Blower system

Abstract

To create a space where there are few fine particles, in an environment with a lot of fine particles such as pollen.SOLUTION: A blower system 1 includes: a blower unit 10 having an intake port 12 and a blowout port 11, and for blowing out air sucked from the intake port 12 upward from the blowout port 11; a reflection part 20 arranged above the blower unit 10, and for reflecting an airflow blown out upward from the blowout port 11 and splitting it into the airflow going downward at least from two directions; and a control part 14 for controlling an amount of the airflow which the blower unit 10 blows out. When a space surrounded by the airflow split by the reflection part 20 is defined as an internal space B1 and a space which is further on the outside than the airflow split by the reflection part 20 is defined as an outer space B2, by a fine particle measuring device 30, an amount of fine particles in the internal space B1 or the outer space B2 is measured, and the control part 14 changes the amount of the airflow which the blower unit 10 blows out, based on the amount of fine particles measured by the fine particle measuring device 30.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a ventilation system.

Background Art

[0002] Conventionally, an air conditioner capable of efficiently drying laundry hung indoors has been known.

[0003] For example, in Patent Document 1, an air conditioner has a laundry drying operation mode. The air conditioner receives the weight of the laundry or operation control information via a communication unit, and controls the operation time and the like based on the weight of the laundry or the operation control information. Therefore, it is disclosed that the laundry hung indoors can be efficiently dried.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In such a conventional air conditioner, in order to prevent pollen, yellow sand, etc. from adhering to the laundry, the laundry is dried indoors. For this reason, it cannot be sufficiently exposed to sunlight and it is difficult to obtain a sterilizing effect.

[0006] And, when the laundry etc. are placed outdoors in order to be exposed to sunlight, there has been a problem that the laundry etc. are soiled by fine particles such as pollen.

[0007] Therefore, the present disclosure is conceived from the above conventional problems, and an object thereof is to provide a ventilation system capable of creating a space with few fine particles outdoors or indoors.

Means for Solving the Problems

[0008] And, to achieve this object, a ventilation system according to an aspect of the present disclosure includes an air inlet and an air outlet, a blower unit that sucks air from the air inlet and blows it upward from the air outlet, a reflection unit that is disposed above the blower unit and reflects the airflow blown upward from the air outlet to divide it into airflow directed downward from at least two directions, and a control unit that controls the amount of airflow blown by the blower unit. The ventilation system is configured such that a space surrounded by the airflow divided by the reflection unit is defined as an internal space, and a space outside the airflow divided by the reflection unit is defined as an external space. Then, the amount of fine particles in the internal space or the external space is measured by a fine particle measuring device, and the control unit changes the amount of airflow blown by the blower unit based on the amount of fine particles measured by the fine particle measuring device, thereby achieving the intended object.

Advantages of the Invention

[0009] According to the present disclosure, a space with fewer fine particles can be created.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Modes for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

[0012] (Embodiment 1) <Configuration> FIG. 1 is a perspective view showing the configuration of the air blowing system 1 of the present embodiment.

[0013] As shown in FIG. 1, the air blowing system 1 includes an air blowing unit 10, a reflecting portion 20, a particulate matter measuring device 30, and an air velocity measuring device 40.

[0014] The air blowing system 1 is configured to form an air flow that partitions an internal space B1 and an external space B2.

[0015] As an example, the internal space B1 and the external space B2 are assumed to be an outdoor space. Note that the drying pole 50, the laundry 60, and the floor surface 100 are not included in the air blowing system 1.

[0016] The air blowing unit 10 is installed on the floor surface 100.

[0017] The air blowing unit 10 includes an air outlet 11 and an air inlet 12.

[0018] FIG. 2 is a block diagram showing the configuration of the air blowing unit of the present embodiment.

[0019] As shown in FIG. 2, the air blowing unit 10 includes an air blowing device 13, a control unit 14, and a communication unit 15.

[0020] The air outlet 11 is provided at the upper part of the air blowing unit 10. An air flow is blown out from the air outlet 11 toward the reflecting portion 20 installed above the air blowing unit 10, and an introduced air flow A1 is formed.

