Leakage liquid detection device in electrolytic cell and electrolytic cell

Abstract

The application discloses a kind of electrolytic cell leakage liquid detection device and electrolytic cell, it is related to electrolytic cell technical field, detection device includes insulating filler layer, first conducting part and second conducting part, second conducting part is set to the electrolytic cell periphery, second conducting part is provided with the avoidance space for the leakage liquid passing;First conducting part is spaced apart by insulating filler layer with second conducting part, insulating filler layer is provided with the leakage liquid via hole being communicated with avoidance space, leakage liquid via hole is used for liquid from avoidance space to flow to first conducting part;First conducting part is conducted by leakage liquid with second conducting part.The technical scheme of the application is installed in electrolytic cell by electrolytic cell leakage liquid detection device, when electrolytic cell leaks, first conducting part and second conducting part form the passage, so that detection device can realize real-time monitoring to the leakage condition of electrolytic cell liquid, to reduce the risk of short-circuit fire safety accident caused by liquid leakage.

Description

Technical Field

[0001] This application relates to the field of electrolytic cell technology, and in particular to a device for detecting leaked liquid in an electrolytic cell and an electrolytic cell. Background Technology

[0002] As electrolyzers become larger and the size of the electrode plates increases, current pressure-type alkaline water electrolyzer technology faces several challenges. Existing electrolyzers use tie rods to secure the end plates and internal components together; however, over long-term operation, leakage may occur, leading to short circuits between the electrode plates. Therefore, failure to detect short circuits caused by leakage in a timely manner could result in serious safety accidents. Utility Model Content

[0003] The main purpose of this application is to propose a liquid leakage detection device and an electrolytic cell for real-time monitoring of liquid leakage, so as to issue an early warning and shut down the machine in time when liquid leakage is detected, thereby reducing the risk of safety accidents.

[0004] To achieve the above objectives, the electrolytic cell leakage detection device proposed in this application includes:

[0005] A second conductive element is disposed around the periphery of the electrolytic cell, and the second conductive element is provided with a clearance space for the leaked liquid to pass through;

[0006] A first conductive element is provided at an interval between an insulating filler layer and a second conductive element. The insulating filler layer is provided with a leakage liquid through hole that communicates with the clearance space. The leakage liquid through hole is used to allow the liquid to flow from the clearance space to the first conductive element.

[0007] The first conductive element is connected to the second conductive element through the leaked liquid.

[0008] In one embodiment, at least one of the first conductive element and the second conductive element is embedded in the insulating filler layer.

[0009] In one embodiment, both the first conductive element and the second conductive element are embedded in the insulating filler layer.

[0010] In one embodiment, the detection device has a cylindrical structure extending through both ends, with one of the first conductive element and the second conductive element spaced apart from the other, and the insulating filler layer is cylindrical.

[0011] In one embodiment, the first conductive element includes a plurality of first conductive segments, and the second conductive element includes a plurality of second conductive segments, wherein the extension direction of the first conductive segments is different from the extension direction of the second conductive segments.

[0012] In one embodiment, at least the first conductive segment is spiral or annular, and a plurality of the first conductive segments are distributed along the axial direction of the detection device, wherein the clearance space is the interval between the first conductive segments of two adjacent layers.

[0013] In one embodiment, the plurality of first conductive segments are connected by connecting rods.

[0014] In one embodiment, the second conductive segment extends along the axial direction of the detection device and is spaced apart circumferentially along the detection device, with the clearance space formed between two adjacent second conductive segments.

[0015] In one embodiment, a plurality of the second conductive segments are connected by a connecting ring.

[0016] In one embodiment, a plurality of the first conductive segments and / or a plurality of the second conductive segments are uniformly distributed in their distribution direction.

[0017] In one embodiment, the two ends of the first conductive element and the two ends of the second conductive element are respectively provided.

[0018] In one embodiment, the insulating filler layer is configured as a porous material.

[0019] In one embodiment, the insulating filler layer is configured as a rigid material and has a plurality of interconnected liquid passage holes.

[0020] In one embodiment, the detection device further includes a detection circuit connecting the first conductive element and the second conductive element. The detection circuit is equipped with a signal switch, which is used to acquire a signal indicating that the first conductive element and the second conductive element are conducting.

