JPH11294839A - Whole building air conditioning and ventilating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reconcile comfortableness and energy saving property. SOLUTION: This system is composed of a main duct 13 for air conditioning which is provided with an indoor air conditioner 11 for sucking indoor air from a common space 1 and heating or cooling it, in its duct passage, a main duct 17 for ventilation which has an outside air intake 23 and is provided with a sensible heat exchanging fan 15, in its duct passage, a sub duct 19 which is connected to each passage of the main duct 13 for air conditioning and the main duct 17 for ventilation and communicates mutually with the aperture 5 provided in each room, and flow rate regulating mechanisms 31 and 33 which control the flow rate of air from the main duct 13 for air conditioning to the sub duct 19 or from the main duct 17 for ventilation to the sub duct 19, and each room is supplied with air for air conditioning or air for ventilation by the opening and closing control of the flow rate regulating mechanisms 31 and 33.

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 a whole building.

[0002]

2. Description of the Related Art An outline of a general air-conditioning ventilation system generally used is to send outside air heat-exchanged by an air-conditioning ventilation fan to an indoor air conditioner, for example, to blow hot air to each room through a duct during a heating operation. It performs air conditioning and ventilation in each room.

[0003] Since this whole building air-conditioning ventilation system is based on continuous air-conditioning operation, for example, dew does not occur on windows and wall surfaces of each room in a house during heating.

[0004]

However, due to the demands of the times, rooms with no people are required from the viewpoint of energy saving.
A request has been made to stop driving the room. Therefore, the temperature of the room whose operation has been stopped decreases. Here, since the humidity in the house is constant, when the temperature of the room decreases, dew condensation occurs particularly in a low temperature portion such as a window glass.

[0005] The formation of dew is not preferable from the viewpoint of hygiene and the life of the house, and is also undesirable from the viewpoint of health because it easily becomes a hotbed of mold and mites.

Accordingly, the present invention does not cause dew condensation even when air conditioning in a room is stopped.
An object of the present invention is to provide an air conditioning and ventilation system for a whole building that achieves both comfort and energy saving.

[0007]

According to a first aspect of the present invention, there is provided an indoor air conditioner for heating or cooling indoor air sucked from a common space. A main duct for air conditioning, a main duct for ventilation having an outside air intake, and a sensible heat exchange fan provided in the flow path, and each room connected to each flow path of the main duct for air conditioning and the main duct for ventilation, And a flow control mechanism for controlling the flow of air from the air conditioning main duct to the sub duct, or from the ventilation main duct to the sub duct.

[0008] According to the air conditioning and ventilation system of this structure, fresh and dry air introduced from the outside air is heated by the heat energy recovered from the exhausted indoor air, and the air is used for air conditioning and ventilation in the room where the air conditioning operation is stopped. Therefore, it is possible to prevent dew condensation in the room without consuming extra energy. In addition, since the air-conditioning air and the ventilation air blown out to each room are controlled simultaneously or independently, it is possible to provide a building-wide air-conditioning system excellent in comfort and energy saving.

According to a second aspect of the present invention, when an operation stop command is issued in a certain room during the air-conditioning ventilation operation, the flow regulating mechanism leading to the room is closed to close the air-conditioning air and the ventilation. When the supply of air is stopped and the detection of the room temperature is continued, when the room temperature becomes lower than the temperature of the ventilation air passing through the main ventilation duct, the flow rate at the junction between the main ventilation duct and the sub duct is adjusted. The mechanism was opened to supply ventilation air to the room where the operation stop command was issued.

[0010] According to this configuration, ventilation air is sent into the room when the room temperature of the room receiving the operation stop command becomes equal to the ventilation air temperature, so that dew condensation in the room can be prevented with minimum energy. Can be planned.

According to a third aspect of the present invention, when an operation is stopped in a certain room during the air-conditioning ventilation operation,
In the room, the air-conditioning ventilation volume is controlled by a flow rate adjusting mechanism so as to have a predetermined temperature difference from the set temperature.

According to this configuration, even if the consumer moves to the room in which the air-conditioning operation is stopped, the user does not feel a heat shock and can maintain a state in which dew condensation does not occur in the room.

According to a fourth aspect of the present invention, the air intake of the sensible heat exchange air fan is provided in a toilet or a washroom.

According to this configuration, since the steam is discharged to the outside, the steam does not diffuse into the house, and the occurrence of dew condensation can be prevented. In addition, the toilet or the washroom is secondarily warmed, so that it is possible to reduce the feeling of heat shock even if the resident goes in and out.

According to a fifth aspect of the present invention, in a room in which the room temperature is equal to or more than a predetermined temperature difference from the set temperature during the air-conditioning ventilation operation, the flow rate of the main air-conditioning duct connected to the room is adjusted. The mechanism is closed, the flow control mechanism on the main ventilation duct side is opened, and only ventilation air is supplied.

According to the configuration of the present invention, the surplus heat energy due to the external conditions (solar radiation, sunshine, etc.) is effectively used, so that energy saving in the air-conditioning ventilation operation can be realized.

According to a sixth aspect of the present invention, the presence or absence of a person in each room is detected during the air-conditioning ventilation operation. Open the flow control mechanism on the ventilation main duct side to supply only ventilation air.

According to the configuration of the present invention, it is detected whether or not there is a resident in the room, and only the ventilation air is supplied to the room where no resident is present, so that waste of energy can be reduced.

According to the present invention, the presence or absence of a person in each room is detected during the air-conditioning / ventilation operation. The amount of air-conditioning ventilation is controlled by a flow control mechanism.

According to this configuration, waste of energy in a room where no resident is present can be omitted, and even when the resident moves to a room where the air conditioning operation is stopped, no heat shock is felt.

According to the present invention, the presence or absence of a person in each room is detected during the air-conditioning and ventilation operation, and the flow rate of the ventilation main duct is adjusted based on the amount of activity or the number of people. Controls the flow of the mechanism.

According to this configuration, a required amount of ventilation can be provided to the room according to the amount of activity or the number of people.

According to a ninth aspect of the present invention, a blower capable of blowing air in a forward or reverse direction is provided at the opening of each room.

According to this configuration, the surplus heat energy in one room due to external conditions can be transferred to another room, so that the energy can be effectively used. Further, the blower acts as a booster and passes through the sub duct. The amount of air to be blown increases, and the temperature can be adjusted in a short time.

According to a tenth aspect of the present invention,
When a stop command for stopping the whole building air conditioning ventilation system is issued during the air conditioning ventilation operation, the air conditioner is stopped, and then the sensible heat exchange air fan is delayed and stopped.

According to this configuration, indoor air having a high humidity can be replaced with dry air, and thereafter, even if the temperature of the house decreases, dew condensation can be prevented in the house.

Further, according to claim 11 of the present invention,
The time for delaying the sensible heat exchange fan is set based on the time calculated from the air volume / ventilation of the house.

According to this configuration, the delay time for replacing indoor air with dry air can be set to an optimum value.
Prevent dew condensation with minimum energy.

According to a twelfth aspect of the present invention,
Each room is provided with a display device for displaying that the sensible heat exchange fan is performing a delay operation.

According to this configuration, the normal operation of the system can be transmitted to the consumer by displaying the delay operation of the device.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.

(First Embodiment) In FIG. 1, reference numeral 1 denotes a common space (for example, a corridor). An opening 5 for air conditioning or ventilation is provided on the ceiling of the first, second, third, and fourth rooms a1, a2, a3, and a4, and a door 9 having a ventilation hole 7 at a part of the entrance is provided. Each room a1, a2
a3, a4 communicate with the common space through the vent 7.

An air conditioning main duct 13 and a ventilation main duct 17 are arranged behind the ceiling of the common space 1, and one end of the air conditioning main duct 13 is connected to a duct passage at one end. A machine 11 is provided. In addition, a sensible heat exchange ventilation fan 15 connected to the duct passage is provided at one end of the ventilation main duct 17.

The main duct 13 for air conditioning and the main duct 17 for ventilation are connected to the sub ducts 1 communicating with the openings 5 provided in the ceilings a1, a2, a3 and a4 of each room.
9, the air-conditioning air from the air-conditioning main duct 13 and the ventilation air from the ventilation main duct 17 are passed through the sub ducts 19 and the openings 5 to the respective rooms a1, a.
2, a3, and a4.

The indoor air conditioner 11 is an indoor heat exchanger that forms a part of a refrigeration cycle (not shown), functions as an evaporator during cooling operation, and has a suction port 21 provided in the common space 1. It exchanges heat with the air sucked in from outside and sends out cool air. On the other hand, at the time of heating operation, it functions as a condenser, exchanges heat with the air sucked from the suction port 21, and sends out warm air as air-conditioning air into the air-conditioning main duct 13.

The sensible heat exchange fan 15 includes an outside air intake 23 for supplying fresh outside air, an indoor intake 25 for supplying air from the common space 1 in the house, and an indoor intake 2
5 has a discharge outlet 27 for exchanging air supplied from 5 with sensible heat and then discharging the air to the outside. When the air from the outside air intake 23 flows to the ventilation main duct 17 as shown by the arrow,
In the sensible heat exchange section 29, heat exchange is performed with warm air flowing from the indoor inlet 25 to the outlet 27 for discharge.

During the cooling operation, the transfer of heat in the sensible heat exchange unit 29 is opposite to that during the heating operation.

On the other hand, a flow rate adjusting mechanism 31 for air conditioning is provided at a joint portion between each sub duct 19 connected to and connected to the main duct 13 for air conditioning. A flow control mechanism 33 for ventilation is provided on each sub duct 19 side connected to and communicated with the main duct 17 for ventilation, and the flow control mechanisms 31, 33 for air conditioning and ventilation are respectively provided.
The opening degree is controlled to a predetermined degree based on a signal from the control unit 35, and the flow rate flowing through the duct passage is adjusted.

An operation switch 37 is provided in each of the rooms a1, a2, a3, and a4. Setting information (eg, target set temperature) input from the operation switch 37 and a signal from a room temperature sensor (not shown) in each room are provided. The flow rate of the flow rate adjusting mechanism 31 for air conditioning and the flow rate adjusting mechanism 33 for ventilation is controlled based on.

According to the whole building air-conditioning ventilation system configured as above, during the heating operation, for example, when the room temperature of the fourth room a4 is lower than the target set temperature, the control unit 3
Based on the signal from 5, the ventilation flow adjustment mechanism 33 and the air conditioning flow adjustment mechanism 31 communicating with the fourth room a4 are opened.

The ventilation air introduced from the sensible heat exchange air fan 29 is supplied from the ventilation main duct 17 to the flow control mechanism 3.
3 to the sub duct 19. At the same time, the air-conditioning air warmed by the indoor air conditioner 11 is supplied from the air-conditioning main duct 13 via the flow control mechanism 31 to the sub-duct 1.
9

For this reason, the air for air-conditioning and the air for ventilation are mixed in the sub duct 19 and supplied from the opening 5 to the fourth room a4. The air supplied to the fourth room a4 flows into the common space 1 through the vent 7 of the door 9 after warming the room a4, and a part of the outflow air is used for the indoor air conditioner 1
Returning to 1, the remaining air is sent to the sensible heat exchange fan 29.
The air released from the sensible heat exchange fan 29 to the outside is discharged to the outside after performing heat exchange with fresh air taken in from the outside.

Thereafter, when the room temperature of the fourth room a4 reaches the target set temperature, the air-conditioning flow control mechanism 31 is closed, and only fresh air flows from the ventilation main duct 17 into the fourth room a4. It is sent to the sub duct 19.

[0044] Air-conditioning ventilation (heating) in the house is performed by such a flow of air.

It is to be noted that the flow rate adjusting mechanism 31 for air conditioning may not be completely closed but may be controlled so as to slightly flow the flow rate by adjusting the opening degree (adjusting the cross-sectional area of the flow path). Can be maintained.

Also, during the air-conditioning ventilation operation, for example, when the consumer leaves the third room a3, the operation switch 37 of the room a3 is operated to input the operation stop command, and the operation stop command is input, as shown in FIG. As shown, only the air-conditioning flow rate adjusting mechanism 31 provided on the side of the sub duct 19 communicating with the third room a3 is closed. As a result, only the ventilation air is supplied from the opening 5 to the third room a3 via the flow control mechanism 33 for ventilation in the open state. At this time, in the third room a3, although the temperature is lower than the air-conditioning air flowing through the main air-conditioning duct 13, the temperature is higher than the outside air, and the air (ventilation air) that is dryer than the indoor humidity flows. . Thereby, the third room a3 can maintain a state where the humidity is lower than the other rooms and the temperature is higher than the outside air. Now, assuming that the outside air temperature is 0 ° C., the indoor temperature is 20 ° C., 40%, and the efficiency of the sensible heat exchange unit 29 is 70%, the ventilation air is warmed to 14 ° C., flows into the room, warms the room and decreases several degrees, for example, by 10 ° C. ° C, and flows out to the common space (corridor) through the ventilation hole 7 of the door 9. The room temperature of the third room a3 is about 12 ° C., and the temperature of the window whose temperature drops the most is about 8 ° C. Since the dew point temperature of the indoor air is 5.5 ° C., no dew condensation occurs on the windows. In addition, there is no need to introduce air conditioning air to prevent dew condensation, and no extra energy is consumed.

