Shielding cover for extra-high voltage GIL power transmission line

Abstract

The utility model discloses a shielding case for an extra-high voltage GIL power transmission line, and relates to the technical field of power transmission. Comprising a fixed cover; the outer wall of the mounting assembly is in sliding connection with the inner wall of the fixing cover, and the mounting assembly is used for fixing the power transmission line in a wrapping mode; the outer wall of the heat dissipation assembly is fixedly connected with the inner wall of the mounting assembly, and the heat dissipation assembly is used for reducing the temperature of the shielding cover by increasing the contact area with air; according to the invention, the installation assembly is arranged, the unique design of the installation assembly enables the installation process of the shielding cover to be simple and easy, and an operator can install the shielding cover on a power transmission line only through several simple steps through the rotation operation of the rotating cover along the slip ring and the cooperation of the rotating cover and the fixed cover. The purpose of the shielding case for the extra-high voltage GIL power transmission line is achieved.

Description

Technical Field

[0001] This utility model relates to the field of power transmission technology, specifically to a shielding cover for ultra-high voltage GIL transmission lines. Background Technology

[0002] With the rapid development of the power industry, ultra-high voltage GIL (gas-insulated metal-enclosed transmission line) transmission technology has been increasingly widely used in the field of long-distance, large-capacity power transmission due to its many advantages such as large transmission capacity, small footprint, and minimal environmental impact.

[0003] The construction of ultra-high voltage GIL transmission lines involves long-distance and large-scale line laying, which means that a large number of shielding cover devices need to be installed. Traditional shielding cover installation methods are usually quite complicated, mostly relying on numerous bolts, nuts and other connecting parts for fastening. This installation method not only requires construction personnel to be equipped with a variety of professional tools, but also involves cumbersome installation steps, consuming a lot of time and manpower. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: a shielding cover for ultra-high voltage GIL transmission lines, comprising: a fixed cover; an installation component, the outer wall of which is slidably connected to the inner wall of the fixed cover, the installation component being used to fix the transmission line by wrapping; a heat dissipation component, the outer wall of which is fixedly connected to the inner wall of the installation component, the heat dissipation component being used to reduce the temperature of the shielding cover by increasing the contact area with air; the installation component includes a rotating cover, the inner wall of which is slidably connected to a slip ring via a limiting groove, and the inner walls on both sides of the rotating cover are engaged with locking blocks; the fixed cover and the sliding cover are made of fiber-reinforced resin-based composite material.

[0005] Preferably, the wall of the fixed cover is provided with honeycomb grooves, and the honeycomb grooves are arranged in a ring along the central axis of the fixed cover, and the outer wall of the rotating cover is slidably connected to the inner wall of the fixed cover.

[0006] Preferably, the outer wall of the slip ring is fixedly connected to the inner wall of the fixing cover, the outer walls on both sides of the fixing cover are fixedly connected to the outer wall of the locking block, and the slip ring is made of fiber-reinforced resin-based composite material.

[0007] Preferably, the heat dissipation component includes a heat dissipation plate made of alumina ceramic material. Heat dissipation fins are fixedly connected to the outer wall of the heat dissipation plate and are arranged in a linear array along the outer wall of the heat dissipation plate. A honeycomb plate is fixedly connected to the outer wall of the heat dissipation plate through a connecting post, and the outer wall of the connecting post is fixedly connected to the outer wall of the honeycomb plate.

[0008] Preferably, the side of the connecting post away from the honeycomb plate is fixedly connected to the outer wall of the heat sink plate, and the heat sink fins are provided with air guide grooves in the wall, and the air guide grooves are arranged in a ring along the outer wall of the heat sink fins.

[0009] Preferably, the outer wall of the connecting column is fixedly connected to the inner wall of the fixed cover, the connecting column is arranged in a ring along the central axis of the fixed cover, and the side of the fixed cover away from the rotating cover is fixedly connected to the outer wall of the heat sink.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model, through the setting of installation components, has a unique design that makes the installation process of the shielding cover simple and easy. By rotating the cover along the slip ring and cooperating with the fixed cover, the operator can install the shielding cover onto the transmission line in just a few simple steps, without the need for complicated tools or professional skills. This shortens the installation time and improves the construction efficiency in the construction of UHV GIL transmission lines. Especially in the construction of long-distance, large-scale lines, the advantages of this convenient installation method are even more significant.

[0012] 2. This utility model, by setting up a heat dissipation component, has multiple components such as heat dissipation plate, heat dissipation fins, air guide grooves and honeycomb plate working together to form a heat dissipation system. The heat dissipation fins can quickly transfer heat to the surrounding air by increasing the contact area with the air. The air guide grooves further guide the airflow to accelerate heat exchange. The honeycomb plate continuously enhances the heat dissipation effect with its large specific surface area. The components complement each other and solve the problem of heat accumulation caused by electromagnetic factors during the operation of the shielding cover, ensuring that the shielding cover can work stably within a suitable temperature range. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention;

[0014] Figure 2 This is a cross-sectional view of the present invention;

[0015] Figure 3 This is a schematic diagram of the installation component of this utility model;

[0016] Figure 4 This is a schematic diagram of the heat dissipation component of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the honeycomb panel of this utility model.

[0018] In the diagram: 1. Fixed cover; 2. Mounting assembly; 3. Heat dissipation assembly; 21. Rotating cover; 22. Limiting groove; 23. Slip ring; 24. Locking block; 25. Honeycomb groove; 31. Heat dissipation plate; 32. Heat dissipation fins; 33. Air guide duct; 34. Honeycomb panel; 35. Connecting column. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0020] Example:

[0021] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a shielding cover for ultra-high voltage GIL transmission lines, comprising: a fixed cover 1; an installation component 2, the outer wall of which is slidably connected to the inner wall of the fixed cover 1, the installation component 2 being used to fix the transmission line by wrapping it; a heat dissipation component 3, the outer wall of which is fixedly connected to the inner wall of the installation component 2, the heat dissipation component 3 being used to reduce the temperature of the shielding cover by increasing the contact area with air; the installation component 2 includes a rotating cover 21, the inner wall of which is slidably connected to a slip ring 23 via a limiting groove 22, and the inner walls on both sides of the rotating cover 21 are engaged with locking blocks 24. The operator first rotates the rotating cover 21 along the slip ring 23 onto the fixed cover 1, so that the fixed cover 1 and the rotating cover 21 overlap, and then aligns the openings of the fixed cover 1 and the rotating cover 21 with the transmission line. After the transmission line is inside the rotating cover 21 and the fixed cover 1, the rotating cover 21 is rotated in the opposite direction, so that the rotating cover 21 and the fixed cover 1 wrap around the transmission line.

[0022] The wall of the fixed cover 1 is provided with honeycomb grooves 25, and the honeycomb grooves 25 are arranged in a ring along the central axis of the fixed cover 1. The outer wall of the rotating cover 21 is slidably connected to the inner wall of the fixed cover 1, the outer wall of the slip ring 23 is fixedly connected to the inner wall of the fixed cover 1, and the outer walls on both sides of the fixed cover 1 are fixedly connected to the outer walls of the locking blocks 24. The presence of the honeycomb grooves 25 has multiple functions. On the one hand, it can reduce the overall weight of the fixed cover 1 to a certain extent, which facilitates the transportation and installation of the shielding cover. On the other hand, from the perspective of electromagnetic shielding, the honeycomb structure can change the propagation path of electromagnetic waves on the surface of the fixed cover 1, and enhance the shielding effect of electromagnetic waves through multiple reflections and refractions.

[0023] The heat dissipation assembly 3 includes a heat dissipation plate 31. Heat dissipation fins 32 are fixedly connected to the outer wall of the heat dissipation plate 31, and the heat dissipation fins 32 are arranged linearly along the outer wall of the heat dissipation plate 31. A honeycomb plate 34 is fixedly connected to the outer wall of the heat dissipation plate 31 via a connecting post 35, and the outer wall of the connecting post 35 is fixedly connected to the outer wall of the honeycomb plate 34. The side of the connecting post 35 away from the honeycomb plate 34 is fixedly connected to the outer wall of the heat dissipation plate 31. Air guide grooves 33 are formed in the walls of the heat dissipation fins 32, and the air guide grooves 33 are arranged in a ring along the outer wall of the heat dissipation fins 32. The outer wall of the connecting post 35... The heat sink fins 32 are fixedly connected to the inner wall of the fixed cover 1. The side of the fixed cover 1 away from the rotating cover 21 is fixedly connected to the outer wall of the heat sink 31. The heat sink fins 32 increase the contact area with the air, so that heat can be transferred to the surrounding air more quickly. Moreover, the heat sink fins 32 have a ring array of air guide grooves 33 in their walls. When the outside air flows, such as natural wind or airflow generated by the operation of the equipment, the air guide grooves 33 can guide the air to flow in its direction, further accelerating the heat exchange speed between the air and the heat sink fins 32 and improving the heat dissipation efficiency.

[0024] Working principle:

[0025] The shielding cover mainly consists of a fixed cover 1, an mounting component 2, and a heat dissipation component 3. The fixed cover 1, as the outer structure of the entire shielding cover, provides a stable support frame for the internal components and also participates in the shielding and protection of the transmission line. The mounting component 2 plays a key role in directly contacting and fixing the transmission line. It works in conjunction with the fixed cover 1 through a specific connection method to ensure that the transmission line is securely wrapped and that the relative position between the shielding cover and the transmission line is stable. The heat dissipation component 3 is located inside the mounting component 2 and is also fixedly connected to the fixed cover 1. It aims to solve the problem of heat accumulation caused by electromagnetic factors during the operation of the shielding cover. Through a clever structural design, it increases the contact area with air, thereby achieving the purpose of reducing the temperature of the shielding cover.

[0026] The core components of the mounting assembly 2 include a rotating cover 21, a limiting groove 22, a slip ring 23, and a locking block 24. The rotating cover 21, as the part that directly acts on the transmission line, has its inner wall slidably connected to the slip ring 23 through the limiting groove 22. This sliding connection gives the rotating cover 21 a certain degree of flexibility, allowing it to rotate and adjust relative to the slip ring 23 within a certain range. In the actual installation process, when the shielding cover needs to be installed on the transmission line, the operator first rotates the rotating cover 21 along the slip ring 23 onto the fixed cover 1, so that the fixed cover 1 overlaps with the rotating cover 21. Then, the openings of the fixed cover 1 and the rotating cover 21 are aligned with the transmission line. After the transmission line is inside the rotating cover 21 and the fixed cover 1, the rotating cover 21 is rotated in the opposite direction, so that the rotating cover 21 and the fixed cover 1 wrap around the transmission line. After the locking block 24 on the fixed cover 1 is engaged in the locking groove on the rotating cover 21, the installation of the shielding cover onto the transmission line is completed.

[0027] The fixed cover 1 has honeycomb grooves 25 in its wall. These honeycomb grooves 25 are arranged in a circular array along the central axis of the fixed cover 1. The presence of the honeycomb grooves 25 has multiple functions. On the one hand, it can reduce the overall weight of the fixed cover 1 to a certain extent, which facilitates the transportation and installation of the shielding cover. On the other hand, from the perspective of electromagnetic shielding, the honeycomb structure can change the propagation path of electromagnetic waves on the surface of the fixed cover 1. Through multiple reflections and refractions, it can enhance the shielding effect of electromagnetic waves, so as to better block the electromagnetic interference generated by the UHV transmission line and protect the surrounding environment and other equipment from electromagnetic influence. At the same time, the structure of the honeycomb grooves 25 also helps to assist the heat dissipation component 3 in the heat dissipation process, thereby improving the heat dissipation efficiency of the entire shielding cover.

