A box-type substation with a heat insulation, heat dissipation and sealing structure

Abstract

This utility model relates to a prefabricated substation with a heat-insulating, heat-dissipating, and sealed structure, including a prefabricated substation body; the prefabricated substation body includes several side walls and a top cover connected to the top of the side walls; a sealing door is provided on the side wall; an annular water guide groove is provided on the side wall corresponding to the sealing door; a sealing strip is provided on the sealing door to cooperate with the annular water guide groove; the top cover includes a top plate; several partitions are spaced apart on the top plate to form a heat dissipation air duct between the top plate and the partitions; several heat dissipation fans are provided on the side wall near the top cover; and a ventilation opening is provided on the sealing door away from the top cover. This utility model achieves optimized heat dissipation by adopting an optimized cabinet air cavity exhaust channel design and heat dissipation layout, and designing the air cavity and exhaust channel according to aerodynamic principles; the cooperation of the annular water guide groove and the sealing strip ensures the sealing door is waterproof under water flow impact; the triangular structure of the top plate prevents rainwater accumulation, extends service life, and also helps the ventilation of the heat dissipation air duct.

Description

Technical Field

[0001] This utility model relates to the field of European-style box-type substations, and more particularly to a box-type substation with a heat insulation, heat dissipation and sealing structure. Background Technology

[0002] A prefabricated substation, also known as a prefabricated transformer substation, is a factory-prefabricated, compact indoor or outdoor power distribution device that integrates high-voltage switchgear, distribution transformers, and low-voltage power distribution equipment according to a specific wiring scheme. It organically combines transformer voltage reduction and low-voltage power distribution functions, all housed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, theft-proof, heat-insulated, fully enclosed, and movable steel structure box. Particularly suitable for urban power grid construction and renovation, it represents a new type of substation that has emerged after traditional civil engineering substations. Prefabricated substations are suitable for mines, factories, oil and gas fields, and wind power stations, replacing traditional civil engineering distribution rooms and substations, becoming a new type of complete power distribution system.

[0003] However, the current design of prefabricated transformer substations is relatively simple. Existing prefabricated substations generate a large amount of heat during operation. After prolonged operation, due to the high heat generated and the fact that outdoor prefabricated substations are often exposed to direct sunlight or high temperatures, they face extreme conditions such as sun exposure, rain, and dust. The large amount of heat accumulating around the equipment can easily lead to overheating, rain damage causing moisture, decreased insulation performance, and increased safety hazards, affecting the reliability of equipment operation. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this utility model provides a box-type substation with a heat-insulating, heat-dissipating, and sealed structure.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0006] A prefabricated substation with a heat-insulating, heat-dissipating, and sealed structure includes a prefabricated substation body; the prefabricated substation body includes several side walls and a top cover connected to the top of the side walls; the side walls are provided with sealing doors; the side walls are provided with annular water guide grooves corresponding to the sealing doors; the sealing doors are provided with sealing strips that cooperate with the annular water guide grooves; the top cover includes a top plate; the top plate is provided with several partitions at intervals to form a heat dissipation air duct between the top plate and the partitions; several heat dissipation fans are provided on the side walls near the top cover; at least one of the sealing doors is provided with a ventilation opening away from the top cover.

[0007] In one embodiment of this utility model, the sealing door is hinged to the side wall.

[0008] In one embodiment of the present invention, an inlet and outlet corresponding to the sealing door are formed on the side wall; a first connecting plate extending outward toward the side wall is connected to the edge of the inlet and outlet; a baffle is connected to the end of the first connecting plate away from the side wall; the baffle extends outward toward the inlet and outlet; an annular water guide groove is formed between the baffle, the first connecting plate and the side wall.

[0009] In one embodiment of this utility model, the sealing strip is in sealing contact with the baffle, or in sealing contact with the side of the first connecting plate near the inlet / outlet.

[0010] In one embodiment of this utility model, the top plate is connected to the partition plate by several support frames.

