CN111875000A - Reverse osmosis filter core and water purifier - Google Patents
Reverse osmosis filter core and water purifier Download PDFInfo
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- CN111875000A CN111875000A CN202010834785.8A CN202010834785A CN111875000A CN 111875000 A CN111875000 A CN 111875000A CN 202010834785 A CN202010834785 A CN 202010834785A CN 111875000 A CN111875000 A CN 111875000A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/004—Seals, connections
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
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 assembly is provided with a mounting cavity, and a raw water inlet, a concentrated water discharge port and a pure water outlet which are respectively communicated with the mounting cavity; the reverse osmosis membrane assembly is arranged in the mounting cavity and used for performing osmosis 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, and the pure water area is communicated with the pure water outlet; the reverse osmosis membrane component is characterized in that the peripheral wall of the reverse osmosis membrane component and the inner wall of the shell component 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. The invention improves the structure of the reverse osmosis filter element, realizes the back washing 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 that a Y-shaped sealing ring is arranged outside an RO membrane to separate raw water from waste water, namely, one end of the RO membrane is used for water inlet, the other end is used for waste water, and a central tube is used for discharging pure water; the other method is to glue and seal the upper end and the lower end, a ring of holes are reserved on the upper end cover to discharge waste water, the water enters the side face and is flushed, the lower end cover is sealed, and pure water is discharged from the central pipe.
However, the RO membrane is arranged in the filter element or the membrane shell, the water inlet and the waste water in the filter element system are far larger than the pure water, after the whole machine is shut down, the water inlet electromagnetic valve is closed, the RO filter element forms a closed space, the waste water in the membrane belt in the filter element and the waste water at the inner wall of the filter element and the waste water at the waste water end of the RO membrane can be mixed and diluted with the raw water in the filter element, so that the TDS at the water inlet end in the whole filter element is very high and the water is more, when the machine is restarted, the water inlet electromagnetic valve is opened, the water with the high TDS value stored in the filter element can be firstly filtered under the action of pressure, because the TDS value of the inlet water is increased, the TDS value of the pure water which is naturally restarted is high, and.
Therefore, how to reduce the TDS value of the first cup of water to enable the user to drink the first cup of water directly becomes an urgent problem to be solved.
Disclosure of Invention
The invention mainly aims to provide a reverse osmosis filter element, aiming at reducing the TDS value of primary water so that a user can directly drink the primary water.
In order to achieve the above object, the present invention provides a reverse osmosis filter cartridge, comprising:
the shell assembly is provided with a mounting cavity, and a raw water inlet, a concentrated water discharge port and a pure water outlet which are respectively communicated with the mounting cavity; and
the reverse osmosis membrane assembly is arranged in the mounting cavity and used for performing osmosis 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 discharge port, and the pure water area is communicated with the pure water outlet;
the reverse osmosis membrane module comprises a shell assembly, a pure water area, a pure water channel, a pressure maintaining water storage chamber, a pressure maintaining component and a water inlet pipe, wherein the shell assembly is arranged in the shell assembly, the pure water channel is communicated with the pressure maintaining water storage chamber, and the pressure maintaining component is arranged in the pressure maintaining water storage chamber.
In one embodiment, the pressure retention member is a sealed air bag having air, nitrogen or an inert gas stored therein.
In one embodiment, the sealed air bag has a ring-shaped structure or a strip-shaped structure.
In one embodiment, the reverse osmosis membrane assembly comprises a reverse osmosis membrane element, a first end cover assembly and a second end cover assembly respectively covering two ends of the reverse osmosis membrane element, and a sealing pressure-bearing piece, wherein the reverse osmosis membrane element is arranged in the installation cavity, the sealing pressure-bearing piece is hermetically arranged on the reverse osmosis membrane element and hermetically connects the first end cover assembly and the second end cover assembly, and the reverse osmosis membrane element is provided with the filtering area and the pure water area;
the pressure-maintaining water storage chamber is formed by enclosing the peripheral wall of the sealing pressure-bearing part, the inner wall of the shell component, the first end cover component and the second end cover component.
In one embodiment, a communication hole is formed in the second end cap assembly 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 member is a mixture of glass fiber and glue; alternatively, the first and second electrodes may be,
the sealing pressure-bearing part is a plastic sleeve; alternatively, the first and second electrodes may be,
the sealing pressure-bearing part is a metal cylinder.
In one embodiment, the sealing pressure-bearing piece and the first end cover assembly/the second end cover assembly are of split structures; alternatively, the first and second electrodes may be,
the sealing pressure-bearing piece and the first end cover assembly/the second end cover assembly are of an integrally formed structure.
In an embodiment, the housing assembly includes a bottle body and a bottle cap, the bottle body has a bottle mouth, the bottle cap is covered on the bottle mouth, and the bottle cap is provided with the raw water inlet, the concentrated water 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 separating cover is covered on one end of the reverse osmosis membrane element opposite to the bottle mouth, and is provided with a water inlet hole communicated with the filtering area and the raw water inlet, a liquid discharging hole communicated with the filtering area and the concentrated water discharging port and a through hole for a central pipe of the reverse osmosis membrane element to pass through; the sealing cover is hermetically sleeved on the outer wall of the liquid separating cover and is abutted against the inner wall of the bottle cover; the pure water cover is arranged on the liquid separation cover and is provided with a containing hole for containing a central pipe of the reverse osmosis membrane element, and the containing hole is communicated with a pure water channel of the pure water area and the pure water outlet;
the second end cover component comprises a bottom cover, and the bottom cover is arranged on one end, back to the bottle mouth, of the reverse osmosis membrane element.
In order to achieve the above object, the present invention further provides a water purifier having a reverse osmosis water purification system, the reverse osmosis water purification system including a water inlet pipeline, a pure water pipeline, a concentrated water pipeline, and a reverse osmosis filter element as described above, the reverse osmosis filter element including:
the shell assembly is provided with a mounting cavity, and a raw water inlet, a concentrated water discharge port and a pure water outlet which are respectively communicated with the mounting cavity; and
the reverse osmosis membrane assembly is arranged in the mounting cavity and used for performing osmosis 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 discharge port, and the pure water area is communicated with the pure water outlet;
the periphery wall of the reverse osmosis membrane component and the inner wall of the shell component enclose 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;
the water inlet pipeline is communicated with the raw water inlet, the concentrated water pipeline is communicated with the concentrated water discharge port, and the pure water pipeline is communicated with the pure water outlet.
In the technical scheme of the invention, the reverse osmosis filter element comprises a shell assembly and a reverse osmosis membrane assembly, wherein the shell assembly is provided with an installation cavity, a raw water inlet, a concentrated water discharge port and a pure water outlet which are respectively communicated with the installation cavity; when the reverse osmosis filter element is in a starting state, raw water is pressurized under the action of the water inlet electromagnetic valve and flows into a filtering area in the reverse osmosis membrane component from the raw water inlet 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 along the 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 a balanced state; when the reverse osmosis filter element is in a shutdown state, the raw water inlet is closed, the pure water outlet is closed, the concentrated water discharge port is opened, the water pressure in the reverse osmosis membrane component slowly drops, the compressed pressure maintaining piece is reset to the initial state, the pure water in the pressure maintaining water storage chamber is driven to flow into the filtering area in the reverse osmosis membrane component through the pure water channel in the pure water area, and the concentrated water in the reverse osmosis membrane component is discharged through the concentrated water discharge port, so that the 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.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a reverse osmosis filter element of the present invention;
FIG. 2 is an exploded view of one embodiment of a reverse osmosis filter element of the present invention;
FIG. 3 is a diagram of the operating state of the reverse osmosis filter element of the present invention;
fig. 4 is a state diagram of the reverse osmosis filter element of the invention in a shutdown state.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 100 | |
100a | |
|
| 200 | Reverse |
100b | Concentrated |
|
| 101 | |
100c | |
|
| 210 | Reverse |
| Filtration zone | |
| 220 | First |
200b | |
|
| 230 | Second |
100d | Pressure-maintaining |
|
| 240 | Sealing pressure-bearing |
110 | |
|
| | Communicating hole | 120 | |
|
| 221 | |
223 | |
|
| 222 | |
231 | Bottom cover |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In some exemplary technologies, a Reverse Osmosis (RO) filter element has two structures, one is that a Y-shaped sealing ring is arranged outside an RO membrane to separate raw water from waste water, that is, one end of the RO membrane is used for water inlet, the other end is used for waste water, and a central pipe is used for pure water outlet; the other method is to glue and seal the upper end and the lower end, a ring of holes are reserved on the upper end cover to discharge waste water, the water enters the side face and is flushed, the lower end cover is sealed, and pure water is discharged from the central pipe.
However, the RO membrane is arranged in the filter element or the membrane shell, the water inlet and the waste water in the filter element system are far larger than the pure water, after the whole machine is shut down, the water inlet electromagnetic valve is closed, the RO filter element forms a closed space, the waste water in the membrane belt in the filter element and the waste water at the inner wall of the filter element and the waste water at the waste water end of the RO membrane can be mixed and diluted with the raw water in the filter element, so that the TDS at the water inlet end in the whole filter element is very high and the water is more, when the machine is restarted, the water inlet electromagnetic valve is opened, the water with the high TDS value stored in the filter element can be firstly filtered under the action of pressure, because the TDS value of the inlet water is increased, the TDS value of the pure water which is naturally restarted is high, and.
In order to reduce the TDS value of the first cup of water and enable a user to drink the first cup of water directly, the invention provides a reverse osmosis filter element which is suitable for various water purifiers and is not limited in the position.
Referring to fig. 1 to 4, in an embodiment of the present invention, the reverse osmosis filter cartridge includes a housing assembly 100 and a reverse osmosis membrane assembly 200; the shell assembly 100 is provided with a mounting cavity, and a raw water inlet 100a, a concentrated water discharge port 100b and a pure water outlet 100c which are respectively communicated with the mounting cavity; the reverse osmosis membrane module 200 is installed in the installation cavity and used for performing osmosis filtration treatment on raw water (tap water) to generate concentrated water and pure water, the reverse osmosis membrane module 200 is provided with a filtering area 200a and a pure water area 200b, the filtering area 200a is respectively communicated with a raw water inlet 100a and a concentrated water discharge port 100b, and the pure water area 200b is communicated with a pure water outlet 100 c; the peripheral wall of the reverse osmosis membrane component 200 and the inner wall of the shell component 100 enclose 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 piece 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 include a bottle body 110 and a bottle cap 120, the bottle body 110 has a bottle opening, the bottle cap 120 covers the bottle opening, the bottle cap 120 may have a plurality of taps to form a raw water inlet 100a, a concentrated water outlet 100b and a pure water outlet 100c, the taps corresponding to the raw water inlet 100a may have electromagnetic valves, and a booster pump may pump raw water into the reverse osmosis filter element.
In the present embodiment, the pressure retaining member 101 is a device having a certain pressure retaining function, and may be a sealed air bag filled with air, nitrogen gas, inert gas, or the like, and the shape of the sealed air bag may be a strip-like or ring-like structure, and here, the specific configuration and shape of the pressure retaining member 101 are not limited.
During assembly, the reverse osmosis membrane module 200 may be installed in the installation cavity of the housing assembly 100 by a sealing member such as a sealing ring or sealant. Here, it should be emphasized that the pressure-maintaining water storage chamber 100d communicates only with the pure water passage of the pure water section 200b, and other positions are sealed.
It can be understood that, in the present invention, the housing assembly 100 of the reverse osmosis filter element forms an installation cavity, and a raw water inlet 100a, a concentrated water discharge port 100b and a pure water outlet 100c which are respectively communicated with the installation cavity, the reverse osmosis membrane assembly 200 is installed in the installation cavity and is used for performing an osmosis filtration treatment on raw water to generate concentrated water and pure water, the reverse osmosis membrane assembly 200 is provided with a filtering area 200a and a pure water area 200b, the filtering area 200a is respectively communicated with the raw water inlet 100a and the concentrated water discharge port 100b, a pure water channel of the pure water area 200b is communicated with the pure water outlet 100c, wherein a pressure maintaining chamber 100d is formed by enclosing a peripheral wall of the reverse osmosis membrane assembly 200 and an inner wall of the housing assembly 100, the pure water channel of the pure water area 200b is communicated with the pressure maintaining chamber 100d, and a pressure maintaining element 101 is arranged.
Referring to fig. 3, when the reverse osmosis filter element is in a start-up state, raw water is pressurized by the water inlet solenoid valve and flows into the filtering area 200a in the reverse osmosis membrane module 200 through the raw water channel from the raw water inlet 100a to perform osmotic filtration, so as 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 pressure, and the pressure-maintaining member 101 is continuously compressed until a balanced state is achieved.
Referring to fig. 4, when the reverse osmosis filter element is in a shutdown state, the raw water inlet 100a is closed, the pure water outlet 100c is closed, the concentrated water discharge port 100b is opened, the water pressure in the reverse osmosis membrane module 200 slowly drops, and the compressed pressure maintaining member 101 is reset to an initial state, so that 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 discharge concentrated water in the reverse osmosis membrane module 200 through the concentrated water discharge port 100b, thereby realizing a back flushing function, reducing a TDS value of first cup of water, and enabling a user to directly drink a first cup of water.
