JP2022130836A - Ventilation system - Google Patents

Abstract

To provide a ventilation system that ventilates an airflow so as to block a space between users who sit so as to face each other, without providing a physical partition.SOLUTION: A ventilation system 1 comprises: a pair of seat parts 8 on which users U can sit so as to face each other across a desk 4 in an open space; a pair of blowout ports 6 that blows out airflows (first airflow 7a, second airflow 7b) in an upper space S1 of the pair of seat parts 8; and a suction port 10 that suctions the airflows blown out from the pair of blowout ports 6 in a lower space S2 of the desk 4. The pair of blowout ports 6 make the airflows blown out collide with each other in directions approaching each other to generate a merged airflow 7c in a direction from the upper space S1 toward the desk 4, and the merged airflow 7c flows from the upper surface of the desk 4 into the lower space S2 and is suctioned into the suction port 10.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a blower system that blows an airflow so as to block a space between users seated facing each other.

In recent years, with the spread of new coronavirus infections, reducing the risk of infection has become a social issue. During a meeting or meeting, there are many opportunities for users to sit facing each other across the desk, but it has been pointed out that even if users are wearing masks, aerosols containing viruses may leak through the gaps in the masks. ing. For this reason, it is common to install transparent partitions on desks between users to reduce the risk of infection from aerosols. As such a partition, for example, a transparent partition plate equipped with a sterilization device has been studied (for example, Patent Document 1).

Japanese Patent No. 6808159

However, in the case of partitions using partition plates, there is a problem that when users who are seated facing each other across the desk have a conversation, it is difficult to hear the conversation because the sound is blocked by the partition.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a blower system that blows an airflow so as to block the space between users seated facing each other without providing a physical partition. It is.

In order to achieve this object, the ventilation system according to the present invention includes a pair of seats in which a user can sit facing each other across a desk in an open space, and a space above the pair of seats. , each of which blows out an airflow, and a suction port for sucking the airflow blown out from the pair of blowout ports in the space below the desk. The pair of air outlets collide the air flows blown out in directions approaching each other to generate a merged air flow in a direction from the upper space toward the desk, and the merged air flow flows from the upper surface of the desk to the lower space. It turns around and is sucked into the suction port. This achieves the intended purpose.

ADVANTAGE OF THE INVENTION According to this invention, the ventilation system which ventilates an airflow so that the space between the users who sit facing each other may be interrupted can be provided, without providing a physical partition.

FIG. 1 is a schematic cross-sectional view showing the configuration of a blower system according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional plan view showing an air blowing unit that constitutes the air blowing system. FIG. 3 is a cross-sectional plan view showing a base that constitutes the air blowing system.

The air blowing system according to the present invention includes a pair of seats in an open space on which a user can sit facing each other across a desk, and a pair of air blowers in the space above the pair of seats, each of which blows an air flow. It has an outlet and a suction port for sucking the air flow blown out from the pair of outlets in the space below the desk. The pair of air outlets collide the air flows blown out in directions approaching each other to generate a merged air flow in a direction from the upper space toward the desk, and the merged air flow flows from the upper surface of the desk to the lower space. around and sucked into the suction port.

According to such a configuration, the airflow can be blown so as to block the space between the users seated facing each other without providing a physical partition. In other words, since the merging airflow flows like an air curtain between users who are seated facing each other across the desk, it is possible to reduce the difficulty of hearing conversation while reducing the risk of infection between users. . In particular, since the air flows blown out from the pair of air outlets collide with each other to generate a combined air flow, the openings of the pair of air outlets can be arranged at inconspicuous positions, and the natural feeling of blowing air in an open space. In this state, the difficulty of hearing conversations can be reduced while reducing the risk of infection between users.

Further, the blower system according to the present invention preferably includes an air cleaning section that cleans the combined airflow sucked from the suction port, and an exhaust port that discharges the combined airflow cleaned by the air cleaning section. As a result, when the user is a virus carrier, the virus scattered by the conversation is taken into the merged airflow, but the merged airflow containing the virus flows into the space below the desk and is sucked from the suction port. Then, the combined air flow sucked from the suction port is purified by the air purifier and discharged from the discharge port. Therefore, the spread of the virus to the surroundings is suppressed, and the risk of infection to other people in the room can be reduced.

