JPS6316650B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an indoor heating and cooling circulation method, and more specifically, a double-glazed window is arranged in an opening facing the outdoors of a building, etc. This invention relates to a method for circulating cold and warm air while maintaining a balance between indoor and outdoor exhaust and intake air by arranging an air conditioner that communicates with the outdoors and switching the flow path of warm air from double-glazed windows.

BACKGROUND ART Conventionally, areas around the indoor side of window openings in buildings and the like often experience an abnormally high temperature atmosphere due to direct sunlight. Therefore, near the window, the radiant heat generated by direct sunlight not only makes the indoor temperature environment inappropriate, but also causes a reduction in the cooling effect of the room.

Therefore, conventionally, the blinds that are hung on the window are made of materials with high heat insulation effect.
In addition, methods have been adopted such as placing a fan coil unit near the window to reduce the Coanda effect, and even absorbing the radiant heat from the window into the blind box via a fan installed on the waist wall and circulating it indoors using an air conditioner. Also, a method has been adopted in which air is circulated inside the double sash and the heat around the window is recovered or exhausted by the circulating air.

However, all of these systems focus on reducing heat rise around windows by circulating and exhausting air, and although their control devices are complex,
This was not a method that actively contributed to improving cooling and heating effects.

Therefore, in the heating and cooling circulation method of the present invention, an air conditioner is placed at the lower part of the indoor side of the double-glazed window facing the outdoors,
This method of circulating cool and warm air indoors by driving an air conditioner maintains the best balance between indoor and outdoor air intake and exhaust, and during cooling/heating operation, warm air from inside the double-paned windows and a portion of the return air from the room are used. This system cools the rest of the return air inside the room and the outside air from outside before releasing it into the room.It also maintains the balance of intake and exhaust air even during heating operation, and uses a portion of the return air. The general idea is that the remaining air is discharged outside, and the remaining air is combined with outside air and warm air from the double-glazed windows to be heated and then released indoors.

In other words, by switching the warm air flow path of a double-glazed window, during cooling operation, the remainder of the indoor return air is returned to the room, reducing the cooling load.Furthermore, during heating operation, heat from around the window is actively taken in and returned to the outside. The heating load is reduced by heating the remaining air and warm air together and contributing to indoor heating.

Hereinafter, the heating and cooling circulation method of the present invention will be explained in detail based on the drawings.

FIG. 1 is a schematic cross-sectional view of an opening in a building or the like.

A double glass window 2 is provided in this building opening 1. This double glass window 2 has a pair of glass sashes 21 and 22 arranged at a constant interval on the outdoor side and the indoor side. A blind 23 is built in between the glass sashes 21 and 22 so that the inclination of its blades can be varied.

Moreover, an air intake port 24 is provided in the indoor side ceiling portion of the double-glazed window 2, and the indoor air flows from this air intake port 24.
air can be taken in.

On the other hand, a waist wall 3 made of a curtain wall or the like is provided at the bottom of the double-glazed window 2. An air conditioner 4 communicating with the inside of the double-glazed window 2 is installed on the indoor side of the waist wall 3. The air conditioner 4 has a structure that exhausts indoor air and supplies outdoor air using a blower fan and a motor drive switching damper, and releases air that has been cooled and heated by a cold/hot water coil into the room. .

Therefore, the return air port 41 is located at the bottom of the indoor side of the air conditioner 4.
A ventilation port 42 is opened at the upper side, and a communication port 43 is further provided to communicate with the inside of the double-glazed window 2 and take in warm air.

A switching damper is provided near the communication port 43, and is switched to the outdoor discharge circuit during cooling and to the indoor discharge circuit during heating.

In addition, an exhaust port 44 is provided on the back side of the air conditioner 4, at a portion that contacts the so-called waist wall 3, and this exhaust port 44
The indoor air discharged from the room is discharged to the outside through a louver opening 5 provided in the waist wall 3.

The cross-sectional schematic diagrams of FIGS. 2 and 3 illustrate the cooling and heating operation of the cooling and heating circulation system for the opening of a building constructed as described above.

FIG. 2 explains air circulation during cooling operation.

That is, the outer surface of the opening 1 is irradiated with direct sunlight, and the air inside the double-glazed window 2 is warmed. In such a state, in order to lower the temperature inside the room, the warm air A inside the double-glazed window 2 is taken in through the communication port 43 and transferred to the exhaust port 44 by the switching damper.
The air is then discharged to the outside through the return air louver 5.

That is, indoor air that is lower temperature than the air inside the double-glazed window 2 is taken in through the intake port 24, and warm air that has absorbed the temperature inside the double-glazed window 2 is discharged outside.

Moreover, at this time, the indoor return air B, which has lost its cooling capacity indoors and whose temperature has become higher than a predetermined value, is taken in from the return air port 41, and a part of it b ₁ is discharged outdoors together with the warm air A, while the indoor return air remainder of B
b ₂ is cooled by a cold water coil and discharged into the room from the air outlet 42. At this time, fresh air, so-called outside air C, is taken in from outside, similarly cooled by a cold water coil, and discharged into the room together with the remainder _b2 of return air B from the air outlet 42. If the total exhaust volume during cooling operation is P, then P is the sum of warm air A and a portion of indoor return air B ₁ (P =
A+b ₁ ), and if the total intake air amount is Q, then Q is outside air C (Q=C).

In order to achieve the best cooling efficiency, it is necessary to consider the balance between intake and exhaust volumes and maintain P=Q.

Moreover, at this time, if the ratio of the amount of air b ₂ discharged indoors to the indoor return air B, the so-called return air rate, is x ₁ (x ₁ = b ₂ /B), then P = B (1 - x ₁ )+A.

FIG. 3 explains air circulation during heating operation.

During heating operation, the flow path of warm air A is switched by a switching damper.

First, the return air B, which has lost its indoor heating ability and whose temperature has become lower than a predetermined value, is taken in from the return air port 41, and a part _of it is directly discharged from the exhaust port 44 to the outside via the return air louver port 5. Discharge. Then, the remaining portion _b2 , the outside air C, and the warm air A switched to the indoor discharge circuit are combined, heated by the hot water coil, and discharged indoors from the air outlet 42.

Even during this heating operation, it is necessary to make the total exhaust amount P and the total intake air amount Q equal in consideration of heating efficiency.

The total displacement P is a part b ₁ of the return air B (P=b ₁ ),
Further, the total intake air amount Q is the outside air C (Q=C).

Here, if the return air rate is x ₂ , then x ₂ = (A + b ₂ )/
B, P=B(1-x ₂ ), and the amount released from the air outlet 42 is Bx ₂ +C.

As mentioned above, during cooling operation, part of the return air that loses its cooling effect indoors due to the above balance of intake and exhaust volume.
b ₁ and the warm air A in the double-glazed window 2 are discharged outside, and the outside air C and the remainder of the indoor return air B ₂ are cooled by the chilled water coil, further increasing cooling efficiency. In other words, the cooling load itself is reduced.

On the other hand, even during heating operation, part of the return air _B1 that has lost its heating effect indoors is directly discharged outside, and the remaining part _b2 is transferred to the warm air A inside the double-glazed window 2.
Since the hot water coil and the outside air C are heated together and released into the room, the air released into the room can be sufficiently warmed without the need to raise the temperature of the hot water coil very high.

Therefore, the heating effect is improved, and as a result, the heating load itself is reduced. In this way, it is possible to reduce and actively utilize the radiant heat that flows in through the building openings, creating a uniform thermal environment around the indoor side of the building openings during cooling and heating. .

As described above, the heating and cooling circulation method of the present invention provides cooling,
The load is reduced during both heating and heating operations, resulting in a heating and cooling circulation method with unprecedented thermal efficiency.

[Brief explanation of the drawing]

Fig. 1 is a schematic cross-sectional view of an indoor heating and cooling circulation system installed in an opening in a building, Fig. 2 is a schematic diagram illustrating a circulation method during cooling operation, and Fig. 3 is a
It is a cross-sectional schematic diagram explaining the circulation method at the time of heating operation. 1...Building opening, 2...Double glass window, 3...Waist wall, 4...Air conditioner, 5...Gallery opening, A...Warm air, B...
Return air, b ₁ ... part of return air, b ₂ ... remainder of return air, C... outside air.

Claims (1)

[Claims] 1 A double glass window is placed in the opening facing the outdoors,
In this method, an air conditioner that communicates with the outdoors is placed at the bottom of the indoor side of the glass window, and the air conditioner circulates cool and warm air inside the room. At the same time, part of the return air and outside air are cooled and released indoors. During heating operation, part of the return air is exhausted outside, and the rest of the return air and outside air are cooled and released indoors. An indoor heating and cooling circulation method characterized by heating warm air from glass windows and releasing it indoors.