CN208848729U

CN208848729U - An improved structure of an oil-immersed transformer oil monitoring lead-out device

Info

Publication number: CN208848729U
Application number: CN201821659098.1U
Authority: CN
Inventors: 吴忠平; 吕波; 李�杰; 夏一菲; 万毅; 李宜彬; 冷升; 杨伟; 刘飞
Original assignee: Suizhou Power Co Ltd Hubei Power Co Ltd; State Grid Corp of China SGCC
Current assignee: Suizhou Power Co Ltd Hubei Power Co Ltd; State Grid Corp of China SGCC
Priority date: 2018-10-13
Filing date: 2018-10-13
Publication date: 2019-05-10
Anticipated expiration: 2028-10-13

Abstract

The utility model relates to technical field of electric power, more particularly, to a kind of improvement structure of oil-immersed transformer oil monitoring ejector, including transformer lateral wall, the first binding post, the second binding post, first binding post and the second binding post are all to stretch out transformer lateral wall, and the first binding post is parallel to each other with the second binding post and does not contact；It is characterized by: the improvement structure of the oil-immersed transformer oil monitoring ejector also has lead end cap, cover board, terminal box, connecting cavity, attaching nut, interior fixation hole, outer fixation hole, first sleeve, the first seal assembly, the second casing, the first washer, the first nut, the first conducting rod, third casing, the second seal assembly, Quadruplet pipe, second packing ring, the second nut, the second conducting rod.The utility model mainly has following advantageous effects: monitoring line dismounting is more convenient, working efficiency is higher, the risk of oil leak will not occur, and transformer is more safe and reliable.

Description

A kind of improvement structure of oil-immersed transformer oil monitoring ejector

Technical field

The utility model relates to technical field of electric power, more particularly, to a kind of oil-immersed transformer oil monitoring ejector Improve structure.

Background technique

At present in terms of oil-immersed transformer oil monitoring, arranged strictly to implement the Guo Wang company great anti-accident of 18 power grids The requirement applied, the monitoring of oil-immersed transformer oil need leading-out terminal, facilitate the requirement of on-line monitoring.But because of the transformer of situ part Date of manufacture is more early, these are not easy to the transformer oil of on-line monitoring for ejector, has been unable to meet the requirement of operation of power networks.

Oily monitoring unit such as Fig. 1 of oil-immersed transformer in the prior art, figure label 95 are transformer lateral wall, are stretched out The lateral wall is the first binding post 811 and the second binding post 821, and the first binding post 811 is mutual not phase with the second binding post 821 Even, certainly, in order to make the first binding post 811 and the second binding post 821 be pierced by lateral wall, there is fairlead on lateral wall, the One binding post 811 and the second binding post 821 are used to monitor the electrical characteristics of the oil of inside transformer；The oil of inside transformer is in addition to seeing Outside oil ga(u)ge, also need to carry out periodic monitoring；In order to reach periodic monitoring, therefore connect on the first binding post 811 and the second binding post 821 Lead-out wire test when necessarily remove, due to continually twist with take, can make the first binding post and the second binding post loosening, make At the decline of sealing performance between transformer lateral wall, or even will cause the leakage of oil, serious person causes the failure of transformer, Cause great economic loss.

Utility model content

To solve the above problems, the purpose of this utility model is to provide a kind of oil-immersed transformer oil to monitor ejector Improvement structure, the utility model adopts the following technical solutions to realize.

