KR20120011562A - Immersion type hollow fiber membrane filter device and water purifier including the same - Google Patents

Abstract

An exemplary embodiment of the present invention provides an immersion hollow fiber membrane filter device. The submerged hollow fiber membrane filter device is, i) a filter case connected to a filter including a post carbon filter, one end of which is opened and the other end of which is closed, and ii) the inside of the filter case, and the hollow fiber bundle is reversed. It includes a hollow fiber membrane module that is folded in the U-shape and integrated both ends into one at the open end side of the filter case, the hollow fiber bundle inside the purified water tank for storing purified water through the filter and the hollow fiber membrane module Both ends of the structure is immersed in the purified water through the open end of the filter case.

Description

Submerged hollow fiber membrane filter device and water purifier including the same {ULTRA FILTRATION FILTER DEVICE AND WATER PURIFIER OF THE SAME}

An exemplary embodiment of the present invention relates to a hollow fiber membrane type water purifier, and more particularly, to an immersion type hollow fiber membrane filter device that can be employed in the water purifier.

In general, a water purifier is a device for purifying raw water such as tap water or weak water, and removes heavy metals or other harmful substances contained in raw water through processes such as precipitation, filtration, and sterilization to remove drinking water containing only substances beneficial to the human body. It is a device to provide.

The water purification method used in such a water purifier can be largely classified into a filtration, distillation, ion exchange resin, and hollow fiber membrane method, and such a water purifier includes various filters to purify raw water.

Among these, the hollow fiber membrane type water purifier is, for example, a pre-carbon filter, a post carbon filter, and a hollow fiber membrane filter (commonly known as "UF filter" in the art) to remove various foreign substances and contaminants in raw water. The hollow fiber membrane filter may include a structure in which a plurality of hollow fiber bundles that are thin and hollow like threads are embedded inside the filter case.

Therefore, in the prior art, raw water is supplied to a pre-carbon filter and a post-carbon filter to remove various foreign substances and contaminants in the raw water through these filters, and relatively small particles of contaminants in the water and posts are contained in the water through the hollow fiber membrane filter. The dust is discharged through the carbon filter.

The purified water purified through the filters is stored in the purified water tank and provided to the user through the intake coke.

However, in the prior art, the purified water passing through the hollow fiber membrane filter may be stagnated at the rear end of the hollow fiber bundle without directly flowing into the water purification tank.

For this reason, the related art has a problem that microorganisms are re-grown in stagnant purified water of the hollow fiber bundles and flow into the purified water tank.

Exemplary embodiments of the present invention have been created to improve the problems as described above, immersed hollow fiber membrane filter device and a water purifier including the same to prevent the re-proliferation of microorganisms due to the stagnant water purification of the rear end of the hollow fiber membrane to provide.

To this end, the submerged hollow fiber membrane filter device according to an exemplary embodiment of the present invention includes: (i) a filter case connected to filters including a post carbon filter, one end of which is open and the other end of which is closed, and ii) of the filter case. It is configured inside, and includes a hollow fiber membrane module formed by folding the hollow fiber bundle in an inverted U-shape, both ends are integrated into one at the open end side of the filter case, and stores purified water through the filter and the hollow fiber membrane module Both ends of the hollow fiber bundles are immersed in the purified water through the open end of the filter case in the water purification tank.

In the submerged hollow fiber membrane filter device, the filter case may be an open end of the water purification tank is immersed in the purified water.

In the immersion type hollow fiber membrane filter device, the hollow fiber membrane module is fixed to the open end of the filter case through a fixing member inside the filter case, both ends of the hollow fiber bundle can be bonded to the fixing member. .

In addition, the water purifier according to the exemplary embodiment of the present invention, i) a filter containing a post carbon filter to remove foreign substances in raw water, ii) a hollow fiber membrane filter device connected to the post carbon filter, iii) the hollow Comprising a desert filter device therein, and through the filter and the hollow fiber membrane filter device includes a purified water tank for storing purified water, wherein the hollow fiber membrane filter device, the filter case of the open form to one side, and the filter case It is composed inside of.

In the water purifier, in the hollow fiber membrane filter device, the open end of the filter case may be submerged in purified water inside the water purification tank.

In the water purifier, the hollow fiber membrane module may be immersed in the purified water through the open end of the filter case in the water purification tank.

