CN220767190U - Electrolytic stack assembly and electrolytic tank comprising same - Google Patents
Electrolytic stack assembly and electrolytic tank comprising same Download PDFInfo
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- CN220767190U CN220767190U CN202322325321.6U CN202322325321U CN220767190U CN 220767190 U CN220767190 U CN 220767190U CN 202322325321 U CN202322325321 U CN 202322325321U CN 220767190 U CN220767190 U CN 220767190U
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- 238000007789 sealing Methods 0.000 claims abstract description 60
- 230000000712 assembly Effects 0.000 claims abstract description 18
- 238000000429 assembly Methods 0.000 claims abstract description 18
- 239000011796 hollow space material Substances 0.000 claims abstract description 13
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims description 26
- 239000012528 membrane Substances 0.000 claims description 21
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 18
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 8
- 239000005060 rubber Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 229920002943 EPDM rubber Polymers 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229920001973 fluoroelastomer Polymers 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229920005560 fluorosilicone rubber Polymers 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model provides an electrolytic stack assembly and an electrolytic tank comprising the same, wherein the electrolytic stack assembly comprises a diaphragm assembly and pole frame assemblies arranged at two sides of the diaphragm assembly; the diaphragm assembly comprises a diaphragm and a frame arranged around the diaphragm; the pole frame assembly comprises a pole plate and a frame body, wherein the frame body is penetrated with a hollow space along the thickness direction, and the pole plate is detachably clamped in the hollow space of the frame body; the first mounting groove has been seted up towards one side of diaphragm subassembly to the framework, and the card is equipped with first sealing washer in the first mounting groove, and first sealing washer protrusion is in the surface of framework to establish mutually with the frame. Through setting up first sealing washer and frame and paste mutually establishing, can realize the seal between framework and the frame, realize the seal between diaphragm subassembly and the framework promptly, and then realize the seal of electrolysis heap subassembly, whole assembly process is simple and be difficult to seal failure.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to an electrolytic stack assembly and an electrolytic tank comprising the same.
Background
The energy crisis and environmental deterioration make countries around the world increase the research strength on new energy, and hydrogen energy is recognized as clean energy with development potential. The alkaline water electrolysis hydrogen production is one of the relatively mature hydrogen production methods, the operation is simple, the purity of the prepared hydrogen is high, and the method is an important means for realizing large-scale hydrogen production.
The electrolytic tank is a core device of an alkaline water electrolysis hydrogen production system, and the working environment of the alkaline electrolytic tank is relatively bad under the conditions of high temperature, high pressure and strong corrosion. Especially under the intermittent startup condition, the leakage of the electrolytic tank body is easy to cause due to thermal expansion and cold contraction, the leakage of the tank body not only affects the operation environment and the equipment safety, but also affects the service life of the electrolytic tank, and the leakage is one of the important problems restricting the development of the water electrolysis hydrogen production technology.
In the prior art, the electrolytic cell is usually sealed by adopting a sealing mode of a flat gasket, and the problems of high assembly force of the electrolytic cell, low hydrogen pressure, easy sealing failure and the like are easily caused by sealing the electrolytic cell by arranging the flat gasket between a diaphragm and a pole piece.
Disclosure of Invention
The utility model aims to overcome the defects that in the prior art, a flat gasket is arranged between a diaphragm and a pole piece to seal an electrolytic cell, so that the electrolytic cell is easy to cause large assembly force, low hydrogen pressure, easy sealing failure and the like, and provides an electrolytic stack assembly and an electrolytic cell comprising the same.
The utility model solves the technical problems by the following technical scheme:
the utility model provides an electrolytic stack assembly, which comprises a diaphragm assembly and pole frame assemblies arranged on two sides of the diaphragm assembly;
the diaphragm assembly comprises a diaphragm and a frame arranged around the diaphragm;
the pole frame assembly comprises a pole plate and a frame body, wherein the frame body is penetrated with a hollow space along the thickness direction, and the pole plate is detachably clamped in the hollow space of the frame body;
the frame body is towards one side of the diaphragm assembly is provided with a first mounting groove, a first sealing ring is clamped in the first mounting groove, and the first sealing ring protrudes out of the surface of the frame body and is attached to the frame.
In this scheme, through placing the frame at the both sides of diaphragm and protecting the diaphragm, through setting up the sealing between framework and the frame at the surface of framework with first sealing washer, avoid having the condition that shear stress leads to the diaphragm to be destroyed because first sealing washer and diaphragm direct contact. The first sealing ring is attached to the frame, sealing between the frame body and the frame can be achieved, namely sealing between the diaphragm assembly and the polar plate is achieved, sealing of the electrolytic stack assembly is achieved, and the assembly process is simple and is not easy to seal and lose efficacy.
Preferably, a titanium felt and a titanium net are further arranged between the diaphragm assembly and the polar plate in sequence, and the titanium felt is close to one side of the diaphragm assembly.
In this embodiment, the membrane assembly forms an MEA with titanium mesh and titanium felt disposed on both sides.
Preferably, the first mounting groove is provided along an outer peripheral edge of the hollow space.
In the scheme, the first sealing ring is positioned by arranging the first mounting groove, so that the first sealing ring is convenient to arrange and mount; the periphery in cavity space is located to first mounting groove, can realize sealing between diaphragm subassembly and the polar frame subassembly, and the electrolyte can be at polar plate surface contact reaction, and the gaseous unable diaphragm subassembly and the polar frame subassembly that overflows of reaction production.
Preferably, the electrolytic stack assembly further comprises an anode substrate and a cathode substrate respectively arranged outside the two pole frame assemblies;
a pressure-bearing hoop is arranged between the anode substrate and the polar frame assembly, and the pressure-bearing hoop is attached to the anode substrate;
and a second sealing ring is arranged at the joint of the pressure-bearing hoop, the polar frame assembly and the anode substrate.
In this scheme, through setting up the pressure-bearing hoop between positive pole base plate and polar frame subassembly, can be to bearing and protection polar frame subassembly.
Preferably, a second mounting groove is formed in the surface, opposite to the cathode substrate, of the frame body, and a third sealing ring is arranged in the second mounting groove.
In this scheme, the third sealing washer sets up near one side of negative pole base plate, can realize the sealed between framework and the negative pole base plate.
Preferably, the frame comprises a first layer of frame and a second layer of frame, the first layer of frame is arranged between the diaphragm and the second layer of frame, the hardness of the first layer of frame is smaller than that of the second layer of frame, and the sealing ring is attached to the second layer of frame.
In the scheme, the frames on two sides of the diaphragm adopt a double-layer structure, the hardness of the first layer of frame attached to the diaphragm is smaller than that of the second layer of frame on the outer layer, and the diaphragm is effectively prevented from being damaged by the hard structure or the shear stress between the sealing ring and the diaphragm. Meanwhile, the hardness of the first layer of frame is small, gaps on the surface of the diaphragm can be filled, and the sealing effect of the whole electrolytic stack assembly is improved.
Preferably, the first layer of frame is made of rubber;
and/or the hardness of the first layer of frame ranges from 30A to 45A;
and/or the thickness range of the first layer of frame is 0.1mm-2mm.
Preferably, the second layer of frame is made of plastic or rubber;
and/or the hardness of the second layer frame ranges from 45A to 90A;
and/or the thickness range of the second layer of frame is 0.3mm-1mm.
The utility model also provides an electrolysis cell comprising a plurality of stack assemblies as described above connected in series.
Preferably, the electrolytic tank further comprises positioning rods, the frame and the frame body of each electrolytic stack assembly are provided with corresponding positioning holes, and the positioning rods sequentially penetrate through the positioning holes to realize coaxial connection of a plurality of electrolytic stack assemblies;
the electrolytic tank also comprises a blind end plate and a movable end plate, and a plurality of electrolytic stack assemblies are arranged between the blind end plate and the movable end plate;
the electrolytic tank further comprises two groups of current collecting plates and insulating plates, the current collecting plates are respectively arranged between the blind end plate and the electrolytic stack assembly and between the movable end plate and the electrolytic stack assembly, and the current collecting plates are arranged close to one side of the electrolytic stack assembly.
In this scheme, the locating lever passes the locating hole on the electrolysis heap subassembly in proper order, can establish ties a plurality of electrolysis heap subassembly. The electrolytic stack assembly after being connected in series is arranged between the blind end plate and the movable end plate, and is connected with a circuit through the current collecting plate, and the insulating plate can insulate the blind end plate from the movable end plate, so that the safety of the electrolytic tank is improved.
The utility model has the positive progress effects that: through placing the frame at the both sides of diaphragm and protecting the diaphragm, through setting up the sealing between the frame body and the frame body with first sealing washer at the surface of frame body, avoid first sealing washer and diaphragm direct contact and exist shear stress and lead to the diaphragm to be destroyed, lead to sealed inefficacy. Therefore, the first sealing ring is attached to the frame, sealing between the frame body and the frame body can be achieved, namely sealing between the diaphragm assembly and the frame body is achieved, sealing of the electrolytic stack assembly is achieved, and the whole assembly process is simple and is not prone to sealing failure.
Drawings
Fig. 1 is an exploded view of an electrolytic stack assembly according to an embodiment of the present utility model.
Fig. 2 is a schematic view of an exploded structure of an electrolytic cell according to an embodiment of the present utility model.
Fig. 3 is a schematic structural diagram of a frame according to an embodiment of the present utility model.
Fig. 4 is a schematic perspective view of a diaphragm assembly according to an embodiment of the present utility model.
Fig. 5 is a schematic cross-sectional view of a diaphragm assembly according to an embodiment of the present utility model.
Reference numerals illustrate:
electrolytic stack assembly 100
Diaphragm assembly 110
Diaphragm 111
Frame 112
First layer frame 1121
Second layer frame 1122
Titanium mesh 113
Titanium felt 114
Pole frame assembly 120
Frame 121
Hollow space 1211
First mounting groove 1212
Second mounting groove 1213
First seal ring 122
Polar plate 123
Second seal ring 124
Third seal ring 125
Anode substrate 200
Cathode substrate 300
Pressure-bearing hoop 400
Positioning rod 500
Positioning hole 501
Blind end plate 600
Movable end plate 700
Collector plate 800
Insulating plate 900
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.
The present embodiment provides an electrolytic stack assembly 100, as shown in fig. 1-3, the electrolytic stack assembly 100 including a diaphragm assembly 110 and a pole frame assembly 120 disposed on both sides of the diaphragm assembly 110. The diaphragm assembly 110 includes a diaphragm 111 and a rim 112 disposed around the diaphragm 111. The pole frame assembly 120 comprises a pole plate 123 and a frame body 121, wherein the frame body 121 is provided with a hollow space 1211 along the thickness direction in a penetrating way, and the pole plate 123 is detachably clamped in the hollow space 1211 of the frame body 121. The frame 121 is provided with a first mounting groove 1212 facing the diaphragm assembly 110, a first sealing ring 122 is clamped in the first mounting groove 1212, and the first sealing ring 122 protrudes out of the surface of the frame 121 towards the diaphragm assembly 110 and is attached to the frame 112.
The membrane 111 is protected by placing the frames 112 on two sides of the membrane 111, and the first sealing ring 122 is arranged on the surface of the frame 121 to realize the sealing between the frame 121 and the frames 112, so that the condition that the membrane 111 is damaged due to the shearing stress caused by the direct contact between the first sealing ring 122 and the membrane 111 is avoided. The first sealing ring 122 is attached to the frame 112, so that sealing between the frame 121 and the frame 112 can be achieved, namely sealing between the diaphragm assembly 110 and the polar plate 123 is achieved, sealing of the electrolytic stack assembly 100 is achieved, and the assembly process is simple and sealing failure is not easy.
In this embodiment, a titanium felt 114 and a titanium mesh 113 are sequentially disposed between the diaphragm assembly 110 and the electrode plate 123, the titanium felt 114 is close to one side of the diaphragm assembly 110, and the diaphragm assembly 110 forms an MEA with the titanium mesh 113 and the titanium felt 114 disposed on both sides. In other embodiments, two layers of titanium mesh 113 may be disposed between the membrane assembly 110 and the pole frame assembly 120, with the membrane 111 assembly and the two layers of titanium mesh 113 to form an MEA.
The first seal 122 is an O-ring. The first sealing ring 122 is positioned by arranging the first mounting groove 1212, so that the first sealing ring 122 is convenient to arrange and mount.
The first mounting groove 1212 is provided along the outer peripheral edge of the hollow space 1211. The first installation groove 1212 is provided at the outer circumference of the hollow space 1211, so that sealing between the diaphragm assembly 110 and the electrode frame assembly 120 can be achieved, the electrolyte can contact and react on the surface of the electrode plate 123, and the gas generated by the reaction cannot escape from the diaphragm assembly 110 and the electrode frame assembly 120.
The first sealing ring 122 is easier to separate from the frame 121 so as to facilitate the disassembly and replacement of the electrolytic cell during the overhaul. In addition, the first sealing ring 122 has good insulation effect, and is not conducted with the diaphragm assembly 110, so that serious accidents such as arc burning of the electrolytic tank and explosion caused by the polar plate 123 are avoided.
The electrolytic stack assembly 100 further includes an anode substrate 200 and a cathode substrate 300 respectively disposed outside the two electrode frame assemblies 120. A pressure-bearing hoop 400 is arranged between the anode substrate 200 and the pole frame assembly 120, and the pressure-bearing hoop 400 is attached to the anode substrate 200. The connection between the pressure-bearing hoop 400 and the electrode frame assembly 120 and the anode substrate 200 is provided with a second sealing ring 124. The second seal ring 124 enables sealing between the pressure-bearing collar 400 and the pole frame assembly 120 and anode substrate 200. By providing the pressure-receiving collar 400 between the anode substrate 200 and the pole frame assembly 120, the pole frame assembly 120 can be supported and protected.
The surface of the frame 121 facing the cathode substrate 300 is provided with a second mounting groove 1213, and the second mounting groove 1213 is provided with a third seal ring 125. The third seal ring 125 is provided near one side of the cathode substrate 300, and can seal between the frame 121 and the cathode substrate 300.
As shown in fig. 4-5, the frame 112 includes a first frame 1121 and a second frame 1122, the first frame 1121 is disposed between the membrane 111 and the second frame 1122, the hardness of the first frame 1121 is smaller than that of the second frame 1122, and the first seal ring 122 is attached to the second frame 1122. The frames 112 at two sides of the membrane 111 adopt a double-layer structure, and the hardness of the first layer of frame 1121 attached to the membrane 111 is smaller than that of the second layer of frame 1122 of the outer layer, so that the membrane 111 is effectively prevented from being damaged by the hard structure or the shear stress between the first sealing ring 122 and the membrane 111. Meanwhile, the first layer frame 1121 has smaller hardness, can fill gaps on the surface of the membrane 111, and improves the sealing effect of the whole electrolytic stack assembly 100.
The first frame 1121 is made of rubber, the hardness of the first frame 1121 is 30A-45A, and the thickness of the first frame 1121 is 0.1mm-2mm. The first frame 1121 can avoid the shearing force generated by the direct contact between the hard structure and the membrane 111 from damaging the membrane 111; the first layer of frame 1121 is made of soft rubber, so that gaps on the surface of the membrane 111 in the compression process are effectively filled, and the sealing reliability of the electrolytic stack assembly 100 and the electrolytic tank is greatly improved.
The second frame 1122 is made of plastic or rubber, the hardness of the second frame 1122 is 45A-90A, and the thickness of the second frame 1122 is 0.3mm-1mm. The second frame 1122 is a rigid rubber or thermoplastic sheet that effectively maintains the desired thickness of the overall membrane 111 assembly.
In manufacturing the diaphragm assembly 110, first, a thin sheet having a relatively small thickness and conforming to the shape of the frame 112 is prepared by selecting EPDM (ethylene propylene diene monomer), fluororubber, fluorosilicone rubber, high fluororubber, or the like having relatively low hardness as the first layer frame 1121. Secondly, selecting EPDM or fluororubber with higher hardness to prepare thicker sheets or using thermoplastic plastic sheets with good alkali resistance, such as PE, PP, PEEK, PPS, PTFE, PFA, ETFE, cutting the sheets into the required shapes of the frames 112 to be used as the second-layer frames 1122. The second frame 1122 is tiled on two sides of the membrane 111 with a softer and thinner structure, and then a certain vulcanization process is selected for vulcanization, so as to prepare the membrane assembly 110 with the frame 112 with a certain thickness. The hot press mold is provided with a heating area, the related area of the diaphragm 111 is a natural cooling area, and the diaphragm assembly 110 is vulcanized and formed according to a certain vulcanization temperature.
