CN202307460U - High-capacity heavy-current dry-type transformer for polysilicon electric furnace - Google Patents
High-capacity heavy-current dry-type transformer for polysilicon electric furnace Download PDFInfo
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- CN202307460U CN202307460U CN2011203901213U CN201120390121U CN202307460U CN 202307460 U CN202307460 U CN 202307460U CN 2011203901213 U CN2011203901213 U CN 2011203901213U CN 201120390121 U CN201120390121 U CN 201120390121U CN 202307460 U CN202307460 U CN 202307460U
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Abstract
The utility model relates to a high-capacity heavy-current dry-type transformer for a polysilicon electric furnace. The transformer comprises an iron core, three high-tension coils and three low-tension coils, wherein the low-tension coils are fixed on the iron core and the high-tension coils are sleeved outside the low-tension coils so as to form three phases; leading-out copper bars on the low-tension coils are connected with an insulated terminal, and the low-tension coils are provided with two groups of leading-out copper bars which are asymmetrically arranged; windings in the low-tension coils are wound by adopting double-layer copper foils, and insulating layers are arranged between two layers of copper foils which are in the same turn in the low-tension coils; the voltage arrangement sequence of the low-tension coils is as follows: the inside voltage is the highest, and the exterior voltages are gradually reduced; and each leading-out copper bar consists of an upper copper bar and a lower copper bar which are arranged up and down, the lower part of each lower copper bar is connected with the low-tension coils, the upper part of each lower copper bar upward and outward bends, each upper copper bar is of a right angle shape, a transverse section of each upper copper bar is connected with the lower copper bars, and the vertical section of each upper copper bar is connected with the insulated terminal. The high-capacity heavy-current dry-type transformer provided by the utility model can meet operation requirements of 40 pairs of polysilicon electric furnace, has the characteristics that production and installation are easy, volume is small, and the temperature rising of the transformer is easy to control.
Description
Technical field
The utility model relates to a kind of big capacity polysilicon electric furnace and uses dry-type transformer, relates in particular to many grades of pressure regulation dry-type transformers of low pressure of a kind of big capacity, big electric current.
Background technology
In the production of polysilicon, manufacturing enterprise's multiple muffle furnace often produces polysilicon, and dry-type transformer and switchgear house that this just needs same quantity cause that investment repeated construction financial need is big, floor space is big.Needs along with " technological progress; energy-saving and cost-reducing " of manufacturing enterprise; The capacity of separate unit stove increases gradually, develops into 40 pairs of present silicon rods now by 24 pairs of silicon rods of initial separate unit reduction furnace configuration, 36 pairs of silicon rods, the separate unit stove supporting transformer capacity also constantly increase.Be increased to present 10000kVA by initial 3300kVA, 6600kVA, need for this reason at the polysilicon dry-type transformer that is equipped with big capacity, big electric current.In addition, because the increase of transformer capacity, the excellent stove of this 40 couple is originally as unsymmetric structure simultaneously; Make transformer self three-phase imbalance move; After transformer capacity increased to a certain degree, how the difficult point of this transformer by realizing product, becomes the how temperature rise of control transformer.The electric current that the low-pressure side minimum voltage is drawn row is very big, and this draws ranking in coil inside usually, and this big electric current can bring great supplementary load loss during the transformer operation, makes the transformer temperature rise restive.This product since low pressure to draw row many especially, if adopt common continuous row from top to bottom to draw, the far ultra equipment coiling of the radial size of coil radius brings difficulty for production and installation.
Summary of the invention:
The purpose of the utility model is in order to solve the problems of the technologies described above, and the big capacity that a kind of ability satisfies 40 pairs of silicon rod polysilicon electric furnace operation needs, the dry-type transformer of big electric current are provided, and has and be prone to produce installation, and volume is little, is easy to the characteristics of control transformer temperature rise.
For realizing above-mentioned purpose, the technical scheme of the utility model is: a kind of polysilicon electric furnace includes iron core, high-tension coil, low-voltage coil with big capacity, big electric current dry-type transformer; High-tension coil and low-voltage coil respectively are three; Low-voltage coil is fixed on the iron core, and high-tension coil is sleeved on the outside of low-voltage coil, forms three-phase; The copper bar of drawing on the low-voltage coil is connected with insulated terminal, and low-voltage coil is provided with two groups of left and right sides interlaced arrangement and draws copper bar; The interlayer of low-voltage coil winding adopts double-deck copper foil structure, is provided with insulating barrier between the two-layer Copper Foil with circle in the low-voltage coil.
The voltage of low-voltage coil puts in order to inboard voltage is the highest, and external voltage reduces gradually, and outermost is zero, and zero-emission is drawn by coil top.
The described copper bar of drawing is made up of last copper bar that is provided with up and down and following copper bar, and the bottom of following copper bar is connected with low-voltage coil, and its top is upwards also outwardly-bent, the rectangular shape of last copper bar, and its crosspiece is connected with following copper bar, and its perpendicular section is connected with insulated terminal.
The winding of the low-voltage coil of the utility model adopts double-deck Copper Foil coiling; And between two-layer Copper Foil, be provided with insulating barrier with circle; This structure can make two to draw the electric independence of formation between the copper bar, has realized that a transformer can be to the power reguirements of 40 pairs of big capacity of excellent power consumption equipment, big electric current;
Aspect product temperature rise and loss control; The utility model is broken through conventional in the past polysilicon and is used product structure; The voltage of low-voltage coil put in order put upside down, promptly the inboard voltage of coil is the highest, and external voltage reduces gradually; Outermost is zero, simultaneously the zero-emission in past is drawn to change to by coil top by coil bottom and draws.This structure makes the row of drawing of big electric current away from iron core, reduces big electric current greatly and produces and bring supplementary load loss, and coil outside voltage is low simultaneously, and electric current is big, and temperature rise is placed the skin with coil with the part of temperature rise, has increased area of dissipation, is beneficial to the reduction temperature rise; The utility model also is arranged to two parts up and down with copper bar, and adopts right-angle bending structure and left and right sides interlaced arrangement, prevents the interference when copper bar is drawn and is beneficial to the copper bar self-radiating, can reduce small product size like this, is beneficial to the manufacturing and the installation of product.
