A seismic isolation device for high-voltage electrical equipment in a substation

Abstract

The present invention relates to the field of seismic isolation technology, and particularly to a seismic isolation device for high-voltage electrical equipment in a substation, which includes a fixed seat, two outer support plate members, an inner support plate member, a first seismic isolation member, and a second seismic isolation member; the fixed seat is arranged below the ground surface, and both the upper and lower ends of the fixed seat are fixedly arranged; the two outer support plate members are respectively arranged at the upper and lower ends of the inner circle of the fixed seat; the inner support plate member is located between the two outer support plate members, and both the middle parts of the outer support plate members and the inner support plate member have annular cavities, an installation seat is installed in the annular cavity, a connector is inserted into the installation seat, and the connector is connected to the base of the electrical equipment; the installation seat has a first extension end and a second extension end, the first extension end and the second extension end are staggered, the first extension end is located between the outer support plate member and the inner support plate member, and the second extension end is located inside the inner support plate member; the first seismic isolation member is arranged at the first extension end, and both ends of the first seismic isolation member respectively abut against the opposite surfaces of the outer support plate member and the inner support plate member.

Description

Technical Field

[0001] The present invention relates to the technical field of seismic isolation, and particularly to a seismic isolation device for high-voltage electrical equipment in a substation. Background Art

[0002] An earthquake is a natural disaster phenomenon. Due to the complexity of the crustal structure and the non-intuitive nature of the seismic source area, earthquakes are usually unpredictable, and the occurrence of an earthquake often causes the collapse of buildings, which not only causes property losses but also threatens people's lives and safety.

[0003] In the vertical seismic isolation design of building structures, there has always been a contradiction between stable vertical bearing capacity and good seismic isolation effect. For existing vertical seismic isolation bearings, most of them cannot achieve an effective vertical seismic isolation period and obtain good seismic isolation effects, or due to large vertical static loads, they cannot meet the displacement requirements under static and seismic actions.

[0004] Many high-voltage electrical equipment in substations are exposed to the open air environment, and there is no risk of being crushed by collapsed buildings. Therefore, the stability of their fixed points with the ground surface needs to be emphasized to avoid damage to the ground surface fixed points caused by earthquake effects, resulting in the risk of collapse. Summary of the Invention

[0005] Based on this, in view of the above technical problems, it is necessary to provide a seismic isolation device for high-voltage electrical equipment in a substation, which can provide a certain effect on vertical seismic isolation while providing lateral seismic isolation buffering. The extended ends located between the outer support plate member and the inner support plate member have a certain amount of deformation, which can avoid damage to the equipment stability caused by longitudinal vibration.

[0006] The present invention provides a seismic isolation device for high-voltage electrical equipment in a substation, and the device includes:

[0007] A fixed seat, which is arranged below the ground surface, and both the upper and lower ends of the fixed seat are fixedly arranged;

[0008] Two outer support plate members, which are respectively arranged at the upper and lower ends of the inner circle of the fixed seat;

[0009] An inner support plate member, which is located between the two outer support plate members. Both the outer support plate member and the inner support plate member have an annular cavity in the middle. An installation seat is installed in the annular cavity, and a connecting head is inserted into the installation seat. The connecting head is connected to the electrical equipment base;

[0010] The installation seat has a first extended end and a second extended end, and the first extended end and the second extended end are staggered. The first extended end is located between the outer support plate member and the inner support plate member, and the second extended end is located inside the inner support plate member;

[0011] The first shock isolation member is arranged at the first protruding end, and two ends of the first shock isolation member respectively abut against opposite surfaces of the outer support plate member and the inner support plate member.

[0012] The second shock isolation member is arranged at the second protruding end, and two ends of the second shock isolation member respectively abut against opposite surfaces of the inner support plate member.

[0013] In one embodiment, the fixed seat includes a fixed tube and a fixed plate; the fixed plate is arranged in an annular plate structure, and two fixed plates are respectively sleeved at two ends of the fixed tube. The surface of the upper fixed plate is in the same plane as the ground surface, and both fixed plates are fixedly arranged through fasteners.

[0014] In one embodiment, the outer support plate member includes a first positioning plate, a first through cover and a first diagonal brace; the first positioning plate is arranged in an annular plate structure, the outer ring of the first positioning plate is connected to the inner ring of the fixed tube, and a plurality of first through covers are distributed in an annular array on the first positioning plate. The first through cover is located on the opposite sides of the two first positioning plates, and the opening faces and penetrates the first positioning plate to form a first limiting cavity. A plurality of first diagonal braces are arranged in an annular array, and two ends of the first diagonal brace are respectively connected to the inner surface of the fixed tube and the surface of the first positioning plate.

[0015] In one embodiment, the inner support plate member includes a second positioning plate and a second through cover; the second positioning plate is arranged in an annular plate structure, and two second positioning plates are located between the two first positioning plates. The outer ring of the second positioning plate is connected to the inner ring of the fixed tube, and a plurality of second through covers are distributed in an annular array on the second positioning plate. The second through cover is located between the two second positioning plates, and the opening faces and penetrates the nearest second positioning plate to form a second limiting cavity. Each second positioning cavity is directly opposite to a first positioning cavity.

[0016] In one embodiment, the inner support plate member further includes a third positioning plate. The third positioning plate is arranged in an annular plate structure and is located between the two second positioning plates. The outer ring of the third positioning plate is connected to the inner ring of the fixed tube. A plurality of through holes distributed in an annular array are formed in the third positioning plate, and the through holes are vertically offset from the first limiting cavity or the second limiting cavity.

[0017] In one embodiment, a plurality of annular blocks are provided on one side of each of the two second positioning plates facing each other. The plurality of annular blocks are distributed in an annular array. A third limiting cavity is formed between the annular blocks and the second positioning plate. The central axis of the third limiting cavity coincides with the central axis of the through hole. An activity port is formed on one side of the annular block facing the central axis of the fixed tube.

[0018] In one embodiment, the mounting seat includes a mounting tube, a first positioning tube, a first connecting rod, and a second brace; the mounting tube is located inside the inner circle of the first positioning plate. A plurality of pairs of coaxially arranged first positioning tubes are distributed in an annular array around the mounting tube and are connected to the mounting tube through the first connecting rod. Two ends of the second brace are respectively connected to the first connecting rod and the mounting tube. First bevels and second bevels are respectively provided between the inner circle and the end face of the first positioning plate and the second positioning plate for respectively abutting against the two second braces on the upper and lower sides of the first connecting rod.

[0019] In one embodiment, the mounting seat further includes a second positioning tube and a second connecting rod; the horizontal height of the second positioning tube is located between two pairs of the first positioning tubes arranged in pairs, and a plurality of the second positioning tubes are distributed in an annular array around the mounting tube and are connected to the mounting tube through the second connecting rod. One end of the second connecting rod connected to the second positioning tube is bent. The second positioning tube and the first positioning tube are alternately distributed on the radial section of the mounting tube.

[0020] In one embodiment, the first shock isolation member includes a first spring and a rubber column. The first spring is arranged inside the first positioning tube. Two ends of the first spring are respectively connected to the bottom surfaces of the first limiting cavity and the second limiting cavity. The rubber column is coated on the surface of the first spring, and the surface of the rubber column fits with the inner circle of the first positioning tube.

[0021] In one embodiment, the second shock isolation member includes a second spring and a butting plate; the second spring is arranged inside the second positioning tube. Two ends of the second spring are respectively connected to the two butting plates. The surface of the butting plate abuts against the bottom surface of the third limiting cavity.

[0022] The above-mentioned seismic isolation device for high-voltage electrical equipment in a substation connects the base of the electrical equipment to the connector and inserts the connector into the mounting seat. At this time, the first protruding end and the second protruding end of the mounting seat are staggered and located between the outer support plate member and the inner support plate member, and are respectively connected between the outer support plate member and the inner support plate member or on the opposite sides of the inner support plate member by the first seismic isolation member and the second seismic isolation member, so that the connector can horizontally shake within the range of the fixed seat when vibration occurs. The first seismic isolation member and the second seismic isolation member can effectively provide buffering. At the same time, due to the arrangement of the protruding ends in cooperation with the seismic isolation members, it can provide certain effect on vertical seismic isolation while providing lateral seismic isolation buffering. The protruding ends located between the outer support plate member and the inner support plate member have a certain amount of deformation, which can avoid damage to the stability of the equipment caused by longitudinal vibration. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 Schematic perspective view of the seismic isolation device provided by the present invention;

[0025] Figure 2 Schematic cross-sectional view of the seismic isolation device provided by the present invention;

[0026] Figure 3 Schematic structural view of the outer support plate member and the inner support plate member provided by the present invention;

[0027] Figure 4 Schematic structural view of the inner support plate member provided by the present invention;

[0028] Figure 5 Partial structural view of the mounting seat provided by the present invention;

[0029] Figure 6 Schematic structural view of the first seismic isolation member provided by the present invention;

[0030] Figure 7 Schematic structural view of the second seismic isolation member provided by the present invention.

[0031] Reference Signs:

[0032] 100, Fixed base; 110, Fixed pipe; 120, Fixed plate; 200, Outer support plate member; 210, First positioning plate; 211, First bevel angle; 220, First through cover; 221, First limiting cavity; 230, First diagonal brace; 300, Inner support plate member; 310, Second positioning plate; 311, Second bevel angle; 320, Second through cover; 321, Second limiting cavity; 330, Ring block; 331, Third limiting cavity; 332, Movable opening; 340, Third positioning plate; 341, Through hole; 400, Mounting base; 410, Mounting pipe; 421, First positioning pipe; 422, First connecting rod; 423, Second diagonal brace; 431, Second positioning pipe; 432, Second connecting rod; 500, First shock isolation member; 510, First spring; 520, Rubber column; 600, Second shock isolation member; 610, Second spring; 620, Contact plate; 700, Connector. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] The following will be combined with Figures 1 to 7 Describe the shock isolation device for high-voltage electrical equipment in a substation of the present invention.

[0035] As Figure 1 And Figure 2As shown, in one embodiment, an anti-vibration device for high-voltage electrical equipment in a substation includes a fixed seat 100, two outer support plate members 200, an inner support plate member 300, a first anti-vibration member 500, and a second anti-vibration member 600. The fixed seat 100 is arranged below the ground surface, and both the upper and lower ends of the fixed seat 100 are fixedly arranged. The two outer support plate members 200 are respectively arranged at the upper and lower ends of the inner circle of the fixed seat 100. The inner support plate member 300 is located between the two outer support plate members 200. Both the outer support plate member 200 and the inner support plate member 300 have an annular cavity in the middle. An installation seat 400 is installed in the annular cavity. A connector 700 is inserted into the installation seat 400, and the connector 700 is connected to the base of the electrical equipment. The installation seat 400 has a first extended end and a second extended end, which are staggered. The first extended end is located between the outer support plate member 200 and the inner support plate member 300, and the second extended end is located inside the inner support plate member 300. The first anti-vibration member 500 is arranged at the first extended end, and both ends of the first anti-vibration member 500 respectively abut against the opposite surfaces of the outer support plate member 200 and the inner support plate member 300. The second anti-vibration member 600 is arranged at the second extended end, and both ends of the second anti-vibration member 600 respectively abut against the opposite two surfaces of the inner support plate member 300.

[0036] For the above anti-vibration device for high-voltage electrical equipment in a substation, the base of the electrical equipment is connected to the connector 700, and the connector 700 is inserted into the installation seat 400. At this time, the first extended end and the second extended end of the installation seat 400 are staggered and are located between the outer support plate member 200 and the inner support plate member 300, and are respectively connected between the outer support plate member 200 and the inner support plate member 300 or the opposite two surfaces of the inner support plate member 300 by the first anti-vibration member 500 and the second anti-vibration member 600, so that when vibration occurs, the connector 700 can horizontally shake within the range of the fixed seat 100. The first anti-vibration member 500 and the second anti-vibration member 600 can effectively provide buffering. At the same time, due to the setting of the extended ends in cooperation with the anti-vibration members, it can play a certain role in vertical anti-vibration while providing lateral anti-vibration buffering. The extended end located between the outer support plate member 200 and the inner support plate member 300 has a certain amount of deformation, which can avoid damage to the stability of the equipment caused by longitudinal vibration.

[0037] As Figure 3 As shown, in one embodiment, the fixed seat 100 includes a fixed pipe 110 and a fixed plate 120. The fixed plate 120 is arranged in an annular plate structure. The two fixed plates 120 are respectively sleeved at both ends of the fixed pipe 110. The surface of the upper fixed plate 120 is in the same plane as the ground surface, and both fixed plates 120 are fixedly arranged through fasteners.

[0038] In one embodiment, the outer support plate member 200 includes a first positioning plate 210, a first through cover 220, and a first diagonal brace 230; the first positioning plate 210 is arranged in an annular plate-like structure, the outer ring of the first positioning plate 210 is connected to the inner ring of the fixed tube 110, a plurality of first through covers 220 are distributed in an annular array on the first positioning plate 210, the first through cover 220 is located on the opposite side of the two first positioning plates 210, and the opening faces and penetrates the first positioning plate 210 to form a first limiting cavity 221, a plurality of first diagonal braces 230 are arranged in an annular array, and the two ends of the first diagonal brace 230 are respectively connected to the inner surface of the fixed tube 110 and the surface of the first positioning plate 210.

[0039] Specifically, as Figure 4 shown, the inner support plate member 300 includes a second positioning plate 310 and a second through cover 320; the second positioning plate 310 is arranged in an annular plate-like structure, the two second positioning plates 310 are located between the two first positioning plates 210, and the outer ring of the second positioning plate 310 is connected to the inner ring of the fixed tube 110, a plurality of second through covers 320 are distributed in an annular array on the second positioning plate 310, the second through cover 320 is located between the two second positioning plates 310, and the opening faces and penetrates the nearest second positioning plate 310 to form a second limiting cavity 321, and each second positioning cavity is aligned with a first positioning cavity.

[0040] Further, the inner support plate member 300 further includes a third positioning plate 340, the third positioning plate 340 is arranged in an annular plate-like structure and is located between the two second positioning plates 310, the outer ring of the third positioning plate 340 is connected to the inner ring of the fixed tube 110, and a plurality of through holes 341 distributed in an annular array are formed on the third positioning plate 340, and the through holes 341 are vertically offset from the first limiting cavity 221 or the second limiting cavity 321.

[0041] Specifically, assuming that the first limiting cavity 221 and the second limiting cavity 321 are located at 0 degrees and 90 degrees on the horizontal section, then the third limiting cavity 331 is located at 45 degrees and 135 degrees on the horizontal section, which is a certain angle offset from each other.

[0042] In one embodiment, a plurality of annular blocks 330 are provided on the opposite surfaces of the two second positioning plates 310, the plurality of annular blocks 330 are distributed in an annular array, a third limiting cavity 331 is formed between the annular blocks 330 and the second positioning plate 310, the central axis of the third limiting cavity 331 coincides with the central axis of the through hole 341, and a movable opening 332 is formed on the side of the annular block 330 facing the central axis of the fixed tube 110.

[0043] Specifically, the movable opening 332 is provided for inserting the second connecting rod 432, and the width of the movable opening 332 is greater than that of the second connecting rod 432 to provide space for the movement of the second connecting rod 432.

[0044] like Figure 5 As shown, in one embodiment, the mounting seat 400 includes a mounting tube 410, a first positioning tube 421, a first connecting rod 422 and a second diagonal brace 423; the mounting tube 410 is located in the inner circle of the first positioning plate 210, and a plurality of pairs of coaxially arranged first positioning tubes 421 are distributed in a circular array around the mounting tube 410, and are connected to the mounting tube 410 through the first connecting rod 422, and the two ends of the second diagonal brace 423 are respectively connected to the first connecting rod 422 and the mounting tube 410, and a first bevel 211 and a second bevel 311 are respectively arranged between the inner circle and the end face of the first positioning plate 210 and the second positioning plate 310, which are used to respectively abut against the two second diagonal braces 423 on the upper and lower sides of the first connecting rod 422.

