Electrolytic hydrogen production electrolytic bath structure

Abstract

The utility model discloses an electrolytic hydrogen production electrolytic bath structure which comprises a series electrolytic bath structure, the series electrolytic bath structure comprises a plurality of electrolytic bath units which are sequentially spliced, and the adjacent electrolytic bath units are in butt joint through clamping structures; a positive electrode and a negative electrode are arranged in each electrolytic cell unit, and the negative electrode in the previous electrolytic cell unit is connected with the positive electrode in the next electrolytic cell unit; an insulating separator is arranged between every two adjacent electrolytic cell units, and the electrolytic cell unit located at the head end of the series electrolytic cell structure and the electrolytic cell unit located at the tail end of the series electrolytic cell structure are both provided with sealing pieces; according to the utility model, the electrolytic cell units are connected in series, so that the capacity of the electrolytic cell is ensured, and the problems of low voltage, high current and large line loss of the existing parallel electrolytic cell structure are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electrolytic hydrogen production, and particularly relates to an electrolytic cell structure for electrolytic hydrogen production. BACKGROUND

[0002] The electrolytic cell is one of important components in the electrolytic hydrogen production process, and is internally provided with positive and negative electrodes, and oxygen is generated at the positive electrode and hydrogen is generated at the negative electrode under electrolysis by introducing electrolyte into the electrolytic cell. In the existing electrolytic cell structure, in order to ensure the capacity of the electrolytic cell, the electrolytic cell is usually arranged as a plurality of electrolytic cell units, and adjacent units are usually connected in parallel, which causes the existing parallel electrolytic cell units to have the defects of low voltage, high current and large line loss, thereby affecting the final hydrogen production efficiency.

[0003] Therefore, based on the above problems existing in the existing electrolytic cell for electrolytic hydrogen production, the utility model discloses an electrolytic cell structure for electrolytic hydrogen production. UTILITY MODEL CONTENTS

[0004] The utility model discloses an electrolytic cell structure for electrolytic hydrogen production, which is connected through series electrolytic cell units, and effectively improves the problems of low voltage, high current and large line loss of the existing parallel electrolytic cell structure while ensuring the capacity of the electrolytic cell.

[0005] The utility model realizes the following technical scheme:

[0006] An electrolytic cell structure for electrolytic hydrogen production includes a series electrolytic cell structure, the series electrolytic cell structure includes a plurality of electrolytic cell units that are sequentially spliced, and adjacent electrolytic cell units are butted through a clamping structure;The inside of each electrolytic cell unit is provided with a positive electrode and a negative electrode, and the negative electrode in a previous electrolytic cell unit is connected with the positive electrode in a subsequent electrolytic cell unit;An insulating spacer is arranged between adjacent two electrolytic cell units, and the electrolytic cell unit at the head end of the series electrolytic cell structure and the electrolytic cell unit at the tail end of the series electrolytic cell structure are both provided with a closing piece.

[0007] Compared with the parallel structure of one positive and two negatives of the adjacent electrolytic units in the prior art, the serial electrolytic cell structure is formed by connecting the negative electrode of the previous electrolytic cell unit and the positive electrode of the next electrolytic cell unit in sequence, the positive electrode of the electrolytic cell unit at the head end of the serial electrolytic cell structure is connected with the positive electrode of the external power supply, and the negative electrode of the electrolytic cell unit at the tail end of the serial electrolytic cell structure is connected with the negative electrode of the external power supply, thereby forming the serial structure.

[0008] In order to better realize the utility model, further, the two ends of the electrolytic cell unit are respectively provided with a butt joint slot and a butt joint block, and the adjacent two electrolytic cell units are correspondingly clamped through the butt joint slot and the butt joint block.

[0009] In order to better realize the utility model, further, the one side of the butt joint slot is provided with a first tensioning piece, the one side of the butt joint block is provided with a second tensioning piece, and the first tensioning piece and the second tensioning piece are connected through a tensioning bolt.

[0010] In order to better realize the utility model, further, the insulation isolation piece comprises an internal insulation isolation piece and an external insulation isolation piece, the internal insulation isolation piece is arranged between the splicing ends of the adjacent electrolytic cell units, and the external insulation isolation piece is arranged outside the joint formed by the butt joint slot and the butt joint block.

[0011] In order to better realize the utility model, further, the insulation isolation piece further comprises a filling insulation isolation piece, and the filling insulation isolation piece is arranged inside the butt joint slot.

[0012] In order to better realize the utility model, further, the two ends of the electrolytic cell unit are respectively provided with a first insertion slot and a second insertion slot, a positive electrode is inserted at the first insertion slot, and a negative electrode is inserted at the second insertion slot.

[0013] In order to better realize the utility model, further, the top of the first insertion slot is provided with an oxygen conveying pipeline, and the top of the second insertion slot is provided with a hydrogen conveying pipeline.

[0014] In order to better realize the utility model, further, the bottom of the electrolytic cell unit is provided with an electrolyte injection port.

[0015] To better realize this utility model, the electrolytic cell unit is further provided with a positive terminal connected to the positive electrode, and the electrolytic cell unit is provided with a negative terminal connected to the negative electrode.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0017] This invention utilizes a snap-fit ​​structure formed by the splicing of docking slots and docking blocks to achieve the sequential splicing of adjacent electrolytic cell units. This allows for flexible combination of electrolytic cell units according to actual usage requirements, resulting in greater applicability. Furthermore, by connecting the negative electrode of the preceding electrolytic cell unit to the positive electrode of the following electrolytic cell unit, this invention forms a series electrolytic cell structure. Compared to existing parallel electrolytic cell units, this improves upon the problems of low voltage, high current, and high line loss inherent in existing parallel structures. Attached Figure Description

[0018] Figure 1 A cross-sectional schematic diagram of the structure of an electrolytic cell for hydrogen production.

[0019] Figure 2 This is a schematic diagram of the electrolytic cell unit.

[0020] Figure 3 This is a schematic diagram showing the splicing of two adjacent electrolytic cell units;

[0021] Figure 4 for Figure 3 Enlarged view of a portion at point A;

[0022] Figure 5 This is a schematic diagram of the insulating isolation component.

[0023] Wherein: 1-Electrolytic cell unit; 2-Positive electrode; 3-Negative electrode; 4-Insulating component; 5-Sealing component; 6-Oxygen delivery pipeline; 7-Hydrogen delivery pipeline; 41-Internal insulating component; 42-External insulating component; 43-Filled insulating component; 100-Matching slot; 200-Matching block; 300-Tightening bolt; 101-First tensioning component; 201-Second tensioning component; 111-First slot; 222-Second slot. Detailed Implementation

[0024] Example 1:

[0025] This embodiment presents a structure for an electrolytic hydrogen production electrolyzer, such as... Figures 1-3As shown, the electrolytic tank structure includes a series electrolytic tank structure including a plurality of electrolytic tank units 1 connected in series, and adjacent electrolytic tank units 1 are connected through a clamping structure. The inside of each electrolytic tank unit 1 is provided with a positive electrode 2 and a negative electrode 3, and the negative electrode 3 in the previous electrolytic tank unit 1 is connected with the positive electrode 2 in the next electrolytic tank unit 1. An insulating spacer 4 is arranged between adjacent two electrolytic tank units 1, and the electrolytic tank unit 1 at the head end of the series electrolytic tank structure and the electrolytic tank unit 1 at the tail end of the series electrolytic tank structure are both provided with a closing member 5.

[0026] According to actual use requirements, a plurality of electrolytic tank units 1 of the same specification or a plurality of electrolytic tank units 1 of different specifications can be connected in series to form a series electrolytic tank structure. An insulating spacer 4 is arranged between adjacent electrolytic tank units 1 to ensure the insulation between adjacent electrolytic tank units 1, thereby avoiding short circuit between adjacent electrolytic tank units 1. A detachable positive electrode 2 and a negative electrode 3 are arranged at the front and rear ends inside each electrolytic tank unit 1.

[0027] Taking two adjacent electrolytic tank units 1 as an example, the negative electrode 3 in the previous electrolytic tank unit 1 is connected with the positive electrode 2 in the next electrolytic tank unit 1, and the negative electrode 3 in the previous electrolytic tank unit 1 and the positive electrode 2 in the next electrolytic tank unit 1 are respectively located on the two sides of the insulating spacer 4. The series electrolytic tank structure is formed through the above connection structure, and the non-clamping end of the electrolytic tank unit 1 at the head end of the series electrolytic tank structure and the non-clamping end of the electrolytic tank unit 1 at the tail end of the series electrolytic tank structure are both provided with an insulating closing member 5 to close the electrolytic tank structure. At the same time, the positive electrode 2 in the electrolytic tank unit 1 at the head end of the series electrolytic tank structure is connected with the positive electrode of the external power supply, and the negative electrode of the electrolytic tank unit 1 at the tail end of the series electrolytic tank structure is connected with the negative electrode of the external power supply.

[0028] The series electrolytic tank structure replaces the parallel structure between the electrolytic units in the prior art, thereby improving the problems of low voltage, high current and large line loss existing in the prior art parallel structure, and the electrolytic tank units 1 connected in series not only ensure the capacity of the entire series electrolytic tank structure, but also can be flexibly spliced according to actual hydrogen production requirements, and have better applicability.

[0029] Embodiment 2:

[0030] This embodiment discloses an electrolytic hydrogen production electrolytic tank structure, which is optimized on the basis of embodiment 1, as shown in Figure 2 and Figure 3 As shown, the two ends of the electrolytic tank unit 1 are respectively provided with a butt clamping groove 100 and a butt clamping block 200, and adjacent two electrolytic tank units 1 are correspondingly clamped through the butt clamping groove 100 and the butt clamping block 200.

[0031] With the splicing structure between the two adjacent electrolytic cell units 1 as an example, the butt joint block 200 in the former electrolytic cell unit 1 is correspondingly spliced with the butt joint slot 100 in the latter electrolytic cell unit 1, thereby realizing the splicing between the two adjacent electrolytic cell units 1. After the splicing of the two adjacent electrolytic cell units 1 is completed, the insulating isolation piece 4 can be arranged between the two adjacent electrolytic cell units 1 for insulating isolation.

[0032] Further, as shown in Figure 2 and Figure 3 , one side of the butt joint slot 100 is provided with a first tensioning piece 101, one side of the butt joint block 200 is provided with a second tensioning piece 201, and the first tensioning piece 101 and the second tensioning piece 201 are connected through a tensioning bolt 300. The first tensioning piece 101 includes a first tensioning lug, the second tensioning piece 201 includes a second tensioning lug, and corresponding tensioning holes are provided on the first tensioning lug and the second tensioning lug. The tensioning bolt 300 is inserted into the tensioning holes and is locked through the nut on the tensioning bolt 300, thereby tightly splicing the two adjacent electrolytic cell units 1 together.

[0033] The remaining part of the embodiment is the same as that of embodiment 1, and thus will not be described again.

[0034] Embodiment 3:

[0035] The embodiment discloses an electrolytic cell structure for electrolytic hydrogen production, which is optimized on the basis of embodiment 1 or 2. As shown in Figure 4 and Figure 5 , the insulating isolation piece 4 includes an internal insulating isolation piece 41 and an external insulating isolation piece 42. The internal insulating isolation piece 41 is arranged between the splicing ends of the adjacent electrolytic cell units 1, and the external insulating isolation piece 42 is arranged outside the joint formed by the butt joint slot 100 and the butt joint block 200.

[0036] Specifically:

[0037] When the two adjacent electrolytic cell units 1 are spliced, the internal insulating isolation piece 41 is installed between the splicing surfaces. After the two adjacent electrolytic cell units 1 are tightly spliced through the tensioning bolt 300, the internal insulating isolation piece 41 is tightly fixed between the two adjacent electrolytic cell units 1 to form internal insulating isolation. At the same time, the external insulating isolation piece 42 is arranged outside the joint formed by the butt joint slot 100 and the butt joint block 200, thereby sealing the joint and forming external insulating isolation.

[0038] Further, the insulating spacer 4 further comprises a filling insulating spacer 43, which is arranged inside the docking card slot 100. When the docking card block 200 is inserted into the inside of the docking card slot 100, i.e. extruding the filling insulating spacer 43, so that the filling insulating spacer 43 is wrapped outside the docking card block 200, forming the insulating isolation between the docking card slot 100 and the docking card block 200.

[0039] The remaining part of the embodiment is the same as that of Embodiment 1 or 2, and thus will not be described again.

[0040] Embodiment 4:

[0041] The embodiment discloses an electrolytic hydrogen production electrolytic cell structure, which is optimized on the basis of any one of Embodiments 1-3, as shown in the figure, the inside of the electrolytic cell unit 1 is respectively provided with a first slot 111 and a second slot 222, the positive electrode 2 is inserted at the first slot 111, and the negative electrode 3 is inserted at the second slot 222. Figure 1

[0042] The first slot 111 and the second slot 222 are respectively arranged at the front and rear ends of the inside bottom of the electrolytic cell unit 1, the bottom of the positive electrode 2 and the bottom of the negative electrode 3 are both provided with an insertion sheet, which is directly inserted into the first slot 111 or the second slot 222, so as to realize the quick installation of the positive electrode 2 and the negative electrode 3 inside the electrolytic cell unit 1.

[0043] Further, the top of the first slot 111 is provided with an oxygen delivery pipeline 6, and the top of the second slot 222 is provided with a hydrogen delivery pipeline 7. The oxygen generated at the positive electrode 2 overflows upwards into the oxygen delivery pipeline 6 after entering the electrolyte, and is delivered to the oxygen storage tank through the oxygen delivery pipeline 6. Similarly, the hydrogen generated at the negative electrode 3 overflows upwards into the hydrogen delivery pipeline 7 after entering the electrolyte, and is delivered to the hydrogen storage tank through the hydrogen delivery pipeline 7. By arranging the oxygen delivery pipeline 6 and the hydrogen delivery pipeline 7, the oxygen and the hydrogen are separated and delivered, avoiding mixing of the oxygen and the hydrogen.

[0044] Further, the bottom of the electrolytic cell unit 1 is provided with an electrolyte inlet, and the prepared electrolyte can be delivered into the inside of each electrolytic cell unit 1 through the electrolyte inlet.

[0045] The remaining part of the embodiment is the same as that of any one of Embodiments 1-3, and thus will not be described again.

[0046] Embodiment 5:

[0047] The embodiment discloses an electrolytic hydrogen production electrolytic cell structure, which is optimized on the basis of any one of Embodiments 1-4, as shown in the figure, the inside of the electrolytic cell unit 1 is respectively provided with a first slot 111 and a second slot 222, the positive electrode 2 is inserted at the first slot 111, and the negative electrode 3 is inserted at the second slot 222. Figure 1 ​As shown, the electrolytic cell unit 1 is externally provided with a positive electrode connection terminal connected with the positive electrode 2, and is externally provided with a negative electrode connection terminal connected with the negative electrode 3. The positive electrode connection terminal and the negative electrode connection terminal are used for quick connection with an external power source, and are used for quick connection between the positive electrode 2 and the negative electrode 3 of adjacent electrolytic cell units 1.

[0048] The rest of the embodiment is the same as any one of embodiments 1-4, and thus will not be described again.

[0049] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification or equivalent change according to the technical essence of the present application to the above embodiment falls within the protection scope of the present application.

Claims

1. A structure for an electrolytic hydrogen production cell, characterized in that, The structure includes a series electrolytic cell structure, which comprises several electrolytic cell units (1) that are sequentially spliced ​​together. Adjacent electrolytic cell units (1) are connected by a snap-fit ​​structure. Each electrolytic cell unit (1) is provided with a positive electrode (2) and a negative electrode (3), and the negative electrode (3) in the previous electrolytic cell unit (1) is connected to the positive electrode (2) in the next electrolytic cell unit (1). An insulating isolation component (4) is provided between two adjacent electrolytic cell units (1), and the electrolytic cell unit (1) at the beginning of the series electrolytic cell structure and the electrolytic cell unit (1) at the end of the series electrolytic cell structure are provided with a sealing component (5).

2. The structure of an electrolytic hydrogen production electrolyzer according to claim 1, characterized in that, The two ends of the electrolytic cell unit (1) are respectively provided with docking slots (100) and docking blocks (200), and two adjacent electrolytic cell units (1) are connected to the docking blocks (200) through the docking slots (100).

3. The electrolytic hydrogen production electrolyzer structure according to claim 2, characterized in that, A first tensioning member (101) is provided on one side of the docking slot (100), and a second tensioning member (201) is provided on one side of the docking block (200). The first tensioning member (101) and the second tensioning member (201) are connected by a tensioning bolt (300).

4. The structure of an electrolytic hydrogen production electrolyzer according to claim 3, characterized in that, The insulating isolation component (4) includes an internal insulating isolation component (41) and an external insulating isolation component (42). The internal insulating isolation component (41) is disposed between the splicing ends of adjacent electrolytic cell units (1), and the external insulating isolation component (42) is disposed outside the joint formed by the docking slot (100) and the docking block (200).

5. The structure of an electrolytic hydrogen production electrolyzer according to claim 4, characterized in that, The insulating isolation element (4) further includes a filling insulating isolation element (43), which is disposed inside the docking slot (100).

6. The structure of an electrolytic hydrogen production electrolyzer according to any one of claims 1-5, characterized in that, The electrolytic cell unit (1) has a first slot (111) and a second slot (222) at its two ends. A positive electrode (2) is inserted into the first slot (111) and a negative electrode (3) is inserted into the second slot (222).

7. The structure of an electrolytic hydrogen production electrolyzer according to claim 6, characterized in that, The top of the first slot (111) is provided with an oxygen delivery line (6), and the top of the second slot (222) is provided with a hydrogen delivery line (7).

8. The structure of an electrolytic hydrogen production electrolyzer according to claim 7, characterized in that, The bottom of the electrolytic cell unit (1) is provided with an electrolyte injection port.

9. The structure of an electrolytic hydrogen production electrolyzer according to any one of claims 1-5, characterized in that, The electrolytic cell unit (1) is provided with a positive terminal connected to the positive electrode (2) on its exterior, and a negative terminal connected to the negative electrode (3) on its exterior.

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