Water purification equipment
By introducing a return pipeline and a water storage composite filter element into the water purification equipment, the problem of excessively high TDS in the first stage of pure water after the water purification equipment has been solved, resulting in better water intake.
Patent Information
- Application Number
- CN202423322818.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-31
AI Technical Summary
When existing water purification equipment stops producing water and is left to stand for a period of time before water is taken out, the TDS of the first stage of pure water is too high, which affects the user's water intake experience.
Design a water purification device comprising a purified water pipeline, a pure water pipeline, a return pipeline, and a water storage composite filter element. The pure water prepared by the membrane filter element is returned to the inlet water for further filtration through the return pipeline. The water storage composite filter element continues to produce water after water intake and stores pure water to reduce TDS.
It effectively reduces the TDS of the first batch of pure water when the water is left to stand for a period of time, thus improving the user's water intake experience.
Smart Images
Figure CN223722822U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to water purification technical field especially relates to a water purification equipment. BACKGROUND
[0002] With the improvement of people's living standards, people pay more and more attention to water quality and health, and it has become a trend for families to equip water purification equipment. Most of the existing water purification equipment uses membrane filter element to prepare purified water, but the ion concentration of water on the concentrated water side of the membrane filter element is much higher than that on the pure water side after the water purification equipment stops producing water. Due to the influence of natural penetration (positive osmosis), the ions on the concentrated water side will penetrate into the pure water side, resulting in the first section of pure water having too high TDS (too high ion content in pure water) when the user takes water after the water purification equipment stops producing water and stands for a period of time, which affects the user's water taking experience. SUMMARY
[0003] The utility model aims at providing a water purification equipment to solve the technical problem of too high TDS of the first section of pure water when the user takes water after the water purification equipment stops producing water and stands for a period of time in the prior art.
[0004] The utility model provides a water purification equipment, including water purification pipeline, pure water pipeline, backflow pipeline, membrane filter element and water storage composite filter element, the water storage composite filter element includes filter element shell and water storage bag, be equipped with first water inlet, second water inlet, first water outlet and second water outlet on the filter element shell, the water storage bag is connected with the filter element shell to divide the inner chamber of the filter element shell into raw water cavity and pure water cavity, the first water inlet, the raw water cavity and the first water outlet are communicated and form pre-filter channel, the second water inlet, the pure water cavity and the second water outlet are communicated and form post-filter channel, the membrane filter element includes third water inlet and third water outlet, one end of the water purification pipeline is communicated with the first water outlet, the other end is communicated with the third water inlet, one end of the pure water pipeline is communicated with the third water outlet, the other end is communicated with the second water inlet, one end of the backflow pipeline is communicated with the third water outlet, the other end is communicated with the third water inlet, the first water inlet is used for connecting raw water pipeline, the second water outlet is used for connecting drinking water pipeline.
[0005] The water purification equipment as described above, the water purification pipeline includes water purification pipeline, first electromagnetic valve and booster pump, the first electromagnetic valve and the booster pump are sequentially arranged on the water purification pipeline, one end of the water purification pipeline is connected with the first water outlet, the other end is connected with the third water inlet.
[0006] The water purification equipment as described above, the pure water pipeline includes pure water pipeline and second electromagnetic valve arranged on the pure water pipeline, one end of the pure water pipeline is connected with the third water outlet, the other end is connected with the second water inlet.
[0007] In the water purification equipment described above, the second solenoid valve is a concentrated water solenoid valve.
[0008] As described above, the water purification equipment has a first branch port on the pure water pipeline, which is located before the second solenoid valve. The water purification pipeline also has a second branch port, which is located between the first solenoid valve and the booster pump. One end of the return pipeline is connected to the first branch port, and the other end is connected to the second branch port.
[0009] As described above, the water purification equipment includes a return pipeline and a check valve. The check valve is installed on the return pipeline. One end of the return pipeline is connected to the first branch port, and the other end is connected to the second branch port.
[0010] As described above, the water purification equipment further includes a third solenoid valve in the return pipeline, which is located on the return pipeline and downstream of the check valve.
[0011] As described above, the water purification device further includes a pre-filter material and a post-filter material. The pre-filter material is disposed in the raw water chamber, and the post-filter material is disposed in the pure water chamber.
[0012] In the water purification device described above, both the water storage bag and the post-filter material are located inside the pre-filter material.
[0013] In the water purification device described above, both the water storage bag and the post-filter material are located above the pre-filter material.
[0014] Implementing the embodiments of this utility model will have the following beneficial effects:
[0015] The utility model discloses a water purification equipment, including water purification pipeline, pure water pipeline, backflow pipeline, membrane filter core and water storage composite filter core, water storage composite filter core includes filter core shell and water storage bag, is equipped with first water inlet, second water inlet, first water outlet and second water outlet on the filter core shell, and the water storage bag is connected with the filter core shell to divide the inner chamber of filter core shell into raw water cavity and pure water cavity, and first water inlet, raw water cavity and first water outlet are connected and form the prefiltering channel, and second water inlet, pure water cavity and second water outlet are connected and form the postfiltering channel, and membrane filter core includes third water inlet and third water outlet, and one end of water purification pipeline is connected with first water outlet, and the other end is connected with third water inlet, and one end of pure water pipeline is connected with third water outlet, and the other end is connected with second water inlet, and one end of backflow pipeline is connected with third water outlet, and the other end is connected with third water inlet, and first water inlet is used for connecting raw water pipeline, and second water outlet is used for connecting drinking water pipeline. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, below will be used to the drawing needed to be briefly introduced in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.
[0017] Figure 1 It is the structural schematic diagram of water purification equipment according to an exemplary embodiment;
[0018] Figure 2 It is the structural schematic diagram of water purification equipment according to an exemplary embodiment;
[0019] Figure 3 It is the structural schematic diagram of water purification equipment according to an exemplary embodiment;
[0020] Figure 4 It is the structural schematic diagram of water purification equipment according to an exemplary embodiment;
[0021] Figure 5It is a structural schematic view of a water purification device according to an exemplary embodiment.
[0022] Wherein: 1, water storage composite filter element; 11, filter element shell; 111, first water inlet; 112, first water outlet; 113, second water inlet; 114, second water outlet; 12, pre-filter material; 13, post-filter material; 14, water storage bag; 15, flow guide shell; 2, raw water pipeline; 3, purified water pipeline; 31, purified water pipeline; 311, second branch port; 32, first electromagnetic valve; 33, booster pump; 4, pure water pipeline; 41, pure water pipeline; 411, first branch port; 42, second electromagnetic valve; 5, drinking water pipeline; 6, waste water pipeline; 7, backflow pipeline; 71, backflow pipeline; 72, check valve; 73, third electromagnetic valve; 8, membrane filter element; 81, third water inlet; 82, third water outlet; 83, waste water outlet. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0024] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0025] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0026] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can through intermediate medium indirectly connect, can be two element internal communication or two element's interaction relationship.For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
[0028] Referring to Figures 1-2 The utility model provides a kind of water purification equipment, including raw water pipeline 2, water purification pipeline 3, pure water pipeline 4, drinking water pipeline 5, waste water pipeline 6, backflow pipeline 7, membrane filter core 8 and water storage composite filter core 1, first water inlet 111, second water inlet 113, first water outlet 112 and second water outlet 114 are equipped on the water storage composite filter core 1, the first water inlet 111 and the first water outlet 112 are communicated and form pre-filter channel, the second water inlet 113 and the second water outlet 114 are communicated and form post-filter channel, the membrane filter core 8 includes third water inlet 81, third water outlet 82 and waste water outlet 83, the raw water pipeline 2 is connected with the first water inlet 111, one end of the water purification pipeline 3 is communicated with the first water outlet 112, the other end is communicated with the third water inlet 81, one end of the pure water pipeline 4 is communicated with the third water outlet 82, the other end is communicated with the second water inlet 113, one end of the backflow pipeline 7 is communicated with the third water outlet 82, the other end is communicated with the third water inlet 81, the drinking water pipeline 5 is communicated with the second water outlet 114, the waste water pipeline 6 is communicated with the waste water outlet 83.By setting backflow pipeline 7, pure water prepared by membrane filter core 8 is backflowed to the water inlet of membrane filter core 8, when membrane filter core 8 is stationary for a period of time, and the TDS of effluent is too high, at least part of this part of water with high TDS is backflowed to the water inlet of membrane filter core 8 for filtration again, to avoid the TDS of effluent of membrane filter core 8 being too high;Meanwhile, water storage composite filter core 1 can continue to produce water to fill the post-filter channel in water storage composite filter core 1 after water taking of water purification equipment is completed, so that water storage bag 14 stores pure water, and next time when taking water, high-TDS pure water is backflowed through backflow pipeline 7, at this time, drinking water effluent is the water storage in water storage bag 14, which can effectively reduce the TDS of first-stage pure water when water purification equipment is stationary for a period of time and then takes water.
[0029] Further, the clean water pipeline 3 comprises a clean water pipe 31, a first electromagnetic valve 32 and a booster pump 33, the first electromagnetic valve 32 and the booster pump 33 are sequentially arranged on the clean water pipe 31, one end of the clean water pipe 31 is connected with the first water outlet 112, and the other end is connected with the third water inlet 81. The first electromagnetic valve 32 is used to open or close the clean water pipeline 3; the booster pump 33 is used to increase the water pressure of the water entering the membrane filter element 8, so that the membrane filter element 8 can produce water under normal working pressure, i.e. higher than the water pressure of the clean water pipeline 3.
[0030] Further, the pure water pipeline 4 comprises a pure water pipe 41 and a second electromagnetic valve 42 arranged on the pure water pipe 41, one end of the pure water pipe 41 is connected with the third water outlet 82, and the other end is connected with the second water inlet 113.
[0031] Further, the second electromagnetic valve 42 is a concentrated water electromagnetic valve. The concentrated water electromagnetic valve is used to limit the flow and pressure of the water outlet of the membrane filter element 8, when the water outlet of the membrane filter element 8 needs to limit the flow and pressure, the concentrated water electromagnetic valve is closed; when the water outlet of the membrane filter element 8 does not need to limit the flow and pressure, the concentrated water electromagnetic valve can be opened, at this time the water is normally discharged. Specifically, the concentrated water electromagnetic valve still has a small flow passage after being closed, which can pass a small amount of water, the pure water with high TDS on the pure water side of the membrane filter element 8 is returned to the booster pump 33 through the check valve 72 for re-filtration, and a small part of the water enters the post-filtering channel through the concentrated water electromagnetic valve and is re-filtered by the post-filtering material 13.
[0032] Further, the pure water pipe 41 is provided with a first branch port 411, the first branch port 411 is located before the concentrated water electromagnetic valve, the clean water pipe 31 is provided with a second branch port 311, the second branch port 311 is located between the first electromagnetic valve 32 and the booster pump 33, one end of the reflux pipeline 7 is communicated with the first branch port 411, and the other end is communicated with the second branch port 311.
[0033] Further, the reflux pipeline 7 comprises a reflux pipe 71 and a check valve 72, the check valve 72 is arranged on the reflux pipe 71, one end of the reflux pipe 71 is connected with the first branch port 411, and the other end is connected with the second branch port 311. The check valve 72 is used to prevent the clean water in the clean water pipeline 3 from flowing back to the pure water pipeline 4, so as to avoid polluting the pure water in the pure water pipeline 4.
[0034] Further, the water storage composite filter element 1 comprises a filter element shell 11, a pre-filter material 12, a post-filter material 13, and a water storage bag 14, the water storage bag 14 is connected with the filter element shell 11 to divide the inner cavity of the filter element shell 11 into a raw water cavity and a pure water cavity, the pre-filter material 12 is arranged in the raw water cavity, the post-filter material 13 is arranged in the pure water cavity, the first water inlet 111, the second water inlet 113, the first water outlet 112, and the second water outlet 114 are all arranged on the filter element shell 11, the first water inlet 111 and the first water outlet 112 are both in communication with the raw water cavity, and the second water inlet 113 and the second water outlet 114 are both in communication with the pure water cavity. The pre-filter material 12 is arranged in a pre-filtering channel, and the pre-filter material 12 is used to pretreat the raw water before the raw water enters the membrane filter element 8, so as to prevent the particulate matters, residual chlorine and other impurities in the raw water from polluting and damaging the membrane of the membrane filter element 8; the post-filter material 13 is arranged in a post-filtering channel, and the post-filter material 13 is used to further treat the pure water filtered by the membrane filter element 8, so as to improve the drinking taste of the drinking water.
[0035] Further, the water storage composite filter element 1 comprises a flow guide shell 15, the flow guide shell 15 is connected with the filter element shell 11, the flow guide shell 15 is located in the raw water cavity, and the water storage bag 14 is located in the flow guide shell 15. The flow guide shell 15 can provide support for the water storage bag 14.
[0036] Specifically, the raw water enters the water storage composite filter element 1 from the first water inlet 111, the treated water after being treated by the pre-filter material 12 of the water storage composite filter element 1 flows out of the water storage composite filter element 1 through the first water outlet 112 and flows to the pure water pipeline 3; the pure water prepared by the membrane filter element 8 enters the water storage composite filter element 1 through the second water inlet 113, and the treated water after being treated by the post-filter material 13 of the water storage composite filter element 1 flows out of the water storage composite filter element 1 through the second water outlet 114, and the second water outlet 114 is connected with the drinking water outlet.
[0037] Specifically, the water storage bag 14 is an elastic water bag. The water storage bag 14 can be made of elastic materials such as rubber and silica gel; if the water stored in the water storage bag 14 is not only used for flushing the membrane filter element 8 but also used for drinking, food-grade materials need to be used for manufacturing; the water storage bag 14 is located on the inner side of the flow guide shell 15, the flow guide shell 15 can be used to support the water storage bag 14 and limit the deformation and expansion degree of the water storage bag 14. In some other embodiments, the water storage bag 14 can also be made of other non-elastic polymer materials.
[0038] Specifically, the pre-filter material 12 comprises PP cotton, activated carbon, folded paper PP, non-woven fabric and other filter materials used for pretreatment of water purifiers, and the pre-filter material 12 is used to pretreat the raw water flowing to the membrane filter element 8; the post-filter material 13 comprises activated carbon, ultrafiltration membrane, non-woven fabric and other filter materials used for post-treatment of pure water.
[0039] Further, the water storage bag 14 and the rear filter material 13 are both located inside the front filter material 12, the upper end of the flow guide shell 15 is sealingly connected with the front upper end cover, the lower end of the flow guide shell 15 is sealingly connected with the front lower end cover, the side wall of the flow guide shell 15 is provided with flow guide holes, and the treated water after the front filter material 12 treatment can flow out from the first water outlet 112 through the flow guide holes.
[0040] In one embodiment, referring to Figure 5 , the return pipeline 7 further comprises a third electromagnetic valve 73, which is arranged on the return pipeline 71 and located behind the check valve 72. The third electromagnetic valve 73 is used to open or close the return pipeline 7.
[0041] In another embodiment, referring to Figure 3 , the water storage composite filter element 1 comprises a filter element shell 11, a front filter material 12, a rear filter material 13, a flow guide shell 15 and a water storage bag 14. The water storage bag 14 is connected with the filter element shell 11 to divide the inner cavity of the filter element shell 11 into a raw water cavity and a pure water cavity. The front filter material 12 is arranged in the raw water cavity, and the rear filter material 13 is arranged in the pure water cavity. The first water inlet 111, the second water inlet 113, the first water outlet 112 and the second water outlet 114 are all arranged on the filter element shell 11. The first water inlet 111 and the first water outlet 112 are both in communication with the raw water cavity, and the second water inlet 113 and the second water outlet 114 are both in communication with the pure water cavity. The flow guide shell 15 is located in the raw water cavity, and the water storage bag 14 is located in the flow guide shell 15. In this embodiment, the water storage bag 14 and the rear filter material 13 are both located above the front filter material 12, and the flow guide shell 15 is also located above the front filter material 12. The lower end of the flow guide shell 15 is sealingly connected with the front upper end cover, and the upper end of the flow guide shell 15 is sealingly connected with the filter element shell 11.
[0042] Specifically, the front filter material 12 is a hollow structure, the middle part of which forms a front filter material central passage. The middle part of the front upper end cover is provided with a water passing hole. The outer side wall of the flow guide shell 15 and the inner side wall of the filter element shell 11 form a first passage, and the inner side wall of the flow guide shell 15 and the outer side wall of the water storage bag 14 form a second passage. The first water inlet 111, the first passage, the front filter material central passage, the water passing hole, the second passage and the first water outlet 112 are sequentially communicated. Raw water enters the water storage composite filter element 1 from the first water inlet 111, flows downward along the first passage, and the treated water after the front filter material 12 treatment flows upward from the front filter material central passage and passes through the water passing hole of the front upper end cover into the second passage, and then flows out of the water storage composite filter element 1 from the first water outlet 112 and flows to the treated water pipeline 3. The pure water prepared by the membrane filter element 8 enters the water storage composite filter element 1 from the second water inlet 113, is treated by the rear filter material 13 of the water storage composite filter element 1, and then flows out of the water storage composite filter element 1 from the second water outlet 114, and the second water outlet 114 is connected with a drinking water outlet.
[0043] In an alternative embodiment, referring to Figure 4 , the second electromagnetic valve 42 is a conventional electromagnetic valve, when the conventional electromagnetic valve is closed, the pure water with high TDS in the pure water side of the membrane filter element 8 all flows back to the booster pump 33 for filtration again through the check valve 72.
[0044] The above embodiments are only used to illustrate the technical solutions of the utility model, and do not limit the protection scope of the utility model.
Claims
1. A water purification apparatus, characterized by comprising: The water purification pipeline (3), the pure water pipeline (4), the backflow pipeline (7), the membrane filter core (8) and the water storage composite filter core (1) are included, the water storage composite filter core (1) includes the filter core shell (11) and the water storage bag (14), the first water inlet (111), the second water inlet (113), the first water outlet (112) and the second water outlet (114) are arranged on the filter core shell (11), the water storage bag (14) is connected with the filter core shell (11) to divide the inner cavity of the filter core shell (11) into raw water cavity and pure water cavity, the first water inlet (111), the raw water cavity and the first water outlet (112) are communicated to form a pre-filter channel, the second water inlet (113), the pure water cavity and the second water outlet (114) are communicated to form a post-filter channel, the membrane filter core (8) includes the third water inlet (81) and the third water outlet (82), one end of the water purification pipeline (3) is communicated with the first water outlet (112), and the other end is communicated with the third water inlet (81), one end of the pure water pipeline (4) is communicated with the third water outlet (82), and the other end is communicated with the second water inlet (113), one end of the backflow pipeline (7) is communicated with the third water outlet (82), and the other end is communicated with the third water inlet (81), and the first water inlet (111) is used for connecting a raw water pipeline, and the second water outlet (114) is used for connecting a drinking water pipeline.
2. The water purification apparatus according to claim 1, characterized by The water purification pipeline (3) includes a water purification pipeline (31), a first electromagnetic valve (32) and a booster pump (33), the first electromagnetic valve (32) and the booster pump (33) are sequentially arranged on the water purification pipeline (31), one end of the water purification pipeline (31) is connected with the first water outlet (112), and the other end is connected with the third water inlet (81).
3. The water purification apparatus according to claim 2, characterized by The pure water pipeline (4) includes a pure water pipeline (41) and a second electromagnetic valve (42) arranged on the pure water pipeline (41), one end of the pure water pipeline (41) is connected with the third water outlet (82), and the other end is connected with the second water inlet (113).
4. The water purification apparatus according to claim 3, characterized by The second electromagnetic valve (42) is a concentrated water electromagnetic valve.
5. The water purification apparatus according to claim 3 or 4, characterized by A first branch opening (411) is arranged on the pure water pipeline (41), the first branch opening (411) is located before the second electromagnetic valve (42), a second branch opening (311) is arranged on the water purification pipeline (31), the second branch opening (311) is located between the first electromagnetic valve (32) and the booster pump (33), one end of the backflow pipeline (7) is communicated with the first branch opening (411), and the other end is communicated with the second branch opening (311).
6. The water purification apparatus according to claim 5, characterized by The backflow pipeline (7) includes a backflow pipeline (71) and a check valve (72), the check valve (72) is arranged on the backflow pipeline (71), one end of the backflow pipeline (71) is connected with the first branch opening (411), and the other end is connected with the second branch opening (311).
7. The water purification apparatus according to claim 6, characterized by The return pipeline (7) further comprises a third electromagnetic valve (73) arranged on the return pipeline (71) and located behind the check valve (72).
8. The water purification apparatus according to any one of claims 1 to 4, characterized by The water storage composite filter element (1) further comprises a front filter material (12) and a rear filter material (13), the front filter material (12) being arranged in the raw water cavity, and the rear filter material (13) being arranged in the pure water cavity.
9. The water purification apparatus according to claim 8, characterized by The water storage bag (14) and the rear filter material (13) are both located inside the front filter material (12).
10. The water purification apparatus according to claim 8, characterized by The water storage bag (14) and the rear filter material (13) are both located above the front filter material (12).