Cooling structure for prefabricated substations

Abstract

This utility model discloses a cooling structure for a prefabricated substation, including a transformer box with a transformer installed inside. The transformer box has a hinged door on its front. This cooling structure for prefabricated substations enables active circulating cooling. By transporting the cooling medium from the cold storage tank to the heat dissipation coil, the medium absorbs heat from the transformer and returns to the cold storage tank, thus continuously and stably removing heat. This is suitable for high-temperature or high-load conditions. Furthermore, by using heat-conducting columns and a bottom heat exchange box, the lower underground temperature allows heat from the cold storage tank to be conducted underground for dissipation, reducing temperature fluctuations of the cooling medium and further reducing energy consumption. The cooperation between the cold storage tank and the bottom heat exchange box ensures smooth flow of the internal cooling medium, guaranteeing optimal performance. The heat dissipation plates, fins, and fan work together to agitate airflow and improve the transformer's heat dissipation efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of cooling structure for prefabricated substations, specifically concerning cooling structures for prefabricated substations. Background Technology

[0002] A prefabricated substation is a compact power distribution device that combines high-voltage switchgear, transformers, and low-voltage switchgear. Prefabricated substations can receive, transform, and distribute electrical energy, effectively shorten the power supply radius, improve power supply reliability, reduce civil engineering work, lower investment costs, and facilitate maintenance and management. It is one of the important pieces of equipment in modern power distribution systems.

[0003] A search revealed that Chinese Patent CN221150710U discloses a cooling structure for a prefabricated substation, including a box body with a cooling mechanism on it. A base plate is fixedly connected to the bottom of the box body, and a second and third water storage tank are provided inside the base plate. The outlet and inlet of the cooling mechanism are respectively connected to a first opening on one side of the second and third water storage tanks. A linear array of insert rods is provided at the bottom of the base plate, and a first and second liquid inlet groove are provided inside the insert rods. This invention, by setting insert rods in the prefabricated substation underground, utilizes the underground insulation and low temperature characteristics to avoid the impact of hot weather on the cooling structure. Furthermore, the low underground temperature allows for heat exchange of the cooling water in the insert rods, thus enabling cooling water to be cooled without using refrigeration equipment such as a chiller, thereby reducing the energy consumption of the chiller in the cooling structure.

[0004] However, the aforementioned patent has some problems in its application. It only uses a plug inserted into the ground for heat exchange, resulting in low heat exchange efficiency and poor cooling water circulation within the plug, leading to unsatisfactory heat dissipation. Therefore, technical improvements are needed.

[0005] Therefore, in response to the above-mentioned technical problems, it is necessary to provide a cooling structure for prefabricated substations.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this utility model is to provide a cooling structure for prefabricated substations, which can solve the problems of the above-mentioned patents, which only use the insertion of the plug into the ground for heat exchange, resulting in low heat exchange efficiency and poor circulation of cooling water inside the plug, leading to unsatisfactory heat dissipation.

[0008] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows: A cooling structure for a prefabricated substation includes a transformer box, inside which a transformer is installed. A door is hinged to the front of the transformer box. Heat dissipation plates are provided on both the left and right sides of the transformer box. Heat dissipation coils are fixedly connected to the inner sides of both heat dissipation plates. A cold storage tank for supplying cooling medium to the heat dissipation coils is fixedly connected to the bottom of the transformer box. Multiple heat-conducting columns are fixedly connected to the bottom of the cold storage tank. The bottom ends of the multiple heat-conducting columns are fixedly connected to a bottom heat exchange box. A circulation pipe is fixedly connected to the bottom heat exchange box, and the other end of the circulation pipe is connected to the cold storage tank.

[0009] In one or more embodiments of this utility model, grooves are provided on both the left and right sides of the transformer box, and the two heat dissipation plates are fixedly connected inside the grooves.

[0010] In one or more embodiments of this utility model, a plurality of heat dissipation fins arranged at equal intervals are fixedly connected to the outer sides of both heat dissipation plates, and ventilation openings are provided at the bottom of both grooves.

[0011] In one or more embodiments of this utility model, a circulation pump is installed at the input end of the heat dissipation coil, and the circulation pump is installed inside the cold storage box.

[0012] In one or more embodiments of this utility model, a fixing frame is fixedly connected inside each of the two grooves, and a fan is installed on each of the two fixing frames.

[0013] In one or more embodiments of this utility model, a plurality of connecting frames are fixedly connected to the bottom of the transformer box, and the outer surfaces of the cold storage box and the bottom heat exchange box are both fixedly connected to the connecting frames.

