JPS60117040A - Ventilating device - Google Patents

Abstract

PURPOSE:To provide the titled device in which height of floor of the building is not subjected to limitation and no special motive power source is required to be provided for exhausting air by connecting a blower to a supply air chamber by means of a small diameter blast pipe, communicating the supply air chamber with the interior of the room by means of a supply air duct, and communicating the interior of the room with a vent duct thereby to exhaust air within the room. CONSTITUTION:The ventilating device 1 delivers by pressure external air A of high air flow speed and high pressures which has been compressed by the blower 2. The blast pipe 3 of a small diameter and a pipe duct shape is convenient. Purified air A which has been delivered by pressure rotates a rotary vane F1, expanding and being pressure reduced, and is blown out into the room R through the supply air duct 5. On the other hand, the rotation of the rotation vane F1 is transmitted to an exhaust fan F2 in an exhaust chamber 7 through a transmission shaft F3, and contaminated air within the room R passes through the vent duct 6 and is gradually exhausted through an exhaust duct 8 to the outside.

Description

[Detailed description of the invention] The present invention uses high wind speed supplied by a blower.

It relates to a ventilation system that simultaneously performs air supply and exhaust using high-pressure outside air.More specifically, it connects an air blower and an air supply room with a blow pipe, and further communicates the air supply room and the room with an air supply duct. This invention relates to a ventilation system in which the room and the exhaust chamber are connected through a return air duct, and the exhaust chamber is provided with an air outlet.

Conventionally used ventilation systems have large supply ducts, which requires a large ceiling space to accommodate them, which limits the floor height of the building itself. In other words, the floor height had to be set in consideration of the height of the supply duct.

Furthermore, in order to supply outside air, a power source for ventilation had to be placed in the indoor cylinder that required ventilation. Therefore, ventilation equipment occupies a large proportion of the building, and also requires a lot of running cost.

The ventilation system of the present invention has been developed in view of the above-mentioned problems, and uses a blower to blow high-speed, high-pressure outside air into the room through a small-diameter air pipe, thereby limiting the floor height of the building. The rotor blades in the air supply chamber are rotated by the high wind speed and high pressure outside air, and the rotation of the rotor blades is transmitted to the exhaust fan installed in the exhaust chamber. It allows air to be exhausted outside.

Hereinafter, the ventilation device of the present invention will be explained in detail based on the drawings.

FIG. 1 is a schematic diagram of a ventilation device according to the invention.

This ventilation system 1 compresses clean outside air A using a multi-blade or turbo-type blower 2, and force-feeds the compressed outside air at high wind speed and high pressure to an air supply chamber 4 through a blow pipe 3.

It is convenient for the blower pipe 3 to be in the form of a small diameter pipe duct (to enhance the compression effect of the blower 2 and forcefully feed the air to the air supply chamber 4).

The blower 2, the blow pipe 3, and the air supply chamber 4 are each connected in a sealed state as shown in FIG. That is, in the air outlet 21 of the air Ja2, the air pipe port 31 of the air pipe 3 is closely fitted, while in the air supply chamber 4, the closing wall 41 of the air supply chamber 4 and the receiving pipe port 32 of the air pipe 3 are closely fitted. They are also closely fitted. As a result, the high velocity, high pressure outside air compressed from the blower 2 is forcedly sent from the receiving pipe L] 32 to the air supply chamber 4 via the blow pipe 3 without leaking to the outside.

The clean air pressure-fed into the air supply chamber 4 as described above is expanded, decompressed, and blown into the room H through the air supply duct 5. At this time, when the air outlet R1 is on the ceiling, an anemostat type is usually used, and when it is attached to a wall, a universal type is used to enhance the diffusion effect in the room R. On the other hand, indoor H
Suction port R for discharging contaminated indoor air to other locations
2 is provided. An exhaust chamber 7 is provided via a return air duct 6 in connection with this suction port R2. The exhaust chamber 7 is configured to discharge contaminated indoor air sucked in from the suction port R2 to the outside through the outdoor outlet 81 of the exhaust duct 8. This exhaust chamber 7 may be provided integrally with the air supply chamber 4 adjacent to it, or may be provided separately and isolated. However, the intake pipe port 32 of the air supply chamber 4
Since the exhaust fan F2 is arranged to be rotated by the transmission axis F3 of the rotor blade F1 provided nearby, the transmission axis F
It is sufficient that the rotation by JJI-MJF2 is smoothly transmitted to JJI-MJF2.

- The air supply chamber 4 has the function of expanding and reducing the pressure of the compressed high-pressure, high-speed outside air A all at once. Therefore, it is formed as a box with a relatively larger cross-sectional area than the cross-sectional area of the blower pipe 3 and a larger volume.

In addition, high wind speed and high pressure outside air A is directly introduced into the air supply chamber 4/, 1-
When the air is sent, it hits the inner wall of the air supply chamber 4 and generates noise, and also the noise blown out to the rotor F1 and the rotation noise t of the rotor F1.
'1 magnitude is produced. In order to absorb these noises, a sound absorbing material 42 is attached to the inner wall surface of the air supply chamber 4.

J. The operation of the ventilation system constructed as described above will be explained in more detail.

First, fresh air 7'11 outside air A is compressed to high pressure by the blower 2 and is forced into the blower pipe 3. As described above, this blower pipe 3 is a pipe body with an extremely small diameter, so that the clean outside air A is further compressed here. The compressed outside air A that has passed through the blast pipe 3 is blown out vigorously from the receiving pipe port 32 in the air supply chamber 4, and the blown energy is applied to the rotary blade F1 provided near the receiving pipe port 32, causing the blade to while rotating the exhaust chamber 4.
Since the volume is large, the pressure is increased to 111 and the pressure is reduced.

This reduced pressure clean outside air A is blown into the room from the air outlet R1 of the room R through the air supply duct 5.

On the other hand, compressed outside air A comes into contact with rotor blade F1.

The rotation is transmitted to the exhaust fan F2 via the transmission shaft F3, and the indoor contaminated air is removed from the intake port R2 of the return grill, etc.
The air passes through the return air duct 6 and is sequentially discharged to the outside from the outdoor outlet 81 of the exhaust duct 8. The balance between air supply and exhaust volume is determined by the capacity of the blower 2, the diameter of the air pipe 3, and the rotation gF.
The shape of the blade 1, and the transmission axis F of the rotary blade Fl and the exhaust fan F2.
It can be arbitrarily determined by the gear ratio etc. in 3.

In addition, by placing an air conditioner C between the air supply room 4 and the indoor room R, the temperature and humidity of the clean outside air can be adjusted, and the indoor H
The conditioned air can also be blown out.

A concrete example of this is shown in FIG. 3, in which the induction unit is shown in a room. In this device, a cold/hot water coil of a so-called air conditioner C is installed between the air supply chamber 4 and the indoor air outlet IURI, and the clean outside air is cooled and heated by the cold/hot water coil C1''9 and then sent indoors from the indoor air outlet R1. Blows out. Meanwhile, 1J1 air fan F
2, indoor contaminated air is sucked in 1: from IR2 to outdoor air outlet +-+at provided on wall W via υ1 air duct 8.
The structure is such that it is discharged from the

This device uses an induction unit I.
It is used as a perimeter air conditioner 6, such as by being able to directly discharge IJ-contaminated air.

As described above, the ventilation system of the present invention connects the blower and the air supply chamber through a small-diameter blast pipe, and communicates the air supply chamber and the room with the air supply tough I. The indoor air is communicated with the exhaust chamber by a return air duct, and the indoor air is exhausted by an exhaust fan placed in the exhaust chamber, so the ventilation effect is close to that of natural conditions, except for the fact that outside air is blown into the room by a blower. This allows contaminated indoor air to be discharged outdoors.

Moreover, since the ventilation system of the present invention has a sufficiently small air pipe on the supply side, the floor height of the building is not limited by the air pipe.
Therefore, sufficient floor height of the building can be ensured.

In this way, the present invention uses compressed air on the supply side as the power source for losses, so there is no need to provide a special power source for exhaust.
Moreover, it can be said that it is an excellent ventilation device in terms of resource saving.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram illustrating a ventilation system according to the present invention, FIG. 2 is a schematic sectional view showing the attachment shape fΔ of the air pipe provided between the blower and the air supply room, and FIG. It is an explanatory view showing a state where an air conditioner is arranged in the ventilation system concerning the present invention and arranged in a building. 2...Blower, 3...Blow pipe, 4...Air supply room. 42...Sound absorbing material, 5...Air supply duct. 6... Return air duct, 7... 1/1 air chamber, R...
Indoors. R1...Indoor blowout 1. :j, R2... Suction port, Fl
...Rotary wing. F2...D1 fan, C...air conditioner. Applicant Kajima Corporation Agent Patent Attorney Kuninori Funabashi Figure 1 Figure 3 1--1-51

Claims (1)

[Scope of Claims] 1. A blower and an air supply room are connected by a blower pipe, and the air supply room and a building room are communicated by an air supply duct, and the building room and an exhaust room are communicated by a return air duct. A ventilation system characterized by having an air outlet in the exhaust chamber. 2. A rotary blade body is arranged near the air supply pipe opening of the air supply chamber, and J
2. The ventilation system according to claim 1, wherein the JI air chamber is provided with an exhaust fan whose rotation is transmitted from the rotary blade body. 3. The ventilation system according to claim 1, characterized in that an air conditioner is disposed between the air supply chamber and the indoor air outlet. 4. The ventilation system according to claim 1, characterized in that a sound absorbing material is pasted on the inner wall surface of the air supply chamber.