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Coordinated control system (CCS) of large-size circulating fluidized bed boiler (CFBB) unit

A technology of coordinated control system and circulating fluidized bed, applied in fluidized bed combustion equipment, comprehensive factory control, comprehensive factory control, etc., can solve the problems of difficult automatic adjustment, many control variables, and many disturbances.

Active Publication Date: 2010-07-28
HANGZHOU HOLLYSYS AUTOMATION
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Problems solved by technology

[0004] However, the control of circulating fluidized bed boilers is different from pulverized coal furnaces and chain furnaces. The circulating fluidized bed boiler system is complex, with many control variables, strong correlation coupling, large hysteresis, and many disturbances. It is very difficult to automatically adjust boilers, and the coordinated control of CFBB units has been a difficult problem for many years

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  • Coordinated control system (CCS) of large-size circulating fluidized bed boiler (CFBB) unit
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  • Coordinated control system (CCS) of large-size circulating fluidized bed boiler (CFBB) unit

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[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] A large-scale circulating fluidized bed boiler (CFBB) unit coordination control system (CCS), is made up of computer algorithm implementation logic and human-machine interface (HMI); described computer algorithm implementation logic mainly CCS adjustment system and MCS adjustment system, According to the input parameters, it performs data processing and executes corresponding logic operations, and outputs machine furnace coordinated control commands to each closed-loop control system of the distributed control system (DCS); the HMI provides operators with instructions for lower-level control equipment The interactive man-machine interface consists of two parts: CCS operation control panel and parameter setting panel.

[0034] attached figure 1 It is a block diagram of the CCS regulation system flow chart designed in combination with the characte...

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Abstract

The invention discloses a coordinated control system (CCS) of a large-size circulating fluidized bed boiler (CFBB) unit, consisting of a computer algorithm realization program and a human-machine interface program (HMI). The computer algorithm realization program mainly processes data and executes corresponding logical operation according to input parameters and outputs a turbine and boiler coordinated control instruction to various closed loop control systems of a dispersion control system (DCS). The HMI provides a human-machine interface which carries out instruction interaction with low-layer control equipment for a running operator and consists of a CCS operation interface and a parameter resetting panel. The system mainly achieves the coordinated control function of the CFBB unit andthe aims of completely and automatically controlling the generation process of the CFBB unit and reducing the labor intensity and economic running of the running operators.

Description

technical field [0001] The invention relates to a large-scale thermal power plant that adopts a circulating fluidized bed boiler (CFBB) unit unit, realizes the coordinated control of the CFBB and the steam turbine, and realizes the automation of the power generation process of the CFBB unit. Background technique [0002] At present, with the continuous development of my country's national economy, the demand for energy is increasing, and industrial enterprises have a strong demand for heat sources and electricity. In my country's energy reserves, oil reserves are relatively small, coal reserves are relatively large, and low-quality coal accounts for a relatively large proportion of coal reserves. The country's development is facing energy shortages and pollution caused by coal burning, making traditional chain furnaces and pulverized coal Furnace technology has been greatly challenged. The new circulating fluidized bed combustion technology can well solve the problems of coa...

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Application Information

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IPC IPC(8): G05B19/418F23C10/28
CPCY02P90/02
Inventor 郭敏李锐成熊辉寇怀成赵立军马维
Owner HANGZHOU HOLLYSYS AUTOMATION
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