JP2020169731A - Ventilation air conditioning system - Google Patents

Abstract

To provide a ventilation air conditioning system which can supply clean conditioned air to an indoor space while performing efficient air conditioning of a whole building.SOLUTION: A ventilation air conditioning system of a building (an individual house 1), including an attic space 6 partitioned hermetically in such a way so as to achieve thermal insulation by using a roof heat insulation panel, includes an air conditioner 20 and a ventilation unit 30 provided at the attic space 6. The air conditioner 20 performs air conditioning for air in the attic space 6 and the attic space 6 is utilized as a chamber space that accumulates conditioned air. The ventilation unit 30 includes a heat exchanger 31 which moves heat energy of discharged air discharged from the building 1 to the outside to suctioned air suctioned from the outside into the building.SELECTED DRAWING: Figure 1

Description

The present invention relates to a ventilation air conditioning system.

Ventilation and air conditioning systems that use one or more air conditioners to air-condition the living rooms of the entire building are known (see, for example, Patent Document 1). This ventilation air conditioning system is applied to a house with filled insulation on the outer periphery where the outer wall, roof and foundation are composed of an airtight insulation structure, and the air conditioning that communicates the space between the outer wall and the inner wall from under the floor to the ceiling. It is used as a ventilation passage for. By sucking the air in the room with an air conditioner installed behind the ceiling and blowing it into the ventilation passage as air-conditioned air, the pressure inside the ventilation passage is made higher than that in the room, and the air in the ventilation passage is blown into the room. As a result, the conditioned air in the ventilation passage is supplied to the room, and each room is conditioned.

JP-A-11-108394

In the ventilation and air conditioning system of Patent Document 1, in order to improve the air conditioning efficiency, the entire circumference of the building has an airtight heat insulating structure, and since air is circulated in the building, there is a problem that the indoor air is gradually polluted. Patent Document 1 does not disclose or suggest a configuration for ventilating indoor air and outside air.

Therefore, an object of the present invention is to provide a ventilation air-conditioning system capable of supplying clean air-conditioned air to a room while performing efficient air-conditioning in the entire building.

The present invention for solving the above-mentioned problems is a ventilation and air-conditioning system for a building provided with a hut back space partitioned by airtight heat insulation using a roof heat insulating panel, and an air conditioner and ventilation provided in the hut back space. It has a unit. The air conditioner air-conditions the air inside the cabin back space, the cabin back space is used as a chamber space for storing air-conditioned air, and the ventilation unit is the heat energy of exhaust air discharged from the inside of the building to the outside. It is characterized by being equipped with a heat exchanger that moves the air to the intake air that is sucked into the building from the outside.

According to the ventilation and air conditioning system having the above configuration, the space behind the hut partitioned by the airtight heat insulation is effectively utilized, and it is not necessary to separately provide the air conditioning chamber, so that the construction labor and the construction cost can be reduced. In addition, since ventilation is performed while exchanging heat, clean air conditioning air can be supplied to the room while performing efficient air conditioning in the entire building with little energy loss.

The ventilation air-conditioning system of the present invention further includes a ventilation means provided on the ceiling of the living room directly below the cabin back space, and the ventilation means directly supplies the air-conditioning air inside the cabin back space to the living room. It is preferable to do so. According to such a configuration, conditioned air can be supplied to the living room directly under the cabin back space without using a duct, so that the construction labor and the construction cost can be reduced.

Further, in the ventilation air-conditioning system of the present invention, the ventilation unit sucks the air discharged to the outside from the corridor or the staircase directly below the hut back space, and discharges the air sucked from the outside to the hut back space. Is preferable. According to such a configuration, the air conditioning efficiency can be improved because the air is sucked from the space other than the living room without directly sucking the conditioned air from the living room.

According to the ventilation air conditioning system according to the present invention, clean air conditioning air can be supplied to the room while performing efficient air conditioning in the entire building.

It is an overall block diagram which showed the ventilation air-conditioning system which concerns on embodiment of this invention.

The ventilation and air conditioning system according to the embodiment of the present invention will be described in detail with reference to the drawings. In the present embodiment, the case where the ventilation air conditioning system is applied to a two-story house will be described as an example.

As shown in FIG. 1, the building to which the ventilation and air conditioning system is applied is a detached house 1, a heat insulating roof 2 in which a roof heat insulating panel is airtightly installed, and a heat insulating wall 3 in which an outer wall heat insulating panel is airtightly installed. It has an outer peripheral filling insulation structure with and. In addition, a heat insulating material is laid under the floor on the first floor, and the heat insulating floor 4 is formed. A cabin back space 6 is formed above the ceiling 5 on the second floor. The cabin back space 6 is partitioned from the outside air by the heat insulating roof 2 and the upper end portion of the heat insulating wall 3, and is in an airtight heat insulating state with respect to the outside. In FIG. 1, living rooms 10 and 10 on the first floor, an attic space 11, living rooms 12 and 12 on the second floor, a corridor 13, and a duct space 14 are illustrated.

An air conditioner 20 and a ventilation unit 30 are provided in the cabin back space 6. In the present invention, the cabin back space 6 is used as a chamber space for storing conditioned air. Normally, the air conditioning chamber generally forms a box-shaped space surrounded by a heat insulating material, but in the present embodiment, the space partitioned by the roof heat insulating panel and the upper end of the outer wall heat insulating panel is used as it is as the chamber space. It is said. Since the detached house 1 originally has an airtight outer peripheral portion filling heat insulating structure, the cabin back space 6 also has an airtight heat insulating structure. The air conditioner 20 has an ability to air-condition the entire internal space of the detached house 1. The air conditioner 20 is installed on the inner wall surface of the cabin back space 6. The air conditioner 20 may be singular or plural as long as it has the necessary air conditioning capacity as a whole.

The ventilation unit 30 includes a heat exchanger 31 that transfers the heat energy of the exhaust air discharged from the inside of the building to the outside to the intake air sucked into the building from the outside. The heat exchanger 31 recovers the heat energy that was discarded together with the dirty air at the time of exhausting, transfers it to the air sucked from the outside, and returns it to the cabin back space 6.

The ventilation unit 30 includes an intake pipe 32 and an exhaust pipe 33 that exhaust the air inside the building to the outside, and a suction pipe 34 and a discharge pipe 35 that suck the outside air into the building. The intake pipe 32 opens to the ceiling 5 of the corridor 13 directly below the space behind the cabin, and sucks air from the corridor 13. The downstream end of the intake pipe 32 is connected to the exhaust flow path of the heat exchanger 31, and the exhaust pipe 33 is connected to the downstream side thereof. The downstream end of the exhaust pipe 33 penetrates the outer wall heat insulating panel and opens to the outside. The exhaust pipe 33 discharges the air sucked from the corridor 13 to the outside.

The upstream end of the suction pipe 34 penetrates the outer wall heat insulating panel and opens to the outside. The suction pipe 34 sucks the outside air. The downstream end of the suction pipe 34 is connected to the suction flow path of the heat exchanger 31, and the discharge pipe 35 is connected to the downstream side thereof. The downstream end of the discharge pipe 35 is open in the cabin back space 6. The discharge pipe 35 discharges the air sucked from the outside into the cabin back space 6.

A ventilation means 36 is provided on the ceiling 5 of the corridor 13. The blower means 36 is composed of a blower machine, sucks air in the corridor 13, and blows air into the space 6 behind the cabin.

Blowers 21 are provided on the ceilings 5 and 5 of the living rooms 12 and 12 directly below the cabin back space 6. The ventilation means 21 directly supplies the conditioned air inside the cabin back space 6 to the living room 12. The air blowing means 21 is provided on the ceiling 5 so as to face the living room 12, and the air in the cabin back space 6 can be blown to the living room 12 without a duct.

At the upper part of the duct space 14, air blowing means 22 for supplying conditioned air to the living rooms 10 and 10 on the first floor is provided. A ventilation duct 23 extending to the living room 10 is connected to the ventilation means 22. The air duct 23 is step-heat-treated so that the thermal energy of the conditioned air inside is not lost. The air duct 23 passes through the duct space 14 and the attic space 11 and extends above the living room 10, and the downstream end of the air duct 23 is open facing the living room 10.

Next, the procedure and operation / effect of the ventilation / air conditioning system having the above configuration will be described. When using such a ventilation air conditioning system, both the air conditioner 20 and the ventilation unit 30 are operated.

By operating the air conditioner 20, the air in the cabin back space 6 is air-conditioned to a comfortable temperature. At this time, since the cabin back space 6 has an airtight heat insulating structure, it is difficult for heat energy to leak to the outside, and energy loss can be suppressed. Further, since the chamber space is created by using the cabin back space 6 which is originally an airtight heat insulating structure, it is not necessary to perform the airtight construction or the heat insulating construction as the chamber space. Therefore, the construction cost of the ventilation and air conditioning system can be suppressed. Further, since the cabin back space 6 is used as it is, the space can be effectively used without crushing the storage space.

Further, since the cabin back space 6 is used as the chamber space, the supply of conditioned air to the living room 12 directly below the cabin back space 6 can be directly sent by the air blowing means 21 without using a duct. That is, since the conditioned air can be supplied to the living room 12 directly under the cabin back space 6 without using a duct, the construction labor and the construction cost can be reduced. Generally, the construction of ducts is performed by an air conditioner, but since the construction coordination with the interior industry is complicated, the effect of reducing the installation of ducts is great. Furthermore, since it is not necessary to replace the duct at the time of maintenance and renewal, it is possible to achieve cost saving by saving construction.

Since the ventilation unit 30 includes the heat exchanger 31, the heat energy of the conditioned air (cold air in summer and warm air in winter) is unlikely to be released to the outside of the building. Therefore, clean air-conditioned air can be supplied to the room while performing efficient air-conditioning with little energy loss.

Further, the ventilation unit 30 sucks the air discharged to the outside from the corridor 13 directly below the cabin back space 6, and discharges the air sucked from the outside into the cabin back space 6. That is, since the air is sucked from the space other than the living room 12 without directly sucking the conditioned air from the living room 12, the air conditioning efficiency can be improved.

Further, in the present embodiment, since the heat insulating roof 2 does not have an opening, there is no risk of water leakage or deterioration of airtightness.

Although the embodiment for carrying out the present invention has been described above, the present invention is not limited to the above-described embodiment, and the design can be appropriately changed without departing from the spirit of the present invention. For example, in the above-described embodiment, the ventilation unit 30 sucks the air to be discharged to the outside from the corridor 13 directly below the cabin back space 6, but is not limited to this. If it is a space other than the air-conditioned living room 12, air may be sucked from the staircase connected to the corridor 13 or the ceiling of the storage case. In this way, the air conditioning efficiency can be improved as in the case of sucking air from the corridor 13.

Further, in the above-described embodiment, the cabin back space 6 is partitioned from the outside air by the heat insulating roof 2 and the upper end portion of the heat insulating wall 3, but the space 6 is not limited to this. If the roof slope is large and the height of the cabin space can be secured only inside the roof, the cabin space may be divided by the roof and the ceiling.

1 Detached house (building)
2 Insulated roof 5 Ceiling 6 Cabin back space 12 Living room 13 Corridor 20 Air conditioner 21 Blower means 30 Ventilation unit 31 Heat exchanger

The present invention for solving the above-mentioned problems is a ventilation and air-conditioning system for a building provided with a hut back space partitioned by airtight heat insulation using a roof heat insulating panel, and an air conditioner and ventilation provided in the hut back space. It has a unit. The air conditioner air-conditions the air in the entire internal space of the cabin back space, the cabin back space is used as a chamber space for storing air-conditioned air, and the ventilation unit is used for exhaust air discharged from the inside of the building to the outside. It is characterized by being equipped with a heat exchanger that transfers heat energy from the outside to intake air that is sucked into the building.

Claims (3)

A ventilation and air conditioning system for a building with a cabin back space partitioned by airtight insulation using roof insulation panels.
It is equipped with an air conditioner and a ventilation unit provided in the space behind the cabin.
The air conditioner air-conditions the air inside the cabin back space, and the cabin back space is used as a chamber space for storing air-conditioned air.
The ventilation unit is a ventilation and air conditioning system including a heat exchanger that transfers the thermal energy of the exhaust air discharged from the inside of the building to the outside to the intake air sucked into the building from the outside. Further equipped with a ventilation means provided on the ceiling of the living room directly under the space behind the cabin,
The ventilation and air conditioning system according to claim 1, wherein the ventilation means directly supplies the air conditioning air inside the cabin back space to the living room. The ventilation unit according to claim 1 or claim, wherein the air discharged to the outside is sucked from the corridor or the staircase directly below the cabin back space, and the air sucked from the outside is discharged to the cabin back space. The ventilation air conditioning system according to 2.

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