A temperature raising system and method for controlling self-starting of deaerator based on data model
A technology of data model and deaerator, applied in control system, chemical instrument and method, auxiliary controller with auxiliary heating device, etc., can solve the problems of low heating efficiency, water impact, long time consumption, etc., and reduce fuel consumption , good oxygen removal effect, and reduce the time-consuming effect of starting
Active Publication Date: 2022-04-08
XIAN THERMAL POWER RES INST CO LTD
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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
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[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 control deaerator system self-starting heating technology of the present invention, comprises deaerator temperature temperature rise expert function curve F1 (t) module 1, deaerator temperature AI module 2, deaerator Steam heating control valve instruction expert function curve F2 (t) 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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A temperature raising system and method for controlling the self-starting of a deaerator based on a data model, including a deaerator temperature rise expert curve module, a deaerator temperature rise expert function curve module connected with a subtraction module, and a deaerator temperature AI module connected with a subtraction module Connection, the subtraction module output is connected to the multiplication module, the coefficient k module is connected to the multiplication module, the multiplication module output is connected to the addition module, the deaerator steam heating control valve command expert function curve module is connected to the addition module, and the time-based open-loop control command module Connect with the addition module, the output of the addition module is connected with the switching module, the feedback module of the deaerator steam heating control valve is connected with the switching module, the automatic control of the deaerator heating module is connected with the switching module, the output of the switching module is connected with the deaerator steam heating control Valve command output module connection. The invention greatly reduces the indicators of fuel consumption, water consumption and coal consumption, reduces the start-up time of the unit, and achieves the goals of energy saving, efficiency enhancement and unattended operation.
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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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