Ventilated roof structure for a box-type substation

Abstract

The utility model relates to the field of box -type substation discloses a kind of ventilation top cover structure of box -type substation, including top cover body, the top surface of top cover body is set in the body of substation, the top cover body is composed of top plate, bottom plate, side plate, the top surface of top cover body top plate is equipped with two first ventilation openings, the top surface of top plate is fixed with ventilation pipe, the ventilation pipe corresponds with first ventilation opening, the bottom surface of top plate is fixed with two flow guides, the bottom surface of flow guide is fixed with the top surface of bottom plate, two the flow guide cavity inside top cover body is divided into three parts.In the utility model, by the cooperation of flow guide, first fan, second fan, the direction of airflow can be determined, ensure that hot air is discharged from the first ventilation opening on the left and right sides, cold air enters from the middle of second ventilation opening, form efficient airflow circulation, thereby maximize the use of the internal space of ventilation top cover body, improve heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of prefabricated substations, specifically to a ventilated top cover structure for a prefabricated substation. Background Technology

[0002] Prefabricated substations, also known as box-type substations, are a type of high-voltage switchgear, distribution transformer, and low-voltage distribution equipment. They are particularly suitable for urban power grid construction and renovation, and represent a new type of substation that emerged after traditional civil engineering substations. Box-type substations are mostly used for outdoor installation, requiring their enclosures to have a certain degree of weather resistance. Furthermore, they are typically large in size, contain numerous internal electrical devices, and generate significant heat. Therefore, ventilation openings are usually provided on the side walls for ventilation and heat dissipation, while the top is usually a closed structure.

[0003] Chinese Patent No. CN222338887U discloses a ventilation top cover structure for a prefabricated substation, relating to the technical field of prefabricated substations. This utility model includes a base plate, triangular side plates, a top plate, an air outlet duct, and a fan. Triangular side plates are fixed to two opposite sides at the upper end of the base plate. A top plate is fixed to the inclined surfaces of the two triangular side plates in the same direction. Each top plate has two equidistantly distributed air outlets. An air outlet duct is fixed to the inclined surface of the top plate outside each air outlet. Symmetrically distributed ventilation openings are vertically distributed within the base plate, and an inclined fan is installed above each ventilation opening.

[0004] The above solution includes a top plate, a bottom plate, triangular side plates, an air outlet 1, an air outlet 2, a ventilation opening, and a fan, which solves the problem of poor heat dissipation of the top cover of the box-type substation. However, it has the following disadvantages: the air inlet and outlet cavities inside the ventilation top cover are integrated, which makes it easy for the airflow to circulate inside the top cover, thus failing to effectively exhaust hot air and allow cold air to enter, thereby reducing the ventilation effect of the ventilation top cover. Utility Model Content

[0005] The purpose of this utility model is to provide a ventilation top cover structure for a box-type substation, so as to solve the problem that the air inlet and outlet cavities inside the ventilation top cover are integrated, which makes it easy for the airflow to circulate inside the top cover, thus failing to effectively exhaust hot air and allow cold air to enter.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a ventilation top cover structure for a box-type substation, comprising a top cover body, the top cover body being disposed on the top surface of the substation body, the top cover body being composed of a top plate, a bottom plate, and side plates, the top surface of the top plate of the top cover body having two first ventilation openings, a ventilation pipe being fixed on the top surface of the top plate, the ventilation pipe corresponding to the first ventilation openings, two guide blocks being fixed on the bottom surface of the top plate, the bottom surface of the guide blocks being fixed to the top surface of the bottom plate, the two guide blocks dividing the internal cavity of the top cover body into three parts, the cavities on the left and right sides being connected to the first ventilation openings, two mounting grooves being provided on the top surface of the bottom plate, a first fan being fixed to the inner wall of the mounting groove, a fixing groove being provided on the top surface of the bottom plate, a second fan being fixed to the inner wall of the fixing groove, a second ventilation opening being provided on one side of the side plate, the second ventilation opening being connected to the middle cavity.

[0007] Preferably, a first filter screen is threadedly connected to the outer wall of the ventilation duct, the first filter screen corresponding to the first ventilation opening, and a second filter screen is threadedly connected to one side of the side plate, the second filter screen corresponding to the second ventilation opening.

[0008] Preferably, an isolation hopper is fixed to the other side of the side plate, and the isolation hopper corresponds to the second ventilation opening.

[0009] Preferably, a heat insulation layer is fixed on the top surface of the top cover body.

[0010] Preferably, limit frames are fixed at the four corners of the bottom surface of the top cover body, and the substation body is threadedly connected to the limit frames.

[0011] Preferably, the width of the top plate is greater than the length of the substation body.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] First, the coordinated use of the guide block, the first fan, and the second fan clearly defines the airflow direction, ensuring that hot air is exhausted from the first ventilation openings on both sides, while cool air enters from the middle of the second ventilation opening, forming a highly efficient airflow circulation. This maximizes the utilization of the internal space of the ventilation cover, improves heat dissipation efficiency, prevents hot air from accumulating inside, and thus reduces the temperature of the equipment inside the substation, minimizing malfunctions caused by overheating. Second, the coordinated use of the first and second filters effectively blocks dust, insects, and other contaminants from entering the substation through the cover, protecting internal equipment from contamination, extending the cleaning cycle and service life of the equipment, and reducing the risk of corrosion and malfunctions.

[0014] Second, the isolation hopper guides rainwater along the curved surface, preventing it from entering the main body of the top cover through the second ventilation opening, thus ensuring the working efficiency of the second fan and improving the ventilation efficiency of the top cover. The heat insulation layer blocks solar radiation, effectively preventing solar radiation or external high temperatures from affecting the internal equipment of the substation, thereby helping to maintain stable internal temperature, reducing the load on the internal cooling system, and lowering energy consumption.

[0015] Third, the top cover body can be fixed by the limiting bracket, so that the top cover body can be accurately fixed on the top surface of the substation body, which can effectively prevent the top cover body from being misaligned during installation, thereby improving the stability of the top cover body. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the utility model.

[0017] Figure 2 This is an exploded schematic diagram of a utility model.

[0018] Figure 3 This is a plan view of the ventilation duct and guide block in the utility model.

[0019] Figure 4 For utility model Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Top cover body; 2. Substation body; 3. First ventilation opening; 4. Ventilation pipe; 5. Guide block; 6. Mounting slot; 7. First fan; 8. Fixing slot; 9. Second fan; 10. Second ventilation opening; 11. First filter screen; 12. Second filter screen; 13. Isolation hopper; 14. Heat insulation layer; 15. Limiting frame. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-4As shown, a ventilation top cover structure for a prefabricated substation includes a top cover body 1, which is disposed on the top surface of the substation body 2. The top cover body 1 consists of a top plate, a bottom plate, and side plates. Two first ventilation openings 3 are formed on the top surface of the top plate of the top cover body 1. A ventilation pipe 4 is fixed to the top surface of the top plate, corresponding to the first ventilation openings 3. Two guide blocks 5 are fixed to the bottom surface of the top plate, with the bottom surface of the guide blocks 5 fixed to the top surface of the bottom plate. The two guide blocks 5 divide the internal cavity of the top cover body 1. It consists of three parts. The cavities on the left and right sides are connected to the first ventilation opening 3. Two mounting slots 6 are opened on the top surface of the bottom. The first fan 7 is fixed to the inner wall of the mounting slot 6. A fixing slot 8 is opened on the top surface of the bottom. The second fan 9 is fixed to the inner wall of the fixing slot 8. A second ventilation opening 10 is opened on one side of the side plate. The second ventilation opening 10 is connected to the middle cavity. The first fan 7 exhausts the hot air inside the substation body 2, and the second fan 9 injects cold air into the substation body 2 to circulate the air.

[0023] In use, the direction of airflow can be clearly defined by the coordination of the guide block 5, the first fan 7, and the second fan 9, ensuring that hot air is discharged from the first ventilation opening 3 on both sides and cold air enters from the middle of the second ventilation opening 10, forming an efficient airflow circulation. This maximizes the use of the internal space of the ventilation top cover body 1, improves heat dissipation efficiency, prevents hot air from accumulating inside, and thus reduces the temperature of the equipment inside the substation body 2, reducing failures caused by overheating.

