JPS61403A - Filter mechanism by tubular material - Google Patents

Abstract

PURPOSE:To obtain a predetermined filtering area by the reduced number of tubular materials, by setting a tubular material having bendability in a bent state to a filter mechanism. CONSTITUTION:Open-cell porous tubular materials 6 comprising polytetrafluoroethylene are bent around a center shaft 2 in a spiral form and the end part of each tubular material 6 is attached to the passing port provided to the end plate member 1 at the end part of the center shaft 2 by an open cap 9. A flange body 10 is attached so as to form a required gap between the end surface of the end plate member 1 and the end part of the open cap 9 and a fluid to be filtered is supplied into the flange part. By this structure, the number of the tubular materials for passing the fluid to be filtered through the tube walls thereof can be reduced to a large extent and the attachment and processing as a filter mechanism are simple and high filtering areal density is obtained. Said filtering areal density can be freely selected.

Description

[Detailed Description of the Invention] The present invention relates to the creation of a filtration mechanism using a tubular material, which allows the filtration area to be freely selected, allows a high filtration area density to be selected, and does not require complicated and expensive members. The purpose of this invention is to provide a filtration mechanism that is simple in structure, easy to maintain, and easy to handle.

Industrial Application Fields Filtration Processing Mechanism Conventional Technology Various types of filtration mechanisms have been proposed in the past. A filtration mechanism using multiple pieces of material is known. That is, a plurality of tubular materials are arranged in parallel in a housing, caps are placed on the top and bottom of the housing, and the tubular materials are attached to end plates provided within the cap, and the configuration of each tubular material is , the installation with the housing, the attachment of the cap, etc., have been devised in each case.

Problems to be Solved by the Invention However, in the conventional products as described above, the tubular material is generally arranged parallel to the axial direction of the cylindrical housing, which makes the process simple. - Even if the filtration area can be increased compared to the case of a cylindrical body, there is a limit to the filtration area density, and therefore, efficient filtration treatment cannot necessarily be achieved. In addition, it is necessary to construct the structure with at least 6 to 7 tubular materials, which requires a large number of component parts, and the structure is complex, its assembly is complicated, and its handling and maintenance are not easy. There is a disadvantage.

``Structure of the Invention'' Means for Solving the Problems The present invention has been devised to solve the problems of the conventional products as described above. In a mechanism in which the fluid to be treated passes through and is exposed to This is a filtration mechanism using a tubular material, which is characterized by a large filtration area.

Effect: According to the present invention as described above, the fluid to be treated is caused to pass through the wall of the tubular material having appropriate flexibility.
In this mechanism, by bending the tubular material with respect to the axis of the mechanism, a predetermined filtration area can be obtained with a small number of tubular materials. Furthermore, since the number of tubular materials required to obtain a predetermined filtration area is small, the configuration for arranging and attaching the tubular materials is simplified.

Embodiment A specific embodiment of the present invention will be described with reference to the attached drawings.
The end of each tubular material 6 is opened to the through hole 11 provided in the end plate member 1 attached to the end of the central shaft 2. Attached with cap 9, i.e. with open hole character
A stepped protrusion 19 is formed in the first hole 9 to be inserted into the opening of the tubular material 6, and the inner surface of the through hole 11 and the stepped protrusion 19
The tubular material 6 is clamped and stably attached by the .

In the illustrated case, a continuous porous polytetrafluoroethylene tube is used as the tubular material 6, and such a continuous porous polytetrafluoroethylene tube has excellent chemical resistance. Furthermore, a tube with a continuous porous structure formed by a stretching process exhibits a stable P-specific effect even on microparticles on the order of μm, and also has good flexibility as a tube.

The tubular material 6 according to the present invention as described above requires r
As shown in the figure, a plurality of rods can be appropriately combined according to the size and performance of the bending mechanism, but when a plurality of rods are combined in this way, at least one of them can be bent according to the present invention. It becomes what is given. That is, by making all of the plurality of pipes comply with the present invention as shown in the figure, the purpose of the present invention is to limit the number of installed element pipes and increase the filtration area density to the highest level, but in some cases, is the third
As shown in the figure, it can be used in combination with a tubular material 6a installed parallel to the axial direction according to the conventional method, and since the bent material according to the present invention and the tubular material according to the conventional method intersect, they cannot be used together with each other. This acts as a spacer to facilitate the outflow of the f-liquid and the like from the filtration mechanism.

A flange body 10 is attached to the end face of the end plate member 1 with a required gap formed between it and the end of the aperture cap 9, and the fluid to be filtered is supplied into the flange body 10. .

Regarding the continuous porous polytetrafluoroethylene tube as the tubular material 6, in addition to the hollow tube, a solid polytetrafluoroethylene rod 4 as shown in FIG. 4a is in contact with the inner wall of the tube f6, and a channel 5 is formed between the rod 4 and the inner wall.
It can be inserted and assembled in such a way that it is secured.

That is, in the case of the tubular material 6, the fluid to be treated passes through the tube wall from the inside of the tube toward the outside, but in the one shown in FIG. 5, the fluid to be treated passes through the tube wall from the outside of the tube toward the inside. Suitable for passing. The reinforcing support inserted into the tube is not limited to the shape shown in FIG. It may also be a tubular body with a cutout in area. In addition to solid polytetrafluoroethylene, such reinforcing supports include porous polytetrafluoroethylene, rEp (a copolymer of tetrafluoroethylene and hexafluoropropylene), and PFA (a copolymer of tetrafluoroethylene and perfluoroalkyl). Even if it is made of a copolymer (copolymer with vinyl ether) or the like, it is suitable for obtaining environmental resistance commensurate with the continuous porous polytetrafluoroethylene of the tubular material 6.

1 1-o□1 The above-mentioned sword according to the present invention can be made by bending at least a part of the tubular material used for the lid, and in particular, by using it in a snood shape. This can significantly reduce the number of tubular materials required for filtration equipment, and for example, when wrapped around a shaft material with the same diameter as the tubular material, one material can be used instead of six. This means that only one material is required for the outer layer, instead of multiple tubular materials.
It is possible to significantly reduce the number of required materials, thus making the assembly or processing of the filtration mechanism extremely simple, and achieving a high filtration area density, and freely selecting the filtration area density. As mentioned above, since the number of materials is small, the structure for installation, fluid supply, and discharge can be simplified, making it an invention with great industrial effects. .

[Brief explanation of drawings]

The drawings illustrate embodiments of the invention, and ``
FIG. 1 is a partially cutaway side view showing one embodiment of the invention, FIG. 2 is a plan view thereof, and FIG. 3 is a similar portion to FIG. 1 showing another embodiment of the invention. 4 is a plan view thereof, and FIG. 5 is a side view of a modified example of the tubular material. In these drawings, 1 is an end plate member, 2 is a central axis, 6, 6a 9 is a tubular material, 9 is an aperture cap, 11 is a through hole, and 19 is a stepped protrusion.

Claims (1)

[Claims] 1. A mechanism in which a fluid to be treated is passed through a wall of a tubular material having appropriate flexibility to be filtered,
A filtration mechanism using a tubular material, characterized in that a predetermined filtration area can be obtained with a small number of tubular materials by bending the tubular material with respect to the axis of the mechanism. 2. A filtration mechanism using a tubular material according to claim 1, wherein the tubular material is spirally turned and bent with respect to the axis of the mechanism. 3. The filtration mechanism using a tubular material according to claim 1, wherein the tubular material is a tube made of continuous porous polytetrafluoroethylene.