Referring to fig. 2 to 4, in order to form a closed pressure-maintaining water storage chamber 100d to improve the back-flushing effect of the reverse osmosis filter element, in an embodiment, a reverse osmosis membrane module 200 includes a reverse osmosis membrane element 210, a first end cap assembly 220 and a second end cap assembly 230 respectively covering both ends of the reverse osmosis membrane element 210, and a sealing pressure-bearing member 240, the reverse osmosis membrane element 210 is installed in an installation cavity, the sealing pressure-bearing member 240 is hermetically disposed on the reverse osmosis membrane element 210 and hermetically connects the first end cap assembly 220 and the second end cap assembly 230, and the reverse osmosis membrane element 210 is formed with a filtering region 200a and a pure water region 200 b. The pressure-retaining water storage chamber 100d is formed by the surrounding wall of the sealing pressure-bearing member 240, the inner wall of the housing assembly 100, the first end cap assembly 220 and the second end cap assembly 230. The reverse osmosis membrane element 210 includes a center pipe in which a pure water passage of the pure water zone 200b is formed, and a reverse osmosis membrane stack wound around the center pipe.
In this embodiment, referring to fig. 3 and 4, a communication hole 230a is formed in the second end cap assembly 230 at a position corresponding to the pure water passage of the pure water section 200b of the reverse osmosis membrane element 210 to communicate the pure water passage of the pure water section 200b with the pressure-maintaining water storage chamber 100 d.
In the present embodiment, the number of the communication holes 230a may be one or more, and herein, the shape and 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; alternatively, the sealing pressure-bearing member 240 may be a plastic sleeve; alternatively, the sealing pressure-bearing member 240 may be a metal cylinder.
Further, the sealing pressure-bearing member 240 and the first end cap assembly 220 or the second end cap assembly 230 are separate structures; alternatively, the sealing pressure member 240 and the first or second end cap assembly 220 or 230 are formed as an integral structure.
When assembled, the sealing pressure-bearing member 240 may be formed by mixing glass fiber and glue and winding them together at a position to be sealed; the seal pressure bearing member 240 may be a single plastic part that is spun onto the first and second end cap assemblies 220 and 230; the sealing pressure-bearing member 240 may be a single plastic part or a stainless steel cylinder, which is connected and sealed with the first end cap assembly 220 and the second end cap assembly 230 by a sealing ring, and may be prevented from being deactivated by the upper and lower spaces of the filter element; the sealing pressure-bearing member 240 may be a single plastic part or a stainless steel cylinder screwed to the first and second end cap assemblies 220 and 230 and having a sealing ring sealing connection; the sealing pressure-bearing member 240 may also be a plastic part or a metal workpiece integrated with the second end cap assembly 230 and connected to the first end cap assembly 220 by spin welding, screwing, or sealing ring; the seal holder 240 may be a plastic part or a metal part integrated with the first end cap assembly 220 and connected to the second end cap assembly 230 by spin welding, screwing, or sealing, etc.
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 outlet hole for communicating the filtering area 200a with the concentrated water outlet 100b and a through hole for the central pipe of the reverse osmosis membrane element 210 to pass through; the sealing cover 221 is hermetically arranged 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 covered on the liquid separating cover 222 and is provided with a containing hole for containing the central tube of the reverse osmosis membrane element 210, and the containing hole is communicated with the pure water channel of the pure water area 200b and the pure water outlet 100 c. The second end cap assembly 230 includes a bottom cap 231, and the bottom cap 231 covers an end of the reverse osmosis membrane element 210 opposite to the opening. 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 the back flush function has been realized.
The invention also provides a water purifier, which is provided with a reverse osmosis water purification system, wherein the reverse osmosis water purification 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 the schemes of all the embodiments of the reverse osmosis filter element, so that the water purifier at least has the same technical effects as the reverse osmosis filter element, and the technical effects are not explained in detail herein.
