Graphene nonmetal cylindrical electrode and hydrogen production reactor formed by same

Abstract

The utility model relates to a graphene non-metal cylindrical electrode which is characterized by comprising a graphene cylinder body, a conductive steel wire mesh ring and a conductive plate, the graphene non-metal cylindrical electrode is die-cast into a modular structure, the conductive plate made of the metal material is directly connected to the graphene cylinder, the anode conductive plate made of the metal material is prevented from being in direct contact with electrolyte, graphene is used for conducting electricity, and when water electrolysis hydrogen production is conducted through the structure, due to the characteristics of graphene, heat is little, and energy consumption is little; flange connection is adopted, and the sealing performance is good; besides, the graphene nonmetal cylinders can be modularly stacked to form a modular hydrogen production reactor, and water electrolysis hydrogen production can be arranged in parallel or in series according to the required hydrogen production amount, so that the water electrolysis hydrogen production efficiency is greatly improved, and modular water electrolysis hydrogen production is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of graphene electrodes, in particular to a graphene non-metallic cylindrical electrode and a hydrogen production reactor formed therefrom. Background Art

[0002] In recent years, the world's energy landscape has undergone significant changes, with hydrogen being hailed as a "clean energy source." Consequently, research into large-scale hydrogen production by water electrolysis has become a priority in energy development plans, and extensive research has been conducted on water electrolysis equipment. Currently, there are three primary technical routes for hydrogen production by water electrolysis: alkaline water electrolysis (AWE), proton exchange membrane electrolysis (PEM), and solid oxide electrolysis (SOEC). Alkaline water electrolysis is the most mature, offers the lowest cost, and is currently the most economical.

[0003] Graphene is a new two-dimensional material composed of sp2 hybridized carbon atoms. It has unique physical and chemical properties and is considered to be a revolutionary material of the future. It is often used in water electrolysis treatment technology.

[0004] Currently, graphene water electrolysis devices basically use a metal electrode anode and a graphene film electrode cathode to electrolyze water to produce hydrogen. However, during the process of electrolyzing water to produce hydrogen, impurities in the electrolyzed water are easily adsorbed on the metal electrode and the graphene film electrode. Over time, the dirt will passivate the surfaces of the anode and cathode plates, reducing the resistance performance, thereby affecting the electrolysis effect. In addition, the existing conductive plate water electrolysis structure is complicated to install, cannot form a modular processing structure, and has poor versatility. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide a graphene non-metallic cylindrical electrode and a hydrogen production reactor formed thereof, which can solve the problems of general graphene hierarchical water electrolysis, which adopts a plate structure, is difficult to install, inconvenient to operate, and is difficult to form a cluster structure for modular water electrolysis.

[0006] In order to solve the above technical problems, the technical solution of the present utility model is: a graphene non-metallic cylindrical electrode, the innovation of which is that it includes a graphene cylinder, a conductive steel wire mesh ring and a conductive plate;

[0007] The graphene cylinder has a cylindrical structure, a ring-shaped spacer is provided at the bottom end of the graphene cylinder, and the graphene cylinder is die-cast above the spacer in the die-casting cavity;

[0008] The conductive steel wire mesh ring is a cylindrical structure, and is arranged in the graphene cylinder along the vertical direction, and is die-casted in the die-casting cavity when the graphene cylinder is die-cast;

[0009] The conductive plate includes a ring segment and an L-shaped wiring segment; the ring segment of the conductive plate is pressed onto the top of the graphene cylinder; the L-shaped wiring segment of the conductive plate is connected to the outer contour of the ring segment and extends to the outside of the graphene cylinder.

[0010] Furthermore, the annular segment of the conductive plate is arranged on the side surface at the top end of the graphene cylinder, and the annular segment of the conductive plate is embedded in the outer contour of the graphene cylinder; the outer diameter of the graphene cylinder is the same as the outer diameter of the annular segment of the conductive plate.

[0011] Furthermore, the conductive plate is made of metal titanium, and the annular section and the L-shaped wiring section of the conductive plate are integrally formed.

[0012] A hydrogen production reactor based on a graphene non-metallic cylindrical electrode, the innovation of which is that it includes a graphene non-metallic cylindrical electrode, a non-metallic connecting column, an anode conductive strip and a cathode conductive rod;

[0013] The graphene non-metallic electrodes have several components; the non-metallic connecting column has a cylindrical structure and connecting flanges are respectively provided at both ends of the non-metallic connecting column; the graphene non-metallic electrodes are respectively installed in the non-metallic connecting column, and the conductive plates on the graphene non-metallic electrodes extend from the sides of the non-metallic connecting column; the non-metallic connecting columns are stacked and conductive along the vertical direction, and two adjacent non-metallic connecting columns are connected by flanges, and a sealing ring is also provided between two adjacent non-metallic connecting columns; a non-metallic upper cover is provided on the top of the non-metallic connecting column at the top, and a non-metallic lower cover is provided on the bottom of the non-metallic connecting column at the bottom; the non-metallic upper cover is cylindrical and has several through holes at the top for accommodating the cathode conductive rod to pass through, and an oxygen outlet is provided on the side of the non-metallic upper cover, and a hydrogen outlet is provided at the end of the non-metallic upper cover; an electrolyte inlet is provided on the non-metallic lower cover;

[0014] The anode conductive strip is connected to the L-shaped connection section of the conductive plate of each graphite non-metallic electrode along the vertical direction, and one end of the anode conductive strip is connected to the anode of the power supply;

[0015] The cathode conductive rod has several through holes that pass through the non-metallic upper cover and are suspended in the stacked non-metallic connecting columns, and the top ends of the cathode conductive rods are sequentially connected in series to the cathode of the power supply. The cathode conductive rods are all embedded in a cylindrical proton exchange membrane, and the top end of the proton exchange membrane is connected to the non-metallic upper cover and is conductive to the hydrogen outlet; the bottom end of the proton exchange membrane is connected to the non-metallic lower cover and is conductive to the electrolyte inlet; hydrogen and oxygen are isolated by the proton exchange membrane.

[0016] Furthermore, the non-metallic connecting columns are arranged in parallel through brackets to form a modular structure, and the number of hydrogen production reactors is selectively used according to the amount of hydrogen production required.

[0017] The advantages of the present invention are:

[0018] 1) In the present invention, the graphene non-metallic cylindrical electrode is die-cast into a modular structure, and the conductive plate of the metal material is directly connected to the graphene cylinder to avoid direct contact between the metal anode conductive plate and the electrolyte. Graphene is used for conductivity. When this structure is used for electrolysis of water to produce hydrogen, due to the characteristics of graphene itself, it generates less heat and consumes less energy; the flange connection is used, and the sealing is good; in addition, the graphene non-metallic cylinders can be modularly stacked to form a modular hydrogen production reactor, which can be set up in parallel or in series according to the required hydrogen production capacity, thereby greatly improving the efficiency of electrolysis of water to produce hydrogen and realizing modular electrolysis of water to produce hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 This is a structural diagram of a graphene non-metallic cylindrical electrode of the present utility model.

[0021] Figure 2 This is a structural diagram of a hydrogen production reactor formed by a graphene non-metallic cylindrical electrode of the present invention. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0024] like Figure 1 The graphene non-metallic cylindrical electrode shown includes a graphene cylinder 1, a conductive steel wire mesh ring 2 and a conductive plate 3.

[0025] The graphene cylinder 1 is a cylindrical structure. A ring-shaped spacer 11 is provided at the bottom end of the graphene cylinder 1. The graphene cylinder 1 is die-cast above the spacer 11 in the die-casting cavity.

[0026] The conductive steel wire mesh ring 2 is a cylindrical structure, and is vertically arranged in the graphene cylinder 1 , and is die-cast together in the die-casting cavity when the graphene cylinder 1 is die-cast.

[0027] The conductive plate 3 includes a ring segment 31 and an L-shaped wiring segment 32; the ring segment 31 of the conductive plate 3 is pressed onto the top of the graphene cylinder 1; the L-shaped wiring segment 32 of the conductive plate 3 is connected to the outer contour of the ring segment 31 and extends to the outside of the graphene cylinder 1.

[0028] The annular segment of the conductive plate 3 is arranged on the side surface at the top end of the graphene cylinder 1 and is embedded in the outer contour of the graphene cylinder 1 ; the outer diameter of the graphene cylinder 1 is the same as the outer diameter of the annular segment of the conductive plate 3 .

[0029] The conductive plate 3 is made of titanium, and the annular section 31 and the L-shaped connecting section 32 of the conductive plate 3 are integrally formed.

[0030] A hydrogen production reactor based on a graphene non-metallic cylindrical electrode comprises a graphene non-metallic cylindrical electrode 4, a non-metallic connecting column 5, an anode conductive strip 6 and a cathode conductive rod 7.

[0031] There are several graphene non-metallic electrodes 4; the non-metallic connecting column 5 is a cylindrical structure and a connecting flange is provided at both ends of the non-metallic connecting column 5; the graphene non-metallic electrodes 4 are respectively installed in the non-metallic connecting column 5, and the conductive plate 3 on the graphene non-metallic electrode 4 extends from the side of the non-metallic connecting column 5; the non-metallic connecting column 5 is stacked and conductive along the vertical direction, and the two adjacent non-metallic connecting columns 5 are connected by a flange, and a sealing ring is also provided between the two adjacent non-metallic connecting columns 5; a non-metallic upper cover 8 is provided on the top of the non-metallic connecting column 5 at the top, and a non-metallic lower cover 9 is provided on the bottom of the non-metallic connecting column 5 at the bottom; the non-metallic upper cover 8 is cylindrical and has several through holes at the top for accommodating the cathode conductive rod to pass through, and an oxygen outlet is provided on the side of the non-metallic upper cover 8, and a hydrogen outlet is provided at the end of the non-metallic upper cover 8; an electrolyte inlet is provided on the non-metallic lower cover 9;

[0032] The anode conductive strip 6 is connected to the L-shaped connection segment 32 of the conductive plate of each graphite non-metallic electrode along the vertical direction, and one end of the anode conductive strip 6 is connected to the anode of the power supply.

