KR102602669B1 - Filter for flat type water treatment and filter module using the same - Google Patents

Abstract

A flat filter for water treatment is provided. The flat filter for water treatment according to an embodiment of the present invention is fitted to the edge of the filtration member so as to support the filtration member formed in a plate shape, and forms a flow path through which the filtrate produced through the filtration member flows in and moves. a support frame; And a plurality of connecting members coupled to the corner side of the support frame. Here, the support frame includes a plurality of frames with both ends cut diagonally and in contact with each other, and at least one of the plurality of connecting members includes a receiving port for discharging the filtered water to the outside, and a first first disposed adjacent to the receiving port. The flow path of the frame communicates with the receiving port.

Description

Flat type filter for water treatment and flat type filter module including the same {Filter for flat type water treatment and filter module using the same}

The present invention relates to a flat filter for water treatment and a flat filter module including the same.

In general, urban sewage and industrial wastewater have increased due to rapid industrial development and concentration of population in cities. This increase in wastewater has become a huge problem in modern society, and various wastewater treatment facilities have been proposed to treat this economically and efficiently.

Such wastewater treatment facilities may be equipped with a plurality of filters to filter wastewater, and wastewater is filtered through a filtration member included in each filter.

At this time, when the filtering member is provided in a flat shape with a predetermined area, a frame for supporting the filtering member is fastened to the edge of the filtering member.

Typically, the frame consists of a plurality of frames and is connected through a connecting member. However, in the conventional case, there is a problem of low productivity because the frame near the receiving port and the other frames are manufactured structurally in different shapes.

KR 10-1242080 B1

The present invention was conceived in consideration of the above points, and its purpose is to provide a flat filter for water treatment that can improve productivity by standardizing the coupling structure of the frame and a flat filter module including the same.

In addition, the present invention provides a flat filter for water treatment that can improve fastening and airtightness by allowing a sufficient amount of adhesive member to be accommodated between the connecting member and the opposing surface of the frame, and a flat filter module including the same, for another purpose. There is.

In order to solve the above-described problem, the present invention is fitted to the edge side of the filtration member so as to support the filtration member formed in a plate shape, and a flow path through which the filtrate produced through the filtration member flows in is formed. support frame; and a plurality of connecting members coupled to corners of the support frame. It provides a flat filter for water treatment including a. Here, the support frame includes a plurality of frames with both ends cut diagonally and in contact with each other, and at least one of the plurality of connecting members includes a receiver for discharging the filtered water to the outside, and is adjacent to the receiver. The flow path of the disposed first frame communicates with the receiving port.

According to a preferred embodiment of the present invention, the first frame may have at least one through hole formed in a portion of the surface facing the receiving port.

Additionally, a passage through which the filtered water moves may be formed between the receiving port and the through hole.

At this time, the passage may be formed by a step surface cut on the inner surface opposite to the through hole of the connecting member where the receiving port is formed.

Additionally, the receiving port may be placed at the center of the area where the through hole is formed.

Additionally, a receiving space for accommodating the adhesive member may be formed between the inner surface of the connecting member where the receiving port is formed and the frame.

At this time, the receiving space may be formed by a step surface cut on the inner surface of the open end side of the connecting member where the receiving port is formed.

In addition, the plurality of frames include a first plate and a pair of second plates each extending from both ends of the first plate so that the edge side of the filtering member can be inserted, and the pair of second plates A restraining member may be protrudingly formed on the opposite surface to limit the insertion depth of the filtering member.

Additionally, a receiving space for accommodating an adhesive member may be formed between the inner surface of the second plate and the filtering member.

In addition, the receiving space is formed by at least one protrusion protruding along the longitudinal direction of the frame between the end of the second plate and the passage, and the protrusion extends inward from the inner surface of the second plate at a certain height. It may be protruding.

At this time, the protrusions are formed as a plurality of protrusions spaced apart from each other along the direction from the end of the second plate toward the flow path, and the plurality of protrusions have a larger protrusion height from the end of the second plate toward the flow path. It can be formed to have.

As another example, the receiving space may be formed through at least one step surface cut along the longitudinal direction of the frame on the inner surface of the end side of the second plate.

At this time, the step surface may be formed in a multi-step manner with different heights.

Additionally, at least one of the plurality of connecting members may be provided with a spacing adjuster for adjusting the spacing between neighboring filtering members.

In addition, the connecting member includes a body coupled to a corner of the support frame; and a spacing adjuster having a fastening hole through which a fastening bar having a predetermined length passes.

At this time, the spacing adjuster includes a spacing member that protrudes at a certain height on at least one side of the extension plate to adjust the gap between an extension plate extending from the body and through which the fastening hole is formed, and a filtering member disposed parallel to each other. can do.

In addition, the filtering member includes: a first support; And it may include a nanofiber web formed of nanofibers on the negative surface of the first support.

At this time, the filtering member may further include a second support disposed between the nanofiber web and the first support.

Meanwhile, the present invention includes the above-described flat filter for water treatment arranged in parallel and including at least one receiving port through which filtered water filtered through a filtering member is discharged; A fixing frame for fixing the plurality of flat filters for water treatment arranged in parallel to each other via at least one fastening bar; and at least one common receiving member that is connected in a one-to-one match with the receiving ports provided in each of the flat filters for water treatment and collects the filtrated water discharged from each receiving port. .

According to the present invention, the frame assembly process can be improved by processing both ends of a plurality of frames joined by connecting members into the same shape, thereby improving productivity.

In addition, the present invention can expand the area where the ends of the two frames are in contact by combining the ends of a plurality of frames with diagonal cut surfaces, thereby improving the bonding force between the frames and the supporting force of the filtering member.

In addition, the present invention forms a separation space on the opposing surface between the connecting member and the frame, so that a sufficient amount of adhesive member can be inserted, thereby improving airtightness, and the connecting member can be easily coupled to the frame, thereby improving fastening properties. can be improved.

1 is a diagram showing a flat filter for water treatment according to the present invention;
Figure 2 is an exploded view of Figure 1;
3 and 4 are cross-sectional views and partial perspective views showing various forms of the support frame and filtering member applied to the flat filter for water treatment according to the present invention;
Figure 5 is a partial separation diagram of a plurality of frames and filtration members applied to the flat filter for water treatment according to the present invention;
Figure 6 is a cross-sectional view of the frame at the portion where the through hole is formed in Figure 5;
Figure 7 is a diagram showing a connecting member applied to the flat filter for water treatment according to the present invention;
Figure 8 is a view showing the separated state of the connecting member and the support frame applied to the flat filter for water treatment according to the present invention;
Figure 9 is a view showing a state in which a connecting member and a support frame applied to the flat filter for water treatment according to the present invention are combined;
Figure 10 is a view showing the movement path of filtered water flowing into the water intake side from the flat filter for water treatment according to the present invention;
Figure 11 is a cross-sectional view showing the combined state of the connecting member and the support frame applied to the flat filter for water treatment according to the present invention;
12 is a view showing another form of a receiving port applied to a flat filter for water treatment according to an embodiment of the present invention;
Figure 13 is a diagram showing a flat filter module for water treatment according to an embodiment of the present invention, and
FIG. 14 is a diagram showing a state in which the fixing frame in FIG. 13 has been removed.

Hereinafter, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. The present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts not related to the description are omitted, and identical or similar components are given the same reference numerals throughout the specification.

As shown in FIGS. 1 and 2, the flat filter 100 for water treatment according to an embodiment of the present invention includes a support frame 120 and a connecting member 130.

The support frame 120 is fitted to the edge side of the filtering member 110, which is formed in a plate shape, and supports the edge side of the filtering member 110, thereby allowing the filtering member 110 to maintain its shape.

This support frame 120 includes a plurality of frames 120a and 120b coupled to the edge side of the filtering member 111.

For example, the plurality of frames 120a and 120b may be arranged on the edge side of the filtering member 110 so that one end is in contact with the other end, and on the edge side of the filtering member 110. End sides of two adjacent frames 120a and 120b may be connected to each other through the connecting members 130 and 130' (see FIG. 2).

However, the shape of the support frame is not limited to this, and depending on the shape of the filtering member 110, it can be changed into a circular shape, an arc shape, a polygon, or various combinations thereof, and a shape that entirely surrounds the edge of the filtering member. I would like to state that ramen can take any form.

At this time, the support frame 120 serves to support the filtering member 110 in a plate-like shape and provides suction power from the outside to the filtered water produced by the nanofiber web 112 of the filtering member 110. It can serve as a flow path that moves to the receiving port 133 side.

For this purpose, each frame (120a, 120b) constituting the support frame 120 may be provided in an approximately 'L' shape with one side open, and the filtrated water flowing in from the filtration member 110 may be stored on the inside. A moving flow path 123 may be formed (see FIG. 3).

Specifically, the plurality of frames 120a and 120b include a plate-shaped first plate 121 and a pair of frames each extending from the first plate 121 in a direction perpendicular to the first plate 121. It may include second plates 122a and 122b (see FIGS. 3 to 7).

Through this, the filtering member 110 is supported by a pair of second plates 122a and 122b facing each other by inserting the edge side into the space formed between the pair of second plates 122a and 122b. You can. At this time, the edge side of the filtering member 110 inserted into the space formed between the pair of second plates 122a and 122b may be inserted at a certain distance from the first plate 121.

That is, a restraining member 124 may be provided on the opposing surfaces of the pair of second plates 122a and 122b facing each other to limit the insertion depth of the filtering member 110 (see FIGS. 3 and 4). ).

Through this, in the process of fastening the edge side of the filtering member 110 to each frame 120a and 120b, the insertion depth of the filtering member 110 is limited through the restraining member 124, thereby limiting the filtering member ( A predetermined space may be formed between the edge end of 110 and the first plate 121.

Accordingly, when the filtering member 110 and the frames 120a and 120b are combined, the edge of the filtering member 110 is always maintained spaced apart from the first plate 121, thereby allowing fluid such as filtered water or washing water to flow. A movable flow path 123 may be formed.

In the present invention, the restraining member 124 may be formed on opposite surfaces of a pair of second plates 122a and 122b facing each other, but may be formed on any of the pair of second plates 122a and 122b. It may be formed only within one body. In addition, the restraining member 124 may be provided entirely or partially along the longitudinal direction of each frame. In addition, when the restraining members 124 are formed on opposing surfaces of a pair of second plates 122a and 122b facing each other, each restraining member 124 is spaced apart at a predetermined distance so that the filtrate can It can be moved toward the flow path 123 through the gap.

At this time, both ends of the plurality of frames 120a and 120b are cut diagonally, and when the two frames 120a and 120b are joined, the sides cut diagonally contact each other (see FIGS. 5 and 8). Here, the The plurality of frames may be cut at the same diagonal angle of approximately 45 degrees, but are not limited to this and may be cut at diagonal angles at different angles.

As a result, in the flat filter 100 for water treatment according to the present invention, the plurality of frames 120a and 120b are all processed into the same shape, so the frames 120a and 120b can be manufactured through the same process, so the frames can be assembled. Process work can be improved and thus productivity can be improved.

In addition, since the ends of the two frames (120a, 120b) that are coupled to each other are cut diagonally and come into contact with the entire end, the actual coupling area is expanded compared to the existing one, so the coupling force between the two frames (120a, 120b) is increased. increases, and thus, the bearing capacity for the filtering member 110 may increase.

