CN209974373U - Integrated filter element and filter system with same - Google Patents

Integrated filter element and filter system with same Download PDF

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Publication number
CN209974373U
CN209974373U CN201920322408.9U CN201920322408U CN209974373U CN 209974373 U CN209974373 U CN 209974373U CN 201920322408 U CN201920322408 U CN 201920322408U CN 209974373 U CN209974373 U CN 209974373U
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water
membrane unit
concentrated water
concentrated
pure water
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陈小平
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Guangdong Lizi Technology Co Ltd
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Foshan Viomi Electrical Technology Co Ltd
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Abstract

An integrated filter element and a filtering system with the filter element, wherein the integrated filter element is provided with a first membrane unit for preparing pure water, a second membrane unit for preparing the pure water and a central pipe assembly capable of flushing the first membrane unit. The utility model discloses an integrated form filter core has first membrane unit and the second membrane unit that can prepare the pure water when the operating condition, and first membrane unit and second membrane unit are rolled into a whole with central subassembly, can not additionally increase the device, simplify the outward appearance structure of integrated form filter core. This integrated form filter core is when washing the operating mode, and the second membrane unit can prepare the pure water alone to wash the inside remaining dense water of first membrane unit with these pure water, thereby alleviate "head cup water" problem that salt diffusion caused when shutting down to stew. The pure water prepared by the second membrane unit reversely washes the water inlet surface of the second membrane unit from the water production surface of the first membrane unit, and the washing effect of the directional washing mode is superior to that of the forward washing mode.

Description

Integrated filter element and filter system with same
Technical Field
The utility model relates to a water treatment field, in particular to integrated form filter core and have filtration system of this filter core.
Background
When the filter element is in a standing state, ions on the wastewater side permeate the pure water side, so that the total dissolved solid TDS of the pure water rises. When the system is restarted, the concentration of the pure water ions coming out at the earlier stage is higher, which causes the problem of the water purification machine, namely 'head cup water'.
In the prior art, one part of filter elements uses two membrane filter elements, and when the machine is stopped, pure water is generated through one membrane filter element to wash the other membrane filter element, so that the problem of head cup water is solved. However, this filter cartridge has the disadvantage of having two membranes, which results in a relatively large filter cartridge size. And a part of the filter element is provided with a water storage tank or a water storage bag, the water storage tank or the water storage bag is used for storing pure water, and the pure water is squeezed out from the water storage tank or the water storage bag for washing when the machine is stopped. This filter also adds a redundant unit, resulting in a larger filter size.
Therefore, it is necessary to provide an integrated filter element and a filtering system having the same to solve the deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model is to avoid the shortcomings of the prior art and provide an integrated filter element. The integrated filter element has the advantage of solving 'head cup water'.
The above object of the present invention is achieved by the following technical measures:
the utility model provides an integrated form filter core is provided with first membrane unit, second membrane unit and the center tube subassembly that is used for preparing the pure water and can washes first membrane unit, and first membrane unit and second membrane unit are rolled up with the center tube subassembly and are integrated into a whole, and the second membrane unit passes through center tube subassembly and first membrane unit intercommunication.
When the filter core runs, raw water enters the first membrane unit to be processed to obtain pure water A and concentrated water A, the concentrated water A enters the second membrane unit through the central tube assembly, the concentrated water A is processed by the second membrane unit to obtain pure water B and concentrated water B, the concentrated water B is directly discharged out of the integrated filter core, and the pure water A and the pure water B are discharged out of the integrated filter core through the central tube assembly.
When the filter core is flushed, raw water enters the second membrane unit through the central pipe assembly, the raw water is processed through the second membrane unit to obtain pure water C and concentrated water C, the concentrated water C is directly discharged out of the integrated filter core, and the pure water C is permeated into the first membrane unit and then discharged out of the integrated filter core.
Preferably, the central tube assembly is provided with a concentrated water/raw water central tube for delivering concentrated water generated by the first membrane unit and a pure water central tube for delivering pure water, the concentrated water/raw water central tubes are respectively communicated with the first membrane unit and the second membrane unit, and the pure water central tubes are respectively communicated with the first membrane unit and the second membrane unit.
