Solutions to problems in high-altitude heating

Solutions to problems in high-altitude heatingVaZBoiler Burner
The air in the plateau is thin and the oxygen content is lower than that in the plain. Combustibles are not easily ignited, and the heating problem in the plateau is difficult to solve for a long time. However, the following measures can be taken to alleviate it.VaZBoiler Burner
1、 Preferred burner.VaZBoiler Burner
The output power of the plateau burner is only half of the maximum output power of the plain. Therefore, selecting half of the maximum power of the burner is the maximum output power of the plateau; The smaller the minimum output power value of the burner, the better.VaZBoiler Burner
2、 Improve the quality of fuel atomization.VaZBoiler Burner
There are two methods to improve the quality of fuel atomization: 1. Choose a small nozzle to increase oil pressure; 2. Preheat the fuel to reduce its kinematic viscosity.VaZBoiler Burner
The improvement of atomization quality, the acceleration of fuel evaporation rate, and the increase of opportunities to come into contact with oxygen are beneficial for high-altitude anaerobic combustion. But the preheating temperature should not be too high, otherwise the oil viscosity is too low, which is not conducive to the lubrication of the burner gear pump and affects the service life of the nozzle and gear pump.VaZBoiler Burner
3、 Strengthen the combustion intensity of the combustion chamber.VaZBoiler Burner
1. Choose a burner with a high rotational strength air distribution device.VaZBoiler Burner
The larger the rotation intensity Ω value, the stronger the jet rotation and the stronger its ability to mix with the surrounding medium; At the same time, the diffusion angle of the jet increases, the range is shorter, and the reflux zone increases. From combustion physics, it can be seen that an increase in the recirculation zone is beneficial for combustion.VaZBoiler Burner
2. Choose a nozzle with a smaller atomization angle.VaZBoiler Burner
The atomized fuel has a conical shape and a small atomization angle, which is beneficial for the fuel to quickly roll into the reflux zone and fully burn coal.VaZBoiler Burner
3. Place a blunt body behind the reflux zone.VaZBoiler Burner
After the reflux zone, creating a reflux to form a stable combustion zone, fully burning the unfinished gas, can effectively reduce the phenomenon of coking caused by oxygen deficiency, reduce the excess air coefficient, and improve the burner power.VaZBoiler Burner
Insert a blunt body and use it to generate a reflux zone X/D10:00 (X is the distance of the airflow along the axis), with a concave area near the axis; But after X/D>20, there is nothing at allVaZBoiler Burner
4. Add a cone in front of the combustion chamber cone.VaZBoiler Burner
Due to the high temperature of the gas in the torch, when there is an attached cone in front of the combustion chamber, the gas can be heated to a very high temperature, allowing the unburned CO in the gas to undergo secondary combustion, effectively reducing the phenomenon of carbon deposition in the heat exchanger.VaZBoiler Burner
5. Open holes in the combustion tube of the burner.VaZBoiler Burner
The purpose is to use the high-temperature flue gas in the combustion chamber to mix with the combustion air, heating the combustion air, which is conducive to the evaporation of atomized fuel and accelerating combustion.