A stepped water distributor for a CEDI module
By using a stepped water distributor, a flow divider plate, and flow divider protrusions to buffer the water flow pressure in the CEDI equipment, the problem of damage to the ion exchange membrane and resin caused by water flow impact is solved, thereby improving the stability of the equipment and the quality of the produced water.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广东诺璞环保科技有限公司
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-05
AI Technical Summary
In existing CEDI equipment, the impact of water flow and excessively high inlet water pressure cause the ion membrane and ion exchange resin to crack and break, affecting the quality of the produced water and easily causing flow deviation.
A stepped water distributor is adopted. By installing diversion plates at the outlet and inlet of the internal flow channel plate of the CEDI equipment, the water flow is divided into multiple parts by diversion channels and diversion protrusions. The water flow pressure is buffered by multiple protrusions, reducing the impact on the ion exchange membrane and resin.
It effectively reduces the impact of water flow on ion exchange membranes and ion exchange resins, lowers the possibility of component damage, improves service life, and ensures the stability of product water quality.
Smart Images

Figure CN224325218U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of water distributor equipment structure, specifically relating to a stepped water distributor for CEDI modules. Background Technology
[0002] CEDI (Continuous Electrodialysis Desalination) technology scientifically integrates electrodialysis and ion exchange technologies. Through the selective permeation of cation and anion membranes and the ion exchange resin's ability to exchange ions in water, ions migrate directionally under an electric field, achieving deep purification and desalination. The hydrogen and hydroxide ions generated by water electrolysis continuously regenerate the resin. Therefore, the CEDI water purification process can continuously produce high-quality ultrapure water without the need for acid or alkali chemical regeneration. It boasts advanced technology, compact structure, and simple operation, and can be widely used in the power, electronics, pharmaceutical, chemical, food, and laboratory fields.
[0003] In the structure of CEDI equipment, water needs to move rapidly within the equipment to complete the ion exchange and migration process. The flowing water will impact and pressure the ion membrane and ion exchange resin. The impact and excessively high inlet water pressure will cause the ion membrane and ion exchange resin to crack and break. At the same time, it will also cause the CEDI equipment to have flow deviation. Flow deviation will lead to an imbalance in ion exchange and migration, which will affect the quality of the produced water. There is an urgent need for a solution to the above problems. Summary of the Invention
[0004] One of the purposes of this application is to provide a stepped water distributor for a CEDI module to address the shortcomings of the prior art. In practical applications, it is installed at the outlet and inlet of the flow channel plate inside the CEDI device, which can reduce the pressure and impact of the water flow and allow the water to enter the working area in a balanced manner.
[0005] To achieve the above objectives, this application adopts the following technical solution:
[0006] A stepped water distributor for a CEDI module includes two identical diversion plates that are fitted together. Each diversion plate is provided with an inlet, a diversion channel, and an outlet. The inlet is located at the middle of the upper part of the diversion plate, and multiple diversion channels are provided below the inlet. The multiple diversion channels divide the diversion plate into multiple water flow areas, and multiple diversion protrusions are provided in each water flow area.
[0007] As an improvement to the stepped water distributor for the CEDI module described in this application, the diversion protrusion includes a first protrusion, a second protrusion, and a third protrusion arranged sequentially along the direction from the inlet to the outlet, and a plurality of the third protrusions are arranged at the bottom of the diversion plate and distributed sequentially at intervals to form the outlet.
[0008] As an improvement to the stepped water distributor for the CEDI module described in this application, a first water flow channel is formed between a plurality of first protrusions, and a second water flow channel is formed between a plurality of second protrusions, wherein the widths of the first water flow channel, the second water flow channel, and the outlet decrease sequentially.
[0009] As an improvement to the stepped water distributor for the CEDI module described in this application, the first protrusion is configured as an elongated structure and adapted to the shape of the diversion channel, and the length of the first protrusion is greater than the length of the second protrusion.
[0010] As an improvement to the stepped water distributor for the CEDI module described in this application, the second protrusion is configured as a circular protrusion structure, and the spacing between the plurality of second protrusions is the same.
[0011] As an improvement of the stepped water distributor for the CEDI module described in this application, the end of the diversion channel near the outlet is configured as a diversion block, which divides the area formed by the outlet into multiple outlet areas.
[0012] The second objective of this application is to provide another stepped water distributor for CEDI modules to address the shortcomings of existing technologies. This distributor has the same beneficial effects as the one described above and includes two matching and identical diversion plates. The diversion plates are provided with an inlet, a diversion protrusion, and an outlet from top to bottom. The inlet is located on one side of the upper part of the diversion plate, and a diversion block is provided between the outlets. The diversion block divides the area formed by the outlets into multiple water outlet areas.
[0013] As an improvement to the stepped water distributor for the CEDI module described in this application, the diversion protrusion includes a first protrusion and a third protrusion. The third protrusion is disposed at the bottom of the diversion plate and there are multiple third protrusions. The interval between the multiple third protrusions forms the water outlet. The first protrusion is disposed on the diversion plate below the water inlet.
[0014] As an improvement to the stepped water distributor for the CEDI module described in this application, the diversion protrusion further includes a second protrusion, which is disposed between the first protrusion and the third protrusion, and the length of the first protrusion is greater than the length of the second protrusion.
[0015] As an improvement to the stepped water distributor for the CEDI module described in this application, the intervals between the plurality of first protrusions form a first water flow channel, the intervals between the plurality of second protrusions form a second water flow channel, and the widths of the first water flow channel, the second water flow channel and the outlet decrease sequentially.
[0016] The beneficial effects of this application are as follows: This application is installed at the outlet and inlet of the flow channel plate in the CEDI equipment, and an ion exchange membrane is installed on the flow channel plate. In actual use, the water entering and leaving the flow channel plate, after being regulated by the water distributor of this application, can reduce the impact on the ion exchange membrane and ion exchange resin, reduce the possibility of component damage, and increase service life. Specifically, firstly, the water is divided into multiple parts by the diversion channel (or part of the water flow protrusion and diversion block), and secondly, the water flow protrusion reduces the impact force of the water flow, thereby reducing the pressure of the water flow on other components. Attached Figure Description
[0017] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.
[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.
[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle.
[0020] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this application.
[0021] Figure 4 for Figure 3 Enlarged view of point B in the middle.
[0022] The reference numerals in the attached figures are explained as follows:
[0023] 1. Diverter plate;
[0024] 2. Water inlet;
[0025] 3. Diversion channels;
[0026] 4. Water outlet;
[0027] 5. Diversion protrusion; 51. First protrusion; 52. Second protrusion; 53. Third protrusion;
[0028] 61. First water flow channel; 62. Second water flow channel;
[0029] 7. Diverter block. Detailed Implementation
[0030] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error. Furthermore, terms such as "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.
[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 based on the specific circumstances.
[0033] The following is in conjunction with the appendix Figures 1-4 The present application will be further described in detail with reference to specific implementation methods, but this is not intended to limit the present application.
[0034] Implementation
[0035] The following is in conjunction with the appendix Figures 1-2 Description of Implementation Method 1
[0036] A stepped water distributor for a CEDI module includes two identical diversion plates 1 that are installed together. The diversion plate 1 is provided with an inlet 2, a diversion channel 3 and an outlet 4. The inlet 2 is located in the middle of the upper part of the diversion plate 1. The diversion channel 3 is located below the inlet 2 and there are multiple diversion channels 3. The multiple diversion channels 3 divide the diversion plate 1 into multiple water flow areas. Multiple diversion protrusions 5 are provided in the water flow areas.
[0037] In practical use, two diversion plates 1 with diversion channels 3 and diversion protrusions 5 facing each other are installed on the outlet and inlet of the flow channel plate of the CEDI equipment. The flow channel plate is equipped with an ion exchange membrane and resin for the directional movement and electrolysis of ions in the water to be treated. It can be understood that some parts in the figure are provided with holes for installation and fixation. During operation, the water entering and leaving the flow channel plate first passes through multiple water flow areas divided by the diversion channels 3, which reduces the pressure without affecting the capacity. Then, it passes through multiple diversion protrusions 5 to buffer the water flow pressure, thereby reducing the impact of the water flow on the ion exchange membrane and resin, reducing the possibility of component damage, and increasing service life.
[0038] Specifically, the diversion protrusion 5 includes a first protrusion 51, a second protrusion 52, and a third protrusion 53 arranged sequentially along the direction from the inlet 2 to the outlet 4. In this embodiment, the first protrusion 51 is set as a long strip structure and is adapted to the shape of the diversion channel 3. The length of the first protrusion 51 is greater than the length of the second protrusion 52. The second protrusion 52 is set as a circular protrusion structure. The intervals between the multiple second protrusions 52 are the same. The circular protrusion can better reduce the water flow pressure. It is understood that the shape and other specific parameters of the diversion protrusion 5 can be changed according to actual needs. In some other technical solutions, the second protrusion 52 may not be provided according to the requirements of water flow speed and specific structure of components.
[0039] Specifically, a first water flow channel 61 is formed between multiple first protrusions 51, a second water flow channel 62 is formed between multiple second protrusions 52, and multiple third protrusions 53 are set at the bottom of the diversion plate 1 and are distributed in sequence to form water outlets 4. The end of the diversion channel 3 near the water outlet 4 is set as a diversion block 7. The diversion block 7 divides the area formed by the water outlet 4 into multiple water outlet areas. The widths of the first water flow channel 61, the second water flow channel 62 and the water outlet 4 decrease in sequence to form a stepped diversion scheduling.
[0040] Implementation
[0041] The following is in conjunction with the appendix Figures 3-4 Description of Implementation Method Two
[0042] A stepped water distributor for a CEDI module includes two identical diversion plates 1 that are installed together. The diversion plates 1 are provided with an inlet 2, a diversion protrusion 5 and an outlet 4 from top to bottom. The inlet 2 is located on one side of the upper part of the diversion plate 1. A diversion block 7 is provided between the outlets 4. The diversion block 7 divides the area formed by the outlets 4 into multiple water outlet areas.
[0043] Specifically, the diversion protrusion 5 includes a first protrusion 51 and a third protrusion 53. The third protrusion 53 is located at the bottom of the diversion plate 1 and there are multiple third protrusions 53. The interval between the multiple third protrusions 53 forms the water outlet 4. The first protrusion 51 is located on the diversion plate 1 below the water inlet 2.
[0044] Specifically, the diversion protrusion 5 also includes a second protrusion 52, which is located between the first protrusion 51 and the third protrusion 53. The length of the first protrusion 51 is greater than the length of the second protrusion 52. It is understood that in other technical solutions, the second protrusion 52 may not be set according to actual needs.
[0045] Specifically, the intervals between multiple first protrusions 51 form a first water flow channel 61, and the intervals between multiple second protrusions 52 form a second water flow channel 62. The widths of the first water flow channel 61, the second water flow channel 62, and the outlet 4 decrease sequentially, forming a stepped diversion scheduling.
[0046] The stepped water distributor for the CEDI module in Embodiment 2 serves the same function as the stepped water distributor for the CEDI module in Embodiment 1, and will not be described again. The difference is that in Embodiment 2, the inlet 2 is located on the side of the diversion plate 1, so the water entering the water distributor will naturally have a greater impact force below the inlet 2 due to gravity. Therefore, in terms of structural design, there is no need for a diversion channel; only a diversion protrusion 5 is needed for buffering and a diversion block 7 is needed to divide the output water into multiple flow areas. In Embodiment 1, the inlet 2 is located in the middle of the diversion plate 1, so the water entering the water distributor will have an impact force in all directions inside the water distributor. Therefore, a diversion channel is needed to divert the water that just enters the water distributor to buffer the pressure.
[0047] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0048] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this application is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this application are within the scope of protection of this application. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this application.
Claims
1. A stepped water distributor for a CEDI module, characterized in that, It includes two matching and identical diversion plates (1). The diversion plate (1) is provided with an inlet (2), a diversion channel (3) and an outlet (4). The inlet (2) is located in the middle of the upper part of the diversion plate (1). The diversion channel (3) is located below the inlet (2) and there are multiple channels. The multiple channels (3) divide the diversion plate (1) into multiple water flow areas. Multiple diversion protrusions (5) are provided in the water flow areas.
2. The stepped water distributor for a CEDI module as described in claim 1, characterized in that, The diversion protrusion (5) includes a first protrusion (51), a second protrusion (52) and a third protrusion (53) arranged sequentially along the direction from the inlet (2) to the outlet (4). A plurality of the third protrusions (53) are arranged at the bottom of the diversion plate (1) and are distributed sequentially at intervals to form the outlet (4).
3. The stepped water distributor for a CEDI module as described in claim 2, characterized in that, A first water flow channel (61) is formed between multiple first protrusions (51), and a second water flow channel (62) is formed between multiple second protrusions (52). The widths of the first water flow channel (61), the second water flow channel (62), and the outlet (4) decrease sequentially.
4. The stepped water distributor for a CEDI module as described in claim 2, characterized in that, The first protrusion (51) is configured as a long strip structure and is adapted to the shape of the diversion channel (3). The length of the first protrusion (51) is greater than the length of the second protrusion (52).
5. The stepped water distributor for a CEDI module as described in claim 2, characterized in that, The second protrusion (52) is configured as a circular protrusion structure, and the spacing between the multiple second protrusions (52) is the same.
6. The stepped water distributor for a CEDI module as described in claim 1, characterized in that, The diversion channel (3) is configured as a diversion block (7) at one end near the outlet (4), and the diversion block (7) divides the area formed by the outlet (4) into multiple outlet areas.
7. A stepped water distributor for a CEDI module, characterized in that, It includes two matching and identical diversion plates (1). The diversion plates (1) are provided with an inlet (2), a diversion protrusion (5) and an outlet (4) from top to bottom. The inlet (2) is located on one side of the upper part of the diversion plate (1). A diversion block (7) is provided between the outlets (4). The diversion block (7) divides the area formed by the outlets (4) into multiple water outlet areas.
8. The stepped water distributor for a CEDI module as described in claim 7, characterized in that, The diversion protrusion (5) includes a first protrusion (51) and a third protrusion (53). The third protrusion (53) is disposed at the bottom of the diversion plate (1) and there are multiple third protrusions (53). The interval between the multiple third protrusions (53) forms the outlet (4). The first protrusion (51) is disposed on the diversion plate (1) below the inlet (2).
9. The stepped water distributor for a CEDI module as described in claim 8, characterized in that, The diversion protrusion (5) further includes a second protrusion (52), which is disposed between the first protrusion (51) and the third protrusion (53), and the length of the first protrusion (51) is greater than the length of the second protrusion (52).
10. The stepped water distributor for a CEDI module as described in claim 9, characterized in that, The intervals between the plurality of first protrusions (51) form a first water flow channel (61), and the intervals between the plurality of second protrusions (52) form a second water flow channel (62). The widths of the first water flow channel (61), the second water flow channel (62), and the outlet (4) decrease sequentially.