CN106774515B - A kind of heatingup of coke oven battery intelligent temperature control system and control method - Google Patents
A kind of heatingup of coke oven battery intelligent temperature control system and control method Download PDFInfo
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- CN106774515B CN106774515B CN201710025185.5A CN201710025185A CN106774515B CN 106774515 B CN106774515 B CN 106774515B CN 201710025185 A CN201710025185 A CN 201710025185A CN 106774515 B CN106774515 B CN 106774515B
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
-
- 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
- G05B11/00—Automatic controllers
- G05B11/01—Automatic controllers electric
- G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
- G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.
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Abstract
The invention discloses a kind of heatingup of coke oven battery intelligent temperature control system and control method, including：The temperature detecting point being distributed on coke oven, for realizing to the detection of temperature during Coke Oven Workers work and transmitting the temperature of detection to Analog input mModule using compensating wire；And the pressure detecting point of the pusher side of coke oven, coke side is distributed in, for realizing the measurement to coke oven machine side and the baker gas pressure of coke side, and the pressure signal of detection is transmitted to Analog input mModule；Analog input mModule is connected by RS485/232 modular converters with host computer, and RS485/232 modular converters are also connected with analog output module, and analog output module is connected with installed in the coal gas pressure regulator valve of coke oven coke side, pusher side.Heatingup of coke oven battery data acquisition and control method and device of the present invention can effectively reduce baker cost, and the technological means of science is provided for baker process, and meaning is very great.
Description
Technical field
The present invention relates to oven drying temperature of coke oven control technology field, and in particular to a kind of heatingup of coke oven battery intelligent temperature control system
System and control method.
Background technology
In recent years, because the rapid growth of China's steel industry, the demand of STRENGTH ON COKE increasingly increase, coal tar industry has been driven
Flourish, China's coking industry is in world lead level.China accounts for more than the 50% of global coke output, is referred to as complete
The first coke production of ball big country.With the horizontal continuous development of economic and technical, China is gradually changed into from coking big producer
Coking industry is made the country prosperous.Increased newly within five years of 2008~2013 years in coke oven production capacity, the top dress of newly-built 6 meters of JN60-6 types is burnt
Stove and 5.5 meters of JNDK55-05 types tamping coke furnace 112, the newly-built seat of coke oven more than 20 every year on average, and increase speed with annual 17%
Degree is incremented by.But there is substantial amounts of coke oven manufacturing enterprise there is no enough experiences in baker heating process, the theory for lacking science is real
Trample guidance so that temperature-rise period temperature control is improper in heatingup of coke oven battery, and the serious service life for shortening coke oven, some coke ovens are even
Normal use can not be put into, because the investment of coke oven construction is huge, causes great waste, is the serious damage of earth resource
Lose, the development low-carbon economy proposed with China is even more to run in the opposite direction.
Baker is one important procedure of the coke oven before putting into production, and good baker process can not only make it that coke oven is steady
Production, high yield, extend coke oven service life, the quality of the coke of output can also be improved.Baker described in us is actually logical
The mode for crossing heating baking lifts the temperature of coking furnace shaft, and the masonry of coke oven, which is dried, to be needed by three phases, is drying respectively,
Dehydration and heating, until temperature reaches 900 DEG C~1000 DEG C, actually baker is exactly before putting into formal production status for coke oven
The preparation done.
During heatingup of coke oven battery, oven drying temperature of coke oven monitoring point is numerous, and data processing amount is big, complex process, control essence
Degree requires high, and monitoring temperature is difficult and promptness is higher.In conventional new heatingup of coke oven battery, using artificial thermometric, manually
Temperature adjustment, the pattern of artificial treatment data, these far can not meet the requirement of production.Usually occur in baker precision it is low and
The problem of temperature can not be monitored in time so that oven drying temperature of coke oven fluctuates widely, directly affects coke oven service life and
The quality of coke.And huge workload is brought to heatingup of coke oven battery personnel, it is less efficient.
The content of the invention
To solve the shortcomings of the prior art, the invention discloses a kind of heatingup of coke oven battery intelligent temperature control system, leads to
Cross and build above-mentioned control system, realize collection and processing to data, more preferable temperature control can be reached.
The invention also discloses reusable heatingup of coke oven battery intelligent temperature control method, based on above-mentioned control system,
By the processing to data, the accurate control to temperature is realized using corresponding control method.
A kind of heatingup of coke oven battery intelligent temperature control system, including：The temperature detecting point being distributed on coke oven, for realization pair
Coke oven work during temperature detection and the temperature of detection is transmitted to Analog input mModule using compensating wire；
And the pressure detecting point of the pusher side of coke oven, coke side is distributed in, for realizing to coke oven machine side and the baker coal of coke side
The measurement of atmospheric pressure, and the pressure signal of detection is transmitted to Analog input mModule；
Analog input mModule is connected by RS485/232 modular converters with host computer, RS485/232 modular converters
Also it is connected with analog output module, analog output module and the coal gas pressure regulator valve phase installed in coke oven coke side, pusher side
Even；
Host computer coke oven is worked during temperature compared with setting value, when temperature is inconsistent with setting value
When aperture according to the aperture of coal gas pressure regulator valve with the corresponding coal gas pressure regulator valve of pressure dependence regulation, and then control into
Producer gas total amount finally realizes the control to temperature.
Further, the present invention additionally uses following technical scheme：The temperature detected during coke oven work is included to mark
Temperature, standard accumulation of heat room temperature, resistance wall temperature, standard bottom flue are laterally discharged in quasi- combustion chamber transverse direction exhaust temperature, combustion chamber
Temperature, machine, coke side flue and whole flue temperature；It is accurate to the scene temperature of the coke oven up to more than 100 meters with that can realize
The effect really detected.
Further, the present invention additionally uses following technical scheme：Temperature detecting point detects during live coke oven work
Signal packet transmit to multiple switch boards come realize wiring handle；Because site environment is more severe, preferably ensure coke oven
The reliability of baker control system.
Further, the present invention additionally uses following technical scheme：The switch board uses sealing device and rain cover；Enter
One step strengthens the stability of heatingup of coke oven battery control system.
Further, the present invention additionally uses following technical scheme：The switch board is powered using uninterrupted power source UPS,
Uninterrupted power source UPS is respectively connecting to the sub switch of each switch board by master switch, and each switch board is built with 1 24V electricity
Source modular converter, the alternating current of the 220V from uninterrupted power source UPS is converted into 24V power supplys in advance, powered to switch board；
It has the effect that：It is to ensure to control that system power supply, which employs uninterrupted power source UPS (10KVA, 30 minutes),
The power supply of system processed, fully ensure that the promptness and stability of control system monitoring.Due to data acquisition and processing (DAP) module used
Operating voltage is 24V, and the control cabinet each stood configures 1 double-pole switch built with 1 24V power transfer module, realizes this
The power supply power supply protection of control cabinet.
Further, the present invention additionally uses following technical scheme：The configuration software that the host computer uses for
IFIX monitoring softwares, IFIX monitoring software application DATABASE databases, IFIX monitoring softwares are DDE using dynamic data agreement
It is connected with EXCEL, is calculated from IFIX monitoring softwares incoming data to EXCEL.
It has the effect that：For the processing of temperature parameter, the temperature to some of key positions is needed in baker
Data are handled, but IFIX calculate data on Shortcomings, it is necessary to using computer come aid in treatment data.Computation
Machine quick and precisely processing data advantage complete baker during various pieces parameter calculating, furnace technology person can be timely
It was found that during baker temperature change, there is the detection position of abnormal temperature, improves work human efficiency in timely processing, saves
Time of technical staff.
Further, the present invention additionally uses following technical scheme：The coal gas pressure regulator valve employs motorized adjustment
Valve, the electric control valve band valve opening are fed back, 4~20mA of feedback current access Analog input mModules, and control electric current 4~
20mA accesses analog output module, and pressure transmitter gathers the pressure of gas piping, by simulation input amount module by pressure
Signal is sent in host computer, by analog output module by 4-20mA electric signal after the regulation of pid algorithm
Send the aperture that electromagnetism coal gas pressure regulator valve carrys out control valve to.
It has the effect that：To avoid wasting the excessive time with energy in algorithm development, host computer is direct
The adjuster control law ratio being widely used, integration, differential control are have chosen, abbreviation PID control, also known as PID are adjusted,
In the application, mainly gas flow, the aperture of valve are controlled by controlling the coal gas pressure regulator valve installed in coke oven coke side, pusher side
It is with pressure dependence：Valve opening is small, gas pressure rise；Valve opening is big, and gas pressure reduces.
Further, the present invention additionally uses following technical scheme：The host computer is provided with intelligent automatic alarm
System, the Faulty Temperature collected and other correct temperature deviations are very big, intelligent automatic alarm system by by collecting temperature with
Mean temperature relatively may determine that whether collecting temperature is failure and alarm indication；
It has the effect that：When collecting wrong temperature, the change of color can occur for displays temperature, be easy to intelligence certainly
Dynamic warning system records the error event occurred, makes error report and is easy to the inquiry of failure and the maintenance of system,
And the record after all warning messages are collected.
Further, the present invention additionally uses following technical scheme：The host computer is according to national refractory brick quality
Supervision Test Center establishes baker heating process database, and tie to the swelling rate test table of coke furnace building silica brick sampling test
Temperature, gas pressure, the technical requirements of automatic regulating valve are closed, establish temperature control mathematical modeling, draw computer heating control curve, root
The precise and stable control to temperature is realized according to computer heating control curve.
It has the effect that：Data of the host computer in database, combine coke oven construction feature, coke oven adds
The coke making process technologies such as hot mode, coking technique main points of maintenance, " big data " intellectual analysis is carried out to the data of collection, and in time
Intelligent alarm, prompting are carried out in picture, guidance technology personnel carry out related adjustment.
Further, not accurate enough in order to solve the control of the coke oven temperature of prior art, the invention also discloses a kind of burnt
Baking oven stove intelligent temperature control method, comprises the following steps：
Coke oven temperature data acquisition：The temperature detecting point multiple thermocouples being distributed on coke oven, realize and Coke Oven Workers are made
During temperature detection and the temperature data of detection is transmitted to Analog input mModule using compensating wire；
Coke oven pressure data gathers：Pressure transmitter is distributed in the pusher side of coke oven, at the pressure detecting point of coke side, realized
Measurement to coke oven machine side and the baker gas pressure of coke side, and the pressure signal of detection is transmitted to Analog input mModule；
Analog input mModule is connected by RS485/232 modular converters with host computer, RS485/232 modular converters
Also it is connected with analog output module, analog output module and the coal gas pressure regulator valve phase installed in coke oven coke side, pusher side
Even；
Computer controls：Host computer coke oven is worked during temperature compared with setting value, when temperature with
Opening according to the aperture of coal gas pressure regulator valve and pressure dependence regulation corresponding coal gas pressure regulator valve when setting value is inconsistent
Degree, and then control as-fired coal gas total amount finally to realize the control to temperature.
Further, above-mentioned control method of the invention additionally uses following technical scheme：When temperature is consistent with setting value
When, coal gas pressure regulator valve is failure to actuate；
When temperature and setting value are inconsistent, if actual temperature is higher, coal gas pressure regulator valve closes automatically, otherwise, coal
The increase of atmospheric pressure control valve opening.
Beneficial effects of the present invention：
Heatingup of coke oven battery data acquisition and control method and device of the present invention can effectively reduce baker cost, be carried for baker process
It is very great for the technological means of science, meaning.For country, the wasting of resources is avoided, has responded nation-building resource
The call of conservation-minded society；For the enterprise for needing heatingup of coke oven battery, it is not necessary to consider furnace system software and hardware purchase and
The time spent in development, avoid wasting substantial amounts of human and material resources.
Brief description of the drawings
The system architecture diagram of Fig. 1 present invention；
The temperature control flow figure of Fig. 2 present invention；
The power supply supply connection figure of Fig. 3 present invention；
The upper computer software passage of Fig. 4 present invention sets schematic diagram；
The analog quantity wiring connection diagram of Fig. 5 present invention；
The baker combustion gas console parameter interface schematic diagram of Fig. 6 present invention.
Embodiment：
The present invention is described in detail below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of heatingup of coke oven battery intelligent temperature control system, including：Computer, printer, RS485/232 turn
Change the mold the composition such as block, Analog input mModule, analog output module, live thermocouple, pressure transmitter, automatic regulating valve.
As shown in Fig. 2 a kind of heatingup of coke oven battery intelligent temperature control method, comprises the following steps：
The basic procedure of control：Temperature → control system that thermocouple detects actual peephole judges actually detected temperature
Whether consistent with predetermined temperature → automatic regulating valve automatically adjusts the size of gas volume according to actual conditions.
The distinctive points of the present invention and domestic current baker control technology are：
1st, computer heating control curve according to national refractory brick Quality Supervision and Inspection Center test data (expansion rate of refractory brick,
Crystal transition point) to draw, main function is to instruct the newly-built safe baker operation of coke oven, is steadily heated up according to curve so that fire resisting
Brick is obtained uniform, slow and fully expanded, and avoids refractory brick from being damaged because of thermal stress concentration or crystal transition, so that burnt
Stove safe operation improves its service life simultaneously；
2nd, actual industrial process control procedure is with reference to, introduces database, data are mainly previous experiments room in database
Refractory brick crystal transition temperature spot, preset temperature point, live thermocouple real time temperature test point (chamber temperature, the storage of detection
Hot cell temperature, double-edged fine-toothed comb brick temperature, main chimney flue temperature, bottom flue temperature, resistance wall temperature), gas pressure test point, time point
Deng；Each period (being a period according to every 1 hour) needs to rise during calculating baker according to computer heating control curve
Temperature, Site Detection temperature, gas pressure, the parameter such as gas flow of temperature, establish coal gas baker heating model, it is therefore an objective to real
Now according to the actually detected accurate adjustment control gas flow of temperature in scene so that actual oven drying temperature is according to computer heating control curve
It is steady to carry out, it is ensured that baker safety；
3rd, the coke making process technologies such as coke oven construction feature, coke oven heating mode, coking technique main points of maintenance are combined, to adopting
The data of collection carry out " big data " intellectual analysis, and carry out intelligent alarm, prompting in picture in time, and guidance technology personnel carry out phase
The adjustment of pass.
One aspect of the present invention carries out theoretical point of coke oven by monitoring the baker process with all kinds of coke oven type of furnaces of network analysis
Analysis, study to support that energy-conservation is theoretical with longevity；On the other hand feature is controlled according to heatingup of coke oven battery, takes into full account computer, automatic
Change control and organic knot of coke making process (computer heating control, refractory brick expansion characteristics, coke oven construction feature, coke oven heating mode etc.)
Close：
(1) computer heating control
Different model, the refractory brick expansion rate of different manufacturers, crystal transition point are different, are needed for this before baker by fire resisting
Brick sample is sent to national refractory brick Quality Supervision and Inspection Center experiment, and draws out computer heating control curve；
(2) coke oven construction feature
The refractory brick material of coke oven different parts is also had nothing in common with each other, and expansion rate, crystal transition point are also different, therefore exist respectively
Combustion chamber, regenerator, double-edged fine-toothed comb brick, main chimney flue, bottom flue, resistance wall are provided with electric thermo-couple temperature test point, gather each position
Real time temperature；
In the controls, target control temperature is pre-set according to heating curves, while control system collection is arranged in
The real time temperature of each temperature detecting point detection at scene is precisely controlled in time to realize.
Lead to the research of the measurement furnace body temperature of the coke oven of multipair various models, it is more convenient to being found after the processing of mass data
Succinct heatingup of coke oven battery heating technique.
Characteristic of the invention by understanding coke oven body interior composition material and its various refractory brick in depth, it is resistance to according to country
Firebrick Quality Supervision and Inspection Center establishes baker heating process data to the swelling rate test table of coke furnace building silica brick sampling test
Temperature control mathematics is established in storehouse, and the relevant technical requirements of combination temperature, gas pressure, automatic regulating valve, COMPREHENSIVE CALCULATING, exploration
Model, develop coke oven temperature intelligent controlling device, scientific guidance heatingup of coke oven battery heating technical process.
The present invention develops a set of structuring, reusable control system product, and to there is the enterprise of baker needs
This open system, completes predetermined baker plan.Coke oven automatic and accurate baker is realized, extends coke oven useful life, more science
Change, specialized Heating Process in Coke Oven be controlled.
How more than the 400 individual test points that scene of the present invention is distributed in the diverse location of coking furnace shaft facilitate data acquisition and show
Field installation, cable laying amount is reduced as far as possible, reduces the decay of signal, be more beneficial for the investigation of field failure and repair more
Problem is changed, completes Temperature records, the display of more than 400 individual temperature measuring points of this system needs.
In-site modeling amount input module of the present invention passes through RS485/232 modular converters and upper meter with analog output module
Calculation machine is connected.The temperature collected, gas pressure are passed data by communication module by the Analog input mModule at scene
It is defeated into host computer, field data is shown by computer software IFIX, handled, stored.
The present invention is also to solve the drawbacks of traditional baker pattern occurs, using advanced industrial control software IFIX, with reference to DDE,
The computer technologies such as EXCEL, using IFIX monitoring softwares provide it is various develop function, realize system monitoring, temperature return
Road control (the serials control loop of the composition such as peephole actual temperature, gas pressure, automatic regulating valve), mathematical operation, alarm
The problem of these complexity such as prompting, trend curve, report printing are cumbersome.IFIX and Excel company are realized by DDE communication modes
Connect, while the Vi sual Bas ic Script Programming environment that application IFIX is provided, realize more complicated control algolithm and intelligence
Can control function, oven drying temperature form timing preservation, printing etc..
Apparatus of the present invention carry out centralized displaying, control by each monitoring point access control system of baker, by IFIX, have
Effect, each monitoring point during baker is controlled in time, the high frequency floating for farthest mitigating oven drying temperature becomes
Change, it is ensured that the security in the service life and use of coke oven；Realize that oven drying temperature alarm and historical trend are shown.
According to coke oven technique, typically according to coke oven center line thick division, pusher machine or charging car side are pusher side, some uses
Coal-charging pusher machine, some are coaling using top；Coke guide or coke quenching cart side are coke side.Apparatus of the present invention need to coke oven machine side and
The dynamics of 2 pressure measurement points of baker coal gas of coke side is recorded, shows, automatically adjusted, and ensures pusher side and coke side baker coal gas pressure
Power stabilization (pressure and flow it is square directly proportional.In operation, to adjust pressure as means, for the purpose of regulation flow；
By controlling the total amount of coal gas finally to realize control temperature), ensure control operation precision and promptness, reduce the throwing of cost of labor
Enter, can select regulation manually or automatically adjust to complete to automatically control both sides baker gas pressure according to different situations
(typically setting 3.5KPa, the control of pressure is realized by regulating valve valve opening size), realizes automatic baker.
There is individual temperature detecting point more than 400 to need temperature detection and display during baker, Site Detection point, which is distributed in, to be up to
On more than 100 meters of coke oven, thermocouple uses K, E type, and 400 is branched altogether.Wherein predominantly detect：Standard combustion room laterally discharges
Temperature, standard accumulation of heat room temperature, resistance wall temperature, standard bottom flue temperature, machine, coke side flue are laterally discharged in temperature, combustion chamber
And whole flue temperature.And signal transmission is carried out using compensating wire, effectively avoid the interference and decay of signal.System and device will
Live more than 400 individual test points are distributed in 8 switch board wiring processing, because site environment is more severe, in order to preferably ensure
The reliability of heatingup of coke oven battery control system, switch board add sealing and rain cover.
The Fieldbus Control strategy that the system device uses, 8 switch boards are connected to one by live 485 buses
Rise, by 485 turn of 232 communication mode, transfer data to host computer concentrated controling management.
For the power supply of Guarantee control system, system power supply employs uninterrupted power source UPS (10KVA, 30 minutes), fully
The promptness and stability of Guarantee control system monitoring.Because data acquisition and processing (DAP) module operating voltage used is 24V, each
The control cabinet stood configures 1 double-pole switch built with 1 24V power transfer module, realizes that the power supply power supply of this control cabinet is protected
Shield.Electric power system is as shown in Figure 3.
The software section of heatingup of coke oven battery control system uses configuration software：IFIX 5.0, e-text software：Excel、
4000-5000utility module configurators, automatic process control system system running environment are the Hes of Chinese edition WINDOWS 7
IFIX control programs.If it is programmed realization, the quantities meeting of finished item using the C or java of routine in software section
Very huge, the function required for during baker difficult to realize, device employs the ADAM4000 series modules for grinding China, so
It also using and grind the supporting 4000-5000utility module configurators of China.
This heatingup of coke oven battery control device includes verification test and operation two parts, and the function of detection part is：Acquisition and recording
The process detection parameters such as coke oven body peephole temperature, pusher side coke side gas pressure；The function of control section：Entered by controlling
Gas flow in coke oven controls as-fired coal gas total amount with pressure to reach, and the pressure of gas and flow are closed loop controls in stove
System, gas flow is adjusted according to the height of temperature at any time.IFIX monitoring softwares include substantial amounts of program effect, can operate internal return
Sharing for device amount and closing capacity is held, connects the UNICOM of external wiring terminal, simply completes system to the monitoring of test point, temperature
The mathematical operation of circuit controls, mass data of bottom valve door, the alarm of abnormal temperature, automatic printing form etc..IFIX is same
When Visual Basic Script Programming environment is provided, can conveniently realize more complicated control algolithm, realize intelligent control function, make
It is easier control program must to be designed.
