CN113223813B

CN113223813B - Oil-immersed transformer insulation sleeve with warning effect

Info

Publication number: CN113223813B
Application number: CN202110491441.6A
Authority: CN
Inventors: 卜凡强; 周宗民; 李龙龙
Original assignee: Anhui Jinhuan Electric Equipment Co ltd
Current assignee: Anhui Jinhuan Electric Equipment Co ltd
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2022-04-26
Anticipated expiration: 2041-05-06
Also published as: CN113223813A

Abstract

The invention discloses an insulating sleeve for an oil-immersed transformer with an alarm function, which belongs to the technical field of transformers and comprises an insulating sleeve for the oil-immersed transformer with the alarm function, wherein when the temperature in the insulating sleeve is overhigh, gas in a protective film expands and finally bursts and separates, the burst sound can remind workers to alarm the workers preliminarily and timely, meanwhile, the alarm ball can float, the alarm ball not only can play the role of alarming the workers, but also can enable the workers to know the direction in numerous transformers, the searching and removing time of the problem transformer is saved, after the separating film is separated, the lower side part of the protective film can be contacted with the upper end of an outer convex edge, cooling oil in a liquid storage cavity can flow into a cooling channel after a liquid blocking film is punctured, and the insulating sleeve and overheating elements such as an internal conducting rod and the like can be cooled, the temporary cooling effect is achieved, and more time is provided for the treatment of subsequent workers.

Description

Oil-immersed transformer insulation sleeve with warning effect

Technical Field

The invention relates to the technical field of transformers, in particular to an insulating sleeve for an oil-immersed transformer with an alarming function.

Background

The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system. The essential equipment in a transformer substation is a transformer, the transformer is a device for changing alternating-current voltage by utilizing the principle of electromagnetic induction, the main functions of the transformer are voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization and the like, and an oil-immersed transformer is a common transformer.

The insulating sleeve in the oil-immersed transformer connects the transformer with important electrical components of an external energy system, and the outgoing line of the transformer winding must pass through the insulating sleeve and be connected with the outside. The insulating sleeve can be considered as a key insulating part for isolating the high potential and the ground potential of the outgoing line of the transformer, and simultaneously plays a role of fixing the outgoing line. With the gradual increase of power consumption in China and the long-term uninterrupted operation of a transformer, overload and even sudden short circuit often occur, so that the phenomenon of overheating caused by overlarge current inside an insulating sleeve of the transformer is very common, and meanwhile, when the insulating sleeve is not tightly contacted with an equipment wire clamp, serious heating can be caused, so that the temperature detection in the insulating sleeve is very necessary.

At present, the temperature monitoring of the insulating sleeve is mainly centralized and mainly carried out by adopting a far infrared camera method for remote observation, personnel need to carry out detection at certain intervals, the remote monitoring effect is not good, and due to the fact that the certain intervals are carried out, the temperature monitoring cannot be carried out timely when the temperature of the insulating sleeve is too high, and the possibility of danger is high; meanwhile, when the temperature of the insulating sleeve is higher, temporary cooling treatment cannot be carried out on the insulating sleeve in time, so that the time for danger is short. Therefore, an insulating bushing for an oil-immersed transformer with a warning function is proposed to solve the above problems.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide an insulating sleeve for an oil-immersed transformer with an alarm function, when the temperature in the insulating sleeve is overhigh, the gas in the protective film of the insulating sleeve is heated and expanded, and finally the protective film is separated from a separation film by bursting, at the moment, the sound of bursting in the protective film firstly reminds a worker to perform high-temperature alarm preliminarily and timely, and the alarm ball in the protective film is floated, so that the alarm function can be further performed on the worker, the danger possibility is reduced, the worker can know the position of the transformer with problems in a plurality of transformers timely through the alarm ball, the time for searching and removing the problem transformer by the worker is saved, and the processing time for the accident transformer is greatly shortened, and after the separation membrane is separated, the lower side part of the protective membrane can contact the upper end of the convex edge of the insulating sleeve, the convex edge upper sharp prick can pierce the liquid blocking membrane at the bottom of the protective membrane, the cooling oil in the liquid storage cavity can flow out to enter the inlet channel and finally enter the cooling channel, so that overheating elements such as the insulating sleeve and the internal conducting rod can be cooled, a temporary cooling effect can be achieved, the time of danger caused by overhigh temperature is prolonged, more time is provided for the treatment of subsequent working personnel, and the safety is further improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

An insulation sleeve for an oil-immersed transformer with an alarm effect comprises a transformer body, wherein a plurality of insulation sleeves are fixedly connected to the upper end of the transformer body, conductive rods are connected inside the insulation sleeves, connecting terminals are fixedly connected to the upper ends of the insulation sleeves, a plurality of convex edges are arranged on the outer wall of each insulation sleeve in a surrounding mode, a plurality of alarm mechanisms are arranged between every two adjacent convex edges and comprise protective films, each protective film is fixedly connected to the outer wall of each insulation sleeve, the inside of each protective film is filled with gas, each protective film is connected with a traction rope and an alarm ball, helium is filled inside each alarm ball, each alarm ball is fixedly connected to one end of each traction rope, the other end of each traction rope is fixedly connected to the outer wall of each insulation sleeve, one side, close to the alarm ball, of each protective film is connected with a separation film, and a liquid storage cavity is formed inside the lower side of each protective film, the lower wall of the protective film is connected with a plurality of liquid blocking films in an embedded mode, the upper ends of the liquid blocking films are communicated with the liquid storage cavity, and the upper ends of the outer convex edges are connected with a plurality of groups of sharp spines. When the temperature in the insulating sleeve is too high, higher temperature can make the inside gas intensification inflation of protective film of insulating sleeve outer wall, can follow separation film 7 departments and take place to burst and separate in the protective film after continuously rising the temperature, and the separation film can break away from the protective film, and the sound that takes place to burst in the protective film at this moment can remind the staff at first, tentatively and in time carry out high temperature and alert, has avoided the untimely condition of discovery. After the separation of the separation membrane, the inside warning ball of protective film is filled with the helium, the density of helium is far less than the air, thereby can drive the warning ball and float, and the pulling haulage rope extension, the warning ball can float at a higher distance, not only can be further play the effect of warning to the staff, make it can the audio-visual transformer of observing here take place the condition that the temperature is too high, the possibility of danger has been reduced, and can make the staff when the condition that the transformer temperature is too high in the discovery through the warning ball, can be timely know the transformer position of specific emergence problem in numerous transformers, the staff has been saved to the seek and the elimination time of problem transformer, the processing time to accident transformer has been shortened greatly, have higher security.

Furthermore, a plurality of cooling channels are arranged inside the insulating sleeve, a plurality of branch channels are arranged inside the outer convex edge, a plurality of inlet channels with different heights are also arranged on the outer convex edge, the inlet channels are communicated with the branch channels, a filter screen is fixedly connected to an inlet of each inlet channel, the spine is fixedly connected to the upper end of the filter screen, the filter screen can play a role in isolating impurities, when the protective film bursts and the separation film is separated, the lower side part of the protective film can contact the upper end of the outer convex edge of the insulating sleeve, the spine on the outer convex edge can pierce the liquid blocking film at the bottom of the protective film, cooling oil in the liquid storage cavity can flow out, enters the inlet channels through the filter screens, then flows into the branch channels, and finally enters the cooling channels, so that overheating original parts such as the insulating sleeve and the conductive rods inside can be cooled, the temporary cooling effect can be achieved, so that the danger caused by overhigh temperature is prolonged, more time is provided for the treatment of subsequent workers, and the safety is further improved.

Further, a plurality of groups of hook bristles are fixedly connected to the bottom of the protective film, the hook bristles are located between adjacent liquid blocking films, the outer protrusion edge is fixedly connected with a plurality of groups of fiber bristles matched with the hook bristles, the fiber bristles are located between adjacent filter screens, after the separation film bursts in the protective film, the protective film on the lower side is in contact with the outer protrusion edge when the upper end is located, the hook bristles at the bottom of the protective film can hook the fiber bristles on the outer protrusion edge, so that the protective film can be fixed, further the contact tip bristles of the liquid blocking film can be better contacted and punctured, meanwhile, cooling oil in the liquid storage cavity can better enter the inlet channel, and the temporary cooling effect of the liquid blocking film is improved.

Furthermore, the upper end of the convex edge at the uppermost side is fixedly connected with a spring and two supporting rods, the upper ends of the supporting rods are fixedly connected with a supporting plate, the upper end of the supporting plate is connected with a buzzer, the upper end of the spring and the lower end of the supporting plate are both fixedly connected with conductive connecting sheets, an insulating baffle is arranged between the two conductive connecting sheets, one end of the insulating baffle is fixedly connected with a pull rope, the other end of the pull rope is fixedly connected with the outer end of the separation membrane, at the same time, the pull rope and the insulating baffle are driven to be separated, the insulating baffle is separated from the two conductive connecting sheets, the buzzer sounds after the upper conductive connecting sheet and the lower conductive connecting sheet are contacted and electrified, the worker is warned by the buzzer again, and a specific direction is provided, so that a further safety function is improved for the discovery of workers, and the use safety of the transformer is greatly improved.

Furthermore, the protective film is filled with signal smoke, and after the gas in the protective film expands and the separation film bursts, the signal smoke in the protective film can also float into the air along with the gas, so that workers are further warned.

Further, the outer wall coating of warning ball has red pigment, and red colour through warning ball surface coating can make it more obvious, can make things convenient for the staff to observe.

Furthermore, balloon protection liquid is uniformly coated on the inner wall of the warning ball, and the balloon protection liquid is coated on the inner wall of the warning ball, so that helium gas leakage in the warning ball can be guaranteed, and the time for floating is longer.

Further, the hardness of the separation membrane is lower than that of the protective membrane, the hardness of the warning ball is higher than that of the separation membrane, the hardness of the separation membrane is lower than that of the protective membrane, the separation membrane can be burst and separated firstly when gas inside the protective membrane expands, the hardness of the warning ball is higher than that of the separation membrane, and the warning ball cannot burst when the separation membrane bursts.

Furthermore, the outer end fixedly connected with balancing weight of parting film, the other end fixed connection of balancing weight is in stay cord one end, through the aggravation effect of balancing weight, can make parting film and stay cord can break away from between two electrically conductive connection pieces from insulating baffle of more effectual drive.

Furthermore, four warning mechanisms and four cooling channels are arranged, and the warning mechanisms and the cooling channels are respectively positioned in the front, the back, the left and the right directions of the outer wall of the insulating sleeve; through all setting up warning mechanism and cooling channel in four directions all around insulating sleeve, not only can monitor the temperature in each position of insulating sleeve, improved the effect of warning effect and interim cooling moreover.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) when the intraductal high temperature of insulating sleeve in this scheme, higher temperature can make the inside gas intensification inflation of protective film of insulating sleeve outer wall, can follow the separation membrane department and take place to burst the separation in the protective film after continuously rising temperature, and the separation membrane can break away from the protective film, and the sound that takes place to burst in the protective film at this moment can remind the staff at first, tentatively and in time carry out high temperature alert, has avoided the untimely condition of discovery.

(2) After the separation of the separation membrane in this scheme, the inside warning ball of protecting film is owing to be equipped with the helium and can float, not only can be further play alert effect to the staff, make its transformer that can audio-visually observe here take place the condition of high temperature, the possibility of danger has been reduced, and can make the staff when the discovery has the too high condition of transformer temperature through warning ball, can be timely know the transformer position of specific emergence problem in numerous transformers, the seek and the elimination time of staff to the problem transformer has been saved, the processing time to accident transformer has been shortened greatly, higher security has.

