Electrolytic bath anti-overflow sealing gasket with special-shaped section
By designing an electrolyzer anti-overflow sealing gasket with a special-shaped cross-section and utilizing multiple fan-shaped sealing pieces and a movable snap-in structure, a tight fit between the inner and outer sealing rings is achieved, solving the problem of insufficient sealing performance of traditional sealing gaskets, preventing alkali solution overflow, and improving the sealing performance and hydrogen production efficiency of the electrolyzer.
Patent Information
- Application Number
- CN202422831734.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-20
AI Technical Summary
The sealing performance of traditional sealing gaskets cannot meet the requirements of alkaline water electrolyzers, resulting in alkaline solution overflow and leakage, polluting the environment and reducing hydrogen production efficiency.
An electrolytic cell overflow prevention sealing gasket with a special-shaped cross-section is designed, including multiple sector-shaped sealing sheets between a sealing inner ring and a sealing outer ring, overflow grooves are provided between adjacent sector-shaped sealing sheets, arc grooves and straight grooves are provided on the sector-shaped sealing sheets, and the arc plate and the straight plate are movably clamped, and the tight fit between the sealing inner ring and the outer ring is achieved through the cooperation of the extrusion plate.
Effectively prevent alkali solution overflow, improve sealing performance, avoid alkali solution leakage, and ensure the normal operation of the electrolyzer and hydrogen production efficiency.
Smart Images
Figure CN223424635U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of sealing gasket, specifically is a special section's electrolytic cell anti -overflow sealing gasket. BACKGROUND
[0002] Alkaline water electrolysis hydrogen production is the mature process technology that can realize industrialization and large-scale application at present, and the alkaline water electrolytic cell is the core device of electrolytic hydrogen production.
[0003] The end cover of the alkaline water electrolytic cell is fixed on the electrolytic cell through bolts, and the insulation and sealing of the end cover are the key to ensure the normal operation of the electrolytic cell. The sealing gasket is the core component for reliable and efficient operation of the alkaline water electrolytic cell. If the sealing function of the sealing gasket decreases or fails, it will cause the alkaline solution to overflow and leak, seriously pollute the environment, and cause the hydrogen production efficiency to decrease or even stop. However, the sealing performance of the traditional sealing gasket cannot meet the needs. Therefore, we propose a special section's electrolytic cell anti -overflow sealing gasket. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a special section's electrolytic cell anti -overflow sealing gasket to solve the problems raised in the above background technology.
[0005] To achieve the above purpose, the utility model provides the following technical scheme:
[0006] A special section's electrolytic cell anti -overflow sealing gasket, comprising a sealing inner ring and a sealing outer ring, a plurality of fan-shaped sealing pieces are arranged between the sealing inner ring and the sealing outer ring, a liquid overflow groove is arranged between adjacent fan-shaped sealing pieces, a first arc-shaped groove, a second arc-shaped groove and a straight groove are arranged on the fan-shaped sealing piece, the first arc-shaped groove and the second arc-shaped groove are communicated with the straight groove respectively, a first arc-shaped plate is movably connected in the first arc-shaped groove, a second arc-shaped plate is movably connected in the second arc-shaped groove, a first straight plate movably connected in the straight groove is arranged on the first arc-shaped plate, a second straight plate movably connected in the second arc-shaped plate is arranged on the second arc-shaped groove, a clamping groove is arranged on the fan-shaped sealing piece, an extrusion plate is movably connected in the clamping groove, and the bottom end of the extrusion plate is matched with the first straight plate and the second straight plate respectively.
[0007] The special section's electrolytic cell anti -overflow sealing gasket as described above: a plurality of fan-shaped sealing pieces are equally angularly and circumferentially distributed between the sealing inner ring and the sealing outer ring.
[0008] The special section's electrolytic cell anti -overflow sealing gasket as described above: the first arc-shaped groove is located in the inner end of the fan-shaped sealing piece close to the sealing outer ring, the cross section of the first arc-shaped groove is arc-shaped, and the outer dimension of the first arc-shaped plate is matched with the inner dimension of the first arc-shaped groove.
[0009] As described above, an electrolytic cell overflow prevention sealing gasket with a special cross-section: the second arc groove is located inside one end of the fan-shaped sealing plate close to the sealing inner ring, the cross-section of the second arc groove is arc-shaped, and the outer surface size of the second arc plate is adapted to the inner surface size of the second arc groove.
