Pure water tank for PEM hydrogen production equipment

Abstract

The utility model discloses a pure water tank for PEM hydrogen production equipment, which comprises a pure water tank body, the top of the pure water tank body is provided with a tank cover, the top of the tank cover is provided with a pure water inlet pipe, the top of the tank cover is provided with an oxygen emptying pipe, one side of the pure water tank body is provided with a pure water backflow inlet pipe, and two sides of the pure water tank body are respectively provided with two pressure-resistant seats. By arranging the oxygen emptying pipe, the baffle, the side plates, the arc-shaped blocks, the convex rods and the pressure-resistant plates, the height of the baffle is adjusted according to the circulation amount of pure water in the electrolytic bath, and the potential safety hazard caused by the fact that air enters the electrolytic bath due to the fact that the flow is too large and vortexes are generated on the water surface is avoided; and one end of the convex rod is embedded into the arc-shaped block for clamping, so that the pressure-resistant plate can be mounted at the top of the tank cover in a limiting manner, the pressure-resistant plate can shield and shelter the tank cover, the external force resistance strength of the top of the pure water tank body is improved, and the service lives of the top of the pure water tank body and the tank cover are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of PEM hydrogen production equipment, in particular to a pure water tank for PEM hydrogen production equipment. Background Art

[0002] PEM (proton exchange membrane) hydrogen production equipment is a technology that uses proton exchange membrane electrolysis to generate hydrogen. The working principle of this equipment is based on the process of water electrolysis. By applying electric current, water molecules are decomposed into hydrogen and oxygen. The PEM electrolyzer has a high current density and energy efficiency, and can produce more hydrogen in a smaller volume. In PEM hydrogen production equipment, the main purpose of the pure water tank is to provide a high-purity water source for the electrolysis process to ensure the smooth progress of the electrolysis process. By centrally managing the water source and treatment process, the pure water tank can reduce water resource consumption and improve overall economic benefits.

[0003] Excessive pure water flow may cause air to enter the electrolyzer due to vortexes on the water surface, posing a safety hazard. The oxygen inside the pure water tank cannot be directly discharged, which may cause liquid level imbalance and lead to accidents. The top and sides of the pure water tank are not equipped with anti-external force structures, so when it is collided, the surface is prone to dents and damage, shortening the life of the pure water tank. The pure water tank is not easy to lift and transport. Therefore, it is particularly important to design a pure water tank for PEM hydrogen production equipment. Utility Model Content

[0004] The purpose of the present utility model is to provide a pure water tank for PEM hydrogen production equipment to solve the problem proposed in the above background technology that the oxygen inside the pure water tank cannot be directly discharged, and the top and sides of the pure water tank are not provided with an external force resistance structure, so when it is collided, the surface is easily dented and damaged.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pure water tank for PEM hydrogen production equipment, comprising a pure water tank body, a tank cover is provided on the top of the pure water tank body, a pure water inlet pipe is provided on the top of the tank cover, an oxygen exhaust pipe is provided on the top of the tank cover, a pure water reflux pipe is provided on one side of the pure water tank body, two pressure-resistant seats are provided on both sides of the pure water tank body, side plates are provided on the tops of the four pressure-resistant seats, hanging rings are provided inside the four pressure-resistant seats, arc blocks are fixedly installed on one side of the four side plates, abutment rods are provided on the tops of the four arc blocks, pressure-resistant plates are provided at one end of the four abutment rods, and a baffle is provided inside the pure water tank body.

[0006] As a preferred technical solution of the present invention, a sewage pipe is provided on the front of the pure water tank body, and a fallback outlet pipe is provided on the front of the pure water tank body.

[0007] As a preferred technical solution of the present invention, a liquid sampling tube is provided on the front of the pure water tank body, and a gas sampling tube is provided on the back of the pure water tank body.

[0008] As a preferred technical solution of the present invention, a convex rod is fixedly installed on the other end of the four abutting rods, and the four convex rods are respectively engaged and connected with the four arc-shaped blocks.

[0009] As a preferred technical solution of the present invention, one end portion of the four protruding rods is fixedly sleeved with a retaining ring, and the diameter of the four retaining rings is larger than the diameter of the four abutting rods.

[0010] As a preferred technical solution of the present invention, a plurality of reinforcing ribs are provided between the inner walls of two adjacent side panels.

