Writer： admin Time：2022-07-07 00:00 Browse：℃
The gas burner is a fuel and air into the furnace continuously, rational organization of the pulverized coal flow, and allowed to mix well, rapid and stable ignition and combustion of a burner apparatus. With the view of the gas burner operation
Operation of the gas burner
Available high-voltage transformer combustion burning arc, which required energy output: voltage ≥3 5K V, current ≥15mA, combustion time is generally: 2 to 5 seconds. Monitoring combustion, combustion dynamics need to be monitored, once the flame detector flame sensed signal, it is necessary to the reaction gas to the burner in a very short time, then into the protective case, with the gas supply cut off. Flame detectors sense to be able to properly measure the flame signal, neither active, nor Rescinding the Prohibition. Since the active, if combustion is not firm prone to malfunction and Rescinding the Prohibition, reactive flame signal is delayed, it is not conducive to the job. General requirements for echo time declaration signal from the flame to flameout flame detector does not cross the 0.2 seconds. Misfire protection, natural gas burner, into gas, combustion gas ignition. Operation request occurs before the combustion gas through the first field constituting the combustion temperature to facilitate ignition and combustion. Assumed misfire, flame detector not sense the flame signal, into the protection of gas burners. From burning to enter the protection of the right to time, neither too short nor too long. If it is too short, no time constitutes a stable flame; too long, when many gas into the furnace configuration when misfire. General requirements in 2-3 seconds into a gas, a burner flame detector flame sensed signal is judged, the process proceeds to protection of unfired, insisted ignition combustion. Flameout protection, burner in the combustion process, if the accident shut down the burner into the protective case. Because the furnace is hot. Gas enters prone to knocking, it should be a very short time into the protective case, the gas supply cut off. From the combustor flameout into protective case, echo time of the process requires no more than 1 second. Uneven gas pressure limit protection, stable combustion of the gas burner has a certain plan, only to allow the gas pressure is not within a certain planning firm. Intending to be bound gas pressure bump is to ensure a stable flame resistance: not from the fire, not the flame is not tempered with restraint burner thermal power output, ensure that equipment economic work. When the gas pressure exceeds this plan, it should recognize the burner operation. Usually a gas burner planning pressure switch sensing pressure signal, and outputs a switch signal to control the respective operations of the combustor.
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