Refrigeration equipment as a large mechanical equipment, the need for regular maintenance checks, good maintenance work. Refrigeration equipment maintenance requirements are mainly four points:
1, neat
Tools, workpieces, accessories placed neatly, equipment parts and safety guards are complete, lines, pipelines complete.
2, clean
Equipment inside and outside the clean, no black oil, no bruises, no parts of the "running, bubbling, dripping, leaking" phenomenon, clean sweeping garbage.
3, lubrication
Ammonia refrigeration compressor refueling on time, oil change, oil quality meets the requirements. Various types of valves coated with lubricating oil, play a seal, smooth opening and closing effect.
4, safety
The implementation of manned machine and shift handover system, familiar with the structure of the equipment, comply with the operation and maintenance regulations, the rational use of maintenance, monitoring of abnormalities, no accidents.
Two, how to maintain refrigeration equipment
Refrigeration equipment after a period of time, if you do not pay attention to the maintenance and maintenance, more or less some problems, such as refrigeration efficiency is slow, the temperature does not go down, etc., so pay attention to do a good job of refrigeration equipment maintenance, general refrigeration maintenance is based on the hours of work to develop the maintenance and maintenance methods, usually 500-700 hours. Maintenance and maintenance, maintenance is mainly:
1, replacement of lubricating oil
Refrigeration units in the long-term use of lubricating oil, lubricant oil quality deterioration, oil impurities and moisture within the increase, so regular observation and inspection of oil quality. Once the problem is found should be replaced in a timely manner, the replacement of the lubricant grade must comply with the technical information.
2, maintenance filter drier
Since water and refrigerant are immiscible, if the system contains water, it will greatly affect the operating efficiency of the unit, so it is very important to keep the system dry, which requires normal use of the filter drier, filter drier cartridge needs to be replaced on a regular basis.
3, regular calibration of the safety valve
Refrigeration equipment, condenser and evaporator are pressure vessels, require the installation of safety valves to prevent high pressure may cause harm to the human body, in order to be safe, the safety valve needs to be regularly calibrated whether the normal pressure relief.
4, cleaning the condenser and evaporator
Generally due to the cooling water is an open loop circuit, the use of tap water through the cooling tower recycling, so when the use of cooling water of poor water quality, the cooling water pipe at least once a year to clean, to remove the tube of scale and other dirt, you can use a special cleaning gun to clean the tubes or detergent cycle flushing.
5, charge refrigerant
Improper use or after maintenance, the refrigerant of the refrigeration equipment may have a certain amount of leakage, the need to re-add refrigerant, charge refrigerant must pay attention to the unit to use the refrigerant grade.