CN208077728U - A kind of radiating device for dry-type transformer - Google Patents
A kind of radiating device for dry-type transformer Download PDFInfo
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- CN208077728U CN208077728U CN201820365016.6U CN201820365016U CN208077728U CN 208077728 U CN208077728 U CN 208077728U CN 201820365016 U CN201820365016 U CN 201820365016U CN 208077728 U CN208077728 U CN 208077728U
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- dry
- outer container
- type transformer
- semiconductor chilling
- chilling plate
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Abstract
Include the outer container for accommodating transformer body the utility model is related to a kind of radiating device for dry-type transformer, semiconductor chilling plate is embedded on outer container, the cold end of semiconductor chilling plate towards case inside and is connected with the cold scattering piece stretched in outer container；Air inlet and exhaust outlet are further opened on outer container, air inlet is equipped with filter mechanism, and exhaust fan is equipped at exhaust outlet and is connected with exhaust duct, the outlet end of exhaust duct extends near the hot junction of semiconductor chilling plate.It is combined using two kinds of types of cooling of semiconductor chilling plate and exhaust fan, rapidly the dry-type transformer ontology in outer container can be cooled down, ensure the stable operation of dry-type transformer, improve the working efficiency and service life of dry-type transformer.The heat dissipation that semiconductor chilling plate hot junction is realized by the exhaust of exhaust duct, ensures the refrigeration effect of semiconductor chilling plate, does not have to the heat dissipation equipment of additional setting semiconductor chilling plate, reduces equipment cost.
Description
Technical field
The utility model belongs to transformer technology field, and in particular to a kind of radiating device for dry-type transformer.
Background technology
Dry-type transformer and oil-immersed transformer are most commonly used two kinds of transformers, and briefly dry-type transformer is exactly
Refer to iron core and winding is not immersed in the transformer in insulating oil, compared with oil-immersed transformer, the fire line of dry-type transformer
Can be more preferable, local lighting and skyscraper, airport etc. are widely used in for the higher place of fire protection requirement.In recent years, dry type
Transformer achieves swift and violent development in the whole world, and especially in distribution transformer, it is more and more big to do the ratio for becoming shared；Mesh
Preceding China, which has become, dry in the world sells of one's property the most salable country.
The dry-type transformer type of cooling is divided into natural air cooling and forced air cooling.When natural air cooling, transformer can
The long-term continuous operation under rated capacity；When forced air cooling, transformer output capacity can be improved 50%, be suitable for interrupted overload
Operation or emergent accident running overload.The safe operation of dry-type transformer and service life, are heavily dependent on transformation
Device winding insulation it is safe and reliable, winding temperature be more than insulation tolerable temperature make insulation breakdown, be to cause transformer normal
One of the main reason for work, therefore be highly important to the control of the running temperature of transformer.
Since economic development is rapid, power load is higher and higher, and especially in summer, transformer often will appear high load capacity fortune
The case where turning can make the high temperature in transformer cause the aging of inside transformer device, or even cause in addition summer temp is excessively high
Circuit catches fire, and great inconvenience is brought to life.
Utility model content
The utility model embodiment is related to a kind of radiating device for dry-type transformer, and the part that can at least solve the prior art lacks
It falls into.
The utility model embodiment is related to a kind of radiating device for dry-type transformer, includes for accommodating the outer of transformer body
Case, is embedded with semiconductor chilling plate on the outer container, and the cold end of the semiconductor chilling plate is towards on the inside of case and being connected with and stretch into
Cold scattering piece in the outer container；Air inlet and exhaust outlet are further opened on the outer container, the air inlet is equipped with filter
Structure is equipped with exhaust fan at the exhaust outlet and is connected with exhaust duct, and the outlet end of the exhaust duct extends to the semiconductor system
Near cold hot junction.
As one of embodiment, the exhaust outlet is set to the top of the outer container.
As one of embodiment, the outer container includes top terrace with edge portion and lower part prism portion, the terrace with edge portion be it is upper it is narrow under
Wide structure, the exhaust outlet are set to the top in the terrace with edge portion, and the semiconductor chilling plate and the air inlet are set to described
In prism portion.
As one of embodiment, the bottom end in the terrace with edge portion is disposed with partition board, and multiple ventilation holes are disposed on the partition board.
As one of embodiment, the filter mechanism includes the filter plate for being detachably flush-mounted in the air inlet, described
Filter plate includes inside and outside two layers of filter layer of cloth and the activated carbon layer that is filled between two layers of filter layer of cloth.
As one of embodiment, the air inlet is equipped with containment envelope, and the containment envelope includes being installed on outside described
The first cover cylinder section on box outer wall and the second cover cylinder section for being connected to the first cover cylinder section other end, the first cover cylinder section and
The axis of the second cover cylinder section is sloped downwardly outside lateral case from case and has an angle of cut between two axial lines.
As one of embodiment, the filter mechanism further includes fly net, and the insect screening is placed in the second cover cylinder
The arrival end of section.
As one of embodiment, the exhaust duct has venturi section, venturi section the going out close to the exhaust duct
Mouth end.
As one of embodiment, it is additionally provided with temperature sensor and microcontroller in the outer container, it is the temperature sensor, described
Semiconductor chilling plate and the exhaust fan with the monolithic mechatronics.
As one of embodiment, cooling piece installation window that the semiconductor chilling plate is corresponding on the outer container to be opened up it
Between using epoxy resin seal.
The utility model embodiment at least has the advantages that：
Radiating device for dry-type transformer provided by the utility model carries out the air in outer container using semiconductor chilling plate
Cooling is forced, meanwhile, the hot-air in outer container can be discharged outside case using exhaust fan, is combined by two kinds of types of cooling, it can be fast
Fast ground cools down the dry-type transformer ontology in outer container, ensures the stable operation of dry-type transformer, improves dry-type transformer
Working efficiency and service life.It is nearby blown to semiconductor chilling plate hot junction by the exhaust of exhaust duct, half can be accelerated
Air circulation near conductor cooling piece hot junction ensures semiconductor system to improve the heat dissipation effect in semiconductor chilling plate hot junction
Cold refrigeration effect does not have to the heat dissipation equipment of additional setting semiconductor chilling plate, reduces equipment cost.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram for the radiating device for dry-type transformer that the utility model embodiment provides.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The all other embodiment obtained, shall fall within the protection scope of the present invention.
Such as Fig. 1, the utility model embodiment provides a kind of radiating device for dry-type transformer, including outer container 1, which uses
In receiving transformer body (not shown), be embedded with semiconductor chilling plate 2 on the outer container 1, the semiconductor chilling plate 2 it is cold
End face is to case inside and is connected with the cold scattering piece 21 stretched in the outer container 1, then is easy-to-understand to, the semiconductor chilling plate 2
Hot junction towards on the outside of case, cold end can cool down the air in outer container 1, and outer end is then radiated；It is also opened on the outer container 1
Equipped with air inlet and exhaust outlet, the air inlet is equipped with filter mechanism, and exhaust fan 3 and the row of being connected with are equipped at the exhaust outlet
The outlet end of air hose 4, the exhaust duct 4 extends near the hot junction of the semiconductor chilling plate 2.
Radiating device for dry-type transformer provided in this embodiment carries out the air in outer container 1 using semiconductor chilling plate 2
Cooling is forced, meanwhile, the hot-air in outer container 1 can be discharged outside case using exhaust fan 3, is combined by two kinds of types of cooling, it can
Rapidly the dry-type transformer ontology in outer container 1 is cooled down, ensures the stable operation of dry-type transformer, improves dry type transformation
The working efficiency and service life of device.
It is nearby blown to 2 hot junction of semiconductor chilling plate by the exhaust of exhaust duct 4, it can accelerated semiconductor cooling piece 2
Air circulation near hot junction ensures the system of semiconductor chilling plate 2 to improve the heat dissipation effect in 2 hot junction of semiconductor chilling plate
Cold effect does not have to the heat dissipation equipment of additional setting semiconductor chilling plate 2, reduces equipment cost.Usually, the heat in outer container 1 is empty
Temperature degree does not exceed 40 DEG C, and the temperature in 2 hot junction of semiconductor chilling plate can reach 60 DEG C or more (more at 80 DEG C or more),
Therefore the hot-air in outer container 1 can be utilized to realize the heat dissipation to 2 hot junction of semiconductor chilling plate；Still further aspect, when in outer container 1
Air themperature lower after, still can by the air after cooling be discharged with to semiconductor chilling plate 2 carry out radiating treatment.Further
Preferably, such as Fig. 1, the exhaust duct 4 is with venturi section (having illustrated, do not mark), and the venturi section is close to the air draft
The outlet end of pipe 4, through the venturi section, the flow velocity for the air that can increase export, to further increase to semiconductor chilling plate 2
Heat dissipation effect.
Preferably, such as Fig. 1, the cooling piece installation window opened up corresponding on the outer container 1 of the semiconductor chilling plate 2 it
Between using epoxy resin 6 seal, ensure outer container 1 in air cleaning, avoid air between semiconductor chilling plate 2 and outer container 1
Gap enter in outer container 1 and influence the work of dry-type transformer ontology, moreover, epoxy resin 6 has preferable insulating properties, no
The work of semiconductor chilling plate 2 can be had an impact.
