Drainage base and box-type substation

By designing a multi-drainage section and flow guiding components for the drainage base, the liquid is discharged by gravity potential energy, which solves the problem of rust caused by liquid accumulation in the transformer base, extends the transformer's lifespan, and improves the stability of the prefabricated substation.

CN224217962UActive Publication Date: 2026-05-08FOSHAN EAGLERISE POWER SCI & TECH SHUNDE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN EAGLERISE POWER SCI & TECH SHUNDE CO LTD
Filing Date
2025-04-22
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The transformer section of existing Chinese-style prefabricated substations is prone to liquid accumulation due to base depressions, which may cause the transformer to rust, shorten its service life, and reduce the overall stability of the prefabricated substation.

Method used

Design a drainage base comprising multiple drainage sections and a confluence section. Utilize flow guiding components and drainage pipes to achieve liquid gravity flow, preventing liquid accumulation and ensuring timely discharge. Combined with filter components and fluid control devices, ensure smooth liquid discharge.

Benefits of technology

It effectively prevents liquid accumulation on the transformer base, avoids rusting, extends the service life of the transformer, and improves the overall stability and ease of operation of the prefabricated substation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of box-type substations, in particular to a drainage base and a box-type substation, the drainage base comprises a base body, and the base body is provided with a liquid outlet penetrating along the height direction of the base body in a transformer placement area; the flow guide assembly is arranged at the bottom end of the base body; the liquid outlet end of the first flow guide groove inclines downwards and is connected to the liquid inlet end of the second flow guide groove, the liquid outlet end of the second flow guide groove and the liquid outlet end of the third flow guide groove incline downwards and are connected to the liquid inlet end of the confluence groove, and the liquid outlet end of the confluence groove inclines downwards and extends to the edge of the base body. The transformer can effectively prevent the base corresponding to the transformer placing area from generating liquid accumulation, can also prevent the transformer body from rusting caused by long-time retention of the accumulated liquid, and solves the problems that the base corresponding to the existing transformer part is easy to generate liquid accumulation, the service life of the transformer body is shortened, and the transformer body cannot be damaged. And the overall use stability of the box-type substation is also reduced.
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Description

Technical Field

[0001] This utility model relates to the field of prefabricated substation technology, and in particular to a drainage base and a prefabricated substation. Background Technology

[0002] As a new type of prefabricated substation, the Chinese-style prefabricated substation plays an important role in the field of new energy power generation and is widely used in photovoltaic power generation and wind power generation projects. This type of prefabricated substation fully integrates the technical features of American and European prefabricated substations in its design process, and has the advantages of small footprint, high operational safety and convenient maintenance.

[0003] Existing Chinese-style prefabricated substations mainly consist of three parts: a high-voltage compartment, a low-voltage compartment, and a transformer, all of which are fixedly mounted on a base. The transformer section houses the transformer body. Since the transformer body is directly exposed to the atmosphere, outdoor transformers, such as oil-immersed transformers, are typically chosen. These outdoor transformers possess excellent waterproof performance, effectively preventing moisture from entering the transformer body and extending its overall service life.

[0004] However, transformers are heavy, and their weight distribution is uneven due to their internal structure. Furthermore, the base plate is often difficult to ensure is completely flat, and under various influences, the base corresponding to the transformer section may dent due to varying pressure. In rainy weather, water easily accumulates in the base corresponding to the transformer section. Moreover, during actual use, the transformer itself may leak oil due to aging of gaskets or rubber strips, cracks in the tank welds, etc. The accumulated water and leaked transformer oil form a stagnant liquid. If this liquid remains for a long time, it can even cause the transformer to rust. This not only shortens the transformer's lifespan but also adversely affects the overall stability of the prefabricated substation. Utility Model Content

[0005] The main purpose of this utility model is to provide a drainage base and a box-type substation, which can effectively prevent liquid accumulation in the base corresponding to the transformer placement area and avoid the transformer body from rusting due to prolonged liquid retention. It solves the problem that the existing base corresponding to the transformer part is prone to liquid accumulation due to the depression, which may even cause the transformer body to rust, not only shortening the service life of the transformer body, but also reducing the overall stability of the box-type substation.

[0006] To achieve the above objectives, the drainage base proposed in this utility model is applied to a prefabricated substation and includes:

[0007] The base body has a transformer placement area, and the base body has a drain outlet extending through its height in the transformer placement area; the drain outlet includes a first drain section, a second drain section, a third drain section and a confluence section, the two ends of the second drain section are respectively connected to the first drain section and the third drain section, one end of the confluence section is connected to the second drain section and the third drain section, and the other end of the confluence section extends toward the edge of the base body;

[0008] A flow guiding assembly is disposed at the bottom end of the base body. The flow guiding assembly includes a first flow guiding member, a second flow guiding member, a third flow guiding member, and a confluence member. The first flow guiding member has a first flow guiding groove corresponding to the first drainage section, the second flow guiding member has a second flow guiding groove corresponding to the second drainage section, the third flow guiding member has a third flow guiding groove corresponding to the third drainage section, and the confluence member has a confluence member corresponding to the confluence section. The outlet end of the first flow guiding groove is inclined downward and connected to the inlet end of the second flow guiding groove. The outlet ends of the second flow guiding groove and the third flow guiding groove are respectively inclined downward and connected to the inlet end of the confluence member. The outlet end of the confluence member extends downward to the edge of the base body.

[0009] Optionally, the flow guiding assembly further includes a flow guide tube, the inlet end of which is connected to the outlet end of the confluence channel, and the outlet end of which penetrates the side wall of the base body and extends to the outside of the base body.

[0010] Optionally, the drainage base further includes a fluid control component connected to the outlet end of the drainage pipe to control the opening and closing of the drainage pipe.

[0011] Optionally, the drainage base further includes a filter assembly located within the first drainage section, the second drainage section, the third drainage section, and the confluence section, for filtering the liquid flowing into the first drainage section, the second drainage section, the third drainage section, and the confluence section;

[0012] The filtration assembly includes several first filter elements, and the first drain section, the second drain section, the third drain section and the confluence section are each provided with a first filter element.

[0013] Optionally, each of the first filter elements is provided with a plurality of first filter holes, and the filter assembly further includes a plurality of second filter elements, each of the second filter elements is provided with a plurality of second filter holes, the second filter elements and the first filter elements are arranged in a one-to-one correspondence and abut against each other, and the size of the second filter hole is smaller than the size of the first filter hole.

[0014] Optionally, the first guide member, the second guide member, the third guide member, and the confluence member each have two symmetrical bends at their ends along their depth direction and near the end of the first filter member, and the first guide member, the second guide member, the third guide member, and the confluence member respectively place the first filter member through the two bends.

[0015] Optionally, the drainage base further includes a plurality of baffles, all of which are located at the top of the base body. The plurality of baffles are connected in sequence and arranged around the transformer placement area to prevent liquid in the transformer placement area from overflowing outward.

[0016] Optionally, the first guide member, the second guide member, the third guide member, and the confluence member are all rectangular in shape.

[0017] Optionally, the third flow guide and the flow collector are integrally formed.

[0018] A first pair of interfaces is provided at the connection between the first guide member and the second guide member, and the liquid outlet end of the first guide channel is connected to the liquid inlet end of the second guide channel through the first pair of interfaces;

[0019] The integrally molded structure has a second pair of interfaces, and the integrally molded structure is connected to the liquid outlet end of the second guide channel through the second pair of interfaces.

[0020] This utility model also proposes a box-type substation, including a transformer body and a drainage base as described in any one of the above.

[0021] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0022] This invention, by setting up a first drainage section, a second drainage section, a third drainage section, and a confluence section, provides three drainage sections and one confluence section for the base corresponding to the transformer placement area to allow liquid to flow in. This effectively improves drainage efficiency by discharging liquid from different locations on the base body, thereby preventing liquid accumulation on the base corresponding to the transformer placement area. Furthermore, this invention connects the outlet end of the first guide channel downwards to the inlet end of the second guide channel, connects the outlet ends of the second and third guide channels downwards to the inlet end of the confluence channel, and extends the outlet end of the confluence channel downwards to the edge of the base body. This creates height differences between the inlet and outlet ends of the first, second, and third guide channels, and between the inlet and outlet ends of the confluence channel. By setting these height differences, gravitational potential energy is utilized... The system enables gravity-fed liquid flow, allowing the liquid in the first guide channel to automatically flow into the second guide channel, and then into the confluence channel, where the liquids from the second and third guide channels flow into the collector channel. This process collects all the liquids in the collector channel and discharges them from the base body. This prevents liquid accumulation on the base corresponding to the transformer placement area and avoids rusting of the transformer body due to prolonged liquid retention, thus extending the service life of the transformer body and ensuring its stable operation. Ultimately, this improves the overall operational stability of the prefabricated substation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a drainage base according to an embodiment of the present invention;

