Detection tool for AEM water electrolysis hydrogen production membrane electrode assembly

Abstract

The utility model relates to a detection tool for an AEM water electrolysis hydrogen production membrane electrode assembly. The detection tool is characterized by comprising a supporting column, a cantilever arm, a membrane electrode assembly clamping arm and a limiting pull rod, the searchlight is arranged on the overhanging arm, and the driving section on the overhanging arm is used for driving the searchlight to swing in the vertical direction to adjust the distance from the searchlight to the membrane electrode assembly clamping frame, so that a better illumination effect and a better detection effect are guaranteed; in addition, the membrane electrode assembly clamping arm can rotate around the supporting column in the horizontal direction, and therefore it is guaranteed that AEM membrane electrode assemblies of multiple models can be detected at the same time; in addition, the membrane electrode assembly clamping frame and the connecting rod are connected in a hinged mode, the light incident angle of the searchlight can be controlled by adjusting the inclination angle of the membrane electrode assembly clamping frame, and multi-angle detection can be better conducted on the membrane electrode assembly.

Description

Technical Field

[0001] This utility model relates to the field of water electrolysis for hydrogen production technology, and in particular to a testing fixture for an AEM water electrolysis membrane electrode assembly for hydrogen production. Background Technology

[0002] Anion exchange membrane (AEM) water electrolysis for hydrogen production uses anion exchange membranes as the diaphragm in the electrolysis cell to electrolyze water into hydrogen and oxygen. It is one of the more advanced water electrolysis technologies currently available. AEM combines the advantages of traditional alkaline electrolysis (ALK) and pure water electrolysis (PEM), namely, the ability to use non-precious metal catalysts in alkaline environments, less stringent requirements on electrode plates and other components, and the capacity for intermittent operation.

[0003] Currently, the structure of commercial AEM membrane electrode assembly is mainly composed of a diffusion layer, a catalyst layer, and an anion exchange membrane. The diffusion layer is used for current collection and gas-liquid mass transfer, while the catalyst layer is the site of electrochemical reactions. The catalyst layer is prepared by directly physical spraying or chemically depositing the catalyst onto the diffusion layer to form the electrode. Finally, it is mechanically or hot-pressed together with the anion exchange membrane encapsulated with a sealing film.

[0004] After production, membrane electrode assemblies typically require sampling inspection. The main tests include checking for impurities within the membrane electrode assembly, the uniformity of catalyst loading on the electrodes, the presence of air bubbles in the sealing area of ​​the anion exchange membrane, and the presence of pores in the anion exchange membrane within the effective reaction zone. For different models of AEM membrane electrode assemblies, the illumination angles vary for better observation. Common illumination observation methods are cumbersome and inconvenient to operate. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a testing fixture for AEM electrolysis water production hydrogen membrane electrode assembly, which can solve the problems of inconvenient operation, low efficiency and troublesome testing of general AEM membrane electrode assembly, which requires manual lighting and testing at the same time.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a testing fixture for an AEM water electrolysis hydrogen production membrane electrode assembly, the innovation of which is: including a support column, a cantilever arm, a membrane electrode assembly clamping arm and a limiting tie rod;

[0007] The bottom end of the support column is provided with a pair of parallel clamping plates perpendicular to the direction of the support column, and a clamping slot is formed between the pair of clamping plates. The clamping plates have threaded holes, and clamping bolts are provided in the threaded holes. The support column is installed by the clamping bolts cooperating with the clamping slot. An inner hinge seat is provided on one side of the support column, and an outer hinge seat is provided on the other side of the support column. The outer hinge seat and the clamping plates are located on the same side.

[0008] The cantilever arm includes a light source cantilever section, an inclined arm, and a drive section; a searchlight is provided on the upper surface of the light source cantilever section, and the light source cantilever section is parallel to the drive section; the inclined arm connects the end of the light source cantilever section and the end of the drive section; a hinge hole is provided at the junction of the drive section and the inclined arm; the hinge hole is hinged to the inner hinge seat by a pin; the drive section has a right-angled trapezoidal structure, and the upper surface of the drive section is an inclined surface, on which several slots are provided along the extension direction;

[0009] The membrane electrode assembly clamping arm comprises several arms, each including a connecting rod and a membrane electrode assembly clamping frame. One end of the connecting rod is connected to a support column, and the other end is connected to the edge of the membrane electrode assembly clamping frame. The connecting rod is located above the inner hinge seat. The membrane electrode assembly clamping frame has a rectangular frame structure, and clamps for holding the membrane electrode assembly are provided at the edge of the frame. The membrane electrode assembly on the clamping frame is inspected using a microscope by illuminating it with a searchlight on the cantilever section of the light source.

