Device for testing gas barrier property of electrolytic diaphragm
By designing an electrolytic diaphragm gas isolation test device including a test mechanism and a gas discharge mechanism, the problem that the electrolytic diaphragm detection device in the prior art cannot be effectively sealed and fixed, achieving higher detection accuracy and reliability, and conveniently detecting the ultimate compressive value of the electrolytic diaphragm.
Patent Information
- Application Number
- CN202421525706.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The existing electrolytic diaphragm detection device cannot effectively seal and fix the electrolytic diaphragm, resulting in air leakage or foreign objects entering during the detection process, affecting the accuracy and reliability of the detection data.
An electrolytic diaphragm gas isolation test device is designed. By setting up a test mechanism and a gas discharge mechanism, using components such as a fixed collar and vacuum pump, the electrolytic diaphragm is tightly fixed and air pressure detection is achieved to ensure isolation between the sealing cover and the internal space of the sealing tank.
It improves the accuracy of electrolytic diaphragm detection, prevents air leakage and foreign matters from entering, ensures the reliability of detection data, and realizes convenient detection of the limit compressive value of the electrolytic diaphragm through the air discharge mechanism.
Smart Images
Figure CN222800566U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gas barrier property testing of electrolytic diaphragms, in particular to a gas barrier property testing device of electrolytic diaphragms. Background Art
[0002] The electrolytic diaphragm is a key component in the electrolytic cell. It is placed between the cathode and the anode and plays an important role in conducting ions, blocking gases and separating electrolytes. It effectively controls ion transmission and gas separation during the electrolysis process, thereby ensuring the safety and efficiency of the electrolysis device. It is the key to the widespread application of electrochemical technology.
[0003] However, in the prior art, most detection devices are unable to seal and fix the electrolytic diaphragm, resulting in the spaces on both sides of the electrolytic diaphragm being connected, which may cause air leakage or foreign matter to enter during the detection process, thereby affecting the accuracy and reliability of the detection data. Utility Model Content
[0004] The purpose of the utility model is to provide an electrolytic diaphragm gas barrier testing device. By providing a testing mechanism, a fixing ring can fix the circular electrolytic diaphragm to avoid gaps when it is fixed, thereby isolating the internal space of the sealing cover and the sealing tank to the maximum extent, improving the accuracy of the detection, and solving the problem of gas leakage or foreign matter entering during the detection process.
[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:
[0006] The utility model is a device for testing the gas barrier property of an electrolytic diaphragm, comprising a bottom plate, on which a testing mechanism and a gas release mechanism are arranged, wherein the testing mechanism comprises a concentration detection component and an adjustment component;
[0007] The concentration detection component includes a sealed tank fixedly connected to the top surface of the bottom plate, the top surface of the bottom plate is fixedly connected to a vacuum pump, the output end of the vacuum pump is fixedly connected to a first conduit, the end of the first conduit extends to the interior of the sealed tank, the top surface of the sealed tank is threadedly connected to a sealing cover, the top surface of the sealing cover is fixedly connected to an electric cylinder, the output end of the electric cylinder slidably extends to the interior of the sealing cover, the output end of the electric cylinder is fixedly connected to a fixing ring, the top surface of the sealed tank is provided with a connecting hole, an electrolytic diaphragm is placed above the connecting hole, and the inner wall of the fixing ring is fixedly connected to a nitrogen concentration detection module.
[0008] Furthermore, the regulating assembly includes a connecting pipe connected to the outer wall of the sealed tank, the outer wall of the connecting pipe is fixedly connected to a fixed sleeve, the inner wall of the connecting pipe is slidably connected to a first ball valve, a vent hole is provided on the first ball valve, and the outer diameter of the first ball valve is the same as the inner diameter of the connecting pipe.
[0009] Furthermore, the inner diameter of the vent hole is smaller than the inner diameter of the connecting pipe, and an adjusting rod is fixedly connected to the outer wall of the first ball valve, and the top end of the adjusting rod is rotatably extended to the outside of the fixed sleeve.
[0010] Furthermore, the air release mechanism includes a pressure detection component, an air release component and a fixed pressure component. The pressure detection component includes an air release tank fixedly connected to the top surface of the base plate, the end of the connecting pipe extends to the interior of the air release tank, the top surface of the air release tank is fixedly connected to a sealing sleeve, the inner wall of the sealing sleeve is slidably connected to a piston, the top surface of the piston is fixedly connected to a detection rod, and the detection rod slidably extends to the top surface of the sealing sleeve.
[0011] Furthermore, a first spring is wound around the detection rod, the top end of the first spring is fixedly connected to the inner top wall of the sealing sleeve, and the bottom end of the first spring is fixedly connected to the top surface of the piston.
[0012] Furthermore, the air leaking assembly comprises an air leaking hole fixedly connected to the top surface of the air leaking tank, and a rubber plug is arranged on the inner wall of the air leaking hole.
[0013] Furthermore, the fixed pressure component includes an air outlet pipe connected to the outer wall of the detection rod, the end of the air outlet pipe is fixedly connected to an air outlet sleeve, a second ball valve is arranged inside the air outlet sleeve, the outer diameter of the second ball valve is larger than the inner diameter of the air outlet pipe, the inner wall of the air outlet sleeve is fixedly connected to a support plate, a second spring is fixedly connected between the support plate and the second ball valve, and a plurality of air outlet holes are opened on the support plate.
[0014] The utility model has the following beneficial effects:
[0015] 1. By setting up a testing mechanism, the electric cylinder can be opened to drive the fixed sleeve ring to move downward and make it press against the electrolytic diaphragm, so that the electrolytic diaphragm is fixed above the connecting hole, so that the electrolytic diaphragm separates the sealing cover and the inside of the sealed tank. At this time, the vacuum pump can be turned on to draw external nitrogen to the first conduit and guide it to the inside of the sealed tank. At this time, the air pressure inside the sealed tank increases suddenly, and the nitrogen concentration detection module can be used to observe the nitrogen content inside the sealing cover to detect the gas isolation performance of the electrolytic diaphragm. The fixed sleeve ring can fix the circular electrolytic diaphragm to avoid gaps when it is fixed, and the internal space of the sealing cover and the sealed tank is isolated to the maximum extent, thereby improving the accuracy of the detection.
[0016] 2. By providing a venting mechanism, after the electrolytic diaphragm reaches the limit value and ruptures, the air pressure inside the sealed tank may fluctuate. At this time, the air pressure inside the sealing sleeve will also fluctuate. In order to prevent the detection rod from falling, the second ball valve will block the inside of the air outlet pipe to prevent external gas from flowing into the inside of the sealing sleeve, so that the air pressure inside the sealing sleeve is constant. At this time, the ultimate pressure resistance value of the electrolytic diaphragm can be detected by observing the detection rod, which greatly improves the convenience of detection.
[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a front cross-sectional structural schematic diagram of the utility model;
[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;
[0022] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at B in the middle;
[0023] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure at C in the middle;
[0024] Figure 6 For this utility model Figure 2 Schematic diagram of the enlarged structure at D in the middle.
[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0026] 1. Bottom plate; 2. Testing mechanism; 3. Degassing mechanism; 4. Electrolytic diaphragm; 21. Sealing tank; 22. Vacuum pump; 23. First conduit; 24. Sealing cover; 25. Electric cylinder; 26. Fixed collar; 27. Connecting hole; 28. Nitrogen concentration detection module; 29. Connecting pipe; 291. Fixed sleeve; 292. First ball valve; 293. Vent hole; 294. Adjusting rod; 31. Degassing tank; 32. Sealing sleeve; 33. Piston; 34. Detection rod; 35. First spring; 36. Degassing hole; 361. Rubber plug; 37. Exhaust pipe; 38. Exhaust sleeve; 39. Second ball valve; 391. Support sheet; 392. Second spring; 393. Exhaust hole. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] See also Figure 1-6 As shown, the utility model is a device for testing the gas barrier properties of an electrolytic diaphragm, comprising a bottom plate 1, on which a testing mechanism 2 and a gas release mechanism 3 are arranged, wherein the testing mechanism 2 comprises a concentration detection component and an adjustment component;
[0029] The concentration detection component includes a sealed tank 21 fixedly connected to the top surface of the bottom plate 1, a vacuum pump 22 fixedly connected to the top surface of the bottom plate 1, a first conduit 23 fixedly connected to the output end of the vacuum pump 22, a terminal end of the first conduit 23 extending to the inside of the sealed tank 21, a sealing cover 24 threadedly connected to the top surface of the sealed tank 21, an electric cylinder 25 fixedly connected to the top surface of the sealing cover 24, an output end of the electric cylinder 25 slidingly extending to the inside of the sealing cover 24, a fixed collar 26 fixedly connected to the output end of the electric cylinder 25, a connecting hole 27 opened on the top surface of the sealed tank 21, an electrolytic diaphragm 4 placed above the connecting hole 27, a nitrogen concentration detection module 28 fixedly connected to the inner wall of the fixed collar 26, and an adjusting component including a connection arranged on A connecting tube 29 is disposed on the outer wall of the sealing tank 21, and a fixing sleeve 291 is fixedly connected to the outer wall of the connecting tube 29, and a first ball valve 292 is slidably connected to the inner wall of the connecting tube 29. A vent hole 293 is provided on the first ball valve 292. The outer diameter of the first ball valve 292 is the same as the inner diameter of the connecting tube 29, and the inner diameter of the vent hole 293 is smaller than the inner diameter of the connecting tube 29. An adjusting rod 294 is fixedly connected to the outer wall of the first ball valve 292, and the top end of the adjusting rod 294 is rotatably extended to the outside of the fixing sleeve 291. The fixing ring 26 can fix the circular electrolytic diaphragm 4 to avoid gaps when it is fixed, thereby isolating the sealing cover 24 and the internal space of the sealing tank 21 to the maximum extent, thereby improving the accuracy of detection.
[0030] The deflation mechanism 3 includes a pressure detection component, a deflation component and a fixed pressure component. The pressure detection component includes a deflation tank 31 fixedly connected to the top surface of the base plate 1, the end of the connecting pipe 29 extends to the inside of the deflation tank 31, the top surface of the deflation tank 31 is fixedly connected with a sealing sleeve 32, the inner wall of the sealing sleeve 32 is slidably connected with a piston 33, the top surface of the piston 33 is fixedly connected with a detection rod 34, the detection rod 34 slidably extends to the top surface of the sealing sleeve 32, a first spring 35 is wound around the detection rod 34, the top end of the first spring 35 is fixedly connected to the inner top wall of the sealing sleeve 32, the bottom end of the first spring 35 is fixedly connected to the top surface of the piston 33, the deflation component includes a deflation hole 36 fixedly connected to the top surface of the deflation tank 31, the inner wall of the deflation hole 36 is provided with a rubber plug 361, and the fixed pressure component includes An air outlet pipe 37 is connected to the outer wall of the detection rod 34, and an air outlet sleeve 38 is fixedly connected to the end of the air outlet pipe 37. A second ball valve 39 is arranged inside the air outlet sleeve 38. The outer diameter of the second ball valve 39 is larger than the inner diameter of the air outlet pipe 37. A support sheet 391 is fixedly connected to the inner wall of the air outlet sleeve 38. A second spring 392 is fixedly connected between the support sheet 391 and the second ball valve 39. A plurality of air outlet holes 393 are provided on the support sheet 391. By providing an air venting mechanism 3, in order to prevent the detection rod 34 from descending, the second ball valve 39 will block the inside of the air outlet pipe 37 to prevent external gas from flowing into the inside of the sealing sleeve 32, so that the internal air pressure of the sealing sleeve 32 is in a constant state. At this time, the ultimate compressive strength value of the electrolytic diaphragm 4 can be detected by observing the detection rod 34, which greatly improves the convenience of detection.
[0031] A specific application of this embodiment is: by providing the test mechanism 2, before testing the electrolytic diaphragm 4, it can be placed above the connection hole 27, and the sealing cover 24 can be twisted to thread the sealing cover 24 and the sealing tank 21, so that the inside of the sealing cover 24 and the inner wall of the sealing tank 21 are both in a sealed state, then the electric cylinder 25 can be opened to drive the fixing ring 26 to move downward and make it abut the electrolytic diaphragm 4, so that the electrolytic diaphragm 4 is fixed above the connection hole 27, so that the electrolytic diaphragm 4 separates the sealing cover 24 from the inside of the sealing tank 21, and then the vacuum pump 22 can be opened to draw external nitrogen to the first conduit 23 and guide it to the inside of the sealing tank 21, and then the inside of the sealing tank 21 is The gas pressure suddenly increases, and the nitrogen content inside the sealing cover 24 can be observed by the nitrogen concentration detection module 28 to detect the gas isolation performance of the electrolytic diaphragm 4. The fixing ring 26 can fix the circular electrolytic diaphragm 4 to avoid gaps when it is fixed, and isolate the sealing cover 24 and the internal space of the sealing tank 21 to the maximum extent, thereby improving the accuracy of the detection. The first ball valve 292, the vent hole 293 and the fixing sleeve 291 cooperate with each other. Before the detection, the conveying speed of the gas inside the connecting pipe 29 can be adjusted by rotating the adjusting rod 294, so that when the gas inside the bottom plate 1 expands, the gas can slowly pass through the inside of the connecting pipe 29, thereby avoiding excessive gas fluidity affecting the accuracy of gas detection;
[0032] By providing the air release mechanism 3, when the nitrogen in the sealing tank 21 flows into the air release tank 31 through the connecting pipe 29, the sealing tank 21 communicates with the inside of the air release tank 31, and the air pressure in the air release tank 31 increases, thereby squeezing the piston 33 to move upward, and the piston 33 pushes the detection rod 34 to move upward, so that the compressive strength of the electrolytic diaphragm 4 can be tested. At this time, the detection rod 34 is squeezed, and the air pressure in the sealing sleeve 32 increases suddenly. The increase in the air pressure in the sealing sleeve 32 pushes the second ball valve 39 to move outward, so that the piston 33 The internal gas is discharged from the air outlet 393 on the support plate 391. After the electrolytic diaphragm 4 reaches the limit value and ruptures, the air pressure inside the sealing tank 21 may fluctuate. At this time, the air pressure inside the sealing sleeve 32 will also fluctuate. In order to prevent the detection rod 34 from descending, the second ball valve 39 will block the inside of the air outlet pipe 37 to prevent external gas from flowing into the inside of the sealing sleeve 32, so that the air pressure inside the sealing sleeve 32 is constant. At this time, the ultimate pressure resistance value of the electrolytic diaphragm 4 can be detected by observing the detection rod 34, which greatly improves the convenience of detection.
[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A device for testing the gas barrier properties of an electrolytic diaphragm, comprising a bottom plate (1), characterized in that: The bottom plate (1) is provided with a testing mechanism (2) and an air release mechanism (3), wherein the testing mechanism (2) comprises a concentration detection component and an adjustment component; The concentration detection assembly comprises a sealed tank (21) fixedly connected to the top surface of a bottom plate (1); a vacuum pump (22) is fixedly connected to the top surface of the bottom plate (1); an output end of the vacuum pump (22) is fixedly connected to a first conduit (23); a terminal end of the first conduit (23) extends into the interior of the sealed tank (21); a sealing cover (24) is threadedly connected to the top surface of the sealed tank (21); an electric cylinder (25) is fixedly connected to the top surface of the sealing cover (24); an output end of the electric cylinder (25) slidably extends into the interior of the sealing cover (24); a fixing ring (26) is fixedly connected to the output end of the electric cylinder (25); a connecting hole (27) is provided on the top surface of the sealed tank (21); an electrolytic diaphragm (4) is placed above the connecting hole (27); and a nitrogen concentration detection module (28) is fixedly connected to the inner wall of the fixing ring (26).
2. The gas barrier property testing device of an electrolytic diaphragm according to claim 1, characterized in that: The regulating assembly comprises a connecting pipe (29) connected to the outer wall of the sealing tank (21); the outer wall of the connecting pipe (29) is fixedly connected to a fixing sleeve (291); the inner wall of the connecting pipe (29) is slidably connected to a first ball valve (292); a vent hole (293) is provided on the first ball valve (292); and the outer diameter of the first ball valve (292) is the same as the inner diameter of the connecting pipe (29).
3. The gas barrier property testing device of an electrolytic diaphragm according to claim 2, characterized in that: The inner diameter of the vent hole (293) is smaller than the inner diameter of the connecting pipe (29); an adjusting rod (294) is fixedly connected to the outer wall of the first ball valve (292); and the top end of the adjusting rod (294) is rotatably extended to the outside of the fixed sleeve (291).
4. The gas barrier property testing device of electrolytic diaphragm according to claim 3, characterized in that: The air release mechanism (3) comprises a pressure detection component, an air release component and a fixed pressure component. The pressure detection component comprises an air release tank (31) fixedly connected to the top surface of the base plate (1). The end of the connecting pipe (29) extends to the interior of the air release tank (31). The top surface of the air release tank (31) is fixedly connected to a sealing sleeve (32). The inner wall of the sealing sleeve (32) is slidably connected to a piston (33). The top surface of the piston (33) is fixedly connected to a detection rod (34). The detection rod (34) slidably extends to the top surface of the sealing sleeve (32).
5. The gas barrier property testing device of electrolytic diaphragm according to claim 4, characterized in that: A first spring (35) is wound around the detection rod (34), the top end of the first spring (35) is fixedly connected to the inner top wall of the sealing sleeve (32), and the bottom end of the first spring (35) is fixedly connected to the top surface of the piston (33).
6. The gas barrier property testing device of electrolytic diaphragm according to claim 5, characterized in that: The air leak component comprises an air leak hole (36) fixedly connected to the top surface of the air leak tank (31), and a rubber plug (361) is provided on the inner wall of the air leak hole (36).
7. The gas barrier property testing device of electrolytic diaphragm according to claim 6, characterized in that: The fixed pressure assembly comprises an air outlet pipe (37) connected to the outer wall of the detection rod (34); the end of the air outlet pipe (37) is fixedly connected to an air outlet sleeve (38); a second ball valve (39) is arranged inside the air outlet sleeve (38); the outer diameter of the second ball valve (39) is larger than the inner diameter of the air outlet pipe (37); a support plate (391) is fixedly connected to the inner wall of the air outlet sleeve (38); a second spring (392) is fixedly connected between the support plate (391) and the second ball valve (39); and a plurality of air outlet holes (393) are provided on the support plate (391).