Indoor substation structure

Abstract

The application provides an indoor substation structure, comprising: a first main transformer room; a first main transformer arranged in the first main transformer room; a GIS device room arranged adjacent to the first main transformer room; a first GIS device arranged in the GIS device room, the first GIS device being electrically connected with the first main transformer and having a first connection end group; a first shunt reactor room arranged adjacent to the GIS device room, wherein the first main transformer room, the GIS device room and the first shunt reactor room are sequentially arranged in a first direction, and the first shunt reactor room is arranged at a first edge position of the indoor substation structure; a first shunt reactor arranged in the first shunt reactor room and having a second connection end group; and a first GIL pipe group connected between the first connection end group and the second connection end group to realize electrical connection of the first GIS device and the first shunt reactor. The technical scheme of the application can effectively solve the problem that the shunt reactor is difficult to be connected with the GIS device in the related art.

Description

Technical Field

[0001] The present invention relates to the technical field of substation structures, and in particular to an indoor substation structure. Background Art

[0002] In a 500kV power grid, when a fault occurs or a three-phase trip occurs without any fault, personnel must take measures to limit power-frequency overvoltages on the busbar and line sides to below 1.3 and 1.4 times the rated value of the highest line operating voltage. Adding reactors to a 500kV power grid increases the beat-frequency characteristics of the recovery voltage waveform during the circuit breaker's opening and closing process, reducing the probability of a circuit breaker re-breakdown.

[0003] The installation of high-voltage shunt reactors for busbar compensation in 500kV substations is becoming increasingly common. The placement of busbar high-voltage shunt reactors directly impacts many key project factors, including project investment, floor space, equipment and personnel safety, and operation and maintenance.

[0004] Conventional 500kV busbar high-voltage reactor distribution devices generally adopt an open layout. This layout is connected to the high-voltage reactor room through a single-pole double-arm busbar disconnector, a circuit breaker, and a double-pole horizontal telescopic disconnector. The horizontal dimension of this circuit is 56.5m, and the high-voltage reactor circuit arrester is connected to the high-voltage reactor center line. This layout has a large horizontal dimension and occupies a large area. Two sets of reactors occupy an area of ​​about 2,500 square meters. At the same time, the equipment failure points will increase, and the maintenance workload will increase. If the reactor is installed indoors, although the layout of the 500kV busbar high-voltage reactor distribution device can be made compact, due to the small space indoors and the presence of other equipment in the room, it is impossible to use conventional cables to connect the reactor to equipment such as GIS equipment.

[0005] Therefore, there is a technical problem in the art that it is difficult to connect the reactor to the GIS equipment in a 500kV indoor substation. Summary of the Invention

[0006] The main purpose of the present invention is to provide an indoor substation structure to solve the problem in the related art that the reactor is difficult to connect with the GIS equipment.

[0007] In order to achieve the above-mentioned objectives, the present invention provides an indoor substation structure, comprising: a first main transformer room; a first main transformer, arranged in the first main transformer room; a GIS equipment room, arranged adjacent to the first main transformer room; a first GIS equipment, arranged in the GIS equipment room, the first GIS equipment being electrically connected to the first main transformer and having a first connection terminal group; a first shunt reactor room, arranged adjacent to the GIS equipment room, wherein the first main transformer room, the GIS equipment room and the first shunt reactor room are arranged in sequence in a first direction, and the first shunt reactor room is arranged at a first edge position of the indoor substation structure; a first shunt reactor, arranged in the first shunt reactor room and having a second connection terminal group; a first GIL tube group, connected between the first connection terminal group and the second connection terminal group to realize electrical connection between the first GIS equipment and the first shunt reactor.

[0008] Furthermore, the second connection terminal group is arranged on a side of the first shunt reactor close to the GIS equipment room, and the first connection terminal group is arranged on a side of the first GIS equipment away from the first shunt reactor room in the first direction.

[0009] Furthermore, the first connection end group includes a first A-phase connection end, a first B-phase connection end and a first C-phase connection end arranged in sequence from left to right, the second connection end group includes a second A-phase connection end, a second B-phase connection end and a second C-phase connection end arranged in sequence from left to right, the first GIL tube group includes a first A-phase tube body, a first B-phase tube body and a first C-phase tube body, the first A-phase tube body is connected between the first A-phase connection end and the second A-phase connection end, the first B-phase tube body is connected between the first B-phase connection end and the second B-phase connection end, and the first C-phase tube body is connected between the first C-phase connection end and the second C-phase connection end.

[0010] Furthermore, the first shunt reactor and the first GIS device are spaced apart in a second direction perpendicular to the first direction, and the first GIL pipe group includes a first pipe section, a second pipe section, a third pipe section and a fourth pipe section arranged in sequence, the first pipe section extends along the second direction and is connected to the first connection end group, the second pipe section extends along the first direction and is located on the side of the first shunt reactor close to the first shunt reactor, the third pipe section extends along the second direction and is located on the side of the first shunt reactor close to the GIS equipment room, and the fourth pipe section extends along the first direction and is connected to the second connection end group, wherein the first pipe section, the second pipe section and the third pipe section are all located in the GIS equipment room, and the fourth pipe section runs through the wall between the GIS equipment room and the first shunt reactor room.

[0011] Furthermore, in the first pipe section and the third pipe section, the first A-phase tube body, the first B-phase tube body and the first C-phase tube body are arranged in a vertical row, and in the second pipe section, the first A-phase tube body, the first B-phase tube body and the first C-phase tube body are arranged in two vertical rows to change the phase sequence of the first A-phase tube body, the first B-phase tube body and the first C-phase tube body in the first pipe section and the third pipe section.

[0012] Furthermore, in the first pipe layout section, the first C-phase tube body, the first B-phase tube body and the first A-phase tube body are arranged in sequence from top to bottom; in the second pipe layout section, the first B-phase tube body and the first A-phase tube body are arranged in a row and the first B-phase tube body is located above the first A-phase tube body, the first C-phase tube body is located on the side of the first B-phase tube body and the first A-phase tube body away from the first GIS equipment, and the first C-phase tube body is located below the first B-phase tube body; in the third pipe layout section, the first B-phase tube body, the first A-phase tube body and the first C-phase tube body are arranged in sequence from top to bottom.

[0013] Furthermore, the indoor substation structure also includes a lifting folded pipe structure, which includes a horizontal pipe and a first vertical pipe and a second vertical pipe respectively arranged at both ends of the horizontal pipe and extending downward. The first vertical pipe is connected to the first A-phase pipe body, the first B-phase pipe body or the first C-phase pipe body in the fourth pipe section, and the second vertical pipe is connected to the second A-phase connecting end, the second B-phase connecting end or the second C-phase connecting end.

[0014] Furthermore, the first A-phase tube body includes a plurality of tube body segments and a plurality of telescopic sleeves arranged in sequence, and a telescopic sleeve is arranged between every two adjacent tube body segments.

[0015] Furthermore, the multiple pipe segments include a first pipe body and a second pipe body, the first pipe body passes through the wall between the GIS equipment room and the first shunt reactor room, the second pipe body is arranged adjacent to the first pipe body and extends in the same direction, and the multiple telescopic sleeves include a single-stage telescopic tube and a multi-stage telescopic tube, wherein the multi-stage telescopic tube is connected between the first pipe body and the second pipe body, and the single-stage telescopic tube is connected between multiple pipe segments other than the first pipe body and the second pipe body.

[0016] Furthermore, the indoor substation structure also includes a hanger structure connected to the top wall of the GIS equipment room and / or the top wall of the first shunt reactor room, and the first GIL tube group is passed through the lower end of the hanger structure.

[0017] Furthermore, the indoor substation structure also includes: a second main transformer room, which is arranged adjacent to the first main transformer room, and the first main transformer room and the second main transformer room are located on the same side of the GIS equipment room; a second main transformer, which is arranged in the second main transformer room; a second GIS equipment, which is arranged in the GIS equipment room and adjacent to the first GIS equipment, and the second GIS equipment is electrically connected to the second main transformer and has a third connection terminal group; a second shunt reactor room, which is arranged adjacent to the GIS equipment room, and the second shunt reactor room is arranged at a second edge position of the indoor substation structure; a second shunt reactor, which is arranged in the second shunt reactor room and has a fourth connection terminal group; a second GIL tube group, which is connected between the third connection terminal group and the fourth connection terminal group to realize the electrical connection between the second GIS equipment and the second shunt reactor.

[0018] Furthermore, the fourth connection terminal group is arranged on a side of the second shunt reactor close to the GIS equipment room, and the third connection terminal group is arranged on a side of the second GIS equipment away from the second shunt reactor room in the first direction.

[0019] Furthermore, the third connection end group includes a third A-phase connection end, a third B-phase connection end and a third C-phase connection end arranged in sequence from left to right, the fourth connection end group includes a fourth A-phase connection end, a fourth B-phase connection end and a fourth C-phase connection end arranged in sequence from front to back, the second GIL tube group includes a second A-phase tube body, a second B-phase tube body and a second C-phase tube body, the second A-phase tube body is connected between the third A-phase connection end and the fourth A-phase connection end, the second B-phase tube body is connected between the third B-phase connection end and the fourth B-phase connection end, and the second C-phase tube body is connected between the third C-phase connection end and the fourth C-phase connection end.

[0020] Furthermore, the first shunt reactor chamber and the second shunt reactor chamber are respectively located on both sides of the first GIS equipment and the second GIS equipment in a second direction perpendicular to the first direction. The second GIL pipe group includes a fifth pipe segment, a sixth pipe segment, a seventh pipe segment, an eighth pipe segment and a ninth pipe segment arranged in sequence. The fifth pipe segment extends along the second direction and is connected to the third connection end group. The sixth pipe segment extends along the first direction and is located on the side of the second GIS equipment close to the second shunt reactor in the second direction. The seventh pipe segment extends along the second direction and is arranged close to the wall between the second main transformer and the GIS equipment room. The eighth pipe segment extends along the first direction and is located in the second shunt reactor chamber. The ninth pipe segment extends along the second direction and is connected to the fourth connection end group. Among them, the fifth pipe segment and the sixth pipe segment are located in the GIS equipment room. The seventh pipe segment runs through the wall between the GIS equipment room and the second shunt reactor chamber. The second shunt reactor chamber includes three compartments independently arranged in sequence along the first direction. The eighth pipe segment runs through the wall between adjacent compartments.

[0021] Furthermore, the sixth pipe laying section has a lifting section to lift the second GIL tube group above the fourth connection end group.

[0022] Furthermore, in the fifth and sixth pipe sections, the second A-phase tube body, the second B-phase tube body and the second C-phase tube body are arranged in a vertical row; in the seventh pipe section, the second B-phase tube body and the second C-phase tube body are arranged in a vertical row; the second A-phase tube body is arranged side by side with the second B-phase tube body or side by side with the second C-phase tube body so that the second A-phase tube body extends toward the fourth A-phase connecting end; and in the eighth pipe section, the second B-phase tube body and the second C-phase tube body are arranged in a vertical row.

[0023] Furthermore, in the fifth and sixth pipe sections, the second A-phase pipe body, the second B-phase pipe body, and the second C-phase pipe body are arranged sequentially from top to bottom; in the seventh pipe section, the second B-phase pipe body and the second C-phase pipe body are arranged close to the wall between the second main transformer and the GIS equipment room relative to the second A-phase pipe body, and the second B-phase pipe body is located above the second C-phase pipe body; and in the eighth pipe section, the second B-phase pipe body is located above the second C-phase pipe body.

[0024] Furthermore, the first main transformer and the second main transformer are 550 kV transformers; the first GIS device and the second GIS device are 550 kV GIS devices; and the first shunt reactor and the second shunt reactor are 550 kV shunt reactors.

[0025] According to the technical solution of the present invention, the first main transformer is arranged in the first main transformer room, the first GIS equipment is arranged in the GIS equipment room, and the first shunt reactor is arranged in the first shunt reactor room. Since the first shunt reactor is large in size and not easy to transport, and it also produces large noise and vibration during operation, the first shunt reactor room is arranged at the first edge position of the indoor substation structure. Since the first GIS equipment needs to be electrically connected to the first main transformer and the first shunt reactor to connect the first shunt reactor and the first GIS equipment to the power grid of the indoor substation structure, the first main transformer room, the GIS equipment room and the first shunt reactor room are arranged in the first direction a. The GIS equipment room is arranged in sequence, that is, it is arranged between the first main transformer room and the first shunt reactor room, so that the routes from the first GIS equipment to the first shunt reactor and to the first main transformer are both short, making it easier for staff to connect them; the first GIS equipment has a first connection terminal group, and the first shunt reactor has a second connection terminal group. The first connection terminal group and the second connection terminal group are electrically connected through the first GIL tube group. The first GIL tube group can be bent to adapt to the narrow indoor space. By reasonably setting the layout of the first GIL tube group, other equipment installed in the indoor space can be avoided to achieve electrical connection between the first GIS equipment and the first shunt reactor. Therefore, the technical solution of the present application can effectively solve the problem of difficulty in connecting the reactor to the GIS equipment in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 A schematic top view of an embodiment of an indoor substation structure according to the present invention is shown;

[0028] Figure 2 Shown Figure 1 An enlarged schematic diagram of a portion of the structure of an indoor substation;

[0029] Figure 3 Shown Figure 1 A side view schematic diagram of the first GIL pipe group of the indoor substation structure;

[0030] Figure 4 Shown Figure 1 A side view schematic diagram of a first room of an indoor substation structure;

[0031] Figure 5 Shown Figure 1 A side view schematic diagram of the second room of the indoor substation structure;

[0032] Figure 6 Shown Figure 1 A side view schematic diagram of the third room of the indoor substation structure;

[0033] Figure 7 Shown Figure 1 An enlarged schematic diagram of a portion of the structure of an indoor substation;

[0034] Figure 8 Shown Figure 1 A side view schematic diagram of the second GIL pipe group of the indoor substation structure;

[0035] Figure 9 Shown Figure 1 A schematic side view of the second GIL tube group of the indoor substation structure from another angle;

[0036] Figure 10 Shown Figure 1 A side view schematic diagram of the fourth room of the indoor substation structure;

[0037] Figure 11 Shown Figure 1 A side view schematic diagram of the fifth room of the indoor substation structure;

[0038] Figure 12 Shown Figure 1 A side view schematic diagram of the sixth room of the indoor substation structure;

[0039] Figure 13 Shown Figure 1 A front view of a single-stage telescopic tube of an indoor substation structure;

[0040] Figure 14 Shown Figure 1 Front view of the multi-stage telescopic tube of the indoor substation structure.

