Catalytic ignition and drying in the village
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I would like to ask everyone: when using catalytic furnaces for heating in villages, is fuel oil or fuel gas used as the fuel? If fuel gas is used, once the flame goes out, could a large amount of fuel gas in the system reach an explosive limit?
Generally, fuel gas is used first; if the temperature can meet the requirements of the dryer, no oil or fire is needed. If the temperature is not sufficient, an appropriate amount of oil or fire can be used, but care must be taken to prevent overheating. If the supply of fuel gas is interrupted and the burner goes out, it is not possible to ignite it immediately – gas sampling must be conducted first, and ignition can take place only after the results are satisfactory
What was said above regarding the use of oil and gas is clear: once the furnace shuts down, the fuel gas valve should be closed to analyze the level of explosive gases inside the furnace; once it meets the requirements, the furnace can be restarted. If it is kept flowing for an extended period without being turned off in time, there is a possibility of reaching the explosion limit.
There will definitely be a large amount of fuel gas, so ignition cannot be carried out immediately; the correct approach is to purge it with air or steam before attempting to ignite it again.
LPG is used, and to prevent sudden shutdowns, on-site supervision by a dedicated person is required.
Isn’t there a perpetual light? Can an eternal flame solve the problem of fuel gas leakage?
Regardless of the furnace type, after it is turned off, it must strictly be purged with air or nitrogen before it can be restarted! A coal stove for home use doesn’t need to be that complicated; P
In a secondary combustion chamber, the fuel gas is ignited first; once stability is achieved, the amounts of primary and secondary air as well as the pressure of the burning oil are adjusted based on the temperature. By switching to oil for combustion, the color of the flame is observed to determine whether the combustion is thorough enough. If the flame goes out after changing the fuel, quickly turn off the fuel gas, and wait for five minutes before turning it back on.
Generally, light the gas flame; if it goes out, immediately purge it with steam, and after the analysis shows satisfactory results, light the furnace again.
Yes, my device uses liquefied gas to be heated and vaporized; once the flame goes out, a large amount of fuel gas mixes with the main air, and when this reaches the explosion limit, an explosion occurs. Therefore, it is necessary to adjust the amounts of primary and secondary air properly, while also assigning someone to monitor the situation and adjust the ratio of primary and secondary air based on the color of the flame!
A dedicated person must be assigned to monitor the ignition process every time it starts, so that any issues can be detected and addressed promptly!