CN204679822U - A kind of Anti-explosion electrical control system - Google Patents
A kind of Anti-explosion electrical control system Download PDFInfo
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- CN204679822U CN204679822U CN201520385548.2U CN201520385548U CN204679822U CN 204679822 U CN204679822 U CN 204679822U CN 201520385548 U CN201520385548 U CN 201520385548U CN 204679822 U CN204679822 U CN 204679822U
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Abstract
The utility model discloses a kind of safe and reliable and significantly can improve the Anti-explosion electrical control system of anti-interference intensity, comprise: the output control of engine power circuit be connected with the power input of explosion-proof electrification by power cable, described Anti-explosion electrical control system also includes the on-the-spot control circuit be connected with the control signal input end of output control of engine power circuit, and this on-the-spot control circuit is connected with the control signal input end of described output control of engine power circuit with the photoelectric switching circuit being arranged on optical fiber two ends for a pair by optical fiber.This Anti-explosion electrical control system substantially increases anti-interference intensity, save a large amount of secondary lines, not only make wiring more simple, and, make whole control system more safe and reliable, can be widely used in the control to explosion-proof electrification in the industry such as chemical industry, restriction.
Description
Technical field
The utility model relates to a kind of electric control system, refers more particularly to a kind of Anti-explosion electrical control system being applied to hazardous applications.
Background technology
At present, many chemical enterprises all have employed the electrical equipment (mainly motor and blower fan) of explosion-proof secondary instrument case to production scene and control, that is: secondary instrument case is provided with the button for controlling motor start and stop, be respectively used to regulate the rotating speed of motor and set the potentiometer of electric machine frequency and such as displays temperature, pressure, humidity, the various secondary instruments of liquid level and flow, these buttons, potentiometer and need a large amount of secondary lines to be connected between secondary instrument with the output control of engine power circuit be arranged in master control cabinet, strong in a large amount of secondary lines, the mixing of light current cable is in wire casing, interference can be formed each other, have influence on the correct display of secondary instrument, thus have influence on normally carrying out of Chemical Manufacture further, and this secondary line exists potential safety hazard, that is: when aging circuit or when occurring that mouse suffers from, easily cause short circuit, so accidents caused.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of safe and reliable and significantly can improve the Anti-explosion electrical control system of anti-interference intensity.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of Anti-explosion electrical control system, comprise: the output control of engine power circuit be connected with the power input of explosion-proof electrification by power cable, described Anti-explosion electrical control system also includes the on-the-spot control circuit be connected with the control signal input end of output control of engine power circuit, and this on-the-spot control circuit is connected with the control signal input end of described output control of engine power circuit with the photoelectric switching circuit being arranged on optical fiber two ends for a pair by optical fiber.
As a kind of preferred version, in described a kind of Anti-explosion electrical control system, described on-the-spot control circuit comprises: the central processing unit of built-in communication interface, storer, by LCDs be arranged on the touch display screen that the touch pad in LCDs is formed, the display driver circuit driving LCDs, the input/output terminal of storer, the output terminal of touch pad are all connected with central processing unit with the input end of display driver circuit, and the output terminal of display driver circuit is connected with the input end of LCDs; The built-in communication interface of central processing unit is connected with the corresponding port of corresponding light power conversion circuit.
As a kind of preferred version, in described a kind of Anti-explosion electrical control system, described output control of engine power circuit comprises: programmable logic controller (PLC) and the contactor corresponding with described explosion-proof electrification and/or frequency converter, the input end of contactor and/or frequency converter is connected with the corresponding output end of programmable logic controller (PLC), and the respective input of programmable logic controller (PLC) is connected with the corresponding port of corresponding light power conversion circuit as the control signal input end of described output control of engine power circuit.
As a kind of preferred version, described Anti-explosion electrical control system also includes pressure transducer, and the output terminal of pressure transducer is connected with the central processing unit of described on-the-spot control circuit.
As a kind of preferred version, described Anti-explosion electrical control system also includes temperature sensor, and the output terminal of temperature sensor is connected with the central processing unit of described on-the-spot control circuit
As a kind of preferred version, described Anti-explosion electrical control system also includes humidity sensor, and the output terminal of humidity sensor is connected with the central processing unit of described on-the-spot control circuit.
