CN219547118U - Cathode device for producing hydrogen by water electrolysis - Google Patents
Cathode device for producing hydrogen by water electrolysis Download PDFInfo
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- CN219547118U CN219547118U CN202320234255.9U CN202320234255U CN219547118U CN 219547118 U CN219547118 U CN 219547118U CN 202320234255 U CN202320234255 U CN 202320234255U CN 219547118 U CN219547118 U CN 219547118U
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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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Abstract
The utility model discloses a cathode device for producing hydrogen by electrolyzing water, which belongs to the field of hydrogen production devices and comprises an electrolytic cell and a cover body, wherein the cover body is detachably connected with an opening of the electrolytic cell, a cathode installation groove and an anode installation groove are formed in the lower end of the cover body, an electrolytic anode is fixedly installed in the anode installation groove, a cathode installation opening and a cathode fixing plate are arranged in the cathode installation groove, at least two cathode installation openings are formed in the cathode installation opening, a fixing opening is formed in the cathode fixing plate, an electrolytic cathode is slidably matched in the cathode installation opening, a fixing protrusion is arranged on the electrolytic cathode, a rack is arranged on the side surface of the electrolytic cathode, the size of the fixing opening is identical to that of the electrolytic cathode, a driving device is arranged at the top of the cover body, and an output shaft of the driving device is fixedly connected with a gear coaxially, and the gear is meshed with the rack. By adopting the technical scheme of the utility model, the cathode with low activity can be replaced in the process of producing hydrogen by water electrolysis, so that the hydrogen production by water electrolysis can be continuously carried out, and the hydrogen production efficiency by water electrolysis is effectively improved.
Description
Technical Field
The utility model belongs to the field of hydrogen production devices, and particularly relates to a cathode device for producing hydrogen by water electrolysis.
Background
The main hydrogen production methods at present are coal gasification hydrogen production, natural gas hydrogen production, methanol hydrogen production, industrial byproduct hydrogen production, electrolytic water hydrogen production and the like. Wherein, the hydrogen production by water electrolysis is a more convenient method for preparing hydrogen. And D, introducing direct current into the electrolytic tank filled with the electrolyte, and enabling water molecules to undergo electrochemical reaction on the electrodes to be decomposed into hydrogen and oxygen. The hydrogen is widely used as a clean new energy carrier and can be used for storing renewable energy sources such as solar energy, wind energy and the like in fuel cells. However, a great deal of energy is consumed in the water electrolysis process, so how to improve the efficiency of water electrolysis hydrogen production is important.
To solve the above problems, chinese patent CN217869104U discloses an electrolytic hydrogen production device, which comprises a control device, a dc electrolytic power supply, an electrolytic tank, and an electrolyte reservoir, wherein the electrolytic tank comprises: the device comprises an electrolytic tank shell, an electrolytic tank middle partition board, an anode, a cathode area low liquid level sensor, a cathode area high liquid level sensor, an anode area high liquid level sensor, a nitrogen purging inlet valve, a nitrogen purging exhaust valve, a hydrogen valve, an electrolyte supplementing valve, an oxygen emptying port and an electrolytic tank sewage discharging valve; the electrolyte storage tank consists of a storage tank shell, a storage tank low-liquid level sensor and a storage tank drain valve, and is connected with the electrolytic tank through an electrolyte supplementing valve; the control device controls the electrolytic hydrogen production and cleaning maintenance according to the program set by the electrolytic hydrogen production device.
The technical proposal of the utility model improves the efficiency of the water electrolysis hydrogen production to a certain extent, but the activity of the cathode is gradually reduced in the process of the water electrolysis hydrogen production, so that the preparation efficiency of the hydrogen gradually slides down, the cathode with low activity is taken out for treatment, and the cathode with higher activity is replaced, so that the efficiency of the water electrolysis hydrogen production can be improved.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide a cathode device for producing hydrogen by water electrolysis, which solves the problems that in the water electrolysis hydrogen production process in the prior art, the cathode activity is gradually reduced, and the hydrogen production efficiency by water electrolysis is reduced.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
the utility model provides an electrolytic water hydrogen production cathode device, including electrolytic cell and lid, the lid can be dismantled with the electrolytic cell opening and be connected, cathode mounting groove and positive pole mounting groove have been seted up to the lid lower extreme, positive pole mounting inslot fixed mounting has electrolysis positive pole, be provided with negative pole installing port and negative pole fixed plate in the negative pole mounting groove, the negative pole installing port is provided with two at least, be provided with the fixed mouth on the negative pole fixed plate, sliding fit has the electrolysis negative pole in the negative pole installing port, be provided with fixed arch on the electrolysis negative pole, the electrolysis negative pole side is provided with the rack, the size of fixed mouth is the same with the size of electrolysis negative pole, the lid top is provided with drive arrangement, drive arrangement output shaft coaxial fixedly connected with gear, gear and rack meshing.
After the scheme is adopted, the following beneficial effects are realized:
the water is added into the electrolytic tank, the electrolytic anode and the electrolytic cathode on the cover body are electrified, the electrolytic anode can be electrically contacted with oxygen in the water after the electrifying, the electrolytic cathode can be used for electrolyzing hydrogen in the water, the activity of the electrolytic cathode can be gradually reduced after one end of use of the electrolytic cathode, the efficiency of the electrolytic hydrogen is gradually reduced, at the moment, the electrolytic cathode which needs to be replaced can be replaced by starting to drive rotation, the driving device rotates to drive the gear to rotate, the gear drives the rack meshed with the gear to move upwards, the electrolytic cathode which needs to be replaced is lifted to a certain height from the electrolytic tank, the electrolytic cathode can be taken out for replacement, the electric connection cathode is inserted into a cathode mounting port after replacement, the driving device is started to rotate in the opposite direction again, the gear drives the rack meshed with the electrolytic cathode to descend, so that the replaced electrolytic cathode descends, when the fixed protrusion of the electrolytic cathode is contacted with the fixed plate, the electrolytic cathode can not continue descending, namely reaches the mounting position, the electrolytic hydrogen can be continuously produced with higher efficiency after the electrifying the replaced electrolytic cathode, and the electrolytic cathode is not cut off in the electrolytic process, and the electrolytic state is kept. Through this scheme, the effectual convenience that has improved the change electrolysis negative pole has improved the efficiency of water electrolysis hydrogen manufacturing simultaneously.
Further, the electrolytic cathode comprises an adjusting area and an electrolytic area, a plurality of bulges are arranged on two sides of the electrolytic area, the fixing bulges are arranged on two sides of the adjusting area, and the racks are arranged on the side face of the adjusting area.
The beneficial effects are that: the bulges at the two sides of the electrolysis area can increase the surface area of the cathode, and the larger surface area of the cathode can improve the contact quantity of water and the cathode. Thereby improving the efficiency of water electrolysis hydrogen production, and being more beneficial to heat dissipation due to the larger cathode surface area.
Further, the cover is provided with an electrolyte plate disposed between the anode mounting groove and the cathode mounting groove.
The beneficial effects are that: the electrolyte plate arranged between the electrolytic cathode and the electrolytic anode can conduct ions, and a conductive path is formed between the cathode and the anode, so that the efficiency of hydrogen production by water electrolysis is improved.
Further, a collecting channel is arranged between the outer wall and the inner wall of the electrolytic cell, the collecting channel is communicated with the inside of the electrolytic cell, a separating mechanism is arranged on the side face of the electrolytic cell, and the separating mechanism is communicated with the collecting channel.
The beneficial effects are that: the electrolyzed oxygen and hydrogen enter the collecting channel from different collecting channel ports, and as the temperature of the oxygen and hydrogen just electrolyzed is higher, the heat of the oxygen and hydrogen can be used for preserving the heat of the electrolytic cell, the temperature of the hydrogen can be slightly reduced, and the separation mechanism is convenient for separating the hydrogen and the water in the hydrogen.
