KR20180046182A - Filter for flat type water treatment - Google Patents

Abstract

Provided is a flat filter for water treatment. An embodiment of the present invention provides a flat filter for water treatment, comprising: a filtering member including a flat first support having a predetermined area and a pair of nanofiber webs having an area greater than the first support and made of nanofiber on both sides of the first support; a pair of extension members extended from one edge of the first support to the outside while being fixated to the pair of nanofiber webs, respectively; a first support member arranged to surround the remaining edge of the first support and fixated to the filtering member; and a receiving hole assembly including at least one receiving hole for discharging filtered water to the outside and a second support member fixated to each of the pair of extension members, respectively and provided with at least one through hole, into which the at least one receiving hole is inserted. The first support member, the pair of extension members and the second support member comprises a flat member and the at least one receiving hole has an inner diameter greater than the inner diameter of a filtering member. The present invention fixates a film member, arranged between the nanofiber webs to perform a role of a support frame, to an end side of the nanofiber webs through thermal bonding, thereby enhancing work productivity.

Description

[0001] The present invention relates to a filter for flat type water treatment,

The present invention relates to a planar filter for water treatment.

In general, urban sewage and industrial wastewater have increased due to the rapid development of industries and urban concentration of population. The increase of wastewater is a big problem in modern society, and various wastewater treatment facilities are being proposed for economical and efficient treatment.

The wastewater treatment facility may include a plurality of filters for filtering the wastewater, and the wastewater is filtered through the filtration members included in the respective filters.

At this time, when the filter member is provided in a flat plate shape having a predetermined area, a support member for supporting the filter member is fastened to the edge of the filter member.

When a filter member is normally supported by a film member, a method in which the frame is fixed to the edge side of the filter member via an adhesive member is used. Accordingly, since an adhering step for fixing the frame and the filter member is carried out, there is a problem that the work process is troublesome.

KR 10-1242080 B1

Disclosure of the Invention The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a method of manufacturing a nanofiber web having a thin film member disposed between facing nanofiber webs, And it is an object of the present invention to provide a flat filter.

Another object of the present invention is to provide a water-treatment flat plate filter capable of improving filtration efficiency and cleaning efficiency by configuring the pressure at both ends of a receiving port at the time of discharging filtered water or supplying a fluid such as washing water to be different.

According to an aspect of the present invention, there is provided a nanofiber web comprising a first support having a plate-like shape having a predetermined area, a pair of nanofiber webs having a larger area than the first support and formed of nanofibers on both sides of the first support, ; A pair of extension members fixed to each of the pair of nanofiber webs at an edge of the first support and extending outward; A first support member disposed to surround the remaining rim of the first support and fixed to the filter member; And a second support member fixed to each of the pair of extension members and having at least one through-hole into which the at least one receiving opening is inserted, at least one receiving opening for discharging filtered water to the outside, And an assembly for a water treatment. Here, the first supporting member, the pair of extending members, and the second supporting member are plate-shaped members, and the inner diameter of the at least one receiving opening is larger than the inner diameter of the filtering member.

According to a preferred embodiment of the present invention, the second support member is composed of one plate-like member and can be fixed to each of the pair of extension members in a folded state.

Further, the pair of connecting members may be disposed between the folded side surfaces of the second support member.

The first and second support members may be fixed to each other at both ends through thermal fusion, and a first flow path may be formed between the both side surfaces of the folded state.

In addition, the at least one through-hole may be formed in the folded portion of the second support member.

Further, the second support member may be fixed to the insertion side of the at least one receiving opening by thermal fusion along the outer periphery.

At this time, the second support member may be fixed to the pair of connection members through thermal fusion.

In addition, each of the first supporting members may be arranged to be partially inserted between a pair of nanofiber webs extending outward from the rim of the first supporting member, and the end sides of the nanofiber web may be fixed by heat fusion .

Further, the plate-like member may be a film member.

At this time, the film member may be a fluororesin film containing at least one selected from the group consisting of polyethylene terephthalate (PET), polypropylene (PP), and polyteterephthalate (PTFE).

In addition, each of the first support members may have a second flow path through which one end of the first support member may be spaced apart from the rim of the first support to allow fluid to flow.

Also, at least one fastening hole may be formed through the first support member and the second support member.

In addition, the filter member may include a second support interposed between the nanofiber web and the first support.

Also, the second support may include an extension extending from the rim of the first support to be interposed between the support member and the nanofiber web facing each other, and one surface of the nanofiber web and the support member may be provided on both surfaces of the extension Respectively.

At this time, the second support body can be melted at least partially or entirely by heat.

The first support and the second support may be made of a porous substrate.

At this time, the porous substrate may be a nonwoven fabric.

According to the present invention, a film member disposed between nanofiber webs and serving as a support frame is fixed to the end side of the nanofiber web by thermal fusion, thereby improving work productivity.

Further, since the rim of the filter member is supported by the film member, the present invention can attain both reduction in thickness and weight.

Further, according to the present invention, the inner diameter of the receiving opening is formed so that the outer side is larger than the side of the filtration member, so that filtration efficiency and cleaning efficiency can be improved even when the filtration water is discharged, Therefore, economical operation is possible.

Further, according to the present invention, by forming a channel by folding one plate member to form a channel, the channel can be stably formed while minimizing the sealing structure, so that the reliability of the product can be improved and the sealing process can be minimized, And the manufacturing cost can be reduced.

1 is a view showing a planar filter for water treatment according to an embodiment of the present invention,
FIG. 2 is an exploded perspective view of FIG. 1,
Figure 3 is a view of the receiving space formed in the filter element for receiving the first and second support members in Figure 1,
4 is a cross-sectional view taken along line AA in Fig. 1,
Fig. 5 is a cross-sectional view in the BB direction in Fig. 1,
Fig. 6 is a cross-sectional view in the CC direction in Fig. 1,
Fig. 7 is a sectional view in the DD direction in Fig. 1,
FIG. 8 is a sectional view of a portion of the second support member in FIG. 1,
9 to 12 are views showing a process of preparing a plate-type filter for water treatment according to an embodiment of the present invention.

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 order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

1 to 3, the filter 100 for water treatment according to an embodiment of the present invention includes a filtration member 110, an extension member 115, a first support member 120, Assembly 130 as shown in FIG.

The filtration member 110 is used to filter foreign substances contained in the filtrate such as wastewater, and a known filtration member may be used. However, when the nanofiber web 112 is disposed on both sides of the first support 111 It may be in the form of a plate.

In the present invention, the nanofiber web 112 is for filtering foreign substances contained in the filtrate during passage of the filtrate by the suction pressure, and the first support 111 may be formed of a non- The web 112 may be supported in a plate form and may serve as a moving passage through which the filtered water produced by the nanofiber web 112 moves.

In this case, the filter member 110 may have a three-layer structure in which the nanofiber web 112 is directly attached to both surfaces of the first support body 111, and the nanofiber web 112 and the first support body Layer structure in which a separate second support body 113 is interposed between the first and second support members 111 and 111 (see FIG. 4).

Here, the second support 113 may have a thickness that is relatively thinner than the thickness of the first support 111 to reduce the overall thickness of the filter 110, It can be laminated on one side.

Accordingly, the nanofiber web 112 is attached directly to the first support 111 without being attached to the first support 111, thereby improving adhesion and facilitating adhesion.

For example, the nanofiber web 112 may be attached to the first support 111 via the second support 113 through heat fusion, ultrasonic fusion, high frequency fusion, or the like.

At this time, the second support body 113 may be partially or completely melted and attached to the first support body 111 during the attachment process.

For this, the nanofiber web 112 may have a melting temperature that is higher than the process temperature in the fusing process so as not to be melted by heat, and the second support 113 may have a process temperature Lt; RTI ID = 0.0 > melt temperature. ≪ / RTI >

Accordingly, the filtration member 110 may be formed in a three-layer structure by completely melting the second support body 113, and only a part of the second support body 113 may be melted to form the nanofiber web 112, 1 structure in which the second support body 113 remains between the first support body 111 and the first support body 111. However, the structure of the filtration member 110 is not limited thereto, and it should be noted that the present invention is not limited to the structure in which one or more supporting layers are interposed between the two nanofiber webs 112.

