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Under what circumstances can a natural gas heater explode?

2017-01-20View Original

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Ask an expert a question: Under what circumstances can a natural gas heater explode (it is a regenerative through-type heater equipped with blowers and exhaust fans)?
Reply #22017-01-20
There are many situations in which an explosion occurs, such as: 1. The ignition fails, so attempts to ignite it again are made. 2. Natural gas leakage. 3. The electrical equipment is not explosion-proof. 4. The burner lacks an anti-backfire device. 5. The pipeline lacks static electricity grounding measures. Wait
Reply #32017-01-31
1. When ignition occurs, deflagration or explosion can happen if the gas waits for the fire; it should be the fire that waits for the gas. 2. During operation, poor exhaust or insufficient air intake can also lead to flameout and explosion. 3. When shutting down, turning off the fire first and then the gas can result in accidents. 4. Leaks in the gas supply pipes or facilities, in the absence of leak detection alarms, can also cause accidents; alarms and valve interlocks should be installed. 5. The flue ducts should not be shared with other air ducts to prevent accidents. 6. The electrical equipment and ceiling lights in the heating furnace area should be explosion-proof. 7. If the heating furnace area is located underground, the end point of the gas pipelines should be led to an outdoor area above ground. 8 During operation, the door should not be closed to ensure air supply
Reply #42017-02-06
Possible reasons include: 1. Short purging time, resulting in incomplete displacement; 2. The natural gas valve does not close properly ; 3. Poor smoke exhaust, etc.
Reply #52017-02-07
1. When ignition occurs, deflagration or explosion can happen if the gas waits for the fire; it should be the fire that waits for the gas. 2. During operation, poor exhaust or insufficient air intake can also lead to flameout and explosion. 3. When shutting down, turning off the fire first and then the gas can result in accidents. 4. Leaks in the gas supply pipes or facilities, in the absence of leak detection alarms, can also cause accidents; alarms and valve interlocks should be installed. 5. The flue ducts should not be shared with other air ducts to prevent accidents. 6. The electrical equipment and ceiling lights in the heating furnace area should be explosion-proof. 7. If the heating furnace area is located underground, the end point of the gas pipelines should be led to an outdoor area above ground. 8 During operation, the door should not be closed to ensure air supply: victory:

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