CN114779024A

CN114779024A - Multi-mode mixing partial discharge test system

Info

Publication number: CN114779024A
Application number: CN202210464575.3A
Authority: CN
Inventors: 黄志彭
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-07-22

Abstract

The invention relates to a multimode mixing partial discharge test system which comprises a detection platform, wherein an adjusting assembly is arranged on the top surface of the detection platform, the top of the detection platform is also connected with a support, the top end of the support is connected with a third electric push rod, the top end of the third electric push rod is connected with a partial discharge tester body, the end part of a strip-shaped seat is connected with an end fixing plate, a reserved hole is formed in the end fixing plate in a penetrating mode, a contact type ultrasonic probe is inserted into the reserved hole, the top of the detection platform is also respectively provided with a wave collector and an extension microphone, a second electric push rod is connected to a side wing plate, a clamping block is fixedly connected to the second electric push rod, and a telescopic module is arranged between a stand and a swing arm. The invention can automatically complete the detection work of the partial discharge of the power equipment, not only can improve the detection efficiency, but also can effectively avoid the condition of electric shock hazard generated during manual detection, improve the detection safety and facilitate people to detect whether the partial discharge exists in the power equipment.

Description

Multimode mixing partial discharge test system

Technical Field

The invention relates to the technical field of discharge testing, in particular to a multi-mode mixing partial discharge testing system.

Background

The power equipment mainly comprises power generation equipment and power supply equipment, wherein the power generation equipment mainly comprises a power station boiler, a steam turbine, a gas turbine, a water turbine, a generator, a transformer and the like, and the power supply equipment mainly comprises power transmission lines, transformers, contactors and the like with various voltage grades. The discharge that occurs only in a local area in the insulator, but does not penetrate between the conductors to which the voltage is applied, may occur in the vicinity of the conductors or elsewhere, and this phenomenon is called a partial discharge. Electrical equipment insulates discharges that occur locally under the action of a sufficiently strong electric field. Such discharges are limited to causing only isolated local shorts (bridges) between the conductors without forming conductive paths. Each time, the local discharge has some influence on an insulating medium, the slight local discharge has small influence on the insulation of the power equipment, and the reduction of the insulation strength is slow; and strong partial discharge causes a rapid decrease in the dielectric strength. This is an important factor in causing insulation damage of high-voltage electric power equipment. When partial discharge occurs inside the power equipment, the partial discharge can be accompanied by vibration and electric sparks which generate impact, the discharge can corrode insulation, insulation failure is finally caused, and insulation accidents occur.

Disclosure of Invention

The invention provides a multimode mixing partial discharge test system, which solves the technical problem in the prior art.

The scheme for solving the technical problems is as follows: multimode mixing partial discharge test system, including testing platform, be equipped with adjusting part on testing platform's the top surface, testing platform's top still is connected with the pillar, the top of pillar is connected with third electric putter, third electric putter's top is connected with the partial discharge tester body, the end connection of bar seat has end fixing plate, run through on the end fixing plate and seted up the preformed hole, the preformed hole interpolation is equipped with contact ultrasonic transducer, testing platform's top still is equipped with condenser and extension microphone respectively.

On the basis of the technical scheme, the invention can be improved as follows.

Further, the adjusting part includes the base, it snatchs part and driver part to be equipped with on the base respectively, it includes the grudging post to snatch the part, the bottom of grudging post is equipped with rotates the base, it is connected with the swing arm to rotate on the grudging post, the baffle is put to the one end fixedly connected with vertical stroke that the grudging post was kept away from to the swing arm, erect and put equal fixedly connected with flank board on the terminal surface about the baffle, the bottom of putting the baffle is connected with the bottom layer board, be connected with second electric putter on the flank board, fixedly connected with grip block on the second electric putter, be equipped with flexible module between grudging post and the swing arm.

Further, flexible module includes an electric putter, an upper mounting bracket is connected with in an electric putter's top rotation, an electric putter's bottom is rotated and is connected with down the mounting bracket, just an upper mounting bracket is connected with the lateral wall of swing arm, mounting bracket fixed connection is on the lateral wall of grudging post down.

Furthermore, the rotating base comprises a second speed-reducing servo motor, a first bearing seat is fixedly sleeved on the periphery of an output shaft of the second speed-reducing servo motor, the top end of the output shaft of the second speed-reducing servo motor is connected with a rotating table, and an annular sliding block is connected to the bottom surface of the rotating table.

Furthermore, the second speed-reducing servo motor is connected with the bottom surface of the base, a first shaft hole matched with the first bearing seat is formed in the base in a penetrating mode, the first bearing seat is fixedly connected into the first shaft hole, the rotating platform is located above the base, an annular sliding cavity matched with the annular sliding block is formed in the position, corresponding to the annular sliding block, of the top surface of the base, and the bottom end of the annular sliding block is inserted into the annular sliding cavity.

