JPS614511A - Manufacturing jig of hollow yarn filtration module - Google Patents

Abstract

PURPOSE:To obtain a jig suitable for manufacturing a comparatively large- sized hollow yarn filtration module in which the hollow yarn filtration membranes are uniformly distributed between the fixing members and the reliability of bonding between the members is large. CONSTITUTION:The resin injecting needles 3 are fixed to the plural apertures 5 of the first pot 1. A resin distributing chamber 8 is formed by sticking tightly the second pot 2 having a resin injecting port 6 and a recess 7 to the first pot 1. The hollow yarn filtration membranes 11 which are converged by forming preliminarily a tentative fixing part 12 of the thin membranes to the end part are pressed to the installing face of the resin injecting needles 3 of the first pot 1 and liquid resin is poured from the resin injecting port 6 of the second pot 2 and discharged to the upper part of the tentative fixing part 12 from the resin discharging ports 9 of the needles 3 via the chamber 8. Then, after the resin injecting port 6 is closed and the resin is solidified in the state wherein the jig has been made to one body with the module, the jig is removed the fixing member of unnecessary parts is cutted and removed and the end parts of the hollow yarn filtration membranes 11 are opened to manufacture the module.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a jig for manufacturing a hollow fiber filtration module, which is suitable for manufacturing a relatively large-sized hollow fiber filtration module.

[Prior art] Hollow fiber filtration membranes made of homogeneous membranes or porous membranes can have a larger membrane area than flat membranes, and are easier to handle than other filtration means. It has the feature of having excellent filtration performance. For this reason, in recent years,
The use of modularized hollow fiber filtration membranes in fields where semen filtration is required or as artificial organs is being investigated.

Conventionally, the manufacturing of such hollow fiber filtration modules involves injecting the hollow fiber filtration membrane into the supporting member of the module along with a liquid resin such as polyurethane, epoxy resin, silicone resin, etc. as a fixing member, and then centrifuging the liquid resin. It has generally been manufactured by solidifying within the support member of the module.

However, when manufacturing a large-sized hollow fiber filtration module using this method, the number of hollow fiber filtration membranes in the module increases and the area of the fixed part becomes larger, making it necessary to pump liquid resin from one place. When injected, the proportion of the liquid resin flowing in the direction perpendicular to the fiber axis of the hollow fiber filtration membrane at a position away from the nozzle increases, increasing the flow resistance of the liquid resin. Along with this, the hollow fiber filtration membranes are displaced, and the degree of close contact between the hollow fiber filtration membranes increases. As a result, it is difficult to inject the liquid resin that serves as the fixing member into the hollow fiber filtration membrane in a uniform and evenly distributed manner, and conversely, it is difficult to equalize the distribution of the hollow fiber filtration membrane within the fixation member. Therefore, if the hollow fiber filtration membranes are fixed in contact with each other without intervening a fixing member, minute gaps will be formed, which will reduce the reliability of the fixing member's function as a partition member. Sign. Furthermore, when injecting the liquid resin that forms the fixing member into the supporting member, there is no need for a hollow fiber filtration membrane.
Until now, not much consideration has been given to manufacturing large-sized hollow fiber filtration modules and developing applications, as there is the problem of liquid resin adhering to parts of the filtration membrane, reducing the effective filtration area of the filtration membrane. This is the current situation.

[Objective of the Invention] The object of the present invention is to provide a hollow fiber filtration module suitable for producing a relatively large hollow fiber filtration module in which hollow fiber filtration membranes are uniformly distributed between fixed members, and the adhesion between these members is highly reliable. The object of the present invention is to provide a jig for manufacturing modules.

[Configuration of the Invention In other words, the jig for manufacturing a hollow fiber filtration module of the present invention is a hollow fiber filtration module having a support member and a large number of hollow fiber filtration membranes fixed to the interior of the support member by a fixing member. A jig for manufacturing a jig, which has a plurality of resin injection needles and a plurality of openings to which the resin injection needles can be fixed, and a first point that can be attached to the annular member;
a second pot having a resin inlet and a recess forming a resin distribution chamber when brought into close contact with the first pot;
It is equipped with:

C Preferred mode for carrying out the invention] A hollow fiber filtration module manufactured by the jig of the present invention has a support member, a fixing member, and a hollow fiber filtration membrane, and various other members may be attached as desired. It may be something that has been done.

The support member functions to support the entire hollow fiber filtration module, and typically has a cylindrical shape, but may also have a rectangular or other cross-sectional shape.

FIG. 1 is a cross-sectional view showing one embodiment of a jig for manufacturing a hollow fiber filtration module of the present invention, FIG. 2 is a partially enlarged view of the jig, and FIG. FIG. 3 is a schematic cross-sectional view showing a method of manufacturing a thread filtration module.

Hereinafter, the jig for manufacturing a hollow fiber filtration module of the present invention will be described in detail with reference to these drawings, including the manufacturing process of a hollow fiber filtration module.

The jig of the present invention basically includes a first pound 1, a second pound 2, and a resin injection needle 3.

