JPS6056523B2 - filtration device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filtration device, and more particularly to a filtration device that uses a filtration cylinder having a corrugated cross section as a filtration medium.

Conventionally, a cylindrical tube body having a wave-shaped cross section is fitted onto the outer periphery of a core body made of a porous cylindrical body, etc., and both ends are held down by donut plate-shaped end plates for installation. A filtration device is used.

In the above-mentioned filtration device, sumo wrestlers should replace the filtration cylinder with a new one if it becomes clogged. There wasn't enough material to ensure a good seal after replacement.

The present invention has been made for the purpose of providing a filtration device that can improve the ease of attaching a filter cylinder to a core body and enhance the sealing effect after attachment.

In order to achieve the above object, in the present invention, a filter cylinder having a wave-shaped cross section is divided into at least two parts in the axial direction, and the divided filter part is divided into several peaks at both ends in the longitudinal direction. The mounting portions at both ends of the other ridges, excluding the ridges, are made into a sliding state with a predetermined pitch using a hardening resin, etc., and fixed in an arc shape that can be brought into close contact with the outer peripheral surface of the core, and the free ridges at both ends that do not harden are It is characterized in that the divided filters are connected and fitted around the outer periphery of the core.

The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 1 shows a longitudinal section of an embodiment of a filtration device according to the present invention. Its basic structure is the same as the conventional one: a core 1 made of a porous cylindrical body; It has a filtration cylinder 2 that is fitted, and donut-shaped end plates 3, 3 that are fitted to both ends of the core 1 and fix the filtration cylinder 2.

The p-type over-tube body 2 is formed into a cylindrical shape by bending furnace paper into a corrugated shape, and usually has about 160 ridges in the circumferential direction. It is fitted along the outer periphery.

In the present invention? The tube body 2 is divided in the axial direction into a plurality of divided filter bodies 4, 4, and this divided filter body 4 has a plurality of ridges other than a few ridges at both ends in the longitudinal direction, as shown in FIG. The attachment portions 4A at both ends of the portion are fixed by a hardening resin 5 or the like in a sliding state at a predetermined pitch and in an arc shape that can be brought into close contact with the outer peripheral surface of the core body 1.

The divided filter body 4 configured as described above is divided into two, three, four, etc. as appropriate depending on the thickness of the core body 1, and the free ridges 6 at both ends in the longitudinal direction which are not solidified are divided into two to three parts. It is sufficient to have about five peaks, but this number can also be selected as appropriate.

In order to fit the above-mentioned divided filter body 4 onto the outer peripheral surface of the core body 1,
As shown in Figure 3, the inner surfaces of the divided filter bodies 4, 4... are placed so as to cover the outer peripheral surface of the core body 1, and the free ridges 6, 6 at both ends thereof are overlapped with each other. or by preparing a wedge-shaped fixing piece 7 made of an elastic material as shown in Figure 4 and press-fitting it into the free ridges 6 and 6 as shown in Figure 5. Even if the free peaks 6, 6 of the portion collapse, they can be fixed by pressure contact.

In this way, the packing 8 is interposed on the inner periphery of the mounting portion 4A, and the end plates 3, 3 are fitted, and the fixing band 9 is tightened to form a plurality of divided filter bodies 4, 4, etc. as shown in the first figure.
As a result, the offshore cylinder body 2 is formed 5.

Therefore, according to the present invention, in the above-mentioned installation method, in which a drinking cylinder body having a wave-shaped cross section is fitted onto the outer periphery of a core body made of a porous cylinder body or the like, and both ends of the cylinder body are pressed by end plates. It is composed of a divided filter body which is divided into at least two parts in the axial direction of the offshore filter body having a corrugated cross-sectional shape, and this divided filter body has two ridges attached at both ends of the other ridges except for a few ridges at both ends in the longitudinal direction. The core is made by bending it with a curable resin or the like at a predetermined pitch and solidifying it into an arc shape that can be brought into close contact with the outer peripheral surface of the core. Since I made it fit around the outer periphery of the Is it possible to get the specified pitch just by arranging the excess body along with the core body? It is possible to form a tubular body, and the installation work is extremely easy because there is no need to fit it from the axial direction of the core body as in the conventional case.Furthermore, most of the installation ends of the split filter body can be installed at a predetermined pitch. Since it is solidified and placed in a sealed state from the beginning, it is sufficient to seal only the free mountain portion, and the sealing is easy and reliable, and has various excellent effects.

[Brief explanation of drawings]

Fig. 1 is a longitudinal side view showing an embodiment of the filtration device (according to the present invention), Fig. 2 is a perspective view showing an example of a divided overpass body constituting the overflow cylinder in Fig. 1, and Fig. 3 FIG. 4 is an enlarged perspective view showing the fixing piece, and FIG. 5 is an explanatory diagram of the case of fixing using this fixing piece. . 1...Core body, 2...Run tube body, 3...
...End plate, 4...Divided p overbody, 5
......Curing resin, 6...Free mountain part,
7... Fixing piece, 8... Packing, 9...
...Fixed band.

Claims (1)

[Claims] 1. A filter cylinder having a wave-shaped cross section is fitted onto the outer periphery of a core made of a porous cylinder or the like, and its both ends are pressed by end plates. Consisting of a split filter body that is divided into at least two parts in the axial direction, and this split filter body has a predetermined pitch made of hardening resin, etc. at both ends of the ridges except for a few ridges at both ends in the longitudinal direction. It is characterized by being fixed in an arc shape that can be bent and brought into close contact with the outer circumferential surface of the core body, and the divided filter bodies are connected at the free peak portions of both ends that do not solidify and are fitted onto the outer circumference of the core body. A filtration device.