Furthermore, the bottom end of the stand is fixedly connected to the top surface of the rotating table.

Further, the drive part includes two traction blocks, two the interval sets up around the traction block is, two all run through on the traction block and seted up the installing port, every all be connected with screw nut in the installing port, two screw nut's inside is inserted jointly and is equipped with rather than assorted lead screw, the front and back end of lead screw all is equipped with the supporting seat, just the lead screw rotate connect in two between the supporting seat, the first speed reduction servo motor of fixedly connected with still on the lateral wall of supporting seat, the equal interval in left and right sides of lead screw is equipped with the end fishplate bar, every all run through on the end fishplate bar and seted up the guide hole, every all insert in the guide hole and be equipped with rather than assorted horizontal guide arm.

Furthermore, two the supporting seat is fixed connection all on testing platform's top surface, first speed reduction servo motor's output shaft runs through the supporting seat of being connected and is connected with the tip of lead screw.

Furthermore, the transverse guide rod is arranged between the two supporting seats, and the end parts of the transverse guide rod are respectively connected with the corresponding supporting seats.

Further, two the bottom joint board all is connected with the bottom surface of base.

The invention has the beneficial effects that: the invention provides a multimode mixing partial discharge test system, which has the following advantages:

1. the invention can automatically complete the detection work of the partial discharge of the power equipment, not only can improve the detection efficiency, but also can effectively avoid the condition of electric shock hazard generated during manual detection, improve the detection safety and facilitate people to detect whether the partial discharge exists in the power equipment;

2. after the power equipment to be detected is placed at the top of the bottom supporting plate, the second electric push rod drives the clamping block to move transversely and clamp and fix the power equipment, the power equipment to be detected can be driven to adjust the angle through the extension and retraction of the first electric push rod, the power equipment can be driven to adjust the direction through the second speed reduction servo motor, the power equipment is driven to adjust the front and back positions through the driving part at the bottom of the base, and meanwhile, the contact type ultrasonic probe can be driven to adjust the detection height through the third electric push rod, so that the position of the power equipment can be accurately adjusted in the process of detecting the power equipment, the contact type ultrasonic probe can accurately face different positions of the power equipment to be detected, and the detection accuracy is improved;

3. when the power equipment to be detected is detected, the detection work of the power equipment can be completed by matching any one of the contact type ultrasonic probe, the wave collector or the extension microphone with the partial discharge tester body, so that the multi-mode detection of the power equipment is realized, and the detection work of workers on the power equipment is further facilitated.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic structural diagram of a multimode mixing partial discharge test system according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a side view of the multi-mode mixing partial discharge test system provided in FIG. 1;

fig. 3 is a schematic diagram of a rear side structure of the multi-mode mixing partial discharge test system provided in fig. 1.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a detection platform; 2. a base; 3. a rotating table; 4. an annular slider; 5. erecting a frame; 6. a swing arm; 7. vertically arranging a baffle; 8. a side wing panel; 9. a second electric push rod; 10. a clamping block; 11. an end fixing plate; 12. a bottom pallet; 13. a supporting seat; 14. a first deceleration servo motor; 15. a lead screw; 16. a transverse guide rod; 17. an underpinning plate; 18. a wave condenser; 19. extending the microphone; 20. a support post; 21. a third electric push rod; 22. a strip-shaped seat; 23. a partial discharge tester body; 24. a contact ultrasonic probe; 25. a traction block; 26. a lead screw nut; 27. a second deceleration servo motor; 28. mounting a frame; 29. a first electric push rod; 30. and a lower mounting rack.

Detailed Description

The principles and features of the present invention will be described with reference to the accompanying figures 1-3, which are provided as examples to illustrate the invention and not to limit the scope of the invention. The invention is more particularly described in the following paragraphs with reference to the accompanying drawings by way of example. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-3, the present invention provides a multimode mixing partial discharge test system, which comprises a detection platform 1, wherein an adjusting component is arranged on the top surface of the detection platform 1, a support column 20 is further connected to the top of the detection platform 1, a third electric push rod 21 is connected to the top end of the support column 20, a partial discharge tester body 23 is connected to the top end of the third electric push rod 21, an end fixing plate 11 is connected to the end of a strip-shaped seat 22, a preformed hole is formed in the end fixing plate 11 in a penetrating manner, a contact ultrasonic probe 24 is inserted into the preformed hole, the contact ultrasonic probe 24 is driven by the third electric push rod 21 to adjust the detection height, after being inserted into the preformed hole, the contact ultrasonic probe 24 is electrically connected to the partial discharge tester body 23 through a wire, a wave collector 18 and an extension microphone 19 are further arranged on the top of the detection platform 1, when detection is required to be performed through the wave collector 18 or the extension microphone 19, the contact type ultrasonic probe 24 in the preformed hole is taken down, the wave collector 18 or the extension microphone 19 is inserted into the preformed hole, and after the wave collector 18 or the extension microphone 19 is inserted into the preformed hole, the wave collector 18 or the extension microphone 19 is also electrically connected with the partial discharge tester body 23 through a conducting wire respectively.

