CN2909769Y - Power supply device of industrial silicon furnace - Google Patents
Power supply device of industrial silicon furnace Download PDFInfo
- Publication number
- CN2909769Y CN2909769Y CNU200620090099XU CN200620090099U CN2909769Y CN 2909769 Y CN2909769 Y CN 2909769Y CN U200620090099X U CNU200620090099X U CN U200620090099XU CN 200620090099 U CN200620090099 U CN 200620090099U CN 2909769 Y CN2909769 Y CN 2909769Y
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- CN
- China
- Prior art keywords
- industrial silicon
- power supply
- short net
- power
- transformer
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model discloses a power supply device, in particular to a power supply device for industrial silicon furnaces, which is conducive to increasing the efficiency of the industrial silicon furnace and decreasing the power consumption. The device includes a high-voltage switchboard (1), a transformer (2), a short net (4) and electrodes (5). Wherein, a variable frequency device is installed between the transformer (2) and the short net (4); and the variable frequency device is a low-frequency power device (3). Due to reactance decrease, reactance decrease of the short net, power factor increase and reduction of heat loss of the steel components around the magnetic field, the utility model can improve the efficiency of the furnace. Meanwhile, reactive component is less while active component is more; the power factor can be up to more than 0.92 without any additional power factor compensation device, thus saving investment.
Description
Technical field
The utility model relates to a kind of electric supply installation, relates in particular to a kind of industrial silicon furnace electric supply installation of improving industrial silicon furnace efficient, cutting down the consumption of energy of helping.
Background technology
China's industrial silicon furnace all adopts the power frequency supply power mode at present, and its circuit is a dynamic load circuit, is made of transformer secondary winding, short net, electrode and molten bath.Its short-and-medium net is pith in this circuit, and the ratio that its reactance and resistance account for the reactance of entire circuit and resistance is very big, accounts for 75%-85%, and the power factor and the electrical efficiency of electric furnace had material impact.
In order to reduce the reactance of weak point net, people have taked a lot of measures in short net design, as reduce short net length, selection suitable material, the short net of reasonable Arrangement etc.
Although taked many measures, we can say and closely attain perfectly from the design aspect of short net that short network loss is still up to about 8%.For this reason, we state this traceability consideration and seek a kind of solution from the power supply of industrial silicon furnace.
The utility model content
The utility model is exactly the electric supply installation that a kind of industrial silicon furnace is provided in order to solve the problems of the technologies described above, and purpose is in order to reduce reactance, increases effective power, thus improve industrial silicon furnace efficient, cut down the consumption of energy.
In order to solve the problems of the technologies described above, the utility model is achieved in that a kind of electric supply installation of industrial silicon furnace, and it comprises high-tension switch cabinet, transformer, short net and electrode, wherein installs converter plant additional between transformer and short net.
Described converter plant is a low frequency power supply system.
Described low frequency power supply system is that the power frequency supply with former 50HZ becomes the low-frequency power cabinet that low frequency 0.01～12.5HZ can regulate.
The utility model is to adopt the low-frequency power technology, promptly installs converter plant additional reducing supply frequency before transformer, and the power frequency supply of former 50HZ is become the low-frequency power that low frequency 0.01～12.5HZ can regulate.We know according to electrical theory: (L ± M), wherein: f is a supply frequency to short net reactance X=2 π f, and L is short net coefficient of self-inductance, and M is short net coefficient of mutual inductance.As seen reducing supply frequency can make the reactance value of current circuit system descend.The utility model adopts the low-frequency power technology promptly to be based on this starting point, utilizes the power electronics converter technique that stove power supply frequency is reduced to 0.05～12.5HZ from 50HZ, and its reactance and relative loss factor reduce by 1/4～1/1000, and effect is fairly obvious.
Advantage of the present utility model and effect are:
Because reactance descends, short net reactance reduces, and power factor improves, and steel member heat producing losses reduces around the magnetic field, and furnace efficiency is improved.Idle component reduces simultaneously, meritorious increasing, and power factor can reach more than 0.92, need not the secondary power factor compensation device, has saved investment.
In addition, can utilize the controllable characteristics of thyristor, regulate input voltage automatically.Electrode is stabilized on the optimum position, keeps best and insert deeply, this point is extremely important to the control furnace bottom rising.
The amplitude that stirs along with low frequency electromagnetic strengthens simultaneously, and it is strong that the interior melt of furnace hearth is stirred, and temperature rise is fast, thereby can shorten smelting time.
Below in conjunction with the drawings and specific embodiments the utility model is described in further details.
Description of drawings
Fig. 1 is the structural representation of the electric supply installation of the utility model industrial silicon furnace.
1. high-tension switch cabinets among the figure; 2. transformer; 3. low frequency power supply system; 4. lack net; 5. electrode; 6. body of heater.
Embodiment
As shown in Figure 1, the electric supply installation structure of the utility model industrial silicon furnace is as follows: high-tension switch cabinet 1, the transformer 2 that is connected with high-tension switch cabinet 1, an other end and the converter plant of transformer 2 is that low frequency power supply system 3 is connected, low frequency power supply system 3 is connected with electrode 5 by short net 4, short net 4 is a copper bar, and electrode 5 is inserted in the molten bath of body of heater 6.Wherein low frequency power supply system 3 is that power frequency supply with former 50HZ becomes the low-frequency power cabinet that low frequency 0.01～12.5HZ can regulate.
Claims (3)
1, a kind of electric supply installation of industrial silicon furnace, it comprises high-tension switch cabinet (1), transformer (2), short net (4) and electrode (5), it is characterized in that installing converter plant additional between transformer (2) and short net (4).
2, the electric supply installation of industrial silicon furnace according to claim 1 is characterized in that described converter plant is low frequency power supply system (3).
3, the electric supply installation of industrial silicon furnace according to claim 2 is characterized in that described low frequency power supply system (3) is that power frequency supply with former 50HZ becomes the low-frequency power cabinet that low frequency 0.01～12.5HZ can regulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620090099XU CN2909769Y (en) | 2006-03-31 | 2006-03-31 | Power supply device of industrial silicon furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620090099XU CN2909769Y (en) | 2006-03-31 | 2006-03-31 | Power supply device of industrial silicon furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2909769Y true CN2909769Y (en) | 2007-06-06 |
Family
ID=38128978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200620090099XU Expired - Fee Related CN2909769Y (en) | 2006-03-31 | 2006-03-31 | Power supply device of industrial silicon furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2909769Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008006301A1 (en) * | 2006-07-04 | 2008-01-17 | China Aluminum International Engineering Corporation Limited | A power supply device for a high-temperature electric balancer of rotary kiln flue with a waster heat boiler |
| CN101958551A (en) * | 2010-04-09 | 2011-01-26 | 江阴市华能电热器材有限公司 | Power distribution device for improving active power of series electric tracer heating system |
-
2006
- 2006-03-31 CN CNU200620090099XU patent/CN2909769Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008006301A1 (en) * | 2006-07-04 | 2008-01-17 | China Aluminum International Engineering Corporation Limited | A power supply device for a high-temperature electric balancer of rotary kiln flue with a waster heat boiler |
| CN101958551A (en) * | 2010-04-09 | 2011-01-26 | 江阴市华能电热器材有限公司 | Power distribution device for improving active power of series electric tracer heating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070606 Termination date: 20110331 |