CN112216477B - Main transformer respirator with rain-proof cover - Google Patents
Main transformer respirator with rain-proof cover Download PDFInfo
- Publication number
- CN112216477B CN112216477B CN202010992997.9A CN202010992997A CN112216477B CN 112216477 B CN112216477 B CN 112216477B CN 202010992997 A CN202010992997 A CN 202010992997A CN 112216477 B CN112216477 B CN 112216477B
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- glass cover
- casting flange
- lower casting
- main transformer
- positioning part
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention provides a main transformer respirator with a rain cover, and belongs to the field of power equipment. The main transformer respirator comprises a glass cover and a lower casting flange, wherein the lower casting flange is positioned below the glass cover and is fixed relative to the glass cover, the main transformer respirator also comprises a sealing element, the sealing element comprises an upper positioning part and an inclined part used for guiding rainwater outwards, the sealing element is sleeved outside the glass cover and the lower casting flange, the inner surface of the upper positioning part and the outer surface of the glass cover are in interference fit to be fixed relative to the glass cover, and the upper positioning part is positioned at one end, close to the lower casting flange, of the glass cover.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a main transformer respirator with a rain cover, and belongs to the field of power equipment.
[ background of the invention ]
The breather is an important part of a power transformer oil conservator and is arranged at the tail end of a pipeline for communicating the oil conservator with air. When the temperature of the transformer oil rises, the oil in the oil tank expands correspondingly, so that the oil level in the oil conservator rises correspondingly, and at the moment, part of gas in the oil conservator is discharged through a breather; when the temperature of the transformer oil drops, the oil in the oil tank correspondingly shrinks, the oil level in the oil conservator also correspondingly drops, and at the moment, partial gas is sucked in the oil conservator. The transformer discharges or inhales air through the respirator to form normal respiration, and the pressure balance of the transformer oil tank is kept. Meanwhile, the silica gel in the breather can absorb moisture in air entering the oil conservator, so that the air in the oil conservator is kept dry, and the insulating oil of the transformer is prevented from being damped.
However, the main transformer respirator is usually exposed outdoors, and inevitably suffers from erosion of high temperature, rain water, harmful gas and the like, and the service life of the silica gel of the respirator is reduced due to the fact that the common main transformer respirator is prone to water seepage from the sealing ring between the glass cover and the lower casting flange, and the service life of the respirator is shortened.
[ summary of the invention ]
The invention aims to provide a main transformer respirator with a rain cover, so that the service life of the respirator can be prolonged.
In order to solve the technical problem, the main transformer respirator with the rain cover comprises a glass cover and a lower casting flange, wherein the lower casting flange is positioned below the glass cover and is fixed relative to the glass cover, the main transformer respirator further comprises a sealing element, the sealing element comprises an upper positioning part and an inclined part used for guiding rainwater outwards, the sealing element is sleeved outside the glass cover and the lower casting flange, the inner surface of the upper positioning part and the outer surface of the glass cover are in interference fit to be fixed relative to the glass cover, and the upper positioning part is positioned at one end, close to the lower casting flange, of the glass cover.
Preferably, the bottom surface of the sealing element is in interference fit with the upper surface of the lower casting flange, the upper positioning portion, the bottom surface of the sealing element, the outer surface of the glass cover and the upper surface of the lower casting flange form a cavity together, and the position where the glass cover is connected with the lower casting flange is located in the cavity.
Preferably, the upper positioning part is in interference fit with the outer surface of the lower casting flange so as to seal the position where the glass cover is connected with the lower casting flange.
Preferably, an interference fit is formed between the inner surface of the inclined portion and the outer surface of the lower casting flange, and the upper positioning portion and the inclined portion jointly seal the position where the glass cover is connected with the lower casting flange.
Preferably, the inclined portion has a trapezoidal cross section.
Preferably, the sealing element further comprises a lower positioning portion and a connecting portion, wherein the lower positioning portion and the connecting portion are in interference fit with the outer surface of the lower casting flange, one end of the connecting portion is connected with the lower positioning portion, the other end of the connecting portion is connected with the inclined portion, the upper positioning portion, the inclined portion, the connecting portion, the lower positioning portion, the outer surface of the glass cover and the outer surface of the lower casting flange jointly form a closed cavity, and the position, connected with the lower casting flange, of the glass cover is located in the cavity.
Preferably, the connecting portion is an elastic member.
Preferably, the sealing member is nitrile rubber.
