CN215516940U - Water quality filtering device - Google Patents
Water quality filtering device Download PDFInfo
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- CN215516940U CN215516940U CN202121419452.5U CN202121419452U CN215516940U CN 215516940 U CN215516940 U CN 215516940U CN 202121419452 U CN202121419452 U CN 202121419452U CN 215516940 U CN215516940 U CN 215516940U
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Abstract
The utility model discloses a water quality filtering device, which comprises a preposed filter element, a supercharging device, an RO membrane filter element, a backflow branch and a water taking device, wherein the preposed filter element is connected with the supercharging device; the front filter element is provided with a raw water inlet; the RO membrane filter element is provided with a waste water end; the raw water inlet is communicated with an external water source; the inlet end of the backflow branch is communicated with the wastewater end, and the outlet end of the backflow branch is communicated between the raw water inlet and an external water source; the backflow branch comprises a mixed ion exchanger, and the mixed ion exchanger is used for desalting the wastewater of the RO membrane filter element. Quality of water filter equipment has set up mixed ion exchanger, carries out desalination to the waste water that the RO membrane filter core produced, makes the treated water filter again and utilize, provides the utilization ratio of waste water, reduces metal ion's such as calcium ion, magnesium ion content in the waste water to avoid the waste water backward flow to lead to the phenomenon of RO membrane filter core scale deposit, improve the life of RO membrane filter core.
Description
Technical Field
The utility model relates to the technical field of water purification, in particular to a water quality filtering device.
Background
In the prior art, a reverse osmosis membrane is often used to purify tap water to prepare pure water which can be directly drunk. The reverse osmosis membrane can effectively prevent substances such as bacteria, viruses, water scales, salt ions and the like and only allows water molecules to pass through, thereby ensuring the safety of water. During the treatment process, substances such as bacteria, viruses, scale, salt ions and the like which do not pass through the reverse osmosis membrane form concentrated water to be discharged. The common reverse osmosis membrane generates more concentrated water during purification and wastes, and the utilization rate of water is not high. The existing water quality filtering device mainly utilizes a reverse osmosis concentrated water reflux method to mix concentrated water into raw water for reverse osmosis again, so that the recovery rate can be improved, but the reverse osmosis reflux rate is higher, the scaling phenomenon is easily caused, the service life of an RO membrane can be influenced, and the cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a water quality filtering device to solve the problem that the service life of an RO membrane is influenced by the scaling phenomenon caused by the backflow of wastewater.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a water quality filtering device, which comprises a preposed filter element, a supercharging device, an RO membrane filter element, a backflow branch and a water taking device, wherein the preposed filter element is connected with the supercharging device;
the preposed filter element is provided with a raw water inlet and a primary filter water outlet; the RO membrane filter element is provided with a water inlet end, a water outlet end and a wastewater end;
the raw water inlet is communicated with an external water source; the primary filter water outlet is communicated with the water inlet end, and the supercharging device is arranged between the primary filter water outlet and the water inlet end; the water outlet end is communicated with the water taking device;
the inlet end of the backflow branch is communicated with the wastewater end, and the outlet end of the backflow branch is communicated between the raw water inlet and an external water source;
the backflow branch comprises a mixed ion exchanger, and the mixed ion exchanger is used for desalting the wastewater of the RO membrane filter element.
In the water quality filtering device, the mixed ion exchanger comprises a cylinder body, an upper flip cover, a lower flip cover, an upper positioning mechanism, a lower positioning mechanism, a cation exchange unit, an anion exchange unit, a water inlet pipe and a water outlet pipe;
the upper turnover cover and the lower turnover cover are respectively arranged at the upper end and the lower end of the cylinder body;
the upper positioning mechanism is arranged at the upper part in the cylinder body, and the lower positioning mechanism is arranged at the lower part in the cylinder body;
the cation exchange unit is detachably arranged in the cylinder body through the upper positioning mechanism, and the anion exchange unit is detachably arranged in the cylinder body through the lower positioning mechanism;
the inlet tube sets up go up flip and with the inside intercommunication of barrel, the outlet pipe sets up flip down and with the inside intercommunication of barrel.
In the water quality filtering device, the cation exchange unit comprises an upper storage box, cation exchange resin and an upper operating handle; the upper storage box is connected with the cylinder through the upper positioning mechanism, the cation exchange resin is arranged in the upper storage box, and the upper operating handle is arranged on the upper surface of the upper storage box; the bottom and at least one outer surface of the upper storage box are provided with a plurality of upper through holes;
the inner wall of the cylinder body is provided with an upper guide groove; the upper positioning mechanism comprises an upper positioning column, the upper guide groove is formed in the upper portion of the inner wall of the cylinder, one end of the upper positioning column is connected with the upper storage box, and the other end of the upper positioning column extends into the upper guide groove.
In the water quality filtering device, the backflow branch further comprises a water storage tank and a backflow check valve;
the water storage tank is communicated with the water outlet end of the mixed ion exchanger;
the backflow check valve is arranged at the water outlet end of the water storage tank.
In the water quality filtering device, the backflow branch also comprises a carbon rod filter element; the carbon rod filter element is communicated between the mixed ion exchanger and the water storage tank.
The water quality filtering device also comprises a water taking check valve which is arranged between the water outlet end and the water taking device.
The water quality filtering device also comprises a water inlet valve and a high-pressure switch;
the water inlet valve is arranged between the primary filtering water outlet and the supercharging device;
the high-voltage switch is positioned between the water taking check valve and the water taking device; the high-pressure switch is electrically connected with the supercharging device and the water inlet valve respectively.
One technical scheme in the utility model can have the following beneficial effects:
the water quality filtering device is provided with the mixed ion exchanger, and the waste water generated by the RO membrane filter element is desalted, so that the waste water is converted into treated water, and the treated water is mixed into the original water, so that the treated water is re-filtered and utilized, and the utilization rate of the waste water is improved. Through the treatment of the mixed ion exchanger, the content of metal ions such as calcium ions, magnesium ions and the like in the wastewater is reduced, so that the phenomenon that the RO membrane filter core is scaled due to the backflow of the wastewater is avoided, and the service life of the RO membrane filter core is prolonged.
Drawings
The drawings are further illustrative of the utility model and the content of the drawings does not constitute any limitation of the utility model.
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a hybrid ion exchanger according to one embodiment of the present invention;
in the drawings: the device comprises a preposed filter element 1, a supercharging device 2, an RO membrane filter element 3, a backflow branch 4, a water taking device 5, a water taking check valve 6, a water inlet valve 7 and a high-pressure switch 8;
a raw water inlet 11 and a primary filtering water outlet 12; a water inlet end 31, a water outlet end 32 and a wastewater end 33; a mixed ion exchanger 41, a water storage tank 42, a backflow check valve 43 and a carbon rod filter element 44;
a cylinder 411, an upper flip cover 412, a lower flip cover 413, an upper positioning mechanism 414, a lower positioning mechanism 415, a cation exchange unit 416, an anion exchange unit 417, a water inlet pipe 418 and a water outlet pipe 419; an upper guide groove 410; an upper storage box 4161 and an upper operation handle 4162.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, the present invention provides a water filtering device, which includes a pre-filter element 1, a pressurizing device 2, an RO membrane filter element 3, a backflow branch 4 and a water intake device 5;
the preposed filter element 1 is provided with a raw water inlet 11 and a primary filtering water outlet 12; the RO membrane cartridge 3 has a water inlet end 31, a water outlet end 32 and a waste water end 33;
the raw water inlet 11 is communicated with an external water source; the primary filtering water outlet 12 is communicated with the water inlet end 31, and the supercharging device 2 is arranged between the primary filtering water outlet 12 and the water inlet end 31; the water outlet end 32 is communicated with the water taking device 5;
the inlet end of the backflow branch 4 is communicated with the waste water end 33, and the outlet end of the backflow branch 4 is communicated between the raw water inlet 11 and an external water source;
the return branch 4 comprises a mixed ion exchanger 41, and the mixed ion exchanger 41 is used for desalting the wastewater of the RO membrane filter element 3.
According to the technical scheme, the water quality filtering device is provided with the mixed ion exchanger 41, desalination treatment is carried out on the wastewater generated by the RO membrane filter element 3, the wastewater is converted into treated water, the treated water is mixed into the original water, the treated water is filtered and utilized again, and the utilization rate of the wastewater is improved. Through the treatment of the mixed ion exchanger 41, the content of metal ions such as calcium ions, magnesium ions and the like in the wastewater is reduced, so that the phenomenon that the RO membrane filter element 3 is scaled due to the backflow of the wastewater is avoided, and the service life of the RO membrane filter element 3 is prolonged.
Raw water is provided by an external water source, the raw water enters the preposed filter element 1, the preposed filter element 1 filters the raw water into primary filtered water, and the RO membrane filter element 3 filters the primary filtered water into purified water and generates wastewater.
Referring to fig. 2, specifically, the mixed ion exchanger 41 includes a cylinder 411, an upper cover 412, a lower cover 413, an upper positioning mechanism 414, a lower positioning mechanism 415, a cation exchange unit 416, an anion exchange unit 417, a water inlet pipe 418, and a water outlet pipe 419;
the upper turning cover 412 and the lower turning cover 413 are respectively arranged at the upper end and the lower end of the cylinder 411;
the upper positioning mechanism 414 is arranged at the upper part in the cylinder 411, and the lower positioning mechanism 415 is arranged at the lower part in the cylinder 411;
the cation exchange unit 416 is detachably mounted in the cylinder 411 through the upper positioning mechanism 414, and the anion exchange unit 417 is detachably mounted in the cylinder 411 through the lower positioning mechanism 415;
the water inlet pipe 418 is arranged on the upper cover 412 and is communicated with the inside of the cylinder 411, and the water outlet pipe 419 is arranged on the lower cover 413 and is communicated with the inside of the cylinder 411.
With this structure, the raw water enters from the upper water inlet pipe 418 and contacts with the cation exchange unit 416, the positive salt ions to be desalinated in the raw water are replaced by the hydrogen ions of the cation exchange unit 416, the positive salt ions are adsorbed by the cation exchange unit 416, the replaced hydrogen ions enter the lower anion exchange unit 417 along with the raw water, the negative salt ions to be desalinated in the raw water are replaced by the hydroxide ions of the anion exchange unit 417, the negative salt ions are adsorbed by the anion exchange unit 417, and the replaced hydroxide ions react with the hydrogen ions to form water and are discharged from the water outlet pipe 419 in the form of treated water.
The detachable structure is formed by matching the upper positioning mechanism 414 and the cation exchange unit 416, so that the cation exchange unit 416 can be conveniently installed or detached, the operations of replacing, backwashing, regenerating or replacing reactants of the cation exchange unit 416 and the like can be conveniently carried out, and the detached cation exchange unit 416 can be removed or re-installed through the upper flip cover 412. The lower positioning mechanism 415 and the anion exchange unit 417 cooperate to also facilitate the removal and installation of the anion exchange unit 417.
Specifically, the cation exchange unit 416 comprises an upper storage bin 4161, cation exchange resin, and an upper operating handle 4162; the upper storage tank 4161 is connected with the cylinder body through the upper positioning mechanism, the cation exchange resin is arranged in the upper storage tank 4161, and the upper operating handle 4162 is arranged on the upper surface of the upper storage tank 4161; the bottom and at least one outer surface of the upper storage box 4161 are provided with a plurality of upper through holes;
the inner wall of the cylinder 411 is provided with an upper guide groove 410; the upper positioning mechanism 414 includes an upper positioning column, the upper guide groove 410 is disposed on the upper portion of the inner wall of the cylinder 411, one end of the upper positioning column is connected to the upper storage box 4161, and the other end of the upper positioning column extends into the upper guide groove 410.
In one embodiment of the present invention, the cation exchange unit 416 further comprises a cation exchange membrane disposed below the upper storage bin 4161. The cation exchange membrane is arranged, so that residual cations in the wastewater can be adsorbed on the cation exchange membrane, and a further filtering effect is achieved on the wastewater.
After the upper flip cover is opened, the upper storage box 4161 is moved out of the cylinder 411 through the upper positioning mechanism 414 by applying force on the upper operating handle 4162, the operation is convenient and simple, and meanwhile, the bottom surface and at least one outer surface of the upper storage box 4161 are provided with upper through holes for filtering. At least one outer surface of upper reservoir tank 4161 may include one or more of a top surface and four side walls of upper reservoir tank 4161, and raw water is introduced into the cylinder, introduced into upper reservoir tank 4161 through the upper through-holes of the top surface or the side walls, and filtered water is discharged through the upper through-holes of the bottom after being filtered by the cation exchange resin.
With this structure, the cation exchange unit 416 is loaded into the tubular body 411 along the upper guide groove 410 by applying a force to the upper operating handle 4162, the structure is simple, and the upper storage bin 4161 is positioned when the upper positioning column contacts the lower bottom of the upper guide groove 410.
In one embodiment of the utility model, the anion exchange unit comprises a lower storage tank, anion exchange resin, a lower operating handle and an anion exchange membrane; the anion exchange membrane is arranged above the lower storage box; the lower storage box is connected with the cylinder through the lower positioning mechanism, the anion exchange resin is arranged in the lower storage box, and the lower operating handle is arranged on the lower surface of the lower storage box; the top surface and at least one surface of lower storage case all are provided with a plurality of lower through-holes.
Similarly, adopt this kind of structure, open down flip after, through the application of force effect under on the operating handle, make down in the storage case shifts out the barrel through positioning mechanism down, convenient operation, simple, simultaneously, the top surface and the at least one surface of lower storage case set up down the through-hole, can be used to filter. At least one outer surface of the lower storage tank can comprise the bottom surface or at least one side wall of the lower storage tank, raw water enters the cylinder body and enters the lower storage tank through the lower through hole in the top surface, and filtered water flows out through the lower through hole in the bottom or the side wall after being filtered by cation exchange resin.
Specifically, the return branch 4 further includes a water storage tank 42 and a return check valve 43;
the water storage tank 42 is communicated with the water outlet end of the mixed ion exchanger 41;
the backflow check valve 43 is arranged at the water outlet end of the water storage tank 42.
In order to avoid an increase in load on the RO membrane in the RO membrane cartridge 3 due to a large amount of treated water entering the RO membrane cartridge 3 in a short time, it is necessary to mix the treated water with the raw water several times. The storage tank 42 is used for storing the treated water, and in an embodiment of the present invention, a metering pump is disposed in the storage tank 42, and the storage tank 42 delivers the treated water to the return branch 4 through the metering pump, so that the treated water is mixed with the raw water.
The backflow check valve 43 can refer to a check valve of an existing water purifier, so that water cannot reversely flow into the water storage tank 42 from an external water source, raw water is prevented from entering the mixed water storage tank 42, and treated water in the water storage tank 42 is ensured to reenter the pre-filter element 1.
Optionally, the return branch 4 further comprises a carbon rod filter element 44; the carbon rod filter element 44 is communicated between the mixed ion exchanger 41 and the water storage tank 42.
The carbon rod filter element 44 plays a role in adsorbing organic particles, rust, residual chlorine and peculiar smell in the treated water, avoids the problem that impurities in the treated water are accumulated in the water storage tank 42, and further reduces the burden of the RO membrane in the RO membrane filter element 3.
Further, the water quality filtering device further comprises a water taking check valve 6, and the water taking check valve 6 is arranged between the water outlet end 32 and the water taking device 5.
The water intake check valve 6 can refer to the existing check valve of the water purifier, so that the water flow can not reversely return to the water outlet end 32 from the water intake device 5, and the purified water is prevented from flowing back into the RO membrane filter element 3 again.
Furthermore, the water quality filtering device also comprises a water inlet valve 7 and a high-pressure switch 8;
the water inlet valve 7 is arranged between the primary filter water outlet 12 and the supercharging device 2;
the high-voltage switch 8 is positioned between the water taking check valve 6 and the water taking device 5; the high-pressure switch 8 is electrically connected with the supercharging device 2 and the water inlet valve 7 respectively.
As an embodiment, the water quality filtering device further comprises a water inlet valve 7 and a high pressure switch 8. When the water taking device 5 is closed, the supercharging device 2 continues to work, so that the RO membrane can continue to produce water, the pressure of a water path between the water taking check valve 6 and the water taking device 5 also gradually rises, and when the pressure of the water path reaches the threshold value of the high-pressure switch 8, the high-pressure switch 8 controls the supercharging device 2 and the water inlet valve 7 to be closed; the water intake check valve 6 can keep the water path between the water intake check valve 6 and the water intake device 5 in a high pressure state, thereby preventing the supercharging device 2 from starting in a standby state.
When the water taking device 5 is opened, water flows out of the water taking device 5, so that the pressure between the water taking check valve 6 and the water taking device 5 is reduced; when the waterway pressure between the water taking check valve 6 and the water taking device 5 is lower than the threshold value of the high-pressure switch 8, the high-pressure switch 8 controls the supercharging device 2 and the water inlet valve 7 to be opened, the supercharging device 2 continues to work, and water discharged by the preposed filter element 1 is pumped into the RO membrane filter element 3, so that the RO membrane filter element 3 can continue to make water.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Other embodiments of the utility model will occur to those skilled in the art without the exercise of inventive faculty based on the explanations herein, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (7)
1. A water quality filtering device is characterized in that: the device comprises a preposed filter element, a supercharging device, an RO membrane filter element, a backflow branch and a water taking device;
the preposed filter element is provided with a raw water inlet and a primary filter water outlet; the RO membrane filter element is provided with a water inlet end, a water outlet end and a wastewater end;
the raw water inlet is communicated with an external water source; the primary filter water outlet is communicated with the water inlet end, and the supercharging device is arranged between the primary filter water outlet and the water inlet end; the water outlet end is communicated with the water taking device;
the inlet end of the backflow branch is communicated with the wastewater end, and the outlet end of the backflow branch is communicated between the raw water inlet and an external water source;
the backflow branch comprises a mixed ion exchanger, and the mixed ion exchanger is used for desalting the wastewater of the RO membrane filter element.
2. A water filtration device as claimed in claim 1 wherein: the mixed ion exchanger comprises a cylinder body, an upper flip cover, a lower flip cover, an upper positioning mechanism, a lower positioning mechanism, a cation exchange unit, an anion exchange unit, a water inlet pipe and a water outlet pipe;
the upper turnover cover and the lower turnover cover are respectively arranged at the upper end and the lower end of the cylinder body;
the upper positioning mechanism is arranged at the upper part in the cylinder body, and the lower positioning mechanism is arranged at the lower part in the cylinder body;
the cation exchange unit is detachably arranged in the cylinder body through the upper positioning mechanism, and the anion exchange unit is detachably arranged in the cylinder body through the lower positioning mechanism;
the inlet tube sets up go up flip and with the inside intercommunication of barrel, the outlet pipe sets up flip down and with the inside intercommunication of barrel.
3. A water filtration device as claimed in claim 2 wherein: the cation exchange unit comprises an upper storage box, cation exchange resin and an upper operating handle; the upper storage box is connected with the cylinder through the upper positioning mechanism, the cation exchange resin is arranged in the upper storage box, and the upper operating handle is arranged on the upper surface of the upper storage box; the bottom and at least one outer surface of the upper storage box are provided with a plurality of upper through holes;
the inner wall of the cylinder body is provided with an upper guide groove; the upper positioning mechanism comprises an upper positioning column, the upper guide groove is formed in the upper portion of the inner wall of the cylinder, one end of the upper positioning column is connected with the upper storage box, and the other end of the upper positioning column extends into the upper guide groove.
4. A water filtration device as claimed in claim 1 wherein: the backflow branch also comprises a water storage tank and a backflow check valve;
the water storage tank is communicated with the water outlet end of the mixed ion exchanger;
the backflow check valve is arranged at the water outlet end of the water storage tank.
5. A water filtration device as claimed in claim 4 wherein: the backflow branch also comprises a carbon rod filter element; the carbon rod filter element is communicated between the mixed ion exchanger and the water storage tank.
6. A water filtration device as claimed in claim 1 wherein: still include the water intaking check valve, the water intaking check valve set up in between water outlet end and the water intaking device.
7. A water filtration device as claimed in claim 6 wherein: the device also comprises a water inlet valve and a high-pressure switch;
the water inlet valve is arranged between the primary filtering water outlet and the supercharging device;
the high-voltage switch is positioned between the water taking check valve and the water taking device; the high-pressure switch is electrically connected with the supercharging device and the water inlet valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121419452.5U CN215516940U (en) | 2021-06-24 | 2021-06-24 | Water quality filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121419452.5U CN215516940U (en) | 2021-06-24 | 2021-06-24 | Water quality filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215516940U true CN215516940U (en) | 2022-01-14 |
Family
ID=79810146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121419452.5U Active CN215516940U (en) | 2021-06-24 | 2021-06-24 | Water quality filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215516940U (en) |
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2021
- 2021-06-24 CN CN202121419452.5U patent/CN215516940U/en active Active
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