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 common desire to replace industrial furnace fuel calculation pressure of environmental protection, market competition, forcing companies to replace fuel in industrial furnaces, especially in recent years under the pressure of energy and environmental protection, fuel replacement is a very common phenomenon, generally mistaken only in accordance with the swap ratio of the calorific value of the fuel supply amount of conversion can be performed, resulting in improper kiln burner selection, the power is too little production capacity of less than expected, serious waste heat power is too large, increasing the cost of doing business. In fact, the replacement of the fuel is not a simple calculation of calorific value than that of the fuel combustion efficiency, heat fuel efficiency, fuel and combustion air is preheated furnace heat circulation, and other conditions. General industrial furnaces, two different calorific value of the fuel, conversion relationship between its consumption as follows: qm (v) 2 / qm (v) 1 = (Qyd + qw) 1αy1 / (Qyd + qw) 2αy2 formula The qm (v): two kinds of fuel consumption, kg (Nm3) qw: after preheating the fuel and air into the heat, kJ / kg (Nm3); αy1, αy2: 1,2 fuel heat utilization. αy = (Qyd + qw- (Q2 + Q34)) / Qyd where Q2: flue gas heat away Q34: Unit incomplete fuel combustion heat away for gas: Q34 = (0 ~ 0.01) Qyd for fuel oil: Q34 = (0.01 ~ 0.03) Qyd for coal: Q34 = (0.05 ~ 0.1) thermal efficiency Qyd look-up table made of various fuels in thermal engineering or consulting professionals. This formula applies to conventional furnaces and fuel, thermal efficiency look-up table to obtain other fuels in thermal engineering or consulting professionals. (Zhengzhou great honor heat finishing).