[0021] This application also proposes an electrolytic cell, which includes end plates, electrode plates, tie rods, and the aforementioned detection device. The electrode plates are sandwiched between two oppositely arranged end plates, and the two end plates are tightened together by a plurality of tie rods. The detection device is installed on the outer periphery of at least one tie rod or at least one electrode plate.

[0022] The technical solution of this application involves installing a liquid leakage detection device in the electrolytic cell. When a leak occurs in the electrolytic cell, the liquid can flow through the leakage liquid passage in the immersed insulating filler layer, so that the first conductive element and the second conductive element form a path. Thus, the detection device can monitor the liquid leakage in the electrolytic cell in real time, so that when a liquid leakage is detected, the system can immediately issue an early warning and stop the machine in time, or the system can promptly issue an early warning interlock to prevent the electrolytic cell from being powered on and started, thereby reducing the risk of a short circuit and fire caused by liquid leakage. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the structure of an embodiment of the first conductive element and the second conductive element provided in this application;

[0025] Figure 2 A schematic diagram of another embodiment of the first conductive element and the second conductive element provided in this application;

[0026] Figure 3 A schematic diagram of the structure of yet another embodiment of the first conductive element and the second conductive element provided in this application;

[0027] Figure 4 A cross-sectional view of an embodiment of the detection device provided in this application installed on a tie rod or electrode plate;

[0028] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0029] Figure 6 for Figure 4 Another cross-sectional view of the detection device installed on the tie rod or electrode plate;

[0030] Figure 7 for Figure 6 A magnified view of a section at point B in the middle;

[0031] Figure 8 This is a schematic diagram of the structure where the detection device is installed on the tie rod;

[0032] Figure 9 This is a schematic diagram of the detection device mounted on the electrode plate.

[0033] Explanation of icon numbers:

[0034] 10. Detection device; 20. Pull rod; 30. Electrode plate; 100. First conductive component; 200. Second conductive component; 300. Insulating filler layer; 400. Clearance space; 110. First conductive section; 120. Connecting rod; 210. Second conductive section; 220. Connecting ring.

[0035] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0037] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0038] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0039] This application proposes a device 10 for detecting leaking liquid in an electrolytic cell.

[0040] Please see Figure 1 , Figure 4 and Figure 5 In one embodiment of this application, the detection device 10 includes an insulating filler layer 300, a first conductive element 100, and a second conductive element 200. The second conductive element 200 is disposed around the electrolytic cell, and a clearance space 400 is provided on the second conductive element 200 for the leakage liquid to pass through. The first conductive element 100 is spaced apart from the second conductive element 200 by the insulating filler layer 300, and a leakage liquid through hole is provided on the insulating filler layer 300 communicating with the clearance space 400. The leakage liquid through hole is used to allow liquid to flow from the clearance space 400 to the first conductive element 100. The first conductive element 100 is connected to the second conductive element 200 through the leakage liquid.

[0041] Specifically, the first conductive element 100 and the second conductive element 200 are used to conduct current. By using an insulating filler layer 300 to separate the first conductive element 100 and the second conductive element 200, electrical isolation is achieved between them when there is no leakage in the electrolytic cell, and no circuit is formed between them. However, when leakage occurs in the electrolytic cell, and the liquid flows onto the detection device 10, the liquid, as a conductive medium, can flow through the leakage liquid through-holes in the insulating filler layer 300 and form a current path between the first conductive element 100 and the second conductive element 200, thus enabling circuit conduction between the first conductive element 100 and the second conductive element 200, thereby detecting leakage in the electrolytic cell by the detection device 10. Therefore, the insulating filler layer 300 can distinguish between the normal state of the first conductive element 100 and the second conductive element 200 under normal isolation and the state of leakage when current is conducted between the first conductive element 100 and the second conductive element 200.

[0042] The second conductive element 200 has a clearance space 400 communicating with the leakage liquid through the hole, so that when the electrolytic cell leaks liquid, the liquid can flow from the second conductive element 200 to the first conductive element 100 through the clearance space 400, ensuring that the flow path of the liquid between the first conductive element 100 and the second conductive element 200 is not blocked, so that the first conductive element 100 and the second conductive element 200 can conduct the circuit through the leaked liquid.

