CN107543199A - A kind of pulverized-coal fired boiler online detection of primary air and burning optimization management system - Google Patents
A kind of pulverized-coal fired boiler online detection of primary air and burning optimization management system Download PDFInfo
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- CN107543199A CN107543199A CN201610455670.1A CN201610455670A CN107543199A CN 107543199 A CN107543199 A CN 107543199A CN 201610455670 A CN201610455670 A CN 201610455670A CN 107543199 A CN107543199 A CN 107543199A
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Abstract
The invention discloses a kind of pulverized-coal fired boiler online detection of primary air and burning optimization management system, including coal pulverizer, boiler combustion device, adjustable shrinkage device, wind and powder on-line measurement apparatus, flying dust on-line measurement device, boiler intelligent soot blowing and optimal system, ature of coal on-line analysis and coal blending optimizing system and computer control terminal, adjustable shrinkage device is connected with coal pulverizer, boiler combustion device includes burner group, the output end of adjustable shrinkage device is connected with boiler combustion device, and wind and powder on-line measurement apparatus and flying dust on-line measurement device are connected with computer control terminal.A kind of pulverized-coal fired boiler online detection of primary air and burning optimization management system are reasonable in design, being capable of real-time optimization boiler wind speed adjustment, the coal blending burning method of operation, boiler combustion is instructed to adjust, improve boiler combustion operational efficiency, reduce gross coal consumption rate, the NOx emission of flue gas is reduced simultaneously, realizes the economic and environment-friendly operation of boiler.
Description
【Technical field】
The present invention relates to a kind of boiler coal-ash management optimization device, more particularly to a kind of pulverized-coal fired boiler online detection of primary air and
Burning optimization management system.
【Background technology】
Currently, the whole power industry wind of China's electricity, powder are always to perplex a great problem for influenceing boiler of power plant operation, wind,
The shortage of powder on-line monitoring, causes air quantity, the extensive control of coal dust amount being sent into burner hearth, and operations staff relies primarily on respectively
From experience operated, wind, powder amount proportioning relatively large deviation be present.Optimum air coal ratio, accurate adjustment coal dust amount, wind are found in regulation
Proper Match is measured, is that burning optimization primarily solves the problems, such as.Therefore, it is proposed that a kind of pulverized-coal fired boiler online detection of primary air and combustion
Burn Optimal Management System
【The content of the invention】
It is a primary object of the present invention to provide a kind of pulverized-coal fired boiler online detection of primary air and burning optimization management system, if
Meter is reasonable, can real-time optimization boiler wind speed adjustment, the coal blending burning method of operation, instruct boiler combustion to adjust, improve boiler combustion fortune
Line efficiency, gross coal consumption rate is reduced, while reduce the NOx emission of flue gas, realized the economic and environment-friendly operation of boiler, can effectively solve
The problem of in background technology.
To achieve the above object, the technical scheme taken of the present invention is：
A kind of pulverized-coal fired boiler online detection of primary air and burning optimization management system, including coal pulverizer, boiler combustion device, can
Shrinkage cavity device, wind and powder on-line measurement apparatus, flying dust on-line measurement device, boiler intelligent soot blowing and optimal system, ature of coal is adjusted to divide online
Analysis and coal blending optimizing system and computer control terminal, adjustable shrinkage device are connected with coal pulverizer, and boiler combustion device includes burning
Device group, the output end of adjustable shrinkage device are connected with boiler combustion device, wind and powder on-line measurement apparatus and flying dust on-line measurement dress
Put and be connected with computer control terminal, computer control terminal includes burn accurate management system, leveling software systems and First air
Software is adjusted, adjustable shrinkage device is electrical connected with computer control terminal.
Further, wind and powder on-line measurement apparatus includes wind speed, apparatus for measuring air quantity and pulverized coal flow measurement apparatus.
Further, the boiler combustion device includes air-introduced machine, pressure fan and primary air fan.
Further, the coal dust classifier of coal pulverizer uses the high efficient separation technology of combining dynamic and static research, can be with blowing powder producing
System and the ball type pulverizer system match, and static separation device is transformed into dynamic separator can improve coal powder distribation uniformity and refer to
Count and reduce fineness of pulverized coal.
Further, the afterbody heat transmission equipment of boiler combustion device uses elastic gap self-compensation sealed technology, will be adjustable
Sealing and the flexible sealing that is effectively integrated of fixed seal reconstruction.
