CN108224393B - Intelligent waste heat boiler optimal control method - Google Patents
Intelligent waste heat boiler optimal control method Download PDFInfo
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- CN108224393B CN108224393B CN201810016451.2A CN201810016451A CN108224393B CN 108224393 B CN108224393 B CN 108224393B CN 201810016451 A CN201810016451 A CN 201810016451A CN 108224393 B CN108224393 B CN 108224393B
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- Prior art keywords
- waste heat
- heat boiler
- drum
- control method
- detection data
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/46—Applications, arrangements, or dispositions of alarm or automatic safety devices responsive to low or high water level, e.g. for checking, suppressing, extinguishing combustion in boilers
Abstract
The present invention provides a kind of intelligent waste heat boiler optimal control method, comprising: the periphery instrument for detecting waste heat boiler obtains detection data；According to the detection data judge the waste heat boiler whether be in MANUAL CONTROL mode and the waste heat boiler operating status it is whether normal；And if the waste heat boiler is in MANUAL CONTROL mode and the operating status of the waste heat boiler is normal, the detection data and the setting value as automatic control loop is recorded, the automatic control mode of the waste heat boiler is optimized.Intelligent waste heat boiler optimal control method of the invention is to can store a large amount of real-time detector datas and record to preferable control information is run under every class operating condition, as the setting value of automatic control loop under such operating condition, to be continued to optimize to automatic control mode, improve the adaptive ability of waste heat boiler control system, ensure that the work of waste heat boiler control system is in stable state always, and then reduces artificial input cost.
Description
Technical field
It is the present invention relates to metallurgy manufacture and design field, in particular to a kind of based on the intelligence for smelting big data analysis
Waste heat boiler optimal control method.
Background technique
Waste heat boiler is key link indispensable in smelting process as a kind of energy conservation, emission abatement device, is mainly made
With being that the flue gas for generating furnace body in smelting process cools down, while the heat that flue gas cool-down link discharges is used to generate steaming
Vapour, steam are used for other production processes again.Waste heat boiler operation stability be directly related to smelting process operating rate and
The reliability service of subsequent related system.
The data-signal in waste heat boiler is acquired and has been controlled in existing smelting industry, be related to information content compared with
Greatly, more important detection parameters use PID control: such as liquid level of steam drum is modified liquid level using three impulses calculating laggard
Row control, drum pressure judge that quantity of steam is controlled according to smoke temperature change, it is ensured that drum is pacified during production run
It is complete reliable.Meanwhile being controlled between equipment using interlocking and system setting: such as circulating pump carries spare, and rapping apparatus is fixed
Shi Qidong.
The front end smelting procedure of waste heat boiler generates flue gas and circulation water supplying pump carries out heat exchange, resulting carbonated drink
It closes object and carries out steam-water separation in drum, for reusing, steam is sent to remaining process water.Due to being run in Practical Project
Cheng Zhong, front end smelting procedure operating condition (such as start, stop, normal, feeding quantity changes) change often, cause flue
Interior exhaust gas volumn, quantity of steam, water variation frequently, often because information content does not cause to control automatically entirely in waste heat boiler control system
System imbalance.In order to ensure the safe operation of integrated engineering, generally use at this time and manually control substitution and automatically control, artificial investment compared with
More, automation utilization rate is lower.
Summary of the invention
It can be based on smelting big data analysis to automatic in view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide one kind
The intelligent waste heat boiler Optimal Control System that control model is continued to optimize.
To achieve the above object, the present invention adopts the following technical scheme that:
A kind of intelligence waste heat boiler optimal control method, comprising:
The periphery instrument for detecting waste heat boiler, obtains detection data；
Judge whether the waste heat boiler is in MANUAL CONTROL mode and the waste heat boiler according to the detection data
Operating status it is whether normal；And
If the waste heat boiler is in MANUAL CONTROL mode and the operating status of the waste heat boiler is normal, institute is recorded
Detection data and the setting value as automatic control loop are stated, the automatic control mode of the waste heat boiler is carried out excellent
Change.
In an embodiment of intelligent waste heat boiler optimal control method of the invention, the waste heat boiler includes remaining
Heat boiler drum, the waste heat boiler flue being connected to the waste heat boiler drum and following to waste heat boiler flue water supply
Ring pump, the periphery instrument includes: the regulating valve connecting with the waste heat boiler drum, for controlling the waste heat boiler drum
Liquid level；The fluid level transmitter being connect with the waste heat boiler drum, for detecting the liquid level of the waste heat boiler drum；With institute
The pressure transmitter for stating the connection of waste heat boiler drum, for detecting the pressure of the waste heat boiler drum；With the waste heat
The temperature element of boiler flue connection, for detecting and the flue-gas temperature of the waste heat boiler flue；With the waste heat boiler cigarette
The rapping apparatus of road connection, for removing the dust of the waste heat boiler flue；The control cabinet connecting with the circulating pump, is used for
Control loop pump；The drum feedwater flow transmitter being connect with the waste heat boiler drum, for detecting confluent；And with institute
The drum steam (vapor) outlet flow transmitter for stating the connection of waste heat boiler drum, for detecting steam flow.
