CN218621063U

CN218621063U - Hydrogen production electrolytic tube structure

Info

Publication number: CN218621063U
Application number: CN202223166910.6U
Authority: CN
Inventors: 徐叶飞; 刘杨; 秦梦璐
Original assignee: Sichuan Zhongqing Ruichuang Hydrogen Energy Power Technology Co ltd
Current assignee: Sichuan Zhongqing Ruichuang Hydrogen Energy Power Technology Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-03-14
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses a hydrogen production electrolytic tube structure, which is used as an independent sealed container for preparing hydrogen through electrolyzing water in the interior, and comprises a split type shell body which is mutually buckled, wherein the split type shell body is fixed in the interior through screw tightening to form two cavities which are separated by a membrane electrode, and the split type shell body is provided with a circulating water pipe and an exhaust pipe which are respectively connected with the two cavities; the split type shell comprises at least one insulated annular piece, an annular electrode clamping groove with the radius smaller than the outer diameter of the annular piece is arranged on the inner side of the annular piece, and a membrane electrode connected with an external circuit is fixed through the electrode clamping groove; the split housing further includes an electrode cover covering the annular member.

Description

Hydrogen production electrolytic tube structure

Technical Field

The utility model belongs to the technical field of new forms of energy hydrogen manufacturing equipment, concretely relates to hydrogen production electrolytic tube structure.

Background

The water electrolysis hydrogen production is a convenient method for producing hydrogen. Direct current is introduced into an electrolytic cell filled with electrolyte, and water molecules are subjected to electrochemical reaction on electrodes and are decomposed into hydrogen and oxygen. Specifically, when a direct current is applied to some of the aqueous electrolyte solutions, the decomposed substances are not related to the original electrolyte, and water is decomposed as a solvent, and the original electrolyte remains in the water. Such as sulfuric acid, sodium hydroxide, potassium hydroxide, and the like, are among such electrolytes. In the electrolysis of water, because pure water has a very low ionization degree and a low conductivity, and is a typical weak electrolyte, the electrolyte needs to be added to increase the conductivity of the solution, so that water can be smoothly electrolyzed into hydrogen and oxygen.

Since hydrogen can be used as an industrial raw material or energy in modern industry and energy industry, most of the prior processes for preparing hydrogen adopt a route for preparing hydrogen from natural gas or water gas, and have lower cost. In the existing renewable energy development, because a plurality of novel power generation devices such as solar energy, wind energy and the like are adopted, the electric energy generated by the method is not stable enough, and cannot be directly connected to a power grid for power supply on the premise of reaching a certain loading capacity, and the characteristic is that the electric energy cannot be output with continuous and stable power. In the process of advancing new energy power generation at a high speed, the unstable current needs to be stored and utilized urgently, and the method is a better complementary relation in the hydrogen preparation process.

By utilizing the 'garbage electricity' to prepare hydrogen, a large-scale water electrolysis hydrogen production device is built, and comprises an electrolytic bath, a plurality of pipelines and control equipment, wherein the electrolytic bath is a key reaction structure. In the prior art, in order to reduce the heating condition of an electrolytic cell and improve the utilization rate of electric energy, a PEM electrolytic hydrogen production technology is mostly adopted. The core of the method is to use a special separator, namely a molecular-grade microporous ionic membrane. The thickness is very small, and hydrogen reverse osmosis is not easy to generate. The traditional alkaline diaphragm is not a molecular level micropore, so that the hydrogen reverse osmosis is easy to generate. Meanwhile, the current collector structure of the two-stage chamber in the PEM type electrolytic cell is compact and elastic, so that the electrolytic cell has light weight and small volume, the weight is only one third of that of a common electrolytic cell with the same hydrogen production, and the PEM type electrolytic cell has the advantages of zero polar distance and small cell internal resistance. However, the membrane is generally arranged in the electrolytic cell, and a plurality of prior arts adopt a disposable structure design, and the electrolytic cell is directly replaced after a certain time, so that the cost is high. Even if the ionic membrane is replaced, the sealing effect of the replaced ionic membrane cannot be determined only by gluing on the premise that the ionic membrane has no independent sealing structure in the electrolytic cell,

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a hydrogen production electrolytic tube structure, through special shell structure design, adopt split type structural design to have repeated detachability, the membrane electrode structure through independent setting simultaneously conveniently dismantles the change rather than the casing cooperation.

The utility model discloses the technical scheme who adopts does:

in a first aspect, the utility model provides a hydrogen production electrolytic tube structure, which is used as an independent sealed container for preparing hydrogen by electrolyzing water in the interior, and comprises a split type shell body which is mutually buckled, wherein the split type shell body is fixed in the interior by tightening a screw rod to form two cavities separated by a membrane electrode, and the split type shell body is provided with a circulating water pipe and an exhaust pipe which are respectively connected with the two cavities;

the split type shell comprises at least one insulated annular piece, an annular electrode clamping groove with the radius smaller than the outer diameter of the annular piece is arranged on the inner side of the annular piece, and a membrane electrode connected with an external circuit is fixed through the electrode clamping groove;

the split housing further includes an electrode cover covering the annular member.

In combination with the first aspect, the present invention provides a first embodiment of the first aspect, wherein the ring member includes a first ring member and a second ring member connected by a threaded connection member, and the electrode clamping groove is provided on any one of the first ring member and the second ring member, and clamps the membrane electrode when the first ring member and the second ring member are fastened by the threaded connection member;

electrode covers are covered on the outer portions of the first annular piece and the second annular piece, and the electrode covers at two ends are fastened and fixed through screws;

the electrode cover is buckled with the annular part on the same side to form an independent cavity.

In combination with the first embodiment of the first aspect, the present invention provides a second embodiment of the first aspect, wherein the electrode covers are provided with ear seats, and the screw rod is connected to the ear seats of the electrode covers at two sides in a tightening manner.

Combine the first embodiment of first aspect, the utility model provides a third kind embodiment of first aspect, the electrode cover is equipped with the heavy platform of annular on the terminal surface of lock loop element, heavy platform embedding loop element in and form first sealed with the laminating of loop element inner wall.

Combine the third embodiment of the first aspect, the utility model provides a fourth embodiment of the first aspect, the loop forming element inboard is equipped with the bulge loop, be equipped with the ring channel that supplies the bulge loop embedding on the inboard ring terminal surface of heavy platform, it is sealed to form the second through bulge loop embedding ring channel.

In combination with various embodiments of the first aspect, the present invention provides a fifth embodiment of the first aspect, wherein the electrode caps are respectively provided with electrode terminals at both sides, the electrode terminals have connecting ends penetrating into the electrode caps, and the connecting ends are respectively connected with corresponding sides of the membrane electrode.

In combination with various embodiments of the first aspect, the present invention provides a sixth embodiment of the first aspect, wherein an electrode terminal is provided on any one of the electrode caps, and the electrode terminal has a connecting end penetrating into the electrode cap;

a connecting port is arranged on one side corresponding to the membrane electrode, and contacts which are insulated and spaced and are connected with the electrode surfaces on the two sides of the membrane electrode are arranged on the connecting port;

the connecting end is of a sleeve structure, two conductors with insulation intervals are arranged at the end part of the connecting end in an exposed mode, and when the connecting end is inserted into the connecting port, the conductors are respectively connected with corresponding contacts to conduct electricity.

In combination with the sixth embodiment of the first aspect, the present invention provides the seventh embodiment of the first aspect, wherein the connecting end is connected to the connecting port by a screw thread seal.

The utility model has the advantages that:

the utility model has the advantages that the whole device is convenient to disassemble through the shell structure with split design, the shell structure can be used as an electrolytic cell in the hydrogen production process, meanwhile, different membrane electrode materials can be conveniently replaced for experiments by arranging the shell as a transparent insulating material, and the sealing performance of the membrane electrode can be ensured after the shell structure is disassembled for use for many times;

the membrane electrode is installed and fixed through the plurality of annular pieces, so that the membrane electrode is convenient to disassemble, meanwhile, the membrane electrode can be clamped in the membrane electrode, the outer circle edge of the membrane electrode is clamped, and meanwhile, the sealing performance of the membrane electrode can be improved by adding a sealing adhesive and the like;

the utility model discloses still increase detachable construction's sealing performance through a plurality of seal structure that are equipped with on the electrode cover, be equipped with the rubber circle or sealed glue respectively in every seal structure department and seal.

Drawings

FIG. 1 is a front view of an assembled whole electrolytic tube in an embodiment of the present invention;

FIG. 2 is a side view of the whole electrolytic tube after assembly in the embodiment of the present invention;

FIG. 3 is a first isometric view of an embodiment of the invention after assembly of the entire electrolytic cell;

FIG. 4 is a second axial side view of the entire electrolytic cell after assembly in an embodiment of the present invention;

FIG. 5 is a first isometric view of an embodiment of the invention with the entire electrolytic tube exploded;

FIG. 6 is a side view of the whole electrolytic tube in an exploded state in an embodiment of the present invention;

FIG. 7 is a second isometric view of an embodiment of the present invention with the electrolysis tube exploded;

FIG. 8 is a first isometric view of an embodiment of the invention with the electrolysis tube in a disassembled state and with the first annular member and the second annular member engaged;

FIG. 9 is a second isometric view of the embodiment of the present invention in a disassembled state with the first annular member and the second annular member engaged;

FIG. 10 is a side view of the first annular member and the second annular member in a disengaged state of the electrolytic tube according to the embodiment of the present invention;

fig. 11 isbase:Sub>A sectional view of fig. 10 taken along the sectional linebase:Sub>A-base:Sub>A.

In the figure: 1-electrode cover, 1.1-lug seat, 1.2-sinking platform, 1.3-guide plate, 2-exhaust pipe, 3-circulating water pipe, 4-electrode terminal, 4.1-connecting end, 5-first ring element, 6-second ring element, 7-screw rod, 8-membrane electrode, 8.1-connecting port, 9-threaded connecting element, 10-electrode clamping groove, 11-convex ring and 12-annular groove.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between descriptions and not necessarily for describing or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

the embodiment discloses a hydrogen production electrolytic tube structure which is used as an independent sealed container for preparing hydrogen through electrolyzing water in the interior, and comprises split shells which are mutually buckled, wherein the split shells are tightened and fixed in the interior through screws 7 to form two chambers separated by a membrane electrode 8, and the split shells are provided with circulating water pipes 3 and exhaust pipes 2 which are respectively connected with the two chambers; the split type shell comprises at least one insulated annular piece, an annular electrode clamping groove 10 with the radius smaller than the outer diameter of the annular piece is arranged on the inner side of the annular piece, and a membrane electrode 8 connected with an external circuit is fixed through the electrode clamping groove 10; the split housing further comprises an electrode cover 1 covering the annular member.

The electrode clamping grooves 10 are arranged on any one of the first annular member 5 and the second annular member 6 and clamp the membrane electrode 8 when the electrode clamping grooves are buckled through the threaded connecting member 9; the outer parts of the first annular piece 5 and the second annular piece 6 are covered with electrode covers 1, and the electrode covers 1 at two ends are tightened and fixed through screws 7; the electrode cover 1 is buckled with the annular part on the same side to form an independent cavity.

Furthermore, the electrode cover 1 is provided with an ear seat 1.1, and the screw 7 is connected to the ear seats 1.1 of the electrode covers 1 at two sides and is tightened and fixed.

Furthermore, in order to improve the sealing performance between the gaps of the split type shell, a multi-stage sealing structure is arranged in the shell. The electrode cover 1 is provided with an annular sinking platform 1.2 on the end face of the buckled annular piece, and the sinking platform 1.2 is embedded into the annular piece and is attached to the inner wall of the annular piece to form a first seal.

