Double-layer prefabricated substation

Abstract

The utility model discloses a double-layer prefabricated substation, which comprises a substation box body, and a high-voltage chamber, a transformation chamber, a first low-voltage chamber and a second low-voltage chamber are arranged in the substation box body. Wherein the transformation chamber and the first low-voltage chamber are oppositely arranged, and the high-voltage chamber is arranged below the transformation chamber. The design of the double-layer structure enables connection among the high-voltage chamber, the transformation chamber and the low-voltage chamber to be more direct and compact, and efficient integration of functional areas and maximum utilization of space are achieved. The sinking box is arranged on one side of the high-voltage chamber, and the first cable fixing frame used for fixing the high-voltage incoming cable is arranged in the sinking box, so that the cable arrangement is orderly and stable, the space utilization is optimized in details, and the overall layout is more compact and reasonable. A fixing support is arranged in the transformer substation box body, a second cable fixing frame is arranged on the fixing support, a high-voltage outlet cable penetrates through the second cable fixing frame to be connected with a transformer of a transformation chamber, and the connection process of the cable and equipment is further simplified.

Description

Technical Field

[0001] The utility model relates to, but is not limited to, the technical field of box-type substations, and particularly relates to a double-layer prefabricated substation. Background Art

[0002] As an important power equipment, substations are numerous and widely distributed, playing a crucial role in energy supply. These substations integrate transformers and multiple precision cabinets inside. The traditional layout often arranges them in a flat-expanded manner in a designated area, which inevitably leads to a significant increase in the floor area of the substation.

[0003] However, with the acceleration of the urbanization process, land resources have increasingly become scarce resources. Against this background, the disadvantages of large floor area and low land use efficiency of traditional substations have gradually emerged, making it difficult to meet the urgent needs of modern urban construction for efficient and intensive development. Summary of the Invention

[0004] In view of the above problems, the utility model proposes a double-layer prefabricated substation, which realizes a significant reduction in the floor area of the substation and a substantial improvement in land use efficiency through the design of a double-layer compact layout structure.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] The utility model proposes a double-layer prefabricated substation, including:

[0007] A substation box body, in which a high-voltage chamber, a transformer chamber, a first low-voltage chamber and a second low-voltage chamber are provided. The transformer chamber and the first low-voltage chamber are arranged opposite to each other, and the high-voltage chamber is located below the transformer chamber; on one side of the high-voltage chamber, there is a sunken box, in which a first cable fixing rack is provided for fixing the high-voltage incoming cable; in the substation box body, there is a fixing bracket, and the fixing bracket is provided with a second cable fixing rack. The high-voltage outgoing cable passes through the second cable fixing rack and is connected to the transformer in the transformer chamber.

[0008] Further, a ventilation opening is provided on the side of the transformer chamber; first ventilation devices are provided on the side walls of the first low-voltage chamber and the second low-voltage chamber, and a second ventilation device is provided on the top of the first low-voltage chamber.

[0009] Further, the first low-voltage chamber is provided with a low-voltage incoming cabinet, a first busbar connection port is provided on the side wall of the transformer chamber, and the outgoing cable of the transformer passes through the first busbar connection port and is connected to the low-voltage incoming cabinet.

[0010] Further, a cable inlet hole is provided on one side of the high-voltage chamber, and the sunken box is embedded in the cable inlet hole; the high-voltage chamber is provided with a high-voltage incoming line cabinet, the high-voltage incoming line cabinet is provided with high-voltage incoming line terminals, and the high-voltage incoming line cable passes through the sunken box and is connected to the high-voltage incoming line terminals.

[0011] Further, the high-voltage chamber is provided with a high-voltage outgoing line cabinet, the high-voltage outgoing line cabinet is provided with high-voltage outgoing line terminals, a cable connection port is provided on the fixed bracket, and the position of the high-voltage outgoing line terminals corresponds to the position of the cable connection port.

