Hydrogen compressor host and compression method

Abstract

The invention relates to a hydrogen compressor host and a compression method. The hydrogen compressor host comprises a primary air cylinder, a secondary air cylinder and an oil cylinder, wherein a first compression cavity is disposed in the primary air cylinder; a second compression cavity which communicates with the first compression cavity is disposed in the secondary air cylinder; the oil cylinder internally comprises two independent auxiliary oil cavities which are separated by an oil cylinder piston; and the two sides of the oil cylinder piston are connected with a primary piston of the primary air cylinder and a secondary piston of the secondary air cylinder through a primary piston rod and a secondary piston rod correspondingly. The hydrogen compressor host and the compression method have the beneficial effects that the air cylinder compression cavities and the pistons are of an oil-lubrication-free structure, and process gas is protected and not contaminated; hydraulic oil is completely separated from the process gas, and thus the hydraulic oil can be prevented from contaminating the gas; the hydrogen gas entering pressure range is wide, and a pressure regulator is not needed at an inlet; through the scheme, during air cylinder working, the piston stroke is long, the speed is low, the clearance volume is small, and volume efficiency is high; and by adopting the water cooled air cylinders, the running temperature is lowered, and the service life is prolonged.

Description

technical field [0001] The invention relates to a compressor host and a compression method, belonging to the field of compressors, in particular to a hydrogen compressor host and a compression method. Background technique [0002] The host of the hydrogen compressor is an important component of the hydrogen compressor. It is responsible for the compression of the gas. The performance of the host of the hydrogen compressor directly affects the work of the hydrogen compressor. At present, the general hydrogen compressor uses a metal diaphragm compressor, and the metal diaphragm hydrogen compressor The machine needs to use an extremely thin metal diaphragm to completely separate the compressed gas from the hydraulic oil, and the hydraulic structure and cooling system are also relatively complicated. The technical difficulty is much higher than that of conventional compressors, and the displacement of the compressor is low. [0003] Therefore, improving the hydrogen compressor i...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a hydrogen compressor host and compression method to solve the complex structure of the metal diaphragm hydrogen compressor proposed in the above background technology, high technical difficulty, low compressor displacement and other reasons. The problem

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