A modular box-type substation enclosure and its assembly method

Abstract

The present invention provides a modular box-type substation housing and an assembly method thereof, comprising: a base, a housing, a high-voltage unit and a top cover; the housing includes a high-voltage side wall, a low-voltage side wall, a sealing plate side wall and a transformer side wall, and encloses a receiving structure with openings at the top and bottom; the housing is buckled on the base, and the lower edge of the housing is detachably connected to the base; the high-voltage unit is arranged in the receiving structure, and the lower edge of the high-voltage unit is detachably connected to the base; the top cover is arranged above the housing. In the modular box-type substation housing provided by the present invention, the specific components are all sheet-like structures, thus achieving the effect of being convenient for transportation. At the same time, the above components do not have numerous and small parts that need to be assembled, the assembly process is simple, the assembly time is short, and the technical proficiency requirements for assembly workers are not high, solving the problems existing in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of box-type substations, and particularly relates to a modular box-type substation shell and an assembly method thereof. Background Art

[0002] A box-type substation, also called a prefabricated substation, is widely used in fields such as new energy power generation and national grid power distribution. During actual use, after high-voltage switches, transformers, and low-voltage switches are installed and debugged in the box-type substation shell, they are transported to the site for direct use, which is particularly suitable for the new energy power generation field.

[0003] The shell of a new energy box-type substation is relatively large in volume and mostly uses a welded structure. After being polished and spray-coated, it is transported to the box-type substation manufacturer for installing components, resulting in high transportation costs. The assembled box-type substation can be transported in loose parts, with low transportation costs, but it needs to be assembled at the box-type substation manufacturer, with many assembly processes, long time consumption, and high requirements for the technical proficiency of assembly workers. Summary of the Invention

[0004] In view of this, the present invention provides a modular box-type substation shell and an assembly method thereof, aiming to reduce the transportation cost of the box-type substation shell and at the same time solve the problems of many assembly processes, long time consumption, and high requirements for the skill proficiency of assembly workers in the existing assembled box-type substation.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] In the first aspect, the present invention provides a modular box-type substation shell, including:

[0007] A base, a shell, a high-voltage unit, and a top cover;

[0008] Wherein, the shell includes a high-voltage side wall, a low-voltage side wall, a sealing plate side wall, and a transformer side wall. The high-voltage side wall, the low-voltage side wall, the sealing plate side wall, and the transformer side wall enclose a receiving structure with openings at the top and bottom; the shell is buckled on the base, and the lower edge of the shell is detachably connected to the base; the high-voltage unit is arranged in the receiving structure, and the lower edge of the high-voltage unit is detachably connected to the base; the top cover is arranged above the shell and is detachably connected to the upper edge of the shell.

[0009] Further, the high-voltage unit includes: a high-voltage frame, a high-voltage door panel, and a high-low voltage partition; the high-voltage door panel and the high-low voltage partition are arranged at intervals, the high-voltage frame is arranged between the high-voltage door panel and the high-low voltage partition, and the high-voltage door panel, the high-low voltage partition and the high-voltage frame are detachably connected; the bottom of the high-voltage frame is detachably connected to the base; the lower edge of the high-voltage door panel is detachably connected to the base, and the high-voltage door panel is perpendicular to the base; the lower edge of the high-low voltage partition is detachably connected to the base, and the high-low voltage partition is perpendicular to the base.

[0010] Further, the high-voltage unit is detachably connected to the outer shell.

[0011] Further, the high-voltage frame includes a support plate and a support frame; the support frame is located above the support plate and is detachably connected to the support plate, the lower edge of the support plate is detachably connected to the base, and the support plate is perpendicular to the base; the high-voltage door panel is detachably connected to the support frame and / or the support plate; the high-low voltage partition is detachably connected to the support frame and / or the support plate.

[0012] Further, the high-voltage door panel includes a frame structure, and two protruding mounting structures are arranged in the frame structure. The mounting structures are respectively detachably connected to the sealing plate side wall and the transformer side wall, and the high-voltage door panel is arranged in parallel and at intervals with the high-voltage side wall; the high-voltage door panel further includes at least one of an instrument box, an instrument door, a cable chamber door, a high-voltage chamber door, and a sealing plate; at least one of the instrument box, the instrument door, the cable chamber door, the high-voltage chamber door, and the sealing plate is connected to the frame structure.

