JPH062910A - Air conditioning ventilation device - Google Patents

Abstract

PURPOSE:To make it possible to eliminate such a situation when an indoor air is remarkably contaminated by increasing the amount of exhaust emission air of an air conditioning ventilation device. CONSTITUTION:There are provided a heat exchanger 6, an air supply fan 8 which forms an air supply current A and an exhaust air emission fan 11 which forms a first exhaust air current passing through a first exhaust air duct 21 in a box-shaped body 1. Further, a second exhaust air duct 22 is attached to the first exhaust air duct 21 where a second exhaust air emission fan 23, which forms a second exhaust air current B1, is installed. A damper 26 and a damper 27 are installed between the first exhaust air duct 21 and the second exhaust air duct 22. When an indoor air is markedly contaminated, a motor 24 is operated in addition to the fans and the dampers 26 and 27 are opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning and ventilation system for taking in outside air and exhausting indoor air through a heat exchanger.

[0002]

2. Description of the Related Art FIGS.
It is a figure which shows the conventional air conditioning ventilator shown by the 928 publication, FIG. 3 is a top view, FIG. 4 is a side view, FIG. 5 is a principal part perspective view of a heat exchanger.

In the figure, (1) is side members (1a) to (1d),
A box body composed of an upper surface member (1e), a lower surface member (1f) and a panel (1g), (2) an indoor side intake port provided facing the room, (3) the same indoor side air outlet, (4) is an outdoor suction port that communicates with the outdoor, (5) is also an outdoor air outlet, and (6) is a heat exchanger, and a plurality of flat plates (6a) are alternately formed with a forming direction of 90%. ° It is composed of corrugated plates (6b) that are sandwiched in a different manner, and a heat exchanger is designed to be provided between the air supply passage through which the air supply flow A flows and the exhaust passage through which the exhaust air flow B flows. There is.

(7) is a feed air flow A and an exhaust flow B of the heat exchanger (6)
A filter provided on the inlet side of the fan, (8) a blower for air supply that is driven by a motor (9) to form a supply air flow A, (10) an air supply duct and a casing of the air blower (8) (11) is a blower for exhaust that forms an exhaust flow B driven by a motor (12), and (13) is an exhaust air passage and a blower for exhaust.
It is a molded member in which the casing (11) is integrally formed. And, in the box body (1), an air supply air passage from the outdoor suction port (4) to the indoor side air outlet (3) via the air supply blower (8) and the heat exchanger (6), An exhaust air passage is formed from the indoor suction port (2) to the outdoor air outlet (5) via the exhaust blower (11) and the heat exchanger (6). (14) is a fitting for attachment.

The conventional air-conditioning ventilator is constructed as described above, and the outside air is sucked from the outdoor suction port (4) by the rotation of the air supply blower (8), removed by the filter (7) and exchanged heat. After passing through the device (6), the air supply air A is blown out into the room from the indoor side outlet (3). In addition, the indoor air is blower for exhaust (11)
Rotation, the air is sucked in through the indoor suction port (2), dust is removed by the filter (7), passes through the heat exchanger (6), and the outdoor air outlet
The exhaust flow B is blown out from the room (5) to the outside. In this way, heat exchange is continuously performed between the supply air flow A and the exhaust air flow B.

[0006]

In the conventional air-conditioning ventilation system as described above, since the exhaust volume is determined by the capacity of the exhaust blower (11), the exhaust volume is significantly increased when the indoor air is significantly contaminated. There is a problem in that even if one tries, this cannot be achieved.

The present invention has been made in order to solve the above problems, and an object of the present invention is to provide an air-conditioning ventilator capable of increasing the exhaust amount according to the degree of contamination of indoor air.

[0008]

According to a first aspect of the present invention, there is provided an air-conditioning ventilation device in which a second exhaust gas is provided in a first exhaust air passage extending from an outlet side of an exhaust passage of a heat exchanger to an outdoor air outlet. The air passages are arranged side by side, the second exhaust air blower is installed in the second exhaust air passage, and when only the first exhaust air blower in the first exhaust air passage is operated, the first and the second exhaust air blowers are operated. The second exhaust air passage is separated, and a damper is provided to connect the first and second exhaust air passages when the first and second exhaust air blowers are operated.

The air conditioning and ventilation system according to the second invention is
In the first aspect of the invention, a sound absorbing material is provided at least inside the first exhaust air passage out of the first and second exhaust air passages.

[0010]

In the first aspect of the present invention, the second exhaust air passage is provided in parallel with the first exhaust air passage having the first exhaust air blower, and the second exhaust air passage is provided in the second exhaust air passage. Since the exhaust blower is installed, the amount of exhaust increases due to the additional operation of the second exhaust blower.

In the second aspect of the invention, since the sound absorbing material is provided at least inside the first exhaust air passage, the exhaust flow passing through these exhaust air passages is absorbed.

[0012]

【Example】

Example 1. 1 and 2 are views showing an embodiment of the first and second inventions of the present invention. FIG. 1 is a plan sectional view and FIG. 2 is a side view. Show.
Note that FIG. 5 is also used in this embodiment.

In the figure, (21) and (22) are side members (1b) and (1c).
(22a), the upper surface member (1e) and the lower surface member (22b), which are the exhaust air passages, and form the first exhaust air passage (21) and the second exhaust air passage (22). (23) is the second exhaust air duct (22)
Installed inside, driven by motor (24), exhaust flow B1
The second exhaust blower forming the, (25) is the exhaust blower (2
A molded member forming the casing of 3), (26) and (27) are dampers that communicate or separate the first and second exhaust air passages (21) and (22),
Reference numeral (28) is a sound absorbing material provided in a portion of the first exhaust air passage (21) which is in contact with the exhaust streams B and B1.

In the air-conditioning ventilator constructed as described above, the second exhaust blower (23) is normally stopped, and the dampers (26) and (27) are at the positions indicated by the chain line. And the second exhaust air ducts (21) and (22) are separated. The ventilation operation in this state is the same as that of the conventional device. At this time, the damper
(26) (27) is closed, so the exhaust flow B is the second exhaust line.
Backflow into (22) is prevented.

When the second exhaust blower (23) is driven and the dampers (26) and (27) are opened to the positions shown by the solid lines when the indoor air is significantly contaminated, the first and second exhaust air passages are opened. (21) (22) communicate with each other to generate an exhaust flow B1. As a result, the amount of exhaust air becomes larger than the amount of air supply, and it becomes possible to quickly remove dirt in the room. At this time, the exhaust flows B, B1 are absorbed by the sound absorbing material (28) and pass through the first exhaust air passage (21).
The noise level of can be attenuated.

Example 2. In the first embodiment, the sound absorbing material (28) is provided in the first exhaust air passage (21), but if it is provided in the second exhaust blower (23), the sound absorbing function can be further enhanced. It is possible.

[0017]

As described above, in the first aspect of the present invention, the second exhaust air passage is provided in parallel with the first exhaust air passage having the first exhaust air blower, and the second exhaust air passage is provided. Since the second exhaust blower is installed inside, the additional operation of the second exhaust blower increases the exhaust volume, and when the indoor air is significantly dirty, it immediately ventilates to increase indoor comfort. There is an effect that can be.

Further, in the second aspect of the invention, since the sound absorbing material is provided at least inside the first exhaust air passage, the exhaust flow passing through the exhaust air passage is absorbed, and quiet ventilation can be achieved.

[Brief description of drawings]

FIG. 1 is a plan sectional view showing a first embodiment of the present invention.

FIG. 2 is a side view showing the first embodiment of the present invention.

FIG. 3 is a plan view showing a conventional air conditioning ventilation device.

FIG. 4 is a side view showing a conventional air conditioning ventilation device.

5 is a perspective view of a main part of the heat exchanger of FIG.

[Explanation of symbols]

 5 Outdoor Air Outlet 6 Heat Exchanger 11 First Exhaust Blower 21 First Exhaust Air Passage 22 Second Exhaust Air Passage 23 Second Exhaust Blower 26, 27 Damper 28 Sound Absorbing Material A Air Supply B First Exhaust flow B1 Second exhaust flow

Claims (2)

[Claims] 1. A heat exchanger having an air supply passage and an exhaust passage, and a first heat exchanger extending from an outlet side of the exhaust passage to an outdoor air outlet.
In the first exhaust air passage, and a first exhaust air blower installed in the first exhaust air passage to form a first exhaust flow, the ventilation device being arranged in parallel with the first exhaust air passage. A second exhaust air duct, a second exhaust air blower installed in the second exhaust air duct to form a second exhaust flow, and the above when only the first exhaust air blower is operated. And a damper that separates the first and second exhaust air passages and connects the first and second exhaust air passages when the first and second exhaust air blowers are operated. Air-conditioning ventilation system. 2. A heat exchanger having an air supply passage and an exhaust passage, and a first heat exchanger extending from an outlet side of the exhaust passage to an outdoor air outlet.
In the first exhaust air passage, and a first exhaust air blower installed in the first exhaust air passage to form a first exhaust flow, the ventilation device being arranged in parallel with the first exhaust air passage. A second exhaust air duct, a second exhaust air blower installed in the second exhaust air duct to form a second exhaust flow, and the above when only the first exhaust air blower is operated. The first and second exhaust air passages are separated from each other, and when the first and second exhaust air blowers are operated, the damper that communicates the first and second exhaust air passages with the first and second exhaust air passages. An air-conditioning ventilator, wherein a sound absorbing material is provided at least inside the first exhaust air passage of the second exhaust air passage.