CN102890115A - Control valve monitoring system - Google Patents
Control valve monitoring system Download PDFInfo
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- CN102890115A CN102890115A CN2011102125667A CN201110212566A CN102890115A CN 102890115 A CN102890115 A CN 102890115A CN 2011102125667 A CN2011102125667 A CN 2011102125667A CN 201110212566 A CN201110212566 A CN 201110212566A CN 102890115 A CN102890115 A CN 102890115A
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- valve rod
- valve shaft
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Abstract
The invention discloses a control valve monitoring system. The control valve monitoring system comprises at least one sensor, the at least one sensor is connected to one of a valve rod or a valve shaft, and the at least one sensor detects the changes of the mechanical integrity of one of the valve rod or the valve shaft. The invention provides a device for providing data about the changes of the mechanical integrity of one of the valve rod or the valve shaft so as to allow the implementation of the maintenance of the valve rod or the valve shaft in an effective mode.
Description
Technical field
The disclosure relate generally to operation valve maintenance and, more specifically, relate to a kind of system for detection of valve shaft in the operation valve and valve rod fatigue.
Background technology
When the position of valve plug or valve disc was changed by the power from actuator, operation valve was regulated the speed of Fluid Flow in A.For doing like this, operation valve is necessary: (1) containing fluid and not to outward leakage; (2) has capacity for the abundance of expection service; (3) can stand erosion, burn into and the temperature effect of process; And (4) comprise suitable end and connect to closely cooperate with adjacent pipeline and actuator coupling device, thereby allow actuator thrust to be transmitted to for example valve cock stem or rotation axis.
Knownly permitted eurypalynous operation valve.For example, in the control valve field, sliding stem operation valve and rotation axis operation valve are well-known.The sliding stem operation valve comprises spherical valve, and this spherical valve is to have linear movement dam member, one or more port and by near the valve of the main body of the spherical cavity identification the port zone.The sliding stem operation valve adopts valve plug to be used for its member that dams usually, and it is arranged in the flow path with the flow through fluid rate of valve of adjustment.The sliding stem operation valve also comprises valve rod, and this valve rod has the first end that is connected to the member that dams and second end relative with first end, and this second end is connected to actuator.
The rotation axis operation valve is a kind of therein fluid control member, and for example global body, part spheroid, sphere or disc are rotated the valve with the capacity of operation valve in fluid.The rotation axis operation valve comprises the valve shaft corresponding to the valve rod of spherical valve or slide-valve stem valve.
Tired in the more known valve rod that valve shafts that detect the rotation axis operation valves or sliding stem operation valve arranged and the method for breaking.For example, knownly at operation valve valve rod and valve shaft strainometer is installed, thereby in case examine steady arm and actuator and be given control signal and close, power or torque have been passed to this valve.
Yet, to such an extent as to detect very little can't being supposed to by valve rod or the breaking of valve shaft that for example visual inspection is identified.Also expectation can be with more Zao than present method was allowed and detect more accurately breaking and fatigue of valve rod and valve shaft.By doing like this, the terminal user is alerted operation valve needs replacement part and service, with the more effective maintenance of promotion operation valve and longer useful life.
Summary of the invention
The operation valve monitoring system comprises one at least one sensor that is connected in valve rod or the valve shaft, and is used for providing the device about the data of the variation of one mechanical integrity of described valve rod or valve shaft.Described at least one sensor of described operation valve monitoring system can be in calibrate AE sensor or the active ultrasonic sensor.Described calibrate AE sensor can detect by the variation of acoustic feature (acoustic signature) in described valve rod or the valve shaft one breaking, and described calibrate AE sensor can be connected to an end of described valve shaft or valve rod.Described at least one sensor can also be in piezoelectricity ripple active sensor or piezoelectric ceramics (PZT) sensor, so that obtain the described piezoelectricity ripple active sensor of described valve shaft or described valve rod or the impedance that one impedance in the described piezoceramic transducer can be associated with described valve shaft or valve rod, detected with the variation of the mechanical integrity that allows described valve shaft or valve rod.
