公开(公告)号：US6014892A

公开(公告)日：2000-01-18

申请号：US53769

申请日：1998-04-02

申请人： Gilles Baret ,  Roland Gevaud ,  Alain Devance

发明人： Gilles Baret ,  Roland Gevaud ,  Alain Devance

IPC分类号： G01M3/20

CPC分类号： G01M3/202

摘要： A tracer gas leak detector that analyzes a test gas for presence of a tracer gas therein, including at least one gas analyzer, a secondary pump whose suction inlet is connected to the gas analyzer, a primary pump connected to the secondary pump outlet via a first pipe fitted with a first valve, and a second pipe connecting the first pipe from a point situated between the first valve and the primary pump to an inlet of the detector for connection to an enclosure via a pre-evacuated flow and said gas analyzer receiving said test gas from a part of said pre-evacuated flow, the second pipe being fitted with a second valve, the primary pump serving to pre-evacuate the enclosure, wherein a sampling member for sampling the flow travelling along the second pipe is situated directly on the wall of the second pipe in direct contact with the flow and is connected via a duct directly to the analyzer, the sampling member having flow conductance enabling the pressure in the duct to be compatible with operation of the gas analyzer while the second pipe is at a pressure greater than 10 mbar.

摘要翻译： 一种示踪气体泄漏检测器，其分析其中示踪气体的存在的测试气体，包括至少一个气体分析器，其吸入口连接到气体分析器的次级泵，经由第一泵连接到次级泵出口的主泵 配有第一阀的管，以及将第一管从位于第一阀和主泵之间的点连接到检测器的入口的第二管，用于经由预抽空流连接到外壳，并且所述气体分析器接收所述 从所述预抽空流的一部分测试气体，所述第二管装配有第二阀，所述主泵用于预抽空所述外壳，其中用于对沿着所述第二管行进的流进行取样的取样构件直接位于 第二管的壁与流体直接接触并通过管道直接连接到分析器，采样构件具有使导管中的压力能够相容的流动导通 在第二管道处于大于10毫巴的压力下，气体分析器的h运行。

公开(公告)号：US06263724B1

公开(公告)日：2001-07-24

申请号：US09284206

申请日：1999-07-08

申请人： Alain Devance

发明人： Alain Devance

IPC分类号： G01M304

CPC分类号： G01M3/207 ,  G01N33/0006

摘要： A gas analyzer comprising a pump unit and autocalibration means, characterized in that the gas analyzer is connected to a storage tank having a calibrated leak and filled with a mixture of n gases having different masses, and wherein the partial leakage flow of each of said n gases which through said calibrated leak is known.

摘要翻译： 一种气体分析器，包括泵单元和自动校准装置，其特征在于，所述气体分析器连接到具有校准泄漏并且填充有不同质量的n种气体的混合物的储罐，并且其中所述n 通过所述校准泄漏的气体是已知的。