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    选用燃油燃气锅炉燃烧器应按哪些原则?
    来源:http://shoesnewsusa.com 发(fa)布时间:2022-10-11

    燃油燃气锅炉燃烧器的选用应根据锅炉本体的结构特点和性能要求,结合用户使用条件,作出正确的比较,一般可按下列几条原则进行选择:
    The selection of burners for oil-fired and gas-fired boilers shall be based on the structural characteristics and performance requirements of the boiler body and the user's service conditions. Generally, they can be selected according to the following principles:
    1)根据用户使用燃料类别选用,液体燃料有煤油、柴油、重油、渣油和废油,气体燃料有城市煤气、天然气、液化石油气和沼气,使用的燃料应有必要的分析资料:
    1) According to the types of fuels used by users, liquid fuels include kerosene, diesel, heavy oil, residue and waste oil, and gaseous fuels include city gas, natural gas, liquefied petroleum gas and biogas. The fuels used shall have necessary analysis data:
    ①煤油、柴油应有发热量和密度。
    ① Kerosene and diesel oil shall have calorific value and density.
    ②重油、渣油和废油应有粘度、发热量、水分、闪点、机械杂质、灰分、凝固点、密度和供油温度。
    ② Heavy oil, residue and waste oil shall have viscosity, calorific value, moisture, flash point, mechanical impurities, ash, freezing point, density and oil supply temperature.
    ③燃气应有发热量、供气压力和密度。
    ③ The fuel gas shall have calorific value, gas supply pressure and density.
    2)根据锅炉性能及炉膛结构来选择燃烧器中喷油嘴雾化方式或燃气燃烧器的类型。
    2) The atomization mode of fuel injection nozzle or the type of gas burner in the burner shall be selected according to the boiler performance and furnace structure.
    3)燃烧器输出功率应与锅炉额定出力相匹配,选择好火焰的形状,如长度和直径,使之与炉膛结构相适应。从火炬根部供给燃料燃烧所需要的空气,使油雾或燃气与空气迅速均匀混合,保证燃烧完全。
    3) The output power of the burner shall match the rated output of the boiler, and the shape of the flame, such as length and diameter, shall be selected to adapt to the furnace structure. The air required for fuel combustion is supplied from the root of the flare to quickly and evenly mix the oil mist or gas with the air to ensure complete combustion.
    根据锅炉改造确定的额定出力和锅炉效率,计算出燃料消耗量,然后按所选单个燃烧器的功率确定燃烧器的配置数量。增加燃烧器的数量,有利于雾化质量,保证风油混合,但数量过多,又不便于运行维护,也会给燃烧器布置带来困难。
    The fuel consumption is calculated according to the rated output and boiler efficiency determined by the boiler transformation, and then the configuration number of burners is determined according to the power of the selected single burner. Increasing the number of burners is conducive to the atomization quality and ensure the mixing of air and oil. However, too many burners are not convenient for operation and maintenance, which will also bring difficulties to the layout of burners.
    4)燃烧器调节幅度要大,能适应锅炉负荷变化的需要,保证在不同工况下完全稳定地燃烧。
    4) The adjustment range of burner shall be large, which can meet the needs of boiler load change and ensure complete and stable combustion under different working conditions.
    5)燃油雾化消耗的能量要少,调风装置阻力要小。
    5) Fuel atomization consumes less energy and the resistance of air regulating device is small.
    6)烟气排放和噪声的影响必须符合环保标准的要求,主要是S02、CO和NOx的排放量必须低于国家的规定,应选用低NOx和低噪声的燃烧器。
    6) The impact of flue gas emission and noise must meet the requirements of environmental protection standards, mainly the emissions of S02, CO and NOx must be lower than the national regulations, and the burner with low NOx and low noise shall be selected.
    7)燃烧器组装方式有整体式和分体式两种。整体式即燃烧器本体、燃烧器风机和燃烧系统(包括油泵、电磁阀、伺服电动机等)合为一体;分体式即燃烧器本体(包括燃烧头、燃油或燃气系统)、燃烧器风机和燃烧器控制系统(包括控制盒、风机热继电器、交流接触器等)三部分各为独立系统,应根据锅炉的具体情况和用户要求选择。
    7) The burner can be assembled in two ways: integral type and split type. Integral type, that is, the burner body, burner fan and combustion system (including oil pump, solenoid valve, servo motor, etc.) are integrated; Split type, i.e. burner body (including combustion head, fuel oil or gas system), burner fan and burner control system (including control box, fan thermal relay, AC contactor, etc.) are independent systems, which shall be selected according to the specific conditions of boiler and user requirements.
    8)应选用结构简单、运行可靠、便于调节控制和修理、易于实现燃烧过程自动控制的燃烧器。
    8) Burners with simple structure, reliable operation, easy adjustment, control and repair, and easy to realize automatic control of combustion process shall be selected.
    9)应对燃烧器品牌、性能、价格、使用寿命及售后服务进行综合比较。
    9) The brand, performance, price, service life and after-sales service of burner shall be comprehensively compared.
    10)燃烧器的风压除要考虑克服锅炉本体的阻力外,还应克服节能器和烟气系统的阻力。
    10) In addition to overcoming the resistance of boiler body, the air pressure of burner shall also overcome the resistance of economizer and flue gas system.