CN110397950A - A kind of boiler optimization combustion system - Google Patents
A kind of boiler optimization combustion system Download PDFInfo
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- CN110397950A CN110397950A CN201910697232.XA CN201910697232A CN110397950A CN 110397950 A CN110397950 A CN 110397950A CN 201910697232 A CN201910697232 A CN 201910697232A CN 110397950 A CN110397950 A CN 110397950A
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- boiler
- state
- regulating system
- optimization
- regulating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
Abstract
The invention discloses a kind of boiler optimization combustion systems, including boiler DCS control system；The DCS control system has optimizing regulating system by OPC communication connection；The optimizing regulating system includes the quick reflection system of gas pressure adjusting, directs wind optimum proportioning optimization system, air-fuel proportion optimization system, steam temperature automatic regulating system, water auto-regulation system and the quick regulating system of fuel；The regulating system carries out variation adjusting to each parameter of original state, and optimal solution is found in adjusting；Adjust as follows: stateful by the institute of traversal history, when the state encountered is in the current situation optimal, then defaulting it is optimum state；Successively compared with last data, and iteration is updated to current optimum state.Boiler optimization combustion system of the invention, Steam Temperature for Boiler, water-level fluctuation are smaller, and boiler is more stable, and gaspipe network pressure oscillation is smaller, and boiler combustion is more efficient.
Description
Technical field
The present invention relates to a kind of Boiler Combustion Optimization Systems, and in particular to a kind of boiler optimization combustion system belongs to boiler
Combustion optimizing system technical field.
Background technique
Play the role of in boiler of power plant field firing optimization to boiler whole efficiency vital, and boiler belongs to high energy
Equipment is consumed, small efficiency change often corresponds to huge economic benefit, by taking 220t/h high temperature sub-high pressure boiler as an example, 1%
Improved efficiency correspond to 2,780,000 yuan of year benefit；Existing gas fired-boiler and multi-fuel fired boiler adjustment mode be manually into
Row adjustment, experience, habit, energy, the state of mind of operator have larger impact to boiler efficiency；Pre-stage test crosses standardization
It operates to improve boiler efficiency, but firing optimization is the complex mathematical relationship that a multi-parameter interacts, majority between each parameter
There is different correlations, in variation of ambient temperature, fuel change, composition of air variation, load variations etc. it is various it is controllable not
It, can not be simply with text to how Optimum Operation is described when controllable factor all has variation；Therefore, it is imitated in view of boiler
Rate to energy-saving and emission-reduction, propose the larger impact of effect, find improve boiler efficiency new departure it is extremely urgent.
Summary of the invention
To solve the above problems, the invention proposes a kind of boiler optimization combustion system, reflection rapidly, can search for identity,
Automatic optimal has the automatic regulating system for multivariable rapid data calculation function.
Boiler optimization combustion system of the invention, including boiler DCS control system；The DCS control system passes through OPC
Communication connection has optimizing regulating system；The optimizing regulating system includes the quick reflection system of gas pressure adjusting, directs wind
Optimum proportioning optimization system, air-fuel proportion optimization system, steam temperature automatic regulating system, water auto-regulation system and fuel are quick
Regulating system；The regulating system carries out variation adjusting to each parameter of original state, and optimal solution is found in adjusting；It adjusts such as
Under: stateful by the institute of traversal history, when the state encountered is in the current situation optimal, then defaulting it is optimal shape
State；Successively compared with last data, and iteration is updated to current optimum state.
Preferably, not only compare with previous solution, also compare with the latter solution when the regulating system is adjusted, if
Than the Xie Douyou of front and back, then preceding state iteration is updated to current optimal solution；Its completion optimum state of the first step
When, micro adjustment automatically is carried out to each parameter one by one, and compare with former optimum state, finds more excellent state.
Preferably, genetic algorithm built in the regulating system, obtains the search in calculating for solving to optimize.
Preferably, ant group algorithm built in the regulating system.
Compared with prior art, boiler optimization combustion system of the invention can be set the present invention in adjustment according to original
Surely it is adjusted, the Automatic-searching optimum operating condition in adjustment, and is fished for more excellent solution automatically, regulate the speed fast, response
Speed is fast, adjusts accurately, Steam Temperature for Boiler, water-level fluctuation are smaller, and boiler is more stable, and gaspipe network pressure oscillation is smaller, boiler
It burns more efficient, gas fired-boiler gas unit consumption reduces by 1.5% or more, and multi-fuel fired boiler ton vapour mark coal consumption reduces by 0.5% or more.
Detailed description of the invention
Fig. 1 is original gas fired-boiler access optimum burningsystem parameter schematic diagram of the invention.
Fig. 2 is original multi-fuel fired boiler access optimum burningsystem parameter schematic diagram of the invention.
Specific embodiment
Embodiment 1:
Boiler optimization combustion system of the invention, including boiler DCS control system；The DCS control system is communicated by OPC
It is connected with optimizing regulating system；The optimizing regulating system include gas pressure adjust quick reflection system, to direct wind best
Proportion optimization system, air-fuel proportion optimization system, steam temperature automatic regulating system, water auto-regulation system and fuel are quickly adjusted
System；The regulating system carries out variation adjusting to each parameter of original state, and optimal solution is found in adjusting；It adjusts as follows: logical
The institute for crossing traversal history is stateful, and when the state encountered is in the current situation optimal, then defaulting it is optimum state；Successively
Compared with last data, and iteration is updated to current optimum state.
Wherein, when the regulating system is adjusted, not only compare with previous solution, also compare with the latter solution, if than before
Face and subsequent solution are all excellent, then preceding state iteration are updated to current optimal solution；When its completion optimum state of the first step, from
Dynamic carries out micro adjustment to each parameter one by one, and compares with former optimum state, finds more excellent state；The regulating system
Built-in genetic algorithm obtains the search in calculating for solving to optimize；Ant group algorithm built in the regulating system.
Embodiment 1:
By increasing optimization active station one independent automatic optimal control system of a cuff intelligent early-warning system, in former DCS
It is interconnected in control system by OPC communication function and new system, original boiler following data is passed to automatic optimal control system.
Original gas fired-boiler data in Fig. 1 are passed to automatic optimal control system, it will original multi-fuel fired boiler in Fig. 2
Data are passed to automatic optimal control system, pass through automatic optimal control system automatic optimal；(1) vapour of gas fired-boiler can be achieved
Packet water level control circuit；(2) Stream temperature degree control loop；(3) load control circuit (main vapour pressure/blast-furnace gas pressure)；
(4) hearth vacuum control circuit；(5) flue gas oxygen content control loop optimizes control, while can realize multi-fuel fired boiler
(1) the Water Level Control of Steam circuit；(2) Stream temperature degree control loop；(3) load control circuit (main vapour pressure/give coal)；(4)
Hearth vacuum control circuit；(5) flue gas oxygen content control loop；Optimize control；Optimal Control System is to original DCS system
System will not impact；Optimal Control System software has instrument fault diagnosis and operating trouble diagnostic function, once event occurs
Optimal control state can be cut to " manual " from " optimization " automatically by barrier, be simultaneously emitted by corresponding audio alert prompt；If running excellent
The industrial personal computer of networked control systems breaks down or crashes, and Optimal Control System will not transmit data, DCS system to former DCS system
Control can be switched into DCS system from Optimal Control System automatically by the decision logic of fault diagnosis, be simultaneously emitted by corresponding
Audio alert prompt；Optimal Control System has key excision function key.
Above-described embodiment is only better embodiment of the invention, therefore all according to structure described in present patent application range
It makes, the equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.
Claims (4)
1. a kind of boiler optimization combustion system, including boiler DCS control system；It is characterized by: the DCS control system is logical
Crossing OPC communication connection has optimizing regulating system；The optimizing regulating system includes the quick reflection system of gas pressure adjusting, draws
Optimum proportioning optimization system, the air-fuel of blowing match optimization system, steam temperature automatic regulating system, water auto-regulation system and fuel
Quick regulating system；The regulating system carries out variation adjusting to each parameter of original state, and optimal solution is found in adjusting；It adjusts
As follows: stateful by the institute of traversal history, when the state encountered is in the current situation optimal, then defaulting it is optimal shape
State；Successively compared with last data, and iteration is updated to current optimum state.
2. boiler optimization combustion system according to claim 1, it is characterised in that: when the regulating system is adjusted, not only
Compare with previous solution, also compare with the latter solution, if be updated to preceding state iteration than the Xie Douyou of front and back
Current optimal solution；When its completion optimum state of the first step, micro adjustment automatically is carried out to each parameter one by one, and most with original
Excellent state compares, and finds more excellent state.
3. boiler optimization combustion system according to claim 1, it is characterised in that: heredity is calculated built in the regulating system
Method obtains the search in calculating for solving to optimize.
4. boiler optimization combustion system according to claim 1, it is characterised in that: ant colony built in the regulating system is calculated
Method.
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| CN201910697232.XA CN110397950B (en) | 2019-07-30 | 2019-07-30 | Boiler optimization combustion system |
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| CN201910697232.XA CN110397950B (en) | 2019-07-30 | 2019-07-30 | Boiler optimization combustion system |
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| CN110397950A true CN110397950A (en) | 2019-11-01 |
| CN110397950B CN110397950B (en) | 2022-06-14 |
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Denomination of invention: A boiler optimal combustion system Effective date of registration: 20221027 Granted publication date: 20220614 Pledgee: Industrial and Commercial Bank of China Limited Qihe sub branch Pledgor: Shandong Laigang Yongfeng Steel and Iron Co.,Ltd. Registration number: Y2022980019837 |