阅读说明：本技术 一种具有涂层裂纹提醒功能的干式变压器 (Dry-type transformer with function is reminded to coating crackle ) 是由 卜凡强 周宗民 李龙龙 于 2021-05-06 设计创作，主要内容包括：本发明公开了一种具有涂层裂纹提醒功能的干式变压器,属于变压器技术领域,一种具有涂层裂纹提醒功能的干式变压器,在干式变压器表面的防腐涂层出现裂缝后,空气进入第一网筒和金属网筒之间,使得里面的填充物反应放热,进而使得第一弹性膜膨胀挤压绝缘液体,进而使得绝缘液体穿过第一弹性膜、金属网筒和无纺布,从而裂缝处流出,给工作人员起到提醒作用,在防腐涂层脱落时,绒毛可以避免其掉落,同时脱落过程中会将凹坑内的胶黏剂被挤压出,并在棉线的作用下,迅速均匀分布,在绒毛自身弹力作用下,使得脱落的防腐涂层复位并接触胶黏剂,保证脱落的防腐涂层粘接在原处,达到防脱落的功能。(The invention discloses a dry-type transformer with a coating crack reminding function, belonging to the technical field of transformers, and the dry-type transformer with the coating crack reminding function is characterized in that after an anticorrosive coating on the surface of the dry-type transformer cracks, air enters between a first net cylinder and a metal net cylinder to enable fillers in the dry-type transformer to react and release heat, so that a first elastic film expands and extrudes insulating liquid, the insulating liquid penetrates through the first elastic film, the metal net cylinder and non-woven fabrics, the cracks flow out, a reminding function is provided for workers, fluff can be prevented from falling off when the anticorrosive coating falls off, an adhesive in a pit can be extruded out in the falling process, the fluff is rapidly and uniformly distributed under the action of cotton threads, the fallen anticorrosive coating is reset and contacts the adhesive under the self elastic action of the fluff, and the fallen anticorrosive coating is ensured to be adhered to the original position, the anti-falling function is achieved.)

1. The utility model provides a dry-type transformer with function is reminded to coating crackle, includes transformer body (1), its characterized in that: the transformer comprises a transformer body (1), wherein the surface of the transformer body (1) is provided with a plurality of U-shaped grooves (101), a plurality of U-shaped plates (8) are fixedly connected in the U-shaped grooves (101), the U-shaped plates (8) are arranged at equal intervals, a first elastic membrane (5) is fixedly connected at the notch of the U-shaped grooves (101), the first elastic membrane (5) is in an inwards concave state, a metal mesh cylinder (4) is fixedly connected to the outer side surface of the transformer body (1), a non-woven fabric (3) is fixedly connected to the surface of the metal mesh cylinder (4), an anti-corrosion coating (2) is coated on the surface of the non-woven fabric (3), iron powder, activated carbon, inorganic salt, gravel and water are filled between the first elastic membrane (5) and the metal mesh cylinder (4), and an insulating liquid (6) is filled between the first elastic membrane (5) and the transformer body (1), a plurality of elastic holes have been seted up on the surface of first elastic membrane (5), the leak protection piece (7) of a pair of symmetry of inner wall fixedly connected with in elastic hole, two seal groove and fixed seal piece have been seted up respectively to the opposite face of leak protection piece (7), seal piece and seal groove joint.

2. A dry-type transformer with coating crack reminding function as claimed in claim 1, characterized in that: iron oxide powder is mixed in the insulating liquid (6).

3. A dry-type transformer with coating crack reminding function as claimed in claim 1, characterized in that: the surface of non-woven fabrics (3) is provided with a plurality of pits, the bottom fixedly connected with third elastic membrane (11) of pit, fixedly connected with many fine hair (10) on third elastic membrane (11).

4. A dry-type transformer with coating crack reminding function as claimed in claim 3, characterized in that: the surface of the third elastic membrane (11) is fixedly connected with a second elastic membrane (9), the second elastic membrane (9) is made of elastic materials, adhesives are filled in the second elastic membrane (9), a plurality of glue leaking openings are formed in the surface of the second elastic membrane (9), and the glue leaking openings are in a splayed shape.

5. A dry-type transformer with coating crack reminding function as claimed in claim 3, characterized in that: the inner wall of one side of the second elastic membrane (9) is provided with a plurality of hooks, and the inner wall of the other side of the second elastic membrane (9) is provided with a plurality of hanging rings.

6. A dry-type transformer with coating crack reminding function as claimed in claim 3, characterized in that: the down (10) is formed by weaving elastic fibers, and the top ends of the down (10) are fixedly connected.

7. A dry-type transformer with coating crack reminding function as claimed in claim 1, characterized in that: the U-shaped plate (8) is made of heat insulation materials, a plurality of carbon fibers are contained inside the U-shaped plate (8), and the carbon fibers are fixedly connected with the transformer body (1).

8. A dry-type transformer with coating crack reminding function as claimed in claim 1, characterized in that: the non-woven fabric (3) is fixedly connected with a plurality of cotton threads, and the cotton threads are fixedly connected with each other.

9. A dry-type transformer with coating crack reminding function as claimed in claim 3, characterized in that: and the surface of the pit is fixedly connected with an isolation net (12).

10. A dry-type transformer with coating crack reminding function as claimed in claim 1, characterized in that: iron powder, activated carbon, inorganic salt, gravel and water are filled between the first elastic membrane (5) and the metal mesh cylinder (4), and the filling amount of the iron powder, the activated carbon, the inorganic salt, the gravel and the water is less than two thirds of the volume between the first elastic membrane (5) and the metal mesh cylinder (4).

Technical Field

The invention relates to the technical field of transformers, in particular to a dry-type transformer with a coating crack reminding function.

Background

Dry-type transformers (hereinafter, referred to as "dry-type transformers") are transformers in which an iron core and a winding are not immersed in insulating oil, and are widely used for local lighting, high-rise buildings, airports, docks, CNC machines, and the like.

In order to prolong the service life of the existing dry-type transformer, the surface of the existing dry-type transformer is often coated with an anticorrosive coating, but the anticorrosive coating is difficult to avoid cracks along with the increase of the service life of the anticorrosive coating, and the cracks are small and difficult to find at the beginning, so that the cracks are easy to develop into large cracks, even the anticorrosive coating is locally peeled off, and the dry-type transformer is exposed in the air and has the risk of corrosion.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a dry-type transformer with a coating crack reminding function, after a crack occurs in an anticorrosive coating, air enters between a first net cylinder and a metal net cylinder, so that the filler in the first net cylinder reacts and releases heat, the first elastic film expands to extrude insulating liquid, and then the insulating liquid passes through the first elastic film, the metal net cylinder and non-woven fabric, so that the crack flows out, a reminding function is provided for workers, when the anticorrosive coating falls off, fluff can be prevented from falling off, and meanwhile, an adhesive in a pit can be extruded out in the falling process, so that the fallen anticorrosive coating is adhered to the original position, and the anti-falling function is achieved.

2. Technical scheme

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

A dry-type transformer with a coating crack reminding function comprises a transformer body, wherein a plurality of U-shaped grooves are formed in the surface of the transformer body, a plurality of U-shaped plates are fixedly connected in the U-shaped grooves and are arranged at equal intervals, a first elastic membrane is fixedly connected to the notch of each U-shaped groove and is in an inwards concave state, a metal mesh cylinder is fixedly connected to the outer side surface of the transformer body, a non-woven fabric is fixedly connected to the surface of the metal mesh cylinder, an anti-corrosion coating is coated on the surface of the non-woven fabric, iron powder, activated carbon, inorganic salt, gravels and water are filled between the first elastic membrane and the metal mesh cylinder, insulating liquid is filled between the first elastic membrane and the transformer body, a plurality of elastic holes are formed in the surface of the first elastic membrane, and a pair of symmetrical anti-leakage blocks are fixedly connected to the inner walls of the elastic holes, two seal groove and fixed seal piece have been seted up respectively to the opposite face of leak protection piece, seal piece and seal groove joint appear the crack back at anticorrosive coating, the air gets into between first net section of thick bamboo and the metal mesh section of thick bamboo, make the filler reaction of the inside exothermic, make first elastic film inflation extrusion insulating liquid, and then make insulating liquid pass first elastic film, metal mesh section of thick bamboo and non-woven fabrics, thereby crack department flows, play the warning effect for the staff, when anticorrosive coating drops, fine hair can avoid it to drop, the in-process that drops simultaneously can extrude the gluing agent in the pit, make the anticorrosive coating that drops bond in the original place, reach anti-drop's function.

Furthermore, the inside iron oxide powder that mixes of insulating liquid, the iron oxide powder is the red brown for insulating liquid has obvious warning effect after flowing out.

Further, the surface of non-woven fabrics is provided with a plurality of pits, the bottom fixedly connected with third elastic membrane of pit, many fine hair of fixedly connected with on the third elastic membrane, anticorrosive coating that fine hair can avoid droing drops, and third elastic membrane can be at anticorrosive coating in-process extrusion gluing agent that drops for the gluing agent flows out.

Further, the fixed surface of third elastic membrane is connected with second elastic membrane, second elastic membrane is made by elastic material, the intussuseption of second elastic membrane is filled with the gluing agent, a plurality of hourglass jiao kou have been seted up on the surface of second elastic membrane, it is "eight" style of calligraphy to leak jiao kou, and the hourglass jiao kou can avoid a large amount of anticorrosive coatings to get into the interior contaminated gluing agent of second elastic membrane.

Further, one side inner wall of second elastic membrane is provided with a plurality of couples, the opposite side inner wall of second elastic membrane is provided with a plurality of links, and couple and link can avoid second elastic membrane under the extrusion state to reset, and then avoid second elastic membrane to suck back the gluing agent of extruding once more.

Furthermore, the fluff is woven by elastic fibers, and is multiple in fixed connection with the top end of the fluff, so that the fluff with elasticity can pull the fallen anticorrosive coating back to the original position again, and the fallen anticorrosive coating is bonded to the original position.

Further, "U" template is made by thermal insulation material, "U" template's inside contains many carbon fibers, carbon fiber and transformer body fixed connection, "U" template can be divided the isolation to "U" type groove for each department of anticorrosive coating splits, all has the warning function, and the carbon fiber of "U" template inside has good heat conductivity simultaneously, makes things convenient for the transformer body heat dissipation.

Further, a plurality of cotton threads of fixedly connected with on the non-woven fabrics, mutual fixed connection between the cotton thread, the cotton thread can absorb the gluing agent fast for the gluing agent of extruding can disperse fast, improves anticorrosive coating's adhesion degree.

Furthermore, the surface of the pit is fixedly connected with an isolation net, and the isolation net can prevent a large amount of anticorrosive paint from entering the pit in the coating process of the anticorrosive coating, so that the surface of the anticorrosive paint is prevented from being uneven.

Furthermore, the filling quantity of iron powder, activated carbon, inorganic salt, gravel and water filled between the first elastic membrane and the metal mesh cylinder is less than two thirds of the volume between the first elastic membrane and the metal mesh cylinder, so that extruded insulating liquid can rapidly pass through the space between the first elastic membrane and the metal mesh cylinder, outflow cracks are formed, and the reminding efficiency is guaranteed.

3. Advantageous effects

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

(1) this scheme crack back appears in anticorrosive coating, the air gets into between first net section of thick bamboo and the metal mesh section of thick bamboo, make the filler reaction of the inside exothermic, make first elastic film inflation extrusion insulating liquid, and then make insulating liquid pass first elastic film, a metal mesh section of thick bamboo and non-woven fabrics, thereby crack department flows, play the warning effect for the staff, when anticorrosive coating drops, fine hair can avoid it to drop, the in-process that drops simultaneously can extrude the gluing agent in the pit, make the anticorrosive coating that drops bond in situ, reach anti-drop's function.

(2) The iron oxide powder is brownish red, so that the insulating liquid has an obvious reminding effect after flowing out.

(3) The fluff can prevent the falling of the anti-corrosion coating, and the third elastic film can extrude the adhesive in the falling process of the anti-corrosion coating, so that the adhesive flows out.

(4) The glue leakage opening can prevent a large amount of anticorrosive paint from entering the second elastic film to pollute the adhesive.

(5) The hook and the hanging ring can prevent the second elastic membrane in the extrusion state from resetting, and further prevent the second elastic membrane from sucking back the extruded adhesive again.

(6) The fluff with elasticity can pull the peeled anticorrosion coating back to the original position again, so that the peeled anticorrosion coating is bonded back to the original position.

(7) "U" template can be divided the isolation to "U" type groove for each department of anticorrosive coating splits, all has the warning function, and the inside carbon fiber of "U" template has good heat conductivity simultaneously, makes things convenient for the transformer body heat dissipation.

(8) The cotton threads can absorb the adhesive rapidly, so that the extruded adhesive can be dispersed rapidly, and the adhesion degree of the anticorrosive coating is improved.

(9) The separation net can prevent a large amount of anticorrosive paint from entering the pits in the coating process of the anticorrosive coating, and further prevent the surface of the anticorrosive paint from being uneven.

(10) The filling amount of iron powder, activated carbon, inorganic salt, gravel and water filled between the first elastic membrane and the metal mesh cylinder is less than two thirds of the volume between the first elastic membrane and the metal mesh cylinder, so that extruded insulating liquid can rapidly pass through the space between the first elastic membrane and the metal mesh cylinder, outflow cracks are formed, and the reminding efficiency is guaranteed.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a top view of a transformer body;

fig. 3 is a schematic perspective view of a transformer body;

FIG. 4 is a schematic view of the internal structure of the U-shaped groove;

FIG. 5 is a schematic view of a first elastic membrane;

FIG. 6 is a schematic view of the surface structure of the nonwoven fabric;

fig. 7 is a schematic structural view of the second elastic film.

The reference numbers in the figures illustrate:

1. a transformer body; 101. a U-shaped groove; 2. an anti-corrosion coating; 3. non-woven fabrics; 4. a metal mesh cylinder; 5. a first elastic film; 6. an insulating liquid; 7. a leakage-proof block; 8. a U-shaped plate; 9. a second elastic film; 10. fluff; 11. a third elastic film; 12. an isolation net.

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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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):

please refer to fig. 1, fig. 2 and fig. 3, a dry type transformer with coating crack reminding function, comprising a transformer body 1, wherein a plurality of U-shaped grooves 101 are formed on the surface of the transformer body 1, a plurality of U-shaped plates 8 are fixedly connected in the U-shaped grooves 101, the U-shaped plates 8 are arranged at equal intervals, a first elastic film 5 is fixedly connected at the notch of the U-shaped grooves 101, the first elastic film 5 is in an inwards concave state, a metal mesh cylinder 4 is fixedly connected on the outer side surface of the transformer body 1, a non-woven fabric 3 is fixedly connected on the surface of the metal mesh cylinder 4, and an anti-corrosion coating 2 is coated on the surface of the non-woven fabric 3.

Referring to fig. 4 and 5, iron powder, activated carbon, inorganic salts, gravels and water are filled between the first elastic film 5 and the metal mesh cylinder 4, an insulating liquid 6 is filled between the first elastic film 5 and the transformer body 1, a plurality of elastic holes are formed in the surface of the first elastic film 5, a pair of symmetrical anti-leakage blocks 7 is fixedly connected to the inner walls of the elastic holes, sealing grooves and fixed sealing blocks are respectively formed in the opposite surfaces of the two anti-leakage blocks 7, the sealing blocks are clamped with the sealing grooves, after a crack occurs in the anti-corrosion coating 2, air enters between the first mesh cylinder and the metal mesh cylinder 4, so that the filler inside reacts and releases heat, the first elastic film 5 expands to extrude the insulating liquid 6, and further, the insulating liquid 6 passes through the first elastic film 5, the metal mesh cylinder 4 and the non-woven fabric 3, thus the crack flows out, a warning effect is provided for a worker, and when the anti-corrosion coating 2 falls off, the villus 10 can avoid it to drop, and the in-process that drops simultaneously can extrude the gluing agent in the pit for anticorrosive coating 2 that drops bonds in situ reaches anti-drop's function. Inside the insulating liquid 6 is mixed with the iron oxide powder, and the iron oxide powder is brownish red for insulating liquid 6 has obvious warning effect after flowing out.

Referring to fig. 6, a plurality of pits are formed in the surface of the non-woven fabric 3, a second elastic film 11 is fixedly connected to the bottom of each pit, a plurality of piles 10 are fixedly connected to the second elastic film 11, the piles 10 can prevent the falling anticorrosive coating 2 from falling, and the second elastic film 11 can extrude the adhesive in the falling process of the anticorrosive coating 2, so that the adhesive flows out.

Referring to fig. 7, a second elastic film 9 is fixedly connected to a surface of the second elastic film 11, the second elastic film 9 is made of an elastic material, an adhesive is filled in the second elastic film 9, a plurality of adhesive leaking ports are formed in the surface of the second elastic film 9, the adhesive leaking ports are in a shape of a Chinese character 'ba', and a large amount of anticorrosive coatings can be prevented from entering the second elastic film 9 to pollute the adhesive through the adhesive leaking ports. The inner wall of one side of second elastic membrane 9 is provided with a plurality of couples, and the opposite side inner wall of second elastic membrane 9 is provided with a plurality of links, and couple and link can avoid second elastic membrane 9 under the extrusion state to reset, and then avoid second elastic membrane 9 to suck back the gluing agent of extruding once more.

Referring to fig. 6, the piles 10 are woven from elastic fibers, the top ends of the piles 10 are fixedly connected, and the piles 10 having elasticity can pull back the peeled anticorrosion coating 2 to the original position again, so that the peeled anticorrosion coating 2 is bonded to the original position.

Referring to fig. 3, the U-shaped plate 8 is made of a heat insulating material, the U-shaped plate 8 contains a plurality of carbon fibers inside, the carbon fibers are fixedly connected with the transformer body 1, and the U-shaped plate 8 can divide and isolate the U-shaped groove 101, so that each part of the anticorrosive coating 2 is cracked, and the anti-corrosion coating has a reminding function, and meanwhile, the carbon fibers inside the U-shaped plate 8 have good heat conductivity, and the transformer body 1 is convenient to dissipate heat.

Referring to fig. 6, the non-woven fabric 3 is fixedly connected with a plurality of cotton threads, the cotton threads are fixedly connected with each other, and the cotton threads can quickly absorb the adhesive, so that the extruded adhesive can be quickly dispersed, and the adhesion degree of the anticorrosive coating 2 is improved. The surface of the pit is fixedly connected with the isolation net 12, and the isolation net 12 can prevent a large amount of anticorrosive paint from entering the pit in the coating process of the anticorrosive coating 2, so that the surface of the anticorrosive paint is prevented from being uneven.

Referring to fig. 4, the filling amount of iron powder, activated carbon, inorganic salts, gravel and water filled between the first elastic membrane 5 and the metal mesh cylinder 4 is less than two thirds of the volume between the first elastic membrane 5 and the metal mesh cylinder 4, so that the extruded insulating liquid 6 can rapidly pass through the space between the first elastic membrane 5 and the metal mesh cylinder 4 and flow out of the outflow crack, and the reminding efficiency is ensured.

After the crack appears in anticorrosive coating 2, the air gets into between first net section of thick bamboo and the metal mesh section of thick bamboo 4, make the filler reaction of the inside exothermic, make 5 inflation extrusion insulating liquid 6 of first elastic membrane, and then make insulating liquid 6 pass first elastic membrane 5, metal mesh section of thick bamboo 4 and non-woven fabrics 3, thereby crack department flows, play the warning effect for the staff, when anticorrosive coating 2 drops, fine hair 10 can avoid it to drop, the in-process that drops simultaneously can extrude the gluing agent in the pit, make anticorrosive coating 2 who drops bond in situ, reach anti-drop's function. Inside the insulating liquid 6 is mixed with the iron oxide powder, and the iron oxide powder is brownish red for insulating liquid 6 has obvious warning effect after flowing out.

When the anti-corrosion coating 2 on the surface of the dry-type transformer body 1 cracks, air can penetrate through the cracks to enter a filler (iron powder, activated carbon, inorganic salt, gravel and water) between the metal mesh cylinder 4 and the first elastic membrane 5 and contact the filler, the filler reacts and releases heat when meeting oxygen, so that the air inside the first elastic membrane 5 expands and further the first elastic membrane 5 expands, the first elastic membrane 5 expands to enable the anti-leakage blocks 7 to be separated from each other, the insulating liquid 6 can flow into the space between the metal mesh cylinder 4 and the first elastic membrane 5 through the gaps between the anti-leakage blocks 7 and further penetrate through the metal mesh cylinder 4 and the non-woven fabric 3, and a reminding effect is played for workers through the crack outflow (because the insulating liquid 6 contains iron oxide powder inside, the insulating liquid 6 is brownish red, and the reminding effect is enhanced).

If anticorrosive coating 2 drops completely, fine hair 10 can play the traction effect to anticorrosive coating 2 that drops, avoid anticorrosive coating 2 to drop completely, the in-process that drops, fine hair 10 can drag third elastic film 11, third elastic film 11 can extrude second elastic film 9, thereby extrude the gluing agent in the second elastic film 9 (second elastic film 9 under the extrusion state, under the effect of couple and link, can not reset, thereby can not absorb the gluing agent of extruding once more), the gluing agent of extruding can be absorbed by the cotton thread fast, make the gluing agent can quick evenly distributed, anticorrosive coating 2 that drops is under fine hair 10 self elasticity effect, reset once more, anticorrosive coating 2 contact gluing agent after resetting, make anticorrosive coating 2 that drops can bond in situ, realize its anti-drop's function.

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.