Bipolar electrolytic bath

Abstract

The utility model provides a bipolar electrolytic bath which comprises a conductive structure and a plurality of groups of electrolytic baths connected in series along a first direction, each group of electrolytic baths comprises a cathode electrolytic chamber and an anode electrolytic chamber which are arranged at intervals in the first direction through a conductive net assembly, and insulating layers are arranged on the inner sides of the cathode electrolytic chamber and the anode electrolytic chamber. The electrolytic tank is provided with a first current-carrying plate and a second current-carrying plate, at least parts of the first current-carrying plate and the second current-carrying plate respectively form side walls of the anode electrolysis chamber and the cathode electrolysis chamber, the conductive structure comprises a countersunk bolt, a sealing bolt, a sealing piece and a fixing bolt, the countersunk bolt is arranged on the conductive net assembly in a penetrating manner, and the sealing piece is arranged on the sealing piece. The sealing bolt is connected with the conductive net assembly in a sealing mode and arranged on the countersunk bolt in a sleeving mode, the fixing bolt is arranged on the first current carrying plate and / or the second current carrying plate and arranged on the sealing bolt in a sleeving mode, and the sealing piece is located between the fixing bolt and the head of the sealing bolt. The utility model solves the problem that metal ions in the cathode and anode electrolysis chambers are separated out in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrolytic equipment technical field especially relates to a bipolar electrolytic cell. BACKGROUND

[0002] In the technical field of bipolar electrolytic cell, a long-standing and urgent problem is the deposition of metal ions in the cathode and anode electrolytic chambers. This phenomenon not only directly affects the purity and grade of the product, but also seriously restricts the stable operation and efficiency improvement of the electrolytic cell.

[0003] As a key equipment in chemical production, the working principle of bipolar electrolytic cell is based on the electrolysis process, which realizes the transformation and separation of substances through the electrolysis reaction of cathode and anode. However, in the actual operation process, due to the complex physical and chemical environment inside the electrolytic cell, as well as the influence of current, temperature, pressure and other multiple factors, metal ions often appear in the cathode and anode electrolytic chambers. These metal ions may come from the construction materials of the electrolytic cell, impurities in the electrolyte, or by-products produced in the electrolysis process.

[0004] The deposition of metal ions not only leads to the decrease of product purity, affecting the quality and performance of the product, but also may cause corrosion to the electrode material of the electrolytic cell, shortening the service life of the electrolytic cell. More seriously, the accumulation of metal ions may also cause a series of problems such as internal short circuit and current efficiency reduction of the electrolytic cell, seriously affecting the stability and efficiency of the electrolysis process.

[0005] Therefore, how to solve the problem of metal ion deposition in the cathode and anode electrolytic chambers of bipolar electrolytic cell and improve the purity and grade of the product has become a technical problem to be solved in the industry. The solution of this problem not only has important significance for improving the operation efficiency and stability of the electrolytic cell, but also will promote the upgrading of related chemical products and promote the sustainable and healthy development of the entire industry. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a bipolar electrolytic cell to solve the problem of metal ion deposition in the cathode and anode electrolytic chambers in the prior art.

[0007] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a kind of bipolar electrolytic cell, wherein, including conductive structure and multiple electrolytic cells connected in series along the first direction, each group of electrolytic cell includes cathode electrolytic chamber and anode electrolytic chamber, both are spaced apart in the first direction by conductive net component, the inner side of the cathode electrolytic chamber and anode electrolytic chamber is equipped with insulating layer, electrolytic cell has the first current-carrying plate and the second current-carrying plate relatively arranged in the first direction, the cathode electrolytic chamber and anode electrolytic chamber are located between the first current-carrying plate and the second current-carrying plate, at least part of the first current-carrying plate and the second current-carrying plate respectively form the side wall of anode electrolytic chamber and cathode electrolytic chamber, conductive structure includes countersunk bolt, sealing bolt, sealing element and fixed bolt, countersunk bolt is worn on conductive net component, sealing bolt is sealingly connected with conductive net component and is sleeved on countersunk bolt, fixed bolt is arranged on the first current-carrying plate and / or the second current-carrying plate and is sleeved on sealing bolt, sealing element is located between the head of fixed bolt and sealing bolt.

[0008] As a further improvement of the utility model, wherein, the conductive net component includes cathode net component close to the cathode electrolytic chamber and anode net component close to the anode electrolytic chamber, the countersunk bolt includes the first countersunk bolt worn on the cathode net component and the second countersunk bolt worn on the anode net component, the first countersunk bolt is nickel structure.

[0009] As a further improvement of the utility model, wherein, further include ion membrane, the ion membrane is clamped between the cathode net component and anode net component to space the cathode electrolytic chamber and anode electrolytic chamber.

[0010] As a further improvement of the utility model, wherein, the cathode net component includes nickel surface net, nickel elastic net and nickel support net, which are sequentially stacked from the direction of the first current-carrying plate to the second current-carrying plate.

[0011] As a further improvement of the utility model, wherein, the insulating layer is plastic with a purity of more than 99.99%.

[0012] As a further improvement of the utility model, wherein, the anode electrolytic chamber includes two side walls oppositely arranged in the second direction, and the two side walls are formed by parts of titanium square tubes, wherein the second direction is perpendicular to the first direction.

[0013] As a further improvement of the utility model, wherein, the cathode electrolytic chamber includes two side walls oppositely arranged in the second direction, and the two side walls are formed by parts of stainless steel square tubes, wherein the second direction is perpendicular to the first direction.

[0014] As further improvement of the embodiment of the utility model, still include anode liquid inlet pipe and the anode liquid outlet pipe that sets above anode liquid inlet pipe, anode liquid inlet pipe and anode liquid outlet pipe respectively through a plurality of flow passages are connected to each anode electrolytic chamber.

[0015] As further improvement of the embodiment of the utility model, still include cathode liquid inlet pipe and the cathode liquid outlet pipe that sets above cathode liquid inlet pipe, cathode liquid inlet pipe and cathode liquid outlet pipe respectively through a plurality of flow passages are connected to each cathode electrolytic chamber.

[0016] Compared with prior art, the utility model has the beneficial effects that:

[0017] The sink bolt, sealing bolt, sealing element and fixing bolt in the conductive structure are matched and arranged, which realizes the sealing connection with the side wall of the electrolytic cell and effectively plays the effect of conduction, the contact area of the conductive structure and the solution in the electrolytic cell is far less than the contact area of the side wall of the electrolytic cell and the solution, thereby greatly improving the problem of metal ion precipitation in the cathode electrolytic chamber and the anode electrolytic chamber in the electrolysis reaction. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides a kind of structure schematic diagram of bipolar electrolytic cell for embodiment of the utility model;

[0019] Figure 2 The utility model provides a kind of structure schematic diagram of bipolar electrolytic cell for embodiment of the utility model; Figure 1 The utility model provides a kind of structure schematic diagram of bipolar electrolytic cell for embodiment of the utility model;

[0020] Figure 3 The utility model provides a kind of structure schematic diagram of bipolar electrolytic cell for embodiment of the utility model; Figure 2 The above brief description of drawings includes the following reference signs: 1, electrolytic cell;

[0021] 11, cathode electrolytic chamber;

[0022] 12, anode electrolytic chamber;

[0023] 13, conductive mesh assembly;

[0024] 131, cathode mesh assembly;

[0025] 1311, nickel surface mesh;

[0026] 1312, nickel elastic mesh;

[0027] 1313, nickel support mesh;

[0028] 132, anode mesh assembly;

[0029] 14, first current-carrying plate;

[0030] 15, second current-carrying plate;

[0031] 2, conductive structure;

[0032] 21. A countersunk head bolt;

[0033] 22. A sealing bolt;

[0034] 23. A seal;

[0035] 24. A fixing bolt;

[0036] 3. An anode liquid inlet pipe;

[0037] 4. An anode liquid outlet pipe;

[0038] 5. A cathode liquid inlet pipe;

[0039] 6. A cathode liquid outlet pipe;

[0040] 7. An ion exchange membrane;

[0041] X, a first direction;

[0042] Y, a second direction. DETAILED DESCRIPTION

[0043] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0045] In the present application, unless otherwise specified, the orientation words such as "upper, lower, top, bottom" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refers to the inner and outer relative to the contour of each component, but the above orientation words are not used to limit the present application.

[0046] In order to solve the problem of metal ion precipitation in the cathode and anode electrolysis chambers in the prior art, the present application provides a new bipolar electrolytic cell.

[0047] The present application will be described in further detail below in combination with the accompanying drawings and specific embodiments.

[0048] As Figures 1-3As shown, the utility model provides a kind of bipolar electrolytic cell, including conducting structure 2 and multiple groups of electrolytic cell 1 along the first direction X series connection, each group of electrolytic cell 1 includes cathode electrolytic chamber 11 and anode electrolytic chamber 12, both are spaced apart in the first direction by conducting net component 13, the inside of cathode electrolytic chamber 11 and anode electrolytic chamber 12 is equipped with insulating layer, electrolytic cell 1 has the first current-carrying plate 14 and second current-carrying plate 15 relatively arranged in the first direction X, the cathode electrolytic chamber 11 and anode electrolytic chamber 12 are located between the first current-carrying plate 14 and second current-carrying plate 15, and at least part of the first current-carrying plate 14 and second current-carrying plate 15 respectively form the side wall of anode electrolytic chamber 12 and cathode electrolytic chamber 11, conducting structure 2 includes countersunk bolt 21, sealing bolt 22, sealing element 23 and fixed bolt 24, countersunk bolt 21 is threaded on conducting net component 13, sealing bolt 22 is sealed with conducting net component 13 and is sleeved on countersunk bolt 21, fixed bolt 24 is arranged on the first current-carrying plate 14 and / or second current-carrying plate 15 and is sleeved on sealing bolt 22, and sealing element 23 is located between the head of fixed bolt 24 and sealing bolt 22.

[0049] In the utility model, countersunk bolt 21, sealing bolt 22, sealing element 23 and fixed bolt 24 in conducting structure 2 cooperate, realize the sealed connection with the side wall of electrolytic cell 1, and can effectively play the effect of conducting, the contact area of conducting structure 2 and solution in electrolytic cell 1 is far less than the contact area of the side wall of electrolytic cell 1 and solution, to greatly improve the problem of metal ion precipitation in cathode and anode electrolytic chamber in electrolytic reaction.

[0050] Conducting net component 13 further includes cathode net component 131 close to cathode electrolytic chamber 11 and anode net component 132 close to anode electrolytic chamber 12, both are designed as fine mesh structure.Countersunk bolt 21 includes first countersunk bolt threaded on cathode net component 131 and second countersunk bolt threaded on anode net component 132 correspondingly.Especially, first countersunk bolt adopts nickel structure, and this design is aimed at using its good conductivity and corrosion resistance to ensure the stability and efficiency of electrolysis process.Through such structure design, the cooperation of conducting net component and countersunk bolt is more close, not only improves the conducting efficiency, but also further reduces the possibility of metal ion precipitation.

[0051] Bipolar electrolytic cell is further equipped with ion membrane 7, and the ion membrane 7 is carefully clamped between cathode net component 131 and anode net component 132, effectively isolates cathode electrolytic chamber 11 and anode electrolytic chamber 12.The introduction of ion membrane 7 not only ensures the selective permeation of ions in electrolysis process, but also further prevents the undesired migration of metal ions between cathode and anode electrolytic chamber, thereby significantly improving the performance of electrolytic cell and the purity of product.

[0052] Further, the cathode mesh assembly 131 is composed of multiple layers of fine structures, which are sequentially stacked from the first current-carrying plate 14 to the second current-carrying plate 15: the first layer is a nickel surface mesh 1311; the middle layer is a nickel elastic mesh 1312, which has good elasticity and toughness and can effectively relieve mechanical stress in the electrolysis process; and the bottom layer is a nickel support mesh 1313, which provides stable support and enhances the structural strength of the entire cathode mesh assembly. The three-layer structure works cooperatively to ensure efficient and stable operation of the cathode electrolysis chamber.

[0053] In the embodiment, preferably, the insulating layer is made of high-purity plastic with a purity of 99.99% or above, so as to effectively isolate the inner wall of the electrolytic cell from the electrolytic solution and ensure that there is no impurity interference in the electrolysis process.

[0054] Further, in the design of the anode electrolysis chamber 12, two side walls are oppositely arranged in the second direction Y, which is perpendicular to the first direction X in which the electrolytic cells are arranged in series. In particular, the two side walls are directly formed by parts of a titanium square tube, which has excellent corrosion resistance and mechanical strength and provides a firm and stable structural support for the anode electrolysis chamber 12.

[0055] Correspondingly, the cathode electrolysis chamber 11 is provided with two oppositely arranged side walls in the second direction Y, which is perpendicular to the first direction X in which the electrolytic cells are arranged in series. The two side walls are carefully constructed by parts of a stainless steel square tube, which has excellent corrosion resistance, good mechanical properties and excellent electrical conductivity and provides stable and reliable side wall support for the cathode electrolysis chamber, ensuring smooth electrolysis process and high-quality product output.

[0056] The bipolar electrolytic cell is also provided with an anode liquid inlet pipe 3 and an anode liquid outlet pipe 4, which are designed ingeniously, with the anode liquid inlet pipe 3 located below and the anode liquid outlet pipe 4 located above. Through a plurality of flow channels arranged carefully, the anode liquid inlet pipe 3 and the anode liquid outlet pipe 4 are in efficient communication with each anode electrolysis chamber 12, ensuring the orderly flow and uniform distribution of the electrolyte in the anode electrolysis chamber, thereby optimizing the electrolysis process and improving the electrolysis efficiency.

[0057] The bipolar electrolytic cell is also provided with a cathode liquid inlet pipe 5 and a cathode liquid outlet pipe 6, wherein the cathode liquid inlet pipe 5 is located below and the cathode liquid outlet pipe 6 is ingeniously arranged above. Through a series of carefully designed flow channels, the cathode liquid inlet pipe 5 and the cathode liquid outlet pipe 6 are in close and efficient communication with each cathode electrolysis chamber 11. This design ensures the smooth flow and uniform distribution of the electrolyte in the cathode electrolysis chamber, providing a strong guarantee for efficient electrolysis process.

[0058] In summary, the embodiments of the utility model realize the following technical effects:

[0059] The conductive structure 2 realizes not only the firm and sealed connection with the side wall of the electrolytic cell 1 through the precise cooperation of the countersunk bolt 21, the sealing bolt 22, the sealing piece 23 and the fixing bolt 24, but also the high-efficiency conductive performance. This unique design makes the contact area of the conductive structure 2 with the solution in the electrolytic cell 1 significantly reduced, greatly reducing the risk of metal ion precipitation in the cathode and anode electrolytic chambers compared with the extensive contact of the electrolytic cell side wall with the solution.

[0060] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0062] It should be noted that the terms "first", "second", and the like, as used in the specification and in the claims, are intended to modify a particular aspect of the application, but do not specifically limit the order or sequence of steps of the method practices, but encompasses such steps in whatever sequence to perform the methods. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0063] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A bipolar electrolytic cell characterized in that, The application relates to a conductive structure and a plurality of electrolytic cells connected in series along a first direction, each electrolytic cell comprising a cathode electrolytic chamber and an anode electrolytic chamber, both of which are arranged in the first direction by a conductive mesh assembly, the inner sides of the cathode electrolytic chamber and the anode electrolytic chamber are provided with insulating layers, the electrolytic cell has a first current-carrying plate and a second current-carrying plate arranged oppositely in the first direction, the cathode electrolytic chamber and the anode electrolytic chamber are located between the first current-carrying plate and the second current-carrying plate, at least part of the first current-carrying plate and the second current-carrying plate respectively form the side wall of the anode electrolytic chamber and the cathode electrolytic chamber, the conductive structure comprises a countersunk bolt, a sealing bolt, a sealing element and a fixing bolt, the countersunk bolt is arranged on the conductive mesh assembly, the sealing bolt is sealingly connected with the conductive mesh assembly and is sleeved on the countersunk bolt, the fixing bolt is arranged on the first current-carrying plate and / or the second current-carrying plate and is sleeved on the sealing bolt, and the sealing element is located between the head of the fixing bolt and the sealing bolt.

2. The bipolar electrolytic cell of claim 1, wherein, The conductive mesh assembly comprises a cathode mesh assembly close to the cathode electrolytic chamber and an anode mesh assembly close to the anode electrolytic chamber, the countersunk bolt comprises a first countersunk bolt arranged on the cathode mesh assembly and a second countersunk bolt arranged on the anode mesh assembly, and the first countersunk bolt is a nickel structure.

3. The bipolar electrolytic cell of claim 2, wherein, An ion film is further arranged and clamped between the cathode mesh assembly and the anode mesh assembly to separate the cathode electrolytic chamber and the anode electrolytic chamber.

4. The bipolar electrolytic cell of claim 2, wherein, The cathode mesh assembly comprises a nickel surface mesh, a nickel elastic mesh and a nickel support mesh which are sequentially arranged from the direction of the first current-carrying plate to the second current-carrying plate.

5. The bipolar electrolytic cell of claim 1, wherein, The insulating layer is plastic with a purity of more than 99.99%.

6. The bipolar electrolytic cell of claim 1, wherein, The anode electrolytic chamber comprises two side walls arranged oppositely in a second direction, and the two side walls are formed by parts of a titanium square tube, wherein the second direction is perpendicular to the first direction.

7. The bipolar electrolytic cell of claim 1, wherein, The cathode electrolytic chamber comprises two side walls arranged oppositely in a second direction, and the two side walls are formed by parts of a stainless steel square tube, wherein the second direction is perpendicular to the first direction.

8. The bipolar electrolytic cell of claim 1, wherein, An anode liquid inlet pipe and an anode liquid outlet pipe arranged above the anode liquid inlet pipe are further arranged, and the anode liquid inlet pipe and the anode liquid outlet pipe are respectively connected to each anode electrolytic chamber through a plurality of flow channels.

9. The bipolar electrolytic cell of claim 8, wherein, A cathode liquid inlet pipe and a cathode liquid outlet pipe arranged above the cathode liquid inlet pipe are further arranged, and the cathode liquid inlet pipe and the cathode liquid outlet pipe are respectively connected to each cathode electrolytic chamber through a plurality of flow channels.

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