According to this feature, the blower must be segmented to meet the needs of the combustion. Although the current domestic production of 2100 kw 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.
Five coal-fired 2100 kw coal fired boiler gas boiler should pay attention to change the key to change the coal-fired boiler gas boiler should pay attention to the five key coal to gas project in the current renovation work, is more common in different regions, we continue to time nodes began to carry out, then, for the transformation of coal-fired boiler more standards-compliant, you need to note in particular the following five areas: (1) removal of auxiliary original coal-fired boiler, the boiler because if you want to fit in fuel, after the boiler auxiliary systems that should be a complete set. (2) the installation of blast doors. (3) of the boiler pressure test 1.5 times the working pressure. (4) in particular, to note that choosing the right matching burner, because the boiler during operation, the combustion machine is good or bad, is one of the important factors that affect the efficiency of the boiler. (5) In general, we should not try to change the pressure of the boiler body member portion, to make only a partial transformation of the furnace wall and the furnace arch. Of course, coal-fired boiler gas boiler change relatively strict, need to take into account the points will be more, just above these aspects must be considered in place of the step, which is to facilitate the follow-up work. In addition, the renovation work, if that time coal-fired boiler using some of the more than ten years or even longer, it is recommended to consider the purchase of a new gas boiler.
Biomass 2100 kw coal fired boilers have lower operating costs than coal-fired ones, and with the increasing maturity of biomass boiler technologies, biomass boilers will be the best boilers in the future,For the boiler manufacturer, choosing a suitable boiler can bring many benefits to the plant. In simple terms, how do you choose between coal-fired boilers and biomass fired boilers? Choose a biomass fired boiler or a coal fired boiler.
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