Detachable preassembled box-type transformer substation

Abstract

The embodiment of the invention relates to the technical field of transformer substations, and provides a detachable preassembled box-type transformer substation which comprises a hollow bottom frame, a bottom air inlet box, an air inlet partition plate and an air suction adjusting mechanism, a hollow middle frame is detachably communicated with the hollow bottom frame in a sealed mode, and a hollow top frame is detachably arranged on the hollow middle frame in a sealed mode. An equipment installation cavity is formed among the hollow bottom frame, the hollow middle frame and the hollow top frame, the bottom air inlet box is arranged at the bottom of the hollow bottom frame in a sealed mode, the air inlet cooling assembly is installed on the bottom air inlet box and communicated with the hollow bottom frame and the equipment installation cavity, and the air inlet partition plate is arranged on the hollow top frame in a sealed mode. The air suction adjusting mechanism is arranged on the hollow top frame in a sealed and communicated mode. According to the technical scheme, the problem of poor heat dissipation efficiency in daily use of the detachable box-type transformer substation in the prior art is solved.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the technical field of substations, and in particular, to a detachable pre-installed box-type substation. Background Art

[0002] In the power system, box-type substations are a complete set of distribution devices that combine high-voltage switchgear, power transformers and low-voltage distribution devices in a box according to different wiring methods. Due to their advantages such as small footprint and easy installation, they are widely used in scenarios such as urban network construction and transformation, mines, factories and enterprises, oil and gas fields, and wind power stations.

[0003] At present, most box-type substations on the market adopt a fully enclosed operating structure. Although this structure can effectively prevent dust, rodents and theft, and to a certain extent protect the operating environment of internal electrical equipment, in actual use, the internal transformers, circuit breakers, contactors and other electrical equipment will generate a lot of heat when they are in continuous operation. Since the internal space of the box-type substation is relatively limited and the equipment is relatively densely arranged, this heat is difficult to dissipate quickly in the enclosed space, which easily causes heat accumulation. For example, in the hot summer, the external ambient temperature is high. Under the dual influence of equipment heat generation and environmental high temperature, the internal temperature of the box-type substation often rises sharply, which not only seriously affects the normal service life of the equipment, but may also cause sudden failures, resulting in power outages, bringing great inconvenience and economic losses to production and life. Summary of the Invention

[0004] To overcome the above-mentioned defects, the embodiments of the present disclosure provide a detachable pre-installed box-type substation to solve the problem raised in the background art that the detachable box-type substation in the prior art has poor heat dissipation efficiency during daily use.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a detachable pre-installed box-type substation, comprising a hollow chassis, a bottom air intake box, an air intake baffle, and an air intake adjustment mechanism; The hollow bottom frame is sealed and detachably connected to the hollow middle frame, and the hollow middle frame is sealed and detachably provided with a hollow top frame on the hollow middle frame, and an equipment installation cavity is formed between the hollow bottom frame, the hollow middle frame and the hollow top frame; The bottom air intake box is sealed and arranged at the bottom of the hollow chassis. An air intake cooling component is installed on the bottom air intake box. The air intake cooling component is in communication with the hollow chassis and the equipment installation cavity. The air intake baffle is sealed and arranged on the hollow top frame; The air intake regulating mechanism is sealed and connected to the hollow top frame. The air intake regulating mechanism is connected to the equipment installation cavity and can regulate the amount of gas in the bottom air intake box entering the hollow bottom frame and the equipment installation cavity.

[0006] On the basis of the above-mentioned scheme, several protective plates are sealed around the hollow base frame, the hollow middle frame and the hollow top frame, and a box door is sealed and hinged on one side of the hollow middle frame. The cooperation between several protective plates and the box door can seal the equipment installation cavity.

[0007] As a preferred technical solution of the present disclosure, the air intake cooling assembly includes a side air intake pipe, a middle air intake pipe, a dustproof net and a heat conducting rod; The side air intake pipes are provided in a plurality and are connected between the hollow chassis and the bottom air intake box; The middle air inlet pipes are provided in plurality and are connected between the equipment installation cavity and the bottom air inlet box; An air intake hole is provided at the bottom of the bottom air intake box, and the dustproof net is arranged in the air intake hole; There are a plurality of heat-conducting rods, which penetrate and are sealed on the bottom air inlet box.

[0008] As a preferred technical solution of the present disclosure, the air intake regulating mechanism includes an air regulating box, an air extraction box, an air extraction pump and an air regulating part; The air conditioning box is sealed and detachably connected to the hollow top frame, and an air conditioning groove is provided in the middle of the air conditioning box; The air extraction box is arranged on the air conditioning box, and an air extraction plate is sealed in the air extraction box, and a sealed air conditioning cavity is formed between the air extraction plate, the air inlet partition and the air conditioning groove; There are multiple air pumps, each of which is mounted on the air pumping plate, and the air inlet end of the air pump is connected to the sealed air regulating cavity; The air regulating portion is arranged in the sealed air regulating cavity.

[0009] Further on the basis of the above solution, the air regulating part includes an air regulating motor and an air regulating plate; The air regulating motor is mounted on the air pumping plate, and the output end of the air regulating motor passes through the sealed air regulating cavity; The air regulating plate is arranged on the output end of the air regulating motor, the air regulating plate is in sealing contact with the sealed air regulating cavity, a plurality of middle air supply holes 1 are opened on the air regulating plate at equal angles, and a middle air supply hole 2 adapted to the middle air supply hole 1 is opened on the air inlet partition.

[0010] Further on the basis of the above scheme, a number of side gas supply holes compatible with the gas regulating box are opened at equal angles in the gas regulating groove, and a number of side gas supply grooves compatible with the side gas supply holes are opened around the gas regulating plate. When the middle gas supply hole 1 coincides with the middle gas supply hole 2, the side gas supply holes and the side gas supply grooves are staggered.

[0011] Based on the above solution, the air extraction box is connected to a plurality of exhaust elbows.

[0012] On the basis of the above-mentioned scheme, the hollow base frame, the hollow middle frame, the hollow top frame and the air conditioning box are detachably connected by a number of pre-installed bolts, and a number of equipment positioning plates are slidably arranged in the hollow base frame, the hollow middle frame and the hollow top frame, and the two sides of the equipment positioning plates can be fixed in the hollow base frame, the hollow middle frame or the hollow top frame by positioning bolts.

[0013] The beneficial effects of the embodiments of the present disclosure are: 1. In the present disclosure, a sealed equipment installation cavity is formed by a sealed and detachable connection between the hollow base frame, the hollow middle frame and the hollow top frame, in conjunction with a protective plate and a sealed hinged box door, so that the overall structure of the substation is detachable. During transportation, installation and maintenance, it can not only achieve rapid disassembly and assembly, significantly reducing transportation difficulty and installation costs, but also facilitate the later inspection and replacement of internal equipment by providing a box door, greatly improving the flexibility and convenience of equipment use.

