Self-suction type GIS internal foreign matter excitation device with adjustable frequency and force
By designing a self-priming GIS internal foreign body excitation device with adjustable frequency and force, the vibration excitation problem in the horizontal position of the outer wall of the GIS device and above is solved, and the advance detection of latent foreign matter is realized, avoiding the risk of insulation breakdown within the equipment, and improving the comprehensiveness and reliability of the detection.
Patent Information
- Application Number
- CN202510510394.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2025-07-25
AI Technical Summary
In the prior art, it is difficult to detect metal particles inside the GIS equipment, especially the parts above the horizontal position of the outer wall are difficult to vibrate and stimulate, which makes it difficult to detect latent foreign objects in the equipment in advance, which may cause problems such as insulation breakdown.
A self-priming GIS internal foreign body excitation device with adjustable frequency and force is designed, including an electromagnetic actuation assembly, a clamping assembly, a housing, a control unit and a counterweight block. By controlling the voltage amplitude and frequency parameters, vibration excitation is realized at the horizontal position of the outer wall of the GIS device and above. The combination of the clamping assembly and the electromagnetic actuation assembly can achieve advanced detection of foreign matter.
It realizes effective vibration excitation at the horizontal position and above of the outer wall of the GIS device, and can detect latent foreign objects during the pressure resistance and local release test stages, avoid internal insulation breakdown of the equipment, and improves the comprehensiveness and reliability of detection.
Smart Images
Figure CN120362118A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of GIS applications, and particularly to a self - sucking GIS internal foreign object excitation device with adjustable frequency and force. Background Art
[0002] Ultrasonic partial discharge is sensitive to the detection of metal particles inside GIS equipment. Due to the different sizes and shapes of the particles inside the GIS equipment, the jumping characteristics of some particles are not obvious without external vibration. During the withstand voltage test of the expansion project of the 750 - kV Ningxia Shapotou Substation, ultrasonic partial discharge detection found metal particles, and after vibrating with a rubber hammer, many places showed obvious free - particle characteristics, indicating that external vibration excitation can effectively stimulate internal foreign - object particles.
[0003] In addition, the excitation devices in the prior art can only vibrate and excite the parts below the horizontal position of the outer wall of the GIS equipment, and cannot vibrate and excite the parts at the horizontal position and above the horizontal position of the outer wall of the GIS equipment. Summary of the Invention
[0004] To solve the deficiencies in the prior art, the present invention provides a self - sucking GIS internal foreign object excitation device with adjustable frequency and force.
[0005] The present invention adopts the following technical solutions:
[0006] A self - sucking GIS internal foreign object excitation device with adjustable frequency and force, comprising: an electromagnetic actuation component, a clamping component, a housing, a control unit, and a counterweight; a control unit is arranged at the top of the housing, a cavity is opened inside the housing, the clamping component is arranged in the cavity, the electromagnetic actuation component is fixedly connected inside the clamping component, and a counterweight can be connected below the clamping component; the clamping component includes: a guide member, a clamping component one, a stop member one, a clamping component two, and a connecting and supporting member; the clamping component one and the clamping component two are mirror - symmetrically arranged on the lower surfaces of the left and right ends of the connecting and supporting member, the stop member one is mirror - symmetrically arranged at the outer center of the clamping component one and the clamping component two, and the guide member is fixedly arranged at the central position of the upper side of the connecting and supporting member; the clamping component one and the clamping component two are exactly the same.
[0007] According to the self - sucking GIS internal foreign object excitation device with adjustable frequency and force, a guide hole is penetrated and opened at the central position of one end of the housing, stop notches one and two are mirror - symmetrically opened on the side wall of the housing, the stop notch one and the stop notch two are arranged staggeredly, and a moving hole is opened at the central position of the top of the housing.
[0008] According to the self - sucking GIS internal foreign object excitation device with adjustable frequency and force, two pairs of stop control holes are mirror - symmetrically opened inside the top of the housing.
[0009] According to the frequency and force adjustable self - suction type GIS internal foreign object excitation device, a pair of connecting blocks are arranged in a mirror image manner at the top of the counterweight block. A protrusion one extending outward is arranged at the top end of the connecting block, and a pair of stopper pieces two are arranged in a mirror image manner on the side wall of the counterweight block.
[0010] According to the frequency and force adjustable self - suction type GIS internal foreign object excitation device, the clamping component one includes: a square support piece, an adaptive adjustment device, a pulling hook, an elastic piece and a rotation center; an adaptive adjustment device and a pulling hook are arranged in a mirror image manner inside the square support piece. The pulling hook is fixedly arranged at the bottom of the adaptive adjustment device. The rotation center is rotatably arranged at the connection of the adaptive adjustment device and the pulling hook, and the bottom of the rotation center is rotatably inserted into the square support piece. A fixing hole is mirror - image opened on the inner side of one end of the adaptive adjustment device close to the pulling hook, and both ends of the elastic piece are inserted into the fixing hole and fixed to the adaptive adjustment device.
[0011] According to the frequency and force adjustable self - suction type GIS internal foreign object excitation device, the connecting blocks can be clamped between a pair of pulling hooks. One end of the guiding piece far from the outer shell is connected to the motor, and the movement of the clamping component is controlled by the motor.
[0012] According to the frequency and force adjustable self - suction type GIS internal foreign object excitation device, the stopper piece one is arranged in the stop notch one, and the stopper piece two is arranged in the stop notch two.
[0013] According to the frequency and force adjustable self - suction type GIS internal foreign object excitation device, the end of the pulling hook is set at a certain inclination angle; the lower surface of the protrusion one of the connecting block and the upper surface of the end of the pulling hook are both flatly set; the upper surface of the protrusion one of the connecting block and the lower surface of the end of the pulling hook are both smoothly set.
[0014] According to the frequency and force adjustable self - suction type GIS internal foreign object excitation device, a concave protrusion two is arranged at the bottom of the counterweight block.
[0015] According to the frequency and force adjustable self - suction type GIS internal foreign object excitation device, the above - mentioned control unit controls the frequency and force of the electromagnetic actuation component by adjusting the voltage amplitude and frequency parameters.
[0016] Compared with the prior art, the beneficial effects of the present invention at least include:
[0017] 1. The clamping component designed in the present invention enables the device to not only perform vibration excitation on the part below the horizontal position of the outer wall of the GIS device, but also perform vibration excitation on the horizontal position and the part above the horizontal position of the outer wall of the GIS device.
[0018] 2. The control unit of the present invention controls the driving force and impact frequency of the electromagnetic actuating assembly by controlling the amplitude and frequency of the voltage;
[0019] 3. The present invention can detect latent foreign particles in advance during the withstand voltage and partial discharge test stages, avoid particle jumping caused by later equipment vibration, and avoid the occurrence of internal insulation breakdown of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic perspective view of the overall structure of the present invention;
[0021] Figure 2 is a sectional view of the overall three-dimensional structure of the present invention;
[0022] Figure 3 is a schematic perspective view of the clamping assembly of the present invention;
[0023] Figure 4 is a schematic perspective view of the first clamping component of the present invention;
[0024] Figure 5 is a schematic perspective view of the housing of the present invention;
[0025] In the figure: 1. Electromagnetic actuating assembly; 2. Clamping assembly; 3. Housing; 4. Control unit; 8. Movable hole; 22. Guide hole; 23. Second stop notch; 24. First stop notch; 25. Stop control hole; 26. Guide member; 27. First clamping component; 28. Connecting block; 29. Counterweight; 30. First stop member; 31. Second clamping component; 32. Connecting and supporting member; 33. Square supporting member; 34. Adaptive adjustment device; 35. Pulling member; 36. Elastic member; 37. Second stop member; 38. Rotation center. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described in this application are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the spirit of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "front", "rear", "inner", "outer", "right", "left", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] As Figures 1-5 shown, the present invention provides a self-priming GIS internal foreign object excitation device with adjustable frequency and force, comprising: an electromagnetic actuation component 1, a clamping component 2, a housing 3, a control unit 4, and a counterweight 29; the control unit 4 is arranged at the top of the housing 3, a cavity is opened inside the housing 3, the clamping component 2 is arranged in the cavity, the electromagnetic actuation component 1 is fixedly connected inside the clamping component 2, and the counterweight 29 is arranged in a connectable manner below the clamping component 2.
[0030] As Figure 5 shown, a guiding hole 22 is penetrated and opened at the central position of one end of the housing 3, a first position-limiting notch 24 and a second position-limiting notch 23 are mirror-symmetrically opened on the side wall of the housing 3, the first position-limiting notch 24 and the second position-limiting notch 23 are arranged staggeredly, a movable hole 8 is opened at the central position of the top of the housing 3, and two pairs of position-limiting control holes 25 are mirror-symmetrically opened on the inner side of one end of the housing 3 where the movable hole 8 is opened.
[0031] As Figure 3 shown, the clamping component 2 comprises: a guiding member 26, a first clamping component 27, a first stop member 30, a second clamping component 31, and a connecting and supporting member 32; the first clamping component 27 and the second clamping component 31 are mirror-symmetrically arranged on the lower surfaces of the left and right ends of the connecting and supporting member 32, the first stop member 30 is mirror-symmetrically arranged at the central positions on the outer sides of the first clamping component 27 and the second clamping component 31, the guiding member 26 is fixedly arranged at the central position of the upper side surface of the connecting and supporting member 32, and the first clamping component 27 and the second clamping component 31 are exactly the same.
[0032] As Figure 3As shown, a pair of connecting blocks 28 are arranged in a mirror image on the top of the counterweight block 29, and a pair of second stoppers 37 are arranged in a mirror image on the side wall of the counterweight block 29.
[0033] An electromagnetic actuation assembly 1 is fixedly connected to the center position of the lower surface of the connection support member 32.
[0034] As Figure 4 shown, the first clamping assembly 27 includes: a square support member 33, an adaptive adjustment device 34, a pulling member 35, an elastic member 36 and a rotation center 38; chamfers are provided at the four corners of the square support member 33, and the adaptive adjustment device 34 and the pulling member 35 are arranged in a mirror image inside the square support member 33. The pulling member 35 is fixedly arranged at the bottom of the adaptive adjustment device 34. The rotation center 38 is rotatably arranged at the connection of the adaptive adjustment device 34 and the pulling member 35, and the bottom of the rotation center 38 is rotatably inserted into the square support member 33. Fixing holes are mirror-image opened on the inner side of one end of the adaptive adjustment device 34 close to the pulling member 35. Both ends of the elastic member 36 are inserted into the fixing holes and fixed to the adaptive adjustment device 34. The connecting blocks 28 can be clamped between the pair of pulling members 35. One end of the connecting block 28 away from the pulling member 35 is fixedly connected to the counterweight block 29. One end of the guiding member 26 away from the housing 3 is connected to the motor, and the movement of the clamping assembly 2 is controlled by the motor.
[0035] As Figure 1 shown, the first stopper 30 is arranged in the first stop notch 24, and the second stopper 37 is arranged in the second stop notch 23.
[0036] The end of the pulling member 35 is provided with a certain inclination angle. The top end of the connecting block 28 is provided with a protruding portion 1 extending outwards. The lower surface of the protruding portion 1 and the upper surface of the end of the pulling member 35 are both flatly arranged. Therefore, by engaging the upper surface of the end of the pulling member 35 with the lower surface of the protruding portion 1 at the top end of the connecting block 28, the movement of the counterweight block 29 can be controlled smoothly and firmly. Moreover, the pulling member 35 and the connecting block 28 are both arranged in a mirror image, so the smoothness of the clamping assembly 2 controlling the movement of the counterweight block 29 is further improved. And the first stopper 30 is movably arranged in the first stop notch 24, so the smoothness of the movement of the clamping assembly 2 is ensured. When the adaptive adjustment device 34 moves away from the movable hole 22, the head of the adaptive adjustment device 34 can enter the stop control hole 25. The stop control hole 25 is obliquely arranged, and the inclination angle in the stop control hole 25 is the same as the inclination angle of the adaptive adjustment device 34. Therefore, the head of the adaptive adjustment device 34 moving towards the movable hole 8 can be pressed and guided through the stop control hole 25, so that the adaptive adjustment device 34 and the pulling member 35 rotate around the rotation center 38. When rotating, the distance between the ends of the mirror-image arranged pulling members 35 increases. At this time, the counterweight block 29 is separated from the ends of the pulling members 35. At this time, the control unit 4 can control the electromagnetic actuation assembly 1 to work and eject the counterweight block 29.
