CN218779037U - Electrolytic cell, electrolytic assembly and electrolytic hydrogen production apparatus - Google Patents
Electrolytic cell, electrolytic assembly and electrolytic hydrogen production apparatus Download PDFInfo
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- CN218779037U CN218779037U CN202223111326.0U CN202223111326U CN218779037U CN 218779037 U CN218779037 U CN 218779037U CN 202223111326 U CN202223111326 U CN 202223111326U CN 218779037 U CN218779037 U CN 218779037U
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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 an electrolysis unit, an electrolysis assembly and electrolysis hydrogen production equipment, wherein the electrolysis unit comprises an electrolysis main body, a diaphragm and an electrode assembly, and an electrolysis cavity is formed in the electrolysis main body; the diaphragm is arranged in the electrolytic cavity and divides the electrolytic cavity into a positive electrode cavity and a negative electrode cavity; electrode subassembly includes anodal net and the negative pole net that switches on with external power, and anodal net is located in the positive pole cavity to connect in the inner chamber wall of positive pole cavity, and negative pole net is located in the negative pole cavity, and connect in the inner chamber wall of negative pole cavity, and diaphragm's the opposite sides mutually are located respectively to anodal net and negative pole net, and electrolysis chamber, diaphragm, and electrode subassembly are all along the sunken setting of the axis direction of electrolysis main part. The technical scheme of the utility model aims at improving the electrolysis volume of electrolysis unit to reduce the diameter and the area of electrolysis unit, reduce the whole volume that occupies of electrolysis subassembly, improve the practicality of electrolysis unit.
Description
Technical Field
The utility model relates to an electrolysis hydrogen manufacturing technical field, in particular to electrolysis unit, electrolysis subassembly and electrolysis hydrogen manufacturing equipment.
Background
In the existing electrolytic hydrogen production equipment, independent electrolytic units are mostly utilized to form electrolytic small chambers, and a plurality of electrolytic units are connected in a laminated manner to form an electrolytic assembly to realize large-batch hydrogen production so as to meet the hydrogen production requirements of the electrolytic hydrogen production equipment.
Most of the existing electrolytic units are designed in a flat mode, the diameter and the area of the electrolytic unit are generally required to be increased so as to achieve larger electrolytic volume, and the hydrogen production amount of an electrolytic assembly is increased. However, the increase of the diameter and area of the electrolysis unit can lead to the increase of the overall occupied volume of the electrolysis assembly, so that the overall arrangement layout of the hydrogen production equipment by electrolysis is inconvenient, and the practicability of the electrolysis unit is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an electrolysis unit, electrolysis subassembly and electrolysis hydrogen manufacturing equipment aims at improving the electrolysis volume of electrolysis unit to reduce electrolysis unit's diameter and area, reduce electrolysis subassembly's whole volume that occupies, improve electrolysis unit's practicality.
In order to achieve the purpose, the utility model provides an electrolysis unit, which comprises an electrolysis main body, a diaphragm and an electrode assembly, wherein an electrolysis cavity is formed in the electrolysis main body; the diaphragm is arranged in the electrolytic cavity and divides the electrolytic cavity into a positive electrode cavity and a negative electrode cavity; electrode subassembly includes anodal net and the negative pole net that switches on with external power supply, anodal net is located in the anodal cavity, and connect in the inner chamber wall of anodal cavity, negative pole net is located in the negative pole cavity, and connect in the inner chamber wall of negative pole cavity, anodal net with negative pole net locates respectively the relative both sides back to back of diaphragm, the electrolysis chamber the diaphragm with electrode subassembly all follows the axis direction of electrolysis main part is sunken to be set up.
Optionally, the electrolysis unit further comprises a support assembly, wherein the support assembly comprises a first support member and a second support member, and the first support member is arranged in the positive electrode chamber and is arranged between the positive electrode mesh and the inner cavity wall of the positive electrode chamber; the second support piece is arranged in the negative electrode cavity and is arranged between the negative electrode pole net and the inner cavity wall of the negative electrode cavity.
Optionally, the first supporting member and the second supporting member are both of a mesh structure, and both of the first supporting member and the second supporting member are recessed along a central axis direction of the electrolysis main body.
Optionally, a catalytic layer is arranged on one side of the anode mesh facing the membrane. And/or a catalytic layer is arranged on one side of the negative electrode grid, which faces the membrane.
Optionally, the electrolysis main body comprises a frame, a first polar plate and a second polar plate, the frame is provided with a mounting hole: the first polar plate is connected to the hole wall of the mounting hole; the second polar plate connect in the pore wall of mounting hole, and with first polar plate interval sets up, first polar plate with the second polar plate all follows the axis of mounting hole is sunken to be set up. The diaphragm is arranged between the first polar plate and the second polar plate, the first polar plate, the polar frame and the diaphragm are enclosed to form the positive electrode cavity, and the second polar plate, the polar frame and the diaphragm are enclosed to form the negative electrode cavity.
Optionally, the pole frame includes a first frame body, a second frame body and an insulating gasket, the first pole plate is connected to the inner periphery of the first frame body, and the positive pole mesh is electrically conducted with the first frame body; the second polar plate is connected to the inner periphery of the second frame body, and the negative polar net is electrically conducted with the second frame body; the two opposite sides of the insulating gasket are connected with the first frame body and the second frame body respectively, and the diaphragm is connected to the inner periphery of the insulating gasket.
Optionally, the first electrode plate is welded to the first frame body. And/or the second pole plate is welded on the second frame body. And/or defining the thickness of the insulating gasket in the direction of the central axis of the mounting hole as W, and meeting the following conditions: w is more than or equal to 3mm.
Optionally, the pole frame is provided with a first exhaust hole communicated with the positive pole cavity and a second exhaust hole communicated with the negative pole cavity.
Optionally, the electrode frame is provided with a liquid injection hole and a liquid discharge hole respectively communicating the positive electrode chamber and the negative electrode chamber.
The utility model discloses still provide an electrolysis subassembly, electrolysis subassembly includes more than at least one electrolysis unit.
The utility model also provides an electrolysis hydrogen production equipment, electrolysis hydrogen production equipment includes foretell electrolysis subassembly.
The technical scheme of the utility model is that the diaphragm is arranged inside the electrolytic cavity of the electrolytic unit to separate the positive electrode cavity and the negative electrode cavity, and the positive electrode net and the negative electrode net are conducted with the external power supply to achieve the purpose of electrolytic hydrogen production in the electrolytic cavity. Under the ion permselectivity of the diaphragm, the electrolysis efficiency of the electrolysis unit can be better improved, and the production efficiency of the electrolytic hydrogen production equipment is improved. And through sunken setting with electrolysis chamber, diaphragm and electrode subassembly along the axis direction of electrolysis main part, can make the longitudinal section shape of electrolysis unit be the curved surface setting, be favorable to increasing the electrolysis volume in the electrolysis chamber better, still be favorable to reducing the diameter of electrolysis unit simultaneously and along the ascending area of its central axis direction, and then can reduce the whole volume that occupies of electrolysis subassembly, the overall arrangement design of the electrolytic hydrogen production equipment of being convenient for has further improved the practicality and the reliability of electrolysis unit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is an exploded view of an embodiment of the electrolysis unit of the present invention;
FIG. 2 is an exploded view of an embodiment of the first plate, the second plate, and the frame of the electrolysis cell of FIG. 1;
FIG. 3 is a top view of one embodiment of the electrolysis cell of FIG. 1;
FIG. 4 isbase:Sub>A cross-sectional view of one embodiment of FIG. 3 taken at A-A;
FIG. 5 is an enlarged view of a portion of FIG. 3 at B;
FIG. 6 isbase:Sub>A cross-sectional view of another embodiment taken at A-A of FIG. 3;
FIG. 7 is an enlarged view of a portion of FIG. 6 at C;
fig. 8 isbase:Sub>A cross-sectional view of another embodiment taken atbase:Sub>A-base:Sub>A of fig. 3.
The reference numbers indicate:
the realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the expression "and/or" as used throughout is meant to encompass three juxtaposed aspects, exemplified by "A and/or B", including either the A aspect, or the B aspect, or aspects in which both A and B are satisfied. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Most of the existing electrolytic units adopt a flat design, and the diameter and the area of the electrolytic unit are generally required to be increased so as to achieve larger electrolytic volume and increase the hydrogen production amount of an electrolytic assembly. However, the increase of the diameter and area of the electrolysis unit can lead to the increase of the overall occupied volume of the electrolysis assembly, so that the overall arrangement layout of the hydrogen production equipment by electrolysis is inconvenient, and the practicability of the electrolysis unit is reduced. In view of the above, the present invention provides an electrolysis unit 100.
Referring to fig. 1 to 8, in the embodiment of the present invention, the electrolysis unit 100 includes an electrolysis body 10, a separator 30, and an electrode assembly 50, an electrolysis chamber being formed in the electrolysis body 10; the diaphragm 30 is arranged in the electrolytic cavity and divides the electrolytic cavity into a positive electrode chamber 131 and a negative electrode chamber 151; the electrode assembly 50 includes a positive electrode mesh 51 and a negative electrode mesh 53 connected to an external power source, the positive electrode mesh 51 is disposed in the positive electrode chamber 131 and connected to the inner cavity wall of the positive electrode chamber 131, the negative electrode mesh 53 is disposed in the negative electrode chamber 151 and connected to the inner cavity wall of the negative electrode chamber 151, the positive electrode mesh 51 and the negative electrode mesh 53 are respectively disposed on opposite sides of the separator 30, and the electrolytic chamber, the separator 30, and the electrode assembly 50 are all recessed along the central axis direction of the electrolytic main body 10.
It can be understood that the electrolytic cavity may be filled with an electrolyte, and the electrolyte is stored in the positive electrode chamber 131 and the negative electrode chamber 151 respectively under the action of the diaphragm 30, and in the process of electrolysis of the electrolysis unit 100, the positive electrode grid 51 may be connected to a positive electrode of an external power supply, and the negative electrode grid 53 is connected to a negative electrode of the external power supply, so that under the action of current, hydroxyl ions in the positive electrode chamber 131 may be de-ionized to generate oxygen, hydrogen ions in the negative electrode chamber 151 may be ionized to generate hydrogen, and the purpose of electrolytic hydrogen production of the electrolysis unit 100 is achieved. The diaphragm 30 may be an ion exchange membrane or an ion selective permeation membrane, so that hydroxide ions in the negative electrode chamber 151 can enter the positive electrode chamber 131 through the diaphragm 30 to increase the concentration of the hydroxide ions in the positive electrode chamber 131, hydrogen ions in the positive electrode chamber 131 can enter the negative electrode chamber 151 through the diaphragm 30 to increase the concentration of the hydrogen ions in the negative electrode chamber 151, and meanwhile, the hydroxide ions in the positive electrode chamber 131 can not enter the negative electrode chamber 151 through the diaphragm 30 well, which is beneficial to better improving the efficiency of hydrogen production by electrolysis of the electrolysis unit 100, and further improving the practicability of the electrolysis unit 100. By adopting the grid design of the anode net 51 and the cathode net 53, the contact area of the electrolyte and the anode net 51 and the cathode net 53 can be favorably and better increased; at this time, the anode net 51 and the cathode net 53 are respectively arranged on the two opposite sides of the diaphragm 30, so that the hydroxyl ions and the hydrogen ions can be directly contacted with the anode net 51 and the cathode net 53 after passing through the diaphragm 30, the electrolysis efficiency of the electrolysis unit 100 can be improved, and the production efficiency of the electrolysis hydrogen production equipment can be further improved.
By disposing the electrolysis chamber, the separator 30 and the electrode assembly 50 to be depressed in the central axis direction of the electrolysis body 10, the overall longitudinal sectional shape of the electrolysis unit 100 may be curved, and the curved shape may be a semi-circular shape, a semi-elliptical shape, a parabolic shape, or the like (as shown in fig. 3, 6 and 8), wherein the volume of the electrolysis chamber of the electrolysis unit 100 having the parabolic shape, the semi-elliptical shape, or the semi-circular shape is gradually increased. Compared with the electrolysis unit 100 which is arranged in a flat mode, the overall volume of the electrolysis cavity in the electrolysis unit 100 which is arranged in a concave mode is larger in the same diameter range, so that the electrolysis speed in the electrolysis unit 100 is effectively improved, and the hydrogen production amount in unit time is larger. And through making electrolysis chamber, diaphragm 30 and electrode subassembly 50 along the sunken setting of the axis direction of electrolysis main part 10, can reduce the diameter of electrolysis unit 100 and the area on electrolysis unit 100 axis better, be favorable to reducing the whole volume that occupies of electrolysis subassembly better, the setting overall arrangement of the electrolytic hydrogen production equipment of being convenient for has further improved the practicality and the reliability of electrolysis unit 100.
The technical scheme of the utility model is through setting up diaphragm 30 inside the electrolysis chamber at electrolysis unit 100 and separating formation anodal cavity 131 and negative pole cavity 151 to utilize anodal net 51 and negative pole net 53 to switch on with external power and reach the electrolysis hydrogen manufacturing purpose in the electrolysis chamber. Under the ion selective permeation action of the diaphragm 30, the electrolysis efficiency of the electrolysis unit 100 can be better improved, and the production efficiency of the electrolytic hydrogen production equipment can be improved. And through sunken the setting with electrolysis chamber, diaphragm 30 and electrode subassembly 50 along the axis direction of electrolysis main part 10, can make the longitudinal section shape of electrolysis unit 100 be the curved surface setting, be favorable to increasing the electrolysis volume in the electrolysis chamber better, still be favorable to reducing the diameter of electrolysis unit 100 simultaneously and along the ascending area of its central axis direction, and then can reduce the whole volume that occupies of electrolysis subassembly, be convenient for the overall arrangement design of electrolysis hydrogen manufacturing equipment, further improved the practicality and the reliability of electrolysis unit 100.
Referring to fig. 1, 4, 5, 6 and 7, in an embodiment of the present invention, the electrolysis unit 100 further includes a support assembly 70, the support assembly 70 includes a first support 71 and a second support 73, the first support 71 is disposed in the positive electrode chamber 131 and between the positive electrode mesh 51 and the inner cavity wall of the positive electrode chamber 131; the second support 73 is disposed within the negative chamber 151 and between the negative electrode mesh 53 and the inner cavity wall of the negative chamber 151.
In this embodiment, by arranging the first supporting member 71 between the positive electrode mesh 51 and the inner cavity wall of the positive electrode chamber 131, the positive electrode mesh 51 can be supported and fixed in the positive electrode chamber 131 by using the first supporting member 71, so as to maintain the concave arrangement of the positive electrode mesh 51 and the positive electrode chamber 131, effectively prevent the deformation of the positive electrode chamber 131 and the positive electrode mesh 51, and further improve the structural stability and reliability of the electrolysis unit 100.
Similarly, by arranging the second support member 73 between the negative electrode grid 53 and the inner cavity wall of the negative electrode chamber 151, the negative electrode grid 53 can be supported and fixed in the negative electrode chamber 151 by the second support member 73, the concave arrangement of the negative electrode grid 53 and the negative electrode chamber 151 is maintained, the deformation of the negative electrode chamber 151 and the negative electrode grid 53 is effectively prevented, and the structural stability and reliability of the electrolysis unit 100 are further improved.
The first supporting member 71 and the second supporting member 73 may be block-shaped structures or column-shaped structures with a certain thickness, and a plurality of first supporting members 71 and second supporting members 73 may be arranged at intervals to achieve a more stable and reliable supporting effect, so that the first supporting member 71 and the second supporting member 73 may have better supporting strength, and the stability and reliability of the overall structure of the electrolysis unit 100 are further guaranteed.
Further, referring to fig. 1, 4 and 8, in an embodiment of the present invention, the first and second supporting members 71 and 73 are both of a mesh structure, and both the first and second supporting members 71 and 73 are recessed along a central axis direction of the electrolysis main body 10.
In this embodiment, the first supporting member 71 and the second supporting member 73 may be of a plate structure, and the first supporting member 71 and the second supporting member 73 may form a plate network structure having a certain thickness by forming a plurality of through holes or protruding a plurality of through holes on the first supporting member 71 and the second supporting member 73; or a plurality of support columns are convexly arranged on at least one side plate surface of the first support 71 and the second support 73, and a through hole penetrating through the support columns and the plate is formed in each support column to form a certain convex-breast net-shaped structure, so that a certain space gap between the positive electrode chamber 131 and the negative electrode chamber 151 can be better maintained by using the first support 71 and the second support 73, the flowing of electrolyte in the positive electrode chamber 131 and the negative electrode chamber 151 is facilitated, the support areas of the first support 71 and the second support 73 are increased, and a better support and fixation effect is achieved; meanwhile, the electrolyte can flow in the positive electrode chamber 131 or the negative electrode chamber 151 by using the through hole, thereby ensuring the normal operation of the electrolytic unit 100. Thereby further improving the overall structural stability and reliability of the electrolysis cell 100.
In one embodiment of the present invention, the anode mesh 51 is provided with a catalytic layer on the side facing the membrane 30. And/or the side of the negative electrode grid 53 facing the membrane 30 is provided with a catalytic layer.
In this embodiment, since the separator 30 has a certain ion permselectivity, the hydroxide ions can be better collected in the positive electrode chamber 131 to react to generate oxygen, and the hydrogen ions can be better collected in the negative electrode chamber 151 to react to generate hydrogen. At this time, by arranging the catalytic layer on the side of the anode mesh 51 facing the membrane 30, the reaction rate of hydroxyl ions permeating through the membrane 30 and contacting with the anode mesh 51 can be better improved by utilizing the catalytic action of the catalytic layer, which is beneficial to further improving the electrolysis efficiency of the electrolysis unit 100 and effectively improving the production efficiency of the electrolytic hydrogen production equipment. Similarly, by arranging the catalytic layer on the side of the cathode electrode mesh 53 facing the membrane 30, the catalytic action of the catalytic layer can be utilized to better improve the reaction rate of hydrogen ions permeating the membrane 30 and contacting with the cathode electrode mesh 53, which is beneficial to further improving the electrolysis efficiency of the electrolysis unit 100 and effectively improving the production efficiency of the electrolysis hydrogen production equipment.
The catalyst layer may be made of a metal-based compound, a nonmetal compound, or a carbon material compound, and the catalyst layer may be formed into a mesh structure and embedded in the positive electrode mesh 51 or the negative electrode mesh 53, or may be sprayed on the positive electrode mesh 51 or the negative electrode mesh 53.
Referring to fig. 1 and 2, in one embodiment of the present invention, the electrolysis main body 10 includes a pole frame 11, a first pole plate 13, and a second pole plate 15, the pole frame 11 is provided with a mounting hole: the first polar plate 13 is connected with the wall of the mounting hole; the second polar plate 15 is connected in the pore wall of mounting hole to set up with first polar plate 13 interval, first polar plate 13 and second polar plate 15 all set up along the axis depression of mounting hole. The diaphragm 30 is arranged between the first polar plate 13 and the second polar plate 15, the first polar plate 13, the polar frame 11 and the diaphragm 30 enclose to form a positive electrode chamber 131, and the second polar plate 15, the polar frame 11 and the diaphragm 30 enclose to form a negative electrode chamber 151.
In the embodiment, the electrolytic cavity is formed by enclosing the pole frame 11, the first pole plate 13 and the second pole plate 15, and the first pole plate 13, the diaphragm 30, the electrode assembly 50, the second pole plate 15 and other components are assembled in the mounting hole of the pole frame 11, so that the electrolytic unit 100 can be processed and produced, the assembly convenience of the electrolytic unit 100 can be improved better, and the practicability of the electrolytic unit 100 is further improved. Wherein, through sunken the setting with first polar plate 13 and second polar plate 15 along the axis of mounting hole, can ensure the sunken effect in electrolysis chamber better to make the whole longitudinal section shape of electrolysis main part 10 be the curved surface setting, be favorable to reducing the whole volume of electrolysis main part 10 better, be convenient for electrolysis unit 100's lightweight design. And by arranging the diaphragm 30 between the first polar plate 13 and the second polar plate 15, the diaphragm 30 can better separate the electrolytic cavity into the positive electrode chamber 131 and the negative electrode chamber 151, at this time, the positive electrode net 51 can be arranged between the first polar plate 13 and the diaphragm 30, the negative electrode net 53 can be arranged between the second polar plate 15 and the diaphragm 30, and the first polar plate 13, the positive electrode net 51, the diaphragm 30, the negative electrode net 53 and the second polar plate 15 are sequentially arranged in a concave manner towards the same direction, which is beneficial to making the overall structure of the electrolytic unit 100 more concise and beautiful and is convenient for assembly and maintenance of the electrolytic unit 100.
Further, referring to fig. 2 to 7, in an embodiment of the present invention, the polar frame 11 includes a first frame 111, a second frame 113 and an insulating gasket 115, the first polar plate 13 is connected to an inner periphery of the first frame 111, and the positive polar net 51 is electrically conducted with the first frame 111; the second plate 15 is connected to the inner periphery of the second frame 113, and the negative electrode mesh 53 is electrically connected to the second frame 113; the opposite sides of the insulating spacer 115 are connected to the first frame 111 and the second frame 113, respectively, and the diaphragm 30 is connected to the inner periphery of the insulating spacer 115.
In this embodiment, the first plate 13 is connected to the inner periphery of the first frame 111, and the second plate 15 is connected to the inner periphery of the second frame 113, so that the first plate 13 and the first frame 111, and the second plate 15 and the second frame 113 can form two mounting members, respectively, at this time, the diaphragm 30 is connected to the inner periphery of the insulating gasket 115, and the first frame 111 and the second frame 113 are connected to opposite sides of the insulating gasket 115, respectively, and the first frame 111 and the second frame 113 can be respectively mounted and dismounted on two sides of the insulating gasket 115, so as to assemble and overhaul the electrolysis unit 100, further improve the reliability and convenience of the overall structure of the electrolysis unit 100, facilitate user operation, and improve the practicability of the electrolysis unit 100.
By conducting the positive electrode grid 51 with the first frame 111 and conducting the negative electrode grid 53 with the second frame 113, the positive electrode and the negative electrode of the external power source can be directly connected to the first frame 111 and the second frame 113 respectively under the insulation effect of the insulating gasket 115 to realize the whole current conduction of the electrolysis unit 100, thereby effectively reducing the wiring circuit arrangement of the electrolysis unit 100, further simplifying the whole structure of the electrolysis unit 100 and facilitating the assembly and maintenance of the electrolysis unit 100.
Further, in an embodiment of the present invention, the first electrode plate 13 is welded to the first frame 111. And/or, the second electrode plate 15 is welded to the second frame 113. And/or, defining the thickness of the insulating spacer 115 in the direction of the central axis of the mounting hole as W, the condition: w is more than or equal to 3mm.
In this embodiment, the first electrode plate 13 may be made of a stainless steel material, and the first electrode plate 13 is welded to the first frame 111, so that the first electrode plate 13 and the first frame 111 can be stably connected, the structural strength of the joint between the first electrode plate 13 and the first frame 111 is improved, and the structural stability and reliability of the electrolysis unit 100 are further improved.
Similarly, the second plate 15 can be made of stainless steel, and the second plate 15 is welded to the second frame 113, so that the second plate 15 and the second frame 113 can be stably connected, the structural strength of the joint between the second plate 15 and the second frame 113 is improved, and the structural stability and reliability of the electrolysis unit 100 are further improved.
And through making insulating gasket 115 along the ascending thickness more than or equal to 3mm of the direction of mounting hole axis, can effectively improve insulating gasket 115's overall thickness, further improved insulating gasket 115's overall structure intensity, isolated first framework 111 and second framework 113 directly switch on better, ensure electrolysis unit 100's normal operating, further improved electrolysis unit 100's overall structure stability and reliability.
Referring to fig. 2 and 3, in an embodiment of the present invention, the electrode frame 11 is provided with a first exhaust hole 11a communicating with the positive electrode chamber 131 and a second exhaust hole 11b communicating with the negative electrode chamber 151.
In this embodiment, by providing the first exhaust hole 11a communicating with the positive electrode chamber 131 on the electrode frame 11, the oxygen generated by the reaction in the positive electrode chamber 131 can be better directly discharged through the first exhaust hole 11a, so as to effectively prevent the generated gas from being accumulated in the positive electrode chamber 131 to reduce the electrolysis volume in the positive electrode chamber 131, ensure the continuous operation of the electrolysis reaction in the positive electrode chamber 131, and be beneficial to better increasing the electrolysis rate of the electrolysis unit 100.
In the same way, by arranging the second exhaust hole 11b communicated with the negative electrode chamber 151 on the electrode frame 11, the hydrogen generated by the reaction in the negative electrode chamber 151 can be directly discharged through the first exhaust hole 11a better, the generated gas is effectively prevented from being accumulated in the negative electrode chamber 151 to reduce the electrolysis volume in the negative electrode chamber 151, the continuous operation of the electrolysis reaction in the negative electrode chamber 151 is ensured, and the electrolysis rate of the electrolysis unit 100 is favorably improved better.
Wherein, the first exhaust hole 11a and the second exhaust hole 11b may be disposed above the positive electrode chamber 131 and the negative electrode chamber 151, so that oxygen and hydrogen may be better exhausted, and the exhaust efficiency of the electrolysis unit 100 may be improved. The first exhaust holes 11a and the second exhaust holes 11b are arranged on the pole frame 11, so that the first exhaust holes 11a and the second exhaust holes 11b of the plurality of electrolysis units 100 can be directly and respectively communicated when the electrolysis units 100 are stacked and combined, the arrangement of pipelines in an electrolysis assembly is further reduced, the integral structure of the electrolysis hydrogen production equipment is simplified, and the assembly and maintenance of the electrolysis hydrogen production equipment are facilitated.
Referring to fig. 2 and 3, in an embodiment of the present invention, the electrode frame 11 is provided with a liquid injection hole 11c and a liquid discharge hole 11d respectively communicating the positive electrode chamber 131 and the negative electrode chamber 151.
In this embodiment, the electrolyte injection holes 11c communicating the positive electrode chamber 131 and the negative electrode chamber 151 are formed in the electrode frame 11, so that the electrolyte of the electrolytic cells 100 can be supplemented more conveniently, and the electrolyte injection holes 11c of the electrolytic cells 100 can be directly conducted better when the electrolytic cells 100 are stacked, thereby reducing the arrangement of pipelines in the electrolytic assembly and further improving the assembly convenience of the electrolytic hydrogen production equipment. In a similar way, the liquid discharge holes communicating the positive electrode chamber 131 and the negative electrode chamber 151 can be used for better enabling the liquid discharge holes 11d on the plurality of electrolytic units 100 to be directly communicated when the plurality of electrolytic units 100 are stacked and combined, so that the arrangement of pipelines in an electrolytic assembly is reduced, and the assembly convenience of the electrolytic hydrogen production equipment is further improved. In the electrolytic reaction of the electrolytic unit 100, the hydroxyl ions in the negative electrode cavity 151 react to generate an alkaline solution at a certain probability, and at this time, the liquid in the positive electrode cavity 131 and the negative electrode cavity 151 is released and recovered by using the liquid discharge hole 11d after the electrolytic hydrogen production equipment operates for a certain time, so that the alkaline solution in the negative electrode cavity 151 can be discharged better by using the liquid discharge hole 11d, the alkaline solution is recycled, and the practicability and the structural reliability of the electrolytic unit 100 are further improved.
