JP3257737B2 - Air-conveying central air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a centralized air-conveying air-conditioning system, and can be used for a whole-room air-conditioning system in a house or office having high airtightness and high heat insulation.

[0002]

BACKGROUND ART In recent years, air conditioning such as cooling and heating has become indispensable in buildings such as houses and offices, and high heat insulation and high airtightness have been achieved in order to enhance air conditioning efficiency. Conventional air conditioning is generally performed for each section such as a room in a building except for a large building or the like. But,
With the high heat insulation and high airtightness, the introduction of a centralized air conditioner for cooling and heating the entire building has been promoted even in a small building such as a house.

As a centralized air-conditioning system in a small building such as a house as described above, an air-conveying system in which air conditioned in advance at a predetermined temperature and humidity is generated in one place in the building and circulated in the building. (Refer to JP-A-2-287034, JP-A-3-55458, etc. by the present applicant).

[0004] As an example, FIG. 3 shows a residential building 90 for a cold region in which an air-conveying central air conditioner 80 is installed. The building 90 has a plurality of living rooms 91 on the first and second floors.
And each is connected via a door 92 to a passage (not shown) such as a corridor. The passage on each floor is communicated by a staircase hall 93. The centralized air conditioner 80 has a centralized air conditioning unit 81, which heats the sucked air with a heat exchanger 82 and sends it to each room 91 through a duct 83. The air sent to each room 91 sequentially passes through a passage from a door 92 and collects at an air intake provided in a staircase hall 93.
Together, they are collected and circulated to the central air conditioning unit 81.

[0005] A damper 84 is installed in a portion of the duct 83 that opens into each of the chambers 91, and the degree of opening is adjusted by a room controller 85 so that the interior of each of the rooms is maintained at a predetermined temperature or the like. Hot water from a hot water boiler 86, which is a heat source, is supplied to the heat exchanger 82 of the centralized air conditioning unit 81, and the entire building is heated with high efficiency.
In addition to the hot water boiler, a heat pump type outdoor unit is connected in a manner other than or in a place other than a cold region, and a cooling medium is supplied as needed.

On the other hand, in a building 90 having high airtightness and high heat insulation, ventilation cannot be obtained by itself. Therefore, the centralized air conditioner 80 is provided with a ventilator 70. The ventilator 70 has two supply / exhaust paths and a total heat exchange ventilator 71 (such as a total heat exchange ventilator) that exchanges heat with each other. One path is a duct 72 that communicates with a staircase hall 93.
(Return air; RA) and duct 7 communicating with the outside
3 (Exhaust air; EA) to exhaust inside air. On the other side, the outside air is sucked through a duct 74 (out air; OA) for sucking outside air through the eaves gallery 94 and the back of the hut 95 of the building 90 and a duct 75 (supply air; SA) communicating with the centralized air conditioning unit 81. .

In such a configuration, as shown in FIG. 4, air is circulated to each room 91 by a centralized air conditioning unit 81 , and a stair hole 9 is provided by a ventilation device 70.
A part of the circulating air is extracted at 3, and the outside air is replaced and supplied to the central air conditioning unit 81. As a result, fresh air is circulated throughout the building and can be spread to each room 91. Then, the heat of the discharged air is transferred by the total heat exchange ventilation device 71 to fresh air to be newly taken in, so that high thermal efficiency can be maintained.
In addition, since ventilation is performed using air circulation to the whole building by the centralized air conditioning unit 81 , there is no need to provide a separate ventilation duct or the like to each room 91, and there is an advantage that facilities in the building 90 can be simplified. .

[0008]

However, in the ventilator 70 provided with the centralized air conditioner 80 as described above,
Ducts 72 to 75 of a considerable length are still required, so that an installation space for the ducts 72 to 75 is required, and complicated construction work is required. An object of the present invention is to provide an air-conveying centralized air-conditioning apparatus that can omit a ventilation duct and the like and reduce the number of construction steps and installation space.

[0009]

According to the present invention, when ventilation is performed in combination with an air-conveying centralized air conditioner, ventilation of the entire building can be realized by performing ventilation in a collective portion (for example, a passage portion) of circulating air. Based on this finding, the duct is intended to be eliminated by directly ventilating the outside air in such a gathering portion. In particular,
With a centralized air-conditioning unit that circulates in each room in the building room air as conditioning already air, and a ventilator for performing ventilation between the air and the outside air to the circulation, the ventilator, the循
In the space where the circulating air gathers and in the area adjacent to the outdoors
Provided, the air intake of the centralized air conditioning unit,
The air conditioner is provided facing a space in which the ventilation device is provided .

In addition, the circulating air is circulated to each room through a duct installed in the building and a passage in the building, and the ventilation device is installed on a wall surface of the passage adjacent to the outside. It is characterized by being.
Further, the ventilator is a heat exchange type ventilator that exchanges heat between air discharged from the room and air drawn from the outside.

[0011]

According to the present invention, the above-mentioned total heat exchange ventilator and the like are installed between the outer wall and the wall adjacent to the outside of the staircase, and the indoor and outdoor ventilation is performed directly. As a result, the ventilated air is circulated to the entire building by the centralized air conditioning unit , whereby the ventilation of each room is performed collectively.
In addition, ventilation is performed in the space where circulating air collects.
This allows the entire space to be fresh air,
By introducing air into the centralized air conditioning unit, the entire building
Can be supplied with fresh air. In addition, by performing indoor and outdoor ventilation directly through the wall surface, it is possible to eliminate the necessity of a long duct as in the related art, thereby reducing the installation space and simplifying the construction. Further, since the ventilation resistance due to the ventilation pipe and the like is eliminated, the power of the fan motor and the like of the ventilation device main body can be reduced.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, the building 90 and the air circulation type centralized air conditioner 80 have substantially the same configuration as that of FIG. 4 described above. However, in FIG. The difference is that a ventilation device 10 according to the invention is provided. Therefore, in order to simplify the description, the description of the same part is omitted, and only the different part, that is, the ventilation device 10 will be described below.

