CN219610065U

CN219610065U - High-voltage sleeve

Info

Publication number: CN219610065U
Application number: CN202320592114.4U
Authority: CN
Inventors: 陈培锋; 陈晨; 张峰
Original assignee: Shandong Chifeng Electric Co ltd
Current assignee: Shandong Chifeng Electric Co ltd
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-08-29
Anticipated expiration: 2033-03-23

Abstract

The utility model relates to the technical field of power engineering and discloses a high-voltage sleeve, which comprises a conducting rod and a water flowing pipe, wherein the conducting rod is inserted into a cavity of the water flowing pipe, the two opposite end wall surfaces of the water flowing pipe are fixedly connected with water conveying pipes respectively for water inlet and water outlet, an evacuation component for guiding cooling water and increasing the inner surface area of the water flowing pipe is arranged in the cavity of the water flowing pipe, low-temperature water is conveyed into the water flowing pipe through the water conveying pipe on the left end surface of the water flowing pipe and is discharged through another water conveying pipe, when the cooling water passes through the cavity of the water flowing pipe, the cooling water is blocked through a plurality of partitions, a serpentine bent flowing track is formed when the cooling water is matched with a plurality of partition cavities, so that the retention time of the cooling water in the cavity of the water flowing pipe is increased, the sufficient heat exchange of the water flowing pipe and a cooling medium is ensured, the cooling effect of the water flowing pipe is improved, and meanwhile, the contact area between the water flowing pipe and the cooling water can be increased, and the heat absorption and the cooling of the conducting rod are further promoted.

Description

High-voltage sleeve

Technical Field

The utility model belongs to the technical field of power engineering, and particularly relates to a high-voltage sleeve.

Background

The prior art discloses a conducting rod and a high-voltage sleeve (CN 202111183607.4), which relate to the technical field of high-voltage transmission, wherein the conducting rod is hollow, a channel is formed along the axial direction, a water flow pipe is arranged in the channel, and the extending direction of the water flow pipe is consistent with that of the channel; cooling water flows in the water flow pipe and is used for absorbing heat generated by the conducting rod; a gap is formed between the water flow pipe and the conducting rod, and a liquid insulating medium for transferring heat is filled in the gap;

in the prior art, a water pipe is arranged in a cavity of a conducting rod, cooling of the conducting rod is achieved through the cooperation of an insulating medium between the conducting rod and the outer wall surface of the water pipe and cooling water flowing inside the water pipe, when the cooling water flows through a water pipe cavity, the cooling water is directly discharged out of the water pipe along the radial direction of the water pipe due to a smooth channel inside the water pipe, the contact time and the contact area of the cooling water and the water pipe are limited, the cooling effect on the conducting rod is limited, and certain optimizing space exists.

The present utility model has been made in view of this.

Disclosure of Invention

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:

the utility model provides a high-voltage bushing, includes conducting rod and flow pipe, and the conducting rod inserts the intracavity of flow pipe, forms the intermediate layer space between flow pipe and the conducting rod internal face, and it has cooling medium to pour into in the intermediate layer space, and conducting rod wall fixedly connected with end plate, end plate and conducting rod end face fixed connection and with the port shutoff of conducting rod, the equal fixedly connected with water supply pipe of the both ends wall face that the flow pipe is relative is used for intaking and draining respectively, the intracavity of flow pipe is provided with the evacuation subassembly to cooling water guide and increase flow pipe internal surface area.

As a preferred embodiment of the utility model, the evacuation assembly is a plurality of partitions which are equidistantly arranged in the pipeline cavity, a partition cavity is formed between two adjacent partitions, the wall surface of each partition cavity is provided with the same communication groove, and the partition cavity and the communication groove form a snake-shaped bending channel in the conducting rod cavity.

In a preferred embodiment of the present utility model, the water pipe is a hollow circular pipe, the partition is a circular plate with the same diameter as the inner diameter of the conducting rod cavity, and the partition is fixedly connected with the circumferential surface and the inner wall surface of the water pipe.

In a preferred embodiment of the present utility model, the communicating groove is formed at a circumferential surface of the partition and extends toward a center direction of the partition, the communicating groove is a rectangular plate, a length of the communicating groove is smaller than a radius of the partition, and the communicating grooves of two adjacent partition wall surfaces are arranged in a staggered manner.

As a preferred implementation mode of the utility model, the evacuation component is a plurality of guide plates which are equidistantly arranged in the running water pipe cavity, a return groove is formed between two adjacent guide plates, and the guide plates form a horn-shaped channel in the running water pipe cavity.