Preferably, the inclined portion is located below the upper positioning portion, and an included angle between the inclined portion and the upper positioning portion is an obtuse angle.
Preferably, the inclined portion is annular.
The invention has the beneficial effects that:
through interference fit between the inner surface of the upper positioning portion and the outer surface of the glass cover, the sealing piece can be fixed on the glass cover, the inclined portion can guide rainwater outwards, rainwater is prevented from permeating into the respirator from the position where the glass cover is connected with the lower casting flange, the service life of the respirator is further prolonged, the upper positioning portion is located at the position, close to one end of the lower casting flange, of the glass cover, the inclined portion can prevent the sealing piece from blocking sight when the sealing piece is located in the middle or on the upper portion of the glass cover, and the observation of objects in the glass cover by workers is influenced.
These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.
[ description of the drawings ]
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic view of a main transformer respirator according to an embodiment;
FIG. 2 is a schematic view of a seal in a primary breather according to an embodiment;
FIG. 3 is a schematic view of the bottom surface of the seal in contact with the upper surface of the lower casting flange according to one embodiment;
FIG. 4 is an enlarged schematic view of FIG. 3 at A;
FIG. 5 is a schematic view of a second main transformer respirator of the embodiment;
FIG. 6 is an enlarged schematic view of FIG. 5 at D;
FIG. 7 is a schematic view of a three main transformer respirator of an embodiment;
FIG. 8 is an enlarged schematic view at B of FIG. 7;
FIG. 9 is a schematic view of a four primary respirator of an embodiment;
fig. 10 is an enlarged schematic view at C of fig. 9.
[ detailed description ] embodiments
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
In the following description, the terms such as "inner", "outer", "upper", "lower", "left", "right", etc., which indicate orientations or positional relationships, are used to indicate orientations or positional relationships based on the drawings, and are only used for convenience in describing embodiments and for simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 4, a preferred structure of a main transformer respirator with a rain cover in the present embodiment includes a glass cover 1 and a lower casting flange 5, where the lower casting flange 5 is located below the glass cover 1 and fixed relative to the glass cover 1, the main transformer respirator further includes a sealing member 2, the sealing member 2 includes an upper positioning portion 3 and an inclined portion 4 for guiding rainwater outwards, the sealing member 2 is sleeved outside the glass cover 1 and the lower casting flange 5, an interference fit is provided between an inner surface of the upper positioning portion 3 and an outer surface of the glass cover 1 to fix relative to the glass cover 1, and the upper positioning portion 3 is located at one end of the glass cover 1 close to the lower casting flange 5.
The invention has the beneficial effects that:
through interference fit between the inner surface of the upper positioning part 3 and the outer surface of the glass cover 1, the sealing part 2 can be fixed on the glass cover 1, so that the inclined part 4 can guide rainwater outwards to prevent rainwater from permeating into the respirator from the position where the glass cover 1 is connected with the lower casting flange 5, and further the service life of the respirator is prolonged, the upper positioning part 3 is located at the position where the glass cover 1 is close to the lower casting flange 5, and when the sealing part 2 is located in the middle or on the upper part of the glass cover 1, the inclined part 4 shields the sight line to influence a worker to observe objects in the glass cover 1.
In order to make the sealing member 2 capable of sealing the position where the glass cover 1 is connected to the lower casting flange 5, the present embodiment preferably has the bottom surface of the sealing member 2 interference-fitted with the upper surface of the lower casting flange 5, the upper positioning part 3, the bottom surface of the sealing piece 2, the outer surface of the glass cover 1 and the upper surface of the lower casting flange 5 form a cavity together, the position where the glass cover 1 is connected with the lower casting flange 5 is positioned in the cavity, by adopting the structure, the bottom of the sealing element 2 is solid, make sealing member 2 bottom surface can sticis the upper surface of casting flange 5 down, and sealing member 2 can be sealed the position that glass cover 1 and casting flange 5 link to each other down through the cavity this moment, prevents that rainwater and moisture from getting into in glass cover 1 from the position that glass cover 1 and casting flange 5 link to each other down to the leakproofness of respirator has been increased, and then has increased the life of respirator.
In order to make sealing member 2 more firm when fixed, this embodiment is preferred sealing member 2 is rubber spare or silica gel spare, adopts behind rubber spare or the silica gel spare, through the elasticity attribute that material self has, can be so that sealing member 2 more firm when fixed, and sealed effect is better.
