INEOS electrolytic bath pressure leakage test device

Abstract

The utility model discloses an INEOS electrolytic bath pressure leakage testing device, which relates to the technical field of electrolytic bath testing, and comprises a sealing bottom plate, a sealing rubber mat, an electrolytic bath, a pressing strip, a steel frame and a plurality of screw rods, the electrolytic bath comprises a folding edge which extends outwards along the peripheral edge, a plurality of third through holes are uniformly formed in the folding edge, and a plurality of screw rods are arranged in the folding edge. The size of the sealing bottom plate is matched with that of the electrolytic cell, a first through hole is formed in the position, corresponding to the third through hole, of the sealing bottom plate, the size of the sealing rubber mat is matched with that of the folded edge, and a second through hole corresponding to the first through hole is formed in the sealing rubber mat; the steel frame, the pressing strip, the electrolytic bath, the sealing rubber mat and the sealing bottom plate are fixed by matching the plurality of screws on the edge of the steel frame with the nuts, the steel frame performs abutting protection on the surface of the electrolytic bath, deformation of the electrolytic bath caused by overlarge pressure is avoided, the rod cap extrudes the pressing strip to integrally press the folded edge of the electrolytic bath, the sealing performance is improved, and the service life of the electrolytic bath is prolonged. Therefore, the safety and the accuracy of the test are improved.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic cell testing technology, specifically to an INEOS electrolytic cell pressure leak testing device. Background Technology

[0002] In electrolytic production processes such as those in the chlor-alkali industry, the INEOS electrolytic cell is one of the key pieces of equipment. To ensure its long-term stable and safe operation, regular testing and maintenance are crucial, with pressure leak testing being an essential procedure for verifying the cell's sealing performance. The conventional pressure leak testing method involves placing the electrolytic cell on a sealed base plate, laying a sealing gasket between the cell's edge and the base plate, and securing it with bolts to create a relatively enclosed testing space. Subsequently, compressed gas is injected into the electrolytic cell's inlet using an external air pump, while a pressure gauge is connected to its outlet. The presence of leaks is determined by monitoring changes in the pressure gauge reading.

[0003] However, this method has the following drawbacks in practical applications: First, INEOS electrolytic cells have a large single-cell area, and the cells are mostly made of thin plates through stamping and welding, resulting in relatively limited structural rigidity. During pressure leak testing, if the inflation pressure is not properly controlled or is slightly too high, the internal gas pressure can easily cause local bulging or overall deformation of the cell wall, affecting not only the accuracy of the test results but also potentially causing irreversible damage to the electrolytic cell itself, posing a safety hazard. Second, existing technologies rely solely on the compression and deformation of the sealing gasket to achieve a seal. The sealing effect is affected by multiple factors such as the gasket material, aging degree, and uniformity of the clamping force. This often makes it difficult to form a durable, stable, and uniform seal around the entire circumference of the large cell, easily leading to micro-leakage during testing. This causes the pressure gauge reading to drop slowly or fluctuate, interfering with the accurate identification of the leak point and reducing the reliability and efficiency of the test. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides an INEOS electrolytic cell pressure leak testing device. Multiple screws and nuts along the edge of the steel frame, along with a pressure bar, electrolytic cell, sealing gasket, and sealing base plate, are used to secure the steel frame, pressure bar, electrolytic cell, sealing gasket, and sealing base plate. The steel frame provides abutment protection to the surface of the electrolytic cell, preventing deformation due to excessive pressure. The pressure bar is pressed against the edge of the electrolytic cell by the rod cap, improving sealing and thus enhancing the safety and accuracy of the test.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an INEOS electrolytic cell pressure leak testing device, comprising a sealing base plate, a sealing gasket, an electrolytic cell, a pressure strip, a steel frame, and multiple screws. The electrolytic cell includes a folded edge extending outward from its four edges, on which multiple third through holes are evenly distributed. The sealing base plate is sized to match the electrolytic cell and has a first through hole corresponding to the position of the third through hole. The sealing gasket is sized to match the folded edge and has a second through hole corresponding to the first through hole. The pressure strip is made of metal and its size matches the folded edge. A fourth through hole corresponding to the third through hole is formed on the pressure strip. The steel frame is composed of multiple square tubes connected together and its size... Matching the size of the electrolytic cell, multiple screws are evenly arranged at the edge of the bottom surface of the steel frame and corresponding to the position of the fourth through hole. Each screw includes a screw cap and a screw body. The diameter of the screw cap is larger than the diameter of the fourth through hole, and the length of the screw cap is equal to the height of the electrolytic cell. The diameter of the screw body is smaller than the diameter of the fourth through hole, and the side surface is provided with external threads. During installation, the screw body passes through the fourth through hole, the third through hole, the second through hole, and the first through hole in sequence and is fixed by screwing on the nuts. The bottom surface of the steel frame is in contact with the surface of the electrolytic cell. An air inlet is provided on one side of the electrolytic cell and is connected to an external air pump. An air outlet is provided on the side of the electrolytic cell away from the air inlet and is provided with a connecting pipe. A pressure gauge is connected to the end of the connecting pipe away from the air outlet.

[0006] Preferably, the steel frame is formed by welding multiple square tubes in a mesh-like arrangement, and the weld points are flattened.

[0007] Preferably, the pressure strip is made of four long steel plates welded together, and the weld points are flattened.

[0008] Preferably, the sealing gasket is a closed-cell sponge silicone rubber gasket.

[0009] Preferably, the sealing base plate is made of Q235B carbon steel and has a smooth surface treatment.

[0010] This invention provides a pressure leak testing device for INEOOS electrolytic cells, which has the following advantages:

[0011] 1. This utility model provides an external skeleton support for the electrolytic cell through a rigid steel frame, which effectively disperses and resists the internal test pressure and prevents the thin plate cell from deforming. At the same time, the mechanical clamping mechanism composed of pressure strips and screws applies uniform and controllable pressure to the sealing gasket, which significantly improves the sealing reliability and ensures the safety of the test process and the accuracy of the results.

[0012] 2. This utility model achieves simultaneous reinforcement and sealing of the tank by coordinating the rigid steel frame with the mechanically pressed pressure strip, thereby improving testing efficiency. The overall structure is simple, the steel frame and pressure strip are easy to manufacture, and it can also be customized according to different tank types, making the device both adaptable and versatile. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an INEOS electrolytic cell pressure leak testing device according to this utility model;

[0014] Figure 2 This is an exploded schematic diagram of an INEOS electrolytic cell pressure leak testing device according to the present invention.

[0015] In the diagram: 1. Sealing base plate; 2. Sealing gasket; 3. Electrolytic cell; 4. Pressure strip; 5. Steel frame; 6. Screw; 7. Nut; 8. Connecting pipe; 9. Pressure gauge; 11. First through hole; 21. Second through hole; 31. Folded edge; 32. Air inlet; 33. Air outlet; 34. Third through hole; 41. Fourth through hole; 61. Rod body; 62. Rod cap. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-2As shown, an INEOS electrolytic cell pressure leak testing device includes a sealing base plate 1, a sealing gasket 2, an electrolytic cell 3, a pressure strip 4, a steel frame 5, and multiple screws 6. The electrolytic cell 3 includes a flange 31 extending outward from its perimeter. Multiple third through holes 34 are evenly distributed on the flange 31. The sealing base plate 1 is sized to match the electrolytic cell 3 and has a first through hole 11 corresponding to the position of the third through hole 34. The sealing gasket 2 is sized to match the flange 31 and has a second through hole 21 corresponding to the first through hole 11. The pressure strip 4 is made of metal and is sized to match the flange 31. A fourth through hole 41 corresponding to the third through hole 34 is distributed on the pressure strip 4. The steel frame 5 is composed of multiple square tubes connected together and is sized to match the electrolytic cell 3. Multiple screws 6 are evenly distributed at the bottom edge of the steel frame 5 and correspond to the positions of the fourth through holes 41. Each screw 6 includes a rod cap 62 and a rod body 61. The diameter of the rod cap 62 is larger than that of the fourth through hole 41. The length of the rod cap 62 is equal to the height of the electrolytic cell 3. The diameter of the rod body 61 is smaller than that of the fourth through hole 41, and the side surface is provided with external threads. During installation, the rod body 61 passes through the fourth through hole 41, the third through hole 34, the second through hole 21, and the first through hole 11 in sequence and is fixed by screwing on the nut 7. The bottom surface of the steel frame 5 is in contact with the surface of the electrolytic cell 3. An air inlet 32 ​​is provided on one side of the electrolytic cell 3 and the air inlet 32 ​​is connected to an external air pump. An air outlet 33 is provided on the side away from the air inlet 32, and a connecting pipe 8 is provided on the air outlet 33. A pressure gauge 9 is connected to the end of the connecting pipe 8 away from the air outlet 33. The steel frame 5 is made of multiple square tubes welded together in a mesh pattern, and the weld points are flattened. The pressure strip 4 is made of four long steel plates welded together, and the weld points are flattened. The sealing gasket 2 is a closed-cell sponge silicone rubber gasket. The sealing base plate 1 is made of Q235B carbon steel and the surface is smoothed.

[0018] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, as follows:

[0019] According to the instruction manual Figures 1-2As can be seen, when using this utility model, the installation is performed first. The steel frame 5 is placed upside down on the platform, and the pressure strip 4 is fitted onto the rod body 61 through the fourth through hole 41. Since the diameter of the rod cap 62 is larger than the diameter of the fourth through hole 41, the rod cap 62 can support the pressure strip 4. Then, the electrolytic cell 3 is placed on the steel frame 5, and the rod body 61 passes through the third through hole 34 of the folded edge 31. Since the length of the rod cap 62 is equal to the height of the electrolytic cell 3 (excluding the height of the folded edge 31), the purpose is to ensure the surface of the electrolytic cell 3 is within this range. The sealing gasket 2 is fitted onto the rod body 61 through the second through hole 21, and then the sealing base plate 1 is pressed onto the sealing gasket 2, with the rod body 61 passing through the first through hole 11. Finally, the nut 7 is screwed onto the rod body 61 and tightened one by one. At this point, the electrolytic cell 3, the sealing gasket 2, and the sealing base plate 1 form a sealed space. Then, the steel frame 5, the pressure strip 4, the electrolytic cell 3, the sealing gasket 2, and the sealing steel plate are flipped over so that the steel frame 5 faces upwards for easy observation during testing. During testing, the air inlet 32 ​​of the electrolytic cell 3 is connected to the external air pump through the connecting pipe 8, and the air outlet 33 of the electrolytic cell 3 is connected to the pressure gauge 9 through the connecting pipe 8. The connecting pipe 8 has a certain pressure resistance. An air pump is used to pressurize the sealed space formed by the electrolytic cell 3, the sealing gasket 2, and the sealing base plate 1 through the air inlet 32. Pressurization is stopped once the pressure reaches the specified pressure, as indicated by pressure gauge 9. The pressure value on pressure gauge 9 is then observed for any change. If the pressure value remains unchanged within the specified time, the electrolytic cell 3 is considered to have no leaks. If the pressure value on pressure gauge 9 gradually decreases, it indicates a possible leak in the electrolytic cell 3 or a leak in a certain part of the device. The leak can then be located further by applying soapy water. During the testing process of this utility model, the rigid steel frame 5 provides external skeleton support for the electrolytic cell 3, effectively dispersing and resisting the internal test pressure and preventing deformation of the thin plate cell. At the same time, the mechanical clamping mechanism composed of the pressure bar 4 and the screw 6 applies uniform and controllable pressure to the sealing gasket 2, significantly improving the sealing reliability and ensuring the safety of the test process and the accuracy of the results. In addition, this utility model achieves simultaneous completion of cell reinforcement and sealing clamping by coordinating the rigid steel frame 5 and the mechanically clamping pressure bar 4, improving the testing efficiency. The overall structure is simple, and the steel frame 5 and pressure bar 4 are easy to manufacture and can be customized according to different cell types, making the device both adaptable and versatile.

[0020] The steel frame 5 is made of multiple square tubes welded together in a mesh pattern. The weld points are flattened to ensure a smooth and uniform contact with the surface of the electrolytic cell 3. This facilitates the observation of leaks and ensures the support and protection effect.

[0021] Among them, the pressure strip 4 is made of four long steel plates welded together, and the weld points are flattened. It has a simple structure, saves costs, is sturdy and durable, and has good effect.

[0022] Among them, the sealing gasket 2 is a closed-cell sponge silicone rubber gasket, which has excellent elasticity and compression rebound rate. It can achieve excellent sealing under low clamping force and can well compensate for the deformation that may occur when the electrolytic cell 3 folded edge 31 and the sealing base plate 1 are fixed.

[0023] Among them, the sealing base plate 1 is made of Q235B carbon steel with a smooth surface treatment, which has high strength, good flatness, and high sealing fit.

[0024] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An INEOS electrolyzer pressure leak test device, characterized in that, The utility model relates to a sealing bottom plate (1), sealing rubber (2), electrolytic cell (3), batten (4), steel frame (5) and a plurality of screw rod (6) are included, the edge outward extension of electrolytic cell (3) includes the hem (31) of four sides, a plurality of third through -hole (34) are evenly set up on the hem (31), the sealing bottom plate (1) with electrolytic cell (3) size matches and the position of corresponding third through -hole (34) sets up first through -hole (11), the sealing rubber (2) size with hem (31) matches, and the sealing rubber (2) sets up second through -hole (21) with corresponding first through -hole (11), the batten (4) is metal material and size with hem (31) matches, and the batten (4) sets up fourth through -hole (41) with corresponding third through -hole (34) to the position, the steel frame (5) is connected and is formed with a plurality of square tubes and size with electrolytic cell (3) size matches, a plurality of screw rod (6) are evenly arranged in the position of the lower bottom edge of steel frame (5) and with corresponding fourth through -hole (41) position, the screw rod (6) includes rod cap (62) and rod body (61), the diameter of rod cap (62) is greater than the hole diameter of fourth through -hole (41), and the length of rod cap (62) is equal to the height of electrolytic cell (3), and the diameter of rod body (61) is less than the diameter of fourth through -hole (41) and is provided with outer thread on the side surface, when installing, rod body (61) passes through fourth through -hole (41), third through -hole (34), second through -hole (21) and first through -hole (11) in proper order and is fixed by nut (7) screwing, the lower bottom surface of steel frame (5) is attached to the surface of electrolytic cell (3), electrolytic cell (3) is provided with air inlet (32) on one side and is connected with external air pump, and electrolytic cell (3) is provided with air outlet (33) on the side away from air inlet (32) and is provided with connecting pipe (8), and the one end away from air outlet (33) of connecting pipe (8) is connected with pressure gauge (9).

2. An INEOS Cell pressure leak test apparatus according to claim 1, characterised in that, The steel frame (5) is welded by a plurality of square tubes and is arranged in a net shape, and the welding point position is flattened.

3. An INEOS Cell pressure leak test apparatus as claimed in claim 1, wherein, The batten (4) is welded by four long steel plates, and the welding point position is flattened.

4. An INEOS Cell pressure leak test apparatus as claimed in claim 1, wherein, The sealing rubber (2) adopts a closed-cell sponge silica rubber pad.

5. An INEOS Cell pressure leak test apparatus as claimed in claim 1, wherein, The sealing bottom plate (1) adopts Q235B carbon steel and is smoothly treated on the surface.

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