Description of drawings
Fig. 1 is the utility model sketch map.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the low-voltage coil sketch map.
Embodiment
Accompanying drawing is an embodiment of the utility model; Include iron core 1, high-tension coil 2, low-voltage coil 3, high-tension coil 2 respectively is three with low-voltage coil 3, and low-voltage coil 3 is fixed on the iron core 1; High-tension coil 2 is sleeved on the outside of low-voltage coil 3; Form one single-phase, three-phase transformer of three single-phase compositions is seen Fig. 3.
The copper bar 6 of drawing on the low-voltage coil 3 is connected with insulated terminal; Low-voltage coil 3 is provided with two groups of interlaced arrangement and draws copper bar 6; Low pressure output has many grades; Every group of low-voltage coil 3 all has the corresponding copper bar 6 of drawing, i.e. each draws the winding of each low pressure output class copper bar 6 and be connected with one, and with the both sides that copper bar 6 is arranged in coil of drawing of two groups of coils.Winding in the low-voltage coil 3 adopts double-deck Copper Foil coiling; The interlayer that is winding is double-deck copper foil structure; Be provided with insulating barrier between the two-layer Copper Foil with circle in the low-voltage coil 3; Make two to draw the electric independence of formation between the copper bar 6, realized that so just a transformer just can be to the power reguirements of 40 pairs of big capacity of excellent power consumption equipment, big electric current.
The voltage of the utility model mesolow coil 3 puts in order to inboard voltage is the highest, and external voltage reduces gradually, and outermost is zero, and zero-emission is drawn by coil top.
The copper bar 6 of drawing in the utility model is made up of last copper bar that is provided with up and down 6 and following copper bar 6, and the bottom of following copper bar 6 is connected with low-voltage coil 3, and its top is upwards also outwardly-bent.Last copper bar 6 rectangular shapes, its crosspiece is connected with following copper bar 6, and its perpendicular section is connected with insulated terminal, and last copper bar 6 passes through bolt with following copper bar 6, leaves enough size surplus, the convenient connection.The utility model can also increase the air flue between the row of drawing; Draw copper bar 6 left and right sides interlaced arrangement with many simultaneously; Drawn by the left side like following first copper bar 6, just top second drawn by the right side, the 3rd copper bar 6 is drawn from the left side again then; And the like copper bar 6 draw successively in the both sides of coil respectively, see Fig. 4.At last through computer simulation analysis and final experiment test temperature rise to satisfy customer requirements.
The utility model can satisfy the big capacity of 40 pairs of silicon rod polysilicon electric furnace operation needs, the dry-type transformer of big electric current, and has the production of being prone to installation, and volume is little, is easy to the characteristics of control transformer temperature rise.
Claims (3)
1. a polysilicon electric furnace is with big capacity, big electric current dry-type transformer; Include iron core (1), high-tension coil (2), low-voltage coil (3); High-tension coil (2) and low-voltage coil (3) respectively are three, and low-voltage coil (3) is fixed on the iron core (1), and high-tension coil (2) is sleeved on the outside of low-voltage coil (3); Form three-phase, the copper bar (4) of drawing on the low-voltage coil (3) is connected with insulated terminal; It is characterized in that: low-voltage coil (3) is provided with two groups of left and right sides interlaced arrangement and draws copper bar (4); The interlayer of low-voltage coil (3) winding is double-deck copper foil structure, is provided with insulating barrier between the two-layer Copper Foil with circle in the low-voltage coil (3).
2. polysilicon electric furnace according to claim 1 is with big capacity, big electric current dry-type transformer, and it is characterized in that: the voltage of low-voltage coil (3) puts in order to inboard voltage is the highest, and external voltage reduces gradually, and outermost is zero, and zero-emission is drawn by coil top.
3. polysilicon electric furnace according to claim 1 is with big capacity, big electric current dry-type transformer; It is characterized in that: the described copper bar (4) of drawing is made up of last copper bar that is provided with up and down and following copper bar; The bottom of following copper bar is connected with low-voltage coil (3), and its top is upwards also outwardly-bent, the described rectangular shape of copper bar of going up; Its crosspiece is connected with following copper bar, and its perpendicular section is connected with insulated terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203901213U CN202307460U (en) | 2011-10-14 | 2011-10-14 | High-capacity heavy-current dry-type transformer for polysilicon electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203901213U CN202307460U (en) | 2011-10-14 | 2011-10-14 | High-capacity heavy-current dry-type transformer for polysilicon electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202307460U true CN202307460U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203901213U Expired - Fee Related CN202307460U (en) | 2011-10-14 | 2011-10-14 | High-capacity heavy-current dry-type transformer for polysilicon electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202307460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335871A (en) * | 2017-12-29 | 2018-07-27 | 金盘电气集团（上海）有限公司 | A kind of multi output furnace transformer |
-
2011
- 2011-10-14 CN CN2011203901213U patent/CN202307460U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335871A (en) * | 2017-12-29 | 2018-07-27 | 金盘电气集团（上海）有限公司 | A kind of multi output furnace transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20171014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |