Dust removal system

Abstract

To provide a dust removal system capable of improving a removal ratio of powder dust.SOLUTION: A dust removal system comprises a plurality of blowing units 10 which can be disposed in a manner to align along a passing path W of a person P and can blow air toward the passing path W.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the technology of a dust removal system for removing dust adhering to a person.

Background Art

[0002] Conventionally, the technology of a dust removal system for removing dust adhering to a person has been known. For example, it is as described in Patent Document 1.

[0003] Patent Document 1 describes a dust removal system (pollen separation device) installed at the entrance and exit of a building. In the dust removal system described in Patent Document 1, a person entering or leaving the building is detected, and by blowing wind toward the detected person, dust (such as pollen and dust) adhering to the person can be removed.

[0004] Regarding such a dust removal system technology, it is desired to further increase the dust removal rate.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention has been made in view of the above - described circumstances, and the problem to be solved is to provide a dust removal system capable of increasing the dust removal rate.

Means for Solving the Problems

[0007] The problem to be solved by the present invention is as described above. Next, the means for solving this problem will be described.

[0008] That is, in claim 1, Includes curved sections and straight sections in a plan view.It comprises a plurality of blowing units that can be arranged in a line along the target passage path and capable of blowing air toward the passage path, The multiple blowing units are arranged along the passage path at predetermined intervals from each other, thereby enabling intermittent airflow to be blown onto the object traveling along the passage path. The multiple blowing units are arranged on both sides of the passage path, and the air outlets of the multiple blowing units arranged on both sides of the passage path are arranged opposite each other in pairs across the passage path, and the predetermined interval along the passage path is arranged to be the same as the straight section on the inside of the bent section. It is.

[0009] In claim 2, The multiple blower units are formed separately from each other. It is.

[0010] In claim 3, It further comprises an ion generating unit that generates statically neutralizing ions. It is.

[0011] In claim 4, The system further comprises a blower that supplies air to at least two of the aforementioned blowing units simultaneously. It is. [Effects of the Invention]

[0015] One of the effects of this invention is that it can improve the dust removal rate. [Brief explanation of the drawing]

[0016] [Figure 1] A schematic plan view showing a dust removal system according to one embodiment of the present invention. [Figure 2] Similarly, a schematic side view. [Figure 3] A schematic side view showing the process of removing dust from a subject. [Figure 4] A schematic plan view showing an example of a modified arrangement of the air blower units. [Figure 5] This diagram shows the difference in dust removal rates between continuous and intermittent airflow. [Modes for carrying out the invention]

[0017] First, we will explain how to efficiently remove dust using Figure 5.

[0018] Figure 5 shows an example of an experiment in which air (wind) was blown onto an object to determine the extent to which dust attached to the object was removed (dust removal rate).

[0019] Data (1) and data (2) in FIG. 5 show the dust removal rate when continuous wind (wind without interruption) is blown onto an object. Data (1) shows an example where continuous wind is blown for 10 seconds. Data (2) shows an example where continuous wind is blown for 30 seconds.

[0020] Data (3) and data (4) in FIG. 5 show the dust removal rate when intermittent wind (wind sent intermittently) is blown onto an object. Data (3) shows an example where the air blowing for 1 second is performed intermittently 10 times (total air blowing time is 10 seconds). Data (4) shows an example where the air blowing for 0.3 seconds is performed intermittently 5 times (total air blowing time is 1.5 seconds). It is assumed that the wind speeds of the above data (1) to (4) are all the same.

[0021] From the comparison between data (1) and data (2) in FIG. 5, it can be seen that for continuous wind, the longer the processing time (air blowing time), the higher the removal rate. Also, from the comparison between data (1) and data (3), it can be seen that for the same total processing time, the removal rate of intermittent wind is higher. Further, from the comparison between data (1) and data (4), and the comparison between data (2) and data (3), it can be seen that the processing time required to obtain an equivalent removal rate is shorter for intermittent wind.

[0022] From the above, it can be seen that in order to efficiently remove dust, it is preferable to blow intermittent wind onto the object. Therefore, hereinafter, a dust removal system 1 (an embodiment of the present invention) capable of blowing intermittent wind onto an object will be described.

