JPH0522739Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of a duct for air conditioning equipment installed in a building.

[Conventional technology]

When air cooled or heated by an air conditioner is supplied to multiple locations, it is necessary to divide the blown air. Conventionally, one means of dividing the air is to divide the air into two or more locations, for example, as shown in FIG. The suction ports of the branch ducts 22a and 22b are connected to the outlet of the main duct 21 so as to branch out from the main duct 21,
Alternatively, as shown in FIG. 6, an outlet is opened in the middle of the main duct 21 and a branch duct 22
are connected.

By the way, since the required amount of air to be supplied to each location differs depending on the heat load, etc., when trying to distribute and supply the required amount of air to each location, for example, in the case of the duct having the structure shown in FIG. As shown in Japanese Patent Application No. 62-141061 proposed in
4b may be arranged on the same rotational axis by sharing a drive motor (see Fig. 7), or in the duct having the structure shown in Fig. 6, the main duct 21 and the branch duct 22 may each have separate Movable dampers 25a, 25b driven by motors are provided independently, and the amount of air blown is changed by adjusting the angles of these dampers 24a, 24b, 25a, 25b (see FIG. 8).

[The problem that the idea attempts to solve]

There are many variations in the shape and structure of the building, for example, as shown in Figures 9 and 10, it consists of living rooms A, B, C, D, E, F, corridor G, machine room H, and stairs. In such a building, an air conditioner 27 is generally installed in a machine room H, a main duct 21 is arranged in the ceiling of a hallway G, and branch ducts 22 are branched into guest rooms A to F.

In this case, if the airflow distribution method shown in FIG.
Branch ducts will be lined up as many as the number of systems required to fill the width of the hallway, and in some cases, the branch ducts may not fit in the ceiling space within the width of the hallway.

In addition, with the air flow distribution means shown in Fig. 8,
Dampers 25a, 25 driven independently for each duct
b, therefore, the same number of drive motors as the number of ducts are required, which increases costs.

Furthermore, if the building has a steel structure, the 11th
As shown in the figure, the diameter of the branch duct passing through the beam 26 may be limited depending on the vertical width of the beam 26 that partitions the hallway G and the living room, for example, A. In such a case, multiple branch ducts 22, 22, and these are arranged in parallel, and a damper is installed independently for each branch duct 22, 22... As a result, not only the structure becomes complicated, but also the number of drive motors increases. However, only a few dampers, that is, branch ducts, are required, which increases the cost.

The purpose of this invention is to eliminate the disadvantages of the above conventional example,
When air that has been cooled or heated by an air conditioner is divided and supplied to multiple locations, the air can be divided and distributed at the required air volume ratio without increasing the number of ducts, making it easy to install in a limited space such as the ceiling of a hallway. It can be installed in
It is an object of the present invention to provide a duct for air conditioning equipment that requires fewer drive motors.

[Means to solve the problem]

In order to achieve the above object, the present invention divides the inside of the duct according to the air volume ratio, and provides a separator that blocks the tip of one of the divided passages to form a divided passage. The main idea is to form an air outlet in one of the divided passages.

[Effect]

According to the present invention, by providing a separator in one duct, a dividing path is formed in the duct, so branching ducts are unnecessary, and one duct can handle multiple airflows at the required air volume ratio without increasing the number of ducts. Air can be blown to specific areas.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an explanatory diagram showing an embodiment of the duct for air conditioning equipment of the present invention. In the figure, 1 indicates a main duct, and the main duct 1 includes ducts 1a, 1b, which are formed to have different diameters depending on the air volume ratio. 1c were sequentially connected.

In the figure, 2 indicates a separator disposed within the duct, for example 1a, and this separator 2 is attached to the tip end 2.
It is bent so that a is in contact with the inner wall surface of the duct 1a.

Such a separator 2 is arranged near the outlet in the duct 1a, and the inside of the duct 1a is divided into, for example, two parts according to the air volume ratio to form divided passages 3a and 3b, one of which is closed at the tip by the separator 2. dividing path 3b
An air outlet 4 to a living room or the like is formed in the area.

