CN101048534A - Electric circuit of an electrolyzer with bipolar electrodes and electrolysis installation with bipolar electrodes - Google Patents
Electric circuit of an electrolyzer with bipolar electrodes and electrolysis installation with bipolar electrodes Download PDFInfo
- Publication number
- CN101048534A CN101048534A CNA2005800188151A CN200580018815A CN101048534A CN 101048534 A CN101048534 A CN 101048534A CN A2005800188151 A CNA2005800188151 A CN A2005800188151A CN 200580018815 A CN200580018815 A CN 200580018815A CN 101048534 A CN101048534 A CN 101048534A
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- China
- Prior art keywords
- electrolyzer
- circuit
- bus
- wall
- bipolar electrode
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
- C25B9/66—Electric inter-cell connections including jumper switches
Abstract
Electric circuit of an electrolyzer with substantially vertical bipolar electrodes, comprising at least one busbar (9, 10, 14) that is placed below and/or above the electrolyzer (3). Electrolysis installation comprising such a circuit and at least one electrolyzer (3) with vertical bipolar electrodes.
Description
Technical field
The present invention relates to have the electrolyzer of bipolar electrode, especially relate to the power supply of this electrolyzer.
The present invention is specifically related to be used for rectified current power is offered the circuit of the electrolyzer with bipolar electrode.
Background technology
The electrolyzer with bipolar electrode with the power supply of DC power supply is usually used in the electrochemical industry.This electrolyzer is usually used in electrolytic sodium chloride aqueous solution, to produce chlorine, aqueous sodium hydroxide solution or sodium chlorate aqueous solution.
Consider the high current density that is adopted in the electrolyzer with bipolar electrode, generally use the rectification AC power supplies to replace the DC power supply.Pulse appears in rectification AC power supplies usually, and the frequency of described pulse and amplitude depend on employed rectifier.Therefore, the electromagnetic field that the rectification AC power supplies is produced may produce induced current, and described induced current can be stronger in some industrial application, especially produces continuously under the situation with bipolar cell of chlorine and aqueous sodium hydroxide solution being used for.
Under extreme conditions, it also is well-known that high electromagnetic field can have a negative impact to people's organism, and those that are produced by the rectification AC power supplies especially are because they are easy to generate induced current.Therefore importantly, take measures the personnel in the safeguard industries proximity of devices zone, perhaps reduce electromagnetic intensity.And set standard in this respect, require the electromagnetic intensity in the restriction industrial site.In these standards, European standard 89/391/EEC is especially strict.
Summary of the invention
The circuit that the purpose of this invention is to provide new design is to provide high current to the industrial cell with bipolar electrode.
Specific purposes of the present invention provide a kind of circuit, use this circuit, and the electromagnetic field in the described electrolyzer adjacent domain is reduced to enough low value to satisfy above-mentioned European standard.
Even more specifically, the objective of the invention is to reduce magneticstrength along the place, walkway that the sidewall of the electrolyzer with bipolar electrode is provided with.
Therefore, the present invention relates to have the circuit of the electrolyzer of bipolar electrode, comprise that at least one is positioned at the electric current line of described electrolyzer outside, it is characterized in that described electric current line comprises that at least one is positioned at the bus of described electrolyzer below and/or top.
The present invention more specifically relates to the electrolyzer of the bipolar electrode with perpendicular.This electrolyzer is well-known in this area, and they are widely used in the especially electrolysis of the aqueous solution of sodium-chlor of metal halide.These electrolyzers are generally become by a series of metal frame shapes, each metal frame all comprises bipolar electrode, these frameworks are as in pressure filter and put (Moderne Chlor-alkali technology, volume 3, SCI, 1986,13 chapters, " Operating experience gained with the bipolar Hoechst-Uhdemembrane cell "; Modern Chlor-alkali Technology, volume 4, SCI, 1990,20 chapters, " Hoechst-Uhde single element membrane electrolyzer:concept-experiences-applications ").Described framework has square or rectangular profile usually, make when they as in pressure filter and when putting, they form upper wall, lower wall or base wall and two sidewalls of described electrolyzer.Described electrolyzer with the power supply of DC power supply, perhaps, more generally, is powered with the rectification AC power supplies usually.DC or rectification AC power supplies turn back to another end of DC source or rectifier then from the end of DC source or the rectifier bipolar electrode of flowing through via the electric current line that is positioned at the electrolyzer outside.According to the present invention, described return electric current line comprises that at least one is positioned at the bus of electrolyzer below or top.Depend on and the structure of electrolyzer and the relevant consideration of method of assembling bipolar electrode for the selection of below that bus is placed electrolyzer or top.As the variation scheme, above-mentioned electric current line can comprise the bus that is positioned at the electrolyzer below and another bus that is positioned at the electrolyzer top.According to another variation scheme, described electrolyzer can also comprise a plurality of buses that are positioned at the electrolyzer below and/or a plurality of buses that are positioned at the electrolyzer top.In the practice,, for above-mentioned electric current line, preferably do not comprise the bus of electrolyzer top usually based on the consideration relevant with the I﹠ M of electrolyzer.
Have been found that, under the identical situation of all other conditions, significantly having reduced to have the electromagnetic field in the electrolyzer adjacent domain of bipolar electrode in a circuit according to the invention, mainly is along its side-walls, especially usually along the sidewall setting and be on the employed walkway of operation and maintenance personnel.In the following discussion, word " in the adjacent domain of electrolyzer " is meant along the space at cell sidewall place, is set to the employed walkway of operation and maintenance personnel of electrolyzer herein usually.
In in a circuit according to the invention, the material of bus is not to be used to limit key factor of the present invention.It is made by copper, aluminum or aluminum alloy usually.
In in a circuit according to the invention, the profile of described bus cross section is not to be used to limit key factor of the present invention.It can for example be foursquare a, orthogonal, circular or polygonal.
In first and specific embodiment in a circuit according to the invention, bus has rectangular profile, and determines that its direction makes that its big limit is substantially horizontal.Observe, under the identical situation of all other conditions, the selection level is positioned at the bus of the square-section of electrolyzer below and/or top, makes the electromagnetic intensity in the electrolyzer adjacent domain reduce to minimum.Also observe, if the thickness of bus is littler with the ratio of width, reducing of the interior electromagnetic field of electrolyzer adjacent domain is just bigger.In the practice, therefore preferably with metal plate as bus.As the variation scheme, can use a plurality of metal plates, be positioned at the below and/or the top of electrolyzer side by side.
Further observe, under the identical situation of all other conditions, when making bus more approach the wall of electrolyzer, the electromagnetic intensity in the electrolyzer adjacent domain reduces.
Therefore, in second embodiment in a circuit according to the invention, the adjacent cell wall of bus is arranged.In this embodiment of the present invention, described cell wall is lower wall or base wall or its upper wall of electrolyzer, and this depends on that bus is positioned at the below or the top of electrolyzer.In this embodiment of the present invention, word " adjacent cell wall " is meant that the distance between this wall and the bus is not more than five times (preferred three times) of bus thickness.Preferably, this distance is no more than the thickness of bus.
In the preferred variant of above-mentioned second embodiment of the present invention, bus is attached to the described wall of electrolyzer.In this preferred variant of the present invention, bus is metal plate advantageously, and one in the big limit of described metal plate is attached to described wall, and only the electrical isolation thickness by necessity separates with this wall.Described metal plate can be attached to the part surface of described wall.For metal plate, preferably be attached to the whole basically surface of described wall.
In the 3rd specific embodiments of the present invention, said wires also comprises two additional busbars, and they are two sidewalls layouts of adjacent electrolyzer respectively.In this embodiment of the present invention, word " adjacent " is equal to the definition of this word that provides in above-mentioned second embodiment.Under the identical situation of all other conditions, the existence of additional busbars has reduced the electromagnetic intensity in the electrolyzer adjacent domain.
In the 3rd embodiment according to the present invention, described additional busbars can have the Any shape compatible with the structure of electrolyzer.They can for example have square, rectangle, Polygons, ellipse or circular contour.Described additional busbars can also have identical profile or different profiles, and they can have identical size or different sizes.Yet in practice, preferably described additional busbars has identical profile and identical size.Also preferred additional busbars has rectangular profile, and they are attached to two sidewalls of electrolyzer respectively by their big limit.
In the 3rd embodiment of the invention described above, each size of additional busbars and be positioned at electrolyzer below and/or each size of the bus of top or each bus according to distribution of current to the method for all these buses is determined.In the practice, the strength of current of recommending to be arranged in the strength of current of bus of electrolyzer below and/or top and each additional busbars differs and is no more than 30% (preferably being no more than 20%).Preferably, the neutralize strength of current of each additional busbars of the bus that is arranged in electrolyzer below and/or top is substantially the same.
In especially favourable the 4th embodiment of the present invention, settle the return current line of circuit, so that produce electromagnetic field about the intermediate vertical face substantial symmetry of described electrolyzer.In this embodiment, this purpose (producing the electromagnetic field about the intermediate vertical face substantial symmetry of described electrolyzer) realizes by the size and the position of this bus of abundant setting or each bus.The selection of optimum size and optimum position is specifically determined according to the shape and size of electrolyzer by those skilled in the art.In the practice, this result usually can be by realizing a described bus or a plurality of bus intermediate vertical about electrolyzer in the face of claiming to arrange.
Significantly reduce to have the interior electromagnetic field of electrolyzer adjacent domain of bipolar electrode in a circuit according to the invention.
Therefore, the invention still further relates to use and reduce the interior electromagnetic field of electrolyzer adjacent domain in a circuit according to the invention.
Specifically be applied to for example alkali metal halide electrolyzer of the aqueous solution of sodium-chlor especially of the continuous electrolysis water or the aqueous solution in a circuit according to the invention.Therefore, in a preferred embodiment of the invention, electrolyzer comprises the pipeline that is used for introducing the pipeline of aqueous electrolyte continuously and is used for removing continuously aqueous electrolyte.
Particularly, the present invention is applied to the electrolyzer of the production sodium chlorate by the aqueous solution of electrolytic sodium chloride.The present invention specifically is applied to the electrolyzer that the aqueous solution by electrolytic sodium chloride is produced chlorine and aqueous sodium hydroxide solution, and these electrolyzers comprise the selective permeation positively charged ion and are inserted in film between the bipolar electrode.
Any electrolyzer of the electrolyzer that is applied in a circuit according to the invention to comprise that at least one has the vertical bipolar electrode.
Therefore, the invention further relates to and comprise that at least one has the electrolyzer of the electrolyzer of bipolar electrode, it is connected in a circuit according to the invention.Can comprise a plurality of electrolyzers that one electrolyzer or electricity are connected in series according to equipment of the present invention.
The present invention is specifically related to the purposes that this equipment is used to produce chlorine and aqueous sodium hydroxide solution.
Description of drawings
From the following description of accompanying drawing, concrete feature of the present invention and details will become clear, and these accompanying drawings are represented specific embodiments more of the present invention.
Fig. 1 is illustrated in the overall plan view of the electrolyzer before the present invention.
Fig. 2 represents the schematic longitudinal elevation view according to the specific embodiments of electrolyzer of the present invention.
Vertical cross-section on the III-III face of Fig. 3 presentation graphs 2.
Fig. 4 is the synoptic diagram that is similar to Fig. 3 according to another embodiment of equipment of the present invention.
Fig. 5 is the preferred variant of the equipment among Fig. 4.In these figure, identical Reference numeral refers to identical parts.
Embodiment
Electrolyzer shown in Figure 1 is before the present invention, and is and inconsistent with it.It comprises three electrolyzers 1,2 and 3, is designed for by the aqueous solution of electrolytic sodium chloride and produces chlorine, hydrogen and sodium hydroxide.Electrolyzer 1,2 and 3 belongs to the type of vertical bipolar electrode.They by vertical rectangle framework 4 and put and form, each framework comprises vertical bipolar electrode (not shown).Framework 4 is as in pressure filter and put.The cationic film of selective permeation is inserted between the framework 4 to form alternative anode and cathode compartment.Electrolyzer 1,2 and 3 anolyte compartment are communicated with the pipeline (not shown) of introducing sodium chloride aqueous solution continuously.They also are communicated with the manifold (not shown) of continuous removal chlorine.Electrolyzer 1,2 and 3 cathode compartment are communicated with two manifold (not shown), and described two manifolds are respectively applied for continuous extraction hydrogen and aqueous sodium hydroxide solution.
In the electrolyzer of Fig. 1, return current line 7 is made up of the long bus that the longitudinal side wall along electrolyzer 1,2 and 3 extends.
In electrolyzer shown in Figure 1, three electrolyzers 1,2 and 3 each can for example comprise 30-40 basic electrolysis cells, and described power supply comprises for example 520V DC rectifier, can carry the electric current of 8-20kA.The surface-area that depends on electrode, this can produce 2.5-6kV/m
2The anodic current density of annode area.But these numerical value are the scope that does not limit the present invention and following claim thereof of expression property purely.
When double-pole switch was closed, rectified current flowed into electrolyzer 1,2 and 3 in succession, by bipolar electrode, and flowed into the line of return 7.This electric current generates an electromagnetic field in the surrounding environment of equipment.
Fig. 2 is consistent with the present invention with the equipment shown in 3.In these figure, only show electrolyzer 3.In the equipment of Fig. 2 and 3, return current line 7 comprises two buses 9 and 10 of base wall 11 belows that are positioned at electrolyzer 3. Bus 9 and 10 is metal strip things of prismatic, and described metal is the good conductor (preferably copper or aluminium) of electricity.These buses are arranged in each side of the intermediate vertical face X-X of electrolyzer symmetrically. Bus 9 and 10 also is arranged in the adjacent domain of base wall 11 of electrolyzer 3. Bus 9 and 10 has the effect that reduces the electromagnetic intensity on the walkway 12 with mode layout shown in Figure 3, and extend along the sidewall 13 of electrolyzer 3 on described walkway 12, and is that electrolysis groove maintenance personnel uses.
Under the identical situation of all other conditions, if find that bus 9 and 10 more approaches midplane X-X and base wall 11, the electromagnetic intensity on the walkway 12 reduces just manyly so.Also observe, the thickness of the electromagnetic intensity on the walkway 12 by reducing bus 9 and 10 reduces with the ratio of width.Therefore preferably flat board or horizontal band are used for bus 9 and 10.
In the embodiment depicted in fig. 4, return electric current line 7 comprises the base wall 11 that is attached to electrolyzer and metal plate that covers this whole wall basically or band 14.
In the equipment of Fig. 5, electric current line 7 comprises the metal plate 14 on the base wall 11 that is applied to electrolyzer 3 and two additional busbars 15 of arranging along two sidewalls 13 of electrolyzer 3 respectively and 16.Two additional busbars 15 and 16 advantageously are attached to the metal plate or the band of sidewall 13.
Claims (12)
1. the circuit that has the electrolyzer of bipolar electrode comprises the electric current line that at least one places the electrolyzer outside, it is characterized in that electric current line (7) comprises that at least one is positioned at the bus (9,10,14) of electrolyzer (3) below and/or top.
2. according to the circuit of claim 1, it is characterized in that bus (14) is attached to the wall (11) of electrolyzer (3).
3. according to the circuit of claim 2, it is characterized in that described wall is the base wall (11) of described electrolyzer.
4. according to each circuit in claim 2 and 3, it is characterized in that described bus is metal plate (14), one in the big limit of described metal plate (14) is connected to described wall (11).
5. according to each circuit in claim 3 and 4, it is characterized in that described bus (14) is attached to the whole surface of described wall (11) basically.
6. according to each circuit among the claim 1-5, it is characterized in that described electric wire (7) further comprises two additional busbars (15,16), they are attached to two sidewalls (13) of described electrolyzer (3) respectively.
7. according to each circuit among the claim 1-6, it is characterized in that settling described electric wire (7), so that produce electromagnetic field about intermediate vertical face (X-X) substantial symmetry of described electrolyzer.
8. according to each circuit among the claim 1-7, it is characterized in that described electrolyzer comprises the pipeline that is used for introducing the pipeline of aqueous electrolyte continuously and is used for removing continuously aqueous electrolyte.
9. circuit according to Claim 8 is characterized in that described electrolyzer comprises the selective permeation positively charged ion and is inserted in film between the bipolar electrode.
10. according to the purposes of each circuit among the claim 1-9, be used to reduce the interior electromagnetic field of described electrolyzer adjacent domain.
Have the electrolyzer of the electrolyzer of bipolar electrode (3) 11. comprise at least one, be connected to according to each circuit (9,10,14,15,16) among the claim 1-9.
12. the purposes according to the equipment of aforementioned claim is used to produce chlorine and aqueous sodium hydroxide solution.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0406278 | 2004-06-10 | ||
| FR0406278A FR2871479B1 (en) | 2004-06-10 | 2004-06-10 | ELECTRICAL CIRCUIT OF A BIPOLAR ELECTROLYSET ELECTRODES AND BIPOLAR ELECTROLYSIS ELECTROLYSIS INSTALLATION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101048534A true CN101048534A (en) | 2007-10-03 |
Family
ID=34946650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800188151A Pending CN101048534A (en) | 2004-06-10 | 2005-06-08 | Electric circuit of an electrolyzer with bipolar electrodes and electrolysis installation with bipolar electrodes |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20070205110A1 (en) |
| EP (1) | EP1769104A2 (en) |
| JP (1) | JP2008501864A (en) |
| CN (1) | CN101048534A (en) |
| AR (1) | AR052970A1 (en) |
| BR (1) | BRPI0511955A (en) |
| CA (1) | CA2568833A1 (en) |
| EA (1) | EA011603B1 (en) |
| FR (1) | FR2871479B1 (en) |
| WO (1) | WO2005121410A2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2882887B1 (en) * | 2005-03-01 | 2007-04-27 | Solvay | ELECTRIC CIRCUIT OF ELECTROLYSER AND METHOD FOR REDUCING ELECTROMAGNETIC FIELDS IN THE VICINITY OF THE ELECTROLYSER |
| US20080143189A1 (en) * | 2006-02-27 | 2008-06-19 | Solvay (Societe Anonyme) | Electrical Circuit Of An Electrolyzer And Method For Reducing The Electromagnetic Fields In The Vicinity Of The Electrolyzer |
| US10106901B2 (en) | 2015-02-03 | 2018-10-23 | Edward E. Johnson | Scalable energy demand system for the production of hydrogen |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE600583C (en) * | 1932-03-24 | 1934-07-27 | Hans Niederreither Dipl Ing | Decomposers, in particular electrolytic pressure decomposers, for generating hydrogen and oxygen under high pressure |
| GB1305892A (en) * | 1968-11-08 | 1973-02-07 | ||
| BE802182A (en) * | 1973-07-11 | 1973-11-05 | Solvay | VERTICAL ELECTROLYSER |
| DE2448187A1 (en) * | 1974-10-09 | 1976-04-22 | Hooker Chemicals Plastics Corp | ELECTROLYSIS CELL |
| DE2448194A1 (en) * | 1974-10-09 | 1976-04-22 | Hooker Chemicals Plastics Corp | ELECTROLYSIS CELL PLANT |
| NO139829C (en) * | 1977-10-19 | 1979-05-16 | Ardal Og Sunndal Verk | DEVICE FOR COMPENSATION OF HARMFUL MAGNETIC EFFECT BETWEEN TWO OR MORE ROWS OF TRANSFERRED ELECTROLYSIS OILS FOR MELTING ELECTROLYTIC MANUFACTURE OF ALUMINUM |
| US5240569A (en) * | 1991-09-30 | 1993-08-31 | Rockwell International Corporation | Magnetically enhanced electrolysis cell system |
| DE59607944D1 (en) * | 1996-01-26 | 2001-11-22 | Alusuisse Tech & Man Ag | Rail arrangement for electrolysis cells |
| FR2882887B1 (en) * | 2005-03-01 | 2007-04-27 | Solvay | ELECTRIC CIRCUIT OF ELECTROLYSER AND METHOD FOR REDUCING ELECTROMAGNETIC FIELDS IN THE VICINITY OF THE ELECTROLYSER |
| US20080143189A1 (en) * | 2006-02-27 | 2008-06-19 | Solvay (Societe Anonyme) | Electrical Circuit Of An Electrolyzer And Method For Reducing The Electromagnetic Fields In The Vicinity Of The Electrolyzer |
-
2004
- 2004-06-10 FR FR0406278A patent/FR2871479B1/en not_active Expired - Fee Related
-
2005
- 2005-06-08 BR BRPI0511955-3A patent/BRPI0511955A/en not_active IP Right Cessation
- 2005-06-08 EA EA200700005A patent/EA011603B1/en not_active IP Right Cessation
- 2005-06-08 CN CNA2005800188151A patent/CN101048534A/en active Pending
- 2005-06-08 EP EP05752677A patent/EP1769104A2/en not_active Withdrawn
- 2005-06-08 US US11/628,988 patent/US20070205110A1/en not_active Abandoned
- 2005-06-08 CA CA002568833A patent/CA2568833A1/en not_active Abandoned
- 2005-06-08 WO PCT/EP2005/052653 patent/WO2005121410A2/en active Application Filing
- 2005-06-08 JP JP2007526429A patent/JP2008501864A/en active Pending
- 2005-06-13 AR ARP050102384A patent/AR052970A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005121410A2 (en) | 2005-12-22 |
| EP1769104A2 (en) | 2007-04-04 |
| AR052970A1 (en) | 2007-04-18 |
| US20070205110A1 (en) | 2007-09-06 |
| EA011603B1 (en) | 2009-04-28 |
| JP2008501864A (en) | 2008-01-24 |
| EA200700005A1 (en) | 2007-08-31 |
| BRPI0511955A (en) | 2008-01-22 |
| CA2568833A1 (en) | 2005-12-22 |
| WO2005121410A3 (en) | 2007-03-08 |
| FR2871479A1 (en) | 2005-12-16 |
| FR2871479B1 (en) | 2006-08-11 |
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Open date: 20071003 |