KR20180046210A - Water-purifying device using gravity - Google Patents

Abstract

Provided is a gravitational water purification apparatus. According to an embodiment of the present invention, the gravitational water purification apparatus comprises: a housing having a first space for storing raw water, and a second space for storing filtered water from which foreign materials contained in the raw water are filtered; and a filter part disposed in the first space to filter out the foreign materials contained in the raw water. The raw water flows into the filter part by gravity and then is transferred to the second space after the foreign matter is filtered. According to the present invention, cleanly filtered water can be obtained even in a harsh environment.

Description

Water-purifying device using gravity

The present invention relates to a water purification apparatus, and more particularly, to a gravity water purification apparatus capable of filtering raw water using gravity.

The supply of clean and safe water is essential for human health and survival. However, in Africa or in developing countries, the supply of clean water is not smooth, and the water in the ponds and ponds is used as drinking water.

Drinking contaminated water can cause various infectious diseases caused by microorganisms contained in contaminated water. In other words, it causes illnesses such as abdominal pain, diarrhea, vomiting and the like, and in severe cases, there are life-threatening problems.

Therefore, to prevent this, it is important that the food or water we eat is not contaminated by microorganisms.

If clean water and adequate food are currently being secured in developing countries, the effect of environmental improvement that can be prevented by clean water supply to reduce the overall mortality rate is far greater than the development of medical or therapeutic technology.

Generally, water has been used for drinking water since it is filtered by sand to remove debris. After that, sand and charcoal were poured from the upper part of the charcoal, and water from the upper part of the charcoal and sand was used as drinking water. Recently, a water purifier filled with various materials has been used.

However, since a general water purifier is a principle of constantly applying water pressure and passing the filter through the filter, it is necessary to provide a water pump with a constant water pressure. In the absence of such a facility, there is a limit to that general water purifiers can not be used.

KR 20-0223759 Y1

SUMMARY OF THE INVENTION It is an object of the present invention to provide a gravity-type water purification apparatus capable of easily producing filtered water using gravity under unfavorable conditions, such as electricity, without supply of power such as electricity.

According to an aspect of the present invention, there is provided a fuel cell system including a housing having a first space for storing raw water and a second space for storing filtered water filtered by the foreign matter contained in the raw water; And a filter unit disposed in the first space to filter out foreign substances contained in the raw water, wherein the raw water flows into the filter unit by gravity and is transferred to the second space side after the foreign matter is caught, to provide.

In addition, the housing may include a cover for opening and closing the open top of the first space. At this time, the lid includes at least one charging hole formed in a predetermined area so as to supply raw water to the first space side, and a capillary for filtering foreign matters contained in the raw water is arranged on the upper side of the charging hole .

The housing includes a first housing having the first space formed thereon and a second housing having the second space formed therein and the second space is connected to an outlet formed on the bottom surface of the first housing and the filter unit, And the process water discharged through the outlet may be stored.

The second housing may have an opening at an upper side thereof, and the outlet may be opened and closed through an opening / closing means that rotates according to the level of the filtered water stored in the second space. For example, the opening / closing means may include a buoyancy member rotatably coupled to the outlet side through a link member to move up and down according to a level of the filtrate, and a sealing member connected to an end of the linkage.

The bottom of the second housing may have a predetermined inclination to allow the filtered water to smoothly move to the side of the filtered water outlet, As shown in Fig.

A drain port may be formed at one side of the first housing for discharging foreign matter accumulated on the bottom surface of the first space to the outside.

In addition, the first housing and the second housing may be detachably coupled.

In addition, a fixture protruding from the inner surface of the housing may be provided on the first space side to prevent the filter unit from flowing. For example, the fixture may include a first fixture extending in a direction parallel to the bottom surface of the housing from the inner surface of the housing to prevent the filter from floating by the buoyant force, And a second fixture extending downward from the first fixture so as to prevent the first fixture.

The filter unit according to a preferred embodiment of the present invention includes: a plurality of flat plate type filter members spaced apart from each other in parallel with each other; And a common receiving member to which the receiving ports formed in the flat plate type filter member are connected to collect the filtered water produced in the filter member.

In addition, the filter member may include: a filter member formed in a plate shape having a predetermined area; And a support frame coupled to a rim of the filtration member to support the filtration member, and a flow path through which the filtrate produced through the filtration member flows is formed.

The filter member may include a plate-like first support having a predetermined area, and a pair of nanofiber webs formed of nanofibers on both sides of the first support.

The nanofiber web may include a first nanofiber web having a surface coated with an antimicrobial material and a second nanofibrous web laminated on a first surface of the first nanofiber web.

Also, a second support may be interposed between the nanofiber web and the first support.

The filter member may include a plurality of connection members coupled to the edge of the support frame, and at least one of the plurality of connection members may include an interval adjusting unit for adjusting the interval between adjacent filter members .

The connecting member may include: a body coupled to an edge of the support frame; An extension plate through which a fastening hole through which a fastening bar having a predetermined length passes is formed; And a spacing member protruding from at least one side of the extension plate.

