CN218281283U - Reverse osmosis membrane filter element - Google Patents
Reverse osmosis membrane filter element Download PDFInfo
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- CN218281283U CN218281283U CN202222459934.4U CN202222459934U CN218281283U CN 218281283 U CN218281283 U CN 218281283U CN 202222459934 U CN202222459934 U CN 202222459934U CN 218281283 U CN218281283 U CN 218281283U
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- osmosis membrane
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Abstract
A reverse osmosis membrane filter element is characterized by comprising a shell, a central tube, a reverse osmosis membrane, a one-way valve and an air bag, wherein the shell is provided with a water inlet port, a waste water port and a water purification port; the central tube is axially arranged in the inner cylinder, the central tube is provided with a hollow water purifying cavity, the side wall of the central tube is provided with a water through hole, one end of the central tube is close to the water inlet port and forms a plugging end, and the other end of the central tube forms a purified water outlet and is communicated with the purified water port. Through setting up the gasbag setting in the water storage chamber, can realize that waste water is whole to be changed into the pure water, simple structure easily realizes.
Description
Technical Field
The utility model relates to a filter core especially relates to a reverse osmosis membrane filter core.
Background
After the RO reverse osmosis filter element is used for a period of time, water in tap water and impurities such as inorganic salt, heavy metal ions, organic matters, colloid, bacteria, viruses and the like are deposited on the outer side of the RO osmotic membrane, pure water filtered by the RO osmotic membrane is positioned on the inner side of the RO osmotic membrane, and when the water purifier is in a standby state for a long time, ions of impurity substances in the tap water and the waste water on the outer side of the RO osmotic membrane can be gradually diffused into the pure water on the inner side of the RO osmotic membrane, so that the TDS value of the pure water remained in the RO reverse osmosis filter element is increased; when the pure water output is started again, the TDS value in the effluent of the front section is higher, and the body health of a user is seriously influenced. And the pollutants accumulated on the surface of the membrane can cause the service life of the membrane element to be greatly reduced.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a reverse osmosis membrane filter element which can replace the concentrated water in the filter element into the purified water aiming at the technical current situation.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a reverse osmosis membrane filter element is characterized by comprising
The shell is provided with a water inlet port, a waste water port and a purified water port, the shell comprises an inner barrel and an outer barrel positioned on the periphery of the inner barrel, a water storage cavity is formed between the outer wall of the inner barrel and the inner wall of the outer barrel, and the purified water port is communicated with the water storage cavity and is provided with a flushing port between the purified water port and the inner cavity of the inner barrel;
the central pipe is axially arranged in the inner cylinder, is provided with a hollow water purifying cavity, has a water through hole on the side wall, has one end close to the water inlet port and forms a plugging end, and has the other end forming a purified water outlet and communicated with the purified water port;
the reverse osmosis membrane is arranged around the central pipe and is positioned in the inner cylinder, one end of the reverse osmosis membrane close to the water inlet port forms a water inlet end, the outer side face of the reverse osmosis membrane forms a wastewater end, and the inner side face of the reverse osmosis membrane close to the central pipe forms a water purification end; a wastewater gap is formed between the outer wall of the reverse osmosis membrane and the inner wall of the inner cylinder and is communicated with a wastewater port;
the one-way valve is arranged in the flushing port and can enable the purified water to reversely flow into the waste water gap; and
the air bag is provided with the water storage cavity.
Preferably, the bottom of the inner cylinder is provided with a base, the waste water port, the water purification port and the flushing port are formed on the base, the bottom of the outer cylinder is in sealing fit with the base, and one end cover is arranged on the upper port of the inner cylinder and is in sealing fit with the outer cylinder.
Further, a water stop ring is sleeved on the periphery of the reverse osmosis membrane close to the water inlet port.
Preferably, the number of the air bags is multiple, and the air bags are arranged in the water storage cavity in a surrounding manner.
Compared with the prior art, the utility model has the advantages of: through setting up the gasbag setting in the water storage chamber, can realize that waste water is whole to be changed into the pure water, simple structure easily realizes. Thus, even if the system does not operate for a long time, the surface of the reverse osmosis membrane is still clean and free of pollutants, and therefore, the service life is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is an enlarged perspective sectional view of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, 2 and 3, the reverse osmosis membrane cartridge in this embodiment includes a housing 10, a center tube 3, a reverse osmosis membrane 4, a check valve 6 and an air bag 5.
The shell 10 is provided with a water inlet port 14, a waste water port 16 and a water purification port 15, the shell 10 comprises an inner barrel 11 and an outer barrel 12 positioned on the periphery of the inner barrel 11, a water storage cavity 1a is formed between the outer wall of the inner barrel 11 and the inner wall of the outer barrel 12, and the water purification port 15 is communicated with the water storage cavity 1a and is provided with a flushing port with the inner cavity of the inner barrel 11.
A central tube 3 is axially arranged in the inner barrel 11, the central tube 3 having a hollow purified water chamber and a water through hole 31 in the side wall, one end being close to the water inlet port 14 and forming a plugging end, and the other end forming a purified water outlet and communicating with the purified water port 15.
The reverse osmosis membrane 4 is arranged around the central tube 3 and is positioned in the inner barrel 11, one end of the reverse osmosis membrane 4 close to the water inlet port 14 forms a water inlet end, the outer side face of the reverse osmosis membrane 4 forms a wastewater end, and the inner side face of the reverse osmosis membrane 4 close to the central tube 3 forms a water purification end; a waste water gap 4a is formed between the outer wall of the reverse osmosis membrane 4 and the inner wall of the inner barrel 11, and the waste water gap 4a is communicated with a waste water port 16; the periphery of the reverse osmosis membrane 4 is sleeved with a water stop ring 41 close to the water inlet port 14.
The one-way valve 6 is arranged in the flushing port, and can enable the purified water to reversely flow into the waste water gap 4 a. The air bag 5 is arranged in the water storage cavity 1 a. The air bag 5 in this embodiment is provided in plurality, and the plurality of air bags 5 are arranged in the water storage chamber 1a in a tubular shape.
The bottom of the inner barrel 11 in this embodiment has a base 111, the waste water port 16, the clean water port 15 and the flushing port are formed on the base 111, the bottom of the outer barrel 12 is in sealing fit with the base 111, and the end cover 13 is arranged on the upper port of the inner barrel 11 and is in sealing fit with the outer barrel 12.
Raw water enters the inner barrel from the water inlet port, passes through the reverse osmosis membrane 4, and then enters the central tube after being filtered, and is divided into two parts, wherein one part finally flows out from the water purifying port, and the other part enters the water storage cavity; after the waste water is converged to the waste water clearance, the waste water flows out from the waste water port.
The pure water entering the water storage cavity can extrude the closed air bag, and the water storage cavity can store certain pure water after the air bag is extruded; the check valve can prevent waste water can run into the water storage chamber during operation, and rivers in the water storage chamber can not appear in the shell during normal system water.
When stopping system water, because the waste water port is normally open, water inlet port and water purification port are all closed, and at this moment confined gasbag will extrude the pure water from the water storage chamber, extrude the pure water to the waste water clearance through the check valve in, just in time replace the pure water with the waste water in the shell is whole.
The opening and closing of each port can be realized by adopting an electromagnetic valve.
Claims (4)
1. A reverse osmosis membrane filter element is characterized by comprising
The shell (10) is provided with a water inlet port (14), a waste water port (16) and a water purification port (15), the shell (10) comprises an inner barrel (11) and an outer barrel (12) positioned on the periphery of the inner barrel (11), a water storage cavity (1 a) is formed between the outer wall of the inner barrel (11) and the inner wall of the outer barrel (12), and a flushing port is arranged between the water purification port (15) and the water storage cavity (1 a) and the inner cavity of the inner barrel (11);
the central tube (3) is axially arranged in the inner tube (11), the central tube (3) is provided with a hollow purified water cavity, the side wall of the central tube is provided with a water through hole (31), one end of the central tube is close to the water inlet port (14) and forms a plugging end, and the other end of the central tube forms a purified water outlet and is communicated with the purified water port (15);
the reverse osmosis membrane (4) is arranged around the central pipe (3) and is positioned in the inner cylinder (11), one end, close to the water inlet port (14), of the reverse osmosis membrane (4) forms a water inlet end, the outer side face of the reverse osmosis membrane (4) forms a waste water end, and the inner side face of the reverse osmosis membrane (4) forms a water purifying end, close to the central pipe (3); a waste water gap (4 a) is formed between the outer wall of the reverse osmosis membrane (4) and the inner wall of the inner cylinder (11), and the waste water gap (4 a) is communicated with a waste water port (16);
a one-way valve (6) arranged in the flushing port and capable of enabling the purified water to reversely flow into the waste water gap (4 a); and
an air bag (5) provided in the water storage chamber (1 a).
2. A reverse osmosis membrane cartridge according to claim 1 wherein the base (111) is provided at the bottom of the inner cartridge (11), the waste water port (16), the clean water port (15) and the flush water port are formed in the base (111), the bottom of the outer cartridge (12) is sealingly engaged with the base (111), and an end cap (13) is provided at the upper end of the inner cartridge (11) and sealingly engaged with the outer cartridge (12).
3. The reverse osmosis membrane cartridge of claim 1, wherein the reverse osmosis membrane (4) is sheathed with a water stop (41) at its periphery adjacent the water inlet port (14).
4. A reverse osmosis membrane cartridge according to claim 1, wherein the number of the air bags (5) is plural, and the plural air bags (5) are arranged in the water storage chamber (1 a) in a surrounding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222459934.4U CN218281283U (en) | 2022-09-13 | 2022-09-13 | Reverse osmosis membrane filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222459934.4U CN218281283U (en) | 2022-09-13 | 2022-09-13 | Reverse osmosis membrane filter element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218281283U true CN218281283U (en) | 2023-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222459934.4U Active CN218281283U (en) | 2022-09-13 | 2022-09-13 | Reverse osmosis membrane filter element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218281283U (en) |
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2022
- 2022-09-13 CN CN202222459934.4U patent/CN218281283U/en active Active
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