A corrosion resistant coating structure for a cathode closed titanium alloy stack

Abstract

The utility model relates to the technical field of electric pile, disclose a kind of anticorrosive coating structure of cathode closed titanium alloy electric pile, including electric pile end plate main body, electric pile end plate main body front detachable quick-release anticorrosive coating frame is detachable, electric pile end plate main body one side is fixedly connected with side baffle, another group electric pile end plate main body is fixedly connected in the side baffle rear end, and the electric pile end plate main body is fixedly connected in the both sides of side baffle, when using the device, it can be conveniently realized the quick wrapping protection of electric pile by the quick-release anticorrosive coating frame of setting, the frame is made of titanium alloy material, interior is equipped with graphene composite coating and has excellent corrosion resistance, can effectively isolate the erosion of outside corrosive medium to electric pile, meanwhile, quick-release anticorrosive coating frame is detachably designed, and dismounting method is simple, convenient for later maintenance and replacement, significantly prolong the service life of electric pile, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of fuel cell technology, specifically to an anti-corrosion coating structure for a closed-type titanium alloy cathode fuel cell. Background Technology

[0002] An electric fuel cell stack is a device that directly converts chemical energy into electrical energy. It mainly consists of core components such as membrane electrode assemblies, bipolar plates, and seals. Its working principle is based on electrochemical reactions, generating current through the redox reaction of hydrogen and oxygen. It features high energy conversion efficiency, fast response speed, and environmental friendliness, and is widely used in transportation, distributed power generation, portable power supplies, and other fields. With the advancement of materials science and manufacturing processes, the power density, durability, and low-temperature start-up performance of electric fuel cell stacks are constantly improving, providing important support for the development of clean energy technologies.

[0003] However, it still has some drawbacks. For example, the anti-corrosion coating of the cathode closed titanium alloy stack is mostly a fixed structure, which is difficult to disassemble and maintain quickly. It cannot effectively isolate the long-term erosion of external corrosive media, resulting in a shortened service life of the stack. At the same time, the traditional coating structure requires the entire stack to be disassembled during maintenance, which is complicated and time-consuming, increasing maintenance costs.

[0004] To address the aforementioned issues, this application proposes an anti-corrosion coating structure for a closed-type titanium alloy cathode stack. Utility Model Content

[0005] The purpose of this invention is to provide an anti-corrosion coating structure for a closed-type titanium alloy cathode fuel cell stack, so as to solve the problem that the anti-corrosion coating of the closed-type titanium alloy cathode fuel cell stack is inconvenient to disassemble and maintain, as mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a corrosion-resistant coating structure for a closed-type titanium alloy cathode fuel cell stack, comprising a fuel cell stack end plate body, a quick-release corrosion-resistant coating frame detachably mounted on the front side of the fuel cell stack end plate body, a side baffle fixedly connected to one side of the fuel cell stack end plate body, and another set of fuel cell stack end plate bodies fixedly connected to the rear end of the side baffle. The fuel cell stack end plate bodies are fixedly connected to both sides of the side baffle, and the fuel cell stack end plate body has two sets. The quick-release corrosion-resistant coating frame facilitates rapid encapsulation and protection of the fuel cell stack through modular design. The frame is made of titanium alloy material and has an internal graphene composite coating with excellent corrosion resistance, effectively isolating the fuel cell stack from external corrosive media. At the same time, the quick-release corrosion-resistant coating frame adopts a detachable design, and the disassembly method is simple, facilitating later maintenance and replacement, significantly extending the service life of the fuel cell stack and reducing maintenance costs.

[0007] Preferably, the rear end of the fuel cell stack end plate body is detachably equipped with a quick-release anti-corrosion coating frame, and the quick-release anti-corrosion coating frame is provided in two sets. A single battery pack is installed on the inner side between the two sets of fuel cell stack end plate bodies, and the single battery pack is provided in multiple sets.

[0008] Preferably, side baffles are installed on both sides of the single battery pack, and two sets of side baffles are provided. Upper and lower protective frames are installed on the upper and lower sides of the single battery pack, and two sets of upper and lower protective frames are provided. Battery stack interface groups are fixedly connected to both sides of the front of the main body of the battery stack end plate, and the battery stack interface groups penetrate through both sides of the front of the quick-release anti-corrosion coating frame.

[0009] Preferably, the quick-release anti-corrosion coating frame has operating slots on all four sides, and there are four sets of operating slots. The operating slots are equipped with detachable hexagonal rotary cylinders, and a linkage fixing rod is fixedly connected to one side of the hexagonal rotary cylinder.

[0010] Preferably, a short threaded rod is fixedly connected to the other side of the linkage fixing rod, and a threaded groove is opened inside the perimeter of the other set of quick-release anti-corrosion coating frames. A short threaded rod can be detached inside the threaded groove. The linkage fixing rod passes through the rod movable groove, and the rod movable groove is opened inside both sides of the upper and lower protective frames.

[0011] Preferably, the linkage fixing rod penetrates the interior of both sets of fuel cell stack end plates. The quick-release anti-corrosion coating frame and the upper and lower protective frames are provided with a titanium alloy substrate layer. A ceramic composite transition layer is disposed inside the titanium alloy substrate layer, and a graphene composite coating is disposed inside the ceramic composite transition layer. During use, the quick-release anti-corrosion coating frame is quickly assembled and disassembled using an internal hexagonal cylinder within four operating slots. During installation, the quick-release anti-corrosion coating frame is first placed against the front of the fuel cell stack end plate. The linkage fixing rod is then inserted through the rod movable slot of the upper and lower protective frames and into the threaded groove of the rear quick-release anti-corrosion coating frame. Rotating the internal hexagonal cylinder drives the short threaded rod into the threaded groove to complete the fastening. For disassembly, rotating in the opposite direction separates the quick-release anti-corrosion coating frame. Its titanium alloy substrate layer and internal graphene composite coating form a double protection. The modular design eliminates the need to disassemble the entire fuel cell stack during maintenance; only the quick-release anti-corrosion coating frame and the upper and lower protective frames need to be replaced to restore anti-corrosion performance.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention features a quick-release anti-corrosion coating frame, which facilitates rapid encapsulation and protection of the fuel cell stack through modular design. The frame is made of titanium alloy and has an internal graphene composite coating with excellent corrosion resistance, effectively isolating the fuel cell stack from external corrosive media. At the same time, the quick-release anti-corrosion coating frame is detachable and easy to disassemble, facilitating later maintenance and replacement, significantly extending the service life of the fuel cell stack and reducing maintenance costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the anti-corrosion coating structure of a closed-type titanium alloy cathode stack according to this utility model.

[0015] Figure 2 This is a schematic diagram of a single-cell pack structure of an anti-corrosion coating structure for a closed-type titanium alloy cathode stack according to this utility model.

[0016] Figure 3 This is a schematic diagram of the quick-release anti-corrosion coating frame structure of an anti-corrosion coating structure for a closed-type titanium alloy cathode stack according to this utility model.

[0017] Figure 4 This is a schematic diagram of the quick-release anti-corrosion coating frame and the internal structure of the upper and lower protective frames of an anti-corrosion coating structure for a closed-type titanium alloy cathode stack according to this utility model.

[0018] In the diagram: 1. Fuel cell stack end plate body; 11. Fuel cell stack interface group; 2. Single cell pack; 3. Side baffle; 4. Quick-release anti-corrosion coating frame; 41. Operating slot; 5. Hexagonal internal rotating cylinder; 51. Linkage fixing rod; 52. Short threaded rod; 6. Upper and lower side protective frames; 61. Rod movable slot; 7. Titanium alloy substrate layer; 71. Ceramic composite transition layer; 72. Graphene composite coating; 8. Threaded groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In this embodiment, as shown... Figures 1-2As shown, the quick-release anti-corrosion coating frame 4 is detachably connected to the rear end of the fuel cell stack end plate body 1. The quick-release anti-corrosion coating frame 4 is configured in two sets. The single cell pack 2 is arranged in the inner area between the two sets of fuel cell stack end plate bodies 1. The single cell pack 2 is arranged in multiple sets in parallel. The side baffles 3 are respectively installed on the two sides of the single cell pack 2. The side baffles 3 are configured in two sets. The upper and lower protective frames 6 are installed at the top and bottom of the single cell pack 2. The upper and lower protective frames 6 are also configured in two sets. The fuel cell stack interface group 11 is fixedly connected to the left and right sides of the front of the fuel cell stack end plate body 1. The installation position of the fuel cell stack interface group 11 extends through the front two sides of the quick-release anti-corrosion coating frame 4.

[0021] In this embodiment, as shown... Figures 3-4 As shown, the operating slots 41 are formed on the inner walls of the quick-release anti-corrosion coating frame 4. Four sets of operating slots 41 are provided. The internal hexagonal cylinder 5 is detachably installed inside the operating slot 41. The linkage fixing rod 51 is fixedly connected to one end face of the internal hexagonal cylinder 5, and the short threaded rod 52 is fixedly connected to the other end face of the linkage fixing rod 51. Threaded grooves 8 are formed on the inner walls of another set of quick-release anti-corrosion coating frames 4. The short threaded rod 52 is installed inside the threaded grooves 8 with a threaded fit. Rod movable slots 61 are formed on the inner walls of the upper and lower protective frames 6. The linkage fixing rod 51 passes through the internal space of the rod movable slot 61. The installation path of the linkage fixing rod 51 runs through the internal structure of the two sets of fuel cell stack end plate bodies 1. A titanium alloy substrate layer 7 covers the surface of the quick-release anti-corrosion coating frame 4 and the upper and lower protective frames 6. A ceramic composite transition layer 71 is disposed on the titanium alloy substrate layer 7. The graphene composite coating 72 is set in the internal area of ​​the ceramic composite transition layer 71. When in use, the quick-release anti-corrosion coating frame 4 is quickly disassembled and assembled through the internal hexagonal cylinder 5 in the four sets of operating slots 41. During installation, the quick-release anti-corrosion coating frame 4 is first attached to the front of the fuel cell stack end plate body 1. The linkage fixing rod 51 is inserted through the rod movable slot 61 of the upper and lower protective frames 6 and into the threaded groove 8 of the rear quick-release anti-corrosion coating frame 4. The internal hexagonal cylinder 5 is rotated to drive the short threaded rod 52 into the threaded groove 8 to complete the fastening. During disassembly, the quick-release anti-corrosion coating frame 4 can be separated by rotating in the opposite direction. Its titanium alloy substrate layer 7 and the internal graphene composite coating 72 form a double protection. The modular design means that the entire fuel cell stack does not need to be disassembled during maintenance. Only the quick-release anti-corrosion coating frame 4 and the upper and lower protective frames 6 need to be replaced to restore the anti-corrosion performance.

[0022] Please see Figures 1-4A corrosion-resistant coating structure for a closed-type titanium alloy cathode fuel cell stack includes a fuel cell stack end plate body 1, a quick-release corrosion-resistant coating frame 4 detachably connected to the front of the fuel cell stack end plate body 1, a side baffle 3 fixedly connected to one side edge of the fuel cell stack end plate body 1, and another set of fuel cell stack end plate bodies 1 fixedly connected to the rear end of the side baffle 3. The installation positions of the fuel cell stack end plate bodies 1 are fixed to the two sides of the side baffle 3. The fuel cell stack end plate body 1 is provided with two sets of quick-release corrosion-resistant coating frames 4, which facilitates the rapid wrapping and protection of the fuel cell stack through modular design. The frame is made of titanium alloy material and has a graphene composite coating 72 inside, which has excellent corrosion resistance and can effectively isolate the fuel cell stack from external corrosive media. At the same time, the quick-release corrosion-resistant coating frame 4 adopts a detachable design and the disassembly method is simple, which facilitates later maintenance and replacement, significantly extending the service life of the fuel cell stack and reducing maintenance costs.

[0023] A quick-release anti-corrosion coating frame 4 for a closed-type titanium alloy cathode fuel cell stack facilitates rapid encapsulation and protection of the stack through modular design. The frame is made of titanium alloy and features an internal graphene composite coating 72 with excellent corrosion resistance, effectively isolating the stack from external corrosive media. Furthermore, the quick-release anti-corrosion coating frame 4 is detachable and easy to disassemble, facilitating future maintenance and replacement, significantly extending the stack's service life and reducing maintenance costs. During use, the quick-release anti-corrosion coating frame 4 is accessed via an internal hexagonal rotating cylinder 5 within four sets of operating slots 41. To achieve rapid assembly and disassembly, during installation, first attach the quick-release anti-corrosion coating frame 4 to the front of the fuel cell stack end plate body 1, then insert the linkage fixing rod 51 through the rod movable slot 61 of the upper and lower protective frames 6 and into the threaded slot 8 of the rear quick-release anti-corrosion coating frame 4. Rotate the internal hexagonal cylinder 5 to drive the short threaded rod 52 into the threaded slot 8 to complete the fastening. During disassembly, rotate in the opposite direction to separate the quick-release anti-corrosion coating frame 4. Its titanium alloy substrate layer 7 and the internal graphene composite coating 72 form a double protection. The modular design means that during maintenance, there is no need to disassemble the entire fuel cell stack. Only the quick-release anti-corrosion coating frame 4 and the upper and lower protective frames 6 need to be replaced to restore the anti-corrosion performance.

[0024] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A corrosion-resistant coating structure for a closed-type titanium alloy cathode fuel cell stack, comprising a stack end plate body (1), characterized in that: The front of the fuel cell stack end plate body (1) is detachably equipped with a quick-release anti-corrosion coating frame (4). A side baffle (3) is fixedly connected to one side of the fuel cell stack end plate body (1). Another set of fuel cell stack end plate bodies (1) is fixedly connected to the rear end of the side baffle (3). The fuel cell stack end plate body (1) is fixedly connected to both sides of the side baffle (3). The fuel cell stack end plate body (1) is provided with two sets.

2. The anti-corrosion coating structure of a closed-type titanium alloy cathode stack according to claim 1, characterized in that: The rear end of the fuel cell stack end plate body (1) is detachably equipped with a quick-release anti-corrosion coating frame (4), and the quick-release anti-corrosion coating frame (4) is provided in two sets. A single battery pack (2) is installed on the inner side between the two sets of fuel cell stack end plate bodies (1), and the single battery pack (2) is provided in multiple sets.

3. The anti-corrosion coating structure of a closed-type titanium alloy cathode stack according to claim 2, characterized in that: The single battery pack (2) is equipped with side baffles (3) on both sides, and the side baffles (3) are provided in two sets. The single battery pack (2) is equipped with upper and lower side protective frames (6) on the upper and lower sides, and the upper and lower side protective frames (6) are provided in two sets. The battery stack end plate body (1) is fixedly connected to the front sides of the battery stack interface group (11), and the battery stack interface group (11) penetrates through the front sides of the quick-release anti-corrosion coating frame (4).

4. The anti-corrosion coating structure of a closed-type titanium alloy cathode stack according to claim 3, characterized in that: The quick-release anti-corrosion coating frame (4) has an operating groove (41) inside its four sides, and the operating groove (41) has four sets. The operating groove (41) has a detachable internal hexagonal rotating cylinder (5), and a linkage fixing rod (51) is fixedly connected to one side of the internal hexagonal rotating cylinder (5).

5. The anti-corrosion coating structure of a closed-type titanium alloy cathode stack according to claim 4, characterized in that: A short threaded rod (52) is fixedly connected to the other side of the linkage fixing rod (51). The other set of quick-release anti-corrosion coating frames (4) has threaded grooves (8) inside. A short threaded rod (52) can be detached inside the threaded grooves (8). The linkage fixing rod (51) passes through the rod movable groove (61). The rod movable groove (61) is opened inside both sides of the upper and lower protective frames (6).

6. The anti-corrosion coating structure of a closed-type titanium alloy cathode stack according to claim 5, characterized in that: The linkage fixing rod (51) runs through the interior of the two sets of fuel cell stack end plate bodies (1). The quick-release anti-corrosion coating frame (4) and the upper and lower protective frames (6) are provided with a titanium alloy substrate layer (7). The titanium alloy substrate layer (7) is provided with a ceramic composite transition layer (71). The ceramic composite transition layer (71) is provided with a graphene composite coating (72).

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