US 2025/0180455 A1 · TESTING DEVICE AND METHOD FOR IMMERSING MATERIALS IN HIGH-TEMPERATURE AND HIGH-PRESSURE HYDROGEN GAS

Abstract

A testing device and method for infiltrating a material into high-temperature and high-pressure hydrogen are provided. The testing device includes a high-pressure cabin, internally including a sample to be tested; a hot oil-coated heating and insulation system, coating outside the high-pressure cabin to adjust and maintain a temperature in the high-pressure cabin; a hydrogen compressor, communicated with the high-pressure cabin to adjust a pressure in the high-pressure cabin; a vacuum pump, communicated with the high-pressure cabin to vacuumize the high-pressure cabin; a scavenging system, communicated with the high-pressure cabin to purge air impurities in the high-pressure cabin with an inert gas; and a controller, electrically connected with the hydrogen compressor, the vacuum pump, and the scavenging system, and configured to control actions of the hydrogen compressor, the vacuum pump, and the scavenging system.

Claims20

Dependent claims

A testing device for infiltrating a material into high-temperature and high-pressure hydrogen, comprising:

a high-pressure cabin, internally including a sample to be tested;
a hot oil-coated heating and insulation system, coating outside the high-pressure cabin to perform heating and heat insulation on the high-pressure cabin to adjust and maintain a temperature in the high-pressure cabin;
a hydrogen compressor, communicated with the high-pressure cabin to adjust a pressure in the high-pressure cabin;
a vacuum pump, communicated with the high-pressure cabin to vacuumize the high-pressure cabin;
a scavenging system, communicated with the high-pressure cabin to purge air impurities in the high-pressure cabin with an inert gas;
and
a controller, electrically connected with the hydrogen compressor, the vacuum pump and the scavenging system to control actions of the hydrogen compressor, the vacuum pump and the scavenging system.

4 more elements

A testing method for infiltrating a material into high-temperature and high-pressure hydrogen, comprising:

determining a target environment temperature, an environment pressure, and a preset number of hydrogen charging;
preparing a geometrical shape of a sample to be tested;
placing a sample to be tested in a high-pressure cabin and airtightly locking the high-pressure cabin;
performing vacuumizing;
performing purging with an inert gas to remove air impurities in the high-pressure cabin;
introducing a specified gas into the high-pressure cabin to a specified pressure and a specified temperature;
after maintaining for a specified period of time, opening a release valve to reduce the specified pressure to a normal pressure;
determining whether the number of hydrogen charging is reached, if not, returning to the step of introducing a specified gas into the high-pressure cabin to a specified pressure and a specified temperature, and if yes, proceeding to a next step;
injecting an inert gas into the high-pressure cabin to reduce the specified temperature to 40° C. or below and reduce the specified pressure to the normal pressure;
and
taking out the sample to be tested for mechanical test and numerical analysis.

8 more elements

Dependencies are inferred from the claim text.

Testing device and method for immersing materials in high-temperature and high-pressure hydrogen gas

Life of this patent

Testing device and method for immersing materials in high-temperature and high-pressure hydrogen gas

Life of this patent

Abstract

Claims20