According to another embodiment of the present invention, the filter unit includes at least one filter member detachably coupled to an outlet formed through a bottom surface of the first space, and the filtered water produced through the filter member is discharged through the outlet To the second space side. For example, the filter member may include: a hollow case including an inner wall and an outer wall spaced apart from each other; a plate-shaped filter member disposed between the inner wall and the outer wall; Wherein the filtration water produced through the filtration member is allowed to flow into the hollow portion of the case and then drop to the second space side through the protrusion.

According to the present invention, filtered water can be easily produced by using gravity even in a harsh condition in which there is no supply of power such as electricity, so that clean filtered water can be obtained even in a harsh environment.

This has the advantage of reducing installation and maintenance costs for installing separate water purification facilities. In addition, there is an advantage that quality of life can be improved by preventing disease caused by intake of contaminated water.

1 is a schematic view showing a gravity water purification apparatus according to the present invention,
2 is a view illustrating a state in which a first housing and a second housing are separated from each other in a gravity water filtering apparatus according to an embodiment of the present invention;
3 is an assembled cross-sectional view showing the internal configuration of FIG. 2,
Figure 4 is a view of Figure 3 taken from another angle,
5 is a view showing a filter unit applied to a gravity water filtration apparatus according to an embodiment of the present invention,
FIG. 6 is a view showing the operating state of the opening / closing means according to the level of the filtered water stored in the second space in FIG. 3;
Figure 7 shows the filter element in Figure 5,
8 shows the separation diagram of Fig. 7,
Fig. 9 is a sectional view of a frame applied to Fig. 7,
FIG. 10 is a view showing a connecting member applied to FIG. 7,
FIG. 11 is a view showing a coupling relationship between the connecting member and the support frame in FIG. 7;
FIG. 12 is a view showing a movement path in which the filtered water flows into the receiving opening in FIG. 7;
Figure 13 is a cross-sectional view of another type of filtration member that can be applied to Figure 7,
Fig. 14 is a view showing an engagement relationship between the outlet and the opening / closing means in Fig. 5,
Fig. 15 is a view showing the operating state of the opening and closing means applied to Fig. 5,
16 is a view showing the interior of a gravity water filtration apparatus according to another embodiment of the present invention,
17 is a cross-sectional view of the filter member applied to Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In the drawings, parts not relating to the description are omitted for clarifying the present invention, and the same reference numerals will be added to the same or similar components throughout the specification.

The gravity water purification apparatuses 100 and 200 according to an embodiment of the present invention include housings 110a and 110b and a filter unit as shown in FIGS. 1 and 16.

The housings 110a and 110b are used to store raw water as a treatment target liquid and to store filtered water produced through the filter unit. The housings 110a and 110b may be formed as a housing having a predetermined space.

That is, the housings 110a and 110b include a first housing 110a having a first space S1 in which raw water is stored and a second housing 110b having a second space S2 in which the filtered water is stored Lt; / RTI >

A filter unit for removing foreign substances contained in the raw water may be disposed in the first space S1, and at least one outlet 111 connected to the filter unit may be disposed on the bottom surface of the first housing 110a. So that only the filtered water produced through the filter portion can be moved to the second space S2 side of the second housing 110b through the outlet 111 . In addition, at least one handle 116 may be formed on one side of the first housing 110a so that the user can easily mount the handle.

At this time, the first housing 110a may be disposed on the upper side of the second housing 110b. Accordingly, the raw water stored in the first space S1 can be infiltrated into the filter portion by gravity or water pressure when the outlet 111 is opened. Therefore, the raw water can be dropped from the outside of the filtering member 121 to be infiltrated inward, and then dropped to the second space S2 through the outlet 111 after the foreign matter is filtered.

As described above, the gravity water filtration apparatuses 100 and 200 according to the present invention allow the first housing 110a, in which the filter unit and the raw water are stored, to be positioned on the upper side of the second housing 110b, So that the raw water can penetrate to the filter member 121 side of the filter unit using natural power. Thus, it is possible to produce filtered water even without using additional power such as electricity, so that it is possible to easily produce filtered water required even in a harsh environment in which a periodical facility such as electricity is not installed, electricity can not be supplied, or is difficult.

Meanwhile, a drain outlet 112 communicating with the first space S1 is formed at one side of the first housing 110a, thereby separating foreign matter deposited on the bottom surface of the first housing 110a from the raw water The raw water stored in the first space S1 may be discharged to the outside if necessary.

In addition, a filtration water outlet 113 communicating with the second space S2 is formed at one side of the second housing 110b so that when the filtered water stored in the second space S2 is used, the filtered water outlet 113 The filtrate can be withdrawn through the filter. At this time, the filtered water outlet 113 may be formed at a position near the bottom surface of the second housing 110b so that the filtered water stored in the second space S2 can be smoothly discharged by gravity, 2 The bottom surface of the housing 110b may be formed as an inclined surface having a predetermined inclination so that the filtered water stored in the second space S2 can smoothly move toward the filtered water outlet 113. [

Here, a well-known on / off valve 114 is provided on the side of the drain outlet 112 and the filtered water outlet 113 so that the user can easily change the open / close state.

