JP7208824B2 - Air conditioner using air flow window - Google Patents

Description

Article 30, Paragraph 2 of the Patent Law applies https://www. okumuragumi. co. jp/environment/report/2018/, https://www. okumuragumi. co. jp/environment/report/2018/pdf/2018_h1. pdf, https://www. okumuragumi. co. jp/environment/report/2018/pdf/2018_p01-02. pdf, https://www. okumuragumi. co. jp/environment/report/2018/pdf/2018_p35-36. pdf, https://www. okumuragumi. co. jp/environment/report/2018/pdf/2018_p38. pdf, https://www. okumuragumi. co. jp/environment/report/2018/pdf/2018_h4. pdf, October 1, 2018

The present invention is capable of appropriately handling the window air in the airflow window throughout the year, and in the winter season, the heat of the window air can be used to suit the air conditioning of the interior zone. The present invention relates to an air conditioner using a window.

Patent Documents 1 and 2 are known as air-conditioning techniques using heat such as solar radiation near a window. Patent Document 1, "Perimeter area air conditioning method and air conditioning apparatus for implementing the air conditioning method" forms an air curtain without using an air conditioning apparatus dedicated to the perimeter area and improves the temperature environment in the perimeter area. For this purpose, the indoor unit installed in the perimeter area draws in the room air from the suction port and blows it upward from the air outlet. Then, it is exhausted from the exhaust duct together with the external air load. At that time, the primary air for the interior area sent from the branch duct to the downstream side of the fan in the air passage is supplied. In this way, a larger amount of air than the air sucked in from the suction port of the indoor unit is blown out from the blowout port, forming an air curtain between the blowout port and the exhaust port. In addition, the temperature environment in the perimeter area is improved by taking in the outside air load and adding a load (primary air for the interior area) that counters the outside air load to the circulating flow that circulates between the air outlet and the intake opening. ing.

Patent Document 2, "Perimeter Interior Air Conditioner and Air Conditioning Method", is perimeter-less air conditioning that enables the thermal environment of the perimeter zone to be controlled by the interior air conditioner, and realizes a comfortable thermal environment even if the perimeter air conditioner is omitted. It is an object of the present invention to provide a perimeter/interior air-conditioning system and air-conditioning method capable of controlling perimeter/interior air-conditioning, comprising an interior air-conditioning system for air-conditioning an interior zone in a building provided with double-glazed windows having blinds between outer and inner windows, and An exhaust device is provided for exhausting the air in the double window to the outside, the exhaust device is installed so as to be able to exhaust air from the air layer between the outer window and the blind, and the interior air conditioner is installed to exhaust the air between the inner window and the blind. It constitutes a perimeter interior air conditioner configured to allow air to be selectively drawn from the layers.

JP-A-7-167460 JP-A-2002-147793

As can be understood from the background art, the thermal environment in the perimeter zone is hotter in the summer than in the middle of spring and autumn due to the effects of sunlight, etc., and it may feel hot even in the winter. Various countermeasures have been taken.

As a countermeasure, double-glazed windows such as airflow windows are used, but in this airflow window, the air inside the window becomes considerably hot, so in the summer, the air is simply exhausted, while in the winter, the heat is released. should be used for indoor air conditioning. In particular, it is desirable to utilize window air as heat so as to suit the air conditioning of the interior zone away from the windows.

For example, in winter, it is conceivable to draw the window air as it is and blow it into the interior zone that is already warmed by the indoor air conditioning. The window air will mix in the room, and the interior zone will become a thermal environment with uneven temperature, which may cause discomfort. Implementing the system was difficult.

SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned problems of the prior art. To provide an air conditioner using an air flow window that can be used so as to suit the air conditioning of a room.

