Zonal mapping for combustion optimization
An over-combustion, furnace technology, applied in the direction of using a variety of fuel combustion, combustion chambers, combustion types, etc., can solve the problems of expensive, increased complexity, time-consuming, etc.
Inactive Publication Date: 2014-03-26
GENERAL ELECTRIC CO
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Problems solved by technology
It is very time consuming and expensive to develop the computer model required to perform calculations for tracing the sensed quantities back to the contribution from each individual incinerator and / or air injector
Furthermore, a computer model aimed at identifying the precise contribution of each burner and / or air injector to the quantities sensed by the corresponding sensors may be ineffective due to the myriad of other contributing factors that can affect combustion and the production of unwanted by-products. precise
Boilers for various different operating states may also require different computer models, requiring many different computer models to control the operation of the boiler in all different operating states, and adding to the complexity
Method used
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[0019] Exemplary embodiments incorporating one or more aspects of the present invention are described and illustrated in the accompanying drawings. These illustrated examples are not intended to limit the invention. For example, one or more aspects of the invention may be utilized in other embodiments and even other types of devices. Furthermore, certain terms are used herein for convenience only and are not to be considered as limitations of the invention. In addition, in the drawings, the same reference numerals are used to designate the same elements.
[0020] exist figure 1 An exemplary embodiment of a power generation system 10 is schematically shown in . As shown, in the exemplary embodiment, power generation system 10 includes a boiler 12 coupled to a steam turbine-type generator 14 . The steam produced in boiler 12 then flows through steam pipe 16 to generator 14, which is driven by the steam to generate electrical power. Boiler 12 burns a combustible fossil fuel,...
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A method of optimizing operation of a furnace to control emission within a system. Each furnace zone inside of the furnace is associated with at least one exhaust zone. A signal indicative of an amount of byproduct exiting the furnace through at least one of the exhaust zones is received from one or more of the sensors. Based on this signal, an offending furnace zone is identified from among the plurality of furnace zones, the offending furnace zone including an oxygen level contributing to the amount of the byproduct. A relative adjustment of at least one of an amount of oxygen being introduced into the offending furnace zone, and an angular orientation of an oxygen injector introducing oxygen into the offending furnace zone relative to a focal region within the furnace can be initiated. The furnace may have structure to perform the method and may be part of a system.
Description
technical field [0001] The present invention relates to methods and apparatus for controlling the operation of furnace-based systems, and in particular to methods and apparatus for utilizing one or more undesired secondary The concentration of the products is linked to the state of combustion in the primary zone within the furnace to optimize combustion within the furnace to minimize the evolution of unwanted by-products. Background technique [0002] Typically, tangentially fired ("T-fired") boilers include a furnace in which a combination of combustible fuel and air is combusted to produce heat for generating steam that can be used for any desired purpose, such as driving a steam turbine to generate electricity, for example. Combustible fuel and air are introduced into the horizontal furnace plane within the furnace from a plurality of locations around the perimeter of the furnace in such a manner that the fuel and air are directed tangentially to a focal area in the furn...
Claims
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IPC IPC(8): F23C5/32F23C6/04F23N5/00F23N3/00F23L9/04
CPCF23C6/045Y02E20/344F23L9/04F23N2041/10F23N3/002F23N2037/16F23C2201/101F23N5/003F23C5/32F23L7/007F23N2900/05001F23N2237/16F23N2241/10Y02E20/34
Inventor 徐光N.C.维默
Owner GENERAL ELECTRIC CO