"Henan 2018 campaign of air pollution control plan" recently introduced, to guide and encourage medium-sized coal-fired market of internal insulation of industrial boilerss eliminated. In the province's foundation 10 steam tons / hour and the coal-fired boiler Chaigai, and gradually expand the boiler removal and clean energy transformation of coal-fired range, before the end of 2020, the basic elimination of provincial cities planning area 35 steam tons / hour and coal-fired boilers.

Financial awards complement the way:

1, the completion of the coal-fired boiler Chaigai before the end of October 2018, giving not less than 60,000 yuan / tons of steam financial awards complement;

2, the completion of the coal-fired boiler Chaigai before the end of October 2019, giving not less than 40,000 yuan / tons of steam financial awards complement;

3, the completion of the coal-fired boiler Chaigai before the end of October 2020 no longer give financial awards complement.

Further, out of the boiler removal methods include eliminated, an alternative centralized heating boiler, coal gas, coal to electricity, use geothermal, wind, solar, biomass with baghouse, clean coal to burn not including , CWS, anthracite, semi-coke, green coke, crude oil, coal-fired boiler removal must be removed chimney or flue physical cutting, it does not have the complex production conditions. Do not use has been shut down, eliminated waste coal-fired boilers to cash rewards and subsidies. In the process of new coal-fired boilers to switch to natural gas to be synchronized to achieve low nitrogen transformation.

After a long period of operation, the gas-fired market of internal insulation of industrial boilers inevitably has the problem of scale and corrosion. The main reason for the formation of the scale in the boiler is that the water is supplied with a hardness component, and after continuous evaporation and concentration at high temperature and high pressure, A series of physical and chemical reactions take place in the furnace, forming a hard, dense scale on the heated surface, which leads to the decrease of heat transfer effect and the corrosion factor under the scale, which will lead to the decrease of heat absorption in the boiler water wall furnace and the increase of boiler outlet temperature. Increase the boiler loss. At the same time, after scaling in the water wall, the heat transfer effect is reduced, which may lead to the increase of the wall temperature in the water wall and the explosion of the tube in the water wall, which affects the safe operation of the boiler. Scale is the first harmful factor of boiler, and the main cause of boiler accident. Its harmfulness is mainly manifested in the waste of a large amount of fuel: because the thermal conductivity of scale is only a fraction of that of steel, the heat transfer will be blocked after scaling on the heated surface. In order to maintain a certain output of the boiler, it is necessary to raise the temperature on the side of the fire so as to cause the heat loss caused by outward radiation and exhaust smoke. Gas-fired boiler cleaning steps: one step: scale removal cleaning, in proportion to the circulating water in the cleaning tank added a well-equipped scale cleaning detergent, boiler cleaning and scale removal, according to the amount of scale to determine the cleaning cycle time and the number of chemicals, Make sure all the dirt is washed down. Then proceed to the next cleaning procedure. Step 2: clean water, after connecting the cleaning equipment and boiler, clean with clean water circulation for 10 minutes, check the state of the system, whether there is leakage, at the same time rinse away the floating rust. The third step: stripping anticorrosion cleaning, adding surface stripping agent and slow release agent in the circulating water of cleaning tank according to proportion, circulating cleaning for 20 minutes, separating the scale and cleaning components, and at the same time carrying on the anticorrosion treatment to the surface of the object without scaling. Prevent the cleaning agent from corroding the cleaning parts when cleaning. Step 4: passivation coating treatment, adding passivation coating agent, passivation coating treatment of boiler cleaning system Prevent corrosion of pipes and components and new rust formation.

There are many reasons after what factors led to a long period of aging gas-fired market of internal insulation of industrial boilers in use, gas boiler may appear the phenomenon of aging, this phenomenon, so we should always its maintenance and repair. Some parts of the gas boiler is very susceptible to corrosion, since these parts are long-term immersion in water, where there is water and the residual air after contact with susceptible to corrosion. Here we have for how to prevent gas boiler corrosion to analyze parts of boiler corrosion often occurs, to facilitate better precautions. First, superheater boiler vertical bends place is a place very prone to corrosion. Because the device is a long soak in the water, if water is not cleared in time of severe corrosion occurs where the surface in contact with the head play. There boiler equipment reheaters is the same and elbow are immersed in water fitting part, on the causes of corrosion and elbow are the same. Then place a part of the phenomenon of boiler economizer corrosion will occur, the speed of corrosion occurring in, if in the production of high temperature boiler has been in the work environment at the entrance is prone to corrosion in the production of relatively slow if it is discontinued after corrosion rate is not the same. Gas-fired boiler in one of the many devices and large-scale production units and other places are essential in the production and life, for use of the product is very important, people in general are specialized in boiler operation for many years boiler personnel. Correct and effective use of the product will give us a great deal of production and living convenience and productivity benefits, but if you take illegal operation or maintenance of the normal use of the device, it will cause a failure occurs during use of the device, serious anti fitments explosion caused casualties and property.

Run industrial market of internal insulation of industrial boilerss areas requiring attention are what run industrial boilers to note what? Mainly industrial boilers to provide heat and power for other industrial production equipment in order to maintain the momentum of its production and operation. One of which is industrial boilers, mainly to maintain the steam-powered electricity generation or supply. Another is the traditional industrial boilers, coal as raw material which, powered by waste heat recovery, to maintain production run, it is widely used in industrial production. 1. Use industrial boiler operators, requires not only the knowledge and skills of skilled operators, the operation of the boiler should be prohibited from leaving their jobs, the boiler in a state of neglect, reduce accidents too much pressure boiler water level or higher The phenomenon. 2. When the boiler pressure increases, the staff should be subject to rigorous technical evaluation of relevant professional departments to be adjusted to avoid overpressure phenomenon mislead operator error without adjustment. Pressure gauge and safety valve common faults, while related to the operation of the operator should be strengthened. Timely processing of boiler operation anomalies. 3. Prior to the use of the boiler, the boiler should be fully checked structure and current and voltage is within the normal range. To avoid unreasonable boiler structure, poor weld quality, safety accessories related failures caused by industrial accidents occurred in the boiler during operation, and should be sufficient for boiler water treatment prior to use to reduce the incidence of accidents in the run and run.

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