[0011] In one embodiment of this utility model, the support frame is a U-shaped channel steel; the partition is any one of a reflector, a heat insulation plate, or a metal plate.

[0012] In one embodiment of this utility model, a connecting horizontal plate is provided at one end of the side wall near the top cover; the top cover includes a second connecting plate fixedly connected to the connecting horizontal plate; the second connecting plate is spaced apart from the top plate.

[0013] In one embodiment of this utility model, the second connecting plate is connected to the top plate via a U-shaped connecting plate; the opening of the U-shaped connecting plate faces the top plate.

[0014] In one embodiment of this utility model, the opening of the vent is positioned away from the top cover.

[0015] In one embodiment of this utility model, the top plate is triangular in shape, with a higher center and lower sides.

[0016] The beneficial effects of this utility model are as follows: by adopting an optimized cabinet air cavity exhaust channel design and heat dissipation layout, the air cavity and exhaust channel in the inner structure are designed according to the aerodynamic principle to achieve optimized heat dissipation; the combination of the annular water guide groove and the sealing strip can ensure the waterproof effect of the door under the impact of water flow, and will not damage the electrical equipment inside the main body; the triangular structure of the top plate can prevent rainwater accumulation, extend service life, and also help the ventilation of the heat dissipation air duct. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural view of the present invention;

[0019] Figure 2 yes Figure 1 Enlarged diagram of section A in the middle;

[0020] Figure 3 This is a side view of the structure of this utility model;

[0021] Figure 4 yes Figure 3 Three-dimensional view of section II;

[0022] Figure 5 yes Figure 4 Enlarged schematic diagram of section B in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Main body of the prefabricated substation; 110. Side wall; 111. Inlet and outlet; 112. Connecting horizontal plate; 120. Sealing door; 121. Sealing strip; 122. Ventilation opening; 130. Annular water guide channel; 131. First connecting plate; 1311. Inner wall of connecting plate; 132. Baffle; 140. Cooling fan; 150. Top cover; 151. Top plate; 152. Second connecting plate; 153. U-shaped connecting plate; 154. Side plate; 160. Support frame; 170. Partition plate; 171. Cooling duct. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, 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 a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Examples, such as Figure 1-5 As shown:

[0029] A prefabricated substation with a heat-insulating, heat-dissipating, and sealed structure includes a prefabricated substation body 100; the prefabricated substation body 100 includes several side walls 110 and a top cover 150 connected to the top of the side walls 110; the side walls 110 are provided with sealing doors 120; the side walls 110 are provided with annular water guide grooves 130 corresponding to the sealing doors 120; the sealing doors 120 are provided with sealing strips 121 that cooperate with the annular water guide grooves 130; the top cover 150 includes a top plate 151; the top plate 151 is provided with several partitions 170 spaced apart to form a heat dissipation air duct 171 between the top plate 151 and the partitions 170; several heat dissipation fans 140 are provided on the side walls 110 near the top cover 150; at least one of the sealing doors 120 is provided with a vent 122 away from the top cover 150.

[0030] An annular water guide channel 130 is designed around the connection gap between the sealing door 120 and the side wall 110, actively guiding rainwater flow. When it rains outdoors or there is splashing water, the water guide channel can quickly collect rainwater dripping or flowing from the edge of the sealing door 120 and discharge it through the preset path of the annular water guide channel 130, preventing rainwater from directly seeping into the gap between the sealing door 120 and the side wall 110, thus blocking the rainwater intrusion channel at the source. The sealing strip 121 works in conjunction with the annular water guide channel 130 to further enhance the sealing performance of the sealing door 120 and the side wall 110. On the one hand, the sealing strip 121 fills the gap, physically preventing rainwater and dust from entering the transformer substation through the gap; on the other hand, it can reduce the infiltration of external humid air and corrosive gases, protecting the internal high-voltage switchgear, transformer and other core components from moisture corrosion, maintaining stable equipment insulation performance, and reducing safety hazards such as short circuits and leakage caused by moisture.

