Intelligent power grid assembly type transformer substation

Abstract

The invention belongs to the technical field of power transformation equipment, particularly relates to an intelligent power grid assembly type transformer substation, and aims to solve the problems that the existing transformer substation equipment is not modularized in structure, complex in function and low in installation efficiency, and provides the following scheme that the intelligent power grid assembly type transformer substation comprises a main shell, and a sealing top cover is fixed to the top of the main shell through bolts; three winding iron cores are fixed to the middle of the sealing top cover, an oil circulating machine box is installed on one side of the sealing top cover, an oil filtering machine box is installed on the other side of the sealing top cover, and sealing between the oil circulating machine box and the main shell and between the oil filtering machine box and the main shell is achieved through an active sealing mechanism. And an oil immersion chamber is formed in the main shell. The oil circulating case and the oil filtering case are installed in the mode that the tops of the oil circulating case and the oil filtering case are inserted into the module side fixing frame, the installation efficiency and the matching degree between structural parts are improved through the modular structural design, and diversified assembling modes can be achieved.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and in particular to a smart grid prefabricated substation. Background Technology

[0002] A substation is a place in a power system that transforms voltage and current, receives electrical energy, and distributes electrical energy. Substations in power plants are step-up substations, whose function is to step up the electrical energy generated by the generator and feed it into the high-voltage power grid. Existing substations are reinforced concrete structures, and the substation equipment in the current technology is limited by structural requirements.

[0003] For example, Chinese patent document CN220325102U discloses a modular substation, including a substation and a support mechanism. The outer surface of the substation has ventilation openings, a support plate is fixedly connected to the bottom surface of the substation, a support mechanism is provided on the outer surface of the support plate, a heat dissipation mechanism is provided on the outer surface of the substation, and copper nails are fixedly connected to one end of the copper column. The above-disclosed technology has the following problems: the installation structure of the substation equipment in the prior art is too complex, the overall structural design cannot achieve the matching installation of various structural functional components, and the installation process is too complicated, failing to improve the efficiency of substation installation. Existing technologies do not easily solve these problems; therefore, there is an urgent need for smart grid prefabricated substations to address these issues. Summary of the Invention

[0004] Based on the technical problems of current substation equipment being non-modular, having complex structures and functions, and having low installation efficiency, this invention proposes a smart grid prefabricated substation.

[0005] This invention proposes a smart grid prefabricated substation, comprising a main housing, a sealed top cover fixed to the top of the main housing by bolts, three sets of winding cores fixed in the middle of the sealed top cover, an oil circulation chamber installed on one side of the sealed top cover, and an oil filter chamber installed on the other side of the sealed top cover. The oil circulation chamber and the oil filter chamber are sealed to the main housing by an active sealing mechanism. An oil immersion chamber is provided inside the main housing and is connected to the interior of the oil circulation chamber and the oil filter chamber. Module side fixing frames are provided on both sides of the main housing. The oil circulation chamber and the oil filter chamber are respectively inserted into the module side fixing frames on both sides. Lifting components are provided at both ends of the module side fixing frames. A sealed top plate is fixed to the top of the module side fixing frames by bolts.

[0006] Preferably, the lifting assembly includes a vertically arranged lifting side groove opened at one end of the module side fixing frame, a vertically arranged lifting screw is installed at the bottom of the lifting side groove through a bearing, and a supporting side plate is slidably installed inside the lifting side groove. The supporting side plate is threadedly installed between the lifting screw and the lifting side groove.

[0007] Preferably, a first drive motor is fixed to the bottom of the module side fixing frame, the output shaft of the first drive motor is fixed to the bottom of the lifting screw, and two rows of bolt holes are arranged in an array at the bottom of the supporting side plate.

[0008] Preferably, a partition is fixed in the middle of the oil circulation chamber, and there is a gap between the partition and the inner wall of the oil circulation chamber. Blade frames are fixed at the top and bottom of the partition inside the oil circulation chamber. A first oil circulation blade is installed in the middle of the blade frame at the top via a bearing, and a second oil circulation blade is installed in the middle of the blade frame at the bottom via a bearing. The first oil circulation blade and the second oil circulation blade rotate in opposite directions.