In addition, described piezoelectricity ripple active sensor or PZT sensor can be connected to described valve shaft between valve control and the actuator or the external diameter of valve rod.In addition, described at least one sensor can be Fiber Bragg Grating FBG (FBG) sensor.Described FBG sensor can be measured the strain of the regional area of described valve shaft or valve rod.In addition, described FBG sensor can be connected to described valve shaft between valve control and the actuator or the external diameter of valve rod.In addition, described at least one sensor can be wireless.Described at least one sensor can be merged in described valve rod or valve shaft during described valve rod or valve shaft manufacturing.Described at least one sensor can be by one or more described valve rod or the valve shafts of being connected in bonding agent, welding compound or the bolt.Described operation valve monitoring system can also comprise storer and power supply, collects and Trouble Report with the constant data that is used for described valve shaft or valve rod.
In another example of the present disclosure, the method for the variation of the mechanical integrity of the valve rod of a kind of valve shaft that detects the rotating shaft operation valve or sliding stem operation valve comprises that integrated at least one sensor is to valve shaft or valve rod; And use structural health monitoring technology to respond to the fatigue of described valve shaft or valve rod.
Description of drawings
Fig. 1 is the sectional view of rotation axis operation valve;
Fig. 2 is the sectional view of sliding stem operation valve;
Fig. 3 is the stereographic map of valve shaft of the rotation axis operation valve of Fig. 1, and this rotation axis operation valve has the operation valve monitoring system that is incorporated in wherein; And
Fig. 4 is the stereographic map of valve shaft of the rotation axis operation valve of Fig. 1, and this rotation axis operation valve has another embodiment of the operation valve monitoring system that is incorporated in wherein.
Embodiment
With reference now to Fig. 1,, shows rotation axis operation valve 10.Rotation axis operation valve 10 comprises valve body 12, valve inlet 14, valve outlet port 16 and the fluid passage 18 of extending between valve inlet 14 and valve outlet port 16.Fluid passage 18 comprises control channel 20, and control element 22 movably, and it is arranged in the control channel 20 movably.Control element 22 is the rotation control element 22A that are connected to valve shaft 24.Control element 22A can be, valve disc for example, and part spheroid or global body perhaps rotate any other forms of control element.Valve shaft 24 operationally is couple to the actuator (not shown), and it can be the actuator of the common any type that adopts in this area.
With reference now to Fig. 2,, shows sliding stem operation valve 100.Similar rotation axis operation valve 10, sliding stem operation valve 100 also comprise valve body 112, valve inlet 114, valve outlet port 116 and the fluid passage 118 of extending between valve inlet 114 and valve outlet port 116.Fluid passage 118 also comprises control channel 120, and is arranged on the movably control element 122 in the control channel 120.Control element 122 is Linear Control element 122A, valve plug for example, and it is connected to the first end of valve rod 124.The second end of the valve rod 124 of first end setting is operably connected to the actuator (not shown) that usually adopts in this area relatively.
With reference now to Fig. 3,, shows the valve shaft 24 of the rotation axis operation valve 10 of Fig. 1.Valve shaft 24 comprises the part of rotation control element 22A at one end.Operation valve monitoring system 200 is integrated in the valve shaft 24.In a similar fashion, operation valve monitoring system 200 also can be integrated in the valve rod 124 of sliding stem operation valve 100 of Fig. 2.Operation valve monitoring system 200 comprises for detection of breaking in valve shaft 24 or the valve rod 124 or the variation of material character.More specifically, calibrate AE sensor 210A is connected to an end of valve shaft 24 or valve rod 124 by bolt or other bindiny mechanisms.Calibrate AE sensor 210A utilizes structural health to detect (Structural Health Monitoring, SHM) technology, detects the variation of the mechanical integrity of valve shaft 24 or valve rod 124 (Fig. 2) by the variation of acoustic feature.
Normally, SHM realizes that the damage that is used for engineering structure detects and characterize tactful process.Damage is generally defined as the variation of material and/or the geometric properties of architectural system, and it will adversely affect system performance.The SHM process comprises to use from the dynamic response of the periodic sampling of sensor array to be measured, comes in time observing system from the damage of these measurements-extraction of susceptibility feature and the statistical study of these features, thereby determines the current state of system health.Referring to for example
Http:// en.wikipedia.org/wiki.Structural health monitoring, on April 13rd, 2011.
Operation valve monitoring system 200 also comprises for the device 220 that the data that change about valve rod 124 or valve shaft 24 one mechanical integrity are provided.Device 220 can be for example Delta V control system of local digital valve positioner, autonomous device, resource management software bag or the control system that is used for Data Collection/simplification.
