Water distributor, water collector, electrode assembly and circulating water electrochemical treatment device

Abstract

The application discloses a water distributor, a water collector, an electrode assembly and a circulating water electrochemical treatment device, wherein the water distributor and the water collector are both insulating box bodies, the insulating box body has a cavity, the insulating box body comprises first and second insulating plates which are parallel to each other, and a plurality of holes are formed in the first and second insulating plates; one side corner of the lower part of the insulating box body is provided with a first water inlet to serve as the water distributor, and one side corner of the upper part of the insulating box body is provided with a first water outlet to serve as the water collector. The water distributor and the water collector with hardness are used to replace the existing ion membrane, so that a support skeleton is not needed, an inter-electrode distance can be smaller, the water flow speed can be increased by using the water distributor, dirt is not easily attached in the electrolysis chamber, the treatment efficiency and the electric energy utilization rate can be improved, and the energy consumption can be reduced.

Description

Technical Field

[0001] This invention belongs to the field of electrochemical treatment technology for cooling circulating water, and particularly relates to a water distributor, a water collector, an electrode assembly, and an electrochemical treatment device for circulating water. Background Technology

[0002] Currently, in the field of electrochemistry for descaling and scale prevention in cooling circulating water, to improve descaling efficiency, Israeli literature (Desalination, 2010, 263: 285; Journal of Membrance Science, 2013, 445: 88) proposed a new treatment method that uses a cation exchange membrane to separate the electrolysis chamber into an anode chamber and a cathode chamber, achieving an energy utilization rate of 50%. However, because ion exchange membranes are soft and lack support, an external support frame is required, making it difficult to achieve small-pitch electrochemical equipment, which is not conducive to improving descaling efficiency and reducing energy consumption. In particular, existing commercially available ion exchange membranes have weak fouling resistance, and when used in industrial circulating water with complex water quality, they are prone to clogging. After a certain period of operation, acid washing is required, and the acid washing time may be longer than the operating time, which greatly reduces the efficiency of the equipment. This makes the practicality of membrane-based electrochemical equipment unsatisfactory and difficult to promote its application in this industry. Summary of the Invention

[0003] To address the above technical problems, this invention provides a water collector, a water distributor, an electrode assembly, and a circulating water electrochemical treatment device. By replacing the existing ion exchange membrane with a water distributor that has hardness, not only is there no need for an additional support frame, allowing for a smaller electrode spacing, but the water distributor also increases the water flow velocity. In the electrolysis chamber, because the water flows perpendicular to the electrode plates, the electrode plates are less prone to fouling, thereby improving treatment efficiency and energy utilization while reducing energy consumption.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows: The first aspect of the present invention provides a water distributor for electrochemical treatment of circulating water, wherein the water distributor is disposed between a cathode plate and an anode plate, the water distributor is an insulating box having a cavity, the insulating box including a first insulating plate and a second insulating plate parallel to each other, and both the first insulating plate and the second insulating plate having a plurality of holes; The insulating box has a first water inlet at one of its lower corners.

[0005] Preferably, a plurality of first partitions and second partitions are arranged perpendicular to the first insulating plate inside the cavity. The first partitions divide the cavity into a plurality of sub-cavities. One end of the first partition is connected to one end of the second partition. Adjacent second partitions and the second partitions and the first side of the insulating box form a channel connecting to the first water inlet. At the first water inlet, the length of the second partitions away from the first side is longer than that of the second partitions closer to the first side.

[0006] Preferably, the thickness of the first insulating plate and the second insulating plate is 0.1-20mm, more preferably 0.5-2mm; the inner distance between the first insulating plate and the second insulating plate is 0.1-50mm, more preferably 1-5mm.

[0007] Preferably, the hole is a circular hole or a polygonal hole such as a rectangular hole, a triangular hole, or a rhomboid hole.

[0008] Preferably, the diameter of the circular hole or the side of the polygonal hole is 0.1-100 mm, more preferably 1-10 mm; the side distance of the hole is 0.1-50 mm, more preferably 0.1-10 mm.

[0009] A second aspect of the present invention provides a water collector for electrochemical treatment of circulating water. The water collector is an insulating box having a cavity. The insulating box includes a first insulating plate and a second insulating plate that are parallel to each other. Both the first insulating plate and the second insulating plate have multiple holes. The insulating box has a first water outlet at one of its upper corners.

[0010] Preferably, a plurality of first partitions and second partitions are arranged perpendicular to the first insulating plate inside the cavity. The first partitions divide the cavity into a plurality of sub-cavities. One end of the first partition is connected to one end of the second partition. Adjacent second partitions and the second partitions and the first side of the insulating box form a channel connecting to the first water outlet. At the first water outlet, the length of the second partition away from the first side is longer than that of the second partition closer to the first side.

[0011] Preferably, the thickness of the first insulating plate and the second insulating plate is 0.1-20mm, more preferably 0.5-2mm; the inner distance between the first insulating plate and the second insulating plate is 0.1-50mm, more preferably 1-5mm.

[0012] Preferably, the hole is a circular hole, a rectangular hole, a triangular hole, or a polygonal hole such as a rhombus.

[0013] Preferably, the diameter of the circular hole or the side of the rectangular hole is 0.1-100 mm, more preferably 1-10 mm; the side distance of the hole is 0.1-50 mm, more preferably 0.1-10 mm.

[0014] A third aspect of the present invention provides an electrode assembly for electrochemical treatment of circulating water, comprising a first electrode plate, a second electrode plate, and the aforementioned water collector. The first electrode plate and the second electrode plate are both mesh or perforated electrode plates, and the first electrode plate and the second electrode plate have the same polarity. The first electrode plate and the second electrode plate form an electrode plate frame, and the water collector is disposed within the electrode plate frame. The first insulating plate, the second insulating plate, the first electrode plate, and the second electrode plate are parallel.

[0015] Preferably, the distance between the surface of the water collector and the adjacent electrode plate is 0-50 mm, and more preferably 1-5 mm.

[0016] A fourth aspect of the present invention provides a circulating water electrochemical treatment device, comprising a plurality of anode components, cathode components and a water distributor for circulating water electrochemical treatment, wherein the water distributor is disposed between the anode components and the cathode components.

[0017] Because the present invention adopts the above technical solution, it has the following advantages and positive effects compared with the prior art: The water distributor provided by this invention is an insulating box, which replaces the ion exchange membrane. The insulating box has a certain degree of support, eliminating the need for an additional support frame, thus enabling a smaller electrode spacing, thereby increasing the operating current and reducing the operating voltage. Furthermore, the insulating box has a cavity, and its two sides are a first insulating plate and a second insulating plate with multiple holes. A first water inlet is located at one corner of the bottom of the insulating box. The water distributor is positioned between the cathode and anode plates in the electrolysis chamber, with the first and second insulating plates parallel to the electrode plates. The water to be treated enters the cavity through the first water inlet and then flows out through the holes in the first and second insulating plates, passing through the electrode plates and being processed before exiting the equipment. This causes the acidic anolyte water and the alkaline catholyte water to flow in opposite directions, preventing the water treated by the cathode plate and the anode plate from mixing and avoiding the generation of H₂. + and OH - Ions reacting together cause internal friction and reduce efficiency.

[0018] The present invention also provides a water collector, which has the same structure as the water distributor. The water collector has a first water outlet at the upper side corner of the insulating box. The water collector is set between two layers of the same polarity mesh or perforated electrode plates, and the two layers of the same polarity electrode plates form an electrode plate frame. The water collector can collect the water treated by the electrodes on both sides and let it flow out of the electrolysis chamber from the first water outlet. Attached Figure Description

[0019] Figure 1 These are schematic diagrams of the water distributor, water collector, and electrode assembly in embodiments 1-3 of the present invention; Figure 2 This is a cross-sectional schematic diagram of the water distributor according to Embodiment 1 of the present invention; Figure 3 This is a cross-sectional schematic diagram of the water collector according to Embodiment 2 of the present invention; Figure 4 This is a schematic diagram of the circulating water electrochemical treatment device of Embodiment 4 of the present invention; Figure 5 This is a schematic diagram of the water flow in the circulating water electrochemical treatment device of Embodiment 4 of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 1-Water distributor; 101-First insulating plate; 102-Second insulating plate; 103-First water inlet; 104-First partition; 105-Second partition; 106-Channel; 1061-First channel; 1062-Second channel; 1063-Third channel; 107-First sub-chamber; 108-Second sub-chamber; 109-Third sub-chamber; 110-Fourth sub-chamber; 111-Hole; 112-First side; 2-Water collector; 201-First insulating plate; 202-Second insulating plate; 203-First outlet; 204-First partition; 205-Second partition; 206-Channel; 2061-First channel; 2062-Second channel; 2063-Third channel; 207-First sub-chamber; 208-Second sub-chamber; 209-Third sub-chamber; 210-Fourth sub-chamber; 211-Hole; 212-First side; 3-Electrode assembly; 301-First electrode plate; 302-Second electrode plate; 4-Box body; 5-Cathode water collector; 6-Anode water collector; 7-Electrolysis chamber; 8-Second outlet; 9-Drain outlet; 10-Slot; 11-Anode assembly; 12-Cathode assembly; 13-Bracket; 14-Overflow outlet. Detailed Implementation

