CN106221709A - The control system of coke oven collecting main pressure - Google Patents
The control system of coke oven collecting main pressure Download PDFInfo
- Publication number
- CN106221709A CN106221709A CN201610600985.0A CN201610600985A CN106221709A CN 106221709 A CN106221709 A CN 106221709A CN 201610600985 A CN201610600985 A CN 201610600985A CN 106221709 A CN106221709 A CN 106221709A
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- China
- Prior art keywords
- suction
- control
- collecting main
- main pressure
- primary cooler
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B27/00—Arrangements for withdrawal of the distillation gases
- C10B27/06—Conduit details, e.g. valves
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
- C10B41/08—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke for the withdrawal of the distillation gases
Abstract
The present invention discloses the control system of a kind of coke oven collecting main pressure, including: discharge control module, for gathering collecting main pressure and detecting the aperture of discharge butterfly valve, and the aperture of self-adaptative adjustment discharge butterfly valve；Suction control module before primary cooler, for calculating coal resource according to collecting main pressure, the simulation of discharge butterfly valve opening, calculate coal gas conveying capacity according to suction simulation before primary cooler, and according to suction before coal resource control primary cooler, make coal gas conveying capacity keep balance with coal resource.The control system of coke oven collecting main pressure of the present invention, by simulation calculation coal resource and coal gas conveying capacity, the control of suction before primary cooler is taked coal gas conveying capacity follow the tracks of the mode of coal resource regulation, control coal gas amount to poised state, and combine discharge butterfly valve Self Adaptive Control, two aspects are coordinated to control, it is possible to when larger fluctuation occurs in the system collecting main pressure of running into, can maintain plateau by domination set tracheal pressure timely and effectively.
Description
Technical field
The present invention relates to technical field of automatic control, particularly relate to the control system of a kind of coke oven collecting main pressure.
Background technology
Refer to Fig. 1, coke oven (10,11) connected set trachea (12,13,14,15), discharge (12,13,14,15) is with cold
Drum system connects, and feed coal generates coke in the high temperature carbonization room of coke oven (10,11), and produces with a large amount of raw coke oven gas, logical
Cross at bridge tube, spray high pressure aqua ammonia formation strong suction, raw coke oven gas is sucked discharge (12,13,14,15), passes through blower unit
(20) in unit preceding pipeline system, provide suction, the coal gas of generation is transferred out, export change product system and be further processed.
Discharge (12,13,14,15) is respectively arranged with butterfly valve (16), in order to regulate collecting main pressure.Therefore, existing coke oven system
Unite by blower system control air quantity and combine discharge butterfly valve collecting main pressure is controlled regulation.
Collecting main pressure is very important technological parameter during coking produces, and the actual reflection of collecting main pressure is burner hearth pressure
Power, if collecting main pressure is too high, raw coke oven gas can be emerged from fire door, capping etc., can cause the wasting of resources, the most also can produce relatively
Big environmental pollution, deteriorates execute-in-place environment；If collecting main pressure is too low, air, possibly in burner hearth, makes coke in stove
Burning, this does not only result in coke ash increases, and coke ash at high temperature will corrode furnace wall brick, can reduce the use of coke oven
In the life-span, in the most also causing stove, gas temperature reduces, and causes heat energy consumption, also causes oxygen content in coal gas too high, impact
The multiple negative consequences such as the normal production in rear end product stage.
Therefore, necessary strict domination set tracheal pressure in coking produces so that it is keep stable.In prior art, to collection
The control mode of tracheal pressure is: regulated by suction before the machine before first cold electric fishing by blower unit (20) and big reflux inlet (21)
To certain value, control total blast volume, then control each gas collection overpressure by each discharge butterfly valve balance.
But above-mentioned control method there is problems in that during whole, to blower unit in blower system and return greatly
The control of stream valve is artificial manual mode, when blower unit rotating speed and big reflux inlet aperture control to a definite limitation, then by each collection
Trachea butterfly valve is automatically adjusted.But, coaling when running into coke furnace system, commutate or during the situation such as terminal temperature difference consumption is unstable, meeting
Cause collecting main pressure that larger fluctuation occurs, regulate total blast volume in this case through Non-follow control blower system, then by
Each discharge butterfly valve is automatically adjusted collecting main pressure, and this mode can not be in surely by domination set tracheal pressure timely and effectively
Fixed, that collecting main pressure fluctuation can not be solved in time problem.The most existing coke-oven gas-collector pressure control mode, at coke oven
When system collecting main pressure runs into larger fluctuation, can not adjust timely and effectively to steady statue.
Summary of the invention
It is an object of the invention to provide the control system of a kind of coke oven collecting main pressure, compared with prior art, running into
When there is larger fluctuation in coke furnace system overpressure, it is possible to regulation collecting main pressure is in steady statue timely and effectively.
For achieving the above object, the present invention provides following technical scheme:
A kind of control system of coke oven collecting main pressure, including:
Discharge control module, for gathering collecting main pressure and detecting the aperture of discharge butterfly valve, and self-adaptative adjustment
The aperture of discharge butterfly valve；
Suction control module before primary cooler, for calculating coal gas send out according to collecting main pressure, the simulation of discharge butterfly valve opening
Raw amount, calculates coal gas conveying capacity according to suction simulation before primary cooler, and according to suction before described coal resource control primary cooler,
Described coal gas conveying capacity is made to keep balance with described coal resource.
Alternatively, before described primary cooler, suction control module includes:
Big reflux inlet control unit, is used for controlling big reflux inlet aperture；
Air compressor control unit.For controlling blower speed；
Before described primary cooler, suction control module is according to suction before described coal resource control primary cooler, specifically includes:
Before described primary cooler, suction control module controls primary cooler by controlling big reflux inlet aperture or blower speed
Front suction.
Alternatively, before described primary cooler, suction control module includes:
Suction force range setup unit, for being divided into the upper limit, the upper limit, lower limit, lower limit four by suction before primary cooler
Scope, the upper limit, lower limit be characterized in reasonable suction numerical value when collecting main pressure is stablized corresponding to the discharge butterfly valve upper limit, lower limit,
The upper limit, lower limit are characterized in suction protection limit value corresponding when collecting main pressure is stablized.
Alternatively, described discharge control module includes setup unit, specifically includes:
Pressure divergence sets subelement, and for setting the upper limit of collecting main pressure deviation, lower limit, the upper limit, lower limit are used for table
The target zone of collection tracheal pressure control deviation, the upper limit of described pressure divergence, the setting of lower limit are carried out centered by zero point
Symmetrical setting；
Valve position sets subelement, for setting the open range of butterfly valve optimum performance；
Coefficient sets subelement, for setting pressure coefficient and the turnover panel coefficient of discharge.
Alternatively, described discharge control module also includes:
Automatic adjusument unit, for deviation size, bias direction and change of error trend according to collecting main pressure, and
Automatically PID ratio, differential and integral parameter is adjusted in conjunction with suction before primary cooler.
Alternatively, described discharge control module also includes:
Decoupling unit, for the change according to remaining set tracheal pressure and the change of coupled end butterfly valve valve position, to this gas collection
Identical or rightabout adjustment made by pipe butterfly valve.
Alternatively, described discharge control module also includes:
Suction allocation unit, for this collecting main pressure is made comparisons with each discharge average pressure, inclined according to both
Difference adjusts this discharge butterfly valve opening, is allocated suction；
Suction compensating unit, for adjusting discharge butterfly valve opening according to variation tendency and the size of suction before primary cooler.
Alternatively, before described primary cooler, suction control module also includes:
Aerator amplitude limit decoupling unit, for the default amplitude according to aerator, when current output aerator being detected
When amplitude is more than described default amplitude, controls aerator and suspend and control time out.
Alternatively, also include feedforward module, specifically include:
Switch compensation unit, for according to the change formation rule storehouse of collecting main pressure in coke oven commutation process, works as detection
According to described rule base, aerator is carried out output when being in commutation process to coke oven to compensate, including compensation time, compensation magnitude
And compensation bound.
Alternatively, described feedforward module also includes:
Coaling compensating unit, for according to the change formation rule storehouse of collecting main pressure during coke oven coal-charging, work as detection
It is in coke oven when coalingging process and according to described rule base, aerator is carried out output compensation, including compensation time, compensation magnitude
And compensation bound.
By technique scheme it can be seen that the control system of coke oven collecting main pressure provided by the present invention, including collection
Suction control module before trachea control module and primary cooler, wherein, discharge control module is used for gathering collecting main pressure and examining
Survey the aperture of discharge butterfly valve, and the aperture of self-adaptative adjustment discharge butterfly valve；Before primary cooler, suction control module is used for basis
The simulation of collecting main pressure, discharge butterfly valve opening calculates coal resource, calculates coal gas conveying according to suction simulation before primary cooler
Amount, makes coal gas conveying capacity and coal resource keep balance by suction before controlling primary cooler.
The stable precondition of coke oven collecting main pressure is that coal resource is consistent with coal gas conveying capacity, at coke furnace system
In, suction before primary cooler can reflect that coal gas conveying capacity, collecting main pressure and discharge butterfly valve opening can reflect coal resource,
Therefore can calculate coal gas conveying capacity according to suction simulation before primary cooler, simulate meter according to collecting main pressure and discharge butterfly valve opening
Calculate coal resource.Control system of the present invention passes through simulation calculation coal resource and coal gas conveying capacity, according to coal resource
With suction, total blast volume in control system before coal gas conveying capacity control primary cooler, control to make coal gas conveying capacity protect with coal resource
Maintain an equal level weighing apparatus, basically identical, and combines the discharge control module secondary distribution to suction, and self-adaptative adjustment discharge butterfly valve is opened
Degree, realizes domination set tracheal pressure and maintains plateau.
, there is bigger ripple when system runs into unexpected situation collecting main pressure in the control system of coke oven collecting main pressure of the present invention
Time dynamic, control total blast volume by suction before controlling primary cooler, control coal gas conveying capacity and keep balance with coal resource, and by collecting
Trachea controls the secondary distribution to suction, thus controls timely and effectively to make collecting main pressure keep steady statue.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of existing coke oven collecting main；
The schematic diagram of the control system of a kind of coke oven collecting main pressure that Fig. 2 provides for the embodiment of the present invention；
The schematic diagram of a kind of discharge control module that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in the present invention, real below in conjunction with the present invention
Execute the accompanying drawing in example, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described enforcement
Example is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, all should belong to present invention protection
Scope.
Refer to Fig. 2, for the schematic diagram of control system of a kind of coke oven collecting main pressure that the embodiment of the present invention provides, this
The control system of the coke oven collecting main pressure that embodiment provides includes:
Discharge control module 10, for gathering collecting main pressure and detecting the aperture of discharge butterfly valve, and self adaptation is adjusted
The aperture of whole discharge butterfly valve；
Suction control module 11 before primary cooler, for calculating coal gas according to collecting main pressure, the simulation of discharge butterfly valve opening
Generating capacity, calculates coal gas conveying capacity according to suction simulation before primary cooler, and inhales according to before described coal resource control primary cooler
Power, makes described coal gas conveying capacity keep balance with described coal resource.
By foregoing it can be seen that the control system of the present embodiment coke oven collecting main pressure, control mould including discharge
Suction control module 11 before block 10 and primary cooler, wherein, discharge control module 10 is used for gathering collecting main pressure and detecting collection
The aperture of trachea butterfly valve, and the aperture of self-adaptative adjustment discharge butterfly valve；Before primary cooler, suction control module 11 is for according to collection
The simulation of tracheal pressure, discharge butterfly valve opening calculates coal resource, calculates coal gas conveying capacity according to suction simulation before primary cooler,
Coal gas conveying capacity and coal resource is made to keep balance by suction before controlling primary cooler.
