In the actual process of generating Dongxing, screw chiller row often occurs in a phenomenon, the outlet temperature is particularly high, in other words, the feeling is not the chiller cooling effect, in this case, we can not blindly to judge, but to one by one to cold water machine check.
The following is a maintenance process of the East Star, first of all, before the overhaul, we screw the cold water chiller working principle picture turned out, this is mainly to clear the order of maintenance. Heat transfer rate (endothermic)
1 first of all to check whether the condenser cooling water is enough, if the cooling water is less, the water inlet valve switch to open, or add cooling water.
2 check the friction parts of the compressor to see if there is a lubricating oil to maintain the compressor. The compressor is the core component of the whole cooling system.
3 compressor exhaust valve piece is complete, whether the piston ring leakage.
Heat transfer rate (heat)
4 the evaporator is running, check whether the cooling pipe leakage.
5 low temperature gas return pipe is a good insulation, insulation layer is damaged or aging.
6 the final judgment is whether the air inlet temperature is higher than usual too much lead to cooling after the temperature is still high. (simply inlet is usually 120 degrees is 180 degrees) after such a repair, that is because the cooling pipe has an interface for a long time, there is a slight air leakage, simple repair system, then back to normal.
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