A kind of improvement structure of oil-immersed transformer oil monitoring ejector, including transformer lateral wall, the first binding post, Second binding post, the first binding post and the second binding post are all to stretch out transformer lateral wall, and the first binding post connects with second Terminal is parallel to each other and does not contact；It is characterized by: the improvement structure of the oil-immersed transformer oil monitoring ejector also has There are lead end cap, cover board, terminal box, connecting cavity, attaching nut, interior fixation hole, outer fixation hole, first sleeve, the first sealing group Part, the second casing, the first washer, the first nut, the first conducting rod, third casing, the second seal assembly, Quadruplet pipe, second Washer, the second nut, the second conducting rod, lead end cap a part is embedded in transformer lateral wall and some another stretching becomes Depressor lateral wall, is hydraulic seal between lead end cap and transformer lateral wall, lead end cap center be it is hollow, first connects Terminal and the second binding post are pierced by the hollow space in lead end cap center, successively divide except lead end cap hollow space to outer edge Be furnished with interior fixing hole, connecting hole, outer fixing hole, the center of cover board be it is hollow, terminal box is located at the hollow space of cover board Outside, terminal box outwardly protrudes cover board, and terminal box is the thin walled structure of cuboid, the face that terminal box is connect with cover board It is opening, the opening portion of terminal box forms terminal box chamber, has on the side wall of the arranged on left and right sides of terminal box through side wall Opening, referred to as left side opening and right openings, the inner end of the first binding post and the second binding post be all located at transformer lateral wall it Interior, the other end of the first binding post is connected in the intracavitary one end with the first conducting rod of terminal box, the other end of the second binding post It is connected in the intracavitary one end with the second conducting rod of terminal box, the outer cover of the first conducting rod is equipped with first sleeve, first sleeve One end be protrude into left side opening and be that liquid seals between first sleeve and terminal box, the outer cover of the second conducting rod is equipped with Third casing, one end of third casing are that protrude between right openings and third casing and terminal box be that liquid seals, connection Nut, which penetrates connecting cavity and is fixed in connecting hole, fixes cover board mutually with lead end cap, is placed between cover board and lead end cap Sealing ring, bolt one end pass through interior fixation hole and hole on sealing ring, are screwed into interior fixing hole again, keep cover board and lead end cap solid Determine and fix cover board with lead end cap, fastening screw one end passes through outer fixation hole and hole on sealing ring, is screwed into outer fixation again Cover board and lead end cap are fixed with hole and are fixed cover board and lead end cap and made the two further sealing；First seal assembly It is socketed on the first conducting rod except first sleeve, the second casing is socketed in the first conducting rod except the first seal assembly On, the first washer is socketed on the first conducting rod except the second casing, and the first nut set is screwed in first except the first washer On conducting rod；Second seal assembly is socketed on the second conducting rod except third casing, and Quadruplet pipe is socketed in the second sealing On the second conducting rod except component, second packing ring is socketed on the second conducting rod except Quadruplet pipe, and the second nut set is twisted On the second conducting rod except second packing ring.

A kind of improvement structure of oil-immersed transformer oil monitoring ejector described above, it is characterised in that: the lid Plate, terminal box material be all conductive.

The improvement structure of a kind of oil-immersed transformer oil monitoring ejector described above, it is characterised in that: described the Sleeve, the second casing, third casing, Quadruplet pipe material all be insulation.

The improvement structure of a kind of oil-immersed transformer oil monitoring ejector described above, it is characterised in that: described close The material of seal is nitrile rubber.

The utility model mainly has following advantageous effects: monitoring line dismounting is more convenient, working efficiency is higher, will not The risk of oil leak occurs, transformer is more safe and reliable.

Detailed description of the invention

Fig. 1 is the structural schematic diagram that transformer oil in the prior art monitors ejector part.

Fig. 2 is that transformer oil monitors the structural schematic diagram that ejector is partly improved structure in the utility model.

Fig. 3 is the partial structure diagram that the utility model is applied in transformer.

Specific embodiment

In order to enable place technical field personnel to be advantageously carried out this patent, with reference to the accompanying drawings of the specification to specific implementation Mode is described in further detail, in figure drawing reference numeral represent meaning it is as follows: 1-cover board, 2-terminal boxes, 10-connecting cavities, 11-attaching nuts, 12-outer fixation holes, 13-interior fixation holes, 31-first sleeves, the 41-the first seal assembly, 51-the second Casing, the 61-the first washer, the 71-the first nut, the 81-the first conducting rod, 91-the first monitoring line, 32-third casings, 42-the second seal assembly, the 52-the Quadruplet pipe, 62-second packing rings, the 72-the second nut, the 82-the second conducting rod, 92-the Two monitoring lines, 93-ground lines, 94-grounds, 95-transformer lateral walls, the 811-the first binding post, the 821-the second wiring Column.

It please refers to Fig.1 to Fig.3, a kind of improvement structure of oil-immersed transformer oil monitoring ejector, including outside transformer Side wall 95, the first binding post 811, the second binding post 821, the first binding post and the second binding post are all to stretch out transformer lateral wall , and the first binding post is parallel to each other with the second binding post and does not contact；It is characterized by: the oil-immersed transformer oil monitoring The improvement structure of ejector also has lead end cap, cover board 1, terminal box 2, connecting cavity 10, attaching nut 11, interior fixation hole 12, outer fixation hole 13, first sleeve 31, the first seal assembly 41, the second casing 51, the first washer 61, the first nut 71, first Conducting rod 81, third casing 32, the second seal assembly 42, Quadruplet pipe 52, second packing ring 62, the second nut 72, second are conductive Bar 82, lead end cap a part is embedded in transformer lateral wall and some another stretching transformer lateral wall, lead end cap Hydraulic seal between transformer lateral wall, lead end cap center be it is hollow, the first binding post and the second binding post are worn The hollow space in lead end cap center out has been sequentially distributed interior fixing hole, company to outer edge except lead end cap hollow space Connect hole, outer fixing hole, the center of cover board 1 be it is hollow, terminal box 2 is located at the outside of the hollow space of cover board, and terminal box is Cover board is outwardly protruded, terminal box is the thin walled structure of cuboid, and the face that terminal box is connect with cover board is opening, terminal box Opening portion form terminal box chamber, there is the opening through side wall, referred to as left side is opened on the side wall of the arranged on left and right sides of terminal box The inner end of mouth and right openings, the first binding post 811 and the second binding post 821 is all located within transformer lateral wall, and first connects The other end of terminal is connected in the intracavitary one end with the first conducting rod 81 of terminal box, and the other end of the second binding post is in terminal box Intracavitary one end with the second conducting rod 82 is connected, and the outer cover of the first conducting rod is equipped with first sleeve 31, and the one of first sleeve End is to protrude into left side opening and be that liquid seals between first sleeve and terminal box, and the outer cover of the second conducting rod is equipped with third Casing 32, one end of third casing are that protrude between right openings and third casing and terminal box be that liquid seals, and connect spiral shell Mother 11, which penetrates connecting cavity 10 and is fixed in connecting hole, fixes cover board mutually with lead end cap, places between cover board and lead end cap There is a sealing ring, bolt one end passes through interior fixation hole 12 and hole on sealing ring, is screwed into interior fixing hole again, makes cover board and lead end Lid is fixed simultaneously to fix cover board with lead end cap, and hole of the fastening screw one end across outer fixation hole 13 and on sealing ring is screwed into again Outer fixing hole fixes cover board and lead end cap and fixes cover board and lead end cap and make the two further sealing；First is close Sealing assembly 41 is socketed on the first conducting rod except first sleeve, and the second casing 51 is socketed in except the first seal assembly On one conducting rod, the first washer 61 is socketed on the first conducting rod except the second casing, and the first 71 sets of nut is screwed in the first pad On the first conducting rod except circle；Second seal assembly 42 is socketed on the second conducting rod except third casing, Quadruplet pipe 52 are socketed on the second conducting rod except the second seal assembly, and second packing ring 62 is socketed in the second conduction except Quadruplet pipe On bar, on the second conducting rod that the second 72 sets of nut is screwed in except second packing ring.

When the utility model at work, the first monitoring line 91 is socketed on 81 other end of the first conducting rod, and makes its position Between the first washer 61 and the first nut 71, the first nut 71, which is tightened, makes the first monitoring line 91 be adjacent to the first washer 61；By Two monitoring lines 92 are socketed on 82 other end of the second conducting rod, and are located between second packing ring 62 and the second nut 72, the Two nuts 72, which are tightened, makes the second monitoring line 92 be adjacent to second packing ring 62；It is grounded in 93 1 end Jie terminal boxes 2, ground line 93 is another It is grounded on one end Jie ground 94；The other end of first monitoring line 91 and the second monitoring line 92 is to be introduced into detection device 's；It is discontiguous between first conducting rod and the second conducting rod.