[0014] 2. In the present disclosure, by setting an air intake cooling component and an air suction regulating mechanism, when cooling the electrical equipment in the equipment installation cavity, by starting the air extraction pump and the air regulating motor, the output end of the air regulating motor drives the air regulating plate to rotate. When the side air supply holes coincide with the air supply grooves, the middle air supply holes 1 and the middle air supply holes 2 are staggered, so that the gas entering the bottom air intake box through the air intake holes can flow along the side air intake pipes, the hollow bottom frame, the hollow middle frame, the hollow top frame and the air regulating box, and then enter the sealed air regulating cavity from the side air supply holes, so that the gas flows along the inside of the hollow bottom frame, the hollow middle frame and the hollow top frame, thereby cooling the surface of the substation. , which can effectively prevent excessive heat from the outside from entering the equipment installation cavity. By starting the air regulating motor, when the middle air hole 1 and the middle air hole 2 overlap, the side air holes and the air troughs are staggered, and the gas in the bottom air inlet box can enter the equipment installation cavity along the middle air inlet pipe, and then be discharged from the middle air hole 2 and the middle air hole 1. The electrical equipment is cooled by the flowing gas. In actual use, the air regulating plate can be rotated to make the side air holes and the air troughs and the middle air hole 1 and the middle air hole 2 semi-overlap, so that the gas can flow in the dual channels and better dissipate heat for the electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly describes the drawings required for use in describing the embodiments of the present disclosure. Obviously, the drawings described below are merely some exemplary embodiments of the present disclosure. Those skilled in the art can, without inventive effort, derive other drawings based on the content of the exemplary embodiments of the present disclosure and these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of a detachable pre-installed box-type substation in one embodiment of the present disclosure; Figure 2 This is a schematic structural diagram of a partial cross-section of a detachable pre-installed box-type substation in one embodiment of the present disclosure; Figure 3 For this disclosure Figure 2 Schematic diagram of the local enlarged structure at A in the middle; Figure 4 For this disclosure Figure 2 Schematic diagram of the local enlarged structure at B in the middle; Figure 5 For this disclosure Figure 2 Schematic diagram of the local enlarged structure at C in the middle; Figure 6 It is a partial cross-sectional structural diagram of the bottom air intake box and the air intake cooling assembly in the embodiment of the present disclosure; Figure 7 This is a schematic diagram of the structure of the hollow frame, protective plate, box door, pre-installed bolts, equipment positioning plate and positioning bolts in the embodiment of the present disclosure; Figure 8 It is a partial cross-sectional structural diagram of the coordination of the air intake baffle, air regulating box, air pump, air regulating motor, air regulating plate, middle air delivery hole 1, middle air delivery hole 2, side air delivery holes, and air delivery groove in the embodiment of the present disclosure; Figure 9 This is a schematic diagram of the exploded structure of the air intake baffle, air regulating box, air pump, air regulating motor, air regulating plate, middle air supply hole 1, middle air supply hole 2, side air supply holes, and air supply groove in the embodiment of the present disclosure.

[0017] In the figure: 001, air conditioning unit; 002, intake air cooling component; 003, intake air regulating mechanism; 1. Hollow base frame; 2. Hollow middle frame; 3. Hollow top frame; 4. Bottom air inlet box; 5. Air inlet baffle; 6. Protective plate; 7. Box door; 8. Side air inlet pipe; 9. Middle air inlet pipe; 10. Dust screen; 11. Heat conduction rod; 12. Air regulating box; 13. Air extraction box; 14. Air extraction pump; 15. Air regulating motor; 16. Air regulating plate; 17. Middle air supply hole 1; 18. Middle air supply hole 2; 19. Side air supply hole; 20. Air supply trough; 21. Exhaust elbow; 22. Pre-installed bolts; 23. Equipment positioning plate; 24. Positioning bolts; 25. Equipment installation cavity; 26. Air inlet hole; 27. Air extraction plate; 28. Air regulating trough; 29. ​​Sealed air regulating cavity. DETAILED DESCRIPTION

[0018] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0019] To simplify the drawings, only the parts relevant to the disclosure are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0020] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0021] In the present disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present disclosure.

[0023] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] like Figures 1 to 9 As shown, it shows a detachable pre-installed box-type substation in one embodiment of the present disclosure, including a hollow base frame 1, a bottom air intake box 4, an air intake baffle 5 and an air intake adjustment mechanism 003.

[0025] As mentioned above, the hollow base frame 1 is sealed and detachably connected to the hollow middle frame 2, and the hollow top frame 3 is sealed and detachably provided on the hollow frame 2. An equipment installation cavity 25 is formed between the hollow base frame 1, the hollow middle frame 2 and the hollow top frame 3. The hollow base frame 1, the hollow middle frame 2, the hollow top frame 3 and the air conditioning box 12 are detachably connected by a number of pre-installed bolts 22.

[0026] Specifically, after the hollow base frame 1, the hollow middle frame 2 and the hollow top frame 3 are connected, the gas can flow inside the three. During actual installation, not only can the assembly and transportation of the box-type substation be facilitated by disassembly, but also one or more hollow frames 2 can be selected and connected in sequence according to the number of electrical equipment, thereby further increasing the adaptability of the box-type substation.