[0011] As a preferred technical solution of the present invention, the positions of the two adjacent side panels are corresponding to each other.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model provides a pure water tank for PEM hydrogen production equipment, which is equipped with an oxygen exhaust pipe, a baffle, a side plate, an arc block, a convex rod and a pressure plate. The height of the baffle is installed according to the circulation volume of the pure water in the electrolyzer to avoid excessive flow, vortex generated on the water surface, and air entering the electrolyzer, which brings safety hazards. Oxygen can be directly exhausted through the oxygen exhaust pipe and isolated from the hydrogen-side gas-liquid separation device, avoiding accidents caused by uneven liquid levels in traditional devices. One end of the convex rod is embedded in the interior of the arc block for engagement, so that the pressure plate can be limitedly installed on the top of the box cover. The pressure plate can also shield and protect the box cover, thereby improving the external force resistance of the top of the pure water tank body and extending the service life of both.

[0014] 2. The utility model provides a pure water tank for PEM hydrogen production equipment, which is provided with a pressure-resistant seat, reinforcing ribs, hanging rings and retaining rings. The protruding rod and the pressure-resistant plate are connected by abutting rods. Since the diameter of the retaining ring is larger than the diameter of the protruding rod, when the protruding rod is embedded in the arc block and engaged, the bottom surface of the retaining ring fits tightly with the surface of the arc block, which can prevent the protruding rod from sliding downward and enable the pressure-resistant plate to remain at the same height. The hook used for the lifting equipment is hooked with the four hanging rings to lift the pure water tank body, which is convenient for carrying the pure water tank body to the working area. The four side panels and multiple reinforcing ribs are used in combination to wrap and cover both sides of the pure water tank body, thereby improving the pressure resistance of both sides of the pure water tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural diagram of the utility model;

[0016] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a schematic diagram of the back structure of the utility model;

[0018] Figure 4 It is a partial exploded view of the utility model.

[0019] In the figure: 1. Pure water tank body; 2. Pure water inlet pipe; 3. Oxygen exhaust pipe; 4. Pure water return inlet pipe; 5. Sewage pipe; 6. Fallback outlet pipe; 7. Liquid sampling pipe; 8. Gas sampling pipe; 9. Pressure-resistant seat; 10. Side plate; 11. Reinforcement rib; 12. Hanging ring; 13. Arc block; 14. Protruding rod; 15. Abutment rod; 16. Pressure-resistant plate; 17. Retaining ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4 The utility model provides a technical solution for a pure water tank for a PEM hydrogen production equipment:

[0022] Example 1:

[0023] like Figure 1-3As shown, a kind of PEM hydrogen production equipment pure water tank, including pure water tank body 1, the top of pure water tank body 1 is provided with tank cover, the top of tank cover is provided with pure water inlet pipe 2, the top of tank cover is provided with oxygen emptying pipe 3, the side of pure water tank body 1 is provided with pure water backflow inlet pipe 4, both sides of pure water tank body 1 are provided with two compression seats 9, the top of four compression seats 9 is provided with side plate 10, the inside of four compression seats 9 is hung with hanging ring 12, the side of four side plates 10 is fixedly installed with arc block 13, the top of four arc blocks 13 is provided with abutment rod 15, one end of four abutment rods 15 is provided with compression plate 16, the inside of pure water tank body 1 is provided with baffle, oxygen can be directly emptied by oxygen emptying pipe 3, and is isolated with hydrogen side gas-liquid separation device, avoid the accident caused by the liquid level of traditional device not flat horizontal, the end of convex rod 14 is embedded into the inside of arc block 13 and is clamped, so that compression plate 16 can be limit installed to the top of tank cover, compression plate 16 can also shield and shelter tank cover, improve the anti-external force strength of the top of pure water tank body 1, prolong the service life of both.

[0024] Example two:

[0025] On the basis of example one, as shown in Figure 1 And Figure 4 The other end of four abutment rods 15 is fixedly installed with convex rod 14, four convex rods 14 are clamped and connected with four arc blocks 13 respectively, the end of four convex rods 14 is fixedly provided with stop ring 17, the diameter of four stop rings 17 is greater than the diameter of four abutment rods 15, a kind of PEM hydrogen production equipment pure water tank is provided with compression seat 9, reinforcing rib 11, hanging ring 12 and stop ring 17, convex rod 14 and compression plate 16 are connected by abutment rod 15, and because the diameter of stop ring 17 is greater than the diameter of convex rod 14, when convex rod 14 is embedded into the inside of arc block 13 and is clamped, the bottom surface of stop ring 17 is tightly combined with the surface of arc block 13, so that the sliding of convex rod 14 can be avoided.

