CN110324918A - A kind of electrothermal high temperature electrode system - Google Patents
A kind of electrothermal high temperature electrode system Download PDFInfo
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- CN110324918A CN110324918A CN201910670314.5A CN201910670314A CN110324918A CN 110324918 A CN110324918 A CN 110324918A CN 201910670314 A CN201910670314 A CN 201910670314A CN 110324918 A CN110324918 A CN 110324918A
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- power supply
- heating wire
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- high temperature
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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
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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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
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
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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
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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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)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a kind of electrothermal high temperature electrode systems, it includes anode (1), cathode (2), the first DC power supply (3), the first heating wire (4), the second DC power supply (5), the second heating wire (6), third DC power supply (7), electrolyte (8) and electrolytic cell (9), its Anodic (1) is connected with the anode of third DC power supply (7), cathode (2) is connected with the anode of third DC power supply (7), and the first DC power supply (3) is connected with the first heating wire (4)；The first DC power supply parameter is matched with the first heating wire (4), constant voltage is exported according to the electric heating parameter of heating wire, so that heating wire keeps a certain temperature.It heats electrode section by merging electric heating system with electro-chemical systems, with electrothermal way, has the function that accelerate electrochemical reaction, improves electrochemical reaction efficiency.
Description
Technical field
The invention belongs to power technique fields, and in particular to a kind of electrothermal high temperature electrode system.
Background technique
In electrochemical applications, heating is a kind of ancillary technique means being commonly used, such as heated by electrodes is to utilize water
High heat resistance characteristic, directly convert electrical energy into thermal energy and generate a kind of technology of steam.Dielectric heating is to pass through electromagnetic field
Come what is realized, dielectric substance is put between two electrodes, the two electrodes are connected on a ultrasonic-frequency rotory generator；Electromagnetic field swashs
Molecular motion of material is sent out, so that material be made to generate heat.Electrode can generate biggish impact under full voltage, so in the prior art
Common electrodes preheating, it is to use low-voltage electrode is made to keep certain temperature, that is, consume in an inactive state
Electricity, this heating can substantially extend the service life of electrode, have the meaning more saved compared to replacement.Heated by electrodes is still answered
Resistance heating principle.
In current electrochemistry business application, hydrogen plant, which is passed through, prepares hydrogen by water decomposition reaction frequently with electrochemical process
System, electrolyte are high-concentration sodium hydroxide aqueous solution (such as 6mol/L), 80 DEG C of operating temperature or so.It, will in the course of work
Whole system is heated to 80 DEG C, all components in system, including electrolyte, electrolytic cell, electrode, all at 80 DEG C.The heating at this time
System has the following problems, first, temperature is limited by the boiling point of water, can only be to 100 DEG C；Second, the specific heat capacity of water is very high,
Need many heats and time that whole system is made to rise to certain temperature；Third, high temperature can corrode electrolytic cell, cause entire body
It is the serious reduction in service life；4th, the problems such as vapor causes System Design complicated.
To solve the above-mentioned problems, Grenoble, France Alps university scientific man Niether in 2018, C. report
A kind of magnetic force heating system for water system electrochemical reaction, this system only heat electrode, avoid the energy
The problems such as service life reduction of waste and electrolytic cell, and improve electro-catalysis efficiency.(referring to C.Niether, et.al.,
Nat.Energy, 2018,3,476.)), but the electromagnetic heating system of the structure is complicated, and cost is very high.
Summary of the invention
Based on above-mentioned technical problem, the purpose of the present invention is to provide a kind of electrothermal high temperature electrode system, the present invention is logical
It crosses and merges electric heating system with electro-chemical systems, heated electrode section with electrothermal way, reach and accelerate electrochemical reaction, improve electricity
The effect of chemical reaction efficiency.
Technical solution according to the present invention provides a kind of electrothermal high temperature electrode system comprising anode 1, cathode 2,
First DC power supply 3, the first heating wire 4, the second DC power supply 5, the second heating wire 6, third DC power supply 7, electricity
Solution liquid 8 and electrolytic cell 9, Anodic 1 are connected with the anode of third DC power supply 7, and cathode 2 and third DC power supply 7 are just
Pole is connected, and the first DC power supply 3 is connected with the first heating wire 4；The first DC power supply parameter and the first heating wire 4
Match, constant voltage is exported according to the electric heating parameter of heating wire, so that heating wire keeps a certain temperature.
Wherein, which has temperature regulation circuit, to realize the adjusting of different temperatures.
Further, the first heating wire 4 is connected with anode 1, and the second DC power supply 5 is connected with the second heating wire 6.The
Two heating wire 6 are connected with cathode 2, and the anode of third DC power supply 7 is connect with anode 1.Second DC power supply, 5 parameter and the
The matching of two heating wire 6 exports constant voltage according to the electric heating parameter of the second heating wire, so that heating wire keeps a certain temperature；Or
Person realizes the adjusting of different temperatures configured with temperature regulation circuit.
Preferably, electrochemical reaction occurs in electrolyte 8 for anode 1 and cathode 2, and electricity is used between anode 1 and cathode 2
Liquid 8 or diaphragm are solved to be spaced.
It is highly preferred that the third DC power supply 7 matches with anode 1, cathode 2 and electrolyte 8, according to each electrode in electricity
The overpotential of bubbing in liquid is solved, constant voltage is exported or constant current realizes the preparation of gas.Anode 1 and cathode 2 two
Person is not directly contacted with and (is unable to conduct electrons).Electrolytic cell 9 is for holding electrolyte 8.
Compared with prior art, the invention has the following advantages:
First, temperature is not limited by the boiling point of water, can be higher than 100 DEG C, and temperature-controllable；Second, only heating occurs
The electrode of reaction, heating speed are fast and energy saving；Third avoids the corrosion of electrolytic cell, improves system lifetim；4th, be
It unites simple structure, cheap.
Detailed description of the invention
Fig. 1 is electrothermal high temperature electrode system schematic according to the present invention；
Fig. 2 is the plate construction schematic diagram of cathode or anode；
Fig. 3 is the grid structure schematic diagram of cathode or anode；
Fig. 4 is the pumiceous texture schematic diagram of cathode or anode；
Fig. 5 is the structural schematic diagram of heating wire Yu electrode connected component.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.Additionally, protection scope of the present invention should not only be limited to following
Specific experiment method or design parameter.
Joule heat can be generated by flowing through object the present invention is based on electric current, the material for selecting electrocaloric coefficient high, electric energy and thermal energy
Between transfer efficiency be up to 95% or more, such as nichrome, ceramic heating plate.The present invention is by electric heating system and electro-chemical systems
Fusion has the function that accelerate electrochemical reaction, improves electrochemical reaction efficiency with electrothermal way by heated by electrodes.
The application provides a kind of electrothermal high temperature electrode system, as shown in Figure 1, the electrothermal high temperature electrode system includes
Anode 1, cathode 2, the first DC power supply 3, the first heating wire 4, the second DC power supply 5, the second heating wire 6, third DC power supply
7, electrolyte 8 and electrolytic cell 9, Anodic 1 are connected with the anode of third DC power supply 7, during the work time, the anode 1
Generate oxygen.Cathode 2 is connected with the anode of third DC power supply 7, and during the work time, which generates hydrogen.First is straight
Galvanic electricity source 3 is connected with the first heating wire 4, and during the work time, the first DC power supply 3 provides electric energy to the first heating wire 4.It should
First DC power supply parameter is matched with the first heating wire 4, constant voltage is exported according to the electric heating parameter of heating wire, so that heating wire
A certain temperature is kept, can also be configured the adjusting that temperature regulation circuit realizes different temperatures.
Further, the first heating wire 4 is connected with anode 1, and during the work time, the first heating wire 4 is by the first direct current
The electric energy that power supply 3 provides is converted to thermal energy, and is transmitted to anode 1 in the form of heat transmitting.Second DC power supply 5 and the second heating wire
6 are connected, and during the work time, the second DC power supply 5 provides electric energy to the second heating wire 6.Second DC power supply, 5 parameter with
The matching of second heating wire 6 exports constant voltage according to the electric heating parameter of the second heating wire, so that heating wire keeps a certain temperature,
It can also be configured the adjusting that temperature regulation circuit realizes different temperatures.Second heating wire 6 is connected with cathode 2, during the work time,
The electric energy that second DC power supply 5 provides is converted to thermal energy by the second heating wire 6, and is transmitted to cathode 2 in the form of heat transmitting.Third
The anode of DC power supply 7 is connect with anode 1, and the cathode of third DC power supply 7 is connect with cathode 2.Moisture is given during the work time
Solution reaction provides electric energy.The third DC power supply 7 matches with anode 1, cathode 2 and electrolyte 8, is being electrolysed according to each electrode
The overpotential of bubbing in liquid, exports constant voltage or constant current realizes the preparation of gas.
Electrochemical reaction occurs in electrolyte 8 for anode 1 and cathode 2, and between anode 1 and cathode 2 using electrolyte 8 or
Person's diaphragm is spaced, and both anode 1 and cathode 2 are not directly contacted with and (are unable to conduct electrons).Electrolytic cell 9 is for holding electrolyte
8, it is the place for preparing gas.
As shown in figs 2-4, Fig. 2-Fig. 4 is the structural schematic diagram of cathode and anode.Cathode and anode all include electrode collection
Stream part 1-1.Cathode is similar with the structure of anode.Electrode current collecting part (collector) 1-1 usually selects electric conductivity good
Material, main function are that the electric current of power supply is passed to electrode.In the invention, the collector of electrode is also used to transmit heat,
I.e. the heat transfer of heating wire to electrode.Cathode and anode can be the metal of catalytic performance, alloy, metal oxide or
The compound of above-mentioned material.Its shape can be plate (as shown in Figure 2), grid (as shown in Figure 3) or foam-like (such as Fig. 4 institute
Show).Grid is that macropore is manufactured on plate, realize macropore throughout；Foam-like is that aperture is manufactured on plate, realizes aperture time
Cloth；On the one hand macropore or aperture increase electrochemical reaction area, be conducive to the preparation of gas；On the other hand, duct is conducive to
The diffusion of gas.
As shown in figure 3, Fig. 3 is the structural schematic diagram of heating wire Yu electrode connected component.Heating wire is coaxially wound again electric
On extremely, generally more than five circles to be advisable.Heating wire converts electrical energy into thermal energy, and temperature can be increased to 500 DEG C or more in a few seconds.
Heating wire winding electrode afflux body portion, it is and closely coupled to it, it is ensured that the thermal energy of heating wire is transmitted on electrode.
At work, DC power supply contacts the heat to working electrode directly to electric-heating-wire-heating, heating wire to the present invention.It is this
Heating mode can be near the several seconds.
Advantage: first, temperature is not limited by the boiling point of water, can be higher than 100 DEG C, and temperature-controllable；Second, only heat
The electrode to react, heating speed are fast and energy saving；Third avoids the corrosion of electrolytic cell, improves system lifetim；The
Four, it is system simple structure, cheap.In addition, the present invention is applied in following technical field: electro-catalysis water decomposition hydrogen manufacturing system；
Fuel cell system；Electro-catalysis prepares chlorine；Organocatalysis oxidation technology field.
It should be noted that the shape and size of each component do not react actual size and ratio in figure, and only illustrate this hair
The content of bright embodiment.Part of that present invention that are not described in detail belong to the well-known technology of those skilled in the art.The foregoing is merely
Presently preferred embodiments of the present invention is not intended to limit the invention, and all within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of electrothermal high temperature electrode system comprising anode (1), cathode (2), the first DC power supply (3), the first heating wire
(4), the second DC power supply (5), the second heating wire (6), third DC power supply (7), electrolyte (8) and electrolytic cell (9), middle-jiao yang, function of the spleen and stomach
Pole (1) is connected with the anode of third DC power supply (7), and cathode (2) is connected with the anode of third DC power supply (7), and first
DC power supply (3) is connected with the first heating wire (4)；The first DC power supply parameter is matched with the first heating wire (4), according to electricity
The electric heating parameter of heated filament exports constant voltage, so that heating wire keeps a certain temperature.
2. electrothermal high temperature electrode system according to claim 1, which is characterized in that the first DC power supply parameter configuration
There is temperature regulation circuit, to realize the adjusting of different temperatures.
3. electrothermal high temperature electrode system according to claim 1, which is characterized in that the first heating wire (4) and anode (1)
It is connected, the second DC power supply (5) is connected with the second heating wire (6).
4. electrothermal high temperature electrode system according to claim 2, which is characterized in that the second heating wire (6) and cathode (2)
It is connected, the anode of third DC power supply (7) is connect with anode (1).
5. electrothermal high temperature electrode system according to claim 4, which is characterized in that the second DC power supply (5) parameter
It is matched with the second heating wire (6), constant voltage is exported according to the electric heating parameter of the second heating wire, so that heating wire keeps a certain temperature
Degree；Or the adjusting of different temperatures is realized configured with temperature regulation circuit.
6. electrothermal high temperature electrode system according to claim 1, which is characterized in that anode (1) is being electrolysed with cathode (2)
Electrochemical reaction occurs in liquid (8), and is spaced between anode (1) and cathode (2) using electrolyte (8) or diaphragm.
7. electrothermal high temperature electrode system according to claim 2, which is characterized in that the third DC power supply (7) and sun
Pole (1), cathode (2) and electrolyte (8) match, and according to the overpotential of each electrode bubbing in the electrolytic solution, output is permanent
Constant voltage or constant current realize the preparation of gas.
8. electrothermal high temperature electrode system according to claim 4, which is characterized in that both anode (1) and cathode (2) are no
Directly contact (being unable to conduct electrons).Electrolytic cell (9) is for holding electrolyte (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910670314.5A CN110324918A (en) | 2019-07-24 | 2019-07-24 | A kind of electrothermal high temperature electrode system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113774415A (en) * | 2021-09-03 | 2021-12-10 | 武汉精能电子技术有限公司 | Hydrogen production electrolytic cell simulation device and method |
| CN113789530A (en) * | 2021-09-03 | 2021-12-14 | 武汉精能电子技术有限公司 | Electrolytic cell hydrogen production device and method |
| SE2130077A1 (en) * | 2021-03-19 | 2022-09-20 | Smoltek Ab | An electrolyzer comprising a heating apparatus |
-
2019
- 2019-07-24 CN CN201910670314.5A patent/CN110324918A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE2130077A1 (en) * | 2021-03-19 | 2022-09-20 | Smoltek Ab | An electrolyzer comprising a heating apparatus |
| SE545582C2 (en) * | 2021-03-19 | 2023-10-31 | Smoltek Ab | An electrolyzer comprising a heating apparatus operated by propagating electromagnetic waves or alternating magnetic fields |
| CN113774415A (en) * | 2021-09-03 | 2021-12-10 | 武汉精能电子技术有限公司 | Hydrogen production electrolytic cell simulation device and method |
| CN113789530A (en) * | 2021-09-03 | 2021-12-14 | 武汉精能电子技术有限公司 | Electrolytic cell hydrogen production device and method |
| CN113789530B (en) * | 2021-09-03 | 2023-10-03 | 武汉精能电子技术有限公司 | Electrolytic cell hydrogen production device and method |
| CN113774415B (en) * | 2021-09-03 | 2023-10-10 | 武汉精能电子技术有限公司 | Hydrogen production electrolytic cell simulation device and method |
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