On the other hand, a lid 140 for opening and closing the open top of the first space S1 may be rotatably connected to the upper side of the first housing 110a. Accordingly, if it is necessary to supply the raw water to the first space S1 or to replace the filter unit disposed in the first space S1, the cover 140 is opened and the raw water Or the filter unit can be easily replaced.

At this time, at least one charging hole 142 may be formed on the side of the lid 140 so as to penetrate through the predetermined space so as to supply raw water to the first space S1. Accordingly, if it is necessary to supply the raw water to the first space S1, the raw water can be supplied to the first space S1 through the charging hole 142 without opening the lid 140. [

In addition, a screen member 144 surrounding the charging hole 142 may be formed around the charging hole 142 to have a predetermined height from one side of the lid 140. When the raw water is supplied to the first space S1 through the charging hole 142, even if the amount of raw water supplied to the charging hole 142 is large, 142 are prevented from flowing away and thus the raw water supply operation can be easily performed.

At this time, a cap 146 may be disposed on the upper side of the charging hole 142 to filter foreign substances contained in the raw water. Accordingly, when the raw water contains voluminous foreign matters such as leaves or mud, foreign matter having a large volume is filtered by the filter 146, thereby increasing the filtration efficiency of the filter unit. The screen 146 may be detachably coupled to the screen member 144 and may be any known material used as a screw net such as stainless steel or plastic.

Meanwhile, the first housing 110a and the second housing 110b may be integrally formed with each other or may be detachably coupled.

For example, the first housing 110a and the second housing 110b are formed integrally with the first housing 110a and the second housing 110b, and the bottom surface of the first housing 110a or the top surface of the second housing 110b, The surface of the first space S1 serves as a partition for partitioning the first space S1 and the second space S2 so that the raw water stored in the first space S1 and the filtered water stored in the second space S2 are separated from each other Lt; / RTI >

As another example, the first housing 110a and the second housing 110b may be removably formed in the housings 110a and 110b, and the first housing 110a may be separated from the second housing 110b, As shown in FIG.

2, a coupling hole 115 for supporting the lower edge of the first housing 110a is formed on the upper edge side of the second housing 110b, so that the first housing 110a May be coupled to the upper side of the second housing 110b.

For example, the coupling hole 115 may be formed on the upper edge side of the second housing 110b in a substantially 'C' shape. Accordingly, the first housing 110a disposed on the upper side of the second housing 110b can be easily coupled to the second housing 110b by closely contacting the lower edge side with the coupling hole 115, The flow in the left and right directions can be prevented by the flow path 115. In addition, when the first housing 110a or the second housing 110b is partially replaced, the first housing 110a is lifted up and the lower edge side is detached from the coupling hole 115 Only the housing can be easily replaced.

In the present invention, when the first housing 110a and the second housing 110b are detachably formed, the upper surface of the second housing 110b has a predetermined area in a region corresponding to the outlet 111 The opening 117 can be formed through. Accordingly, the filtered water discharged through the outlet 111 may fall into the second space S2 and be stored in the second space S2.

Here, the top plate has a predetermined height and a bushing 118 surrounding the rim of the opening 117, so that the amount of the filtered water stored in the second space S2 can be maximized.

The outlet 111 formed on the bottom surface of the first housing 110a may allow or block the discharge of the filtered water produced by the filter unit through the opening and closing means 150.

At this time, the opening / closing means 150 is automatically operated by the level of the filtered water stored in the second space S2 so as to allow or block the discharge of the filtered water, so that no separate driving force such as electricity is required. .

For example, the opening and closing means 150 may include a hollow tube 151 to be coupled to the outlet 111, and a link member 152 rotatably connected to the tube 151, The sealing member 153 and the buoyancy member 154 can be fixed to both end sides of the link member 152 (see Fig. 14).

Here, the sealing member 153 may be rotated together with the link member 152 to open or close the outlet 111, and the buoyancy member 154 may be stored in the second space S2. And can be provided with a driving force for rotating the link member 152 by being lifted and lowered by buoyancy depending on the level of the filtered water.

Accordingly, when the amount of the filtrate water flowing into the second space S2 is small, the opening / closing means 150 rotates the link member 152 downward by the weight of the buoyancy member 154, 111) can be kept open (see Fig. 15 (a)).

On the other hand, when a certain amount of filtered water is filled in the second space S2, the buoyancy member 154 floats on the surface of the filtered water and rises by buoyancy as the water level of the filtered water stored in the second space S2 rises, The link member 152 can be pivoted to the upper side (see Fig. 15 (b)). The sealing member 153 fixed to the end of the link member 152 covers the outlet 111 and changes the outlet 111 to a closed state so that the filtered water produced through the filter unit is discharged to the second space S2) side.

When the amount of filtrate that can be contained in the second space S2 is filled, the gravity water purification apparatuses 100 and 200 according to the present invention change the outlet port 111 to the closed state through the opening / The production of the filtered water through the filter unit can be stopped so that the raw water or the produced filtered water can be prevented from being unnecessarily discarded.

