Device and method for testing air suction performance of gas adsorption material
A technology of gas adsorption and testing device, which is applied in the direction of analyzing materials and instruments, and can solve the problems of not considering temperature factors and low accuracy of measurement results.
Pending Publication Date: 2022-05-31
ZHONGSHAN KAIXUAN VACUUM SCI & TECH CO LTD
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[0004] The purpose of the present disclosure is to provide a gas absorption performance testing device and testing method to alleviate the existing in the prior art in the process of testing the gas absorption performance of the gas absorption material without considering the actual working environment temperature factor, determine Technical issues with lower accuracy of results
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[0034] The technical solution of the present disclosure will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.
[0035]In the description of the present disclosure, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear ", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the referred device or element must have a s...
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Abstract
The invention relates to the technical field of material characteristic testing, in particular to a gas absorption performance testing device and method for a gas adsorption material. The testing device comprises a gas storage container, a vacuum unit, a sample chamber, a vacuum element and refrigeration equipment, the gas storage container is used for storing gas to be adsorbed, the vacuum unit is communicated with an outlet of the gas storage container, and the vacuum element is provided with a through hole; the refrigeration equipment is used for keeping the to-be-tested sample at a set temperature; the device further comprises a first vacuum gauge and a second vacuum gauge, an adjusting valve is arranged between the gas storage container and the first vacuum gauge, and the adjusting valve is used for keeping the reading of the second vacuum gauge stable. When to-be-adsorbed gas flows through the through hole of the vacuum element, a pressure difference occurs between the gas inlet side and the gas outlet side of the vacuum element, the adjusting valve is adjusted to enable the reading of the second vacuum gauge to be stable, and the gas suction rate of a to-be-detected sample at different moments and the total gas suction amount in a period of time are calculated by obtaining the gas pressure value of the first vacuum gauge changing along with time. The test result is high in accuracy.
Description
technical field [0001] The present disclosure relates to the technical field of material characteristic testing, and in particular to a gas absorption performance testing device and testing method of gas adsorption materials. Background technique [0002] Common gas adsorption materials include molecular sieves, activated carbon, palladium monoxide, zirconium / titanium alloy getters, graphene, activated alumina, silica gel, etc. With the continuous expansion of the application field of vacuum technology, these gas adsorption materials are used more and more widely. For example, in equipment such as high-vacuum low-temperature heat-insulated containers, low-temperature medium transportation pipelines, and cryopumps for semiconductor production lines, in order to maintain a high vacuum degree stably, it is necessary to use reliable hydrogen-absorbing materials. The greater the hydrogen absorption capacity, the The better the service life and production performance of the equip...
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IPC IPC(8): G01N7/04
CPCG01N7/04Y02E60/32
Inventor 胡勇李晓刚高峰邓从跃苏亮张伟
Owner ZHONGSHAN KAIXUAN VACUUM SCI & TECH CO LTD