[0023] The dust removal system 1 shown in FIG. 1 removes dust adhering to a target person or object (for convenience, hereinafter referred to as "target person P"). Here, dust refers to particles floating in the air such as pollen. Dust includes, in addition to pollen, particles such as dust, fine dust, and PM2.5 (particulate matter with a particle size of 2.5 μm or less). The dust removal system 1 mainly comprises a blowing unit 10, an ion generation unit 20, a passage detection unit 30, a blower 40, and a control unit 50.

[0024] The blower unit 10 discharges (blows) air toward the target person P. The blower unit 10 mainly comprises a housing 11 and an air outlet 12.

[0025] The housing 11 shown in Figure 2 is formed in the shape of a hollow box. The shape of the housing 11 is not particularly limited, but from the viewpoint of saving space, it is desirable to make the front-to-back and left-to-right widths as small as possible. Also, considering that air will be blown over the entire subject P (for example, from head to toe), it is desirable that the vertical width (height) of the housing 11 be larger than that of an average person.

[0026] The air outlet 12 is the part that discharges air supplied from the blower 40, which will be described later. The air outlet 12 is formed on one side of the housing 11. The air outlet 12 is provided so as to connect the inside and outside of the housing 11. The shape of the air outlet 12 is not particularly limited, but it is desirable to form it in a vertically elongated shape that extends from near the top end to near the bottom end of the housing 11, taking into consideration the air being blown over the entire target person P.

[0027] As shown in Figure 1, the dust removal system 1 comprises a plurality of blowing units 10. The blowing units 10 are arranged along the paths that the target person P is expected to travel (hereinafter referred to as "travel paths W"). Examples of travel paths W include the routes used by the target person P entering and exiting a building, or passages and corridors partitioned by walls, etc.

[0028] Specifically, multiple air blowing units 10 are arranged on both sides of the passageway W. Figure 1 shows an example in which 10 air blowing units 10 are arranged, with 5 units on each side of the passageway W. The air blowing units 10 are arranged so that their air outlets 12 face the passageway W (so that they can blow air toward the passageway W). An appropriate gap is provided between adjacent air blowing units 10 along the passageway W. In this embodiment, the air blowing units 10 arranged on both sides of the passageway W are arranged to face each other across the passageway W.

[0029] The spacing between the air blowing units 10 is set to such an extent that air can be intermittently blown onto the target person P as they travel along the passage path W, as will be described later. In other words, if the spacing between the air blowing units 10 is too close, the target person P will be constantly exposed to wind (continuous wind), so it is necessary to leave a certain amount of space between them.

[0030] The ion generating unit 20 discharges ion-containing air toward the target person P. The ion generating unit 20 mainly comprises a housing 21, an air outlet 22, and an ion generating section 23.

[0031] The housing 21 shown in Figure 2 is formed in a hollow box shape. The shape of the housing 21 is not particularly limited, but from the viewpoint of aesthetics, it is desirable to form it in a shape similar to the housing 11 of the blower unit 10. In this embodiment, the housing 21 of the ion generating unit 20 is formed to have substantially the same external shape as the housing 11 of the blower unit 10.

[0032] The air outlet 22 is the part that discharges air supplied from the blower 40, which will be described later. The air outlet 22 is formed on one side of the housing 21. The air outlet 22 is provided so as to connect the inside and outside of the housing 11. The shape of the air outlet 22 is not particularly limited, but it is desirable to form it in an elongated shape to allow air to be blown over the entire body of the subject P.

[0033] The ion generating unit 23 generates ions (positive ions and negative ions). The ion generating unit 23 can be configured to generate positive and negative ions by corona discharge. Specifically, the ion generating unit 23 generates positive ions (hydrogen ions) and negative ions (oxygen ions) by electrically decomposing molecules in the air (for example, water molecules) through corona discharge caused by applying a voltage to a pair of electrodes.

[0034] The ions generated by the ion generating unit 23 are not limited to hydrogen ions and oxygen ions; appropriate positive and negative ions can be used. Furthermore, cluster ions, which are formed by the aggregation of water molecules from the air around positive and negative ions, can also be used. The ion generating unit 23 is installed inside the housing 21 so that it can infuse ions into the air discharged from the air outlet 22.

[0035] As shown in Figure 1, the dust removal system 1 comprises a plurality of ion generating units 20. The ion generating units 20 are arranged along the passage path W so as to be aligned with the air blowing unit 10. The ion generating units 20 are positioned upstream of the air blowing unit 10 in the passage path W.

[0036] The ion generating units 20 are arranged on both sides of the passage path W. Figure 1 shows an example in which two ion generating units 20 are arranged, one on each side of the passage path W. The ion generating units 20 are arranged so that their air outlets 22 face the passage path W. In this embodiment, the ion generating units 20 arranged on both sides of the passage path W are positioned to face each other across the passage path W.

[0037] The passage detection unit 30 detects when a person P has passed a predetermined location on the passage path W. The passage detection unit 30 mainly comprises a housing 31 and a sensor 32.

[0038] The housing 31 shown in Figure 2 is formed in a hollow box shape. The shape of the housing 31 is not particularly limited, but from the viewpoint of aesthetics, it is desirable to form it in a shape similar to the housing 11 of the blower unit 10 and the housing 21 of the ion generation unit 20. In this embodiment, the housing 31 of the passage detection unit 30 is formed to have substantially the same external shape as the housing 11 of the blower unit 10, etc.

[0039] Sensor 32 is capable of detecting the presence of a subject P. Sensor 32 can employ, for example, a sensor that detects people using infrared light or ultrasound. Sensor 32 is located inside the housing 31. The sensor 32 is arranged so that the generating unit that emits infrared light, etc., and the receiving unit that receives infrared light, etc., are exposed to the outside of the housing 31.

[0040] As shown in Figure 1, the dust removal system 1 is equipped with a plurality of passage detection units 30. The passage detection units 30 are arranged along the passage path W so as to be aligned with the air blower unit 10 and the ion generating unit 20. The passage detection units 30 are positioned upstream of the air blower unit 10 and the ion generating unit 20 in the passage path W.

[0041] The passage detection units 30 are positioned on both sides of the passage path W. Figure 1 shows an example in which two passage detection units 30 are positioned, one on each side of the passage path W. The sensors 32 of the passage detection units 30 are positioned facing each other across the passage path W.

[0042] For example, by determining whether infrared light emitted from one passage detection unit 30 is received by the other passage detection unit 30, it is possible to determine whether or not a person P has passed between the two passage detection units 30. Note that this method for determining whether or not a person P has passed is just one example, and it is possible to detect the passage of a person P in any way depending on the type of sensor 32, etc.

[0043] The blower 40 shown in Figures 1 and 2 supplies air to the blower unit 10 and the ion generating unit 20. The blower 40 can pump air by operating its fan appropriately. The air pumped from the blower 40 is sent to the blower unit 10 and the ion generating unit 20 via the duct 41. The blower 40 is located inside the control unit 50, which will be described later.

[0044] As shown in Figure 1, the dust removal system 1 is equipped with multiple blowers 40. As an example, Figure 1 shows an example in which two blowers 40 are placed, one on each side of the passageway W. The blowers 40 are connected by ducts 41 to a blower unit 10 and an ion generating unit 20 installed on the same side of the passageway W, and can supply air to the blower unit 10, etc.

[0045] The control unit 50 shown in Figures 1 and 2 controls each part of the dust removal system 1 by performing various information processing operations. The control unit 50 is configured with a CPU and other processing units, as well as storage devices such as RAM, ROM, and HDD, housed inside its casing. The blower 40 is housed within the casing of the control unit 50. The control unit 50 is connected to the ion generation unit 20, the passage detection unit 30, and the blower 40 so as to be able to communicate with them.

[0046] As shown in Figure 1, the dust removal system 1 is equipped with multiple control units 50. As an example, Figure 1 shows a configuration in which two control units 50 are placed, one on each side of the passage path W. The control units 50 control the ion generating unit 20 and the blower 40 installed on the same side of the passage path W. The two control units 50 can also work in conjunction with each other to control the blower 40 and other components.

[0047] The following describes a dust removal method using the dust removal system 1 configured as described above, with reference to Figures 1 and 3. Note that, for the sake of clarity, Figure 3 only shows the air blower unit 10 of the dust removal system 1, omitting the other components (such as the ion generating unit 20).

[0048] Normally, the control unit 50 stops the blower 40 and other components. In this state, no air is blown out from the blower unit 10 and the ion generating unit 20.

[0049] When a person P passes between the passage detection units 30 along the passage path W, the passage detection units 30 detect this. When the passage detection units 30 detect the passage of person P, the control unit 50 activates the blower 40 and the ion generator 23. When the blower 40 is activated, air is sent to the blower unit 10 and the ion generator unit 20. The air sent to the blower unit 10 is blown out of the air outlet 12 of the blower unit 10 towards the passage path W. The air sent to the ion generator unit 20, containing ions generated by the ion generator 23, is blown out of the air outlet 22 of the ion generator unit 20 towards the passage path W.

[0050] As the subject P moves along the passage path W, it then passes between the ion generating units 20. At this time, wind containing ions from the ion generating units 20 is blown onto the subject P. This removes static electricity from the subject P's clothing, etc. (electrically neutralizes charged parts), making it easier for the air blowing unit 10 to remove dust.

[0051] Subsequently, the subject P passes sequentially between multiple air blowing units 10 arranged on both sides of the passage path W. Here, multiple air blowing units 10 are arranged along the passage path W at appropriate intervals. Therefore, when the subject P passes in front of an air blowing unit 10, wind is blown onto the subject P from that air blowing unit 10 (shown as "ON" in Figure 3). On the other hand, when the subject P passes in a location where there is no air blowing unit 10 (between adjacent air blowing units 10), no wind is blown onto the subject P (shown as "OFF" in Figure 3).

[0052] In this way, as the subject P moves along the passage path W, the state in which wind blows on the subject P and the state in which wind does not blow on the subject P alternate. In other words, an intermittent wind (intermittent airflow) can be blown on the subject P. By blowing an intermittent wind on the subject P, dust adhering to the subject P can be efficiently removed. In particular, in this embodiment, since an intermittent wind can be blown on the subject P while they are moving along the passage path W, the subject P does not need to stop for dust removal, and the subject P's time can be saved.

[0053] The control unit 50 can stop the blower 40, etc., after the subject P has passed through all the blower units 10. The fact that the subject P has passed through the blower units 10 can be detected by an appropriate sensor (not shown). It is also possible to stop the blower 40, etc., after a predetermined time has elapsed since the operation of the blower 40 (detection of subject P by the passage detection unit 30), assuming that the subject P has passed through the blower units 10.

[0054] Although Figure 1 shows an example where the passage path W is straight, this dust removal system 1 can also be applied when the passage path W is curved, for example, as shown in Figure 4. In this case, as shown in Figure 4, the air blowing units 10 are arranged along the curved passage path W. In this embodiment, since the multiple air blowing units 10 are independent of each other (formed separately), the air blowing units 10 can be arranged according to the shape of the passage path W. In other words, dust removal from the target person P can be performed regardless of the shape of the passage path W.

[0055] As described above, the dust removal system 1 according to this embodiment is The system comprises multiple ventilation units 10 that can be arranged in a line along the passage path W of the subject (subject P) and that can blow air toward the passage path W. This configuration increases the dust removal rate. Specifically, by blowing air from multiple blower units 10 onto a person P traveling along the passage path W, air can be blown onto the person P intermittently. This effectively removes dust. Furthermore, since this dust removal system 1 does not require complex control of the blower 40 or blower units 10 to generate intermittent airflow, the cost of the dust removal system 1 can be reduced.

