CN213569639U - RO filter core and purifier of degradable head cup water TDS value - Google Patents
RO filter core and purifier of degradable head cup water TDS value Download PDFInfo
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- CN213569639U CN213569639U CN202022469326.2U CN202022469326U CN213569639U CN 213569639 U CN213569639 U CN 213569639U CN 202022469326 U CN202022469326 U CN 202022469326U CN 213569639 U CN213569639 U CN 213569639U
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Abstract
The utility model discloses a RO filter element and a water purifier capable of reducing TDS value of cup water, wherein the RO filter element comprises a filter flask, a filter flask cover and an RO membrane, the RO membrane is arranged in the filter flask, and the filter flask is fixedly connected with the filter flask cover; the RO membrane is internally provided with a central tube, a piston is arranged in the central tube, the piston can move up and down along the inner wall of the central tube, a water through hole is arranged on the circumference of the lower part of the central tube and is positioned below the piston, and a sealing cavity is arranged above the piston. The utility model discloses utilize the piston to increase the water storage capacity of the interior pure water of center tube, rethread pressure difference for the pure water of storing in the center tube replaces the concentrate in the waste water channel, reduces the TDS value of RO membrane concentrate one side.
Description
Technical Field
The utility model belongs to the technical field of water purification unit, in particular to can reduce RO filter core and purifier of head cup water TDS value.
Background
The flow passage of the RO cartridge is generally of the following construction: raw water enters from one end of the filter element, the raw water is filtered from outside to inside, the filtered pure water flows out through the central tube, and the filtered concentrated water is arranged on the outer side of the central tube. The concentrated water on the concentrated water side of the RO filter element contains high-concentration ions which can be slowly diffused to the pure water side, and if the time is long enough, the concentrations on the two sides can reach the balance. If the pure water is diffused overnight, the TDS value of the pure water in the pure water side is obviously increased, and if heavy metal ions in the raw water are more, the heavy metals in the pure water also exceed the standard, so that the water quality and the taste are greatly influenced.
When the water purifier works, the TDS at the pure water end is in a normal state. When the purifier stood still, the ions on the wastewater side of the RO filter element could permeate the pure water side, so that the total dissolved solid TDS of the pure water rises. When the water purifier is started again, the TDS value of the purified water coming out at the earlier stage is higher, so that the problem of head cup water of the water purifier is formed.
Disclosure of Invention
The utility model aims at providing a can solve RO filter core and purifier of head cup water TDS value problem on the high side.
Therefore, the utility model discloses a first technical scheme is: an RO filter element capable of reducing TDS value of head cup water comprises a filter flask, a filter flask cover and an RO membrane, wherein the RO membrane is arranged in the filter flask, and the filter flask is fixedly connected with the filter flask cover; the inside center tube that is equipped with of RO membrane, its characterized in that: the piston is arranged in the central tube and can move up and down along the inner wall of the central tube, the circumference of the lower part of the central tube is provided with a water through hole which is positioned below the piston, and a sealing cavity is arranged above the piston.
Preferably, the whole central tube is of a hollow cylindrical structure, the upper end of the central tube is a closed end, the lower end of the central tube is provided with a water outlet column, and the water through hole is positioned above the water outlet column; the piston is used as a boundary, a sealing cavity is formed above the piston and the upper end of the central tube, and a pure water channel is arranged below the piston.
Preferably, the filter flask cover is provided with a water inlet, a pure water port and a wastewater port, a water inlet channel is arranged between the RO membrane and the inner wall of the filter flask and communicated with the water inlet, and the pure water channel in the central tube is communicated with the pure water port; and a membrane core end cover is arranged below the RO membrane, and a wastewater channel is arranged between the membrane core end cover and the central tube and is communicated with the wastewater port.
The second technical proposal of the utility model is that: a purifier capable of reducing TDS value of head cup water comprises the RO filter element.
Preferably, the RO filter further comprises a raw water inlet, a water inlet electromagnetic valve and a booster pump, wherein the raw water inlet is connected to the water inlet of the RO filter element through the water inlet electromagnetic valve and the booster pump, the pure water port of the RO filter element is connected to the water outlet faucet through a check valve and a high-pressure switch, and the waste water port of the RO filter element is connected to the waste discharge port through a flushing valve.
Preferably, a water self-sealing assembly is respectively arranged in the water inlet, the pure water inlet and the waste water inlet of the RO filter element.
When the water outlet faucet is opened, the water inlet electromagnetic valve and the booster pump are opened, and raw water enters the RO membrane from the water inlet; pure water enters the central tube through a water hole at the lower end of the central tube and then flows out of the water outlet faucet through the pure water port, the check valve and the high-pressure switch; the concentrated water generated by the RO membrane flows out from the waste discharge port after passing through the waste water channel, the waste water port and the flushing valve.
After the water outlet faucet is closed, water is continuously produced for a certain time, the water inlet electromagnetic valve and the booster pump are continuously opened, pure water filtered by the RO membrane enters the central tube, the piston moves towards the direction far away from the pure water port under the condition that the pressure of the pure water is continuously increased, the pure water channel below the piston is gradually increased, the volume of the sealing cavity above the piston is gradually reduced, air in the sealing cavity is compressed, the air pressure is gradually increased, and the pure water is stored in the pure water channel below the piston; the concentrated water flows out from the waste discharge port after passing through the waste water channel, the waste water port and the flushing valve.
After the water tap is closed, the water inlet electromagnetic valve and the booster pump are started for a period of time and then stopped, and water production is stopped. The pressure in the central tube sealing cavity and the central tube pure water channel is far larger than the pressure at the wastewater outlet of the RO filter element, and the pure water enters the wastewater channel through the water passing hole of the central tube and the RO membrane to replace the concentrated water at one side of the concentrated water of the RO membrane, so that the concentrated water flows out from the wastewater outlet after passing through the wastewater channel, the wastewater outlet and the flushing valve.
The utility model discloses utilize the piston to increase the water storage capacity of the interior pure water of center tube, rethread pressure difference for the unnecessary pure water of storing in the center tube reversely sees through the RO membrane, gets into waste water channel, thereby replaces the concentrate in the waste water channel, reduces the TDS value of RO membrane concentrate one side, alleviates "head cup water" TDS high problem that the concentrate one side of RO membrane caused to pure water one side salt diffusion when shutting down and stewing.
Drawings
The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention
FIG. 1 is a cross-sectional view of a RO cartridge;
FIG. 2 is a structural cross-sectional view of a RO membrane;
FIG. 3 is a flow diagram of the internal water path of the filter element when the water outlet faucet is opened;
FIG. 4 is a water path flow diagram inside the filter element when the water tap is closed and water production is continued;
fig. 5 is a flow diagram of the water path inside the filter element when water production is stopped.
Labeled as: the device comprises a raw water inlet 1, a preposed filter element 2, a water inlet electromagnetic valve 3, a booster pump 4, an RO filter element 5, a filter flask 51, a filter flask cover 52, an inner protective wall 521, an outer protective wall 522, an RO membrane 53, a central tube 54, a water outlet column 55, a water through hole 56, a piston 57, a sealed cavity 58, a pure water channel 59, a membrane core end cover 60, a water inlet 61, a pure water port 62, a waste water port 63, a water inlet channel 64, a waste water channel 65, a check valve 7, a high-pressure switch 8, a water outlet tap 9, a flushing valve 10, a waste water outlet 11 and a self-sealing water assembly 12.
Detailed Description
See the drawings. The embodiment purifier, including raw water inlet 1, leading filter core 2, inlet solenoid valve 3, booster pump 4 and RO filter core 5, raw water inlet 1 connects leading filter core 2, leading filter core 2 is connected to the water inlet 61 of RO filter core 5 through inlet solenoid valve 3 and booster pump 4, the pure water mouth 62 of RO filter core is connected to outlet tap 9 through check valve 7, high-pressure switch 8, the waste water mouth 63 of RO filter core is connected to waste discharge port 11 through flush valve 10.
The RO filter element 5 comprises a filter flask 51, a filter flask cover 52 and an RO membrane 53, the RO membrane 53 is arranged in the filter flask 51, the filter flask 51 is fixedly connected with the filter flask cover 52, a central tube 54 is arranged in the RO membrane 53, the central tube 54 is integrally of a hollow cylindrical structure, the upper end is a closed end, the lower end is provided with a water outlet column 55, and the circumference of the lower part of the central tube is provided with a water through hole 56; a piston 57 is arranged in the central tube 54, the piston 57 can move up and down along the inner wall of the central tube, the piston is used as a boundary, a sealing cavity 58 is formed above the piston and the upper end of the central tube, a pure water channel 59 is arranged in a cavity below the piston, and the water through hole 56 is arranged below the piston 57.
Be equipped with water inlet 61, pure water mouth 62 and waste water mouth 63 on the filter flask lid 52, respectively be equipped with one in water inlet, pure water mouth and the waste water mouth and seal water subassembly 12 from, seal water subassembly and include the spring and from sealing, can cut off the inlet outlet of RO filter core, be convenient for change the RO filter core. The inward side of the filter bottle cap 52 is provided with two rings of annular protecting walls, an inner protecting wall 521 and an outer protecting wall 522; a water inlet channel 64 is arranged between the RO membrane and the inner wall of the filter flask, and the water inlet channel 64 is communicated with the water inlet 61 through the outer side of the outer protective wall; the pure water channel 59 in the central tube is communicated with the pure water port 62 through the water outlet column and the inner side of the inner protective wall; a membrane core end cover 60 is arranged below the RO membrane, a wastewater channel 65 is arranged between the membrane core end cover 60 and the water outlet column 55 of the central tube, and the wastewater channel is communicated with a wastewater port 63 through a gap between the inner and outer retaining walls.
When the water outlet faucet is opened, the water inlet electromagnetic valve 3 and the booster pump 4 are opened, raw water enters the RO filter element 5 from the water inlet and the outer side of the outer protective wall after passing through the preposed filter element 2, the water inlet electromagnetic valve 3 and the booster pump 4, and flows to the upper end surface of the RO membrane through the water inlet channel 64; the pure water filtered by the RO membrane enters the central tube 54 through the water through hole 56 at the lower end of the central tube, and then flows out from the water outlet tap 9 through the water outlet column 55, the inner side of the inner protective wall, the pure water port 62, the check valve 7 and the high-pressure switch 8; the concentrated water flows out from the waste discharge port 11 after passing through the waste water channel, the gap between the inner and outer protective walls, the waste water port and the flushing valve 10.
After the water outlet faucet is closed, water is continuously produced for a certain time, the water inlet electromagnetic valve and the booster pump are continuously opened, pure water filtered by the RO membrane enters the central pipe 54, the piston 57 moves towards the direction far away from the pure water port 62 under the condition that the pressure of the pure water is continuously increased, the pure water channel 59 below the piston is gradually enlarged, the volume of the sealing cavity 58 above the piston is gradually reduced, air in the sealing cavity is compressed, the air pressure is gradually increased, and the pure water is stored in the pure water channel below the piston; the concentrated water flows out from the waste discharge port after passing through the waste water channel, the waste water port and the flushing valve.
After the water tap is closed, the water inlet electromagnetic valve and the booster pump are started for a period of time and then stopped, and water production is stopped. The pressure in the central tube sealing cavity 58 and the central tube pure water channel 59 is far larger than the pressure at the RO filter element waste water port 63, and pure water enters the waste water channel through the water passing hole of the central tube and the RO membrane to replace concentrated water at one side of concentrated water of the RO membrane, so that the concentrated water flows out from the waste discharge port after passing through the waste water channel, the waste water port and the flushing valve.
Claims (6)
1. An RO filter element capable of reducing TDS value of head cup water comprises a filter flask, a filter flask cover and an RO membrane, wherein the RO membrane is arranged in the filter flask, and the filter flask is fixedly connected with the filter flask cover; the inside center tube that is equipped with of RO membrane, its characterized in that: the piston is arranged in the central tube and can move up and down along the inner wall of the central tube, the circumference of the lower part of the central tube is provided with a water through hole which is positioned below the piston, and a sealing cavity is arranged above the piston.
2. The RO filter cartridge capable of reducing TDS value of the head cup water according to claim 1, wherein: the whole central tube is of a hollow cylindrical structure, the upper end of the central tube is a closed end, the lower end of the central tube is provided with a water outlet column, and the water through hole is positioned above the water outlet column; the piston is used as a boundary, a sealing cavity is formed above the piston and the upper end of the central tube, and a pure water channel is arranged below the piston.
3. The RO filter cartridge capable of reducing TDS value of the head cup water according to claim 1, wherein: the filter flask cover is provided with a water inlet, a pure water port and a wastewater port, a water inlet channel is arranged between the RO membrane and the inner wall of the filter flask and is communicated with the water inlet, and the pure water channel in the central tube is communicated with the pure water port; and a membrane core end cover is arranged below the RO membrane, and a wastewater channel is arranged between the membrane core end cover and the central tube and is communicated with the wastewater port.
4. The utility model provides a can reduce purifier of head cup water TDS value which characterized in that: an RO cartridge comprising an RO cartridge according to any one of claims 1 to 3.
5. The water purifier of claim 4, wherein: still include raw water inlet, water inlet solenoid valve and booster pump, the raw water inlet is connected to the water inlet of RO filter core through water inlet solenoid valve and booster pump, and the pure water mouth of RO filter core is connected to out tap through check valve, high-pressure switch, and the waste water mouth of RO filter core is connected to the waste discharge mouth through the flushometer.
6. The water purifier of claim 4, wherein: and a water self-sealing assembly is respectively arranged in the water inlet, the pure water inlet and the waste water inlet of the RO filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022469326.2U CN213569639U (en) | 2020-10-30 | 2020-10-30 | RO filter core and purifier of degradable head cup water TDS value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022469326.2U CN213569639U (en) | 2020-10-30 | 2020-10-30 | RO filter core and purifier of degradable head cup water TDS value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213569639U true CN213569639U (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022469326.2U Active CN213569639U (en) | 2020-10-30 | 2020-10-30 | RO filter core and purifier of degradable head cup water TDS value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213569639U (en) |
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2020
- 2020-10-30 CN CN202022469326.2U patent/CN213569639U/en active Active
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