The stable precondition of coke oven collecting main pressure is that coal resource is consistent with coal gas conveying capacity, at coke furnace system
In, suction before primary cooler can reflect that coal gas conveying capacity, collecting main pressure and discharge butterfly valve opening can reflect coal resource,
Therefore can calculate coal gas conveying capacity according to suction simulation before primary cooler, simulate meter according to collecting main pressure and discharge butterfly valve opening
Calculate coal resource.Control system of the present invention passes through simulation calculation coal resource and coal gas conveying capacity, according to coal resource
With suction, total blast volume in control system before coal gas conveying capacity control primary cooler, control to make coal gas conveying capacity protect with coal resource
Maintain an equal level weighing apparatus, keeps basically identical, and combines the discharge control module secondary distribution to suction, self-adaptative adjustment discharge butterfly valve
Aperture, realizes domination set tracheal pressure and maintains plateau.
The control system of embodiment of the present invention coke oven collecting main pressure, occurs when system runs into unexpected situation collecting main pressure
During larger fluctuation, control total blast volume by suction before controlling primary cooler, control coal gas conveying capacity and keep balance with coal resource,
And controlled the secondary distribution to suction by discharge, thus control timely and effectively to make collecting main pressure keep steady statue.
In the present embodiment, concrete, before described primary cooler, suction control module 11 includes:
Big reflux inlet control unit 1101, is used for controlling big reflux inlet aperture；
Air compressor control unit 1102.For controlling blower speed；
Before described primary cooler, suction control module 11 is according to suction before described coal resource control primary cooler, specifically wraps
Include: before described primary cooler, suction control module 11 is by inhaling before controlling big reflux inlet aperture or blower speed control primary cooler
Power.
Before described primary cooler, the control of suction before primary cooler is used PID to control by suction control module 11, carries with coal gas
Amount is PID setting value, with coal resource for PID process variable, carries out PID control.Suction before controlling primary cooler, i.e. controls coal
During gas conveying capacity, can control by controlling the big reflux inlet aperture in cold drum system, or can also be by controlling cold drum system
In system, blower speed is controlled, or can also both control simultaneously, and concrete condition can be selected according to field apparatus situation
Select.
Concrete, when selecting to control blower speed, control method is: when coal gas conveying capacity is equal to coal resource
Time, control blower speed and keep constant；When coal gas conveying capacity is more than coal resource, controls blower speed and reduce；When
When coal gas conveying capacity is less than coal resource, controls blower speed and increase.
When selecting to control big reflux inlet aperture, control method is: when coal gas conveying capacity is equal to coal resource, control
Big reflux inlet aperture keeps constant；When coal gas conveying capacity is more than coal resource, controls big reflux inlet aperture and reduce；Work as coal gas
When conveying capacity is less than coal resource, controls big reflux inlet aperture and increase.
In the present embodiment, before described primary cooler, suction control module 11 includes:
Suction force range setup unit, for being divided into the upper limit, the upper limit, lower limit, lower limit four by suction before primary cooler
Scope, the upper limit, lower limit be characterized in reasonable suction numerical value when collecting main pressure is stablized corresponding to the discharge butterfly valve upper limit, lower limit,
The upper limit, lower limit are characterized in suction protection limit value corresponding when collecting main pressure is stablized.
When before primary cooler, suction control module 11 is according to current coal resource and coal gas conveying capacity, the coldest by controlling
Before device, suction sets up the poised state of coal gas amount, under current poised state, sets this balance by suction force range setup unit
Suction force range under state, including setting the upper limit of suction force range, the upper limit, lower limit and lower lower limit.The upper limit, lower limit are characterized in collection
Reasonable suction numerical value corresponding to the discharge butterfly valve upper limit, lower limit when tracheal pressure is stablized, with specific reference to collecting main pressure and butterfly
Suction corresponding when valve opening is normal is set；The upper limit, lower limit are characterized in suction corresponding when collecting main pressure is stablized
Protection limit value, can be set by the suction according to coalingging in system, under the thump factor such as commutation.
In the present embodiment, refer to Fig. 3, described discharge control module 10 includes setup unit 1001, specifically includes:
Pressure divergence sets subelement, and for setting the upper limit of collecting main pressure deviation, lower limit, the upper limit, lower limit are used for table
The target zone of collection tracheal pressure control deviation, the upper limit of described pressure divergence, the setting of lower limit are carried out centered by zero point
Symmetrical setting；
Valve position sets subelement, for setting the open range of butterfly valve optimum performance；
Coefficient sets subelement, for setting pressure coefficient and the turnover panel coefficient of discharge.
