Ultraviolet absorption air chamber assembly

Abstract

The invention discloses an ultraviolet absorption air chamber assembly which comprises a base and an air chamber assembly detachably connected with the base, the base comprises a lamp holder used forinstalling a lamp source and a connector used for being connected with a light transmission piece, the light outlet end of the lamp holder is detachably connected with the light inlet end of the air chamber assembly, and the light outlet end of the air chamber assembly is detachably connected with the light inlet end of the connector. The air chamber assembly is not directly connected with an optical fiber at the light outlet end, in the process of disassembling the air chamber assembly, the whole disassembling process is simple, cleaning is facilitated, and in the disassembling process, the situation that an optical fiber interface at the light outlet end is damaged or the light intensity of a light source is obviously changed due to light path change is avoided; a direct coupling mode isadopted between the air chamber assembly and the light source, so that optical fibers between the light source and the air chamber assembly is removed, the light source end is prevented from converging the light source into the optical fibers in a complex light condensation mode, and the phenomena of unstable lighting performance, insufficient light intensity introduction and the like caused by aging of the optical fibers at the light inlet end are improved.

Description

technical field

[0001] The invention relates to the technical field of gas analysis, in particular to an ultraviolet absorbing gas chamber assembly. Background technique

[0002] Ultraviolet absorption gas analyzers are equipped with a gas chamber and a light source structure. The part using the gas chamber is directly in contact with the gas to be measured, so there is medium pollution introduced by the gas flow, especially the optical lenses at both ends of the gas chamber will be polluted and the optical path will be damaged. blocked, the light source signal becomes weak or no light enters the air chamber at all. At this time, it is necessary to disassemble the air chamber or open the cleaning port on the top of the air chamber to scrub the lens. This method is not only complicated to disassemble but also difficult to clean. It is easy to cause the fiber interface to be damaged or the optical path change to cause obvious changes in the light intensity of the light source,...

Examples

Embodiment Construction

[0024] The ultraviolet absorption gas chamber assembly is used in ultraviolet absorption gas analyzers, which are mostly used for flue gas emission monitoring, so they are also called flue gas analyzers. The core structural components of existing analyzers mainly include light sources, ultraviolet absorption gas chambers Assembly, optical fiber and spectrometer, the optical path structure is that the ultraviolet light emitted by the light source enters the gas chamber through the optical fiber, then the ultraviolet light passes through the gas chamber and then transmits to the optical fiber, and finally enters the spectrometer through the optical fiber connection for analysis; the gas chamber is mainly the gas to be measured. And the part that absorbs the ultraviolet light; because the ultraviolet light emitted by the light source enters the gas chamber through the optical fiber, the optical fiber is generally an ultraviolet-resistant optical fiber, and the degree of bending als...

technical field

[0001] The invention relates to the technical field of gas analysis, in particular to an ultraviolet absorbing gas chamber assembly. Background technique

[0002] Ultraviolet absorption gas analyzers are equipped with a gas chamber and a light source structure. The part using the gas chamber is directly in contact with the gas to be measured, so there is medium pollution introduced by the gas flow, especially the optical lenses at both ends of the gas chamber will be polluted and the optical path will be damaged. blocked, the light source signal becomes weak or no light enters the air chamber at all. At this time, it is necessary to disassemble the air chamber or open the cleaning port on the top of the air chamber to scrub the lens. This method is not only complicated to disassemble but also difficult to clean. It is easy to cause the fiber interface to be damaged or the optical path change to cause obvious changes in the light intensity of the light source,...

Examples

Embodiment Construction

[0024] The ultraviolet absorption gas chamber assembly is used in ultraviolet absorption gas analyzers, which are mostly used for flue gas emission monitoring, so they are also called flue gas analyzers. The core structural components of existing analyzers mainly include light sources, ultraviolet absorption gas chambers Assembly, optical fiber and spectrometer, the optical path structure is that the ultraviolet light emitted by the light source enters the gas chamber through the optical fiber, then the ultraviolet light passes through the gas chamber and then transmits to the optical fiber, and finally enters the spectrometer through the optical fiber connection for analysis; the gas chamber is mainly the gas to be measured. And the part that absorbs the ultraviolet light; because the ultraviolet light emitted by the light source enters the gas chamber through the optical fiber, the optical fiber is generally an ultraviolet-resistant optical fiber, and the degree of bending als...

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