1000kV high-resistance seismic isolation frame for high-altitude and high-seismic-intensity regions

Abstract

The utility model relates to the technical field of electrical equipment installation, aims to solve the problems that in the prior art, a 1000-kilovolt high-voltage reactor in a high-altitude and high-seismic-intensity area is large in equipment size and load and is greatly influenced by horizontal seismic force, and the equipment and the structure are prone to deformation, and provides a 1000-kilovolt high-resistance seismic isolation frame in a high-altitude and high-seismic-intensity area. The frame body is provided with a plurality of I-shaped steel located on the same plane, and the I-shaped steel is perpendicular to one another and fixedly connected at intervals. The first steel plates and the second steel plates are arranged at the connecting joints of the I-shaped steel and fixedly connected to the connecting joints of the I-shaped steel. The high-voltage reactor has the beneficial effects that the horizontal earthquake acting force resisting performance of high-voltage reactor equipment is improved, the earthquake damage risk of the equipment when the equipment is in a high-altitude area with a larger boundary dimension and is in a high-seismic-intensity area is greatly reduced, the equipment and the structure are not easy to deform, and the reliability of related equipment in the high-altitude area and the high-seismic-intensity area is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment installation, and in particular to a 1000kV high-resistance seismic isolation frame for areas with high altitude and high seismic intensity. Background Art

[0002] The world's highest altitude 1000kV substation project is the first to be implemented in China and even in the world. Compared with conventional altitude substations, UHV substations with an altitude of more than 3000m and a seismic fortification intensity of 8 degrees need to consider high-altitude corrections for electrical equipment, new bodies, large changes in equipment layout, and large earthquake effects. Electrical equipment also has higher requirements for the stability and seismic resistance of related structural components.

[0003] Previously, there was no UHV substation in China located in an 8-degree defense zone with an altitude of more than 3000m that adopted a 1000kV high-voltage reactor isolator base isolation frame solution consisting of welded I-beams, steel plate materials, and bolts and welds.

[0004] At present, in areas of high altitude and high seismic intensity, 1000kV high-voltage reactor equipment has large size and load, and is greatly affected by horizontal seismic forces. Utility Model Content

[0005] The utility model aims to provide a 1000kV high-resistant seismic isolation frame for high-altitude and high-seismic intensity areas, so as to solve the problems in the prior art that the 1000kV high-voltage reactor equipment in high-altitude and high-seismic intensity areas has large size and load, is greatly affected by horizontal seismic forces, and is easy to deform the equipment and structure.

[0006] The embodiment of the utility model is achieved as follows:

[0007] The embodiment of the utility model provides a 1000kV high-seismic isolation frame for high-altitude and high-seismic intensity areas, which includes a frame body;

[0008] The frame body has a plurality of I-beams, the plurality of I-beams are located in the same plane, the plurality of I-beams are vertically fixedly connected to each other, and the plurality of I-beams are spaced apart from each other;

[0009] A first steel plate and a second steel plate are provided at the connection nodes of the plurality of I-beams, and the first steel plate and the second steel plate are fixedly connected at the connection nodes of the plurality of I-beams;

[0010] The lower part of the frame body is arranged on the anti-seismic tension attachment, and the frame body and the anti-seismic tension attachment are mutually bolted;

[0011] The lower part of the anti-seismic tension accessory has a base, the base is located below the ground, a plurality of pre-embedded anchor bars are embedded inside the base, a plurality of pre-embedded sleeves are provided at the tops of the pre-embedded anchor bars, a plurality of pre-embedded sleeves are provided with pre-embedded steel plates, and the anti-seismic tension accessory is connected to the pre-embedded steel plates by bolts;

[0012] The top of the frame body is fixedly connected with a high-resistance device.

[0013] During installation, first determine the outer contour dimensions of the bottom of the high-voltage reactor, the layout position of the isolator, the load of the high-voltage reactor equipment, the plane layout dimensions of the isolator base, the isolation frame body, the segmented connection positions of the isolation frame body and the upper and lower flange connection opening positions based on the input equipment data; determine the height of the isolation frame body and the thickness of the flange web by calculation; then, several of the above-mentioned I-beams are vertically fixedly connected to each other; at the connection nodes where the above-mentioned first steel plate and the above-mentioned second steel plate are fixedly connected to several of the above-mentioned I-beams, the base supports the anti-isolation tension accessories, the anti-isolation tension accessories support the frame body, the frame body supports the high-resistance equipment, and the electrical equipment is arranged on the high-resistance equipment to form a frame system.

[0014] The 1000kV high seismic isolation frame for high-altitude and high seismic intensity areas disclosed in the present embodiment adopts an I-beam structure as the main body, and the connection is strengthened at the web by the first steel plate and the second steel plate. Therefore, the 1000kV high seismic isolation frame for high-altitude and high seismic intensity areas can ensure vertical force while improving the performance of high-voltage reactor equipment in resisting horizontal seismic forces, greatly reducing the risk of earthquake damage to the equipment when the equipment has a large external size in high-altitude areas and is in high seismic intensity areas, effectively controlling the absolute deformation of the equipment and structure, and having the beneficial effect of improving the reliability of related equipment in high-altitude and high seismic intensity areas.

[0015] Optionally, some of the I-beams include transverse I-beams and longitudinal I-beams, and the transverse I-beams and the longitudinal I-beams are vertically fixedly connected to each other.

[0016] With such arrangement, the frame body is formed by interconnecting the transverse I-beam and the longitudinal I-beam, which greatly reduces the risk of earthquake damage when the equipment has large dimensions at high altitudes and is in areas of high earthquake intensity. The frame body can play a good role in supporting the equipment.

[0017] Optionally: a connecting piece is provided at the connection between the above-mentioned transverse I-beam and the above-mentioned longitudinal I-beam, the outer edges of the above-mentioned connecting piece are respectively welded to the inner sides of the upper wing plate, the web plate and the lower wing plate of the above-mentioned longitudinal I-beam, the web plate of the above-mentioned transverse I-beam is attached to the above-mentioned connecting piece of the above-mentioned longitudinal I-beam, and the above-mentioned first steel plate and the above-mentioned second steel plate are respectively clamped on both sides of the connection between the web plate of the above-mentioned transverse I-beam and the above-mentioned connecting piece.

[0018] With such arrangement, by welding the connecting piece between the upper wing plate, the web plate and the lower wing plate of the longitudinal I-beam, the connection between the longitudinal I-beam and the web plate of the transverse I-beam is achieved, thereby improving the strength of the mutual connection.

[0019] Optionally: a plurality of coaxial holes are provided on the first steel plate and the second steel plate, bolts are fitted in the holes, and the first steel plate and the second steel plate are fixedly connected on both sides of the connection between the web of the transverse I-beam and the connecting piece by the bolts.

[0020] Such arrangement, using a plurality of the above-mentioned bolts for connection, is convenient for installation and disassembly, is conducive to the on-site assembly of the above-mentioned frame body, and is also convenient for assembling the above-mentioned frame body into modules and integrating and installing them together on-site.

[0021] Optionally, a first notch is formed at the upper and lower ends of one end of the connecting member close to the transverse I-beam.

[0022] In this way, the first notch provides space for welding the flanges of the transverse I-beam and the longitudinal I-beam, so that the flanges of the transverse I-beam and the longitudinal I-beam are welded to each other more firmly.

[0023] Optionally, a second notch is formed at the upper and lower ends of the web of the transverse I-beam close to the connecting piece.

[0024] With such arrangement, the second notch cooperates with the first notch, so that the weld between the wing plate of the transverse I-beam and the wing plate of the longitudinal I-beam is more firmly welded.

[0025] Optionally, the wing plates of the transverse I-beam and the wing plates of the longitudinal I-beam are welded to each other.

[0026] Such an arrangement makes the frame body more stable, has higher structural strength, has strong resistance to horizontal earthquake forces, and effectively avoids deformation of equipment and structure.

[0027] Optionally, gaskets are clamped at the joints between the plurality of bolts and the first steel plate and the second steel plate.

[0028] With such arrangement, the gasket can well protect the first steel plate and the second steel plate from being worn, thereby effectively extending the service life of the device.

[0029] Based on the above description, the 1000kV high-resistant seismic isolation frame for high-altitude and high seismic intensity areas disclosed by the utility model has the advantage of ensuring vertical force while improving the performance of high-voltage reactor equipment in resisting horizontal seismic forces, greatly reducing the risk of earthquake damage to the equipment when the equipment has large dimensions in high-altitude areas and is in high seismic intensity areas, effectively controlling the absolute deformation of the equipment and structure, and having the beneficial effect of improving the reliability of related equipment in high-altitude and high seismic intensity areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a plan layout diagram (partially cut away) of a 1000kV high seismic isolation frame for use in high altitude and high seismic intensity areas in an embodiment of the utility model;

[0032] Figure 2 For the utility model embodiment Figure 1 A structural schematic diagram of a partial enlarged view A in FIG.

[0033] Figure 3 For the utility model embodiment Figure 2 Schematic diagram of the structure from the perspective of the middle BB;

[0034] Figure 4 It is a cross-sectional view of the isolator base and the frame body in the embodiment of the utility model.

[0035] Icons: 1-frame, 2-I-beam, 3-first steel plate, 4-second steel plate, 5-transverse I-beam, 6-longitudinal I-beam, 7-connector, 8-hole, 9-bolt, 10-first notch, 11-second notch, 12-seismic isolation tension accessories, 13-base, 14-embedded anchor bars, 15-embedded sleeves, 16-embedded steel plates, 17-high-resistance equipment. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example

[0039] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , This embodiment proposes a 1000kV high-resistance seismic isolation frame for high-altitude and high-seismic intensity areas, including a frame body 1;

[0040] The frame body 1 has a plurality of I-beams 2, the plurality of I-beams 2 are all located in the same plane, the plurality of I-beams 2 are vertically fixedly connected to each other, and the plurality of I-beams 2 are spaced apart from each other;

[0041] The connection nodes of the plurality of I-beams 2 are provided with a first steel plate 3 and a second steel plate 4, and the first steel plate 3 and the second steel plate 4 are fixedly connected to the connection nodes of the plurality of I-beams 2;

[0042] The lower part of the frame body 1 is provided with an anti-seismic tension attachment 12, and the frame body 1 and the anti-seismic tension attachment 12 are bolted to each other; the lower part of the anti-seismic tension attachment 12 has a base 13, the base 13 is located below the ground, a plurality of pre-embedded anchor bars 14 are embedded inside the base 13, the tops of the plurality of pre-embedded anchor bars 14 are provided with a plurality of pre-embedded sleeves 15, and the plurality of pre-embedded sleeves 15 are provided with pre-embedded steel plates 16, and the anti-seismic tension attachment 12 is connected to the pre-embedded steel plates 16 by bolts;

[0043] A high-resistance device 17 is fixedly connected to the top of the frame body 1 .

[0044] During installation, first determine the outer contour size of the bottom of the high-voltage reactor, the layout position of the seismic isolator, the load of the high-voltage reactor equipment, the plane layout size of the seismic isolator base seismic isolation frame body 1, the segmented connection position of the seismic isolation frame body 1 and the upper and lower flange connection opening positions according to the input equipment data, and determine the height of the seismic isolation frame body 1 and the thickness of the flange web by calculation. Then, a number of I-beams 2 are fixedly connected to each other vertically, and the first steel plate 3 and the second steel plate 4 are fixedly connected to the connection nodes of a number of I-beams 2. The base 13 supports the anti-seismic isolation tensile accessory 12, and the anti-seismic isolation tensile accessory 12 supports the frame body 1. The frame body 1 also supports the high-voltage resistance equipment 17, and the electrical equipment is arranged on the high-voltage resistance equipment 17 to form a frame system.

[0045] The 1000kV high seismic isolation frame for high-altitude and high seismic intensity areas disclosed in the present embodiment adopts an I-beam structure as the main body, and the first steel plate 3 and the second steel plate 4 are used to strengthen the connection at the web. As a result, the 1000kV high seismic isolation frame for high-altitude and high seismic intensity areas has the advantages of ensuring vertical force while improving the performance of high-voltage reactor equipment in resisting horizontal seismic forces, greatly reducing the risk of earthquake damage to the equipment when the equipment has a large external size in high-altitude areas and is in high seismic intensity areas, effectively controlling the absolute deformation of the equipment and structure, and improving the reliability of related equipment in high-altitude and high seismic intensity areas.

[0046] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , several I-beams 2 have transverse I-beams 5 and longitudinal I-beams 6, and the transverse I-beams 5 and the longitudinal I-beams 6 are vertically fixedly connected to each other. The transverse I-beams 5 and the longitudinal I-beams 6 are connected to each other to form a frame body 1, which greatly reduces the risk of earthquake damage when the equipment has a large size in high-altitude areas and is in areas with high seismic intensity. The frame body 1 can play a good role in supporting the equipment.

[0047] A connecting piece 7 is provided at the connection between the transverse I-beam 5 and the longitudinal I-beam 6, and the outer edges of the connecting piece 7 are respectively welded to the inner sides of the upper wing plate, the web plate and the lower wing plate of the longitudinal I-beam 6, and the web plate of the transverse I-beam 5 is attached to the connecting piece 7 of the longitudinal I-beam 6. The first steel plate 3 and the second steel plate 4 are respectively clamped on both sides of the connection between the web plate of the transverse I-beam 5 and the connecting piece 7. By welding the connecting piece 7 between the upper wing plate, the web plate and the lower wing plate of the longitudinal I-beam 6, the connection between the longitudinal I-beam 6 and the web plate of the transverse I-beam 5 is realized, and the strength of the mutual connection is improved.

[0048] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 A plurality of coaxial holes 8 are provided on the first steel plate 3 and the second steel plate 4, and bolts 9 are fitted in the plurality of holes 8. The first steel plate 3 and the second steel plate 4 are fixedly connected to both sides of the connection between the web of the transverse I-beam 5 and the connecting piece 7 by bolts 9. The plurality of bolts 9 are used for connection, which is convenient for installation and disassembly, and is beneficial for on-site assembly of the frame body 1, and is also convenient for assembling the frame body 1 into modules and integrating and installing them together on-site.

[0049] A first notch 10 is provided at the upper and lower ends of the connecting piece 7 near the transverse I-beam 5. The first notch 10 provides space for welding the flanges of the transverse I-beam 5 and the longitudinal I-beam 6, so that the flanges of the transverse I-beam 5 and the longitudinal I-beam 6 are welded to each other more firmly.

[0050] The web of the transverse I-beam 5 is provided with second notches 11 at the upper and lower ends near the connecting piece 7. The second notch 11 cooperates with the first notch 10 to make the weld between the flange of the transverse I-beam 5 and the flange of the longitudinal I-beam 6 more secure.

[0051] The wing plates of the transverse I-beam 5 and the wing plates of the longitudinal I-beam 6 are welded to each other, which makes the frame body 1 more stable, has higher structural strength, has strong resistance to horizontal earthquake forces, and effectively avoids deformation of equipment and structure.

[0052] Gaskets (not shown) are clamped at the joints between the bolts 9 and the first steel plate 3 and the second steel plate 4. The gaskets can well protect the first steel plate 3 and the second steel plate 4 from wear and tear, effectively extending the service life of the device.

[0053] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The arrangement of the seismic isolation tensile accessories 12, the base 13, a plurality of embedded anchor bars 14, a plurality of embedded sleeves 15 and the embedded steel plates 16 enables the frame body 1 to be firmly connected to the ground, greatly reducing the risk of earthquake damage when the equipment has a large size in high-altitude areas and is in areas of high seismic intensity, thereby improving the performance of the high-voltage reactor equipment in resisting horizontal seismic forces.