Further, in the blower system according to the present invention, it is preferable that the pair of outlets blow out conditioned air temperature-controlled in the air conditioner as an air flow. As a result, the air-conditioned air flows from the upper surface of the desk to the space below, so that the user sitting on the seat can feel the air-conditioned air even at their feet. That is, in an open space, it is possible to provide a locally comfortable air-conditioned environment to the user.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the following embodiment is an example that embodies the present invention, and does not limit the technical scope of the present invention. In addition, each drawing described in the embodiment is a schematic drawing, and the ratio of the size and thickness of each component in each drawing does not necessarily reflect the actual dimensional ratio. .

(Embodiment 1)
First, a blower system 1 according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 3. FIG. FIG. 1 is a schematic configuration diagram of a blower system 1 according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional plan view showing the air blowing section 2 that constitutes the air blowing system 1. As shown in FIG. FIG. 3 is a cross-sectional plan view showing the base 3 that constitutes the blower system 1. As shown in FIG. Here, FIG. 2 is a horizontal cross-section of the chamber 5 at the position of the pair of air outlets 6, and shows the cross-section as viewed from directly above the blower section 2. As shown in FIG. FIG. 3 is a horizontal cross-section of the housing 4b at the position of the exhaust fan 12, and shows the cross-section as viewed from directly above the base 3. As shown in FIG.

The air blowing system 1 is a system that blows an air current so as to cut off the space between users when the users who hold a meeting or have a meeting sit face to face across a desk in an open space such as an office or a public facility. is.

The air blowing system 1 includes an air blowing section 2 and a base section 3 as shown in FIG. 1 . The air blower 2 is a unit that is installed on the ceiling surface C of the open space and generates a downflow airflow toward the base 3 positioned vertically downward. The base part 3 is arranged on the floor surface D of the open space, and is equipment for the users U to have a meeting. In addition, the base portion 3 has a function of sucking, purifying, and discharging the downflow airflow from the air blowing portion 2 .

First, the blower section 2 will be described.

As shown in FIG. 1, the blower section 2 includes a chamber 5, a duct 5a, and a pair of outlets 6. As shown in FIG.

The chamber 5 is a housing that constitutes the blower unit 2, and is fixed to the ceiling surface C of the open space by a support member. At this time, as shown in FIG. 2, the chamber 5 is positioned directly above the top plate 4a of the desk 4 constituting the base 3 described later, and the projection of the chamber 5 when the top plate 4a projects the chamber 5 onto the floor surface D It is arranged so as to fit roughly within the area. In addition, the chamber 5 is connected to the duct 5a, rectifies the conditioned air (cold air or warm air) introduced through the duct 5a, and controls each of the pair of air outlets 6 (first air outlet 6a, second air outlet 6a). Distribute to outlet 6b). Here, illumination (not shown) such as a downlight may be arranged on the lower surface of the chamber 5 (the surface facing the base 3 ) so as to illuminate the base 3 . As a result, it is possible to provide the user with a concentration environment or a relaxation environment.

The duct 5a is a member that communicates and connects the chamber 5 and an air conditioner (not shown). The duct 5 a conveys the conditioned air temperature-controlled by the air conditioner from the air conditioner located upstream to the chamber 5 . Here, the conditioned air is always supplied from the air conditioner, but if the conveying distance from the air conditioner to the chamber 5 is long, a duct fan (not shown) is installed in the middle of the duct 5a to assist the air conveying. may be inserted. Since a general air conditioner is used as the air conditioner, the explanation thereof will be omitted.

A pair of outlets 6 (first outlet 6a, second outlet 6b) are provided over the entire length of both ends of the chamber 5 as shown in FIG. are placed. A first air outlet 6a, which is one of the pair of air outlets 6, blows out a first air flow 7a toward the second air outlet 6b. Further, the second outlet 6b, which is the other of the pair of outlets 6, blows out the second air flow 7b toward the first outlet 6a. In addition, as shown in FIG. 1, the first air outlet 6a and the second air outlet 6b are shaped to blow air in a horizontal direction with respect to the ceiling surface C. good.

Then, as shown in FIG. 1, in the upper space S1 of the base 3, the first air flow 7a blown out from the first blowout port 6a and the second air flow 7b blown out from the second blowout port 6b are They flow mutually along the lower surface of the chamber 5, collide at an intermediate position between the first air outlet 6a and the second air outlet 6b, and flow together as a merged air flow 7c in the downward direction. That is, in the blower section 2, the pair of air outlets 6 (the first air outlet 6a and the second air outlet 6b) are arranged so that the air flows (the first air flow 7a and the second air flow 7b) blown out from each of them in directions approaching each other ) collide with each other to generate a merged air flow 7c in the direction from the upper space S1 toward the base 3 (the top plate 4a of the desk 4).

