KR102602664B1 - Filter for flat type water treatment and filter module using the same - Google Patents

Abstract

A flat filter for water treatment is provided. A flat filter for water treatment according to an embodiment of the present invention includes a flat filtration member including a first support and a membrane formed on both sides of the first support; and a support frame that is fitted to the edge of the filtration member to support the filtration member and forms a flow path through which the filtrated water flows from at least one side of the filtration member. Here, a portion of the filtering member is disposed within the flow path or at the edge of the flow path so that the first support is exposed.

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 has an open end for inserting a filtering member on one side, and a flow path is formed on the other side. However, in the conventional case, there is a problem of low filtration efficiency because the passage through which the filtrated water produced through the filtration member flows into the flow path is structurally narrow.

KR 10-1242080 B1

The present invention was developed in consideration of the above points, and provides a flat filter for water treatment that can improve filtration efficiency by increasing the amount of filtered water flowing into the flow path from the filtration member, and a flat filter module including the same. The purpose is to provide.

In order to solve the above-described problem, the present invention includes a piece-shaped filtration member including a first support and a membrane formed on both sides of the first support; and a support frame fitted to the edge of the filtration member to support the filtration member and forming a flow path through which filtered water flows from at least one side of the filtration member. do. Here, a portion of the filtering member is disposed within the flow path or at an edge of the flow path so that the first support is exposed.

According to a preferred embodiment of the present invention, the membrane may be removed from at least a portion of both sides of the portion disposed within the flow path of the filtering member, thereby exposing the first support to the flow path.

Additionally, the filtering member may have a plurality of through holes formed in a portion disposed within the flow path.

Additionally, the filtering member may have a plurality of semicircular grooves formed on one side.

In addition, the support frame includes a plurality of frames coupled to the edge side of the filtering member, and the plurality of frames extend from both ends of the first plate so that the first plate and the edge side of the filtering member can be inserted. Each may contain a pair of extended second editions.

Additionally, the flow path may be formed by the inner surfaces of each of the first plate and the second plate and one surface of the first support.

Additionally, only the first support on one side of the filtering member can face the first plate.

Additionally, the frame may further include a restraining member protruding from the inner surface of the first plate toward the flow path 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.

In addition, the plurality of frames are arranged so that one end is in contact with the other end, and the end sides that are adjacent to each other and form a corner of the support frame have a collection space where filtered water flowing in different directions through the flow path meets. is formed, and the collection space may communicate with a receiving port for discharging the filtered water to the outside.

In addition, the flat filter for water treatment further includes a plurality of connecting members coupled to a corner side of the support frame, and at least one of the plurality of connecting members has a gap for adjusting the gap between neighboring filtering members. A control device may be provided.

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, at least one of the connecting members may further include a receiving port for discharging the filtered water flowing into the flow path to the outside.

Additionally, the filtering member may further include a second support disposed between the membrane and the first support.

At this time, the membrane may be made of a nanofiber web formed of nanofibers.

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, by increasing the area of the support of the filtration member exposed to the flow path, the amount of filtered water flowing into the flow path from the filtration member can be increased, thereby improving filtration efficiency, thereby shortening the filtration time or wastewater By increasing the throughput, the economic feasibility of sewage treatment 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 to 6 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 8 is a diagram showing a connecting member applied to the flat filter for water treatment according to the present invention;
Figure 9 is a view showing a state in which the connecting member and the support frame applied to the flat filter for water treatment according to the present invention are separated;
Figure 10 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 11 is a diagram showing the movement path of filtered water flowing into the water intake port from 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.

The flat filter 100 for water treatment according to an embodiment of the present invention includes a filtration member 110 and a support frame 120, as shown in FIGS. 1 and 2.

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, it is a plate-shaped device with membranes 112 disposed on both sides of the first support 111. It may be in the form.

Here, the membrane 112 is for filtering out foreign substances contained in the liquid to be filtered while the liquid to be filtered passes through suction pressure, and the first support 111 supports the membrane 112. And serves as a movement path through which the filtered water produced by the membrane 112 moves. For example, the membrane 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.

The support frame 120 is coupled to the edge side of the filtering member 110 and supports the edge side of the filtering member 110, thereby allowing the filtering member 110 to maintain its plate-shaped shape.

Such a support frame 120 may be made of one member to entirely or partially support the edge of the filtering member 110, but a plurality of frames 120a and 120b may be formed to support the edge of the filtering member 111. It can be implemented in a form that is coupled to the side.

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 filtration member 110 in a plate-like shape and also directs the filtered water produced by the nanofiber web 112 to the receiving port 133 through suction force provided from the outside. It can play the role of a flow path that moves to the 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 inserted with its edge side into the open end of the frame 120a and 120b, that is, into the space formed between the pair of second plates 122a and 122b, so that the pair of filtering members 110 face each other. It can be supported by the second plates 122a and 122b.

At this time, a portion of the filtering member 110 is disposed within the passage 123 or at the edge of the passage 123 so that the first support 111 or the second support 113 is exposed.

Through this, the area in contact between the first support 111 and the flow path 123 increases, that is, the area through which filtrated water flows from the first support 111 to the flow path 123 increases, thereby increasing the area in which the filtrated water flows into the flow path 123 from the first support 111. The amount of filtered water flowing into the flow path 123 can be increased due to the suction force, and thus filtration efficiency can be improved while using the filter member 110 of the same area.

In addition, during the backwashing process, the increased inflow area between the flow path 123 and the first support 111 or the second support 113 allows the supply of fluid such as fine axle water at a higher pressure, so that the filtration member Foreign substances attached to (110) can be removed more quickly and completely, thereby preventing a decrease in filtration efficiency and improving production yield.

For example, the filtering member 110 is disposed at the edge of the flow path 123. 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, as shown in FIG. 3, 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. there is. Here, the restraining member 124 may be formed as a step surface 124 cut along the longitudinal direction on the inner surfaces of the frames 120a and 120b.

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 maintaining the first plate 121. A flow path 123 through which a fluid such as filtered water or washing water can move may be formed by the inner surfaces of each of the and second plates 121a and 121b and one surface 111a of the first support 111.

Through this, the first support 111 or the second support 113 is in direct contact with the flow path 123 corresponding to the area exposed to the flow path 123, that is, corresponding to the width of the flow path 123, so that the filtrated water flows through the flow path. As the area that can be moved to (123) increases, filtration efficiency can be improved.

At this time, the width of the passage 123 is preferably configured to be substantially equal to the width of the first support 111 or the sum of the widths of the first support 111 and the second support 113. That is, the flow path 123 and the first support 111 or the second support 113 are formed so as to form a contact area between the flow path 123 and the first support 111 or the second support 113 as wide as possible. The width can be determined.

In addition, the filtering member 110 may have a plurality of semicircular grooves (not shown) formed on the exposed surface 111a of the first support 111. That is, the filtering member 110 has a plurality of semicircular grooves (not shown) formed on one side inserted between the second plates 121a and 121b, and thereby the flow path 123 is formed on one side of the filtering member 110. ) increases by the inner surface of the semicircular groove.

As a result, the amount of filtered water moving from the filtering member 110, especially the first support 111 or the second support 113 to the flow path 123 is further increased, thereby further improving filtration efficiency.

As another example, a portion of the filtration member 110' is disposed within the flow path 123a, and the nanofiber web 112 is removed from at least a portion of both sides of the portion disposed within the flow path 123a to form the first support 111. ) may be exposed to the flow path 123a.

At this time, the frames 120a' and 120b' do not have separate restraining members, and one surface of the filtering member 110' can be in contact with the first plate 121. In addition, so that the filtering member 110' can be inserted into the flow path 123a, the width of the flow path 123a must be at least larger than the width of the filtering member 110'.

That is, as shown in FIG. 4, the filtering member 110' extends to the end of the passage 123a with the nanofiber web 112 removed so that a portion 111b of the first support 111 is exposed. can be inserted, and thus the filtering member 110' can be in contact with the first plate 121.

Here, since the nanofiber web 112 is partially removed from the filtering member 110', only the exposed surface 111a of the first support 111 can be in contact with the inner surface of the first plate 121. Here, the explanation is limited to the first support 111 that is exposed to the flow path 123a, but this is the case where the filtering member 110' has a three-layer structure, and the filtering member 110' has a five-layer structure. In this case, the second support 113 may be exposed. Therefore, in the following description, unless otherwise specified, the first support 111 may be understood to include the second support 113.

As a result, the area through which the filtrated water can move between the filtration member 110' and the flow path 123a is the area of the portion 111b from which the nanofiber web 112 is removed from both sides of the filtration member 110'. may increase in response.

At this time, since the exposed surfaces 111a on both sides of the first support 111 are in contact with the first plate 121 and the filtrated water cannot move through them, the nanofiber web 112 is used to improve filtration efficiency. It is preferable that the area of the portion to be removed (111b) is formed to be larger than the area corresponding to the width of the first support (111).

Here, the portion 111b of the filtering member 110' from which the nanofiber web 112 is removed may be formed to be equal to or smaller than the height of the passage 123a. That is, the nanofiber web 112 of the first support 111 may be removed so that it is completely exposed in the flow path 123a.

In addition, the filtering member 110' may have a plurality of through holes (not shown) formed in a portion disposed within the flow path 123. At this time, the filtration member 110' has a through hole (not shown) only in a portion 111b of the first support 111 with the nanofiber web 112 removed from the portion disposed within the flow path 123. However, the through hole may be formed without the nanofiber web 112 being removed, that is, penetrating the entire first support 111 and the nanofiber web 112.

As a result, the area in contact between the first support 111 or the second support 113 and the flow path 123a increases by an area corresponding to the inner surface of the through hole (not shown), thereby increasing the area of the first support 111 or the second support 113 and the flow path 123a. The amount of filtered water moving from the support 113 to the flow path 123a increases, thereby further improving filtration efficiency.

As another example, the upper surface of the filtering member 110' may be exposed to the flow path. At this time, the frame (120a", 120b") has an edge side of the filtering member (110) inserted into the space formed between the pair of second plates (122a, 122b) spaced a certain distance from the first plate (121). It can be formed as much as possible.

That is, as shown in FIG. 5, the frames 120a" and 120b" are positioned on opposing surfaces of a pair of second plates 122a and 122b facing each other and the filtering members 110', 110", and 110. A restraining member 124a may be provided to limit the insertion depth of "') (see FIGS. 5 to 7).

At this time, the restraining member 124a may protrude from the inner surface of the first plate 121 toward the flow path 123a. In addition, the restraining member 124a may be provided entirely or partially along the longitudinal direction of each frame.

As a result, the filtering member 110' allows filtrated water to move through not only the exposed surfaces 111b on both sides of the first support 111 within the flow path 123b but also the exposed surface 111a on the upper side, as shown in FIG. 4 Filtration efficiency can be further improved compared to .

As another example, the filtration member 110" may have a plurality of through holes 110a formed in the portion disposed in the flow path 123a. At this time, the filtration member 110" may be formed with a nanofiber web on both sides. (112) may not be removed.

That is, as shown in FIG. 6, the filtration member 110" is disposed in the flow path 123b on the upper side of the filtration member 110" without the nanofiber web 112 being removed. After the plurality of through holes 110a are formed, they may be inserted into the frames 120a" and 120b" provided with a restraining member 124a protruding from the first plate 121 on the upper side of the flow path 123b.

At this time, since the nanofiber web 112 is not removed from both sides of the filtration member 110", the passage through which the filtered water can move is limited to the upper exposed surface 111a, and therefore a plurality of through holes 110a By forming, the area of the passage can be increased.

