High-pressure gas particulate matter sampling device

Abstract

The invention relates to the field of gas detection, and especially relates to a high-pressure gas particulate matter sampling device. The device comprises a high-pressure gas filtering chamber, wherein two ends of the high-pressure gas filtering chamber are respectively provided with a sampler interface and a discharge port which are communicated with the interior of the high-pressure gas filtering chamber, a filtering membrane is arranged in the high-pressure gas filtering chamber, and the high-pressure gas filtering chamber is respectively provided with replacement gas interfaces which arepositioned on two sides of the filtering membrane and are communicated with the interior of the high-pressure gas filtering chamber. Residual hydrogen can be purged by nitrogen through the displacer interface, so hydrogen and air are prevented from being mixed, the concentration critical value of combustion explosion is reached, and the safety is higher; in addition, as a bypass, the pressure difference before and after the filter membrane can be balanced, and the filter membrane rupture risk is reduced; besides, the sampling process of the high-pressure gas particulate matter sampling devicecompletely conforms to the real filling process, so the test result is completely consistent with the real situation, and the real effectiveness of data is ensured.

Description

technical field [0001] The invention relates to the field of gas detection, in particular to a high-pressure gas particle sampling device. Background technique [0002] Hydrogen is a clean and efficient secondary energy source. With the development of hydrogen energy technology and the response to increasingly severe global climate change, many developed countries have raised the development of hydrogen energy industry to the height of national energy strategy. At present, hydrogen in my country is mainly used for the synthesis of ammonia and methanol, and the production of refining and chemical products. About 3% of hydrogen is used as industrial gas for reducing gas and protective gas in industries such as metallurgy, steel, electronics, building materials, and fine chemicals. , Reactive gas, etc. [0003] With the continuous breakthrough of hydrogen energy fuel cell technology, hydrogen energy fuel cell vehicles not only have the characteristics of long mileage and short...

AI Technical Summary

Problems solved by technology

[0004] At present, there are many patents on detection methods and devices for particle concentration, such as CN103245601A and CN104132863A, but these detection methods and devices are only suitable for the detection of atmospheric particles, not for the detection of flammable and explosive gases

Images