In the utility model, due to improving transformer oil monitoring ejector, so that: in the ground connection of test transformer oil When resistance, it is only necessary to be backed out by from the first conducting rod and the second conducting rod, when installation also only needs to be mounted on the first conducting rod It is this so that in the case where frequent dismounting on the second conducting rod, will not cause to improve pervious first binding post 811 and The loosening of second binding post 821, situations such as oil leak will not be generated, moreover, for transformer oil monitoring ejector replacement more Add conveniently, improves work efficiency；Ensure the safety of oil-immersed transformer and reliable.

The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective It makes a variety of changes.

Claims

1. An improved structure of an oil-immersed transformer oil monitoring lead-out device, comprising the outer side wall of the transformer, the first terminal post, the second terminal post, and the first terminal post and the second terminal post both extend out of the outer side wall of the transformer, and The first terminal and the second terminal are parallel to each other and do not contact; it is characterized in that: the improved structure of the oil-immersed transformer oil monitoring lead-out device also has a lead end cover, a cover plate, a junction box, a connection cavity, a connection nut, Inner fixing hole, outer fixing hole, first sleeve, first sealing assembly, second sleeve, first washer, first nut, first conductive rod, third sleeve, second sealing assembly, fourth sleeve , the second washer, the second nut, the second conductive rod, part of the lead end cover is embedded in the outer side wall of the transformer and another part extends out of the outer side wall of the transformer, the lead end cover and the outer side wall of the transformer are liquid-tight, the lead end The center of the cover is hollow, the first terminal and the second terminal pass through the hollow part in the center of the lead end cover, and the outer edge of the hollow part of the lead end cover is sequentially distributed with internal fixing holes, connecting holes, and external fixing holes. The center of the cover plate is hollow, and the junction box is located outside the hollow part of the cover plate. The opening part of the junction box forms a junction box cavity, and the left and right side walls of the junction box have openings running through the side walls, which are called left opening and right opening, the first terminal and the second terminal. The inner end of the first terminal is located in the outer side wall of the transformer, the other end of the first terminal is connected with one end of the first conductive rod in the junction box cavity, and the other end of the second terminal is connected with the second conductive rod in the junction box cavity. One end of the first conductive rod is connected with a first sleeve, one end of the first sleeve extends into the left opening and the first sleeve and the junction box are liquid-tight, and the second conductive rod There is a third sleeve on the outside of the sleeve, one end of the third sleeve extends into the opening on the right side, and the third sleeve and the junction box are liquid-tight. The connection nut penetrates into the connection cavity and is fixed in the connection hole so that the The cover plate is fixed with the lead end cap, and a sealing ring is placed between the cover plate and the lead end cap. Fix and fix the cover plate and the lead end cap. One end of the tightening screw passes through the outer fixing hole and the hole on the sealing ring, and then screw it into the outer fixing hole to fix the cover plate and the lead end cap and make the cover plate and the lead end cap. Fix and further seal the two; the first sealing assembly is sleeved on the first conductive rod outside the first sleeve, the second sleeve is sleeved on the first conductive rod outside the first sealing assembly, the first The washer is sleeved on the first conductive rod outside the second sleeve, the first nut is sleeved on the first conductive rod outside the first washer; the second sealing assembly is sleeved on the first conductive rod outside the third sleeve On the two conductive rods, the fourth sleeve is sleeved on the second conductive rod outside the second sealing assembly, the second washer is sleeved on the second conductive rod outside the fourth sleeve, and the second nut is sleeved on the second conductive rod on the second conductive rod outside the second washer.

2 . The improved structure of an oil-immersed transformer oil monitoring lead-out device according to claim 1 , wherein the materials of the cover plate and the junction box are all conductive. 3 .

3. The improved structure of an oil-immersed transformer oil monitoring lead-out device according to claim 1, characterized in that: the materials of the first bushing, the second bushing, the third bushing and the fourth bushing are all insulated.

4. The improved structure of an oil-immersed transformer oil monitoring lead-out device according to claim 1, wherein the material of the sealing ring is nitrile nitrile rubber.