CN101740202A - Built-in transformer of wind power tower barrel - Google Patents
Built-in transformer of wind power tower barrel Download PDFInfo
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- CN101740202A CN101740202A CN200810228936A CN200810228936A CN101740202A CN 101740202 A CN101740202 A CN 101740202A CN 200810228936 A CN200810228936 A CN 200810228936A CN 200810228936 A CN200810228936 A CN 200810228936A CN 101740202 A CN101740202 A CN 101740202A
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Abstract
The invention provides a built-in transformer of a wind power tower barrel, comprising a low-voltage winding, a high-voltage winding and an iron core. The structural key points are as follows: the iron core is provided with an upper iron yoke and a lower iron yoke; a side column is respectively arranged between the left end and the right end of the upper iron yoke and the lower iron yoke; the upper and lower ends of the side column are respectively connected with the left end and the right end of the iron yoke in an overlapping manner; the middle part of the iron yoke is provided with a middle column; the upper end and the lower end of the middle column are respectively connected with the middle part of the iron yoke in an overlapping manner; the side column and the middle column are respectively provided with the winding; the inner layer of the winding is provided with low-voltage coil; the outer layer of the low-voltage coil is sheathed with a high-voltage coil; clamping units are respectively arranged at the front and rear sides of the iron yoke; the low-voltage coil is wound with a copper foil; the materials pre-impregnated by DMD resin is used as the insulation between layers; a flexible grid cloth is arranged between two adjacent layers of the high-voltage winding; and the periphery of the high-voltage is provided with the solventless grid materials. The invention is characterized by compact structure, long service life, low noise, free maintenance, high reliability, no pollution, flame retardancy and the like, the probability of partial discharge is approximately zero, and the invention can be recycled after the service life is ended up.
Description
Technical field
The present invention relates to a kind of transformer, particularly relate to a kind of superior performance, novel structure, be used for the poured with epoxy resin dry-type transformer of wind power generation main frame tower cylinder built-in, belong to the wind power equipment technical field.
Background technology
Since the energy crisis, people's environmental protection consciousness is strengthened, and world's wind-powered electricity generation cause develops rapidly, and installed capacity increases sharply, and the wind-powered electricity generation industry constantly enlarges.Wind energy is a kind of nontoxic, free of contamination reproducible energy.At present, China's wind-powered electricity generation obtains develop rapidly, estimates that China's wind power generation installed capacity will reach fifty-five million KW in 2010, and the year two thousand twenty will reach 1.12 hundred million KW, as seen wind power generation has a extensive future, as the key equipment of wind power generation--and wind power transformer also has great development space.
The wind power generation transformer that uses is because the generating set single-machine capacity is less now, generally below 1500KW, cabin space is less can't hold transformation device, usually adopt combined transformer in wind field place and generator and the partial installation of tower tube, connect through the 690KV low-voltage cable, boost to 10KV or 35KV is transported to the wind field main sub-station through transformer again.This mode needs that expense, the transformer equipment of extra civil engineering contact easily, maintenance and barrier propterty possibility, environmental-protecting performance and green energy resource development and use poor, that seepage and pollution are arranged do not match yet wind field use at sea simultaneously.
At present, the power of wind turbine generator develops more than 2500KW, and external maximum wind power generating set has developed into 6000KW, and main frame tower cylinder built-in transformer will be the wind-powered electricity generation developing direction.
Summary of the invention
Purpose of the present invention just is to overcome the prior art above shortcomings, provide a kind of novel built-in transformer of wind power tower barrel, this built-in transformer of wind power tower barrel at the energy waste of current wind field transformer station, installation and operation poor reliability, and civil engineering costs takes place, operating cost increases and bring problem such as economic loss for country and user and design, and belongs to the poured with epoxy resin dry-type transformer.Have compact conformation, the life-span is long, noise is little, non-maintaining, high reliability, pollution-free, partial discharge probability are similar to zero, characteristics such as recyclable utilization behind difficult combustion fire prevention and the life termination.