Preferably, the concentrated water/raw water central tube is provided with two single-flow mechanisms, and the two single-flow mechanisms are respectively assembled at two ends of the concentrated water/raw water central tube.
The single-flow mechanism for allowing the concentrated water a to enter is defined as a first single-flow mechanism, and the single-flow mechanism for allowing the raw water to enter is defined as a second single-flow mechanism.
When the integrated filter core is operated, raw water enters the first membrane unit to be treated to obtain pure water A and concentrated water A, the concentrated water A enters the concentrated water/raw water central tube from the first single flow direction mechanism and cannot flow out of the concentrated water/raw water central tube through the second single flow direction mechanism, the concentrated water A then enters the second membrane unit, the concentrated water A is treated by the second membrane unit to obtain pure water B and concentrated water B, the concentrated water B directly discharges the integrated filter core, and the pure water A and the pure water B discharge the integrated filter core through the pure water central tube.
When the filter element is in a flushing working condition, raw water enters the concentrated water/raw water central tube from the second single flow direction mechanism and cannot flow out of the concentrated water/raw water central tube through the first single flow direction mechanism, then enters the second membrane unit, and is treated by the second membrane unit to obtain pure water C and concentrated water C, wherein the concentrated water C is directly discharged out of the integrated filter element, and the pure water C is discharged out of the integrated filter element after permeating into the first membrane unit.
Preferably, the first membrane unit is provided with a water inlet surface and a water outlet surface.
Preferably, above-mentioned first membrane unit is the reverse osmosis membrane of foling into double-deck rectangle structure, and the face of intaking is relative, and to the hem for rectangular minor face, will define as first wide A to the hem, will define as the wide A of second with the minor face that is relative to the hem, and two long limits adjacent with the hem are defined as first length A and the long A of second, and the wide A of second carries out sealing process along the face of intaking, and first length A is the raw water inlet, and the long A of second is first dense water outlet.
Preferably, the second membrane unit is provided with a water inlet surface and a water outlet surface.
Preferably, the second membrane unit is a reverse osmosis membrane folded into a double-layer rectangular structure, the water inlet surfaces of the reverse osmosis membrane are opposite, the opposite folding edges are rectangular short edges, the opposite folding edges are defined as a first wide B, the short edges opposite to the opposite folding edges are defined as a second wide B, two long edges adjacent to the opposite folding edges are defined as a first long B and a second long B, the concentrated water/raw water central pipe is connected to the water inlet surfaces in a seamless mode, the concentrated water/raw water central pipe is parallel to the first wide B, the first long B and the second long B are respectively subjected to sealing treatment along the water inlet surfaces, and the second wide B is a second concentrated water outlet.
Preferably, the first width a abuts against a pure water central pipe, and the pure water central pipe is not communicated with the water inlet surface of the first membrane unit and the water inlet surface of the second membrane unit.
When the first and second film elements are unfolded, the first length A and the first length B are on the same side, the second length A and the second length B are on the same side, the first width A and the first width B are on the same side, and the second width A and the second width B are on the same side.
The water producing surface of the first membrane unit is provided with a first sealing device along the second width A, the first length A and the second length A, and the sealing devices are respectively in sealing connection with the corresponding positions of the first membrane unit or the second membrane unit adjacent to the water inlet film to form a first pure water cavity structure taking the first width A as an outlet.
And the water producing surface of the second membrane unit is provided with a second sealing device along the second width B, the first length B and the second length B, and the sealing devices are respectively in sealing connection with the corresponding positions of the first membrane unit or the second membrane unit adjacent to the water inlet film to form a second pure water cavity structure taking the first width B as an outlet.
When the integrated filter core is in an operating working condition, raw water enters the first membrane unit from the raw water inlet, the raw water is processed by the first membrane unit to obtain pure water A and concentrated water A, the concentrated water A flows out of the first concentrated water outlet and turns, the concentrated water A then enters the concentrated water/raw water central tube from the first single flow direction mechanism, the concentrated water A cannot flow out of the concentrated water/raw water central tube through the second single flow direction mechanism, the concentrated water A then enters the second membrane unit, the concentrated water A is processed by the second membrane unit to obtain pure water B and concentrated water B, the concentrated water B directly discharges out of the integrated filter core through the second concentrated water outlet, and the pure water A and the pure water B discharge out of the integrated filter core through the pure water central tube.
When the integrated filter element is flushed, raw water enters the concentrated water/raw water central tube from the second single flow direction mechanism and cannot flow out of the concentrated water/raw water central tube through the first single flow direction mechanism, then enters the second membrane unit, and is treated by the second membrane unit to obtain pure water C and concentrated water C, wherein the concentrated water C is directly discharged out of the integrated filter element from the second concentrated water outlet, and the pure water C is permeated into the first membrane unit and is discharged out of the integrated filter element from the raw water inlet.
Preferably, the first membrane unit is provided with a plurality of sheets.
Preferably, the second membrane unit has a plurality of membranes, and the central concentrated/raw water pipe has a plurality of membranes.
Preferably, the concentrated water/raw water central pipes correspond to the second membrane units one by one.
The utility model discloses an integrated form filter core that first membrane unit and second membrane unit use dense water/raw water center tube and pure water center tube to roll up as the axle center and establish.
The utility model discloses an integrated form filter core still is provided with and is used for turning to the upper end cover of dense water A to dense water/former water center tube from first dense water delivery port, and the upper end cover seal assembly just is located first long A one side in first membrane unit and second membrane unit, and the lower end cover seal assembly just is located second long A one side in first membrane unit and second membrane unit.
Preferably, the first membrane unit is a reverse osmosis membrane unit, a nanofiltration membrane unit, or an ultrafiltration membrane unit.
Preferably, the second membrane unit is a reverse osmosis membrane unit, a nanofiltration membrane unit, or an ultrafiltration membrane unit.
The utility model discloses an integrated form filter core is provided with the first membrane unit that is used for preparing the pure water, is used for preparing the pure water and can carry out the second membrane unit and the center tube subassembly that wash to first membrane unit, and first membrane unit and second membrane unit are rolled up with the center tube subassembly and are made integrated as a whole, and the second membrane unit passes through center tube subassembly and first membrane unit intercommunication. The utility model discloses an integrated form filter core has first membrane unit and the second membrane unit that can prepare the pure water when the operating condition, and first membrane unit and second membrane unit are rolled into a whole with central subassembly, can not additionally increase the device, simplify the outward appearance structure of integrated form filter core. This integrated form filter core is when washing the operating mode, and the second membrane unit can prepare the pure water alone to wash the inside remaining dense water of first membrane unit with these pure water, thereby alleviate "head cup water" problem that salt diffusion caused when shutting down to stew. The pure water prepared by the second membrane unit reversely washes the water inlet surface of the second membrane unit from the water production surface of the first membrane unit, and the washing effect of the directional washing mode is superior to that of the forward washing mode.
Another object of the present invention is to avoid the disadvantages of the prior art and to provide a filtration system having such a filter element. The filtering system has the advantage of solving the problem of 'head cup water'.
The above object of the present invention is achieved by the following technical measures:
a filtration system is provided having the integrated filter cartridge described above.
The utility model discloses a filtration system has integrated form filter core, can wash when shutting down and stewing, solves the problem of "head cup water". While not increasing the size of the multiple filtration system.
Drawings
The present invention will be further described with reference to the accompanying drawings, but the contents in the drawings do not constitute any limitation to the present invention.
Fig. 1 is a schematic view of a folding process of a first membrane unit.
Fig. 2 is a schematic view of the folding process of the second membrane unit.
Fig. 3 is a schematic view of the folding process of the produced surface and the adjacent produced surface.
FIG. 4 is a schematic view of the water flow direction of the first membrane unit under the working condition.
FIG. 5 is a schematic view of the water flow direction of the second membrane unit under the working condition.
FIG. 6 is a schematic view of the water flow direction at the water producing surface under operating conditions.
FIG. 7 is a schematic view of the water flow direction of the second membrane unit in the flushing mode.
FIG. 8 is a schematic view of the water flow direction of the first membrane unit in the flushing mode.
Fig. 9 is a schematic cross-sectional view of the first film unit, the second film unit, and the central tube assembly as rolled and integrated.
Fig. 10 is a schematic view of an integrated filter element according to embodiment 2.
In fig. 1 to 10, the following components are included:
a first membrane unit 1, a first width A11, a second width A12, a first length A13, a second length A14, a raw water inlet 15, a first concentrated water outlet 16,
A second membrane unit 2, a first width B21, a second width B22, a first length B23, a second length B24, a second concentrated water outlet 25,
A concentrated water/raw water central pipe 31, a pure water central pipe 32, a single flow mechanism 33,
The water producing surface 4, the water inlet surface 5, the upper end cover 6 and the lower end cover 7.
Detailed Description
The technical solution of the present invention will be further explained by the following examples.
Example 1.
An integrated filter element is provided with a first membrane unit 1 for preparing pure water, a second membrane unit 2 for preparing pure water and flushing the first membrane unit 1 and a central tube assembly, wherein the first membrane unit 1 and the second membrane unit 2 are rolled with the central tube assembly to be integrated into a whole, and the second membrane unit 2 is communicated with the first membrane unit 1 through the central tube assembly, as shown in fig. 1 to 8.
When the filter core operates, raw water enters the first membrane unit 1 to be processed to obtain pure water A and concentrated water A, the concentrated water A enters the second membrane unit 2 through the central tube component, the concentrated water A is processed through the second membrane unit 2 to obtain pure water B and concentrated water B, the concentrated water B directly discharges out of the integrated filter core, and the pure water A and the pure water B discharge out of the integrated filter core through the central tube component.
When the working condition is washed, raw water enters the second membrane unit 2 through the central pipe assembly, the raw water is processed through the second membrane unit 2 to obtain pure water C and concentrated water C, the concentrated water C is directly discharged out of the integrated filter element, and the pure water C is permeated into the first membrane unit 1 and then discharged out of the integrated filter element.
The central pipe assembly is provided with a concentrated water/raw water central pipe 31 for delivering concentrated water generated by the first membrane unit 1 and a pure water central pipe 32 for delivering pure water, the concentrated water/raw water central pipe 31 is respectively communicated with the first membrane unit 1 and the second membrane unit 2, and the pure water central pipe 32 is respectively communicated with the first membrane unit 1 and the second membrane unit 2.
The concentrated water/raw water central pipe 31 is provided with two single-directional mechanisms 33, and the two single-directional mechanisms 33 are respectively assembled at both ends of the concentrated water/raw water central pipe 31.
The single flow mechanism 33 for allowing the concentrated water a to enter is defined as a first single flow mechanism 33, and the single flow mechanism 33 for allowing the raw water to enter is defined as a second single flow mechanism 33.
When the integrated filter core is in an operating working condition, raw water enters the first membrane unit 1 to be treated to obtain pure water A and concentrated water A, the concentrated water A enters the concentrated water/raw water central tube 31 from the first single flow direction mechanism 33 and cannot flow out of the concentrated water/raw water central tube 31 through the second single flow direction mechanism 33, the concentrated water A then enters the second membrane unit 2, the concentrated water A is treated by the second membrane unit 2 to obtain pure water B and concentrated water B, the concentrated water B is directly discharged out of the integrated filter core, and the pure water A and the pure water B are discharged out of the integrated filter core through the pure water central tube 32.
When the filter element is in a flushing working condition, raw water enters the concentrated water/raw water central tube 31 from the second single flow direction mechanism 33 and cannot flow out of the concentrated water/raw water central tube 31 through the first single flow direction mechanism 33, the raw water then enters the second membrane unit 2, the raw water is processed through the second membrane unit 2 to obtain pure water C and concentrated water C, the concentrated water C is directly discharged out of the integrated filter element, and the pure water C is permeated into the first membrane unit 1 and then discharged out of the integrated filter element.
It should be noted that the single-directional mechanism 33 of the present invention is a common knowledge, and those skilled in the art should understand that the description is not repeated here. The single flow direction mechanism 33 which can satisfy the single flow direction passing of the fluid will fall into the protection range of the integrated filter element of the utility model.
The first membrane unit 1 is provided with a water inlet face 5 and a water production face 4.
First membrane unit 1 is the reverse osmosis membrane of dual-layer rectangle structure for the fifty percent discount, and it is relative to intake face 5, and the hem is rectangular minor face, will define the hem as first wide A11, will define the minor face relative with the hem as the wide A12 of second, and two long limits adjacent with the hem are defined as first length A13 and the long A14 of second, and the wide A12 of second carries out sealing process along intake face 5, and first length A13 is raw water inlet 15, and the long A14 of second is first dense water delivery port 16.
The second membrane unit 2 is provided with a water inlet face 5 and a water production face 4.
The second membrane unit 2 is a reverse osmosis membrane folded into a double-layer rectangular structure, the water inlet surfaces 5 are opposite, the folded edges are rectangular short edges, the folded edges are defined as first wide B21, the short edges opposite to the folded edges are defined as second wide B22, two long edges adjacent to the folded edges are defined as first long B23 and second long B24, the concentrated water/raw water central pipe 31 is connected to the water inlet surfaces 5 in a seamless mode, the concentrated water/raw water central pipe 31 is parallel to the first wide B21, the first long B23 and the second long B24 are respectively subjected to sealing treatment along the water inlet surfaces 5, and the second wide B22 is a second concentrated water outlet 25.
The first width a11 abuts against the pure water center pipe 32, and the pure water center pipe 32 is not communicated with the water inlet surface 5 of the first membrane unit 1 and the water inlet surface 5 of the second membrane unit 2.
When the first and second film units 1, 2 are unfolded, the first length a 13 and the first length B23 are on the same side, the second length a 14 and the second length B24 are on the same side, the first width a11 and the first width B21 are on the same side, and the second width a 12 and the second width B22 are on the same side.
The water producing surface 4 of the first membrane unit 1 is provided with a first sealing device along the second width A12, the first length A13 and the second length A14, the sealing devices are respectively connected with the corresponding positions of the first membrane unit 1 or the second membrane unit 2 adjacent to the water inlet film in a sealing way, and a first pure water cavity structure taking the first width A11 as an outlet is formed.
The water producing surface 4 of the second membrane unit 2 is provided with a second sealing device along the second width B22, the first length B23 and the second length B24, and the sealing devices are respectively connected with the corresponding positions of the first membrane unit 1 or the second membrane unit 2 adjacent to the water inlet membrane in a sealing way to form a second pure water cavity structure taking the first width B21 as an outlet.
When the integrated filter element operates, raw water enters the first membrane unit 1 from the raw water inlet 15, the raw water is processed by the first membrane unit 1 to obtain pure water A and concentrated water A, the concentrated water A flows out of the first concentrated water outlet 16 and turns, the concentrated water A then enters the concentrated water/raw water central tube 31 from the first single flow direction mechanism 33, the concentrated water A cannot flow out of the concentrated water/raw water central tube 31 through the second single flow direction mechanism 33, the concentrated water A enters the second membrane unit 2 again, the concentrated water A is processed by the second membrane unit 2 to obtain pure water B and concentrated water B, the concentrated water B directly discharges from the integrated filter element through the second concentrated water outlet 25, and the pure water A and the pure water B discharge from the integrated filter element through the pure water central tube 32.
When the filter element is in a flushing working condition, raw water enters the concentrated water/raw water central tube 31 from the second single flow direction mechanism 33 and cannot flow out of the concentrated water/raw water central tube 31 through the first single flow direction mechanism 33, the raw water then enters the second membrane unit 2, the raw water is processed by the second membrane unit 2 to obtain pure water C and concentrated water C, the concentrated water C directly discharges out of the integrated filter element from the second concentrated water outlet 25, the pure water C permeates into the first membrane unit 1 and then is discharged out of the integrated filter element from the raw water inlet 15.
Compare with prior art's filter core, when the operating mode, with water yield and same effective area, the utility model discloses a first membrane unit 1 and second membrane unit 2 have prolonged the route that the raw water flowed through, can improve the velocity of flow of raw water to reduce and improve life at 2 scale deposit risks of second membrane unit.
The water producing surface 4 and the water inlet surface 5 of the present invention are common knowledge, and those skilled in the art should know the function and difference of the water producing surface 4 and the water inlet surface 5, and will not be described herein again.
It should be noted that, the first pure water cavity structure or the second pure water cavity structure of the present invention and the adjacent first pure water cavity structure or the adjacent second pure water cavity structure form a pure water containing cavity. For example, the first pure water chamber structure is combined with another first pure water chamber structure to form one pure water containing chamber, or the first pure water chamber structure is combined with a second pure water chamber structure to form one pure water containing chamber. This is determined by whether another first membrane unit 1 or second membrane unit 2 is adjacent to the first membrane unit 1. The overlapping sequence of the first membrane unit 1 and the second membrane unit 2 of the present invention may be fixed or random.
The utility model discloses an integrated form filter core that first membrane unit 1 and second membrane unit 2 used thick water/former water center tube 31 and pure water center tube 32 to roll up as the axle center and establish.
The utility model discloses an integrated form filter core still is provided with and is used for turning to the upper end cap 6 to thick water/former water center tube 31 from first thick water delivery port 16 to thick water A, and upper end cap 6 is sealed to be assembled in first membrane unit 1 and second membrane unit 2 and is located first long A13 one side, and lower end cap 7 is sealed to be assembled in first membrane unit 1 and second membrane unit 2 and is located the long A14 one side of second.
The utility model discloses a first membrane unit 1 specifically is reverse osmosis membrane unit, and second membrane unit 2 is reverse osmosis membrane unit. It should be noted that, the first membrane unit 1 of the present invention may be a reverse osmosis membrane unit, and may also be one of a nanofiltration membrane unit or an ultrafiltration membrane unit, and the specific embodiment is determined according to the actual situation. The utility model discloses a second membrane unit 2 can be reverse osmosis membrane unit, also can receive one of filter membrane unit or milipore filter unit, and concrete implementation mode is according to actual conditions and decides.
The utility model discloses an integrated form filter core has first membrane unit 1 and the second membrane unit 2 that can prepare the pure water when the operating mode, and first membrane unit 1 and second membrane unit 2 make a whole with the central subassembly book, can not additionally increase the device, simplify the appearance structure of integrated form filter core. When the integrated filter element is in a flushing working condition, the second membrane unit 2 can be used for independently preparing pure water and flushing residual concentrated water in the first membrane unit 1 by using the pure water, so that the problem of 'head cup water' caused by salt diffusion when the filter element is stopped and stands is solved. The pure water prepared by the second membrane unit 2 reversely flushes the water inlet surface 5 of the second membrane unit 2 from the water production surface 4 of the first membrane unit 1, and the flushing effect of the directional flushing mode is superior to that of the forward flushing mode.
Example 2.
An integrated filter cartridge, as shown in fig. 9 and 10, having the same other features as those of embodiment 1 except that: the utility model discloses an integrated form filter core that first membrane unit 1 and second membrane unit 2 used thick water/former water center tube 31 and pure water center tube 32 to roll up as the axle center and establish.
The utility model discloses an integrated form filter core still is provided with and is used for turning to the upper end cap 6 to thick water/former water center tube 31 from first thick water delivery port 16 to thick water A, and upper end cap 6 is sealed to be assembled in first membrane unit 1 and second membrane unit 2 and is located first long A13 one side, and lower end cap 7 is sealed to be assembled in first membrane unit 1 and second membrane unit 2 and is located the long A14 one side of second.
Compare with embodiment 1, the integrality of an integrated form filter core overall structure of having guaranteed of this embodiment has realized dense water A's flow direction upset simultaneously through upper end cover 6, has simplified the water route connection of dense water export to dense water inlet. The lower end cover 7 can increase the sealing strength of the integrated filter element.
Example 3.
An integrated filter cartridge, otherwise characterized as in example 1, except that: the first membrane unit 1 is provided with a plurality of sheets.
The second membrane unit 2 is provided with a plurality of pieces, and the concentrated water/raw water central pipe 31 is provided with a plurality of pieces.
The concentrated water/raw water central pipes 31 correspond to the second membrane units 2 one to one.
The integrated filter element of this example is more efficient than example 1.
Example 4.
A filtration system having the filter cartridge has the integrated filter cartridge of example 1.
A filtering system can be washed when the machine is stopped and kept still, and solves the problem of 'head cup water'. While not increasing the size of the multiple filtration system.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. An integrated filter cartridge, comprising: the device is provided with a first membrane unit for preparing pure water, a second membrane unit for preparing pure water and flushing the first membrane unit and a central pipe assembly, wherein the first membrane unit and the second membrane unit are rolled with the central pipe assembly to form a whole, and the second membrane unit is communicated with the first membrane unit through the central pipe assembly;
when the integrated filter core is in an operating working condition, raw water enters the first membrane unit to be treated to obtain pure water A and concentrated water A, the concentrated water A enters the second membrane unit through the central tube assembly, the concentrated water A is treated by the second membrane unit to obtain pure water B and concentrated water B, the concentrated water B is directly discharged out of the integrated filter core, and the pure water A and the pure water B are discharged out of the integrated filter core through the central tube assembly;
when the filter core is flushed, raw water enters the second membrane unit through the central pipe assembly, the raw water is processed through the second membrane unit to obtain pure water C and concentrated water C, the concentrated water C is directly discharged out of the integrated filter core, and the pure water C is permeated into the first membrane unit and then discharged out of the integrated filter core.
2. The integrated filter cartridge of claim 1, wherein: the central pipe assembly is provided with a concentrated water/raw water central pipe for conveying concentrated water generated by the first membrane unit and a pure water central pipe for conveying pure water, the concentrated water/raw water central pipes are respectively communicated with the first membrane unit and the second membrane unit, and the pure water central pipe is respectively communicated with the first membrane unit and the second membrane unit.
3. The integrated filter cartridge of claim 2, wherein: the concentrated water/raw water central pipe is provided with two single-flow mechanisms which are respectively assembled at two ends of the concentrated water/raw water central pipe;
a single-flow mechanism for allowing the concentrated water a to enter is defined as a first single-flow mechanism, and a single-flow mechanism for allowing the raw water to enter is defined as a second single-flow mechanism;
when the integrated filter core is in an operating working condition, raw water enters the first membrane unit to be treated to obtain pure water A and concentrated water A, the concentrated water A enters the concentrated water/raw water central tube from the first single flow mechanism and cannot flow out of the concentrated water/raw water central tube through the second single flow mechanism, the concentrated water A then enters the second membrane unit, the concentrated water A is treated by the second membrane unit to obtain pure water B and concentrated water B, the concentrated water B is directly discharged out of the integrated filter core, and the pure water A and the pure water B are discharged out of the integrated filter core through the pure water central tube;
when the filter element is in a flushing working condition, raw water enters the concentrated water/raw water central tube from the second single flow direction mechanism and cannot flow out of the concentrated water/raw water central tube through the first single flow direction mechanism, then enters the second membrane unit, and is treated by the second membrane unit to obtain pure water C and concentrated water C, wherein the concentrated water C is directly discharged out of the integrated filter element, and the pure water C is discharged out of the integrated filter element after permeating into the first membrane unit.
4. The integrated filter cartridge of claim 3, wherein: the first membrane unit is provided with a water inlet surface and a water production surface;
the first membrane unit is a reverse osmosis membrane folded into a double-layer rectangular structure, the water inlet surfaces are opposite, the opposite folding edges are rectangular short edges, the opposite folding edges are defined as a first wide A, the short edges opposite to the opposite folding edges are defined as a second wide A, two long edges adjacent to the opposite folding edges are defined as a first long A and a second long A, the second wide A is subjected to sealing treatment along the water inlet surfaces, the first long A is a raw water inlet, and the second long A is a first concentrated water outlet.
5. The integrated filter cartridge of claim 4, wherein: the second membrane unit is provided with a water inlet surface and a water production surface;
the second membrane unit is a reverse osmosis membrane folded into a double-layer rectangular structure, the water inlet surfaces of the reverse osmosis membrane are opposite, the opposite folding edges are rectangular short edges, the opposite folding edges are defined as first wide B, the short edges opposite to the opposite folding edges are defined as second wide B, two long edges adjacent to the folding edges are defined as first long B and second long B, the concentrated water/raw water central pipe is connected to the water inlet surfaces in a seamless mode, the concentrated water/raw water central pipe is parallel to the first wide B, the first long B and the second long B are respectively subjected to sealing treatment along the water inlet surfaces, and the second wide B is a second concentrated water outlet.
6. The integrated filter cartridge of claim 5, wherein: the first width A is abutted against the pure water central pipe, and the pure water central pipe is not communicated with the water inlet surface of the first membrane unit and the water inlet surface of the second membrane unit;
when the first film element and the second film element are unfolded, the first length A and the first length B are positioned on the same side, the second length A and the second length B are positioned on the same side, the first width A and the first width B are positioned on the same side, and the second width A and the second width B are positioned on the same side;
the water producing surface of the first membrane unit is provided with a first sealing device along the second width A, the first length A and the second length A, and the sealing devices are respectively in sealing connection with corresponding positions of the first membrane unit or the second membrane unit adjacent to the water inlet film to form a first pure water cavity structure taking the first width A as an outlet;
a water producing surface of the second membrane unit is provided with a second sealing device along a second width B, a first length B and a second length B, and the sealing devices are respectively in sealing connection with corresponding positions of the first membrane unit or the second membrane unit adjacent to the water inlet membrane to form a second pure water cavity structure taking the first width B as an outlet;
when the integrated filter core is in an operating working condition, raw water enters the first membrane unit from the raw water inlet, the raw water is processed by the first membrane unit to obtain pure water A and concentrated water A, the concentrated water A flows out of the first concentrated water outlet and turns, the concentrated water A then enters the concentrated water/raw water central tube from the first single flow direction mechanism, the concentrated water A cannot flow out of the concentrated water/raw water central tube through the second single flow direction mechanism, the concentrated water A then enters the second membrane unit, the concentrated water A is processed by the second membrane unit to obtain pure water B and concentrated water B, the concentrated water B directly discharges from the integrated filter core through the second concentrated water outlet, and the pure water A and the pure water B discharge from the integrated filter core through the pure water central tube;
when the integrated filter element is flushed, raw water enters the concentrated water/raw water central tube from the second single flow direction mechanism and cannot flow out of the concentrated water/raw water central tube through the first single flow direction mechanism, then enters the second membrane unit, and is treated by the second membrane unit to obtain pure water C and concentrated water C, wherein the concentrated water C is directly discharged out of the integrated filter element from the second concentrated water outlet, and the pure water C is permeated into the first membrane unit and is discharged out of the integrated filter element from the raw water inlet.
7. The integrated filter cartridge of claim 6, wherein: the first membrane unit is provided with a plurality of sheets.
8. The integrated filter cartridge of claim 6 or 7, wherein: the second membrane unit is provided with a plurality of pieces, and the concentrated water/raw water central pipe is provided with a plurality of pieces;
the concentrated water/raw water central pipes correspond to the second membrane units one by one.
9. The integrated filter cartridge of claim 8, wherein: the integrated filter element is formed by winding a first membrane unit and a second membrane unit by taking a concentrated water/raw water central pipe and a pure water central pipe as axes;
the upper end cover is used for turning the concentrated water A from the first concentrated water outlet to the concentrated water/raw water central pipe, the upper end cover is hermetically assembled on the first membrane unit and the second membrane unit and is positioned on one side of the first length A, and the lower end cover is hermetically assembled on the first membrane unit and the second membrane unit and is positioned on one side of the second length A;
the first membrane unit is a reverse osmosis membrane unit, a nanofiltration membrane unit or an ultrafiltration membrane unit;
the second membrane unit is a reverse osmosis membrane unit, a nanofiltration membrane unit or an ultrafiltration membrane unit.
10. A filtration system, characterized by: an integrated filter cartridge according to any one of claims 1 to 9.
CN201920322408.9U 2019-03-13 2019-03-13 Integrated filter element and filter system with same Active CN209974373U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109911988A (en) * 2019-03-13 2019-06-21 佛山市云米电器科技有限公司 Integrated form filter core and filtration system with the filter core

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109911988A (en) * 2019-03-13 2019-06-21 佛山市云米电器科技有限公司 Integrated form filter core and filtration system with the filter core

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