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Apparatus and method for a modulating burner controller

a burner controller and apparatus technology, applied in the field of control systems, can solve the problems of not addressing modulation over a broad range of operating parameters of the yoshihiko, and achieve the effects of low cost, high turndown capability, and cost effective control

Inactive Publication Date: 2010-05-06
VARIDIGM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]The present invention provides a cost effective control methodology for variable output burner applications through the use of a series of controllable variable output components and utilizing feedback sensors for precision closed loop control. In some embodiments, the invention includes a modulating combustion apparatus and method having low cost and high turndown capabilities. In some embodiments, the invention also includes a modulating combustion apparatus and method able to operate outside of the range of a low cost sensor. In some embodiments, the invention also includes a modulating combustion apparatus and method able to stably turndown a combustion air device.

Problems solved by technology

Yoshihiko does not address modulation over a broad range of operating parameters.

Method used

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  • Apparatus and method for a modulating burner controller
  • Apparatus and method for a modulating burner controller
  • Apparatus and method for a modulating burner controller

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Embodiment Construction

[0024]In some embodiments, the invention relates to burners or combustion devices, such as furnaces, heaters, forced warm air applications, water heaters, boilers, power burners, kilns, ovens, process furnaces, gas turbines, internal combustion engines, and / or the like. The apparatus and the method can provide control of a burner beyond merely supplying fuel and providing air for combustion at a fixed flow rate while igniting the mixture. Desirably, the apparatus and the method allow for efficient operation over a wide or broad range of operation or firing.

[0025]Furnaces may include any suitable size and / or configuration. Residential furnaces may include any suitable capacity, such as less than about 41 kilowatts (about 140,000 british thermal units per hour). Commercial furnaces may include any suitable capacity, such as greater than about 58 kilowatts (about 200,000 british thermal units per hour). Additional furnaces or units may be staged, such as to add or supply additional cap...

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PUM

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Abstract

This invention describes a modulating burner controller device for varying burner combustion over a wide range and has an output that integrates the control of all functions required to operate the burner. Specifically, the controller uses measured feedback from a fuel flow sensor to attain the proper mixture of fuel and air for optimum combustion performance for both individual and multiple the burner applications.

Description

BACKGROUND OF INVENTION[0001]1. Field of the Invention[0002]The present invention describes a control system to modulate fired combustion burners based on a fuel flow feedback loop with corresponding modulating combustion air flow to provide precise control of the fuel / air ratio. In particular, the present invention relates specifically to the control of burners and includes provisions for systems and techniques for a wide variety of applications.[0003]2. Discussion of the Related Art[0004]West, U.S. Pat. No. 4,645,450, discloses a system and a process for controlling the flow of air and fuel to a burner. West discloses a pair of differential pressure sensors connected across 1) the air conduit and the burner, and 2) the fuel conduit and the burner. West discloses a butterfly valve in the blower conduit after the blower.[0005]Tesar et al., U.S. Pat. No. 6,213,758, discloses a burner air / fuel ratio regulation method and apparatus for a web dryer. Tesar et al. discloses monitoring the...

Claims

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Application Information

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IPC IPC(8): F23N5/00
CPCF23N1/022F23N3/042F23N3/082F23N5/00
Inventor MAIELLO, DENNIS R.GAMBIANA, DENNIS S.BLANKENSHIP, BRADFORD L.
Owner VARIDIGM CORP
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