CN207601645U - A kind of infrared temperature regulating device and system - Google Patents
A kind of infrared temperature regulating device and system Download PDFInfo
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- CN207601645U CN207601645U CN201721142423.2U CN201721142423U CN207601645U CN 207601645 U CN207601645 U CN 207601645U CN 201721142423 U CN201721142423 U CN 201721142423U CN 207601645 U CN207601645 U CN 207601645U
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Abstract
The utility model discloses a kind of infrared temperature regulating device and systems, accurately to control molten steel temperature, improve alloy product performance.The infrared temperature regulating device includes infrared radiation thermometer and programmable controller PLC controller, the signal output end of the infrared radiation thermometer is connected with the input terminal of the PLC controller, the output terminal of the PLC controller is connected with the control signal of intermediate frequency power supply, wherein：The infrared radiation thermometer, for generating measuring signal according to the molten steel temperature of measurement；Measuring signal is exported to the PLC controller by the signal output end；The PLC controller, for the measuring signal temperature adjusted value according to pre-stored desired temperature and infrared radiation thermometer output；Control signal is exported to the intermediate frequency power supply according to the temperature adjusted value determined so that the intermediate frequency power supply adjusts output power to control the molten steel temperature according to the control signal.
Description
Technical field
The utility model is related to technical field of electric control more particularly to a kind of infrared temperature regulating device and systems.
Background technology
The embodiment of the utility model of This part intends to be stated in claims provides background or context.This
The description at place recognizes it is the prior art not because not being included in this part.
When preparing alloy by method of smelting, molten steel temperature fluctuation can have an immense impact on to final products performance, so
Accurate control molten steel temperature is of great significance to alloy production.
However traditional temp measuring method is all to carry out thermometric using contact thermocouple, for being added using Medium frequency induction
The equipment of heat, traditional temperature sensing means are easily interfered by intermediate frequency magnetic field, the method for thermometric universal at present be before thermometric first will in
Frequency power is closed, and thermocouple is inserted into molten steel, treats to take out thermocouple after thermometric, then reopens intermediate frequency power supply progress
Heating.
The temp measuring method of this contact can only realize the thermometric of discontinuity, and the temperature measured is more inclined than actual temperature
It is low, it is difficult to be accurately controlled the temperature of molten steel.
Utility model content
The embodiment of the present invention provides a kind of infrared temperature regulating device and system, accurately to control molten steel temperature, improves alloy
Properties of product.
The embodiment of the present invention provides a kind of infrared temperature regulating device, is controlled including infrared radiation thermometer and programmable controller PLC
Device, the signal output end of the infrared radiation thermometer are connected with the input terminal of the PLC controller, the output of the PLC controller
End is connected with the control signal of intermediate frequency power supply, wherein：
The infrared radiation thermometer, for generating measuring signal according to the molten steel temperature of measurement；Pass through the signal output end
Measuring signal is exported to the PLC controller；
The PLC controller, for the measurement according to pre-stored desired temperature and infrared radiation thermometer output
Signal temperature adjusted value；Control signal is exported to the intermediate frequency power supply according to the temperature adjusted value determined so that described
Intermediate frequency power supply adjusts output power to control the molten steel temperature according to the control signal.
In a possible embodiment, the measuring signal is analog signal；The PLC controller includes central processing
Unit CPU module, proportional integral differential pid control module and D/A D/A modular converters, wherein：
Residing CPU module, for storing pre-set desired temperature；And it is sent according to the pid control module
Temperature adjusted value generation digital controlled signal and be sent to the D/A modular converters；
The pid control module, for receiving the measuring signal of the infrared radiation thermometer output by the input terminal；And
The measuring signal is converted into digital signal；The desired temperature is obtained from the CPU module；And it is set according to the temperature
Definite value and the measuring signal temperature adjusted value；And it is sent to the CPU module；
The D/A modular converters are exported for the digital controlled signal to be converted to analog control signal in described
The control signal of frequency power.
In a possible embodiment, the infrared radiation thermometer includes double color infrared temperature measuring instrument.
In a possible embodiment, the power end of the infrared radiation thermometer is connected with direct-current switch power supply.
Infrared temperature-controlling system provided in an embodiment of the present invention, including infrared temperature regulating device and furnace body, induction coil, crucible
And intermediate frequency power supply, wherein, the crucible is set in the furnace body, and molten steel is filled in the crucible；The induction coil setting
Outside the crucible；The infrared temperature regulating device includes infrared radiation thermometer and programmable controller PLC controller, described infrared
Temperature measurer is set in the furnace body, and the temperature measuring point of the infrared radiation thermometer is directed at the molten steel in the crucible；The infrared survey
The signal output end of Wen Yi is connected with the input terminal of the PLC controller, the output terminal of the PLC controller and intermediate frequency power supply
Control signal is connected；The induction coil is connected with the control output end of the intermediate frequency power supply, wherein：
The infrared radiation thermometer, for generating measuring signal according to the molten steel temperature of measurement；Pass through the signal output end
Measuring signal is exported to the PLC controller；
The PLC controller, for the measurement according to pre-stored desired temperature and infrared radiation thermometer output
Signal temperature adjusted value；Control signal is exported to the intermediate frequency power supply according to the temperature adjusted value determined so that described
Intermediate frequency power supply exports to the power of the induction coil to control the molten steel temperature according to the control signal adjustment.
In a possible embodiment, the measuring signal is analog signal；The PLC controller includes central processing
Unit CPU module, PID (proportional integral differential) control modules and D/A (D/A) modular converter, wherein：
Residing CPU module, for storing pre-set desired temperature；And it is sent according to the pid control module
Temperature adjusted value generation digital controlled signal and be sent to the D/A modular converters；
The pid control module, for receiving the measuring signal of the infrared radiation thermometer output by the input terminal；And
The measuring signal is converted into digital signal；The desired temperature is obtained from the CPU module；And it is set according to the temperature
Definite value and the measuring signal temperature adjusted value；And it is sent to the CPU module；
The D/A modular converters are exported for the digital controlled signal to be converted to analog control signal in described
The control signal of frequency power.
In a possible embodiment, the infrared radiation thermometer includes double color infrared temperature measuring instrument.
In a possible embodiment, the power end of the infrared radiation thermometer is connected with direct-current switch power supply.
In a possible embodiment, the induction coil is exported by the control of water-cooled cable and the intermediate frequency power supply
End is connected.
Infrared temperature regulating device provided by the utility model and system, by the temperature of infrared radiation thermometer test constantly molten steel,
And generate measuring signal and be sent to PLC controller, pre-stored desired temperature and the survey received are combined by PLC controller
Amount signal temperature adjusted value simultaneously outputs control signals to intermediate frequency power supply, by intermediate frequency power supply according to the control signal tune received
Whole output power controls molten steel temperature, hereby it is achieved that continuously measure to molten steel temperature and carried out according to measurement result
Accurate control improves the performance of alloy product.
Other features and advantages of the utility model will illustrate, also, in the following description partly from specification
In become apparent or understood by implementing the utility model.The purpose of this utility model and other advantages can pass through
Specifically noted structure is realized and is obtained in the specification, claims and attached drawing write.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and forms one of the utility model
Point, the illustrative embodiments and their description of the utility model are not formed for explaining the utility model to the utility model
Improper restriction.In the accompanying drawings：
Fig. 1 is the structure diagram of infrared temperature regulating device in the utility model；
Fig. 2 is the structure diagram of infrared temperature-controlling system in the utility model.
It illustrates：1st, furnace body；2nd, induction coil；3rd, crucible；4th, infrared radiation thermometer；5th, PLC controller；6th, medium frequency electric
Source；7th, water-cooled cable；51st, CPU module；52nd, pid control module；53rd, D/A modular converters.
Specific embodiment
In order to accurately control molten steel temperature, the performance of alloy product is improved, an embodiment of the present invention provides a kind of infrared controls
Warm device and system.
The preferred embodiment of the utility model is illustrated below in conjunction with Figure of description, it should be understood that retouch in this place
The preferred embodiment stated is only used for describing and explaining the present invention, and is not used to limit the utility model, and do not conflicting
In the case of, the feature in embodiment and embodiment in the utility model can be combined with each other.
As shown in Figure 1, it is the structure diagram of infrared temperature regulating device that utility model provides, including infrared radiation thermometer 4
With PLC controller 5, the signal output end of the infrared radiation thermometer 4 is connected with the input terminal of the PLC controller 5, the PLC
The output terminal of controller 5 is connected with the control signal of intermediate frequency power supply 6, wherein：
The infrared radiation thermometer 4, for generating measuring signal according to the molten steel temperature of measurement；Pass through the signal output end
Measuring signal is exported to the PLC controller 5；
The PLC controller 5, for the survey according to pre-stored desired temperature and the output of the infrared radiation thermometer 4
Measure signal temperature adjusted value；Control signal is exported to the intermediate frequency power supply 6 according to the temperature adjusted value determined so that institute
Intermediate frequency power supply 6 is stated according to the control signal adjustment output power to control the molten steel temperature.
When it is implemented, infrared radiation thermometer 4 is fixed in furnace body, power end is connected with direct-current switch power supply, and makes it
Molten steel in temperature measuring point alignment melting kettle is exported according to the molten steel temperature generation measuring signal measured by signal output end
To PLC (programmable controller) controller, after carrying out PID (proportional integral differential) operation inside PLC, output control signal
To intermediate frequency power supply, and then change the output power of intermediate frequency power supply.
The utility model temperature regulating device is simple in structure, and temperature-controlled precision is high, solves conventional contact temp measuring method easily by
Frequency power interference is difficult to the problem of long-time thermometric.
In one embodiment, PLC controller 5 includes central processing unit CPU module 51, pid control module 52 and D/A
(D/A) converter 53, wherein：
Residing CPU module 51, for storing pre-set desired temperature；And according to the pid control module 52
The temperature adjusted value generation digital controlled signal of transmission is simultaneously sent to the D/A modular converters 53；
The pid control module 52, the measurement for receiving the output of infrared radiation thermometer 4 by the input terminal are believed
Number；And the measuring signal is converted into digital signal；The desired temperature is obtained from the CPU module 51；And according to institute
State desired temperature and the measuring signal temperature adjusted value；And it is sent to the CPU module 51；
The D/A modular converters 53 are exported for the digital controlled signal to be converted to analog control signal to described
The control signal of intermediate frequency power supply 6.
Preferably, the analog signal that the measuring signal of infrared radiation thermometer output is 4-20mA.Protection of infrared radiation thermometer etc.
Grade is IP65, more preferably, high temperature may be used in order to exclude interference of the dust to temperature measurement result, infrared radiation thermometer in furnace body
Two-color Measure Thermometer.When it is implemented, in pid control module in the analog signal output to PLC controller of infrared radiation thermometer, first
Digital signal is converted into, is then compared digital signal and desired temperature, and carries out PID arithmetic and obtains temperature adjustment
Value, operation result is transferred in the CPU module of PLC controller 5.The CPU module of PLC controller is defeated according to pid control module
The temperature adjusted value generation control signal gone out, by control signal transmission to D/A modular converters, 4- is converted to by D/A modular converters
The analog signal of 20mA is output to the control signal of intermediate frequency power supply.Preferably, intermediate frequency power supply is exported according to D/A modular converters
4-20mA analog signal, automatic adjustment is output to the power of induction coil, so as to fulfill the closed-loop control of molten steel temperature.
In one embodiment, the infrared radiation thermometer 4 can be fluke EIRL types.
The utility model in order to better understand is implemented to carry out the implementation process of the utility model below in conjunction with specific
Explanation.
When it is implemented, the power cord of infrared radiation thermometer 4 and signal output line are drawn by the wiring flange on furnace body,
Power cord is connected in the Switching Power Supply of direct current 24V, and signal output line is connected to the defeated of the pid control module 52 of PLC controller 5
Enter on channel.
With the CPU module of PLC controller 5 with Mitsubishi's Q02CPU modules, pid control module is with Q64TCN, D/A modular converters
By taking Q64DAN as an example, program is set before operation inside PLC controller 5 in advance, and set desired temperature.PID control
The temperature analog signal received is converted into digital signal by module 52, is communicated with CPU module, by the temperature value of measurement with
The desired temperature of CPU module storage inside is compared, and carries out PID arithmetic, operation result is transmitted in CPU module, is passed through
D/A modular converters export the Analog control signal of 4-20mA.Intermediate frequency power supply 6 is with east four-way PZGS-250kW type IGBT inversions
Illustrate for medium frequency induction power supply, the control signal that the control that D/A modular converters export is signally attached to intermediate frequency power supply 6 inputs
End gets to " manual/auto " switch on " automatic " shelves, and intermediate frequency power supply 6 can automatically be adjusted according to the control signal received at this time
Save output power.
Infrared temperature regulating device provided by the utility model can realize continuous temperature measurement, and temperature measurement accuracy is not by dust shadow in stove
It rings, temperature control response is rapid, and consumptive material is not generated during temperature control, saves cost, can be applied to the molten steel temperature essence of induction furnace
Really control.
Based on same design, a kind of infrared temperature-controlling system is additionally provided in the utility model embodiment, due to above system
The principle solved the problems, such as is similar to infrared temperature regulating device, therefore the implementation of above system may refer to the reality of infrared temperature regulating device
It applies, overlaps will not be repeated.
As shown in Fig. 2, it is the structure diagram of infrared temperature-controlling system provided in an embodiment of the present invention, including furnace body 1, sense
Coil 2, crucible 3, intermediate frequency power supply 6 and infrared temperature regulating device are answered, the infrared temperature regulating device includes infrared radiation thermometer 4 and PLC is controlled
Device 5 processed, wherein：The crucible 3 is set in the furnace body 1, and molten steel is filled in the crucible 3；The induction coil 2 is set to
Outside the crucible 3；The infrared radiation thermometer 4 is set in the furnace body 1, and outside is equipped with one layer of thermal insulation protection set；Institute
State the molten steel in the temperature measuring point alignment crucible 3 of infrared radiation thermometer 4；The signal output end of the infrared radiation thermometer 4 with it is described
The input terminal of PLC controller 5 is connected, and the output terminal of the PLC controller 5 is connected with the control signal of intermediate frequency power supply 6；It is described
Induction coil 2 is connected with the control output end of the intermediate frequency power supply 6.
When it is implemented, the infrared radiation thermometer 4, for generating measuring signal according to the molten steel temperature of measurement；Pass through institute
It states signal output end and exports measuring signal to the PLC controller 5；The PLC controller 5, for according to pre-stored temperature
Spend the measuring signal temperature adjusted value of setting value and the output of the infrared radiation thermometer 4；According to the temperature adjusted value determined
Control signal is exported to the intermediate frequency power supply 6 so that the intermediate frequency power supply 6 adjusts output power to control according to the control signal
Make the molten steel temperature.
Preferably, in one embodiment, PLC controller 5 includes central processing unit CPU module 51, pid control module
52 and D/A (D/A) converter 53, wherein：
Residing CPU module 51, for storing pre-set desired temperature；And according to the pid control module 52
The temperature adjusted value generation digital controlled signal of transmission is simultaneously sent to the D/A modular converters 53；
The pid control module 52, the measurement for receiving the output of infrared radiation thermometer 4 by the input terminal are believed
Number；And the measuring signal is converted into digital signal；The desired temperature is obtained from the CPU module 51；And according to institute
State desired temperature and the measuring signal temperature adjusted value；And it is sent to the CPU module 51；
The D/A modular converters 53 are exported for the digital controlled signal to be converted to analog control signal to described
The control signal of intermediate frequency power supply 6.
Preferably, the infrared radiation thermometer 4 includes double color infrared temperature measuring instrument.
Preferably, the power end of the infrared radiation thermometer 4 is connected with direct-current switch power supply.
Preferably, the induction coil 2 is connected by water-cooled cable 7 with the control output end of the intermediate frequency power supply 6.
Although the preferred embodiment of the utility model has been described, those skilled in the art once know substantially
Creative concept can then make these embodiments other change and modification.So appended claims are intended to be construed to wrap
It includes preferred embodiment and falls into all change and modification of the scope of the utility model.
Obviously, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (9)
1. a kind of infrared temperature regulating device, which is characterized in that described including infrared radiation thermometer and programmable controller PLC controller
The signal output end of infrared radiation thermometer is connected with the input terminal of the PLC controller, the output terminal and intermediate frequency of the PLC controller
The control signal of power supply is connected, wherein：
The infrared radiation thermometer, for generating measuring signal according to the molten steel temperature of measurement；By the signal output end to institute
State PLC controller output measuring signal；
The PLC controller, for the measuring signal according to pre-stored desired temperature and infrared radiation thermometer output
Temperature adjusted value；Control signal is exported to the intermediate frequency power supply according to the temperature adjusted value determined so that the intermediate frequency
Power supply adjusts output power to control the molten steel temperature according to the control signal.