The filter unit includes at least one filter member (120, 220) and is disposed in the first space (S1) to remove foreign matter contained in the raw water to produce filtered water. In this filter unit, raw water around the filter members 120 and 220 permeates into the interior of the filter member 121 through gravity or water pressure as described above, thereby producing filtered water.

To this end, the filter unit may have a plurality of filter members 120 and 220 disposed in the first space S1, and the plurality of filter members 120 and 220 may be modularized as shown in FIG. 5, Or may be separately mounted on the bottom surface of the first housing 110a as shown in Figs. 16 and 17. Fig.

For example, the filter unit may be realized in the form of a module in which a plurality of filter members 120 are arranged parallel to each other and fixed to each other via a fastening bar 170.

5, the filter unit 120 may include a plurality of filter members 120 and a common receiving member 130, and each of the filter members 120 may include a common receiving member 130, Lt; RTI ID = 0.0 > 161 < / RTI > Here, the connection pipe 161 may be a flexible tube member or a rigid hollow pipe member member.

Specifically, the plurality of filter members 120 may be integrally formed through one fastening bar 170 having a predetermined length while being arranged in parallel with each other. Each of the receiving openings 124 formed in the filter member 120 is connected to the common receiving member 130 in a one-to-one manner so that filtered water produced through the respective filter members 120 flows into the common receiving member 130 And the common receiving member 130 is connected to the outlet 111 formed on the bottom surface of the first housing 110a via the connecting pipe 162 so that the filter member 120 The filtered water produced through the first collecting member 130 may be collected through the common receiving member 130 and then moved to the second space S2 through the outlet 111. [

Here, the filter member 120 may be a flat plate type, and the plurality of filter members 120 may be spaced apart from each other so as to secure a predetermined space between adjacent filter members 121 .

As a result, raw water, which is an object to be filtered, flows into the space between adjacent filter elements 121 to surround the filter element 121, and raw water around the filter element 121 is removed by gravity or water pressure from the filter element 121 to thereby simultaneously produce filtered water through the plurality of filter members 120.

Such a filter member 120 may include a filtering member 121, a supporting frame, and connecting members 123 and 123 'as shown in FIGS. 7 to 13.

The filter member 121 is for filtering foreign matters from raw water containing foreign matter and may be a known filter member. However, the filter member 121 may be a plate-shaped member in which a nanofiber web 121c is disposed on both surfaces of the first support member 121a. .

In the present invention, the nanofiber web 121c is used to filter foreign substances contained in the raw water during the passage of the raw water. The first support 121a supports the nanofiber web 121c, The filtrate produced by the nanofiber web 121c can act as a movement path for movement.

In this case, the filter member 121 may have a three-layer structure in which the nanofiber web 121c is directly attached to both surfaces of the first support 121a, and the nanofiber web 121c and the first support Layer structure in which a separate second support body 121b is interposed between the first support 121a and the second support 121b.

Here, the second support 121b may be formed to have a thickness that is relatively thinner than the thickness of the first support 121a to reduce the overall thickness of the filter member 121, and the first support 121a ). ≪ / RTI >

Accordingly, the nanofiber web 121c is attached to the first support 121a without being directly attached to the second support 121b, thereby improving adhesion and facilitating adhesion.

For example, the nanofiber web 121c may be attached to the first support 121a via the second support 121b through thermal fusion, ultrasonic fusion, high frequency fusion, or the like.

At this time, the second support 121b may be partially or completely melted and attached to the first support 121a during the attachment process. For this, the nano-fiber web 121c may have a melting temperature higher than the process temperature that is performed in the fusing process so as not to be melted by heat, and the second support 121b may have a melting temperature higher than the process temperature And may be provided to have a low melting temperature.

Accordingly, the second support 121b may be completely melted to have a three-layer structure, and only a part of the second support 121b may be melted to form the nanofiber web 121c and the second support 121b. Layer structure in which the second support body 121b is left between the first support bodies 121a. However, the structure of the filtration member 121 is not limited thereto, and it should be noted that the present invention is not limited to the structure in which one or more supports are interposed between the two nanofiber webs 112.

In addition, the first support 121a and the second support 121b may be porous substrates so that the filtration water produced by the nanofiber web 121c may serve as a movement path. For example, the first support 121a and / or the second support 121b may be any one of known fabrics, knits, or nonwoven fabrics commonly used, and the nonwoven fabric may be a chemical bonding nonwoven fabric, a thermal bonding nonwoven fabric, A known nonwoven fabric such as a dry nonwoven fabric such as a nonwoven fabric, a nonwoven fabric such as a nonwoven fabric, a nonwoven fabric such as a nonwoven fabric or a nonwoven fabric such as a nonwoven fabric, It is possible to change it.

