Optimal Design and Application of Oil Boiler Ignition Device
Aiming at the problem of short mean time between failures(MTBF)and inconvenient mainte-nance of oil boiler ignition device,the boiler ignition device was re-optimized and successfully applied in a laboratory.Firstly,the ignition electrode subassembly and high voltage junction box subassembly were optimized from split structure into integrated structure,and the original connection rod was replaced by a tension spring,so that the ignition device with telescopic function can be moved with the burner damper.Then,the high voltage contact box was extended and covered inside the fixed guide plate to play the role of insulation and guidance for the tension spring and electrode subassembly,and the electrode length was extended with ceramic sheath to improve the oxidation resistance of the electrode.Finally,the front fixed plate was cancelled,and the insulated whole magnetic block was changed to the upper and lower halves of the stainless steel plate,which can prevent the heavy oil from coking on the pressure plate,and also prevent the condensate water from discharging on the pressure plate.The optimized boiler ignition device had been fully verified in a laboratory.The research result shows that the optimized boiler ignition device runs stably and reliably,and the MTBF of boiler ignition device is greatly increased from 2 360 to 4 120 hours,which is equivalent to saving 0.75 boiler ignition device per boiler and reducing a lot of mainte-nance and replacement costs.Moreover,the optimized boiler ignition device can be maintained and re-placed outside the boiler at any time,greatly reducing the maintenance and replacement time.
boilerignition devicemean time between failures(MTBF)maintenance
万方数据
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