In the another embodiment of intelligent waste heat boiler optimal control method of the invention, according to the regulating valve,
The detection data of the rapping apparatus and the circulating pump control cabinet judges whether the waste heat boiler is in MANUAL CONTROL mode.
In the another embodiment of intelligent waste heat boiler optimal control method of the invention, according to the level transmitting
Device, the pressure transmitter, the temperature element, the drum feedwater flow transmitter and the drum steam (vapor) outlet flow become
The detection data of device is sent to judge whether the operating status of the waste heat boiler is normal.
In the another embodiment of intelligent waste heat boiler optimal control method of the invention, the waste heat pot is being judged
Furnace whether be in MANUAL CONTROL mode and the waste heat boiler operating status it is whether normal before, further include that transmission is described remaining
The operating condition of the front end smelting procedure of heat boiler, and classify to the operating condition.
In the another embodiment of intelligent waste heat boiler optimal control method of the invention, by the operating condition according to opening
It is dynamic, stop, normal classifying with abnormal.
It further include single choice one kind work in the another embodiment of intelligent waste heat boiler optimal control method of the invention
Condition judges whether the waste heat boiler is in MANUAL CONTROL mode and whether the operating status of the waste heat boiler is normal.
In the another embodiment of intelligent waste heat boiler optimal control method of the invention, to the detection data into
Row multiple repairing weld.
In the another embodiment of intelligent waste heat boiler optimal control method of the invention, to the detection data
Sampling number is judged: if the sampling number is not up to a preset times, continuing to sample；And it is if described
Sampling number reaches the preset times, then the detection data of multiple repairing weld is averaged using as the setting value, and will work as
Preceding sampling number is changed to zero.
In the another embodiment of intelligent waste heat boiler optimal control method of the invention, if the waste heat boiler
In automatic control mode, then the operating condition of the waste heat boiler is monitored, and modify according to the setting value and automatically control mould
Parameter preset in formula.
Intelligent waste heat boiler optimal control method of the invention is can store a large amount of real-time based on big data analysis is smelted
Detection data is simultaneously recorded to running preferable control information under every class operating condition, as automatically controlling back under such operating condition
The setting value on road improves the adaptive ability of waste heat boiler control system, it is ensured that remaining to continue to optimize to automatic control mode
The work of hot pot furnace control system is in stable state always, and then reduces artificial input cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the intelligent waste heat boiler Optimal Control System of one embodiment of the present invention；
Fig. 2 is the flow chart of the intelligent waste heat boiler optimal control method of one embodiment of the present invention.
Wherein, the reference numerals are as follows:
1: waste heat boiler
2: front end smelting procedure
3: waste heat boiler flue
4: circulating pump
5: water process
6: rear end process
7: waste heat boiler drum
8: regulating valve
9: fluid level transmitter
10: pressure transmitter
11: front end process controller
12: temperature element
13: rapping apparatus
14: control cabinet
15,16: flow transmitter
17: waste heat boiler controller
171: communication module
172: receiving module
173: control module
174: operating condition discriminating module
175: monitoring module
176: analysis module
177: history module
Specific embodiment
Below according to specific embodiment, technical scheme is described further.Protection scope of the present invention is unlimited
In following embodiment, these examples are enumerated merely for exemplary purpose without limiting the invention in any way.
Fig. 1 is the structural schematic diagram of the intelligent waste heat boiler Optimal Control System of one embodiment of the present invention, such as Fig. 1 institute
Show, intelligent waste heat boiler Optimal Control System includes: the waste heat boiler 1 comprising waste heat boiler drum 7, to front end smelting procedure 2
Operating condition the front end process controller 11, waste heat boiler flue 3, circulating pump 4 and the waste heat boiler controller 17 that are monitored.
The high-temperature flue gas that front end smelting procedure 2 generates ascends into waste heat boiler flue 3 first, while water process 5 is logical
It crosses circulating pump 4 and provides cooling water to waste heat boiler flue 3, high-temperature flue gas and cooling water carry out heat inside waste heat boiler flue 3
Exchange, generated carbonated drink supply to waste heat boiler drum 7.
Waste heat boiler drum 7 obtains steam and water after carrying out separating treatment to carbonated drink, and wherein steam is provided to rear end process
6, to carry out subsequent applications, such as steam-electric power, and water can be carried out again in circulating pump 4 by regulating valve 8, to be recycled.
Waste heat boiler is the complication system that a multi input, multi output and every control parameter intercouple, steam water-level
It is the very important controlled variable of afterheat boiler system, and the variation of steam water-level is usually related with the variation of drum pressure, because
This, is arranged the fluid level transmitter 9 and pressure transmitter 10 connecting with waste heat boiler drum 7, wherein liquid on waste heat boiler drum 7
Position transmitter 9 is for detecting liquid level of steam drum, and pressure transmitter 10 is for detecting drum pressure, thus in process of production by drum
Pressure controls in a certain range.
The periphery setting temperature element 12 of waste heat boiler flue 3 is to prevent flue dust in flue to detect flue temperature
Interior accumulation also sets up rapping apparatus 13 to be dusted to flue.
Circulating pump 4 is used to control the flow to supply water to waste heat boiler flue 3, is connected with water process 5, and by control cabinet
14 are controlled.
The liquid level that regulating valve 8 controls waste heat boiler drum is set between waste heat boiler drum 7 and circulating pump 4, and liquid level is higher
When the water in waste heat boiler drum 7 can be transmitted in circulating pump 4, to realize recycling.
Flow transmitter 15 (drum feedwater flow transmitter) is set between circulating pump 4 and water process 5, to detect water supply
Amount.Flow transmitter 16 (drum steam (vapor) outlet flow transmitter) is set between waste heat boiler drum 7 and rear end process 6, with inspection
Survey exported steam flow.
Whether waste heat boiler controller 17 is used to judging waste heat boiler 1 in MANUAL CONTROL mode and waste heat boiler 1
Whether operating status is normal, stores the detection data of waste heat boiler periphery instrument according to judging result and to the automatic of waste heat boiler
Control model optimizes.
Waste heat boiler periphery instrument includes above-mentioned regulating valve 8, fluid level transmitter 9, pressure transmitter 10, temperature element
12, rapping apparatus 13, control cabinet 14, drum feedwater flow transmitter 15 and drum steam (vapor) outlet flow transmitter 16.
As shown in Figure 1, waste heat boiler controller 17 includes communication module 171, receiving module 172, control module 173, work
Condition division module 174, monitoring module 175, analysis module 176 and history module 177, wherein communication module 171 connects
Operating condition division module 174, monitoring module 175 connect receiving module 172, control module 173 and analysis module 176, history note
It records module 177 and connects operating condition division module 174, monitoring module 175 and analysis module 176.
The floor data of 171 receiving front-end process controller 11 of communication module transmission, later by floor data to operating condition point
Area's module 174, operating condition division module 174 classifies the operating condition of front end smelting procedure 2 according to floor data, such as can be divided into
Starting, stopping, normal, abnormal etc., can also classify according to front end process feeding quantity, to carry out not to different classes of operating condition
Same detection and data analysis.
It should be noted that " operating condition " in the present invention refers to the fortune of equipment or material under the course of work in a certain process
Row state, can be monitored and data collection in several ways.
Monitoring module 175 is managed collectively the data in receiving module 172, control module 174.
Receiving module 172 is used to receive detection data (regulating valve 8, fluid level transmitter 9, the pressure of waste heat boiler periphery instrument
Power transmitter 10, temperature element 12, rapping apparatus 13, control cabinet 14, drum feedwater flow transmitter 15, drum steam (vapor) outlet stream
Transmitter 16), it will test data later and be transmitted to monitoring module 175, monitoring module 175 is according to regulating valve 8, rapping apparatus 13
Judge whether waste heat boiler 1 is in MANUAL CONTROL mode with the detection data of control cabinet 14, and according to fluid level transmitter 9, pressure
The detection data of transmitter 10, temperature element 12, drum feedwater flow transmitter 15 and drum steam (vapor) outlet flow transmitter 16
Judge whether the operating status of waste heat boiler 1 is normal.
Control module 173 then receives the data from monitoring module 175 and to relevant device (regulating valve 8, rapping apparatus 13
With control cabinet 14) it is controlled, such as valve 8, rapping apparatus 13 and control cabinet can be controlled to adjust under the instruction of monitoring module 175
14 are adjusted accordingly.
History module 177 receives the floor data from operating condition division module 174 simultaneously and comes from monitoring module
175 detection data, and by its real-time record storage, it is transmitted to analysis module 176 later, analysis module 176 carries out data
Comparison and monitoring module 175 is re-transmitted to after calculating, so that monitoring module 175 can be according to the data after calculating to control module
173 send regulating command.
