Oil-fired boilers include oil-fired water boilers, oil-fired hot water boilers, oil-fired heating boilers, oil-fired bath boilers, oil-fired steam boilers and so on. Oil-fired boilers are boilers fueled by light oil (such as diesel oil, kerosene), heavy oil, residual oil or crude oil. Compared with gas-fired boiler and gas-fired boiler, oil-fired boiler runs more economically than electric heating boiler and is more convenient to use than gas-fired boiler. With the development of economy and social progress as well as the improvement of people's awareness of environmental protection, coal-fired boilers are gradually out of sight because of serious pollution. Instead, they are replaced by new types of environmental protection digital boilers, such as electric heating boilers and oil-fired boilers. Gas fired boilers, etc., electricity Heating boiler operation is the most expensive, gas-fired boiler needs to be opened with gas pipeline, then, if there is no natural gas pipeline, but also hope that the operation cost of the boiler is low, only the choice of fuel-fired boiler. Oil-fired boiler is heated by burners, fuel atomization effect is good, fuel combustion is full, chimney can not see black smoke, so fuel-fired boiler green environmental protection, efficient and energy-saving. After the fuel oil is sprayed into the furnace, it is very easy to mix with air and burn rapidly and exothermic rapidly. Compared with coal-fired boiler with the same parameters and capacity, the thermal strength of furnace volume can be doubled. However, in order to reduce the heat load in the combustor zone, the water wall tube in this zone is avoided. Because of the overtemperature, the furnace volume is only reduced by about 1 / 3. Moreover, because the ash content in fuel oil is very little, it will not be slagging on the convection heating surface, so the flue gas temperature at the furnace outlet can be as high as 1300 ℃, and the pitch between tubes on the convection heating surface can be reduced to increase the flue gas flow rate, thus the heat transfer coefficient on the heating surface can be increased. Save heating area and steel. In order to prevent spontaneous combustion of carbon black oil scale on economizers and air preheaters, steam soot blowers should be added to these parts to keep the heating surfaces clean. At the same time, because the fuel oil does not form coke slag, the membrane water-cooled wall can be used to form a micro-positive pressure (500 x 1000 cow / ml). A boiler. It can save the draft fan, only the fan can exhaust the flue gas out of the furnace. If the whole shell of the boiler is made of thick steel plate, it can also be made into a positive pressure (0.3 ~ 0.6 MPA) boiler, which can make the whole structure of the boiler more compact, and is more used in the gas-steam combined cycle generator set.
China is the large number of small coal fired boilers, this part of the boiler unit is particularly suitable for the use of straw fuel fired , there are several reasons:
1.Biomass own characteristics, such as low density, to collect raw material, transport and storage has brought great difficulties, according to the level of tariffs in different regions, the general raw material transport over 50 km or more, its economic competitiveness will be substantially reduced, even though they have adopted the compression molding technique .
2.China's current majority of small coal-fired units desulfurization equipment is not installed, this part of the unit coal consumption is not only large, but also the level of SO2 and dust emissions are also much higher than the fire power units, even superior environmental performance of circulating fluidized bed boiler units, because of cost considerations, most of the circulating fluidized bed boiler unit of limestone system is not put into operation. Therefore, the use of existing small units burning low sulfur, low ash biomass fuels, substitution of coal, coal used for savings and efficient, the installation of desulphurization equipment fire power units, which alleviate pressure on the environment is very beneficial .
3.More importantly, the circulating fluidized bed boiler fuel for its wide adaptability, fuel for co-firing biomass basic need to make any changes, but also to bring the combustion efficiency, reduce emissions and slow down wear a wide range of benefits. This may make small generator / heating circulating fluidized bed boiler unit occupies an important position in the future utilization of biomass resources.
Our hospital requirements for environmental protection, health and safety in these areas is very high, for a wide variety of market boiler is also very headache and confusion, there fast boiler solve the above problem, the boiler set clean environment to provide for our hospitals and efficient operation in one, coincides with the philosophy of our hospital. --customer feedback
Boiler Room universities loss to deal with the past most colleges and universities are using a large steam boiler to produce steam for the canteen, water, bathing and heating, where steam is needed where to send, it is a waste. Now with fine design: Principles Steam steam equipment, water equipment with water, with hot water apparatus, and use the nearest, so as to save energy, reduce the cost, the effect manageable. Many schools have been rebuilt by this idea, achieved very significant results, the general transformation of the cost can be recovered within a year. Steam canteen: finned pipe steam: steam plant to meet all requirements; water: gas water heaters + finned steam pipe; water: air source or a solar-based, auxiliary heating gas hot water unit. Partly because of the loss of boiler: 1. Low efficiency of the boiler itself, and after prolonged use efficiency decreases, because: furring furnace, burner efficiency drops, Slagging ashes. 2. duct body loss, loss of pipe insulation, pipe insulation damage after loss increased. 3 does not match the amount of steam, Mara car; a pressure in excess terminal mismatch loss. 4, water in large boilers, heat loss, downtime restarted great heat need; 5, bulky water tank, heat dissipation area, and the insulation layer and the insulation layer thick enough damage; new boiler efficiency up to 90% but after using the terminal, the effective utilization rate of less than 40% utilization rate is even lower for some time, as long as the use of large-tonnage steam boiler on the above factors can not be avoided. Hot water bath, hot water within 40-60 degrees, a low quality heat, is a high quality hot steam, heating with high-quality low quality heat, certainly uneconomical. Hot water bath solutions include: solar energy, heat pumps (air source, ground source), gas water heaters and the like. How specific choice, depending on use environment, temperature, sunlight time, gas prices, electricity prices and other factors, to analyze specific issues. Cafeteria steam boiler is the key to solve the problem of stopping, previous methods to solve: 1 steam boiler generally cost at least 300 yuan / ton, the school used for steam dealers by way of subsidies. 2. The direct-fired equipment is generally used, the thermal efficiency is generally not more than 40% .3 use in a boiler or regulatory edge pressureless factory price steam generator, the same thermal efficiency only 40%, the cost is greatly improved canteen business operators, operating simultaneously also very troublesome. There are other issues: bulky, large footprint, small stand-alone power, need several more, no vapor pressure, high water content, water is not treated with the use of prolonged increasingly inefficient, short life. Now Resolution: With the LEADER gas steam and gas water heaters, boiler room can easily solve the problem of losses, so that the school canteen dealers can be satisfied. LEADER gas steam characteristics: 1, no boiler room, without the need to handle the boiler permits, without kotelshchik: This product volume of less than 16 l system, outside the scope of the Boiler and Pressure Vessel requirements. 2, the use of the nearest: loss of small pipe. 3, high efficiency: oxygen-free copper fin heat exchanger thermal efficiency of 93% .4, modular combination: according to different needs of users for the amount of evaporation, the amount of hot water, tailored. 5, steam pressure up to 1.4kg, fully meet all the requirements of steam college canteen equipment. 6, high-power, small size: the largest single power of 300KW, the volume is only (L * W * H) 1050 * 400 * 1200MM.7, safe: with multiple security protection. 8, the processor is configured softener: water softener use of efficient processor, effectively preventing thermal efficiency reduction unit and pipeline clogging. 9, transformation action, low cost: the use of this product were boiler, gas flow, gas pipeline generally without transformation, the use of other equipment and without transformation.
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