Compared with prior art, the present invention has the advantages that：It is reasonable in design, by set adjustable shrinkage device,
Wind and powder on-line measurement apparatus, flying dust on-line measurement device, boiler intelligent soot blowing and optimal system, ature of coal on-line analysis and coal blending optimizing
System and computer control terminal and the accurate management system of burning, leveling software systems and First air regulation software, can be real-time
Optimize boiler wind speed adjustment, the coal blending burning method of operation, instruct boiler combustion to adjust, improve boiler combustion operational efficiency, reduce and generate electricity
Coal consumption, while the NOx emission of flue gas is reduced, realize the economic and environment-friendly operation of boiler.
【Brief description of the drawings】
Fig. 1 is the overall structure signal of a kind of pulverized-coal fired boiler online detection of primary air of the present invention and burning optimization management system
Figure.
Fig. 2 accurately manages for the burning of a kind of pulverized-coal fired boiler online detection of primary air of the present invention and burning optimization management system
System schematic diagram.
Fig. 3 is the model self correcting system of a kind of pulverized-coal fired boiler online detection of primary air of the present invention and burning optimization management system
Schematic diagram.
Fig. 4 is the intelligent ash blowing optimization system of a kind of pulverized-coal fired boiler online detection of primary air of the present invention and burning optimization management system
System schematic diagram.
Fig. 5 is the coal dust speed control work of a kind of pulverized-coal fired boiler online detection of primary air of the present invention and burning optimization management system
Make FB(flow block).
In figure：1st, coal pulverizer；2nd, adjustable shrinkage device；3rd, boiler combustion device；4th, burner group；5th, wind and powder on-line measures
Device；6th, flying dust on-line measurement device；7th, computer control terminal.
【Embodiment】
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to
Embodiment, the present invention is expanded on further.
As Figure 1-5, a kind of pulverized-coal fired boiler online detection of primary air and burning optimization management system, including coal pulverizer 1, pot
Stove burner 3, adjustable shrinkage device 2, wind and powder on-line measurement apparatus 5, flying dust on-line measurement device 6, boiler intelligent soot blowing are excellent
Change system, ature of coal on-line analysis and coal blending optimizing system and computer control terminal 7, adjustable shrinkage device 2 are connected with coal pulverizer 1,
Boiler combustion device 3 includes burner group 4, and the output end of adjustable shrinkage device 2 is connected with boiler combustion device 3, wind and powder on-line
Measurement apparatus 5 and flying dust on-line measurement device 6 are connected with computer control terminal 7, and computer control terminal 7 includes the accurate pipe of burning
Reason system, leveling software systems and First air regulation software, adjustable shrinkage device 2 are electrical connected with computer control terminal 7.Burning
Accurate management system includes model self correcting system；Boiler intelligent soot blowing management system passes through to each fouling of heating surface degree of boiler
Real time on-line monitoring and quantification treatment, by pollution level quantify show, and bonded boiler operation situation and security needs, it is right
Soot blowing process carries out intelligent management, realizes soot blowing on demand；Ature of coal on-line analysis and coal blending optimizing system include coal property test equipment,
Using prompt fission gammas's INAA, can quickly, be accurately obtained coal analysis result so that coal blending result is as far as possible
Small fluctuation, it is ensured that ature of coal is up to standard, improves boiler efficiency, and on-line element analysis of coal is recollected available for history, and aids in cause of accident
Analysis.In the data processing to database, connected applications are actual, and coal process divides stove, point storehouse meter matter, metering display in realization,
High accuracy data of the coal blending optimizing based on coal quality monitoring, it is possible to achieve the coal blending in up to 6 coal sources, system provides in coal blending process
5 kinds of coal blending control parameters, the accuracy of coal blending result is improved to greatest extent, realize that the mixture of fat coal and other coals utilizes
Rate；Computer control terminal 7 carries out the aperture of remote control adjustable shrinkage device 2, that is, realizes a computer to whole steam coal
Aperture control is entered by the executing agency of whole adjustable contractions on powder pipeline, and the aperture of each adjustable contraction, which will be fed back, to be included calculating
In the control interface of machine, the speed leveling of each tube cell is an iterative process, due to coal burner number more than, it is necessary to using
Computer control managing.
