A ventilation structure for a prefabricated substation and the prefabricated substation itself.

Abstract

This invention relates to a ventilation structure for a prefabricated substation and the prefabricated substation itself. The substation includes a housing with mounting slots on both sides. An air filter plate is installed within each mounting slot, and a cable guide is mounted on the air filter plate. Multiple communication channels are provided on the cable guide. Rainproof design: The top ventilation structure employs a "height difference between the drain cover and the ventilation platform" design, allowing rainwater to slide off along the outer periphery of the drain cover, preventing direct seepage. The air intake path at the bottom of the suction chamber is extended, reducing the risk of water backflow.

Description

Technical Field

[0001] This invention belongs to the field of substations, specifically a ventilation structure for a prefabricated substation and the prefabricated substation itself. Background Technology

[0002] As a core piece of outdoor power distribution equipment, prefabricated substations face the dual challenges of harsh environments and high-load operation. Outdoor environmental factors include rainwater, dust, and humid air easily entering the enclosure through ventilation openings, leading to aging of insulation components, corrosion of metal parts, and even short-circuit faults. Equipment heating characteristics are also a concern; transformers and high-voltage electrical components generate significant heat during operation. Insufficient heat dissipation can cause aging of insulating oil, decreased equipment efficiency, and in severe cases, fires. Existing ventilation structures often employ a simple combination of side louvers and a top fan, offering advantages such as simple manufacturing and low cost. However, these solutions suffer from weak dust and water resistance, uneven airflow distribution, and maintenance difficulties, failing to meet the demands for high reliability and long service life. Therefore, this paper proposes a ventilation structure and a prefabricated substation for prefabricated substations. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] Given the following technical problems in the existing technology: Conflict between heat dissipation efficiency and dust and water resistance: Traditional ventilation structures are prone to rainwater and dust intrusion due to open design, affecting equipment insulation and lifespan; if excessively sealed, heat dissipation is insufficient, causing equipment overheating failure; Uneven airflow distribution in chambers: In box-type substations, high-voltage chambers, low-voltage chambers, and transformer chambers (core heat-generating areas) are independently separated, and traditional ventilation cannot effectively enhance heat dissipation in transformer chambers, resulting in excessively high local temperatures; Contradiction between structural complexity and maintenance convenience: Existing ventilation systems mostly rely on a single filter or fan, and after long-term use, impurities accumulate, affecting efficiency, and disassembly and cleaning are difficult, increasing maintenance costs.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a ventilation structure for a prefabricated substation and a prefabricated substation, including a box body, with an installation groove on both sides of the box body, an air filter plate in the installation groove, a cable pass platform on the air filter plate, and multiple communication channels on the cable pass platform;

[0006] The enclosure contains a high-voltage chamber, a low-voltage chamber, and a transformer chamber. A transformer is located at the bottom of the transformer chamber. Ventilation holes are provided between the high-voltage chamber and the transformer chamber, and between the low-voltage chamber and the transformer chamber. A ventilation structure is provided on the top of the enclosure.

[0007] As a ventilation structure for prefabricated substations and a preferred technical solution for prefabricated substations, a motor is installed in the middle of the ventilation structure, and fan blades are installed at the power output end of the motor.

[0008] As a ventilation structure for prefabricated substations and a preferred technical solution for prefabricated substations, the ventilation structure includes a ventilation platform, a drain cover, a secondary air intake chamber, a second and a third tertiary air intake chamber, a first communication channel, and a second communication channel. A connecting groove is recessed in the inner top wall of the transformer chamber. A fourth air intake chamber, shaped like a frustum, is located in the middle of the ventilation platform. The bottom of the fourth air intake chamber connects to the connecting groove. A drain cover is installed at the top of the ventilation platform, with its height lower than the height of the ventilation platform. The top of the ventilation platform rests within the drain cover. A secondary air intake chamber is located at the top of the ventilation platform. The suction chamber and the second tertiary suction chamber are both annular grooves. The suction chamber is formed between the drain cover and the suction chamber. Several communication channels are provided between the second suction chamber and the suction chamber. The first communication channel is located at the top of the ventilation platform. Several communication channels are provided between the second tertiary suction chamber and the second suction chamber. The second communication channel is located in the middle of the second tertiary suction chamber. The second communication channel is staggered from the first communication channel. Several communication channels are provided at the top of the ventilation platform. The third communication channel connects the second tertiary suction chamber and the fourth suction chamber.

