Electrode enhanced life detection device and method

Abstract

The present application proposes an enhanced life detection device and method for an electrode, which relates to the field of electrochemical technology. The device includes: an electrolytic reaction tank, an electrode sample to be tested, an inert cathode and a detection unit, wherein: the electrode sample to be tested and the inert cathode are located in the electrolytic reaction tank, and the electrode sample to be tested is prepared based on a filamentary electrode to be tested; the detection unit is connected to the electrode sample to be tested and the inert cathode respectively, and the detection unit is used to provide a constant current to the electrode sample to be tested and the inert cathode to form an electrolysis process in the electrolytic reaction tank; the detection unit is also used to detect the voltage value of the electrolysis process, and determine the enhanced life of the electrode sample to be tested based on the voltage value. Since the electrode sample to be tested in this scheme is prepared based on a filamentary electrode to be tested, the material consumption can be reduced compared to the electrode test piece, and since the area of ​​the electrode sample to be tested is reduced, the energy consumption can be reduced when the test current density remains unchanged.

Description

Technical Field

[0001] The present application relates to the field of electrochemical technology, and in particular to a device and method for detecting the enhanced life of an electrode. Background Art

[0002] In the electrochemical water treatment process, the service life of the anode plate is one of the important factors affecting the cost of water treatment. The water quality of the water treatment object is complex, which may significantly shorten the electrode life, so it is necessary to test and predict the electrode life. However, since the electrode life is usually long, in order to shorten the test time, it is usually necessary to adopt an enhanced life test method, that is, to change the experimental conditions to accelerate the failure of the electrode, and test the enhanced life of the electrode to estimate the actual service life of the electrode in different wastewaters, so as to avoid the increase in treatment costs caused by the rapid corrosion failure of the anode.

[0003] However, in the related art, the test of the anode plate enhanced life has the problem of serious energy waste and electrode material consumption. Summary of the invention

[0004] In order to solve the above problems, the present application provides an enhanced life detection device and method for an electrode.

[0005] According to a first aspect of the present application, there is provided an enhanced life detection device for an electrode, comprising: an electrolytic reaction cell, an electrode sample to be tested, an inert cathode and a detection unit, wherein:

[0006] The electrode sample to be tested and the inert cathode are located in the electrolytic reaction tank, and the electrode sample to be tested is prepared based on a filamentary electrode to be tested;

[0007] The detection unit is connected to the electrode sample to be tested and the inert cathode respectively, and is used to provide a constant current to the electrode sample to be tested and the inert cathode so that an electrolysis process is formed in the electrolysis reaction tank; the detection unit is also used to detect the voltage value of the electrolysis process, and determine the strengthening life of the electrode sample to be tested based on the voltage value.

[0008] In some embodiments of the present application, the electrode sample to be tested includes a filamentary electrode to be tested, a wire and an epoxy resin layer, wherein:

[0009] One end of the wire-shaped electrode to be tested is welded to one end of the wire, a part of the wire-shaped electrode to be tested and a part of the wire are both wrapped by the epoxy resin layer, and another part of the wire-shaped electrode to be tested and another part of the wire are not wrapped by the epoxy resin layer; the epoxy resin layer is formed based on the epoxy resin filled in the gap between the wire and the pointed plastic tube after welding;

[0010] Wherein, the detection unit is connected to the wire in the electrode sample to be tested.

[0011] As a possible implementation manner, the device further includes:

[0012] The constant temperature water bath unit is used to provide a preset constant temperature environment for the electrolytic reaction tank.

[0013] In some embodiments of the present application, the electrolytic reaction cell is equipped with a sealing cover, and the sealing cover has a gas outlet.

[0014] As a possible implementation manner, at least two slots are reserved on the sealing cover, and the at least two slots are used to fix the electrode sample to be tested and the inert cathode respectively.

[0015] In some embodiments of the present application, the detection unit is specifically used for:

[0016] Providing a constant current to the electrode sample to be tested and the inert cathode, and recording the start time of the test;

[0017] Detecting the voltage value of the electrolysis process in real time, and comparing the voltage value with a preset voltage threshold;

[0018] When the voltage value is greater than or equal to the preset voltage threshold, stop providing the constant current, stop detecting the voltage value, and record the detection end time;

[0019] The difference between the detection end time and the detection start time is used as the strengthening life of the electrode sample to be tested.

[0020] In some embodiments of the present application, there are multiple electrode samples to be tested, there are multiple inert cathodes, each electrode to be tested corresponds to one inert cathode, and each electrode to be tested and the corresponding inert cathode form a first electrode group; the detection unit includes multiple test channels, wherein:

[0021] Each of the first electrode groups is connected to any one of the multiple test channels, and each of the test channels is connected to at most one first electrode group; each of the test channels is used to provide a constant current to the first electrode group connected thereto, and detect the voltage value of the corresponding electrolysis process, and determine the enhanced life of the corresponding electrode sample to be tested according to the voltage value of the corresponding electrolysis process.

[0022] In some other embodiments of the present application, there are multiple electrode samples to be tested, the multiple electrodes to be tested share an inert cathode, and each of the electrodes to be tested forms a second electrode group with the inert cathode; the detection unit includes multiple test channels, wherein:

[0023] Each of the second electrode groups is connected to any one of the multiple test channels, and each of the test channels is connected to at most one second electrode group; each of the test channels is used to provide a constant current to the second electrode group connected thereto, and detect the voltage value of the corresponding electrolysis process, and determine the enhanced life of the corresponding electrode sample to be tested according to the voltage value of the corresponding electrolysis process.

[0024] According to a second aspect of the present application, a method for enhancing life detection of an electrode is provided. The method uses the device for enhancing life detection of an electrode according to the first aspect, comprising:

[0025] Providing a constant current to the electrode sample to be tested and the inert cathode to form an electrolysis process in the electrolysis reaction tank;

[0026] Detecting the voltage value of the electrolysis process;

[0027] The strengthening life of the electrode sample to be tested is determined according to the voltage value.

[0028] In some embodiments of the present application, determining the strengthening life of the electrode sample to be tested according to the voltage value includes:

[0029] When a constant current is supplied to the electrode sample to be tested and the inert cathode, recording the detection start time;

[0030] comparing the voltage value with a preset voltage threshold;

[0031] When the voltage value is greater than the preset voltage threshold, stop providing the constant current, stop detecting the voltage value, and record the detection end time;

[0032] The difference between the detection end time and the detection start time is used as the strengthening life of the electrode sample to be tested.

[0033] In some embodiments of the present application, the step of providing a constant current to the electrode sample to be tested and the inert cathode to form an electrolysis process in the electrolysis reaction tank includes:

[0034] Based on the test channel, a constant current is provided to the electrode sample to be tested and the inert cathode connected to the test channel, so that the electrode sample to be tested and the inert cathode connected to the test channel both form an electrolysis process in the electrolysis reaction tank;

[0035] Wherein, the voltage value of the electrolysis process is detected, including:

[0036] Based on the test channel, the voltage value of the electrolysis process formed by the electrode sample to be tested and the inert cathode connected to the test channel in the electrolysis reaction tank is detected.

[0037] According to the technical solution of the present application, the detection unit is respectively connected to the electrode sample to be tested and the inert cathode prepared based on the filamentary electrode to be tested, and provides a constant current to the electrode sample to be tested and the inert cathode to form an electrolysis process in the electrolysis reaction tank. At the same time, the detection unit is also used to detect the voltage value of the electrolysis process, and determine the enhanced life of the electrode sample to be tested based on the voltage value, thereby realizing the detection of the enhanced life of the electrode. Since the electrode sample to be tested in this solution is prepared based on the filamentary electrode to be tested, the material consumption can be reduced compared to the electrode test piece. Since the area of ​​the electrode sample to be tested is reduced, the energy consumption can be reduced when the test current density remains unchanged.

[0038] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0040] Figure 1 A structural block diagram of an electrode enhanced life detection device provided in an embodiment of the present application;

[0041] Figure 2 A schematic diagram of an electrode sample to be tested in an embodiment of the present application;

[0042] Figure 3 A structural block diagram of another electrode enhanced life detection device provided in an embodiment of the present application;

[0043] Figure 4 A flow chart of an enhanced life detection method for an electrode provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0045] It should be noted that in the electrocatalytic oxidation process, dimensionally stable anodes (DSA) are the electrodes with the most application potential. DSA is widely used in the fields of chlor-alkali industry, electrolytic refining, electroplating, organic electrosynthesis, etc. The use of coated titanium electrodes can increase the life of the electrode, eliminate the problem of changes in the spacing between the electrode plates, reduce the cell voltage and thus reduce energy consumption, and reduce the problem of electrolyte pollution caused by impurities in the electrode entering the electrolyte, which has brought great progress to the above industries. However, in the process of wastewater treatment, the water quality is relatively complex and fluctuates greatly. The common mixed salt system of sulfate and chloride ions in wastewater will aggravate the corrosion of the electrode. If fluoride ions are present, the titanium substrate will be rapidly corroded during the electrolysis process, causing the electrode to fail. Depending on the type and reaction conditions of organic matter in wastewater, electropolymerization may occur to passivate the electrode, and certain types of organic matter may also accelerate electrode corrosion. Due to the large changes in water quality, it is difficult to reasonably estimate the service life of the electrode, which makes the use of electrocatalytic oxidation technology as a means of wastewater treatment have certain risks. Therefore, it is very necessary to test the accelerated life of the electrode before use. However, in the related art, the test of electrode enhancement life has the problems of serious energy waste and electrode material consumption.

[0046] In order to solve the above problems, the present application provides an enhanced life detection device and method for an electrode.

[0047] Figure 1 The present invention provides a structural block diagram of an electrode strengthening life detection device. Figure 1 As shown, the device includes an electrolytic reaction tank 101, an electrode sample to be tested 102, an inert cathode 103 and a detection unit 104. Wherein:

[0048] The electrode sample 102 to be tested and the inert cathode 103 are located in the electrolytic reaction tank 102, and the electrode sample 102 to be tested is prepared based on the filamentary electrode to be tested. The detection unit 104 is connected to the electrode sample 102 to be tested and the inert cathode 103 respectively, and the detection unit 104 is used to provide a constant current to the electrode sample 102 to be tested and the inert cathode 103, so that an electrolysis process is formed in the electrolytic reaction tank 101; the detection unit 104 is also used to detect the voltage value of the electrolysis process, and determine the enhanced life of the electrode sample 102 to be tested according to the voltage value. It should be noted that the filamentary electrode to be tested refers to an electrode to be tested in a filamentary shape, and the materials and methods in the preparation process of the filamentary electrode to be tested are consistent with the materials and methods in the preparation process of the electrode to be tested, and the only difference is the shape.

[0049] In some embodiments of the present application, the electrode sample 102 to be tested can be a coated electrode in the field of electrochemical water treatment, such as a titanium-based coated electrode, or other electrodes that require enhanced life detection. The inert cathode 103 can be a negative electrode in a conventional electrolytic reaction, such as a platinum sheet electrode. An electrolyte is placed in the electrolytic reaction tank 101, and the electrolyte can be an electrolyte commonly used in an accelerated life test process, such as a sulfuric acid solution with a concentration of 0.5 mol / L. Among them, the electrode sample 102 to be tested and the inert cathode 103 are partially immersed in the electrolyte to form an electrolytic system.

[0050] Figure 2 Schematic diagram of an electrode sample to be tested in an embodiment of the present application. Figure 2 As shown, the electrode sample to be tested includes a filamentary electrode to be tested 201, a wire 202, and an epoxy resin layer 203. Among them, one end of the filamentary electrode to be tested 201 is welded to one end of the wire 202, a part of the filamentary electrode to be tested 201 and a part of the wire 202 are wrapped by the epoxy resin layer 203, and another part of the filamentary electrode to be tested 201 and another part of the wire 202 are not wrapped by the epoxy resin layer 203. The epoxy resin layer is formed based on the epoxy resin filled in the gap between the welded wire and the pointed plastic tube. Among them, the detection unit can be connected to the wire 202 in the electrode sample to be tested. The part of the wire 202 not wrapped by the epoxy resin layer 203 is used to connect with external components. When fixing the electrode sample to be tested, the side of the filamentary electrode to be tested 201 that is not wrapped by the epoxy resin layer 203 is placed downward, and the parts of the wire 202 that are not wrapped by the epoxy resin layer 203 are respectively connected to the detection unit, so that the filamentary electrode to be tested 201 contacts the electrolyte to form an electrolysis system. In addition, since the epoxy resin layer wraps part of the filamentary electrode to be tested and part of the wire, only the part of the filamentary electrode to be tested that is not wrapped participates in the electrolysis process. Among them, the diameter of the filamentary electrode to be tested 201 can be determined according to actual needs, Figure 2 The diameter of the wire-shaped electrode to be tested 201 in the example is 1 mm. The length of the portion of the wire-shaped electrode to be tested 201 not wrapped by the epoxy resin layer 203 can also be determined based on actual needs. Figure 2 The length of the portion of the wire-shaped electrode 201 to be tested that is not wrapped by the epoxy resin layer 203 is 10 mm. This can not only reduce the use of electrode materials, but also reduce the electrode surface area involved in the electrolysis process due to the use of electrode wires, thereby reducing the energy consumption during the enhanced life detection process.

[0051] As an implementation method, Figure 2The electrode sample to be tested shown can be prepared in the following manner: a filamentary electrode to be tested is welded to a conducting wire, wherein the diameters of the filamentary electrode to be tested and the conducting wire are both 1 mm, and the welded filamentary electrode to be tested and the conducting wire are placed in a pointed plastic tube with an inner diameter of 5 mm, and the length of the filamentary electrode to be tested protruding from the pointed side of the pointed plastic tube is 10 mm, and the length of the conducting wire protruding from the non-pointed side of the pointed plastic tube is 2 mm; epoxy resin is filled into the gaps formed between the conducting wire and a part of the filamentary electrode to be tested located in the pointed plastic tube, respectively, and the gaps formed between the pointed plastic tube and the part of the filamentary electrode to be tested located in the pointed plastic tube are respectively filled with epoxy resin, and after the filling is completed, the gap is left for 48 hours, and after the epoxy resin is completely hardened, the plastic tube is removed to obtain the sample shown in FIG. Figure 2 The electrode sample to be tested is shown.

[0052] In some embodiments of the present application, Figure 1 The detection unit 104 shown is also used to detect and record the change of the voltage value of the electrolysis process with the electrolysis time, and determine the enhanced life of the electrode sample to be tested through the sudden change of the voltage value. Specifically used for: providing a constant current to the electrode sample 102 to be tested and the inert cathode 103, and recording the start time of the detection; real-time detection of the voltage value of the electrolysis process, and comparing the voltage value with the preset voltage threshold; when the voltage value is greater than or equal to the preset voltage threshold, stop providing the constant current, stop detecting the voltage value, and record the end time of the detection; the difference between the end time of the detection and the start time of the detection is used as the enhanced life of the electrode sample 102 to be tested. Among them, the detection unit 104 can detect the voltage value during the electrolysis process according to the preset sampling frequency, and the preset voltage threshold is set based on the conditions during the actual detection, for example: the current density of the constant current is 0.5A / cm 2 , the electrode spacing is 10 mm, the temperature of the electrolyte in the electrolysis reaction tank is 50°C, and the preset voltage threshold can be set to 5.0 V, that is, when the voltage value rises to 5.0 V, the electrode sample to be tested is considered to be in a failed state.

[0053] According to the electrode enhanced life detection device of the embodiment of the present application, the detection unit is respectively connected to the electrode sample to be tested prepared based on the filamentary electrode to be tested and the inert cathode, and provides a constant current to the electrode sample to be tested and the inert cathode to form an electrolysis process in the electrolysis reaction tank. At the same time, the detection unit is also used to detect the voltage value of the electrolysis process, and determine the enhanced life of the electrode sample to be tested based on the voltage value, thereby realizing the detection of the enhanced life of the electrode. Since the electrode sample to be tested in this scheme is prepared based on the filamentary electrode to be tested, the material consumption can be reduced compared to the electrode test piece. Since the area of ​​the electrode sample to be tested is reduced, the energy consumption can be reduced when the test current density remains unchanged.

[0054] Figure 3 This is a structural block diagram of another electrode enhanced life detection device provided in an embodiment of the present application. Figure 3As shown, the device includes: an electrolytic reaction tank 301, an electrode sample to be tested 302, an inert cathode 303, a detection unit 304 and a constant temperature water bath unit 305. The constant temperature water bath unit 305 is used to provide a preset constant temperature environment for the electrolytic reaction tank 301. Usually, during the enhanced life detection process of the electrode, the temperature of the constant temperature water bath can be set to 50 to 70°C to reduce the duration of the detection process.

[0055] In some embodiments of the present application, the electrolytic reaction tank 301 may be equipped with a sealing cover 301-1, and the sealing cover 301-1 has a gas outlet 301-2 to discharge the gas generated during the electrolysis process. Since the electrolytic reaction tank 301 is equipped with a sealing cover, the evaporation of the electrolyte at the water bath temperature can be avoided. In addition, in order to fix the electrode, the sealing cover 301-1 may be reserved with at least two slots 301-3, and the at least two slots 301-3 are respectively used to fix the electrode sample 302 to be tested and the inert cathode 303.

[0056] Typically, the enhanced life of an electrode can be as long as tens to thousands of hours. If the detection device can only detect the enhanced life of one electrode to be tested, it will take a long time to detect the enhanced life of multiple electrodes to be tested. In order to solve the above problems, in some embodiments of the present application, the detection unit 304 may include multiple test channels 304-1, so that when there are multiple electrode samples to be tested, multi-channel parallel testing can be achieved to improve test efficiency and test accuracy. It should be noted that the number of slots reserved on the sealing cover 301-1 can also be multiple, and the number can be determined based on actual application requirements to achieve the fixation of multiple electrode samples to be tested and inert cathodes.

[0057] As an implementation method, there are multiple electrode samples to be tested, and there are also multiple inert cathodes, each electrode corresponds to an inert cathode, and each electrode to be tested and the corresponding inert cathode form a first electrode group. Each first electrode group is connected to any one of the multiple test channels, and each test channel is connected to at most one first electrode group; each test channel is used to provide a constant current to the first electrode group connected thereto, and detect the voltage value of the corresponding electrolysis process, and determine the enhanced life of the corresponding electrode sample to be tested according to the voltage value of the corresponding electrolysis process.

[0058] Figure 3In the example, the number of slots 301-3 on the sealing cover 301-1 is 8, the number of test channels 304-1 is 4, the number of electrode samples 302 to be tested is 2, and the number of inert cathodes 303 is 2, wherein the electrode samples to be tested and the inert cathode form 2 first electrode groups, each of which is connected to any of the 4 test channels 304-1, that is, the electrode samples to be tested 302 and the inert cathode 303 in each first electrode group are connected to the corresponding test channel 304-1, and each test channel 304-1 is connected to at most one first electrode group. In this way, if the test channel 304-1 is connected, the connected test channel 304-1 can provide a constant current for the first electrode group connected thereto, and detect the voltage value of the electrolysis process corresponding to the first electrode group connected thereto, and determine the strengthening life of the electrode sample 302 to be tested in the first electrode group connected thereto according to the voltage value of the corresponding electrolysis process.

[0059] As another embodiment, there are multiple electrode samples to be tested in the device, and the multiple electrode samples to be tested share an inert cathode, each electrode to be tested forms a second electrode group with the inert cathode, and the detection unit includes multiple test channels, wherein each second electrode group is connected to any one of the multiple test channels, and each test channel is connected to at most one second electrode group. Each test channel is used to provide a constant current to the second electrode group connected thereto, and detect the voltage value of the corresponding electrolysis process, and determine the enhanced life of the corresponding electrode sample to be tested according to the voltage value of the corresponding electrolysis process.

[0060] According to the enhanced life detection device of the electrode of the embodiment of the present application, by adding a constant temperature water bath unit, a corresponding ambient temperature can be provided for the electrolysis process to speed up the detection process. In addition, the detection unit includes multiple test channels. When there are multiple electrode samples to be tested, the enhanced life of different electrode samples to be tested can be tested through multiple parallel test channels, which can not only improve the detection efficiency, but also improve the detection accuracy.

[0061] Next, in order to verify the strengthening life detection device of the electrode in the embodiment of the present application, the strengthening life of the electrode sample to be tested is detected through the following experiment.

[0062] By preparing the electrode sample to be tested based on the filamentary electrode to be tested in the above-mentioned embodiment, a ruthenium-iridium-coated titanium electrode sample and an iridium-tantalum-coated titanium electrode sample are prepared, and the electrode wire diameter of the prepared electrode sample is 1 mm and the effective length is 10 mm; the ruthenium-iridium-coated titanium electrode sample and the iridium-tantalum-coated titanium electrode sample are both used as the electrode samples to be tested, and the platinum sheet electrode is used as the inert cathode, and is placed in an electrolytic reaction tank; a dual-channel test is adopted, the ruthenium-iridium-coated titanium electrode sample and its corresponding platinum sheet electrode are both connected to the test channel 1 of the detection unit, and the iridium-tantalum-coated titanium electrode sample and its corresponding platinum sheet electrode are both connected to the test channel 2 of the detection unit, and the current density provided by each test channel for the electrolytic reaction is 0.5 A / cm 2 ; The electrolyte in the electrolytic reaction tank is a 0.5 mol / L sulfuric acid solution, and the water bath temperature is 50°C; the preset voltage threshold is 5V, and the test channel 1 and the test channel 2 detect the voltage value of the electrolysis process with a sampling density of 60 / h, and the voltage value is greater than or equal to 5V as the detection end point, that is, the time from the start of detection to the end of detection is taken as the enhanced life of the electrode. Among them, the enhanced life of the prepared ruthenium-iridium coated titanium electrode sample is 180h, and the enhanced life of the iridium-tantalum coated titanium electrode sample is 1067h.

[0063] In order to implement the above embodiments, the present disclosure provides a method for enhancing life detection of an electrode.

[0064] Figure 4 The flowchart of a method for detecting the enhanced life of an electrode provided in an embodiment of the present application is as follows. It should be noted that the method for detecting the enhanced life of an electrode in an embodiment of the present application is applied to the device for detecting the enhanced life of an electrode in the above-mentioned embodiment. Figure 4 As shown, the method is performed by a detection unit in an electrode reinforcement life detection device, and includes the following steps:

[0065] Step 401, providing a constant current to the electrode sample to be tested and the inert cathode to form an electrolysis process in the electrolysis reaction cell.

[0066] Step 402, detecting the voltage value of the electrolysis process.

[0067] Step 403, determining the strengthening life of the electrode sample to be tested according to the voltage value.

[0068] In some embodiments of the present application, the detection unit determines the enhanced life of the electrode sample to be tested according to the voltage value, which may include the following steps:

[0069] Step 403-1, when a constant current is supplied to the electrode sample to be tested and the inert cathode, the detection start time is recorded.

[0070] Step 403 - 2 , comparing the voltage value with a preset voltage threshold.

[0071] Step 403-3, when the voltage value is greater than the preset voltage threshold, stop providing the constant current, stop detecting the voltage value, and record the detection end time.

[0072] Step 403-4, taking the difference between the detection end time and the detection start time as the strengthening life of the electrode sample to be tested.

[0073] In some embodiments of the present application, if the number of electrode samples to be tested is multiple, the electrode enhanced life detection device is as follows: Figure 3 As shown, the implementation of step 401 may include: providing a constant current to the electrode sample to be tested and the inert cathode connected to the test channel based on the test channel, so that the electrode sample to be tested and the inert cathode connected to the test channel both form an electrolysis process in the electrolysis reaction tank. Wherein, the implementation of step 402 may include: detecting the voltage value of the electrolysis process formed by the electrode sample to be tested and the inert cathode connected to the test channel in the electrolysis reaction tank based on the test channel. The implementation method of step 403 may include: each test channel of the detection unit records the detection start time when providing a constant current to the electrode sample to be tested and the inert cathode connected thereto; each test channel compares the voltage value of the electrolysis process formed by the electrode to be tested and the inert cathode connected thereto in the electrolysis reaction tank with a preset voltage threshold; when the voltage value of the electrolysis process formed by the electrode to be tested and the inert cathode connected to a certain test channel in the electrolysis reaction tank is greater than the preset voltage threshold, the test channel stops providing the constant current, stops detecting the voltage value, and records the detection end time; the test channel uses the difference between the recorded detection end time and the detection start time as the enhanced life of the electrode sample to be tested connected to the test channel.

[0074] According to the enhanced life detection method of the electrode of the embodiment of the present application, based on the detection unit in the enhanced life detection device of the electrode, a constant current is provided to the electrode sample to be tested and the inert cathode to form an electrolysis process in the electrolysis reaction tank, and the voltage value of the electrolysis process is detected, and the enhanced life of the electrode sample to be tested is determined according to the voltage value. Since the electrode sample to be tested in this scheme is prepared based on the filamentary electrode to be tested, the material consumption can be reduced compared with the electrode test piece, and since the area of ​​the electrode sample to be tested is reduced, the energy consumption can be reduced when the test current density remains unchanged. In addition, since the detection unit can include multiple test channels, parallel detection of the enhanced life of multiple electrodes can be achieved to improve the detection efficiency of the enhanced life.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0077] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0078] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0079] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0080] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0081] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0082] The storage medium mentioned above may be a read-only memory, a disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An electrode enhanced life detection device, characterized in that: The electrode is used in the electrochemical water treatment process, and the device includes: an electrolytic reaction tank, an electrode sample to be tested, an inert cathode, a detection unit and a constant temperature water bath unit, wherein: The electrolytic reaction tank is equipped with a sealing cover, and the sealing cover has a gas outlet; The electrode sample to be tested and the inert cathode are located in the electrolytic reaction tank, and the electrode sample to be tested is prepared based on a filamentary electrode to be tested, and the electrode sample to be tested includes a filamentary electrode to be tested, a wire and an epoxy resin layer, one end of the filamentary electrode to be tested is welded to one end of the wire, a part of the filamentary electrode to be tested and a part of the wire are both wrapped by the epoxy resin layer, and another part of the filamentary electrode to be tested and another part of the wire are not wrapped by the epoxy resin layer; the epoxy resin layer is formed by epoxy resin filled in the gap between the wire and the pointed plastic tube after welding; The detection unit is connected to the electrode sample to be tested and the inert cathode respectively, and is used to provide a constant current to the electrode sample to be tested and the inert cathode so as to form an electrolysis process in the electrolysis reaction tank; the detection unit is also used to detect a voltage value of the electrolysis process, and determine the strengthening life of the electrode sample to be tested according to the voltage value; The constant temperature water bath unit is used to provide a preset constant temperature environment for the electrolytic reaction tank.

2. The device according to claim 1, characterized in that The detection unit is connected to the wire in the electrode sample to be tested.

3. The device according to claim 1, characterized in that At least two slots are reserved on the sealing cover, and the at least two slots are used to fix the electrode sample to be tested and the inert cathode respectively.

4. The device according to claim 1, characterized in that The detection unit is specifically used for: Providing a constant current to the electrode sample to be tested and the inert cathode, and recording the start time of the test; Detecting the voltage value of the electrolysis process in real time, and comparing the voltage value with a preset voltage threshold; When the voltage value is greater than or equal to the preset voltage threshold, stop providing the constant current, stop detecting the voltage value, and record the detection end time; The difference between the detection end time and the detection start time is used as the strengthening life of the electrode sample to be tested.

5. The device according to any one of claims 1 to 4, characterized in that There are multiple electrode samples to be tested, multiple inert cathodes, each electrode to be tested corresponds to one inert cathode, and each electrode to be tested and the corresponding inert cathode form a first electrode group; the detection unit includes multiple test channels, wherein: Each of the first electrode groups is connected to any one of the multiple test channels, and each of the test channels is connected to at most one first electrode group; each of the test channels is used to provide a constant current to the first electrode group connected thereto, and detect the voltage value of the corresponding electrolysis process, and determine the enhanced life of the corresponding electrode sample to be tested according to the voltage value of the corresponding electrolysis process.

6. The device according to any one of claims 1 to 4, characterized in that There are multiple electrode samples to be tested, and the multiple electrode samples to be tested share an inert cathode, and each electrode to be tested forms a second electrode group with the inert cathode; the detection unit includes multiple test channels, wherein: Each of the second electrode groups is connected to any one of the multiple test channels, and each of the test channels is connected to at most one second electrode group; each of the test channels is used to provide a constant current to the second electrode group connected thereto, and detect the voltage value of the corresponding electrolysis process, and determine the enhanced life of the corresponding electrode sample to be tested according to the voltage value of the corresponding electrolysis process.

7. A method for detecting the enhanced life of an electrode, characterized in that: The method is applied to the enhanced life detection device of the electrode according to any one of claims 1 to 6, comprising: Providing a constant current to the electrode sample to be tested and the inert cathode to form an electrolysis process in the electrolysis reaction tank; Detecting the voltage value of the electrolysis process; The strengthening life of the electrode sample to be tested is determined according to the voltage value.

8. The method according to claim 7, characterized in that Determining the strengthening life of the electrode sample to be tested according to the voltage value includes: When a constant current is supplied to the electrode sample to be tested and the inert cathode, recording the detection start time; comparing the voltage value with a preset voltage threshold; When the voltage value is greater than the preset voltage threshold, stop providing the constant current, stop detecting the voltage value, and record the detection end time; The difference between the detection end time and the detection start time is used as the strengthening life of the electrode sample to be tested.

9. The method according to any one of claims 7-8, characterized in that The step of providing a constant current to the electrode sample to be tested and the inert cathode to form an electrolysis process in the electrolysis reaction tank comprises: Based on the test channel, a constant current is provided to the electrode sample to be tested and the inert cathode connected to the test channel, so that the electrode sample to be tested and the inert cathode connected to the test channel both form an electrolysis process in the electrolysis reaction tank; Wherein, the voltage value of the electrolysis process is detected, including: Based on the test channel, the voltage value of the electrolysis process formed by the electrode sample to be tested and the inert cathode connected to the test channel in the electrolysis reaction tank is detected.

Images