CN116240565A - Alkaline hydrogen production electrolytic tank and system - Google Patents

Abstract

The invention relates to the technical field of electrolytic hydrogen production, in particular to an alkaline hydrogen production electrolytic tank and an alkaline hydrogen production system, wherein the alkaline hydrogen production electrolytic tank comprises two pressing plates and a plurality of polar frames arranged between the two pressing plates, alkali liquor is conveyed into a distribution chamber positioned in the middle position through a conveying pipe on a cylindrical inner wall formed by the polar frames by a first feeding port on each of the pressing plates on the two sides, and then is distributed into reaction chambers of different groups along the distribution pipe by the distribution chamber to participate in electrolytic reaction, and the prepared hydrogen and oxygen are respectively conveyed to a first discharging port and a second discharging port on each of the pressing plates on the two sides along a first discharging pipe and a second discharging pipe and then are output. Through the distribution of distribution room and distributing pipe, can be with the parallel distribution of alkali lye by the distribution room to among the reaction chamber of different groups, shortened the route and the time that the alkali lye reachd both sides reaction chamber to reach in evenly flowing to each group reaction chamber with the alkali lye, thereby improved the flow direction of alkali lye in whole electrolysis trough, so as to reach that the alkali lye flows more evenly, further make the reaction chamber temperature more even.

Description

Alkaline hydrogen production electrolytic tank and system

Technical Field

The invention relates to the technical field of electrolytic hydrogen production, in particular to an alkaline hydrogen production electrolytic tank and an alkaline hydrogen production electrolytic system.

Background

Electrolytic hydrogen production is a process in which alkaline solution is decomposed into hydrogen and oxygen in an electrolytic tank by an electrolytic method. The electrolytic cell is generally composed of a cell body, an anode and a cathode, and the anode chamber and the cathode chamber are separated by a diaphragm. When the direct current passes through the electrolytic cell, oxidation reaction occurs at the interface between the anode and the solution, and reduction reaction occurs at the interface between the cathode and the solution, so as to produce hydrogen and oxygen.

Because of the low current density of the individual electrolysis cells separated by the membrane, three to four hundred cells are typically stacked to increase hydrogen production yield.

In the electrolytic cells in the prior art, alkali liquor flows from one end cell to the other end cell, and the alkali liquor is unevenly distributed in each cell due to the excessive number of the cells, so that the temperature of each electrolytic cell is different, and the local high temperature causes the diaphragm to burn through locally.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect of uneven alkali liquor distribution in each cell in the prior art.

In order to solve the above problems, the present invention provides an alkaline hydrogen production electrolytic cell comprising:

two clamp plates and set up two a plurality of polar frames between the clamp plate, a plurality of the polar frame forms the lateral wall of tube-shape, and is adjacent pass through the diaphragm separation between the polar frame to form a plurality of cavities, a plurality of cavities are including the distribution chamber that is located the middle part, and are located the reaction chamber of distribution chamber both sides, be equipped with the polar plate in the reaction chamber, still be equipped with conveying pipe, distributing pipe, first discharging pipe and second discharging pipe in the lateral wall, the one end of conveying pipe is in form first feed inlet on the clamp plate, the other end with the distribution chamber intercommunication, the distributing pipe with distribution chamber and a plurality of the reaction chamber all communicates, first discharging pipe with the second discharging pipe is in form first discharge gate and second discharge gate on the clamp plate, and first discharging pipe with the second discharging pipe all communicates with a plurality of the reaction chamber all.

Further, the alkaline hydrogen production electrolytic tank, the polar frame comprises:

the first electrode frame is internally provided with a first cavity, the first electrode frame is suitable for being connected with a positive electrode, the bottom end of the first electrode frame is provided with a plurality of second feed inlets communicated with the feed pipes and a plurality of first distribution holes communicated with the distribution pipes, the inner wall of the first electrode frame is provided with a plurality of first communication holes and second communication holes, the first communication holes are communicated with the second feed inlets and the first cavity, the second communication holes are communicated with the first distribution holes and the first cavity, the top end of the first electrode frame is provided with a third discharge port communicated with the first discharge pipe and a fourth discharge port communicated with the second discharge pipe, the side wall of the first electrode frame is provided with a plurality of first guide grooves, the first guide grooves are communicated with the first cavity, the side wall of the first electrode frame is provided with at least one second guide groove, the second guide grooves are communicated with the third discharge port and the cavity or the fourth guide grooves are communicated with the first discharge port and the first guide grooves, and the first electrode frame is positioned on the opposite side of the first electrode frame;

the inside second cavity that is equipped with of a plurality of second frames, the second frame is suitable for being connected with the negative pole, the second frame is located the both sides of first frame, and a plurality of the second frame divide into the multiunit, second frame bottom be equipped with a plurality of with the third feed inlet that the conveying pipe is linked together and with the second distribution mouth that the distributing pipe is linked together, the third feed inlet with the second feed inlet is linked together, every group on the second frame the second distribution mouth quantity is along keeping away from the direction of first frame is the setting of being progressively reduced, the second distribution mouth with first distribution mouth is linked together, the second frame top be equipped with the fifth discharge gate that the first discharging pipe is linked together and with the sixth discharge gate that the second discharging pipe is linked together, a plurality of third guiding gutter have been seted up on the second frame both sides wall, the third guiding gutter intercommunication second distribution mouth with the second cavity, at least fourth guiding gutter has been seted up on the second frame lateral wall, the fourth guiding gutter and the fourth discharge mouth is located the second and the second frame is linked together with the fifth discharge mouth.

Further, the alkaline hydrogen production electrolytic cell further comprises:

and the gasket is arranged between the polar plate and the first polar frame and between the polar plate and the second polar frame.

Further, the position of the second distribution opening of the alkaline hydrogen production electrolytic tank, which is far away from the first polar frame, is higher than the height of the second distribution opening, which is close to the first polar frame.

Further, in the alkaline hydrogen production electrolytic tank, a discharge port is further formed in the pressing plate and communicated with the reaction chamber, and the height of the discharge port is lower than that of the second feeding port.

Further, the alkaline hydrogen production electrolytic cell further comprises:

the first wiring board is arranged on the outer wall of the first pole frame;

and the second wiring board is arranged on the outer wall of the second pole frame.

Further, in the alkaline hydrogen production electrolytic tank, the pressing plates are provided with a plurality of mounting holes, and the fixing components are detachably arranged in the mounting holes on the two pressing plates.

Further, this alkaline hydrogen production electrolysis cell, the fixed subassembly includes:

the pull rod is arranged in the mounting hole, and threads are arranged at two ends of the pull rod;

nuts are arranged at two ends of the pull rod;

the butterfly-shaped elastic sheet is sleeved on the pull rod and is positioned between the nut and the pressing plate.

The invention also provides an alkaline hydrogen production system which comprises the alkaline hydrogen production electrolytic tank.

Further, the alkaline hydrogen production system further comprises:

the circulator is communicated with the feed inlets on the two pressing plates;

and the gas-liquid separator is connected with the first discharge port, the second discharge port and the circulator.

The invention has the following advantages:

1. the invention provides an alkaline hydrogen production electrolytic tank, which comprises two pressing plates and a plurality of polar frames arranged between the two pressing plates, wherein the polar frames form cylindrical side walls, adjacent polar frames are separated by diaphragms to form a plurality of chambers, the chambers comprise distribution chambers positioned in the middle and reaction chambers positioned at two sides of the distribution chambers, a group of reaction chambers are arranged between the adjacent reaction chambers, the reaction chambers at two sides are divided into a plurality of groups, polar plates are arranged in the reaction chambers, a feeding pipe, a distribution pipe, a first discharging pipe and a second discharging pipe are further arranged in the side walls, one end of the feeding pipe forms a first feeding hole on the pressing plate, the other end of the feeding pipe is communicated with the distribution chamber, the distribution pipe is correspondingly divided into a plurality of groups of distribution pipes in the reaction chambers, the distribution pipe of each group is communicated with the reaction chambers of a corresponding group, the first discharging pipe and the second discharging pipe form a first discharging hole and a second discharging hole on the pressing plate, and the first discharging pipe and the second discharging pipe are both communicated with the reaction chambers.

When hydrogen is produced, alkali liquor is conveyed into a distribution chamber positioned in the middle part by a first feeding port on the pressing plates on the two sides through a feeding pipe on the cylindrical inner wall formed by a plurality of polar frames, and then is distributed into reaction chambers of different groups along the distribution pipe by the distribution chamber to participate in electrolytic reaction, and the produced hydrogen and oxygen are respectively conveyed to a first discharging port and a second discharging port on the pressing plates on the two sides along a first discharging pipe and a second discharging pipe and then are output. Through the distribution of distribution room and distribution pipe, can be with the parallel distribution of alkali lye by the distribution room to among the reaction chamber of different groups, shortened the route and the time that the alkali lye reachd both sides reaction chamber to reach in with alkali lye evenly flow direction in each group reaction chamber, thereby improved the flow direction of alkali lye in whole electrolysis trough, so as to reach that alkali lye flows more evenly, further make the reaction chamber temperature more even, avoid the high temperature of alkali lye temperature in the reaction chamber to cause local burning through of local high temperature messenger diaphragm.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an alkaline hydrogen-producing electrolyzer provided in an embodiment of the invention;

FIG. 2 is a schematic diagram of the flow of lye in an alkaline hydrogen production electrolyzer provided in an embodiment of the present invention;

FIG. 3 is a front view of a platen in an alkaline hydrogen-producing electrolyzer provided in an embodiment of the present invention;

FIG. 4 is a front view of a first pole frame in an alkaline hydrogen-producing electrolyzer provided in an embodiment of the invention;

FIG. 5 is an enlarged schematic view of FIG. 4 at A;

FIG. 6 is a front view of a first set of second pole frames in an alkaline hydrogen plant cell provided in an embodiment of the invention;

FIG. 7 is a front view of a second set of second pole frames in an alkaline hydrogen plant cell provided in an embodiment of the invention;

FIG. 8 is a front view of an nth group of second frames in an alkaline hydrogen producing electrolyzer provided in an embodiment of the invention;

fig. 9 is an enlarged schematic view of fig. 6B.

Reference numerals illustrate:

1. a pressing plate; 11. a first feed port; 12. a first discharge port; 13. a second discharge port; 14. a discharge port; 15. a mounting hole;

2. a pole frame; 21. a first pole frame; 211. a second feed inlet; 212. a first dispensing port; 213. a first communication hole; 214. a second communication hole; 215. a third discharge port; 216. a fourth discharge port; 217. a first diversion trench; 218. a second diversion trench;

22. a second electrode frame; 221. a third feed inlet; 222. a second dispensing port; 223. a fifth discharge port; 224. a sixth discharge port; 225. a third diversion trench; 226. a fourth diversion trench; 23. a first wiring board; 24. a second wiring board;

3. a dispensing chamber; 4. a reaction chamber; 5. a feed pipe; 6. a dispensing tube; 7. a first discharge pipe; 8. a second discharge pipe; 9. a fixing assembly; 91. a pull rod; 92. a nut; 93. a dish-shaped elastic piece.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Example 1

As shown in fig. 1 to 9, an alkaline hydrogen production electrolytic tank provided in this embodiment includes two pressing plates 1 and a plurality of electrode frames 2 disposed between the two pressing plates 1, wherein the plurality of electrode frames 2 form a cylindrical side wall, adjacent electrode frames 2 are separated by a diaphragm to form a plurality of chambers, the plurality of chambers include a distribution chamber 3 located in the middle, and reaction chambers 4 located at two sides of the distribution chamber 3, a group is formed between the plurality of adjacent reaction chambers 4, the reaction chambers 4 at two sides are divided into a plurality of groups, polar plates are disposed in the reaction chambers 4, a feeding pipe 5, a distribution pipe 6, a first discharging pipe 7 and a second discharging pipe 8 are further disposed in the side wall, one end of the feeding pipe 5 forms a first feeding port 11 on the pressing plate 1, the other end is communicated with the distribution chamber 3, the distribution pipe 6 is communicated with the distribution chamber 3 and the plurality of reaction chambers 4, the distribution pipes 6 in the plurality of groups are correspondingly divided into a plurality of groups, the distribution pipe 6 of each group is communicated with the distribution chamber 3 and the reaction chambers 4 of the corresponding small group, the first discharging pipe 7 and the second discharging pipe 8 form a first discharging port 12 on the pressing plate 1 and a second discharging pipe 8 are communicated with the second discharging port 13.

When hydrogen is produced, alkali liquor is conveyed into the distribution chamber 3 positioned in the middle position through the feeding pipe 5 on the cylindrical inner wall formed by the plurality of pole frames 2 by the first feeding holes 11 on the two-side pressing plates 1, then is distributed into the reaction chambers 4 of different groups along the distribution pipe 6 by the distribution chamber 3 to participate in electrolytic reaction, and the produced hydrogen and oxygen are respectively conveyed to the first discharging hole 12 and the second discharging hole 13 on the two-side pressing plates 1 along the first discharging pipe 7 and the second discharging pipe 8 and then are output. Through the distribution of the distribution chamber 3 and the distribution pipe 6, the alkali liquor can be distributed to the reaction chambers 4 of different groups in parallel from the distribution chamber 3, so that the path and time for the alkali liquor to reach the reaction chambers 4 at two sides are shortened, and the alkali liquor uniformly flows into the reaction chambers 4 of each group, thereby improving the flow direction of the alkali liquor in the whole electrolytic tank, ensuring that the alkali liquor flows more uniformly, further ensuring that the temperature of the reaction chambers 4 is more uniform, and avoiding the local burning-through of a diaphragm caused by local high temperature due to overhigh temperature of the alkali liquor in the reaction chambers 4.

In this embodiment, the reaction chambers 4 are not specifically limited, and in order to meet the practical situation, the reaction chambers 4 are provided with a plurality of reaction chambers, for example, the total number of the reaction chambers 4 is 360, the reaction chambers 4 on both sides are 180 respectively, the reaction chambers 4 on each side are divided into 3 groups, the reaction chambers 4 on each group are 60 respectively, in other embodiments not shown, the reaction chambers 4 on each side can be divided into other groups, for example, 4 groups, 5 groups … … or n groups, etc., and the number of the reaction chambers 4 in each group is distributed according to the average corresponding number of the groups.

In this embodiment, the feeding pipes 5 are not specifically limited, and two feeding pipes 5 are symmetrically arranged in this embodiment to conform to the actual situation.

The distribution pipes 6 are not particularly limited in this embodiment, and in order to meet the practical situation, the distribution pipes 6 are provided in a plurality, for example, the reaction chambers 4 on each side are divided into 3 groups, the distribution pipes 6 are correspondingly divided into 3 groups, wherein each group of corresponding distribution pipes 6 is symmetrically provided in two, and each group of distribution pipes 6 is communicated to the reaction chambers 4 of the corresponding group by the distribution chamber 3. In other embodiments, not shown, the distribution pipes 6 may be arranged in a corresponding number of groups according to the number of groups of reaction chambers 4.

In this embodiment, the number of the first discharging pipes 7 and the second discharging pipes 8 is not specifically limited, and in order to meet the practical situation, in this embodiment, one first discharging pipe 7 and one second discharging pipe 8 are respectively provided, and in other embodiments, which are not shown, a plurality of first discharging pipes 7 and second discharging pipes 8 may be provided.

As shown in fig. 3, the pressure plate 1 in this embodiment is provided with two first feeding ports 11 which are communicated with the feeding pipe 5, and a first discharging port 12 and a second discharging port 13 which are respectively communicated with the first discharging pipe 7 and the second discharging pipe 8.

As shown in fig. 2 and fig. 4 to fig. 8, the pole frame 2 in the present embodiment includes a first pole frame 21 and a plurality of second pole frames 22, wherein the first pole frame 21 is located at a middle position, and the plurality of second pole frames 22 are symmetrically disposed at two sides of the first pole frame 21.

As shown in fig. 4 and 5, a first cavity is formed inside the first pole frame 21, the first pole frame 21 is suitable for being connected with a positive electrode, a plurality of second feeding holes 211 communicated with the feeding pipe 5 and a plurality of first distributing holes 212 communicated with the distributing pipe 6 are formed at the bottom end of the first pole frame 21, a plurality of first communicating holes 213 and second communicating holes 214 are formed in the inner wall of the first pole frame 21, and the first communicating holes 213 are communicated with the second feeding holes 211 and the first cavity. The second communication hole 214 is communicated with the first distribution hole 212 and the first cavity, the top end of the first pole frame 21 is provided with a third discharge hole 215 communicated with the first discharge pipe 7 and a fourth discharge hole 216 communicated with the second discharge pipe 8, the side wall of the first pole frame 21 is provided with a plurality of first diversion trenches 217, the first diversion trenches 217 are communicated with the first distribution hole 212 and the first cavity, the side wall of the first pole frame 21 is provided with at least one second diversion trench 218, the second diversion trench 218 is communicated with the third discharge hole 215 and the first cavity or the fourth discharge hole 216 and the first cavity, and the first diversion trenches 217 and the second diversion trenches 218 are positioned on the opposite side of the first pole frame 21.