[0043] When liquid leaks from the electrolytic cell during operation, the first conductive element 100 and the second conductive element 200 will form a path at the point where the liquid has entered, allowing the system to promptly issue a warning and shut down based on the leak signal detected by the detection device 10. Alternatively, if the electrolytic cell leaks liquid due to cooling and contraction during shutdown or standby, the first conductive element 100 and the second conductive element 200 will also form a path at the point where the liquid has entered. The system can then promptly issue a warning and interlock based on the detected leak signal, preventing the electrolytic cell from being powered on and thus preventing a short circuit and fire caused by the liquid leak.

[0044] The technical solution of this application installs the detection device 10 in the electrolytic cell. When the electrolytic cell leaks, the liquid can flow in the leakage liquid through-hole of the immersed insulating filler layer 300, so that the first conductive element 100 and the second conductive element 200 form a passage. Thus, the detection device 10 can monitor the leakage of liquid in the electrolytic cell in real time. When liquid leakage is detected, the system can immediately issue an early warning and control the electrolytic cell to stop in time, or the system can promptly issue an early warning interlock to prevent the electrolytic cell from being powered on and started, thereby reducing the risk of a short circuit and fire caused by liquid leakage.

[0045] In one implementation, please refer to Figures 4 to 7 At least one of the first conductive element 100 and the second conductive element 200 is embedded in the insulating filler layer 300.

[0046] At least one of the first conductive element 100 and the second conductive element 200 is embedded in the insulating filler layer 300 to ensure that the embedded conductive element can be firmly fixed within the insulating filler layer 300, reducing the risk of positional displacement or damage due to vibration or other mechanical forces. Completely or partially enclosing the first conductive element 100 and / or the second conductive element 200 by the insulating filler layer 300 also prevents the first conductive element 100 and / or the second conductive element 200 from being exposed, adding an extra layer of protection and reducing the risk of short circuits and other electrical faults.

[0047] In other embodiments, the insulating filler layer 300 may also be sandwiched between the first conductive element 100 and the second conductive element 200.

[0048] In one implementation, please refer to Figures 4 to 7 Both the first conductive element 100 and the second conductive element 200 are embedded in the insulating filler layer 300.

[0049] The first conductive element 100 and the second conductive element 200 are both embedded in the insulating filler layer 300, ensuring electrical isolation between them. This greatly avoids the risk of short circuits caused by external factors and improves the reliability of the detection device 10. It also increases the stability and durability of the overall structure of the detection device 10 and reduces the impact of mechanical vibration or other physical shocks on the first conductive element 100 and the second conductive element 200. Furthermore, it allows for a greater number of leakage liquid through-holes to connect with the first conductive element 100 and the second conductive element 200, thereby increasing the probability of liquid conduction between the liquid and the first conductive element 100 and the second conductive element 200, and improving the sensitivity of the detection capability of the detection device 10.

[0050] In other embodiments, only the first conductive element 100 may be embedded in the insulating filler layer 300, and the second conductive element 200 may be disposed on the outer surface of the insulating filler layer 300; or only the second conductive element 200 may be embedded in the insulating filler layer 300, and the first conductive element 100 may be disposed on the outer surface of the insulating filler layer 300.

[0051] In one implementation, please refer to Figure 1 and Figure 3 The detection device 10 has a cylindrical structure that extends through both ends. One of the first conductive element 100 and the second conductive element 200 is spaced apart from the other. The insulating filler layer 300 is cylindrical.

[0052] The detection device 10 has a cylindrical structure extending through both ends. Both the first conductive element 100 and the second conductive element 200 are cylindrical, and the space between them also forms a cylindrical space. At least a portion of the insulating filler layer 300 is disposed within this cylindrical space, thus the insulating filler layer 300 is also cylindrical. The cylindrical structure allows the detection device 10 to conform to the shape of the electrolytic cell, facilitating its installation on the outer periphery of the pull rod 20 or the electrode plate 30. Furthermore, the cylindrical structure of the detection device 10 increases the leakage receiving area, improving the detection success rate. One of the first conductive element 100 and the second conductive element 200 is spaced apart from the other, maintaining electrical isolation through the spacing to maximize space utilization while allowing liquid to flow through the area between the first conductive element 100 and the second conductive element 200, thus forming a current path.

[0053] In one implementation, please refer to Figure 1 , Figure 4 and Figure 9 The detection device 10 is installed on the outer periphery of the electrode plate 30. The first conductive element 100 is sleeved outside the second conductive element 200. When the liquid leaks, the liquid can enter the insulating filler layer 300 between the first conductive element 100 and the second conductive element 200 through the clearance space 400 on the inner second conductive element 200, and then contact the first conductive element 100 located on the outer layer through the leakage liquid through hole, so that the first conductive element 100 and the second conductive element 200 form a current path.

[0054] In another implementation, please refer to Figure 3 , Figure 4 and Figure 8 The detection device 10 is mounted on the pull rod 20, mainly located on at least one pull rod 20 near the bottom of the electrolytic cell. The second conductive element 200 is sleeved outside the first conductive element 100. When liquid leaks, the liquid can enter the insulating filler layer 300 between the first conductive element 100 and the second conductive element 200 through the clearance space 400 on the outer second conductive element 200, and then contact the inner first conductive element 100 through the leaked liquid through hole, so that the first conductive element 100 and the second conductive element 200 form a passage.

[0055] In other embodiments, the detection device 10 has a plate-like structure and is placed directly or via a mounting bracket below the electrolytic cell.

[0056] In one implementation, please refer to Figure 1The first conductive element 100 includes a plurality of first conductive segments 110, and the second conductive element 200 includes a plurality of second conductive segments 210. The extension direction of the first conductive segments 110 is different from the extension direction of the second conductive segments 210.

[0057] The different extension directions of the first conductive segment 110 and the second conductive segment 210 create a staggered network structure between the first conductive element 100 and the second conductive element 200 in space. This optimizes the current path through the liquid, enabling conduction between the first conductive element 100 and the second conductive element 200 via a shorter flow path, thus improving detection efficiency. The multi-segment design of the first conductive element 100 and the second conductive element 200 increases the contact area between them and the liquid, enhancing the sensitivity and efficiency of the detection device 10. When one conductive segment malfunctions, the others can continue to function, and the malfunctioning segment can be replaced individually without replacing the entire conductive element, reducing maintenance costs. Furthermore, the direction and layout of each conductive segment can be flexibly adjusted according to actual needs to adapt to different application scenarios or process requirements. For example, the spacing between the conductive segments can be adjusted based on fluid dynamics characteristics.

[0058] In one embodiment, at least the first conductive segment 110 is spiral or annular, and a plurality of first conductive segments 110 are distributed along the axial direction of the detection device 10, with the clearance space 400 being the interval between the first conductive segments 110 of two adjacent layers.

[0059] Please see Figure 1 At least the first conductive segment 110 is annular; please refer to Figure 2 At least the first conductive segment 110 is spiral-shaped. Designing the first conductive segment 110 as a spiral or ring shape, with the first conductive segment 110 wound around the central axis of the detection device 10 or forming concentric circles, increases the effective length of the first conductive element 100 without significantly increasing the overall size of the detection device 10, thereby increasing the contact opportunity between the first conductive element 100 and the liquid and enhancing current transmission efficiency. Multiple first conductive segments 110 are arranged sequentially along the axial direction of the detection device 10, allowing current to flow from one end to the other while ensuring sufficient contact area with the liquid at each location for conduction. The spiral or ring structure provides additional mechanical strength, reducing the risk of damage due to vibration or other external forces. The gap between adjacent layers of first conductive segments 110 serves as a clearance space 400, acting as a channel for liquid flow. Liquid can pass through the clearance space 400 from the first conductive element 100 into the insulating filler layer 300 between the first conductive element 100 and the second conductive element 200, and then flow to the second conductive element 200.

[0060] In one implementation, please refer to Figure 1Multiple first conductive segments 110 are connected by connecting rods 120.

[0061] The connecting rod 120 is used to connect multiple annular first conductive segments 110, which not only helps to enhance the mechanical strength and stability of the entire structure, but also prevents deformation or displacement of the first conductive segments 110 due to vibration or other external forces. The multiple first conductive segments 110 are electrically connected to each other via the connecting rod 120. A power source is electrically connected to one of the first conductive segments 110. When other first conductive segments 110 come into contact with liquid, they can be electrically connected to other first conductive segments 110 via the connecting rod 120, thereby connecting to the power source and enabling circuit conduction between the first conductive element 100 and the second conductive element 200. It is worth noting that... (See also...) Figure 2 The spiral-shaped first conductive segments 110 do not need to be connected by connecting rods 120; multiple spiral-shaped first conductive segments 110 can be connected end to end in sequence.