[0014] In one or more embodiments of this utility model, each of the connecting frames is fixedly connected to a horizontal plate, and each of the horizontal plates is provided with mounting holes.

[0015] In one or more embodiments of this utility model, a plurality of reinforcing ribs are fixedly connected to the outer surface of the cold storage box, and the upper end face of each reinforcing rib is fixedly connected to the bottom surface of the transformer box.

[0016] Compared with existing technologies, the cooling structure of this utility model for prefabricated substations can perform active circulation cooling. By transporting the cooling medium in the cold storage tank to the heat dissipation coil, it can absorb the heat from the transformer and return it to the cold storage tank, thereby continuously and stably removing heat. It is suitable for high-temperature or high-load conditions. Furthermore, by setting heat-conducting columns and bottom heat exchange boxes, the heat from the cold storage tank can be conducted underground and dissipated by taking advantage of the fact that the underground temperature is lower than the ambient temperature, reducing the temperature fluctuation of the cooling medium and further reducing energy consumption. Moreover, the cooperation between the cold storage tank and the bottom heat exchange box can ensure smooth flow of the internal cooling medium and ensure the performance. The heat dissipation plate, heat dissipation fins and fan can be used to disturb the airflow and improve the heat dissipation efficiency of the transformer. The ventilation openings can further promote air circulation and reduce the internal temperature of the substation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of a cooling structure for a prefabricated substation according to one embodiment of the present invention. Figure 2 This is a side view of a cooling structure for a prefabricated substation according to one embodiment of the present invention; Figure 3 This is a cross-sectional view of a cooling structure for a prefabricated substation according to one embodiment of the present invention; Figure 4 This is a top view of a cooling structure for a prefabricated substation according to one embodiment of the present invention.

[0019] Explanation of key figure labels: 1. Transformer box; 2. Box door; 3. Transformer; 4. Groove; 5. Heat sink plate; 6. Heat sink fins; 7. Mounting bracket; 8. Fan; 9. Ventilation opening; 10. Cold storage box; 11. Heat sink coil; 12. Heat conduction column; 13. Bottom heat exchange box; 14. Circulation pipe; 15. Connecting frame; 16. Horizontal plate; 17. Mounting hole; 18. Reinforcing rib; 19. Circulation pump. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0021] like Figures 1 to 4 As shown, a cooling structure for a prefabricated substation according to one embodiment of this utility model includes a transformer box 1, a transformer 3 installed inside the transformer box 1, a door 2 hinged to the front of the transformer box 1, and multiple connecting brackets 15 fixedly connected to the bottom of the transformer box 1. Each connecting bracket 15 has a horizontal plate 16 fixedly connected to it, and each horizontal plate 16 has a mounting hole 17. The transformer box 1 is made of welded steel plate, and the door 2 has a double-sealed structure, which not only facilitates daily inspection and maintenance but also effectively prevents rainwater and dust from entering. The connecting brackets 15 and the horizontal plates 16 facilitate the installation of the device.

[0022] The transformer box 1 has grooves 4 on both its left and right sides, and ventilation openings 9 at the bottom of each groove 4. These grooves and openings form an airflow channel, enabling natural convection cooling. Heat sinks 5 are also installed on both sides of the transformer box 1, and are fixedly connected to the inside of the grooves 4. Several equidistant heat dissipation fins 6 are fixedly connected to the outer sides of each heat sink 5. The heat sinks 5 act as a heat conduction medium, transferring heat from inside the transformer box 1 to the heat dissipation fins 6, thereby significantly increasing the heat dissipation surface area and improving heat dissipation efficiency.

[0023] Both heat dissipation plates 5 have heat dissipation coils 11 fixedly connected to their inner sides. A cold storage tank 10 for supplying cooling medium to the heat dissipation coils 11 is fixedly connected to the bottom surface of the transformer box 1. A circulation pump 19 is installed at the input end of the heat dissipation coils 11, and the circulation pump 19 is installed inside the cold storage tank 10. The heat dissipation coils 11 can achieve active heat transfer through the circulation of cooling medium, complementing air heat dissipation and improving the overall heat dissipation capacity.

[0024] Both recesses 4 are fixedly connected to mounting brackets 7, and both mounting brackets 7 are equipped with fans 8. The fans 8 generate airflow to enhance the heat exchange efficiency of the heat dissipation fins 6.