[0031] Outdoor transformer substations are exposed to direct sunlight for extended periods, causing the top cover 150 to overheat and transfer heat internally. The partitions 170 spaced apart on the top plate 151 divide the top cover 150 area into multiple independent heat dissipation ducts 171. These ducts 171 can remove some of the heat from the surface of the top cover 150 through airflow, reducing its own temperature. Simultaneously, the partitions 170 can reduce the direct area of ​​sunlight hitting the top plate 151 (or create shaded areas), further reducing the solar radiation heat absorbed by the top cover 150 and mitigating the chain reaction of "top cover 150 overheating → internal temperature rise".

[0032] The heat generated by the equipment inside the transformer substation will raise the air temperature, causing the hot air to naturally rise and accumulate in the top area. The cooling fan 140, located on the side wall 110 near the top cover 150, actively draws in the hot air from the top, creating a forced exhaust effect. This overcomes the limitations of natural heat dissipation, significantly increasing the speed of hot air removal and preventing long-term heat accumulation inside. The active exhaust action of the fan enhances the internal airflow dynamics, working in conjunction with the air intake at the lower vent 122 to create a suction-extraction linkage, accelerating the internal air renewal frequency. This allows the heat generated by the equipment to be quickly removed, effectively reducing the internal ambient temperature and preventing performance degradation or shortened lifespan due to prolonged high-temperature operation. The vent 122 is located in the lower area of ​​the enclosure 120 away from the top cover 150 (i.e., the lower part of the transformer substation), forming a bottom-in, top-out air convection path with the top cooling fan 140: low-temperature external air enters the transformer substation through the lower vent 122, absorbs heat as it flows past the heat-generating equipment, rises in temperature, and is eventually drawn out by the top cooling fan 140. This closed-loop convection significantly improves heat dissipation efficiency and solves the problems of slow airflow and heat accumulation during natural ventilation.

[0033] The support beams inside the main body 100 of the prefabricated substation can be moved and fixed as needed, and have the function of conveniently adjusting the position of auxiliary equipment such as high-voltage switchgear, distribution transformer and low-voltage power distribution device.

[0034] In one embodiment of the present invention, the sealing door 120 is hinged to the side wall 110.

[0035] In one embodiment of the present invention, an inlet and outlet 111 corresponding to the sealing door 120 are formed on the side wall 110; a first connecting plate 131 extending outward toward the side wall 110 is connected to the edge of the inlet and outlet 111; a baffle 132 is connected to the end of the first connecting plate 131 away from the side wall 110; the baffle 132 extends outward toward the inlet and outlet 111; an annular water guide groove 130 is formed between the baffle 132, the first connecting plate 131 and the side wall 110.

[0036] The first connecting plate 131 is connected to the edge of the inlet / outlet 111 and extends outward from the side wall 110, providing fixed support for the baffle 132, so that the baffle 132, the first connecting plate 131, and the side wall 110 form a stable annular water guide channel 130 structure. Compared with a water guide channel that simply has a groove on the surface of the side wall 110, this outwardly extending first connecting plate 131 design can increase the depth and capacity of the annular water guide channel 130, improve the rainwater collection capacity, and prevent rainwater from overflowing or seeping into gaps due to insufficient capacity of the annular water guide channel 130. The first connecting plate 131 extends outward, so that the annular water guide channel 130 protrudes entirely from the surface of the side wall 110, forming an outwardly protruding annular barrier.

[0037] In one embodiment of the present invention, the sealing strip 121 is in sealing contact with the baffle 132, or in sealing contact with the side of the first connecting plate 131 near the inlet / outlet 111.

[0038] The baffle 132 extends outward from the inlet / outlet 111 and has a strong structural rigidity (supported by the first connecting plate 131). When the sealing strip 121 directly abuts against the baffle 132, the planar support force of the baffle 132 ensures that the sealing strip 121 is evenly compressed, reducing local sealing failure caused by uneven closing force of the sealing door 120. Compared to the sealing strip 121 only abutting against the surface of the side wall 110, the rigid support of the baffle 132 can reduce the sealing gap caused by deformation or aging of the sealing strip 121 after long-term use, thus extending the sealing life. The baffle 132 itself has the function of intercepting external rainwater and dust. After the sealing strip 121 abuts against the baffle 132, a secondary seal can be formed on the inner side of the baffle 132. When a small amount of rainwater passes over the baffle 132 and enters the water guide channel, the sealing strip 121 can prevent rainwater from seeping into the interior through the gap between the baffle 132 and the sealing door 120.

