CN102890115B - control valve monitoring system - Google Patents
control valve monitoring system Download PDFInfo
- Publication number
- CN102890115B CN102890115B CN201110212566.7A CN201110212566A CN102890115B CN 102890115 B CN102890115 B CN 102890115B CN 201110212566 A CN201110212566 A CN 201110212566A CN 102890115 B CN102890115 B CN 102890115B
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- valve
- sensor
- valve rod
- shaft
- valve shaft
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Abstract
Disclose a kind of control valve monitoring system.The control valve monitoring system includes at least one sensor, it is connected to one in valve rod or valve shaft, and the change of at least one sensor detection valve rod or the mechanical integrity of one in valve shaft.A kind of device for the data for being used to provide the change on the mechanical integrity of one in the valve rod or valve shaft is provided, to allow to implement the maintenance of the valve shaft or valve rod in an efficient way.
Description
Technical field
The disclosure relate generally to control valve maintenance and, more particularly, to one kind be used for detect valve shaft in control valve
With the system of valve rod fatigue.
Background technology
When the position of valve plug or valve disc is changed by the power from actuator, the speed of control valve throttling body flowing.For
So do, control valve is necessary：(1) fluid is accommodated without to outward leakage；(2) there is the sufficient capacity for being used for expected service；
(3) can be subjected to erosion, burn into and the temperature of process influences；And (4) include be adapted to end connection with adjacent pipeline
And actuator coupling device is fitted close, so as to allow actuator thrust to be transmitted to such as valve cock stem or rotation axis.
The known control valve for having many types.For example, in control valve field, sliding stem control valve and rotation axis control
Valve processed is well-known.Sliding stem control valve includes globe valve, the globe valve be with linear movement closure member, one
Or the valve of multiple ports and the main body identified by the spherical cavity near port areas.Sliding stem control valve is usually adopted
It is used for its closure member with valve plug, it is arranged on the fluid rate for flowing through valve in flow path with adjustment.Sliding stem controls
Valve further includes valve rod, which, which has, is connected to the first end of closure member and the second end opposite with first end, this second
End is connected to actuator.
Rotation axis control valve is a kind of flow control member wherein, such as global body, part sphere, spherical or disc,
Rotated in a fluid with the valve of the capacity of control valve.Rotation axis control valve includes the valve corresponding to globe valve or slide-valve stem valve
The valve shaft of bar.
Fatigue and hair in the valve rod of the known valve shaft for having some detection rotation axis control valves or sliding stem control valve
The method of raw rupture.For example, as it is known that strain gauge is installed on control valve valve rod and valve shaft, once so as to it verify locator and actuating
Device has been given control signal and has been closed, and power or torque have been passed to the valve.
However, detection is very small so that it cannot being come the rupture of the valve rod or valve shaft that identify for example, by visual inspection
It is expected to.It is also expected to can with the rupture for earlier and more accurately detecting valve rod and valve shaft more permitted than current method with it is tired
Labor.By doing so it is possible, terminal user, which is alerted control valve, needs replacement part and service, to promote the more effective dimension of control valve
Shield and longer useful life.
The content of the invention
Control valve monitoring system includes at least one sensor of one being connected in valve rod or valve shaft, and for carrying
For the device of the data of the change on the mechanical integrity of one in the valve rod or valve shaft.The control valve monitoring system
At least one sensor can be one in acoustic emission sensor or active ultrasonic sensor.The sound emission
Sensor can detect one in the valve rod or valve shaft by the change of acoustic feature (acoustic signature)
Rupture, and the acoustic emission sensor can be connected to one end of the valve shaft or valve rod.At least one sensing
Device can also be one in piezoelectricity ripple active sensor or piezoelectric ceramics (PZT) sensor so that obtain the valve shaft or
The impedance of one in the piezoelectricity ripple active sensor of the valve rod or the piezoceramic transducer can be associated with
The impedance of the valve shaft or valve rod, to allow the change of the mechanical integrity of the valve shaft or valve rod to be detected.
