CN203326918U - Three-phase two-pulse wave high-power pulsating current power supply for electrolytic tanks - Google Patents
Three-phase two-pulse wave high-power pulsating current power supply for electrolytic tanks Download PDFInfo
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- CN203326918U CN203326918U CN2013203796485U CN201320379648U CN203326918U CN 203326918 U CN203326918 U CN 203326918U CN 2013203796485 U CN2013203796485 U CN 2013203796485U CN 201320379648 U CN201320379648 U CN 201320379648U CN 203326918 U CN203326918 U CN 203326918U
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Abstract
The utility model discloses a three-phase two-pulse wave high-power pulsating current power supply for electrolytic tanks. The three-phase two-pulse wave high-power pulsating current power supply comprises a three-phase regulating transformer, a three-phase induction filter rectifier transformer, a three-phase induction filter, a same phase invert parallel connection AC busbar, single-phase rectifier cabinets, same phase invert parallel connection DC busbars and an integrated controller. The three-phase regulating transformer, the three-phase induction filter rectifier transformer and the same phase invert parallel connection AC busbar are successively connected in series. Output ends of the same phase invert parallel connection AC busbar are respectively connected with inputs of the single-phase rectifier cabinets, and outputs of the single-phase rectifier cabinets are connected with anodes and cathodes of the electrolytic tanks through the same phase invert parallel connection DC busbars. The integrated controller is connected with control ends of the single-phase rectifier cabinets. According to the utility model, two-pulse wave high-power pulsating current power supply with adjustable duty ratio can be provided for the electrolytic tanks. Thus, it is ensured that the electrolytic tanks operate in the most efficient electrolytic state, and energy consumption for electrolysis is greatly reduced.
Description
Technical field
The utility model relates to a kind of electrolysis power of metallurgy industry, particularly a kind of two pulse high-power arteries and veins stream power supplys of the three-phase for electrolysis tank.
Background technology
The industry utilizations such as current electrolysis manganese, electrolytic zinc be many pulse waves DC electrolysis technology, 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 rectification directly accesses electrolytic tank electrolysis.There is the more problem of not high, the per ton electrolytic manganese consume electric power of Faradaic current efficiency in DC electrolysis manganese, and its direct current consumption can reach 5800 ~ 6100 kWh/t.
According to pertinent literature, show, in the pulse electrolysis process, electrolytic efficiency is subject 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 the mass transfer in solution and ion diffusion are relatively easy, have strengthened ion migration and nucleation rate, have improved current efficiency.And, after pulse frequency surpasses 100 Hz, while further increasing pulse frequency, rate controlling step is that electric charge shifts, diffusion into the surface is restricted, and metal ion can not be diffused near negative electrode in time, thereby has affected the current efficiency of electro-deposition.So, while adopting pulse current that certain duty ratio, frequency are 100Hz to carry out the metals such as electrolytic manganese, zinc, the efficiency of Faradaic current is higher, power consumption is lower.Do not have the powerful pulse power at China's nonferrous metallurgy electrolysis industry at present, seriously restricted the raising of the electrolytic etching of metal industry Faradaic current efficiency such as manganese, zinc.
The utility model content
In order to solve the problems of the technologies described above, the utility model provides the three-phase for electrolysis tank that a kind of efficiency is high, energy consumption is low two pulse high-power arteries and veins stream power supplys.
The utility model solves the technical scheme that its technical problem adopts: a kind of two pulse high-power arteries and veins stream power supplys of the three-phase for electrolysis tank, comprise three-phase regulating transformer, three-phase induction filter rectification transformer, the three-phase induction filter, the cophase counter parallel connection alternating current bus bar, 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, the cophase counter parallel connection alternating current bus bar is connected in series successively, the three-phase induction filter is connected with three-phase induction filter rectification transformer, the output of cophase counter parallel connection alternating current bus bar is connected 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, the positive leading-out terminal of every group 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, with the positive pole of electrolysis tank, with negative pole, be connected respectively again, general controller is connected with the control end of single-phase rectifier cabinet.
