WO2010099671A1 - Bain électrolytique à fort champ électrique stabilisé et courant constant, et dispositif électrolytique associé - Google Patents

Bain électrolytique à fort champ électrique stabilisé et courant constant, et dispositif électrolytique associé Download PDF

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Publication number
WO2010099671A1
WO2010099671A1 PCT/CN2009/071168 CN2009071168W WO2010099671A1 WO 2010099671 A1 WO2010099671 A1 WO 2010099671A1 CN 2009071168 W CN2009071168 W CN 2009071168W WO 2010099671 A1 WO2010099671 A1 WO 2010099671A1
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WO
WIPO (PCT)
Prior art keywords
plate
high voltage
constant current
cathode plate
electrolytic cell
Prior art date
Application number
PCT/CN2009/071168
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English (en)
Chinese (zh)
Inventor
郭建国
毛星原
Original Assignee
Guo Jianguo
Mao Xingyuan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guo Jianguo, Mao Xingyuan filed Critical Guo Jianguo
Publication of WO2010099671A1 publication Critical patent/WO2010099671A1/fr

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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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells

Definitions

  • the invention relates to the field of application of electrolysis, in particular to a stable high electric field constant current electrolytic cell and an electrolysis device thereof.
  • Electrolysis is widely used in the metallurgical industry, such as extracting metals (electrolytic metallurgy) or purifying metals (electrolytic purification) from ores or compounds, and depositing metal (electroplating) from solution.
  • the metal sodium and chlorine are produced by electrolytically dissolving sodium chloride; the aqueous solution of electrolytic sodium chloride produces sodium hydroxide and chlorine. Electrolyzed water produces hydrogen and oxygen.
  • the electrolysis of water is the decomposition of water into H2 (g) and 02 (g) under the action of an external electric field. Electrolysis is a very powerful means of promoting redox reactions, and many difficult redox reactions can be achieved by electrolysis.
  • Weak electrolyte For example, in the process of water electrolysis, the anode and cathode need a large potential difference, Off loses electrons at the anode, and is oxidized to oxygen to release; H + gets electrons at the cathode and is reduced to hydrogen. The oxygen and hydrogen obtained are the products of the water electrolysis process.
  • the structure of the cartridge, for the medium and strong electrolyte can apply the minimum potential and control current on the anode or cathode.
  • the electrolysis reaction can be carried out at a high current efficiency, and the amount of the substance reacted on the electrode can be obtained by measuring the amount of electricity (coulomb number) consumed in the electrolysis reaction.
  • 100% current efficiency means that only the main reaction occurs on the electrode during electrolysis, and no side reaction occurs.
  • the main factors affecting the current efficiency are: the electrode reaction of the solvent, the reaction of impurities in the electrolyte on the electrode, the electrode reaction of the soluble gas in the solution, and the reaction of the electrode itself.
  • a method of applying a minimum potential and controlling current to an anode or cathode for a weak electrolyte For example, in the electrolysis process of water, the cathodes and cathodes need a large potential difference, and the consumption of electric energy is electrolytic chemical formula:
  • the present invention provides a "stabilized strong electric field constant current electrolytic cell and its electrolysis device".
  • the stable strong electric field constant current electrolytic cell and the electrolysis device thereof can improve the working efficiency of the electrolysis process and reduce the heat loss therein, especially for the weak electrolyte.
  • the electrolysis efficiency is higher in the solution analysis.
  • a stable strong electric field constant current electrolytic cell which is provided with an electrolyte in an electrolytic cell, and is provided with a low-pressure cathode plate and a low-voltage anode plate respectively connected to a low-voltage DC power source, and a separator or an ion is arranged between the cathode plate and the anode plate
  • the exchange membrane is characterized in that: the electrolytic cell is further provided with a high voltage power supply system, and the high voltage power supply system is respectively connected with the high voltage cathode plate and the high voltage anode plate; the high voltage cathode plate and the low pressure cathode plate form a composite cathode
  • the outer surface of the high voltage cathode plate in the composite cathode plate is provided with an insulating layer, so that the high voltage cathode plate and the low pressure cathode plate, the high voltage cathode plate and the electrolyte are electrically isolated; the outer surface of the high voltage anode plate An insulating
  • the high voltage cathode plate and the high voltage anode plate, wherein the low pressure cathode plate and the low pressure anode plate, can be set in the following form:
  • the high-voltage cathode plate and the high-voltage anode plate are respectively wrapped in respective insulating layers, and the low-pressure cathode plate and the low-pressure anode plate are respectively wrapped on the outer sides of the respective insulating layers;
  • the high-voltage cathode plate and the high-voltage anode plate are respectively wrapped in respective insulating layers, and the low-voltage cathode plate and the low-voltage anode plate respectively wrap the respective insulating layers, or may be between two high-voltage electrode plates. The inside; or the outside of the two high voltage electrode plates.
  • the solution of the present invention is: stable high electric field constant current electrolytic cell mainly consists of two mutually isolated high voltage power supply and low voltage constant current power supply; two-electrode cathode and anode plates formed by electrically isolated composite electrode plates; ion exchange separator; The composition of the trough.
  • Two isolated high-voltage power supplies and a low-voltage constant-current power supply system are provided by a high-voltage power supply system to provide a stable and strong electric field between the anode and cathode plates of the electrolytic isolation composite electrode in the electrolytic cell and the electrolyte.
  • Another low-voltage constant current power supply system mainly provides electrolytic isolation in the electrolytic cell.
  • a low voltage constant current is formed between the anode and cathode plates of the electrode and the electrolyte.
  • the electrically isolated composite electrode plate is an electrically isolated electrolytic plate that provides two power supply potentials.
  • the high voltage and high voltage power supply according to the present invention is selected according to the size of the electrolytic cell, the distance between the anode and the anode plate, and the high voltage power supply voltage range between tens of volts and a DC voltage of several kilovolts;
  • the low voltage and low voltage current source of the present invention is selected according to the size of the electrolytic cell and the mass of the reaction substance on the electrode, so that the current range is less than 1 ampere and thousands of ampere currents.
  • An electrolysis apparatus for preparing hydrogen and oxygen by the electrolytic method consisting of the above-mentioned stable strong electric field constant current electrolytic cell the structure is: the composite cathode plate and the composite anode plate, and the composite cathode plate and A separator or ion exchange membrane between the composite anode plates constitutes a group of electrolytic cells; and a plurality of said electrolytic cells are collectively disposed in an electrolyte tank to constitute the electrolysis device of the present invention.
  • a stable strong electric field constant current electrolytic cell and an electrolysis device thereof use two mutually isolated high voltage power sources and a low voltage constant current power source; and a plurality of sets of electrically isolated composite electrode plates form a double electrode anode and cathode. Plate; multiple sets of ion exchange separators; electrolysis unit of the electrolytic cell group.
  • Fig. 7 The decomposition voltage and the deposition potential of a stable strong electric field constant current electrolytic cell and its electrolysis device and a single low voltage power supply electrolysis device according to the present invention are shown in Fig. 7.
  • the invention can improve the working efficiency of the electrolysis process and reduce the heat loss therein, especially in the electrolysis analysis of the weak electrolyte.
  • Figure 7 illustrates: The present invention greatly reduces the decomposition voltage of the electrolysis process.
  • the electrolytic cell according to the present invention is provided with an electrolyte which is a weak electrolyte which is a weakly conductive aqueous solution or a compound in a molten state such as a weak acid, a weak base or water.
  • the rate of water electrolysis is proportional to conductivity.
  • Water molecules are electric dipole molecules. Water is a weak electrolyte under weak electric field conditions. Electric dipoles are elongated and deformed under strong electric field conditions. Electric dipole phase enhancement , conductivity is improved.
  • Figure 1 is a schematic diagram of the principle of the existing electrolytic cell
  • FIG. 2 is a schematic view of the principle of the electrolytic cell of the present invention.
  • Figure 3-1 Structure diagram of a stable high electric field constant current electrolytic cell device
  • Figure 3-2 is a cross-sectional view taken along line B-B of Figure 3-1;
  • Figure 3-3 is a plan view of Figure 3-1;
  • Figure 4-1 is a cross-sectional view taken along line A-A of Figure 3-3;
  • Figure 4-2 is a cross-sectional view taken along line C-C of Figure 3-1;
  • Figure 5-1 is a structural diagram of an electrically isolated composite electrode plate for a stable high electric field constant current electrolytic cell
  • Figure 5-2 is a left side view of Figure 5-1;
  • Figure 5-3 is a cross-sectional view taken along line D-D of Figure 5-1;
  • Figure 5-4 is a plan view of Figure 5-1;
  • Figure 6 is a working principle diagram of a stable high electric field constant current electrolytic cell device
  • Fig. 7 is a graph showing the decomposition voltage of a constant-current electric field constant current electrolytic cell device.
  • Embodiment 1 a stable strong electric field constant current electrolytic cell and an electrolysis device thereof, as shown in FIG. 2, a stable strong electric field constant current electrolytic cell is composed of a low voltage constant current power source 2.1, a cathode electrically isolated composite electrode plate 2.2, and electrolysis The tank 2.3, the anode electrically isolated composite electrode plate 2.4, the ion exchange separator 2.5, the high voltage electric field negative potential pole 2.6, the high voltage electric field positive potential pole 2.7, the stable high voltage power supply 2.8 main components.
  • the cathode electrical isolation composite electrode plate 2.2 and the anode electrical isolation composite electrode plate 2.4 are formed by combining three layers of a surface metal electrolytic layer, an intermediate insulating layer and a central metal thin plate.
  • the surface metal electrolytic layers of the anode and cathode isolation composite electrode plates are respectively connected to the negative electrode and the positive electrode of the low voltage constant current power source 2.1.
  • the high-voltage electric field negative potential pole 2.6 and the high-voltage electric field positive potential pole 2.7 of the central metal thin plate of the anode-isolated composite electrode plate are respectively connected to the negative electrode and the positive electrode of the high-voltage stable power supply 2.8.
  • the working principle of the embodiment is: a weak electrolyte in the electrolytic cell, and a high-voltage electric field potential pole connected to the center of the anode and the anode plate respectively in the high-voltage stable power source 2.8, so that a high-voltage stable strong electric field is formed between the anode and the anode plate and the electrolyte. While the weak electrolyte is in a high-voltage stable strong electric field, the electric dipole molecules constitute an electrode arrangement, which improves the conductivity of the weak electrolyte.
  • the low-voltage constant current power supply 2.1 is respectively connected to the low potential poles on the surface of the anode and the anode plate, so that the low-potential electrode on the surface of the anode and the anode plate and the electrolyte can form a low-voltage, stable large-current electrolytic analysis, which should be The rate of water electrolysis is proportional to conductivity.
  • FIG. 3-1 ⁇ 3-3, Figure 4-1, 4-2 Plastic cover 1, plastic groove 2, plastic gas separator 3, silica gel spacer 4, ion exchange separator 5, galvanic isolation composite
  • the electrode plate 6 (including the cathode electrically isolating composite electrode plate 2.2 and the anode electrically isolating composite electrode plate 2.4 respectively) constitutes an electrolytic cell, and the tank is filled with a water and electrolyte 8; the electrolytic cell is provided with a water inlet screw hole 7 and a hydrogen gas outlet tube; 9.
  • Water discharge screw cap 10 oxygen outlet pipe 11, constant current power supply negative potential connector 12, high voltage power supply negative potential connector 13, high voltage power positive potential connector 14, constant current power positive potential connector 15, hydrogen channel 16.
  • Oxygen channel 17 isolated composite electrode plate constant current negative potential connecting rod 18, isolated composite electrode plate high voltage power supply negative potential connecting rod 19, hydrogen outlet hole 20, oxygen outlet hole 21, isolated composite electrode plate constant current positive potential connection
  • the rod 22, the isolated composite electrode plate high voltage power positive potential connecting rod 23, the water level valve hole 24, the float valve stem 25, and the water level line 26 together constitute a hydrogen oxygen water electrolysis device.
  • the main invention features of the stable strong electric field constant current electrolytic cell and the electrolysis device thereof in the embodiment are as follows:
  • the electrolytic cell adopts a high-voltage power source and a low-voltage constant current power source which are electrically isolated from each other, and respectively supply the respective electrically isolated composite electrode negative and negative plates in an orderly manner.
  • each of the electrically isolated composite electrode between the anode and the anode and the electrolyte form a strong electric field and a low voltage electrolytic constant current.
  • H + gets electrons at the cathode, It is reduced to hydrogen and discharged, and is output from the hydrogen outlet pipe 9 through the hydrogen outlet hole 20 and the hydrogen gas passage 16.
  • OH- loses electrons at the anode, is oxidized to oxygen, and is output through the oxygen outlet pipe 21 through the oxygen outlet hole 21 and the oxygen passage 17.
  • the water level valve hole 24, the float valve stem 25 and the water level line 26 constitute an automatic water supply device.
  • the float valve stem 25 descends synchronously, at which time the water level valve hole 24 opens and begins to replenish the electrolytic tank.
  • the float valve 4 dry 25 is synchronously raised to close the water level valve hole 24, and the water supply is stopped.
  • the structure of the electrically isolated composite electrode plate 6 in the stable strong electric field constant current electrolytic cell and the electrolysis device thereof of the embodiment satisfies the requirements of the electrical isolation work for accessing the high voltage power at the low voltage potential
  • the main structural components are: an electro-isolated composite electrode plate composed of an outer metal electrolysis surface 6.1 of an electrode plate, an intermediate insulating layer 6.2 of an electrode plate, and a central conductive metal layer 6.3 of an electrode plate.
  • a structure of an electrically isolated composite electrode plate 6 of a stable high electric field constant current electrolytic cell and an electrolysis device thereof has a low voltage constant current power supply potential connection terminal and a high voltage power source electric field potential connection terminal.
  • the intermediate insulation layer of the electrode plate 6.2 can be made of PTFE or other high insulation materials.
  • the working principle of the present invention "a stable strong electric field constant current electrolytic cell and its electrolysis device” is as follows: a plurality of electrically isolated composite electrode plates 6 in the electrolytic cell, mutually staggered parallel potentials, respectively Connect the positive and negative poles of the high voltage power supply and the low voltage constant current power supply.
  • the electro-isolation composite electrode plate 6 is electrically isolated from each other to form a cathode and an anode plate, and a strong electric field and a low voltage constant current are formed in the cathode and the anode plate and the electrolyte, which is advantageous for the weak electrolyte to improve the conductivity and increase the electrolysis gas output rate. , to reduce the heat loss of the electrolytic cell, to achieve the purpose of saving electrical energy consumption.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

L'invention porte sur un bain électrolytique à fort champ électrique stabilisé et courant constant. Ledit bain est constitué d'un électrolyte alimenté par un courant CC à basse tension relié à une plaque anode à basse tension et à une plaque cathode à basse tension, d'un écran ou d'une membrane échangeuse d'ions étant disposés entre l'anode et la cathode. Le bain est de plus alimenté par un courant à haute tension relié à une plaque anode à haute tension et à une plaque cathode à haute tension. La cathode à haute tension et la cathode à basse tension forment une plaque cathode combinée. La surface extérieure de la plaque cathode à haute tension est revêtue d'une couche isolante qui la sépare électriquement de la plaque cathode à basse tension et de l'électrolyte. La surface extérieure de la plaque anode à haute tension est revêtue d'une couche isolante qui la sépare électriquement de la plaque anode à basse tension et de l'électrolyte.
PCT/CN2009/071168 2009-03-03 2009-04-04 Bain électrolytique à fort champ électrique stabilisé et courant constant, et dispositif électrolytique associé WO2010099671A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200910025631A CN101532146A (zh) 2009-03-03 2009-03-03 稳定强电场恒电流电解池及其电解装置
CN200910025631.8 2009-03-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109972157A (zh) * 2019-03-26 2019-07-05 化州市联合民生轮业有限公司 一种快速制造布朗气体的器体

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CN106698685A (zh) * 2016-12-05 2017-05-24 郭金宝 复合强电场效应型电化学水处理装置及除垢方法
CN108178252B (zh) * 2018-01-22 2024-03-22 浙江工业大学 一种四电极双电解系统及采用该系统处理难降解有机废水方法
CN113104940B (zh) * 2021-05-31 2023-05-12 海南泛莱特科技有限公司 一种行波共振处理水中电解质的装置
CN116065176B (zh) * 2021-10-29 2024-04-05 中国石油化工股份有限公司 交流电直接供能的电解装置和系统
CN114277392B (zh) * 2021-12-23 2023-10-24 四川大学华西医院 一种具有离子陷阱的电解装置、电解方法和电镀方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2492514Y (zh) * 2001-04-30 2002-05-22 吴凤君 一种能够生成还原水的保温杯
CN1450207A (zh) * 2002-04-05 2003-10-22 视动自动化科技股份有限公司 电场电子流解偶电镀装置及其控制方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2492514Y (zh) * 2001-04-30 2002-05-22 吴凤君 一种能够生成还原水的保温杯
CN1450207A (zh) * 2002-04-05 2003-10-22 视动自动化科技股份有限公司 电场电子流解偶电镀装置及其控制方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109972157A (zh) * 2019-03-26 2019-07-05 化州市联合民生轮业有限公司 一种快速制造布朗气体的器体

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