Gas tightness detection device of double-cavity structure and detection method

• Main Authors: ZHOU CHUANDE, GAO XIAOFEI, TAN YONGHU, MENG MINGHUI
• Format: Patent
• Language: Chinese; English
• Published: 14.01.2020
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention relates to the gas tightness detection technology field, and provides a gas tightness detection device of a double-cavity structure and a detection method. The gas tightness detection device comprises a shell, a cover body, a gas source, a first flow sensor, a second flow sensor, a first pressure sensor, a second pressure sensor and a moving device, wherein the shell is provided witha first cavity and a second cavity; the cover body is used for keeping close contact with one end of the shell in a gas tightness detection process; the gas source is used for injecting a gas with certain pressure into the first cavity and the second cavity; the first flow sensor and the second flow sensor are used for measuring flow values of the gas injected into the first cavity and the secondcavity; the first pressure sensor and the second pressure sensor are used for measuring gas pressure values in the first cavity and the second cavity; and the moving device is used for enabling the one end of the shell and th