CN206075162U - A kind of many stove seat Pressure Control System for Coke-Oven based on PLC - Google Patents
A kind of many stove seat Pressure Control System for Coke-Oven based on PLC Download PDFInfo
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- CN206075162U CN206075162U CN201620606885.4U CN201620606885U CN206075162U CN 206075162 U CN206075162 U CN 206075162U CN 201620606885 U CN201620606885 U CN 201620606885U CN 206075162 U CN206075162 U CN 206075162U
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- coke
- oven
- plc
- coke oven
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Abstract
This utility model discloses a kind of many stove seat Pressure Control System for Coke-Oven based on PLC，Including 1# south coke oven、1# north coke oven、2# south coke oven、2# north coke oven、3# coke ovens、4# coke ovens，The outfan of each coke oven diversity trachea corresponding thereto connects，A pressure-regulating valve is installed in each diversity trachea，The input of all diversity tracheas is communicated with main header outfan，Pipeline section in the middle part of main header is provided with gas-blowing engine，Partial circulating coal gas regulation pipe in parallel and systemic circulation coal gas regulation pipe between the input of gas-blowing engine and outfan，Corresponded in two coal gas regulation pipes respectively and pressure-regulating valve is installed，Above-mentioned each regulating valve is to there is a corresponding controller，All governor valve control devices are electrically connected with the PLC processor for being provided with fuzzy application program，PLC processor is electrically connected with the computer for being provided with WinCC configuration softwares.This utility model significantly reduces Pressure Control System for Coke-Oven fault rate, simplifies control structure, improves stability.
Description
Technical field
This utility model is related to technical field of electrical automatic control, is related to Coal Chemical Industry coke oven collecting main, and in particular to a kind of
Many stove seat Pressure Control System for Coke-Oven based on PLC.
Background technology
Discharge collects the special equipment of each carbonization chamber raw coke oven gas for coke oven, and stablizing for its pressure directly affects coke oven carbonization
The gas tightness of room, or even converter life.Therefore, the stability contorting of collecting main pressure, is coke oven controlling of production process always
Paid attention to.Jiu Gang coke-oven plants are existing 1, two one group of 4.3m of 2#, and 3, two one group of 6m of 4#, 4 coke ovens, share one group of air blast altogether
Machine gas recovery system.The factor for affecting coke oven collecting main pressure stable mainly has coke pushing, coaling high and low pressure ammonia switching behaviour
Make, bench of burners uneven with bench of burners coal resource affects, influence of fluctuations of pressure etc. many factors are altogether after aerator machine
Under same-action, collecting main pressure becomes insoluble problem in the independent stability contorting in coke oven side.
The country has been also carried out numerous studies for the stability contorting of coke oven collecting main, and proposes different control methods, its
The middle fuzzy control method using existing control theory is utilized in a large number, and practice also demonstrates that fuzzy control method is controlled compared with traditional PI D
Algorithm processed, has fairly obvious advantage on dynamic response and robustness.Wine steel is in introduction Xi'an in 2005 into automatic control
Company limited develops coke oven collecting main pressure Fuzzy control system, and the system adopts optimization level（Industrial computer）+ basis（PLC）Two-stage
Structure.Optimization level runs on operator station, but due to gas-blowing engine control room corrosiveness of the environment gases affect, computer behaviour
Make station hardware fault frequent.In addition, computer hardware updates, using base level（PLC）+ Fuzzy control system optimization level
（Computer）Two-layer configuration, there is optimization level computer hardware, to be limited control system by running environment and system structure unstable,
Fault rate is high, causes collecting main pressure to adjust out of control, arranges, easily environmental pollution accident outside raw coke oven gas.
Utility model content
This utility model provides a kind of many stove seat Pressure Control System for Coke-Oven based on PLC, based on Siemens
The FUZZY ALGORITHMS FOR CONTROL functional device of S7-300,400 series processors, realizes many stove seat coke oven collecting main pressure controls on PLC
System.
This utility model is adopted the following technical scheme that：A kind of many stove seat Pressure Control System for Coke-Oven based on PLC,
Including 1# south coke oven, 1# north coke oven, 2# south coke oven, 2# north coke oven, 3# coke ovens, 4# coke ovens, each coke oven corresponding thereto one
The outfan of diversity trachea connects, and is provided with a pressure-regulating valve in each diversity trachea, the input of all diversity tracheas with
Main header outfan is communicated, and the pipeline section in the middle part of main header is provided with gas-blowing engine, the input of gas-blowing engine with it is defeated
Go out partial circulating coal gas regulation pipe in parallel and systemic circulation coal gas regulation pipe between end, corresponded in two coal gas regulation pipes respectively and pressure is installed
Force regulating valve, above-mentioned each regulating valve to there is a corresponding controller, all governor valve control devices be provided with fuzzy application journey
The PLC processor of sequence is electrically connected, and PLC processor is electrically connected with the computer for being provided with WinCC configuration softwares.
Further, the PLC processor for being provided with fuzzy application program is Siemens S7-300,400 series of PLC processors.
The beneficial effects of the utility model are：This utility model realizes Jiao in Siemens S7-300,400 series of PLC
Stove collecting main pressure FUZZY ALGORITHMS FOR CONTROL.Control system architecture is simplified, system reliability is greatly improved, and is greatly reduced after enforcement
Pressure Control System for Coke-Oven fault rate, simplifies control structure, improves stability, reaches each coke oven collecting main pressure work
Skill requires control accuracy, reduces fault rate.
Description of the drawings
Fig. 1. structural representation of the present utility model；
Fig. 2. this utility model control system architecture figure；
Fig. 3. this utility model fuzzy controller flow chart of data processing figure.
In figure：1. pressure-regulating valve, 2. systemic circulation gas regulator, 3. partial circulating gas regulator, 4. gas drum
Blower fan, 5. computer, 6.PLC processors.
Specific embodiment
A kind of many stove seat Pressure Control System for Coke-Oven based on PLC, including 1# south coke oven, coke oven, 2# are southern in 1# north
Coke oven, 2# north coke oven, 3# coke ovens, 4# coke ovens, the outfan of each coke oven diversity trachea corresponding thereto connect, Mei Yifen
One pressure-regulating valve 1 is installed in discharge, the input of all diversity tracheas is communicated with main header outfan, main header
The pipeline section at middle part is provided with gas-blowing engine, partial circulating coal gas regulation pipe in parallel between the input and outfan of gas-blowing engine
With systemic circulation coal gas regulation pipe, partial circulating gas regulator 3, systemic circulation coal gas regulation pipe are installed in partial circulating coal gas regulation pipe
In systemic circulation gas regulator 2 is installed,
To there is respective controller, all controllers are provided with fuzzy application program to above-mentioned all of each regulating valve
PLC processor 6 is electrically connected, and PLC processor 6 is electrically connected with the computer 5 for being provided with WinCC configuration softwares.
Under Siemens STEP7, standard, establishment, emulation testing collecting main pressure FUZZY ALGORITHMS FOR CONTROL function are programmed using SCL
Block.With collecting main pressure FUZZY ALGORITHMS FOR CONTROL functional device, work out 1# south coke oven, 1# north coke oven, 2# south coke oven, 2# north coke oven,
The gas collection pressure-regulating valve controller of 3# coke ovens, 4# coke ovens.With aggregate balancing algorithm, aerator systemic circulation, partial circulating are worked out
Governor valve control device, carries out on-line tuning to each governor valve control device parameter respectively.According to coke-oven gas-collector pressure control feature
Control rule is formulated, fuzzy control rule table is worked out；Based on fuzzy control rule table, establishment exploitation FUZZY ALGORITHMS FOR CONTROL work(
Can block；Again based on FUZZY ALGORITHMS FOR CONTROL functional device, each coke oven collecting main pressure single-loop controller is developed.With comprehensive flat
Method is accounted, systemic circulation coal gas is developed respectively and is adjusted controller and partial circulating coal gas regulation controller, after adjusting aerator machine
Coal gas capacity of returns to before aerator machine, intercouples and pressure after machine effectively to eliminate the how bench of burners pressure and between discharge
Influence of fluctuations problem.
As shown in figure 3, based on Siemens STEP7 programming software SCL structuring control languages, application is with deviation e=
SP（Setting value）- PV（Measured value）, △ e deviation variation rates for input, control valve position be output dual input list output obscure
Control algolithm.Design and develop coke oven collecting main pressure single loop Fuzzy Controller functional device.With aggregate balancing algorithm, each gas collection
Pipe pressure setting value SP, measured value PV are input, controls valve position for output, respectively with systemic circulation coal gas regulation controller, little follow
Ring coal gas adjusts controller signals and is connected；Respectively to each coke oven collecting main pressure single loop Fuzzy Controller, systemic circulation coal gas
Adjust the P that controller, partial circulating coal gas adjust controller（Proportionality coefficient）、I（The time of integration）、D（Derivative time）Parameter is carried out
On-line tuning, finally makes each single loop meet production technology degree of regulation requirement.
Claims (2)
1. a kind of many stove seat Pressure Control System for Coke-Oven based on PLC, it is characterised in that：It is northern including 1# south coke oven, 1#
Coke oven, 2# south coke oven, 2# north coke oven, 3# coke ovens, 4# coke ovens, the outfan phase of each coke oven diversity trachea corresponding thereto
Connect, a pressure-regulating valve be installed in each diversity trachea, the input of all diversity tracheas is communicated with main header outfan,
Pipeline section in the middle part of main header is provided with gas-blowing engine, partial circulating coal in parallel between the input and outfan of gas-blowing engine
Gas regulation pipe and systemic circulation coal gas regulation pipe, correspond in two coal gas regulation pipes respectively and are provided with pressure-regulating valve, above-mentioned each tune
To there is a corresponding controller, all governor valve control devices are electrically connected section valve with PLC processor.
2. a kind of many stove seat Pressure Control System for Coke-Oven based on PLC as claimed in claim 1, it is characterised in that：
The PLC processor for being provided with fuzzy application program is Siemens S7-300,400 series of PLC processors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620606885.4U CN206075162U (en) | 2016-06-20 | 2016-06-20 | A kind of many stove seat Pressure Control System for Coke-Oven based on PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620606885.4U CN206075162U (en) | 2016-06-20 | 2016-06-20 | A kind of many stove seat Pressure Control System for Coke-Oven based on PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206075162U true CN206075162U (en) | 2017-04-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620606885.4U Expired - Fee Related CN206075162U (en) | 2016-06-20 | 2016-06-20 | A kind of many stove seat Pressure Control System for Coke-Oven based on PLC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206075162U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113337312A (en) * | 2021-06-24 | 2021-09-03 | 广东韶钢松山股份有限公司 | Pressure control system and method for gas collecting pipe |
-
2016
- 2016-06-20 CN CN201620606885.4U patent/CN206075162U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113337312A (en) * | 2021-06-24 | 2021-09-03 | 广东韶钢松山股份有限公司 | Pressure control system and method for gas collecting pipe |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20180620 |