Non-contact type full-automatic gas sample retention device

Abstract

The invention discloses a non-contact type full-automatic gas sample retention device. The non-contact type full-automatic gas sample retention device comprises a sampling pipe which is sequentially provided with a sample gas valve, an evacuation flowmeter and an air pumping pump, wherein a plurality of gas bags are connected to the sampling pipe between the sample gas valve and the evacuation flowmeter via sample gas branch pipes, and a communicating valve is arranged on each sample gas branch pipe; the non-contact type full-automatic gas sample retention device further comprises an air pipeline which is sequentially provided with an air valve, a sampling flowmeter and a sampling gas pump, a plurality of vacuum boxes which are in one-to-one correspondence with the gas bags are connected to the air pipeline between the air valve and the sampling flowmeter via evacuation branch pipes, each gas bag is hermetically arranged in the corresponding vacuum box, and a bleeder valve is arranged on each evacuation branch pipe; and the non-contact type full-automatic gas sample retention device further comprises a controller which is electrically connected with the various flowmeters, the valves and the gas pumps. The device can be used for not only realizing automatic precise sample retention of gas, improving the production efficiency and saving the labor cost, but also isolating artificial contact by the design of the non-contact type gas bags, facilitating the installation of a gas heating device and simultaneously improving the production safety; and furthermore, the device can ensure that gas has no pollution and no loss during the whole process.

Description

technical field

[0001] The invention relates to a non-contact automatic gas sample retention device. Background technique

[0002] Gas sample retention is an important link in the process of gas production and detection. For gases that do not meet the standards (such as the polytetrafluoroethylene gas currently produced by the company, it has chemical stability, non-stickiness, lubricity, electrical insulation, and aging resistance. And many advantages of radiation resistance, usually used as lining materials, which need to be tested before leaving the factory), must be extracted and stored in one or more air bags for subsequent verification, analysis and verification.

[0003] The current conventional practice relies on manual sample retention, which not only takes time and effort, but also makes the company bear a lot of labor costs. For gas samples that exceed the standard, it is difficult for workers to control when to retain samples and how much to retain. It is very l...

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