[0024] Figure 2 This is a partially exploded view of a drainage base (concealing filter components and baffles) according to an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of the first, second, and third flow guides of the drainage base according to an embodiment of the present utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the first flow guide of the drainage base according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the second flow guide of the drainage base according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the third flow guide of the drainage base according to an embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of the drainage base according to another embodiment of the present invention;

[0030] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0031] Figure 9 for Figure 7 Enlarged view of point B in the middle;

[0032] Figure 10 This is a schematic diagram of the structure of the first and second filter elements of the drainage base according to an embodiment of the present utility model.

[0033] Figure 11 This is a schematic diagram of the structure of a prefabricated substation according to an embodiment of the present invention.

[0034] In the attached diagram: 1. Base body; 11. Transformer placement area; 12. Drain outlet; 121. First drainage section; 122. Second drainage section; 123. Third drainage section; 124. Combination section; 13. Base plate; 131. Mounting hole; 14. Frame; 15. Support component; 16. Reinforcing assembly; 161. First reinforcing component; 162. Second reinforcing component; 2. Flow guiding assembly; 21. First flow guiding component; 211. First flow guiding groove; 212. First shielding part; 213. First mating interface; 22. Second flow guiding component; 2 21. Second guide channel; 23. Third guide component; 231. Third guide channel; 232. Second shielding part; 233. Second connecting interface; 24. Combining component; 241. Combining channel; 25. Drain pipe; 26. Bending part; 3. Fluid control component; 4. Filter assembly; 41. First filter element; 411. First filter hole; 42. Second filter element; 421. Second filter hole; 5. Partition; 51. Through hole; 52. First connecting plate; 53. Second connecting plate; 54. Third connecting plate; 6. Transformer body. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0039] This utility model proposes a drainage base.

[0040] In the embodiments of this utility model, such as Figures 1 to 6 As shown, this drainage base is used in a prefabricated substation and includes:

[0041] The base body 1 has a transformer placement area 11. The base body 1 has a drain port 12 extending through its height in the transformer placement area 11. The drain port 12 includes a first drain section 121, a second drain section 122, a third drain section 123, and a confluence section 124. The two ends of the second drain section 122 are respectively connected to the first drain section 121 and the third drain section 123. One end of the confluence section 124 is connected to the second drain section 122 and the third drain section 123. The other end of the confluence section 124 extends toward the edge of the base body 1.

[0042] The flow guiding component 2 is disposed at the bottom end of the base body 1. The flow guiding component 2 includes a first flow guiding member 21, a second flow guiding member 22, a third flow guiding member 23, and a confluence member 24. The first flow guiding member 21 is provided with a first flow guiding groove 211 corresponding to the first drainage section 121. The second flow guiding member 22 is provided with a second flow guiding groove 221 corresponding to the second drainage section 122. The third flow guiding member 23 is provided with a third flow guiding groove 231 corresponding to the third drainage section 123. The confluence member 24 is provided with a confluence groove 241 corresponding to the confluence section 124. The liquid outlet end of the first flow guiding groove 211 is inclined downward and connected to the liquid inlet end of the second flow guiding groove 221. The liquid outlet ends of the second flow guiding groove 221 and the third flow guiding groove 231 are respectively inclined downward and connected to the liquid inlet end of the confluence groove 241. The liquid outlet end of the confluence groove 241 extends downward to the edge of the base body 1.

[0043] This utility model provides three drainage sections and one confluence section 124 for the base corresponding to the transformer placement area 11 by setting up a first drainage section 121, a second drainage section 122, a third drainage section 123 and a confluence section 124 for liquid to flow in. This ensures that liquid from different positions on the base corresponding to the transformer placement area 11 is discharged outside the base body 1 as much as possible, effectively improving drainage efficiency and thus preventing liquid accumulation on the base corresponding to the transformer placement area 11. This invention further establishes a height difference between the inlet and outlet ends of the first guide channel 211, the inlet end of the second guide channel 221, and the inlet and outlet ends of the second guide channel 221 and the third guide channel 231, respectively, and extends the outlet end of the confluence channel 241 downwards to the edge of the base body 1. This creates a height difference between the inlet and outlet ends of the first guide channel 211, the second guide channel 221, the third guide channel 231, and the confluence channel 241. By setting this height difference, the weight... The liquid flows by gravity through the action of potential energy, causing the liquid in the first guide channel 211 to automatically flow into the second guide channel 221. The liquid in the second guide channel 221 and the liquid in the third guide channel 231 then automatically flow into the confluence channel 241, thus collecting all the liquid in the confluence channel 241 and discharging it outside the base body 1. This prevents liquid accumulation in the base corresponding to the transformer placement area 11 and avoids rusting of the transformer body 6 due to prolonged liquid retention, extending the service life of the transformer body 6 and ensuring its stable operation, thereby improving the overall operational stability of the prefabricated substation. This invention solves the problem that existing transformer bases, due to indentations, are prone to liquid accumulation, which can even lead to rusting of the transformer body, shortening its service life and reducing the overall operational stability of the prefabricated substation.

[0044] To elaborate further, such as Figure 3 As shown, the depth of the first guide channel 211 gradually increases from the liquid inlet end to the liquid outlet end; the depth of the second guide channel 221 gradually increases from the liquid inlet end to the liquid outlet end; the depth of the third guide channel 231 gradually increases from the liquid inlet end to the liquid outlet end; and the depth of the confluence section 124 gradually increases from the liquid inlet end to the liquid outlet end. The depth direction of the first guide channel 211, the second guide channel 221, the third guide channel 231, and the confluence channel 241 is the height direction of the base body 1, that is, the bottom surfaces of the first guide channel 211, the second guide channel 221, the third guide channel 231, and the confluence channel 241 are all inclined surfaces, and the maximum depth of the first guide channel 211 < the maximum depth of the second guide channel 221 < the maximum depth of the third guide channel 231 < the maximum depth of the confluence channel 241.

[0045] like Figure 1 , 7 As shown in Figure 8, in one embodiment of this application, the flow guiding component 2 further includes a flow guiding pipe 25, the inlet end of the flow guiding pipe 25 is connected to the outlet end of the confluence channel 241, and the outlet end of the flow guiding pipe 25 penetrates the side wall of the base body 1 and extends to the outside of the base body 1.

[0046] By setting up the drainage pipe 25, when the liquid from the first guide channel 211, the second guide channel 221 and the third guide channel 231 gathers into the confluence channel 241, the gathered liquid will flow along the drainage pipe 25 and eventually be discharged from the outlet end of the drainage pipe 25. Since the outlet end of the drainage pipe 25 maintains a certain distance from the side wall of the base body 1, the liquid will not stick to the side wall of the base body 1 during the discharge process, thereby preventing the liquid from seeping into the interior of the base body 1 and avoiding rusting of the base body 1 due to liquid contamination, thus improving the service life of this drainage base.

[0047] like Figure 1 and 2As shown, in one embodiment of this utility model, the base body 1 includes a base plate 13 (with a drain port 12 disposed on the base plate 13), a frame 14, a plurality of support members 15, and a plurality of reinforcing components 16. The frame 14, the plurality of support members 15, and the plurality of reinforcing components 16 are all located at the bottom end of the base plate 13, and the frame 14 is arranged around the bottom edge of the base plate 13. The plurality of support members 15 and the plurality of reinforcing components 16 are all arranged corresponding to the position of the transformer placement area 11, wherein the two ends of the support members 15 are respectively connected to the frame 14 along the width direction of the base plate 13, and the plurality of support members 15 are spaced apart along the length direction of the base plate 13. The reinforcing component 16 includes a first reinforcing member 161 and a second reinforcing member 162. The two ends of the first reinforcing member 161 are respectively connected to two adjacent support members 15, and at least two first reinforcing members 161 are provided between two adjacent support members 15. The first reinforcing members 161 strengthen the two adjacent support members 15. Of course, the first reinforcing members 161 can be set according to actual needs, and not every two adjacent support members 15 are provided with a first reinforcing member 161. The two ends of the second reinforcing member 162 are respectively connected to the support members 15 and the frame 14 along the length direction of the base plate 13. The second reinforcing member 162 strengthens the support members 15 and the frame 14.

