Modular electrodeionization device and water preparation system
By using a series-parallel design of modular electrostatic desalination units, the problems of low water production efficiency, high concentrate discharge, and high energy consumption in existing electrostatic desalination technologies are solved, achieving efficient water treatment and energy management, and simplifying process pipelines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUTIAN HUATONG PHARM EQUIP CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-26
AI Technical Summary
Existing electrostatic desalination technology suffers from problems such as low water production efficiency, high concentrated wastewater discharge, complex process pipelines, and high energy consumption in industrial applications.
The modular electro-desalination device adopts a series-parallel design of multiple electro-desalination units, combined with the connection of inlet, freshwater and concentrate pipelines, to achieve parallel freshwater production and series concentration of concentrate, thereby optimizing water resource utilization and energy consumption management.
It improves water treatment capacity, reduces water and energy consumption, simplifies process pipelines, increases concentrate concentration and reduces concentrate discharge, and facilitates maintenance and cleaning.
Smart Images
Figure CN224411504U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of water treatment equipment technology, and in particular to a modular electro-desalination device and a water preparation system. Background Technology
[0002] Electrostatic desalination technology plays a crucial role in circulating water treatment, primarily in the following aspects: First, it removes hardness ions. Through the action of an electric field, hardness ions such as calcium and magnesium in the water migrate to the electrode surface and are removed, preventing scaling problems and reducing wastewater discharge to improve water resource utilization. Second, it enhances water quality stability without the need for chemical additives. Hydroxide ions generated through electrode reactions combine with calcium and magnesium ions to form soluble substances that are discharged, avoiding the environmental pollution caused by traditional chemical treatments. Third, it extends equipment lifespan, reduces the risk of metal corrosion, and the gas generated by electrolysis keeps the scale loose, facilitating cleaning.
[0003] However, there are still several technical problems that need to be optimized in the industrial application of electro-desalination technology: First, the water production efficiency of a single module is low, and it is accompanied by a high amount of concentrate discharge; second, in the multi-module parallel operation mode, the concentrate of each module is discharged independently, which not only leads to a complex process pipeline system and high cost, but also causes a large amount of concentrate resources to be wasted; third, the concentration of concentrate in the existing technology is too low, which will also affect the system resistance, resulting in high system operating voltage and high energy consumption, thus causing significant energy loss.
[0004] Based on this, a modular electro-deionization device is designed to solve the above problems by utilizing the aforementioned features. Utility Model Content
[0005] In view of this, in order to overcome the shortcomings of the prior art, this utility model provides a modular electro-desalination device and water preparation system. The system consists of multiple electro-desalination units. Through the modular design of parallel desalination and series concentration of concentrated water, it effectively solves the problems of low water production efficiency, high concentrated water discharge, complex pipelines and high energy consumption.
[0006] According to a first aspect of the present invention, a modular electro-desalination device is provided, wherein the modular electro-desalination device includes multiple electro-desalination units and connecting pipelines, the multiple electro-desalination units are arranged sequentially along the production direction, the connecting pipelines include an inlet pipeline, a fresh water pipeline and a concentrate pipeline, the inlet pipeline is connected to each electro-desalination unit, the fresh water pipeline and the concentrate pipeline are connected to the product water outlet of each electro-desalination unit, and the concentrate pipeline of the preceding electro-desalination unit in the production direction is connected to the inlet of the following electro-desalination unit.
[0007] Preferably, the connecting pipeline further includes a freshwater outlet pipeline, and the freshwater pipeline of each of the electro-desalination units is connected to the freshwater outlet pipeline.
[0008] Preferably, the connecting pipeline further includes a concentrate outlet pipeline, and the concentrate pipeline of the electro-deionization unit located at the end of the production direction is connected to the concentrate outlet pipeline.
[0009] Preferably, two of the electro-desalination units can form an electro-desalination module, and one of the electro-desalination modules can be connected to the other electro-desalination module.
[0010] Preferably, the inlet pipe connected to the electro-desalination module includes a first pipe connected to the inlet of the first electro-desalination unit, a second pipe connected to the inlet of the first electro-desalination unit, and a third pipe connected to the second electro-desalination unit.
[0011] Preferably, the first electro-desalination unit of the electro-desalination module is connected to the freshwater pipeline and concentrated water pipeline of the second electro-desalination unit of another electro-desalination module via a first pipeline and a second pipeline, respectively; the second pipeline is equipped with a valve.
[0012] Preferably, both the freshwater outlet pipeline and the concentrated water outlet pipeline are equipped with flow meters.
[0013] Preferably, the freshwater pipeline is equipped with a valve.
[0014] Preferably, the concentrated water pipeline and the fresh water pipeline connected to the fresh water outlet pipeline and the concentrated water outlet pipeline are equipped with pressure gauges.
[0015] According to a second aspect of the present invention, a water preparation system is provided, wherein the water preparation system includes a modular electro-desalination device as described above.
[0016] According to this utility model, the modular electro-desalination device, through modular design and the series-parallel connection of multiple electro-desalination units with connecting pipelines, can improve water treatment capacity while reducing water consumption. The inlet pipeline connects multiple electro-desalination units in parallel to enhance water treatment capacity; multiple electro-desalination units are connected in series on the concentrate treatment side to reduce concentrate discharge and increase concentrate concentration; and the freshwater pipelines of each electro-desalination unit are connected in parallel to further enhance treatment capacity. This modular electro-desalination device, through its modular design, allows for the selection of an appropriate number of electro-desalination units based on production capacity requirements and inlet water quality characteristics, thus adjusting energy consumption. Simultaneously, the parallel connection of freshwater pipelines allows for flow rate matching based on the operating voltage of each electro-desalination unit, distributing the load of a single unit and avoiding low water production rate or water quality degradation due to overload of a single unit. Furthermore, the separate inlet and outlet of multiple electro-desalination units facilitates subsequent overall cleaning and maintenance.
[0017] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 A first structural schematic diagram of a modular electro-deionization device according to an embodiment of the present invention is shown;
[0020] Figure 2 A second structural schematic diagram of a modular electro-deionization device according to an embodiment of the present invention is shown;
[0021] Figure 3 A third structural schematic diagram of a modular electro-deionization device according to an embodiment of the present invention is shown.
[0022] Figure reference numerals: 1-Electrodeionization unit; 2-Inlet water pipeline; 3-Fresh water pipeline; 4-Concentrate water pipeline; 5-Fresh water outlet pipeline; 6-Concentrate water outlet pipeline; 8-Valve; 9-Flow meter; 10-Pressure gauge; 11-First pipeline; 12-Second pipeline; 13-Third pipeline. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0024] In the description of the embodiments of this application, it should be noted that the terms "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, or the orientation or positional relationship commonly used when the product of this application is in use. They are 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0025] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0026] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0027] According to a first aspect of this utility model, a modular electro-deionization device is provided, such as... Figures 1 to 3 As shown, the modular electro-desalination device is used for water preparation and includes multiple electro-desalination units 1 and connecting pipelines connecting these electro-desalination units 1.
[0028] In the following description, reference will be made to Figures 1 to 3This section describes the detailed structure of the electro-desalination unit 1 and its connecting pipelines in the modular electro-desalination device.
[0029] like Figure 1 and Figure 2 As shown in the embodiment, multiple electro-desalination units 1 are arranged sequentially along the production direction (here, the production direction can be understood as the production line direction). Since the influent of the existing electro-desalination units 1 is mostly permeate from the reverse osmosis system, its water quality is characterized by low ion concentration and low hardness. Therefore, based on these water quality characteristics, the concentrated water produced by the electro-desalination units 1 can be recycled and reused. This aims to maximize water resource utilization and effectively reduce the system's operating current intensity by reusing the concentrated water produced by a single unit, thereby achieving the overall energy-saving and consumption-reducing engineering goal. Therefore, multiple electro-desalination units 1 are connected in series and parallel to achieve efficient freshwater production and secondary reuse of concentrated water. Furthermore, in the embodiment, "freshwater" and "concentrated water" are commonly used existing terms in electro-desalination technology in water preparation processes. Freshwater can be understood as the finished water after electro-desalination treatment, typically with a low salt content; concentrated water can be understood as wastewater with a high salt content generated during the electro-desalination process.
[0030] Furthermore, the series-parallel connection of multiple electro-desalination units 1 is achieved through connecting pipelines. These connecting pipelines may include an inlet water pipeline 2, a fresh water pipeline 3, and a concentrate pipeline 4. The inlet water pipeline 2 connects to each electro-desalination unit 1, while the fresh water pipeline 3 and concentrate pipeline 4 connect to the product water outlet of each electro-desalination unit 1. The concentrate pipeline 4 of the preceding electro-desalination unit 1 in the production direction is connected to the inlet of the following electro-desalination unit 1. In this way, the concentrate from the first electro-desalination treatment can be passed through subsequent electro-desalination units 1 in series, achieving series utilization of the concentrate, reducing the amount of concentrate discharged, increasing the concentration of the concentrate, and saving water resources. The fresh water treated by each electro-desalination unit 1 can be collected in parallel into the same discharge pipeline, which can improve production efficiency, reduce the overall system operating voltage, and reduce energy consumption.
[0031] Furthermore, users can select the appropriate number of electro-deionization units 1 based on production factors such as capacity requirements and influent water quality, without being limited to... Figure 1 and Figure 2 The two given can also be three, four, or more.
[0032] This modular electro-desalination unit, through its modular design and the series-parallel connection of multiple electro-desalination units 1 with connecting pipelines, can improve water treatment capacity while reducing water consumption. The inlet pipeline 2 enhances water treatment capacity by connecting multiple electro-desalination units 1 in parallel. Multiple electro-desalination units 1 are connected in series on the concentrate treatment side to reduce concentrate discharge and increase concentrate concentration. The freshwater pipelines 3 of each electro-desalination unit 1 are connected in parallel to further enhance treatment capacity. The modular design allows for the selection of an appropriate number of electro-desalination units 1 based on production capacity requirements and inlet water quality characteristics, thus adjusting energy consumption. The parallel connection of the freshwater pipelines 3 allows for flow matching based on the operating voltage of each electro-desalination unit 1, distributing the load across individual units and preventing low water production or water quality degradation due to overload. Furthermore, the separate inlet and outlet of multiple electro-desalination units 1 facilitates subsequent overall cleaning and maintenance.
[0033] Preferably, such as Figure 1 and Figure 2 As shown, in this embodiment, the connecting pipeline may further include a freshwater outlet pipeline 5, and the freshwater pipeline 3 of each electro-desalination unit 1 is connected to the freshwater outlet pipeline 5. The freshwater outlet pipeline 5 is used to collect the freshwater produced by each electro-desalination unit 1, realizing the parallel connection of the freshwater pipelines 3. The parallel connection of freshwater can match the flow rate according to the operating voltage of each module, distribute the load of a single unit, and avoid problems such as low water production rate or water quality degradation caused by overload of a single unit.
[0034] Preferably, such as Figure 1 and Figure 2 As shown, in this embodiment, the connecting pipeline also includes a concentrate outlet pipeline 6, with the concentrate pipeline 4 of the electro-desalination unit 1 located at the end of the production direction connected to the concentrate outlet pipeline 6. The concentrate pipeline 4 of the preceding electro-desalination unit 1 is connected to the following electro-desalination unit 1, and the concentrate pipeline 4 of the last electro-desalination unit 1 is connected to the concentrate outlet pipeline 6, thus realizing the series connection of the concentrate pipelines 4 of the electro-desalination units 1. By connecting the concentrates in series, the ion concentration of the concentrates can be increased, effectively reducing the operating current, while also reducing the burden of concentrate treatment on downstream processes, thus saving energy and reducing consumption.
[0035] Preferably, such as Figure 1 and Figure 2 As shown in the embodiment, both the freshwater outlet pipe 5 and the concentrated water outlet pipe 6 are equipped with flow meters 9. The flow meters 9 can monitor the flow rate of the freshwater outlet pipe 5 and the concentrated water outlet pipe 6 in real time, so as to monitor the production of the modular electrostatic desalination device. Users can make reasonable adjustments to the production based on the flow meters 9.
[0036] Preferably, such as Figure 1 and Figure 2As shown, in this embodiment, the freshwater pipeline 3 is equipped with a valve 8. The valve 8 can be, for example, a flow control valve or an electric gate valve, which can realize the on / off control of the pipeline and the flow control to ensure the stable operation of freshwater production.
[0037] Preferably, such as Figure 1 and Figure 2 As shown in the embodiment, pressure gauges 10 are installed on the concentrate pipeline 4 and the freshwater pipeline 3, which are connected to the freshwater outlet pipeline 5 and the concentrate outlet pipeline 6. The water distribution of each electro-desalination unit 1 can be controlled by the valve 8 and the pressure gauge 10, while simplifying the pipeline connection and reducing the system investment cost.
[0038] Preferably, such as Figure 3 As shown, in this embodiment, two electro-desalination units 1 can form an electro-desalination module, and one electro-desalination module can be connected to another electro-desalination module. To facilitate the assembly of more electro-desalination units 1 for large-scale production, therefore... Figure 3 The system consisting of two electro-desalination units 1 described herein can be assembled as a single assembly module. Users can select an appropriate number of electro-desalination modules based on factors such as production capacity requirements and influent water quality.
[0039] Preferably, such as Figure 3 As shown, in this embodiment, the water inlet pipe 2 connected to the electro-desalination module includes a first pipe 11 connected to the inlet of the first electro-desalination unit 1, a second pipe 12 connected to the inlet of the first electro-desalination unit 1, and a third pipe 13 connected to the second electro-desalination unit 1.
[0040] Preferably, such as Figure 3 As shown, in an embodiment, the first electro-desalination unit 1 of the electro-desalination module is connected to the fresh water pipeline 3 and the concentrated water pipeline 4 of the second electro-desalination unit 1 of another electro-desalination module through the first pipeline 11 and the second pipeline 12, respectively.
[0041] Thus, the inlet pipe 2 here can be understood as the raw water supplied by an external water source. It can be selected to supply water to the first electro-desalination unit 1 via the first pipe 11 or via both the first pipe 11 and the second pipe 12, depending on production needs. The inlet pipe 2 can also be understood as the product water pipe of the previous electro-desalination module. The concentrated water produced by the previous electro-desalination module can enter the first electro-desalination unit 1 through the second pipe 12 to realize the series connection of concentrated water.
[0042] Preferably, the second pipeline 12 is equipped with a valve 8, which can be used to open or close the second pipeline 12.
[0043] The modular electro-desalination unit operates as follows: Raw water enters the system, composed of multiple electro-desalination units 1 connected in series and parallel, through the inlet pipe 2. The raw water inlet pipe 2 is connected in parallel with each electro-desalination unit 1 to produce water. The concentrated water produced by the first electro-desalination unit 1 on the production line is sequentially connected to subsequent electro-desalination units 1 through the concentrated water pipe 4, and then concentrated and discharged through the concentrated water outlet pipe 6. The fresh water produced by each electro-desalination unit 1 is collected in parallel through the fresh water outlet pipe 5 and discharged from the fresh water outlet. During water production, the modular electro-desalination unit can use valves 8, flow meters 9, and pressure gauges 10 for flow matching to ensure stable production operation.
[0044] This modular electro-desalination unit, through its modular design and the series-parallel connection of multiple electro-desalination units and connecting pipelines, can improve water treatment capacity while reducing water consumption. The inlet pipeline connects multiple electro-desalination units in parallel to enhance water treatment capacity; multiple electro-desalination units are connected in series on the concentrate treatment side to reduce concentrate discharge and increase concentrate concentration; and the freshwater pipelines of each electro-desalination unit are connected in parallel to further enhance treatment capacity. The modular design allows for the selection of an appropriate number of electro-desalination units based on production capacity requirements and inlet water quality characteristics, thus adjusting energy consumption. The parallel connection of freshwater pipelines allows for flow rate matching based on the operating voltage of each electro-desalination unit, distributing the load across individual units and preventing low water production or water quality degradation due to overload. Furthermore, the separate inlet and outlet water for multiple electro-desalination units facilitates subsequent overall cleaning and maintenance.
[0045] Furthermore, according to a second aspect of the present invention, a water preparation system is provided, the water preparation system comprising the modular electro-desalination device as described above.
[0046] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.
Claims
1. A modular electrodeionization device, comprising: The modular electro-desalination device includes multiple electro-desalination units and connecting pipelines. The multiple electro-desalination units are arranged sequentially along the production direction. The connecting pipelines include an inlet pipeline, a fresh water pipeline, and a concentrate pipeline. The inlet pipeline connects to each electro-desalination unit, and the fresh water pipeline and the concentrate pipeline connect to the product water outlet of each electro-desalination unit. The concentrate pipeline of the preceding electro-desalination unit in the production direction is connected to the inlet of the following electro-desalination unit.
2. The modular electrodeionization device of claim 1, wherein, The connecting pipeline also includes a freshwater outlet pipeline, and the freshwater pipeline of each of the electro-desalination units is connected to the freshwater outlet pipeline.
3. The modular electrodeionization device of claim 2, wherein, The connecting pipeline also includes a concentrate outlet pipeline, and the concentrate outlet pipeline of the electro-deionization unit located at the end of the production direction is connected to the concentrate outlet pipeline.
4. The modular electrodeionization device of claim 1, wherein, Two of the aforementioned electro-desalination units can form an electro-desalination module, and one of the electro-desalination modules can be connected to the other electro-desalination module.
5. The modular electro-deionization device according to claim 4, characterized in that, The inlet pipe connected to the electro-desalination module includes a first pipe connected to the inlet of the first electro-desalination unit, a second pipe connected to the inlet of the first electro-desalination unit, and a third pipe connected to the second electro-desalination unit.
6. The modular electro-deionization device according to claim 5, characterized in that, The first electro-desalination unit of the electro-desalination module is connected to the fresh water pipeline and the concentrated water pipeline of the second electro-desalination unit of the other electro-desalination module through the first pipeline and the second pipeline, respectively. The second pipeline is equipped with a valve.
7. The modular electro-deionization device according to claim 3, characterized in that, Both the freshwater outlet pipeline and the concentrated water outlet pipeline are equipped with flow meters.
8. The modular electro-deionization device according to claim 1, characterized in that, The freshwater pipeline is equipped with valves.
9. The modular electro-deionization device according to claim 3, characterized in that, Pressure gauges are installed on the concentrate outlet pipeline and the concentrate outlet pipeline, which are connected to the concentrate outlet pipeline.
10. A water preparation system, characterized in that, The water preparation system includes the modular electro-desalination device according to any one of claims 1 to 9.