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...

AI Technical Summary

Problems solved by technology

[0003]Current conventional methods rely on manual sample retention, which not only takes time and effort, but also makes the company bear a lot of labor costs. Control when the sample should be retained, and how much to retain, it is very likely that the most representative sample gas will be missed or the amount of gas required for the verification will not be retained, which will bring inconvenience to future research and verification

Moreover, in the existing artificial gas sample retention process, because workers directly contact the air bag, improper operation can easily cause pollution and loss of the retained sample gas, resulting in inaccurate subsequent verification and analysis results, failing to achieve the desired purpose

[0004]Another important point is that for a type of gas that is easy to adsorb and stick, it needs to be heated throughout the process of transportation and sample retention, so it is required to prepare special heating equipment , the processing is more troublesome, which not only greatly increases the burden on workers, but also increases the production cost of enterprises

Moreover, workers accidentally contacting heating gas or air bags during the sample retention process may easily cause unnecessary safety accidents

Images