JP5014815B2 - Air shower equipment - Google Patents

Description

  The present invention relates to an air shower device that can effectively remove fine particles such as pollen and dust adhering to a human body and clothes using air.

  Due to human outdoor and indoor activities, the body, clothes and belongings are invisible, but particulate matter such as pollen and dust adheres. For this reason, when entering public buildings such as hospitals, research laboratories, hotels, etc., there are an increasing number of cases where air shower devices are used to remove particulate matter.

  Thus, there is Patent Document 1 as a conventional air shower device. In the air shower apparatus of this patent document 1, the ventilation fan and the filter are provided as an air shower apparatus in the space without the door provided close to the building.

Moreover, as an air shower apparatus installed indoors, there is an apparatus shown in FIG. This air shower device is provided with a door b that can be opened and closed in a telephone box-type casing a, and a partition plate c in the casing a is provided with a plurality of shower nozzles d, although not shown, A blower fan and a filter are installed on the rear surface of c.
JP 2006-194468 A

  In addition to the above-mentioned publications, there are JP 2000-189915 A, Utility Model Registration No. 3124427, and the like as prior art documents of the air shower device.

  In the air shower apparatus shown in Patent Document 1, when a person enters a space without a door, the air introduced from the air inlet and sucked into the blower fan is supplied by the blower fan and passes through the filter. The air is fed into a space where a person is present from a non-exhaust port, and fine particles such as pollen and dust adhering to the human body, clothing and the like are removed by this air. The air after being used in the shower is exhausted outside the space with the particulate matter.

  In the air shower apparatus shown in FIG. 8, when a person who opens the door and enters the casing a closes the door b, the air sucked from the intake port (not shown) passes through the filter and is not shown. Particulate matter such as pollen and dust attached to a person's body and clothing is removed by the air from the mouth to the space where the person is present. The air after being subjected to the air shower is circulated through a flow path (not shown) formed in the casing a accompanied by the particulate matter, and the particulate matter is removed by the filter, and again supplied to the air shower. It is made.

  However, in the air shower device of Patent Document 1, since there is no door at the part where people enter and exit, the air after the air shower is discharged to the outside, and the particulate matter is scattered outside.

  In the case of the air shower apparatus shown in FIG. 8, since there is a door b and air is circulated in the casing a, the air after the air shower is not discharged to the outside, and the particulate matter is not in the casing a. Although it can be prevented from being scattered to the outside, since there is the door b, there is a feeling that the person is confined in a narrow space in the casing a, and after the air shower ends, the person goes out of the casing a. Therefore, if the knob of the door b is touched, there is a risk of contact contamination with contaminants such as bacteria.

  In view of such a situation, the present invention does not discharge polluted air after air shower to the outside, does not feel clogged, is not affected by cold or heat, and is further in contact with a door knob or the like. An object of the present invention is to provide an air shower device that can prevent contamination.

The air shower device according to claim 1 has a booth portion that forms a space for a person to enter for an air shower and has an opening / exit that does not have a door , four side surfaces, and a ceiling surface, and is integral with the booth portion. In the air shower device provided with a shower unit storage section that stores the shower unit connected to
An arc-shaped portion having a predetermined radius of curvature is formed at the corner portion of the side wall of the booth portion opposite to the side where the removable partition plate that partitions the shower unit storage portion is present,
The shower unit is
One side of the frame body that is a casing is integrally connected to the partition plate ,
In the partition plate,
A slit extending over almost the entire height on the entrance / exit side, a through hole with a punching metal extending from the foot of the person to the upper part of the head on the side facing the entrance / exit of the booth part, and between the slit and the through hole A blower nozzle that is a first air blowing means for blowing the purified air into the booth,
The shower unit is
When housed in the shower unit housing part, the frame located on the side facing the booth part on the back side of the partition plate has an air suction port for sucking air through a prefilter,
In the frame,
A blowing means, a HEPA filter on the discharge side of the blowing means, and a front space on the booth side of the HEPA filter,
The front space is
The second air including the first air blowing means and the slit which is connected to the slit through a vertical header pipe and blows a part of the purified air along the inner wall surface of the booth part. Contact with the air blowing means,
The air blown into the booth from the second air blowing means is
A shower unit that flows along the inner wall surface of the booth part and forms an air curtain at the entrance and exits the air blown from the first air blowing means and the second air blowing means from the through hole in which the punching metal is stretched. By returning to the inside,
The air blown into the booth from the first air blowing means and the second air blowing means is configured not to escape from the doorway to the outside .

In the air shower apparatus of Claim 2 , the said shower unit is equipped with the wheel which can roll on a lower surface, and is attached or detached from the said shower unit storage part by attachment or detachment with respect to the shower unit storage part, The inside of the said booth part In the air shower apparatus according to claim 3 , means for discharging a part of the clean air that has passed through the HEPA filter from the front space of the shower unit to the outside of the shower unit storage portion is provided. provided and, in the air shower apparatus according to claim 4, in the booth part, with a human sensing means for sensing that a person enters, the person sensing means, sensor with a hot wire sensor or a photoelectric sensor, or It is a foot switch provided with a piezoelectric element sensor.

According to the air shower apparatus of the first to fifth aspects of the present invention, the following various excellent effects can be obtained.
I) The air blown into the booth from the second air blowing means constitutes an air curtain and encloses the air blown from the first air blowing means. It is not discharged to the outside.
II) Since the air accompanied by the particulate matter is completely cleaned by the air cleaning means, the contaminated air after the air shower is not discharged to the outside.
III) Since the air curtain is formed by the air at the entrance / exit of the booth, there is no possibility that the particulate matter will be scattered outside without providing a door, and there is no need to provide a knob or the like because the door is unnecessary. Therefore, contamination due to contact with the knob or the like does not occur.
IV) Since the door is unnecessary, the person who enters the booth does not feel blocked.
V) Since the inside of the booth part can be kept at a negative pressure by discharging a part of the air from the shower unit storage part to the outside, the outside air flows into the booth part from the outside. Leakage can be prevented more reliably.
VI) Since the shower unit is detachable and has wheels, the shower unit can be easily moved, and maintenance and inspection of each device of the shower unit can be easily performed.
VII) There is no possibility that the particulate matter is scattered outside the booth without providing a door.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
1 to 7 are examples of embodiments for carrying out the present invention.
In the figure, reference numeral 1 denotes an air shower device, which includes a booth unit 1a where a person enters for an air shower, and a shower unit storage unit 1b that can store a shower unit 3 equipped with devices to be described later. . The booth portion 1a is formed of a material such as a transparent resin so that it can be seen through from the outside, and the shower unit storage portion 1b is formed of a material such as an opaque resin or metal.

  The booth portion 1a has three side surfaces, and an entrance / exit 2 formed in an arc shape is formed on one side surface in order to improve the appearance of both upper end portions. The shower unit storage portion 1b has four side surfaces and a ceiling surface, and is integrally connected to one end portion in the front-rear direction of the booth portion 1a. The ceiling surface of the shower unit storage portion 1b is on the upper surface side of the booth portion 1a. It extends to form the ceiling surface of the booth part 1a.

  Thus, the corner portion at the end of the booth portion 1a opposite to the shower unit storage portion 1b connection side is formed in an arc shape having a predetermined radius of curvature in plan view. The radius of curvature R inside the arcuate portion is about R = W / 5 to W / 2, where W is the inner width of the booth portion 1a.

  The shower unit 3 housed in the shower unit housing portion 1b is provided with a movable frame 5 having a free wheel 4 at the lower end, and the internal space of the frame 5 is partitioned by a partition plate, A narrow lower space 5a, an upper space 5b positioned above the lower space 5a and having a length in the vertical direction longer than the lower space 5a, and a front space 5c positioned closer to the booth portion 1a than the lower space 5a and the upper space 5b Have. A blower fan 6 is housed in the lower space 5 a of the frame 5, and a pre-filter 7 having an air suction port 7 a on the upper surface is connected to the side of the lower space 5 a of the frame 5. The air that has passed through the prefilter 7 is introduced into the lower space 5 a of the frame 5 and is sucked into the blower fan 6.

  The air sent from the blower fan 6 is introduced into the upper space 5b of the frame body 5, and a HEPA filter 8 is provided on the side facing the front space 5c in the upper space 5b. It has been. The partition plate 9 that divides the front space 5c of the frame 5 on the booth portion 1a side is formed to have a width and height substantially the same as the inner width of the shower unit storage portion 1b, and the shower unit 3 is connected to the shower unit storage portion 1b. When housed inside, the partition plate 9 can be fixed to the shower unit housing portion 1b with bolts and nuts. That is, the partition plate 9 is also a part of the shower unit storage portion 1b and has a function of partitioning the shower unit storage portion 1b and the booth portion 1a.

  A plurality of shower nozzles 10 are vertically attached to the partition plate 9 at predetermined intervals so that the air cleaned by the HEPA filter 8 can be blown into the booth portion 1a. The air blown into 1a can shower people and remove particulate matter such as pollen and dust. Further, a human sensor 11 such as a heat ray sensor or a photoelectric sensor is attached to a required position of the partition plate 9. The other human sensor 18 may be a foot switch in which a piezoelectric element sensor is provided on a rubber plate having a diameter of about 500 mm and a thickness of about 5 to 10 mm laid on the floor surface in the booth portion 1a.

  The side surface opposite to the side where the pre-filter 7 is provided in the width direction of the frame body 5 is connected to the upper and lower portions of the front space 5c of the frame body 5 and extends horizontally in a direction away from the frame body 5. A conduit 12 is connected to the conduit 12, and a vertical header tube 13 having a height corresponding to the length from a person's foot to the top of the head is connected to the conduit 12. Further, a slit 14 is formed in the header plate 13 on the side facing the partition plate 9 and on the partition plate 9 over almost the entire height, and the air blown into the booth portion 1a from the slit 14 flows into the booth portion 1a. An air curtain can be formed in the entrance / exit 2 of the booth part 1a along the inner surface.

  On the side where the pre-filter 7 in the width direction of the partition plate 9 is provided, it has a predetermined width and height from the foot of the person to above the head so that the air from the booth 1a can be introduced into the shower unit storage 1b. A punching metal 15 is attached to the through hole. Thus, the shower air and the air curtain air flowing through the booth 1a can be introduced from the booth 1a into the shower unit storage 1b through the holes of the punching metal 15. .

  As shown in FIGS. 6 and 7, an exhaust pipe 16 for exhausting a part of the air to the outside is provided on the side of the header pipe 13 opposite to the conduit 12 connection side, that is, on the outer side in the width direction. In addition, a mounting member 17 extending vertically is fixed to the inner wall surface in the vicinity of the end of the shower unit storage portion 1b on the booth portion 1a side, and the frame body 5 of the shower unit 3, the blower fan 6, the conduit 12, The partition plate 9 with the header pipe 13, the exhaust pipe 16, the shower nozzle 10 and the punching metal 15 attached thereto can be integrally attached to and detached from the attachment member 17. In the figure, 19 is a damper for adjusting the air flow rate.

Next, the operation of the above-described embodiment will be described.
The person P taking an air shower enters the booth part 1a from the entrance / exit 2 of the booth part 1a in the shower unit 3. Then, the person detection sensor 11 or 18 detects that the person P is in the booth part 1a, and the blower fan 6 is driven. When the blower fan 6 is driven, the air is pressurized and discharged by the blower fan 6, supplied to the upper space 5 b of the frame body 5, cleaned through the HEPA filter 8, and before the frame body 5. Part of the air is introduced into the partial space 5c, is sent from the upper space 5b to the header pipe 13 via the conduit 12, and is sent from the header pipe 13 through the slit 14 to the vicinity of the inner wall of the booth part 1a. It flows along the inner wall portion, forms an air curtain at the entrance 2 and smoothly flows along the arc-shaped portion to the tip portion, the arc-shaped portion and the inner peripheral wall, and is introduced into the shower unit storage portion 1b from the hole of the punching metal 15. The

  On the other hand, the remaining air in the upper space 5b is blown out as a jet stream from the shower nozzle 10 into the booth part 1a and is showered by the person P in the booth part 1a. For this reason, particulate matter such as pollen and dust adhering to a person's clothes and the like is removed, entrained by the air, flows in the booth part 1a, and enters the shower unit storage part 1b from the hole of the punching metal 15. be introduced.

  The air constituting the air curtain introduced into the shower unit storage portion 1b and the air that has been supplied to the air shower and accompanied by the particulate matter are introduced together into the prefilter 7, and relatively large foreign matter is removed by the prefilter 7. It is removed and sucked by the blower fan 6, pressurized and discharged by the blower fan 6, and again supplied to the air curtain or shower through the aforementioned path.

  When maintaining and inspecting each device of the shower unit 3, the worker who entered the booth 1a removes the bolts (not shown) that fasten the partition plate 9 to the mounting member 17, Work is performed after the shower unit 3 is moved as shown in FIG.

