External and Internal Cleaning
Regularly wipe the evaporator shell with a clean soft cloth to remove dust, dirt, and debris that can damage heat dissipation efficiency and reduce operating performance. For stubborn stains, use mild detergent with a damp cloth, and strictly avoid moisture entering internal electrical components. Internal cleaning is equally critical. Scale, oil stains, and impurity accumulation inside the evaporator degrade heat transfer performance and weaken the cooling or heating effect. For water-cooled evaporators, regularly clean the cooling water pipeline using chemical descaling by injecting specialized descaling agent into the pipeline according to specified ratios, or physical cleaning using high-pressure water flushing or pipeline brush scrubbing. For air-cooled evaporators, regularly clean the fan and heat dissipation fins using compressed air or a soft brush to keep them unobstructed.
Connection Component and Electrical Inspection
Regularly check all pipeline interfaces and wire joints to ensure tight connection without looseness or leakage. Pipeline leakage causes loss of refrigerant or working medium and affects normal operation. Replace damaged seals promptly. Check wires, plugs, controllers, and other electrical components for aging or damage. Replace broken or aged wires immediately, and clean plugs and sockets if contact is poor. Verify that the controller functions normally and all parameter settings are correct. Regularly check the accuracy and reliability of temperature sensors, pressure sensors, and other instruments using professional testing equipment.
Lubrication and Anti-Rust Treatment
For moving parts such as motor bearings and fan shafts, apply appropriate lubricant at specified intervals according to the equipment instruction manual. Proper lubrication reduces friction and wear, extending the service life of moving parts. Apply anti-rust oil or anti-corrosion coating to metal components on a regular basis, especially for evaporators used in humid or corrosive environments, to prevent oxidation and corrosion of metal components.
Operation Monitoring and Record Keeping
Closely monitor real-time operating parameters including temperature, pressure, and flow rate during operation. Abnormal changes in these parameters can indicate potential internal faults and should be handled promptly. Establish a complete operation log to record operating time, start and stop time, all operating parameters, and maintenance records. These records help analyze the evaporator operating status, predict potential faults, and provide reference for follow-up maintenance work.
Shutdown Maintenance Procedures
For short-term shutdown, stop the equipment according to normal operating procedures, close relevant valves and power supply, and perform simple cleaning and inspection. For long-term shutdown, discharge the refrigerant or working medium and perform necessary drying treatment to prevent internal component rust and corrosion. Perform a full cleaning and maintenance, and cover the equipment with a protective cover to prevent dust and debris from entering.
