primary energy consumption. Provincial People's Government will work with the energy department in charge of relevant departments, according to the needs of economic development, social and environmental carrying capacity of resources, the development of the region's total coal consumption control target.
First, governments at all levels to limit sulfur points, high ash coal mining. New coal mines should simultaneously supporting the construction of coal washing facilities, so that the coal sulfur content, ash content meet the required standards. Have been built in addition to the mining of coal mine belonging to low-sulfur, low-ash or coal-fired power plants have been in accordance with the requirements of discharge standards do not need washing outside, it should be a deadline for the completion of supporting coal washing facilities. When coal, gangue, coal cinder, coal ash and other materials, should take fire and dust prevention measures to prevent air pollution.
Second, the coal-fired power companies, coking, and other steel companies use coal shall clean production processes, supporting construction dust removal, desulfurization, denitrification device to reduce the generation and emission of atmospheric pollutants.
Third, the city government should promote cogeneration and district heating coal heating in the region. In the central heating pipe network coverage area, prohibit new construction, renovation, expansion scattered coal-fired heating boilers, central heating pipe network coverage prior to the completion of use of scattered coal-fired and coal-fired heating boilers have been built can not discharge standards heating boilers, should be demolished within the prescribed period the city government.
Fourth, the Municipal People's Government shall be divided into districts to improve the quality of atmospheric environment in accordance with requirements, it will be designated urban area to ban coal region, and gradually expand. County (city, district) people's government can scoping ban on coal zone in accordance with the actual situation. Delineation ban on coal zone should consider the needs of life of local residents. In addition to coal coal ban areas, central heating and raw material coal companies, prohibit the storage, distribution and burning of coal and its products.
Fifth, governments at all levels should strengthen the management of civil bulk coal. Prohibit the sale, does not meet the civil standard of quality coal for coal, lignite ban, coal washing, slime and other low-quality coal use low-quality coal as a civilian.
Based on the particularity of commercial gas hot water boiler, the boiler has to be concerned about whether anti-jamming features, both related to the life of the boiler, but also related to the stability of the equipment, can not be ignored.
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