Gas burner is a modern industrial furnaces extremely important part of the natural gas burner selection will directly affect the future productivity of the kiln, rational and efficient natural gas burner combustion furnaces should fully meet the heating and heat transfer aspects required condition must be considered together burners and furnaces. Natural gas burner type and power of choice, the only choice of product samples, is not enough, because the technical parameters detailed enough to make selection easy burner, often will bring a lot of troubles in use. Select the appropriate burner, in addition to master burner characteristics, ignition, stable combustion range, need a clear and common understanding of the characteristics of the kiln burner fault, gas burner choice, not all complex structure, price expensive is for you, must be combined with their own situation and kiln-benefit considerations, the following are a few finishing selection basis, for reference. 1, the total heat (total gas consumption) furnaces required, or single burner gas consumption. 2, the type of fuel to use, pressure, stability, calorific value, secret, viscosity, whether it contains impurities and air supply systems and equipment. 3, combustion air temperature, air supply equipment and systems. 4, the size of the combustion chamber, the thickness of the furnace wall, the installation position, requires the flame shape, direction, temperature, atmosphere and the like. 5, the furnace pressure and high temperature condition. 6, regulation requirements, automatically or manually. 7, an ignition device and matching conditions, conditions and requirements flameout 8, waste heat utilization and emission requirements. Gas burner, energy saving, high speed and efficiency, flame stability, no tempering fire off phenomenon can be adjusted ratio of 1:10, smoke emission standards for forging furnace, heat treatment furnace workpiece, mold roaster and other types of furnaces, conventional models 150kw, 230kw, 320kw, 450kw, 630kw, 1000kw can be customized according to customer non-standard furnace conditions, support cash on delivery settlement, and provide technical support burner installation and system design Second, burner Feature Overview 1. Definition of the principle of burner burner simple definition to be installed in the furnace kiln burner. Currently used as a low-pressure furnace burners on high-speed burner or sub-high-speed burner, is characterized by high-speed burner burner combustion gas exit speeds of up to 80 m / sec or more, the combustion air by the outlet of the combustion gas temperature workpiece heating temperature is reduced to close to the temperature. High-speed burner heat to promote its high-speed air circulation furnace, furnace temperature uniformity reduces the temperature difference between the flame and the workpiece, effectively improve the thermal efficiency furnace 2, the technical parameters of gas burners varieties: natural gas, liquefied petroleum gas pressure: Natural gas LPG combustion air pressure 5.0--6.0 KPa 5KPa maximum gas flow rate: 100 m / s burner turndown: 1:10 Noise level: compliance with national standards and burner-related characteristics 3. Tempering: flame spread faster than fuel air mixture through the nozzle velocity, phenomena inside the burner flames to spread is called tempering. Tempering temper generally produce noise, back hot Ming. Severe burn interrupted. Pre-mixed and semi-premixed burners will have tempered dangerous. External mixing burner, fuel and air in the burner external mixing, tempering phenomenon does not occur. Off the fire: a stable combustion requires a stable point, the flame is continuously lit area. Fuel and air mixture flow rate exceeds the flame propagation speed caused by the flame from a stable point called off the fire. The greatest threat to the combustion stability is off the fire, from the fire is usually the main cause of the flame extinguished. Third, the burner flame selection therefore stable combustion conditions, the flow rate of combustible gas mixture of flame and equal and opposite directions, which is the key point in the research we've been through a lot of data and laboratory tests have basically found a relatively reasonable the range and applications in a variety of furnace conditions, Hebei burner market, Henan burner market, Shandong burner markets are well represented. At this point, great honor company pay more attention flame stable design, look for energy-efficient gas burners Safety burner combustion under the premise, but I hope that the expert guidance, ask for their valuable advice with the customer. According to customer kiln, the fuel heating value, different designs of different sizes burner gas pressure, gas burner, gas burner, industrial furnace burner, low-speed burner, energy-saving gas, affordable is our the common aspiration of gas combustion are usually three ways: diffusion combustion, partially premixed combustion and fully premixed combustion. First, the diffusion combustion gas and the air is not pre-mixed, namely the primary air coefficient α = 0, outflow of gas from the fire hole, the combustion air needed to completely rely on diffusion to obtain from the surrounding atmosphere, the combustion is called diffusion combustion. For example, the gas leakage from the combustion pipe leakage hole when, belongs to this form. Diffusion flame burning long and weak, it is like a candle flame burning as divided into three layers, the center of the dark flame, which is not yet reached ignition temperature of the combustible gas stream; bright luminescent intermediate layer, this layer is the thermal decomposition of hydrocarbons into carbon and hydrogen, free carbon at high temperature burning luminescence; outermost layer is diffused in the combustible gas formed by the combustion air. The exterior of the diffusion combustion flame pulled too long, and yellow, but still see the lower part of the outer thin layer of blue, which is the result of ambient air can not enter the interior of the flame ("entry" is refers to the air and gas mix), this diffusion combustion is usually used in the industrial production of chemical raw materials (carbon black), also commonly used in the ignition source of fire. Since the diffusion combustion air by diffusion carried out, mixing slow, so the lower flame temperature, often incomplete combustion occurs. LPG should not use this combustion mode, because the amount of air required for combustion more. Diffusion type burners is based on the principle of laminar diffusion to design. The amount of air required for combustion, commonly used to increase the excess air ratio way to provide. But a way to increase the use of excess air combustion temperature will drop, combustion deterioration, low heat intensity. As to take appropriate measures forced air, it can increase the air turbulence, to improve thermal strength, reduce the role of the flame length. Second, part of the premixed combustion gas and air if needed partially mixed in advance, that is 0 <α? 1, all of the air needed for combustion can be fully pre-mixed. This combustion process is more advanced in modern gas way, it belongs to the premixed combustion air a special form. Because this provides a reasonable combustion combustion of fuel, so that the gas in the chemical energy into heat energy in the process with minimal loss. This burning, since fully premixed gas and air, the combustion was carried out very quickly, almost can not see the flame, it is also known as flameless combustion. Its high combustion temperatures, a large thermal strength, about diffusion combustion 100 to 1,000 times the intensity of the heat. Gas infrared emitters is using this combustion work.