Water purification device and water purification equipment

Abstract

The invention relates to a water purification device and water purification equipment. The water purification device comprises a first electrode assembly, a water guide part and a second electrode assembly, the first electrode assembly, the water guide part and the second electrode assembly are sequentially stacked in the first direction, the first electrode assembly is used for being connected with a negative electrode of an external power source, first electrode liquid flows in the first electrode assembly, and the second electrode assembly is used for being connected with a positive electrode of the external power source, and second electrode liquid flows in the second electrode assembly; an electric field is formed between the second electrode assembly and the first electrode assembly; the water flow guide part is located in the electric field, to-be-treated water flows in the water flow channel, the projection of the water flow channel on the surface perpendicular to the first direction extends in a zigzag mode, and the length of the water flow channel is increased in a zigzag mode, so that the contact area between the first electrode assembly and the to-be-treated water and the contact area between the second electrode assembly and the to-be-treated water are increased. The water purification efficiency of the to-be-treated water is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of water purification equipment, and in particular to a water purification device and water purification equipment. Background Art

[0002] With economic development and the improvement of living standards, consumers pay more attention to healthy water use and drinking water, and have higher and higher requirements for water use. Therefore, more and more consumers use water purification equipment to filter tap water before using or drinking it in their daily lives. At present, the filtration technology of mainstream water purification equipment is ultrafiltration and RO membrane reverse osmosis filtration type, but ultrafiltration is prone to clogging after long-term use. After clogging, ultrafiltration is difficult to clean and the replacement cost is high. RO reverse osmosis membrane has the problem that it is difficult to obtain materials, and long-term drinking of pure water filtered by RO reverse osmosis is prone to cause mineral loss in the human body.

[0003] With the development of electrosorption technology, electrosorption technology has been increasingly valued in the field of water purification. Electrosorption technology refers to obtaining fresh water resources by adsorbing salt ions in water. The principle is that the electrode plate material forms an electric field perpendicular to the electrode plate after being energized. The charged particles in the water to be treated are offset toward the electrode plate under the action of the electric field until the ions are adsorbed onto the electrode plate, thereby achieving desalination of the water to be treated. After the adsorption of the electrode plate reaches saturation, the power supply to the electrode plate is stopped and the positive and negative electrodes are short-circuited to allow the ions to return to the solution, thereby achieving regeneration of the electrode plate.

[0004] At present, the electrosorption technology is becoming more and more mature, from the initial use of carbon aerogel as an ion adsorption material, to carbon cloth as a material, and finally evolving into carbon-based materials. With the emergence of new electrode plate materials, many adsorption electrode plates made of conductive agents, active materials and other proportions have also appeared. However, the above electrode plates are all fixed electrode plates. The adsorption capacity of fixed electrode plates is limited. They need to go through a regeneration process to adsorb again, and continuous desalination cannot be achieved. Therefore, the mobile electrode plate electrosorption technology has been developed. Compared with fixed electrode plates, mobile electrode plates can desorb adsorbed salt ions outside the device to achieve continuous desalination. However, the contact area between traditional mobile electrode plates and the water to be treated is small, resulting in a low efficiency of the mobile electrode plates in adsorbing the water to be treated, affecting the water purification efficiency of the water purification equipment. Summary of the invention

[0005] Based on this, it is necessary to provide a water purification device and water purification equipment to address the problem that the contact area between the traditional flow electrode plate and the water to be treated is small, resulting in low efficiency of the flow electrode plate in adsorbing the water to be treated.

[0006] A water purification device comprises: a first electrode assembly, a water guide member and a second electrode assembly;

[0007] The first electrode assembly, the water guide and the second electrode assembly are stacked in sequence along a first direction, the first electrode assembly is used to be connected to the negative electrode of an external power source, and a first electrode liquid flows inside the first electrode assembly, the second electrode assembly is used to be connected to the positive electrode of the external power source, and a second electrode liquid flows inside the second electrode assembly, and an electric field is formed between the second electrode assembly and the first electrode assembly;

[0008] The water guide member is located in the electric field, and the water guide member, the first electrode assembly and the second electrode assembly are arranged to form a water flow channel, the water to be treated flows inside the water flow channel, and the projection of the water flow channel on the surface perpendicular to the first direction extends in a tortuous manner. Under the action of the electric field, cations in the water to be treated located inside the water flow channel can enter the first electrode liquid, and anions can enter the second electrode liquid.

[0009] In one embodiment, a first flow channel is provided inside the first electrode assembly, the first electrode liquid can flow along the first flow channel, and a projection of the first flow channel on a surface perpendicular to the first direction extends in a zigzag manner;

[0010] And / or, a second flow channel is provided inside the second electrode assembly, the second electrode liquid can flow along the second flow channel, and a projection of the second flow channel on a surface perpendicular to the first direction extends in a zigzag manner.

[0011] In one of the embodiments, the projection of the first flow channel on the water guide at least partially overlaps with the water flow channel;

[0012] And / or, a projection of the second flow channel on the water guide at least partially overlaps with the water flow channel.

[0013] In one embodiment, the first electrode assembly includes a first electrode plate, a first electrode liquid guide plate, and a cation exchange membrane, and the first electrode plate, the first electrode liquid guide plate, and the cation exchange membrane are stacked in sequence along the first direction;

[0014] The first electrode liquid flow guide plate is provided with a first flow guide hole penetrating along a first direction, the first electrode plate and the cation exchange membrane respectively cover two opposite ends of the first flow guide hole in the first direction, and the first electrode plate, the first electrode liquid flow guide plate, and the cation exchange membrane are mutually surrounded to form a first flow channel for circulating the first electrode liquid;

[0015] And / or, the second electrode assembly comprises a second electrode plate, a second electrode liquid guide plate, and an anion exchange membrane, and the anion exchange membrane, the second electrode liquid guide plate, and the second electrode plate are stacked in sequence along the first direction;

[0016] The second electrode liquid guide plate is provided with a second guide hole extending through the first direction, and the second electrode plate and the anion exchange membrane respectively cover the two opposite ends of the second guide hole in the first direction, and the second electrode plate, the second electrode liquid guide plate and the anion exchange membrane are mutually surrounded to form a second flow channel for circulating the second electrode liquid.

[0017] In one of the embodiments, the water guide member is provided with a water guide hole extending through the first direction, the water guide hole extends in a zigzag manner on the surface of the water guide member, the cation exchange membrane and the anion exchange membrane respectively cover the two opposite ends of the water guide hole in the first direction, and the cation exchange membrane, the anion exchange membrane and the water guide member are surrounded to form a water flow channel.

[0018] In one embodiment, a first step groove is formed on a side of the water guide member facing the first electrode assembly, and the cation exchange membrane is disposed in the first step groove;

[0019] And / or, a second step groove is formed on a side of the water guide member facing the second electrode assembly, and the anion exchange membrane is disposed in the second step groove.

[0020] In one embodiment, the water guide member is provided with a water inlet at one end in a second direction intersecting with the first direction, and a water outlet at the other end, and the water inlet and the water outlet are respectively connected to the opposite ends of the water guide hole in its longitudinal direction.

[0021] In one embodiment, the first electrode assembly further includes a first protective member, and the first protective member is disposed on a side of the first electrode plate away from the first electrode liquid guide plate;

[0022] And / or, the second electrode assembly further includes the second protective member, and the second protective member is arranged on a side of the second electrode plate away from the second electrode liquid guide plate.

[0023] In one embodiment, the water purification device further includes a first input pipe and a first output pipe, one end of the first input pipe and the first output pipe both extend out of the first protective member, and the other end both pass through the first protective member, the first electrode plate and the first guide hole;

[0024] A first input port is provided on the circumferential side wall of the first input pipe, and the first input port is located at one end of the first flow guide hole in its longitudinal direction. A first output port is provided on the circumferential side wall of the first output pipe, and the first output port is located at the other end of the first flow guide hole in its longitudinal direction.

[0025] In one embodiment, at least one of the first input pipe and the second input pipe also passes through the water guide member, the second protective member, the second electrode plate and the second electrode liquid guide plate, and the first input pipe and the first input pipe are integrally formed with the second protective member.

[0026] In one embodiment, the water purification device further includes a second input pipe and a second output pipe, one end of the second input pipe and the second output pipe both extend out of the first protective member, and the other end both pass through the first protective member, the first electrode plate, the first electrode liquid guide plate, the water guide member, the second protective member, the second electrode plate and the second guide hole;

[0027] A second input port is provided on the circumferential side wall of the second input pipe, and the second input port is located at one end of the second flow guide hole in its longitudinal direction. A second output port is provided on the circumferential side wall of the second output pipe, and the second output port is located at the other end of the second flow guide hole in its longitudinal direction.

[0028] In one embodiment, at least one of the second input tube and the second output tube is integrally formed with the second protective member.

[0029] In one embodiment, the water purification device further includes a second input pipe and a second output pipe, one end of the second input pipe and the second output pipe both extend out of the second protective member, and the other end both pass through the second protective member, the second electrode plate and the second guide hole;

[0030] A second input port is provided on the circumferential side wall of the second input pipe, and the second input port is located at one end of the second flow guide hole in its longitudinal direction. A second output port is provided on the circumferential side wall of the second output pipe, and the second output port is located at the other end of the second flow guide hole in its longitudinal direction.

[0031] In one embodiment, the first electrode plate extends out of the first protective member and the first electrode liquid guide plate at one end of the second direction intersecting the first direction;

[0032] And / or, the second protective member and the second electrode liquid guide plate extend out of the second electrode plate at one end of a second direction intersecting with the first direction.

[0033] In one embodiment, a first seal is provided between the first electrode plate and the first electrode liquid guide plate;

[0034] And / or, a second sealing member is provided between the first electrode liquid guide plate and the water guide member;

[0035] And / or, a third sealing member is provided between the water guide member and the second electrode liquid guide plate;

[0036] And / or, a fourth sealing member is provided between the second electrode liquid guide plate and the second electrode plate.

[0037] In one embodiment, the water purification device also includes bolts and nuts, a first fastening hole extending along a first direction is provided on the first electrode assembly, a second fastening hole extending along the first direction is provided on the water guide member, and a third fastening hole extending along the first direction is provided on the second electrode assembly, and the bolt passes through the first fastening hole, the second fastening hole and the third fastening hole and is threadedly connected to the nut.

[0038] In one embodiment, the first fastening holes include a plurality of holes, and the plurality of first fastening holes are arranged around the edge of the first electrode assembly;

[0039] The second fastening holes include a plurality of holes, the plurality of second fastening holes correspond to the plurality of first fastening holes one by one, and are arranged around the edge of the water guide member;

[0040] The third fastening holes include a plurality of holes, the plurality of third fastening holes correspond to the plurality of second fastening holes one by one, and are arranged around the edge of the second electrode assembly.

[0041] A water purification equipment comprises the water purification device as described in any one of the above items.

[0042] In the above-mentioned water purification device, the projection of the water flow channel on the surface perpendicular to the first direction extends in a tortuous manner, and the length of the water flow channel is increased in a tortuous manner, thereby increasing the contact area between the first electrode assembly and the second electrode assembly and the water to be treated, and the flow time of the water to be treated in the water flow channel will also increase accordingly. The longer the water to be treated flows in the water flow channel, the longer the ions in the water to be treated will be affected by the electric field, so that more cations of the water to be treated enter the first electrode liquid and more anions enter the second electrode liquid, thereby effectively improving the water purification efficiency of the water to be treated. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] FIG1 is a schematic diagram of the structure of a water purification device in some embodiments of the present application.

[0044] FIG. 2 is a schematic cross-sectional view of the water purification device in the embodiment of FIG. 1 .

[0045] FIG. 3 is a schematic cross-sectional view of the water guide member in the embodiment of FIG. 1 .

[0046] FIG. 4 is a schematic structural diagram of the water guide member in the embodiment of FIG. 1 .

[0047] FIG. 5 is a schematic diagram of the structure of the first electrode liquid guide plate or the second electrode liquid guide plate in the embodiment of FIG. 1 .

[0048] Description of reference numerals:

[0049] First electrode assembly 10; first flow channel 11; first electrode plate 12; first electrode liquid guide plate 13; cation exchange membrane 14; first guide hole 15; first protective member 16; first input pipe 17; first output pipe 18; first input port 19; first output port 20; first fastening hole 21;

[0050] Water guide member 30; water flow channel 31; water guide hole 32; first step groove 33; second step groove 34; water inlet 35; water outlet 36; second fastening hole 37;

[0051] Second electrode assembly 50; second flow channel 51; second electrode plate 52; second electrode liquid guide plate 53; anion exchange membrane 54; second guide hole 55; second protective member 56; second input pipe 57; second output pipe 58; second input port 59; second output port 60; third fastening hole 61;

[0052] A first sealing member 70; a second sealing member 71; a third sealing member 72; and a fourth sealing member 73;

[0053] The first direction is X; the second direction is Y; the third direction is Z. DETAILED DESCRIPTION

[0054] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0055] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0056] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0058] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0059] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0060] 1 , 2 and 3 , a water purification device provided in one embodiment of the present application includes a first electrode assembly 10, a water deflector 30 and a second electrode assembly 50. The first electrode assembly 10, the water deflector 30 and the second electrode assembly 50 are stacked in sequence along a first direction X. In actual use, the first direction X may be the direction of gravity, i.e., the direction from top to bottom in FIG. 2 , so that the first electrode assembly 10, the water deflector 30 and the second electrode assembly 50 can be pressed against each other, which facilitates assembly and improves the water purification effect.

[0061] Specifically, the first electrode assembly 10 is used to be connected to the negative electrode of an external power source, and a first electrode liquid flows inside. When the first electrode assembly 10 is connected to the negative electrode of the external power source, electrons of the external power source flow from the negative electrode to the second electrode assembly 50, thereby causing the first electrode assembly 10 and particles in the first electrode liquid inside the first electrode assembly 10 to be negatively charged.

[0062] The second electrode assembly 50 is used to be connected to the positive electrode of the external power supply, and a second electrode liquid flows inside. When the second electrode assembly 50 is connected to the positive electrode of the external power supply, the electrons in the second electrode assembly 50 and the second electrode liquid inside the second electrode assembly 50 flow toward the positive electrode of the external power supply, thereby making the second electrode assembly 50 and the particles inside the second electrode assembly 50 carry a positive charge.

[0063] When the first electrode assembly 10 and the second electrode assembly 50 are simultaneously connected to the negative electrode and the positive electrode of the external power supply, an electric field is formed between the second electrode assembly 50 and the first electrode assembly 10, the water guide 30 is located in the electric field, and the water guide 30, the first electrode assembly 10 and the second electrode assembly 50 are surrounded to form a water flow channel 31, and the water to be treated flows in the water flow channel 31. Among them, under the action of the electric field formed by the first electrode assembly 10 and the second electrode assembly 50, the cations in the water to be treated located in the water flow channel 31 can enter the first electrode liquid, and the anions can enter the second electrode liquid, so that the water to be treated is desalinated, and the flowing first electrode liquid and the second electrode liquid can realize continuous desalination of the water to be treated.

[0064] Among them, the projection of the water flow channel 31 on the surface perpendicular to the first direction X extends in a tortuous manner, so as to increase the length of the water flow channel 31 in a tortuous manner, thereby increasing the contact area between the first electrode assembly 10 and the second electrode assembly 50 and the water to be treated, and the flow time of the water to be treated in the water flow channel 31 will also increase accordingly. The longer the water to be treated flows in the water flow channel 31, the longer the ions in the water to be treated will be affected by the electric field, so that more cations enter the first electrode liquid and more anions enter the second electrode liquid, thereby effectively improving the water purification efficiency of the water to be treated.

[0065] In some embodiments of the present application, referring to FIG. 2, FIG. 3, FIG. 4 and FIG. 5, the first electrode assembly 10 includes a first electrode plate 12, a first electrode liquid flow guide plate 13, and a cation exchange membrane 14, and the first electrode plate 12, the first electrode liquid flow guide plate 13, and the cation exchange membrane 14 are stacked in sequence on one side of the water flow member along the first direction X. The first electrode plate 12 is used to be connected to the negative pole of the power supply, so that the first electrode plate 12 is negatively charged, and the first electrode liquid flows in the flow guide plate of the first electrode plate 12. The cations in the water to be treated are attracted by the negative charge of the first electrode plate 12, and enter the first electrode liquid flow guide plate 13 through the cation exchange membrane 14. Finally, the cations enter the first electrode liquid in the first electrode plate 12 and are discharged from the water purification device along with the first electrode liquid.

