Novel vacuum compression system

Abstract

The invention is mainly applied to the field of vacuum equipment and particularly relates to a novel vacuum compression system. The novel vacuum compression system comprises a motor. The motor is a double-shaft extension motor. One output end of the motor is connected with a vacuum pump A through a speed reducer A, and the other output end of the motor is connected with a vacuum pump B through a speed reducer B. The vacuum pump A and the vacuum pump B are both double-suction vacuum pumps. Air inlets of the vacuum pump A and the vacuum pump B communicate with air inlet pipes correspondingly. The two air inlet pipes communicate with a main air inlet of a vacuum system through an air inlet T-joint. Through the novel vacuum compression system, a vacuum unit can be made to operate at an optimum performance working point in a matched mode, and the technical requirements for the large air pumping amount are met. A driver and the pumps can be controlled through clutches. The air pumping amount can be increased when the two pumps operate in parallel. The compression ratio can be increased, and the air discharge pressure can be increased.

Description

technical field [0001] The invention relates to a novel vacuum compression system, which is mainly used in the field of vacuum equipment. Background technique [0002] With the continuous development of aerospace, petroleum, chemical industry, coal mine, papermaking and other industries, the requirements for the performance, efficiency, operation reliability and transportation safety of vacuum equipment are constantly improving, especially for large pumping capacity, high vacuum, high Existing single liquid ring vacuum pumps or compressors cannot meet the technological conditions of exhaust pressure. This is because: [0003] 1. The liquid ring pump is limited by the linear speed of impeller rotation, so it cannot increase the volume specification of the pump without limit. Efficiency is reduced, and at the same time, the overall size and unit weight of the equipment will increase geometrically, resulting in difficulties in manufacturing, transportation, installation and m...

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Problems solved by technology

[0003] 1. The liquid ring pump is limited by the linear speed of impeller rotation, so it cannot increase the volume specification of the pump without limit. Efficiency is reduced, and at the same time, the overall size and unit weight of the equipment will increase geometrically, resulting in difficulties in manufacturing, transportation, installation and maintenance

[0004] 2. At present, most high-discharge compressors use single-shaft, double-impeller, and two-stage compression. The structure is complex, the processing and manufacturing precision is high, and the pumping volume is small, which cannot meet the air volume requirements.

For a compressor with a large pumping capacity, the only way to increase the specification can be used, but the flow rate drops sharply when the exhaust pressure is high, and it cannot adapt to the variable flow rate and variable pressure conditions

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