In other words, the first support 121a and / or the second support 121b are not limited in their materials. For example, synthetic fibers selected from the group consisting of polyester, polypropylene, nylon and polyethylene, Lt; / RTI > fibers can be used. However, it is possible to prevent separation between the first support 121a and / or the second support 121b and the nanofiber web 121c during the application of the water treatment process by improving the binding force with the nanofiber web 121c, The first support 121a and the second support 121b may be formed of a low-melting-point polymer compound such as a known low-melting-point polyester and a low-melting-point polyethylene capable of being thermally fused to the first support 121a and the second support 121b, And a polyolefin low melting point conjugated fiber having a low melting point polyester as a core and a polyethylene terephthalate as a core and a polyester low melting point conjugated fiber and / or a low melting point polyethylene as a core and a polypropylene core as a core . The melting point of the low-melting point polymer compound may be 60-180 ° C., and the thickness of the first support 121 a may be 2-200 μm, but is not limited thereto.

The second support 121b may be made of a different material from the first support 121a, but may be made of the same material as the first support 121a, It is possible to increase the adherence force with the first support portion 121a.

The nanofiber web 121c may be formed through nanofibers to filter foreign substances contained in the filtrate. At this time, the nanofibers may include a fiber forming component including polyacrylonitrile (PAN) and polyvinylidene fluoride (PVDF), and an emulsifying agent for improving miscibility of the fiber forming component.

Here, the fiber forming component may include polyacrylonitrile (PAN) and hydrophilic polyvinylidene fluoride (PVDF), both of which have high hydrophilicity.

The PVDF can secure the mechanical strength and chemical resistance of the nanofiber due to the nature of the material. The PAN is hydrophilic, thereby preventing the hydrophobicity of the nanofiber due to the PVDF and improving the hydrophilicity of the nanofiber, An improved water permeability can be exhibited.

Meanwhile, the nanofiber web 121c may include a nanofiber web having a three-dimensional network structure. For example, nanofibers comprising a fiber forming component comprising polyacrylonitrile (PAN) and polyvinylidene fluoride (PVDF) and an emulsifying agent can be laminated perpendicularly to the radiation plane, Due to the solvent which has not been volatilized / evaporated during the fusing process, fusion occurs in the portion of the laminated nanofibers contacting the surfaces of the fibers to form a three-dimensional network structure.

The nanofiber web 121c may be a single layer or may have multiple layers. For example, the nanofiber web 121c may include a first nanofiber web 121d attached to one surface of the first support 121a or the second support 121b as shown in FIG. 13, And a second nanofiber web 121e laminated on one surface of the nanofiber web 121d. At this time, an antimicrobial material such as a silver nano material may be coated on one surface of the first nanofiber web 121d.

Accordingly, the raw water is sequentially passed through the second nanofiber web 121e and the first nanofiber web 121d, and the foreign matter is filtered, and the antibacterial material contained in the first nanofiber web 121d It is possible to produce high-quality filtered water by filtering out harmful substances such as bacteria again.

In addition, a second nanofiber web 121 e, which does not contain an antibacterial substance, is laminated on one surface of the first nanofiber web 121 d and directly contacted with the raw water, This is possible. Accordingly, the microorganisms remove the organic substances adhering to the surface of the second nanofibrous web 121e, thereby preventing fouling by the organic matter.

In the present embodiment, silver nanomaterials are exemplified as an example of the antimicrobial material. However, the present invention is not limited thereto, and if it is possible to attach or coat the nanofiber web 121c, various known materials known as antimicrobial materials can be used Leave.

The support frame is disposed at the edge of the filter member 121 and supports the edge of the filter member 121 so that the filter member 121 can maintain a plate-like shape.

The support frame may be a single member that supports or partially supports the edge of the filter member 121, but a plurality of frames 122 and 122 'may be coupled to the edge of the filter member 121 . ≪ / RTI >

For example, the plurality of frames 122 and 122 'may be respectively disposed on the edge side of the filter member 121 so that one end thereof is in contact with the other end, The end sides of the two adjacent frames 122 and 122 'can be connected to each other through the connecting members 123 and 123'. However, the shape of the support frame is not limited thereto, and may be changed into various shapes such as a circle, arc, polygon, and a combination thereof depending on the shape of the filter member 121, It is clear that any form is acceptable.

At this time, the support frame may serve as a flow path for supporting the filter member 121 and for the filtered water produced by the filter member 121 to move toward the receiving opening 124. For this purpose, each of the frames 122 and 122 'constituting the support frame may be provided in a substantially' C 'shape with one side thereof being opened, and a flow path through which the filtered water flowing from the filtration member 121 moves 122c may be formed (see Fig. 8).

More specifically, the plurality of frames 122 and 122 'includes a first plate 122a having a plate shape and a pair of second plates 122b extending in a direction perpendicular to both ends of the first plate 122a, And the flow path 122c may be formed along the longitudinal direction of the frames 122 and 122 'between the pair of second plates 122b facing each other.

Accordingly, the filter member 121 can be supported by the pair of second plates 122b, which face each other by being inserted into the space formed between the pair of second plates 122b. At this time, the edge of the filtration member 121 inserted into the space formed between the pair of second plates 122b may be inserted at a distance from the first plate 122a.

That is, a restricting member 122d for restricting the insertion depth of the filter member 121 may be formed on the opposing surfaces of the pair of second plates 122b facing each other. As a result, the insertion depth of the filtration member 121 is restricted through the restricting member 122d in the process of fastening the edge of the filtration member 121 to the respective frames 122 and 122 ' And a flow path 122c through which filtrate water can move may be formed between the edge of the first plate 122a and the first plate 122a.

In the present invention, the restraint member 122d may be formed on each of the opposing surfaces of the pair of second plates 122b facing each other, but only on the inner surface of any one of the pair of second plates 122b . In addition, the restraint member 122d may be entirely or partially provided along the longitudinal direction of each frame. In addition, when the restricting members 122d are formed on the opposing surfaces of the pair of second plates 122b facing each other, the respective restricting members 122d are spaced apart from each other with a predetermined gap, To the flow path 122c side.

Meanwhile, the filter member 120 of the present embodiment may include connecting members 123 and 123 'that are coupled to the edge of the support frame. The connection members 123 and 123 'may be provided in plural, and the ends of the two adjacent frames 122 and 122' may be fixed to the edge of the support frame.

To this end, the connecting members 123 and 123 'may include a body 123a having one side opened so that the end sides of the adjacent frames 122 and 122' can be inserted. The two frames 122 and 122 'adjacent to each other among the plurality of frames 122 and 122' constituting the support frame are fixed to the body 123a by being inserted into the body 123a, .

For example, the end of one of the two frames 122 and 122 'adjacent to each other is inserted in the first direction of the body 123a, and the end of the other one of the frames 122 and 122' May be disposed so as to be in contact with the ends of the frames 122 and 122 'inserted in the second direction of the body 123a and inserted in the first direction.

At this time, the flow path 122c formed in the frames 122 and 122 'inserted in the first direction and the flow path 122c formed in the frames 122 and 122' inserted in the second direction communicate with each other to form a plurality of frames 122 and 122 'Can communicate with each other.

Here, the first direction and the second direction may be directions orthogonal to each other on the same plane, or may be inclined to have a predetermined angle with respect to one straight line on the same plane.

Meanwhile, when the plurality of filter members are arranged in parallel with each other, the filter member 120 according to the present invention may be provided with a gap adjusting member 125 so that the respective filter members 121 can be spaced apart from each other have. The gap adjusting member 125 may be provided on at least one of the plurality of frames 122 and 122 'constituting the support frame, but may be provided on at least one of the connecting members 123 and 123'. For example, the gap adjusting member 125 may include an extension plate 125a having a fastening hole 125c and a spacing member 125b, and may be formed on one side of the connecting member 123 or 123 '.

Specifically, the extension plate 125a may extend outward from the body 123a of the connecting members 123 and 123 ', and a fastening hole 125c through which the fastening bar 170 passes may be formed. Although the fastening holes 125c are illustrated as being formed in the extension plate 125a in a circular shape, the fastening holes 125c are not limited thereto and may have a shape corresponding to the cross-sectional shape of the fastening bar 170. For example, the fastening holes 125c may be formed in a circular, arc-like, polygonal cross-section, or a combination thereof.

The spacing member 125b may protrude from the one surface of the extension plate 125a at a predetermined height so as to have a predetermined thickness and the spacing member 125b may surround the edge of the fastening hole 125c, As shown in FIG.

The spacing member 125b may be formed on both sides of the extension plate 125a or may be formed on only one side of the extension plate 125a and may be formed on one side of the extension plate 125a, As shown in FIG.

Accordingly, when the plurality of filter members 120 according to the present invention are fixed to each other through the fastening bar 170, the filter members 121 arranged parallel to each other even when the respective filter members 120 are completely in contact with each other, Can be spaced apart through the spacing member 125b (see FIG. 5). Accordingly, when the plurality of filter members 120 are arranged in parallel and then the fastening bar 170 is fastened so as to pass through the fastening holes 125c and the filter members 120 are closely contacted with each other, Each of the filter members 121 to be disposed may be spaced apart at predetermined intervals through the spacing members 125b.

That is, if the filter members 120 connected to the fastening bar 170 are brought into close contact with each other, even if the operator does not adjust the gap between the filter members, uniform spacing between the filter members 121 by the spacing member 125b And when a fixing member such as a nut is fastened to both sides of the fastening bar 170, a gap formed between the respective filtering members 121 can be maintained. As a result, the filter member 120 may include raw water on both sides of the respective filter members 121, thereby moving to the inside of the filter member 121 from both sides of the filter member 121 by gravity or water pressure, Can be produced. In addition, when backwashing is performed to remove foreign matter adhered to the filter member 121 after repeated production of the filtered water, the pressure of the fluid, such as washing water supplied from the outside, May be separated and then fall into a space between adjacent filter members 121. [

At least one of the connecting members 123 and 123 'may be provided with a receiving opening 124 for discharging the filtered water moved along the flow path 122c formed in each of the frames 122 and 122' . That is, the connecting member 123, which is not provided with the receiving opening 124, among the plurality of connecting members 123 and 123 'coupled to the edge of the supporting frame only plays a role of connecting the adjacent pair of frames And the connecting member 123 'having the receiving opening 124 may serve as a drain for discharging the filtered water produced through the receiving opening 124 to the outside.

The receiving opening 124 may be connected to the common receiving member 130 via the connecting pipe 161 as described above.

At this time, the connecting member 123 'in which the receiving opening 124 is formed is connected to the flow paths 122c formed in the two frames 122 and 122' when the two connecting frames 122 and 122 ' And the collecting space 126 may be formed at a position in communication with the receiving opening 124. [

For example, the collection space 126 includes two frames 122 and 122 'inserted into the connection member 123' when the connection member 123 'in which the receiving opening 124 is formed and the two frames 122 and 122' The collecting space 126 may be formed at one end of one of the two frames 122 and 122 'inserted into the connecting members 123 and 123' (See FIG. 11).

The common receiving member 130 is for integrating the filtered water produced in each of the filter members 120. That is, the common receiving member 130 is connected to the receiving port 124 formed in each filter member 120, so that the filtered water produced individually in each filter member 120 is collected in the collecting space 126, And can be introduced into the common receiving member 130 side via the opening 124.

In addition, the common receiving member 130 may be configured to apply a high-pressure fluid such as washing water or high-pressure air supplied from the outside to the respective filter members 120 in backwashing operation for removing foreign matter adhered to the filtering member 121 It can also play a role of distributing. Accordingly, even if the plurality of filter members 120 fixed to the fastening bar 170 are not separately separated, the foreign matters adhered to the respective filter members 121 can be removed, thereby facilitating the cleaning operation.

When the plurality of receiving openings 124 formed in the respective filter members 120 are plural, the common receiving members 130 may be provided as one unit, As shown in FIG.

The common receiving member 130 includes a plurality of inlet ports 131 connected to the receiving port 124 and an outlet port 132 connected to the outlet port 111 formed on the bottom surface of the first housing 110a. ).

The inlet 131 may be connected to the receiving port 124 of the filter member 120 and the inlet 131 may be connected to the receiving port 124 one to one. (See FIG. 5). Accordingly, the filtered water produced by the plurality of filter members 120 can be introduced into the common receiving member 130 and then integrated into one.

In the meantime, when the plurality of filter members 120 are formed as an integrated module through one fastening bar 170 as described above, the module is inserted into the first space 110a inside the first housing 110a S1 to prevent the fluid from flowing in the first and second flow passages (S1, S2).

3 and 4, the fixture 119 includes a first fixture 119a extending from the inner surface of the first housing 110a in a direction parallel to the bottom surface of the first housing 110a, And a second fixture 119b extending downward from the first fixture 119a.

Accordingly, the modules integrated with each other through the fastening bar 170 are inserted into the first fastener 119a and the second fastener 119b on the upper and side sides of the fastening bar 170 in the first space S1, As shown in FIG. Accordingly, when the module floats by buoyant force, float can be prevented by buoyancy through the first fixture 119a, and the module moves in a horizontal direction along the bottom surface of the first housing The horizontal movement can be prevented through the second fixing member 119b. Accordingly, when the amount of raw water stored in the first space S1 is large, the module body can be kept completely locked to the raw water. Even if the amount of raw water stored in the first space S1 is small, The production of the filtered water can be smoothly performed by maximizing the amount of the raw water that is in contact with the filter member 120.

Meanwhile, in the gravity water purification apparatus 200 according to the present invention, a filter member 220 for producing filtered water may be separately mounted on the bottom surface of the first housing 110a. For example, the filter member 220 may have a plate-shaped filter member 121 embedded in a hollow case 221 as shown in FIGS. 16 and 17.

That is, the case 221 may include a hollow inner wall 222 and an outer wall 223 spaced apart from each other. A filter member 121 may be disposed between the inner wall 222 and the outer wall 223, May be inserted. At this time, in order to allow the raw water to flow into the filter member 121 or to allow the filtered water produced through the filter member 121 to move toward the hollow portion of the case 221, Holes 225 and 226 may be formed through the through holes. The case 221 may be detachably coupled to the outlet 111 by forming a protrusion 224 at the lower end of the case 221 for fastening the outlet 221 to the outlet 111 formed on the bottom surface of the first housing 110a. have.

The protrusion 224 and the outlet 111 may be fastened through a press-fitting method or a screw method. The protrusion 224 may be hollowed to communicate with the hollow portion of the case 221 . The filtered water produced through the filtration member 121 moves to the center of the case 221 through the through hole 226 formed in the inner wall 222 and then flows through the protrusion 224 to the second space S2).

In the present embodiment, the filter member 121 may be formed of at least one layer of a nanofiber web 121c (not shown) on one surface or both surfaces of at least one support 121a, 121b made of a porous substrate, The nanofiber web 121c may be formed by stacking a first nanofiber web 121d coated with an antimicrobial material and a second nanofiber web 121e containing no antimicrobial material have. The filter member 121 disposed inside the case 221 may be simply wound around the inner wall 222 of the case 221. The filtering member 121 may be formed in a zigzag manner so as to widen the contact area with the raw water It may be in a folded corrugated form. The lid 227 is detachably coupled to the upper side of the case 221 to seal the upper portion of the outer wall 223 and / or the inner wall 222, Can be blocked.