Wherein, pressure divergence sets subelement and divides the control target of collecting main pressure deviation, concrete setting discharge pressure
The upper limit of power deviation, lower limit, wherein the setting of pressure divergence bound carries out symmetrical setting, such as upper pressure limit centered by zero point
For 20Pa, low pressure limit is-20Pa.
Valve position sets subelement and is set in the range of 0～100 by butterfly valve opening, and the such as butterfly valve opening upper limit is
60%, butterfly valve lower limit is 40%.
Pressure coefficient and turnover panel coefficient represent the proportion that each discharge is shared in the controls, and usual pressure coefficient is more than
Turnover panel coefficient.
Described discharge control module 10 also includes Automatic adjusument unit 1002, for the deviation according to collecting main pressure
Size, bias direction and change of error trend, and suction adjusts PID ratio, differential and integral parameter automatically before combining primary cooler.
Specifically, Automatic adjusument unit 1002 according to the deviation size of collecting main pressure different phase, bias direction and
Change of error trend, in conjunction with suction before the machine before just cold electric fishing on the impact of collecting main pressure, automatic adjusting pid control parameter；
Inclined for collecting main pressure extent is divided into multiple interval, different interval corresponding different underlying parameters, each interval basis ginseng
Number realizes linear no-harass switch.Collecting main pressure bias direction and trend are divided into 4 intervals, i.e. under principal-employment rising, principal-employment
Fall, minus tolerance rise, minus tolerance declines.Underlying parameter is corrected by 4 intervals.According to suction before primary cooler to collecting main pressure
Impact, sets polygronal function, and before calculating primary cooler, suction affects coefficient, is corrected underlying parameter.
Therefore, the control system of the present embodiment coke oven collecting main pressure, defeated by simulation calculation coal resource and coal gas
The amount of sending, the control of suction is taked coal gas conveying capacity to follow the tracks of the mode of coal resource regulation, is not required to revise manually, perfect suitable
Control requirement under answering different suction to require, Consistent Sets trachea butterfly valve opening while regulation suction, make at discharge butterfly valve
In optimum range, prepare most for the impact that is likely to occur next time.There is multiple equilibrium point, more preferable adaptability；By cold drum system
System and discharge butterfly valve are coordinated to control, and are adjusted simultaneously, and execution efficiency is high, the larger fluctuation produced for collecting main pressure,
Steady statue can be maintained by domination set tracheal pressure timely and effectively,
Further, Adaptive PID Control discharge butterfly valve is used, according to actual condition automatic adjusting pid parameter, can be well
Adapt to collecting main pressure time variation, nonlinear feature.Without manual amendment's parameter, optimize control.
It is further preferred that in the present embodiment, discharge control module 10 also includes: decoupling unit 1003, for basis
The change of remaining set tracheal pressure and the change of coupled end butterfly valve valve position, make identical or rightabout to this discharge butterfly valve
Adjust.
Coke furnace system is generally of organizes discharge more, parallel with one another between each discharge, shares a suction house steward, originally
When suction distribution is uneven before cooler, between each collecting main pressure, produce deviation, create the mutual flowing of gas between discharge.When
Somewhere collecting main pressure is hit and produces sudden change, increases the deviation between collecting main pressure, if the most corresponding collecting main pressure
It is in low-end trim, then negative coupling will be produced.Therefore this set-up of control system decoupling unit, by detecting remaining gas collection
Pipe pressure change and valve position situation of change, make corresponding equidirectional adjustment, to eliminate coupling to this discharge.Decoupling unit
Output can compensate on the outfan that PID controls, and sets decoupling coefficient and bound is calibrated and protects.
Preferably, described discharge control module 10 also includes suction allocation unit 1004, for by this collecting main pressure
Make comparisons with each discharge average pressure, according to both deviation adjustment discharge butterfly valve openings, suction is allocated.Root
Make comparisons with total system average pressure according to current collecting main pressure, according to result of the comparison deviation adjustment discharge valve opening,
Suction is allocated, to reach the purpose of balancing gas collecting pipe pressure.The output of suction allocation unit 1004 can compensate for controlling at PID
On the outfan of system, set suction partition coefficient and bound and deviation dead band is calibrated and protects.
Also include suction compensating unit 1005, for adjusting discharge according to variation tendency and the size of suction before primary cooler
Butterfly valve opening.According to the impact on collecting main pressure of the suction before primary cooler, adjust by variation tendency and the size of suction before machine
Discharge butterfly valve opening, to reach the purpose controlled in advance.The output of suction compensating unit can compensate for the outfan controlled at PID
On, set suction penalty coefficient and bound and deviation dead band is calibrated and protects.
Therefore, the control system of the present embodiment coke oven collecting main pressure, discharge butterfly valve controls to have employed pressure decoupling mould
Type, pressure distribution model, pressure compensation model, optimize the control to system collecting main pressure.
In the present embodiment, before described primary cooler, suction control module 11 also includes aerator amplitude limit decoupling unit, for root
According to the default amplitude of aerator, when current output amplitude aerator being detected is more than described default amplitude, control aerator
Suspend and control time out.Preset default amplitude and the time out of aerator, after amplitude limit is had an effect, cold drum
System controls to be converted to tracing mode, and in transformation process, cold drum system regulation process is: slow down → keep → opposite direction, whole mistake
Journey can be interrupted by the system halt time set and revert to be automatically adjusted pattern.Overall process does not affect MANUAL CONTROL mode.
The present embodiment control system also includes feedforward module 12, specifically includes:
Switch compensation unit, for according to the change formation rule storehouse of collecting main pressure in coke oven commutation process, works as detection
According to described rule base, aerator is carried out output when being in commutation process to coke oven to compensate, including compensation time, compensation magnitude
And compensation bound.According to the impact on collecting main pressure of the coke oven commutation process, formation rule storehouse.Carry out the output of aerator
Compensating, output is superimposed upon cold drum system regulation outfan, and setting compensation time, compensation magnitude, that compensation bound carries out system is excellent
Change protection.
Coaling compensating unit, for according to the change formation rule storehouse of collecting main pressure during coke oven coal-charging, work as detection
It is in coke oven when coalingging process and according to described rule base, aerator is carried out output compensation, including compensation time, compensation magnitude
And compensation bound.According to impact on collecting main pressure during switch high-pressure ammonia of coalingging and coaling, formation rule storehouse.
The output carrying out aerator compensates, and output is superimposed upon cold drum system regulation outfan, setting compensation time, compensation magnitude, compensation
Bound carries out system optimization protection.
Therefore, the control system of the present embodiment coke oven collecting main pressure, cause collecting main pressure to fluctuate by comprehensive analysis
Regularity factor, detect emergency case such as commutate, the situation such as coaling time, according to the time of generation and pressure trend,
According to existing Changing Pattern, control the most accordingly, the most effectively, thus reduce the impact for system.
The control system of coke oven collecting main pressure of the present invention, by simulation calculation coal resource and coal gas conveying capacity,
Under different suction force state, equilibrium establishment point control collecting main pressure remains stable, has multiple stable point, is suitable for factory's coal gas and sends out
Raw amount, with the change of Plan rescheduling of coalingging, adapts to thump and the coupling phenomenon of various pressure；And avoid conventional control, take
Coal gas amount increment control algorithm, suction, optimal blower speed or big reflux inlet before Automatic-searching optimum valve aperture, optimal primary cooler
Aperture.Give full play to the maximum performance of equipment, it is to avoid collecting main pressure is too high causes coal gas loss, increases coal-gas recovering amount, sends out
Wave the aerator (systemic circulation) the regulation advantage to suction, reduce production run cost；Contribute to reducing environmental pollution, improving collection
While tracheal pressure, optimize the effect of smoke abatement and dust control of coalingging well.
Above the control system of coke oven collecting main pressure provided by the present invention is described in detail.Used herein
Principle and the embodiment of the present invention are set forth by specific case, and the explanation of above example is only intended to help to understand
The method of the present invention and core concept thereof.It should be pointed out that, for those skilled in the art, without departing from this
On the premise of inventive principle, it is also possible to the present invention is carried out some improvement and modification, these improve and modification also falls into the present invention
In scope of the claims.
Claims (10)
1. the control system of a coke oven collecting main pressure, it is characterised in that including:
Discharge control module, for gathering collecting main pressure and detecting the aperture of discharge butterfly valve, and self-adaptative adjustment gas collection
The aperture of pipe butterfly valve；
Suction control module before primary cooler, for calculating coal resource according to collecting main pressure, the simulation of discharge butterfly valve opening,
Calculate coal gas conveying capacity according to suction simulation before primary cooler, and according to suction before described coal resource control primary cooler, make institute
State coal gas conveying capacity and keep balance with described coal resource.
2. control system as claimed in claim 1, it is characterised in that before described primary cooler, suction control module includes:
Big reflux inlet control unit, is used for controlling big reflux inlet aperture；
Air compressor control unit.For controlling blower speed；
Before described primary cooler, suction control module is according to suction before described coal resource control primary cooler, specifically includes:
Before described primary cooler, suction control module is by inhaling before controlling big reflux inlet aperture or blower speed control primary cooler
Power.
3. control system as claimed in claim 1, it is characterised in that before described primary cooler, suction control module includes:
Suction force range setup unit, for suction before primary cooler being divided into the upper limit, the upper limit, lower limit, four scopes of lower limit,
The upper limit, lower limit are characterized in reasonable suction numerical value when collecting main pressure is stablized corresponding to the discharge butterfly valve upper limit, lower limit, upper
Limit, lower limit are characterized in suction protection limit value corresponding when collecting main pressure is stablized.
4. control system as claimed in claim 1, it is characterised in that described discharge control module includes setup unit, tool
Body includes:
Pressure divergence sets subelement, and for setting the upper limit of collecting main pressure deviation, lower limit, the upper limit, lower limit are used for characterizing collection
The target zone of tracheal pressure control deviation, the upper limit of described pressure divergence, the setting of lower limit carry out symmetry centered by zero point
Set；
Valve position sets subelement, for setting the open range of butterfly valve optimum performance；
Coefficient sets subelement, for setting pressure coefficient and the turnover panel coefficient of discharge.
5. control system as claimed in claim 4, it is characterised in that described discharge control module also includes:
Automatic adjusument unit, for deviation size, bias direction and change of error trend according to collecting main pressure, and combines
Before primary cooler, suction adjusts PID ratio, differential and integral parameter automatically.
6. control system as claimed in claim 5, it is characterised in that described discharge control module also includes:
Decoupling unit, for the change according to remaining set tracheal pressure and the change of coupled end butterfly valve valve position, to this discharge butterfly
Identical or rightabout adjustment made by valve.
7. control system as claimed in claim 6, it is characterised in that described discharge control module also includes:
Suction allocation unit, for being made comparisons with each discharge average pressure by this collecting main pressure, adjusts according to both deviations
Whole discharge butterfly valve opening, is allocated suction；
Suction compensating unit, for adjusting discharge butterfly valve opening according to variation tendency and the size of suction before primary cooler.
8. control system as claimed in claim 1, it is characterised in that before described primary cooler, suction control module also includes:
Aerator amplitude limit decoupling unit, for the default amplitude according to aerator, when current output amplitude aerator being detected
During more than described default amplitude, control aerator and suspend and control time out.
9. control system as claimed in claim 1, it is characterised in that also include feedforward module, specifically include:
Switch compensation unit, for according to the change formation rule storehouse of collecting main pressure in coke oven commutation process, when Jiao being detected
According to described rule base, aerator is carried out output when stove is in commutation process to compensate, including the compensation time, compensation magnitude and
Compensate bound.
10. control system as claimed in claim 9, it is characterised in that described feedforward module also includes:
Coaling compensating unit, for according to the change formation rule storehouse of collecting main pressure during coke oven coal-charging, when Jiao being detected
Stove be in when coalingging process according to described rule base to aerator carry out output compensate, including the compensation time, compensation magnitude and
Compensate bound.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575955A (en) * | 2018-12-20 | 2019-04-05 | 中冶焦耐(大连)工程技术有限公司 | A kind of non-maintaining coke oven bridge tube pressure-measuring system and method automatically |
| CN110713841A (en) * | 2019-10-21 | 2020-01-21 | 马鞍山钢铁股份有限公司 | Method for repairing failure of PROven system of coke oven |
| CN114517100A (en) * | 2021-12-31 | 2022-05-20 | 云南煤业能源股份有限公司 | Coke oven safety heating control system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1546466A1 (en) * | 1988-05-03 | 1990-02-28 | Производственно-техническое предприятие Специализированного треста "Укрэнергочермет" | Method of automatic control of suction of gas from coke batteries |
| KR20010060844A (en) * | 1999-12-28 | 2001-07-07 | 이구택 | Method for controlling flow of gas in oven chamber |
| CN101070477A (en) * | 2007-07-04 | 2007-11-14 | 中控科技集团有限公司 | Multi-coke-oven gas-colluection-pipe pressure control apparatus and method |
| CN201962242U (en) * | 2011-02-09 | 2011-09-07 | 景德镇市焦化工业集团有限责任公司 | Integrated control system for coke oven coking chamber pressure and raw coal gas transmission |
| CN102433134A (en) * | 2011-10-08 | 2012-05-02 | 莱芜钢铁集团电子有限公司 | Method and system for controlling gas-collecting tube pressure of coke oven |
| CN104498058A (en) * | 2014-12-31 | 2015-04-08 | 太原重工股份有限公司 | Pressure balance control method for coke oven gas collector |
-
2016
- 2016-07-26 CN CN201610600985.0A patent/CN106221709A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1546466A1 (en) * | 1988-05-03 | 1990-02-28 | Производственно-техническое предприятие Специализированного треста "Укрэнергочермет" | Method of automatic control of suction of gas from coke batteries |
| KR20010060844A (en) * | 1999-12-28 | 2001-07-07 | 이구택 | Method for controlling flow of gas in oven chamber |
| CN101070477A (en) * | 2007-07-04 | 2007-11-14 | 中控科技集团有限公司 | Multi-coke-oven gas-colluection-pipe pressure control apparatus and method |
| CN201962242U (en) * | 2011-02-09 | 2011-09-07 | 景德镇市焦化工业集团有限责任公司 | Integrated control system for coke oven coking chamber pressure and raw coal gas transmission |
| CN102433134A (en) * | 2011-10-08 | 2012-05-02 | 莱芜钢铁集团电子有限公司 | Method and system for controlling gas-collecting tube pressure of coke oven |
| CN104498058A (en) * | 2014-12-31 | 2015-04-08 | 太原重工股份有限公司 | Pressure balance control method for coke oven gas collector |
Non-Patent Citations (3)
| Title |
|---|
| 薛润林等: "《集气管压力自动调节的改进》", 《燃料与化工》 * |
| 陈伟等: "《基于Profibus的焦炉集气管分布式压力控制系统设计》", 《电气传动》 * |
| 麦雪凤等: "《焦炉集气管压力模糊解耦及吸力协调控制与应用》", 《冶金自动化》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575955A (en) * | 2018-12-20 | 2019-04-05 | 中冶焦耐(大连)工程技术有限公司 | A kind of non-maintaining coke oven bridge tube pressure-measuring system and method automatically |
| CN110713841A (en) * | 2019-10-21 | 2020-01-21 | 马鞍山钢铁股份有限公司 | Method for repairing failure of PROven system of coke oven |
| CN110713841B (en) * | 2019-10-21 | 2021-02-02 | 马鞍山钢铁股份有限公司 | Method for repairing failure of PROven system of coke oven |
| CN114517100A (en) * | 2021-12-31 | 2022-05-20 | 云南煤业能源股份有限公司 | Coke oven safety heating control system and method |
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