JP2710584B2 - Grease filter device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grease filter device to be installed in a business exhaust duct such as a restaurant.

[0002]

2. Description of the Related Art Generally, a grease filter device of this kind is provided with a ceramic in a state in which a groove is directed inward and a frame is formed into a rectangular channel-shaped cross section and the edge is fitted to the groove. A filter unit in which a filter made of a porous sheet, stainless steel corrugated sheet, metal mesh, or the like is fitted, is placed alone or in multiples in the inlet frame of the exhaust duct, and the fan is driven. When exhausting room air in a kitchen or the like from the exhaust duct to the outside, the oil and fat content in the air is captured by a filter and guided to and collected by an oil and fat collecting unit provided in the exhaust duct.

[0003]

However, simply,
When filter units are juxtaposed, if there is a slight gap between adjacent filter unit frames due to slight manufacturing errors in the entrance frame of the exhaust duct or the frame of the filter unit, the gap will Due to the lower air resistance than passing through, considerable air may directly flow into the exhaust duct and not only pollute the exhaust to the outside, but also oil and fat may adhere to the exhaust duct and cause a fire. Increase the risk of causing In addition, fats and oils in the air passing through the gap may adhere to the frame, flow out of the filter unit and look dirty, and this may drop into the room and cause contamination, resulting in environmental hygiene. Not preferred.

[0004]

SUMMARY OF THE INVENTION The present invention has been made based on the above circumstances. It is an object of the present invention to dispose a plurality of filter units side by side to provide a large capacity filter effect. In this way, the flow of air through the filter is shut off, the oil and fat content is reliably captured in the ventilation area of the filter, and the oil and fat content is prevented from adhering in the exhaust duct. Another object of the present invention is to provide a grease filter device that suppresses the outflow of fats and oils from the gaps and eliminates the outflow and dripping of the fats and oils from the gaps to the indoor side.

[0005]

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments. According to the invention of the present application, a plurality of filter units F-1 and F-2 in which the filter 2 is fitted into the frame 1 are provided.
In the grease filter device fitted and juxtaposed to the entrance frame 3A of the exhaust duct 3, at least one of the adjacent filter units F- so as to close the gap C between the adjacent filter units F-1 and F-2. The first frame 1 is equipped with ventilation blocking members 4 and 14.

According to the first aspect of the present invention, the first of FIGS.
As shown in the embodiment, in the above-described grease filter device, a band-shaped air blocking member 4 made of metal or plastics is provided on the back surface of the side frame 1A of the frame 1 of one adjacent filter unit F-1. And the rear surface of the side frame 1A of the frame 1 of the other adjacent filter unit F-2 is in contact with the front surface of the ventilation blocking member 4.

According to the second aspect of the present invention, the second
As shown in the embodiment of the present invention, in the above-described grease filter device, the adjacent one and the other filter units F
-1 and F-2 are characterized in that openings on both sides of a ventilation blocking member 14 made of metal or plastic and having an H-shaped cross section are fitted to the side frame 1A of the frame 1.

[0008]

According to the present invention, the gap C between the frame members 1 of the adjacent one and the other filter units F-1 and F-2 is closed by the ventilation blocking member 4 or 14. The flow of air outside the filter area of the filter unit fitted into the entrance frame 3A of the exhaust duct 3 can be completely shut off, and the oil and fat components are reliably captured in the ventilation area of the filter and adhere to the exhaust duct. To prevent that. In addition, it is possible to suppress the outflow from the gap C to the outside and to prevent the outflow and dripping of the oil and fat from here to the indoor side.

According to the first aspect of the present invention, after one filter unit F-1 having the ventilation blocking member 4 is fitted into the entrance frame 3A of the exhaust duct 3, the other filter unit F-2 may be fitted. Its installation and removal are convenient.

According to the second aspect of the present invention, the gap C between the frames 1 of the one and the other filter units F-1 and F-2 is double-closed by the front and rear plate pieces of the ventilation blocking member 14 so as to be airtight. Is good, and the grease in the gap C is reliably collected in the grease recovery device 8 through the openings on both sides of the ventilation blocking member 14.

[0011]

Embodiments of the present invention will be described below. FIGS. 1 to 5 show a first embodiment. As shown in FIG. 1, this grease filter device includes a plurality of filter units F-1 and F-2 in an entrance frame 3A of an exhaust duct 3.
Are fitted and juxtaposed. Each filter unit F-1,
F-2 is a configuration in which a filter 2 is fitted inside a rectangular frame 1, and the frame 1 is formed of both side frames 1A.
, Upper and lower frames 1B and 1C, and a middle frame 1D. Each frame has a channel-shaped cross section with the groove 1E facing inward.
A sheet of ceramic porous material inside the left and right openings of
A filter 2 in the form of a stainless steel corrugated sheet or metal mesh is fitted and fixed. The bottom of the lower frame 1C is provided with a hole 1F for oil and fat outflow. An annular handle 5 is formed on both side frames 1A.

The above filter units F-1 and F-2
The grease filter device where
An exhaust duct 3 having an inverted trapezoidal shape is provided. At least on the front side thereof, a rectangular frame-shaped entrance frame 3A is opened, and inside the exhaust duct 3 is a lower part of the entrance frame 3A. Then, a filter receiver 6 for supporting the filter unit is mounted, and an oil pan 7 is provided below the filter receiver 6. An oil collecting unit 8 is attached to the outer bottom of the oil pan 7. On the inner surface of the side plate of the exhaust duct 3, filter units F-1, F
A projection is formed along the back surface of the filter units F-1 and F-2 so as to support the filter units F-1 and F-2.
Is held in contact with the back of the entrance frame 3A.

