JPS646366B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an air conditioner that can take out hot and cold air obtained from a solar heat collector and an underfloor space by utilizing a series of ducts.

[Background technology]

There are two types of air conditioners that use cold air under the floor to cool the room and one that uses solar heat to heat the room. Conventional systems use separate ducts to cool the room, but conventional systems use separate ducts to cool the room. was flowing through. Therefore, as shown schematically in FIG. 4, fans f1 and f2 are installed in the duct b that takes in the cold air from the underfloor space a into the room and the duct d that leads the air heated by the solar heat collector c to the room r, respectively. However, there is a problem in that the usage period for cooling and heating is limited, the utilization efficiency of the fans f1 and f2 is low, and the equipment cost is high.

[Purpose of the invention]

The present invention solves the above problems by interposing a fan that sends air from the air outlet toward the room in a duct that communicates the air outlet of the solar heat collector with the room, and providing a branch duct upstream of the fan. The purpose is to provide an air conditioning system that can solve the following problems.

[Disclosure of the invention]

An embodiment of the present invention will be described below based on the drawings.

In FIG. 1, an air conditioner 1 includes a solar heat collector 2
A fan 5 that sends air from the air outlet 3 toward the room R is interposed in a duct 4 that communicates the air outlet 3 of the duct 4 with the room R, and a branch that leads to the underfloor space 7 on the upstream side of the fan 5 of the duct 4. A duct 6 is connected thereto, and in this embodiment, a branch pipe 26 leading to a heat storage tank 8 on the downstream side of the fan 5 is connected thereto.

The solar heat collector 2 is formed as an air-type solar heat collector that heats the air inside by solar heat, with a heat collecting plate 12 housed in a box 11 whose upper part is shielded by a transparent plate. , the solar heat collector 2 is formed on the roof facing south. The underfloor space 7 is, for example, a space surrounded by the floor 14 of the room R2 facing north, the cloth foundations 15 and 18 surrounding the floorboard 14, and the subfloor surface 16 inside thereof. A discharge port 17 through which the branch duct 6 communicates is opened in one of the cloth foundations 15, and a cloth foundation 18 of the other cloth facing the discharge port 17 has a first cloth foundation 18 that opens toward the roof and is provided with a first damper D1. A ventilation port 19 is provided.

The duct 4 is provided with a first on-off valve 21 upstream of the branch point a to which the branch duct 6 connects, and the branch duct 6 is provided with a second on-off valve 22 on the upstream side of the branch point a. and the first and second on-off valves 21,
22 forms the valve device 9. The valve device 9 has a first,
By opening and closing the second on-off valves 21 and 22 in the opposite direction, the air outlet 3 of the fan 5 and the solar heat collector 2;
By selectively connecting the fan 5 and the underfloor space 7 and closing both the first and second on-off valves 21 and 22, the fan 5 can be connected to either the solar heat collector 2 or the underfloor space 7. It can also be blocked.

Further, the duct 4 is provided with a second damper D2 between the fan 5 and the inlet 23 opening toward the room R, and from the branch point b between the second damper D2 and the fan 5, One ventilation port 25 of the heat storage tank 8
A branch pipe 26 opening at is connected. The branch pipe 26
A bypass pipe 27 is provided extending from the branch point c and connected to the duct 4 at the branch point a. Further, in the branch pipe 26, a third damper D3 is installed between the branch points b and c.
In addition, a fourth damper D4 is interposed in the bypass pipe 27.

The heat storage tank 8 is insulated by attaching a heat insulating material 34 to the cloth foundation 32 surrounding the space 31 below the room R and the subfloor surface 33, and by installing crushed stone or the like between the cloth foundations 32 facing each other and the partition plate separating the small gap. Solid heat storage material 3
5 is loaded, and the other ventilation port 29 is provided on the cloth foundation 32 facing one front ventilation port 25.

In this embodiment, a non-air conditioned section 41 is provided in the room R with a wall W in between, and the non-air conditioned section 41 is
A return pipe 4 communicating with the room R through an outlet 40 and having one end communicating with the air inlet 10 of the solar collector 2
a second ventilation port 4 which is open at the other end of the ventilator 2, opens toward the outdoors, and is provided with a fifth damper D5;
3 is provided. Further, in the non-air conditioned section 41, a conduit 45 which passes through the underfloor surface 16 and has one end connected to the underfloor space 7 is open at the other end.
is connected to the sixth damper D6 of the conduit 45 via a sixth damper D6 capable of switching conduction, and
A seventh damper D7 is provided between the opening end and the non-air conditioning section 41. However, in winter, when there is sunlight, the valve device 9 is operated to connect the fan 5 and the solar heat collector 2, and the second
By opening the damper D2, the solar heat collector 2 can be electrically connected to the room R through the duct 4 and the inlet 23, and therefore, when the fan 5 is operated, heated air can be discharged to the room R for air conditioning. . The return air passes through the exhaust port 40 of the vacant building R, the non-air conditioned part 41, and the return pipe 42, and then enters the solar heat collector 2 from the air inlet 10.
It can be circulated to On the other hand, the valve device 9 is operated to connect the solar heat collector 2 and the fan 5, open the third and seventh dampers D3 and D7, and operate the sixth damper D6, thereby opening the conduit 45 and the branch conduit 46. As shown in FIG. 2b, the solar heat collector 2 conducts the hot air to the heat storage tank 8 through the duct 4, the branch pipe 26, and the ventilation hole 25, and directs the warm air to the storage tank 8. can flow into the The return air is sent to the branch pipe 4.
6. The heat returns to the solar heat collector 2 through the conduit 45, the non-air conditioning section 41, and the return pipe 42, and is stored in the heat storage tank 8.

Furthermore, as shown in FIG. 2c, by operating the valve device 9, the solar heat collector 2 and the fan 5 are brought into electrical connection, and the sixth damper D6 is tilted toward the branch pipe 46, and the second, third, Fourth damper D2, D3, D
4 is opened, the solar heat collector 2 can communicate with the room R and the heat storage tank 8 at the same time via the duct 4 and the branch pipe 26, and the hot air can be circulated to both. Furthermore, as shown in FIG. 2d, by operating the valve device 9, both the solar heat collector 2 and the underfloor space 7 are shut off, while only the second, fourth, and seventh dampers D2 and D7 are opened and the damper D6 is closed. When operating toward the branch conduit 46 side, the heat storage tank 8 passes through the branch point 26 between the ventilation hole 25 and the branch point c, the bypass pipe 27, the branch point a of the duct 4, and the inlet 23. Room R
Therefore, when the fan 5 is driven, the air flowing from the discharge port 40 through the non-air conditioning section 41, the conduit 45, and the branch conduit 46 is heated by the heat stored in the heat storage material 35, and then the flow path is heated. The heat can then be discharged into the room R, and the stored heat can be taken out to the room R.

Furthermore, in the summer, as shown in FIG. 2e, the underfloor space 7 is communicated with the fan 5 by operating the valve device 9, and the second and seventh dampers D2 and
7 is opened and the sixth damper is operated to connect the underfloor space 7 and the non-air conditioned part 41, and as the fan 5 is driven, the conduit 45 and the under floor space are opened from the discharge port 40 through the non-air conditioned part 41. It is cooled while passing through the underground duct 7, and is discharged into the room R through the branch duct 6 and between the branch point a of the duct 4 and the inlet 23, so that the cold energy from underground can be taken out into the room R. Further, by operating the valve device 9, the underfloor space 7 and the fan 5 are made conductive, while the first, second, and fifth dampers D1, D2, D5
By opening the fan 5, the second
As shown in figure f, the outdoor air flows through the first ventilation opening 1
The cold air flows into the under-floor space 7 through 9 and exchanges heat with the under-floor surface 16 to cool the space, and the cold air is discharged into the room R through the branch duct 6 and duct 4 to cool the room R. The return air can be discharged outdoors through the exhaust port 40 of the room R, the non-air conditioned part 41, and the second exhaust port 43, and the room can be air-cooled by flowing outside air into the room at night in summer.

In FIG. 3, an underfloor space 7 is provided under the floor of a solar heat collector 2 and a room R, a fan 5 is interposed in a duct 4 that communicates the solar heat collector 2 and the room R, and an underfloor space 7 is provided on the upstream side of the fan 5. Another embodiment in which a branch duct 6 is provided which communicates with the duct 4 and the branch duct 6, and a valve device 9 is interposed between the duct 4 and the branch duct 6, which can selectively connect the fan 5, the solar heat collector 2, and the underfloor space 7. shows. In this embodiment, by omitting the heat storage tank, the structure can be simplified, and the damper D7 is used for cooling.
It is opened to return the air from room R to the underfloor space 7. Furthermore, as shown by the dashed line in Fig. 3, the dampers D1 and D5
By opening the opening, outdoor air can be discharged into the room through the underfloor space 7 to cool the room R, and then be discharged outdoors.

〔Effect of the invention〕

In this way, the air conditioner of the present invention has a fan that sends air from the solar heat collector toward the room interposed in the duct that communicates the solar heat collector and the room, and the duct communicates with the underfloor space on the upstream side of the fan. By connecting the branch duct and providing a valve device in the duct and the branch duct to selectively conduct the fan and the solar heat collector and the fan and the underfloor space,
Warm air from the solar heat collector and cold air from the underfloor space can be selectively discharged into the room, making it possible to cool and heat the room with one fan throughout the winter and summer, increasing the operating efficiency of the device, and also cooling and heating the room. Equipment costs can be reduced compared to when using separate equipment. In addition, when a heat storage tank is installed, the heat storage tank can be electrically connected to the solar heat collector and the room by selection via a fan, and can store the residual heat obtained by the solar heat collector, and can also radiate the heat to the room at night etc. This can further increase the efficiency of the device.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing one embodiment of the present invention, and FIG.
Figures a to 2f are diagrams showing the effect thereof, Figure 3 is a diagram showing another embodiment, and Figure 4 is a diagram showing a conventional example. 2...Solar heat collector, 3...Air outlet, 4...
Duct, 5... Fan, 6... Branch duct, 7...
...Underfloor space, 8... Heat storage tank, 9... Valve device, 10
...Air inlet.

Claims (1)

[Scope of Claims] 1. A fan that sends air from the air outlet toward the room is interposed in the duct connecting the air outlet of the solar heat collector and the room, and a fan is provided in the underfloor space on the upstream side of the fan of the duct. While connecting the communicating branch ducts, a valve device is provided between the duct and the branch duct to selectively conduct the air between the fan and the air outlet of the solar heat collector, and between the fan and the underfloor space. An air conditioner that connects the entrance to the room. 2. The air conditioner according to claim 1, wherein the duct is connected to a branch pipe leading to a heat storage tank on the downstream side of the fan.