Next, the base 3 will be explained.

As shown in FIG. 1, the base 3 includes a desk 4 and a pair of seats 8 on which the user U can sit facing each other across the desk 4 in an open space.

The pair of seats 8 are chairs for two users U, a first chair 8a arranged on one side of the desk 4 (the left side in FIG. 1) and the other side of the desk 4 (the left side in FIG. ) and a second chair 8b arranged on the right side of the chair. The pair of seats 8 are positioned to face each other with the desk 4 interposed therebetween, as shown in FIG. A first user Ua sits on the first chair 8a, and a second user Ub sits on the second chair 8b. That is, the first user Ua and the second user Ub are seated at positions facing each other with the desk 4 interposed therebetween. Note that the pair of seats 8 is not limited to chairs for two users U, and may be chairs for four users, or may be long chairs on which two people can sit.

The desk 4 includes a top plate 4a and a housing 4b, as shown in FIG. The housing 4b includes a pair of suction ports 10, a purification filter 11, an exhaust fan 12, and an exhaust port 13 (see FIG. 3). In addition, in the desk 4, the space S2 below the desk 4 is wide enough to prevent the legs of the user U (user Ua, user Ub) seated on the seat 8 from coming into contact with the housing 4b. .

The top plate 4 a is a square flat plate and serves as a table for the desk 4 . The combined airflow 7c from the air blowing section 2 collides with the upper surface of the top plate 4a, and the collided combined airflow 7c is branched to the respective sides of the pair of seat portions 8. As shown in FIG. More specifically, the combined airflow 7c that collides with the top plate 4a is divided into a first combined airflow 7d that flows toward the first chair 8a (the user Ua side) and a second combined airflow 7d that flows toward the second chair 8b (the user Ub side). side) and the second combined air flow 7e flowing into the air flow. After hitting the user U, the first merged airflow 7d and the second merged airflow 7e change direction along the user's U body and flow toward the user's feet. That is, both the first combined airflow 7d and the second combined airflow 7e flow from the upper surface of the top plate 4a to the lower space S2 via the side surface of the top plate 4a. In addition, when it is not necessary to distinguish between the first merged airflow 7d and the second merged airflow 7e, they will be described as the merged airflow 7c.

A top plate 4a is provided on the top of the housing 4b, and constitutes a leg of the desk 4. As shown in FIG. A pair of suction ports 10 are formed in the side surface of the housing 4b on the side of the floor surface D (at the feet of the user U). A pair of exhaust ports 13 are formed on the side surface of the housing 4b on the side of the top plate 4a (another side surface on which the suction port 10 is not formed). Further, a purification filter 11 and a pair of exhaust fans 12 are installed in the internal space of the housing 4b.

The pair of suction ports 10 are openings for sucking into the housing 4b the air including the merged airflow 7c flowing into the lower space S2 of the desk 4. As shown in FIG. More specifically, the pair of suction ports 10 are the first suction port 10a located on the side surface of the housing 4b on the side of the floor surface D at the feet of the first user Ua and the feet of the second user Ub. and a second suction port 10b located on the side surface of the housing 4b on the side of the floor surface D.

The first suction port 10a sucks into the housing 4b the air including the first combined air flow 7d that has flowed from the upper surface of the top plate 4a into the lower space S2. On the other hand, the second suction port 10b sucks into the housing 4b the air including the second combined airflow 7e that has flowed from the upper surface of the top plate 4a into the lower space S2.

The purification filter 11 is an air filter that removes viruses, dirt, dust, etc. from the air introduced into the housing 4b and outputs purified air. For the purification filter 11, for example, a HEPA (High Efficiency Particulate Air) filter is used. Inside the housing 4b, the periphery of the purification filter 11 has a structure that can ensure high airtightness, and the first combined air flow 7d and the second combined air sucked from the first suction port 10a and the second suction port 10b, respectively. It is ensured that the stream 7e passes through the clarification filter 11 . In addition, the purification filter 11 corresponds to the "air purification section" in the claims.

The exhaust fan 12 is composed of a pair of exhaust fans, sucks the air (the first combined air flow 7d, the second combined air flow 7e) that has been purified by passing through the purification filter 11, and opens the pair of exhaust ports 13 ( They are respectively discharged to the outside of the base portion 3 from the first exhaust port 13a and the second exhaust port 13b). As the exhaust fan 12, a centrifugal fan (sirocco fan, turbo fan, etc.), which is a fan with high static pressure characteristics, is used. More specifically, as shown in FIG. 3, the first exhaust fan 12a arranged corresponding to the first suction port 10a mainly sucks the first combined airflow 7d that has been purified by passing through the purification filter 11. , to the outside of the base 3 through the first exhaust port 13a. On the other hand, the second exhaust fan 12b arranged corresponding to the second suction port 10b mainly sucks the second combined air flow 7e that has been purified by passing through the purification filter 11, and the second exhaust fan 12b from the second exhaust port 13b to the base 3. Discharge each to the outside.

The pair of exhaust ports 13 are openings for discharging the air purified inside the housing 4b to the outside. More specifically, the pair of air outlets 13 are positioned on the side surface of the desk 4 (another side surface on which the air inlet 10 is not formed), and are composed of a first air outlet 13a that mainly discharges the first merged airflow 7d. , and a second exhaust port 13b located on the side opposite to the side on which the first exhaust port 13a is located and mainly discharging the second combined air flow 7e.

As described above, the blower system 1 is configured by each member.

Next, the air flow formed in the blower system 1 will be described.

In the blower system 1, as described above, conditioned air temperature-controlled by an air conditioner is introduced into the chamber 5 of the blower unit 2 through the duct 5a. The chamber 5 evenly distributes the introduced conditioned air and blows it out from the pair of outlets 6 as air streams facing each other. Then, the first airflow 7a blown out from the first blowout port 6a and the second airflow 7b blown out from the second blowout port 6b mutually flow along the lower surface of the chamber 5, They collide at an intermediate position between the air outlet 6a and the second air outlet 6b, forming a combined air flow 7c and flowing from the upper space S1 toward the base 3 (the top plate 4a of the desk 4). At this time, the merged airflow 7c cuts off the space between the users U who sit facing each other across the desk 4 like an air curtain. After that, the merged airflow 7c collides with the upper surface of the top plate 4a of the desk 4 and branches to the respective sides of the pair of seats 8. , and flows around to the lower space S2. The combined air flow 7c that has flowed into the lower space S2 from the upper surface of the top plate 4a is sucked into the housing 4b through the pair of suction ports 10, purified in the housing 4b, and then exhausted through the pair of exhaust ports. 13 is discharged outside.

As described above, according to the blower system 1 according to the first embodiment, the following effects can be obtained.

(1) The blower system 1 has a pair of seats 8 on which the user U can sit facing each other across the desk 4 in an open space, and a space S1 above the pair of seats 8. A pair of air outlets 6 for blowing out (first air flow 7a, second air flow 7b), and a suction port 10 for sucking the air flow blown out from the pair of air outlets 6 in the lower space S2 of the desk 4. . The pair of air outlets 6 collide the air flows blown toward each other to generate a merged air flow 7c in a direction from the upper space S1 toward the desk 4, and the merged air flow 7c 4 to go around to the lower space S2 and be sucked into the suction port.

By doing so, it is possible to blow the airflow so as to block the space between the users U sitting face to face without providing a physical partition. In other words, since the combined airflow 7c flows like an air curtain between the users U who are seated facing each other with the desk 4 in between, the risk of infection between the users U is reduced and the difficulty of hearing the conversation is reduced. can do. In particular, since the air flows blown out from the pair of air outlets 6 collide with each other to generate the combined air flow 7c, the openings of the pair of air outlets 6 can be arranged at inconspicuous positions, and the air can be blown in an open space. In this state, it is possible to reduce the difficulty of listening to conversation while reducing the risk of infection between users U while enhancing the sense of nature.

(2) If the user U is a virus carrier, there is concern that other people in the room may feel uneasy about the risk of infection if the virus-containing aerosol spreads in the room. Therefore, the blower system 1 is provided with a purification filter 11 for purifying the combined airflow 7c sucked from the suction port 10 and an exhaust port 13 for discharging the combined airflow 7c purified by the purification filter 11. - 特許庁As a result, if the user U is a virus carrier, the virus scattered by the conversation is taken into the merged airflow 7c, but most of the virus-laden merged airflow 7c is transferred to the space S2 below the desk 4. It is guided and sucked from the inflow suction port 10. - 特許庁Then, the merged airflow 7 c sucked from the suction port 10 is purified by the purification filter 11 and discharged from the exhaust port 13 . Therefore, the spread of the virus to the surroundings is suppressed, and the risk of infection to other people in the room can be reduced.

