Catalytic Combustion EquipmentVarious Faults May Occur, And The Following Are Some Common Faults And Their Cause Analysis:
Purification Efficiency Decreases Due To Catalyst Failure: After Long-term Use, The Activity Of The Catalyst May Decrease Due To Poisoning, Carbon Deposition, Sintering, And Other Reasons, Making It Difficult For Organic Waste Gas To Fully React, Thereby Reducing Purification Efficiency. Poisoning May Be Caused By Harmful Substances Such As Sulfur, Phosphorus, And Chlorine In The Exhaust Gas, Which React Chemically With The Catalyst And Damage Its Activity; Carbon Deposition Is Caused By Incomplete Combustion Of Organic Waste Gas On The Catalyst Surface, Resulting In Carbon Particles Adhering To The Catalyst And Hindering The Contact Between Reactants And The Catalyst; Sintering Is A Process Where The Microstructure Of A Catalyst Changes Under High Temperature And Other Conditions, Resulting In A Reduction Of Active Sites.
Excessive Concentration Of Exhaust Gas: When The Concentration Of Organic Exhaust Gas Entering The Catalytic Combustion Equipment Exceeds The Designed Treatment Capacity Of The Equipment, The Reaction Rate On The Catalyst Surface Reaches Its Limit, Making It Impossible To Timely Treat All Organic Pollutants, Resulting In A Decrease In Purification Efficiency. In Addition, High Concentration Exhaust Gas May Cause The Catalytic Combustion Reaction To Be Too Intense, Generating Excessive Heat, Resulting In High Equipment Temperature, Which Further Affects The Performance Of The Catalyst.
Equipment Air Leakage: If There Is Air Leakage In The Equipment, External Air Entering The Equipment Will Dilute The Concentration Of Exhaust Gas, Shorten The Residence Time Of Exhaust Gas In The Catalytic Reaction Bed, And Result In Insufficient Reaction, Thereby Reducing Purification Efficiency. At The Same Time, Air Leakage May Also Affect The Airflow Distribution Inside The Equipment, Resulting In High Or Low Concentration Of Exhaust Gas In Local Areas, Which Affects The Overall Purification Effect.
Heating System Malfunction
Heating Element Damage: Heating Elements (such As Electric Heating Wires, Gas Burners, Etc.) May Be Damaged Due To Aging, Overload, Short Circuits, And Other Reasons After Long-term Use. For Example, Electric Heating Wires May Melt Due To Long-term Heating, And Gas Burners May Experience Nozzle Blockage, Ignition Failure, And Other Issues, Resulting In The Inability To Heat Exhaust Gas Properly And Preventing Catalytic Combustion Reactions From Reaching The Required Temperature Conditions.
Failure Of Temperature Control System: The Temperature Control System Is Responsible For Monitoring And Regulating The Temperature Inside The Equipment. If The Temperature Sensor Fails And Cannot Accurately Measure The Temperature, Or If The Control Fails And The Power Of The Heating Element Cannot Be Controlled Correctly, It Will Lead To Temperature Runaway. Possible Occurrence Of Excessive Temperature, Exceeding The Catalyst's Tolerance Temperature And Damaging The Catalyst; Or The Temperature May Be Too Low, Making It Impossible For Organic Waste Gas To Undergo Effective Oxidation Reactions On The Catalyst Surface.
Fan Failure
Motor Malfunction: The Fan Motor May Be Damaged Due To Overload, Overheating, Phase Loss Operation, And Other Reasons. Overload May Be Due To Improper Selection Of The Fan, And The Actual Operating Conditions Exceed The Rated Power Of The Motor; Overheating May Be Caused By Poor Heat Dissipation Of The Motor Or Prolonged High Load Operation; Phase Loss Operation Is Caused By Power Line Faults, Resulting In Unbalanced Three-phase Power Supply To The Motor, Causing The Motor Winding To Burn Out. Motor Failure Can Cause The Fan To Malfunction And Prevent Exhaust Gas From Flowing Inside The Equipment, Affecting The Entire Treatment Process.
Damage To Fan Impeller: During Long-term Operation, The Fan Impeller May Be Worn Or Corroded By Particulate Matter In The Exhaust Gas, Or Vibration May Be Intensified Due To Impeller Imbalance, Resulting In Impeller Damage. Damage To The Impeller Can Affect The Airflow And Pressure Of The Fan, Resulting In Uneven Flow Velocity Of Exhaust Gas Inside The Equipment And Affecting The Effectiveness Of Catalytic Combustion. In Addition, Damage To The Impeller May Also Produce Abnormal Noise And Even Cause Damage To Other Components Of The Equipment.
Catalyst Bed Blockage
Accumulation Of Particulate Matter: If The Exhaust Gas Pretreatment Is Not Complete, The Particulate Matter (such As Dust, Paint Mist, Etc.) Will Enter The Catalytic Reaction Bed With The Exhaust Gas, Gradually Accumulate On The Surface And Pores Of The Catalyst Bed, Block The Active Sites Of The Catalyst, Hinder The Contact Between The Exhaust Gas And The Catalyst, And Reduce The Efficiency Of The Catalytic Reaction.
Polymer Generation: During Catalytic Combustion, Certain Components In Organic Waste Gas May Undergo Polymerization Reactions On The Catalyst Surface, Resulting In The Formation Of High Molecular Weight Polymers. These Polymers Will Cover The Surface Of The Catalyst, Block Pores, Cause Catalyst Deactivation, And Also Affect The Permeability Of The Bed, Increasing The Resistance Of Exhaust Gas Passing Through The Bed.
Safety Device Malfunction
Temperature Alarm Device Malfunction: The Temperature Alarm Device Is Used To Monitor The Temperature Inside The Equipment And Issue An Alarm When The Temperature Exceeds The Set Safety Threshold. If The Temperature Alarm Device Malfunctions And Cannot Detect Temperature Anomalies In A Timely And Accurate Manner, Measures Cannot Be Taken In A Timely Manner To Prevent Equipment From Becoming Dangerous Due To Overheating, Such As Catalyst Damage Or Equipment Combustion.
Explosion Proof Device Failure: Explosion Proof Devices (such As Explosion-proof Discs, Safety Valves, Etc.) Are Designed To Protect Equipment And Personnel From Abnormal Situations (such As High Pressure). If The Explosion-proof Device Fails And Dangerous Situations Occur Inside The Equipment, It May Not Be Able To Release Pressure In A Timely Manner Or Prevent The Spread Of Damage, Which May Lead To Serious Safety Accidents.
The Above Is A Common Fault And Cause Analysis Of Catalytic Combustion Equipment. Other Problems May Occur During Actual Operation, And Detailed Inspection And Analysis Are Needed According To Specific Situations In Order To Take Effective Maintenance Measures In A Timely Manner And Ensure The Normal Operation Of The Equipment.