As a preferred embodiment of the utility model, the guide plates are funnel-shaped, the running water pipe is a circular pipeline, the outer circumferential surface of the port with larger diameter of each guide plate is fixedly connected with the running water pipe, and the smaller opening of each guide plate is arranged in the same direction.

As a preferred embodiment of the utility model, the smaller opening of the guide plate extends into the larger opening of the adjacent other guide plate, the adjacent two guide plates are not in contact, the smaller opening of the guide plate coincides with the direction of the cooling water flow.

Compared with the prior art, the utility model has the following beneficial effects:

1. the low-temperature water is sent into the water delivery pipe through the water delivery pipe on the left end face of the water delivery pipe and is discharged through the other water delivery pipe, when cooling water passes through the water delivery pipe cavity, the cooling water passes through the blocking of a plurality of partitions, the communicating grooves of the partition walls are matched, when the cooling water flows from the left partition cavity to the other adjacent partition cavity, the cooling water passes through the communicating grooves, because the communicating grooves of the two adjacent partition walls are misplaced, the included angle of the communicating grooves of the two adjacent partition walls is ninety degrees, the cooling water flow track is reversed, a serpentine bending flow track is formed when the cooling water passes through the partition walls, the residence time of the cooling water in the water delivery pipe cavity is prolonged, so that the sufficient heat exchange of the water delivery pipe and a cooling medium is ensured, the cooling effect of the conducting rod is improved, and meanwhile, the heat absorption area of the water delivery pipe and the cooling water can be increased by the plurality of partitions, and the cooling of the conducting rod is further promoted.

2. Cooling water flowing from left to right in the flow pipe cavity is sent into through the water supply pipe, first guide plate is impacted by the cooling water, the cooling water is guided to be conveyed to the larger opening of the other guide plate through the concave surface of the guide plate, and accordingly the cooling water is guided by the guide plate until being conveyed to be discharged by the other water supply pipe, the opening diameters of the smaller diameters of the guide plates are uniformly decreased, the flow rate of the cooling water is gradually increased, a section of channel similar to a Tesla valve is formed by a plurality of guide plates, the contact area of the flow pipe and the cooling water is increased, the retention time of the cooling water is prolonged, the efficiency of the cooling water flowing through the flow pipe cavity can be considered, meanwhile, when the valve is suddenly closed to stop water supply to the water supply pipe, the reverse flow cooling water can be impacted to the left due to the action of water hammer, but the cooling water can enter the return groove to be impacted and be added by the guide plate, the reverse flow resistance of the cooling water is increased, the action of the water hammer is slowed down, the impact and vibration to the water supply pipe are avoided, and the running safety is higher.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

In the drawings:

FIG. 1 is a perspective view of the present utility model;

figure 2 is an exploded view of an evacuation module according to an embodiment of the present utility model;

fig. 3 is an exploded view of a second evacuation structure according to an embodiment of the present utility model.

In the figure: 10. a conductive rod; 11. a water flow pipe; 12. a water supply pipe; 13. an end plate; 20. partition; 21. a compartment; 22. a communication groove; 30. a guide plate; 31. and a return groove.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model.

Embodiment one: 1-2, including conducting rod 10 and water flowing pipe 11, conducting rod 10 inserts into the cavity of water flowing pipe 11, forming the interlining space between water flowing pipe 11 and the inner wall surface of conducting rod 10, injecting cooling medium into interlining space, conducting rod 10 wall surface fixedly connected with end plate 13, end plate 13 fixedly connected with end surface of conducting rod 10 and blocking the port of conducting rod 10, two opposite end wall surfaces of water flowing pipe 11 fixedly connected with water supplying pipe 12 respectively for water intake and drainage, the cavity of water flowing pipe 11 is provided with evacuation components for guiding cooling water and increasing inner surface area of water flowing pipe 11, the evacuation components are a plurality of partitions 20 equidistantly arranged in the cavity of water flowing pipe 11, forming separation cavities 21 between two adjacent partitions 20, the wall surface of each separation cavity 21 is provided with the same communication groove 22, the spacing cavity 21 and the communicating groove 22 form a snake-shaped bending channel in the cavity of the conducting rod 10, the flowing water pipe 11 is a hollow circular pipe, the partition 20 is a circular plate with the same diameter as the cavity of the conducting rod 10, the partition 20 and the circumferential surface are fixedly connected with the inner wall surface of the flowing water pipe 11, the communicating groove 22 is arranged at the circumferential surface position of the partition 20 and extends towards the circle center direction of the partition 20, the communicating groove 22 is a rectangular plate, the length of the communicating groove 22 is smaller than the radius of the partition 20, the communicating grooves 22 of the two adjacent partition 20 wall surfaces are arranged in a staggered way, in the scheme, the cooling medium is injected into the interlayer space of the conducting rod 10 and the flowing water pipe 11 and has good heat conductivity and fluidity, can be used as a heat transfer medium between the conducting rod 10 and the flowing water pipe 11, quickens the heat exchange efficiency between the conducting rod 10 and the flowing water pipe 11, has higher flash point, is not easy to burn, and cannot cause danger of burning due to overhigh temperature, the low-temperature water is sent into the running water pipe 11 through the water sending pipe 12 on the left end face of the running water pipe 11 and is discharged through the other water sending pipe 12, when the cooling water passes through the cavity of the running water pipe 11, the cooling water passes through the blocking of the plurality of partitions 20 and is matched with the communicating groove 22 on the wall face of the partition 20, when the cooling water flows from the partition cavity 21 on the left side to the other adjacent partition cavity 21, the cooling water passes through the communicating groove 22, because the communicating grooves 22 on the wall face of the two adjacent partitions 20 are misplaced, the included angle of the communicating grooves 22 on the wall face of the two adjacent partitions 20 is ninety degrees, the flowing track of the cooling water is reversed, a snakelike bent flowing track is formed when the cooling water passes through the plurality of partition cavities 21, the residence time of the cooling water in the cavity of the running water pipe 11 is increased, so that the sufficient heat exchange between the running water pipe 11 and the cooling medium is ensured, the cooling effect on the conducting rod 10 is improved, and meanwhile, the contact area between the running water pipe 11 and the cooling water can be increased, and the heat absorption and the cooling of the conducting rod 10 are further promoted.

Embodiment two: the high-voltage sleeve, as shown in figures 1 and 3, comprises a conducting rod 10 and a water flowing pipe 11, wherein the conducting rod 10 is inserted into a cavity of the water flowing pipe 11, an interlayer space is formed between the water flowing pipe 11 and the inner wall surface of the conducting rod 10, a cooling medium is injected into the interlayer space, the wall surface of the conducting rod 10 is fixedly connected with an end plate 13, the end plate 13 is fixedly connected with the end surface of the conducting rod 10 and plugs the port of the conducting rod 10, the two opposite end wall surfaces of the water flowing pipe 11 are fixedly connected with water supplying pipes 12 respectively for water inlet and outlet, an evacuation component for guiding cooling water and increasing the inner surface area of the water flowing pipe 11 is arranged in the cavity of the water flowing pipe 11, the evacuation component is a plurality of guide plates 30 which are equidistantly arranged in the cavity of the water flowing pipe 11, a return groove 31 is formed between two adjacent guide plates 30, the guide plates 30 form a horn-shaped channel in the cavity of the water flowing pipe 11, the guide plates 30 are in a funnel shape, in the scheme, as a further optimization, the cooling water fed into the cavity of the water pipe 11 through the water pipe 12 flows from left to right, the cooling water impacts the first guide plate 30, is guided to be conveyed to the larger opening of the other guide plate 30 through the concave surface of the guide plate 30, and is reciprocated in this way, the cooling water is guided by the guide plate 30 until being conveyed to be discharged by the other water pipe 12, and the cooling water flow rate is gradually increased due to the uniform decrease of the diameter of the smaller diameter opening of each guide plate 30, the guide plates 30 form a channel similar to a tesla valve, so that the efficiency of cooling water flowing through the cavity of the water flowing pipe 11 can be considered on the basis of increasing the contact area of the water flowing pipe 11 and cooling water and improving the residence time of the cooling water, meanwhile, when the valve is suddenly closed to stop water supply to the water flowing pipe 12, the reverse cooling water can impact leftwards due to the action of a water hammer, but the cooling water can enter the return groove 31 to impact and be added with the guide plates 30, the reverse resistance of the cooling water is increased, the action of the water hammer is slowed down, the impact and vibration on the conductive rod 10, the water flowing pipe 11 and the water flowing pipe 12 are avoided, and the operation safety is higher.

