JPS61205747A - Device and method of distributing amount of ventilating air - Google Patents

Abstract

PURPOSE:To permit to adjust the amount of ventilating air for a plurality of branch ducts simultaneously by a method wherein the pivoting axle at the end of a guide vane, arranged at the end side of a main duct, is provided so as to be coinciding on or parallel to the borderline between the branch ducts and a driving member, protruded to the outside of the main duct, is provided on the other end of the guide vane, describing an arced locus. CONSTITUTION:The guide vane 4, provided in the blow-off port of the main duct 1, is provided with a pivotal axle 5 at one end and with a trochoidally moving rod 8, formed with screw threads at least both ends thereof, protrudingly at the other end thereof while the pivotal axle 5 is provided at the branching section 7 of the branch ducts 2, 3 in the connecting part 6 of the main duct 1 and the branch ducts 2, 3 so as to be coinciding with or parallel to the mutual borderline of the branch ducts 2, 3 and the trochoidally moving rod 8 is positioned at the suction port side of the main duct 1. An arced long holes 9 are formed on the front and rear surfaces of the main duct 1 so as to coincide with the locus of the trochoidally moving rod 8 and the ends of the rod 8 are projected to the outside of the duct through the long holes 9 while the protruded sections 8a are screwed with clamping fitments 10 such as butterfly screws or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus and method for distributing the amount of air blown from a main duct to branch ducts in air conditioning duct equipment installed in a building.

[Conventional technology]

Inside the building, branch ducts are branched off from the main duct connected to the air conditioning equipment, and branch ducts are opened to each room.

By the way, each room has a different indoor temperature required depending on its purpose or as a result of different conditions such as size, direction of the room, number of people in the room, etc.

Therefore, in the past, a damper was installed inside each branch duct to each room, and by adjusting the opening degree of the damper, the amount of air sent from the main duct was adjusted to maintain the indoor temperature at a desired temperature.

[Problem that the invention seeks to solve]

However, with such conventional devices and methods, it is necessary to provide a damper for each branch duct, which requires time and effort to install, and the adjustment of the air flow rate must be adjusted for each branch duct one by one. It was very time consuming.

In addition, adjusting the air volume of one branch duct has an effect on other branch ducts, making it difficult to adjust the entire system at once, including adjusting the air volume of many other branch ducts.

An object of the present invention is to provide an air flow distribution device that eliminates the disadvantages of the conventional example, is easy to install, and can simultaneously adjust the air flow from a main duct to a plurality of branch ducts, making it easy to adjust the air flow. and to provide a method.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention provides a rotating shaft of the end of a guide vane arranged at the end of the main duct such that the main duct and a plurality of branch ducts coincide with or are parallel to each other's boundary line at the joint between the main duct and a plurality of branch ducts. A drive part is provided at the other end of the guide vane that draws an arcuate trajectory that protrudes outside the main duct, and when blowing air from the main duct to each branch duct, the guide vane is moved within the main duct around the rotation axis. The gist is that if the cross-section of the air passage to one branch duct is narrowed or enlarged by vibrating and changing the partition angle, the cross-section of the air passage to the other branch duct will change inversely proportionally. It is something.

[Effect]

According to the present invention, when blowing air from the main duct to each branch duct, by vibrating the guide vane, the air passage of one branch duct is narrowed, and at the same time, the air passage of the other branch duct is expanded in inverse proportion to this. Therefore, by simply changing the partition angle of one guide vane, the air volume to the two branch ducts can be changed at the same time.Also, since this operation can be performed outside the duct, the air volume can be adjusted by appropriately combining these types of devices in several stages. Adjustments can be made easily.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a front view showing a first embodiment of the airflow distribution device of the present invention, FIG. 2 is a longitudinal sectional front view of the same, and FIG. 3 is a side view of the same. A branch duct is shown in which each suction port is opened at the outlet of the main duct 1.

In the figure, 4 indicates a guide vane provided at the outlet of the main duct 1, and the guide vane 4 has a rotating shaft 5 attached to one end.
A vibrating rod 8 with at least both ends threaded is protruded from the other end, and this rotating shaft 5 is connected to the boundary between the branch ducts 2 and 3 at the connecting part 6 between the main duct 1 and the branch duct 2.3. The vibrating rod 8 is provided on the branch portion 7 of the branch ducts 2 and 3 so as to match or be parallel to each other on a line, and the vibration rod 8 is located on the suction port side of the main duct 1.

An arc-shaped elongated hole 9 is formed on the front and back sides of the main duct 1 so as to match the locus of movement of the vibrating rod 8, and the end of the vibrating rod 8 protrudes outside from this elongated hole 9, and the protruding portion 8a
A fastening fitting 10 such as a wing screw is screwed onto the screw.

