JPS6396434A - Air conditioning system - Google Patents

Abstract

PURPOSE:To prevent a drop in heating capacity of an air conditioner when the outside temperature is low by connecting a heat source air carrying duct to an outlet port of a solar air collector such that the air heated in the collector is carried to an outdoor unit through the carrying duct. CONSTITUTION:Where the temperature of air heated by the solar heat is below 30 deg.C because of a sunlight deficiency in cloudy winter days, and therefore, the space heating cannot be performed by a solar air collector 1, obliging the space heating to be performed by an air conditioner, air is introduced into the solar air collector 1 by a fan 12 in attic. The air heated in the solar air collector 1 is delivered from the rear of an outdoor unit 2 through a heat source air carrying duct 3 to raise the temperature around the outdoor unit 2. As a result, heat is collected from the warm air by the outdoor unit 2, permitting a high heating efficiency without causing a reduction in the heating capacity of the air conditioner.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an air conditioning system that combines a solar air collector and an air conditioner.

[Background technology]

Conventionally, air conditioners for heating and cooling have been widely used.

Such air conditioners have a problem in that during heating operation in winter, when the outdoor temperature becomes low (0° C. or lower), the heating capacity of the air conditioner rapidly decreases, making it impossible to obtain sufficient heating efficiency.

[Purpose of the invention]

An object of the present invention is to provide an air conditioning system in which the heating capacity of the air conditioner does not decrease even when the outdoor temperature drops during heating operation of the air conditioner in winter.

[Disclosure of the invention]

The air conditioning system of the present invention is connected to a solar air collector installed outdoors, an outdoor unit of an air conditioner installed outdoors that heats the room by collecting heat from surrounding air, and an exhaust port of the solar air collector. It is equipped with a heat source air conveyance duct that conveys the heated air passing through the solar air collector to the outdoor unit and collects heat in the outdoor unit.

As described above, according to the present invention, the heat source air conveying duct is connected to the exhaust port of the solar air collector, and the air that has passed through the solar air collector and is heated is conveyed to the outdoor unit through the heat source air conveying duct. In winter, when it is cloudy and there is insufficient solar radiation to heat the solar air collector, and an air conditioner is used for heating, even if the outdoor temperature drops (below 0 degrees Celsius), solar heat is not available. Sufficient heat can be supplied from the air collector to the outdoor unit, so that the heating capacity of the air conditioner does not decrease and sufficient heating efficiency can be obtained.

Embodiment An embodiment of the present invention will be described with reference to FIGS. 1 to 6. That is, as shown in FIG. 1, this air conditioning system includes a solar air collector 1 installed outdoors,
An outdoor unit 2 of an air conditioner that is installed outdoors and performs indoor heating by collecting heat from the surrounding air, and the solar air collector 1
The heat source air conveying duct 3 is connected to the exhaust lower of the solar air collector 1 and conveys the heated air passing through the solar air collector 1 to the outdoor unit 2, where the outdoor unit 2 collects heat.

As shown in FIG. 1, the solar air collector 1 includes:
It is installed on the upper surface of the roof 24, and an air exhaust lower and an air intake port 9 are provided at both ends, and a hot water heat exchanger 8 is installed near the exhaust lower.

FIG. 2 is a sectional view of the heat collecting part A of the solar air collector 1 and the hot water supply heat exchanger 8 connected to the heat collecting part A.

The heat collecting part A has a double transparent plate 30 disposed on the uppermost surface.
31, and a heat insulating material 34 provided on the plate 33, which is attached to the bottom of the solar air collector 1, and the double transparent plate 3
An air flow path 32 is formed between the 0.3+ and the heat insulating material 34.

Further, in the solar air air collector 1 on the downstream side of the heat collecting part A, a hot water heat exchanger 8 is disposed, which is connected to a water heater or the like by a vibrator 36 having fins 38 attached to the outer surface.

In FIG. 2, 35 is a hot water supply heat exchanger 8 and a transparent plate 30.
This is a cover to prevent rainwater from entering between the The hot water supply heat exchanger 8 is installed between the plate 33 and the cover 35 for preventing rainwater intrusion through a heat insulating panel 37, respectively.

The air conditioner performs cooling and heating using a heat pump mechanism, etc., and has outdoor units 2 and 1 installed outdoors.
It is comprised of indoor units 16a and 16b attached to each indoor unit 23a and 23b on the first and second floors.

As shown in FIG. 1, the heat source air conveying duct 3 has one end connected to the exhaust lower of the solar air collector l and the other end located at the rear of the outdoor unit 2 to transport heated air from the solar air collector l to the outside. This is a duct for conveying to machine 2.

Furthermore, one end of an exhaust duct 5 for discharging the air that has passed through the solar air collector 1 is connected to the upstream side of the heat source air conveyance duct 3, and the other end of the exhaust duct 5 is connected to the roof 2.
4 is connected to an exhaust pipe 13 provided on the top surface. A first damper 10 for opening and closing is provided within the exhaust duct 5.

On the other hand, an exhaust heat air conveying duct 4 is connected to the inlet 9 of the solar air collector 1, with one end disposed behind the outdoor unit 2 and for conveying the exhaust heat generated by the outdoor unit 2 to the solar air collector 1. Ru. The intake duct 6, one end of which is located in the attic 25, is connected to the exhaust heat air conveyance duct 4. A second damper 11 is provided in the intake duct 6.

Further, a fan 12 is provided in the exhaust heat air conveying duct 4 that connects the air intake duct 6 and the solar air collector 1.

The heat source air conveyance duct 3 and the exhaust heat air conveyance duct 4 are provided with a third damper 17 and a fourth damper 18, respectively, for opening and closing.

moreover,#! ! A branch duct 3b that branches from the heat source air conveyance duct 3 and forms air outlets 14a and 14b for each room 23a and 23b is connected to the heat source air conveyance duct 3, and each branch duct 3b has a fifth dampers 19 are provided respectively.

On the other hand, the exhaust heat air conveyance duct 4 is connected to a branch duct 1-4b which branches from the exhaust heat air conveyance duct 4 and forms air intake ports 15a and 15b for each room 23a and 23b. 1-4b are each provided with a sixth damper 20.

Next, the operation of the air conditioning system in this embodiment will be explained based on FIGS. 3 and 6.

(1) Figure 3 shows the flow of air during cooling operation in summer.

Note that the air flow during the cooling operation is shown by a dashed line C in FIG. At this time, the first and fourth dampers 10, 18 are opened, and the second. 3rd degree 5th and 6th damper 1
1, 17, 19.20 are closed.

The outdoor unit 2 of the air conditioner during cooling operation is a heat radiator, and the exhaust heat discharged from the outdoor unit 2 is sent to the solar heat air collector 1 via the exhaust heat air conveying duct 4 by the fan 12.
guided by. As a result, exhaust heat is collected in the hot water supply heat exchanger 8 and used for hot water supply, and excess heat is discharged outdoors from the exhaust pipe 13 via the exhaust duct 5. Therefore, the exhaust heat heated by the outdoor unit 2 can be used,
Heat for hot water supply can be secured even at night when there is no solar heat or during rain.

(If) FIG. 4 shows the flow of air during heating operation of the air conditioner in winter.

Note that the flow of air during the heating operation of the air conditioner is shown by a dot 1jild in FIG. At this time, the second
．． The third damper 11.17 is opened and the 1st and 4th dampers are opened. Fifth.
Sixth damper 10. 18. 19.20 is closed.

In winter, when it is not possible to heat the room using the solar air collector 1 because there is insufficient solar radiation due to cloudy weather and the temperature of the air heated by solar heat is low (30° C. or less), and when the room is heated using an air conditioner, Air from the attic is guided into the solar air collector 1 by a fan 12 through an air intake duct 6 provided in the attic 25. The air heated by the solar air collector 1 is passed from the rear of the outdoor unit 2 via the heat source air conveyance duct 3. The air blows out and raises the temperature around the outdoor unit 2. Therefore, heat is collected from the warm air outside #R2, and sufficient heating efficiency can be obtained without reducing the heating capacity of the air conditioner.

(III) FIG. 5 shows the flow of air during heating operation using solar heat in winter.

In addition, the flow of air during heating operation using solar heat is shown by a chain double-dashed line E in FIG. At this time, the 5th. 6th
The dampers 19 and 20 of the 1st and 2nd are opened. Third. Fourth damper 10. 11. 17.18 are closed.

The air in the rooms 23a and 23b is guided by the fan 12 from the air intake ports 14a and 14b into the solar air collector 1 through each branch duct 4b and the exhaust heat air conveying duct 4. The high temperature air heated by the solar air collector 1 is transferred to the heat source air conveyance duct 3 and each branch duct 3b.
From the air outlets 15a, 15b to the indoor rooms 23a, 2
3b, the air circulates between the indoor rooms 23a, 23b and the solar air collector 1, and the air is blown out into each indoor room 23a.

23b is heated.

In this embodiment, the air intake of the intake duct 6 is provided in the attic 25, but it may also be provided in a basement or the like.
Further, a duct provided in one of the rooms can also be configured as an intake duct.

Further, if a heat source for hot water supply in summer is not required, the exhaust heat air conveying duct 4 and the exhaust duct 5 can be omitted.

〔Effect of the invention〕

According to the space system of this invention, a heat source air conveying duct is connected to the exhaust port of the solar air collector,
Since the air that has been heated after passing through the Q air collector is conveyed to the outdoor unit via the heat source air conveyance duct,
In the winter, when the solar air collector is unable to provide heating due to insufficient solar radiation due to cloudy weather, and an air conditioner is used for heating, even if the outdoor temperature drops (below 0°C), the solar air collector will not be able to connect to the outdoor unit. Sufficient heat can be supplied, so that the heating capacity of the air conditioner does not decrease and sufficient heating efficiency can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an embodiment of the present invention, Fig. 2 is a sectional view of the heat collecting part of a solar air collector and a heat exchanger for hot water supply, and Fig. 3 is a sectional view of the air during cooling by an air conditioner in the summer. Figure 4 is an explanatory diagram showing the flow of air during heating by an air conditioner in winter, Figure 5 is an explanatory diagram showing the flow of air during heating by solar heat in winter, and Figure 6 is an explanatory diagram showing the flow of air during heating by solar heat in winter. It is a LL'l'1 diagram showing the flow of air during heating and cooling in one embodiment of the present invention.

Claims (1)

[Claims] A solar air collector installed outdoors, an outdoor unit of an air conditioner installed outdoors that heats the room by collecting heat from the surrounding air, and air that is connected to the exhaust port of the solar air collector and passes through the solar air collector. An air conditioning system comprising a heat source air conveying duct that conveys heated air to the outdoor unit and collects heat in the outdoor unit.