[0012] Further, an insulating plate is provided on one side of the high-voltage outgoing line cabinet, the insulating plate is provided with a cable hole, one end of the high-voltage outgoing line cable is connected to the high-voltage outgoing line terminals, and the other end sequentially passes through the cable hole and the cable connection port and is fixed to the second cable fixing bracket.

[0013] Further, a rubber ring is provided in the cable hole, and the rubber ring is used to prevent the vibration friction between the high-voltage incoming line cable and the insulating plate.

[0014] Further, a second busbar connection port is provided on the side wall of the first low-voltage chamber, the second low-voltage chamber is provided with a low-voltage outgoing line cabinet, and the outgoing line cable of the low-voltage outgoing line cabinet passes through the second busbar connection port and is connected to the low-voltage outgoing line cabinet.

[0015] Further, the first low-voltage chamber is provided with a compensation capacitor cabinet, and the compensation capacitor cabinet is located on one side of the low-voltage incoming line cabinet.

[0016] Further, the high-voltage chamber is provided with a high-voltage metering cabinet, and the high-voltage metering cabinet is arranged at the middle position between the high-voltage incoming line cabinet and the high-voltage outgoing line cabinet.

[0017] The beneficial effects of the present utility model include:

[0018] 1. By adopting a double-layer structure design, the high-voltage chamber, the transformer chamber, the first low-voltage chamber and the second low-voltage chamber are reasonably arranged in the substation box body. In particular, the transformer chamber and the first low-voltage chamber are arranged opposite to each other, and the high-voltage incoming line cable is fixed by using the sunken box, which not only ensures the reasonable division and efficient connection of each functional area, but also realizes the maximization of space utilization. This compact layout mode effectively reduces the overall floor area of the substation and improves the land use efficiency.

[0019] 2. Improve the convenience of operation and maintenance: The double-layer structure design makes the connection between the high-voltage chamber, the transformer chamber and the low-voltage chamber more direct and compact, reduces the laying length of cables and pipelines, and reduces the operation and maintenance difficulty. At the same time, the design of the sunken box and the fixed bracket is convenient for the fixing and management of cables, improving the work efficiency and safety of operation and maintenance personnel. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is the overall side view structure diagram of the double-layer prefabricated substation provided by the present invention;

[0022] Figure 2 is the side view of the high-voltage incoming line cabinet provided by the present invention;

[0023] Figure 3 is the side view of the internal frame provided by the present invention;

[0024] Figure 4 is the top view of the fixed bracket provided by the present invention;

[0025] Figure 5 is the front view structure diagram of the double-layer prefabricated substation provided by the present invention;

[0026] Figure 6 is the top view structure diagram of the double-layer prefabricated substation provided by the present invention;

[0027] Figure 7 is another overall side view structure diagram provided by the present invention;

[0028] Reference numerals: substation box body 100; high-voltage chamber 110; transformer chamber 120; first low-voltage chamber 130; second low-voltage chamber 140; high-voltage incoming line cabinet 111, high-voltage metering cabinet 112; high-voltage outgoing line cabinet 113; transformer 121; low-voltage incoming line cabinet 131; low-voltage outgoing line cabinet 141; sunken box 210; first cable fixing bracket 220; high-voltage incoming terminal 230; fixed bracket 310; second cable fixing bracket 320; first busbar connection port 330; cable connection port 410; second busbar connection port 420; insulating board 510; cable hole 520; low-voltage busbar 610; air inlet 10; air outlet 20; ventilation device 710; air inlet device 720; second ventilation device 730; partition board 740. Detailed implementation manners

[0029] The embodiments described in the present invention are for more clearly illustrating the technical solutions of the present invention and do not constitute a limitation to the technical solutions provided by the present invention. Those skilled in the art know that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the present invention are equally applicable to similar technical problems.

[0030] In addition, the terms "comprising", "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0031] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating directions or positional relationships are based on the orientations or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated devices or elements must have specific orientations, be constructed and operated in specific orientations. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements or components must have specific orientations, or be constructed and operated in specific orientations. Moreover, in addition to being able to represent orientations or positional relationships, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases.