The technical solution that the present invention provides is: this built-in transformer of wind power tower barrel, comprise low pressure winding, high pressure winding, iron core, upper clamping piece, lower clamping piece, its structural feature is: iron core is provided with upper and lower iron yoke, be provided with left side post between the left end of upper and lower iron yoke, the two ends up and down of left side post respectively with the left end of upper and lower iron yoke overlap joint, be provided with the right post between the right-hand member of upper and lower iron yoke, the two ends up and down of the right post respectively with the right-hand member of upper and lower iron yoke overlap joint; The middle part of upper and lower iron yoke is provided with center pillar, the two ends up and down of center pillar respectively with the middle part of upper and lower iron yoke overlap joint, on left and right two side columns and a center pillar, be equiped with whole winding respectively, whole winding nexine is provided with low-voltage coil, outer suit high-tension coil at low-voltage coil, be respectively arranged with upper and lower folder on the two sides, front and back of upper and lower iron yoke and use bolt, described low-voltage coil adopts the Copper Foil coiling, and interlayer uses the material of DMD resin prepreg stain as layer insulation; Described high-tension coil coil arrangement is at the skin of low-voltage coil, is equiped with the soft type grid cloth of one deck as insulating material between adjacent two-layer of high pressure winding, is provided with solvent-free grid material as external insulation at the peripheral equipment of high-tension coil.
This built-in transformer of wind power tower barrel that the present invention provides is selected quality material for use, make the greasy property of interlayer grid cloth obtain tremendous increase, eliminate to greatest extent and reduced the cast space, thereby strengthened the dielectric strength of interlayer, the possibility of partial discharge is obviously reduced.Core material utilizes the cold rolling silicon steel sheet of high-quality, reduce the magnetic hysteresis consumption of transformer, adopted solvent-free grid peripheral material that the electric discharge phenomena of polar substances and the ability of stored charge are decreased, thereby guaranteed the present invention can be in high-tension power frequency electric field safe and reliable operation, reduced the interference of noise greatly.
The present invention can cancel overhang insulation and other similar insulating material, and then guarantee the consistency of integral medium owing to adopted solvent-free grid peripheral material and trapezoidal coil structure, makes electric field even.
Low-voltage coil of the present invention adopts foil coil, and high-tension coil adopts multi-layer cylinder formula coil, with carrying out poured with epoxy resin around the back roman; During poured with epoxy resin dry-type transformer structural design, select for use epoxy resin as solid insulation, this insulation technology does not have oiling, the difficult environmental protection characteristic that fires fire prevention, is easy to reclaim when itself having given the transformer operation; Vacuum casting technique has been avoided producing bubble in the coil, and reduction office puts, and improves life of product; The whole glass fibre of coil is strengthened, and the integrated casting moulding has improved the anti-sudden short circuit ability of product greatly; The hermetically-sealed construction of coil makes that the present invention possesses protection against the tide, puts into operation at any time, resistant, characteristics such as non-maintaining.
Compared with prior art, beneficial effect of the present invention is: reasonable in design, design is original, outside the advantage and technical performance that have kept like product, also have following characteristics:
(1) power is big, volume is little, installation only needs less space;
Give necessary consideration to transformer contingent various potential safety hazards in service when (2) designing and taked the detection of corresponding techniques assurance and fire to test, can fire-retardantly put out safety measure that needn't be special certainly;
(3) adopt new material and unique loop construction and fine-processing technique in the making, guaranteed the consistency of integral medium, security of operation, stable, reliable, the life-span is long, non-maintaining, operating cost is low;
(4) belong to closed system, can be installed in place, thereby reduce line loss (the feed radius is little) near generating or power consumption equipment.
(5) environment is not produced pollution, do not have danger flammable or that pollutant leaks,, be highly suitable for humidity and contaminated environment even under the situation of breaking out of fire or generation electric arc, do not have hazardous gas yet and discharge;
(6) overload capacity is strong, partial discharge quantity is little, have anti-short circuit capability efficiently;
(7) loss is low, efficient is high, temperature characterisitic is strong, mechanical performance is high, anti-sudden short circuit ability is strong, install convenient, need not the debugging.
Description of drawings
The structural representation of the embodiment that accompanying drawing provides for the present invention.