In this way, since the plurality of frames 120a and 120b are joined over the entire area of both ends and connected without the need for an intermediate space as in the prior art, each flow path 123 can directly communicate with each other (FIG. 9).

At this time, the flow paths 123 of each frame 120a and 120b are in direct communication, but since the flow path 123 forms a closed loop closed to the outside, the support frame 120 is connected to the filtration member 110. The structure is changed to discharge the filtered water produced by to the outside. That is, the flow path 123 of the first frame 120b disposed adjacent to the receiving port 133 of the connecting member 130 communicates with the receiving port 133.

For example, the first frame 120b may have at least one through hole 128 formed on a portion of the surface facing the receiving port 133. That is, the first frame 120b may have a through hole 128 formed in the first plate 121 (see FIG. 6).

Here, the through hole 128 is preferably formed near a corner of the support frame 120 so as to be close to the receiving port 133. At this time, when the plurality of through holes 128 are provided, one through hole 128 is formed at a position close to the receiving port 133, and the remaining through holes 128 are formed in the first frame 120b. It can be formed at regular intervals toward the center.

As a result, the flow path 123 constituting the closed loop communicates with the receiving port 133, and the filtered water from which foreign substances are filtered moves into the interior of the filtering member 110 by the suction force provided from the pump (not shown). flows into each flow path 123 formed in the plurality of frames 120a and 120b, moves along the flow path 123 toward the through hole 128 of the first frame 120b, and then passes through the receiving port 133. It may be discharged to the outside.

In addition, in the backwashing process, after fluid such as washing water provided from the outside flows into the receiving port 133, it first flows toward the flow path 123 of the first frame 120b through the through hole 128, and then flows into each channel 123 of the first frame 120b. It may be supplied along each flow path 123 formed in the frames 120a and 120b.

The connecting member 130 is coupled to the corner side of the support frame 120 and is provided in plural pieces. This connecting member 130 can fix the ends of two adjacent frames 120a and 120b.

To this end, the connecting members 130 and 130' may include a body 131 with one side open so that end sides of adjacent frames 120a and 120b can be inserted (see FIGS. 7 to 12).

Accordingly, among the plurality of frames 120a and 120b constituting the support frame 120, the end sides of the two adjacent frames 120a and 120b are respectively inserted into the interior of the body 131, thereby forming the body ( 131).

For example, the end of one of the two frames 120a and 120b adjacent to each other is inserted into the first direction of the body 131, and the end of the other frame 120b is inserted into the body 131. It may be inserted in the second direction of 131 and placed in contact with the end of the frame 120a inserted in the first direction (see FIG. 9).

At this time, the flow path 123 formed in the frame 120a inserted in the first direction and the flow path 123 formed in the frame 120b inserted in the second direction are arranged to communicate with each other, thereby forming a plurality of frames 120a and 120b. ), all of the channels formed in each can be communicated.

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

Meanwhile, at least one 130 of the connecting members 130 and 130' may be provided with a receiving port 133 for discharging the filtered water moved along the flow path 123 formed in each frame 120a and 120b to the outside. (see Figure 7).

That is, among the plurality of connecting members 130 and 130' coupled to the corners of the support frame 120, the connecting member 130' on which the receiving port 133 is not formed serves to connect a pair of adjacent frames. On the other hand, the connecting member 130 on which the receiving port 133 is formed can also serve as an outlet that discharges the filtered water produced through the receiving port 133 to the outside.

Here, the receiving port 133 may be provided on only one of the plurality of connecting members, but it is preferable that it be provided on each of the two connecting members 130 to provide equal suction pressure to the filtering member 110. .

In addition, the receiving port 133 may be formed integrally with the body 131 of the connecting member 130 (see FIG. 7), but a coupling hole 131a is formed in the body 131 of the connecting member 130. It should be noted that a receiving port 133 having a predetermined length may be detachably coupled to the coupling hole 131a (see FIG. 12).

At this time, the connecting member 130 may form a passage 132 through which the filtered water moves between the receiving port 133 and the through hole 128 of the first frame 120b. That is, the passage 132 may be formed between the inner surface of the connecting member 130 and the first plate 121 of the first frame 120b.

For example, the passage 132 may be formed by a step surface 135 cut on the inner surface of the connecting member 130 facing the through hole 128. That is, as shown in FIG. 8, the connecting member 130 may be formed on the inner surface where the step surface 135 faces the first frame 120b, and the at least one through hole 128 and may be formed to communicate with both the receiving port 133.

As a result, the filtered water from which foreign substances have been filtered moves inside the filtering member 110 by the suction force provided from the pump (not shown), and flows into each flow path 123 formed in the plurality of frames 120a and 120b. After moving toward the passage 132 along the passage 123, it can be discharged to the outside through the receiving port 133.

On the contrary, in the backwashing process, fluid such as washing water provided from the outside flows in through the receiving port 133 and flows toward the passage 123 of the first frame 120b through the passage 132 and then flows into a plurality of frames. It can be supplied along each flow path 123 formed in (120a).

Here, the connecting member 130 may have the receiving port 133 disposed at the center of the area where the through hole 128 is formed.

For example, when only one through hole 128 is formed in the first plate 121 of the first frame 120b, the connecting member 130 is formed in a substantially straight line with the through hole 128. (133) can be placed. At this time, if the inner diameter of the through hole 128 is smaller than the inner diameter of the receiving port 133, the passage 132 may not be provided separately.

As another example, when a plurality of through holes 128 are formed in the first frame 120b, the connecting member 130 is a through hole 128 disposed on the outermost side of the plurality of through holes 128. The receiving port 133 may be placed at the same distance as. At this time, the connection member 130 may have the receiving port 133 disposed substantially at the center of the passage 132.

As a result, by increasing the path through which the filtered water collected through the flow path 123 of each frame 120a and 120b is discharged to the receiving port 133, a greater amount of filtered water is simultaneously discharged through the receiving port 133. can be discharged.

In addition, by shortening the path of the filtered water flowing between the through hole 128 and the receiver 133, the filtered water collected through the flow path 123 of each frame 120a and 120b can be more efficiently distributed to the receiver ( 133) can be discharged to the outside.

Meanwhile, the connecting member 130 may be fixed to the plurality of frames 120a and 120b inserted therein via an adhesive member (B).

At this time, the flat filter 100 for water treatment according to the present invention has an accommodation space on the connecting member 130 side to increase structural rigidity by increasing the bonding force between each frame (120a, 120b) and the connecting member 130. A forming part may be provided.

That is, a receiving space 137 for accommodating the adhesive member (B) is provided on the side of the connecting member 130 through the receiving space forming portion, so that a sufficient amount of the adhesive member (B) is connected to each frame (120a, 120b). It may be interposed between the connecting members 130 (see FIG. 11).

Through this, the flat filter 100 for water treatment according to the present invention expands the bonding area between the adhesive member (B) accommodated in the receiving space 137 and the frames 120a and 120b and the connecting member 130, thereby increasing the bonding strength. can increase confidentiality.

In addition, when the connecting member 130 is coupled to the frames 120a and 120b by this receiving space forming portion, a separation space is generated between the connecting member 130 and the frames 120a and 120b, thereby Since the connecting member 130 can be easily coupled to the frames 120a and 120b, fastening properties can be improved.

For example, the receiving space 137 for accommodating the adhesive member (B) may be formed on the inner surface of the open end side of the connecting member 130 through a step surface 136 cut along the open end.

That is, as shown in FIG. 8, the connecting member 130 may be formed on the open end side where the step surface 136 is inserted into the frame 120a and 120b, and may be formed on the entire edge of the open end. can be formed over

Accordingly, when the frames 120a and 120b are inserted between the open ends of the connecting members 130 facing each other, one surface of the frames 120a and 120b is the step surface 136 of the inner surface of the connecting members 130. ) is in surface contact with the remaining parts, and a free space corresponding to the depth of the step surface 136 is formed on the inner surface of the open end of the connecting member 130 to accommodate the adhesive member (B). A space 137 may be formed.

Meanwhile, the flat filter 100 for water treatment according to the present invention is provided with a spacing adjuster 134 so that each filter member 110 can be spaced apart when a plurality of filters are arranged in parallel with each other. It can be.

The spacing adjuster 134 may be provided on at least one of the plurality of frames 120a and 120b constituting the support frame 120, but may be provided on at least one of the connecting members 130 and 130'. It can be.

For example, the spacing adjuster 134 may include an extension plate 134a and a spacer 134c having a fastening hole 134b, and may be formed on one side of the connecting members 130 and 130'.

Specifically, the extension plate 134a may extend outward from the body 131 of the connecting members 130 and 130', and a fastening hole 134b through which the fastening bar 240 passes may be formed through ( 7).

Here, in the drawing, the fastening hole 134b is shown as penetrating the extension plate 134a in a circular shape, but it is not limited thereto and may have a shape corresponding to the cross-sectional shape of the fastening bar 240. For example, the fastening hole 134b may be formed in a circular shape, an arc shape, a polygonal cross-section, or a combination thereof.

At this time, the spacing member 134c may protrude from one surface of the extension plate 134a to a certain height to have a predetermined thickness, and the spacing member 134c may entirely surround or partially surround the edge of the fastening hole 134b. It may be provided to surround.

Here, the spacing member 134c may be formed on both sides of the extension plate 134a, or may be formed on only one side of the extension plate 134a, and may have different heights from one side of the extension plate 134a. It may be formed as a multi-stage structure with .

Here, the spacing between the plurality of filtering members 110 arranged in parallel to each other may be arranged to have a spacing of 3 mm or more, but is not limited thereto, and the height or thickness of the spacing member 134c can be appropriately changed to allow various spacings. It can be arranged to have.

Through this, when a plurality of flat filters 100 are connected to each other through the fastening bar 240, even if each flat filter 100 is completely brought into close contact with each other, the filtering members 110 arranged in parallel to each other are not connected to each other through the fastening bar 240. They can be spaced apart through (134c).

Accordingly, after arranging the plurality of flat filters 100 in parallel, fastening the fastening bar 240 so as to pass through each fastening hole 134b, and bringing each flat filter 100 into close contact with each other, Each filtering member 110 disposed adjacently may be spaced apart at a predetermined interval through the spacing member 134c (see FIG. 14).

That is, when configuring the flat filter module 200 using a plurality of flat filters 100, when each flat filter 100 connected to the fastening bar 240 is brought into close contact with each other, the operator must individually filter the flat filter module 200. Even if the gap between them is not adjusted, a uniform gap can be formed between the filtering members 110 by the spacing member 134c, and when fixing members such as nuts are fastened to both sides of the fastening bar 240, each The gap formed between the filtering members 110 can be maintained.

For this reason, the flat filter module 200 may have a liquid to be filtered on both sides of each filtration member 110, so that the filtration member 110 can be filtered on both sides of the filtration member 110 by suction force provided from the outside. It can move to the inside and produce filtered water.

In addition, when backwashing is performed to remove foreign substances attached to the filtering member 110 after repeated production of filtered water is performed, the filtering member 110 is exposed to the pressure of a fluid such as washing water supplied from the outside. ) may fall into the space between neighboring filtering members 110 after they are separated.

Meanwhile, the flat filter 100 for water treatment according to the present invention may include a filtration member 110 formed in a plate shape.

The filtration member 110 is for filtering foreign substances contained in a liquid to be filtered, such as wastewater. Although a known filtration member may be used, the nanofiber web 112 is disposed on both sides of the first support 111. It may be in the form of a plate (see Figure 2).

Here, the nanofiber web 112 is for filtering out foreign substances contained in the liquid to be filtered while the liquid to be filtered passes through the suction pressure, and the first support 111 is the nanofiber web ( 112) and serves as a passage through which the filtered water produced by the nanofiber web 112 moves. For example, the nanofiber web 112 may be made of a nanofiber web.

At this time, the filtration member 110 may be made of a three-layer structure in which the nanofiber web 112 is directly attached to both sides of the first support 111, but the nanofiber web 112 is attached to the second support ( It may have a five-layer structure that is respectively attached to both sides of the first support 111 via 113).

Here, the second support 113 may be provided to have a relatively thinner thickness than the first support 111 so as to reduce the overall thickness of the filtering member 110, and the first support 111 ) can be laminated on one side.

In this way, the nanofiber web 112 is not directly attached to the first support 111 but is attached through the second support 113, thereby improving adhesion and making it easy to attach.

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

Here, the second support 113 may be partly or entirely melted during the attachment process and attached to the first support 111.

At this time, the nanofiber web 112 may have a melting temperature higher than the process temperature performed in the fusion process so as not to melt due to heat, and the second support 113 may have a melting temperature higher than the process temperature performed in the fusion process. It may be provided to have a lower melting temperature.

Accordingly, the filtering member 110 may be implemented as a three-layer structure in which the second support 113 is completely melted, and only a part of the second support 113 is melted to form the nanofiber web 112 and the second support 113. It may be implemented as a five-layer structure by remaining between the first supports 111. However, the structure of the filtering member 110 is not limited to this, and any form in which one or more support layers are interposed between two nanofiber webs 112 may be used.

In addition, the first support 111 and the second support 113 may be a porous substrate so as to serve as a passage through which the filtrate produced by the nanofiber web 112 moves.

For example, the first support 111 and/or the second support 113 may be any one of commonly used known fabrics, knitted fabrics, or non-woven fabrics, and the non-woven fabrics include chemical bonding non-woven fabrics, thermal bonding non-woven fabrics, and air bonding fabrics. Known nonwovens such as dry nonwoven fabric such as lay nonwoven fabric, wet nonwoven fabric, spanless nonwoven fabric, needle punched nonwoven fabric, or melt blown can be used, and the pore size, porosity, basis weight, etc. of the nonwoven fabric depend on the desired water permeability, filtration efficiency, and mechanical strength. Please note that it may vary depending on the situation.

In other words, the material of the first support 111 and/or the second support 113 is not limited, and for example, synthetic fibers selected from the group consisting of polyester, polypropylene, nylon, and polyethylene, or cellulose. Natural fibers containing the system can be used.

However, by improving the bonding strength with the nanofiber web 112, separation between the first support 111 and/or the second support 113 and the nanofiber web 112 is prevented during application of the water treatment process, and separate adhesion is prevented. In order to prevent problems such as a decrease in water permeability due to the use of components, the first support 111 and the second support 113 are made of low melting point polymer compounds such as known low melting point polyester and low melting point polyethylene that can be heat fused. It may include polyester-based low-melting point composite fibers with low-melting point polyester as the sheath and polyethylene terephthalate as the core, and/or polyolefin-based low-melting point composite fibers with low-melting point polyethylene as the sheath and polypropylene as the core. You can.

Here, the melting point of the low melting point polymer compound may be 60 to 180°C, and the thickness of the first support 111 may be 2 to 200 ㎛, but is not limited thereto.

Meanwhile, the second support 113 applied to the present invention may be made of a different material from the first support 111, but is made of the same material as the first support 111, so that the first support 113 is used in the lamination process. Adhesion with (111) can be increased.

The nanofiber web 112 is used to filter out foreign substances contained in the liquid to be filtered and may be formed using nanofibers. At this time, the nanofiber may contain a fiber-forming ingredient including polyacrylonitrile (PAN) and polyvinylidene fluoride (PVDF), and an emulsifier that improves the miscibility of the fiber-forming ingredient.

Here, the fiber-forming ingredient may include highly hydrophilic polyacrylonitrile (PAN, hereinafter referred to as PAN) and highly hydrophobic polyvinylidene fluoride (PVDF, hereinafter referred to as PVDF).

Due to the nature of the material, PVDF can ensure the mechanical strength and chemical resistance of nanofibers, and PAN has high hydrophilicity, preventing hydrophobization of nanofibers due to PVDF and improving the hydrophilicity of nanofibers, thereby adding nanofibers to the filtering member. When attached, improved water permeability can be achieved.

Meanwhile, the nanofiber web 112 may include a nanofiber web with a three-dimensional network structure. For example, nanofibers containing fiber-forming ingredients and emulsifiers, including polyacrylonitrile (PAN) and polyvinylidene fluoride (PVDF), are laminated perpendicular to the spinning surface, and volatilize/desorb in the air during spinning. Due to the solvent failing to evaporate, fusion may occur at the portion where the fiber surfaces of the laminated nanofibers come into contact, forming a three-dimensional network structure.

The nanofiber web 112 may be provided as a single layer or may be provided as a multi-layer.

Meanwhile, the support frame 120 may be fixed to the edge side of the filtering member 110 via an adhesive member (A).

At this time, the flat filter 100 for water treatment according to the present invention is provided with a receiving space forming portion on the support frame 120 side to increase structural rigidity by increasing the coupling force between the filtration member 110 and the support frame 120. It can be.

That is, a receiving space 127 for receiving the adhesive member (A) is provided on the side of the support frame 120 through the receiving space forming portion, so that a sufficient amount of the adhesive member (A) is stored in the support frame 120 and the filtering member. (110) It may be interposed between.

Through this, the flat filter 100 for water treatment according to the present invention increases the bonding force by expanding the adhesive area between the adhesive member (A) accommodated in the receiving space 127, the filtering member 110, and the support frame 120. and can increase confidentiality.

Accordingly, during the backwashing process to remove foreign substances present on the filtration member 110 side, even if a fluid such as high-pressure washing water is provided from the outside to the filtration member 110 side, it is coupled to the edge side of the filtration member 110. It is possible to prevent the support frame 120 from being separated or separated from the filtering member 110.

In addition, during the backwashing process, it is possible to supply fluid such as washing water at a higher pressure through the improved coupling force between the filtration member 110 and the support frame 120, so that foreign substances attached to the filtration member 110 can be removed more quickly and completely. By being able to remove it properly, a decrease in filtration efficiency can be prevented and production yield can be improved.

For example, the receiving space 127 for accommodating the adhesive member (A) includes a protrusion 125 protruding along the longitudinal direction on the inner surface of each frame 120a and 120b constituting the support frame 120. It can be formed through.

That is, as shown in FIG. 3, the protrusion 125 may be formed to be located between the ends of the second plates 122a and 122b constituting the frames 120a and 120b and the flow path 123. It may protrude inward at a certain height from the inner surfaces of the second plates 122a and 122b along the longitudinal direction of the frames 120a and 120b.

Accordingly, when the edge side of the filtering member 110 is inserted between a pair of second plates 122a and 122b facing each other, one surface of the filtering member 110 is in line contact with the end of the protrusion 125. , A free space corresponding to the height of the protrusion 125 is formed on the inner surfaces of the second plates 122a and 122b, thereby forming a receiving space 127 that can accommodate the adhesive member (A).

At this time, the protrusions 125 protruding along the longitudinal direction of the frames 120a and 120b come into line contact with one surface of the filtering member 110 and serve to support the filtering member 110 and provide adhesive from the outside. It can also simultaneously serve to block the member A from moving toward the flow path 123.

Here, the formation position of the protrusion 125 can be appropriately changed if it is located between the flow path 123 and the ends of the second plates 122a and 122b, and the protrusion 125 is located between the ends of the second plates 122a and 122b. As it is relatively closer to the end of 122b), the amount of adhesive member (A) accommodated in the receiving space 127 increases, thereby further increasing the adhesive force.

Meanwhile, a plurality of protrusions may be provided on the inner surfaces of the second plates 122a and 122b, and the plurality of protrusions may be spaced apart and parallel to the longitudinal direction of the frames 120a and 120b.

At this time, the plurality of protrusions may be formed to have different heights, and may be formed to have larger protrusion heights from the ends of the second plates 122a and 122b toward the flow path 123.

Accordingly, among the plurality of protrusions, the protrusion formed at the position closest to the flow path 123 is formed to have the largest protrusion height, so that when the filtering member 110 is inserted, it comes into contact with one surface of the filtering member 110, The remaining protrusion does not come into contact with one surface of the filtering member 110, but is buried by the adhesive member A accommodated in the receiving space 127.

Because of this, the remaining protrusions can be integrated with the adhesive member (A), thereby more effectively preventing the frames 120a and 120b from being separated from the edge of the filtering member 110.

As another example, the receiving space 127 for accommodating the adhesive member (A) is a section formed by cutting along the longitudinal direction on the inner surface of each frame (120a', 120b') constituting the support frame 120. It can be formed through the car surface 126.

That is, as shown in FIG. 4, the frames 120a' and 120b' have a step surface 126 on the inner surfaces of the end sides of the second plates 122a and 122b constituting the frames 120a' and 120b'. It may be formed along the longitudinal direction of the frames 120a' and 120b'.

Accordingly, when the edge side of the filtering member 110 is inserted between a pair of second plates 122a and 122b facing each other, one surface of the filtering member 110 is one surface of the second plates 122a and 122b. It is in surface contact with the remaining portion excluding the step surface 126, and a free space corresponding to the depth of the step surface 126 is formed on the inner surface of the second plate (122a, 122b), thereby forming the adhesive member (A) An accommodation space 127 that can accommodate can be formed.

At this time, the frames 120a' and 120b' may have a plurality of step surfaces formed on the inner surfaces of the second plates 122a and 122b, and the plurality of step surfaces may be formed in a multi-stage manner with different heights and connected to each other. It may be formed to have a smaller depth as it moves from the ends of the second plates 122a and 122b toward the flow path 123.

Accordingly, among the plurality of step surfaces, the step surface formed at the position closest to the passage 123 may be formed to have the smallest depth, and at the position closest to the end sides of the second plates 122a and 122b. The step surface formed in can be formed to have the greatest depth. Due to this, when the adhesive member (A) is injected into the receiving space 127, the adhesive member (A) can be smoothly introduced into the receiving space (127).

Meanwhile, the above-described flat filter for water treatment 100 may be configured as a single modular flat filter module 200 for water treatment by arranging a plurality of them in parallel and fastening them to each other via a fastening bar 240.

For example, the flat filter module 200 for water treatment may include the above-described flat filter 100 for water treatment, a fixed frame 220, and a common receiving member 230, as shown in FIG. 13.

The flat filter 100 for water treatment may include a support frame 120 and a connecting member 130, and foreign substances are filtered out in the process of the liquid to be filtered flowing into the filtration member 110. It is intended to produce.

A plurality of such flat filters 100 for water treatment may be arranged parallel to each other, and since the specific contents are the same as those described above, detailed descriptions will be omitted.

The fixing frame 220 is for fixing a plurality of flat filters 100 for water treatment arranged in parallel with each other.

