WO2022033204A1 - 净水器滤芯及净水器 - Google Patents

净水器滤芯及净水器 Download PDF

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Publication number
WO2022033204A1
WO2022033204A1 PCT/CN2021/102768 CN2021102768W WO2022033204A1 WO 2022033204 A1 WO2022033204 A1 WO 2022033204A1 CN 2021102768 W CN2021102768 W CN 2021102768W WO 2022033204 A1 WO2022033204 A1 WO 2022033204A1
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WIPO (PCT)
Prior art keywords
exchange membrane
electrode
filter element
water purifier
water flow
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PCT/CN2021/102768
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English (en)
French (fr)
Inventor
陈小平
吕苏
晏博
董红晨
肖杰
郝楠
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云米互联科技(广东)有限公司
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Publication of WO2022033204A1 publication Critical patent/WO2022033204A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds

Definitions

  • the utility model relates to the technical field of water purification, in particular to a water purifier filter element and a water purifier.
  • Water is the source of life. With the improvement of people's living standards, more and more attention is paid to the issue of healthy drinking water.
  • the water purifier/filter is an important water purification equipment that has been widely used in recent years.
  • the filter element structure of the existing water purifier is mostly a flat-type single-effect filter element membrane superimposed or a flat-type multi-function filter element film superimposed.
  • the flat-type filter element structure is not only large in size, especially for large-area filtration, and the process is more complicated. .
  • the utility model provides a water purifier filter element and a water purifier.
  • the filter element structure is changed from a flat type to a roll type filter element, which can not only increase the area of the exchange membrane per unit volume, but also simplify the production process of the filter element structure.
  • the present utility model provides a water purifier filter element, comprising:
  • a casing provided with a first water flow interface and a second water flow interface
  • a filter body is accommodated in the casing, the filter body includes an exchange membrane and a central pipe, the exchange membrane is installed on the outside of the central pipe in a winding manner, and the inner wall of the casing is connected to a part of the central pipe.
  • the exchange membrane forms a first chamber, the second water flow interface is connected with the first chamber, and the first water flow interface is connected with the second chamber formed by the central pipe;
  • the filter body further includes a physical interception layer, and the physical interception layer is arranged on the inner side or the outer side of the exchange membrane, and is used for filtering impurities in the water flow.
  • the physical interception layer includes a first physical interception layer, and the first physical interception layer is disposed in the first chamber; or the physical interception layer includes a first physical interception layer. Two physical interception layers, the second physical interception layer is disposed in the second chamber.
  • the physical interception layer includes one of pp cotton, microfiltration membrane, ultrafiltration membrane, carbon rod, carbon fiber or carbon cloth.
  • the water purifier filter element of the embodiment of the present invention is provided with a first electrode and a second electrode electrically connected to the positive and negative poles of the DC power supply, and the first electrode is arranged on the second electrode.
  • the second electrode is disposed in the first chamber.
  • the exchange membrane includes a cation exchange membrane and an anion exchange membrane, the inner side of the cation exchange membrane is attached to the inner side of the anion exchange membrane, and the cation exchange membrane The outer side is opposite to the outer side of the anion exchange membrane and forms a water flow channel.
  • the first electrode is electrically connected to the positive electrode of the DC power supply and is arranged on the inner side of the cation exchange membrane
  • the second electrode is electrically connected to the negative electrode of the DC power supply and arranged at the inner side of the cation exchange membrane. the outside of the anion exchange membrane; or
  • the first electrode is electrically connected to the negative electrode of the DC power supply and is arranged on the inner side of the cation exchange membrane
  • the second electrode is electrically connected to the negative electrode of the DC power supply and arranged on the outer side of the anion exchange membrane
  • the first electrode is electrically connected to the positive electrode of the DC power supply and is arranged on the inner side of the anion exchange membrane, and the second electrode is electrically connected to the negative electrode of the DC power supply and arranged on the outer side of the cation exchange membrane;
  • the first electrode is electrically connected to the negative electrode of the DC power supply and is arranged on the inner side of the anion exchange membrane
  • the second electrode is electrically connected to the positive electrode of the DC power supply and arranged on the outer side of the cation exchange membrane.
  • the first electrode is wound on the outside of the central pipe, and the second electrode is wound on the outside of the exchange membrane.
  • the gap of the water flow channel is 10 to 500 microns.
  • the outer side of the cation exchange membrane or the anion exchange membrane is provided with protrusions, so that when the exchange membrane is wound on the outer side of the central pipe, the cation exchange membrane can interact with the the anion exchange membrane forms the water flow channel;
  • the filter body further includes a guide cloth, and the guide cloth is arranged in the water flow channel formed by the cation exchange membrane and the anion exchange membrane.
  • the filter body further includes a waterproof glue layer, and the waterproof glue layer is arranged on both ends of the filter body, so that the water flow can enter the water through the physical interception layer from the outside.
  • the exchange membrane is discharged from the central pipe; or the water flow enters the physical interception layer from the central pipe and passes through the exchange membrane and is discharged.
  • the present utility model further provides a water purifier, comprising a body and the above-mentioned water purifier filter element, and the water purifier filter element is accommodated inside the body.
  • the technical solutions provided by the embodiments of the present application may include the following beneficial effects: the present application designs a water purifier filter element and a water purifier, since the exchange membrane is installed on the outside of the central pipe in a winding manner, this not only can improve the unit volume
  • the area of the inner exchange membrane can also be simplified and the production process of the filter element structure can be simplified.
  • a physical interception layer is arranged in the second chamber, which can realize the physical interception of small particles and the adsorption and removal of small molecular organic substances, and the structure is simple but practical.
  • FIG. 1 is a schematic structural diagram of a water purifier provided by an embodiment of the present application.
  • Fig. 2 is the exploded schematic diagram of the water purifier in Fig. 1;
  • Fig. 3 is the sectional schematic diagram of the water purifier in Fig. 1;
  • Fig. 4 is the exploded schematic diagram of the water purifier filter element in Fig. 1;
  • Fig. 5 is the structural representation of the filter body in Fig. 1;
  • Fig. 6 is another kind of structural representation of the filter body in Fig. 1;
  • Fig. 7 is another kind of structural representation of the filter body in Fig. 1;
  • Fig. 8 is another kind of structural representation of the filter body in Fig. 1;
  • FIG. 9 is another schematic structural diagram of the filter body in FIG. 1 .
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as “first”, “second” may expressly or implicitly include one or more of said features. In the description of the present application, “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the filter element structure of the existing water purifier is mostly a flat-type single-effect filter element membrane superimposed or a flat-type multi-function filter element film superimposed.
  • the flat-type filter element structure is not only large in size, especially for large-area filtration, and the process is more complicated. .
  • the water purifier filter element is mainly used in the water purifier, which can filter water alone or in conjunction with other components of the water purifier, so as to purify the water quality and make the filtered water meet predetermined requirements, such as drinking water standards.
  • the present application provides a water purifier filter element 100 , which includes a housing 10 and a filter body 20 , and the housing 10 is provided with a first water flow interface 11 and a filter body 20 .
  • the second water flow port 12 and the filter body 20 are accommodated in the casing 10 .
  • the filter body 20 includes an exchange membrane 21 and a central tube, and the exchange membrane 21 is installed on the outside of the central tube in a winding manner, so that the inner wall of the housing 10 and part of the exchange membrane 21 can form the first chamber 101 , after the exchange membrane 21 is wound, the center or the central tube itself can form the second chamber 102 , the second water flow interface 12 is connected with the first chamber 101 , and the first water flow interface 11 is connected with the second chamber 102 .
  • the central pipe may be a physical element, or the central pipe may not be a physical element, but is only a virtual concept of the winding center of the exchange membrane 21 .
  • a physical interception layer is provided in the first chamber 101 and/or the second chamber 102, so that the pure water obtained by desalting through the exchange membrane 21 can enter the first water flow interface after passing through the physical interception layer 11 and discharged from the first water flow interface 11 , or pure water obtained by desalination of the exchange membrane 21 can enter the second water flow interface 12 after passing through the physical interception layer and be discharged from the second water flow interface 12 .
  • the physical interception layer includes a first physical interception layer 24 , and the first physical interception layer 24 is disposed outside the exchange membrane 21 and located in the first chamber 101 .
  • the water flow enters the housing 10 from the second water flow interface 12 and is discharged from the first water flow interface 11, the water flow first passes through the second physical interception layer 25 to physically intercept small particles and adsorb and remove small molecules of organic matter, and then the water flow again It flows into the inside of the exchange membrane 21 from the outside of the exchange membrane 21 .
  • the water flow enters the housing 10 from the first water flow interface 11 and is discharged from the second water flow interface 12, the water flow first flows into the exchange membrane 21 from the outside of the exchange membrane 21, and then flows from the first physical chamber in the first chamber 101.
  • the interception layer 24 flows into the second water flow interface 12 , so that the first physical interception layer 24 can physically intercept small particles in the first chamber 101 and adsorb and remove small molecules of organic matter.
  • the physical interception layer includes a second physical interception layer 25 , and the second physical interception layer 25 is disposed in the second chamber 102 .
  • the first water flow port 11 flows into the exchange membrane 21 from the outside of the exchange membrane 21 , and then flows out of the second chamber 102
  • the second physical interception layer 25 flows into the first water flow interface 11 , so that the second physical interception layer 25 can physically intercept small particles in the second chamber 102 and adsorb and remove small molecules of organic matter.
  • the water flow enters the housing 10 from the first water flow interface 11 and is discharged from the second water flow interface 12.
  • the water flow first passes through the second physical interception layer 25 to physically intercept small particles and adsorb and remove the organic matter of small molecules, and then passes through the exchange.
  • the membrane 21 is discharged from the second water flow port 12 .
  • the physical interception layer comprises one of pp cotton, microfiltration membrane, ultrafiltration membrane, carbon rod, carbon fiber or carbon cloth.
  • the first physical interception layer 24 and the second physical interception layer 25 are configured as one of pp cotton, microfiltration membrane, ultrafiltration membrane, carbon rod, carbon fiber or carbon cloth to ensure the water purification effect.
  • the water purifier filter element is provided with a first electrode 22 and a second electrode 23 that are electrically connected to the positive and negative poles of the DC power supply, wherein the first electrode 22 and the second electrode 23 are respectively arranged on the inner and outer sides of the exchange membrane 21, so that the water flowing from the first chamber 101 to the second chamber 102 can be desalinated under the action of the electric field, or flow from the second chamber 102 to the second chamber 102.
  • the water in a chamber 101 can be desalinated under the action of an electric field.
  • the water purifier filter element further includes a central tube
  • the exchange membrane 21 is wound on the outer side of the central tube
  • the first electrode 22 can be arranged on the outer side of the central tube, or the first electrode 22 and the central tube are integrally formed
  • the second electrode 23 is arranged outside the exchange membrane 21, wherein the second electrode 23, the first electrode 22 and the wound exchange membrane 21 are arranged concentrically, so as to ensure the uniformity of the electric field after the exchange membrane 21 is wound.
  • the first electrode 22 is a first electrode made of titanium alloy material; and/or the second electrode 22 is a second electrode made of titanium alloy material.
  • the first electrode 22 and/or the second electrode 23 are coated with a catalytic coating.
  • the catalytic coating consists of a noble metal oxide and a non-noble metal oxide; or the catalytic coating comprises a platinum coating, a platinum coating, or a platinum-containing tin oxide layer.
  • the noble metal oxide is iridium oxide or a mixture of iridium oxide and ruthenium oxide, so as to ensure the practical life of the first electrode 22 and/or the second electrode 23 .
  • the outer diameter of the first electrode 22 and/or the second electrode 23 is 0.1 cm-10 cm.
  • the wall thickness of the first electrode 22 and/or the second electrode 23 is 0.01 cm-1 cm.
  • the inside of the first electrode 22 is filled with a plastic part, so as to realize the sealing performance inside the first electrode 22 .
  • the first electrode 22 is provided with an inner cavity, so that the raw water can be discharged from the second chamber 102 into the first chamber 101 through the inner cavity.
  • the exchange membrane 21 is a bipolar membrane, and the bipolar membrane is composed of polymer films with opposite polar fixed charges, including an anion exchange membrane, a cation exchange membrane and an intermediate layer, and the intermediate layer is arranged on the two sides. Between the layers, under the action of the electric field, water molecules dissociate into hydrogen ions and hydroxide ions in the middle layer of the bipolar membrane. Migrate towards or away from the cation exchange membrane.
  • the cation exchange membrane of the bipolar membrane faces the second chamber 102
  • the anion exchange membrane of the bipolar membrane faces the first chamber 101
  • the first electrode 22 is located in the second chamber 102 and electrically connected to the positive electrode of the DC power supply
  • the second electrode 23 is located in the first chamber 101 and electrically connected to the negative electrode of the DC power supply, so that water flows in the channel formed between the cation exchange membrane and the anion exchange membrane for desalination.
  • the anions in the water flow move toward the direction of the first electrode 22 to replace the hydroxide ions in the anion exchange membrane, and the hydroxide ions enter the flow channel; at the same time, the cations in the raw water move toward the second electrode 23 It moves in the direction of the cation exchange membrane to replace the hydrogen ions in the cation exchange membrane, and the hydrogen ions enter the flow channel, where the hydrogen ions and hydroxide ions undergo a neutralization reaction in the flow channel to generate water, so as to realize the removal of salt in the water flow to generate pure water. Water, pure water is discharged from the second chamber 102 .
  • the first electrode 22 and the second electrode 23 need to be reversely regenerated after desalination using the bipolar membrane, so as to release the hydrogen ions and hydroxide ions adsorbed on the bipolar membrane.
  • the first electrode 22 is electrically connected to the negative electrode of the DC power supply
  • the second electrode 23 is electrically connected to the positive electrode of the DC power supply.
  • the cations inside the membrane are replaced by hydrogen ions and move in the direction of the first electrode 22, the anions in the anion membrane of the bipolar membrane are replaced by hydroxide ions and move in the direction of the second electrode 23, the cations and anions enter the flow channel, thereby A regeneration process is achieved, wherein the cation can be Na+ and the anion can be Cl-, but not limited thereto.
  • the exchange membrane 21 includes a cation exchange membrane 212 and an anion exchange membrane 211, wherein the inner side of the cation exchange membrane 212 is in contact with the inner side of the anion exchange membrane 211, and the outer side of the cation exchange membrane 212 is in contact with the anion exchange membrane 211.
  • the outside of the membrane 211 is opposite and forms a water flow channel, so that hydrogen ions and hydroxide ions undergo neutralization reaction in the water flow channel to generate water, or cations and anions enter the flow channel to realize the regeneration process.
  • the exchange membrane 21 is formed by stacking n layers of cation exchange membranes 212 and n layers of anion exchange membranes 211 in sequence, wherein 18 ⁇ n ⁇ 2, which not only avoids the need for the exchange membrane 21 to work The voltage is too large, and it also ensures the overall volume of the exchange membrane 21 after winding.
  • each layer of cation exchange membrane 212 is disposed opposite to the adjacent anion exchange membrane 211 and forms a water flow channel to ensure that water flow can flow through each layer of cation exchange membrane 212 and anion exchange membrane 211 to form The water flow channel ensures the speed of water purification.
  • the first electrode 22 is arranged outside the cation exchange membrane 212
  • the second electrode 23 is arranged outside the anion exchange membrane 211 .
  • first electrode 22 can also be disposed outside the anion exchange membrane 211, and the second electrode 23 can also be disposed outside the cation exchange membrane 212, which is not limited in the present application.
  • the first electrode 22 is wound on the outside of the central tube, and the second electrode 23 is wound on the outside of the exchange membrane 21, which is simple in structure but practical.
  • the gap of the water flow channel is 10 to 500 microns, which can not only ensure that the water flow can pass through the water flow channel, but also ensure the volume of the exchange membrane 21 after the winding is completed, and the exchange membrane 21 effect to the greatest extent.
  • protrusions are provided on the outside of the cation exchange membrane 212 or the anion exchange membrane 211, so that when the exchange membrane 21 is wound around the outside of the central tube, the cation exchange membrane 212 and the anion exchange membrane 211 can form a water flow channel through which water flows.
  • the filter body further includes a guide cloth, wherein the guide cloth is arranged in the water flow channel formed by the cation exchange membrane 212 and the anion exchange membrane 211 to ensure that the water flow can be guided by the guide cloth. down through the water channel.
  • the filter body further includes a waterproof glue layer, and the waterproof glue layer is arranged on both ends of the exchange membrane 21 wound around the central tube, so as to avoid the short circuit of the exchange membrane 21 .
  • the waterproof glue layer is arranged on both ends of the entire filter body, so that the whole of the filter body forms a seal to ensure that the water flow can enter the exchange membrane from the outside after passing through the physical interception layer and be discharged from the central pipe; or the water flow enters from the central pipe.
  • the physical interception layer then passes through the exchange membrane and is discharged.
  • the present application further provides a water purifier including a body 200 and the above-mentioned water purifier filter element 100 , wherein the water purifier filter element 100 is accommodated inside the body 200 .
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection connected, or integrally connected. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two elements or the interaction relationship between the two elements.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection connected, or integrally connected. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two elements or the interaction relationship between the two elements.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply denoting that the first feature is level above the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

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Abstract

本实用新型公开了一种净水器滤芯，包括壳体和过滤体，所述壳体上设置有第一水流接口和第二水流接口；所述过滤体容置在所述壳体内，所述过滤体包括交换膜和中心管，所述交换膜以卷绕的方式安装在所述中心管的外侧，所述壳体的内壁与部分所述交换膜形成第一腔室，所述第二水流接口与所述第一腔室相连，所述第一水流接口与所述中心管构成的第二腔室相连；其中，所述过滤体还包括物理拦截层，所述物理拦截层设置在所述交换膜的内侧或外侧，用于过滤水流中的杂质。

Description

净水器滤芯及净水器 技术领域
本实用新型涉及净水技术领域，尤其涉及一种净水器滤芯及净水器。
背景技术
水是生命之源，随着人们生活水平的提高，越来越重视健康饮水问题。而净水器/滤水器是近些年来发展起来的被广泛应用的一种重要的净水设备。
