Ultrahigh pressure hydrogen pressure test system

Abstract

The invention discloses an ultrahigh pressure hydrogen pressure test system. The system comprises a hydrogen input port, wherein the hydrogen input port is connected with a gas inlet of a first gas cylinder group through a first pipeline provided with a first stop valve, a gas outlet of the first gas cylinder group is connected with a gas inlet of a second gas cylinder group through a second pipeline provided with a pressure reducing valve, a gas outlet of the second gas cylinder group is connected with a gas inlet of a 120MPa hydrogen compressor through a third pipeline, a gas outlet of the 120 MPa hydrogen compressor is connected with a gas inlet of a high pressure gas cylinder group through a fourth pipeline, a gas outlet of the high pressure gas cylinder group is connected with a hydrogen inlet and a hydrogen outlet of a test gas cylinder through a fifth pipeline, and the fifth pipeline is also connected with the first pipeline through a sixth pipeline provided with a fifth pneumatic ball valve and a second one-way valve. The ultrahigh pressure hydrogen pressure test system is high in test pressure, and adopts a combined pressurization mode of a diaphragm compressor and a high-pressure liquid-driven oil-free piston machine, and the pressurization pressure can reach 120MPa.

Description

technical field [0001] The invention relates to the technical field of skid-mounted hydrogenation equipment, in particular to an ultra-high pressure hydrogen pressure test system. Background technique [0002] With the continuous development of new energy sources and the rapid development of hydrogen energy, the demand for hydrogen cylinders with higher pressure and larger volume is getting higher and higher. The demand for testing equipment required for the production and development of hydrogen cylinders is also increasing. [0003] The high-pressure hydrogen pressure test system is used for hydrogen circulation experiments on hydrogen cylinders. The current high-pressure hydrogen pressure test system has the following drawbacks: [0004] (1) The system pressure is low. The maximum working pressure of the current high-pressure hydrogen pressure test system is 70MPa, which cannot meet the needs of the 90MPa hydrogen cylinder pressure cycle test; [0005] (2) The system fl...

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Problems solved by technology

[0004] (1) The system pressure is low. The maximum working pressure of the current high-pressure hydrogen pressure test system is 70MPa, which cannot meet the needs of the 90MPa hydrogen cylinder pressure cycle test;

[0005] (2) The system flow rate is small, the experiment efficiency is low, and the experiment time is long;

[0006] (3) The system does not have the function of temperature adjustment, and the temperature of the hydrogen filled in the hydrogen cylinder is too high, which does not meet the experimental requirements of the hydrogen cylinder test;

[0007] (4) The system does not have the flow control function, the hydrogen filled in the hydrogen cylinder can only be adjusted qualitatively, not quantitatively, and the detailed experimental parameters cannot be controlled

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