Condensing boiler means of latent heat of vaporization of water vapor contained in the boiler can be absorbed from the flue gas in the boiler exhaust. The most conventional boiler flue gas sensible heat transferred to the water or steam, and condensing boiler will not only sensible heat transfer part of a larger feedwater or steam, but also absorbs the latent heat of vaporization of water vapor in the condensing part of the fumes released.
December 20, "Shanghai Air Pollution Prevention Act," a modified version of issued and published by the Shanghai Municipal People's Congress Standing Committee, with effect from January 1, 2019 came into effect.
First, the discharge of industrial waste gas or coal-fired heat production specified operating business units of toxic and hazardous air pollutants listed in the directory of institutions, central heating and other facilities to implement pollution permits management according to law shall, pursuant to the provisions of Shanghai, to the municipal or district environment department applied for and obtained the focus of air pollutants discharge Permit (hereinafter referred to as emission permits); no discharge permit shall not discharge the focus of air pollutants.
Emissions to air pollutants shall comply with the air pollutant emission standards, compliance with the total focus of air pollutant emission control requirements. New construction, expansion, renovation project focused on emissions of atmospheric pollutants, the focus should obtain the total air pollutant emission targets in accordance with the provisions of, and environmental protection examination and approval procedures for construction projects. Need to apply for a discharge permit construction projects shall obtain emission permits before being put into production as required.
Second, easy to appear in the autumn and winter of heavy pollution weather, the city of steel, building materials, coking, casting, aluminum, chemical high emission industries related company should arrange production plan to strengthen air pollution control measures. Economic information administrative departments should strengthen the guidance jointly with the municipal environment department.
Third, the environment department to determine the emissions of air pollutants key sewage units, must be configured using air pollutant emission-line monitoring equipment, and the environment departments into a unified monitoring network.
Fourth, in addition to coal-fired power plant, the city's ban on new or expanded coal burning, heavy oil, residual oil, petroleum coke, high-polluting fuel (hereinafter referred to as high-polluting fuels) facilities; the construction of coal-fired power plant in accordance with the relevant provisions of Shanghai .
5, small steam boiler lifespan should not exceed eight years, more than eight years be scrapped.
6, small aluminum pressure hydraulic test should be conducted every two years. Prior to hydrostatic testing should be performed to check the necessary internal and external.
7, after pressure hot water boiler in use, and no unit or person shall not change the structure and installation of boiler system piping, valves.
The low nitrogen combustion technology has been invented to upgrade to make the low nitrogen boiler retrofit meet the relevant requirements has become a lot of manufacturers are actively preparing and executing things, in Xi'an low nitrogen boiler renovation bidding professional institutions with very high professional level, The low nitrogen boiler reconstruction construction scheme issued by these institutions can quickly respond to the needs of optimization and upgrading of all kinds of boilers, so what are the key points to be paid attention to when carrying out the low nitrogen boiler transformation?
1, it is a process of mechanical and technical transformation and environmental upgrading that requires qualified institutions to complete the retrofit of low-nitrogen boilers. Then, when reforming the low nitrogen boiler, we should ask the organization with the specialized technology and qualification to complete it. The specialized low nitrogen boiler retrofit company can give the standard and reasonable transformation with the excellent technical strength and rich experience.
2, to do a good job in the safety management during the renovation period, the main point that must not be sloppy in the whole process of the actual transformation of the low nitrogen boiler is to pay attention to the safe and smooth upgrading of the boiler. At the same time, it is necessary to take into account the personal safety protection of all participants and the maintenance of the equipment core during the renovation and upgrade period, and all upgrading and retrofitting actions should be carried out in accordance with the form of expert norms.
3, another key point of the revamping operation of the low-nitrogen boiler is to do a good job in the observation of the equipment hoisting after the transformation, mainly to carry out omni-directional state inspection on the boiler core functional areas after the transformation. Then the equipment operation of low nitrogen boiler was observed in a scientific way.
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