At the base ends of the split paths 3a and 3b, two dampers 5 for adjusting the air volume are connected on the same rotation axis.
a and 5b are arranged. 6 in the figure is damper 5a, 5b
The drive motor is shown.

Similarly to the duct 1a, the other duct 1b has divided passages 3a and 3b formed by a separator 2, and dampers 5a and 5 are provided at the base ends of the divided passages 3a and 3b.
b was installed.

When such a duct 1 is installed in the ceiling of a hallway of a building, only one duct 1 passes through the ceiling, so it can be easily accommodated in a limited space such as the ceiling of the hallway.

Further, since the dampers 5a and 5b for adjusting the air volume are arranged as two-unit type at the base ends of the divided passages 3a and 3b, that is, inside the duct 1, the drive motor 6
The number of items can be small.

If air is blown from the air conditioner installed in the machine room to the duct 1 installed in the ceiling of the hallway in this way, the heated or cooled air blown into the duct 1a will be adjusted to the required air volume ratio by the dampers 5a and 5b. The air sent to the split path 3b is sent to each room via the outlet 4, while the air sent to the split path 3a is further sent to the duct 1b. is supplied.

Then, in the duct 1b, in the same manner as in the duct 1a described above, the dampers 5a and 5b are
The air is distributed to the required air volume ratio and blown to the divided passages 3a and 3b, and the air sent to the divided passage 3b side is supplied to another living room etc. via the air outlet 4, and then sent to the divided passage 3a side. Air is further supplied to duct 1c.

Note that the formation of the separator 2 is based on the dividing paths 3a, 3.
The shape is not limited to that of the embodiment shown in FIG. 1 as long as it does not obstruct the flow of air to the tip part 2a, as shown in FIG. 2. It is also possible to further bend the tip so that it becomes parallel to the air outlet 4, or to bend the tip 2a into a curved shape so that the air flow becomes smoother as shown in FIG.

In addition, in order to reduce the wind speed in the ducts 1a, 1b after passing through the dampers 5a, 5b and to reduce the frictional resistance of the ducts 1a, 1b, the diameters of the ducts 1a, 1b in this part are widened, and the dividing path is 3a and 3b can also be formed to have a large diameter.

Furthermore, the duct of the present invention can be easily implemented by making simple improvements to the existing duct of a system that supplies a constant air volume. By installing a separator and a dual damper, it is possible to easily convert from a constant air flow supply system to a variable air flow distribution system according to the heat load of each room. And in this case,
Since it is not necessary to provide one damper with a motor in each branch duct 22 to each room, the desired purpose can be achieved at low cost.

[Effect of idea]

As described above, the duct for air conditioning equipment of the present invention reduces the number of ducts by forming a split path in one duct when supplying air cooled or heated by an air conditioner to multiple locations. Air can be distributed to various locations at the required air volume ratio without increasing the air volume, and furthermore, a dual-type damper can be used for adjusting the air volume, the number of drive motors can be reduced, and it can be easily installed at low cost.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the damper for air conditioning equipment of the present invention, Fig. 2 is an explanatory diagram of the main part showing the second embodiment of the same, Fig. 3 is an explanatory diagram of the main part showing the third embodiment of the same, FIG. 4 is an explanatory diagram of the main parts showing the fifth embodiment of the same as above, FIGS. 5 to 8 are explanatory diagrams showing the conventional example, and FIG.
FIG. 10 is an explanatory view showing an example of the arrangement of ducts, and FIG. 11 is a longitudinal sectional view of a main part showing an example of arrangement of ducts. 1... Main duct, 1a, 1b, 1c... Duct, 2... Separator, 2a... Tip, 3a,
3b... Divided path, 4... Air outlet, 5a, 5b...
Damper, 6...Motor, 21...Main duct, 2
2, 22a, 22b...branch duct, 23...separator, 24a, 24b, 25a, 25b...
Damper, 26...beam, 27...air conditioner.

Claims (1)

[Scope of utility model registration request] A separator is provided in the duct to divide the inside of the duct according to the air volume ratio, and a separator is provided that closes the tip of one of the divided passages to form a divided passage, and an air outlet is formed in one of the divided passages whose tip is closed. A duct for air conditioning equipment that is characterized by: