Efficient permanent-magnet synchronous variable-frequency screw air compressor

Abstract

The invention discloses an efficient permanent-magnet synchronous variable-frequency screw air compressor. The efficient permanent-magnet synchronous variable-frequency screw air compressor comprises a screw air compressor main machine and a permanent-magnet motor. The permanent-magnet motor is installed on the upper surface of a first base plate through a lower installation plate. The first base plate is installed on one side of the upper surface of the base. The upper surface of the second base plate is provided with the screw air compressor main machine. The output end of the permanent-magnet motor is connected with the input end of the screw air compressor main machine through a transmission shaft. A frequency converter is installed on one side of the upper surface of the first base plate. The side, close to the permanent-magnet motor, of the base is provided with a draught fan. The air outlet end of the draught fan is connected with the inner portion of a heat energy recycling box. The upper surface of the side, close to the second base plate, of the first base plate is provided with a miniature draught fan. According to the efficient permanent-magnet synchronous variable-frequency screw air compressor, it is guaranteed that the permanent-magnet motor continuously conducts outputting at a certain power through the frequency converter, and the reliability of the screw air compressor is improved; and meanwhile, the whole screw air compressor is cooled through the draught fan and the miniature draught fan, heat energy is recycled, and the energy consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of air compressors, in particular to a high-efficiency permanent magnet synchronous frequency conversion screw air compressor. Background technique [0002] Screw air compressors come in pre-packaged configurations requiring a single power connection and compressed air connection, with a built-in cooling system that simplifies installation. Screw air compressors consistently provide high-quality compressed air for all walks of life with its advantages of high efficiency, high efficiency, maintenance-free, and reliable life. [0003] The output power of the driving motor of the current air compressor is generally transmitted through the belt, and the loss of power is large. At the same time, when the grid voltage is high, the driving motor will be damaged. When the air compressor dissipates heat, the heat is lost in vain, and the energy cannot be fully utilized. Contents of the invention [0004] The purp...

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Problems solved by technology

[0003] The output power of the driving motor of the current compressor is generally transmitted through the belt, and the loss of power is large. At the same time, when the grid voltage is high, it will cause damage to the driving motor.

When the air compressor dissipates heat, the heat is lost in vain, and the energy cannot be fully utilized.

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