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Oil pressure and air pressure monitoring device and method for diaphragm compressor

A diaphragm compressor and air pressure monitoring technology, applied in the field of compressors, can solve problems affecting cylinder strength, potential safety hazards, leakage, etc., and achieve the effect of improving sensitivity

Active Publication Date: 2019-10-25
陕西康谱智慧科技有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the high pressure ratio and wide pressure range that the diaphragm compressor can operate, the exhaust pressure can reach up to 300MPa. Monitoring the air pressure in the head not only affects the strength of the cylinder, but also may cause leakage and bring safety hazards

Method used

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  • Oil pressure and air pressure monitoring device and method for diaphragm compressor
  • Oil pressure and air pressure monitoring device and method for diaphragm compressor
  • Oil pressure and air pressure monitoring device and method for diaphragm compressor

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Embodiment Construction

[0042] Hereinafter, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. According to these detailed descriptions, those skilled in the art can clearly understand the present application and can implement the present application. Without departing from the principle of the present application, the features in different embodiments can be combined to obtain new implementations, or some features in certain embodiments can be replaced to obtain other preferred implementations.

[0043] Strain gauges are components used to measure strain, which are composed of sensitive grids and the like. The working principle of the resistance strain gauge is based on the strain effect, that is, when the conductor or semiconductor material is mechanically deformed under the action of an external force, its resistance value changes accordingly. This phenomenon is called "strain effect".

[0044] A quadrilateral measuring bridge c...

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Abstract

The invention belongs to the technical field of compressors, and particularly relates to an oil pressure and air pressure monitoring device and method for a diaphragm compressor. Due to the fact thatthe diaphragm compressor is high in operational pressure ratio and large in pressure range, and the exhaust pressure can reach 300 MPa to the maximum extent; and if the method of machining pressure measuring holes in a cylinder body, not only is the cylinder strength affected, but also leakage can be caused, and potential safety hazards are brought. The oil pressure and air pressure monitoring device for the diaphragm compressor comprises a cylinder and a strain gage circuit, and the cylinder comprises a cylinder head; and the strain gage circuit comprises a strain gage assembly and a bridge circuit which are mutually connected, and the strain gage assembly is arranged on the cylinder head. The strain gage assembly is arranged on the cylinder head and connected with the bridge circuit, sothat the sensitivity of the strain gage assembly is improved, and the input and the output are in a linear relationship. The monitoring device is safe and reliable and has no damage to the diaphragm compressor, and especially under the high-pressure working condition, the hydraulic pressure in the oil-side cylinder head and the air pressure in the air-side cylinder head of the diaphragm compressorcan be monitored.

Description

technical field [0001] The application belongs to the technical field of compressors, in particular to a device and method for monitoring oil pressure and air pressure of a diaphragm compressor. Background technique [0002] Diaphragm compressor is a special equipment for gas compression with no leakage in the compression chamber. Because of its good sealing performance, wide pressure range and large compression ratio, it is widely used in hydrogen refueling stations and petrochemical fields to compress and transport various high-purity gases, precious and rare gases, toxic and harmful gases and corrosive gases. . In the diaphragm compressor, the piston pushes the working oil in the cylinder oil chamber, and then pushes the diaphragm to reciprocate in the diaphragm chamber to change the working volume of the air chamber, and achieve no leakage with the cooperation of the suction and exhaust valves periodic work process. In the hydraulic oil circulation system of the diaph...

Claims

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Application Information

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IPC IPC(8): F04B51/00F04B45/053
CPCF04B45/053F04B51/00
Inventor 彭学院李雪莹任省栋汪婷贾晓涵
Owner 陕西康谱智慧科技有限责任公司
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