[0037] Since the stopper one 30 is arranged in the stop notch one 24 and the stopper two 37 is arranged in the stop notch two 23, the counterweight 29 will only move along the stop notch two 23 and will not rotate, which is convenient for the clamping assembly 2 to pick up the counterweight 29 next time. When the guide 26 controls the clamping assembly 2 to approach the counterweight 29 again, the lower surface of the end of the pulling member 35 contacts the upper surface of the first protrusion of the connecting block 28. The upper surface of the first protrusion of the connecting block 28 is smoothly arranged, and the lower surface of the end of the pulling member 35 is also smoothly arranged. Therefore, the pulling member 35 will quickly rotate around the rotation center 38 under the blocking of the first protrusion of the connecting block 28 and move to the lower side of the first protrusion of the connecting block 28. After passing through the upper surface of the first protrusion of the connecting block 28, the pressing force between the connecting block 28 and the pulling member 35 decreases. At this time, under the driving of the restoring force of the elastic member 36, the distance between the mirror-arranged pulling members 35 decreases. Furthermore, when the pulling member 35 moves, it can smoothly contact the lower surface of the first protrusion of the connecting block 28 through the smoothly arranged upper surface of the pulling member 35, and then the connecting block 28 controls the movement of the counterweight 29 again.
[0038] The bottom of the counterweight 29 is provided with an inwardly concave second protrusion. The diameter of the second protrusion is smaller than the diameter of the main body of the counterweight 29. The diameter of the main body of the counterweight 29 is smaller than the diameter of the inner cavity of the housing 3 and larger than the diameter of the guide hole 22, preventing the counterweight 29 from falling off from the inner cavity of the housing 3. The diameter of the second protrusion is smaller than the diameter of the guide hole 22, which is convenient for protruding from the guide hole 22 to vibrate and excite the outer wall of the GIS device.
[0039] When the entire device is located below the horizontal position of the outer wall of the GIS device, the control unit 4 controls the motor to make the clamping assembly 2 at the top of the inner cavity of the housing 3. At this time, the distance of the end of the pulling member 35 is at the maximum position, and the pulling member 35 is separated from the connecting block 28. The control unit 4 controls the electromagnetic actuation assembly 1 to impact the counterweight 29, and then the configured block 29 impacts the outer wall of the GIS for vibration excitation. The counterweight 29 will return to its position under the action of gravity for the next vibration excitation;
[0040] When the entire device is located at the horizontal position of the outer wall of the GIS device and above the horizontal position, the control unit 4 controls the clamping assembly 2 to pick up the counterweight 29 and move towards the electromagnetic actuation assembly 1 through the motor. When it moves to the top, the distance of the end of the pulling member 35 is at the maximum position, and the pulling member 35 is separated from the connecting block 28. At this time, the control unit 4 controls the electromagnetic actuation assembly 1 to impact the counterweight 29, and then the configured block 29 impacts the outer wall of the GIS for vibration excitation. After that, the control unit 4 controls the clamping assembly 2 to pick up the counterweight 29 and move towards the electromagnetic actuation assembly 1 through the motor again for the next vibration excitation.
[0041] The above control unit 4 controls the frequency and force of the electromagnetic actuation assembly 1 by adjusting the voltage amplitude and frequency parameters.
[0042] In another embodiment, the electromagnetic actuation assembly 1 includes an electromagnet for attracting the counterweight 29. When the pulling member 35 moves the counterweight 29 to the topmost position of the inner cavity of the housing 3 and separates from the connecting block 28, the electromagnet is energized to attract and hold the counterweight 29, and then after the electromagnet is de-energized, the counterweight 29 is ejected.
[0043] In another embodiment, the frequency and force of the foreign object excitation device can be adjusted by changing the materials of the housing 3, the counterweight 29, and the striking rod of the electromagnetic actuation assembly 1.
[0044] This device excites foreign object particles on the inner wall of the gas chamber in different X, Y, and Z axes. Before the pressure withstand test, it is fixed to the outside of the cylinder at a rate of 1 per meter of the gas chamber, which can prevent the position from shifting after multiple vibration excitations and thus affect the external impact vibration excitation effect. Multiple foreign object excitation devices are uniformly adjusted and controlled by the background and can be deployed at the bottom and side of the cylinder to cooperate with the pressure withstand and partial discharge tests to excite foreign objects. The number of the multiple foreign object excitation devices can be 10 - 50.
[0045] Compared with the prior art, the beneficial effects of the present invention at least include:
[0046] 1. The clamping assembly designed in the present invention enables the device to not only perform vibration excitation on the parts below the horizontal position of the outer wall of the GIS device, but also perform vibration excitation on the horizontal position and the parts above the horizontal position of the outer wall of the GIS device.
[0047] 2. The control unit of the present invention controls the driving force and impact frequency of the electromagnetic actuation assembly by controlling the amplitude and frequency of the voltage.
[0048] 3. Detect latent foreign object particles in advance during the pressure withstand and partial discharge test stages, avoid particle jumping caused by equipment vibration in the later stage, and avoid the occurrence of internal insulation breakdown of the equipment.