Still with reference to figure 3, the mechanical integrity that sensor 210A monitors valve shaft 24 or valve rod 124 (Fig. 2) by the variation of the acoustic feature between sensor 210A and valve shaft 24 or the valve rod 124 changes now.The data that change about the mechanical integrity of valve shaft 24 or valve rod 124 (Fig. 2) then are provided for the terminal user.More specifically, the fault that detects or for departing from of baseline signature can be sent to the local digital valve positioner, the autonomous device, resource management software bag or the control system that are used for Data Collection/simplification Delta V control system for example, wherein each can be the part of operation valve monitoring system 200.In one example, the fault that detects triggers the warning in digital valve positioner or data gathering system (not shown), the indication that it can provide the state variation of valve shaft 24 or valve rod 124 maybe will break down.If sensor 210A indication valve shaft 24 or valve rod 124 (Fig. 2) detect break, then the terminal user can prepare the maintenance of valve shaft 24 or valve rod 124 if having time.In another example, system 200 also can determine the rate of change of the damage that detects, thereby, the expectation of the remaining useful life of these parts is provided.
With reference now to Fig. 4,, the valve shaft 24 of the rotation axis operation valve 10 of Fig. 1 is illustrated with another operation valve monitoring system 300 of using the SHM technology again.In a similar fashion, operation valve monitoring system 300 also can be used for the valve rod 124 of the sliding stem operation valve 100 of Fig. 2.Operation valve monitoring system 300 comprises at least one sensor 310A, and this sensor can be for detection of the material character variation of valve shaft 24 or valve rod 124 or Fiber Bragg Grating FBG (FBG) the sensor 310A that breaks.FBG sensor 310A is connected to valve shaft 24 between valve element 22A and the actuator (not shown) or the external diameter of valve rod 124 via bonding or welding, and this actuator is arranged on an end of the valve shaft 24 relative with valve element 22A.FBG sensor 310A measures the strain of valve shaft 24 or the upper regional area of valve rod 124 (Fig. 2).By doing like this, operation valve monitoring system 300 has comprised the physical characteristics measurement (replacing estimation supposition or that calculate of parts fatigue) of valve shaft 24 or valve rod 124, thereby the time of preparation valve shaft 24 or valve rod 124 maintenances is provided for the terminal user.
The sensor 310A of operation valve monitoring system 300 alternately is active sonac, and this active sonac detects the variation of the mechanical integrity of valve shaft 24 or valve rod 124 (Fig. 2) by the variation of the ultrasonic Lamb waves between sonac and valve shaft 24 or the valve rod 124 (ultrasonic Lamb wave).More specifically, active sonac and actuator are clamped valve shaft 24 or valve rod 124 (Fig. 2) material a little, and then wait the ultrasound wave that produces of propagating via these parts to be recorded.In valve shaft 24 or valve rod 124 materials break or the other defect meeting so that reflection wave distortion.These active ultrasonic sensors can only be connected to the external diameter of valve shaft 24 or valve rod 124 or an end of valve shaft 24 or valve rod 124 via bonding or welding, for example as shown in Figure 3.Yet active sonac tends to be installed in an end of the valve shaft 24 of rotating valve, and is installed in the external diameter for the valve rod 124 (Fig. 2) of slide-valve stem valve (Fig. 2).
In another embodiment, the sensor 310A of operation valve monitoring system 300 can be one or more piezoelectricity ripple active sensor or piezoelectric ceramics (PZT) sensor.In this case, the impedance of piezoelectricity ripple active sensor or PZT sensor (Fig. 2) is associated with the impedance of valve shaft 24 or valve rod 124, with the variation of the mechanical integrity that allows to detect valve shaft 24 or valve rod 124.
The operation valve monitoring system 200 of similar Fig. 3, operation valve monitoring system 300 also comprise for the device 320 that the data that change about valve rod 124 or valve shaft 24 one mechanical integrity are provided.Device 320 can be for example Delta V control system of local digital valve positioner, autonomous device, resource management software bag or the control system that is used for Data Collection/simplification.
Although sensor 210A and 310A can use the bindiny mechanism known to bonding agent, welding compound, bolt or other those skilled in the art to be connected to valve shaft 24 and valve rod 124, sensor 210A and 310A are also can be alternatively merged during valve shaft 24 or valve rod 124 are made to enter valve shaft 24 or valve rod 124.
In addition, for sound wave or ultrasonic measurement, sensor 210A and 310A can use independent wired or wireless signal (not shown) to be connected to the local digital valve positioner or be used for the autonomous device of Data Collection and simplification.For Fiber Bragg Grating FBG (FBG) design, sensor 210A and 310A can use optical fiber to be connected to digital valve positioner or autonomous device.When an operation valve assembly uses a plurality of FBG sensor, many FBG sensors can use independent optical fiber to be connected in series.For sound wave or ultrasonic measurement, each sensor 210A, 310A can be positioned at the wired or wireless address of himself.In operation valve monitoring system 200, use wireless senser to help to reduce the erected cost of sensor 210A and 310A in 300, and reducing the fatigue of the cable assembly be associated with sensor 210A and 310A, this sensor 210A and 310A physically are connected to valve shaft 24 and valve rod 124 by above-mentioned various syndetons.
In addition, operation valve monitoring system 200,300 can also comprise power supply and memory storage, and it allows constant data to collect and Trouble Report.
According to aforementioned description, the embodiment of many distortion of the present disclosure and replacement is obvious for those skilled in the art.Correspondingly, this explanation is only as example explanation, and is used for the purpose that instruction those skilled in the art realize best mode of the present invention.Details of the present disclosure can not depart to some extent variation under the spirit of the present invention, and the exclusive use of all modifications in the rights reserved claimed range.
Claims (23)
1. operation valve monitoring system comprises:
At least one sensor, it is connected in valve rod or the valve shaft one, and described sensor is for detection of the variation of one mechanical integrity in described valve rod or the valve shaft; And
Be used for providing the device about the data of the described variation of one mechanical integrity of described valve rod or valve shaft.
2. operation valve monitoring system according to claim 1 is characterized in that, described at least one sensor is in calibrate AE sensor or the active ultrasonic sensor.
3. operation valve monitoring system according to claim 2 is characterized in that, described calibrate AE sensor detects in described valve rod or the valve shaft one breaking by the variation in the acoustic feature.
4. operation valve monitoring system according to claim 2 is characterized in that, described calibrate AE sensor is connected to an end of described valve rod or valve shaft.
5. operation valve monitoring system according to claim 1 is characterized in that, described at least one sensor is in piezoelectricity ripple active sensor or piezoelectric ceramics (PZT) sensor.
6. operation valve monitoring system according to claim 5, it is characterized in that, the impedance that is associated with described valve shaft or valve rod to described piezoelectricity ripple active sensor or one the impedance in the described piezoceramic transducer of described valve shaft or valve rod, detected with the variation of the mechanical integrity that allows described valve shaft or valve rod.
7. operation valve monitoring system according to claim 5 is characterized in that, in described piezoelectricity ripple active sensor or the PZT sensor one is connected to described valve shaft between valve control and the actuator or the external diameter of valve rod.
8. operation valve monitoring system according to claim 1 is characterized in that, described at least one sensor is Fiber Bragg Grating FBG (FBG) sensor.
9. operation valve monitoring system according to claim 8 is characterized in that, the strain of the regional area of the described valve shaft of described Fiber Bragg Grating FBG (FBG) sensor measurement or valve rod.
10. operation valve monitoring system according to claim 9 is characterized in that, described FBG sensor is connected to described valve rod between valve control and the actuator or the external diameter of valve shaft.
11. operation valve monitoring system according to claim 1 is characterized in that, described at least one sensor is wireless.
12. operation valve monitoring system according to claim 1 is characterized in that, described at least one sensor is merged in described valve rod or valve shaft during described valve rod or valve shaft manufacturing.
13. operation valve monitoring system according to claim 1 is characterized in that, described at least one sensor is by one or more described valve rod or the valve shafts of being connected in bonding agent, welding compound or the bolt.
14. operation valve monitoring system according to claim 1 is characterized in that, also comprises storer and power supply, its constant data that is used for described valve shaft or valve rod is collected and Trouble Report.
15. the method for the variation of the mechanical integrity of the valve rod of a valve shaft that detects the rotating shaft operation valve or sliding stem operation valve, described method comprises:
Integrated at least one sensor is to valve shaft or valve rod; And
Use structural health monitoring technology to respond to the fatigue of described valve shaft or valve rod.
16. method according to claim 15, it is characterized in that, described at least one sensor is one or more in calibrate AE sensor, ultrasonic sensor, piezoelectricity ripple active sensor, Athens pottery (PZT) actuator, piezoelectric ceramics (PZT) sensor or Fiber Bragg Grating FBG (FBG) sensor.
17. method according to claim 15, it is characterized in that, the fatigue of responding to described valve shaft or valve rod also comprise the variation of the acoustic feature between at least one that detects in described sensor and described valve shaft or the valve rod or detect described sensor and described valve shaft or valve rod between the variation of ultrasonic Lamb waves in one.
18. method according to claim 17 is characterized in that, integrated at least one sensor comprises an end that described at least one sensor is connected to described valve rod or valve shaft via bolt or other bindiny mechanisms to described valve shaft or valve rod.
19. method according to claim 15, it is characterized in that, the fatigue of responding to described valve shaft or valve rod comprise the strain on the zone of measuring described valve shaft or valve rod or detect described sensor and described valve shaft or valve rod between the variation of ultrasonic Lamb waves in one.
20. method according to claim 19 is characterized in that, integrated at least one sensor comprises the external diameter that described at least one sensor is connected to described valve shaft or valve rod via bonding or welding to described valve shaft or valve rod.
21. method according to claim 19 is characterized in that, the variation that detects ultrasonic Lamb waves also comprise clamp described valve rod or valve shaft material and etc. the ultrasound wave of propagating via described valve rod or valve shaft that produces to be recorded.
22. method according to claim 15 is characterized in that, the fatigue of responding to described valve shaft or valve rod comprises the impedance that the impedance of described at least one sensor is associated with described valve rod or valve shaft.
23. method according to claim 15, it is characterized in that, also comprise provide about the data of the described variation of the mechanical integrity of described valve shaft or valve rod to the local digital valve positioner, be used for autonomous device, resource management software bag or control system one or more of Data Collection and simplification.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200645.8A CN108445080A (en) | 2011-07-21 | 2011-07-21 | Control valve monitoring system |
| CN201110212566.7A CN102890115B (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 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810200645.8A Division CN108445080A (en) | 2011-07-21 | 2011-07-21 | Control valve monitoring system |
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| Publication Number | Publication Date |
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| CN102890115A true CN102890115A (en) | 2013-01-23 |
| CN102890115B CN102890115B (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810200645.8A Pending CN108445080A (en) | 2011-07-21 | 2011-07-21 | Control valve monitoring system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020269A (en) * | 2018-01-30 | 2018-05-11 | 吉林大学 | A kind of acoustic emission test device detected for axial workpiece bending crack with fracture |
| CN109298076A (en) * | 2018-11-13 | 2019-02-01 | 中国核动力研究设计院 | Damage detection system and method are leaked in a kind of active valve based on Lamb wave |
| EP3501927A1 (en) * | 2017-12-22 | 2019-06-26 | Goodrich Corporation | Systems and methods for monitoring a health status of a servo valve |
| CN112984205A (en) * | 2019-12-02 | 2021-06-18 | 丹佛斯有限公司 | Cavitation sensing unit |
| CN113108120A (en) * | 2021-05-10 | 2021-07-13 | 潘泓璋 | Automatic locking device with valve rod bending detection function for butterfly valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3501927A1 (en) * | 2017-12-22 | 2019-06-26 | Goodrich Corporation | Systems and methods for monitoring a health status of a servo valve |
| US10442422B2 (en) | 2017-12-22 | 2019-10-15 | Goodrich Corporation | Systems and methods for monitoring a health status of a servo valve |
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| 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 |
| CN109298076A (en) * | 2018-11-13 | 2019-02-01 | 中国核动力研究设计院 | Damage detection system and method are leaked in a kind of active valve based on Lamb wave |
| 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 |
| CN112984205A (en) * | 2019-12-02 | 2021-06-18 | 丹佛斯有限公司 | Cavitation sensing unit |
| CN113108120A (en) * | 2021-05-10 | 2021-07-13 | 潘泓璋 | Automatic locking device with valve rod bending detection function for butterfly valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108445080A (en) | 2018-08-24 |
| CN102890115B (en) | 2018-04-13 |
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