[0010] As described above, an electrolytic cell overflow prevention sealing gasket with a special-shaped cross-section: the outer dimensions of the first straight plate and the second straight plate are respectively adapted to the inner dimensions of the straight cell; the end surfaces of the first straight plate and the second straight plate close to the extrusion plate are respectively inclined surfaces; the bottom ends of the extrusion plates are two symmetrically arranged inclined surfaces; the inclined surfaces of the bottom ends of the extrusion plates are respectively fitted with the end inclined surfaces of the first straight plate and the second straight plate.
[0011] The electrolytic cell overflow prevention sealing gasket with a special-shaped cross-section as described above: the inner surface size of the slot is adapted to the outer surface size of the extruded plate, and the upper surface of the extruded plate is flat and higher than the plane where the upper surface of the fan-shaped sealing sheet is located.
[0012] The electrolytic cell overflow prevention sealing gasket with a special-shaped cross-section as described above: the sealing inner ring, the sealing outer ring, and the sector-shaped sealing piece body are made of rubber.
[0013] Compared with the prior art, the present invention has the following beneficial effects: by providing a plurality of sector-shaped sealing sheets between the sealing inner ring and the sealing outer ring, and by providing overflow grooves between adjacent sector-shaped sealing sheets, when the sealing function of the sealing inner ring decreases or the seal fails, the leaked alkali solution will flow back into the electrolytic cell through the overflow groove, thereby achieving an anti-overflow effect;
[0014] The first arc groove, the second arc groove and the straight groove are provided on the fan-shaped sealing sheet, the first arc groove and the second arc groove are respectively connected to the straight groove, the first arc plate is movably connected in the first arc groove, the second arc plate is movably connected in the second arc groove, the first arc plate is provided with a first straight plate movably connected to the inside of the straight groove, the second arc groove is provided with a second straight plate movably connected to the inside of the second arc plate, the fan-shaped sealing sheet is provided with a card slot, the card slot is movably connected with an extrusion plate, the bottom ends of the extrusion plate are respectively matched with the first straight plate and the second straight plate, and the sealing gasket is provided between the end cover and the electrolytic cell. During installation, the sealing gasket is placed in the edge sealing groove of the electrolytic cell port, and the end cover is pressed against the sealing gasket to seal the end cover and the electrolytic cell. When the end cover is pressed against the upper surface of the fan-shaped sealing piece, the extrusion plate is squeezed, and the extrusion plate is driven to extrude downward. The second straight plate and the extrusion plate are squeezed to both sides respectively through the inclined surface of the bottom end of the extrusion plate fitting with the second straight plate and the inclined surface of the extrusion plate, thereby driving the second arc plate and the first arc plate to squeeze the sealing inner ring and the sealing outer ring respectively, so that the sealing inner ring and the sealing outer ring are tightly fitted with the inner wall of the sealing groove, thereby improving the sealing performance of the sealing gasket and preventing the alkali solution from overflowing and leaking from the edges of the sealing inner ring and the sealing outer ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The figure is a schematic diagram of the three-dimensional structure of an electrolytic cell anti-overflow sealing gasket with a special-shaped cross-section.
[0016] Figure 2 The diagram is a top view of the structure of an electrolytic cell overflow prevention sealing gasket with a special-shaped cross-section.
[0017] Figure 3 The present invention is a structural schematic diagram of a partially cutaway fan-shaped sealing piece of an electrolytic cell overflow prevention sealing gasket with a special-shaped cross-section.
[0018] Figure 4 for Figure 3 Schematic diagram of the local enlarged structure.
[0019] Figure 5 The diagram is a schematic diagram of the explosion structure of a sector-shaped sealing piece of an electrolytic cell overflow prevention sealing gasket with a special-shaped cross-section after partial cross-section.
[0020] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure.
