JPH0216218Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an air conditioning vertical duct in central air conditioning equipment.

[Conventional technology]

As conventional air conditioning equipment, single duct type central air conditioning equipment is known, which sends air from the air conditioner to each room through a single duct, and is often used in low-rise store buildings such as supermarkets. This central air conditioning system is also used.

[The problem that the idea aims to solve]

However, in the case of the duct system of such conventional central air conditioning equipment, after the cold or hot air from the air conditioner is sent to each floor through vertical ducts, the air is sent to the air outlet through horizontal ducts. It has a structure that
A horizontal duct consisting of a main duct and branch pipes branching from the main duct is installed in the ceiling space.
There was a problem in that a large amount of space was required in the ceiling to accommodate the horizontal duct, and the indoor ceiling height was not only reduced by the presence of the horizontal duct, but also that a great deal of labor was required for on-site construction. In particular, in the case of low-rise store buildings such as supermarkets, where the number of floors is small (2 or 3) but each floor area is very large, it is necessary to reduce the building floor height to the necessary minimum and simplify the structure of the building. Due to the strong demand for a duct system that does not use horizontal ducts, a duct system was desired.

[Means to solve the problem]

The present invention was developed in view of such conventional technical problems, and its configuration is for air conditioning equipment installed in multi-story buildings that have square columns connecting the bottom floor and the roof floor. A vertical duct that connects a duct that also serves as a sleeve installed on the floor and an air outlet unit installed along the ceiling on the lower floor of the floor and equipped with air outlets in two or more directions, except for the lowest floor. The air outlet unit and the sleeve-combined duct are connected by an indoor duct to form an air supply vertical duct, and the sleeve-combined duct, the air outlet unit, and the indoor duct are respectively arranged along two sides of the prism, This is an air conditioning vertical duct in which the uppermost sleeve duct of the air supply vertical duct is connected to the air inlet of an air conditioner installed on the roof floor. Further, the sleeve duct can be provided with an in-ceiling duct placed in the ceiling, and the sleeve duct and the air outlet unit can be connected via the in-ceiling duct.

[Effect]

Therefore, part of the conditioned air supplied from the air inlet of the air conditioner installed on the roof floor to the uppermost sleeve duct is supplied indoors from the outlet of the uppermost outlet unit, and the remaining The conditioned air is supplied to the outlet unit on the lower floor through the indoor duct and the lower sleeve duct, and is then sent to each floor by the air supply vertical duct arranged along the two sides of the square column. Conditioned air is supplied.
Note that the return air reaches the return air port of the air conditioner through, for example, a return air duct. In this way, each floor can be air-conditioned without particularly requiring space in the ceiling. Moreover, the embodiment is a case where the present invention is applied to a building provided with a suspended ceiling, and the sleeve-cum-sleeve duct is extended by the height within the ceiling by the in-ceiling duct.

〔Example〕

Hereinafter, embodiments of the air conditioning vertical duct according to the present invention will be specifically described with reference to the drawings.

First, the air supply vertical duct will be explained. Reference numeral 1 in FIG. 1 is a sleeve-duty duct having a dogleg-shaped ventilation passage, and except for the upper end of the sleeve-duty duct 1 at the top, the upper end is connected to an indoor duct 4 on the upper floor, which will be described later. It is connected to the ceiling duct 2. The reason for the dogleg shape is that it is installed on two sides of the column between the beams, straddling the ridge of the column. At the lower end of each sleeve/duct 1, an inward flange 1a having a plurality of bolt holes is formed. This sleeve-cum-duct 1 is installed in advance with its inner surfaces 1b, 1b along the two sides of the square column 10 that serves as a support for the building when floor concrete is poured, and is embedded in the floor in a penetrating state. There is.
Thus, the sleeve-cum-duct 1 also functions as a frame when forming an opening in a floor (slab). In addition, the square pillar 10 serving as a support of the building connects the floor of the lowest floor and the floor of the roof floor in a multi-story building.

Reference numeral 2 shown in FIG. 2 is an in-ceiling duct,
It is installed in the ceiling of a building with a suspended ceiling, that is, between the floor (slab) of the upper floor and the ceiling, and has the role of extending the sleeve-cum-duct 1 by the height of the ceiling in the ceiling. However, the duct 1 is connected to an air outlet unit 3, which will be described later. An inward flange 2a having a plurality of bolt holes is formed at the upper end of the ceiling duct 2, and is connected to the inward flange 1a of the sleeve-cum-duct 1 by fastening bolts. A plurality of brackets 2b having screw holes are fixed to the outer periphery of the ceiling duct 2, and an air outlet unit 3, which will be described later, is connected to the screw holes by screwing long screws into the brackets 2b. Note that a smoke detector interlocking damper (not shown) is normally provided in the ceiling duct 2.

Reference numeral 3 shown in FIG. 3A is an air outlet unit disposed along the lower surface of the ceiling, which connects the in-ceiling duct 2 and an indoor duct 4, which will be described later. The air outlet unit 3 has a doglegged box shape, with a doglegged opening formed at the center of its upper and lower surfaces, a folded edge 3a provided at the periphery of the upper opening, and a downward U-shaped opening at the periphery of the lower opening. An insertion port 3b is provided. And on the outside wall of the dogleg shape, there is an air outlet 3c with adjustable air volume and blowing direction.
are provided appropriately, and the conditioned air is supplied through this outlet 3.
It is blown out in two directions from c and supplied into the room. Further, an appropriate number of screw holes 3d or locking holes 3e are formed on the upper surface of the air outlet unit 3, and the air outlet unit 3 can be installed by using the screw holes 3d and the screw holes of the bracket 2b of the in-ceiling duct. It can be fixed with screws, or it can be suspended from the floor of the upper floor using a turnbuckle or the like using the locking hole 3e.

Note that the lower opening of the air outlet unit 3 used on the lowest floor is closed or used without providing a lower opening. In addition, when increasing the number of air outlets 3c and supplying conditioned air in directions other than the two directions, the end of the air outlet unit 3 is extended to extend the inner surface along the prism 10, as shown in FIG. After providing an opening 3f in and attaching the outlet unit 3 to the prism 10,
A box 3' having an air outlet 3c is connected to this opening 3f.

4 shown in FIGS. 4 and 5 is the air outlet unit 3.
This is an indoor duct that connects the lower end of the W
It is constructed by combining a letter-shaped inner plate 5 and a dogleg-shaped outer plate 6. The inner plate 5 has a central bent portion 5
Bracket receivers 5b, 5b fixed to a, 5a
is attached by being hooked to brackets 10b, 10b fixed to two side surfaces 10a, 10a of the square column 10. Each 5c is a reinforcing member made of iron plate,
Its both ends are welded and fixed to the inner circumferential corners of the inner plate 5. Further, 5d is a heat insulating plate attached to the inner surface of the inner plate 5, and is made of a noncombustible material such as glass wool. Similarly to the inner plate 5, reinforcing members 6a are appropriately welded and fixed on the inner surface of the outer plate 6, and a heat insulating plate 6b is attached, and bent edges for connecting with the inner plate 5 are provided on both sides. It has 6c and 6c. A downward U-shaped insertion opening is formed at the lower end periphery of the inner plate 5 and the outer plate 6, respectively.

Next, the assembly procedure of the air supply vertical duct will be explained.

(1) The in-ceiling duct 2 is bolted to each sleeve duct 1 installed in advance on the floor of each floor.

(2) Screw the air outlet unit 3 to the bracket 2b of the ceiling duct 2.

(3) Next, insert the upper end of the inner plate 5 into the inner side of the outlet 3b of the outlet unit, and engage the lower end of the inner plate 5 with the inner side of the upper edge of the lower sleeve-cum-duct 1. While aligning them, the bracket receiver 5b is engaged with the prismatic bracket 10b. In this way, the inner plate 5 is attached to the prism 10, and its upper and lower ends are connected to the outlet unit 3 and the sleeve-cum-duct 1. Then, the outer plate 6 is inserted on both sides with its upper end inserted into the outer side of the outlet 3b of the outlet unit, and its lower end inserted into the outer side of the upper edge of the lower sleeve-cum-duct 1. The bent edges 6c, 6c of the inner plate 5 are integrally connected to both side ends 5e of the inner plate 5 with screws or the like to form the indoor duct 4.

In addition, in buildings where the lower surface of the floor of the upper floor is used as the ceiling of the lower floor and the ceiling board is omitted, the in-ceiling duct 2 is omitted and the air outlet unit 3 is replaced with the sleeve-duty duct 1.
Connect directly to. In that case, a bolt hole corresponding to the bolt hole of the inward flange 1a of the sleeve/duct 1 is provided around the upper opening of the air outlet unit 3 arranged along the ceiling surface, instead of the folded edge 3a and the screw hole 3d. , the outlet unit 3 is directly connected to the sleeve/duct 1 with bolts.

Next, the return air duct will be explained.

The return air vertical duct is constructed by connecting an in-ceiling duct 2 to the lower end of the sleeve duct 1 as necessary, and connecting an indoor duct 4 to the lower end of this in-ceiling duct 2, and the air outlet unit 3 is omitted. be done. The sleeve-cum-return duct 1 is already installed on the floor of each floor along two sides of the square column 10, avoiding interference with the above-mentioned air supply vertical duct.

The indoor duct 4 for return air is different from the indoor duct 4 for supply air in that its longitudinal length is the same as the outlet unit 3.
It is different in that it is longer due to the omission of , and a return air opening opening into the room is formed at its lower end.
To connect the indoor duct 4 and the ceiling duct 2 or the sleeve duct 1, a downward U-shaped insertion port for connecting the indoor duct 4 is formed at the lower edge of the ceiling duct 2, and the above-mentioned air supply It is done in the same way as (3) of the vertical duct assembly procedure. That is, the upper ends of the inner plate 5 and the outer plate 6 are inserted into the lower end of the in-ceiling duct 2, and the lower ends of the inner plate 5 and the outer plate 6 are inserted into the upper end of the sleeve duct 1, and the inner plate 5 is inserted into the lower end of the inner plate 5 and the outer plate 6.
is hung on the prism 10, and both plates 5 and 6 are assembled with screws or the like to form the indoor duct 4 for return air. However, the lower end of the return air indoor duct 4 installed on the lowest floor is closed.

Such air conditioning vertical ducts for supply air or return air are installed in each duct 1, depending on the load range of each duct.
2, 4 and the outlet unit 3 are modularized and distributed and arranged on each prism 10. And the uppermost sleeve duct 1 of the air supply vertical duct
is connected to the air inlet of an air conditioner (not shown) installed on the roof floor, and the sleeve-duty duct 1 at the top of the return air vertical duct is connected to the return air inlet of the air conditioner.
Here, the air conditioner is an air-cooled heat pump unit, a combination unit of an air-cooled or water-cooled package, and a heating coil, or the like.

Next, the effect will be explained.

The conditioned air supplied from the air inlet of the air conditioner installed on the roof floor to the sleeve-cum-duct 1 at the top of the air supply duct is transferred to the air outlet unit 3 at the top.
A part of the conditioned air is sent into the room from the air outlet 3c, and the remaining conditioned air is sent to the lower air outlet unit 3 via the indoor duct 4 and the lower sleeve duct 1.
In this way, the two sides 1 of the prism 10
Conditioned air is supplied to each floor by air supply vertical ducts arranged along 0a and 10a. Further, the return air is sucked in from the return air port of the indoor duct 4 for return air, and is sent to the return air port of the air conditioner via the upper ceiling duct 2 and the upper sleeve duct 1. .

Note that the square pillar 10 provided with the return air duct is not necessarily limited to the square pillar 10 provided with the supply air duct, and in buildings where ceiling panels are omitted, the indoor duct 4 for return air may be used. is directly connected to the sleeve/duct 1.

[Effect of idea]

As understood from the above explanation, the air conditioning vertical duct according to the present invention provides the following effects.

(b) Since no horizontal ducts are used, there is no need for space in the ceiling for central air conditioning equipment, and there is no need for a suspended ceiling for air conditioning equipment.
The structure of the building can be simplified and the floor height of the building can be lowered. Furthermore, even if a suspended ceiling is installed for electrical wiring or aesthetic reasons, it is sufficient to install a vertical in-ceiling duct within the ceiling, and a suspended ceiling may be used to accommodate horizontal ducts. The building floor height can be lowered compared to the previous case.

Moreover, since no indoor ducts are installed on the lowest floor, the number of floors is small and the building floor height can be kept to the minimum required, making it suitable for low-rise store buildings such as supermarkets where ceiling space is limited. be.

(b) The air supply vertical duct consists of a sleeve duct (in-ceiling duct), an air outlet unit, and an indoor duct, and since these components can be made into a unit and manufactured in a factory, assembly on site is not possible. This makes construction work much more efficient.

(c) The air supply vertical duct is composed of a sleeve duct (in-ceiling duct), an air outlet unit, and an indoor duct as one unit, and the number of units can be increased or decreased to accommodate differences in the number of building floors. Since differences in area can be accommodated by increasing or decreasing the number of ducts installed, it is easy to design and construct ducts in central air conditioning equipment.

(d) Since horizontal ducts are not used, there is virtually no need for piping work in the ceiling, and maintenance as well as duct construction work is easy.

(e) Since the air supply vertical duct is installed along the two sides of the square column, the air conditioning duct can be arranged compactly, and since the appearance is good, modification work around the duct is easy.

(F) The sleeve-cum-duct also functions as a frame when forming an opening in a floor slab, so compared to the case where the frame and duct are made of separate members, it is possible to reduce the number of parts. First, construction work is efficient.

(g) The air outlet unit and the indoor duct are arranged along the two sides of the prism, and
Since it can be supported on the sides, the support is relatively firm.

(h) Since the outlet unit is constructed separately from the sleeve duct or indoor duct,
By selecting an air outlet unit with an air outlet suitable for the room, you can set the air outlet direction as you like.In addition, you can set the air outlet area larger than the connected indoor ducts, etc. to distribute conditioned air over a wider area. It can be blown out. This makes it possible to improve the indoor air conditioning environment.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a duct that also serves as a sleeve used in an air conditioning vertical duct according to the present invention, Fig. 2 is a perspective view of an in-ceiling duct, and Fig. 3 A and B are perspective views of an air outlet unit. FIG. 4 is a perspective view of the indoor duct, and FIG. 5 is a sectional view showing how the indoor duct is attached to a prism. 1: Sleeve duct, 2: Ceiling duct,
3: Air outlet unit, 3c: Air outlet, 3': Box,
4: Indoor duct, 5: Inner board, 6: Outer board, 1
0: prismatic.

Claims (1)

[Scope of claim for utility model registration] (1) An air-conditioning vertical duct installed in a multi-story building with a corner column connecting the bottom floor and the roof floor, which doubles as a sleeve installed on the floor. The duct is connected to an air outlet unit provided along the ceiling on the lower floor of the floor and has air outlets in two or more directions, and the air outlet unit and the sleeve-duty duct are connected to the indoor duct except for the lowest floor. The sleeve-combined duct, the air outlet unit, and the indoor duct are arranged along two sides of the square column, and the uppermost sleeve of the air supply vertical duct is connected to the air supply vertical duct. An air conditioning vertical duct characterized by a dual-purpose duct connected to the air inlet of an air conditioner installed on the roof floor. (2) The air conditioning vertical duct according to claim 1, wherein the sleeve-cum-duty duct includes an in-ceiling duct arranged in the ceiling and is connected to an air outlet unit via the in-ceiling duct.