CN206147330U - Pyrolysis test device's stove temperature control system based on labView - Google Patents
Pyrolysis test device's stove temperature control system based on labView Download PDFInfo
- Publication number
- CN206147330U CN206147330U CN201621085421.XU CN201621085421U CN206147330U CN 206147330 U CN206147330 U CN 206147330U CN 201621085421 U CN201621085421 U CN 201621085421U CN 206147330 U CN206147330 U CN 206147330U
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- Prior art keywords
- module
- industrial computer
- voltage
- power regulating
- labview
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The utility model provides a pyrolysis test device's stove temperature control system based on labView which includes industrial computer, serial server, furnace temperature measured module, transfers merit ware electric current / voltage measured module and analog output module. The industrial computer pass through the ethernet with serial server links to each other. Furnace temperature measured module with serial server's serial port COM1 links to each other for the temperature in the three district of testing device. Transfer merit ware electric current voltage measuring modules to link to each other with serial port COM2 for measure the voltage on the power output line. The analog output module links to each other with serial port COM3, is used for receiving coming from the labView monitoring program's of operation control signal on the industrial computer, then will send this voltage signal and arrive transfer merit ware electric current voltage measuring modules. The utility model discloses easily realizing, having saved the development time greatly, and easily realize the record of experimental data, data analysis haves laid a good foundation for the pyrolysis experiment.
Description
Technical field
This utility model belongs to automation field, and in particular to a kind of stove of the thermal decomposition test device based on LabView
Temperature control system.
Background technology
With the continuous development of pyrolytic technique, the application of pyrolysis oven also more and more extensively, such as process house refuse or
In person's industrial refuse, pyrolysis oven serves very important effect, such as industrial processing waste printed circuit board (PCB).In print
In the production process of printed circuit board (PCB), some scraps can be produced and frame is cut, if processed as rubbish,
Environment will be polluted to environmental effects.And containing such as red copper metal in useless PCB, it has very high being reused
Value.
At present, the processing method that the PCB that gives up is processed has mechanical approach, metallurgical extraction method, biological treatment, supercritical fluid
Method, pyrolysismethod etc..Pyrolytic technique is wherein used, the poisonous and harmful substance discharged is than additive method much less.
The pyrolysis of useless PCB generally needs first to crush useless PCB, is then sent to resistance by hopper and conveying worm
Stove the inside.In stove, useless PCB particles are transported to the afterbody of stove with certain speed by conveying worm, become pyrolysis residue
And pyrolysis gas, it is collected separately, to treat subsequent treatment.The temperature for generally having several humidity provinces, each area in stove is individually controlled
System, to form step temperature, meets the requirement of pyrolytic process.Therefore, in useless PCB pyrolytic process, for the accurate control of temperature
System is particularly important, and this will directly affect the effect of pyrolysis.
As shown in the above, using pyrolysis oven carry out industrialized production during, for pyrolysis furnace temperature control
System is most important.
One kind is disclosed in prior art collection furnace temperature, PLC are connected with resistance furnace by digital temperature sensor
Connection digital temperature sensor and solid-state relay, solid-state relay connection resistance furnace, by or off solid-state relay
To control the control system and method for furnace temperature.However, its shortcoming is the on or off that the method controls solid-state relay, from
And heat time heating time of resistance furnace is controlled, to realize control to furnace temperature, and control to be added in resistance wire two ends by power regulating eqiupment
Voltage compares controlling furnace temperature method, and its control accuracy is not high, and the response time for controlling is longer.
Prior art also discloses a kind of oven temperature control device, and the device is included for measuring resistance furnace temperature and by temperature
To the digital temperature sensor of microprocessor, the temperature survey end of resistance furnace electrically connects the defeated of digital temperature sensor to signal transmission
Enter end, the outfan of temperature sensor electrically connects the GPIO ends of microprocessor；For the heater of resistance stove heat, microprocessor
The control signal that sends of EVA ends control optocoupler, drive circuit and heater successively；The EVA ends electrical connection optocoupler of microprocessor
Input, the outfan of optocoupler electrically connects the input of drive circuit, the outfan electrical connection heater of drive circuit；For
Man-machine interaction and the industrial computer and touch screen of system monitoring, industrial computer electrically connects touch screen by its I/O interface, total by CAN
Interface circuit is electrically connected with microprocessor.Its shortcoming is the Furnace Temperature Control System that the method needs exploitation, while also needing to
Industrial computer and touch screen, system complex increased cost.