In this embodiment, the second diversion trench 218 is communicated with the third discharge hole 215 and the first cavity, the produced hydrogen is output from the first cavity to the third discharge hole 215 along the second diversion trench 218, and in other embodiments not shown, the second diversion trench 218 is communicated with the fourth discharge hole 216 and the first cavity, and the produced oxygen is output from the first cavity to the fourth discharge hole 216 along the second diversion trench 218.

As shown in fig. 6 to 8, a second cavity is formed inside the second frame 22, the second frame 22 is suitable for being connected with a negative electrode, the second frame 22 is located at two sides of the first frame 21, the second frames 22 are divided into a plurality of groups, a plurality of third feed inlets 221 communicated with the feed pipe 5 and second distribution holes 222 communicated with the distribution pipe 6 are formed at the bottom end of the second frame 22, the third feed inlets 221 are communicated with the second feed inlets 211, the number of the second distribution holes 222 on each group of the second frames 22 is gradually decreased along the direction far away from the first frame 21, the second distribution holes 222 are communicated with the first distribution holes 212, a fifth discharge outlet 223 communicated with the first discharge pipe 7 and a sixth discharge outlet 224 communicated with the second discharge pipe 8 are formed at the top end of the second frame 22, a plurality of third guide grooves 225 are formed in two side walls of the second frame 22, the third guide grooves 225 are communicated with the second cavity, at least one fourth guide groove 226 is formed in the side walls of the second frame 22, the fourth guide grooves 226 are communicated with the fifth discharge outlet 223 and the sixth discharge outlet 224 are communicated with the sixth discharge outlet 224, and the fourth guide grooves 226 are communicated with the sixth discharge outlet 224 are located at two sides of the fifth discharge outlet 224.

As shown in fig. 9, in the present embodiment, two fourth diversion trenches 226 are formed on the side wall of the second frame 22, the fourth diversion trenches 226 are respectively located at two sides of the second frame 22, the fourth diversion trench 226 at one side is communicated with the fifth discharge hole 223 and the second cavity, and the fourth diversion trench 226 at the other side is communicated with the sixth discharge hole 224 and the second cavity. The produced hydrogen and oxygen are respectively delivered to the fifth discharge hole 223 and the sixth discharge hole 224 by the fourth diversion trenches 226 on the two sides of the second cavity.

In this embodiment, the first cavity is a distribution chamber 3, and the second cavity is a reaction chamber 4.

The second feeding hole 211 on the first polar frame 21 and the third feeding hole 221 on the second polar frame 22 are communicated to form a feeding pipe 5, the first feeding hole 11 on the pressing plates 1 on two sides is communicated with the third feeding hole 221 on the second polar frame 22, and the first communicating hole 213 on the inner wall of the first polar frame 21 can convey alkali liquor from the feeding pipe to the first cavity. The second communication hole 214 on the first electrode frame 21 further distributes the alkali solution from the first cavity to each of the component pipes 6 through the first distribution hole.

In the present embodiment, gaskets are provided between the electrode plate and the first electrode frame 21 and between the electrode plate and the second electrode frame 22.

As shown in fig. 6 to 8, the positions of the second distribution openings 222 on the second frames 22 far from the first frame 21 are higher than the heights of the second distribution openings 222 near the first frame 21, that is, the second frames 22 are sequentially divided into a first group, a second group … … and an nth group from the first frame 21 to the pressing plates 1 on both sides, the second distribution openings 222 on the second frames 22 of the first group are positioned at the lowest positions on the second frames 22, the heights of the second distribution openings 222 on the second frames 22 of the second group to the nth group are gradually increased, so that when the alkali lye is distributed from the distribution chamber 3 to the reaction chambers 4 of the plurality of groups, the alkali lye is more uniform, the alkali lye temperature in the reaction chambers 4 which participate in the reaction is avoided when the alkali lye sequentially flows through the reaction chambers 4 of each group, and the alkali lye temperature in the reaction chambers 4 is higher when the alkali lye sequentially flows through the reaction chambers 4 of the later groups, so that the alkali lye temperature in each reaction chamber 4 is different, the reaction effects in different reaction chambers 4 are caused, the electrolysis tanks in the application can uniformly distribute the alkali lye into each reaction chamber 4, so that the alkali lye in each reaction chamber 4 is uniformly distributed to each reaction chamber 4, and the alkali lye temperature is the same.

As shown in fig. 3, the pressure plate 1 is also provided with a discharge port 14 communicated with the reaction chamber 4, the height of the discharge port 14 is lower than that of the second feed port 211, and alkaline liquid in the alkaline hydrogen production electrolytic tank can be discharged through the discharge port 14.

As shown in fig. 1, the present embodiment further includes a first wiring board 23 disposed on an outer wall of the first pole frame 21 and a second wiring board 24 disposed on an outer wall of the second pole frame 22, where the first wiring board 23 is connected to a positive electrode of a power supply, and the second wiring board 24 is connected to a negative electrode of the power supply, and the power supply in this embodiment is a dc power supply.

The first wiring board 23 is not particularly limited in this embodiment, and two first wiring boards 23 are provided in this embodiment to conform to the actual situation.

The second wiring board 24 is not specifically limited in this embodiment, and two second wiring boards 24 are provided in this embodiment, and are respectively disposed on the outer walls of the second frame 22 adjacent to the two side pressing boards 1, in order to meet the practical situation.

As shown in fig. 3, the pressing plates 1 are provided with a plurality of mounting holes 15, and a plurality of fixing assemblies 9 are detachably mounted in the mounting holes 15 on the two pressing plates 1.

In this embodiment, fixed subassembly 9 includes pull rod 91, nut 92 and butterfly shell fragment, and pull rod 91 installs in mounting hole 15, and pull rod 91 both ends are equipped with the screw thread, and nut 92 installs at pull rod 91 both ends, and butterfly shell fragment cover is established on pull rod 91, is located between nut 92 and clamp plate 1, and it is firm to install clamp plate 1 and polar frame 2 through fixed subassembly 9, has increased the steadiness of electrolysis trough, also is convenient for later maintenance simultaneously, through dismantling fixed subassembly 9 alright decompose clamp plate 1 and polar frame 2.

Example 2

The invention also provides an alkaline hydrogen production system, which adopts the alkaline hydrogen production electrolytic tank in the embodiment 1.

In this embodiment, the device further comprises a circulator and a gas-liquid separator, the circulator is communicated with the feed inlets and the gas-liquid separator on the two pressing plates 1, and the gas-liquid separator is connected with the first discharge hole 12 and the second discharge hole 13.

Direct current is conducted on the first wiring board 23 and the second wiring board 24, pure water in the alkali liquor is electrolyzed in each reaction chamber 4, oxygen is generated on the positive side of hydrogen generated on the negative side, the generated oxygen alkali liquor and hydrogen alkali liquor mixture is output to the gas-liquid separator through the first discharge port 12 and the second discharge port 13, crude hydrogen and crude oxygen are obtained, the separated alkali liquor is input into the alkaline hydrogen production electrolytic tank again through the circulator so as to meet the continuous electrolysis requirement, and meanwhile pure water consumed by electrolysis is supplemented according to the water level of the gas-liquid separator.

According to the alkaline hydrogen production system, through the distribution of the alkali liquor by the distribution chamber 3 and the distribution pipe 6, the alkali liquor can be distributed to different groups of reaction chambers 4 in parallel by the distribution chamber 3, so that the path and time for the alkali liquor to reach the reaction chambers 4 at two sides are shortened, the alkali liquor uniformly flows into the reaction chambers 4 at each group, the flowing direction of the alkali liquor in the whole electrolytic tank is improved, the alkali liquor flows more uniformly, the temperature of the reaction chambers 4 is further more uniform, and the problem that the diaphragm is partially burnt due to the fact that the temperature of the alkali liquor in the reaction chambers 4 is too high is avoided.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims (10)

1. An alkaline hydrogen production electrolyzer comprising:

two clamp plates (1) and set up two a plurality of polar frames (2) between clamp plate (1), a plurality of polar frames (2) form the lateral wall of tube-shape, and is adjacent pass through the diaphragm separation between polar frames (2) to form a plurality of cavities, a plurality of cavities are including being located distribution chamber (3) at middle part, and be located reaction chamber (4) of distribution chamber (3) both sides, be equipped with the polar plate in reaction chamber (4), still be equipped with feed pipe (5), distribution pipe (6), first discharging pipe (7) and second discharging pipe (8) in the lateral wall, one end of feed pipe (5) is in form first feed inlet (11) on clamp plate (1), the other end with distribution chamber (3) intercommunication, distribution pipe (6) with distribution chamber (3) and a plurality of reaction chamber (4) all communicate, first discharging pipe (7) with second discharging pipe (8) are in clamp plate (1) form first discharge gate (12) and second discharge gate (13), and first discharging pipe (7) all communicate with second discharging pipe (8).

2. Alkaline hydrogen cell according to claim 1, characterized in that the polar frame (2) comprises:

the first electrode frame (21), its inside is first cavity, first electrode frame (21) is suitable for being connected with the anodal, first electrode frame (21) bottom be equipped with a plurality of with second feed inlet (211) that feed tube (5) are linked together and with first distribution mouth (212) that distribution tube (6) are linked together, first electrode frame (21) inner wall is equipped with a plurality of first communication holes (213) and second intercommunicating pore (214), first communication hole (213) intercommunication second feed inlet (211) with first cavity, second intercommunicating pore (214) intercommunication first distribution mouth (212) with first cavity, first electrode frame (21) top be equipped with first discharge tube (7) be linked together with fourth discharge mouth (216) that second discharge tube (8) are linked together, a plurality of first guiding gutter (217) have been seted up on first electrode frame (21) lateral wall, first guide gutter (216) are linked together with first discharge mouth (218) are linked together at least first cavity (218), the first diversion trench (217) and the second diversion trench (218) are positioned at the opposite side of the first pole frame (21);

the inside of the second frames (22) is provided with a second cavity, the second frames (22) are suitable for being connected with a negative electrode, the second frames (22) are positioned at two sides of the first frames (21) and are divided into a plurality of groups, the bottom ends of the second frames (22) are provided with a plurality of third feeding holes (221) communicated with the feeding pipe (5) and second distributing holes (222) communicated with the distributing pipe (6), the third feeding holes (221) are communicated with the second feeding holes (211), the number of the second distributing holes (222) on each group of the second frames (22) is gradually reduced along the direction far away from the first frames (21), the second distributing holes (222) are communicated with the first distributing holes (212), the top ends of the second frames (22) are provided with a fifth feeding hole (221) communicated with the first discharging pipe (7) and a second distributing groove (222) communicated with the second guiding groove (225), the second guiding holes (222) are communicated with the second side walls (8), the second side walls (225) are provided with the second side walls (22), the fourth diversion trench (226) is communicated with the fifth discharge hole (223) and the second cavity and communicated with the sixth discharge hole (224) and the second cavity, and the fourth diversion trench (226) which is communicated with the fifth discharge hole (223) and the sixth discharge hole (224) is positioned at two sides of the second frame (22) which are away from each other.

3. The alkaline hydrogen cell of claim 2 further comprising:

and gaskets are arranged between the polar plate and the first polar frame (21) and between the polar plate and the second polar frame (22).

4. Alkaline hydrogen plant cell according to claim 2, characterized in that the second distribution opening (222) at a distance from the first polar frame (21) is located higher than the second distribution opening (222) at a distance from the first polar frame (21).

5. Alkaline hydrogen cell according to claim 4, characterized in that the pressure plate (1) is further provided with a discharge opening (14), the discharge opening (14) is communicated with the reaction chamber (4), and the height of the discharge opening (14) is lower than that of the second feed opening (211).

6. The alkaline hydrogen plant cell of any one of claims 2 to 5 further comprising:

a first wiring board (23) provided on the outer wall of the first pole frame (21);

and a second wiring board (24) arranged on the outer wall of the second pole frame (22).

7. Alkaline hydrogen cell according to claim 6, characterized in that the pressure plates (1) are provided with a plurality of mounting holes (15), and the fixing assembly (9) is detachably mounted in the mounting holes (15) on two pressure plates (1).

8. Alkaline hydrogen-producing electrolyzer according to claim 7, characterized in that the fixing assembly (9) comprises:

the pull rod (91) is arranged in the mounting hole (15), and threads are arranged at two ends of the pull rod (91);

nuts (92) mounted on both ends of the tie rod (91);

the butterfly-shaped elastic sheet (93) is sleeved on the pull rod (91) and is positioned between the nut (92) and the pressing plate (1).

9. An alkaline hydrogen production system comprising an alkaline hydrogen production cell as claimed in any one of claims 1 to 8.

10. The alkaline hydrogen production system of claim 9 further comprising:

the circulator is communicated with the feed inlets (11) on the two pressing plates (1);

and the gas-liquid separator is connected with the first discharge port (12), the second discharge port (13) and the circulator.

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