As a kind of combustion equipment, the safe operation of a gas burner is very important. This is the key to determining whether it can operate normally. Therefore, you need to pay attention to many details when operating a gas burner. The following are the details of the gas burner manufacturer. I hope you can help everyone with the detailed information about the gas burner debugging and ignition precautions that you have introduced.
1. Precautions before commissioning and ignition of gas burner
1. Confirm that the supply valve is closed
Make sure the fuel supply valve is in the closed position before ignition is started.
2. Check pipeline connections and pressure
For gas burners, check whether the gas pipeline connection is correct. The correct connection sequence is: fuel pipe → hand valve → filter → double solenoid valve → burner. Each component is marked with a directional arrow, which can be calibrated and confirmed whether the gas supply pressure meets the requirements.
3. Check whether the gas pipeline is leaking
For gas pipelines that have not been accepted by the gas department (such as self-built liquefied gas stations or compressed gas stations), if conditions permit, check whether there are leaks in the gas pipelines.
4. Check electrical and power supplies
Before ignition, all electrical connections should be checked and calibrated according to the electrical wiring diagram of the model used. At the same time, confirm whether there are any abnormalities in the power supply (such as high or low voltage, unbalanced three-phase power supply), and the three-phase motor must be Confirm forward and reverse rotation, and reverse operation is strictly prohibited.
5. Check internal components
Check the appearance, installation and connection of the relevant internal components of the gas burner (such as ignition transformer, control box, servo machine, air pressure switch, oil pump and fire detection device). If there are any abnormalities, you should first clarify the situation and eliminate hidden dangers. , and then proceed with follow-up work.
6. Drain the gas pipeline
For gas burners, the gas pipeline should be drained before ignition. The existing gas drain pipe must be used for draining. If there is no drain pipe, use a hose to connect the exhaust port on the gas pipeline. When emptying outdoors, there may still be a small amount of air between the pipeline discharge port and the gas solenoid valve that cannot be discharged directly. At this time, you can remove the plug on the side of the solenoid valve for emptying and check whether there is any gas smell. , once it occurs, seal the plug immediately to stop emptying, and turn on the indoor ventilation device for ventilation.
7. Check whether the pipeline is leaking
The fuel hand valve can be opened during official ignition. At this time, the connecting pipeline from the hand valve to the gas burner should be checked for leaks. If there is leakage, the leakage problem should be solved first before ignition can be started.
8. Cold operation inspection
For gas burners, cold running inspection must be carried out during formal ignition. That is to say, when the air source is cut off, power on the burner to run, check whether the operating sequence of the burner is normal, and observe whether the electrical and mechanical parts of the burner are running normally or the transmission is normal. If you have any questions or are not sure, you can repeat it several times. , follow-up work can only be carried out after confirming that everything is normal.
9. Check the flue baffle
When confirming the formal ignition, you should check whether the flue of the boiler or heating furnace has a flue baffle. If so, make sure that the baffle is in the open position, and the position of the baffle must be fixed firmly and must not be shaken. At the same time, confirm whether there is water in the boiler to avoid overheating and damaging the boiler.
10. Select the ignition amount
Before ignition, the ignition amount of the fuel should be carefully selected to avoid ignition and deflagration. The output data of the equipment and the matching with the boiler should be checked first, and then the ignition amount should be determined. Generally, the ignition output is in the range of 20%-50% of the boiler's rated load. When there is a large burner with a small boiler furnace, special attention should be paid to safety. If you have any questions or are not sure, you can first adjust the ignition position a little smaller.
11. Make sure there is no flammable gas
In order to ensure that the furnace is clean and safe, and that there is no flammable gas, the furnace can be forced to blow by directly starting the fan. Of course, when forced blowing, attention should be paid to ensuring that the air door and flue baffle are in the open position. The forced blowing time is preferably longer than one minute. .
12. Open flames and unrelated personnel are strictly prohibited
Before the official ignition, attention should be paid to evacuating surrounding unrelated personnel. Relevant staff staying on site should be informed to try to avoid staying in front of, behind or near the boiler axis. If there is open flame or smoking on site, it should be eliminated or discouraged.
2. Things to note when debugging and igniting the gas burner
1. When ignition fails
(1) Analyze the reasons
Do not act rashly, analyze the cause carefully, and eliminate non-problematic components or aspects through elimination methods.
(2) Fuel valve operation method
Under normal circumstances, it is strictly forbidden to directly energize the fuel valve. When the fuel valve must be inspected to eliminate the fault point, the hand valve on the fuel supply pipeline must be closed, and confirm that the hand valve is closed and there is no leakage. At the same time, find other staff to check the valve. Carry out fixed-point monitoring to prevent others from misoperation.
(3) Forced air blowing in time
When multiple ignitions are unsuccessful, attention should be paid to the combustible gas remaining in the furnace. If necessary, forced air blowing should be carried out in time, and indoor ventilation should be done well.
(4) Control the ignition amount
When ignition fails multiple times, the ignition amount cannot be increased significantly. After carefully judging the cause, it is necessary to increase the ignition amount before adjusting the ignition steadily and quantitatively.
2. When ignition is successful
(1) Measure the ignition amount
Measure the amount of ignition carefully and never make it too large or too small. At the same time, observe the color of the flame. The flame should not be too blue or red. If possible, use a flue gas analyzer for measurement and correction.
(2) Control the amount of fuel
When adjusting the maximum output of the burner according to the technical requirements of the boiler and burner, the fuel amount must not exceed the maximum range of the boiler or burner.
(3) Check the fuel pipeline
Since the leakage of the pipeline after the fuel solenoid valve cannot be checked during the pipeline leakage check before ignition, the fuel supply pipeline should be checked for leakage when the flame is stable and burning normally to ensure that all connections are not leaking. .
(4) Restoration component device
After the gas burner is debugged normally, carefully recall the components and devices that were moved during the ignition process, and reconnect and install them to ensure their return and restoration.
The above is all the precautions for gas burner debugging and ignition. This article provides a comprehensive explanation of the precautions before, during and after ignition of the gas burner. There are many things to pay attention to. I hope everyone will read it carefully and pay attention to safe operation. .
As a kind of combustion equipment, the safe operation of a gas burner is very important. This is the key to determining whether it can operate normally. Therefore, you need to pay attention to many details when operating a gas burner. The following are the details of the gas burner manufacturer. I hope you can help everyone with the detailed information about the gas burner debugging and ignition precautions that you have introduced.
1. Precautions before commissioning and ignition of gas burner
1. Confirm that the supply valve is closed
Make sure the fuel supply valve is in the closed position before ignition is started.
2. Check pipeline connections and pressure
For gas burners, check whether the gas pipeline connection is correct. The correct connection sequence is: fuel pipe → hand valve → filter → double solenoid valve → burner. Each component is marked with a directional arrow, which can be calibrated and confirmed whether the gas supply pressure meets the requirements.
3. Check whether the gas pipeline is leaking
For gas pipelines that have not been accepted by the gas department (such as self-built liquefied gas stations or compressed gas stations), if conditions permit, check whether there are leaks in the gas pipelines.
4. Check electrical and power supplies
Before ignition, all electrical connections should be checked and calibrated according to the electrical wiring diagram of the model used. At the same time, confirm whether there are any abnormalities in the power supply (such as high or low voltage, unbalanced three-phase power supply), and the three-phase motor must be Confirm forward and reverse rotation, and reverse operation is strictly prohibited.
5. Check internal components
Check the appearance, installation and connection of the relevant internal components of the gas burner (such as ignition transformer, control box, servo machine, air pressure switch, oil pump and fire detection device). If there are any abnormalities, you should first clarify the situation and eliminate hidden dangers. , and then proceed with follow-up work.
6. Drain the gas pipeline
For gas burners, the gas pipeline should be drained before ignition. The existing gas drain pipe must be used for draining. If there is no drain pipe, use a hose to connect the exhaust port on the gas pipeline. When emptying outdoors, there may still be a small amount of air between the pipeline discharge port and the gas solenoid valve that cannot be discharged directly. At this time, you can remove the plug on the side of the solenoid valve for emptying and check whether there is any gas smell. , once it occurs, seal the plug immediately to stop emptying, and turn on the indoor ventilation device for ventilation.
7. Check whether the pipeline is leaking
The fuel hand valve can be opened during official ignition. At this time, the connecting pipeline from the hand valve to the gas burner should be checked for leaks. If there is leakage, the leakage problem should be solved first before ignition can be started.
8. Cold operation inspection
For gas burners, cold running inspection must be carried out during formal ignition. That is to say, when the air source is cut off, power on the burner to run, check whether the operating sequence of the burner is normal, and observe whether the electrical and mechanical parts of the burner are running normally or the transmission is normal. If you have any questions or are not sure, you can repeat it several times. , follow-up work can only be carried out after confirming that everything is normal.
9. Check the flue baffle
When confirming the formal ignition, you should check whether the flue of the boiler or heating furnace has a flue baffle. If so, make sure that the baffle is in the open position, and the position of the baffle must be fixed firmly and must not be shaken. At the same time, confirm whether there is water in the boiler to avoid overheating and damaging the boiler.
10. Select the ignition amount
Before ignition, the ignition amount of the fuel should be carefully selected to avoid ignition and deflagration. The output data of the equipment and the matching with the boiler should be checked first, and then the ignition amount should be determined. Generally, the ignition output is in the range of 20%-50% of the boiler's rated load. When there is a large burner with a small boiler furnace, special attention should be paid to safety. If you have any questions or are not sure, you can first adjust the ignition position a little smaller.
11. Make sure there is no flammable gas
In order to ensure that the furnace is clean and safe, and that there is no flammable gas, the furnace can be forced to blow by directly starting the fan. Of course, when forced blowing, attention should be paid to ensuring that the air door and flue baffle are in the open position. The forced blowing time is preferably longer than one minute. .
12. Open flames and unrelated personnel are strictly prohibited
Before the official ignition, attention should be paid to evacuating surrounding unrelated personnel. Relevant staff staying on site should be informed to try to avoid staying in front of, behind or near the boiler axis. If there is open flame or smoking on site, it should be eliminated or discouraged.
2. Things to note when debugging and igniting the gas burner
1. When ignition fails
(1) Analyze the reasons
Do not act rashly, analyze the cause carefully, and eliminate non-problematic components or aspects through elimination methods.
(2) Fuel valve operation method
Under normal circumstances, it is strictly forbidden to directly energize the fuel valve. When the fuel valve must be inspected to eliminate the fault point, the hand valve on the fuel supply pipeline must be closed, and confirm that the hand valve is closed and there is no leakage. At the same time, find other staff to check the valve. Carry out fixed-point monitoring to prevent others from misoperation.
(3) Forced air blowing in time
When multiple ignitions are unsuccessful, attention should be paid to the combustible gas remaining in the furnace. If necessary, forced air blowing should be carried out in time, and indoor ventilation should be done well.
(4) Control the ignition amount
When ignition fails multiple times, the ignition amount cannot be increased significantly. After carefully judging the cause, it is necessary to increase the ignition amount before adjusting the ignition steadily and quantitatively.
2. When ignition is successful
(1) Measure the ignition amount
Measure the amount of ignition carefully and never make it too large or too small. At the same time, observe the color of the flame. The flame should not be too blue or red. If possible, use a flue gas analyzer for measurement and correction.
(2) Control the amount of fuel
When adjusting the maximum output of the burner according to the technical requirements of the boiler and burner, the fuel amount must not exceed the maximum range of the boiler or burner.
(3) Check the fuel pipeline
Since the leakage of the pipeline after the fuel solenoid valve cannot be checked during the pipeline leakage check before ignition, the fuel supply pipeline should be checked for leakage when the flame is stable and burning normally to ensure that all connections are not leaking. .
(4) Restoration component device
After the gas burner is debugged normally, carefully recall the components and devices that were moved during the ignition process, and reconnect and install them to ensure their return and restoration.
The above is all the precautions for gas burner debugging and ignition. This article provides a comprehensive explanation of the precautions before, during and after ignition of the gas burner. There are many things to pay attention to. I hope everyone will read it carefully and pay attention to safe operation. .