Filter element assembly and water purification equipment

Abstract

The utility model relates to the technical field of water purification, in particular to a filter element assembly and water purification equipment. The filter element assembly comprises an outer pipe, an inner pipe, a water inlet, a wastewater outlet, a purified water outlet and a water pressure valve, the water pressure valve is opened when the water pressure in the outer pipe reaches the preset water pressure, the inner pipe is sleeved with the outer pipe, the water inlet and the wastewater outlet are matched with the outer pipe, the purified water outlet is matched with the inner pipe, and the water pressure valve is arranged on the outer wall of the inner pipe; a semi-permeable membrane is arranged between the inner pipe and the outer pipe, and the water pressure valve corresponds to the semi-permeable membrane; the water pressure valve is opened when the water pressure in the outer pipe reaches the preset water pressure, so that the water pressure valve is guaranteed to be closed in a standby state, pure water is isolated from raw water, the pure water is isolated from waste water, the water quality of a first cup of pure water is improved, and the effluent quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of water purification, and in particular to a filter element assembly and a water purification device. Background Art

[0002] Water purification equipment in the prior art usually relies on membrane filters to filter raw water; after the water purification equipment has been working for a period of time and then enters standby mode, raw water, wastewater and pure water will coexist in the membrane filter element, and the total dissolved solids (TDS) concentration of the raw water and wastewater is higher than that of pure water. In the long-term standby mode, ions in the raw water and wastewater diffuse into the pure water, resulting in a high TDS concentration in the first cup of pure water when the water purification equipment changes from standby mode to working mode, affecting the effluent water quality. Summary of the invention

[0003] In response to the above-mentioned problems in the prior art, the purpose of the present application is to set a water pressure valve that opens when the water pressure in the outer pipe reaches a preset water pressure, thereby ensuring the closure of the water pressure valve in the standby state, isolating pure water from raw water, pure water from waste water, and thereby improving the water quality of the first cup of pure water and the water quality of the outlet water.

[0004] In order to solve the above problems, the present application provides a filter element assembly, including an outer tube, an inner tube, a water inlet, a wastewater outlet, a clean water outlet, and a water pressure valve that opens when the water pressure in the outer tube reaches a preset water pressure.

[0005] The outer tube is sleeved outside the inner tube, the water inlet and the wastewater outlet match the outer tube, the clean water outlet matches the inner tube, and the water pressure valve is arranged on the outer wall of the inner tube;

[0006] A semipermeable membrane is arranged between the inner tube and the outer tube, and the water pressure valve is arranged corresponding to the semipermeable membrane.

[0007] In the embodiment of the present application, the water pressure valve comprises a flow pipe, a sealing member and an elastic member, and the sealing member and the elastic member are arranged in the flow pipe;

[0008] The two ends of the elastic member are fixedly connected to the flow pipe and the sealing member respectively;

[0009] The sealing member matches the aperture of the flow conduit.

[0010] In the embodiment of the present application, the sealing member and the elastic member are both arranged along the flow direction of the flow pipe.

[0011] In an embodiment of the present application, the flow conduit includes a first flow section close to the inner wall of the outer tube and a second flow section away from the inner wall of the outer tube, and the sealing member includes a sealing disc;

[0012] The diameter of the sealing disk is larger than the aperture of the first flow section and smaller than the aperture of the second flow section.

[0013] In the embodiment of the present application, the sealing member comprises a fixing rod, and the sealing disc is integrally formed with the fixing rod;

[0014] The elastic member is wound around the fixing rod, and the elastic member is fixedly connected to the sealing disc.

[0015] In the embodiment of the present application, a receiving groove is provided on the inner tube, and the water pressure valve is arranged in the receiving groove.

[0016] In the embodiment of the present application, the water pressure valve includes a sealing ring for sealing the gap between the water pressure valve and the containing groove.

[0017] In the embodiment of the present application, the inner tube and the outer tube are coaxially arranged.

[0018] In the embodiment of the present application, the diameter of the water inlet, the diameter of the wastewater outlet and the diameter of the clean water outlet are located on the same straight line;

[0019] The clean water outlet is arranged between the water inlet and the wastewater outlet.

[0020] On the other hand, the present application also provides a water purification device, which includes the filter element assembly in the embodiment of the present application.

[0021] Due to the above technical solution, a filter element assembly described in this application has the following beneficial effects:

[0022] By arranging the water pressure valve on the outer wall of the inner tube, and the water pressure valve can only be opened when the water pressure in the outer tube reaches the preset water pressure, the purified water is isolated from the raw water, as well as the purified water and the waste water, thereby improving the water quality of the first cup of purified water and the water quality of the effluent water; specifically, when the water purification equipment is not in a working state, the water pressure in the outer tube is less than the preset water pressure, the water pressure valve is closed, and the purified water is isolated from the raw water, as well as the purified water and the waste water; when the water purification equipment is in a working state, the water pressure in the outer tube gradually increases until it is greater than the preset water pressure, the water pressure valve is opened, and purified water is produced, thereby improving the water quality of the first cup of purified water and the water quality of the effluent water. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a structural schematic diagram of a filter element assembly provided in an embodiment of the present application;

[0025] Figure 2 It is a structural schematic diagram of a water pressure valve in a filter element assembly provided in an embodiment of the present application.

[0026] Among them, 1-outer tube, 2-inner tube, 21-holding tank, 3-water inlet, 4-wastewater outlet, 5-clean water outlet, 6-water pressure valve, 61-circulation pipeline, 611-first circulation section, 612-second circulation section, 62-sealing member, 621-sealing disc, 622-fixing rod, 63-elastic member, 64-sealing ring, 7-semipermeable membrane. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0028] The term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present application. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may include one or more of the features explicitly or implicitly. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here.

[0029] Combination Figure 1 , introduces a filter element assembly provided in an embodiment of the present application, which includes an outer tube 1, an inner tube 2, a water inlet 3, a wastewater outlet 4, a clean water outlet 5, and a water pressure valve 6 that opens when the water pressure in the outer tube 1 reaches a preset water pressure. The outer tube 1 is sleeved on the outside of the inner tube 2, the water inlet 3 and the wastewater outlet 4 match the outer tube 1, the clean water outlet 5 matches the inner tube 2, and the water pressure valve 6 is arranged on the outer wall of the inner tube 2; a semipermeable membrane 7 is provided between the inner tube 2 and the outer tube 1, and the water pressure valve 6 is arranged corresponding to the semipermeable membrane 7.

[0030] In a specific embodiment of the present application, when the water pressure in the outer tube 1 reaches a preset water pressure, the water pressure valve 6 opens; specifically, since the raw water needs to enter from the water inlet 3, the raw water entering the outer tube 1 needs to be driven by a driving structure, such as a water pump, so there will be water pressure in the input of the raw water, thereby increasing the water pressure in the outer tube 1, and then opening the water pressure valve 6.

[0031] In the embodiment of the present application, the water pressure valve 6 is arranged on the outer wall of the inner tube 2, and the water pressure valve 6 can only be opened when the water pressure in the outer tube 1 reaches the preset water pressure, thereby isolating the purified water from the raw water, as well as the purified water from the waste water, thereby improving the water quality of the first cup of purified water and the water quality of the outlet water; specifically, when the water purification equipment is not in a working state, the water pressure in the outer tube 1 is less than the preset water pressure, the water pressure valve 6 is closed, and the purified water is isolated from the raw water, as well as the purified water from the waste water; when the water purification equipment is in a working state, the water pressure in the outer tube 1 gradually increases until it is greater than the preset water pressure, the water pressure valve 6 is opened, and purified water is produced, thereby improving the water quality of the first cup of purified water and the water quality of the outlet water.

[0032] In the specific embodiment of the present application, a plurality of water pressure valves 6 are provided on the outer wall of the inner tube 2 .

[0033] In a specific embodiment of the present application, the semipermeable membrane 7 can wrap multiple water pressure valves 6, thereby improving the water purification efficiency.

[0034] In another specific embodiment of the present application, the semipermeable membrane 7 may be disposed on the inner wall of the inner tube 2 , and the plurality of hydraulic valves 6 correspond to the positions of the semipermeable membrane.

[0035] In the embodiment of the present application, the water pressure valve 6 includes a circulation pipe 61, a seal 62 and an elastic member 63, the seal 62 and the elastic member 63 are arranged in the circulation pipe 61; the two ends of the elastic member 63 are fixedly connected to the circulation pipe 61 and the seal 62 respectively; the seal 62 matches the aperture of the circulation pipe 61.

[0036] In the embodiment of the present application, the opening and closing of the water pressure valve 6 is achieved by providing a sealing member 62 and an elastic member 63, thereby reducing the manufacturing cost of the water pressure valve 6 and further reducing the manufacturing cost of the filter element assembly.

[0037] In the specific embodiment of the present application, the elastic member 63 can be a spring or elastic rubber, which is not limited herein.

[0038] In the embodiment of the present application, the sealing member 62 and the elastic member 63 are both arranged along the flow direction of the flow pipe 61 .

[0039] In the embodiment of the present application, the sealing member 62 and the elastic member 63 are both arranged along the flow direction of the flow pipe 61, so as to improve the water flow path during the water filtering process, thereby improving the water filtering efficiency of the filter element assembly.

[0040] In the embodiment of the present application, the circulation conduit 61 includes a first circulation section 611 close to the inner wall of the outer tube 1 and a second circulation section 612 away from the inner wall of the outer tube 1, and the seal 62 includes a sealing disc 621; the diameter of the sealing disc 621 is larger than the aperture of the first circulation section 611 and smaller than the aperture of the second circulation section 612.

[0041] In the embodiment of the present application, the flow pipe 61 is arranged into a first flow section 611 and a second flow section 612, so that the seal 62 can better seal the inner tube 2, thereby improving the sealing of the water pressure valve 6, and further improving the water quality of the first cup of purified water and the water quality of the outlet water.

[0042] In the embodiment of the present application, the sealing member 62 includes a fixing rod 622 , and the sealing disc 621 and the fixing rod 622 are integrally formed; the elastic member 63 is wound around the fixing rod 622 , and the elastic member 63 is fixedly connected to the sealing disc 621 .

[0043] In the embodiment of the present application, the sealing member 62 is fixed to the sealing disc 621, thereby improving the stability of the sealing disc 621 and further improving the service life of the filter element assembly.

[0044] In the embodiment of the present application, a receiving groove 21 is provided on the inner tube 2 , and the water pressure valve 6 is arranged in the receiving groove 21 .

[0045] In the embodiment of the present application, a receiving groove 21 is provided on the inner tube 2, and the water pressure valve 6 is arranged in the receiving groove 21, so as to prevent the water pressure valve 6 from protruding from the inner tube 2, thereby ensuring the regularity of the structure and improving the structural aesthetics of the filter element assembly.

[0046] In the embodiment of the present application, the water pressure valve 6 includes a sealing ring 64 for sealing the gap between the water pressure valve 6 and the receiving groove 21 .

[0047] In the embodiment of the present application, a sealing ring 64 is provided in the gap between the water pressure valve 6 and the containing groove 21, thereby improving the sealing performance of the water pressure valve 6, thereby improving the water quality of the first cup of purified water and the water quality of the outlet water.

[0048] In the embodiment of the present application, the inner tube 2 and the outer tube 1 are coaxially arranged.

[0049] In the embodiment of the present application, the inner tube 2 and the outer tube 1 are coaxially arranged to ensure the regularity of the structure and improve the structural aesthetics of the filter element assembly.

[0050] In the embodiment of the present application, the water inlet 3 , the wastewater outlet 4 and the clean water outlet 5 are all arranged on a surface parallel to the cross section of the inner tube 2 and / or the outer tube 1 .

[0051] In the embodiment of the present application, the diameter of the water inlet 3 , the diameter of the wastewater outlet 4 , and the diameter of the clean water outlet 5 are located on the same straight line; the clean water outlet 5 is arranged between the water inlet 3 and the wastewater outlet 4 .

[0052] In the embodiment of the present application, by locating the diameter of the water inlet 3, the diameter of the wastewater outlet 4 and the diameter of the clean water output outlet 5 on the same straight line, the regularity of the structure is ensured and the structural aesthetics of the filter element assembly is improved; by arranging the clean water output outlet 5 between the water inlet 3 and the wastewater outlet 4 so that it matches the position of the inner tube 2 and the position of the outer tube 1, the regularity of the structure is ensured and the structural aesthetics of the filter element assembly is improved.

[0053] The working principle of the filter element assembly in the embodiment of the present application is described below:

[0054] Since the raw water needs to enter from the water inlet 3, the raw water entering the outer tube 1 needs to be driven by a driving structure, such as a water pump. Therefore, there will be water pressure when the raw water is input, thereby increasing the water pressure in the outer tube 1, and then opening the water pressure valve 6; when the water pressure valve 6 is opened, part of the liquid of the raw water passes through the semipermeable membrane 7 from the outer tube 1 into the inner tube 2, and finally is produced as clean water from the clean water output port 5 corresponding to the inner tube 2; another part of the liquid of the raw water is discharged from the wastewater outlet 4 under the drive of the water pump to form wastewater.

[0055] The filter element assembly in the embodiment of the present application has the following beneficial effects:

[0056] By arranging the water pressure valve 6 on the outer wall of the inner tube 2, and the water pressure valve 6 can only be opened when the water pressure in the outer tube 1 reaches the preset water pressure, the purified water is isolated from the raw water, as well as the purified water and the waste water, thereby improving the water quality of the first cup of purified water and the water quality of the outlet water; specifically, when the water purification equipment is not in a working state, the water pressure in the outer tube 1 is less than the preset water pressure, the water pressure valve 6 is closed, and the purified water is isolated from the raw water, as well as the purified water and the waste water; when the water purification equipment is in a working state, the water pressure in the outer tube 1 gradually increases until it is greater than the preset water pressure, the water pressure valve 6 is opened, and purified water is produced, thereby improving the water quality of the first cup of purified water and the water quality of the outlet water.

[0057] A water purification device is also provided in an embodiment of the present application, and the water purification device includes the filter element assembly in the embodiment of the present application. The beneficial effects of the water purification device are consistent with the effects of the filter element assembly, and will not be elaborated herein.

[0058] The above description has fully disclosed the specific implementation methods of the present application. It should be pointed out that any changes made by technicians familiar with the field to the specific implementation methods of the present application do not deviate from the scope of the claims of the present application. Accordingly, the scope of the claims of the present application is not limited to the above specific implementation methods.

Claims

1. A filter element assembly, characterized in that: It comprises an outer tube (1), an inner tube (2), a water inlet (3), a wastewater outlet (4), a clean water outlet (5), and a water pressure valve (6) which opens when the water pressure in the outer tube (1) reaches a preset water pressure. The outer tube (1) is sleeved outside the inner tube (2), the water inlet (3) and the wastewater outlet (4) match the outer tube (1), the clean water outlet (5) matches the inner tube (2), and the water pressure valve (6) is arranged on the outer wall of the inner tube (2); A semipermeable membrane (7) is provided between the inner tube (2) and the outer tube (1), and the water pressure valve (6) is provided corresponding to the semipermeable membrane (7).

2. A filter element assembly according to claim 1, characterized in that: The water pressure valve (6) comprises a circulation pipeline (61), a sealing member (62) and an elastic member (63), wherein the sealing member (62) and the elastic member (63) are arranged in the circulation pipeline (61); Two ends of the elastic member (63) are fixedly connected to the flow pipe (61) and the sealing member (62) respectively; The sealing member (62) matches the aperture of the flow channel (61).

3. A filter element assembly according to claim 2, characterized in that: The sealing member (62) and the elastic member (63) are both arranged along the flow direction of the flow pipe (61).

4. A filter element assembly according to claim 3, characterized in that: The circulation conduit (61) comprises a first circulation section (611) close to the inner wall of the outer tube (1) and a second circulation section (612) away from the inner wall of the outer tube (1); the sealing element (62) comprises a sealing disc (621); The diameter of the sealing disc (621) is larger than the aperture of the first flow section (611) and smaller than the aperture of the second flow section (612).

5. A filter element assembly according to claim 4, characterized in that: The sealing member (62) comprises a fixing rod (622), and the sealing disc (621) and the fixing rod (622) are integrally formed; The elastic member (63) is wound around the fixing rod (622), and the elastic member (63) is fixedly connected to the sealing disc (621).

6. A filter element assembly according to claim 1, characterized in that: The inner tube (2) is provided with a receiving groove (21), and the water pressure valve (6) is arranged in the receiving groove (21).

7. A filter element assembly according to claim 6, characterized in that: The water pressure valve (6) comprises a sealing ring (64) for sealing the gap between the water pressure valve (6) and the containing groove (21).

8. A filter element assembly according to claim 1, characterized in that: The inner tube (2) and the outer tube (1) are coaxially arranged.

9. A filter element assembly according to claim 1, characterized in that: The diameter of the water inlet (3), the diameter of the wastewater outlet (4) and the diameter of the clean water outlet (5) are located on the same straight line; The clean water output outlet (5) is arranged between the water inlet (3) and the wastewater outlet (4).

10. A water purification device, characterized in that: Comprising a filter element assembly as described in any one of claims 1-9.

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