JPH0718570B2 - Air purification ventilation air conditioner and control system of the device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention regulates the supply amount of outside air, removes dust and adjusts the temperature of the outside air and supplies it to the room, and at the same time, heats the air in the room to be discharged. The present invention relates to an air conditioner that is exchanged for use.

(Prior Art) Conventionally, air conditioners have been used, but most of them supply temperature-controlled indoor air to which dust has been removed, while indoor air (inside air) is discharged as it is, or It was discharged after exchanging heat with. For example, in a conventional air conditioner, as shown in FIG. 5, a dust filter 31 and a temperature control cold / hot water coil 32 are arranged in a housing 30,
The outside air is taken in from the outside air intake port 33 by the air supply fan 34, is supplied to the room through the air supply port 35 through the dust filter 31 and the cold / hot water coil 32, and the air in the room is provided below the air conditioner. Inside air suction port by return air fan 37
36 is sucked in, part of it is discharged to the outside from the exhaust port 38, and the rest is circulated through the ventilation damper 39.The ventilation amount of the indoor air is controlled by the outside air intake port 33 for introducing the outside air and the return air. It is controlled by opening and closing the ventilation damper 39 interposed between the fans 37.

(Problems to be solved by the invention) As described above, in the conventional air conditioner, the temperature-controlled air is often discharged to the outside of the room, and even when heat is exchanged, it is merely heat exchange between the outside air and the inside air. The heat utilization efficiency was also insufficient. With the spread of air conditioners in recent years,
Energy saving is demanded, and effective use of heat is desired. Further, since frost is formed on the heat non-use side heat exchanger of the heat pump having a low outside air temperature and the heat exchange performance is deteriorated, improvements in these devices are also desired. Furthermore, the conventional air conditioner has a problem that if the cooling / heating function is stopped when cooling / heating is not required, the outside air from which dust has been removed cannot be taken into the room.

The present invention aims to provide an air conditioner capable of satisfying the above-mentioned demands.

(Means for Solving the Problems) The air purification ventilation air conditioner of the present invention is a heat pump device,
It has a heat exchange ventilator, an outside air supply blower and a dust remover,
A feature is that an automatic shutter that opens when the heat pump device is operating and that closes when the heat pump device is stopped is provided between the inside air intake ports.

Further, according to the present invention, when the heat pump is operated, the discharge inside air is provided with the discharge port through which the heat non-use side heat exchanger of the heat pump is discharged, and the inside air discharge port is opened and closed when the difference in static pressure between the inside and the outside exceeds a predetermined value. It is characterized by having a shutter.

The present invention also includes a control system characterized by detecting the temperature, the humidity, and the degree of air pollution in the room by a sensor or the like to control the air purification ventilation air conditioner.

More specifically, the present invention sequentially supplies the outside air taken in through the outside air supply port to a room by passing through a heat exchange ventilation device, a dust removing device, a heat utilization side heat exchanger of a heat pump, and an auxiliary heating device. At this time, if necessary, the inside air is mixed with the taken-in outside air to pass through each of the above-mentioned devices except the heat exchange ventilator to be supplied indoors. The air in the room is discharged in response to the supply of the outside air, but the discharged air is discharged into the heat recovery chamber through the heat exchange ventilation device into the heat recovery chamber, and the heat of the heat pump provided in the heat recovery chamber is discharged. It is discharged to the outside air side through the non-use side heat exchanger. In addition,
The heat recovery chamber is provided with an outside air intake port and an exhaust port,
The outside air is taken into the heat recovery chamber, and the heat of the outside air is recovered or radiated by the heat non-use side heat exchanger of the heat pump.

In the above, the internal airflow outlet for mixing the internal air into the taken-in outside air and the internal air exhaust port opening to the heat recovery chamber are respectively provided with automatic shutters, and these automatic shutters receive signals from the sensors provided in each part. , Or open or close according to a predetermined microcomputer command. It should be noted that the internal air discharge port on the heat recovery chamber side does not necessarily need to be provided with an automatic shutter, and may be simply provided with a valve for preventing outside air from entering. The automatic shutter provided at the inner airflow outlet closes the inner air outlet when the heat utilization side blower for mixing the inner air with the outside air is stopped.

(Operation) Since the present invention is configured as described above, the outside air is air-conditioned and supplied to the room by the operation of the outside air supply blower provided at the outside air intake. Excessive indoor air is exhausted in response to the supply of external air, but indoor air exchanges heat with the external air taken into the room through the exhaust air intake port and the heat exchange ventilation device,
If desired, the heat is then exchanged again in the heat non-use side heat exchanger and discharged outside the room.

When the air conditioner is operating, the automatic shutter at the inside air flow outlet opens, the outside air taken in is mixed with the inside air, is cleaned by the dust remover, and the temperature is adjusted by the heat utilization heat exchanger. It is blown indoors. When the cooling / heating device (heat pump device and auxiliary heating device) is not used, the automatic shutter is closed, and the outside air sent by the outside air supply blower is cleaned by the dust removing device and supplied to the room.

(Example) Hereinafter, the Example of this invention is described according to drawing.

FIG. 1 is a schematic cross-sectional view for explaining an embodiment of the air purification ventilation air conditioning system of the present invention. In the figure, the left side of the air conditioning system A is the outside air side and the right side is the room.

The outside air is taken in through the outside air supply blower 6 provided in the outside air supply port 12 through the port 12, and through the pipe line 7a in the heat exchange ventilation device 7 for exchanging heat between the outdoor and the indoor air,
It is led to an air-conditioning room 15 equipped with a dust removing device 8, a heat utilization side heat exchanger 2, and an auxiliary heating device 9, and the above-mentioned devices in the air-conditioning chamber 15 are successively passed through to be air-conditioned and supplied indoors through an inside air supply port 19. .
The heat utilization side heat exchanger 2 forms a heat pump device together with the heat non-use side heat exchanger 4 and the compressor 1 described later.

When supplying the outside air, the air conditioning room 15 supplies a part of the inside air,
It is supplied to the room through the respective devices 8, 2 and 9 together with the outside air. The inside air supplied to the air-conditioning room 15 is sucked into the main air-conditioning apparatus by the heat-use side blower 24 from the inside-air intake port 3 opening to the inside of the room, and is blown out from the inside airflow outlet 3a according to opening / closing of the automatic shutter 17.

The indoor air flows into the heat exchange ventilation device 7 through the exhaust internal air intake 11, passes through the inside of the pipe 7b, and is exhausted into the heat recovery chamber 18 through the exhaust internal air outlet 13. A heat non-use side heat exchanger 4 of a heat pump is provided in the heat recovery chamber 18 to recover the heat of the outside air and the exhausted inside air. The outside air is taken into the heat recovery chamber 18 from the outside air suction port 16 by the heat non-use side blower 5, and passes through the heat non-use side heat exchanger 4 to the outside air discharge port.
It is put out of the room from 25. The automatic shutter 20 provided at the discharge inside air outlet 13 is mainly for preventing the outside air from flowing in, but may be closed when it is not desired to send the inside air to the heat non-use side heat exchanger 4. In this case, the exhaust air outlet 13
Separately from the above, it may be discharged directly from an outlet (not shown) for discharging to the outside of the room. The adjustment of the exhaust air volume by controlling the opening degree of the automatic shutter 20 may be performed by the rotation speed of the motor of the outside air supply blower 6.

In this air conditioner, when air conditioning is not required, the automatic shutter 17 of the inner airflow outlet 3a is closed, and the outside air taken in from the outside air supply port 12 passes through the dust removing device 8 in the air conditioning room 15 and enters the room through the inside air supply port 10. Supplied. The inside air is discharged to the outside in the same manner as when using the cooling and heating. Note that the automatic shutter 17 may be automatically closed when the sensor 21 detects humidity, oxygen concentration, and the like in the living room, not when air conditioning is not used, and when it is not desirable to circulate the inside air. In addition, it may be opened and closed by a microcomputer 19 in which a program is installed in advance. The sensor 21 may be located anywhere in the living room, but is preferably near the inside air intake port 3.

FIG. 2 shows a second embodiment in which a part of the apparatus of the embodiment of FIG. 1 is modified, and a heat utilization side blower 24 for circulating the inside air and supplying it to the room is provided with an inside air supply port. This is an example provided in the vicinity of 10. In the case of the device of this example, since the automatic shutter 17 is provided at the inside air intake port 3 opening to the indoor side, intake of the inside air is performed more accurately, and it is easier for the outside air to pass through the dust removing device 8 and the like. Can be

FIG. 3 shows another embodiment of the device of the present invention, in which the inside air is not directly discharged into the heat recovery chamber 18, but is discharged to the outside air side through the pipe 26 in the heat recovery chamber 18. . The other parts are
Since it is the same as the embodiment shown in FIGS. 1 and 2, the same reference numerals are given and the description thereof is omitted.

In the case of the device of FIG. 3, the pipe 26 in the heat recovery chamber 18 does not affect the heat non-use side heat exchanger 4 thermally,
The inside air can be discharged to the outside of the room.

FIG. 4 is an explanatory view of a microcomputer control for controlling the device of the present invention, which is arranged in a living room or the like as shown in the figure, or is incorporated in the device of the present invention. The signals emitted by the respective sensors such as the concentration sensor and the frost detection sensor are calibrated with a program incorporated in a microcomputer, and a heat pump device, an auxiliary heating device, an inside / outside air supply blower, an automatic shutter, etc. are operated.

(Effect of the invention) The air conditioner of the present invention is a heat pump device for cooling and heating,
A dust remover and a heat exchange ventilator for collecting the heat of exhausted air are integrated, so it is compact and does not take up much space for installation, and only the outside air can be supplied indoors by closing the automatic shutter. Therefore, it is possible to always take in a controlled amount of purified outside air into the room regardless of whether the cooling and heating device is operating. In the device of the present invention, the heat of the exhausted inside air is exchanged with the outside air by the heat exchange ventilation device, or is exchanged twice with the heat exchange ventilation device and the heat non-use side heat exchanger of the heat pump. It is effectively used and economical. In addition, since the heat of the warm inside air heats the heat non-use side heat exchanger during heating, there is an advantage that the frosting problem that has occurred conventionally does not occur and the thermal efficiency improves.

[Brief description of drawings]

1, 2, and 3 are schematic cross-sectional views of each embodiment of the present invention, FIG. 4 is an explanatory view of a computer control system, and FIG. 5 is a schematic cross-sectional view of a conventional air conditioner. In the figure, 2 ... Heat-use side heat exchanger 4 ... Heat-non-use side heat exchanger 7 ... Heat exchange ventilation device 8 ... Dust removal device 9 ... Auxiliary heating device

Claims (4)

[Claims] 1. An air having a heat pump device, a heat exchange ventilation device, an outside air supply blower and a dust removing device, and an automatic shutter which is opened when the heat pump device is in operation and closed when the heat pump device is stopped is provided between the inside air intake ports. Purification ventilation air conditioner. 2. The air purification ventilation air conditioner according to claim 1, further comprising a discharge port through which the discharged inside air is discharged through the heat non-use side heat exchanger of the heat pump during the operation of the heat pump. 3. The air purification ventilation air conditioner according to claim 1, wherein the inside air discharge port is provided with a shutter that opens and closes when the difference in static pressure between the inside and the outside exceeds a predetermined value. 4. A control system for an air purification ventilation air conditioner, wherein the air conditioner according to claim 1 is controlled by detecting temperature, humidity, and the degree of air pollution in the room by a sensor or the like.