CN215183407U - Ventilation cooling dry-type transformer - Google Patents
Ventilation cooling dry-type transformer Download PDFInfo
- Publication number
- CN215183407U CN215183407U CN202121057483.0U CN202121057483U CN215183407U CN 215183407 U CN215183407 U CN 215183407U CN 202121057483 U CN202121057483 U CN 202121057483U CN 215183407 U CN215183407 U CN 215183407U
- Authority
- CN
- China
- Prior art keywords
- iron core
- transformer
- cabinet
- core support
- cabinet body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Transformer Cooling (AREA)
Abstract
The utility model discloses a ventilation cooling dry-type transformer, include the cabinet body, set up in the internal top iron core support of cabinet, be located bottom iron core support of top iron core support below and set up the transformer winding between this top iron core support and bottom iron core support the internal cabinet is internal the vacant region outside the transformer winding is provided with upper and lower two-layer insulation board, top iron core leg joint has the many bakelite poles that set up upright, these bakelite poles and two-layer the insulation board is connected, the periphery of insulation board this insulation board with be provided with the silica gel board between the medial surface of the cabinet body. The utility model discloses utilize insulation board, silica gel board to shelter from the vacant space outside the internal transformer winding of transformer cabinet, make most cooling air pass through transformer winding inside and reach cabinet body top, increase the cooling amount of wind through transformer winding and iron core to realize reducing the purpose of transformer winding temperature.
Description
Technical Field
The utility model relates to a dry-type transformer, concretely relates to ventilation cooling dry-type transformer.
Background
In the prior art, a cooling system of a dry-type transformer generally comprises 6 cross flow fans at the bottom and 4 centrifugal fans at the top, and the cooling principle is that air is supplied by the bottom fans, air is sucked by the top fans, and the cooling air passes through the inside of a transformer winding and an iron core and is discharged out of a room by an air duct to realize cooling.
However, referring to fig. 1, because the vacant area outside the transformer winding 2 ' in the cabinet 1 ' of the conventional dry-type transformer is large, most of the cooling air entering from the outside of the cabinet 1 ' is not passed through the inside of the transformer winding 2 ', but is directly sucked away by the top fan of the cabinet top air outlet 3 ' through the gap around the transformer winding 2 ', the cooling air passing through the transformer winding 2 ' is insufficient, and the wind resistance of the middle upper part of the transformer winding 2 ' is large, so that the cooling air reaching the middle upper part of the transformer winding 2 ' is smaller, and the purpose of cooling the winding cannot be achieved. When the unit is under high load in summer, the temperature of the transformer winding 2' is high, and reaches about 90 ℃ for a long time, and the maximum temperature reaches 115 ℃. The aging of transformer insulation and accessories can be accelerated by long-term high-temperature operation, and the service life is shortened.
Disclosure of Invention
The utility model aims at overcoming the not enough of prior art existence, provide a structure more reasonable, can effectively strengthen the ventilation cooling dry-type transformer of the cooling amount of wind through transformer winding and iron core.
The utility model discloses a realize through following technical scheme: the utility model provides a ventilation cooling dry-type transformer, includes the cabinet body, set up in the internal top iron core support of cabinet, be located bottom iron core support of top iron core support below and set up the transformer winding between this top iron core support and bottom iron core support the internal two-layer insulation board about the vacant region outside the transformer winding is provided with, top iron core support connection has the many bakelite rods that set up upright, these bakelite rods and two-layer the insulation board is connected, the periphery of insulation board this insulation board with be provided with the silica gel board between the medial surface of the cabinet body.
The insulation board comprises a left half part and a right half part, wherein an insulation connecting plate is arranged below the left half part and the right half part, and the insulation connecting plate is connected with the left half part and the right half part through nylon bolts.
The electric wood rod sequentially penetrates through the upper insulation board layer and the lower insulation board layer downwards, the electric wood rod is correspondingly arranged below the insulation boards and is provided with a transverse through insertion hole, an electric wood strip penetrates through the through insertion hole, and the left end and the right end of the electric wood strip are connected with the insulation boards through nylon bolts.
The edge of the outer side of the insulating plate is provided with insulating strips, the edge of the silica gel plate is clamped between the edge of the outer side of the insulating plate and the insulating strips, and the edge of the silica gel plate, the edge of the outer side of the insulating plate and the insulating strips are connected through nylon bolts.
And an L-shaped connecting piece is arranged between the top iron core bracket and the bakelite rod, and the L-shaped connecting piece is connected with the top iron core bracket and the bakelite rod through nylon bolts.
The top of the cabinet body is provided with a cabinet top air outlet, and a cabinet top air exhaust fan is installed at the cabinet top air outlet.
The bottom of the cabinet body is provided with a shutter type air inlet.