[0021] In the figure: 1. Sealing inner ring; 2. Sealing outer ring; 3. Fan-shaped sealing plate; 4. Overflow groove; 5. First arc groove; 6. Second arc groove; 7. Straight groove; 8. First arc plate; 9. Second arc plate; 10. First straight plate; 11. Second straight plate; 12. Extrusion plate; 13. Card slot. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0023] Please refer to Figures 1-6 As an embodiment of the utility model, a sealing gasket for preventing overflow of electrolytic cell with special-shaped section includes a sealing inner ring 1 and a sealing outer ring 2, a plurality of fan-shaped sealing pieces 3 are arranged between the sealing inner ring 1 and the sealing outer ring 2, a liquid overflow groove 4 is arranged between adjacent fan-shaped sealing pieces 3, a first arc-shaped groove 5, a second arc-shaped groove 6 and a straight groove 7 are arranged on the fan-shaped sealing piece 3, the first arc-shaped groove 5 and the second arc-shaped groove 6 are respectively communicated with the straight groove 7, a first arc-shaped plate 8 is movably connected in the first arc-shaped groove 5, a second arc-shaped plate 9 is movably connected in the second arc-shaped groove 6, a first straight plate 10 movably connected in the straight groove 7 is arranged on the first arc-shaped plate 8, a second straight plate 11 movably connected in the second arc-shaped plate 9 is arranged on the second arc-shaped groove 6, a clamping groove 13 is arranged on the fan-shaped sealing piece 3, an extrusion plate 12 is movably connected in the clamping groove 13, and the bottom end of the extrusion plate 12 is matched with the first straight plate 10 and the second straight plate 11 respectively.
[0024] In the embodiment, the plurality of fan-shaped sealing pieces 3 are arranged between the sealing inner ring 1 and the sealing outer ring 2, and the liquid overflow groove 4 is arranged between adjacent fan-shaped sealing pieces 3. When the sealing function of the sealing inner ring 1 is reduced or invalid, the leaked alkali solution can flow back into the electrolytic cell through the liquid overflow groove 4, so that the effect of preventing overflow is achieved.
[0025] And the fan-shaped sealing piece 3 is provided with a first arc groove 5, a second arc groove 6 and a straight groove 7, the first arc groove 5 and the second arc groove 6 are connected to the straight groove 7 respectively, the first arc groove 5 is movably connected with a first arc plate 8, the second arc groove 6 is movably connected with a second arc plate 9, the first arc plate 8 is provided with a first straight plate 10 movably connected to the inside of the straight groove 7, the second arc groove 6 is provided with a second straight plate 11 movably connected to the inside of the second arc plate 9, the fan-shaped sealing piece 3 is provided with a card groove 13, the card groove 13 is movably connected with an extrusion plate 12, the bottom ends of the extrusion plate 12 are respectively matched with the first straight plate 10 and the second straight plate 11, and the end cover and the second straight plate are connected by the present sealing gasket. When installing between electrolytic cells, the sealing gasket is placed in the edge sealing groove of the electrolytic cell port, and the end cover is pressed against the sealing gasket to seal the end cover and the electrolytic cell. When the end cover is pressed against the upper surface of the fan-shaped sealing piece 3, the extrusion plate 12 is squeezed, driving the extrusion plate 12 to be squeezed downward, and the second straight plate 11 and the extrusion plate 12 are squeezed to both sides respectively through the inclined surface of the bottom end of the extrusion plate 12 and the inclined surface of the extrusion plate 12, thereby driving the second arc plate 9 and the first arc plate 8 to squeeze the sealing inner ring 1 and the sealing outer ring 2 respectively, so that the sealing inner ring 1 and the sealing outer ring 2 are tightly fitted to the inner wall of the sealing groove, thereby improving the sealing performance of the sealing gasket.
[0026] As a further solution of the present invention, a plurality of sector-shaped sealing sheets 3 are circumferentially distributed at equal angles between the sealing inner ring 1 and the sealing outer ring 2 .
[0027] In this embodiment, a plurality of sector-shaped sealing sheets 3 are used to connect the sealing inner ring 1 and the sealing outer ring 2, and at the same time constitute the main body of the sealing gasket. An overflow groove 4 is opened between adjacent sector-shaped sealing sheets 3. When the sealing function of the sealing inner ring 1 decreases or the seal fails, the leaked alkali liquid will flow back into the electrolytic cell through the overflow groove 4, thereby achieving an anti-overflow effect.
