JP7377121B2 - ventilation system - Google Patents

Description

The present invention relates to a ventilation system that can reduce the amount of heat entering and exiting through windows while providing ventilation.

The indoor environment of the building was controlled using air conditioning equipment, but since a lot of heat enters and exits through the windows, increasing electricity costs, an economically superior solution was needed.

In view of the above-mentioned circumstances, it is an object of the present invention to provide a ventilation system that can reduce the amount of heat entering and exiting through windows and suppress the air conditioning load.

The ventilation system according to the invention according to claim 1 is provided with a plurality of double-glazed windows each consisting of an outer window and an inner window, and for each double-glazed window, an outdoor ventilation section that communicates from the outdoor space to an intermediate layer between the outer window and the inner window. and an indoor side ventilation section that communicates from the middle layer to the indoor space, a flow regulator is provided in the middle layer, and a fan is installed in at least one of the outdoor side ventilation section and the indoor side ventilation section of the full-double window. By rotating the fan, outside air flows through one double-glazed window in one direction along the inside surface of the outside window, turns around near the edge of the middle layer, and flows in the other direction along the outside surface of the inside window. The inside air flows in one direction along the outer surface of the inner window, turns around near the edge of the middle layer, and flows in the other direction along the inner surface of the outer window. It is characterized by the fact that it flows into the room and then flows out.

The ventilation system according to the invention according to claim 1 is provided with a plurality of double-glazed windows each consisting of an outer window and an inner window, and for each double-glazed window, an outdoor ventilation section that communicates from the outdoor space to an intermediate layer between the outer window and the inner window. and an indoor side ventilation section that communicates from the middle layer to the indoor space, a flow regulator is provided in the middle layer, and a fan is installed in at least one of the outdoor side ventilation section and the indoor side ventilation section of the full-double window. By rotating the fan, outside air flows through one double-glazed window in one direction along the inside surface of the outside window, turns around near the edge of the middle layer, and flows in the other direction along the outside surface of the inside window. The inside air flows in one direction along the outer surface of the inner window, turns around near the edge of the middle layer, and flows in the other direction along the inner surface of the outer window. In the winter, the heat that escapes from the indoors to the outdoors can be recovered, and in the summer, the heat that enters the indoors from the outdoors can be recovered and disposed of outside. It is possible to reduce heat transfer and reduce heating and cooling loads. By incorporating a fan into the outdoor ventilation section or the indoor ventilation section, it is easy to ensure the necessary amount of ventilation, and the effect of suppressing the heating and cooling load is thereby reliably exhibited. Outside air flows in through one double-glazed window and flows out through the other double-glazed window, allowing for efficient ventilation of the room.

FIG. 1 is a longitudinal sectional view showing a first embodiment of the ventilation system of the present invention. It is a plan view of a building in which the same ventilation system is installed. FIG. 3 is a vertical cross-sectional view of a double window on the air supply side. It is a cross-sectional view of the same double-glazed window. FIG. 3 is a vertical cross-sectional view of a double window on the exhaust side. (a) is an explanatory diagram showing the function of the double window on the air supply side in winter, and (b) is an explanatory diagram showing the function of the double window on the exhaust side in winter. (a) is an explanatory diagram showing the function of the double window on the air supply side in summer, and (b) is an explanatory diagram showing the function of the double window on the exhaust side in summer. (a) is a plan view of the ventilation brace provided above the inner window, (b) is a front view of the inside of the same room, and (c) is a sectional view taken along line AA. It is a longitudinal cross-sectional view which shows other embodiments of the double-glazed window on the air supply side. It is a longitudinal cross-sectional view which shows other embodiments of the double-glazed window on the exhaust side.

Embodiments of the present invention will be described below based on the drawings. 1 to 7 show a first embodiment of the ventilation system of the invention. As shown in Figs. 1 and 2, this ventilation system has a double-panel window consisting of an outer window 2 and an inner window 3 in the openings of one wall 8a and the other wall 8b facing the outdoors of one room 7. 1a and 1b are installed respectively, and outside air is taken into the room through one double-glazed window 1a, and inside air is discharged outside through the other double-glazed window 1b. In the intermediate layer 9 between the outer window 2 and the inner window 3, as shown in FIGS. 3 and 4, a honeycomb blind 10 as a flow regulator is suspended from above.