[0024] like Figures 1-4 As shown, the outer wall of the ventilation duct 4 is threaded with a first filter screen 11, which corresponds to the first ventilation opening 3. One side of the side plate is threaded with a second filter screen 12, which corresponds to the second ventilation opening 10. The other side of the side plate is fixed with an isolation hopper 13, which corresponds to the second ventilation opening 10.

[0025] During use, the cooperation of the first filter 11 and the second filter 12 effectively prevents dust, insects, and other contaminants from entering the substation body 2 through the top cover body 1, protecting the internal equipment from contamination, thereby extending the cleaning cycle and service life of the equipment, and reducing the risk of corrosion and failure of the internal equipment. The isolation hopper 13 guides rainwater to flow out along the curved surface, preventing rainwater from entering the top cover body 1 through the second vent 10, thus ensuring the working efficiency of the second fan 9 and improving the ventilation efficiency of the top cover body 1.

[0026] like Figures 1-4 As shown, a heat insulation layer 14 is fixed on the top surface of the top cover body 1, and a limit frame 15 is fixed at each of the four corners of the bottom surface of the top cover body 1. The substation body 2 is threadedly connected to the limit frame 15, and the width of the top plate is greater than the length of the substation body 2.

[0027] During use, the heat insulation layer 14 can block solar radiation, effectively preventing solar radiation or external high temperatures from affecting the internal equipment of the substation body 2. This helps maintain the internal temperature stability of the substation body 2, reduces the load on the internal cooling system, and lowers energy consumption. The limiting bracket 15 can limit and fix the top cover body 1, allowing it to be precisely fixed to the top surface of the substation body 2. This effectively prevents misalignment of the top cover body 1 during installation, thereby improving its stability.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A ventilated top cover structure for a prefabricated substation, comprising a top cover body (1), wherein the top cover body (1) is disposed on the top surface of the substation body (2), characterized in that, The top cover body (1) is composed of a top plate, a bottom plate, and a side plate. The top plate of the top cover body (1) has two first ventilation openings (3) on its top surface. A ventilation pipe (4) is fixed on the top surface of the top plate. The ventilation pipe (4) corresponds to the first ventilation opening (3). Two guide blocks (5) are fixed on the bottom surface of the top plate. The bottom surface of the guide blocks (5) is fixed to the top surface of the bottom plate. The two guide blocks (5) divide the internal cavity of the top cover body (1) into three parts. The cavities on the left and right sides are connected to the first ventilation openings (3). Two mounting grooves (6) are opened on the top surface of the bottom surface. A first fan (7) is fixed on the inner wall of the mounting groove (6). A fixing groove (8) is opened on the top surface of the bottom surface. A second fan (9) is fixed on the inner wall of the fixing groove (8). A second ventilation opening (10) is opened on one side of the side plate. The second ventilation opening (10) is connected to the middle cavity.

2. The ventilation top cover structure of a prefabricated substation according to claim 1, characterized in that: The outer wall of the ventilation pipe (4) is threaded with a first filter screen (11), which corresponds to the first ventilation opening (3). A second filter screen (12) is threaded on one side of the side plate, which corresponds to the second ventilation opening (10).

3. The ventilation top cover structure of a prefabricated substation according to claim 2, characterized in that: An isolation hopper (13) is fixed on the other side of the side plate, and the isolation hopper (13) corresponds to the second ventilation opening (10).

4. The ventilation top cover structure of a prefabricated substation according to claim 1, characterized in that: A heat insulation layer (14) is fixed on the top surface of the top cover body (1).

5. The ventilation top cover structure of a prefabricated substation according to claim 4, characterized in that: Limiting frames (15) are fixed at the four corners of the bottom surface of the top cover body (1), and the substation body (2) is threadedly connected to the limiting frames (15).

6. The ventilation top cover structure of a prefabricated substation according to claim 5, characterized in that: The width of the top plate is greater than the length of the substation body (2).

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