In addition, the first support 111 and the second support 113 may be porous substrates so that the filtration water produced by the nanofiber web 112 can act as a movement path.

For example, the first support 111 and / or the second support 113 may be any one of commonly known fabrics, knitted fabrics, and nonwoven fabrics, and the nonwoven fabric may be a chemical bonding nonwoven fabric, a thermal bonding nonwoven fabric, A nonwoven fabric such as a nonwoven fabric, a dry nonwoven fabric such as a nonwoven fabric, a nonwoven fabric, a nonwoven fabric, a nonwoven fabric, a nonwoven fabric or a nonwoven fabric, And the results are shown in Fig.

In other words, the material of the first support 111 and / or the second support 113 is not limited. 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 111 and / or the second support 113 and the nanofibrous web 112 during application of the water treatment process by improving the binding force with the nanofiber web 112, The first support 111 and the second support 113 may be formed of a low melting point polymer such as a known low melting point polyester and a low melting point polyethylene capable of heat fusion, 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 111 may be 2-200 μm, but is not limited thereto.

The second support 113 may be made of the same material as the first support 111 but may be made of the same material as the first support 111, Can be increased.

The nanofiber web 112 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 112 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 is not volatilized / evaporated during the fusing process, fusion occurs at the portion of the laminated nanofibers contacting the surfaces of the fibers to form a three-dimensional network structure. The nanofiber web 112 may be a single layer or may have multiple layers.

At this time, the nanofiber web 112 applied to the present invention may have a relatively larger area than the first support 111 and may be disposed on both sides of the first support 111.

Specifically, the nanofiber web 112 includes a first portion 112a disposed in a region corresponding to the first support 111 so as to cover one surface of the first support 111, And a second portion 112b extending outwardly from the rim of the first portion 112a (see FIG. 7).

Here, the area of the second portion 112b may be the remaining area of the whole area of the nanofiber web 112 minus the area of the first portion 112a.

Thus, when a pair of nanofiber webs 112 are bonded to both sides of the first support 111, the respective nanofibrous webs 112 are separated from the first support 112 by the first support 112, The second portion 112b may be disposed on one surface of the first support 111 so that the second portion 112b protrudes outward from the rim of the first support 111 by a predetermined length, And may be spaced apart from each other by the thickness of the first support 111.

Here, the second portion 112b may be disposed entirely along the rim of the first support 111 (see FIG. 3).

The receiving space 114 defined by the width of the pair of the second portions 112b facing each other and the thickness of the first supporting member 111 can be formed and on the side of the receiving space 114, A first support member 120 for supporting the member 110 in the form of a flat plate may be inserted and disposed. In addition, an extension member 115 for coupling with the receiving port assembly 130 may be disposed on the receiving space 114 side.

At this time, the second portion 112b protruding outward from the rim of the first support body 111 may be directly fixed to one surface of the first support member 120 through heat fusion (see FIG. 7).

That is, in the present invention, the first support member 120 for supporting the filtration member 110 is inserted into the accommodation space 114 and then directly fixed to the filtration member 110 through thermal fusion, You do not need to use it or you can minimize it.

For this purpose, the nanofiber web 112 has a melting temperature that is similar to or lower than the process temperature that is performed during the fusing process so that at least a portion of the nanofiber web 112 can be melted by the heat applied when the first support member 120 is heat- The first support member 120 may have a melting temperature higher than the process temperature in the fusion process so that the first support member 120 does not melt due to heat applied during heat fusion, Resin.

As a result, the manual application of the adhesive member can be omitted or minimized, so that the productivity of the work can be increased.

In the case where the filtration member 110 according to the present invention is implemented in a structure having four or more layers in which at least one second support member 113 is interposed between the first support member 111 and the nanofiber web 112, 2 support 113 may have a relatively larger area than that of the first support 111 and may have the same area as the nanofiber web 112.