[0026] Working principle: PEM proton exchange membrane hydrogen production equipment is a technology that uses proton exchange membrane to electrolyze water to generate hydrogen. The working principle of this equipment is based on the process of water electrolysis. By applying electric current, water molecules are decomposed into hydrogen and oxygen. PEM electrolyzer has high current density and energy efficiency, and can produce more hydrogen in a smaller volume. In PEM hydrogen production equipment, the main purpose of the pure water tank is to provide a high-purity water source for the electrolysis process to ensure the smooth progress of the electrolysis process. By centrally managing water sources and treatment processes, the pure water tank can reduce water resource consumption and improve Overall economic benefits, excessive pure water flow may cause air to enter the electrolyzer due to vortexes on the water surface, which may bring safety hazards. The oxygen inside the pure water tank cannot be directly emptied, and the liquid level may be unbalanced, resulting in accidents. The top and sides of the pure water tank are not equipped with anti-external force structures, so when it is collided with, the surface is prone to dents and damage, shortening the life of the pure water tank. The pure water tank is not easy to lift and transport. Therefore, it is particularly important to design a pure water tank for PEM hydrogen production equipment. The baffle height is installed according to the circulation volume of the pure water in the electrolyzer to avoid excessive flow and vortexes on the water surface, which may cause air to enter the electrolyzer. The oxygen can be directly discharged through the oxygen exhaust pipe 3 and isolated from the hydrogen side gas-liquid separation device, thus avoiding accidents caused by uneven liquid level in traditional devices. One end of the convex rod 14 is embedded in the interior of the arc block 13 for engagement, so that the pressure plate 16 can be limitedly installed on the top of the box cover. The pressure plate 16 can also shield and protect the box cover, thereby improving the external force resistance of the top of the pure water tank body 1 and extending the service life of both. The convex rod 14 and the pressure plate 16 are connected by the abutment rod 15, and because the diameter of the retaining ring 17 is larger than that of the convex rod 14, the retaining ring 17 can be fixed to the top of the box cover. The diameter of the rod 14. When the protruding rod 14 is embedded in the arc block 13 and engaged, the bottom surface of the retaining ring 17 fits tightly with the surface of the arc block 13, which can prevent the protruding rod 14 from sliding downward, so that the pressure plate 16 can be maintained at the same height. The hook used for the lifting equipment is hooked with the four hanging rings 12 to each other, and the pure water tank body 1 can be lifted, which is convenient for carrying the pure water tank body 1 to the working area. The four side panels 10 and multiple reinforcing ribs 11 are used in combination to wrap and cover both sides of the pure water tank body 1, thereby improving the pressure resistance of both sides of the pure water tank body 1.

[0027] In the description of the present invention, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly specified and limited, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pure water tank for a PEM hydrogen production device, comprising a pure water tank body (1), characterized in that: The top of the pure water tank body (1) is provided with a tank cover, the top of the tank cover is provided with a pure water inlet pipe (2), the top of the tank cover is provided with an oxygen exhaust pipe (3), and one side of the pure water tank body (1) is provided with a pure water return inlet pipe (4). Two pressure-resistant seats (9) are provided on both sides of the pure water tank body (1), the tops of the four pressure-resistant seats (9) are provided with side plates (10), the insides of the four pressure-resistant seats (9) are hung with hanging rings (12), one side of the four side plates (10) is fixedly installed with an arc block (13), the tops of the four arc blocks (13) are provided with abutment rods (15), and one end of the four abutment rods (15) is provided with a pressure-resistant plate (16), and the inside of the pure water tank body (1) is provided with a baffle.

2. A pure water tank for PEM hydrogen production equipment according to claim 1, characterized in that: A sewage discharge pipe (5) is provided on the front of the pure water tank body (1), and a fallback outlet pipe (6) is provided on the front of the pure water tank body (1).

3. A pure water tank for PEM hydrogen production equipment according to claim 2, characterized in that: A liquid sampling tube (7) is provided on the front of the pure water tank body (1), and a gas sampling tube (8) is provided on the back of the pure water tank body (1).

4. A pure water tank for a PEM hydrogen production equipment according to claim 1, characterized in that: The other ends of the four abutting rods (15) are all fixedly mounted with convex rods (14), and the four convex rods (14) are respectively engaged and connected with the four arc-shaped blocks (13).

5. A pure water tank for PEM hydrogen production equipment according to claim 4, characterized in that: One end portion of the four protruding rods (14) is fixedly sleeved with a retaining ring (17), and the diameter of the four retaining rings (17) is greater than the diameter of the four abutting rods (15).

6. A pure water tank for a PEM hydrogen production equipment according to claim 1, characterized in that: A plurality of reinforcing ribs (11) are provided between the inner walls of two adjacent side panels (10).

7. A pure water tank for a PEM hydrogen production device according to claim 6, characterized in that: The positions of the two adjacent side panels (10) are corresponding to each other.

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