JP2630074B2 - Ventilation 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 ventilation air conditioner for ventilation and air conditioning of a living space.

[0002]

2. Description of the Related Art As an air conditioner for air-conditioning a highly airtight and highly insulated living space having a high airtightness and a well-insulated construction, as disclosed in, for example, JP-A-63-180026. There is something. As shown in FIGS. 7 and 8, this device has a configuration in which a fan coil unit 32, a heat exchange ventilator 33, and a heat source unit 34 are functionally connected. The fan coil unit 32 has a configuration in which a cooling / heating coil 36 which performs a cooling or heating function by conduction of a heat medium is provided on each blowout side of two independent blowers 35, and is mounted in a space above a ceiling in a house. The heat exchange ventilator 33 includes a blower that sucks indoor air and a blower that sucks outdoor air, and supplies and exhausts outdoor air and indoor air through the heat exchange element 37. The heat source device 34 is, for example, a cold / hot water generator, which generates a cooling heat medium or a heating heat medium in the cooling / heating coil 36 of the fan coil unit 32 and conducts it.

[0003] Cooling or heating is performed by operation of a heat source unit 34 and a fan coil unit 32. The air flow cooled or heated by one blower 35 of the fan coil unit 32 is supplied to a room on the second floor in a house, for example, by a duct 38, and the air flow cooled or heated by the other blower 35 is supplied to the other blower. The duct 38 supplies, for example, a room on the first floor of a house. A pressure gradient is set such that the pressure gradually decreases from the room to which the cooled or heated air is supplied toward the installation location of the fan coil unit 32, and the air flow goes around each room and the fan coil unit 3
2 and is sucked into the fan coil unit 32 again to circulate through the house. For ventilation, the heat exchange ventilator 33 is operated to exhaust indoor air to the outside,
It is implemented by supplying outdoor air to the room. The ventilation by the supply / exhaust air is performed through the heat exchange element 37 so that the state quantity such as the temperature and humidity in the room does not largely change due to the ventilation.

[0004]

In the above-mentioned conventional air conditioner, a large space for duct piping is required. For example, in the case of a piping configuration in which a branch duct branches off from a main duct, the duct is installed above the ceiling on the first floor. Piping is often difficult in terms of space, and this involves the problem that it cannot be applied to houses using the two-by-four construction method with a narrow space above the ceiling.
In addition, there is no function other than air conditioning by a cooling and heating function, for example, to stir room air or change the direction of airflow, and cannot cope with a wide range of air conditioning.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and is easy to install, does not take up space, and is easy to use, and is an easy-to-use ventilation air-conditioning system capable of responding effectively to a wide range of air conditioning in the entire living space. The purpose is to obtain.

[0006]

According to the ventilating air-conditioning apparatus of the present invention, an air supply passage and an exhaust passage are formed, and a supply air supply and an exhaust air blower are provided in each passage. A heat exchange ventilator having a heat exchanger that forms an air flow and an exhaust flow and performs heat exchange between the supply air flow and the exhaust flow, and is connected to a supply passage of the heat exchange ventilator on the way. A series of single-row or double-row duct systems, one end of which is open to the outside of the room and the other end of which is open to the room, and which guides the supply air flow into the room. Between the inflow part and the supply air outlet which is an open end to the room, the air-conditioning function unit provided with a blower capable of reversing the blowing direction and at least one of a cooling coil or a heating coil and , The heat exchange with the air conditioning function unit Between the device has a flow channel communicating with the exterior side, is provided with a damper switch switches a flow path of the outdoor side and the flow path communicating with the heat exchange ventilator side.

Another ventilating air conditioner according to the present invention comprises:
In particular, a return port that opens into the room is provided at the front of the air conditioning function unit of the duct system, and a switching damper that switches the flow path is also provided at the branch to the return port.

[0008]

The ventilation air-conditioning system according to the present invention has an air-conditioning function unit as a part of the duct system. The air-conditioning function unit functions by opening the duct system, and the flow path is appropriately switched by the switching damper. Operation and ventilation operation can be performed, and air-conditioning operation and ventilation operation can be performed in parallel with heat exchange ventilation by operating the heat exchange ventilation device.

In another ventilating air-conditioning apparatus according to the present invention, the air in the room can be circulated by the air blown by the air-conditioning function unit, and the direction of the air flow can be reversed to reverse the direction of the circulation flow.

