CN215946932U - Water purification filter core with waste water discharge function - Google Patents

Abstract

The utility model discloses a water purification filter element with a wastewater discharge function, which comprises a shell, an RO membrane composite filter element, a supporting tube, a water diversion pipe and an active carbon filter sheet, wherein the shell is provided with a water inlet and a water outlet; the RO membrane composite filter element comprises a carbon fiber film and an RO membrane, and the carbon fiber film and the RO membrane are both wound on the outer side surface of the supporting tube; the lower end of the water diversion pipe is sleeved at the upper end of the supporting pipe; the filtering end at the inner side of the RO membrane composite filter element is communicated with the outside through a supporting pipe and a water distribution pipe in sequence; the outer side surface of the RO membrane composite filter element is a filtration starting end, and the filtration starting end of the RO membrane composite filter element is communicated with the outside through a gap between the outer side surface of the water diversion pipe and the inner side surface of the shell; the active carbon filter is installed in dividing the water pipe, including active carbon filter, carbon fiber film and RO diaphragm, has tertiary water purification's function to can discharge RO membrane composite filter core begin the waste water that the end was gathered, compact structure, purification efficiency height, occupation space are little, have good suitability.

Description

Water purification filter core with waste water discharge function

Technical Field

The utility model relates to the technical field of water purification equipment, in particular to a water purification filter element with a wastewater discharge function.

Background

The multi-stage filtering water purifier with RO membrane in the prior art has the function of discharging waste water, but has a complex structure, such as for purifying mineral water or drinking water again, the occupied space is large, and the purification efficiency is low.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks, the present invention provides a water purification cartridge with a wastewater discharge function, which has a compact structure and high purification efficiency.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a water purification filter element with a wastewater discharge function comprises a shell, an RO membrane composite filter element, a supporting tube, a water diversion pipe and an active carbon filter sheet;

the RO membrane composite filter element comprises a carbon fiber film and an RO membrane, and the carbon fiber film and the RO membrane are wound on the outer side surface of the supporting tube; the lower end of the water diversion pipe is sleeved at the upper end of the supporting pipe, and the upper end of the water diversion pipe extends upwards to the outside of the shell;

the filtering end at the inner side of the RO membrane composite filter element is communicated with the outside through the supporting pipe and the water dividing pipe in sequence so as to output purified water filtered by the RO membrane composite filter element;

the outer side surface of the RO membrane composite filter element is a filtration starting end, and the filtration starting end of the RO membrane composite filter element is communicated with the outside through a gap between the outer side surface of the water diversion pipe and the inner side surface of the shell so as to output wastewater;

the active carbon filter sheet is arranged in the water diversion pipe and is close to the upper end part of the supporting pipe.

Further, the device also comprises a waste water valve;

the shell is provided with a water outlet pipe, the water outlet pipe is positioned at the upper end of the shell, and the water outlet pipe is sleeved on the outer side surface of the water distribution pipe;

the waste water valve is installed between the inner side surface of the water outlet pipe and the outer side surface of the water distribution pipe, the upper end of the waste water valve is communicated with the outside through a gap between the inner side surface of the water outlet pipe and the outer side surface of the water distribution pipe, and the lower end of the waste water valve is communicated with a gap between the outer side surface of the RO membrane composite filter element and the inner side surface of the shell.

In some embodiments, further comprising a first inlet valve;

the upper end of the shell is also provided with a hollow water inlet pipe, and the water inlet pipe is positioned on the outer side of the water outlet pipe;

the first water inlet valve is arranged in the water inlet pipe, the lower end of the first water inlet valve is communicated with a gap between the outer side surface of the RO membrane composite filter element and the inner side surface of the shell, and the upper end of the first water inlet valve is connected with an external water source.

In still other embodiments, a second inlet valve is also included;

the lower end of the shell is provided with a lower cover, the middle of the lower cover is provided with a mounting hole, the second water inlet valve is mounted in the mounting hole, the upper end of the second water inlet valve is communicated with a gap between the outer side surface of the RO membrane composite filter element and the inner side surface of the shell through the gap between the lower end of the RO membrane composite filter element and the inner side surface of the lower cover, and the lower end of the second water inlet valve is connected with an external water source.

Preferably, the waste water valve is a check valve which is communicated outwards in a one-way mode.

Preferably, the first water inlet valve is a check valve which is communicated inwards in a one-way mode.

Preferably, the second water inlet valve is a check valve which is communicated inwards in a one-way mode.

The water outlet valve is arranged in the water distribution pipe close to the upper end of the activated carbon filter sheet;

the water outlet valve is a check valve which is communicated outwards in a one-way mode, the lower end of the water outlet valve is communicated with the filtering end of the RO membrane composite filter element sequentially through the water distribution pipe and the supporting pipe, and the upper end of the water outlet valve is communicated with the outside.

Preferably, the support tube is a microporous ceramic sintered filter element, a microporous diatomite sintered filter element or a microporous molecular sieve sintered filter element.

In still other embodiments, the support tube comprises an outlet tube, a back seat and a bracket body;

the bracket body comprises a plurality of supporting sheets and a plurality of blocking sheets;

the inner side edges of the support plates are connected with each other; a water outlet hole is formed in the water outlet pipe;

the rear end of the water outlet pipe and the front end of the rear seat are respectively connected with the front ends and the rear ends of the supporting pieces; the plurality of baffle plates are arranged on the outer side of the supporting sheet at intervals along the length direction of the supporting sheet, and two ends of each baffle plate extend to two sides along the direction perpendicular to the supporting sheet;

the outer side surfaces of the retaining pieces, the outer side surfaces of the supporting pieces, the outer side surface of the water outlet pipe and the outer side surface of the rear seat are positioned on the same cylindrical circumferential surface;

the RO membrane and the carbon fiber film are wound on the outer side surface of the supporting tube and cover the gap between two adjacent supporting pieces, and the gap between two adjacent supporting pieces is communicated with the water outlet; the water outlet hole is communicated with the lower end of the water outlet valve through the water distribution pipe.

The technical scheme of the utility model has the beneficial effects that: water purification filter core with waste water discharge function, including RO membrane composite filter core and active carbon filter piece, RO membrane composite filter core includes carbon fiber film and RO diaphragm, the function of tertiary purified water has, and can discharge the waste water that the end was gathered in beginning of filtering of RO membrane composite filter core through the clearance between the medial surface of lateral surface and the shell of distributive pipe, both be fit for purifying once more of mineral water or drinking water, compact structure, purification efficiency is high, occupation space is little, can regard as rearmounted filter core again to install and use in the filter equipment who has elementary filtering capability, good suitability has.

Drawings

FIG. 1 is a schematic sectional view of a water purification cartridge with a waste water discharge function according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the embodiment of FIG. 1;

fig. 3 is a partially enlarged view of a portion a of fig. 1;

FIG. 4 is a schematic sectional view of a water purification cartridge with a wastewater discharge function according to another embodiment of the present invention;

FIG. 5 is a schematic structural diagram of the embodiment of FIG. 4;

fig. 6 is a partial enlarged view of a portion B of fig. 4;

FIG. 7 is a schematic structural view of another embodiment of the support tube of the present invention;

wherein: a housing 1; an RO membrane composite filter element 2; a support tube 3; a water distribution pipe 4; an active carbon filter 5; a first water inlet valve 6; a waste water valve 7; a water outlet valve 8; a second inlet valve 9; a water outlet pipe 11; a lower cover 12; a water inlet pipe 13; mounting holes 121; a water outlet pipe 31; a rear seat 32; a support body 33; a water outlet hole 311; a support piece 331; a flap 332.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the attached fig. 1-7.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

A water purification filter element with a wastewater discharge function comprises a shell 1, an RO membrane composite filter element 2, a support tube 3, a water diversion tube 4 and an active carbon filter plate 5;

the RO membrane composite filter element 2 comprises a carbon fiber film and an RO membrane, and the carbon fiber film and the RO membrane are both wound on the outer side surface of the support tube 3; the lower end of the water diversion pipe 4 is sleeved at the upper end of the support pipe 3, and the upper end of the water diversion pipe 4 extends upwards to the outside of the shell 1;

the filtering end at the inner side of the RO membrane composite filter element 2 is communicated with the outside through the supporting tube 3 and the water dividing tube 4 in sequence so as to output purified water filtered by the RO membrane composite filter element 2;

the outer side surface of the RO membrane composite filter element 2 is a filtration starting end, and the filtration starting end of the RO membrane composite filter element 2 is communicated with the outside through a gap between the outer side surface of the water diversion pipe 4 and the inner side surface of the shell 1 so as to output wastewater;

the active carbon filter 5 is arranged in the water distribution pipe 4 and is close to the upper end part of the support pipe 3.

As shown in fig. 1 to 6, the water purification cartridge with wastewater discharge function of the present invention includes an RO membrane composite cartridge 2 and an activated carbon filter 5, the RO membrane composite cartridge 2 includes a carbon fiber membrane and an RO membrane sheet, has a three-stage water purification function, and can discharge wastewater accumulated at a filtration start end of the RO membrane composite cartridge 2 through a gap between an outer side surface of the water diversion pipe 4 and an inner side surface of the housing 1, which is suitable for re-purification of mineral water or drinking water, has a compact structure, high purification efficiency, small occupied space, and can be installed as a post-filter in a filtration device with a primary filtration function, and has good applicability.

Further, a waste water valve 7 is also included;

the shell 1 is provided with a water outlet pipe 11, the water outlet pipe 11 is positioned at the upper end of the shell 1, and the water outlet pipe 11 is sleeved on the outer side surface of the water distribution pipe 4;

the waste water valve 7 is installed between the inner side surface of the water outlet pipe 11 and the outer side surface of the water distribution pipe 4, the upper end of the waste water valve 7 is communicated with the outside through a gap between the inner side surface of the water outlet pipe 11 and the outer side surface of the water distribution pipe 4, and the lower end of the waste water valve 7 is communicated with a gap between the outer side surface of the RO membrane composite filter element 2 and the inner side surface of the shell 1.

As shown in fig. 1-6, the waste water at the initial filtering end of the RO membrane composite filter element 2 discharged through the gap between the inner side surface of the water outlet pipe 11 and the outer side surface of the water dividing pipe 4 can be controlled by the waste water valve 7.

In some embodiments, a first inlet valve 6 is also included;

the upper end of the shell 1 is also provided with a hollow water inlet pipe 13, and the water inlet pipe 13 is positioned on the outer side of the water outlet pipe 11;

the first water inlet valve 6 is installed in the water inlet pipe 13, the lower end of the first water inlet valve 6 is communicated with a gap between the outer side surface of the RO membrane composite filter element 2 and the inner side surface of the shell 1, and the upper end of the first water inlet valve 6 is connected with an external water source.

As shown in fig. 1-3, a water source, which may be primarily filtered purified water, or mineral water or drinking water, may be input to the filtration start end of the RO membrane composite filter element 2 through the first water inlet valve 6.

In a further embodiment, a second inlet valve 9 is also included;

the lower end of the shell 1 is provided with a lower cover 12, the middle part of the lower cover 12 is provided with a mounting hole 121, the second water inlet valve 9 is mounted in the mounting hole 121, the upper end of the second water inlet valve 9 is communicated with the gap between the outer side surface of the RO membrane composite filter element 2 and the inner side surface of the shell 1 through the gap between the lower end of the RO membrane composite filter element 2 and the inner side surface of the lower cover 12, and the lower end of the second water inlet valve 9 is connected with an external water source.

As shown in fig. 4-6, a hollow water inlet pipe 13 may be further provided at the upper end of the housing 1 to install the first water inlet valve 6 for supplying an input water source at the filtration start end of the RO membrane composite filter element 2; alternatively, a mounting hole 121 is formed in the middle of the lower cover 12, and a second water inlet valve 9 is installed in the mounting hole 121, so that a water source is supplied from the lower end of the water purification filter element with wastewater discharge function to the filtration starting end of the RO membrane composite filter element 2.

Preferably, the waste water valve 7 is a check valve which is communicated in one way outwards.

The opening, closing and flow rate of the wastewater discharge at the filtering end of the RO membrane composite filter element 2 can be controlled by the wastewater valve 7.

Preferably, the first water inlet valve 6 is a check valve which is communicated inwards in a one-way mode.

The opening and closing and the flow speed of water to be purified input into the initial filtering end of the RO membrane composite filter element 2 can be controlled through the first water inlet valve 6, the first water inlet valve 6 is a check valve conducting inwards in a one-way mode, when the water purifying filter element with the waste water discharging function is taken down for maintenance, the phenomenon that water flows outwards from the first water inlet valve 6 cannot occur, and the cleaning burden during maintenance can be reduced.

Preferably, the second water inlet valve 9 is a check valve which is communicated inwards in a one-way mode.

The opening and closing and the flow velocity of water to be purified input into the initial filtering end of the RO membrane composite filter element 2 can be controlled through the second water inlet valve 9, the second water inlet valve 9 is a check valve conducting inwards in a one-way mode, when the water purifying filter element with the waste water discharging function is taken down for maintenance, the phenomenon that water flows outwards from the second water inlet valve 9 cannot occur, and the cleaning burden during maintenance can be reduced.

Further, the water distributor also comprises a water outlet valve 8, wherein the water outlet valve 8 is arranged in the water distribution pipe 4 close to the upper end of the activated carbon filter 5;

the water outlet valve 8 is a check valve which is communicated outwards in a one-way mode, the lower end of the water outlet valve 8 is communicated with the filtering end of the RO membrane composite filter element 2 sequentially through the water distribution pipe 4 and the support pipe 3, and the upper end of the water outlet valve 8 is communicated with the outside.

As shown in fig. 3 and 5, purified water produced at the filtering end of the RO membrane composite filter element 2 is output from the support tube 3 to the outside through the water diversion tube 4, and the opening and closing and the flow rate of the output purified water can be controlled by the water outlet valve 8.

Preferably, the support tube 3 is a microporous ceramic sintered filter element, a microporous diatomite sintered filter element or a microporous molecular sieve sintered filter element.

The microporous ceramic sintered filter element, the microporous diatomite sintered filter element or the microporous molecular sieve sintered filter element not only have quick filtering efficiency, but also have stronger surface hardness, and can powerfully support the winding of the RO membrane and the carbon fiber film.

The supporting tube 3 can be a microporous ceramic sintered filter element, a microporous diatomite sintered filter element or a microporous molecular sieve sintered filter element, or a microporous activated carbon filter element, or a central tube with water through holes on the outer side surface in the prior art.

In still other embodiments, the support tube 3 comprises a water outlet tube 31, a rear seat 32 and a bracket body 33;

the holder body 33 includes a plurality of support pieces 331 and a plurality of blocking pieces 332;

the inner side edges of the support pieces 331 are connected to each other; a water outlet hole 311 is formed in the water outlet pipe 31;

the rear end of the water outlet pipe 31 and the front end of the rear seat 32 are respectively connected with the front ends and the rear ends of the supporting pieces 331; the plurality of blocking pieces 332 are arranged at intervals outside the supporting piece 331 along the length direction of the supporting piece 331, and two ends of the blocking pieces 332 extend to two sides along a direction perpendicular to the supporting piece 331;

the outer side surfaces of the blocking pieces 332, the outer side surfaces of the supporting pieces 331, the outer side surface of the water outlet pipe 31 and the outer side surface of the rear seat 32 are positioned on the same cylindrical circumferential surface;

the RO membrane and the carbon fiber membrane are wound on the outer side surface of the support tube 3 and cover the gap between two adjacent support pieces 331, and the gap between two adjacent support pieces 331 is communicated with the water outlet 311; the water outlet hole 311 is communicated with the lower end of the water outlet valve 8 through the water distribution pipe 4.

As shown in fig. 7, the gap between two adjacent support plates 331 forms a water flow channel for conveying purified water filtered by the composite RO membrane cartridge 2, and has a larger drainage space; the inner side surface of the baffle 332 is communicated with the gap between the side surfaces of the two adjacent supporting pieces 331, the gap between the two adjacent supporting pieces 331 and the water outlet hole 311 to form a continuous and smooth water flow channel for outputting purified water outwards. The outer side surfaces of the blocking pieces 332, the support pieces 331, the water outlet pipe 31 and the rear seat 32 are located on the same cylindrical circumferential surface, so that the contact area between the RO membrane and the carbon fiber film can be increased, the support framework is more stable and powerful, the RO membrane and the carbon fiber film wound on the support pipe 3 can be effectively prevented from shrinking and wrinkling or inwards sinking, and the compression strength and the installation stability of the RO membrane or the carbon fiber film are further improved.

In summary, as shown in the embodiments of the present invention shown in fig. 1 to 7, the water purification cartridge with a wastewater discharge function includes an RO membrane composite cartridge 2 and an activated carbon filter sheet 5, the RO membrane composite cartridge 2 includes a carbon fiber membrane and an RO membrane sheet, has a function of three-stage water purification, and can discharge wastewater accumulated at a filtration start end of the RO membrane composite cartridge 2 through a gap between an outer side surface of the water diversion pipe 4 and an inner side surface of the housing 1, so that the water purification cartridge is suitable for re-purification of mineral water or drinking water, has a compact structure, high purification efficiency, small occupied space, and can be installed as a post-filter cartridge in a filter device with a primary filtration function, and has good applicability.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims (10)

1. A water purification filter element with a wastewater discharge function is characterized by comprising a shell, an RO membrane composite filter element, a supporting tube, a water diversion pipe and an active carbon filter sheet;

the RO membrane composite filter element comprises a carbon fiber film and an RO membrane, and the carbon fiber film and the RO membrane are wound on the outer side surface of the supporting tube; the lower end of the water diversion pipe is sleeved at the upper end of the supporting pipe, and the upper end of the water diversion pipe extends upwards to the outside of the shell;

the filtering end at the inner side of the RO membrane composite filter element is communicated with the outside through the supporting pipe and the water dividing pipe in sequence so as to output purified water filtered by the RO membrane composite filter element;

the outer side surface of the RO membrane composite filter element is a filtration starting end, and the filtration starting end of the RO membrane composite filter element is communicated with the outside through a gap between the outer side surface of the water diversion pipe and the inner side surface of the shell so as to output wastewater;

the active carbon filter sheet is arranged in the water diversion pipe and is close to the upper end part of the supporting pipe.

2. The water purification cartridge with wastewater discharge function of claim 1, further comprising a wastewater valve;

the shell is provided with a water outlet pipe, the water outlet pipe is positioned at the upper end of the shell, and the water outlet pipe is sleeved on the outer side surface of the water distribution pipe;

the waste water valve is installed between the inner side surface of the water outlet pipe and the outer side surface of the water distribution pipe, the upper end of the waste water valve is communicated with the outside through a gap between the inner side surface of the water outlet pipe and the outer side surface of the water distribution pipe, and the lower end of the waste water valve is communicated with a gap between the outer side surface of the RO membrane composite filter element and the inner side surface of the shell.

3. The water purification filter element with wastewater discharge function of claim 2, further comprising a first water inlet valve;

the upper end of the shell is also provided with a hollow water inlet pipe, and the water inlet pipe is positioned on the outer side of the water outlet pipe;

the first water inlet valve is arranged in the water inlet pipe, the lower end of the first water inlet valve is communicated with a gap between the outer side surface of the RO membrane composite filter element and the inner side surface of the shell, and the upper end of the first water inlet valve is connected with an external water source.

4. The water purification filter element with wastewater discharge function of claim 2, further comprising a second water inlet valve;

the lower end of the shell is provided with a lower cover, the middle of the lower cover is provided with a mounting hole, the second water inlet valve is mounted in the mounting hole, the upper end of the second water inlet valve is communicated with a gap between the outer side surface of the RO membrane composite filter element and the inner side surface of the shell through the gap between the lower end of the RO membrane composite filter element and the inner side surface of the lower cover, and the lower end of the second water inlet valve is connected with an external water source.

5. The water purification filter element with wastewater discharge function of claim 2, wherein the wastewater valve is a check valve which is communicated in one way outwards.

6. The water purification filter element with wastewater discharge function of claim 3, wherein the first water inlet valve is a check valve which is communicated in one way inwards.

7. The water purification filter element with wastewater discharge function of claim 4, wherein the second water inlet valve is a check valve which is communicated in one way inwards.

8. The water purification filter element with the wastewater discharge function of claim 1, further comprising a water outlet valve, wherein the water outlet valve is arranged in the water distribution pipe close to the upper end of the activated carbon filter sheet;

the water outlet valve is a check valve which is communicated outwards in a one-way mode, the lower end of the water outlet valve is communicated with the filtering end of the RO membrane composite filter element sequentially through the water distribution pipe and the supporting pipe, and the upper end of the water outlet valve is communicated with the outside.

9. The water purification cartridge with wastewater discharge function as claimed in claim 1, wherein the support tube is a microporous ceramic sintered cartridge, a microporous diatomite sintered cartridge or a microporous molecular sieve sintered cartridge.

10. The water purification filter element with wastewater discharge function of claim 8, wherein the support tube comprises a water outlet tube, a rear seat and a bracket body;

the bracket body comprises a plurality of supporting sheets and a plurality of blocking sheets;

the inner side edges of the support plates are connected with each other; a water outlet hole is formed in the water outlet pipe;

the rear end of the water outlet pipe and the front end of the rear seat are respectively connected with the front ends and the rear ends of the supporting pieces; the plurality of baffle plates are arranged on the outer side of the supporting sheet at intervals along the length direction of the supporting sheet, and two ends of each baffle plate extend to two sides along the direction perpendicular to the supporting sheet;

the outer side surfaces of the retaining pieces, the outer side surfaces of the supporting pieces, the outer side surface of the water outlet pipe and the outer side surface of the rear seat are positioned on the same cylindrical circumferential surface;

the RO membrane and the carbon fiber film are wound on the outer side surface of the supporting tube and cover the gap between two adjacent supporting pieces, and the gap between two adjacent supporting pieces is communicated with the water outlet; the water outlet hole is communicated with the lower end of the water outlet valve through the water distribution pipe.

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