Electrochemical device and processing system

Abstract

The present invention discloses an electrochemical device and a treatment system, wherein the electrochemical device includes a housing, an anode assembly, a cathode assembly and a spoiler assembly, wherein the anode assembly, the cathode assembly and the spoiler assembly are all arranged in the inner cavity of the housing, and the cathode assembly includes an electrode layer, each electrode layer is arranged with cathode electrode wires arranged at intervals, and the electrode layer includes one layer or at least two layers. In the electrochemical device provided in the present application, the electrode layer provided by the cathode assembly is cathode electrode wires arranged at intervals, the adhesion of the sediment to the cathode electrode wire becomes smaller, and the gas generated on the electrode surface during the electrolysis process further weakens the adhesion of the sediment. At the same time, under the action of the guide assembly on the flow of the fluid in the inner cavity of the housing, the convective mass transfer and the disturbance of the liquid on the electrode surface are enhanced, and the surfaces of the cathode assembly and the anode assembly are cleaned, thereby improving the treatment efficiency of the electrochemical device.

Description

Technical Field

[0001] The present invention relates to the field of electrochemical technology, and in particular to an electrochemical device. The present invention also relates to a treatment system comprising the electrochemical device. Background Art

[0002] Electrochemistry is the study of the phenomena and changes occurring at the charged interface formed by two types of conductors. It is the science that studies the interactive conversion between electricity and chemical reactions. Chemical reactions are usually achieved through electrolysis in electrochemical devices. Electrolysis is the process of passing an electric current through an electrolyte solution (or molten electrolyte) to induce redox reactions at the cathode and anode. The conditions for electrolysis to occur are: ① Connect a DC power supply; ② Anode and cathode electrodes, with the cathode connected to the negative pole of the power supply and the anode connected to the positive pole of the power supply; ③ The two electrodes are in an electrolyte solution or molten electrolyte; ④ The two electrodes form a closed circuit.

[0003] In electrochemical water treatment applications, such as the electrolysis of saline water to produce sodium hypochlorite, electrochemical softening, electroflocculation, electroflotation, and electrochemical catalytic oxidation, the cathode is typically a two-dimensional plane or curved surface, allowing for regular cleaning of surface deposits. Common methods include mechanical cleaning, ultrasonic cleaning, mechanical vibration, electrode reversal, and acid cleaning. The presence of the cleaning device complicates the structure of the electrochemical device, resulting in a small electrode packing area per unit volume. This increased complexity can also create new contaminants, hindering the effective operation of the cathode and anode electrodes and leading to low electrochemical efficiency.

[0004] Therefore, how to improve the processing efficiency of electrochemical devices is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] An object of the present invention is to provide an electrochemical device having improved treatment efficiency. Another object of the present invention is to provide a treatment system including the electrochemical device.

[0006] To achieve the above-mentioned objectives, the present invention provides an electrochemical device, comprising a shell, an anode assembly, a cathode assembly and a spoiler assembly, wherein the anode assembly, the cathode assembly and the spoiler assembly are all arranged in the inner cavity of the shell, and the cathode assembly includes an electrode layer, each of which is arranged with cathode electrode wires arranged at intervals, and the electrode layer includes one layer or at least two layers.

[0007] Optionally, in the above electrochemical device, the electrode layer is arranged on the same side of the anode assembly, or the electrode layer is provided on two opposite sides of the anode assembly, or the electrode layer and the anode assembly are arranged in sequence and crosswise.

[0008] Optionally, in the above electrochemical device, the cathode assembly further comprises a fixing frame connected to opposite sides of the cathode electrode wire, the cathode electrode wire is detachably connected to the fixing frame, and the fixing frame is relatively fixed to the housing.

[0009] Optionally, in the above electrochemical device, the electrode layer is arranged in a ring shape or the electrode layer is arranged in a plate frame shape.

[0010] Optionally, in the above electrochemical device, the cathode electrode wire includes a strip-shaped wire structure arranged in a strip shape.

[0011] Optionally, in the above-mentioned electrochemical device, the cathode assembly also includes a fixed frame and a fixed grid, the fixed frame is a hollow structure, the fixed grids are located at opposite ends of the hollow structure, the two fixed grids connect the opposite ends of the strip-shaped filament structure, the fixed grids are provided with a plurality of mounting positions for fixing the cathode electrode wire, and the fixed frame is fixed relative to the outer shell.

