A device for measuring the conductivity of a diaphragm of a hydrogen production plant

Abstract

The utility model relates to a kind of device for measuring diaphragm conductivity of hydrogen production device, including box, the top of box is downwardly provided with detection groove, cathode electrolytic cell and anode electrolytic cell are respectively provided in the left and right sides of detection groove of box, the left and right side walls of detection groove are respectively provided with through hole being communicated with cathode electrolytic cell and anode electrolytic cell.This utility model relates to the technical field of hydrogen production system.The device for measuring diaphragm conductivity of hydrogen production device, by the anode clamp, cathode clamp and detection groove being set, the anode clamp and cathode clamp can be supported using detection groove, so that it always keeps the state of clamping diaphragm, so that the installation detection of diaphragm is more convenient, the replacement of diaphragm subsequent is also more simple, and the detection efficiency of diaphragm can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen production system technology, and in particular to a device for measuring the conductivity of the diaphragm in a hydrogen production device. Background Technology

[0002] Overview of Hydrogen Production Diaphragms: Hydrogen production diaphragms play a crucial role in the electrolysis of water to produce hydrogen. Their main function is to separate the cathode and anode, preventing the mixing of hydrogen and oxygen, thereby improving gas purity and reducing the risk of explosion. The quality of the diaphragm directly affects the efficiency of the electrolysis process and the yield of hydrogen.

[0003] According to Chinese Patent Publication No. CN217556313U, this utility model relates to the field of hydrogen production system technology, and particularly to a device for measuring the conductivity of a diaphragm in a hydrogen production device. The technical solution includes: a diaphragm body is clamped and fixed between a cathode clamp and an anode clamp; a cathode electrolysis cell is installed on the side of the cathode clamp opposite to the diaphragm body; an anode electrolysis cell is installed on the side of the anode clamp opposite to the diaphragm body; a reference electrode body and a working cathode are inserted inside the cathode electrolysis cell; a working anode is inserted inside the anode electrolysis cell; and the reference electrode body, working cathode, and working anode are all electrically connected to an electrochemical workstation via wires. This utility model device is simple, easy to disassemble, and can measure different types of diaphragms. After offline measurement, it can generate electrolyte and diaphragm conductivity data at different temperatures, allowing for data interpolation during online operation of the hydrogen production equipment.

[0004] According to the aforementioned patent, the diaphragm is clamped between the cathode clamp and the anode clamp using bolts. This fixing method requires frequent tightening and loosening of bolts during diaphragm testing, making the installation and replacement process very slow. This results in a long waiting time for continuous testing of multiple diaphragms, leading to low testing efficiency. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a device for measuring the conductivity of the diaphragm of a hydrogen production device, so as to solve the technical problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A device for measuring the conductivity of a diaphragm in a hydrogen production unit includes a housing with a detection groove formed at the top of the housing and cathode electrolysis cells and anolysis cells formed on the left and right sides of the detection groove, respectively. Through holes communicating with the cathode electrolysis cells and anolysis cells are formed on the left and right side walls of the detection groove, respectively.

[0008] The connection unit is installed inside the detection tank. The connection unit includes a connecting post, a sliding sleeve, and an electrode plate. There are two connecting posts, which are respectively installed in two through holes. The outer wall of the connecting post is slidably connected to the sliding sleeve. The end of the sliding sleeve near the detection tank is fixedly connected to the electrode plate. The surface of the electrode plate is provided with multiple contacts. The contacts are connected to the connecting posts through wires, so that the two sides of the detection tank are connected to the anodic electrolytic cell and the cathodic electrolytic cell, respectively.

[0009] A diaphragm mounting assembly is installed in a detection groove. The diaphragm mounting assembly includes a cathode clamp and an anode clamp, both of which are slidably installed in the detection groove. A gap is left between the cathode clamp and the anode clamp for clamping the diaphragm. A connecting groove is opened on the opposite side of the cathode clamp and the anode clamp, corresponding to the position of the electrode plate. A contact point two that contacts contact point one is provided in the connecting groove.

[0010] Furthermore, a track groove is provided near the sliding sleeve in the through hole, and a limit ring is slidably connected in the track groove. The limit ring is fixedly connected to the sliding sleeve, and the side of the limit ring away from the detection groove is connected to the track groove by a spring.

