Top cover structure of box-type substation

Abstract

The utility model relates to the technical field of transformer substations, and particularly discloses a top cover structure of a box-type transformer substation, which comprises a top cover, and the top cover comprises an upper waterproof layer, a middle flow guide cavity and a lower punching steel plate which are sequentially arranged from top to bottom through welding; an extension plate is welded to the outer wall of the upper waterproof layer, a corrugated groove is formed in the outer wall of the upper waterproof layer, an annular water tank is formed in the upper end face of the extension plate, and drainage pipes are communicated with the four corners of the bottom end of the annular water tank. Rainwater in the annular water tank is drained through the drainage pipe, then a four-stage drainage channel is formed through surface runoff, groove diversion, annular collection and vertical pipe rapid drainage, and compared with a traditional top cover, the drainage efficiency can be improved; a turbulent flow enhancing channel is formed through the lower punching steel plate and the middle flow guide cavity, and the heat dissipation effect on the transformer substation is further improved.

Description

Technical Field

[0001] This utility model relates to the field of substation technology, and specifically discloses a box-type substation top cover structure. Background Technology

[0002] A prefabricated box-type substation is a compact indoor / outdoor power distribution device that integrates high-voltage switchgear, distribution transformers, and low-voltage power distribution equipment in a factory according to a specific wiring scheme. It organically combines functions such as high-voltage power reception, transformer voltage reduction, and low-voltage power distribution, and installs them in a moisture-proof, rust-proof, rodent-proof, fire-proof, theft-proof, heat-insulated, fully enclosed, and movable steel structure box. It operates in a fully enclosed manner and is particularly suitable for urban power grid construction and renovation. It is a brand-new type of substation that has emerged after civil engineering substations.

[0003] Chinese Patent No. CN222168972U discloses a top cover structure for a prefabricated substation, including a top cover frame with a top cover skeleton on the frame. A mesh panel is provided at the bottom of the top cover skeleton as an internal ceiling. A rock wool composite layer is provided at the top of the top cover skeleton, composed of multiple rock wool composite panels spliced ​​together in a top-down manner. The joints between the rock wool composite panels and between the rock wool composite panels and the top frame are connected with large-cap rivets. The top cover skeleton has protrusions around its perimeter, each containing multiple heat dissipation holes to expel heat from the prefabricated substation. This invention meets the flame-retardant requirements for prefabricated substations in certain applications, solves the problem of rock wool composite panel splicing from a structural design perspective, and prevents water leakage. 。

[0004] The aforementioned document relies on a single slope and has a single drainage channel level, resulting in low drainage volume. Furthermore, it only achieves air convection heat dissipation through the surrounding ventilation holes, leading to poor heat dissipation in the substation. Therefore, a box-type substation roof structure is needed to solve this problem. Utility Model Content

[0005] This utility model proposes a box-type substation top cover structure, which forms a four-stage drainage channel through surface runoff → groove guidance → annular collection → rapid discharge through riser pipe, which can improve drainage efficiency compared with traditional top covers; and further enhances the heat dissipation effect of the substation by forming a turbulence enhancement channel through the lower perforated steel plate and the middle guide cavity.

[0006] This utility model is implemented as follows: a box-type substation top cover structure includes a top cover, which is composed of an upper waterproof layer, a middle flow guiding cavity, and a lower perforated steel plate that are welded together and arranged sequentially from top to bottom;

[0007] An extension plate is welded to the outer wall of the upper waterproof layer. A corrugated groove is formed on the outer wall of the upper waterproof layer. An annular water groove is formed on the upper end face of the extension plate. A connection port is connected between the corrugated groove and the annular water groove. Drainage pipes are connected to the four corners of the bottom of the annular water groove.

[0008] Louvers are provided on all four side walls of the central flow guide cavity. A perforated steel plate located on the upper surface of the substation is welded to the bottom of the central flow guide cavity. Multiple heat dissipation holes communicating with the central flow guide cavity are opened through the outer wall of the perforated steel plate.

[0009] As a preferred embodiment of the top cover structure of the box-type substation of this utility model, a water baffle plate located outside the louvers and inside the drain pipe is fixedly connected to the lower end face of the extension plate, and the water baffle plate has a rectangular structure.

[0010] As a preferred embodiment of the top cover structure of a box-type substation according to this utility model, the lower end face of the perforated steel plate is detachably connected to a stainless steel anti-fall mesh plate by bolts.

[0011] As a preferred embodiment of the top cover structure of the box-type substation of this utility model, a stainless steel woven mesh is installed inside the top of the drainage pipe.

[0012] As a preferred embodiment of the top cover structure of the box-type substation of this utility model, there is a gap between the water baffle and the middle guide cavity.

[0013] As a preferred embodiment of the top cover structure of the box-type substation of this utility model, the lower end face of the middle guide cavity is welded with a connecting plate that is welded to the substation.

[0014] The beneficial effects of this utility model are:

[0015] 1. Rainwater flows along the corrugated grooves, enters the annular water tank through the connection port, and is then discharged from the annular water tank through the drain pipe. The process is further divided into surface runoff → groove guidance → annular collection → rapid discharge through the riser, forming a four-stage drainage channel, which can improve drainage efficiency compared to traditional top covers.

[0016] 2. Heat in the substation enters the middle guide cavity through the heat dissipation holes on the lower perforated steel plate, and then dissipates the heat through the louvers. Furthermore, the lower perforated steel plate and the middle guide cavity form a turbulence enhancement channel, which further improves the heat dissipation effect of the substation. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is an overall structural diagram of a box-type substation top cover structure according to the present invention.

[0019] Figure 2 This is a front view structural diagram of a box-type substation top cover structure according to the present invention.

[0020] Figure 3 This is a structural diagram of the flow guide layer and the lower perforated steel plate in this utility model.

[0021] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A.

[0022] The markings in the diagram are: 1. Top cover; 2. Upper waterproof layer; 201. Extension plate; 202. Annular water trough; 203. Drain pipe; 204. Corrugated groove; 205. Connection port; 206. Water baffle; 3. Middle guide cavity; 301. Louver; 4. Lower perforated steel plate; 401. Heat dissipation hole; 5. Anti-fall net plate. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Please see Figure 1-4 A box-type substation top cover structure includes a top cover 1, which is composed of an upper waterproof layer 2, a middle flow guiding cavity 3, and a lower perforated steel plate 4, which are welded together and arranged sequentially from top to bottom.

[0025] An extension plate 201 is welded to the outer wall of the upper waterproof layer 2. A corrugated groove 204 is provided on the outer wall of the upper waterproof layer 2. An annular water groove 202 is provided on the upper end face of the extension plate 201. A connection port 205 is connected between the corrugated groove 204 and the annular water groove 202. Drain pipes 203 are connected to the four corners of the bottom of the annular water groove 202.

[0026] Louvers 301 are provided on all four side walls of the central flow guide cavity 3. A perforated steel plate 4 located on the upper surface of the substation is welded to the bottom of the central flow guide cavity 3. Multiple heat dissipation holes 401 communicating with the central flow guide cavity 3 are opened through the outer wall of the perforated steel plate 4.

[0027] In this embodiment: the upper waterproof layer 2 can achieve the effect of drainage. Specifically, rainwater flows along the corrugated groove 204, enters the annular water tank 202 through the connection port 205, and then the rainwater in the annular water tank 202 is discharged through the drain pipe 203. Then, through surface runoff → groove guidance → annular collection → rapid discharge through the riser, a four-stage drainage channel is formed, which can improve the drainage efficiency compared with the traditional top cover 1.

[0028] Heat inside the substation enters the middle guide cavity 3 through the heat dissipation holes 401 on the lower perforated steel plate 4, and then dissipates the heat through the louvers 301. Furthermore, the lower perforated steel plate 4 and the middle guide cavity 3 form a turbulence enhancement channel, which further improves the heat dissipation effect of the substation.

[0029] As a technical optimization of this utility model, a water baffle 206 located outside the louver 301 and inside the drain pipe 203 is fixedly connected to the lower end face of the extension plate 201. The water baffle 206 has a rectangular structure.