Meanwhile, a convex ring 11 is arranged on the inner side of the annular piece, an annular groove 12 for embedding the convex ring 11 is formed in the annular end face of the inner side of the sinking platform 1.2, and the convex ring 11 is embedded into the annular groove 12 to form a second seal.

In one embodiment, the electrode caps 1 on both sides are respectively provided with an electrode terminal 4, and the electrode terminal 4 has a connecting end 4.1 penetrating into the electrode cap 1 and is respectively connected with one corresponding side of the membrane electrode 8 through the connecting end 4.1.

In another embodiment, an electrode terminal 4 is arranged on any side of the electrode cover 1, and the electrode terminal 4 is provided with a connecting end 4.1 penetrating into the electrode cover 1; a connecting port 8.1 is arranged at one side corresponding to the membrane electrode 8, and the connecting port 8.1 is provided with contacts which are insulated and spaced and connected with the electrode surfaces at two sides of the membrane electrode 8;

the connecting end 4.1 is of a sleeve structure, two conductors with insulation intervals arranged inside are exposed at the end part of the connecting end 4.1, when the connecting end 4.1 is inserted into the connecting port 8.1, the conductors are respectively connected with corresponding contacts for conducting electricity, and the connecting end 4.1 is connected with the connecting port 8.1 in a sealing manner through threads.

Further, as shown in fig. 1-11, an embodiment of the hydrogen production electrolyzer structure is shown.

Wherein, the whole electrolytic tube is cylindrical and comprises electrode covers 1 which are symmetrically arranged and a ring-shaped piece arranged in the middle. The outside diameter of the annular member is the same as the outside diameter of the electrode cover 1, and the annular member has better integrity when buckled.

The whole electrolytic tube is horizontally arranged, is supported by an external support or a pipe fitting as a mode of placing in the figure, and is used as experimental equipment. The electrode cover 1, the first annular member 5 and the second annular member 6 are made of transparent acrylic plates, have good insulating property, and can see the positions of bubbles generated in the reaction process of the internal structure from the outside.

Furthermore, each electrode cover 1 is provided with an exhaust pipe 2 and a circulating water pipe 3 respectively from top to bottom according to the horizontal placement mode in the figure. Wherein, the exhaust pipe 2 is arranged above and matched with a guide plate 1.3 arranged at the top in the electrode cover 1, the gas and part of liquid generated from each chamber are led into the exhaust pipe 2 together for discharge, and then the gas and part of liquid are separated by external gas-liquid separation equipment to obtain corresponding gas.

Further, the electrode terminal 4 is fixed in the middle of the electrode cover 1, and has two cables connected to the external cables, which are connected to the two conductors inside. For convenience of arrangement, the present embodiment adopts the manner of the single electrode terminal 4 provided in the above-described embodiment, that is, the contact for connecting both sides of the membrane electrode 8 is provided on the left side of the membrane electrode 8. Because the two end faces of the membrane electrode 8 are respectively provided with the conducting layers as electrodes, and the middle part of the membrane electrode is provided with the connecting structure, the conducting layer on the other side can form a contact through a conducting material, so that the electrode terminal 4 on the other side can be directly connected and conducted conveniently.

Furthermore, an inner sealing structure and an outer sealing structure are arranged between the electrode covers 1 on the two sides and the corresponding annular parts, the sealing structures can be provided with sealing glue or rubber rings on the contacted annular end faces, when the sealing structures are disassembled, the three external screw rods 7 are only required to be disassembled to be separated, and whether the sealing glue or the rubber rings are arranged or not is confirmed when the sealing structures are assembled.

Furthermore, the first annular part 5 is connected with the second annular part 6 through a threaded connection part 9, namely a circle of external threads are arranged on the first annular part 5, internal threads are arranged on the inner side of the second annular part 6, and a rubber ring or sealant is also arranged at a joint for sealing.

Meanwhile, the inner side of the first annular part 5 is provided with an annular end face, an electrode clamping groove 10 arranged on the annular end face is used for enabling the membrane electrode 8 to be embedded into the electrode clamping groove 10, and the second annular part 6 on the other side is buckled, pressed and sealed.

The present invention is not limited to the above-mentioned alternative embodiments, and other various products can be obtained by anyone in light of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined by the appended claims, which are to be interpreted as illustrative of the scope of the invention.

Claims

1. The utility model provides a adopt hydrogen electrolysis tube structure, is as independent sealed container preparation hydrogen through electrolysis water in inside, its characterized in that: the membrane electrode assembly comprises split type shells which are buckled with each other, wherein the split type shells are tightened and fixed inside through a screw (7) to form two chambers which are separated by a membrane electrode (8), and a circulating water pipe (3) and an exhaust pipe (2) which are respectively connected with the two chambers are arranged on the split type shells;

the split type shell comprises at least one insulated annular piece, an annular electrode clamping groove (10) with the radius smaller than the outer diameter of the annular piece is formed in the inner side of the annular piece, and a membrane electrode (8) connected with an external circuit is fixed through the electrode clamping groove (10);

the split housing further comprises an electrode cover (1) covering the annular member.

2. A hydrogen production electrolytic tube structure according to claim 1, characterized in that: the electrode clamping groove (10) is arranged on any one of the first annular piece (5) and the second annular piece (6) and clamps the membrane electrode (8) when the electrode clamping groove is buckled through the threaded connecting piece (9);

the electrode covers (1) are covered outside the first annular part (5) and the second annular part (6), and the electrode covers (1) at two ends are tightened and fixed through a screw (7);

an electrode cover (1) and the annular piece on the same side are buckled to form an independent cavity.

3. A hydrogen production electrolytic tube structure according to claim 2, characterized in that: the electrode cover is characterized in that the electrode cover (1) is provided with an ear seat (1.1), and the screw (7) is connected to the ear seats (1.1) of the electrode covers (1) at two sides and is tightened and fixed.

4. A hydrogen production electrolytic tube structure according to claim 2, characterized in that: the electrode cover (1) is provided with an annular sinking platform (1.2) on the end face of the buckled annular piece, and the sinking platform (1.2) is embedded into the annular piece and is attached to the inner wall of the annular piece to form a first seal.

5. A hydrogen production electrolytic tube structure according to claim 4, characterized in that: the inner side of the annular piece is provided with a convex ring (11), the annular end surface of the inner side of the sinking platform (1.2) is provided with an annular groove (12) for the convex ring (11) to be embedded into, and the convex ring (11) is embedded into the annular groove (12) to form a second seal.

6. A hydrogen production electrolysis tube structure according to any one of claims 2 to 5 wherein: electrode terminals (4) are respectively arranged on the electrode covers (1) on the two sides, the electrode terminals (4) are provided with connecting ends (4.1) penetrating into the electrode covers (1), and the corresponding sides of the membrane electrodes (8) are respectively connected through the connecting ends (4.1).

7. A hydrogen production electrolytic tube structure according to any one of claims 2 to 5, characterized in that: an electrode terminal (4) is arranged on the electrode cover (1) on any side, and the electrode terminal (4) is provided with a connecting end (4.1) penetrating into the electrode cover (1);

a connecting port (8.1) is arranged at one side corresponding to the membrane electrode (8), and the connecting port (8.1) is provided with insulated and spaced contacts connected with the electrode surfaces at two sides of the membrane electrode (8);

the connecting end (4.1) is of a sleeve structure, two conductors with insulation intervals arranged inside are exposed at the end part of the connecting end, and when the connecting end (4.1) is inserted into the connecting port (8.1), the conductors are respectively connected with corresponding contacts for conducting electricity.

8. A hydrogen production electrolytic tube structure according to claim 7, characterized in that: the connecting end (4.1) is hermetically connected with the connecting port (8.1) through threads.