[0010]

[Embodiment 1] The ventilating air-conditioning apparatus shown in FIGS. 1 to 4 is a basic embodiment, in which an air supply blower 1 and an exhaust air blower 2 form a supply airflow and an exhaust airflow, and the airflow between the air supply airflow and the exhaust airflow is formed. A heat exchange ventilator 4 provided with a total heat exchanger 3 for performing heat exchange, and a supply air outlet of the heat exchange ventilator 4 are connected on the way, one end being open to the room and the other end being open to the outside. Connected to a series of air supply duct system 5 that guides the outside air into the room, and a suction port of the heat exchange ventilation device 4,
And an exhaust duct system 6 through which the exhaust gas flows. The heat exchange ventilator 4 sucks outside air as a supply air flow through one working fluid passage of the total heat exchanger 3, blows out the air from the outlet to the air supply duct system 5, and sucks room air through the exhaust duct system 6, and performs total heat exchange. The gas is exhausted from the exhaust port to the outside through the other working fluid passage of the vessel 3. The supply air duct system 5 has an outer diameter of about 100 to 150, which is almost uniform over the entire length, and a straight pipe is provided between a connection portion of the heat exchange ventilation device 4 and the supply air outlet 7 which is an opening end of the room. The air-conditioning function unit 11 is formed by connecting a blower unit 8 having a shape, a heating unit 9 and a cooling unit 10 in series. The blower unit 8 has a configuration in which two propeller-type blowers 13 capable of changing the blow direction are installed on the center line of a straight tubular body 12 having connection ports at both ends, and a heat insulating material 14 is provided on the outer periphery of the body 12. Has been adhered. The heating unit 9 has a configuration in which a heating coil 16 for conducting a heat medium is inserted into the inner diameter of a straight tubular body 15 having connection ports at both ends.
A heat insulating material 14 is attached to the outer periphery of. The heating coil 16 is disposed inside the body 15 so that the pressure loss during ventilation does not increase, and both ends thereof are respectively drawn out as connection ports 17 and connected to a heat source unit by piping to supply a heat medium from the heat source unit. Receive. The cooling unit 10 has a configuration in which a cooling coil 19 for conducting a refrigerant is inserted into an inner diameter of a straight tubular body 18 having connection ports at both ends, and a heat insulating material 14 is attached to an outer periphery of the body 18. Cooling coil 1
9 is the body 1 so that the pressure loss during ventilation does not increase.
8, both ends of which are drawn out to the outside as connection ports 20, are connected to a cooling machine by piping, and are supplied with refrigerant from the cooling machine. The air conditioning function unit 11 is configured by connecting at least one of the heating unit 9 and the cooling unit 10 to the blowing unit 8 in a straight line. The connection between the units is performed using a connection duct 21 formed in a heat insulating pipe. At the junction of the air supply duct system 5 and the heat exchange ventilator 4, a switching damper 23 for switching between a flow path on the side of the intake 22, which is an outdoor open end, and a flow path on the heat exchange ventilator 4 side is provided. . The air supply duct system 5 having the above-described configuration is piped in a space behind the ceiling or the like, and can supply air to the room from an air supply grill 24 provided in the air supply outlet 7. The front part of the air-conditioning function unit 11 of the air supply duct system 5 branches off, and the air-conditioning function unit 11 and the recirculation port 2 opened in the same room as the room in which the air supply outlet 7 is opened.
And five. A switching damper 26 that opens one of the branches and closes the other is provided at the branch to the return port 25. The exhaust duct system 6 is provided as a simple ventilation path in a space above the ceiling or the like, and draws in indoor air from an exhaust grill 27 provided at an opening end of the room to exchange heat with the heat exchange ventilation device 4.
Can be exhausted to the outside of the room.

The air-conditioning function unit 11 can be configured as a heating-only unit, a cooling-only unit, or a cooling-heating unit by combining the blowing unit 8, the heating unit 9, and the cooling unit 10. In addition, by integrating the blowing unit 8 and the heating unit 9, an air-conditioning function unit 11 dedicated to heating as shown in FIG. 3 can be configured. Similarly, by integrating the blowing unit 8 and the cooling unit 10. Air conditioning function unit 11 for cooling only
Can also be configured. Further, by integrating the blower unit 8, the heating unit 9, and the cooling unit 10, the air conditioning function unit 1 for cooling and heating as shown in FIG.
1 can also be configured.

