CN110379596A - A kind of power transformer for accelerating transformer oil circulation - Google Patents
A kind of power transformer for accelerating transformer oil circulation Download PDFInfo
- Publication number
- CN110379596A CN110379596A CN201910684114.5A CN201910684114A CN110379596A CN 110379596 A CN110379596 A CN 110379596A CN 201910684114 A CN201910684114 A CN 201910684114A CN 110379596 A CN110379596 A CN 110379596A
- Authority
- CN
- China
- Prior art keywords
- transformer
- oil
- accelerating
- clamping piece
- immersed pump
- 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
- 238000004804 winding Methods 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- H01F27/08—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
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- 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
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Abstract
A kind of power transformer for accelerating transformer oil circulation provided by the invention, including transformer body, the radiator being mounted on outside transformer body and the oil-immersed pump being mounted in transformer body, oil-immersed pump, which is built in transformer and directly connect with the low-pressure side of transformer, obtains power supply.The present invention can accelerate the transformer oil circulation rate of transformer effectively to increase radiating rate, reduce transformer station high-voltage side bus temperature, improve transformer overload ability, extend transformer service life.
Description
Technical field
The present invention relates to a kind of power transformers of quickening transformer oil circulation.
Background technique
Usual transformer oil realizes the power of circulation from transformer oil temperature variation and then the variation and heat expansion of density
Shrinkage, therefore, the speed of transformer oil circulation are that slowly, the speed of heat exchange is also slowly, cooling effect
Also it is limited.To reduce the raised temperature of transformer temperature caused by transformer station high-voltage side bus more efficiently it is necessary to trying every possible means
Reinforce the circulation rate and rate of heat exchange of transformer oil.
If a kind of oil-immersed power transformer of Publication No. CN105405591A is by being mounted in transformer tank body
Condenser accelerates the cooling velocity of coolant liquid, but the circulation rate of coolant liquid is equally slow, and cooling effect is unsatisfactory；
A kind of such as Publication No. CN201796683U has mostly a kind of large oil immersed power transformer of the type of cooling,
It is radiated simultaneously to transformer jointly by fan and coolant liquid, fan and oil-immersed pump are installed in outside radiator, be in transformation
Be welded pipeline on device cabinet, and it is bulky that structure is complicated.Fan is not obvious the effect to radiate outside transformer, also increases
The volume and cost of manufacture for having added transformer, oil-immersed pump is placed in outside transformer, and the circulation line length of transformer oil, which increases, to be increased
The big lift of oil-immersed pump.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of power transformers of quickening transformer oil circulation.
The present invention is achieved by the following technical programs.
A kind of power transformer for accelerating transformer oil circulation provided by the invention, including transformer body and it is mounted on change
The external radiator of depressor sheet；The transformer body include its shell and installation transformer core inside the shell and it is several around
Group, the winding technique pass through upper clamping piece and lower clamping piece in the middle part of transformer core, the upper and lower ends of transformer core respectively
It clamps, is tensed between upper clamping piece and lower clamping piece by tension part, the transformer device ontology and radiator form a closing knot
Structure, transformer are provided with transformer oil, circulation oil duct are provided between radiator and transformer body and by being mounted on transformation
The intrinsic oil-immersed pump of device accelerates transformer oil circulation rate.
The oil return opening and oil inlet of the radiator are separately positioned on the lower end and upper end of transformer body outer casing inner wall, institute
It states oil-immersed pump to be fixed on lower clamping piece and tension part, the installation site of oil-immersed pump is at the oil return opening of radiator and adjacent at two
In gap between winding.
The oil outlet of the oil-immersed pump extends to the middle part of winding by flowline.
Cushion block is provided between the winding and upper clamping piece, lower clamping piece.
Any phase line of low-pressure side and zero curve forming circuit in the power supply and transformer of the oil-immersed pump.
Temperature detect switch (TDS) is installed in the oil-immersed pump and any phase line connection line of transformer.
The temperature detect switch (TDS) is mounted on the top of transformer core.
The upper clamping piece and lower clamping piece include two blocks of channel steels, two pieces of channel steel both ends tensed by bolt after by transformer fe
The upper and lower ends of core clamp.
The tension part is bolt.
The lift of the oil-immersed pump is that flow is 300-600L/h.
