Waterproof prefabricated substation

Abstract

The utility model relates to a waterproof prefabricated substation, and belongs to the technical field of prefabricated substations. The cable connector comprises a base, a shell and a top cover, the shell is provided with a waterproof assembly for cable access, the waterproof assembly comprises a waterproof shell, the cross section of the waterproof shell is a parallelogram and has an obtuse angle, the surfaces of four edges of the waterproof shell corresponding to the cross section are respectively a connecting surface, an access surface, a water diversion surface and a water guide surface, and the waterproof shell is fixed with the shell through one side of the connecting surface. The water diversion surface is connected with the connecting surface, the included angle between the water diversion surface and the connecting surface is an acute angle, the water guide surface is connected with the connecting surface, the water diversion surface is located above the water guide surface, a partition plate is integrally arranged in the waterproof shell, the partition plate divides the inner space of the waterproof shell into two parts, and the cross section of the partition plate divides the waterproof shell into two acute triangles; the access port extends to the water guide surface, and the partition plate is provided with a lead hole for a cable to pass through. According to the invention, rainwater is not easy to permeate even if the top of the cable is connected for a long time.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of prefabricated substations, in particular to a waterproof prefabricated substation. BACKGROUND

[0002] The box-type substation, also called prefabricated substation or prefabricated substation, is a kind of high-voltage switchgear, distribution transformer and low-voltage distribution device arranged in an integrated factory according to a certain wiring scheme. It is a compact indoor and outdoor distribution device that combines voltage reduction, low-voltage distribution and other functions organically in a moisture-proof, rust-proof, dust-proof, rat-proof, fire-proof, theft-proof, heat-proof, fully enclosed and movable steel structure box. It is particularly suitable for urban network construction and renovation, and is a new type of substation after the construction of the substation. The box-type substation is suitable for mines, factories, enterprises, oil and gas fields and wind power stations. It replaces the original civil distribution room and distribution station, and becomes a new type of complete substation and distribution device.

[0003] The existing box-type substation generally connects cables from the bottom, which requires digging a corresponding cable trench under the box-type substation for cable laying, and the bottom of the box-type substation needs to be poured with a concrete foundation to support the box-type substation. The existence of the concrete foundation also makes the box-type substation a certain height from the ground, which can better prevent water; in some environments, cables are also connected from the top of the box-type substation, in which case the cables are overhead or directly connected from the power transmission line to the box-type substation.

[0004] The concrete foundation of the above box-type substation improves the waterproofing capability, but if the cables are connected from the top, long-term precipitation may cause corrosion at the contact position between the cables and the shell of the substation, leading to water leakage. CONTENT OF THE INVENTION

[0005] In order to achieve better and more stable waterproofing when the cables are connected from the top of the substation, the present application provides a waterproof prefabricated substation.

[0006] The waterproof prefabricated substation provided by the present application adopts the following technical solution:

[0007] The waterproof prefabricated substation comprises a base, an outer shell and a top cover from bottom to top, the outer shell is provided with a waterproof assembly for cable access at the upper part away from the base, the waterproof assembly comprises a waterproof shell, the waterproof shell has a parallelogram cross section with obtuse and acute angles, four surfaces of the four edges of the cross section of the waterproof shell are respectively provided with a connecting surface, an access surface, a water guide surface and a water guide surface, the connecting surface is open, and the waterproof shell is fixed and sealed with the outer shell through the connecting surface side, the water guide surface is connected with the connecting surface and the included angle is acute, the water guide surface is connected with the connecting surface and the included angle is obtuse, the water guide surface is located above the water guide surface, an integral partition plate is arranged in the waterproof shell, the partition plate divides the space in the waterproof shell into two parts, and the cross section of the waterproof shell is divided into two acute triangles by the partition plate, the access surface is provided with an access port for cable passing through, and the access port is extended to the water guide surface, and the partition plate is provided with a lead hole for cable passing through.

[0008] By adopting the above technical scheme, the cable enters the substation after passing through the waterproof assembly, and the waterproof assembly plays a role in isolating rainwater, thereby improving the waterproof effect. If the waterproof effect is reduced due to rainwater invasion after long-term use, the maintenance can be more conveniently completed by replacing the waterproof assembly, and the maintenance cost is lower. The waterproof shell of the waterproof assembly guides the water flow to flow away quickly, reducing the accumulation of rainwater. The cable enters the substation through the access surface, then passes through the partition plate, and finally enters the substation. Due to the inclination of the partition plate, it is difficult for rainwater to enter the substation through the partition plate, and rainwater is not easy to invade the lead hole for the cable to pass through. The inclination of the water guide surface plays a role in guiding the cable, so that the cable is stably arranged in the waterproof shell.

[0009] Optionally, the space in the waterproof shell is divided into an installation cavity and a wiring cavity by the partition plate, the connecting surface opens the installation cavity, and the outer shell is provided with an embedded convex shell which protrudes and suspends, fills the installation cavity, and is provided with a wiring hole corresponding to the lead hole.

[0010] By adopting the above technical scheme, the waterproof shell can be positioned and installed through the embedded convex on the outer shell. At the same time, the existence of the embedded convex makes the outer shell more integrated, and rainwater cannot enter the gap between the outer shell and the waterproof shell to enter the gap between the outer shell and the embedded convex, so the waterproof property is not determined by the sealing property of the waterproof shell installation.

[0011] Optionally, an inclined block is arranged on the inner side wall of the water guide surface, the inclined block is arranged downward away from the partition plate, and the upper side of the inclined block is consistent in height with the lower side of the lead hole.

[0012] By adopting the technical scheme, the cable is better guided by the guide block, and the guide block supports the cable to reduce the gap between the upper side of the cable and the lead hole.

[0013] Optionally, the guide block is provided with a slot groove matched with the cable.

[0014] By adopting the technical scheme, the cable is better guided by the guide block, and the guide block supports the cable to reduce the gap between the upper side of the cable and the lead hole.

[0015] Optionally, the guide block is provided with a water guide slope on both sides in the extension direction of the cable.

[0016] By adopting the technical scheme, the accumulation of rainwater on the cable is reduced, and the water flow is quickly drained.

[0017] Optionally, the waterproof shell is provided with a fastening block at both ends, the shell is provided with a clamping block on both sides of the embedded convex shell, the clamping block is provided with a fastening hole for inserting the fastening block, and the clamping block is inserted and assembled with the fastening block.

[0018] By adopting the technical scheme, the waterproof shell is fixed on the shell by the clamping block sliding and the fastening block inserting, which is more convenient, and the waterproof shell is more convenient to install and maintain or replace.

[0019] Optionally, the waterproof assembly further comprises a waterproof plate, the waterproof plate is provided with a sealing hole for the cable to pass through, one side of the waterproof plate is fixed with the top cover, the other side of the waterproof plate extends downward and overhangs, and the waterproof plate covers the space above the waterproof shell.

[0020] By adopting the technical scheme, the waterproof plate fastens the upper part of the cable on one hand, reduces the force of the cable on the waterproof shell, and on the other hand, the waterproof plate blocks the waterproof shell, reducing the situation that rain directly falls on the waterproof shell.

[0021] Optionally, the waterproof plate comprises a base plate and a clamping sealing block, the clamping sealing block has two, the two clamping sealing blocks are assembled into a ring and sleeved on the cable, and the base plate is provided with an embedded hole for embedding the two clamping sealing blocks after assembly.

[0022] By adopting the technical scheme, the waterproof plate can first clamp the cable through the clamping sealing block, and then the clamping sealing block is inserted and fixed with the base plate, and the base plate is fixed with the top cover, so that the whole installation process is more convenient, and the sealing between the cable and the waterproof plate is also guaranteed, compared with the cable directly passing through the waterproof plate, the waterproof shell can be separately disassembled and replaced.

