CN214810940U - Ion filtration column and drip washing liquid generator - Google Patents

Abstract

The utility model provides an ion filtration post and drip washing liquid generator, the ion filtration post contains: a housing; the first chamber and the second chamber are positioned inside the shell, the first chamber is filled with a first separation material, and the second chamber is filled with a second separation material; a first filter disposed between the first chamber and the second chamber, the first filter blocking the first separation material and the second separation material and allowing the sample fluid to pass through. The ion filtering column can take the space occupation problem and the ion filtering effect into consideration.

Description

Ion filtration column and drip washing liquid generator

Technical Field

The utility model relates to an ion analysis technical field specifically is an ion filter column and drip washing liquid generator.

Background

In an apparatus with higher requirement on water quality, such as a leaching solution generator, the ion filtration column can effectively adsorb anions and cations in water, and has a good effect in the process of further deionization treatment of water, so that the ion filtration column is widely researched and used.

In the existing ion filtration column, if anion and cation in water need to be filtered, two ion filtration columns, namely an anion filtration column and a cation filtration column, are usually needed, wherein a fluid outlet of one ion filtration column is communicated with a fluid inlet of the other ion filtration column to respectively filter the anion and the cation, so that the operation is complicated, the cost is high, and the required period for filtering is long.

In contrast, a complete filtration system has been proposed in which two filtration columns are designed in the same system and filtration is performed in parallel, thereby simplifying the installation procedure, reducing the equipment cost, and reducing the space occupied by the apparatus (see, for example, patent document 1).

For another example, a multistage filtration column has been proposed which provides a highly integrated filtration column, occupies a small space, and has a good filtration effect (for example, see patent document 2).

Documents of the prior art

Patent document

Patent document 1: CN207957948U

Patent document 2: CN207671796U

However, the ion filtration system is designed and applied by using two ion filtration columns as a set, and in order to achieve a good filtration effect, only one material is generally filled in the columns. Because long-time use can lead to the filler material to become invalid, two ion filter columns need be changed simultaneously during the change, and the manufacturing cost of equipment in earlier stage and the cost of changing filter column in later stage are comparatively expensive.

In addition, in order to filter different kinds of ions, ion filtering columns for filtering different kinds of ions may be connected in series in the same flow channel. However, if the fluid outlet of one ion filtration column is connected to the fluid inlet of the other ion filtration column, and different separation materials are filled in the two ion filtration columns, the problems of large occupied space and difficult integration can be caused; if two different separation materials are filled into the same ion filter column, the different separation materials can influence each other, so that the filtering effect is reduced.

Therefore, an object of the utility model is to disclose an ion filtration post, compromise space occupation problem and ion filtration's effect.

Disclosure of Invention

Occupy the problem that is difficult to compromise with the ion filter effect to the space that exists among the prior art, the utility model provides an ion filter column, include: a housing; a first chamber located inside the housing and filled with a first separation material, a second chamber located inside the housing and filled with a second separation material; a first filter sheet located between the first chamber and the second chamber for blocking the first separation material and the second separation material and allowing the sample fluid to pass through.

Therefore, the utility model discloses a set up first cavity and second cavity simultaneously in single ion filtration post, the fluid that has filtered in the first cavity continues to filter through the second cavity, and the separation material can not pass through first filter disc to the realization is in single ion filtration post, simultaneously to the filtration of different kind ion or material. Because only the lamellar first filter disc is used for separating the first chamber from the second chamber, the number and the volume of parts required for communicating different ion filter columns in the prior art are greatly reduced, and the space occupation of the ion filter columns is reduced. Through the mode, the ion filtering column can take space occupation and ion filtering effects into consideration.

Furthermore, the first separation material is anion exchange resin, the second separation material is cation exchange resin, the anion exchange resin is filled in the first cavity, and the cation exchange resin is filled in the second cavity, so that the ion filtration can have the filtration function for anions and cations on the premise of occupying small space.

Further, the first filter sheet is of a porous structure. The first filter disc with the porous structure can be matched with the blocking requirements of different types of separation materials and the passing requirement of sample fluid through the adjustment of the pore size, and the universality is good.

Further, the sample fluid that can pass through the first filter is a liquid or a gas. The ion filtration column may be adapted for ion filtration in liquids or gases.

Further, the shell comprises a front end cover and a rear end cover, a front capillary flow passage is arranged in the front end cover and is communicated with the upstream flow path and the first cavity, a rear capillary flow passage is arranged in the rear end cover and is communicated with the downstream loop and the second cavity. The flow velocity of liquid or gas in passing the ion filter column can be reduced by the front capillary flow channel and the rear capillary flow channel, and the filtering effect can be improved by reducing the flow velocity of gas.

Furthermore, the shell also comprises a first cylinder, a front end cover and a first filter sheet which enclose a first cavity together, and a second cylinder, a rear end cover and the first filter sheet enclose a second cavity. The shell structure with the first column body and the second column body which can be separated can be detached and refilled when the separating material in any one of the first column body and the second column body is invalid, and the use economy of the ion filter column is effectively improved.

Further, the ion filtration column further comprises a second filter disc arranged between the front end cover and the first chamber and between the rear end cover and the second chamber. The second filter sheet can further filter out impurities in a portion of the fluid and prevent the separated material from leaking to other components.

Further, front end housing, first cylinder, second cylinder, rear end cap link to each other in proper order, all utilize threaded connection portion interconnect between the adjacent two. The threaded connection further facilitates the assembly of the ion filtration column.

Furthermore, the front end cover, the first cylinder, the second cylinder and the rear end cover are provided with a protruding part at one end part close to the threaded connection part, and the protruding part is fixedly abutted to the first filter sheet or the second filter sheet. Through the mode that the protruding part is fixed with the filter disc butt, when utilizing threaded connection portion assembly adjacent part, the butt between protruding part and the filter disc can further strengthen the sealed effect of threaded connection portion, prevents that fluid from leaking from the ion filter column.

The utility model also provides an elution liquid generator with ion filter column.

Drawings

FIG. 1 is a view showing an appearance structure of an ion filtration column according to an embodiment of the present invention;

fig. 2 is an internal cross-sectional view of an ion filtration column according to an embodiment of the present invention.

Reference numerals:

1 outer cover

2 first chamber

3 second Chamber

4 first filter disc

5 second filter sheet

6 threaded connection

7 projection

10 front end cap

11 rear end cap

12 first cylinder

13 second column

100 front capillary channel

110 rear capillary channel

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present application, it is to be understood that the terms "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the indicated orientations and positional relationships based on the orientation shown in the drawings for convenience in describing the application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and are not to be considered limiting of the application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The present embodiment first provides an ion filtration column for filtering ions in a sample fluid, comprising a housing 1, a first chamber 2, a second chamber 3 and a first filter 4. Wherein, first chamber 2 and second chamber 3 are located inside shell 1, and first cavity 2 is filled with first separation material, and second cavity 3 is filled with second separation material. The first filter 4 is disposed between the first chamber 2 and the second chamber 3, and the first filter 4 functions to block the first separation material and the second separation material and allows the sample fluid to pass therethrough.

Therefore, the utility model discloses a set up first cavity 2 and second cavity 3 simultaneously in single ion filter column, the fluid that has filtered in the first cavity 2 continues to filter through second cavity 3, and the separation material can not pass through first filter disc 4 to the realization is in single ion filter column, filters different kind ion or material simultaneously. Because only the lamellar first filter disc 4 is used for separating the first chamber 2 and the second chamber 3, the number and the volume of parts required for communicating different ion filter columns in the prior art are greatly reduced, and the occupied space of the ion filter columns is reduced. Therefore, the ion filtering column can take space occupation and ion filtering effect into consideration.

Through the mode, the original two ion filtering columns connected in parallel or in series are simplified into one ion filtering column, a plurality of cavities are arranged in the ion filtering column, different cavities are separated by the aid of the lamellar first filter disc 4, and the same filtering effect is achieved on the premise that the occupied space is reduced.

Specifically, referring to fig. 1, fig. 1 is an external structural view of an ion filtration column in the present embodiment, the ion filtration column provided in the present embodiment includes a housing 1, and the housing 1 further includes a front end cover 10, a first column 12, a second column 13, and a rear end cover 11, which are sequentially connected end to end. Particularly, the tails of the front end cover 10, the first cylinder 12 and the second cylinder 13 are all provided with threaded connection parts, and are respectively in matched connection with the threaded connection parts at the heads of the first cylinder 12, the second cylinder 13 and the rear end cover 11, and the process of assembling each part of the ion filter column can be more convenient by adopting the threaded connection mode.

The internal structure of the ion filtration column can be referred to fig. 2, and fig. 2 is a sectional view of the ion filtration column in this embodiment. As shown in fig. 2, the main structure of the ion filtration column includes a housing 1, a first chamber 2, a second chamber 3, a first filter 4, a second filter 5, and a threaded connection 6.

The housing 1 includes a front cover 10, a rear cover 11, a first column 12 and a second column 13, as shown by the hatched area in fig. 2. The overall structure of the housing 1 can be prism, cylinder, or designed into a proper shape according to actual needs. The housing 1 has good requirements for mechanical strength, thermal stability and chemical stability, and the material of the housing 1 should not be easily corroded and be easily processed and molded, for example, polymer materials such as PVC material and ABS resin, or materials such as glass and stainless steel can be used. The front end cover 10, the first column 12, the second column 13 and the rear end cover 11 of the shell 1 are tightly connected, the sealing performance is good, and fluid is not easy to leak.

The first chamber 2 is located inside the housing 1, is a hollow portion of the first column 12, and is enclosed by the first column 12, the front end cover 10, and the first filter 4. The second chamber 3 is a hollow part of the second cylinder 13, and the second cylinder 13, the rear end cover 11 and the first filter 4 jointly enclose the second chamber 3. The first chamber 2 is filled with a first separation material, as indicated by the cross-hatched area in the first chamber 2 in fig. 2, and the second chamber 3 is filled with a second separation material, as indicated by the cross-hatched area in the second chamber 3 in fig. 2, the first and second separation materials being used for filtering or separating the components. The ion filter column provided by the embodiment adopts the structure that the front end cover 10, the first column body 12, the second column body 13 and the rear end cover 11 are all detachable, when the separation material filled in any one of the first chamber 2 or the second chamber 3 is invalid, the ion filter column can be wholly detached and then the separation material is refilled, and the use economy of the ion filter column is effectively improved.

In some embodiments of the present invention, the first separation material filled in the first chamber 2 may be an anion exchange resin, and may also be a solid material for filtering or separating components. The anion exchange resin may be an anion resin containing strongly basic groups, such as quaternary ammonium groups. In other embodiments of the present invention, the anion exchange resin can also be a weakly basic anion resin containing weakly basic groups, such as primary, secondary or tertiary amine groups, the positively charged groups of which can be adsorbed to other anions in a fluid (e.g., solution) to effect anion exchange.

In some embodiments of the present invention, the second separation material filled in the second chamber 3 may be cation exchange resin, and may also be solid material for filtering or separating components. The cation exchange resin may be a strongly acidic cation exchange resin such as a sulfonic acid group having a large number of strongly acidic groups. In other embodiments of the present invention, the cation exchange resin may also be a weakly acidic cation exchange resin, such as a carboxyl group containing weakly acidic groups. The negatively charged groups of such cation exchange resins can be adsorptively bound to other cations in a fluid (e.g., a solution) to produce cation exchange.

In this embodiment, the first chamber 2 is filled with anion exchange resin, and the second chamber 3 is filled with cation exchange resin, but in other embodiments of the present invention, the first chamber 2 may be filled with cation exchange resin, and the second chamber 3 may be filled with anion exchange resin.

The first filter 4 is located between the first chamber 2 and the second chamber 3, and is mainly used for blocking the first separation material and the second separation material and allowing the sample fluid to pass through. In some embodiments of the present invention, first filter element 4 has a porous structure with a pore size smaller than the diameter of the first and second separation materials and larger than the diameter of the fluid. The first filter disc 4 is selected according to different fluids, so that the blocking requirements of different types of separation materials and the passing requirements of sample fluids are met, the number and the volume of parts required for communicating different ion filter columns in the prior art are reduced, and the occupied space of the ion filter columns is reduced. In some embodiments of the present invention, the first filter sheet 4 may be a polymer material with ion exchange function, such as an ion exchange membrane having selective permeability to ions, or a bipolar membrane. The first filter sheet 4 is fixed between the first chamber 2 and the second chamber 3, and can be set at a proper position according to the filtering speed and the filtering effect of the first separation material and the second separation material on the fluid, so that the filtering effect is optimal. In some embodiments of the present invention, if the first filter 4 is disposed at the middle position of the first chamber 2 and the second chamber 3, in other words, the first chamber 2 and the second chamber 3 are the same length chambers, so that the first cylinder 12 and the second cylinder 13 can be used in common, and in addition, the first filter 4 can be disposed at a specific position between the first chamber 2 and the second chamber 3.

The front end cap 10 in the housing 1 includes a front capillary flow passage 100 and the rear end cap 11 includes a rear capillary flow passage 110. The front capillary channel 100 in the front end cap 10 communicates with the upstream flow path (not shown) and the first chamber 2, and the rear capillary channel 110 in the rear end cap 11 communicates with the downstream flow path (not shown) and the second chamber 3. The front capillary 100 and the rear capillary 110 can reduce the flow rate of liquid or gas passing through the ion filtration column, and by reducing the gas velocity, the filtration effect can be improved. The fluid in the ion filtration column may be water, carrier gas, etc. The utility model discloses an among some embodiments, the flow path structure that links to each other with preceding capillary 100 in the front end housing 10 is the narrowing gradually, is trapezoidal distribution for fluid has the process of buffering when passing through the upper reaches flow path, in order to prevent that the fluid entry velocity of flow is too fast, causes splashing of fluid when capillary 100 before the process, leads to fluidic loss. The downstream circuits connected to the rear capillary flow passage 110 in the rear end cap 11 are gradually wider and also trapezoidal in shape. The front capillary channel 100 and the rear capillary channel 110 in some embodiments of the present invention may be capillary glass or may be metal tubes of a pinhole grade.

In other embodiments of the present invention, a sample injector (not shown) may be further disposed in the front end cover 10, so that the fluid in the front stage can smoothly enter the ion filter column, a sample injector (not shown) is disposed in the rear end cover 11, and the sample injector performs dust-free treatment, thereby ensuring that the filtered fluid does not introduce new ions or impurities when flowing through the rear end cover 11.

The first cylinder 12 and the second cylinder 13 in the housing 1, which mainly serve as outer carriers for the hollow parts of the first chamber 2 and the second chamber 3, may be of a cylinder or barrel structure. The first cylinder 12 and the second cylinder 13 are individually detachable to facilitate cleaning and post-replacement of the separated material, and the first cylinder 12 and the second cylinder 13 are connected together as independent parts without interference with each other.

The ion filtration column further comprises a second filter 5 arranged between the front end cap 10 and the first chamber 2, and between the rear end cap 11 and the second chamber 3. Second filter sheet 5 can further filter out impurities in a part of the fluid and prevent the separated material from leaking to other parts. The pore size of second filter 5 is required to be smaller than the diameter of the separation material and larger than the diameter of the fluid. The second filter sheet 5 is selected according to different fluids, the fluid is water in the embodiment, the second filter sheet 5 can be a metal net which is made of metal nets and supporting nets with different meshes through a wrapping process, and the filter material has the characteristics of large flow, high filtering efficiency and the like, and for example, the filter material is a phosphor copper net, a stainless steel plain net, a twill net or a stainless steel mat type net. The second filter sheet 5 may be a single layer or may be a plurality of layers. In some embodiments of the present invention, the shape of the second filter 5 can match the filter of the corresponding shape according to the shapes of the first cylinder 12 and the second cylinder 13, and can be circular, rectangular, oval, etc.

Front end housing 10, first cylinder 12, second cylinder 13, rear end cap 11 of ion filter post link to each other in proper order, utilize threaded connection 6 interconnect between the adjacent two, make first cylinder 12 embedding front end cap 10 in through threaded connection 6, during second cylinder 13 embedding rear end cap 11. The equivalent friction angle of the threaded connection part 6 should be large, so that reliable connection is realized and looseness is prevented. To ensure good sealing without leakage of fluid, a gasket (not shown) may be added inside the threaded connection 6. The shape of the threaded connection 6 and of the gasket (not shown) can be designed according to the cross-sectional shape of the first cylinder 12 and of the second cylinder 13, the diameter of which is directly adjusted according to the first cylinder 12 and to the second cylinder 13 in order to optimize the sealing effect thereof. The threaded connection part 6 can be a bolt in the embodiment, threads do not need to be cut on a connected piece, the limitation of the material of the connected piece is avoided, the structure is simple, the dismounting and the mounting are convenient, and the assembly of the ion filter column is further facilitated by the threaded connection mode. The gasket (not shown) in this embodiment may be a non-metal gasket such as asbestos, rubber, synthetic resin, or the like.

The front end cover 10, the first column body 12, the second column body 13 and the rear end cover 11 of the ion filter column are all provided with a protruding part 7 at one end part close to the threaded connection part 6, and the protruding part 7 is fixedly connected with the first filter sheet 4 or the second filter sheet 5 in an abutting mode. When the adjacent components are assembled by using the threaded connection part 6, the abutting between the protruding part 7 and the filter disc can further enhance the sealing effect of the threaded connection part 6 and prevent the fluid from leaking from the ion filtration column.

The utility model provides an ion filtration post can be applied to the drip irrigation liquid generator, provides a drip irrigation liquid generator with ion filtration post, saves the occupation space and the part quantity of drip irrigation liquid generator, reduction in production cost.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. An ion filtration column for filtering ions in a sample fluid, the ion filtration column comprising:

a housing;

the first chamber and the second chamber are positioned inside the shell, the first chamber is filled with a first separation material, and the second chamber is filled with a second separation material;

a first filter disposed between the first chamber and the second chamber, the first filter blocking the first separation material and the second separation material and allowing the sample fluid to pass through.

2. The ion filtration column of claim 1, wherein the first separation material is an anion exchange resin and the second separation material is a cation exchange resin.

3. The ion filtration column of claim 1, wherein the first filter is a porous structure.

4. An ion filtration column according to claim 3, wherein the sample fluid that can pass through the first filter is a liquid or a gas.

5. The ion filtration column of claim 1, wherein the housing comprises:

a front end cap having a front capillary flow passage therein, the front capillary flow passage communicating an upstream flow path with the first chamber;

and the rear end cover is internally provided with a rear capillary flow passage which is communicated with the downstream flow path and the second cavity.

6. The ion filtration column of claim 5, wherein the housing further comprises:

the first cylinder, the front end cover and the first filter disc jointly enclose the first chamber;

the second cylinder, the rear end cover and the first filter disc jointly enclose the second chamber.

7. The ion filtration column of claim 6, further comprising a second filter disposed between the front end cap and the first chamber, and between the back end cap and the second chamber.

8. The ion filtration column of claim 7, wherein the front end cap, the first column, the second column, and the rear end cap are connected in series, and wherein adjacent two are connected to each other by a threaded connection.

9. The ion filtration column of claim 8, wherein the front end cap, the first column body, and the second column body are each provided with a protrusion at an end proximate to the threaded connection, the protrusion being secured in abutment with the first filter element or the second filter element.

10. A eluate generator, comprising an ion filtration column of any of claims 1-9.

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