[0009] Preferably, the oil filter box has an oil chamber inside, and a first hole is opened on the top of the oil filter box. An oil adding pipe valve is fixed on the top of the first hole of the oil filter box. The oil adding pipe valve is connected to the inside of the oil filter box, and a sealing cover is fixed on the top of the oil adding pipe valve.

[0010] Preferably, a vertically arranged oil filter plate is fixed inside the oil filter box, an oil inlet screen is provided at the bottom of the oil filter plate, an oil filter screen is provided at the top of the oil filter plate, and a circulating pump is also installed inside the oil filter box.

[0011] Preferably, the active sealing mechanism includes a slot opened inside the module-side fixing frame, and side blocks are provided on the side walls of the oil circulation box and the oil filter box. The side blocks are matched and inserted into the slot. A sealing block slot is opened in the middle of the side blocks. A sealing block is installed inside the sealing block slot. The sealing block is floating.

[0012] Preferably, a sealing gap is formed between the side wall of the sealing block and the inner wall of the slot of the module side fixing frame, the other side of the sealing block is provided with a chamfer, and a movable locking block is installed inside the slot of the sealing block, the movable locking block being matched and installed with one side of the chamfer of the sealing block.

[0013] Preferably, the side wall of the movable locking block has a second hole, and a lead screw connecting seat is installed in the second hole. The oil circulation box has a locking lead screw mounting hole and a worm shaft groove at the top of the side block. The locking lead screw mounting hole and the worm shaft groove are internally connected. A bearing seat is fixed inside the locking lead screw mounting hole. A locking lead screw is installed in the middle of the bearing seat through a bearing. The screw of the locking lead screw is threadedly fitted with the lead screw connecting seat. A locking gear is fixed at one end of the locking lead screw.

[0014] Preferably, a vertically arranged worm shaft is mounted on the bottom of the worm shaft groove via a bearing, a worm structure is fixed at the middle position of the worm shaft, the worm structure is meshed and matched with a locking gear, and a locking nut is fixed on the top of the worm shaft, with the top of the locking nut matched and installed with the top of the worm shaft groove via a bearing.

[0015] The beneficial effects of this invention are as follows: In this smart grid prefabricated substation, the oil circulation box and oil filter box are installed by inserting them into the module side fixing frame from the top. The modular structure design improves the installation efficiency and the matching degree between structural components, and can realize a variety of assembly methods.

[0016] This smart grid prefabricated substation achieves sealing by tightening the top locking nut to push the sealing block. During the tightening process, the worm gear structure rotates, driving the locking gear to rotate, and the locking screw pushes the movable locking block forward. The wedge-shaped structure pushes the sealing block to move, gradually reducing the sealing gap and maintaining a seal between the oil circulation box and the oil filter box and the module side fixing frame. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a smart grid prefabricated substation proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of the main shell of a smart grid prefabricated substation proposed in this invention; Figure 3 This invention proposes a prefabricated substation for smart grids. Figure 2 Enlarged schematic diagram of part A of the structure; Figure 4 This is a schematic diagram of the internal structure of the oil circulation cabinet of a smart grid prefabricated substation proposed in this invention. Figure 5 This invention proposes a prefabricated substation for smart grids. Figure 4 Enlarged schematic diagram of part B of the structure; Figure 6This is a schematic diagram of the internal structure of the oil filter box of a smart grid prefabricated substation proposed in this invention.