An air conditioner using an airflow window according to the present invention comprises an airflow window in the form of a hollow chamber formed by sandwiching a pair of inner and outer glasses between an upper and lower frame, allowing ventilation, and a room space having the airflow window from the airflow window. and a first fan for circulating the window air in the airflow window toward the outside of the room space, and a suction provided near the airflow window. A second flow having an air outlet spaced apart from a mouth and the air flow window, and a second fan circulating room air from the air inlet toward the air outlet to circulate in the room space. and a flow path switch provided in the first flow path on the discharge side of the first fan for switching communication/blocking of the first flow path with the second flow path. means , an outdoor air conditioner for introducing outside air into the room space, and a control device for controlling the operation of the first fan, the operation of the second fan, and the switching operation of the flow path switching means, wherein the control A CO2 concentration is input to the device from a CO2 sensor that measures the CO2 concentration in the room space, and the control device controls the flow to introduce outside air into the room space when the CO2 concentration is equal to or higher than a set value. an outside air introduction mode in which the path switching means cuts off the second flow path from the first flow path, stops the first fan and the second fan, and operates the outdoor air conditioner; and a window section. In order to discharge air to the outside of the room space, the second flow path is cut off from the first flow path, the second fan is stopped, and the outdoor air conditioner and the first fan are operated. is set to one of the ventilation modes to operate .

Temperature measurement values are input to the control device from a first temperature sensor that measures the temperature inside the window portion of the airflow window and a second temperature sensor that measures the temperature inside the room space. When the temperature is higher than the temperature in the room space, in order to supply the window air to the room space, the flow channel switching means connects the first flow channel to the second flow channel, and the The first circulation mode is set to operate the first fan while the second fan is stopped; when the temperature in the room space rises in the first circulation mode, the room air is mixed with the window air. In order to circulate, set to the second circulation mode in which the operation of the second fan is added; when the temperature inside the window part is lower than the temperature inside the room space, the first fan and the second fan are stopped It is characterized in that it is set to a stop mode that

When the CO2 concentration is less than a set value, the control device stops the operation of the outdoor air conditioner, and selects one of the first circulation mode, the second circulation mode, and the stop mode according to the indoor temperature. It is characterized by being set to either.

In the air conditioner using the airflow window according to the present invention, the window air in the airflow window can be handled appropriately throughout the year, and the heat of the window air is suitable for the air conditioning of the interior zone in winter. can be used to

1 is a schematic plan view showing a first embodiment of an air conditioner using an airflow window according to the present invention; FIG. Fig. 2 is a side view of the air conditioner using the airflow window shown in Fig. 1, Fig. 2(A) shows the operating state of the outdoor air conditioner, and Fig. 2(B) shows the state of the second circulation mode. It is an explanatory view explaining. FIG. 7 is a configuration diagram of a control system including a control device provided in a second embodiment of an air conditioner using an airflow window according to the present invention; FIG. 4 is an explanatory diagram for explaining the contents of control by the control device shown in FIG. 3; FIG. 11 is an explanatory diagram for explaining control contents including an outdoor air conditioner provided in a third embodiment of an air conditioner using an airflow window according to the present invention; 6A and 6B are graphs showing the test results of the third embodiment shown in FIG. 5, in which FIG. 6A shows the situation in the intermediate season and FIG.

A preferred embodiment of an air conditioner using an airflow window according to the present invention will be described in detail below with reference to the accompanying drawings. 1 and 2 show a first embodiment.

As shown in FIGS. 1 and 2, the building 1 has a ceiling 4 provided between the floor slab 2 and the floor slab 3 of the immediately upper floor, and the ceiling 4 provided under the floor slab 3 of the immediately upper floor. A pair of partition walls 5 provided at intervals from each other toward the back of the building 1 from the side facing the building 1, an air flow window 6 provided in an opening facing the outside of the building 1, A room space 9 is formed on the side opposite to the air flow window 6 and partitioned by a corridor side wall 8 partitioned from a corridor 7 inside the building 1.例文帳に追加

The airflow window 6 is arranged, for example, between a pair of partition walls 5 and sandwiched between the floor slab 2 and the floor slab 3 of the immediately above floor by a pair of inner and outer glasses 10 to form a hollow chamber. A ventilation passage (not shown) communicating with the room space 9 is formed in the lower part of the airflow window 6 so as to allow ventilation inside the airflow window 6 . A blind 11 is provided inside the airflow window 6 in order to adjust the amount of solar radiation to the room space 9 .

In the ceiling space 12 formed between the ceiling 4 of the room space 9 and the floor slab 3 of the floor immediately above, a first flow path 13 having one end communicated with the inside of the air flow window 6 extends outward from the room space 9. extended over the The first flow path 13 is composed of a duct or the like. In the middle of the first flow path 13, in order to circulate the window air in the airflow window 6 toward the outside of the room space 9, the window air is sucked from the airflow window 6 and directed to the outside of the room space 9. A first fan 14 is provided which discharges towards.

In the ceiling space 12, a suction port 15a is provided near the air flow window 6, that is, on the perimeter zone side, and a suction port 15a is provided away from the air flow window 6, that is, on the interior zone side of the interior space behind the perimeter zone. A second flow path 15 having an outlet 15b is provided.

The second flow path 15 is configured by a duct or the like and provided in parallel with the first flow path 13 . The suction port 15a and the blowout port 15b are arranged in openings formed in the ceiling 4 . In the middle of the second flow path 15, the air in the room space, that is, the room air is sucked from the suction port 15a on the perimeter zone side, circulated toward the outlet port 15b, and blown out to the interior zone side. A second fan 16 is provided to circulate the air into the room space 9 .

In the ceiling space 12 , a channel switching means 17 is provided in the first channel 13 so as to be positioned on the discharge side 14 a of the first fan 14 . The flow path switching means 17 is connected to the discharge side 16 a of the second fan 16 . In the illustrated example, the second flow path 15 is connected to flow path switching means 17 via a branch flow path 18 branched from the second flow path 15 . The branch channel 18 is also configured by a duct or the like.

The flow path switching means 17 opens the first flow path 13 and closes the branch flow path 18 in order to communicate the first flow path 13 from the side of the airflow window 6 to the outside of the chamber space 9. a first switching position for blocking the first flow path 13 from the second flow path 15; 18 is opened and the first flow path 13 is blocked to communicate the first flow path 13 with the second flow path 15.

The channel switching means 17 is composed of a damper mechanism or the like for closing or opening the channel.

To explain the action of the first embodiment, as a first action, for example, in summer, the indoor temperature is maintained at an appropriate temperature lower than the outdoor temperature by indoor air conditioning by an indoor air conditioner, and the window section air is maintained. When the temperature is high, the channel switching means 17 is set to the first switching position, and the window air is circulated through the first channel 13 by the first fan 14 and exhausted to the outside of the room space 9 . The thermal environment of the room space 9 can be relaxed by this exhaust.

On the other hand, as a second action, for example, in winter, when the indoor temperature is maintained at an appropriate temperature higher than the outdoor temperature by the indoor air conditioning by the indoor air conditioner, and the temperature of the window air is high due to solar radiation etc., The flow path switching means 17 is set to the second switching position, and the first fan 14 circulates the window air from the first flow path 13 to the second flow path 15 (the second fan 16 is stopped). , to the room space 9 (interior zone) from the outlet 15b. By this blowing, the thermal environment of the room space 9 and the indoor air conditioning load can be alleviated.

Furthermore, in the case of the second action, when the room temperature is maintained by the room air conditioning and the temperature of the window air is considerably high, the window air is blown directly into the room space 9, and is blown out. Thermal lumps of the air in the window area are scattered in the room space 9, causing temperature unevenness and possibly impairing comfort.

In such a case, as a third action, the flow path switching means 17 is set to the second switching position, and the window section air is circulated from the first flow path 13 to the second flow path 15 by the first fan 14. At the same time, the indoor air is circulated through the second flow path 15 by the second fan 16 . In this way, the window air can be mixed with the circulating indoor air, and by blowing out the mixed hot air from the blowout port 15b, the comfort of the thermal environment in the room space 9 can be improved. .

These first to third actions are not limited to the above examples, and can be easily created at any time by operating the first fan 14, operating the second fan 16, and switching the flow path switching means 17. Thus, the indoor space 9 can be kept in a favorable thermal environment throughout the four seasons.

Next, a second embodiment of an air conditioner using an airflow window according to the present invention will be described with reference to FIGS. 1 to 3. FIG. In the second embodiment, the air conditioner of the first embodiment is provided with a control device 19 for controlling the operation of the first fan 14, the operation of the second fan 16, and the switching operation of the flow path switching means 17. be.

Accordingly, control signals are output from the control device 19 to the first and second fans 14 and 16 and the flow path switching means 17 . In the illustrated example, the control device 19 is installed in the ceiling space 12 .

Temperature measurement values are input to the controller 19 from a first temperature sensor 20 that measures the temperature inside the airflow window 6 and a second temperature sensor 21 that measures the temperature inside the room.

As shown in FIG. 2, the first temperature sensor 20 is provided inside the airflow window 6, and the temperature measurement value of the temperature inside the window is wirelessly input to the control device 19. As shown in FIG. A second temperature sensor 21 is provided in the perimeter zone, and the temperature measurement value of the room temperature is wirelessly input to the control device 19 .

In the illustrated example, an additional temperature sensor 22 is provided in the interior zone, and the temperature measurement value of the room temperature measured by this additional temperature sensor 22 is wirelessly input to the control device 19. may

The control device 19 is configured to set the air conditioning mode to the following three modes (see also FIG. 4).

(1) First circulation mode: When the temperature inside the window is higher than the temperature inside the room space, the channel switching means 17 is set to the second switching position to connect the first channel 13 to the second channel 15. At the same time, the first fan 14 is driven (operated) while the second fan 16 is stopped. As a result, the window air can be supplied to the room space 9, and the air conditioning control of the second effect can be achieved.

(2) Second circulation mode: When the temperature in the room space rises in the first circulation mode (second action), the second fan 16 is additionally operated (operated). As a result, the room air can be mixed with the window air and circulated to the room space 9, and the air conditioning control of the third function can be achieved.

For example, when the temperature inside the window is much higher than the temperature inside the room, such as in summer, or when the temperature inside the window is lower than the temperature inside the room, even in winter, the window air is blown into the room 9. Since this is undesirable, the controller 19 is configured to allow operation in one of two modes in these cases from temperature measurements of the window temperature.

(3) Ventilation mode: The flow path switching means 17 is set to the first switching position, the first fan 14 is operated, and the window section air is directed outward from the air flow window 6 through the first flow path 13 to the outside of the room space 9. to the

(4) Stop mode: the operation of the first and second fans 14, 16 is stopped. The channel switching means 17 may be in either the first switching position or the second switching position. By discharging high-temperature window air, the air conditioning load can be reduced, and by stopping operation, energy saving can be ensured.

In the air conditioner using the airflow window according to the second embodiment, the air conditioner of the first embodiment is appropriately controlled based on the temperature inside the window and the temperature inside the room space, and the room space 9 having a favorable thermal environment. can do.

Next, a third embodiment of an air conditioner using an airflow window according to the present invention will be described with reference to FIGS. The third embodiment is configured by combining the air conditioner of the second embodiment with an outdoor air conditioner 23 that introduces outside air into the room space 9 . When outside air from the outdoor air conditioner 23 is introduced into the room space 9, part of it is taken into the ventilable airflow window 6 and becomes window air.

A CO2 sensor 24 for measuring the CO2 concentration in the room space 9 is provided in the room space 9, and the CO2 concentration is wirelessly input from the CO2 sensor 24 to the controller 19 and the outdoor air conditioner 23. The outdoor air conditioner 23 is automatically controlled by itself, and is operated (operated) when the CO2 concentration is equal to or higher than a set value, for example, 1,000 ppm, and is stopped when the concentration is less than the set value.

When the CO2 concentration is less than the set value, the control device 19 selects one of (1) the first circulation mode, (2) the second circulation mode, and (4) the stop mode, and stops the second circulation mode. When the CO2 concentration is equal to or higher than the set value, it is configured to interlock with the outdoor air conditioner 23 to set the above-mentioned (3) ventilation mode.

Referring to FIGS. 4 and 5, the flow of air conditioning control will be described. Operation is initiated from the stop mode in one of the switching positions, in the illustrated example the second switching position.

When the CO2 concentration is equal to or higher than the set value, the control device 19 sets the flow path switching means 17 to the first switching position (exhaust), and keeps the first and second fans 14 and 16 stopped. , the outdoor air conditioner 23 starts operating when the CO2 concentration is equal to or higher than the set value.

As a result, outside air introduction mode (A2) is entered, outside air can be introduced into the room space 9, and the CO2 concentration can be lowered. A part of the introduced outside air flows into the airflow window 6 and is discharged to the outside through the gap of the room space 9 .

When the temperature inside the window is high in summer or low in winter, the control device 19 executes (3) ventilation mode (A1). (3) In the ventilation mode, the outside air is introduced into the room space 9 by the outdoor air conditioner 23, and at the same time, the control means 19 sets the flow path switching means 17 to the first switching position as described above, and sets the flow path switching means 17 to the second switching position. The first fan 14 is operated while the fan 16 is kept stopped. As a result, the window air can be discharged to the outside of the room space 9, and the CO2 concentration can be lowered.

When the CO2 concentration is less than a predetermined value, the operation of the outdoor air conditioner 23 itself is automatically stopped. The control device 19 selects (1) the first circulation mode (B1) according to the indoor temperature relative to the temperature inside the window, specifically when the temperature inside the window is higher than the temperature inside the room. (2) Second circulation mode (B2) is executed when the indoor temperature rises in this state.

As a result, the room temperature in the room space 9 having the airflow window 6 can be optimized.

Further, when the CO2 concentration is less than the predetermined value and the temperature inside the window portion is lower than the temperature inside the room space, the control device 19 executes the above (4) stop mode (C), thereby saving energy. can be ensured.

In the above control, the measured value of the CO2 concentration, the temperature inside the window and the temperature inside the room are always compared, and loop processing is performed.

FIG. 6 is a graph showing test results of an air conditioner using an airflow window according to this embodiment. FIG. 6(A) is the result obtained in the middle of spring or autumn, and FIG. 6(B) is the result obtained in winter. The vertical axis represents the temperature, and the horizontal axis represents the passage of time in a day.

In the intermediate period of FIG. 6(A), the control shifts in order of stop mode (C)→first circulation mode (B1)→second circulation mode (B2)→outside air introduction mode (A2)→stop mode (C). bottom.

In response to the temperature rise in the window around noon, the control device 19 sets (1) the first circulation mode (B1), and the window air in the first flow path 13 is changed to the second flow. Via the path 15, it was blown out into the room space 9. The temperature of the air blown out from the outlet 15b was about 34 to 35° C., and the temperature in the room began to rise.

The controller 19 continued to set (2) the second circulation mode (B2), and the mixed air of the circulating room air and the window air was blown out into the room space 9 . The temperature of the air blown out from the blowout port 15b decreased by 3.5°C to about 31°C, and the tendency of the room temperature to rise was suppressed.

In the winter season of FIG. 6(B), the control in the same time zone as above shifted in order of ventilation mode (A1) → first circulation mode (B1) → second circulation mode (B2) → ventilation mode (A1).

The temperature inside the window changes according to the amount of solar radiation and the like. The control device 19, which had been set to the ventilation mode (A1), shifts to (1) the first circulation mode 1 (B1), and the window section air of the first flow path 13 flows through the second flow path 15 , was blown out into the room space 9 . The temperature of the blown air at the blowout port 15b was about 32-33.degree.

The controller 19 continued to set (2) the second circulation mode (B2), and the mixed air of the circulating room air and the window air was blown out into the room space 9 . The temperature of the air blown out from the blowout port 15b decreased by 3.0°C to about 30°C, and the temperature in the room space was kept substantially constant.

The air conditioner using the airflow window according to the third embodiment can be combined with the outdoor air conditioner 23 to appropriately control the air conditioner of the second embodiment to create a room space with a favorable thermal environment.

In the air conditioner using the airflow window according to all the embodiments described above, the air in the window portion of the airflow window 6 is simply exhausted in summer, while the heat is used for indoor air conditioning in winter. can be done. Since the outlet 15b of the second flow path 15 is provided in the interior zone away from the window side, the window air can be used as heat to suit the air conditioning of the zone.

In winter, air conditioning is performed not only by taking in the window air as it is and blowing it into the interior zone warmed by the indoor air conditioning, but also by blowing the circulating indoor air and the window air in a mixed manner. It is possible to prevent the interior zone from becoming a thermal environment with uneven temperature, and realize a comfortable air-conditioning system using the thermal heat of the window air.

That is, the window air in the airflow window 6 can be appropriately handled throughout the year, and in winter, the heat of the window air can be used to suit the air conditioning of the interior zone. It can create a comfortable thermal environment.

2 floor slab 3 floor slab immediately above 6 airflow window 9 room space 10 glass 13 first channel 14 first fan 14a discharge side of first fan 15 second channel 15a suction port 15b outlet 16 second 2 fan 17 flow path switching means 19 control device 20 first temperature sensor 21 second temperature sensor 23 outdoor air conditioner 24 CO2 sensor

Claims (3)

An airflow window in the form of a hollow chamber that is formed between a pair of inner and outer glass sandwiched between the upper and lower frames, and that can be ventilated;
a first flow path extending from the airflow window to the outside of a room space having the airflow window, and for circulating the window section air in the airflow window toward the outside of the room space with a first fan; ,
A suction port provided close to the air flow window and an air outlet provided away from the air flow window, and a second fan circulates room air from the suction port toward the air outlet. a second flow path for circulating in the chamber space;
a flow path switching means provided in the first flow path on the discharge side of the first fan for switching communication/blocking of the first flow path with respect to the second flow path ;
an outdoor air conditioner that introduces outside air into the room space;
A control device for controlling the operation of the first fan, the operation of the second fan, and the switching operation of the flow path switching means,
The control device receives a CO2 concentration from a CO2 sensor that measures the CO2 concentration in the room space,
The control device is
When the CO2 concentration is equal to or higher than a set value, the flow path switching means blocks the second flow path from the first flow path and the first fan and An outside air introduction mode in which the second fan is stopped and the outdoor air conditioner is operated, and in order to discharge the window air to the outside of the room space, the first flow path is changed to the second flow path. and the second fan is stopped, and the outdoor air conditioner and the first fan are operated . Temperature measurement values are input to the control device from a first temperature sensor that measures the temperature inside the airflow window and a second temperature sensor that measures the temperature inside the room,
The control device is
when the temperature in the window portion is higher than the temperature in the room space, the first flow channel is communicated with the second flow channel by the flow channel switching means in order to supply the window air to the room space; and setting a first circulation mode in which the first fan is operated while the second fan is stopped,
When the temperature in the indoor space rises in the first circulation mode, the second circulation mode is set to add the operation of the second fan in order to mix and circulate the indoor air with the window air,
2. The air-conditioning system using an airflow window according to claim 1, wherein when the temperature inside the window is lower than the temperature inside the room, a stop mode is set to stop the first fan and the second fan. Device. The control device is
When the CO2 concentration is less than the set value, the operation of the outdoor air conditioner is stopped, and one of the first circulation mode, the second circulation mode, and the stop mode is set according to the temperature in the room space. An air conditioner using an air flow window according to claim 2, characterized in that:

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