The above-mentioned two pulse high-power arteries and veins stream power supplys of the three-phase for electrolysis tank, described three-phase induction filter rectification transformer is the three-phase multi winding transformer, comprise high pressure winding, secondary low-voltage valve side winding and Filter Winding one time, two delta windings that low pressure valve side winding is cophase counter parallel connection, each phase winding of low pressure valve side winding connects separately the fullwave rectification bridge of single-phase rectifier cabinet, Filter Winding is connected with the three-phase induction filter, and Filter Winding is zero impedance.
The above-mentioned two pulse high-power arteries and veins stream power supplys of the three-phase for electrolysis tank, described three-phase induction filter rectification transformer is the three-phase multi winding transformer, comprise the high pressure winding one time, 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 respectively 8 alternating current bus bars, the alternating current bus bar of same phase adopts the cophase counter parallel connection cabling, be connected respectively to 4 fullwave rectification bridges of single-phase rectifier cabinet, Filter Winding is connected with the three-phase induction filter, Filter Winding is zero impedance.
The above-mentioned two pulse high-power arteries and veins stream power supplys of the three-phase for electrolysis tank, described three-phase induction filter is comprised of reactor and capacitor series.
Technique effect of the present utility model is:
(1) the utility model is by each independent order phase all-wave controllable rectifier bridge mutually of transformer load winding, and for electrolysis tank provides two pulse high-power duty ratios adjustable arteries and veins stream power supply, the harmonic content of power supply is less than three-phase bridge circuit.
(2) in the utility model, alternating current bus bar and DC master row adopt the cophase counter parallel connection structure, have greatly weakened the eddy current loss that large electric current produces busbar, and the electromagnetic interference that space is produced.
(3) the utility model will be responded 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, realized harmonic wave and idlely suppressed nearby and compensate, having 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 in the utility model guarantee that direct currents output equates, thereby guarantee the three-phase equilibrium power supply, and according to optimum duty ratio, calculate the optimum Trigger Angle of each rectifier cabinet, export to rectifier cabinet, thereby guarantee that electric tank working is at efficient electrolysis state.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
In accompanying drawing: 1-three-phase regulating transformer, 2-three-phase induction filter rectification transformer, 3-three-phase induction filter, 4-cophase counter parallel connection alternating current bus bar, 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 utility model comprises three-phase regulating transformer 1, three-phase induction filter rectification transformer 2, three-phase induction filter 3, cophase counter parallel connection alternating current bus bar 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 alternating current bus bar 4 is connected in series successively, three-phase induction filter 3 is connected with three-phase induction filter rectification transformer 2, three outputs of cophase counter parallel connection alternating current bus bar 4 are connected with the input of single-phase rectifier cabinet 6 ~ 8 respectively, the output of single-phase rectifier cabinet 6 ~ 8 is connected with the both positive and negative polarity of electrolysis tank 13 ~ 15 through cophase counter parallel connection DC master row 9 ~ 12, the general controller of control system 5 is connected 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 high pressure winding, secondary low-voltage valve side winding and Filter Winding one time, 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 outgoing line 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 connects the fullwave rectification bridge in rectifier cabinet by alternating current bus bar separately, thereby the arteries and veins stream power supply that the generation frequency is 100Hz, the duty ratio of arteries and veins stream can be regulated by the thyristor Trigger Angle.
A cathode rectifier busbar of each single-phase rectifier cabinet and the cathode bus bar of another rectifier bridge, closely near cabling, form cophase counter parallel connection, 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, with the output of another group DC master row, in parallel (anode is in parallel with anode 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, then with the positive pole of electrolysis tank, with negative pole, be connected respectively.
, just can make three rectifier cabinet direct current command value of general controller equate, thereby make its three rectifier cabinet institute on-loads maintenance balances under basically identical prerequisite in the specification that guarantees three electrolysis tanks.
The general controller of control system 5 flows according to arteries and veins the optimum trigger angle that optimum duty ratio is calculated three rectifier cabinet thyristors.Native system is because three electrolysis tank specifications are consistent, so can make the value of three rectifier cabinet Trigger Angles of general controller equate or 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 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 winding in twos, makes it to meet the requirement that equivalent impedance is zero.
Two delta windings that the low pressure valve side winding of whole change is cophase counter parallel connection, 6 leading-out terminals of two delta windings connect respectively 6 alternating current bus bars.The alternating current bus bar of same phase adopts the cophase counter parallel connection cabling, is connected respectively to 6 fullwave rectification bridges.The Filter Winding of whole change 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, according to optimum duty ratio, calculate the optimum Trigger Angle of each rectifier cabinet.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 to copper bar.The single-phase rectifier cabinet contains two groups of cophase counter parallel connection single-phase full wave controllable rectifier bridges, and its frequency is fixed, and duty ratio is adjustable.The arteries and veins stream of each serial cophase counter parallel connection is electrically connected to copper bar and is connected 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 utility model.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 respectively 8 alternating current bus bars, the alternating current bus bar of same phase adopts the cophase counter parallel connection cabling, is connected respectively to 4 fullwave rectification bridges of single-phase rectifier cabinet 6 ~ 7.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with claims.
Claims (4)
1. the two pulse high-power arteries and veins of the three-phase for electrolysis tank flow power supplys, it is characterized in that: comprise three-phase regulating transformer, three-phase induction filter rectification transformer, the three-phase induction filter, the cophase counter parallel connection alternating current bus bar, 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, the cophase counter parallel connection alternating current bus bar is connected in series successively, the three-phase induction filter is connected with three-phase induction filter rectification transformer, the output of cophase counter parallel connection alternating current bus bar is connected 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, the positive leading-out terminal of every group 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, with the positive pole of electrolysis tank, with negative pole, be connected respectively again, general controller is connected with the control end of single-phase rectifier cabinet.
2. the two pulse high-power arteries and veins of the three-phase for electrolysis tank according to claim 1 flow power supplys, it is characterized in that: described three-phase induction filter rectification transformer is the three-phase multi winding transformer, comprise high pressure winding, secondary low-voltage valve side winding and Filter Winding one time, two delta windings that low pressure valve side winding is cophase counter parallel connection, each phase winding of low pressure valve side winding connects separately the fullwave rectification bridge of single-phase rectifier cabinet, Filter Winding is connected with the three-phase induction filter, and Filter Winding is zero impedance.
3. the two pulse high-power arteries and veins of the three-phase for electrolysis tank according to claim 1 flow power supplys, and it is characterized in that: described three-phase induction filter is comprised of reactor and capacitor series.
4. the two pulse high-power arteries and veins of the three-phase for electrolysis tank according to claim 1 flow power supplys, it is characterized in that: described three-phase induction filter rectification transformer is the three-phase multi winding transformer, comprise the high pressure winding one time, 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 respectively 8 alternating current bus bars, the alternating current bus bar of same phase adopts the cophase counter parallel connection cabling, be connected respectively to 4 fullwave rectification bridges of single-phase rectifier cabinet, Filter Winding is connected with the three-phase induction filter, Filter Winding is zero impedance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203796485U CN203326918U (en) | 2013-06-28 | 2013-06-28 | Three-phase two-pulse wave high-power pulsating current power supply for electrolytic tanks |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013203796485U CN203326918U (en) | 2013-06-28 | 2013-06-28 | Three-phase two-pulse wave high-power pulsating current power supply for electrolytic tanks |
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| CN203326918U true CN203326918U (en) | 2013-12-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296919A (en) * | 2013-06-28 | 2013-09-11 | 中铝华大科技股份有限公司 | Three-phase two-pulse-wave high-power pulse current power supply for electrolytic cells and power supplying method |
-
2013
- 2013-06-28 CN CN2013203796485U patent/CN203326918U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296919A (en) * | 2013-06-28 | 2013-09-11 | 中铝华大科技股份有限公司 | Three-phase two-pulse-wave high-power pulse current power supply for electrolytic cells and power supplying method |
| CN103296919B (en) * | 2013-06-28 | 2017-06-06 | 中铝华大科技股份有限公司 | 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171208 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 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 |