[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent replacements can still be made to the specific embodiments of the present invention, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the protection scope of the claims of the present invention.
Claims
1. Self-priming GIS internal foreign object excitation device with adjustable frequency and force, comprising: An electromagnetic actuation component (1), a clamping component (2), a housing (3), a control unit (4), and a counterweight (29); characterized in that: The control unit (4) is provided at the top of the housing (3). A cavity is formed inside the housing (3). The clamping component (2) is disposed inside the cavity. The electromagnetic actuation component (1) is fixedly connected inside the clamping component (2). A counterweight (29) is disposed in a connectable manner below the clamping component (2); The clamping component (2) includes: a guide member (26), a first clamping component (27), a first stopper (30), a second clamping component (31), and a connection support member (32); The first clamping component (27) and the second clamping component (31) are mirror-symmetrically disposed on the lower surfaces of the left and right ends of the connection support member (32). The first stoppers (30) are mirror-symmetrically disposed at the outer centers of the first clamping component (27) and the second clamping component (31). The guide member (26) is fixedly disposed at the central position of the upper side surface of the connection support member (32); The first clamping component (27) and the second clamping component (31) are exactly the same.
2. The self-priming GIS internal foreign object excitation device with adjustable frequency and force according to claim 1, characterized in that: A guide hole (22) is penetrated and opened at the central position of one end of the housing (3). A first stop notch (24) and a second stop notch (23) are mirror-symmetrically opened on the side wall of the housing (3). The first stop notch (24) and the second stop notch (23) are arranged in an alternating manner. An activity hole (8) is opened at the central position of the top of the housing (3).
3. The self-priming GIS internal foreign object excitation device with adjustable frequency and force according to claim 1, characterized in that: Two pairs of stop control holes (25) are mirror-symmetrically opened inside the top of the housing (3).
4. The self-priming GIS internal foreign object excitation device with adjustable frequency and force according to claim 1, characterized in that: A pair of connection blocks (28) are mirror-symmetrically disposed on the top of the counterweight (29). A protrusion one extending outward is provided at the top end of the connection block (28). A pair of second stoppers (37) are mirror-symmetrically disposed on the side wall of the counterweight (29).
5. The self-priming GIS internal foreign object excitation device with adjustable frequency and force according to claim 1, characterized in that: The first clamping component (27) includes: a square support member (33), an adaptive adjustment device (34), a pulling member (35), an elastic member (36), and a rotation center (38); The adaptive adjustment device (34) and the pulling member (35) are mirror-symmetrically disposed inside the square support member (33). The pulling member (35) is fixedly disposed at the bottom of the adaptive adjustment device (34). The rotation center (38) is rotatably disposed at the connection of the adaptive adjustment device (34) and the pulling member (35), and the bottom of the rotation center (38) is rotatably inserted into the square support member (33). Fixing holes are mirror-symmetrically opened on the inner side of one end of the adaptive adjustment device (34) close to the pulling member (35). Both ends of the elastic member (36) are inserted into the fixing holes to be fixed to the adaptive adjustment device (34).
6. The frequency and force adjustable self - suction type GIS internal foreign object excitation device according to claim 5, characterized in that: An engagement block (28) can be clamped between a pair of pulling members (35), and one end of the guiding member (26) away from the housing (3) is connected to a motor, and the movement of the clamping assembly (2) is controlled by the motor.
7. The frequency and force adjustable self - suction type GIS internal foreign object excitation device according to claim 2, characterized in that: The first stop member (30) is arranged in the first stop notch (24), and the second stop member (37) is arranged in the second stop notch (23).
8. The frequency and force adjustable self - suction type GIS internal foreign object excitation device according to claim 5, characterized in that: The end of the pulling member (35) is provided with a certain inclination angle; The lower surface of the first protrusion of the engagement block (28) and the upper surface of the end of the pulling member (35) are both flatly arranged; The upper surface of the first protrusion of the engagement block (28) and the lower surface of the end of the pulling member (35) are both smoothly arranged.
9. The frequency and force adjustable self - suction type GIS internal foreign object excitation device according to claim 1, characterized in that: The bottom of the counterweight block (29) is provided with an inwardly concave second protrusion.
10. The frequency and force adjustable self - suction type GIS internal foreign object excitation device according to claim 1, characterized in that: The above - mentioned control unit (4) controls the frequency and force of the electromagnetic actuation assembly (1) by adjusting the voltage amplitude and frequency parameters.