[0056] Furthermore, the multiple blowing units 10 are arranged along the passage path W at predetermined intervals from each other, thereby enabling them to intermittently blow air onto the object passing along the passage path W. This configuration allows for the generation of intermittent airflow with relatively large variations in strength using a simple setup. Specifically, by arranging multiple air blowing units 10 at intervals from each other, it is possible to create relatively large variations in the strength of the air blown onto the target person P between the front of the air blowing unit 10 (the position facing the air outlet 12) and the other sides of the air blowing unit 10 (the position not facing the air outlet 12). This allows for more effective removal of dust.

[0057] Furthermore, the multiple blower units 10 are formed separately from each other. This configuration increases the versatility of the dust removal system 1. Specifically, since the air blowing units 10 can be individually positioned and oriented in any direction, the air blowing units 10 can be positioned according to the shape of the passage path W.

[0058] Furthermore, the dust removal system 1 is The system further comprises an ion generating unit 20 that generates ions capable of eliminating static electricity. By configuring it in this way, the dust removal rate can be increased.

[0059] Furthermore, the multiple air blowing units 10 are arranged on both sides of the passage path W. This configuration increases the dust removal rate. Specifically, because air can be blown onto the subject P from both sides, dust adhering to the subject P can be removed evenly.

[0060] Furthermore, the multiple air blowing units 10 arranged on both sides of the passage path W are positioned to face each other across the passage path W. By configuring it in this way, the dust removal rate can be increased.

[0061] Furthermore, the dust removal system 1 is The system further comprises a blower 40 that supplies air to at least two or more of the aforementioned blower units 10 in a single operation. This configuration simplifies the design. Specifically, since there is no need to provide a separate blower 40 for each blower unit 10, costs and installation space can be reduced.

[0062] Although embodiments of the present invention have been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention as described in the claims.

[0063] For example, the shape, number, and arrangement of each component (blower unit 10, ion generating unit 20, etc.) shown in the above embodiment are examples and can be changed as desired. For example, the blower unit 10 can be formed into a gate shape through which the target person P can pass. It is also possible to remove dust using only the airflow from the blower unit 10 without providing the ion generating unit 20. Furthermore, it is possible to house and arrange multiple units (blower unit 10, ion generating unit 20, etc.) in a single housing or to incorporate them into the wall of a passageway.

[0064] Furthermore, although the above embodiment shows an example in which the ion generating unit 20 and the passage detection unit 30 are arranged on one side of the passage path W (upstream of the air blowing unit 10) (see Figure 1), the present invention is not limited to this. For example, the ion generating unit 20 and the passage detection unit 30 may also be arranged on the other side of the passage path W (downstream of the air blowing unit 10). This makes it possible to remove dust from a person P traveling along the passage path W in the opposite direction to the direction shown in Figure 1.

[0065] Furthermore, although the above embodiment shows an example in which an appropriate gap is provided between adjacent air blowing units 10, the present invention is not limited to this. For example, it is also possible to arrange adjacent air blowing units 10 without leaving any gaps between them. In this case, for example, by creating a difference in the wind speed of the air blown out from adjacent air blowing units 10, an intermittent breeze can be blown onto the target person P. [Explanation of Symbols]

[0066] 1. Dust removal system 10 Blower Unit 20 Ion Generating Unit 30 Passage Detection Units 40 Blower 50 control units

Claims

1. A plurality of blowing units that can be arranged in line along a passage path of an object which includes a curved portion and a straight portion in a plan view, and which can blow air toward the passage path, Multiple blowing units are arranged along the passage path at predetermined intervals from one another, thereby enabling them to intermittently blow air onto the object passing along the passage path. Multiple of the aforementioned air blowing units are arranged on both sides of the passage path, The air outlets of the multiple air blowers arranged on both sides of the passage path are positioned opposite each other in pairs across the passage path, and are arranged so that a predetermined interval along the passage path is the same as that of the straight section on the inside of the bent section. Dust removal system.

2. The plurality of blower units are formed separately from each other. The dust removal system according to claim 1.

3. Further comprising an ion generating unit that generates statically neutralizing ions, A dust removal system according to claim 1 or claim 2.

4. The invention further comprises a blower that supplies air to at least two or more of the blowing units in a single operation. A dust removal system according to any one of claims 1 to 3.

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