In the ventilating air-conditioning system having the above structure, when the switching damper 23 closes the flow path on the inlet 22 side, and the switching damper 26 closes the recirculation port 25 side to operate the heat exchange ventilator 4, the outside air is totally heated. The air is blown into the air supply blower 1 through the exchanger 3 and is blown out from the air outlet of the heat exchange ventilator 4 to the air supply duct system 5 as the air supply flow. When the air-conditioning function unit 11 constituting a part of the air supply duct system 5 is stopped, the air supply flow is controlled by the blower unit 8, the heating unit 9,
The air passes through the cooling unit 10 to reach the air supply outlet 7, and is supplied from the air supply grill 24 to the room. The indoor air is drawn into the exhaust duct system 6 from the exhaust grill 27 and is exhausted to the outside by the exhaust blower 2 through the total heat exchanger 3 of the heat exchange ventilator 4. The supply air flow and the exhaust air flow undergo heat exchange in the heat exchange ventilator 4, and the heat exchange ventilation is performed by the supply and exhaust air having a small variation in state quantity such as temperature. When the air conditioning function unit 11 is operated in this operating state, heating or cooling can be performed. The heating operation is performed by operating the blower unit 8 and supplying a heating medium such as hot water to the heating coil 16 of the heating unit 9. That is, the heat-exchanged supply airflow blown out from the heat-exchange ventilator 4 to the air supply duct system 5 is sucked by the blower 13 of the blower unit 8 constituting a part of the air supply duct system 5, and the heating unit 9
And heated by the heating coil 16 to be blown out into the room, thereby warming the room. The cooling operation is performed by operating the blower unit 8 and supplying a cooling medium to the cooling coil 19 of the cooling unit 10. That is, the supply airflow after the heat exchange blown out from the heat exchange ventilator 4 to the air supply duct system 5 is sucked by the blower 13 of the air supply unit 8 constituting a part of the air supply duct system 5, and the cooling unit The cooling air is cooled by the cooling coil 19 and blown out into the room to cool the room. The cooling and heating may be performed by opening the recirculation port 25 by the switching damper 26 and stopping the operation of the heat exchange ventilator 4. When the air conditioning function unit 11 is operated in this state, it is possible to perform cooling and heating or circulating indoor air by circulating indoor air, and to reverse the direction of circulating indoor air by inverting the blower 13. Further, when the intake 22 is opened by the switching damper 23, the heat exchange ventilation device 4 is stopped, and the blower unit 8 is operated, the outside air can be directly introduced into the room by the air supply duct system 5, and the blower 13 is When inverted, room air can be directly exhausted to the outside by the air supply duct system 5, thereby exhibiting a wide range of air conditioning functions. The installation of the ventilation air conditioner can be performed by attaching the heat exchange ventilation device 4 and piping of the air supply duct system 5 and the exhaust duct system 6 and piping to a heat source device and a cooling device. The air-conditioning function unit 11, which is the main cooling and heating function, has the same outer diameter as the other air supply duct system 5, and since all are straight tubular and arranged in series, installation in the space above the ceiling is easy. Not only that, the piping space is narrow. Therefore, the present invention can be applied to a house by the two-by-four construction method in which the space above the ceiling is narrow, and the controllability is good. Functionally, if the air-conditioning function unit 11 corresponding to the load of the room is configured together with the air supply duct system 5, a ventilation air-conditioning apparatus according to the load of each room can be easily configured, and the waste can be reduced and effective. And can realize a wide range of ventilation and air conditioning.

Embodiment 2 FIG. FIG. 5 shows an embodiment of a ventilating air-conditioning system developed from the first embodiment. The air supply duct system 5 is configured in a double row so that ventilation and air conditioning of the first floor of a house can be measured. Has become. Basic configuration is Example 1
The same as above, but since the air supply duct system 5 is a multiple system,
An air supply chamber 28 is provided on the air outlet side of the air supply flow of the heat exchange ventilator 4. The air supply chamber 28 is provided with a plurality of air outlets, to which the air supply duct system 5 is connected. In FIG. 5, one end of each of the two air supply duct systems 5 is open to the outside of the room, and the other end is open to each of the first and second floor rooms. Each outlet of the air supply chamber 28 is connected to a branch duct 29 behind the outdoor opening of the air supply duct system 5. In the figure, 30 is a heat source unit, 31 is a cooling unit, and 32 is a cold / hot water chiller.

In the ventilating air-conditioning system of this embodiment, the air supply duct system 5 may have a duct configuration depending on the load, and can provide individual ventilation and air conditioning according to the load needs. The two air supply duct systems 5 can be individually operated as needed.

Embodiment 3 FIG. The embodiment shown in FIG. 6 is a specific example for realizing individual ventilation and air conditioning in a plurality of rooms.
That is, the air supply flow of the heat exchange ventilator 4 (omitted in FIG. 6) is introduced into the air supply chamber 28, and the air supply duct systems 5 are arranged in parallel from the air supply chamber 28 to a plurality of rooms. You. The air supply duct system 5 for each room has a diameter and an air conditioning function unit 1 according to the size of the room and the use of the room.
1 ability is set. An air conditioning function unit 11 dedicated to heating is configured for a room that does not require cooling, and an air conditioning function unit 11 dedicated to cooling is configured for a room that does not need heating.

According to the ventilation and air-conditioning system of this embodiment, a ventilation and air-conditioning system according to the characteristics of each room can be easily configured, and economical and functional ventilation and air conditioning can be implemented in an individualized form.

[0017]

As described above, according to the present invention, the air supply flow path and the exhaust flow path are formed, and the air supply flow and the exhaust air flow are provided by the air supply blower and the exhaust air blower disposed in the respective flow paths. And a heat exchange ventilator provided with a heat exchanger for exchanging heat between the supply air flow and the exhaust air flow. A series of single-row or double-row duct systems, each of which has the other end open to the outside of the room and guides the supply flow into the room, and the duct system includes an inlet portion of a supply flow from the heat exchange ventilator. The space between the air supply outlet, which is an open end to the room, and an air conditioning function unit provided with a blower capable of reversing the direction of airflow and at least one of a cooling coil or a heating coil, and Between the functional unit and the above heat exchange ventilator It has a flow path communicating with the outdoor side, and a switching damper for switching between the flow path communicating with the outdoor side and the flow path on the heat exchange ventilator side is provided. The overall effect is that it can cope with a wide range of air conditioning, and the effect of improving usability is obtained.

Further, according to the multi-ventilation air-conditioning system of the present invention, the air in the room can be circulated particularly by the air blown by the air-conditioning function unit, and the direction of the air flow can be reversed and the direction of the circulating flow can be reversed. And broader air conditioning is achieved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a configuration of a ventilation air conditioning apparatus according to the present invention.

FIG. 2 is a sectional view showing a configuration of an air conditioning function unit of the ventilation air conditioning apparatus according to the present invention.

FIG. 3 is a sectional view showing another embodiment of the air conditioning function unit in the ventilation air conditioning apparatus according to the present invention.

FIG. 4 is a sectional view showing another embodiment of the air conditioning function unit in the ventilation air conditioning apparatus according to the present invention.

FIG. 5 is a configuration diagram showing another embodiment of the ventilation and air-conditioning apparatus according to the present invention.

FIG. 6 is a configuration diagram showing still another embodiment of the ventilation and air-conditioning apparatus according to the present invention.

FIG. 7 is a configuration diagram of a conventional ventilation air-conditioning apparatus.

FIG. 8 is a cross-sectional view of a fan coil unit in a conventional ventilating air conditioner.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 air supply blower 2 exhaust air blower 3 total heat exchanger 4 heat exchange ventilator 5 air supply duct system 6 exhaust duct system 7 air supply outlet 8 air supply unit 9 heating unit 10 cooling unit 11 air conditioning function unit 13 air blower 16 heating Coil 19 Cooling coil 22 Intake 23 Switching damper

Claims (2)

(57) [Claims] An air supply flow path and an exhaust air flow path are formed, and a supply air flow and an exhaust air flow are formed by an air supply blower and an exhaust air blower arranged in each flow path. A heat exchange ventilator provided with a heat exchanger for exchanging heat with the exhaust flow, and connected to the air supply passage of the heat exchange ventilator on the way, with one end open to the outside and the other end open to the room. A series of single-row or double-row duct systems for directing the supply air flow into the room, wherein the duct system includes an inlet portion of the supply air flow from the heat exchange ventilator and an air supply opening which is an open end to the room. Between the outlet, a blower capable of reversing the direction of air blow, and configured by an air conditioning function unit provided with at least one of a cooling coil or a heating coil, and the air conditioning function unit and the heat exchange ventilation device There is a flow path communicating with the outside of the room, A ventilation damper for switching between a flow path communicating with the outside of the vehicle and a flow path on the heat exchange ventilation device side. 2. The air conditioner according to claim 1, wherein a return opening is provided at the front of the air conditioning function unit of the duct system, and a switching damper for switching a flow path is provided at a branch to the return opening. A ventilation air conditioner according to claim 1.