JPH1054599A - Filter of exhaust device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a filter which is simple in constitution and has good capturing ability by a constitution in which a suction side capturing plate is provided with a capturing cylinder toward an exhaust side capturing plate and with a suction hole opened in the suction side capturing plate and in the exhaust side capturing plate an exhaust hole is opened at a position out of correspondence to the capturing cylinder. SOLUTION: A suction side capturing plate 2 is provided with capturing cylinders 6 toward an exhaust side capturing plate 3 and with suction holes 5 opened in the suction side capturing plate 2. In the exhaust side capturing plate 3 exhaust holes 8 are opened at positions out of correspondence to the capturing cylinders 6. The exhaust gas impinges on the surface of the suction side capturing plate 2 where oily components which are heavier in specific gravity are captured and removed. Furthermore, the exhaust gas flowing into each of the capturing cylinders 6 through the suction hole 5 is throttled by the capturing cylinder 6 and, therefore with an increased flow velocity, impinges on the inner surface of the capturing cylinder 6, is captured, and removed. The exhaust gas flowing out of the capturing cylinder 6 through an exhaust outlet 9 impinges on capturing members 7 and turns in its direction, producing centrifugal force which works to capture and remove oily components. Through this process exhaust gas cleared of oily matter is discharged from exhaust holes 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter for an exhaust device disposed above a cooking device for a kitchen in a restaurant or the like.

[0002]

2. Description of the Related Art An exhaust device is provided above a cooking device in a kitchen in a restaurant or the like to release exhaust gas generated during cooking to the outside of a room. The exhaust device is provided with a filter positioned at an angle, and the filter captures and removes oils and fats contained in the exhaust gas.

The oil and fat contained in the exhaust gas has a complicated structure in order to change the flow direction of the exhaust gas and improve the trapping ability. For example, a trapping material having a bent portion having a substantially trapezoidal cross section is arranged continuously on each of the intake side and the exhaust side, and the bent portions of the trapping material are bent adjacent to each other. It is continuous by being inserted into the part with an appropriate interval. Therefore, in order to change the flow of the exhaust gas, a meandering structure is used, and the exhaust passage is formed long.

[0004]

As described above, the conventional filter not only has a complicated structure in order to improve the trapping ability, but also has a thick exhaust filter because the exhaust passage is formed long. Grease adheres to the surface, narrows the passage area of the exhaust passage, and lowers the trapping ability. Therefore, it is necessary to periodically clean the filter, and if this cleaning is neglected, it has caused a fire.

[0005]

In order to solve the above-mentioned problems, a filter according to the present invention comprises an intake-side capture plate and an exhaust-side capture plate arranged at an interval from each other. A capture cylinder provided toward the exhaust-side capture plate is installed, and an intake port of the capture cylinder is opened to the intake-side capture plate,
The exhaust-side capturing plate has an exhaust port opened at a position not corresponding to the capturing cylinder.

[0006] Further, the invention is characterized in that a portion of the exhaust-side capturing plate corresponding to the capturing cylinder is formed in an arc-shaped cross section so as to cover the exhaust outlet of the capturing cylinder.

[0007] Further, a portion of the exhaust-side capturing plate corresponding to the capturing cylinder is formed in a flat plate shape, and a cylinder is provided at an exhaust port of the exhaust-side capturing plate facing the intake-side capturing plate. Features.

[0008] At least the surface of the intake-side catch plate and the wall surface of the exhaust passage from the intake port of the intake-side catch plate to the exhaust port of the exhaust-side catch plate are coated with a fluororesin. .

First, the exhaust gas collides with the surface of the intake-side trap plate, whereby heavy oils and fats having a high specific gravity are trapped and removed. Further, the exhaust gas flows from the intake port into a small-diameter trap cylinder and is throttled. It becomes faster and is effectively caught and caught by the exhaust-side catching plate, and then is effectively removed by centrifugal force or the like while contacting the catching plate while turning to the exhaust port. And
Only the exhaust gas from which almost no fat is removed is discharged from the exhaust port. The oils and fats captured by the intake-side capturing plate, the capturing cylinder, and the exhaust-side capturing plate flow down and fall to the lower oil gutter.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a front view of the filter 1 of this embodiment as viewed from the intake side, and FIG. 2 is a rear view of the filter 1 as viewed from the exhaust side. The intake-side capturing plate 2 and the exhaust-side capturing plate 3 having the same shape as the intake-side capturing plate 2 are arranged at appropriate intervals. The four sides of the intake side capture plate 2 and the exhaust side capture plate 3 are held by a frame 4.

On the intake side capturing plate 2, a capturing tube 6 provided toward the exhaust side capturing plate 3 is provided, and an intake port 5 of the capturing tube 6 is opened to the intake side capturing plate 2. Then, an exhaust port 8 was opened in the exhaust side capturing plate 3 at a position not corresponding to the capturing tube 6.

The exhaust side capturing plate 3 is a capturing member 7 having an arc-shaped cross section and extending from one side frame 4 to the opposite frame 4.
Are arranged side by side at a predetermined interval, and a gap between the capturing members 7 serves as a slit-shaped exhaust port 8. The arc-shaped trapping member 7 is provided so as to cover the exhaust outlet 9 of the trapping cylinder 6,
The exhaust port 8 is disposed so as to be located between the adjacent capturing cylinders 6.

Therefore, the exhaust passage 11 of the filter 1 is connected from the intake port 5 to the exhaust port 8 of the filter 1 through the interior of the capture cylinder 6, and from the exhaust outlet 9 of the capture cylinder 6 to the exhaust port 8 through the arc-shaped passage of the exhaust side capture plate 2. Become.

The surfaces of the intake side capturing plate 2, the capturing cylinder 6, and the exhaust side capturing plate 3 are coated with a fluororesin.

The embodiment constructed as described above is mounted on a mounting plate 13 provided obliquely inside the hood 12, as shown in FIG. Then, the exhaust gas generated during cooking rises and collides with the surface of the intake-side capturing plate 2 of the filter 1, so that fats and oils having a high specific gravity are captured and removed on the surface of the intake-side capturing plate 2. Further, the exhaust gas flows into the capturing cylinder 6 from the intake port 5. The flow velocity is increased by restricting the inflow by the capturing cylinder 6, and also collides with the inner peripheral surface of the capturing cylinder 6 to be effectively captured and removed. Further, the exhaust gas discharged from the exhaust outlet 9 of the capturing cylinder 6 collides with the arc-shaped capturing member 7 and changes its direction while making contact along the arc. The fats and oils are captured and removed again by the centrifugal force when contacting and changing the direction of the capturing member 7. In addition, almost only the exhaust gas from which the oil and fat has been removed is discharged from the exhaust port 8. The flow of these exhausts is shown by arrows in FIG. Further, the exhaust gas passing through the filter 1 is discharged from the exhaust duct 15 to the outside of the room.

As described above, the intake side capturing plate 2, the capturing cylinder 6,
The oil and fat trapped and removed at various points on the exhaust-side catch plate 3 flows down, is collected in an oil gutter 14 provided below the filter 1, and is further stored in an oil cup (not shown).

In this embodiment, since the surfaces of the intake side capturing plate 2, the capturing cylinder 6, and the exhaust side capturing plate 3 are coated with the fluororesin, the surface of the intake side capturing plate 2 and the wall surface of the exhaust passage 11 are covered. The oils and fats are hard to adhere, flow down, and are collected in the oil gutter 14. Therefore, the passage area of the exhaust passage 11 does not cause clogging due to the adhesion of oil and fat,
Has excellent trapping ability. Further, since the trapping ability is improved with the above-described simple configuration, the thickness of the filter 1 can be made thinner and lighter without forming a long exhaust passage.

In the first embodiment, for example, the diameter of the intake port 5 is 30 mm, and the width of the exhaust port 8 is 10 mm. The intake port 5 is circular, but may be elliptical, triangular, or rectangular.
May be formed by arranging plate-shaped members side by side, and the intake port 5 may be formed in a slit shape. Although the exhaust port 8 is also slit-shaped, the exhaust-side capturing plate 3 is formed of a single plate member like the intake-side capturing plate 2, and the intake-side capturing plate 2 has a circular shape, an elliptical shape, a triangular shape, and a rectangular shape. The exhaust port 8 may be opened. Furthermore, in the first embodiment, the exhaust port 8 is configured to be located in the middle of the adjacent trapping cylinder 6.
Any position may be used as long as the position does not correspond to. Further, in the present embodiment, the intake ports 5 are regularly opened in the vertical and horizontal directions at regular intervals. However, irregular openings may be formed at irregular intervals. Of course, even in this case, the exhaust port 8 is provided at a position that does not correspond to the capturing tube 6.

Next, a second embodiment will be described with reference to FIGS.

The exhaust-side catching plate 3 is formed of a plate-like member. Therefore, the portion of the exhaust-side capturing plate 3 corresponding to the capturing cylinder 6 is flat. The cylindrical body 10 was provided at the exhaust port 8 of the exhaust-side capturing plate 3 so as to face the intake-side capturing plate 2. In addition, the exhaust port 8 was disposed so as to be located in the middle of the adjacent capturing cylinder 6.

Accordingly, from the intake port 5 to the exhaust outlet 9 of the trapping cylinder 6 through the inside of the trapping cylinder 6, and further from the exhaust inlet 16 of the cylindrical body 10 through the passage along the flat exhaust-side trapping plate 3. The exhaust path 8 of the filter 1 extends from the inside of the body 10 to the exhaust port 8.

The surfaces of the intake side capturing plate 2, the capturing cylinder 6, the exhaust side capturing plate 3, and the cylindrical body 10 are coated with a fluororesin.

In the second embodiment constructed as described above, similarly to the first embodiment, the exhaust gas is exhausted from the intake side capturing plate 2, the capturing cylinder 6, the exhaust side capturing plate 3, and the cylindrical body 10. During the passage through 11, the flow velocity is increased by colliding with various places or by restricting the inflow by the capturing cylinder 6 or the cylindrical body 10, and also, while changing the direction, the fats and oils having a high specific gravity are captured at various places. Removed. These exhaust flows are indicated by arrows in FIG.

In this embodiment, the intake side capturing plate 2, the capturing cylinder 6,
Since the surfaces of the exhaust-side capturing plate 3 and the cylindrical body 10 are coated with a fluororesin, oil and fat hardly adhere to the wall surface of the exhaust passage 11 and clogging does not occur, and excellent capturing ability is obtained. . In particular, by providing the cylindrical body 10 at the exhaust port 8, the exhaust is also throttled, so that the flow velocity is increased and the length of the exhaust passage 11 is increased, so that the trapping ability is improved. Furthermore, since the capturing ability is improved with the simple configuration as described above, the filter 1
Can be made thinner and lighter.

In the second embodiment, the inlet 5 has an elliptical shape with a wide diameter of 50 mm and a small diameter of 30 mm, and the exhaust port 8 has an elliptical shape with a wide diameter of 30 mm and a small diameter of 20 mm. still,
In addition, the shape may be circular, triangular, or rectangular. Furthermore, although the exhaust port 8 is disposed so as to be located in the middle of the adjacent capturing cylinder 6, any location may be used as long as the exhaust port 8 does not correspond to the capturing cylinder 6.

In the filters 1 of the first and second embodiments, the intake side capturing plate 2, the capturing cylinder 6, the exhaust side capturing plate 3, and the cylinder 10 are all covered with fluorocarbon resin. It may cover only the surface of the side capture plate 2 and the exhaust passage 11, or may not cover the fluororesin.

[0028]

As described above, the filter of the present invention has a simple structure, excellent trapping ability and a small thickness, unlike a complicated structure having a meandering structure and a long exhaust passage as in the prior art. Is provided. Further, in the configuration coated with the fluororesin, there is an effect that the oil and fat hardly adhere to the wall surface of the exhaust passage, and the exhaust passage is hardly clogged. Therefore, there is no need for regular cleaning as in the related art, and there is no fear of occurrence of a fire.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment of the present invention as viewed from an intake side.

FIG. 2 is a rear view of the embodiment as seen from the exhaust side.

FIG. 3 is an explanatory sectional view taken along line AA of FIG. 1;

FIG. 4 is a partially enlarged sectional view of FIG. 3;

FIG. 5 is a schematic longitudinal sectional view showing an attached state of the embodiment.

FIG. 6 is a front view of the second embodiment of the present invention as viewed from the intake side.

FIG. 7 is a rear view of the embodiment as viewed from the exhaust side.

FIG. 8 is a sectional explanatory view taken along the line BB of FIG. 6;

FIG. 9 is a partially enlarged sectional view of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Filter 2 Intake side capture plate 3 Exhaust side capture plate 4 Frame 5 Intake port 6 Capture cylinder 7 Capture member 8 Exhaust port 9 Exhaust outlet 10 Cylindrical body 11 Exhaust passage 12 Hood 13 Mounting plate 14 Oil gutter 15 Exhaust duct 16 Exhaust inlet

Claims (4)

[Claims] 1. An intake-side capturing plate and an exhaust-side capturing plate are arranged at an interval from each other, and a capturing cylinder provided toward the exhaust-side capturing plate is provided on the intake-side capturing plate. A filter for an exhaust device, wherein an intake port of a capture cylinder is opened to the intake side capture plate, and an exhaust port is opened to a position of the exhaust side capture plate that does not correspond to the capture cylinder. 2. A filter for an exhaust device according to claim 1, wherein a portion of said exhaust side capturing plate corresponding to said capturing tube is formed in an arc-shaped cross section so as to cover an exhaust outlet of said capturing tube. 3. A portion of the exhaust-side capturing plate corresponding to the capturing cylinder is formed in a flat plate shape, and a cylinder is provided at an exhaust port of the exhaust-side capturing plate facing the intake-side capturing plate. Item 7. A filter for an exhaust device according to Item 1. 4. A fluororesin is coated on at least a surface of the intake-side capturing plate and a wall surface of an exhaust passage from the intake port of the intake-side capturing plate to the exhaust port of the exhaust-side capturing plate. 4. The filter of the exhaust device according to claim 2, 2 or 3.