Further, separating mechanism includes casing and cooling tube, and the cooling tube is provided with into water end and play water end, and into water end and play water end all set up in the casing side, and the casing top is provided with air inlet and hydrogen collection mouth, and the casing bottom is provided with the gas outlet, and air inlet and gas outlet all communicate with collecting channel.
The beneficial effects are that: condensed water enters the cooling pipe from the water inlet end and flows out from the water outlet end, so that the temperature of the cooling pipe is lower, the cooling pipe cools the electrolyzed hydrogen, hot gas encounters the cooling pipe with lower temperature and is condensed into water dew around the cooling pipe, the water dew is the water in the electrolyzed hydrogen, and the rest of the gas is discharged from the hydrogen collecting port to collect the hydrogen.
Further, the bottom of the electrolytic cell is provided with a discharge port which is communicated with the collecting channel.
The beneficial effects are that: the water separated by the separating mechanism is discharged to and from the discharge port through the collecting channel, and the electrolyzed oxygen is discharged to and from the discharge port through the collecting channel, so that the water is convenient to collect.
Further, the collecting channels positioned at the two sides of the discharge port are respectively provided with a one-way valve.
The beneficial effects are that: the one-way valve can make the gas and liquid discharged from the collecting channels on both sides to the discharge port discharge in one way, so as to avoid the back flow of the gas and avoid the gas discharged from the opposite collecting channels from flowing into the opposite collecting channels.
Further, a water adding pipeline is arranged at the bottom of the electrolytic cell, the water adding pipeline is communicated with the inside of the electrolytic cell, and a valve is arranged on the water adding pipeline.
The beneficial effects are that: the electrolyzed water source can be added into the electrolytic cell from the bottom of the electrolytic cell through a water adding pipe, and can be discharged from the bottom of the electrolytic cell through the water adding pipe, so that the water source in the electrolytic cell can be replaced conveniently.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of a cathode assembly for producing hydrogen by electrolysis of water in accordance with the present utility model;
FIG. 2 is an electrolytic anode side view of an embodiment of a cathode assembly for producing hydrogen from water electrolysis in accordance with the present utility model;
FIG. 3 is a cross-sectional view of a separator mechanism of an embodiment of a cathode assembly for producing hydrogen by electrolysis of water in accordance with the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: the electrolytic cathode 1, the cover body 2, the anode mounting groove 3, the electrolytic cell 4, the collecting channel 5, the electrolytic anode 6, the electrolyte plate 7, the one-way valve 8, the discharge port 9, the water adding pipe 10, the separating mechanism 11, the hydrogen collecting port 12, the cathode mounting groove 13, the cathode fixing plate 14, the fixing protrusion 15, the adjusting area 101, the electrolytic area 102, the protrusion 103, the rack 104, the air inlet 201, the cooling pipe 202 and the air outlet 203.
The embodiment is basically as shown in the accompanying figures 1-3: the utility model provides an electrolytic water hydrogen manufacturing cathode device, includes electrolytic cell 4 and lid 2, and lid 2 can be dismantled with electrolytic cell 4 opening and be connected, and cathode mounting groove 13 and positive pole mounting groove 3 have been seted up to lid 2 lower extreme, fixedly connected with electrolyte board 7 on lid 2 between cathode mounting groove 13 and the positive pole mounting groove 3, and fixed mounting has electrolysis positive pole 6 in the positive pole mounting groove 3, is provided with negative pole installing port and negative pole fixed plate 14 in the cathode mounting groove 13, and the quantity of negative pole installing port is two. The cathode fixing plate 14 is fixedly connected with the inner wall of the upper end of the cathode mounting groove 13, a fixing opening is arranged on the cathode fixing plate 14, and the cathode mounting opening is slidably matched with the electrolytic cathode 1. The electrolytic cathode 1 comprises an adjusting area 101 and an electrolytic area 102, wherein a plurality of bulges 103 are arranged on two sides of the electrolytic area 102, fixing bulges 15 are fixedly connected on two sides of the adjusting area 101, and racks 104 are fixedly connected on the side face of the adjusting area 101. The size of the fixed port is the same as that of the electrolytic cathode 1, the top of the cover body 2 is fixedly connected with motors, the number of the motors is the same as that of the cathode mounting ports, the output shaft of the driving device is coaxially and fixedly connected with gears, and the gears are meshed with the racks 104.
A collecting channel 5 is arranged between the outer wall and the inner wall of the electrolytic cell 4, the collecting channel 5 is communicated with the inside of the electrolytic cell 4, a discharge port 9 is arranged at the bottom of the electrolytic cell 4, the discharge port 9 is communicated with the collecting channel 5, one-way valves 8 are arranged in the collecting channels 5 at two sides of the discharge port 9, a water adding pipe 10 is arranged on the side wall of the electrolytic cell 4, and the water adding pipe 10 penetrates through the side wall of the electrolytic cell 4 and is communicated with the inside of the electrolytic cell 4. The electrolytic cell 4 side fixedly connected with separating mechanism 11, separating mechanism 11 include casing and cooling tube 202, and cooling tube 202 is provided with into water end and play water end, and into water end and play water end all set up in the casing side and extend to the casing outside, and the casing top is provided with air inlet 201 and hydrogen collection mouth 12, and the casing bottom is provided with gas outlet 203, and air inlet 201 communicates with collecting channel 5 of separating mechanism 11 upper end.
The specific implementation process is as follows:
firstly, water to be electrolyzed is added into the electrolytic cell 4 through a water adding pipe 10 at the lower end of the electrolytic cell 4, the electrolytic cathode 1 is respectively inserted into two cathode mounting ports, a motor is started, the motor rotates to enable a gear to rotate, the gear drives a rack 104 meshed with the gear to move downwards, an electrolysis area 102 of the electrolytic cathode 1 is put into the water, when the electrolytic cathode falls to a fixed position, a fixed protrusion 15 is in contact with a cathode fixing plate 14, the motor operation is stopped, the fixed protrusion 15 is overlapped with the cathode fixing plate 14, and the electrolytic hydrogen can be prevented from being discharged from the cathode mounting ports. The structure of the protrusions 103 of the electrolysis area 102 is convenient for increasing the contact area with water in the electrolysis process, the electrolysis anode 6 and the two electrolysis cathodes 1 are electrified, the electrified anode and cathode can electrolyze the water, the anode electrolyzes oxygen in the water, and the cathode electrolyzes hydrogen in the water. The electrolyzed hot hydrogen enters the separating mechanism 11 through the collecting channel 5 and the air inlet 201, condensed water is introduced from the water inlet end of the cooling pipe 202, the condensed water reduces the temperature of the cooling pipe 202, when the electrolyzed hot hydrogen contacts the cooling pipe 202, dew is formed around the cooling pipe 202, the moisture exposed by the dew enters the collecting channel 5 through the air outlet 203, and is discharged from the discharge port 9 through the collecting pipeline, and the rest of hydrogen is discharged through the hydrogen collecting port 12 for collection.
If the activity of the electrolytic cathode 1 is reduced after electrolysis for a period of time, when the electrolytic cathode 1 needs to be replaced, the power supply of the electrolytic cathode 1 which needs to be replaced is disconnected, a motor corresponding to the electrolytic cathode 1 which needs to be replaced is started, the motor rotates in the opposite direction, the gear drives the rack 104 to move upwards so as to enable the electrolytic cathode 1 to move upwards, the electrolytic cathode 1 is replaced, and then the motor is started to install the electrolytic cathode 1 into the electrolytic tank 4 and electrify the electrolytic cathode 1 so as to continue the electrolytic hydrogen production. The cathode replacement process is convenient and rapid, and the electrolytic cathode 1 does not need to be replaced after the electrolysis is stopped. The efficiency of hydrogen production by water electrolysis is more effectively improved.
The foregoing is merely exemplary of the present utility model and the specific structures and/or characteristics of the present utility model that are well known in the art have not been described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (8)
1. The cathode device for producing hydrogen by electrolyzing water is characterized in that: including electrolytic cell and lid, the lid can be dismantled with the electrolytic cell opening and be connected, cathode mounting groove and positive pole mounting groove have been seted up to the lid lower extreme, positive pole mounting inslot fixed mounting has the electrolysis positive pole, be provided with negative pole installing port and negative pole fixed plate in the cathode mounting groove, the negative pole installing port is provided with two at least, be provided with the fixed port on the negative pole fixed plate, sliding fit has the electrolysis negative pole in the negative pole installing port, be provided with fixed arch on the electrolysis negative pole, the electrolysis negative pole side is provided with the rack, the size of fixed port is the same with the size of electrolysis negative pole, the lid top is provided with drive arrangement, drive arrangement output shaft coaxial fixedly connected with gear, gear and rack engagement.
2. The cathode assembly for producing hydrogen from water by electrolysis of water according to claim 1, wherein: the electrolytic cathode comprises an adjusting area and an electrolytic area, a plurality of bulges are arranged on two sides of the electrolytic area, the fixing bulges are arranged on two sides of the adjusting area, and the racks are arranged on the side face of the adjusting area.
3. The cathode assembly for producing hydrogen from water by electrolysis of water according to claim 2, wherein: the cover body is provided with an electrolyte plate, and the electrolyte plate is arranged between the anode mounting groove and the cathode mounting groove.
4. A cathode assembly for producing hydrogen from water by electrolysis according to claim 3, wherein: a collecting channel is arranged between the outer wall and the inner wall of the electrolytic cell, the collecting channel is communicated with the inside of the electrolytic cell, a separating mechanism is arranged on the side face of the electrolytic cell, and the separating mechanism is communicated with the collecting channel.
5. The cathode assembly for producing hydrogen from water by electrolysis of water according to claim 4, wherein: the separating mechanism comprises a shell and a cooling pipe, the cooling pipe is provided with a water inlet end and a water outlet end, the water inlet end and the water outlet end are both arranged on the side face of the shell, the top of the shell is provided with an air inlet and a hydrogen collecting port, the bottom of the shell is provided with an air outlet, and the air inlet and the air outlet are both communicated with the collecting channel.
6. The cathode assembly for producing hydrogen from water by electrolysis of water according to claim 5, wherein: the bottom of the electrolytic cell is provided with a discharge port which is communicated with the collecting channel.
7. The cathode assembly for producing hydrogen from water by electrolysis of water according to claim 6, wherein: and one-way valves are arranged in the collecting channels positioned at the two sides of the discharge port.
8. The cathode assembly for producing hydrogen from water by electrolysis of water according to claim 7, wherein: the bottom of the electrolytic cell is provided with a water adding pipeline which is communicated with the inside of the electrolytic cell, and the water adding pipeline is provided with a valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320234255.9U CN219547118U (en) | 2023-02-16 | 2023-02-16 | Cathode device for producing hydrogen by water electrolysis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320234255.9U CN219547118U (en) | 2023-02-16 | 2023-02-16 | Cathode device for producing hydrogen by water electrolysis |
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| CN219547118U true CN219547118U (en) | 2023-08-18 |
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| CN202320234255.9U Active CN219547118U (en) | 2023-02-16 | 2023-02-16 | Cathode device for producing hydrogen by water electrolysis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116623205A (en) * | 2023-06-01 | 2023-08-22 | 深圳市图灵科创产业发展有限公司 | Electrolytic tank for producing hydrogen by water electrolysis and preparation method of cathode electrode for producing hydrogen by water electrolysis |
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2023
- 2023-02-16 CN CN202320234255.9U patent/CN219547118U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116623205A (en) * | 2023-06-01 | 2023-08-22 | 深圳市图灵科创产业发展有限公司 | Electrolytic tank for producing hydrogen by water electrolysis and preparation method of cathode electrode for producing hydrogen by water electrolysis |
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