CN201999996U - Experimental chlor-alkali ionic membrane electrolytic cell - Google Patents
Experimental chlor-alkali ionic membrane electrolytic cell Download PDFInfo
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- CN201999996U CN201999996U CN201120048017.6U CN201120048017U CN201999996U CN 201999996 U CN201999996 U CN 201999996U CN 201120048017 U CN201120048017 U CN 201120048017U CN 201999996 U CN201999996 U CN 201999996U
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Abstract
The utility model relates to an experimental chlor-alkali ionic membrane electrolytic cell, which comprises a cathode chamber groove, a cathode gasket, a cathode electrode screen plate, a cathode gasket, an ionic membrane, an anode gasket, an anode electrode screen plate, an anode gasket and an anode chamber groove which are sequentially, hermetically and integrally connected through flanges. A hydrogen and alkali liquor outlet and a pure water inlet are arranged on the side surface of the cathode chamber groove and are respectively communicated with a cathode chamber. A light saline water and chlorine outlet, a secondary refined saline water inlet, a thermometer socket and a temperature measuring point socket are arranged on the anode chamber groove. A titanium heating tube is arranged in an anode chamber. Rectifier power supply interfaces are arranged on the cathode electrode screen plate and the anode electrode screen plate and are respectively connected with the cathode and the anode of a rectifier power supply. The ionic membrane electrolytic cell uses an electrochemical method to electrolyze sodium chloride and potassium chloride to produce gas and alkali, is simple and easy to control, is convenient to operate and can be used for the rapid testing of ionic membrane electrodes and ironic membranes.
Description
Technical field
The utility model relates to a kind of ion-exchange membrane electrolyzer, relates to a kind of acyclic type experiment type chlor-alkali electrolysis with ion-exchange film slot device specifically.
Background technology
China's ionic membrane method caustic soda development is very rapid, and China chlor-alkali enterprise successively introduces multinomial high and new technology from developed country, and the chlor-alkali technology of China is greatly improved.China introduces advanced ionic membrane method alkali making technology from world-famous company, develop ion-exchange membrane electrolysis technology rapidly, mercury process caustic soda and part graphite anode diaphragm process caustic soda have thoroughly been eliminated, promote and optimized the product structure of China's chlorine industry greatly, promoted developing rapidly of related industries.Ion-exchange membrane electrolyzer is as modern chlor-alkali industry advanced person's electrolyzer, and with easy to operate, energy-saving and cost-reducing, characteristics such as product purity height are widely used.
The patent document of existing type of production ion-exchange membrane electrolyzer has: publication number CN1306102 discloses a kind of monopolar ion membrane electrolyzer, CN2459329 discloses that a kind of bipolar type natural-circulation ion-exchange membrane electrolyzer, CN1407137 disclose a kind of bipolar type natural-circulation ion-exchange membrane electrolyzer, CN201106069, CN201128760 disclose film pole distance multi-pole natural-circulating electrolytic tank with ion film, and these patent documents designs are the type of production ion-exchange membrane electrolyzer.Yet no matter be the research chlor-alkali also or the anion membrane electrolytic tank electrode performance all needs small-sized electrolytic cell assembly and experimentizes, the present relevant report that the small ion membrane electrolyser of experiment type is not arranged as yet with the ionic membrane performance.
Summary of the invention
At the deficiencies in the prior art, the utility model relates to a kind of experiment type chlor-alkali ion-exchange membrane electrolyzer.
Summary of the invention
The utility model experiment type chlor-alkali ion-exchange membrane electrolyzer is formed a complete unit groove by several unit groove parts, is used for saturated sodium-chloride water solution and produces chlorine, hydrogen and caustic soda, or be used for saturated potassium chloride solution and produce chlorine, hydrogen and KOH.Unit groove is separated into anode electrolysis chamber and catholyte chamber with ion-exchange membrane, is that a kind of electrochemical electrolysis sodium-chlor, Repone K of utilizing is to produce gas and alkaline acyclic type chlor-alkali electrolysis with ion-exchange film slot device.
Detailed Description Of The Invention
The technical solution of the utility model is as follows:
Experiment type chlor-alkali ion-exchange membrane electrolyzer comprises cathode compartment groove, negative electrode pad, cathode electrode web plate, negative electrode pad, ionic membrane, anode pad, anode electrode web plate, anode pad and anolyte compartment's groove, is connected in one by flange seal successively.Cathode compartment groove side is provided with the outlet of hydrogen and alkali lye and pure water and enters the mouth and is communicated with cathode compartment respectively, and anolyte compartment's groove is provided with light salt brine and chlorine outlet, secondary refining salt water inlet, thermometer socket, point for measuring temperature socket; The anolyte compartment is built-in with the titanium heating tube.Be equipped with the rectifier power source interface on cathode electrode web plate, the anode electrode web plate, be connected with negative pole, the positive pole of rectifier power source respectively.
Above-mentioned ionic membrane is selected from the chlor-alkali that can buy in market commodity ion-exchange membrane, also can make by oneself by prior art, is preferably perfluorinated sulfonic acid-carboxylic acid composite ionic membrane, referring to CN101811359A.
Above-mentioned all negative electrode pads, anode pad all preferably adopt ethylene propylene diene monomer (EPDM) material.
Above-mentioned cathode electrode web plate is to be welded in the titanium rigid frame by the titanium metal net that is coated with activated coating to be made.Applying active coating material is palladium or rhodium precious metal material, gets final product by existing known technology.
Above-mentioned anode electrode web plate is to be welded in nickel or the stainless steel rigid frame by the nickel wire netting that is coated with activated coating to be made.Applying active coating material is palladium or rhodium precious metal material, gets final product by existing known technology.
All be welded with the copper rhinarium that can connect the rectifier power source line on the framework of above-mentioned cathode electrode web plate, anode electrode web plate, the rectifier power source interface is arranged on the copper rhinarium.
Be respectively anolyte compartment and cathode compartment in cathode compartment groove and the cathode compartment groove, the volume of anolyte compartment and cathode compartment volumetric ratio are at 50-10: in 1 scope.The utility model experiment type chlor-alkali ion-exchange membrane electrolyzer anolyte compartment volume is enough big, and has heating and temperature controlling device, and with the easy control that keeps electrolyzer temperature and constant, cathode compartment groove volume is correspondingly as far as possible little for this reason.
Above-mentioned cathode compartment groove is with stainless steel plate or nickel plate welding production, and anolyte compartment's groove is with titanium plate welding production.
Heating tube in the above-mentioned anolyte compartment adopts the titanium heating tube, reaching the rot-resistant function, but life-time service.
The utility model experiment type chlor-alkali ion-exchange membrane electrolyzer, form a complete unit groove by several unit groove parts, unit groove is separated into anode and catholyte chamber with ion-exchange membrane, limit the tank room net sectional area by the electrode network useful area, be arranged alternately pad, metal electrode web plate, pad and ionic membrane between tank room and the tank room.Tank room (comprising cathode compartment and anolyte compartment) section area is not less than the electrode network useful area, and preferred tank room section area equals the electrode network useful area.
The corrosion-resistant plate that the preferred titanium plate of anolyte compartment's framework of experiment type ionic membrane unit electrolytic bath of the present utility model is made, the cathode compartment framework is selected from nickel plate or stainless steel plate welding or is stamped to form, and also can adopt synthetic glass polymethylmethacrylate (PMMA) or polytetrafluoroethylmaterial material to be processed into.Antianode chamber, cathode compartment material requirements have certain rigidity and have more flat trim, guarantee whole rigidity and sealing function.
The utility model intermediate ion film unit groove helps the gas in the electrolytic process and the natural circulation of electrolytic solution, makes electrolytic condition homogenizing, stabilization in the tank room.This experiment type ion-exchange membrane electrolyzer is simple and easy to control, and is easy to operate, can be used for the quick test of ionic membrane electrode, the quick test of ionic membrane, comprises the mensuration of current density-bath voltage relation, current efficiency, water transmission coefficient etc.
The utility model experiment type electrolyzer can be operated under the following conditions: current density: 1-6KA/m
2Anode solution concentration: the NaCl of 175-305 gram/L or KCl solution; Cathode liquid concentration: with the solution of corresponding 24-35wt%NaOH of anode or 20-32wt%KOH; Service temperature: 65-95 ℃.
The utility model experiment type electrolyzer has solved economic, durable problem.The rigidity titanium that adopts and nickel plate guarantee the electrolyzer use properties, have certain rigidity, economical, anticorrosion.The utility model electrolyzer advance concentrated flow body control, go out the control of groove fluidic, aspects such as gas-liquid is separated, toxic gas processing can be by this area professional and technical personnel with the simple and easy solution of public technology.Utilize point for measuring temperature (temperature sensor) control heating tube whether switch on to reach the technology of controlling anolyte compartment's temperature and belong to public technology.
The utility model is compared with existing type of production ion-exchange membrane electrolyzer, has independently electrolyzer heating and temperature controlling device, is easy to temperature controlling and stable; Each assembly installation, operation, convenient disassembly; This device can fully satisfy the needs of experimental study, comprises the quick test that can be used for the ionic membrane electrode performance, the quick examination of ionic membrane performance, comprises the mensuration of current density-bath voltage relation, current efficiency, water transmission coefficient etc.
Description of drawings
Fig. 1 is an ion-exchange membrane electrolyzer decomposition texture synoptic diagram.
Fig. 2 is the ion-exchange membrane electrolyzer overall schematic.
Fig. 3 is the cathode can structural representation.3L-cathode compartment groove vertical view; 3R-cathode compartment groove plan view.
Fig. 4 is an anode electrode web plate structural representation.
Wherein, 1-cathode compartment groove; 1A-hydrogen and alkali lye outlet; 1B-pure water inlet; The 1C-cathode compartment; 2-negative electrode pad; 3-cathode electrode web plate; 3A-negative electrode rectifier power source interface nose; 4-negative electrode pad; The 5-ionic membrane; 6-anode pad;
7-anode electrode web plate, 7A-anode rectification power interface nose, 7B-connecting hole, 7C-web plate framework, 7D-electrode network, 7E-flange connecting hole; 8-anode pad; 9-anolyte compartment groove, 9A-light salt brine and chlorine outlet, 9B-secondary refining salt water inlet, 9C-thermometer socket, 9D-point for measuring temperature socket, 9E-titanium heating tube, 9F-anolyte compartment, 9G-heating tube external power source interface.
Cathode electrode web plate structure is identical with anode electrode web plate structure, but the material therefor difference.
Embodiment
Further specify below in conjunction with drawings and Examples.
Embodiment 1:
Experiment type chlor-alkali ion-exchange membrane electrolyzer, structure are shown in Fig. 1-4, and it comprises cathode compartment groove 1 and anolyte compartment's groove 9, and cathode compartment groove 1 side is provided with hydrogen and alkali lye outlet 1A is connected cathode compartment 1C respectively with pure water inlet 1B.Be negative electrode pad 2, cathode electrode web plate 3, negative electrode pad 4, ionic membrane 5, anode pad 6, anode electrode web plate 7, anode pad 8 successively between cathode compartment groove 1 and the anolyte compartment's groove 9, be sealedly connected on together by bolt 10 usefulness flanges, cathode compartment groove and anolyte compartment's groove are become one.Anolyte compartment's groove 9 is provided with light salt brine and chlorine exports 9A, secondary refining salt water inlet 9B, thermometer socket 9C, point for measuring temperature socket 9D; The built-in titanium heating tube of the 9F of anolyte compartment 9E, there is power interface 9G the outside.All be welded with the copper rhinarium on cathode electrode web plate, the anode electrode web plate as interface nose 3A, 7A, on the copper rhinarium connecting hole arranged, be connected with positive pole with the rectifier power source negative pole respectively.
The effective electrolysis area of electrolyzer is 50cm
2, cathode compartment groove 1 adopts the thick stainless steel welding production of 3mm, and anolyte compartment's groove 9 adopts the thick titanium plate of 3mm welding production.Cathode compartment 1C volume 25mL, the 9F of anolyte compartment volume 800mL.The thick titanium plate of anode electrode web plate 7 usefulness 1mm is framework 7C, welding titanium-matrix electrode web plate 7D in the middle of the framework.Cathodic electricity polar net pole plate is identical with anode construction, but the material therefor difference: do framework with the thick stainless steel plate of 1mm, the Ni-based electrode network of welding band palladium activated coating in the middle of the framework.Negative electrode pad 2,4 and anode pad 6,8 all adopt terpolymer EP rubber to make.Ionic membrane 5 is selected Eastern Mountain DF988 perfluorinated sulfonic acid-carboxylic acid composite ionic membrane for use.The built-in titanium heating tube of the 9F of anolyte compartment power is 150 watts, and point for measuring temperature socket 9D inserts the Pt100 thermopair, and connects corresponding temperature controller.
Present embodiment experiment type chlor-alkali ion-exchange membrane electrolyzer electrolytic condition: current density: 3.5KA/m
2Anode solution concentration: the NaCl solution of 200 gram/L; Cathode liquid concentration: 32%NaOH solution; Service temperature: 84-86 ℃.