[0041] The above drawings include the following reference numerals:

[0042] a. first direction; b. second direction;

[0043] D1, the height of the middle of the wall support beam from the ground; D2, the distance of the first B-phase tube 72 from the ground; D3, the distance of the first A-phase tube 71 from the ground; D4, the distance of the first C-phase tube 73 from the ground;

[0044] 10. First main transformer room;

[0045] 30. GIS equipment room;

[0046] 40. First GIS device; 41. First connection terminal group; 411. First A-phase connection terminal; 412. First B-phase connection terminal; 413. First C-phase connection terminal;

[0047] 50. First shunt reactor room; 51. Wall support beam; 52. First room; 53. Second room; 54. Third room;

[0048] 60. First shunt reactor; 61. Second connection terminal group; 611. Second A-phase connection terminal; 612. Second B-phase connection terminal; 613. Second C-phase connection terminal; 62. First A-phase reactor; 63. First B-phase reactor; 64. First C-phase reactor;

[0049] 70. First GIL tube assembly; 71. First A-phase tube; 711. First tube; 712. Second tube; 72. First B-phase tube; 73. First C-phase tube; 74. First pipe section; 75. Second pipe section; 76. Third pipe section; 77. Fourth pipe section; 78. Telescopic sleeve; 781. Single-stage telescopic tube; 782. Multi-stage telescopic tube.

[0050] 80. Lifting folded pipe structure; 81. Horizontal pipe; 82. First vertical pipe; 83. Second vertical pipe;

[0051] 90. Hanger structure;

[0052] 100. Second main transformer room;

[0053] 110. Second main transformer;

[0054] 120, second GIS equipment; 121, third connection terminal group; 1211, third A-phase connection terminal; 1212, third B-phase connection terminal; 1213, third C-phase connection terminal;

[0055] 130, second shunt reactor room; 131, fourth room; 132, fifth room; 133, sixth room;

[0056] 140, second shunt reactor; 141, fourth connection terminal group; 1411, fourth A-phase connection terminal; 1412, fourth B-phase connection terminal; 1413, fourth C-phase connection terminal; 142, second A-phase reactor; 143, second B-phase reactor; 144, second C-phase reactor;

[0057] 150. Second GIL tube group; 151. Second A-phase tube body; 152. Second B-phase tube body; 153. Second C-phase tube body; 154. Fifth pipe section; 155. Sixth pipe section; 1551. Elevated section; 156. Seventh pipe section; 157. Eighth pipe section; 158. Ninth pipe section. DETAILED DESCRIPTION

[0058] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0059] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0060] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. Technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0061] like Figures 1 to 6As shown, the present application provides an indoor substation structure. An embodiment of the indoor substation structure of the present application includes: a first main transformer room 10, a first main transformer, a GIS equipment room 30, a first GIS equipment 40, a first shunt reactor room 50, a first shunt reactor 60, and a first GIL pipe group 70; the first main transformer room 10; the first main transformer is arranged in the first main transformer room 10; the GIS equipment room 30 is arranged adjacent to the first main transformer room 10; the first GIS equipment 40 is arranged in the GIS equipment room 30, and the first GIS equipment 40 is electrically connected to the first main transformer and It has a first connection terminal group 41; the first shunt reactor chamber 50 is arranged adjacent to the GIS equipment room 30, wherein the first main transformer chamber 10, the GIS equipment room 30 and the first shunt reactor chamber 50 are arranged in sequence in the first direction a, and the first shunt reactor chamber 50 is arranged at the first edge position of the indoor substation structure; the first shunt reactor 60 is arranged in the first shunt reactor chamber 50 and has a second connection terminal group 61; the first GIL tube group 70 is connected between the first connection terminal group 41 and the second connection terminal group 61 to realize the electrical connection between the first GIS equipment 40 and the first shunt reactor 60.

[0062] According to the technical solution of this embodiment, the first main transformer is arranged in the first main transformer room 10, the first GIS equipment 40 is arranged in the GIS equipment room 30, and the first shunt reactor 60 is arranged in the first shunt reactor room 50. Since the first shunt reactor 60 is large in size and not easy to transport, and it also generates large noise and vibration during operation, the first shunt reactor room 50 is arranged at the first edge position of the indoor substation structure. Since the first GIS equipment 40 needs to be electrically connected to the first main transformer and the first shunt reactor 60, in order to connect the first shunt reactor 60 and the first GIS equipment 40 to the power grid of the indoor substation structure, the first main transformer room 10, the GIS equipment room 30 and the first shunt reactor room 50 are arranged in sequence in the first direction a. The GIS equipment room 30 is located between the first main transformer room 10 and the first shunt reactor room 50, shortening the routes from the first GIS equipment 40 to the first shunt reactor 60 and the first main transformer, making connection easier. The first GIS equipment 40 has a first connection terminal set 41, and the first shunt reactor 60 has a second connection terminal set 61. The first connection terminal set 41 and the second connection terminal set 61 are electrically connected via a first GIL tube set 70. The first GIL tube set 70 is bendable to accommodate confined indoor spaces. By properly arranging the first GIL tube set 70, it can be positioned away from other equipment within the indoor space, enabling electrical connection between the first GIS equipment 40 and the first shunt reactor 60. Therefore, the technical solution of this embodiment effectively addresses the difficulty in connecting reactors to GIS equipment in related technologies.

[0063] It should be noted that "GIS equipment" refers to gas-insulated metal-enclosed switchgear, which consists of circuit breakers, disconnectors, earthing switches, mutual inductors, lightning arresters, busbars, connectors and outgoing line terminals, etc. It is widely used in high voltage, extra-high voltage and ultra-high voltage fields; "GIL pipe group" includes GIL pipelines, which refers to gas-insulated metal-enclosed transmission pipelines. It uses metal conductive rods to transmit electricity, and the metal conductive rods are enclosed in a metal casing and insulated by pressurized gas, which can improve the safety of power transportation. The transmission capacity of GIL pipelines is large and can meet the needs of large-scale power transmission. Since GIL pipelines use gas insulation, the loss during the transmission process is small, which can also improve the efficiency of power transmission. In addition, the design life of GIL pipelines is long, and they can operate stably for a long time, which can reduce the frequency of maintenance and replacement. Figure 1 、 Figure 3 、 Figure 8 as well as Figure 9As shown, in this article, the description of the directions is as follows: "first direction a" refers to the front-back direction, "second direction b" refers to the left-right direction, and taking the example of a worker standing in the GIS equipment room 30, facing the first shunt reactor 60, and with his back to the first main transformer room 10, "left" refers to the left. Figure 1 The left side in the sentence is also the left side of the above-mentioned staff. The right side refers to Figure 1 The right side is also the right side of the above staff member. "Front" refers to the side that the above staff member is facing, "back" refers to the side that the above staff member is facing, and "up" refers to the side that the above staff member is facing. Figure 1 The side perpendicular to the paper, "down" refers to Figure 1 The side perpendicular to the paper and facing inward.

[0064] In addition, the "first edge position" refers to the frontmost edge position of the indoor substation structure.

[0065] like Figures 1 to 3 As shown, the second connection terminal group 61 is disposed on a side of the first shunt reactor 60 that is close to the GIS equipment room 30, and the first connection terminal group 41 is disposed on a side of the first GIS equipment 40 that is away from the first shunt reactor room 50 in the first direction a. Specifically, the second connection terminal group 61 is disposed behind the first shunt reactor 60, and the first connection terminal group 41 is disposed behind the first GIS equipment 40.

[0066] like Figures 1 to 3As shown, the first connection end group 41 includes a first A-phase connection end 411, a first B-phase connection end 412 and a first C-phase connection end 413 arranged in sequence from left to right, the second connection end group 61 includes a second A-phase connection end 611, a second B-phase connection end 612 and a second C-phase connection end 613 arranged in sequence from left to right, and the first GIL tube group 70 includes a first A-phase tube body 71, a first B-phase tube body 72 and a first C-phase tube body 73. The first A-phase tube body 71 is connected between the first A-phase connection end 411 and the second A-phase connection end 611, the first B-phase tube body 72 is connected between the first B-phase connection end 412 and the second B-phase connection end 612, and the first C-phase tube body 73 is connected between the first C-phase connection end 413 and the second C-phase connection end 613. Specifically, the first A-phase pipe body 71, the first B-phase pipe body 72, and the first C-phase pipe body 73 are independently arranged, which can reduce the possibility of interference between the three-phase pipe bodies. When one or more phase pipe bodies fail, it also allows staff to quickly locate the corresponding phase pipe body and perform inspection or maintenance on the phase pipe body. Specifically, the first shunt reactor chamber 50 includes three independent rooms arranged from left to right, namely, a first room 52, a second room 53, and a third room 54. The first shunt reactor 60 includes three-phase reactors, namely, a first A-phase reactor 62, a first B-phase reactor 63, and a first C-phase reactor 64. The first A-phase reactor 62 is arranged in the first room 52 and has a second A-phase connection terminal 611. The first B-phase reactor 63 is arranged in the second room 53 and has a second B-phase connection terminal 612. The first C-phase reactor 64 is arranged in the third room 54 and has a second C-phase connection terminal 613.

[0067] like Figures 1 to 3As shown, the first shunt reactor 60 and the first GIS device 40 are spaced apart in a second direction b perpendicular to the first direction a. The first GIL pipe group 70 includes a first pipe segment 74, a second pipe segment 75, a third pipe segment 76 and a fourth pipe segment 77 arranged in sequence. The first pipe segment 74 extends along the second direction b and is connected to the first connection end group 41. The second pipe segment 75 extends along the first direction a and is located on a side of the first GIS device 40 close to the first shunt reactor 60. The third pipe segment 76 extends along the second direction b and is located on a side of the first shunt reactor 60 close to the GIS equipment room 30. The fourth pipe segment 77 extends along the first direction a and is connected to the second connection end group 61. The first pipe segment 74, the second pipe segment 75 and the third pipe segment 76 are all located in the GIS equipment room 30, and the fourth pipe segment 77 runs through the wall between the GIS equipment room 30 and the first shunt reactor room 50. Specifically, a connecting pipe section extending in the up-down direction is provided between the first pipe section 74 and the first connection end group 41 for connection. The connecting pipe section is connected to the first end of the first pipe section 74. In the direction from the first end to the second end of the first pipe section 74, the first pipe section 74 extends from right to left. The second pipe section 75 is located on the left side of the first GIS equipment 40 and extends in the front-to-back direction. The third pipe section 76 is located behind the first shunt reactor 60 and extends in the left-to-right direction. The fourth pipe section 77 extends in the front-to-back direction and passes through the wall between the GIS equipment room 30 and the first shunt reactor room 50.

[0068] like Figures 1 to 6 As shown, the indoor substation structure also includes a hanger structure 90 connected to the top wall of the GIS equipment room 30 and the top wall of the first shunt reactor room 50. The first GIL tube assembly 70 is installed through the lower end of the hanger structure 90. The hanger structure 90 can stably suspend the first GIL tube assembly 70 in the air, minimizing the distance from equipment placed on the indoor floor. The hanger structure 90 can suspend either a single tube or multiple tubes arranged in a vertical row, making the tube layout more compact and reasonable. Furthermore, the second GIL tube assembly 150, described later, is also stably suspended in the air using the hanger structure 90.

[0069] like Figures 4 to 6As shown, a wall support beam 51 is installed between the wall of the GIS equipment room 30 and the first shunt reactor room 50. This wall support beam 51 extends horizontally, and the middle portion of the wall support beam 51 has a ground clearance D1 of 8655 mm. Since the fourth pipe section 77 must pass through the wall between the GIS equipment room 30 and the first shunt reactor room 50 and avoid the wall support beam 51, the first B-phase pipe 72, the first A-phase pipe 71, and the first C-phase pipe 73 are arranged in this order from top to bottom within the fourth pipe section 77. The ground clearance D2 of the first B-phase pipe 72 is 7655 mm, the ground clearance D3 of the first A-phase pipe 71 is 6655 mm, and the ground clearance D4 of the first C-phase pipe 73 is 5655 mm. It should be noted that, in this document, the ground clearance of a pipe refers to the distance between the pipe axis and the ground.

[0070] like Figures 1 to 3 As shown, in the third pipe section 76, the first A-phase pipe body 71, the first B-phase pipe body 72 and the first C-phase pipe body 73 are arranged in a vertical row. Specifically, in the third pipe section 76, the first B-phase pipe body 72, the first A-phase pipe body 71 and the first C-phase pipe body 73 are arranged in sequence from top to bottom.

