CN205383319U - Rotation type minute adjustment valve - Google Patents
Rotation type minute adjustment valve Download PDFInfo
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- CN205383319U CN205383319U CN201620137787.0U CN201620137787U CN205383319U CN 205383319 U CN205383319 U CN 205383319U CN 201620137787 U CN201620137787 U CN 201620137787U CN 205383319 U CN205383319 U CN 205383319U
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- output shaft
- controller
- motor
- displacement sensor
- control valve
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Abstract
The utility model discloses a rotation type minute adjustment valve, including the electrical control valve, the electrical control valve passes through lazytongs and the drive of drive output shaft by step motor, and wherein step motor is connected with the lazytongs, and the lazytongs is connected with the electrical control valve with drive output shaft, drive output shaft, is equipped with the angle displacement sensor who is used for detecting its angle information on the drive output shaft, and this angle displacement sensor be connected with the controller, and the controller is connected with step motor through drive module again, wherein, drive module is used for the just reversal and the speed of control stepper motor. The utility model discloses the control accuracy who adjusts reaches as high as 0.1% of full scale, is particularly suitable for the application scenario that is used for pressure or flow control accuracy to have relatively high expectations.
Description
Technical field
This utility model relates to a kind of rotary fine adjustment valve, belongs to adjustment valve technology field.
Background technology
Regulating valve and have another name called control valve, in industrial automation process control field, by accepting the control signal of regulation unit output, that removes the technological parameters such as change rate-of flow, pressure, temperature, liquid level by power operation finally controls element.Generally it is made up of actuator and valve.If pressing stroke feature, regulating valve and can be divided into Direct Travel and rectilinear path；By the power that its joined actuator uses, it is possible to be divided into pneumatic control valve, electric control valve, hydraulic adjusting valve three kinds.
When controlling gas or liquid line outlet pressure or flow at needs, need the outlet at pipeline that the electric control valve of one its aperture of continuously adjustable is installed, in the application scenario that Pressure control or flow control required precision is not high, the degree of regulation of common adjustment valve is the highest can reach the 1% of full scale (maximum opening), but in the application scenario that Pressure control or flow control required precision is higher, the degree of regulation regulating valve is required far above 1%, at least to reach the 0.1% of full scale (maximum opening), therefore, the common valve that regulates just is difficult to meet the application that this requirement is higher, the control accuracy making pressure or flow is not high, cannot realize pressure or flow are needed in the application of fine adjustment and control.Therefore, study a kind of high-precision fine adjustment valve and just seem important.
Utility model content
The technical problems to be solved in the utility model is: providing a kind of rotary fine adjustment valve, degree of regulation can reach more than the 0.1% of full scale (maximum opening), it is possible to overcomes the deficiencies in the prior art.
The technical solution of the utility model: a kind of rotary fine adjustment valve, including electric control valve, described electric control valve is passed through lazy-tongs by motor) and drive output shaft to drive, wherein motor is connected with lazy-tongs, lazy-tongs are connected with driving output shaft, output shaft is driven to be connected with electric control valve, driving, output shaft is provided with the angular displacement sensor for detecting its angle information, this angular displacement sensor is connected with controller, controller is connected with motor further through driving module, wherein, described driving module is for controlling rotating and the speed of motor.
The precision of described angular displacement sensor is more than 0.1 degree.
After instruction is communicated to controller by user, the driving output shaft current angular information that angular displacement sensor is detected by controller is compared with input angle instruction；If input angle is more than current angular, then controller instruction issuing is to the driving module of motor, controls motor and rotates forward, so that driving output shaft rotation to move and arrive input angle position；If input angle is less than current displacement, then controller instruction issuing is to the driving module of motor, controls motor reversion, so that driving output shaft rotation and arriving input angle position；If input angle is equal to current angular, then controller controls to drive module and motor to be failure to actuate；In driving output shaft rotation process, angle information is transferred to controller by angular displacement sensor in real time, it is achieved the closed loop control of valve opening.
After instruction is communicated to controller by user, controller calculates the outer corner difference driving output shaft current angular information and input angle that angular displacement sensor detects, if this outer corner difference is more than the half driving the output shaft total angle of rotation, then before instruction control motor assigned by controller, half corner velocity of rotation rotates more than the mode of later half corner velocity of rotation.
The described driving output shaft total angle of rotation is to drive output shaft that electric control valve is fully opened required corner stroke from being closed to.