(3) After the protective film bursts and the separation membrane separates in this scheme, insulating sleeve's evagination edge upper end can be contacted to the downside part of protective film, the last spine on evagination edge can puncture the fender liquid membrane of protective film bottom this moment, the coolant oil in the stock solution chamber can flow, and enter into the access passage through the filter screen, finally enter into in the cooling passageway, thereby can cool down overheated original papers such as insulating sleeve and inside conducting rod, can reach interim cooling effect, thereby prolong the dangerous time that causes because too high temperature, provide more time for follow-up staff's processing, further improvement the security.

(4) This scheme can drive stay cord and insulating baffle simultaneously and break away from when the separation membrane separates the back, and insulating baffle breaks away from two electrically conductive connection pieces this moment, and electrically conductive connection piece contact circular telegram back about this moment, bee calling organ will sound, and again through bee calling organ come to alert the staff to and provide the position place, improved further insurance effect for staff's discovery, can make the very big improvement of security that the transformer used.

(5) After the separation membrane bursts in this scheme, the inside signal flue gas of protective film also can be followed and drifted in the air, and further tentatively warns the staff, and the red colour through the outer surface coating of warning ball simultaneously can make it more obvious, can make things convenient for the staff to observe.

Drawings

FIG. 1 is a schematic perspective view of a transformer body according to the present invention;

FIG. 2 is a schematic cross-sectional view of the inside of the insulating sleeve according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is an enlarged view of the structure of FIG. 3 at C;

FIG. 5 is an enlarged view of the structure of FIG. 3 at D;

FIG. 6 is an enlarged view of the structure at B in FIG. 2;

fig. 7 is a schematic structural diagram of the insulating sleeve after separation by the separation membrane of the present invention.

The reference numbers in the figures illustrate:

1. a transformer body; 2. an insulating sleeve; 3. an outer convex edge; 4. a protective film; 5. a hauling rope; 6. a warning ball; 7. a separation membrane; 8. a liquid storage cavity; 9. a liquid barrier film; 10. pricking with a sharp point; 11. a cooling channel; 12. a branch channel; 13. entering a channel; 14. filtering with a screen; 15. barbed with hooks; 16. softening the fibers; 17. a spring; 18. a strut; 19. a support plate; 20. a buzzer; 21. a conductive connecting sheet; 22. an insulating baffle; 23. and pulling a rope.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection can be direct connection or indirect connection through an intermediate medium, and can be communication inside the model adapting element. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-5, an insulation sleeve for an oil-immersed transformer with a warning function comprises a transformer body 1, a plurality of insulation sleeves 2 are fixedly connected to the upper end of the transformer body 1, conductive rods are connected to the inside of the insulation sleeves 2, a connecting terminal is fixedly connected to the upper end of each insulation sleeve 2, a plurality of convex edges 3 are arranged on the outer wall of each insulation sleeve 2 in a surrounding manner, a plurality of warning mechanisms are arranged between every two adjacent convex edges 3, each warning mechanism comprises a protective film 4, each protective film 4 is fixedly connected to the outer wall of each insulation sleeve 2, the protective film 4 is filled with gas, a traction rope 5 and a warning ball 6 are connected to the inside of each protective film 4, helium is filled in each warning ball 6, each warning ball 6 is fixedly connected to one end of each traction rope 5, the other end of each traction rope 5 is fixedly connected to the outer wall of each insulation sleeve 2, a separation film 7 is connected to one side, close to each warning ball 6, of each protective film 4, the liquid storage cavity 8 is formed in the lower side of the protective film 4, the lower wall of the protective film 4 is connected with a plurality of liquid blocking films 9 in an embedded mode, the upper end of each liquid blocking film 9 is communicated with the liquid storage cavity 8, and the upper end of the outer convex edge 3 is connected with a plurality of groups of spines 10. When the temperature in the insulating sleeve is too high, higher temperature can make the inside gas intensification inflation of protective film 4 of insulating sleeve outer wall, can follow separation film 7 department in the protective film 4 and take place to burst the separation after continuously rising the temperature, and separation film 7 can break away from protective film 4, and the sound that takes place to burst in the protective film 4 this moment at first can remind the staff, tentatively and in time carry out high temperature alert, has avoided the untimely condition of discovery. The protective film 4 is filled with signal smoke, and after the gas in the protective film 4 expands and the separation film 7 bursts, the signal smoke in the protective film 4 can also float into the air, so that workers are further warned.

Referring to fig. 2, 3 and 7, after the separation membrane 7 is separated, the inside of the warning ball 6 inside the protective membrane 4 is filled with helium gas, the density of the helium gas is far less than that of air, so that the warning ball 6 is driven to float, the pulling rope 5 is pulled to extend, and the warning ball 6 can float at a higher distance, which not only can further warn the worker to visually observe the situation that the temperature of the transformer is too high, thereby reducing the possibility of danger, but also can timely know the specific transformer position with problems in a plurality of transformers when the worker finds that the temperature of the transformer is too high through the warning ball 6, thereby saving the time for searching and removing the problem transformer by the worker, greatly shortening the processing time of the accident transformer, and having higher safety, as shown in fig. 7, the separated warning ball 6 is blown up by bursting all the separation membranes 7. The inner wall of the warning ball 6 is evenly coated with balloon protection liquid, and the inner wall of the warning ball 6 is coated with the balloon protection liquid, so that helium gas leakage in the warning ball 6 can be ensured, and meanwhile, the time for floating is longer. The outer surface coating of warning ball 6 has red pigment, and the red colour through the outer surface coating of warning ball 6 can make it more obvious, can make things convenient for the staff to observe.

Referring to fig. 2-5, a plurality of cooling channels 11 are formed inside the insulating sleeve 2, a plurality of branch channels 12 are formed inside the protruding edge 3, a plurality of inlet channels 13 with different heights are further formed on the protruding edge 3, the inlet channels 13 are communicated with the branch channels 12, a filter screen 14 is fixedly connected to an inlet of the inlet channel 13, a spike 10 is fixedly connected to an upper end of the filter screen 14, the filter screen 14 can isolate impurities, when the protective film 4 bursts and the separation film 7 is separated, a lower portion of the protective film 4 contacts an upper end of the protruding edge 3 of the insulating sleeve 2, a liquid blocking film 9 at the bottom of the protective film 4 is pierced by the spike 10 on the protruding edge 3, at the moment, cooling oil in the liquid storage cavity 8 flows out and enters the inlet channels 13 through the filter screen 14, then flows into the branch channels 12, and finally enters the cooling channels 11, so as to cool down the insulating sleeve 2 and the original parts such as the conductive rods inside, the temporary cooling effect can be achieved, so that the dangerous time caused by the overhigh temperature is prolonged, more time is provided for the treatment of subsequent workers, and the safety is further improved.

Referring to fig. 3-5, the bottom of the protective film 4 is fixedly connected with a plurality of groups of barbed bristles 15 with hooks, the barbed bristles 15 with hooks are positioned between adjacent liquid blocking films 9, the upper end of the outward protruding edge 3 is fixedly connected with a plurality of groups of fiber bristles 16 matched with the barbed bristles 15 with hooks, and the fiber bristles 16 are positioned between adjacent filter screens 14; after the separation membrane 7 bursts in protective film 4, when the protective film 4 of downside contacted the evagination along 3 upper ends, the fibrous fluff 16 on the evagination along 3 can be caught on the barbed bristles 15 of protective film 4 bottom to can fix protective film 4, and then can make the better contact point thorn 10 of fender liquid membrane 9 and be punctured, the coolant oil in stock solution chamber 8 also can better enter into access passage 13 simultaneously, improves its interim cooling effect.

Referring to fig. 2, 6 and 7, the upper end of the upper-most protruding edge 3 is fixedly connected with a spring 17 and two supporting rods 18, the upper end of each supporting rod 18 is fixedly connected with a supporting plate 19, the upper end of each supporting plate 19 is connected with a buzzer 20, the upper end of each spring 17 and the lower end of each supporting plate 19 are both fixedly connected with conductive connecting sheets 21, an insulating baffle 22 is placed between the two conductive connecting sheets 21, one end of each insulating baffle 22 is fixedly connected with a pull rope 23, the other end of each pull rope 23 is fixedly connected with the outer end of each separating membrane 7, when the separating membranes 7 are separated, the pull ropes 23 and the insulating baffles 22 are driven to be separated, the insulating baffles 22 are separated from the two conductive connecting sheets 21, when the upper conductive connecting sheets 21 and the lower conductive connecting sheets are contacted and electrified, the buzzers 20 sound, the buzzers are used for alerting workers again, the directions are provided, and further insurance effect is improved for the workers to find, the safety of the transformer can be greatly improved. The outer end fixedly connected with balancing weight of separation membrane 7, the other end fixed connection of balancing weight is in 23 one ends of stay cord, through the aggravation effect of balancing weight, can make separation membrane 7 and stay cord 23 can break away from between two electrically conductive connection pieces 21 by more effectual drive insulation baffle 22. The hardness of the separation membrane 7 is lower than that of the protective membrane 4, so that the separation membrane 7 is burst and separated firstly when gas in the protective membrane 4 expands, the hardness of the warning ball 6 is higher than that of the separation membrane 7, and the warning ball 6 can not burst when the separation membrane 7 bursts.

Vigilance mechanism and cooling channel 11 all are provided with four, and vigilance mechanism and cooling channel 11 are located four directions all around of insulating sleeve 2 outer wall respectively, all set up vigilance mechanism and cooling channel 11 through four directions all around at insulating sleeve 2, not only can monitor the temperature in 2 each positions of insulating sleeve, have improved the effect of vigilance effect and interim cooling moreover.

The working principle is as follows: when using, when the temperature in the insulating sleeve was too high, higher temperature can make the inside gas intensification inflation of protective film 4 of insulating sleeve outer wall, can follow separation film 7 department and take place to burst the separation in the protective film 4 after continuously rising the temperature, and separation film 7 can break away from protective film 4, and the sound that takes place to burst in the protective film 4 this moment at first can remind the staff, tentatively and in time carry out high temperature alert, has avoided the untimely condition of discovery.

When the protective film 4 is burst and the separation film 7 is separated, the inside of the warning ball 6 in the protective film 4 is filled with helium, because the density of the helium is far less than that of air, the warning ball 6 can be driven to float, the traction rope 5 is pulled to extend, the warning ball 6 can float at a higher distance, and the warning device not only can further play a role in warning workers and can visually observe the situation that the temperature of the transformer is too high, so that the danger occurrence possibility is reduced, but also can enable the workers to know the specific transformer position with the problem in a plurality of transformers in time when the transformer temperature is too high through the warning ball 6, thereby saving the searching and removing time of the workers for the problem transformer, greatly shortening the processing time of the accident transformer and having higher safety.

When the protective film 4 bursts and the separation film 7 is separated, the lower side part of the protective film 4 can contact the upper end of the convex edge 3 of the insulating sleeve 2, the liquid blocking film 9 at the bottom of the protective film 4 can be punctured through the sharp pricks 10 on the convex edge 3, the cooling oil in the liquid storage cavity 8 can flow out at the moment and enter the inlet channel 13 through the filter screen 14, then flow into the branch channel 12 and finally enter the cooling channel 11, so that the insulating sleeve 2 and the internal conductive rods and other overheating elements can be cooled, a temporary cooling effect can be achieved, the time of danger caused by overhigh temperature can be prolonged, more time can be provided for the treatment of subsequent workers, and the safety is further improved.

After 7 separation of separation membranes, can drive stay cord 23 and insulating baffle 22 simultaneously and break away from, insulating baffle 22 breaks away from two electrically conductive connection pieces 21 this moment, and electrically conductive connection piece 21 contact circular telegram back about this moment, buzzer 20 will sound, and again through buzzer come to alert the staff, and provide the position, improved further insurance effect for staff's discovery, can make the very big improvement of security that the transformer used.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides an insulation support for oil-immersed transformer with alert effect, includes transformer body (1), its characterized in that: the transformer comprises a transformer body (1), wherein the upper end of the transformer body is fixedly connected with a plurality of insulating sleeves (2), the inner parts of the insulating sleeves (2) are connected with conducting rods, the upper end of the insulating sleeves (2) is fixedly connected with a wiring terminal, the outer wall of the insulating sleeves (2) is encircled by a plurality of convex edges (3), a plurality of cooling channels (11) are arranged in the insulating sleeves (2), a plurality of branch channels (12) are arranged in the convex edges (3), a plurality of entry channels (13) with different heights are also arranged on the convex edges (3), the entry channels (13) are communicated with the branch channels (12), a filter screen (14) is fixedly connected at an inlet of the entry channels (13), a plurality of warning mechanisms are arranged between the convex edges (3) and comprise protective films (4), and the protective films (4) are fixedly connected to the outer wall of the insulating sleeves (2), the gas-filled type warning device is characterized in that the protective film (4) is filled with gas, the protective film (4) is connected with a traction rope (5) and a warning ball (6) inside, the warning ball (6) is filled with helium, the warning ball (6) is fixedly connected to one end of the traction rope (5), the other end of the traction rope (5) is fixedly connected to the outer wall of the insulating sleeve (2), one side, close to the warning ball (6), of the protective film (4) is connected with a separation film (7), a liquid storage cavity (8) is formed in the lower side of the protective film (4), a plurality of liquid blocking films (9) are embedded and connected to the lower wall of the protective film (4), the upper end of each liquid blocking film (9) is communicated with the liquid storage cavity (8), the upper end of the outer convex edge (3) is connected with a plurality of groups of sharp spines (10), the sharp spines (10) are fixedly connected to the upper end of the filter screen (14), and the hardness of the separation film (7) is lower than that of the protective film (4), the hardness of the warning ball (6) is greater than that of the separation membrane (7).

2. The insulating sleeve with the warning function for the oil-immersed transformer according to claim 1, is characterized in that: the bottom fixedly connected with of protecting film (4) takes hook thorn hair (15) for a plurality of groups, take hook thorn hair (15) to be located between adjacent fender liquid membrane (9), protruding edge (3) upper end fixedly connected with a plurality of groups and take hook thorn hair (15) matched with fibre fluff (16), fibre fluff (16) are located between adjacent filter screen (14).

3. The insulating sleeve with the warning function for the oil-immersed transformer according to claim 1, is characterized in that: the most the outer convex edge (3) upper end fixedly connected with spring (17) and two branch (18), branch (18) upper end fixedly connected with backup pad (19), backup pad (19) upper end is connected with bee calling organ (20), the equal fixedly connected with conductive connection piece (21) of spring (17) upper end and backup pad (19) lower extreme, two placed between conductive connection piece (21) insulating barrier (22), the one end fixedly connected with stay cord (23) of insulating barrier (22), the other end fixed connection of stay cord (23) is in release film (7) outer end.

4. The insulating sleeve with the warning function for the oil-immersed transformer according to claim 1, is characterized in that: the protective film (4) is filled with signal smoke.

5. The insulating sleeve with the warning function for the oil-immersed transformer according to claim 1, is characterized in that: the outer surface of the warning ball (6) is coated with red pigment.

6. The insulating sleeve with the warning function for the oil-immersed transformer according to claim 1, is characterized in that: the inner wall of the warning ball (6) is evenly coated with balloon protection liquid.

7. The oil-filled transformer bushing with the warning function according to claim 3, wherein: the outer end of the separation membrane (7) is fixedly connected with a balancing weight, and the other end of the balancing weight is fixedly connected to one end of the pull rope (23).

8. The insulating sleeve with the warning function for the oil-immersed transformer according to claim 1, is characterized in that: four warning mechanisms and cooling channels (11) are arranged, and the warning mechanisms and the cooling channels (11) are respectively located in four directions of the outer wall of the insulating sleeve (2) in all directions.