CN103296919A - Three-phase two-pulse-wave high-power pulse current power supply for electrolytic cells and power supplying method - Google Patents
Three-phase two-pulse-wave high-power pulse current power supply for electrolytic cells and power supplying method Download PDFInfo
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- CN103296919A CN103296919A CN2013102660393A CN201310266039A CN103296919A CN 103296919 A CN103296919 A CN 103296919A CN 2013102660393 A CN2013102660393 A CN 2013102660393A CN 201310266039 A CN201310266039 A CN 201310266039A CN 103296919 A CN103296919 A CN 103296919A
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Abstract
The invention discloses a three-phase two-pulse-wave high-power pulse current power supply for electrolytic cells and a power supplying method. The three-phase two-pulse-wave high-power pulse current power supply for the electrolytic cells comprises a three-phase voltage regulation transformer, a three-phase induction filtering and rectifying transformer, a three-phase induction filter, a same-phase inverse-parallel-connection alternating current bus bar, single-phase rectifying cabinets, same-phase inverse-parallel-connection direct current bus bars and a unified controller. The three-phase voltage regulation transformer, the three-phase induction filtering and rectifying transformer and the same-phase inverse-parallel-connection alternating current bus bar are serially connected in sequence, output ends of the same-phase inverse-parallel-connection alternating current bus bar are respectively connected with input ends of the single-phase rectifying cabinets, output ends of the single-phase rectifying cabinets are connected with positive and negative electrodes of the electrolytic cells through the same-phase inverse-parallel-connection direct current bus bars, and the unified controller is connected with control ends of the single-phase rectifying cabinets. Two-pulse-wave high-power pulse current power source adjustable in duty ratio can be supplied to the electrolytic cells, thereby the electrolytic cells can be guaranteed in the most efficient electrolysis state and energy consumption of electrolysis is greatly reduced.
Description
Technical field
The present invention relates to a kind of electrolysis power of metallurgy industry, particularly a kind of three-phase two pulse high-power arteries and veins stream power supply and method of supplying power to for electrolysis tank.
Background technology
Industry utilizations such as current electrolysis manganese, electrolytic zinc be many pulse waves dc electrolysis technology, namely three-phase alternating current is 6 pulse waves or 12 pulse wave direct currents through the three-phase commutation bridge rectification, the direct current after the rectification directly inserts electrolytic tank electrolysis.There is the more problem of not high, the per ton electrolytic manganese consume electric power of Faradaic current efficient in dc electrolysis manganese, and its direct current consumption can reach 5800 ~ 6100 kWh/t.
Show that according to pertinent literature in the pulse electrolysis process, electrolytic efficiency is subjected to the acting in conjunction of electric charge transfer and diffusion into the surface effect.In 5～100 Hz frequency ranges, rate controlling step is diffusion into the surface.Along with pulse frequency increases, the pulse period shortens, and the pulse diffusion layer of generation is thinner, and mass transfer and ions diffusion in the solution are relatively easy, has strengthened ion migration and nucleation rate, has improved current efficiency.And after pulse frequency surpassed 100 Hz, when further increasing pulse frequency, rate controlling step was that electric charge shifts, and diffusion into the surface is restricted, and metal ion can not in time be diffused near the negative electrode, thereby has influenced the current efficiency of electro-deposition.So adopting certain duty ratio, frequency is the pulse current of 100Hz when carrying out metals such as electrolytic manganese, zinc, the efficient of Faradaic current is higher, and power consumption is lower.Do not have the powerful pulse power in China's nonferrous metallurgy electrolysis industry at present, seriously restricted the raising of electrolytic etching of metal industry Faradaic current efficient such as manganese, zinc.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of efficient height, energy consumption low the three-phase two pulse high-power arteries and veins stream power supply and the method for supplying power to that are used for electrolysis tank.
