阅读说明：本技术 基于纳滤膜元件的自动冲洗双出水净水龙头 (Automatic-flushing double-water-outlet water purification faucet based on nanofiltration membrane element ) 是由 陈亦力 王鑫 魏乾乾 王丽 于 2021-07-13 设计创作，主要内容包括：本发明提供了一种基于纳滤膜元件的自动冲洗双出水净水龙头,包括：二级滤芯、单向阀、联动式按压阀、三通阀、按压阀、饮用纳滤水出水口和生活用水出水口；二级滤芯分别为顺序管路连接的第一级前置预处理复合滤芯和第二级纳滤滤芯；二级滤芯的产水口经管路依次与单向阀、联动式按压阀和饮用纳滤水出水口管路连接；二级滤芯的废水口管路与三通阀管路连接,三通阀的一路出水与废水阀、联动式按压阀依次管路连接,另一路出水与按压阀和生活用水出水口顺序管路连接。该净水龙头可以在保证净水功效的前提下,在使用生活用水的同时就能实现膜元件的自动冲洗。(The invention provides an automatic-flushing double-outlet water purification faucet based on a nanofiltration membrane element, which comprises: the device comprises a secondary filter element, a one-way valve, a linkage type pressing valve, a three-way valve, a pressing valve, a drinking nanofiltration water outlet and a domestic water outlet; the secondary filter element is a primary pre-pretreatment composite filter element and a secondary nanofiltration filter element which are connected by a pipeline in sequence; a water production port of the secondary filter element is sequentially connected with the one-way valve, the linkage type pressing valve and a drinking nanofiltration water outlet pipeline through pipelines; the waste water inlet pipeline of the secondary filter element is connected with a three-way valve pipeline, one path of outlet water of the three-way valve is sequentially connected with a waste water valve and a linkage type pressing valve through pipelines, and the other path of outlet water is sequentially connected with the pressing valve and a domestic water outlet through pipelines. The water purification faucet can realize automatic flushing of the membrane element while using domestic water on the premise of ensuring the water purification effect.)

1. An automatic-flushing double-outlet water purification faucet based on a nanofiltration membrane element is characterized by comprising: the device comprises a secondary filter element, a one-way valve, a linkage type pressing valve, a three-way valve, a pressing valve, a drinking nanofiltration water outlet and a domestic water outlet;

the secondary filter element is a primary pre-pretreatment composite filter element and a secondary nanofiltration filter element which are connected by a pipeline in sequence;

a water production port of the secondary filter element is sequentially connected with the one-way valve, the linkage type pressing valve and a drinking nanofiltration water outlet pipeline through pipelines; the waste water port of the secondary filter element is connected with a three-way valve through a pipeline, one path of water outlet of the three-way valve is sequentially connected with a waste water valve and a linkage type pressing valve through pipelines, and the other path of water outlet is sequentially connected with the pressing valve and a domestic water outlet through pipelines.

2. The automatic-flushing double-outlet purified water faucet of claim 1, wherein the first pre-treatment composite filter element comprises a first filter element inlet and a first filter element outlet, the second nanofiltration filter element comprises a second filter element inlet, a second filter element outlet and a second filter element waste water outlet, and the first filter element outlet is in pipe connection with the second filter element inlet.

3. The automatic-flushing double-effluent water purification faucet of claim 1, wherein the first-stage pre-treatment composite filter element is a pre-carbon and calcium sulfite composite pre-treatment filter element, and the second-stage nanofiltration filter element is a PENF nanofiltration filter element.

4. The automatic-flushing double-outlet purified water faucet of claim 1, wherein the drinking nanofiltration water outlet and the domestic water outlet are of a single-faucet double-outlet structure.

5. The automatic-flushing double-outlet water purification faucet of claim 1, wherein the linkage type pressing valve adopts the same pressing valve switch to control the on-off of the wastewater waterway and the purified water waterway, so as to carry out linkage, and the two controlled waterways are parallel to each other and do not interfere with each other.

Technical Field

The invention relates to the field of water treatment and the technical field of water purification faucets, in particular to an automatic-flushing double-outlet water purification faucet based on a nanofiltration membrane element.

Background

With the development of membrane elements, more and more membrane elements can normally discharge water without pumps, so that all current water purifying faucet products adopt a mechanical structure design with a small filter element as a main body. However, the design has the problem of poor filtering function of the faucet filter element. The reason is that the membrane element that uses is mostly little components such as ultrafiltration or microfiltration, it is unsatisfactory to get rid of the effect, and use rated water purification tap of nanofiltration membrane then because the higher pressure condition that the nanofiltration membrane needs to compare in running water pressure, so this kind of water purification tap has water purification tap's the less problem of flow, and membrane element can be with calcium magnesium ion interception on the membrane surface in the use, if do not wash the membrane, phenomenon such as scale deposit takes place easily for a long time down, thereby reduce the life of membrane, lead to water purification tap head cup water TDS higher, and then influence water purification efficiency.

Therefore, a water purifying faucet which can automatically flush membrane elements on the premise of ensuring the water purifying effect is needed.

Disclosure of Invention

The invention provides an automatic-flushing double-outlet water purification faucet based on a nanofiltration membrane element, which aims to overcome the defects in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme.

An automatic-flushing double-outlet water purification faucet based on a nanofiltration membrane element, comprising: the device comprises a secondary filter element, a one-way valve, a linkage type pressing valve, a three-way valve, a pressing valve, a drinking nanofiltration water outlet and a domestic water outlet;

the secondary filter element is a primary pre-pretreatment composite filter element and a secondary nanofiltration filter element which are connected by a pipeline in sequence;

a water production port of the secondary filter element is sequentially connected with the one-way valve, the linkage type pressing valve and a drinking nanofiltration water outlet pipeline through pipelines; the waste water port of the secondary filter element is connected with a three-way valve through a pipeline, one path of water outlet of the three-way valve is sequentially connected with a waste water valve and a linkage type pressing valve through pipelines, and the other path of water outlet is sequentially connected with the pressing valve and a domestic water outlet through pipelines.

Preferably, the first-stage pre-pretreatment composite filter element comprises a first-stage filter element water inlet and a first-stage filter element water outlet, the second-stage nanofiltration filter element comprises a second-stage filter element water inlet, a second-stage filter element water outlet and a second-stage filter element wastewater outlet, and the first-stage filter element water outlet is connected with the second-stage filter element water inlet through a pipeline.

Preferably, the first-stage pre-treatment composite filter element is a pre-carbon and calcium sulfite composite pre-treatment filter element, and the second-stage nanofiltration filter element is a PENF nanofiltration filter element.

Preferably, the drinking nanofiltration water outlet and the domestic water outlet are of a single-tap double-water-outlet structure.

Preferably, the linkage type pressing valve adopts the same pressing valve switch to control the on-off of the wastewater waterway and the purified water waterway so as to carry out linkage, and the two controlled waterways are parallel to each other and do not interfere with each other.

According to the technical scheme provided by the automatic-flushing double-outlet water purification faucet based on the nanofiltration membrane element, the automatic-flushing double-outlet water purification faucet has the following advantages:

(1) the function of automatically washing the membrane element is realized, and the trouble that the water purifying faucet is easy to scale and is easy to drink water is eliminated on the premise of ensuring the water purifying effect.

(2) The high-flux PENF nanofiltration filter element solves the problems of low flow and poor filtration effect of the water purification faucet, and improves the use experience of consumers.

(3) The water outlet design is that two water outlets of domestic water and drinking water exist on one water purifying faucet, so that the space required by the faucet is saved, the water use efficiency is improved, and the proportion of waste water is reduced.

(4) The linkage type press valve device is adopted, so that the same press valve switch is used for controlling the on-off of the two water paths of the waste water path and the water purification path to be linked, but the two water paths are parallel to each other and do not interfere with each other, and the water leakage caused by the waste water valve when the tap domestic water outlet is opened is avoided.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a waterway structure of an automatic-flushing double-outlet water purification faucet based on a PENF nanofiltration membrane element of an embodiment;

FIG. 2 is a schematic view of the water flow of the purified water faucet when the domestic water is turned on;

FIG. 3 is a schematic view of the water flow of the purified water faucet when drinking water is turned on;

description of reference numerals:

1, pre-carbon and calcium sulfite composite pretreatment filter element; 2 a PENF nanofiltration filter element; 3 a tap water pipeline three-way valve; 4 linkage type pressing valve; 5, a one-way valve; 6, a three-way valve; 7, the ratio of waste water to waste water; 8 pressing a valve; 9 a domestic water outlet; 10, a drinking nanofiltration water outlet; 11 a first stage filter element water inlet; 12, a first stage filter element water outlet; 13 a second stage filter element water inlet; 14, a second-stage filter element water producing port; 15 second stage cartridge waste.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

For the convenience of understanding of the embodiments of the present invention, the following description will be further explained by taking specific embodiments as examples with reference to the drawings, and the embodiments of the present invention are not limited thereto.

Examples

Fig. 1 is a schematic view of a waterway structure of an automatic-flushing dual-outlet water purification faucet based on a PENF nanofiltration membrane element in this embodiment, and with reference to fig. 1, the automatic-flushing dual-outlet water purification faucet includes: the device comprises a secondary filter element, a one-way valve 5, a linkage type pressing valve 4, a three-way valve 6, a pressing valve 8, a drinking nanofiltration water outlet 10 and a domestic water outlet 9;

the secondary filter element is a primary pre-pretreatment composite filter element and a secondary nanofiltration filter element which are connected by a pipeline in sequence; the first-stage pre-pretreatment composite filter element comprises a first-stage filter element water inlet 11 and a first-stage filter element water outlet 12, the second-stage nanofiltration filter element comprises a second-stage filter element water inlet 13, a second-stage filter element water outlet 14 and a second-stage filter element wastewater outlet 15, and the first-stage filter element water outlet 12 is connected with the second-stage filter element water inlet 13 through a pipeline.

The first-stage pre-treatment composite filter element is a pre-carbon and calcium sulfite composite pre-treatment filter element 1, and the second-stage nanofiltration filter element is a PENF nanofiltration filter element 2.

The PENF nanofiltration filter element 2 is a PENF nanofiltration membrane element, the membrane element is formed by rolling a high-flux membrane made of PE, the flux of the membrane element can reach 2L/min under the conditions of 25 ℃ and 0.2Mpa of water inlet pressure, the desalination rate can reach 50-70%, and the hardness removal can reach more than 90%, so that the requirements of a water purification faucet on the flux and removal can be met.

A water production port of the secondary filter element is sequentially connected with the one-way valve, the linkage type pressing valve and a drinking nanofiltration water outlet pipeline through pipelines; the waste water outlet pipeline of the secondary filter element is connected with a three-way valve pipeline, one path of water outlet of the three-way valve is sequentially connected with a waste water valve and a linkage type pressing valve through pipelines, and the other path of water outlet is sequentially connected with the pressing valve and a domestic water outlet through pipelines.

The drinking nanofiltration water outlet 10 and the domestic water outlet 11 are of a single-tap double-outlet structure, that is, one tap comprises two outlets, namely a domestic water outlet and a drinking nanofiltration water outlet.

Linkage formula press the valve 4 and adopt the break-make in same press the valve switch control waste water route and water purification water route to link, and two water routes of control are parallel to each other, mutually noninterfere.

Fig. 2 is a water flow diagram when the purified water faucet opens the domestic water, as shown in fig. 2: when the domestic water outlet 9 of the water purification faucet is opened, tap water flowing in a pipeline flows into the preposed carbon and calcium sulfite composite pretreatment filter element 1 through the tap water pipeline three-way valve 3 and the first-stage filter element water inlet 11, enters the PENF nanofiltration filter element 2 from the first-stage filter element water outlet 12 along the second-stage filter element water inlet 13, and flows into the domestic water outlet 9 of the water purification faucet from the second-stage filter element waste water outlet 15 through the three-way valve 6 and the pressing valve 20. When the tap produces domestic water, tap water flows through the flow direction to complete the flushing of the second-stage filter element 2.

Fig. 3 is a water flow diagram of the purified water tap when the drinking water is opened, as shown in fig. 3, when the drinking water outlet 10 of the purified water tap is opened, the water flow direction is that the pipeline tap water passes through the three-way valve 3, the first-stage filter element water inlet 11 enters the pre-carbon and calcium sulfite composite pretreatment filter element 1, the water enters the PENF nanofiltration filter element 2 from the first-stage filter element water outlet 12 along the second-stage filter element water inlet 13, the membrane element produced water sequentially flows to the membrane element linkage type press valve 8 and the drinking water outlet 9 of the purified water tap from the second-stage filter element water outlet 14 through the one-way valve 5, and the concentrated water flows to the waste water valve 7 from the second-stage filter element water outlet 15 through the three-way valve 6 and the linkage type press valve 8 and is finally discharged through the waste water pipeline.

When the domestic water outlet 10 and the drinking water outlet 9 of the water purification faucet are closed, the wastewater waterway is also closed along with the linkage type pressing valve 8, so that the whole waterway is closed, the water purification faucet is effectively closed, and the water leakage phenomenon cannot occur.

It will be appreciated by those skilled in the art that the number of various components shown in FIG. 1 for simplicity only may be less than that in an actual device, but such omissions are clearly not to be considered as a requirement for a clear and complete disclosure of embodiments of the invention.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.