2. infrared temperature regulating device as described in claim 1, which is characterized in that the measuring signal is analog signal；The PLC
Controller includes central processing unit CPU module, proportional integral differential pid control module and D/A D/A modular converters, wherein：
Residing CPU module, for storing pre-set desired temperature；And the temperature sent according to the pid control module
Degree adjusted value generation digital controlled signal is simultaneously sent to the D/A modular converters；
The pid control module, for receiving the measuring signal of the infrared radiation thermometer output by the input terminal；And by institute
It states measuring signal and is converted to digital signal；The desired temperature is obtained from the CPU module；And according to the desired temperature
With the measuring signal temperature adjusted value；And it is sent to the CPU module；
The D/A modular converters are exported for the digital controlled signal to be converted to analog control signal to the medium frequency electric
The control signal in source.
3. infrared temperature regulating device as claimed in claim 1 or 2, which is characterized in that the infrared radiation thermometer includes Dual band IR
Temperature measurer.
4. infrared temperature regulating device as claimed in claim 1 or 2, which is characterized in that the power end of the infrared radiation thermometer with it is straight
Current switching power supply is connected.
5. a kind of infrared temperature-controlling system, which is characterized in that including infrared temperature regulating device and furnace body, induction coil, crucible and in
Frequency power, wherein, the crucible is set in the furnace body, and molten steel is filled in the crucible；The induction coil is set to institute
It states outside crucible；The infrared temperature regulating device includes infrared radiation thermometer and programmable controller PLC controller, the infrared measurement of temperature
Instrument is set in the furnace body, and the temperature measuring point of the infrared radiation thermometer is directed at the molten steel in the crucible；The infrared radiation thermometer
Signal output end be connected with the input terminal of the PLC controller, the control of the output terminal and intermediate frequency power supply of the PLC controller
Input terminal is connected；The induction coil is connected with the control output end of the intermediate frequency power supply, wherein：
The infrared radiation thermometer, for generating measuring signal according to the molten steel temperature of measurement；By the signal output end to institute
State PLC controller output measuring signal；
The PLC controller, for the measuring signal according to pre-stored desired temperature and infrared radiation thermometer output
Temperature adjusted value；Control signal is exported to the intermediate frequency power supply according to the temperature adjusted value determined so that the intermediate frequency
Power supply exports to the power of the induction coil to control the molten steel temperature according to the control signal adjustment.
6. system as claimed in claim 5, which is characterized in that the measuring signal is analog signal；The PLC controller packet
Central processing unit CPU module, proportional integral differential pid control module and D/A D/A modular converters are included, wherein：
Residing CPU module, for storing pre-set desired temperature；And the temperature sent according to the pid control module
Degree adjusted value generation digital controlled signal is simultaneously sent to the D/A modular converters；
The pid control module, for receiving the measuring signal of the infrared radiation thermometer output by the input terminal；And by institute
It states measuring signal and is converted to digital signal；The desired temperature is obtained from the CPU module；And according to the desired temperature
With the measuring signal temperature adjusted value；And it is sent to the CPU module；
The D/A modular converters are exported for the digital controlled signal to be converted to analog control signal to the medium frequency electric
The control signal in source.
7. system as claimed in claim 5, which is characterized in that the infrared radiation thermometer includes double color infrared temperature measuring instrument.
8. system as claimed in claim 5, which is characterized in that the power end of the infrared radiation thermometer and direct-current switch power supply phase
Even.
9. the system as described in claim 5~8 any claim, which is characterized in that the induction coil passes through water cooling electricity
Cable is connected with the control output end of the intermediate frequency power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721142423.2U CN207601645U (en) | 2017-09-06 | 2017-09-06 | A kind of infrared temperature regulating device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721142423.2U CN207601645U (en) | 2017-09-06 | 2017-09-06 | A kind of infrared temperature regulating device and system |
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| CN207601645U true CN207601645U (en) | 2018-07-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672427A (en) * | 2019-10-17 | 2020-01-10 | 山东大学 | System and method for testing high-temperature mechanical properties of plate in one-way stretching mode |
-
2017
- 2017-09-06 CN CN201721142423.2U patent/CN207601645U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672427A (en) * | 2019-10-17 | 2020-01-10 | 山东大学 | System and method for testing high-temperature mechanical properties of plate in one-way stretching mode |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100088 Beijing city Xicheng District Xinjiekou Avenue No. 2 Patentee after: GRIREM ADVANCED MATERIALS Co.,Ltd. Patentee after: Youyan Rare Earth High Tech Co., Ltd Address before: 100088 Beijing city Xicheng District Xinjiekou Avenue No. 2 Patentee before: GRIREM ADVANCED MATERIALS Co.,Ltd. Patentee before: GUOKE RE ADVANCED MATERIALS Co.,Ltd. |
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