[0048] In one embodiment of this utility model, the frame 14 is formed by connecting four channel steels end to end in sequence; the support member 15 and the first reinforcing member 161 are both channel steels; the second reinforcing member 162 is L-shaped; as shown Figure 7 As shown, the base plate 13 has a mounting hole 131 extending through its own thickness direction, and the transformer body 6 is fixedly mounted on the base plate 13 through the mounting hole 131.

[0049] like Figure 2 As shown, in another embodiment of this utility model, the first guide member 21 and the third guide member 23 are respectively disposed through a plurality of support members 15. The support members 15 can provide support for the first guide member 21 and the third guide member 23 to ensure that the first guide member 21 and the third guide member 23 are stably connected to the base plate 13. The second guide member 22 is disposed through a plurality of second reinforcing members 162. The second reinforcing members 162 can provide support for the second guide member 22 to ensure that the second guide member 22 is stably connected to the base plate 13.

[0050] like Figure 1 , 7 As shown in Figure 8, in one embodiment of this application, the drainage base further includes a fluid control element 3, which is connected to the liquid outlet end of the drainage pipe 25 to control the opening and closing of the drainage pipe 25.

[0051] By setting up the fluid control component 3, when the liquid flows to the drainage pipe 25, simply turn on the fluid control component 3 to collect and discharge the liquid in a concentrated manner. Operators do not need to clean it frequently. At the same time, the liquid can be collected in a special container and then treated uniformly, such as through environmentally friendly disposal. This can prevent the liquid discharged from the drainage pipe 25 from polluting the environment and also makes this drainage base easy to operate.

[0052] Preferably, the fluid control component 3 is a valve, such as a gate valve or a stop valve.

[0053] like Figures 7 to 9 As shown, in one embodiment of this application, the drainage base further includes a filter assembly 4, which is located in the first drainage section 121, the second drainage section 122, the third drainage section 123 and the confluence section 124, and is used to filter the liquid flowing into the first drainage section 121, the second drainage section 122, the third drainage section 123 and the confluence section 124.

[0054] The filter assembly 4 includes several first filter elements 41, and the first drain section 121, the second drain section 122, the third drain section 123 and the confluence section 124 are each provided with a first filter element 41.

[0055] The filter assembly 4 includes several first filter elements 41. By correspondingly arranging the first filter elements 41 at the positions of the first drain section 121, the second drain section 122, the third drain section 123, and the confluence section 124, the liquid can be filtered. The liquid filtered by the first filter elements 41 then flows into the flow guide assembly 2. In this way, it can prevent impurities such as garbage and leaves from entering the flow guide assembly 2 with the liquid, avoid the blockage of the flow guide assembly 2 due to impurities remaining in the flow guide assembly 2, maintain the smooth flow of liquid inside the flow guide assembly 2, and thus ensure that the liquid can be smoothly discharged from the base body 1.

[0056] Preferably, the first filter element 41 is detachably connected to the first drainage section 121, the second drainage section 122, the third drainage section 123, and the confluence section 124. This allows for quick cleaning by simply removing the first filter element 41 when it needs to be replaced or the flow guiding assembly 2 needs to be cleaned, improving operational convenience and work efficiency.

[0057] like Figures 1 to 3As shown, in one embodiment of this utility model, the first drainage section 121 and the third drainage section 123 are parallel to each other and both extend along the length direction of the base body 1. The second drainage section 122 is perpendicular to the first drainage section 121 and the third drainage section 123. The third drainage section 123 and the confluence section 124 are located on the same straight line. In this configuration, the three drainage sections surround the transformer body 6, thus maximizing the drainage efficiency by draining liquid from different locations on the base corresponding to the transformer placement area 11. This prevents liquid accumulation on the base, avoids rusting of the transformer body 6, and extends the service life of the transformer body 6.

