The plant is centrally used for the maintenance of key components of cold small chillers

Factory central cooling small chiller compressor, is a very critical component of the unit, compressor is directly related to the stability of the unit.
1, replacement of lubricants Refrigeration unit in the long-term use, the oil quality of the oil is poor, the oil internal impurities and moisture increased, so regular observation and inspection of the oil.
the problem should be replaced in time, the replacement of the lubricant grade needs to comply with technical information.
2, replace the drying filter Drying filter is an important part to ensure the normal circulation of refrigerant.
Because water and refrigerant are insoluble, if the system contains moisture, it will greatly affect the operating efficiency of the unit, so it is very important to keep the internal drying system, the filter inside the drying filter needs to be replaced regularly.
3, the safety valve verification condenser and evaporator on the chiller are pressure vessels, according to the provisions, to install the safety valve on the unit's high-pressure end, that is, the condenser body, once the unit is in an abnormal operating environment, the safety valve can automatically discharge pressure to prevent high pressure may cause harm to the human body.
the safety valve is very important for the safety of the whole unit.
water cooling water of the water-cooled condenser, which is used by the condenser and evaporator, is generally recycled by the cooling tower because it is an open cycle circuit.
when the calcium salt and magnesium salt content in the water is large, it is easy to decompose and deposit on the cooling pipe to form scale, affecting heat transmission.
scale will also make the flow cross-section of cooling water shrink, water volume reduced, condensation pressure increased.
, when the water quality of the cooling water used is poor, wash the cooling pipe at least once a year to remove scale and other dirt from the pipe.
cleaning condenser pipes are usually carried out in two ways: (1) cleaning the pipes with a special pipe-clearing gun.
(2) circulate with a special cleaning agent, or fill it in cooling water and replace the solution until it has been washed.
5, refrigerant filling If there is no other special reason, the general unit will not produce a large number of leaks.
if a certain amount of refrigerant leaks due to improper use or after repair. Refrigerant needs to be re-added.
the refrigerant needs to pay attention to the number of refrigerant used by the unit.