Integrated hard sealing diaphragm of diaphragm compressor

Abstract

The invention discloses an integrated hard sealing diaphragm of a diaphragm compressor. A layer of copper alloy is directly electroplated on the process side diaphragm and the oil side diaphragm in anelectroplating manner. A layer of copper alloy is directly electroplated on a diaphragm in an electroplating mode, an electroplated layer serves as hard seal, can replace an O-shaped ring and servesas a sealing material, the copper alloy has certain ductility, the air cylinder can have certain deformation under the fastening of a bolt, the deformed electroplated layer can be tightly attached tothe upper air cylinder and the lower air cylinder, and the sealing effect is achieved. The process side diaphragm and the oil side diaphragm are provided with positioning holes, so that the installation is convenient, the diaphragm installation precision is improved, and the diaphragm displacement is prevented; the buffer layer is provided with a crack arrest hole and an unloading groove; the unloading groove can rapidly transmit leaked gas to a pressure sensor or a pressure gauge or a safety valve arranged in the leakage detection hole, the purpose of rapid detection is achieved, the crack stopping hole can prevent the unloading groove in the buffer layer from cracking, the service life of the buffer layer is prolonged, and the machining difficulty of the buffer layer in the unloading groove machining process is lowered.

Description

technical field [0001] The invention relates to the related field of diaphragm compressor sealing, in particular to an integrated hard sealing diaphragm of a diaphragm compressor. Background technique [0002] Diaphragm compressors are determined by their structural characteristics. It is widely used in compressing and conveying various high-purity gases, precious and rare gases, poisonous and harmful gases and corrosive gases. As an irreplaceable volumetric compressor, it will be Continuous improvement will have a wider range of applications. The main application fields of diaphragm compressors are: nuclear power nuclear energy, food and medicine, petrochemical industry, electronics industry, material industry, national defense and military industry and scientific experiments and other industries. [0003] The diaphragm compressor is driven by a motor, the crankshaft is rotated by the V pulley, and the piston in the oil cylinder is reciprocated and linearly moved through ...

AI Technical Summary

Problems solved by technology

[0005] The traditional diaphragm compressor diaphragm consists of three overlapping diaphragms, which are divided into process side diaphragm, oil side diaphragm and buffer layer. Generally, the seal between the diaphragm and the cylinder adopts an O-ring (such as figure 1 ), the O-ring is better used in a low-pressure environment, but in a high-pressure environment, the O-ring is prone to failure

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