  According to the illustrated example, the air constituting the air curtain flowing along the inner peripheral wall of the booth portion 1a encloses the air blown into the booth portion 1a from the shower nozzle 10 and is therefore accompanied by particulate matter by the air shower. Air is not discharged outside.

  Further, in the illustrated example, air is circulated, relatively large foreign matters are removed by the pre-filter 7 and completely cleaned by the HEPA filter 8, so that the contaminated air after the air shower is not discharged to the outside. In addition, since the air curtain is formed by air, it is not affected by cold or heat without providing a door, and the door is unnecessary, so that the person in the booth part 1a is not obstructed. Since there is no door knob or the like, contamination due to contact with the knob does not occur.

Furthermore, since a part of the air in the header pipe 13 is discharged to the outside, the space part enclosed by the air curtain in the booth part 1a can be maintained at a negative pressure, so that outside air flows into the booth part 1a from the outside. As a result, it is possible to more reliably prevent the showered air from leaking to the outside.
Furthermore, maintenance and inspection of each device of the shower unit 3 can be easily performed.

  In addition, the air shower apparatus of this invention is not limited to above-described embodiment, Of course, various changes can be added within the range which does not deviate from the summary of this invention.

It is a whole perspective view which shows an example of embodiment of the air shower apparatus of this invention. It is a side view of the air shower apparatus shown in FIG. It is a III-III direction arrow directional view of FIG. It is the IV-IV direction arrow directional view of FIG. It is a VV direction arrow line view of FIG. It is an expansion plane sectional view of the air shower apparatus of the present invention. It is a top view which shows the state of the shower unit at the time of maintaining and checking each apparatus of a shower unit. It is a top view of an example of the conventional air shower apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air shower apparatus 1a Booth part 1b Shower unit storage part 3 Shower unit 4 Swivel wheel (wheel)
6 Blower fan (Blower unit)
8 HEPA filter (air cleaning means)
10 Shower nozzle (first air blowing means)
11 Human detection sensor (person detection means)
14 Slit (second air blowing means)
15 Punching metal (Air intake means)
16 Exhaust pipe (means for discharging outside)
18 Person detection sensor (person detection means)
R Curvature radius

Claims (4)

Accommodates a shower unit that forms a space for a person to enter for an air shower and has an opening / closing opening that does not have a door, and has four side surfaces and a ceiling surface, and is integrally connected to the booth unit. In an air shower device comprising a shower unit storage section
An arc-shaped portion having a predetermined radius of curvature is formed at the corner portion of the side wall of the booth portion opposite to the side where the removable partition plate that partitions the shower unit storage portion is present,
The shower unit is
One side of the frame body that is a casing is integrally connected to the partition plate ,
In the partition plate,
A slit extending over almost the entire height on the entrance / exit side, a through hole with a punching metal extending from the foot of the person to the upper part of the head on the side facing the entrance / exit of the booth part, and between the slit and the through hole A blower nozzle that is a first air blowing means for blowing the purified air into the booth,
The shower unit is
When housed in the shower unit housing part, the frame located on the side facing the booth part on the back side of the partition plate has an air suction port for sucking air through a prefilter,
In the frame,
A blowing means, a HEPA filter on the discharge side of the blowing means, and a front space on the booth side of the HEPA filter,
The front space is
The second air including the first air blowing means and the slit which is connected to the slit through a vertical header pipe and blows a part of the purified air along the inner wall surface of the booth part. Contact with the air blowing means,
The air blown into the booth from the second air blowing means is
A shower unit that flows along the inner wall surface of the booth part and forms an air curtain at the entrance and exits the air blown from the first air blowing means and the second air blowing means from the through hole in which the punching metal is stretched. By returning to the inside,
An air shower apparatus characterized in that the air blown into the booth from the first air blowing means and the second air blowing means is not escaped from the entrance / exit . The shower unit includes a rollable wheel on a lower surface, and is configured to be detachable from the shower unit storage portion and to be maintained in the booth portion by attaching and detaching the partition plate to and from the shower unit storage portion. Item 2. An air shower device according to Item 1. The air shower apparatus according to claim 1, further comprising means for discharging a part of the clean air that has passed through the HEPA filter from the front space of the shower unit to the outside of the shower unit housing. 2. The booth unit is provided with human sensing means for sensing that a person has entered, and the human sensing means is a sensor provided with a heat ray sensor or a photoelectric sensor, or a foot switch provided with a piezoelectric element sensor. The air shower apparatus in any one of thru | or 3.

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