现有净水器的滤芯结构多为平板式单功效滤芯膜叠加或者平板式多功效滤芯膜叠加，但是，平板式的滤芯结构不仅尺寸较大，尤其是实现大面积的过滤，而且工艺较为复杂。
实用新型内容
本实用新型提供了一种净水器滤芯及净水器，将滤芯结构从平板式变成卷式滤芯，不仅可以提高单位体积内交换膜的面积，而且也能滤芯结构的简化生产工艺。
根据本实用新型的第一方面，本实用新型提供了一种净水器滤芯，包括：
壳体，设置有第一水流接口和第二水流接口；
过滤体，容置在所述壳体内，所述过滤体包括交换膜和中心管，所述交换膜以卷绕的方式安装在所述中心管的外侧，所述壳体的内壁与部分所述交换膜形成第一腔室，所述第二水流接口与所述第一腔室相连，所述第一水流接口与所述中心管构成的第二腔室相连；
其中，所述过滤体还包括物理拦截层，所述物理拦截层设置在所述交换膜的内侧或外侧，用于过滤水流中的杂质。
在本实用新型实施方式的净水器滤芯中，所述物理拦截层包括第一物理拦截层，所述第一物理拦截层设置在所述第一腔室中；或所述物理拦截层包括第二物理拦截层，所述第二物理拦截层设置在所述第二腔室中。
在本实用新型实施方式的净水器滤芯中，所述物理拦截层包括pp棉、微滤膜、超滤膜、碳棒、碳纤维或碳布中的其中一种。
在本实用新型实施方式的净水器滤芯中，所述净水器滤芯上设有与直流电源正负两极电相连的第一电极和第二电极，所述第一电极设置在所述第二腔室中，所述第二电极设置在所述第一腔室中。
在本实用新型实施方式的净水器滤芯中，所述交换膜包括阳离子交换膜和阴离子交换膜，所述阳离子交换膜的内侧与所述阴离子交换膜的内侧相贴，所述阳离子交换膜的外侧与所述阴离子交换膜的外侧相对并形成水流通道。
在本实用新型实施方式的净水器滤芯中，所述第一电极与直流电源正极电连接并设置在所述阳离子交换膜的内侧，所述第二电极与直流电源负极电连接并设置在所述阴离子交换膜的外侧；或者
所述第一电极与直流电源负极电连接并设置在所述阳离子交换膜的内侧，所述第二电极与直流电源负极电连接并设置在所述阴离子交换膜的外侧；或者
所述第一电极与直流电源正极电连接并设置在所述阴离子交换膜的内侧，所述第二电极与直流电源负极电连接并设置在所述阳离子交换膜的外侧；或者
所述第一电极与直流电源负极电连接并设置在所述阴离子交换膜的内侧，所述第二电极与直流电源正极电连接并设置在所述阳离子交换膜的外侧。
在本实用新型实施方式的净水器滤芯中，所述第一电极缠绕在所述中心管的外侧，所述第二电极缠绕在所述交换膜的外侧。
在本实用新型实施方式的净水器滤芯中，所述水流通道的间隙为10至500微米。
在本实用新型实施方式的净水器滤芯中，所述阳离子交换膜或阴离子交换膜的外侧设有凸起，使得所述交换膜卷绕在中心管的外侧时，所述阳离子交换膜能够与所述阴离子交换膜形成所述水流通道；
或所述过滤体还包括导流布，所述导流布设置在所述阳离子交换膜与所述阴离子交换膜形成所述水流通道中。
在本实用新型实施方式的净水器滤芯中，所述过滤体还包括防水胶层，所述防水胶层设置在所述过滤体的两端，使得水流能够从外侧经过物理拦截层后进入所述交换膜并从所述中心管排出；或者水流从所述中心管进入所述物理拦截层后经过交换膜并排出。根据本实用新型的第二方面，本实用新型还提供了一种净水器，包括本体和上述的净水器滤芯，所述净水器滤芯收容在所述本体的内侧。
本申请实施例提供的技术方案可以包括以下有益效果：本申请设计了一种净水器滤芯及净水器，由于交换膜以卷绕的方式安装在中心管的外侧，这样不仅可以提高单位体积内交换膜的面积，而且也能滤芯结构的简化生产工艺。此外，第二腔室内设置有物理拦截层，可以实现对小颗粒的物理拦截以及对小分子有机物的吸附去除，结构简单却实用。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本申请。
附图说明
为了更清楚地说明本实用新型实施例技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请一实施例提供的一种净水器的结构示意图；
图2是图1中的净水器的分解示意图；
图3是图1中的净水器的剖面示意图；
图4是图1中的净水器滤芯的分解示意图；
图5是图1中的过滤体的结构示意图；
图6是图1中的过滤体的另一种结构示意图；
图7是图1中的过滤体的另一种结构示意图；
图8是图1中的过滤体的另一种结构示意图；
图9是图1中的过滤体的另一种结构示意图。
附图标记说明：
100、净水器滤芯；101、第一腔室；102、第二腔室；200、本体；
10、壳体；11、第一水流接口；12、第二水流接口；
20、过滤体；21、交换膜；211、阴离子交换膜；212、阳离子交换膜；22、第一电极；23、第二电极；24、第一物理拦截层；25、第二物理拦截层。
具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方 案进行清楚、完整地描述，显然，所描述的实施例是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
下面结合附图，对本申请的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
现有净水器的滤芯结构多为平板式单功效滤芯膜叠加或者平板式多功效滤芯膜叠加，但是，平板式的滤芯结构不仅尺寸较大，尤其是实现大面积的过滤，而且工艺较为复杂。
其中，净水器滤芯主要用于净水器中，可以独自或配合净水器的其它部件过滤水，从而起到净化水质，使得经过过滤的水达到预定的要求，比如达到饮用水标准。
如图1至图9所示，根据本申请的第一方面，本申请提供了一种净水器滤芯100，包括壳体10和过滤体20，壳体10上设置有第一水流接口11和第二水流接口12，过滤体20容置在壳体10内。在本实施方式中，过滤体20包括交换膜21和中心管，交换膜21以卷绕的方式安装在中心管的外侧，使得壳体10的内壁与部分交换膜21能够形成第一腔室101，交换膜21缠绕后其中心或中心管本身能够形成第二腔室102，第二水流接口12与第一腔室101相连，第一水流接口11与第二腔室102相连。
采用以上技术方案后，由于交换膜以卷绕的方式安装在中心管的外侧，这 样不仅可以提高单位体积内交换膜的面积，而且也能简化滤芯结构的生产工艺。
需要说明的是，中心管可以为实体存在的元件，中心管也可以不是实体存在的元件，仅是交换膜21缠绕中心的虚拟概念。
在一个可选的实施方式中，第一腔室101和/或第二腔室102内设置有物理拦截层，使得通过交换膜21脱盐得到的纯水能够经过物理拦截层后进入第一水流接口11中并从第一水流接口11排出，或者交换膜21脱盐得到的纯水能够经过物理拦截层后进入第二水流接口12中并从第二水流接口12排出。
示例性的，如图3和图5所示，物理拦截层包括第一物理拦截层24，第一物理拦截层24设置在交换膜21的外侧并位于第一腔室101中。在水流从第二水流接口12进入壳体10内并从第一水流接口11排出时，水流先通过第二物理拦截层25进行小颗粒的物理拦截及对小分子的有机物吸附去除，而后水流再从交换膜21的外侧流入交换膜21的内。或者水流从第一水流接口11进入壳体10内并从第二水流接口12排出，水流先从交换膜21的外侧流入交换膜21的内，而后再从第一腔室101内的第一物理拦截层24流入第二水流接口12，使得第一物理拦截层24能够对第一腔室101内的小颗粒进行物理拦截及对小分子的有机物吸附去除。
示例性的，如图3和图6所示，物理拦截层包括第二物理拦截层25，第二物理拦截层25设置在第二腔室102中。在水流从第二水流接口12进入壳体10内并从第一水流接口11排出时，第一水流接口11从交换膜21的外侧流入交换膜21的内，而后再从第二腔室102内的第二物理拦截层25流入第一水流接口11，使得第二物理拦截层25能够对第二腔室102内的小颗粒进行物理拦截及对小分子的有机物吸附去除。或者水流从第一水流接口11进入壳体10内并从第二水流接口12排出，水流先通过第二物理拦截层25进行小颗粒的物理拦截及对小分子的有机物吸附去除，而后再经过交换膜21从第二水流接口12排出。
在一个可选的实施方式中，物理拦截层包括pp棉、微滤膜、超滤膜、碳棒、碳纤维或碳布中的其中一种。
具体的，第一物理拦截层24和第二物理拦截层25配置为pp棉、微滤膜、超滤膜、碳棒、碳纤维或碳布中的其中一种，以保证净水效果。
在一个可选的实施方式中，如图3至图9所示，净水器滤芯上设有与直流电源正负两极电相连的第一电极22和第二电极23，其中，第一电极22和第二 电极23分别设置在交换膜21的内外侧，使得从第一腔室101内流向第二腔室102的水能够在电场的作用下进行脱盐，或者从第二腔室102内流向第一腔室101的水能够在电场的作用下进行脱盐。
在一个可选的实施方式中，净水器滤芯还包括中心管，交换膜21缠绕在中心管的外侧，第一电极22可以设置在中心管的外侧，或者第一电极22与中心管一体成型，第二电极23设置在交换膜21的外侧，其中，第二电极23、第一电极22和缠绕后的交换膜21同心设置，从而可以确保交换膜21卷绕后电场的均匀性。
在一个可选的实施方式中，第一电极22为采用钛合金材料制成的第一电极；和/或第二电极22为采用钛合金材料制成的第二电极。
在一个可选的实施方式中，第一电极22和/或第二电极23上涂覆有催化涂层。
在一个可选的实施方式中，催化涂层由贵金属氧化物和非贵金属氧化物组成；或催化涂层包括铂镀层、铂涂层或含铂氧化锡层。
在一个可选的实施方式中，贵金属氧化物为氧化铱或者氧化铱与氧化钌的混合物，以确保第一电极22和/或第二电极23的实用寿命。
在一个可选的实施方式中，第一电极22和/或第二电极23的外径为0.1cm-10cm。
在一个可选的实施方式中，第一电极22和/或第二电极23的壁厚为0.01cm-1cm。
在一个可选的实施方式中，第一电极22通过塑料件填充在其内部，以实现第一电极22内部的密封性。
在一个可选的实施方式中，第一电极22上设有内腔，使得原水能够通过内腔从第二腔室102进入第一腔室101后排出。
在一个可选的实施方式中，交换膜21为双极膜，双极膜由具有相反极性固定电荷的聚合物薄膜组成，包括阴离子交换膜、阳离子交换膜和中间层，中间层设置在两层膜之间，在电场作用下，水分子在双极膜的中间层解离成氢离子和氢氧根离子，其中，氢离子朝向或远离阴离子交换膜的方向做迁移运动，氢氧根离子朝向或远离阳离子交换膜的方向做迁移运动。
在净水器滤芯通过双极膜进行脱盐时，双极膜的阳离子交换膜朝向第二腔 室102，双极膜的阴离子交换膜朝向第一腔室101，第一电极22位于第二腔室102内并与直流电源正极电连接，第二电极23位于第一腔室101内并与直流电源负极电连接，使得水流在阳离子交换膜与阴离子交换膜之间形成的流道中进行脱盐。
例如，水流中的阴离子朝着第一电极22的方向移动，以置换阴离子交换膜中的氢氧根离子，氢氧根离子进入流道中；与此同时，原水中的阳离子朝着第二电极23的方向移动，以置换阳离子交换膜中的氢离子，氢离子进入流道中，其中，氢离子和氢氧根离子在流道中发生中和反应生成水，从而实现对水流中盐分的去除以生成纯水，纯水从第二腔室102排出。
其中，利用双极膜进行脱盐后需要对第一电极22和第二电极23进行倒极再生，以释放出吸附在双极膜上的氢离子和氢氧根离子。
例如，第一电极22与直流电源负极电连接，第二电极23与直流电源正极电连接，双极膜的阳离子膜和阴离子膜在电场下产生氢离子和氢氧根离子，双极膜的阳离子膜内部的阳离子被氢离子置换并向第一电极22的方向移动，双极膜的阴离子膜中的阴离子被氢氧根离子置换朝第二电极23的方向移动，阳离子和阴离子进入流道中，从而实现了再生过程，其中，阳离子可以为Na+，阴离子可以为C l-，但是不局限于此。
在一个可选的实施方式中，交换膜21包括阳离子交换膜212和阴离子交换膜211，其中，阳离子交换膜212的内侧与阴离子交换膜211的内侧相贴，阳离子交换膜212的外侧与阴离子交换膜211的外侧相对并形成水流通道，使得氢离子和氢氧根离子在水流通道中发生中和反应生成水，或者阳离子和阴离子进入流道中实现了再生过程。
在一个可选的实施方式中，交换膜21由n层阳离子交换膜212和n层阴离子交换膜211依次堆叠而成，其中，18≥n≥2，这样不仅可以避免交换膜21工作时所需的电压过大，而且也确保了交换膜21缠绕后的整体体积。
在一个可选的实施方式中，每一层阳离子交换膜212与相邻的阴离子交换膜211相对设置并形成水流通道，以确保水流能够流经每一层阳离子交换膜212与阴离子交换膜211形成的水流通道，确保净水的速度。
在一个可选的实施方式中，第一电极22设置在阳离子交换膜212的外侧，第二电极23设置在阴离子交换膜211的外侧。
需要说明的是，第一电极22也可以设置在阴离子交换膜211的外侧，第二电极23同样可以设置在阳离子交换膜212的外侧，本申请不加以限制。
在一个可选的实施方式中，第一电极22缠绕在中心管的外侧，第二电极23缠绕在交换膜21的外侧，结构简单却实用。
在一个可选的实施方式中，水流通道的间隙为10至500微米，这样不仅可以确保水流能够从水流通道通过，同时也确保了交换膜21卷绕完成后的体积大小，能够将交换膜21的作用最大的发挥出来。
在一个可选的实施方式中，阳离子交换膜212或阴离子交换膜211的外侧设有凸起，使得交换膜21卷绕在中心管的外侧时，阳离子交换膜212能够与阴离子交换膜211形成水流通道，以供水流通过。
在一个可选的实施方式中，过滤体还包括导流布，其中，导流布设置在阳离子交换膜212与阴离子交换膜211形成水流通道中，以确保水流能够在导流布的导流作用下在水流通道中经过。
在一个可选的实施方式中，过滤体还包括防水胶层，防水胶层设置在缠绕在中心管的交换膜21的两端，避免交换膜21出现短路情况。
示例性的，防水胶层设置在整个过滤体的两端，以使得过滤体的整体形成密封，确保水流能够从外侧经过物理拦截层后进入交换膜并从中心管排出；或者水流从中心管进入物理拦截层后经过交换膜并排出。
根据本申请的第二方面，本申请还提供了一种净水器，包括本体200和上述的净水器滤芯100，其中，净水器滤芯100收容在本体200的内侧。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接。可以是机械连接，也可以是电连接。可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或 仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
上文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，上文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施方式，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (11)

  1. 一种净水器滤芯，其特征在于，包括：
    壳体，设置有第一水流接口和第二水流接口；
    过滤体，容置在所述壳体内，所述过滤体包括交换膜和中心管，所述交换膜以卷绕的方式安装在所述中心管的外侧，所述壳体的内壁与部分所述交换膜形成第一腔室，所述第二水流接口与所述第一腔室相连，所述第一水流接口与所述中心管构成的第二腔室相连；
    其中，所述过滤体还包括物理拦截层，所述物理拦截层设置在所述交换膜的内侧或外侧，用于过滤水流中的杂质。
  2. 根据权利要求1所述的净水器滤芯，其特征在于，所述物理拦截层包括第一物理拦截层，所述第一物理拦截层设置在所述第一腔室中；或所述物理拦截层包括第二物理拦截层，所述第二物理拦截层设置在所述第二腔室中。
  3. 根据权利要求2所述的净水器滤芯，其特征在于，所述物理拦截层包括pp棉、微滤膜、超滤膜、碳棒、碳纤维或碳布中的其中一种。
  4. 根据权利要求1所述的净水器滤芯，其特征在于，所述净水器滤芯上设有与直流电源正负两极电相连的第一电极和第二电极，所述第一电极设置在所述第二腔室中，所述第二电极设置在所述第一腔室中。
  5. 根据权利要求4所述的净水器滤芯，其特征在于，所述交换膜包括阳离子交换膜和阴离子交换膜，所述阳离子交换膜的内侧与所述阴离子交换膜的内侧相贴，所述阳离子交换膜的外侧与所述阴离子交换膜的外侧相对并形成水流通道。
  6. 根据权利要求5所述的净水器滤芯，其特征在于，所述第一电极与直流电源正极电连接并设置在所述阳离子交换膜的内侧，所述第二电极与直流电源负极电连接并设置在所述阴离子交换膜的外侧；或者
    所述第一电极与直流电源负极电连接并设置在所述阳离子交换膜的内侧，所述第二电极与直流电源负极电连接并设置在所述阴离子交换膜的外侧；或者
    所述第一电极与直流电源正极电连接并设置在所述阴离子交换膜的内侧，所述第二电极与直流电源负极电连接并设置在所述阳离子交换膜的外侧；或者
    所述第一电极与直流电源负极电连接并设置在所述阴离子交换膜的内侧， 所述第二电极与直流电源正极电连接并设置在所述阳离子交换膜的外侧。
  7. 根据权利要求4所述的净水器滤芯，其特征在于，所述第一电极缠绕在所述中心管的外侧，所述第二电极缠绕在所述交换膜的外侧。
  8. 根据权利要求5所述的净水器滤芯，其特征在于，所述水流通道的间隙为10至500微米。
  9. 根据权利要求8所述的净水器滤芯，其特征在于，所述阳离子交换膜或阴离子交换膜的外侧设有凸起，使得所述交换膜卷绕在中心管的外侧时，所述阳离子交换膜能够与所述阴离子交换膜形成所述水流通道；
    或所述过滤体还包括导流布，所述导流布设置在所述阳离子交换膜与所述阴离子交换膜形成所述水流通道中。
  10. 根据权利要求1所述的净水器滤芯，其特征在于，所述过滤体还包括防水胶层，所述防水胶层设置在所述过滤体的两端，使得水流能够从外侧经过物理拦截层后进入所述交换膜并从所述中心管排出；或者水流从所述中心管进入所述物理拦截层后经过交换膜并排出。
  11. 一种净水器，其特征在于，包括本体和如权利要求1至10中任一项所述的净水器滤芯，所述净水器滤芯收容在所述本体的内侧。
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