In life, when it comes to water-cooled screw chillers, perhaps everyone does not know what it is. But in fact, water-cooled screw chillers are used in many machinery and equipment on the market now. So, how to maintain the specific water-cooled screw chiller? Now, let me introduce it for everyone.
The cooling water of the water-cooled condenser is an open circulation loop, and the tap water generally used is recycled through the cooling tower. When the content of calcium salt and magnesium salt in the water is large, they are easily decomposed and deposited on the cooling water pipe to form scale, which affects heat transfer. Excessive scaling will also reduce the flow cross-section of the cooling water, reduce the water volume, and increase the condensation pressure. Therefore, when the quality of the cooling water used is poor, clean the cooling water pipe at least once a year to remove the scale and other dirt in the pipe.
Dry filter is an important part to ensure the normal circulation of refrigerant. Because water and refrigerant are incompatible with each other, if the system contains water, it will greatly affect the operating efficiency of the unit. Therefore, it is very important to keep the system dry. The filter element inside the dryer filter must be replaced regularly.
The condenser and evaporator on the screw chiller are pressure vessels. According to regulations, a safety valve should be installed on the high-pressure end of the unit, that is, the condenser body. Once the unit is in an abnormal working environment, the safety valve can automatically vent. To prevent possible damage to the human body caused by high pressure. Therefore, the regular calibration of the safety valve is very important for the safety of the entire unit.
After long-term use of the unit, the oil quality of the lubricating oil deteriorates, and the impurities and moisture inside the oil increase, so the oil quality should be regularly observed and checked. Once a problem is found, it should be replaced in time, and the lubricant brand to be replaced must conform to the technical data.