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Method and equipment for monitoring gas in combustion system

A gas and burner technology, which is used in the field of gas monitoring and equipment in combustion systems, and can solve problems such as difficulty in obtaining practical use

Inactive Publication Date: 2003-08-06
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such "filtered" NO x sensor due to mainly CO and O 2 The effects of other ingredients are difficult to obtain for practical use

Method used

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  • Method and equipment for monitoring gas in combustion system
  • Method and equipment for monitoring gas in combustion system
  • Method and equipment for monitoring gas in combustion system

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Embodiment Construction

[0034] The invention can be used in several combustion applications, including electric boilers and fossil burners. In one form, the present invention monitors and / or measures oxygen, NO x and various flammable gases. These sensors can be combined to provide distribution and mapping of combustion variables as an effective tool for combustion optimization.

[0035] To achieve the goal of stable and efficient operation of any combustion plant, continuous, on-line monitoring of various combustion variables and their distribution in the different combustion zones is useful. When this type of monitoring is effectively implemented, individual burners and post-flame combustion controls can be adjusted to achieve the optimum relationship between fuel and airflow, optimum distribution of individual airflows and reburning fuel flow, and optimization of other boiler adjustments, Thereby greatly improving the efficiency of the burner.

[0036] It is known to use on-site oxygen sensors ...

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PUM

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Abstract

A method and apparatus for monitoring and measuring gas concentrations in combustor applications (100) is provided, wherein the apparatus is a gas sensor having a plurality of electrodes (204, 206) cooperating with a single electrolyte cell (202) for detecting the presence and concentration of gaseous components of a flue gas (212). A voltage is generated based on the flow of ions caused by differing gas concentrations as detected by electrodes across the electrolyte. The change in voltage is correlated and is used to determine the concentration of detected gases, such as combustible gases, nitric oxides, carbon monoxide, etc., contained in the flue gas. The combustor operation may then be optimized to enhance efficiency and minimize undesired gas concentrations in the flue gas in a desired fashion. A calibration gas may be introduced to calibrate the apparatus and a reference gas may be provided to an electrode as a basis for correlating the concentrations of the gases.

Description

technical field [0001] The present invention relates to the monitoring of various constituent gases in combustion systems, such as exhaust gases, including systems using sensors in combustion applications, such as boilers, blast furnaces, gas turbines or fossil burners. Background technique [0002] It is instructive to understand the nature and operation of the invention to set forth some exemplary applications. For example, in many industrial facilities or environments, hydrocarbon fuels are burned in burners such as boilers or blast furnaces to generate heat to increase the temperature of fluids. In order for the burner to work efficiently and produce acceptable complete combustion with by-products / products of combustion that are environmentally and design compliant, any boiler needs to be clean and efficient, and all post flame control systems should be properly balanced and regulated. [0003] In order to meet the requirements of environmental protection, the unburned ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/409G01N27/407G01N27/416
CPCG01N27/407
Inventor M·赫辛C·A·帕尔默D·A·施奈德D·S·拜尔德L·P·安德森
Owner GENERAL ELECTRIC CO
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