Furthermore, a plurality of filter units F-
1, at least so as to close the gap C between F-2,
A ventilation blocking member 4 is provided inside the exhaust duct 3. In the first embodiment, the ventilation blocking member 4 is made of a metal or plastic strip-shaped member such as stainless steel, and is provided on the back surface of the side frame 1A of the metal frame 1 of one filter unit F-1. A half portion is fixed by welding or the like, and is projected like an ear over substantially the entire vertical width of the frame body 1. The back surface of the side frame 1A of the frame body 1 of the other adjacent filter unit F-2 is the ventilation blocking member. The gap C is closed by contacting the front surface of the gap 4.

In order to mount the above-mentioned filter unit on the entrance frame 3A of the exhaust duct, one filter unit F-1 provided with the ventilation blocking member 4 is mounted, and then the other filter unit F-2 is mounted. What should I do?

FIGS. 6 and 7 show a second embodiment. In this embodiment, a ventilation blocking member 14 having an H-shaped cross section is used in place of the above-described ventilation blocking member. The ventilation blocking member 14 is attached to the entrance frame 3A of the exhaust duct after the opposite side frames 1A of the one and the other filter units F-1 and F-2 are fitted into the openings on both sides thereof in advance. is there. Even if the ventilation blocking member 14 is fitted and fixed to the side frame 1A of one of the filter units F-1 in advance by welding or the like, the structure is separated from the two filter units. The side frame 1A may be fitted.

In the first and second embodiments, the ventilation blocking member 4 or 14 is used by itself or in order to increase the confidentiality with respect to the portion of the mating filter unit that contacts the frame 1. , By attaching other members,
An elastic contact surface can be configured.

In the configuration of the first and second embodiments, with the filter units F-1 and F-2 fitted and juxtaposed inside the entrance frame 3A, the ventilation blocking members 4 or 14 are used.
Since the gap C of the frame 1 of the adjacent filter unit is closed, the flow of air outside the filter area of the filter unit can be completely shut off.
The oil and fat component is reliably captured and the oil and fat component is prevented from entering and adhering to the exhaust duct 3. In addition, it is possible to suppress the outflow of the oil and fat from the gap C and to prevent the outflow of the oil and fat from the gap C to the indoor side.

[0018]

According to the invention of each claim of the present application, a ventilation block made of metal or plastics is provided so as to close a gap between a plurality of adjacent filter units, and the filter unit is provided with its own weight and wind pressure. Since the back surface of the side frame of the unit and the plate surface of the ventilation blocking member are joined by surface contact, when a large-capacity filter effect is exhibited, the air flow in the gap between the filter units is effectively blocked, The oil and fat can be reliably captured in the ventilation area of the filter to prevent the oil and fat from being discharged to the outside air, and the danger of causing a fire due to the adhesion of the oil and fat in the exhaust duct can be prevented. In addition, it is possible to suppress the outflow of oil and fat from the gap, and to prevent the outflow of oil and fat from the gap to the indoor side. Therefore, the working environment is clean without polluting the external environment.

According to the first aspect of the present invention, one filter unit F-1 having the ventilation blocking member 4 may be fitted into the entrance frame 3A of the exhaust duct 3, and then the other filter unit F-2 may be fitted. Its installation and removal are convenient.

According to the second aspect of the present invention, the gap C between the frame members 1 of the one and the other filter units F-1 and F-2 is double-closed by the front and rear plate pieces of the ventilation blocking member 14 so as to be airtight. Is good, and the oil and fat in the gap C passes through the openings on both sides of the ventilation blocking member 14 and is reliably collected in the oil and fat recovery device.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a vertical sectional side view.

FIG. 3 is a front view (A) and a side view (B) of the filter unit.

FIG. 4 is an exploded perspective view of the filter unit viewed from the back side.

FIG. 5 is a cross-sectional view showing a mounting state of the filter unit.

FIG. 6 is an exploded perspective view of a filter unit according to a second embodiment of the present invention as viewed from the back side.

FIG. 7 is a cross-sectional view showing an attached state of the filter unit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Frame body, 1A side frame, 1B upper frame, 1C lower frame, 1D middle frame, 1E groove part, 1F hole 2 Filter 3 Exhaust duct, 3A entrance frame 4, 14 Ventilation blocking member 5 Handle 6 Filter receiver 7 Oil pan 8 Oil and fat Recovery unit F-1, F-1 Filter unit C Clearance

Claims (3)

(57) [Claims] In a grease filter device in which a plurality of filter units each having a filter fitted therein are fitted and juxtaposed in an inlet frame of an exhaust duct, a side of the frame unit of one adjacent filter unit. On the back of the frame
A grease filter characterized by projecting a metal or plastic strip-shaped ventilation blocking member, and abutting a back surface of a side frame of a frame of another adjacent filter unit to a front surface of the ventilation blocking member. apparatus. 2. In a grease filter device in which a plurality of filter units each having a filter fitted therein are fitted and juxtaposed in an entrance frame of an exhaust duct, the frame units of one and the other filter units adjacent to each other. A grease filter device characterized in that openings on both sides of a ventilation blocking member made of metal or plastic and having an H-shaped cross section are fitted to the side frame of (1). 3. A ventilation shield made of said metal or plastics.
The contracting member has an elastic contact surface.
The grease filter device according to claim 1 or 2.