Electrolytic tank cover convenient for replacing electrode, electrolytic tank and device

Abstract

The utility model discloses an electrolytic tank cover convenient for replacing an electrode, an electrolytic tank and a device, and belongs to the technical field of electrochemical testing. The electrolytic tank cover convenient to replace the electrode comprises a cover body, the cover body is provided with a first arc hole, a second arc hole and a first rectangular hole, the inner diameter of the first arc hole is larger than that of the second arc hole, the second arc hole is used for fixing an electrode clamp, and the two opposite ends of the first rectangular hole are communicated with the first arc hole and the second arc hole respectively. The extension width of the first rectangular hole is equal to the diameter of the second arc hole. According to the electrolytic tank cover convenient for replacing the electrode, disclosed by the utility model, the large hole and the small hole are communicated, the large hole is used for replacing the sample of the electrode clamp, and the small hole is used for fixing the electrode clamp, so that the electrode clamp can be quickly taken out and inserted, and the convenience and the flexibility of replacing the sample of the electrode clamp are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrochemical testing, in particular to an electrolytic cell cover, an electrolytic cell and a device which are convenient for replacing electrodes. Background Art

[0002] Electrochemical testing technology mainly involves hydrogen production from water electrolysis, electrocatalytic O2 / CO2 / N2 reduction, electrocatalytic oxidation, etc. There are three main electrodes involved in the test, namely the working electrode, reference electrode and counter electrode. The function of the reference electrode is to calibrate the potential, and the function of the counter electrode is to form a positive and negative electrode system with the working electrode. The reference electrode and the counter electrode do not need to be replaced during the entire test process. When replacing the test sample, in theory, you only need to take the working electrode clamp and replace the new electrode sample.

[0003] However, it is difficult to quickly remove the working electrode clip separately from the cover of the existing electrolytic cell. The only way is to remove all the crocodile clips connecting the electrochemical workstation and the electrolytic cell, unscrew the cover, and take out the electrode clip before replacing the sample on the electrode clip. After the sample is replaced, the electrode clip needs to be reassembled, the cover is screwed on, and the crocodile clip is re-clamped to connect the electrochemical workstation to complete the sample replacement.

[0004] With the rapid development of scientific research, major scientific research institutions are increasingly conducting research in the field of electrochemistry, and the number of test samples required is increasing. The above-mentioned electrolytic cell has a low sample replacement efficiency, and the alligator clip clamping position of the workstation may change during the sample replacement process, and the depth of the three electrodes inserted into the electrolyte surface may also change, resulting in changes in the test environment before and after the sample replacement, reducing the comparability of the sample test results. Utility Model Content

[0005] The utility model aims to provide an electrolytic cell cover, an electrolytic cell and a device which are convenient for replacing electrodes. The cover adopts a large and small hole connection arrangement. The large hole is used for the electrode clamp to replace the sample, and the small hole is used to fix the electrode clamp. The electrode clamp can be quickly removed and inserted, thereby enhancing the convenience and flexibility of changing the electrode clamp.

[0006] In a first aspect, the utility model provides an electrolytic cell cover for facilitating replacement of electrodes, comprising a cover body, wherein the cover body is provided with a first circular arc hole, a second circular arc hole and a first rectangular hole, the inner diameter of the first circular arc hole is larger than the inner diameter of the second circular arc hole, the second circular arc hole is used to fix the electrode clamp, the opposite ends of the first rectangular hole are respectively connected to the first circular arc hole and the second circular arc hole, and the extension width of the first rectangular hole is equal to the diameter of the second circular arc hole.

[0007] The utility model provides an electrolytic cell cover which is convenient for replacing electrodes. The first rectangular hole is connected with the first arc hole and the second arc hole, so that the electrode clip can be quickly taken out and inserted into the cover body, which helps to increase test efficiency and save time.

[0008] Furthermore, the cover body is also provided with a third circular arc hole, a fourth circular arc hole and a second rectangular hole, the inner diameter of the third circular arc hole is larger than the inner diameter of the fourth circular arc hole, the fourth circular arc hole is used to fix the electrode clamp, the opposite ends of the second rectangular hole are respectively connected to the third circular arc hole and the fourth circular arc hole, and the extension width of the second rectangular hole is equal to the diameter of the fourth circular arc hole.

[0009] By adopting the above technical solution, the cover body can quickly remove and insert the two electrode clamps, which can be applied to tests that require simultaneous research of anode and cathode samples, thereby achieving rapid replacement of anode and cathode samples.

[0010] Furthermore, the cover body is further provided with a first hole and a second hole, and the inner diameters of the first hole and the second hole are both equal to the inner diameter of the second circular arc hole.

[0011] By adopting the above technical solution, the first hole and the second hole can be used for inserting and fixing the electrode clamps of the reference electrode and the counter electrode respectively, and the electrode clamp of the working electrode can pass the end holding the working electrode through the first arc hole through the cover body, and then move to the second arc hole through the first rectangular hole for fixation, so that the electrode clamp of the working electrode can be quickly taken out and inserted.

[0012] Furthermore, the cover body is also provided with an exhaust hole, the diameter of the exhaust hole is 1mm-5mm, the diameter of the first arc hole is 10mm-20mm, and the diameter of the second arc hole is 6mm-12mm.

[0013] Furthermore, the number of the exhaust holes is at least two, and at least two of the exhaust holes are arranged on the cover body at intervals.

[0014] Furthermore, it also includes a first rubber plug and a second rubber plug, the first rubber plug is detachably arranged in the first arc hole, and the second rubber plug is detachably arranged in the second arc hole.

[0015] By adopting the above technical solution, the first rubber plug and the second rubber plug can be used to plug the unused first arc hole and the second arc hole during the electrolysis process, thereby reducing the volatilization of the electrolyte, reducing the contact between air and the electrolyte, and reducing the impact of electrolyte changes on the experiment.

[0016] In a second aspect, the utility model provides an electrolytic cell, comprising any of the above-mentioned electrolytic cell covers for facilitating replacement of electrodes.

[0017] Furthermore, the cover body includes a first cylinder and a second cylinder arranged concentrically, and the outer diameter of the first cylinder is larger than the outer diameter of the second cylinder; the electrolytic cell also includes a cell body, which is provided with a receiving cavity for placing the electrolyte, the second cylinder can be inserted into the receiving cavity, and the first cylinder can be clamped on the cell body.

[0018] By adopting the above technical solution, the cover body and the pool body are fixed by embedding, so that the cover body and the pool body can be quickly assembled and disassembled.

[0019] Furthermore, the cell body is a transparent container, and a capacity scale is provided on the cell body.

[0020] By adopting the above technical solution, the volume of the added electrolyte can be clearly read by setting the capacity scale on the cell body, and it is convenient to replenish water to the original liquid level after long-term electrolysis.

[0021] In a third aspect, the utility model provides an electrolytic cell device, comprising:

[0022] An electrolytic cell as described above;

[0023] An electrode clamp, used for clamping the electrode;

[0024] An O-ring is sleeved on the electrode clamp, and the outer diameter of the O-ring is larger than the inner diameter of the second arc hole.

[0025] As can be seen from the above, the electrolytic cell cover provided by the utility model is convenient for replacing electrodes. By setting a second arc hole on the cover body for fixing the electrode clamp, and then realizing the connection between the second arc hole and the first arc hole through the first rectangular hole, the electrode clamp in the second arc hole can be moved into the first arc hole through the first rectangular hole, and because the inner diameter of the first arc hole is larger than the inner diameter of the second arc hole, the electrode clamp can carry the electrode sample through the first arc hole to detach from the cover body; conversely, when it is necessary to assemble the electrode clamp with the electrode sample, first put the end of the electrode clamp fixed with the electrode sample into the first arc hole, and then move the electrode clamp to the second arc hole for fixing to realize the re-fixation of the electrode clamp. The electrode clamp can be quickly taken out and inserted on the cover body, which helps to increase the test efficiency and save time. In addition, since there is no need to disassemble the crocodile clip connected to the electrode, unscrew the cover body, or remove the O-ring of the electrode clamp during the sample change process, it helps to reduce the changes caused by the sample change to the test environment.

[0026] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the embodiments of the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The utility model is a schematic structural diagram of an electrolytic cell device.

[0028] Figure 2 The utility model provides a top view of the structure of an electrolytic cell cover which is convenient for replacing electrodes.

[0029] Figure 3 for Figure 2 A top view of the structure of another embodiment of an electrolytic cell cover that facilitates replacement of electrodes.

[0030] Figure 4 for Figure 2 Schematic diagram of the assembly structure of the electrolytic cell cover and the electrode clamp for easy replacement of electrodes.

[0031] Figure 5 for Figure 1 Front view of the structure of the middle electrode clamp.

[0032] Figure 6 for Figure 1 Side view of the structure of the middle electrode clamp.

[0033] In the accompanying drawings: 100, cover body; 110, first arc hole; 120, second arc hole; 130, third arc hole; 140, fourth arc hole; 151, first rectangular hole; 152, second rectangular hole; 161, first hole; 162, second hole; 170, exhaust hole; 181, first cylinder; 182, second cylinder; 200, cell body; 210, accommodating cavity; 300, electrode clamp; 310, conductive rod; 320, middle part; 330, clamping part; 331, adjusting screw; 400, O-ring. DETAILED DESCRIPTION

[0034] The embodiments of the present invention 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0036] The utility model discloses an electrolytic cell cover that is convenient for replacing electrodes, which is mainly used for electrochemical testing, and solves the problems of low sample replacement efficiency and easy change of test environment in existing electrolytic cells. The electrolytic cell cover is connected by large and small holes, the large hole is used for the electrode clip to replace the sample, and the small hole is used to fix the electrode clip, which can realize the rapid removal and insertion of the electrode clip, and enhance the convenience and flexibility of the electrode clip sample replacement.

[0037] Reference Figure 1 , Attachment Figure 2 In one embodiment, an electrolytic cell cover for convenient electrode replacement includes a cover body 100, the cover body 100 is provided with a first arc hole 110, a second arc hole 120 and a first rectangular hole 151, the inner diameter of the first arc hole 110 is greater than the inner diameter of the second arc hole 120, the second arc hole 120 is used to fix the electrode clamp 300, the opposite ends of the first rectangular hole 151 are respectively connected to the first arc hole 110 and the second arc hole 120, and the extension width of the first rectangular hole 151 is equal to the diameter of the second arc hole 120.

[0038] Specifically, the cover 100 can be made of polytetrafluoroethylene, which has a certain mechanical strength and can be opened or modified according to actual conditions. The cover 100 is acid- and alkali-resistant, high-temperature-resistant, and does not react chemically with metal sheets.

[0039] As can be seen from the above, the electrolytic cell cover provided by the utility model is convenient for replacing electrodes. The second arc hole 120 is provided on the cover body 100 for fixing the electrode clamp 300, and the second arc hole 120 and the first arc hole 110 are connected through the first rectangular hole 151. The electrode clamp 300 in the second arc hole 120 can be moved into the first arc hole 110 through the first rectangular hole 151, and because the inner diameter of the first arc hole 110 is larger than the inner diameter of the second arc hole 120, the electrode clamp 300 can carry the electrode sample through the first arc hole 110 and leave the cover body 100; conversely, when it is necessary to assemble the electrode clamp 300 with the electrode sample, first put the end of the electrode clamp 300 fixed with the electrode sample into the first arc hole 110, and then move the electrode clamp 300 to the second arc hole 120 for fixing, so as to realize the re-fixation of the electrode clamp 300. The electrode clamp 300 can be quickly taken out and inserted on the cover body 100, which helps to increase the test efficiency and save time. In addition, since there is no need to remove the alligator clip connected to the electrode, unscrew the cover 100, or remove the O-ring 400 of the electrode clip 300 during the sample change process, it helps to reduce changes in the test environment caused by sample change.

[0040] In one embodiment, the cover body 100 is further provided with a first hole 161 and a second hole 162 , and the inner diameters of the first hole 161 and the second hole 162 are both equal to the inner diameter of the second arc hole 120 .

[0041] By adopting the above technical solution, the first hole 161 and the second hole 162 can be used for inserting and fixing the electrode clamps of the reference electrode and the counter electrode respectively, and the electrode clamp of the working electrode can pass through the cover body 100 with one end holding the working electrode through the first arc hole 110, and then move to the second arc hole 120 through the first rectangular hole 151 for fixing, so that the electrode clamp of the working electrode can be quickly taken out and inserted.

[0042] In one embodiment, the cover body 100 is provided with sequential numbers, and the sequential numbers are arranged corresponding to the first holes 161 and the second holes 162 .

[0043] Reference Figure 3 In one embodiment, the cover body 100 is further provided with a third arc hole 130, a fourth arc hole 140 and a second rectangular hole 152, the inner diameter of the third arc hole 130 is greater than the inner diameter of the fourth arc hole 140, the fourth arc hole 140 is used to fix the electrode clamp 300, the opposite ends of the second rectangular hole 152 are respectively connected to the third arc hole 130 and the fourth arc hole 140, and the extension width of the second rectangular hole 152 is equal to the diameter of the fourth arc hole 140.

[0044] By adopting the above technical solution, the cover 100 can quickly remove and insert the two electrode clips 300, and can be applied to the test that requires studying the anode and cathode samples at the same time, thereby realizing the rapid replacement of the anode and cathode samples.

[0045] In one embodiment, the cover body 100 is further provided with an exhaust hole 170 , the diameter of the exhaust hole 170 is 1 mm-5 mm, the diameter of the first arc hole 110 is 10 mm-20 mm, and the diameter of the second arc hole 120 is 6 mm-12 mm.

[0046] In one embodiment, the number of the exhaust holes 170 is at least two, and at least two exhaust holes 170 are spaced apart on the cover 100 .

[0047] It is worth noting that the diameter of the holes on the cover 100 can be changed according to the diameter of the electrodes, and the number can be changed according to whether the research test system is a three-electrode system or a two-electrode system.

[0048] In one embodiment, the first rubber plug and the second rubber plug are further included. The first rubber plug is detachably disposed in the first arc hole 110 , and the second rubber plug is detachably disposed in the second arc hole 120 .

[0049] By adopting the above technical solution, the first rubber plug and the second rubber plug can be used to plug the unused first arc hole 110 and the second arc hole 120 during the electrolysis process, thereby reducing the volatilization of the electrolyte, reducing the contact between air and the electrolyte, and reducing the impact of electrolyte changes on the experiment.

[0050] Reference Figure 1 , Attachment Figure 4 The utility model also provides an electrolytic cell, which includes an electrolytic cell cover for facilitating replacement of electrodes according to any of the above embodiments.

[0051] In one embodiment, the cover body 100 includes a first cylinder 181 and a second cylinder 182 arranged concentrically, and the outer diameter of the first cylinder 181 is larger than the outer diameter of the second cylinder 182; the electrolytic cell also includes a cell body 200, and the cell body 200 is provided with a receiving cavity 210 for placing the electrolyte, the second cylinder 182 can be inserted into the receiving cavity 210, and the first cylinder 181 can be clamped on the cell body 200.

[0052] Specifically, the diameter of the first cylinder 181 is 40mm-100mm, the thickness is 2mm-10mm, and the diameter of the second cylinder 182 is 10mm-30mm less than the diameter of the first cylinder 181. The material of the cell body 200 is glass, which has certain mechanical strength, acid and alkali resistance, and high temperature resistance.

[0053] By adopting the above technical solution, the cover body 100 and the pool body 200 are fixed by embedding, so that the cover body 100 and the pool body 200 can be quickly assembled and disassembled.

[0054] In one embodiment, the cell body 200 is a transparent container, and a capacity scale is provided on the cell body 200 .

[0055] By adopting the above technical solution, the volume of the added electrolyte can be clearly read by setting a capacity scale on the cell body 200, and it is convenient to replenish water to the original liquid level after long-term electrolysis.

[0056] The utility model also provides an electrolytic cell device, which includes the electrolytic cell of any of the above embodiments, an electrode clamp 300 and an O-ring 400, the electrode clamp 300 is used to clamp the electrode, the O-ring 400 is sleeved on the electrode clamp 300, and the outer diameter of the O-ring 400 is greater than the inner diameter of the second arc hole 120.

[0057] Reference Figure 5 , Attachment Figure 6Specifically, the electrode clamp 300 includes a conductive rod 310, a middle part 320 and a clamping part 330. The conductive rod 310 is a copper wire, and the conductive rod 310 is plated with nickel or platinum for corrosion protection. The length of the conductive rod 310 is 10mm-20mm and the diameter is 1mm-5mm; the middle part 320 is made of polytetrafluoroethylene material with a length of 60mm-100mm and a diameter of 6mm-12mm, and a platinum wire is embedded inside to connect the conductive rod 310 and the clamping part 330 for conduction, and the O-ring 400 is sleeved on the middle part 320; the clamping part 330 is a cylindrical clamping part divided into two, with a diameter of 10mm-15mm, and an embedded platinum sheet is connected to the middle platinum wire. The clamping part 330 is penetrated by an adjusting screw 331, and the adjusting screw 331 is used to adjust the clamping force of the clamping part 330 on the electrode sample. Together with the adjusting screw 331, the widest part of the side of the clamping part 330 is 15mm-20mm.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0059] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An electrolytic cell cover for facilitating replacement of electrodes, characterized in that: The invention comprises a cover body (100), wherein the cover body (100) is provided with a first circular arc hole (110), a second circular arc hole (120) and a first rectangular hole (151), wherein the inner diameter of the first circular arc hole (110) is greater than the inner diameter of the second circular arc hole (120), the second circular arc hole (120) is used to fix the electrode clamp (300), and the opposite ends of the first rectangular hole (151) are respectively connected to the first circular arc hole (110) and the second circular arc hole (120), and the extension width of the first rectangular hole (151) is equal to the diameter of the second circular arc hole (120).

2. An electrolytic cell cover for facilitating replacement of electrodes according to claim 1, characterized in that: The cover body (100) is further provided with a third circular arc hole (130), a fourth circular arc hole (140) and a second rectangular hole (152); the inner diameter of the third circular arc hole (130) is greater than the inner diameter of the fourth circular arc hole (140); the fourth circular arc hole (140) is used to fix the electrode clamp (300); the opposite ends of the second rectangular hole (152) are respectively connected to the third circular arc hole (130) and the fourth circular arc hole (140); and the extension width of the second rectangular hole (152) is equal to the diameter of the fourth circular arc hole (140).

3. The electrolytic cell cover for facilitating replacement of electrodes according to claim 1, characterized in that: The cover body (100) is further provided with a first hole (161) and a second hole (162), and the inner diameters of the first hole (161) and the second hole (162) are both equal to the inner diameter of the second circular arc hole (120).

4. An electrolytic cell cover for facilitating replacement of electrodes according to any one of claims 1 to 3, characterized in that: The cover body (100) is further provided with an exhaust hole (170), the exhaust hole (170) has a diameter of 1 mm-5 mm, the first arc hole (110) has a diameter of 10 mm-20 mm, and the second arc hole (120) has a diameter of 6 mm-12 mm.

5. The electrolytic cell cover for facilitating replacement of electrodes according to claim 4, characterized in that: The number of the exhaust holes (170) is at least two, and at least two of the exhaust holes (170) are arranged on the cover body (100) at intervals.

6. The electrolytic cell cover for facilitating replacement of electrodes according to claim 1, characterized in that: It also comprises a first rubber stopper and a second rubber stopper, wherein the first rubber stopper is detachably arranged in the first circular arc hole (110), and the second rubber stopper is detachably arranged in the second circular arc hole (120).

7. An electrolytic cell, characterized in that An electrolytic cell cover for facilitating electrode replacement comprising the cover described in any one of claims 1 to 6.

8. An electrolytic cell according to claim 7, characterized in that: The cover body (100) comprises a first cylinder (181) and a second cylinder (182) which are arranged concentrically, and the outer diameter of the first cylinder (181) is larger than the outer diameter of the second cylinder (182); the electrolytic cell also comprises a cell body (200), and the cell body (200) is provided with a receiving cavity (210) for placing an electrolyte, the second cylinder (182) can be inserted into the receiving cavity (210), and the first cylinder (181) can be clamped on the cell body (200).

9. An electrolytic cell according to claim 8, characterized in that: The cell body (200) is a transparent container, and a capacity scale is provided on the cell body (200).

10. An electrolytic cell device, characterized in that: include: The electrolytic cell according to any one of claims 7 to 9; An electrode clamp (300) for clamping an electrode; An O-ring (400) is sleeved on the electrode clamp (300), and the outer diameter of the O-ring (400) is greater than the inner diameter of the second circular arc hole (120).

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