[0066] Among them, the first electrode liquid guide plate 13 is provided with a first guide hole 15 penetrating along the first direction X, and the first guide hole 15 extends in a zigzag manner on the surface of the first guide plate. The first electrode plate 12 and the cation exchange membrane 14 respectively cover the first guide hole 15 at two opposite ends in the first direction X, and the first electrode plate 12, the first electrode liquid guide plate 13, and the cation exchange membrane 14 are mutually surrounded to form a first flow channel 11 for circulating the first electrode liquid.

[0067] Further, the second electrode assembly 50 includes a second electrode plate 52, a second electrode liquid guide plate 53, and an anion exchange membrane 54, and the anion exchange membrane 54, the second electrode liquid guide plate 53, and the second electrode plate 52 are sequentially stacked on the other side of the water guide member 30 along the first direction X. That is, along the first direction X, the first electrode plate 12, the first electrode liquid guide plate 13, the cation exchange membrane 14, the water guide plate 30, the second electrode plate 52, the second electrode liquid guide plate 53, and the anion exchange membrane 54 are sequentially stacked from top to bottom in FIG.

[0068] Among them, the second electrode liquid guide plate 53 is provided with a second guide hole 55 penetrating along the first direction X, the second electrode plate 52 and the anion exchange membrane 54 respectively cover the two opposite ends of the second guide hole 55 in the first direction X, and the second electrode plate 52, the second electrode liquid guide plate 53, and the anion exchange membrane 54 are mutually surrounded to form a second flow channel 51 for circulating the second electrode liquid.

[0069] Furthermore, the water guide member 30 is provided with a water guide hole 32 extending through the first direction X, the water guide member 30 is provided with a water guide hole 32 extending through the first direction X, the water guide hole 32 extends in a zigzag manner on the surface of the water guide member 30, the cation exchange membrane 14 and the anion exchange membrane 54 respectively cover the opposite ends of the water guide hole 32 in the first direction X, and the cation exchange membrane 14, the anion exchange membrane 54, and the water guide member 30 are surrounded to form a water flow channel 31. Optionally, the width of the water guide hole 32 is 6.4 mm.

[0070] In this way, after the zigzag-extending water guide hole 32 forms the water flow channel 31 with the cation exchange membrane 14 and the anion exchange membrane 54, the water flow channel 31 will also present a zigzag-extending state. After the first electrode plate 12 and the second electrode plate 52 are energized, under the action of the electric field formed by the first electrode plate 12 and the second electrode plate 52, the cations in the water to be treated in the water flow channel 31 will pass through the cation exchange membrane 14 into the first electrode liquid in the first flow channel 11, and the anions will pass through the anion exchange membrane 54 into the second electrode liquid in the second flow channel 51, thereby achieving the effect of desalination of the water to be treated.

[0071] In some embodiments of the present application, after the first flow channel 11 is formed inside the first electrode assembly 10 through the first electrode plate 12, the first electrode liquid guide plate 13, and the cation exchange membrane 14, the first electrode liquid can flow along the first flow channel 11, and the projection of the first flow channel 11 on the surface perpendicular to the first direction X extends in a tortuous manner. In this way, the contact area between the first electrode liquid and the water to be treated is further increased through the tortuous first flow channel 11, thereby increasing the number of cation particles in the water to be treated that enter the first electrode liquid, and finally improving the water purification efficiency of the water to be treated.

[0072] Furthermore, after the second flow channel 51 is formed inside the second electrode assembly 50 through the second electrode plate 52, the second electrode liquid guide plate 53, and the anion exchange membrane 54, the second electrode liquid can flow along the second flow channel 51, and the projection of the second flow channel 51 on the surface perpendicular to the first direction X extends in a tortuous manner. Similar to the first flow channel 11, the tortuous second flow channel 51 can increase the contact area between the second electrode liquid and the water to be treated, thereby increasing the number of anions of the water to be treated entering the second electrode liquid, thereby improving the water purification efficiency of the water to be treated.

[0073] It is understandable that in some other embodiments, one of the first flow channel 11 and the second flow channel 51 may extend in a zigzag manner while the other extends in a straight line. The shapes of the first flow channel 11 and the second flow channel 51 may be selected according to actual usage requirements and are not limited here.

[0074] Specifically in one embodiment, the projection of the first flow channel 11 on the water guide member 30 at least partially overlaps with the water flow channel 31, and the higher the degree of overlap between the projection of the first flow channel 11 on the water guide member 30 and the water flow channel 31, the larger the contact area between the first electrode liquid and the treated water in the first flow channel 11, thereby improving the purification efficiency of the water to be treated. Further, the projection of the second guide member on the water guide member 30 at least partially overlaps with the water flow channel 31, thereby increasing the contact area between the second electrode liquid and the water to be treated, thereby improving the purification efficiency of the water to be treated.

[0075] Specifically, the first flow channel 11 and the second flow channel 51 each include a plurality of electrode liquid sub-flow channels arranged in parallel along the second direction Y, each electrode liquid sub-flow channel extends longitudinally along the third direction Z, each electrode liquid sub-flow channel is connected end to end, the first direction X, the second direction Y and the third direction Z intersect each other and are not coplanar, so that the first flow channel 11 and the second flow channel 51 are serpentine as a whole. The water flow channel 31 also includes a plurality of water sub-flow channels arranged in parallel along the second direction Y, each water sub-flow channel extends longitudinally along the third direction Z, each water sub-flow channel is connected end to end, and each of the water sub-flow channels is aligned and arranged in parallel with one of the electrode liquid sub-flow channels, so that most of the projections of the first flow channel 11 and the second flow channel 51 on the water guide 30 can overlap with the water flow channel 31.

[0076] In some embodiments, referring to FIG. 3 , in order to facilitate the installation of the cation exchange membrane 14, a first step groove 33 is provided on the side of the water guide member 30 facing the first electrode assembly 10, and the cation exchange membrane 14 is disposed in the step groove. Thus, the first step groove 33 not only facilitates the installation of the cation exchange membrane 14, but also allows the cation exchange membrane 14 to be protected by the edge wrapping, thereby reducing the probability of damage to the cation exchange membrane 14.

[0077] Furthermore, in order to facilitate the installation of the anion exchange membrane 54, a second step groove 34 is formed on the side of the water guide member 30 facing the second electrode assembly 50, and the anion exchange membrane 54 is arranged in the second step groove 34, so that the anion exchange membrane 54 is protected by the second step groove 34. The water guide hole 32 runs through the first step groove 33 to the second step groove 34, so that the cation exchange membrane 14 and the anion exchange membrane 54 are surrounded by the water guide hole 32 to form a water flow channel 31.

[0078] Specifically in some embodiments, the water guide member 30 is provided with a water inlet 35 at one end in the second direction Y, and a water outlet 36 at the other end, the water inlet 35 and the water outlet 36 are respectively connected with the two ends of the guide hole in the longitudinal direction thereof, and the water to be treated is input into the water flow channel 31 through the water inlet 35, and the treated water after desalination is input from the water outlet 36. The water inlet 35 and the water outlet 36 are respectively arranged on both sides of the water guide member 30 in the second direction Y, which can not affect the stacking and matching of the water guide member 30 with the first electrode assembly 10 and the second electrode assembly 50, and is convenient for connecting the water purification device with other external devices.

[0079] In some embodiments, the first electrode assembly 10 further includes a first protective member 16, which is disposed on a side of the first electrode plate 12 away from the first electrode liquid guide plate 13, so that the surface of the first electrode plate 12 is protected by the first protective member 16. Further, the second electrode assembly 50 further includes a second protective member 56, which is disposed on a side of the second electrode plate 52 away from the second electrode liquid guide plate 53, so that the surface of the second electrode plate 52 is protected by the second protective member 56.

[0080] Specifically in some embodiments, the water purification device further includes a first input pipe 17 and a first output pipe 18, the first input pipe 17 and one end of the first input pipe 17 and the first output pipe 18 are both extended out of the first protective member 16, and the other ends are both passed through the first protective member 16, the first electrode plate 12 and the first flow guide hole 15. A first input port 19 is provided on the circumferential side wall of the first input pipe 17, and the first input port 19 is located at one end of the first flow guide hole 15 in its longitudinal direction, and a first output port 20 is provided on the circumferential side wall of the first output pipe 18, and the first output port 20 is located at the other end of the first flow guide hole 15 in its longitudinal direction.

[0081] During actual use, the first electrode liquid in the external first electrode liquid storage device is input into the first flow channel 11 through the first output port 20 of the first input pipe 17. After the first electrode liquid in the first flow channel 11 absorbs the cations of the water to be treated, it is re-input into the external first electrode liquid storage device through the first output port 20 and the first output pipe 18.

[0082] By extending one end of the first input tube 17 and the first output tube 18 out of the first protective member 16, it is convenient to connect with the external first electrode liquid storage device, and the first input port 19 of the first input tube 17 and the first output port 20 of the first output tube 18 are connected to the first flow channel 11, and there is no need to open additional holes on the first electrode liquid guide member, so that the overall water purification device is more compact and the sealing position can be reduced, thereby reducing the risk of leakage of the first electrode liquid. At the same time, since the first input tube 17 and the first output tube 18 pass through the first protective member 16, the first electrode plate 12 and the first electrode liquid guide member, when installing the first protective member 16, the first electrode plate 12 and the first electrode liquid guide member, they can be positioned through the first input tube 17 and the first input tube 17, which increases installation convenience and improves installation convenience.

[0083] In some embodiments, the water purification device further includes a second input pipe 57 and a second output pipe 58, one end of each of the second input pipe 57 and the second output pipe 58 extends out of the first protective member 16, and the other end of each of the second input pipe 57 and the second output pipe 58 passes through the first protective member 16, the first electrode plate 12, the first electrode liquid guide plate 13, the water guide member 30, the second protective member 56, the second electrode plate 52, and the second guide hole 55. A second input port 59 is provided on the circumferential side wall of the second input pipe 57, and the second input port 59 is located at one end of the second guide hole 55 in its longitudinal direction, and a second output port 60 is provided on the circumferential side wall of the second output pipe 58, and the second output port 60 is located at the other end of the second guide hole 55 in its longitudinal direction.

[0084] The functions of the second input pipe 57 and the second output pipe 58 can refer to the functions of the first input pipe 17 and the first output pipe 18, and will not be repeated here. In this embodiment, since the second input pipe 57, the second output pipe 58, the first input pipe 17, and the first output pipe 18 all extend from the first protective member 16, the interfaces of the second input pipe 57, the second output pipe 58, the first input pipe 17, and the first output pipe 18 are all located on the same side of the water purification device, so that the second input pipe 57, the second output pipe 58, the first input pipe 17, and the first output pipe 18 can be easily installed with other equipment.

[0085] Furthermore, the second input tube 57, the second output tube 58, the first input tube 17, and the first output tube 18 are all integrally formed with the second protective member 56, so that when the second protective member 56 is installed, the second input tube 57, the second output tube 58, the first input tube 17, and the first output tube 18 can be directly installed in place, and then the second electrode plate 52, the second electrode liquid guide plate 53, the anion exchange membrane 54, the water guide plate 30, the cation exchange membrane 14, the first electrode liquid guide plate 13, and the first electrode plate 12 can be stacked in sequence along the second input tube 57.

[0086] It is understandable that the second input pipe 57, the second output pipe 58, the first input pipe 17, and the first output pipe 18 can directly pass through the water guide hole 32 when passing through the water guide member 30, or can be separately opened for the passage of each pipe. The first electrode plate 12, the second electrode plate 52, the first protective member 16, and the second protective member 56 are each provided with four through holes for the passage of the second input pipe 57, the second output pipe 58, the first input pipe 17, and the first output pipe 18, respectively.

[0087] In some other embodiments, the extended ends of the second input pipe 57 and the second output pipe 58 may also be located on the second protective member 56. Specifically, the water purification device further includes a second input pipe 57 and a second output pipe 58, one end of each of the second input pipe 57 and the second output pipe 58 extends out of the second protective member 56, and the other end passes through the second protective member 56, the second electrode plate 52, and the second guide hole 55. A second input port 59 is provided on the circumferential side wall of the second input pipe 57, and the second input port 59 is located at one end of the second guide hole 55 in its longitudinal direction. A second output port 60 is provided on the circumferential side wall of the second output pipe 58, and the second output port 60 is located at the other end of the second guide hole 55 in its longitudinal direction. That is, the interface of the second input pipe 57 and the second output pipe 58 is located at the other end of the water purification device away from the first input pipe 17 and the first output pipe 18, so as to achieve more flexible installation according to actual installation requirements.

[0088] In some embodiments, since the first electrode plate 12 is covered by the first protective member 16 and the first electrode liquid guide plate 13 on both sides of the first direction X, respectively, in order to connect the first electrode plate 12 to an external power supply, the first electrode plate 12 extends out of the first protective member 16 and the first electrode liquid guide plate 13 at one end in the second direction Y, and by connecting the extended part of the first electrode plate 12 to a power supply, the first electrode plate 12 can be charged.

[0089] Similarly, the second electrode plate 52 extends a second protective member 56 and a second electrode liquid guide plate 53 at one end of the second electrode plate 52 in a second direction Y intersecting the first direction X, so as to be connected to a power source through the extended portion of the second electrode plate 52, so that the second electrode plate 52 is charged and forms an electric field on the first electrode plate 12.

[0090] It is understandable that in some other embodiments, the first electrode plate 12 and / or the second electrode plate 52 may be connected to an external power source by opening holes in the first protective member 16 and / or the second protective member 56 .

[0091] In some embodiments of the present application, in order to prevent leakage of the first electrode liquid, the second electrode liquid and the water to be treated, a first seal 70 is provided between the first electrode plate 12 and the first electrode liquid guide member. The first seal 70 is used to seal the gap between the first electrode plate 12 and the first electrode liquid guide member to prevent leakage of the first electrode liquid.

[0092] Meanwhile, a second seal 71 is provided between the first electrode liquid guide plate 13 and the water guide member 30 to seal the gap between the first electrode liquid guide plate 13 and the water guide member 30 to prevent leakage of the treated water or the first electrode liquid.

[0093] In addition, a third sealing member 72 is provided between the water guide member 30 and the second electrode liquid guide plate 53. The third sealing member 72 seals the gap between the water guide member 30 and the second electrode liquid guide plate 53 to prevent leakage of the treated water or the second electrode liquid.

[0094] Furthermore, a fourth sealing member 73 is provided between the second electrode liquid guide plate 53 and the second electrode plate 52 , and the gap between the second electrode liquid guide plate 53 and the second electrode plate 52 is sealed by the fourth sealing member 73 to prevent leakage of the second electrode liquid.

[0095] In some embodiments of the present application, the above-mentioned seal requires sufficient pressure to maintain the sealing effect. To this end, the water purification device also includes bolts and nuts. The first electrode assembly 10 is provided with a first fastening hole 21 extending along the first direction X, the water guide member 30 is provided with a second fastening hole 37 extending along the first direction X, and the second electrode assembly 50 is provided with a third fastening hole 61 extending along the first direction X. The bolts pass through the first fastening hole 21, the second fastening hole 37 and the third fastening hole 61 and are threadedly connected to the nuts.

[0096] Among them, the first fastening hole 21 passes through the first protective member 16, the first electrode plate 12, and the first electrode liquid guide member in sequence, and the second fastening hole 37 passes through the second electrode liquid guide member, the second electrode plate 52, and the second protective member 56 in sequence. In this way, when the bolts and nuts are tightened, the bolts and nuts will fix the first protective member 16, the first electrode plate 12, the first electrode liquid guide member, the water guide member 30, the second electrode liquid guide member, the second electrode plate 52, and the second protective member 56.

[0097] Further, the first fastening holes 21 include a plurality of first fastening holes 21, which are arranged around the edge of the first electrode assembly 10; the second fastening holes 37 include a plurality of second fastening holes 37, which correspond one-to-one to the plurality of first fastening holes 21 and are arranged around the edge of the water guide member 30; and the third fastening holes 61 include a plurality of third fastening holes 61, which correspond one-to-one to the plurality of second fastening holes 37 and are arranged around the edge of the second electrode assembly 50.

[0098] In this way, the edges of the first protective member 16, the first electrode plate 12, the first electrode liquid guide member, the water guide member 30, the second electrode liquid guide member, the second electrode plate 52, and the second protective member 56 can be fixed through the multiple first fastening holes 21, the multiple second fastening holes 37, and the multiple third fastening holes 61 to ensure that the fastening force in the planar direction is evenly distributed circumferentially, thereby ensuring the sealing effect of the above-mentioned first seal 70, the second seal 71, the third seal 72, and the fourth seal 73.

[0099] An embodiment of the present application also provides a water purification equipment, including a water purification device as in any of the above embodiments. The water purification equipment includes the above water purification device. Since the water purification equipment includes all the technical features of the above water purification device, the water purification equipment has all the technical effects of the above water purification device, which will not be repeated here.

[0100] The above water purification device has at least the following advantages:

[0101] The projection of the water flow channel 31 on the surface perpendicular to the first direction X extends in a zigzag manner, and the length of the water flow channel 31 is increased in a zigzag manner, thereby increasing the contact area between the first electrode assembly 10 and the second electrode assembly 50 and the water to be treated, and the flow time of the water to be treated in the water flow channel 31 will also increase accordingly. The longer the water to be treated flows in the water flow channel 31, the longer the ions in the water to be treated are affected by the electric field, so that more cations enter the first electrode liquid and more anions enter the second electrode liquid, thereby effectively improving the water purification efficiency of the water to be treated.

[0102] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0103] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A water purification device, characterized in that: include: A first electrode assembly (10), a water guide member (30), and a second electrode assembly (50); The first electrode assembly (10), the water guide member (30) and the second electrode assembly (50) are stacked in sequence along a first direction (X); the first electrode assembly (10) is used to be connected to the negative electrode of an external power source and has a first electrode liquid flowing therein; the second electrode assembly (50) is used to be connected to the positive electrode of the external power source and has a second electrode liquid flowing therein; an electric field is formed between the second electrode assembly (50) and the first electrode assembly (10); The water guide member (30) is located in the electric field, and the water guide member (30), the first electrode assembly (10) and the second electrode assembly (50) are arranged to form a water flow channel (31), water to be treated flows in the water flow channel (31), and a projection of the water flow channel (31) on a surface perpendicular to the first direction (X) extends in a zigzag manner. Under the action of the electric field, cations in the water to be treated located in the water flow channel (31) can enter the first electrode liquid, and anions can enter the second electrode liquid.

2. The water purification device according to claim 1, characterized in that: A first flow channel (11) is provided inside the first electrode assembly (10), the first electrode liquid can flow along the first flow channel (11), and a projection of the first flow channel (11) on a surface perpendicular to the first direction (X) extends in a zigzag manner; And / or, a second flow channel (51) is provided inside the second electrode assembly (50), the second electrode liquid can flow along the second flow channel (51), and the projection of the second flow channel (51) on a surface perpendicular to the first direction (X) extends in a zigzag manner.

3. The water purification device according to claim 2, characterized in that: The projection of the first flow channel (11) on the water guide member (30) at least partially overlaps with the water flow channel (31); And / or, a projection of the second flow channel (51) on the water guide member (30) at least partially overlaps with the water flow channel (31).

4. The water purification device according to claim 1, characterized in that: The first electrode assembly (10) comprises a first electrode plate (12), a first electrode liquid guide plate (13), and a cation exchange membrane (14), wherein the first electrode plate (12), the first electrode liquid guide plate (13), and the cation exchange membrane (14) are stacked in sequence along the first direction (X); The first electrode liquid flow guide plate (13) is provided with a first flow guide hole (15) penetrating along a first direction (X); the first electrode plate (12) and the cation exchange membrane (14) respectively cover two opposite ends of the first flow guide hole (15) in the first direction (X); and the first electrode plate (12), the first electrode liquid flow guide plate (13) and the cation exchange membrane (14) are mutually surrounded to form a first flow channel (11) for circulating the first electrode liquid; And / or, the second electrode assembly (50) comprises a second electrode plate (52), a second electrode liquid guide plate (53), and an anion exchange membrane (54), wherein the anion exchange membrane (54), the second electrode liquid guide plate (53), and the second electrode plate (52) are stacked in sequence along the first direction (X); The second electrode liquid flow guide plate (53) is provided with a second flow guide hole (55) penetrating along a first direction (X); the second electrode plate (52) and the anion exchange membrane (54) respectively cover two opposite ends of the second flow guide hole (55) in the first direction (X); and the second electrode plate (52), the second electrode liquid flow guide plate (53) and the anion exchange membrane (54) are mutually surrounded to form a second flow channel (51) for circulating the second electrode liquid.

5. The water purification device according to claim 4, characterized in that: The water guide member (30) is provided with a water guide hole (32) penetrating along a first direction (X), the water guide hole (32) extending in a zigzag manner on the surface of the water guide member (30), the cation exchange membrane (14) and the anion exchange membrane (54) respectively covering two opposite ends of the water guide hole (32) in the first direction (X), and the cation exchange membrane (14), the anion exchange membrane (54) and the water guide member (30) are arranged to form a water flow channel (31).

6. The water purification device according to claim 5, characterized in that: A first step groove (33) is provided on a side of the water guide member (30) facing the first electrode assembly (10), and the cation exchange membrane (14) is arranged in the first step groove (33); And / or, a second step groove (34) is provided on a side of the water guide member (30) facing the second electrode assembly (50), and the anion exchange membrane (54) is arranged in the second step groove (34).

7. The water purification device according to claim 5, characterized in that: The water guide member (30) is provided with a water inlet (35) at one end in a second direction (Y) intersecting the first direction (X), and a water outlet (36) at the other end, the water inlet (35) and the water outlet (36) being respectively connected to two opposite ends of the water guide hole (32) in its longitudinal direction.

8. The water purification device according to claim 4, characterized in that: The first electrode assembly (10) further comprises a first protective member (16), wherein the first protective member (16) is arranged on a side of the first electrode plate (12) away from the first electrode liquid guide plate (13); And / or, the second electrode assembly (50) further comprises the second protective member (56), wherein the second protective member (56) is arranged on a side of the second electrode plate (52) away from the second electrode liquid guide plate (53).

9. The water purification device according to claim 8, characterized in that: The water purification device further comprises a first input pipe (17) and a first output pipe (18), one end of each of the first input pipe (17) and the first output pipe (18) extending out of the first protective member (16), and the other end of each of the first protective member (16), the first electrode plate (12) and the first flow guide hole (15); A first input port (19) is provided on the circumferential side wall of the first input pipe (17), the first input port (19) being located at one end of the first flow guide hole (15) in its longitudinal direction, and a first output port (20) is provided on the circumferential side wall of the first output pipe (18), the first output port (20) being located at the other end of the first flow guide hole (15) in its longitudinal direction.

10. The water purification device according to claim 9, characterized in that: At least one of the first input pipe (17) and the second input pipe (17) also passes through the water guide member (30), the second protective member (56), the second electrode plate (52) and the second electrode liquid guide plate (53), and the first input pipe (17) and the first input pipe (17) are integrally formed with the second protective member (56).

11. The water purification device according to claim 8, characterized in that: The water purification device further comprises a second input pipe (57) and a second output pipe (58), one end of the second input pipe (57) and the second output pipe (58) both extend out of the first protective member (16), and the other end both pass through the first protective member (16), the first electrode plate (12), the first electrode liquid guide plate (13), the water guide member (30), the second protective member (56), the second electrode plate (52) and the second guide hole (55); A second input port (59) is provided on the circumferential side wall of the second input pipe (57), the second input port (59) being located at one end of the second flow guide hole (55) in the longitudinal direction thereof, and a second output port (60) is provided on the circumferential side wall of the second output pipe (58), the second output port (60) being located at the other end of the second flow guide hole (55) in the longitudinal direction thereof.

12. The water purification device according to claim 11, characterized in that: At least one of the second input pipe (57) and the second output pipe (58) is integrally formed with the second protective member (56).

13. The water purification device according to claim 8, characterized in that: The water purification device further comprises a second input pipe (57) and a second output pipe (58), one end of the second input pipe (57) and the second output pipe (58) both extend out of the second protective member (56), and the other end both pass through the second protective member (56), the second electrode plate (52) and the second flow guide hole (55); A second input port (59) is provided on the circumferential side wall of the second input pipe (57), the second input port (59) being located at one end of the second flow guide hole (55) in the longitudinal direction thereof, and a second output port (60) is provided on the circumferential side wall of the second output pipe (58), the second output port (60) being located at the other end of the second flow guide hole (55) in the longitudinal direction thereof.

14. The water purification device according to claim 8, characterized in that: The first electrode plate (12) extends out of the first protective member (16) and the first electrode liquid guide plate (13) at one end of the first electrode plate (12) in a second direction (Y) intersecting the first direction (X); And / or, the second protective member (56) and the second electrode liquid guide plate (53) extend out of the second electrode plate (52) at one end of a second direction (Y) intersecting the first direction (X).

15. The water purification device according to claim 5, characterized in that: A first sealing member (70) is provided between the first electrode plate (12) and the first electrode liquid guide plate (13); And / or, a second sealing member (71) is provided between the first electrode liquid guide plate (13) and the water guide member (30); And / or, a third sealing member (72) is provided between the water guide member (30) and the second electrode liquid guide plate (53); And / or, a fourth sealing member (73) is provided between the second electrode liquid guide plate (53) and the second electrode plate (52).

16. The water purification device according to claim 1, characterized in that: The water purification device further comprises a bolt and a nut, wherein the first electrode assembly (10) is provided with a first fastening hole (21) penetrating along a first direction (X), the water guide member (30) is provided with a second fastening hole (37) penetrating along the first direction (X), and the second electrode assembly (50) is provided with a third fastening hole (61) penetrating along the first direction (X), and the bolt passes through the first fastening hole (21), the second fastening hole (37) and the third fastening hole (61) to be threadedly connected with the nut.

17. The water purification device according to claim 16, characterized in that: The first fastening holes (21) include a plurality of first fastening holes (21), and the plurality of first fastening holes (21) are arranged around the edge of the first electrode assembly (10); The second fastening holes (37) include a plurality of second fastening holes (37), the plurality of second fastening holes (37) correspond one-to-one to the plurality of first fastening holes (21), and are arranged around the edge of the water guide member (30); The third fastening holes (61) include a plurality of them, the plurality of the third fastening holes (61) correspond one-to-one to the plurality of the second fastening holes (37), and are arranged around the edge of the second electrode assembly (50).

18. A water purification device, characterized in that: Comprising a water purification device as described in any one of claims 1-17.

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