JPS6323944Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluid purifier, particularly a cyclone air purifier.

A conventionally known cyclone air cleaner has a configuration as shown in FIGS. 1 and 2, for example, and the configuration will be explained below. FIG. 1 shows a chrysanthemum-shaped element 1.
In this method, a strip of material 2 is folded along its entire width and wrapped around the circumferential surface of the protector 3, and after binding both end surfaces of the material with a binder 4, end plates 5 are attached to the top and bottom surfaces. It has the following structure.

In this filter element 1, contaminated air travels through channels formed between the folds as shown by the arrows in FIG. 1, and is purified while flowing through the walls of the channels.

A conventional cyclone air purifier equipped with the chrysanthemum-shaped filter element 1 having the above configuration will be explained with reference to FIG.
Moutlet 2 to which the intake port of the internal combustion engine is connected
2, a ventilation pipe 19 integral with the inlet 10 passes through the center of the over-element 1, and a portion consisting of an internal ventilation pipe 15 and a dust passage pipe 18 is attached below to a bolt 14 fixed to the fastener 11 and a wing nut. 16, and the end plate 8
The filter element 1 is fixed to the holder. Therefore, dirty air passes from the inlet 10 through the vane portion 13, is swirled in the swirling chamber A, pushes dust, etc. toward the wall by centrifugal force, and is led to the dust chamber B via the dust passage pipe 18. The dirty air from which dust has been removed passes from the outside of the filter element 1 through the internal ventilation pipe 15 as shown by the arrow, and relatively small residual dust is passed through the center of the filter element 1 to the outlet 22. Clean air is then sent to the intake port of the internal combustion engine.

However, the cyclone air cleaner having the conventional configuration as described above has the following drawbacks.

(1) When using a chrysanthemum-shaped over-element, if you want to increase the over-area, either increase the outer diameter of the over-element (actually, increase the folding width of the strip material) or increase the height. The only option is to make it higher, which ultimately leads to an increase in the size of the air cleaner itself.

(2) The path of contaminated air containing relatively small dust that has passed through the cyclone section may become complicated, resulting in increased flow resistance, or the flow of contaminated air passing through the chrysanthemum-shaped filter element may become uneven, leading to a decrease in performance. There is.

(3) In order to securely install the chrysanthemum-shaped filter element inside the cyclone air purifier, a complicated support structure must be constructed.

The present invention has been developed in view of the above points, and includes a plurality of ring-shaped filtering elements arranged in series in the axial direction, each having a large number of ring-shaped filtering walls that are continuously arranged in a wavy manner outward in the radial direction. By configuring the ventilation pipe to extend inside these filtration elements, the main body of the air purifier can be made smaller and lighter, and the passage space can be simplified to improve the filtering characteristics and reduce the required filtering characteristics. It is an object of the present invention to provide a cyclone air cleaner in which over-elements can be arranged in succession depending on the area.

The present invention will be described in detail below with reference to embodiments shown in the drawings. First, the flow element used in the cyclone air cleaner of the present invention will be described. As shown in FIG. 3, a fan-shaped member 50 is first created. Next, the length a-a' of the arc on the short side of this material 50 is the length of the inner circumference of the over-element 52 in FIG.
The length of the outermost periphery of the short side a-a' and the long side k-
The inner diameter of the over-element 52 is equally spaced between k' and
Using the radius R found from the outer diameter, create an arc b-b'...
…Add lines to j−j′. This arc b−b′……j−
By bending j', the material 51 shown in FIG. 4 is obtained. Next, by joining the ends a...k of this material 51 to a'...k' with resin 6, a large number of ring-shaped filtering walls 53 are continuously arranged in a wavy manner outward in the radial direction. A ring-shaped filter element 52 having a fifth
Obtained as shown in the figure.

In the over-element 52 having such a structure, the starting material 50 is fan-shaped, and the bent portion is an arc, and the line of the arc (for example, b-b') forms an angle of 90 degrees with both edges of the material 52. Therefore, there is no difference in the circumferential length of the over-element 52, so there is no need to use a stretchable material for the material 50, and any of paper, nonwoven fabric, felt, etc. can be used. Incidentally, the creasing of each arc a-a'...j-j' in FIG. 3 is performed by using a creasing roller or by a method such as hot pressing. The cyclone air cleaner of the present invention using the filter element 52 shown in FIG. 5 will be described below. The configuration of the cyclone air purifier of the present invention is shown in Figure 6, and the overall configuration can be roughly classified into 3 types:
There are three chambers, namely, a swirling chamber A consisting of a ventilation pipe having a blade part for swirling air, a dust chamber B, and a filtration chamber C in which the above-mentioned filtration elements 52, 52 are accommodated.

The swirling chamber A and the dust chamber B communicate with each other through a dust passage pipe 18, and the swirling chamber A and the dust chamber C communicate with each other through an air passage section 54 having an internal ventilation pipe 15.

A case gasket 21 attached to the outer periphery of the end plate 8 is sandwiched between a cap 23 and a case 24 forming a casing to maintain airtightness inside and outside.

In the over chamber C, two over elements 52, 52' are arranged on an end plate 8 having an opening 8a for clean air outflow, with the inner and outer peripheral portions kept airtight with adhesive 9. . The two end plates 8 are joined by an adhesive or the like at the joining end portion 8b in order to ensure the necessary overarea, and also maintain airtightness.

The upper end 8c of the end plate 8 is the blade part 13
The gasket 12 is placed between the gaskets 12 and 12 to maintain airtightness.

The bolt 14 and wing nut 16 installed on the fastener 11 fixed to the inlet 10 contain relatively small dust that has passed through the cap 23, end plate 8, vane part 13, ventilation pipe 19, and cyclone section. The support frame 17 having an air outflow opening and the partition plate 20 are tightened so that the ventilation pipe 19 is separated from the inner circumferential surface of each of the filter elements 52, 52 and extends inside them in the axial direction. We are united.

Next, the operation of the cyclone air cleaner having the above configuration will be explained.

When the outlet 22 is connected to the intake port of an internal combustion engine and the engine is operated, contaminated air taken into the inlet 10 is first swirled by the vane part 13 at the upper part of the swirl chamber A. At this time, relatively large dust particles in the contaminated air are pushed toward the wall by centrifugal force and swirl, separating them from the airflow. The separated dust is transferred to the blade part 13 along with a part of the airflow.
The air passage section 5 is connected by a partition plate 20 through a dust passage pipe 18 that communicates with a more downstream part of the ventilation pipe.
Enter dust room B, which is isolated from 4.

The contaminated air from which relatively large dust particles have been removed passes through the air passage 54 and flows into the passage chamber C. This contaminated air flows axially parallel to the vent pipe 19 and in parallel to each filter element 52, 52'.

Incidentally, since relatively small dust particles in the contaminated air that has entered the overchamber C are removed by the overflow elements 52, 52', clean air is sent into the engine.
Contaminated air flows in the direction indicated by the arrow.

In the above embodiment, the over-element 52
Although a cyclone air purifier using two elements is shown, the number of elements can be increased depending on the required area.

In addition, in the second embodiment shown in FIG.
A large-diameter over-element 52' is provided, and the over-elements having arbitrary inner and outer diameters are combined in consideration of the air flow.

By adopting such a configuration, it is possible to use the inside of the air purifier more effectively.

Although the material in the present invention has a fan-shaped bending line with an arc, it may also have a trapezoidal shape with the bending line being a straight line.Furthermore, the bending lines of the material may not be at equal intervals but at different intervals. good.

As described above, in the present invention, a plurality of ring-shaped filtration elements having a large number of concentrically arranged wavy filtration walls are arranged in series in the axial direction as a cyclone type air purifier, and inside of these filtration elements. Since the ventilation pipe is extended and the space between the ventilation pipes is configured as a passage for contaminated air, the main body of the air purifier can be reduced in size, making it more compact and lightweight, and preventing contamination between the ventilation pipe and the over-element. Since it can be used as an air passage, there is an effect that it becomes a simple structure without the need to provide a complicated passage space inside the air cleaner. In addition, depending on the required overflow area, overflow elements can be installed in series, allowing contaminated air to flow through each element in parallel, and contaminated air coming out of the ventilation pipes to flow parallel to the ventilation pipes. Because it flows,
It also flows parallel to the over-element, and has the excellent effect that each part of the over-element can be effectively used without any variation in the amount of dust.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway perspective view of a conventional chrysanthemum-type filter element, Figure 2 is a cross-sectional view of a conventional cyclone-type air purifier using a chrysanthemum-type filter element, and Figure 3 is a cyclone-type air cleaner of the present invention. Fig. 4 is a perspective view showing the bent state of the material shown in Fig. 2, and Fig. 5 is a plan view of the material shape of the perelement used in the cyclone air purifier of the present invention. 6 is a perspective view of the 5th
Fig. 7 is a cross-sectional view of a cyclone air purifier showing the state in which two continuous over-elements are installed inside the device. FIG. 2 is a cross-sectional view of the cyclone air cleaner. 8... End plate, 8b... End plate joint end, 14... Ventilation pipe, 52, 52'...
Filtration element, 53...ring-shaped filtration wall.

Claims (1)

[Claims for Utility Model Registration] A casing, and a plurality of ring-shaped axial flow filter elements arranged in series in the axial direction within the casing, each filter element passing the air to be purified in the axial direction. a ring-shaped axial flow filter element having a large number of ring-shaped filter walls that filter the air to be purified, and in which the ring-shaped filter walls are arranged in a continuous wave shape radially outward; a ventilation pipe disposed inside the ring-shaped axial-flow filtration element apart from the inner circumferential surface of each of the ring-shaped axial-flow filtration elements and extending in the axial direction; and a ventilation pipe provided in the casing. an inlet communicating with the casing, an outlet provided in the casing for discharging purified air, a blade portion provided in the ventilation pipe for swirling the air to be purified, and a portion downstream of the blade portion in the ventilation pipe. and an air passage portion communicating with the filtration chamber of the casing in which the filtration element is housed; and a dust chamber formed at one end of the casing and separated from the air passage portion by a partition plate. A cyclone air cleaner comprising a dust passage section that communicates the dust chamber with a portion of the ventilation pipe downstream of the blade section.