JP2581741Y2 - Filter for deodorizing and purifying indoor air - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter used for deodorizing and purifying air in a food processing factory, a large restaurant, a kitchen such as a hotel, and other malodorous environments.

[0002]

2. Description of the Related Art In a food processing factory, a large restaurant, a hotel, etc., a filter device for eliminating various odors generated during processing or cooking of food and for purifying air is prepared. It is a large one, and a plurality of forming elements e are inserted and arranged in a frame body A in which a pair of front and rear groove members a are connected by a mesh member b as shown in FIG.
With one filter F, a plurality of this filter F
The frame A has a V-shape or an inverted V-shape when viewed from the side.
The front edges or the rear edges of the filter units are alternately brought into contact with each other, integrally joined by welding or the like to form a filter unit, and the periphery thereof is sealed and accommodated in the duct D.

As the above-mentioned forming element e, as shown in FIG. 5, an intermediate nonwoven fabric 2 made of a thermoplastic synthetic braid and layers of granular deodorizers 3 such as activated carbon, activated alumina and zeolite are alternately layered. 6. A press-pressing to form a mat and partially heat-welding the non-woven fabric 2 and the granular deodorant 3, wrapping the entire upper and lower portions with the non-woven fabric 1, and heat-sealing the seams, or FIG. The intermediate non-woven fabric 2 and the layer of the granular deodorant 3 are alternately overlapped as described above, and the outside thereof is covered with a dish-shaped upper cover non-woven fabric 1a with a brim and a plate-shaped lower cover non-woven fabric 1b. And the upper and lower cover non-woven fabrics 1a and 1b are embossed at appropriate locations to provide inwardly protruding ridges 4a and 4b, and the intermediate non-woven fabrics 2 and the intermediate non-woven fabric 2 and the cover non-woven fabric are provided by these ridges 4a and 4b. a, by fixing the 1b, divided into a number of chambers 5, containment particulate deodorant 3 to their small chamber 5, such as those to prevent offset due to the dropping is used.

The former brimless forming element e is simply fitted into the grooved frame A from the side as shown in FIG. 7, while the latter brimless forming element e is as shown in FIG. It is assembled in the frame A so that the brim portions 1c of the adjacent ones are overlapped.

[0005]

However, among the above-mentioned conventional filters, in the case where the forming element is simply incorporated in a groove-shaped frame, the forming elements are not connected to each other due to vibration during use or deformation of the element. A gap is formed between them, and the odorous gas leaks from the gap. On the other hand, in the case where the brim portions are overlapped with each other, the brim portions 1c of the adjacent elements are formed as shown in FIG. The periphery of the cover non-woven fabric 1b is in a thermo-compression-bonded portion and becomes a plate with a hard and uneven surface, and the brim portion does not become soft, but becomes a hard plate, and a gap is formed between them. If present, the odor gas will leak from the gap. In this case, it is conceivable to weld the respective flange portions 1c to prevent leakage. However, if the flange portions are connected to each other, the element becomes large and handling becomes troublesome.

[0006] Therefore, the present invention has an object to ensure the overlap between the adjacent elements without increasing the size of the molding element and to prevent the odorous gas from leaking.

[0007]

According to the present invention, the present invention provides a filter for deodorizing and purifying indoor air, in which an intermediate nonwoven fabric and a granular deodorant layer are alternately stacked, and the outside of the filter is shaped like a dish with a flange. A plurality of forming elements which are wrapped with the upper cover non-woven fabric and the plate-shaped lower cover non-woven fabric and which are formed by pressing the peripheral portion into a brim portion, are provided in a frame body in which a pair of grooves are connected by a mesh material. One molding element with the lower part and the other molding element with the flange part facing up are inserted alternately, and the main body side edge of the other molding element is overlapped on one molding element, while the other molding element is It is characterized in that the collar portion is disposed so as to overlap the main body side edge portion of one of the molding elements.

[0008]

FIG. 1 shows a molding element e used in the present invention, in which an intermediate nonwoven fabric 12 made of a thermoplastic synthetic braid and granular deodorization of activated carbon, activated alumina, zeolite, etc. are sprayed thereon. The layers of the agent 13 are alternately stacked, and the outside thereof is covered with the same material and covered with a dish-shaped upper cover non-woven fabric 11a and a plate-shaped lower cover non-woven fabric 11b. Is formed.

Then, the molding element e is embossed, and the upper and lower cover non-woven fabrics 11a, 11b are formed.
A plurality of inward ridges 14 (the lower ones are not shown) having a half height of the thickness of the element are provided at required places, and the intermediate woven fabric 12 is wavy in the vertical and horizontal directions by these ridges 14. The intermediate non-woven fabric 12 and the upper and lower cover non-woven fabrics 11a and 11b are heat-welded, the interior of the element is divided into a plurality of small chambers, and the granular deodorant 13 is sealed in each of the small chambers and heat is applied to the non-woven fabric. Welded.

A plurality of such forming elements e are laterally connected to a frame A in which a pair of front and rear groove members a are connected by a mesh member b at the bottom side as shown in FIGS. Thus, one turns the collar 11c down, the next turns the collar 11c up, and the next turns the collar 11c down again, so that the orientation of the collar 11c alternates. The brim portion 1 is inserted one after the other, and on the brim portion 11c on one side edge of the forming element e with the brim portion 11c down.
While the side edges of the main body of the forming element e with the upper side 1c overlap, the brim portion 11c of the one side edge of the forming element e with the brim portion 11c on the upper side overlaps the side of the main body of the forming element e with the brim portion 11c down. One filter F is arranged so as to overlap the side edge.

In use, the front edges or the rear edges of the frame A are alternately brought into contact with each other so as to form a V-shape or an inverted V-shape as described above. ,
A unit, which is housed in a duct with its periphery sealed and filters dirty air flowing through the duct
Is purified by traversing the forming element e.

In this case, in the present invention, the adjacent portion of each forming element e does not overlap the hardened flange portions 11c, but one of the hardened flange portions 11c is elastic and flexible of the adjacent forming element e. Since it overlaps with the main body, it has good adhesion and no odorous gas leaks from the overlapped portion. Also, with respect to the flow of air, the main body portion of the coarse element and the flat lower cover non-woven fabric portion 11b having a relatively high density alternately face each other, and the clogging state is not uniform. As the service life becomes longer.

[0013]

As described above, in the present invention, since the filter for deodorizing and purifying the indoor air with a bad odor is constituted as described above, the adjacent forming elements do not separate during use of the filter and are superposed. The parts can be securely adhered to each other, and the reliability as a filter can be improved without extending the risk of leaking offensive odor gas, and the life of the filter can be extended.
Since the molded elements are not integrally connected, they are easy to handle without increasing the size, and since the adjacent flange portion and a part of the element main body are overlapped, the whole becomes compact.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a forming element used in the present invention.

FIG. 2 is a perspective view of an embodiment of the present invention.

FIG. 3 is a front view as seen from the direction of line XX in FIG. 2;

FIG. 4 is a partial perspective view showing a use state of a conventional filter.

FIG. 5 is a perspective view of a brimless molding element.

FIG. 6 is a sectional view of a brim forming element.

FIG. 7 is a perspective view of an example of a conventional filter.

FIG. 8 is a perspective view of another example of a conventional filter.

FIG. 9 is a partial perspective view showing the degree of overlap of the brim forming element.

[Explanation of symbols]

11a Upper cover non-woven fabric 11b Lower cover non-woven fabric 11c Collar portion 12 Intermediate non-woven fabric 13 Deodorant 14 Ridge A Frame body a Groove member b Mesh material e Molding element F Filter

Claims (1)

(57) [Scope of request for utility model registration] 1. An intermediate nonwoven fabric and a granular deodorant layer are alternately layered, and the outside is covered with a dish-shaped upper cover nonwoven fabric and a plate-shaped lower cover nonwoven fabric with a brim. A plurality of formed elements are alternately inserted into a frame formed by connecting a pair of grooves with a mesh material, with one formed element with the brim down and the other formed with the brim up. Disposing the main body side edge of the other molding element on the collar of the one molding element, and disposing the collar of the other molding element on the main body side of the one molding element. A filter for deodorizing and purifying indoor air.