KR100822444B1 - Separation membrane module having an improved adhesive property between separation membrane and separation membrane module - Google Patents

Abstract

An improved adhesion structure between a membrane unit and membrane module frames is provided to improve adhesion properties between the frames and the membranes and improve durability of a membrane module itself by improving adhesion structure between membranes and membrane module frames. As a membrane module comprising: a membrane unit including a supporting body(110) disposed in the center, a pair of spacers(120) laminated on both side faces of the supporting body, and membranes(130) for water treatment which are laminated on outer faces of the spacers, and by which actual separation of water is performed; and frames(210,220,230) adhered to the edge of the membrane unit, the membrane module is characterized in that grooves(270) are formed in outer sides of the membrane module frames to receive corner ends of the membranes, and the membranes are solidly adhered to the membrane module frames by an adhesive in a state that the ends of the membranes are inserted in the grooves of the membrane module frame side.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separation membrane module having an improved adhesion structure between a separation membrane and a separation membrane module frame,

1 is a view showing a process of manufacturing a conventional separation membrane unit.

FIG. 2 is a perspective view of a conventional separation membrane module, showing a bonding site between the separation membrane unit and the separation membrane module frame shown in FIG. 1. FIG.

FIG. 3 is a partial cross-sectional view of the separation membrane module shown in FIG. 2, showing a typical bonding structure of the separation membrane unit and the separation membrane module frame.

FIG. 4 is a partial cross-sectional view of a separation membrane module according to a preferred embodiment of the present invention, showing a specific bonding structure of a separation membrane module and a separation membrane module frame.

FIG. 5 is a partial cross-sectional view of a separation membrane module according to another preferred embodiment of the present invention, showing another specific bonding structure of the separation membrane module and the separation membrane module frame.

Description of the Related Art

100: membrane unit

110: Support

120: Spacer

130: separator

210, 220. 230: Membrane module frame

270: (Membrane module frame side) Home

The present invention relates to a separation membrane module for MBR (Membrane Bio-Reactor), and more particularly, to a separation membrane module having improved adhesion between a separation membrane module and a separation membrane module frame will be.

Membrane is a phase separating only specific components from gases, liquids, solids, or a mixture of them. Membrane separation is a separation process that separates a substance in a molecular state using the physicochemical properties of the membrane. Method.

In the water treatment field, membranes are classified into porous membranes, microporous membranes and homogeneous membranes depending on the structure. Microporous membranes are classified into microfiltration membranes, ultrafiltration membranes, reverse osmosis membranes, gas separation membranes, and pervaporation membranes. Generally, a membrane is difficult to use alone, and a membrane is used as a device for use in a separation process. A facility in which a membrane is inserted into a device is called a so-called module. Depending on the membrane type, flat plate modules, tubular modules, and hollow fiber membrane modules are used commercially. Two types of hollow fiber membrane modules are used: a pressurized type and a suction type (immersed type), and a tubular type is used as a pressurized type. The pressurized type of hollow fiber membranes and tubular membranes must maintain a constant linear velocity within the membrane in order to reduce contamination of the membranes, resulting in high power ratios. Inhalation type of hollow fiber membranes may cause air bubbles to hit the surface of the membranes in water to reduce contamination. In some cases, membranes may damage fibrous contaminants and entangled membranes themselves. The membrane type refers to a membrane formed on a flat surface or a sheet, and it has an advantage that it is easy to remove contaminants because the contaminants do not stick to each other easily, and there is little possibility that the membrane is damaged during operation compared to the hollow fiber membrane. However, unlike the hollow fiber membrane, there is a disadvantage that it is impossible to wash the membrane through backwashing.

The membrane module is selected based on conditions such as film filling rate, allowable raw water contaminant concentration, physical washing resistance, and removal efficiency. The structure and strength of the membrane itself and the design and structure of the membrane module also greatly affect the life of the membrane module and the throughput of the membrane module, so consideration should be given to the design and structure of the membrane module.

FIG. 1 is a perspective view of a conventional separation membrane module, and FIG. 2 is a perspective view of a conventional separation membrane module. Referring to FIG. 1, a schematic bonding structure between the separation membrane unit and the separation membrane module frame is shown And Fig. 3 shows a typical detailed bonding structure of the separation membrane unit and the separation membrane module frame. Referring to these drawings, a conventional conventional separator module 260 has a support 110 disposed at the center thereof. A pair of spacer nonwoven fabrics 120 are stacked on both sides of the support 110, The separator unit unit 100 includes a separator 130 on which an actual separation occurs. Here, the spacer nonwoven fabric 120 is laminated to prevent adhesion between the separation membrane 130 and the support body 110 due to suction pressure.

At both sides of the separation membrane unit 100, both side frames of the separation membrane module shown at 210 are fitted, and the upper side frame of the separation membrane module, in which the catches 222 shown at 220 are formed, is fitted And the lower frame 230 is fitted with the lower frame of the separation membrane module. A pair of auxiliary plates 240 in the form of a triangular plate are bonded to the edge portions of the separation membrane module frames. In general, the above-described separation membrane unit 100 and the various components mentioned in this paragraph are collectively referred to as a separation membrane module 260.

Typically, in such a separator module 260, the separation membrane 130 and the separator module frames 210, 220, 230 are adhered to the separator module frames 210, 210, 220, 230, as shown in Figures 2 and 3, 220 and 230 and the separating film 130 at the portion 250 where the separating film module frames 210, 220 and 230 are in contact with the inner surface. At this time, the adhesive portion between the separator module frames 210, 220, and 230 and the separator 130 is exposed to the outside and is in direct contact with water, so that the adhesive surface can be easily separated. This causes the separator module 260 itself to have a low durability.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the bonding structure between the separation membrane and the separation membrane module frame to improve the adhesion between the separation membrane and the separation membrane module, And to provide an improved adhesion structure between the membrane module and the membrane module frame to improve durability.

In order to achieve the above object,

A support 110 is disposed in the center of the support 110 and a pair of spacers 120 are stacked on both sides of the support 110. A separator 130 for water treatment, A plurality of grooves are formed on the outer sides of the separation membrane module frames 210, 220 and 230 to accommodate the edge portions of the separation membrane modules 130, And an end portion of the separation membrane 130 is received in the frame side groove and is tightly adhered and bonded by an adhesive.

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As described above, the separation membrane module according to the present invention is characterized in that not only the end portion of the separation membrane is held in close contact with the groove formed separately in the separation membrane module frame, but also the gap between the end of the separation membrane and the groove formed on the separation membrane module frame side The adhesive force between the separation membrane module frame and the separation membrane unit is improved and the durability of the separation membrane module itself is improved.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in more detail with reference to the accompanying drawings, in which: FIG.

4, a specific adhesive structure of the separation membrane module 130 and the separation membrane module frames 210, 220 and 230 is shown in FIG. 5, and FIG. 5 is a sectional view of another preferred embodiment of the present invention , Another specific bonding structure of the separation membrane unit and the separation membrane module frame is shown.

4, the separation membrane module according to the present invention includes a separation membrane unit 100 and separation membrane module frames 210, 220 and 230 which are disposed around the separation membrane unit 100 and bonded to each other.

The separation membrane unit 100 includes a support 110 disposed at the center of the support 110, a pair of spacers 120 disposed on both sides of the support 110, preferably a spacer nonwoven fabric 120, And a water separating membrane 130 disposed on the outer surface of the water treatment separator 130 to perform actual separation.

In the present invention, a groove 270 capable of receiving the edge of the separation membrane 130 is formed on the separation membrane module frame side where the edge of the separation membrane 130 is in contact with the separation membrane module frames 210, 220 and 230 . The edge of the separation membrane 130 is closely accommodated in the separation membrane module frame side groove 270.

Moreover, the adhesive agent is applied to the separation membrane module frame side groove 270 before the edge of the separation membrane 130 is received. Adhesion of the adhesive to the membrane module side groove serves to make the edge of the membrane 130 adhere more densely to the membrane module side groove 270.

The shape of the grooves 270 formed in the membrane module frames 210, 220, and 230 may be shaped at an angle as shown in FIG.

5, the shape of the groove 270 formed in the separator module frames 210, 220, and 230 may be such that a jaw is formed outside the separator module frames 210, 220, and 230, 130, respectively. In this case, the edge of the separating film 130 may be more easily adhered to the separator module frame side groove 270, so that the bonding process will be easier.

The separation membrane module manufactured in this manner ensures that the separation membrane module bonded to the separation membrane module frames 210, 220 and 230 is not exposed to the outside, so that the separation membrane module can be stably used for a long period of time.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It can be understood that it is possible.

As described above, the separation membrane module according to the present invention is characterized in that not only the end portion of the separation membrane is held in close contact with the groove formed separately in the separation membrane module frame, but also the adhesion between the end of the separation membrane and the groove formed on the separation membrane module frame side, The adhesion between the separation membrane module frame and the separation membrane unit is improved and the durability of the separation membrane module itself is improved.

Claims (3)

A support 110 is disposed in the center of the support 110 and a pair of spacers 120 are stacked on both sides of the support 110. A separator 130 for water treatment, A frame (210, 220, 230) is bonded to a rim of the separation membrane unit (100) The separating membrane module frame 210 has grooves for receiving the edge portions of the separating membrane 130 at the outer sides of the separating membrane module frames 210. The end portions of the separating membrane 130 are received in the separating membrane module frame- And the adhesive layer is adhered to the adhesive layer. delete delete

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