[0030] In this embodiment, the water baffle 206 effectively blocks rainwater splashing while ensuring heat dissipation.

[0031] As a technical optimization of this utility model, the lower end face of the perforated steel plate 4 is detachably connected to a stainless steel anti-fall mesh plate 5 by bolts.

[0032] In this embodiment, by setting a stainless steel anti-fall mesh plate 5, the problem of preventing foreign objects from entering can be achieved.

[0033] As a technical optimization of this utility model, a stainless steel woven mesh is installed inside the top of the drain pipe 203.

[0034] In this embodiment: by installing a stainless steel woven mesh inside the drain pipe 203, rats can be prevented from entering the drain pipe 203.

[0035] As a technical optimization of this utility model, there is a gap between the baffle plate 206 and the middle guide cavity 3.

[0036] In this embodiment, the gap between the water baffle 206 and the central guide cavity 3 ensures normal heat dissipation while preventing rainwater from entering the louver 301.

[0037] As a technical optimization of this utility model, the lower end face of the middle guide cavity 3 is welded with a connecting plate that is welded to the substation.

[0038] In this embodiment, the connecting plate facilitates the welding of the top cover 1 to the top of the substation.

[0039] The working principle and usage process of this utility model are as follows: The upper waterproof layer 2 can achieve the effect of drainage. Specifically, rainwater flows along the corrugated groove 204, enters the annular water tank 202 through the connection port 205, and then the rainwater in the annular water tank 202 is discharged through the drain pipe 203. The baffle plate 206 effectively blocks rainwater splashing while ensuring heat dissipation. Then, through surface runoff → groove guidance → annular collection → rapid discharge through the riser pipe, a four-stage drainage channel is formed, which can improve drainage efficiency compared with the traditional top cover 1.

[0040] Heat inside the substation enters the middle guide cavity 3 through the heat dissipation holes 401 on the lower perforated steel plate 4, and then dissipates the heat through the louvers 301. Furthermore, the lower perforated steel plate 4 and the middle guide cavity 3 form a turbulence enhancement channel, which further improves the heat dissipation effect of the substation.

[0041] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0042] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A roof structure for a box-type substation, comprising a roof (1), characterized in that: The top cover (1) comprises an upper waterproof layer (2) and a middle flow guide cavity (3) that are welded together and arranged sequentially from top to bottom, and a lower perforated steel plate (4); An extension plate (201) is welded to the outer wall of the upper waterproof layer (2). A corrugated groove (204) is provided on the outer wall of the upper waterproof layer (2). An annular water groove (202) is provided on the upper end face of the extension plate (201). A connection port (205) is connected between the corrugated groove (204) and the annular water groove (202). Drainage pipes (203) are connected to the four corners of the bottom of the annular water groove (202). Louvers (301) are provided on all four side walls of the central flow guiding cavity (3). A perforated steel plate (4) located on the upper surface of the substation is welded to the bottom of the central flow guiding cavity (3). Multiple heat dissipation holes (401) communicating with the central flow guiding cavity (3) are opened through the outer wall of the perforated steel plate (4).

2. The box-type substation roof structure according to claim 1, characterized in that: The lower end face of the extension plate (201) is fixedly connected to a baffle plate (206) located outside the louver (301) and inside the drain pipe (203), and the baffle plate (206) has a rectangular structure.

3. The top cover structure of a prefabricated substation according to claim 1, characterized in that: The lower end face of the perforated steel plate (4) is detachably connected to a stainless steel anti-fall mesh plate (5) by bolts.

4. The box-type substation roof structure according to claim 1, characterized in that: The top of the drain pipe (203) is fitted with a stainless steel woven mesh.

5. The top cover structure of a prefabricated substation according to claim 2, characterized in that: There is a gap between the baffle plate (206) and the middle guide cavity (3).

6. The top cover structure of a prefabricated substation according to claim 1, characterized in that: The lower end face of the middle guide cavity (3) is welded with a connecting plate that is welded to the substation.

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