In addition, the piezoelectricity ripple active sensor or PZT sensors can be connected to valve control and actuator it
Between the valve shaft or valve rod outside diameter.In addition, at least one sensor can be Fiber Bragg Grating FBG (FBG) sensing
Device.The FBG sensor can measure the strain of the regional area of the valve shaft or valve rod.In addition, the FBG sensor can be with
The outside diameter of the valve shaft or valve rod that are connected between valve control and actuator.In addition, at least one sensor can
To be wireless.At least one sensor can be merged in the valve rod or valve during the valve rod or valve shaft manufacture
Axis.At least one sensor can be connected to the valve by one or more of adhesive, welding compound or bolt
Bar or valve shaft.The control valve monitoring system can also include memory and power supply, for the perseverance in the valve shaft or valve rod
Determine Data Collection and Trouble Report.
In another example of the disclosure, a kind of valve rod of the valve shaft for detecting shaft control valve or sliding stem control valve
The method of the change of mechanical integrity includes integrating at least one sensor to valve shaft or valve rod；And use monitoring structural health conditions
Sense of Technology answers the fatigue of the valve shaft or valve rod.
Brief description of the drawings
Fig. 1 is the sectional view of rotation axis control valve；
Fig. 2 is the sectional view of sliding stem control valve；
Fig. 3 is the stereogram of the valve shaft of the rotation axis control valve of Fig. 1, which has the control merged wherein
Valve monitoring system processed；And
Fig. 4 is the stereogram of the valve shaft of the rotation axis control valve of Fig. 1, which has the control merged wherein
Another embodiment of valve monitoring system processed.
Embodiment
Referring now to Figure 1, show rotation axis control valve 10.Rotation axis control valve 10 includes valve body 12, valve inlet 14, valve
Outlet 16 and the fluid passage 18 extended between valve inlet 14 and valve outlet 16.Fluid passage 18 includes control passage 20,
And moveable control element 22, it is movably disposed in control passage 20.Control element 22 is attached to valve shaft 24
Rotation control element 22A.Rotating control element 22A can be, such as valve disc, part sphere or global body, or rotate control
Any other forms of element processed.Valve shaft 24 is operably coupled to actuator (not shown), it can be led in this area
Frequently with any type of actuator.
Control element 22 is arranged to so that the control element 22 is arranged in control passage 20, and can be used
Actuator (not shown) controls position of the control element 22 in passage 20, and the flow of control passage 20 is flowed through with control.Control
Valve 10 processed includes inner cavity 27, is sized to accommodate valve shaft 24.Valve body 12 includes packing box (packing box) 28, and main
Packing group 30 is arranged in packing box 28.The size of the packing group is suitable for around valve shaft 24.
Referring now to Figure 2, show sliding stem control valve 100.Axis control valve 10, sliding stem control is similarly rotated
Valve 100 further includes valve body 112, valve inlet 114, valve outlet 116 and the stream extended between valve inlet 114 and valve outlet 116
Body passage 118.Fluid passage 118 further includes control passage 120, and the moveable control being arranged in control passage 120
Element 122.Control element 122 is Linear Control element 122A, such as valve plug, it is connected to the first end of valve rod 124.With respect to
The second end for the valve rod 124 that one end is set is operably connected in actuator (not shown) commonly employed in the art.
Referring now to Figure 3, show the valve shaft 24 of the rotation axis control valve 10 of Fig. 1.Valve shaft 24 includes rotation at one end
A part of control element 22A.Control valve monitoring system 200 is integrated in valve shaft 24.In a similar way, control valve is supervised
Examining system 200 can also be integrated in the valve rod 124 of the sliding stem control valve 100 of Fig. 2.Control valve monitoring system 200 includes
Rupture or the change of material character occur in valve shaft 24 or valve rod 124 for detecting.More specifically, acoustic emission sensor 210A leads to
Cross bolt or other bindiny mechanisms are connected to one end of valve shaft 24 or valve rod 124.Acoustic emission sensor 210A is good for using structure
Health detects (Structural Health Monitoring, SHM) technology, and valve shaft 24 is detected by the change of acoustic feature
Or the change of the mechanical integrity of valve rod 124 (Fig. 2).
Normally, SHM is the process for realizing damage detection and characterization strategy for engineering structure.Damage is usually determined
Justice is the change of the material and/or geometric properties of architectural system, it will negatively affect system performance.SHM processes, which include, to be made
For from the dynamic response of the periodic sampling of sensor array measurement, from these measurement damage-sensivity features extraction,
And the statistical analysis of these features comes with time observing system, so that it is determined that the current state of system health.See, for example,http://en.wikipedia.org/wiki.Structural health monitoring, on April 13rd, 2011.
Control valve monitoring system 200 further includes complete on the machinery of one in valve rod 124 or valve shaft 24 for providing
Property change data device 220.Device 220 can be local digital valve positioner, the independence dress for Data Collection/simplification
Put, resource management software bag or control system such as Delta V control systems.
Now still referring to FIG. 3, sensor 210A passes through the acoustic feature between sensor 210A and valve shaft 24 or valve rod 124
Change come monitor the mechanical integrity of valve shaft 24 or valve rod 124 (Fig. 2) change.On valve shaft 24 or the machine of valve rod 124 (Fig. 2)
The data of tool integrality change are then supplied to terminal user.More specifically, the failure that is detected or for baseline signature
Deviation can be sent to local digital valve positioner, the self-contained unit for Data Collection/simplification, resource management software
Bag or control system such as Delta V control systems, each can control a part for valve monitoring system 200.
In one example, the failure detected triggers the alarm in digital valve positioner or data gathering system (not shown), its
The instruction that the state change of valve shaft 24 or valve rod 124 can be provided or will be broken down.If sensor 210A indicates valve shaft 24
Or valve rod 124 (Fig. 2) detects rupture, then terminal user can having time prepare the maintenance of valve shaft 24 or valve rod 124.Another
In example, system 200 can also determine the rate of change of detected damage, thus, there is provided the remaining useful life of the component
It is estimated.
Referring now to Figure 4, the valve shaft 24 of the rotation axis control valve 10 of Fig. 1 using another of SHM technologies again by with being controlled
Valve monitoring system 300 is shown together.In a similar way, control valve monitoring system 300 can be used for the sliding stem control of Fig. 2
The valve rod 124 of valve 100 processed.Control valve monitoring system 300 includes at least one sensor 310A, which can be used to examine
The material character of side valve axis 24 or valve rod 124 changes or Fiber Bragg Grating FBG (FBG) the sensor 310A of rupture.FBG is sensed
Device 310A is connected to the valve shaft 24 or valve rod rotated between control element 22A and actuator (not shown) via bonding or welding
124 outside diameter, the actuator are arranged on one end of the valve shaft 24 opposite with rotating control element 22A.FBG sensor 310A is surveyed
Measure the strain of regional area on valve shaft 24 or valve rod 124 (Fig. 2).By doing so it is possible, control valve monitoring system 300 includes valve shaft
24 or physical characteristic measurement supposition or calculating the estimation of component fatigue (substitution) of valve rod 124, so as to be carried for terminal user
The time safeguarded for preparing valve shaft 24 or valve rod 124.
The sensor 310A for controlling valve monitoring system 300 is alternately active sonac, the active ultrasound
Sensor passes through the ultrasonic Lamb waves (ultrasonic Lamb wave) between sonac and valve shaft 24 or valve rod 124
Change the change of the mechanical integrity to detect valve shaft 24 or valve rod 124 (Fig. 2).More specifically, active sonac with
Actuator slightly clamps valve shaft 24 or valve rod 124 (Fig. 2) material, and then etc. it is to be recorded propagated via the component produced by
Ultrasonic wave.Rupture or other defect in 124 material of valve shaft 24 or valve rod can cause back wave to deform.These active ultrasounds
Wave sensor can only be connected to the outside diameter or valve shaft 24 or valve rod 124 of valve shaft 24 or valve rod 124 via bonding or welding
One end, such as shown in Figure 3.However, active sonac tends to be installed in the one end for the valve shaft 24 for rotating valve, with
And the outside diameter installed in the valve rod 124 (Fig. 2) for slide-valve stem valve (Fig. 2).
In another embodiment, the sensor 310A for controlling valve monitoring system 300 can be one or more piezoelectricity ripples
Active sensor or piezoelectric ceramics (PZT) sensor.In this case, piezoelectricity ripple active sensor or PZT sensors
The impedance of (Fig. 2) is associated with the impedance of valve shaft 24 or valve rod 124, to allow to detect that the machinery of valve shaft 24 or valve rod 124 is complete
The change of property.
The control valve monitoring system 200 of similar Fig. 3, control valve monitoring system 300 are further included for providing on valve rod 124
Or the device 320 of the data of the change of the mechanical integrity of one in valve shaft 24.Device 320 can be the positioning of local digital valve
Device, the self-contained unit for Data Collection/simplification, resource management software bag or control system such as Delta V control systems.
Although sensor 210A and 310A can use adhesive, welding compound, bolt or other skilled in the art institute
The bindiny mechanism known is connected to valve shaft 24 and valve rod 124, but sensor 210A and 310A can also be alternatively in valve shafts 24
Or it is incorporated into valve shaft 24 or valve rod 124 during the manufacture of valve rod 124.
In addition, for sound wave or ultrasonic measurement, sensor 210A and 310A can use single wired or wireless signal
(not shown) is connected to local digital valve positioner or for Data Collection and simplified self-contained unit.For optical fiber Bragg light
Grid (FBG) design, and sensor 210A and 310A can be connected to digital valve positioner or self-contained unit using optical fiber.When one
When multiple FBG sensors are used in a control valve group, many FBG sensors can be connected in series using single optical fiber.It is right
In sound wave or ultrasonic measurement, each sensor 210A, 310A can be located at the wired or wireless address of its own.Controlling
Contribute to the mounting cost of reduction sensor 210A and 310A in valve monitoring system 200,300 using wireless senser, and reduce
The fatigue of the cable assembly of sensor 210A and 310A, sensor 210A and 310A is associated with to tie by above-mentioned various connections
Structure is physically connected to valve shaft 24 and valve rod 124.
In addition, control valve monitoring system 200,300 can also include power supply and storage device, it allows constant data to collect
And Trouble Report.
According to described above, the embodiment of many deformations and replacement of the disclosure is obvious for those skilled in the art
's.Correspondingly, this explanation is only used as example explanation, and for instructing those skilled in the art to realize best mode of the present invention
Purpose.The details of the disclosure can be varied from without departing from the spirit of the invention, and in rights reserved claimed range
All modifications exclusive use.
Claims (6)
1. one kind control valve monitoring system, including：
At least one sensor, it is connected to one in valve rod or valve shaft, and the sensor is used to detect the valve rod or valve
The change of the mechanical integrity of one in axis；And
Device for the data for providing the change on the mechanical integrity of one in the valve rod or valve shaft,
Wherein, at least one sensor is one in piezoelectricity ripple active sensor or piezoelectric ceramics (PZT) sensor,
And wherein, one in the piezoelectricity ripple active sensor or the piezoelectric ceramics (PZT) sensor is attached to the valve
Bar or valve shaft it is being connected to one end of control element and the valve rod or valve shaft with the control member in the valve rod or valve shaft
Outer surface between the opposite other end of part, and
Wherein, at least one sensor is connected to described by one or more of adhesive, welding compound or bolt
Valve rod or valve shaft, and
To the resistance of one in the valve shaft or the piezoelectricity ripple active sensor of valve rod or the piezoceramic transducer
The anti-impedance for being associated with the valve shaft or valve rod, to allow the change of the mechanical integrity of the valve shaft or valve rod to be detected.
2. control valve monitoring system according to claim 1, it is characterised in that at least one sensor is wireless
's.
3. control valve monitoring system according to claim 1, it is characterised in that the institute during the valve rod or valve shaft manufacture
State at least one sensor and be merged in the valve rod or valve shaft.
4. control valve monitoring system according to claim 1, it is characterised in that further include memory and power supply, it is used for
Constant data in the valve shaft or valve rod is collected and Trouble Report.
5. a kind of method of the change of the mechanical integrity of the valve rod of valve shaft for detecting shaft control valve or sliding stem control valve,
The described method includes：
At least one sensor is integrated to valve shaft or valve rod via one in adhesive or welding compound, wherein, described at least one
A sensor is one in piezoelectricity ripple active sensor or piezoelectric ceramics (PZT) sensor；And
The fatigue of the valve shaft or valve rod is sensed, wherein sensing the fatigue of the valve shaft or valve rod is included at least one biography
The impedance of sensor is associated with the impedance of the valve rod or valve shaft,
Wherein, integrate at least one sensor includes to the valve shaft or valve rod：It is attached the active sensing of piezoelectricity ripple
In device or the piezoelectric ceramics (PZT) sensor it is described it is at least one to the valve rod or valve shaft in the valve rod or valve shaft
The outer surface being connected between one end of control element and the valve rod or the other end opposite with the control element of valve shaft.
6. according to the method described in claim 5, provided it is characterized in that, further including on the mechanical complete of the valve shaft or valve rod
The data of the change of whole property to local digital valve positioner, for Data Collection with simplify self-contained unit, asset management
One or more of software kit or control system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110212566.7A CN102890115B (en) | 2011-07-21 | 2011-07-21 | control valve monitoring system |
| CN201810200645.8A CN108445080A (en) | 2011-07-21 | 2011-07-21 | Control valve monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110212566.7A CN102890115B (en) | 2011-07-21 | 2011-07-21 | control valve monitoring system |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810200645.8A Division CN108445080A (en) | 2011-07-21 | 2011-07-21 | Control valve monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102890115A CN102890115A (en) | 2013-01-23 |
| CN102890115B true CN102890115B (en) | 2018-04-13 |
Family
ID=47533683
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110212566.7A Active CN102890115B (en) | 2011-07-21 | 2011-07-21 | control valve monitoring system |
| CN201810200645.8A Pending CN108445080A (en) | 2011-07-21 | 2011-07-21 | Control valve monitoring system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810200645.8A Pending CN108445080A (en) | 2011-07-21 | 2011-07-21 | Control valve monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN102890115B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10442422B2 (en) * | 2017-12-22 | 2019-10-15 | Goodrich Corporation | Systems and methods for monitoring a health status of a servo valve |
| CN108020269B (en) * | 2018-01-30 | 2023-09-29 | 吉林大学 | Acoustic emission testing device for detecting bending cracks and fractures of shaft parts |
| CN109298076B (en) * | 2018-11-13 | 2021-05-04 | 中国核动力研究设计院 | Lamb wave-based active valve internal leakage damage detection system and method |
| CN109540029A (en) * | 2018-11-19 | 2019-03-29 | 大连理工大学 | A kind of the microjet field measurement apparatus and method of jet pipe servo valve |
| DK180883B1 (en) * | 2019-12-02 | 2022-06-13 | Danfoss As | Cavitation sensing unit for providing a cavitation sensing signal and being adapted to be connected to a control valve of a hydrodynamic system |
| CN113108120B (en) * | 2021-05-10 | 2022-11-25 | 河南泉舜流体控制科技有限公司 | Automatic locking device with valve rod bending detection function for butterfly valve |
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- 2011-07-21 CN CN201810200645.8A patent/CN108445080A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108445080A (en) | 2018-08-24 |
| CN102890115A (en) | 2013-01-23 |
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