WO2020186939A1

WO2020186939A1 - Electrochemical water treatment apparatus having water inlet channel

Info

Publication number: WO2020186939A1
Application number: PCT/CN2020/074757
Authority: WO
Inventors: 张滨义; 于亮; 任天翔
Original assignee: 上海丁香环境科技有限公司
Priority date: 2019-03-18
Filing date: 2020-02-11
Publication date: 2020-09-24
Also published as: CN109761313A; CN109761313B

Abstract

Provided in the present invention is an electrochemical water treatment apparatus having a water inlet channel, where water discharged from a water outlet enters a cavity in a second horizontal direction, because the direction of flow runs along the second horizontal direction, the impact of the flow on a waterflow in a first horizontal direction produced by a diaphragm also is relatively reduced, thus effectively reducing cases in which the diaphragm is deformed or damaged by the impact of a perpendicular waterflow. The present invention also safeguards both sides of an electrode plate with a first part of the water outlet being arranged on a first side of the electrode corresponding thereto and a second part of the water outlet being arranged on a second side of the electrode plate corresponding thereto, that is, water supply is further balanced on either side of the diaphragm, thus preventing different forces from being generated with respect to the diaphragm due to the imbalance on either side, and further reducing the possibility of the diaphragm being deformed or damaged.

Description

Electrochemical water treatment device with water inlet channel

Technical field

The present invention relates to the field of water treatment, in particular to an electrochemical water treatment device with a water inlet channel.

Background technique

With the rapid economic development, environmental pollution caused by industrial wastewater has become increasingly serious. In the field of circulating water treatment, electrochemical water treatment has become a trend instead of chemical treatment, and electrochemical water treatment needs to use cathode and anode plates.

In the related art, for example, the patent publication number CN206940502U provides a water treatment device that can provide a diaphragm between the cathode plate and the anode plate. In this device, water can enter the cavity directly from the inlet near the bottom of the cavity.

However, when water enters the cavity and flows in the cavity, the action of the water flow will exert a force on the surface of the diaphragm, which will deform or even damage the diaphragm, which affects the actual effect of the diaphragm.

Summary of the invention

The present invention provides an electrochemical water treatment device with a water inlet channel, so as to solve the problem that the effect of water flow on the surface of the diaphragm will cause deformation or even damage to the diaphragm.

According to a first aspect of the present invention, there is provided an electrochemical water treatment device with a water inlet channel, comprising: a cavity, an electrode plate arranged in the cavity, and a diaphragm assembly, the electrode plate including a first electrode Plate and a second electrode plate, the diaphragm assembly is separated between the first electrode plate and the second electrode plate, the first electrode plate, the diaphragm assembly and the second electrode plate are along the first electrode plate Distributed in a horizontal direction; the device further includes a water inlet channel, the water inlet channel can be connected to the cavity through the water inlet;

The water inlet channel is arranged on one or both sides of the cavity along a second horizontal direction perpendicular to the first horizontal direction, so that the water discharged from the water outlet can be along the second horizontal direction Enter the cavity;

The first part of the water supply port is located on the first side of the corresponding electrode plate, and the second part of the water supply port is located on the second side of the corresponding electrode plate.

Optionally, the size and/or shape of the first part of the water supply port and the second part of the water supply port are the same.

Optionally, the water inlet of the water inlet channel is provided at one end of the water inlet channel along the first horizontal direction.

Optionally, the water inlet of the water inlet channel is provided at the top of the water inlet channel.

Optionally, there is a separation distance between the water supply port and the bottom end of the inner cavity of the water inlet channel.

Optionally, the diaphragm assembly includes two diaphragm frames, a diaphragm body clamped and installed between the two diaphragm frames, and a plurality of locking structures for locking the two diaphragm frames and the diaphragm body.

Optionally, the diaphragm frame includes an inner frame and an outer frame surrounding the periphery of the inner frame.

Optionally, the inner frame includes a first long strip and a second long strip arranged in the outer frame, and the first long strip and the second long strip cross each other.

Optionally, the locking structure includes a rod with a thread, and two nuts matching the threads, the rod passes through the two diaphragm frames and the diaphragm body, and the two nuts The threads are respectively screwed into the two sides of the rod, so that the two diaphragm frames and the diaphragm body are locked and clamped by the two nuts.

Optionally, both ends of the rod push the first electrode plate and the second electrode plate respectively.

Optionally, the vertical position of the water outlet is lower than the vertical position of the inner frame.

