Integrated electrochemical treatment device

Abstract

The utility model discloses an integrated electrochemical treatment device which comprises an integrated water treatment electrolysis unit, a water distribution system and a power supply system, the integrated water treatment electrolysis unit comprises an electrode unit module, and the electrode unit module comprises at least one pair of cathode plate and anode plate in a first direction; the water distribution system comprises a main water treatment device body, the positive electrode and the negative electrode of the power supply are respectively connected with the anode plate and the cathode plate from the two ends of the main water treater body to form a power supply loop. The device is highly integrated and modularized, is easy to produce and install in batches, and can be flexibly arranged according to different process requirements and actual operation scenes.

Description

Technical Field

[0001] This application relates to the field of water treatment technology, specifically to an integrated electrochemical treatment device. Background Technology

[0002] Electrochemical treatment, as an effective means of degrading organic matter, can directly break the chemical bonds of organic matter, transforming it into harmless or low-toxicity small molecules. It offers advantages such as thorough mineralization of pollutants and no secondary pollution, which is of profound significance for promoting sustainable development and green production. Compared with other traditional electrodes, boron-doped diamond thin-film electrodes (BDD electrodes), with their superior oxidation potential and high-efficiency processing performance, can achieve comprehensive oxidation of all organic matter, making them the preferred electrode material. The core of electrochemical treatment technology lies in the electrode material and structural design; electrolysis efficiency is also affected by factors such as current density, electrode spacing, and electrode area. In practical engineering projects, it is necessary to flexibly adjust the number of electrode modules and the electrode area within the device according to different application scenarios and processing efficiency targets to adapt to different voltage and current requirements, meet the degradation needs of organic matter under various flow conditions and at different concentrations, and is crucial for energy saving and efficiency improvement.

[0003] Existing electrochemical water treatment devices still suffer from low integration and insufficient flexibility during the treatment process. Utility Model Content

[0004] This application provides an integrated electrochemical processing device, which aims to solve the problems of low integration and insufficient flexibility of existing electrochemical processing devices, so as to adapt to different processing efficiency requirements.

[0005] This application provides an integrated electrochemical treatment device, including an integrated water treatment electrolysis unit, a water distribution system, and a power supply system.

[0006] The integrated water treatment electrolysis unit includes an electrode unit module, which includes at least one pair of cathode plates and an anode plate in a first direction.

[0007] Water distribution system, including the main water treatment unit;

[0008] The electrode unit module is located inside the main water processor body, and the positive and negative terminals of the power supply are connected to the anode plate and the cathode plate from both ends of the main water processor body to form a power supply circuit.

[0009] As an optional embodiment, the water distribution system also includes an inlet, an outlet, a cover plate, a positive terminal and a negative terminal. The main water processor body has a pressure-bearing shell and cover plates at both ends. The pressure-bearing shell is provided with an inlet and an outlet, and the cover plates at both ends are respectively provided with a positive terminal and a negative terminal. The positive terminal of the power supply system is connected to the anode plate through the positive terminal, and the negative terminal is connected to the cathode plate through the negative terminal.

[0010] As an optional embodiment, the water inlet and water outlet are respectively located at the bottom and top sides of both ends of the main water processor body, or at the bottom and top of the end covers.

[0011] As an optional embodiment, the main water processor body can be placed horizontally or vertically.

[0012] As an optional embodiment, in the first direction, there are multiple cathode plates and anode plates, which are arranged at intervals layer by layer, and adjacent cathode plates and anode plates are connected by conductive plugs.

[0013] As an optional embodiment, the integrated water treatment electrolysis unit includes multiple electrode unit modules, in the second direction, each cathode plate is connected by a conductive plug and each anode plate is connected by a conductive plug.

[0014] As an optional embodiment, in the first direction, an electrode pad is provided between adjacent cathode plates and anode plates, and trapezoidal extensions are respectively staggered at both ends of the cathode plate and anode plate. The trapezoidal extensions and the electrode pads are provided with round holes, and the electrode pads are provided between two adjacent trapezoidal extensions. The conductive plug passes through the round holes of the trapezoidal extensions and the electrode pads of the same electrode plate to connect the electrode plates.

[0015] As an optional embodiment, the water distribution system also includes guide plates, which are respectively placed on both sides of the cathode plate and the anode plate.

[0016] As an optional embodiment, multiple integrated water treatment electrolysis units are connected in series or / and in parallel.

[0017] As an optional embodiment, the cathode and anode electrodes are 300mm × 82mm in size, and are made of silicon or niobium, with a substrate thickness ranging from 0.5 to 2 mm; the anode electrode is a double-sided coated electrode, and the cathode electrode is an uncoated electrode, with the electrode coating material being boron-doped diamond and a coating thickness of 2-10 micrometers.

[0018] The beneficial effects of this utility model are:

[0019] Compared with existing devices, the device of this application is highly integrated and modular, easy to mass-produce and install, and can be flexibly configured according to different process requirements and actual operating scenarios. It has significant advantages such as high processing efficiency, high fault tolerance, rapid maintenance without interfering with the overall system operation, and flexible adjustment to meet different process requirements and actual operating conditions. Attached Figure Description

[0020] To more clearly illustrate the embodiments and apparatus of this application, the present invention will be described in detail below with reference to the accompanying drawings, but this should not be construed as limiting the present invention.

[0021] Figure 1a This is a top cross-sectional view of an integrated electrochemical processing device according to this application;

[0022] Figure 1b This is a front cross-sectional view of an integrated electrochemical processing device according to this application;

[0023] Figure 2a This is a schematic diagram of the structure of the integrated water treatment electrolysis unit of this application when the number of electrode unit modules is three;

[0024] Figure 2b This is a schematic diagram of the structure of the integrated water treatment electrolysis unit of this application when the number of electrode unit modules is five;

[0025] Figure 2c This is a schematic diagram of the structure of the integrated water treatment electrolysis unit of this application when the number of electrode unit modules is seven;

[0026] Figure 3a This is a simulation diagram of the integrated water treatment electrolysis unit structure of this application;

[0027] Figure 3b This is a simulation flow pattern analysis diagram of the main structure of the integrated water treatment electrolysis unit in this application;

[0028] Figure 3c This is a simulation flow pattern diagram of the top-down structure of the integrated water treatment electrolysis unit of this application.

[0029] In the diagram: 1-Cover plate; 2-Positive terminal; 3-Negative terminal; 4-Main water processor body; 5-Conductive plug; 6-Cathode plate; 7-Anode plate; 8-Electrode pad; 9-Trapezoidal extension; 10-Outlet; 11-Inlet; 12-Guide plate; 13-Bolt. Detailed Implementation

[0030] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0031] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0032] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] This application provides an integrated electrochemical processing device, see [link to relevant documentation] Figure 1a , Figure 1b It includes an integrated water treatment electrolysis unit, a water distribution system, and a power supply system.

[0034] The integrated water treatment electrolysis unit includes an electrode unit module, which includes at least one pair of cathode plates 6 and anode plates 7 in a first direction.

[0035] The water distribution system includes the main water treatment unit 4;

[0036] The electrode unit module is located inside the main water processor body 4. The positive and negative terminals of the power supply are connected from both ends of the main water processor body 4 to the anode plate 7 and the cathode plate 6 to form a power supply circuit.

[0037] In one embodiment provided in this application, the water distribution system further includes an inlet 11, an outlet 10, a cover plate 1, a positive terminal 2, and a negative terminal 3. The main water processor body 4 has a pressure-bearing shell and cover plates 1 at both ends. The pressure-bearing shell is provided with an inlet 11 and an outlet 10. The cover plates 1 at both ends are respectively provided with a positive terminal 2 and a negative terminal 3. The positive terminal of the power supply system is connected to the anode plate 7 through the positive terminal 2, and the negative terminal is connected to the cathode plate 6 through the negative terminal 3.

[0038] Furthermore, all cover plates 1 are connected and locked using mounting flanges and bolts 13, facilitating the disassembly and maintenance of the water treatment electrode module. The positive and negative terminals are securely connected to the cover plates 1 using tightened hexagonal nuts. To ensure sealing and isolation, a flat washer, an isolation sleeve, a sealing ring, and an insulating gasket are sequentially placed between the fixing nut and the cover plate 1, thereby achieving effective isolation and sealing functions.

[0039] The socket between the pressure-bearing housing and the electrode unit module is a circle on the outside and a square on the inside. That is, multiple plates are arranged around the inner wall of the circular pressure-bearing housing, and the ends of each plate form a square socket to better fix the water treatment electrode assembly.

[0040] Alternatively, the pressure shell can be made of two materials: one is a stainless steel shell, and the other is a cylindrical shell made of fiber-wound fiberglass with a polyvinyl chloride (PVC) liner, which has significant advantages such as high strength, corrosion resistance and electrical insulation.

[0041] In one embodiment provided in this application, the inlet 11 and the outlet 10 are respectively located at the bottom and top sides of the main water processor body 4, or at the bottom and top of the end cover plates 1.

[0042] The bottom-in, top-out structure can remove the bubbles generated during the electrolysis process, preventing them from adhering to the electrode surface and weakening the electrolysis efficiency.

[0043] In one embodiment provided in this application, the main water processor body 4 is placed horizontally or vertically.

[0044] In one embodiment provided in this application, in a first direction, a plurality of cathode plates 6 and anode plates 7 are provided, and the cathode plates 6 and anode plates 7 are arranged at intervals layer by layer, and adjacent cathode plates 6 and anode plates 7 are connected by conductive plugs 5.

[0045] The number of layers m of the cathode plate 6 and the anode plate 7 can be flexibly set according to different treatment efficiencies. The m-layer plates divide the main flow channel into (m-1) flow channels, which are used to treat sewage in parallel.

[0046] In one embodiment provided in this application, the integrated water treatment electrolysis unit includes multiple electrode unit modules. In the second direction, each cathode plate 6 is connected by a conductive plug 5, and each anode plate 7 is connected by a conductive plug 5.

[0047] Please see Figure 1a In the orientation shown in the diagram, the first direction refers to the vertical direction, and the second direction refers to the horizontal direction. It is understandable that the first and second directions change depending on the orientation shown in the diagram.

[0048] In one embodiment provided in this application, in a first direction, an electrode pad 8 is disposed between adjacent cathode plates 6 and anode plates 7. Trapezoidal extensions 9 are staggered at both ends of the cathode plates 6 and anode plates 7, and both the trapezoidal extensions 9 and the electrode pad 8 have circular holes. The electrode pad 8 is disposed between two adjacent trapezoidal extensions 9. A conductive plug 5 passes through the circular holes of the trapezoidal extensions 9 and the electrode pad 8 of the same electrode plate to connect each electrode plate. The first electrode unit module, the second electrode unit module, ..., the nth electrode unit module are connected in series and energized through the trapezoidal extensions 9 and the electrode pad 8. The electrode pad 8 is made of titanium-clad copper.

[0049] Understandably, the number of electrode modules in the integrated water treatment electrolysis unit can be flexibly selected according to different actual application scenarios and specific requirements for processing efficiency, so as to adapt to different voltage and current requirements and thus effectively meet the degradation requirements of organic matter under various flow conditions and at different concentrations.

[0050] If we assume that each electrode unit module carries a voltage of V and a current of A, then for an integrated water treatment electrolysis unit, when there are two electrode unit modules, since the electrode unit modules are connected in series, its overall voltage is 2V and current is A; when there are three electrode unit modules, its overall voltage is 3V and current is A; and when there are n electrode unit modules, its overall voltage is nV and current is A.

[0051] like Figure 2a , Figure 2b , Figure 2c The diagram illustrates three combinations of electrode unit modules, each containing an integrated water treatment electrolysis unit. Assuming each electrode unit module carries a voltage of 20V and a current of 1000A, then: (The diagram is incomplete and requires further context to translate accurately.) Figure 2a As shown, when there are three electrode unit modules, the overall voltage carrying capacity is 60V (i.e., 20V × 3), and the current is 1000A; Figure 2b As shown, when the number of electrode unit modules is five, its overall carrying voltage is 100V (i.e., 20V × 5) and current is 1000A; Figure 2c As shown, when the number of electrode unit modules is seven, its overall carrying voltage is 140V (i.e., 20V×7) and current is 1000A.

[0052] The integrated water treatment electrolysis unit includes a first electrode unit module, a second electrode unit module, ..., an nth electrode unit module (n is the number of electrode unit modules). Based on the number of electrode unit modules, the integrated water treatment electrolysis unit can be divided into a first electrolysis zone, a second electrolysis zone, a third electrolysis zone, ..., an nth electrolysis zone, where the voltage in the electrolysis zone gradually decreases with the direction of water flow.

[0053] n electrode unit modules and m layers of electrode plates ultimately form (m-1) parallel electrolysis chambers and n series electrolysis chambers in the integrated water treatment electrolysis unit, which serve as backup systems for each other. The presence of multiple electrolysis chambers improves the fault tolerance and processing efficiency of the device.

[0054] like Figure 3a , Figure 3b , Figure 3cAs shown, the flow simulation of a three-module integrated electrochemical treatment device based on BDD electrode units was carried out using Ansys Discovery simulation tool. With a pressure difference of 0.2 MPa as the boundary condition, the water flow can maintain a stable and uniform flow state and smoothly pass through the electrode plate area, ensuring the efficient operation of the electrolysis process.

[0055] In one embodiment provided in this application, the water distribution system further includes a guide plate 12, which is disposed on both sides of the cathode plate 6 and the anode plate 7.

[0056] In one embodiment provided in this application, multiple integrated water treatment electrolysis units are connected in series and / or in parallel.

[0057] Specifically, the integrated water treatment electrolysis unit within the integrated electrochemical treatment device can be connected in the following three ways:

[0058] In the first connection method provided in this application, multiple integrated water treatment electrolysis units are connected in parallel in both the water circuit and the electrical circuit.

[0059] The integrated water treatment electrolysis unit can be individually powered off and repaired at any time. In the electrical circuit, all components connected in parallel with the unit under repair remain unaffected. In the water circuit, the flow rate of the integrated water treatment electrolysis unit connected in parallel increases.

[0060] In the second connection method provided in this application, multiple integrated water treatment electrolysis units are connected in series in both the water circuit and the electrical circuit.

[0061] By connecting them in series, a higher electrolysis voltage can be obtained, and more wastewater can be treated at the same time.

[0062] In the third type of connection, multiple integrated water treatment electrolysis units are connected in parallel in the water circuit and in series between each group, and multiple integrated water treatment electrolysis units are connected in parallel in the circuit.

[0063] The integrated water treatment electrolysis unit can be individually powered off and repaired at any time. In the circuit, components connected in parallel with the repaired component remain unaffected. In the water circuit, the flow rate of the integrated water treatment electrolysis unit connected in parallel increases, while the flow rate of another integrated water treatment electrolysis unit connected in series with this overall parallel module remains unchanged.

[0064] In the second form of the third connection method, multiple integrated water treatment electrolysis units are connected in parallel on the water circuit and in series between each group, and multiple integrated water treatment electrolysis units are connected in parallel on the circuit and in series between each group.

[0065] The integrated water treatment electrolysis unit can be individually powered off and repaired at any time. In the circuit, components connected in parallel with the repair unit, as well as another integrated water treatment electrolysis unit connected in series with this overall parallel module, can have their current parameters flexibly adjusted without interfering with the overall system operation. In the water path, the flow rate of the integrated water treatment electrolysis unit connected in parallel with it increases, while the flow rate of the other integrated water treatment electrolysis unit connected in series with this overall parallel module remains unchanged.

[0066] In one embodiment provided in this application, the cathode plate 6 and the anode plate 7 have electrode dimensions of 300mm × 82mm, are silicon-based or niobium-based, and have a substrate thickness ranging from 0.5 to 2 mm; the anode plate 7 is a double-sided coated electrode, and the cathode plate is an uncoated electrode. The electrode coating material is boron-doped diamond, and the coating thickness is 2-10 micrometers.

[0067] Optionally, a multi-component integrated electrochemical treatment device based on a BDD electrode unit module, which can be configured in series or parallel through pipeline connection, can be equipped with intelligent systems such as a current stabilization and automatic control system, current regulator, ammeter, voltmeter, flow meter, abnormal voltage protection device, alarm, or overall control panel.

[0068] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An integrated electrochemical treatment device, characterized in that, Includes integrated water treatment electrolysis unit, water distribution system, and power supply system. The integrated water treatment electrolysis unit includes an electrode unit module, which includes at least one pair of cathode plates (6) and anode plates (7) in a first direction. The water distribution system includes a main water processor body (4). The electrode unit module is located inside the main water processor body (4), and the positive and negative terminals of the power supply are connected from both ends of the main water processor body (4) to the anode plate (7) and the cathode plate (6) to form a power supply circuit.

2. The integrated electrochemical treatment device as described in claim 1, characterized in that, The water distribution system also includes an inlet (11), an outlet (10), a cover plate (1), a positive terminal (2), and a negative terminal (3). The main water processor body (4) has a pressure-bearing shell and cover plates (1) at both ends. The pressure-bearing shell is provided with an inlet (11) and an outlet (10). The cover plates (1) at both ends are provided with a positive terminal (2) and a negative terminal (3), respectively. The positive terminal of the power supply system is connected to the anode plate (7) through the positive terminal (2), and the negative terminal is connected to the cathode plate (6) through the negative terminal (3).

3. The integrated electrochemical treatment device as described in claim 2, characterized in that, The inlet (11) and outlet (10) are respectively located at the bottom and top of the sides of the main water processor body (4), or at the bottom and top of the end cover plates (1).

4. The integrated electrochemical treatment device as described in claim 3, characterized in that, The main water processor body (4) is placed horizontally or vertically.

5. The integrated electrochemical treatment device as described in claim 1, characterized in that, In the first direction, there are multiple cathode plates (6) and anode plates (7), which are arranged at intervals layer by layer, and adjacent cathode plates (6) and anode plates (7) are connected by conductive plugs (5).

6. The integrated electrochemical treatment device as described in claim 1, characterized in that, The integrated water treatment electrolysis unit includes multiple electrode unit modules. In the second direction, each cathode plate (6) is connected by a conductive plug (5), and each anode plate (7) is connected by a conductive plug (5).

7. An integrated electrochemical treatment device as described in claim 5 or 6, characterized in that, In the first direction, an electrode pad (8) is provided between adjacent cathode plates (6) and anode plates (7). Trapezoidal extensions (9) are provided at opposite ends of the cathode plates (6) and anode plates (7). The trapezoidal extensions (9) and the electrode pads (8) are provided with round holes. The electrode pads (8) are provided between two adjacent trapezoidal extensions (9). The conductive plug (5) passes through the round holes of each trapezoidal extension (9) and the electrode pads (8) of the same electrode plate to connect each electrode plate.

8. The integrated electrochemical treatment device as described in claim 1, characterized in that, The water distribution system also includes a guide plate (12), which is placed on both sides of the cathode plate (6) and the anode plate (7).

9. The integrated electrochemical treatment device as described in claim 1, characterized in that, Multiple integrated water treatment electrolysis units are connected in series or / and in parallel.

10. The integrated electrochemical treatment device as described in claim 1, characterized in that, The cathode plate (6) and anode plate (7) have electrode dimensions of 300 mm × 82 mm, and are made of silicon or niobium, with a substrate thickness ranging from 0.5 to 2 mm. The anode plate (7) is a double-sided coated electrode, and the cathode plate is an uncoated electrode. The electrode coating material is boron-doped diamond, with a coating thickness of 2 to 10 micrometers.

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