The beneficial effects of the present invention are: the transformer oil circulation rate of transformer can be accelerated effectively to increase heat dissipation
Speed reduces transformer station high-voltage side bus temperature, improves transformer overload ability, extends transformer service life.Due in oil-immersed pump
Be placed in transformer and directly connect with the low-pressure side of transformer acquisition power supply, the volume of transformer is unchanged, oil-immersed pump it is interior
It sets but also oil circuit shortens, the transformer for making the circulation of transformer oil only pass through smaller lift is realized.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is overlooking structure diagram of the invention；
Fig. 3 is oil-immersed pump circuit theory schematic diagram of the invention；
Fig. 4 is oil-immersed pump operation principle schematic diagram of the invention；
In figure: 1- temperature detect switch (TDS), 2- oil-immersed pump, 3- flowline, 4- oil inlet, 5- oil return opening, 6- transformer core, 7- folder
Tight screw rod, 8- upper clamping piece, 9- lower clamping piece, 10- cushion block, 11- winding.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
A kind of power transformer for accelerating transformer oil circulation, including transformer body and is mounted on outside transformer body
Radiator；The transformer body includes its shell and installation transformer core 6 and several windings 11 inside the shell, it is described around
Group 11 is wound on the middle part of transformer core 6, and the upper and lower ends of transformer core 6 pass through upper clamping piece 8 respectively and lower clamping piece 9 presss from both sides
Tightly, it is tensed between upper clamping piece 8 and lower clamping piece 9 by tension part, the transformer device ontology and radiator form a closing knot
Structure, transformer are provided with transformer oil, circulation oil duct are provided between radiator and transformer body and by being mounted on transformation
The intrinsic oil-immersed pump 2 of device accelerates transformer oil circulation rate.
The oil return opening and oil inlet of the radiator are separately positioned on the lower end and upper end of the inner wall of transformer body shell,
The oil-immersed pump 2 is fixed on lower clamping piece 9 and tension part, and the installation site of oil-immersed pump 2 is at the oil return opening of radiator at two
In gap between adjacent winding 11.
The oil outlet of the oil-immersed pump 2 extends to the middle part of winding 11 by flowline 3.
Cushion block 10 is provided between the winding 11 and upper clamping piece 8, lower clamping piece 9.
Any phase line of low-pressure side and zero curve forming circuit in the power supply and transformer of the oil-immersed pump 2.
Temperature detect switch (TDS) is installed in the oil-immersed pump 2 and any phase line connection line of transformer.
The temperature detect switch (TDS) is thermoswitch, is mounted on the top of transformer core 6.
The upper clamping piece 8 and lower clamping piece 9 include two blocks of channel steels, two pieces of channel steel both ends by after bolt tension by transformer
The upper and lower ends of iron core 6 clamp.
The tension part is bolt.
The flow of the oil-immersed pump 2 is 300-600L/h.
The application oil-immersed pump power-assisted increases transformer oil part by flowing velocity, while the cold oil of lower position is pumped into height
The hot oil area of position, dilutes the heat of a part of hot oil, and accelerate the speed of heat exchange, reaches and further decrease transformer body temperature
The purpose of degree.
Multiple low lift oil-immersed pumps are installed inside oil-immersed power transformer, installation site is inside transformer-cabinet
Lower part, oil-immersed pump oil inlet is just in heat-dissipating pipe or cooling fin low level oil return opening position, and oil-immersed pump oil outlet is just in winding one
Half height position.The installation site of oil-immersed pump larger place of calorific value between every two winding, the number of oil-immersed pump be 4 or
4 or more.The effect of oil-immersed pump is: by by transformer oil part of the transformer radiator after cooling pump in the middle part of upper winding with
Upper position.Circulating path of the transformer oil inside transformer-cabinet is: the hot oil on transformer body top is above radiator
Oil inlet enter radiator, gradually radiate in radiator, as transformer oil temperature reduces, the density of transformer oil is gradually
Increase, transformer oil slowly flows from top to bottom in radiator, to radiator below oil return opening, flow back under transformer-cabinet
The transformer temperature in portion, transformer body lower part is lower, the lower transformer oil of these temperature, from transformer winding and iron
Core obtains heat, and with the raising of temperature gradually, density is gradually reduced, and low density transformer oil up moves, from transformer
Lower box is moved to transformer-cabinet top, enters back into radiator oil inlet, shuttling movement is achieved.In motion process,
It is constantly real from the oil inlet-radiator-bottom radiator oil return opening-transformer body lower part-middle part-top on radiator top
Now circulation and heat exchange gradually bring out the heat that transformer body generates, and achieve the purpose that reduce transformer temperature.
By the circulating path of transformer oil and mode: transformer oil realizes that the power of circulation comes from temperature of oil in transformer
Degree variation and then the variation of density and expand with heat and contract with cold, therefore, the speed of transformer oil circulation be it is slowly, heat exchange
Speed is also slowly that cooling effect is also limited.To transformation caused by the low transformer station high-voltage side bus of more efficient sinking
The raised temperature of device temperature is it is necessary to trying every possible means to reinforce the circulation rate and rate of heat exchange of transformer oil.
The purpose of the technical program is exactly several small oil-immersed pumps to be mounted in former transformer belly, and small oil-immersed pump is complete
It is immersed in transformer oil entirely, oil-immersed pump is mounted on lower clamping piece and stretching screw, gap of the position between two windings
Place, two sides are intended to install, and at least two oil-immersed pump of side will at least install altogether 4 oil-immersed pumps.Make transformation with oil-immersed pump power-assisted
Device oil part increases flowing velocity, while the cold oil of lower position being pumped into high-order hot oil area, dilutes the heat of a part of hot oil,
And accelerate the speed of heat exchange, achieve the purpose that further decrease transformer body temperature, the 220V AC power source of oil-immersed pump is just
Ground is derived from any phase line of transformer-cabinet internal transformer low-pressure side and zero curve；To avoid the long-term live line work of oil-immersed pump, latent oil
The work of pump is controlled by thermoswitch, when oil temperature increase to a certain extent (45~50 DEG C), automatically begin to pump oil！Oil temperature drops to
(45~40 DEG C) to a certain degree, are automatically stopped pump oil！The oil inlet of oil-immersed pump cannot be mounted in the oil return opening position of radiator
Transformer bottommost, bottommost oil in may have impurity or moisture；The oil outlet of oil-immersed pump in transformer winding medium position, in
The above oil temperature in portion is higher, and oil-immersed pump will can rush the higher hot oil of dilute temperature on cold oil pump, while accelerate cold hot-oil circulation
Speed；Position oil temperature usually between two phase winding of transformer is higher, therefore oil-immersed pump should be mounted on oil temperature and be easy to increase
Position；Oil-immersed pump is small in size, but lift high flow capacity cannot also need not be large very much, properly just.Lift is 0.6-1.3 meters general,
The general 300-600L/h of flow, oil-immersed pump is small in size, low in energy consumption: 2-25 watts, low noise: mute oil-immersed pump.
Claims (10)
1. a kind of power transformer for accelerating transformer oil circulation including transformer body and is mounted on dissipating outside transformer body
Hot device, it is characterised in that: the transformer body include its shell and installation transformer core (6) inside the shell and it is several around
Group (11), the winding (11) are wound on the middle part of transformer core (6), and the upper and lower ends of transformer core (6) pass through respectively
Upper clamping piece (8) and lower clamping piece (9) clamp, and are tensed between upper clamping piece (8) and lower clamping piece (9) by tension part, the transformer device
Ontology and radiator form an enclosed construction, and transformer is provided with transformer oil, is arranged between radiator and transformer body
There is circulation oil duct and the oil-immersed pump by being mounted in transformer body (2) accelerates transformer oil circulation rate.
2. a kind of power transformer for accelerating transformer oil circulation as described in claim 1, it is characterised in that: the radiator
Oil return opening and oil inlet be separately positioned on the lower end and upper end of transformer body outer casing inner wall, the oil-immersed pump (2) is fixed on
On lower clamping piece (9) and tension part, the installation site of oil-immersed pump (2) is at the oil return opening of radiator and in two adjacent windings (11)
Between gap in.
3. a kind of power transformer for accelerating transformer oil circulation as described in claim 1, it is characterised in that: the oil-immersed pump
(2) oil outlet extends to the middle part of winding (11) by flowline (3).
4. a kind of power transformer for accelerating transformer oil circulation as claimed in claim 3, it is characterised in that: the winding
(11) it is provided between upper clamping piece (8), lower clamping piece (9) cushion block (10).