[0033] For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0034] For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0035] Unless otherwise specified, the term "plurality" means two or more.

[0036] In the embodiments of the present disclosure, the term "and / or" is a description of the associated relationship of an object, indicating that three relationships can exist. For example, A and / or B means: A or B, or, the three relationships of A and B.

[0037] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0038] The traditional layout of a substation often adopts a flat expansion method and is placed in a designated area. This layout mode inevitably leads to a significant increase in the floor area of the substation. However, with the acceleration of the urbanization process, land resources have increasingly become scarce resources. Against this background, the disadvantages of the large floor area and low land use efficiency of traditional substations have gradually become prominent, and it is difficult to meet the urgent needs of modern urban construction for efficient and intensive development.

[0039] In view of the above problems, the present utility model provides a double-layer prefabricated substation, which includes a substation box body. Inside the substation box body, there are a high-voltage chamber, a transformer chamber, a first low-voltage chamber, and a second low-voltage chamber. Among them, the transformer chamber and the first low-voltage chamber are arranged opposite to each other, while the high-voltage chamber is arranged below the transformer chamber. This double-layer structure design makes the connection between the high-voltage chamber, the transformer chamber, and the low-voltage chamber more direct and compact, achieving efficient integration of functional areas and maximizing the utilization of space. On one side of the high-voltage chamber, there is a sunken box, and inside the sunken box, there is a first cable fixing rack for fixing the high-voltage incoming cable, which not only ensures the orderly and stable cable routing but also optimizes the space utilization in detail, making the overall layout more compact and reasonable. Inside the substation box body, there is a fixing bracket, and on the fixing bracket, there is a second cable fixing rack. The high-voltage outgoing cable passes through the second cable fixing rack and is connected to the transformer in the transformer chamber, further simplifying the connection process between the cable and the equipment and improving the operating efficiency of the overall system. Through the combined application of the sunken box and the fixing bracket, the laying distance of the cable and the pipeline is effectively shortened, the cable fixing and management process is greatly simplified, a safer and more convenient working environment is provided for the operation and maintenance personnel, and the operation and maintenance efficiency and operation safety are significantly improved. In summary, the double-layer prefabricated substation of the present utility model, with its compact and efficient layout design, optimized space utilization, and convenient operation and maintenance management characteristics, effectively solves the problems of large floor area and low land use efficiency of traditional substations.

[0040] The present utility model will be specifically described through the following embodiments.

[0041] See Figure 1 , Figure 1 which is the overall side view structure diagram of the double-layer prefabricated substation provided by the present utility model. As Figure 1 shown, the double-layer prefabricated substation includes a substation box body 100. The interior of the substation box body 100 is divided into a high-voltage chamber 110, a transformer chamber 120, a first low-voltage chamber 130, and a second low-voltage chamber 140. Among them, the transformer chamber 120 and the first low-voltage chamber 130 are arranged opposite to each other, while the high-voltage chamber 110 is placed below the transformer chamber 120. In other words, the transformer chamber 120 and the first low-voltage chamber 130 are arranged on the upper layer inside the box body, and the high-voltage chamber 110 and the second low-voltage chamber 140 are arranged on the lower layer. The high-voltage chamber 110 is located below the transformer chamber 120, thus realizing the reasonable utilization of vertical space.

[0042] In a feasible embodiment, a high-voltage incoming line cabinet 111, a high-voltage metering cabinet 112, and a high-voltage outgoing line cabinet 113 are arranged inside the high-voltage chamber 110. The high-voltage metering cabinet 112 is arranged at the middle position between the high-voltage incoming line cabinet 111 and the high-voltage outgoing line cabinet 113; a transformer 121 is arranged inside the transformer chamber 120; a low-voltage incoming line cabinet 131 and a compensation capacitor cabinet are arranged inside the first low-voltage chamber 130; a low-voltage outgoing line cabinet 141 and a low-voltage auxiliary cabinet are arranged inside the second low-voltage chamber 140. The external power supply enters the high-voltage chamber 110 from the high-voltage cable inlet hole and is connected to the high-voltage incoming line cabinet 111, and then is respectively connected to the high-voltage terminal of the transformer 121 through the high-voltage metering cabinet 112 and the high-voltage outgoing line cabinet 113. After being processed by the transformer 121, the external power supply can be converted into low-voltage electric energy. The low-voltage incoming line cabinet 131 receives the low-voltage electric energy from the transformer 121 and introduces it into the room. At the same time, the setting of the compensation capacitor cabinet effectively improves the power factor of the power system, reduces the transmission of reactive power, and thus improves the efficiency and quality of electric energy transmission. The low-voltage outgoing line cabinet 141 can distribute the processed low-voltage electric energy to each electrical equipment or power grid to meet the power demand of end users. The low-voltage auxiliary cabinet integrates various auxiliary equipment and control systems, such as protection relays, monitoring devices, etc., to monitor the operating state of the power system in real time and ensure the safety, reliability, and efficiency of power supply.

[0043] In a feasible embodiment, as Figure 2 shown, a sunken box 210 is provided on one side of the high-voltage chamber 110. A first cable fixing rack 220 for fixing the high-voltage incoming line cable is arranged inside the sunken box 210, aiming to ensure the stability and safety of cable connection. Specifically, a cable inlet hole is provided on one side of the high-voltage chamber 110. The sunken box 210 can be embedded into the cable inlet hole and is located at the bottom of the high-voltage incoming line cabinet 111, so as to increase the ground height of the high-voltage incoming line terminal 230 of the high-voltage incoming line cabinet 111. When the high-voltage incoming line cable needs to be connected to the high-voltage incoming line cabinet 111, it can pass through the internal space of the sunken box 210, then be fixed on the first cable fixing rack 220, and then be firmly connected to the high-voltage incoming line terminal 230 of the high-voltage incoming line cabinet 111. This process not only simplifies the cable laying and fixing process, but also significantly improves the reliability of cable connection and the convenience of maintenance.

[0044] In a feasible embodiment, as Figure 3As shown, a fixed bracket 310 is provided inside the substation box body 100 for supporting the equipment on the upper layer of the substation box body 100 (such as the transformer 121, the low-voltage incoming line cabinet 131, and the compensation capacitor cabinet). A second cable fixing bracket 320 is provided on the fixed bracket 310, and the high-voltage outgoing cable can pass through the second cable fixing bracket 320 and be connected to the transformer 121 in the transformer chamber 120. Specifically, before connecting the high-voltage outgoing cable to the transformer 121, the high-voltage outgoing cable can be fixed on the second cable fixing bracket 320 first, so that the stress of the high-voltage incoming cable is concentrated here, thereby reducing the stress on the connection between the cable and the high-voltage terminal of the transformer 121.

[0045] In a feasible embodiment, as Figure 4 shown, a cable connection port 410 is also provided on the fixed bracket 310, and the position of the cable connection port 410 corresponds to the position of the high-voltage outgoing terminal of the high-voltage outgoing cabinet 113. Further, as Figure 5 shown, an insulating plate 510 for covering the cable connection port 410 is provided on one side of the high-voltage outgoing cabinet 113, which plays an important role in protecting the cable connection area and preventing electrical leakage. A cable hole 520 is provided on the insulating plate 510. When connecting the high-voltage outgoing cable to the transformer 121, one end of the high-voltage outgoing cable is tightly connected to the high-voltage outgoing terminal of the high-voltage outgoing cabinet 113, and the other end passes through the cable hole 520 on the insulating plate 510, and then further passes through the cable connection port 410, and finally is firmly fixed on the second cable fixing bracket 320. This operation process not only ensures the firm and reliable connection of the cable, but also greatly improves the standardization and safety of the cable management inside the substation. Finally, the high-voltage outgoing cable is connected to the transformer 121, completing the transmission and conversion of electric energy.

[0046] In a feasible embodiment, the outgoing mode of the high-voltage outgoing cabinet 113 is rear outgoing, which can make the high-voltage outgoing cable connected to the transformer 121 shorter and more convenient. In addition, it can also make the high-voltage cabinets (the high-voltage incoming line cabinet 111, the high-voltage metering cabinet 112, and the high-voltage outgoing cabinet 113) as short as possible in height under the premise of meeting the installation requirements, thereby reducing the overall height of the compact double-layer prefabricated substation.

[0047] In a feasible embodiment, rubber rings (such as tower-shaped rubber rings) are provided in the cable hole 520. These rubber rings can not only effectively prevent the friction between the high-voltage incoming cable and the insulating plate 510 caused by vibration, thereby protecting the external insulation layer of the cable from damage and ensuring its long-term stable operation; at the same time, they also have a sealing function, further enhancing the sealing performance of the cable hole 520.

[0048] In a feasible embodiment, as Figure 3 and Figure 6As shown, the side wall of the transformer chamber 120 is provided with a first busbar connection port 330, and the outgoing cable of the transformer 121 passes through the first busbar connection port to be connected to the low-voltage incoming cabinet 131. Specifically, a low-voltage busbar 610 is arranged on the first busbar connection port, and the outgoing cable of the transformer 121 is connected to the low-voltage incoming cabinet 131 through the low-voltage busbar 610.

[0049] In a feasible embodiment, as Figure 4 shown, the side wall of the first low-voltage chamber 130 is provided with a second busbar connection port 420, and the outgoing cable of the low-voltage incoming cabinet 131 passes through the second busbar connection port 420 to be connected to the low-voltage outgoing cabinet 141. Specifically, the second busbar connection port 420 is arranged at the bottom of the first low-voltage chamber 130 and corresponds to the position of the low-voltage incoming cabinet 131, facilitating the busbar connection between the first low-voltage chamber 130 and the second low-voltage chamber 140.

[0050] In a feasible embodiment, as Figure 7 shown, the second busbar connection port 420 can be arranged on a partition board 740 between a low-voltage chamber and the lower layer, and the partition board 740 is a non-sealing partition board.

[0051] In a feasible embodiment, the transformer chamber 120 incorporates a ventilation system to ensure an ideal state of indoor temperature and air quality. As Figure 1 shown, ventilation openings are provided on the side of the transformer chamber 120. Among them, the ventilation openings include an air inlet 10 arranged on the side wall of the transformer chamber and an air outlet 20 (which can be internally provided with a fan) arranged on the top of the transformer chamber. The two work together to form a ventilation duct for the transformer chamber, effectively promoting the dissipation of heat and the circulation of fresh air.

[0052] In a feasible embodiment, the side walls of the first low-pressure chamber 130 and the second low-pressure chamber 140 are provided with a first ventilation device, and the top of the first low-pressure chamber 130 is provided with a second ventilation device 730 to further optimize the indoor environment. Specifically, the first ventilation device includes a ventilation device 710 provided on the side wall of the first low-pressure chamber 130 and an air inlet device 720 provided on the side wall of the second low-pressure chamber 140. Among them, the ventilation device 710 is responsible for the exhaust function, while the air inlet device 720 is responsible for introducing fresh air. The ingenious combination of the two not only constitutes an efficient ventilation channel between the high-pressure chamber 110, the first low-pressure chamber 130 and the second low-pressure chamber 140, but also realizes a good circulation of indoor air. Further, a second ventilation device 730 is added to the top of the first low-pressure chamber 130. As another important node of the entire ventilation system, this device mainly undertakes the exhaust task and works together with the ventilation device 710 and the air inlet device 720 below to jointly build a comprehensive and efficient ventilation network. In this system, the ventilation device 710 and the air inlet device 720 cooperate to intake air, while the second ventilation device 730 focuses on exhausting air. The three perform their respective functions to ensure the continuous freshness and proper temperature of the air inside the high-pressure chamber 110, the first low-pressure chamber 130 and the second low-pressure chamber 140.