Preferably, the adjusting part includes base 2, be equipped with on the base 2 respectively and snatch part and driver part, it includes grudging post 5 to snatch part, the bottom of grudging post 5 is equipped with the rotation base, it is connected with swing arm 6 to rotate on the grudging post 5, swing arm 6 keeps away from the one end fixedly connected with of grudging post 5 and erects baffle 7, erect and put equal fixedly connected with flank board 8 on the terminal surface about baffle 7, erect and put the bottom of baffle 7 and be connected with bottom plate 12, be connected with second electric putter 9 on the flank board 8, fixedly connected with grip block 10 on the second electric putter 9, place behind bottom plate 12 tops at the power equipment who will wait to detect, it is fixed to drive grip block 10 lateral motion by second electric putter 9 again and carry out the centre gripping to power equipment, be equipped with flexible module between grudging post 5 and the swing arm 6.

Preferably, the telescopic module comprises a first electric push rod 29, the top end of the first electric push rod 29 is rotatably connected with an upper mounting frame 28, the bottom end of the first electric push rod 29 is rotatably connected with a lower mounting frame 30, the upper mounting frame 28 is connected with the side wall of the swing arm 6, the lower mounting frame 30 is fixedly connected to the side wall of the stand 5, and the electric power equipment to be detected, which is clamped and fixed, can be driven to perform angle adjustment through the telescopic action of the first electric push rod 29.

Preferably, the rotating base comprises a second speed-reducing servo motor 27, a first bearing seat is fixedly sleeved on the periphery of an output shaft of the second speed-reducing servo motor 27, the top end of the output shaft of the second speed-reducing servo motor 27 is connected with a rotating table 3, and an annular sliding block 4 is connected on the bottom surface of the rotating table 3.

Preferably, the second speed-reducing servo motor 27 is connected with the bottom surface of the base 2, a first shaft hole matched with the first bearing seat is formed in the base 2 in a penetrating manner, the first bearing seat is fixedly connected in the first shaft hole, the rotating platform 3 is positioned above the base 2, an annular sliding cavity matched with the annular sliding block is formed in the position corresponding position of the top surface of the base 2 and the annular sliding block 4, the bottom end of the annular sliding block 4 is inserted into the annular sliding cavity, the rotating platform 3 is driven to rotate through the second speed-reducing servo motor 27, then the rotating platform 3 drives the electric power equipment to perform direction adjustment, in the rotating process of the rotating platform 3, the annular sliding cavity is used for limiting the movement of the annular sliding block 4, so that the rotating platform 3 cannot generate position deviation and side inclination in the rotating process, and the rotating stability of the rotating platform 3 is guaranteed.

Preferably, the bottom end of the stand 5 is fixedly connected to the top surface of the rotating table 3.

Preferably, drive part includes two traction block 25, the interval sets up around two traction block 25 are, all run through on two traction block 25 and seted up the installing port, all be connected with screw nut 26 in every installing port, two screw nut 26's inside is inserted jointly and is equipped with rather than assorted lead screw 15, the front and back end of lead screw 15 all is equipped with supporting seat 13, and lead screw 15 rotates to be connected between two supporting seat 13, still the first speed reduction servo motor 14 of fixedly connected with on the lateral wall of supporting seat 13, the equal interval in left and right sides of lead screw 15 is equipped with end fishplate bar 17, all run through on every end fishplate bar 17 and seted up the guide hole, all insert in every guide hole and be equipped with rather than assorted horizontal guide arm 16.

Preferably, two supporting seats 13 are all fixed connection on testing platform 1's top surface, and first speed reduction servo motor 14's output shaft runs through supporting seat 13 connected and is connected with the tip of lead screw 15, and it is rotatory to drive lead screw 15 through first speed reduction servo motor 14, and the position is adjusted around waiting to detect power equipment after being fixed by the centre gripping by screw nut 26 drive again.

Preferably, the transverse guide rods 16 are located between the two support seats 13, and the ends of the transverse guide rods 16 are respectively connected with the corresponding support seats 13.

Preferably, both of the base plates 17 are attached to the bottom surface of the base 2.

