CN101701719A - Best combustion coal-saving power generation controlling method in thermal power plant and device thereof - Google Patents
Best combustion coal-saving power generation controlling method in thermal power plant and device thereof Download PDFInfo
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Abstract
The invention discloses a best combustion coal-saving power generation controlling method in a thermal power plant and a device thereof, belonging to the field of thermal power generation control technology. The method comprises the steps: (1) synchronously acquiring real-time data and image of combustion information and operation condition information; (2) analyzing and optimizing the combustion information and the operation condition information; (3) confirming the best combustion working condition information and the best combustion flame information; (4) generating the best combustion coal-saving power generation controlling scheme; and (5) implementing the best combustion coal-saving power generation controlling scheme. The device is provided with a coal-saving power generation controlling decision making system (50) which consists of an industrial personal computer or a distributed control system and an application software functional module (A), thus realizing automatic generation of the best combustion coal-saving power generation controlling scheme. Compared with the prior art, the invention can provide the best combustion coal-saving power generation control in real time under the condition of different coal quality and loads, thus reducing the coal consumption and the emission of combustion.
Description
Technical field
The present invention relates to thermal power generation control technology field, particularly a kind of best combustion coal-saving power generation controlling method in thermal power plant and device thereof.
Background technology
At present domestic supply of electric power is mainly based on thermoelectricity.According to China Power netting index certificate, with 1-6 month in 2008 be example, nationwide above power plant generated energy is 16803.19 hundred million kilowatt hours, wherein thermoelectricity is 144149.83 hundred million kilowatt hours.The thermal power plant need consume a large amount of coals when operation.China generally speaking, the unit standard coal consumption of one 12.5 ten thousand kW is 380g/kWh, the standard gross coal consumption rate of one 300,000 kW unit is 330g/kWh.The standard of advanced country's 300,000 kW units only is the coal consumption level about every kilowatt hour 300 grams, and as seen, the coal consumption of Power Plant in China has bigger consumption reduction space.Effectively reduce gross coal consumption rate, all be significant for thermal power plant energy-saving and emission-reduction and reduction operating cost.
Do not see systematic Study at present both at home and abroad as yet for the boiler combustion pattern.Research for furnace flame image combustion mode, rarely seen document [1], wherein the flame characteristic of typical corner tangential firing is studied, the measure of real-time fired state characteristic parameter of some reflections and pattern-recognition has been proposed, but the pattern of failing further to propose coal supply and air intake is studied, and also fails to propose concrete burning control measure.
Domestic the research of coal combustion is mainly concentrated on the research of flame temperature field, its purpose mainly is to carry out flame thermometric and boiler combustion diagnosis, to improve boiler structure or air intake mode, as in document [2].
Setting up charge level temperature field by the blast furnace infrared image is to judge the gas fluid in blast furnace distributional pattern, to carry out temperature calibration.In document [3], the author has installed 1 cover three-dimensional temperature field visualizing monitor system on 1 670t/h station boiler, with three-dimensional temperature field on-line monitoring in the burner hearth that is applied to combustion diagnosis.In document [4], the author has carried out the three-dimensional temperature field reconstruction on the coal dust trial furnace, carries out the judgement of combustion stability, economy and spatter property simultaneously.
With present technological means, fairly perfect to the detection technique of flame in the burner hearth.In document [5], the author summarizes the flame detection technique, and has narrated the inspection of new digital fire and the image fire inspection technology of current up-to-date employing.
Reaching in the technology of practicability at present, document [6] has been described a kind of based on digital video image processing and image transmission optical fibre, has developed a cover pulverized coal flame surveillance.Record and accident playback to flame provide foundation.In document [7], the application of digital image processing technology on the furnace of power-plant boilers flame treatment summarized, and boiler furnace flame Image Processing technology is set forth in application such as furnace of power-plant boilers temperature field structure, combustion diagnosis and optimization burning controls.Document [8] provides a kind of radiation signal that utilizes as middle controlled quentity controlled variable, with the boiler combustion optimization control reponse system of boiler pressure as the external loop controlled variable, this system also provides fired state synthetic image based on temperature according to flame image in the burner hearth, to offer operations staff's reference.
