Skills and knowledge sharing of maintenance of high and low temperature circulation system

The high and low temperature circulation system is refrigerated and heated by the compressor, and the circulating medium is heated, cooled, and kept at a constant temperature, and is sent to the user equipment through the circulating pump
.


1.
Maintain daily work records, pressure and temperature of high and low temperature circulation systems, and records of liquid level and flow
.

2.
Keep the oil pipes clean.
The working principle of the high and low temperature circulation system is to rely on heat transfer to exert the cooling effect
.

In shell-and-tube and brazed-plate heat exchangers, the flow of coolant through the condenser tubes is impeded, significantly reducing the efficiency of heat transfer
.

Over time, corrosion can build up within the pipes, hindering the removal of the heat generated
.

Hence the planning and execution of regular quarterly or at least annual cleaning of the pipes
.

　　3.
The cooling rate of the equipment depends on the amount of refrigerant circulating through the compressor
.

The valve stem sometimes vibrates loose, causing refrigerant to leak
.

Compressor refrigerant leaks or moisture entering the system can also affect the cooling capacity of the chiller
.

Checking for leaks and maintaining proper refrigerant levels in the compressor pack will ensure performance
.

　　4.
Routine sensor calibration, microprocessor control inspection, electrical connection, wiring and safety inspection of switchgear,
etc.

In addition, the drive motor needs to be checked regularly to keep the high and low temperature circulation system working properly
.

The high and low temperature circulation system can take away the heat generated by the user's equipment.
It has three functions of cooling, constant temperature, and circulation.
It has a safety alarm device.
Learn how to maintain it to keep it running as long as possible
.