Device for simultaneously measuring contents of hydrogen sulfide, carbon dioxide and water in natural gas

Abstract

The invention discloses a device for simultaneously measuring the content of hydrogen sulfide, carbon dioxide and water in natural gas, and the device comprises a test bottom plate, a butt joint assembly, a reflection cavity, a gas inlet, a gas outlet, an explosion-proof cavity, a first laser generator, a second laser generator, a collimator and a detector PD, and one side of the top of the test bottom plate is provided with a rear end support plate; a rear end cover is arranged on the rear end support plate; a reflection cavity and an explosion-proof cavity are used as main measurement supporting structures, a carried first laser generator and a carried second laser generator are connected with a collimator to respectively emit laser to the reflection cavity, and the concentration of hydrogen sulfide, carbon dioxide and water molecules is subjected to inversion measurement according to detected light intensity change information. One set of equipment can complete comprehensive analysis of natural gas indexes, the overall structure is simple, and the technical feasibility is high; the collimator and the detector PD in the explosion-proof cavity can be conveniently maintained and overhauled through the butt joint assembly, the maintenance is simple, and the maintenance cost of the equipment is reduced.

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