[0027] As mentioned above, the bottom air intake box 4 is sealed and arranged at the bottom of the hollow chassis 1, and an air intake cooling component 002 is installed on the bottom air intake box 4. The air intake cooling component 002 is connected to the hollow chassis 1 and the equipment installation cavity 25. The air intake cooling component 002 includes a side air intake pipe 8, a middle air intake pipe 9, a dustproof net 10 and a heat-conducting rod 11. There are several side air intake pipes 8, which are connected and arranged between the hollow chassis 1 and the bottom air intake box 4. There are several middle air intake pipes 9, which are connected and arranged between the equipment installation cavity 25 and the bottom air intake box 4. An air intake hole 26 is opened at the bottom of the bottom air intake box 4, and the dustproof net 10 is arranged in the air intake hole 26. There are multiple heat-conducting rods 11, which pass through and are sealed on the bottom air intake box 4.

[0028] Specifically, the air intake hole 26 is opened at the bottom of the bottom air intake box 4, which can not only prevent the exposure to sunlight and allow the gas with lower external temperature to enter the bottom air intake box 4, but also after the gas enters the bottom air intake box 4, the gas will preferentially contact the heat conducting rod 11. When installing the box-type substation, part of the heat conducting rod 11 is inserted below the ground, which can not only increase the stability of the box-type substation, but also the heat conducting rod 11 can cool the gas by heat exchange, and transfer the excess temperature to below the ground, and the dustproof net 10 is installed in the air intake hole 26 to prevent external dust and other impurities from entering the bottom air intake box 4.

[0029] As mentioned above, the air intake baffle 5 is sealed and arranged on the hollow top frame 3, the air intake regulating mechanism 003 is sealed and connected to the hollow top frame 3, the air intake regulating mechanism 003 is connected to the equipment installation cavity 25, and can regulate the size of the gas in the bottom air intake box 4 entering the hollow bottom frame 1 and the equipment installation cavity 25. The air intake regulating mechanism 003 includes an air regulating box 12, an air extraction box 13, an air extraction pump 14 and an air regulating part 001. The air regulating box 12 is sealed and detachable and connected to the hollow bottom frame 1. On the empty top frame 3, an air regulating groove 28 is opened in the middle part of the air regulating box 12, and the air exhaust box 13 is arranged on the air regulating box 12. A vacuum plate 27 is sealed in the air exhaust box 13, and a sealed air regulating cavity 29 is formed between the vacuum plate 27, the air intake partition 5 and the air regulating groove 28. There are multiple vacuum pumps 14, and the vacuum pumps 14 are installed on the vacuum plate 27. The air inlet end of the vacuum pump 14 is connected to the sealed air regulating cavity 29, and the air regulating part 001 is arranged in the sealed air regulating cavity 29.

[0030] Among them, the air regulating part 001 includes an air regulating motor 15 and an air regulating plate 16. The air regulating motor 15 is installed on the air extraction plate 27. The output end of the air regulating motor 15 passes through the sealed air regulating cavity 29. The air regulating plate 16 is arranged on the output end of the air regulating motor 15. The air regulating plate 16 is in sealed contact with the sealed air regulating cavity 29. Several middle air supply holes 17 are opened at equal angles on the air regulating plate 16, and a middle air supply hole 2 18 adapted to the middle air supply hole 17 is opened on the air inlet partition 5.

[0031] Among them, a number of side gas holes 19 adapted to the gas regulating box 12 are opened at equal angles in the gas regulating groove 28, and a number of side gas grooves 20 adapted to the side gas holes 19 are opened around the gas regulating plate 16. When the middle gas hole 17 and the middle gas hole 2 18 coincide with each other, the side gas holes 19 and the side gas grooves 20 are staggered.

