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Fluid analyser comprising a flammable substance and corresponding method

A technology for analyzers and fluids, applied in the field of analyzers, to solve problems such as explosions

Inactive Publication Date: 2015-07-22
APIX ANALYTICS +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, if the diluent gas, which is almost oxygen-free, itself contains flammable substances such as hydrogen, the mixture exiting the analyzer at the outlet itself presents a risk of explosion if it comes into contact with air or, more generally, with combustion-supporting substances

Method used

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  • Fluid analyser comprising a flammable substance and corresponding method
  • Fluid analyser comprising a flammable substance and corresponding method
  • Fluid analyser comprising a flammable substance and corresponding method

Examples

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Embodiment Construction

[0051] refer to Figures 1 to 5 The analyzer 1 according to the present invention will be described. The analyzer 1 is used, for example, to analyze a fluid 3 from an oil refinery.

[0052] The fluid 3 is, for example, a mixture of gases produced by petrochemical methods, which gas mixture includes the substance to be analyzed, such as benzene. Benzene is a flammable substance with an LEL of 1.2%.

[0053] Analyzer( figure 1 ) includes a box body 5, a detector 7 located in the box body 5, an air source 9, and an injection nozzle 11 fluidly connected to the air source 9 at the air inlet and receiving the fluid 3 to be analyzed, the injection nozzle 11 It is connected to the detector 7 at the gas outlet through the box body 5. The analyzer 1 advantageously comprises a modular interface 13 on which the tank 5 and the injection nozzle 11 are mounted.

[0054] The analyzer 1 in turn comprises an assembly 15 for supplying and controlling the air source 9 , the injection nozzle ...

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Abstract

The invention relates to an analyser 1 for analysing a fluid 3 comprising at least one substance to be analysed and at least one flammable substance, including: a gas source 9 for providing a flow of diluting gas; an injector 11 for injecting samples of the fluid into the flow of diluting gas and for producing a gas stream; and a detector 7 for analysing the gas stream; the gas source is designed such as to supply a flow of diluting gas containing an oxidiser of the flammable substance, preferably such as to supply a flow of air; the injector is configured to inject samples of the fluid into the flow of diluting gas such that the mean volumetric fraction of the fluid in the gas stream is lower than 1 / 2,000, preferably lower than 1 / 20,000; and the detector includes at least one microsensor for detecting the substance to be analysed. The invention also relates to the corresponding method.

Description

technical field [0001] The invention relates to an analyzer capable of analyzing a fluid containing at least one substance to be analyzed and at least one flammable substance, the analyzer comprising: [0002] gas source, providing a diluent gas flow, [0003] injection nozzles for introducing samples of fluid into the dilution gas stream and generating a gaseous stream, and [0004] A detector is used to analyze the gaseous stream. [0005] The invention also relates to a method for analyzing a fluid containing at least one substance to be analyzed or an "analyte" and at least one combustible substance, which may be the analyte or other substance. Background technique [0006] The invention is particularly suitable for the analysis of fluids at risk of explosion or in explosive atmospheres. For example, the invention is suitable for analyzes performed in the petroleum industry, chemistry and petrochemistry. [0007] Explosive atmospheres or "ATEX" (ATmosphère EXlosible)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N33/28
CPCG01N33/225G01N33/22G01N30/16
Inventor 菲利浦·安德勒茨艾瑞克·克莱特菲利浦·科瑞克让-克洛德·德维特皮埃尔·皮热
Owner APIX ANALYTICS