Dust Removal System

Abstract

To provide a dust removal system capable of effectively removing dust.SOLUTION: A dust removal system comprises a static eliminator 20 installed on an elevator 2 (inside a car 2a) in a facility 1 and to eliminate static electricity from the people (the users) in the elevator 2 by emitting ions, and an air shower 30 installed in a prescribed area (an elevator hall 4) capable of getting on / off the elevator 2 and capable of removing the dust by blowing the wind to the person (the user) getting off the elevator 2.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a dust removal system for removing dust within a facility. [Background technology]

[0002] Conventionally, techniques for removing dust adhering to facility users have been publicly known, as described in Patent Document 1, for example.

[0003] Patent Document 1 describes an air shower device that blows air onto a user in an air shower room to remove dust. The air shower device described in Patent Document 1 is provided with an ion air blowing section that neutralizes the user's clothing with ions to make it easier to remove dust that adheres to the user's clothing by static electricity.

[0004] Here, it takes a certain amount of time to remove static electricity using ions, so if an ionized air blowing section is provided in an air shower apparatus like the air shower apparatus described in Patent Document 1, it is considered that the time required for removing dust in the air shower room will be longer, and further improvement is desired from the viewpoint of convenience. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2017-203582 A Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and a problem to be solved by the present invention is to provide a dust removal system that can improve convenience. [Means for solving the problem]

[0007] The problem to be solved by the present invention has been described above, and the means for solving this problem will now be described.

[0008] That is, in claim 1, a static elimination device is provided in an elevator in a facility, and the static elimination device eliminates static electricity from people in the elevator by emitting ions; The entrance to the elevator hall and exit the elevator. and pass through the entrance and an air shower capable of removing dust by blowing air onto people.

[0009] In claim 2, The facility includes an electrostatic elimination device that is installed in an elevator in the facility and that eliminates electrostatic charges on people in the elevator by emitting ions, and an air shower that is installed in a predetermined area where people can get on and off the elevator and that can remove dust by blowing air to people who get off the elevator, The flooring is provided between the elevator entrance and the air shower in the specified area and is made of a floor material that is difficult to become electrostatically charged.

[0010] In claim 3, a static elimination device that is installed in an elevator in the facility and that eliminates static electricity from people inside the elevator by emitting ions; and an air shower that is installed in a predetermined area where people can get on and off the elevator and that can remove dust by blowing air to people who get off the elevator; A first control unit capable of controlling the operation of the static eliminator and, the first control unit operates the static elimination device when the elevator stops at a floor where the specified area is provided.

[0011] In claim 4, a static elimination device that is installed in an elevator in the facility and that eliminates static electricity from people inside the elevator by emitting ions; and an air shower that is installed in a predetermined area where people can get on and off the elevator and that can remove dust by blowing air to people who get off the elevator; A first control unit capable of controlling the operation of the static eliminator and, the static elimination device is switchable between a first operation in which the ions are released in a first release amount and a second operation in which the ions are released in a second release amount greater than the first release amount, and the first control unit constantly operates the static elimination device in the first operation and switches the operation of the static elimination device to the second operation when the elevator stops at a floor where the specified area is provided.

[0012] In claim 5, there is provided a second control unit capable of controlling the operation of the air shower, and the second control unit operates the air shower in advance when the elevator stops at a floor where the specified area is located. Effect of the Invention

[0013] The present invention has the following advantages.

[0014] In claim 1, convenience can be improved.

[0015] In claim 2, It is possible to improve convenience. Dust can be effectively removed.

[0016] In claim 3, It is possible to improve convenience. The static eliminator can be operated as required.

[0017] In claim 4, It is possible to improve convenience. By increasing the amount of ions emitted by the static eliminator as necessary, dust can be removed more effectively.

[0018] According to claim 5, dust can be removed more effectively. [Brief description of the drawings]

[0019] [Figure 1] 1A is a side view showing a schematic diagram of a facility in which a dust removal system according to a first embodiment of the present invention is installed. FIG. [Diagram 2] FIG. 1 is a plan view showing a schematic diagram of a dust removal system. [Diagram 3] FIG. 1 is a block diagram showing a dust removal system. [Figure 4] FIG. 2 is a perspective view showing a schematic diagram of dust removal by the dust removal system. [Diagram 5] 5 is a flowchart showing an example of pollen removal control. [Figure 6] 10 is a flowchart showing a modified example of pollen removal control. [Figure 7] 13 is a graph showing the time required for static elimination. [Figure 8] Graph showing the effect of static elimination in removing pollen. [Figure 9] FIG. 4 is a plan view showing a schematic diagram of a dust removal system according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] The dust removal system 10 according to the first embodiment of the present invention will be described below. In the following description, the front-rear direction, left-right direction, and up-down direction will be defined based on the arrows in the drawings.

[0021] First, a facility 1 in which a dust removal system 10 is installed will be described with reference to FIG. 1. The facility 1 has a space that can be used by users. As shown in FIG. 1, the inside of the facility 1 is divided into multiple floors. The facility 1 may have, for example, 10 or more floors. In this embodiment, an example is shown in which the facility 1 is an accommodation facility such as a hotel.

[0022] As shown in Fig. 1 to Fig. 4, a facility 1 is equipped with an elevator 2 used for movement between floors. In this embodiment, an example in which two elevators 2 are installed is shown (see Fig. 2). The elevator 2 is equipped with a car 2a, a destination floor button 2b, and an elevator control unit 2c.

[0023] The car 2a shown in Fig. 2 and Fig. 4 is a portion in which passengers ride. The car 2a rises and falls by an appropriate power source. The car 2a is provided with an appropriate door. In addition, the car 2a is provided with an appropriate ventilation fan (not shown) for ventilating the inside.

[0024] 3 can be operated to specify a destination floor of the elevator 2. The destination floor button 2b is provided inside the car 2a. The destination floor buttons 2b are provided in a number corresponding to each floor.

[0025] The elevator control unit 2c controls the operation of the elevator 2. The elevator control unit 2c acquires information based on the operation of the destination floor button 2b, and controls the movement of the car 2a to the floor corresponding to the destination floor button 2b. The elevator control unit 2c also acquires position information and the like of the car 2a of the elevator 2, and is capable of controlling the operation of the elevator 2 based on the position information.

[0026] Each floor of the facility 1 is provided with a plurality of guest rooms (not shown) in which users (guests) of the facility 1 can stay. Also, each floor is provided with an elevator entrance 3, an elevator hall 4, and a passageway 5, as shown in Figs. 2 and 4.

[0027] The elevator entrance 3 is for passengers to get on and off the elevator 2. The number of elevator entrances 3 provided corresponds to the number of elevators 2 (two in this embodiment). The elevator entrances 3 are provided with appropriate doors that open and close in conjunction with the doors of the car 2a.

[0028] The elevator hall 4 is a space where passengers get on and off the elevator 2. The elevator hall 4 faces two elevator entrances 3.

[0029] The passage 5 is for passage between the elevator hall 4 and the guest rooms. The passage 5 faces the entrance to the elevator hall 4 and the entrance to each guest room.

[0030] A user of facility 1 gets on elevator 2 from elevator hall 4 on the first floor, for example, gets off at elevator hall 4 on the destination floor, and passes through passage 5 to enter a desired guest room.

[0031] Next, the dust removal system 10 will be described with reference to Figs. 1 to 4. The dust removal system 10 removes dust that enters the interior of the facility 1. Here, dust refers to particles suspended in the air, such as pollen. In addition to pollen, dust includes particles such as sand dust, fine dust, and PM2.5 (particulate matter with a particle size of 2.5 μm or less). Pollen from cedar, cypress, and the like contains allergens (allergens) that cause allergic symptoms (hay fever). For this reason, for example, if pollen attached to the clothes of a user enters the interior of a guest room, a user with hay fever may not be able to stay comfortably.

[0032] The dust removal system 10 is installed on a specific floor (hereinafter referred to as a "pollen control floor 6") where measures have been taken to prevent pollen from entering guest rooms, among the floors of the facility 1. Specifically, the dust removal system 10 is installed in the elevator 2 and the elevator hall 4 of the pollen control floor 6.

[0033] In this embodiment, a relatively high-rise (middle or higher) floor among the floors of the facility 1 is set as the pollen-prevention floor 6. In this embodiment, a floor on the first floor where the time from when a user boards the elevator 2 until arrival is 20 seconds or more is set as the pollen-prevention floor 6. Specifically, any floor located on the fifth floor or higher can be used as the pollen-prevention floor 6, for example.

[0034] The dust removal system 10 can prevent pollen from entering from the outside into a guest room on the pollen-resistant floor 6. The dust removal system 10 includes a static eliminator 20, an air shower 30, a floor material 40, and a control unit 50.

[0035] The static eliminator 20 shown in Figs. 2 to 4 is capable of eliminating static electricity from the clothes, etc., of a user who is in the elevator 2. In this embodiment, an example is shown in which the static eliminator 20 is provided inside the car 2a of the elevator 2. Note that, instead of the above example, the static eliminator 20 may be provided outside the car 2a of the elevator 2. Furthermore, the static eliminator 20 may be provided in a general air conditioner installed in the car 2a of the elevator 2. The static eliminator 20 includes an air blower 21 and an ion generator 22.

[0036] The blower 21 is a part that blows air into the interior of the elevator 2. The blower 21 blows out wind generated by appropriate operation of a fan. The blower 21 can adjust the strength of the blowing volume by changing the rotation speed of the fan.

[0037] The ion generating unit 22 generates ions (positive ions and negative ions). The ion generating unit 22 may be configured to generate positive ions and negative ions by corona discharge. Specifically, the ion generating unit 22 electrically decomposes molecules in the air (e.g., water molecules) by corona discharge caused by applying a voltage to a pair of electrodes, and generates positive ions (hydrogen ions (H + )) and negative ions (oxygen ions (O 2 - )) is generated.

[0038] The ions generated by the ion generating unit 22 include hydrogen ions (H + ) and oxygen ions (O 2 - ) and appropriate positive and negative ions can be used. In addition, cluster ions formed by gathering water molecules in the air around positive and negative ions can also be used as the ions.

[0039] The ion generating section 22 is provided inside the static eliminator 20 so as to cause ions to be contained in the air blown out by the blower 21. The ion generating section 22 is disposed in the vicinity of the blower 21, for example.

[0040] The static eliminator 20 as described above releases ions into the inside of the car 2a of the elevator 2 by blowing wind (ionic wind) containing ions generated by the ion generating unit 22 using the blower unit 21. Furthermore, the static eliminator 20 can adjust the output of the blower unit 21 and the ion generating unit 22 to switch between a weak operation in which a relatively small amount of ionic wind is blown out and a strong operation in which a larger amount of ionic wind is blown out than in the weak operation (a larger amount of ions is released).

[0041] Here, if the user's clothes, etc. are statically charged (electrified), the clothes, etc. may attract dust, making it difficult to remove the dust. Therefore, by blowing out ionized wind from the static eliminator 20 inside the elevator 2 and eliminating static electricity from the user's clothes, etc. (electrically neutralizing the charged parts), it is possible to make it easier to remove the dust adhering to the user's clothes, etc. In addition, by blowing out ionized wind into the inside of the car 2a, the released ions can break down proteins and odorous components on the surfaces of microorganisms (bacteria and viruses) in the air. This makes it possible to purify the air inside the car 2a.

[0042] The air shower 30 shown in Figs. 1 to 3 is for removing dust particles attached to the clothes of users by blowing out air. The air shower 30 is formed in a gate shape. A pair of air showers 30 are provided with a space between them, sandwiching an area through which users pass. The air shower 30 is formed in a generally rectangular shape that is long vertically when viewed from the front (when viewed in the opposite direction). As shown in Fig. 2, the air shower 30 is installed at the entrance on the passage 5 side of the elevator hall 4. In this way, the air shower 30 is provided at a position separated from each elevator entrance 3. The air shower 30 can be configured to incorporate a filter such as a HEPA filter and blow out purified air. The air shower 30 includes an air blower 31, an air intake 32, a pollen sensor 33, and a microparticle sensor 34.

[0043] The blower 31 shown in FIG. 4 is a part that blows air toward the user. The blower 31 blows out wind generated by the operation of an appropriate fan. The blower 31 can blow air at a wind speed suitable for dust removal (for example, 5 to 20 m / s). It takes some time for the blower 31 to reach the above wind speed after it is started. A plurality of blowers 31 are formed on the surface (front) of the air shower 30 that faces the user. In this embodiment, an example is shown in which two rows of three blowers 31 are provided with a gap between them vertically (total of six). The number of blowers 31 is not limited to the above example, and any number can be set.

[0044] The intake section 32 is a section that sucks in dust together with air. The intake section 32 sucks in air by operating an appropriate fan. The intake section 32 is provided in front of the air shower 30, below the blower section 31. The intake section 32 may be equipped with an appropriate filter that collects dust. Dust blown off the user's clothes by the blower section 31 is removed by being sucked into the intake section 32.

[0045] The pollen sensor 33 is a sensor capable of measuring the amount of pollen in the air. As the pollen sensor 33, a sensor that optically detects pollen taken into the pollen sensor 33 can be used. The pollen sensor 33 is provided inside the intake unit 32.

[0046] The microparticle sensor 34 is a sensor capable of measuring the amount of microparticles in the air, such as PM2.5. As the microparticle sensor 34, a sensor that optically detects microparticles taken into the microparticle sensor 34 can be used. The microparticle sensor 34 is provided inside the intake section 32.

[0047] 2 and 4 constitutes the floor of the elevator hall 4. The floor material 40 is provided throughout the elevator hall 4. The floor material 40 includes a floor mat 41.

[0048] The floor mat 41 constitutes the surface (upper surface) of the floor material 40. The floor mat 41 is provided on an appropriate floor base such as a temporary layer.

[0049] The floor mat 41 is made of a material that is relatively difficult to be charged. Specifically, the material of the floor mat 41 may be one that has a chargeability value of 3 kV or less (preferably 1 kV or less) measured according to, for example, "JIS L 1021-16:2007 (Test methods for textile floor coverings - Part 16: Electrostatic charge - Walking test method)". The material of the static control part 44 may be one that has an evaluation value (grade) of 1 (floor material and floor with extremely high antistatic performance), 2 (floor material and floor with relatively high antistatic performance), or 3 (floor material and floor with antistatic performance) evaluated according to, for example, "JIS A 1455 (Antistatic performance of floor material and floor - Measurement and evaluation method)". In this embodiment, the floor mat 41 is made of a conductive material such as chemical fiber or metal fiber (metal fiber) that has been appropriately antistatically treated.

[0050] The lower part of the floor mat 41 is configured to easily dissipate static electricity from the floor mat 41. For example, a suitable conductive base may be provided between the floor mat 41 and the temporary lining. As the floor mat 41, a suitable antistatic floor mat may be used.

[0051] The control unit 50 shown in Fig. 3 is capable of processing various types of information. The control unit 50 is mainly composed of an arithmetic processing unit such as a CPU, and storage devices such as a RAM, a ROM, and a HDD. The control unit 50 is communicatively connected to the elevator control unit 2c, the static eliminator 20, and the air shower 30. Various locations can be used to install the control unit 50. For example, the control unit 50 may be provided in the air shower 30, or may be installed in an appropriate location within the facility 1 (for example, an office, etc.).

[0052] The dust removal system 10 can execute "pollen removal control" for suppressing the intrusion of pollen from outside into guest rooms on the pollen-prevention floor 6 by operating the static eliminator 20 and the air shower 30 under the control of the control unit 50. The pollen removal control will be described below with reference to the flowchart of FIG. 5.

[0053] In step S10, the control unit 50 determines whether or not the destination floor button 2b for the pollen prevention floor 6 has been operated. The control unit 50 communicates with the elevator control unit 2c to obtain information based on the operation of the destination floor button 2b, and makes the above determination based on the information.

[0054] When the control unit 50 determines that the destination floor button 2b of the pollen prevention floor 6 has been operated, the control unit 50 proceeds to the process of step S11. On the other hand, when the control unit 50 determines that the destination floor button 2b of the pollen prevention floor 6 has not been operated, the control unit 50 ends the pollen removal control.

[0055] In step S11, the control unit 50 starts the static eliminator 20 (the blower unit 21 and the ion generator 22). That is, the control unit 50 controls the static eliminator 20 to blow out ion wind into the interior of the elevator 2. At this time, the control unit 50 operates the static eliminator 20 at high power. This allows static elimination of the user's clothes, etc., by the ion wind before dust removal by the air shower 30, as shown in FIG. 4.

[0056] Dust removal by the static eliminator 20 continues until the elevator reaches the pollen-prevention floor 6. The control unit 50 acquires position information of the car 2a of the elevator 2, for example, by communicating with the elevator control unit 2c, and stops the operation of the static eliminator 20 based on the information.

[0057] In this embodiment, when a user gets on the elevator 2 from the first floor, it takes more than 20 seconds to arrive at the pollen control floor 6. Therefore, in this case, the user is neutralized for more than 20 seconds inside the car 2a of the elevator 2. After executing the process of step S11, the control unit 50 proceeds to the process of step S12.

[0058] In step S12, the control unit 50 starts (the air blowing unit 31 and the air intake unit 32). That is, the control unit 50 starts the air shower 30 in advance before the user arrives at the pollen-protected floor 6. Specifically, the control unit 50 uses the time when the elevator 2 arrives (stops) at the pollen-protected floor 6 as a reference, and starts (operates) the air shower 30 so that the wind speed of the air shower 30 becomes a value suitable for dust removal at that time. In this way, the time when the user is on the elevator 2 (travel time) can be used to increase the wind speed of the air shower 30 to a value suitable for dust removal.

[0059] The timing for starting the air shower 30 can be, for example, the timing at which the process moves to step S12 (the timing at which the destination floor button 2b for the pollen-prevention floor 6 is operated). Also, the timing can be, for example, the timing obtained by counting back the time it takes for the air speed to reach a desired value after the air shower 30 is started from the time when the car 2a of the elevator 2 is expected to arrive (stop) at the pollen-prevention floor 6.

[0060] As shown in FIG. 4, a user who has arrived at the pollen-prevention floor 6 walks on the floor mat 41 in the elevator hall 4 to the location where the air shower 30 is installed. Then, dust is removed from the user by the air shower 30. That is, the air shower 30 blows away dust attached to the user's clothes, etc. with air blown out from the blower 31. The dust is sucked into the suction unit 32. In this way, the air shower 30 can remove dust such as pollen attached to the user's clothes, etc. In this embodiment, dust removal by the air shower 30 is performed after the static eliminator 20 eliminates static electricity from the user's clothes, etc., so that dust removal can be performed more effectively.

[0061] In this embodiment, the floor mat 41 is configured to be difficult to be charged. Therefore, it is possible to prevent a user who has been neutralized by the static eliminator 20 from becoming charged again when walking on the floor mat 41. This allows dust removal by the air shower 30 to be performed more effectively.

[0062] Furthermore, the control unit 50 can control the operation of the blower unit 31, ion generating unit 22, and air intake unit 32, for example, based on the detection results of the pollen sensor 33 and the microparticle sensor 34 while the air shower 30 is in operation. Specifically, the control unit 50 can execute control to increase the output of the blower unit 31 and the air intake unit 32 when the detection results of the pollen sensor 33 and the microparticle sensor 34 are large. Furthermore, the control unit 50 can execute control to decrease the output of the blower unit 31 and the air intake unit 32 when the detection results of the pollen sensor 33 and the microparticle sensor 34 are small.

[0063] The control unit 50 stops the operation of the air shower 30 when a predetermined time (for example, about 5 to 10 seconds) has elapsed since the air shower 30 started removing dust from the user. The control unit 50 can estimate that dust removal has started, for example, when an appropriate human presence sensor (not shown) detects a user at the position of the air shower 30. The control unit 50 can also estimate that dust removal has started, for example, based on the time when the car 2a of the elevator 2 arrives at the pollen-prevention floor 6.

[0064] After executing the process of step S12, the control unit 50 ends the pollen removal control.

[0065] The above-described aspect of the pollen removal control is merely an example, and the pollen removal control is not limited to the above-described example. In the following, a modified example of the pollen removal control will be described with reference to the flowchart of FIG.

[0066] In this modified example, the process of step S11A is mainly different from the flowchart of Fig. 5. In the following explanation, the same points as those in the flowchart of Fig. 5 will be omitted as appropriate.

[0067] In this modification, the control unit 50 constantly operates the static eliminator 20 (the blower unit 21 and the ion generating unit 22) at low power. This makes it possible to purify the air inside the car 2a of the elevator 2.

[0068] In step S11A, the control unit 50 controls the operation of the static eliminator 20 to switch from low operation to high operation. That is, when the control unit 50 determines that the destination floor button 2b for the pollen-protected floor 6 has been operated (step S10: YES), it operates the static eliminator 20 so as to increase the amount of ion wind blown out (amount of ions released). This makes it possible to eliminate static electricity from the user's clothes, etc., by using the ion wind while the user is in the elevator 2, making it easier to remove dust by the air shower 30.

[0069] The high-power operation of the static eliminator 20 is continued until the elevator 2 arrives at the pollen-prevention floor 6. That is, when the car 2a of the elevator 2 arrives at the pollen-prevention floor 6, the control unit 50 controls the static eliminator 20 to switch from high-power operation to low-power operation.

[0070] The pollen removal control is not limited to the control shown in the flowcharts of Figures 5 and 6, and the processing performed in the pollen removal control can be changed as appropriate. For example, in the above example, the processing in step S12 is executed after the processing in step S11 (step S11A), but the present invention is not limited to this configuration. For example, the processing in step S11 (step S11A) may be executed after the processing in step S12 is executed, or the processing in step S11 (step S11A) and the processing in step S12 may be executed simultaneously.

[0071] The time required for static elimination will be described below with reference to FIG.

[0072] The graph shown in FIG. 7 shows the relationship between the amount of static electricity (kV) of a test specimen simulating clothing worn by a user and the time (seconds) for static elimination when static elimination is performed by the static eliminator 20. In the graph, the test specimen in its natural state (not subjected to static elimination) shown by the dashed line shows that the amount of static electricity is hardly reduced, whereas the test specimen on which static elimination is performed shown by the solid line shows that the amount of static electricity is greatly reduced. Specifically, the static electricity amount of the test specimen on which static elimination is performed falls below half 10 seconds after the start of static elimination, and the static electricity amount is 1 kV or less after 20 seconds. In addition, the static electricity amount of the test specimen on which static elimination is performed gradually decreases after 20 seconds. Thus, the graph shows that the effect of static elimination is remarkable when static elimination is performed by the static eliminator 20 for 20 seconds or more.

[0073] The effect of static elimination in removing pollen will be described below with reference to FIG.

[0074] The graph shown in FIG. 8 shows a comparison of the pollen removal rate when the static elimination device 20 was used for a predetermined time (20 seconds or more) to when static elimination was not performed in a test in which dust was removed from a test specimen simulating clothing worn by a user using the air shower 30. Here, the "pollen removal rate" is the value (B / A) obtained by dividing the amount A of simulated pollen (powder simulating pollen) that can be scattered (excluding that which is stuck to the test specimen and cannot be removed by the air shower 30) among the simulated pollen (powder simulating pollen) attached to the test specimen by the amount B of the simulated pollen A that was removed by the wind of the air shower 30. In the graph, the pollen removal rate of the test specimen that was not subjected to static elimination was 76.9%, while the pollen removal rate of the test specimen that was subjected to static elimination was 84.2%. This shows that pollen (dust) can be effectively removed by performing static elimination using the static elimination device 20.

[0075] As described above, the graphs in Figures 7 and 8 show that static electricity can be effectively removed from the clothes of the user by performing static elimination for 20 seconds or more using the static eliminator 20. It was also shown that dust removal using the air shower 30 can be effectively performed in a state where static electricity has been removed in this way.

[0076] According to the dust removal system 10 of this embodiment, the static elimination device 20 performs static elimination while the user is in the elevator 2 (20 seconds or more), so it is easy to ensure the time required for effective static elimination. Furthermore, according to the dust removal system 10, unlike a case where static elimination is performed after the user arrives at the pollen-prevention floor 6, the time required for dust removal can be shortened, improving convenience.

[0077] Furthermore, according to the dust removal system 10, the static elimination device 20 can eliminate static electricity while the user is standing still inside the cage 2a of the elevator 2, which is a closed space. Therefore, ions are released while the distance between the static elimination device 20 and the user is kept close, and the ions can easily come into contact with the user's clothes without fail before disappearing. In this way, static elimination of the user can be performed in an environment suitable for static elimination.

[0078] In addition, in this embodiment, one air shower 30 is installed at the entrance / exit on the aisle 5 side of the elevator hall 4, so that dust can be removed by the common air shower 30 for users who have been de-electrified in any of the multiple (two) elevators 2.

[0079] Also, in this embodiment, for example, the control unit 50 can execute control such that the inside of the car 2a of the elevator 2 is kept at negative pressure (lower air pressure than the outside) by the ventilation fan of the car 2a. This makes it possible to prevent dust such as pollen scattered inside the car 2a from entering the pollen-prevention floor 6. In this case, when the car 2a arrives at the pollen-prevention floor 6 and the door opens, the wind flowing into the car 2a can be used to remove dust from the clothes of users, etc. The above control can be executed, for example, when the destination floor button 2b on the pollen-prevention floor 6 is operated.

