CN110491644A - A method of accelerating the heat dissipation of oil-immersed transformer iron core - Google Patents
A method of accelerating the heat dissipation of oil-immersed transformer iron core Download PDFInfo
- Publication number
- CN110491644A CN110491644A CN201910686695.6A CN201910686695A CN110491644A CN 110491644 A CN110491644 A CN 110491644A CN 201910686695 A CN201910686695 A CN 201910686695A CN 110491644 A CN110491644 A CN 110491644A
- Authority
- CN
- China
- Prior art keywords
- transformer
- iron core
- oil
- heat
- conductive pad
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
Abstract
The invention discloses a kind of methods of quickening oil-immersed transformer iron core heat dissipation, comprising the following steps: heat conductive pad step 1: is separately mounted to the upper end and lower end of iron core；Step 2: upper low pressure winding and high-voltage winding are surrounded outside iron core；Step 3: then the iron core of both ends installation heat conductive pad is installed in transformer case, step 4: connects oil pipe respectively in transformer case both sides external；Step 5: will be in transformer oil injection transformer shell, step 6: it is radiated by siphunculus and heat conductive pad, the inventive method is reasonable, the heat that iron core generates directly passes through heat conductive pad and heat is passed to rapidly transformer case, it is made of again due to heat conductive pad insulating materials, vortex etc. will not be generated and generate new burden to transformer, reach the heat dissipation burden for mitigating transformer oil, increase whole heat dissipation effect.
Description
Technical field
The present invention relates to transformer heat dissipating method technical fields, specially a kind of to accelerate what oil-immersed transformer iron core radiated
Method.
Background technique
Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is primary coil, secondary
Grade coil and iron core (magnetic core).Major function has: voltage transformation, current transformation, impedance transformation, isolation, pressure stabilizing (magnetic saturation transformation
Device) etc..Can be divided into, according to use: (electric furnace becomes, rectifies change, power frequency testing transformer, pressure regulation for power transformer and special transformer
Device, mining change, audio-frequency transformer, intermediate-frequency transformer, high frequency transformer, impact transformer, instrument transformer, electronic transformer,
Reactor, mutual inductor etc.).
Distribution transformer is one of the important equipment in industrial and mining enterprises and civil buildings power supply-distribution system, it is by 10(6) kV
Or 35kV network voltage is down to the 230/400V busbar voltage that user uses.Such product is suitable for exchange 50(60) Hz, three-phase
The maximum rated single-phase maximum rated capacity 833kVA of capacity 2500kVA(, is not recommended to use single-phase transformer generally), it can be indoors
It is (outer) use, capacity 315kVA and it is following when it is mountable on bar, environment temperature be not higher than 40 DEG C, be not less than -25 DEG C, most
30 DEG C of high mean daily temperature, 20 DEG C of highest year-round average temperature, relative humidity is no more than 25 DEG C of 90%(environment temperature), height above sea level
No more than 1000m.If be not inconsistent with above-mentioned use condition, quota adjustment appropriate should be made by the pertinent regulations of GB6450-86.
Existing oil immersed self cooled transformer includes transformer case, iron core, low pressure winding, high-voltage winding etc..For safety,
Shell needs to be grounded.Core material is generally silicon steel plate stacking and forms, can while can obtaining biggish magnetic induction intensity in this way
To reduce vortex, in order to eliminate the suspended voltage of iron core over the ground without will form circulation, on iron core more only and transformer case
It connects (ground connection).In order to avoid circulation, vortex and safety, iron core just cannot directly contact with shell and facilitate heat dissipation, and oil immersion is certainly
Cold iron core inside transformer can only take away heat by transformer oil circulation and realize heat dissipation, it would therefore be highly desirable to a kind of improved technology
To solve the problems, such as this in the presence of the prior art.
Summary of the invention
The purpose of the present invention is to provide a kind of methods of quickening oil-immersed transformer iron core heat dissipation, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme: a kind of accelerate what oil-immersed transformer iron core radiated
Method, comprising the following steps:
Step 1: heat conductive pad is made according to the specification of iron core and transformer case, heat conductive pad is separately mounted to iron core
Upper end and lower end；
Step 2: surrounding upper low pressure winding outside iron core, around upper high-voltage winding after reserved oil duct outside low pressure winding；
Step 3: then the iron core of both ends installation heat conductive pad is installed in transformer case, makes the heat conductive pad and transformation of upper end
Device cover top portion lower surface is connected, and the heat conductive pad of lower end is connected with transformer case upper base surface, and is bolted；
Step 4: oil pipe is connected respectively in transformer case both sides external；
Step 5: in transformer oil injection transformer shell, will make to fill up inside transformer case and two sides oil pipe；
Step 6: when transformer works, high-voltage winding, low pressure winding generate heat due to there are electric current, these heat transfers are given
These heat transfers are given temperature lower transformer case by the flowing of the transformer oil contacted with them, transformer oil, then
The heat that iron core generates directly passes through heat conductive pad and heat is passed to rapidly transformer case, increases whole heat dissipation effect.
Preferably, iron core is pressed by several silicon steel sheet stacks in the step 1.
Preferably, heat conductive pad material therefor has insulation high thermal conductivity in the step 1, is oxygen in the heat conductive pad
Change beryllium ceramic material, surface is covered by a kind of material that chemical property is more stable, and covering material is the epoxy for being mixed with beryllium oxide
Resin, some gases for avoiding beryllium oxide material from generating when working with transformer are directly contacted and are reacted.
Preferably, transformer case is made of the preferable metal material of thermal conductivity in the step 1.
Preferably, bolt-through heat conductive pad is connected with core ends in the step 3, the bolt and transformer case
Junction is additionally provided with sealing ring.
Preferably, oil pipe and transformer case junction are provided with O-ring in the step 4.
Compared with prior art, the beneficial effects of the present invention are:
Method is rationally effective, and the heat that iron core generates directly passes through heat conductive pad and heat is passed to rapidly transformer case, and by
It is made of in heat conductive pad insulating materials, vortex etc. will not be generated and generate new burden to transformer, reach and mitigate transformer oil
Heat dissipation burden, increases whole heat dissipation effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of transformer involved in the present invention.
In figure: 1, transformer case；2, iron core；3, low pressure winding；4, high-voltage winding；5, heat conductive pad.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution: a method of accelerating the heat dissipation of oil-immersed transformer iron core, including following step
It is rapid:
Step 1: heat conductive pad 5 is made according to the specification of iron core 2 and transformer case 1, heat conductive pad 5 is separately mounted to iron
The upper end and lower end of core 2；
Step 2: surrounding upper low pressure winding 3 outside iron core 2, around upper high-voltage winding 4 after reserved oil duct outside low pressure winding 3；
The iron core 2 of both ends installation heat conductive pad 5: being then installed in transformer case 1 by step 3, make the heat conductive pad 5 of upper end with
1 top lower surface of transformer case is connected, and the heat conductive pad 5 of lower end is connected with 1 upper base surface of transformer case, and passes through bolt
It is fixed；
Step 4: oil pipe is connected respectively in 1 both sides external of transformer case；
Step 5: in transformer oil injection transformer shell 1, will make to fill up inside transformer case 1 and two sides oil pipe；
Step 6: when transformer works, high-voltage winding 4, low pressure winding 3 generate heat due to there are electric current, these heat transfers
The transformer oil that they are contacted is given, these heat transfers are given temperature lower transformer case 1 by the flowing of transformer oil, with
The heat that iron core 2 generates afterwards directly passes through heat conductive pad 5 and heat is passed to rapidly to transformer case 1, increases whole heat dissipation
Effect.
Wherein, transformer case 1 is made of the preferable metal material of thermal conductivity, and iron core 2 is by several silicon steel plate stackings
At.
Wherein, 5 material therefor of heat conductive pad has insulation high thermal conductivity, is niberlox, surface in heat conductive pad 5
It is covered by a kind of material that chemical property is more stable, covering material is the epoxy resin for being mixed with beryllium oxide, avoids beryllium oxide material
Expect that some gases generated when working with transformer directly contact and react, niberlox has insulation and high-termal conductivity
Can, the far super iron of thermal coefficient and common iron, even more than aluminium alloy.
Wherein, bolt-through heat conductive pad 5 is connected with 2 end of iron core, and bolt is additionally provided with close with 1 junction of transformer case
Seal.
Wherein, oil pipe and 1 junction of transformer case are provided with O-ring.
As shown in Figure 1,1 upper end of iron core and lower end are provided with 5 heat conductive pads, 2 periphery of iron core is provided with low pressure winding 3 and height
Winding 4 is pressed, oil duct is reserved between low pressure winding 3 and high-voltage winding 4, is provided with oil pipe on the outside of transformer case 1.
When transformer works, high-low pressure winding generates heat due to there are electric current, and iron core is produced due to being vortexed in silicon steel sheet
Heat amount, on the one hand, these heats can pass to the transformer oil contacted with them, and the flowing of transformer oil passes these heats
It passs the lower transformer case of temperature and some thermal components and realizes heat dissipation purpose.On the other hand, the heat that iron core generates
Heat is directly passed to rapidly by transformer case by heat conductive pad, and since heat conductive pad is made of insulating materials, will not be generated
Vortex etc. generates new burden to transformer, reaches the heat dissipation burden for mitigating transformer oil, increases whole heat dissipation effect.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of method for accelerating the heat dissipation of oil-immersed transformer iron core, it is characterised in that: the following steps are included:
Step 1: heat conductive pad is made according to the specification of iron core and transformer case, heat conductive pad is separately mounted to iron core
Upper end and lower end；
Step 2: surrounding upper low pressure winding outside iron core, around upper high-voltage winding after reserved oil duct outside low pressure winding；
Step 3: then the iron core of both ends installation heat conductive pad is installed in transformer case, makes the heat conductive pad and transformation of upper end
Device cover top portion lower surface is connected, and the heat conductive pad of lower end is connected with transformer case upper base surface, and is bolted；
Step 4: oil pipe is connected respectively in transformer case both sides external；
Step 5: in transformer oil injection transformer shell, will make to fill up inside transformer case and two sides oil pipe；
Step 6: when transformer works, high-voltage winding, low pressure winding generate heat due to there are electric current, these heat transfers are given
These heat transfers are given temperature lower transformer case by the flowing of the transformer oil contacted with them, transformer oil, then
The heat that iron core generates directly passes through heat conductive pad and heat is passed to rapidly transformer case, increases whole heat dissipation effect.
2. a kind of method for accelerating the heat dissipation of oil-immersed transformer iron core according to claim 1, it is characterised in that: the step
Iron core is pressed by several silicon steel sheet stacks in rapid one.
3. a kind of method for accelerating the heat dissipation of oil-immersed transformer iron core according to claim 1, it is characterised in that: the step
Heat conductive pad material therefor has insulation high thermal conductivity in rapid one, is niberlox in the heat conductive pad, surface is by one
The more stable material covering of kind of chemical property, covering material is the epoxy resin for being mixed with beryllium oxide, avoid beryllium oxide material with
Some gases that transformer generates when working directly are contacted and are reacted.
4. a kind of method for accelerating the heat dissipation of oil-immersed transformer iron core according to claim 1, it is characterised in that: the step
Transformer case is made of the preferable metal material of thermal conductivity in rapid one.
5. a kind of method for accelerating the heat dissipation of oil-immersed transformer iron core according to claim 1, it is characterised in that: the step
Bolt-through heat conductive pad is connected with core ends in rapid three, and the bolt and transformer case junction are additionally provided with sealing ring.
6. a kind of method for accelerating the heat dissipation of oil-immersed transformer iron core according to claim 1, it is characterised in that: the step
Oil pipe and transformer case junction are provided with O-ring in rapid four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910686695.6A CN110491644A (en) | 2019-07-29 | 2019-07-29 | A method of accelerating the heat dissipation of oil-immersed transformer iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910686695.6A CN110491644A (en) | 2019-07-29 | 2019-07-29 | A method of accelerating the heat dissipation of oil-immersed transformer iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110491644A true CN110491644A (en) | 2019-11-22 |
Family
ID=68548737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910686695.6A Pending CN110491644A (en) | 2019-07-29 | 2019-07-29 | A method of accelerating the heat dissipation of oil-immersed transformer iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110491644A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2162702Y (en) * | 1993-06-16 | 1994-04-20 | 杨书林 | Dry transformer |
| CN102751077A (en) * | 2012-01-04 | 2012-10-24 | 吴江市东泰电力特种开关有限公司 | Transformer |
| JP2016096271A (en) * | 2014-11-14 | 2016-05-26 | 株式会社オートネットワーク技術研究所 | Reactor |
-
2019
- 2019-07-29 CN CN201910686695.6A patent/CN110491644A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2162702Y (en) * | 1993-06-16 | 1994-04-20 | 杨书林 | Dry transformer |
| CN102751077A (en) * | 2012-01-04 | 2012-10-24 | 吴江市东泰电力特种开关有限公司 | Transformer |
| JP2016096271A (en) * | 2014-11-14 | 2016-05-26 | 株式会社オートネットワーク技術研究所 | Reactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Pansini | Electrical transformers and power equipment | |
| WO2020036507A1 (en) | Smoothing and current limiting reactor of a filter device for a railway traction substation | |
| CN110491644A (en) | A method of accelerating the heat dissipation of oil-immersed transformer iron core | |
| CN108806952A (en) | A kind of 535KV energy supplies transformer | |
| CN106451167A (en) | Box-type substation with heat insulating and electromagnetic shielding functions | |
| CN213303874U (en) | Electromagnetic radiation prevention device for transformer | |
| CN208985846U (en) | A kind of dry-type transformer, transformation winding and its insulating shield cylinder | |
| CN108511138B (en) | It is a kind of high to climb electric spacing charge adaptively dissipation high voltage direct current disc insulator | |
| CN206331879U (en) | A kind of intermediate-frequency transformer | |
| CN208271708U (en) | A kind of oil-immersed transformer oil channel structure | |
| CN208444730U (en) | A kind of current transformer applied to large-scale generator | |
| CN206524567U (en) | A kind of cooling system of horizontal integration pole type transformer platform power transformation box and comprehensive distribution box | |
| WO2001008175A1 (en) | Distribution transformer | |
| CN208548233U (en) | A kind of 535KV energy supply transformer | |
| CN201829335U (en) | Outdoor box type 10kV voltage transformer | |
| CN109903957A (en) | A kind of high efficiency and heat radiation oil-immersed type transformer | |
| CN201804702U (en) | Outdoor box-type 10kV current transformer | |
| CN212063116U (en) | Power line voltage transformation control switch power supply | |
| CN211828378U (en) | Auxiliary device for enhancing performance of transformer | |
| CN108183016A (en) | A kind of novel magnetic screen reactor | |
| CN210640097U (en) | Center oil inlet and outlet type forced circulation oil immersed transformer | |
| CN215451139U (en) | Oil-immersed transformer coil iron yoke insulation mechanism | |
| CN210489382U (en) | Iron core structure of dry type transformer | |
| CN214099379U (en) | Power transformer with insulating stable shell | |
| CN101740197B (en) | Wide-frequency square-wave transformer for measurement and protection and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191122 |