[0054] The high-voltage reactor equipment 17 is fixed on the top of the frame body 1, which can ensure vertical force while improving the performance of the high-voltage reactor equipment in resisting horizontal seismic forces, greatly reducing the risk of earthquake damage when the equipment is large in size at high altitudes and in areas of high seismic intensity. It effectively controls the absolute deformation of the equipment and structure, and improves the reliability of related equipment in high altitude and high seismic intensity areas.

[0055] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the layer height of the frame body 1 is 400mm, the plane size is 11m×7.8m, the main body adopts a welded I-beam structure, the upper flange thickness is 30mm, and the lower flange thickness is 20mm. The frame body 1 adopts a first steel plate 3 and a second steel plate 4 connected by bolts 9 at the web of the I-beam, and the flange of the I-beam is welded.

[0056] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, in order to facilitate transportation, the seismic isolation frame body 1 is divided into several independent structures, which are finally fixed together after arriving at the site, which not only meets the force performance but also meets the transportation requirements well.

[0057] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. 1000kV high seismic isolation frame for high altitude and high seismic intensity areas, characterized by: Including a frame body; The frame body has a plurality of I-beams, the plurality of I-beams are located in the same plane, the plurality of I-beams are vertically fixedly connected to each other, and the plurality of I-beams are spaced apart from each other; A first steel plate and a second steel plate are provided at the connection nodes of the plurality of I-beams, and the first steel plate and the second steel plate are fixedly connected at the connection nodes of the plurality of I-beams; The lower part of the frame body is provided with an anti-seismic tension attachment, and the frame body and the anti-seismic tension attachment are bolted to each other; The lower part of the anti-seismic tension accessory has a base, the base is located below the ground, a plurality of pre-embedded anchor bars are embedded inside the base, the tops of the pre-embedded anchor bars are provided with a plurality of pre-embedded sleeves, the pre-embedded sleeves are provided with pre-embedded steel plates, and the anti-seismic tension accessory is connected to the pre-embedded steel plates by bolts; The top of the frame body is fixedly connected with a high-resistance device.

2. The 1000 kV high seismic isolation frame for high altitude and high seismic intensity areas according to claim 1 is characterized in that: The plurality of I-beams include transverse I-beams and longitudinal I-beams, and the transverse I-beams and the longitudinal I-beams are vertically fixedly connected to each other.

3. The 1000 kV high seismic isolation frame for high altitude and high seismic intensity areas according to claim 2 is characterized in that: A connecting piece is provided at the connection between the transverse I-beam and the longitudinal I-beam, and the outer edges of the connecting piece are respectively welded to the inner sides of the upper wing plate, the web plate and the lower wing plate of the longitudinal I-beam, and the web plate of the transverse I-beam is attached to the connecting piece of the longitudinal I-beam, and the first steel plate and the second steel plate are respectively clamped on both sides of the connection between the web plate of the transverse I-beam and the connecting piece.

4. The 1000 kV high seismic isolation frame for high altitude and high seismic intensity areas according to claim 3 is characterized by: The first steel plate and the second steel plate are both provided with a plurality of coaxial holes, and the plurality of holes are each fitted with bolts. The first steel plate and the second steel plate are fixedly connected to both sides of the connection between the web of the transverse I-beam and the connecting piece by the bolts.

5. The 1000 kV high seismic isolation frame for high altitude and high seismic intensity areas according to claim 3 is characterized by: The connecting piece has first notches at the upper and lower ends thereof close to the transverse I-beam.

6. The 1000 kV high seismic isolation frame for high altitude and high seismic intensity areas according to claim 5 is characterized in that: The web of the transverse I-beam is provided with second notches at the upper and lower ends thereof close to the connecting piece.

7. The 1000 kV high seismic isolation frame for high altitude and high seismic intensity areas according to claim 2 is characterized by: The wing plates of the transverse I-beam and the wing plates of the longitudinal I-beam are welded to each other.

8. The 1000 kV high-resistance seismic isolation frame for high-altitude and high-seismic intensity areas according to claim 4 is characterized by: Gaskets are clamped at the joints between the bolts and the first steel plate and the second steel plate.

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