commercial water tube boiler supplier in europe
Even though the CFB operates at a much lower temperature than a pulverized coal-fired unit,the high particle residence time and turbulent mixing provided by the hot circulating solids to enhance carbon burnout and in,practice,the two units operate with similar combustion efficiencies.The CFB,however,can operate with a lower flue gas exit temperature which enhances commercial water tube boiler supplier in europe efficiency. The reason for this lower flue gas temperature is the economizer, which can be used more effectively in a CFB.The water temperature can be raised in the economizer while still maintaining the appropriate steam/water ratio by weight in the furnace tubes, as the heat fluxes are lower than in a pulverized coal-fired unit.The SO2 content in CFB flue gas is also significantly lower than in a PC, since sulfur capture takes place in the furnace.This results in a lower acid dew point and flue gas can be colder without cold end corrosion.While more auxiliary power is needed for fluidization, no mills are required and there is no additional flue gas pressure drop due to FGD and SCR units, and no water consumption, as in a FGD.The power demand of these components are more or less equal to the power needed for fluidization.
Boiler excess air ratio is too low or too high, what harm? What causes high excess air ratio is? A: The commercial water tube boiler supplier in europe excess air ratio is one of the important characteristics of operational quality, the size value shows the degree of perfection combustion equipment and boiler operation. Excess air ratio is too low, incomplete combustion, increased flue gas of CO, the thermal efficiency is reduced; the excess air ratio is too high, the cold air does not participate in the combustion reaction in a large amount into the furnace, furnace temperature to drop, complete combustion. Also part of this excess of air also absorbs heat warming, and to take away the heat with the flue gas, reducing the thermal efficiency of the boiler. Therefore, a reasonable excess air ratio should not only ensure complete combustion of the fuel, but also can minimize the heat loss. Many cities now used in the boilers, a high excess air ratio, is because: (1) mechanical ventilation mismatches, to the excessive wind; (2) a furnace body, door, etc. leakage; (3) a flue, purification device air leakage.
Distinguish between gas consumption and fuel consumption of fuel steam commercial water tube boiler supplier in europe count how: on an article for the gas hot water boiler explanation, then the next, because the fuel in boilers, there is a commonly used fuel for steam boilers . Therefore, we wish to continue to understand this kind of boiler in order to increase their own amount of knowledge in this area. Thus, it can be harvested and progress from learning. 1. Fuel gas steam boiler and steam boilers, boiler on these two, if there are specific differences? The problem, it seems boiler in the box, the answer is yes, because, compared with the steam boiler fuel gas steam boiler, then there is definitely a difference, mainly on the type of fuel, as well as some other aspects. For example, in the running cost, the former than the latter. 2. The oil-fired boiler and a steam boiler, which can be distinguished from it in the boiler category? Oil-fired boiler, which is divided by a boiler fuel to the steam boiler, which is based on exports of soda to points, therefore, for the two boilers, is no way to separate the boiler classification. So, on this issue, the answer is no. Moreover, there is no necessary connection between them.
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