CN211016714U - Respirator device for transformer - Google Patents
Respirator device for transformer Download PDFInfo
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- CN211016714U CN211016714U CN201922191957.XU CN201922191957U CN211016714U CN 211016714 U CN211016714 U CN 211016714U CN 201922191957 U CN201922191957 U CN 201922191957U CN 211016714 U CN211016714 U CN 211016714U
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Abstract
The utility model provides a breather device for a transformer, which comprises a first filter and a second filter which are arranged in a hollow way, a connecting pipe and an oil cup, wherein the open end of the first filter is provided with a first connecting piece, the open end of the second filter is provided with a second connecting piece, and the first connecting piece and the second connecting piece are detachably connected and arranged; the other end of the first filter is communicated with one end of a connecting pipe, and the other end of the connecting pipe is communicated with an oil pipe of the transformer; the other end of the second filter is communicated with the oil cup; the first filter and the second filter are filled with drying agents, and transformer oil is placed in the oil cup. The utility model combines the first filter, the second filter, the connecting pipe and the oil cup to form a respirator device, which can effectively dry the air entering the transformer oil pipe and avoid the moisture in the air entering the transformer to damp the transformer oil; the first filter and the second filter are detachably connected, so that the replacement efficiency of the drying agent can be effectively improved.
Description
Technical Field
The utility model relates to a transformer technical field, more specifically relates to a respirator device for transformer.
Background
The transformer breather is used for keeping the air pressure inside and outside the transformer equal by communicating the inside of the transformer with the outside, thereby preventing the transformer oil from increasing in volume due to temperature rise in high-temperature weather or full-load operation, and preventing the oil from being released to cause the oil injection of the transformer due to the rise of the internal pressure.
The existing transformer respirator generally comprises a glass cover, an upper end sealing piece, a lower end sealing piece, a glass cylinder, an air hole between cups, an oil collecting cup and a breathing air hole, wherein silica gel particles are arranged in the glass cover to serve as a drying agent. However, since the diameter of the breathing hole in the respirator is too small, it takes a lot of time to replace the silica gel particles inside the respirator, and the glass shell easily causes the surface of the respirator to be damaged, thereby losing the sealing function.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art the drier change difficult, the imperfect defect of sealed function, provide a respirator device for transformer.
In order to solve the technical problem, the technical scheme of the utility model as follows:
a breather device for a transformer comprises a first filter, a second filter, a connecting pipe and an oil cup which are arranged in a hollow manner, wherein a first connecting piece is arranged at the open end of the first filter; the other end of the first filter is communicated with one end of a connecting pipe, and the other end of the connecting pipe is communicated with an oil pipe of the transformer; the other end of the second filter is communicated with the oil cup; the first filter and the second filter are filled with drying agents, and transformer oil is placed in the oil cup.
In the technical scheme, the filter is integrally disassembled into the first filter and the second filter which are detachably connected, wherein the first connecting piece arranged at the opening end of the first filter is connected with the second connecting piece arranged at the opening end of the second filter by parts such as bolts and nuts, so that the first connecting piece and the second connecting piece can be detachably connected. When the transformer oil pipe is used, the connecting pipe communicated with the other end of the first filter is communicated with the transformer oil pipe, when the oil temperature in the transformer oil pipe rises, the volume of oil is increased under the action of thermal expansion and cold contraction, the air pressure in the transformer oil pipe is increased, and the air in the transformer oil pipe enters the first filter and the second filter through the connecting pipes under the action of the air pressure and then is discharged into the atmosphere from the oil cup; when the oil temperature in the transformer oil pipe is reduced, the volume of the oil is reduced, the air pressure in the transformer oil pipe is reduced, the air sucked by the transformer through the respirator reaches the internal air pressure balance, and the air is sucked into the transformer oil pipe after being dried by the drying agents filled in the first filter and the second filter, so that the moist air is prevented from directly entering the transformer oil pipe, and the transformer oil is moistened. When the drying agent filled in the filter needs to be replaced, the drying agent can be replaced only by detaching the first connecting piece and the second connecting piece.
Preferably, the surfaces of the first connecting piece and the second connecting piece are respectively provided with a groove position, and a sealing strip is arranged in the groove position and used for enhancing the sealing performance of the first filter and the second filter.
Preferably, the outer surfaces of the first filter and the second filter are respectively provided with an observation window for the operation and maintenance personnel to detect the height and the color change condition of the drying agent through the observation windows, so as to judge whether the drying agent needs to be replaced.
Preferably, the desiccant includes, but is not limited to, silica gel particles.
Preferably, the other end of the connecting pipe is provided with a third connecting piece fixedly connected with the transformer oil pipe, and the upper surface of the third connecting piece is provided with a slot; the device also comprises a sealing ring, wherein a sealing strip matched with the groove position is arranged on the surface of the sealing ring; the outer diameter of the sealing ring is the same as the inner diameter of the transformer oil pipe. The third connecting piece is used as a mounting surface between the third connecting piece and the transformer oil pipe and is fixedly mounted with the transformer oil pipe, and the sealing ring is used in cooperation with the third connecting piece to enhance the sealing performance between the third connecting piece and the transformer oil pipe.
Preferably, the connecting pipe is internally provided with vent holes which are uniformly distributed and used for gas circulation and blocking the desiccant from entering the transformer oil pipe.
Preferably, the other end of the second filter is provided with an oil cup mounting opening, and an opening of the oil cup mounting opening is provided with external thread; one end of the oil cup is provided with an inner thread, and the oil cup is in threaded connection with an outer thread of the oil cup mounting opening through the inner thread, so that the oil cup and the second filter are fixedly mounted.
Preferably, an oil diving pipe is arranged in the oil cup mounting opening, one end of the oil diving pipe is communicated with the interior of the second filter, and the other end of the oil diving pipe is arranged below the oil surface of the transformer in the oil cup. The oil-submersible pipe is used for leading the air channel to the lower part of transformer oil of the oil cup, and prevents the drying agent from being in direct contact with air for a long time, so that the service life of the drying agent is prolonged.
Preferably, the oil cup mounting opening is internally provided with vent holes which are uniformly distributed and used for the circulation of gas and simultaneously blocking the desiccant from entering the oil cup.
Preferably, one side of the vent hole is provided with a filter screen for further preventing the desiccant from entering the transformer oil pipe or the oil cup.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is: the respirator device is formed by combining the first filter, the second filter, the connecting pipe and the oil cup, so that air entering the transformer oil pipe can be effectively dried, and the transformer oil is prevented from being damped due to the fact that moisture in the air enters the transformer; the first filter and the second filter are detachably connected, so that the replacement efficiency of the drying agent can be effectively improved, and the work difficulty of drying agent replacement is reduced.
Drawings
Fig. 1 is a schematic structural view of a respirator device for a transformer according to embodiment 1.
Fig. 2 is an exploded view of a respirator device for a transformer according to example 2.
Fig. 3 is a schematic structural view of a seal ring according to embodiment 2.
Fig. 4 is a plan view of a respirator device for a transformer according to example 2.
Fig. 5 is an exploded view of a respirator assembly for a transformer according to example 3.
Fig. 6 is a bottom view of the respirator assembly for a transformer according to example 3.
The oil pump comprises a first filter 1, a first connecting piece 11, a slot 12, a second filter 2, a second connecting piece 21, a slot 22, an oil cup mounting opening 23, an air vent 24, a connecting pipe 3, a third connecting piece 31, a slot 32, an air vent 33, an oil cup 4, a sealing strip 5, an observation window 6, a sealing ring 7, a sealing strip 71 and an oil diving pipe 8.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Example 1
The present embodiment provides a respirator device for a transformer, which is a schematic structural diagram of the respirator device for a transformer of the present embodiment, as shown in fig. 1.
The respirator device for the transformer provided by the embodiment comprises a first filter 1 and a second filter 2 which are arranged in a hollow manner, a connecting pipe 3 and an oil cup 4, wherein a first connecting piece 11 is arranged at the open end of the first filter 1, a second connecting piece 21 is arranged at the open end of the second filter 2, and the first connecting piece 11 and the second connecting piece 21 are detachably connected; the other end of the first filter 1 is communicated with one end of a connecting pipe 3, and the other end of the connecting pipe 3 is communicated with a transformer oil pipe of a breather device for a transformer to be installed; the other end of the second filter 2 is communicated with the oil cup 4; the first filter 1 and the second filter 2 are filled with drying agents, and transformer oil is placed in the oil cup 4.
In this embodiment, a groove 12/22 is respectively formed in the surfaces of the first connecting member 11 and the second connecting member 21, a sealing strip 5 is disposed in the groove 12/22, the sealing property inside the first filter 1 and the second filter 2 is enhanced, and the groove 12/22 is used for placing the sealing strip 5, so that the sealing property of the sealing strip 5 is lost.
In this embodiment, the outer surfaces of the first filter 1 and the second filter 2 are respectively provided with an observation window 6, so that the operation and maintenance personnel can detect the height and the color change condition of the drying agent through the observation window 6, and can judge whether the drying agent needs to be replaced.
In this embodiment, the desiccant filled in the first filter 1 and the second filter 2 is silica gel particles.
In this embodiment, the first filter 1 and the second filter 2 are hollow, the first filter 1 and the second filter 2 are bell-jar-shaped, the first connecting member 11 and the second connecting member 21, which are respectively disposed at the opening positions, are connecting flanges, and the connecting flanges are provided with a plurality of screw holes, and the first connecting member 11 and the second connecting member 21 are detachably connected through the screw holes provided thereon by using parts such as nuts and bolts.
In the specific implementation process, the connecting pipe 3 is connected with the transformer oil pipe, and the first connecting piece 11 and the second connecting piece 21 which are arranged on the first filter 1 and the second filter 2 through the openings of the first filter and the second filter are fastened and connected by using parts such as nuts, bolts and the like, so that the respirator device is installed.
In the using process, the respirator device is communicated with the transformer oil pipe through the connecting pipe 3, when the oil temperature in the transformer oil pipe rises, the volume of the oil is increased under the action of thermal expansion and cold contraction, the air pressure in the transformer oil pipe is increased, and the air in the transformer oil pipe enters the first filter 1 and the second filter 2 through the connecting pipes under the action of the air pressure and then is exhausted into the atmosphere from the oil cup 4; when the oil temperature in the transformer oil pipe is reduced, the volume of the oil is reduced, the air pressure in the transformer oil pipe is reduced, the transformer sucks air through a respirator to achieve internal air pressure balance, the air filters dust and impurities in the air through the transformer oil in the oil cup 4, and the air is sucked into the transformer oil pipe after being dried through the drying agents filled in the first filter 1 and the second filter 2, so that moist air is prevented from directly entering the transformer oil pipe, and the transformer oil is prevented from being wetted.
The operation and maintenance personnel can observe the use condition of the drying agents inside through the observation windows 5 arranged on the outer surfaces of the first filter 1 and the second filter 2, and then judge whether the drying agents need to be replaced. When the drying agents filled in the first filter 1 and the second filter 2 need to be replaced, the drying agents can be replaced only by detaching the first connecting piece 11 and the second connecting piece 21.
Example 2
This embodiment proposes a breather device for a transformer, which is an exploded view of the breather device for a transformer of this embodiment, as shown in fig. 2.
In the breather device for a transformer provided in this embodiment, on the basis of the breather device for a transformer provided in embodiment 1, in this embodiment, a third connecting member 31 fixedly connected to an oil pipe of the transformer is disposed at the other end of the connecting pipe 3, and a slot 32 is disposed on an upper surface of the third connecting member 3; the device also comprises a sealing ring 7, wherein a sealing strip 71 matched with the groove position 32 is arranged on the surface of the sealing ring 7; the outer diameter of the sealing ring 7 is the same as the inner diameter of the transformer oil pipe. The third connecting piece 3 adopts a mounting flange and is used as a mounting surface between the connecting pipe 3 and the transformer oil pipe, a plurality of threaded holes are formed in the surface of the mounting flange, and the third connecting piece 3 adopts parts such as bolts, nuts and the like to be connected and fixed with the transformer oil pipe through the formed threaded holes; the sealing ring 7 is used for being matched with the third connecting piece 31 for use, the sealing performance between the third connecting piece 31 and the transformer oil pipe is enhanced, and the sealing ring 7 is matched with the size of the port of the transformer oil pipe. Fig. 3 is a schematic structural view of the seal ring of the present embodiment.
In this embodiment, the connecting pipe 3 is provided with uniformly distributed vent holes 33 for gas circulation and blocking the desiccant from entering the transformer oil pipe. Fig. 4 is a plan view of the respirator device for a transformer according to the present embodiment.
In the specific implementation process, the connecting pipe 3 is fastened and connected with the transformer oil pipe through the third connecting piece 31 arranged at the other end of the connecting pipe by using parts such as nuts and bolts, and the first connecting piece 11 and the second connecting piece 21 arranged on the first filter 1 and the second filter 2 through the openings of the first filter and the second filter are fastened and connected by using parts such as nuts and bolts, so that the installation of the respirator device is completed.
In the using process, the respirator device is communicated with the transformer oil pipe through the connecting pipe 3, when the oil temperature in the transformer oil pipe rises, the volume of the oil is increased under the action of thermal expansion and cold contraction, the air pressure in the transformer oil pipe is increased, and the air in the transformer oil pipe enters the first filter 1 and the second filter 2 through the connecting pipes under the action of the air pressure and then is exhausted into the atmosphere from the oil cup 4; when the oil temperature in the transformer oil pipe is reduced, the volume of the oil is reduced, the air pressure in the transformer oil pipe is reduced, the transformer sucks air through a respirator to achieve internal air pressure balance, the air filters dust and impurities in the air through the transformer oil in the oil cup 4, and the air is sucked into the transformer oil pipe after being dried through the drying agents filled in the first filter 1 and the second filter 2, so that moist air is prevented from directly entering the transformer oil pipe, and the transformer oil is prevented from being wetted. When the drying agents filled in the first filter 1 and the second filter 2 need to be replaced, the drying agents can be replaced only by detaching the first connecting piece 11 and the second connecting piece 21.
In the embodiment, the third connecting piece 3 is additionally arranged at the end part of the connecting pipe 3 and is connected with the transformer oil pipe, so that the breather device for the transformer can be better installed and connected with the transformer oil pipe, and the firm installation of the breather device is ensured.
Example 3
This example proposes a breather device for a transformer, and is an exploded view of the breather device for a transformer of example 3, as shown in fig. 5.
In the breather device for a transformer proposed in the present example, in addition to the breather device for a transformer proposed in example 2, an oil cup attachment port 23 is opened at the other end of the second filter 2. Wherein, the opening of the oil cup mounting port 23 is provided with external thread; one end of the oil cup 4 is provided with an inner thread, and the oil cup 4 is in threaded connection with the outer thread of the oil cup mounting opening 23 through the inner thread, so that the oil cup 4 and the second filter 2 are fixedly mounted.
In this embodiment, an oil diving pipe 8 is arranged in the oil cup mounting opening 23, one end of the oil diving pipe 8 is communicated with the inside of the second filter 2, and the other end of the oil diving pipe 8 is arranged below the oil surface of the transformer in the oil cup 4. The oil-submersible pipe 8 is used for leading an air channel to the lower part of transformer oil of the oil cup 4, and prevents the drying agent from being in direct contact with air for a long time, so that the service life of the drying agent is prolonged.
In this embodiment, the oil cup mounting opening 23 is provided with uniformly distributed vent holes 24 for gas circulation and blocking the desiccant from entering the oil cup 4.
Fig. 6 is a bottom view of the respirator device for a transformer according to the present embodiment. The connection relationship of the oil cup mounting port 23, the oil-submersible pipe 8 and the vent hole 24 of the breather device for a transformer of the present embodiment can be seen.
In this embodiment, a filter is disposed on one side of the vent 24/33 to further prevent the desiccant from entering the transformer oil tube or oil cup 4.
In the specific implementation process, the connecting pipe 3 is fixedly connected with the transformer oil pipe through a third connecting piece 31 arranged at the other end of the connecting pipe by adopting parts such as nuts, bolts and the like; the first filter 1 and the second filter 2 are fastened and connected through a first connecting piece 11 and a second connecting piece 21 which are arranged on the openings of the first filter and the second filter by adopting parts such as nuts, bolts and the like; and the oil cup 4 is in threaded connection with the outer thread of the oil cup mounting opening 23 through the inner thread arranged at the end part of the oil cup 4, so that the oil cup 4 and the second filter 2 are fixedly mounted, namely the respirator device is mounted.
In the using process, the respirator device is communicated with the transformer oil pipe through the connecting pipe 3, when the oil temperature in the transformer oil pipe rises, the volume of the oil is increased under the action of thermal expansion and cold contraction, the air pressure in the transformer oil pipe is increased, and the air in the transformer oil pipe enters the first filter 1 and the second filter 2 through the connecting pipes under the action of the air pressure and then is exhausted into the atmosphere from the oil cup 4; when the oil temperature in the transformer oil pipe is reduced, the volume of the oil is reduced, the air pressure in the transformer oil pipe is reduced, the transformer sucks air through a respirator to achieve internal air pressure balance, the air filters dust and impurities in the air through the transformer oil in the oil cup 4, and the air is sucked into the transformer oil pipe after being dried through the drying agents filled in the first filter 1 and the second filter 2, so that moist air is prevented from directly entering the transformer oil pipe, and the transformer oil is prevented from being wetted. When the drying agents filled in the first filter 1 and the second filter 2 need to be replaced, the drying agents can be replaced only by detaching the first connecting piece 11 and the second connecting piece 21.
In this embodiment, oil cup 4 carries out threaded connection through the oil cup installing port 23 that the second filter 2 other end was seted up, realize oil cup 4 and the second filter 2 between demountable installation, when needs change the transformer oil in oil cup 4, the accessible makes it and the pine of oil cup installing port 23 take off, and then changes oil cup 4. The oil diving pipe 8 which is additionally arranged extends into the lower part of the oil level of the oil cup 4 to realize oil sealing, so that the moisture in the air is further prevented from entering the first filter 1 and the second filter 2.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A respirator device for a transformer is characterized in that: the oil filter comprises a first filter, a second filter, a connecting pipe and an oil cup which are arranged in a hollow manner, wherein a first connecting piece is arranged at the opening end of the first filter, a second connecting piece is arranged at the opening end of the second filter, and the first connecting piece and the second connecting piece are detachably connected; the other end of the first filter is communicated with one end of a connecting pipe, and the other end of the connecting pipe is communicated with an oil pipe of the transformer; the other end of the second filter is communicated with the oil cup; the first filter and the second filter are filled with drying agents, and transformer oil is placed in the oil cup.
2. The respirator device for a transformer according to claim 1, wherein: the surface of the first connecting piece and the surface of the second connecting piece are respectively provided with a groove position, and a sealing strip is arranged in the groove position.
3. The respirator device for a transformer according to claim 1, wherein: and the outer surfaces of the first filter and the second filter are respectively provided with an observation window.
4. The respirator device for a transformer according to claim 1, wherein: the desiccant includes, but is not limited to, silica gel particles.
5. The respirator device for a transformer according to claim 1, wherein: the other end of the connecting pipe is provided with a third connecting piece fixedly connected with an oil pipe of the transformer, and the upper surface of the third connecting piece is provided with a groove position; the device also comprises a sealing ring, wherein a sealing strip matched with the groove position is arranged on the surface of the sealing ring; the outer diameter of the sealing ring is the same as the inner diameter of the transformer oil pipe.
6. The respirator assembly for a transformer of claim 5, wherein: the connecting pipe is internally provided with vent holes which are uniformly distributed.
7. The respirator device for a transformer according to claim 1, wherein: an oil cup mounting opening is formed in the other end of the second filter, and external thread is arranged on an opening of the oil cup mounting opening; one end of the oil cup is provided with an internal thread, and the oil cup is in threaded connection with the oil cup mounting opening.
8. The respirator assembly for a transformer of claim 7, wherein: an oil diving pipe is arranged in the oil cup mounting opening, one end of the oil diving pipe is communicated with the interior of the second filter, and the other end of the oil diving pipe is arranged below the oil surface of the transformer in the oil cup.
9. The respirator assembly for a transformer of claim 7, wherein: and vent holes which are uniformly distributed are formed in the oil cup mounting opening.
10. A respirator assembly for a transformer according to claim 6 or 9, wherein: and a filter screen is arranged on one side of the vent hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922191957.XU CN211016714U (en) | 2019-12-09 | 2019-12-09 | Respirator device for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922191957.XU CN211016714U (en) | 2019-12-09 | 2019-12-09 | Respirator device for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211016714U true CN211016714U (en) | 2020-07-14 |
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ID=71477690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922191957.XU Active CN211016714U (en) | 2019-12-09 | 2019-12-09 | Respirator device for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211016714U (en) |
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2019
- 2019-12-09 CN CN201922191957.XU patent/CN211016714U/en active Active
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