In the electrochemical water treatment device with a water inlet channel provided by the present invention, by arranging the water inlet channel on one side of the cavity along the second horizontal direction, the water discharged from the water inlet can follow the second horizontal direction. Direction into the cavity, because the flow direction is along the second horizontal direction, it is not easy to produce a water current impact on the diaphragm perpendicular to its surface. Furthermore, as the water accumulates and flows in the gap between the electrode plate and the diaphragm, it The impact of the water flow along the first horizontal direction on the diaphragm is relatively reduced, which can effectively reduce the deformation or damage of the diaphragm due to the impact of the vertical water flow.

At the same time, in the present invention, the first part of the water supply port is located on the first side of the corresponding electrode plate, and the second part of the water supply port is located on the second side of the corresponding electrode plate. Diaphragm components can be provided. The design of the first part and the second part can ensure that at least one of the factors such as the amount, pressure, and flow rate of the water sent from both sides of the electrode plate is more balanced, avoiding The imbalance of the two sides causes different forces to the diaphragm, which further reduces the possibility of deformation and damage of the diaphragm.

In an alternative solution of the present invention, since there is a separation distance between the water inlet and the bottom end of the inner cavity in the water inlet channel, the water in the inner cavity needs to be accumulated before it can be discharged from the water outlet, which can be accumulated by water , To eliminate the flow in the first horizontal direction, thereby reducing or eliminating the flow rate of the water entering the cavity in the first horizontal direction; at the same time, through the accumulation of water, it can also ensure the time and water pressure of each water delivery port Factors such as flow rate and flow rate can be kept close. Furthermore, the water on both sides of the diaphragm can be relatively balanced, which helps reduce the impact of water flow on the diaphragm and further reduces the possibility of deformation and damage of the diaphragm.

In an alternative solution of the present invention, the lower diaphragm frame is locked and clamped to the diaphragm body by the locking structure, which can stabilize the position and shape of the diaphragm body, and limit the occurrence of its deformation. Furthermore, by restricting the deformation, Reduce the possibility of injury.

In an alternative solution of the present invention, the rods in the locking structure push the first electrode plates and the second electrode plates on both sides to further restrict the position of the diaphragm assembly relative to the electrode plates on both sides, and prevent it from acting on the water flow. At the same time, the locking of the nut in the locking structure can also help limit the deformation of the diaphragm, and in turn, can reduce the possibility of damage by restricting the deformation.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

Fig. 1 is a partial structural diagram of an electrochemical water treatment device with a water inlet channel in an embodiment of the present invention;

2 is a partial structural diagram of another electrochemical water treatment device with a water inlet channel in an embodiment of the present invention;

3 is a partial structural diagram of another electrochemical water treatment device with water inlet channel in an embodiment of the present invention;

4 is a partial structural diagram of another electrochemical water treatment device with a water inlet channel in an embodiment of the present invention;

Figure 5 is a schematic cross-sectional view of a water inlet channel in an embodiment of the present invention;

Fig. 6 is a second schematic cross-sectional view of a water inlet channel in an embodiment of the present invention;

Figure 7 is a third schematic cross-sectional view of a water inlet channel in an embodiment of the present invention;

8 is a schematic diagram of the structure of the diaphragm assembly and the water inlet channel in the embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a diaphragm assembly in an embodiment of the present invention;

Figure 10 is a schematic structural diagram of another diaphragm assembly in an embodiment of the present invention;

Figure 11 is a schematic structural diagram of yet another diaphragm assembly in an embodiment of the present invention;

Figure 12 is a schematic structural view of a diaphragm assembly with a locking structure installed in an embodiment of the present invention;

Figure 13 is a schematic structural diagram of another diaphragm assembly with a locking structure installed in an embodiment of the present invention.

Description of reference signs:

1- The first electrode plate;

2- The second electrode plate;

3- diaphragm assembly;

31- Diaphragm body;

32-Outer frame;

33-Inner frame;

331-The first strip;

332-The second long strip;

34-through hole;

35-Locking structure;

351-rod;

352-nut;

4-cavity;

5- Inlet channel;

51-inner cavity;

52-Water delivery port;

53-Water inlet

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, but not necessarily Describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to the clearly listed Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.

The technical solutions of the present invention will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

Figure 1 is a partial structural diagram of an electrochemical water treatment device with a water inlet channel in an embodiment of the invention; Figure 2 is a partial structural diagram of another electrochemical water treatment device with a water inlet channel in an embodiment of the invention Figure 3 is a partial structural diagram of another electrochemical water treatment device with a water inlet channel in an embodiment of the present invention; Figure 4 is a partial structure of another electrochemical water treatment device with a water inlet channel in an embodiment of the present invention Schematic.

Please refer to Figures 1 to 3, an electrochemical water treatment device with a water inlet channel, comprising: a cavity 4, an electrode plate arranged in the cavity 4, and a diaphragm assembly 3, the electrode plate first electrode plate 1 and the second electrode plate 2, the diaphragm assembly 3 is separated between the first electrode plate 1 and the second electrode plate 2, the first electrode plate 1, the diaphragm assembly 3 and the first electrode plate 1 The two electrode plates 2 are distributed along the first horizontal direction; it can be understood as: a first electrode plate 1 and a second electrode plate 2 are respectively provided on both sides of each diaphragm assembly 3, namely: every two adjacent A diaphragm is provided between the first electrode plate 1 and the second electrode plate 2.

If the first electrode plate 1 is a cathode plate, the second electrode plate 2 is an anode plate, and if the first electrode plate 1 is an anode plate, the second electrode plate 2 is a cathode plate.

The first horizontal direction can be understood as the distribution direction of the electrode plates. At the same time, since the electrode plates are all plate-shaped, the first horizontal direction can also be understood as a direction perpendicular to the surface of each electrode plate.

In an alternative implementation of this embodiment, one cavity 4, as shown in FIGS. 1 and 2, may be provided with only one first electrode plate 1, one second electrode plate 2, and a corresponding diaphragm assembly 3. In a cavity 4, as shown in Figures 2 and 3, there are multiple first electrode plates 1 and multiple second electrode plates 2, and the number of corresponding diaphragm assemblies 3 can be determined according to the number of electrode plates. .

It can be seen that as long as the first electrode plate 1, the second electrode plate 2 and the diaphragm assembly 3 are provided in the cavity 4, no matter the number, it does not deviate from the scope described in this embodiment.

In this embodiment, the device further includes a water inlet channel 5, which can be connected to the cavity 4 through a water inlet 52; each water inlet 52 is corresponding to a position of an electrode plate .

Among them, the water inlet channel 5 can be assembled with the housing of the cavity 4, or can be integrated with the housing of the cavity 4. If assembled together, the water inlet can be understood as an opening in the cavity 4. At the same time, a connecting channel may be provided between the shell of the cavity 4 and the side wall of the water inlet channel 5, and the side wall of the water inlet channel 5 may also be provided with another corresponding water inlet; if it is integrated, then The water supply port is not only an opening in the side wall of the water inlet channel 5, but also an opening in the outer shell of the cavity 4.

Therefore, as long as the water is delivered into the cavity through the water delivery port 52 at the position of the electrode plate, it does not deviate from the related description of this embodiment.

In an implementation of this embodiment, the water inlet channel 5 is arranged on one side of the cavity 4 along a second horizontal direction perpendicular to the first horizontal direction, so that the water is discharged from the water supply port 52 The water can enter the cavity 4 along the second horizontal direction.

In another embodiment, please refer to FIG. 4, the water inlet channel 5 may be arranged on both sides of the cavity 4 along a second horizontal direction perpendicular to the first horizontal direction, and further, the water flow may flow from both sides Enter the cavity 4 respectively. Wherein, the water inlet channels on both sides of the cavity 4 may be two independent water inlet channels respectively, or they may communicate with each other. If only one side enters the water, it is easier to achieve the balance of the water supply compared to the two sides.

In the electrochemical water treatment device with a water inlet channel provided in this embodiment, by arranging the water inlet channel on one side of the cavity along the second horizontal direction, the water discharged from the water inlet can be moved along the second horizontal direction. It enters the cavity in the horizontal direction. Since the flow direction is along the second horizontal direction, it is not easy to produce a water current impact on the diaphragm perpendicular to its surface. Furthermore, as water accumulates and flows in the gap between the electrode plate and the diaphragm, The impact of the water flow on the diaphragm along the first horizontal direction is also relatively reduced, which can effectively reduce the deformation or damage of the diaphragm due to the impact of the vertical water flow.

At the same time, in the present invention, the first part of the water supply port is located on the first side of the corresponding electrode plate, and the second part of the water supply port is located on the second side of the corresponding electrode plate. Diaphragm components can be installed. The design of the first part and the second part can ensure that at least one factor such as the amount and pressure of the water discharged on both sides of the electrode plate is more balanced, avoiding both sides The imbalance of the slab leads to different forces on the diaphragm, which further reduces the possibility of deformation and damage to the diaphragm.

The cavity 4 may be provided with a drainage port near the top or at the top of the cavity 4, and the drainage port may be multiple. Furthermore, in a manner, a drainage port may be provided between each diaphragm assembly and an electrode plate. mouth.

In addition, in order to further ensure the balance of water supply, the water inlet and/or water inlet of the water inlet channel can also be provided with adjusting components, such as valves, which can be connected to a controller, and the controller can adjust the adjusting components according to the flow threshold value. So that the flow of the corresponding location can be controlled.

Please refer to FIGS. 1 and 3, one water inlet channel 5 may be correspondingly arranged on one side of a cavity 4, please refer to FIG. 2, one water inlet channel 5 may also be correspondingly arranged on one side of multiple cavities 4.

In one embodiment, the first part of the water supply port 52 is located on the first side of the corresponding electrode plate, and the second part of the water supply port 52 is located on the second side of the corresponding electrode plate. The first part and the second part can be understood as being divided along a first horizontal direction.

Since the diaphragm assembly 3 is arranged between the two electrode plates, the first side of the electrode plate can be the space between the electrode plate and the adjacent diaphragm assembly 3, and the second side can be the electrode plate A space between another diaphragm assembly 3 adjacent thereto, or a space on one side of an electrode plate where the diaphragm assembly 3 is not provided. The first side and the second side of the electrode plate may be disconnected, that is, the separation spaces may not be connected.

The above implementations can ensure that at least one of the factors such as the amount of water, water pressure, and flow rate of the water sent from both sides of the diaphragm assembly is relatively balanced, avoiding the imbalance of the two sides and causing different forces on the diaphragm, and further reducing the diaphragm. The possibility of deformation and damage.

During specific implementation, the size and/or shape of the first part of the water delivery port 52 and the second part of the water outlet are the same. Furthermore, it can provide uniform water delivery, water delivery speed, and water delivery pressure on both sides of the diaphragm assembly 3.

Regarding the shape of the water supply port 52, for example, if the water supply port 52 is a rectangular port, the first part and the second part are determined by the center line of the rectangular port. If the water supply port 52 is a circular port, the first part and the second part are The diameter of the circular opening is divided and determined; at the same time, the water delivery opening 52 can also be, for example, a polygonal shape or an irregular shape.

Fig. 5 is a first cross-sectional schematic diagram of a water inlet channel in an embodiment of the present invention.

Please refer to FIG. 5, there is a distance L between the water inlet 52 and the bottom end of the inner cavity 51 in the water inlet channel 5.

The bottom end can be matched and understood according to different shapes of the inner cavity 51. For example, if the inner cavity 51 is a rectangular cavity with a rectangular cross section, the bottom end can be understood as the bottom surface position. If the inner cavity 51 has a circular cross section The bottom of the circular cavity can be understood as the lowest position of the circle.

Due to the separation distance between the water inlet and the bottom end of the cavity in the water inlet channel, the water in the cavity needs to be accumulated before it can be discharged from the water outlet, which can be dissolved along the first level through the accumulation of water Directional flow, thereby reducing or eliminating the flow rate of the water entering the cavity along the first horizontal direction; at the same time, through the accumulation of water, it can also ensure that the time, water pressure, flow rate and other factors of the water outlets can be kept close Furthermore, the water on both sides of the diaphragm can be relatively balanced, which is beneficial to reduce the impact of water flow on the diaphragm, and further reduces the possibility of deformation and damage of the diaphragm.

It can be seen that as long as the space where water can accumulate can be generated through the separation distance L, the above description will not be deviated from.

Fig. 6 is a second schematic cross-sectional view of a water inlet channel in an embodiment of the present invention. Fig. 7 is a third schematic cross-sectional view of a water inlet channel in an embodiment of the present invention.

Please refer to FIG. 6, the water inlet 53 of the water inlet channel 5 is provided at one end of the water inlet channel 5 along the first horizontal direction. Please refer to Fig. 7, the water inlet 53 can also be located at the top of the water inlet channel 5, or at the bottom thereof. In other words, since the water inlet channel 5 can accumulate water, the position of the water inlet 53 can be various, and at the same time, the inlet The number of water inlets 53 may also be various, and further, it may include the case where multiple water inlets are provided at the same position, and may also include the case where one or more water inlets are respectively provided at multiple different positions.

Fig. 8 is a schematic diagram of the structure of the diaphragm assembly and the water inlet channel in the embodiment of the present invention.

Please refer to FIG. 8, the diaphragm assembly 3 includes two diaphragm frames, a diaphragm body 31 clamped and installed between the two diaphragm frames, and a plurality of locks for locking the two diaphragm frames and the diaphragm body Structure 35.

The locking and clamping of the lower diaphragm frame to the diaphragm body by the locking structure can stabilize the position and shape of the diaphragm body and limit the occurrence of its deformation. By restricting the deformation, the possibility of damage can also be reduced.

In one embodiment, the diaphragm frame includes an inner frame 33 and an outer frame 32 surrounding the inner frame 33. The inner frame 33 and the outer frame 32 may be integrally formed or assembled together, and the diaphragm body 31 can be connected to the space between the diaphragm assembly and the electrode plate through the inner frame 33.

During specific implementation, the vertical position of the water delivery port 52 is lower than the vertical position of the inner frame 33. In an example, it can be understood that the top of the water delivery port 52 may be lower than the bottom of the inner frame 33, which can prevent the discharged water from directly moving to the position where the diaphragm body 31 is exposed. In another example, it can also be understood that the position of the vertical center of the water delivery port 52 is lower than the bottom of the inner frame 33, which can prevent the delivered water part from directly moving to the position where the diaphragm body 31 is exposed.

The diaphragm assembly 3 can be understood as any component structure configured with a diaphragm body 31, which can be any of anion exchange membrane, cation exchange membrane, bipolar membrane, asbestos fiber membrane, non-woven fabric, chemical fiber filter cloth or ceramic membrane, for example One, for example, a plastic sheet with tiny holes and does not affect conductivity.

Fig. 9 is a schematic structural diagram of a diaphragm assembly in an embodiment of the present invention.

Please refer to FIG. 9, the inner frame 33 includes a first long strip 331 and a second long strip 332 disposed in the outer frame 32, the first long strip 331 and the second long strip 332 cross each other, The intersection can be perpendicular to each other. The long strip can stabilize the diaphragm and limit its deformation, and by restricting the deformation, the possibility of damage can also be reduced.

Among them, the distribution of the strips can be diverse, for example, it can be vertical, horizontal, or oblique. The cross-sectional shape of the strips can be rectangular, regular pattern, irregular pattern, and so on. In addition to being straight, the strips can also be curved or curved.

Fig. 10 is a schematic structural diagram of another diaphragm assembly in an embodiment of the present invention; Fig. 11 is a schematic structural diagram of another diaphragm assembly in an embodiment of the present invention; and Fig. 12 is a schematic diagram of a locking structure installed in an embodiment of the present invention A schematic structural diagram of a diaphragm assembly; FIG. 13 is a schematic structural diagram of another diaphragm assembly with a locking structure installed in an embodiment of the present invention.

10-13, the locking structure 35 includes a rod 351 with threads, and two nuts 352 matching the threads, the rod 351 passes through the two diaphragm frames and the The diaphragm body 31, the two nuts 352 are respectively screwed into the threads from both sides of the rod, so that the two diaphragm frames and the diaphragm body 31 are locked and clamped by the two nuts 352 . Specifically, the nut can be locked to the inner frame 33 and/or the outer frame 32.

In order to be suitable for passing through, the inner frame 33 and/or the outer frame 32 may be provided with a through hole 34 for the rod 351 to pass through.

The rod 351 can be any structure and material that can pass through the electrode plate, and at the same time, an insulating accessory can be provided between the rod 351 and the electrode plate.

By pushing the rods in the locking structure on the first electrode plate and the second electrode plate on both sides, the position of the diaphragm assembly relative to the electrode plates on both sides can be further restricted, and the deviation of the diaphragm assembly can be avoided under the action of water flow. The locking of the nut in the locking structure can also help limit the deformation of the diaphragm, and furthermore, can reduce the possibility of damage by restricting the deformation.

Wherein, at least part of the through hole 34 is provided at the intersection of the first long strip 331 and the second long strip 332. Specifically, the through hole 34 may be provided only at the crossing position, as shown in FIG. 8; the through hole 34 may also be provided at the crossing position and the non-crossing position, as shown in FIG. 9. In addition, the through hole 34 may also be provided in the outer frame 32.

The through holes can be evenly distributed to achieve uniform force.

In the embodiment shown in FIG. 12, the rod 351 may be elongated, for example, it may be a prefabricated part. In the embodiment shown in FIG. 13, the rod 351 may also be a screw rod, which is connected by a nut 352 and a rod 351. The adjustment can also make the length of the rod parts on both sides of the diaphragm frame the same to ensure the balance of the two sides.

In summary, in the electrochemical water treatment device with a water inlet channel provided by the present invention, by arranging the water inlet channel on one side of the cavity along the second horizontal direction, the water discharged from the water inlet can be made It can enter the cavity along the second horizontal direction. Since the flow direction is along the second horizontal direction, it is not easy to produce a water current impact on the diaphragm perpendicular to its surface. Furthermore, as the water in the distance between the electrode plate and the diaphragm Accumulation and flow will relatively reduce the impact of the water flow on the diaphragm in the first horizontal direction, which can effectively reduce the deformation or damage of the diaphragm due to the impact of the vertical water flow.

At the same time, in the present invention, the first part of the water supply port is located on the first side of the corresponding electrode plate, and the second part of the water supply port is located on the second side of the corresponding electrode plate. Diaphragm components can be installed. The design of the first part and the second part can ensure that at least one of the factors such as the amount of water, water pressure, and flow rate of the water discharged on both sides of the electrode plate is more balanced and avoid The imbalance on the two sides causes different forces on the diaphragm, which further reduces the possibility of deformation and damage of the diaphragm.

In an alternative solution of the present invention, since there is a separation distance between the water inlet and the bottom end of the inner cavity in the water inlet channel, the water in the inner cavity needs to be accumulated before it can be discharged from the water outlet, which can be accumulated by water , To eliminate the flow in the first horizontal direction, thereby reducing or eliminating the flow rate of the water entering the cavity in the first horizontal direction; at the same time, through the accumulation of water, it can also ensure the time and water pressure of each water delivery port Factors such as those can be kept close, and furthermore, the water on both sides of the diaphragm can be relatively balanced, which helps to reduce the impact of water flow on the diaphragm and further reduces the possibility of deformation and damage of the diaphragm.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention range.

Claims

An electrochemical water treatment device with a water inlet channel, comprising: a cavity, an electrode plate arranged in the cavity, and a diaphragm assembly. The electrode plate includes a first electrode plate and a second electrode plate. The diaphragm The component is separated between the first electrode plate and the second electrode plate, and the first electrode plate, the diaphragm assembly and the second electrode plate are distributed along a first horizontal direction; characterized in that, It also includes a water inlet channel, which can be connected to the cavity through a water inlet; each water inlet corresponds to a position of an electrode plate;

The water inlet channel is arranged on one or both sides of the cavity along a second horizontal direction perpendicular to the first horizontal direction, so that the water fed from the water inlet can be along the second horizontal direction. Direction into the cavity;

The first part of the water supply port is located on the first side of the corresponding electrode plate, and the second part of the water supply port is located on the second side of the corresponding electrode plate.
The device according to claim 1, wherein the size and/or shape of the first part of the water supply port and the second part of the water supply port are the same.
The device according to claim 1, wherein the water inlet of the water inlet channel is provided at one end of the water inlet channel along the first horizontal direction.
The device according to claim 1, wherein the water inlet of the water inlet channel is provided at the top of the water inlet channel.
The device according to claim 1, wherein there is a distance between the water supply port and the bottom end of the inner cavity of the water inlet channel.
The device according to any one of claims 1 to 5, wherein the diaphragm assembly comprises two diaphragm frames, a diaphragm body clamped and installed between the two diaphragm frames, and a diaphragm body for locking the two diaphragms. Multiple locking structures of the frame and the diaphragm body.
7. The device according to claim 6, wherein the diaphragm frame comprises an inner frame and an outer frame surrounding the inner frame.
The device according to claim 7, wherein the inner frame comprises a first long strip and a second long strip arranged in the outer frame, and the first long strip and the second long strip are mutually cross.
The device according to claim 6, wherein the locking structure comprises a rod with threads and two nuts matching the threads, and the rod passes through the two diaphragm frames and In the diaphragm body, the two nuts are respectively screwed into the threads from both sides of the rod, so that the two diaphragm frames and the diaphragm body are locked and clamped by the two nuts.
9. The device according to claim 9, wherein both ends of the rod push the first electrode plate and the second electrode plate respectively.