CN220951334U - Water purifier - Google Patents

Abstract

The utility model provides a water purifier, and relates to the technical field of water purification. The water purifier comprises a reverse osmosis filter element and a direct current power supply, wherein the direct current power supply comprises an anode and a cathode, and the anode and the cathode are respectively connected with the reverse osmosis filter element; when the direct current power supply is electrified, an electric field can be generated inside the reverse osmosis filter element. The water purifier increases the resistance of the anions and cations on the raw water side of the reverse osmosis membrane to permeate the reverse osmosis membrane, reduces the probability of the anions and cations to permeate the reverse osmosis membrane, reduces the TDS value on the pure water side, and further reduces the TDS value of the first cup of water. Meanwhile, the reverse osmosis membrane provided by the utility model only needs to be added with a direct current power supply, can be suitable for application environments with smaller space, and reduces the cost of the water purifier.

Description

Water purifier

Technical Field

The application relates to the technical field of water purification, in particular to a water purifier.

Background

With the development of water purification technology, water purifiers are widely used. However, when the water purifier is in standby, the reverse osmosis membrane is immersed in concentrated water for a long time, so that water on the original water side of the reverse osmosis membrane permeates into water on the pure water side, the TDS (Total dissolved solids ) value of the water on the pure water side is close to the TDS value of the water on the original water side of the reverse osmosis membrane, and when the reverse osmosis water purifier is restarted to produce water, the TDS value of the first cup of water can greatly exceed the standard value.

At present, four schemes appear in reducing the TDS value of the first cup of water after the water purifier is restarted, the first pressure container method is that the water purifier adopting the pressure container method needs to be provided with a pressure container, the occupied space is larger, and the water purifier cannot be suitable for application environments with smaller space; the second pure water reflux method is basically a dilution technology, and the TDS value of the first cup of water is still higher; the third double-film flushing method is that the water purifier adopting the double-film flushing method occupies larger space, cannot be suitable for application environments with smaller space, and has complex internal waterway and higher cost; the fourth filter element water storage bin scheme is characterized in that the filter element structure of the water purifier of the filter element water outlet bin scheme is complex and the cost is high.

Disclosure of utility model

In view of the above, the present application provides a water purifier to solve the problems of large occupied space, high TDS desalination rate of the first cup of water, and high cost.

The application provides a water purifier, which comprises a reverse osmosis filter element and a direct current power supply, wherein the direct current power supply comprises a positive electrode and a negative electrode, and the positive electrode and the negative electrode are respectively connected with the reverse osmosis filter element;

When the direct current power supply is electrified, an electric field can be generated inside the reverse osmosis filter element.

Preferably, the reverse osmosis filter element comprises a reverse osmosis assembly comprising a membrane member and a central tube, the membrane member being wound around the outside of the central tube.

Preferably, the reverse osmosis filter element further comprises a first end cover and a second end cover, the first end cover and the second end cover are respectively fixed at two ends of the reverse osmosis component, one of the first end cover and the second end cover is connected with a positive electrode, and the other of the first end cover and the second end cover is connected with a negative electrode.

Preferably, the first end cap includes a first end cap body and a first conductive member extending from an outer sidewall of the first end cap body to an outside of the first end cap body, the first conductive member being connected to the positive electrode;

The second end cover comprises a second end cover body and a second conductive piece, the second conductive piece extends from the outer side wall of the second end cover body to the outer portion of the second end cover body, and the second conductive piece is connected with the negative electrode.

Preferably, a positioning groove is formed in the portion, located outside the membrane component, of the central tube, and the reverse osmosis filter element further comprises a sealing ring, wherein the sealing ring is arranged in the positioning groove.

Preferably, the reverse osmosis filter element further comprises a housing, the reverse osmosis assembly is located inside the housing, one of the housing and the central tube is connected with the positive electrode, and the other of the housing and the central tube is connected with the negative electrode.

Preferably, the positive electrode is connected to the center tube, and the negative electrode is connected to the case.

Preferably, the reverse osmosis filter element further comprises a housing and a cover, the cover is wound on the outside of the membrane member, the reverse osmosis assembly and the cover are both positioned inside the housing, one of the cover and the housing is connected with the positive electrode, and the other of the cover and the housing is connected.

Preferably, the positive electrode is connected to the cover, and the negative electrode is connected to the case.

Preferably, the water purifier further comprises a pre-filter element connected with the reverse osmosis filter element, and the pre-filter element is located on the upstream side of the reverse osmosis filter element.

In the use process of the water purifier, when the water purifier is stopped, a direct current power supply is started, an electric field is generated inside the reverse osmosis filter element, charged ions inside the filter element are started to be distributed towards two stages under the influence of the electric field force, anions are deflected towards the positive electrode, and cations are deflected towards the negative electrode, so that the ion distribution in a solution inside the reverse osmosis filter element is changed, and the concentration of the cations close to the negative electrode is higher, and the concentration of the anions close to the positive electrode is higher. If the ions on the raw water side penetrate through the reverse osmosis membrane, the electric field force needs to be overcome to do work. The water purifier increases the resistance of the anions and cations on the raw water side of the reverse osmosis membrane to permeate the reverse osmosis membrane, reduces the probability of the anions and cations to permeate the reverse osmosis membrane, reduces the TDS value on the pure water side, and further reduces the TDS value of the first cup of water. Meanwhile, the reverse osmosis membrane provided by the application only needs to be added with a direct current power supply, can be suitable for application environments with smaller space, and reduces the cost of the water purifier.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view showing the structure of a water purifier;

FIG. 2 shows a perspective view of a reverse osmosis cartridge in accordance with a first embodiment;

FIG. 3 shows a plan view of the reverse osmosis cartridge of the first embodiment;

FIG. 4 shows an exploded view of a reverse osmosis cartridge of the first embodiment;

FIG. 5 shows a cross-sectional view of a reverse osmosis cartridge in a first embodiment;

FIG. 6 shows a cross-sectional view of a reverse osmosis cartridge in a second embodiment;

FIG. 7 shows a perspective view of a reverse osmosis cartridge in a second embodiment;

FIG. 8 shows the electric field profile of a reverse osmosis cartridge in a second embodiment;

FIG. 9 shows a cross-sectional view of a reverse osmosis cartridge in a third embodiment;

fig. 10 shows the electric field distribution diagram of the reverse osmosis cartridge in the third embodiment.

Icon: 100-reverse osmosis filter element; 110-reverse osmosis module; a 111-film member; 112-a central tube; 120-a first end cap; 121-a first end cap body; 122-a first conductive member; 130-a second end cap; 131-a second end cap body; 132-a second conductive member; 140-a housing; 150-cover; 200-direct current power supply; 300-a pre-filter element; 400-tap.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, apparatus, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and/or systems described herein will be apparent after an understanding of the present disclosure. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but rather, obvious variations may be made upon an understanding of the present disclosure, other than operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided solely to illustrate some of the many possible ways of implementing the methods, devices, and/or systems described herein that will be apparent after understanding the present disclosure.

In the entire specification, when an element (such as a layer, region or substrate) is described as being "on", "connected to", "bonded to", "over" or "covering" another element, it may be directly "on", "connected to", "bonded to", "over" or "covering" another element or there may be one or more other elements interposed therebetween. In contrast, when an element is referred to as being "directly on," directly connected to, "or" directly coupled to, "another element, directly on," or "directly covering" the other element, there may be no other element intervening therebetween.

As used herein, the term "and/or" includes any one of the listed items of interest and any combination of any two or more.

Although terms such as "first," "second," and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first member, component, region, layer or section discussed in examples described herein could also be termed a second member, component, region, layer or section without departing from the teachings of the examples.

For ease of description, spatially relative terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to another element would then be oriented "below" or "lower" relative to the other element. Thus, the term "above … …" includes both orientations "above … …" and "below … …" depending on the spatial orientation of the device. The device may also be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. Singular forms also are intended to include plural forms unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" are intended to specify the presence of stated features, integers, operations, elements, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, and/or groups thereof.

Variations from the shapes of the illustrations as a result, of manufacturing techniques and/or tolerances, are to be expected. Accordingly, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shapes that occur during manufacture.

The features of the examples described herein may be combined in various ways that will be apparent upon an understanding of the present disclosure. Further, while the examples described herein have a variety of configurations, other configurations are possible as will be apparent after an understanding of the present disclosure.

The application provides a water purifier which comprises a reverse osmosis filter element 100 and a direct current power supply 200, as shown in fig. 1, wherein the direct current power supply 200 comprises an anode and a cathode, the anode and the cathode are respectively connected with the reverse osmosis filter element 100, and when the direct current power supply 200 is electrified, an electric field can be generated inside the reverse osmosis filter element 100. In the use process of the water purifier, when the water purifier is stopped, the direct current power supply 200 is started, an electric field is generated inside the reverse osmosis filter element 100, charged ions inside the filter element are influenced by the electric field force to start to be distributed towards two stages, anions are offset towards the positive electrode, and cations are offset towards the negative electrode, so that the ion distribution in a solution inside the reverse osmosis filter element 100 is changed, and the concentration of the cations close to the negative electrode is larger, and the concentration of the anions close to the positive electrode is larger. If the ions on the raw water side penetrate through the reverse osmosis membrane, the electric field force needs to be overcome to do work. The water purifier increases the resistance of the anions and cations on the raw water side of the reverse osmosis membrane to permeate the reverse osmosis membrane, reduces the probability of the anions and cations to permeate the reverse osmosis membrane, reduces the TDS value on the pure water side, and further reduces the TDS value of the first cup of water. Meanwhile, the reverse osmosis membrane of the application only needs to be added with the direct current power supply 200, can be suitable for application environments with smaller space, and reduces the cost of the water purifier.

Further, as shown in fig. 4, 5, 6 and 9, the reverse osmosis cartridge 100 includes a reverse osmosis module 110, the reverse osmosis module 110 includes a membrane member 111 and a central tube 112, the membrane member 111 may be formed by stacking a plurality of reverse osmosis membranes, and the membrane member 111 is wound around the outside of the central tube 112. The two different components in the reverse osmosis filter element 100 may be two inert electrodes, the positive electrode and the negative electrode of the direct current power supply 200 may be respectively connected with the two inert electrodes, the direct current power supply 200 is started to enable the two inert electrodes inside the reverse osmosis filter element 100 to generate a potential difference, so as to form an electric field, at this time, the two inert electrodes are equivalent to forming a capacitor inside the reverse osmosis filter element 100, the capacitor provides an electric field inside the reverse osmosis filter element 100, so as to provide resistance of the yin and yang ions on the raw water side to permeate through the reverse osmosis membrane, and the water purifier of the present application will be described in connection with embodiments one to three.

Example 1

As shown in fig. 2 to 5, the reverse osmosis cartridge 100 further includes a first end cap 120 and a second end cap 130, the first end cap 120 and the second end cap 130 being fixed to both ends of the reverse osmosis module 110, respectively, one of the first end cap 120 and the second end cap 130 being connected to the first end cap 120, and the other of the first end cap 120 and the second end cap 130 being connected such that an electric field is formed inside the reverse osmosis cartridge 100.

Further, the positive electrode is connected to the first end cap 120, and the negative electrode is connected to the second end cap 130. When the water purifier is stopped or standby, the direct current power supply 200 is started, the first end cover 120 is formed inside the filter element to be the positive electrode, the second end cover 130 is the electric field of the negative electrode, cations in the reverse osmosis filter element 100 are influenced by the electric field to deviate to the second end cover 130, anions are influenced by the electric field to deviate to the first end cover 120, and the effect of directional distribution of anions and cations in the reverse osmosis filter element 100 can be achieved, so that the probability that the anions and the cations penetrate through the reverse osmosis membrane is reduced, and the TDS value of the first cup of water is reduced.

Further, the first end cap 120 and the second end cap 130 are made of conductive materials, for example, the first end cap 120 and the second end cap 130 may be copper, aluminum, graphite, etc.

In the first embodiment, as shown in fig. 3 and 4, the first end cap 120 includes a first end cap body 121 and a first conductive member 122, the first conductive member 122 extends from an outer sidewall of the first end cap body 121 to an outside of the first end cap body 121, and the first conductive member 122 is connected to the positive electrode. The second end cap 130 includes a second end cap body 131 and a second conductive member 132, the second conductive member 132 extending from an outer sidewall of the second end cap body 131 to an outside of the second end cap body 131, the second conductive member 132 being connected to the negative electrode. The first end cap body 121 and the second end cap body 131 may have the same structure as the two end caps of the existing reverse osmosis filter element 100, the first conductive member 122 and the second conductive member 132 are in a sheet shape, and the first conductive member 122 and the second conductive member 132 are provided with connection holes, so that the first end cap 120 and the second end cap 130 are connected with the positive electrode and the negative electrode respectively.

In addition, the center tube 112 is provided with a seating groove at a portion thereof located outside the membrane member 111, and the reverse osmosis cartridge 100 further includes a sealing ring disposed in the seating groove. After the first and second end caps 120 and 130 are installed at both ends of the reverse osmosis module 110, waterproof tape is used to wrap around the interfaces of the first and second end caps 120 and 130 and the membrane member 111 to secure sealability.

Example two

As shown in fig. 6 and 7, the reverse osmosis cartridge 100 further includes a case 140, the reverse osmosis module 110 is disposed inside the case 140, one of the center tube 112 and the case 140 is connected to the positive electrode, and the other of the center tube 112 and the case 140 is connected to the negative electrode, so that an electric field is formed inside the reverse osmosis cartridge 100.

Further, the positive electrode is connected to the center tube 112, and the negative electrode is connected to the case 140. When the water purifier is stopped or standby, the direct current power supply 200 is started, as shown in fig. 8, the central tube 112 is formed inside the reverse osmosis filter element 100 and is used as a positive electrode, the shell 140 is used as an electric field of a negative electrode, cations in the reverse osmosis filter element 100 are influenced by the electric field to deviate to the shell 140, and anions are influenced by the electric field to deviate to the central tube 112, so that the effect of directional distribution of anions and cations in the reverse osmosis filter element 100 is achieved, the probability that the anions and the cations penetrate through the reverse osmosis membrane is reduced, and the TDS value of the first cup of water is reduced.

In the second embodiment, the central tube 112 and the housing 140 are made of conductive materials, for example, the central tube 112 and the housing 140 may be copper, aluminum, graphite, or the like.

Example III

As shown in fig. 9, the reverse osmosis cartridge 100 includes a cover 150, the cover 150 is wrapped around the outside of the reverse osmosis module 110, one of the cover 150 and the case 140 is connected to the positive electrode, and the other of the cover 150 and the case 140 is connected to the negative electrode, so that an electric field is formed inside the reverse osmosis cartridge 100.

Further, the positive electrode is connected to the cover 150, and the negative electrode is connected to the case 140. When the water purifier is stopped or standby, the direct current power supply 200 is started, as shown in fig. 10, a cover 150 is formed inside the reverse osmosis filter element 100 to serve as a positive electrode, a shell 140 serves as an electric field of a negative electrode, cations in the reverse osmosis filter element 100 are influenced by the electric field to deviate to the shell 140, anions are influenced by the electric field to deviate to the cover 150, and the effect of directional distribution of the anions and the cations in the reverse osmosis filter element 100 is achieved, so that the probability that the anions and the cations penetrate through the reverse osmosis membrane is reduced, and the TDS value of first cup water is reduced.

In the third embodiment, the envelope 150 and the housing 140 are made of conductive materials, for example, the envelope 150 and the housing 140 may be copper, aluminum, graphite, or the like.

In addition, in the first, second and third embodiments, the reverse osmosis filter cartridge 100 includes a raw water inlet, a pure water outlet and a concentrated water outlet, and the water purifier further includes a pre-filter cartridge 300 (the pre-filter cartridge 300 may be an activated carbon filter cartridge, a PP cotton filter cartridge, etc.), a water inlet of the pre-filter cartridge 300 is connected to municipal tap water, a water outlet of the pre-filter cartridge 300 is connected to the raw water inlet of the reverse osmosis filter cartridge 100, and the pre-filter cartridge 300 is located at an upstream side of the reverse osmosis filter cartridge 100. The concentrated water generated by the reverse osmosis cartridge 100 is discharged through the concentrated water outlet, and the formed pure water is discharged through the tap 400.

In addition, the water purifier may not be provided with the pre-cartridge 300, and in this case, municipal tap water may be connected to the raw water inlet of the reverse osmosis cartridge 100.

The water purifier increases the resistance of the anions and cations on the raw water side of the reverse osmosis membrane to permeate the reverse osmosis membrane, reduces the probability of the anions and cations to permeate the reverse osmosis membrane, reduces the TDS value on the pure water side, and further reduces the TDS value of the first cup of water.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The water purifier is characterized by comprising a reverse osmosis filter element and a direct current power supply, wherein the direct current power supply comprises a positive electrode and a negative electrode, and the positive electrode and the negative electrode are respectively connected with the reverse osmosis filter element;

When the direct current power supply is electrified, an electric field can be generated inside the reverse osmosis filter element.

2. The water purifier of claim 1, wherein the reverse osmosis cartridge comprises a reverse osmosis assembly comprising a membrane member and a central tube, the membrane member being disposed around an exterior of the central tube.

3. The water purifier of claim 2, wherein the reverse osmosis filter element further comprises a first end cap and a second end cap, the first end cap and the second end cap being secured to respective ends of the reverse osmosis assembly, one of the first end cap and the second end cap being connected to a positive electrode, the other of the first end cap and the second end cap being connected to a negative electrode.

4. The water purifier of claim 3, wherein the first end cap comprises a first end cap body and a first conductive member extending from an outer sidewall of the first end cap body to an exterior of the first end cap body, the first conductive member being connected to the positive electrode;

The second end cover comprises a second end cover body and a second conductive piece, the second conductive piece extends from the outer side wall of the second end cover body to the outer portion of the second end cover body, and the second conductive piece is connected with the negative electrode.

5. The water purifier of claim 4, wherein the central tube has a seating groove formed in a portion thereof located outside the membrane member, and the reverse osmosis cartridge further comprises a sealing ring disposed in the seating groove.

6. The water purifier of claim 2, wherein the reverse osmosis cartridge further comprises a housing, the reverse osmosis assembly is located inside the housing, one of the housing and the center tube is connected to the positive electrode, and the other of the housing and the center tube is connected to the negative electrode.

7. The water purifier of claim 6, wherein the positive electrode is connected to the center tube and the negative electrode is connected to the housing.

8. The water purifier of claim 2, wherein the reverse osmosis cartridge further comprises a housing and a cover, the cover being wrapped around an exterior of the membrane member, the reverse osmosis assembly and the cover each being located inside the housing, one of the cover and the housing being connected to the positive electrode, the other of the cover and the housing being connected.

9. The water purifier of claim 8, wherein the positive electrode is coupled to the cover and the negative electrode is coupled to the housing.

10. The water purifier of any one of claims 1-9, further comprising a pre-filter element coupled to the reverse osmosis filter element, the pre-filter element being located on an upstream side of the reverse osmosis filter element.