Working principle: the cooling medium is injected into the interlayer space between the conducting rod 10 and the water flowing pipe 11, has good heat conductivity and fluidity, can be used as a heat transfer medium between the conducting rod 10 and the water flowing pipe 11, quickens the heat exchange efficiency between the conducting rod 10 and the water flowing pipe 11, has higher flash point, is not easy to burn, does not cause danger of burning due to overhigh temperature, sends low-temperature water into the water flowing pipe 11 through the water flowing pipe 12 on the left end surface of the water flowing pipe 11 and discharges the low-temperature water through the other water flowing pipe 12, when the cooling water passes through the cavity of the water flowing pipe 11, the cooling water passes through the blocking of the plurality of partitions 20 and cooperates with the communicating grooves 22 on the wall surfaces of the partitions 20, when the cooling water flows from the left interval cavity 21 to the other adjacent interval 21, the cooling water passes through the communicating grooves 22 on the wall surfaces of the two adjacent partitions 20 are staggered, the included angle between the communicating grooves 22 on the wall surfaces of the two adjacent partitions 20 is ninety degrees, the flow track of the cooling water is reversed, a serpentine-shaped flow track is formed when the cooling water passes through the plurality of spacing spaces 21, or the cooling water fed into the cavity of the flow pipe 11 through the water supply pipe 12 flows from left to right, the cooling water impacts the first guide plate 30 and is guided to be conveyed to the larger opening of the other guide plate 30 through the concave surface of the guide plate 30, and the cooling water is guided by the guide plate 30 until being conveyed to be discharged by the other water supply pipe 12 in a reciprocating manner, because the opening diameters of the smaller diameters of the guide plates 30 are uniformly reduced, the flow speed of the cooling water is gradually increased, the plurality of guide plates 30 form a channel similar to a Tesla valve, the efficiency of the cooling water flowing through the cavity of the flow pipe 11 can be considered on the basis of increasing the contact area of the flow pipe 11 and the cooling water and improving the retention time of the cooling water, and simultaneously, when the cooling water is stopped from being conveyed to the water supply pipe 12 by suddenly closing the valve, the back flow of cooling water can be impacted leftwards by the action of the water hammer, but the cooling water can enter the return groove 31 to be impacted and is guided by the guide plate 30, so that the back flow resistance of the cooling water is increased.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a high-voltage bushing, including conducting rod (10) and flow pipe (11), the intracavity of conducting rod (10) inserted flow pipe (11), form the intermediate layer space between flow pipe (11) and conducting rod (10) internal face, the intussuseption of intermediate layer space is gone into and is had coolant, conducting rod (10) wall fixedly connected with end plate (13), end plate (13) and conducting rod (10) terminal surface fixedly connected with and with the port shutoff of conducting rod (10), the equal fixedly connected with flow pipe (12) of the both ends wall that flow pipe (11) are relative are used for intaking the drainage respectively, a serial communication port, the intracavity of flow pipe (11) is provided with the evacuation subassembly to cooling water guide and increase flow pipe (11) internal surface area.

2. The high-voltage bushing according to claim 1, characterized in that the evacuation assembly is a plurality of partitions (20) equidistantly arranged in the cavity of the water pipe (11), a partition space (21) is formed between two adjacent partitions (20), the same communication groove (22) is formed in the wall surface of each partition space (21), and the partition space (21) and the communication groove (22) form a serpentine bending channel in the cavity of the conducting rod (10).

3. The high-voltage bushing according to claim 2, wherein the water flowing pipe (11) is a hollow circular pipe, the partition (20) is a circular plate with the same diameter as the cavity of the conducting rod (10), and the partition (20) is fixedly connected with the circumferential surface and the inner wall surface of the water flowing pipe (11).

4. The high-voltage bushing according to claim 2, wherein the communication groove (22) is formed in a circumferential surface position of the partition (20) and extends toward a center direction of the partition (20), the communication groove (22) is a rectangular plate, a length of the communication groove (22) is smaller than a radius of the partition (20), and the communication grooves (22) on wall surfaces of two adjacent partitions (20) are arranged in a staggered manner.

5. The high-voltage sleeve according to claim 1, characterized in that the evacuation assembly is a plurality of guide plates (30) equidistantly arranged in the cavity of the water pipe (11), a return groove (31) is formed between two adjacent guide plates (30), and the guide plates (30) form a horn-shaped channel in the cavity of the water pipe (11).

6. The high-voltage bushing according to claim 5, characterized in that the guide plates (30) are funnel-shaped, the water flowing pipe (11) is a circular pipe, the outer circumferential surface of the port with the larger diameter of the guide plates (30) is fixedly connected with the water flowing pipe (11), and the smaller opening of each guide plate (30) is arranged in the same direction.

7. The high-voltage bushing according to claim 5, characterized in that the smaller opening of the guide plate (30) extends into the larger opening of the adjacent other guide plate (30), that the adjacent two guide plates (30) are not in contact, and that the smaller opening of the guide plate (30) coincides with the direction of the cooling water flow.