[0011] Furthermore, both the cathode clamp and the anode clamp have slots at their tops that communicate with the connecting groove. A prompting rod is slidably connected inside the slot, and the prompting rod has an inclined surface machined at the bottom opening of the slot for upward movement under pressure.

[0012] Furthermore, the sidewall of the electrode plate is provided with a clearance groove for avoiding the indicator rod, and the top of the clearance groove is machined with a second inclined surface for fitting with the first inclined surface.

[0013] Furthermore, the sidewall of the detection groove has a raised anti-fooling part, and the outer wall of the anode clamp has an anti-fooling groove for avoiding the anti-fooling part.

[0014] Furthermore, the anodic electrolytic cell is provided with a working anode, and the cathodic electrolytic cell is provided with a working cathode and a reference electrode. The working anode, working cathode, and reference electrode are all connected to the electrochemical workstation via wires.

[0015] In summary, this utility model has at least one of the following beneficial technical effects:

[0016] 1. The device for measuring the conductivity of a diaphragm in a hydrogen production device, by means of an anode clamp, a cathode clamp, and a detection groove, can use the detection groove to support the anode clamp and the cathode clamp, so that they always hold the diaphragm, thereby making the installation and testing of the diaphragm more convenient and the subsequent replacement of the diaphragm simpler, and can effectively improve the detection efficiency of the diaphragm.

[0017] 2. This device for measuring the conductivity of a diaphragm in a hydrogen production apparatus, through its connection unit, can not only be used to connect with the anode clamp and the cathode clamp, but also provide pressure to the anode clamp and the cathode clamp during connection, making their contact with the diaphragm tighter, thereby effectively improving the detection accuracy of the diaphragm. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a device for measuring the conductivity of a diaphragm in a hydrogen production apparatus according to the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of a device for measuring the conductivity of a diaphragm in a hydrogen production apparatus, according to the present invention.

[0021] Figure 3 This is a schematic diagram of the connecting unit in a device for measuring the conductivity of a diaphragm in a hydrogen production apparatus according to this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the connecting unit and the cathode clamp in the device for measuring the conductivity of the diaphragm of a hydrogen production apparatus according to this utility model.

[0023] Figure 5 This is a schematic diagram of the diaphragm mounting assembly before installation in a device for measuring the conductivity of a hydrogen production diaphragm according to this utility model.

[0024] In the diagram, 1. Housing; 2. Connecting unit; 201. Electrical connection post; 202. Sliding sleeve; 203. Electrode plate; 3. Diaphragm mounting assembly; 301. Cathode clamp; 302. Anode clamp; 4. Detection groove; 5. Cathode electrolytic cell; 6. Anode electrolytic cell; 7. Through hole; 8. Contact one; 9. Connecting groove; 10. Contact two; 11. Track groove; 12. Limiting ring; 13. Spring; 14. Slot; 15. Indicator rod; 16. Inclined surface one; 17. Clearance groove; 18. Inclined surface two; 19. Foolproof part; 20. Foolproof groove; 21. Working anode; 22. Working cathode; 23. Reference electrode. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example:

[0027] Reference Figure 1- Figure 5 The present invention discloses a device for measuring the conductivity of a diaphragm in a hydrogen production device, comprising a housing 1, a detection groove 4 formed at the top of the housing 1, a cathode electrolysis cell 5 and an anode electrolysis cell 6 formed on the left and right sides of the detection groove 4 respectively, and through holes 7 formed on the left and right side walls of the detection groove 4 respectively, which communicate with the cathode electrolysis cell 5 and the anode electrolysis cell 6.

[0028] The connecting unit 2 is disposed in the detection tank 4. The connecting unit 2 includes an electrical connection post 201, a sliding sleeve 202, and an electrode plate 203. There are two electrical connection posts 201, which are respectively disposed in two through holes 7. The sliding sleeve 202 is slidably connected to the outer wall of the electrical connection post 201. The electrode plate 203 is fixedly connected to one end of the sliding sleeve 202 near the detection tank 4. The surface of the electrode plate 203 is provided with multiple contacts 8. The contacts 8 are connected to the electrical connection post 201 through wires, so that the two sides of the detection tank 4 are connected to the anodic electrolytic cell 6 and the cathodic electrolytic cell 5 respectively.