[0039] The first connecting plate 131 is located on the side near the inlet / outlet 111, specifically as follows: Figure 2The inner wall 1311 of the connecting plate is where the sealing strip 121 abuts, which can directly seal the starting point of the gap and prevent rainwater and moisture from entering the interior.

[0040] In one embodiment of the present invention, the top plate 151 is connected to the partition plate 170 by a plurality of support frames 160.

[0041] In one embodiment of this utility model, the support frame 160 is a U-shaped channel steel; the partition 170 is any one of a reflector, a heat insulation plate, or a metal plate. When the support frame 160 is a U-shaped channel steel, an air duct can also be formed inside the support frame 160, which is beneficial for heat dissipation. Due to the interval partition 170 connection method adopted in this utility model, the material of the partition 170 has more choices. It is not necessary to use a heat insulation plate to reduce heat transfer to the interior of the box-type substation body 100. Due to the setting of the heat dissipation air duct 171, the partition 170 can be made of general materials for heat insulation. Combined with the heat dissipation effect of the heat dissipation air duct 171, it can also reduce the heat accumulation on the top of the box-type substation body 100. For example, a metal plate can be used. Although the metal plate will absorb heat, it can also reflect sunlight. The contact area between the support frame 160 and the top plate 151 is limited, and the heat transfer from the partition 170 to the top plate 151 is blocked. With the design of the heat dissipation air duct 171, the temperature rise of the top plate 151 can be slowed down.

[0042] In one embodiment of the present invention, a connecting horizontal plate 112 is provided at one end of the side wall 110 near the top cover 150; the top cover 150 includes a second connecting plate 152 fixedly connected to the connecting horizontal plate 112; the second connecting plate 152 is spaced apart from the top plate 151.

[0043] In one embodiment of this utility model, the second connecting plate 152 is connected to the top plate 151 via a U-shaped connecting plate 153; the opening of the U-shaped connecting plate 153 faces the top plate 151. Through the arrangement of the U-shaped connecting plate 153, such as... Figure 5 As shown, the U-shaped connecting plate 153 is actually located on the outer side of the side wall 110 and extends downwards to form a sunken structure, which can more effectively prevent rainwater intrusion. The U-shaped connecting plate 153 includes two side plates 154 arranged opposite each other. The two side plates 154 have different heights, thereby achieving the spacing between the second connecting plate 152 and the top plate 151; the spacing between the second connecting plate 152 and the top plate 151 can raise the top plate 151.

[0044] In one embodiment of this utility model, the opening of the vent 122 is positioned away from the top cover 150. The structural design of the vent 122 is prior art in this field, and by setting the opening of the vent 122 to face downwards, it provides better protection against rainwater.

[0045] In one embodiment of this utility model, the top plate 151 is triangular in shape, higher in the middle and lower on both sides. This arrangement allows for a shorter partition 170 and also shortens the length of the heat dissipation duct 171. When natural air enters the heat dissipation duct 171, its shorter length makes it easier for the air to exit, thus achieving a cooling effect. Figure 1 As shown, the top plate 151 has inclined plate-like structures on the left and right sides, which makes the heat dissipation air ducts 171 between the left and right opposite partitions 170 set at an angle. After natural wind enters from one side of the heat dissipation air duct 171, it only needs to travel the length of one heat dissipation air duct 171 to reach the outside. The path of natural wind in the heat dissipation air duct 171 is shortened, the resistance is reduced, and the wind speed required for natural wind heat dissipation is reduced.

[0046] When the top plate 151 is a complete plate structure, all the heat dissipation ducts 171 are horizontally interconnected. When natural wind enters one of the heat dissipation ducts 171, the heat dissipation duct 171 guides the natural wind, causing it to further enter the adjacent heat dissipation ducts 171. This means that the natural wind needs to travel a longer distance through the heat dissipation ducts 171 to reach the outside. During this process, the natural wind will encounter more resistance. To achieve effective heat dissipation, the natural wind needs to have a higher wind speed. Otherwise, because the natural wind is constantly blocked in the long path of the heat dissipation ducts 171, the natural wind may not be able to overflow from the heat dissipation ducts 171 or the overflow speed will be greatly limited, reducing the efficiency of heat exchange and heat dissipation.

[0047] In this invention, the top plate 151 is triangular in shape, with a high center and low sides, which also helps with drainage and thus prevents rainwater from accumulating.

[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A box-type substation with a heat-insulating, heat-dissipating, and sealed structure, characterized in that: The system includes a prefabricated substation body (100); the prefabricated substation body (100) includes several side walls (110) and a top cover (150) connected to the top of the side walls (110); the side walls (110) are provided with sealing doors (120); the side walls (110) are provided with annular water guide grooves (130) corresponding to the sealing doors (120); the sealing doors (120) are provided with sealing strips (121) that cooperate with the annular water guide grooves (130); the top cover (150) includes a top plate (151); the top plate (151) is provided with several partitions (170) spaced apart to form a heat dissipation duct (171) between the top plate (151) and the partitions (170); the side walls (110) are provided with several heat dissipation fans (140) near the top cover (150); at least one of the sealing doors (120) is provided with a vent (122) away from the top cover (150).

2. A box-type substation with a heat-insulating, heat-dissipating, and sealed structure according to claim 1, characterized in that: The sealing door (120) is hinged to the side wall (110).

3. A box-type substation with a heat-insulating, heat-dissipating, and sealed structure according to claim 1, characterized in that: An inlet and outlet (111) corresponding to the sealing door (120) are formed on the side wall (110); the edge of the inlet and outlet (111) is connected to a first connecting plate (131) extending outward toward the side wall (110); a baffle (132) is connected to the end of the first connecting plate (131) away from the side wall (110); the baffle (132) extends outward toward the inlet and outlet (111); an annular water guide groove (130) is formed between the baffle (132), the first connecting plate (131) and the side wall (110).

4. A box-type substation with a heat-insulating, heat-dissipating, and sealed structure according to claim 3, characterized in that: The sealing strip (121) is in sealing contact with the baffle (132), or in sealing contact with the side of the first connecting plate (131) near the inlet / outlet (111).

5. A box-type substation with a heat-insulating, heat-dissipating, and sealed structure according to claim 1, characterized in that: The top plate (151) is connected to the partition (170) by several support frames (160).

6. A box-type substation with a heat-insulating, heat-dissipating, and sealed structure according to claim 5, characterized in that: The support frame (160) is a U-shaped channel steel; the partition (170) is any one of a reflector, a heat insulation plate, or a metal plate.

7. A box-type substation with a heat-insulating, heat-dissipating, and sealed structure according to claim 1, characterized in that: The side wall (110) is provided with a connecting horizontal plate (112) at one end near the top cover (150); the top cover (150) includes a second connecting plate (152) fixedly connected to the connecting horizontal plate (112); the second connecting plate (152) is spaced apart from the top plate (151).

8. A box-type substation with a heat-insulating, heat-dissipating, and sealed structure according to claim 7, characterized in that: The second connecting plate (152) is connected to the top plate (151) via a U-shaped connecting plate (153); the opening of the U-shaped connecting plate (153) is oriented toward the top plate (151).

9. A box-type substation with a heat-insulating, heat-dissipating, and sealed structure according to claim 1, characterized in that: The opening of the vent (122) is positioned away from the top cover (150).

10. A box-type substation with a heat-insulating, heat-dissipating, and sealed structure according to claim 1, characterized in that: The top plate (151) is triangular in shape, with a high center and low sides.

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