CN108614511A - A kind of advanced absorption slot sequential control algorithm - Google Patents
A kind of advanced absorption slot sequential control algorithm Download PDFInfo
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- CN108614511A CN108614511A CN201810333465.7A CN201810333465A CN108614511A CN 108614511 A CN108614511 A CN 108614511A CN 201810333465 A CN201810333465 A CN 201810333465A CN 108614511 A CN108614511 A CN 108614511A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
Abstract
The invention discloses a kind of advanced absorption slot sequential control algorithms, including hot-blast valve, heater, cold blast sliding valve, fresh windmill, flue gas leading, dirty gas windmill, nitrogen tube, steam pipe, the small valve of steam, rear steam valve, preceding steam valve, nitrogen valve, air bleeding valve, the small valve of the first nitrogen, dirty air valve, fresh air-valve, main valve, the small valve of the second nitrogen, lower distillation air valve, absorption slot, upper distillation air valve, the small valve of distillation gas, soft water mouth, waste water mouth and distillation gas port.The present invention gives full play to the subjective initiative of PLC control devices, abandons the conventional process of logic judgment, and bonding apparatus feature is arranged using time zone, plays time and space feature, understandable using simplicity in equipment, cuts performance stabilization；The a large amount of logic step of original system has been abandoned, application program is enormously simplified, has been convenient for later maintenance, the equipment for also allowing for the later stage is expanded.
Description
Technical field
The present invention relates to a kind of control algolithm, specially a kind of advanced absorption slot sequential control algorithm belongs to waste gas pollution control and treatment
Applied technical field.
Background technology
Entire exhaust-gas treatment and recovery control system scheme include waste gas collecting system, exhaust gas purifying treatment system, row
Wind system, major function are gas sampling and exhaust gas purifying treatment system.Waste gas collecting system includes mainly hood,
Volume damper, pipeline.Exhaust gas purifying treatment system includes mainly deduster, condenser, activated carbon adsorption device.Absorbent is
The main coal body of exhaust gas is handled, its property and concentration is matched according to the property of different exhaust gas, and unit-gas is handled
Consumption, be the ratio of the molar flow by calculating absorbent and inert gas to determine.
According to technological requirement, the difficult point of this system is more demanding to chain control.What original automatic control system used
There are security risks for data collection and control algolithm, and with ageing equipment, process modification, chain function realization is extremely difficult,
And there are wretched insufficiency, the maintainability of system is basic to be lost for the visualization of HMI system and operability.
For the safety interlocking of the various dangerous situations in waste gas pollution control and treatment and recycling, new system needs to use advanced control
System carries out chain function realization, acts the reliable and person of being conveniently operated in time and watches current chain state.Control system control
It makes each absorber and executes adsorption process time, desorption process time and drying process time according to actual needs time-switching
And periodic cycle；Robot control system(RCS) combines original and subsequent upgrade equipment mechanical property, research new algorithm, using newly setting
Standby, new logic realizes that safety, visualization, operability and the maintainability of automatic control system seem particularly necessary, because
This, proposes a kind of advanced absorption slot sequential control algorithm regarding to the issue above.
Invention content
The purpose of the present invention is that solve the above-mentioned problems and provides a kind of advanced absorption slot sequential control algorithm, leads to
The mutual overlap joint of PLC software multi-clocks is crossed, and is combined with mechanical location detecting element, is realized between absorbing groove portion step by step
Compact combination and effectively connection.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of advanced absorption slot, including absorbs slot, the suction
The top for receiving slot is connected with air bleeding valve, and is connected with rear steam valve and nitrogen on the absorption slot of the side of the air bleeding valve
Valve；Steam valve is connected with the small valve of steam and preceding steam valve after described, and the preceding steam valve is connected with steam pipe；The nitrogen valve
It is connected with nitrogen tube；The bottom for absorbing slot is connected with main valve and upper distillation air valve, and the upper distillation air valve is connected with newly
Fresh air-valve and the small valve of the second nitrogen；The fresh air-valve is connected with the small valve of the first nitrogen, and the small valve of the first nitrogen is connected with
Flue gas leading；The dirt air valve is connected with dirty gas windmill；The fresh air-valve is connected with cold blast sliding valve, and the cold blast sliding valve is parallel with two
A heater, hot-blast valve, and connect between the heater and hot-blast valve；One end of the cold blast sliding valve connects fresh windmill；Institute
The one end for stating the small valve of the second nitrogen is connected with nitrogen tube；It is connected with distillation air valve between the main valve and the absorption slot, and
One end of the upper distillation air valve is connected with lower distillation air valve and the small valve of distillation gas；One end of the small valve of distillation gas is connected with soft
The mouth of a river and waste water mouth；The upper distillation air valve is connected with lower distillation air valve, and one end of the lower distillation air valve is connected with distillation
Gas port.
A kind of advanced absorption slot sequential control algorithm, includes the following steps：
Step A, it absorbs slot and enters air inlet step：Limit switch signal is fed back to control panel after gear-box positioning, otherwise can stop automatically,
Wherein, slot valve position is absorbed：Main valve, dirty air valve, air bleeding valve are opened, fresh air-valve, noble gas valve, dual distillation air valve, dual is closed
The signal of steam valve, switch is fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；It closes
Main valve compels crowded angle valve, opens the small valve of dual distillation air valve and the small valve of dual steam valve；Each absorption slot is not all chain；Absorb slot gear
Case and valve position signal are all correct, and inlet period terminates；
When step B, absorbing slot and changing all valves by air inlet and close step, change step cresset it is bright after, it is then bright to change slot cresset, at this time again
Raw lamp can shift to time one slot of registering and execute action；It absorbs slot and enters all valves closings：Limit switch after gear-box positioning, signal feedback
To control panel, it otherwise can stop automatically, be shown by alarm and signal lamp；Absorb slot valve position：Close All, signal feedback
To control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；It opens main valve and compels crowded angle valve, dual distillation gas
The small valve of valve and the small valve of dual steam valve；Each absorption slot is not all chain；It absorbs slot gear-box and valve position signal is all correct, control
The fully closed indicator light of moushroom valve is bright, and all valve closing times terminate；
Step C, it when absorption slot shifts to noble gas step by the closing of all valves, changes the bright expression of step lamp and changes step；It absorbs slot and enters noble gas：
Limit switch after gear-box positioning, signal are fed back to control panel, otherwise can stop to be shown automatically by alarm and signal lamp；
Absorb slot valve position：Noble gas valve, dual distillation air valve are opened, main valve, dirty air valve, air bleeding valve, fresh air-valve, dual steam valve is closed, opens
The signal of pass is fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；It opens main valve and compels crowded angle
Valve, the small valve of dual steam valve, close the dual small valve of distillation air valve, and evaporator automatic drain valve is opened；Regeneration tank and other slots all connect
Lock；Slot is absorbed at this time to start to pour into noble gas, if inert gas pressure is less than lower limit, even if the time terminates still change step, is inhaled
It receives slot gear-box and valve position signal is all correct, inert gas pressure is normal, and the noble gas time terminates；
Step D, it when absorption slot is shifted to by noble gas, changes the bright expression of step lamp and changes step；Slot is absorbed to enter：Gear-box positions
Limit switch signal is fed back to control panel afterwards, otherwise can stop automatically, to be shown by alarm and signal lamp, evaporator is automatic
Drain valve closes；Absorb slot valve position：Open dual distillation air valve, dual steam valve, close main valve, dirty air valve, air bleeding valve, fresh air-valve,
Noble gas valve, switching signal are fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；Open main valve
Compel crowded angle valve, closes the small valve of dual distillation air valve, the small valve of dual steam；Regeneration tank and other slots are all chain；Slot is absorbed at this time to open
Beginning pours into steam, and when vapor (steam) temperature or the super lower limit of pressure, main steam valve can be automatically closed, even if the time terminates still change step
Suddenly；In going when condenser cooling water temperature over-range, main steam valve can chain closing suspend and go, but timer continues to count
When, the time terminates, and will not change step, and the cooling water temperatures such as need, which drop in control parameter, just changes step；Condenser row in going
When gas temperature over-range, row's air triple valve can the row's of automatic opening air, main steam valve can chain closing suspend and go, but timer
Timing is still will continue to, the time terminates, and will not change step, and the delivery temperatures such as need, which drop in control parameter, just changes step；Remove knot
Absorb slot lower layer temperature before beam and require more than the upper limit DEG C, otherwise the time terminate not change step still, continue to ensure completely,
To lower layer's temperature up to DEG C or more just restore change step；It absorbs slot gear-box and valve position signal is all correct, control parameter all reaches
Mark, goes the time to terminate；
When step E, absorbing slot by removing change release of pressure, changes the bright expression of step signal lamp and change step；It absorbs slot and enters release of pressure：Gear-box
After positioning, limit switch signal is fed back to control panel, otherwise can stop automatically, to be shown by alarm and signal lamp；It absorbs
Slot valve position：Dual distillation air valve is opened, main valve, dirty air valve, air bleeding valve, fresh air-valve, noble gas valve, dual steam valve, switch letter are closed
Number be fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；Main valve is opened to compel and angle valve, dual
The small valve of steam valve closes the dual small valve of distillation air valve；Regeneration tank is not chain, and other slots are all chain；Fresh windmill starts fortune automatically
Turn；It absorbs slot gear-box and valve position signal is all correct, the release of pressure time terminates；
Step F, it when absorption slot shifts to dry by release of pressure, changes the bright expression of step lamp and changes step；It absorbs slot and enters drying：Gear-box positions
Afterwards, limit switch；Signal is fed back to control panel, otherwise can stop automatically, to be shown by alarm and signal lamp；Absorb slot valve
Position：Main valve, air bleeding valve, fresh air-valve are opened, dirty air valve, noble gas valve, dual distillation air valve, dual steam valve are closed, switching signal is returned
Be fed to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；Open the small valve of dual distillation air valve, dual
The small valve of steam valve closes main valve and compels crowded angle valve；Regeneration tank and other slots be not all chain；Fresh wind radiator valve is opened, cold blast sliding valve is closed；
It absorbs slot gear-box and valve position signal is all correct, drying time terminates；
When step G, absorbing slot by drying change cooling, changes the bright expression of step lamp and change step；Absorb slot change cooling：Gear-box is fixed
Limit switch behind position；Signal is fed back to control panel, otherwise can stop automatically, to be shown by alarm and signal lamp；Absorb slot
Valve position：Main valve, air bleeding valve, fresh air-valve are opened, dirty air valve, noble gas valve, dual distillation air valve, dual steam valve, switching signal are closed
Be fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；Open the small valve of dual distillation air valve, double
The small valve of weight steam valve closes main valve and compels crowded angle valve；Regeneration tank is chain regarding lower layer's temperature setup parameter；Other slots are not chain；Guan Xin
Fresh wind radiator valve, opens cold blast sliding valve；Cooling to terminate to absorb slot lower layer temperature not up to lower limit set, then gear-box is chain does not release,
Even if terminating cooling time not change step still, continue cooling until temperature just changes step up to lower limit, safety when ensuring air inlet again；
It absorbs slot gear-box and valve position signal is all correct, absorb bath temperature degree and reach control parameter standard, terminate cooling time；
Step H, it when absorption slot shifts to exhaust by cooling, changes the bright expression of step lamp and changes step；It absorbs slot and enters exhaust：Gear-box positions
Limit switch signal is fed back to control panel afterwards, otherwise can stop automatically, to be shown by alarm and signal lamp；Absorb slot valve
Position：Begin to rehearse air valve, closes main valve, dirty air valve, fresh air-valve, noble gas valve, dual distillation air valve, dual steam valve, and switching signal is returned
Be fed to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；It opens main valve and compels crowded angle valve, dual distillation
The small valve of air valve, the small valve of dual steam valve；Regeneration tank and other slots be not all chain；It absorbs slot gear-box and valve position signal is whole just
Really, evacuation time terminates to change to next step：Air inlet；When absorbing slot by exhaust change air inlet, changes the bright expression of step lamp and change step；
Though step I, control panel is stopped automatic reason as regeneration tank gear-box no-fix or is positioned because of the instrument control device number of writing extremely
Non- feedback control panel；Gear-box need to be manipulated to positioning or overhauling instrument control device, make signal normal CQI feedback to control panel, Cai Nengzai
Cut automatic operating；It has registered rather than regenerated slot, when the non-feedback of gear-box signal, though it will not cause to stop automatic, the slot meeting
There is valve dislocation false alarm and cresset；When there are valve bit-errors in the slot registered, and though regeneration tank in what step, all operate to when
Between terminate, but do not change step；When there are valve bit-errors in the slot registered, it is necessary to which it is normal to handle the signal made, valve bit-errors message
After disappearance, regeneration tank could restore normally to replace step；If can not handle make valve bit-errors message disappear when, which must first move back
Go out to register, so that regeneration tank is restored normal and replace step；Regeneration tank stops automatically, and abnormality processing is appropriate and blackout, if again
When cutting automatic operating, step switch is changed if you need to touch, then needs to cut next step automatic operating again to the end of this Step Time,
It is such as not required to touch and changes step switch, then it can be in cutting automatic operating in this step；
Though step J, regeneration tank valve bit-errors reason is valve position no-fix or positioning because of the non-feedback control of the instrument control device number of writing extremely
Disk processed；When valve bit-errors message occurs in regeneration tank, if one minute untreated makes that its signal restores normal, valve bit-errors message disappears
Lose, then will produce and stop automatic, shown by alarm and signal lamp, though or Step Time terminate to remain in former step and
Next step will not be changed.
The beneficial effects of the invention are as follows：The present invention gives full play to the subjective initiative of PLC control devices, abandons logic judgment
Conventional process, bonding apparatus feature is arranged using time zone, plays time and space feature, and easy understandable, cutting property is used in equipment
It can stablize；The a large amount of logic step of original system has been abandoned, application program is enormously simplified, has been convenient for later maintenance, also allows for
The equipment in later stage is expanded.
Description of the drawings
Fig. 1 is that the present invention absorbs slot structure connection diagram；
Fig. 2 is the logic control chart of the present invention；
Fig. 3 is gear-box time diagram of the present invention；
Fig. 4 is time zone analysis chart of the present invention.
In figure：1, hot-blast valve, 2, heater, 3, cold blast sliding valve, 4, fresh windmill, 5, flue gas leading, 6, dirty gas windmill, 7, nitrogen
Pipe, 8, steam pipe, 9, the small valve of steam, 10, rear steam valve, 11, preceding steam valve, 12, nitrogen valve, 13, air bleeding valve, the 14, first nitrogen
The small valve of gas, 15, dirty air valve, 16, fresh air-valve, 17, main valve, the 18, second small valve of nitrogen, 19, lower distillation air valve, 20, absorb slot,
21, upper distillation air valve, 22, the small valve of distillation gas, 23, soft water mouth, 24, waste water mouth, 25, distillation gas port.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Refering to Figure 1, a kind of advanced absorption slot, including slot 20 is absorbed, the top for absorbing slot 20 is connected with row
Air valve 13, and it is connected with rear steam valve 10 and nitrogen valve 12 on the absorption slot 20 of the side of the air bleeding valve 13；After described
Steam valve 10 is connected with the small valve 9 of steam and preceding steam valve 11, and the preceding steam valve 11 is connected with steam pipe 8；The nitrogen valve
12 are connected with nitrogen tube 7；The bottom for absorbing slot 20 is connected with main valve 17 and upper distillation air valve 21, and the upper distillation air valve
21 are connected with fresh air-valve 16 and the small valve of the second nitrogen 18；The fresh air-valve 16 is connected with the small valve 14 of the first nitrogen, and described
The small valve of first nitrogen 14 is connected with flue gas leading 5；The dirt air valve 15 is connected with dirty gas windmill 6；The fresh air-valve 16 is connected with
Cold blast sliding valve 3, and there are two heater 2, hot-blast valves 1 for 3 parallel connection of the cold blast sliding valve, and gone here and there between the heater 2 and hot-blast valve 1
Connection；One end of the cold blast sliding valve 3 connects fresh windmill 4；One end of the small valve of second nitrogen 18 is connected with nitrogen tube 7；It is described
Distillation air valve 21 is connected between main valve 17 and the absorption slot 20, and one end of the upper distillation air valve 21 is connected with lower steaming
Evaporate air valve 19 and the small valve of distillation gas 22；One end of the small valve of the distillation gas 22 is connected with soft water mouth 23 and waste water mouth 24；On described
Distillation air valve 21 is connected with lower distillation air valve 19, and one end of the lower distillation air valve 19 is connected with distillation gas port 25.
A kind of advanced absorption slot sequential control algorithm, includes the following steps：
Step A, it absorbs slot 20 and enters air inlet step：Limit switch signal is fed back to control panel after gear-box positioning, otherwise can stop certainly
It is dynamic, wherein to absorb 20 valve position of slot：Main valve 17, dirty air valve 15, air bleeding valve 13 are opened, fresh air-valve 16, noble gas valve, dual is closed
Distill air valve, dual steam valve, the signal of switch is fed back to control panel, otherwise can valve bit-errors, pass through alarm and signal lamp
It is shown；It closes main valve 17 and compels crowded angle valve, open the small valve of dual distillation air valve and the small valve of dual steam valve；It is each to absorb slot 20 all
It is not chain；It absorbs 20 gear-box of slot and valve position signal is all correct, inlet period terminates；
When step B, absorbing slot 20 and changing all valves by air inlet and close step, change step cresset it is bright after, it is then bright to change slot cresset, at this time
Regeneration lamp can shift to time one slot of registering and execute action；It absorbs slot 20 and enters all valves closings：Limit switch after gear-box positioning, signal
It is fed back to control panel, otherwise can stop automatically, be shown by alarm and signal lamp；Absorb 20 valve position of slot：Close All, letter
Number be fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；It opens main valve 17 and compels crowded angle valve, double
The small valve of redistillation air valve and the small valve of dual steam valve；Each absorption slot 20 is not all chain；Absorb 20 gear-box of slot and valve position signal
All correct, the control fully closed indicator light of moushroom valve is bright, and all valve closing times terminate；
Step C, it when absorption slot 20 shifts to noble gas step by the closing of all valves, changes the bright expression of step lamp and changes step；Slot 20 is absorbed to enter
Noble gas：Limit switch after gear-box positioning, signal are fed back to control panel, otherwise can stop to carry out automatically by alarm and signal lamp
Display；Absorb 20 valve position of slot：Noble gas valve, dual distillation air valve are opened, main valve 17, dirty air valve 15, air bleeding valve 13, fresh air-valve are closed
16, the signal of dual steam valve, switch is fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp
Show；It opens main valve 17 and compels crowded angle valve, the small valve of dual steam valve, close the dual small valve of distillation air valve, evaporator automatic drain valve is opened；Regeneration
Slot and other slots are all chain；It absorbs slot 20 at this time to start to pour into noble gas, if inert gas pressure is less than lower limit, even if the time ties
Beam will not still change step, absorb 20 gear-box of slot and valve position signal is all correct, inert gas pressure is normal, and the noble gas time terminates；
Step D, it when absorption slot 20 is shifted to by noble gas, changes the bright expression of step lamp and changes step；Slot 20 is absorbed to enter：Gear-box
Limit switch signal is fed back to control panel after positioning, otherwise can stop automatically, to be shown by alarm and signal lamp, evaporator
Automatic drain valve closes；Absorb 20 valve position of slot：Dual distillation air valve, dual steam valve are opened, main valve 17, dirty air valve 15, air bleeding valve are closed
13, fresh air-valve 16, noble gas valve, switching signal are fed back to control panel, otherwise can valve bit-errors, by alarm and signal lamp into
Row display；It opens main valve 17 and compels crowded angle valve, close the small valve of the small valve of dual distillation air valve, dual steam 9；Regeneration tank and other slots all connect
Lock；Slot 20 is absorbed at this time starts to pour into steam, when vapor (steam) temperature or the super lower limit of pressure, main steam valve can be automatically closed, even if when
Between terminate still change step；In going when condenser cooling water temperature over-range, main steam valve can chain closing suspend and go, but
Timer continues to timing, and the time terminates, and will not change step, and the cooling water temperatures such as need, which drop in control parameter, just changes step；
In going when condenser exhaust gas temperature over-range, row's air triple valve can the row's of automatic opening air, main steam valve chain can close temporarily
Stop, but timer still will continue to timing, the time terminates, and will not change step, and the delivery temperatures such as need drop in control parameter
Just change step；Go terminate before absorb 20 lower layer's temperature of slot require more than 105 DEG C of the upper limit, otherwise the time terminate not change step still, after
It is continuous to go to ensure completely, until lower layer's temperature is just restored to change step up to 105 DEG C or more；Absorb 20 gear-box of slot and valve position letter
Number whole is correct, and control parameter is all up to standard, and the time is gone to terminate；
When step E, absorbing slot 20 by removing change release of pressure, changes the bright expression of step signal lamp and change step；It absorbs slot 20 and enters release of pressure：Tooth
After roller box positioning, limit switch signal is fed back to control panel, otherwise can stop automatically, to be shown by alarm and signal lamp；
Absorb 20 valve position of slot：It opens dual distillation air valve, closes main valve 17, dirty air valve 15, air bleeding valve 13, fresh air-valve 16, noble gas valve, dual
Steam valve, switching signal are fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；Open main valve
17 urgent and angle valve, the small valves of dual steam valve, close the dual small valve of distillation air valve；Regeneration tank is not chain, and other slots are all chain；It is fresh
Windmill 4 starts operating automatically；It absorbs 20 gear-box of slot and valve position signal is all correct, the release of pressure time terminates；
Step F, it when absorption slot 20 shifts to dry by release of pressure, changes the bright expression of step lamp and changes step；It absorbs slot 20 and enters drying：Gear-box
After positioning, limit switch；Signal is fed back to control panel, otherwise can stop automatically, to be shown by alarm and signal lamp；It absorbs
20 valve position of slot：Main valve 17, air bleeding valve 13, fresh air-valve 16 are opened, dirty air valve 15, noble gas valve, dual distillation air valve, dual steam are closed
Valve, switching signal are fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；Open dual distillation
The small valve of air valve, the small valve of dual steam valve close main valve 17 and compel crowded angle valve；Regeneration tank and other slots be not all chain；Fresh wind is opened to add
2 valve of hot device closes cold blast sliding valve 3；It absorbs 20 gear-box of slot and valve position signal is all correct, drying time terminates；
When step G, absorbing slot 20 by dry change cooling, changes the bright expression of step lamp and change step；Absorb the change cooling of slot 20：Gear
Limit switch after case positioning；Signal is fed back to control panel, otherwise can stop automatically, to be shown by alarm and signal lamp；It inhales
Receive 20 valve position of slot：Main valve 17, air bleeding valve 13, fresh air-valve 16 are opened, dirty air valve 15, noble gas valve, dual distillation air valve, dual steaming are closed
Steam valve, switching signal are fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；Open dual steaming
The small valve of air valve, the small valve of dual steam valve are evaporated, main valve 17 is closed and compels crowded angle valve；Regeneration tank is chain regarding lower layer's temperature setup parameter；Its
Its slot is not chain；Fresh 2 valve of wind heater is closed, cold blast sliding valve 3 is opened；The cooling 20 lower layer's temperature of absorption slot that terminates does not reach lower limit set,
Then gear-box is chain does not release, even if terminating cooling time not change step still, continues cooling until temperature just changes step up to lower limit,
It is safe when ensuring air inlet again；It absorbs 20 gear-box of slot and valve position signal is all correct, absorb 20 temperature of slot and reach control parameter mark
Standard, cooling time terminate；
Step H, it when absorption slot 20 shifts to exhaust by cooling, changes the bright expression of step lamp and changes step；It absorbs slot 20 and enters exhaust：Gear-box
Limit switch signal is fed back to control panel after positioning, otherwise can stop automatically, to be shown by alarm and signal lamp；Absorb slot
20 valve positions：Begin to rehearse air valve 13, closes main valve 17, dirty air valve 15, fresh air-valve 16, noble gas valve, dual distillation air valve, dual steam
Valve, switching signal are fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；Main valve 17 is opened to compel
Squeeze angle valve, the small valve of dual distillation air valve, the small valve of dual steam valve；Regeneration tank and other slots be not all chain；Absorb 20 gear of slot
Case and valve position signal are all correct, and evacuation time terminates to change to next step：Air inlet；When absorbing slot 20 by exhaust change air inlet,
It changes the bright expression of step lamp and changes step；
Though step I, control panel is stopped automatic reason as regeneration tank gear-box no-fix or is positioned because of the instrument control device number of writing extremely
Non- feedback control panel；Gear-box need to be manipulated to positioning or overhauling instrument control device, make signal normal CQI feedback to control panel, Cai Nengzai
Cut automatic operating；It has registered rather than regenerated slot, when the non-feedback of gear-box signal, though it will not cause to stop automatic, the slot meeting
There is valve dislocation false alarm and cresset；When there are valve bit-errors in the slot registered, and though regeneration tank in what step, all operate to when
Between terminate, but do not change step；When there are valve bit-errors in the slot registered, it is necessary to which it is normal to handle the signal made, valve bit-errors message
After disappearance, regeneration tank could restore normally to replace step；If can not handle make valve bit-errors message disappear when, which must first move back
Go out to register, so that regeneration tank is restored normal and replace step；Regeneration tank stops automatically, and abnormality processing is appropriate and blackout, if again
When cutting automatic operating, step switch is changed if you need to touch, then needs to cut next step automatic operating again to the end of this Step Time,
It is such as not required to touch and changes step switch, then it can be in cutting automatic operating in this step；
Though step J, regeneration tank valve bit-errors reason is valve position no-fix or positioning because of the non-feedback control of the instrument control device number of writing extremely
Disk processed；When valve bit-errors message occurs in regeneration tank, if one minute untreated makes that its signal restores normal, valve bit-errors message disappears
Lose, then will produce and stop automatic, shown by alarm and signal lamp, though or Step Time terminate to remain in former step and
Next step will not be changed.
Embodiment：
Control logic compact to design is needed, is main logic control figure below：As shown in Figure 2：According to design, gear is first set
Case rotates a circle, that is, absorbs the time that eight step handoff procedure of slot needs in total, as shown in Figure 3.
According to this roller box feature, the position feed back signal often walked is determined, according to position feed back signal, calculate and absorb slot every
Time zone residing for the handoff procedure of step, and decomposed, limited, as shown in Figure 4.
After each step is run, setting steps complete position.After the completion of step, this roller box is unlocked, is driven
Moving electromagnetic valve, gear-box rotation, band hydrodynamic circuit drive the hydraulic valve of next step, in place after the completion of signal, switch step
It completes.
The present invention plays the subjective initiative of PLC control system according to hydraulic gear box feature, and design time algorithm is protected
Demonstrate,prove the stable operation of hydraulic test.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (2)
1. a kind of advanced absorption slot, including absorb slot（20）, it is characterised in that：The absorption slot（20）Top be connected with exhaust
Valve（13）, and the air bleeding valve（13）Side the absorption slot（20）On be connected with rear steam valve（10）And nitrogen valve
（12）；Steam valve after described（10）It is connected with the small valve of steam（9）With preceding steam valve（11）, and the preceding steam valve（11）It is connected with
Steam pipe（8）；The nitrogen valve（12）It is connected with nitrogen tube（7）；
The absorption slot（20）Bottom be connected with main valve（17）With upper distillation air valve（21）, and the upper distillation air valve（21）Even
It is connected to fresh air-valve（16）With the small valve of the second nitrogen（18）；The fresh air-valve（16）It is connected with the small valve of the first nitrogen（14）, and
The small valve of first nitrogen（14）It is connected with flue gas leading（5）；The dirt air valve（15）It is connected with dirty gas windmill（6）；It is described fresh
Air-valve（16）It is connected with cold blast sliding valve（3）, and the cold blast sliding valve（3）It is in parallel that there are two heaters（2）, hot-blast valve（1）, and it is described plus
Hot device（2）With hot-blast valve（1）Between connect；The cold blast sliding valve（3）One end connect fresh windmill（4）；Second nitrogen is small
Valve（18）One end be connected with nitrogen tube（7）；The main valve（17）With the absorption slot（20）Between be connected with distillation air valve
（21）, and the upper distillation air valve（21）One end be connected with lower distillation air valve（19）With the small valve of distillation gas（22）；The distillation
The small valve of gas（22）One end be connected with soft water mouth（23）With waste water mouth（24）；The upper distillation air valve（21）It is connected with lower distillation gas
Valve（19）, and the lower distillation air valve（19）One end be connected with distillation gas port（25）.
2. a kind of advanced absorption slot sequential control algorithm, it is characterised in that：Include the following steps：
Step A, slot is absorbed（20）Enter air inlet step：Limit switch signal is fed back to control panel after gear-box positioning, otherwise can stop
Automatically, wherein absorb slot（20）Valve position：Open main valve（17）, dirty air valve（15）, air bleeding valve（13）, close fresh air-valve（16）、
Noble gas valve, dual distillation air valve, dual steam valve, the signal of switch are fed back to control panel, otherwise can valve bit-errors, pass through alarm
And signal lamp is shown；Close main valve（17）Compel crowded angle valve, opens the small valve of dual distillation air valve and the small valve of dual steam valve；Respectively
Absorb slot（20）It is all not chain；Absorb slot（20）Gear-box and valve position signal are all correct, and inlet period terminates；
Step B, slot is absorbed（20）When changing all valves by air inlet and closing step, change step cresset it is bright after, it is then bright to change slot cresset, this
Shi Zaisheng lamps can shift to time one slot of registering and execute action；Absorb slot（20）Enter all valves to close：Limit switch after gear-box positioning,
Signal is fed back to control panel, otherwise can stop automatically, be shown by alarm and signal lamp；Absorb slot（20）Valve position：All
Close, signal is fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp；Open main valve（17）Compel
Squeeze angle valve, the small valve of dual distillation air valve and the small valve of dual steam valve；It is each to absorb slot（20）It is all not chain；Absorb slot（20）Gear
Case and valve position signal are all correct, and the control fully closed indicator light of moushroom valve is bright, and all valve closing times terminate；
Step C, slot is absorbed（20）When shifting to noble gas step by the closing of all valves, changes the bright expression of step lamp and change step；Absorb slot
（20）Enter noble gas：Limit switch after gear-box positioning, signal are fed back to control panel, otherwise can stop automatically by alarm and signal
Lamp is shown；Absorb slot（20）Valve position：Noble gas valve, dual distillation air valve are opened, main valve is closed（17）, dirty air valve（15）, air bleeding valve
（13）, fresh air-valve（16）, dual steam valve, the signal of switch is fed back to control panel, otherwise can valve bit-errors, by alarm with
And signal lamp is shown；Open main valve（17）Compel crowded angle valve, the small valve of dual steam valve, closes the dual small valve of distillation air valve, evaporator
Automatic drain valve is opened；Regeneration tank and other slots are all chain；Slot is absorbed at this time（20）Start to pour into noble gas, if inert gas pressure is low
When lower limit, even if the time terminates still change step, slot is absorbed（20）Gear-box and valve position signal are all correct, inert gas pressure
Normally, the noble gas time terminates；
Step D, slot is absorbed（20）When being shifted to by noble gas, changes the bright expression of step lamp and change step；Absorb slot（20）Enter：Tooth
Limit switch signal is fed back to control panel after roller box positioning, otherwise can stop automatically, to be shown by alarm and signal lamp, steam
Tank automatic drain valve is sent out to close；Absorb slot（20）Valve position：Dual distillation air valve, dual steam valve are opened, main valve is closed（17）, dirty air valve
（15）, air bleeding valve（13）, fresh air-valve（16）, noble gas valve, switching signal is fed back to control panel, otherwise can valve bit-errors, pass through
Alarm and signal lamp are shown；Open main valve（17）Compel crowded angle valve, closes the small valve of dual distillation air valve, the small valve of dual steam（9）；
Regeneration tank and other slots are all chain；Slot is absorbed at this time（20）Start to pour into steam, when vapor (steam) temperature or the super lower limit of pressure, main steaming
Steam valve can be automatically closed, even if the time terminates still change step；In going when condenser cooling water temperature over-range, main steam valve
Understand chain closing pause to go, but timer continues to timing, the time terminates, and will not change step, and the cooling water temperatures such as need decline
Step is just changed in control parameter；In going when condenser exhaust gas temperature over-range, row's air triple valve can the row's of automatic opening air,
Main steam valve can chain closing pause go, but timer still will continue to timing, and the time terminates, and will not change step, the exhausts such as need
Temperature, which drops in control parameter, just changes step；It goes to absorb slot before terminating（20）Lower layer's temperature requires more than 105 DEG C of the upper limit, otherwise
Time terminates not change step still, continues to ensure completely, until lower layer's temperature is just restored to change step up to 105 DEG C or more；
Absorb slot（20）Gear-box and valve position signal are all correct, and control parameter is all up to standard, and the time is gone to terminate；
Step E, slot is absorbed（20）When by removing change release of pressure, changing the bright expression of step signal lamp and changing step；Absorb slot（20）Enter to release
Pressure：After gear-box positioning, limit switch signal is fed back to control panel, otherwise can stop automatically, to pass through alarm and signal lamp carries out
Display；Absorb slot（20）Valve position：Dual distillation air valve is opened, main valve is closed（17）, dirty air valve（15）, air bleeding valve（13）, fresh air-valve
（16）, noble gas valve, dual steam valve, switching signal is fed back to control panel, otherwise can valve bit-errors, pass through alarm and signal lamp
It is shown；Open main valve（17）Urgent and angle valve, the small valve of dual steam valve, close the dual small valve of distillation air valve；Regeneration tank is not chain,
Its slot is all chain；Fresh windmill（4）It is automatic to start operating；Absorb slot（20）Gear-box and valve position signal are all correct, release of pressure
Time terminates；
Step F, slot is absorbed（20）When shifting to dry by release of pressure, changes the bright expression of step lamp and change step；Absorb slot（20）Enter drying：Tooth
After roller box positioning, limit switch；Signal is fed back to control panel, otherwise can stop automatically, to be shown by alarm and signal lamp；
Absorb slot（20）Valve position：Open main valve（17）, air bleeding valve（13）, fresh air-valve（16）, close dirty air valve（15）, noble gas valve, dual steaming
Evaporate air valve, dual steam valve, switching signal is fed back to control panel, otherwise can valve bit-errors, pass through alarm and signal lamp and carry out
Display；The small valve of dual distillation air valve, the small valve of dual steam valve are opened, main valve is closed（17）Compel crowded angle valve；Regeneration tank and other slots are whole
It is not chain；Open fresh wind heater（2）Valve closes cold blast sliding valve（3）；Absorb slot（20）Gear-box and valve position signal are all correct, do
The dry time terminates；
Step G, slot is absorbed（20）When cooling by dry change, change the bright expression of step lamp and change step；Absorb slot（20）Change cooling：
Limit switch after gear-box positioning；Signal is fed back to control panel, otherwise can stop automatically, to be shown by alarm and signal lamp
Show；Absorb slot（20）Valve position：Open main valve（17）, air bleeding valve（13）, fresh air-valve（16）, close dirty air valve（15）, it is noble gas valve, dual
Distill air valve, dual steam valve, switching signal is fed back to control panel, otherwise can valve bit-errors, by alarm and signal lamp into
Row display；The small valve of dual distillation air valve, the small valve of dual steam valve are opened, main valve is closed（17）Compel crowded angle valve；Regeneration tank regards lower layer's temperature
Setup parameter and it is chain；Other slots are not chain；Close fresh wind heater（2）Valve opens cold blast sliding valve（3）；It is cooling to terminate to absorb slot
（20）Lower layer's temperature does not reach lower limit set, then gear-box is chain does not release, even if terminating cooling time not change step still, continues cold
But safe when ensuring air inlet again until temperature just changes step up to lower limit；Absorb slot（20）Gear-box and valve position signal are whole just
Really, slot is absorbed（20）Temperature reaches control parameter standard, terminates cooling time；
Step H, slot is absorbed（20）When shifting to exhaust by cooling, changes the bright expression of step lamp and change step；Absorb slot（20）Enter exhaust：Tooth
Limit switch signal is fed back to control panel after roller box positioning, otherwise can stop automatically, to be shown by alarm and signal lamp；It inhales
Receive slot（20）Valve position：Begin to rehearse air valve（13）, close main valve（17）, dirty air valve（15）, fresh air-valve（16）, noble gas valve, dual distillation
Air valve, dual steam valve, switching signal are fed back to control panel, otherwise can valve bit-errors, shown by alarm and signal lamp
Show；Open main valve（17）Compel crowded angle valve, the small valve of dual distillation air valve, the small valve of dual steam valve；Regeneration tank and other slots do not connect all
Lock；Absorb slot（20）Gear-box and valve position signal are all correct, and evacuation time terminates to change to next step：Air inlet；Absorb slot
（20）When changing to air inlet by exhaust, changes the bright expression of step lamp and change step；
Though step I, control panel is stopped automatic reason as regeneration tank gear-box no-fix or is positioned because of the instrument control device number of writing extremely
Non- feedback control panel；Gear-box need to be manipulated to positioning or overhauling instrument control device, make signal normal CQI feedback to control panel, Cai Nengzai
Cut automatic operating；It has registered rather than regenerated slot, when the non-feedback of gear-box signal, though it will not cause to stop automatic, the slot meeting
There is valve dislocation false alarm and cresset；When there are valve bit-errors in the slot registered, and though regeneration tank in what step, all operate to when
Between terminate, but do not change step；When there are valve bit-errors in the slot registered, it is necessary to which it is normal to handle the signal made, valve bit-errors message
After disappearance, regeneration tank could restore normally to replace step；If can not handle make valve bit-errors message disappear when, which must first move back
Go out to register, so that regeneration tank is restored normal and replace step；Regeneration tank stops automatically, and abnormality processing is appropriate and blackout, if again
When cutting automatic operating, step switch is changed if you need to touch, then needs to cut next step automatic operating again to the end of this Step Time,
It is such as not required to touch and changes step switch, then it can be in cutting automatic operating in this step；
Though step J, regeneration tank valve bit-errors reason is valve position no-fix or positioning because of the non-feedback control of the instrument control device number of writing extremely
Disk processed；When valve bit-errors message occurs in regeneration tank, if one minute untreated makes that its signal restores normal, valve bit-errors message disappears
Lose, then will produce and stop automatic, shown by alarm and signal lamp, though or Step Time terminate to remain in former step and
Next step will not be changed.
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| CN201810333465.7A CN108614511A (en) | 2018-08-16 | 2018-08-16 | A kind of advanced absorption slot sequential control algorithm |
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| CN101219319A (en) * | 2007-09-30 | 2008-07-16 | 泉州市天龙环境工程有限公司 | Device for recovering viscose fiber production exhaust-gas with soda washing-adsorption condensing method |
| CN101825878A (en) * | 2010-04-02 | 2010-09-08 | 杭州奥通科技有限公司 | Viscose fiber waste gas treatment control system |
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Application publication date: 20181002 |