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Boiler combustion optimization system and method based on CFD numerical simulation and intelligent modeling

A technology of boiler combustion and numerical simulation, used in the control of combustion, lighting and heating equipment, etc.

Active Publication Date: 2018-02-23
SOUTHEAST UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

In addition, the existing manual air distribution mode has a certain time lag, and the grid load command is constantly changing, which requires an air distribution adjustment system that can respond quickly to load changes

Method used

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  • Boiler combustion optimization system and method based on CFD numerical simulation and intelligent modeling
  • Boiler combustion optimization system and method based on CFD numerical simulation and intelligent modeling
  • Boiler combustion optimization system and method based on CFD numerical simulation and intelligent modeling

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Embodiment Construction

[0023] The specific implementation will be further described below in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, the system includes DCS control system interface, CFD computing cluster, sample database cluster, intelligent modeling cluster, central processing cluster and man-machine interface. Among them, the DCS control system interface and the CFD computing cluster respectively transmit the historical operation samples and CFD simulation samples to the sample database cluster through the information transmission network and save them; the intelligent modeling cluster calls the data stored in the sample database cluster and selects intelligent algorithms to build model, and transmit the boiler thermal efficiency prediction model and NOx emission prediction model to the central processing cluster; while receiving the model, the central processing cluster invokes the parameters of the real-time operation of the boiler in the DCS control syst...

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Abstract

The invention discloses a boiler combustion optimization system and method based on CFD numerical simulation and intelligent modeling. The boiler combustion optimization system comprises a DCS controlsystem interface, a CFD computing cluster, a sample database cluster, an intelligent modeling cluster, a central processing cluster and a human-computer interface. Real-time matching of the optimal air distribution types of the unit along with variation of network load instructions, coal as fired quality characters and excess air coefficients by storing, modeling and optimizing a CFD simulation sample and a history running sample. The modeling accuracy is improved by using a CFD numerical simulation technology, a DCS control system can be directly called to realize closed-loop control in optimization, the air distribution way is enabled to quickly respond to the load change, and the unit combustion heat efficiency and the NOx emission are optimized in a real-time manner.

Description

technical field [0001] The invention relates to an industrial boiler combustion optimization system, in particular to a boiler combustion optimization system and method based on CFD numerical simulation and intelligent modeling. Background technique [0002] As the country's environmental protection requirements for thermal power units are becoming increasingly stringent, how to improve the combustion efficiency of boilers as much as possible under the premise of meeting the requirements of pollution emissions has become a common problem faced by domestic thermal power units. As an important adjustment method in the combustion process of thermal power units, air distribution regulation is an important factor affecting the thermal efficiency of boilers and the generation of pollutants. Therefore, how to better adjust the air distribution method has become the top priority of improving boiler thermal efficiency and reducing pollutants. Under the existing circumstances, most u...

Claims

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Application Information

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IPC IPC(8): F23N5/00
CPCF23N5/00F23N2223/42
Inventor 石岩钟文琪陈曦刘燮
Owner SOUTHEAST UNIV
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