[0032] Specifically, when cooling the electrical equipment in the equipment installation cavity 25, by starting the air pump 14 and the air regulating motor 15, the output end of the air regulating motor 15 drives the air regulating plate 16 to rotate. When the side air delivery hole 19 coincides with the air delivery groove 20, the middle air delivery hole 17 and the middle air delivery hole 2 18 are staggered, so that the gas entering the bottom air inlet box 4 through the air inlet hole 26 can flow along the side air inlet pipe 8, the hollow base frame 1, the hollow middle frame 2, the hollow top frame 3 and the air regulating box 12, and enter the sealed air regulating cavity 29 from the side air delivery hole 19, so that the gas flows along the inside of the hollow base frame 1, the hollow middle frame 2 and the hollow top frame 3, thereby cooling the surface of the substation, which can effectively prevent the outside from Excessive heat enters the equipment installation cavity 25. By starting the air regulating motor 15, when the middle air hole 17 and the middle air hole 2 18 overlap, the side air holes 19 and the air troughs 20 are staggered, and the gas in the bottom air inlet box 4 can enter the equipment installation cavity 25 along the middle air inlet pipe 9, and then be discharged from the middle air hole 2 18 and the middle air hole 1 17. The electrical equipment is cooled by the flowing gas. In actual use, the air regulating plate 16 can be rotated to make the side air holes 19 and the air troughs 20 and the middle air hole 1 17 and the middle air hole 2 18 semi-overlap, so that the gas can flow in the dual channels to better dissipate heat from the electrical components.

[0033] It should be noted that several protective plates 6 are sealed around the hollow base frame 1, the hollow middle frame 2 and the hollow top frame 3, and a box door 7 is sealed and hinged on one side of the hollow frame 2. The cooperation between the several protective plates 6 and the box door 7 can seal the equipment installation cavity 25.

[0034] Specifically, by setting up the protective plate 6, not only can sealing be performed to prevent the entry of external dust, rainwater, etc., but by sealing the hinged box door 7 on one side of the hollow frame 2, daily maintenance of electrical equipment in the equipment installation cavity 25 is also facilitated.

[0035] It is further explained that several equipment positioning plates 23 are slidingly arranged in the hollow base frame 1, the hollow middle frame 2 and the hollow top frame 3. The two sides of the equipment positioning plates 23 can be fixed in the hollow base frame 1, the hollow middle frame 2 or the hollow top frame 3 by positioning bolts 24. By setting the equipment positioning plates 23, electrical equipment can be placed on the equipment positioning plates 23 to ensure the stability of the electrical equipment.

[0036] By connecting a plurality of exhaust elbows 21 to the air extraction box 13 , the gas in the air extraction box 13 can be discharged, and the discharged gas can also carry and discharge the hot gas generated by the air extraction pump 14 and the air regulating motor 15 .

[0037] The specific workflow is as follows: Component installation: Place the hollow base frame 1 horizontally at the installation position, and use pre-installed bolts 22 to seal and detachably connect the hollow middle frame 2 to the top of the hollow base frame 1, ensuring that the connection parts are well sealed. Then, according to the number of electrical equipment required, one or more hollow frames 2 can be selected for connection in sequence. Each connected hollow frame 2 must be fixed with pre-installed bolts 22. Finally, the hollow top frame 3 is sealed and detachably set on the top of the hollow frame 2, and also fixed with pre-installed bolts 22. At this time, an equipment installation cavity 25 is formed between the hollow base frame 1, the hollow frame 2 and the hollow top frame 3, and gas can flow inside the three. Then, a protective plate 6 is sealed and installed around the hollow base frame 1, the hollow frame 2 and the hollow top frame 3 to complete the preliminary sealing of the equipment installation cavity 25. A hinged box door 7 is sealed on one side of the hollow frame 2 to facilitate subsequent maintenance of the electrical equipment in the equipment installation cavity 25.

[0038] During the installation of the air intake system, the bottom air intake box 4 is sealed and set at the bottom of the hollow chassis 1 to ensure a tight connection to prevent gas leakage. Several side air intake pipes 8 are then installed between the hollow chassis 1 and the bottom air intake box 4, and several middle air intake pipes 9 are installed between the equipment installation cavity 25 and the bottom air intake box 4 to ensure that the air intake pipes are firmly connected and sealed. A dustproof net 10 is installed in the air intake through-hole 26 opened at the bottom of the bottom air intake box 4 to prevent external dust and other impurities from entering the bottom air intake box 4. Finally, multiple heat-conducting rods 11 are passed through and sealed on the bottom air intake box 4. When installing the box-type substation, part of the heat-conducting rods 11 are inserted below the ground to enhance the stability of the box-type substation. At the same time, the heat-conducting rods 11 are used for heat exchange to cool the gas entering the bottom air intake box 4.

[0039] Installation of the air intake regulating mechanism 003: The air regulating box 12 is sealed and detachably connected to the hollow top frame 3, and the air extraction box 13 is installed on the air regulating box 12. The air extraction plate 27 is sealed in the air extraction box 13 to form a sealed air adjustment cavity 29 between the air extraction plate 27, the air intake partition 5 and the air adjustment groove 28. A plurality of air extraction pumps 14 are installed on the air extraction plate 27, and the air intake end of the air extraction pump 14 is connected to the sealed air adjustment cavity 29. Then, the air adjustment motor 15 is installed on the air extraction plate 27, and the output end of the air adjustment motor 15 is passed through To the sealed air regulating chamber 29, install the air regulating plate 16 at the output end of the air regulating motor 15 to ensure that the air regulating plate 16 is in sealed contact with the sealed air regulating chamber 29, by opening a number of middle air supply holes 17 at equal angles on the air regulating plate 16, opening a middle air supply hole 2 18 that matches the middle air supply hole 17 on the air inlet partition 5, and opening a number of side air supply holes 19 that match the air regulating box 12 at equal angles in the air regulating groove 28, and opening a number of side air supply grooves 20 that match the side air supply holes 19 around the air regulating plate 16.

[0040] Equipment installation: several equipment positioning plates 23 are slidably set in the hollow base frame 1, the hollow middle frame 2 and the hollow top frame 3, the electrical equipment is placed on the equipment positioning plates 23, and the two sides of the equipment positioning plates 23 are fixed in the hollow base frame 1, the hollow middle frame 2 or the hollow top frame 3 by positioning bolts 24 to ensure that the electrical equipment is installed stably.

[0041] When the equipment is running and the electrical equipment in the equipment installation cavity 25 is cooled, the air pump 14 and the air regulating motor 15 are started, and the air regulating plate 16 is driven to rotate by the output end of the air regulating motor 15. When the side air delivery hole 19 coincides with the air delivery groove 20, the middle air delivery hole 17 and the middle air delivery hole 2 18 are staggered, so that the gas entering the bottom air inlet box 4 through the air inlet hole 26 can flow along the side air inlet pipe 8, the hollow base frame 1, the hollow middle frame 2, the hollow top frame 3 and the air regulating box 12, and enter the sealed air regulating cavity 29 from the side air delivery hole 19, so that the gas flows along the inside of the hollow base frame 1, the hollow middle frame 2 and the hollow top frame 3, thereby cooling the surface of the substation and effectively preventing the outside from Excessive heat enters the equipment installation cavity 25. By starting the air regulating motor 15, when the middle air hole 17 and the middle air hole 2 18 overlap, the side air holes 19 and the air troughs 20 are staggered, and the gas in the bottom air inlet box 4 can enter the equipment installation cavity 25 along the middle air inlet pipe 9, and then be discharged from the middle air hole 2 18 and the middle air hole 1 17. The electrical equipment is cooled by the flowing gas. In actual use, the air regulating plate 16 can be rotated to make the side air holes 19 and the air troughs 20 and the middle air hole 1 17 and the middle air hole 2 18 semi-overlap, so that the gas can flow in the dual channels to better dissipate heat from the electrical components.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not limiting. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, and all of these should be included in the scope of the claims of the present disclosure.

Claims

1. A detachable pre-installed box-type substation, characterized in that: include: A hollow base frame (1), the hollow base frame (1) is sealed and detachably connected to a hollow frame (2), the hollow frame (2) is sealed and detachably provided with a hollow top frame (3), and an equipment installation cavity (25) is formed between the hollow base frame (1), the hollow frame (2) and the hollow top frame (3); A bottom air intake box (4) is sealed and arranged at the bottom of the hollow base frame (1); an air intake cooling component (002) is installed on the bottom air intake box (4); the air intake cooling component (002) is connected to the hollow base frame (1) and the equipment installation cavity (25); An air intake baffle (5) is sealingly arranged on the hollow top frame (3); An air intake regulating mechanism (003) is sealed and connectedly arranged on the hollow top frame (3). The air intake regulating mechanism (003) is connected to the equipment installation cavity (25) and can regulate the amount of gas in the bottom air intake box (4) entering the hollow bottom frame (1) and the equipment installation cavity (25).

2. A detachable pre-installed box-type substation according to claim 1, characterized in that: The hollow base frame (1), the hollow middle frame (2) and the hollow top frame (3) are all sealed with a plurality of protective plates (6), and one side of the hollow middle frame (2) is sealed and hinged with a box door (7). The cooperation between the plurality of protective plates (6) and the box door (7) can perform a sealing operation on the equipment installation cavity (25).

3. A detachable pre-installed box-type substation according to claim 2, characterized in that: The intake air cooling component (002) comprises: A plurality of side air intake pipes (8) are provided and are connected between the hollow chassis (1) and the bottom air intake box (4); A plurality of middle air inlet pipes (9) are provided and are connected between the equipment installation cavity (25) and the bottom air inlet box (4); A dustproof net (10), wherein an air intake hole (26) is provided at the bottom of the bottom air intake box (4), and the dustproof net (10) is arranged in the air intake hole (26); A plurality of heat-conducting rods (11) are provided, and the heat-conducting rods (11) penetrate and are sealed on the bottom air inlet box (4).

4. A detachable prefabricated box-type substation according to claim 3, characterized in that: The air intake regulating mechanism (003) comprises: An air conditioning box (12) is sealed and detachably connected to the hollow top frame (3), and an air conditioning groove (28) is provided in the middle portion of the air conditioning box (12); An air extraction box (13) is provided on the air conditioning box (12), wherein an air extraction plate (27) is sealedly provided in the air extraction box (13), and a sealed air conditioning cavity (29) is formed between the air extraction plate (27), the air inlet partition (5) and the air conditioning groove (28); A plurality of air pumps (14) are provided, wherein the air pumps (14) are mounted on the air pumping plate (27), and the air inlet end of the air pump (14) is connected to the sealed air regulating cavity (29); The air regulating portion (001) is arranged in the sealed air regulating cavity (29).

5. A detachable pre-installed box-type substation according to claim 4, characterized in that: The gas regulating unit (001) comprises: An air regulating motor (15) is mounted on the air extraction plate (27), and an output end of the air regulating motor (15) extends through the sealed air regulating cavity (29); The air regulating plate (16) is arranged on the output end of the air regulating motor (15), and the air regulating plate (16) is in sealing contact with the sealed air regulating cavity (29). The air regulating plate (16) is provided with a plurality of middle air supply holes (17) at equal angles, and the air inlet partition (5) is provided with middle air supply holes (18) that are compatible with the middle air supply holes (17).

6. A detachable prefabricated substation according to claim 5, characterized in that: A plurality of side gas delivery holes (19) adapted to the gas regulating box (12) are provided at equal angles in the gas regulating groove (28), and a plurality of side gas delivery grooves (20) adapted to the side gas delivery holes (19) are provided around the gas regulating plate (16). When the middle gas delivery hole 1 (17) and the middle gas delivery hole 2 (18) coincide with each other, the side gas delivery holes (19) and the side gas delivery grooves (20) are arranged in an alternating manner.

7. The detachable prefabricated substation according to claim 6, characterized in that: The air extraction box (13) is connected to a plurality of exhaust elbows (21).

8. The detachable prefabricated substation according to claim 7, characterized in that: The hollow base frame (1), the hollow middle frame (2), the hollow top frame (3) and the air conditioning box (12) are detachably connected via a plurality of pre-installed bolts (22); a plurality of equipment positioning plates (23) are slidably provided in the hollow base frame (1), the hollow middle frame (2) and the hollow top frame (3); both sides of the equipment positioning plates (23) can be fixed in the hollow base frame (1), the hollow middle frame (2) or the hollow top frame (3) via positioning bolts (24).

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