JPH07190414A - Air conveying-type centralized air conditioner - Google Patents

Abstract

PURPOSE:To provide an air conveying-type centralized air conditioner wherein a duct for ventilation can be omitted, and also construction manhour and installation space can be decreased. CONSTITUTION:The whole building air conditioning is performed by circulating conditioned air into a building 90 by a centralized air-conditioning unit 81 and ducts 83, and a ventilation duct is omitted by directly performing ventilation of the inside and the outside of the building through a process of providing a ventilation device 10 on a step hall 93 to which air is collected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-conveying type centralized air-conditioning system, and can be used for an air-conditioning system for a whole building in a house such as a house or office which is highly airtight and highly insulated.

[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 airtightness have been achieved in order to improve air conditioning efficiency. Conventional air conditioning is generally performed for each compartment such as each room in a building except for a large building. But,
Along with the high insulation and airtightness, the introduction of a centralized air conditioner for heating and cooling the whole building is being promoted even in small buildings such as houses.

The centralized air-conditioning system for a small building such as a house as described above is an air-conveying type air-conditioning system in which air conditioned in advance at a predetermined temperature and humidity is generated at one place in the building and circulated in the building. The centralized air-conditioning system has been proposed (see JP-A-2-287034 and JP-A-3-55458 by the applicant of the present application).

As an example, FIG. 3 shows a residential building 90 for a cold region in which an air-conveying type 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 to a passage (not shown) such as a corridor via a door 92. The passages on each floor are connected by a staircase hall 93. The central air conditioning unit 80 has a central air conditioning unit 81, and this unit 81 heats the sucked air by a heat exchanger 82 and sends it to each chamber 91 through a duct 83. The air sent to each room 91 sequentially passes through the door 92, passes through the passages, and passes through the stairs hall 93 to be collected and circulated to the central air conditioning unit 81.

A damper 84 is installed at a portion of the duct 83 that opens into each chamber 91, and the opening thereof is adjusted by a room controller 85 to maintain the inside of the chamber 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 in a place other than a cold region, a heat pump type outdoor unit is connected in the form of replacement or a replacement, and a cooling medium for cooling is supplied as necessary.

On the other hand, in the air-tight and highly insulating building 90, ventilation cannot be obtained by itself. For this reason, the central air conditioning unit 80 is provided with the ventilation unit 70. The ventilation device 70 has a two-system air supply / exhaust path and a total heat exchange ventilation device 71 (such as a total heat exchange ventilation fan) for exchanging heat with each other, and one path is a duct 72 communicating with the stairs hall 93.
(Return air; RA) and duct 7 communicating with the outdoors
Internal air is discharged through 3 (Exhaust air; EA). On the other hand, the outside air is sucked through a duct 74 (out air; OA) for sucking outside air through the eaves gallery 94 and the attic 95 of the building 90 and a duct 75 (supply air; SA) communicating with the central air conditioning unit 81. .

In such a structure, as shown in FIG. 4, the central air conditioner 80 circulates air to each room 91, and the ventilation device 70 extracts a part of the air circulated in the stairs hall 93. The outside air, which replaces this, is supplied to the central air conditioning unit 81. As a result, fresh air is circulated throughout the building and can reach all the rooms 91. Then, the total heat exchange ventilation device 71 transfers the heat of the exhausted air to the newly introduced outside air, so that the thermal efficiency can be kept high. Also,
Since ventilation is performed by using the air circulation to the whole building by the central air conditioning unit 80, there is also no need to provide a separate ventilation duct or the like to each room 91, and there is also an advantage that the equipment in the building 90 can be simplified.

[0008]

However, in the ventilator 70 provided with the central air conditioner 80 as described above,
The ducts 72 to 75 having a considerable length are still required, and it is necessary to secure an installation space for the ducts 72 to 75, and complicated construction work is required. An object of the present invention is to provide an air-conveying centralized air conditioner that can omit ventilation ducts and the like and can 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 type centralized air conditioner, ventilation can be realized in the entire building by performing ventilation in a collective portion of circulating air (for example, a passage portion). Based on this finding, it is intended to eliminate the duct by directly ventilating the outside air in such a gathering portion. In particular,
The conditioned air is circulated in each room in the building, and a ventilator for collecting the circulated air and for ventilating the circulated air and the outside air is provided in a portion adjacent to the outside.

Further, the circulating air is circulated to the respective rooms through a duct installed in the building and a passage in the building, and the ventilation device is installed on a wall surface adjacent to the outside of the passage. It is characterized by being
Further, the ventilation device is a heat exchange type ventilation device for exchanging heat between the air discharged from the room and the air sucked from the outdoors.

