Guide: There are many types of boiler fuel, including common coal-fired boilers, gas-fired boilers, oil-fired boilers, electric boilers, and many other boilers. However, with environmental protection and economic conditions, most of the gas boilers are now used in the market. When it comes to gas boilers, it is necessary to improve the burner of the gas boiler, and then share some knowledge of the safe operation process of the gas boiler burner.
There are many types of boiler fuel, including common coal-fired boilers, gas-fired boilers, oil-fired boilers, electric boilers, and many other boilers. However, with environmental protection and economic conditions, most of the gas boilers are now used in the market. When it comes to gas boilers, it is necessary to improve the burner of the gas boiler, and then share some knowledge of the safe operation process of the gas boiler burner.
¶ 1. There are three aspects to the inspection before the commissioning of the burner.
1. Check whether the gas is in place, whether the gas pipeline is clean and unobstructed, and whether the valve is open.
2. Whether there is pipeline leakage and whether the pipeline installation is reasonable.
3. Bleed air from the pipeline before the gas valve to ensure that there is no mixed air in the pipeline, and the exhaust pipe should be connected to the outdoors.
¶ 2. Internal inspection of gas boiler burner burner
1. Whether the combustion head of the burner is installed and adjusted properly.
2. Whether the direction of motor rotation is correct.
3. Whether the external circuit connection meets the requirements.
4. Perform cold simulation of the burner according to the line conditions, and observe whether the various parts of the equipment are normal and whether the flame detection protection part is normal.
¶ 3. Debugging of gas boiler burners
1. Check whether the external gas is in place, the pipeline is unobstructed, and the external power supply is in place.
2. Adjust the load of the burner to a small load, and adjust the ignition position to a small load accordingly. Turn off the large load to ignite and observe the flame situation. Adjust the servo motor or the opening of the air door according to the flame situation to achieve a proper combustion state.
3. Gradually increase the load, adjust the servo motor or the opening of the air door point by point according to the flame situation to achieve a proper combustion state.
¶ 4. Precautions for gas engine debugging and maintenance
1. When the gas burner fails to re-ignite continuously, it should be shut down to check whether the gas supply system of the burner is normal and the circuit connection is correct. The burner can only be restarted after the failure is resolved.
2. It is strictly forbidden to strike and rub the gas supply pipeline with a wrench or metal rod to avoid static electricity or sparks, which may cause a gas explosion.
3. Smoking, welding, cutting and other illegal operations are strictly prohibited in the air supply valve group or the pipe flange surface.
4. It is strictly forbidden to conduct any open flame test near the pipeline, valve block and pressure regulating valve to avoid major accidents.
5. Test whether there is fuel in the gas supply pipeline, usually with a gas low pressure meter.
6. In the gas supply pipeline, it has been evacuated, but there are residual gas or liquid droplets on the pipe wall. If it encounters static sparks and open flames, it will also cause combustion and explosion.
7. When the gas supply pipeline has been ventilated and the valve group has a fault, it needs to be disassembled. First, the front main valve of the valve group must be cut off, and then the gas in the pipeline from the main valve to the valve group can be vented before the valve group can be disassembled and repaired.
8. In the debugging work, the gas must be serious and safe. …
9. It is prohibited to use non-explosion-proof electric power tools on site.
10. It is recommended to use a leak detection device for burners of 600,000 kcal and above.
