CN114890655A - Electric boosting power supply system for flexible glass kiln - Google Patents
Electric boosting power supply system for flexible glass kiln Download PDFInfo
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- CN114890655A CN114890655A CN202210454142.XA CN202210454142A CN114890655A CN 114890655 A CN114890655 A CN 114890655A CN 202210454142 A CN202210454142 A CN 202210454142A CN 114890655 A CN114890655 A CN 114890655A
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- 239000011521 glass Substances 0.000 title claims abstract description 31
- 238000002955 isolation Methods 0.000 claims description 6
- 238000011217 control strategy Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 230000011664 signaling Effects 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 abstract description 19
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 239000013307 optical fiber Substances 0.000 abstract description 3
- 238000002844 melting Methods 0.000 description 17
- 230000008018 melting Effects 0.000 description 17
- 239000011449 brick Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
- H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Human Computer Interaction (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention provides an electric boosting power supply system for a flexible glass kiln, which comprises single-phase output adjustable power supplies with the number corresponding to that of electrodes in the electric boosting kiln and a synchronous signal control box connected with the adjustable power supplies through optical fibers, wherein the single-phase output adjustable power supply is an adjustable phase power supply which takes IGBT as a power control module, the synchronous signal control box is used for providing multi-path synchronous signals for the single-phase output adjustable power supply and controlling the output phase of the single-phase output adjustable power supply by adjusting the mutual time difference among the multi-path synchronous signals, the invention controls the output phase of the single-phase output adjustable power supply by adjusting the mutual time difference among the multi-path synchronous signals so as to adjust the heating distribution in the kiln, the method has good effects of improving the quality of the glass solution, prolonging the service life of the glass kiln and reducing the energy consumption, and obtains good economic benefits.
Description
Technical Field
The invention belongs to the technical field of substrate glass production, and particularly relates to an electric boosting power supply system for a flexible glass kiln.
Background
In the production of substrate glass, an electric melting furnace is the most important key equipment. The electric melting furnace has the main use advantages that: high melting efficiency, simple structure, high automation degree, good working environment and the like. The method is extremely suitable for places with high melting difficulty, high temperature requirement and strict glass quality and optical performance requirement. The electric boosting kiln is almost adopted at home and abroad for melting electronic glass with high quality requirements such as liquid crystal glass substrates, cover plate glass, flexible glass and the like.
In order to achieve the purpose of accurate control, the electric melting furnace mostly adopts a silicon controlled rectifier mode to adjust power in control, but the phase angle difference of adjacent electrodes in the adjusting method is 120 degrees, the voltage difference between the adjacent electrodes is large, so that the current of the pool wall is large, the heating energy of the pool wall is large, and the loss of the pool wall bricks between the electrodes is very serious. Thus seriously jeopardizing the life of the electric boosting kiln. How to effectively prolong the service life of the smelting furnace and reduce the loss of the pool wall bricks is a serious subject.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an electric boosting power supply system for a flexible glass kiln, which adjusts the heating distribution in the kiln by reasonably distributing the phases of electric boosting power supplies connected with adjacent electrodes, has good effects on improving the quality of glass solution, prolonging the service life of the glass kiln and reducing energy consumption, and obtains good economic benefit.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an electric boosting electrical power generating system for flexible glass kiln, includes the single-phase output adjustable power of the single-station that corresponds quantity with electric boosting kiln electrode in and a synchronizing signal control box of being connected through optic fibre and adjustable power, wherein, single-phase output adjustable power is for using IGBT as power control module's adjustable phase power, the synchronizing signal control box is used for providing multichannel synchronizing signal and controls the output phase place of single-phase output adjustable power through adjusting the mutual difference in time between the multichannel synchronizing signal for single-phase output adjustable power.
Furthermore, the voltage waveform output by the single-phase output adjustable power supply is a complete sine wave, and the amplitude of the sine wave is adjustable.
Furthermore, the single-phase output adjustable power supply adopts three-phase power supply inside, three paths of power supply are divided into three paths of power supply to be output in parallel through the input transformer, three-phase alternating current is rectified into direct current in each path, standard positive ripple voltage is output after the three-phase alternating current is inverted through the IGBT, and the direct ripple voltage is boosted through the output transformer and then is sent to a load.
