CN204557174U - A kind of intelligent controlling device of industrial fan - Google Patents
A kind of intelligent controlling device of industrial fan Download PDFInfo
- Publication number
- CN204557174U CN204557174U CN201520286472.8U CN201520286472U CN204557174U CN 204557174 U CN204557174 U CN 204557174U CN 201520286472 U CN201520286472 U CN 201520286472U CN 204557174 U CN204557174 U CN 204557174U
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- contactor
- plc
- frequency converter
- pid controller
- power source
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- Y02P80/114—
Abstract
The utility model discloses a kind of intelligent controlling device of industrial fan, comprises PLC, PID controller, frequency converter, sensor, the first contactor and the second contactor, and sensor connects PLC; PLC controls the closed of the first contactor or disconnects to make blower motor connect external power source or disconnect with external power source; PLC controls the closed of the second contactor or disconnects to make blower motor connect frequency converter or disconnect with frequency converter; When described first contactor disconnects, the second contactor closes, PLC is according to the temperature or the flow signal that receive sensor, export an electric current to PID controller, PID controller and the desired value preset compare and computing, then export control signal to frequency converter, frequency converter exports according to the control signal of PID controller the running speed that corresponding frequencies controls blower motor; The running of the utility model to industrial fan realizes intelligentized control method, greatly reduces energy resource consumption.
Description
Technical field
The utility model relates to the control device of blower fan, especially a kind of intelligent controlling device of industrial fan.
Background technology
At field of industrial production, blower fan is seen everywhere, its effect is varied, and the effect of common blower fan mainly promotes air circulation, reduces the temperature of local space, the existing industrial fan for reducing local space, its control device is comparatively simple, can only operate, because the power of industrial fan is larger during running by rated power, the duration of runs is long, and this operating condition of blower fan comparatively consumes energy.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of intelligent controlling device of industrial fan, realizes intelligentized control method, greatly reduce energy resource consumption to the running of industrial fan.
For achieving the above object, the technical solution of the utility model is: a kind of intelligent controlling device of industrial fan, comprises PLC, PID controller, frequency converter, sensor, also comprises the first contactor and the second contactor, and sensor connects PLC;
PLC controls the closed of the first contactor or disconnects to make blower motor connect external power source or disconnect with external power source;
PLC controls the closed of the second contactor or disconnects to make blower motor connect frequency converter or disconnect with frequency converter;
When described first contactor disconnects, the second contactor closes, PLC is according to the temperature or the flow signal that receive sensor, export an electric current to PID controller, PID controller and the desired value preset compare and computing, then export control signal to frequency converter, frequency converter exports according to the control signal of PID controller the running speed that corresponding frequencies controls blower motor.
The current signal that preferred described PLC exports to PID controller is 0-10mA.
Further improvement, the circuit connecting external power source is provided with master switch.
Preferred described PID controller is arranged in PLC.To make structure more compact.
Further improvement, also comprises the 3rd contactor, and PLC controls the closed of the 3rd contactor or disconnect to make frequency converter connect external power source or disconnect with external power source.
The utility model controls the first contactor by PLC, blower motor can be made to be in the operation of power frequency state for the closed or disconnection of the second contactor or frequency conversion state is run.When being in frequency conversion state and running, by sensor, temperature signal or flow signal are passed to PLC, PLC exports an electric current to PID controller, PID controller and the desired value preset compare and computing, then control signal is exported to frequency converter, frequency converter exports according to the control signal of PID controller the running speed that corresponding frequencies controls blower motor, forms a closed-loop control.Like this intelligentized control method and adjustment are just realized to the running of industrial fan, greatly reduce energy resource consumption.
Accompanying drawing explanation
Fig. 1 is the utility model structure principle chart.
Embodiment
Below in conjunction with accompanying drawing and concrete embodiment, the utility model is described in further detail.
Shown in Fig. 1, a kind of intelligent controlling device of industrial fan, comprise PLC 1, PID(proportional-integral-differential) controller 2, frequency converter 3, sensor 4, first contactor 5, second contactor 6 and the 3rd contactor 7, sensor 4 connects the input end of PLC 1, the PID controller 2 of the present embodiment is arranged on PLC 1 inside, to make structure compacter.
The coil that an output terminal of PLC 1 connects the first contactor 5 controls the closed of the first contactor 5 or disconnects make blower motor 8 connect external power source or disconnect with external power source;
The coil that another output terminal of PLC 1 connects the second contactor 6 controls the closed of the second contactor 6 or disconnects make blower motor 8 connect frequency converter 3 or disconnect with frequency converter 3;
Another output terminal of PLC 1 connects the closed of coil control the 3rd contactor 7 of the 3rd contactor 7 or disconnects to be made frequency converter 3 connect external power source or disconnects with external power source;
The circuit connecting external power source is also provided with a master switch 9, and during work, master switch 9 is in closure state.
Temperature sensor selected by the sensor 4 of the present embodiment.
The control procedure of this implementation column is: when sensor 4 export temperature signal exceed controlling value larger time, PLC 1 controls that the second contactor 6 disconnects, the 3rd contactor 7 disconnects, the first contactor 5 closes, make blower motor 8 connect external power source to operate by rated power, large discharge is kept to export, to reduce temperatures at localized regions fast, now frequency converter 3 does not work;
When the closer controlling value of the temperature signal that sensor 4 exports, PLC 1 controls described first contactor 5 and disconnects, second contactor 6 and the 3rd contactor 7 close, PLC 1 is according to the temperature signal receiving sensor 4, export an electric current to PID controller 2, this range of current is 0-10mA, PID controller 2 compares and computing with the desired value preset, this desired value of the present embodiment is the temperature value preset, then PID controller 2 exports control signal to frequency converter 3, frequency converter 3 exports according to the control signal of PID controller 2 running speed that corresponding frequencies controls blower motor 8, when temperature is greater than setting value, frequency converter 3 output frequency increases, the running speed of blower motor 8 is accelerated, when temperature is less than setting value, frequency converter 3 output frequency reduces, the running speed of blower motor 8 is slack-off, finally reach energy-conservation and better controls local region and be in temperature constant state.
Sensor 4 of the present utility model also can select flow sensor.Also energy-conservation effect can be reached by the flow controlling blower fan.
Below be only the utility model preferred embodiment, those skilled in the art makes by claim the protection domain that equivalent change all falls into this case.
Claims (5)
1. an intelligent controlling device for industrial fan, comprises PLC, PID controller, frequency converter, sensor, it is characterized in that: also comprise the first contactor and the second contactor, and sensor connects PLC;
PLC controls the closed of the first contactor or disconnects to make blower motor connect external power source or disconnect with external power source;
PLC controls the closed of the second contactor or disconnects to make blower motor connect frequency converter or disconnect with frequency converter;
When described first contactor disconnects, the second contactor closes, PLC is according to the temperature or the flow signal that receive sensor, export an electric current to PID controller, PID controller and the desired value preset compare and computing, then export control signal to frequency converter, frequency converter exports according to the control signal of PID controller the running speed that corresponding frequencies controls blower motor.
2. the intelligent controlling device of a kind of industrial fan according to claim 1, is characterized in that: the current signal that described PLC exports to PID controller is 0-10mA.
3. the intelligent controlling device of a kind of industrial fan according to claim 1, is characterized in that: the circuit connecting external power source is provided with master switch.
4. the intelligent controlling device of a kind of industrial fan according to claim 1, is characterized in that: described PID controller is arranged in PLC.
5. the intelligent controlling device of a kind of industrial fan according to any one of Claims 1-4, is characterized in that: also comprise the 3rd contactor, and PLC controls the closed of the 3rd contactor or disconnect to make frequency converter connect external power source or disconnect with external power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520286472.8U CN204557174U (en) | 2015-05-06 | 2015-05-06 | A kind of intelligent controlling device of industrial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520286472.8U CN204557174U (en) | 2015-05-06 | 2015-05-06 | A kind of intelligent controlling device of industrial fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204557174U true CN204557174U (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520286472.8U Active CN204557174U (en) | 2015-05-06 | 2015-05-06 | A kind of intelligent controlling device of industrial fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN204557174U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107870602A (en) * | 2017-12-22 | 2018-04-03 | 广西三威林产工业有限公司 | Panel turnover machine sheet material cooling controller |
| CN107882759A (en) * | 2016-09-29 | 2018-04-06 | 英业达科技有限公司 | Optimize the method and its system of radiator fan control parameter |
-
2015
- 2015-05-06 CN CN201520286472.8U patent/CN204557174U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882759A (en) * | 2016-09-29 | 2018-04-06 | 英业达科技有限公司 | Optimize the method and its system of radiator fan control parameter |
| CN107870602A (en) * | 2017-12-22 | 2018-04-03 | 广西三威林产工业有限公司 | Panel turnover machine sheet material cooling controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361000 No. 3, 1003 Tongji North Road, Tong'an District, Xiamen City, Fujian Province Patentee after: Xiamen Taike Group Co.,Ltd. Address before: 361000 No. 3, 1003 Tongji North Road, Tong'an District, Xiamen City, Fujian Province Patentee before: Xiamen Taike Industrial Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190827 Address after: Unit 1601, No. 1 Chengyi North Street, Phase III, Xiamen Software Park, Fujian Province Patentee after: XIAMEN ZHIHE INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: 361000 No. 3, 1003 Tongji North Road, Tong'an District, Xiamen City, Fujian Province Patentee before: Xiamen Taike Group Co.,Ltd. |
|
| TR01 | Transfer of patent right |