[0045] Specifically, the mounting seat 400 also includes a second positioning tube 431 and a second connecting rod 432; the horizontal height of the second positioning tube 431 is located between the two first positioning tubes 421 arranged in pairs, and multiple second positioning tubes 431 are distributed in a circular array around the mounting tube 410, and are connected to the mounting tube 410 through a second connecting rod 432. The second connecting rod 432 is connected to one end of the second positioning tube 431 and is bent. The second positioning tube 431 and the first positioning tube 421 are staggered with each other on the radial section of the mounting tube 410.

[0046] like Figure 6 As shown, in one embodiment, the first seismic isolation member 500 includes a first spring 510 and a rubber column 520. The first spring 510 is arranged in the first positioning tube 421. The two ends of the first spring 510 are respectively connected to the bottom surfaces of the first limiting cavity 221 and the second limiting cavity 321. The rubber column 520 is coated on the surface of the first spring 510, and the surface of the rubber column 520 is in contact with the inner ring of the first positioning tube 421.

[0047] Specifically, the first spring 510 cooperates with the rubber column 520 covering the surface of the first spring 510 , so that the first positioning tube 421 will eventually be pulled back to its original position by the first spring 510 and the rubber column 520 no matter which direction it moves.

[0048] like Figure 7 As shown, in one embodiment, the second seismic isolation member 600 includes a second spring 610 and an abutment plate 620; the second spring 610 is arranged in the second positioning tube 431, and the two ends of the second spring 610 are respectively connected to two abutment plates 620, and the surface of the abutment plate 620 abuts against the bottom surface of the third limiting cavity 331.

[0049] Specifically, in order to achieve seismic isolation and buffering, damping members can be provided at the edges of the first positioning tube 421 and the second positioning tube 431, and the other ends of the damping members are obliquely arranged and connected to the first positioning plate 210, the second positioning plate 310 or the third positioning plate 340. Centered on the first positioning tube 421 or the second positioning tube 431, a plurality of damping members are arranged in a fork shape.

[0050] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0051] The above-described embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An anti-seismic device for high-voltage electrical equipment in a substation, characterized in that The device includes: A fixed seat, which is arranged below the ground surface, and both the upper and lower ends of the fixed seat are fixedly arranged; Two outer support plate members, which are respectively arranged at the upper and lower ends of the inner circle of the fixed seat; the outer support plate member includes a first positioning plate and a first through cover; the first positioning plate is arranged in an annular plate structure, and a plurality of the first through covers are distributed in an annular array on the first positioning plate. The first through cover is located on the side opposite to the two first positioning plates, and the opening faces and penetrates the first positioning plate to form a first limiting cavity; An inner support plate member, which is located between the two outer support plate members. Both the outer support plate member and the inner support plate member have an annular cavity in the middle. An installation seat is installed in the annular cavity, and a connecting head is inserted into the installation seat. The connecting head is connected to the base of the electrical equipment; the inner support plate member includes a second positioning plate and a second through cover; the second positioning plate is arranged in an annular plate structure, and the two second positioning plates are located between the two first positioning plates. A plurality of the second through covers are distributed in an annular array on the second positioning plate. The second through cover is located between the two second positioning plates, and the opening faces and penetrates the nearest second positioning plate to form a second limiting cavity, and each second limiting cavity is opposite to a first limiting cavity; The inner support plate member further includes a third positioning plate, which is arranged in an annular plate structure and is located between the two second positioning plates. A plurality of through holes distributed in an annular array are formed on the third positioning plate, and the through holes are vertically staggered with the first limiting cavity or the second limiting cavity; A plurality of annular blocks are arranged on the opposite surfaces of the two second positioning plates, and the plurality of annular blocks are distributed in an annular array. A third limiting cavity is formed between the annular block and the second positioning plate, and the central axis of the third limiting cavity coincides with the central axis of the through hole; The installation seat has a first extending end and a second extending end, and the first extending end and the second extending end are staggered. The first extending end is located between the outer support plate member and the inner support plate member, and the second extending end is located inside the inner support plate member; A first shock isolation member is arranged at the first extending end, and both ends of the first shock isolation member are respectively abutted in the first limiting cavity and the second limiting cavity; A second shock isolation member is arranged at the second extending end, and both ends of the second shock isolation member are respectively abutted in the two third limiting cavities.

2. The seismic isolation device for high-voltage electrical equipment in a substation according to claim 1, wherein, The fixed seat includes a fixed pipe and a fixing plate; the fixing plate is arranged in an annular plate structure, and the two fixing plates are respectively sleeved at both ends of the fixed pipe. The surface of the upper fixing plate is on the same plane as the ground surface, and both fixing plates are fixedly arranged through fasteners.

3. The seismic isolation device for high-voltage electrical equipment in a substation according to claim 2, wherein, The outer support plate member further includes a first diagonal brace; the outer circle of the first positioning plate is connected to the inner circle of the fixed pipe, and a plurality of the first diagonal braces are arranged in an annular array. Both ends of the first diagonal brace are respectively connected to the inner surface of the fixed pipe and the surface of the first positioning plate.

4. The seismic isolation device for high-voltage electrical equipment in a substation according to claim 3, characterized in that, The outer circle of the second positioning plate is connected to the inner circle of the fixed pipe.

5. The seismic isolation device for high-voltage electrical equipment in a substation according to claim 4, characterized in that, The outer circle of the third positioning plate is connected to the inner circle of the fixed pipe.

6. The seismic isolation device for high-voltage electrical equipment in a substation according to claim 5, characterized in that, The annular block is provided with a movable opening on one side facing the central axis of the fixed pipe.

7. The seismic isolation device for high-voltage electrical equipment in a substation according to claim 6, characterized in that, The mounting seat includes a mounting tube, a first positioning tube, a first connecting rod and a second diagonal brace; the mounting tube is located in the inner circle of the first positioning plate, and multiple pairs of coaxially arranged first positioning tubes are distributed in a ring array around the mounting tube and are connected to the mounting tube through the first connecting rod. The two ends of the second diagonal brace are respectively connected to the first connecting rod and the mounting tube, and the first positioning plate and the second positioning plate are respectively provided with a first bevel and a second bevel between the inner circle and the end face, which are used to respectively abut against the two second diagonal braces on the upper and lower sides of the first connecting rod.

8. The seismic isolation device for high-voltage electrical equipment in a substation according to claim 7, characterized in that, The mounting seat also includes a second positioning tube and a second connecting rod; the horizontal height of the second positioning tube is located between the two first positioning tubes arranged in pairs, and a plurality of the second positioning tubes are distributed in a circular array around the mounting tube and are connected to the mounting tube through the second connecting rod, the second connecting rod is connected to one end of the second positioning tube and is bent, and the second positioning tube and the first positioning tube are staggered on the radial section of the mounting tube.

9. The seismic isolation device for high-voltage electrical equipment in a substation according to claim 8, characterized in that, The first seismic isolation component includes a first spring and a rubber column. The first spring is arranged in the first positioning tube. The two ends of the first spring are respectively connected to the bottom surfaces of the first limiting cavity and the second limiting cavity. The rubber column is covered on the surface of the first spring, and the surface of the rubber column is in contact with the inner circle of the first positioning tube.

10. The seismic isolation device for high-voltage electrical equipment in a substation according to claim 9, characterized in that, The second seismic isolation member includes a second spring and an abutment plate; the second spring is arranged in the second positioning tube, the two ends of the second spring are respectively connected to the two abutment plates, and the surface of the abutment plate abuts against the bottom surface of the third limiting cavity.

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