Brief Introduction To Low NOx Burner Of Heat Transfer Oil Furnace
Brief Introduction To Low NOx Burner Of Heat Transfer Oil Furnace
The heat transfer oil furnace is also called the organic heat carrier furnace, commonly known as the heat transfer oil boiler, and the official name is the hot oil furnace. It is a new type of thermal energy equipment that uses coal, oil, and gas as fuel and heat transfer oil as a circulation medium for heating. The heat transfer oil furnace refers to a new type of thermal energy conversion equipment that carries high-temperature heat transfer oil (also known as hot coal and heat carrier). The advantages of the heat transfer oil furnace are “high temperature and low pressure” and smooth operation.
The emission of domestic environmental protection ultra-low NOx heat transfer oil boiler burner is less than 30mg/L, and methanol and natural gas are used as fuels to provide high-efficiency heat energy for the heat transfer oil boiler. In addition, the ultra-low nitrogen burner adopts a unique structural design, so that the flue gas generated in the combustion process forms forced reflux near the furnace, stabilizes the flame, reduces oxygen concentration, and reduces NOx emissions. At present, low nitrogen burners are mainly used for the transformation of various oil refining heating furnaces, large steam boilers, and coal-fired boilers. Heat transfer oil, also known as organic heat carrier or heat medium oil, has a history of more than 50 years in the industrial heat exchange process. Generally, the burner of a heat-conducting oil furnace uses coal, oil, and gas as fuel, heat-conducting oil as medium, hot oil circulation pump to force the medium to circulate in the liquid phase, return the heat energy to the heating furnace for heating, and obtain high operating temperature under low pressure. It can control the operation of the medium with high accuracy. The burners of most gas-fired heat-transfer oil boilers are imported, and the imported low-NOx burners are environmentally friendly products with full combustion. When the outlet oil temperature of the ultra-low nitrogen burner boiler is lower than the set outlet oil temperature limit, the inlet oil temperature is normal, the inlet and outlet oil pressure difference is normal, and the outlet oil temperature of the boiler is higher than the set upper limit of outlet oil temperature by – 5 ℃, turn off the two-stage fire of the burner, so that the boiler outlet oil temperature of the first stage fire is higher than the set upper limit of outlet oil temperature, turn off the alarm of the first stage fire and the inlet burner of the second stage fire of the burner, and immediately turn off the boiler burner. The supply of natural gas is mainly natural gas. The main functions of the refrigerator are the refrigerator and the control room. The burner is used for ignition inspection, adjusting the ratio of fuel oil and air, and controlling the opening of the burner according to the load. An air preheater is a device that uses exhaust gas to heat flue gas.
The environmental protection standard for low nitrogen burners of thermal conductive oil industrial boilers requires that the emission of boilers should be less than 30mg, overcome the offensive of atmospheric management, promote the technological progress of energy utilization industry and social sustainable development, and improve the quality of the ecological environment. Europol, a domestic ultra-low nitrogen burner, is popular with many domestic enterprises. It has developed low nitrogen burners with stable operation performance, perfect safety logic, low pollutant emission, and high integration. The main system and structural features of this burner are the integrated design of the burner control system and the burner body. The control system takes the professional combustion program control system as the center to meet the needs of user equipment for high integration, automation, and low maintenance of the burner system. Small and medium-sized thermal energy equipment generally includes small and medium-sized industrial boilers, such as hot water boilers, steam boilers, heat-transfer oil heaters, and other heating medium equipment under 8 MW; It also includes general production and heating technologies in the field of food thermal processing, hot blast furnaces, baking equipment, etc. Some incinerators paint tail gas treatment and other process equipment. Europol, a domestic brand, has developed an ultra-low nitrogen burner, which is characterized by safety, stability, and low pollutant emission. This product is applicable to several kinds of gas fuels (such as natural gas, urban gas, liquefied petroleum gas, etc.), meets the latest and most stringent national environmental protection standards, and can operate stably for a long time to achieve the following technical indicators: ultra-low nitrogen oxide emission level (< 30mg / Nm3), CO pollutant emission value < 15ppm, Sox < 3ppm, Noise <85db (a), etc. Combined with years of technical engineering experience under complex chemical conditions, the combustion control concepts such as flue gas internal circulation, fuel grade, air grade, and wall flow technology are integrated. The low nitrogen control strategy of the whole unit greatly improves the performance of ultra-low NOx emission and stable operation while maintaining a wide burner regulation ratio.