The difference between ordinary and low nitrogen supplier 4 ton boiler boiler:? With vigorously promote environmental protection department of China's low-nitrogen boiler being applied more and more common. In the eyes of many low nitrogen boiler just meet environmental protection to reduce emissions, but in reality not. The following describes a low nitrogen boiler manufacturers to distinguish the conventional type boiler and low boiler nitrogen for everyone? A difference in emissions due to the different combustion grate firing, combustion chamber, circulating fluidized bed boiler, the furnace of different structure, but also its original NOx emissions when large differences, in general, not specifically for low NOX combustion furnace using technology, circulating fluidized bed original low NOx emissions, NOx raw emission Stoker furnace represented by a chain slightly lower, industrial pulverized coal boiler as burning boiler room, the higher the NOx emissions original, well-known domestic boilers have low nitrogen emissions is greatly reduced. Second, different boiler technology, layer combustion, combustion chamber, circulating fluidized bed boiler may be different with different low NOx combustion technique in accordance with the combustion mode, the combustion boiler for the air distribution layers using an air classifier, and more often to achieve low flue gas recirculation nitrogen combustion; under the influence of a typical flue gas recirculation combustion boiler combustion zone layer, in conjunction with the air fractionation techniques for reducing NOx by catalytic char; super reduction furnace denitration technology in recent years, new furnace denitration techniques, by position reasonable combustion flame spray region ammonia, direct denitration at a high temperature flame. Low Nitrogen mainly the secondary air boiler, the coal to the location and distribution of optimal adjustment of the mouth, or the like to increase the flue gas recirculation system. Third, different security, the center layer after combustion, combustion chamber, low-NOx combustion furnace circulating fluidized bed boiler technology a large number of tests performed, it has been verified in engineering applications, in general, a low nitrogen boiler, security to be higher, the reason for its sales in recent years more and more, there are many users because of its high security, a threat to the space environment small purchase, which is one of its important differences with ordinary boilers.

One bright spot: small footprint design Integrated economizer, air preheater and integrated body design, saving space. Highlights II: advanced cooling technology of low temperature exhaust gas adopts a new environmentally friendly energy efficient technology Ultraten wings tube, the flue gas heat recovery efficiency. Wings built finned tubes, the cooling water does not flow outside the tube fouling; tearing groove design fin heat transfer area is increased 5-fold, sufficiently absorb latent heat of vaporization in the flue gas, a high heat recovery rate; silicon alloy material, corrosion resistance and long life. Highlight three: original elliptical smoke tube air preheater to reduce operating costs oblong stainless steel tube 304, a large contact surface wind resistance, the higher the heat exchange system, improve the supply air temperature, significantly reduce operating costs; corrosion-resistant stainless steel tube 304 high, high voltage resistance to high strength and durability. Highlight four: PLC intelligent control high degree of automation all Chinese color touch screen, real-time dynamic display supplier 4 ton boiler operating conditions; multi-level pop-up menu, simple man-machine interaction; cloud big data services 3.0 support to ensure the safe operation of the boiler.

Problems coal supplier 4 ton boiler gas boiler gas coal problems are: 1, more coal ash, 2, unevenness of coal particles, 3, coal contains a large amount of impurities, 4, a lower heating value of coal, 5 when combustion is not easy to ignite fire, 6, coal moisture content uncertain. 7, does not burn coal, slag high carbon content. In general, use is preferably designed coal boiler design coal or coal close, in order to ensure stable combustion. In recent years due to the growing tension surrounding the coal supply, coal supply has become diversified, coal quality is very different than before coal, have a great impact on the stability of the boiler combustion and normal heating operation. Impact of coal combustion boiler stable for: calorific value of coal is coal reflects an important indicator of good or bad, when the low calorific value of coal to a certain value, will not only affect the incomplete combustion instability and can lead boiler flameout, the outlet temperature of the boiler is difficult to compliance, affecting the normal operation. Volatile combustion and can be deposited at lower temperatures, as the combustion heat, the temperature rapidly increased coke particles, provide an extremely favorable conditions for ignition and combustion, volatiles further increased coke deposition and internal voids and the external reaction area, will help improve the speed of burning coke. Thus, the greater the content of volatile, nonflammable, the less fixed carbon in the coal component, the easier coal burning ember, devolatilization of many voids, increases the surface area of ​​the reaction, the combustion reaction is accelerated. When the volatile content is reduced, pulverized coal ignition temperature significantly increased, the hot increases, difficult fire, ignition time required becomes longer, the combustion stability is reduced, shifting the center of the flame, furnace absorbed radiation heating surface reduce heat, increase the heat absorption of the convection heating surface, the rear exhaust temperature, exhaust loss increases.

The transformation of low nitrogen supplier 4 ton boiler should be noted that what matters for retrofitting low nitrogen boiler should be noted that what? Of nitrogen oxide emissions is large, complex sources, environmental problems caused by acid deposition, fine particles, ozone, nitrogen oxides and analysis of contamination status must be further strengthened. If you do not take further measures to reduce emissions, with the United States and the United States to speed up economic development, population growth and urbanization, nitrogen oxide emissions will continue to grow in China in the future. Based on current trends, by 2030, emissions will reach 35.4x106 tonnes, will inevitably cause serious environmental impacts. Therefore, we must effectively enhance the emission control of nitrogen oxides. From this we can see that low nitrogen boiler is imperative! A check device to check for low NOX combustion gas before commissioning is in place, the gas pipeline flow is clean, whether the valve is open. There is a burner pipe leaks, reasonable pipeline installation. Discharging vent pipe valve from the foregoing, to ensure that no mixing of the air duct, and the exhaust pipe should be connected to the outdoor. Second, stable combustion and combustion of homeostasis Remember, combustion adjustment is the basis for all of the low nitrogen burner adjustment, as long as guaranteed under any changes in operating conditions of combustion stability and combustion of dynamic equilibrium, to burn steam temperature influence is even greater. Since the steam temperature is a sign flue gas heat value balance between the steam and heat absorption, this can be maintained as long as the dynamic balance, steam temperature can be kept stable. Third, the level of flame boiler boiler central flame center is also an important factor in high impact low-temperature steam. In the high temperature steam operation, the amount of coal combustor exhaust can be reduced, the amount of the lower stage burner of coal may be increased, and vice versa. Running low nitrogen burners, it should also be noted effect of different combinations of temperature steam mill. Steam at a low temperature exhaust composition regulating a large margin, the combination of the high temperature exhaust temperature adjusting stage so small margin overheat. It should be strengthened and soot blowing air distribution according to the situation.