CN115854943A - GIL three-post insulator positioning device and method - Google Patents
GIL three-post insulator positioning device and method Download PDFInfo
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Abstract
The application discloses a GIL three-post insulator positioning device and method, and relates to the technical field of GIL operation detection, wherein the positioning device comprises a linear fixing device, an annular fixing device, a knocking device, a sound collecting device and a signal processing device. The GIL pipeline to be tested is knocked through the knocking device, the sound is collected through the sound collecting device, and then the sound signal is processed through the signal processing device to determine the insulation position of the three supporting columns. The knocking device is driven by the linear fixing device to knock different positions along the central axis direction of the GIL pipeline to be tested, and the axial positions of the three-post insulators can be determined firstly. After the axial positions of the three-post insulators are determined, the determined axial positions utilize the annular fixing device to drive the knocking device to knock at different circumferential positions, and the circumferential positions of all the post legs of the three-post insulators can be further determined. The position of three post insulators in the location GIL pipeline that this design can be convenient accurate.
Description
Technical Field
The application relates to the technical field of GIL operation detection, in particular to a GIL three-post insulator positioning device and method.
Background
The gas insulated transmission line (GIL) can replace the traditional overhead line or power cable due to the characteristics of large transmission capacity, small loss, high safety and the like, and can be used for large-capacity and long-distance electric energy transmission.
Three-post insulators are largely used in GIL to support the conductor and maintain the insulation of the high voltage conductor portion from the low voltage housing portion, which is critical to the long term stable operation of the GIL. The slidable three-post insulator is widely applied to the GIL air chamber and can play important roles in keeping the mechanical stability of the GIL, collecting particles and the like. However, due to the closed nature of the GIL, it is difficult to directly observe the position of the post insulator, and during long-term operation, the position of the sliding insulator may change, requiring positioning of the post insulator.
However, the positioning method for the three-post insulator at present can only perform positioning according to the manufacturing drawing of a manufacturer, and the accurate position of the three-post insulator cannot be obtained in actual operation.
Disclosure of Invention
In view of this, the present application provides a positioning device and a positioning method for a GIL three-post insulator, which can conveniently and accurately position the position of the three-post insulator in a GIL pipeline, and provide a reference for operation and maintenance of a pipe rack.
In order to achieve the technical purpose, the application provides a GIL three-post insulator positioning device which comprises a linear fixing device, an annular fixing device, a knocking device, a sound collecting device and a signal processing device;
the knocking device can provide impact force with adjustable size and is used for knocking the GIL pipeline to be detected to generate an acoustic signal;
the annular fixing device is wrapped on the GIL pipeline to be tested, the central axis of the annular fixing device is overlapped with the central axis of the GIL pipeline, and the annular fixing device is used for driving the knocking device to move circumferentially around the GIL pipeline to be tested so as to generate acoustic signals excited at different circumferential positions;
the linear fixing device is arranged in parallel to the central axis of the GIL pipeline to be detected and keeps a constant distance with the GIL pipeline to be detected;
the linear fixing device is used for driving the knocking device to move along the direction of the central axis of the GIL pipeline to be tested so as to generate acoustic signals excited at different axial positions;
the sound acquisition device is used for acquiring sound signals generated when the knocking device knocks the GIL pipeline to be tested;
the signal processing device is electrically connected with the sound collecting device.
Further, the knocking device is detachably mounted on the linear fixing device or the annular fixing device.
Further, the knocking device is arranged on the annular fixing device;
the linear fixing device is connected with the annular fixing device and used for driving the annular fixing device to move along the direction of the central axis of the GIL pipeline to be detected so as to drive the knocking device to move along the direction of the central axis of the GIL pipeline to be detected.
Further, the knocking device is a knocking hammer.
Further, the knocking end of the knocking hammer is made of stainless steel materials.
Further, the sound acquisition device is a microphone, and the response frequency is 3.15Hz to 20kHz.
Further, the linear fixing device comprises a linear guide rail and a first sliding mechanism;
the first sliding mechanism is mounted on the linear guide rail and can move on the linear guide rail.
Further, the annular fixing device comprises an annular guide rail and a second sliding mechanism;
the second sliding mechanism is mounted on the annular guide rail and can move on the annular guide rail.
The application also discloses a GIL three-post insulator positioning method, which is applied to the GIL three-post insulator positioning device and comprises the following steps:
the knocking device is driven to knock the GIL pipeline to be detected once every a first preset distance along the direction of the central axis of the GIL pipeline to be detected through the linear fixing device until the signal processing device determines the axial position of a three-post insulator in the GIL pipeline to be detected based on the sound signal collected by the sound collecting device;
and driving the knocking device to knock once every second preset distance around the circumferential direction of the GIL pipeline to be detected through the determined annular fixing device on the axial position until the signal processing device determines the circumferential position of each column leg of the three-column insulator in the GIL pipeline to be detected based on the sound signal acquired by the sound acquisition device.
Further, the first preset distance and the second preset distance are 10cm.
According to the technical scheme, the positioning device for the three GIL supporting insulators comprises a linear fixing device, an annular fixing device, a knocking device, a sound collecting device and a signal processing device. The pipeline of the GIL to be detected is knocked through the knocking device, the sound is collected through the sound collecting device, and then the sound signal is processed through the signal processing device to determine the condition of the three-support insulation position in the pipeline of the GIL to be detected. The knocking device can knock different positions along the central axis direction of the GIL pipeline to be tested under the driving of the linear fixing device, so that the axial positions of the three-post insulators can be determined firstly. After the axial positions of the three-post insulators are determined, the determined axial positions can be used for driving the knocking device to knock at different circumferential positions by the aid of the annular fixing device, and accordingly circumferential positions of all post legs of the three-post insulators can be further determined. The device design can be based on acoustic signal detection, and the position of three post insulators in convenient accurate location GIL pipeline provides the reference for piping lane operation maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural view of a GIL three post insulator positioning device provided in the present application without a ring fixture;
fig. 2 is a schematic structural view of a GIL three post insulator positioning device provided in the present application without a linear fixture;
fig. 3 is a flowchart of a method for positioning a GIL three post insulator provided in the present application;
in the figure: 1. a GIL pipeline to be tested; 2. a three-post insulator; 3. a high voltage bus; 4. a linear fixing device; 5. a knocking device; 6. a sound collection device; 7. a signal processing device; 8. an annular fixing device.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood as specific cases by those of ordinary skill in the art.
The embodiment of the application discloses a GIL three-post insulator positioning device.
Referring to fig. 1 and 2, an embodiment of a positioning device for a GIL three-post insulator provided in an embodiment of the present application includes:
a linear fixing device 4, a ring-shaped fixing device 8, a knocking device 5, a sound collecting device 6 and a signal processing device 7.
The knocking device 5 can provide impact force with adjustable magnitude and is used for knocking the GIL pipeline 1 to be tested to generate an acoustic signal.
The annular fixing device 8 is wrapped around the GIL pipeline 1 to be tested, the central axis of the annular fixing device coincides with the central axis of the GIL pipeline, and the annular fixing device is used for driving the knocking device 5 to move circumferentially around the GIL pipeline 1 to be tested so as to generate acoustic signals excited at different circumferential positions.
The linear fixing device 4 is arranged in parallel to the central axis of the GIL pipeline 1 to be detected and keeps a constant distance with the GIL pipeline 1 to be detected; and the linear fixing device 4 is used for driving the knocking device 5 to move along the direction of the central axis of the GIL pipeline 1 to be tested so as to generate acoustic signals excited at different axial positions.
The sound acquisition device 6 is used for acquiring a sound signal generated by knocking the GIL pipeline 1 to be detected by the knocking device 5; the signal processing device 7 is electrically connected with the sound collecting device 6, can receive and process the sound signals collected by the sound collecting device 6, extracts the time-frequency domain characteristics of the sound signals, obtains the sound signal characteristics based on a computer program, and positions the three-post insulator 2 in the GIL pipeline 1 to be detected based on the sound signal characteristics. The signal processing device 7 may be a PLC controller, a microprocessor, or the like, and is not particularly limited.
The pipeline 1 to be tested is knocked by the knocking device 5, the sound is collected by the sound collecting device 6, and then the sound signal is processed by the signal processing device 7 to determine the condition of the three-support insulation position in the pipeline 1 to be tested. The knocking device 5 can knock different positions along the central axis direction of the GIL pipeline 1 to be tested under the driving of the linear fixing device 4, so that the axial position of the three-post insulator 2 can be determined firstly. After the axial positions of the three-post insulators 2 are determined, the determined axial positions can be used for driving the knocking devices 5 to knock at different circumferential positions by the aid of the annular fixing devices 8, and accordingly circumferential positions of all the post legs of the three-post insulators 2 can be further determined. The device design can be based on acoustic signal detection, and three post insulators 2's position in convenient accurate location GIL pipeline provides the reference for piping lane operation maintenance.
The above is a first embodiment of a positioning device for a GIL three-post insulator provided in the present application, and the following is a second embodiment of a positioning device for a GIL three-post insulator provided in the present application, specifically referring to fig. 1 to fig. 2.
The scheme based on the first embodiment is as follows:
further, the rapping device 5 is detachably mounted to the linear fixture 4 or to the annular fixture 8. It will be appreciated that the linear fixture 4 and the annular fixture 8 are used separately, and that when axial positioning is required, the linear fixture 4 can be mounted on the GIL pipe 1 to be tested, and the rapping device 5 can be mounted on the linear fixture 4. When circumferential positioning is needed, the annular fixing device 8 can be mounted on the GIL pipeline 1 to be measured, and then the knocking device 5 is mounted on the annular fixing device 8.
Further, the rapping device 5 is mounted on an annular fixture 8. The linear fixing device 4 is connected with the annular fixing device 8 and used for driving the annular fixing device 8 to move along the direction of the central axis of the GIL pipeline 1 to be detected so as to drive the knocking device 5 to move along the direction of the central axis of the GIL pipeline 1 to be detected. It can be understood that the linear fixing device 4 can also be connected and matched between the annular fixing devices 8, the annular fixing devices 8 are connected with the knocking devices 5 for driving the knocking devices 5 to move circumferentially, and the linear fixing devices 4 are connected with the annular fixing devices 8 for driving the knocking devices 5 to move axially by driving the annular fixing devices 8 to move axially. Under the design, the linear fixing device 4 and the annular fixing device 8 can be integrally installed on the GIL pipeline 1 to be tested together, the knocking device 5 does not need to be transferred between the linear fixing device 4 and the annular fixing device 8, and the use is more convenient.
The GIL pipeline 1 that awaits measuring in this application specifically can be the GIL pipeline of actual operation, of course, for the convenience detects the location, this GIL pipeline 1 that awaits measuring also can be simulation pipeline (air chamber) for simulate actual operation's GIL structure, also have three post insulators 2 that are used for simulating the in-service use insulator in this GIL pipeline 1 that awaits measuring that corresponds, have high-voltage bus 3 in the while, it constitutes the structure of simulation actual insulator jointly with GIL pipeline, three post insulators 2. When the pipeline to be tested is a simulated 1000kV GIL, the diameter of the pipeline (air chamber) is 880mm, and the wall thickness of the pipeline is 8mm.
Further, the rapping device 5 is preferably designed as a rapping hammer. From total structural component, this knocking device 5 has swing mechanism, tup and motor, and the output shaft of this motor passes through swing mechanism and tup and is connected for drive tup reciprocating swing to realize the action of strikeing, can specifically refer to existing knocking hammer and set up, do not describe in detail.
Further, the knocking end of the knocking hammer is made of stainless steel materials, so that loss in the using process can be reduced, and the impact force of the knocking device 5 can range from 1N to 100N. The knocking hammer
Further, the sound collection device 6 may be a microphone, and the response frequency is 3.15Hz to 20kHz. The sound-collecting device 6 can be fixed together with the striking device 5 and can be moved axially or circumferentially together. The microphone may be a microphone of a GRAS 46AE type, and the frequency band of the microphone is located in the audible sound range, and those skilled in the art can make appropriate design changes according to actual needs without limitation.
Further, the linear fixing device 4 includes a linear guide rail and a first sliding mechanism, and the first sliding mechanism is mounted on the linear guide rail and can move on the linear guide rail. The linear fixing device 4 can also be a linear module commonly used in the prior art, and the first sliding mechanism can be an electric sliding block, a pneumatic sliding block, and the like, without limitation. When the linear fixing device is used specifically, the length of the linear fixing device 4 can be designed to be 1m, and a constant distance of 5cm is kept between the linear fixing device and the GIL pipeline 1 to be measured, and the linear fixing device is not limited specifically. The rapping device 5 may be detachably fixed to the first slider mechanism.
Further, the circular fixing device 8 includes a circular guide rail and a second sliding mechanism mounted on the circular guide rail to be movable on the circular guide rail. The annular fixing device 8 may be an annular guide rail slider mechanism commonly used in the prior art, and the second sliding mechanism may also be an electric slider, a pneumatic slider, or the like, which is not limited in particular. When the annular fixing device 8 is specifically designed, the inner diameter of the annular fixing device can be designed to be 10cm larger than the outer diameter of the GIL pipeline 1 to be measured, and the annular fixing device can be designed to be changed according to actual needs without limitation. The annular fixing means 8 can be fixedly connected to the first slider mechanism, while the striking means 5 can be detachably fixed to the second slider mechanism.
As shown in fig. 3, a GIL three-post insulator positioning method applied to the GIL three-post insulator positioning device of the first embodiment or the second embodiment includes the steps of:
s1, the knocking device 5 is driven to knock the GIL pipeline 1 to be tested once every first preset distance along the direction of the central axis of the GIL pipeline 1 to be tested through the linear fixing device 4 until the signal processing device 7 determines the axial position of the three-post insulator 2 in the GIL pipeline 1 to be tested based on the sound signal collected by the sound collecting device 6. It should be noted that, for example, the linear fixing device 4 and the annular fixing device 8 are separately and independently applied, when the step is performed, the linear fixing device 4 with a proper length and size is selected by the wire according to the structural size of the GIL pipeline to be detected, the linear fixing device 4 is connected to the GIL pipeline 1 to be detected, the knocking device 5 is connected to the linear fixing device 4 and then driven by the hole linear fixing device 4 to move, when the knocking device 5 moves for a first preset distance, knocking is performed once, an acoustic signal generated by each knocking is collected by the sound collection device 6, feature extraction is performed by the signal processing device 7, and a knocking acoustic signal at the position of the three-pillar insulator 2 is significantly different from acoustic signals at other positions, so when the signal processing device 7 processes a significantly different acoustic signal, that is, when the signal processing device 7 processes an acoustic signal with a characteristic satisfying a preset feature, the knocking position can be determined as the insulating position of the three pillars.
And S2, driving the knocking device 5 to knock once every second preset distance around the circumferential direction of the GIL pipeline 1 to be detected through the annular fixing device 8 at the determined axial position until the signal processing device 7 determines the circumferential position of each column leg of the three-column insulator 2 in the GIL pipeline 1 to be detected based on the sound signal collected by the sound collecting device 6. It should be noted that, for example, the linear fixing device 4 and the annular fixing device 8 are separately and independently applied, when this step is performed, the line selects the annular fixing device 8 with a proper size, and then fixes the annular fixing device 8 to the position where the three-post insulator 2 is axially detected, then connects the knocking device 5 to the annular fixing device 8, and drives the knocking device 5 to circumferentially move through the annular fixing device 8, and when the knocking device 5 moves by a second preset distance, knocking is performed once, and similarly, the sound signal generated by each knocking is collected by the sound collecting device 6 and processed by the signal processing device 7, and the knocking sound signal at the post-leg position of the three-post insulator 2 can be significantly different from other positions, and similarly, the post-leg position of the three-post insulator 2 can be determined after the processing and the judgment are performed by the signal processing device 7.
Further, the first preset distance and the second preset distance are 10cm. Of course, the first preset distance and the second preset distance may also be other values, and the design may be changed according to actual needs, without limitation.
While the positioning apparatus and method for a GIL three-post insulator provided by the present application have been described in detail, for those skilled in the art, according to the concepts of the embodiments of the present application, the detailed implementation and the application scope may be changed, and in summary, the content of the present application should not be construed as limiting the present application.
Claims (10)
1. A GIL three-post insulator positioning device is characterized by comprising a linear fixing device (4), an annular fixing device (8), a knocking device (5), a sound collecting device (6) and a signal processing device (7);
the knocking device (5) can provide impact force with adjustable size and is used for knocking the GIL pipeline (1) to be detected to generate an acoustic signal;
the annular fixing device (8) is wrapped around the GIL pipeline (1) to be tested, the central axis of the annular fixing device is overlapped with the central axis of the GIL pipeline, and the annular fixing device is used for driving the knocking device (5) to move circumferentially around the GIL pipeline (1) to be tested so as to generate acoustic signals excited at different circumferential positions;
the linear fixing device (4) is arranged in parallel to the central axis of the GIL pipeline (1) to be detected and keeps a constant distance with the GIL pipeline (1) to be detected;
the linear fixing device (4) is used for driving the knocking device (5) to move along the direction of the central axis of the GIL pipeline (1) to be tested so as to generate acoustic signals excited at different axial positions;
the sound acquisition device (6) is used for acquiring a sound signal generated when the knocking device (5) knocks the GIL pipeline (1) to be detected;
the signal processing device (7) is electrically connected with the sound acquisition device (6).
2. The GIL three post insulator positioning device according to claim 1, wherein said knocking means (5) is detachably mounted to said linear fixture (4) or said circular fixture (8).
3. The GIL three post insulator positioning device according to claim 1, wherein said knocking means (5) is mounted on said annular fixing means (8);
the linear fixing device (4) is connected with the annular fixing device (8) and used for driving the annular fixing device (8) to move along the direction of the central axis of the GIL pipeline (1) to be tested so as to drive the knocking device (5) to move along the direction of the central axis of the GIL pipeline (1) to be tested.
4. The GIL three post insulator positioning device according to claim 1, wherein said striking means (5) is a hammer.
5. The GIL three post insulator positioning device according to claim 4, wherein the knocking end of said knocking hammer is made of stainless steel material.
6. The GIL three post insulator positioning device according to claim 1, wherein said sound pick-up means (6) is a microphone and the response frequency is 3.15 Hz-20 kHz.
7. The GIL three post insulator positioning device according to claim 6, wherein said linear fixture (4) comprises a linear guide and a first sliding mechanism;
the first sliding mechanism is installed on the linear guide rail and can move on the linear guide rail.
8. The GIL three post insulator positioning device according to claim 1, wherein said annular fixture (8) comprises an annular guide rail and a second sliding mechanism;
the second sliding mechanism is mounted on the annular guide rail and can move on the annular guide rail.
9. A GIL three post insulator positioning method applied to the GIL three post insulator positioning apparatus according to any one of claims 1 to 8, comprising the steps of:
the knocking device (5) is driven to knock the GIL pipeline (1) to be tested once every a first preset distance along the direction of the central axis of the GIL pipeline (1) to be tested through the linear fixing device (4) until the signal processing device (7) determines the axial position of the three-column insulator (2) in the GIL pipeline (1) to be tested based on the sound signal collected by the sound collecting device (6);
the knocking device (5) is driven to knock once every second preset distance along the circumferential direction of the GIL pipeline (1) to be tested through the determined annular fixing device (8) in the axial position until the signal processing device (7) determines the circumferential positions of all column legs of the three-column insulator (2) in the GIL pipeline (1) to be tested based on the sound signals collected by the sound collecting device (6).
10. The method of claim 9, wherein the first predetermined distance and the second predetermined distance are 10cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211595379.6A CN115854943A (en) | 2022-12-13 | 2022-12-13 | GIL three-post insulator positioning device and method |
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| CN202211595379.6A CN115854943A (en) | 2022-12-13 | 2022-12-13 | GIL three-post insulator positioning device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117028875A (en) * | 2023-10-09 | 2023-11-10 | 山东东信塑胶科技有限公司 | Acoustic flow velocity positioning intelligent pipe network system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117028875A (en) * | 2023-10-09 | 2023-11-10 | 山东东信塑胶科技有限公司 | Acoustic flow velocity positioning intelligent pipe network system |
| CN117028875B (en) * | 2023-10-09 | 2024-02-06 | 山东东信塑胶科技有限公司 | Acoustic flow velocity positioning intelligent pipe network system |
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