The technical solution adopted for the present invention to solve the technical problems is: a kind of three-phase two pulse high-power arteries and veins stream power supply for electrolysis tank, comprise three-phase regulating transformer, three-phase induction filter rectification transformer, the three-phase induction filter, cophase counter parallel connection exchanges busbar, the single-phase rectifier cabinet, the cophase counter parallel connection DC master row, general controller, described three-phase regulating transformer, three-phase induction filter rectification transformer, cophase counter parallel connection exchanges busbar and is connected in series successively, the three-phase induction filter links to each other with three-phase induction filter rectification transformer, the output that cophase counter parallel connection exchanges busbar links to each other with the input of single-phase rectifier cabinet respectively, the single-phase rectifier cabinet adopts the cophase counter parallel connection structure, its 4 leading-out terminals are divided into two groups, every group positive leading-out terminal is connected with the DC master row input rapids of 2 cophase counter parallel connection cablings respectively with negative leading-out terminal, the output of every group of DC master row is just being pressed, negative polarity respectively with another the group DC master row output formation in parallel just, negative the two poles of the earth, be connected with negative pole with the positive pole of electrolysis tank respectively, general controller links to each other with the control end of single-phase rectifier cabinet again.
The above-mentioned three-phase two pulse high-power arteries and veins stream power supply that is used for electrolysis tank, described three-phase induction filter rectification transformer is the three-phase multi winding transformer, comprise a sub-high pressure winding, secondary low-voltage valve side winding and Filter Winding, low pressure valve side winding is two delta windings of cophase counter parallel connection, each phase winding of low pressure valve side winding connects the single-phase full wave rectifier bridge of single-phase rectifier cabinet separately, Filter Winding links to each other with the three-phase induction filter, and Filter Winding is zero impedance.
The above-mentioned three-phase two pulse high-power arteries and veins stream power supply that is used for electrolysis tank, described three-phase induction filter rectification transformer is the three-phase multi winding transformer, comprise a sub-high pressure winding, secondary low-voltage valve side winding and Filter Winding, low pressure valve side winding is two T windings and two M windings, 8 leading-out terminals of two T windings and two M windings are connected 8 respectively and exchange busbar, the interchange busbar of same phase adopts the cophase counter parallel connection cabling, be connected respectively to 4 single-phase full wave rectifier bridges of single-phase rectifier cabinet, Filter Winding links to each other with the three-phase induction filter, and Filter Winding is zero impedance.
The above-mentioned three-phase two pulse high-power arteries and veins stream power supply that is used for electrolysis tank, described three-phase induction filter is made up of reactor and capacitor series.
A kind of method of supplying power to that flows power supply for the three-phase two pulse high-power arteries and veins of electrolysis tank, may further comprise the steps: the single-phase rectifier cabinet of three-phase two pulse high-power arteries and veins stream power supply adopts the cophase counter parallel connection structure, its 4 leading-out terminals are divided into two groups, every group positive leading-out terminal is connected with the DC master row input rapids of 2 cophase counter parallel connection cablings respectively with negative leading-out terminal, the output of every group of DC master row by positive and negative polarity respectively with another the group DC master row the positive and negative the two poles of the earth of output formation in parallel, be connected with negative pole with the positive pole of electrolysis tank respectively again.
Technique effect of the present invention is:
(1) the present invention is by each independent order phase all-wave controlled rectification bridge mutually of transformer load winding, and for electrolysis tank provides the arteries and veins stream power supply of two pulse high-power EDM Generator of Adjustable Duty Ratio, the harmonic content of power supply is littler than three-phase bridge circuit.
(2) exchange busbar and DC master row among the present invention and adopt the cophase counter parallel connection structure, weakened the eddy current loss that big electric current produces busbar greatly, and the electromagnetic interference that the space is produced.
(3) the present invention will respond to filter transformer and the three-phase induction filter combines, the additional Filter Winding of induction filter transformer designs for zero impedance, and the three-phase induction filter is the complete modulation filter, realize harmonic wave and idlely suppress nearby and compensate, reduced supplementary load loss, temperature rise, the noise and vibration of voltage regulating transformer and rectifier transformer.
(4) three or two rectifier cabinets of the control of the general controller among the present invention guarantee that direct current output equates, thereby guarantee the three-phase equilibrium power supply, and according to optimum duty ratio, the optimum that calculates each rectifier cabinet triggers the angle, export to rectifier cabinet, thereby guarantee that electric tank working is at efficient electrolysis state.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the structural representation of the embodiment of the invention 2.
In the accompanying drawing: the 1-three-phase regulating transformer, 2-three-phase induction filter rectification transformer, 3-three-phase induction filter, the 4-cophase counter parallel connection exchanges busbar, 5-control system, 6 ~ 8-single-phase rectifier cabinet, 9 ~ 12-cophase counter parallel connection DC master row, 13 ~ 15-electrolysis tank.