[0013] Further, the high-low voltage partition is arranged in parallel and at intervals with the low-voltage side wall.

[0014] Further, two corner columns are arranged on the left and right sides of the high-voltage side wall, and two corner columns are arranged on the left and right sides of the low-voltage side wall. The high-voltage side wall, the low-voltage side wall, the sealing plate side wall, and the transformer side wall are connected through the corner columns.

[0015] Further, the high-voltage side wall includes a high-voltage outer door, and first container hinges are arranged on the two corner columns arranged on the left and right sides of the high-voltage side wall. The first container hinges are connected to the high-voltage outer door; at least one of a sign board and a container lock rod is arranged on the high-voltage outer door; and / or

[0016] The low-voltage side wall includes a low-voltage outer door, and second container hinges are arranged on the two corner columns arranged on the left and right sides of the low-voltage side wall. The second container hinges are connected to the low-voltage outer door; and / or

[0017] The sealing plate side wall includes a mounting plate, and the mounting plate is connected to the high-voltage unit; and / or

[0018] The transformer side wall includes a sealing plate, the sealing plate is located in the upper region of the transformer side wall, and the lower region of the transformer side wall is hollowed out.

[0019] Furthermore, the base is formed by connecting a plurality of channel steels and a plurality of angle steels vertically and horizontally; and / or

[0020] A plurality of openings are provided on the upper surface of the base, the housing is screwed to the base through the openings, and the high-voltage unit is screwed to the base through the openings; and / or

[0021] A grounding seat is provided on the base; and / or

[0022] A floor plate is provided on the base.

[0023] Furthermore, the top cover is a double-layer top cover, including an upper steel plate and a lower steel plate; and / or

[0024] Heat-insulating cotton is provided in the top cover; and / or

[0025] A plurality of lifting lugs are provided on the upper surface of the top cover; and / or

[0026] A fan bracket is provided on the lower surface of the top cover for installing a fan.

[0027] In a second aspect, the present invention provides an assembly method for the modular box-type substation housing as described above, and the assembly method is as follows:

[0028] Screw-fix the high-voltage side wall, low-voltage side wall, sealing plate side wall and transformer side wall to the base, and then screw-connect the high-voltage side wall, low-voltage side wall, sealing plate side wall and transformer side wall in sequence; place the high-voltage unit in the accommodating structure, and fixedly connect the high-voltage unit to the base in a screwed manner; place the top cover above the housing and fixedly connect it to the housing in a screwed manner; the high-voltage side wall, low-voltage side wall, sealing plate side wall, transformer side wall and the high-voltage unit are perpendicular to the base; or

[0029] Screw-connect the high-voltage side wall, low-voltage side wall, sealing plate side wall and transformer side wall in sequence, and then screw-fix the high-voltage side wall, low-voltage side wall, sealing plate side wall and transformer side wall to the base; place the high-voltage unit in the accommodating structure, and fixedly connect the high-voltage unit to the base in a screwed manner; place the top cover above the housing and fixedly connect it to the housing in a screwed manner; the high-voltage side wall, low-voltage side wall, sealing plate side wall, transformer side wall and the high-voltage unit are perpendicular to the base.

[0030] Furthermore, the high-voltage unit is fixedly connected to the sealing plate side wall and the transformer side wall respectively by screwing.

[0031] The beneficial effects of the above technical solution of the present invention are as follows:

[0032] The present invention provides a modular box-type substation housing, including: a base, a housing, a high-voltage unit and a top cover; wherein, the housing includes a high-voltage side wall, a low-voltage side wall, a sealing plate side wall and a transformer side wall, and the high-voltage side wall, the low-voltage side wall, the sealing plate side wall and the transformer side wall enclose a receiving structure with openings at the top and bottom; the housing is buckled on the base, and the lower edge of the housing is detachably connected to the base; the high-voltage unit is arranged in the receiving structure, and the lower edge of the high-voltage unit is detachably connected to the base; the top cover is arranged above the housing and is detachably connected to the upper edge of the housing. In the modular box-type substation housing provided by the present invention, the specific components are all sheet-like structures, thus achieving the effect of being convenient for transportation. At the same time, the above components do not have a large number of small parts that need to be assembled, the assembly process is simple, the assembly time is short, and the technical proficiency requirements for assembly workers are not high, solving the problems existing in the prior art. Description of the Drawings

[0033] Figure 1 is a structural schematic diagram of a modular box-type substation housing;

[0034] Figure 2 is a structural schematic diagram of the base;

[0035] Figure 3 is a structural schematic diagram of the assembled housing;

[0036] Figure 4 is a structural schematic diagram of the assembled high-voltage unit;

[0037] Figure 5 is a structural schematic diagram of the top cover.

[0038] Reference Signs:

[0039] Base 100, channel steel (101, 316), angle steel 102, threaded hole 103, earthing seat 104, decking 105;

[0040] Housing 200, low-voltage side wall 210, high-voltage side wall 220, transformer side wall 230, sealing plate side wall 240;

[0041] Windproof hinge 211, lighting fixture bracket 212, travel switch bracket 213, smoke sensor bracket 214, low-voltage outer door 215;

[0042] High-voltage outer door 221, corner upright 222, cross beams (223, 242), sign 224, container locking rod 225, first container hinge 226, container lock 227;

[0043] Sealing plates (231, 241, 317);

[0044] Mounting plate 243;

[0045] High-voltage unit 300, high-voltage door panel 310, high-voltage frame 320, high-low voltage partition 330;

[0046] Skeleton structure 311, instrument box 312, instrument door 313, high-voltage indoor door 314, cable chamber door 315;

[0047] Top cover 400, upper steel plate 401, lower steel plate 402, thermal insulation cotton 403, lifting lug 404. Detailed implementation mode

[0048] To further understand the present invention, the preferred implementation modes of the present invention will be described below in conjunction with embodiments. However, it should be understood that these descriptions are only for further explaining the features and advantages of the present invention, rather than limiting the present invention.

[0049] The following combines the attached Figures 1 to 5 The modular box-type substation housing 200 and its assembly method provided in the present invention are further explained.

[0050] In a first aspect, the present invention provides a modular box-type substation housing, including:

[0051] Base 100, housing 200, high-voltage unit 300 and top cover 400; wherein, the housing 200 includes a high-voltage side wall 220, a low-voltage side wall 210, a sealing plate side wall 240 and a transformer side wall 230, and the high-voltage side wall 220, the low-voltage side wall 210, the sealing plate side wall 240 and the transformer side wall 230 enclose a receiving structure with openings at the top and bottom; the housing 200 is buckled on the base 100, and the lower edge of the housing 200 is detachably connected to the base 100; the high-voltage unit 300 is arranged in the receiving structure, and the lower edge of the high-voltage unit 300 is detachably connected to the base 100; the top cover 400 is arranged above the housing 200 and is detachably connected to the upper edge of the housing 200.

[0052] According to some embodiments of the present invention, the high-voltage unit 300 includes: a high-voltage frame 320, a high-voltage door panel 310, and a high-low voltage partition 330; the high-voltage door panel 310 and the high-low voltage partition 330 are arranged at intervals, the high-voltage frame 320 is arranged between the high-voltage door panel 310 and the high-low voltage partition 330, and the high-voltage door panel 310, the high-low voltage partition 330 and the high-voltage frame 320 are detachably connected; the bottom of the high-voltage frame 320 is detachably connected to the base 100; the lower edge of the high-voltage door panel 310 is detachably connected to the base 100, and the high-voltage door panel 310 is perpendicular to the base 100; the lower edge of the high-low voltage partition 330 is detachably connected to the base 100, and the high-low voltage partition 330 is perpendicular to the base 100.