5. a kind of power transformer for accelerating transformer oil circulation as described in claim 1, it is characterised in that: the oil-immersed pump
(2) any phase line of low-pressure side and zero curve forming circuit in power supply and transformer.
6. a kind of power transformer for accelerating transformer oil circulation as described in claim 1, it is characterised in that: the oil-immersed pump
(2) and temperature detect switch (TDS) is installed in any phase line connection line of transformer.
7. a kind of power transformer for accelerating transformer oil circulation as claimed in claim 6, it is characterised in that: the temperature control is opened
Pass is mounted on the top of transformer core (6).
8. a kind of power transformer for accelerating transformer oil circulation as described in claim 1, it is characterised in that: the upper clamping piece
(8) and lower clamping piece (9) includes two blocks of channel steels, and two pieces of channel steel both ends will be above and below transformer core (6) after being tensed by bolt
Both ends clamp.
9. a kind of power transformer for accelerating transformer oil circulation as described in claim 1, it is characterised in that: the tension part
For bolt.
10. a kind of power transformer for accelerating transformer oil circulation as described in claim 1, it is characterised in that: the latent oil
Pump (2) flow is 300-600L/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910684114.5A CN110379596A (en) | 2019-07-26 | 2019-07-26 | A kind of power transformer for accelerating transformer oil circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910684114.5A CN110379596A (en) | 2019-07-26 | 2019-07-26 | A kind of power transformer for accelerating transformer oil circulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110379596A true CN110379596A (en) | 2019-10-25 |
Family
ID=68256575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910684114.5A Pending CN110379596A (en) | 2019-07-26 | 2019-07-26 | A kind of power transformer for accelerating transformer oil circulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110379596A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203573777U (en) * | 2013-12-06 | 2014-04-30 | 沈阳市敦敏电气有限责任公司 | Forced oil circulation self-cooled transformer |
| CN204088010U (en) * | 2014-09-12 | 2015-01-07 | 江苏新特变科技股份有限公司 | Oil-filled transformer |
| CN205159041U (en) * | 2015-12-04 | 2016-04-13 | 网为电气（邳州）有限公司 | Effectively reduce temperature rise, improvement overload capacity's metallic glass transformer structure |
| CN208400668U (en) * | 2018-07-04 | 2019-01-18 | 江苏泽锦新能源科技有限公司 | A kind of oil immersed type filter reactor |
| CN208521733U (en) * | 2018-08-17 | 2019-02-19 | 合肥元贞电力科技股份有限公司 | A kind of removable cooling device of transformer |
| CN109786075A (en) * | 2019-03-27 | 2019-05-21 | 华翔翔能电气股份有限公司 | A kind of large capacity oil-immersed transformer |
| CN210006574U (en) * | 2019-07-26 | 2020-01-31 | 六盘水金星机电设备有限公司 | power transformer for accelerating transformer oil circulation |
-
2019
- 2019-07-26 CN CN201910684114.5A patent/CN110379596A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203573777U (en) * | 2013-12-06 | 2014-04-30 | 沈阳市敦敏电气有限责任公司 | Forced oil circulation self-cooled transformer |
| CN204088010U (en) * | 2014-09-12 | 2015-01-07 | 江苏新特变科技股份有限公司 | Oil-filled transformer |
| CN205159041U (en) * | 2015-12-04 | 2016-04-13 | 网为电气（邳州）有限公司 | Effectively reduce temperature rise, improvement overload capacity's metallic glass transformer structure |
| CN208400668U (en) * | 2018-07-04 | 2019-01-18 | 江苏泽锦新能源科技有限公司 | A kind of oil immersed type filter reactor |
| CN208521733U (en) * | 2018-08-17 | 2019-02-19 | 合肥元贞电力科技股份有限公司 | A kind of removable cooling device of transformer |
| CN109786075A (en) * | 2019-03-27 | 2019-05-21 | 华翔翔能电气股份有限公司 | A kind of large capacity oil-immersed transformer |
| CN210006574U (en) * | 2019-07-26 | 2020-01-31 | 六盘水金星机电设备有限公司 | power transformer for accelerating transformer oil circulation |
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| 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 |
Application publication date: 20191025 |