In the water purifier, the hollow fiber membrane module is fixed to the open end of the filter case through a fixing member, by folding the hollow fiber bundle in an inverted U-shape can be made by bonding both ends to the fixing member.

In the water purifier, in the hollow fiber membrane module, the fixing member may be immersed in the purified water through the open end of the filter case in the water purification tank.

In the water purifier, the hollow fiber membrane filter device may be connected to the post carbon filter through a water purification line.

In the water purifier, a pressure pump for pressurizing the water supplied to the hollow fiber membrane filter device may be installed in the water purification line.

According to an exemplary embodiment of the present invention, since the lower end portion of the hollow fiber membrane module is immersed in the purified water inside the purified water tank through the open end of the filter case, the purified water flowing out through the hollow fiber membrane module does not stagnate but is directly May spill into the interior.

Therefore, in the present embodiment, it is possible to suppress the regrowth of the microorganisms due to the stagnant water purification of the hollow fiber membrane, and as a result, it is possible to prevent the microorganisms from flowing into the purified water tank.

These drawings are for the purpose of describing an exemplary embodiment of the present invention, and therefore the technical idea of the present invention should not be construed as being limited to the accompanying drawings.
1 is a block diagram schematically illustrating a configuration of a water purifier according to an exemplary embodiment of the present invention.
2 is a schematic cross-sectional view of an immersion hollow fiber membrane filter device according to an exemplary embodiment of the present invention.
3 is a bottom configuration diagram of FIG. 2.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification.

In addition, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to those shown in the drawings, and is shown by enlarging the thickness in order to clearly express various parts and regions. It was.

1 is a block diagram schematically illustrating a configuration of a water purifier according to an exemplary embodiment of the present invention.

Referring to the drawings, an exemplary embodiment of the present invention purifies raw water as purified water, such as tap water, natural water, etc., through various filters, and stores the purified water in a separate storage space, and then removes the intake coke. It provides a water purifier 100 that can be discharged to the outside through.

The water purifier 100 is configured as a water purifier of the hollow fiber membrane method to filter the raw water through a filter and the hollow fiber membrane, which will be described later, to remove foreign substances such as heavy metals and other harmful substances.

The water purifier 100 according to the present embodiment is configured to suppress the growth of microorganisms due to stagnation of the purified water of the hollow fiber membranes by allowing the purified water passing through the hollow fiber membranes to flow directly into the storage space of purified water instead of stagnating the hollow fiber membranes. Is done.

That is, the water purifier 100 is made of a structure that can prevent the microorganisms re-proliferate in the water accumulated in the hollow fiber membrane to be introduced into the storage space of the purified water.

The water purifier 100 according to an exemplary embodiment of the present invention for this purpose basically comprises a filter 10, an immersion type hollow fiber membrane filter device 30, and a water purification tank 70, by configuration The explanation is as follows.

In the above description, the filter 10 is for removing various impurities in the raw water supplied from the raw water supply unit 1. In this embodiment, the pre-carbon filter 11 and the post carbon filter 13 are exemplified.

In this case, the pre-carbon filter 11 removes chemical substances and chlorine harmful to the human body such as volatile organic compounds, carcinogens, synthetic detergents, and insecticides by adsorption of activated carbon, and the post carbon filter 13 As an adsorption method, unpleasant taste, smell, pigment, etc. of water are adsorbed and removed.

In the present embodiment, the submerged hollow fiber membrane filter device 30 is a relatively small particulate contaminant (fine powder) discharged from the post carbon filter 13 at the rear end of the filters 10, that is, at the rear end of the post carbon filter 13. Jin) to remove through the hollow fiber membrane.

Here, the submerged hollow fiber membrane filter device 30 may be connected to the post carbon filter 13 of the filters 10 through a purified water line 21 such as a pipeline.

The detailed configuration of the immersion hollow fiber membrane filter device 30 will be described in more detail later with reference to FIG. 2.

In the above, the purified water tank 70 passes through the immersion hollow fiber membrane filter device 30 to store purified water from which contaminants have been removed, and a water intake coke for selectively discharging the purified water (not shown). Equipped with.

2 is a schematic cross-sectional view of an immersion hollow fiber membrane filter device according to an exemplary embodiment of the present invention, and FIG. 3 is a bottom view of FIG.

Referring to the drawings, the immersed hollow fiber membrane filter device 30 according to an exemplary embodiment of the present invention may include a filter case 31 and a hollow fiber membrane module 41.

In the present embodiment, the filter case 31 may be connected to the post carbon filter 13 of the filters 10 through the purified water line 21 mentioned above.

The filter case 31 is configured in the interior of the water purification tank 70, and as shown in the drawings, is formed as a cylindrical body forming an inner space in which the upper end is closed and the lower end is open.

Of course, in the present invention, the filter case 31 is not particularly limited to a cylindrical shape, and a polygonal cylinder having a space therein may be adopted.

In this case, in this embodiment, the upper end of the filter case 31 may be defined as the closed end 32a and the lower end may be defined as the open end 32b based on the drawings.

Here, it will be appreciated that the filter case 31 may be fixedly mounted on the inner wall surface of the water purification tank 70, preferably the inner upper surface side, through a separate mounting means (not shown in the drawing). .

At the closed end 32a of the filter case 31, an inlet 33 is formed to allow water supplied from the post carbon filter 13 to flow into the inner space of the filter case 31.

A water purification line 21 is connected to the inflow portion 33, and water supplied from the post carbon filter 13 through the water purification line 21 passes through the inflow portion 33 to the inside of the filter case 31. Can enter the space.

In the present embodiment, the hollow fiber membrane module 41 is formed of contaminants in purified water introduced into the filter case 31 through the post carbon filter 13 and relatively small particles discharged from the post carbon filter 13. It is to remove fine dust.

The hollow fiber membrane module 41 is configured inside the filter case 31 and may be connected to the post carbon filter 13 through the purified water line 21 mentioned above.

The hollow fiber membrane module 41 is formed as a U-shaped hollow fiber module in which a plurality of hollow fiber bundles 42 long and hollow like threads are folded in a U-shape to integrate both ends into one.

In the present embodiment, the hollow fiber membrane module 41 may be formed by folding the hollow fiber bundle 42 in an inverted U-shape to integrate both ends (lower ends) into one at the open end 32b side of the filter case 31. have.

Here, the hollow fiber membrane module 41 is fixed to the open end 32b side in the filter case 31 through a fixing member 43 such as an epoxy resin bar, both ends of the hollow fiber bundle 42 It is made of a configuration bonded to the fixing member 43 at the open end (32b) side of the filter case (31).

That is, the fixing member 43 is bonded to both end portions of the hollow fiber bundle 42 at the open end 32b side of the filter case 31, so that the water purification line 21 is removed from the post carbon filter 13. Through the inside of the filter case 31 while flowing through the hollow fiber bundle 42 is made as an outlet for outflow to the inside of the water purification tank (70).

On the other hand, the immersion hollow fiber membrane filter device 30 configured as described above is preferably configured such that the open end 32b of the filter case 31 can be immersed in purified water inside the clean water tank (70).

Accordingly, in the hollow fiber membrane module 41 configured inside the filter case 31, the fixing member 43 fixing both end portions of the hollow fiber bundle 42 to the open end 32b of the filter case 31. Can be immersed in purified water.

On the other hand, in the water purifier 100 according to the present embodiment, the water passing through the filters 10 by the raw water pressure supplied from the raw water supply unit 1 passes through the hollow fiber membrane module 41 and the inside of the purified water tank 70. May be spilled.

However, the present embodiment may further include a pressure pump 90 for pressurizing the water with the pumping pressure and pumping the water to the immersion hollow fiber membrane filter device 30 to improve the water purification speed of the water purifier 100 as an alternative.

The pressure pump 90 may be installed in the water purification line 21 connecting the filters 10 and the immersion hollow fiber membrane filter device 30.

The pressure pump 90 may include a booster pump having an inlet and an outlet of water and installed in the purified water line 21.

Since the pressurized pump 90 is made of a booster pump of a known technique commonly used in the art, a detailed description of the configuration will be omitted herein.

Hereinafter, the operation of the water purifier 100 according to the exemplary embodiment of the present invention configured as described above will be described in detail with reference to the drawings disclosed above.

First, referring to FIG. 1, in the present embodiment, raw water supplied from the raw water supply unit 1 is supplied to the filters 10, in which the pre-carbon filter 11 and the post carbon filter 13 are connected. By removing various contaminants contained in raw water.

Here, the pre-carbon filter 11 adsorbs and removes chlorine components and chemical substances harmful to the human body, such as volatile organic compounds, carcinogens, synthetic detergents, insecticides, and the like, and the post carbon filter 13 is formed of activated carbon. As an adsorption method, unpleasant taste, smell, pigment, etc. of water are adsorbed and removed.

Then, water (raw water) passing through the post carbon filter 13 of the filter stream 10 is supplied to the immersion hollow fiber membrane filter device 30 inside the purified water tank 70 through the purified water line 21.

In this case, in this embodiment, in order to improve the water purification speed of the water purifier 100, water may be pressurized as the pumping pressure and fed to the immersion hollow fiber membrane filter device 30.

2 and 3, in the process, water is introduced into the internal space through the inlet portion 33 of the filter case 31 and passes through the hollow fiber bundle 42 of the hollow fiber membrane module 41. .

Then, the hollow fiber bundle 42 of the hollow fiber membrane module 41 removes the relatively small particles of contaminants contained in the water and fine dust discharged from the post carbon filter 13.

The purified water passing through the hollow fiber bundle 42 of the hollow fiber membrane module 41 is discharged into the water purification tank 70. The immersion type hollow fiber membrane filter device 30 according to the present embodiment is a hollow fiber membrane module 41. ), That is, the fixing member 43 is immersed in the purified water inside the purified water tank 70 through the open end 32b of the filter case 31, so that the hollow fiber bundle of the hollow fiber membrane module 41 The purified water passed through 42 may not flow to the inside of the purified water tank 70 directly through the fixing member 43.

Therefore, in this embodiment, it is possible to suppress the regrowth of microorganisms due to the stagnant water purification of the hollow fiber membrane, and as a result, it is possible to prevent the microorganisms from flowing into the purified water tank (70).

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

One… Raw water supply unit 10.. Filters
11 ... Pre-carbon filter 13... Post carbon filter
21 ... Water purification line 30... Immersion type hollow fiber membrane filter device
31... Filter case 32a.. Closed
32b... Open end 41.. Hollow fiber membrane module
42 ... Hollow fiber bundle 43... Fixed member
70 ... Water purification tank 90... Pressurized pump

Claims (9)

A filter case connected to filters including a post carbon filter, one end of which is open and the other end of which is closed; And
The hollow fiber membrane module is formed inside the filter case, and the hollow fiber bundle module is formed by folding the hollow fiber bundles in an inverted U shape and integrating both ends into one at the open end side of the filter case.
Including,
An immersion type hollow fiber membrane filter device in which both ends of the hollow fiber bundle are immersed in the purified water through the open end of the filter case in the purified water tank storing the purified purified water through the filter and the hollow fiber membrane module. The method according to claim 1,
The filter case is an immersion type hollow fiber membrane filter device in which the open end is immersed in the purified water in the purified water tank. The method according to claim 1,
The hollow fiber membrane module,
Immersion type hollow fiber membrane filter device is fixed to the open end of the filter case through the fixing member inside the filter case, both ends of the hollow fiber bundle is bonded to the fixing member. Filters including a post carbon filter and removing foreign substances in raw water;
A hollow fiber membrane filter device connected to the post carbon filter; And
A water purification tank configured to store the hollow fiber membrane filter device therein and storing purified water through the filters and the hollow fiber membrane filter device
Including;
The hollow fiber membrane filter device is a water purifier including a filter case of the open side and a hollow fiber membrane module configured in the filter case. The method of claim 4, wherein
The hollow fiber membrane filter device,
The water purifier in which the open end of the filter case is immersed in purified water in the purified water tank. The method of claim 5,
The hollow fiber membrane module is a water purifier immersed in the purified water through the open end of the filter case in the water purification tank. The method according to any one of claims 4 to 6,
The hollow fiber membrane module,
The water purifier is fixed to the open end of the filter case through a fixing member, and the hollow fiber bundle is folded in an inverted U shape to bond both ends to the fixing member. The method of claim 7, wherein
The hollow fiber membrane module,
The water purifier in which the fixing member is immersed in the purified water through the open end of the filter case in the water purification tank. The method of claim 4, wherein
The hollow fiber membrane filter device is connected to the post carbon filter through a water purification line,
The water purifier is provided with a pressure pump for pressurizing water supplied to the hollow fiber membrane filter device through the filter.

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