Electrode module for electrolyzing wastewater

Abstract

The utility model discloses an electrode module for electrolyzing wastewater, which comprises a plurality of cathode plates, and an insulating plate is arranged between every two adjacent cathode plates; an insulating bolt for fixing the cathode plate and the insulating plate is arranged between the cathode plate and the insulating plate in a penetrating manner; the first ends of the plurality of cathode plates are respectively provided with connecting lugs, the connecting lugs are connected in series through first conducting strips, the connecting lugs at the head end and the tail end are respectively connected with a cathode electrode bar, and the two cathode electrode bars are connected in series through a cathode conducting plate; a mounting groove is formed in one side, far away from the first end of the cathode plate, of any insulating plate, an anode plate is mounted in the mounting groove, and a discharge gap is formed between the anode plate and the adjacent cathode plate; the two sides of the anode plates extend to form second conducting strips respectively, the second conducting strips are connected in series through a conducting rod, the two ends of the conducting rod are connected with anode electrode bars respectively, and the anode electrode plates are connected in series through anode conducting plates. The electrode module solves the problems that an existing electrode module is complex in structure and inconvenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to an electrode module for electrolyzing wastewater. Background Art

[0002] The electrochemical method for treating wastewater has the advantages of simple equipment, easy operation, high treatment efficiency, no secondary pollution, and high environmental compatibility. With the rapid development of the electric power industry, electrochemical water treatment technology has received more and more attention. The essence of electrochemical reaction is an electrocatalytic reaction, which is a catalytic effect that accelerates the charge transfer reaction at the interface between the electrode and the electrolyte. Electrocatalytic reactions can occur in anodic oxidation, cathode reduction, and the synergistic effect of the yin and yang electrodes. In the prior art, wastewater is electrolyzed by electrolysis equipment, and the core device of the electrolysis equipment is the electrode module. The existing electrode module has a complex structural design, is inconvenient to install and disassemble, and cannot meet production needs. Utility Model Content

[0003] The main purpose of the utility model is to provide an electrode module for electrolyzing wastewater, aiming to solve the problems of complex structure and inconvenient installation and disassembly of the existing electrode module.

[0004] To achieve the above-mentioned purpose, the utility model proposes an electrode module for electrolyzing wastewater, comprising a plurality of cathode plates stacked in sequence, an insulating plate being arranged between two adjacent cathode plates; an insulating bolt for fixing the cathode plate and the insulating plate being passed through between the cathode plates and the insulating plate; a plurality of cathode plates are respectively provided with connecting ears at the first ends, the connecting ears are connected in series through a first conductive sheet, the connecting ears at the head and tail ends are respectively connected to a cathode electrode rod, and the two cathode electrode rods are connected in series through the cathode conductive plate;

[0005] A mounting groove is provided on one side of any of the insulating plates away from the first end of the cathode plate, an anode plate is installed in the mounting groove, and a discharge gap is provided between the anode plate and the adjacent cathode plate; second conductive sheets are respectively extended on both sides of the anode plate, a number of the second conductive sheets are connected in series through a conductive rod, an anode electrode rod is respectively connected at both ends of the conductive rod, and a number of the anode electrode plates are connected in series through the anode conductive plates.

[0006] Optionally, the cathode conductive plate includes two L-shaped cathode conductive plates and one rectangular cathode conductive plate, the first sides of the two L-shaped cathode conductive plates clamp the two cathode electrode rods, and the second sides of the two L-shaped cathode conductive plates are respectively connected to the two ends of the rectangular cathode conductive plate.

[0007] Optionally, the cathode electrode rod is provided with a cathode fixing flat position which fits the L-shaped cathode conductive plate, the first side of the L-shaped cathode conductive plate is connected to the cathode fixing flat position via a conductive bolt, and the second side of the L-shaped cathode conductive plate is connected to the rectangular cathode conductive plate via a conductive bolt.

[0008] Optionally, the number of the anode electrode rods is four, and the four anode electrode rods are arranged in a matrix.

[0009] Optionally, the anode conductive plate includes two groups of L-shaped anode conductive plates and one rectangular anode conductive plate, the two groups of L-shaped anode conductive plates are respectively used to connect two anode electrode rods in series, any group of L-shaped anode conductive plates includes two L-shaped anode conductive plates, the first sides of the two L-shaped anode conductive plates clamp the corresponding two anode electrode rods, and the two groups of L-shaped anode conductive plates are connected through the rectangular anode conductive plate.

[0010] Optionally, the anode electrode rod is provided with an anode fixing flat position fitted with the L-shaped anode conductive plate, the first side of the L-shaped anode conductive plate is connected to the anode fixing flat position via a conductive bolt, and the second side of the L-shaped anode conductive plate is connected to the rectangular anode conductive plate via a conductive bolt.

[0011] Optionally, the anode conductive plate and the cathode conductive plate are both configured as copper plate structures.

[0012] Optionally, the first conductive sheet and the second conductive sheet are both configured as titanium sheet structures.

[0013] Optionally, the anode plate is configured as a boron-doped diamond electrode plate.

[0014] Optionally, a polytetrafluoroethylene sleeve is provided on the outer side of the anode conductive rod.

[0015] The beneficial effects of the utility model are: improving the structure of the existing electrode module for electrolyzing wastewater, simplifying the overall structure of the electrode module, the cathode electrode rods and the anode electrode rods are connected in series through conductive plates, the connection structure between the electrode rods and the conductive plates is simple, and it is convenient to install and disassemble; at the same time, the cathode plate and the insulating plate are stacked in sequence, and then fixed and clamped by the right insulating bolt, which ensures the stability of the structure and is convenient for installation and disassembly. In this embodiment, the number of anode plates is set to nine, which is different from the existing structure of seven anode plates, effectively reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of the electrode module of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the electrode module of the utility model from the first perspective;

[0019] Figure 3 for Figure 2 Section view in the AA direction;

[0020] Figure 4 This is a schematic structural diagram of the electrode module of the utility model from a second viewing angle;

[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0025] An embodiment of the present invention provides an electrode module for electrolyzing wastewater, referring to Figures 1 to 3 , comprising a plurality of cathode plates 11 stacked in sequence, an insulating plate 21 being arranged between two adjacent cathode plates 11; an insulating bolt 22 for fixing the cathode plate 11 and the insulating plate 21 is passed through between the cathode plate 11 and the insulating plate 21; a plurality of cathode plates 11 are respectively provided with connecting ears 111 at the first ends, the connecting ears 111 are connected in series through the first conductive sheet 12, the connecting ears 111 at the head and tail ends are respectively connected to a cathode electrode rod 13, and the two cathode electrode rods 13 are connected in series through the cathode conductive plate 14;

[0026] A mounting groove is provided on one side of any of the insulating plates 21 away from the first end of the cathode plate 11, and an anode plate 21 is installed in the mounting groove. A discharge gap is provided between the anode plate 21 and the adjacent cathode plate 11; second conductive sheets 22 extend from both sides of the anode plate 21, and a plurality of the second conductive sheets 22 are connected in series via a conductive rod 23, and an anode electrode rod 24 is connected at both ends of the conductive rod 23, and a plurality of the anode electrode plates are connected in series via an anode conductive plate 25.

[0027] This embodiment improves the structure of the existing electrode module. First, the cathode plate 11 and the insulating plate 21 are stacked and installed in sequence, and then the insulating bolts 22 are passed through in sequence and locked from both ends, so that the cathode plate 11 and the insulating plate 21 can be firmly combined together, which is convenient for installation and disassembly; at the same time, the insulating plate 21 is provided with a groove for installing the anode plate 21, and the anode plate 21 is inserted in the groove and located between the two cathode plates 11, forming a structure in which the anode plate 21 and the cathode plate 11 are arranged at intervals. There is also a discharge gap between the anode plate 21 and the cathode plate 11 to ensure the normal discharge of the electrode module and electrolyze the wastewater. The cathode plate 11, the anode plate 21 and the insulating plate 21 can also be fixed together by passing the insulating bolts 22, so that the anode plate 21, the cathode plate 11 and the insulating plate 21 are locked and fixed by the insulating bolts 22 to form a modular integrated structure, which is convenient for installation and use. In this embodiment, the number of anode plates is set to nine, which is different from the existing structure of seven anode plates, effectively reducing the manufacturing cost.

[0028] Further, refer to Figure 4 The cathode conductive plate 14 includes two L-shaped cathode conductive plates 141 and a rectangular cathode conductive plate 142. The first sides of the two L-shaped cathode conductive plates 141 clamp the two cathode electrode rods 13, and the second sides of the two L-shaped cathode conductive plates 141 are respectively connected to the two ends of the rectangular cathode conductive plate 142.

[0029] The cathode electrode rod 13 is provided with a cathode fixing flat position that fits the L-shaped cathode conductive plate 141. The first side of the L-shaped cathode conductive plate 141 is connected to the cathode fixing flat position through a conductive bolt, and the second side of the L-shaped cathode conductive plate 141 is connected to the rectangular cathode conductive plate 142 through a conductive bolt.

[0030] In the present embodiment, two cathode electrode rods 13 are provided, and the connecting ears 111 of the cathode electrode plates are connected in series in sequence through the first conductive plate 12, and the connecting ears 111 at the head and tail ends are respectively connected to the cathode electrode rods 13, and the overall structural consistency is strong. Then, the two cathode electrode rods 13 are connected through the cathode conductive plate 14, so that the cathode as a whole can be connected and conducted. By connecting the cathode electrode rod 13 to the external negative power supply, the conduction of the negative electrode of the electrode module can be completed; further, the cathode electrode rod 13 in the present embodiment is provided with a fixed flat position connected to the cathode electrode plate, and the fixed flat position is clamped in the middle by the first sides of the two L-shaped cathode electrode plates and locked by conductive bolts, which can not only ensure the stability of the connection position, but also facilitate installation and disassembly. The second sides of the two L-shaped cathode electrode plates are connected through the rectangular cathode electrode plate to complete the series connection of the overall cathode, and the structure is simpler and the cost is lower.

[0031] Furthermore, the number of the anode electrode rods 24 is four, and the four anode electrode rods 24 are arranged in a matrix at the four corners of the electrode module, which can ensure that the overall structure is more stable.

[0032] The anode conductive plates 25 include two groups of L-shaped anode conductive plates 251 and one rectangular anode conductive plate 252. The two groups of L-shaped anode conductive plates 251 are respectively used to connect two anode electrode rods 24 in series. Any group of L-shaped anode conductive plates 251 includes two L-shaped anode conductive plates 251. The first sides of the two L-shaped anode conductive plates 251 clamp the corresponding two anode electrode rods 24. The two groups of L-shaped anode conductive plates 251 are connected through the rectangular anode conductive plates 252.

[0033] The anode electrode rod 24 is provided with an anode fixing flat position that fits the L-shaped anode conductive plate 251. The first side of the L-shaped anode conductive plate 251 is connected to the anode fixing flat position through a conductive bolt, and the second side of the L-shaped anode conductive plate 251 is connected to the rectangular anode conductive plate 252 through a conductive bolt.

[0034] Similarly, in the present embodiment, a second conductive sheet 22 is extended from both sides of each anode plate 21, and the conductive sheets on both sides are respectively connected in series through a conductive rod 23. In this way, there are two conductive rods 23. In the present embodiment, each conductive rod 23 is respectively connected to an anode electrode rod 24 at both ends, and then the four anode electrode rods 24 are connected in series through the anode conductive plate 25 to complete the series connection of the entire anode.

[0035] In this embodiment, the anode electrode plate is also provided with a fixed flat position for connecting with the L-shaped anode conductive plate 251, and then the first sides of two L-shaped anode conductive plates 251 are clamped in the middle and fixed by conductive bolts, and then the two groups of L-shaped anode conductive plates 251 are connected in series through the rectangular anode conductive plate 252 to complete the overall series connection, which is the same as the series connection method of the cathode, and the conductive plates of the anode and cathode are set on the same side of the electrode module, with a compact and simple structure, more convenient installation and disassembly, and lower cost.

[0036] Furthermore, the anode conductive plate 25 and the cathode conductive plate 14 are both configured as copper plate structures. Copper has low resistivity, good and very stable conductivity, and its conductivity will not change significantly even in harsh environments such as high temperature and high humidity, thereby ensuring stable current transmission and long-term, efficient and stable use of the electrode module.

[0037] Furthermore, the first conductive sheet 12 and the second conductive sheet 22 are both configured as titanium sheet structures. Titanium has excellent hardness, heat resistance, electrical and thermal conductivity, and strong corrosion resistance, which can ensure the service life of the electrode module.

[0038] Furthermore, the anode plate 21 is configured as a boron-doped diamond electrode plate, which has high mechanical strength, chemical inertness, excellent electrochemical properties, and strong corrosion resistance. Even under harsh pH conditions, it can still maintain electrode activity and stability. It can efficiently generate hydroxyl radicals at the same current density, so that organic matter can be quickly removed. It can work stably for a long time in a strong corrosive medium. Compared with other electrochemical oxidation electrodes (such as PbO2, dimensionally stable electrode (DSA), IrO2, etc.), it has a higher mineralization effect on organic pollutants in water.

[0039] Furthermore, a polytetrafluoroethylene sleeve 26 is sleeved on the outer side of the anode conductive rod. Polytetrafluoroethylene has excellent corrosion resistance and can effectively protect the anode conductive plate 25.

[0040] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An electrode module for electrolysis of wastewater, characterized in that: It comprises a plurality of cathode plates stacked in sequence, an insulating plate is arranged between two adjacent cathode plates; an insulating bolt is passed between the cathode plate and the insulating plate for fixing the cathode plate and the insulating plate; a connecting ear is respectively arranged at the first end of the plurality of cathode plates, the connecting ears are connected in series through a first conductive sheet, the connecting ears at the head and tail ends are respectively connected to a cathode electrode rod, and the two cathode electrode rods are connected in series through a cathode conductive plate; A mounting groove is provided on one side of any of the insulating plates away from the first end of the cathode plate, an anode plate is installed in the mounting groove, and a discharge gap is provided between the anode plate and the adjacent cathode plate; second conductive sheets are respectively extended on both sides of the anode plate, a number of the second conductive sheets are connected in series through a conductive rod, both ends of the conductive rod are respectively connected to an anode electrode rod, and a number of the anode plates are connected in series through the anode conductive plates.

2. The electrode module for electrolysis of wastewater according to claim 1, characterized in that: The cathode conductive plate includes two L-shaped cathode conductive plates and one rectangular cathode conductive plate, the first sides of the two L-shaped cathode conductive plates clamp the two cathode electrode rods, and the second sides of the two L-shaped cathode conductive plates are respectively connected to the two ends of the rectangular cathode conductive plate.

3. The electrode module for electrolysis of wastewater according to claim 2, characterized in that: The cathode electrode rod is provided with a cathode fixing flat position which fits the L-shaped cathode conductive plate. The first side of the L-shaped cathode conductive plate is connected to the cathode fixing flat position via a conductive bolt, and the second side of the L-shaped cathode conductive plate is connected to the rectangular cathode conductive plate via a conductive bolt.

4. The electrode module for electrolysis of wastewater according to claim 1, characterized in that: The number of the anode electrode rods is four, and the four anode electrode rods are arranged in a matrix.

5. The electrode module for electrolysis of wastewater according to claim 4, characterized in that: The anode conductive plates include two groups of L-shaped anode conductive plates and one rectangular anode conductive plate. The two groups of L-shaped anode conductive plates are respectively used to connect two anode electrode rods in series. Any group of L-shaped anode conductive plates includes two L-shaped anode conductive plates. The first sides of the two L-shaped anode conductive plates clamp the corresponding two anode electrode rods. The two groups of L-shaped anode conductive plates are connected through the rectangular anode conductive plates.

6. The electrode module for electrolysis of wastewater according to claim 5, characterized in that: The anode electrode rod is provided with an anode fixing flat position fitted with the L-shaped anode conductive plate, the first side of the L-shaped anode conductive plate is connected to the anode fixing flat position through a conductive bolt, and the second side of the L-shaped anode conductive plate is connected to the rectangular anode conductive plate through a conductive bolt.

7. The electrode module for electrolysis of wastewater according to claim 1, characterized in that: The anode conductive plate and the cathode conductive plate are both configured as copper plate structures.

8. The electrode module for electrolysis of wastewater according to claim 1, characterized in that: The first conductive sheet and the second conductive sheet are both configured as titanium sheet structures.

9. The electrode module for electrolysis of wastewater according to claim 1, characterized in that: The anode plate is configured as a boron-doped diamond electrode plate.

10. The electrode module for electrolysis of wastewater according to claim 1, characterized in that: The outer side of the anode conductive rod is sheathed with a polytetrafluoroethylene sleeve.

Images