[0021] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a water distributor, water collector, electrode assembly, and circulating water electrochemical treatment device according to the present invention. The advantages and features of the present invention will become clearer from the following description.

[0022] In the description of this invention, it should be noted that the terms "left," "right," etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0024] Example 1 See Figure 1-2 A water distributor 1 is used for the electrochemical treatment of circulating water. The water distributor 1 is disposed between a cathode plate and an anode plate. The water distributor 1 is an insulating box with a cavity. The insulating box includes a first insulating plate 101 and a second insulating plate 102 that are parallel to each other. The first insulating plate 101 and the second insulating plate 102 are arranged parallel to the electrode plates. The first insulating plate 101 and the second insulating plate 102 each have a plurality of holes 111. A first water inlet 103 is provided at one side corner of the lower part of the insulating box, and the lower part of the insulating box is based on the orientation of the water distributor when it is installed in the electrochemical treatment device.

[0025] The water distributor 1 is placed between the cathode plate and the anode plate in the electrolysis chamber. The first insulating plate 101 and the second insulating plate 102 are parallel to the electrode plates. The water to be treated enters the cavity through the first inlet 103 and then flows out through the holes 111 of the first insulating plate 101 and the second insulating plate 102 respectively. After passing through the electrode plates and being treated by the electrode plates, the water enters the water collector 2 and flows out of the equipment. This avoids the mixing of the water treated by the cathode plate and the water treated by the anode plate, so that the acidic anode water and the alkaline cathode water flow in two opposite directions respectively, avoiding the reaction of the generated H+ and OH- ions, which would cause internal consumption and reduce efficiency.

[0026] Furthermore, the insulating housing has a certain degree of support, eliminating the need for an additional support frame, thus allowing for a smaller electrode spacing, thereby increasing the operating current and reducing the operating voltage. Additionally, the insulating plate composing the insulating housing is smoother than fibrous filter cloth or ion-exchange membranes, making it less prone to scale adhesion, thus reducing the descaling frequency compared to ion-exchange membranes. Moreover, using the water distributor 1 in this embodiment, scale adhering to the water collector 2 and cathode plate 3 can be removed by changing the polarity between the cathode and anode plates; that is, changing the polarity of the cathode and anode plates, replacing the original cathode plate with an anode plate and vice versa, without interrupting operation while removing scale from the water collector 2. Compared to ion-exchange membranes, it does not require stopping operation for acid washing and descaling. Therefore, the water distributor of this embodiment is more practical than ion-exchange membranes.

[0027] Since the water distributor 1 is set between the cathode and anode plates, and a slot for fixing the electrode plates is usually set in the electrolysis chamber, with the electrode plates inserted into the slot, the water distributor 1 in this embodiment can also be a first insulating plate 101 and a second insulating plate 102 inserted into the slot to form an insulating box.

[0028] For large-sized electrolysis equipment, the surface area of ​​the first insulating plate 101 and the second insulating plate 102 of the water distributor 1 is increased, and the cavity volume is increased to avoid the formation of partial dead zones. This ensures that the water entering the cavity is evenly distributed from the longitudinal surfaces of the first insulating plate 101 and the second insulating plate 102. In a preferred embodiment, such as... Figure 2 As shown, multiple first partitions 104 and second partitions 105 are arranged perpendicular to the first insulating plate 101 in the cavity. The first partitions 104 divide the cavity into multiple sub-cavities. One end of the first partition 104 is connected to one end of the second partition 105. The first partitions 104 and the second partitions 105 can be integrally formed or their ends can be fixedly connected. Adjacent second partitions 105 and the second partitions 105 and the first side 112 of the insulating box form a channel 106 connecting to the first water inlet 103. At the first water inlet 103, the second partitions 105 away from the first side 112 are longer than the second partitions 105 close to the first side 112.

[0029] Preferably, such as Figure 2As shown, the first partition 104 and the second partition 105 are vertically connected. The second partition 105 is parallel to the first side 112. The first partition 104 divides the chamber of the water distributor 1 into a first sub-chamber 107, a second sub-chamber 108, a third sub-chamber 109, and a fourth sub-chamber 110. The second partition 105, which is close to the first side 112, forms the first channel 1061 (leftmost) with the first side 112. Furthermore, from left to right, adjacent first partitions 104 form the second channel 1062 and the third channel 106. 3. Water flows into the first sub-chamber 107 through the first inlet 103 and the first channel 1061, into the second sub-chamber 108 through the first inlet 103 and the second channel 1062, into the third sub-chamber 109 through the first inlet 103 and the third channel 1063, and into the fourth sub-chamber 110 through the first inlet 103. At the first inlet 103, from left to right, the lengths of the first side 112 and the second partition 105 increase sequentially, forming a stepped structure at the first inlet 103.

[0030] In some embodiments, the insulating board constituting the water distributor 1 can be a plastic board, fiberglass board, carbon fiber board, etc., made of PP (polypropylene), PVC (polyvinyl chloride), PE (polyethylene), PMMA (polymethyl methacrylate), CA, PU (polyurethane), PC (polycarbonate), PET (polyethylene terephthalate), PS (polystyrene), ABS (acrylonitrile-butadiene-styrene copolymer), PVDF (polyvinylidene fluoride), PTFE (polytetrafluoroethylene), polysulfone, etc., or a ceramic board or bakelite, metal board, etc. (conductors or non-water-resistant materials are lined with plastic to achieve their insulation and hydrolysis resistance properties).

[0031] The thicknesses of the first insulating plate 101 and the second insulating plate 102 are 0.1-20 mm, and the inner distance between the first insulating plate 101 and the second insulating plate 102 is 0.1-50 mm. The inner distance between the first insulating plate 101 and the second insulating plate 102 is the distance between the relative planes of the first insulating plate 101 and the second insulating plate 102 in the cavity. In order to further increase the power efficiency, the thicknesses of the first insulating plate 101 and the second insulating plate 102 are preferably 0.5-2 mm, and the inner distance between the first insulating plate 101 and the second insulating plate 102 is 1-5 mm.

[0032] The holes 111 on the first insulating plate 101 and the second insulating plate 102 can be regular or irregular holes 111, and can be circular holes 111 or rectangular, rhomboid or other polygonal holes 111. Preferably, the holes 111 are circular holes 111, triangular holes 111, rectangular holes 111 or square holes 111. The diameter of the circular hole 111 or the side of the polygonal hole 111 is 0.1-100mm. More preferably, the diameter of the circular hole 111 or the side of the polygonal hole 111 is 1-10mm. The edge distance of the hole 111 is 0.1-50mm. The edge distance of the circular hole 111 is the distance between arcs tangent to the circle. Further, the edge distance of the hole 111 is 0.1-10mm.

[0033] Example 2 like Figure 1 and Figure 3 A water collector 2 is used for the electrochemical treatment of circulating water. It is set in an electrode frame composed of double-layer mesh or hole-shaped electrodes of the same polarity and is used to collect the water treated by the electrode plates and discharge it out of the electrolysis chamber.

[0034] The water collector 2 is also an insulating box with a cavity. The insulating box includes a first insulating plate 201 and a second insulating plate 202 that are parallel to each other. Both the first insulating plate 201 and the second insulating plate 202 have multiple holes 211. A first water outlet 203 is provided at one side corner of the upper part of the insulating box, and the upper part of the insulating box is based on the orientation of the water collector when it is installed in the electrochemical treatment device.

[0035] The insulating housing of the water collector 2 can also be formed by inserting the first insulating plate 201 and the second insulating plate 202 into a slot.

[0036] After being treated by the cathode plate or anode plate, the water to be treated in the electrolysis chamber enters the cavity of the water collector 2 through the holes 211 of the first insulating plate 201 and the second insulating plate 202, and is discharged from the electrolysis chamber after exiting the water outlet.

[0037] For large-sized electrolysis equipment, the surface area of ​​the first insulating plate 201 and the second insulating plate 202 of the water distributor are increased, and the cavity volume is increased to ensure uniform water flow in the longitudinal direction and avoid the formation of dead zones; in a preferred embodiment, such as Figure 3As shown, multiple first partitions 204 and second partitions 205 are arranged perpendicular to the first insulating plate 201 inside the cavity. The first partitions 204 divide the cavity into multiple sub-cavities. One end of the first partition 204 is connected to one end of the second partition 205. Adjacent second partitions 205 and the second partitions 205 and the first side 212 of the insulating box form a channel 206 connecting the first water outlet 203. At the first water outlet 203, the length of the second partition 205 away from the first side 212 is longer than that of the second partition 205 close to the first side 212.

[0038] Preferably, such as Figure 3 As shown, the first partition 204 and the second partition 205 are vertically connected. The second partition 205 is parallel to the first side 212. The first partition 204 divides the water distributor's chamber into a first sub-chamber 207, a second sub-chamber 208, a third sub-chamber 209, and a fourth sub-chamber 210. The second partition 205, which is closer to the first side 212, forms a first channel 2061 (the rightmost channel) with the first side 212. From right to left, adjacent first partitions 204 form a second channel 2062 and a third channel 2063. Water from the first sub-chamber 207 flows through the first channel 2061. 1. Water flows out from the first outlet 203, water from the second sub-chamber 208 flows out through the second channel 2062 and the first outlet 203, water from the third sub-chamber 209 flows out through the third channel 2063 and the first outlet 203, and water from the fourth sub-chamber 210 flows out through the first outlet 203. At the first outlet 203, from right to left, the lengths of the first side 212 and the second partition 205 increase sequentially, forming a stepped design at the first outlet 203. This design allows the water in the two chambers of the water collector to flow out evenly from the first outlet 203, avoiding dead corners.

[0039] In some embodiments, the insulating board constituting the water collector 2 can be a plastic board, fiberglass board, carbon fiber board, etc., made of PP (polypropylene), PVC (polyvinyl chloride), PE (polyethylene), PMMA (polymethyl methacrylate), CA, PU (polyurethane), PC (polycarbonate), PET (polyethylene terephthalate), PS (polystyrene), ABS (acrylonitrile-butadiene-styrene copolymer), PVDF (polyvinylidene fluoride), PTFE (polytetrafluoroethylene), polysulfone, etc., or a ceramic board or bakelite, metal board, etc. (conductors or water-sensitive materials are lined with plastic to achieve their insulation and hydrolysis resistance properties).

[0040] The thickness of the first insulating plate 201 and the second insulating plate 202 is 0.1-20mm, and the inner distance between the first insulating plate 201 and the second insulating plate 202 is 0.1-50mm. The inner distance between the first insulating plate 201 and the second insulating plate 202 is the distance between the relative planes of the first insulating plate 201 and the second insulating plate 202 in the cavity. In order to further increase the power efficiency, the thickness of the first insulating plate 201 and the second insulating plate 202 is preferably 0.5-2mm, and the inner distance between the first insulating plate 201 and the second insulating plate 202 is 1-5mm.

[0041] The holes 211 on the first insulating plate 201 and the second insulating plate 202 can be regular or irregular holes 211, and can be circular holes 211 or polygonal holes 211. Preferably, the holes 211 are circular holes 211, triangular holes 211, rectangular holes 211, or square holes 211. The diameter of the circular hole 211 or the side of the polygonal hole 211 is 0.1-100mm. More preferably, the diameter of the circular hole 211 or the side of the polygonal hole 211 is 1-10mm. The edge distance of the hole 211 is 0.1-50mm. The edge distance of the circular hole 211 is the distance between arcs tangent to the circle. Further, the edge distance of the hole 211 is 0.1-10mm.

[0042] Example 3 like Figure 1 As shown, an electrode assembly 3 for electrochemical treatment of circulating water includes a first electrode plate 301, a second electrode plate 302, and a water collector as described in Example 2. Both the first electrode plate 301 and the second electrode plate 302 are mesh or perforated electrode plates, and the first electrode plate 301 and the second electrode plate 302 have the same polarity. The first electrode plate 301 and the second electrode plate 302 can be both cathode plates or both anode plates. The first electrode plate 301 and the second electrode plate 302 form an electrode plate frame. The water collector 2 is set inside the electrode plate frame, and the first insulating plate 201, the second insulating plate 202, the first electrode plate 301 and the second electrode plate 302 are parallel.