Furthermore, the adjustment mode of the synchronization signal is adjusted by a fixed step successive approximation mode.
Furthermore, a phase synchronization device is arranged in the synchronization signal control box, the phase synchronization device is controlled by a single chip microcomputer and is used for generating multiple paths of 50Hz synchronization pulse signals, and the mutual time difference between the multiple paths of synchronization signals is adjustable.
Furthermore, the phase difference of the output phases of the adjacent single-phase output adjustable power supplies is adjusted to be 0-90 degrees by the synchronous signal control box.
Further, the control strategy of the electric boosting power supply system is as follows: and the total power output is controlled in a closed loop mode through the detection feedback of the voltage and the current on the output side.
Furthermore, the electric boosting power supply is also connected with an isolation transformer, and an isolation switch is arranged behind the isolation transformer.
Compared with the prior art, the invention has at least the following beneficial effects:
the invention provides an electric boosting power supply system for a flexible glass kiln, which adopts a power supply taking IGBT as a power control module, has the remarkable characteristics of small harmonic component, good waveform quality, high power factor and high control precision, and is provided with a synchronous signal control box, wherein synchronous signals among multiple paths of synchronous signals sent by the synchronous signal control box are adjustable to control the phase of the electric boosting power supply, the phase between adjacent electrode power supplies is adjustable, and the voltage difference between adjacent electrodes is changed after the phase is changed, so that the distribution of a power line in the melting kiln is influenced, the uniformity of glass solution in the electric boosting kiln is improved, the electric energy consumption between the walls of a melting furnace is reduced, the erosion speed of a wall brick of the melting furnace is reduced, and the service life of the electric boosting kiln is prolonged.
Preferably, the multi-channel synchronous signal sent by the synchronous signal control box is adjusted by adopting a fixed step successive approximation mode, so that the phase of the power supply can be adjusted in the operation.
The electric boosting power supply system is used in the field of flexible glass substrate melting furnace application, achieves good effect when used on site, adjusts the heating distribution in the furnace by reasonably distributing the phase of connecting adjacent electrodes with the electric boosting power supply, has good effect on improving the quality of glass solution, prolonging the service life of the glass furnace and reducing energy consumption, and achieves good economic benefit.
Drawings
FIG. 1 is a diagram of a kiln electric boosting power supply system;
FIG. 2 is an electrical schematic;
FIG. 3 is a block diagram of a kiln electric boosting power supply system.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1, the present invention provides an electric boosting power supply system for a flexible glass furnace, which specifically comprises a single-phase output adjustable power supply and a synchronous signal control box, wherein the number of the single-phase output adjustable power supply corresponds to that of electrodes in the electric boosting furnace, and the single-phase output adjustable power supply comprises:
single-phase output adjustable power supply:
1) the waveform phase output by the single-phase output adjustable power supply can be adjusted according to a synchronous signal (within the range of 0-360 degrees);
2) the voltage waveform output by the single-phase output adjustable power supply is a complete sine wave, and the amplitude of the sine wave is adjustable;
3) the single-phase output adjustable power supply can run three modes of constant voltage, constant current and constant power;
4) the adjustable power supply is an adjustable phase angle power supply, and the IGBT is used as a power control module;
specifically, as shown in fig. 2, the adjustable power supply adopts three-phase power supply, and is divided into three paths through an input transformer to be output in parallel (each path outputs about 100KW), each path firstly rectifies three-phase alternating current into direct current, outputs standard positive ripple voltage after being inverted by an IGBT, and then boosts the voltage (with adjustable gears) through an output transformer and sends the voltage to a load;
the synchronous signal control box:
1) can generate multi-path synchronous signals and output the signals by optical fibers;
2) the mutual time difference among the multi-path synchronous signals is adjustable, and the output phase of the single-phase output adjustable power supply is controlled by adjusting the mutual time difference among the multi-path synchronous signals;
3) the synchronous signal adjustment control mode is adjusted in a fixed step successive approximation mode without stopping and is adjusted during the operation of the electric boosting power supply.
Preferably, as shown in fig. 3, the synchronizing signal control box includes a phase synchronizer, the phase synchronizer is connected to the single-phase output adjustable power source through an optical fiber, the phase synchronizer is controlled by a single chip microcomputer to generate multiple paths of 50Hz synchronizing pulse signals, and the mutual time difference between the paths of synchronizing signals is adjustable.
Preferably, the phase synchronization device is provided with a USB interface, so that the phase angle between the power supplies of the adjacent electrodes can be quickly adjusted through special software in a PC (personal computer), the phase difference of the adjacent electrodes is ensured to be in the range of 0-90 degrees, the voltage of the adjacent electrodes can be reduced, and the erosion loss of the pool wall bricks can be reduced.
The control strategy of the electric boosting power supply system of the invention is as follows:
the electric boosting power supply system disclosed by the invention controls the total output power in a closed loop mode through the detection feedback of the voltage and the current at the output side.
The control modes of the electric boosting power supply system are divided into a current mode, a voltage mode and a power mode, and the electric boosting power supply system generally operates in the current mode.
The given control scheme of the electric boosting power supply system comprises the following steps:
the electric boosting power supply system has the capability of local/remote switching, adopts a multi-level safety control design and specifically comprises the following steps: the electric boosting power supply system can work in a remote digital current control mode under normal conditions, can be connected to a DCS through a PROFIBUS bus communication technology at the moment, and can finish the setting of the power given by a workstation in a remote mode at different places, so that internal data alarm information of the power supply can be displayed in the DCS workstation; when communication is in problem, the electric boosting power supply system is automatically switched to a local mode to operate without disturbance, and the power supply can be completely separated from a DCS system and independently operated.
Example 1
As shown in fig. 1, each melting furnace is composed of three to five groups of electrodes, each group of electrodes is correspondingly provided with one electric boosting power supply of the invention, a phase synchronization device of a synchronization signal control box generates multiple paths of synchronization signals, the mutual time difference between the multiple paths of synchronization signals is adjusted, the phase of the voltage waveform output by the adjacent electric boosting power supplies in the melting furnace is adjusted, the phase difference of the voltage waveform output by the adjacent electric boosting power supplies in the melting furnace is 0 °, the voltage difference between the adjacent electrodes is changed after the phase change, the distribution of a power line in the melting furnace is influenced, the uniformity of glass solution in the electric boosting furnace is improved, the consumption of electric energy between the walls of the melting furnace is reduced, the erosion speed of the wall bricks of the melting furnace is reduced, and the service life of the electric boosting furnace is prolonged.
The output voltage of the electric boosting power supply can reach 800V-1200V after passing through the step-up transformer, the current can reach 150A-240A, and the maximum power can reach 300 KW.
The specific parameters of the power supply are determined according to the size of the electrode of the electric boosting kiln, the different depths and widths of the kiln, the resistivity of the molten glass, the size of the dissolving tank and the melting amount, and the applied power is set.
In order to facilitate power supply switching and prevent the voltage of the tank furnace from being reversely connected in series into the electric boosting power supply system during switching, an isolating switch is required to be configured behind each group of electric boosting power supply isolating transformers, and safe switching can be rapidly completed during fault processing.
Claims (8)
1. The utility model provides an electric boosting electrical power generating system for flexible glass kiln which characterized in that, includes the single-stage output adjustable power who corresponds quantity with electric boosting kiln furnace electrode and a synchronizing signal control box of being connected through optic fibre and adjustable power, wherein, single-stage output adjustable power is for using IGBT as the adjustable phase power of power control module, the synchronizing signal control box is used for providing multichannel synchronizing signal and controlling the output phase place of single-stage output adjustable power through adjusting the mutual difference in time between the multichannel synchronizing signal for single-phase output adjustable power.
2. The electric boosting power supply system for the flexible glass furnace as claimed in claim 1, wherein the voltage waveform of the single phase output adjustable power supply output is a complete sine wave, and the amplitude of the sine wave is adjustable.
3. The electric boosting power supply system for the flexible glass kiln as claimed in claim 1, wherein the single-phase output adjustable power supply is internally supplied with three phases, and is divided into three paths for parallel output through an input transformer, wherein each path rectifies three-phase alternating current into direct current, outputs standard positive sine wave voltage after inversion through an IGBT, and then is boosted through an output transformer and sent to a load.
4. An electric boosting power supply system for a flexible glass furnace according to claim 1 wherein said synchronization signal adjustment is a fixed step successive approximation adjustment.
5. The electric boosting power supply system for the flexible glass kiln as claimed in claim 1, wherein the synchronizing signal control box comprises a phase synchronizer therein, the phase synchronizer is controlled by a single chip microcomputer to generate a plurality of paths of 50Hz synchronizing pulse signals, and the mutual time difference between each path of synchronizing signal is adjustable.
6. An electric boosting power supply system for a flexible glass furnace according to claim 1 wherein said synchronization signal control box adjusts the phase difference between the output phases of adjacent single phase output adjustable power supplies to be in the range of 0-90 °.
7. The electrical boosting power supply system for a flexible glass furnace of claim 1, wherein the control strategy of the electrical boosting power supply system is: and the total power output is controlled in a closed loop mode through the detection feedback of the voltage and the current on the output side.
8. The electrical boosting power supply system for the flexible glass furnace as claimed in claim 1, wherein an isolation transformer is further connected to the electrical boosting power supply, and an isolation switch is disposed behind the isolation transformer.
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CN202210454142.XA CN114890655A (en) | 2022-04-27 | 2022-04-27 | Electric boosting power supply system for flexible glass kiln |
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CN202210454142.XA CN114890655A (en) | 2022-04-27 | 2022-04-27 | Electric boosting power supply system for flexible glass kiln |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115594386A (en) * | 2022-08-30 | 2023-01-13 | 北京天和药玻科技有限公司(Cn) | Electric boosting system of glass kiln |
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CN1356762A (en) * | 2001-12-25 | 2002-07-03 | 深圳安圣电气有限公司 | Parallelly connected reverse converter system |
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CN201850213U (en) * | 2010-09-28 | 2011-06-01 | 彩虹集团公司 | Electric melting tin oxide electrode heating control device of TFT-LCD (Thin Film Transistor Liquid Crystal Display) glass kiln |
JP2012018890A (en) * | 2010-07-09 | 2012-01-26 | Nagoya Univ | Power supply apparatus for generating continuous plasma in liquid |
CN202576194U (en) * | 2012-03-27 | 2012-12-05 | 彩虹显示器件股份有限公司 | Electric melting kiln heating device for melting borosilicate glass |
CN103011553A (en) * | 2012-12-13 | 2013-04-03 | 陕西彩虹电子玻璃有限公司 | Control method for electric melting furnace based on phase-locking controller |
CN216073536U (en) * | 2021-09-27 | 2022-03-18 | 彩虹集团(邵阳)特种玻璃有限公司 | Electric melting tin oxide electrode heating control device of cover plate glass tank furnace |
-
2022
- 2022-04-27 CN CN202210454142.XA patent/CN114890655A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1356762A (en) * | 2001-12-25 | 2002-07-03 | 深圳安圣电气有限公司 | Parallelly connected reverse converter system |
CN101800477A (en) * | 2010-04-08 | 2010-08-11 | 彩虹集团公司 | Tin oxide electrode single-phase control heating systemand application method thereof |
JP2012018890A (en) * | 2010-07-09 | 2012-01-26 | Nagoya Univ | Power supply apparatus for generating continuous plasma in liquid |
CN201850213U (en) * | 2010-09-28 | 2011-06-01 | 彩虹集团公司 | Electric melting tin oxide electrode heating control device of TFT-LCD (Thin Film Transistor Liquid Crystal Display) glass kiln |
CN202576194U (en) * | 2012-03-27 | 2012-12-05 | 彩虹显示器件股份有限公司 | Electric melting kiln heating device for melting borosilicate glass |
CN103011553A (en) * | 2012-12-13 | 2013-04-03 | 陕西彩虹电子玻璃有限公司 | Control method for electric melting furnace based on phase-locking controller |
CN216073536U (en) * | 2021-09-27 | 2022-03-18 | 彩虹集团(邵阳)特种玻璃有限公司 | Electric melting tin oxide electrode heating control device of cover plate glass tank furnace |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115594386A (en) * | 2022-08-30 | 2023-01-13 | 北京天和药玻科技有限公司(Cn) | Electric boosting system of glass kiln |
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Application publication date: 20220812 |