CN213966013U - Reverse osmosis filter core and water purification system - Google Patents
Reverse osmosis filter core and water purification system Download PDFInfo
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- CN213966013U CN213966013U CN202021733306.5U CN202021733306U CN213966013U CN 213966013 U CN213966013 U CN 213966013U CN 202021733306 U CN202021733306 U CN 202021733306U CN 213966013 U CN213966013 U CN 213966013U
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- reverse osmosis
- water outlet
- end cover
- osmosis filter
- filter body
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Abstract
The utility model discloses a reverse osmosis filter core and water purification system. The reverse osmosis filter element comprises a shell and a filter body. The shell is provided with a raw water inlet, a pure water outlet and a wastewater outlet. An accommodating space is formed at the lower end of the filter body and the bottom of the shell, a central pipe is formed in the filter body, the upper end of the central pipe is communicated with the pure water outlet, and the lower end of the central pipe is communicated with the accommodating space; the reverse osmosis filter element has a filtering mode and a back flushing mode, and in the filtering mode, raw water enters the central tube after being filtered by the filter body from the raw water inlet and is discharged from the pure water outlet; under a back washing mode, the waste water in the filter body is discharged from the waste water outlet; the elastic air bag is arranged in the accommodating space; when the reverse osmosis filter element is in a filtering mode, the elastic air bag accumulates elastic potential energy; and in a backwashing mode, releasing elastic potential energy. The problem of the high TDS value of the first cup of water of reverse osmosis filter element among the prior art is solved.
Description
Technical Field
The utility model relates to a water purification technical field especially relates to a reverse osmosis filter core and use reverse osmosis filter core's water purification system.
Background
The Reverse Osmosis filter core is an application Reverse Osmosis membrane (RO), the RO membrane filters the filter core in order to obtain the pure water promptly, in the filter core system is packed into to the RO membrane, intake, the waste water accounts for than being far greater than the pure water in the filter core system, the complete machine is shut down the back, the solenoid valve that intakes is closed, the RO filter core forms a confined space, the waste water of the membrane area in the filter core and the waste water of filter core inner wall and RO membrane waste water end can mix with the raw water in the filter core and dilute, intake end TDS in the whole filter core is very high like this, and this part of water is more, when waiting to start the machine once more, the solenoid valve that intakes opens, under the effect of pressure, this part of high TDS value water that exists in the filter core can filter earlier, because the TDS value of intaking improves, the pure water TDS value of natural restart is just high, so generally first glass of water is not recommended to drink.
SUMMERY OF THE UTILITY MODEL
The utility model provides a water purifier of reverse osmosis filter core and applied this filter core aims at solving the not good problem of reverse osmosis filter core leakproofness among the prior art.
To solve the above problems. The utility model provides a reverse osmosis filter core, reverse osmosis filter core includes the casing, crosses filter body and elastic air bag. The shell is provided with a raw water inlet, a pure water outlet and a wastewater outlet; the filter body is arranged in the shell, an accommodating space is formed at the lower end of the filter body and the bottom of the shell, a central tube is formed in the filter body, the upper end of the central tube is communicated with the pure water outlet, and the lower end of the central tube is communicated with the accommodating space; the reverse osmosis filter element is provided with a filtering mode and a back flushing mode, and raw water enters the central tube from the raw water inlet through the filtering body and is discharged from the pure water outlet in the filtering mode; in the back washing mode, the waste water in the filter body is discharged from the waste water outlet; the elastic air bag is arranged in the accommodating space; the elastic air bag is used for accumulating elastic potential energy by deforming under the action of water pressure when the reverse osmosis filter element is in a filtering mode; so that the reverse osmosis filter element is in a back washing mode to release the accumulated elastic potential energy.
Preferably, the filtering body comprises an RO membrane element, the filtering body is the RO membrane element, the RO membrane element is attached to the central tube, and a water inlet is formed in the side wall of the central tube.
Preferably, the upper end cover and the lower end cover are respectively arranged at the upper end and the lower end of the filter body, the upper end cover is provided with a raw water inlet and a waste water outlet, the raw water inlet and the waste water outlet of the upper end cover are respectively communicated with the raw water inlet and the waste water outlet of the shell, the upper end cover and the lower end cover are respectively provided with a through hole, and the through hole of the upper end cover or the lower end cover is used for being communicated with the water outlet at the upper end or the lower end of the central tube; or:
the central pipe passes through the through hole of the upper end cover or the lower end cover.
Preferably, the lower end cover is provided with a fixed plug extending into a water outlet at the lower end of the central tube, and the pressure maintaining hole is formed in the fixed plug.
Preferably, the pressure maintaining hole includes a first pressure maintaining hole and a second pressure maintaining hole, and the first pressure maintaining hole and the second pressure maintaining hole are both disposed on the fixed plug.
Preferably, a sealing sleeve is attached to the peripheral wall of the filter body, and the sealing sleeve is in sealing connection with the upper end cover and the lower end cover; or:
the upper end cover, the lower end cover and the seal sleeve are integrally arranged.
Preferably, a sealing member is disposed at a joint of the upper end cover and the housing.
Preferably, the upper end cover and the lower end cover are respectively attached to the upper end face and the lower end face of the RO membrane element, and the joints of the upper end cover, the lower end cover and the RO membrane element are coated with sealant.
The utility model also provides a water purification system, water purification system includes the reverse osmosis filter core.
The technical scheme of the utility model a water purification system that is used for having reverse osmosis filter core and uses this filter core of good leakproofness. Specifically, the reverse osmosis filter element comprises a shell, a filter body and an elastic air bag, and the reverse osmosis filter element has a filtering mode and a back flushing mode. When the reverse osmosis filter element is in a filtering mode, the elastic air bag is used for being deformed by water pressure to accumulate elastic potential energy when the reverse osmosis filter element is in the filtering mode; so that the reverse osmosis filter element is in a back washing mode to release the accumulated elastic potential energy. The utility model provides a reverse osmosis filter core that first cup of water TDS value is lower, and use reverse osmosis filter core's water purification system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of the reverse osmosis filter element of the present invention in a filtration mode;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic diagram of the reverse osmosis cartridge of FIG. 1 in a backwash mode;
FIG. 4 is an enlarged view at B in FIG. 3;
the reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. If there is a description in an embodiment of the present invention referring to "first", "second", etc., the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It should be noted that the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The Reverse Osmosis filter element 10 (RO) is a membrane separation filter element using osmotic pressure difference as motive force. Because the RO reverse osmosis membrane aperture is little, under certain pressure, the hydrone can pass through the RO membrane, and inorganic salt, heavy metal ion, organic matter, colloid, bacterium, virus etc. impurity in the source aquatic can't pass through the RO membrane to through reverse osmosis membrane filters, can separate pure water and the concentrate that can't see through the RO membrane promptly strictly.
However, the RO membrane is in operation when installed in the cartridge. Raw water, the proportion of waste water in filter core system is far greater than the pure water, the complete machine is shut down the back, the solenoid valve of intaking is closed, the RO filter core forms a confined space, waste water in the membrane area in the filter core and the waste water of filter core inner wall and RO membrane waste water end can mix with the raw water in the filter core and dilute, the end TDS of intaking in the whole filter core like this is very high, TDS is the english acronym of Total Dissolved solid matter (Total Dissolved Solids), refers to the concentration of Total Dissolved material in the water. TDS values are generally used to measure the purity of purified water. Wait to when the restart machine, the solenoid valve of intaking is opened, and under the effect of pressure, this part high TDS value water of depositing in the filter core can filter earlier, because the TDS value of intaking improves, and the pure water TDS value of natural restart is just high, so general first glass of water is that the suggestion is drunk.
Referring to fig. 1 to 4, in order to reduce the TDS value of the first cup of water, the present invention provides a reverse osmosis filter element 10. The shell 11 is provided with a raw water inlet 11a, a pure water outlet 11b and a wastewater outlet 11 c; the filter body 13 is arranged in the shell, an accommodating space 16 is formed at the lower end of the filter body 13 and the bottom of the shell 11, a central tube 12 is formed in the filter body 13, the upper end of the central tube 12 is communicated with the pure water outlet 11b, and the lower end of the central tube is communicated with the accommodating space 16; the reverse osmosis filter element 10 has a filtration mode in which raw water enters the central tube 12 from the raw water inlet 11a via the filter body 13 and is discharged from the pure water outlet 11b, and a back-wash mode; in the back washing mode, the waste water in the filter body is discharged from the waste water outlet 11 c; the elastic air bag 14 is disposed inside the accommodating space 16; the elastic air bag 14 is used for accumulating elastic potential energy when the reverse osmosis filter element 10 is in a filtering mode and is deformed by water pressure; so that the reverse osmosis filter element 10 is in a back flushing mode to release the accumulated elastic potential energy.
Specifically, when the reverse osmosis filter element 10 is in a filtering state, raw water to be treated is pressed in from the raw water inlet of the shell 11 by external pressure, and then is filtered by the filter body 13 to generate pure water and wastewater. The pure water and the waste water respectively flow out from the pure water outlet of the shell 11 and the waste water outlet of the shell 11. At this time, water in three states of raw water, pure water and waste water is present in the filter body 13.
Unlike the reverse osmosis filter cartridge 10 of the prior art, a receiving space 16 is formed between the lower end of the filter body 13 and the inner wall of the housing 11. Pure water flows into the accommodating space 16 from the pressure maintaining hole 15, and the elastic air bag 14 disposed in the accommodating space 16 is elastically deformed by a certain pressure due to the existence of the external pressure. At this time, the elastic airbag 14 is located at the first position avoiding the pressure maintaining hole 15, the elastic airbag 14 partially fills the accommodating space 16, and a portion of pure water fills the other portion of the accommodating space 16. When the reverse osmosis filter element 10 stops working, the elastic air bag 14 begins to expand due to elastic deformation because the elastic air bag 14 is not subjected to the external pressure any more. So that the pure water in the accommodating space 16 is pressed into the filter body 13. And plays a role of back flushing the filter body 13. Because the proportion of the pure water in the filter body 13 is increased after the filter body 13 is back washed, the TDS value in the filter body 13 is reduced when the reverse osmosis filter element 10 stops working, and the problem of high TDS value of the primary cup of water is solved. Further, after the flushing process is completed, the elastic air bag 14 is inflated to the second position covering the communication hole. At this time, the water in the filter body 13 does not flow into the accommodating space 16. When the reverse osmosis filter element 10 is started again, the water stored in the accommodating space 16 is pure water.
Referring to fig. 1, the filter body 13 includes an RO membrane element 131, the RO membrane element 131 is attached to the central tube 12, a water inlet is disposed on a side wall of the central tube 12, water outlets are disposed at upper and lower ends of the central tube 12, the water outlet at the upper end of the central tube is communicated with the pure water outlet of the housing 11, and the water outlet at the lower end of the central tube is communicated with the pressure maintaining hole 15. Specifically, raw water flows into the RO membrane elements 131 for filtration, and purified pure water flows into the central tube 12 from the water inlet on the side wall of the central tube. Because a certain amount of gas exists in the accommodating space 16, a part of the pure water moves upwards and flows into the water outlet at the upper end of the central tube, and flows into the outside through the pure water outlet of the shell 11. Another portion of the pure water flows out through the water outlet 122c from the lower end of the central tube, and because the water outlet from the lower end of the central tube and the pressure maintaining hole 15 are communicated, the pure water flows into the accommodating space 16 through the pressure maintaining hole 15. Achieving the effect of water storage. When the reverse osmosis filter element is stopped, water flows into the RO membrane element 131 from the water inlet of the central tube for back flushing.