In sum, domestic research for the existing certain degree of the flame combustion in the burner hearth has certain engineering practice to the burner hearth combustion diagnosis, and temperature monitoring in the burner hearth has been had actual practice test.For burning control certain research is arranged also.But lack systematic Study, and for reducing engineering measure and the relevant therewith research that coal consumption is taked at combustion mode.
Summary of the invention
The invention provides a kind of best combustion coal-saving power generation controlling method in thermal power plant and device thereof, be intended to solve under different atures of coal, the different load condition, by real-time working condition analysis, graphical analysis and analysis of spectrum, determine best combustion coal-saving Generation Control scheme in real time, and implement control corresponding by the operations staff, thereby the attenuating gross coal consumption rate reduces the burning and exhausting amount.
The object of the present invention is achieved like this:
One, best combustion coal-saving power generation controlling method in thermal power plant (abbreviation method)
This method comprises the following steps:
1. the synchronous real time data and the IMAQ of combustion information and operating condition information;
2. the analysis and optimization of combustion information and operating condition information;
3. best combustion work information and best combustion flame information determines;
4. best combustion coal-saving Generation Control scheme generates;
5. best combustion coal-saving Generation Control scheme implementation.
Two, thermal power plant's best combustion coal-saving power generation control (abbreviation device)
This device comprises the signal system and the control executing agency of existing boiler, steam turbine and generator, synchronous real time data and image capturing system, operation and control system and operation monitoring unit;
Be provided with the Generation Control decision system of economizing on coal;
Boiler, the signal system of steam turbine and generator and control executing agency, synchronous real time data and image capturing system, the Generation Control of economizing on coal decision system, the operation monitoring unit, operation and control system and boiler, the signal system of steam turbine and generator and control executing agency closed loop successively connect to form automatic control system, realize boiler, the synchronous real time data and the IMAQ of the combustion information of steam turbine and generator and operating condition information, the analysis and optimization of combustion information and operating condition information, determining of best combustion work information and best combustion flame information, best combustion coal-saving Generation Control scheme generates and best combustion coal-saving Generation Control scheme implementation;
The output attended operation monitor unit input of synchronous real time data and image capturing system, the real time monitoring of realization boiler, steam turbine and generator operating condition;
The output attended operation of the Generation Control of economizing on coal decision system and the input of control system, the real time monitoring of realization best combustion coal-saving Generation Control scheme.
The output attended operation monitor unit input of synchronous real time data and image capturing system, the real time monitoring of realization boiler, steam turbine and generator operating condition;
The output attended operation of the Generation Control of economizing on coal decision system and the input of control system, the real time monitoring of realization best combustion coal-saving Generation Control scheme.
Compared with prior art, the present invention has the following advantages and good effect:
1. under the condition of different atures of coal and different generator outputs, all can provide best combustion coal-saving Generation Control scheme in real time, thereby lower gross coal consumption rate, reduce the burning and exhausting amount;
2. not changing under existing boiler and steam turbine structure and the status of equipment, realize coal combustion scheme the best corresponding, make the Coal-fired capacity minimum with generator output;
3. when ature of coal or generator output change, best combustion coal-saving Generation Control scheme can be carried out the self adaptation adjustment in real time.
4. when existing boiler and steam turbine structure and status of equipment change, best combustion coal-saving Generation Control scheme will be done the self adaptation adjustment.
In a word, the present invention can provide real-time best combustion coal-saving Generation Control under different atures of coal, different load condition, thereby lowers gross coal consumption rate, reduces the burning and exhausting amount.
Description of drawings
Fig. 1 is this method embodiment flow chart;
Fig. 2 is this device example structure block diagram;
Fig. 3 is an application software functional module structure block diagram.
The specific embodiment
Describe in detail below in conjunction with drawings and Examples:
One, best combustion coal-saving power generation controlling method in thermal power plant
Best combustion coal-saving power generation controlling method in thermal power plant embodiment flow chart as shown in Figure 1, as seen from Figure 1:
1,1. described step is the synchronous real time data and the IMAQ 1 of combustion information and operating condition information:
Gather operating condition information in real time from boiler, steam turbine and generator respectively, gather burning image information in real time, and after the mark markers, deposit work information and combustion information in work information storehouse and the classification preservation of combustion information storehouse, send operation monitoring simultaneously from boiler.
Operating condition information and burning image information comprise the information of gathering in real time from senser elements such as image, spectrum, power spectrum, temperature, pressure, voltage, electric current, aperture, position, state.
2,2. described step is the analysis and optimization 2 of combustion information and operating condition information:
Respectively from the work information storehouse and combustion information storehouse sense information carry out performance analysis and graphical analysis, analysis of spectrum and optimization, the foundation that the work information optimized and combustion information are determined as best combustion operating mode and best combustion flame respectively;
Performance analysis is by the exerting oneself and security, economy and the reasonability of boiler, steam turbine and generator operation of generator, and the operating condition of boiler, steam turbine and generator is sorted out and screening, finds out the work information of optimization;
Graphical analysis is that the burning image to boiler carries out numerical analysis and image recognition, seeks out at the boiler temperature of regulation and the characteristics of image and the image of the optimization combustion information under the pressure service condition;
Analysis of spectrum is that the combustion flame to boiler carries out spectrum analysis and power spectrumanalysis, seeks out at the boiler temperature of regulation and the spectral signature and the power spectrum characteristic of the optimization combustion information under the pressure service condition.
3,3. described step is definite 3 of best combustion work information and best combustion flame information:
The best combustion work information determine be when identical target best combustion flame information with optimize the work information pairing, under the boiler temperature and pressure service condition of regulation, combustion conditions information to pairing is carried out security, economy and analysis on its rationality, minimum with the non-comburant of best combustion or discharging is principle, carry out optimal treatment, determine the best combustion work information, as the foundation of best combustion coal-saving Generation Control scheme generation;
The determining of best combustion flame information carries out comprehensive economy and analysis on its rationality to a large amount of optimization combustion information that is provided by graphical analysis and analysis of spectrum, will be under certain boiler temperature and pressure service condition, the characteristics of image of best combustion, the result of the rule spectrum signature complex optimum of the spectral signature of best combustion and best combustion is as best combustion flame information, and the foundation that generates as best combustion coal-saving Generation Control scheme.
4,4. described step is that best combustion coal-saving Generation Control scheme generates 4;
From best combustion operating mode unit and best combustion flame unit, obtain best combustion work information and best combustion flame information, target best combustion work information and best combustion flame information combination are got up when same by the big young pathbreaker of generator output, get rid of labile state in the control procedure or be transformed into the combustion conditions information and the combustion flame information of the transient process state of another state from a state, and carry out running status analysis on its rationality and service condition restriction analysis, under the condition with given generator output, coal combustion non-comburant minimum best or discharging is a principle, determine best combustion coal-saving Generation Control scheme, that is: at given generator output and boiler, under the normal running (operation) conditions of steam turbine, provide the coal input quantity of the non-comburant minimum of coal combustion the best or discharging, intake, the corresponding controlling value of fuel quantities such as porthole aperture, and provide operation monitoring and control to implement.
5,5. described step is best combustion coal-saving Generation Control scheme implementation 5:
According to operation monitoring information and best combustion coal-saving Generation Control scheme, implement best combustion coal-saving Generation Control by operation and control system or operating personnel to boiler, steam turbine and generator.
Two, device
1, overall
As Fig. 2, this device comprises the signal system and the control executing agency 10 of existing boiler, steam turbine and generator, synchronous real time data and image capturing system 20, operation and control system 30 and operation monitoring unit 40;
Be provided with the Generation Control decision system 50 of economizing on coal;
Boiler, the signal system of steam turbine and generator and control executing agency 10, synchronous real time data and image capturing system 20, the Generation Control of economizing on coal decision system 50, operation monitoring unit 40, operation and control system 30 and boiler, closed loop connects to form automatic control system with importing successively in the output of the signal system of steam turbine and generator and control executing agency 10, realizes boiler, the synchronous real time data and the IMAQ of the combustion information of steam turbine and generator and operating condition information, the analysis and optimization of combustion information and operating condition information, determining of best combustion work information and best combustion flame information, best combustion coal-saving Generation Control scheme generates and best combustion coal-saving Generation Control scheme implementation;
Output attended operation monitor unit 40 inputs of synchronous real time data and image capturing system 20, the real time monitoring of realization boiler, steam turbine and generator operating condition;
The output attended operation of the Generation Control of economizing on coal decision system 50 and the input of control system 30, the real time monitoring of realization best combustion coal-saving Generation Control scheme.
2, functional block
1) signal system of boiler, steam turbine and generator and control executing agency 10
The signal system of boiler, steam turbine and generator is made up of the various sensors of the burning of Monitoring and Controlling executing agency and boiler, steam turbine and generator operating condition, its output connects the input of synchronous real time data and image capturing system 20, and its input connects corresponding monitoring equipment.
The control executing agency of boiler, steam turbine and generator is made up of the various control actuating equipments of control boiler combustion and boiler, steam turbine and generator operating condition, the output of its input attended operation and control system 30, and its output connects corresponding controlled equipment.
The signal system of boiler, steam turbine and generator and control executing agency 10 are used for providing information to synchronous real time data and image capturing system 20, and accept the control information of operation and control system 30, finish the control corresponding function.
2) synchronous real time data and image capturing system 20
Real time data and the input of image capturing system 20 synchronously is connected the output of boiler combustion signal system, the output of boiler, steam turbine and generator operating condition signal system, the output of GPS device timing signal respectively; Gather the input that connects work information storehouse, combustion information storehouse and operation monitoring unit 40 with the output of monitoring system respectively.Be used for respectively signal system from boiler, steam turbine and generator, for example: gather burning image information and operating condition information in the senser elements such as image, spectrum, temperature, pressure, voltage, electric current, position, state in real time, and after the mark markers, deposit work information and combustion information in work information storehouse and the classification preservation of combustion information storehouse, send operation monitoring simultaneously.
3) operation and control system 30
Operation and control system 30 can be that operating personnel and boiler, steam turbine, generator control system are formed, and also can be boiler, steam turbine, generator collective and distributive type control system.The input of operation and control system 30 connects the output of best combustion coal-saving Generation Control scheme generation unit 58; The output of operation and control system 30 connects the operation of boiler, steam turbine and generator and the input of control executing agency operation.Be used for operating personnel or boiler, steam turbine and generator collective and distributive type automatic control system, implement control the running status of boiler, steam turbine and generator by control system and executing agency thereof.
4) the operation monitoring unit 40
The input of operation monitoring unit 40 connects the output of best combustion coal-saving Generation Control scheme generation unit 58 and the output of collection and monitoring system respectively; The output attended operation of operation monitoring unit 40 and the input of control system 30.Be used to the operations staff that the operation information of visual best combustion coal-saving Generation Control scheme and boiler, steam turbine and generator is provided.
5) the Generation Control decision system 50 of economizing on coal
As Fig. 2, the Generation Control of economizing on coal decision system 50 is made up of industrial computer (or collective and distributive type control system etc.) and application software functional module, realizes the automatic generation of best combustion coal-saving Generation Control scheme.
As Fig. 3, the application software functional module comprises work information storehouse 51, combustion information storehouse 52, performance analysis unit 53, image analyzing unit 54, analysis of spectrum unit 55, best combustion operating mode unit 56, best combustion flame unit 57 and best combustion coal-saving Generation Control scheme generation unit 58;
It connects and interactive relation is:
The output of real time data and image capturing system 20, work information storehouse 51, performance analysis unit 53, best combustion operating mode unit 56 and best combustion coal-saving Generation Control scheme generation unit 58 synchronously is connected successively with input;
The output of real time data and image capturing system 20 synchronously is connected with the input in combustion information storehouse 52, the output in combustion information storehouse 52 is connected with the input of image analyzing unit 54 with analysis of spectrum unit 55 respectively, the output of image analyzing unit 54 and analysis of spectrum unit 55 is connected with the input of best combustion flame unit 57 respectively, and the output of best combustion flame unit 57 is connected with the input of best combustion coal-saving Generation Control scheme generation unit 58;
The input of best combustion operating mode unit 56 is connected with the output of best combustion flame unit 57.
