A semi-hermetic high temperature centrifugal compressor motor cooling system

Abstract

This utility model discloses a semi-hermetic high-temperature centrifugal compressor motor cooling system, which includes a semi-hermetic high-temperature centrifugal compressor, a subcooler, a condenser, a cooling medium container, and a cooling supply device. The heat exchange pipes are arranged in the form of spiral coils inside the subcooler, and the flow direction of the cooling medium in the heat exchange pipes is countercurrent to the flow direction of the refrigerant in the subcooler. The refrigerant in the condenser enters the subcooler through the refrigerant liquid circuit pipe and exchanges heat with the cooling medium before supplying it to the compressor motor to dissipate heat. The cooling medium in the cooling medium container exchanges heat with the refrigerant in the subcooler through the heat exchange pipes, enters the cooling supply device for cooling, and then returns to the cooling medium container after cooling. This utility model improves the cooling effect of the compressor motor of the semi-hermetic high-temperature centrifugal compressor, achieves efficient heat dissipation, significantly improves its operational stability and reliability under high temperature, high load, and complex environments, reduces operating load, and reduces usage and maintenance costs.

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