In the figure, reference numeral 11 indicates a closing zone of the elongated hole 9, which is provided on the inner surface of the main duct 1 so as to meet from both sides along the longitudinal direction of the elongated hole 9, and is made of an elastic material such as rubber. It is.

Next, a method of adjusting the amount of air blown from the main duct to the branch duct using the device of the present invention will be explained. When the vibration rod 8 of the guide vane 4 is located at the center of the main duct 1, the guide vane 4 is on the extension line of the boundary line between the branch ducts 2 and 3, and the inside of the main duct 1 is partitioned at the center by the guide vane 4 at the air outlet, so the cross sections of the air passages to the branch ducts 2 and 3 are formed equally; The amount of air sent to each branch duct 2.3 is equal.

Now, reduce the amount of air blown to branch duct 2,
To increase the amount of air blown to, loosen the clamp 10 and move the vibrating rod 8 toward the branch duct 2. The vibrating rod 8 moves within the elongated hole 9, and the guide vane 4 moves toward the rotation shaft 5. The main duct 1 vibrates around the center and the partition angle changes. After the vibrating rod 8 has been moved to the desired position, the clamping fitting 10 is tightened again to fix the guide vane 4.

In this state, the guide vane 4 is installed obliquely with respect to the air path direction within the main duct 1, and the cross section of the air path toward one branch duct 2 is narrowed, and at the same time, the cross section toward the other branch duct 3 is inversely proportional to this. The cross section of the air passage has expanded, and each branch duct 2.3
The distribution ratio of the amount of air blown from the main duct 1 to the main duct 1 changes.

The above has described an example in which the position of the guide vane is adjusted manually, but it is also possible to do this automatically, and as a second embodiment, as shown in FIGS. A pinion 12 is attached to the protruding end of the main duct 1,
The pinion 13 is engaged with a rack 13 provided outside the main duct 1 along the elongated hole 9, and the drive shaft of the pinion 12 is connected to the rotating shaft of the Modutrol motor 14.

When the modutrol motor 14 is thus rotated, the pinion 12 moves along the rack 13, and the partition angle of the guide vane 4 is automatically changed.

When changing the partition angle of the guide vane 4 automatically in this way, it is also possible to automatically adjust it according to the room temperature.
As shown in FIG. 6, room temperature detectors 16a and 16b are provided in each room 15a and 15b.
, 16b may be introduced into a temperature difference detector 17, and a deviation signal from the temperature difference detector 17 may be introduced into the modutrol motor 14 via an amplifier 18. In this case, the room temperature detector 16a.

The current room temperature detected in 16b and each room 15a, 1
The temperature difference detector 17 compares the proper room temperature of 5b with the temperature difference detector 17, and the difference temperature is outputted as a deviation signal to the modutrol motor 14 via the amplifier 18, and the motor 14 operates as directed by the deviation signal. The pinion 12 moves along the rack 13 and the partition angle of the guide vane 4 is automatically changed.

In addition, as shown in FIG. 7, ducts 2a, 3a, 2b, and 3b are further branched from the branch duct 2.3, and the air flow distribution device of the present invention is connected to these ducts 2.3.2a, 3a, 2.
b, all joints 5a of 3b.

If installed in 6b, 6c, all rooms 15c, 15d, 15
The amount of air blown to e and 15f can be adjusted at the same time, making it easy to control the room temperature.

〔Effect of the invention〕

As described above, the air flow distribution device and method of the present invention,
Since there is no need to install multiple airflow volume adjustment devices for each branch duct, installation work is simple, and the airflow volume adjustment work for multiple ducts can be done simultaneously, and this work can be done outside the duct. It is a simple operation.

[Brief explanation of drawings]

FIG. 1 is a front view showing a first embodiment of the airflow distribution device of the present invention, FIG. 2 is a longitudinal sectional front view of the same, and FIG. 3 is a side view of the same.
FIG. 4 is a front view showing the second embodiment, FIG. 5 is a side view of the same as above, FIG. 6 is an explanatory diagram when the device of the present invention is automatically controlled, and FIG. 7 is a front view of the second embodiment. FIG. 2 is an explanatory diagram of a case in which air blowing to a plurality of rooms is controlled simultaneously by installing the air conditioner. 1... Main duct

Claims (2)

[Claims] (1) At the joint between the main duct and a plurality of branch ducts, provide a rotation axis of the guide vane end that is arranged on the main duct end side so as to coincide with or be parallel to the boundary line between the branch ducts,
An air flow distribution device characterized in that a drive part that protrudes outside a main duct is provided at the other end of a guide vane that draws an arcuate trajectory. (2) When blowing air from the main duct to each branch duct, the guide vane is vibrated within the main duct around the boundary between the branch ducts to change the partition angle, thereby narrowing the cross section of the air passage to one branch duct. , or an air flow distribution method characterized in that when it is increased, the cross section of the air passage to the other branch duct is simultaneously changed in inverse proportion to this.