CN201717800U - Power supply device for ultra-large power silicon carbide smelting furnace and silicon carbide smelting device - Google Patents
Power supply device for ultra-large power silicon carbide smelting furnace and silicon carbide smelting device Download PDFInfo
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- CN201717800U CN201717800U CN2010202247307U CN201020224730U CN201717800U CN 201717800 U CN201717800 U CN 201717800U CN 2010202247307 U CN2010202247307 U CN 2010202247307U CN 201020224730 U CN201020224730 U CN 201020224730U CN 201717800 U CN201717800 U CN 201717800U
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- smelting
- silicon carbide
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model relates to a power supply device for an ultra-large power silicon carbide smelting furnace, comprising a first smelting transformer, a first rectifier cabinet, a second smelting transformer, a second rectifier cabinet, a control unit, a first switch, a second switch and a third switch, wherein the first smelting transformer is electrically connected with the first rectifier cabinet which is further electrically connected with the first switch, the second switch and the silicon carbide smelting furnace; the second smelting transformer is electrically connected with the second rectifier cabinet which is further electrically connected with the first switch, the third switch and the silicon carbide smelting furnace; the control unit is respectively and electrically connected with the first switch, the second switch and the third switch; and the control unit is used for controlling the switching on of the first switch as well as the switching off of the second switch and the third switch so as to enable the first rectifier cabinet to be connected with the second rectifier cabinet in series, and the control unit is also used for controlling the switching off of the first switch as well as the switching on of the second switch and the third switch so as to enable the first rectifier cabinet to be connected with the second rectifier cabinet in parallel. The utility model further provides a silicon carbide smelting device.
Description
Technical field:
The utility model relates to the carborundum technical field of smelting, and particularly a kind of super-power silicon carbide smelting furnace is with electric supply installation and silicon carbide smelting device.
Background technology:
Existing silicon carbide smelting device comprises electric supply installation and sic smelting furnace.Wherein, electric supply installation comprises smelting transformer and rectifier cabinet.The alternating current that smelting transformer is used for high-voltage fence is provided carries out step-down, to obtain to have the alternating current of scheduled voltage; Alternating current after the step-down that rectifier cabinet is used for smelting transformer is provided converts to and is fit to the direct current that sic smelting furnace is used, and direct current is offered sic smelting furnace; Sic smelting furnace utilizes direct current that the mixture of being made up of quartz sand and anthracite is smelted, to obtain carborundum.
Yet, the active power that the electric energy that existing electric supply installation provides high-voltage fence is converted into the heat energy that is used for silicon carbide smelting is lower, and the smelting transformer in the existing electric supply installation is prone to the overload phenomenon because of the resistance variations influence that is subjected to sic smelting furnace, and then causes smelting transformer to be burnt.
Summary of the invention:
In view of this, be necessary to provide a kind of super-power silicon carbide smelting furnace electric supply installation that improves active power and can avoid the smelting transformer overload.
Also be necessary to provide a kind of silicon carbide smelting device that adopts super-power silicon carbide smelting furnace with electric supply installation.
A kind of super-power silicon carbide smelting furnace electric supply installation comprises first smelting transformer, first rectifier cabinet, second smelting transformer, second rectifier cabinet, control unit, first switch, second switch and the 3rd switch.First smelting transformer and first rectifier cabinet electrically connect, and first rectifier cabinet also electrically connects with first switch, second switch and super-power silicon carbide smelting furnace.Second smelting transformer and second rectifier cabinet electrically connect, and second rectifier cabinet also electrically connects with first switch, the 3rd switch and super-power silicon carbide smelting furnace.Control unit electrically connects with first switch, second switch and the 3rd switch respectively.The alternating current that first smelting transformer and second smelting transformer are used for high-voltage fence is provided carries out step-down, to obtain to have the alternating current of scheduled voltage.First rectifier cabinet and second rectifier cabinet are used for alternating current after the corresponding step-down that first smelting transformer and second smelting transformer are provided and convert to and be fit to the direct current that sic smelting furnace is used.Control unit is used to control first switch conduction and control second switch and the 3rd switch and disconnects, so that first rectifier cabinet is connected with second rectifier cabinet; Control unit also is used to control the disconnection of first switch and control second switch and the 3rd switch conduction, so that first rectifier cabinet is in parallel with second rectifier cabinet.