[0053] See the appendix Figure 1 In the present invention, a novel modular box-type substation enclosure is provided, which includes four main components: a base 100, an enclosure 200, a high-voltage unit 300, and a top cover 400. Among them, the enclosure 200 covers the base 100 and is detachably connected to the base 100, and the top cover 400 is arranged above the enclosure 200 and is detachably connected to the upper edge of the enclosure 200, thus forming the general structure of the box-type substation enclosure. The enclosure 200 is formed by enclosing a high-voltage side wall 220, a low-voltage side wall 210, a sealing plate side wall 240, and a transformer side wall 230, and is a receiving structure with openings at the top and bottom. The high-voltage unit 300 is placed in the receiving structure and is detachably connected to the base 100, thereby forming a modular box-type substation enclosure. Further, the high-voltage unit 300 further includes a high-voltage frame 320, a high-voltage door panel 310, and a high-low voltage partition 330; the high-voltage door panel 310 and the high-low voltage partition 330 are arranged at intervals, and the high-voltage frame 320 is arranged between the high-voltage door panel 310 and the high-low voltage partition 330.

[0054] In the modular box-type substation enclosure provided in the present invention, the assembly of each high- and low-voltage component is as follows: the high-voltage unit 300 is used to assemble high-voltage components; low-voltage components are assembled between the high-low voltage partition 330 and the low-voltage side wall 210, and the high-low voltage partition 330 is used to completely separate the high- and low-voltage chambers; transformer components are assembled at the transformer side wall 230.

[0055] The modular box-type substation enclosure provided in the present invention can be specifically divided into: a base 100, a top cover 400, an enclosure 200 (a high-voltage side wall 220, a low-voltage side wall 210, a sealing plate side wall 240, and a transformer side wall 230), and a high-voltage unit 300 (a high-voltage frame 320, a high-voltage door panel 310, and a high-low voltage partition 330). These components are all sheet-like structures, thus achieving the effect of being convenient for transportation. At the same time, the above-mentioned components do not have numerous and small parts that need to be assembled. The assembly process is simple, the assembly time is short, and the technical proficiency requirements for assembly workers are not high, solving the problems existing in the prior art.

[0056] According to some embodiments of the present invention, the high-voltage unit 300 is detachably connected to the enclosure 200. In order to further fix the high-voltage unit 300, the high-voltage unit 300 can be detachably connected to the enclosure 200 on the basis of being connected to the base 100.

[0057] According to some embodiments of the present invention, the high-voltage frame 320 includes a support plate and a support frame; the support frame is located above the support plate and is detachably connected to the support plate. The lower edge of the support plate is detachably connected to the base 100, and the support plate is perpendicular to the base 100; the high-voltage door panel 310 is detachably connected to the support frame and / or the support plate; the high-low voltage partition 330 is detachably connected to the support frame and / or the support plate.

[0058] According to some embodiments of the present invention, the high-voltage door panel 310 includes a frame structure 311, and two protruding mounting structures are provided in the frame structure 311. The mounting structures are respectively detachably connected to the sealing plate side wall 240 and the transformer side wall 230, and the high-voltage door panel 310 is arranged in parallel and at intervals with the high-voltage side wall 220; the high-voltage door panel 310 further includes at least one of an instrument box 312, an instrument door 313, a cable chamber door 315, a high-voltage chamber door 314, and a sealing plate 317; at least one of the instrument box 312, the instrument door 313, the cable chamber door 315, the high-voltage chamber door 314, and the sealing plate 317 is connected to the frame structure 311.

[0059] See the attached Figure 4 , the high-voltage unit 300 includes a high-voltage frame 320. The high-voltage door panel 310 and the high-low voltage partition 330 are arranged in parallel and at intervals. The high-voltage frame 320 is arranged between the high-voltage door panel 310 and the high-low voltage partition 330. In the present invention, the high-voltage frame 320 includes a support plate and a support frame. The high-voltage door panel 310 is detachably connected to the support frame and / or the support plate; the high-low voltage partition 330 is detachably connected to the support frame and / or the support plate. The high-voltage frame 320 mainly plays a supporting role.

[0060] Specifically, as shown in the appendix Figure 4 As shown, the high-voltage frame 320 is welded by channel steel 316 and sealing plates 317. The sealing plates 317 can be steel plates. The bottom of the high-voltage frame 320 is provided with openings, and grounding studs are welded at the openings. The high-voltage door panel 310 includes a skeleton structure 311, an instrument box 312, an instrument door 313, a cable chamber door 315, a high-voltage chamber door 315 and a sealing plate 317. Among them, two protruding mounting structures are provided in the skeleton structure 311, and the mounting structures are respectively detachably connected to the sealing plate side wall 240 and the transformer side wall 230. The instrument box 312 and the sealing plate 317 are welded to the skeleton structure 311. The instrument door 313, the cable chamber door 315, and the high-voltage chamber door 314 are connected to the skeleton structure 311 by hinges. The bottom of the high-voltage door panel 310 is provided with openings for screwing to the base 100. The high-low voltage partition 330 is welded by channel steel 316 and sealing plates 317. The channel steel 316 in the high-low voltage partition 330 corresponds to the high-voltage frame 320 and is connected into a stable whole. The sealing plate 317 is used to separate the high and low voltage chambers so that the high and low voltage chambers are completely separated. The bottom of the high-low voltage partition 330 is provided with openings for screwing to the base 100.

[0061] According to some embodiments of the present invention, the high-low voltage partition 330 is arranged in parallel and spaced from the low-voltage side wall 210.

[0062] According to some embodiments of the present invention, two corner columns 222 are provided on the left and right sides of the high-voltage side wall 220, and two corner columns 222 are provided on the left and right sides of the low-voltage side wall 210. The high-voltage side wall 220, the low-voltage side wall 210, the sealing plate side wall 240 and the transformer side wall 230 are connected by the corner columns 222.

[0063] According to some embodiments of the present invention, the high-voltage side wall 220 includes a high-voltage outer door 221. On two corner columns 222 provided on the left and right sides of the high-voltage side wall 220, a first container hinge 226 is provided, and the first container hinge 226 is connected to the high-voltage outer door 221; at least one of a sign 224 and a container lock bar 225 is provided on the high-voltage outer door 221; and / or the low-voltage side wall 210 includes a low-voltage outer door 215. On two corner columns 222 provided on the left and right sides of the low-voltage side wall 210, a second container hinge is provided, and the second container hinge is connected to the low-voltage outer door 215; and / or the sealing plate side wall 240 includes a mounting plate 243, and the mounting plate 243 is connected to the high-voltage unit 300; and / or the transformer side wall 230 includes a sealing plate 231. The sealing plate 231 is located in the upper region of the transformer side wall 230, and the lower region of the transformer side wall 230 is hollowed out.

[0064] See attached Figure 3 , the high-voltage side wall 220 includes a high-voltage outer door 221 and corner columns 222 provided on the left and right sides, the low-voltage side wall 210 includes a low-voltage side wall 210 and corner columns 222 provided on the left and right sides, and the high-voltage side wall 220, the low-voltage side wall 210, the sealing plate side wall 240 and the transformer side wall 230 are connected through the corner columns 222.

[0065] Specifically, the high-voltage side wall 220 further includes a cross beam 223, a sign 224, a container lock bar 225, a container lock catch 227, and a first container hinge 226. The cross beam 223 is provided above the high-voltage outer door 221, the sign 224 is provided on the outer surface of the high-voltage outer door 221, the container lock catch 227 is welded on the cross beam 223 for fixing the container lock bar 225, and the first container hinge 226 is welded on the corner column 222. The side, top and bottom of the high-voltage side wall 220 are all provided with openings, which are respectively connected to the base 100, the top cover 400, the transformer side wall 230 and the sealing plate side wall 240. The low-voltage side wall 210 further includes a low-voltage outer door 215, a windproof hinge 211, a lighting lamp bracket 212, a travel switch bracket 213, a smoke sensor bracket 214 and a wire tying rack; the windproof hinge 211, the lighting lamp bracket 212, the travel switch bracket 213, the smoke sensor bracket 214 and the wire tying rack are provided on the low-voltage outer door 215. The transformer side wall 230 is all welded by a sealing plate 231. The sealing plate 231 is provided with openings, and the side, top and bottom of the transformer side wall 230 are provided with openings. A wire tying rack is welded on the top of the sealing plate 231. The sealing plate side wall 240 further includes a sealing plate 241, a cross beam 242 and a mounting plate 243. The mounting plate 243 is welded on the cross beam 242, and the mounting plate 243 is connected to the high-voltage unit 300.

[0066] According to some embodiments of the present invention, the base 100 is formed by longitudinally and transversely connecting a plurality of channel steels 101 and a plurality of angle steels 102; and / or a plurality of openings are provided on the upper surface of the base 100, and the housing 200 is screwed to the base 100 through the openings, and the high-voltage unit 300 is screwed to the base 100 through the openings; and / or a grounding seat 104 is provided on the base 100; and / or a floor plate 105 is provided on the base 100.

[0067] See the appendix Figure 2 , the base 100 is of a welded type and is welded by channel steels 101, angle steels 102 and a floor plate 105. Preferably, the channel steels 101 in the base 100 are 14# channel steels, the angle steels 102 in the base 100 are 5# angle steels, the floor plate 105 is a cold-rolled steel plate with a thickness of 2.0 mm, and full welding is used between the channel steels 101 and the angle steels 102, and intermittent welding is used for the floor plate 105. Preferably, M12 threaded holes 103 are opened on the upper surface of the base 100, grounding seats 104 are welded at corresponding positions of the channel steels 101 and the angle steels 102, and the floor plate 105 is welded on the upper surface of the base 100 or the lower surface of the floor plate according to actual needs.

[0068] According to some embodiments of the present invention, the top cover 400 is a double-layer top cover 400, including an upper steel plate 401 and a lower steel plate 402; and / or heat-insulating cotton 403 is provided in the top cover 400; and / or a plurality of lifting lugs 404 are provided on the upper surface of the top cover 400; and / or a fan bracket is provided on the lower surface of the top cover 400 for installing a fan.

[0069] See the appendix Figure 5 , the top cover 400 is a double-layer top cover 400, wherein the upper steel plate 401 is a steel plate with a thickness of 2.0 mm, and the upper steel plate 401 protrudes at a certain angle in the middle, the lower steel plate 402 is a steel plate with a thickness of 1.0 mm, heat-insulating cotton 403 is installed between the two steel plates, lifting lugs 404 are welded on the upper surface of the upper steel plate 401, a fan bracket and welding bolts are welded on the lower steel plate 402, ventilation holes are opened around the top cover 400, and wire meshes are installed on the ventilation openings.

[0070] According to some embodiments of the present invention, the base 100, the housing 200, the high-voltage unit 300 and the top cover 400 are all subjected to plastic spraying treatment.

[0071] In a second aspect, the present invention provides an assembly method for the modular box-type substation housing 200 as described above, and the assembly method is:

[0072] Fix the high-voltage side wall 220, low-voltage side wall 210, sealing plate side wall 240, and transformer side wall 230 to the base 100 by screwing, and then screw the high-voltage side wall 220, low-voltage side wall 210, sealing plate side wall 240, and transformer side wall 230 in sequence; place the high-voltage unit 300 in the accommodating structure, and fixedly connect the high-voltage unit 300 to the base 100 by screwing; place the top cover 400 above the housing 200, and fixedly connect the top cover 400 to the housing 200 by screwing; the high-voltage side wall 220, low-voltage side wall 210, sealing plate side wall 240, transformer side wall 230, and the high-voltage unit 300 are perpendicular to the base 100; or

[0073] Screw the high-voltage side wall 220, low-voltage side wall 210, sealing plate side wall 240, and transformer side wall 230 in sequence, and then fix the high-voltage side wall 220, low-voltage side wall 210, sealing plate side wall 240, and transformer side wall 230 to the base 100 by screwing; place the high-voltage unit 300 in the accommodating structure, and fixedly connect the high-voltage unit 300 to the base 100 by screwing; place the top cover 400 above the housing 200, and fixedly connect the top cover 400 to the housing 200 by screwing; the high-voltage side wall 220, low-voltage side wall 210, sealing plate side wall 240, transformer side wall 230, and the high-voltage unit 300 are perpendicular to the base 100.

[0074] According to some embodiments of the present invention, the high-voltage unit 300 is fixedly connected to the sealing plate side wall 240 and the transformer side wall 230 respectively by screwing.

[0075] The present invention provides an assembly method for the modular quick-assembly new energy box substation housing as described above. This method uses bolts to assemble each module. Modularity greatly shortens the assembly cycle of the box substation, improves production efficiency, and solves the problem of high technical proficiency requirements for assembly workers in fully assembled box substations.

[0076] The following further illustrates the present invention through some specific embodiments.

[0077] Embodiment 1

[0078] This embodiment provides a modular quick-assembly new energy box substation housing, which has the advantages of being modular and time-saving and labor-saving; and it is necessary to ensure the waterproof performance of the box substation housing.

[0079] To achieve the above object, this embodiment proposes an assembly method for a modular quick-assembly new energy box substation housing, which is used to assemble a modular quick-assembly new energy box substation housing, and includes the following steps:

[0080] S1: Stick an elastic rubber sealing strip on the area where the periphery of the base 100 contacts the outer shell 200, the side splicing joints of the high-voltage side wall 220 and the low-voltage side wall 210, and open holes in the sealing strip in the area of the installation holes of the base 200;

[0081] S2: Fix the high-voltage side wall 220 on the base 100 with bolts to ensure that the high-voltage side wall 220 is perpendicular to the base 100;

[0082] S3: Fix the sealing plate side wall 240 and the transformer side wall 230 on the base 100 with bolts, and connect the sides of the sealing plate side wall 240 and the transformer side wall 230 to the high-voltage side plate 220 with bolts;

[0083] S4: Fix the low-voltage side wall 210 on the base 100 with bolts, and connect the side of the low-voltage side wall 210 to the sealing plate side wall 240 and the transformer side wall 230 with bolts respectively;

[0084] S5: Connect the three parts of the high-voltage unit 300, namely the high-voltage door panel 310, the high-voltage frame 320, and the high-low voltage partition 330, together with bolts;

[0085] S6: Place the high-voltage unit 300 into the internal accommodation structure of the outer shell 200 and connect it to the outer shell 200 with bolts;

[0086] S7: Stick a sealing strip on the top of the outer shell 200 and open holes in the sealing strip in the area of the installation holes;

[0087] S8: Install the top cover 400 above the outer shell 200 and fix it to the outer shell 200 with nuts;

[0088] S9: Apply weather-resistant sealant outside all the splicing positions of the outer shell 200.

[0089] Preferably, the bolts in the above steps are 8.8-grade M12 bolts, the sealing strip is made of ethylene propylene diene monomer (EPDM) rubber sealing strip, and the weather-resistant sealant is made of medium silicone sealant.

[0090] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0091] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A modular box-type substation enclosure, characterized in that, Comprising: a base, a housing, a high-voltage unit, and a top cover; Wherein, the housing includes a high-voltage side wall, a low-voltage side wall, a sealing plate side wall, and a transformer side wall. The high-voltage side wall, the low-voltage side wall, the sealing plate side wall, and the transformer side wall enclose a receiving structure that is open at the top and bottom; The housing is buckled on the base, and the lower edge of the housing is detachably connected to the base; the high-voltage unit is disposed within the receiving structure, and the lower edge of the high-voltage unit is detachably connected to the base; the top cover is disposed above the housing and is detachably connected to the upper edge of the housing; The high-voltage unit includes: a high-voltage frame, a high-voltage door panel, and a high-low voltage partition; The high-voltage door panel and the high-low voltage partition are spaced apart. The high-voltage frame is disposed between the high-voltage door panel and the high-low voltage partition, and the high-voltage door panel, the high-low voltage partition, and the high-voltage frame are detachably connected to each other; The bottom of the high-voltage frame is detachably connected to the base; the lower edge of the high-voltage door panel is detachably connected to the base, and the high-voltage door panel is perpendicular to the base; the lower edge of the high-low voltage partition is detachably connected to the base, and the high-low voltage partition is perpendicular to the base; The high-voltage unit is detachably connected to the housing.

2. The modular box-type substation enclosure according to claim 1, wherein The high-voltage frame includes a support plate and a support frame; The support frame is located above the support plate and is detachably connected to the support plate. The lower edge of the support plate is detachably connected to the base, and the support plate is perpendicular to the base; the high-voltage door panel is detachably connected to the support frame and / or the support plate; the high-low voltage partition is detachably connected to the support frame and / or the support plate.