The first pot 1 is provided with a flat portion 4 having approximately the same internal cross-sectional area as the support member of the hollow fiber filtration module to be manufactured,
A plurality of openings 5 are arranged in the plurality of flat parts 4, and a resin injection needle 3 is fixed to each of these openings 5. Opening 5
Although the number of installed units varies depending on the size of the hollow fiber filtration module to be manufactured, it is preferable to arrange them as evenly as possible over the entire plane part 4. It is preferable that the first pot 1 and the resin injection needle 3 are configured to be detachable. 1 shows a type in which the resin injection needle 3 is inserted into the opening 5 from the second pot 2 side, but on the contrary, the resin injection needle 3 is inserted into the opening 5 from the side of the opening 5 opposite to the second pot 2. It may be of a type in which a protrusion is provided on the protrusion and the resin injection needle 3 is fitted into the protrusion.

The second pot 2 is provided with a resin injection port 6 and a recess 7, and the fourth part 7 forms a resin distribution chamber 8 between these members when the first pot 2 and the second pot 2 are brought into close contact with each other. It is provided as a shape to form. The resin injection needle 3 has its resin suction port fixed in the direction of the resin distribution chamber 8, and the resin discharge port 9 of the resin injection needle 3 is oriented at its tip in the direction along the central axis like a normal injection needle. However, it is preferable that one or more, more preferably a plurality of them be provided in a diagonal direction with respect to the central axis as shown in FIG. The resin injection needle 3 may be made of metal or resin such as Teflon.

When manufacturing the hollow fiber filtration module, the first pot l
, the jig of the present invention having the second pot 2 and the resin injection needle 3, the support member 10 and the hollow fiber filtration membrane 11 constituting the hollow fiber filtration module are arranged as shown in FIG. It is preferable that the hollow fiber filtration membrane 11 has an extremely thin flat membrane-shaped temporary fixing part 12 formed in advance at its end using the same resin as used as the fixing member. At this time, it is preferable that all the open ends of the hollow fiber filter [11] in the temporary fixing part 12 be closed with this resin or the like. Next, the temporarily fixed part 11 of the bundled hollow fiber filtration membrane 11 is pressed down by 0 degree on the installation surface (plane part 4) of the resin injection needle 3 of the first pot l, and the resin discharge 09 of the resin injection needle 3 is temporarily held. The support member 10 is placed so as to protrude above the fixing part 11, and at the same time, the support member 10 is brought into close contact with the first pot 1. At this time, in order to ensure close contact between the support member IO and the first pot 1 and the first pot 1 and the second pot 2, an O ring 13 is inserted between these members.
may be arranged, and the outer periphery of these members may be fixed by a fixing/hend 14.

A liquid resin, which becomes a fixing member of the module when solidified, is injected into the jig and the constituent members of the hollow fiber filtration module arranged in this way from the resin injection port 6 of the second pot 2. The liquid resin is discharged from the resin discharge port 9 of the resin injection needle 3 to the upper part of the temporarily fixed part 12 of the hollow fiber filtration membrane 11 via the resin distribution chamber 8 . In the jig of the present invention, the resin is evenly released from the plurality of resin injection needles 3 disposed near the converging end (temporary fixing part 12) of the hollow fiber filtration membrane 11, so that the module to be manufactured is According to the size of
By appropriately adjusting the number and arrangement of the resin injection needles 3, it is possible to relatively uniformly inject the liquid resin to a desired position within the support member 10. Is the open end of the hollow fiber filtration membrane 11 blocked?'? This is advantageous because the liquid resin does not enter the hollow portion of the hollow fiber filtration membrane 11 at this time.

Next, the resin injection port 6 is closed by an appropriate means, and then, with the jig integrated with the module, the liquid resin is solidified by centrifugation in the same manner as in the manufacturing method of conventional hollow fiber filtration modules. Next, remove the jig from the module, remove unnecessary parts of the fixing member, and
A hollow fiber filtration module is manufactured by opening the end of the hollow fiber filtration membrane 11. .

[Effects of the present invention] By using the jig of the present invention, even when manufacturing a relatively large hollow fiber filtration module, the liquid adhesive can be applied to the hollow fiber filtration membrane in the support member along the fiber axis. The liquid resin can flow in a direction parallel to the flow, reducing the flow resistance during inflow, eliminating the position of the hollow fiber filtration membranes, and ensuring that the liquid resin is evenly distributed between adjacent hollow fiber filtration membranes. It is possible to manufacture a hollow fiber filtration module in which the fixing member functions as a partition member with high reliability and exhibits an adhesive state. As a result, it has become possible to manufacture large-sized hollow fiber filtration modules, and it has become possible to expand the field of application of hollow fiber filtration modules.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing one embodiment of a jig for manufacturing a hollow fiber filtration module of the present invention, FIG. 2 is a partially enlarged view of the jig, and FIG. FIG. 3 is a schematic cross-sectional view showing a method of manufacturing a filtration module.

Claims (1)

[Scope of Claims] 1) A jig for manufacturing a hollow fiber filtration module having a support member and a plurality of hollow fiber filtration membranes fixed to the inside of the support member by a fixing member, the jig comprising: a resin injection needle; a first pot having a plurality of openings to which the resin injection needle can be fixed; and a first pot that can be brought into close contact with the annular member; and a resin distribution chamber formed when the first pot is brought into close contact with the first pot. A jig for manufacturing a hollow fiber filtration module, comprising a recess and a second pot having a resin injection port. 2) The jig according to claim 1, wherein a plurality of resin discharge openings of the resin injection needle are installed in a direction oblique to the central axis of the injection needle.