Preferably, control unit is provided with series connection control button, Parallel Control button, and when the series connection control button was pressed, the series connection control button produced first control signal; When the Parallel Control button was pressed, the Parallel Control button produced second control signal; Control unit is detecting first control signal of generation, second control signal, the disconnection and the conducting of corresponding control first switch, second switch and the 3rd switch.
Preferably, the bus of first rectifier cabinet, second rectifier cabinet and sic smelting furnace electric connection employing is that specification is 30 * 350 millimeters fine aluminium conductive bus bars.
Preferably, it is that 30000 kilowatts of diodes are made rectifier cell that first rectifier cabinet, second rectifier cabinet adopt power, and the rectifier system that first rectifier cabinet, second rectifier cabinet adopt is 12 pulse wave rectifier modes.
A kind of silicon carbide smelting device, comprise super-power silicon carbide smelting furnace with electric supply installation and sic smelting furnace, this super-power silicon carbide smelting furnace comprises first smelting transformer, first rectifier cabinet, second smelting transformer, second rectifier cabinet, control unit, first switch, second switch and the 3rd switch with electric supply installation.First smelting transformer and first rectifier cabinet electrically connect, and first rectifier cabinet also electrically connects with first switch, second switch and super-power silicon carbide smelting furnace.Second smelting transformer and second rectifier cabinet electrically connect, and second rectifier cabinet also electrically connects with first switch, the 3rd switch and super-power silicon carbide smelting furnace.Control unit electrically connects with first switch, second switch and the 3rd switch respectively.The alternating current that first smelting transformer and second smelting transformer are used for high-voltage fence is provided carries out step-down, to obtain to have the alternating current of scheduled voltage.First rectifier cabinet and second rectifier cabinet are used for alternating current after the corresponding step-down that first smelting transformer and second smelting transformer are provided and convert to and be fit to the direct current that sic smelting furnace is used.Control unit is used to control first switch conduction and control second switch and the 3rd switch and disconnects, so that first rectifier cabinet is connected with second rectifier cabinet; Control unit also is used to control the disconnection of first switch and control second switch and the 3rd switch conduction, so that first rectifier cabinet is in parallel with second rectifier cabinet.
The alternating current that utilizes above-mentioned super-power silicon carbide smelting furnace with electric supply installation high-voltage fence to be provided is converted in the direct current process of sic smelting furnace needs, controlling first switch conduction and control second switch and the 3rd switch by control unit disconnects, so that first rectifier cabinet is connected with second rectifier cabinet, and control first switch disconnects and control second switch and the 3rd switch conduction, so that first rectifier cabinet is in parallel with second rectifier cabinet, realize first smelting transformer, first rectifier cabinet and second smelting transformer, the connection in series-parallel exchange of second rectifier cabinet, to change alternating current voltage and current and phase difference, and then improve the power factor of super-power silicon carbide smelting furnace with electric supply installation, so increase the active power of super-power silicon carbide smelting furnace with electric supply installation.Simultaneously, because of the resistance variations of sic smelting furnace the time, can carry out series-parallel exchange by controlling between first smelting transformer, first rectifier cabinet and second smelting transformer, second rectifier cabinet, prevent that the overload phenomenon from appearring in first smelting transformer, second smelting transformer.