[0080] As described above, the dust removal system 10 according to the first embodiment of the present invention has the following features: A static elimination device 20 is provided in an elevator 2 (inside a car 2a) in the facility 1 and eliminates static electricity from people (users) in the elevator 2 by emitting ions; An air shower 30 that is installed in a predetermined area (elevator hall 4) where the elevator 2 can be boarded and disembarked, and that can remove dust by blowing air to people (users) who get off the elevator 2; It is equipped with the following.

[0081] This configuration can improve convenience. That is, after the person (user) is neutralized by the static eliminator 20, dust is removed by the air shower 30, so that dust can be effectively removed. In addition, static elimination can be performed by utilizing the time that the person (user) is in the elevator 2. This can shorten the time required for dust removal after arriving at the specified area (elevator hall 4), improving convenience.

[0082] The dust removal system 10 also includes: It is provided in the specified area (elevator hall 4) between the entrance / exit of the elevator 2 (elevator entrance / exit 3) and the air shower 30, and is equipped with a floor material 40 (floor mat 41) that is made to be less prone to static electricity.

[0083] With this configuration, dust can be effectively removed. In other words, it is possible to prevent a person (user) who has had static electricity removed inside the elevator 2 from becoming charged again when walking on the floor material 40 (floor mat 41) to the location where the air shower 30 is installed.

[0084] The dust removal system 10 also includes: A first control unit (control unit 50) capable of controlling the operation of the static eliminator 20 is provided, The first control unit (control unit 50) When the elevator 2 stops at a certain floor (pollen-prevention floor 6) in the predetermined area (elevator hall 4) (step S10: YES), the static eliminator 20 is operated (step S11).

[0085] With this configuration, the static eliminator 20 can be operated as required.

[0086] The dust removal system 10 also includes: A first control unit (control unit 50) capable of controlling the operation of the static eliminator 20 is provided, The static eliminator 20 includes: A first operation (weak operation) in which the ions are released at a first release amount and a second operation (strong operation) in which the ions are released at a second release amount larger than the first release amount are switchable; The first control unit (control unit 50) The static elimination device 20 is constantly operated in the first operation (weak operation), and when the elevator 2 stops at a certain floor (pollen control floor 6) in the specified area (elevator hall 4) (step S10: YES), the operation of the static elimination device 20 is switched to the second operation (strong operation) (step S11A).

[0087] With this configuration, dust can be more effectively removed by increasing the amount of ions emitted by the static eliminator 20 as necessary. In addition, the static eliminator 20 is constantly operated in the first operation (weak operation), so that the air inside the elevator 2 can be purified.

[0088] The dust removal system 10 also includes: A second control unit (control unit 50) capable of controlling the operation of the air shower 30 is provided. The second control unit (control unit 50) When the elevator 2 stops at a certain floor (pollen-prevention floor 6) in the specified area (elevator hall 4) (step S10: YES), the air shower 30 is operated in advance (step S12).

[0089] With this configuration, dust can be removed more effectively. That is, the wind speed of the air shower 30 can be increased to a value suitable for dust removal by utilizing the time that the person (user) is in the elevator 2. This makes it possible to remove dust more effectively. Also, the time required for dust removal after the person (user) arrives in the specified area (elevator hall 4) can be shortened.

[0090] The elevator hall 4 according to this embodiment is one form of the predetermined area according to the present invention. Moreover, the pollen-protected floor 6 according to this embodiment is one form of a floor having an elevator hall according to the present invention. The control unit 50 according to this embodiment is one embodiment of the first control unit and the second control unit according to the present invention.

[0091] Although the embodiment of the present invention has been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention described in the claims.

[0092] For example, in the above first embodiment, an example was shown in which the air shower 30 was provided at a position separated from each elevator entrance / exit 3, but the present invention is not limited to this. For example, the air shower 30 may be provided close to the elevator entrance / exit 3 as in a dust removal system 10 according to a second embodiment of the present invention shown in Fig. 9.

[0093] In the dust removal system 10 according to the second embodiment, an example is shown in which one elevator 2 and one elevator entrance 3 are provided. Note that a plurality of elevators 2 and elevator entrances 3 may be provided. Also, the number of air showers 30 that can be installed corresponds to the number of elevator entrances 3.

[0094] According to this embodiment, after static elimination by the static eliminator 20 has been performed on a user in the elevator 2, dust can be removed by the air shower 30 immediately. Also, in this embodiment, it is not necessary to use a floor mat 41 that is difficult to become charged for the floor material 40 in the elevator hall 4.

[0095] In addition, in this embodiment, the output strength of the air blower 31 and the air suction unit 32 is controlled based on the detection results of the pollen sensor 33 and the microparticle sensor 34 while the air shower 30 is in operation, but this is not limited to the above. For example, the outputs of the air blower 31 and the air suction unit 32 may be kept constant, and control may be performed to extend or shorten the operation time of the air shower 30 based on the detection results of the pollen sensor 33 and the microparticle sensor 34.

[0096] In the present embodiment, an example has been shown in which the operation of the air shower 30 is controlled based on the detection results of the pollen sensor 33 and the microparticle sensor 34 provided in the air shower 30, but the present invention is not limited to this embodiment. For example, the operation of the air shower 30 does not have to be controlled using the detection results of each sensor. In this case, the pollen sensor 33 and the microparticle sensor 34 do not have to be provided in the air shower 30.

[0097] In addition, in this embodiment, in step S12 of pollen removal control, the air shower 30 is activated in advance based on the time when the elevator 2 arrives (stops) at the pollen countermeasure floor 6. However, the configuration is not limited to such a mode. For example, based on the time when the user is expected to come to the location of the air shower 30, the air shower 30 may be activated (operated) so that the wind speed of the air shower 30 becomes a value suitable for dust removal at that time.

[0098] In addition, in this embodiment, the pollen countermeasure floor 6 is set as a floor where the time from when the user boards the elevator 2 on the first floor to arrival is 20 seconds or more. However, the configuration is not limited to such a mode. For example, the pollen countermeasure floor 6 may be a relatively low floor. In this case, for example, the pollen countermeasure floor 6 may be a floor where the time from when the user boards the elevator 2 on the first floor to arrival is about 10 to 20 seconds. Note that the number of seconds from the first floor to the pollen countermeasure floor 6 can be appropriately set according to the performance of the static eliminator 20 provided in the elevator 2 (such as the required time for static elimination).

[0099] In addition, in this embodiment, an example in which one static eliminator 20 is provided for one elevator 2 is shown. However, the configuration is not limited to such a mode, and a plurality of static eliminators 20 may be provided for one elevator 2.

[0100] In addition, in this embodiment, an example in which the facility 1 is a lodging facility is shown. However, the configuration is not limited to such a mode, and various facilities such as an office building or an apartment building can be adopted as the facility 1.

Explanation of Reference Numerals

[0101] 1 Facility 10 Dust Removal System 30 Air Shower 40 Floor Material 50 Control Unit

Claims

1. A static elimination device that is installed in an elevator in the facility and that eliminates static electricity from people in the elevator by emitting ions; an air shower that is installed at an entrance between the elevator hall and an adjacent passage in an elevator hall that is a predetermined area where people can get on and off the elevator, and that can remove dust by blowing air onto people who get off the elevator and pass through the entrance; Equipped with Dust removal system.

2. A static elimination device installed in an elevator in a facility and emitting ions to eliminate static electricity from people in the elevator; an air shower that is installed in a predetermined area where people can get on and off the elevator and can remove dust by blowing air to people who get off the elevator; Equipped with The floor material is provided between the elevator entrance and the air shower in the specified area and is formed to be difficult to be charged. Dust removal system.

3. A static elimination device installed in an elevator in a facility and emitting ions to eliminate static electricity from people in the elevator; an air shower that is installed in a predetermined area where people can get on and off the elevator and can remove dust by blowing air to people who get off the elevator; A first control unit capable of controlling an operation of the static eliminator; Equipped with The first control unit is When the elevator stops at a floor where the predetermined area is provided, the static elimination device is operated. Dust removal system.

4. A static elimination device installed in an elevator in a facility and emitting ions to eliminate static electricity from people in the elevator; an air shower that is installed in a predetermined area where people can get on and off the elevator and can remove dust by blowing air to people who get off the elevator; A first control unit capable of controlling an operation of the static eliminator; Equipped with The static eliminator comprises: A first operation in which the ions are emitted at a first emission amount and a second operation in which the ions are emitted at a second emission amount greater than the first emission amount are switchable; The first control unit is The static eliminator is constantly operated in the first operation mode, and when the elevator stops at a floor where the predetermined area is provided, the operation of the static eliminator is switched to the second operation mode. Dust removal system.

5. A second control unit capable of controlling the operation of the air shower, The second control unit is When the elevator stops at a floor where the predetermined area is provided, the air shower is operated in advance. A dust removal system according to any one of claims 1 to 4.

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