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Oxygen sensing probe/analyzer

A technology of probe and gas analysis system, which is applied in the direction of analyzing materials, material analysis by electromagnetic means, instruments, etc., and can solve problems such as limitation

Pending Publication Date: 2022-08-02
ROSEMOUNT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

While combustion provides a relatively low cost energy source, the process is usually sought to maximize combustion efficiency, as the resulting flue gases exiting the system may be subject to regulations regarding harmful gas emissions

Method used

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  • Oxygen sensing probe/analyzer
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  • Oxygen sensing probe/analyzer

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Experimental program
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Embodiment Construction

[0009] Some oxygen measurement systems use zirconia sensor cells. The zirconia sensor unit works by detecting the difference in oxygen concentration between the two sides of the sensor (sensing side and reference side). A reference gas with a known oxygen concentration is usually used on the reference side of the sensor. For some applications, ambient air is used as the reference gas. The other side of the sensor is in the environment where oxygen measurements are required. The environment may be, for example, the flue gas or exhaust gas flow of a combustion system. Based on the known concentration of the reference gas and the detected difference between the reference side and the sensor side, the oxygen content in the measured environment can be calculated.

[0010] Traditional oxygen probes use a gasket as the seal between the sensing and reference sides of the sensor. However, gaskets have some known drawbacks, increased cost and risk of failure when used in oxygen sens...

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Abstract

A probe gas analysis system is provided. The probe gas analysis system includes a probe body (104) configured to be exposed to a source of process gas (14). The probe gas analysis system also includes a sensor cell assembly having a sensor cell (200), the sensor cell (200) having a sensing side (210) and a reference side (208). The sense side (210) is arranged to contact the process gas source (14) and to generate a signal indicative of a detected difference in oxygen concentration between the reference side (208) and the sense side (210). The probe gas analysis system also includes a substantially permanent seal (206) coupling the sensor cell assembly (200) to the probe body (104), wherein the substantially permanent seal (206) separates the reference side (208) from the sensing side (210).

Description

[0001] This application is a divisional application of a patent application (international filing date on May 6, 2016, application number 201680025603.4, and the name of the invention is "Oxygen Sensing Probe / Analyzer"). Background technique [0002] Industrial production processes often rely on energy sources such as combustion to generate steam or heat from feedstock liquids. Some combustion processes involve the operation of furnaces or boilers. While combustion provides a relatively low-cost energy source, maximizing combustion efficiency is generally sought in the process, as the resulting flue gas exiting the system may be subject to regulations regarding harmful emissions. Therefore, one goal of the combustion process management industry is to maximize the combustion efficiency of existing furnaces and boilers, thereby substantially reducing the production of greenhouse gases or other harmful by-products. Combustion efficiency can be optimized by maintaining ideal leve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/409G01N27/407
CPCG01N27/4078G01N27/409G01N27/4073
Inventor 约瑟夫·C·尼默尔马克·D·斯托杰克夫
Owner ROSEMOUNT INC