For example, when the filtration member 110 is implemented as a five-layer structure in which a second support body 113 and a nanofiber web 112 are sequentially stacked on both sides of a first support body 111, (113) may include an extension portion (113a) extending from a plate-shaped body having a predetermined area and disposed in a region corresponding to the second portion (112b) of the nanofiber web (112) ).

At this time, one surface of the extended portion 113a may be joined to the second portion 112b. Accordingly, the extension 113a may protrude outward from the rim of the first support 111 as in the second portion 112b, and the width of the pair of extension portions 113a facing each other, 1, a receiving space 114 defined by the thickness of the support 111 can be formed.

Here, the area of the extended portion 113a may be an area obtained by subtracting the area of the first supporting member 111 from the entire area of the second supporting member 113. A first support member 120 for supporting the filter member 110 in the form of a flat plate may be inserted and disposed on the side of the accommodation space 114. The first support member 111 may extend outward from the rim of the first support member 111 The protruded extension 113a may be directly fixed to one side of the first support member 120 through heat fusion.

When at least one second support member 113 is interposed between the nanofiber web 112 and the first support member 111, the nanofiber web 112 and the second support member 113 may be separated from the first support member 113, The first support member 120 may have a melting temperature that is similar to or lower than the process temperature that is performed in the fusing process so that at least a portion of the first support member 120 can be melted by heat during thermal fusion with the support member 120, And may be made of a polymer resin having excellent bonding strength with the support 113.

The extension member 115 is for coupling the filtration member 110 and the receiver assembly 130.

The extension member 115 is fixed to each of the pair of nanofiber webs 112 at one edge of the first support 111 and extends outward. At this time, the extension member 115 is formed of a pair of plate-like members, and may be disposed on the upper side of the first support body 111.

The pair of extension members 115 are larger than the second portions 112b of the pair of nanofibrous webs 112 protruding outwardly from the first support body 111. Accordingly, the pair of extension members 115 may protrude outward from the second portion 112b of the pair of nanofiber webs 112.

In the case where the filter member 110 according to the present invention is implemented in a structure having four or more layers in which at least one second support member 113 is interposed between the first support member 111 and the nanofiber web 112, The pair of extension members 115 may be fixed to a pair of second support members 113 protruding from the first support member 111 to extend outwardly (see FIG. 4).

Here, the pair of extension members 115 may have a larger size in the extension portion 113a corresponding to the second portion 112b of the nanofiber web 112. [ Accordingly, the pair of extension members 115 may protrude outwardly from the extended portions 113a of the pair of second support members 113.

The pair of extension members 115 are thermally welded to the second portions 112b of the pair of nanofiber webs 112 or the extension portions 113a of the pair of second supports 113, (See Fig. 11).

At this time, the pair of extension members 115 may be a thin film member. For example, the extension member 115 may be a fluororesin-based film containing at least one selected from the group consisting of polyethylene terephthalate (PET), polypropylene (PP), and polyteterephthalate (PTFE).

The pair of extension members 115 can be disposed on the upper side between the folded opposite side surfaces of the second support member 131 (see FIGS. 4 and 5). The pair of extension members 115 are connected to the pair of nanofiber webs 112 or the pair of second supports 113 at an outer surface thereof fixed to the pair of nanofiber webs 112 or the pair of second supports 113, The upper portion protruding from the second portion 112b of the second support member 113 or the extended portion 113a of the pair of second support members 113 can be fixed to both the folded sides of the second support member 131 through thermal fusion .

That is, the second support member 131 for supporting the filter member 110 is directly fixed to the filter member 110 through thermal fusion with the extension member 115, so that it is unnecessary or minimized to use the adhesive member .

The pair of extension members 115 may be made of the same material as the second support member 131. In this case, not only the connection with the second support member 131 is easy, have.

The first support member 120 is disposed on the edge of the first support member 111 to maintain the filter member 110 in a plate shape as described above.

The first support member 120 is disposed on the first support member 111 so as to surround the remaining rim of the first support member 111 where the extension member 115 is not disposed.

Here, the first support member 120 may be a single member or a plurality of the first support members 120 may be connected to each other. For example, when the first support member 120 is formed of a single member, the first support member 120 may have a substantially "C" shape.

At this time, the first support member 120 may be a thin film member. For example, the first support member 120 may be a fluororesin film containing at least one selected from the group consisting of polyethylene terephthalate (PET), polypropylene (PP), and polyteterephthalate (PTFE). However, it should be noted that the material of the first support member 120 is not limited thereto but may be made of a thin metal material.

The first supporting member 120 may be formed between a pair of second portions 112b or a pair of extending portions 113a projecting from the end of the first supporting member 111 and facing each other And the end portion of the second portion 112b or the extension portion 113a may be fixed to both sides of the first support member 120. [

The second portion 112b or the extended portion 113a protruding outward from the rim of the first support body 111 is directly fixed to one surface of the first support member 120 through heat fusion .

Accordingly, since the first support member 120 is directly fixed to the filtration member 110 through thermal fusion without using an adhesive member, the use of the adhesive member is minimized It becomes unnecessary.

At this time, the first support member 120 may be formed so that the end portion disposed between the second portion 112b or the extending portion 113a facing each other is spaced apart from the end portion of the first support member 111, Can be fixed to the member (110).

Accordingly, a first flow path 122 through which the fluid can flow is formed at the edge of the first support 111, so that filtered water produced through the filtration member 110 flows into the first flow path 122 side (See FIG. 7).

Here, the first flow path 122 of the first support member 120 is formed to communicate with the first support member 111 along the rim of the first support member 111, and the second flow path 122 of the second support member 120, And may be disposed so as to communicate with the second flow path 133 of the support member 131.

The first support member 120 disposed on the left and right edge sides of the filtration member 110 may be configured such that the first flow path 122 is disposed on the upper edge side of the filtration member 110, May be arranged to communicate with the first flow path 122 of the first support member 120 disposed on the lower edge side of the filtration member 110 together with the second flow path 133 of the member 131.

The filtered water produced through the filtration member 110 moves directly to the second flow path 133 or to the second flow path 133 via the first flow path 122, As shown in FIG.

The receiving port assembly 130 connects the receiving port 136 with the filtering member 110 and is disposed at one side edge of the first supporting member 111, for example, at an upper edge thereof to form the filtering member 110 in a plate- .

Such a receiver assembly 130 includes a second support member 131 and at least one receiver 136.

The second support member 131 has a function of supporting the filter member 110 in a plate form together with the first support member 120 and a function of supporting the filter member 110 in a plate- And may serve as a flow path for moving the filtered water to the receiving opening 136 side through a suction force provided from the outside.

To this end, the second support member 131 is formed of a single plate member. At this time, the second support member 131 can be fixed to both ends in a state where one plate member is folded. Here, the lower end of the second support member 131 may be fixed to each other except for a portion fixed to the pair of extension members 115. Accordingly, the second support member 131 may include a fixing portion 131a fixed at both ends thereof and a separating portion 131b which is not fixed to the fixing portion 131b (see FIG. 10).

Thus, the plate-like filter 100 for water treatment according to the present invention can be manufactured by folding and using one plate member without using a pair of plate members, It is possible to stably form the second flow path 133 even in the case of minimizing the sealing structure, and as a result, the reliability of the product can be improved.

In addition, since sealing is required only at both ends of the second support member 131, the sealing process such as thermal fusion can be minimized to reduce the manufacturing cost and further improve the productivity of the work.

A second flow path 133 through which the filtered water flowing from the filtration member 110 moves is provided between the separation portions 131b of the second support member 131 and between the pair of extension members 115 And a receiving opening 136 communicating with the second flow path 133 may be formed at one side of the second supporting member 131 (see FIG. 4).

Accordingly, a second flow path 133 through which fluid can flow between both side surfaces of the folded state of the second support member 131 can be formed along the longitudinal direction. That is, a second flow path 133 may be formed between the separation portions 131b of the second support member 131 (see FIG. 5).

At this time, the second flow path 133 is formed between the pair of nanofiber webs 112 or the pair of second supports 113 at both sides of the second support member 131, (See Fig. 6).

Therefore, the filtered water, which is moved into the filter member 110 by the suction force provided from a pump (not shown), is filtered through the first flow path 122 formed in the first support member 120 May be moved to the second flow path 133 formed in the second support member 131 or directly to the second flow path 133 and then discharged to the outside through the at least one receiving opening 136 8).

In contrast, in the backwash process, a fluid such as wash water supplied from the outside flows through the at least one receiving opening 136 and then directly to the second flow path 133 or through the second flow path 133, (122) and then supplied to the filtration member (110).

At this time, the second support member 131 may be a thin film member. For example, the second support member 131 may be a fluororesin film containing at least one selected from the group consisting of polyethylene terephthalate (PET), polypropylene (PP), and polyteterephthalate (PTFE).

In addition, the second support member 131 is formed with at least one through hole 134 into which the receiving opening 136 is inserted. The at least one through hole 134 may be formed on the folded portion of the second support member 131, that is, on the upper side of the second support member 131 (see FIG. 9) .

At this time, the second support member 131 may be fixed to the insertion side of at least one receiving opening 136 by thermal fusion along the outer periphery (see FIG. 4). Here, the second support member 131 may be fixed only to the receiving opening 136 at the edge of the through hole 134, but is not limited thereto and may be fixed to surround the outer periphery of the receiving opening .

That is, the second support member 131 is in a state in which both sides of the upper end portion are in close contact with each other so as to surround the outer periphery of the receiving opening 136 in a state where the receiving opening 136 is inserted into the through opening 134 And can be fixed through heat fusion.

The second support member 131 is disposed on the outer side of the pair of extension members 115 so that the lower side of both folded sides of the second support member 131 at one side of the rim of the filtration member 110, Respectively. Here, the second support member 131 can be fixed through heat fusion in a state where the lower side of the separating portion 131b is disposed outside the upper portion of the pair of extending members 115 (refer to FIG. 12 ).

Accordingly, since the second support member 131 is directly fixed to the extension member 115 through thermal fusion without using an adhesive member, the use of the adhesive member is minimized or unnecessary .

As described above, the water treatment flat plate filter 100 according to the present invention includes the receiving aperture assembly 130 disposed at one of the edges of the filter member 110, and the first support member 120 disposed at the other edge, The first support member 120 and the second support member 131 are formed of a thin film member so that the overall weight can be reduced and the thickness of the filter member 110 can be reduced. have.

The receiving opening 136 may be formed in the upper surface of the filtering member 110 to supply filtered fluid such as washing water for discharging filtered water to the outside or cleaning the filtering member 110, will be.

The receiving hole 136 is formed such that the inner diameter of the outer side 136a is larger than the inner diameter of the inner side 136b. That is, the receiving opening 136 is formed with a receiving hole passing through the inside thereof, and the outer side 136a connected to the external pump is inserted into the through hole 134 of the second supporting member 131, The inner diameter can be formed to be larger than the inner diameter of the protrusion 136b.

Thus, although the inner side 136b having a small inner diameter during the discharge of the filtered water through the receiving opening 136 has a high flow velocity, the outer side 136a having a low pressure and a large inner diameter has a low flow rate, Moreover, because of the suction force by the pump connected to the outer side 136a, the filtered water can be easily discharged from the inner side 136b of the receiving opening 136 to the outer side 136a. Therefore, the amount of the filtered water discharged from the receiving opening 136 can be increased by the same external pressure, so that the filtration efficiency can be improved.

Conversely, due to the pressure supplied by the pump, the outer side 136a is higher in pressure than the inner side 136b and further connected to the outer side 136a when a fluid such as wash water is supplied through the receiving opening 136, Can be easily supplied from the outer side 136a of the receiving opening 136 to the inner side 136b. Therefore, the same external pressure can increase the amount of fluid such as wash water supplied through the receiving opening 136, thereby improving the cleaning efficiency.

As described above, in the planar filter 100 for water treatment according to the present invention, the first support member 120 and the second support member 131, which form the first flow path 122 and the second flow path 133, Even when the cross-sectional area of the flow path is relatively small, the inner diameter of the outer side and the inner side of the receiving opening 136 are made to be different from each other, thereby making it possible to compensate for the reduction in filtration efficiency and cleaning efficiency.

