A safe non-radiative dielectric barrier discharge device

Abstract

A safe and non-radiative dielectric barrier discharge device is characterized in that it is composed of a discharge tube (2), a moving electrode rack ( whose main body is a moving electrode groove (3)and a moving electrode groove cover (4)), a fixed electrode rack ( whose main body is a fixed electrode groove (5)), a sample injection rack (6) and a metal shell (1). The discharge tube (2) is a place where a dielectric barrier discharge phenomenon occurs; The movable electrode holder is used for sealing and arranging the electrode (7); The fixed electrode rack is used for sealing the electrode(7) and communicating with the sample injection rack (6); The sample injection rack (6) is provided with a carrier pipeline (17) and an ignition wire hole (18); The metal shell (1) is divided into twosymmetrical upper and lower parts and covers the other four parts. The device improves the safety of the dielectric barrier discharge device, makes it easy to adjust the electrode distance, enhancesthe stability of the airflow, can safely ignite under low pressure, can shield the electromagnetic radiation, and has a broad prospect.

Description

Technical field [0001] The invention belongs to the field of dielectric barrier discharge devices, in particular to a dielectric barrier discharge device with high safety and no electromagnetic radiation. Background technique [0002] Dielectric barrier discharge devices, with low power, low energy consumption, low temperature, small size, and diverse applications, have become a hot spot in the field of analytical instruments, especially as an atomizer or cracking device, which produces cracked compounds (organic compounds, hydrides, etc.) Atom, in connection with atomic spectroscopy equipment. [0003] Commonly used dielectric barrier discharge devices are of flat type or cylindrical type. They are composed of a dielectric material and two electrodes. The electrodes are generally conductive materials such as copper foil and aluminum foil. The dielectric materials are generally insulating materials such as quartz and glass. Compared with carburetor or cracking device, the material...

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Problems solved by technology

[0010] The invention provides a cylindrical dielectric barrier discharge device with high safety, adjustable electrode distance, high airflow stability, low-voltage ignition, and no electromagnetic radiation, which solves the problem of unsafe electrode exposure and electrode distance adjustment of commonly used dielectric barrier discharge devices. Inconvenient, unstable sample gas flow, low pressure is difficult to ignite to generate plasma and easy to generate electromagnetic radiation interference and other problems

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