[0029] The diaphragm mounting assembly 3 is disposed in the detection groove 4. The diaphragm mounting assembly 3 includes a cathode clamp 301 and an anode clamp 302. Both the cathode clamp 301 and the anode clamp 302 are slidably disposed in the detection groove 4. A gap is left between the cathode clamp 301 and the anode clamp 302 for clamping the diaphragm. A connecting groove 9 is provided on the opposite side of the cathode clamp 301 and the anode clamp 302 corresponding to the position of the electrode plate 203. A second contact 10 that contacts the first contact 8 is provided in the connecting groove 9.

[0030] In this embodiment, through Figure 1 It can be seen that a detection groove 4 is provided on the top of the housing 1, and a diaphragm installation assembly 3 is inserted into the detection groove 4. The diaphragm installation assembly 3 includes a cathode clamp 301 and an anode clamp 302. Both the cathode clamp 301 and the anode clamp 302 are slidably disposed in the detection groove 4. A gap is left between the cathode clamp 301 and the anode clamp 302 for clamping the diaphragm, which can be used for quick installation of the diaphragm.

[0031] Subsequently Figure 2It can be seen that the box 1 has a cathode electrolytic cell 5 and an anode electrolytic cell 6 on the left and right sides of the detection tank 4, respectively. The left and right side walls of the detection tank 4 have through holes 7 that communicate with the cathode electrolytic cell 5 and the anode electrolytic cell 6, respectively. Each of the two through holes 7 is equipped with a connection unit 2. The connection unit 2 includes a connecting post 201, a sliding sleeve 202 and an electrode plate 203. The connecting post 201 is set in the through hole 7. The outer wall of the connecting post 201 is slidably connected to the sliding sleeve 202. The end of the sliding sleeve 202 near the detection tank 4 is fixedly connected to the electrode plate 203. The surface of the electrode plate 203 is provided with multiple contacts 8. The contacts 8 are connected to the connecting post 201 through wires, so that the two sides of the detection tank 4 are connected to the anode electrolytic cell 6 and the cathode electrolytic cell 5, respectively. Meanwhile, a connecting groove 9 is provided on the opposite side of the cathode clamp 301 and the anode clamp 302, corresponding to the position of the electrode plate 203. A second contact 10 is provided in the connecting groove 9 to contact the first contact 8. When the diaphragm mounting assembly 3, carrying the diaphragm, is inserted into the detection groove 4, the electrode plate 203 will be inserted into the connecting groove 9, so that the first contact 8 and the second contact 10 are in contact. At this time, the anode clamp 302 will be connected to the anode electrolytic cell 6, and the cathode clamp 301 will be connected to the cathode electrolytic cell 5. The conductivity test of the diaphragm can then begin, making the installation and testing of the diaphragm and subsequent diaphragm replacement simpler and more convenient, and effectively improving the detection efficiency of the diaphragm.

[0032] In a further preferred embodiment of this utility model, such as Figure 2 - Figure 5 As shown, a track groove 11 is provided in the through hole 7 near the sliding sleeve 202. A limit ring 12 is slidably connected in the track groove 11. The limit ring 12 is fixedly connected to the sliding sleeve 202. The side of the limit ring 12 away from the detection groove 4 is connected to the track groove 11 by a spring 13.

[0033] The top of both the cathode clamp 301 and the anode clamp 302 is provided with a slot 14 that communicates with the connecting groove 9. A prompting rod 15 is slidably connected in the slot 14. The prompting rod 15 is located at the bottom opening of the slot 14 and has an inclined surface 16 for moving upward under pressure.

[0034] The side wall of the electrode plate 203 is provided with a clearance groove 17 for avoiding the indicator rod 15, and the top of the clearance groove 17 is machined with a second inclined surface 18 for fitting with the first inclined surface 16.

[0035] In this embodiment, after the anode clamp 302 and cathode clamp 301 are inserted into the detection groove 4, the inner wall of the detection groove 4 provides a limit for the anode clamp 302 and cathode clamp 301 to stabilize the diaphragm. However, this method cannot guarantee that the anode clamp 302 and cathode clamp 301 are tightly fitted, thus affecting the subsequent testing of the diaphragm.

[0036] Therefore, looking towards Figure 2 It can be observed that a track groove 11 is provided near the sliding sleeve 202 in the through hole 7. A limiting ring 12 is slidably connected in the track groove 11. The limiting ring 12 is fixedly connected to the sliding sleeve 202. The side of the limiting ring 12 away from the detection groove 4 is connected to the track groove 11 by a spring 13, so that the spring 13 provides a pushing force to the sliding sleeve 202, causing the electrode plate 203 to move into the detection groove 4. At this time, after the anode clamp 302 and the cathode clamp 301 are inserted into the detection groove 4, they will be squeezed by the electrode plate 203, thereby increasing the clamping force of the anode clamp 302 and the cathode clamp 301 on the diaphragm, so that the anode clamp 302 and the cathode clamp 301 fit more closely to the diaphragm, improving the detection accuracy of the diaphragm.

[0037] Because of the spring 13, after the electrode plate 203 is inserted into the connecting groove 9, the anode clamp 302 and the cathode clamp 301 cannot be removed from the detection groove 4. Therefore, looking at... Figure 4 It can be observed that both the cathode clamp 301 and the anode clamp 302 have slots 14 at their tops that communicate with the connecting groove 9. A guiding rod 15 is slidably connected within the slot 14. The guiding rod 15, located at the bottom opening of the slot 14, has a bevel 16 for upward movement under pressure. Then, looking at... Figure 3 An avoidance groove 17 is provided on the side wall of the electrode plate 203 to avoid the indicator rod 15. The top of the avoidance groove 17 is machined with an inclined surface 18 for fitting with the inclined surface 16. At this time, before the anode clamp 302 and the cathode clamp 301 are installed into the detection groove 4, they will be like this. Figure 5 As shown in the diagram, the indicator rod 14 is completely submerged in the slot 14 under the action of gravity. After the anode clamp 302 and cathode clamp 301 are installed into the detection slot 4, the electrode plate 203 extends into the connecting slot 9, causing the inclined surface 18 of the clearance slot 17 to press against the inclined surface 16 of the indicator rod 15. At this time, the indicator rod 15 is lifted up, so that the top of the indicator rod 15 protrudes from the slot 14, indicating to the staff that the anode clamp 302 and cathode clamp 301 have been installed.

[0038] When the diaphragm needs to be replaced after the inspection is completed, simply press down the indicator rod 15 to make the inclined surface 16 press against the inclined surface 18, which will squeeze the electrode plate 203 into the connecting groove 9, thereby achieving the effect of separating the electrode plate 203 from the anode clamp 302 and the cathode clamp 301, so that it can be easily removed and the diaphragm can be replaced.

[0039] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the side wall of the detection groove 4 has a protrusion forming a foolproof part 19, and the outer wall of the anode clamp 302 has a foolproof groove 20 for avoiding the foolproof part 19.

[0040] In this embodiment, since the anode and cathode are made of different materials, in order to avoid the anode clamp 302 and cathode clamp 301 being installed in reverse, a foolproof part 19 is formed on the side wall of the detection groove 4, and a foolproof groove 20 is provided on the outer wall of the anode clamp 302 to avoid the foolproof part 19.

[0041] In a further preferred embodiment of this utility model, such as Figure 1 As shown, the anodic electrolytic cell 6 is provided with a working anode 21, and the cathodic electrolytic cell 5 is provided with a working cathode 22 and a reference electrode 23. The working anode 21, working cathode 22 and reference electrode 23 are all connected to the electrochemical workstation through wires.

[0042] In this embodiment, a working anode 21 is provided in the anodic electrolytic cell 6, and a working cathode 22 and a reference electrode 23 are provided in the cathodic electrolytic cell 5. The working anode 21, working cathode 22 and reference electrode 23 are all connected to the electrochemical workstation through wires. The electrochemical workstation can be used to supply power to the box 1 for detecting the conductivity of the diaphragm.

[0043] The electrochemical workstation mentioned above is the same as the electrochemical workstation in Chinese Patent Publication No. CN217556313U, and no improvements have been made to it. Therefore, its working principle and the test procedure for membrane conductivity will not be described in detail.