[0033] The cathode conductive rod 7 has several through holes that pass through the non-metallic upper cover 8 and is suspended in the stacked non-metallic connecting columns, and the top ends of the cathode conductive rods are connected in series to the cathode of the power supply in turn. The cathode conductive rods 7 are all embedded in a cylindrical proton exchange membrane 71, and the top end of the proton exchange membrane 71 is connected to the non-metallic upper cover and is conductive to the hydrogen outlet; the bottom end of the proton exchange membrane is connected to the non-metallic lower cover and is conductive to the electrolyte inlet; hydrogen and oxygen are isolated by the proton exchange membrane 71.

[0034] The non-metallic connecting columns are arranged in parallel through brackets to form a modular structure, and the number of hydrogen production reactors is selectively used according to the amount of hydrogen production required.

[0035] The working principle of the present invention is as follows: a graphene non-metallic cylindrical electrode is die-cast into a modular structure, a conductive plate of a metal material is directly connected to a graphene cylinder, so as to avoid direct contact between the anode conductive plate of the metal material and the electrolyte, and graphene is used for conduction. When performing water electrolysis to produce hydrogen, this structure generates less heat and consumes less energy due to the characteristics of graphene itself; a flange connection is used, and the sealing is good; in addition, the graphene non-metallic cylinders can be modularly stacked to form a modular hydrogen production reactor, which can be arranged in parallel or in series according to the required hydrogen production amount, thereby greatly improving the efficiency of water electrolysis to produce hydrogen and realizing modular water electrolysis to produce hydrogen.

[0036] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A graphene non-metallic cylindrical electrode, characterized in that: It includes a graphene cylinder, a conductive steel wire mesh ring and a conductive plate; The graphene cylinder has a cylindrical structure, a ring-shaped spacer is provided at the bottom end of the graphene cylinder, and the graphene cylinder is die-cast above the spacer in the die-casting cavity; The conductive steel wire mesh ring is a cylindrical structure, and is arranged in the graphene cylinder along the vertical direction, and is die-casted in the die-casting cavity when the graphene cylinder is die-cast; The conductive plate includes a ring segment and an L-shaped wiring segment; the ring segment of the conductive plate is pressed onto the top of the graphene cylinder; the L-shaped wiring segment of the conductive plate is connected to the outer contour of the ring segment and extends to the outside of the graphene cylinder.

2. The graphene non-metal cylindrical electrode according to claim 1, characterized in that: The annular segment of the conductive plate is arranged on the side surface at the top end of the graphene cylinder, and the annular segment of the conductive plate is embedded in the outer contour of the graphene cylinder; the outer diameter of the graphene cylinder is the same as the outer diameter of the annular segment of the conductive plate.

3. The graphene non-metal cylindrical electrode according to claim 1, characterized in that: The conductive plate is made of titanium, and the annular section and the L-shaped wiring section of the conductive plate are integrally formed.

4. A hydrogen production reactor based on graphene non-metallic cylindrical electrodes, characterized by: It includes a graphene non-metal cylindrical electrode, a non-metal connecting column, an anode conductive strip and a cathode conductive rod; The graphene non-metallic electrodes have several components; the non-metallic connecting column has a cylindrical structure and connecting flanges are respectively provided at both ends of the non-metallic connecting column; the graphene non-metallic electrodes are respectively installed in the non-metallic connecting column, and the conductive plates on the graphene non-metallic electrodes extend from the sides of the non-metallic connecting column; the non-metallic connecting columns are stacked and conductive along the vertical direction, and two adjacent non-metallic connecting columns are connected by flanges, and a sealing ring is also provided between two adjacent non-metallic connecting columns; a non-metallic upper cover is provided on the top of the non-metallic connecting column at the top, and a non-metallic lower cover is provided on the bottom of the non-metallic connecting column at the bottom; the non-metallic upper cover is cylindrical and has several through holes at the top for accommodating the cathode conductive rod to pass through, and an oxygen outlet is provided on the side of the non-metallic upper cover, and a hydrogen outlet is provided at the end of the non-metallic upper cover; an electrolyte inlet is provided on the non-metallic lower cover; The anode conductive strip is connected to the L-shaped connection section of the conductive plate of each graphite non-metallic electrode along the vertical direction, and one end of the anode conductive strip is connected to the anode of the power supply; The cathode conductive rod has several through holes that pass through the non-metallic upper cover and are suspended in the stacked non-metallic connecting columns, and the top ends of the cathode conductive rods are sequentially connected in series to the cathode of the power supply. The cathode conductive rods are all embedded in a cylindrical proton exchange membrane, and the top end of the proton exchange membrane is connected to the non-metallic upper cover and is conductive to the hydrogen outlet; the bottom end of the proton exchange membrane is connected to the non-metallic lower cover and is conductive to the electrolyte inlet; hydrogen and oxygen are isolated by the proton exchange membrane.

5. A hydrogen production reactor based on graphene non-metallic cylindrical electrodes according to claim 4, characterized in that: The non-metallic connecting columns are arranged in parallel through brackets to form a modular structure, and the number of hydrogen production reactors is selectively used according to the amount of hydrogen production required.

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