[0012] Optionally, in the above electrochemical device, the cathode electrode wire includes a spiral filament structure arranged in a spiral shape.

[0013] Optionally, in the above-mentioned electrochemical device, the cathode assembly further includes a first connector, a second connector and a support member connecting the first connector and the second connector, the opposite ends of the spiral filamentary structure are respectively connected to the first connector and the second connector, the first connector, the support member and the second connector are fixed relative to the outer shell, and the spiral filamentary structure is in a stretched state.

[0014] Optionally, the above-mentioned electrochemical device further includes a support seat, a flow guide cover, a cathode terminal connected to the cathode assembly, and an anode terminal connected to the anode assembly. The cathode assembly is arranged on the outside of the anode assembly, the flow guide cover and the support seat are both located in the inner cavity of the shell, the water outlets of the anode assembly, the cathode assembly and the spoiler assembly are all located in the inner cavity of the flow guide cover, the spoiler assembly is installed at the primary liquid inlet on the bottom wall of the flow guide cover, the spoiler assembly is located below the anode assembly and the cathode assembly, the flow guide cover is installed at the top of the support seat, and the support seat is fixed relative to the shell.

[0015] Optionally, the above-mentioned electrochemical device further includes a water distribution chamber installed at the bottom end of the support seat, the water distribution chamber is provided with an opening with an inner cavity gradually expanding upward, the top of the deflector is provided with a first liquid outlet, the side wall of the bottom end of the deflector is provided with a secondary liquid inlet, and the secondary liquid inlet is located below the water spray port of the spoiler assembly, the first liquid outlet and the secondary liquid inlet are connected to the inner cavity of the deflector and the shell cavity between the outer wall of the deflector and the outer shell, the spoiler assembly is a Venturi nozzle, the Venturi nozzle is connected to the opening through a first inlet, the opening is connected to the chamber of the anode assembly through an anode chamber inlet, the top of the anode assembly is provided with an anode chamber outlet, and the shell cavity is connected to the negative pressure chamber of the Venturi nozzle through the second inlet of the Venturi nozzle.

[0016] Optionally, the above-mentioned electrochemical device further includes an aeration device arranged in the inner cavity of the shell, the shell is provided with an exhaust valve, a water inlet and a water outlet, the anode assembly is a plate-shaped electrode, the spoiler assembly is located directly below the anode assembly and the cathode assembly, and the water outlet of the spoiler assembly is facing the anode assembly and the cathode assembly, and the water inlet and the water outlet are respectively located at opposite ends of the shell.

[0017] Optionally, in the above electrochemical device, the diameter of the cathode electrode wire is 0.02 mm-2.0 mm.

[0018] A treatment system comprises a water inlet main pipe, a water outlet main pipe, a sewage main pipe, a support frame, and a plurality of electrochemical devices arranged in parallel on the support frame, wherein the electrochemical device is the electrochemical device according to any one of claims 1 to 12, and each of the housings is provided with a water inlet, a water outlet, and a sewage outlet, all of the water inlets are connected to the water inlet main pipe through independently provided water inlet regulating valves, the water outlets are connected to the water outlet main pipe, and the sewage outlets are connected to the sewage main pipe.

[0019] In the above technical solution, the electrochemical device provided by the present invention includes a shell, an anode assembly, a cathode assembly and a spoiler assembly. The anode assembly, the cathode assembly and the spoiler assembly are all arranged in the inner cavity of the shell. The cathode assembly includes an electrode layer, and each electrode layer is arranged with cathode electrode wires arranged at intervals. The electrode layer includes one layer or at least two layers.

[0020] As can be seen from the above description, in the electrochemical device provided by this application, the electrode layer provided in the cathode assembly is a spaced cathode electrode wire, which reduces the adhesion of the deposits to the cathode electrode wire, and the gas generated on the electrode surface during the electrolysis process further weakens the adhesion of the deposits. At the same time, the flow guide assembly, under the action of the fluid flowing around the inner cavity of the housing, strengthens the convective mass transfer and the disturbance of the liquid on the electrode surface, which has a cleaning effect on the surfaces of the cathode and anode assemblies. At the same time, without the need for a cleaning device, the effective area of the cathode and anode assemblies can be increased, and the processing efficiency of the electrochemical device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0022] Figure 1 A schematic structural diagram of an electrochemical device provided by an embodiment of the present invention;

[0023] Figure 2 A schematic structural diagram of another electrochemical device provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the structure of a processing system provided by an embodiment of the present invention;

[0025] Figure 4 A schematic structural diagram of a cathode assembly provided by an embodiment of the present invention;

[0026] Figure 5 A schematic structural diagram of another cathode assembly provided by an embodiment of the present invention;

[0027] Figure 6 for Figure 5 Schematic diagram of the structure of the cathode assembly after expansion.

[0028] in Figure 1-6 middle:

[0029] Electrochemical device 1, exhaust valve 1-1;

[0030] Cathode assembly 1-2, first connecting piece 1-2-1, first fixing hole 1-2-1-1, cathode electrode wire 1-2-2, second connecting piece 1-2-3, second fixing hole 1-2-3-1, hook 1-2-4, support piece 1-2-5, fixing frame 1-2-6, fixing grid 1-2-7;

[0031] Anode assembly 1-3;

[0032] Flow guide cover 1-4, first liquid outlet 1-4-1, secondary liquid inlet 1-4-2;

[0033] Spoiler assembly 1-5, first inlet 1-5-1, second inlet 1-5-2;

[0034] Shell 1-6, impurity discharge port 1-6-1, main drain port 1-6-2, anode chamber outlet 1-6-3, anode chamber inlet 1-6-4;

[0035] Anode terminals 1-7, cathode terminals 1-8;

[0036] Water distribution chamber 1-9, main liquid inlet 1-9-1;

[0037] Aeration device 1-10, sewage outlet 1-11, water inlet 1-12, water outlet 1-13;

[0038] Support frame 2, sewage main pipe 3, water outlet main pipe 4, water inlet regulating valve 5, water inlet main pipe 6. DETAILED DESCRIPTION

[0039] The core of the present invention is to provide an electrochemical device with improved processing efficiency. Another object of the present invention is to provide a processing system including the electrochemical device.

[0040] Regarding the directions: In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0041] In the invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation", "screw-on" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the invention according to the specific circumstances.

[0042] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and implementation methods.

[0043] Please refer to Figures 1 to 6 .

[0044] In a specific embodiment, the electrochemical device 1 provided in the specific embodiment of the present invention includes a shell 1-6, an anode assembly 1-3, a cathode assembly 1-2 and a spoiler assembly 1-5. The anode assembly 1-3, the cathode assembly 1-2 and the spoiler assembly 1-5 are all arranged in the inner cavity of the shell 1-6. The cathode assembly 1-2 includes an electrode layer, and each electrode layer is arranged with cathode electrode wires 1-2-2 arranged at intervals. The electrode layer includes one layer or at least two layers.

[0045] Specifically, an impurity discharge port 1-6-1 is provided at the bottom of the housing 1-6 for discharging impurities in the housing 1-6. A main drain port 1-6-2 is provided at the top of the side wall of the housing 1-6.

[0046] Preferably, the diameter of the cathode electrode wire 1-2-2 is 0.02 mm to 2.0 mm. Specifically, the diameter of the cathode electrode wire 1-2-2 is 0.1 mm, 0.5 mm, 1.0 mm, or 1.5 mm. Of course, in specific processing, a diameter of the cathode electrode wire 1-2-2 slightly less than 0.02 mm or slightly greater than 2.0 mm can also be used. Since the diameter of the wire electrode with a diameter of 0.02 mm to 2.0 mm can be ignored, it is called a one-dimensional structure electrode. Specifically, the cross-section of the cathode electrode wire 1-2-2 can be an elliptical or polygonal structure.

[0047] The cathode electrode wire 1-2-2 can be a metal part such as carbon steel, stainless steel, titanium, nickel, copper, etc. The cathode electrode wire 1-2-2 can be a base material of carbon steel, stainless steel, titanium, nickel, copper with a special surface coating, metal-coated plastic, etc.

[0048] During specific assembly, the electrode layers are arranged on the same side of the anode components 1-3. Figure 1 As shown, the cathode assembly 1-2 is disposed between the anode assembly 1-3 and the housing 1-6. The cathode layer may be disposed in a multi-layered annular shape.

[0049] In a specific embodiment, electrode layers are respectively provided on opposite sides of the anode assembly 1-3. In this case, the anode assembly 1-3 may be a hollow structure.

[0050] The electrode layers and anode assemblies 1-3 are arranged crosswise in sequence, wherein the number of electrode layers and anode assemblies 1-3 is determined according to actual needs and is not specifically limited in this application.

[0051] As can be seen from the above description, in the electrochemical device 1 provided in the specific embodiment of the present application, the electrode layer provided in the cathode assembly 1-2 comprises cathode electrode wires 1-2-2 arranged at intervals. The adhesion of deposits to the cathode electrode wires 1-2-2 is reduced, and the gas generated on the electrode surface during the electrolysis process further weakens the adhesion of the deposits. Simultaneously, the flow guide assembly, acting to circulate the fluid within the inner cavity of the housing 1-6, enhances convective mass transfer and the disturbance of the liquid on the electrode surface. This makes it difficult for contaminants to adhere to the electrode surfaces, thus cleaning the surfaces of the cathode assembly 1-2 and the anode assembly 1-3, thereby improving the processing efficiency of the electrochemical device 1.

[0052] The cathode assembly 1-2 further includes a fixing frame connected to opposite sides of the cathode electrode wire 1-2-2, the electrode wire and the fixing frame are detachably connected, and the fixing frame is relatively fixed to the housing 1-6. Preferably, the fixing frame and the housing 1-6 are detachably fixedly connected.

[0053] The electrode layer is arranged in a ring shape or in a plate-frame shape. For different processing purposes, the anode assembly 1-3 and the cathode assembly 1-2 of the device can be interchanged, that is, the cathode assembly 1-2 is located in the center, and the anode assembly 1-3 can have the same structure as the cathode assembly 1-2.

[0054] In a specific configuration, the cathode assemblies 1 - 2 may be arranged in an array, such as a matrix or a ring array.

[0055] The cathode electrode wire 1-2-2 includes a strip-shaped wire structure. The spacing between adjacent strip-shaped wire structures is equal or unequal. Specifically, the strip-shaped wire structure can be processed by straightening the conductive wire material.

[0056] In order to facilitate the installation and fixation of the cathode electrode wire 1-2-2, preferably, the cathode assembly 1-2 also includes a fixing frame 1-2-6 and a fixing grid 1-2-7. The fixing frame 1-2-6 is a hollow structure. The fixing grids 1-2-7 are located at opposite ends of the hollow structure. The two fixing grids 1-2-7 connect the opposite ends of the strip-shaped wire structure. The fixing frame 1-2-6 is fixed relative to the outer shell 1-6. Specifically, the fixing grid 1-2-7 clamps and fixes the cathode electrode wire 1-2-2 with a stainless steel plate. The fixing grid 1-2-7 is provided with a plurality of mounting positions for fixing the cathode electrode wire 1-2-2, separating the cathode electrode wire 1-2-2 according to a certain width. Specifically, one cathode electrode wire 1-2-2 is installed in each mounting position.

[0057] In one specific embodiment, the cathode electrode wire 1-2-2 includes a helical filament structure arranged in a spiral shape. Specifically, the cathode electrode wire 1-2-2 may be a coil spring structure. Preferably, the helical filament structure is in a stretched state. During assembly, the ends of the tension spring are fixed, and the cathode electrode wire 1-2-2 acts as a tension spring to set a predetermined tension. The spacing between two coils of the cathode electrode wire 1-2-2 is determined by the wire diameter.

[0058] By using a tension spring-type one-dimensional electrode array, when the total liquid inlet pressure is adjusted, the vibration state of the tension spring can be changed to form a mobile scanning electrode, which enhances the collision probability between the processed material and the electrode and improves the processing efficiency. At the same time, the elastic deformation is also conducive to the cleaning of the electrode surface.

[0059] The cathode assembly 1-2 also includes a first connector 1-2-1 and a second connector 1-2-3, and the opposite ends of the spiral filament structure are respectively connected to the first connector 1-2-1 and the second connector 1-2-3, and the first connector 1-2-1 and the second connector 1-2-3 are fixed relative to the outer shell 1-6. Specifically, the first connector 1-2-1 is provided with a first fixing hole 1-2-1-1 for connecting the first connector 1-2-1 to an external substance. The first fixing hole 1-2-1-1 is preferably multiple, and two adjacent first fixing holes 1-2-1-1 are arranged at equal intervals. The second connector 1-2-3 is provided with a second fixing hole 1-2-3-1 for connecting the second connector 1-2-3 to an external substance. The second fixing hole 1-2-3-1 is preferably multiple, and two adjacent second fixing holes 1-2-3-1 are arranged at equal intervals. Preferably, the first fixing hole 1-2-1-1 and the second fixing hole 1-2-3-1 are symmetrically arranged on opposite sides of the cathode assembly 1-2, so that when the cathode assembly 1-2 is assembled, there is no need to distinguish between the first connecting member 1-2-1 and the second connecting member 1-2-3, thereby improving assembly efficiency.

[0060] During assembly, the tension spring, made from spirally wound conductive wire from the cathode electrode wire 1-2-2, is suspended from two pre-processed, circularly arranged hooks 1-2-4. The two circular rings (respectively, the first connector 1-2-1 and the second connector 1-2-3) are then secured to the ends of a hollow cylinder (support 1-2-5), forming a uniformly arranged parallel array of tension springs. Multiple arrays of tension springs with varying diameters can be assembled to form a radial multilayer tension spring structure.

[0061] The cathode electrode wire 1-2-2 diameter refers to the diameter of the wire used to make the tension spring. After the spring is wound, the last two turns at each end are rotated 90 degrees, perpendicular to the tension spring, for suspension and tension.

[0062] The present application arranges a multi-layer tension spring array or a parallel wire array to form a three-dimensional structure with regularly arranged one-dimensional electrodes, which increases the effective surface area compared to the whole curved surface electrode. When the liquid to be treated passes through the inside of the three-dimensional structure electrode, the probability of collision with the electrode is increased, thereby improving the treatment efficiency and current efficiency.

[0063] like Figure 1 As shown, the electrochemical device 1 also includes a support base, a flow guide 1-4, a cathode terminal 1-8 connected to the cathode assembly 1-2, and an anode terminal 1-7 connected to the anode assembly 1-3. The flow guide 1-4 and the support base are all located in the inner cavity of the shell 1-6. The water spouts of the anode assembly 1-3, the cathode assembly 1-2, and the spoiler assembly 1-5 are all located in the inner cavity of the flow guide 1-4. The spoiler assembly 1-5 is located below the anode assembly 1-3 and the cathode assembly 1-2. The top of the flow guide 1-4 is provided with a first liquid outlet 1-4-1, and the spoiler assembly 1-5 is mounted on the primary liquid inlet of the bottom wall of the flow guide 1-4. The flow guide 1-4 is mounted on the top of the support base, and the support base is fixed relative to the shell 1-6. Specifically, the flow guide 1-4 can be a hollow cylindrical structure. In order to facilitate the observation of the working state of the cathode assembly 1-2 and the anode assembly 1-3, preferably, the flow guide 1-4 and the shell 1-6 are provided with a transparent observation window to facilitate the user to observe the internal working state of the electrochemical device 1.

[0064] Specifically, the spoiler components 1-5 can be installed on the support seat.

[0065] Specifically, the helical filament structure of the cathode electrode wire 1-2-2 is attached to the first connector 1-2-1 and the second connector 1-2-3 via a hook 1-2-4. The cathode electrode wire 1-2-2 has specially crafted stainless steel hooks at both ends. The hooks 1-2-4 are attached to the first connector 1-2-1 and the second connector 1-2-3, which can be circular hoops bent from stainless steel sheets. The first connector 1-2-1 at the upper end is connected to the cathode terminal 1-8, and the second connector 1-2-3, connected to the hook 1-2-4 at the lower end, can be attached to the shroud 1-4. The shroud 1-4 can be a hollow cylinder made of non-conductive material and installed vertically.

[0066] The electrochemical device 1 provided in the present application also includes a water distribution chamber 1-9, and the guide cover 1-4 is installed at the top of the water distribution chamber 1-9. Specifically, the water distribution chamber 1-9 can be installed at the bottom end of the support seat. The water distribution chamber 1-9 is provided with an opening whose inner cavity gradually expands upward. The spoiler assembly 1-5 is a Venturi nozzle. The Venturi nozzle is connected to the opening through the first inlet 1-5-1, and the opening is connected to the chamber of the anode assembly 1-3 through the anode chamber inlet 1-6-4.

[0067] Specifically, a secondary liquid inlet 1-4-2 is provided on the sidewall at the bottom end of the shroud 1-4, and is located below the water outlet of the spoiler assembly 1-5. The first liquid outlet 1-4-1 and the secondary liquid inlet 1-4-2 connect the inner cavity of the shroud 1-4 with the shell cavity between the outer wall of the shroud 1-4 and the outer shell 1-6. An anode chamber outlet 1-6-3 is provided at the top end of the anode assembly 1-3. Liquid from the outside of the shroud 1-4 on the shell enters the inside of the shroud 1-4 through the secondary liquid inlet 1-4-2 and connects to the negative pressure chamber of the venturi nozzle through the second inlet 1-5-2 of the venturi nozzle.

