High-speed direct-drive type double-suction centrifugal steam compressor

Abstract

The invention relates to the field of steam compressors, in particular to a high-speed direct-drive type double-suction centrifugal steam compressor. According to the steam compressor, direct drive isperformed by adopting a high-speed permanent magnet motor, a speed increaser is omitted, so that a power transmission structure of a centrifugal steam compressor is simplified, the transmission stability is enhanced, potential fault points are reduced, the power consumption of the speed increaser can be saved, and the operation efficiency of the compressor is improved; impellers are arranged at the two ends of the motor correspondingly, so that the axial force of a rotor is balanced, and the utilization rate of the motor is improved; drive is performed by a water-cooled type high-speed permanent magnet variable-frequency motor, so that the heat dissipation problem of the high-speed rotor is solved, the steam compressor is suitable for variable speed operation, during operating at different speeds, the operation efficiency of the motor is almost constant and all in a high efficiency area; a lubricating oil system is composed of an oil tank, main and auxiliary oil pumps, an oil cooler,an oil filter, a overflow valve, an electric heater and a one-way valve, the lubricating oil system and a lubricating oil tube are integrally assembled on a public seat, so that the structure is compact, the occupied area is small, and the occupied space of a factory building is effectively saved.

Description

technical field [0001] The invention relates to the field of steam compressors, in particular to a high-speed direct-drive double-suction centrifugal steam compressor. Background technique [0002] The steam compressor is the key equipment for the heat recovery system to increase the steam temperature and pressure by compressing the steam generated. Widely used in vapor compression recycling systems in food processing, chemical industry, paper industry, saltworks, pharmaceuticals and other fields. Among them, the steam compressor driven by a traditional low-speed motor needs to use a speed-increasing box to increase the speed in order to achieve a high speed. This driving method leads to an increase in overall energy consumption; the components are cumbersome, the number of failure points increases, the structure is complex, and the volume is large; reliability and Poor maintainability; short bearing life, high vibration and noise; only small-scale speed regulation, poor ad...

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Problems solved by technology

[0003] The invention provides a high-speed direct-drive double-suction centrifugal steam compressor for the disadvantages of low operating efficiency, many fault points, and a large floor area of ​​the gear speed-increasing centrifugal steam compressor in the prior art.

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