When exhaust fan 3 works and the hot-air in outer container 1 is discharged, due to the reduction of air pressure in outer container 1, extraneous sky
Gas can be automatically entered in outer container 1 by air inlet, on the one hand supply the air pressure in outer container 1, on the other hand, normal temperature air
Into the reduction for realizing air themperature in outer container 1 naturally.In the present embodiment, by the way that filter mechanism is arranged in air inlet,
It can be filtered to entering the air in outer container 1, insect, dust etc. is avoided to have an impact the work of dry-type transformer ontology
And cause security risk.Air filter commonly used in the prior art can be used in the filter mechanism；It is described below a kind of specific
The structure of filter mechanism：
The filter mechanism includes the filter plate (not shown) for being detachably flush-mounted in the air inlet, the filter plate packet
The activated carbon layer for including inside and outside two layers of filter layer of cloth and being filled between two layers of filter layer of cloth；Non-woven fabrics can be used in above-mentioned filter layer of cloth, on
It states active carbon layer and the replacements such as foam grain, ultra-fine fibre glass filter paper can also be used.
Advanced optimize the structure of above-mentioned outer container 1, such as Fig. 1, the air inlet is equipped with containment envelope 5, outside the protection
Cover 5 include the first cover cylinder section 51 being installed on 1 outer wall of the outer container and be connected to 51 other end of the first cover cylinder section the
The axis of two cover cylinder sections 52, the first cover cylinder section 51 and the second cover cylinder section 52 is sloped downwardly from case outside lateral case
And there is an angle of cut between two axial lines.It is easy-to-understand to, one end of the close outer container 1 of the first cover cylinder section 51 and the second cover cylinder section 52
It is outlet end, one end far from outer container 1 is arrival end, then the first cover cylinder section 51 and the second cover cylinder section 52 are from its outlet end
It is tilted down to its entrance extreme direction, the second cover cylinder section 52 is prolonged from the arrival end of the first cover cylinder section 51 to the side far from outer container 1
It stretches；Due to having an angle of cut, i.e. angle between the axis and horizontal plane of the second cover cylinder section 52 between the axis of two cover cylinder sections
More than the angle between the axis and horizontal plane of the first cover cylinder section 51.Based on the structure of above-mentioned containment envelope 5, air inlet is accommodated
In interior, rainwater etc. can be effectively prevented and entered in outer container 1, ensure the normal table operation of dry-type transformer ontology.Further
Ground, the filter mechanism further include fly net (not shown), and the insect screening is placed in the arrival end of the second cover cylinder section 52；
Insect is tentatively filtered out by the fly net, the work load of foregoing filtration plate can be reduced, that improves the filter plate uses the longevity
Life.
The structure of above-mentioned outer container 1, such as Fig. 1 are advanced optimized, the exhaust outlet is set to the top of the outer container 1, based on heat
Air floats and the principle of cold air sinking, and exhaust outlet is set to 1 top of outer container, more the hot-air of top can be discharged,
To conducive to the cooling to dry-type transformer.Correspondingly, above-mentioned air inlet and semiconductor chilling plate 2 is preferably set to outer container
1 lower part, semiconductor chilling plate 2 can be set to the homonymy of outer container 1 with air inlet, can also be oppositely arranged.It is further preferred that such as Fig. 1,
The outer container 1 includes top terrace with edge portion 11 and lower part prism portion 12, and the terrace with edge portion 11 is up-narrow and down-wide structure, the exhaust outlet
Top set on the terrace with edge portion 11, the semiconductor chilling plate 2 and the air inlet are set in the prism portion 12；Using
The structure of prism-frustum-shaped, tapered shape is conducive to row outside the further assembly of hot-air from bottom to top.Wherein, above-mentioned lower part prism
Portion 12 is preferably cuboid/cube structure；Usually, single semiconductor chilling plate 2 can meet the dry type change of small dimension
The refrigeration demand of depressor, during actual use, it can select that multiple semiconductor chilling plates 2 are arranged as needed, it can be above-mentioned
Semiconductor chilling plate 2 is respectively set on each side in prism portion 12, above-mentioned exhaust duct 4 can be correspondingly arranged multiple shunting branch
Pipe, to extend respectively to the top of each semiconductor chilling plate 2.Further, such as Fig. 1, the bottom end in the terrace with edge portion 11 is disposed with
Partition board 111 is disposed with multiple ventilation holes on the partition board 111, which can play the role of air distribution plate so that prism portion
Air in 12 equably, gently enters in terrace with edge portion 11, ensures the relative homogeneity in temperature field in prism portion 12.
As a preferred embodiment, temperature sensor and microcontroller, the temperature sensor, institute are additionally provided in the outer container 1
Semiconductor chilling plate 2 and the exhaust fan 3 are stated with the monolithic mechatronics, are detected in outer container 1 by temperature sensor
Air themperature, when air themperature is increased to a certain threshold value in outer container 1, microcontroller can instruct semiconductor chilling plate 2 and/or air draft
3 work of fan, ensures that the air themperature in outer container 1 is automatically controllable；Above-mentioned temperature sensor, semiconductor chilling plate 2, exhaust fan 3 with
Electrical connection and automation control process between microcontroller are the prior arts, are the easily designed realizations of those skilled in the art
, without in addition programming, do not repeat herein；Above-mentioned microcontroller is conventional equipment, can be bought by market.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of radiating device for dry-type transformer includes the outer container for accommodating transformer body, it is characterised in that：The outer container
Upper to be embedded with semiconductor chilling plate, the cold end of the semiconductor chilling plate is towards on the inside of case and being connected with and stretch in the outer container
Cold scattering piece；Air inlet and exhaust outlet are further opened on the outer container, the air inlet is equipped with filter mechanism, the exhaust outlet
Place is equipped with exhaust fan and is connected with exhaust duct, and the hot junction that the outlet end of the exhaust duct extends to the semiconductor chilling plate is attached
Closely.
2. radiating device for dry-type transformer as described in claim 1, it is characterised in that：The exhaust outlet is set to the outer container
Top.
3. radiating device for dry-type transformer as claimed in claim 2, it is characterised in that：The outer container include top terrace with edge portion and
Lower part prism portion, the terrace with edge portion are up-narrow and down-wide structure, and the exhaust outlet is set to the top in the terrace with edge portion, the semiconductor
Cooling piece and the air inlet are set in the prism portion.
4. radiating device for dry-type transformer as claimed in claim 3, it is characterised in that：The bottom end in the terrace with edge portion be disposed with every
Plate is disposed with multiple ventilation holes on the partition board.
5. radiating device for dry-type transformer as described in claim 1, it is characterised in that：The filter mechanism includes detachable embedding
Filter plate loaded on the air inlet, the filter plate include inside and outside two layers of filter layer of cloth and are filled between two layers of filter layer of cloth
Activated carbon layer.
6. radiating device for dry-type transformer as claimed in claim 5, it is characterised in that：It is outer that the air inlet is equipped with protection
Cover, the containment envelope includes the first cover cylinder section being installed on the outer box outer wall and to be connected to the first cover cylinder section another
The axis of the second cover cylinder section at end, the first cover cylinder section and the second cover cylinder section is sloped downwardly from case outside lateral case
And there is an angle of cut between two axial lines.
7. radiating device for dry-type transformer as claimed in claim 6, it is characterised in that：The filter mechanism further includes insect prevention
Net, the insect screening are placed in the arrival end of the second cover cylinder section.
8. radiating device for dry-type transformer as described in claim 1, it is characterised in that：The exhaust duct has venturi section,
The venturi section is close to the outlet end of the exhaust duct.
9. radiating device for dry-type transformer as described in claim 1, it is characterised in that：It is additionally provided with temperature sensing in the outer container
Device and microcontroller, the temperature sensor, the semiconductor chilling plate and the exhaust fan with the monolithic mechatronics.
10. radiating device for dry-type transformer as described in claim 1, it is characterised in that：The semiconductor chilling plate with it is described
It is sealed using epoxy resin between the corresponding cooling piece installation window opened up on outer container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820365016.6U CN208077728U (en) | 2018-03-16 | 2018-03-16 | A kind of radiating device for dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820365016.6U CN208077728U (en) | 2018-03-16 | 2018-03-16 | A kind of radiating device for dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208077728U true CN208077728U (en) | 2018-11-09 |
Family
ID=64047398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820365016.6U Active CN208077728U (en) | 2018-03-16 | 2018-03-16 | A kind of radiating device for dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208077728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729114A (en) * | 2019-10-28 | 2020-01-24 | 江苏龙创电气有限公司 | Distribution transformer with iron core replacement function |
-
2018
- 2018-03-16 CN CN201820365016.6U patent/CN208077728U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729114A (en) * | 2019-10-28 | 2020-01-24 | 江苏龙创电气有限公司 | Distribution transformer with iron core replacement function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 443000 No. 31 Stadium Road, Yichang, Hubei Patentee after: HUBEI THREE GORGES POLYTECHNIC Patentee after: Hubei Dongming Electric Co.,Ltd. Address before: 443000 No. 31 Stadium Road, Yichang, Hubei Patentee before: HUBEI THREE GORGES POLYTECHNIC Patentee before: YICHANG DONGMING ELECTRICAL CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |