Because of the characteristics of domestic resource structure coal once had a large proportion in the resource structure so the coal-fired 5 ton capacity coal fired boiler was also in a prominent position in the market. However, with the change of resource structure and environmental pollution in recent years, gas-fired boilers are gradually replacing coal-fired boilers and becoming the main force of the new market because of their natural advantages. Gas-fired boiler market is gradually obvious, has its own obvious advantages, the following comparative analysis of the advantages of gas-fired boilers. Gas-fired boilers are fueled by natural gas, which burns rapidly and produces great power, so it is also efficient, and its efficiency is 50% higher than that of coal-fired boilers. . Although natural gas prices are higher than coal prices, apart from the cost of fuel, as long as the pipeline can be invested. Coal-fired boilers, in addition to fuel costs, transportation costs, labor costs, storage costs, etc., the overall price is not cheap. Therefore, from the cost-effective point of view, natural gas as a whole has more advantages. Natural gas is one of the most environmentally friendly sources of energy by far because of its abundant combustion, clean combustion and pollution-free emissions. Coal combustion emissions sulfur, ash content is more serious pollution to the environment, which is also incomparable with gas-fired boiler. Gas-fired boilers can bring greater environmental benefits to enterprises.
Chemical plant 5 ton capacity coal fired boiler combustion efficiency improvement measures which are not high chemical plant boiler combustion efficiency is not high improvement measures what? The low-temperature exhaust gas boiler combustion efficiency test, a higher excess air ratio, suggestions for improvement higher problems: 1, the excess air ratio due to lower general, industrial boilers was 1.4. Due to the different internal structure of each of the boilers, excess air coefficient can be adjusted according to the actual operation, there are sufficient coke burn time in the boiler. Additionally, secondary air may be suitably provided, coke sufficient oxygen for complete combustion, reducing the incomplete loss of solids. 2, due to lower exhaust gas temperature of the boiler exhaust gas temperature account for a large proportion of the boiler heat loss, so the loss of the boiler must be minimized. In one aspect, the dew point should be to prevent corrosion; the other hand, the exhaust gas temperature is not so high. 3, to improve the uniform distribution of air to the boiler furnace combustion efficiency, so as not to cause incomplete combustion of the coal formation dead. As the pilot were grate boiler, the moving speed of the chain should be controlled within a reasonable range of coal on the grate have enough time to complete combustion, but not too long so as not to waste grate. In addition, high-volatile coal, the coal should be possible to improve the quality, to shorten the combustion time, reduce the loss of solids of incomplete combustion.
According to this feature, the blower must be segmented to meet the needs of the combustion. Although the current domestic production of 5 ton capacity coal fired boilers are taken into account this feature, using the sub-air room, and is equipped with a damper. However, according to the survey, many units in the actual operation is not performed in accordance with the combustion characteristics of air volume control, the amount of air required for combustion and an actual amount of supply air does not fit very well, so that incomplete combustion loss increases. Therefore, adjustment the combustion in the boiler, the air amount to be supplied to the combustion timely adjusted according to need, to reduce heat loss and improve the thermal efficiency. 3. The use of secondary air. Strengthening of the combustion secondary air stream is very effective, it has the following effects: (1) strengthening the furnace turbulence and mixing of the gas stream in the furnace oxygen and fuel gas are uniformly mixed, so that the chemical loss of incomplete combustion and furnace excess air coefficient is decreased. (2) the secondary air vortex formed in the furnace flue gas, on the one hand to extend the suspension of fine coal particles travel in the furnace increases the residence time of the suspension of fine particles in the furnace, so that there is sufficient time than combustion, incomplete combustion to reduce heat loss; on the other hand due to the separation effect of the vortex gas flow, the coal particles and ash particles thrown back to the furnace, reducing the amount of fly ash escaping the mechanical incomplete combustion to reduce heat loss. (3) the high temperature secondary air in the furnace flue gas is improved fullness, that eliminates dead reduced stagnation zone and improve the utilization of the furnace heating surface. In addition to the secondary air had a marked effect on energy conservation, but on the smoke and dust is also very effective.
December 28, 2018, fast Boiler Co., Ltd. through a one-time inspection, duly named academician workstation. The Group was rated "academician workstation" station units, marking the overall level of scientific research and innovation our company has been at the forefront of the 5 ton capacity coal fired boiler industry has been affirmed and recognized experts in the community. Establish academician workstation, it is an important measure of business demand and technological innovation academician expert resources to achieve successful docking. This served as the "fast boiler academician workstation (ID: GZZ2018042)" in the station academician of Chinese Academy of Engineering, the National Academy of pressure vessels and Xuedong, director of Pipeline Safety Engineering Technology Research Center.