In an embodiment of the present invention, the reverse osmosis water purification system of the water purifier includes a water inlet pipeline, a pure water pipeline, a concentrated water pipeline, and the reverse osmosis filter element as described above, the reverse osmosis filter element includes a housing assembly 100 and a reverse osmosis membrane assembly 200; the shell assembly 100 is provided with a mounting cavity, and a raw water inlet 100a, a concentrated water discharge port 100b and a pure water outlet 100c which are respectively communicated with the mounting cavity; the reverse osmosis membrane module 200 is installed in the installation cavity and used for performing osmosis filtration treatment on raw water to generate concentrated water and pure water, the reverse osmosis membrane module 200 is provided with a filtering area 200a and a pure water area 200b, the filtering area 200a is respectively communicated with the raw water inlet 100a and the concentrated water discharge port 100b, and the pure water area 200b is communicated with the pure water outlet 100 c; wherein, the peripheral wall of the reverse osmosis membrane component 200 and the inner wall of the shell component 100 enclose 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 piece 101 is arranged in the pressure maintaining water storage chamber 100 d; the water inlet pipeline is communicated with a raw water inlet 100a, the concentrated water pipeline is communicated with a concentrated water discharge outlet 100b, and the pure water pipeline is communicated with a pure water outlet 100 c.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A reverse osmosis filter cartridge, comprising:
the shell assembly is provided with a mounting cavity, and a raw water inlet, a concentrated water discharge port and a pure water outlet which are respectively communicated with the mounting cavity; and
the reverse osmosis membrane assembly is arranged in the mounting cavity and used for performing osmosis 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 discharge port, and the pure water area is communicated with the pure water outlet;
the reverse osmosis membrane module comprises a shell assembly, a pure water area, a pure water channel, a pressure maintaining water storage chamber, a pressure maintaining component and a water inlet pipe, wherein the shell assembly is arranged in the shell assembly, the pure water channel is communicated with the pressure maintaining water storage chamber, and the pressure maintaining component is arranged in the pressure maintaining water storage chamber.
2. The reverse osmosis filter cartridge of claim 1, wherein the pressure retention element is a sealed air pocket having air, nitrogen, or an inert gas stored therein.
3. The reverse osmosis filter cartridge of claim 2, wherein the sealing pockets are in a ring-like configuration or a strip-like configuration.
4. The reverse osmosis filter cartridge of claim 1, wherein the reverse osmosis membrane module comprises a reverse osmosis membrane element, first and second end cap assemblies respectively covering both ends of the reverse osmosis membrane element, and a sealing pressure-receiving member, the reverse osmosis membrane element being installed in the installation chamber, the sealing pressure-receiving member being sealingly installed on the reverse osmosis membrane element and sealingly connecting the first end cap assembly and the second end cap assembly, the reverse osmosis membrane element being formed with the filtration zone and the pure water zone;
the pressure-maintaining water storage chamber is formed by enclosing the peripheral wall of the sealing pressure-bearing part, the inner wall of the shell component, the first end cover component and the second end cover component.
5. The reverse osmosis filter element of claim 4, wherein the second end cap assembly is provided with a communication hole 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.
6. The reverse osmosis filter cartridge of claim 4, wherein the seal pressure bearing member is a mixture of fiberglass and glue; alternatively, the first and second electrodes may be,
the sealing pressure-bearing part is a plastic sleeve; alternatively, the first and second electrodes may be,
the sealing pressure-bearing part is a metal cylinder.
7. The reverse osmosis filter cartridge of claim 4, wherein the seal pressure bearing member and the first/second end cap assembly are of a split construction; alternatively, the first and second electrodes may be,
the sealing pressure-bearing piece and the first end cover assembly/the second end cover assembly are of an integrally formed 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 opening, the bottle cap is covered on the bottle opening, and the bottle cap is provided with the raw water inlet, the concentrated water outlet and the pure water outlet.
9. The reverse osmosis filter cartridge of claim 8, wherein the first end cap assembly comprises a sealing cap, a liquid separation cap, and a pure water cap; the liquid separating cover is covered on one end of the reverse osmosis membrane element opposite to the bottle mouth, and is provided with a water inlet hole communicated with the filtering area and the raw water inlet, a liquid discharging hole communicated with the filtering area and the concentrated water discharging port and a through hole for a central pipe of the reverse osmosis membrane element to pass through; the sealing cover is hermetically sleeved on the outer wall of the liquid separating cover and is abutted against the inner wall of the bottle cover; the pure water cover is arranged on the liquid separation cover and is provided with a containing hole for containing a central pipe of the reverse osmosis membrane element, and the containing hole is communicated with a pure water channel of the pure water area and the pure water outlet;
the second end cover component comprises a bottom cover, and the bottom cover is arranged on one end, back to the bottle mouth, of the reverse osmosis membrane element.
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 line, a pure water line, a concentrate line, and a reverse osmosis filter element according to 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 discharge port, and the pure water pipeline is communicated with the pure water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010834785.8A CN111875000A (en) | 2020-08-18 | 2020-08-18 | Reverse osmosis filter core and water purifier |
Applications Claiming Priority (1)
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| CN202010834785.8A CN111875000A (en) | 2020-08-18 | 2020-08-18 | Reverse osmosis filter core and water purifier |
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