[0028] As a further solution of the present invention, the first arc groove 5 is located inside one end of the sector-shaped sealing plate 3 close to the sealing outer ring 2. The cross-section of the first arc groove 5 is arc-shaped, and the outer dimensions of the first arc plate 8 are adapted to the inner dimensions of the first arc groove 5.
[0029] In this embodiment, the first curved plate 8 is movably clamped inside the first curved groove 5, and one side of the first curved plate 8 is in contact with the inner wall of the first curved groove 5, so that when the first curved plate 8 is squeezed and moved, it will squeeze the inner wall of the first curved groove 5, so that the extrusion force is transmitted to the sealing outer ring 2, and the sealing outer ring 2 is squeezed through the first curved groove 5, so that the sealing outer ring 2 is tightly in contact with the inner wall of the sealing groove, thereby improving the sealing performance of the sealing gasket.
[0030] As a further solution of the present invention, the second arc groove 6 is located inside one end of the sector sealing piece 3 close to the sealing inner ring 1, the cross section of the second arc groove 6 is arc-shaped, and the outer dimensions of the second arc plate 9 are adapted to the inner dimensions of the second arc groove 6.
[0031] In this embodiment, the second arc plate 9 is movably clamped inside the second arc groove 6, and one side of the second arc plate 9 is in contact with the inner wall of the second arc groove 6, so that when the second arc plate 9 is squeezed and moved, it will squeeze the inner wall of the second arc groove 6, so that the extrusion force is transmitted to the sealing inner ring 1, and the sealing inner ring 1 is squeezed by the second arc plate 9, so that the sealing inner ring 1 is tightly fitted with the inner wall of the sealing groove, thereby improving the sealing performance of the sealing gasket.
[0032] As a further solution of the present invention, the outer dimensions of the first straight plate 10 and the second straight plate 11 are respectively adapted to the inner dimensions of the linear groove 7, and the end faces of the first straight plate 10 and the second straight plate 11 close to the extrusion plate 12 are respectively inclined surfaces, and the bottom end of the extrusion plate 12 is two symmetrically arranged inclined surfaces, and the inclined surfaces of the bottom ends of the extrusion plate 12 are respectively fitted with the end inclined surfaces of the first straight plate 10 and the second straight plate 11.
[0033] In this embodiment, when the end cover is pressed against the upper surface of the fan-shaped sealing sheet 3, the extrusion plate 12 is squeezed, driving the extrusion plate 12 to be squeezed downward, and the second straight plate 11 and the extrusion plate 12 are squeezed to both sides by the inclined surface of the bottom end of the extrusion plate 12 fitting with the inclined surface of the second straight plate 11 and the extrusion plate 12, thereby driving the second straight plate 11 and the extrusion plate 12 to move to both sides respectively.
[0034] As a further solution of the present invention, the inner dimensions of the card slot 13 are adapted to the outer dimensions of the extrusion plate 12 , and the upper surface of the extrusion plate 12 is flat and higher than the plane where the upper surface of the sector-shaped sealing piece 3 is located.
[0035] In this embodiment, the extrusion plate 12 can be movably engaged in the card slot 13, so that the extrusion plate 12 can move up and down, and the upper surface of the extrusion plate 12 is flat and protrudes from the plane where the upper surface of the fan-shaped sealing piece 3 is located. Therefore, when the end cover is pressed against the upper surface of the fan-shaped sealing piece 3, the extrusion plate 12 will be squeezed, driving the extrusion plate 12 to be squeezed downward.
[0036] As a further solution of the present invention, the sealing inner ring 1, the sealing outer ring 2, and the sector-shaped sealing piece 3 are made of rubber.
[0037] In this embodiment, the sealing inner ring 1, the sealing outer ring 2, and the fan-shaped sealing sheet 3 constitute the main body of the sealing gasket. The rubber has excellent elasticity and sealing performance, can adapt to various environments and working conditions, and ensure the sealing effect.
[0038] When installing between the end cover and the electrolytic cell, the sealing gasket is placed in the edge sealing groove of the electrolytic cell port, and the end cover is pressed against the sealing gasket to seal the end cover and the electrolytic cell. When the end cover is pressed against the upper surface of the fan-shaped sealing piece 3, the extrusion plate 12 is squeezed, driving the extrusion plate 12 to extrude downward, and the second straight plate 11 and the extrusion plate 12 are squeezed to both sides by the inclined surface of the bottom end of the extrusion plate 12 and the inclined surface of the extrusion plate 12, thereby driving the second arc plate 9 and the first arc plate 8 to squeeze the sealing inner ring 1 and the sealing outer ring 2 respectively, so that the sealing inner ring 1 and the sealing outer ring 2 are tightly fitted with the inner wall of the sealing groove, thereby improving the sealing performance of the sealing gasket and preventing the alkali solution from overflowing and leaking from the edges of the sealing inner ring 1 and the sealing outer ring 2.
[0039] The above embodiments are exemplary rather than restrictive, so any technical solution of the present invention that can be implemented in other specific forms without departing from the spirit or basic features of the present invention is included in the present invention.
Claims
1. An electrolytic cell anti-overflow sealing gasket with a special-shaped cross-section, comprising a sealing inner ring (1) and a sealing outer ring (2), characterized in that: A plurality of sector-shaped sealing sheets (3) are provided between the sealing inner ring (1) and the sealing outer ring (2), and overflow grooves (4) are provided between adjacent sector-shaped sealing sheets (3). A first arc-shaped groove (5), a second arc-shaped groove (6) and a straight groove (7) are provided on the sector-shaped sealing sheet (3), and the first arc-shaped groove (5) and the second arc-shaped groove (6) are respectively connected to the straight groove (7). A first arc-shaped plate (8) is movably connected in the first arc-shaped groove (5), and a second arc-shaped plate (9) is movably connected in the second arc-shaped groove (6). A second arc-shaped plate (9), wherein the first arc-shaped plate (8) is provided with a first straight plate (10) movably engaged with the inside of the straight groove (7), and the second arc-shaped groove (6) is provided with a second straight plate (11) movably engaged with the inside of the second arc-shaped plate (9), and the fan-shaped sealing sheet (3) is provided with a slot (13), and an extrusion plate (12) is movably engaged with the slot (13), and the bottom end of the extrusion plate (12) is respectively engaged with the first straight plate (10) and the second straight plate (11).
2. The electrolytic cell overflow prevention gasket with a special-shaped cross-section according to claim 1, characterized in that: The plurality of sector-shaped sealing sheets (3) are circumferentially distributed at equal angles between the sealing inner ring (1) and the sealing outer ring (2).
3. The electrolytic cell overflow prevention gasket with a special-shaped cross-section according to claim 1, characterized in that: The first arc groove (5) is located inside one end of the sector-shaped sealing sheet (3) close to the sealing outer ring (2), the cross section of the first arc groove (5) is arc-shaped, and the outer dimensions of the first arc plate (8) are adapted to the inner dimensions of the first arc groove (5).
4. The electrolytic cell overflow prevention sealing gasket with a special-shaped cross-section according to claim 1, characterized in that: The second arc groove (6) is located inside one end of the sector-shaped sealing sheet (3) close to the sealing inner ring (1), the cross section of the second arc groove (6) is arc-shaped, and the outer dimensions of the second arc plate (9) are adapted to the inner dimensions of the second arc groove (6).
5. The electrolytic cell overflow prevention sealing gasket with a special-shaped cross-section according to claim 1, characterized in that: The outer dimensions of the first straight plate (10) and the second straight plate (11) are respectively adapted to the inner dimensions of the straight groove (7); the end surfaces of the first straight plate (10) and the second straight plate (11) close to the extrusion plate (12) are respectively inclined surfaces; the bottom end of the extrusion plate (12) is formed of two symmetrically arranged inclined surfaces; the inclined surfaces of the bottom end of the extrusion plate (12) are respectively fitted with the end inclined surfaces of the first straight plate (10) and the second straight plate (11).
6. The electrolytic cell overflow prevention gasket with a special-shaped cross-section according to claim 1, characterized in that: The inner dimensions of the slot (13) are compatible with the outer dimensions of the extrusion plate (12); the upper surface of the extrusion plate (12) is flat and higher than the plane where the upper surface of the sector-shaped sealing sheet (3) is located.
7. The electrolytic cell overflow prevention gasket with a special-shaped cross-section according to claim 1, characterized in that: The sealing inner ring (1), the sealing outer ring (2), and the sector-shaped sealing piece (3) are made of rubber.