JP2005098590A - Draft chamber intake facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a draft chamber intake facility which uniformly supplies air to a draft chamber from the entire area of a front opening of the draft chamber to uniformize the exhaust distribution in the draft chamber. <P>SOLUTION: The draft chamber intake facility is configured such that a filter attachment frame 5 is arranged on a ceiling 2 of a room in which a draft chamber 1 is installed, in parallel to a front opening 1a of the draft chamber 1; that a filter 6 is stretched to over the filter attachment frame 5 to make a duct 3; that outside air is taken in the duct 3 with a blower 8; and that the outside air is supplied into the room via the filter 6. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a draft chamber intake system, and more particularly to an air conditioning system for outside air supplied to the draft chamber.

  The draft chamber is installed indoors, and the air in the draft chamber is exhausted to the outside through an exhaust duct. When the air in the draft chamber is exhausted, naturally the outside air corresponding to the exhaust amount is taken into the room by an air conditioner or the like, and the air is supplied to the draft chamber (see, for example, Patent Document 1).

JP-A-9-201540 (FIG. 1)

  By the way, as disclosed in Patent Document 1, since the air outlet of the air conditioner is opened in a part of the ceiling, an air flow is formed from the opening to the front opening of the draft chamber. Since this air flow is a laminar flow with a relatively small cross-sectional area, the distribution of air flowing from the front opening of the draft chamber is not uniform, and as a result, the distribution of the air exhausted in the draft chamber is uneven. There is a fear. In extreme cases, some air in the draft chamber remains there and is not exhausted.

  In view of the above circumstances, the present invention provides a draft chamber intake system in which the supply of air to the draft chamber is uniformly performed from the entire front opening of the draft chamber so that the exhaust distribution in the draft chamber is uniform. The purpose is to do.

  In the draft chamber intake system according to claim 1, a filter mounting frame is disposed in parallel to the front opening of the draft chamber on the ceiling of the room in which the draft chamber is installed, and a filter is provided so as to cover the filter mounting frame. A duct is formed by stretching, the outside air is taken into the duct by a blower, and the outside air is supplied into the room through a filter.

  In the draft chamber intake system according to claim 2, in the invention according to claim 1, the filter mounting frame is configured such that the wires are arranged in a lattice shape, and a cross section perpendicular to the longitudinal direction is formed in a C shape. It is characterized in that both sides of the shape are locked to the ceiling.

  In the draft chamber intake system of claim 3, in the invention of claim 2, the two rails whose cross section perpendicular to the longitudinal direction is formed in a U-shape are arranged, and the openings of the respective rails are directed in opposite directions. The filter mounting frame is disposed on the ceiling at intervals, and both sides of the filter mounting frame are respectively inserted into the openings so that the filter mounting frame is locked to the ceiling.

  According to a fourth aspect of the present invention, there is provided the draft chamber intake system according to the third aspect, wherein the filter is attached to the rail by winding the side portions of the filter around both sides of the filter mounting frame.

According to the first aspect of the present invention, air is supplied into the room from the entire filter surface of the duct, so that uniform air is sucked from the entire front opening of the draft chamber. Therefore, the air in the draft chamber is evenly exhausted from the entire interior.
Furthermore, since the outside air is supplied into the room through the filter, the room is kept clean.

  According to the second aspect of the present invention, the duct is constituted by the grid-like filter mounting frame and the filter covering the grid, so that the structure is simple and inexpensive, and the weight is reduced.

  According to the invention of claim 3, since the duct can be formed on the ceiling by engaging the C-shaped side ends of the filter mounting frame with the U-shaped rail, the filter mounting frame including the filter can be mounted and removed. This simplifies the duct replacement work.

  According to the invention of claim 4, since the filter is mounted by winding the end of the filter around the end of the filter mounting frame, no special parts for mounting the filter are required, and the filter can be easily mounted. .

Hereinafter, a draft chamber intake system according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a draft chamber intake system according to the present invention, FIG. 2 is an exploded perspective view of the duct in FIG. 1, and FIG. 3 is a sectional view of the duct.

  In the illustrated draft chamber intake system, as shown in FIG. 1, a plurality of draft chambers 1 are installed side by side, and at least the draft chamber 1 is disposed on the ceiling 2 located above the front opening 1 a of the draft chamber 1. A duct 3 having a length corresponding to the width of is installed.

  As shown in FIG. 2, the duct 3 includes two rails 4 installed parallel to the ceiling 2 with a gap therebetween, a filter mounting frame 5 for locking the ends 5a and 5a to the rail 4, and the filter A filter 6 attached to the attachment frame 5 and a cover 7 that closes the end of the duct 3 are configured.

  The rail 4 is installed on the ceiling 2 with screws, nails, adhesive or the like so that the cross section perpendicular to the longitudinal direction is U-shaped and the U-shaped openings 4a face in opposite directions. Is done.

  The filter mounting frame 5 is a steel wire assembled in a lattice shape by welding or the like, and has a substantially C-shaped cross section perpendicular to the longitudinal direction.

  The filter 6 is formed in a plate (band) shape with paper, synthetic paper or the like, and has appropriate rigidity.

  The cover 7 is formed by an end plate 7a having substantially the same shape as the end portion of the filter mounting frame 5, and a peripheral plate 7b disposed so as to surround the periphery of the end plate 7a. An opening 7c is defined by the edge of the.

  As shown in FIG. 3, the filter 6 has its side end portions 6a and 6a wound around the side end portions 5a and 5a of the filter mounting frame 5, and the side end portions 5a and 5a of the filter mounting frame 5 are directly connected to the rail. It is installed on the ceiling 2 by being engaged with the openings 4a and 4a of the fourth and fourth openings.

The ends of the filter 6 and the filter mounting frame 5 installed in this way are covered with a cover 7 and the opening of one end of the duct 3 is closed.
As shown in FIG. 1, the duct 3 is connected to a blower 8 at the other end opening and is opened to the outside through the blower 8.

  In the draft chamber equipment configured as described above, the outside air is taken into the duct 3 by the blower 8, and the outside air is supplied to the room from above the front opening 1 a of each draft chamber 1 through the filter 6. .

  As mentioned above, although one embodiment of the draft chamber intake system according to the present invention has been described, the present invention is not limited to the above-described embodiment, and the technical idea of the present invention described in the scope of the claims is not limited thereto. It goes without saying that various modifications and changes can be made within the scope.

It is the perspective view which showed an example of the draft chamber intake equipment which concerns on this invention. It is a disassembled perspective view of the duct in FIG. It is sectional drawing of the duct in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Draft chamber 1a Front opening 2 Ceiling 3 Air duct 4 Rail 4a Opening 5 Filter mounting frame 5a Side edge 6 Filter 6a Side edge 7 Cover 7a End plate 7b Peripheral plate 7c Opening 8 Blower

Claims (4)

A filter mounting frame is disposed on the ceiling of the room where the draft chamber is installed in parallel with the front opening of the draft chamber, and a duct is formed by extending a filter so as to cover the filter mounting frame. A draft chamber intake system characterized in that outside air is taken into the duct and supplied to the room through a filter. The filter mounting frame is characterized in that wires are arranged in a lattice shape, a cross section perpendicular to the longitudinal direction is formed in a C shape, and both sides of the C shape are locked to a ceiling. 2. A draft chamber intake system according to item 1. Two rails each having a U-shaped cross section perpendicular to the longitudinal direction are arranged on the ceiling with their rails facing in opposite directions and spaced apart from each other. 3. The draft chamber intake system according to claim 2, wherein both sides of the mounting frame are respectively fitted and the filter mounting frame is locked to the ceiling. The draft chamber intake system according to claim 3, wherein the filter is attached to the rail by winding a side portion of the filter around both sides of the filter attachment frame.

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