[0058] It should be noted that the length and width of the first drain section 121, the second drain section 122, the third drain section 123, and the busbar section 124 can be adjusted according to the actual size of the transformer body 6. For example, if the size of the transformer body 6 placed in the transformer placement area 11 is small, the length and width of the first drain section 121, the second drain section 122, the third drain section 123, and the busbar section 124 can be reduced; similarly, if the size of the transformer body 6 is large, the length and width of the first drain section 121, the second drain section 122, the third drain section 123, and the busbar section 124 can be increased.

[0059] like Figures 7 to 10 As shown, in one embodiment of this application, each first filter element 41 is provided with a plurality of first filter holes 411, and the filter assembly 4 further includes a plurality of second filter elements 42, each second filter element 42 is provided with a plurality of second filter holes 421, the second filter elements 42 and the first filter elements 41 are arranged in a one-to-one correspondence and abut against each other, and the size of the second filter hole 421 is smaller than the size of the first filter hole 411.

[0060] By setting a first filter element 41 and a second filter element 42, and with the size of the second filter hole 421 being smaller than the size of the first filter hole 411, the liquid flowing into the first drain section 121, the second drain section 122, the third drain section 123, and the confluence section 124 will undergo two stages of filtration. This separates impurities of different sizes from the liquid, and the liquid filtered by the first filter element 41 and the second filter element 42 has a higher degree of cleanliness. This can prevent blockage inside the flow guide assembly 2, thereby ensuring that the collected liquid can be smoothly discharged from the base body 1.

[0061] In one embodiment of the present invention, the end face of the second filter element 42 abuts against the bottom end face of the first filter element 41, that is, the second filter element 42 is located between the first filter element 41 and the first guide element 21, or between the first filter element 41 and the second guide element 22, or between the first filter element 41 and the third guide element 23, or between the first filter element 41 and the confluence element 24.

[0062] like Figure 10 As shown, in another embodiment of this utility model, the overall size of the first filter element 41 is larger than the overall size of the second filter element 42. Optionally, the outer edge of the second filter element 42 is located outside all the first filter holes 411 of the first filter element 41.

[0063] Preferably, a plurality of first filter holes 411 are evenly distributed in each first filter element 41, and a plurality of second filter holes 421 are evenly distributed in each second filter element 42.

[0064] Preferably, the first filter hole 411 is an elongated hole, and the second filter hole 421 is a mesh hole.

[0065] like Figures 4 to 6 As shown, in one embodiment of this application, the first guide member 21, the second guide member 22, the third guide member 23 and the confluence member 24 are each provided with two symmetrical bends 26 at their ends along their own depth direction and near the end of the first filter member 41. The first guide member 21, the second guide member 22, the third guide member 23 and the confluence member 24 respectively place the first filter member 41 through the two bends 26.

[0066] The first guide member 21, the second guide member 22, the third guide member 23, and the confluence member 24 each have two symmetrical bends 26 along their depth direction and near the end of the first filter member 41. By setting two symmetrical bends 26, not only can the first filter member 41 be provided with stable support, so that the first filter member 41 can be stably placed at the end of the first guide member 21, the second guide member 22, the third guide member 23, and the confluence member 24, but it is also convenient to pick up and put down the first filter member 41, which can improve work efficiency.

[0067] To elaborate further, such as Figure 4 As shown, the first guide member 21 has a first blocking portion 212 at both ends of its length direction (i.e., the liquid inlet end and the liquid outlet end of the first guide member 21). The first blocking portion 212 is used to prevent the liquid in the first guide channel 211 from overflowing outward, thereby ensuring that all the liquid in the first guide channel 211 flows into the second guide channel 221; as Figure 6 As shown, the third guide member 23 has a second shielding part 232 at one end (i.e., the liquid inlet end of the third guide member 23) in its own length direction and away from the confluence member 24. The second shielding part 232 is used to prevent the liquid in the third guide channel 231 from overflowing outward, and to ensure that all the liquid in the third guide channel 231 flows into the second guide channel 221.

