GAS ESCAPE PRESSURE TESTING DEVICE AND METHOD

WIPO Patent Application WO/2019/100812

A1

A gas escape pressure testing device and a testing method, pertaining to the technical field of high-level radioactive waste disposal. The testing device comprises a cylindrical body (6) used to contain a sample (5). A sealing segment is formed on an inner wall of the cylindrical body (6). One end of the cylindrical body (6) is a gas inlet end and another end of the cylindrical body (6) is a gas discharge end. A gas delivery device is connected to the gas inlet end, and a gas monitoring device is connected to the gas discharge end. The sealing segment is fabricated on the inner wall of the cylindrical body (6), so as to enable the expansible sample (5) to expand after absorbing water in order to block the sealing segment and to achieve a seal, such that a contact surface in a vertical direction between the sample (5) and the cylindrical body (6) is no longer smooth, thereby preventing gas from escaping from the interface between the sample (5) and the cylindrical body (6), and effectively improving the accuracy of a gas escape pressure testing result.

LIU JIANGFENG (CN)
NI HONGYANG (CN)
SONG SHUAIBING (CN)
CAO XULOU (CN)
PU HAI (CN)
MAO XIANBIAO (CN)
CHEN SHULIANG (CN)

PCT/CN2018/104638

May 31, 2019

September 07, 2018

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UNIV CHINA MINING (CN)
XUZHOU USURE MINING TECH CO LTD (CN)

G01L13/00; G01N3/12; G01N15/08

CN108168768A	2018-06-15
CN204461880U	2015-07-08
CN103776744A	2014-05-07
CN105547848A	2016-05-04
CN103556993A	2014-02-05
CN104792685A	2015-07-22
US20150355068A1	2015-12-10

NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)

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