KR20240042759A - Filtration device using hollow fiber membrane filter - Google Patents

Abstract

The present invention is a hollow fiber membrane filtration device that can increase the number of hollow fibers that can be installed per unit area by improving the structure of the hollow fiber membrane filter module. The hollow fiber membrane filter module includes a water collection pipe for discharging filtered water and filtering wastewater. It includes a filter element and a mounting socket for connecting the water collection pipe and the filter element. At this time, the water collection pipe includes a header tube with a transfer path for discharging filtrated water, a mounting slot formed on one side of the header tube, connected to the transfer path, and extending in the longitudinal direction of the header tube, and the header tube. It consists of a first plug formed at one end of the header tube and inserted into and fixed to the frame, and a second plug formed at the other end of the header tube and seated and fixed to the frame. Additionally, the mounting socket extends in one direction so that it can be installed in the mounting slot, and an end of the filter member is inserted, and the end of the filter member inserted into the mounting socket is fixed by a potting agent.

Description

Hollow fiber membrane filtration device {FILTRATION DEVICE USING HOLLOW FIBER MEMBRANE FILTER}

The present invention relates to a hollow fiber membrane filtration device, and more specifically, to a hollow fiber membrane filtration device that can maximize the filtration amount by improving the structure of the hollow fiber membrane filter module and allows easy and simple assembly and installation of the hollow fiber membrane filter module.

A hollow fiber membrane filter is a filtration device that uses hollow fiber, a thin fiber with numerous small pores on the surface and an empty space in the middle, as a separation membrane.

A hollow fiber membrane filter is a device that effectively filters a multi-component liquid mixed with various substances by excluding substances larger than the pore size and selectively passing only specific substances smaller than the pore size.

Such hollow fiber membrane filters have been widely used in ultrafiltration and precision filtration fields such as sterile water and drinking water production, and have recently been widely applied to solid-liquid separation to separate sludge and treated water instead of existing sedimentation tanks in sewage treatment plants.

Registered Patent Publication No. 10-1333636 (2013.11.27.) discloses a 'filtration device using a hollow fiber membrane filter' applied and registered by the present applicant.

A filtration device using a conventional hollow fiber membrane filter includes a frame and a plurality of hollow fiber membrane filters arranged in parallel inside the frame. At this time, the hollow fiber membrane filter is composed of a filter member in which a plurality of hollow fibers are bundled together, a header tube connected to the frame, and a plurality of connectors connecting the filter member to the header tube.

According to the filtration device using the hollow fiber membrane filter of the above-described configuration, contaminants in wastewater are removed in the process of passing through the pores formed in the hollow fiber of the filter member, and the filtrated water from which contaminants are removed through the filter member is transferred to the header tube and frame. It is discharged to the outside along the discharge path formed in .

However, the conventional hollow fiber membrane filter had a problem in that the insertion tube formed in the connector, that is, the insertion tube into which the hollow fiber bundle is inserted, was formed smaller than the cover plate attached to the header tube, so the number of hollow fibers that could be installed per unit area was very limited.

In addition, the conventional hollow fiber membrane filter is not easy to assemble and install because a plurality of connectors must be individually glued to the header tube, and there is a problem that the adhesive part easily falls off due to external force. In particular, there was a very inconvenient problem because the cylindrical plug provided at one end of the header tube had to be fixed with a U-bolt or the like.

Registered Patent Publication No. 10-1333636 (2013.11.27.)

The present invention is intended to solve the conventional problems described above. By improving the structure of the hollow fiber membrane filter module, the number of hollow fibers that can be installed per unit area can be increased, and through this, the hollow fiber membrane can maximize the filtration amount of wastewater. The purpose is to provide a filtration device.

In addition, the present invention has an additional purpose of providing a hollow fiber membrane filtration device that is easy and convenient to assemble and install the hollow fiber membrane filter module and has excellent durability, thereby improving the service life.

The present invention for achieving the above object is a hollow fiber membrane comprising a hollow fiber membrane filter module that filters wastewater using a bundle of hollow fibers, and a frame formed with a passage for discharging the filtrate water filtered through the hollow fiber membrane filter module to the outside. As a filtration device,

The hollow fiber membrane filter module is composed of a water collection pipe for discharging filtered water, a filter member for filtering wastewater, and a mounting socket for connecting the water collection pipe and the filter member.

The water collection pipe includes a header tube formed with a transfer path for discharging filtered water, a mounting slot formed on one side of the header tube, connected to the transfer path, and extending in the longitudinal direction of the header tube, and one end of the header tube. It consists of a first plug formed in and inserted into and fixed to the frame, and a second plug formed at the other end of the header tube and seated and fixed to the frame.

Additionally, the filter member is provided between the pair of water collection pipes and is made of a bundle of hollow fibers.

Additionally, the mounting socket extends in one direction so that it can be installed in the mounting slot, and an end of the filter member is inserted, and the end of the filter member inserted into the mounting socket is fixed by a potting agent.

Here, the mounting socket is formed in the shape of a pipe with one end sealed so that the end of the filter member can be filled by filling the filler, and when the potting agent hardens, the sealed end of the mounting socket is cut to fit into the mounting slot. By installing it, the transfer path and the filter member are connected.

The present invention configured as described above can increase the number of hollow fibers that can be installed per unit area by improving the structure of the collection pipe and mounting socket of the hollow fiber membrane filter module, thereby maximizing the filtration amount of wastewater.

In addition, the present invention improves the assembly structure of the water collection pipe and mounting socket of the hollow fiber membrane filter module, so assembly and installation are easy and convenient, and there is no risk of damage by external force, so durability is excellent and service life can be improved.

1 is a perspective view of a hollow fiber membrane filtration device according to an embodiment of the present invention.
Figure 2 is a perspective view of a hollow fiber membrane filter module among the hollow fiber membrane filtration devices according to an embodiment of the present invention.
Figure 3 is a perspective view of a hollow fiber membrane filter module according to an embodiment of the present invention.
4 and 5 are cross-sectional views of a hollow fiber membrane filter module according to an embodiment of the present invention.
Figure 6 is a diagram showing the manufacturing and installation process of a hollow fiber membrane filter module according to an embodiment of the present invention.

The above-mentioned objects, features, and advantages will be described in detail later with reference to the attached drawings, so that those skilled in the art will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of known technologies related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. In the drawings, identical reference numerals are used to indicate identical or similar components.

Although first, second, etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another component, and unless specifically stated to the contrary, the first component may also be the second component.

Throughout the specification, unless otherwise stated, each element may be singular or plural.

Hereinafter, the “top (or bottom)” of a component or the arrangement of any component on the “top (or bottom)” of a component means that any component is placed in contact with the top (or bottom) of the component. Additionally, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

Additionally, when a component is described as being “connected,” “coupled,” or “connected” to another component, the components may be directly connected or connected to each other, but there is no “connection” between each component. It should be understood that each component may be “interposed” or “connected,” “combined,” or “connected” through other components.

As used herein, singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, terms such as “consists of” or “comprises” should not be construed as necessarily including all of the various components or steps described in the specification, and some of the components or steps may include It may not be included, or it should be interpreted as including additional components or steps.

Throughout the specification, when referred to as “A and/or B”, this means A, B or A and B, unless specifically stated to the contrary, and when referred to as “C to D”, this means unless specifically stated to the contrary. Unless there is one, it means that it is C or higher and D or lower.

As shown in Figure 1, the hollow fiber membrane filtration device 10 according to an embodiment of the present invention includes a hollow fiber membrane filter module 100 for filtering wastewater and a frame on which the hollow fiber membrane filter module 100 is installed. 200).

Referring to Figures 2 to 5, the hollow fiber membrane filter module 100 is a filter module that uses hollow fiber (112) as a separation membrane, and includes a filter member 110 for filtering wastewater and a filter member 110. It consists of a water collection pipe 130 that discharges filtered water (filtered water), and a mounting socket 150 that connects the filter member 110 and the water collection pipe 130.

The filter member 110 is a filter in which a plurality of hollow fibers 112 are bundled together. The diameter of the hollow fiber 112 constituting the filter member 110 is about 3 to 5 mm, and fine pores (not shown) are formed on the surface of the hollow fiber 112 for separation of contaminants.

The hollow fiber membrane filtration device 1 according to this embodiment filters wastewater using a filter member 110 made of a plurality of hollow fibers 112, so the hollow fibers 112 constituting the filter member 110 are installed. If the number is increased, the filtration speed and filtration amount of wastewater can be improved.

To this end, the water collection pipe 130 and the mounting socket 150 of the hollow fiber membrane filter module 100 according to this embodiment have a structure different from that of the prior art.

First, the water collection pipe 130 is a pipe that discharges water (filtered water) filtered through the filter member 110, and includes a header tube 132, a mounting slot 134 formed on one side of the header tube 132, and It consists of first and second plugs 136 and 138 formed at both ends of the header tube, respectively.

The header tube 132 is a pipe extending in one direction, and a transfer path 133 for discharging filtered water is formed inside it. At this time, one side of the header tube 132 is open, and a mounting slot 134 is formed on the open side.

The mounting slot 134 is a slot for coupling the filter member 110 to the mounted and fixed mounting socket 150, and has a long hole shape extending in the longitudinal direction of the header tube 132, and is connected to the transfer path 133. Open to connect with.

The first plug 136 is formed at one end of the header tube 132 and is inserted into and fixed to the third and fourth horizontal members 233 and 234 of the frame 200. This first plug 136 has a pipe shape with a circular cross-section that can be inserted into the connection port 237 of the third and fourth horizontal members 233 and 234, and is located around the first plug 136 inserted into the connection port 237. Three annular grooves 135 are formed. And a sealing ring 137 that seals between the first plug 136 and the connection port 237 is inserted into the annular groove 135.

The second plug 138 is formed at the other end of the header tube 132 and is seated and fixed to the fifth and sixth horizontal members 235 and 236 of the frame 200. This second plug has a pipe shape with a square cross-section that can be mounted on the frame 200, and its interior is sealed to prevent leakage of filtered water. And a fastening hole 139 for bolt connection with the fifth and sixth horizontal members 235 and 236 is formed in the second plug 138.

Meanwhile, flanges 142 and 144 are formed between the header tube 132 and the first plug 136, and between the header tube 132 and the second plug 138.

The first flange 142 formed between the header tube 132 and the first plug 136 is formed with a larger diameter than the first plug 136, and the connection port of the frame 200 when installing the water collection pipe 130 ( 237) to restrict insertion of the water collection pipe 130.

In addition, the second flange 144 formed between the header tube 132 and the second plug 138 is formed to have a vertical diameter larger than the second plug 138, and is attached to the frame 200 when the water collection pipe 130 is installed. It prevents the flow of the water collection pipe 130 by contacting the fifth and sixth horizontal members 235 and 236.

The mounting socket 150 has an internal space 152 so that the end of the filter member 110 can be inserted, and is manufactured in the shape of a long pipe extending in one direction so that it can be coupled to the mounting slot 134. . At this time, the mounting socket 150 has a pipe shape with one end sealed so that the inserted filter member 110 can be aligned and then filled with the potting agent 170 and fixed. In addition, one or more partition walls 154 are formed in the internal space 152 to align the inserted filter member 110.

The manufacturing and installation process of the hollow fiber membrane filter module 100 configured as described above is as follows.

As shown in Figure 6, prepare a mounting socket 150. At this time, the mounting socket 150 is a long pipe with one end sealed so that the filter member 110 can be inserted and aligned, and the filter member 110 can be fixed by filling the potting agent 170.

After inserting the end of the filter member 110 in which a plurality of hollow fibers 112 are bundled into the prepared mounting socket 150, the potting agent 170 is filled into the internal space 152 of the mounting socket 150. Harden.

When the potting agent 170 is hardened and the filter member 110 is fixed, the sealed end of the mounting socket 150 is cut and inserted into the mounting slot 134 of the water collection pipe 130, thereby transporting the filter member 110. It is connected to the furnace (133).

Meanwhile, looking at the installation process of the hollow fiber membrane filter module 100, the first plug 136 is inserted into the connection port 237 of the third horizontal member 233 or the fourth horizontal member 234, and the second plug ( 138) is seated on the fifth horizontal member 235 or sixth horizontal member 236 and then fixed by fastening with a bolt (B).

The frame 200 of this embodiment consists of a first frame 210, a second frame 220, and a plurality of horizontal members 230 connecting the first frame 210 and the second frame 220, It is a hollow rectangular parallelepiped extending up and down so that a plurality of hollow fiber membrane filter modules 100 can be installed.

The first frame 210 has a rectangular ring shape extending up and down, and a first passage 212 for transporting filtered water is formed inside it. Additionally, an outlet 214 is formed at the top of the first frame 210 to discharge the filtered water transported through the first passage 210 to the outside.

That is, the filtrated water filtered through the hollow fiber membrane filter module 100 is transferred to the first frame 210 through the third and fourth horizontal members 233, which will be described later, and is connected to the first passage 212 and the outlet 214. It is discharged to the outside through.

The second frame 220 has the same rectangular ring shape as the first frame 210, and a second passage 222 for transporting compressed air is formed inside it. Additionally, an inlet 224 for supplying compressed air is formed at the top of the second frame 220.

That is, the compressed air supplied through the inlet 224 is transported along the second passage 222 and then injected toward the hollow fiber membrane filter module 100 through the auxiliary member 240, which will be described later. At this time, the compressed air injected toward the hollow fiber membrane filter module 100 through the auxiliary member 240 is used to remove contaminants attached to the hollow fiber membrane filter module 100.

Here, the first passage 212 formed in the first frame 210 and the second passage 222 formed in the second frame 220 are partitioned to be separated from each other to prevent the filtered water discharged to the outside from mixing with the compressed air. do.

The horizontal members 230 consist of a total of six pieces provided between the first frame 210 and the second frame 220.

The first horizontal member 231 and the second horizontal member 232 are installed at the bottom of the frame 200 and serve to connect and support the first frame 210 and the second frame 220.

In addition, the third horizontal member 233 and the fourth horizontal member 234 are installed on one side of the frame 200 to connect and support the first frame 210 and the second frame 220, and at the same time, the hollow fiber membrane filter It serves to support and fix the module 100.

For this purpose, a connection port 237 into which the first plug 136 of the hollow fiber membrane filter module 100 is inserted is provided in the third horizontal member 233 and the fourth horizontal member 234. In particular, a passage (not shown) for movement of filtered water is formed inside the third horizontal member 233 and the fourth horizontal member 234.

The fifth horizontal member 235 and the sixth horizontal member 236 are installed on the other side of the frame 200 to connect and support the first frame 210 and the second frame 220, and at the same time, the hollow fiber membrane filter module ( It plays a role in supporting and fixing 100).

To this end, the fifth horizontal member 235 and the sixth horizontal member 236 are lower than the third and fourth horizontal members 233 and 234 so that the second plug 138 of the hollow fiber membrane filter module 100 can be seated. It is installed in position, and a fastening hole 239 is formed so that the bolt (B) can be fastened.

Meanwhile, an auxiliary member 240 is provided at the bottom of the frame 200. The auxiliary member 240 is connected to the second frame 220 and sprays compressed air transported through the second passage 222 to remove contaminants attached to the hollow fiber membrane filter module 100. At this time, a nozzle 242 for spraying compressed air toward the hollow fiber membrane filter module 100 is formed on the auxiliary member 240.

The present invention has been described above through preferred embodiments, but the above-described embodiments are merely illustrative examples of the technical idea of the present invention, and various changes are possible without departing from the technical idea of the present invention. Anyone with ordinary knowledge will be able to understand. Therefore, the scope of protection of the present invention should be interpreted based on the matters stated in the patent claims, not the specific embodiments, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of the present invention.

10: Hollow fiber membrane filtration device 100: Hollow fiber membrane filter module
110: filter member 130: water collection pipe
150: Mounting socket 200: Frame

Claims (8)

In the hollow fiber membrane filtration device comprising a hollow fiber membrane filter module that filters wastewater using a bundle of hollow fibers, and a frame formed with a passage for discharging the filtered water filtered through the hollow fiber membrane filter module to the outside,
The hollow fiber membrane filter module,
A header tube formed with a transfer path for discharging filtered water, a mounting slot formed on one side of the header tube, connected to the transfer path and extending in the longitudinal direction of the header tube, and formed at one end of the header tube and the frame. a water collection pipe consisting of a first plug inserted into and fixed to the header tube, and a second plug formed at the other end of the header tube and seated and fixed to the frame;
A filter member provided between the pair of water collection pipes and made of a bundle of hollow fibers to filter wastewater; and
A mounting socket extending in one direction so as to be installed in the mounting slot and into which an end of the filter member is inserted and secured,
The mounting socket is formed in the shape of a pipe with one end sealed so that the end of the filter member can be inserted and fixed by filling it with a potting agent,
A hollow fiber membrane filtration device characterized in that, when the potting agent hardens, the sealed end of the mounting socket is cut and installed in the mounting slot so that the transfer path and the filter member are connected.
In claim 1,
A first flange is formed between the header tube and the first plug to restrict insertion of the water collection pipe by contacting the frame,
A hollow fiber membrane filtration device, characterized in that a second flange is formed between the header tube and the second plug to prevent the flow of the water collection pipe by contacting the frame.
In claim 2,
The first plug has a pipe shape with a circular cross-section that can be inserted into the frame, and at least one annular groove is formed around the first plug, and the annular groove has a sealing ring that seals between the frame and the water collection pipe. A hollow fiber membrane filtration device, characterized in that it is provided.
In claim 3,
The second plug is shaped like a pipe with a square cross-section that can be mounted on the frame, but its interior is sealed, and the second plug mounted on the frame is fixed with a bolt.
The method according to any one of claims 1 to 4,
A hollow fiber membrane filtration device, characterized in that the mounting socket is formed with at least one partition dividing an internal space into which the end of the filter member is inserted.
In claim 5,
The frame is,
A first frame in the shape of a square ring formed with a first passage for discharging the filtered water filtered through the hollow fiber membrane filter module to the outside;
a square ring-shaped second frame formed with a second passage for transporting compressed air to remove contaminants attached to the hollow fiber membrane filter module; and
It includes a plurality of horizontal members provided between the first frame and the second frame,
A hollow fiber membrane filtration device, characterized in that the first passage and the second passage are partitioned from each other.
In claim 6,
A hollow fiber membrane filtration device, characterized in that at least two of the horizontal members are provided with connection ports for installation of the hollow fiber membrane filter module.
In claim 7,
A hollow fiber membrane filtration device, characterized in that an auxiliary member for spraying compressed air toward the hollow fiber membrane filter module is connected to the second frame.

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