Alkali leakage detection device between polar plates of electrolytic cell
By installing cotton insulating sheets and a PLC control module between the electrodes of the electrolytic cell, rapid detection and alarm of alkali leakage were achieved, solving the safety hazards of the electrolytic cell and improving safety and maintenance efficiency.
Patent Information
- Application Number
- CN202520248699.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-17
AI Technical Summary
In the existing technology, the leakage of alkaline solution between the electrodes of the electrolytic cell cannot be detected in time, which leads to a large current passing through the electrodes, which may break down the diaphragm and cause a safety accident.
Design a device for detecting alkali leakage between electrodes in an electrolytic cell. The device uses cotton insulating sheets and a PLC control module to detect the outflow of alkali solution. It triggers an alarm and stops the circuit through changes in electrical signals to ensure safety.
It enables rapid detection of alkali leakage, reduces the probability of high current passing through the electrode plates, improves production safety, and simplifies the maintenance process.
Smart Images
Figure CN223678727U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of liquid leakage detection, and particularly relates to an electrolytic tank inter-plate alkali leakage detection device. BACKGROUND
[0002] The alkali electrolysis hydrogen production device mainly comprises an electrolytic tank, a power supply and a gas treatment system. The electrolytic tank contains an anode and a cathode immersed in an alkaline solution (such as KOH or NaOH), and the water is electrolyzed to produce hydrogen and oxygen by an external power supply. The device design needs to consider the use of corrosion-resistant materials to cope with the strong alkali environment. The gas treatment system is responsible for cooling, drying and compressing the generated hydrogen gas for storage and transportation.
[0003] During the operation of the electrolytic tank, if the alkali solution between the plates leaks out, it will cause the adjacent two plates to conduct, resulting in a large current passing through the plates, causing the diaphragm to break down. If it cannot be found and stopped in the first time, the continuous leakage of the alkali solution will cause a major safety accident, so a new type of electrolytic tank inter-plate alkali leakage detection device is needed. UTILITY MODEL CONTENT
[0004] To solve the above problems, the utility model discloses an electrolytic tank inter-plate alkali leakage detection device.
[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:
[0006] An electrolytic tank inter-plate alkali leakage detection device, comprising an electrolytic tank, a plurality of parallel plates are arranged in the electrolytic tank, and an insulating plate is arranged between adjacent two plates, an insulating guide device is arranged below the connection between each plate and insulating plate, the bottoms of two adjacent guide devices are connected to a cotton insulating sheet, and the two guide devices inserted into the same cotton insulating sheet are in contact, a plurality of cotton insulating sheets are connected to a PLC control module, and the PLC control module is connected to a reset button and an alarm device.
[0007] As a preferred technical scheme of the utility model, the two guide devices in the same group are connected to a cotton insulating sheet at the bottom of the V-shaped structure.
[0008] As a preferred technical scheme of the utility model, the two output terminals of the cotton insulating sheet are connected to the DI input module of the PLC control module.
[0009] As a preferred technical scheme of the utility model, the reset button is connected to the DI input module of the PLC control module.
[0010] As a preferred technical scheme of the utility model, the alarm device is connected to the DO output module of the PLC control module.
[0011] As a preferred technical scheme of the utility model, the alarm device is a buzzer.
[0012] The utility model discloses the beneficial effect is:
[0013] I, when the electrolytic cell due to the fault causes lye to flow from the interelectrode drop, due to the gravity effect lye gathers to the cotton insulating piece along the guide device of having placed beforehand, and lye as electrolyte makes the cotton insulating piece become a conductor, thereby will make the electric signal of cotton insulating piece change, at this time, the PLC control module gathers the change of electric signal, and sends the alarm signal to the buzzer, thereby interlocking parking, benefits to the quick detection of electrolytic cell lye leakage, reduces the probability that the big current passes through the polar plate and leads to the diaphragm breakdown, improves the safety of production;
[0014] II, due to being provided with a plurality of linear uniform arrangement and numbered cotton insulating pieces, can gather the number of the cotton insulating piece of electric signal change through the PLC control module and quickly confirm the leakage position of electrolytic cell, benefits from the numbering design of cotton insulating piece, is convenient for finding the leakage position, simplifies the process of overhauling, improves the overhauling speed. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is the whole structure schematic view of the utility model embodiment;
[0016] Fig. 2 It is the structure schematic view of the guide device and cotton insulating piece of the utility model embodiment.
[0017] LIST OF FIGURES
[0018] 1, electrolytic cell;2, polar plate;3, insulating plate;4, guide device;5, cotton insulating piece. DETAILED DESCRIPTION
[0019] The utility model is further illustrated below in combination with the drawings and specific embodiments, and it should be understood that the following specific embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model.
[0020] Please refer to Figs. 1-2The utility model provides an electrolytic cell inter -plate alkali leakage detection device, including electrolytic cell 1, electrolytic cell 1 is the part of alkali electrolysis hydrogen production system. The electrolytic cell 1 is provided with a plurality of mutually parallel polar plate 2, and the adjacent two polar plate 2 are provided with insulating plate 3, make the adjacent two polar plate 2 not contact, and polar plate 2 and insulating plate 3 are alternately arranged. The lower of every polar plate 2 and insulating plate 3 junction is provided with insulating guide device 4. The bottom of two two groups of guide device 4 is commonly connected with cotton insulating sheet 5, and the two guide device 4 of inserting the same cotton insulating sheet 5 contact. A plurality of cotton insulating sheet 5 are commonly signal connected with PLC control module, and PLC control module signal is connected with reset button and alarm device.
[0021] The two guide device 4 of same group commonly constitute V shape, and the bottom of V shape is connected with cotton insulating sheet 5. Guide device 4 is made of anticorrosive engineering material (insulating material), and the two guide device 4 of same group constitute V shape, and the alkali solution can flow into cotton insulating sheet 5 smoothly.
[0022] The both sides output terminal of cotton insulating sheet 5 is connected to the DI input module of PLC control module. After absorbing the alkali solution, the cotton insulating sheet 5 becomes a conductor, and the electrical signal received by the PLC control module changes from normally open signal to normally closed signal.
[0023] The alarm device is connected to the DO output module of the PLC control module. The alarm device can be a buzzer, which is used to remind the staff of the alkali leakage and facilitate timely processing.
[0024] The reset button is connected to the DI input module of the PLC control module, which is used to reset the alarm device such as a buzzer that is continuously alarming.
[0025] Working principle:
[0026] When the electrolytic cell 1 leaks alkali due to failure, the guide device 4 catches the falling alkali. Due to the force of gravity, the alkali collects in the cotton insulating sheet 5 along the guide device 4 placed in advance. As the cotton insulating sheet 5 continuously absorbs the alkali, the alkali as an electrolyte makes the cotton insulating sheet 5 become a conductor, which changes the electrical signal of the cotton insulating sheet 5 (from normally open signal to normally closed signal). At this time, the PLC control module collects the change of the electrical signal through the DI input module, and after internal logic processing, it sends an alarm signal to the buzzer through the DO output module, thereby chain stopping, avoiding the aggregation of the alkali flowing out of the gap, causing the adjacent two polar plates 2 to be connected, and damaging the electrolytic cell 1 when a large current passes through, which may even cause greater safety hazards.
[0027] Due to the multiple linear uniform arrangement and numbered cotton insulating sheets 5, the number of the cotton insulating sheet 5 with the change of the electric signal can be collected by the PLC control module to quickly confirm the liquid leakage position of the electrolytic cell 1.
[0028] It should be noted that the above only illustrates the technical thought of the present application, and cannot limit the protection scope of the present application. For ordinary skilled in the art, without departing from the principle of the present application, some improvements and refinements can be made, and these improvements and refinements fall within the protection scope of the present application.
Claims
1. An apparatus for detecting inter-polar leakage of alkali in an electrolytic cell, comprising an electrolytic cell (1), characterized in that, The electrolytic cell (1) is provided with a plurality of mutually parallel polar plates (2), and an insulating plate (3) is arranged between two adjacent polar plates (2), an insulating guide device (4) is arranged below the connection position of each polar plate (2) and insulating plate (3), the bottoms of two adjacent guide devices (4) are connected with a cotton insulating sheet (5), the two guide devices (4) inserted into the same cotton insulating sheet (5) are in contact, a plurality of cotton insulating sheets (5) are connected with a PLC control module, and the PLC control module is connected with a reset button and an alarm device.
2. The apparatus for detecting the inter-polar plate alkali leakage of an electrolyzer according to claim 1, characterized in that, The two guide devices (4) in the same group are jointly arranged in a V shape, and the bottom of the V shape is connected with the cotton insulating sheet (5).
3. The apparatus for detecting the leakage of alkali between the electrode plates of an electrolytic cell according to claim 1, characterized by The two side output terminals of the cotton insulating sheet (5) are connected to the DI input module of the PLC control module.
4. The apparatus for detecting the inter-polar plate alkali leakage of an electrolyzer according to claim 1, characterized in that, The reset button is connected to the DI input module of the PLC control module.
5. The apparatus for detecting the inter-polar plate alkali leakage of an electrolytic cell according to claim 1, characterized in that, The alarm device is connected to the DO output module of the PLC control module.
6. The apparatus for detecting inter-polar plate leakage of an electrolyzer of claim 5, wherein, The alarm device is a buzzer.