[0021] The air inlet 12 is provided at the lower part or the side part of the air blowing unit 10. The air inlet 12 is an opening for sucking in a sucked air flow A3. The opening surface of the air inlet 12 is provided, for example, in a direction perpendicular to the floor surface 100.

[0022] The air inlet 12 is preferably composed of a plurality of circular holes such as punching metal, etc. This is because, outdoors, large objects such as leaves are not sucked into the air blowing unit 10 from the air inlet 12.

[0023] The blower device 13 generates an airflow flowing vertically upward under the control of the control unit 14. This airflow is configured to be sent to the air outlet 11.

[0024] In this way, the blower device 13 sucks in the intake airflow A3 from the air inlet 12 and generates the introduced airflow A1.

[0025] The blower device 13 is, for example, a sirocco fan that generates an airflow containing more linear components than swirling components. The blower device 13 is not limited to a sirocco fan and may be a propeller fan.

[0026] The control unit 14 has a function of controlling the blower device 13. Based on the information obtained from the communication unit 15, the control unit 14 executes a predetermined program to control the operation of the blower device 13.

[0027] The control unit 14 has, for example, a computer system having a processor and a memory. Then, by the processor executing the program stored in the memory, the computer system functions as the control unit 14.

[0028] The program executed by the processor is recorded in advance in the memory of the computer system here, but it may be recorded and provided on a recording medium such as a memory card, or may be provided through a telecommunication circuit such as the Internet.

[0029] The communication unit 15 receives the measurement data of the particulate matter measuring device 30 and / or the wind speed measuring device 40 and transmits the information to the control unit 14. The measurement data of the particulate matter measuring device 30 and / or the wind speed measuring device 40 may be received through an electric communication circuit such as the Internet or through a wired communication circuit.

[0030] The reflecting part 20 is installed above the blower unit 10. The introduced airflow A1 blown out from the air outlet 11 is configured to hit the reflecting part 20.

[0031] The introduced air current A1 hitting the reflecting part 20 is divided into air currents flowing downward from at least two directions along the reflecting part 20. This divided air current becomes the descending air current A2.

[0032] The descending air current A2 divides the space where the air blowing system 1 is installed. In other words, the descending air current A2 divides into an internal space B1 within the descending air current A2 and an external space B2 outside the descending air current A2.

[0033] The internal space B1 is the space surrounded by the descending air current A2.

[0034] The external space B2 is the space other than the space surrounded by the descending air current A2.

[0035] In the internal space B1, for example, a drying pole 50 and / or laundry 60 are installed.

[0036] The particulate matter measuring device 30 measures the amount of particulate matter floating in the internal space B1 or the external space B2.

[0037] Particulate matter refers to particles with a particle diameter of 1 mm or less. The particle diameter of the particulate matter may be 20 - 40 μm, which occupies a large proportion of pollen that is likely to cause allergic reactions, or even less. The particle diameter of the particulate matter may also be 10 - 100 μm.

[0038] The particulate matter measurement data measured by the particulate matter measuring device 30 is transmitted to the control unit 14.

[0039] Based on the received particulate matter measurement data, the control unit 14 makes a judgment to select a branch path of the program.

[0040] In FIG. 1, the particulate matter measuring device 30 is installed on the drying pole 50 within the internal space B1, but it may also be installed on the air blowing unit 10 or the like within the internal space B1, or installed within the external space B2.

[0041] Regarding the measured value of the amount of fine particles, either one measurement data or the average value obtained by averaging a plurality of measurement data may be used.

[0042] The fine particle measuring device 30 is any device that measures fine particles. As an example, the fine particle measuring device 30 is a pollen sensor that optically detects the amount of pollen.

[0043] The wind speed measuring device 40 measures the wind speed of the natural wind flowing in the external space B2. The wind speed data measured by the wind speed measuring device 40 is transmitted to the control unit 14.