[0023] To sum up, by arranging a waterproof component on the upper part of the shell, the cable enters the substation after passing through the waterproof component, and the waterproof component plays a role in isolating rainwater, thereby improving the waterproof effect. At the same time, if the waterproof component is invaded by rainwater after long-term use, resulting in reduced waterproof effect, it can be more conveniently replaced by replacing the waterproof component for maintenance, and the maintenance cost is lower. Among them, the waterproof shell of the waterproof component guides the water to flow away quickly through the water guide surface, reducing the accumulation of rainwater, and the cable enters the waterproof shell through the access surface and then enters the substation through the partition plate. Since the partition plate is inclined, it is difficult for rainwater to enter the substation through the partition plate, and rainwater is not easy to infect the lead hole on the partition plate for the cable to pass through. The inclination of the water guide surface plays a role in guiding the cable, so that the cable is stably placed in the waterproof shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a structural diagram of a substation in an embodiment of the present application;

[0025] Figure 2 Schematic diagram of the structure of the waterproof housing in the embodiment of the present application;

[0026] Figure 3 is a cross-sectional view of the installation structure of the waterproof housing in an embodiment of the present application;

[0027] Figure 4 is a schematic diagram of a partial structure of a substation in an embodiment of the present application;

[0028] Figure 5 It is a structural schematic diagram of the waterproof board in an embodiment of the present application.

[0029] Explanation of the accompanying reference numerals: 1. base; 2. outer shell; 21. interlocking convex shell; 22. wiring hole; 23. clamping block; 231. fastening hole; 3. top cover; 4. waterproof assembly; 5. waterproof shell; 51. connection surface; 52. access surface; 521. access port; 53. water diversion surface; 54. water guide surface; 55. partition plate; 551. lead-in hole; 56. installation cavity; 57. wiring cavity; 58. fastening block; 6. waterproof board; 61. substrate; 611. embedding hole; 62. clamping sealing block; 63. sealing hole; 7. sealing layer; 8. guide block; 81. embedding groove; 82. water guide slope. DETAILED DESCRIPTION

[0030] The following is combined with Figures 1-5 This application is described in further detail.

[0031] An embodiment of the present application discloses a waterproof prefabricated substation.

[0032] Reference Figure 1The waterproof prepackaged transformer substation comprises a base 1, an outer shell 2 and a top cover 3 from bottom to top, the base 1 is generally made of channel steel, angle steel, flat steel, steel plate and the like and is fixed and shaped by welding or bolt connection, strip-shaped holes and circular holes with proper size are additionally formed at corresponding positions to meet the needs of ventilation, heat dissipation and incoming and outgoing lines, a foundation is poured below the base 1 and a cable trench is formed, the outer shell 2 and the top cover 3 are made of channel steel, angle steel, steel plate, aluminum alloy plate, color steel plate, cement plate and the like and are fixed and shaped by bending, welding or screw, hinge or related special accessories, in the embodiment, the cable is connected from above the transformer substation, so that the cable trench is not needed.

[0033] The top cover 3 is in the shape of a two-sloped roof, the two sloped surfaces of the top cover 3 are arranged on two sides along the width direction of the transformer substation, the outer edge of the top cover 3 extends out of the outer shell 2 and is suspended, the upper part of the outer shell 2 away from the base 1 is provided with a waterproof assembly 4 for cable connection, the waterproof assembly 4 is located on one side of the two sloped surfaces of the top cover 3, i.e. the waterproof assembly 4 is located on the outer shell 2 at one end of the length direction of the transformer substation, so that the rainwater flowing down the top cover 3 is not easy to flow into the waterproof assembly 4 when the rainwater flows along the sloped surfaces of the top cover 3.

[0034] With reference to Figure 2 and Figure 3 , the waterproof assembly 4 comprises a waterproof shell 5 and a waterproof plate 6, the waterproof shell 5 is in the shape of a parallelogram with obtuse and acute angles, the acute angle is 60 degrees in the embodiment, four surfaces of the four edges of the cross section of the waterproof shell 5 are respectively set as a connecting surface 51, a connecting surface 52, a water guiding surface 53 and a water guiding surface 54, a partition plate 55 is integrally arranged in the waterproof shell 5, the partition plate 55 divides the internal space of the waterproof shell 5 into two parts, specifically, the internal space of the waterproof shell 5 is divided into an installation cavity 56 and a wiring cavity 57 by the partition plate 55, the connecting surface 51 is open, so that one side of the installation cavity 56 is exposed, the water guiding surface 53 is connected with the connecting surface 51 and the included angle is acute, the water guiding surface 54 is connected with the connecting surface 51 and the included angle is obtuse, the water guiding surface 53 is located above the water guiding surface 54, the cross section of the waterproof shell 5 is divided into two acute-angled triangles by the partition plate 55, the connecting surface 52 is provided with a connecting hole 521 for the cable to pass through and enter the wiring cavity 57, the connecting hole 521 extends to the water guiding surface 54, the partition plate 55 is provided with a lead hole 551 for the cable to pass through, the lead hole 551 is connected with the installation cavity 56 and the wiring cavity 57.

