How do all components of biomass pellet burner work?


How do all components of biomass pellet burner work?

The main types of fuels used by burners are as follows: liquid fuels (including diesel and kerosene only), heavy oils, residual oils, etc., solid fuels (biomass pellets, sawdust, wood chips, wood powder, etc.), and gases (natural gas, artificial gas, liquefied petroleum gas, coal seam gas, biogas, methanol, etc.). There are also significant differences in composition and calorific value among urban gas, methane, and biogas due to differences in materials and generation methods.

Then how does each component of the biomass pellet burner work? The accessories of the biomass pellet burner are an important part of the burner. Let us take a look at the operating process of the biomass pellet burner.

1. Check the water level, temperature or pressure of the boiler.

2. Check the gas pressure and air pressure of the burner manufacturer, and check if there is any remaining fire. When the fuel is diesel, check the storage capacity of the oil tank and whether the oil pipe and oil pump have been filled with oil.

3. Leakage detection stage of gas valve group: check whether the gas valve is airtight.

4. Pre-explosion purge phase: fully open the valve to purify the furnace, eliminate residual gas in the furnace, and provide oxygen to the opening, facilitating the combustion process.

5. Wind pressure detection: Ensure normal operation of the blower.

6. Combustion stage: Close the wind door to the combustion position, open the combustion transformer and combustion valve to achieve automatic combustion.

7. Confirm that the flame has been established.

8. Open the damper to the main fire position, open the main gas valve, and establish the main fire.

9. Close the combustion valve and confirm that the main flame has been established.

10. Implement changes in large and small flames or adjust the size of the flame proportionally according to the temperature or pressure control surface.

Throughout the operation process, monitor the water level, temperature or pressure, gas pressure, wind pressure, flame, etc., and close the burner and gas valve abnormally and issue an alarm.

What determines the heating capacity of the burner Do you know that the heating capacity of the burner depends on the intensity of the flame, the area of ​​the heat exchange tubes, and the overall heat transfer coefficient? Even if I don’t know, I’m not connected now and you’ll find out right away.

Firstly, we should know the intensity of the flame. The stronger the flame, the higher the furnace temperature, the greater the temperature difference between the furnace and the oil flow, and the more heat transfer. The intensity of the flame can be controlled by controlling the nozzle;

Secondly, the heating function is related to the area of ​​the heat exchange tubes. The larger the area where flames and flue gas contact with the heat exchange tubes, the more heat transfer occurs;

Thirdly, other total heat transfer coefficients are very important. The better the overall heat transfer coefficient of the heat exchanger tubes, the more reasonable the structure of the furnace, and the more heat transfer occurs.

In practical applications, poor combustion and coking of heat exchange tubes affect the heating capacity of the burner. Therefore, it is necessary to control the burner to make it fully combusted and avoid coking caused by excessively high temperatures in some heat exchange tubes.