This fixed frame 220 may be made of a plate-shaped member, but may be provided as a frame structure so that the liquid to be filtered can flow into the plurality of plate-shaped filters 100.

For example, the fixing frame 220 includes a front frame 221 and a rear frame ( 221), and both ends of the fastening bar 240 for interconnecting the plurality of flat filters 100 may be coupled to the front frame 221 and the rear frame 221, respectively. (See Figure 14).

Here, the front frame 221 and the rear frame 221 are provided with a fastening hole (not shown) into which the end side of the fastening bar 240 is inserted, so that it can be inserted in a fitting manner, and the front frame 221 And a through hole (not shown) penetrating the rear frame 221 may be provided so that both ends of the fastening bar 240 pass through and be fixed through a separate fixing member.

At this time, a separate handle 223 may be provided on one side of the fixing frame 220 so that a user or worker can easily attach the modularized flat filter module 200.

In addition, each member constituting the front frame 221 and the rear frame 221 may be a plate-shaped bar with a predetermined width and length, an 'I' beam, or an 'ㄱ' beam, or may be in the form of a square pipe. It may be provided.

In this way, the flat filter module 200 for water treatment according to the present invention may have a plurality of flat filters 100 arranged in parallel with each other, and the filtration member 110 provided in each flat filter 100 They can be arranged to be spaced apart at a predetermined interval through the spacing member 134c.

Accordingly, the suction force provided from the outside, for example, the suction force provided from one pump (not shown), is transmitted to the plurality of flat filters 100 through each receiving port 133, thereby forming a plurality of flat filters in one process. Filtered water can be produced individually in the type filter 100.

As a result, filtered water can be produced in large quantities at the same time through a plurality of plate-type filters 100, and the production efficiency of filtered water can be increased.

On the other hand, when the flat filter module 200 for water treatment according to the present invention is provided with a plurality of flat filters 100, it simultaneously exerts suction power toward the receiving port 133 provided in each flat filter 100. A common receiving member 230 may be provided to provide and integrate the filtered water produced from each plate-type filter 100 into one (see FIG. 13).

That is, the common receiving member 230 is connected to each receiving port 133 via a tube 250, so that the suction force provided from the outside is transmitted to each flat filter 100 through the common receiving member 230. is transmitted to the side, and the filtrated water is individually produced in each flat filter 100 through the transmitted suction force, and the filtrated water produced by each flat filter 100 is supplied to the collection space 132 and the receiver by the suction force. It can be integrated to the common receiving member (230) via (133).

Such a common receiving member 230 may be provided as one, but when each flat filter 100 is provided with two receiving ports 133, it is provided in two pieces to correspond to the number of receiving ports 133. It can be connected one-to-one with each receiving port 133.

To this end, the common receiving member 230 includes a main body 231 having an inlet 232 connected to each receiving port 133 and a tube 250, and each plate-type filter 100. It includes an outlet 233 that discharges the filtered water flowing into the main body 231 to the outside or provides a suction force provided from the outside to the receiver 133.

The main body 231 may have a storage space 234 formed so that filtrated water flowing in from the receivers 133 provided in each flat filter 100 can temporarily collect.

The inlet 232 is connected to the receiver 133 and serves to introduce filtered water discharged from the receiver 133 into the storage space 234 of the main body 231.

At this time, the inlet 232 may be provided in plural pieces so that each can be connected to a plurality of receivers 133, and the plurality of inlets 232 may be connected to the plurality of receivers 133 in a one-to-one match. You can.

Here, the plurality of inlets 232 may be connected one to one via the receiving port 133 and the tube 250, but the plurality of receiving ports 133 are directly connected to the common receiving member 230. It may be.

Meanwhile, when the inlet 232 and the receiving port 133 are connected through a tube, the common receiving member 230 may be arranged to be located in the middle of the length of the fixed frame 220.

This is to prevent the tube 250 from bending during the process of connecting the tube 250 and interfering with the flow of filtered water when the gap between the receiver 133 and the inlet 232 is too narrow.

The outlet 233 may serve to discharge the filtered water flowing into the storage space 234 through the inlet 232 to the outside, for example, to a filtered water storage tank (not shown).

The flat filter module 200 for water treatment according to the present invention may be applied to a known wastewater treatment system.

Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiment presented in the present specification, and those skilled in the art who understand the spirit of the present invention can add components within the scope of the same spirit. , other embodiments can be easily proposed by change, deletion, addition, etc., but this will also be said to be within the scope of the present invention.

100: Flat filter for water treatment 110: Filtration member
111: first support 112: nanofiber web
113: second support 120: support frame
120a,120b,120a',120b': Frame
121: 1st edition 122a,122b: 2nd edition
123: Euro 124: Constraint member
125: protrusion 126: step surface
127,137: Accommodating space 128: Through hole
130,130': Connecting member 131: Body
132: Passage 133: Receiving port
134: Spacing adjuster 134a: Extension plate
134b: fastening hole 134c: spacing member
135,136: Step surface 200: Flat filter module for water treatment
220: fixed frame 221: front frame
222: Rear frame 223: Handle
230: Common receiving member 231: Main body
232: inlet 233: outlet
234: storage space 240: fastening bar
250: tube

Claims (19)