[0028] The heat dissipation component 3 mainly consists of a heat dissipation plate 31, heat dissipation fins 32, air guide grooves 33, a honeycomb plate 34, and connecting posts 35. The heat dissipation plate 31 serves as the basic component for heat dissipation, and its outer wall is fixedly connected with heat dissipation fins 32 arranged in a linear array. When the shielding cover generates heat due to electromagnetic effects during operation, the heat will be conducted to the heat dissipation plate 31 and then dissipated outward through the heat dissipation fins 32. By increasing the contact area with the air, the heat dissipation fins 32 can transfer heat to the surrounding air more quickly. In addition, the heat dissipation fins 32 have annularly arranged air guide grooves 33 in their walls. When the outside air flows, such as natural wind or airflow generated by the operation of the equipment, the air guide grooves 33 can guide the air to flow in their direction, further accelerating the heat exchange speed between the air and the heat dissipation fins 32 and improving the heat dissipation efficiency.

[0029] In addition, the heat sink 31 is also fixedly connected to the honeycomb panel 34 through the connecting post 35. The two ends of the connecting post 35 are firmly connected to the outer walls of the heat sink 31 and the honeycomb panel 34 respectively. At the same time, the outer wall of the connecting post 35 is also fixedly connected to the inner wall of the fixing cover 1. This makes the honeycomb panel 34, the heat sink 31 and the fixing cover 1 form a stable structural whole. The honeycomb panel 34 itself has a large specific surface area, which can also increase the contact area with air. During the heat dissipation process, heat is conducted from the transmission line to the mounting component 2, and then to the heat dissipation component 3 connected to it. Finally, through the heat dissipation fins 32, the honeycomb panel 34 and other structures, sufficient heat exchange is carried out with the outside air, thereby achieving the purpose of reducing the temperature of the shielding cover and ensuring that the shielding cover can stably and reliably perform electromagnetic shielding and other functions in the operating environment of the UHV GIL transmission line.

[0030] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A shielding cover for ultra-high voltage GIL transmission lines, characterized in that, include: Fixed cover (1); Mounting component (2), the outer wall of which is slidably connected to the inner wall of the fixing cover (1), the mounting component (2) is used to fix the power transmission line by wrapping; Heat dissipation component (3), the outer wall of which is fixedly connected to the inner wall of mounting component (2), the heat dissipation component (3) is used to reduce the temperature of shield by increasing the contact area with air; The mounting assembly (2) includes a rotating cover (21), the inner wall of the rotating cover (21) is slidably connected to a slip ring (23) through a limiting groove (22), and the inner walls on both sides of the rotating cover (21) are engaged with locking blocks (24).

2. The shielding cover for an ultra-high voltage GIL transmission line according to claim 1, characterized in that: The wall of the fixed cover (1) is provided with honeycomb grooves (25), and the honeycomb grooves (25) are arranged in a ring along the central axis of the fixed cover (1). The outer wall of the rotating cover (21) is slidably connected to the inner wall of the fixed cover (1).

3. A shielding cover for an ultra-high voltage GIL transmission line according to claim 1, characterized in that: The outer wall of the slip ring (23) is fixedly connected to the inner wall of the fixed cover (1), and the outer walls on both sides of the fixed cover (1) are fixedly connected to the outer walls of the locking block (24).

4. A shielding cover for an ultra-high voltage GIL transmission line according to claim 1, characterized in that: The heat dissipation assembly (3) includes a heat dissipation plate (31), and heat dissipation fins (32) are fixedly connected to the outer wall of the heat dissipation plate (31). The heat dissipation fins (32) are arranged in a linear array along the outer wall of the heat dissipation plate (31). A honeycomb plate (34) is fixedly connected to the outer wall of the heat dissipation plate (31) through a connecting post (35), and the outer wall of the connecting post (35) is fixedly connected to the outer wall of the honeycomb plate (34).

5. A shielding cover for an ultra-high voltage GIL transmission line according to claim 4, characterized in that: The connecting column (35) is fixedly connected to the outer wall of the heat sink (31) on the side away from the honeycomb plate (34). The heat sink fins (32) have air guide grooves (33) in the wall, and the air guide grooves (33) are arranged in a ring along the outer wall of the heat sink fins (32).

6. A shielding cover for an ultra-high voltage GIL transmission line according to claim 4, characterized in that: The outer wall of the connecting column (35) is fixedly connected to the inner wall of the fixed cover (1), and the side of the fixed cover (1) away from the rotating cover (21) is fixedly connected to the outer wall of the heat sink (31).

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