The maintenance of cold storage equipment and cold storage refrigeration system during operation is as follows:
1. During the initial operation of the cold storage equipment: always observe the oil level and oil return condition of the compressor and the oil If the oil is found to be dirty or the oil level has dropped, it should be resolved promptly to avoid poor lubrication.
2. For air-cooled units of cold storage equipment: the air-cooler must be cleaned frequently to maintain good heat exchange performance.
For cold storage water-cooling units: Check the turbidity of the cooling water frequently. If the cooling water is too dirty, replace it. Check the water supply system for any problems such as running, bubbling, dripping or leaking. Whether the water pump is working normally, whether the valve switch is effective, whether the cooling tower and fan are normal. For cold storage air-conditioning units: Check the condenser frequently for scaling problems and remove scale in time.
3. For air-cooled evaporators in cold storage equipment: the defrosting situation should be checked frequently to see if the defrosting is timely and effective, which will affect the refrigeration effect and cause liquid back into the refrigeration system.
4. Frequently observe the operating status of the heart compressor of the cold storage equipment and check its exhaust temperature. When operating between seasons, pay special attention to the operating status of the system and adjust the system liquid supply volume and condensing temperature in a timely manner.
5. Listen carefully to the sound of the compressor, cooling tower, water pump or condenser fan operating, deal with any abnormalities promptly, and check the vibration of the compressor, exhaust pipe and feet.
6. Maintenance of the compressor: The internal cleanliness of the system is poor in the initial stage. The refrigeration oil and drying filter must be replaced after 30 days of operation, and again after half a year of operation (depending on the actual situation). Certainly). For systems with higher cleanliness, the refrigeration oil and drying filter should be replaced after half a year of operation, depending on the situation.
The main products of Dongguan Najin Machinery Co., Ltd. are chillers, industrial chillers, air-cooled chillers, water-cooled chillers, etc.!