A kind of filter element of spectrometer argon gas filter with waterproof and dustproof breathable film

Abstract

The invention discloses a filter element of an argon gas filter of a spectrometer with a waterproof, dustproof and breathable film. The main features are: the inner hole wall circumference of the core tube is provided with an inner waterproof, dustproof and breathable membrane along the left and right length directions, and the outer diameter surface circumference of the core tube is provided with an outer waterproof, dustproof and breathable membrane along the left and right length directions The outer surface of the outer waterproof, dustproof and breathable membrane is provided with a wool filter layer along the left and right length directions; the inner waterproof, dustproof and breathable membrane and the outer waterproof, dustproof and breathable membrane are stretched and expanded by polytetrafluoroethylene. The surface of the stretched PTFE membrane has more than 9 billion micropores per square inch, and the diameter of each micropore is 0.1-0.3 microns. During the detection process of the spectrometer, the argon gas flowing to the emission detection platform of the spectrometer is filtered three times through the filter element of the argon gas filter of the spectrometer, which can prevent dust, impurities in the argon gas, dust and water mist in the air from flowing to the emission detection platform of the spectrometer, Improve the accuracy of spectrometer detection results and product quality.

Description

technical field [0001] The invention relates to the technical field of spectrometers, in particular to a filter element of an argon gas filter of a spectrometer with a waterproof, dustproof and air-permeable film. Background technique [0002] The spectrometer is a high-precision metal element detection instrument. During the detection process, it needs to be carried out under the protection of a high-purity inert gas - argon (purity 99.999%), so that the detection results will be accurate. The existing argon gas is nominally They are all marked with a purity of 99.999%. Due to reasons such as the filling process and empty bottle cleaning, there are errors in the actual purity, which cannot meet the requirements of the spectrometer. Branded spectrometers produced in various countries in the world are equipped with argon filters in the argon pipeline in order to make the argon gas meet the requirements of use. The filtering effect is not ideal. Dust, impurities in the argon ...

AI Technical Summary

Problems solved by technology

[0002] The spectrometer is a high-precision metal element detection instrument. During the detection process, it needs to be carried out under the protection of a high-purity inert gas - argon (purity 99.999%), so that the detection results will be accurate. The existing argon gas is nominally They are all marked with a purity of 99.999%. Due to reasons such as filling process and empty bottle cleaning, the actual purity has errors, which cannot meet the requirements of the spectrometer.

Branded spectrometers produced in various countries in the world are equipped with argon filters in the argon pipeline in order to make the argon gas meet the requirements of use. It is made on the core, and the filtering effect is not ideal. Dust, impurities in the argon gas, dust and water mist in the air can also flow through the filter element to the emission detection platform of the spectrometer, which seriously affects the accuracy of the spectrometer test results and product quality.

Images