CN215600221U - Combined insulating cylinder for 35KV photovoltaic dual-voltage oil-immersed transformer - Google Patents
Combined insulating cylinder for 35KV photovoltaic dual-voltage oil-immersed transformer Download PDFInfo
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- CN215600221U CN215600221U CN202121540737.4U CN202121540737U CN215600221U CN 215600221 U CN215600221 U CN 215600221U CN 202121540737 U CN202121540737 U CN 202121540737U CN 215600221 U CN215600221 U CN 215600221U
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- cylinder body
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Abstract
The utility model discloses a combined insulating cylinder for a 35KV photovoltaic dual-voltage oil-immersed transformer, which mainly solves the problem that the insulation and heat dissipation of the conventional 35KV photovoltaic dual-voltage oil-immersed transformer structure are difficult to meet requirements. The combined insulating cylinder comprises an insulating cylinder body, a plurality of axial supporting strips adhered to the outer circumference of the insulating cylinder body, a transformer oil channel formed between every two axial supporting strips, an upper integral angle ring sleeved on the upper half part of the insulating cylinder body, a lower integral angle ring sleeved on the lower half part of the insulating cylinder body, and an insulating end ring arranged between the upper integral angle ring and the lower integral angle ring in the axial direction. Through the design, the insulating cylinder plays two roles of axial insulation and axial heat dissipation, and is simple and reasonable in structure, easy to realize and high in insulating strength. Therefore, the method is suitable for popularization and application.
Description
Technical Field
The utility model relates to a transformer accessory, in particular to a combined insulating cylinder for a 35KV photovoltaic dual-voltage oil-immersed transformer.
Background
In recent years, the new energy industry has been developed greatly, but the technical progress of the 35KV photovoltaic dual-voltage oil-immersed transformer applied to photovoltaic power generation is slow. Especially, less people research on the optimization of the structure and the function of the 35KV photovoltaic dual-voltage oil-immersed transformer accessory.
The 35KV photovoltaic dual-voltage oil-immersed transformer generally has two low voltages and two high voltages, the two low voltages and the two high voltages are vertically arranged and are simultaneously sleeved on an iron core column, and the structure different from the distribution transformer makes the arrangement of an insulating oil passage and a heat dissipation oil passage difficult, so that a combined insulating cylinder for simultaneously solving the problems of insulation and heat dissipation is necessary to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a combined insulating cylinder for a 35KV photovoltaic dual-voltage oil-immersed transformer, which mainly solves the problem that the insulation and heat dissipation of the conventional 35KV photovoltaic dual-voltage oil-immersed transformer structure are difficult to meet the requirements.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the combined insulating cylinder comprises an insulating cylinder body, a plurality of axial supporting strips, a transformer oil channel, an upper integral angle ring, a lower integral angle ring and an insulating end ring, wherein the plurality of axial supporting strips are bonded on the outer circumference of the insulating cylinder body, the transformer oil channel is formed between every two axial supporting strips, the upper integral angle ring is sleeved on the upper half part of the insulating cylinder body, the lower integral angle ring is sleeved on the lower half part of the insulating cylinder body, and the insulating end ring is arranged between the upper integral angle ring and the lower integral angle ring in the axial direction.
Furthermore, a plurality of axial stays are uniformly distributed on the outer circumference of the insulating cylinder body.
Furthermore, a plurality of oil passage holes are formed in the inner walls of the upper integral angle ring and the lower integral angle ring.
Furthermore, a plurality of radial supporting strips are bonded on the upper end face and the lower end face of the insulating end ring.
Furthermore, the axial stay and the radial stay are bonded by casein glue.
Compared with the prior art, the utility model has the following beneficial effects:
(1) according to the utility model, the axial supporting strips are arranged on the insulating cylinder body, and the transformer oil channel is formed between the axial supporting strips, so that the transformer oil can reach the top of the insulating cylinder from the bottom of the insulating cylinder along the supporting strip gaps, and the two effects of axial insulation and axial heat dissipation are achieved.
(2) The upper integral angle ring is sleeved on the insulating cylinder, the lower integral angle ring is sleeved at the lower end of the insulating cylinder, two high voltages of double voltages are respectively wound on the two angle rings, the two integral angle rings have the function of increasing the creepage distance of the respective high voltages, and the wall of each angle ring is provided with a plurality of oil passage holes, so that part of transformer oil flowing along the supporting strips is guided into the respective high-voltage coil to cool and increase the respective internal insulation.
(3) The utility model arranges an insulating end ring between two integral angle rings in the axial direction, the insulating end ring plays the role of insulating between two high voltages, and the upper surface and the lower surface of the end ring are adhered with the stay bars, thus leading part of the transformer oil flowing along the axial direction of the stay bars of the insulating cylinder to flow in the radial direction, and playing the roles of insulating in the radial direction and radiating in the radial direction.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic sectional view in the direction of a-a in fig. 1.
Fig. 3 is a schematic top view of the present invention.
Wherein, the names corresponding to the reference numbers are:
1-insulating cylinder body, 2-axial stay, 3-transformer oil channel, 4-upper integral angle ring, 5-lower integral angle ring, 6-insulating end ring, 7-radial stay.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
Examples
As shown in fig. 1 to 3, the combined insulation cylinder for the 35KV photovoltaic dual-voltage oil-immersed transformer disclosed by the utility model comprises an insulation cylinder body 1 serving as a base, and a plurality of axial supporting bars 2 uniformly distributed and bonded on the outer circumference of the insulation cylinder body 1 through casein glue, so that transformer oil can reach the top of the insulation cylinder from the bottom of the insulation cylinder along gaps among the supporting bars serving as transformer oil channels 3, and the two functions of axial insulation and axial heat dissipation are achieved.
On the basis of the insulating cylinder 1 and the axial stay 2, an upper integral angle ring 4 is sleeved at the upper end of the outer part of the insulating cylinder, a lower integral angle 5 is sleeved at the lower end of the insulating cylinder, two high voltages of double voltages are wound on the two angle rings respectively, the two integral angle rings have the function of increasing the creepage distance of the respective high voltages, and the wall of each angle ring is provided with a plurality of oil passage holes, so that part of transformer oil flowing along the axial stay 2 is guided into the respective high-voltage coil to cool and increase the respective internal insulation.
In addition, an insulating end ring 6 is arranged between the two integral angle rings in the axial direction, the insulating end ring 6 plays the role of insulating between the two high voltages, and radial supporting bars 7 are glued on the upper surface and the lower surface of the end ring through casein glue, so that a part of transformer oil flowing along the axial supporting bars 2 in the axial direction can be guided to flow in the radial direction, and the purposes of radial insulation and radial heat dissipation are achieved.
Through the design, the insulating cylinder plays two roles of axial insulation and axial heat dissipation, and is simple and reasonable in structure, easy to realize and high in insulating strength. Thus, the present invention provides substantial features and improvements over the prior art.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (5)
1. The utility model provides a two voltage of 35KV photovoltaic oil-immersed transformer is with combination formula insulating cylinder which characterized in that, including insulating cylinder body (1), bond a plurality of axial stay (2) on the outer circumference of insulating cylinder body (1), transformer oil passageway (3) of formation between two liang of axial stay (2), suit in last whole angle ring (4) of insulating cylinder body (1) first, suit in lower whole angle ring (5) of insulating cylinder body (1) lower half to and set up in insulating end circle (6) between last whole angle ring (4) and lower whole angle ring (5) axial.
2. The combined insulating cylinder for the 35KV photovoltaic dual-voltage oil-immersed transformer according to claim 1, wherein the plurality of axial stays (2) are uniformly distributed on the outer circumference of the insulating cylinder body (1).
3. The combined insulating cylinder for the 35KV photovoltaic dual-voltage oil-immersed transformer according to claim 2, wherein a plurality of oil passage holes are formed in the inner walls of the upper integral angle ring (4) and the lower integral angle ring (5).
4. The combined insulating cylinder for the 35KV photovoltaic dual-voltage oil-immersed transformer according to claim 3, wherein a plurality of radial supporting strips (7) are bonded to the upper end face and the lower end face of the insulating end ring (6).
5. The combined insulating cylinder for the 35KV photovoltaic dual-voltage oil-immersed transformer according to claim 4, wherein the axial stays (2) and the radial stays (7) are bonded by casein glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121540737.4U CN215600221U (en) | 2021-07-07 | 2021-07-07 | Combined insulating cylinder for 35KV photovoltaic dual-voltage oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121540737.4U CN215600221U (en) | 2021-07-07 | 2021-07-07 | Combined insulating cylinder for 35KV photovoltaic dual-voltage oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215600221U true CN215600221U (en) | 2022-01-21 |
Family
ID=79877752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121540737.4U Active CN215600221U (en) | 2021-07-07 | 2021-07-07 | Combined insulating cylinder for 35KV photovoltaic dual-voltage oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215600221U (en) |
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2021
- 2021-07-07 CN CN202121540737.4U patent/CN215600221U/en active Active
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