JPS60110312A - Filter - Google Patents

Abstract

PURPOSE:To obtain a filter having an agitating and mixing effect and a high filtering effect and easy to manufacture, by a method wherein a plurality of cylindrical bodies having a filtering function are arranged in the longitudinal direction, and longitudinal spiral vane bodies provided in theinterior thereof are combined in a specified manner. CONSTITUTION:Elements comrising a cylindrical body and a vane body formed, for example, as one body for the filter are prepared. For example, left and right rotary type elements 1, 2 respectively comprise cylindrical bodies 5, 7 and vane bodies 6, 8 provided in the interior of the bodies 5, 7 and twisted spirally in the longitudinal direction. The vane body 6, 8 bisects the inside radial cross section of the cylindrical body 5, 7, and is rotated clockwise and counterclockwise by 90 deg. in the longitudinal direction of the cylindrical body 5, 7. The elements 1, 2 are alternately arranged, and end edges of the vane bodies 6, 8 are ser to be orthogonal to each other to obtain the filter 15. When the filter is provided while directing the longitudinal direction toward a fluid source, a fluid is passed spirally through a passage partitioned by the cylindrical bodies and the vane bodies, is mixed with a fluid passed through the other passage at the connection points of the elements, and is filtered by the bodies.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to combustible particulates such as carbon contained in the exhaust gas of diesel engines, industrial engines, etc., particularly combustible particulates such as carbon contained in the exhaust gas of automobiles, combustion furnaces,
The present invention relates to a filter device for removing particulates emitted from industrial equipment such as boilers and dust generators, oil smoke generated in kitchens, etc., and particulates in liquids.

Conventionally, it has been proposed to use a filter in the exhaust system or exhaust recirculation system in order to remove carbon particulates contained in the exhaust gas of automobile engines, but after long-term use, carbon accumulates and becomes clogged. This has the disadvantage of causing a pressure loss of vA. To overcome this drawback, a filter device (Japanese Unexamined Patent Application Publication No. 58-117) that removes carbon particles using a two-cam structure filter or a spongy structure filter made of porous conductive ceramic was developed.
-137423) or a method for purifying oil smoke by bringing air containing oil smoke into contact with a catalyst coating layer on a ceramic paper tail heating element formed into a honeycomb shape (Japanese Unexamined Patent Publication No. 58-30
No. 324) and other filter devices have been proposed.

The present invention was made against this technical background, and provides a novel filter that is easy to manufacture due to its structure made of cotton, has a large filtration area per unit volume, and has a stirring and mixing effect on fluids. The purpose is to provide equipment. The filter device according to the present invention is a filter for purifying the exhaust gas of automobiles, especially automobiles using diesel engines with high exhaust gas concentration, and a filter for cleaning particulates emitted from various industrial equipment such as combustion furnaces, boilers, and dust generators. To remove oil smoke, fine particles in liquid, etc. generated in The blade body is characterized in that the passage pipe is disposed toward the fluid source, and the end edges of adjacent blade bodies are arranged to intersect with each other.

Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. 1 to 4 show an element in which a cylindrical body and a blade body of a filter device are integrally molded. The 906 right-handed rotating element 1 shown in FIG. 1 has a cylindrical body 5 and a blade body 6 provided inside the body and spirally twisted in the longitudinal direction thereof. The vane body 6 divides the inner radial cross section of the cylindrical body 5 into two, and is rotated by 90° clockwise in the longitudinal direction of the cylindrical body 5. Figure 2 shows 9
06 left rotation type element 2 is shown. This element 2 has a cylindrical body 7 and a vane body 8 provided therein and spirally twisted by 90° counterclockwise in the longitudinal direction thereof. The 1806 clockwise rotation type element 3 shown in FIG. 3 and the 180° left rotation type element 4 shown in FIG. Blade bodies 10 and 1
2 is spirally twisted in the longitudinal direction of the cylindrical bodies 9 and 11, and the blade bodies 10 and 12 are rotated clockwise and counterclockwise, respectively. In these elements 1 to 4, the cylindrical body and the blade body are formed by integral molding, and can be easily manufactured by, for example, an injection molding method, an extrusion molding method, a powder molding method, or the like. Each element 1 to 4 is made of a metal material such as stainless steel, a plastic material, a ceramic material, carbon fiber, glass, activated carbon, etc.
Alternatively, it is a porous material that is manufactured from a composite material of these materials and exhibits a function of filtering fine particles in a fluid. As shown in FIG. 5 as an example, an enlarged perspective view of the element 1,
An outer annular projection 13 is formed on one edge of the cylindrical body 5 of each of these elements, and an inner annular projection 14 is formed on the other edge. Then, by fitting the outer annular projection 13 to the inner annular projection 14,
The elements can be connected in their longitudinal direction, thereby forming a passage tube with vanes inside.

In addition, at the connection point of the elements, the cylindrical body and the diaphragm may be fixed by welding or adhesive, but each element may be connected to a pipe with many holes in the thickness direction, or a porous body such as a cylinder or a prism. It may also be fixed by fitting it inside.

Next, a filter device constructed by combining such elements will be described. FIG. 6 shows a filter device 15 that combines a 90' clockwise rotation type element 1 and a 90 degree left rotation type element 2. This filter device arranges elements 1 and 2 alternately,
The end edges of the blade bodies 6 and 8 are crossed. When such a filter device 15 is installed with the longitudinal direction facing the fluid source, the fluid flows through the blades 6 in the cylindrical body 6 or 7.
Or, it flows spirally through the passage partitioned by 8, and mixes with the fluid flowing through the other passage at the connection point of each element. Thus, while the fluid flows through the passage, the fluid rotating along the surface of the spiral blade is filtered by the cylindrical body. In this way, the fluid flows through the passage partitioned by the spiral blades, and is efficiently filtered while being stirred and mixed by the merging and splitting action.

Although various combinations of elements can be set, typical examples thereof are shown in FIGS. 7 to 10. 7th
The filter device 16 shown in the figure has 180' rotation type elements 3 and 4 arranged alternately, and the end edges of the blade bodies 10 and 12 are orthogonal to each other. In addition to this, combinations such as connecting only right-handed rotation elements or only left-handed rotation elements can be considered, but as shown in FIG. 8, element 1 or 2 and element 1 Alternatively, a cylindrical spacer 18 having the same inner and outer diameters as the cylindrical bodies 5 and 7 may be interposed between the cylindrical bodies 5 and 7. Further, as shown in FIG. 9, the filter device 20 can be assembled by connecting truncated conical elements 21st21tz21c, .

In this case, it is preferable that the end of the filter device 20 on the side with the smaller passage cross-sectional area faces the fluid source.

In addition, in order to further enhance the filtering effect of each of these filter devices, it is also possible to further enhance the filtering effect by covering the outer peripheral surface of each element itself with a porous body 23, as shown in FIG. .

When the filter device configured as described above is used for purifying liquid, the filter device 15 is installed inside the cylindrical pipe 24 and the liquid FA is made to flow through the filter device 15, as shown in FIG. Bye.

The filtered filtrate is discharged from the filtrate outlets 25a + 25b, and the final liquid B is discharged from the outlet side. - When used as an exhaust gas purification filter for automobiles, etc., as shown in Figure 12, - install it in the middle of the exhaust pipe,
The exhaust gas may be passed through the filter device ff115. In addition, in order to further enhance the filter effect, it is necessary to
As shown in FIG. 3, a plurality of filter devices 15 are installed,
Moreover, the outlet side of the filter device 15 may be closed. In order to further enhance the filter effect, as shown in FIG.
The ends of the l15 may be configured such that one end is in an open state and the other end is in a closed state.

In this case, by forming each element and the porous body from a metal material with a catalytic action or a ceramic material supporting a catalytic metal, the exhaust gas can be absorbed while the exhaust gas is flowing through the filter device. Nitrogen oxides (NOx) and the like can be removed.

Furthermore, by forming each element and the porous body from a conductive ceramic material or the like, it is possible to burn and remove combustible fine particles such as carbon by heating with electricity. moreover,
By arranging each element and the porous body so that the diameters of the pores are indicated in the flow direction of the exhaust gas, it is possible to prolong the filtration time and increase the filtration efficiency.

On the other hand, when using it as a oil smoke purification filter, the first
As shown in FIG. 5, for example, a large number of filter devices 15 may be arranged in a bundle in the radial direction. In this case,
The gaps between each filter device 16 may be filled with the constituent material of each element, such as a porous plastic material, or an adhesive. Furthermore, in order to purify even more effectively, as shown in FIG. 16, a plurality of passage holes are provided in the longitudinal direction of the cylindrical porous body 30, and each element is arranged in these passage holes. may be configured. In this case, each element and the porous body are made of a metal material that is water-resistant and oil-repellent.
By forming it from a plastic material or ceramic material, or by supporting a substance having water-repellent and oil-repelling properties such as a silicon compound, zirconium compound, or fluororesin, it becomes possible to efficiently remove oil smoke. Although the porous body has a cylindrical shape, it is possible to adopt various shapes such as a rectangular parallelepiped, a triangular shape, a hexagonal shape, etc. depending on the location where the filter device of the present invention is applied.

As described above in detail, according to the present invention, it is possible to obtain a filter device that has a stirring and mixing effect, has a high filter effect, and is easy to manufacture.

Dimensions such as the diameter and length of each element can be set arbitrarily, and appropriate ones can be selected depending on the type of fluid. Furthermore, the element is not limited to the two-part passage type as in the above embodiment;
It is also possible to use a type that is split and spirally rotated by 60° in the longitudinal direction, thereby further increasing the filtering effect. In the above embodiment, the blade body and the cylindrical body were formed by integral molding, but they were formed separately, and the blade body was fitted into the cylindrical body and the longitudinal direction It may also be connected to.

[Brief explanation of the drawing]

Figures 1 to 4 are perspective views of the elements, and Figure N5 is the first
6 to 10 are schematic diagrams of the filter device, and FIGS. 11 to 16 are schematic diagrams showing application examples of the filter device. II2+394...Element, 5,7,9゜11・
...Cylindrical body, 6,8.10.12...Blade body, 15
．． 16117120.22... Filter device, 18.
...Spacer, 23, 26.27, 28°29.30
...Porous body. Figure 1 Figure 2 Figure 3 Figure 4 Figure 6 Figure 101〆23 Figure 12 Figure 13 Figure 14

Claims (1)

[Scope of Claims] 1. A passage pipe in which a cylindrical body having a filtering function is arranged in the longitudinal direction, and a plurality of planar bodies provided in each cylindrical body and twisted in a spiral shape in the longitudinal direction. What is claimed is: 1. A filter device having a blade body, wherein the end edges of adjacent blade bodies are arranged so as to intersect with each other. 2. The filter device according to claim m1, wherein the cylindrical body has a cylindrical shape. 3. The first aspect of the present invention is characterized in that the cylindrical body has a truncated cone shape that widens in the direction away from the fluid source.
The filter device described in section. 4. The filter device according to claim 2 or 3, wherein a plurality of passage pipes are arranged in the radial direction. 5. Any one of claims 2 to 4, wherein the blade body is twisted by 90° in the longitudinal direction of the cylindrical body, dividing the inside of the cylindrical body into two. The filter device described in section. 6. Any one of claims 2 to 4, wherein the blade body is twisted by 606 in the longitudinal direction of the cylindrical body, dividing the inside of the cylindrical body into three parts. The filter device described in .