The ventilator 10 collects circulating air.
A total heat exchange ventilator 11 is provided on a part of the space adjacent to the outside, in this case, a wall surface along the outer wall of the step hall 93 of the building 90 . The total heat exchange ventilation device 11
An indoor air inlet 12 and an indoor air outlet 15 are provided on the indoor surface.
And an outdoor-side intake port 14 and an outdoor-side exhaust port 13 on the opposite outer wall surface.

As shown in FIG. 2, the indoor air inlet 12 is communicated with the outdoor air outlet 13 to form an inside air discharge path. Further, the outdoor-side intake port 14 is communicated with the indoor-side exhaust port 15 to form an outside air intake path. In the total heat exchange ventilator 11, the inside air exhaust path and the outside air intake path are configured to exchange heat with each other, so that heat during heating and cold heat during cooling are recovered, so as not to be wasted.

In this embodiment, centralized air conditioning is used.
The conditioned air is circulated by the unit 81 and the building 90
Air conditioning in the entire building is performed, and at least a part of the air circulated by the ventilation device 10 is ventilated in the staircase hall 93, and the ventilated air is circulated in the entire building 90 by the centralized air conditioning unit 81, thereby ventilating the entire building. Is performed. Also, ventilation is performed in the space where the circulating air gathers.
The entire space can be fresh air.
By bringing fresh air into the central air conditioning unit,
Fresh air can be supplied to the whole building.

Therefore, according to this embodiment, the central air conditioning unit
The ventilation of the whole building can be performed using the air circulation by the unit 81, and the duct like the above-described conventional ventilation device 70 can be omitted by installing the ventilation device 10 in the collecting part of the air circulation. . For this reason, the central air conditioning unit
There is no need to install a duct for the ventilator 70 in addition to the duct for the slot 81 , and the structure of the building 90 can be simplified.

Further, since the installation of the duct can be omitted, the construction work can be omitted and the construction cost can be reduced. Further, in the ventilator 10, since the duct is omitted and the air can be directly taken in and discharged, the power for air supply and exhaust can be simplified, and the equipment can be downsized and the power cost can be reduced. can do.

The present invention is not limited to the above-described embodiment, but includes the following modifications and the like. That is, although the ventilation device 10 in the above embodiment is provided on the wall surface of the second floor of the staircase hall 93, it may be provided on the wall surface of the first floor. Ventilation device 1
0 is installed under the floor or behind the ceiling, the indoor air inlet 12 and the indoor air outlet 15 are installed on the floor or ceiling, and the outdoor air inlet 14 and the outdoor air outlet 13 are provided on the outer wall in the vicinity.
May be installed.

Further, the type and performance of the total heat exchange / ventilation apparatus 11, the power for supplying and exhausting air, and the like may be appropriately selected in implementation. In addition, the type of the centralized air conditioning unit 81 and the type of the duct 83 may be appropriately selected.
It is sufficient that a concentrated portion of the circulating air that can be installed can be obtained.

[0020]

As described above, according to the present invention,
By performing ventilation in the collecting part of the circulating air, a conventional ventilation duct or the like can be omitted, and the number of construction steps and installation space for that can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing one embodiment of the present invention.

FIG. 2 is a schematic diagram showing an air flow path of the embodiment.

FIG. 3 is a schematic configuration diagram showing a conventional example.

FIG. 4 is a schematic diagram showing an air circulation path of the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Ventilation device 11 Total heat exchange ventilation device 12 Indoor side intake port 13 Outdoor side exhaust port 14 Outdoor side intake port 15 Indoor side exhaust port 80 Air-conveying central air conditioner 81 Central air conditioning unit 83 Duct 90 Building 91 Living room 93 It is a passage. Staircase hall

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-55458 (JP, A) JP-A-1-291026 (JP, A) JP-A-5-10554 (JP, A) JP-A-4- 131 (JP, A) JP-A-1-300135 (JP, A) JP-A-2-287034 (JP, A) JP-A-60-259847 (JP, A) JP-A-6-10424 (JP, A) JP-A-63-290335 (JP, A) JP-A-58-15130 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 3/044 F24F 3/00 F24F 7/013 101 F24F 7/08 101

Claims (3)

(57) [Claims] 1. A central air-conditioning unit for circulating room air as conditioned air to each room in a building, and a ventilation device for ventilating the circulating air and outside air.
The device is in a space where the circulating air is gathered and outdoors.
Air in the centralized air conditioning unit,
The intake faces the space where the ventilation device is provided
An air-conveying central air conditioner, which is provided . 2. A centralized air-conveying air-conditioning system according to claim 1, wherein said circulating air is circulated to each of said rooms through a duct installed in said building and a passage in said building. A centralized air-conveying air conditioner, wherein the device is installed on a wall adjacent to the outside of the passage. 3. The air-conveying central air conditioner according to claim 1, wherein the ventilator exchanges heat between air exhausted from a room and air taken from an outdoor. A centralized air-conveying air conditioner characterized by being a ventilator.