The utility model has the advantages that: the utility model discloses utilize insulation board, silica gel board to shelter from the vacant space outside the internal transformer winding of transformer cabinet, make most cooling air pass through transformer winding inside and reach cabinet body top, increase the cooling amount of wind through transformer winding and iron core to realize reducing the purpose of transformer winding temperature.
Drawings
Fig. 1 is a ventilation schematic diagram of a conventional dry-type transformer;
fig. 2 is a schematic side view of the present invention;
fig. 3 is a schematic structural diagram of the present invention.
In fig. 1: 1' -a cabinet; 2' -a transformer winding; 3' -a cabinet top air outlet;
in fig. 2, 3: 1-a cabinet body; 2-top iron core support; 3-a bottom iron core support; 4-a transformer winding; 5-a layer of insulating board; 6-two layers of insulating plates; 7-silica gel plate; 8-insulating strips; 9-bakelite; 10-cabinet top air outlet; 11-cabinet top exhaust fan; 12-L-shaped connectors; 13-electric wood strip.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 2 and 3, a ventilation cooling dry-type transformer, which comprises a cabinet body 1, a top iron core support 2 arranged in the cabinet body 1, a bottom iron core support 3 positioned below the top iron core support 2 and a transformer winding 4 arranged between the top iron core support 2 and the bottom iron core support 3, an upper layer insulation board and a lower layer insulation board are arranged in an empty region outside the transformer winding 4 in the cabinet body 1, namely, two layers of insulation boards 6 and one layer of insulation board 5, the one layer of insulation board 5 is positioned below the two layers of insulation boards 6, the top iron core support 2 is connected with a plurality of vertically arranged bakelite rods 9, the bakelite rods 9 are connected with the two layers of insulation boards, and a silica gel plate 7 is arranged between the insulation boards and the inner side face of the cabinet body 1 at the periphery of the insulation boards.
The insulation board comprises left and right halves, and the below of left half and right half is provided with insulating connecting plate, and insulating connecting plate passes through the nylon bolt and is connected with left half, right half.
The bakelite rod 9 downwards sequentially penetrates through the upper and lower insulation plates, a transverse through jack is arranged below the corresponding insulation plate of the bakelite rod 9, a bakelite strip 13 penetrates through the through jack, and the left end and the right end of the bakelite strip 13 are connected with the insulation plates through nylon bolts.
The edge of the outer side of the insulating plate is provided with an insulating strip 8, the edge of the silica gel plate 7 is clamped between the edge of the outer side of the insulating plate and the insulating strip 8, and the edge of the silica gel plate 7 and the edge of the outer side of the insulating plate are connected with the insulating strip 8 through nylon bolts.
An L-shaped connecting piece 12 is arranged between the top iron core bracket 2 and the bakelite rod 9, and the L-shaped connecting piece 12 is connected with the top iron core bracket 2 and the bakelite rod 9 through nylon bolts.
When in manufacturing, cutting an insulating plate with the thickness of 3mm according to the size of a vacant part outside the transformer winding 4 in the dry type transformer cabinet body 1 and the shape of the transformer winding 4; the cut insulating plate is divided into a left part and a right part in a centering way, so that the two parts are convenient to mount front and back, the two half insulating plates are fixedly connected by using an insulating connecting plate and a nylon bolt, and the inner hole of the insulating plate is properly larger than the outer surface of the transformer winding 4; pressing the edge of the silica gel plate 7 on the outer edge of the insulating plate, symmetrically perforating, and fixedly connecting by using an insulating strip 8 and a nylon bolt; two-layer insulation board is connected with bakelite rod 9 through bakelite bar 13 and carry out the nylon bolt, and the insulation board hangs to be fixed on bakelite rod 9, and L shape connecting piece 12 and top iron core support 2 are adopted on the top of bakelite rod 9 to carry out fixed connection. The silica gel plate 7 is tightly attached to the cabinet body 1 and the cabinet door plate of the transformer, so that air leakage is avoided.
The top of the cabinet body 1 is provided with a cabinet top air outlet 10, and a cabinet top air exhaust fan 11 is installed at the cabinet top air outlet 10. The bottom of the cabinet body 1 is provided with a shutter type air inlet.
During operation, most cooling air reaches the top of the cabinet body 1 through the inside of the transformer winding 4 and is exhausted by the cabinet top exhaust fan 11, and the cooling air quantity passing through the transformer winding 4 and the iron core is increased, so that the purpose of reducing the temperature of the transformer winding 4 is achieved. A small part of cooling air reaches the top of the cabinet body 1 through a small gap between the outer surface of the transformer winding 4 and the insulating plate, and is exhausted by the cabinet top exhaust fan 11 to take away heat in the cabinet body 1 and on the outer surface of the transformer winding 4.
Experiments prove that under the same environment temperature and the same load, the temperature of the transformer winding 4 is reduced by about 40 ℃, the operating temperature of the transformer winding 4 is kept at about 49 ℃, and the cooling effect is obvious. Adopt the utility model discloses a behind the structure, the transformer bottom need not to be equipped with extra fan, can reduce transformer load loss like this, practices thrift that the fan is power consumptive.
It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a ventilation cooling dry-type transformer, includes the cabinet body, sets up in the internal top iron core support of cabinet, is located bottom iron core support of top iron core support below and set up the transformer winding between this top iron core support and bottom iron core support, its characterized in that: the transformer comprises a cabinet body and is characterized in that an upper insulation board layer and a lower insulation board layer are arranged in a vacant area outside a transformer winding in the cabinet body, a top iron core support is connected with a plurality of vertically arranged bakelite rods, the bakelite rods are connected with the two insulation boards, and a silica gel board is arranged on the periphery of the insulation boards between the insulation boards and the inner side surface of the cabinet body.
2. A ventilated cooled dry transformer as claimed in claim 1 in which: the insulation board comprises a left half part and a right half part, wherein an insulation connecting plate is arranged below the left half part and the right half part, and the insulation connecting plate is connected with the left half part and the right half part through nylon bolts.
3. A ventilated cooled dry transformer as claimed in claim 2 in which: the electric wood rod sequentially penetrates through the upper insulation board layer and the lower insulation board layer downwards, the electric wood rod is correspondingly arranged below the insulation boards and is provided with a transverse through insertion hole, an electric wood strip penetrates through the through insertion hole, and the left end and the right end of the electric wood strip are connected with the insulation boards through nylon bolts.
4. A ventilated cooled dry transformer as claimed in claim 3 in which: the edge of the outer side of the insulating plate is provided with insulating strips, the edge of the silica gel plate is clamped between the edge of the outer side of the insulating plate and the insulating strips, and the edge of the silica gel plate, the edge of the outer side of the insulating plate and the insulating strips are connected through nylon bolts.
5. A ventilated cooled dry transformer as claimed in claim 4 in which: and an L-shaped connecting piece is arranged between the top iron core bracket and the bakelite rod, and the L-shaped connecting piece is connected with the top iron core bracket and the bakelite rod through nylon bolts.
6. A ventilated cooled dry transformer as claimed in claim 5 in which: the top of the cabinet body is provided with a cabinet top air outlet, and a cabinet top air exhaust fan is installed at the cabinet top air outlet.
7. A ventilated cooled dry transformer as claimed in claim 6 in which: the bottom of the cabinet body is provided with a shutter type air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121057483.0U CN215183407U (en) | 2021-05-18 | 2021-05-18 | Ventilation cooling dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121057483.0U CN215183407U (en) | 2021-05-18 | 2021-05-18 | Ventilation cooling dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215183407U true CN215183407U (en) | 2021-12-14 |
Family
ID=79370828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121057483.0U Expired - Fee Related CN215183407U (en) | 2021-05-18 | 2021-05-18 | Ventilation cooling dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215183407U (en) |
-
2021
- 2021-05-18 CN CN202121057483.0U patent/CN215183407U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215183407U (en) | Ventilation cooling dry-type transformer | |
| CN219247594U (en) | Heat radiation structure of motor casing | |
| CN203415634U (en) | Constant-temperature battery cupboard | |
| CN203495444U (en) | Inverter welding machine case with unique heat dissipation air channel | |
| CN205847065U (en) | A kind of high voltage converter radiator structure | |
| CN201060720Y (en) | Reactor ventilator unit of transformer device | |
| CN203387362U (en) | Electric generator with water sleeve cooling mechanism | |
| CN108666910A (en) | A kind of cooling ventilation power cabinet | |
| CN213025716U (en) | Novel ventilation type dry-type transformer | |
| CN214314212U (en) | Prefabricated substation ventilation and heat dissipation device | |
| CN211556642U (en) | Novel ventilation box transformer substation | |
| CN212182065U (en) | Three-phase power transformer | |
| CN113241640A (en) | Ring main unit with humidity monitoring and humidity control functions | |
| CN218243258U (en) | Motor cooling system with multiple shunts and double partition plates | |
| CN213692873U (en) | Power distribution room with high heat dissipation moisture resistance | |
| CN112786285B (en) | Transformer winding with efficient heat dissipation structure | |
| CN208226723U (en) | A kind of electric machine stand of built-in thermal baffle | |
| CN215815465U (en) | Energy-saving transformer structure | |
| CN216162165U (en) | High tension switchgear with dust removal dehumidification function | |
| CN212462560U (en) | Heat dissipation switch board | |
| CN220691849U (en) | Laminated iron core transformer | |
| CN218645639U (en) | Ventilation floor for heating | |
| CN213584883U (en) | Capacitor box with good heat dissipation effect | |
| CN212625065U (en) | Dry-type transformer | |
| CN220439342U (en) | Silicon steel three-dimensional roll iron core transformer with dampproofing function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |