CN106448819B - A kind of tubular conductive part and the conductive equipment using the tubular conductive part - Google Patents

Abstract

The invention relates to a tubular conductive part and conductive equipment using the tubular conductive part. The tubular conductive part includes a tube body, and the two ends of the tube body are provided for sealing the inner hole of the tube body so that the inner hole of the tube body is closed. A blanking plate that isolates the internal air chamber of the equipment into which the tubular conductor is fitted. The blocking plate is used to block the inner orifices at both ends of the pipe body, so that the inner hole of the pipe body forms an independent closed space and is isolated from the internal air chamber of the equipment for the assembly of the tubular conductive parts, avoiding the internal airflow of the tubular conductive parts. Uncleaned residual metal foreign matter, moisture, and metal foreign matter in the manufacturing process are mixed into the insulating medium in the air chamber to cause discharge. At the same time, the process of cleaning the inner wall of the tubular conductive part is omitted, reducing the Reduce labor intensity, shorten product assembly cycle, and greatly improve work efficiency.

Description

A tubular conductive part and conductive equipment using the tubular conductive part

technical field

The invention belongs to the field of high-voltage electrical equipment, and in particular relates to a tubular conductive part and conductive equipment using the tubular conductive part.

Background technique

Aluminum alloy and copper alloy conductive rods assembled in gas-insulated metal-enclosed conductive equipment generally adopt hollow tubular conductive parts. The tubular conductive parts include conductive tubes and tubular tubular joints at both ends of the conductive tubes. Shaped conductive parts must meet the requirements of surface roughness polished to 6.3 or more and the inner and outer surfaces are clean and free of foreign matter, so as to ensure that the equipment can be successfully put into use at one time, and avoid discharge failure after long-term operation of the equipment. However, in actual production, fine metal shavings and other foreign matter are easily mixed inside the tubular conductive parts during the welding forming and polishing manufacturing process. Due to the narrow and long inner diameter space, it is difficult to clean. And in the course of work, if metal shavings or other foreign matters inside the conductive rod are mixed into the insulating medium of the inner air chamber of the equipment equipped with the conductive rod, it is easy to cause a discharge accident, and there is a huge potential safety hazard.

Contents of the invention

The purpose of the present invention is to provide a tubular conductive member to solve the problem of discharge accidents caused by the foreign matter inside the conductive tube being easily mixed into the internal air chamber of the equipment for which it is assembled; at the same time, the purpose of the present invention is also The purpose is to provide a conductive device using the tubular conductive member.

In order to achieve the above object, the technical solution of a tubular conductive part of the present invention is: a tubular conductive part, comprising a tube body, the two ends of the tube body are provided with inner holes for sealing the tube body so that the tube A blocking plate that isolates the inner hole of the body from the internal air chamber of the equipment where the tubular conductive member is assembled.

The pipe body includes a conductive pipe and a tubular joint arranged at at least one end of the conductive pipe, and a blocking plate is arranged at a welding position between the conductive pipe and the corresponding tubular joint.

The tubular joint includes a first tubular joint arranged at one end of the conductive pipe and a second tubular joint disposed at the other end of the conductive pipe, the first tubular joint is a female head, and the second tubular joint is a male head.

The tubular joint includes a first tubular joint disposed at one end of the conductive pipe and a second tubular joint disposed at the other end of the conductive pipe, both of the first tubular joint and the second tubular joint are male, or Both the first tubular joint and the second tubular joint are female.

The end of the conductive pipe is provided with an annular conductive pipe spigot, and the corresponding end of the corresponding tubular joint is provided with an annular tubular joint spigot, and the conductive pipe spigot and the corresponding tubular joint spigot are used for An annular groove for fitting the blocking plate.

The sum of the lengths of the conductive tube spigot and the corresponding tubular joint spigot along the axial direction of the conductive rod is not greater than the thickness of the blocking plate.

Grooves are provided on the outer wall of the end of the conductive pipe spigot and the outer wall of the corresponding tubular joint, and the grooves together form a V-shaped welding groove.

An annular groove is provided at the tip of the V-shaped welding groove on the outer circular surface of the blocking plate.

A technical solution of a conductive device is: a conductive device, comprising a casing and one or more than two tubular conductive elements connected head to tail arranged inside the casing, the tubular conductive elements adopt the above-mentioned tubular conductors.

The beneficial effects of the present invention are: the blocking plate is used to block the inner orifices at both ends of the pipe body, so that the inner hole of the pipe body forms an independent closed space and is isolated from the internal air chamber of the equipment for the assembly of the tubular conductive member. It avoids the problem that the uncleaned residual metal foreign matter, moisture and metal foreign matter in the manufacturing process inside the tubular conductive part are mixed into the insulating medium in the air chamber to cause discharge, and at the same time, the inner wall of the tubular conductive part is omitted. The cleaning process reduces the labor intensity, shortens the product assembly cycle, greatly improves the work efficiency, and simplifies the process, avoiding the problems of complex process and high production cost caused by the use of solid joints to block the conductive tube in the prior art.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of a conductive device of the present invention;

Fig. 2 is a schematic structural view of an embodiment of a tubular conductive member of the present invention;

Fig. 3 is the structural representation of the first tubular joint;

Fig. 4 is the structural representation of the second tubular joint;

Fig. 5 is the structural representation of blocking plate;

Fig. 6 is the structural representation of conductive tube;

FIG. 7 is a partial enlarged view of A in FIG. 2 .

Detailed ways

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings. A specific embodiment of a conductive device of the present invention, as shown in Figures 1 to 7, includes a housing 14 and a plurality of head-to-tail connected tubular conductive members arranged in the housing 14, one of which is taken as an example To describe in detail, the tubular conductive member includes a tubular body, and the tubular body includes a conductive tube 1, a first tubular joint 2 arranged at one end of the conductive tube 1, and a second tubular joint 3 arranged at the other end of the conductive tube 1. Blocking plates are arranged between the pipe 1 and each tubular joint to block the inner holes at both ends of the conductive pipe 1 so that the inner holes of the conductive pipe 1 form an independent closed space and the air for the equipment assembled with the tubular conductive parts. Chamber 15 is isolated. The blocking plate includes a first blocking plate 6 arranged between one end of the conductive pipe 1 and the first tubular joint 2 and a second blocking plate 7 arranged between the other end of the conductive pipe 1 and the second tubular joint 3. The first blocking plate 6 and the second blocking plate 7 have the same structure and size, and are all circular plate structures.

Both ends of the conductive pipe 1 are provided with an annular conductive pipe stop 11, and the first tubular joint 2 is provided with a first tubular joint stop 9 corresponding to the corresponding conductive pipe stop 11, and the first tubular joint The notch 9 and the corresponding conductive tube notch 11 form the first annular groove for the first blocking plate 6 to be matched and installed, and the length of the first tubular joint notch 9 along the axial direction of the tubular conductive member and the corresponding conductive tube The sum of the lengths of the spigot 11 along the axial direction of the tubular conductive member is less than the thickness of the first blocking plate 6, that is, when the first tubular joint spigot 9 is docked with the corresponding conductive tube spigot 11, both exist Clearance, to ensure that part of the welding material is in contact with the first blocking plate 6 during welding, to ensure that the first tubular joint 2, the first blocking plate 6 and the conductive tube 1 can be more firmly connected, and the first tubular joint seam 9 The outer wall of the end is provided with a groove opposite to the outer wall of the end of the corresponding conductive pipe 11, and the groove together forms a V-shaped welding groove 13 with the tip facing the inside of the tubular conductive member. The first blocking plate 6 An annular groove 12 is provided at the V-shaped welding bevel 13 on the outer circular surface of the outer circle, which can ensure that the two ends of the first blocking plate 6 and the first tubular joint notch 9 and the corresponding conductive tube notch 11 are aligned along the tubular shape. The bottom surface of the conductive part in the axial direction is fully contacted during riveting to ensure the welding strength and avoid stress concentration. At the same time, it is beneficial to form a welding pool, so that the root of the V-shaped welding groove 13 is fully fused, and further ensures that the first blocking plate 6 and The welding between the first tubular joint 2 and the conductive pipe 1 is more firm. The plate thickness of the first blocking plate 6 is greater than the length of the first pipe joint spigot 9 along the axial direction of the tubular conductive member and the length of the corresponding conductive pipe spigot 11 along the axial direction of the tubular conductive member The sum is used to avoid the problem of new foreign matter residue caused by the seepage of welding flash.

The second pipe joint 3 is provided with a second pipe joint seam 10 corresponding to the corresponding conductive pipe seam 11. The second pipe joint seam 10 and the corresponding electric pipe seam 11 form a second blocking plate 7. The sum of the length of the second tubular joint spigot 10 along the axial direction of the tubular conductive member and the length of the corresponding conductive tube spigot 11 along the axial direction of the tubular conductive member Slightly smaller than the plate thickness of the second blocking plate 7, that is, there is a gap between the second tubular joint spigot 10 and the corresponding conductive pipe spigot 11 when they are docked, so that part of the welding material is in contact with the second blocking plate 7 during welding , to facilitate the formation of a welding pool, so that the root of the welding groove 13 is fully fused, ensuring that the second tubular joint 3, the second blocking plate 7 and the conductive pipe 1 can be more firmly connected during welding, and the second tubular joint only The outer wall of the end of the port 10 is opposite to the outer wall of the end of the corresponding conductive pipe 11. The grooves together form a V-shaped welding groove with the tip facing the inside of the tubular conductive member. The second blocking plate 7 Annular grooves are arranged at the V-shaped welding groove on the outer circular surface of the second blocking plate 7, which can ensure that the two ends of the second blocking plate 7 are connected with the second pipe joint spigot 10 and the corresponding conductive pipe spigot 11 along the tubular conductive member. The bottom surface in the direction of the axial direction is fully contacted during riveting to ensure the welding strength and avoid stress concentration. At the same time, it is beneficial to form a welding pool, so that the roots of the welding groove 13 are fully fused, and further ensure that the second blocking plate 7 and the second tubular shape The joint 3 and the conductive pipe 1 are welded more firmly. The plate thickness of the second blocking plate 7 is greater than the length of the second pipe joint spigot 10 along the axial direction of the tubular conductive member and the length of the corresponding conductive pipe spigot 11 along the axial direction of the tubular conductive member The sum is used to avoid the problem of new foreign matter residue caused by the seepage of welding flash.

The inner hole 4 of the first tubular joint 2 forms a socket, the first tubular joint 2 forms a female head, and the second tubular joint 3 has a first tubular joint for connecting with another tubular conductive member 16. The socket of the joint 17 is mated with the conductive insertion section 5, and the second tubular joint 3 forms a male head, and the two tubular conductive parts are plugged together end to end in this way.

The welding process of the tubular conductive part of the present invention is as follows: on the mounting platform, the first tubular joint 2, the second tubular joint 3, the first blocking plate 6, the second blocking plate 7 and the conductive pipe are riveted 1. The position is fixed to ensure the tolerance requirements of the total length, straightness and coaxiality. At each V-shaped welding groove 13, it is grounded by MIG welding, filled, and then covered by MIG welding, and the first tubular joint 2, The second tubular joint 3, the first blocking plate 6, the second blocking plate 7 and the conductive tube 1 are welded together to form an independent airtight space inside the conductive tube 1, avoiding the mixing of residual foreign matter that has not been cleaned up and foreign matter during the manufacturing process In the air chamber 15, it is completely avoided that the foreign matter and moisture in the conductive tube 1 are mixed into the insulating medium in the assembled air chamber 15 after assembly to cause a discharge accident. During the entire manufacturing, storage and transportation process, foreign matter from the outside cannot enter the inside of the conductive tube 1, and the residual foreign matter and moisture inside the original conductive tube 1 will not come out again, thus avoiding cleaning the inside of the conductive tube 1 before assembly. Wiping simplifies the cleaning process, reduces the cost of protection in the manufacturing process, reduces the labor intensity of cleaning before assembly and the risk of foreign matter residue, reduces the labor intensity of assemblers, and shortens the product assembly cycle.

