CN213092960U - Fully-sealed transformer protective cover - Google Patents
Fully-sealed transformer protective cover Download PDFInfo
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- CN213092960U CN213092960U CN202021798178.2U CN202021798178U CN213092960U CN 213092960 U CN213092960 U CN 213092960U CN 202021798178 U CN202021798178 U CN 202021798178U CN 213092960 U CN213092960 U CN 213092960U
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- protective cover
- transformer
- box body
- oil tank
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Abstract
A fully-sealed transformer protective cover comprises a protective cover box body and a high-voltage cable inlet box which are arranged at the upper part of a transformer oil tank, wherein the bottom of the protective cover is provided with a flange interface which is matched and arranged with a transformer bushing lifting seat and the high-voltage cable inlet box; the inner side of the bottom of the protective cover box body is matched and installed with a transformer bushing lifting seat on the upper part of a transformer oil tank through a flange interface, and the bottom surface of the protective cover box body, which extends out of the outer side of the transformer oil tank main body, is connected with a protective cover support frame I fixedly installed on the side face of the transformer oil tank main body through a support rod; the high-voltage cable inlet box is hoisted at the bottom of the protective cover box body extending out of the outer side of the transformer oil tank main body and is installed in a matched mode with the box body through a flange interface II, a large-area observation window is arranged in the front of the box body, and side operation manholes for operating transformer bushings are arranged on the left side and the right side of the box body and are configured with flange seals. The protective cover is convenient to operate, greatly reduces the weight, saves steel, is internally provided with the moisture absorber, can keep air dry, and improves the safety performance.
Description
Technical Field
The utility model relates to a transformer component, concretely relates to totally enclosed transformer protection casing.
Background
The transformer protective cover is an important accessory of the transformer, is arranged on the upper part of the transformer, has the functions of protecting a transformer bushing lifting seat at the top end of the transformer, a high-voltage cable inlet wire and a supporting insulator for supporting the high-voltage cable inlet wire from being polluted by rainwater, sand dust and gas, and can also effectively avoid accidental electric shock of animals, and is particularly important in severe environment areas such as rainy days, acid rain and the like and areas with frequent activities of birds and small animals; and secondly, the careless manual operation and accidental electric shock are prevented.
The existing transformer protective cover adopts a structure similar to an oil tank of an oil-immersed transformer: the protective cover box body is formed by bending and welding steel plates, welding flanges and flange cover plates are arranged at the front end and the rear end of the protective cover box body, and 2 holes are formed in the bottom of the protective cover and matched with the flanges, and are respectively used for connecting the sleeve lifting seat and the cable inlet box (as shown in figure 2).
There are problems in that:
(1) in order to ensure that the protective cover is not deformed, the protective cover box body needs to be welded by a thicker steel plate to form the protective cover (a steel plate with the thickness of 6mm is selected conventionally), so that the protective cover is too heavy, the installation of the transformer is greatly influenced, a large amount of steel and welding materials are consumed, and the problem of deformation of the box wall cannot be completely avoided;
(2) the flange at the front part of the protective cover needs to be matched with the protective cover box body, the cover plate arranged at the front part of the protective cover is equivalent to one surface of the whole box wall, the cover plate has large area and is inconvenient to disassemble, and after the cover plate is disassembled, people have a long distance to the sleeve, so that the sleeve cannot be conveniently operated;
(3) the part of the protective cover extending out of the main body of the transformer oil tank is supported by the cable inlet box, so that the cable inlet box which only plays a role of shielding the cable is required to be thick (generally, a steel plate with the thickness of not less than 4 mm) in order to avoid deformation under the heavy pressure of the protective cover.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a totally enclosed transformer protection casing to overcome the above-mentioned not enough that prior art exists.
For solving the above technical problem, the utility model discloses the technical scheme who takes is:
a fully-sealed transformer protective cover is arranged on the upper portion of a transformer oil tank main body and comprises a protective cover box body and a high-voltage cable inlet box, wherein a flange interface which is matched with a transformer bushing lifting seat and the high-voltage cable inlet box is arranged at the bottom of the protective cover box body; the inner side of the bottom of the protective cover is matched and installed with a transformer bushing lifting seat on the upper part of a transformer oil tank main body through a lifting seat flange interface I, the bottom surface of a protective cover box body, extending out of the outer side of the transformer oil tank main body, is connected with a protective cover supporting frame I fixedly installed on the side face of the transformer oil tank main body through a supporting rod, and the high-voltage cable inlet box is hoisted at the bottom of the protective cover box body, extending out of the outer side of the transformer oil tank main body and is matched and installed with;
the front portion of protection casing box is equipped with the large tracts of land observation window, the large tracts of land observation window passes through organic glass or transparent adhesive tape board and protection casing sealing connection, and the left and right sides of protection casing box is equipped with the side operation manhole that is used for operating the transformer bushing and disposes the flange seal.
The further technical scheme is as follows: the protective cover box body is composed of a frame and a wall plate welded on the frame, the inner side of the wall plate is connected with a reinforcing rib, the frame is formed by welding angle steel, and the wall plate is made of 2.5mm steel plates.
Further: a moisture absorber is arranged in the protective cover box body.
Due to the adoption of the technical scheme, compare with prior art, the utility model relates to a totally enclosed transformer protection casing
Has the following beneficial effects:
(1) the improved protective cover structure cancels a flange on the front surface of the protective cover box body, the front surface of the protective cover adopts an organic glass plate matched hole to be made into a large-area observation window for observation, and the two side walls of the protective cover are provided with operating manholes matched with the flange for operating a transformer bushing, so that the operation is convenient, and the weight of the protective cover is greatly reduced;
(2) the part of the protective cover box body extending out of the outer side of the transformer oil tank main body is provided with the supporting frame and the supporting rod at the bottom, so that the protective cover is stably supported, the wire inlet box is independently suspended below the protective cover and does not play a role in bearing any more, the wall of the wire inlet box can meet the requirement by replacing a steel plate with a steel plate from 4mm to 2mm, the weight of the wire inlet box can be reduced, and steel can be saved;
(3) the improved protective cover box body is welded into a frame structure by using angle steel, then a protective cover wall plate is welded on the angle steel, and reinforcing ribs are welded on the wall plate in a matching way, so that the angle steel forms a frame and is assisted by the reinforcing ribs, the protective cover can be ensured to have enough strength and can not deform, and on the basis, thinner steel plates can be adopted to be used as the wall of the protective cover box (the wall of the protective cover box can be selected from steel plates with the thickness of 2.5 mm), thereby greatly reducing the dead weight of the protective cover, not only having little influence on the installation of a transformer, but also reducing the;
as shown in fig. 1, assuming the volume of the enclosure is 2 cubic meters, only the wall of the box: if the wall plate of the box body with the volume of 2 cubic meters is formed by 6mm steel plates, the theoretical weight of the steel plates is about 1130 kg; and the utility model discloses a 2.5mm steel sheet constitutes the wallboard of 2 cubic meter volume boxes, and steel sheet theoretical weight is about 470kg, and the angle steel that constitutes the frame is about 90kg in addition: compared with the prior art, the weight of the used steel is reduced by 50 percent, and the larger the protective cover is, the larger the reduced weight proportion is;
(4) the moisture absorber is arranged in the protective cover box body, so that the air in the protective cover can be kept dry, and the safety performance is improved.
The technical features of a fully-sealed transformer protective cover according to one embodiment of the present invention will be further described with reference to the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural view of a fully-sealed transformer protective cover according to the present invention;
FIG. 2 is a schematic structural diagram of a conventional transformer protective cover;
in the figure:
a, a transformer oil tank main body, B, a transformer bushing lifting seat, C, a transformer bushing, D, a high-voltage cable inlet box, E, a high-voltage cable, F, a high-voltage cable holding device and G, a supporting insulator;
1-protection casing box, 101-rising seat flange interface I (the sealed interface that transformer bushing rising seat and protection casing box are connected), 102-inlet box flange interface I (the sealed interface that high tension cable inlet box and protection casing box are connected), 103-large tracts of land observation window, 104-side operation manhole, 2 bracing pieces, 3-protection casing support frame I, 4-desiccator, 5-protection casing support frame II, 6-protection casing II, 601-rising seat flange interface II, 602-inlet box flange interface II, 603-front cover board, 604-back shroud.
Detailed Description
A fully-sealed transformer protective cover is arranged on the upper portion of a transformer oil tank main body A and comprises a protective cover box body 1 and a high-voltage cable inlet box D, wherein a flange interface which is matched with a transformer bushing lifting seat B and the high-voltage cable inlet box D is arranged at the bottom of the protective cover box body; the inner side of the bottom of the protective cover is matched and installed with a transformer bushing lifting seat B on the upper portion of a transformer oil tank main body A through a lifting seat flange connector I101, the bottom surface of a protective cover box body extending out of the outer side of the transformer oil tank main body is connected with a protective cover supporting frame I fixedly installed on the side face of the transformer oil tank main body A through a supporting rod 2, and the high-voltage cable inlet box D is hoisted at the bottom of the protective cover box body extending out of the outer side of the transformer oil tank main body and is matched and installed with the protective cover box;
the front portion of protection casing box is equipped with large tracts of land observation window 103, large tracts of land observation window passes through organic glass or transparent adhesive tape board and protection casing sealing connection, and the left and right sides of protection casing box is equipped with the side operation manhole 104 that is used for operating the transformer bushing and disposes the flange seal.
The protective cover box body is composed of a frame and a wall plate welded on the frame, the inner side of the wall plate is connected with a reinforcing rib, the frame is formed by welding angle steel, and the wall plate is made of 2.5mm steel plates; the protective cover box body is internally provided with a moisture absorber 4.
Claims (3)
1. A fully-sealed transformer protective cover is arranged on the upper portion of a transformer oil tank main body (A) and comprises a protective cover box body (1) and a high-voltage cable inlet box (D), wherein a flange interface which is matched with a transformer bushing lifting seat (B) and the high-voltage cable inlet box (D) is arranged at the bottom of the protective cover box body;
the method is characterized in that:
the inner side of the bottom of the protective cover is matched and installed with a transformer bushing lifting seat (B) at the upper part of a transformer oil tank main body (A) through a lifting seat flange connector I (101), the bottom surface of a protective cover box body, extending out of the outer side of the transformer oil tank main body, is connected with a protective cover support frame I (3) fixedly installed on the side face of the transformer oil tank main body (A) through a support rod (2), and the high-voltage cable inlet box is hoisted at the bottom of the protective cover box body, extending out of the outer side of the transformer oil tank main body, and is matched and installed with the protective cover;
the front portion of protection casing box is equipped with large tracts of land observation window (103), large tracts of land observation window passes through organic glass or transparent adhesive tape board and protection casing sealing connection, and the left and right sides of protection casing box is equipped with side operation manhole (104) and configuration flange that are used for operating the transformer bushing and seals.
2. The fully-enclosed transformer shroud of claim 1, wherein: the protective cover box body is composed of a frame and a wall plate welded on the frame, the inner side of the wall plate is connected with a reinforcing rib, the frame is formed by welding angle steel, and the wall plate is made of 2.5mm steel plates.
3. The fully-enclosed transformer shroud of claim 2, wherein: a moisture absorber (4) is arranged in the protective cover box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021798178.2U CN213092960U (en) | 2020-08-25 | 2020-08-25 | Fully-sealed transformer protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021798178.2U CN213092960U (en) | 2020-08-25 | 2020-08-25 | Fully-sealed transformer protective cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213092960U true CN213092960U (en) | 2021-04-30 |
Family
ID=75632416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021798178.2U Active CN213092960U (en) | 2020-08-25 | 2020-08-25 | Fully-sealed transformer protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213092960U (en) |
-
2020
- 2020-08-25 CN CN202021798178.2U patent/CN213092960U/en active Active
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