When the operating status that waste heat boiler 1 is in MANUAL CONTROL mode and waste heat boiler 1 is normal, history module
177 detection datas recorded can be used as the set point feedback of automatic control loop under a kind of operating condition to automatic control system, after
Continuing can be using these setting value as parameter optimization automatic control mode.
Fig. 2 is the flow chart of the intelligent waste heat boiler optimal control method of one embodiment of the present invention, as shown in Fig. 2,
Using above-mentioned intelligent waste heat boiler Optimal Control System, intelligent waste heat boiler optimal control method includes:
Step S101 detects periphery instrument (regulating valve 8, fluid level transmitter 9, pressure transmitter 10, the survey of waste heat boiler 1
Warm element 12, rapping apparatus 13, control cabinet 14, drum feedwater flow transmitter 15 and drum steam (vapor) outlet flow transmitter
16) relevant parameter, obtains detection data, and the operating condition of the front end smelting procedure 2 of waste heat boiler 1 is obtained by communication module 171.
Step S102, applying working condition discriminating module 174 classify the different data of the operating condition of front end process, such as can
Operating condition is classified according to starting, stopping, normal and exception, is transmitted to 177 real-time storage of history module later.
Step S103, single choice one kind operating condition, according to detection data received by receiving module 172, monitoring module 175 is sentenced
Whether disconnected waste heat boiler 1 is in MANUAL CONTROL mode, such as can be according to regulating valve 8, the detection of rapping apparatus 13 and control cabinet 14
Data are judged.
If monitoring module 175 judges that waste heat boiler 1 is in MANUAL CONTROL mode in step S103, step S104 is carried out,
According to detection data received by receiving module 172, monitoring module 175 judges whether the operating status of waste heat boiler 1 is normal,
Such as it can be according to fluid level transmitter 9, pressure transmitter 10, temperature element 12, drum feedwater flow transmitter 15 and drum steam
The detection data of rate of discharge transmitter 16 judged, that is, judge liquid level of steam drum, drum pressure, flue temperature etc. whether
In normal range (NR), thus the reliability that judgement manually controls every time.
If monitoring module 175 judges that the operating status of waste heat boiler 1 is normal in step S104, step S105 is carried out, is remembered
The control data (including above-mentioned detection data) for recording current waste heat boiler 1 carry out multiple repairing weld to detection data.
One preset times can be set for the number of sampling, for example, 5 times, 8 times, it is 10 inferior, carry out step in sampling
S106 judges the sampling number of detection data, if sampling number is not up to preset times, repeatedly step S105,
Continue to sample, if sampling number has reached the preset times, continue step S107, by the detection of multiple repairing weld
Data are averaged using the setting value as automatic control loop under such operating condition and feed back to intelligent waste heat boiler optimal control
In system, while present sample number is changed to zero, facilitates the continuous acquisition and optimization of data.
It is straight after step S104 if monitoring module 175 judges that the operating status of waste heat boiler 1 is abnormal in step S104
Row step S108 is tapped into, the operating condition that monitoring module 175 monitors waste heat boiler 1 in real time is continued through, to by manually to setting
After being adjusted, then judgement is re-started to the operating status of waste heat boiler 1, if the fortune of judgment result displays waste heat boiler 1
Row state becomes normally, then can proceed with step S105-S107, on the contrary then repeat step S108 and S104.
In addition, if monitoring module 175 judges that waste heat boiler 1 is not on MANUAL CONTROL mode in step S103, but locate
In automatic control mode, then step S109 is carried out, monitors the operating condition of waste heat boiler in real time by monitoring module 175, simultaneously
According to the parameter preset in the setting value modification automatic control mode generated in step S107, to continue to optimize automatic control mould
Formula.
In conclusion intelligent waste heat boiler optimal control method of the invention is based on smelting big data analysis, Ke Yicun
It stores up a large amount of real-time detector datas and is recorded to preferable control information is run under every class operating condition, as under such operating condition
The setting value of automatic control loop improves the adaptive of waste heat boiler control system to continue to optimize to automatic control mode
Ability, it is ensured that the work of waste heat boiler control system is in stable state always, and then reduces artificial input cost.
Those skilled in the art should be noted that embodiment described in the invention is only exemplary, can be
Various other replacements, changes and improvements are made in the scope of the present invention.Thus, the present invention is not limited to the above embodiments, and only
It is defined by the claims.
Claims (10)
1. a kind of intelligence waste heat boiler optimal control method characterized by comprising
The periphery instrument for detecting waste heat boiler, obtains detection data；
Judge whether the waste heat boiler is in the fortune of MANUAL CONTROL mode and the waste heat boiler according to the detection data
Whether row state is normal；And
If the waste heat boiler is in MANUAL CONTROL mode and the operating status of the waste heat boiler is normal, the inspection is recorded
Measured data and setting value as automatic control loop, optimize the automatic control mode of the waste heat boiler.
2. intelligence waste heat boiler optimal control method according to claim 1, which is characterized in that the waste heat boiler includes
Waste heat boiler drum, the waste heat boiler flue being connected to the waste heat boiler drum and to the waste heat boiler flue supply water
Circulating pump, the periphery instrument include:
The regulating valve being connect with the waste heat boiler drum, for controlling the liquid level of the waste heat boiler drum；
The fluid level transmitter being connect with the waste heat boiler drum, for detecting the liquid level of the waste heat boiler drum；
The pressure transmitter being connect with the waste heat boiler drum, for detecting the pressure of the waste heat boiler drum；
The temperature element being connect with the waste heat boiler flue, for detecting and the flue-gas temperature of the waste heat boiler flue；
The rapping apparatus being connect with the waste heat boiler flue, for removing the dust of the waste heat boiler flue；
The control cabinet connecting with the circulating pump is pumped for control loop；
The drum feedwater flow transmitter being connect with the waste heat boiler drum, for detecting confluent；And
The drum steam (vapor) outlet flow transmitter being connect with the waste heat boiler drum, for detecting steam flow.
3. intelligence waste heat boiler optimal control method according to claim 2, which is characterized in that according to the regulating valve,
The detection data of the rapping apparatus and the circulating pump control cabinet judges whether the waste heat boiler is in MANUAL CONTROL mode.
4. intelligence waste heat boiler optimal control method according to claim 2, which is characterized in that according to the level transmitting
Device, the pressure transmitter, the temperature element, the drum feedwater flow transmitter and the drum steam (vapor) outlet flow become
The detection data of device is sent to judge whether the operating status of the waste heat boiler is normal.
5. intelligence waste heat boiler optimal control method according to claim 1, which is characterized in that judging the waste heat pot
Furnace whether be in MANUAL CONTROL mode and the waste heat boiler operating status it is whether normal before, further include that transmission is described remaining
The operating condition of the front end smelting procedure of heat boiler, and classify to the operating condition.
6. intelligence waste heat boiler optimal control method according to claim 5, which is characterized in that by the operating condition according to opening
It is dynamic, stop, normal classifying with abnormal.
7. intelligence waste heat boiler optimal control method according to claim 6, which is characterized in that further include single choice one kind work
Condition judges whether the waste heat boiler is in MANUAL CONTROL mode and whether the operating status of the waste heat boiler is normal.
8. intelligence waste heat boiler optimal control method according to claim 1, which is characterized in that the detection data into
Row multiple repairing weld.
9. intelligence waste heat boiler optimal control method according to claim 1, which is characterized in that the detection data
Sampling number is judged:
If the sampling number is not up to a preset times, continue to sample；And
If the sampling number reaches the preset times, the detection data of multiple repairing weld is averaged to set as described
Definite value, and present sample number is changed to zero.
10. intelligence waste heat boiler optimal control method according to claim 1, which is characterized in that if the waste heat pot
Furnace is in automatic control mode, then monitors the operating condition of the waste heat boiler, and modify and automatically control according to the setting value
Parameter preset in mode.
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| CN109847916B (en) * | 2018-12-26 | 2021-01-12 | 厦门邑通软件科技有限公司 | Energy-saving optimization method of cement raw material vertical mill system |
| CN113882922A (en) * | 2021-09-16 | 2022-01-04 | 华润水泥(陆川)有限公司 | Automatic power generation control system of boiler waste heat |
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| CN100368949C (en) * | 2005-04-28 | 2008-02-13 | 南京科远控制工程有限公司 | Automatic control system based on artificial intelligence for heat-engine plant |
| CN201652310U (en) * | 2010-03-02 | 2010-11-24 | 李晓明 | Steam boiler automatic control system |
| CN101881563B (en) * | 2010-07-02 | 2012-05-23 | 清华大学 | Multi-area intelligent online optimizing control method for thermal efficiency of heating furnace |
| CN102193532B (en) * | 2010-10-26 | 2012-10-24 | 上海迪吉特控制系统有限公司 | Automatic start-up and shut-down optimization control system of heat-engine plant unit plant |
| CN104516339B (en) * | 2014-12-20 | 2017-07-14 | 蓝星（北京）技术中心有限公司 | The method and optimized production operation system of Optimization of Chemical Batch Process operation |
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