3. The modular box-type substation housing according to claim 1, characterized in that, The high-voltage door panel includes a frame structure, and two protruding mounting structures are provided in the frame structure. The mounting structures are respectively detachably connected to the sealing plate side wall and the transformer side wall, and the high-voltage door panel is disposed parallel and spaced apart from the high-voltage side wall; The high-voltage door panel further includes at least one of an instrument box, an instrument door, a cable chamber door, a high-voltage chamber door, and a sealing plate; at least one of the instrument box, the instrument door, the cable chamber door, the high-voltage chamber door, and the sealing plate is connected to the frame structure.

4. The modular box-type substation enclosure according to claim 1, wherein, The high-low voltage partition is disposed parallel and spaced apart from the low-voltage side wall.

5. The modular box-type substation enclosure according to claim 1, characterized in that, Two corner columns are provided on the left and right sides of the high-voltage side wall, and two corner columns are provided on the left and right sides of the low-voltage side wall. The high-voltage side wall, the low-voltage side wall, the sealing plate side wall, and the transformer side wall are connected by the corner columns.

6. The modular box-type substation enclosure according to claim 5, characterized in that, The high-voltage side wall includes a high-voltage outer door. First container hinges are provided on the two corner columns provided on the left and right sides of the high-voltage side wall, and the first container hinges are connected to the high-voltage outer door; at least one of a sign board and a container lock rod is provided on the high-voltage outer door; and / or The low-voltage side wall includes a low-voltage outer door. Second container hinges are provided on the two corner columns provided on the left and right sides of the low-voltage side wall, and the second container hinges are connected to the low-voltage outer door; and / or The sealing plate side wall includes a mounting plate, and the mounting plate is connected to the high-voltage unit; and / or The side wall of the transformer includes a sealing plate, which is located in the upper region of the side wall of the transformer, and the lower region of the side wall of the transformer is hollowed out.

7. The modular box-type substation enclosure according to claim 1, characterized in that The base is formed by connecting multiple channel steels and multiple angle steels vertically and horizontally; and / or A plurality of openings are provided on the upper surface of the base, the outer shell is screwed to the base through the openings, and the high-voltage unit is screwed to the base through the openings; and / or A grounding seat is provided on the base; and / or A floor plate is provided on the base.

8. The modular box-type substation housing according to claim 1, characterized in that, The top cover is a double-layer top cover, including an upper steel plate and a lower steel plate; and / or Heat insulation cotton is provided in the top cover; and / or A plurality of lifting lugs are provided on the upper surface of the top cover; and / or A fan bracket is provided on the lower surface of the top cover for installing a fan.

9. The assembling method of the modular box-type substation enclosure according to any one of claims 1 to 8, characterized in that, The assembly method is as follows: Screw and fix the high-voltage side wall, low-voltage side wall, sealing plate side wall and transformer side wall to the base, and then screw the high-voltage side wall, low-voltage side wall, sealing plate side wall and transformer side wall in sequence; place the high-voltage unit in the accommodating structure, and fix and connect the high-voltage unit to the base by screwing; place the top cover above the outer shell and fix and connect it to the outer shell by screwing; the high-voltage side wall, low-voltage side wall, sealing plate side wall, transformer side wall and the high-voltage unit are perpendicular to the base; or Screw the high-voltage side wall, low-voltage side wall, sealing plate side wall and transformer side wall in sequence, and then screw and fix the high-voltage side wall, low-voltage side wall, sealing plate side wall and transformer side wall to the base; place the high-voltage unit in the accommodating structure, and fix and connect the high-voltage unit to the base by screwing; place the top cover above the outer shell and fix and connect it to the outer shell by screwing; the high-voltage side wall, low-voltage side wall, sealing plate side wall, transformer side wall and the high-voltage unit are perpendicular to the base.

10. The assembly method according to claim 9, characterized in that, The high-voltage unit is fixedly connected to the sealing plate side wall and the transformer side wall by screwing.

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