[0009] The inner wall of the secondary air intake chamber is evenly equipped with several filter plates, each corresponding to a communication channel. The filter plate covers the first communication channel, while the second communication channel is offset from the secondary air intake chamber. The airflow needs to make a partial circumferential flow around the inner cavity of the secondary air intake chamber.

[0010] As a preferred technical solution for ventilation structure and prefabricated substation for prefabricated substation, a conductive line 1 is provided on one side of the top of the transformer, and a conductive line 2 is provided on the other side of the top of the transformer. The conductive line 2 is connected to the current stabilizer. The conductive line 1 includes an output wire, which passes through the communication channel of the cable tray.

[0011] The output wire is connected to a household or industrial electrical circuit.

[0012] As a preferred technical solution for a ventilation structure and prefabricated substation, the high-voltage chamber is equipped with a wiring mechanism, which includes a wiring base plate, a terminal block, and a locking frame. Several copper plates are threaded onto the terminal block, and a terminal frame is sandwiched between the copper plates and the terminal block. The terminal frame is connected to the input wire. Several locking frames are provided on the wiring base plate, and the locking frames are connected to the inner wall of the high-voltage chamber by bolts. The current stabilizer is connected to the terminal block by a wire.

[0013] At the bottom of the secondary air suction chamber and the second tertiary air suction chamber, there is also a water-absorbing agent, which includes calcium chloride, super absorbent resin, and absorbs the water that is thrown out.

[0014] The current stabilizer is model SBW-100KVA; the transformer is model SCB10-500 / 10.

[0015] The present invention provides a ventilation structure for a prefabricated substation and the beneficial effects of the prefabricated substation: rainproof design: the top ventilation structure adopts a "height difference between the drainage cover and the ventilation platform" design, so that rainwater slides down along the outer periphery of the drainage cover and avoids direct infiltration; the air intake path at the bottom of the air intake cavity is extended to reduce the risk of water backflow.

[0016] Multi-stage filtration: The secondary air intake chamber has a built-in filter plate, and the tertiary air intake chamber uses a staggered communication channel to form centrifugal force to filter impurities. Combined with the bottom absorbent, it achieves three-stage purification from airflow to impurity separation to drying, ensuring that the air entering the chamber is clean and dry.

[0017] Directional Enhanced Heat Dissipation in Transformer Chamber: The top ventilation structure is centered around four suction chambers. The motor-driven fan blades create negative pressure within the frustum-shaped chamber, drawing air from the high-voltage and low-voltage chambers into the transformer chamber through ventilation holes. The air is then discharged through multiple suction chambers, forming a directional path where "airflow from multiple chambers converges to the transformer chamber for centralized heat dissipation," significantly reducing the transformer's operating temperature.

[0018] Modular structure and improved maintenance convenience: The drain cover and ventilation duct are connected and can be quickly disassembled to expose the secondary and tertiary air intake chambers, making it easy to clean impurities and replace the absorbent; the air filter plate and cable tray are integrated into the design, taking into account both ventilation and cable storage, reducing structural redundancy.

[0019] Enhanced electrical safety: The high-voltage chamber wiring mechanism adopts a combination of "metal copper plate, wiring frame, and locking frame", which is fixed by bolts to achieve stable wire connection, and works with current stabilizer to ensure voltage conversion stability; the conductive wires are routed in an orderly manner through the wiring platform to avoid the risk of short circuit caused by messy wiring. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a top view of the ventilation duct of the present invention.

[0023] Figure 3 This is a three-dimensional structural diagram of the drainage cover of the present invention;

[0024] Figure 4 This is a circuit diagram of the circuit containing the motor of the present invention.

[0025] Attached reference numerals: Box body—1, High-voltage chamber—2, Low-voltage chamber—3, Transformer chamber—4, Transformer—5, Ventilation hole—6, Current stabilizer—7, Terminal block—8, Terminal board—9, Locking bracket—10, Terminal frame—11, Copper plate—12, Conductive wire two—13, Air filter plate—14, Ventilation platform—15, Cable guide platform—16, Conductive wire one—17, Drain cover—18, Suction chamber—19, Secondary suction chamber—20, Tertiary suction chamber two—21, Motor—22, Quaternary suction chamber—23, Communication channel one—24, Communication channel two—25, Communication channel three—26, Filter screen plate—27. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0030] like Figures 1-4 As shown, the present invention proposes a ventilation structure for a prefabricated substation and a prefabricated substation, including a box body 1, with an installation groove on both sides of the box body 1, an air filter plate 14 installed in the installation groove, a cable pass platform 16 installed on the air filter plate 14, and multiple communication channels installed on the cable pass platform 16.

[0031] The enclosure 1 is provided with a high-voltage chamber 2, a low-voltage chamber 3 and a transformer chamber 4. A transformer 5 is provided at the bottom of the transformer chamber 4. Ventilation holes 6 are provided between the high-voltage chamber 2 and the transformer chamber 4, and between the low-voltage chamber 3 and the transformer chamber 4. A ventilation structure is provided at the top of the enclosure 1.

[0032] A motor 22 is installed in the middle of the ventilation structure, and fan blades are installed at the power output end of the motor 22.

[0033] The ventilation structure includes a ventilation platform 15, a drain cover 18, a secondary air intake chamber 20, a tertiary air intake chamber 21, a quaternary air intake chamber 23, a first communication channel 24, and a second communication channel 25. A connecting groove is recessed in the inner top wall of the transformer chamber 4. A quaternary air intake chamber 23, which is frustum-shaped, is located in the middle of the ventilation platform 15. The bottom end of the quaternary air intake chamber 23 connects to the connecting groove. A drain cover 18 is located at the top of the ventilation platform 15, with the height of the drain cover 18 lower than the height of the ventilation platform 15. The top of the ventilation platform 15 is placed inside the drain cover 18. The top of the ventilation platform 15 has a secondary air intake chamber 20 and a tertiary air intake chamber 21. Both the secondary suction chamber 20 and the third suction chamber 21 are annular grooves. The suction chamber 19 is formed between the drain cover 18 and the suction chamber 19. Several communication channels 1 24 are provided between the secondary suction chamber 20 and the suction chamber 19. The communication channels 1 24 are located at the top of the ventilation platform 15. Several communication channels 25 are provided between the third suction chamber 21 and the secondary suction chamber 20. The communication channels 25 are located in the middle of the third suction chamber 21. The communication channels 25 are staggered from the communication channels 1 24. Several communication channels 3 26 are provided at the top of the ventilation platform 15. The communication channels 3 26 connect the third suction chamber 21 and the fourth suction chamber 23.

[0034] The inner wall of the secondary air intake chamber 20 is evenly provided with several filter plates 27, which correspond one-to-one with the first communication channel 24. The filter plates 27 cover the first communication channel 24, and the second communication channel 25 is staggered from the secondary air intake chamber 20. The airflow needs to make a partial circumferential flow around the inner cavity of the secondary air intake chamber 20.

[0035] A conductive wire 17 is provided on one side of the top of the transformer 5, and a conductive wire 13 is provided on the other side of the top of the transformer 5. The conductive wire 13 is connected to the current stabilizer 7. The conductive wire 17 includes an output wire, which passes through the communication channel of the cable tray 16.

[0036] The output wire is connected to a household or industrial electrical circuit.

[0037] The high-voltage chamber 2 is equipped with a wiring mechanism, which includes a wiring base plate 8, a wiring board 9, and a locking frame 10. Several metal copper plates 12 are threaded onto the wiring board 9, and a wiring frame 11 is sandwiched between the metal copper plates 12 and the wiring board 9. The wiring frame 11 is connected to the input wire. Several locking frames 10 are provided on the wiring base plate 8. The locking frames 10 are connected to the inner wall of the high-voltage chamber 2 by bolts. The current stabilizer 7 is connected to the wiring board 9 by a wire.

[0038] The power output end of the motor 22 extends into the fourth suction chamber 23 and is connected to the fan blades through a coupling.

[0039] The symbol M stands for motor.

[0040] The specific implementation method is as follows: the high voltage electricity is connected to the transformer 5 through the input wire, terminal frame 11, metal copper plate 12, terminal board 9 and conductive wire 2 13 to reduce the voltage of the high voltage electricity, and the current after the voltage reduction is output through conductive wire 17.

[0041] Motor 22 controls the fan blades to rotate, creating negative pressure at the top of the fourth suction chamber 23 and above the fan blades. When rainwater falls on the upper and outer sides of the drain cover 18, which is frustum-shaped, the rainwater slides off its outer circumference. Meanwhile, air enters from the bottom of the suction chamber 19, forming an airflow. The airflow in the suction chamber 19 enters from the top of the secondary suction chamber 20, greatly reducing the possibility of water entering the housing 1. The middle of the second tertiary suction chamber 21 draws in gas from the interior of the secondary suction chamber 20. The inner cavities of the secondary suction chamber 20 and the suction chamber 19 already contain a large amount of air, making it difficult for the gas at the bottom of the secondary suction chamber 20 to flow. The second communication channel 25 is also offset from the secondary suction chamber 20, requiring the airflow to partially circumferentially flow around the inner cavity of the secondary suction chamber 20. The movement generates centrifugal force to further filter the air, leaving some impurities, including water vapor, behind. As the cavity of the suction chamber 19 expands, the airflow is obstructed, slowing down the airflow velocity and reducing the number of impurities reaching the top of the suction chamber 19. The communication channels 25 and 26 in the third suction chamber 21 form a second filtration. In addition, the drain cover 18 is movably installed with the ventilation platform 15 and can be periodically separated from the ventilation platform 15 to expose the third suction chamber 21 and the second suction chamber 20 to remove impurities. The airflow enters the transformer chamber 4 through the fourth suction chamber 23, passes over the surface of the transformer 5, carries away heat, and cools the transformer 5. The airflow enters the high-voltage chamber 2 and the low-voltage chamber 3 through the ventilation hole 6, and is then discharged through the air filter plate 14.

[0042] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A ventilation structure for a prefabricated substation and the prefabricated substation, characterized in that: Includes a housing (1), with an installation slot on each side of the housing (1), an air filter plate (14) is installed in the installation slot, a cable pass platform (16) is installed on the air filter plate (14), and multiple communication channels are installed on the cable pass platform (16). The enclosure (1) is provided with a high-voltage chamber (2), a low-voltage chamber (3) and a transformer chamber (4). A transformer (5) is provided at the bottom of the transformer chamber (4). Ventilation holes (6) are provided between the high-voltage chamber (2) and the transformer chamber (4) and between the low-voltage chamber (3) and the transformer chamber (4). A ventilation structure is provided at the top of the enclosure (1).

2. The ventilation structure for a box-type substation and the box-type substation according to claim 1, characterized in that: A motor (22) is installed in the middle of the ventilation structure, and a fan blade is installed at the power output end of the motor (22).

3. The ventilation structure for a box-type substation and the box-type substation according to claim 2, characterized in that: The ventilation structure includes a ventilation platform (15), a drain cover (18), a secondary air intake chamber (20), a tertiary air intake chamber (21), a quaternary air intake chamber (23), a communication channel (24), and a communication channel (25). A connecting groove is recessed in the inner top wall of the transformer chamber (4). A quaternary air intake chamber (23) is located in the middle of the ventilation platform (15). The quaternary air intake chamber (23) is frustum-shaped, and its bottom end is connected to the connecting groove. A drain cover (18) is located at the top of the ventilation platform (15). The height of the drain cover (18) is lower than the height of the ventilation platform (15). The top of the ventilation platform (15) is placed inside the drain cover (18). A secondary air intake chamber (20) and a tertiary air intake chamber (21) are located at the top of the ventilation platform (15). Both the secondary suction chamber (20) and the third suction chamber (21) are annular grooves. The suction chamber (19) is formed between the drain cover (18) and the suction chamber (19). Several communication channels (24) are provided between the secondary suction chamber (20) and the suction chamber (19). The communication channels (24) are located at the top of the ventilation platform (15). Several communication channels (25) are provided between the third suction chamber (21) and the secondary suction chamber (20). The communication channels (25) are located in the middle of the third suction chamber (21). The communication channels (25) are staggered from the communication channels (24). Several communication channels (26) are provided at the top of the ventilation platform (15). The communication channels (26) connect the third suction chamber (21) and the fourth suction chamber (23).

4. The ventilation structure for a box-type substation and the box-type substation according to claim 3, characterized in that: A conductive wire 1 (17) is provided on one side of the top of the transformer (5), and a conductive wire 2 (13) is provided on the other side of the top of the transformer (5). The conductive wire 2 (13) is connected to the current stabilizer (7). The conductive wire 1 (17) includes an output wire, which passes through the communication channel of the cable tray (16).

5. The ventilation structure for a box-type substation and the box-type substation according to claim 4, characterized in that: The high-pressure chamber (2) is equipped with a wiring mechanism, which includes a wiring base plate (8), a wiring board (9) and a locking frame (10). Several metal copper plates (12) are threaded onto the wiring board (9). A wiring frame (11) is sandwiched between the metal copper plates (12) and the wiring board (9). The wiring frame (11) is connected to the input wire. Several locking frames (10) are provided on the wiring base plate (8). The locking frames (10) are connected to the inner wall of the high-pressure chamber (2) by bolts. The current stabilizer (7) is connected to the wiring board (9) by a wire.

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