Embodiment
Below in conjunction with embodiment concrete technical scheme of the present invention is described further:
Mark among the figure: 1. upper yoke, 2. lower yoke, 3. left side post, 4. the right post, 5. center pillar, 6. whole winding, 7. upper clamping piece, 8. lower clamping piece, 9. housing, 10. diaphragm plate, 11. elbow type cable termination connector, 12. low-pressure chambers, 13. midfeather teams, 14. hyperbaric chambers, 15. transformer rooms.
As shown in the figure, this built-in transformer of wind power tower barrel comprises low pressure winding, high pressure winding, iron core, upper clamping piece, lower clamping piece, wherein iron core is provided with that left end is provided with left side post 3 between upper yoke 1, lower yoke 2, upper yoke 1 and the lower yoke 2, the two ends up and down of left side post 3 respectively with the left end overlap joint of upper yoke 1 and lower yoke 2; The right-hand member of upper yoke 1 and lower yoke 2 is provided with the right post 4, the two ends up and down of the right post 4 respectively with the right-hand member of upper yoke 1 and lower yoke 2 overlap joint; The middle part of upper yoke 1 and lower yoke 2 is provided with center pillar 5, the two ends up and down of center pillar 5 respectively with the middle part of upper yoke 1 and lower yoke 2 overlap joint.Wherein whole winding 6 is set with left side post 3, the right post 4, reaches on the center pillar 5, the internal layer of whole winding 6 is provided with low pressure winding 9, skin at low pressure winding 9 is provided with full-insulating high-voltage winding 10, be respectively arranged with two upper clamping pieces 7 and two lower clamping pieces 8 on the two sides, front and back of upper yoke 1 and lower yoke 2, and fixing with the screw rod chucking.
Low-voltage coil 9 adopts the Copper Foil coiling, and the insulating material that interlayer is provided with one deck DMD resin prepreg insulate.Full-insulating high-voltage coil 10 adopts on the low-voltage coil 9 of coiling moulding with the winding technologe coiling, high pressure winding 10 is selected high-quality oxygen-free copper electromagnetic wire for use, adopt cylinder mode to carry out coiling, interlayer installing one deck soft type grid cloth of high pressure winding 10 is as insulating material, its grid specification is 2X4mm, is provided with solvent-free grid material at the peripheral equipment of high pressure winding 10.
To put into baker after whole winding 6 moulding solidifies, then whole winding 6 is placed in the preheating furnace up to reach 150 ℃ pouring temperature, the whole winding 6 that preheating is good is transplanted on the vacuum pouring chamber, when the vacuum degree of vacuum casting room reaches the setting of 50～100pa, with resin-cast in the mould of whole winding 6.The resin viscosity that mixes is lower, can fill slight void, and combine together with soft type grid cloth and solvent-free grid material and resin extender, form fine and smooth resin bed at outer surface behind the curing molding, thereby reach minimum local discharging level, have the transformer coil of extremely strong anti-short circuit capability.
For adapting to tower tube environment, except that transformer had protection against the tide, dustproof sealing property, the connection lead-in wire of transformer high and low pressure unit and joint were all used tightening tube (band) sealing, and no lead is exposed; And transformer station and extraneous binding post cancel sleeve pipe to connect and the elbow type cable termination connector 11 of employing superior performance without exception, i.e. sealing is quick again reliable.
In the present invention, iron core is through well-designed, adopts the high magnetic conduction silicon steel sheet of 30ZH120 grain orientation of magnetic hysteresis stroke minimum to shear on full-automatic shearing equipment, guarantees its shear precision.Simultaneously, core structure adopts monolithic, four steppings, vertical ladder lamination mode automatic overlapping and assembling, thereby guarantees the required precision of monolithic closed assembly.For guaranteeing iron core global stiffness and intensity, adopt novelly every magnet steel arm-tie, steel drawstring structure, iron core adopts and vertically to draw screw rod and other card screw rod, can tighten core lamination stack effectively, make iron core become stable rigid body, can compress winding again, bear the load-carrying of device body handling.All bolt fastener adopts anti-loose structures such as disk spring simultaneously, and the system of assurance has constant thrust.Iron core adopts the synchronous stepping overlapping mode of full bias seam, can guarantee the optimum performance of iron core and minimum noise.
Claims (1)
1. a built-in transformer of wind power tower barrel comprises low pressure winding, high pressure winding, iron core, upper clamping piece, lower clamping piece, it is characterized in that
Iron core is provided with upper and lower iron yoke, be provided with left side post between the left end of upper and lower iron yoke, the upper/lower terminal of left side post respectively with the left end of upper and lower iron yoke overlap joint, be provided with the right post between the right-hand member of upper and lower iron yoke, the upper/lower terminal of the right post respectively with the right-hand member of upper and lower iron yoke overlap joint, the middle part of upper and lower iron yoke is provided with center pillar, the two ends up and down of center pillar respectively with the middle part of upper and lower iron yoke overlap joint;
Be equiped with whole winding respectively on left and right two side columns and a center pillar, whole winding nexine is provided with low-voltage coil, at the outer suit high-tension coil of low-voltage coil, is respectively arranged with upper and lower folder on the two sides, front and back of upper and lower iron yoke and uses bolt;
Described low-voltage coil adopts the Copper Foil coiling, and interlayer uses the material of DMD resin prepreg stain as layer insulation;
Described high-tension coil coil arrangement is at the skin of low-voltage coil, is equiped with the soft type grid cloth of one deck as insulating material between adjacent two-layer of high pressure winding, is provided with solvent-free grid material as external insulation at the peripheral equipment of high-tension coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810228936A CN101740202A (en) | 2008-11-21 | 2008-11-21 | Built-in transformer of wind power tower barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810228936A CN101740202A (en) | 2008-11-21 | 2008-11-21 | Built-in transformer of wind power tower barrel |
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| Publication Number | Publication Date |
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| CN101740202A true CN101740202A (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810228936A Pending CN101740202A (en) | 2008-11-21 | 2008-11-21 | Built-in transformer of wind power tower barrel |
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| CN (1) | CN101740202A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290221A (en) * | 2010-06-18 | 2011-12-21 | 沈阳中科天道新能源装备股份有限公司 | Variable-pitch power supply box |
| CN102979682A (en) * | 2011-09-02 | 2013-03-20 | 西门子公司 | Wind turbine, transformer chamber for a wind turbine, wind turbine structure component, and method for assembling a wind turbine |
| CN103077808A (en) * | 2013-02-01 | 2013-05-01 | 明珠电气有限公司 | Class-1E dry transformer for nuclear power plant |
| CN105097251A (en) * | 2015-07-23 | 2015-11-25 | 山东华尚电气有限公司 | Built-in tower drum type transformer for offshore wind power |
| CN114220640A (en) * | 2021-11-09 | 2022-03-22 | 上海置信电气非晶有限公司 | Low-voltage coil for dry-type transformer |
-
2008
- 2008-11-21 CN CN200810228936A patent/CN101740202A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290221A (en) * | 2010-06-18 | 2011-12-21 | 沈阳中科天道新能源装备股份有限公司 | Variable-pitch power supply box |
| CN102979682A (en) * | 2011-09-02 | 2013-03-20 | 西门子公司 | Wind turbine, transformer chamber for a wind turbine, wind turbine structure component, and method for assembling a wind turbine |
| US9514874B2 (en) | 2011-09-02 | 2016-12-06 | Siemens Aktiengesellschaft | Transformer chamber for a wind turbine |
| CN103077808A (en) * | 2013-02-01 | 2013-05-01 | 明珠电气有限公司 | Class-1E dry transformer for nuclear power plant |
| CN105097251A (en) * | 2015-07-23 | 2015-11-25 | 山东华尚电气有限公司 | Built-in tower drum type transformer for offshore wind power |
| CN114220640A (en) * | 2021-11-09 | 2022-03-22 | 上海置信电气非晶有限公司 | Low-voltage coil for dry-type transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: FAN JIKANG |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20101020 Address after: 110108 70 Qing Chau Street, Sujiatun District, Liaoning, Shenyang Applicant after: Shenyang Fulinte Special Transformer Co., Ltd. Address before: 110108 70 Qing Chau Street, Sujiatun District, Liaoning, Shenyang Applicant before: Shenyang Fulinte Special Transformer Co., Ltd. Co-applicant before: Fan Jikang |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100616 |