CN205424074U - A LVDT feedback device for angle stroke butterfly valve - Google Patents
A LVDT feedback device for angle stroke butterfly valve Download PDFInfo
- Publication number
- CN205424074U CN205424074U CN201620179274.6U CN201620179274U CN205424074U CN 205424074 U CN205424074 U CN 205424074U CN 201620179274 U CN201620179274 U CN 201620179274U CN 205424074 U CN205424074 U CN 205424074U
- Authority
- CN
- China
- Prior art keywords
- lvdt
- valve
- reaction plate
- valve body
- butterfly valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a LVDT feedback device for angle stroke butterfly valve, including valve body, valve reaction plate and LVDT device, the lateral wall of valve body one side on install the valve reaction plate, rotatable mount has been arranged to this valve reaction plate top, the lateral wall of rotatable mount middle part and valve body rotate and be connected, two LVDT mounts have been arranged at the upper and lower both ends of lateral wall on one side of this rotatable mount, install the LVDT device between two LVDT mounts, the pull rod that stretches out of LVDT device lower extreme pass through the connecting piece and rotate with the valve reaction plate and is connected, this LVDT device upper end is continuous with the valve body. The utility model discloses having broken through current feedback device's drawback, having solved under the abominable condition of installation environment, the unstable problem of large -scale liquid accuse butterfly valve feedback when the scrap build, need not change the body of valve, just can reach stable analog quantity feedback through this device of installation, realizes finally that the full -scale range of butterfly valve valve position feeds back.
Description
Technical field
This utility model relates to the feedback device technical field of butterfly valve, particularly relates to a kind of LVDT feedback device for angle stroke butterfly valve.
Background technology
The valve position feedback of butterfly valve typically uses two ways: 1, switching value is fed back, and i.e. switchs with contact or inductive position and realizes；2, analog quantity feedback, i.e. realizes with rotary resistor.Although both the above mode simple in construction, but its shortcoming that there is " being restricted by installation environment ", i.e. in the environment of moist, corrosivity is strong, its poor reliability, equipment deterioration substantially, therefore still lack a kind of valve position feedback device reliably currently for the angle stroke butterfly valve under above-mentioned installation environment.To this end, devise a kind of LVDT feedback device for angle stroke butterfly valve to solve the problems referred to above.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of LVDT feedback device for angle stroke butterfly valve, breach the drawback of existing feedback device, solve in the case of installation environment is severe, the problem that large-scale hydraulic butterfly valve feedback is unstable, when scrap build, need not change the body of valve, by installing the analog quantity feedback that this device just can reach stable, finally realize the gamut feedback of butterfly valve valve position.
This utility model solves its technical problem and be the technical scheme is that a kind of LVDT feedback device for angle stroke butterfly valve of offer, including valve body, valve reaction plate and LVDT device, on the sidewall of described valve body side, valve reaction plate is installed, this valve reaction plate is arranged above rotatable fixed mount, in the middle part of described rotatable fixed mount, the sidewall with valve body is rotationally connected, the upper and lower two ends of sidewall of this rotatable fixed mount side are disposed with two LVDT fixed mounts, between two LVDT fixed mounts, LVDT device is installed, the pull bar that described LVDT device lower end is stretched out is rotationally connected with valve reaction plate by connector, this LVDT device upper end is connected with valve body.
Supplementing as to the one of technical scheme described in the utility model, described connector is connected by the T-shaped sheet that is connected with valve reaction plate.
Supplementing as to the one of technical scheme described in the utility model, the horizontal component symmetry of described T-shaped connection sheet has two screwed holes, has and turn hole in the middle part of the vertical portion of this T-shaped connection sheet.
Supplement as to the one of technical scheme described in the utility model, described connector uses " ┏ " type, the middle part of this connector horizontal component has flat recess, the pull bar of described LVDT device lower end extend into flat recess and fixes, the vertical portion of described connector connects by screw and the T-shaped screwed hole being connected on sheet are fixing, connector connects sheet and the pull bar of LVDT device, transmission valve position variable quantity for connecting T-shaped.
Supplementing as to the one of technical scheme described in the utility model, described valve body upper end is provided with detector, display valve position and teletransmission valve position analog quantity, and is equipped with warning function according to the actual requirements.
Beneficial effect
This utility model relates to a kind of LVDT feedback device for angle stroke butterfly valve, breach the drawback of existing feedback device, solve in the case of installation environment is severe, the problem that large-scale hydraulic butterfly valve feedback is unstable, when scrap build, need not change the body of valve, by installing the analog quantity feedback that this device just can reach stable, finally realize the gamut feedback of butterfly valve valve position.This utility model have easy for installation, improvement cost is low, practical effect good, adapt to severe installation environment and the advantage such as reliable, stable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the front view of T-shaped connection sheet described in the utility model；
Fig. 3 is the top view of connector described in the utility model.
