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A storage energy quantification method for a supercritical circulating fluidized bed boiler unit

A circulating fluidized bed and boiler unit technology, which is applied in design optimization/simulation, special data processing applications, etc., can solve the problems of slow response on the fuel side and the difficulty of main steam pressure control, and achieve the effect of convenient engineering application.

Inactive Publication Date: 2020-01-24
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The world's first 600MW supercritical CFB boiler was put into operation in Baima, Sichuan in 2013. Compared with subcritical CFB boilers, supercritical CFB boilers have improved power supply efficiency, but the load response to the fuel side is slower, and the main steam pressure control is extremely difficult. increase

Method used

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  • A storage energy quantification method for a supercritical circulating fluidized bed boiler unit
  • A storage energy quantification method for a supercritical circulating fluidized bed boiler unit
  • A storage energy quantification method for a supercritical circulating fluidized bed boiler unit

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Embodiment 1

[0038] A method for quantifying the energy storage of a supercritical circulating fluidized bed boiler unit, comprising the following steps:

[0039] S1 uses the supercritical CFB boiler energy storage modeling module to establish a CFB boiler fuel side and steam water side energy storage model;

[0040] S2 uses the data selection and preprocessing module to select from the DCS system and the database the historical operation data with frequent dynamic changes in unit load under different load segments;

[0041] S3 establishes energy storage models on the fuel side and the steam-water side of the supercritical CFB boiler according to step S1, and utilizes

[0042] The data selected in S2 obtains the parameters in the energy storage model under different load segments to determine the energy storage capacity;

[0043] The energy storage observation module of the supercritical CFB boiler in S4 conducts quantitative observation on the energy storage of the supercritical CFB unit...

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Abstract

The invention belongs to the technical field of power station boiler performance operation state analysis, and relates to an energy storage quantization method of a supercritical circulating fluidized bed boiler (CFB) unit. The method comprises the following steps: establishing a model for the energy storage of a supercritical CFB boiler unit, and utilizing the historical data of the unit to determine an energy storage parameter in a supercritical CFB boiler energy storage model; according to the supercritical CFB boiler energy storage model of which the energy storage parameter is determined, combining with the real-time data of the unit to observe the energy storage of the unit. The invention provides the energy storage quantization method of the supercritical CFB boiler unit, an energy storage transition situation in a dynamic process of the CFB boiler unit can be made clear, and a unit control level is improved.

Description

technical field [0001] The invention belongs to the technical field of analyzing the performance and running state of a boiler in a power station, and relates to a storage quantification method for a supercritical circulating fluidized bed boiler unit. Background technique [0002] Circulating Fluidized Bed (CFB) combustion technology is the technology with the most commercialization potential and the lowest pollution emission control cost among clean coal technologies. Its coal type has strong adaptability, and it is the most effective means to absorb a large amount of coal gangue and coal slime. At present, the total installed capacity of CFB boiler units in my country is about 91,000MW, accounting for 12.1% of the total installed capacity of thermal power. [0003] One of the core contents of the optimal control of thermal power unit operation is to fully tap and comprehensively utilize the energy storage in the unit. A large amount of heat is stored in the entire therm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 高明明洪烽刘吉臻杨婷婷李丞亮陈峰
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)