1、 Daily cleaning and inspection
1. External cleaning: Wipe the outer shell with a damp cloth every week, and stubborn stains can be treated with a mild cleaning agent.
2. Internal cleaning: Clean the interior every 1-3 months to avoid residual media affecting temperature control accuracy.
3. Condenser maintenance: Regularly use a soft bristled brush to remove dust from the cooling coil and ensure good ventilation (for air-cooled systems, check the fan direction).
2、 Key component maintenance
1. Medium replacement: Replace the circulating medium every 3-6 months to prevent deterioration, corrosion, or blockage.
2. Electrical inspection: Ensure good power grounding and prohibit unauthorized modification of protective device settings.
3. Explosion proof performance verification: Regularly check the sealing of explosion-proof components to avoid the risk of leakage in flammable environments.
3、 Fault handling and long-term shutdown
1. Alarm handling: When there is a malfunction, press the stop button first to troubleshoot and prohibit forced restart.
2. Winter shutdown: If not in use for a long time, it is necessary to drain the liquid in the system to prevent pipeline freezing and cracking.
3. Professional maintenance: If the cooling capacity continues to decrease or the high-pressure switch frequently alarms, it is necessary to contact technical personnel to clean the condenser or conduct maintenance.
4、 Operational safety regulations
1. Avoid direct contact with high and low temperature surfaces and wear protective gloves.
2. Control the rate of temperature change to avoid severe temperature damage to equipment.
3. During liquid nitrogen cooling, it is necessary to prevent freezing damage and keep the operating area clean and unobstructed.
The above measures can effectively extend the service life of equipment and ensure operational safety.