Electrodeionization module and water treatment apparatus

Abstract

The application relates to the technical field of water treatment, in particular to an electric desalination module and a water treatment equipment, the electric desalination module comprising: a first end plate; a second end plate, the first end plate and the second end plate are arranged to face each other; a first heat insulation piece, the first heat insulation piece is arranged on the side of the first end plate facing the second end plate; a second heat insulation piece, the second heat insulation piece is arranged on the side of the second end plate facing the first end plate; and a power supply assembly, the first end plate and / or the second end plate is provided with the power supply assembly. The electric desalination module provided by the application can separate and protect the first end plate and the second end plate by arranging the first heat insulation piece and the second heat insulation piece, thereby effectively reducing the heat transfer to the first end plate and / or the second end plate, causing the temperature of the first end plate and the second end plate to rise, and affecting the safety of the power supply assembly.

Description

Technical Field

[0001] This application relates to the field of water treatment technology, and in particular to an electro-desalination module and water treatment equipment. Background Technology

[0002] Currently, the electrodialysis module, commonly known as Electrodeionization (EDI), is a technology that combines electrodialysis and ion exchange to produce ultrapure water. It is widely used in the microelectronics and semiconductor industry, the pharmaceutical industry, and the chemical industry.

[0003] Electro-deionization (EDI) is a water treatment technology that continuously and efficiently removes ionic impurities from water under the influence of a direct current electric field through the combined action of ion exchange resins and selective ion exchange membranes. It is typically placed after a reverse osmosis (RO) system as a fine treatment unit, increasing the resistivity of water from approximately 1-10 μS / cm to an ultra-high purity of 5-18 MΩ·cm.

[0004] During operation, as the working time progresses, the end plate of the electro-deionization module is prone to overheating due to its proximity to the electrode plate. This overheating can affect the safety of the power supply process on the end plate. Utility Model Content

[0005] The purpose of this application is to provide an electro-desalination module and water treatment equipment, so as to solve to a certain extent the technical problem that the electro-desalination module is prone to end plate overheating, which affects the safety of the power module.

[0006] This application provides an electro-deionization module, comprising: First end plate; The second end plate is arranged facing each other; The first heat insulation element is disposed on the side of the first end plate facing the second end plate; The second heat insulation component is disposed on the side of the second end plate facing the first end plate; A power supply assembly is provided on the first end plate and / or the second end plate.

[0007] In the above technical solution, the electro-desalination module further includes: A membrane stack, wherein the membrane stack is disposed between the first heat insulation member and the second heat insulation member; The first electrode plate is disposed between the first heat insulation member and the membrane stack; The second electrode plate is disposed between the second heat insulation member and the membrane stack; The first electrode plate and the second electrode plate are respectively connected to the power supply component. In any of the above technical solutions, both the first heat insulation component and the second heat insulation component have a flat plate structure.

[0008] In any of the above technical solutions, both the first end plate and the second end plate are metal plates; The first end plate has a first reinforcing member on at least one side surface facing the second end plate; the second end plate has a second reinforcing member on at least one side surface facing the first end plate.

[0009] In any of the above technical solutions, the power supply component further includes: A power supply box is disposed on the side surface of the first end plate opposite to the second end plate; A power module, wherein the power module is disposed within the power box; A power controller is disposed inside the power box and is connected to the power module.

[0010] In any of the above technical solutions, the electro-deionization module further includes a chuck connector, and the number of chuck connectors is multiple, with the first end plate and / or the second end plate provided with the chuck connectors; Each of the chuck joints is equipped with a valve.

[0011] In any of the above technical solutions, the electro-desalination module further includes a plurality of connecting rods, each of which sequentially passes through the first end plate, the first heat insulation component, the first electrode plate, the membrane stack, the second electrode plate, the second heat insulation component, and the second end plate.

[0012] In any of the above technical solutions, the electro-desalination module further includes a fixed corner code, the number of which is at least one, and the first end plate and the second end plate are respectively provided with the fixed corner code; The fixed corner bracket includes a first connecting part and a second connecting part that are connected to each other.

[0013] In any of the above technical solutions, the membrane stack further comprises: Concentrate plate, wherein the number of concentrate plates is multiple; Freshwater board, wherein the number of freshwater boards is multiple; Multiple freshwater plates and multiple concentrated water plates are alternately arranged between the first electrode plate and the second electrode plate. This application also provides a water treatment device, including the electro-desalination module described in any of the above technical solutions, and thus possesses all the beneficial technical effects of the electro-desalination module, which will not be repeated here.

[0014] Compared with the prior art, the beneficial effects of this application are as follows: The electro-deionization module provided in this application includes: a first end plate; a second end plate, the first end plate and the second end plate being disposed facing each other; a first heat insulation member, the first heat insulation member being disposed on the side of the first end plate facing the second end plate; a second heat insulation member, the second heat insulation member being disposed on the side of the second end plate facing the first end plate; and a power supply assembly, the first end plate and / or the second end plate being provided with a power supply assembly. The electro-deionization module provided in this application can separate and protect the first end plate and the second end plate by setting a first heat insulation component and a second heat insulation component, thereby effectively reducing the impact on the safety of the power supply components caused by the heat transfer to the first end plate and / or the second end plate, which would lead to an increase in the temperature of the first end plate and / or the second end plate.

[0015] The water treatment equipment provided in this application includes the aforementioned electro-desalination module, thus enabling safe and efficient water production. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the electro-desalination module provided in the embodiments of this application; Figure 2 A front view of the electro-desalination module provided in an embodiment of this application; Figure 3 Another structural schematic diagram of the electro-desalination module provided in the embodiments of this application; Figure 4 for Figure 1 A magnified structural diagram of the provided electro-deionization module at point A.

[0018] Figure label: 1-First end plate, 2-Second end plate, 3-First heat insulation component, 4-Second heat insulation component, 5-Membrane stack, 6-Power supply assembly, 7-Chuck connector, 8-Fixing angle bracket, 801-First connecting part, 802-Second connecting part, 803-Reinforcing part, 9-Connecting rod. Detailed Implementation

[0019] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0020] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0021] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] The following reference Figures 1 to 4 The present application describes an electro-desalination module and water treatment equipment according to embodiments thereof.

[0025] See Figures 1 to 4This application provides an electro-deionization module, which includes a first end plate 1, a second end plate 2, a first heat insulation component 3, a second heat insulation component 4, and a power supply assembly 6. The first end plate 1 and the second end plate 2 are arranged facing each other. The side surface of the first end plate 1 facing the second end plate 2 is defined as its inner wall surface, and the side surface of the second end plate 1 facing away from the second end plate 2 is defined as its outer wall surface. The side surface of the second end plate 2 facing the first end plate 1 is defined as its inner wall surface, and the side surface of the second end plate 2 facing away from the first end plate 1 is defined as its outer wall surface. A first electrode plate is disposed on one side of the inner wall surface of the first end plate 1, and a second electrode plate is disposed on one side of the inner wall surface of the second end plate 2. The first electrode plate and the second electrode plate are spaced apart. It should be noted that one of the first electrode plate and the second electrode plate is a positive electrode plate, and the other is a negative electrode plate. The first heat insulation element 3 is disposed on the inner wall surface of the first end plate 1 and between the first electrode plate and the first end plate 1, thereby separating the first electrode plate from the first end plate 1 and greatly preventing the small amount of heat generated after the first electrode plate is energized from being transferred to the first end plate 1. The second heat insulation element 4 is disposed on the inner wall surface of the second end plate 2 and between the second electrode plate and the second end plate 2, thereby separating the second electrode plate from the second end plate 2 and greatly preventing the small amount of heat generated after the second electrode plate is energized from being transferred to the second end plate 2. Optionally, both the first heat insulation element 3 and the second heat insulation element 4 are insulating. The power supply component 6 is disposed on at least one of the first end plate 1 and the second end plate 2. Optionally, in this embodiment, the number of power supply components 6 is one, and the power supply component 6 is disposed on the outer wall surface of the first end plate 1.

[0026] Specifically, the inner wall of the first end plate 1 is provided with multiple first reinforcing members, which are specifically reinforcing ribs. The multiple reinforcing ribs extend in different directions, and all the reinforcing ribs are distributed in a crisscross pattern on the inner wall of the first end plate 1, thereby improving the structural strength of the first end plate 1. The outer wall of the first end plate 1 is smooth, which facilitates the installation of the power supply component 6 and also avoids damage to the membrane stack 5 or other structures caused by protrusions or sharp corners on the outer wall of the first end plate 1 when assembling or installing this electro-deionization module in a designated position.

[0027] In addition, it should be noted that the inner wall surface of the first end plate 1 is provided with a number of second reinforcing members, specifically reinforcing ribs. The reinforcing ribs are in contact with the first heat insulation member 3. The crisscrossing reinforcing ribs form several chambers on the inner wall surface of the first end plate 1, which can further improve the heat insulation effect between the first end plate 1 and the first heat insulation member 3.

[0028] Furthermore, the inner wall surface of the second end plate 2 is also provided with multiple reinforcing ribs, which are distributed in a crisscross pattern on the inner wall surface of the second end plate 2. Optionally, the outer wall surface of the second end plate 2 is relatively smooth. This electro-deionization module, by adding hidden reinforcing ribs to the inner wall surfaces of the first end plate 1 and the second end plate 2, not only improves the strength of the end plates and effectively solves the problem of insufficient strength of the end plates after assembly, but also enhances safety and reduces the risk of scratches and abrasions.

[0029] Optionally, both the first end plate 1 and the second end plate 2 are metal plates. Preferably, both the first end plate 1 and the second end plate 2 are made of aluminum alloy casting, which makes the electro-deionization module lighter and stronger.

[0030] Furthermore, this electro-deionization module also includes a first electrode plate and a second electrode plate, one of which serves as the positive electrode plate and the other as the negative electrode plate. The first electrode plate is disposed on the surface of the first heat insulation member 3 facing away from the first end plate 1, and the first electrode plate is in contact with the first heat insulation member 3. The first heat insulation member 3 separates the first electrode plate from the first end plate 1, thereby effectively reducing or even preventing the heat generated by the first electrode plate after being energized from being transferred to the first end plate 1 during the operation of this electro-deionization module.

[0031] The second electrode plate is disposed on the side surface of the second heat insulation member 4 away from the second end plate 2. The second electrode plate is attached to the second heat insulation member 4, and the second heat insulation member 4 separates the second electrode plate from the second end plate 2, thereby effectively reducing or even preventing the heat generated by the second electrode plate after being energized from being transferred to the second end plate 2.

[0032] Furthermore, the power supply component 6 specifically includes: a power supply box, a power supply module, and a power controller. The power supply box is snapped onto the outer wall of the first end plate 1, forming a cavity between the power supply box and the first end plate 1 to accommodate the power supply module and the power controller. The power supply module and the power controller are fixed to the outer wall of the first end plate 1 within the cavity. The power supply module and the power controller are electrically connected. The power supply module is specifically a DC power supply. Optionally, this electro-deionization module also includes a touch screen, specifically a PLC control screen commonly used in the prior art. The touch screen is electrically connected to the power controller, allowing operators to adjust parameters such as the current and voltage of the power supply module by operating the touch screen and the power controller. Therefore, this electro-deionization module integrates a built-in power supply device, significantly saving space in the electrical control cabinet during equipment use, reducing unnecessary space waste, and increasing the portability of the equipment.

[0033] In addition, the power supply box is equipped with wiring holes for running power cords and communication cables to connect to the electrical control cabinet or other electrostatic desalination modules. The wiring positions of the power modules are all located inside the power supply box, so that the positive and negative power connections are internally connected, avoiding the risk of short circuits caused by special reasons during use and enhancing the safety of use.

[0034] It should be noted that water treatment equipment typically includes multiple electro-desalination modules. When an individual electro-desalination module malfunctions, only that module needs to be removed and repaired, simplifying maintenance and operation. Replacing a faulty electro-desalination module is as simple as replacing an appliance with a plug, eliminating the need for electricians to handle complex high-voltage cable wiring. This reduces the technical requirements for maintenance personnel and shortens maintenance time. The advantage of this electro-desalination module also lies in its excellent scalability. When future system capacity needs to be expanded, simply add a new electro-desalination module to the reserved location and connect it to the power supply; expansion is very convenient and requires no replacement or upgrade of the power cabinet. Therefore, the electro-desalination module provided in this application, by setting the power supply component 6 on the end plate to achieve a built-in power supply device, significantly improves the integration and engineering simplicity of the module. Integrating the traditional external power supply system into a compact module greatly saves equipment installation space, simplifies system wiring and pipe connections, reduces installation costs and complexity, provides higher power transmission efficiency, lower energy loss, and improves system stability and reliability due to fewer external connection points.

[0035] Furthermore, this electro-desalination module also includes chuck connectors 7, and there are multiple chuck connectors 7. In this embodiment, there are four chuck connectors 7, and each chuck connector 7 is equipped with a valve for controlling the chuck connector 7. The four chuck connectors 7 are respectively a concentrate inlet connector, a concentrate outlet connector, a desalination inlet connector, and a desalination outlet connector. Each chuck connector 7 is connected to the membrane stack 5, thereby forming a circulating water path inside the membrane stack 5.

[0036] Furthermore, this electrostatic desalination module also includes multiple connecting rods 9. The first end plate 1 has multiple first through holes, the second end plate 2 has multiple second through holes, the membrane stack 5 has multiple third through holes, the first heat insulation component 3 has multiple fifth through holes, the second heat insulation component 4 has multiple sixth through holes, the first electrode plate has multiple seventh through holes, and the second electrode plate has multiple eighth through holes. The connecting rod 9 is specifically a long bolt. One end of the connecting rod 9 passes sequentially through each set of opposite and connected first through holes, seventh through holes, fifth through holes, third through holes, sixth through holes, eighth through holes, and second through holes, and is then locked with a nut to complete the assembly and fixation of this electrostatic desalination module.

[0037] Furthermore, this electrostatic desalination module also includes fixing brackets 8, with at least two fixing brackets 8. The first end plate 1 and the second end plate 2 are each provided with fixing brackets 8. The fixing brackets 8 are used to connect to a designated position, thereby fixing the electrostatic desalination module in the designated position. The fixing brackets 8 include a first connecting portion 801 and a second connecting portion 802 that are interconnected and angled together. Preferably, the first connecting portion 801 and the second connecting portion 802 are perpendicularly arranged. The first connecting portion 801 is flush with and connected to the outer wall surface of the first end plate 1, and the second connecting portion 802 is perpendicular to the first end plate 1. The first connecting portion 801 has a first connecting hole for connecting to the first end plate 1, and the second connecting portion 802 has a second connecting hole for connecting to the designated position. Preferably, reinforcing portions 803 are also provided on both sides of the first connecting portion 801 and the second connecting portion 802. The reinforcing portions 803 are simultaneously connected to the first connecting portion 801 and the second connecting portion 802, strengthening the structural strength of the fixing brackets 8 and ensuring the connection and support stability of the electrostatic desalination module. The connection method of the fixed corner bracket 8 on the second end plate 2 is the same as described above, which can be fully understood by those skilled in the art, and will not be repeated here.

[0038] Optionally, the first heat insulation element 3 and the second heat insulation element 4 are further provided with fixed corner brackets 8.

[0039] Furthermore, the membrane stack 5 includes multiple concentrate plates and multiple desalination plates. Each concentrate plate and each desalination plate is provided with a flow channel for communicating with the chuck connector 7. The communication structure between the flow channel and the chuck connector 7 is existing and mature technology in the art, and is not considered important protection content in this application. Those skilled in the art can fully understand this, and it will not be described in detail here. The multiple concentrate plates and multiple desalination plates are alternately arranged between the first electrode plate and the second electrode plate in a concentrate plate-desalination plate-concentrate plate... or desalination plate-concentrate plate-desalination plate pattern. The middle part of each concentrate plate and the middle part of each desalination plate are provided with a filling part for filling ion exchange resin. A membrane sheet is attached to the filled side. The above is the specific structure of the membrane stack 5 in this application. The specific water production principle of the membrane stack 5 is existing and mature technology in the art, and those skilled in the art can fully understand this.

[0040] In summary, the electro-deionization module provided in this application, by setting the first heat insulation component 3 and the second heat insulation component 4, can separate and protect the first end plate 1 and the second end plate 2, thereby effectively reducing the heat transfer to the first end plate 1 and / or the second end plate 2, which would cause the temperature of the first end plate 1 and the second end plate 2 to rise and affect the safety of the power supply component 6.

[0041] In addition, by setting the first heat insulation component 3 and the second heat insulation component 4, the electrode plate, membrane stack 5 and other components held by the first end plate 1 and the second end plate 2 can also be protected. When the first end plate 1 or the second end plate 2 is accidentally bumped, the risk of damage to the electrode plate and membrane stack 5 can be reduced.

[0042] The embodiments of this application also provide a water treatment device, including the electro-desalination module described in any of the above embodiments, and thus possess all the beneficial technical effects of the electro-desalination module, which will not be repeated here.

[0043] In this embodiment, there are multiple electro-desalination modules, which can be connected in series. Optionally, each of the multiple electro-desalination modules is connected to the electrical control cabinet. On the one hand, this can improve the water production efficiency and water production of the water treatment equipment. On the other hand, when individual electro-desalination modules fail, the entire water treatment equipment does not need to be shut down, thus enabling the water treatment equipment to produce high-purity water continuously.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An electro-desalination module, characterized in that, include: First end plate; The second end plate is arranged facing each other; The first heat insulation element is disposed on the side of the first end plate facing the second end plate; The second heat insulation component is disposed on the side of the second end plate facing the first end plate; A power supply assembly is provided on the first end plate and / or the second end plate.

2. The electro-desalination module according to claim 1, characterized in that, The electro-desalination module also includes: A membrane stack, wherein the membrane stack is disposed between the first heat insulation member and the second heat insulation member; The first electrode plate is disposed between the first heat insulation member and the membrane stack; The second electrode plate is disposed between the second heat insulation member and the membrane stack; The first electrode plate and the second electrode plate are respectively connected to the power supply component.

3. The electro-desalination module according to claim 1, characterized in that, Both the first heat insulation component and the second heat insulation component have a flat plate structure.

4. The electro-desalination module according to claim 1, characterized in that, Both the first end plate and the second end plate are metal plates; The first end plate has a first reinforcing member on at least one side surface facing the second end plate; the second end plate has a second reinforcing member on at least one side surface facing the first end plate.

5. The electro-desalination module according to claim 1, characterized in that, The power supply component includes: A power supply box is disposed on the side surface of the first end plate opposite to the second end plate; A power module, wherein the power module is disposed within the power box; A power controller is disposed inside the power box and is connected to the power module.

6. The electro-desalination module according to claim 1, characterized in that, The electro-deionization module also includes a chuck connector, and there are multiple chuck connectors. The first end plate and / or the second end plate are provided with the chuck connectors. Each of the chuck joints is equipped with a valve.

7. The electro-desalination module according to claim 2, characterized in that, The electro-desalination module also includes multiple connecting rods, each of which sequentially passes through the first end plate, the first heat insulation component, the first electrode plate, the membrane stack, the second electrode plate, the second heat insulation component, and the second end plate.

8. The electro-desalination module according to claim 1, characterized in that, The electro-desalination module also includes a fixed corner code, and the number of the fixed corner code is at least one. The first end plate and the second end plate are respectively provided with the fixed corner code. The fixed corner bracket includes a first connecting part and a second connecting part that are connected to each other.

9. The electro-desalination module according to claim 2, characterized in that, The membrane stack includes: Concentrate plate, wherein the number of concentrate plates is multiple; Freshwater board, wherein the number of freshwater boards is multiple; Multiple freshwater plates and multiple concentrated water plates are alternately arranged between the first electrode plate and the second electrode plate.

10. A water treatment device, characterized in that, Includes the electro-desalination module according to any one of claims 1 to 9.

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