Each is provided with a porous first support and a nanofiber web formed on both sides of the first support, wherein the first support acts as a passage for the filtered water through which foreign substances are filtered as the liquid to be filtered passes through the nanofiber web. and a filtering member formed in a plate shape with a predetermined area;
A support frame fitted to an edge of the filtering member to support the filtering member, and having one end of the filtering member inserted into the frame; and
It includes a plurality of connecting members coupled to the corner side of the support frame,
The support frame includes a first plate and a pair of second plates each extending from both ends of the first plate so that one end of the filter member can be inserted,
The support frame includes a flow path therein, which is a space formed by one end of the filtering member being spaced apart from the inner surface of the first plate,
As one end of the first support is exposed toward the flow path inside the support frame, the space acts as a flow path through which the filtered water flows from one end of the first support,
The support frame includes a plurality of frames where both ends are cut diagonally and are in contact with each other,
At least one of the plurality of connecting members includes a receiving port for discharging the filtered water to the outside,
A flat filter for water treatment wherein the flow path of the first frame disposed adjacent to the receiving port communicates with the receiving port. According to paragraph 1,
The first frame is a flat filter for water treatment in which at least one through hole is formed on a portion of a surface facing the receiving port. According to paragraph 2,
A flat filter for water treatment in which a passage through which the filtered water moves is formed between the receiving port and the through hole. According to paragraph 3,
The passage is a flat filter for water treatment wherein the passage is formed by a step surface cut on an inner surface opposing the through hole of the connection member where the receiving port is formed. According to paragraph 2,
The receiving port is a flat filter for water treatment disposed at the center of the area where the through hole is formed. According to paragraph 1,
A flat filter for water treatment in which a receiving space for accommodating an adhesive member is formed between the inner surface of the connecting member where the receiving port is formed and the frame. According to clause 6,
A flat filter for water treatment wherein the receiving space is formed by a step surface cut on an inner surface of an open end side of the connecting member where the receiving port is formed. According to paragraph 1,
A flat filter for water treatment in which a restraining member for limiting the insertion depth of the filtering member is protrudingly formed on opposing surfaces of the pair of second plates. According to clause 8,
A flat filter for water treatment in which a receiving space for accommodating an adhesive member is formed between the inner surface of the second plate and the filtering member. According to clause 9,
The receiving space is formed by at least one protrusion protruding along the longitudinal direction of the frame between an end of the second plate and the passage, and the protrusion protrudes inward at a certain height from the inner surface of the second plate. And
The protrusions are formed in plural pieces spaced apart from the end of the second plate in a direction toward the flow path, and the plurality of protrusions have a larger protrusion height from the end of the second plate toward the flow path. A flat plate filter for water treatment. A support frame fitted on the edge of the filtering member to support the plate-shaped filtering member and forming a flow path through which the filtered water produced through the filtering member flows; and
It includes a plurality of connecting members coupled to the corner side of the support frame,
The support frame includes a plurality of frames where both ends are cut diagonally and are in contact with each other,
At least one of the plurality of connecting members includes a receiving port for discharging the filtered water to the outside,
A flow path of the first frame disposed adjacent to the receiving port communicates with the receiving port,
The plurality of frames include a first plate and a pair of second plates each extending from both ends of the first plate so that an edge side of the filtering member can be inserted,
A restraining member is protruding on opposing surfaces of the pair of second plates to limit the insertion depth of the filtering member,
A receiving space for accommodating an adhesive member is formed between the inner surface of the second plate and the filtering member,
The receiving space is formed by at least one protrusion protruding along the longitudinal direction of the frame between an end of the second plate and the passage, and the protrusion protrudes inward at a certain height from the inner surface of the second plate. become,
The protrusions are formed in plural pieces spaced apart from the end of the second plate in a direction toward the flow path, and the plurality of protrusions have a larger protrusion height from the end of the second plate toward the flow path. A flat plate filter for water treatment. According to clause 9,
The receiving space is a flat filter for water treatment wherein the receiving space is formed through at least one step surface cut along the longitudinal direction of the frame on an inner surface of an end side of the second plate. According to clause 12,
A flat filter for water treatment in which the step surface is formed in a multi-stage manner with different heights. According to paragraph 1,
A flat filter for water treatment, wherein at least one of the plurality of connecting members is provided with a spacing adjuster for adjusting the spacing between neighboring filtering members. According to clause 14,
The connecting member is,
A body coupled to a corner of the support frame; and
A flat filter for water treatment comprising a spacing adjuster having a fastening hole through which a fastening bar having a predetermined length passes. According to clause 15,
The spacing adjuster is a water treatment device that includes a spacing member that protrudes at a predetermined height on at least one side of the extension plate to adjust the gap between an extension plate extending from the body and through which the fastening hole is formed, and a filtering member disposed in parallel with each other. For flat filter. A support frame fitted on the edge of the filtering member to support the plate-shaped filtering member and forming a flow path through which the filtered water produced through the filtering member flows; and
It includes a plurality of connecting members coupled to the corner side of the support frame,
The support frame includes a plurality of frames where both ends are cut diagonally and are in contact with each other,
At least one of the plurality of connecting members includes a receiving port for discharging the filtered water to the outside,
A flow path of the first frame disposed adjacent to the receiving port communicates with the receiving port,
The plurality of frames include a first plate and a pair of second plates each extending from both ends of the first plate so that an edge side of the filtering member can be inserted,
A restraining member is protruding on opposing surfaces of the pair of second plates to limit the insertion depth of the filtering member,
A receiving space for accommodating an adhesive member is formed between the inner surface of the second plate and the filtering member,
The receiving space is formed through at least one step surface cut along the longitudinal direction of the frame on an inner surface of an end side of the second plate,
A flat filter for water treatment in which the step surface is formed in a multi-stage manner with different heights. According to paragraph 1,
The filtration member is a flat filter for water treatment further comprising a second support disposed between the nanofiber web and the first support. A flat filter for water treatment according to any one of claims 1 to 18, which includes at least one receiving port through which filtered water filtered through the filtering member is discharged and is arranged in parallel;
A fixing frame for fixing the plurality of flat filters for water treatment arranged in parallel to each other via at least one fastening bar; and
A flat filter module for water treatment comprising: at least one common receiving member connected to a one-to-one match with the receiving ports provided in each of the flat filters for water treatment to collect the filtrated water discharged from each receiving port.

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