CN203224797U - High-precision temperature control system for electric arc furnaces - Google Patents
High-precision temperature control system for electric arc furnaces Download PDFInfo
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- CN203224797U CN203224797U CN 201320028158 CN201320028158U CN203224797U CN 203224797 U CN203224797 U CN 203224797U CN 201320028158 CN201320028158 CN 201320028158 CN 201320028158 U CN201320028158 U CN 201320028158U CN 203224797 U CN203224797 U CN 203224797U
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- temperature
- control system
- temperature control
- programmable controller
- signal output
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Abstract
The utility model discloses a high-precision temperature control system for electric arc furnaces. The high-precision temperature control system comprises a PLC host and a programmable controller connected with the PLC host, wherein a signal output terminal of the programmable controller is connected with a signal input terminal of a solid state relay, a signal output terminal of the solid state relay is connected with an electric arc furnace, a temperature-sensitive wire of a temperature-detecting device is connected with a temperature sensor installed in the electric arc furnace, and a signal output terminal of the temperature-detecting device is connected with the programmable controller. According to the high-precision temperature control system, automatic control of the electric arc furnace temperature is achieved by utilization of the programmable controller, temperature control is accurate, and operation cost of the whole system is low.
Description
Technical field
The utility model relates to a kind of temperature control system, is specifically related to a kind of high precision electrothermal stove temperature control system.
Background technology
Electrothermal stove is one of thermal treatment common equipment, and electrothermal stove can provide the temperature field of room temperature to 1200 ℃ scope.The temperature constant of a certain scope of maintaining heat electric furnace is the problem that must solve.At present, electrothermal stove adopts analogue instrument to measure temperature usually, and controls heating power by the make-and-break time ratio of control A.C. contactor, because the measuring accuracy of analogue instrument itself is poor, the life-span that adds A.C. contactor is short, and the break-make ratio is low, so control accuracy is low.
The utility model content
Technical problem to be solved in the utility model provides a kind of high precision electrothermal stove temperature control system, and this control system can be regulated the electrothermal stove temperature automatically, and the precision height.
For solving the problems of the technologies described above, a kind of high precision electrothermal stove of the utility model temperature control system, comprise PLC main frame and the programmable controller that links to each other with described PLC main frame, the signal output part of described programmable controller is connected with the signal input part of solid-state relay, the signal output part of described solid-state relay is connected with electrothermal stove, the temp.-sensing wire of the temperature-detecting device temperature sensor interior with being installed in described electrothermal stove is connected, and the signal output part of temperature-detecting device is connected with described programmable controller.
Be to realize the be connected signal input part of communication module of remote monitoring, the signal output part of above-mentioned PLC main frame.
When above-mentioned communication module is wireless radio frequency modules, can realize the wireless remote transmission of temperature data in the electrothermal stove, with convenient temperature be controlled in real time.
Compared with prior art, the beneficial effects of the utility model are:
The utility model uses programmable controller can realize the electrothermal stove temperature auto control, and temperature control is accurate, and total system operating cost is cheap.The be connected signal input part of communication module of the signal output part of the utility model PLC main frame is connected with master control room by wired or wireless network, thereby can realizes remote data monitoring.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the schematic diagram of a kind of high precision electrothermal stove of the utility model temperature control system.
Embodiment
As shown in Figure 1, a kind of high precision electrothermal stove temperature control system, comprise PLC main frame 2 and the programmable controller 3 that links to each other with described PLC main frame 2, the signal output part of described programmable controller 3 is connected with the signal input part of solid-state relay 4, the signal output part of described solid-state relay 4 is connected with electrothermal stove 5, the temp.-sensing wire of temperature-detecting device 6 is connected with temperature sensor in being installed in described electrothermal stove 5, and the signal output part of temperature-detecting device 6 is connected with described programmable controller 3.
The utility model course of work is as follows: earlier temperature preset value (as 0～1200 ℃) is imported PLC main frame 2 by keyboard 1, pass to programmable controller 3 by PLC main frame 2 again, programmable controller 3 is selected the Micrologix1500 controller for use, the Micrologix1500 programmable controller comprises power supply, analog quantity load module, digital quantity output module and processor, signal by 2 transmission of PLC main frame is controlled the on off state of solid-state relay 4 through the digital quantity output module, thereby controls the heating state of electrothermal stove 5; The detected furnace temperature value that is transformed to current signal of the thermopair of temperature-detecting device 6 is read in PLC main frame 2 by the analog quantity load module in the programmable controller 3, program by PLC main frame 2 inner PID is compared with the temperature preset value, and the digital quantity output module in the programmable controller 3 is carried out next step control.
Be to realize the be connected signal input part of communication module of remote monitoring, the signal output part of PLC main frame 2, this communication module is connected with master control room by wired or wireless network, thereby can realize remote data monitoring.
Claims (3)
1. high precision electrothermal stove temperature control system, comprise PLC main frame (2) and the programmable controller (3) that links to each other with described PLC main frame (2), it is characterized in that: the signal output part of described programmable controller (3) is connected with the signal input part of solid-state relay (4), the signal output part of described solid-state relay (4) is connected with electrothermal stove (5), the temp.-sensing wire of temperature-detecting device (6) temperature sensor interior with being installed in described electrothermal stove (5) is connected, and the signal output part of temperature-detecting device (6) is connected with described programmable controller (3).
2. a kind of high precision electrothermal stove temperature control system according to claim 1 is characterized in that: the be connected signal input part of communication module of the signal output part of described PLC main frame (2).
3. a kind of high precision electrothermal stove temperature control system according to claim 2, it is characterized in that: described communication module is wireless radio frequency modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028158 CN203224797U (en) | 2013-01-18 | 2013-01-18 | High-precision temperature control system for electric arc furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028158 CN203224797U (en) | 2013-01-18 | 2013-01-18 | High-precision temperature control system for electric arc furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203224797U true CN203224797U (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320028158 Expired - Fee Related CN203224797U (en) | 2013-01-18 | 2013-01-18 | High-precision temperature control system for electric arc furnaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203224797U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317328A (en) * | 2014-11-21 | 2015-01-28 | 桂林科技企业发展中心 | Resistance furnace temperature control system based on PLC |
| CN105527995A (en) * | 2014-09-29 | 2016-04-27 | 镇江石鼓文智能化系统开发有限公司 | Remote temperature control system and using method thereof |
| CN106350688A (en) * | 2015-07-21 | 2017-01-25 | 江西鑫建精密合金有限公司 | Preparation method of zinc-aluminum-silicon-(cerium, lanthanum) rare earth alloy |
| CN108966371A (en) * | 2018-06-29 | 2018-12-07 | 深圳和而泰小家电智能科技有限公司 | A kind of heating device and its method for heating and controlling |
-
2013
- 2013-01-18 CN CN 201320028158 patent/CN203224797U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527995A (en) * | 2014-09-29 | 2016-04-27 | 镇江石鼓文智能化系统开发有限公司 | Remote temperature control system and using method thereof |
| CN104317328A (en) * | 2014-11-21 | 2015-01-28 | 桂林科技企业发展中心 | Resistance furnace temperature control system based on PLC |
| CN106350688A (en) * | 2015-07-21 | 2017-01-25 | 江西鑫建精密合金有限公司 | Preparation method of zinc-aluminum-silicon-(cerium, lanthanum) rare earth alloy |
| CN108966371A (en) * | 2018-06-29 | 2018-12-07 | 深圳和而泰小家电智能科技有限公司 | A kind of heating device and its method for heating and controlling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20150118 |
|
| EXPY | Termination of patent right or utility model |