Battle for winning Blue Sky, effectively improve the region's ambient air quality; Ningxia Hui Autonomous Region developed and published a "region-owned coal-fired thermal power units reconstruction plan for the ultra-low emission" (hereinafter referred to as the "Program"). "Plan" put forward plans before the end of 2020, nine companies owned coal-fired power plant 25 thermal power units for ultra low emissions transformation.

By the end of 2020, all the region's coal-fired thermal power units with self-transformation conditions by upgrading desulfurization, denitrification and dust removal facilities, the concentration of pollutants in atmospheric emissions all meet ultra-low emission requirements; long-discontinued businesses in the pre-production must be restored owned ultra-low emission coal-fired units to complete the transformation; gradually shutting down key areas do not have the conditions for the transformation of high-polluting coal-fired captive power plants; emission concentration of air pollutants new coal-fired gas turbine generator set to achieve set emission limits; the country City and Ningdong Management Committee in conjunction with the region's environmental quality improvement requirements, and actively promote the transformation of ultra-low emissions to arrange more than 65 tons of steam per hour of coal-fired boilers.

After the completion of the transformation project, owned coal-fired power plants should entrust a third party consultant for technical performance, environmental effects, equipment stability, comprehensive assessment, evaluation findings and issue.

In order to encourage enterprises to increase efforts to transform ultra-low emissions of pollutant emission concentrations below the pollutant discharge limits set by the state or place more than 50 percent, halved implement environmental tax policy. At the same time, we encourage financial institutions to give preferential credit support, to support eligible owned coal-fired thermal power enterprises to issue corporate bonds direct financing, to raise funds for ultra-low emissions and energy saving. According to the regional administration of appropriate incentive funding arrangements, to ultra-low emission reduction projects included renovation crew around them, give appropriate incentives based on emission reductions, combined with local conditions to increase financial support.

"Plan" requires all localities and departments should strengthen daily supervision and inspection of law enforcement to prevent corporate fraud, is not scheduled to complete the transformation of the self-ultra-low emission thermal power phase-out, discharge permit authorities to promptly subtract the emissions permit, for non-compliance business severely dealt with according to the law, to the public.

Prevention of low temperature hot water boiler condensate corrosion measures what?

1, reduced excess air ratio is reduced boiler flue gas dew point temperature, the main cryogenic preventing corrosion. When reduced from 1.15-1.2 to 1.01-1.02, the dew point temperature of flue gas can be reduced 50-60 ℃. Excess air as possible to reduce the proportion of fuel combusted in a reasonable amount of air, the minimization of SO3.

The method of mounting the valve 1 gas hot water boiler, hot water boiler gas valve position to facilitate installation and maintenance operations taking nice. When mounted horizontally, the stem should be facing, but not downwardly. The valve on the pipe height, can be installed horizontally. 2, the same room, the valve on the same device should be neatly arranged symmetrically, suitable height on the riser the valve is 1.0-1.2 m. Alongside the valve riser, which is preferably the same as the central elevation. 3, when the heavier mounting of the valve is provided a valve holder. It is noted that the valve mounted in line with the arrow pointing direction of the pipe. 4, when the valve mounting flange, should ensure that the two end faces parallel to each other and concentric flanges, can not use double gaskets. For ease of disassembly, the valve should be equipped with a one threaded joint. 5, when the valve mounting flange, threaded bolt diagonally noted, forced uniform asbestos mat to prevent deformation of the body or cause meandering. When the valve is connected with the pipe flange, the valve should be closed. When a welded connection, the valve should be slightly opened.

Matters needing attention in use of condensing Boiler

Condensing boiler can recover heat from boiler smoke and latent heat of steam condensation in flue gas to improve service efficiency of condensing boiler and reduce harmful gas in flue gas. So it will soon become the future development direction of boiler technology. Driven by this new form, consumers also buy condensing boilers in succession, so in the use of condensing boilers, what aspects do consumers need to pay attention to in the use of condensing boilers?

1. pay attention to cleaning: in the cleaning process, the main role of the pickling inhibitor is to prevent metal corrosion during pickling of condensing boilers, in most cases, Many people choose to use their eyes to test the cleaning of condensing boilers. However, visual inspection can only see whether the cleaning is clean, ignoring the most important indicators of cleaning-the corrosion rate and the amount of corrosion. The rate of corrosion and the amount of corrosion is invisible to the naked eye. Therefore, consumers should also know how to measure the rate of corrosion and the amount of corrosion; in the cleaning process, the use of down-in, up-out or up-in-out circulation mode, the installation of temporary cleaning circulation pipeline in multiple locations, so that the pot barrel, Steam drum, pyrotechnic pipe, riser pipe, drop pipe and header can be circulating by cleaning pump to keep the concentration of cleaning fluid balanced, which will enable insoluble matter to be discharged from the boiler after cleaning. So as to prevent a large number of dirt from falling off and accumulating, resulting in boiler "tube explosion" accident.