[0018] In the diagram: 1. Main housing; 2. Sealed top cover; 3. Winding core; 4. Module side fixing frame; 5. Sealed top plate; 6. Oil circulation box; 7. Oil filter box; 8. Oil adding pipe valve; 9. Oil immersion chamber; 10. Supporting side plate; 11. Side locking block; 12. Sealing block slot; 13. Sealing block; 14. Movable locking block; 15. Lifting side groove; 16. Lifting screw; 17. Sealing gap; 18. Locking nut; 19. Partition plate; 20. First oil circulation blade; 21. Second oil circulation blade; 22. Screw connecting seat; 23. Locking screw mounting hole; 24. Locking screw; 25. Worm shaft; 26. Worm structure; 27. Locking gear; 28. Worm shaft groove; 29. ​​Bearing seat; 30. Oil filter plate; 31. Oil inlet screen plate; 32. Oil filter screen plate. Detailed Implementation

[0019] Reference Figures 1-6 A smart grid prefabricated substation includes a main housing 1. A sealing top cover 2 is bolted to the top of the main housing 1. Three sets of winding iron cores 3 are fixed in the middle of the sealing top cover 2. An oil circulation box 6 is installed on one side of the sealing top cover 2, and an oil filter box 7 is installed on the other side of the sealing top cover 2. The oil circulation box 6 and the oil filter box 7 are sealed to the main housing 1 by an active sealing mechanism. An oil immersion chamber 9 is opened inside the main housing 1, and the oil immersion chamber 9 is connected to the interior of the oil circulation box 6 and the oil filter box 7. Module side fixing frames 4 are provided on both sides of the main housing 1. The oil circulation box 6 and the oil filter box 7 are respectively inserted into the module side fixing frames 4 on both sides. Lifting components are provided at both ends of the module side fixing frames 4. A sealing top plate 5 is bolted to the top of the module side fixing frames 4.

[0020] Furthermore, the lifting assembly includes a vertically arranged lifting side groove 15 opened at one end of the module side fixing frame 4. A vertically arranged lifting screw 16 is installed at the bottom of the lifting side groove 15 through a bearing. A supporting side plate 10 is also slidably installed inside the lifting side groove 15. The supporting side plate 10 is threadedly installed between the position inside the lifting side groove 15 and the lifting screw 16.

[0021] Furthermore, a first drive motor is fixed to the bottom of the module side fixing bracket 4, and the output shaft of the first drive motor is fixed to the bottom of the lifting screw 16. Two rows of bolt holes are provided at the bottom of the supporting side plate 10.

[0022] Furthermore, a partition 19 is fixed in the middle of the oil circulation housing 6, and there is a gap between the partition 19 and the inner wall of the oil circulation housing 6. Blade frames are fixed at the top and bottom of the partition 19 inside the oil circulation housing 6. The first oil circulation blade 20 is installed in the middle of the blade frame at the top through a bearing, and the second oil circulation blade 21 is installed in the middle of the blade frame at the bottom through a bearing. The first oil circulation blade 20 and the second oil circulation blade 21 rotate in opposite directions.

[0023] Furthermore, the oil filter box 7 has an oil chamber inside, and a first hole is opened on the top of the oil filter box 7. An oil adding pipe valve 8 is fixed on the top of the first hole of the oil filter box 7. The oil adding pipe valve 8 is connected to the interior of the oil filter box 7, and a sealing cover is fixed on the top of the oil adding pipe valve 8.

[0024] Furthermore, a vertically arranged oil filter plate 30 is fixed inside the oil filter housing 7. An oil inlet screen plate 31 is provided at the bottom of the oil filter plate 30, and an oil filter screen plate 32 is provided at the top of the oil filter plate 30. A circulating pump is also installed inside the oil filter housing 7.

[0025] Furthermore, the active sealing mechanism includes a slot opened inside the module side fixing frame 4, and side blocks 11 are provided on the side walls of the oil circulation box 6 and the oil filter box 7. The side blocks 11 are matched and inserted into the slot. A sealing block slot 12 is opened in the middle of the side blocks 11. A sealing block 13 is installed inside the sealing block slot 12. The sealing block 13 is floating.

[0026] Furthermore, a sealing gap 17 is formed between the side wall of the sealing block 13 and the inner wall of the slot of the module side fixing bracket 4. A chamfer is provided on the other side of the sealing block 13, and a movable locking block 14 is installed inside the sealing block slot 12. The movable locking block 14 is matched and installed with one side of the chamfer of the sealing block 13.

[0027] Furthermore, the side wall of the movable locking block 14 is provided with a second hole, and a screw connecting seat 22 is installed in the second hole. The oil circulation box 6 is provided with a locking screw mounting hole 23 and a worm shaft groove 28 on the top of the side block 11. The locking screw mounting hole 23 and the worm shaft groove 28 are connected internally. A bearing seat 29 is fixed inside the locking screw mounting hole 23. A locking screw 24 is installed in the middle position of the bearing seat 29 through a bearing. The screw position of the locking screw 24 is threadedly fitted with the screw connecting seat 22. A locking gear 27 is fixed at one end of the locking screw 24.

[0028] Furthermore, a vertically arranged worm shaft 25 is mounted on the bottom of the worm shaft groove 28 via a bearing. A worm structure 26 is fixed in the middle of the worm shaft 25. The worm structure 26 is meshed and matched with the locking gear 27. A locking nut 18 is fixed on the top of the worm shaft 25, and the top of the locking nut 18 is matched and installed with the top of the worm shaft groove 28 via a bearing.

[0029] In use, the main housing 1 and its internal electrical structure are installed. After installation, the oil circulation chamber 6 and oil filter chamber 7 on both sides are installed. During installation and disassembly of the oil circulation chamber 6 and oil filter chamber 7, the lifting components on both sides assist in raising and lowering the oil circulation chamber 6 and oil filter chamber 7 by driving the two supporting side plates 10 through the lifting screw 16. A support plate is installed at the bottom of the two supporting side plates 10. After installing the oil circulation chamber 6 and oil filter chamber 7 inside the module-side fixing brackets 4 on both sides of the main housing 1, the sealing block 13 is pushed to achieve sealing by tightening the top locking nut 18. During tightening, the worm gear structure 26 rotates, driving... The locking gear 27 rotates, pushing the movable locking block 14 forward through the locking screw 24. The wedge-shaped structure pushes the sealing block 13 to move, gradually reducing the sealing gap 17 and maintaining a seal between the oil circulation box 6 and the oil filter box 7 and the module side fixing frame 4. After installation, cooling oil is added through the oil adding pipe valve 8. During operation, the first oil circulation blade 20 and the second oil circulation blade 21 are both driven by motors, and the two rotate in opposite directions to circulate the internal cooling oil. The oil circulation pump installed inside the oil filter box 7 draws in cooling oil through the bottom oil inlet screen 31 and discharges it into the oil immersion chamber 9 through the top oil filter screen 32, maintaining the effect of removing impurities from the cooling oil.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A smart grid prefabricated substation, comprising a main housing (1), wherein a sealing top cover (2) is bolted to the top of the main housing (1), and three sets of winding cores (3) are fixed to the middle position of the sealing top cover (2), characterized in that, An oil circulation chamber (6) is installed on one side of the sealing top cover (2), and an oil filter chamber (7) is installed on the other side of the sealing top cover (2). The oil circulation chamber (6) and the oil filter chamber (7) are sealed to the main housing (1) through an active sealing mechanism. An oil immersion chamber (9) is provided inside the main housing (1), and the oil immersion chamber (9) is connected to the interior of the oil circulation chamber (6) and the oil filter chamber (7). Module side fixing frames (4) are provided on both sides of the main housing (1). The oil circulation chamber (6) and the oil filter chamber (7) are respectively inserted into the module side fixing frames (4) on both sides. Lifting components are provided at both ends of the module side fixing frames (4). A sealing top plate (5) is fixed to the top of the module side fixing frame (4) by bolts.

2. The smart grid prefabricated substation according to claim 1, characterized in that, The lifting assembly includes a vertically arranged lifting side groove (15) opened at one end of the module side fixing frame (4). A vertically arranged lifting screw (16) is installed at the bottom of the lifting side groove (15) through a bearing. A supporting side plate (10) is also slidably installed inside the lifting side groove (15). The supporting side plate (10) is threadedly installed between the position of the supporting side plate (10) inside the lifting side groove (15) and the lifting screw (16).

3. A smart grid prefabricated substation according to claim 2, characterized in that, The bottom of the module side fixing bracket (4) is fixed with a first drive motor. The output shaft of the first drive motor is fixed to the bottom of the lifting screw (16). The bottom of the supporting side plate (10) is provided with two rows of arrayed bolt holes.

4. A smart grid prefabricated substation according to claim 1, characterized in that, A partition (19) is fixed in the middle of the oil circulation box (6), and there is a gap between the partition (19) and the inner wall of the oil circulation box (6). Paddle frames are fixed at the top and bottom of the partition (19) inside the oil circulation box (6). A first oil circulation paddle (20) is installed in the middle of the paddle frame at the top through a bearing, and a second oil circulation paddle (21) is installed in the middle of the paddle frame at the bottom through a bearing. The first oil circulation paddle (20) and the second oil circulation paddle (21) rotate in opposite directions.

5. A smart grid prefabricated substation according to claim 1, characterized in that, The oil filter box (7) is provided with an oil chamber inside, and the top of the oil filter box (7) is provided with a first hole. An oil adding pipe valve (8) is fixed on the top of the first hole of the oil filter box (7). The oil adding pipe valve (8) is connected to the inside of the oil filter box (7), and a sealing cover is fixed on the top of the oil adding pipe valve (8).

6. A smart grid prefabricated substation according to claim 5, characterized in that, The oil filter box (7) is fixed with a vertically arranged oil filter plate (30). An oil inlet screen plate (31) is provided at the bottom of the oil filter plate (30), and an oil filter screen plate (32) is provided at the top of the oil filter plate (30). A circulating pump is also installed inside the oil filter box (7).

7. A smart grid prefabricated substation according to claim 1, characterized in that, The active sealing mechanism includes a slot on the inner side of the module side fixing frame (4), and side blocks (11) are provided on the side walls of the oil circulation box (6) and the oil filter box (7). The side blocks (11) are matched and inserted into the slot. A sealing block slot (12) is provided in the middle of the side blocks (11). A sealing block (13) is installed inside the sealing block slot (12). The sealing block (13) is floating.

8. A smart grid prefabricated substation according to claim 7, characterized in that, A sealing gap (17) is formed between the side wall of the sealing block (13) and the inner wall of the slot of the module side fixing frame (4). A chamfer is provided on the other side of the sealing block (13), and a movable locking block (14) is installed inside the sealing block slot (12). The movable locking block (14) is matched with one side of the chamfer of the sealing block (13).

9. A smart grid prefabricated substation according to claim 8, characterized in that, The side wall of the movable locking block (14) is provided with a second hole, and a screw connecting seat (22) is installed in the second hole. The oil circulation box (6) is provided with a locking screw mounting hole (23) and a worm shaft groove (28) at the top of the side block (11). The locking screw mounting hole (23) and the worm shaft groove (28) are connected internally. A bearing seat (29) is fixed inside the locking screw mounting hole (23). A locking screw (24) is installed in the middle position of the bearing seat (29) through a bearing. The screw position of the locking screw (24) is threadedly fitted with the screw connecting seat (22). A locking gear (27) is fixed at one end of the locking screw (24).

10. A smart grid prefabricated substation according to claim 9, characterized in that, The bottom of the worm shaft groove (28) is fitted with a vertically arranged worm shaft (25) via a bearing. A worm structure (26) is fixed in the middle of the worm shaft (25). The worm structure (26) is meshed with a locking gear (27). A locking nut (18) is fixed to the top of the worm shaft (25), and the top of the locking nut (18) is matched with the top of the worm shaft groove (28) via a bearing.

Images