Ion exchange system

Abstract

The invention provides an ion exchange system, and relates to the technical field of deionization equipment, the ion exchange system comprises an ion exchange container, a trap and a tubular filter, the ion exchange container comprises an ion exchange cavity, a first inlet and a first outlet, the first inlet and the first outlet are communicated with the ion exchange cavity, and the ion exchange cavity is used for filling an ion exchange material; the trap comprises a trapping containing cavity, a filter element arranged in the trapping containing cavity, and a second inlet and a second outlet which are communicated with the trapping containing cavity; the tubular filter comprises a conveying pipeline and a first filtering structure arranged in the conveying pipeline, and the conveying pipeline is communicated with the first outlet and the second inlet. By quantitatively controlling the filling amount of the ion exchange material, excessive filling of the ion exchange material is avoided, so that the removal amount of other ions is reduced, and the ion exchange effect is improved. Moreover, the ion exchange material in the ion exchange cavity is regularly replaced, so that regeneration operation is not needed, and regeneration liquid and washing water do not need to be consumed.

Description

Technical Field

[0001] This invention relates to the field of deionization equipment technology, and in particular to an ion exchange system. Background Technology

[0002] In water treatment, ion exchange systems can quantitatively remove ions from water, thereby improving water quality. Ion exchange resin is a polymer material with unique ion exchange properties, making it widely used in ion exchange systems. Ion exchange systems typically use overfilled resin tanks. When removing ions present in small quantities in the water, the excess resin in the tank not only removes the target ions but also exchanges and removes various other ions simultaneously, significantly increasing the ion content in the resin and thus reducing the system's lifespan. To extend the resin tank's lifespan, regeneration systems are often included. However, after regeneration, a large amount of water is needed to flush the resin tank until its physicochemical properties stabilize, consuming a significant amount of regenerant and generating substantial amounts of flushing water. Therefore, improving the removal efficiency of target ions while reducing the consumption of regenerant and flushing water is a pressing technical challenge. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide an ion exchange system for improving the removal effect of target ions and reducing the consumption of regeneration solution and rinsing water.

[0004] The above-mentioned objective of this invention can be achieved by the following technical solution: This invention provides an ion exchange system, comprising:

[0005] An ion exchange container, the ion exchange container including an ion exchange cavity having a first volume, and a first inlet and a first outlet communicating with the ion exchange cavity, the ion exchange cavity being used to fill ion exchange material;

[0006] A trap, the trap including a trapping chamber having a second volume, a filter element disposed in the trapping chamber, and a second inlet and a second outlet communicating with the trapping chamber;

[0007] A tubular filter, comprising a delivery pipeline and a first filter structure disposed in the delivery pipeline, the delivery pipeline connecting a first outlet and a second inlet.

[0008] In a preferred embodiment of the present invention, the first filter structure includes a first filter screen, which is disposed in the conveying pipeline.

[0009] In a preferred embodiment of the present invention, the first filter screen is arranged in a cylindrical shape to form a filter cartridge, the filter cartridge is inserted into the conveying pipeline, and the opening of the filter cartridge is located close to the ion exchange container.

[0010] In a preferred embodiment of the present invention, a plurality of first filter screens are provided, and the mesh count of each first filter screen gradually increases along the conveying direction of the conveying pipeline.

[0011] In a preferred embodiment of the present invention, a second filter structure is further included, which is disposed in the ion exchange chamber and covers the first outlet.

[0012] In a preferred embodiment of the present invention, the second filter structure includes a second filter screen, which is disposed over the first outlet.

[0013] In a preferred embodiment of the present invention, the mesh count of the second filter screen is not less than 200 mesh.

[0014] In a preferred embodiment of the present invention, the filter element is either a polypropylene filter element or a polyester filter element.

[0015] In a preferred embodiment of the present invention, the filtration accuracy of the filter element is no greater than 0.2 mm.

[0016] In a preferred embodiment of the invention, the ion exchange vessel is detachably connected to the tubular filter; and / or, the trap is detachably connected to the tubular filter.

[0017] In a preferred embodiment of the present invention, the first inlet is disposed at the top of the ion exchange container, the first outlet is disposed at the bottom of the ion exchange container, the first outlet is provided with a snap-fit ​​structure, and the first outlet is detachably snapped to one end of the delivery pipeline through the snap-fit ​​structure.

[0018] In a preferred embodiment of the present invention, the second inlet is disposed on the side wall of the trap, and the second outlet is disposed at the bottom of the trap; the liquid in the conveying pipeline can flow through the second inlet to the side wall of the filter element for filtration, and the filtered liquid flows through the middle of the filter element into the second outlet.

[0019] The technical solution of the present invention has the following significant beneficial effects:

[0020] In use, the ion exchange system of this invention selects the appropriate ion exchange material based on the type of ions to be removed and fills the ion exchange chamber of the ion exchange container with the ion exchange material. Furthermore, based on the selected type of ion exchange material, the mesh size of the first filter structure in the tubular filter and the filtration precision of the filter element in the trap can be further determined, thereby ensuring that the ion exchange material does not leak. This invention effectively removes target ions by controlling the type of ion exchange material, and by quantitatively controlling the capacity of the ion exchange chamber, it controls the filling amount of ion exchange material, avoiding overfilling, which helps reduce the removal of other ions and improves the ion exchange effect.

[0021] Furthermore, the ion exchange chamber in this invention can be detachably connected to the tubular filter, allowing operators to select the appropriate volume of ion exchange material according to the removal requirements of different ions, thereby avoiding overfilling and reducing waste. In particular, when this invention is used to remove ions present in small quantities in water, the ion exchange material in the ion exchange chamber can be replaced periodically, eliminating the need for regeneration operations and thus reducing the consumption of large amounts of regeneration solution and rinsing water. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0024] Figure 1 This is a schematic diagram of one embodiment of the ion exchange system described in this invention.

[0025] The reference numerals in the above figures are as follows:

[0026] 100. Ion exchange container; 110. Ion exchange chamber; 120. First inlet; 130. First outlet; 140. Second filtration structure;

[0027] 200, trap; 210, trapping chamber; 220, filter element; 230, second inlet; 240, second outlet;

[0028] 300. Tubular filter; 310. Delivery pipeline; 320. First filter structure;

[0029] 400. Snap-fit ​​structure;

[0030] 500. Drainage pipes. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please refer to the following: Figure 1 As shown, an embodiment of the present invention provides an ion exchange system, which includes an ion exchange container 100, a trap 200, and a tubular filter 300. The ion exchange container 100 includes an ion exchange cavity 110 with a first volume, and a first inlet 120 and a first outlet 130 communicating with the ion exchange cavity 110. The ion exchange cavity 110 is used to fill ion exchange material. The trap 200 includes a trapping cavity 210 with a second volume, a filter element 220 disposed in the trapping cavity 210, and a second inlet 230 and a second outlet 240 communicating with the trapping cavity 210. The tubular filter 300 includes a delivery pipeline 310 and a first filter structure 320 disposed in the delivery pipeline 310. The delivery pipeline 310 communicates with the first outlet 130 and the second inlet 230.

[0033] Overall, when using this ion exchange system, the corresponding ion exchange material is selected according to the type of ions to be removed, and the ion exchange material is filled into the ion exchange chamber 110 of the ion exchange container 100. Furthermore, based on the type of ion exchange material selected, the mesh size of the first filter structure 320 in the tubular filter 300 and the filtration accuracy of the filter element 220 in the trap 200 can be further determined, thereby ensuring that the ion exchange material does not leak.

[0034] This invention effectively removes target ions by controlling the type of ion exchange material, and by quantitatively controlling the capacity of the ion exchange cavity 110, it is easy to control the filling amount of ion exchange material, avoid overfilling of ion exchange material, and thus help reduce the removal of other ions and improve the ion exchange effect.

[0035] In embodiments of the present invention, designers may adjust the specific diameter of the delivery pipeline 310 and the specific size of the first and second volumes according to usage needs, without making specific numerical limitations.

[0036] For example, in one feasible embodiment, the diameter of the delivery pipeline 310 can be set to 63.5 mm, the ion exchange cavity 110 can be set to a cylindrical shape, and the bottom diameter of the ion exchange cavity 110 is larger than the diameter of the delivery pipeline 310.

[0037] Designers can adjust the filling height of the ion exchange chamber 110 according to the needs of use. For example, the ion exchange chamber 110 can be filled with ion exchange material to one-half or two-thirds of its height. No specific numerical limit is set here.

[0038] In embodiments of the present invention, designers may adjust the specific composition of the ion exchange material according to the needs of use, and no specific limitations are imposed here.

[0039] Preferably, the ion exchange material is an ion exchange resin. Ion exchange resins contain functional groups, have a network structure, and are insoluble polymeric compounds.

[0040] Because ion exchange resins are generally in spherical granular form, leakage is a potential problem during use. Furthermore, ion exchange resins are also prone to breakage during use, easily producing small-sized fragments.

[0041] If the debris is not filtered, it can easily be discharged with the water and affect the water quality. To avoid leakage, in an embodiment of the present invention, the first filter structure 320 includes a first filter screen, which is disposed in the conveying pipeline 310.

[0042] By placing a first filter screen in the delivery pipeline 310, the liquid in the delivery pipeline 310 can be filtered, thereby helping to prevent leakage of the ion exchange material in the ion exchange container 100.

[0043] In one feasible embodiment, the first filter screen is arranged in a cylindrical shape to form a filter cartridge, which is inserted into the conveying pipeline 310, and the opening of the filter cartridge is located close to the ion exchange container 100.

[0044] By placing the filter cartridge in the delivery pipeline 310, the filter cartridge can filter and trap leaked ion exchange material, thereby preventing the ion exchange material from being discharged with the treated water and affecting the user's use.

[0045] Furthermore, by setting the first filter screen as a filter cartridge with a certain cavity, the leaked ion exchange material can be collected more effectively.

[0046] Of course, designers can adjust the specific structure of the filter cartridge according to the needs of use, and no specific restrictions are imposed here.

[0047] In other feasible embodiments, multiple first filter screens are provided, and the mesh size of each first filter screen gradually increases along the conveying direction of the conveying pipeline 310.

[0048] By setting up multiple first filter screens, these screens can work together in coordination, thereby significantly improving the filtration effect.

[0049] Furthermore, by gradually increasing the mesh size of each first filter screen along the conveying direction of the conveying pipeline 310, the filtration capacity of each first filter screen is improved in turn, which helps to further improve the interception capacity of ion exchange materials of different particle sizes.

[0050] Designers can adjust the specific mesh size of the first filter screen according to usage needs; no specific restrictions are imposed here.

[0051] In an embodiment of the present invention, a second filter structure 140 is also included. The second filter structure 140 is disposed in the ion exchange chamber 110 and covers the first outlet 130.

[0052] By providing a second filter structure 140 in the ion exchange chamber 110, the second filter structure 140 can provide support for the ion exchange material, especially the granular ion exchange resin, thereby improving the stability of the ion exchange material during use.

[0053] Furthermore, the second filtration structure 140 can perform a filtration function, allowing water to pass freely through it while intercepting the ion exchange material in the ion exchange chamber 110, thereby significantly reducing the amount of ion exchange material leaking downstream.

[0054] In one possible embodiment, the second filter structure 140 includes a second filter screen that covers the first outlet 130.

[0055] Designers can adjust the specific mesh size of the second filter screen according to usage requirements; no specific limitations are imposed here. Preferably, when the ion exchange material is granular ion exchange resin, the mesh size of the second filter screen is not less than 200 mesh.

[0056] The larger the mesh size of the second filter screen, the stronger its filtration capacity, which can effectively reduce the leakage of ion exchange resin.

[0057] Of course, in other feasible embodiments, the designer can adjust the specific structure of the second filter structure 140 according to the needs of use. For example, the second filter structure 140 can also be set as a membrane filter structure or a filter cartridge filter structure, etc., without specific limitations.

[0058] In one feasible embodiment of the present invention, the filter element 220 is a polypropylene filter element. The polypropylene filter element is a new generation of filtration element, formed by melting polypropylene particles, spraying them into fine fibers, and tightly winding them into a white tubular shape.

[0059] In another feasible embodiment of the present invention, the filter element 220 is a polyester filter element. The polyester filter element has a unique design with recessed pleats, giving it good filtration efficiency and meeting the filtration needs of fine particles.

[0060] Of course, in other feasible embodiments, designers may adjust the specific structure of filter element 220 according to the needs of use, and no specific limitations are made here.

[0061] Furthermore, by controlling the filtration precision of filter element 220, impurities or ion exchange materials in the water can be filtered out more effectively, thus helping to improve water quality. Designers can adjust the filtration precision of filter element 220 according to their needs; no specific limitations are set here.

[0062] Preferably, when the ion exchange material is a granular ion exchange resin, the filtration accuracy of the filter element 220 is no greater than 0.2 mm.

[0063] In embodiments of the present invention, the ion exchange container 100 is detachably connected to the tubular filter 300; and / or, the trap 200 is detachably connected to the tubular filter 300.

[0064] Preferably, the ion exchange container 100 is detachably connected to the tubular filter 300, and the trap 200 is also detachably connected to the tubular filter 300.

[0065] The detachable design facilitates quick assembly and disassembly of the ion exchange container 100, tubular filter 300, or trap 200, enabling timely maintenance of each component, improving maintenance efficiency, and facilitating cleaning of the ion exchange container 100, tubular filter 300, or trap 200.

[0066] Furthermore, by pre-setting multiple ion exchange containers 100 with different volumes, the system offers greater flexibility in use. Operators can select the appropriate ion exchange container 100 based on the removal requirements of different ions, thereby avoiding overfilling of ion exchange materials and reducing waste of ion exchange materials.

[0067] In particular, when the present invention is used to remove ions present in small amounts in water, the ion exchange material in the ion exchange chamber 110 is replaced periodically, thereby eliminating the need for regeneration operations and the consumption of large amounts of regeneration solution and the generation of large amounts of rinsing water.

[0068] Designers may adjust the connection between the ion exchange container 100, the tubular filter 300, or the trap 200 as needed, without making specific restrictions here.

[0069] In an embodiment of the present invention, a first inlet 120 is disposed at the top of an ion exchange container 100, a first outlet 130 is disposed at the bottom of an ion exchange container 100, and a snap-fit ​​structure 400 is provided on the first outlet 130. The first outlet 130 is detachably snapped to one end of a delivery pipeline 310 through the snap-fit ​​structure 400.

[0070] By setting the first inlet 120 at the top and the first outlet 130 at the bottom of the ion exchange container 100, the water to be treated can enter the ion exchange chamber 110 from top to bottom under the action of gravity and exchange ions with the ion exchange material, resulting in better performance.

[0071] Of course, in other feasible embodiments, the designers may adjust the positions of the first inlet 120 and the first outlet 130 according to the needs of use, and no specific restrictions are imposed here.

[0072] By providing a snap-fit ​​structure 400 at the first outlet 130, the first outlet 130 can be detachably snapped into one end of the delivery pipeline 310, resulting in better assembly and disassembly efficiency.

[0073] Specifically, the snap-fit ​​structure 400 includes a removable standard snap-fit ​​provided at the first outlet 130, which can be snapped into one end of the delivery pipeline 310 via the snap-fit.

[0074] Furthermore, a snap-fit ​​structure 400 can also be installed on the first inlet 120, which can quickly connect the first inlet 120 to the water supply pipeline.

[0075] Furthermore, a snap-fit ​​structure 400 is provided on the first inlet 120 and the first outlet 130, thereby enabling efficient disassembly of the ion exchange container 100 for replacement of the ion exchange container 100 or replacement of the ion exchange material in the ion exchange container 100.

[0076] Of course, in other feasible embodiments, designers can adjust the specific structure of the snap-fit ​​structure 400 according to the needs of use. For example, the snap-fit ​​structure 400 can be set as a clamp, etc., without specific limitations.

[0077] In an embodiment of the present invention, the second inlet 230 is disposed on the side wall of the trap 200, and the second outlet 240 is disposed at the bottom of the trap 200; the liquid in the conveying pipeline 310 can flow through the second inlet 230 to the side wall of the filter element 220 for filtration, and the filtered liquid flows into the second outlet 240 through the middle of the filter element 220.

[0078] By setting the second inlet 230 on the side wall of the collector 200 and the second outlet 240 at the bottom of the collector 200, the treated water can flow out of the collector 200 from top to bottom under the action of gravity, thus achieving better discharge efficiency.

[0079] Furthermore, the designers can connect the second outlet 240 to the drainage pipe 500, and use the drainage pipe 500 to lead out the treated water for further treatment.

[0080] The drainage pipe 500 can be set to the same diameter as the conveying pipe 310 to avoid affecting drainage efficiency. Of course, the drainage pipe 500 can also be set to a different diameter than the conveying pipe 310; no specific restrictions are imposed here.

[0081] Furthermore, the second outlet 240 is detachably connected to one end of the drainage pipe 500. Designers can adjust the detachable connection between the second outlet 240 and the drainage pipe 500 according to usage needs, such as by snap-fit, without specific limitations.

[0082] Of course, in other feasible embodiments, the designers may adjust the positions of the second inlet 230 and the second outlet 240 as needed, without making specific restrictions here.

[0083] In one feasible embodiment of the present invention, the water to be treated was tested. An ion exchange system was filled with 8cm high-strength alkaline macroporous anion exchange resin, and the water flow rate was set to a 1-minute replacement time with the ion exchange resin. Influent and effluent samples were taken for ion analysis, and the results are as follows:

[0084] water sample Inlet water sample Water sample Total dissolved solids (TDS), mg / L 181 183 Bromate, mg / L ND ND <![CDATA[Fluoride (calculated as F - ), mg / L]]> 0.24 0.22 <![CDATA[Oxygen consumption (calculated as O2), mg / L]]> 0.39 0.31 pH value 7.44 7.42 Strontium, μg / L 98.75 99.4 <![CDATA[Bromide (calculated as Br - ), mg / L]]> 0.0058 ND Chloride, mg / L 0.26 11

[0085] Table 1

[0086] As shown in Table 1, after the exchange, TDS, cations, pH, fluoride, oxygen consumption, and pH remained basically unchanged within the detection error range. Only the chloride and bromide that were exchanged increased and were effectively removed, respectively. Thus, the ion exchange system described in this invention can reduce the amount of other ions removed and improve the ion exchange effect.

[0087] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0088] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An ion exchange system, characterized in that, include: An ion exchange container, the ion exchange container including an ion exchange cavity having a first volume, and a first inlet and a first outlet communicating with the ion exchange cavity, the ion exchange cavity being used to fill ion exchange material; A trap, the trap including a trapping chamber having a second volume, a filter element disposed in the trapping chamber, and a second inlet and a second outlet communicating with the trapping chamber; A tubular filter, comprising a delivery pipeline and a first filter structure disposed in the delivery pipeline, the delivery pipeline connecting a first outlet and a second inlet.

2. The ion exchange system as described in claim 1, characterized in that, The first filter structure includes a first filter screen, which is disposed in the conveying pipeline.

3. The ion exchange system as described in claim 2, characterized in that, The first filter screen is arranged in a cylindrical shape to form a filter cartridge, which is inserted into the conveying pipeline, and the opening of the filter cartridge is located close to the ion exchange container.

4. The ion exchange system as described in claim 2, characterized in that, Multiple first filter screens are provided, and the mesh size of each first filter screen gradually increases along the conveying direction of the conveying pipeline.

5. The ion exchange system as described in claim 1 or 2, characterized in that, It also includes a second filter structure, which is disposed in the ion exchange chamber and covers the first outlet.

6. The ion exchange system as described in claim 5, characterized in that, The second filtration structure includes a second filter screen, which is placed over the first outlet.

7. The ion exchange system as described in claim 5, characterized in that, The mesh size of the second filter screen is not less than 200 mesh.

8. The ion exchange system as described in claim 1, characterized in that, The filter element is either a polypropylene filter element or a polyester filter element.

9. The ion exchange system as described in claim 1 or 8, characterized in that, The filtration accuracy of the filter element is no greater than 0.2mm.

10. The ion exchange system as described in claim 1, characterized in that, The ion exchange vessel is detachably connected to the tubular filter; and / or, the trap is detachably connected to the tubular filter.

11. The ion exchange system as described in claim 10, characterized in that, The first inlet is located at the top of the ion exchange container, and the first outlet is located at the bottom of the ion exchange container. The first outlet is provided with a snap-fit ​​structure, and the first outlet is detachably snapped to one end of the delivery pipeline through the snap-fit ​​structure.

12. The ion exchange system as described in claim 1, characterized in that, The second inlet is located on the side wall of the trap, and the second outlet is located at the bottom of the trap; the liquid in the delivery pipeline can flow through the second inlet to the side wall of the filter element for filtration, and the filtered liquid flows through the middle of the filter element into the second outlet.

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