Wherein, wind and powder on-line measurement apparatus 5 includes wind speed, apparatus for measuring air quantity and pulverized coal flow measurement apparatus.Wind speed, wind
Measuring device is that the measurement of coal dust flow velocity uses friendship Related Computational Methods, and two sensors are installed according to certain spacing distance
On pulverized coal channel.Because pulverized coal particle carries electrostatic, therefore two waveform bases are generated by electrostatic on upstream and downstream sensor
This identical random signal.There is a time difference, that is, coal dust between the two waveform identical signals to flow through the two
The time that sensor is undergone.Correlation computations are handed over by computer, with regard to this time difference can be obtained.According to the time difference and two sensors
Between fixed range, with regard to average flow velocity of the coal dust on cross-section of pipeline can be calculated.Air quantity was cut in the unit interval
The mean wind speed in face and the product of air channel cross-sectional area；Pulverized coal flow measurement apparatus is coal dust absolute concentration measuring principle：In coal dust
Streamwise installs 2 metal sensors in pipeline, and one is used as microwave signal transmitting terminal；Another Zhi Zuowei microwave signals connect
Receiving end.By the difference for measuring the microwave resonance frequency between two sensors, it is possible to obtain coal powder density.
Wherein, the boiler combustion device 3 includes air-introduced machine, pressure fan and primary air fan.
Wherein, the coal dust classifier of coal pulverizer 1 uses the high efficient separation technology of combining dynamic and static research, can be with blowing powder producing system
System and the ball type pulverizer system match, and static separation device is transformed into dynamic separator can improve coal powder distribation evenness index
And reduce fineness of pulverized coal.Air leak rate of air curtain is effectively reduced, controllable air leak rate of air curtain is less than 6% after comprehensive reformation, and consumable accessory service life is not
Less than 18000 hours, the economic benefit of equipment, safety benefit significantly improved after transformation, and to reducing cost of electricity-generating, energy-saving and emission-reduction have
It is of great importance.
Wherein, the afterbody heat transmission equipment of boiler combustion device 3 uses elastic gap self-compensation sealed technology, will be adjustable close
The flexible sealing that envelope and fixed seal reconstruction are effectively integrated.Boiler combustion device 3 is in Combustion Operation of Boilers stove
Flame uses real time monitoring, and flame radiation image letter is obtained from burner hearth corner different height using flame image detector
Breath, using radiation image computer processing technology, radiant heat transfer is theoretical, advanced solution strategies, in real time to burner hearth Three-dimensional Combustion temperature
Spend field, Wall Radiation hot-fluid, the equidistributed visual monitor of furnace load.Hearth combustion is changed into from an approximate Black smoker
Quickly and efficiently diagnosing combustion work condition abnormality phenomenon is implemented in one visual system, help, display flame kernel whether deflection,
Whether flame whitewash a wall, whether coking and whether the important information about combustion conditions such as localized extinction, instruct firing optimization and
Control, operation troubles and accident that boiler combustion abnormal belt is come are reduced, the integrated operation level of thermal power generation unit is reached more
High-level, safety and economic operation and reduction pollution to power plant play huge effect.Utilize Three-dimensional Combustion visual for temperature field
Information, conclusion hearth combustion is always auxiliary to penetrate energy signal, reflects the change of hearth combustion rate in real time, and participation unit load controls, raising
The stability of unit load response speed and boiler turbine thermal parameter, improve the ability of unit load regulation.
Accurate management system of burning is based on accurate on-line measurement data or is derived from DCS system data, utilizes statistics
The data training methods such as, SVMs, genetic computation method, establish the mathematical modeling of optimization, and combine closed loop feedback control,
The advanced control technology such as multiobjective optimal control realizes the accurate management objectives of burning optimization, there is provided a kind of brand-new Optimizing Mode,
An on-line analysis platform to the optimization of boiler multiple target performance is provided for operations staff, and is taken the dish out of the pot by the Platform Analysis
The optimization space of combustion system and the most parameter of optimization potentiality, and propose that specific technology is arranged for performance optimization in stove operation
Apply and guiding opinion.The system mainly provides burning optimization guiding function, additionally including the inquiry of key data history curve, peace
Full early warning and parameter setting function., both can be according to user based on advanced artificial intelligence neural networks and expert system database
Demand carries out fully optimized to same boiler performance, boiler combustion can also be modeled according to different emphasis, real-time estimate
The data such as boiler thermal output, NOx emission concentration, furnace side auxiliary power consumption, then by optimized algorithm to current controllable operational factor
Optimize, consider each side factor comprehensively, there is provided burning optimization is instructed, and Boiler Economical Operation, reduction NOx are improved to reach
The purpose of discharge.
Leveling system includes First air regulation software and adjustable shrinkage device 2, and the regulation of each coal pipe First air is wind powder
The core of leveling, according to high-precision measurement data, the two phase flow speed in each coal pipe is adjusted by adjustable contraction, will be managed
The control of pulverized coal flow deviation is in the range of ± 5% in road.Instruct boiler combustion combustion adjustment, rationalization's Furnace Aerodynamic Field,
Boiler combustion operational efficiency is improved, prevents slagging, while reduces the NOx emission of flue gas, keeps boiler under optimum condition
Operation.
It should be noted that the present invention is a kind of pulverized-coal fired boiler online detection of primary air and burning optimization management system, work
When, by entering the coal dust amount of each burner group 4 and the on-line monitoring of air quantity, i.e., being entered by wind and powder on-line measurement apparatus 5
Row measurement, the online monitoring data of donkey boiler exiting flue gas, i.e., is measured by flying dust on-line measurement device 6, passes through tune
After flat software systems are to parameter processing, proposed to need the amplitude adjusted by leveling software, issue and instruct to adjustable shrinkage device 2,
The coal dust and air mass flow to each burner in boiler are realized by the adjustment for the adjustable contraction for installing executing agency additional accordingly
It can individually control, carry out automatic adjusument.So that each combustion chamber can turn into " controllable combustion chamber ", and thus whole
Individual burner hearth becomes " controllable burner hearth ", therefore, it is possible to real-time optimization boiler wind speed adjustment, the coal blending burning method of operation, instructs boiler to fire
Adjustment is burnt, improves boiler combustion operational efficiency, reduces gross coal consumption rate, while reduces the NOx emission of flue gas, realizes the economy of boiler
Environmental protection fortune, ensure the utilization benefit of a kind of pulverized-coal fired boiler online detection of primary air and burning optimization management system.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. a kind of pulverized-coal fired boiler online detection of primary air and burning optimization management system, including coal pulverizer (1), boiler combustion device
(3), adjustable shrinkage device (2), wind and powder on-line measurement apparatus (5), flying dust on-line measurement device (6), boiler intelligent soot blowing and optimal
System, ature of coal on-line analysis and coal blending optimizing system and computer control terminal (7), it is characterised in that：Adjustable shrinkage device (2) with
Coal pulverizer (1) connects, and boiler combustion device (3) includes burner group (4), and output end and the boiler of adjustable shrinkage device (2) fire
Device (3) connection is burnt, wind and powder on-line measurement apparatus (5) and flying dust on-line measurement device (6) connect with computer control terminal (7)
Connect, computer control terminal (7) includes burn accurate management system, leveling software systems and First air regulation software, adjustable contraction
Device (2) is electrical connected with computer control terminal (7).
2. a kind of pulverized-coal fired boiler online detection of primary air according to claim 1 and burning optimization management system, its feature exist
In：Wind and powder on-line measurement apparatus (5) includes wind speed, apparatus for measuring air quantity and pulverized coal flow measurement apparatus.
3. a kind of pulverized-coal fired boiler online detection of primary air according to claim 1 and burning optimization management system, its feature exist
In：The boiler combustion device (3) includes air-introduced machine, pressure fan and primary air fan.
4. a kind of pulverized-coal fired boiler online detection of primary air according to claim 1 and burning optimization management system, its feature exist
In：The coal dust classifier of coal pulverizer (1) uses the high efficient separation technology of combining dynamic and static research, can be with unit pulverized-coal system and middle storage
Formula pulverized coal preparation system matches, and static separation device is transformed into dynamic separator can improve coal powder distribation evenness index and reduce coal
Powder fineness.
