10t coal fired hot water boiler cost
Details of operation of the boiler details chemical energy chemical energy Note 1 Note that operation of the boiler, fuel delivery is controlled with respect to the thickness of the layer of coal-fired boilers, the actual operation, the particles of different sizes on the same coal seam, unreasonable distribution, uneven ventilation, combustion is not uniform. The method can be employed uniformly stratified combustion to coal, to improve seam incomplete combustion: first administration of large particles of coal in the lower layer, the upper layer after administration minimal, large particle surface area of small particles of coal, the need to burn a long time, this time is in the air the highest concentration of oxygen lower position; the other hand, small particles of coal on top, large surface area, a low oxygen concentration, full use of excess air. 2, the flow regulating damper excess air ratio is too large, a large loss of smoke; excess air ratio is too small, incomplete combustion loss is large, and therefore need to properly regulate the air flow to minimize loss of two or more. Usually in the flue gas analyzer backpass smoke, the control amount of wind of carbon monoxide is reduced to a reasonable value. For unconditional for gas analysis, empirical judgment by the naked eye can see the flame in the furnace, the flame pale described excess air amount; brown opaque flame, smoke black smoke indicates incomplete combustion. 3, there is a 1mm thick scale surface water quality management experiment boiler heating surface, waste of fuel from about 3% to 5%, in the presence of 3mm thick scale, waste of fuel of about 5% to 10% . Water two general steps: pre-treatment, ion exchange or reverse osmosis. 4, cleaning blowdown gray scale or fouling deposition in the heating surface, increased heat resistance, reduced heat absorption wall, to improve the furnace exit gas temperature, boiler output decreased, but to increase the amount of cast coal, causing furnace exit gas temperature further improve a vicious circle. Therefore, timely cleaning clear dirt is particularly important. 5, the energy efficiency of the heat insulation testing industrial importance boiler showed small boiler in the case of good thermal heat radiation loss is about 3%, if the wrong selection insulation material, the thickness is too small, or even damage, does not include local heat, heat losses will be higher, the boiler has been running, has been caused by waste heat into the air. When the shutdown check whether the furnace wall insulation bricks off; isolated brick flue check is complete, to avoid shorting the flue gas; outer portion boiler, steam pipes and other insulation damage to be repaired; when heat insulation, low thermal conductivity of the material ( i.e., materials with good thermal insulating properties) on the inner layer having a better thermal insulation effect; respond to the economizer outer insulating layer for laying under conditions permitting. 6, to solve the problem of air leakage air leakage boiler boiler unit during operation is a common problem, the need to ensure the tightness of the boiler, furnace air leakage above all, do not close the site to check the furnace wall, door, inspection holes, etc., can be candles law, candles near these places, to observe whether the candle flame inward deflection to judge. Second leakage tail heating surface, the flue stack leakage mostly welding cracks, elbow bend, the expansion joints wear wear; mostly air superheater corrosion or wear leading to leakage through the pipe, the boiler shutdown should focus an examination.
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How much gas steam boiler power and water consumption about? One ton of steam coal boiler is about 85 kilograms, a ton of steam consumption of natural gas is about 80 square. I do not know the local fuel prices. At the same time, coal-fired steam power boiler tonnes to around 7 degrees, and tons of gas boiler steam power was insufficient. This is the cost of consumption, you can according to the local point, calculate the cost of coal. Other aspects superior to coal or gas, such as environmental protection, operating environment, repair and maintenance.
Coal-fired steam boiler oil requirements and whether the induced draft fan: fuel steam boiler in the boiler, we believe this a boiler will not feel strange, because the front, some of its articles related to getting to know and understand it, and not know about it yet. So the following, in order to promote familiarity with all of the following, will continue to explain knowledge in this area, in order to have the learning effect. 1.20 tons of coal-fired steam boiler, the standard amount of coal every day, about how much is? 20 tons of coal-fired steam boiler, which is the standard amount of coal every day, and if, the calculation explanation, then, is the need to know the specific values, so in order to give a specific value, such as: rated steam pressure of the boiler, is is 1MPa, the water temperature is 20 ℃, the thermal efficiency of the boiler is 90%, in addition, the standard coal heating value is 7000 kcal / kg, then 24 hours a day if the full load operation, then, with its daily the amount of coal is about 50-56 tons. However, in practice, due to some unavoidable factors, it will lead to its value, and larger than 56.