PEM electrolytic cell blind end collector plate with drainage function

Abstract

The utility model relates to the technical field of electrolytic bath processing, and discloses a PEM electrolytic bath blind end collector plate with a drainage function, which comprises a blind end collector plate body, one side of the blind end collector plate body is provided with a runner I, one side of the blind end collector plate body is provided with a mounting hole, the outer side of the blind end collector plate body is provided with a plug I, and the plug I is provided with a plug II. A second plug is arranged on the side, close to the first flow channel, of the blind end collector plate body, and a second flow channel is formed in the blind end collector plate body. According to the PEM electrolytic bath blind end collector plate with the drainage function, through the cooperation of the blind end collector plate and the first flow channel, when a water source enters the second flow channel, water can be discharged from a connector of the closed second flow channel, and water in an electrolytic bath cannot be directly discharged into the environment, so that the environmental protection requirement is met; and the blind end collector plate adopts the combination of the open flow channel and the closed flow channel, so that the drainage working condition requirement is met under the condition that the air tightness is not influenced, and the practicability is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic cell processing, and specifically relates to a blind end current collector plate of a PEM electrolytic cell with a drainage function. Background Art

[0002] Hydrogen energy produced by proton exchange membrane (PEM) electrolysis of water, as a recognized clean energy, is expected to achieve a carbon-neutral future. The blind end current collector plate is an important component in the electrolytic cell, and it mainly plays the role of collecting and conducting current. During the electrolysis process, the current needs to be evenly and stably distributed in the electrolytic cell, and the blind end current collector plate can ensure that the current can be effectively conducted in the blind end area, thereby improving the electrolysis efficiency and product quality.

[0003] In the existing technology, although during the electrolysis process, the current can be evenly and stably distributed in the electrolytic cell and can be effectively conducted, thereby improving the electrolysis efficiency and product quality, in actual use, generally the overall current collector plate design is relatively complex, resulting in a high production cost, and the blind end current collector plate only adopts an open channel, which is likely to affect the airtightness. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a blind end current collector plate of a PEM electrolytic cell with a drainage function, which can effectively solve the problems in the existing technology that generally the overall current collector plate design is relatively complex, resulting in a high production cost, and the blind end current collector plate only adopts an open channel, which is likely to affect the airtightness, etc.

[0005] The technical solution adopted by the utility model is: a blind end current collector plate of a PEM electrolytic cell with a drainage function, including a blind end current collector plate body, a flow channel one is opened on one side of the blind end current collector plate body, an installation hole is opened on one side of the blind end current collector plate body, a plug one is arranged outside the blind end current collector plate body, a plug two is arranged on the side of the blind end current collector plate body close to the flow channel one, and a flow channel two is opened inside the blind end current collector plate body.

[0006] Preferably, the flow channel one and the flow channel two are communicated, and the common flow channel area of the blind end current collector plate body adopts a sunken design.

[0007] Through the above technical solution, by adopting a sunken design for the common flow channel area of the blind end current collector plate body, water can flow into the flow channel one outside the blind end current collector plate body, and then, in cooperation with the communication between the flow channel one and the flow channel two, the water can flow inside the blind end current collector plate body.

[0008] Preferably, in the direction perpendicular to the flow channel one of the blind end current collector plate body, the flow channel two is designed in a "circular" shape, and the diameter of the flow channel two is 5 mm.

[0009] Through the above technical solution, through the cooperation of the blind-end current collector plate and the first flow channel, when water enters the second flow channel, the water can be discharged from the interface of the closed second flow channel, and the water in the electrolytic cell is not directly discharged into the environment, meeting the environmental protection requirements.

[0010] Preferably, the first plug is adapted to the second flow channel, and the second plug is adapted to the other end of the second flow channel.

[0011] Through the above technical solution, through the cooperation of the first plug and the second plug with the second flow channel, when the electrolytic cell is operating normally, the first plug and the second plug are installed to ensure the normal operation of the electrolytic cell with good airtightness. When the electrolytic cell needs to drain water, the first plug and the second plug are removed for drainage operation.

[0012] Preferably, there are two identical first flow channels and second flow channels, and the two first flow channels and second flow channels are symmetrically distributed about the center line of the blind-end current collector plate body.

[0013] Through the above technical solution, through the design of the two first flow channels and second flow channels, it helps the water source to flow evenly in the blind-end current collector plate body, and the unified and symmetric first flow channels and second flow channels are more convenient in the installation and maintenance process, and can reduce the possibility of installation errors.

[0014] Preferably, there are two identical groups of the first plugs and the second plugs, and there are two identical first plugs and second plugs in each group, and the two first plugs and second plugs are symmetrically distributed about the center line of the blind-end current collector plate body.

[0015] Through the above technical solution, through the design of the two first plugs and the second plugs, before use, the second flow channel can be sealed, and by using the gravity drainage and nitrogen purging methods, it can ensure that the water in the electrolytic cell can be drained completely.

[0016] Compared with the prior art, the present utility model provides a blind-end current collector plate of a PEM electrolytic cell with a drainage function, having the following beneficial effects:

[0017] 1. For the blind-end current collector plate of the PEM electrolytic cell with a drainage function, through the cooperation of the blind-end current collector plate and the first flow channel, when water enters the second flow channel, the water can be discharged from the interface of the closed second flow channel, and the water in the electrolytic cell is not directly discharged into the environment, meeting the environmental protection requirements. Moreover, the blind-end current collector plate adopts a combination of an open flow channel and a closed flow channel, meeting the drainage condition requirements without affecting the airtightness;

[0018] 2. For the blind-end current collector plate of the PEM electrolytic cell with a drainage function, through the cooperation of the first plug and the second plug with the second flow channel, when the electrolytic cell is operating normally, the first plug and the second plug are installed to ensure the normal operation of the electrolytic cell with good airtightness. When the electrolytic cell needs to drain water, the first plug and the second plug are removed for drainage operation. Brief Description of the Drawings

[0019] Figure 1 is a schematic three-dimensional structure of the present utility model Figure 1 ;

[0020] Figure 2 is a schematic three-dimensional structure of the present utility model Figure 2 ;

[0021] Figure 3 is a schematic three-dimensional structure of the present utility model Figure 3 ;

[0022] Figure 4 is a schematic cross-sectional structure of the present utility model Figure 1 ;

[0023] Figure 5 is a schematic cross-sectional structure of the present utility model Figure 2 .

[0024] Wherein: 1. Blind-end current collector plate body; 2. First flow channel; 3. Mounting hole; 4. First plug; 5. Second plug; 6. Second flow channel. Specific Embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1: As Figures 1-5 shown, a PEM electrolyzer blind-end current collector plate with a drainage function provided by the present utility model includes a blind-end current collector plate body 1. A first flow channel 2 is provided on one side of the blind-end current collector plate body 1. A mounting hole 3 is provided on one side of the blind-end current collector plate body 1. A first plug 4 is provided on the outside of the blind-end current collector plate body 1. A second plug 5 is provided on the side of the blind-end current collector plate body 1 close to the first flow channel 2. A second flow channel 6 is provided inside the blind-end current collector plate body 1.

[0027] Specifically, the first flow channel 2 communicates with the second flow channel 6. The common flow channel area of the blind-end current collector plate body 1 adopts a sunken design. The advantage is that through the sunken design of the common flow channel area of the blind-end current collector plate body 1, water can flow into the first flow channel 2 on the outside of the blind-end current collector plate body 1, and then, in cooperation with the communication between the first flow channel 2 and the second flow channel 6, water can flow inside the blind-end current collector plate body 1.

[0028] Specifically, in the direction perpendicular to the first flow channel 2, the second flow channel 6 of the blind-end current collector plate body 1 is designed as a "circle", and the diameter of the second flow channel 6 is 5 mm. The advantage is that through the cooperation of the blind-end current collector plate 1 and the first flow channel 2, when water enters the second flow channel 6, the water can be discharged from the interface of the closed second flow channel 6, and the water in the electrolytic cell is not directly discharged into the environment, meeting the environmental protection requirements.

[0029] Specifically, the first plug 4 is adapted to the second flow channel 6, and the second plug 5 is adapted to the other end of the second flow channel 6. The advantage is that through the cooperation of the first plug 4 and the second plug 5 with the second flow channel 6, when the electrolytic cell is operating normally, the first plug 4 and the second plug 5 are installed to ensure the normal operation of the electrolytic cell with good airtightness. When the electrolytic cell needs to drain water, the first plug 4 and the second plug 5 are removed for drainage operation.

[0030] Embodiment 2: As Figures 2-5 shown, as an improvement over the previous embodiment.

[0031] Specifically, there are two identical first flow channels 2 and second flow channels 6, and the two first flow channels 2 and second flow channels 6 are symmetrically distributed about the center line of the blind-end current collector plate body 1. The advantage is that through the design of the two first flow channels 2 and second flow channels 6, it helps the water source to flow evenly within the blind-end current collector plate body 1, and the unified and symmetric first flow channels 2 and second flow channels 6 are more convenient during installation and maintenance, and can reduce the possibility of installation errors.

[0032] Specifically, there are two identical sets of the first plugs 4 and the second plugs 5, and there are two identical first plugs 4 and second plugs 5 in each set. The two first plugs 4 and second plugs 5 are symmetrically distributed about the center line of the blind-end current collector plate body 1. The advantage is that through the design of the two first plugs 4 and second plugs 5, before use, the second flow channel 6 can be sealed, and by using gravity drainage and nitrogen purging methods, it can ensure that the water in the electrolytic cell can be drained completely.

[0033] Working principle: When in use, the common flow channel area of the blind-end current collecting plate body 1 adopts a sunken design, so that water can flow into the first flow channel 2 from the outside of the blind-end current collecting plate body 1. Subsequently, with the cooperation of the upper first flow channel 2 and the second flow channel 6, water can flow inside the blind-end current collecting plate body 1. Through the cooperation of the blind-end current collecting plate 1 and the first flow channel 2, when the water source enters the second flow channel 6, the water can be discharged from the interface of the closed second flow channel 6, and the water in the electrolytic cell is not directly discharged into the environment, meeting the environmental protection requirements. Through the cooperation of the first plug 4 and the second plug 5 with the second flow channel 6, when the electrolytic cell is operating normally, the first plug 4 and the second plug 5 are installed to ensure the normal operation of the electrolytic cell with good airtightness. When the electrolytic cell needs to drain water, the first plug 4 and the second plug 5 are removed for drainage operation. Through the design of the two first flow channels 2 and the second flow channel 6, it helps the water source to flow evenly inside the blind-end current collecting plate body 1, and the unified and symmetrical first flow channels 2 and second flow channels 6 are more convenient during installation and maintenance, and can reduce the possibility of installation errors. Through the design of the two first plugs 4 and the second plugs 5, before use, the second flow channel 6 can be sealed, and the gravity drainage and nitrogen purging methods are used to ensure that the water in the electrolytic cell can be drained completely.

[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blind-end current collector plate of a PEM electrolyzer with a drainage function, comprising a blind-end current collector plate body (1), characterized in that: One side of the blind-end manifold body (1) is provided with a first flow channel (2), one side of the blind-end manifold body (1) is provided with a mounting hole (3), a first plug (4) is arranged outside the blind-end manifold body (1), a second plug (5) is arranged on one side of the blind-end manifold body (1) close to the first flow channel (2), and a second flow channel (6) is formed inside the blind-end manifold body (1).

2. The blind-end current collector plate of a PEM electrolyzer with a drainage function according to claim 1, characterized in that: The first flow channel (2) is communicated with the second flow channel (6), and the common flow channel area of the blind-end manifold body (1) adopts a sunken design.

3. The blind-end current collector plate of a PEM electrolyzer with a drainage function according to claim 1, characterized in that: In the direction perpendicular to the first flow channel (2) of the blind-end manifold body (1), the second flow channel (6) is designed in a "circular" shape, and the diameter of the second flow channel (6) is 5 mm.

4. The blind-end current collector plate of a PEM electrolyzer with a drainage function according to claim 1, characterized in that: The first plug (4) is adapted to the second flow channel (6), and the second plug (5) is adapted to the other end of the second flow channel (6).

5. A blind-end current collector plate of a PEM electrolyzer with a drainage function according to claim 1, characterized in that: There are two identical first flow channels (2) and second flow channels (6), and the two first flow channels (2) and second flow channels (6) are symmetrically distributed about the center line of the blind-end manifold body (1).

6. The blind-end current collector plate of a PEM electrolyzer with a drainage function according to claim 1, characterized in that: There are two identical groups of the first plugs (4) and the second plugs (5), and there are two identical first plugs (4) and second plugs (5) in each group, and the two first plugs (4) and second plugs (5) are symmetrically distributed about the center line of the blind-end manifold body (1).

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