[0068] Specifically, during assembly, the top of the housing 1-6 is provided with an end cap, and the top of the deflector 1-4 is mounted on the end cap. A hollow cylindrical anode is provided in the center of the top end cap, the lower end of which is mounted on a base. Specifically, at least one venturi nozzle and the anode chamber inlet 1-6-4 are provided on a support base. The first inlet 1-5-1 and the anode chamber inlet 1-6-4 can share the water distribution chamber 1-9 at the bottom of the base. Of course, the anode chamber inlet 1-6-4 can also be provided independently of the liquid inlet channel of the first inlet 1-5-1.

[0069] The bottom end of the housing 1-6 is equipped with a main liquid inlet 1-9-1. The liquid to be treated enters through this inlet and enters the Venturi nozzle inlet and / or the anode chamber inlet 1-6-4 at the water distribution chamber 1-9. The Venturi nozzle, mounted on a hollow cylindrical base, has a secondary water inlet. Four-fifths of the liquid from the cathode chamber outlet flows downward along the outside of the flow deflector 1-4 and enters the Venturi nozzle through the secondary inlet 1-5-2. One-fifth of the liquid enters the Venturi nozzle, with a portion discharged from the anode chamber outlet 1-6-3 and a portion discharged from the cathode chamber outlet. The ratio of the anode and cathode chamber outflow rates can be adjusted to suit different application needs. Under the Venturi action, the final nozzle discharge volume reaches five times the amount of liquid entering the Venturi nozzle from the water distribution chamber 1-9.

[0070] As mentioned above, during actual operation, 4 / 5 of the return liquid discharged from the Venturi nozzle carries the washed sediment and enters the array of cathode components 1-2 together with the liquid to be treated. The huge specific surface area of the sediment provides a deposition position outside the cathode component 1-2, thereby increasing the treatment effect.

[0071] The inlet water enters the reaction chamber through the Venturi tube. Under the premise that the inlet pipe diameter remains unchanged, the pressure is increased, and the inlet flow rate increases. According to the Bernoulli principle, when the high-pressure water flows through the Venturi tube, a negative pressure is formed. The negative pressure sucks in 4 times the inlet flow rate, and the final flow rate at the nozzle is 5 times the flow rate at the inlet. The large flow rate impacts the cathode electrode wire 1-2-2, changing the force impacting the cathode electrode wire 1-2-2, and the cathode electrode wire 1-2-2 thus changes its vibration state; the cathode electrode wire 1-2-2 vibrates up and down, and the relative movement speed between the cathode electrode wire 1-2-2 and the water flow changes.

[0072] The setting of the Venturi nozzle strengthens the convective mass transfer and the disturbance of the liquid on the electrode surface, which cleans the electrode surface and improves the processing efficiency.

[0073] In specific use, in order to implement more thorough cleaning, the total water inlet pressure can be increased regularly, and the primary water inlet pressure and flow rate of the Venturi nozzle can be increased, thereby forming a larger disturbance and flushing to clean the cathode assembly 1-2 and the anode assembly 1-3.

[0074] The Venturi principle amplifies the liquid inlet flow rate several times, and the liquid flow rate flowing through the one-dimensional electrode array is also amplified several times. Moreover, the flow rate can be adjusted by adjusting the distance between the guide tube and the central electrode, thereby achieving better flow effects at lower pressures and saving energy consumption of the conveying unit.

[0075] A portion of the sediment particles participating in the reflux gradually grow in the reflux cycle, and when they move downward along the outer surface of the guide covers 1-4, they settle to the bottom, enter the sediment material bin, and are finally discharged out of the system.

[0076] If the anode assembly 1-3 has the same structure as the cathode assembly 1-2, the probability of pollutants colliding with the anode increases, and the efficiency of the catalytic oxidation treatment on the surface of the anode assembly 1-3 increases.

[0077] Sediment particles in the reflux liquid enter the three-dimensional electrode array, providing an ultra-large surface area and more deposition sites for possible deposited substances.

[0078] New sediment particles are continuously deposited on the surface. Before they enter the return port, some larger particles are accelerated downward under the action of gravity and the thrust of the downward water flow, thus achieving the separation effect.

[0079] like Figure 1 As shown, the electrochemical device 1 is used as a softening core module, and the housings 1-6 can be sealed at both ends by using O-rings, and multiple electrochemical devices 1 can be installed in one container.

[0080] like Figure 2 The electrochemical device 1 provided in the present application further includes an aeration device 1-10 disposed within the inner cavity of a housing 1-6. The housing 1-6 is provided with an exhaust valve 1-1, a water inlet 1-12, and a water outlet 1-13. The anode assembly 1-3 is a plate-frame electrode, such as a rectangular frame or a positive-direction annular frame structure. The flow-disrupting assembly 1-5 is located directly below the anode assembly 1-3 and the cathode assembly 1-2, with the water outlet of the flow-disrupting assembly 1-5 facing the anode assembly 1-3 and the cathode assembly 1-2. The water inlet 1-12 and the water outlet 1-13 are located at opposite ends of the housing 1-6. Specifically, a sewage outlet 1-11 is provided at the bottom end of the housing 1-6.

[0081] like Figure 2 Figure 1 shows a schematic diagram of an embodiment of an electrochemical device 1 for electrocoagulation or electrooxidation. Anode assemblies 1-3 are elongated flat electrodes, and the cathode can also be a plate. This electrocoagulation module features left-side inlet and right-side outlet, with bottom sludge removal. The anode is flushed with high-flow water to prevent passivation, while the cathode utilizes a one-dimensional array of electrodes to prevent sediment from adhering. Therefore, electrode reversal and pulse current are not required, reducing investment and operating energy consumption.

[0082] The electrochemical device 1 described in this document is only a processing module, which can be standardized and installed in containers of different sizes. Specifically, the electrochemical device 1 can be used alone or in parallel.

[0083] The present application provides a treatment system comprising a water inlet manifold 6, a water outlet manifold 4, a sewage manifold 3, a support frame 2, and a plurality of electrochemical devices 1 arranged in parallel on the support frame 2. The electrochemical devices 1 are any of the electrochemical devices 1 described above. The specific structure of the electrochemical devices 1 has been described above, and the present application includes the aforementioned electrochemical devices 1 and similarly achieves the aforementioned technical effects.

[0084] Each shell is provided with a water inlet, a water outlet and a sewage outlet. All water inlets are connected to the water inlet main pipe 6 through an independently provided water inlet regulating valve 5, the water outlet is connected to the water outlet main pipe 4, and the sewage outlet is connected to the sewage main pipe 3. As mentioned above, the water inlet of the shell is Figure 1 The total liquid inlet 1-9-1 or Figure 2 The water inlet 1-12 is shown, and the water outlet of the shell is Figure 1 The main drain outlet 1-6-2 or Figure 2 The drain outlet 1-13 shown is the drain outlet of the shell. Figure 1 Impurity discharge port 1-6-1 or Figure 2 Sewage outlets 1-11 are shown.

[0085] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0086] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electrochemical device, characterized in that The invention comprises a shell (1-6), an anode assembly (1-3), a cathode assembly (1-2) and a spoiler assembly (1-5), wherein the anode assembly (1-3), the cathode assembly (1-2) and the spoiler assembly (1-5) are all arranged in the inner cavity of the shell (1-6), and the cathode assembly (1-2) comprises an electrode layer, each of which is provided with cathode electrode wires (1-2-2) arranged at intervals, and the electrode layer comprises one layer or at least two layers; It also includes a support seat, a flow guide cover (1-4), a cathode terminal (1-8) connected to the cathode assembly (1-2), and an anode terminal (1-7) connected to the anode assembly (1-3), wherein the cathode assembly (1-2) is sleeved on the outside of the anode assembly (1-3), the flow guide cover (1-4) and the support seat are both located in the inner cavity of the shell (1-6), the water spray ports of the anode assembly (1-3), the cathode assembly (1-2) and the spoiler assembly (1-5) are all located in the inner cavity of the flow guide cover (1-4), the spoiler assembly (1-5) is installed at the primary liquid inlet on the bottom wall of the flow guide cover (1-4), the spoiler assembly (1-5) is located below the anode assembly (1-3) and the cathode assembly (1-2), the flow guide cover (1-4) is installed at the top end of the support seat, and the support seat is fixed relative to the shell (1-6); The invention also includes a water distribution chamber (1-9) installed at the bottom end of the support seat, the water distribution chamber (1-9) is provided with an opening of the inner cavity gradually expanding upward, the top end of the guide cover (1-4) is provided with a first liquid outlet (1-4-1), the side wall of the bottom end of the guide cover (1-4) is provided with a secondary liquid inlet (1-4-2), and the secondary liquid inlet (1-4-2) is located below the water spray port of the spoiler component (1-5), the first liquid outlet (1-4-1) and the secondary liquid inlet (1-4-2) are connected to the inner cavity of the guide cover (1-4) and The shell cavity is between the outer wall of the deflector (1-4) and the outer shell (1-6); the spoiler assembly (1-5) is a Venturi nozzle; the Venturi nozzle is connected to the opening through a first inlet (1-5-1); the opening is connected to the chamber of the anode assembly (1-3) through an anode chamber inlet (1-6-4); an anode chamber outlet (1-6-3) is provided at the top of the anode assembly (1-3); and the shell cavity is connected to the negative pressure chamber of the Venturi nozzle through a second inlet (1-5-2) of the Venturi nozzle.

2. The electrochemical device according to claim 1, wherein The electrode layer is arranged on the same side of the anode assembly (1-3), or the electrode layer is respectively provided on two opposite sides of the anode assembly (1-3), or the electrode layer and the anode assembly (1-3) are arranged in sequence in a cross manner.

3. The electrochemical device according to claim 1, wherein The cathode assembly (1-2) further comprises a fixing frame connected to opposite sides of the cathode electrode wire (1-2-2), the cathode electrode wire (1-2-2) and the fixing frame are detachably connected, and the fixing frame is relatively fixed to the housing (1-6).

4. The electrochemical device according to claim 1, wherein The electrode layer is arranged in a ring shape or in a plate frame shape.

5. The electrochemical device according to claim 1, wherein The cathode electrode wire (1-2-2) comprises a strip-shaped wire structure arranged in a strip shape.

6. The electrochemical device according to claim 5, characterized in that The cathode assembly (1-2) further comprises a fixing frame (1-2-6) and a fixing grid (1-2-7); the fixing frame (1-2-6) is a hollow structure; the fixing grids (1-2-7) are located at opposite ends of the hollow structure; two fixing grids (1-2-7) connect opposite ends of the strip-shaped filament structure; the fixing grids (1-2-7) are provided with a plurality of mounting positions for fixing the cathode electrode wire (1-2-2); and the fixing frame (1-2-6) is fixed relative to the housing (1-6).

7. The electrochemical device according to claim 1, wherein The cathode electrode wire (1-2-2) comprises a spiral wire structure arranged in a spiral shape.

8. The electrochemical device according to claim 7, characterized in that The cathode assembly (1-2) further includes a first connector (1-2-1), a second connector (1-2-3) and a support member (1-2-5) connecting the first connector (1-2-1) and the second connector (1-2-3); the opposite ends of the spiral filament structure are respectively connected to the first connector (1-2-1) and the second connector (1-2-3); the first connector (1-2-1), the support member (1-2-5) and the second connector (1-2-3) are fixed relative to the outer shell (1-6); and the spiral filament structure is in a stretched state.

9. The electrochemical device according to claim 1, wherein The invention also includes an aeration device arranged in the inner cavity of the shell (1-6); the shell (1-6) is provided with an exhaust valve (1-1), a water inlet and a water outlet; the anode assembly (1-3) is a plate-shaped electrode; the flow-disrupting assembly (1-5) is located directly below the anode assembly (1-3) and the cathode assembly (1-2); the water outlet of the flow-disrupting assembly (1-5) faces the anode assembly (1-3) and the cathode assembly (1-2); and the water inlet and the water outlet are respectively located at opposite ends of the shell (1-6).

10. The electrochemical device according to any one of claims 1 to 9, characterized in that The diameter of the cathode electrode wire (1-2-2) is 0.02 mm to 2.0 mm.

11. A processing system, characterized in that The invention comprises a water inlet main pipe (6), a water outlet main pipe (4), a sewage main pipe (3), a support frame (2) and a plurality of electrochemical devices arranged in parallel on the support frame (2), wherein the electrochemical device is an electrochemical device according to any one of claims 1 to 10, and each of the shells (1 to 6) is provided with a water inlet, a water outlet and a sewage outlet, and all the water inlets are connected to the water inlet main pipe (6) through independently provided water inlet regulating valves (5), the water outlets are connected to the water outlet main pipe (4), and the sewage outlets are connected to the sewage main pipe (3).

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