Gas compression device of multistage gas compressor

Abstract

A gas compression device of a multistage gas compressor is characterized by comprising a compressor case, multiple gas cylinders and a driving mechanism, wherein an installing face is arranged on the surface of the compressor case, installing holes are formed in the installing face, an installing cavity is formed inside the compressor case, the gas cylinders are arranged on the compressor case and are provided with gas inlets and gas outlets, gas compression cavities are formed in the gas cylinders, the gas inlets and the gas outlets can be communicated with the gas compression cavities, the gas cylinders are connected and communicated with through cooling pipes, and compression pistons are further arranged in the gas cylinders. The driving mechanism is arranged in the installing cavity of the compressor case and comprises a crank shaft and connecting rod mechanisms, wherein one end of the crank shaft is connected with a power output shaft of a motor, the connecting rod mechanisms are arranged on a crank throw of the crank shaft, connecting rods of the connecting rod mechanisms are identical to the gas cylinders in number and correspond to the gas cylinders in a one-to-one mode, one end of each connecting rod mechanism is in driving connection with the crank shaft, and the other end of each connecting rod mechanism is in driving connection with the corresponding compression piston through the corresponding installing hole formed in the compressor case. The problems of higher temperature, poor motion stability, more severe abrasion and short service life in the operating process of the gas compression device in the multistage gas compressor are solved.

Description

Technical field [0001] The invention relates to a gas compression device, in particular to a gas compression device of a multi-stage gas compressor. Background technique [0002] A gas compressor is a power device that converts mechanical energy into gas pressure energy. It is often used to provide gas power for pneumatic tools, and it is also often used to compress gases such as oxygen and natural gas. Current gas compressors mainly compress gas through cylinders. In order to ensure higher gas pressure, gas compressors often use multi-stage compression to achieve the purpose of boosting. Multi-stage compression requires multiple piston cylinders to compress the gas, and the pistons of the piston cylinders are driven by a crankshaft arranged in the casing of the gas compressor. As the pressure of the gas becomes higher and higher, the gas pressure reaction force received by the piston becomes stronger and stronger. This reaction force will have a greater impact on the movement o...

AI Technical Summary

Problems solved by technology

As the pressure of the gas becomes higher and higher, the pressure reaction force received by the piston becomes stronger and stronger, and this reaction force will have a greater impact on the movement of the drive device of the gas compressor, which will intensify its wear and tear.

For example, the patent application No. 201410245774.0 is a patent named multi-stage compressor. This patent discloses a multi-stage compressor. The multi-stage compressor drives multiple multi-stage eccentric parts by the crankshaft to complete the multi-stage compression of gas. The wear of the compression device is relatively high, and the service life of the entire gas compressor is short

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