[0068] like Figure 1 , 7As shown in Figure 9, in one embodiment of this application, the drainage base further includes a plurality of baffles 5, which are all located at the top of the base body 1. The plurality of baffles 5 are connected in sequence and arranged around the transformer placement area 11 to prevent liquid in the transformer placement area 11 from overflowing outward.

[0069] When a large amount of liquid accumulates on the base body 1 and cannot be discharged through the drain port 12 in time, the liquid will overflow along the side wall of the base body 1. This will not only contaminate the base body 1 but may also corrode the drainage base, shortening its service life and potentially causing environmental pollution. Several baffles 5 are installed to solve the above problems. By setting several baffles 5 around the transformer placement area 11, the accumulated liquid can be effectively contained within the transformer placement area 11, preventing liquid overflow and contamination of the base body 1. This extends the service life of the drainage base and reduces the risk of environmental pollution.

[0070] Preferably, the partition 5 is fixed to the top of the base body 1 by fasteners, including but not limited to bolts, screws, and pins. For example, when bolts are used as fasteners, the partition 5 has several through holes 51 along its thickness direction, and the top surface of the base body 1 has threaded holes corresponding to the several through holes 51. One end of the bolt passes through the through hole 51 of the partition 5 and is threadedly connected to the threaded hole of the base body 1, thereby fixing the partition 5 to the top of the base body 1.

[0071] like Figure 9 As shown, in one embodiment of the present invention, the partition 5 includes a first connecting plate 52 and a second connecting plate 53. The end face of the first connecting plate 52 is fixedly connected to the end face of the base body 1. One end of the second connecting plate 53 is connected to the first connecting plate 52, and the other end of the second connecting plate 53 extends away from the end face of the base body 1.

[0072] Optionally, the first connecting plate 52 and the second connecting plate 53 are arranged perpendicular to each other, in which case the partition 5 is in an "L" shape.

[0073] It should be noted that the structure of the partition 5 can be designed according to actual needs, for example, Figure 7 As shown, the partition 5 may further include a third connecting plate 54, which is bent and connected to the end of the second connecting plate 53 away from the first connecting plate 52. The partition 5 only needs to effectively block the accumulated liquid within the transformer placement area 11, and there are no restrictions on the structure of the partition 5.

[0074] like Figure 3As shown, in one embodiment of this application, the first guide member 21, the second guide member 22, the third guide member 23 and the confluence member 24 are all rectangular in shape.

[0075] The base body 1 typically adopts a rectangular structure. The first guide component 21, the second guide component 22, the third guide component 23, and the confluence component 24, which also adopt a rectangular structure, can be more easily and quickly aligned and installed with the base body 1. Moreover, the plane-to-plane contact provides a larger welding area, making their contact area with the base body 1 larger, thereby ensuring their long-term installation stability. It can also provide a larger fixing area for fasteners such as bolts and screws, thereby improving the connection strength between the first guide component 21, the second guide component 22, the third guide component 23, and the confluence component 24 and the base body 1.

[0076] like Figures 3 to 6 As shown, in one embodiment of this application, the third guide member 23 and the confluence member 24 are integrally formed structures;

[0077] A first pair of interfaces 213 is provided at the connection between the first guide member 21 and the second guide member 22. The liquid outlet end of the first guide channel 211 is connected to the liquid inlet end of the second guide channel 221 through the first pair of interfaces 213.

[0078] The one-piece molded structure has a second pair of interfaces 233, and the one-piece molded structure is connected to the liquid outlet end of the second guide channel 221 through the second pair of interfaces 233.

[0079] The third guide component 23 and the confluence component 24 are integrally formed. In this way, the third guide component 23 and the confluence component 24 form a whole, and there is no connection gap between the two. This allows the fluid to flow more smoothly, which not only avoids liquid leakage at the connection gap, but also enhances the overall structural strength and stability of the drainage base, but also reduces assembly steps and improves production efficiency.

[0080] like Figure 11 As shown, this utility model also proposes a box-type substation, including a transformer body 6 and any of the above-mentioned drainage bases.

[0081] By setting up a drainage base, the liquid on the drainage base corresponding to the transformer body 6 can be collected from the first guide channel 211, the second guide channel 221, and the third guide channel 231 into the confluence channel 241 and finally discharged from the drainage base. This can prevent liquid accumulation at the top of the drainage base and avoid rusting of the transformer body 6. It can further ensure the operational stability of this prefabricated substation and solve the problem that the existing transformer base is prone to liquid accumulation due to the indentation, which may even cause the transformer body to rust and reduce the overall operational stability of the prefabricated substation.

[0082] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A drainage base for use in prefabricated substations, characterized in that, include: The base body has a transformer placement area, and the base body has a drain outlet extending through its height in the transformer placement area; the drain outlet includes a first drain section, a second drain section, a third drain section and a confluence section, the two ends of the second drain section are respectively connected to the first drain section and the third drain section, one end of the confluence section is connected to the second drain section and the third drain section, and the other end of the confluence section extends toward the edge of the base body; A flow guiding assembly is disposed at the bottom end of the base body. The flow guiding assembly includes a first flow guiding member, a second flow guiding member, a third flow guiding member, and a confluence member. The first flow guiding member has a first flow guiding groove corresponding to the first drainage section, the second flow guiding member has a second flow guiding groove corresponding to the second drainage section, the third flow guiding member has a third flow guiding groove corresponding to the third drainage section, and the confluence member has a confluence member corresponding to the confluence section. The outlet end of the first flow guiding groove is inclined downward and connected to the inlet end of the second flow guiding groove. The outlet ends of the second flow guiding groove and the third flow guiding groove are respectively inclined downward and connected to the inlet end of the confluence member. The outlet end of the confluence member extends downward to the edge of the base body.

2. The drainage base according to claim 1, characterized in that, The flow guiding assembly also includes a flow guide tube, the inlet end of which is connected to the outlet end of the confluence channel, and the outlet end of which penetrates the side wall of the base body and extends to the outside of the base body.

3. The drainage base according to claim 2, characterized in that, The drainage base also includes a fluid control component, which is connected to the liquid outlet end of the drainage pipe to control the opening and closing of the drainage pipe.

4. The drainage base according to claim 1, characterized in that, The drainage base also includes a filter assembly located within the first drainage section, the second drainage section, the third drainage section, and the confluence section, for filtering the liquid flowing into the first drainage section, the second drainage section, the third drainage section, and the confluence section; The filtration assembly includes several first filter elements, and the first drain section, the second drain section, the third drain section and the confluence section are each provided with a first filter element.

5. The drainage base according to claim 4, characterized in that, Each of the first filter elements is provided with a plurality of first filter holes. The filter assembly also includes a plurality of second filter elements, each of the second filter elements is provided with a plurality of second filter holes. The second filter elements and the first filter elements are arranged in a one-to-one correspondence and abut against each other. The size of the second filter hole is smaller than the size of the first filter hole.

6. The drainage base according to claim 4, characterized in that, The first flow guide, the second flow guide, the third flow guide, and the confluence member each have two symmetrical bends at their ends along their depth direction and near the end of the first filter element. The first flow guide, the second flow guide, the third flow guide, and the confluence member each place the first filter element through the two bends.

7. The drainage base according to claim 1, characterized in that, The drainage base also includes several baffles, all of which are located at the top of the base body. The baffles are connected in sequence and arranged around the transformer placement area to prevent liquid in the transformer placement area from overflowing.

8. The drainage base according to claim 1, characterized in that, The first flow guide, the second flow guide, the third flow guide, and the confluence member are all rectangular in shape.

9. The drainage base according to claim 1, characterized in that, The third flow guide and the flow converging component are integrally formed structures; A first pair of interfaces is provided at the connection between the first guide member and the second guide member, and the liquid outlet end of the first guide channel is connected to the liquid inlet end of the second guide channel through the first pair of interfaces; The integrally molded structure has a second pair of interfaces, and the integrally molded structure is connected to the liquid outlet end of the second guide channel through the second pair of interfaces.

10. A prefabricated substation, characterized in that, It includes the transformer body and the drainage base as described in any one of claims 1 to 9.