75 ton coal-fired circulating fluidized bed power station boiler

CBM provided a 75-ton coal-fired cfb boiler for power generation in a chemical plant in China. This boiler uses circulating fluidized bed combustion technology. The boiler steam pressure is 3.82 MPa, the steam temperature is 450 °C, and the boiler feed water temperature is 105 °C. Our circulating fluidized bed power station boiler has strong fuel adaptability and can burn anthracite, lignite, bituminous coal, lean coal and various biomass fuels.

Inter-regional Pingdingshan Coal Industry Group Co., Ltd. by the Pingdingshan Shenma Group and two Chinese top 500 enterprises founded by restructuring, cross-industry, cross-ownership and transnational business of large state-owned energy and chemical group, under the People's Government of Henan Province , is the most complete variety of coking coal, thermal coal production base, has Asia's largest chemical production base in nylon. Carefully selected and comparison, fast boiler Pingmei cooperation with party has chosen to provide a 2 tons of steam electric steam boiler (WDR2.0-1.25-II) by a fast side.

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% [3]. 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.

A: Commercial current commercial gas boiler main use is for supermarkets, hospitals, schools, hotels, residential (mainly the center of the city, convenient gas facilities area), bath, etc., to provide heating or bathing water, hot water. Since the gas in the ash, low sulfur and nitrogen than coal combustion, very small amount of dust in the flue gas, the state emission standards easy to achieve the required gas appliance, it can greatly reduce the pollution of the environment, environmental performance it is good. Boilers and combustion gas on the accessory device does not require gas, slag, dust removal machines, etc. grate, boiler investment saving equipment, is therefore suitable for commercial applications. Two: with factory workers using direct gas boiler piped gas powered, no gas storage, health conditions, can greatly reduce labor intensity and improve working conditions and reduce the operating cost, operating cost savings, space and labor . Since the smoke pollution, convection bank bear little corrosion, heat transfer effect, strong radiation heat, exhaust gas temperature is low, the thermal efficiency is significantly improved, so the main industrial gas boiler for power generation, industrial gas boilers of gas used may be generally natural gas, blast furnace gas, producer gas and so on. Three: Civil domestic gas boilers (boiler) is mainly used for daily household hot water, bath and hot water heating. In reducing equipment maintenance, gas burning boilers coefficient simple equipment, thus requiring less maintenance equipment maintenance, long life heated tube, gas boiler is simple to operate and easy to achieve automatic control.