[0011]

In the present invention as described above, the above-mentioned total heat exchange ventilation device or the like is installed between the outer wall and the wall surface adjacent to the outdoor of the staircase to directly perform indoor / outdoor ventilation. As a result, the ventilated air is circulated to the whole building by the centralized air conditioning system, whereby the ventilation of each room is performed collectively. Further, by directly ventilating indoors and outdoors through the wall surface, the need for a long duct as in the past can be eliminated, and the installation space can be reduced and the construction can be simplified. Further, since the ventilation resistance due to the ventilation pipe or the like is eliminated, it is possible to reduce the power of the fan motor or the like of the ventilation device body.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 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 central air-conditioning system 80 have substantially the same configuration as that of FIG. 4 described above, but the ventilation system 70 is provided 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 parts will be omitted, and only the ventilating device 10 that is a different part will be described below.

The ventilator 10 is a stair hall 9 in which the circulating air from the central air conditioner 80 gathers and returns in the building 90.
Total heat exchange ventilation device 1 provided on the wall surface along the outer wall of 3
1 is provided. The total heat exchange ventilation device 11 has an indoor intake port 12 and an indoor exhaust port 15 on the indoor surface, and an outdoor intake port 14 and an outdoor exhaust port 1 on the outer wall surface on the opposite side.
Equipped with 3.

As shown in FIG. 2, the indoor intake port 12 communicates with the outdoor exhaust port 13 to form an internal air discharge path. Further, the outdoor side intake port 14 communicates with the indoor side exhaust port 15 and forms an outside air intake path. In the total heat exchange ventilator 11, the inside air discharge path and the outside air intake path are configured to exchange heat with each other, and heat during heating and cold during cooling are recovered and are not wasted.

In this embodiment, the centralized air conditioner 80 circulates the conditioned air to air-condition the entire building 90, and a part of the air circulated by the ventilation device 10 is in the stairs hall 93. Ventilation is performed, and the ventilated air is circulated in the entire building 90 by the central air conditioning unit 80, whereby the entire building is ventilated.

Therefore, according to the present embodiment, the ventilation of the whole building can be performed by utilizing the air circulation by the centralized air conditioner 80, and the ventilation device 10 is installed at the gathering portion of the air circulation system. A duct such as the ventilation device 70 can be omitted. Therefore, the central air conditioner 80
It is not necessary to install a duct or the like for the ventilation device 70 in addition to the duct for the building, and the structure of the building 90 can be simplified.

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 ventilation device 10, since the duct is omitted and direct air intake / exhaust can be performed, power supply / exhaust power and the like can be simplified, downsizing of equipment and reduction of power cost can be realized. can do.

The present invention is not limited to the above embodiments, and the following modifications and the like are also included in the present invention. That is, although the ventilation device 10 in the above embodiment is provided on the wall surface of the second floor of the stairs hall 93, it may be provided on the wall surface of the first floor. In addition, ventilation device 1
0 is installed under the floor or above the ceiling, the indoor side intake port 12 and the indoor side exhaust port 15 are installed on the floor surface or the ceiling surface, and the outdoor side intake port 14 and the outdoor side exhaust port 13 are provided on the adjacent outer wall surface.
May be installed.

Further, the type and performance of the total heat exchange ventilation device 11, the power for supplying and exhausting air, etc. may be appropriately selected for implementation. Further, the type of the centralized air conditioning unit 81, the form of the duct 83, etc. may be appropriately selected.
It suffices that a concentrated portion of the circulating air that can be installed is obtained.

[0020]

As described above, according to the present invention,
By ventilating the circulating air at the gathering portion, it is possible to omit conventional ventilation ducts and the like, and it is possible to reduce the number of construction steps and installation space for that purpose.

[Brief description of drawings]

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

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

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

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

[Explanation of symbols]

 10 Ventilator 11 Total Heat Exchange Ventilator 12 Indoor Air Intake Port 13 Outdoor Air Exhaust Port 14 Outdoor Air Intake Port 15 Indoor Air Exhaust Port 80 Air Conveying Central Air Conditioner 81 Central Air Conditioning Unit 83 Duct 90 Building 91 Living Room 93 Aisle Stairs hall

Claims (3)

[Claims] 1. A ventilation device is provided which circulates conditioned air to each room in a building, and which ventilates the circulated air and the outside air at a portion where the circulated air gathers and is adjacent to the outside. An air-conveying centralized air conditioner characterized by. 2. The air-conveying centralized air-conditioning system according to claim 1, wherein the circulating air is circulated to each of the chambers through a duct installed in the building and a passage in the building, and the ventilation is provided. An air-conveying type centralized air conditioner, wherein the device is installed on a wall surface adjacent to the outside of the passage. 3. The air-conveying centralized air-conditioning system according to claim 1 or 2, wherein the ventilation device performs heat exchange between the air discharged from the room and the air sucked from the outdoors. An air-conveying centralized air conditioner characterized by being a ventilation system.