Embodiment
As shown in Figure 1, the present invention includes three-phase regulating transformer 1, three-phase induction filter rectification transformer 2, three-phase induction filter 3, cophase counter parallel connection exchanges busbar 4, control system 5, single-phase rectifier cabinet 6 ~ 8, cophase counter parallel connection DC master row 9 ~ 12, electrolysis tank 13 ~ 15, described three-phase regulating transformer 1, three-phase induction filter rectification transformer 2, cophase counter parallel connection exchanges busbar 4 and is connected in series successively, three-phase induction filter 3 links to each other with three-phase induction filter rectification transformer 2, three outputs that cophase counter parallel connection exchanges busbar 4 link to each other with the input of single-phase rectifier cabinet 6 ~ 8 respectively, the output of single-phase rectifier cabinet 6 ~ 8 links to each other through the both positive and negative polarity of cophase counter parallel connection DC master row 9 ~ 12 with electrolysis tank 13 ~ 15, and the general controller of control system 5 links to each other with the control end of single-phase rectifier cabinet 6 ~ 8.
Three-phase induction filter rectification transformer 2 is the three-phase multi winding transformer, comprise a sub-high pressure winding, secondary low-voltage valve side winding and Filter Winding, low pressure valve side winding is two delta windings, a triangle winding is that Yd11 connects, one connects for Yd5, is the cophase counter parallel connection structure thereby make two load windings.And the outlet busbar of the corresponding phase of two delta windings closely forms cophase counter parallel connection by playing cabling, and the electric current sum of two busbars is almost nil, eliminates eddy current loss and the inductance of busbar.
Each phase winding of three-phase induction filter rectification transformer low voltage valve side winding is separately by exchanging the single-phase full wave rectifier bridge in the busbar connection rectifier cabinet, thereby the generation frequency is the arteries and veins stream power supply of 100Hz, and the duty ratio of arteries and veins stream can trigger the angle by thyristor and regulate.
A cathode rectifier busbar of each single-phase rectifier cabinet and the cathode bus bar of another rectifier bridge form cophase counter parallel connection closely near cabling, the electric current of two busbars and almost nil, thereby eddy current loss and the inductance of elimination busbar.Embodiment is: the single-phase rectifier cabinet adopts the cophase counter parallel connection structure, its 4 leading-out terminals are divided into two groups, 2 leading-out terminals of every group (1 positive leading-out terminal with 1 negative leading-out terminal) are connected with the DC master row input of 2 cophase counter parallel connection cablings respectively, in parallel (anode is in parallel with anode with the output of another group DC master row respectively by positive and negative polarity for the output of every group of DC master row, negative terminal is in parallel with negative terminal) form positive and negative the two poles of the earth, be connected with negative pole with the positive pole of electrolysis tank respectively again.
Under the prerequisite of the specification basically identical that guarantees three electrolysis tanks, just can make three rectifier cabinet direct current command value of general controller equate, thereby make its three rectifier cabinet institute on-loads keep balance.
The general controller of control system 5 flows the optimum trigger angle that optimum duty ratio is calculated three rectifier cabinet thyristors according to arteries and veins.Native system is owing to three electrolysis tank specification unanimities, so the value that can make three rectifier cabinets of general controller trigger angles equates or be close.
The equivalent impedance of responding to filter rectification transformer Filter Winding for assurance is zero, Filter Winding must be placed between transformer high-voltage winding and the low pressure winding, and realize by the size between each winding of appropriate design transformer, its core is to adjust the three-winding transformer short-circuit impedance between the winding in twos, and making it to satisfy equivalent impedance is zero requirement.
