CN111875000B - Reverse osmosis filter element and water purifier - Google Patents
Reverse osmosis filter element and water purifier Download PDFInfo
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- CN111875000B CN111875000B CN202010834785.8A CN202010834785A CN111875000B CN 111875000 B CN111875000 B CN 111875000B CN 202010834785 A CN202010834785 A CN 202010834785A CN 111875000 B CN111875000 B CN 111875000B
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- reverse osmosis
- water
- pure water
- osmosis membrane
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 323
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 132
- 239000012528 membrane Substances 0.000 claims abstract description 92
- 238000001914 filtration Methods 0.000 claims abstract description 39
- 238000009434 installation Methods 0.000 claims abstract description 24
- 230000003204 osmotic effect Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 42
- 239000007788 liquid Substances 0.000 claims description 21
- 239000003570 air Substances 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 239000011152 fibreglass Substances 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 abstract description 4
- 239000002351 wastewater Substances 0.000 description 14
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000035622 drinking Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The invention discloses a reverse osmosis filter element and a water purifier, wherein the reverse osmosis filter element comprises a shell component and a reverse osmosis membrane component; the shell component is provided with an installation cavity, a raw water inlet, a concentrated water drain port and a pure water outlet which are respectively communicated with the installation cavity; the reverse osmosis membrane component is arranged in the installation cavity and used for performing osmotic filtration treatment on raw water to generate concentrated water and pure water, the reverse osmosis membrane component is provided with a filtration area and a pure water area, the filtration area is respectively communicated with the raw water inlet and the concentrated water drain outlet, and the pure water area is communicated with the pure water outlet; wherein, the circumferential wall of the reverse osmosis membrane component and the inner wall of the shell component are enclosed to form a pressure-keeping water storage chamber, the pure water channel of the pure water area is communicated with a pressure-maintaining water storage chamber, and a pressure-maintaining part is arranged in the pressure-maintaining water storage chamber. The invention improves the structure of the reverse osmosis filter element, realizes the back flushing function, and solves the problem of high TDS value of the first cup of water so that a user can directly drink the first cup of water.
Description
Technical Field
The invention relates to the technical field of reverse osmosis filter elements, in particular to a reverse osmosis filter element and a water purifier.
Background
The existing Reverse Osmosis filter element (RO) has two structures, one is an RO membrane which is externally provided with a Y-shaped sealing ring for separating raw water and waste water, namely one end of the RO membrane is water inlet, the other end of the RO membrane is waste water, and pure water is discharged from a central tube; and the other is that the upper end and the lower end are glued and sealed, a circle of holes are reserved on the upper end cover to discharge wastewater, the water is fed into the side surface of the water inlet punch, the lower end cover is sealed, and the central tube is discharged with pure water.
However, the RO membrane is arranged in the filter element or the membrane shell, the ratio of the water inlet and the wastewater in the filter element system is far greater than that of pure water, after the whole machine is stopped, the water inlet electromagnetic valve is closed, the RO filter element forms a closed space, the wastewater in the membrane belt in the filter element, the inner wall of the filter element and the wastewater at the wastewater end of the RO membrane can be mixed and diluted with the raw water in the filter element, so that the water inlet end TDS in the whole filter element is very high, the water is more, when the machine is restarted, the water inlet electromagnetic valve is opened, under the action of pressure, the water with the high TDS value in the filter element can be filtered first, and the TDS value of the pure water which is naturally restarted is high, so that the drinking of the water is generally not recommended.
Therefore, how to reduce the TDS value of the first cup water to allow the user to drink the first cup water directly is a problem to be solved.
Disclosure of Invention
The invention mainly aims to provide a reverse osmosis filter element which aims to reduce the TDS value of first-cup water so that a user can directly drink the first-cup water.
To achieve the above object, the present invention provides a reverse osmosis cartridge comprising:
the shell component is provided with an installation cavity, a raw water inlet, a concentrated water drain port and a pure water outlet, wherein the raw water inlet, the concentrated water drain port and the pure water outlet are respectively communicated with the installation cavity; and
The reverse osmosis membrane component is arranged in the installation cavity and used for performing osmotic filtration treatment on raw water to generate concentrated water and pure water, the reverse osmosis membrane component is provided with a filtration area and a pure water area, the filtration area is respectively communicated with the raw water inlet and the concentrated water drain outlet, and the pure water area is communicated with the pure water outlet;
The water purifying device comprises a shell assembly, a reverse osmosis membrane assembly, a pure water channel and a pressure maintaining water storage chamber, wherein the periphery wall of the reverse osmosis membrane assembly and the inner wall of the shell assembly enclose to form the pressure maintaining water storage chamber, the pure water channel of the pure water area is communicated with the pressure maintaining water storage chamber, and the pressure maintaining water storage chamber is internally provided with a pressure maintaining piece.
In an embodiment, the pressure maintaining member is a sealed air bag, and air, nitrogen or inert gas is stored in the sealed air bag.
In one embodiment, the sealed airbag is in a ring-shaped structure or a strip-shaped structure.
In an embodiment, the reverse osmosis membrane module comprises a reverse osmosis membrane element, a first end cover module, a second end cover module and a sealing pressure-bearing piece, wherein the first end cover module, the second end cover module and the sealing pressure-bearing piece are respectively arranged at two ends of the reverse osmosis membrane element, the reverse osmosis membrane element is arranged in the installation cavity, the sealing pressure-bearing piece is arranged on the reverse osmosis membrane element in a sealing manner and is used for sealing connection between the first end cover module and the second end cover module, and the reverse osmosis membrane element is provided with the filtering area and the pure water area;
The sealing pressure bearing piece comprises a sealing pressure bearing piece, a shell assembly, a first end cover assembly and a second end cover assembly, wherein the sealing pressure bearing piece is arranged on the periphery of the sealing pressure bearing piece, the inner wall of the shell assembly, and the first end cover assembly and the second end cover assembly enclose to form the pressure-retaining water storage chamber.
In an embodiment, a communicating hole is arranged on the second end cover component at a position corresponding to the pure water area of the reverse osmosis membrane element so as to communicate the pure water channel of the pure water area with the pressure-maintaining water storage chamber.
In one embodiment, the sealing pressure bearing piece is a mixture of glass fiber and glue; or alternatively
The sealing pressure bearing piece is a plastic sleeve; or alternatively
The sealing pressure bearing piece is a metal cylinder.
In an embodiment, the seal pressure bearing piece and the first end cover assembly/the second end cover assembly are all in a split structure; or alternatively
The seal pressure bearing piece and the first end cover component/the second end cover component are of an integrated structure.
In an embodiment, the shell assembly comprises a bottle body and a bottle cap, the bottle body is provided with a bottle opening, the bottle cap is arranged on the bottle opening, and the bottle cap is provided with the raw water inlet, the concentrated water drain outlet and the pure water outlet.
In one embodiment, the first end cap assembly comprises a sealing cap, a liquid separating cap and a pure water cap; the liquid separation cover is covered on one end of the reverse osmosis membrane element, which is opposite to the bottle mouth, and is provided with a water inlet hole for communicating the filtering area with the raw water inlet, a liquid discharge hole for communicating the filtering area with the concentrated water liquid discharge hole and a through hole for the central tube of the reverse osmosis membrane element to pass through; the sealing cover is sleeved on the outer wall of the liquid separating cover and is abutted against the inner wall of the bottle cap; the pure water cover is covered on the liquid separation cover and is provided with an accommodating hole for accommodating the central tube of the reverse osmosis membrane element, and the accommodating hole is communicated with the pure water channel of the pure water area and the pure water outlet;
the second end cover assembly comprises a bottom cover, and the bottom cover is arranged on one end of the reverse osmosis membrane element, which is opposite to the bottle mouth.
In order to achieve the above object, the present invention also provides a water purifier having a reverse osmosis water purification system including a water inlet pipe, a pure water pipe, a concentrate pipe, and a reverse osmosis cartridge as described above, the reverse osmosis cartridge comprising:
the shell component is provided with an installation cavity, a raw water inlet, a concentrated water drain port and a pure water outlet, wherein the raw water inlet, the concentrated water drain port and the pure water outlet are respectively communicated with the installation cavity; and
The reverse osmosis membrane component is arranged in the installation cavity and used for performing osmotic filtration treatment on raw water to generate concentrated water and pure water, the reverse osmosis membrane component is provided with a filtration area and a pure water area, the filtration area is respectively communicated with the raw water inlet and the concentrated water drain outlet, and the pure water area is communicated with the pure water outlet;
The water purifying device comprises a shell, a reverse osmosis membrane assembly, a pure water channel, a pressure maintaining water storage chamber, a water inlet and a water outlet, wherein the periphery of the reverse osmosis membrane assembly and the inner wall of the shell are enclosed to form the pressure maintaining water storage chamber;
the water inlet pipeline is communicated with the raw water inlet, the concentrated water pipeline is communicated with the concentrated water drain outlet, and the pure water pipeline is communicated with the pure water outlet.
In the technical proposal of the invention, the reverse osmosis filter element comprises a shell component and a reverse osmosis membrane component, wherein the shell component is provided with an installation cavity, a raw water inlet, a concentrated water drain outlet and a pure water outlet which are respectively communicated with the installation cavity, the reverse osmosis membrane component is arranged in the installation cavity and is used for carrying out osmotic filtration treatment on raw water to generate concentrated water and pure water, the reverse osmosis membrane assembly is provided with a filtering area and a pure water area, the filtering area is respectively communicated with the raw water inlet and the concentrated water outlet, the pure water area is communicated with the pure water outlet, wherein the peripheral wall of the reverse osmosis membrane assembly and the inner wall of the shell assembly are enclosed to form a pressure-maintaining water storage chamber, a pure water channel of the pure water area is communicated with the pressure-maintaining water storage chamber, and a pressure-maintaining part is arranged in the pressure-maintaining water storage chamber; when the reverse osmosis filter element is in a starting state, raw water is pressurized under the action of a water inlet electromagnetic valve and flows into a filtering area in the reverse osmosis membrane assembly from a raw water inlet through a raw water channel for osmotic filtration so as to generate concentrated water and pure water, the pure water flows into a pressure-maintaining water storage chamber along a pure water channel of the pure water area under the action of pressure, and the pressure-maintaining piece is continuously compressed until the pressure-maintaining piece is in an equilibrium state; when the reverse osmosis filter element is in a stop state, the raw water inlet is closed, the pure water outlet is closed, the concentrated water drain port is opened, the water pressure in the reverse osmosis membrane assembly slowly drops, the compressed pressure maintaining piece is driven to return to an initial state, pure water in the pressure maintaining water storage chamber flows into the filtering area in the reverse osmosis membrane assembly through the pure water channel of the pure water area and is discharged through the concentrated water drain port in the reverse osmosis membrane assembly, a back flushing function is realized, the TDS value of first cup of water is reduced, and a user can directly drink the first cup of water.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a reverse osmosis cartridge of the present invention;
FIG. 2 is an exploded view of one embodiment of a reverse osmosis cartridge of the present invention;
FIG. 3 is a diagram showing the working state of the reverse osmosis filter element of the invention;
FIG. 4 is a shutdown state diagram of the reverse osmosis filter cartridge of the present invention.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Housing assembly | 100a | Raw water inlet |
| 200 | Reverse osmosis membrane assembly | 100b | Concentrated water drain |
| 101 | Pressure-retaining piece | 100c | Pure water outlet |
| 210 | Reverse osmosis membrane element | 200a | Filtration zone |
| 220 | First end cap assembly | 200b | Pure water area |
| 230 | Second end cap assembly | 100d | Water storage chamber with pressure keeping function |
| 240 | Sealing pressure-bearing piece | 110 | Bottle body |
| 230a | Communication hole | 120 | Bottle cap |
| 221 | Sealing cover | 223 | Pure water cover |
| 222 | Liquid separating cover | 231 | Bottom cover |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B meet at the same time. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
In some exemplary technologies, a Reverse Osmosis filter element (RO) has two structures, one is to provide a Y-shaped sealing ring outside the RO membrane to separate raw water from waste water, i.e. one end of the RO membrane is water inlet, the other end is waste water, and pure water is discharged from a central tube; and the other is that the upper end and the lower end are glued and sealed, a circle of holes are reserved on the upper end cover to discharge wastewater, the water is fed into the side surface of the water inlet punch, the lower end cover is sealed, and the central tube is discharged with pure water.
However, the RO membrane is arranged in the filter element or the membrane shell, the ratio of the water inlet and the wastewater in the filter element system is far greater than that of pure water, after the whole machine is stopped, the water inlet electromagnetic valve is closed, the RO filter element forms a closed space, the wastewater in the membrane belt in the filter element, the inner wall of the filter element and the wastewater at the wastewater end of the RO membrane can be mixed and diluted with the raw water in the filter element, so that the water inlet end TDS in the whole filter element is very high, the water is more, when the machine is restarted, the water inlet electromagnetic valve is opened, under the action of pressure, the water with the high TDS value in the filter element can be filtered first, and the TDS value of the pure water which is naturally restarted is high, so that the drinking of the water is generally not recommended.
In order to reduce the TDS value of the first cup of water so that a user can directly drink the first cup of water, the invention provides a reverse osmosis filter element which is applicable to various water purifiers, and the reverse osmosis filter element is not limited in the invention.
Referring to fig. 1 to 4, in an embodiment of the present invention, the reverse osmosis cartridge includes a housing assembly 100 and a reverse osmosis membrane assembly 200; the housing assembly 100 is formed with a mounting chamber, a raw water inlet 100a, a concentrated water drain port 100b and a pure water outlet 100c which are respectively communicated with the mounting chamber; the reverse osmosis membrane assembly 200 is installed in the installation cavity and is used for performing osmotic filtration treatment on raw water (tap water) to generate concentrated water and pure water, the reverse osmosis membrane assembly 200 is provided with a filtration area 200a and a pure water area 200b, the filtration area 200a is respectively communicated with the raw water inlet 100a and the concentrated water outlet 100b, and the pure water area 200b is communicated with the pure water outlet 100c; wherein, the peripheral wall of the reverse osmosis membrane assembly 200 and the inner wall of the shell assembly 100 are enclosed to form a pressure-maintaining water storage chamber 100d, a pure water channel of the pure water area 200b is communicated with the pressure-maintaining water storage chamber 100d, and a pressure-maintaining part 101 is arranged in the pressure-maintaining water storage chamber 100 d.
In this embodiment, the housing assembly 100 of the reverse osmosis filter element may be composed of a bottle 110 and a bottle cap 120, the bottle 110 is provided with a bottle mouth, the bottle cap 120 is covered on the bottle mouth, a plurality of taps may be provided on the bottle cap 120 to form a raw water inlet 100a, a concentrated water outlet 100b and a pure water outlet 100c, an electromagnetic valve may be provided at the tap corresponding to the raw water inlet 100a, and a booster pump may be provided to pump raw water into the reverse osmosis filter element.
In the present embodiment, the pressure maintaining member 101 is a device having a certain pressure maintaining function, and may be a sealed air bag filled with air, nitrogen, inert gas, or the like, and the shape of the sealed air bag may be a strip-like or ring-like structure, and the specific configuration and shape of the pressure maintaining member 101 are not limited.
In the production and assembly, the reverse osmosis membrane module 200 may be installed in the installation cavity of the housing module 100 by a seal such as a gasket or sealant. Here, it should be emphasized that the pressure-maintaining water storage chamber 100d is only in communication with the pure water passage of the pure water region 200b, and the other positions are closed structures.
It can be understood that the invention forms the installation cavity by the shell component 100 of the reverse osmosis filter element, and the raw water inlet 100a, the concentrated water drain port 100b and the pure water outlet 100c which are respectively communicated with the installation cavity, the reverse osmosis membrane component 200 is installed in the installation cavity and is used for performing osmotic filtration treatment on raw water to generate concentrated water and pure water, the reverse osmosis membrane component 200 is provided with a filtration area 200a and a pure water area 200b, the filtration area 200a is respectively communicated with the raw water inlet 100a and the concentrated water drain port 100b, the pure water channel of the pure water area 200b is communicated with the pure water outlet 100c, wherein the pressure-maintaining water storage chamber 100d is formed by enclosing the peripheral wall of the reverse osmosis membrane component 200 with the inner wall of the shell component 100, the pure water channel of the pure water area 200b is communicated with the pressure-maintaining water storage chamber 100d, and the pressure-maintaining water storage chamber 100d is internally provided with the pressure-maintaining piece 101, thereby realizing the back flushing function.
Referring to fig. 3, when the reverse osmosis filter element is in a start-up state, raw water is pressurized under the action of the water inlet solenoid valve and flows into the filtering area 200a in the reverse osmosis membrane assembly 200 from the raw water inlet 100a through the raw water channel for osmotic filtration to generate concentrated water and pure water, the pure water flows into the pressure maintaining water storage chamber 100d along the pure water channel of the pure water area 200b under the action of pressure, and the pressure maintaining part 101 is continuously compressed until the pressure maintaining water storage chamber is in an equilibrium state.
Referring to fig. 4, when the reverse osmosis filter element is in a stop state, the raw water inlet 100a is closed, the pure water outlet 100c is closed, the concentrated water drain port 100b is opened, the water pressure in the reverse osmosis membrane module 200 slowly decreases, the compressed pressure maintaining member 101 is reset to an initial state, pure water in the pressure maintaining water storage chamber 100d is driven to flow into the filtering area 200a in the reverse osmosis membrane module 200 through the pure water channel of the pure water area 200b, and the concentrated water in the reverse osmosis membrane module 200 is drained through the concentrated water drain port 100b, so that a back flushing function is realized, the TDS value of the first cup of water is reduced, and a user can directly drink the first cup of water.
Referring to fig. 2 to 4, in order to form a closed pressure-maintaining water storage chamber 100d to enhance the backwashing effect of the reverse osmosis cartridge, in one embodiment, the reverse osmosis membrane module 200 includes a reverse osmosis membrane module 210, a first end cap module 220 and a second end cap module 230 respectively provided on both ends of the reverse osmosis membrane module 210, and a sealing pressure-bearing member 240, the reverse osmosis membrane module 210 is installed in the installation cavity, and the sealing pressure-bearing member 240 is sealingly disposed on the reverse osmosis membrane module 210 and sealingly connects the first end cap module 220 with the second end cap module 230, and the reverse osmosis membrane module 210 is formed with a filtration zone 200a and a pure water zone 200b. Wherein, the sealing pressure-bearing member 240 has a peripheral wall, an inner wall of the housing assembly 100, the first end cap assembly 220 and the second end cap assembly 230 enclosing to form a pressure-maintaining water storage chamber 100d. The reverse osmosis membrane element 210 includes a central tube in which a pure water passage of the pure water region 200b is formed, and a reverse osmosis membrane sheet set wound around the central tube.
In this embodiment, referring to fig. 3 and 4, a communication hole 230a is provided at a position of the second end cap assembly 230 corresponding to the pure water channel of the pure water region 200b of the reverse osmosis membrane element 210 to communicate the pure water channel of the pure water region 200b with the pressure maintaining water storage chamber 100d.
In the present embodiment, the number of the communication holes 230a may be one or more, and here, the shape and the number thereof are not limited.
It should be noted that the sealing pressure bearing member 240 may be a mixture of glass fiber and glue; or the seal pressure bearing 240 may be a plastic sleeve; or the seal retainer 240 may be a metal cylinder.
Further, the seal pressure bearing member 240 and the first end cap assembly 220 or the second end cap assembly 230 are all of separate structures; or the seal retainer 240 is an integral structure with either the first end cap assembly 220 or the second end cap assembly 230.
When in assembly, the sealing pressure bearing piece 240 can be formed by mixing glass fiber and glue together and winding the mixture at a position to be sealed; the seal pressure bearing 240 may be a single plastic part that is spun onto the first end cap assembly 220 and the second end cap assembly 230; the sealing pressure-bearing member 240 may be a single plastic part or a stainless steel cylinder, and is connected and sealed with the first end cover assembly 220 and the second end cover assembly 230 through a sealing ring, and can be prevented from being disabled by up-and-down movement by means of up-and-down space of the filter element; the seal pressure bearing 240 may be a single plastic part or a stainless steel cylinder screwed to the first end cap assembly 220 and the second end cap assembly 230 and having a sealing ring seal connection; the sealing pressure-bearing member 240 may be a plastic part or a metal workpiece integrated with the second end cover assembly 230, and is connected with the first end cover assembly 220 by means of spin welding, screwing or sealing ring; the seal retainer 240 may also be a plastic part or metal part that is integral with the first end cap assembly 220, and may be attached to the second end cap assembly 230 by spin welding, screwing, or sealing, among others.
Referring to fig. 2 to 4, in the present embodiment, the first end cap assembly 220 includes a sealing cap 221, a liquid separating cap 222, and a pure water cap 223; the liquid separating cover 222 is covered on one end of the reverse osmosis membrane element 210 opposite to the bottle mouth, and the liquid separating cover 222 is provided with a water inlet hole for communicating the filtering area 200a with the raw water inlet 100a, a liquid discharge hole for communicating the filtering area 200a with the concentrated water liquid discharge port 100b and a through hole for passing through a central pipe of the reverse osmosis membrane element 210; the sealing cover 221 is sealed and sleeved on the outer wall of the liquid separating cover 222 and is abutted against the inner wall of the bottle cap 120; the pure water cover 223 is provided on the liquid separating cover 222 and provided with a receiving hole for receiving the central tube of the reverse osmosis membrane element 210, and the receiving hole communicates the pure water channel of the pure water region 200b with the pure water outlet 100c. The second end cap assembly 230 includes a bottom cap 231, and the bottom cap 231 is covered on one end of the reverse osmosis membrane element 210 opposite to the bottle mouth. So set up, be convenient for this reverse osmosis filter core separation raw water, dense water and pure water, in this embodiment, divide liquid lid 222 can be used to separate raw water and dense water, and pure water lid 223 can be used to separate dense water and pure water, has realized better infiltration filter effect to realized back flush function.
The invention also provides a water purifier, which is provided with a reverse osmosis water purifying system, the reverse osmosis water purifying system of the water purifier comprises a reverse osmosis filter element, the specific structure of the reverse osmosis filter element refers to the embodiment, and the water purifier provided by the invention comprises all schemes of all the embodiments of the reverse osmosis filter element, so that the water purifier has at least the same technical effects as the reverse osmosis filter element, and the technical effects are not described herein.
In an embodiment of the invention, the reverse osmosis water purification system of the water purifier comprises a water inlet pipeline, a pure water pipeline, a concentrated water pipeline and a reverse osmosis filter element as described above, wherein the reverse osmosis filter element comprises a shell assembly 100 and a reverse osmosis membrane assembly 200; the housing assembly 100 is formed with a mounting chamber, a raw water inlet 100a, a concentrated water drain port 100b and a pure water outlet 100c which are respectively communicated with the mounting chamber; the reverse osmosis membrane assembly 200 is installed in the installation cavity and is used for performing osmotic filtration treatment on raw water to generate concentrated water and pure water, the reverse osmosis membrane assembly 200 is provided with a filtration area 200a and a pure water area 200b, the filtration area 200a is respectively communicated with the raw water inlet 100a and the concentrated water outlet 100b, and the pure water area 200b is communicated with the pure water outlet 100c; wherein, the peripheral wall of the reverse osmosis membrane assembly 200 and the inner wall of the shell assembly 100 are enclosed to form a pressure-maintaining water storage chamber 100d, a pure water channel of the pure water area 200b is communicated with the pressure-maintaining water storage chamber 100d, and a pressure-maintaining part 101 is arranged in the pressure-maintaining water storage chamber 100 d; the water inlet pipeline is communicated with the raw water inlet 100a, the concentrated water pipeline is communicated with the concentrated water outlet 100b, and the pure water pipeline is communicated with the pure water outlet 100 c.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. A reverse osmosis cartridge, the reverse osmosis cartridge comprising:
the shell component is provided with an installation cavity, a raw water inlet, a concentrated water drain port and a pure water outlet, wherein the raw water inlet, the concentrated water drain port and the pure water outlet are respectively communicated with the installation cavity; and
The reverse osmosis membrane component is arranged in the installation cavity and used for performing osmotic filtration treatment on raw water to generate concentrated water and pure water, the reverse osmosis membrane component comprises a reverse osmosis membrane element, the reverse osmosis membrane element comprises a central pipe of a pure water channel formed with a pure water zone, and the pure water zone is communicated with the pure water outlet;
the reverse osmosis membrane component is provided with a filtering area which is respectively communicated with the raw water inlet and the concentrated water drain outlet;
The water purifying device comprises a shell assembly, a reverse osmosis membrane assembly, a pure water channel and a pressure maintaining water storage chamber, wherein the periphery wall of the reverse osmosis membrane assembly and the inner wall of the shell assembly enclose to form the pressure maintaining water storage chamber, the pure water channel of the pure water area is communicated with the pressure maintaining water storage chamber, and the pressure maintaining water storage chamber is internally provided with a pressure maintaining piece.
2. The reverse osmosis filter cartridge of claim 1, wherein the pressure maintaining member is a sealed air bag, and air, nitrogen or inert gas is stored in the sealed air bag.
3. The reverse osmosis cartridge of claim 2, wherein the sealed air bag is in a ring-like or bar-like configuration.
4. The reverse osmosis filter cartridge of claim 1, wherein the reverse osmosis membrane module comprises a first end cap module, a second end cap module and a sealing pressure-bearing member which are respectively covered at two ends of the reverse osmosis membrane module, the reverse osmosis membrane module is installed in the installation cavity, the sealing pressure-bearing member is arranged on the reverse osmosis membrane module in a sealing way and is used for connecting the first end cap module with the second end cap module in a sealing way, and the reverse osmosis membrane module is provided with the filtration area and the pure water area;
The sealing pressure bearing piece comprises a sealing pressure bearing piece, a shell assembly, a first end cover assembly and a second end cover assembly, wherein the sealing pressure bearing piece is arranged on the periphery of the sealing pressure bearing piece, the inner wall of the shell assembly, and the first end cover assembly and the second end cover assembly enclose to form the pressure-retaining water storage chamber.
5. The reverse osmosis filter cartridge according to claim 4, wherein a communication hole is provided at a position of the second end cap assembly corresponding to the pure water region of the reverse osmosis membrane element so as to communicate the pure water channel of the pure water region with the pressure-maintaining water storage chamber.
6. The reverse osmosis filter cartridge of claim 4, wherein the seal carrier is a mixture of fiberglass and glue; or alternatively
The sealing pressure bearing piece is a plastic sleeve; or alternatively
The sealing pressure bearing piece is a metal cylinder.
7. The reverse osmosis filter cartridge of claim 4, wherein the seal follower and the first end cap assembly/the second end cap assembly are each of a split construction; or alternatively
The seal pressure bearing piece and the first end cover component/the second end cover component are of an integrated structure.
8. The reverse osmosis filter cartridge of claim 4, wherein the housing assembly comprises a bottle body and a bottle cap, the bottle body is provided with a bottle mouth, the bottle cap is arranged on the bottle mouth, and the bottle cap is provided with the raw water inlet, the concentrated water drain port and the pure water outlet.
9. The reverse osmosis filter cartridge of claim 8, wherein the first end cap assembly comprises a seal cap, a liquid separation cap, and a pure water cap; the liquid separation cover is covered on one end of the reverse osmosis membrane element, which is opposite to the bottle mouth, and is provided with a water inlet hole for communicating the filtering area with the raw water inlet, a liquid discharge hole for communicating the filtering area with the concentrated water liquid discharge hole and a through hole for the central tube of the reverse osmosis membrane element to pass through; the sealing cover is sleeved on the outer wall of the liquid separating cover and is abutted against the inner wall of the bottle cap; the pure water cover is covered on the liquid separation cover and is provided with an accommodating hole for accommodating the central tube of the reverse osmosis membrane element, and the accommodating hole is communicated with the pure water channel of the pure water area and the pure water outlet;
the second end cover assembly comprises a bottom cover, and the bottom cover is arranged on one end of the reverse osmosis membrane element, which is opposite to the bottle mouth.
10. A water purifier having a reverse osmosis water purification system, wherein the reverse osmosis water purification system of the water purifier comprises a water inlet pipe, a pure water pipe, a concentrate pipe, and a reverse osmosis cartridge according to any one of claims 1 to 9; the water inlet pipeline is communicated with the raw water inlet, the concentrated water pipeline is communicated with the concentrated water drain outlet, and the pure water pipeline is communicated with the pure water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010834785.8A CN111875000B (en) | 2020-08-18 | Reverse osmosis filter element and water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010834785.8A CN111875000B (en) | 2020-08-18 | Reverse osmosis filter element and water purifier |
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| Publication Number | Publication Date |
|---|---|
| CN111875000A CN111875000A (en) | 2020-11-03 |
| CN111875000B true CN111875000B (en) | 2024-09-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212246335U (en) * | 2020-08-18 | 2020-12-29 | 佛山市麦克罗美的滤芯设备制造有限公司 | Reverse osmosis filter core and water purifier |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212246335U (en) * | 2020-08-18 | 2020-12-29 | 佛山市麦克罗美的滤芯设备制造有限公司 | Reverse osmosis filter core and water purifier |
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