In order to further enable the sealing element 2 to be more firmly fixed, in this embodiment, the sealing element 2 is preferably nitrile rubber, and the nitrile rubber is mainly produced by a low-temperature emulsion polymerization method, so that the oil resistance is excellent, the wear resistance is high, the heat resistance is high, and the bonding force is strong. The disadvantages are poor low temperature resistance, ozone resistance, poor insulation properties and slightly low elasticity. The nitrile rubber is mainly used for manufacturing oil-resistant rubber products, NBR for short, and the nitrile rubber can be used for achieving better sealing effect and more attractive appearance.
In order to allow rainwater to flow outward along the surface of the inclined portion 4, the present embodiment preferably positions the inclined portion 4 below the upper positioning portion 3 and forms an obtuse angle with the upper positioning portion 3, so that rainwater can flow outward along the surface of the inclined portion 4, preventing rainwater from flowing into the glass cover 1.
In order to further prevent rainwater from flowing into the glass cover 1, in the present embodiment, it is preferable that the inclined portion 4 is annular, and when the inclined portion 4 is annular, rainwater in the circumferential direction of the glass cover 1 flows out along the inclined portion 4, thereby preventing rainwater from flowing into the glass cover 1.
Example two:
the difference between this embodiment and the first embodiment is that, as shown in fig. 5 and fig. 6, in this embodiment, the upper positioning portion 3 is also in interference fit with the outer surface of the lower casting flange 5 to seal the position where the glass cover 1 is connected to the lower casting flange 5, and with this structure, the positioning portion is in contact with both the glass cover 1 and the lower casting flange 5, so that the sealing member 2 can seal the position where the glass cover 1 is connected to the lower casting flange 5.
Example three:
the difference between this embodiment and the first embodiment is that, as shown in fig. 7 and fig. 8, in this embodiment, an interference fit is formed between the inner surface of the inclined portion 4 and the outer surface of the lower casting flange 5, and the upper positioning portion 3 and the inclined portion 4 jointly seal the position where the glass cover 1 is connected to the lower casting flange 5, with this structure, the inclined portion 4 is solid, so that the position where the glass cover 1 is connected to the lower casting flange 5 can be sealed, and this embodiment can also achieve the technical effects described in the first embodiment.
Example four:
the difference between the present embodiment and the first embodiment is that, as shown in fig. 9 and fig. 10, in the present embodiment, the sealing member 2 further includes a lower positioning portion 6 and a connecting portion, which are in interference fit with the outer surface of the lower casting flange 5, one end of the connecting portion is connected to the lower positioning portion, the other end is connected to the inclined portion 4, the upper positioning portion 3, the inclined portion 4, the connecting portion, the lower positioning portion, the outer surface of the glass cover 1 and the outer surface of the lower casting flange 5 jointly form a sealed cavity, and the position where the glass cover 1 is connected to the lower casting flange 5 is located in the cavity.
In order to make the installation of the density member more convenient, the connection portion is preferably an elastic member in this embodiment, and the position of the sealing member 2 can be adjusted when the sealing member is installed through the elastic deformation of the connection member, so that the installation of the density member is more convenient.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the invention as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (6)
1. The utility model provides a main breathing ware that becomes with rain-proof cover, includes glass cover and lower casting flange, the lower casting flange is located the below of glass cover and for the glass cover is fixed its characterized in that: the main transformer respirator also comprises a sealing element, the sealing element comprises an upper positioning part and an inclined part used for guiding rainwater outwards, the sealing element is sleeved outside the glass cover and the lower casting flange, the inner surface of the upper positioning part and the outer surface of the glass cover are in interference fit to be fixed relative to the glass cover, and the upper positioning part is positioned at one end, close to the lower casting flange, of the glass cover; the sealing element further comprises a lower positioning part and a connecting part, wherein the lower positioning part and the connecting part are in interference fit with the outer surface of the lower casting flange, one end of the connecting part is connected with the lower positioning part, the other end of the connecting part is connected with the inclined part, the upper positioning part, the inclined part, the connecting part, the lower positioning part, the outer surface of the glass cover and the outer surface of the lower casting flange jointly form a closed cavity, and the position where the glass cover is connected with the lower casting flange is located in the cavity; the connecting part is an elastic part; the internal surface of slope with be interference fit between the surface of casting flange down, go up location portion with the slope seals jointly the glass cover with the position that casting flange links to each other down, the slope is solid, makes the glass cover realize sealedly with the position that casting flange links to each other down.
2. The main transformer respirator with the rain cover of claim 1, wherein: and the upper positioning part is also in interference fit with the outer surface of the lower casting flange so as to seal the position where the glass cover is connected with the lower casting flange.
3. The main transformer respirator with the rain cover of claim 1, wherein: the sealing member is a rubber member or a silica gel member.
4. The main transformer respirator with the rain cover of claim 3, wherein: the sealing element is nitrile rubber.
5. The main transformer respirator with the rain cover of claim 1, wherein: the inclined part is positioned below the upper positioning part, and an included angle between the inclined part and the upper positioning part is an obtuse angle.
6. The main transformer respirator with the rain cover of claim 1, wherein: the inclined portion is annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010992997.9A CN112216477B (en) | 2020-09-21 | 2020-09-21 | Main transformer respirator with rain-proof cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010992997.9A CN112216477B (en) | 2020-09-21 | 2020-09-21 | Main transformer respirator with rain-proof cover |
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| Publication Number | Publication Date |
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| CN112216477A CN112216477A (en) | 2021-01-12 |
| CN112216477B true CN112216477B (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010992997.9A Active CN112216477B (en) | 2020-09-21 | 2020-09-21 | Main transformer respirator with rain-proof cover |
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| CN (1) | CN112216477B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201221047Y (en) * | 2008-06-20 | 2009-04-15 | 上海浦江缆索股份有限公司 | Rainproof case sealing structure for stayed cable |
| CN104867659A (en) * | 2015-04-29 | 2015-08-26 | 国网辽宁省电力有限公司大连供电公司 | Transformer breather |
| JP2015176834A (en) * | 2014-03-18 | 2015-10-05 | 大成建設株式会社 | Rainproof cover for preventing electrical leak |
| CN204857382U (en) * | 2015-07-29 | 2015-12-09 | 国家电网公司 | Rain -proof cover of outdoor transformer respirator |
| CN207732550U (en) * | 2017-12-29 | 2018-08-14 | 浙江元华风机有限公司 | A kind of improved blower motor rain cover of structure |
| CN208271798U (en) * | 2018-05-29 | 2018-12-21 | 江苏神马电力股份有限公司 | Gas casing rain cover and gas casing |
| CN208781658U (en) * | 2018-08-02 | 2019-04-23 | 仪征裕能变压器有限公司 | A kind of oil-immersed power transformer dehydrating breather |
| CN208845804U (en) * | 2018-09-21 | 2019-05-10 | 洪湖市蓝天安环节能设备有限公司 | A kind of emergency relief valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5737222B2 (en) * | 2012-05-22 | 2015-06-17 | 住友電装株式会社 | Waterproof cover |
| CN208241757U (en) * | 2018-06-05 | 2018-12-14 | 界首市无限智能电子科技有限公司 | A kind of monitoring device with rainproof function |
| CN110847037A (en) * | 2019-11-26 | 2020-02-28 | 重庆万桥交通科技发展有限公司 | Rainproof sealing device |
| CN111383854A (en) * | 2020-02-25 | 2020-07-07 | 国网浙江桐庐县供电有限公司 | Rainproof cover for transmission connecting rod and installation method of rainproof cover |
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2020
- 2020-09-21 CN CN202010992997.9A patent/CN112216477B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201221047Y (en) * | 2008-06-20 | 2009-04-15 | 上海浦江缆索股份有限公司 | Rainproof case sealing structure for stayed cable |
| JP2015176834A (en) * | 2014-03-18 | 2015-10-05 | 大成建設株式会社 | Rainproof cover for preventing electrical leak |
| CN104867659A (en) * | 2015-04-29 | 2015-08-26 | 国网辽宁省电力有限公司大连供电公司 | Transformer breather |
| CN204857382U (en) * | 2015-07-29 | 2015-12-09 | 国家电网公司 | Rain -proof cover of outdoor transformer respirator |
| CN207732550U (en) * | 2017-12-29 | 2018-08-14 | 浙江元华风机有限公司 | A kind of improved blower motor rain cover of structure |
| CN208271798U (en) * | 2018-05-29 | 2018-12-21 | 江苏神马电力股份有限公司 | Gas casing rain cover and gas casing |
| CN208781658U (en) * | 2018-08-02 | 2019-04-23 | 仪征裕能变压器有限公司 | A kind of oil-immersed power transformer dehydrating breather |
| CN208845804U (en) * | 2018-09-21 | 2019-05-10 | 洪湖市蓝天安环节能设备有限公司 | A kind of emergency relief valve |
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| Publication number | Publication date |
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| CN112216477A (en) | 2021-01-12 |
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