Diagram: 1, valve body, 2, valve reaction plate, 3, T-shaped connection sheet, 4, connector, 5, LVDT device, 6, rotatable fixed mount, 7, LVDT fixed mount, 8, screwed hole, 9, turn hole, 10, flat recess.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is expanded on further.Should be understood that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model.In addition, it is to be understood that after having read the content that this utility model is lectured, this utility model can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within the application appended claims limited range equally.
Embodiment of the present utility model relates to a kind of LVDT feedback device for angle stroke butterfly valve, as Figure 1-3, including valve body 1, valve reaction plate 2 and LVDT device 5, on the sidewall of described valve body 1 side, valve reaction plate 2 is installed, this valve reaction plate 2 is arranged above rotatable fixed mount 6, in the middle part of described rotatable fixed mount 6, the sidewall with valve body 1 is rotationally connected, the upper and lower two ends of sidewall of this rotatable fixed mount 6 side are disposed with two LVDT fixed mounts 7, between two LVDT fixed mounts 7, LVDT device 5 is installed, the pull bar that described LVDT device 5 lower end is stretched out is rotationally connected with valve reaction plate 2 by connector 4, this LVDT device 5 upper end is connected with valve body 1.
Described connector 4 is connected by the T-shaped sheet 3 that is connected with valve reaction plate 2.
The horizontal component symmetry of described T-shaped connection sheet 3 has two screwed holes 8, has and turn hole 9 in the middle part of the vertical portion of this T-shaped connection sheet 3.
Described connector 4 uses " ┏ " type, the middle part of this connector 4 horizontal component has flat recess 10, the pull bar of described LVDT device 5 lower end extend into flat recess 10 and fixes, and the vertical portion of described connector 4 connects by screw is fixing with the T-shaped screwed hole 8 being connected on sheet 3.
Described valve body 1 upper end is provided with detector.
Embodiment
The valve reaction plate 2 that valve body 1 side is installed rotates and drives T-shaped connection sheet 3, T-shaped connection sheet 3 relatively rotates with connector 4, connector 4 pulls the pull bar that LVDT device 5 lower end is stretched out, rotatable fixed mount 6 is driven to rotate therewith, LVDT device 5 by valve position and the analog quantity transmission of teletransmission valve position to detector, show reading on detector, and be equipped with warning function according to the actual requirements.This utility model breaches the drawback of existing feedback device, solve in the case of installation environment is severe, the problem that large-scale hydraulic butterfly valve feedback is unstable, when scrap build, need not change the body of valve, by installing the analog quantity feedback that this device just can reach stable, finally realize the gamut feedback of butterfly valve valve position.This utility model have easy for installation, improvement cost is low, practical effect good, adapt to severe installation environment and the advantage such as reliable, stable.
Claims (5)
- null1. the LVDT feedback device for angle stroke butterfly valve，Including valve body (1)、Valve reaction plate (2) and LVDT device (5)，It is characterized in that: on the sidewall of described valve body (1) side, valve reaction plate (2) is installed，This valve reaction plate (2) is arranged above rotatable fixed mount (6)，Described rotatable fixed mount (6) middle part is rotationally connected with the sidewall of valve body (1)，The upper and lower two ends of sidewall of this rotatable fixed mount (6) side are disposed with two LVDT fixed mounts (7)，Between two LVDT fixed mounts (7), LVDT device (5) is installed，The pull bar that described LVDT device (5) lower end is stretched out is rotationally connected with valve reaction plate (2) by connector (4)，This LVDT device (5) upper end is connected with valve body (1).
- A kind of LVDT feedback device for angle stroke butterfly valve the most according to claim 1, it is characterised in that: described connector (4) is connected by the T-shaped sheet (3) that is connected with valve reaction plate (2).
- A kind of LVDT feedback device for angle stroke butterfly valve the most according to claim 2, it is characterized in that: the horizontal component symmetry of described T-shaped connection sheet (3) has two screwed holes (8), have in the middle part of the vertical portion of this T-shaped connection sheet (3) and turn hole (9).
- A kind of LVDT feedback device for angle stroke butterfly valve the most according to claim 3, it is characterised in that: described connector (4) usesType, the middle part of this connector (4) horizontal component has flat recess (10), the pull bar of described LVDT device (5) lower end extend into flat recess (10) and fixes, and the vertical portion of described connector (4) connects by screw and the T-shaped screwed hole (8) being connected on sheet (3) are fixing.
- A kind of LVDT feedback device for angle stroke butterfly valve the most according to claim 1, it is characterised in that: described valve body (1) upper end is provided with detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179274.6U CN205424074U (en) | 2016-03-09 | 2016-03-09 | A LVDT feedback device for angle stroke butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620179274.6U CN205424074U (en) | 2016-03-09 | 2016-03-09 | A LVDT feedback device for angle stroke butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205424074U true CN205424074U (en) | 2016-08-03 |
Family
ID=56533163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620179274.6U Expired - Fee Related CN205424074U (en) | 2016-03-09 | 2016-03-09 | A LVDT feedback device for angle stroke butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205424074U (en) |
-
2016
- 2016-03-09 CN CN201620179274.6U patent/CN205424074U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20190309 |