[0044] Based on the received wind speed data, the control unit 14 makes a determination to select a branch path of the program.

[0045] The wind speed measuring device 40 is installed, for example, on the outer surface of the reflecting unit 20. The wind speed measuring device 40 may be installed anywhere as long as it can measure the wind speed of the external space B2.

[0046] Regarding the measured value of the wind speed, either one measurement data or the average value obtained by averaging a plurality of measurement data may be used.

[0047] The wind speed measuring device 40 is any device that measures the wind speed. The wind speed measuring device 40 is, for example, a vane anemometer. The wind speed measuring device 40 may also be a cup anemometer, a thermal anemometer, or the like. <Control> FIG. 3 is a flowchart of the air blowing system 1 of the present embodiment.

[0048] As shown in FIG. 3, this flowchart starts from when the power switch of the air blowing system 1 is turned on. Hereinafter, this flowchart will be described in order.

[0049] The control unit 14 controls the air flow amount blown out by the air blowing unit 10 to be the first air volume or 0 m 3 / h. Here, the first air volume is, for example, 100 m 3 / h (step S101).​

[0050] The particulate matter detector 30 measures the amount of particulate matter present in the internal space B1 or the external space B2. If the amount of particulate matter detected by the particulate matter detector 30 is less than the particulate matter amount X1, the process returns to step S101. If the amount of particulate matter detected by the particulate matter detector 30 is equal to or greater than the particulate matter amount X1, the process proceeds to step S103. Here, the particulate matter amount being the particulate matter amount X1 is, for example, 4 particles / m 3 (step S102).

[0051] If the amount of particulate matter detected by the particulate matter detector 30 is equal to or greater than the particulate matter amount X2, the process proceeds to step S104. If the amount of particulate matter detected by the particulate matter detector 30 is less than the particulate matter amount X2, the process proceeds to step S105. The particulate matter amount X2 is set to be greater than the particulate matter amount X1. Here, the particulate matter amount being the particulate matter amount X2 is, for example, 40 particles / m 3 (step S103).

[0052] If the amount of particulate matter detected by the particulate matter detector 30 is equal to or greater than X2, the control unit 14 controls the amount of air flow blown out by the blower unit 10 to be the fourth air volume. The fourth air volume is set to be greater than the third air volume. After a predetermined time has elapsed, the process proceeds to step S102. Here, the fourth air volume is, for example, 400 m 3 / h. The predetermined time is, for example, 1 minute (step S104).

[0053] The wind speed detector 40 measures the wind speed in the external space B2. If the wind speed measured by the wind speed detector 40 is equal to or greater than the wind speed V1, the process proceeds to step S106. If the wind speed measured by the wind speed detector 40 is less than the wind speed V1, the process proceeds to step S107. Here, the wind speed V1 is, for example, 2.0 m / s (step S105).

[0054] The control unit 14 controls the amount of air flow blown out by the blower unit 10 to be the third air volume. The third air volume is set to be greater than the second air volume and less than the fourth air volume. After a predetermined time has elapsed, the process proceeds to step S102. Here, the third air volume is, for example, 300 m3 It is / h. The predetermined time is, for example, 1 minute (step S106).

[0055] The control unit 14 controls the air volume blown out by the blower unit 10 to be the second air volume. The second air volume is larger than the first air volume and smaller than the third air volume. After the elapse of the predetermined time, the process proceeds to step S102. Here, the second air volume is, for example, 200 m 3 It is / h. The predetermined time is, for example, 1 minute (step S107).

[0056] When the particulate matter measuring device 30 measures the amount of particulate matter in the internal space B1, if the measurement result of the particulate matter measuring device 30 is less than the particulate matter amount X1, it can be said that the air volume condition in step S101 is sufficient. Therefore, there is no need to consider the wind speed in the external space B2, and regardless of the measurement result of the wind speed measuring device 40, the air volume of the blower unit 10 becomes the first air volume or 0 (S102).

[0057] When the particulate matter measuring device 30 measures the amount of particulate matter in the external space B2, if the measurement result of the particulate matter measuring device 30 is less than the particulate matter amount X1, in order to indicate that there are very few particulate matters at the installation location of the air supply system 1, the air flow is sufficient at the minimum air volume. Therefore, there is no need to consider the wind speed in the external space B2, and regardless of the measurement result of the wind speed measuring device 40, the air volume of the blower unit 10 becomes the first air volume or 0 (S102).

[0058] When the particulate matter measuring device 30 measures the amount of particulate matter in the internal space B1, if the measurement result of the particulate matter measuring device 30 is equal to or more than the particulate matter amount X2, it can be said that there are a very large number of particulate matters in the internal space B1 and the air volume of the air flow is insufficient. Therefore, regardless of the measurement result of the wind speed measuring device 40, the air volume of the blower unit 10 is set to the fourth air volume (S104).

[0059] When the particulate matter detector 30 measures the amount of particulate matter in the external space B2, if the measurement result of the particulate matter detector 30 is equal to or greater than the amount of particulate matter X2, it indicates that there is a very large amount of particulate matter even at the installation location of the air supply system 1. The control unit 14 estimates and controls the amount of particulate matter in the internal space B1 based on the amount of particulate matter in the external space B2. Therefore, when the risk of an increase in particulate matter in the internal space B1 is high, it is necessary to increase the air volume of the air flow blown out from the air supply unit 10 regardless of the wind speed in the external space B2. For this reason, the air volume of the air supply unit 10 is set to the fourth air volume regardless of the measurement result of the wind speed detector 40 (S104).

[0060] As described above, according to the present disclosure, the amount of particulate matter and / or the wind speed in the internal space B1 and / or the external space B2 are measured. As a result, it is possible to suppress the intrusion of particulate matter into the internal space B1 while suppressing energy loss by an appropriate air volume of air flow. As a result, it is possible to create a space with less particulate matter outdoors or indoors.

[0061] (Embodiment 2) In this embodiment, the same components as those in other embodiments are denoted by the same reference numerals, and detailed descriptions thereof are omitted. <Configuration> FIG. 4 is a block diagram showing the configuration of the air supply unit of this embodiment. As shown in FIG. 4, the air supply unit 10 includes an air blower 13, a control unit 14, a communication unit 15, and a filter unit 16.

[0062] The filter unit 16 collects particulate matter such as pollen in the air sucked in from the intake port 12 and has a dust collection filter or the like.

[0063] The air purified by the filter unit 16 is blown upward from the air outlet 11 as the introduced air flow A1 by the air blower 13. As a result, purified air is provided into the internal space B1. <Control> FIG. 5 is a flowchart of the air supply system 1 of this embodiment. The flowchart of FIG. 5 starts from when the power switch of the air supply system 1 is turned on.

[0064] The control flow of this embodiment is classified into two types as an example, namely, a "start-up mode" and a "normal mode".

[0065] The "start-up mode" is a mode represented by the flow from step S201 to S202 in FIG. 5.

[0066] The "normal mode" is a mode represented by the flow starting from S102 in FIG. 3.

[0067] First, the start-up mode will be described. The control unit 14 controls the air volume blown out by the blower unit 10 to be the fifth air volume. The fifth air volume is set to be larger than the first air volume. The fifth air volume can be the same as the fourth air volume or larger than the fourth air volume. Here, for example, the fifth air volume is 500 m 3 / h (step S201).

[0068] The control unit 14 measures the time (elapsed time) during which the air flow blown out by the blower unit 10 reaches the fifth air volume. If the elapsed time is less than T1, the process returns to step S201. If the elapsed time is T1 or more, the process moves to step S102. Here, for example, the elapsed time T1 is 5 minutes. The elapsed time T1 is set in advance, but it may be changed to a time preferred by the user (step S202).

[0069] Subsequently, the normal mode will be described. The normal mode starts from S102 in FIG. 3 and loops through S101, S103, S104, S105, S106, S107. Thus, the normal mode has the same flow as the control method of Embodiment 1.

[0070] According to the present disclosure, in the startup mode, by collecting the fine particles floating in the internal space B1 in the filter unit 16, the fine particles floating in the internal space B1 can be reduced. Further, in the normal mode, the amount of fine particles and / or the wind speed in the internal space B1 and / or the external space B2 are measured. Thereby, it is possible to suppress the entry of fine particles into the internal space B1 while suppressing energy loss by an appropriate air volume airflow.

[0071] Thus, according to the present disclosure, by combining the startup mode and the normal mode, it is possible to maintain a state in which there are few fine particles floating in the internal space B1. As a result, it is possible to create a space with even fewer fine particles outdoors or indoors.

[0072] (Modification example) Hereinafter, a modification example will be described. In the modification example, the same reference numerals are given to the same components as in each embodiment, and detailed descriptions thereof are omitted.

[0073] In each embodiment, the amount of fine particles floating is measured by the fine particle measuring device 30, but it is not limited thereto. Instead of measuring the amount of fine particles by the fine particle measuring device 30, fine particle measurement data on the Internet (such as real-time pollen measurement data) may be used. This fine particle measurement data is data including the amount of fine particles acquired from a fine particle measuring device in another location.

[0074] In this case, the communication unit 15 may receive the fine particle measurement data around the blower unit 10, and the control unit 14 may utilize this fine particle measurement data for determining the control method.

[0075] In the second embodiment, in the startup mode, for a predetermined time after the blower unit 10 is started, the control unit 14 controls so that the amount of the airflow blown out by the blower unit 10 becomes the fifth air volume. Regarding this, regardless of the amount of fine particles measured by the fine particle measuring device 30, it is forced to be the fifth air volume, but it is not limited thereto.

[0076] The control unit 14 may be configured to select whether to set the air volume of the blower unit 10 to the fifth air volume according to the amount of fine particles measured by the fine particle measuring device 30.

[0077] For example, when the detected amount of fine particles is equal to or greater than the fine particle amount X1, the control unit 14 may set the air volume of the air flow blown out from the blower unit 10 to the fifth air volume, and when the detected amount of fine particles is less than the fine particle amount X1, it may proceed to the next flow without setting the air volume to the fifth air volume.

[0078] Also, in each embodiment, the wind speed measuring device 40 is not essential. If there is no wind speed measuring device 40, it may not be possible to detect the wind speed, but it is still possible to use the air blowing system 1 according to the present disclosure. In other words, when there is no wind speed measuring device 40, the air blowing system 1 can be used by skipping step S105 in FIG. 3 in the flow.

[0079] In addition to step S105, steps such as step S103 can also be skipped.

[0080] Also, in each embodiment, the air blowing system 1 has been described by taking the space for drying laundry as an example. This is configured to suppress pollen and the like from entering the internal space B1 by the downward airflow A2 when drying laundry outdoors. This can also be called a pollen-free drying system that can reduce the amount of fine particles that are difficult to adhere to the laundry and are brought indoors even when drying the laundry in the sun, and can dry the laundry in a space with less pollen while being sufficiently exposed to sunlight outdoors.

[0081] However, the present disclosure is not limited to this. For example, even when a person stays in a space unrelated to the space for drying laundry, it is possible to realize an internal space B1 with few fine particles, so a comfortable space can be created not only outdoors but also indoors.

[0082] (Supplementary Note) The following is supplementary regarding each embodiment.

[0083] The air blowing system 1 according to one aspect of the present disclosure has an air inlet 12 and an air outlet 11, and includes an air blowing unit 10 that sucks in air from the air inlet 12 and blows it upward from the air outlet 11; a reflecting unit 20 that is disposed above the air blowing unit 10 and reflects the air flow blown upward from the air outlet 11 and divides it into air flows directed downward from at least two directions; and a control unit 14 that controls the amount of the air flow blown by the air blowing unit 10. When the space surrounded by the air flow divided by the reflecting unit 20 is defined as an internal space B1 and the space outside the air flow divided by the reflecting unit 20 is defined as an external space B2, the amount of fine particles in the internal space B1 or the external space B2 is measured by a fine particle measuring device 30, and the control unit 14 is configured to change the amount of the air flow blown by the air blowing unit 10 based on the amount of fine particles measured by the fine particle measuring device 30.

[0084] According to this configuration, the air volume of the air flow wall formed by the air flow reflected by the reflecting unit 20 can be changed according to the amount of fine particles. Therefore, it is possible to suppress energy loss and create an air flow wall with an appropriate air volume. As a result, it is possible to suppress the intrusion of fine particles into the internal space B1.

[0085] Further, when the second air volume is set to be larger than the first air volume, the control unit 14 controls the amount of the air flow blown by the air blowing unit 10 to be the first air volume or 0 when the amount of fine particles measured by the fine particle measuring device 30 is less than the first fine particle amount, and the control unit 14 controls the amount of the air flow blown by the air blowing unit 10 to be the second air volume when the amount of fine particles measured by the fine particle measuring device 30 is equal to or more than the first fine particle amount.

[0086] According to this configuration, the air volume of the air flow wall can be increased when the amount of fine particles increases. Therefore, it is possible to further suppress the intrusion of fine particles into the internal space B1.

[0087] Further, it is provided with a wind speed measuring device 40 for measuring the wind speed in the external space B2. When the third air volume is set to be larger than the second air volume, the control unit 14 controls such that when "the amount of fine particles measured by the fine particle measuring device 30 is equal to or more than the first fine particle amount" and "the wind speed measured by the wind speed measuring device 40 is less than the predetermined wind speed", the amount of the airflow blown out by the blower unit 10 becomes the second air volume. The control unit 14 may be configured to control such that when "the amount of fine particles measured by the fine particle measuring device 30 is equal to or more than the first fine particle amount" and "the wind speed measured by the wind speed measuring device 40 is equal to or more than the predetermined wind speed", the amount of the airflow blown out by the blower unit 10 becomes the third air volume.

[0088] According to this configuration, when the outside wind, which is the wind in the external space B2, is strong, the air volume of the airflow wall can be increased. Therefore, even when the outside wind becomes strong, the airflow wall is less likely to collapse. As a result, the intrusion of fine particles into the internal space B1 can be further suppressed.

[0089] Further, when the amount of fine particles measured by the fine particle measuring device 30 is less than the first fine particle amount, the control unit 14 may be configured to control such that the amount of the airflow blown out by the blower unit 10 becomes the first air volume or 0 regardless of the measured value of the wind speed measuring device 40.

[0090] According to this configuration, when the amount of fine particles is small, the air volume of the airflow wall can be decreased. Therefore, the energy loss of the blower system 1 can be reduced.

[0091] Further, when the second fine particle amount is set to be larger than the first fine particle amount and the fourth air volume is set to be larger than the third air volume, the control unit 14 may be configured to control such that when the amount of fine particles measured by the fine particle measuring device 30 is equal to or more than the second fine particle amount, the amount of the airflow blown out by the blower unit 10 becomes the fourth air volume regardless of the measured value of the wind speed measuring device 40.

[0092] According to this configuration, when the amount of fine particles is large, the air volume of the airflow wall can be increased regardless of the strength of the external wind. Therefore, the intrusion of fine particles into the internal space B1 can be further suppressed.

[0093] In addition, the blower unit 10 has a filter unit 16 for collecting fine particles. The air sucked in from the intake port 12 is blown out from the blowout port 11 after passing through the filter unit 16. When the fifth air volume is set to be larger than the first air volume, the control unit 14 may be configured to control the amount of airflow blown out by the blower unit 10 to be the fifth air volume for a predetermined time after the blower unit 10 is activated.

[0094] According to this configuration, it is possible to remove fine particles in the internal space B1 when the blower system 1 is started. Therefore, the amount of fine particles in the internal space B1 can be reduced.

[0095] Alternatively, the fifth air volume may be configured to be the maximum air volume that the blower unit 10 can blow out.