The first support member 120 and the second support member 131 may be formed with at least one fastening hole 121 and 132, respectively. Here, the fastening hole 121 is formed at a corner portion of the first support member 120, and the fastening hole 132 is formed in the fixing portion 131a at both ends of the second support member 131 .

When the filter module is constructed using the flat plate-type filter 100 for water treatment according to the present invention, the fastening bars (not shown) are passed through the fastening holes 121 and 132 to integrate the plurality of flat plate- .

That is, when a plurality of flat panel filters 100 are fastened through fastening holes 121 and 132 to one fastening bar having a predetermined length, and a fastening member such as a nut member is fastened to both end sides of the fastening bar, It is possible to constitute a filter module in which the plurality of flat plate filters 100 are arranged in parallel.

The above-described planar filter 100 for water treatment can be applied to a known wastewater treatment system.

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: Water treatment flat plate filter 110: Filter member
111: first support 112: nanofiber web
112a: first part 112b: second part
113: second support body 113a: extension part
114: accommodation space 115: extension member
120: first supporting member 121, 132:
122: first flow path 130: receiver assembly
131: second support member 131a:
131b: separator 133: second flow path
134: through hole 136: receiving hole
136a: outer side 136b: inner side

Claims (17)

1. A filter comprising: a plate-like first support having a predetermined area; and a pair of nanofiber webs having a larger area than the first support and formed of nanofibers on both sides of the first support;
A pair of extension members fixed to each of the pair of nanofiber webs at an edge of the first support and extending outward;
A first support member disposed to surround the remaining rim of the first support and fixed to the filter member; And
And a second support member fixed to each of the pair of extension members and having at least one through-hole into which the at least one receiving opening is inserted, at least one receiving opening for discharging filtered water to the outside, Lt; / RTI >
Wherein the first support member, the pair of extension members, and the second support member are made of a plate-
Wherein the at least one receiving opening has an inner diameter on the outer side larger than an inner diameter on the filter member side. The method according to claim 1,
Wherein the second support member comprises a plate-like member and is fixed to each of the pair of extension members in a folded state. 3. The method of claim 2,
Wherein the pair of connecting members are disposed between both folded side surfaces of the second support member. 3. The method of claim 2,
Wherein the first and second support members are fixed to each other through heat fusion,
Wherein a first flow path through which fluid can flow is formed between both side surfaces of the folded state. 3. The method of claim 2,
Wherein the at least one through-hole is formed in a folded portion of the second support member. 6. The method of claim 5,
And the second support member is fixed to the insertion side of the at least one receiving opening by thermal fusion bonding along the outer periphery. The method according to claim 1,
And the second support member is fixed to the pair of connection members through thermal fusion. The method according to claim 1,
Wherein each of the first supporting members is disposed to be partially inserted between a pair of nanofiber webs extending outward from the rim of the first supporting member and the end side of the nanofiber web is fixed through heat fusion, filter. The method according to claim 1,
Wherein the plate-shaped member is a film member. 10. The method of claim 9,
Wherein the film member is a fluororesin film comprising at least one selected from the group consisting of polyethylene terephthalate (PET), polypropylene (PP), and polyteterephthalate (PTFE). The method according to claim 1,
Wherein each of the first support members is spaced apart from the rim of the first support by an interval so that a second flow path through which fluid can flow is formed. The method according to claim 1,
Wherein at least one fastening hole is formed through the first support member and the second support member. The method according to claim 1,
Wherein the filter member comprises a second support interposed between the nanofiber web and the first support. 14. The method of claim 13,
Wherein the second support comprises an extension extending from a rim of the first support to be interposed between the support member and the nanofiber web facing each other, wherein one side of the nanofiber web and the support member are fixed A flat plate filter for water treatment. 14. The method of claim 13,
And the second support body is melted at least partially or entirely by heat. 14. The method of claim 13,
Wherein the first support and the second support are made of a porous substrate. 17. The method of claim 16,
Wherein the porous substrate is a nonwoven fabric.

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