CN208256423U - A kind of three-dimensional winding iron core oil-immersed transformer - Google Patents
A kind of three-dimensional winding iron core oil-immersed transformer Download PDFInfo
- Publication number
- CN208256423U CN208256423U CN201820866657.XU CN201820866657U CN208256423U CN 208256423 U CN208256423 U CN 208256423U CN 201820866657 U CN201820866657 U CN 201820866657U CN 208256423 U CN208256423 U CN 208256423U
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- China
- Prior art keywords
- transformer
- oil
- heat dissipation
- iron core
- radiator
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Abstract
A kind of three-dimensional winding iron core oil-immersed transformer, including fuel tank, HV Terminal, low-voltage terminal and iron core, the inner cavity of fuel tank fills transformer oil, HV Terminal is connect with coil windings respectively with low-voltage terminal, the coil windings are wound around composition transformer core on iron core, transformer core is immersed in the transformer oil in fuel tank, heat dissipation tank is provided with above the transformer tank, heat dissipation tank is communicated by convection tube with transformer tank inner cavity, the convection tube is flat hollow pipe, the heat dissipation box enclosure is provided with radiating fin outward, it fills in the heat dissipation box cavity of heat dissipation tank equipped with transformer oil, respiratory siphon has been set up at the top of heat dissipation tank, respiratory siphon and heat dissipation tank external communication, the side of the heat dissipation tank is provided with oil level indicator.The utility model provides a kind of oil-immersed transformer, and good heat dissipation effect, structure is simple, and manufacturing cost is low, can effectively solve the heat dissipation problem of oil-immersed transformer.
Description
Technical field
The utility model relates to a kind of transformer, especially a kind of three-dimensional winding iron core oil-immersed transformer belongs to electric power and sets
Standby technical field.
Background technique
Three-dimensional winding iron core oil-immersed transformer has many advantages, such as that at low cost, capacity is big, good insulation preformance, therefore is widely applied
In electric system, industrial and mining enterprises, traffic and various a departments such as civilian.Transformer is during transmitting electric energy, inner surface
Loss can be generated, wherein the loss generated by the resistance of conducting wire is related with load current and directly proportional to load current, this portion
Divide loss to be substantially transformed into thermal energy, transformer coli winding temperature is caused to increase.Especially for high-power transformer, oil
Transformer oil in leaching transformer plays dual parts of insulation and heat dissipation.For the coil windings of transformer, especially low pressure
Electric current is big when winding is due to transformer station high-voltage side bus, and the heat of generation is more, temperature highest, for manufacturing the insulating materials of transformer
Insulation performance influences very big.The excessively high bulk life time for not only influencing transformer of temperature rise, and will affect the safe operation of transformer.
The oil-immersed type transformer of the prior art generally takes the mode that cooling fin is arranged on the outside of fuel tank to radiate, but inside transformer
Heat mostly come from semiconductor substrate, since the heating conduction of transformer oil itself is bad, so that the temperature at fuel tank center
And the temperature difference on the outside of fuel tank is very big, heat-conducting effect is bad, and the setting radiator outside fuel tank, there is that structure is complicated, body
Product heaviness, the defect of high production cost.
Summary of the invention
To solve the above problem in the prior art, the purpose of this utility model is that: a kind of three-dimensional winding iron core oil immersion is provided
Formula transformer, good heat dissipation effect, structure is simple, and manufacturing cost is low, can effectively solve the heat dissipation problem of oil-immersed transformer.