[0025] Multiple heat-conducting columns 12 are fixedly connected to the bottom surface of the cold storage box 10. The bottom ends of the heat-conducting columns 12 are all fixedly connected to a bottom heat exchange box 13. A circulation pipe 14 is fixedly connected to the bottom heat exchange box 13, and the other end of the circulation pipe 14 is connected to the cold storage box 10. The outer surfaces of both the cold storage box 10 and the bottom heat exchange box 13 are fixedly connected to a connecting frame 15. The cold storage box 10 and the bottom heat exchange box 13 can form a ground-source heat dissipation channel through the heat-conducting columns 12, utilizing the constant temperature characteristics of the underground environment to achieve energy-saving cooling.

[0026] Multiple reinforcing ribs 18 are fixedly connected to the outer surface of the cold storage box 10, and the upper end face of each reinforcing rib 18 is fixedly connected to the bottom surface of the transformer box 1. The reinforcing ribs 18 can enhance the connection strength between the transformer box 1 and the cold storage box 10, prevent the equipment from undergoing structural deformation due to long-term vibration, and improve the overall seismic performance of the equipment.

[0027] Working principle: When in use, the device first needs to be installed at the location of use. The bottom heat exchange box 13 needs to be buried underground. The cold storage box 10 stores the cooling medium, such as water or coolant. After the circulation pump 19 is started, the cooling medium can be pumped into the heat dissipation coil 11. The heat dissipation coil 11 is near the heat-generating components inside the transformer box 1. Through heat exchange, it can absorb the heat generated by the transformer 3 during operation. The high-temperature cooling medium after absorbing heat flows back to the bottom heat exchange box 13 through the circulation pipe 14, and then conducts the heat to the ground through the heat conduction column 12. It can utilize the low temperature environment underground to dissipate heat naturally, so that the cooling medium can be cooled down and flow back to the cold storage box 10, forming a closed loop. Furthermore, the bottom heat exchange box 13 is connected to the cold storage box 10 through the circulation pipe 14, so that the heat dissipation medium inside it can be used in conjunction with the cooling medium in the cold storage box 10, thereby improving the heat dissipation efficiency. The heat dissipation plates 5 and heat dissipation fins 6 set on both sides of the transformer box 1 can increase the heat dissipation area. With the forced air supply of the fan 8, the heat dissipation efficiency can also be improved. The ventilation port 9 can further reduce the internal temperature of the transformer box 1.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cooling structure for a box-type transformer station, comprising a transformer box (1) having a transformer (3) installed inside, and a box door (2) hinged to the front of the transformer box (1), characterized in that, The transformer box (1) is provided with heat dissipation plates (5) on both the left and right sides. Heat dissipation coils (11) are fixedly connected to the inner sides of the two heat dissipation plates (5). A cold storage box (10) for supplying cooling medium to the heat dissipation coils (11) is fixedly connected to the bottom surface of the transformer box (1). Multiple heat-conducting columns (12) are fixedly connected to the bottom surface of the cold storage box (10). The bottom ends of the multiple heat-conducting columns (12) are fixedly connected to a bottom heat exchange box (13). A circulation pipe (14) is fixedly connected to the bottom heat exchange box (13). The other end of the circulation pipe (14) is connected to the cold storage box (10).

2. The cooling structure for a prefabricated substation according to claim 1, characterized in that, The transformer box (1) has grooves (4) on both the left and right sides, and the two heat sinks (5) are fixedly connected inside the grooves (4).

3. The cooling structure for a prefabricated substation according to claim 2, characterized in that, Several heat dissipation fins (6) are fixedly connected to the outer side of the two heat dissipation plates (5), and ventilation openings (9) are provided at the bottom of the two grooves (4).

4. The cooling structure for a prefabricated substation according to claim 1, characterized in that, A circulation pump (19) is installed at the input end of the heat dissipation coil (11), and the circulation pump (19) is installed inside the cold storage box (10).

5. The cooling structure for a prefabricated substation according to claim 2, characterized in that, Both of the grooves (4) are fixedly connected to a bracket (7), and both brackets (7) are equipped with a fan (8).

6. The cooling structure for a prefabricated substation according to claim 1, characterized in that, The bottom of the transformer box (1) is fixedly connected to multiple connecting frames (15), and the outer surfaces of the cold storage box (10) and the bottom heat exchange box (13) are fixedly connected to the connecting frames (15).

7. The cooling structure for a prefabricated substation according to claim 6, characterized in that, Each of the connecting frames (15) is fixedly connected to a horizontal plate (16), and each of the horizontal plates (16) is provided with a mounting hole (17).

8. The cooling structure for a prefabricated substation according to claim 1, characterized in that, The outer surface of the cold storage box (10) is fixedly connected with a plurality of reinforcing ribs (18), and the upper end face of each reinforcing rib (18) is fixedly connected to the bottom surface of the transformer box (1).

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