CN103672105B - A kind of electric actuator - Google Patents
A kind of electric actuator Download PDFInfo
- Publication number
- CN103672105B CN103672105B CN201310717628.9A CN201310717628A CN103672105B CN 103672105 B CN103672105 B CN 103672105B CN 201310717628 A CN201310717628 A CN 201310717628A CN 103672105 B CN103672105 B CN 103672105B
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- Prior art keywords
- electric actuator
- control
- signal
- motor
- circuit
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
This application discloses a kind of electric actuator, control command is received by input receiving circuit, and export control signal according to control command to processor, processor carries out clockwise and anticlockwise control and direct torque according to the motor of control signal to the aperture of the valve for controlling pipe network, and exports corresponding valve position feedback signal to control room.Namely electric actuator disclosed in the present application can control according to the valve of control command to pipe network.
Description
Technical field
The application relates to automatic control technology field, more particularly, relates to a kind of electric actuator.
Background technique
In present industrial production, for realizing the automatic control to production process, need multiple automatic controlling instrument instruments and meters.In order to realize the Automated condtrol to pipe network, must control to the valve of pipe network according to control command.
Summary of the invention
In view of this, the application provides a kind of electric actuator, automatically controls valve for the control command according to control room.
To achieve these goals, the existing scheme proposed is as follows:
A kind of electric actuator, comprising:
Input receiving circuit, for receiving control command and exporting control signal according to described control command;
Processor, for according to described control signal Driving Torque control signal and turn signal, and according to actual motion State-output corresponding valve position feedback signal and various fault, alarm signal;
Direct torque circuit, for according to described torque control signal output voltage control signal;
Steering controling circuit, for exporting steering controling signal according to described turn signal;
ON-OFF control circuit, is switched on or switched off signal accordingly for exporting according to described state of a control;
Motor, the aperture for the valve to pipe network controls to provide power source;
Three-phase bidirectional triode thyristor, for controlling driving the three-phase alternating voltage of described motor according to described torque control signal;
Steering controller, for controlling according to the phase sequence of described steering controling signal to described threephase AC;
On-off controller, for according to described on-off control signal, switches on or off the power supply to described motor;
Position transducer, is arranged on described motor, for exporting described feedback signal according to the rotary state of described motor.
Preferably, described output control circuit comprises magnetic latching relay circuit.
Preferably, described magnetic latching relay circuit comprises internal cell.
Preferably, described motor is asynchronous motor.
Preferably, described steering controller comprises throw over relay.
Preferably, described position transducer is Hall type absolute encoder.
Preferably, also comprise:
Display unit, is connected with described processor, for showing valve state information.
Preferably, described display unit comprises OLED display.
Preferably, also comprise:
PORT COM, control command and superior control unit for receiving higher level's control unit export the status information of described valve.
Preferably, described PORT COM is COM or infrared wireless communication port.
As can be seen from technique scheme, the electric actuator that the application provides receives control command by input receiving circuit, and exporting control signal according to control command to processor, processor carries out clockwise and anticlockwise control and direct torque according to the motor of control signal to the aperture of the valve for controlling pipe network.Namely electric actuator disclosed in the present application can control according to the valve of control command to pipe network.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural drawing of Fig. 1 a kind of electric actuator disclosed in the embodiment of the present application;
The structural drawing of Fig. 2 a kind of electric actuator disclosed in another embodiment of the application;
The structural drawing of Fig. 3 a kind of electric actuator disclosed in the another embodiment of the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technological scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
Embodiment one
The structural drawing of Fig. 1 a kind of electric actuator disclosed in the embodiment of the present application.
As shown in Figure 1, electric actuator disclosed in the present embodiment comprises input receiving circuit 10, processor 20, direct torque circuit 30, steering controling circuit 40, switching circuit 50, motor 60, three-phase bidirectional triode thyristor 31, steering controller 41 on-off controller 51 and position transducer 70.Wherein: processor 20 is connected with input receiving circuit 10, direct torque circuit 30, steering controling circuit 40, ON-OFF control circuit 50, position transducer 70 respectively, direct torque circuit 30 is also connected with three-phase bidirectional triode thyristor 31, steering controling circuit 40 is also connected with steering controling circuit 41, ON-OFF control circuit 50 is also connected with on-off controller 51, and position transducer 70 is also connected with motor 60.
Input receiving circuit 10 for receiving control command, and exports control signal according to control command.Control command comes from the automatic output of control room or other control units.
Processor 20 is for according to control signal Driving Torque control signal and steering controling signal, also receive the feedback signal of motor simultaneously, and the motor operating state that the motor operating state reflected feedback signal and control signal comprise contrasts, if inconsistent both finding, explanation is broken down, and at this moment exports trouble signal.Processor 20, also according to the running state of current actuator, exports corresponding valve position feedback signal and various alarm signals etc.
Direct torque circuit 30 is for according to torque control signal output voltage control signal.
Three-phase bidirectional triode thyristor 31 is arranged in the power supply line of motor 60, for controlling according to the voltage of voltage control signal to the threephase AC of drive motor.It is generally the size controlling three-phase alternating voltage by controlling the silicon controlled angle of flow, thus reach the object controlling current of electric size, realize starting the flexibility of motor 60, stopping, Torque Control etc., to machinery and electric impact when can reduce to start, control accuracy can be improved further.
Steering controling circuit 40, for exporting steering controling signal according to turn signal, turns to and comprises forward or reverse, like this can the opening or closing of control valve.
Steering controller 41 is arranged in the power supply line of motor 60, first receives the threephase AC that three-phase bidirectional triode thyristor 31 exports, then controls according to the phase sequence of steering controling signal to threephase AC, export the threephase AC of different phase sequence.
ON-OFF control circuit 50 is switched on or switched off signal accordingly for exporting according to state of a control.
On-off controller 51 is according to being switched on or switched off signal accordingly, switch on or off the power supply to motor 60, trouble signal imply that three-phase bidirectional triode thyristor 31 breaks down, as puncturing appears in two-phase or three-phase, such motor 60 can be out of hand, may stall or always one direction rotate, if not in addition process can there is serious production accident.
Motor 60 provides power source for whole actuator, and for controlling valve, the pto＝power take-off of motor is connected with the rotating shaft of valve by gearbox, when motor forward or reverse, and can the opening or closing of control valve.
Position transducer 70 is arranged on motor 60, for the rotary state output feedback signal according to motor 60.
As can be seen from technique scheme, electric actuator disclosed in the present embodiment receives control command by input receiving circuit, and exporting control signal according to control command to processor, processor carries out clockwise and anticlockwise control and direct torque according to the motor of control signal to the aperture of the valve for controlling pipe network.Namely electric actuator disclosed in the present application can control according to the valve of control command to pipe network.
In embodiment disclosed in the present application, the magnetic latching relay in output control circuit 80, by internal battery powers after disconnected dispatch from foreign news agency, during manually-operable, under software control, can correctly export all switching values.Stroke can be arranged arbitrarily, substantially not by the restriction of rotating the number of turns, and without the need to debugging of uncapping, convenient and practical.And mechanical type sensitive switch can only export some limit switch amounts, and some other switching value cannot correctly export.And when arranging stroke section, after need uncapping, mechanical type sensitive switch is adjusted, correct limit switch amount could be exported, and the adjustment angle of mechanical type sensitive switch is limited within the specific limits, the rotation number of turns that result in final controlling element is also restricted, and brings great inconvenience to installment and debugging.
Motor 60 in the present embodiment is ac three-phase asynchronous motor.
Direction selecting controller 41 is throw over relay preferably, needs 4 bidirectional triode thyristors to coordinate the switch operation that just can complete before throw over relay can complete.Input end receives threephase AC, can export the threephase AC of different phase sequence on the output, controlling turning to of threephase asynchronous machine with this by controlling its action.
Position transducer 70 is Hall type absolute encoder, and it adopts Hall technology, and can record nearly 16384 circles, the resolution of individual pen is 1/4096, SPI interfacing.Compared with the position transducer of existing product, the position transducer position sampling precision of innovative design is high, antijamming capability is strong, this is unrestricted, easy to use for turning collar base, also can normal recordings valve position without the need to powered battery.
When motor 60 starts, for reducing to impact, processor 10 controls the angle of flow of three-phase controllable silicon 31 by direct torque circuit 30, the input voltage of motor 60 is made at the uniform velocity to be increased to voltage rating by 0, thus make the rotating speed of motor 60 at the uniform velocity be increased to rated speed by 0, to machinery and electric impact when reducing startup, extend the working life of final controlling element and valve.When 60 commutation of needs motor, processor 10 first controls three-phase bidirectional triode thyristor 31 and on-off controller 51 disconnects, and then controls throw over relay commutation, finally controls on-off controller 61 conducting.In this fashion, three-phase bidirectional triode thyristor 31 only makes switching device, is not used in commutation, improves safety and the reliability of three-phase bidirectional triode thyristor 31 work.When can prevent commutation, throw over relay produces arcing simultaneously, and the reliability of whole electric actuator and Security are greatly improved.
When there is extreme fault condition, motor 60 is out of control, at this moment can stall or unidirectional operation always.After processor 20 obtains turning to of motor 60 by position transducer 70, control motor 60 to run to given position, as all uncontrollable motor runs to given location in any case, now control three-phase bidirectional triode thyristor 31 turns off by processor 20, as processor 20 detects motor still in operation by position transducer 70, then judge that three-phase bidirectional triode thyristor 31 is breakdown, at this moment on-off controller 51 disconnects, the power supply of timely cut-out motor 60, stops motor 60 to run.Thus under this extreme fault condition, ensure the safety of final controlling element and valve, avoid the generation of factory safety accident.
Embodiment two
The structural drawing of Fig. 2 a kind of electric actuator disclosed in another embodiment of the application.
As shown in Figure 2, electric actuator disclosed in the present embodiment has set up display unit 90 on the basis of a upper embodiment, and display unit 90 is connected with processor 20.
Display unit 90 is OLED display preferably, for showing the status information of valve.
OLED belongs to selfluminous element, and brightness is high, it is clear to show, displaying contents is abundant, visual angle is large, long service life, there is not the phenomenon that display after the backlight decay such as LCD is unclear.
Embodiment three
The structural drawing of Fig. 3 a kind of electric actuator disclosed in the another embodiment of the application.
As shown in Figure 3, electric actuator disclosed in the present embodiment has set up PORT COM 100 on the basis of a upper embodiment, and PORT COM 100 is connected with processor 20.
PORT COM 100 is for the status information of the control command and superior control unit output valve that receive higher level's control unit.PORT COM 100 can be COM, can also be infrared wireless communication port, utilizes wireless signal to realize the transmission of information.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or control panel, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising key element and also there is other identical element.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the application.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an electric actuator, is characterized in that, comprising:
Input receiving circuit, for receiving control command and exporting control signal according to described control command;
Processor, for according to described control signal Driving Torque control signal and turn signal, and according to the corresponding valve position feedback signal of actual motion State-output and fault, alarm signal;
Direct torque circuit, for according to described torque control signal output voltage control signal;
Steering controling circuit, for exporting steering controling signal according to described turn signal;
ON-OFF control circuit, is switched on or switched off signal for exporting according to state of a control;
Motor, the aperture for the valve to pipe network controls to provide power source;
Three-phase bidirectional triode thyristor, for controlling according to the voltage of described torque control signal to the threephase AC driving described motor;
Steering controller, for controlling according to the phase sequence of described steering controling signal to described threephase AC;
On-off controller, is switched on or switched off signal for described in basis, switches on or off the power supply to described motor;
Position transducer, is arranged on described motor, for exporting described valve position feedback signal according to the rotary state of described motor.
2. electric actuator as claimed in claim 1, it is characterized in that, also comprise: output control circuit, described output control circuit comprises magnetic latching relay circuit.
3. electric actuator as claimed in claim 2, it is characterized in that, described magnetic latching relay circuit comprises internal cell.
4. electric actuator as claimed in claim 1, it is characterized in that, described motor is asynchronous motor.
5. electric actuator as claimed in claim 1, it is characterized in that, described steering controller comprises throw over relay.
6. electric actuator as claimed in claim 1, it is characterized in that, described position transducer is Hall type absolute encoder.
7. the electric actuator as described in any one of claim 1 ~ 6, is characterized in that, also comprises:
Display unit, is connected with described processor, for showing valve state information.
8. electric actuator as claimed in claim 7, it is characterized in that, described display unit comprises OLED display.
9. electric actuator as claimed in claim 7, is characterized in that, also comprise:
PORT COM, control command and superior control unit for receiving higher level's control unit export the status information of described valve.
10. electric actuator as claimed in claim 9, it is characterized in that, described PORT COM is COM or infrared wireless communication port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717628.9A CN103672105B (en) | 2013-12-23 | 2013-12-23 | A kind of electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717628.9A CN103672105B (en) | 2013-12-23 | 2013-12-23 | A kind of electric actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103672105A CN103672105A (en) | 2014-03-26 |
| CN103672105B true CN103672105B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310717628.9A Active CN103672105B (en) | 2013-12-23 | 2013-12-23 | A kind of electric actuator |
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| CN (1) | CN103672105B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061356A (en) * | 2014-06-30 | 2014-09-24 | 江苏赛达电子科技有限公司 | Wirelessly and remotely controlled valve |
| CN112684746A (en) * | 2020-12-31 | 2021-04-20 | 金卡智能集团股份有限公司 | Gas meter valve control method, system and computer readable storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000009922A1 (en) * | 1998-08-12 | 2000-02-24 | Erie Manufacturing Company | Electronic controller for a modulating valve |
| CN101539191A (en) * | 2009-04-03 | 2009-09-23 | 莱芜钢铁集团电子有限公司 | Method and device for displaying and controlling opening of electric butterfly valve |
| CN202171052U (en) * | 2011-08-18 | 2012-03-21 | 朱庆田 | Intelligent controller for valve electric actuator |
| CN203036076U (en) * | 2012-11-29 | 2013-07-03 | 华北电力大学 | Detection device of valve motor-driven executing mechanism |
| CN203099030U (en) * | 2013-01-29 | 2013-07-31 | 株洲振邦科技实业有限公司 | Intelligent frequency conversion electric actuating mechanism |
| CN203131180U (en) * | 2012-12-31 | 2013-08-14 | 重庆川仪自动化股份有限公司 | Control system for electric actuating mechanism of valve |
| CN203730888U (en) * | 2013-12-23 | 2014-07-23 | 重庆川仪自动化股份有限公司 | Electric actuating mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7518324B2 (en) * | 2006-01-06 | 2009-04-14 | Stmicroelectronics, Inc. | Universal motor speed controller |
-
2013
- 2013-12-23 CN CN201310717628.9A patent/CN103672105B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000009922A1 (en) * | 1998-08-12 | 2000-02-24 | Erie Manufacturing Company | Electronic controller for a modulating valve |
| CN101539191A (en) * | 2009-04-03 | 2009-09-23 | 莱芜钢铁集团电子有限公司 | Method and device for displaying and controlling opening of electric butterfly valve |
| CN202171052U (en) * | 2011-08-18 | 2012-03-21 | 朱庆田 | Intelligent controller for valve electric actuator |
| CN203036076U (en) * | 2012-11-29 | 2013-07-03 | 华北电力大学 | Detection device of valve motor-driven executing mechanism |
| CN203131180U (en) * | 2012-12-31 | 2013-08-14 | 重庆川仪自动化股份有限公司 | Control system for electric actuating mechanism of valve |
| CN203099030U (en) * | 2013-01-29 | 2013-07-31 | 株洲振邦科技实业有限公司 | Intelligent frequency conversion electric actuating mechanism |
| CN203730888U (en) * | 2013-12-23 | 2014-07-23 | 重庆川仪自动化股份有限公司 | Electric actuating mechanism |
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| CN103672105A (en) | 2014-03-26 |
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Inventor after: Luo Yong Inventor after: You Jun Inventor after: Li Jie Inventor after: Wu Changhan Inventor after: Yang Zunping Inventor after: Feng Ling Inventor after: Zhao Shikang Inventor before: Luo Yong Inventor before: You Jun Inventor before: Yang Zunping Inventor before: Feng Ling Inventor before: Zhao Shikang |
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Free format text: CORRECT: INVENTOR; FROM: LUO YONG YOU JUN YANG ZUNPING FENG LING ZHAO SHIKANG TO: LUO YONG YOU JUN LI KAI WU CHANGHAN YANG ZUNPING FENG LING ZHAO SHIKANG |
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