(Second Embodiment) FIG. 3 shows that, for example, during the heating operation, after the air-conditioning operation of a certain room is stopped, when the temperature of the room decreases with time and reaches the ventilation air temperature, the ventilation air is automatically turned on. 9 shows a second embodiment in which the operation can be started by air.

That is, the first, second, third and fourth rooms a
1, a2, a3, and a4 are provided with operation switches 3 for stopping operation.
7, a room temperature sensor 43 for detecting room temperature is provided, and a ventilation temperature sensor 45 for detecting the temperature of ventilation air flowing in the ventilation main duct 17 is provided in the ventilation main duct 17. The temperature information from the room temperature sensor 43 and the temperature information from the ventilation temperature sensor 45 are input to the control unit 47.

The other components are the same as those shown in FIG.

Therefore, according to the second embodiment, for example, during the heating operation, when the user moves away from the third room a3, the operation switch 37 of the room a3 is operated to provide air conditioning and ventilation. Each flow rate adjusting mechanism 31, 33
Is closed. Thereby, the warm air from the opening 5 is stopped, and the room temperature of the stopped room a3 is detected by the room temperature sensor 4.
3 is monitored.

When the room temperature falls with the passage of time and the room temperature becomes lower than the ventilation air, the control unit 47 opens the ventilation flow control mechanism 33 provided in the sub duct 19 leading to the third room a3. The ventilation air is supplied to the third room a3. Thereby, the third room a3
Is filled with air having a low humidity and a higher temperature than the outside air, so that the room can be prevented from dew condensation.

(Third Embodiment) In the above-described second embodiment, the temperature of the room in which the air-conditioning operation has been stopped can be maintained at a temperature exceeding the dew point temperature, but the room temperature is significantly different from the set temperature of the room. However, when a consumer moves to a room that is not air-conditioned, he or she feels a heat shock, which is not preferable in terms of health and comfort. A third embodiment in which this is improved will be described.

In FIG. 3, when the consumer leaves the third room a3 during the air ventilation operation, the operation switch 37 is operated to input a command to stop the operation. As a result, the flow adjusting mechanism 31 at the junction between the air conditioning main duct 13 and the sub duct 19 is closed. As a result, the supply of the air-conditioning air to the third room a3 is stopped, and only the ventilation air is supplied.

The control unit 47 controls the room temperature of the room
3, the upper limit of the temperature at which the consumer does not feel a heat shock, for example, about 5 deg for heating, and 3 for cooling.
deg, and when the temperature difference becomes equal to or more than this temperature difference, the air-conditioning flow rate adjusting mechanism 31 communicating with the third room is opened, and the room temperature of the third room a3 becomes the temperature difference or a temperature difference that becomes slightly smaller. Control.

Therefore, even if the consumer moves to the room where the operation is stopped, there is no heat shock and the room where the operation has been performed is kept free from dew condensation. Can be prevented, and a favorable state in appearance and health can be maintained.

(Fourth Embodiment) A fourth embodiment in which water vapor generated in a tray and a lavatory is prevented from diffusing and condensing throughout the house will be described.

As shown in FIG. 4, the indoor intake 53 extended from the sensible heat exchange air fan 15 via the duct 51 is changed from the common space 1 such as a corridor to a toilet or a washroom that generates much steam. It is. The other components are the same as those shown in FIG.

That is, each room is heated, and a part of the air flowing out of the ventilating opening 7 of the door 9 into the common space 1 such as a corridor returns to the indoor air conditioner 11, and the remaining air flows from the common space 1 through the door 49. Passes through the toilet and the washroom a5, and is sent to the indoor intake 53 of the sensible heat exchange air fan 15 provided in the washroom a5. Here, since a large amount of water vapor generated in the toilet and the washroom a5 is taken in from the indoor intake 53 and discharged to the outside, the water vapor does not diffuse into the house, and the occurrence of dew condensation can be prevented.

Further, since the air after warming each room is supplied to the tray and the lavatory a5 via the common space 1, the heat shock is not felt even if the consumer goes in and out of the room.

(Fifth Embodiment) The room temperature of a certain room becomes excessive with respect to the set temperature due to external conditions (solar radiation, sunshine, etc.) (below the set temperature during heating and below the set temperature during cooling). A fifth embodiment will be described in which surplus energy in the room is used for another room.

The other components are the same as those shown in FIG.

In FIG. 3, during heating, the second room a2,
The third room a3 is affected by solar radiation, and its room temperature is equal to or higher than the set temperature. On the other hand, the temperatures of the first room a1 and the third room a3 are lower than the set temperature due to the influence of the shade.

In this case, the second room a2 and the third room a
Since the room temperature 3 greatly exceeds the set temperature under the influence of the solar radiation, the air-conditioning flow control mechanisms 31 communicating with the second room a2 and the third room a3 are closed, and the ventilation main duct 17 is closed. Only the supplied ventilation air is used for the second
To the room a2 and the third room a3. As for the flow rate of the ventilation air, the temperature of the room is constantly monitored, and the opening degree of the flow rate adjustment mechanism 33 for ventilation is controlled so that the room temperature matches the set temperature to increase the flow rate.

The ventilation air flowing into the second room a2 and the third room a3 whose room temperature is equal to or higher than the set temperature absorbs heat energy there and flows out to the common space 1,
The air enters the indoor air conditioner 11 having the suction port 21 therein, and is sent to the first room a1 and the fourth room a4 whose room temperature is equal to or lower than the set temperature via the air conditioner main duct 13 and the sub duct 19, Room heating is done.

In this configuration, since the surplus energy due to the solar radiation is transferred to another room for effective use, the capacity of the indoor air conditioner 11 can be reduced accordingly. Further, the temperature of the room requiring the air conditioning capability can be quickly brought close to the set temperature.

In the case of cooling, the temperature of the room in the shade may be lower than the set temperature. In this case, as in the case of the heating, the air-conditioning flow rate adjusting mechanism 31 leading to the room having the temperature lower than the set temperature is also provided. At the same time, the ventilation may be increased by adjusting the opening of the flow rate adjusting mechanism 33 for ventilation so that the room temperature of the room coincides with the set temperature.

Therefore, it is possible to effectively use the surplus heat energy due to the external conditions (solar radiation, sunshine, etc.) and to save energy in the air-conditioning ventilation operation. Further, in the control in which the followability of the room temperature is emphasized, the apparent air-conditioning capacity increases, so that the room temperature rises quickly and a comfortable air-conditioning environment can be realized.

(Sixth Embodiment) A motion sensor for detecting the presence or absence of a person is installed in each room.
A description will be given of a fifth embodiment in which a room where no person is present supplies only ventilation air.

As shown in FIG. 5, each room a1, a2, a
A human sensor 55 for detecting that a consumer is in the room is disposed on the walls 3 and a4. When detecting that there is no person in the room, the motion sensor 55 sends a signal to the control unit 57. This controls the air-conditioning flow adjustment mechanism 31 and the ventilation flow adjustment mechanism 33 that lead to a room where no one is present.

The other components are the same as those shown in FIG. 3, and thus are denoted by the same reference numerals, and detailed description is omitted.

According to this embodiment, the respective rooms a1, a2, a3, a4 during the air-conditioning ventilation operation such as the heating operation.
Is detected, for example, if it is detected that there is no person in the third room a3, the air-conditioning flow control mechanism 31 communicating with the third room a3 is closed, and the ventilation flow is detected. The adjustment mechanism 33 is opened.

Thus, in a room where there is no living person, only air for ventilation is supplied, so that energy saving operation is possible. Further, fresh and dry outside air heated by the sensible heat exchange fan can be sufficiently taken into the room, so that dew condensation in the room can be prevented, and a housing environment free of mold and mite can be provided.

(Seventh Embodiment) In a room in which no person is detected, air conditioning or ventilation is controlled so as to have a predetermined temperature difference from a set temperature. Will be described.

The components are the same as those in FIG. 5, and a detailed description will be omitted.

