CN212410769U - GIL puncture position recognition device - Google Patents
GIL puncture position recognition device Download PDFInfo
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- CN212410769U CN212410769U CN202021264575.1U CN202021264575U CN212410769U CN 212410769 U CN212410769 U CN 212410769U CN 202021264575 U CN202021264575 U CN 202021264575U CN 212410769 U CN212410769 U CN 212410769U
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Abstract
The utility model discloses a GIL punctures position recognition device, including location array device and signal acquisition processing apparatus, the location array device includes the array arm, is provided with sound collection sensor linear array on the leading flank of array arm, and signal acquisition processing apparatus is all connected to all sound collection sensors among the sound collection sensor linear array. The utility model discloses a sound acquisition sensor linear array carries out multichannel synchronizing signal collection, the array structure that the linearity was arranged for sound acquisition sensor also is linear law in spatial position and arranges, effectively improves the dynamic response scope of abnormal sound discernment, has effectively improved signal acquisition's interference killing feature, thereby has strengthened positioning accuracy.
Description
Technical Field
The utility model relates to a GIL punctures position recognition device belongs to GIL test field.
Background
A Gas Insulated Metal-enclosed Transmission Lines (GIL) is a high-voltage and high-current Transmission device which is Insulated by adopting SF6 Gas or SF6/N2 mixed Gas and has a shell and a conductor coaxially arranged, and has the advantages of large Transmission capacity, small Transmission loss, small occupied area, high reliability and the like, and is also called a pipeline Transmission line.
Because of a series of advantages of GIL, GIL equipment is generally applied to extra-high voltage and extra-high voltage power transmission and transformation projects of a power system, and the working field intensity borne by the GIL equipment is also generally high. Years of operational experience shows that although the GIL has high operational reliability and safety, due to various process problems encountered in the actual production, manufacture, transportation and installation processes, the related technologies have not yet reached the requirements required by design, and small insulation defects may exist in the GIL, such as metal burrs on electrodes during the manufacture process, air gaps in an insulation medium, component looseness or poor contact caused by immature technology during transportation and installation, needle-shaped protrusions, insulation aging caused by long-term full-load operation, and metal free particles which may occur, which may cause electric field distortion in the GIL during operation to different degrees, and when the GIL is operated in a slightly non-uniform electric field for a long time, a local electric field is enhanced to generate Partial Discharge (Partial Discharge, PD, partial discharge) and may develop into dangerous discharge paths, which may eventually lead to insulation damage and even breakdown.
Most of existing GIL puncture position recognition devices are as described in patent CN201811054787.4, sound signals are collected by uniformly distributed acoustic sensors, the sound signals are pre-measured, and then the puncture positions are recognized through a recognition algorithm.
SUMMERY OF THE UTILITY MODEL
The utility model provides a GIL punctures position recognition device has solved the problem that reveals among the background art.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a GIL punctures position recognition device, includes location array device and signal acquisition processing apparatus, and the location array device includes the array arm, is provided with sound acquisition sensor linear array on the leading flank of array arm, and all sound acquisition sensors in the sound acquisition sensor linear array all connect signal acquisition processing apparatus.
The positioning array device further comprises an array support, and the array arm is arranged on the array support through a rotating structure.
The array support is a telescopic support, and the array arm is arranged at the top end of the array support through a rotating structure.
The bottom end of the array bracket is provided with a tripod.
The rotating structure comprises a rotating shaft, the two ends of the rotating shaft are respectively connected with the array arm and the array support in a rotating mode, and an array arm limiting structure is arranged at one end, close to the array arm, of the rotating shaft.
Array arm limit structure is including setting up the epaxial plate body in the pivot, and the upper end of plate body is higher than array arm upside, and the both sides of plate body upper end are provided with fixed dog respectively and match from restoring to the throne movable dog, and fixed dog matches from the interval between the movable dog that restores to the throne and array arm width, and the lower extreme of plate body is less than array arm downside, and one side of plate body lower extreme is provided with from restoring to the throne movable dog, and the plate body lower extreme is relative from restoring to the throne movable dog with the plate body upper end to interval and array arm width match between.