(3) In the blower system 1, the pair of air outlets 6 blow out conditioned air temperature-controlled in the air conditioner as an air flow. As a result, the air-conditioned air flows from the upper surface of the desk 4 to the lower space S2, so that the user U sitting on the seat 8 can feel the air-conditioned air up to the feet. That is, it is possible to provide the user U with a locally comfortable air-conditioned environment in an open space.

(4) In the air blowing system 1, the air blowing unit 2 is installed suspended from the ceiling surface C in the space above the base 3 (desk 4, seat 8). As a result, the sense of unity in the entire space of the facing seats can be enhanced.

The present invention has been described above based on the embodiments. Those skilled in the art will understand that these embodiments are merely examples, and that various modifications can be made to combinations of each component or each treatment process, and such modifications are also within the scope of the present invention. By the way.

In the blower system 1 according to the present embodiment, the air volume ratio of the airflows blown out from the pair of outlets 6 is set constant (for example, 1:1), but the present invention is not limited to this. For example, the air volume ratio of the airflows blown out from the pair of outlets 6 may be adjusted. By doing so, even if the combined airflow 7c is biased toward one side of the seat portion 8 due to the influence of disturbance (for example, airflow) in the open space, the air volume ratio of the airflow By adjusting , it is possible to ensure that the combined airflow 7c flows to the central region between the pair of seat portions 8 .

Further, in the blower system 1 according to the present embodiment, the control of the air volume of the pair of exhaust fans 12 (the amount of air sucked from the pair of suction ports 10) and the pair of blowout ports of the blower unit 2 performed by the air conditioner The control of the temperature and air volume of the air blown out from 6 may be interlocked. By doing so, the air volume of the entire air blowing system 1 is larger than the air volume blown out from the pair of air outlets 6 (first air outlet 6a, second air outlet 6b). The amount of air sucked from the second suction port 10b) can be made larger. As a result, the proportion of the combined airflow 7c blown out from the pair of outlets 6 that is sucked into the pair of suction ports 10 increases, so that the collection rate of aerosol riding on the flow of the combined airflow 7c is increased. can be done.

Further, in the blower system 1 according to the present embodiment, the exhaust fan 12 may be operated all the time, but may be activated by a switch (not shown) or a human sensor (not shown). . As a result, the power consumption of the air blowing system 1 can be reduced.

The air blowing system according to the present invention blows air so as to block the space between users seated facing each other without providing a physical partition, and enhances the natural feeling of air blowing in an open space. It is useful because it can reduce the difficulty of listening to conversations while reducing the risk of infection between users.

REFERENCE SIGNS LIST 1 blower system 2 blower 3 base 4 desk 4a top plate 4b housing 5 chamber 5a duct 6 outlet 6a first outlet 6b second outlet 7a first airflow 7b second airflow 7c combined airflow 7d first Combined airflow 7e Second combined airflow 8 Seat 8a First chair 8b Second chair 10 Suction port 10a First suction port 10b Second suction port 11 Cleaning filter 12 Exhaust fan 12a First exhaust fan 12b Second exhaust fan 13 Exhaust port 13a First exhaust port 13b Second exhaust port

Claims (3)

a pair of seats on which a user can sit facing each other across a desk in an open space;
a pair of air outlets for blowing out an airflow in the space above the pair of seats;
a suction port for sucking the airflow blown out from the pair of blowout ports in the space below the desk;
with
The pair of air outlets causes the air flows blown out in directions approaching each other to collide with each other to generate a merged air flow in a direction from the upper space toward the desk,
The air blowing system according to claim 1, wherein the combined airflow flows from the upper surface of the desk into the lower space and is sucked into the suction port. an air purification unit that purifies the combined air flow sucked from the suction port;
an outlet for discharging the merged airflow purified by the air purification unit;
2. The ventilation system of claim 1, further comprising: a. 3. The air blowing system according to claim 1, wherein said pair of air outlets blow out conditioned air temperature-controlled in an air conditioner as said air flow.

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