Pneumatic pneumatic - valve Submerged electromagnetic pulse pneumatic valve possible fault and exclusion methods

. Short circuit, run small resistance reasons might be: flue gas bag breakage, pressure measuring device, or main induced draft fan current meter failure; Ruled out: the visible emission concentration add check and repair welding, checking and changing the filter bag, change or repair the fan current meter. 。 Running resistance big reason may be: condensation paste bag, electromagnetic pulse pneumatic valve does not work or damage, the compressed air pressure is too low, the submerged type electromagnetic pulse pneumatic valve working pneumatic valve closes lax, one or more of the ascension of pneumatic valve in the closed state. Eliminate way: blocking air leakage progress of flue gas temperature, enhance drafty, do a good job filter and piping heat preservation; Protection or submerged type electromagnetic pulse pneumatic valve switch; Check gas path and air compressor; Check the promotion pneumatic valve and slag discharge control device. 。 Submerged electromagnetic pulse pneumatic valve does not work the reason may be a power outage or soot cleaning master device failure; Electromagnetic pulse pneumatic valve with sundry, always leak; Submerged electromagnetic pulse pneumatic valve coil burn out; The compressed air pressure is too low. Exclude: slag discharge control device to restore power or repair carefully liquidation electromagnetic pulse pneumatic valve; Replace the electromagnetic pulse pneumatic valve coil; Check gas path system and compressor. 。 Repair or exchange of filter bag under normal circumstances, the filter bag is gradually destroys the application period, important reason is that dust abrasion, high temperature, high humidity caused by filter material deterioration. Dust catcher cannot use the broken filter bag, otherwise it will affect dusting consequences. Replace the new filter bag should be fulfilled according to article 4 of the test, after to add resistance, allowing new filter bag close to resistance. 。 Promotion of pneumatic valve does not work the reason may be a power outage or dust holding device failure; Cylinder bad or death; Electromagnetic reversing cylinder solenoid coil burn out; Cylinder solenoid pneumatic valve is too dirty, ventilation blocked or pneumatic valve core dry mouth, not activities; The compressed air pressure is too low, luan is the national famous old revolutionary base areas; Eliminate way: dust holding restored or repair; Careful examination, liquidation, repair cylinder; Changing electromagnetic reversing solenoid coil; Check the pneumatic system and tightening machine.
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