Description of drawings:
Fig. 1 is the silicon carbide smelting device high-level schematic functional block diagram of a better embodiment
Fig. 2 is a silicon carbide smelting device circuit theory schematic diagram among Fig. 1
Among the figure: silicon carbide smelting device 10, super-power silicon carbide smelting furnace electric supply installation 20, first smelting transformer 21, first rectifier cabinet 23, second smelting transformer 22, second rectifier cabinet 24, first switch 25, second switch 26 and the 3rd switch 27, control unit 28, sic smelting furnace 30
Embodiment:
As shown in Figure 1, silicon carbide smelting device 10 comprises super-power silicon carbide smelting furnace electric supply installation 20 and sic smelting furnace 30.
Super-power silicon carbide smelting furnace comprises first smelting transformer 21, first rectifier cabinet 23, second smelting transformer 22, second rectifier cabinet 24, control unit 28, first switch 25, second switch 26 and the 3rd switch 27 with electric supply installation 20.In the present embodiment, the rated capacity of first smelting transformer 21, second smelting transformer 22 is identical, the rated capacity of first smelting transformer 21, second smelting transformer 22 is that 15800 kilovolt-amperes, primary side are 35 kilovolts, 41 grades on-load voltage regulation, and the mode of connection of first smelting transformer 21, second smelting transformer 22 is the three-phase bridge cophase counter parallel connection; It is that 30000 kilowatts of diodes are made rectifier cell that first rectifier cabinet 23, second rectifier cabinet 24 adopt power, the rectifier system that first rectifier cabinet 23, second rectifier cabinet 24 adopt is 12 pulse wave rectifier modes, and the rated direct voltage of first rectifier cabinet 23, second rectifier cabinet 24 is that 830 volts, rated direct current are 40 kilo-amperes; First switch 25, second switch 26 and the 3rd switch 27 are dc bus formula knife switch.
First smelting transformer 21 and first rectifier cabinet 23 electrically connect, and first rectifier cabinet 23 also electrically connects with first switch 25, second switch 26 and sic smelting furnace 30.Second smelting transformer 22 and second rectifier cabinet 24 electrically connect, and second rectifier cabinet 24 also electrically connects with first switch 25, the 3rd switch 27 and sic smelting furnace 30.In the present embodiment, it is that specification is 30 * 350 millimeters fine aluminium conductive bus bars that first rectifier cabinet 23, second rectifier cabinet 24 electrically connect the bus that adopts with sic smelting furnace 30, and first rectifier cabinet 23, second rectifier cabinet 24 adopt inferior arc-welding and copper-aluminium transition welding with the joint that sic smelting furnace 30 electrically connects.Control unit 28 electrically connects with first switch 25, second switch 26 and the 3rd switch 27 respectively.In the present embodiment, control unit 28 is used to control the conducting and the disconnection of first switch 25, second switch 26 and the 3rd switch 27 and controls first rectifier cabinet 23, second rectifier cabinet 24 for being arranged on the control board in the Control Room; Control unit 28 is provided with series connection control button, Parallel Control button, rectifier cabinet control button etc.
The alternating current that first smelting transformer 21 and second smelting transformer 22 are used for high-voltage fence is provided carries out step-down, to obtain to have the alternating current of scheduled voltage.Scheduled voltage is meant and meets the required magnitude of voltage of silicon carbide smelting.
The alternating current that first rectifier cabinet 23 and second rectifier cabinet 24 are used for after the corresponding step-down that first smelting transformer 21 and second smelting transformer 22 are provided converts the direct current that is fit to sic smelting furnace 30 usefulness to.In the present embodiment, the furnace superintendent of sic smelting furnace 30 is 117 meters, stove is wide is 5.5-6.5 rice.