On the platform of IFIX industrial control softwares, DATABASE databases are applied, realizes and each passage is defined
Function, as shown in figure 4, " input label name, this tag name are corresponded in live thermocouple test point in Tag Name ",
And each name is unique；" Type " is types of variables, and interim " AI " is analog input；" Description " is pair
The explanation of Site Detection point and description." Scan Time " are sweep times, and it is 1s generally to determine the scan period；" I/O Dev " are I/
O hardware device；" I/O Addr " are that hardware address defines Site Detection point corresponding to each module channels, and the address is with showing
Field device is also one-to-one, and each address is unique；" Curr Value " be the real-time detected value of Site Detection point i.e.
The temperature or pressure of measurement.
Because the field work environment temperature of Coke Oven Heating-up System is all very high, system also needs to handle substantial amounts of data, because
This can greatly increase the probability of system jam, and thermocouple is easily damaged, and the baker time limit is long, is damaged during baker
The possibility that bad thermocouple transmits wrong data is also higher.To solve the problem, powerful intelligence is provided with to system certainly
Dynamic warning system.When system breaks down, meeting automatic spring alarm dialog box, operating personnel are reminded to be handled.Collect
Wrong temperature it is typically very big with other correct temperature deviations, so may determine that collection by the comparison of itself and mean temperature
Whether temperature is correct.When collecting wrong temperature, the change of color, the mistake that warning system will occur can occur for displays temperature
Part of causing delay is recorded, and is made error report and is easy to the inquiry of failure and the maintenance of system, and all warning messages are converged
The record of the General Logistics Department.
Using the form automatic printing Functional Design of DDE technologies, during baker, can all there is substantial amounts of number all the time
According to needing to handle, as the printing of form, the processing and preservation of data, but IFIX Shortcomings in terms of processing data, and
Using nor easily, therefore device is the other applications by computer.In connections of the IFIX with auxiliary software
DDE communication mode has obtained sufficient application, and DDE is Dynamic cata exchange, for the dynamic number under Windows running environment
According to exchange agreement, carry out information processing on the server, information obtained by client computer, i.e. mutually send between two programs and
Receive data.Need per hour to record scene temperature data during baker, record content also needs to printing and achieved, and passes
Manual hand manipulation's mode of system is not only cumbersome but also waste of manpower and easily error.The Excel on windows platforms is selected as auxiliary
Help software.Realize the opening of baker data record, printing, preservation on Excel, it is timing automatic by scene temperature and Gas Flow
Amount data-printing comes out.DDE technologies are used in baker form, the variable data in IFIX databases is sent to Excel, side
Just the information efficiently realized between IFIX databases and Excel mutually passes.
The display of drying out curve is made, and the function of IFIX prediction development is applied during baker, have developed theory
The function that drying out curve is showed by figure line simultaneously with actual drying out curve, the great Operating Guideline meaning of this advantage.In order to
Make temperature and ideal temperature curves, it would be desirable to which temperature curve data imported into forming curves figure in IFIX, then will be actual
Temperature carries out record compared with ideal temperature curve in IFIX, passes through the baking of theoretic drying out curve and execute-in-place
Stove curve is compared at same interface so that both difference are more directly perceived, more vivid, and technologist can be according to this
Function analyzes the gap of Current Temperatures and theoretical temperatures, timely carries out regulation and control amendment to temperature, reaches to coke oven highest matter
Measure the requirement of baker.
The software modification design function of test point, it is slightly different to adapt to the distribution of the coke oven monitoring point of different model,
Software modification design can be carried out to the position configuration of test point according to the distribution of the coke oven monitoring location of different model.Such as certain
The terminals of individual module, which break down, to be needed the point being connected on other terminals, it is necessary to which the test point on its software is repaiied
The temperature could correctly be shown by changing.
The processing of temperature parameter, need to handle the temperature data of some of key positions in baker, but IFIX
Shortcomings are, it is necessary to using computer come aid in treatment data on data are calculated.Appliance computer quick and precisely processing data
Advantage complete the calculating of various pieces parameter during baker, furnace technology person can have found temperature during baker in time
There is the detection position of abnormal temperature, improve work human efficiency in change, timely processing, save the time of technical staff.Dry
Stove process has several crucial parameters to need to obtain, such as full stove mean temperature, combustion chamber overall average temperature, per stove mean temperature
Deng, in order to which operative employee totally understands baker situation, due to IFIX in processing data Shortcomings, data communication in use
Dynamic data agreement on windows platforms is IFIX is connected by DDE with EXCEL, gives EXCEL to carry out from IFIX incoming datas
Calculate.
To avoid wasting the excessive time with energy in algorithm development, device directly have chosen the regulation being widely used
Device control law ratio, integration, differential control, the regulation of abbreviation PID control, also known as PID.In the present apparatus, regulation mainly passes through
Control is installed in coke oven coke side, the coal gas pressure regulator valve control gas flow of pusher side.The aperture of valve is with pressure dependence：Valve is opened
Spend small, gas pressure rise；Valve opening is big, and gas pressure reduces.
The Stress control regulating valve of coke oven machine Jiao both sides employs electric control valve, and band valve opening is fed back.Feedback current 4
~20mA accesses analog module, 4~20mA of control electric current access analog outputs part.3051 type pressure transmitters gather coal
The pressure of feed channel, pressure signal is sent in computer by simulation input amount module, led to after the regulation of pid algorithm
Cross analog output module and send 4-20mA electric signal to aperture that electromagnetism coal gas pressure regulator valve carrys out control valve.Scene
Principle wiring sketch is as shown in Figure 5.
In the debugging of IFIX temperature, PID control is used according to the selection of the technological requirement of baker, provided with industrial control software
Platform easily can set friendly control interface attractive in appearance to regulation picture.By double-clicking on workbench picture in IFIX
Regulating valve button, PID control regulation picture is easily recalled, pressure value at that time is set according to field condition and temperature requirement
And parameter, under normal circumstances, the pressure requirements that can just meet to automatically control using PI controls.But due to coal gas oven pipeline compared with
Long (about 130 meters), simple PI controls can not meet the requirement automatically adjusted, then employs PID and automatically control, parameter difference
It is defined as P:1.25、I：0.85、D:0.25, it is possible to achieve advanced reaction regulation, eliminate the concussion that gas pressure wave zone comes
Influence, realize that the pressure of baker coal gas is steady.
As shown in fig. 6, being provided with combustion gas console interface, random selection can be carried out to the control mode of combustion gas, had
Traditional manually field control mode, also there is the automatic control mode based on pid algorithm control system, can be according to scene
Different situations, flexible replacing selection.Can also to some local main portions for example combustion gas main pipeline, pusher side pipeline,
The valve opening of coke side pipeline and the statistics of gaseous-pressure are especially managed.To ensure the perfectly safe of baker process.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (7)
1. a kind of heatingup of coke oven battery intelligent temperature control system, it is characterized in that, including：The temperature detecting point being distributed on coke oven, use
In realize to Coke Oven Workers make during temperature detection and the temperature of detection is transmitted to analog input mould using compensating wire
Block；
And the pressure detecting point of the pusher side of coke oven, coke side is distributed in, for realizing the baker coal gas pressure to coke oven machine side and coke side
The measurement of power, and the pressure signal of detection is transmitted to Analog input mModule；
Analog input mModule is connected by RS485/232 modular converters with host computer, RS485/232 modular converters also with
Analog output module is connected, and analog output module is connected with installed in the coal gas pressure regulator valve of coke oven coke side, pusher side；
Host computer coke oven is worked during temperature compared with setting value, when temperature and setting value it is inconsistent when root
According to the aperture of aperture and the corresponding coal gas pressure regulator valve of pressure dependence regulation of coal gas pressure regulator valve, and then control as-fired coal
Gas total amount finally realizes the control to temperature；
During coke oven work the temperature that detects include to standard combustion room transverse direction exhaust temperature, combustion chamber laterally discharge temperature,
Standard accumulation of heat room temperature, resistance wall temperature, standard bottom flue temperature, machine, coke side flue and whole flue temperature；
The signal packet that temperature detecting point detects during live coke oven work is transmitted to multiple switch boards to realize that wiring is handled；
The switch board is powered using uninterrupted power source UPS, and uninterrupted power source UPS is respectively connecting to each control by master switch
The sub switch of cabinet, each switch board is built with 1 24V power transfer module, in advance by the 220V's from uninterrupted power source UPS
Alternating current is converted to 24V power supplys, is powered to switch board.
2. a kind of heatingup of coke oven battery intelligent temperature control system as claimed in claim 1, it is characterized in that, the switch board is using close
Seal apparatus and rain cover.
3. a kind of heatingup of coke oven battery intelligent temperature control system as claimed in claim 1, it is characterized in that, the host computer is adopted
Configuration software is IFIX monitoring softwares, and IFIX monitoring software application DATABASE databases, IFIX monitoring softwares are using dynamic
State data protocol is that DDE is connected with EXCEL, is calculated from IFIX monitoring softwares incoming data to EXCEL.
4. a kind of heatingup of coke oven battery intelligent temperature control system as claimed in claim 1, it is characterized in that, the gas pressure regulation
Valve employs electric control valve, and the electric control valve band valve opening is fed back, 4~20mA of feedback current access analog inputs
Module, 4~20mA of control electric current access analog output modules, pressure transmitter gather the pressure of gas piping, pass through simulation
Pressure signal is sent in host computer by input quantity module, passes through analog output module after the regulation of pid algorithm
Send 4-20mA electric signal to aperture that electromagnetism coal gas pressure regulator valve carrys out control valve.
5. a kind of heatingup of coke oven battery intelligent temperature control system as claimed in claim 1, it is characterized in that, the host computer is set
Intelligent automatic alarm system is equipped with, the Faulty Temperature collected and other correct temperature deviations are very big, intelligent automatic alarm system
By the way that collecting temperature and mean temperature relatively may determine that into whether collecting temperature is failure and alarm indication.
6. a kind of heatingup of coke oven battery intelligent temperature control system as claimed in claim 1, it is characterized in that, the host computer according to
Swelling rate test table according to national refractory brick Quality Supervision and Inspection Center to coke furnace building silica brick sampling test, establish baker heating
Process database, and the technical requirements of combination temperature, gas pressure, automatic regulating valve, temperature control mathematical modeling is established, drawn
Computer heating control curve, the precise and stable control to temperature is realized according to computer heating control curve.
7. a kind of heatingup of coke oven battery intelligent temperature control method, it is characterized in that, comprise the following steps：
Coke oven temperature data acquisition：The temperature detecting point multiple thermocouples being distributed on coke oven, realizes and makees process to Coke Oven Workers
The detection of middle temperature is simultaneously transmitted the temperature data of detection to Analog input mModule using compensating wire；
Coke oven pressure data gathers：Pressure transmitter is distributed in the pusher side of coke oven, at the pressure detecting point of coke side, realizes focusing
The measurement of the baker gas pressure of stove pusher side and coke side, and the pressure signal of detection is transmitted to Analog input mModule；
Analog input mModule is connected by RS485/232 modular converters with host computer, RS485/232 modular converters also with
Analog output module is connected, and analog output module is connected with installed in the coal gas pressure regulator valve of coke oven coke side, pusher side；
Computer controls：Host computer coke oven is worked during temperature compared with setting value, when temperature with setting
Aperture when being worth inconsistent according to the aperture of coal gas pressure regulator valve with the corresponding coal gas pressure regulator valve of pressure dependence regulation, enters
And as-fired coal gas total amount is controlled finally to realize the control to temperature；Host computer is according in national refractory brick quality supervision and test
The heart establishes baker heating process database, and combination temperature, coal gas to the swelling rate test table of coke furnace building silica brick sampling test
Pressure, the technical requirements of automatic regulating valve, temperature control mathematical modeling is established, computer heating control curve is drawn, according to computer heating control
Curve realizes the precise and stable control to temperature；
When temperature is consistent with setting value, coal gas pressure regulator valve is failure to actuate；When temperature and setting value are inconsistent, if actual temperature
To spend higher, then coal gas pressure regulator valve closes automatically, otherwise, the increase of coal gas pressure regulator valve aperture.
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| CN107543425A (en) * | 2017-07-07 | 2018-01-05 | 无锡斯贝尔磁性材料有限公司 | A kind of furnace atmosphere Auto-Test System |
| CN108225964A (en) * | 2017-12-27 | 2018-06-29 | 辽宁科技大学 | A kind of coking coal prefiring device and water analysis go out dynamic measurement system |
| CN111076193B (en) * | 2019-12-17 | 2021-12-28 | 浙江天地环保科技股份有限公司 | Automatic adjusting and controlling system and method for temperature of combustion chamber of heat accumulating type thermal oxidation furnace |
| CN111351591A (en) * | 2020-03-31 | 2020-06-30 | 中冶焦耐(大连)工程技术有限公司 | Automatic acquisition method for central temperature of coke cake of coke oven |
| CN111534308A (en) * | 2020-05-08 | 2020-08-14 | 马鞍山钢铁股份有限公司 | Method for controlling temperature of ultrahigh coke oven |
| CN113434519B (en) * | 2021-08-26 | 2021-12-10 | 西安热工研究院有限公司 | Method, system and storage medium for updating label names of measuring points |
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| CN1472518A (en) * | 2002-07-31 | 2004-02-04 | 宝山钢铁股份有限公司 | Temperature determining system and method for drying cokery |
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