[0043] Typically, in an electrolysis chamber, slots for fixing electrode plates are provided on both sides of the chamber. In this embodiment, for example... Figure 4 As shown, the first electrode plate 301 and the second electrode plate 302 can be inserted into the slot 10, and the first electrode plate 301 and the second electrode plate 302 can be formed into an electrode plate frame using the bracket 13, and the water collector 2 can be installed in the electrode plate frame.

[0044] In this embodiment, the first electrode plate 301 and the second electrode plate 302 can be either an anode plate or a cathode plate. When they are anode plates, the electrode assembly is an anode assembly, and when they are cathode plates, the electrode assembly is a cathode assembly.

[0045] Preferably, the distance between the surface of the water collector and the adjacent electrode plate is 0-50 mm, and more preferably 1-5 mm.

[0046] The first electrode plate 301 and the second electrode plate 302 can be mesh-like titanium-based noble metal electrode plates, titanium-based noble metal graphene electrode plates, titanium-based graphene electrode plates, or graphite plates, or they can be mesh-like conductive metal plates such as carbon steel plates, titanium plates, stainless steel plates, or galvanized steel plates.

[0047] Example 4 An electrochemical treatment device for circulating water includes multiple anode components 11 and cathode components 12 for electrochemical treatment of circulating water according to Embodiment 3, and a water distributor 1 according to Embodiment 1. The water distributor 1 is disposed between the anode components 11 and the cathode components 12.

[0048] Specifically, see Figure 4 The circulating water electrochemical treatment device includes a corrosion-resistant tank 4, which has three chambers. The two side chambers are cathode water collection chambers 5 and anode water collection chambers 6, and the middle chamber is an electrolysis chamber 7. The lower part of the electrolysis chamber 7 has a second water inlet (not shown in the figure). The cathode water collection chamber 5 and the anode water collection chamber 6 each have a second water outlet 8, and the cathode water collection chamber 5 and the anode water collection chamber 6 each have a sewage outlet 9. A slot 10 is provided at the end of the electrolysis chamber 7. The first and second insulating plates of the water collector 2 and the water distributor 1 are inserted into the slot 10. The first and second insulating plates form an insulating box 4, which forms the water collector 2 or the water distributor 1. Two layers of cathode plates, the slot 10, and the support form a cathode plate frame. A water collector 2 is installed in the cathode plate frame to form a cathode assembly 12. Two layers of anode plates, the slot 10, and the support form an anode plate frame. The water collector 2 is installed in the anode plate frame to form an anode assembly 11. The first outlet of the water collector 2 on the anode assembly 11 faces the anode water collector 2, and the first outlet of the water collector 2 on the anode assembly 11 faces the cathode water collector 2. An overflow port 14 is provided on the slot plate of the slot 10. The first outlet of the water collector 2 is connected to the overflow port 14. The water distributor 1 is inserted between the cathode assembly 12 and the anode assembly 11.

[0049] like Figure 5As shown, in the electrochemical treatment device of this embodiment, due to the pressure of the water flow, the water to be treated enters the electrolysis chamber 7 from the second inlet and enters the cavity of the water distributor 1 through the first inlet 103. The water in the cavity of the water distributor 1 is evenly distributed on the longitudinal surface of the water distributor 1 and flows to the cathode assembly 12 and the anode assembly 11 through the holes of the insulating plates on both sides, respectively. The water treated by the cathode plate or anode plate enters the cavity of the water collector 2 through the holes of the insulating plates on both sides of the water collector 2 and flows out through the first outlet 203 of the water collector 2, entering the cathode water collection chamber 5 and the anode water collection chamber 6. Using the electrochemical treatment device of this embodiment, the water treated by the cathode plate and the water treated by the anode plate flow in two opposite directions, avoiding the generation of OH groups by the cathode plate. - H generated by the anode plate + The reaction between the two electrodes causes internal friction and reduces efficiency. Furthermore, it increases the water flow rate within the electrolysis chamber 7, preventing scale buildup from adhering to the electrodes, collector 2, or distributor 1. As treatment time increases, scale may precipitate or adhere to the cathode and anode collectors 2; free scale is discharged through the drain port 9, while adhered scale can be removed. Therefore, the ion-membrane-free water electrolysis treatment device provided in this embodiment significantly increases treatment efficiency compared to current ion-membrane electrolysis equipment.

[0050] The electrochemical treatment device in this embodiment is merely an example and is not limited to the device structure shown in this embodiment.

[0051] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A water distributor for the electrochemical treatment of circulating water, characterized in that, The water distributor is an insulating box with a cavity. The insulating box includes a first insulating plate and a second insulating plate that are parallel to each other. Both the first and second insulating plates have multiple holes. A first water inlet is provided at one side corner of the lower part of the insulating box; Multiple first and second partitions are arranged perpendicular to the first insulating plate inside the cavity. The first partitions divide the cavity into multiple sub-cavities. One end of the first partition is connected to one end of the second partition. Adjacent second partitions and the second partitions form a channel with the first side of the insulating box to communicate with the first water inlet. At the first water inlet, the second partitions away from the first side are longer than the second partitions closer to the first side.

2. The water distributor according to claim 1, characterized in that, The thickness of the first insulating plate and the second insulating plate is 0.1-20mm respectively; the inner distance between the first insulating plate and the second insulating plate is 0.1-50mm.

3. The water distributor according to claim 2, characterized in that, The thickness of the first insulating plate and the second insulating plate is 0.5-2mm respectively; the inner distance between the first insulating plate and the second insulating plate is 1-5mm.

4. The water distributor according to claim 1, characterized in that, The hole can be circular or polygonal.

5. The water distributor according to claim 4, characterized in that, The diameter of the circular hole or the side of the polygonal hole is 0.1-100mm; the distance between the edges of the hole is 0.1-50mm.

6. The water distributor according to claim 5, characterized in that, The diameter of the circular hole or the side of the polygonal hole is 1-10 mm; the distance between the edges of the hole is 0.1-10 mm.

7. A water collector for the electrochemical treatment of circulating water, characterized in that, The water collector is an insulating box with a cavity. The insulating box includes a first insulating plate and a second insulating plate that are parallel to each other. Both the first and second insulating plates have multiple holes. The insulating box has a first water outlet at one of its upper corners.

8. The water collector according to claim 7, characterized in that, Multiple first and second partitions are arranged perpendicular to the first insulating plate inside the cavity. The first partitions divide the cavity into multiple sub-cavities. One end of the first partition is connected to one end of the second partition. Adjacent second partitions and the second partitions form a channel connecting the first water outlet with the first side of the insulating box. At the first water outlet, the length of the second partition away from the first side is longer than that of the second partition closer to the first side.

9. The water collector according to claim 7, characterized in that, The thickness of the first insulating plate and the second insulating plate is 0.1-20mm respectively; the inner distance between the first insulating plate and the second insulating plate is 0.1-50mm.

10. The water collector according to claim 9, characterized in that, The thickness of the first insulating plate and the second insulating plate is 0.5-2mm respectively; the inner distance between the first insulating plate and the second insulating plate is 1-5mm.

11. The water collector according to claim 7, characterized in that, The hole can be circular or polygonal.

12. The water collector according to claim 11, characterized in that, The diameter of the circular hole or the side of the polygonal hole is 0.1-100mm; the distance between the edges of the hole is 0.1-50mm.

13. The water collector according to claim 12, characterized in that, The diameter of the circular hole or the side of the polygonal hole is 1-10 mm; the distance between the edges of the hole is 0.1-10 mm.

14. An electrode assembly for electrochemical treatment of circulating water, characterized in that, The device includes a first electrode plate, a second electrode plate, and a water collector as described in any one of claims 7-13. The first electrode plate and the second electrode plate are both mesh or perforated electrode plates, and the first electrode plate and the second electrode plate have the same polarity. The first electrode plate and the second electrode plate form an electrode plate frame, and the water collector is disposed within the electrode plate frame. The first insulating plate, the second insulating plate, the first electrode plate, and the second electrode plate are parallel.

15. The electrode assembly for electrochemical treatment of circulating water according to claim 14, characterized in that, The distance between the surface of the water collector and the adjacent electrode plate is 0-50mm.

16. The electrode assembly for electrochemical treatment of circulating water according to claim 15, characterized in that, The distance between the surface of the water collector and the adjacent electrode plate is 1-5 mm.

17. A circulating water electrochemical treatment device, characterized in that, It includes an anode electrode assembly and a cathode electrode assembly for electrochemical treatment of circulating water as described in any one of claims 14-16, and a water distributor as described in any one of claims 1-6, wherein the water distributor is disposed between the anode electrode assembly and the cathode electrode assembly.

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