[0010] The bottom end of the limiting rod is hinged to the outer hinge seat. A limiting pin is provided at the top of the limiting rod perpendicular to the axis of the limiting rod. The limiting pin cooperates with the slot on the upper surface of the drive section of the cantilever arm to adjust the distance from the searchlight on the cantilever section of the light source to the lower surface of the membrane electrode assembly clamping frame, so as to realize the detection of the membrane electrode assembly by different illumination angles and illumination distances.

[0011] Furthermore, a handle is provided at the tail end of the drive section.

[0012] Furthermore, a rotary table is nested at the connection between the support column and the connecting rod, and the rotary table can rotate around the axis of the support column; the end of the connecting rod is connected to the outer contour of the rotary table, and the membrane electrode assemblies clamped on the clamping frames of each membrane electrode assembly can be inspected with a microscope by rotating the rotary table.

[0013] Furthermore, the connection between the connecting rod and the membrane electrode assembly clamping frame is hinged, which allows the membrane electrode assembly to swing and adjust its tilt angle in a vertical plane.

[0014] The advantages of this utility model are:

[0015] 1) In this utility model, a searchlight is installed on the cantilever arm, and the drive section on the cantilever arm drives the searchlight to swing vertically to adjust the distance from the membrane electrode assembly clamping frame, so as to ensure better lighting and detection effects. In addition, the membrane electrode assembly clamping arm can rotate horizontally around the support column, which ensures that multiple models of AEM membrane electrode assemblies can be detected simultaneously. Furthermore, the membrane electrode assembly clamping frame and the connecting rod are connected by a hinge, and the incident angle of the searchlight can be controlled by adjusting the tilt angle of the membrane electrode assembly clamping frame, so as to better detect the membrane electrode assembly from multiple angles. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the testing fixture structure for an AEM electrolysis water-to-hydrogen membrane electrode assembly according to the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] 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 merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] like Figure 1 The AEM electrolysis water production hydrogen membrane electrode assembly testing fixture shown includes a support column 1, a cantilever arm 2, a membrane electrode assembly clamping arm 3, and a limiting rod 4.

[0021] A pair of parallel clamping plates are provided at the bottom end of the support column 1 perpendicular to the direction of the support column, and a clamping slot is formed between the pair of clamping plates. The clamping plates have threaded holes, and clamping bolts 11 are provided in the threaded holes. The support column is installed by the clamping bolts 11 cooperating with the clamping slot. An inner hinge seat 12 is provided on one side of the support column 1, and an outer hinge seat 13 is provided on the other side of the support column 1. The outer hinge seat 13 is located on the same side as the clamping plate.

[0022] The cantilever arm 2 includes a light source cantilever section 21, an inclined arm 22, and a drive section 23; a searchlight is provided on the upper surface of the light source cantilever section 21, and the light source cantilever section 21 is parallel to the drive section 23; the inclined arm 22 is connected between the end of the light source cantilever section 21 and the end of the drive section 23; a hinge hole is provided at the junction of the drive section 23 and the inclined arm 22; the hinge hole is hinged to the inner hinge seat by a pin; the drive section 23 has a right-angled trapezoidal structure, and the upper surface of the drive section 23 is an inclined surface, and several slots 24 are provided on the inclined surface along the extension direction.

[0023] The membrane electrode assembly clamping arm 3 has several arms, each including a connecting rod 31 and a membrane electrode assembly clamping frame 32. One end of the connecting rod 31 is connected to the support column 1, and the other end is connected to the edge of the membrane electrode assembly clamping frame 32. The connecting rod 31 is located above the inner hinge seat 12. The membrane electrode assembly clamping frame 32 has a rectangular frame structure, and the edge of the membrane electrode assembly clamping frame 32 is provided with clamps for holding the membrane electrode assembly. The membrane electrode assembly on the membrane electrode assembly clamping frame 32 is illuminated by a searchlight on the light source cantilever section 21 and inspected with a microscope.

[0024] The bottom end of the limiting rod 4 is hinged to the outer hinge seat. A limiting pin 41 is provided at the top end of the limiting rod 4 perpendicular to the axis of the limiting rod 4. The limiting pin 41 cooperates with the slot 24 on the upper surface of the drive section 23 of the cantilever arm 2 to adjust the distance from the searchlight on the light source cantilever section 21 of the cantilever arm 2 to the lower surface of the membrane electrode assembly clamping frame, so as to realize different illumination angles and illumination distances to detect the membrane electrode assembly.

[0025] A handle 25 is provided at the tail end of the drive section 23.

[0026] A rotary table is nested at the connection between the support column 1 and the connecting rod, and the rotary table can rotate around the axis of the support column; the end of the connecting rod 31 is connected to the outer contour of the rotary table, and the membrane electrode assembly held on each membrane electrode assembly clamping frame can be tested by rotating the rotary table.

[0027] The connection between the connecting rod 31 and the membrane electrode assembly clamping frame 32 is hinged, which allows the membrane electrode assembly to swing and adjust its tilt angle in the vertical plane.

[0028] The working principle of this invention is as follows: By installing a searchlight on the cantilever arm, the searchlight is driven by the drive section on the cantilever arm to swing vertically and adjust its distance from the membrane electrode assembly clamping frame, thereby ensuring better illumination and detection effects. In addition, the membrane electrode assembly clamping arm can rotate horizontally around the support column, thus ensuring that multiple models of AEM membrane electrode assemblies can be detected simultaneously. Furthermore, the membrane electrode assembly clamping frame and the connecting rod are connected by a hinge, and the incident angle of the searchlight light can be controlled by adjusting the tilt angle of the membrane electrode assembly clamping frame, allowing for better multi-angle detection of the membrane electrode assembly.

[0029] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A testing fixture for an AEM (Automatic Electrolysis Membrane Electrode) water electrolysis hydrogen production membrane electrode assembly, characterized in that: Includes support columns, cantilever arms, membrane electrode assembly clamping arms, and limiting rods; The bottom end of the support column is provided with a pair of parallel clamping plates perpendicular to the direction of the support column, and a clamping slot is formed between the pair of clamping plates. The clamping plates have threaded holes, and clamping bolts are provided in the threaded holes. The support column is installed by the clamping bolts cooperating with the clamping slot. An inner hinge seat is provided on one side of the support column, and an outer hinge seat is provided on the other side of the support column. The outer hinge seat and the clamping plates are located on the same side. The cantilever arm includes a light source cantilever section, an inclined arm, and a drive section; a searchlight is provided on the upper surface of the light source cantilever section, and the light source cantilever section is parallel to the drive section; the inclined arm connects the end of the light source cantilever section and the end of the drive section; a hinge hole is provided at the junction of the drive section and the inclined arm; the hinge hole is hinged to the inner hinge seat by a pin; the drive section has a right-angled trapezoidal structure, and the upper surface of the drive section is an inclined surface, on which several slots are provided along the extension direction; The membrane electrode assembly clamping arm comprises several arms, each including a connecting rod and a membrane electrode assembly clamping frame. One end of the connecting rod is connected to a support column, and the other end is connected to the edge of the membrane electrode assembly clamping frame. The connecting rod is located above the inner hinge seat. The membrane electrode assembly clamping frame has a rectangular frame structure, and clamps for holding the membrane electrode assembly are provided at the edge of the clamping frame. The membrane electrode assembly on the clamping frame is inspected using a microscope by illuminating it with a searchlight on the cantilever section of the light source. The bottom end of the limiting rod is hinged to the outer hinge seat. A limiting pin is provided at the top of the limiting rod perpendicular to the axis of the limiting rod. The limiting pin cooperates with the slot on the upper surface of the drive section of the cantilever arm to adjust the distance from the searchlight on the cantilever section of the light source to the lower surface of the membrane electrode assembly clamping frame, so as to realize different illumination angles and illumination distances for the membrane electrode assembly to be detected with a microscope.

2. The testing fixture for an AEM electrolysis water-to-hydrogen membrane electrode assembly according to claim 1, characterized in that: A handle is provided at the tail end of the drive section.

3. The testing fixture for an AEM electrolysis water-to-hydrogen membrane electrode assembly according to claim 1, characterized in that: A rotary table is nested at the connection between the support column and the connecting rod, and the rotary table can rotate around the axis of the support column; the end of the connecting rod is connected to the outer contour of the rotary table, and the membrane electrode assembly clamped on each membrane electrode assembly clamping frame can be detected by rotating the rotary table.

4. The testing fixture for an AEM electrolysis water-to-hydrogen membrane electrode assembly according to claim 1, characterized in that: The connection between the connecting rod and the membrane electrode assembly clamping frame is hinged, which allows the membrane electrode assembly to swing and adjust its tilt angle in a vertical plane.

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