[0096] According to this configuration, more fine particles in the internal space B1 can be removed when the blower system 1 is started, so that the amount of fine particles in the internal space B1 can be further reduced.

[0097] As described above, the blower system according to the present disclosure has been described based on the embodiments. However, the present disclosure is not limited to the embodiments. As long as the gist of the present disclosure is not deviated from, various modifications conceived by those skilled in the art applied to each embodiment and forms constructed by combining components in different embodiments are also included in the scope of the present disclosure.

Industrial Applicability

[0098] The blower system according to the present disclosure is useful as a blower system used for, for example, air drying.

Explanation of Reference Numerals

[0099] 1 Blower system 10 Blower Unit 11 Air Outlet 12 Air Inlet 13 Blower 14 Control Unit 15 Communication Unit 16 Filter Unit 20 Reflective Unit 30 Particle Measurer 40 Wind Speed Measurer 50 Drying Pole 60 Laundry 100 Floor Surface A1 Inlet Airflow A2 Downward Airflow A3 Suction Airflow B1 Internal Space B2 External Space

Claims

1. A blower system comprising: a blower unit having an air inlet and an air outlet, and blowing out the air sucked from the air inlet upward from the air outlet; a reflection unit disposed above the blower unit, reflecting the air flow blown upward from the air outlet and dividing it into air flows directed downward from at least two directions; a control unit for controlling the amount of the air flow blown out by the blower unit, wherein a space surrounded by the air flows divided by the reflection unit is defined as an internal space, a space outside the air flows divided by the reflection unit is defined as an external space, the amount of fine particles in the internal space or the external space is measured by a fine particle measuring device, the control unit changes the amount of the air flow blown out by the blower unit based on the amount of fine particles measured by the fine particle measuring device.

2. When the second air volume is larger than the first air volume, the control unit controls such that when the amount of fine particles measured by the fine particle measuring device is less than the first fine particle amount, the amount of the air flow blown out by the blower unit becomes the first air volume or 0, the control unit controls such that when the amount of fine particles measured by the fine particle measuring device is equal to or more than the first fine particle amount, the amount of the air flow blown out by the blower unit becomes the second air volume. The blower system according to claim 1.

3. comprising an air velocity measuring device for measuring the wind speed in the external space, when the third air volume is larger than the second air volume, the control unit controls such that when "the amount of fine particles measured by the fine particle measuring device is equal to or more than the first fine particle amount" and "the wind speed measured by the air velocity measuring device is less than the predetermined wind speed", the amount of the air flow blown out by the blower unit becomes the second air volume, the control unit controls such that when "the amount of fine particles measured by the fine particle measuring device is equal to or more than the first fine particle amount" and "the wind speed measured by the air velocity measuring device is equal to or more than the predetermined wind speed", the amount of the air flow blown out by the blower unit becomes the third air volume. The blower system according to claim 2.

4. the control unit controls such that when the amount of fine particles measured by the fine particle measuring device is less than the first fine particle amount, regardless of the measured value of the air velocity measuring device, the amount of the air flow blown out by the blower unit becomes the first air volume or 0. The blower system according to claim 3.

5. When the amount of the second fine particles is set to be larger than the amount of the first fine particles, and the fourth air volume is set to be larger than the third air volume, when the amount of the fine particles measured by the fine particle measuring device is equal to or larger than the amount of the second fine particles, the control unit controls the amount of the air flow blown out by the air blowing unit to be the fourth air volume regardless of the measured value of the air velocity measuring device. The air blowing system according to claim 3, characterized in that.

6. The air blowing unit has a filter for collecting fine particles, the air sucked from the intake port is blown out from the blowout port after passing through the filter, when the fifth air volume is set to be larger than the first air volume, the control unit controls the amount of the air flow blown out by the air blowing unit to be the fifth air volume during a predetermined time after the air blowing unit is activated. The air blowing system according to any one of claims 2 to 5, characterized in that.

7. The air blowing system according to claim 6, characterized in that the fifth air volume is the maximum air volume that the air blowing unit can blow out. ​

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