Hollow nanofiltration membrane filter element assembly

Abstract

The utility model relates to the technical field of water treatment, and discloses a hollow nanofiltration membrane filter element assembly. Comprising a hollow nanofiltration membrane core assembly, a main body mechanism is arranged on the surface of the hollow nanofiltration membrane core assembly, an upper cover mechanism is arranged on the surface of the hollow nanofiltration membrane core assembly, and the hollow nanofiltration membrane core assembly is located in the main body mechanism. Direct drinking water rich in mineral substances can be produced without electricity under normal water pressure of tap water, when the tap water is used in daily life, water flow in the assembly automatically flushes the filter element, the filter element is continuously kept clean, the service life of the filter element is prolonged, the water production flux of the filter element is kept, the filter element pollution blocking risk is reduced, and no waste water is generated; and the functional characteristics of no electricity consumption, no water waste, no core replacement, high flux, no noise, healthy direct drinking, energy conservation, environmental protection and the like which cannot be simultaneously realized by the existing ultrafiltration membrane, roll-type nanofiltration membrane and reverse osmosis membrane filter cores are realized.

Description

Technical Field

[0001] This component is mainly used in household hollow nanofiltration membrane water purifiers. It can directly produce water using tap water pressure (0.15-0.35MPa), eliminating the waiting time caused by water storage in pressure tanks, requiring no electricity, and not discharging wastewater. Background Art

[0002] This component uses a hollow nanofiltration membrane with a pore size of 1-10 nanometers as the membrane core, and is divided into three water paths: inlet water, flushing water, and purified water. When using purified water, water molecules in the tap water in the inlet water path and minerals and trace elements such as calcium, magnesium, iron, zinc, and strontium flow through the membrane pores to the purified water outlet, and various bacteria, viruses, impurities, suspended matter, drug residues, heavy metal hydrated ions, etc. are retained in the tube wall of the membrane and flow out with the tap water through the flushing water path to achieve automatic flushing and cleaning, which not only retains minerals, but also saves water and electricity, avoids the risk of secondary pollution caused by the accumulation of intercepted materials, can continuously maintain the cleanliness of the filter element, extend the service life of the filter element, and reduce the overall cost of use.

[0003] The three water channels of this component, namely, inlet water, flushing water and purified water, are distributed in the same direction. The space requirement for installation is relatively small, thus avoiding the possibility of disordered water pipe layout at the installation site. It matches the existing shells of existing rolled nanofiltration and rolled reverse osmosis filter elements, thereby reducing the manufacturer's product development cycle and cost. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the utility model provides a hollow nanofiltration membrane filter element assembly, including a hollow nanofiltration membrane core assembly, a main body mechanism is arranged on the surface of the hollow nanofiltration membrane core assembly, an upper cover mechanism is arranged on the surface of the hollow nanofiltration membrane core assembly, the hollow nanofiltration membrane core assembly is located inside the main body mechanism, the upper cover mechanism is located above the hollow nanofiltration membrane core assembly, the hollow nanofiltration membrane core assembly includes an assembly shell, a plurality of cavity purified water outlets are opened on the surface of the assembly shell, a bottom cover body is clamped at the bottom of the assembly shell, a bottom cover body is fixedly connected to the top of the bottom cover body with a bottom cover water channel, the interior of the assembly shell is fixedly connected with a shell chamber concentric structure, the shell chamber concentric structure is fixedly connected with a center tube on the side away from the assembly shell, and a plurality of purified water permeable holes are opened inside the assembly shell.

[0005] Through the above technical solution, the central tube is connected to the outer shell through the ribs, which ensures a high concentricity between the central tube and the shell during the production process.

[0006] As a further improvement of the above scheme, the several cavity purified water outlets are evenly distributed with the component shell as the center, the several hollow nanofiltration membrane filaments are evenly filled in each cavity with the component shell as the center, the central tube is located in the center of the component shell, and the ribs are connected to the shell to divide the shell cavity into several parts, and the hollow nanofiltration membrane core component adopts a forked water channel design.

[0007] Through the above technical solution, there is a central tube in the center of the shell, which is connected to the outer shell through ribs to ensure high concentricity between the central tube and the shell during the production process. At the same time, the interior of the shell is evenly divided into several cavities, each of which has a purified water permeable hole, which can reduce the water outlet back pressure problem to a certain extent. The hollow nanofiltration membrane core assembly adopts a bifurcated water channel design with a larger water channel cross-sectional area, successfully avoiding contact with the water outlet of the membrane wire end face, ensuring that the membrane wire is flushed without dead angles.

[0008] As a further improvement of the above scheme, the main body structure includes a shell, a waterway cover is installed on the upper part of the shell, a water inlet hole is opened on the top of the waterway cover, a flushing water outlet is opened on the top of the waterway cover, a purified water outlet is opened on the top of the waterway cover, and a decorative cover plate is installed on the top.

[0009] Through the above technical solution, the connection adopts a water channel joint structure, which can make the matching structural parts simpler and more compact.

[0010] As a further improvement of the above scheme, the component housing is located inside the shell, the flushing water outlet is located above the central tube, the water inlet and the purified water outlet are symmetrically distributed with the flushing water outlet as the center, and the three water channels of the water inlet, purified water outlet and flushing water outlet are on the same side of the shell end face.

[0011] Through the above technical solution, the water inlet and flushing water of the membrane core assembly are sealed and separated to prevent water cross-contamination.

[0012] As a further improvement of the above solution, the upper cover mechanism includes an upper cover body, the top of the upper cover body is fixedly connected with a double O-RING water channel joint, and the bottom of the upper cover body is fixedly connected with a bottom water channel joint.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model distributes three water channels, namely, water inlet, flushing water and purified water, in the same direction, and requires less space during installation, thus avoiding the possibility of disordered water channel piping at the installation site, reducing practical space and improving aesthetics. It is compatible with existing shells of existing rolled nanofiltration and rolled reverse osmosis filter elements, thereby reducing the manufacturer's product development cycle and cost.

[0015] The utility model is fixedly connected with a bottom water channel joint structure through the bottom of the upper cover body, thereby ensuring a higher concentricity of the membrane core assembly, reducing the risk of sealing leakage with matching structural parts, and making the matching structural parts simpler and more compact.

[0016] The utility model adopts a hollow nanofiltration membrane with a pore size of 1-10 nanometers as the membrane core, and is divided into three water paths: inlet water, flushing water, and purified water. When purifying water, water molecules, minerals and trace elements of tap water in the inlet water path flow to the purified water outlet through the membrane pores, and various bacteria, viruses, impurities, suspended matter, drug residues, heavy metal hydrated ions, etc. are retained in the tube wall of the membrane and flow out with the tap water through the flushing water path, thereby realizing automatic flushing and cleaning, which not only retains minerals, but also can continuously maintain the cleanliness of the inside of the filter element, extend the service life of the filter element, and reduce the overall cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a front view structural diagram of the hollow nanofiltration membrane core assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the hollow nanofiltration membrane core component of the utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the upper cover mechanism of the utility model;

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the main mechanism of the utility model.

[0022] In the figure: 1. Hollow nanofiltration membrane core assembly; 101. Assembly shell; 102. Cavity purified water outlet; 103. Bottom cover body; 104. Bottom cover water channel; 105. Shell chamber concentric structure; 106. Center tube; 107. Hollow nanofiltration membrane filament; 2. Main body; 201. Shell; 202. Water inlet; 203. Flushing water outlet; 204. Purified water outlet; 205. Water channel upper cover; 206. Decorative cover plate; 3. Upper cover mechanism; 301. Upper cover body; 302. Double O-RING water channel joint; 303. Bottom water channel joint. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0024] Example:

[0025] Please combine Figure 1-5A hollow nanofiltration membrane filter element assembly of the present embodiment includes a hollow nanofiltration membrane core assembly 1, a main body mechanism 2 is arranged on the surface of the hollow nanofiltration membrane core assembly 1, an upper cover mechanism 3 is arranged on the surface of the hollow nanofiltration membrane core assembly 1, the hollow nanofiltration membrane core assembly 1 is located inside the main body mechanism 2, and the upper cover mechanism 3 is located above the hollow nanofiltration membrane core assembly 1, the hollow nanofiltration membrane core assembly 1 includes an assembly housing 101, a plurality of cavity purified water outlets 102 are opened on the surface of the assembly housing 101, a bottom cover body 103 is clamped at the bottom of the assembly housing 101, a bottom cover waterway 104 is fixedly connected to the top of the bottom cover body 103, a shell chamber concentric structure 105 is fixedly connected to the inside of the assembly housing 101, a central tube 106 is fixedly connected to the side of the shell chamber concentric structure 105 away from the assembly housing 101, and a plurality of water purified hollow nanofiltration membrane filaments 107 are opened inside the assembly housing 101.

[0026] A number of cavity purified water outlets 102 are evenly distributed with the component housing 101 as the center, and a number of hollow nanofiltration membrane filaments 107 are evenly filled in each cavity with the component housing 101 as the center. The central tube 106 is located in the center of the component housing 101 and is connected to the housing through ribs, which not only ensures concentricity, but also successfully divides the housing cavity into several parts. Under normal water pressure of tap water, direct drinking water rich in minerals can be produced without electricity. The hollow nanofiltration membrane core component 1 adopts a bifurcated water channel design with a large water channel cross-sectional area, which successfully avoids contact with the membrane filament end face outlet, ensuring that the membrane filament is flushed without dead angles. The water flow in the component automatically flushes the filter element, continuously protects the filter element from being clean, extends the service life of the filter element, maintains the water flux of the filter element, reduces the risk of secondary pollution of the filter element, and does not generate wastewater, realizing the functional characteristics of "no electricity", "no water consumption", "no core replacement", "large flux", "no noise", "healthy direct drinking", "energy saving and environmental protection" and so on that cannot be achieved at the same time by existing ultrafiltration membranes, rolled nanofiltration membranes, and reverse osmosis membrane filters.

[0027] The main body 2 includes a shell 201, and a waterway cover 205 is installed on the upper part of the shell 201. A water inlet 202 is opened on the top of the waterway cover 205, a flushing water outlet 203 is opened on the top of the waterway cover 205, a purified water outlet 204 is opened on the top of the waterway cover 205, and a decorative cover plate 206 is installed on the top of 205.

[0028] The component housing 101 is located inside the shell 201, the flushing water outlet 203 is located above the central tube 106, the water inlet 202 and the purified water outlet 204 are symmetrically distributed around the flushing water outlet 203, and the three waterways of the water inlet 202, the purified water outlet 204 and the flushing water outlet 203 are on the same side of the shell end face.

[0029] The upper cover mechanism 3 comprises an upper cover body 301 , a double O-RING water channel joint 302 is fixedly connected to the top of the upper cover body 301 , and a bottom water channel joint 303 is fixedly connected to the bottom of the upper cover body 301 .

[0030] The implementation principle of a hollow nanofiltration membrane filter element assembly in the embodiment of the present application is as follows: after the device is assembled, the flushing water is connected to the household faucet, and the purified water is connected to the dedicated water purification faucet. When the water purification faucet is turned on, due to the effect of pressure, water is injected into the interior of the device through the water inlet 202. After entering the device, the water enters the various cavities inside the hollow nanofiltration membrane core assembly 1 below it through the double O-RING water channel joint 302 on the top of the upper cover body 301. After being filtered by the hollow nanofiltration membrane filaments inside the cavity, the purified water flows from the cavity purified water outlet 102 to between the assembly housing 101 and the shell 201, and finally flows into the water purification faucet through the purified water outlet 204 for discharge. When the household faucet is turned on, due to the effect of pressure, water flows through the hollow nanofiltration membrane filament 107 to the top of the bottom cover body 103, and is diverted to the inside of the central tube 106 at the bottom cover water channel 104, and then flows along the central tube 106 through the bottom water channel joint 303 of the upper cover, and enters the household faucet from the flushing water outlet 203 and is discharged.

[0031] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A hollow nanofiltration membrane filter element assembly, comprising a hollow nanofiltration membrane element assembly (1), characterized in that: The surface of the hollow nanofiltration membrane core assembly (1) is provided with a main body structure (2), the surface of the hollow nanofiltration membrane core assembly (1) is provided with an upper cover structure (3), the hollow nanofiltration membrane core assembly (1) is located inside the main body structure (2), the upper cover structure (3) is located above the hollow nanofiltration membrane core assembly (1), the hollow nanofiltration membrane core assembly (1) comprises an assembly housing (101), and the surface of the assembly housing (101) is provided with a plurality of cavity purified water outlets (102), The bottom of the component housing (101) is clamped with a bottom cover body (103), the top of the bottom cover body (103) is fixedly connected with a bottom cover waterway (104), the interior of the component housing (101) is fixedly connected with a shell cavity concentric structure (105), the shell cavity concentric structure (105) is fixedly connected to a side away from the component housing (101) with a center tube (106), and the internal cavity of the component housing (101) is filled with a plurality of hollow nanofiltration membrane filaments (107).

2. A hollow nanofiltration membrane filter element assembly according to claim 1, characterized in that: The plurality of cavity purified water outlets (102) are evenly distributed with the component housing (101) as the center; the plurality of hollow nanofiltration membrane filaments (107) are evenly filled in each cavity with the component housing (101) as the center; the central tube (106) is located at the center of the component housing (101); the ribs are connected to the housing to divide the housing cavity into several parts; and the hollow nanofiltration membrane core component (1) adopts a bifurcated waterway design.

3. The hollow nanofiltration membrane filter element assembly according to claim 1, characterized in that: The main body (2) comprises a shell (201), the upper part of which is provided with a waterway upper cover (205), the top of which is provided with a water inlet hole (202), the top of which is provided with a flushing water outlet (203), the top of which is provided with a purified water outlet (204), and the top of which is provided with a decorative cover plate (206).

4. A hollow nanofiltration membrane filter element assembly according to claim 3, characterized in that: The component housing (101) is located inside the shell (201), the flushing water outlet (203) is located above the central tube (106), the water inlet (202) and the purified water outlet (204) are symmetrically distributed with the flushing water outlet (203) as the center, and the three waterways of the water inlet (202), the purified water outlet (204) and the flushing water outlet (203) are on the same side of the shell end face.

5. The hollow nanofiltration membrane filter element assembly according to claim 1, characterized in that: The upper cover mechanism (3) comprises an upper cover body (301), the top of the upper cover body (301) is fixedly connected with a double O-RING water channel joint (302), and the bottom of the upper cover body (301) is fixedly connected with a bottom water channel joint (303).

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