CN111867700A - Integrated composite filter module for water purifier - Google Patents
Integrated composite filter module for water purifier Download PDFInfo
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- CN111867700A CN111867700A CN201980020279.0A CN201980020279A CN111867700A CN 111867700 A CN111867700 A CN 111867700A CN 201980020279 A CN201980020279 A CN 201980020279A CN 111867700 A CN111867700 A CN 111867700A
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- filter
- water
- water purifier
- reverse osmosis
- integrated composite
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 239000012528 membrane Substances 0.000 claims description 72
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 64
- 238000001223 reverse osmosis Methods 0.000 claims description 50
- 239000004952 Polyamide Substances 0.000 claims description 42
- 229920002647 polyamide Polymers 0.000 claims description 42
- 239000013049 sediment Substances 0.000 claims description 28
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 26
- 239000000460 chlorine Substances 0.000 claims description 26
- 229910052801 chlorine Inorganic materials 0.000 claims description 26
- 238000001914 filtration Methods 0.000 claims description 10
- 239000012466 permeate Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000003575 carbonaceous material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000008399 tap water Substances 0.000 description 5
- 235000020679 tap water Nutrition 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 4
- 241000700605 Viruses Species 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 231100001240 inorganic pollutant Toxicity 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- -1 suspended matter Substances 0.000 description 2
- 229920001897 terpolymer Polymers 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2055—Carbonaceous material
- B01D39/2058—Carbonaceous material the material being particulate
- B01D39/2062—Bonded, e.g. activated carbon blocks
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/10—Spiral-wound membrane modules
- B01D63/12—Spiral-wound membrane modules comprising multiple spiral-wound assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/56—Polyamides, e.g. polyester-amides
-
- 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
-
- 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 an integrated composite filter module for a water purifier, and more particularly, to an integrated composite filter module for a water purifier, which can remarkably reduce the volume of the water purifier while securing excellent salt removal rate and permeation flow rate.
Description
Technical Field
The present invention relates to an integrated composite filter module for a water purifier, and more particularly, to an integrated composite filter module for a water purifier, which can remarkably reduce the volume of a water purifier while securing excellent salt removal rate and permeation flow rate.
Background
With the development of purification and sewage treatment technologies, the direction of the treatment technologies is changing from the existing sand filtration mode to a membrane filtration mode using a separation membrane.
This separation membrane technology is a high-level separation technology for almost completely separating and removing substances to be treated present in treated water based on the pore size, pore distribution, and surface charge of the membrane.
The separation membranes are classified into microfiltration membranes (MF membranes), ultrafiltration membranes (UF membranes), nanofiltration membranes (NF membranes) and reverse osmosis membranes (RO membranes) according to the pore size, and their application range is expanded in the field of water treatment to production of high-quality drinking water and industrial water, down/waste water treatment and reuse, purification production processes related to development of non-discharge systems, and the like, and they are widely used as one of core technologies that have attracted attention in the 21 st century. In fact, most of the people drink the tap water supplied after the purification treatment by treating it again with a water purifier, and therefore, further development of the technology related thereto is required.
The water purifier system consists of a separation membrane module, a pre-treatment and post-treatment filter, a pump, a piping, a tank and other auxiliary devices, and the most important part of the elements forming the system is the separation membrane module. As the type of the separation membrane module, a flat plate type, a hollow fiber type, a tubular type, a spiral wound type, and the like are commercialized, and mainly, a spiral wound type separation membrane module which has a high insertion density of separation membranes per unit area and can remove ions in water is studied. Also, studies to simplify the water purifier system are actively being conducted recently.
The existing reverse osmosis water purifier structure comprises a water taking valve, a sediment filter, a preposed activated carbon filter, a booster pump, a polyamide composite membrane, a postposition activated carbon filter, a backflow prevention valve, a domestic water regulating valve, a purified water regulating valve and the like.
The sediment filter functions to remove relatively large impurities such as suspended matter, sand, rust residue, and moss from the raw water, and the pre-activated carbon filter removes volatile organic compounds such as agricultural chemical components and carcinogenic substances from the raw water, and as the most important function, removes residual chlorine by preventing the polyamide composite membrane at the rear end from being oxidized and decomposed by the residual chlorine. The polyamide composite membrane has the functions of filtering organic pollutants, inorganic pollutants, bacteria, viruses, ionic substances containing heavy metals and the like contained in raw water, and the post-positioned active carbon filter has the functions of removing gaseous substances contained in the raw water to remove water peculiar smell and improve the water taste.
The reverse osmosis water purifier filter composed of the conventional sediment filter, the pre-activated carbon filter, the polyamide composite membrane and the post-activated carbon filter is composed of 4 filters, so that it is difficult to use in a narrow space due to a large volume and to apply to an application requiring an ultra-thin design.
Further, it is difficult to determine the life span or replacement time of the filter, and the complexity of the filter (sediment filter, pre-activated carbon filter, polyamide composite membrane, post-activated carbon filter) installed in the filter part of the reverse osmosis water purifier, so that it is difficult for a user to replace the filter by himself/herself.
As a patent for solving these problems, korean laid-open patent publication No. 10-2004-0042180 relates to a simplified filter housing as described above, which minimizes the size of a sediment filter, a pre-activated carbon filter, a reverse osmosis separation membrane filter, a post-activated carbon filter, and a plurality of pipes connected to each other and accommodates them in one filter housing, thereby reducing the volume of a water purifier compared to the conventional water purifier and allowing consumers to easily replace the filters. The plurality of filters inserted into the filter housing make the exchange cycle uniform by adjusting the volume, so that the consumer can easily replace the filter housing itself. However, the sediment filter, the pre-carbon filter, the reverse osmosis filter, and the post-carbon filter inside the filter housing are composed of respective housings, and thus, there is a limitation in reducing the volume of the water purifier.
Disclosure of Invention
Technical problem
The present invention has been made in view of the above problems, and it is an object of the present invention to provide an integrated composite filter module for a water purifier, which can remarkably reduce the volume of the water purifier while securing excellent salt removal rate and permeate flow rate.
Another object of the present invention is to provide a water purifier including an integrated composite filter module, which is significantly small in size.
Technical scheme
In order to solve the above problems, the present invention provides an integrated composite filter module for a water purifier, the integrated composite filter module for a water purifier including: a first filter unit including an outer housing provided with an inflow port through which raw water flows, and a sediment filter provided in the outer housing; and a second filter unit disposed inside the first filter unit, for secondarily filtering water primarily filtered by the first filter unit, the second filter unit including: an inner housing provided with a produced water discharge port and a concentrated water discharge port; a polyamide reverse osmosis membrane module; and a rear activated carbon filter disposed at an inner side of the polyamide reverse osmosis membrane module.
According to an embodiment of the present invention, the polyamide reverse osmosis membrane module may be a chlorine-resistant polyamide reverse osmosis membrane module.
Further, according to an embodiment of the present invention, the raw water may move along a raw water flow path provided between an inner surface of the outer cover and an outer surface of the upper sediment filter, and the primarily filtered water may move along a permeate flow path provided between the inner surface of the sediment filter and the outer surface of the inner cover. Also, according to an embodiment of the present invention, the post-activated carbon filter may be in a form in which activated carbon is filled inside a central pipe (central pipe) of the polyamide reverse osmosis membrane module.
In one embodiment of the present invention, a sealing member having a predetermined thickness may be formed between the inner surface of the inner cover and the outer surface of the polyamide reverse osmosis membrane module.
Further, according to an embodiment of the present invention, the raw water permeate flow rate flowing in through the inlet may be 12.0GFD or more under the conditions of the residual chlorine concentration of 0.5ppm, the conductivity of 250. mu.S/cm and the pressure of 40psi at the normal temperature.
Further, according to an embodiment of the present invention, the sediment filter may include a carbon material for removing volatile organic substances in the raw water.
Also, according to an embodiment of the present invention, there is provided a water purifier including the integrated composite filter module for a water purifier.
ADVANTAGEOUS EFFECTS OF INVENTION
The integrated composite filter module for a water purifier according to the present invention has an effect of remarkably reducing the volume of the water purifier while securing excellent salt removal rate and permeation flux, and thus can be used in a narrow space.
Drawings
Fig. 1 is a sectional perspective view and an X-X' sectional view of an integrated composite filter module for a water purifier according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view of a polyamide reverse osmosis membrane module included in an integrated composite filter module for a water purifier according to an embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily practice the invention. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.
The integrated composite filter module 10 for a water purifier according to the present invention includes: a first filter unit including an outer cover 11 having an inflow port 19a through which raw water flows, and a sediment filter 13 disposed in the outer cover 11; a second filter unit disposed inside the first filter unit, for secondarily filtering water primarily filtered by the first filter unit, the second filter unit including: an inner housing 15 provided with a produced water discharge port 19b and a concentrated water discharge port 19 c; a polyamide reverse osmosis membrane module 17; and a rear activated carbon filter 18 disposed inside the polyamide reverse osmosis membrane module 17.
On the other hand, the polyamide reverse osmosis membrane module 17 may be a chlorine-resistant polyamide reverse osmosis membrane module, and more particularly, the present invention may provide an integrated composite filter module in which a chlorine-resistant polyamide reverse osmosis membrane module may be used to omit a pre-activated carbon filter, a second filter unit capable of simultaneously performing filtration by a reverse osmosis membrane and residual chlorine removal by a post-activated carbon filter may be provided in a first filter unit, and water filtered from the first filter unit may be directly moved to a space of the second filter unit, and preferably, water primarily filtered by the sediment filter may be directly flowed into the polyamide reverse osmosis membrane module through a permeate water flow path provided between an outer surface of the inner housing and an inner surface of the sediment filter, thereby integrating a plurality of water purifier filters, which are conventionally arranged in series, to remarkably reduce the volume of the water purifier, at the same time, excellent permeation flux and salt removal rate can be ensured.
The integrated composite filter module according to a preferred embodiment of the present invention will be described below with reference to fig. 1, which is a cross-sectional perspective view of the integrated composite filter module.
First, raw water, for example, tap water, is supplied through the inlet 19a of the external cover 11. The raw water flowing in through the inflow port 19a is moved through the raw water flow path 12 provided between the inner surface of the outer cover 11 and the outer surface of the sediment filter 13, and is continuously filtered through the sediment filter 13 for the first time.
The material of the outer cover may be any material commonly used for the outer cover of a filter for a water purifier in the technical field of the present invention, and the form of the outer cover may be changed into various forms according to the form of each structure included in the first filter unit and the second filter unit, and may be, for example, a circular tube form.
The sediment filter may be made of any material commonly used in the art for water purifiers, and may be in the form of a circular tube, but is not limited thereto. The sediment filter can remove floating matters, sand, rust residues, moss and other larger impurities in the water, and the sediment filter can contain carbon materials and is used for removing volatile organic compounds in the raw water. The carbon material may be a material for removing volatile organic substances in the art to which the present invention pertains, and may be activated carbon or activated carbon powder, for example, but is not limited thereto.
The primarily filtered water can move to the end of the inner cover 15 through the permeate flow path 14 provided between the outer surface of the inner cover 15 and the inner surface of the sediment filter 13, and can flow into the polyamide reverse osmosis membrane module 17 of the second filtration unit.
Further, since the sealing member 16 may be formed between the inner surface of the inner cover 15 and the polyamide reverse osmosis membrane module, the water primarily filtered by the sediment filter may be moved to the reverse osmosis membrane module of the second filtering part without loss.
The material of the inner cover may be the material commonly used for the cover of the reverse osmosis membrane module in the art to which the present invention pertains without limitation.
Preferably, the sealing member may be a brine seal (brine seal) of ethylene propylene terpolymer (ethylene propylene terpolymer) material, but is not limited thereto.
The chlorine-resistant polyamide reverse osmosis membrane module filters and removes organic pollutants, inorganic pollutants, bacteria, viruses, and ionic substances including heavy metals from raw water flowing in from the sediment filter. Further, since the durability against chlorine is high as compared with the conventional polyamide reverse osmosis membrane, a pre-activated carbon filter for removing residual chlorine components can be omitted, and water containing residual chlorine can be secondarily filtered through a center shrinkage tube provided in a chlorine-resistant polyamide reverse osmosis membrane module capable of removing a part of residual chlorine.
Preferably, the polyamide reverse osmosis membrane module may include an alkylated polyamide composite membrane that permeates residual chlorine of raw water by 20% or more, and may maintain a removal performance of at least 85% when the alkylated polyamide composite membrane passes a sodium hypochlorite solution having a concentration of 500ppm to 2000ppm for 1 hour to 24 hours. The trace amount of residual chlorine contained in the secondarily filtered water can remove microorganisms or viruses, etc. existing in the post-activated carbon filter, and at the same time, can remove gaseous substances, remove the peculiar smell of the water, and improve the taste of the water.
The shape of the polyamide reverse osmosis membrane module may be the structure of a reverse osmosis module generally used in the art to which the present invention pertains, and the reverse osmosis membrane module may be wound in a spiral winding type around a central contracted pipe together with spacers forming flow paths, and may include end caps for the shape stability of separation membranes wound around both ends of the wound membrane, as a non-limiting example.
Fig. two is an exploded perspective view of a polyamide reverse osmosis membrane module 20 included in the integrated composite filter module for a water purifier according to an embodiment of the present invention.
Referring to fig. 2, the polyamide reverse osmosis membrane 21 may be wound in a spiral winding type with a center contracted pipe 24 as a center, and between the wound polyamide reverse osmosis membrane 21, there may be provided: an outer spacer 23 functioning as a flow path for the first filtered water and performing a function of improving contact efficiency of the outer surface of the reverse osmosis membrane; and an inner spacer 22 for effectively moving water permeated from the reverse osmosis membrane toward a post-carbon filter 25 disposed in the central shrinkage tube 24.
The material and shape of the outer and inner spacers 23 and 22 may be the structure of the reverse osmosis membrane module known in the art to which the present invention pertains.
Tap water with a residual chlorine concentration of 0.5ppm and a conductivity of 250 [ mu ] S/cm, wherein when the raw water flows in under a pressure condition of 40psi, the raw water permeation flow rate can be more than 12.0 GFD.
Then, the water secondarily filtered by the reverse osmosis polyamide membrane module 17 is moved to the post-activated carbon filter 18, and the process water from which a small amount of residual chlorine is removed at the end of the post-activated carbon filter 18 is discharged through the process water discharge port 19b provided at the lower end of the inner housing 15. And, in the second filtered water, the concentrated water other than the produced water may be discharged through the concentrated water discharge port 19c provided at the lower end of the inner casing 15.
The post-activated carbon filter 18 may be in a form in which activated carbon is filled in the central contracted pipe of the polyamide reverse osmosis membrane module 17. The particle size and the packing ratio of the activated carbon can be determined by using a structure of a post-activated carbon filter which is generally used in the art to which the present invention pertains.
In the integrated composite filter module for a water purifier according to the present invention, the raw water may be introduced through the inlet at a permeate flow rate of 12.0GFD or more under the conditions of a residual chlorine concentration of 0.5ppm, a conductivity of 250 μ S/cm and a pressure of 40psi at normal temperature.
In another aspect, the present invention provides a water purifier including the integrated composite filter module for a water purifier of the present invention. In addition to the integrated composite filter module for a water purifier included in the water purifier of the present invention, a compact water purifier having a volume significantly smaller than that of the conventional water purifier can be embodied by using the integrated composite filter module for a water purifier of the present invention instead of the conventional in-line water purifier filter, using a known structure generally used in the art of the present invention for the body, the drain pipe, the drip tray, and the like.
Preparation example 1
Using a 1.8 inch diameter, 4.8ft active membrane area2The chlorine-resistant polyamide reverse osmosis membrane module is produced by using the chlorine-resistant polyamide membrane in the form of a spiral wound module.
Example 1
An integrated composite filter module was manufactured by filling activated carbon into the central contracted pipe in the chlorine-resistant polyamide reverse osmosis membrane module manufactured in preparation example 1, and combining the inner cover provided with the post-activated carbon filter in the reverse osmosis membrane module with the outer cover including the sediment filter.
Comparative example 1
The sediment filter, the chlorine-resistant polyamide reverse osmosis membrane module produced in preparation example 1, and the post-activated carbon filter were arranged in series, and the filters were connected to each other by a drain pipe to produce a filter module.
Experimental example 1
The volumes except for the piping of the filter modules manufactured in the examples and comparative examples were calculated and are presented in table 1 below.
[ TABLE 1 ]
| Distinguishing | Volume cm of the filter module3 |
| Example 1 | 1331 |
| Comparative example 1 | 2556 |
Referring to table 1 above, the filter module of comparative example 1 in which the sediment filter, the reverse osmosis membrane module, and the post-activated carbon filter were arranged in series had a volume of about 192% of the volume of the integrated composite filter module (example 1), and it was confirmed that the volume was significantly larger than that of the integrated composite filter module.
Experimental example 2
1) Salt removal rate
Using the filter modules manufactured in example 1 and comparative example 1, tap water having a residual chlorine concentration of 0.5ppm and a conductivity of 250. mu.S/cm in a normal temperature state was used as raw water and operated under a pressure condition of 40 psi. The above operation was performed for 60 days by stopping the 12-hour stroke after repeating the operation for 12 hours. Finally, the salt removal rate was determined and the results are presented in table 2 below.
[ TABLE 2 ]
Referring to table 2 above, it was confirmed that the integrated composite filter module of example 1 could have the same level of salt removal rate as that of comparative example 1 in which the respective filters were arranged in series even with a very small volume.
2) Measuring production flow
Using the filter modules manufactured in example 1 and comparative example 1, tap water having a residual chlorine concentration of 0.5ppm and a conductivity of 250. mu.S/cm in a normal temperature state was used as raw water and operated under a pressure condition of 40 psi. The above operation was performed for 60 days by stopping the 12-hour stroke after repeating the operation for 12 hours. Finally, the salt removal rate was determined and the results are presented in table 3 below.
[ TABLE 3 ]
Referring to table 3 above, it was confirmed that the integrated composite filter module of example 1 had a significantly higher level of 120% in initial product water flow rate and 60 days later product water flow rate even with a very small volume as compared with the module of comparative example 1 in which the respective filters were arranged in series. This is because, in the case where the filters are arranged in series, the flow rate of the process water is reduced due to the pressure loss occurring in the piping when the water discharged from the filters moves to the filter of the next step, and in the case where each filter is composed of the integrated composite filter module, the flow rate of the process water is reduced due to the pressure loss occurring in the piping is minimized, so that the flow rate of the process water can be increased.
While one embodiment of the present invention has been described above, the concept of the present invention is not limited to the embodiments proposed in the present specification, and a person having ordinary skill in the art to which the present invention pertains, understanding the concept of the present invention, can easily propose other embodiments by adding, changing, deleting, adding, or the like, components within the scope of the same concept, but the present invention also falls within the scope of the concept of the present invention.
Claims (8)
1. An integrated composite filter module for a water purifier, characterized in that,
the method comprises the following steps:
a first filter unit including an outer housing provided with an inflow port through which raw water flows, and a sediment filter provided in the outer housing; and
a second filtering part arranged at the inner side of the first filtering part for performing secondary filtering on the water primarily filtered by the first filtering part,
the second filter portion includes:
an inner housing provided with a produced water discharge port and a concentrated water discharge port;
a polyamide reverse osmosis membrane module; and
and the rear active carbon filter is arranged at the inner side of the polyamide reverse osmosis membrane module.
2. The integrated composite filter module for a water purifier according to claim 1, wherein the polyamide reverse osmosis membrane module is a chlorine-resistant polyamide reverse osmosis membrane module.
3. The integrated composite filter module for a water purifier as recited in claim 1, wherein the raw water moves along a raw water flow path provided between an inner surface of the outer housing and an outer surface of the upper sediment filter, and the primarily filtered water moves along a permeate flow path provided between the inner surface of the sediment filter and the outer surface of the inner housing.
4. The integrated composite filter module for a water purifier according to claim 1, wherein the post-activated carbon filter is in a form in which activated carbon is filled inside a central shrinkage tube of the polyamide reverse osmosis membrane module.
5. The integrated composite filter module for a water purifier according to claim 1, wherein a sealing member having a predetermined thickness is formed between an inner surface of the inner housing and an outer surface of the polyamide reverse osmosis membrane module.
6. The integrated composite filter module for water purifier as claimed in claim 1, wherein the permeate flow rate of raw water flowing through the inlet is 12.0GFD or more under the conditions of a residual chlorine concentration of 0.5ppm, a conductivity of 250 μ S/cm and a pressure of 40psi at normal temperature.
7. The integrated composite filter module for a water purifier according to claim 1, wherein the sediment filter comprises a carbon material for removing volatile organic substances in the raw water.
8. A water purifier comprising the integrated composite filter module for a water purifier according to any one of claims 1 to 7.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2018-0162014 | 2018-12-14 | ||
| KR1020180162014A KR20200073633A (en) | 2018-12-14 | 2018-12-14 | Interated type complex filter module for separating water purifier |
| PCT/KR2019/017611 WO2020122642A1 (en) | 2018-12-14 | 2019-12-12 | Integrated composite filter module for water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111867700A true CN111867700A (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980020279.0A Pending CN111867700A (en) | 2018-12-14 | 2019-12-12 | Integrated composite filter module for water purifier |
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| Country | Link |
|---|---|
| KR (1) | KR20200073633A (en) |
| CN (1) | CN111867700A (en) |
| WO (1) | WO2020122642A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022126602A1 (en) * | 2020-12-18 | 2022-06-23 | 佛山市顺德区美的饮水机制造有限公司 | Drainage waterway board and water production device |
| WO2023008809A1 (en) * | 2021-07-28 | 2023-02-02 | 코웨이 주식회사 | Water purifier having composite filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201320422Y (en) * | 2008-12-04 | 2009-10-07 | 宁波灏钻科技有限公司 | Rear sterilizing filter element |
| CN101734808A (en) * | 2008-11-11 | 2010-06-16 | 熊津化学有限公司 | Reverse osmosis water purifier having simple filter configuration |
| CN102026712A (en) * | 2008-05-15 | 2011-04-20 | 熊津豪威株式会社 | Spiral wound type filter cartridge |
| CN202705130U (en) * | 2012-07-06 | 2013-01-30 | 慈溪市润鑫电器有限公司 | Combined type filter element of water purifier |
| KR20170052711A (en) * | 2015-11-03 | 2017-05-15 | 금오공과대학교 산학협력단 | Hybrid forward osmosis membrane for seawater desalination, Filter containing the same, and Forward osmosis type seawater desalination system using the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100494593B1 (en) | 2002-11-13 | 2005-06-13 | 웅진코웨이주식회사 | Reverse osmotic water purifier having filter housing of unity type |
| KR101869799B1 (en) * | 2016-11-30 | 2018-07-20 | 금오공과대학교 산학협력단 | manufacturing method of forward osmosis filter using carbon nano-material |
-
2018
- 2018-12-14 KR KR1020180162014A patent/KR20200073633A/en not_active Application Discontinuation
-
2019
- 2019-12-12 WO PCT/KR2019/017611 patent/WO2020122642A1/en active Application Filing
- 2019-12-12 CN CN201980020279.0A patent/CN111867700A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102026712A (en) * | 2008-05-15 | 2011-04-20 | 熊津豪威株式会社 | Spiral wound type filter cartridge |
| CN101734808A (en) * | 2008-11-11 | 2010-06-16 | 熊津化学有限公司 | Reverse osmosis water purifier having simple filter configuration |
| CN201320422Y (en) * | 2008-12-04 | 2009-10-07 | 宁波灏钻科技有限公司 | Rear sterilizing filter element |
| CN202705130U (en) * | 2012-07-06 | 2013-01-30 | 慈溪市润鑫电器有限公司 | Combined type filter element of water purifier |
| KR20170052711A (en) * | 2015-11-03 | 2017-05-15 | 금오공과대학교 산학협력단 | Hybrid forward osmosis membrane for seawater desalination, Filter containing the same, and Forward osmosis type seawater desalination system using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020122642A1 (en) | 2020-06-18 |
| KR20200073633A (en) | 2020-06-24 |
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