Cooling system device for magnetic axial bearing

Abstract

The invention discloses a cooling system device for a magnetic axial bearing. A rotating ring is rotatably arranged in an annular seat, and a plurality of snifting valves for cooling the magnetic bearing are arranged on the rotating ring along the circumference; a rotating mechanism is arranged on a mounting base, an air supply assembly used for pumping air into the rotating ring is further arranged on the mounting base, and a condensation assembly used for cooling the pumped air is attached to the air supply assembly; when a power device works, the air supply assembly and the condensation assembly are driven to work at the same time, wherein the air supply assembly continuously pumps air flow to an extending part of the rotating ring, and the fed air flow is sprayed to the magnetic bearing through the snifting valves distributed circumferentially; the condensation assembly is used for cooling the air flow passing through the air supply assembly, so that the air flow sprayed out of the snifting valves has a low initial temperature, and heat exchange with hot air around the magnetic bearing is achieved; and in addition, the air supply assembly drives a cargo transfer mechanism to act so as to drive the whole rotating ring to rotate.

Description

Technical field [0001] The present invention relates to a mechanical cooling system, specifically a cooling system device for a magnetic axial bearing. Background technique [0002] Magnetic bearings also referred to as electromagnetic bearing or magnetic levitation bearing, which is the utilization of magnetic force to suspend the rotating shaft in a space-specific position, achieving the effect of conventional bearing, which avoids direct contact wear of the rotor and the bearing. [0003] Magnetic bearings are generally mounted in a sealed housing, poor ventilation and heat dissipation conditions, and the system temperature is too high to cause thermal expansion of the rotor member, generate thermal stress or change the gap between the magnetic bearing strats and the rotor, thereby reducing the reliability of the system. [0004] At present, existing magnetic bearing cooling is mostly cooled by medium, and the medium cooling increases the adhesion of the shaft, thereby increas...

AI Technical Summary

Problems solved by technology

[0003] Magnetic bearings are generally installed in sealed housings, with poor ventilation and heat dissipation conditions. Excessive system temperature will cause thermal expansion of rotor components, generate thermal stress, or change the gap between the magnetic bearing stator and rotor, thereby reducing system reliability.

[0004] At present, most of the existing magnetic bearing cooling adopts medium cooling, which will increase the viscosity of the shaft, thereby increasing friction, and the loss of the medium is large, so it is necessary to develop a non-contact cooling system to overcome the above technical problems

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