KR20160109967A - assembly of RO sheet and RO filter - Google Patents

assembly of RO sheet and RO filter Download PDF

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Publication number
KR20160109967A
KR20160109967A KR1020150043520A KR20150043520A KR20160109967A KR 20160109967 A KR20160109967 A KR 20160109967A KR 1020150043520 A KR1020150043520 A KR 1020150043520A KR 20150043520 A KR20150043520 A KR 20150043520A KR 20160109967 A KR20160109967 A KR 20160109967A
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KR
South Korea
Prior art keywords
reverse osmosis
osmosis membrane
membrane sheet
discharged
raw water
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Application number
KR1020150043520A
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Korean (ko)
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KR101741775B1 (en
Inventor
임성택
홍현기
Original Assignee
주식회사 피코그램
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Publication of KR20160109967A publication Critical patent/KR20160109967A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • 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

Abstract

The present invention relates to a reverse osmosis membrane sheet which is contacted with a surface of a reverse osmosis membrane sheet to extend a moving path of raw water to be subjected to purified water treatment to increase the throughput of purified water and relatively reduce the amount of concentrated water,
The assembly of the reverse osmosis membrane sheet according to an embodiment of the present invention includes:
A central pipe through which a through hole is formed in a radial direction and into which raw water flows;
A reverse osmosis membrane sheet in the shape of a bag for filtering foreign substances contained in raw water which is wound around the central pipe and is discharged through the through hole, wherein the reverse osmosis membrane sheet comprises a reverse osmosis membrane sheet, And the concentrated water flowing in the longitudinal direction of the reverse osmosis membrane sheet is discharged through the open end of the other end;
A raw water inflow network provided between inner side surfaces of the bag-shaped reverse osmosis membrane sheet to secure a passage through which raw water flows;
And a purified water supply line provided between outer surfaces of the bag-shaped reverse osmosis membrane sheet for securing a passage through which purified water flows.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reverse osmosis membrane sheet assembly,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly of a reverse osmosis membrane sheet, and more particularly, to an assembly of a reverse osmosis membrane sheet and a reverse osmosis membrane filter for accommodating the reverse osmosis membrane sheet assembly.

In general, the reverse osmosis membrane filter is composed of 0.0001 micron reverse osmosis membrane to filter not only heavy metals such as lead and arsenic, but also natrium and various pathogens. The purified water passing through the reverse osmosis membrane is connected to the purified water pipe, And is connected to the water pipe.

Wherein the reverse osmosis membrane filter is provided with a raw water spacer for securing a raw water moving passage between filtering members for filtering foreign substances contained in the raw water and spirally winding the filtering member and the raw water spacers around a central pipe, And the outer surface is surrounded by an outer film made of nonwoven fabric or the like.

In the reverse osmosis membrane filter, water and purified water are separated from the reverse osmosis membrane sheet while the raw water is being moved in the lateral direction, and the retention time of the raw water in contact with the surface of the reverse osmosis membrane sheet is shortened. As a result, the throughput of the purified water is relatively smaller than that of the concentrated water (for example, the amount of concentrated water is about 1: 3 as compared to the water treatment amount).

Patent Application No. 10-2011-7006005 discloses a spiral reverse osmosis membrane.

An embodiment of the present invention relates to an assembly of a reverse osmosis membrane sheet, in which raw water flows in the longitudinal direction to the reverse osmosis membrane sheet, thereby increasing the throughput of the purified water and relatively reducing the amount of concentrated water, To a reverse osmosis membrane filter.

An embodiment of the present invention is directed to an assembly of a reverse osmosis membrane sheet which can easily attach and detach a filter housing to a head connector by mounting a flow path switching guide having a raw water port, a purified water port and a concentrated water port in an opening of the filter housing, To a reverse osmosis membrane filter.

The assembly of the reverse osmosis membrane sheet according to an embodiment of the present invention includes:

A central pipe through which a through hole is formed in a radial direction and into which raw water flows;

A reverse osmosis membrane sheet in the shape of a bag for filtering foreign substances contained in raw water which is wound around the central pipe and is discharged through the through hole, wherein the reverse osmosis membrane sheet comprises a reverse osmosis membrane sheet, And the concentrated water flowing in the longitudinal direction of the reverse osmosis membrane sheet is discharged through the open end of the other end;

A raw water inflow network provided between inner side surfaces of the bag-shaped reverse osmosis membrane sheet to secure a passage through which raw water flows;

And a purified water supply line provided between outer surfaces of the bag-shaped reverse osmosis membrane sheet for securing a passage through which purified water flows.

According to a preferred embodiment,

The reverse osmosis membrane module according to any one of claims 1 to 3, wherein the reverse osmosis membrane module module comprises: a reverse osmosis membrane module And a channel switching guide.

The reverse osmosis membrane sheet is installed between the upper end of the reverse osmosis membrane sheet and the lower end of the passage switching guide to prevent mutual mixing of the purified water discharged from the reverse osmosis membrane sheet and the concentrated water moved from the reverse osmosis membrane sheet to the concentrated water discharge port, An upper holder for preventing mutual mixing of the incoming raw water and the purified water discharged from the reverse osmosis membrane sheet;

And a lower holder installed at the lower end of the reverse osmosis membrane sheet to prevent mutual mixing of the purified water discharged from the reverse osmosis membrane sheet and purified water treated by the reverse osmosis membrane sheet.

The reverse osmosis membrane sheet

Wherein the raw water discharged through the through holes is guided so as to flow in the longitudinal direction of the reverse osmosis membrane sheet from the outside of the reverse osmosis membrane sheet having a cross-

And the concentrated water filtered by the reverse osmosis membrane sheet is guided to flow in the longitudinal direction of the reverse osmosis membrane sheet from the inside of the reverse osmosis membrane sheet having a cross section in the shape of a bag.

The reverse osmosis membrane sheet

One end fixed to the central pipe is formed to be closed,

The concentrated water is formed so that the upper end and the lower end are clogged so as to flow in the longitudinal direction of the reverse osmosis membrane sheet from the inside of the reverse osmosis membrane sheet,

And the other end of the concentrated water is opened so that three sides are closed when the reverse osmosis membrane sheet is unfolded.

The assembly of the reverse osmosis membrane sheet may include a filter housing for receiving the reverse osmosis membrane sheet.

The filter housing

A raw water inflow nipple formed at one end of the filter housing for introducing raw water into the central pipe;

A purified water discharge nipple formed at one end of the filter housing to discharge purified water purified by the reverse osmosis membrane sheet;

And a concentrated water discharging nipple formed at the other end of the filter housing to discharge the concentrated water filtered by the reverse osmosis membrane sheet.

An upper holder installed at an upper end of the reverse osmosis membrane sheet to prevent mutual mixing of the purified water discharged from the reverse osmosis membrane sheet to the purified water discharge nipple and the concentrated water discharged from the reverse osmosis membrane sheet;

And a lower holder mounted at a lower end of the reverse osmosis membrane sheet to prevent mutual mixing of the purified water purified by the reverse osmosis membrane sheet and the concentrated water discharged from the reverse osmosis membrane sheet to the nip for discharging the concentrated water. do.

The reverse osmosis membrane sheet

The reverse osmosis membrane module according to any one of claims 1 to 3, wherein the reverse osmosis membrane module comprises a reverse osmosis membrane module The purified water passing through the amide surface is discharged to the outside,

And the concentrated water not passing through the amide surface is formed so as to be moved in the longitudinal direction from the inside of the bag-shaped reverse osmosis membrane sheet and to be discharged through one opening portion.

The embodiment of the present invention configured as described above has the following advantages.

By extending the feed passage of the raw water through the reverse osmosis membrane sheet in the longitudinal direction, the throughput of the purified water can be increased and the amount of concentrated water can be relatively reduced, thereby improving practicality and reliability.

In addition, it is practicable to increase the throughput of the purified water without changing the diameter of the reverse osmosis membrane cartridge and the filter housing accommodating the reverse osmosis membrane cartridge.

In addition, since the passage switching guide having the raw water port, the purified water port and the concentrated water port is installed in the opening of the filter housing, the general user can easily replace the filter housing with the head connector.

1 is a schematic perspective view of an assembly of a reverse osmosis membrane sheet according to an embodiment of the present invention,
FIG. 2 (a) is a view for explaining a flow of raw water, purified water, and concentrated water flowing into a reverse osmosis membrane sheet in an assembly of a reverse osmosis membrane sheet according to an embodiment of the present invention,
FIG. 2 (b) is a view for explaining a process of treating a purified water and a concentrated water by a reverse osmosis membrane sheet in an assembly of a reverse osmosis membrane sheet according to an embodiment of the present invention,
3 (a) and (b) are cross-sectional views of the assembly of the reverse osmosis membrane sheet according to an embodiment of the present invention,
4 is a cross-sectional view illustrating a nipple type filter housing in a reverse osmosis membrane sheet assembly and a reverse osmosis membrane filter for accommodating the same according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to illustrate the present invention in a manner that allows a person skilled in the art to easily carry out the invention. And does not mean that the technical idea and scope of the invention are limited.

The assembly of the reverse osmosis membrane sheet according to an embodiment of the present invention shown in Figs. 1 to 3 (a, b)

A central pipe 11 in which a through hole 10 is formed in a radial direction and raw water such as tap water flows therein;

A reverse osmosis membrane sheet 12 having a cylindrical shape and having one end closed and wound around the central pipe 11 to filter foreign substances contained in raw water discharged through the through hole 10, ) Guides the raw water to flow in the longitudinal direction of the reverse osmosis membrane sheet (12) in order to extend the residence time of the raw water, and the concentrated water flowing in the longitudinal direction of the reverse osmosis membrane sheet (12) is discharged through the opening of the other end;

(A portion between the first sheet 12b and the second sheet 12c forming the reverse osmosis membrane) of the bag-shaped reverse osmosis membrane sheet 12 to secure a passage through which a fluid (referred to as concentrated water) flows (For example, a nonwoven fabric may be used) 13 for making the raw water flow into the raw water inlet network;

(For example, a nonwoven fabric not shown) may be used to secure a passage through which the purified water flows, which is formed between the outer surface of the bag-shaped reverse osmosis membrane sheet 12 ).

The assembly of the reverse osmosis membrane sheet includes a filter housing (14) for receiving the reverse osmosis membrane sheet (12).

A raw water inlet 16 connected to an upper end of the assembly of the reverse osmosis membrane sheet and flowing raw water from the outside through a connector (not shown), and a purified water discharge port And a channel switching guide 19 formed with a concentrated water outlet 18 through which the concentrated water (referred to as waste water) filtered by the reverse osmosis membrane sheet 12 flows and is discharged toward the connector.

The reverse osmosis membrane module according to any one of claims 1 to 3, further comprising: a reverse osmosis membrane module (12) And the purified water discharged from the reverse osmosis membrane sheet 12 to the flow path guide 19 side is supplied to the reverse osmosis membrane sheet 12 through the flow path switching guide 19, An upper holder 20 for preventing mixing;

A lower holder 21 mounted at a lower end of the reverse osmosis membrane sheet 12 to prevent mutual mixing of purified water discharged from the reverse osmosis membrane sheet 12 and purified water treated by the reverse osmosis membrane sheet 12; .

The reverse osmosis membrane sheet (12)

The raw water discharged from the central pipe 11 through the through hole 10 is guided to flow in the longitudinal direction of the reverse osmosis membrane sheet 12 from the outside of the reverse osmosis membrane sheet 12 having a cross-

The concentrated water filtered by the reverse osmosis membrane sheet 12 may be guided to flow in the longitudinal direction of the reverse osmosis membrane sheet 12 from the inside of the reverse osmosis membrane sheet 12 having a cross section.

The reverse osmosis membrane sheet (12)

One end fixed to the central pipe 11 is formed to be closed,

The concentrated water is formed to clog the upper and lower ends so as to flow in the longitudinal direction of the reverse osmosis membrane sheet 12 from the inside of the reverse osmosis membrane sheet 12,

The reverse osmosis membrane sheet 12 may be formed into a bag shape so that three sides thereof are closed when the reverse osmosis membrane sheet 12 is deployed (the shape of the bag-shaped reverse osmosis membrane sheet 12, The bottom surface is sealed).

The reverse osmosis membrane sheet (12)

The reverse osmosis membrane module according to the present invention comprises a reverse osmosis membrane module including a reverse osmosis membrane module including a reverse osmosis membrane module including a reverse osmosis membrane module, The purified water passing through the sheet 12b and the amide surface (not shown) formed opposite to the inner surface of the second sheet 12c is discharged to the outside (the first sheet 12b constituting the bag-shaped reverse osmosis membrane sheet 12 ) And the inward flow of water from the outside of the second sheet 12c is impossible due to the nature of the RO filter structure (pressure of the purified water "pressure of concentrated water)

The concentrated water that has not passed through the amide surfaces of the first sheet 12b and the second sheet 12c is moved in the longitudinal direction from the inside of the bag-shaped reverse osmosis membrane sheet 12 and discharged through the one opening 12a As shown in FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a reverse osmosis membrane sheet assembly according to a preferred embodiment of the present invention and use of a reverse osmosis membrane filter for accommodating the same will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 3 (a) and 3 (b), raw water supplied from a raw water supply source (tap water, ground water, etc.) is connected to a connector (not shown) detachably connected to the opening of the filter housing 14 Flows into the raw water inlet 16 of the flow path switching guide 19 and flows into the filter housing 15.

The raw water passing through the raw water inlet 16 flows into the upper end of the central pipe 11 through the inner through hole of the upper holder 20 made of a double cylinder.

The raw water flowing into the upper end of the central pipe 11 is moved in the vertical direction in the drawing. The raw water flowing into the central pipe 11 passes through the through hole 10 formed in the central pipe 11 in the radial direction and is discharged to the reverse osmosis membrane sheet 12 side.

The raw water moved inside the bag-shaped reverse osmosis membrane sheet 12 flows in the longitudinal direction of the reverse osmosis membrane sheet 12 in the form of a bag wound around the central pipe 11 while being in contact with the membrane surface of the reverse osmosis membrane sheet 12 (Denoted by "a" in the direction of arrow in FIG. 2).

That is, when raw water passes through the first sheet 12b constituting the reverse osmosis membrane sheet 12 and the amide surface formed on the inner surface of the second sheet 12c and is discharged to the outside, the purified water filtered by the foreign material passes through the reverse osmosis membrane sheet 12 (Indicated by the arrow "b" in the direction of the arrow in Fig. 2B). The purified water flows along the reverse osmosis membrane sheet 12 in the upward direction in the drawing and passes through the outer through hole of the upper holder 20 made of a double cylinder, And is discharged from the reverse osmosis membrane filter 15 through the purified water discharge hole 17 and the connector (not shown).

At this time, raw water in contact with the membrane surface of the reverse osmosis membrane sheet 12 flows in the longitudinal direction of the bag-shaped reverse osmosis membrane sheet 12, so that the residence time of the raw water in the reverse osmosis membrane sheet 12 is increased. That is, the overall length of the bag-shaped reverse osmosis membrane sheet 12 in the longitudinal direction serves as a passage for moving the raw water.

Accordingly, the recovery rate of the purified water filtered by the reverse osmosis membrane sheet 12 is increased and the amount of concentrated water can be reduced.

The condensed water flowing in the longitudinal direction of the reverse osmosis membrane sheet 12 from the inside of the reverse osmosis membrane sheet 12 is discharged through the opening 12a at the other end of the reverse osmosis membrane sheet 12 Quot;). The concentrated water discharged from the reverse osmosis membrane sheet 12 moves upward in the drawing along the passage 14a between the reverse osmosis membrane sheet 12 and the filter housing 14. [ The concentrated water moved toward the opening of the filter housing 14 passes through the concentrated water outlet 18 and the connector (not shown) of the flow path switching guide 19 and is discharged from the reverse osmosis membrane filter 15.

At this time, the purified water discharged through the upper end of the reverse osmosis membrane sheet 12 by the upper holder 20 mounted between the upper end of the reverse osmosis membrane sheet 12 and the lower end of the channel switching guide 19, The concentrated water discharged from the openings 12a of the seat 12 and then moved upwards along the passage 14a between the reverse osmosis membrane sheet 12 and the filter housing 14 to the concentrated water outlet 18, Can be prevented from being mixed with each other.

At the same time, the raw water flowing into the central pipe 11 through the channel switching guide 19 by the upper holder 20 and the purified water discharged through the upper end of the reverse osmosis membrane sheet 12 are mixed with each other .

The reverse osmosis membrane module according to an embodiment of the present invention includes a reverse osmosis membrane module including a reverse osmosis membrane module and a reverse osmosis membrane module. It is possible to prevent the concentrated water from being mixed with each other.

4 is a cross-sectional view illustrating a nipple type filter housing in a reverse osmosis membrane sheet assembly and a reverse osmosis membrane filter for accommodating the same according to an embodiment of the present invention.

A reverse osmosis membrane sheet (12) for separating the raw water into purified water and concentrated water and a reverse osmosis membrane membrane sheet (12) provided between the reverse osmosis membrane membrane sheet (12) The reverse osmosis membrane filter 15 having the feed screen 13 is the same as that of the reverse osmosis membrane filter shown in Figs. 3 (a) and (b), and therefore its detailed description is omitted.

The filter housing 14, which houses the reverse osmosis membrane sheet 12,

A raw water inflow nipple (d) formed at one end of the filter housing (14) to introduce raw water into the central pipe (11);

A purified water discharge nipple (e) formed at one end of the filter housing (14) adjacent to the raw water inlet nipple (d) and discharging purified water purified by the reverse osmosis membrane sheet (12);

And a concentrated water discharging nipple f formed at the other end of the filter housing 14 and discharging the concentrated water filtered by the reverse osmosis membrane sheet 12.

The reverse osmosis membrane sheet (12)

The reverse osmosis membrane sheet 12 is prevented from being mixed with the purified water discharged from the reverse osmosis membrane sheet 12 to the purified water discharge nipple e and the concentrated water discharged from the reverse osmosis membrane sheet 12, An upper holder 20;

The reverse osmosis membrane module according to any one of the preceding claims, wherein the reverse osmosis membrane sheet (12) is installed at a lower end thereof, And a lower holder (21) for preventing the lower holder (21).

Therefore, the raw water such as tap water flowing through the raw water inflowing nipple (d) flows into the upper end of the central pipe (11) and is moved downward, and the through hole (10) formed in the central pipe (11) And is then transferred to the reverse osmosis membrane sheet 12.

The purified water purified by the reverse osmosis membrane sheet 12 passes through the upper holder 20 and is discharged to the outside of the reverse osmosis membrane filter 15 through the nipple for discharging purified water e.

The reverse osmosis membrane module according to the present invention is characterized in that the reverse osmosis membrane module comprises a reverse osmosis membrane module including a reverse osmosis membrane module, Are prevented from mixing with each other.

The concentrated water filtered by the reverse osmosis membrane sheet 12 is discharged from the reverse osmosis membrane sheet 12 through the opening formed at the other end of the reverse osmosis membrane sheet 12 and the concentrated water discharged from the reverse osmosis membrane sheet 12 flows through the reverse osmosis membrane sheet 12 And is moved in the vertical direction along the passage 14a between the filter housings 14. [

The concentrated water moved downward along the passage 14a is discharged to the outside of the reverse osmosis membrane filter 15 through the concentrated water discharge nipple f.

At this time, the purified water purified by the reverse osmosis membrane sheet 12 and the concentrated water discharged from the reverse osmosis membrane sheet 12 to the nipple for discharging the concentrated water f are prevented from mixing with each other.

10; Through-hole
11; Central pipe
12; Reverse osmosis membrane sheet
13; Raw water inflow network
14; Filter housing
15; Reverse osmosis membrane filter
16; Raw water inlet
17; Water outlet
18; Concentrated water outlet
19; Euro conversion guide
20; Upper holder
21; Lower holder

Claims (9)

A central pipe through which a through hole is formed in a radial direction and into which raw water flows;
A reverse osmosis membrane sheet in the shape of a bag for filtering foreign substances contained in raw water which is wound around the central pipe and is discharged through the through hole, wherein the reverse osmosis membrane sheet comprises a reverse osmosis membrane sheet, And the concentrated water flowing in the longitudinal direction of the reverse osmosis membrane sheet is discharged through the open end of the other end;
A raw water inflow network provided between inner side surfaces of the bag-shaped reverse osmosis membrane sheet to secure a passage through which raw water flows;
And a purified water line provided between outer surfaces of the bag-shaped reverse osmosis membrane sheet for securing a passage through which purified water flows. 2. The method of claim 1, wherein the reverse osmosis membrane sheet
The reverse osmosis membrane module according to any one of the preceding claims, wherein the reverse osmosis membrane module comprises a reverse osmosis membrane module The purified water passing through the amide surface is discharged to the outside,
Wherein the concentrated water that has not passed through the amide surface is formed so as to be moved in the longitudinal direction from the inside of the bag-shaped reverse osmosis membrane sheet and to be discharged through one opening of the reverse osmosis membrane sheet. 2. The method of claim 1, wherein the reverse osmosis membrane sheet
Wherein the raw water discharged through the through holes is guided so as to flow in the longitudinal direction of the reverse osmosis membrane sheet from the outside of the reverse osmosis membrane sheet having a cross-
And the concentrated water filtered by the reverse osmosis membrane sheet is guided so as to flow in the longitudinal direction of the reverse osmosis membrane sheet from the inside of the reverse osmosis membrane sheet having a cross section in the shape of a bag. 2. The method of claim 1, wherein the reverse osmosis membrane sheet
One end fixed to the central pipe is formed to be closed,
The concentrated water is formed so that the upper end and the lower end are clogged so as to flow in the longitudinal direction of the reverse osmosis membrane sheet from the inside of the reverse osmosis membrane sheet,
Wherein the reverse osmosis membrane sheet is formed so that the other end to which the concentrated water is discharged is opened so that three sides are closed when the reverse osmosis membrane sheet is deployed. A central pipe through which a through hole is formed in a radial direction and into which raw water flows;
A reverse osmosis membrane sheet in the shape of a bag for filtering foreign substances contained in raw water which is wound around the central pipe and is discharged through the through hole, wherein the reverse osmosis membrane sheet comprises a reverse osmosis membrane sheet, And the concentrated water flowing in the longitudinal direction of the reverse osmosis membrane sheet is discharged through the open end of the other end;
A raw water inflow network provided between inner side surfaces of the bag-shaped reverse osmosis membrane sheet to secure a passage through which raw water flows;
A reverse osmosis network provided between outer surfaces of the bag-shaped reverse osmosis membrane sheet to secure a passage through which purified water flows;
And a filter housing accommodating the reverse osmosis membrane sheet. 6. The method of claim 5,
A reverse osmosis membrane sheet assembly including a raw water inlet to which the raw water flows, a purified water discharge port through which purified water flowing from the reverse osmosis membrane sheet is discharged, and a concentrated water discharge port through which the concentrated water filtered by the reverse osmosis membrane sheet is discharged And a reverse flow path guide provided on the reverse osmosis membrane filter. The method according to claim 6,
The reverse osmosis membrane sheet is installed between the upper end of the reverse osmosis membrane sheet and the lower end of the passage switching guide to prevent mutual mixing of the purified water discharged from the reverse osmosis membrane sheet and the concentrated water moved from the reverse osmosis membrane sheet to the concentrated water discharge port, An upper holder for preventing mutual mixing of the incoming raw water and the purified water discharged from the reverse osmosis membrane sheet;
And a lower holder installed at a lower end of the reverse osmosis membrane sheet to prevent mutual mixing of the purified water discharged from the reverse osmosis membrane sheet and purified water treated by the reverse osmosis membrane sheet. 6. The filter of claim 5, wherein the filter housing
A raw water inflow nipple formed at one end of the filter housing for introducing raw water into the central pipe;
A purified water discharge nipple formed at one end of the filter housing to discharge purified water purified by the reverse osmosis membrane sheet;
And a concentrated water discharge nipple formed at the other end of the filter housing to discharge concentrated water filtered by the reverse osmosis membrane sheet. 9. The method of claim 8,
An upper holder installed at an upper end of the reverse osmosis membrane sheet to prevent mutual mixing of the purified water discharged from the reverse osmosis membrane sheet to the purified water discharge nipple and the concentrated water discharged from the reverse osmosis membrane sheet;
And a lower holder mounted at a lower end of the reverse osmosis membrane sheet to prevent mutual mixing of the purified water purified by the reverse osmosis membrane sheet and the concentrated water discharged from the reverse osmosis membrane sheet to the nip for discharging the concentrated water. Reverse osmosis membrane filter.
KR1020150043520A 2015-03-13 2015-03-27 assembly of RO sheet and RO filter KR101741775B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20150035089 2015-03-13
KR1020150035089 2015-03-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020088560A1 (en) * 2018-10-31 2020-05-07 佛山市顺德区美的饮水机制造有限公司 Ro filter element assembly, composite filter element having same, and water treatment device
WO2020191557A1 (en) * 2019-03-22 2020-10-01 溢泰（南京）环保科技有限公司 Flow guide mesh, membrane element, and filter assembly
WO2023246741A1 (en) * 2022-06-21 2023-12-28 杭州苏博瑞驰科技有限公司 Raw-water partial flow guide membrane element and filter element

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5762789A (en) * 1996-06-28 1998-06-09 Millipore Corporation Disposable membrane module with low-dead volume
JP3282535B2 (en) * 1997-04-01 2002-05-13 栗田工業株式会社 Spiral type membrane module, bag-like membrane and membrane separation method
KR200456628Y1 (en) * 2009-08-17 2011-11-10 주식회사 피코그램 structure for purify filter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020088560A1 (en) * 2018-10-31 2020-05-07 佛山市顺德区美的饮水机制造有限公司 Ro filter element assembly, composite filter element having same, and water treatment device
WO2020191557A1 (en) * 2019-03-22 2020-10-01 溢泰（南京）环保科技有限公司 Flow guide mesh, membrane element, and filter assembly
US11938430B2 (en) 2019-03-22 2024-03-26 Kemflo (Nanjing) Environmental Technology Co., Ltd. Flow guide mesh, membrane element, and filter assembly
WO2023246741A1 (en) * 2022-06-21 2023-12-28 杭州苏博瑞驰科技有限公司 Raw-water partial flow guide membrane element and filter element

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