JP2996907B2 - Duct unit and its on-site assembly method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duct unit used for air conditioning equipment of a building and a method of assembling the duct unit on site.

[0002]

2. Description of the Related Art An air-conditioning ventilation system plays an important role in improving a comfortable environment for human beings or production and quality of various factories. One end of the cooling and heating medium transport equipment in this system is a duct. Duct is air that is cooled and heated by an air conditioner and supplied to the room (supply air)
Conversely, it serves as a transport path for air (retan air) returned from the room to the air conditioner or the like, or for air exchanged from the outside to the room or from the room to the outside for ventilation of the room.

[0003] A duct is manufactured by dividing into a plurality of single pipes of a generally transportable size based on a duct route designed for each building. Conventionally, a duct is mainly made of metal, and a zinc-plated plate, a stainless steel plate, an aluminum plate, or the like is bent and formed by a roll forming machine (forming machine), and a flange serving as a connection member is riveted to an end. It was produced by that. After being manufactured and transported to the site, the single pipe manufactured in this manner is assembled by successively hanging it on the ceiling while connecting the individual pipes based on the duct route.

[0004] At present, a flexible duct made of glass wool has been developed and used. The glass wool duct is manufactured by processing glass wool with an aggregate such as a piano wire and covering it with glass cloth or the like. Glass wool ducts have been increasingly used in recent years because they are lighter in weight, easier to process, transport and assemble than metal ducts, do not require heat insulation as air conditioning ducts, and have excellent sound absorption. There is a tendency.

[0005]

However, the conventional metallic duct has the following problems. a. Production efficiency is poor because it is made to order on site.
Since the material cost is high, the manufacturing cost is high. b. Due to its relatively heavy weight, it may not be suspended depending on the structure of the building, roof specifications, etc. Also, due to its heavy weight, there is a danger in assembling it on site such as hanging. c. When ducts and chambers are manufactured in factories and transported and transported to the site, individual single pipes are transported in a hollow state, so the volume efficiency when loading on trucks etc. is poor, and the transport cost increases . In addition, during transportation, individual ducts must be prevented from being deformed and packed so as not to interfere with the single tubes, so that waste materials such as cushioning materials are generated. d. Because it is made of metal material, it cannot be processed easily on site,
Once constructed, it is difficult to cope with future changes in outlets, inlets, changes in air volume, changes in duct routes, etc. e. In recent years, it has been difficult to secure duct workers with skilled skills, and it has been difficult to maintain duct quality.

The conventional glass wool duct has the following problems. a. Although it is commercialized as a duct, there is no chamber associated with it, and eventually the chamber had to be made of metal. b. In conventional glass wool ducts, the ducts are cut off at the site in accordance with the position of the air outlet and suction port,
Along with the generation of waste materials, for on-site cutting and processing,
Construction time and construction costs have increased. c. Since the length of the duct differs depending on the outlet, the air volume varies, and some air volume adjusting device such as a damper is required. d. In the past, the actual use length was compressed to about 1 m, stored in a cardboard box and transported to the site,
All the cardboard boxes used as packing materials were scrapped after being brought in.

The present invention has been made in view of the above circumstances, and provides a duct unit which is lightweight and easy to assemble, can increase the transportation efficiency, and does not generate waste materials, and a method of assembling the duct unit on site. Accordingly, it is an object of the present invention to simultaneously improve assembly workability, reduce manufacturing, construction, and transportation costs, and reduce waste materials.

[0008]

In order to achieve the above object, a duct unit according to the present invention has a stretchable glass wool duct, and the glass wool duct having a reduced length is accommodated through an opening. A box member having a wall formed with a duct connecting hole for connecting the glass wool duct; and a detachably provided at the opening of the box member, and attached to the opening after housing the glass wool duct. The cover member and the ends arranged at least outside the pair of opposing wall surfaces of the plurality of box members formed in a strip shape and aligned with the box member interposed therebetween are fixed by fixing means. And a gantry for collectively holding the plurality of box members accommodating the glass wool duct. In the duct unit configured as described above, a glass wool duct and a box member can be produced in a standardized size, the glass wool duct can be stored in the box member, and a plurality of box members can be packed at a time. Become like In addition, it is lighter than a metal duct. Further, the use of flexible glass wool ducts facilitates changing the duct path.

According to a first aspect of the present invention, there is provided a method for assembling a duct unit in a field, wherein a chamber is formed using a single box member or a plurality of connected box members. Then, by attaching the lid material removed from the opening to the inside of the box member, using the lid material as a reinforcing member of the chamber, and stretching the compressed glass wool duct to a predetermined length. The chamber is connected to the duct connection hole of the chamber, the gantry member is suspended and supported in parallel with a skeleton ceiling, and the chamber is placed on the gantry member, whereby the chamber is supported on the skeleton ceiling using the gantry member. It is characterized by doing. In the on-site assembly method of the duct unit, the gantry member used as a packing member during transportation is used as a gantry for supporting the chamber, and the lid member of the box member can be used as a reinforcing member of the chamber, and No waste material is generated.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a duct unit and a method of assembling the duct unit according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing a packing state of a duct unit according to the present invention, FIG. 2 is a perspective view of a box member and a glass wool duct housed in the box member, and FIG. 3 is a perspective view of a box member housing the glass wool duct. . The duct unit 1 according to the present invention includes a glass wool duct 3
And a box member 5 for storing the glass wool duct 3;
The main part is roughly divided into a gantry member 7 for holding a plurality of box members 5 collectively.

The glass wool duct 3 has, for example, a tubular shape, and a long one has a stretchable structure (for example, a bellows structure). The glass wool duct 3 of this example has a diameter D of 400 mm and a length L at the time of duct construction of 7600 m.
m and a length S in a contracted state of about 1000 mm are used.

On the other hand, the box member 5 is formed by forming a glass wool plate into a hexahedral box shape with a bone member 9 such as a piano wire. An opening 11 is formed in a pair of opposing surfaces of the box member 5. A lid 13 made of a glass wool plate and having the same shape as the opening 11 is attached to the opening 11. A notch 15 cut from one side toward the center of the plate surface is formed in the lid member 13, and the two lid members 13 are assembled in a state where the plate surfaces intersect by inserting the cuts 15 into each other. It is supposed to be.

On one wall surface of the box member 5, a plurality (three in this example) of punched portions 19 of the duct connection holes 17 are formed. The punching portion 19 is formed by making cuts at predetermined intervals on the wall surface in the circumferential direction. Therefore, by pressing the center of the punching portion 19 and punching the wall surface at the cut,
The box member 5 can be easily formed with a duct connection hole 17 at an arbitrary position.

The box member 5 of this embodiment has a frontage length W (opening 1).
1 is 1000)
の も の 1200 mm, depth length D of 800 mm, and height H of about 400-500 mm. Inside the box member 5, two glass wool ducts 3 described above are stored in a compressed state of 1000 mm. After the glass wool duct 3 is stored in the box member 5, the opening 11 is closed by the lid 13.

The glass wool duct 3 is stored in the opening 11
A plurality (four in this example) of the box members 5 whose are closed by the lid members 13 are collectively held by the gantry member 7.
The gantry member 7 is formed of, for example, a strip or L-angle. The gantry member 7 includes the aligned box members 5.
The upper and lower ends are opposed to each other, and the vertically opposed ends are connected by a stud bolt 23 and a nut 25 as fixing means.

That is, in the duct unit 1, a plurality of box members 5 accommodating the glass wool duct 3 are collectively held by the gantry member 7 and can be packed.
The duct unit 1 is loaded on a truck or the like in this state. The gantry member 7 is used as a gantry for supporting the box member 5 from the ceiling at the time of assembling the duct later.

A method of assembling the thus constructed duct unit 1 on site will be described. FIG. 4 is a perspective view of a box member to which a glass wool duct is connected, and FIG. 5 is a perspective view showing a chamber constituted by a plurality of box members. In the duct unit 1 in which the plurality of box members 5 are transported in a lump, the box members 5 become individual again by removing the gantry member 7 at the site. The box member 5 is a cover material 1 at a desired location.
After the 3 is removed, the glass wool duct 3 is taken out from the inside. The box member 5 from which the glass wool duct 3 has been taken out forms a chamber 31 by itself or by connecting the openings 11 of a plurality of things.

In this embodiment, as shown in FIG. 5, for example, by connecting three box members 5, the supply chamber 3 is connected.
1a and a urethane chamber 31b are respectively formed. The connection of the box members 5 is performed by connecting the bone members 9 and then closing the connection joint portion with, for example, a metal tape. At this time, the lid member 13 removed from the opening 11 is assembled in an intersecting state by inserting two sheets with the cuts 15 as shown in FIG. 4 and inserted into the opening 11 of the box member 5. As a result, it is used as a reinforcing material for the chamber 31. That is, the lid member 13 is used without being discarded.

The chamber 31 assembled as described above
Is supported on the frame ceiling by the gantry member 7 used during transportation. The support of the gantry member 7 is performed, for example, by screwing a stud bolt 23 used as a fixing means at the time of transportation to an anchor (not shown) installed on the skeleton ceiling. The supply chamber 31a and the urethane chamber 31b supported on the skeleton ceiling in this manner are connected to an air conditioner 33 such as a ceiling embedded package air conditioner.

The glass wool duct 3 taken out of the box member 5 is stretched to a predetermined length (in this example, 7600 mm). Stretched glass wool duct 3
Is used without cutting. The glass wool duct 3 having a predetermined length is connected to a duct connection hole 17 at a desired position formed by punching a punching portion 19. Finally, each glass wool duct 3
Is connected to an outlet (not shown) to complete the on-site assembly of the duct unit 1.

Therefore, the above-described duct unit 1 has the following effects. a. Since the glass wool duct 3 and the box member 5 can be factory-manufactured in a standardized size, the production efficiency is increased and the product cost can be significantly reduced. b. A plurality of glass wool ducts 3 are stored in the box member 5,
Further, since a plurality of box members 5 can be packed at a time, the volume efficiency at the time of truck loading is increased, a large number of duct units 1 can be carried with a small number of transportation times, and the transportation cost can be greatly reduced. c. Since it is lighter than a metal duct, it can be used for a building where a duct cannot be installed due to its weight (temporary building or the like). d. Since the flexible glass wool duct 3 is used, it is possible to easily cope with a change in the position of the outlet, a change in the duct route, and the like. e. By using the glass wool duct 3 having the same length without cutting, the pressure loss becomes uniform, and it is not necessary to provide an air volume adjusting device or the like for making the air volume uniform.

The above-described on-site duct unit assembling method has the following effects. a. Since the gantry member 7 used as a packing member during transportation is used as a gantry for supporting the frame ceiling of the chamber 31 and the lid member 13 of the box member 5 is used as a reinforcing member for the chamber 31, packing materials and waste materials are eliminated. Can be. b. Since the packing can be performed by using the constituent members of the duct and the chamber, for example, even when the glass wool duct 3 is used for other buildings, the glass wool duct 3 is contracted and then stored in the box member 5 again, and the gantry member 7 is moved. The box member 5 can be packed at a time by using it, and reuse can be performed very easily.

Although the above-described duct unit 1 uses the box member 5 made of glass wool, the box member 5 may use a metal chamber as it is. Also in this case, as described above, the glass wool duct 3 is housed in a metal chamber,
A plurality of metal chambers are packed together by the gantry member 7.

Further, in the above-described assembling method, one duct path is made to correspond to one glass wool duct 3. However, for example, when an air path having a cross-sectional area of 400 mm or more in diameter is required, the figure is As shown in FIG. 6, a terminal chamber 35 using a box member 5 is provided in addition to the supply chamber 31a, and a plurality of glass wool ducts 3 are connected between the terminal chambers 35, so that a large amount of air can be transferred. The configuration of such a duct route is, for example, the air conditioner 3
This is particularly effective when a plurality of air outlets 37 must be provided at a distance from the air outlet 3.