In order to achieve the above object, the technical solution adopted in the utility model are as follows: a kind of three-dimensional winding iron core oil-immersed transformer,
Including fuel tank, HV Terminal, low-voltage terminal and iron core, the inner cavity of fuel tank fills transformer oil, HV Terminal and low-voltage terminal point
It is not connect with coil windings, the coil windings are wound around composition transformer core, transformer core on iron core and are immersed in fuel tank
In interior transformer oil, it is provided with heat dissipation tank above the fuel tank, heat dissipation tank is communicated by convection tube with fuel tank inner chamber, described right
Flow tube is flat hollow pipe, and the heat dissipation box enclosure is provided with radiating fin outward, fills and be equipped in the heat dissipation box cavity of heat dissipation tank
Transformer oil, heat dissipation tank top have set up respiratory siphon, respiratory siphon and heat dissipation tank external communication, and the side of the heat dissipation tank is set
It is equipped with oil level indicator；Further, it is provided with hothouse at the top of the heat dissipation box cavity, is filled inside hothouse equipped with desiccant,
Respiratory siphon at the top of heat dissipation tank is connect with hothouse；Further, the side of the heat dissipation tank is provided with maintenance mouth, safeguards on mouth
It is provided with sealing cover；Further, the intracavity bottom of the fuel tank is provided with expansion chamber, and expansion chamber bottom is provided with bleeder plug；
Further, the longitudinal cross-section of the expansion chamber is inverted trapezoid cross section.
The positive advantageous effects of the utility model are: by the way that the heat dissipation communicated with fuel tank is arranged above fuel tank
Case flows after the transformer oil of fuel tank internal is heated to top, and since convection tube is flat tube, interior flow diameter is big, after being heated
Oil entered after heat exchanger by convection tube and exchange heat with the external world, cold oil passes through convection tube again and is back in fuel tank, fuel tank internal
Transformer oil forms heat convection, and heat exchange efficiency is significantly larger than traditional conduction heat exchange mode, and by respiratory siphon and dissipating
Hothouse is set between in hot tank, makes to enter the air inside heat exchanger by being dried, effectively prevents transformer oil
Moisture absorption denaturalization phenomenon, extends the maintenance period of equipment, and tank bottoms are arranged expansion chamber, make dirt, the impurity in transformer oil
It is deposited to expansion chamber bottom to release by bleeder plug, extends the service life of transformer oil, expansion chamber is arranged to inverted trapezoidal,
The more conducively discharge of dirt.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Fig. 2 is the schematic cross-sectional view of the utility model one embodiment.
Specific embodiment
In order to more fully explain the implementation of the utility model, the embodiment of the utility model presented below, these realities
Applying example is only the elaboration to the utility model, does not limit the scope of the utility model.
It is attached in the figure, it is marked as 1. fuel tanks in conjunction with attached drawing to the further details of explanation of the utility model；2. heat dissipation tank；
3. respiratory siphon；4. sealing cover；5. expansion chamber；6. bleeder plug；7. oil level indicator；8. radiating fin；9. transformer core；
10. convection tube；11. hothouse.
It is as shown in the figure: a kind of three-dimensional winding iron core oil-immersed transformer, including fuel tank, HV Terminal, low-voltage terminal and iron core,
The inner cavity of fuel tank fills transformer oil, and HV Terminal is connect with coil windings respectively with low-voltage terminal, and coil windings are wound around iron
Transformer core 9 is constituted on core, transformer core is immersed in the transformer oil in fuel tank, it is provided with heat dissipation tank 2 above fuel tank,
Heat dissipation tank is communicated by convection tube 10 with fuel tank inner chamber, and the convection tube in the present embodiment is flat hollow pipe, and internal diameter is big, is conducive to
The convection current of transformer oil in fuel tank and heat dissipation tank is provided with radiating fin 8 in heat dissipation box enclosure outward, improves heat dissipation tank
Heat exchange efficiency, the heat dissipation box cavity of heat dissipation tank are filled equipped with transformer oil, transformer oil underfill heat dissipation tank, the pasta in heat dissipation tank
It is provided with hothouse 11 between the top of heat dissipation box cavity, is filled inside hothouse equipped with desiccant, heat dissipation tank top is provided with
Respiratory siphon is connect with hothouse, and respiratory siphon guarantees that the oil in heat dissipation tank smoothly circulates into fuel tank with heat dissipation tank external communication,
The side of heat dissipation tank is provided with oil level indicator 7, convenient for the oil level situation in observation heat dissipation tank, the side of heat dissipation tank is provided with dimension
Retaining is safeguarded and is provided with sealing cover 4 on mouth for heat dissipation tank internal maintenance；The intracavity bottom of fuel tank is provided with the heavy of inverted trapezoidal
Room 5 drops, and expansion chamber bottom is provided with bleeder plug 6.
For the utility model by the way that the heat dissipation tank communicated with fuel tank is arranged above fuel tank, the transformer oil of fuel tank internal is heated
Backward top flowing, since convection tube is flat tube, interior flow diameter is big, after the oil after being heated enters heat exchanger by convection tube
It exchanges heat with the external world, cold oil passes through convection tube again and is back in fuel tank, and the transformer oil of fuel tank internal forms heat convection, heat exchange effect
Rate is significantly larger than traditional conduction heat exchange mode, and by the way that hothouse is arranged between in respiratory siphon and heat dissipation tank, makes to enter
Air inside heat exchanger effectively prevents the moisture absorption denaturalization phenomenon of transformer oil, extends the dimension of equipment by being dried
It protects the period, expansion chamber is arranged in tank bottoms, so that the dirt in transformer oil, impurity is deposited to expansion chamber bottom and is put by bleeder plug
Out, expansion chamber is arranged to inverted trapezoidal, the more conducively discharge of dirt by the service life for extending transformer oil.
After the embodiments of the present invention is described in detail, one of ordinary skilled in the art is clearly understood that,
Various change and modification can be carried out by not departing under above-mentioned claim and spirit, all according to the technical essence of the utility model
Any simple modification, equivalent change and modification to the above embodiments belong to the range of technical solutions of the utility model,
And the utility model is also not only restricted to the embodiment of example in specification.
Claims (5)
1. a kind of three-dimensional winding iron core oil-immersed transformer, including fuel tank, HV Terminal, low-voltage terminal and iron core, the inner cavity of fuel tank
Transformer oil is filled, HV Terminal is connect with coil windings respectively with low-voltage terminal, and the coil windings are wound around structure on iron core
At transformer core, transformer core is immersed in the transformer oil in fuel tank, it is characterised in that: is provided with above the fuel tank
Radiator, radiator are communicated by convection tube with fuel tank inner chamber, the convection tube be flat hollow pipe, the radiator shell to
It is provided with radiating fin outside, is filled in the lumen of radiator of radiator equipped with transformer oil, radiator top has set up breathing
Pipe, respiratory siphon and radiator external communication, the side of the radiator is provided with oil level indicator.
2. a kind of three-dimensional winding iron core oil-immersed transformer according to claim 1, it is characterised in that: in the radiator
It is provided with hothouse at the top of chamber, is filled inside hothouse equipped with desiccant, the respiratory siphon at the top of radiator is connect with hothouse.
3. a kind of three-dimensional winding iron core oil-immersed transformer according to claim 2, it is characterised in that: the side of the radiator
Face is provided with maintenance mouth, safeguards and is provided with sealing cover on mouth.
4. a kind of according to claim 1 or 2 or 3 any three-dimensional winding iron core oil-immersed transformers, it is characterised in that: described
The intracavity bottom of fuel tank is provided with expansion chamber, and expansion chamber bottom is provided with bleeder plug.
5. a kind of three-dimensional winding iron core oil-immersed transformer according to claim 4, which is characterized in that the expansion chamber is indulged
It is inverted trapezoid cross section to section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820866657.XU CN208256423U (en) | 2018-06-06 | 2018-06-06 | A kind of three-dimensional winding iron core oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820866657.XU CN208256423U (en) | 2018-06-06 | 2018-06-06 | A kind of three-dimensional winding iron core oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208256423U true CN208256423U (en) | 2018-12-18 |
Family
ID=64653632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820866657.XU Expired - Fee Related CN208256423U (en) | 2018-06-06 | 2018-06-06 | A kind of three-dimensional winding iron core oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208256423U (en) |
-
2018
- 2018-06-06 CN CN201820866657.XU patent/CN208256423U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 |