5. a kind of pulverized-coal fired boiler online detection of primary air according to claim 1 and burning optimization management system, its feature exist
In：The afterbody heat transmission equipment of boiler combustion device (3) uses elastic gap self-compensation sealed technology, by adjustable sealing and fixation
The flexible sealing that the seal reconstruction of formula is effectively integrated.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108958304A (en) * | 2018-08-10 | 2018-12-07 | 国网山东省电力公司电力科学研究院 | A kind of First air leveling system and leveling method |
| CN109270294A (en) * | 2018-11-22 | 2019-01-25 | 北京华科佳仪科技有限公司 | A kind of online detection of primary air system and measurement method |
| CN109541168A (en) * | 2018-11-26 | 2019-03-29 | 江苏方天电力技术有限公司 | A kind of economic fineness of pulverized coal on-line monitoring and method of adjustment |
| CN109539300A (en) * | 2018-09-28 | 2019-03-29 | 国网新疆电力有限公司电力科学研究院 | A kind of the primary air velocity adjusting method and dedicated coal pulverizer of boiler peak regulation |
| CN109855113A (en) * | 2018-12-24 | 2019-06-07 | 新奥数能科技有限公司 | A kind of method and apparatus preventing station boiler slagging |
| CN110568766A (en) * | 2019-10-22 | 2019-12-13 | 华北电力大学 | Boiler control system based on combustion layer temperature and online optimization method |
| CN110566928A (en) * | 2019-09-16 | 2019-12-13 | 中煤科工清洁能源股份有限公司 | Automatic control method, device, equipment and medium for industrial pulverized coal boiler combustion |
| CN111120989A (en) * | 2019-12-11 | 2020-05-08 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Boiler coking early warning method based on three-dimensional temperature field distribution of hearth |
| CN113760018A (en) * | 2021-09-17 | 2021-12-07 | 芜湖发电有限责任公司 | Power station boiler balanced combustion optimization method based on data driving |
| CN114046493A (en) * | 2021-11-02 | 2022-02-15 | 国家能源集团华北电力有限公司廊坊热电厂 | Boiler combustion optimization system and terminal |
| CN114184806A (en) * | 2022-02-15 | 2022-03-15 | 沃森能源技术（廊坊）有限公司 | Control method of wind-powder multi-parameter online detection device |
| CN117972400A (en) * | 2024-04-02 | 2024-05-03 | 烟台哈尔滨工程大学研究院 | Combustion mode dividing method for multi-fuel ship internal combustion engine |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108958304A (en) * | 2018-08-10 | 2018-12-07 | 国网山东省电力公司电力科学研究院 | A kind of First air leveling system and leveling method |
| CN109539300A (en) * | 2018-09-28 | 2019-03-29 | 国网新疆电力有限公司电力科学研究院 | A kind of the primary air velocity adjusting method and dedicated coal pulverizer of boiler peak regulation |
| CN109539300B (en) * | 2018-09-28 | 2023-09-01 | 国网新疆电力有限公司电力科学研究院 | Primary air speed adjusting method for boiler peak regulation and special coal mill |
| CN109270294A (en) * | 2018-11-22 | 2019-01-25 | 北京华科佳仪科技有限公司 | A kind of online detection of primary air system and measurement method |
| CN109541168A (en) * | 2018-11-26 | 2019-03-29 | 江苏方天电力技术有限公司 | A kind of economic fineness of pulverized coal on-line monitoring and method of adjustment |
| CN109855113B (en) * | 2018-12-24 | 2020-09-08 | 新奥数能科技有限公司 | Method and device for preventing power station boiler from slagging |
| CN109855113A (en) * | 2018-12-24 | 2019-06-07 | 新奥数能科技有限公司 | A kind of method and apparatus preventing station boiler slagging |
| CN110566928A (en) * | 2019-09-16 | 2019-12-13 | 中煤科工清洁能源股份有限公司 | Automatic control method, device, equipment and medium for industrial pulverized coal boiler combustion |
| CN110566928B (en) * | 2019-09-16 | 2021-06-15 | 中煤科工清洁能源股份有限公司 | Automatic control method, device, equipment and medium for industrial pulverized coal boiler combustion |
| CN110568766A (en) * | 2019-10-22 | 2019-12-13 | 华北电力大学 | Boiler control system based on combustion layer temperature and online optimization method |
| CN111120989A (en) * | 2019-12-11 | 2020-05-08 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Boiler coking early warning method based on three-dimensional temperature field distribution of hearth |
| CN113760018A (en) * | 2021-09-17 | 2021-12-07 | 芜湖发电有限责任公司 | Power station boiler balanced combustion optimization method based on data driving |
| CN114046493A (en) * | 2021-11-02 | 2022-02-15 | 国家能源集团华北电力有限公司廊坊热电厂 | Boiler combustion optimization system and terminal |
| CN114184806A (en) * | 2022-02-15 | 2022-03-15 | 沃森能源技术（廊坊）有限公司 | Control method of wind-powder multi-parameter online detection device |
| CN114184806B (en) * | 2022-02-15 | 2022-06-03 | 沃森能源技术（廊坊）有限公司 | Control method of wind-powder multi-parameter online detection device |
| CN117972400A (en) * | 2024-04-02 | 2024-05-03 | 烟台哈尔滨工程大学研究院 | Combustion mode dividing method for multi-fuel ship internal combustion engine |
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Application publication date: 20180105 |