[0053] In a feasible embodiment, both the ventilation device 710 and the air inlet device 720 can be designed as louver structures. Specifically, when the ventilation device 710 undertakes the exhaust function, a fan can be integrated inside it on the back of the louver to enhance the exhaust efficiency. The second ventilation device 730 is directly composed of an air outlet and an efficient fan built in the air outlet.

[0054] The above is a specific description of the preferred embodiment of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A double-layer prefabricated substation, characterized in that: include: A substation box, wherein a high-voltage chamber, a transformer chamber, a first low-voltage chamber and a second low-voltage chamber are arranged in the substation box, the transformer chamber and the first low-voltage chamber are arranged opposite to each other, and the high-voltage chamber is located below the transformer chamber; a sinking box is provided on one side of the high-voltage chamber, and a first cable fixing frame is provided in the sinking box, and the first cable fixing frame is used to fix the high-voltage incoming cable; a fixing bracket is provided in the substation box, and the fixing bracket is provided with a second cable fixing frame, and the high-voltage outgoing cable is passed through the second cable fixing frame and connected to the transformer in the transformer chamber.

2. A double-layer prefabricated substation according to claim 1, characterized in that: A vent is provided on the side of the transformer chamber; a first ventilation device is provided on the side walls of the first low-pressure chamber and the second low-pressure chamber, and a second ventilation device is provided on the top of the first low-pressure chamber.

3. A double-layer prefabricated substation according to claim 1, characterized in that: The first low-voltage room is provided with a low-voltage incoming line cabinet, and the side wall of the transformer room is provided with a first busbar connection port. The outgoing cable of the transformer is passed through the first busbar connection port and connected with the low-voltage incoming line cabinet.

4. A double-layer prefabricated substation according to claim 1, characterized in that: A cable entry hole is provided on one side of the high-voltage chamber, and the sinking box is embedded in the cable entry hole; the high-voltage chamber is provided with a high-voltage incoming line cabinet, and the high-voltage incoming line cabinet is provided with a high-voltage incoming line terminal, and the high-voltage incoming line cable is passed through the sinking box and connected to the high-voltage incoming line terminal.

5. A double-layer prefabricated substation according to claim 4, characterized in that: The high-voltage chamber is provided with a high-voltage outlet cabinet, the high-voltage outlet cabinet is provided with a high-voltage outlet terminal, and the fixed bracket is provided with a cable connection port, and the position of the high-voltage outlet terminal corresponds to the position of the cable connection port.

6. A double-layer prefabricated substation according to claim 5, characterized in that: An insulating plate is provided on one side of the high-voltage outlet cabinet, and the insulating plate is provided with a cable hole. One end of the high-voltage outlet cable is connected to the high-voltage outlet terminal, and the other end is successively passed through the cable hole and the cable connection port, and fixed to the second cable fixing frame.

7. A double-layer prefabricated substation according to claim 6, characterized in that: The cable hole is provided with a rubber ring, and the rubber ring is used to prevent vibration and friction between the high-voltage incoming cable and the insulating plate.

8. A double-layer prefabricated substation according to claim 1, characterized in that: A second busbar connection port is provided on the side wall of the first low-voltage chamber, and a low-voltage outlet cabinet is provided in the second low-voltage chamber. The outlet cable of the low-voltage outlet cabinet is passed through the second busbar connection port and connected to the low-voltage outlet cabinet.

9. A double-layer prefabricated substation according to claim 3, characterized in that: The first low-voltage chamber is provided with a compensation capacitor cabinet, and the compensation capacitor cabinet is located on one side of the low-voltage incoming line cabinet.

10. A double-layer prefabricated substation according to claim 5, characterized in that: The high-voltage chamber is provided with a high-voltage metering cabinet, and the high-voltage metering cabinet is arranged in the middle position between the high-voltage incoming line cabinet and the high-voltage outgoing line cabinet.

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