PEM electrolytic bath with balanced pressure

Abstract

The utility model provides a pressure balanced PEM electrolytic bath, including: anode panel body, cathode panel body, stable support plate and fastener, anode panel body outside is provided with the anode panel body, compared with the prior art, the utility model has the following beneficial effect: by adding stable support plate, outer connecting column, inner connecting column and fastener, the pressure balanced PEM electrolytic bath can be used for the production of the anode panel body. When the anode panel body and the cathode panel body are connected, stable supporting plates are arranged on the four side faces of the cathode panel body, pressure can be stably and evenly supported, an inner connecting column of the cathode panel body is inserted into an outer connecting column of the anode panel body, a stud at the right end of the cathode panel body is screwed into an inner thread formed in the left side face of the inner connecting column through a fastener, and therefore the anode panel body and the cathode panel body are connected. The anode panel body and the cathode panel body are connected and fixed and provide certain support, so that the balance of the pressure of the electrolytic cell can be ensured, and the generated hydrogen and oxygen can be guided out and collected by additionally arranging the hydrogen guide hole and the oxygen guide hole.

Description

Technical Field

[0001] The utility model belongs to the technical field of PEM electrolyzers, and particularly relates to a pressure-balanced PEM electrolyzer. Background Art

[0002] The PEM electrolyzer is a device that uses an electrolytic membrane to decompose water into hydrogen and oxygen. It is an emerging electrolysis technology that has the advantages of small size, light weight, high temperature resistance, corrosion resistance, pressure resistance, and stable output, and is of great significance in the field of energy conservation and emission reduction. The safety of PEM electrolyzers is a major focus, but common PEM electrolyzers use thick plates as end plates in order to achieve higher end plate strength, which means that their overall quality is improved accordingly, so that the pressure on the support parts of the electrolyzer is increased when the electrolyzer is working, which may cause changes in the pressure inside the electrolyzer, and then there will be problems with regional pressure imbalance, affecting the normal electrolysis of the PEM electrolyzer and the effect of electrolytic hydrogen production during its electrolysis.

[0003] The electrolytic hydrogen production of the PEM electrolyzer will be affected, which will prevent it from playing its due role and lose its due advantages. Therefore, it is hoped that a new structure will be proposed to solve the above technical problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a pressure-balanced PEM electrolyzer to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized through the following technical scheme: a pressure-balanced PEM electrolyzer, comprising: an anode panel body, a cathode panel body, a stable support plate and a fastener, wherein an anode panel body is arranged outside the anode panel body, two groups of hydrogen guide holes are arranged on the left side of the anode panel body, support plate grooves are opened at the centers of the outer sides of the anode panel body, four corners of the outer side of the anode panel body are provided with external connecting columns, a proton exchange membrane is arranged on the right side of the anode panel body, a cathode panel body is arranged on the right side of the proton exchange membrane, a cathode panel body is arranged outside the cathode panel body, four corners of the outer side of the cathode panel body are provided with internal connecting columns, fasteners are arranged on the inner left end of the internal connecting column, four groups of stable support plates are arranged on the left side of the cathode panel body, and steam guide holes are arranged on the upper surfaces of the anode panel body and the cathode panel body.

[0006] As a preferred embodiment, an internal thread is provided at the left end of the inner side surface of the inner connecting column, and a stud is provided at the right end of the fastener. The stud is threadably connected to the internal thread, and a turning handle is provided at the left end of the fastener. By turning the turning handle, the stud can be screwed into the internal thread on the inner side of the left side surface of the inner connecting column to connect and fix the anode panel body and the cathode panel body.

[0007] As a preferred embodiment, the outer connecting posts and the inner connecting posts are each provided with four groups, and connecting holes are formed through the right side surfaces of the outer connecting posts, and the inner connecting posts and the connecting holes are interlocked with each other.

[0008] As a preferred embodiment, the support plate grooves and the stabilizing support plates are each provided with four groups, and the stabilizing support plates and the support plate grooves are interlocked with each other. When the anode panel body and the cathode panel body are connected, the stabilizing support plate on the left side of the cathode panel body is embedded in the support plate groove to provide stable support for the overall pressure, thereby ensuring the pressure balance of the electrolytic cell.

[0009] As a preferred embodiment, two groups of oxygen conducting holes are provided on the right side of the cathode panel body, and the hydrogen conducting holes and the oxygen conducting holes are interconnected with the external gas pipe. The oxygen generated by electrolysis in the electrolyzer enters the external gas pipe through the oxygen conduit, and the hydrogen is introduced into the external gas pipe through the hydrogen conducting holes, so that the oxygen and hydrogen can be separated and collected.

