JPH06313586A - Ventilating air conditioning system - Google Patents

Abstract

PURPOSE:To supply a ventilating air conditioning system in which ventilations of zones can be sufficiently conducted. CONSTITUTION:A ventilating air conditioning system comprises a ventilator 1 and an air conditioning unit 3 in such a manner that the unit 3 has a plurality of air conditioning ducts 23 for feeding air conditioned air to a plurality of rooms. A ventilation duct 21 of the unit 1 is connected to the ducts 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation air conditioning system including a heat recovery type ventilation unit.

[0002]

2. Description of the Related Art Generally, there is known a ventilation air conditioning system for cooling and heating a room while ventilating the room by combining a sensible heat recovery type ventilation unit and a cooling and heating air conditioning unit. FIG. 3 shows an example of a conventional ventilation air conditioning system. Referring to FIG. 3, reference numeral 51 is a sensible heat recovery type ventilation unit, and 53 is a cooling / heating air conditioning unit. The ventilation unit 51 exchanges heat between the air sucked from each room in the non-residential area and the outside air, and supplies the air after the heat exchange to the inlet of the air conditioning unit 53. Air conditioning unit 5
3 is the A-zone and the B-zone, respectively, after sucking indoor air from two living areas (A-zone and B-zone) and exchanging heat in the unit 53 including the heat exchanger 57 and the blower 59. Supply conditioned air to the residential area of.

According to this, while the air from the non-residential area is exhausted to the outside of the building through the ventilation unit 51, the air conditioning unit is introduced through the unit 51 while introducing substantially the same amount of outside air into the building. Air conditioning each living area through 53.

[0004]

In the above structure, A
When both the zone and the B zone are air-conditioned, the inlet dampers 61 and 63 and the outlet dampers 65 and 67 are both fully opened. In this case, the outside air introduced through the ventilation unit 51 is guided to the air conditioning unit 53, where it is mixed with indoor air and heat-exchanged, and then distributed to each zone. In this case, substantially the same amount of outside air is introduced into each zone through the ventilation unit 51.

However, in this type, only one of the zones, for example, only the A zone, may be air-conditioned. In that case, the dampers 61 and 65 are fully opened and the dampers 63 and 67 are closed.

The problem here is that the dampers 63 and 67 are provided.
If is closed, during that time, not only the air conditioning of the B zone is stopped, but also the ventilation of the B zone is completely stopped.

Therefore, the dampers 63, 67 are conventionally used.
Is not fully closed, but is opened about 30% to ventilate the B zone to some extent, but in any case, the ventilation of the B zone becomes insufficient.

Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional technique and to provide a ventilation air conditioning system capable of sufficiently performing ventilation in each zone.

[0009]

In order to achieve the above object, a ventilation unit and an air conditioning unit are provided, and this air conditioning unit is provided with a plurality of air conditioning ducts for sending out conditioned air to a plurality of rooms. In the air conditioning system,
It is characterized in that the ventilation duct of the ventilation unit is connected to each air conditioning duct.

[0010]

According to the present invention, since the ventilation duct of the ventilation unit is directly connected to each air conditioning duct, the ventilation is performed separately from the air conditioning, and the ventilation in each room is not sufficient. Absent.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a ventilation air conditioning system according to the present invention will be described below with reference to the drawings.

In FIG. 1, 1 is a sensible heat recovery type ventilation unit, and 3 is a cooling / heating air conditioning unit. Ventilation unit 1
Is heat-exchanged between the air sucked from each room in the non-residential area and the outside air, and the air after heat exchange is performed by the air conditioning unit 3
Supply to the entrance. The cooling and heating air conditioning unit 3 draws in indoor air from two living areas (A zone, B zone) and exchanges heat in the unit 3 including the heat exchanger 7 and the blower 9, and then the A zone and B zone. Provide conditioned air to each residential area.

According to this, while the air from the non-residential area is exhausted to the outside of the building through the ventilation unit 1, the air conditioning unit is introduced through the unit 1 while introducing substantially the same amount of outside air into the building. Air conditioning each living area through 3.

However, this embodiment is characterized in that the ventilation duct 21 of the ventilation unit 1 bypasses the air conditioning unit 3 and is connected to the downstream side of the dampers 15 and 17 of the air conditioning duct 23. Specifically, the air conditioning duct 23
Are branched to guide the conditioned air to the A zone and the B zone, respectively, and the respective branch ducts 23a and 23b.
The branch ducts 21a and 21b of the ventilation duct 21 are connected downstream of the dampers 15 and 17.

In the above structure, when air conditioning is performed in both the A zone and the B zone, the inlet dampers 11 and 13 and the outlet dampers 15 and 17 are both fully opened. In this case, the outside air introduced through the ventilation unit 1 is the air conditioning unit 3
To bypass the ventilation duct 21, the branch duct 21a,
21b, and further the branch duct 23a of the air conditioning duct 23,
It is distributed to each zone through 23b. In this case, approximately the same amount of outside air is introduced into each zone A and B.

However, according to this embodiment, even if the air conditioning of any of the zones A and B is stopped, measures are taken so that only ventilation is sufficiently performed.

For example, to stop the air conditioning in the B zone,
It is assumed that the dampers 13 and 17 are closed. Even in this case, the outside air introduced through the ventilation unit 1 is not supplied to the air conditioning unit 3
The ventilation duct 21 and the branch duct 21
It is directly supplied to A zone and B zone through a and 21b.

Therefore, the ventilation amounts of the A zone and the B zone do not become insufficient.

This ventilation air conditioning system is highly airtight,
Since it is assumed that it will be installed in a highly insulated building, ventilation is required for 24 hours regardless of whether there are people in the building. For this reason, a system in which ventilation is not influenced by the operation of the air conditioning unit 3 like this ventilation and air conditioning system is a very effective system in terms of exhausting excess humidity and odor, or introducing fresh outside air.

FIG. 2 shows another embodiment. The feature of this embodiment resides in that the partition plate 31 is provided inside the air conditioning unit 3, the indoor air heat exchange portion 3a and the outside air heat exchange portion 3b are provided adjacent to the indoor air heat exchange portion 3a.

The outside air passing through the ventilation unit 1 is
After entering the outside air heat exchange section 3b and exchanging heat with the heat exchanger 7, the ventilation duct 23 and the branch ducts 23a, 2
It is supplied to A zone and B zone through 3b. According to this, even if the air conditioning in any of the zones A and B is stopped, just as in the above-described embodiment, only the ventilation can be sufficiently performed.

In each of the above embodiments, for example,
When only the A zone is to be air-conditioned, the dampers 13 and 17 leading to the B zone are fully closed, but the dampers 13 and 17 may not be fully closed and may be controlled to open a little.

In this case, the blower 9 in the air conditioning unit 3 is operated and the outside air is sucked into the branch ducts 23a and 23b, so that the blower (not shown) in the ventilation unit 1 can be downsized accordingly. can do.

In this type, a duct of another system may be used for ventilation. However, this would increase the number of ducts, and the construction will take time.

However, according to each of the above-mentioned embodiments, since the number of ducts is the same as the conventional one, such a problem does not occur.

[0026]

As is apparent from the above description, according to the present invention, since the ventilation ducts of the ventilation unit are connected to the respective air conditioning ducts, ventilation is performed separately from air conditioning.
Each room is well ventilated.

[Brief description of drawings]

FIG. 1 is a system diagram showing an embodiment of a ventilation air conditioning system according to the present invention.

FIG. 2 is a system diagram showing another embodiment.

FIG. 3 is a system diagram showing a conventional ventilation and air conditioning system.

[Explanation of symbols]

 1 Ventilation unit 3 Air conditioning unit 11, 13, 15, 17 Damper 21 Ventilation duct 23 Air conditioning duct

Claims (1)

[Claims] 1. A ventilation unit and an air conditioning unit are provided,
This air conditioning unit is a ventilation air conditioning system having a plurality of air conditioning ducts for sending out conditioned air to a plurality of rooms, wherein the ventilation ducts of the ventilation unit are connected to the respective air conditioning ducts. .