3 and 4 show the double window 1a on the air supply side. The outer window 2 includes a frame 11 fixed to the opening of the frame, and an outer shoji 12a and an inner shoji 12b housed within the frame 11 in a sliding manner so as to be openable and closable. The outer shoji 12a and the inner shoji 12b are constructed by assembling an upper stile 13, a lower stile 14, a door sill 15, and a closing stile 16, and fitting a glass 17 inside the stile. The upper stile 13 is a ventilation stile that has an outdoor ventilation section 4 that communicates with the middle layer 9 from the outdoor space.

As shown in FIGS. 3 and 4, the inner window 3 is made up of an upper frame 19 and a lower frame 20 attached to the inner circumferential side of the picture frame 18 around the four sides, and between the left and right vertical frames 21, 21 and the upper and lower frames 19, 20. It is equipped with an outer shoji 22a and an inner shoji 22b which are housed in a different shape so that they can be opened and closed. The frames 19, 20, 21 and the frames of the shoji 22a, 22b are made of resin. The glass 23 of the shoji 22a, 22b is double-glazed glass. Since there is a wooden frame 18 between the frame 11 of the outer window 2 and the frames 19, 20, 21 of the inner window 3, the outer window 2 and the inner window 3 are thermally separated.
A ventilation breather 24 is provided at the top of the upper frame 19. The ventilation breather 24 is provided with a large number of ventilation holes 25a, 25b on the outside and inside facing surfaces, and is provided with an indoor ventilation section 5 that communicates from the intermediate layer 9 to the indoor space. A filter 26 is provided on the indoor side of the indoor ventilation section 5 to prevent dust, pollen, etc. from entering.

A cross flow fan 6 is provided in the indoor ventilation section 5 of the inner window 3, as shown in FIGS. 3 and 8. The cross-flow fan 6 includes an impeller 27 that rotates around a horizontal axis and a drive unit 28 that rotates the impeller 27. By rotating the impeller 27 with the drive unit 28, the air flow from the ventilation hole 25a on the outdoor side The air in the intermediate layer 9 is sucked in, and the sucked air is blown into the room through the ventilation holes 25b on the indoor side. Reference numeral 31 in FIG. 8 is a knob for opening and closing the ventilation hole 25b.

As shown in FIG. 3, the honeycomb blind 10 is constructed in the form of a screen with a double honeycomb structure using polyester nonwoven fabric, and this screen creates a double air layer and exhibits a high heat insulation effect. Further, as shown in FIG. 4, the left and right side portions of the honeycomb blind 10 are guided by resin rails 29 attached along the frame 18 to improve airtightness. Therefore, the inside of the intermediate layer 9 is partitioned into an outdoor side and an indoor side by the honeycomb blind 10, the air on the outdoor side of the honeycomb blind 10 approaches the outdoor temperature, and the air on the indoor side of the honeycomb blind 10 approaches the indoor temperature. , a temperature difference occurs between the outdoor side and the indoor side of the honeycomb blind 10. A gap of approximately several centimeters is provided between the lower end of the honeycomb blind 10 and the frame 18. The honeycomb blind 10 can be expanded and contracted up and down by operating an operating section 30 from the indoor side.

As shown in FIG. 5, in the double window 1b on the exhaust side, a cross flow fan 6 installed in the indoor ventilation part 5 of the inner window 3 is connected to the ventilation hole 25b on the indoor side, contrary to the air supply side. Indoor air is sucked in, and the sucked air is blown out to the intermediate layer 9 through the ventilation holes 25a on the outdoor side. Other points are the same as the double-glazed windows 1a on the air supply side.

FIG. 6 shows the function of the double windows 1a and 1b on the air supply side and the exhaust side in winter. As shown in FIG. 6(a), the double window 1a on the air supply side rotates a fan 6 (not shown) so that the cold outside air flowing in from the outdoor side ventilation part 4 of the outside window 2 is passed through the honeycomb blind 10. After that, the cold outside air flows down the middle layer 9 along the inner surface of the glass 17 of the outer window 2 due to a cold draft, and then turns around, and the indoor heat is transmitted from the glass 23 of the inner window 3. The heated air rises along the outdoor side of the glass 23, and during this time the heat that escapes from the glass 23 to the outdoors is recovered by the air flow. In addition, when the double-glazed window 1a receives solar radiation, solar heat can be obtained while the outside air flows through the intermediate layer 9 along the inner surface of the outer window 2 and the outer surface of the inner window 3. can. Thereafter, the warmed outside air flows into the room through the indoor ventilation section 5 above the inner window 3. Even when the outside air passes through the indoor side ventilation part 5, the heat of the ventilation breather 24 and the upper frame 19 warmed by the heat inside the room is recovered by the air flow. The outside air, which was at 0° C., is thus heated to 18° C. while flowing through the intermediate layer 9 along the inner surface of the outer window 2 and the outer surface of the inner window 3. By bringing the warmed outside air into the room, the recovered heat can be returned to the room.
In this way, by detouring the outside air through the middle layer 9 along the inner surface of the outer window 2 and the outer surface of the inner window 3, solar heat can be obtained, and the heat transmitted from indoors to outdoors can be transferred to the air. By collecting the air and returning it indoors, there is almost no heat loss from indoors to outdoors, and this prevents heat transport from the indoor side to the outdoor side, which is the opposite direction to the direction of air inflow. In addition to providing extremely high insulation properties, the heating load can be reduced by heating the outside air before introducing it into the room.

On the other hand, in the double-glazed window 1b on the exhaust side, as shown in FIG. 6(b), by rotating the fan 6 (not shown), the inside air is drawn from the indoor side ventilation part 5 of the inner window 3 to the honeycomb blind 10. After that, the inside air flows downward along the outdoor side of the glass 23 of the inner window 3, turns around at the bottom of the intermediate layer 9, and rises along the indoor side of the glass 17 of the outer window 2, It passes through the outdoor ventilation section 4 of the exterior window 2 and is exhausted to the outside. In this way, by introducing warm inside air from the honeycomb blind 10 to the intermediate layer 9 on the indoor side and flowing it downward, the temperature of the intermediate layer 9 on the indoor side from the honeycomb blind 10 becomes almost the same as the indoor temperature. Heat loss from the double-glazed window 1b can be suppressed. Therefore, heating load can be reduced.

FIG. 7 shows the function of the double windows 1a and 1b on the air supply side and the exhaust side in summer. As shown in FIG. 7(b), the double window 1b on the exhaust side is configured to rotate a fan 6 (not shown) so that cold inside air is drawn from the indoor side vent 5 of the inner window 3 to the honeycomb blind 10. It is introduced into the intermediate layer 9. Since the temperature of the inside air is lower than that outside, it flows downward along the outside side of the glass 23 of the inner window 3, and then turns around at the bottom of the middle layer 9, where the heat from the glass 17 of the outside window 2 is transferred. It rises along the indoor side surface of the glass 17 of the exterior window 2, and during this time solar radiation heat is acquired, and the heat that enters the room from the outdoors through the glass 17 is recovered by air flow. The indoor air, which was at 25°C, receives solar heat while passing between the outer window 2 and the honeycomb blind 10 and is warmed to 46°C, and is then released outside through the outdoor ventilation part 4 of the outer window 2. be done. When the inside air passes through the outdoor ventilation part 4, the heat that comes into the room through the upper stile 13 is recovered by the air flow. Then, by releasing the inside air to the outside, the solar heat and the heat collected from the glass 17 and the upper stile 13 are thrown away to the outside. In this way, by allowing the inside air to flow along the inside surface of the outside window 2 and the outside surface of the inside window 3, it is possible to suppress the acquisition of solar heat, and the heat transmitted from outside to the inside of the room is recovered by the air flow, so that it can be used outside the room. By disposing of the air inside the room, heat transfer from the outside to the inside of the room, which is the opposite direction to the direction in which air flows out, is blocked, providing excellent insulation and keeping the room cool. Therefore, the cooling load can be reduced.

On the other hand, in the double-glazed window 1a on the air supply side, as shown in FIG. It hits the blind 10 and changes its flow downward, then flows along the inner surface of the glass 17 of the outer window 2 to below the intermediate layer 9, turns back, rises along the outdoor surface of the glass 23 of the inner window 3, and during this time The cold heat escaping from the glass 23 to the outside is recovered by air flow. As a result, the outside air, which was 30°C, is cooled to 27°C. Thereafter, the cooled outside air passes through the indoor ventilation section 5 above the inner window 3 and flows into the room. In this way, the cooling load can be reduced by passing outside air through the double-glazed windows 1a to recover cold heat and cooling the outside air before introducing it into the room.

In winter, it is preferable that the double-glazed windows 1a or 1b that receive sunlight be used as the air supply side, and the double-glazed windows 1a or 1b that do not receive solar radiation as the exhaust side. On the other hand, in the summer, it is preferable that the double-glazed window 1a or 1b that does not receive solar radiation be used as the air supply side, and the double-glazed window 1a or 1b that receives solar radiation as the exhaust side. Therefore, the fan 6 built into the indoor ventilation section 5 is designed to be able to rotate forward and backward to change the direction of air flow, and the double-glazed windows 1a on the air supply side and the double-glazed windows 1b on the exhaust side are installed depending on the season and time of day. You can make it switch.

In the above-mentioned embodiment, the fan 6 was provided in both the double window 1a on the air supply side and the double window 1b on the exhaust side, but if the room 7 is highly airtight, the double window 1a on the air supply side The fan 6 may be provided only in either the double window 1a or the double window 1b on the exhaust side. If the fan 6 is installed only on the double-panel window 1a on the air supply side, the positive pressure in the room will be created by rotating the fan 6 and introducing outside air into the room through the double-pane window 1a, Inside air is naturally exhausted to the outside through the double window 1b. In addition, if the fan 6 is installed only on the double-panel window 1b on the exhaust side, rotating the fan 6 and discharging the inside air from the double-pane window 1b to the outside creates a negative pressure inside the room, so the other side Outside air is naturally introduced into the room through the double-glazed windows 1a. In addition, if the fan 6 is provided in both the double-panel windows 1a and 1b as in the embodiment, a constant air flow rate can be ensured in each double-panel window 1a and 1b regardless of the airtightness of the room 7, and ventilation can be improved. Can be done properly.

FIG. 9 shows another embodiment of the double-glazed window 1a on the air supply side. In this embodiment, instead of providing a ventilation section in the exterior window 2, an outdoor ventilation section 4 is provided extending from the outer wall 31 to the intermediate layer 9. A propeller fan 35 is provided inside the outdoor ventilation section 4, and a pressure chamber 33 is provided so as to surround the indoor side of the propeller fan 35. The pressure chamber 33 is formed into a hexahedral box shape using a heat insulating plate material such as styrofoam, and has heat insulating properties and airtightness. By providing the pressure chamber 33 in this way, the air sucked in by the propeller fan 35 is confined in the space inside the pressure chamber 33, increasing the pressure, and the air is released from the vent 32 provided on the bottom side of the pressure chamber 33. It flows out to the intermediate layer 9. By rotating the propeller fan 35 in the opposite direction, the double-glazed window 1a can also cause inside air to flow from indoors to outdoors, contrary to the arrow in the figure.

FIG. 10 shows another embodiment of the double-glazed window 1b on the exhaust side. In this embodiment, instead of providing a ventilation section in the inner window 3, an indoor ventilation section 5 is provided extending from the inner wall 34 to the intermediate layer 9. A propeller fan 35 is provided inside the indoor ventilation section 5. By rotating the propeller fan 35 in the opposite direction, the double-glazed window 1b can also cause outside air to flow from the outside into the room, contrary to the arrow in the figure.

As described above, this ventilation system includes an outer window 2, an inner window 3, and a flow regulator 10. , has an indoor ventilation section 5 communicating from the intermediate layer 9 to the indoor space, a flow regulator 10 is provided in the intermediate layer 9, and fans 6, 35 are provided in the outdoor ventilation section 4 or the indoor ventilation section 5. By rotating the fans 6 and 35, outside air flows in one direction along the inner surface of the outer window 2, turns around near the end of the intermediate layer 9, and flows in the other direction along the outer surface of the inner window 3. Either the inside air flows in one direction along the outer surface of the inner window 3, turns around near the end of the intermediate layer 9, flows in the other direction along the inner surface of the outer window 2, and then flows into the room. By flowing outside, the heat that escapes from indoors to the outdoors can be recovered in the winter (see Figure 6 (a)), and the heat that enters the room from the outdoors can be recovered and discarded outdoors in the summer (see Figure 6 (a)). (see FIG. 7(b)), this reduces the amount of heat entering and exiting through the windows, and reduces the heating and cooling load. By incorporating the fans 6, 35 into the outdoor side ventilation section 4 or the indoor side ventilation section 5, it is easy to ensure the necessary amount of ventilation, and the effect of suppressing the heating and cooling load is thereby reliably exhibited.
In addition, this ventilation system includes a plurality of double-glazed windows 1a and 1b consisting of an outer window 2 and an inner window 3, and for each double-glazed window 1a and 1b, an intermediate layer between the outer window 2 and the inner window 3 is provided from the outdoor space. 9, and an indoor side ventilation section 5 that communicates from the middle layer 9 to the indoor space, and a flow regulator 10 is provided in the middle layer 9, and the outdoor side ventilation of the full-double windows 1a, 1b is provided. Fans 6 and 35 are provided in at least one of the section 4 and the indoor ventilation section 5, and by rotating the fans 6 and 35, outside air is directed to the inside surface of the outside window 2 through one of the double-glazed windows 1a. It flows in one direction along the middle layer 9, turns around near the end of the intermediate layer 9, flows in the other direction along the outer surface of the inner window 3, and then flows into the room, and the inside air flows through the other double window 1b. It flows in one direction along the outside surface, turns around near the edge of the intermediate layer 9, flows in the other direction along the inside surface of the exterior window 2, and then flows outside, so that one double-glazed window is closed in winter. (Double window on the air supply side) 1a recovers the heat that escapes from indoors to the outdoors (see Figure 6 (a)), and in summer, the other double window (double window on the exhaust side) 2b is used to transfer heat from the outdoors into the room. The heat that enters the window can be recovered and discarded outside (see Figure 7(b)), thereby reducing the amount of heat entering and exiting through the windows and reducing the heating and cooling load. By incorporating a fan into the outdoor ventilation section 4 or the indoor ventilation section 5, it is easy to ensure the necessary amount of ventilation, and the effect of suppressing the heating and cooling load is thereby reliably exhibited. Since outside air flows in through one double-glazed window 1a and outside air flows out through the other double-glazed window 1b, the room can be efficiently ventilated.
In this ventilation system, a plurality of double-glazed windows 1a and 1b are provided on walls in different directions of the room 7, so that the entire air in the room 7 can be efficiently ventilated. Further, since a fan 6 is incorporated in each of the double-glazed windows 1a and 1b, ventilation can be performed regardless of the airtightness of the room 7.
The embodiment shown in FIGS. 3 and 5 has an outdoor ventilation section 4 in the outer window 2 that communicates from the outdoor space to the intermediate layer 9, and an indoor ventilation section 5 that communicates from the intermediate layer 9 to the indoor space in the inner window 3. Since the fan 6 is installed in the outdoor side ventilation section 4 or the indoor side ventilation section 5 (the one shown has the fan 6 installed in the indoor side ventilation section 5), in order to install the fan 6, it is necessary to install the fan 6 on the wall. Construction is easy because there is no need to drill holes in the structure and it is only necessary to install the outer window 2 and inner window 3 in the opening of the frame.

The invention is not limited to the embodiments described above. The structures of the outer window and the inner window can be changed as appropriate, and are not limited to sliding windows, but may also be casement windows, interlocking windows, etc. The frames of the outer window and the inner window may be integrally formed.
In the claims, "folding back near the end of the intermediate layer" includes, for example, when the frame of the outer window and the frame of the inner window are integrally formed, folding back on the inner periphery side of the frame; This includes anything that passes through the interior and turns around.
The outdoor ventilation section and the indoor ventilation section may be provided anywhere. The fan may be provided in the ventilation section of the outside window (outdoor ventilation section). The structure of the fan can be modified as appropriate.
The flow regulator prevents the falling air and rising air between the outer and inner windows from colliding and obstructing the air flow, and detours the air along the inner surface of the outer window and the outer surface of the inner window. Any material may be used as long as it can form a flow of air, and in addition to plate-shaped objects and blinds, screens such as roll screens may be used.
The ventilation system of the present invention is not limited to having a plurality of double-glazed windows, but can also be configured with only one double-glazed window. In addition, when multiple double-glazed windows are provided, the number of double-glazed windows is not limited to two, but may be three or more, and at least one of the double-glazed windows has an outdoor ventilation section or an indoor ventilation section. It would be good if there was a fan installed.

1a, 1b Double window 2 External window 3 Inner window 4 Outdoor ventilation section 5 Indoor ventilation section 6 Cross flow fan (fan)
10 Honeycomb blind (fluid rectifier)
35 Propeller fan (fan)

Claims (1)

It is equipped with multiple double-glazed windows consisting of an external window and an internal window, and for each double-glazed window, there is an outdoor ventilation section that leads from the outdoor space to the middle layer between the outside window and the inner window, and an indoor side that leads from the middle layer to the indoor space. In addition to having a ventilation part, a flow regulator is provided in the intermediate layer, and a fan is provided in at least one of the outdoor ventilation part and the indoor ventilation part of the full-double window, and by rotating the fan, In one double-glazed window, outside air flows in one direction along the inside surface of the outside window, turns around near the edge of the middle layer, flows in the other direction along the outside surface of the inside window, and then flows into the room, and then flows into the room in the other direction. Double-glazed windows are characterized by the fact that the inside air flows in one direction along the outer surface of the inner window, turns around near the edge of the middle layer, flows in the other direction along the inner surface of the outer window, and then flows outside. ventilation system.

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