A circulating centrifugal gas compressor

Abstract

The invention provides a circulation centrifugal gas compressor. A centrifugal compression mechanism comprises a first body and a turbine mechanism. A chamber is arranged in the first body. The turbine mechanism is arranged in the chamber. A fluid conveying mechanism comprises a second body and a three-way valve. An input passageway, a backflow passageway and an output passageway are arranged in the second body. The three-way valve is arranged in the second body. An input port of the three-way valve is communicated with an outlet of the chamber through the input passageway. A first output port of the three-way valve is communicated with an inlet of the chamber through the backflow passageway. A second output port of the three-way valve is communicated with the output passageway. A control device comprises a controller and a pressure sensor. The controller is connected with the pressure sensor and the three-way valve. The controller controls the input port of the three-way valve to be communicated with the first output port or the second output port according to the gas pressure value detected by the pressure sensor. In the circulation centrifugal gas compressor, gas is compressed through the turbine mechanism in a centrifugal mode, force is exerted so that stability and balance of gas flow pulses can be ensured, and therefore vibration damage to the compressor is reduced, and the service life of all parts is ensured.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a circulating centrifugal gas compressor. Background technique [0002] A compressor is a power device that uses an internal combustion engine or an electric motor to compress atmospheric pressure gas into high-pressure gas and has airflow energy. In the natural gas transmission and distribution system, the compressor is used to compress the natural gas, increase the pressure or delivery capacity of the natural gas, and often use the compressor to transport the compressed gas to replace the impurities in the pipeline when cleaning the pipeline, so as not to block the pipeline. Therefore, the compressor is often compared to the heart of pipeline transportation. At present, the reciprocating compressor is the most used one. The reciprocating compressor uses the movement of the piston to compress the gas. Its disadvantages are complex structure, large volume, and heavy maintena...

AI Technical Summary

Problems solved by technology

At present, the reciprocating compressor is the most used one. The reciprocating compressor uses the movement of the piston to compress the gas. The disadvantages of the reciprocating compressor are complex structure, large volume, and heavy maintenance workload. Anti-vibration measures, in addition, there are disadvantages such as easy wear and tear of suction and exhaust valves, frequent replacement of parts, etc.

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