The beneficial effects of the utility model are:
Control valve opening, by the corner information of the feedback of angular displacement sensor, is adjusted, it is achieved the closed loop control to valve opening by this utility model dynamically.The control accuracy that this utility model regulates can reach the 0.1% of full scale (maximum opening), fully meets the application scenario that Pressure control or flow control required precision is higher.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is control flow chart of the present utility model.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with attached Fig. 1 and 2, this utility model is described in further detail.
The rotary fine adjustment valve of this utility model, including clamshell 6, electric control valve, motor 4, lazy-tongs 2, angular displacement sensor 3, drive output shaft 5 and controller, wherein lazy-tongs 2 are this area routine techniques means, motor 4, angular displacement sensor 3 are commercially available prod, the precision of angular displacement sensor 3 is more than 0.1 degree, and controller adopts general PLC.
As shown in Figure 1, electric control valve by lazy-tongs 2 and is driven output shaft 5 to drive by motor 4, wherein motor 4 is connected with lazy-tongs 2, lazy-tongs 2 are connected with driving output shaft 5, output shaft 5 is driven to be connected with electric control valve, driving, output shaft 5 is provided with the angular displacement sensor 3 for detecting its angle information, this angular displacement sensor 3 is connected with controller, controller is connected with motor 4 further through driving module 1, wherein, described driving module 1 is for controlling rotating and the speed of motor 4, lazy-tongs 2 can make the motion of driving output shaft 5 and the synchronized movement of motor 4.
As in figure 2 it is shown, control mode of the present utility model is: after instruction is communicated to controller by user, the driving output shaft 5 current angular information that angular displacement sensor 3 is detected by controller is compared with input angle instruction；If input angle is more than current angular, then controller instruction issuing is to the driving module 1 of motor 4, controls motor 4 and rotates forward, so that driving output shaft 5 to rotate and arrive input angle place；If input angle is less than current angular, then controller instruction issuing is to the driving module 1 of motor 4, controls motor 4 and reverses, so that driving output shaft 5 to rotate and arrive input angle position；If input angle is equal to current angular, then controller controls to drive module 1 and motor 4 to be failure to actuate；In driving output shaft 5 rotation process, angle information is transferred to controller by angular displacement sensor 3 in real time, realize the closed loop control of valve opening, namely in driving output shaft 5 rotation process, if crossed instruction angle position place, then controller controls again to drive output shaft 5 toward back rotation, until eventually settling at instruction angle position place.
Further, in aforementioned control, after instruction is communicated to controller by user, controller calculates the outer corner difference driving output shaft 5 current angular information and input angle that angular displacement sensor 3 detects, if this outer corner difference is more than the half driving output shaft 5 total angle of rotation, before then instruction control motor 4 assigned by controller, half corner velocity of rotation rotates more than the mode of later half corner velocity of rotation, when this distance is less than the half of driving output shaft 5 total angle of rotation, then controller assigns instruction control motor 4 with the rotation of relatively low velocity, this kind of mode can reduce the regulating time and round number of times that regulate valve arrival appointment aperture.
Aforementioned driving output shaft 5 total angle of rotation is to drive output shaft 5 that electric control valve is fully opened required corner stroke from being closed to.
Claims (2)
1. a rotary fine adjustment valve, including electric control valve, it is characterized in that: described electric control valve by lazy-tongs (2) and is driven output shaft (5) to drive by motor (4), wherein motor (4) is connected with lazy-tongs (2), lazy-tongs (2) are connected with driving output shaft (5), output shaft (5) is driven to be connected with electric control valve, driving, output shaft (5) is provided with the angular displacement sensor (3) for detecting its angle information, this angular displacement sensor (3) is connected with controller, controller is connected with motor (4) further through driving module (1), wherein, described driving module (1) is used for controlling rotating and the speed of motor (4).
2. rotary fine adjustment valve according to claim 1, it is characterised in that: the precision of described angular displacement sensor (3) is more than 0.1 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620137787.0U CN205383319U (en) | 2016-02-24 | 2016-02-24 | Rotation type minute adjustment valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620137787.0U CN205383319U (en) | 2016-02-24 | 2016-02-24 | Rotation type minute adjustment valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205383319U true CN205383319U (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620137787.0U Active CN205383319U (en) | 2016-02-24 | 2016-02-24 | Rotation type minute adjustment valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205383319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508696A (en) * | 2016-02-24 | 2016-04-20 | 贵州安吉华元科技发展有限公司 | Rotary precision regulating valve and method for controlling same |
-
2016
- 2016-02-24 CN CN201620137787.0U patent/CN205383319U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508696A (en) * | 2016-02-24 | 2016-04-20 | 贵州安吉华元科技发展有限公司 | Rotary precision regulating valve and method for controlling same |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |