Normal operation of battery pack PACK liquid cooling test device

The shell of the shell and tube condenser of the battery pack PACK liquid cooling test device is normally the upper half is relatively hot and the lower half is warm, and under abnormal conditions, the entire shell is not too hot, and its original refrigerant dose is not enough
.
The entire housing is hot, due to insufficient cooling water or poor heat dissipation (fouling in the water pipe).

Under normal circumstances, the casing surface is very hot, the reason is that the cooling water volume is too small or the heat dissipation effect is poor; Another reason is that the outer surface of the entire casing is not too hot, and the reason is that the refrigerant dose is insufficient
.
Under normal circumstances, the suction pipe of the battery pack PACK liquid cooling test device feels cool to the touch by hand and has dew due to poor heat dissipation of the condenser, high condensation temperature or excessive
refrigerant charge.
Under normal circumstances, the liquid tube is warm
.
Under normal circumstances, the liquid tube is relatively hot
.
The reasons for this are poor condenser heat dissipation, high condensing temperature or excessive
refrigerant flow.
Battery pack PACK liquid cooling test device suction tube Under normal circumstances, the suction tube feels cool to the touch of the hand and has dew
.
Under abnormal circumstances, one is that the suction tube is cold and there is too much dew, resulting in a large area of condensation
in the casing.
The reason is that the refrigerant flow is too large, the liquid cannot be fully vaporized in the evaporator, and there is a liquid reflux phenomenon
.
Battery pack PACK liquid cooling test device thermostatic expansion valve surface temperature (including electronic expansion valve) Under normal circumstances, the lower half of the expansion valve body is very cool, and there is dew, and the refrigerant flow sound is dull
.
Under abnormal circumstances, one is that the valve body is relatively cold, there is more dew on the surface, and even frost, and the flow sound of the refrigerant is loud (gas flow).

The reason is that the filter screen is blocked, or the refrigerant leaks in the power box, and the valve hole does not close
.
Under normal circumstances, the outer surface of the evaporator of the battery pack PACK liquid cooling test device is very cold, its condensate droplets are constantly dripping, the inlet and outlet air temperature is large, abnormal situation, the surface of the evaporator is not too cool, there is not much dew, or no condensation, you can hear the refrigerant flow sound is very loud, and the temperature difference between the inlet and outlet air is small
.
Therefore, the user needs to regularly maintain the battery pack PACK liquid cooling test device, regularly check whether the refrigerant of the equipment has leakage, and can be judged
according to the main parameters of the information displayed in the high pressure and low pressure table of the control panel directly in front of the server.