Hangzhou Linuo Machinery Co., Ltd
Common Fault Analysis and Maintenance Guide for Cold Drying Machine
In industrial production, the refrigerant dryer, as the core equipment for the post-processing of compressed gas, its stable operation is directly related to the gas drying effect and production safety. However, various failures are inevitable during long-term operation. This article will analyze common problems of refrigerant dryers, and provide efficient solutions and maintenance suggestions to help enterprises achieve efficient equipment operation and cost optimization.
Refrigeration efficiency decrease: From "heart" failure to system optimization
The refrigeration system of the refrigerant dryer is its "heart". If the following problems occur, they should be checked in time:
1. Refrigerant leakage or insufficiency
Performance: Exhaust temperature increases.
Cause: Insufficient sealing of pipelines, valves, etc.
Solution: Regularly observe the refrigerant pressure gauge.
2. Condenser clogging or poor heat dissipation
Performance: Excessive condensation pressure, high-pressure alarm.
Cause: (Air cooling) Dust accumulation, excessively high ambient temperature, fan motor damage; (Water cooling) Insufficient water volume, excessively high water temperature, severe scale, water volume regulating valve not opened.
Solution: (Air cooling) Regularly clean the condenser fins, ensure good ventilation, and replace damaged fan motors; (Water cooling) Increase water volume, reduce water temperature, clean scale, replace or repair the water volume regulating valve.
3. Compressor failure
Performance: Abnormal noise, excessive current.
Cause: Compressor oil shortage, a small amount of liquid in the return gas, loose compressor fixing, aging lubricating oil, motor wear.
Solution: Change oil, adjust the hot gas expansion valve, tighten the compressor.
Abnormal drainage: Beware of the "invisible killer" condensate
If the condensate produced during the operation of the refrigerant dryer cannot be effectively discharged, it will lead to increased system humidity and even secondary pollution. Common problems include:
1. Drainage pipe blockage
Performance: Reduced drainage, water accumulation inside the equipment
Cause: Sediment accumulation, pipe bending, pipe air blockage.
Solution: Use a self-cleaning drain valve to improve pipe air blockage.
2. Automatic drainer failure
Performance: Abnormal drainage interval or no drainage at all.
Cause: Float sticking or solenoid valve damage.
Solution: Clean the float or replace the solenoid valve.
Pressure abnormality: Full-chain control from source to end
Pressure fluctuations directly affect the drying effect. The following aspects should be paid attention to:
1. Inlet pressure is too low
Performance: Dew point temperature is too high, and the backend equipment alarms.
Cause: Unstable air compressor output, excessive pipeline resistance, excessive gas consumption at the backend.
Solution : Reduce the gas consumption of downstream equipment or increase the air compressor and drying equipment.
2. Filter blockage
Performance: Abnormal differential pressure gauge reading, reduced gas flow.
Cause: Oil or particle accumulation.
Solution: Replace the filter element and set a differential pressure sensor to achieve automatic alarm.
Maintenance tips: The golden rule for extending equipment life
Regular maintenance: Clean the condenser every 3 months and replace the filter element every year.
Environmental management: Ensure good ventilation in the installation area and avoid high temperature and humidity environments.
Professional support: Choose a supplier with customized service capabilities to design exclusive solutions for special working conditions (such as high dust, low temperature environments, etc.).
Conclusion: The stable operation of the refrigerant dryer depends on scientific fault diagnosis and forward-looking maintenance. As a deep cultivator in the field of gas drying and purification, we not only provide efficient and reliable equipment, but also provide customers with full life cycle management services. If you need customized solutions or technical support, please feel free to contact us at 0571-88684007, let professionals escort your production!
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