[0035] With reference to Figure 3 and Figure 4 , the outer shell 2 is provided with an embedded convex shell 21, the embedded convex shell 21 is hollow and communicates with the internal space of the outer shell 2, the embedded convex shell 21 fills the installation cavity 56 through the open connecting surface 51, the embedded convex shell 21 is provided with a wiring hole 22 corresponding to the lead hole 551, the waterproof shell 5 is fixed and sealed with the embedded convex shell 21 through the connecting surface 51, i.e. the connection between the waterproof shell 5 and the embedded convex shell 21 is completed.

[0036] The specific fixing method of the chimeric convex shell 21 and the waterproof shell 5 is as follows: fastening blocks 58 are horizontally overhangingly provided on both end surfaces of the waterproof shell 5, and the outer shell 2 is horizontally slidably provided with clamping blocks 23 on both sides of the chimeric convex shell 21. The clamping blocks 23 are horizontally opened with fastening holes 231 for inserting the fastening blocks 58. The clamping blocks 23 slide horizontally and are plugged into and matched with the fastening blocks 58. The clamping blocks 23 restrict the fastening blocks 58, thereby limiting the movement of the waterproof shell 5 away from the outer shell 2 and maintaining the connection state with the chimeric convex shell 21. The sliding cooperation method between the clamping blocks 23 and the outer shell 2 can specifically adopt the cooperation form of T-shaped slide rails and T-shaped slide grooves. At the same time, a sealing layer 7 is sandwiched between the waterproof shell 5 and the chimeric convex shell 21, thereby improving the sealing between the waterproof shell 5 and the chimeric convex shell 21. The sealing layer 7 can be fixed to the outer wall of the chimeric convex shell 21 by gluing.

[0037] Reference Figure 2 and Figure 3 A guide block 8 is provided on the inner wall of the installation cavity 56 in the area corresponding to the water guide surface 54. The guide block 8 corresponds to the position of the access port 521. The guide block 8 is tilted downward in the direction away from the partition plate 55, and the upper side of the guide block 8 is at the same height as the lower side of the lead-in hole 551. The guide block 8 is provided with a semicircular embedding groove 81 for adapting the cable. The embedding groove 81 extends through the front and rear of the guide block 8 in the direction away from the partition plate 55. At the same time, the guide block 8 is provided with water guide slopes 82 on both sides of the embedding groove 81, and the guide slopes are inclined toward the water guide surface 54 in the direction away from the embedding groove 81.

[0038] Reference Figure 1 and Figure 5 The waterproof board 6 includes a base plate 61 and a clamping sealing block 62. An embedding hole 611 is opened in the middle of the base plate 61. There are two clamping sealing blocks 62. The two clamping sealing blocks 62 are assembled into a circular ring and sleeved on the outside of the cable. A sealing hole 63 for the cable to pass through is formed between the two clamping sealing blocks 62, wherein the circular ring formed by the two clamping sealing blocks 62 is a stepped column, and the smaller diameter part of the stepped column formed by the two clamping sealing blocks 62 is embedded in the embedding hole 611. The clamping sealing block 62 is squeezed by the inner wall of the base plate 61 to maintain the clamping and sealing of the cable by the clamping sealing block 62. At the same time, one side of the waterproof board 6 is fixed to the top cover 3, and a groove adapted to the waterproof board 6 is opened on the side where the waterproof board 6 is fixed to the top cover 3, so as to adapt to the inverted V-shape of the waterproof board 6. The waterproof board 6 is fixed to the top cover 3 by screws or welding. The other side of the waterproof board 6 extends downward and overhangs. The waterproof board 6 covers the space above the waterproof shell 5.

[0039] The implementation principle of a waterproof prefabricated substation in an embodiment of the present application is as follows: the cable passes through the waterproof board 6 and the waterproof shell 5 in sequence and then enters the outer shell 2. The waterproof board 6 and the waterproof shell 5 reduce the position where rainwater directly contacts the cable when entering the outer shell 2, thereby maintaining sealing.

[0040] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A waterproof prefabricated substation, characterized by: From bottom to top, the invention comprises a base (1), a shell (2) and a top cover (3). A waterproof component (4) for cable access is provided on the upper portion of the shell (2) away from the base (1). The waterproof component (4) comprises a waterproof shell (5). The cross section of the waterproof shell (5) is a parallelogram and has an obtuse angle and an acute angle. The four surfaces of the waterproof shell (5) corresponding to the four sides of the cross section are respectively set as a connecting surface (51), an access surface (52), a water guide surface (53) and a water guide surface (54). The connecting surface (51) is open, and the waterproof shell (5) is fixed and sealed to the shell (2) through one side of the connecting surface (51). The water guide surface (53) is connected to the connecting surface (51). The water guide surface (54) is connected to the connection surface (51) and the included angle is an acute angle. The water guide surface (53) is connected to the connection surface (51) and the included angle is an obtuse angle. The water guide surface (53) is located above the water guide surface (54). A partition plate (55) is integrally provided inside the waterproof shell (5). The partition plate (55) divides the internal space of the waterproof shell (5) into two parts. The partition plate (55) divides the cross section of the waterproof shell (5) into two acute triangles. The access surface (52) is provided with an access port (521) for the cable to pass through. The access port (521) extends to the water guide surface (54). The partition plate (55) is provided with a lead hole (551) for the cable to pass through.

2. The waterproof prefabricated substation according to claim 1, characterized in that: The space inside the waterproof shell (5) is divided into a mounting cavity (56) and a wiring cavity (57) with the partition plate (55) as a boundary. The connecting surface (51) opens the mounting cavity (56). The outer shell (2) is provided with a protruding and cantilevered engaging convex shell (21). The engaging convex shell (21) fills the mounting cavity (56). The engaging convex shell (21) is provided with a wiring hole (22) corresponding to the lead hole (551).

3. The waterproof prefabricated substation according to claim 1, characterized in that: A guide block (8) is provided on the inner side wall of the water guide surface (54), and the guide block (8) is tilted downward in a direction away from the partition plate (55), and the upper side of the guide block (8) is at the same height as the lower side of the wire guide hole (551).

4. The waterproof prefabricated substation according to claim 3, characterized in that: The guide block (8) is provided with an embedding groove (81) for adapting the cable.

5. The waterproof prefabricated substation according to claim 3, characterized in that: The guide block (8) is provided with water guiding slopes (82) on both sides along the cable extension direction.

6. The waterproof prefabricated substation according to claim 2, characterized in that: The waterproof shell (5) is provided with fastening blocks (58) on both end surfaces thereof, and the outer shell (2) is provided with clamping blocks (23) on both sides of the engaging convex shell (21) thereof. The clamping blocks (23) are provided with fastening holes (231) for inserting the fastening blocks (58). The clamping blocks (23) slide and are engaged with the fastening blocks (58).

7. The waterproof prefabricated substation according to claim 1, characterized in that: The waterproof assembly (4) further comprises a waterproof plate (6), the waterproof plate (6) being provided with a sealing hole (63) for the cable to pass through, one side of the waterproof plate (6) being fixed to the top cover (3), and the other side of the waterproof plate (6) being inclined and cantilevered downward, and the waterproof plate (6) covering the space above the waterproof shell (5).

8. The waterproof prefabricated substation according to claim 7, characterized in that: The waterproof plate (6) comprises a base plate (61) and a clamping sealing block (62). There are two clamping sealing blocks (62). The two clamping sealing blocks (62) are assembled into a circular ring and sleeved outside the cable. The base plate (61) is provided with an embedding hole (611) for embedding the two clamping sealing blocks (62) after assembly.

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