JPS621409A - Filter module made of hollow fiber - Google Patents

Abstract

PURPOSE:To provide a single module having a filter area increased by integer- fold compared with the existing filter element, which saves lots of time and labor for installation, replacement and maintenance by means of connecting and adjoining integrally plural unit filter elements. CONSTITUTION:The ends of hollow fiber 2 are connected with the packed bed 3 made of epoxy resin-originated adhesive inside the cylindrical frame 1 made of unit filter element formed with Noryl resin. For instance, plural fan-shaped 1b's having almost equivalent area of the frame 1a are adhered around the cylindrical frame 1a, encircling 1a to form an integral round shape altogether.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a filtration module using hollow fibers that can be used for external pressure or internal pressure, in which permeable hollow fibers are bundled together.

(Prior art) One hollow fiber made of polysulfone, polyethersulfone, polyolefin, polypropylene, polyethylene, etc. has an outer diameter of about 1.6 mm and an inner diameter of about 1 mm,
When the length is 1rs, the p overarea is o. oos y and very small. Therefore, when configuring a large filtration device, a large number of them are bundled, each end of which is kept spaced apart from each other in a cylindrical frame made of noryl resin, etc., and the epoxy resin is filled into the cylindrical frame. By solidifying the contact 7f agent in the system, a P-passing element is integrally connected to the above-mentioned bullet frame, and a predetermined number of P-A elements are used depending on the scale of the device.

(Problems to be solved by the invention) Conventional filtration elements have a cylindrical frame with an inner diameter of 80 mm (' The limit is to combine approximately aOO hollow fibers to make the P-A area 42, and beyond that, 9 hollow fibers can be combined to have the same degree of richness in a cylindrical frame with a larger inner diameter. When combined, the 3 degrees of the row contacting part becomes weaker, and due to long-term operation, it becomes fatigued and cracks appear on the row contact surface.

Therefore, in the case of a large-scale device of about 750 r&/h, 500 to 600 filtration elements are used, which requires a large number of parts and requires time for maintenance.

(Means for Solving the Problems) Therefore, the present invention is characterized in that a plurality of unit filtration elements are brought into contact with each other and are integrally combined.

(Function) The area of each unit filtration element connected adjacent to each other is approximately equal to the shape of a circle with an inner diameter of about 80 mm, and each unit has a diameter of about 800 mm and a length of 1 mm. If the ends of the PL hollow fibers are fixed, a single filtration module having a filtration surface shape nine times that of a conventional filtration element can be obtained.

(Example) In each of the illustrated examples, l is a cylindrical frame of each potential filtration element molded from Noryl resin, and c... is a cylindrical frame of each potential filtration element molded from Noryl resin, and the ends are joined within the frame with a filling layer J of epoxy resin adhesive. It is a hollow fiber.

The first example in Fig. 1 is a cylindrical frame/Ls with a diameter of about 80 m to which about 800 hollow fibers are fixed, and a circle with a diameter of about 80 wx and a circle of the same size with an area equal to y. Six fan-shaped cylindrical frames /b are bonded and surrounded by a layering agent to form a circular shape as a whole, and each fan-shaped cylindrical frame l& has a filling no. 3 and the ends of hollow fibers are fixed at approximately aOO. is fixed. in this case,
The radius of curvature of the layered cylindrical frame/b is approximately 40 m on the inner circumference and approximately 110 m on the outer circumference. In this example, if the length of the hollow fiber is one corner, the filtration area is 28, which is 7 times that of the conventional filtration element.
n? In the embodiment shown in Fig. 4, six circles each having a diameter of about 8C1a+ and a surface shape of y are arranged around the layered cylindrical frame ih of the embodiment shown in Fig. 1. A fan-shaped cylindrical frame/C is bound and surrounded by a layering agent to form a circular shape as a whole, and within each cylindrical frame/c there are also 4 portions of hollow fibers of about 800 wood in the filling layer J. is fixed.

In this case, the radius of curvature of each cylindrical frame/C is approximately 110 mm on the inner circumference.
mg, and the outer circumference is 145 m. If the length of the hollow fiber is 1 wind, the filtration area of the filtration module of this embodiment is about 52 iK, which is 13 times that of the conventional FM element.

The example in FIG. 5 is the circle 'Y2i! Six fan-shaped cylindrical frames/d divided into 66 segments in a radial pattern are joined together again into a circle with a layering agent, and the area of each cylinder and frame/d is a circle with a diameter of approximately 80 m. is equal to y, and there are about 800 filling layers 3 inside each
The end of the wooden hollow fiber is fixed. The radius of curvature of the outer periphery of each cylindrical frame is approximately 100 EL. The length of hollow fiber is 1m
If so, in this example, the conventional filtration element is about 6
Double 2tr? The filtration module has a filtration area of .

In the embodiment shown in FIG. 6, six fan-shaped cylindrical frames /a each having a diameter of about 80 m and a plane shape or having the same size are attached around the extension module of the embodiment shown in FIG. 5. combine and surround,
The overall shape is circular, and the ends of the hollow fibers of approximately 800 mm are fixed in each cylindrical shape with a filling layer 3. The radius of curvature of each cylindrical frame/# is approximately 100 m on the inner circumference and approximately 140 m on the outer circumference.

In this example, if the length of the hollow fiber is 1 mm, it is about 48 rr, which is about 12 times that of the conventional filtration element. A filtration module of
Although the description has been made by fixing the books to each other, the number of books is not limited to this, and the shape when combined together is not limited to a cylindrical shape either.

Also, use a cylindrical frame to create this comrade @! Instead of being bonded in contact with each other, the hollow fibers with fixed hollow fibers may be bonded adjacently.

In addition, in the case of the external pressure type F passage in which raw water is passed through the tube wall from the outer periphery of the hollow fiber to obtain treated water inside the inner nitrogen, one end of the hollow fiber is opened at the end face of the packed bed 3 as shown in Fig. 2. , the other end is buried in a packed bed and closed.

In addition, in the case of internal pressure filtration, in which the raw water is passed through the upper part of the hollow fiber system and passed through the tube wall from the inner periphery to obtain the treated water outside the inner 9 threads, fill both ends of the hollow fibers as shown in Figure 3. An opening is made in the end face of layer J.

(Effect of the invention) Since the filtration surface shape of the filtration module according to the present invention is several times to 10 times that of the conventional Pm element, the number of 1fi elements used in large equipment, which used to be 100 1fi elements, is drastically reduced. However, it is possible to save labor and time required for installation, replacement, maintenance, etc., and to significantly shorten the time.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention. Fig. 1 is a plan view of the first embodiment, Fig. 2 is a partially sectional side view of the same external pressure type as above, and Fig. 6 is the same. 4, 5, and 6 are plan views of other embodiments, respectively. In the figures, /, lα, /b, /c
, -/d, /- indicate the cylindrical frame, C indicates the hollow fiber, and J indicates the filling number of the N-contact agent. q! Figure 1

Claims (1)

[Claims] A filtration module using hollow fibers, characterized in that a plurality of unit filtration elements, in which the ends of a large number of hollow fibers are kept spaced from each other and fixed with an adhesive, are joined together and adjacent to each other.