As a result, the filtering member 110" allows filtered water to move not only through the exposed surface 111a on the upper side of the first support 111 within the flow path 123b but also through the inner surface of the through hole 110a, thereby filtering the water. Efficiency can be improved.

In addition, as shown in FIGS. 4 and 5, the nanofiber web 112 of the filtering member 110" may be removed from some of both sides.

As a result, the filtering member 110" allows filtrated water to move through exposed surfaces on both sides of the filtering member 110", in addition to the upper side of the filtering member 110" and the inner surface of the through hole 110a. Therefore, filtration efficiency can be further improved compared to Figure 5 or Figure 6.

As another example, the filtration member 110"' may have a plurality of semicircular grooves 110b formed on one side. At this time, the nanofiber web 112 is removed from both sides of the filtration member 110"'. It may not work.

That is, as shown in FIG. 7, the filtration member 110"' has a plurality of semicircular grooves 110b on the upper surface of the filtration member 110"' in a state in which the nanofiber web 112 is not removed. After being formed, it can be inserted into the frames 120a" and 120b" provided with a restraining member 124a protruding from the first plate 121 on the upper side of the flow path 123b.

At this time, since the nanofiber web 112 is not removed from both sides of the filtration member 110'', the passage through which the filtered water can move is limited to the upper exposed surface 111a, and a plurality of semicircular grooves 110b ), the area of the passage can be increased.

As a result, the filtering member 110'' allows filtrated water to move through the inner surface of the semicircular groove 110b as well as the exposed surface 111a on the upper side of the first support 111 within the flow path 123b. Filtration efficiency can be improved.

In addition, the nanofiber web 112 may be removed from some of both sides of the filtering member 110'', as shown in FIGS. 4 and 5.

As a result, the filtering member 110"' allows filtered water to pass through exposed surfaces on both sides of the filtering member 110"', in addition to the upper side of the filtering member 110"' and the inner surface of the semicircular groove portion 110b. Because it can move, filtration efficiency can be further improved compared to Figure 5 or Figure 7.

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. It may be interposed between (110).

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 125a 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 125a 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 the 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 125a. , A free space corresponding to the height of the protrusion 125a 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 protrusion 125a, which protrudes along the longitudinal direction of the frames 120a and 120b, is in line contact with one surface of the filtering member 110 and serves to support the filtering member 110 and an adhesive supplied 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 125a 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 125a 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 located on the inner surface of each frame (120a', 120b', 120a", 120b") constituting the support frame 120 in the longitudinal direction. It can be formed through a step surface 126 that is cut along.

That is, as shown in FIGS. 4 to 7, the frames 120a', 120b', 120a", 120b" have a step surface 126 that connects the frames 120a', 120b', 120a", 120b". It may be formed on the inner surface of the end sides of the second plates 122a and 122b, and may be formed along the longitudinal direction of the frames 120a', 120b', 120a", and 120b".

Accordingly, when the edge side of the filtering member (110', 110", 110"') is inserted between a pair of second plates (122a, 122b) facing each other, the filtering member (110', 110", 110"') ') is in surface contact with the rest of the surfaces of the second plates 122a and 122b, excluding the step surface 126, and the inner surfaces of the second plates 122a and 122b are provided with the step surface 126. By forming a free space corresponding to the depth, an accommodation space 127 capable of accommodating the adhesive member (A) can be formed.

At this time, the frames 120a', 120b', 120a", 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 have different heights. It may be formed in a multi-stage manner and connected to each other, and 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 flat filter 100 for water treatment according to the present invention may include connecting members 130 and 130' coupled to the corner sides of the support frame 120.

A plurality of such connecting members 130 and 130' may be provided, and may be coupled to the corner side of the support frame 120 to fix the ends of the 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. 8 to 10).

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. 10).

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, 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 ( 8).

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, 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 8).

