CN203625484U - Graphite cathode specially used for ionic exchange membrane electrolysis cell - Google Patents
Graphite cathode specially used for ionic exchange membrane electrolysis cell Download PDFInfo
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- CN203625484U CN203625484U CN201320719733.1U CN201320719733U CN203625484U CN 203625484 U CN203625484 U CN 203625484U CN 201320719733 U CN201320719733 U CN 201320719733U CN 203625484 U CN203625484 U CN 203625484U
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Abstract
The utility model relates to a graphite cathode specially used for an ionic exchange membrane electrolysis cell. The graphite cathode specially used for the ionic exchange membrane electrolysis cell comprises a graphite plate, wherein a circulating water channel is arranged in the front of the graphite plate, and a deflection channel is arranged in the back of the graphite plate; a discharging hole and a water outlet hole are arranged above the left end face of the graphite plate, a feeding hole and a water inlet hole are arranged below the right end face of the graphite plate, the discharging hole is communicated with the upper part of the deflection channel, the feeding hole is communicated with the lower part of the deflection channel, the water outlet hole is communicated with the upper part of the circulating water channel, and the water inlet hole is communicated with the lower part of the circulating water channel; an annular sealing groove is arranged in the front of the graphite plate, and the annular sealing groove is arranged at the periphery of the circulating water channel. The graphite cathode specially used for the ionic exchange membrane electrolysis cell is provided with a cooling water circulation structure and a cathode feed liquid deflection structure, so that temperature of a graphite cathode, a graphite anode and feed liquid can be reduced, circulation and uniform distribution of cathode feed liquid can also be sped up, escape of hydrogen can be facilitated, service lives of the graphite cathode and the graphite anode are prolonged, and current efficiency and product quality are improved.
Description
Technical field:
The utility model relates to a kind of ion-exchange membrane electrolyzer special graphite negative electrode, is mainly used in the negative electrode of the electrolyzer of Process for Electrosynthesis of Ammonium Persulfate.
Background technology
The major equipment that ammonium persulphate is produced is electrolyzer, and electrolyzer is mainly made up of anode, barrier film and negative electrode, and at present, the electric tank cathode of domestic use has two kinds, and one is lead electrode, and another kind is graphite cathode.Lead, due to excellent processing characteristics, can be processed into different shape, is convenient to the effusion of the cooling and hydrogen of negative electrode, thereby in the electrolyzer of producing at ammonium persulphate, is widely used in the material of negative electrode.But, plumbous erosion resistance and graphite-phase ratio, the lead ion that corrosion produces easily causes membrane efficiency to decline, and is not suitable for using in ion-exchange membrane electrolyzer.Graphite has good erosion resistance and lower hydrogen-evolution overpotential, is more satisfactory cathode material.But existing graphite cathode does not all have the Cooling Design of graphite self, mostly be on tabular graphite and punch, be conducive to the effusion of hydrogen, the graphite cathode electrode temperature of this structure is high, causes power consumption high, the shortcoming such as work-ing life of graphite is short.
Summary of the invention:
The technical problem that the utility model solves: design a kind of ion-exchange membrane electrolyzer special graphite negative electrode, there is cooling water circulation structure and negative electrode feed liquid flow-guiding structure, not only can give graphite cathode, anode and feed liquid cooling, and can also accelerate the circulation of negative electrode feed liquid and be uniformly distributed, and be conducive to the effusion of hydrogen, extend the work-ing life of graphite cathode and anode, improve electrolytic efficiency and quality product.
Technical solution of the present utility model: a kind of ion-exchange membrane electrolyzer special graphite negative electrode, comprise graphite cake, be shaped with circulating water channel before described graphite cake, after be shaped with diversion trench; The top, left side of described graphite cake is shaped with discharge hole and posticum, the below, right side of graphite cake is shaped with feed port and prosopyle, and discharge hole is communicated with the top of diversion trench, feed port is communicated with the bottom of diversion trench, posticum is communicated with the top of circulating water channel, and prosopyle is communicated with the bottom of circulating water channel; Before described graphite cake, be shaped with annular seal groove, and annular seal groove is positioned at circulating water channel around.
Described circulating water channel is made up of upper level trough, the vertical slots being arranged in parallel and lower level trough; Described upper level trough is communicated with the upper end parallel connection of the vertical slots being arranged in parallel, and the lower end of the vertical slots being arranged in parallel is communicated with lower level trough is in parallel by the longitudinal stria being arranged in parallel respectively; Described posticum is communicated with the left end of upper level trough, and prosopyle is communicated with the right-hand member of lower level trough.
Described diversion trench is " work " shape.
Described graphite cake is fine grained graphite plate or recrystallized graphite plate or high-density graphite plate.
The diagonal position of described graphite cake has positive plate pickup groove, and the both ends of the surface of graphite cake have fixed orifices.
The advantage the utlity model has and effect:
1, have cooling water circulation structure, water flowing can be given negative electrode graphite and positive plate cooling, extends the work-ing life of graphite cathode and positive plate.
2, there is negative electrode feed liquid flow-guiding structure, can accelerate the circulation of negative electrode feed liquid and be uniformly distributed, and be conducive to the effusion of hydrogen, improve electrolytic efficiency and quality product.
3, graphite cake adopts fine grained graphite, recrystallized graphite or high-density graphite.Conduct electricity very well, physical strength is high, corrosion-resistant, and long service life can reduce the expense of maintenance.
Accompanying drawing explanation
Fig. 1 is structural front view of the present utility model,
Fig. 2 is structure rear view of the present utility model,
Fig. 3 is structure sectional view of the present utility model,
Fig. 4 is left side of the present utility model structural representation,
Fig. 5 is right side of the present utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing 1,2,3,4,5, a kind of embodiment of the present utility model is described.
A kind of ion-exchange membrane electrolyzer special graphite negative electrode, comprises graphite cake 9, and described graphite cake 9 is shaped with circulating water channel 6 above, after be shaped with " work " shape diversion trench 1; The top, left side of described graphite cake 9 is shaped with discharge hole 2 and posticum 3, the below, right side of graphite cake 9 is shaped with feed port 10 and prosopyle 8, and discharge hole 2 is communicated with the top of diversion trench 1, feed port 10 is communicated with the bottom of diversion trench 1, posticum 3 is communicated with the top of circulating water channel 6, and prosopyle 8 is communicated with the bottom of circulating water channel 6; Described graphite cake 9 is shaped with annular seal groove 7 above, and annular seal groove 7 is positioned at circulating water channel 6 around.
Described circulating water channel 6 is made up of upper level trough 2, the vertical slots 13 being arranged in parallel and lower level trough 14; Described upper level trough 12 is communicated with the upper end parallel connection of the vertical slots 13 being arranged in parallel, and the lower end of the vertical slots 13 being arranged in parallel is communicated with by the longitudinal stria 11 and 14 parallel connections of lower level trough that are arranged in parallel respectively; Described posticum 3 is communicated with the left end of upper level trough 12, and prosopyle 8 is communicated with the right-hand member of lower level trough 14.
Described graphite cake 9 is fine grained graphite plate or fine crystallization graphite cake or high-density graphite plate.The diagonal position of described graphite cake 9 has positive plate pickup groove 5, and the both ends of the surface of graphite cake 9 have the fixed orifices 4 of fixing graphite cathode.
When use, embedding sealing bar in annular seal groove 7, positive plate by pickup groove 5 be fixed on graphite cake 9 before, positive plate and negative electrode graphite cake are sealed by sealed strip, between the two, form circulating cooling water tank.Ionic membrane is fixed between two graphite cakes 9, makes to form cathode compartment between ionic membrane and negative electrode graphite cake, between ionic membrane and positive plate, form anolyte compartment.The fixed orifices 4 that the both ends of the surface of graphite cake 9 have is connected with fixed support by screw, then by fixed support, electrode is fixed on the support of electrolyzer, and discharge hole 2, posticum 3, feed port 10, prosopyle 8 are connected to the work of getting final product with respective line.
When work, negative electrode feed liquid enters the negative electrode feed liquid passage forming between ionic membrane and negative electrode graphite cake from feed port 10, discharge from discharge hole 2.In the negative electrode feed liquid process of circulation, " work " shape diversion trench 1 has the circulation of the negative electrode of acceleration feed liquid and equally distributed effect, and then is conducive to the effusion of hydrogen, improves electrolytic efficiency and quality product.
When cooling, water coolant enters lower level trough 14 from prosopyle 8, then by entering the vertical slots 13 being arranged in parallel after longitudinal stria 11 uniformly distributings that are arranged in parallel, enters level trough 12 after being full of water in vertical slots 13 again, finally discharges from posticum 3.Above-mentioned design has guaranteed water coolant filling evenly, and then has realized anticathode graphite and evenly cooling object of positive plate, further extends the work-ing life of graphite cathode and positive plate.
Above-described embodiment, is preferred embodiment of the present utility model, is not used for limiting the utility model practical range, thus all equivalent variations of being done with content described in the utility model claim, within all should being included in the utility model claim scope.
Claims (5)
1. an ion-exchange membrane electrolyzer special graphite negative electrode, comprises graphite cake (9), it is characterized in that: described graphite cake (9) is shaped with circulating water channel (6) above, after be shaped with diversion trench (1); The top, left side of described graphite cake (9) is shaped with discharge hole (2) and posticum (3), the below, right side of graphite cake (9) is shaped with feed port (10) and prosopyle (8), and discharge hole (2) is communicated with the top of diversion trench (1), feed port (10) is communicated with the bottom of diversion trench (1), posticum (3) is communicated with the top of circulating water channel (6), and prosopyle (8) are communicated with the bottom of circulating water channel (6); Described graphite cake (9) is shaped with annular seal groove (7) above, and annular seal groove (7) is positioned at circulating water channel (6) around.
2. ion-exchange membrane electrolyzer special graphite negative electrode according to claim 1, is characterized in that: described circulating water channel (6) is made up of upper level trough (12), the vertical slots (13) being arranged in parallel and lower level trough (14); Described upper level trough (12) is communicated with the upper end parallel connection of the vertical slots being arranged in parallel (13), and the lower end of the vertical slots (13) being arranged in parallel is communicated with lower level trough (14) is in parallel by the longitudinal stria (11) being arranged in parallel respectively; Described posticum (3) is communicated with the left end of upper level trough (12), and prosopyle (8) are communicated with the right-hand member of lower level trough (14).
3. ion-exchange membrane electrolyzer special graphite negative electrode according to claim 1 and 2, is characterized in that: described diversion trench (1) is " work " shape.
4. ion-exchange membrane electrolyzer special graphite negative electrode according to claim 3, is characterized in that: described graphite cake (9) is fine grained graphite plate or recrystallized graphite plate or high-density graphite plate.
5. ion-exchange membrane electrolyzer special graphite negative electrode according to claim 4, is characterized in that: the diagonal position of described graphite cake (9) has positive plate pickup groove (5), the both ends of the surface of graphite cake (9) have fixed orifices (4).
Priority Applications (1)
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CN201320719733.1U CN203625484U (en) | 2013-11-12 | 2013-11-12 | Graphite cathode specially used for ionic exchange membrane electrolysis cell |
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CN201320719733.1U CN203625484U (en) | 2013-11-12 | 2013-11-12 | Graphite cathode specially used for ionic exchange membrane electrolysis cell |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103614738A (en) * | 2013-11-12 | 2014-03-05 | 陕西宝化科技有限责任公司 | Special graphite cathode for ionic-membrane electrolysis tank |
CN110938841A (en) * | 2019-12-19 | 2020-03-31 | 新邵辰州锑业有限责任公司 | Novel plate-shaped graphite anode |
-
2013
- 2013-11-12 CN CN201320719733.1U patent/CN203625484U/en not_active Withdrawn - After Issue
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103614738A (en) * | 2013-11-12 | 2014-03-05 | 陕西宝化科技有限责任公司 | Special graphite cathode for ionic-membrane electrolysis tank |
CN103614738B (en) * | 2013-11-12 | 2015-03-11 | 陕西宝化科技有限责任公司 | Special graphite cathode for ionic-membrane electrolysis tank |
CN110938841A (en) * | 2019-12-19 | 2020-03-31 | 新邵辰州锑业有限责任公司 | Novel plate-shaped graphite anode |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20150311 |
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RGAV | Abandon patent right to avoid regrant |