As a kind of preferred version, described Anti-explosion electrical control system also includes liquid level sensor, and the output terminal of liquid level sensor is connected with the central processing unit of described on-the-spot control circuit
As a kind of preferred version, described Anti-explosion electrical control system also includes flow sensor, and the output terminal of flow sensor is connected with the central processing unit of described on-the-spot control circuit.
The beneficial effects of the utility model are: the utility model adopts optical fiber to data or orders such as the speed governing of the start and stop and motor of transmitting blower fan and motor, temperature, humidity, flow, liquid level and pressure, substantially increase anti-interference intensity, save a large amount of secondary lines, not only make wiring simpler, and, make whole control system more safe and reliable.In addition, owing to have employed touch-screen, make operation become convenient, operation interface is also more friendly, and the display of the various data such as temperature, speed, pressure is also more clear and intuitive, very clear.
Accompanying drawing explanation
Fig. 1 is the electric theory structure schematic diagram of Anti-explosion electrical control system described in the utility model.
Reference numeral in Fig. 1 is: 1, output control of engine power circuit, 11, programmable logic controller (PLC), 12, frequency converter, 13, contactor, 2, the first photoelectric switching circuit, 3, optical fiber, the 4, second photoelectric switching circuit, 5, on-the-spot control circuit, 51, central processing unit, 52, display driver circuit, 53, storer, 54, touch pad, 55, LCDs, 6, power cable, 7, fire proof motor, 8, explosion-proof fan, 91, temperature sensor, 92, humidity sensor, 93, pressure transducer, 94, flow sensor, 95, liquid level sensor.
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiments of a kind of Anti-explosion electrical control system described in the utility model in detail.
As shown in Figure 1, a kind of Anti-explosion electrical control system described in the utility model, comprise: the output control of engine power circuit 1 be connected with the power input of explosion-proof fan 8 by power cable 6 and the fire proof motor 7 as explosion-proof electrification and the on-the-spot control circuit 5 be connected with the control signal input end of output control of engine power circuit 1, this on-the-spot control circuit 5 is connected with the control signal input end of the second photoelectric switching circuit 4 with described output control of engine power circuit 1 by optical fiber 3 and the first photoelectric switching circuit 2 of being separately positioned on optical fiber 3 two ends, described on-the-spot control circuit 5 comprises: the central processing unit 51 of built-in communication interface, storer 53, by LCDs 55 be arranged on the touch display screen that the touch pad 54 in LCDs 55 is formed, the display driver circuit 52 driving LCDs 55, input/output terminal (I/O), the output terminal of touch pad 54 of storer 53 are all connected with central processing unit 51 with the input end of display driver circuit 52, and the output terminal of display driver circuit 52 is connected with the input end of LCDs 55, the built-in communication interface of central processing unit 51 is connected with the corresponding port of the second photoelectric switching circuit 4, described output control of engine power circuit 1 comprises: programmable logic controller (PLC) 11 (Programmable Logic Controller is called for short PLC), and the contactor 13 corresponding with described explosion-proof fan 8 is (according to the supply voltage of explosion-proof fan 8, select suitable contactor) and the frequency converter 12 corresponding with fire proof motor 7 (according to the supply voltage of fire proof motor 7, select suitable frequency converter), contactor 13 is connected with the corresponding output end of programmable logic controller (PLC) 11 with the input end of frequency converter 12, the respective input of programmable logic controller (PLC) 11 is connected with the corresponding port of the first photoelectric switching circuit 2 as the control signal input end of described output control of engine power circuit 1, in the present embodiment, described Anti-explosion electrical control system also comprises: temperature sensor 91, humidity sensor 92, pressure transducer 93, flow sensor 94 and liquid level sensor 95, and temperature sensor 91, humidity sensor 92, pressure transducer 93, flow sensor 94 are connected with the central processing unit 51 of described on-the-spot control circuit 5 with the output terminal of liquid level sensor 95.
In actual application, described on-the-spot control circuit 5 can select ready-made touch control screen, also the second photoelectric switching circuit 4 can be built in ready-made touch control screen, form the touch control screen of band optical fiber interface, so just make the structure of whole control system compacter, also greatly reduce the cost of this control system simultaneously.
During actual use, can the data from temperature sensor 91, humidity sensor 92, pressure transducer 93, flow sensor 94 and liquid level sensor 95 be received by touch control screen and show intuitively, the parameters such as the rotating speed of enabling signal and the fire proof motor set 7 can also be sent to the programmable logic controller (PLC) 11 of output control of engine power circuit 1 by optical fiber 3, be controlled the operation of fire proof motor 7 and explosion-proof fan 8 by programmable logic controller (PLC) 11.