An upper end cover and a lower end cover are respectively arranged at the upper end and the lower end of the filter body 13, the upper end cover is provided with a raw water inlet and a waste water outlet, the raw water inlet and the waste water outlet of the upper end cover are respectively communicated with the raw water inlet 11a and the waste water outlet 11c of the shell, the upper end cover and the lower end cover are respectively provided with a through hole, and the through hole of the upper end cover or the lower end cover is used for being communicated with the water outlet at the upper end or the lower end of the central tube 12; or: the central tube 12 passes through the through hole of the upper end cover or the lower end cover. Specifically, the upper end cap and the lower end cap serve to connect the housing 11 and the filter body 13. Further, the upper end cap, the lower end cap and the filter body 13 wound with the RO membrane element 131 may be assembled together. After the assembly is inserted into the housing 11. In this manner, the production efficiency of the reverse osmosis cartridge 10 may be increased.
Please refer to fig. 2 or fig. 4. The lower end cover is provided with a fixed plug extending into a water outlet at the lower end of the central tube 12, and the pressure maintaining hole 15 is formed in the fixed plug. Specifically, the lower end cap is fitted to the central tube 12 and the RO membrane via the fixing plug. Further, in order to ensure that the gas in the accommodating space 16 does not flow into the central tube 12, the pressure maintaining hole 15 may be provided as a small hole. In a preferred embodiment, the pressure holding hole 15 is a small hole provided in the fixed plug.
In order to increase the service life of the reverse osmosis cartridge 10. The stationary plug is provided with a plurality of pressure maintaining holes 15. In a preferred embodiment, the dwell hole includes a first dwell hole 15 and a second dwell hole, both of which are provided on the plunger. Further, the first and second pressure maintaining holes 15 and 15 may be symmetrically disposed in consideration of air pressure balance.
It should be noted that the buffer space is sealed except for the pressure maintaining hole 15, so that the pressure in the reverse osmosis filter element 10 can be sufficiently maintained to achieve the back flushing function. In order to realize the sealing of the filter body 13 and the housing 11, the utility model adopts various measures to ensure the sealing between each surface of the filter body 13 and the housing 11.
In a preferred embodiment, for sealing between the upper end cap and the housing 11. And a sealing element is arranged at the joint of the upper end cover and the shell 11. The sealing element can be a sealing cover, and can also be a sealing glue, a sealing ring and the like. The seal arrangement serves to sealingly connect the upper end cap to the housing 11. There is no gap between the upper end cap and the housing 11 except for the raw water inlet, the waste water outlet, and the through hole for the central tube 12 to pass through.
In a preferred embodiment, the filter body 13 is also sealed at its periphery to the housing 11. A sealing sleeve 130 is attached to the peripheral wall of the filter body 13, and the sealing sleeve 130 is connected with the upper end cover and the lower end cover in a sealing manner; or: the upper end cover, the lower end cover and the sealing sleeve 130 are integrally arranged. The sealing sleeve 130 on the one hand functions as an outer frame, so that the filter body 13 cannot deform laterally. On the other hand, the sealing sleeve 130 plays a role of sealing, and the sealing sleeve 130 is used for sealing the inner wall of the housing 11 and the periphery of the filter body 13.
The material of the sealing sleeve 130 can be selected from various materials, and the material of the sealing sleeve 130 is plastic, metal or a mixture of glass fiber and glue. That is, the sealing sleeve 130 may be a plastic sleeve, a metal sleeve, or a mixture of glass fiber and glue applied to the outer peripheral wall of the RO membrane element 131.
In a preferred embodiment, the upper end cap and the lower end cap are respectively attached to the upper end surface and the lower end surface of the RO membrane element 131, and a sealant is coated at the joint of the upper end cap, the lower end cap and the RO membrane element. In this way, the upper end cap, the lower end cap and the filter body 13 are tightly connected. This arrangement further ensures the tightness between the filter body 13 and the housing 11.
The utility model also provides a water purification system, water purification system includes reverse osmosis filter core 10. Further, the reverse osmosis filter element 10 is installed in the water purification system. The water purification system comprises pipelines respectively communicated with the raw water inlet, the pure water outlet and the wastewater outlet of the shell 11. Further, a pressurizing device is arranged on a pipeline communicated with the raw water inlet of the shell 11, and the pressurizing device is used for realizing external pressure type filtration of the reverse osmosis filter element 10.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (9)
1. A reverse osmosis cartridge, comprising:
the device comprises a shell, a water inlet, a pure water outlet and a waste water outlet, wherein the shell is provided with a raw water inlet, a pure water outlet and a waste water outlet;
the filter body is arranged in the shell, accommodating spaces are formed at the lower end of the filter body and the bottom of the shell, a central pipe is formed in the filter body, the upper end of the central pipe is communicated with the pure water outlet, and the lower end of the central pipe is communicated with the accommodating spaces; the reverse osmosis filter element is provided with a filtering mode and a back flushing mode, and raw water enters the central tube from the raw water inlet through the filtering body and is discharged from the pure water outlet in the filtering mode; in the back washing mode, the waste water in the filter body is discharged from the waste water outlet;
the elastic air bag is arranged in the accommodating space; the elastic air bag is used for accumulating elastic potential energy by deforming under the action of water pressure when the reverse osmosis filter element is in a filtering mode; so that the reverse osmosis filter element is in a back washing mode to release the accumulated elastic potential energy.
2. The reverse osmosis filter cartridge of claim 1, wherein the filter body is an RO membrane element, the RO membrane element is attached to the central tube, and the side wall of the central tube is provided with the water inlet.
3. The reverse osmosis filter element of claim 2, wherein the upper end and the lower end of the filter body are respectively provided with an upper end cover and a lower end cover, the upper end cover is provided with a raw water inlet and a waste water outlet, the raw water inlet and the waste water outlet of the upper end cover are respectively communicated with the raw water inlet and the waste water outlet of the shell, the upper end cover and the lower end cover are respectively provided with a through hole, and the through hole of the upper end cover or the lower end cover is used for being communicated with the water outlet at the upper end or the lower end of the central tube; or:
the central pipe passes through the through hole of the upper end cover or the lower end cover.
4. The reverse osmosis filter element of claim 3, wherein the lower end cap is provided with a fixed plug extending into the water outlet at the lower end of the central tube, and the fixed plug is provided with a pressure maintaining hole.
5. The reverse osmosis filter cartridge of claim 4, wherein the hold-down apertures comprise a first hold-down aperture and a second hold-down aperture, the first hold-down aperture and the second hold-down aperture both disposed on the fixed plug.
6. The reverse osmosis filter element of claim 3, wherein a sealing sleeve is attached to the outer peripheral wall of the filter body, and the sealing sleeve is in sealing connection with the upper end cover and the lower end cover; or:
the upper end cover, the lower end cover and the seal sleeve are integrally arranged.
7. The reverse osmosis filter cartridge of claim 3, wherein a seal is disposed at a junction of the upper end cap and the housing.
8. The reverse osmosis filter element of claim 3, wherein the upper end cap and the lower end cap are respectively attached to the upper end face and the lower end face of the RO membrane element, and the joint of the upper end cap, the lower end cap and the RO membrane element is coated with a sealant.
9. A water purification system comprising a reverse osmosis cartridge according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021733306.5U CN213966013U (en) | 2020-08-18 | 2020-08-18 | Reverse osmosis filter core and water purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021733306.5U CN213966013U (en) | 2020-08-18 | 2020-08-18 | Reverse osmosis filter core and water purification system |
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| Publication Number | Publication Date |
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| CN213966013U true CN213966013U (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021733306.5U Active CN213966013U (en) | 2020-08-18 | 2020-08-18 | Reverse osmosis filter core and water purification system |
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| CN (1) | CN213966013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113772837A (en) * | 2021-08-20 | 2021-12-10 | 佛山市麦克罗美的滤芯设备制造有限公司 | Filter core and water purification system |
-
2020
- 2020-08-18 CN CN202021733306.5U patent/CN213966013U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113772837A (en) * | 2021-08-20 | 2021-12-10 | 佛山市麦克罗美的滤芯设备制造有限公司 | Filter core and water purification system |
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