In this embodiment, during the air-conditioning / ventilation operation, the presence of a person in the third room a3 is detected by the human sensor 55, and the air-conditioning flow rate adjusting mechanism 31 communicating with the third room a3 is operated. It is closed, and the flow control mechanism 33 for ventilation is opened. As a result, the supply of the air-conditioning air to the third room a3 is stopped, and only the ventilation air is supplied.

The control unit 57 detects the room temperature of the room
3, the upper limit of the temperature at which the consumer does not feel a heat shock, for example, about 5 deg for heating, and 3 for cooling.
deg, and when this temperature difference is exceeded, the third
The air-conditioning flow control mechanism 31 leading to the room is opened, and the third
The room temperature of the room a3 is controlled so as to be the temperature difference or a slightly smaller temperature difference.

When the resident has moved to the third room a3, the presence of a person is detected by the human sensor 55, and the operation is returned to the normal air-conditioning ventilation mode. That is,
The air-conditioning flow rate adjusting mechanism 31 and the ventilation flow rate adjusting mechanism 33 communicating with the third room are respectively opened to control the room temperature to the set temperature.

Therefore, even if a consumer moves to a room where no one is stopped, no heat shock is felt, and the moved room is kept free from dew condensation. Therefore, it is possible to prevent the occurrence of molds and ticks, and to maintain a favorable housing environment in appearance and health.

(Eighth Embodiment) An eighth embodiment will be described in which a required ventilation volume of a room can be supplied according to the activity amount or the number of persons gathered in a room.

The components are the same as those shown in FIG. 5, and a detailed description thereof will be omitted.

In this embodiment, the human sensor 55 detects the amount of activity and the number of people in the room. The information of the human sensor 55 is sent to the control unit 57, and the control unit 57 controls the operation of the ventilation flow rate adjusting mechanism 33 leading to the room in accordance with the information (the amount of activity or the number of people). Increase ventilation.

Here, the increase amount of the ventilation air is set as follows.

The ventilation volume is converted to the corresponding number of people. However,
If the normal work becomes heavy work, it is converted so that the ventilation rate is increased by 50%.

For example, the ventilation volume per person is 20
m3 / h. Therefore, when two people are playing a game in a certain room, the ventilation volume is 40 m3 / h (for two people), and when one person is performing heavy work such as pattern change, the ventilation volume is 30 m3 / h. h (independent heavy work) to increase the ventilation.

Therefore, when a large number of people gather in a room or work hard, the ventilation with fresh outside air is insufficient with a normal ventilation rate, carbon dioxide and odor increase, and the cleanliness of the indoor air decreases. Since the required ventilation can be supplied according to the amount of human activity or the number of persons, it is possible to prevent indoor air from being stained.

(Ninth Embodiment) According to the conditions of the external world,
A ninth embodiment in which surplus thermal energy in a certain room is supplied to a room that needs energy will be described.

As shown in FIG. 6, each room a1, a2, a
A blower 59 capable of backflow in the forward direction (sending the air in the sub duct to the room) or in the reverse direction (sending the room air to the sub duct) is provided in the opening at 3 and a4. Specifically, the blower 59 can control the blowing direction by rotating the fan rotation forward or backward. Further, the blower 59 itself may be configured to be rotatable to change the blowing direction.

The other components are the same as those shown in FIG. 3, and thus are denoted by the same reference numerals and detailed description thereof will be omitted.

During the heating operation, the room temperature of the room receiving the solar radiation rises above the set temperature. For example, as shown in FIG. 6, the second room a2 and the third room a3 face south and are easily affected by solar radiation. Room temperature sensor 43 is a
2, the room temperature of a3 is constantly monitored, and when a state in which the signal (room temperature information) detected by the room temperature sensor 43 exceeds the set temperature for a predetermined time continues, the control unit 61 sets the flow rate for ventilation to each of the rooms a2 and a3. The adjusting mechanisms 33 are closed. Further, at the same time as opening the air conditioning flow control mechanism 31 communicating with each of the rooms a2 and a3, the rotation of the fan of the blower 59 is reversed, and the room air is sucked from the opening 5 into the duct passage. The air flowing from the opening 5 is supplied to the sub duct 19 and the flow control mechanism 3.
1. The air is sent to the air conditioning main duct 13, where it is combined with the air conditioning air warmed by the indoor air conditioner 11, and supplied to the first room a1 and the fourth room a4 that require heating.
The amount of indoor air sucked into the sub duct 19 is determined based on a signal (room temperature information) from the room temperature sensor 43.
1, 33 and the blower 59 are controlled by the control unit 61, and the room temperature of the room is maintained at the set temperature.