Further, since the above-mentioned duct unit 1 has a plurality of duct connection holes 17 and a flexible glass wool duct 3 as constituent elements, by utilizing these effectively, special duct paths which have not existed in the past can be obtained. It can be easily formed. That is, as shown in FIG.
Two supply holes 31a are formed in the supply chamber 31a connected to the glass wool duct 3, and both ends of the looped glass wool duct 3 are connected to the duct connection holes 17, respectively. Is provided. According to such a duct path, the air for two glass wool ducts described above can be supplied to one outlet 37, and an elbow-type connection duct is not used as in the case of a metal duct. Pressure loss can be reduced.

[0026]

As described above in detail, the duct unit according to the present invention has the following effects. a. Since glass wool ducts and box members can be factory-manufactured in standardized sizes, product costs can be significantly reduced. b. Since a plurality of glass wool ducts can be housed in a box member and a plurality of box members can be packed at once, a large number of duct units can be carried with a small number of transportation times, and the transportation cost can be greatly reduced. c. Because it is lighter in weight than metal ducts, it can be used in buildings where the ducts could not be installed due to weight. d. Since the flexible glass wool duct is used, it is possible to easily cope with a change in the duct route. e. By using the glass wool duct without cutting it,
The pressure loss becomes uniform, and there is no need to provide an air volume adjusting device or the like. Further, the duct unit on-site assembling method according to the present invention has the following effects. a. Since the gantry member used as a packing member during transportation is used as a gantry for the chamber, and the lid member of the box member is used as a reinforcing member for the chamber, packing materials and waste materials can be eliminated. b. Since the packing can be performed using the components of the duct and the chamber, the glass wool duct can be stored in the box member again when used for another building, and the box member can be packed using the gantry member. It can be used very easily.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a packing state of a duct unit according to the present invention.

FIG. 2 is a perspective view of a box member and a glass wool duct stored in the box member.

FIG. 3 is a perspective view of a box member containing a glass wool duct.

FIG. 4 is a perspective view of a box member to which a glass wool duct is connected.

FIG. 5 is a perspective view showing a chamber constituted by a plurality of box members.

FIG. 6 is an explanatory diagram in the case where one duct path is constituted by a plurality of glass wool ducts.

FIG. 7 is an explanatory diagram in the case of forming a loop-shaped duct path using the duct unit according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Duct unit 3 Glass wool duct 5 Box member 7 Stand member 11 Opening 13 Lid material 17 Duct connection hole 23 Stat bolt (Fixing means) 25 Nut (Fixing means) 31 Chamber

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F 13/02

Claims (2)

(57) [Claims] 1. A box in which a stretchable glass wool duct is accommodated through an opening, and the glass wool duct having a reduced length is formed in a wall surface of the duct, and a duct connection hole for connecting the glass wool duct is formed in the box. A member, a lid member detachably provided in the opening of the box member and attached to the opening after housing the glass wool duct, and at least one pair of the plurality of box members formed and aligned in a strip shape A frame member that collectively holds a plurality of the box members accommodating the glass wool duct by fixing ends of the plurality of box members that are arranged on the outside of the opposing wall surface and sandwiching the box member therebetween by fixing means. And a duct unit comprising: 2. The method for assembling a duct unit according to claim 1, wherein a chamber is formed using a single box member or a plurality of connected box members, and the chamber is removed from the opening. A lid material is mounted inside the box member to use the lid material as a reinforcing member for the chamber. The compressed glass wool duct is stretched to a predetermined length and then connected to the duct connection hole in the chamber. And mounting the chamber on the gantry member by suspending and supporting the gantry member in parallel with a skeleton ceiling, thereby supporting the chamber on the skeleton ceiling using the gantry member. Assembly method.