[0071] Specifically, the positional relationship between the tubes in the fourth pipe section 77 and the corresponding tubes in the third pipe section 76 in the vertical direction remains unchanged, but the first A-phase tube 71, the first B-phase tube 72 and the first C-phase tube 73 are not arranged in a vertical row, that is, they are arranged in the vertical direction according to the first B-phase tube 72, the first A-phase tube 71 and the first C-phase tube 73 and are located in the corresponding rooms.

[0072] like Figures 1 to 3 As shown, in the second pipe section 75, the first B-phase tube body 72 and the first A-phase tube body 71 are arranged in a row and the first B-phase tube body 72 is located above the first A-phase tube body 71, the first C-phase tube body 73 is located on the side of the first B-phase tube body 72 and the first A-phase tube body 71 away from the first GIS device 40, and the first C-phase tube body 73 is located below the first B-phase tube body 72.

[0073] Specifically, in the second pipe section 75, the first A-phase tube 71, the first B-phase tube 72, and the first C-phase tube 73 are arranged in two vertical rows, thereby changing the phase sequence of the first A-phase tube 71, the first B-phase tube 72, and the first C-phase tube 73 in the first and third pipe sections 74 and 76. Specifically, the first C-phase tube 73 is arranged in a separate row, the first A-phase tube 71 and the first B-phase tube 72 being in the same row. The first C-phase tube 73 is located to the left of the first A-phase tube 71 and the first B-phase tube 72. The ground clearance of the first C-phase tube 73 is raised to 8655 mm, while the ground clearance of the first A-phase tube 71 and the first B-phase tube 72 remains unchanged. That is, the first B-phase tube 72 is above the first A-phase tube 71. As a result, the phase sequence of the tubes from top to bottom becomes the first B-phase tube 72, the first A-phase tube 71, and the first C-phase tube 73.

[0074] like Figures 1 to 3 As shown, in the first pipe section 74, the first A-phase pipe body 71, the first B-phase pipe body 72, and the first C-phase pipe body 73 are arranged in a vertical row, with the first C-phase pipe body 73, the first B-phase pipe body 72, and the first A-phase pipe body 71 arranged sequentially from top to bottom. Since the first A-phase connecting end 411, the first B-phase connecting end 412, and the first C-phase connecting end 413 are arranged sequentially from left to right in the first connection end group 41, the first A-phase pipe body 71 is relatively low and can be connected first via the connecting pipe section extending in the vertical direction. The first C-phase pipe body 73 and the first B-phase pipe body 72 then extend to the right. The first B-phase pipe body 72 and the first B-phase connecting end 412 are then connected via the connecting pipe section. The first C-phase pipe body 73 then extends to the right. Finally, the first C-phase pipe body 73 and the first C-phase connecting end 413 are connected via the connecting pipe section, thereby making the overall pipe layout reasonable.

[0075] like Figures 4 to 6 As shown, the indoor substation structure also includes a raised folded pipe structure 80, which includes a horizontal pipe 81 and a first vertical pipe 82 and a second vertical pipe 83, respectively disposed at both ends of the horizontal pipe 81 and extending downward. The first vertical pipe 82 is connected to the first A-phase pipe body 71, the first B-phase pipe body 72, or the first C-phase pipe body 73 in the fourth pipe section 77, and the second vertical pipe 83 is connected to the second A-phase connecting end 611, the second B-phase connecting end 612, or the second C-phase connecting end 613. Specifically, because the distances from the ground to the pipe bodies of the three phase sequences in the fourth pipe section 77 are different, the lengths of the first vertical pipes 82 in the three rooms are also different. The heights from the ground to the horizontal pipes 81 in the three rooms are the same, and the lengths of the second vertical pipes 83 in the three rooms are also the same.

[0076] like Figures 1 to 6 as well as Figure 13 、 Figure 14As shown, the first A-phase pipe body 71 includes a plurality of pipe segments and a plurality of telescopic sleeves 78 arranged in sequence, with a telescopic sleeve 78 disposed between each pair of adjacent pipe segments. In the event of an earthquake, the telescopic sleeves 78 allow for a certain amount of relative displacement between the pipe segments, reducing the possibility of electrical connection failure between the pipe segments and ensuring that the pipe segments meet seismic resistance requirements.

[0077] Specifically, the multiple pipe segments include a first pipe 711 and a second pipe 712. The first pipe 711 extends through the wall between the GIS equipment room 30 and the first shunt reactor room 50. The second pipe 712 is located adjacent to the first pipe 711 and extends in the same direction. The multiple telescopic tubes 78 include a single-stage telescopic tube 781 and a multi-stage telescopic tube 782. The multi-stage telescopic tube 782 connects between the first and second pipes 711 and 712, while the single-stage telescopic tube 781 connects between multiple pipe segments other than the first and second pipes 711 and 712. The single-stage telescopic tube 781 enables a certain degree of relative displacement in the axial direction between adjacent pipe ends, while the multi-stage telescopic tube 782 enables a certain degree of relative displacement in both the axial and axial directions between adjacent pipe segments. The second pipe 712 is located within the first room 52, and the multi-stage telescopic tube 782 is also located within the first room 52.

[0078] The first B-phase tube body 72 and the first C-phase tube body 73 also include a plurality of tube segments and a plurality of telescopic sleeves 78 arranged in sequence. The structures of the first B-phase tube body 72 and the first C-phase tube body 73 are similar to those of the first A-phase tube body 71 and are not described again here.

[0079] In addition, if Figures 7 to 12 As shown, the indoor substation structure also includes: a second main transformer room 100, a second main transformer 110, a second GIS device 120, a second shunt reactor room 130, a second shunt reactor 140 and a second GIL pipe group 150; the second main transformer room 100 is adjacent to the first main transformer room 10, and the first main transformer room 10 and the second main transformer room 100 are located on the same side of the GIS equipment room 30; the second main transformer 110 is arranged in the second main transformer room 100; the second GIS device 120 is arranged in the GIS equipment room 30 and is connected to the first GIS device 4 0 are arranged adjacent to each other, the second GIS equipment 120 is electrically connected to the second main transformer 110 and has a third connection terminal group 121; the second shunt reactor chamber 130 is arranged adjacent to the GIS equipment chamber 30, and the second shunt reactor chamber 130 is arranged at a second edge position of the indoor substation structure; the second shunt reactor 140 is arranged in the second shunt reactor chamber 130 and has a fourth connection terminal group 141; the second GIL tube group 150 is connected between the third connection terminal group 121 and the fourth connection terminal group 141 to realize the electrical connection between the second GIS equipment 120 and the second shunt reactor 140.

[0080] Specifically, the second main transformer room 100 is located on the right side of the first main transformer room 10, the second main transformer room 100 and the first main transformer room 10 are located on the rear side of the GIS equipment room 30, the second GIS equipment 120 is located on the right side of the first GIS equipment 40, and the second shunt reactor room 130 is located on the right side of the second GIS equipment 120. The second shunt reactor room 130 has a fourth room 131, a fifth room 132 and a sixth room 133 independently arranged in sequence from front to back (that is, the second shunt reactor room 130 includes three compartments independently arranged in sequence along the first direction a), the second shunt reactor 140 includes a second A-phase reactor 142, a second B-phase reactor 143, and a second C-phase reactor 144. The second A-phase reactor 142 is arranged in the fourth room 131, the second B-phase reactor 143 is arranged in the fifth room 132, and the second C-phase reactor 144 is arranged in the sixth room 133. In addition, the "second edge position" refers to the rightmost edge position of the indoor substation structure.

[0081] like Figure 1 and 7 to Figure 9 As shown, fourth connection terminal group 141 is disposed on a side of second shunt reactor 140 that is close to GIS equipment room 30, and third connection terminal group 121 is disposed on a side of second GIS equipment 120 that is away from second shunt reactor room 130 in first direction a. Specifically, fourth connection terminal group 141 is disposed on the left side of second shunt reactor 140, and third connection terminal group 121 is disposed in front of first GIS equipment 40.

[0082] like Figure 1 and 7 to Figure 9As shown, the third connection end group 121 includes a third A-phase connection end 1211, a third B-phase connection end 1212 and a third C-phase connection end 1213 arranged in sequence from left to right, the fourth connection end group 141 includes a fourth A-phase connection end 1411, a fourth B-phase connection end 1412 and a fourth C-phase connection end 1413 arranged in sequence from front to back, and the second GIL tube group 150 includes a second A-phase tube body 151, a second B-phase tube body 152 and a second C-phase tube body 153. The second A-phase tube body 151 is connected between the third A-phase connection end 1211 and the fourth A-phase connection end 1411, the second B-phase tube body 152 is connected between the third B-phase connection end 1212 and the fourth B-phase connection end 1412, and the second C-phase tube body 153 is connected between the third C-phase connection end 1213 and the fourth C-phase connection end 1413. Specifically, the second A-phase tube body 151, the second B-phase tube body 152, and the second C-phase tube body 153 are independently arranged, which can reduce the possibility of interference between the three-phase tube bodies. When one or more phase tube bodies fail, the staff can quickly locate the corresponding phase tube body and perform inspection or maintenance on the phase tube body.

[0083] like Figure 1 and 7 to Figure 9 As shown, the first shunt reactor chamber 50 and the second shunt reactor chamber 130 are located on either side of the first GIS equipment 40 and the second GIS equipment 120, respectively, in a second direction b perpendicular to the first direction a. The second GIL pipe assembly 150 includes a fifth pipe segment 154, a sixth pipe segment 155, a seventh pipe segment 156, an eighth pipe segment 157, and a ninth pipe segment 158, arranged in sequence. The fifth pipe segment 154 extends along the second direction b and is connected to the third connection end group 121. Specifically, the fifth pipe segment 154 extends in the left-right direction. The left end of the fifth pipe segment 154 is connected to the third connection end group 121 via a connecting pipe body extending in the vertical direction. The fifth pipe segment 154 is located within the GIS equipment chamber 30.

[0084] like Figure 1 and 7 to Figure 9 As shown, sixth pipe section 155 extends along first direction a and is located on a side of second GIS equipment 120 in second direction b that is proximate to second shunt reactor 140. Specifically, sixth pipe section 155 extends along the front-to-back direction and is located to the right of second shunt reactor 140. Sixth pipe section 155 is located within GIS equipment room 30.

[0085] like Figure 1 and 7 to Figure 9As shown, the seventh pipe section 156 extends along the second direction b and is located near the wall between the second main transformer 110 and the GIS equipment room 30. Specifically, the seventh pipe section 156 extends in the left-right direction and is located in front of the second main transformer 110. The seventh pipe section 156 is located near the wall between the second main transformer 110 and the GIS equipment room 30 and passes through the wall between the GIS equipment room 30 and the second shunt reactor room 130.

[0086] like Figure 1 and 7 to Figure 10 As shown, eighth piping section 157 extends along first direction a and is located within second shunt reactor chamber 130. Specifically, eighth piping section 157 extends along the front-to-back direction and is disposed adjacent to the wall between second shunt reactor chamber 130 and second main transformer 110. Eighth piping section 157 also passes through the wall between fourth room 131 and fifth room 132, as well as the wall between fifth room 132 and sixth room 133.

[0087] like Figure 1 and 7 to Figure 12 As shown, the ninth pipe section 158 extends along the second direction b and is connected to the fourth connection end group 141. Specifically, the ninth pipe section 158 extends along the left-right direction and is connected to the fourth connection end group 141 through a connecting pipe body extending along the up-down direction.

[0088] like Figure 8 as well as Figure 9 As shown, sixth piping section 155 includes an elevated section 1551 to elevate second GIL tube assembly 150 above fourth connection terminal assembly 141. Since GIS equipment room 30 is relatively large, while fourth room 131, fifth room 132, and sixth room 133 are relatively small, and the shunt reactors are large, the space within fourth room 131, fifth room 132, and sixth room 133 is relatively narrow, making it difficult to arrange complex pipes there. Therefore, elevated section 1551 is provided in sixth piping section 155, elevating the pipes before they enter second shunt reactor chamber 130, allowing them to connect to fourth connection terminal assembly 141 upon subsequent entry.

[0089] like Figure 1 and 7 to Figure 10As shown, in the fifth pipe section 154 and the sixth pipe section 155, the second A-phase pipe body 151, the second B-phase pipe body 152 and the second C-phase pipe body 153 are arranged in a vertical row, that is, the second A-phase pipe body 151, the second B-phase pipe body 152 and the second C-phase pipe body 153 are stacked in the up and down direction to form a row; in the seventh pipe section 156, the second B-phase pipe body 152 and the second C-phase pipe body 153 are arranged in a vertical row, and the second A-phase pipe body 151 and the second B-phase pipe body 152 are arranged side by side or with the second C-phase pipe body 153. The bodies 153 are arranged side by side so that the second A-phase tube body 151 extends toward the fourth A-phase connecting end 1411, and the second B-phase tube body 152 and the second C-phase tube body 153 are stacked in the up-down direction to form a row, and the second A-phase tube body 151 is located in front of the second B-phase tube body 152 and the second C-phase tube body 153; in the eighth pipe section 157, the second B-phase tube body 152 and the second C-phase tube body 153 are arranged in a vertical row, that is, the second B-phase tube body 152 and the second C-phase tube body 153 are stacked in the up-down direction to form a row.

[0090] like Figure 1 and 7 to Figure 10 As shown, in fifth pipe section 154, second A-phase pipe body 151, second B-phase pipe body 152, and second C-phase pipe body 153 are arranged sequentially from top to bottom. Specifically, in fifth pipe section 154, second A-phase pipe body 151 has a ground clearance of 8655 mm, second B-phase pipe body 152 has a ground clearance of 7655 mm, and second C-phase pipe body 153 has a ground clearance of 6655 mm.

[0091] like Figure 1 and 7 to Figure 10 As shown, in the sixth pipe section 155, the second A-phase pipe body 151, the second B-phase pipe body 152 and the second C-phase pipe body 153 are arranged in sequence from top to bottom. Specifically, in the sixth pipe section 155, the second B-phase pipe body 152 is raised to 10655 mm by the raising section 1551, the second A-phase pipe body 151 is raised to 9655 mm by the raising section 1551, and the second C-phase pipe body 153 is raised to 9655 mm by the raising section 1551.

[0092] like Figure 1 and 7 to Turu Figure 1 and 7 to Figure 10 As shown in FIG10 , in the seventh pipe section 156 , the second B-phase pipe body 152 and the second C-phase pipe body 153 are arranged relative to the second A-phase pipe body 151 near the wall between the second main transformer 110 and the GIS equipment room 30, and the second B-phase pipe body 152 is located above the second C-phase pipe body 153. Specifically, the second B-phase pipe body 152 and the second C-phase pipe body 153 are located on the rear side of the second A-phase pipe body 151.

[0093] like Figure 1 and 7 to Figure 12 As shown, in the eighth pipe section 157, the second B-phase pipe body 152 is located above the second C-phase pipe body 153. The ninth pipe section 158 extends in the left-right direction, and the right end of the ninth pipe section 158 is connected to the fourth connection end group 141 through a connecting pipe body extending in the up-down direction.

[0094] In addition, in this embodiment, the first main transformer and the second main transformer 110 are 550 kV transformers; the first GIS device 40 and the second GIS device 120 are 550 kV GIS devices; the first shunt reactor 60 and the second shunt reactor 140 are 550 kV shunt reactors, so that the above devices can be applied to 550 kV indoor substations.

[0095] By applying the technical solution of this embodiment and adopting the direct connection method of GIL pipeline, the layout of indoor substations in physical space is simplified, the floor space and construction cost are reduced, the requirements for inspection and maintenance fire passages are met, and the seismic design requirements are met; the difficulty of the current indoor layout of high-voltage shunt reactors is solved; the two sets of indoor high-voltage shunt reactors occupy approximately 1,000 square meters, compressing the longitudinal dimensions; and the substation layout can be made more neat and beautiful.

[0096] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0097] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0098] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0099] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An indoor substation structure, characterized in that: include: First main transformer room (10); A first main transformer is arranged in a first main transformer chamber (10); A GIS equipment room (30) is provided adjacent to the first main transformer room (10); A first GIS device (40) is disposed in the GIS device room (30), the first GIS device (40) being electrically connected to the first main transformer and having a first connection terminal group (41); A first shunt reactor room (50) is arranged adjacent to the GIS equipment room (30), wherein the first main transformer room (10), the GIS equipment room (30) and the first shunt reactor room (50) are arranged in sequence in a first direction a, and the first shunt reactor room (50) is arranged at a first edge position of the indoor substation structure; A first shunt reactor (60) is disposed in the first shunt reactor chamber (50) and has a second connection terminal group (61); The first GIL tube group (70) is connected between the first connection terminal group (41) and the second connection terminal group (61) to achieve electrical connection between the first GIS device (40) and the first shunt reactor (60).

2. The indoor substation structure according to claim 1, characterized in that: The second connection terminal group (61) is arranged on a side of the first shunt reactor (60) close to the GIS equipment room (30), and the first connection terminal group (41) is arranged on a side of the first GIS equipment (40) away from the first shunt reactor room (50) in the first direction a.

3. The indoor substation structure according to claim 2, characterized in that: The first connection end group (41) includes a first A-phase connection end (411), a first B-phase connection end (412), and a first C-phase connection end (413) arranged in sequence from left to right; the second connection end group (61) includes a second A-phase connection end (611), a second B-phase connection end (612), and a second C-phase connection end (613) arranged in sequence from left to right; the first GIL tube group (70) includes a first A-phase tube body (71), a first B-phase tube body (72), and a first C-phase tube body (73); the first A-phase tube body (71) is connected between the first A-phase connection end (411) and the second A-phase connection end (611); the first B-phase tube body (72) is connected between the first B-phase connection end (412) and the second B-phase connection end (612); and the first C-phase tube body (73) is connected between the first C-phase connection end (413) and the second C-phase connection end (613).

4. The indoor substation structure according to claim 3, characterized in that: The first shunt reactor (60) and the first GIS device (40) are spaced apart in a second direction b perpendicular to the first direction a. The first GIL pipe group (70) includes a first pipe section (74), a second pipe section (75), a third pipe section (76), and a fourth pipe section (77) arranged in sequence. The first pipe section (74) extends along the second direction b and is connected to the first connection end group (41). The second pipe section (75) extends along the first direction a and is located near the first shunt reactor of the first GIS device (40). (60), the third pipe section (76) extends along the second direction b and is located on the side of the first shunt reactor (60) close to the GIS equipment room (30), and the fourth pipe section (77) extends along the first direction a and is connected to the second connection end group (61), wherein the first pipe section (74), the second pipe section (75), and the third pipe section (76) are all located in the GIS equipment room (30), and the fourth pipe section (77) passes through the wall between the GIS equipment room (30) and the first shunt reactor room (50).

5. The indoor substation structure according to claim 4, characterized in that: In the first pipe section (74) and the third pipe section (76), the first A-phase pipe body (71), the first B-phase pipe body (72) and the first C-phase pipe body (73) are arranged in a vertical row, and in the second pipe section (75), the first A-phase pipe body (71), the first B-phase pipe body (72) and the first C-phase pipe body (73) are arranged in two vertical rows, so as to change the phase sequence of the first A-phase pipe body (71), the first B-phase pipe body (72) and the first C-phase pipe body (73) in the first pipe section (74) and the third pipe section (76).

6. The indoor substation structure according to claim 5, characterized in that: In the first pipe section (74), the first C-phase pipe body (73), the first B-phase pipe body (72), and the first A-phase pipe body (71) are arranged in sequence from top to bottom. In the second pipe section (75), the first B-phase pipe body (72) and the first A-phase pipe body (71) are arranged in a row and the first B-phase pipe body (72) is located above the first A-phase pipe body (71). The first C-phase pipe body (73) is located on the side of the first B-phase pipe body (72) and the first A-phase pipe body (71) away from the first GIS device (40). The first C-phase pipe body (73) is located below the first B-phase pipe body (72). In the third pipe section (76), the first B-phase pipe body (72), the first A-phase pipe body (71), and the first C-phase pipe body (73) are arranged in sequence from top to bottom.

7. The indoor substation structure according to claim 4, characterized in that: The indoor substation structure further includes a lifting folded pipe structure (80), which includes a horizontal pipe (81) and a first vertical pipe (82) and a second vertical pipe (83) respectively arranged at both ends of the horizontal pipe (81) and extending downward. The first vertical pipe (82) is connected to the first A-phase pipe body (71), the first B-phase pipe body (72), or the first C-phase pipe body (73) in the fourth pipe section (77), and the second vertical pipe (83) is connected to the second A-phase connecting end (611), the second B-phase connecting end (612), or the second C-phase connecting end (613).

8. The indoor substation structure according to claim 3, characterized in that: The first A-phase tube body (71) comprises a plurality of tube body segments and a plurality of telescopic sleeves (78) arranged in sequence, with a telescopic sleeve (78) being provided between each two adjacent tube body segments.

9. The indoor substation structure according to claim 8, characterized in that: The plurality of pipe sections include a first pipe (711) and a second pipe (712), the first pipe (711) passing through the wall between the GIS equipment room (30) and the first shunt reactor room (50), the second pipe (712) being arranged adjacent to the first pipe (711) and extending in the same direction, and the plurality of telescopic sleeves (78) including a single-stage telescopic tube (781) and a multi-stage telescopic tube (782), wherein the multi-stage telescopic tube (782) is connected between the first pipe (711) and the second pipe (712), and the single-stage telescopic tube (781) is connected between the plurality of pipe sections other than the first pipe (711) and the second pipe (712).

10. The indoor substation structure according to any one of claims 1 to 9, characterized in that: The indoor substation structure further includes a hanger structure (90) connected to the top wall of the GIS equipment room (30) and / or the top wall of the first shunt reactor room (50), and the first GIL tube group (70) is passed through the lower end of the hanger structure (90).

11. The indoor substation structure according to any one of claims 1 to 9, characterized in that: The indoor substation structure also includes: The second main transformer room (100) is arranged adjacent to the first main transformer room (10), and the first main transformer room (10) and the second main transformer room (100) are located on the same side of the GIS equipment room (30); A second main transformer (110) is arranged in the second main transformer chamber (100); A second GIS device (120) is disposed in the GIS device room (30) and adjacent to the first GIS device (40); the second GIS device (120) is electrically connected to the second main transformer (110) and has a third connection terminal group (121); A second shunt reactor chamber (130) is provided adjacent to the GIS equipment chamber (30), and the second shunt reactor chamber (130) is provided at a second edge position of the indoor substation structure; A second shunt reactor (140) is disposed in the second shunt reactor chamber (130) and has a fourth connection terminal group (141); The second GIL tube group (150) is connected between the third connection terminal group (121) and the fourth connection terminal group (141) to achieve electrical connection between the second GIS device (120) and the second shunt reactor (140).

12. The indoor substation structure according to claim 11, characterized in that: The fourth connection terminal group (141) is arranged on a side of the second shunt reactor (140) close to the GIS equipment room (30), and the third connection terminal group (121) is arranged on a side of the second GIS equipment (120) away from the second shunt reactor room (130) in the first direction a.

13. The indoor substation structure according to claim 12, characterized in that: The third connection end group (121) includes a third A phase connection end (1211), a third B phase connection end (1212) and a third C phase connection end (1213) arranged in sequence from left to right; the fourth connection end group (141) includes a fourth A phase connection end (1411), a fourth B phase connection end (1412) and a fourth C phase connection end (1413) arranged in sequence from front to back; the second GIL tube group (150) includes a second A phase tube body (151), a third B phase connection end (1212) and a fourth C phase connection end (1413) arranged in sequence from front to back; Two B-phase tube bodies (152) and a second C-phase tube body (153), the second A-phase tube body (151) is connected between the third A-phase connection end (1211) and the fourth A-phase connection end (1411), the second B-phase tube body (152) is connected between the third B-phase connection end (1212) and the fourth B-phase connection end (1412), and the second C-phase tube body (153) is connected between the third C-phase connection end (1213) and the fourth C-phase connection end (1413).

14. The indoor substation structure according to claim 13, characterized in that: The first shunt reactor chamber (50) and the second shunt reactor chamber (130) are respectively located on both sides of the first GIS device (40) and the second GIS device (120) in a second direction b perpendicular to the first direction a. The second GIL pipe group (150) includes a fifth pipe section (154), a sixth pipe section (155), a seventh pipe section (156), an eighth pipe section (157) and a ninth pipe section (158) arranged in sequence. The fifth pipe section (154) extends along the second direction b and is connected to the third connection end group (121). The sixth pipe section (155) extends along the first direction a and is located on a side of the second GIS device (120) close to the second shunt reactor (140) in the second direction b. The seventh pipe section (156) is located on the side of the second GIS device (120) close to the second shunt reactor (140) in the second direction b. ) extends along the second direction b and is arranged close to the wall between the second main transformer (110) and the GIS equipment room (30), the eighth pipe section (157) extends along the first direction a and is located in the second shunt reactor room (130), the ninth pipe section (158) extends along the second direction b and is connected to the fourth connection end group (141), wherein the fifth pipe section (154) and the sixth pipe section (155) are located in the GIS equipment room (30), the seventh pipe section (156) passes through the wall between the GIS equipment room (30) and the second shunt reactor room (130), the second shunt reactor room (130) includes three compartments arranged independently in sequence along the first direction a, and the eighth pipe section (157) passes through the wall between adjacent compartments.

15. The indoor substation structure according to claim 14, characterized in that: The sixth pipe laying section (155) has a lifting section (1551) to lift the second GIL tube group (150) above the fourth connection end group (141).

16. The indoor substation structure according to claim 14, characterized in that: In the fifth pipe section (154) and the sixth pipe section (155), the second A-phase pipe body (151), the second B-phase pipe body (152) and the second C-phase pipe body (153) are arranged in a vertical row. In the seventh pipe section (156), the second B-phase pipe body (152) and the second C-phase pipe body (153) are arranged in a vertical row. The second A-phase pipe body (151) is arranged side by side with the second B-phase pipe body (152) or side by side with the second C-phase pipe body (153) so that the second A-phase pipe body (151) extends toward the fourth A-phase connecting end (1411). In the eighth pipe section (157), the second B-phase pipe body (152) and the second C-phase pipe body (153) are arranged in a vertical row.

17. The indoor substation structure according to claim 16, characterized in that: In the fifth pipe section (154) and the sixth pipe section (155), the second A-phase pipe body (151), the second B-phase pipe body (152) and the second C-phase pipe body (153) are arranged in sequence from top to bottom. In the seventh pipe section (156), the second B-phase pipe body (152) and the second C-phase pipe body (153) are arranged relative to the second A-phase pipe body (151) and close to the wall between the second main transformer (110) and the GIS equipment room (30). The second B-phase pipe body (152) is located above the second C-phase pipe body (153). In the eighth pipe section (157), the second B-phase pipe body (152) is located above the second C-phase pipe body (153).

18. The indoor substation structure according to claim 11, characterized in that: The first main transformer and the second main transformer (110) are 550kV transformers; The first GIS device (40) and the second GIS device (120) are 550 kV GIS devices; The first shunt reactor (60) and the second shunt reactor (140) are 550 kV shunt reactors.

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