On the other hand, the same operation can be performed during cooling. That is, the first room a1 and the fourth room a4 facing north.
Then, the room becomes too cold due to the influence of the sun and the room temperature falls below the set temperature. The surplus energy is reversed by reversing the rotation of the fan of the blower 59, and the cool air flowing through the opening 5 is sent to the sub duct 19, the flow rate adjusting mechanism 31, and the main air conditioning duct 13, where the indoor air conditioner 1
Combined with the air-conditioning air cooled in step 1
Is supplied to the room a2 and the third room a3.

Therefore, the surplus heat energy in one room due to the external condition is transferred to another room, so that the energy can be effectively used, and the blower normally acts as a booster when blowing air into the room. Therefore, the flow rate passing through the sub duct is increased, and quick temperature adjustment can be performed in a short time.

(Tenth Embodiment) When a consumer leaves a house for traveling, going out, or the like, the whole building air-conditioning ventilation system may be stopped. At this time, if all the devices are stopped at the same time, dew condensation occurs due to the water vapor remaining in the house and the temperature drop in the room. A tenth embodiment that prevents the occurrence of condensation will be described.

The components are the same as those in FIGS. 1 to 6, and a detailed description is omitted.

In FIG. 1, when the user is away from the house, the user operates the operation switch 37 to input a whole building stop command for stopping the whole building air conditioning and ventilation system. The control unit 35 that has received the command to stop the whole building stops only the sensible heat exchange air fan 15 with a delay for a predetermined time, but sequentially stops the devices as follows.

First, the indoor air conditioner 11 is stopped. Then, all air conditioning flow control mechanisms 31 leading to each room
Close. Air conditioning to each room is stopped. At this time, the flow control mechanism 33 for ventilation remains open, and only the ventilation air is supplied to each room. And sensible heat exchange fan 1
5 is stopped after a certain time delay.

As a result, even if the indoor air conditioner 11 is stopped, the sensible heat exchange air fan 15 continues to operate for a certain period of time. And is discharged outside. For this reason, after the operation is stopped, each room a1, a2, a3, a
4, since the ventilation air heated and dried by the sensible heat exchange air unit 29 is supplied for a certain period of time, no dew condensation occurs even if the room temperature drops after the sensible heat exchange air unit 29 stops.

The delay time for stopping the sensible heat exchange air fan 15 can be effectively prevented even if the temperature of the house falls by setting the time for discharging the air in the room and replacing it with dry outside air. . For this reason, it is preferable to set the delay time required for the prevention of dew condensation by the time obtained by dividing the air volume (volume) of the house by the ventilation volume of the sensible heat exchange air fan 15.

Further, even if the system is stopped, the sensible heat exchange air fan 15 performs the delay operation, so that it may give a strange feeling to the consumer or a feeling that a failure has occurred.
Therefore, it is preferable to provide a display device 49 such as a display lamp near the opening 5 as shown in FIG.

As shown in FIG. 8, a control operation panel 41 for controlling the entire system may be provided, and a display device 39 may be provided on the control operation panel 41.

[0100]

As described above, according to the air conditioning and ventilation system for a building according to the present invention, the fresh and dry air introduced from the outside air is heated by the heat energy recovered from the exhausted indoor air, and the air is heated. Since it is used for air-conditioning ventilation of the room in which the air-conditioning operation is stopped, it is possible to prevent dew condensation in the room without consuming extra energy.

Further, since the air-conditioning air and the ventilation air blown out to each room are controlled respectively, it is possible to provide a building-wide air-conditioning system excellent in comfort and energy saving.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing a whole building air-conditioning ventilation system according to the present invention.

FIG. 2 is a schematic explanatory diagram similar to FIG. 1 showing an operation diagram of a flow rate adjusting mechanism.

FIG. 3 is a schematic explanatory view showing a whole building air conditioning and ventilation system in which a room temperature sensor is provided in each room.

FIG. 4 is a schematic explanatory view showing a whole-room air-conditioning ventilation system in which an indoor intake of a sensible heat exchange fan is provided in a washroom and a toilet.

FIG. 5 is a schematic explanatory diagram showing a whole building air conditioning and ventilation system in which a human sensor is provided in each room in addition to a room temperature sensor.

FIG. 6 is a schematic explanatory diagram showing a building-wide air-conditioning and ventilation system in which a blower capable of blowing air in a forward or reverse direction is provided at an opening of each room.

FIG. 7 is an external perspective view of the display device during a delay operation of ventilation air.

FIG. 8 is an external view of a control operation panel provided with a display device that indicates a delay operation of ventilation air.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Common space 5 Opening 11 Indoor air conditioner 13 Air conditioning main duct 15 Sensible heat exchange air fan 17 Ventilation main duct 19 Sub duct 23 Outside air intake 25 Indoor intake 27 Outlet for discharge 31, 33 Flow control mechanism

Claims (12)

[Claims] 1. A main duct for air conditioning provided in a duct flow path with an indoor air conditioner for heating or cooling indoor air sucked from a common space, and an outside air intake, and a sensible heat exchange air fan in a duct passage. The provided main duct for ventilation, the sub duct connected to each flow path of the main duct for air conditioning and the main duct for ventilation, and communicating with the opening provided in each room, from the main duct for air conditioning to the sub duct, Alternatively, the whole building air conditioning / ventilation system comprises a flow rate adjusting mechanism for controlling a flow of air from the ventilation main duct to the sub duct. 2. When an operation stop command is issued in a certain room during air-conditioning ventilation operation, a flow control mechanism connected to the room is closed to stop supply of air-conditioning air and ventilation air, and to detect a room temperature. Continuing, when the room temperature falls below the temperature of the ventilation air passing through the main ventilation duct,
2. The air-conditioning and ventilation system for a whole building according to claim 1, wherein a flow control mechanism at a junction between the main duct for ventilation and the sub duct is opened to supply ventilation air to the room where the operation stop command is issued. . 3. When an operation stop command is issued in a room during an air-conditioning ventilation operation, the air-conditioning ventilation amount of the room is controlled by a flow rate adjusting mechanism so as to have a predetermined temperature difference from a set temperature. The whole building air-conditioning ventilation system according to claim 1, characterized in that: 4. The air conditioning and ventilation system for a whole building according to claim 1, wherein the indoor air intake of the sensible heat exchange fan is provided in a toilet or a washroom. 5. In a room where the room temperature is equal to or more than a predetermined temperature difference from a set temperature during the air-conditioning ventilation operation, a flow control mechanism on an air-conditioning main duct side that is connected to the room is closed, and a flow rate on a ventilation main duct side is closed. 2. The air-conditioning / ventilation system for a whole building according to claim 1, wherein the adjustment mechanism is opened to supply only ventilation air. 6. During air-conditioning ventilation operation, the presence or absence of a person in each room is detected, and in a room where no person is present, the flow control mechanism on the air-conditioning main duct side is closed, and the flow control mechanism on the ventilation main duct side is opened. The whole building air conditioning ventilation system according to claim 1, wherein only ventilation air is supplied. 7. During air-conditioning / ventilation operation, the presence / absence of a person in each room is detected, and in a room without a person, the air-conditioning / ventilation amount is controlled by a flow rate adjusting mechanism so as to have a predetermined temperature difference from a set temperature. 2. The air conditioning and ventilation system for a whole building according to claim 1, wherein 8. An air-conditioning / ventilation operation, wherein the presence or absence of a person in each room is detected, and the flow rate of the flow rate adjusting mechanism on the main duct side for ventilation is controlled based on the activity amount or the number of people. The whole building air-conditioning ventilation system according to claim 1. 9. The air conditioning and ventilation system for a whole building according to claim 1, wherein a blower capable of blowing air in a forward or reverse direction is provided at an opening of each room. 10. A sensible heat exchange fan is delayed and stopped when a stop command for stopping the whole building air-conditioning ventilation system is issued during the air-conditioning ventilation operation. 1. The air conditioning and ventilation system for the entire building according to 1. 11. The air conditioning and ventilation system for a whole building according to claim 10, wherein the time for delaying the sensible heat exchange air fan is set based on a time calculated from the air volume / ventilation volume of the house. 12. The whole building air conditioning and ventilation system according to claim 10, wherein each room is provided with a display device for displaying that the sensible heat exchange air fan is performing a delay operation.