After the power equipment to be detected is placed at the top of the bottom support plate 12, the second electric push rod 9 drives the clamping block 10 to move transversely and clamp and fix the power equipment, the power equipment to be detected can be driven to adjust the angle through the extension of the first electric push rod 29, the power equipment can be driven to adjust the direction through the second speed-reducing servo motor 27, the power equipment is driven to adjust the front and back positions through the driving part at the bottom of the base 2, and meanwhile, the contact type ultrasonic probe 24 can be driven to adjust the detection height through the third electric push rod 21, so that the position of the power equipment can be accurately adjusted in the process of detecting the power equipment, the contact type ultrasonic probe 24 can accurately face different positions of the power equipment to be detected, and the detection accuracy is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like. Those not described in detail in this specification are well within the skill of the art.

The foregoing is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the invention in any way; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. Multimode mixing partial discharge test system, its characterized in that, including testing platform (1), be equipped with adjusting part on testing platform (1)'s the top surface, testing platform (1)'s top still is connected with pillar (20), the top of pillar (20) is connected with third electric putter (21), the top of third electric putter (21) is connected with the office and puts tester body (23), the end connection of bar seat (22) has end fixing plate (11), run through on end fixing plate (11) and seted up the preformed hole, it is equipped with contact ultrasonic probe (24) to insert in the preformed hole, testing platform (1)'s top still is equipped with respectively gathers ripples ware (18) and extension microphone (19).

2. The multimode mixer partial discharge test system of claim 1, wherein said conditioning assembly comprises a base (2), the base (2) is respectively provided with a grabbing part and a driving part, the grabbing part comprises a vertical frame (5), a rotating base is arranged at the bottom of the vertical frame (5), a swinging arm (6) is rotatably connected on the vertical frame (5), one end of the swing arm (6) far away from the vertical frame (5) is fixedly connected with a vertical baffle (7), the left end surface and the right end surface of the vertical baffle (7) are fixedly connected with side wing plates (8), the bottom end of the vertical baffle (7) is connected with a bottom supporting plate (12), the side wing plate (8) is connected with a second electric push rod (9), and a clamping block (10) is fixedly connected to the second electric push rod (9), and a telescopic module is arranged between the vertical frame (5) and the swing arm (6).

3. The multimode mixing partial discharge test system according to claim 2, wherein the telescopic module comprises a first electric push rod (29), an upper mounting frame (28) is rotatably connected to a top end of the first electric push rod (29), a lower mounting frame (30) is rotatably connected to a bottom end of the first electric push rod (29), the upper mounting frame (28) is connected with a side wall of the swing arm (6), and the lower mounting frame (30) is fixedly connected to a side wall of the vertical frame (5).

4. The multimode mixing partial discharge test system according to claim 2, wherein the rotating base comprises a second deceleration servo motor (27), a first bearing seat is fixedly sleeved on the periphery of an output shaft of the second deceleration servo motor (27), a rotating table (3) is connected to the top end of the output shaft of the second deceleration servo motor (27), and an annular sliding block (4) is connected to the bottom surface of the rotating table (3).

5. The multimode frequency mixing partial discharge test system according to claim 4, wherein the second deceleration servo motor (27) is connected to the bottom surface of the base (2), a first shaft hole matched with the first bearing seat is formed in the base (2) in a penetrating manner, the first bearing seat is fixedly connected to the first shaft hole, the rotating table (3) is located above the base (2), an annular sliding cavity matched with the annular sliding block is formed in a position corresponding to the position of the top surface of the base (2) and the annular sliding block (4), and the bottom end of the annular sliding block (4) is inserted into the annular sliding cavity.

6. The multimode mixer partial discharge test system of claim 4, wherein the bottom end of the stand (5) is fixedly connected to the top surface of the turntable (3).

7. The multimode frequency mixing partial discharge test system according to claim 2, wherein the driving member comprises two traction blocks (25), the two traction blocks (25) are arranged at a distance from each other, mounting openings are formed through the two traction blocks (25), a screw nut (26) is connected to each mounting opening, a screw (15) matched with the screw nuts (26) is commonly inserted into the two screw nuts (26), supporting seats (13) are arranged at the front and rear ends of the screw (15), the screw (15) is rotatably connected between the two supporting seats (13), a first deceleration servo motor (14) is fixedly connected to the side walls of the supporting seats (13), bottom connection plates (17) are arranged at intervals on the left and right sides of the screw (15), and guide holes are formed through each bottom connection plate (17), and a transverse guide rod (16) matched with each guide hole is inserted into each guide hole.

8. The multimode mixing partial discharge test system according to claim 7, wherein both said supports (13) are fixedly connected to the top surface of the test platform (1), and the output shaft of said first deceleration servo motor (14) passes through the connected supports (13) and is connected to the end of the lead screw (15).

9. The system according to claim 7, wherein the transverse guide rods (16) are disposed between the two supporting seats (13), and ends of the transverse guide rods (16) are respectively connected to the corresponding supporting seats (13).

10. The multimode mixer partial discharge test system of claim 7, wherein both said grounding plates (17) are connected to the bottom surface of the base (2).