Oxygen measuring apparatuses
Inventors
Lelic, Muhidin A. • Corti, Thomas • Osagiede, Oduwa • Swanson, Kenneth M. • Devine, John R. • McCarron, Mike • Mills, Bryan
Assignees
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Publication Number
US-8839746-B2
Publication Date
2014-09-23
Expiration Date
Abstract
An oxygen measuring apparatus (500) includes an inlet pipe (506) having a first end and a second end, an oxygen sensor (511) arranged inside the inlet pipe (506) between the first end of the inlet pipe and the second end of the inlet pipe, the oxygen sensor (511) having a communication medium (515) disposed thereon and extending through the second end of the inlet pipe (506), a filtering medium arranged (505) inside the inlet pipe between the oxygen sensor (511) and the first end of the inlet pipe, a housing (501) arranged against the second end of the inlet pipe, and a sensor control interface (512) arranged within the housing (501) and in communication with the communication medium (515) of the oxygen sensor (511).
Core Innovation
An oxygen measuring apparatus is provided with an inlet pipe having a first end and a second end. An oxygen sensor is arranged inside the inlet pipe between the first end and the second end, where the oxygen sensor has a communication medium disposed thereon and extending through the second end of the inlet pipe. A filtering medium is arranged inside the inlet pipe between the oxygen sensor and the first end.
The apparatus includes a housing arranged against the second end of the inlet pipe. A sensor control interface is arranged within the housing and is in communication with the communication medium of the oxygen sensor. In alternative embodiments, the oxygen sensing cartridge is arranged inside the inlet pipe, including an outer wall in contact with an inner wall of the inlet pipe, a communication medium disposed thereon, and a filtering medium arranged therein, together with a housing positioned relative to the cartridge and the inlet pipe.
A boiler control system is provided with a combustion chamber and a flue stack in communication with the combustion chamber. The system includes a closed-loop boiler control portion communicating with the flue stack and the combustion chamber, and an oxygen measuring apparatus arranged on the flue stack. The oxygen measuring apparatus includes an inlet pipe extending through a wall of the flue stack, an oxygen sensing cartridge arranged inside the inlet pipe with a communication medium and filtering medium, a housing arranged around the inlet pipe/cartridge and against the flue stack wall, and a sensor control interface arranged within the housing and communicating with the cartridge communication medium.
Claims Coverage
The independent claims are directed to three inventive features: two forms of an oxygen measuring apparatus and a boiler control system integrating the oxygen measuring apparatus. Across these independent claims, the core inventive features are the inlet pipe placement of an oxygen sensing element, the use of a communication medium through an extending end into a housing, the presence of a filtering medium, and the sensor control interface arranged within the housing in communication with the communication medium.
Oxygen sensor in inlet pipe with filtering medium and housing sensor control interface
An inlet pipe having a first end and a second end, an oxygen sensor arranged inside the inlet pipe between the first end and the second end with a communication medium disposed on the oxygen sensor and extending through the second end of the inlet pipe, a filtering medium arranged inside the inlet pipe between the oxygen sensor and the first end, a housing arranged against the second end of the inlet pipe, and a sensor control interface arranged within the housing and in communication with the communication medium of the oxygen sensor.
Oxygen sensing cartridge in inlet pipe with filtering medium and housing sensor control interface
An inlet pipe having a first end and a second end, an oxygen sensing cartridge arranged inside the inlet pipe with an outer wall in contact with an inner wall of the inlet pipe, a first end in contact with the second end of the inlet pipe, a communication medium disposed thereon, and a filtering medium arranged therein, a housing arranged between the second end of the inlet pipe and the first end of the oxygen sensing cartridge, and a sensor control interface arranged within the housing and in communication with the communication medium of the oxygen sensing cartridge.
Boiler control system using flue stack oxygen measuring apparatus with oxygen sensing cartridge
A boiler control system comprising a combustion chamber, a flue stack in communication with the combustion chamber, a closed-loop boiler control portion in communication with the flue stack and the combustion chamber, and an oxygen measuring apparatus arranged on the flue stack; where the oxygen measuring apparatus includes an inlet pipe having a first end and a second end extending through a wall of the flue stack, an oxygen sensing cartridge arranged inside the inlet pipe with an outer wall in contact with an inner wall of the inlet pipe and having a communication medium and a filtering medium, a housing arranged around the second end of the inlet pipe, the first end of the oxygen sensing cartridge, and against the wall of the flue stack, and a sensor control interface arranged within the housing and in communication with the communication medium of the oxygen sensing cartridge.
The independent claims cover two forms of an oxygen measuring apparatus and a boiler control system that integrates the oxygen measuring apparatus on a flue stack. In each apparatus form, the claims emphasize an inlet pipe with an oxygen sensing element, a filtering medium, a communication medium extending into a housing, and a sensor control interface arranged within the housing in communication with that communication medium.
Stated Advantages
Documented Applications
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