Horizontal Coal Fired Hot Water Boiler Szl4 1 0
In promoting energy conservation work, many of our cities have regulations limiting the city center of coal-fired industrial boilers, requires the removal of small coal-fired boilers, replaced by large-scale coal-fired central heating boiler cogeneration or fuel gas-fired boiler, which because the fuel gas-fired industrial boilers has the following obvious advantages of energy saving. 1) high thermal efficiency of the boiler. Average operating coal-fired industrial boiler thermal efficiency of only 60% to 65%, the lower the efficiency of the boiler capacity is smaller; industrial boiler fuel gas thermal efficiency is generally 80% to 85%, the thermal efficiency of the different capacity of the boiler is not very different, industrial boilers Automatic fuel gas thermal efficiency as high as 93% to 95%. See the combustion efficiency, combustion efficiency of coal-fired industrial boilers average less than 80%, the average industrial boiler fuel gas combustion efficiency of more than 95%, combustion efficiency of most industrial boilers Automatic fuel gas up to 98% to 99% (considering the flue gas condensate after the recovery of latent heat). 2) low energy consumption. Fuel gas combustion boiler generally use a slightly positive pressure, just a fan, no dust, coal, slag removal equipment, running less than half the power consumption of coal-fired boilers; small industrial boilers frequent starts and stops, since the fuel gas-fired boiler stop convenience , that is shutdown completely stopped fuel consumption, unlike coal-fired boiler shutdown device still consumes a certain amount of fuel. 3) Low fuel transportation energy consumption. Noncombustible ash coal and water 30% to 40%, ash after burning and 30% to 40% by weight of coal, half of the group receives only the oil and gas of low calorific value, coupled to the fuel conduit and gas transport, with the transport of fuel oil calorific value of coal and ash transport energy less than energy consumption 1 / 4.4) and steel boiler for producing low energy consumption. Producing fuel gas boiler steel consumption is only 40% to 60% with coal-fired boiler capacity. 5) fewer pollutant emissions. Coal contains a large amount of incombustible components, combustion ash and unburnt coal dust become, the major sources of air; and a coal ash transport, storage, and in particular the field of coal ash open field dust pollution caused by the ground; Dust , slag would cause water pollution. In general, at the same furnace heat release, smoke emission was about 11 times as coal fuel, is about 500 times the gas; of SO2 emissions from coal burning is about 3 times the fuel, gas 4000 times ; about the NOx emissions from coal burning of 3 and 4 times the fuel gas. It is estimated that the greenhouse gas emissions - a coal-fired industrial boilers of the same capacity when the CO2 emission light diesel fuel is about 1.3 times, 1.5 to 1.8 times the combustion of natural gas, city gas twice or more the burning.
Internal gas-fired, gas-fired fuel management is equally important for wear to how to do? Detailed examination is the key, fuel management is equally important. We can according to operating conditions, gas-fired, time, planning and reasonable arrangements for wear of the check, when using fuels strict control of particle size into the furnace of coal and limestone particle size of bed material similar to strict customs, boiler waste to be treated before discharge. Want to reduce the impact on the water wall tube may be appropriate to adjust air pressure, air volume, can effectively reduce the wear and tear of the water wall. Maintenance shutdown time is generally in a standby or shutdown, check items include wear the furnace wall, the furnace seals are tight, leak or absence of smoke and the like. In the case of wear was found to be timely repair and welding, to ensure the normal operation of the steam boiler. Generally gas prior to combustion boiler needs to be filled in the combustion chamber fossil fuel, fossil fuel and bed material, the full integration of recycled materials in an air convection wind speed, wind strength and rigidity of the bottom of the apparatus, the inner core region of upwardly movement, the outer annular area of the reflow furnace wall along a downward extension of the coal particles in the furnace residence time, mineral particles, fly ash and flue gas contains a large number of large amounts of fly ash particles causes the waterwall tubes kept fast erosion wear, wear thin wall thickness, resulting in wear and tear.
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Horizontal steam boiler with a boiler boiler you know take you through a horizontal steam boiler Generally speaking, we use boilers have very many models, according to their different fuels of different works, there are different, the boiler itself institutions, divided into many, the Take the steam boiler, there are still sub-ordinary boilers and steam boilers of it, for this horizontal steam boiler, his characteristics is not the same. Boiler fire resistant concrete arch from ramming. After the arch low and long, and therefore good combustion, flue wings and side wall refractory material sintered brick. Boiler front wall, back wall using a common bricks. Grate air distribution reasonable, the combustion chamber is large, strong coal applicability. Adapt to all types of bituminous coal or anthracite, mixed coal. Full combustion. Since the high temperature flue gas enters the first settling chamber, and then into the wings on both sides of the stack, before the smoke box, smoke and dust so good effect. Water circulation simple, reasonable structure and components under pressure, in the case to ensure water quality, completely safe operation. Combustion equipment for the quick grate, combustion apparatus installed in the manufacturing plant, transported to the site can be directly mounted on a foundation. With a reasonable structure, compact, low consumption of steel, the boiler performance, weight, frame size and capacity of the domestic product has obvious advantages compared. It is a horizontal type boiler quick fire tube boiler, refrigerant natural circulation. The boiler drum from the heat exchange system, the left and right header, composed of the water wall, the main furnace wall with a heating surface, convection tube inner drum portion and the drum.