In sum, be only preferred embodiment of the present utility model, not be used for limit the utility model implement scope, all equalizations done according to shape, structure, feature and the spirit described in the utility model right change and modify, and all should be included in right of the present utility model.
Claims (8)
1. an Anti-explosion electrical control system, comprise: the output control of engine power circuit be connected with the power input of explosion-proof electrification by power cable, it is characterized in that: described Anti-explosion electrical control system also includes the on-the-spot control circuit be connected with the control signal input end of output control of engine power circuit, this on-the-spot control circuit is connected with the control signal input end of described output control of engine power circuit with the photoelectric switching circuit being arranged on optical fiber two ends for a pair by optical fiber.
2. Anti-explosion electrical control system according to claim 1, it is characterized in that: described on-the-spot control circuit comprises: the central processing unit of built-in communication interface, storer, by LCDs be arranged on the touch display screen that the touch pad in LCDs is formed, the display driver circuit driving LCDs, the input/output terminal of storer, the output terminal of touch pad are all connected with central processing unit with the input end of display driver circuit, and the output terminal of display driver circuit is connected with the input end of LCDs; The built-in communication interface of central processing unit is connected with the corresponding port of corresponding light power conversion circuit.
3. Anti-explosion electrical control system according to claim 1, it is characterized in that: described output control of engine power circuit includes: programmable logic controller (PLC) and the contactor corresponding with described explosion-proof electrification and/or frequency converter, the input end of contactor and/or frequency converter is connected with the corresponding output end of programmable logic controller (PLC), and the respective input of programmable logic controller (PLC) is connected with the corresponding port of corresponding light power conversion circuit as the control signal input end of described output control of engine power circuit.
4. the Anti-explosion electrical control system according to claim 1,2 or 3, is characterized in that: described Anti-explosion electrical control system also includes pressure transducer, and the output terminal of pressure transducer is connected with the central processing unit of described on-the-spot control circuit.
5. the Anti-explosion electrical control system according to claim 1,2 or 3, is characterized in that: described Anti-explosion electrical control system also includes temperature sensor, and the output terminal of temperature sensor is connected with the central processing unit of described on-the-spot control circuit.
6. the Anti-explosion electrical control system according to claim 1,2 or 3, is characterized in that: described Anti-explosion electrical control system also includes humidity sensor, and the output terminal of humidity sensor is connected with the central processing unit of described on-the-spot control circuit.
7. the Anti-explosion electrical control system according to claim 1,2 or 3, is characterized in that: described Anti-explosion electrical control system also includes liquid level sensor, and the output terminal of liquid level sensor is connected with the central processing unit of described on-the-spot control circuit.
8. the Anti-explosion electrical control system according to claim 1,2 or 3, is characterized in that: described Anti-explosion electrical control system also includes flow sensor, and the output terminal of flow sensor is connected with the central processing unit of described on-the-spot control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520385548.2U CN204679822U (en) | 2015-06-08 | 2015-06-08 | A kind of Anti-explosion electrical control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520385548.2U CN204679822U (en) | 2015-06-08 | 2015-06-08 | A kind of Anti-explosion electrical control system |
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| CN204679822U true CN204679822U (en) | 2015-09-30 |
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| CN201520385548.2U Active CN204679822U (en) | 2015-06-08 | 2015-06-08 | A kind of Anti-explosion electrical control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200547A (en) * | 2016-09-12 | 2016-12-07 | 广州市心德实业有限公司 | A kind of MVR technique antidisturbance control system |
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2015
- 2015-06-08 CN CN201520385548.2U patent/CN204679822U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200547A (en) * | 2016-09-12 | 2016-12-07 | 广州市心德实业有限公司 | A kind of MVR technique antidisturbance control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220718 Address after: 215616 No.8, Luyuan Jinqiao West Road, Tangqiao town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Zhangjiagang Beisha Jinshuang Refrigeration Technology Co.,Ltd. Address before: 215611 Jiangsu Suzhou Zhangjiagang Tangqiao Luyuan Economic Development Zone (Jinqiao West Road) jinteng Chemical Machinery Manufacturing Co.,Ltd. Patentee before: ZHANGJIAGANG JINTENG CHEMICAL MACHINERY MANUFACTURE Co.,Ltd. |
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| TR01 | Transfer of patent right |