Specifically, a sheet with the hardness of 30-45A, the compression set of less than 20% and the thickness of 0.1-2mm is cut into required sheets to form a first layer of frame 1121, the first layer of frame 1121 is laid on two sides of a membrane 111, and the first layer of frame 1121 is pre-vulcanized by heating and curing for 3-30min at the temperature of 70-90 ℃ under the fastening pressure of 0.5MPA-6 MPA. Cutting a sheet with the hardness of 45A-90A, the compression set of less than 10% and the thickness of 0.3-1mm into a required sheet to form a second layer of frame 1122, spreading the second layer of frame on two sides of the first layer of frame 1121, and heating and curing for 3-30min at the temperature of 90-150 ℃ under the fastening pressure of 0.5MPA-6 MPA. Stainless steel gaskets with the thickness of 0.05-2mm are selected to be made into limiting gaskets, and the limiting gaskets are placed on limiting columns of a hot-pressing die, so that the first-layer frame 1121 and the second-layer frame 1122 of the diaphragm assembly 110 are not excessively compressed.
This embodiment also provides an electrolysis cell comprising several stack assemblies 100 as described above connected in series, as shown in fig. 3.
The electrolytic tank further comprises positioning rods 500, the frame 112 and the frame 121 of each electrolytic stack assembly 100 are respectively provided with a corresponding positioning hole 501, and the positioning rods 500 sequentially penetrate through the positioning holes 501 to realize coaxial connection of a plurality of electrolytic stack assemblies 100. The cell further comprises a blind end plate 600 and a movable end plate 700, with several cell stack assemblies 100 being arranged between the blind end plate 600 and the movable end plate 700. The cell further comprises two sets of current collecting plates 800 and insulating plates 900, the two sets of current collecting plates 800 and insulating plates 900 are respectively arranged between the blind end plate 600 and the cell stack assembly 100 and between the movable end plate 700 and the cell stack assembly 100, and the current collecting plates 800 are arranged near one side of the cell stack assembly 100.
The positioning rods 500 sequentially pass through the positioning holes 501 on the electrolytic stack assemblies 100, so that a plurality of electrolytic stack assemblies 100 can be connected in series. The electrolytic stack assembly 100 after being connected in series is arranged between the blind end plate 600 and the movable end plate 700, and is respectively connected with a circuit through the current collecting plate 800, and the insulating plate 900 can insulate the blind end plate 600 and the movable end plate 700, so that the safety of the electrolytic tank is improved.
The electrolytic cell is manufactured by assembling the electrolytic stack assemblies 100 stacked in sequence by applying a pre-tightening force of 1-8Mpa through a die. The anode substrate 200 of one cell stack assembly 100 forms a bipolar plate when assembled with the cathode substrate 300 of an adjacent cell stack assembly 100.
The whole electrolytic tank has the advantages that only the first layer of frame and the second layer of frame are elastic bodies, other materials are rigid materials, and the assembly force of the whole electrolytic tank can be flexibly adjusted. The electrolytic stack component prepared by the embodiment has good sealing effect and high flatness. The diaphragm assembly structure can ensure that the diaphragm is not influenced by the shearing force of the sealing gasket or the rigid frame, and can optimize the contact resistance in the electrolytic tank by greatly adjusting the assembly pressure. Meanwhile, the production process of the electrolytic tank is simple, the production cost of the die is low, the problem of matching of the electrolytic tank in the early development process can be flexibly solved, and a feasibility scheme is provided for the production of the electrolytic tank in a large batch in the later stage.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.
Claims (10)
1. An electrolytic stack assembly, characterized by comprising a diaphragm assembly (110) and pole frame assemblies (120) arranged at two sides of the diaphragm assembly (110);
the diaphragm assembly (110) comprises a diaphragm (111), and a frame (112) arranged around the diaphragm (111);
the pole frame assembly (120) comprises a pole plate (123) and a frame body (121), wherein the frame body (121) is provided with a hollow space (1211) in a penetrating manner along the thickness direction, and the pole plate (123) is detachably clamped in the hollow space (1211) of the frame body (121);
the diaphragm assembly comprises a diaphragm assembly (110), a frame body (121) and a frame (112), wherein a first mounting groove (1212) is formed in one side of the frame body (121) facing the diaphragm assembly, a first sealing ring (122) is clamped in the first mounting groove (1212), and the first sealing ring (122) protrudes out of the surface of the frame body (121) and is attached to the frame (112).
2. The electrolytic stack assembly according to claim 1, wherein a titanium felt (114) and a titanium mesh (113) are further arranged between the diaphragm assembly (110) and the polar plate (123) in sequence, and the titanium felt (114) is close to one side of the diaphragm assembly (110).
3. The cell stack assembly of claim 1, wherein the first mounting groove (1212) is disposed along the peripheral edge of the hollow space (1211).
4. The cell stack assembly of claim 1, further comprising an anode substrate (200) and a cathode substrate (300) disposed outside two of the pole frame assemblies (120), respectively;
a pressure-bearing hoop (400) is arranged between the anode substrate (200) and the polar frame assembly (120), and the pressure-bearing hoop (400) is attached to the anode substrate (200);
and the connection parts of the pressure-bearing hoop (400) and the anode frame assembly (120) and the anode substrate (200) are respectively provided with a second sealing ring (124).
5. The electrolytic stack assembly according to claim 4, wherein a second mounting groove (1213) is provided on a surface of the frame body (121) facing the cathode substrate (300), and a third sealing ring (125) is provided in the second mounting groove (1213).
6. The electrolytic stack assembly of claim 1, wherein the frame (112) comprises a first layer frame (1121) and a second layer frame (1122), the first layer frame (1121) is disposed between the membrane (111) and the second layer frame (1122), the first layer frame (1121) has a hardness less than the second layer frame (1122), and the sealing ring (122) is attached to the second layer frame (1122).
7. The electrolytic stack assembly of claim 6, wherein the first layer of rims (1121) are rubber;
and/or the hardness of the first layer frame (1121) is 30A-45A;
and/or, the thickness of the first layer frame (1121) is 0.1mm-2mm.
8. The electrolytic stack assembly of claim 6, wherein the second layer of rims (1122) is a plastic material or a rubber material;
and/or the hardness of the second-layer frame (1122) is 45A-90A;
and/or, the thickness of the second layer frame (1122) is 0.3mm-1mm.
9. An electrolysis cell comprising a plurality of stack assemblies according to any one of claims 1-8 connected in series.
10. The electrolytic cell according to claim 9, further comprising positioning rods (500), wherein the frame (112) and the frame body (121) of each electrolytic stack assembly are provided with corresponding positioning holes (501), and the positioning rods (500) sequentially pass through the positioning holes (501) to realize coaxial connection of a plurality of electrolytic stack assemblies;
the electrolytic cell further comprises a blind end plate (600) and a movable end plate (700), and a plurality of electrolytic stack assemblies are arranged between the blind end plate (600) and the movable end plate (700);
the electrolytic cell further comprises two groups of current collecting plates (800) and insulating plates (900), wherein the current collecting plates are respectively arranged between the blind end plate (600) and the electrolytic stack assembly and between the movable end plate (700) and the electrolytic stack assembly, and the current collecting plates (800) are arranged close to one side of the electrolytic stack assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322325321.6U CN220767190U (en) | 2023-08-28 | 2023-08-28 | Electrolytic stack assembly and electrolytic tank comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322325321.6U CN220767190U (en) | 2023-08-28 | 2023-08-28 | Electrolytic stack assembly and electrolytic tank comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220767190U true CN220767190U (en) | 2024-04-12 |
Family
ID=90605243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322325321.6U Active CN220767190U (en) | 2023-08-28 | 2023-08-28 | Electrolytic stack assembly and electrolytic tank comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220767190U (en) |
-
2023
- 2023-08-28 CN CN202322325321.6U patent/CN220767190U/en active Active
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