Embodiment 2: experiment type chlor-alkali ion-exchange membrane electrolyzer, and structure is as described in the embodiment 1, and different is:
The effective electrolysis area of electrolyzer is 120cm
2, the cathode compartment groove adopts PMMA (polymethylmethacrylate) synthetic glass to make, and anolyte compartment's groove adopts the thick titanium plate of 4mm welding production.Cathode compartment 1C volume 40mL, the 9F of anolyte compartment volume 1200mL.The thick titanium plate of anode electrode web plate 7 usefulness 1mm is framework 7C, welding titanium-matrix electrode web plate 7D in the middle of the framework.Cathodic electricity polar net pole plate is identical with anode construction, but the material therefor difference: do framework with the thick stainless steel plate of 1mm, the Ni-based electrode network of welding band palladium activated coating in the middle of the framework.Negative electrode pad 2,4 and anode pad 6,8 adopt terpolymer EP rubber to make.Ionic membrane 5 is selected N966 perfluorinated sulfonic acid-carboxylic acid composite ionic membrane for use.The built-in titanium heating tube of the 9F of anolyte compartment power is 200 watts, and point for measuring temperature socket 9D inserts the Pt100 thermopair, joins corresponding temperature controller.
Present embodiment experiment type chlor-alkali ion-exchange membrane electrolyzer electrolytic condition: current density: 3.0KA/m
2Anode solution concentration: the NaCl solution of 200 gram/L; Cathode liquid concentration: 30%NaOH solution; Service temperature: 84-86 ℃.
Embodiment 3: experiment type chlor-alkali ion-exchange membrane electrolyzer, and structure is as described in the embodiment 1, and different is:
The effective electrolysis area of electrolyzer is 120cm
2, the cathode compartment groove adopts polytetrafluoroethylmaterial material to be processed into, and anolyte compartment's groove adopts the thick titanium plate of 3mm welding production.Cathode compartment 1C volume 50mL, the 9F of anolyte compartment volume 1200mL.The thick titanium plate of anode electrode web plate 7 usefulness 1mm is framework 7C, welding titanium-matrix electrode web plate 7D in the middle of the framework.Cathodic electricity polar net pole plate is identical with anode construction, but the material therefor difference: do framework with the thick nickel plate of 1mm, the Ni-based electrode network of welding band palladium activated coating in the middle of the framework.Negative electrode pad 2,4 and anode pad 6,8 adopt terpolymer EP rubber to make.Ionic membrane 5 is selected F6801 perfluorinated sulfonic acid-carboxylic acid composite ionic membrane for use.The built-in titanium heating tube of the 9F of anolyte compartment power is 200 watts, and point for measuring temperature socket 9D inserts the Pt100 thermopair, joins corresponding temperature controller.
Present embodiment experiment type chlor-alkali ion-exchange membrane electrolyzer electrolytic condition: current density: 5.5KA/m
2Anode solution concentration: the NaC1 solution of 205 gram/L; Cathode liquid concentration: 32%NaOH solution; Service temperature: 84-86 ℃.
Embodiment 4: experiment type chlor-alkali ion-exchange membrane electrolyzer, and structure is as described in the embodiment 1, and different is:
The effective electrolysis area of electrolyzer is 80cm
2, the cathode compartment groove adopts the PMMA synthetic glass to make, and anode slot adopts the thick titanium plate of 4mm welding production.Cathode compartment 1C volume 30mL, the 9F of anolyte compartment volume 1400mL.The thick titanium plate of anode electrode web plate 7 usefulness 1mm is framework 7C, welding titanium-matrix electrode web plate 7D in the middle of the framework.Cathodic electricity polar net pole plate is identical with anode construction, but the material therefor difference: do framework with the thick stainless steel plate of 1mm, the Ni-based electrode network of welding band rhodium activated coating in the middle of the framework.Negative electrode pad 2,4 and anode pad 6,8 adopt terpolymer EP rubber to make.Ionic membrane 5 is selected perfluorinated sulfonic acid-carboxylic acid composite ionic membrane for use.The built-in titanium heating tube of the 9F of anolyte compartment power is 200 watts, and point for measuring temperature socket 9D inserts the Pt100 thermopair, joins corresponding temperature controller.
Present embodiment experiment type chlor-alkali ion-exchange membrane electrolyzer electrolytic condition: current density: 4.5KA/m
2Anode solution concentration: the KCl solution of 200 gram/L; Cathode liquid concentration: 30%KOH solution; Service temperature: 84-86 ℃.
This experiment type ion-exchange membrane electrolyzer is simple and easy to control, and is easy to operate, can be used for the quick test of ionic membrane electrode, the quick test of ionic membrane, comprises the mensuration of current density-bath voltage relation, current efficiency, water transmission coefficient etc.Concrete measuring method is the public technology of this area professional, also can consult related data and technical literature, repeats no more herein.
Claims (8)
1. experiment type chlor-alkali ion-exchange membrane electrolyzer, it is characterized in that comprising cathode compartment groove, negative electrode pad, cathode electrode web plate, negative electrode pad, ionic membrane, anode pad, anode electrode web plate, anode pad and anolyte compartment's groove, be connected in one by flange seal successively; Cathode compartment groove side is provided with the outlet of hydrogen and alkali lye and pure water and enters the mouth and is communicated with cathode compartment respectively, and anolyte compartment's groove is provided with light salt brine and chlorine outlet, secondary refining salt water inlet, thermometer socket, point for measuring temperature socket; The anolyte compartment is built-in with the titanium heating tube, is equipped with the rectifier power source interface on cathode electrode web plate, the anode electrode web plate, is connected with negative pole, the positive pole of rectifier power source respectively.
2. experiment type chlor-alkali ion-exchange membrane electrolyzer according to claim 1 is characterized in that described negative electrode pad, anode pad all adopt ethylene propylene diene monomer (EPDM) material.
3. experiment type chlor-alkali ion-exchange membrane electrolyzer according to claim 1 is characterized in that described cathode electrode web plate is to be welded in the titanium rigid frame by the titanium metal net that is coated with activated coating to be made.
4. experiment type chlor-alkali ion-exchange membrane electrolyzer according to claim 1 is characterized in that described anode electrode web plate is to be welded in nickel or the stainless steel rigid frame by the nickel wire netting that is coated with activated coating to be made.
5. experiment type chlor-alkali ion-exchange membrane electrolyzer according to claim 1 is characterized in that in cathode compartment groove and the cathode compartment groove it being respectively anolyte compartment and cathode compartment, and the volume of anolyte compartment and cathode compartment volumetric ratio are 50-10: 1.
6. experiment type chlor-alkali ion-exchange membrane electrolyzer according to claim 1 is characterized in that described cathode compartment groove is with stainless steel plate or nickel plate welding production.
7. experiment type chlor-alkali ion-exchange membrane electrolyzer according to claim 1 is characterized in that described cathode compartment groove makes of synthetic glass or tetrafluoroethylene.
8. experiment type chlor-alkali ion-exchange membrane electrolyzer according to claim 1 is characterized in that described anolyte compartment groove titanium plate welding production.
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| CN201120048017.6U CN201999996U (en) | 2011-02-25 | 2011-02-25 | Experimental chlor-alkali ionic membrane electrolytic cell |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134725A (en) * | 2011-02-25 | 2011-07-27 | 山东东岳高分子材料有限公司 | Experimental ion-exchange membrane electrolyzer for chlor-alkali production |
| CN102337558A (en) * | 2011-11-03 | 2012-02-01 | 北京化工大学 | Method for installing and sealing oxygen diffusion electrode of ionic membrane electrolytic cell |
| CN103103560A (en) * | 2012-12-13 | 2013-05-15 | 苏州新区化工节能设备厂 | Micropolar-distance ionic membrane electrolysis cell |
-
2011
- 2011-02-25 CN CN201120048017.6U patent/CN201999996U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134725A (en) * | 2011-02-25 | 2011-07-27 | 山东东岳高分子材料有限公司 | Experimental ion-exchange membrane electrolyzer for chlor-alkali production |
| CN102134725B (en) * | 2011-02-25 | 2012-11-14 | 山东东岳高分子材料有限公司 | Experimental ion-exchange membrane electrolyzer for chlor-alkali production |
| CN102337558A (en) * | 2011-11-03 | 2012-02-01 | 北京化工大学 | Method for installing and sealing oxygen diffusion electrode of ionic membrane electrolytic cell |
| CN103103560A (en) * | 2012-12-13 | 2013-05-15 | 苏州新区化工节能设备厂 | Micropolar-distance ionic membrane electrolysis cell |
| CN103103560B (en) * | 2012-12-13 | 2016-05-25 | 苏州赛斯德工程设备有限公司 | A kind of micro-polar distance ion membrane electrolysis bath |
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Granted publication date: 20111005 Effective date of abandoning: 20130227 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20111005 Effective date of abandoning: 20130227 |
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