Operation principle is:
(1) the work information storehouse 51
Be used to deposit a large amount of work information data.
(2) the combustion information storehouse 52
Be used to deposit a large amount of combustion informations.
(3) the performance analysis unit 53
Be used for the operating condition of boiler, steam turbine and generator being sorted out and screening, find out the work information of optimization by the exerting oneself and security, economy and the reasonability of boiler, steam turbine and generator operation of generator.
(4) image analyzing unit 54
Be used for the burning image of boiler is carried out numerical analysis and image recognition, seek out at the boiler temperature of regulation and the characteristics of image and the image of the optimization combustion information under the pressure service condition.
(5) the analysis of spectrum unit 55
Be used for the combustion flame of boiler is carried out spectrum analysis and power spectrumanalysis, seek out at the boiler temperature of regulation and the spectral signature and the power spectrum characteristic of the optimization combustion information under the pressure service condition.
(6) best combustion operating mode unit 56
Be used for when identical target best combustion flame information and optimize the work information pairing, under the boiler temperature and pressure service condition of regulation, combustion conditions information to pairing is carried out security, economy and analysis on its rationality, minimum with the non-comburant of best combustion or discharging is principle, carry out optimal treatment, determine the best combustion work information, as the foundation of best combustion coal-saving Generation Control scheme generation.
(7) best combustion flame unit 57
Be used for a large amount of optimization combustion information that is provided by graphical analysis and analysis of spectrum is carried out comprehensive economy and analysis on its rationality, will be under certain boiler temperature and pressure service condition, the characteristics of image of best combustion, the result of the rule spectrum signature complex optimum of the spectral signature of best combustion and best combustion is as best combustion flame information, and the foundation that generates as best combustion coal-saving Generation Control scheme.
(8) best combustion coal-saving Generation Control scheme generation unit 58
From best combustion operating mode unit and best combustion flame unit, obtain best combustion work information and best combustion flame information, target best combustion work information and best combustion flame information combination are got up when same by the big young pathbreaker of generator output, get rid of labile state in the control procedure or be transformed into the combustion conditions information and the combustion flame information of the transient process state of another state from a state, and carry out running status analysis on its rationality and service condition restriction analysis, under the condition with given generator output, coal combustion non-comburant minimum best or discharging is a principle, determine best combustion coal-saving Generation Control scheme, that is: at given generator output and boiler, under the normal running (operation) conditions of steam turbine, provide the coal input quantity of the non-comburant minimum of coal combustion the best or discharging, intake, the corresponding controlling value of fuel quantities such as porthole aperture, and provide operation monitoring and control to implement.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention.Any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all still belongs in the scope of technical solution of the present invention protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Documents and materials
[1] the yellow brave reason Lin Shi old preceding bright Chen Gang in the village, typical furnace flame image combustion mode is discerned and is used " electric scientific and engineering " 2004.1
[2] permitted Hua Wumin Cao Wei Huaning will space forever, based on the blast furnace temperature field dynamic scaling algorithm of gradation of image statistical distribution, " metallurgical machinery and automation "
[3] Lou Chun Lu Zhou Huaichun passes new Pei Zhen woods, online detection of three-dimensional temperature field and analysis in the station boiler, thermal power engineering " 2005,20.1
[4] Jiang Xu light is sternly built the Hua Cen method, generating plant pulverized coal boiler flame monitoring and combustion diagnosis Research of Optimal Control, " energy project " 2006.4 but Chang Ruili king's the Yellow River Leap groups of stars horse is gained
[5] summary " thermal power engineering " 200116 (1) detected in Hua Yanping Lu Zou Yu earthquake centre, modern coal-fired power station boiler flame
[6] what ten thousand blue or green Yu Yue peak Zhang Yinqiao xuwei is brave, based on the boiler multichannel flame detector system " thermal power generation " 2000 (3) of image processing and digital video technology
[7] the hot state of Wang Lei Liu Na China, the application " China Association of Automation the youth of the nation academic annual meeting " 2002 (17) of image processing techniques on station boiler
[8] Image Processing Technology on Furnace Flame and the application study in the 1025t/h boiler combustion optimization 2001 thereof such as refined Li You celebrating of the luxuriant upright Li Shi of the Zhang Shishuai of Peng Min Liu Zhou Huaichun martial arts circles bear Hunan Miao Chuxiong Chen Wei.
Claims (9)
1. a best combustion coal-saving power generation controlling method in thermal power plant is characterized in that comprising the following steps:
1. the synchronous real time data of combustion information and operating condition information and IMAQ (1);
2. the analysis and optimization (2) of combustion information and operating condition information;
3. the determining of best combustion work information and best combustion flame information (3);
4. best combustion coal-saving Generation Control scheme generates (4);
5. best combustion coal-saving Generation Control scheme implementation (5).
2. by the described a kind of best combustion coal-saving power generation controlling method in thermal power plant of claim 1, it is characterized in that step is 1.:
Gather operating condition information in real time from boiler, steam turbine and generator simultaneously respectively, gather burning image information in real time from boiler, and after the mark markers, deposit work information and combustion information in work information storehouse and the classification preservation of combustion information storehouse, send operation monitoring simultaneously.
3. by the described a kind of best combustion coal-saving power generation controlling method in thermal power plant of claim 1, it is characterized in that step is 2.:
Respectively from the work information storehouse and combustion information storehouse sense information carry out performance analysis and graphical analysis, analysis of spectrum and optimization, the foundation that the work information optimized and combustion information are determined as best combustion operating mode and best combustion flame respectively;
Performance analysis is by the exerting oneself and security, economy and the reasonability of boiler, steam turbine and generator operation of generator, and the operating condition of boiler, steam turbine and generator is sorted out and screening, finds out the work information of optimization;
Graphical analysis is that the burning image to boiler carries out numerical analysis and image recognition, seeks out at the boiler temperature of regulation and the characteristics of image and the image of the optimization combustion information under the pressure service condition;
Analysis of spectrum is that the combustion flame to boiler carries out spectrum analysis and power spectrumanalysis, seeks out at the boiler temperature of regulation and the spectral signature and the power spectrum characteristic of the optimization combustion information under the pressure service condition.
4. by the described a kind of best combustion coal-saving power generation controlling method in thermal power plant of claim 1, it is characterized in that step is 3.:
The best combustion work information determine be when identical target best combustion flame information with optimize the work information pairing, under the boiler temperature and pressure service condition of regulation, combustion conditions information to pairing is carried out security, economy and analysis on its rationality, minimum with the non-comburant of best combustion or discharging is principle, carry out optimal treatment, determine the best combustion work information, as the foundation of best combustion coal-saving Generation Control scheme generation;
The determining of best combustion flame information carries out comprehensive economy and analysis on its rationality to a large amount of optimization combustion information that is provided by graphical analysis and analysis of spectrum, will be under certain boiler temperature and pressure service condition, the characteristics of image of best combustion, the result of the rule spectrum signature complex optimum of the spectral signature of best combustion and best combustion is as best combustion flame information, and the foundation that generates as best combustion coal-saving Generation Control scheme.
5. by the described a kind of best combustion coal-saving power generation controlling method in thermal power plant of claim 1, it is characterized in that step is 4.:
Target best combustion work information and best combustion flame information combination are got up when same by the big young pathbreaker of generator output, get rid of labile state in the control procedure or be transformed into the combustion conditions information and the combustion flame information of the transient process state of another state from a state, and carry out running status analysis on its rationality and service condition restriction analysis, under the condition with given generator output, coal combustion non-comburant minimum best or discharging is a principle, determine best combustion coal-saving Generation Control scheme, that is: at given generator output and boiler, under the normal running (operation) conditions of steam turbine, provide the coal input quantity of the non-comburant minimum of coal combustion the best or discharging, intake, the corresponding controlling value of fuel quantities such as porthole aperture, and provide operation monitoring and control to implement.
6. by the described a kind of best combustion coal-saving power generation controlling method in thermal power plant of claim 1, it is characterized in that step is 5.:
According to operation monitoring information and best combustion coal-saving Generation Control scheme, implement best combustion coal-saving Generation Control by operation and control system or operating personnel to boiler, steam turbine and generator.
7. implement a kind of thermal power plant best combustion coal-saving power generation control of the described method of claim 1, the signal system and the control executing agency (10) that comprise existing boiler, steam turbine and generator, synchronous real time data and image capturing system (20), operation and control system (30) and operation monitoring unit (40);
It is characterized in that: be provided with the Generation Control decision system (50) of economizing on coal;
Boiler, the signal system of steam turbine and generator and control executing agency (10), synchronous real time data and image capturing system (20), the Generation Control of economizing on coal decision system (50), operation monitoring unit (40), operation and control system (30) and boiler, the signal system of steam turbine and generator and control executing agency (10) closed loop successively connect to form automatic control system, realize boiler, the synchronous real time data and the IMAQ of the combustion information of steam turbine and generator and operating condition information, the analysis and optimization of combustion information and operating condition information, determining of best combustion work information and best combustion flame information, best combustion coal-saving Generation Control scheme generates and best combustion coal-saving Generation Control scheme implementation;
Output attended operation monitor unit (40) input of synchronous real time data and image capturing system (20), the real time monitoring of realization boiler, steam turbine and generator operating condition;
The input of the output attended operation of the Generation Control of economizing on coal decision system (50) and control system (30), the real time monitoring of realization best combustion coal-saving Generation Control scheme.
8. by the described a kind of thermal power plant of claim 7 best combustion coal-saving power generation control, it is characterized in that:
The described Generation Control decision system (50) of economizing on coal is made up of industrial computer or collective and distributive type control system and application software functional module (A), realizes the automatic generation of best combustion coal-saving Generation Control scheme.
9. by the described a kind of thermal power plant of claim 7 best combustion coal-saving power generation control, it is characterized in that:
Application software functional module (A) comprises work information storehouse (51), combustion information storehouse (52), performance analysis unit (53), image analyzing unit (54), analysis of spectrum unit (55), best combustion operating mode unit (56), best combustion flame unit (57) and best combustion coal-saving Generation Control scheme generation unit (58);
It connects and interactive relation is:
The output of real time data and image capturing system (20), work information storehouse (51), performance analysis unit (53), best combustion operating mode unit (56) and best combustion coal-saving Generation Control scheme generation unit (58) synchronously is connected successively with input;
The output of real time data and image capturing system (20) synchronously is connected with the input of combustion information storehouse (52), the output in combustion information storehouse (52) is connected with the input of image analyzing unit (54) with analysis of spectrum unit (55) respectively, the output of image analyzing unit (54) and analysis of spectrum unit (55) is connected with the input of best combustion flame unit (57) respectively, and the output of best combustion flame unit (57) is connected with the input of best combustion coal-saving Generation Control scheme generation unit (58);
The input of best combustion operating mode unit (56) is connected with the output of best combustion flame unit (57);
Work information storehouse (51) is used to deposit a large amount of work information data;
Combustion information storehouse (52) is used to deposit a large amount of combustion informations;
Performance analysis unit (53) is used for by the exerting oneself and security, economy and the reasonability of boiler, steam turbine and generator operation of generator the operating condition of boiler, steam turbine and generator being sorted out and screening, finds out the work information of optimization;
Image analyzing unit (54) is used for the burning image of boiler is carried out numerical analysis and image recognition, seeks out at the boiler temperature of regulation and the characteristics of image and the image of the optimization combustion information under the pressure service condition;
Analysis of spectrum unit (55) is used for the combustion flame of boiler is carried out spectrum analysis and power spectrumanalysis, seeks out at the boiler temperature of regulation and the spectral signature and the power spectrum characteristic of the optimization combustion information under the pressure service condition;
Best combustion operating mode unit (56) is used for when identical target best combustion flame information and optimizes the work information pairing, under the boiler temperature and pressure service condition of regulation, combustion conditions information to pairing is carried out security, economy and analysis on its rationality, minimum with the non-comburant of best combustion or discharging is principle, carry out optimal treatment, determine the best combustion work information, as the foundation of best combustion coal-saving Generation Control scheme generation;
Best combustion flame unit (57) is used for a large amount of optimization combustion information that is provided by graphical analysis and analysis of spectrum is carried out comprehensive economy and analysis on its rationality, will be under certain boiler temperature and pressure service condition, the characteristics of image of best combustion, the result of the rule spectrum signature complex optimum of the spectral signature of best combustion and best combustion is as best combustion flame information, and the foundation that generates as best combustion coal-saving Generation Control scheme;
Best combustion coal-saving Generation Control scheme generation unit (58) is used for by the big young pathbreaker of generator output target best combustion work information and best combustion flame information combination when same, get rid of labile state in the control procedure or be transformed into the combustion conditions information and the combustion flame information of the transient process state of another state from a state, and carry out running status analysis on its rationality and service condition restriction analysis, under the condition with given generator output, coal combustion non-comburant minimum best or discharging is a principle, determine best combustion coal-saving Generation Control scheme, that is: at given generator output and boiler, under the normal running (operation) conditions of steam turbine, provide the coal input quantity of the non-comburant minimum of coal combustion the best or discharging, intake, the corresponding controlling value of fuel quantities such as porthole aperture, and provide operation monitoring and control to implement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102728008A CN101701719B (en) | 2009-11-17 | 2009-11-17 | Best combustion coal-saving power generation controlling method in thermal power plant and device thereof |
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| CN2009102728008A CN101701719B (en) | 2009-11-17 | 2009-11-17 | Best combustion coal-saving power generation controlling method in thermal power plant and device thereof |
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| CN101701719A true CN101701719A (en) | 2010-05-05 |
| CN101701719B CN101701719B (en) | 2011-07-27 |
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| CN102662318A (en) * | 2012-05-25 | 2012-09-12 | 天津市电力公司 | Coal supply method of optimizing fire power plant by real-time coal firing heat value coefficient |
| CN103672845A (en) * | 2012-09-19 | 2014-03-26 | 上海宝信软件股份有限公司 | Fuel cutting method for multi-fuel blending combustion unit under run back (RB) condition |
| CN108592081A (en) * | 2018-04-28 | 2018-09-28 | 武汉科技大学 | Porous media combustor control system and method towards high temperature heating art |
| CN109297045A (en) * | 2018-10-30 | 2019-02-01 | 华能国际电力股份有限公司福州电厂 | A kind of thermal power plant's coal quality low heat valve on-line correction system and method |
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| CN1091503C (en) * | 1995-05-17 | 2002-09-25 | 王满家 | Method and system for controlling combustion |
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| CN102662318A (en) * | 2012-05-25 | 2012-09-12 | 天津市电力公司 | Coal supply method of optimizing fire power plant by real-time coal firing heat value coefficient |
| CN102662318B (en) * | 2012-05-25 | 2013-09-18 | 天津市电力公司 | Coal supply method of optimizing fire power plant by real-time coal firing heat value coefficient |
| CN103672845A (en) * | 2012-09-19 | 2014-03-26 | 上海宝信软件股份有限公司 | Fuel cutting method for multi-fuel blending combustion unit under run back (RB) condition |
| CN103672845B (en) * | 2012-09-19 | 2015-05-13 | 上海宝信软件股份有限公司 | Fuel cutting method for multi-fuel blending combustion unit under run back (RB) condition |
| CN108592081A (en) * | 2018-04-28 | 2018-09-28 | 武汉科技大学 | Porous media combustor control system and method towards high temperature heating art |
| CN109297045A (en) * | 2018-10-30 | 2019-02-01 | 华能国际电力股份有限公司福州电厂 | A kind of thermal power plant's coal quality low heat valve on-line correction system and method |
| CN109297045B (en) * | 2018-10-30 | 2024-02-20 | 华能国际电力股份有限公司福州电厂 | System and method for online correction of low-level heating value of coal quality of thermal power plant |
| CN112491049A (en) * | 2020-11-26 | 2021-03-12 | 贵州电网有限责任公司 | Multi-energy access power grid optimized scheduling method considering on-line coal consumption curve |
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