Utility model content
The purpose of this utility model be provide it is a kind of be easily achieved and Furnace Temperature Control System that temperature control precision is high and
Method, is conducive to being brought rapidly up and being stably incubated for pyrolysis oven.
For achieving the above object, this utility model provides a kind of furnace temperature control of the thermal decomposition test device based on LabView
The system of system, the system is based on LabView control design cases.Advantage is that LabView utilizes the powerful graphics environment of computer, is adopted
With visual graphical programming language and platform, to set up patterned softpanel on the computer screen conventional biography is substituted
System board.There are the knob similar to actual instrumentation, switch, display lamp and other control units on softpanel.In operation
When, user comes the communication and operation of testing instruments by mouse or keyboard operation softpanel.In addition, user can be according to oneself
Need neatly define the function of instrument, various instruments may make up by the combination of difference in functionality module, without being limited to
The specific function that apparatus manufacture is provided.It can also be edited in real time, directly to data.
System described in the utility model includes industrial computer, serial server, measurement of furnace temperature module, power regulating eqiupment current/voltage
Measurement module and analog output module.
The industrial computer, for running LabView monitoring programmes, monitors the Furnace Temperature Control System.
The serial server, by Ethernet be connected with the industrial computer offer serial ports turn network function, the serial ports
Server includes serial port COM1, COM2 and COM3.
The measurement of furnace temperature module, is connected, for detecting assay device with the serial port COM1 of the serial server
The temperature in three areas, and Temperature numerical is passed to the LabView monitoring programmes run on the industrial computer.
The power regulating eqiupment current/voltage measuring module, is connected, for surveying with the serial port COM2 of the serial server
Voltage on amount power output line, and voltage value is passed to the LabView monitoring programmes run on the industrial computer.
The analog output module, is connected with the serial port COM3 of the serial server, for receiving from institute
The control signal of the LabView monitoring programmes run on industrial computer is stated, then the control signal voltage signal is converted to into, and
The voltage signal is sent to the power regulating eqiupment current/voltage measuring module.
Further, the system also include display, be connected with the industrial computer, for show measurement of furnace temperature module,
Power regulating eqiupment current/voltage measuring module surveys the working condition of data and the system.
Further, the measurement of furnace temperature module includes intellect digital display and thermocouple.The thermocouple is separately positioned on
In each area of assay device body of heater, the thermocouple two ends are provided with the intellect digital display.
Further, the power regulating eqiupment current/voltage measuring module, including current transformer, single-phase electric energy meter and Power Regulation
Device.Current transformer is provided with the power regulating eqiupment power output line, the current transformer is connected with the single-phase electric energy meter.
Further, the analog output module includes multiple passages, respectively with the power regulating eqiupment, assay device
Charging speed regulator and heating speed regulator are connected.The analog output module receives the control signal from the industrial computer, so
Afterwards the power regulating eqiupment is controlled by voltage signal.
In addition the analog output module can also receive the control signal from the industrial computer, and then according to control letter
The feeding spiral conveyer and the transporting velocity of heating type screw conveyor of number Control experiment device.
The beneficial effects of the utility model are to be easily achieved based on temperature control of the present utility model, are greatlyd save out
The time of sending out, and by the monitoring programme of LabView software developments, it is easy to accomplish the record of experimental data, is Pyrolysis Experiment data point
Analysis is had laid a good foundation.The stagewise temperature-controlled process is conducive to being brought rapidly up and is stably incubated, temperature control precision
It is high.
Description of the drawings
Fig. 1 is the system structure diagram of the Control for Kiln Temperature of thermal decomposition test device.
The area's temperature section formula control program figures of Tu2Shi mono-.
Description of reference numerals is as follows：
1：Industrial computer
101：Display
2：Serial server
3：Measurement of furnace temperature module
301：Intellect digital display
302：Thermocouple
4：Power regulating eqiupment current/voltage measuring module
401：Current transformer
402：Single-phase electric energy meter
403：Power regulating eqiupment
5：Analog output module
Specific embodiment
Below in conjunction with drawings and Examples, specific embodiment of the present utility model is described in more details, with
Just better understood when the advantage of scheme of the present utility model and its various aspects.However, specific implementations described below side
Formula and embodiment are only descriptive purposes, rather than to restriction of the present utility model.
Need to provide assay device as described below for this utility model, the assay device by pyrolysis oven, feeding part,
Heated transportation part, go out slag part, go out oil gas part etc. composition.Pyrolysis furnace body is divided into 3 areas, there is 3 heating tubes, pyrolysis oven
The heat that interior temperature is produced by heating tube is providing.Charging and heating mainly have two conveying worms to constitute, elevating hopper the inside
Rubbish particle (such as useless PCB) give heating type screw conveyor by feeding spiral conveyer.Heating type screw conveyor is with certain
Speed precession, it is ensured that rubbish particle has time enough to complete pyrolysis in pyrolysis oven, and the oil gas of generation is collected by air accumulator,
Pyrolysis residue is collected and is further processed.
This utility model is illustrated with reference to thermal decomposition test device：
As shown in figure 1, this utility model is there is provided a kind of Control for Kiln Temperature of the thermal decomposition test device based on LabView
System, the system includes industrial computer 1, serial server 2, measurement of furnace temperature module 3, power regulating eqiupment current/voltage measuring module 4 and simulation
Amount output module 5.
As shown in figure 1, the industrial computer 1, for running LabView monitoring programmes, monitors the Furnace Temperature Control System.Institute
State industrial computer 1 and be also associated with display 101, for showing that measurement of furnace temperature module 3, power regulating eqiupment current/voltage measuring module 4 are surveyed
The working condition of data and the system.
As shown in figure 1, the serial server 2, network work(is turned by the Ethernet offer serial ports that is connected with the industrial computer
Can, the serial server 2 includes serial port COM1, COM2 and COM3.
As shown in figure 1, the measurement of furnace temperature module 3, is connected with the serial port COM1 of the serial server 2, it is used for
The temperature in three areas of detection assay device, and Temperature numerical is passed to the LabView monitoring journeys run on the industrial computer 1
Sequence.The measurement of furnace temperature module 3 includes intellect digital display 301 and thermocouple 302.The thermocouple 302 is separately positioned on test
In each area of device body of heater, the two ends of the thermocouple 302 are provided with the intellect digital display 301, with the intellect digital display 301
The furnace temperature of the temperature of measurement thermocouple 302, the temperature i.e. fast pyrogenation assay device.
As shown in figure 1, the power regulating eqiupment current/voltage measuring module 4, the serial port with the serial server 2
COM2 is connected, and for measuring the voltage on power output line, and voltage value is passed to into what is run on the industrial computer 1
LabView monitoring programmes.The power regulating eqiupment current/voltage measuring module 4, including current transformer 401, single-phase electric energy meter 402
And power regulating eqiupment 403.The current transformer 401, the current transformer are provided with the power output line of the power regulating eqiupment 403
401 are connected with the single-phase electric energy meter 402, for measuring the electric current and voltage of power regulating eqiupment 403.
As shown in figure 1, the analog output module 5, is connected with the serial port COM3 of the serial server 2, use
In the control signal for receiving the LabView monitoring programmes of 1 operation on the industrial computer, then the control signal is changed
For voltage signal, and the voltage signal is sent to the power regulating eqiupment current/voltage measuring module 4.
As shown in figure 1, the analog output module 5 includes multiple passages, respectively with the power regulating eqiupment 403, test dress
The charging speed regulator and heating speed regulator (not shown) put is connected.The analog output module 5 is received from the industrial computer 1
Control signal, then the power regulating eqiupment 403 is controlled by voltage signal.
Additionally, as shown in Fig. 2 this utility model also provides a kind of method that utilization said system controls furnace temperature, the method
Comprise the following steps：
1) arranged based on LabView control programs and expect temperature value SV, an area shown in Figure 2 preferred temperature, Yi Jisuo
State the lower limit T of preferred temperature value SVLWith upper limit TH, lower bound shown in Figure 2 and high limit；The LabView monitoring programmes pass through
The serial server 2 connects up the industrial computer 1, and the intellect digital display of ModBus rtu protocols is supported in connection downwards
301st, the single-item electric energy meter 402 and the analog output module 5.
2) area's temperature is measured with the measurement of furnace temperature module 3, is defined as actual temperature value PV, and by the string
Mouth server 2 uploads to the industrial computer 1；
3) industrial computer 1 judges the lower limit T of actual temperature value PV and preferred temperature value SVLWith upper limit THRelation, will
It is defined as calculation error e, and the computing formula of the error is calculation errorWherein,
K is the index of sampled signal at time k*t, and e (k) represents current calculation error, and SV represents preferred temperature value, PV tables
Show actual temperature value.Then LabView monitoring programmes are performed；
4) the LabView monitoring programmes in the industrial computer send control signal, and the analog output module 5 controls this
Signal processed is converted to voltage signal, and the expression formula of the voltage signal is
Wherein,
UoutIt is the voltage signal for passing to the power regulating eqiupment；VmaxBe the voltage signal that receives of the power regulating eqiupment most
Big value, is 150V；P is demand load rate, unit %；TLIt is the lower limit of the preferred temperature；THIt is the upper of the preferred temperature
Limit.
The scope of the voltage signal typically in 0～10V, the voltage signal is passed to by analog output module 5 described
Power regulating eqiupment 403, the then voltage at the Control experiment device heating tube two ends of the power regulating eqiupment 403 and feeding spiral conveyer and heating
The hardware configuration of the thermal decomposition test device of conveying worm, realizes Control for Kiln Temperature.
Additionally, the LabView monitoring programmes also include PID subprograms, the PID subprograms calculate output result and obtain
U (k) is given to a global variable voltage, the voltage is given the numerical value for transmitting and is passed to the power regulating eqiupment 403, can gradually be made
The close preferred temperature SV of actual temperature PV.
In more detail, because the assay device is divided into three areas, and the temperature control principle in each area is identical, so below
The temperature control in the areas of Jin Yi mono- is illustrated to utility model.As shown in Fig. 2 LabView monitoring programmes described in the utility model
It is main to select function to realize control with the construction of condition of two nestings and one.
As shown in Fig. 2 preferred temperature SV and actual temperature PV are compared, to expect the lower limit T of temperature value SVLAnd the upper limit
THTo separate heating period, holding stage and stop the heating period.
As shown in Fig. 2 it is a global variable that an area PID voltages are given, it is that output result transmission is calculated by PID subprograms
Obtained from.P, I, D parameter that this assay device is obtained with trial and error procedure, P, I, D parameter of area's heater is respectively 180,10,
0.1；PID controller output upper and lower limit is respectively 150 and 0, and demand load rate P is 80%, it is ensured that adjusted between 0～150V
The output voltage of power regulating eqiupment 403.Lower limit TLWith upper limit TH(adjustable) arrange here for 3 DEG C and 0.5 DEG C.Preferred temperature SV (can
Adjust) according to technological requirement, it is arranged on 600 DEG C.
As shown in Fig. 2 working as e (k)>TLWhen, it is the heating period.Construction of condition outside now performing for genuine branch,
Construction of condition perform simultaneously inside for genuine branch, make area's intensification display lamp greening, area's insulation indicator lamp redden, together
When make true value to selecting switch.By the local variable of selecting switch, true value is passed to selection function, select function one
Area's intensification voltage gives the area's power regulating eqiupments 403 of Zhi Gei mono- of transmission, makes power regulating eqiupment 403 with certain voltage and drives area's heating tube,
Realization is brought rapidly up.
As shown in Fig. 2 as-TH<e(k)<TLWhen, it is holding stage.Now the construction of condition outside program performing is true
Branch, while the construction of condition inside performing is false branch, make area's intensification display lamp redden, area's insulation indicator lamp
Greening, while making falsity to selecting switch.Function is selected to receive falsity, the area's PID voltages of Ji Ba mono- give the numerical value for transmitting
To area's power regulating eqiupment 403, the close preferred temperature SV of actual temperature PV is gradually made.
As shown in Fig. 2 working as e (k)<-THWhen, it is to stop the heating period.Now the construction of condition outside program performing is
False branch, makes area's intensification display lamp redden, and area's insulation indicator lamp reddens, while selecting switch is given true value, and 0 value
It is given to area's intensification voltage, the voltage at an area heating tube two ends is thus disconnected, make heating tube Temperature fall.
It should be noted that each embodiment above by reference to described by accompanying drawing is only to illustrate this utility model rather than limit
Scope of the present utility model is made, it will be understood by those within the art that, without departing from spirit of the present utility model and model
The modification carried out to this utility model on the premise of enclosing or equivalent, all should cover within the scope of this utility model.
Additionally, unless the context outside indication, the word for occurring in the singular includes plural form, and vice versa.In addition, removing non-specifically
Explanation, then any embodiment all or part of can with reference to any other embodiment all or part of using.
Claims (5)
1. a kind of Furnace Temperature Control System of the thermal decomposition test device based on LabView, it is characterised in that the system includes industry control
Machine, serial server, measurement of furnace temperature module, power regulating eqiupment current/voltage measuring module and analog output module, wherein：
The industrial computer, for running LabView monitoring programmes, monitors the Furnace Temperature Control System；
The serial server, by Ethernet be connected with the industrial computer offer serial ports turn network function, the serial port service
Device includes serial port COM1, COM2 and COM3；
The measurement of furnace temperature module, is connected with the serial port COM1 of the serial server, for detecting assay device three
The temperature in area, and Temperature numerical is passed to the LabView monitoring programmes run on the industrial computer；
The power regulating eqiupment current/voltage measuring module, is connected, for measuring work(with the serial port COM2 of the serial server
Voltage on rate output lead, and voltage value is passed to the LabView monitoring programmes run on the industrial computer；
The analog output module, is connected with the serial port COM3 of the serial server, for receiving from the work
The control signal of the LabView monitoring programmes run on control machine, is then converted to voltage signal by the control signal, and sends
The voltage signal is to the power regulating eqiupment current/voltage measuring module.
2. the system as claimed in claim 1, it is characterised in that the system also includes display, is connected with the industrial computer,
For showing that measurement of furnace temperature module, power regulating eqiupment current/voltage measuring module survey the working condition of data and the system.
3. the system as claimed in claim 1, it is characterised in that the measurement of furnace temperature module includes intellect digital display and thermoelectricity
It is even；
The thermocouple is separately positioned in each area of assay device body of heater, and the thermocouple two ends are provided with the intelligent digital
Table.
4. the system as claimed in claim 1, it is characterised in that the power regulating eqiupment current/voltage measuring module, including electric current is mutual
Sensor, single-phase electric energy meter and power regulating eqiupment；
Current transformer, the current transformer and the single-phase electric energy meter phase are provided with the power regulating eqiupment power output line
Even.
5. the system as claimed in claim 1, it is characterised in that the analog output module includes multiple passages, respectively with
The power regulating eqiupment, the charging speed regulator of assay device and heating speed regulator are connected；
The analog output module receives the control signal from the industrial computer, then controls the tune by voltage signal
Work(device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621085421.XU CN206147330U (en) | 2016-09-27 | 2016-09-27 | Pyrolysis test device's stove temperature control system based on labView |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621085421.XU CN206147330U (en) | 2016-09-27 | 2016-09-27 | Pyrolysis test device's stove temperature control system based on labView |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206147330U true CN206147330U (en) | 2017-05-03 |
Family
ID=58620187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621085421.XU Expired - Fee Related CN206147330U (en) | 2016-09-27 | 2016-09-27 | Pyrolysis test device's stove temperature control system based on labView |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206147330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108154742A (en) * | 2018-02-05 | 2018-06-12 | 苏州市职业大学（苏州开放大学） | A kind of industry Internet of Things practice teaching platform |
-
2016
- 2016-09-27 CN CN201621085421.XU patent/CN206147330U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108154742A (en) * | 2018-02-05 | 2018-06-12 | 苏州市职业大学（苏州开放大学） | A kind of industry Internet of Things practice teaching platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: LabView-based furnace temperature control system of pyrolysis test apparatus, and method Effective date of registration: 20180322 Granted publication date: 20170503 Pledgee: The Bank of Beijing Limited by Share Ltd. Anwar Road Branch Pledgor: Shenwu Technology Group Co.,Ltd. Registration number: 2018990000210 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190121 Granted publication date: 20170503 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220921 Granted publication date: 20170503 |
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| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 |
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| CF01 | Termination of patent right due to non-payment of annual fee |