In other embodiments of the present invention, only one tubular conductive member may be provided in the conductive device, and at this time, both ends of the conductive tube may also be provided with female tubular joints or male tubular joints and their The assembled male and female contact seats are used together; only one tubular conductive part can be set in the conductive device, and at this time, only one tubular joint can be set on the conductive tube, and the other end is closed; three conductive parts can also be set in the conductive device. The above tubular conductive parts; under the requirement that the tubular joints of each conductive pipe can be plugged in, the blocking plate can also be arranged on the tubular joint to block the inner hole of the tubular joint; the conductive pipe stop and the corresponding The sum of the lengths of the pipe joint spigot along the axial direction of the conductive rod can also be equal to the thickness of the blocking plate; the outer circular surface of the blocking plate may not be provided with an annular groove; The end of the pipe joint and the end of the pipe joint are not provided with a spigot structure, and they are directly butt-jointed for welding; the pipe body may not include a pipe joint, and at this time the conductive pipe forms a pipe body.

An embodiment of a tubular conductive member is the same as the embodiment of the tubular conductive member in each embodiment of the above-mentioned conductive device, and will not be repeated here.

Claims (7)

1. A tubular conductive member, comprising a tubular body, characterized in that: the two ends of the tubular body are provided with an inner hole for blocking the tubular body so that the inner hole of the tubular body and the assembly equipment for the tubular conductive member The blocking plate is isolated from the internal air chamber of the tube, the tube body includes a conductive tube and a tubular joint arranged at at least one end of the conductive tube, the blocking plate is arranged at the welding position of the conductive tube and the corresponding tubular joint, and the conductive tube The end is provided with an annular conductive tube spigot, and the corresponding end of the corresponding tubular joint is provided with an annular tubular joint spigot, and the conductive tube spigot and the corresponding tubular joint spigot are used to fit the blocking plate together. into the ring groove. 2. A tubular conductive member according to claim 1, characterized in that: said tubular joint comprises a first tubular joint disposed at one end of the conductive pipe and a second tubular joint disposed at the other end of the conductive pipe , the first pipe joint is a female head, and the second pipe joint is a male head. 3. A tubular conductive member according to claim 1, characterized in that: said tubular joint comprises a first tubular joint disposed at one end of the conductive pipe and a second tubular joint disposed at the other end of the conductive pipe , both the first tubular joint and the second tubular joint are male, or both the first tubular joint and the second tubular joint are female. 4. A tubular conductive member according to claim 1, characterized in that: the sum of the lengths of the conductive pipe spigot and the corresponding tubular joint spigot along the axis of the conductive rod is not greater than the thickness of the blocking plate . 5. A tubular conductive member according to claim 1, characterized in that: the outer wall of the end of the conductive tube spigot is oppositely provided with a groove on the outer wall of the end of the corresponding tubular joint, each The grooves together form a V-shaped welding groove. 6 . A tubular conductive member according to claim 5 , wherein an annular groove is provided on the outer circular surface of the blocking plate at the tip of the V-shaped welding groove. 7 . 7. A conductive device, comprising a shell and one or more than two tubular conductive elements connected head to tail arranged inside the shell, characterized in that: the tubular conductive element adopts the above-mentioned claims 1-6 The tubular conductive member described in any one.