The whole low pressure valve side winding that becomes is two delta windings of cophase counter parallel connection, and 6 leading-out terminals of two delta windings connect 6 respectively and exchange busbar.The interchange busbar of same phase adopts the cophase counter parallel connection cabling, is connected respectively to 6 single-phase full wave rectifier bridges.The whole Filter Winding that becomes designs into zero impedance, connects inductive filter.Inductive filter is the complete modulation filter.General controller can be controlled the direct current output of each single-phase rectifier cabinet, thereby guarantees the threephase load balance of power supply, and can be according to optimum duty ratio, and the optimum that calculates each rectifier cabinet triggers the angle.Electrolysis tank arteries and veins stream electrical connection scheme comprises three independently electrolyzer with electricity series.The electrolysis tank arteries and veins stream that each electrolytic series comprises single-phase rectifier cabinet and cophase counter parallel connection is electrically connected copper bar.The single-phase rectifier cabinet contains two groups of cophase counter parallel connection single-phase full wave controlled rectification bridges, its fixed-frequency, EDM Generator of Adjustable Duty Ratio.The arteries and veins stream of each serial cophase counter parallel connection is electrically connected copper bar and links to each other with the both positive and negative polarity of electrolysis tank respectively.Three serial same load operation of electrolysis tank while.
Fig. 2 is another kind of embodiment of the present invention.In the present embodiment, the secondary low-voltage valve side winding of three-phase induction filter rectification transformer is two T windings and two M windings, 8 leading-out terminals of two T windings and two M windings are connected 8 respectively and exchange busbar, the interchange busbar of same phase adopts the cophase counter parallel connection cabling, is connected respectively to 4 single-phase full wave rectifier bridges of single-phase rectifier cabinet 6 ~ 7.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as limitation of the scope of the invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with claims.
Claims (5)
1. three-phase two pulse high-power arteries and veins that are used for electrolysis tank flow power supply, it is characterized in that: comprise three-phase regulating transformer, three-phase induction filter rectification transformer, the three-phase induction filter, cophase counter parallel connection exchanges busbar, the single-phase rectifier cabinet, the cophase counter parallel connection DC master row, general controller, described three-phase regulating transformer, three-phase induction filter rectification transformer, cophase counter parallel connection exchanges busbar and is connected in series successively, the three-phase induction filter links to each other with three-phase induction filter rectification transformer, the output that cophase counter parallel connection exchanges busbar links to each other with the input of single-phase rectifier cabinet respectively, the single-phase rectifier cabinet adopts the cophase counter parallel connection structure, its 4 leading-out terminals are divided into two groups, every group positive leading-out terminal is connected with the DC master row input rapids of 2 cophase counter parallel connection cablings respectively with negative leading-out terminal, the output of every group of DC master row is just being pressed, negative polarity respectively with another the group DC master row output formation in parallel just, negative the two poles of the earth, be connected with negative pole with the positive pole of electrolysis tank respectively, general controller links to each other with the control end of single-phase rectifier cabinet again.
2. the three-phase two pulse high-power arteries and veins for electrolysis tank according to claim 1 flow power supply, it is characterized in that: described three-phase induction filter rectification transformer is the three-phase multi winding transformer, comprise a sub-high pressure winding, secondary low-voltage valve side winding and Filter Winding, low pressure valve side winding is two delta windings of cophase counter parallel connection, each phase winding of low pressure valve side winding connects the single-phase full wave rectifier bridge of single-phase rectifier cabinet separately, Filter Winding links to each other with the three-phase induction filter, and Filter Winding is zero impedance.
3. the three-phase two pulse high-power arteries and veins for electrolysis tank according to claim 1 flow power supply, and it is characterized in that: described three-phase induction filter is made up of reactor and capacitor series.
4. the three-phase two pulse high-power arteries and veins for electrolysis tank according to claim 1 flow power supply, it is characterized in that: described three-phase induction filter rectification transformer is the three-phase multi winding transformer, comprise a sub-high pressure winding, secondary low-voltage valve side winding and Filter Winding, low pressure valve side winding is two T windings and two M windings, 8 leading-out terminals of two T windings and two M windings are connected 8 respectively and exchange busbar, the interchange busbar of same phase adopts the cophase counter parallel connection cabling, be connected respectively to 4 single-phase full wave rectifier bridges of single-phase rectifier cabinet, Filter Winding links to each other with the three-phase induction filter, and Filter Winding is zero impedance.
5. the method for supplying power to of the three-phase two pulse high-power arteries and veins stream power supply for electrolysis tank as claimed in claim 1, may further comprise the steps: the single-phase rectifier cabinet of three-phase two pulse high-power arteries and veins stream power supply adopts the cophase counter parallel connection structure, its 4 leading-out terminals are divided into two groups, every group positive leading-out terminal is connected with the DC master row input rapids of 2 cophase counter parallel connection cablings respectively with negative leading-out terminal, the output of every group of DC master row by positive and negative polarity respectively with another the group DC master row the positive and negative the two poles of the earth of output formation in parallel, be connected with negative pole with the positive pole of electrolysis tank respectively again.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310266039.3A CN103296919B (en) | 2013-06-28 | 2013-06-28 | For the pulse high-power arteries and veins stream power supply of three-phase two and method of supplying power to of electrolytic cell |
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| CN201310266039.3A CN103296919B (en) | 2013-06-28 | 2013-06-28 | For the pulse high-power arteries and veins stream power supply of three-phase two and method of supplying power to of electrolytic cell |
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| CN103296919A true CN103296919A (en) | 2013-09-11 |
| CN103296919B CN103296919B (en) | 2017-06-06 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103469249A (en) * | 2013-09-23 | 2013-12-25 | 益阳金能新材料有限责任公司 | Power supply unit for manganese electrolysis |
| EP2896722A1 (en) * | 2014-01-15 | 2015-07-22 | ETOGAS GmbH | Assembly for supplying an electrolyzer with direct current and facility for carrying out electrolysis |
| CN104831314A (en) * | 2015-05-21 | 2015-08-12 | 成都市新明节能科技有限公司 | Industrial energy-saving high-frequency impulse electrolytic manganese device |
| CN105471292A (en) * | 2015-12-25 | 2016-04-06 | 辽宁北方科技集团有限公司 | Plasma electrolytic oxidation power supply |
| CN106411146A (en) * | 2016-11-16 | 2017-02-15 | 株洲中车时代装备技术有限公司 | 12-pulse wave voltage-type reversible rectifying device and control method |
| CN107026560A (en) * | 2017-05-27 | 2017-08-08 | 深圳市禾望电气股份有限公司 | A kind of current transformer rack |
| CN112259342A (en) * | 2020-09-30 | 2021-01-22 | 中电电气(江苏)变压器制造有限公司 | Novel connection structure of three-phase transformer and SCR copper bar |
| CN116845894A (en) * | 2023-08-30 | 2023-10-03 | 国网智能电网研究院有限公司 | High-pass filter |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469249A (en) * | 2013-09-23 | 2013-12-25 | 益阳金能新材料有限责任公司 | Power supply unit for manganese electrolysis |
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| CN104831314B (en) * | 2015-05-21 | 2017-02-22 | 成都市新明节能科技有限公司 | Industrial energy-saving high-frequency impulse electrolytic manganese device |
| CN105471292A (en) * | 2015-12-25 | 2016-04-06 | 辽宁北方科技集团有限公司 | Plasma electrolytic oxidation power supply |
| CN106411146A (en) * | 2016-11-16 | 2017-02-15 | 株洲中车时代装备技术有限公司 | 12-pulse wave voltage-type reversible rectifying device and control method |
| CN106411146B (en) * | 2016-11-16 | 2019-01-29 | 株洲中车时代电气股份有限公司 | A kind of 12 pulsating wave voltage-type reversible rectifier device and its control method |
| CN107026560A (en) * | 2017-05-27 | 2017-08-08 | 深圳市禾望电气股份有限公司 | A kind of current transformer rack |
| CN107026560B (en) * | 2017-05-27 | 2023-09-26 | 深圳市禾望电气股份有限公司 | Converter cabinet |
| CN112259342A (en) * | 2020-09-30 | 2021-01-22 | 中电电气(江苏)变压器制造有限公司 | Novel connection structure of three-phase transformer and SCR copper bar |
| CN116845894A (en) * | 2023-08-30 | 2023-10-03 | 国网智能电网研究院有限公司 | High-pass filter |
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Effective date of registration: 20171122 Address after: 410011 Shaoshan, Furong district, Hunan, North Road, No. 81, No. Patentee after: CHINESE NONFERROUS METAL SURVEY AND DESIGN INSTITUTE OF CHANGSHA Co.,Ltd. Address before: 410205 Hunan Province, Yuelu District City Court Road, No. 186 Changsha Valley Science Park of Hunan University Co-patentee before: HUNAN UNIVERSITY SCIENCE PARK CO.,LTD. Patentee before: ZHONGLV HUADA TECHNOLOGY Co.,Ltd. Co-patentee before: Luo Longfu Co-patentee before: Zhang Zhiwen |
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