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2. Regularly drying the filter to replace the dry filter is an important part to ensure the normal circulation of the refrigerant. Since water and refrigerant are incompatible with each other, if the system contains moisture, it will greatly affect the operating efficiency of the unit. Therefore, it is very important to keep the internal drying of the system. The filter element inside the drying filter must be regular.
3. Regular inspection of screw compressors Screw compressors are very critical components in the unit. The quality of the compressor directly affects the stability of the unit. If the compressor fails and repairs, the cost is relatively high, and the installation accuracy of the screw compressor is high, and it is necessary to find a qualified professional engineer to test.
4. Regularly change the lubricating oil unit. After long-term use, the oil quality of the lubricating oil will deteriorate, and the impurities and moisture inside the oil will increase. Therefore, it is necessary to observe and check the oil quality regularly. Once the problem is found, it should be replaced in time. The replacement lubricant grade must comply with the technical data.
5. Regularly clean and sterilize the condenser and evaporator. The cooling water of the water-cooled condenser is an open loop. The tap water generally used is recycled through the cooling tower, which is easily decomposed and deposited on the cooling water pipe to form scale. Affect heat transfer. Excessive fouling also reduces the flow cross section of the cooling water, reduces the amount of water, and increases the condensing pressure. Therefore, when the water quality of the cooling water used is poor, the cooling water pipe is cleaned at least once a year to remove scale and other dirt in the pipe.
Maintenance method of industrial chiller
Chiller: It is a water cooling device. The chiller is a cooling water device that provides constant temperature, constant current and constant pressure. The working principle of the chiller is to inject a certain amount of water into the water tank of the machine first, and then cool the water through the chiller refrigeration system, and then the low-temperature cooling water is sent to the equipment to be cooled by the water pump, and the chilled water of the chiller takes the heat away and the temperature rises. The high reflux is returned to the water tank to achieve the cooling effect. The cooling water temperature can be adjusted automatically according to requirements, and long-term use can save water. Therefore, the chiller is a standard energy-saving device. The chiller maintenance method: 1. Regularly check the safety valve. The condenser and evaporator on the screw chiller belong to the pressure vessel. According to the regulations, the safety valve should be installed on the high pressure end of the unit, that is, the condenser body. In an abnormal working environment, the safety valve can automatically relieve pressure to prevent high pressure damage to the human body.