公开(公告)号：WO2004086024A1

公开(公告)日：2004-10-07

申请号：PCT/US2004/008792

申请日：2004-03-18

Applicant: ROSEMOUNT ANALYTICAL INC.

Inventor： STEPHANOS, Stephen, J. ,  KEYES, Marion, A.

IPC: G01N27/407

CPC classification number: G01N33/0006 ,  G01N27/4077 ,  G01N27/4175 ,  G01N2001/227

Abstract: A combustion gas analyzer (51) for measuring the concentration of a gas constituent in an exhaust gas stream (17) is provided. The gas analyzer (51) includes a sensor cell assembly (14) coupled to a transmitter (9) having electrical circuitry (12) configured to provide an output of the concentration of the gas constituent as sensed by the sensor cell assembly (14). The combustion gas analyzer also includes a filter (20) substantially enclosing the sensor cell assembly (14) and a conduit (26) coupled to the filter at a first end (28) of the conduit (26) and coupled to a valve assembly (38) at a second end (30) of the conduit (26). The conduit (26) is used for supplying a calibration gas to the sensor cell assembly (14) or for supplying a blow-back gas used to purge the filter (20).

Abstract translation: 提供一种用于测量废气流（17）中的气体成分浓度的燃烧气体分析器（51）。 气体分析器（51）包括耦合到具有电路（12）的发射器（9）的传感器单元组件（14），该电路被配置为提供由传感器单元组件（14）感测的气体成分浓度的输出。 燃烧气体分析器还包括基本上包围传感器单元组件（14）的过滤器（20）和在导管（26）的第一端（28）处联接到过滤器的导管（26），并且连接到阀组件 38）在导管（26）的第二端（30）处。 导管（26）用于向传感器电池组件（14）供应校准气体或用于提供用于吹扫过滤器（20）的回吹气体。