In addition, although it is not shown in the drawings, it is noted that the opening / closing means 150 described above can also be applied to the protruding portion 224 side.

Although the two types of filter members 120 and 220 are illustrated in the drawings and the description, the present invention is not limited thereto. Various known filter members 120 may be employed. The structure of the filter member 120 Can be changed appropriately. In particular, the support frame disposed so as to support the filter member 121 in the form of a plate can be omitted from the rim of the filter member 121. [ For example, when the filter member 121 is implemented as a three-layer or five-layer structure as described above, a pair of the nanofiber webs 121c or the nanofiber webs 121c disposed on both sides of the first support member 121a 121c and the second support 121b are formed to have a relatively larger area than the first support 121a and then the portions protruding from the rim of the first support 121a are formed to be in contact with each other Leave.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100, 200: gravity-type water purification apparatus 110a: first housing
110b: second housing 120, 220:
130: common receiving member 140: cover
150: opening / closing means 161, 162:

Claims (20)

A housing having a first space for storing the raw water and a second space for storing the filtered water filtered by the foreign matter contained in the raw water; And
And a filter unit disposed in the first space to filter foreign substances contained in the raw water,
Wherein the raw water is introduced into the filter unit by gravity, and the foreign matter is filtered and then transferred to the second space side. The method according to claim 1,
And the housing includes a lid that opens and closes an open top of the first space. 3. The method of claim 2,
The lid includes at least one charging hole formed in a predetermined area so as to supply raw water to the first space side, and a gravity type charging / discharging device is disposed at an upper side of the charging hole, Water purification device. The method according to claim 1,
Wherein the housing includes a first housing having the first space formed therein and a second housing having the second space formed therein,
Wherein the second space is connected to an outlet formed on a bottom surface of the first housing and the filter unit to store process water discharged through the outlet. 5. The method of claim 4,
Wherein the second housing is formed with an opening on the upper side where the outlet is arranged and the outlet is opened and closed by an opening / closing means that rotates according to the level of the filtered water stored in the second space. 6. The method of claim 5,
Wherein the opening / closing means includes a buoyancy member rotatably coupled to the outlet side through a link member to be raised and lowered according to a water level of the filtrate water, and a sealing member connected to an end of the link member. 5. The method of claim 4,
And a filtered water outlet for discharging the filtered water stored in the second space to the outside, on one side of the second housing,
And the bottom surface of the second housing is formed as an inclined surface having a predetermined inclination so that the filtered water can smoothly move to the filtered water outlet side. 5. The method of claim 4,
And a drain outlet for discharging foreign matter accumulated on a bottom surface of the first space to the outside is formed on one side of the first housing. 5. The method of claim 4,
Wherein the first housing and the second housing are detachably coupled. The method according to claim 1,
And a fixture protruding from the inner surface of the housing to prevent the flow of the filter unit is provided on the first space side. 11. The method of claim 10,
The fixture may include a first fixture extending from the inner surface of the housing in a direction parallel to the bottom surface of the housing to prevent the filter from floating by the buoyant force, And a second fastener extending downwardly from the first fastener. The method according to claim 1,
The filter unit includes:
A plurality of flat plate type filter members spaced apart from each other in parallel and spaced apart from each other; And
And a common receiving member connected to each of the receiving ports formed in the flat plate type filter member to collect the filtered water produced in the filter member. 13. The method of claim 12,
Wherein the filter member comprises:
A filter member formed in a plate shape having a predetermined area; And
And a support frame coupled to a rim of the filtration member to support the filtration member and having a flow path through which filtered water produced through the filtration member flows. 14. The method of claim 13,
Wherein the filtration member comprises a first support having a plate shape having a predetermined area and a pair of nanofiber webs formed of nanofibers on both sides of the first support. 15. The method of claim 14,
Wherein the nanofiber web comprises a first nanofiber web having a surface coated with an antimicrobial material and a second nanofiber web laminated to one surface of the first nanofiber web. 15. The method of claim 14,
And a second support interposed between the nanofiber web and the first support. 14. The method of claim 13,
Wherein the filter member comprises:
And a plurality of connection members coupled to the edge sides of the support frame,
Wherein at least one of the plurality of connection members is provided with an interval adjusting member for adjusting an interval between adjacent filtration members. 18. The method of claim 17,
The connecting member includes:
A body coupled to an edge of the support frame;
An extension plate through which a fastening hole through which a fastening bar having a predetermined length passes is formed; And
And a spacing member protruding from at least one side of the extension plate. The method according to claim 1,
Wherein the filter unit includes at least one filter member detachably coupled to an outlet formed through a bottom surface of the first space,
And the filtered water produced through the filter member falls down to the second space side through the outlet. 20. The method of claim 19,
Wherein the filter member comprises:
A plate-shaped filter member disposed between the inner wall and the outer wall; and a hollow member formed to protrude from a lower end of the case and detachably coupled to the outlet, And a projection
Wherein the filtered water produced through the filtration member flows into the hollow portion of the case and then falls to the second space side through the protrusion.

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