[0062] In other embodiments, the connecting rods 120 may not be provided between the multiple annular first conductive segments 110, and each first conductive segment 110 may be electrically connected to the power supply via a cable or other conductive terminal.

[0063] In one implementation, please refer to Figure 1 The second conductive segment 210 extends along the axial direction of the detection device 10 and is spaced apart along the circumferential direction of the detection device 10, forming a clearance space 400 between two adjacent second conductive segments 210.

[0064] Each second conductive segment 210 extends along the axial direction of the detection device 10, ensuring that current can be conducted along the entire axial direction of the detection device 10. This increases the effective length of the current path and guarantees sufficient contact area with the liquid at each location to achieve conductivity. Multiple second conductive segments 210 are evenly distributed along the circumference of the detection device 10, forming a cylindrical structure. The clearance space 400 between adjacent second conductive segments 210 can serve as a channel for liquid flow. Liquid can pass through the clearance space 400 from the second conductive element 200 into the insulating filler layer 300 between the first conductive element 100 and the second conductive element 200, and then flow towards the first conductive element 100.

[0065] In other embodiments, the second conductive segment 210 may also be spiral or annular, and multiple second conductive segments 210 are distributed along the axial direction of the detection device 10, with the clearance space 400 being the interval between the second conductive segments 210 of two adjacent layers.

[0066] In one implementation, please refer to Figure 1The first conductive element 100 is sleeved around the outer periphery of the second conductive element 200, the first conductive segment 110 is annular, and the second conductive segment 210 extends along the axial direction of the detection device 10. In another embodiment, please refer to... Figure 3 The second conductive element 200 is sleeved on the outer periphery of the first conductive element 100, the first conductive segment 110 is spiral-shaped, and the second conductive segment 210 extends along the axial direction of the detection device 10. In another embodiment, the first conductive element 100 is sleeved on the outer periphery of the second conductive element 200, and both the first conductive segment 110 and the second conductive segment 210 are spiral-shaped, with the spiral directions of the first conductive segment 110 and the second conductive segment 210 being opposite.

[0067] In one implementation, please refer to Figure 1 Multiple second conductive segments 210 are connected by a connecting ring 220.

[0068] The connecting ring 220 is used to connect multiple rod-shaped second conductive segments 210 together, which not only helps to enhance the mechanical strength and stability of the entire structure, but also prevents deformation or displacement of the second conductive segments 210 due to vibration or other external forces. The multiple second conductive segments 210 are electrically connected to each other via the connecting ring 220, and the power supply is also electrically connected to the connecting ring 220. When one of the second conductive segments 210 comes into contact with the liquid, that second conductive segment 210 can be connected to the power supply through the connecting ring 220, thus achieving circuit conduction between the first conductive element 100 and the second conductive element 200.

[0069] In other embodiments, the connecting ring 220 may not be provided between the multiple second conductive segments 210, and each second conductive segment 210 may be electrically connected to the power supply through a cable or other conductive terminal.

[0070] In one implementation, please refer to Figure 1 and Figure 6 Multiple first conductive segments 110 and / or multiple second conductive segments 210 are uniformly distributed in their distribution direction.

[0071] The first conductive segments 110 are uniformly distributed along the axial direction of the detection device 10, and the intervals between each first conductive segment 110 are equal, which helps the liquid to contact each first conductive segment 110 more evenly. The second conductive segments 210 are uniformly distributed along the circumference of the detection device 10, and the second conductive segments 210 are arranged at equal intervals along the circumference of the detection device 10. When the first conductive segments 110 are connected by connecting rods 120 and the second conductive segments 210 are connected by connecting rings 220, the uniform distribution design can further enhance the stability and consistency of the entire structure, while maintaining good electrical isolation and hydrodynamic characteristics.

[0072] In other embodiments, the plurality of first conductive segments 110 and / or the plurality of second conductive segments 210 may also be non-uniformly distributed in their distribution direction. Under the influence of gravity, the liquid mainly leaks from the bottom side of the electrolytic cell. The number of first conductive segments 110 and / or second conductive segments 210 near the bottom side of the electrolytic cell is larger, and their arrangement density is higher. The number of first conductive segments 110 and / or second conductive segments 210 near the top side of the electrolytic cell is smaller, and their arrangement density is lower.

[0073] In one implementation, please refer to Figure 1 and Figure 6 The two ends of the first conductive element 100 and the two ends of the second conductive element 200 are respectively provided.

[0074] Please see Figure 6 This can be because the axial lengths of the first conductive element 100 and the second conductive element 200 are the same, and the two ends of the first conductive element 100 and the two ends of the second conductive element 200 are aligned respectively; please refer to Figure 1 Alternatively, the axial lengths of the first conductive element 100 and the second conductive element 200 can be approximately the same, with at least one end of the second conductive element 200 slightly protruding from the first conductive element 100 in the axial direction. By having the two ends of the first conductive element 100 and the two ends of the second conductive element 200 respectively correspondingly positioned, liquid passing through the clearance space 400 at any location on the second conductive element 200 can flow to the corresponding location on the first conductive element 100. This ensures that both the first conductive element 100 and the second conductive element 200 can effectively detect leakage along their entire length, thereby improving the accuracy of the detection device 10. Furthermore, designing the first conductive element 100 and the second conductive element 200 to have the same or similar lengths simplifies the manufacturing process, reduces production costs, and makes alignment and fixation easier during installation, reducing assembly problems caused by dimensional differences.

[0075] In one embodiment, the insulating filler layer 300 is configured as a porous material.

[0076] Porous materials possess numerous tiny leakage liquid vias, which provide flow paths for the liquid, allowing current to be conducted between the first conductive element 100 and the second conductive element 200. Uniformly distributed leakage liquid vias contribute to the formation of stable current paths, improving the timeliness and accuracy of detection by the detection device 10. Different types of porous materials (such as ceramics, polymer foams, glass fibers, etc.) can be selected, and the leakage liquid porosity and pore size can be adjusted to meet specific requirements.

[0077] In another embodiment, the insulating filler layer 300 is configured as a rigid material and has a plurality of interconnected liquid passage holes.

[0078] Using a rigid material as the insulating filler layer 300 provides excellent mechanical strength and stability, ensuring electrical isolation between the first conductive element 100 and the second conductive element 200, while also resisting external physical shocks and vibrations. The choice of rigid material can be determined according to specific application requirements, such as ceramics, fiberglass, or certain high-performance plastics. Multiple interconnected liquid passages are formed in the insulating filler layer 300. These passages, acting as leakage liquid through-holes in the insulating filler layer 300, allow liquid to flow freely, ensuring smooth liquid flow between the first conductive element 100 and the second conductive element 200, thereby forming an effective current conduction path.

[0079] In one implementation, please refer to Figure 1 The detection device 10 is also provided with a detection circuit that connects the first conductive element 100 and the second conductive element 200. The detection circuit is provided with a signal switch, which is used to obtain the signal that the first conductive element 100 and the second conductive element 200 are conducting.

[0080] The detection circuit connects the first conductive element 100 and the second conductive element 200 to form a complete current path. Through the detection circuit, the current flowing between the first conductive element 100 and the second conductive element 200 can be monitored, thereby obtaining information about liquid leakage. The signal switch is used to obtain the conduction signal between the first conductive element 100 and the second conductive element 200. When liquid exists as a conductive medium between the first conductive element 100 and the second conductive element 200, the signal switch can detect the presence of current in the circuit and determine the liquid leakage situation. This information is then fed back to the system so that the system can immediately issue an early warning and promptly control the electrolytic cell to shut down, or the system can promptly issue an early warning interlock to prevent the electrolytic cell from being powered on, thereby reducing the risk of a short circuit and fire caused by liquid leakage.

[0081] This application also proposes an electrolytic cell, which includes an end pressure plate, an electrode plate 30, a pull rod 20, and a detection device 10. The specific structure of the detection device 10 is as described in the above embodiments. Since this electrolytic cell adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0082] The electrode 30 is sandwiched between two oppositely arranged end plates, and the two end plates are tightened by multiple tie rods 20. At least one tie rod 20 or at least one electrode 30 is equipped with a detection device 10 on its outer periphery.

[0083] Please see Figure 8The detection device 10 can be mounted on the pull rod 20, mainly located on at least one pull rod 20 near the bottom of the electrolytic cell. When liquid leaks, the liquid can enter the insulating filler layer 300 between the first conductive element 100 and the second conductive element 200 through the clearance space 400 on the outer second conductive element 200, and then contact the inner first conductive element 100 through the leaking liquid through-hole, so that the first conductive element 100 and the second conductive element 200 form a passage. The signal switch detects the liquid leak signal and feeds it back to the system.

[0084] Please see Figure 9 The detection device 10 can also be installed on the outer periphery of the electrode plate 30, with each detection device 10 correspondingly sleeved on the outer periphery of one electrode plate 30 to prevent short circuits between multiple electrode plates 30. When liquid leaks, the liquid can enter the insulating filler layer 300 between the first conductive element 100 and the second conductive element 200 through the clearance space 400 on the inner second conductive element 200, and then contact the first conductive element 100 located on the outer layer through the leaking liquid through hole, so that the first conductive element 100 and the second conductive element 200 form a circuit. The signal switch detects the liquid leak signal and feeds it back to the system.

[0085] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A device for detecting leaking liquid in an electrolytic cell, characterized in that, include: A second conductive element (200) is disposed around the periphery of the electrolytic cell, and the second conductive element (200) is provided with a clearance space (400) for the leakage liquid to pass through; A first conductive element (100) is provided at intervals between an insulating filler layer (300) and the second conductive element (200). The insulating filler layer (300) is provided with a leakage liquid through hole communicating with the clearance space (400). The leakage liquid through hole is used to allow the liquid to flow from the clearance space (400) to the first conductive element (100). The first conductive element (100) is connected to the second conductive element (200) through the leaked liquid.

2. The detection device as described in claim 1, characterized in that, At least one of the first conductive element (100) and the second conductive element (200) is embedded in the insulating filler layer (300).

3. The detection device as described in claim 2, characterized in that, Both the first conductive element (100) and the second conductive element (200) are embedded in the insulating filler layer (300).

4. The detection device as described in claim 1, characterized in that, The detection device (10) has a cylindrical structure that extends through both ends. One of the first conductive element (100) and the second conductive element (200) is spaced outside the other. The insulating filler layer (300) is cylindrical.

5. The detection device as described in claim 4, characterized in that, The first conductive element (100) includes a plurality of first conductive segments (110), and the second conductive element (200) includes a plurality of second conductive segments (210). The extension direction of the first conductive segments (110) is different from the extension direction of the second conductive segments (210).

6. The detection device as described in claim 5, characterized in that, At least the first conductive segment (110) is spiral or annular, and a plurality of the first conductive segments (110) are distributed along the axial direction of the detection device (10), and the clearance space (400) is the interval between the first conductive segments (110) of two adjacent layers.

7. The detection device as described in claim 6, characterized in that, The plurality of the first conductive segments (110) are connected by connecting rods (120).

8. The detection device as described in claim 5, characterized in that, The second conductive segment (210) extends along the axial direction of the detection device (10) and is spaced circumferentially along the detection device (10), forming the clearance space (400) between two adjacent second conductive segments (210).

9. The detection device as described in claim 5, characterized in that, Multiple second conductive segments (210) are connected by a connecting ring (220).

10. The detection device as described in claim 5, characterized in that, The plurality of first conductive segments (110) and / or the plurality of second conductive segments (210) are uniformly distributed in their distribution direction.

11. The detection device as described in claim 4, characterized in that, The two ends of the first conductive element (100) and the two ends of the second conductive element (200) are respectively provided.

12. The detection device as described in claim 1, characterized in that, The insulating filler layer (300) is configured as a porous material, or the insulating filler layer (300) is configured as a rigid material and has multiple interconnected liquid passage holes.

13. The detection device as described in claim 1, characterized in that, The detection device (10) is further provided with a detection circuit connecting the first conductive element (100) and the second conductive element (200). The detection circuit is provided with a signal switch, which is used to obtain the signal that the first conductive element (100) and the second conductive element (200) are conducting.

14. An electrolytic cell, characterized in that, The device includes an end plate, an electrode plate (30), a pull rod (20), and a detection device (10) as described in any one of claims 1 to 13, wherein the electrode plate (30) is sandwiched between two oppositely arranged end plates, the two end plates are tightened together by a plurality of pull rods (20), and the detection device (10) is mounted on the outer periphery of at least one pull rod (20) or at least one electrode plate (30).

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