[0044] The implementation principle of the above embodiment is as follows: the working anode 21, working cathode 22 and reference electrode 23 are connected to the electrochemical workstation by means of wires, so that the box 1 is connected to the electrochemical workstation. Then, the diaphragm is clamped between the anode clamp 302 and the cathode clamp 301 and inserted into the detection slot 4 to realize the rapid installation of the diaphragm. After the diaphragm detection is completed, the anode clamp 302 and the cathode clamp 301 can be removed by simply pressing down the indicator rod 15, so as to realize the rapid replacement of the diaphragm and improve the detection efficiency of the diaphragm.

[0045] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for measuring the conductivity of a diaphragm in a hydrogen production apparatus, characterized in that, It includes a box body (1), a detection groove (4) is provided on the top of the box body (1) facing downwards, a cathode electrolytic cell (5) and an anode electrolytic cell (6) are provided on the left and right sides of the box body (1) located in the detection groove (4), and through holes (7) communicating with the cathode electrolytic cell (5) and the anode electrolytic cell (6) are provided on the left and right side walls of the detection groove (4); The connection unit (2) is set in the detection tank (4). The connection unit (2) includes a terminal post (201), a sliding sleeve (202) and an electrode plate (203). There are two terminals (201), which are respectively set in two through holes (7). The outer wall of the terminal post (201) is slidably connected to the sliding sleeve (202). The end of the sliding sleeve (202) near the detection tank (4) is fixedly connected to the electrode plate (203). The surface of the electrode plate (203) is provided with multiple contact points (8). The contact points (8) are connected to the terminal post (201) through wires, so that the two sides of the detection tank (4) are connected to the anode electrolytic cell (6) and the cathode electrolytic cell (5) respectively. The diaphragm mounting assembly (3) is set in the detection groove (4). The diaphragm mounting assembly (3) includes a cathode clamp (301) and an anode clamp (302). Both the cathode clamp (301) and the anode clamp (302) are slidably set in the detection groove (4). A gap is left between the cathode clamp (301) and the anode clamp (302) for clamping the diaphragm. A connecting groove (9) is opened on the side of the cathode clamp (301) and the anode clamp (302) corresponding to the position of the electrode plate (203). A contact point (10) that contacts the first contact point (8) is provided in the connecting groove (9).

2. The apparatus for measuring the conductivity of a diaphragm in a hydrogen production device according to claim 1, characterized in that, The through hole (7) is provided with a track groove (11) near the sliding sleeve (202). A limit ring (12) is slidably connected in the track groove (11). The limit ring (12) is fixedly connected to the sliding sleeve (202). The side of the limit ring (12) away from the detection groove (4) is connected to the track groove (11) by a spring (13).

3. The device for measuring the conductivity of a diaphragm in a hydrogen production apparatus according to claim 2, characterized in that, The top of both the cathode clamp (301) and the anode clamp (302) is provided with a slot (14) that communicates with the connecting groove (9). A prompting rod (15) is slidably connected in the slot (14). The prompting rod (15) is located at the bottom opening of the slot (14) and has a bevel (16) for moving upward under pressure.

4. The apparatus for measuring the conductivity of a diaphragm in a hydrogen production device according to claim 3, characterized in that, The side wall of the electrode plate (203) is provided with a clearance groove (17) for avoiding the indicator rod (15), and the top of the clearance groove (17) is machined with a second inclined surface (18) for fitting with the first inclined surface (16).

5. The apparatus for measuring the conductivity of a diaphragm in a hydrogen production device according to claim 4, characterized in that, The sidewall of the detection groove (4) has a protrusion forming a foolproof part (19), and the outer wall of the anode clamp (302) has a foolproof groove (20) for avoiding the foolproof part (19).

6. The apparatus for measuring the conductivity of a diaphragm in a hydrogen production device according to claim 5, characterized in that, The anodic electrolytic cell (6) is provided with a working anode (21), and the cathodic electrolytic cell (5) is provided with a working cathode (22) and a reference electrode (23). The working anode (21), working cathode (22) and reference electrode (23) are all connected to the electrochemical workstation through wires.

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