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. 8), 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 on which the receiving port 133 is formed has flow paths 123 formed in each of the two adjacent frames 120a and 120b when combined with the two frames 120a and 120b. A communicating collection space 132 may be formed, and the collection space 132 may be formed at a location in communication with the receiving port 133.

For example, the collection space 132 includes two frames (120a, 120a, It can be formed at the end side of 120b), and the collection space 132 can be formed by cutting the end of one of the two frames 120b inserted into the connecting member 130 so that they do not fit together. (See Figure 10).

Accordingly, the filtrated water moving along the flow path 123 formed in one of the two frames 120a and 120b and the flow path 123 formed in the other frame 120a and 120b are mixed. The filtered water that moves along meets each other in the collection space 132 and can be discharged to the outside through the receiving port 133 connected to the collection space 132 (see FIG. 11).

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 collection space 132 along the flow path 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 then passes through the collection space 132 toward each flow path 123 formed in the plurality of frames 120a and 120b. can be supplied.

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 filtration member 110 and a support frame 120, 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 110,110',110",100"': Filtration member
110a: Through hole 110b: Semicircular groove
111: first support 111a, 111b: exposed surface
112: nanofiber web 113: second support
120: support frame
120a,120b,120a',120b',120a",120b": Frame
121: 1st edition 122a,122b: 2nd edition
123,123a,123b: Euro 124,124a: Confining member
125a: protrusion 126: step surface
127: Accommodating space 130,130': Connecting member
131: body 132: collection space
133: Receiving port 134: Spacing adjustment port
134a: Extension plate 134b: Fastening hole
134c: Separation member 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 (21)

A flake-shaped filtration member each including a porous first support including two surfaces and a membrane formed on both sides of the first support; and
It includes a support frame into which one end of the filtering member is inserted to support the filtering member,
The first support acts as a passage for the filtered water through which foreign substances have been filtered as the liquid to be filtered passes through the membrane,
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 when one end of the filtering member is spaced apart from the inner surface of the first plate or the inner surface of the second plate,
As one end of the filtering member is disposed within the flow path or at an edge of the flow path and one end of the first support is exposed toward the flow path inside the support frame, the space is formed from one end of the first support to the filtered water. A flat filter for water treatment that acts as a flow path through which water flows. According to paragraph 1,
The filtration member is a flat filter for water treatment in which the membrane is removed from at least a portion of both sides of the portion disposed within the flow path, and the first support is exposed to the flow path. According to paragraph 1,
The filtration member is a flat filter for water treatment in which a plurality of through holes are formed in a portion disposed within the flow path. According to paragraph 1,
The filtration member is a flat filter for water treatment in which a plurality of semicircular grooves are formed on one side. According to paragraph 1,
The support frame includes a plurality of frames coupled to an edge side of the filtering member,
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 filter member can be inserted. According to clause 5,
The flow path is a flat filter for water treatment formed by inner surfaces of each of the first plate and the second plate and one surface of the first support. According to clause 5,
A flat filter for water treatment in which only the first support member faces the first plate on one side of the filtration member. According to clause 5,
The frame is a flat filter for water treatment, wherein the frame further includes a restraining member protruding from the inner surface of the first plate toward the flow path to limit the insertion depth of the filtering member. According to clause 5,
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. Flat type 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 5,
The plurality of frames are arranged so that one end is in contact with the other end, and a collection space is formed on the end side constituting a corner of the support frame adjacent to each other, where filtrate water flowing in different directions through the flow path meets. A flat filter for water treatment in which the collection space communicates with a receiving port for discharging the filtered water to the outside. According to paragraph 1,
Further comprising a plurality of connecting members coupled to the corners of the support frame,
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 paragraph 1,
The filtration member is a flat filter for water treatment, further comprising a second support disposed between the membrane and the first support. A flat filter for water treatment according to any one of claims 1 to 14, which includes at least one receiving port through which filtrated 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. delete delete delete delete delete delete

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