What suggestions do refrigerated dryer manufacturers have for equipment maintenance and upkeep?
As an important air treatment equipment in industry, the maintenance and upkeep of refrigerated dryers (freeze dryers) are crucial for ensuring stable operation, extending service life, and improving production efficiency. Here are some suggestions from refrigerated dryer manufacturers regarding equipment maintenance and upkeep:
1、 Regular cleaning
External cleaning: Regularly use a clean and soft cloth to wipe the outside of the refrigerated dryer, remove dust and dirt, and avoid dust accumulation that affects the heat dissipation effect.
Internal cleaning: Clean the interior of the refrigerated dryer every three to six months, including the condenser, evaporator, vacuum pump, and other components. During the cleaning process, the power should be turned off and all gases and moisture should be expelled to ensure safety. Be particularly careful not to wet the control panel and electrical wiring.
2、 System inspection and maintenance
Vacuum system:
Regularly check the oil quality of the vacuum pump and replace or add oil as needed.
Check if there is any leakage in the vacuum pipeline and repair it in a timely manner. Leakage not only affects the vacuum level, but also wastes energy.
Check the vacuum gauge annually to ensure its accuracy and recalibrate as needed.
Refrigeration system:
Regularly check the various parameters of the refrigeration system, such as refrigeration temperature, refrigerant pressure, etc., to ensure the normal operation of the system.
If the equipment uses a refrigeration system with a compressor, it should be maintained at least once a year, including replacing or cleaning the air filter, lubricating oil, and condenser.
Electrical system:
Regularly check various parameters of the electrical system, such as voltage, current, insulation resistance, etc., to ensure that electrical components are not aging or damaged.
Pay attention to whether the power supply voltage of the equipment is normal, and avoid damage to the equipment caused by high or low voltage.
Cold dryer manufacturer

3、 Replacement of vulnerable parts
Cold dryer manufacturers regularly inspect and replace vulnerable parts such as seals, filters, vacuum pump oil, etc. The wear or failure of these components will directly affect the performance and efficiency of the equipment.
When replacing vulnerable parts, choose accessories that match the original and replace them according to the manufacturer's recommendations.
4、 Daily maintenance and observation
Observation record:
Observe and record instrument values for each shift, such as the pressure difference between compressed air inlet and outlet, evaporation pressure gauge, high-pressure gauge, etc., to ensure that all parameters are within the normal range.
Regularly observe the inlet temperature of the cooling water system and compressed air system, as well as the operating current and voltage of the compressor.
Drainage and sewage discharge:
Regularly check whether the drainage system is unobstructed, clean the float drain and sewage pipe in a timely manner, and prevent water accumulation.
For air-cooled condensers, sufficient space should be ensured for ventilation and heat dissipation around them, and compressed air should be regularly used to blow away dust on the heat dissipation fins.
5、 Seasonal maintenance and upkeep
In addition to daily maintenance, the refrigerated dryer also requires seasonal maintenance. When changing seasons, special attention should be paid to the heat dissipation and insulation performance of the equipment to ensure stable operation in different seasons.
6、 Training and guidance
Manufacturers should regularly provide training on equipment maintenance and upkeep to operators, enabling them to master the correct operating methods and maintenance knowledge.
Provide detailed equipment maintenance manuals and operation guides for easy access and learning by operators at any time.
In summary, the maintenance and upkeep of a refrigerated dryer is a comprehensive task that requires joint efforts from multiple aspects, including regular cleaning, system inspection and maintenance, replacement of vulnerable parts, daily maintenance and observation, as well as seasonal maintenance and upkeep. Only in this way can we ensure the long-term stable operation and high energy efficiency of the refrigerated dryer.

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