As shown in Figure 2, it is the circuit theory diagrams of super-power silicon carbide smelting furnace with electric supply installation 20.It is that 30000 kilowatts of diodes are made rectifier cell that first rectifier cabinet 23, second rectifier cabinet 24 adopt power, and first switch, second switch and the 3rd switch adopt dc bus formula knife switch.The corresponding respectively alternating current that high-voltage fence is provided of first smelting transformer 21 and second smelting transformer 22 carries out step-down, to obtain to have the alternating current of scheduled voltage.Alternating current after the step-down that first smelting transformer 21 and second smelting transformer 22 are provided of first rectifier cabinet 23 and second rectifier cabinet, 24 correspondences converts the direct current that is fit to sic smelting furnace 30 usefulness to.When the staff presses the series connection control button, the series connection control button produces first control signal, control unit 28 is controlled 25 conductings of first switch and control second switch 26 and 27 disconnections of the 3rd switch after detecting first control signal, so that first rectifier cabinet 23 adopts series systems to provide corresponding direct current for sic smelting furnace 30 with second rectifier cabinet 24; When the staff presses the Parallel Control button, the Parallel Control button produces second control signal, control first switch 25 disconnected and control second switch 26 and 27 conductings of the 3rd switch after control unit 28 detected second control signal, so that first rectifier cabinet 23 adopts parallel way to provide corresponding direct current for sic smelting furnace 30 with second rectifier cabinet 24.
Claims (8)
1. super-power silicon carbide smelting furnace electric supply installation, comprise first smelting transformer, first rectifier cabinet, second smelting transformer, second rectifier cabinet, the alternating current that first smelting transformer and second smelting transformer are used for high-voltage fence is provided carries out step-down, to obtain to have the alternating current of scheduled voltage; First rectifier cabinet and second rectifier cabinet are used for alternating current after the corresponding step-down that first smelting transformer and second smelting transformer are provided and convert to and be fit to the direct current that sic smelting furnace is used;
It is characterized in that: this super-power silicon carbide smelting furnace also comprises control unit, first switch, second switch and the 3rd switch with electric supply installation; First smelting transformer and first rectifier cabinet electrically connect, and first rectifier cabinet also electrically connects with first switch, second switch and super-power silicon carbide smelting furnace; Second smelting transformer and second rectifier cabinet electrically connect, and second rectifier cabinet also electrically connects with first switch, the 3rd switch and super-power silicon carbide smelting furnace; Control unit electrically connects with first switch, second switch and the 3rd switch respectively; Control unit is used to control first switch conduction and control second switch and the 3rd switch and disconnects, so that first rectifier cabinet is connected with second rectifier cabinet; Control unit also is used to control the disconnection of first switch and control second switch and the 3rd switch conduction, so that first rectifier cabinet is in parallel with second rectifier cabinet.
2. super-power silicon carbide smelting furnace electric supply installation according to claim 1 is characterized in that: control unit is provided with series connection control button, Parallel Control button, and when the series connection control button was pressed, the series connection control button produced first control signal; When the Parallel Control button was pressed, the Parallel Control button produced second control signal; Control unit is detecting first control signal of generation, second control signal, the disconnection and the conducting of corresponding control first switch, second switch and the 3rd switch.
3. super-power silicon carbide smelting furnace electric supply installation according to claim 1 is characterized in that: it is that specification is 30 * 350 millimeters fine aluminium conductive bus bars that first rectifier cabinet, second rectifier cabinet and sic smelting furnace electrically connect the bus that adopts.
4. super-power silicon carbide smelting furnace electric supply installation according to claim 1, it is characterized in that: it is that 30000 kilowatts of diodes are made rectifier cell that first rectifier cabinet, second rectifier cabinet adopt power, and the rectifier system that first rectifier cabinet, second rectifier cabinet adopt is 12 pulse wave rectifier modes.
5. silicon carbide smelting device, comprise that super-power silicon carbide smelting furnace is with electric supply installation and sic smelting furnace, this super-power silicon carbide smelting furnace comprises first smelting transformer, first rectifier cabinet, second smelting transformer, second rectifier cabinet with electric supply installation, the alternating current that first smelting transformer and second smelting transformer are used for high-voltage fence is provided carries out step-down, to obtain to have the alternating current of scheduled voltage; First rectifier cabinet and second rectifier cabinet are used for alternating current after the corresponding step-down that first smelting transformer and second smelting transformer are provided and convert to and be fit to the direct current that sic smelting furnace is used;
It is characterized in that: this super-power silicon carbide smelting furnace also comprises control unit, first switch, second switch and the 3rd switch with electric supply installation; First smelting transformer and first rectifier cabinet electrically connect, and first rectifier cabinet also electrically connects with first switch, second switch and super-power silicon carbide smelting furnace; Second smelting transformer and second rectifier cabinet electrically connect, and second rectifier cabinet also electrically connects with first switch, the 3rd switch and super-power silicon carbide smelting furnace; Control unit electrically connects with first switch, second switch and the 3rd switch respectively; Control unit is used to control first switch conduction and control second switch and the 3rd switch and disconnects, so that first rectifier cabinet is connected with second rectifier cabinet; Control unit also is used to control the disconnection of first switch and control second switch and the 3rd switch conduction, so that first rectifier cabinet is in parallel with second rectifier cabinet.
6. silicon carbide smelting device according to claim 5 is characterized in that: control unit is provided with series connection control button, Parallel Control button, and when the series connection control button was pressed, the series connection control button produced first control signal; When the Parallel Control button was pressed, the Parallel Control button produced second control signal; Control unit is detecting first control signal of generation, second control signal, the disconnection and the conducting of corresponding control first switch, second switch and the 3rd switch.
7. silicon carbide smelting device according to claim 5 is characterized in that: it is that specification is 30 * 350 millimeters fine aluminium conductive bus bars that first rectifier cabinet, second rectifier cabinet and sic smelting furnace electrically connect the bus that adopts.
8. silicon carbide smelting device according to claim 5, it is characterized in that: it is that 30000 kilowatts of diodes are made rectifier cell that first rectifier cabinet, second rectifier cabinet adopt power, and the rectifier system that first rectifier cabinet, second rectifier cabinet adopt is 12 pulse wave rectifier modes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202247307U CN201717800U (en) | 2010-06-13 | 2010-06-13 | Power supply device for ultra-large power silicon carbide smelting furnace and silicon carbide smelting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202247307U CN201717800U (en) | 2010-06-13 | 2010-06-13 | Power supply device for ultra-large power silicon carbide smelting furnace and silicon carbide smelting device |
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| Publication Number | Publication Date |
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| CN201717800U true CN201717800U (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202247307U Expired - Fee Related CN201717800U (en) | 2010-06-13 | 2010-06-13 | Power supply device for ultra-large power silicon carbide smelting furnace and silicon carbide smelting device |
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| CN (1) | CN201717800U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872978A (en) * | 2010-06-13 | 2010-10-27 | 平罗县滨河碳化硅制品有限公司 | Power supply device for ultrahigh-power silicon carbide smelting furnace and silicon carbide smelting device |
| CN116317638A (en) * | 2023-05-23 | 2023-06-23 | 上海电气集团(张家港)变压器有限公司 | Power supply device and graphitization processing system |
-
2010
- 2010-06-13 CN CN2010202247307U patent/CN201717800U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872978A (en) * | 2010-06-13 | 2010-10-27 | 平罗县滨河碳化硅制品有限公司 | Power supply device for ultrahigh-power silicon carbide smelting furnace and silicon carbide smelting device |
| CN101872978B (en) * | 2010-06-13 | 2012-11-07 | 平罗县滨河碳化硅制品有限公司 | Power supply device for ultrahigh-power silicon carbide smelting furnace and silicon carbide smelting device |
| CN116317638A (en) * | 2023-05-23 | 2023-06-23 | 上海电气集团(张家港)变压器有限公司 | Power supply device and graphitization processing system |
| CN116317638B (en) * | 2023-05-23 | 2024-04-19 | 上海电气集团(张家港)变压器有限公司 | Power supply device and graphitization processing system |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20110119 Termination date: 20120613 |