[0010] As a preferred embodiment, the steam holes are connected to an external heat pipe, and the heat pipe is connected to an external heat energy utilization device. The steam holes can collect the electrolysis heat energy and introduce it into the external heat energy utilization device, thereby reducing the heat energy waste of the electrolytic cell.

[0011] As a preferred embodiment, the lower ends of the anode panel body and the cathode panel body are provided with mounting plates, and mounting holes are formed through the left and right ends of the upper surface of the mounting plates.

[0012] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: by adding a stabilizing support plate, an external connecting column, an internal connecting column and fasteners, when the anode panel body and the cathode panel body are connected, stabilizing support plates are provided on all four sides of the cathode panel body, which can provide stable and uniform support for the pressure, insert the internal connecting column of the cathode panel body into the external connecting column of the anode panel body, and use fasteners to screw the stud at its right end into the internal thread opened on the left side of the internal connecting column, connect and fix the anode panel body and the cathode panel body, and provide a certain support, so as to ensure the balance of the pressure in the electrolytic cell, and by adding hydrogen guide holes and oxygen guide holes, the generated hydrogen and oxygen can be discharged and collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1This is a schematic diagram of the overall structure of the left side of a pressure-balanced PEM electrolyzer of the utility model.

[0015] Figure 2 This is a schematic diagram of the overall structure of the right side of a pressure-balanced PEM electrolyzer of the utility model.

[0016] Figure 3 The utility model is a schematic diagram of the overall structure of an anode panel body in a pressure-balanced PEM electrolyzer.

[0017] Figure 4 The utility model is a schematic diagram of the overall structure of a cathode panel body in a pressure-balanced PEM electrolyzer.

[0018] Figure 5 The utility model is a schematic diagram of the partial structure of a cathode panel body in a pressure-balanced PEM electrolyzer.

[0019] Figure 6 The utility model is a schematic diagram of the overall structure of a fastener in a pressure-balanced PEM electrolyzer.

[0020] In the figure, 100-anode panel body, 110-anode panel body, 120-hydrogen guide hole, 130-steam guide hole, 140-support plate groove, 150-external connection column, 160-connection hole, 170-mounting plate, 180-cathode panel body, 190-cathode panel body;

[0021] 200-oxygen guide hole, 210-internal connecting column, 220-internal thread, 230-stable support plate, 240-fastener, 250-handle, 260-stud. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 6 , the utility model provides a technical solution: a pressure-balanced PEM electrolyzer, comprising: an anode panel body 100, a cathode panel body 180, a stable support plate 230 and a fastener 240, an anode panel body 110 is provided outside the anode panel body 100;

[0024] Two groups of hydrogen guide holes 120 are provided on the left side of the anode panel body 110, support plate grooves 140 are provided at the center of the outer sides of the anode panel body 100, and external connection columns 150 are provided at the four corners of the outer sides of the anode panel body 110. A proton exchange membrane is provided on the right side of the anode panel body 100, and a cathode panel body 180 is provided on the right side of the proton exchange membrane.

[0025] A cathode panel body 190 is provided on the outside of the cathode panel body 180, and internal connecting columns 210 are provided at the four corners of the outer side of the cathode panel body 190. A fastener 240 is provided at the inner left end of the internal connecting column 210, and four groups of stable support plates 230 are provided on the left side of the cathode panel body 190. Steam ducts 130 are provided on the upper surfaces of the anode panel body 100 and the cathode panel body 180.

[0026] An internal thread 220 is provided at the left end of the inner side surface of the internal connecting column 210, and a stud 260 is provided at the right end of the fastener 240. The stud 260 is threadedly connected to the internal thread 220. A turning handle 250 is provided at the left end of the fastener 240. By turning the turning handle 250, the stud 260 can be screwed into the internal thread 220 on the inner side of the left side of the internal connecting column 210 to connect and fix the anode panel body 100 and the cathode panel body 180.

[0027] There are four groups of the outer connecting posts 150 and the inner connecting posts 210 . The right side of the outer connecting posts 150 is penetrated to form connecting holes 160 . The inner connecting posts 210 and the connecting holes 160 are interlocked with each other.

[0028] There are four groups of support plate grooves 140 and stable support plates 230. The stable support plates 230 and support plate grooves 140 are interlocked with each other. When the anode panel body 100 and the cathode panel body 180 are connected, the stable support plate 230 on the left side of the cathode panel body 180 is embedded in the support plate groove 140 to provide stable support for the overall pressure, thereby ensuring the pressure balance of the electrolytic cell.

[0029] Two groups of oxygen conducting holes 200 are provided on the right side of the cathode panel body 180. The hydrogen conducting holes 120 and the oxygen conducting holes 200 are interconnected with the external gas pipe. The oxygen generated by electrolysis in the electrolyzer enters the external gas pipe through the oxygen conduit 200, and the hydrogen is introduced into the external gas pipe through the hydrogen conducting holes 120, so that the oxygen and hydrogen can be separated and collected.

[0030] The steam conducting hole 130 is connected to an external heat conducting pipe, and the heat conducting pipe is connected to an external heat energy utilization device. The steam conducting hole 130 can collect the electrolysis heat energy and introduce it into the external heat energy utilization device, thereby reducing the heat energy waste of the electrolytic cell.

[0031] A mounting plate 170 is disposed at the lower end of the anode panel body 100 and the cathode panel body 180 , and mounting holes are formed through the left and right ends of the upper surface of the mounting plate 170 .

[0032] See also Figure 1-Figure 6 As the first embodiment of the utility model: in order to solve the problem of increased pressure caused by the use of thick plates in the common PEM electrolytic cell end plates, which leads to uneven pressure in the electrolytic cell, firstly, when the anode panel body 100 is connected to the cathode panel body 180, stable support plates 230 are provided on the four sides of the cathode panel body 180, which can provide stable and uniform support for the pressure, and secondly, the inner connecting column 210 of the cathode panel body 180 is inserted into the connecting hole 160 opened on the left side of the outer connecting column 150 of the anode panel body 100, and the fastener 240 is used to screw the stud 260 at the right end into the internal thread 220 opened on the left side of the inner connecting column 210, so as to connect and fix the anode panel body 100 and the cathode panel body 180, and provide a certain support, so as to ensure the balance of pressure in the electrolytic cell.

[0033] See also Figure 1-Figure 4 As the second embodiment of the utility model: Based on the above embodiment, the oxygen and hydrogen generated by electrolysis in the PME electrolyzer need to be collected separately. First, the hydrogen generated by electrolysis is introduced into the external air pipe through the hydrogen guide hole 120 on the left side of the anode panel body 100 to realize the extraction and collection of hydrogen. Secondly, the oxygen generated by electrolysis is introduced into the external air pipe through the oxygen guide hole 200 on the right side of the cathode panel body 180 to realize the extraction and collection of oxygen.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure-equalized PEM electrolyzer comprising: An anode panel body (100), a cathode panel body (180), a stabilizing support plate (230) and a fastener (240), characterized in that an anode panel body (110) is provided outside the anode panel body (100); The left side of the anode panel body (110) is provided with two groups of hydrogen guide holes (120), the center of the outer side surfaces of the anode panel body (100) are all provided with support plate grooves (140), the four corners of the outer side surfaces of the anode panel body (110) are all provided with external connection columns (150), the right side of the anode panel body (100) is provided with a proton exchange membrane, and the right side of the proton exchange membrane is provided with a cathode panel body (180); A cathode panel body (190) is provided on the outside of the cathode panel body (180), and internal connecting columns (210) are provided at the four corners of the outer side of the cathode panel body (190). A fastener (240) is provided at the inner left end of the internal connecting column (210), and four groups of stable support plates (230) are provided on the left side of the cathode panel body (190). The upper surfaces of the anode panel body (100) and the cathode panel body (180) are both provided with steam guide holes (130).

2. A pressure-equalized PEM electrolyzer according to claim 1, characterized in that: An internal thread (220) is provided at the left end of the inner side surface of the internal connecting column (210), a stud (260) is provided at the right end of the fastener (240), the stud (260) is threadedly connected to the internal thread (220), and a rotating handle (250) is provided at the left end of the fastener (240).

3. A pressure-equalized PEM electrolyzer according to claim 2, characterized in that: The outer connecting column (150) and the inner connecting column (210) are each provided with four groups, and a connecting hole (160) is formed through the right side surface of the outer connecting column (150), and the inner connecting column (210) and the connecting hole (160) are interlocked.

4. A pressure-equalized PEM electrolyzer according to claim 3, characterized in that: The support plate grooves (140) and the stabilizing support plates (230) are each provided with four groups, and the stabilizing support plates (230) and the support plate grooves (140) are interlocked.

5. A pressure-equalized PEM electrolyzer according to claim 1, characterized in that: Two groups of oxygen guide holes (200) are provided on the right side of the cathode panel body (180), and the hydrogen guide holes (120) and the oxygen guide holes (200) are both interconnected with an external gas pipe.

6. A pressure-equalized PEM electrolyzer according to claim 1, characterized in that: The steam conducting hole (130) is connected to an external heat conducting pipe, and the heat conducting pipe is connected to an external heat energy utilization device.

7. A pressure-equalized PEM electrolyzer according to claim 1, characterized in that: The lower ends of the anode panel body (100) and the cathode panel body (180) are both provided with mounting plates (170), and mounting holes are formed through the left and right ends of the upper surface of the mounting plate (170).

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