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Temperature rising system and method for controlling self-starting of deaerator based on data model

A data model, deaerator technology, applied in control systems, chemical instruments and methods, auxiliary controllers with auxiliary heating devices, etc., can solve the problems of low heating efficiency, water impact, long time consumption, etc., to reduce fuel consumption , good deoxygenation effect, reduce the effect of starting time-consuming

Active Publication Date: 2021-06-29
XIAN THERMAL POWER RES INST CO LTD
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AI Technical Summary

Problems solved by technology

Realized the automatic start-up of the whole process of deaerator steam-water system heating, and solved the problems of water impact, low heating efficiency, and long time consumption in the deaerator steam-water system during the unit startup and heating process

Method used

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  • Temperature rising system and method for controlling self-starting of deaerator based on data model

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] refer to figure 1 , a kind of method based on data model of the present invention controls deaerator system self-starting heating technology, comprises deaerator temperature temperature rise expert function curve F (x1) module 1, deaerator temperature AI module 2, deaerator Steam heating control valve instruction expert function curve F(x2) module 3, time-based open-loop control instruction module 4, deaerator steam heating control valve feedback module 5, input automatic control deaerator heating module 6, coefficient k module 7, Subtraction module 8, multiplication module 9, addition module 10, switching module 11, deaerator steam heating control valve instruction output module 12.

[0025] By using Matlab (R2019b) to summarize and analyze the data of multiple manual deaerator heating and starting processes, the specific point value ranges of the st...

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Abstract

A temperature rise system and method for controlling self-starting of a deaerator based on a data model comprises a deaerator temperature rise expert curve module, the deaerator temperature rise expert function curve module is connected with a subtraction module, a deaerator temperature AI module is connected with the subtraction module, the output of the subtraction module is connected with a multiplication module, and a coefficient k module is connected with the multiplication module. The output of the multiplication module is connected with the addition module, the deaerator steam heating control valve instruction expert function curve module is connected with the addition module, the time-based open-loop control instruction module is connected with the addition module, the output of the addition module is connected with the switching module, and the deaerator steam heating control valve feedback module is connected with the switching module. The automatic control deaerator heating module is connected with the switching module, and the output of the switching module is connected with the deaerator steam heating control valve instruction output module. Oil consumption, water consumption and coal consumption indexes are greatly reduced, unit starting time consumption is reduced, and the purposes of energy conservation, efficiency improvement and unattended operation are achieved.

Description

technical field [0001] The invention relates to the technical field of thermal power generation, in particular to a temperature raising system and method for controlling the self-starting of a deaerator based on a data model. Background technique [0002] The heating process of the deaerator steam-water system in a thermal power plant is an important link in the boiler feed water treatment process. When the unit starts the deaerator steam-water system, the overall heating process has lag, time-varying, non-linear and certain control characteristics such as difficulty and risk. [0003] At present, most thermal power plants use operators to manually input the deaerator heating system. Due to the different operating experience of the operators, it directly affects the operation time of the deaerator heating system, prolonging the start-up time of the unit; and a small number of design one-button start and stop Technology (APS) thermal power plants use time-based open-loop con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/32F22B35/00F22D1/50
CPCG05D23/32F22D1/50F22B35/00
Inventor 辛志波谭祥帅李昭宋晓辉陈辰刘世雄王涛寇林谈博
Owner XIAN THERMAL POWER RES INST CO LTD
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