The utility model also provides an electrolysis subassembly, this electrolysis subassembly includes at least one electrolysis unit 100. The specific structure of the electrolytic unit 100 refers to the above embodiments, and since the electrolytic assembly adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
The utility model also provides an electrolysis hydrogen production equipment, this electrolysis hydrogen production equipment includes the electrolysis subassembly. The specific structure of the electrolytic assembly refers to the above embodiments, and since the electrolytic hydrogen production device adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (11)
1. An electrolysis cell, comprising:
the electrolytic device comprises an electrolytic body, a first electrode and a second electrode, wherein an electrolytic cavity is formed in the electrolytic body;
the diaphragm is arranged in the electrolytic cavity and divides the electrolytic cavity into a positive electrode cavity and a negative electrode cavity; and
electrode subassembly, electrode subassembly includes anodal net and the negative pole net that switches on with external power supply, anodal net is located in the anodal cavity, and connect in the inner chamber wall of anodal cavity, negative pole net is located in the negative pole cavity, and connect in the inner chamber wall of negative pole cavity, anodal net with negative pole net is located respectively the opposite side of diaphragm, the electrolysis chamber the diaphragm with electrode subassembly all follows the axis direction of electrolysis main part is sunken to be set up.
2. The electrolysis cell of claim 1, further comprising a support assembly, the support assembly comprising:
the first supporting piece is arranged in the positive electrode cavity and is arranged between the positive electrode net and the inner cavity wall of the positive electrode cavity; and
and the second support piece is arranged in the negative electrode cavity and is arranged between the negative electrode pole net and the inner cavity wall of the negative electrode cavity.
3. The electrolysis cell of claim 2, wherein the first support member and the second support member are both mesh structures, and both the first support member and the second support member are recessed along the central axis of the electrolysis body.
4. The electrolysis cell according to claim 1, wherein a catalytic layer is provided on the side of the positive electrode mesh facing the membrane;
and/or a catalytic layer is arranged on one side of the negative electrode grid, which faces the membrane.
5. The electrolysis cell of any one of claims 1 to 4, wherein the electrolysis body comprises:
the utmost point frame, utmost point frame is equipped with the mounting hole:
the first polar plate is connected to the hole wall of the mounting hole; and
the second polar plate is connected to the hole wall of the mounting hole and arranged at an interval with the first polar plate, and the first polar plate and the second polar plate are both arranged along the central axis of the mounting hole in a concave manner;
the diaphragm is located first polar plate with between the second polar plate, first polar plate the utmost point frame with the diaphragm encloses to close and forms positive pole cavity, the second polar plate the utmost point frame with the diaphragm encloses to close and forms negative pole cavity.
6. The electrolysis cell of claim 5, wherein the pole frame comprises:
the first polar plate is connected to the inner periphery of the first frame body, and the positive polar net is electrically conducted with the first frame body;
the second frame body is connected with the inner periphery of the second frame body through the second polar plate, and the negative polar net is electrically conducted with the second frame body; and
the two opposite sides of the insulating gasket are respectively connected with the first frame body and the second frame body, and the diaphragm is connected to the inner periphery of the insulating gasket.
7. The electrolysis cell of claim 6, wherein the first plate is welded to the first frame;
and/or the second pole plate is welded on the second frame body;
and/or defining the thickness of the insulating gasket in the direction of the central axis of the mounting hole as W, and meeting the following conditions: w is more than or equal to 3mm.
8. The electrolysis cell of claim 5, wherein the frame is provided with a first vent in communication with the positive chamber and a second vent in communication with the negative chamber.
9. The electrolysis cell according to claim 5, wherein the pole frame is provided with a liquid injection hole and a liquid discharge hole respectively communicating the positive electrode chamber and the negative electrode chamber.
10. An electrolysis assembly, characterized in that it comprises at least one electrolysis cell according to any one of claims 1 to 9.
11. An electrolytic hydrogen production apparatus comprising the electrolytic assembly of claim 10.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223111326.0U CN218779037U (en) | 2022-11-22 | 2022-11-22 | Electrolytic cell, electrolytic assembly and electrolytic hydrogen production apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223111326.0U CN218779037U (en) | 2022-11-22 | 2022-11-22 | Electrolytic cell, electrolytic assembly and electrolytic hydrogen production apparatus |
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| Publication Number | Publication Date |
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| CN218779037U true CN218779037U (en) | 2023-03-31 |
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| CN202223111326.0U Active CN218779037U (en) | 2022-11-22 | 2022-11-22 | Electrolytic cell, electrolytic assembly and electrolytic hydrogen production apparatus |
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| Country | Link |
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| CN (1) | CN218779037U (en) |
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