CN2769651Y - Control actuator for regulating valve - Google Patents
Control actuator for regulating valve Download PDFInfo
- Publication number
- CN2769651Y CN2769651Y CN 200520053894 CN200520053894U CN2769651Y CN 2769651 Y CN2769651 Y CN 2769651Y CN 200520053894 CN200520053894 CN 200520053894 CN 200520053894 U CN200520053894 U CN 200520053894U CN 2769651 Y CN2769651 Y CN 2769651Y
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- CN
- China
- Prior art keywords
- triode
- positive
- feedback potentiometer
- connects
- control
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- Expired - Fee Related
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- Control Of Direct Current Motors (AREA)
Abstract
The utility model discloses a controlling actuator for regulating valves, which comprises a feedback potentiometer, two same comparators and a drive circuit used for driving a motor to rotate in forward and reverse directions, wherein positive and negative phase input ends between the two comparators are connected across, wherein one pair of the cross-connected positive and negative phase input ends are connected with control voltage from 0 to 10V, and the other pair of the cross-connected positive and negative phase input ends are connected with the adjustable end of the feedback potentiometer. An adjusting rod of the feedback potentiometer is linked with an electric machine rotating shaft on an adjusting valve, and the output end of each comparator is connected with the drive circuit. The utility model can realize the stepless adjustment of valves from 0 to 90 DEG through the feedback potentiometer to make valves opened from any angles within a range from 0 to 90 DEG and to better perfect the opening function of valves, and in addition, the utility model can use voltage from 0 to 10V as input control voltage and accords with national standards, being convenient for connecting with output interface from 0 to 10V in common standard modules.
Description
Technical field
The utility model relates to a kind of control final controlling element that is applicable on Smoke prevention, fire prevention, the volume damper.
Background technique
China utility model patent ZL01235872.X discloses a kind of Smoke proofing and fire proofing valve, actuator in the Smoke proofing and fire proofing valve is used to control Smoke prevention, fire prevention, the open and close of volume damper, by automatic fire alarm center control commander, command center provides the voltage of opening or closing by control, by the unlatching of the driven by motor valve in the actuator or close, and control the rotation of motor by position limit switch, make valve opening or close and put in place, because position limit switch can only be by the setting of initial point and terminal point, so the switch angle of valve can only be 0 ° or 90 °.
The model utility content
The purpose of this utility model is to provide a kind of control final controlling element that can realize the step-less adjustment of valve between 0 °～90 °.
The purpose of this utility model can realize by following technical measures: comprise feedback potentiometer, two identical comparators and be used for the drive circuit of the forward and reverse rotation of drive motor, positive inverting input interconnection between two comparators, wherein the positive inverting input of pair of cross connection inserts the control voltage of 0～10V, another connects the adjustable end of described feedback potentiometer to cross-coupled positive inverting input, the adjustable lever of this feedback potentiometer and the machine shaft interlock on the modulating valve, the output terminal of each comparator connects drive circuit.
Described drive circuit comprises one tunnel positive direction actuation loop and one tunnel reverse direction actuation loop, each drives the loop and is formed by connecting by driving triode and control relay, the base stage that drives triode in the positive direction actuation loop connects the output terminal of one of them comparator, drive the grounded-emitter connection of triode, the collector electrode that drives triode connects the operating voltage positive pole through control relay, the normally opened contact of control relay is connected in just going back in the road of motor, the base stage that drives triode in the reverse direction actuation loop connects the wherein output terminal of another comparator, drive the grounded-emitter connection of triode, the collector electrode that drives triode connects the operating voltage positive pole through control relay, and the normally opened contact of control relay is connected in the counter-rotating loop of motor.
The adjustable lever of described feedback potentiometer is provided with gear, the gear engagement on the machine shaft in this gear and the final controlling element.
Set the opening angle that potentiometer is set valve by regulating, insert the control voltage of 0～10V, motor on the modulating valve rotates, feedback potentiometer changes resistance with driven by motor, input control voltage and feedback voltage are compared control two comparators and export further controlling and driving circuit, the clockwise and anticlockwise of motor and stopping, when input, when the feedback current potential equates, motor shuts down; When change input, the feedback current potential is unequal again, motor is entry into service again, feedback signal is followed the tracks of input signal changing again, reaches consistent and carries out.So by feedback potentiometer, realize the step-less adjustment of valve between 0 °～90 °, make it can arbitrarily angled unlatching in 0 °～90 ° scopes, improve the valve opening function better.In addition, can with 0～10V as input control voltage, meet NBS, convenient be connected with 0～10V output interface in some standard modules of using always.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the electrical schematic diagram of final controlling element shown in Figure 1.
Specific embodiment
As Fig. 1, shown in Figure 2, comprise feedback potentiometer RP, model is the identical comparator IC2 of two of HA17741, IC3, positive direction actuation loop and reverse direction actuation loop, positive inverting input interconnection between two comparators, wherein the positive inverting input B of pair of cross connection inserts the control voltage of 0～10V, another connects the adjustable end of feedback potentiometer RP to cross-coupled positive inverting input A, on the adjustable lever of feedback potentiometer KP gear is installed, gear engagement on this gear and the machine shaft, the adjustable lever of feedback potentiometer KP is regulated the feedback potentiometer resistance by driven by motor to reach like this.
The positive direction actuation loop is by driving triode Q1 and control relay KM
RBe formed by connecting, the base stage that drives triode Q1 connects the output terminal C of comparator IC2, drives the grounded-emitter connection of triode Q1, and the collector electrode that drives triode Q1 is through control relay KM
RConnect 24V operating voltage positive pole, the normally opened contact KM of control relay
R1, KM
R2Be connected in just going back in the road of motor.The reverse direction actuation loop is by driving triode Q2 and control relay KM
FBe formed by connecting, the base stage that drives triode Q2 connects the output terminal D of comparator IC3, drives the grounded-emitter connection of triode Q2, and the collector electrode that drives triode Q2 is through control relay KM
FConnect 24V operating voltage positive pole, the normally opened contact KM of control relay
F1, KM
F2Be connected in the counter-rotating loop of motor.
Provide input 0～10V voltage signal (B point voltage) by PLC, PID or other module, give the input of comparator IC2 negative terminal a voltage signal, give voltage signal of comparator IC3 anode simultaneously again, when potentiometer RP feedback voltage signal (A point voltage) when being higher than the B point voltage, the negative terminal voltage that is comparator IC3 is higher than anode, the D point is low potential output, drives not conducting of triode Q2, relay K M
FNot adhesive; The positive terminal voltage of comparator IC2 is higher than negative terminal, and the C point is high petential output, drives triode Q1 conducting, relay K M
RAdhesive, motor just changes, and rotates by gear driven potentiometer RP, and feedback signal voltage A point current potential descends, and when A point current potential was equal with B point current potential, comparator IC2 and comparator IC3 exported equal no-output, relay K M
RDischarge, motor shuts down; When input voltage signal (B point voltage) rising, then potentiometer RP feedback voltage signal (A point voltage) is when being lower than the B point voltage, and promptly the negative terminal voltage of comparator IC2 is higher than anode, and the C point is low potential output, drives not conducting of triode Q1, relay K M
RNot adhesive; The positive terminal voltage of comparator IC3 is higher than negative terminal, and the D point is high petential output, drives triode Q2 conducting, relay K M
FAdhesive, the motor counter-rotating is rotated by gear driven potentiometer RP, and feedback signal voltage A point current potential raises, when A point current potential is equal with B point current potential, comparator IC2 and the equal no-output of comparator IC3 output terminal, relay K M
FDischarge, motor shuts down.By said process, promptly input and feedback signal compare and control comparator IC2, IC3 output, further control relay KM
RAnd KM
FAdhesive, the clockwise and anticlockwise of motor and stopping, when input, when the feedback current potential equates, motor shuts down; When change input, the feedback current potential is unequal again, motor is entry into service again, feedback signal is followed the tracks of input signal changing again, reaches consistent and carries out.
Claims (3)
1, a kind of control final controlling element of modulating valve, the drive circuit that it is characterized in that comprising feedback potentiometer, two identical comparators and be used for the forward and reverse rotation of drive motor, positive inverting input interconnection between two comparators, wherein the positive inverting input of pair of cross connection inserts the control voltage of 0～10V, another connects the adjustable end of described feedback potentiometer to cross-coupled positive inverting input, the adjustable lever of this feedback potentiometer and the machine shaft interlock on the modulating valve, the output terminal of each comparator connects drive circuit.
2, the control final controlling element of modulating valve according to claim 1, it is characterized in that described drive circuit comprises one tunnel positive direction actuation loop and one tunnel reverse direction actuation loop, each drives the loop and is formed by connecting by driving triode and control relay, the base stage that drives triode in the positive direction actuation loop connects the output terminal of one of them comparator, drive the grounded-emitter connection of triode, the collector electrode that drives triode connects the operating voltage positive pole through control relay, the normally opened contact of control relay is connected in just going back in the road of motor, the base stage that drives triode in the reverse direction actuation loop connects the wherein output terminal of another comparator, drive the grounded-emitter connection of triode, the collector electrode that drives triode connects the operating voltage positive pole through control relay, and the normally opened contact of control relay is connected in the counter-rotating loop of motor.
3, the control final controlling element of modulating valve according to claim 1 is characterized in that the adjustable lever of described feedback potentiometer is provided with gear, the gear engagement on the machine shaft in this gear and the final controlling element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520053894 CN2769651Y (en) | 2005-01-21 | 2005-01-21 | Control actuator for regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520053894 CN2769651Y (en) | 2005-01-21 | 2005-01-21 | Control actuator for regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2769651Y true CN2769651Y (en) | 2006-04-05 |
Family
ID=36690734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520053894 Expired - Fee Related CN2769651Y (en) | 2005-01-21 | 2005-01-21 | Control actuator for regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2769651Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249791A (en) * | 2016-08-26 | 2016-12-21 | 成都众乐泰科技有限公司 | A kind of based on variable-resistance DC DC change-over circuit |
| CN107179722A (en) * | 2017-07-06 | 2017-09-19 | 江苏新扬机电设备有限公司 | A kind of third gear actuator control module for air conditioner |
| CN111271498A (en) * | 2020-02-29 | 2020-06-12 | 古志康 | Intelligent control device suitable for various water valves |
| CN114244243A (en) * | 2021-12-24 | 2022-03-25 | 中车大同电力机车有限公司 | Apparatus and method for isolating back emf in a circuit |
-
2005
- 2005-01-21 CN CN 200520053894 patent/CN2769651Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249791A (en) * | 2016-08-26 | 2016-12-21 | 成都众乐泰科技有限公司 | A kind of based on variable-resistance DC DC change-over circuit |
| CN107179722A (en) * | 2017-07-06 | 2017-09-19 | 江苏新扬机电设备有限公司 | A kind of third gear actuator control module for air conditioner |
| CN111271498A (en) * | 2020-02-29 | 2020-06-12 | 古志康 | Intelligent control device suitable for various water valves |
| CN111271498B (en) * | 2020-02-29 | 2022-01-07 | 浙江隆正自控阀门科技有限公司 | Intelligent control device suitable for various water valves |
| CN114244243A (en) * | 2021-12-24 | 2022-03-25 | 中车大同电力机车有限公司 | Apparatus and method for isolating back emf in a circuit |
| CN114244243B (en) * | 2021-12-24 | 2023-11-24 | 中车大同电力机车有限公司 | Apparatus and method for isolating counter potential in circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20110121 |