The rotating shaft is connected with the center of the array arm in a rotating way.
The rear side surface of the array arm is provided with a wire groove, the sound collection sensor is connected with a cable, and the cable is led out from the center of the array arm through the wire groove and is connected with a signal collection processing device.
The utility model discloses the beneficial effect who reaches: the utility model discloses a sound acquisition sensor linear array carries out multichannel synchronizing signal collection, the array structure that the linearity was arranged for sound acquisition sensor also is linear law in spatial position and arranges, effectively improves the dynamic response scope of abnormal sound discernment, has effectively improved signal acquisition's interference killing feature, thereby has strengthened positioning accuracy.
Drawings
FIG. 1 is a schematic structural diagram of the device of the present invention;
FIG. 2 is a schematic diagram of a positioning array device;
FIG. 3 is a schematic rear side view of an array arm;
fig. 4 is a schematic structural view of a rotary structure.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, a GIL breakdown position recognition apparatus includes a positioning recognition apparatus 1, a plurality of positioning array apparatuses 3, and a plurality of signal acquisition processing apparatuses 2.
The positioning array device 3 is arranged at the position 2-4 m of the GIL pipe gallery, and as shown in FIG. 2, the positioning array device 3 comprises an array arm 5 and an array bracket 4.
A sound collection sensor linear array is detachably fixed on the front side face of the array arm 5, eight sound collection sensors 6 are arranged on the sound collection sensor linear array and are uniformly distributed in a linear mode, the distance between every two adjacent sound collection sensors 6 is 0.1mm, the distance between every two sound collection sensors 6 closest to the center of the array arm 5 and the center of the array arm 5 is 0.05m, the sound collection sensors 6 are 1/4-inch capacitor microphones, the sensitivity is 50mv/Pa, and the highest test sound pressure level is 126 dB.
As shown in fig. 3, a wire slot 9 is opened on the rear side surface of the array arm 5, the sound collection sensor 6 is connected with a cable, and the cable is led out from the center position of the array arm 5 through the wire slot 9 and connected with the signal collection processing device 2.
The array support 4 is a telescopic support, three telescopic rods are adopted, each telescopic rod can extend out 400mm to the longest, and the maximum height is 1200 mm. The bottom end of the array bracket 4 is fixed with a tripod 8, and the stability of the positioning array device 3 is ensured through the tripod 8.
Array arm limit structure is including fixing the plate body 11 in pivot 10, the upper end of plate body 11 is higher than 5 upsides of array arm, the both sides of plate body 11 upper end are provided with fixed stop 13 respectively and from the activity dog 12 that restores to the throne, fixed stop 13 matches with 5 width in array arm from the interval between the activity dog 12 that restores to the throne, the lower extreme of plate body 11 is less than 5 downside in array arm, one side of plate body 11 lower extreme is provided with from the activity dog 12 that restores to the throne, the activity dog 12 that restores to the throne of plate body 11 lower extreme is relative with the activity dog 12 that restores to the throne of plate body 11 upper end.
The self-reset movable stop block 12 comprises a stop block, the stop block is embedded into a notch of the plate body 11, a spring is arranged between the stop block and the bottom of the notch, the spring of the stop block is pressed downwards to contract, the stop block is completely embedded into the notch, pressure is removed, and the stop block resets under the action of the spring. When the array arm 5 is horizontal, the two self-resetting movable check blocks 12 limit the rotation of the array arm 5, the two self-resetting movable check blocks 12 are pressed, the array arm 5 can only rotate 90 degrees clockwise to reach a vertical state, and at the moment, the fixed check block 13 at the upper end of the plate body 11 and the self-resetting movable check blocks 12 limit the rotation of the array arm 5. The array arm 5 can realize the adjustment in the horizontal direction and the vertical direction through the structure, and can realize the signal acquisition in multiple directions.
The signal acquisition processing device 2 corresponds to the positioning array device 3 one by one, namely, one positioning array device 3 is connected with one signal acquisition processing device 2, the signal acquisition processing device 2 synchronously acquires breakdown signals through an acquisition sensor linear array and preprocesses the breakdown signals (consistent with the existing method, which is not described in detail here), the preprocessed signals are sent to the positioning identification device 1, the positioning identification device 1 is generally a computer, the breakdown positions are identified through a built-in identification algorithm, and the signals preprocessed by all the signal acquisition processing devices 2 are sent to the positioning identification device 1 for positioning identification.
The utility model adopts the linear array of the sound collection sensor to collect multi-path synchronous signals, and the linear arrangement array structure ensures that the sound collection sensor 6 is also arranged in a linear rule in the space position, effectively improves the dynamic response range of abnormal sound identification, and effectively improves the anti-interference capability of signal collection, thereby enhancing the positioning precision; and simultaneously the utility model discloses can dismantle flexible integrated configuration, the convenience test is used, and the tester can arrange according to the test range is nimble.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (8)
1. The utility model provides a GIL punctures position recognition device, includes location array device and signal acquisition processing apparatus, its characterized in that: the positioning array device comprises an array arm, a sound acquisition sensor linear array is arranged on the front side surface of the array arm, and all sound acquisition sensors in the sound acquisition sensor linear array are connected with the signal acquisition processing device.
2. The GIL breakdown location identification device of claim 1, wherein: the positioning array device further comprises an array support, and the array arm is arranged on the array support through a rotating structure.
3. The GIL breakdown location identification device of claim 2, wherein: the array support is a telescopic support, and the array arm is arranged at the top end of the array support through a rotating structure.
4. The GIL breakdown location identification device of claim 2, wherein: the bottom end of the array bracket is provided with a tripod.
5. The GIL breakdown location identification device of claim 2, wherein: the rotating structure comprises a rotating shaft, the two ends of the rotating shaft are respectively connected with the array arm and the array support in a rotating mode, and an array arm limiting structure is arranged at one end, close to the array arm, of the rotating shaft.
6. The GIL breakdown location identification device as claimed in claim 5, wherein: array arm limit structure is including setting up the epaxial plate body in the pivot, and the upper end of plate body is higher than array arm upside, and the both sides of plate body upper end are provided with fixed dog respectively and match from restoring to the throne movable dog, and fixed dog matches from the interval between the movable dog that restores to the throne and array arm width, and the lower extreme of plate body is less than array arm downside, and one side of plate body lower extreme is provided with from restoring to the throne movable dog, and the plate body lower extreme is relative from restoring to the throne movable dog with the plate body upper end to interval and array arm width match between.
7. The GIL breakdown location identification device as claimed in claim 5, wherein: the rotating shaft is connected with the center of the array arm in a rotating way.
8. The GIL breakdown location identification device of claim 1, wherein: the rear side surface of the array arm is provided with a wire groove, the sound collection sensor is connected with a cable, and the cable is led out from the center of the array arm through the wire groove and is connected with a signal collection processing device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021264575.1U CN212410769U (en) | 2020-07-02 | 2020-07-02 | GIL puncture position recognition device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021264575.1U CN212410769U (en) | 2020-07-02 | 2020-07-02 | GIL puncture position recognition device |
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| CN212410769U true CN212410769U (en) | 2021-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856225A (en) * | 2020-07-02 | 2020-10-30 | 国网江苏省电力有限公司电力科学研究院 | GIL (Gate in L) breakdown position identification device and method |
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- 2020-07-02 CN CN202021264575.1U patent/CN212410769U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111856225A (en) * | 2020-07-02 | 2020-10-30 | 国网江苏省电力有限公司电力科学研究院 | GIL (Gate in L) breakdown position identification device and method |
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