JP2008029997A - Air shower device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air shower device which can be easily installed by restricting no installation locations, move because of its light weight, and stably supply high-speed jet air. <P>SOLUTION: The air shower device 1 is composed of a blast unit 10 and a blowing unit 20 which are independently structured. The blast unit 10 is mounted on the blowing unit 20, and the units are connected by a connecting means 30 to assemble the air shower device 1. The blast unit 10 has an air pressure chamber 13 formed by a casing 15, and a plurality of air blast openings 11 installed in the front face of the air pressure chamber 13 for blasting air from the blast unit 10 to the outside. The blowing unit 20 contains a fan 23, a prefilter 21, and a high-performance filter 22 in a casing 28. Moving means 12, 24, such as casters, may be installed on the blast unit 10 and the blowing unit 20 respectively. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air shower device used for removing harmful dust such as asbestos dust and dioxin contaminant dust that adheres to a worker's clothes and portable items during work.

  Conventionally, at the site of demolition of buildings using asbestos or the work site for removing dioxin contaminants from large incinerators, air showers have been installed at the entrances and exits where workers enter and exit the site, and the space is partitioned. It is known to remove harmful dust such as asbestos dust adhering to the body and dust of dioxin pollutants by bathing with jet air when going out of the field.

As an air shower device that removes harmful dust such as asbestos dust and dioxin pollutant dust, it has a machine room body and shower room, and air shower that blows clean air purified in the machine room body into the shower room The machine room body is divided into a lower unit and an upper unit, and is detachably formed. An air filter is provided in the lower unit, and a fan is provided in the upper unit corresponding to the air filter. (For example, refer to FIG. 1 of Patent Document 1).
Another air shower device includes an air shower room and a filter / blower unit connected to the air shower room via an air supply duct and an exhaust duct (for example, see Patent Document 2). (See FIG. 1). The air shower device of Patent Document 2 is formed of a canopy supported by an extendable strut, a lower part of the canopy, and a non-breathable sheet, and is restricted from expanding beyond a predetermined thickness. An air layer wall in which air is fed into the air chamber, a plurality of nozzles that are disposed on the inner wall of the air layer wall and eject an air shower into the shower room, and a lower end of the air layer wall It consists of a connected exhaust stage. And this air shower apparatus is comprised so that an air shower room may be assembled by sending air to an air layer wall and a shower room through an air supply duct with a blower, and it may be folded by extracting air from an air layer wall.

Japanese Utility Model Publication No. 2-6934 Japanese Utility Model Publication No. 2-9740

However, in the air shower device described in FIG. 1 of Patent Document 1, the blowout unit and the blower unit that constitute the machine room are separated and independent, and can be assembled with a one-touch patch lock. In order to form a shower room, ceiling ducts, side ducts, bottom ducts, both doors, etc. are required in addition to the machine room, so the installation location is restricted and the air shower device cannot be installed easily. In order to move, a separate moving means such as a carriage is necessary.
Here, the air shower device described in FIG. 1 of Patent Document 2 has casters attached to each of the air shower room and the filter / blower unit, and can be freely moved by folding the air shower room. Since the shower room is composed of a non-breathable sheet, it is lightweight and the installation location is not restricted, and the problem of Patent Document 1 described above is solved.
However, in the air shower device described in Patent Document 2, the air layer wall having the nozzle that blows out jet air is a bag made of a non-breathable sheet. There is a possibility that a problem arises that the airtightness is lowered and the air pressure cannot be sufficiently increased.
In addition, harmful dust adhered from the operator's head to the knee accumulates harmful dust that has been swept away under high-speed jet air, and there is a risk of recontamination (reattachment). There is. This air shower apparatus is configured to collect harmful dust collected in the vicinity of the floor with an exhaust duct, but it cannot be said that a countermeasure against recontamination is sufficient.
Further, in the air shower device described in Patent Document 2, since the air shower blows out from the bag made of a non-breathable sheet, the air shower has a short air reaching distance and high pressure loss compared to a pan-carver or the like. There is a problem of inefficiency.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an air shower device that can be easily installed without being restricted in installation location, and is movable because it is lightweight, and can stably supply high-speed jet air. .

In order to achieve the above object, an air shower apparatus according to the present invention is composed of a blowout unit and a blower unit, which are independent structures, respectively, and the blowout unit is placed on the blower unit. And an air shower device that is assembled by being coupled by a coupling means,
The blowout unit has an air pressure chamber formed of a casing, and a plurality of air blowout ports provided on the front surface of the air pressure chamber for blowing air outward from the blowout unit. Is characterized in that a fan and a filter are built in the casing.
The air shower device according to claim 2 is characterized in that, in the air shower device according to claim 1, the blowing unit and the air blowing unit are provided with moving means, respectively.
Moreover, the air shower apparatus of Claim 3 is an air shower apparatus of Claim 1 or 2, The front surface in which the said air blower outlet of the said blowing unit was provided is a floor surface directly without the said ventilation unit. It is installed in.
Moreover, the air shower apparatus of Claim 4 is an air shower apparatus in any one of Claim 1 thru | or 3. WHEREIN: The said blowing unit protrudes in the at least one side of the upper surface side and lower surface side from the said air pressure chamber. And a flexible air duct is provided, and an air outlet is installed at the tip of the flexible duct.

Since the air shower apparatus of this invention is comprised by the minimum unit of a ventilation unit and a blowing unit as described in Claim 1, it is lightweight and an installation place is not restrict | limited. Moreover, since it was set as the structure which connects a ventilation unit and a blowing unit with a connection means (for example, a patchon lock or a catch clip), disassembly and assembly can be made easy. Furthermore, since the blowout unit is mounted on the blower unit and the filter and the fan are provided in the casing of the blower unit, the entire air shower device is used when transporting the blowout unit and the blower unit without separation. The center of gravity becomes lower, and the risk of falling can be sufficiently reduced. In addition, since the blowout unit has the air pressure chamber formed of a casing, there is no possibility of a decrease in airtightness due to repeated use, and high-speed jet air can be supplied stably.
Moreover, in the air shower apparatus of Claim 2, since the moving means (for example, caster) is provided in each of the ventilation unit and the blowing unit, it can be separated and reduced in weight per unit and easily transported. it can. Even when the moving unit (for example, a caster) is provided in the blowing unit in this way, when the blowing unit is placed on the blowing unit, the moving unit (the caster) of the blowing unit is blown. What is necessary is just to set it as the structure accommodated in a unit upper part (for example, plenum part).
Moreover, in the air shower apparatus of Claim 3, since the front surface in which the air blower outlet of the blower unit was provided was directly installed in the floor surface, an air blower outlet can be installed also in a low position, and an operator's High-speed jet air can be blown to the feet. Therefore, for example, harmful dust such as asbestos dust and dioxin pollutant dust can be removed from the operator's feet, and the risk that the fallen harmful dust will be recontaminated due to reattachment to the body is reduced. can do.
Moreover, since the air shower apparatus is provided with the flexible duct extended from the blowing unit as described in Claim 4, the air blower outlet arrange | positioned at the front-end | tip of a flexible duct (for example, Panka Lover) ) If the direction of the air is tilted downward and the foot is directed downward, there is no dead space between the operator's feet and the air shower device, and no clean air is blown over the entire body of the worker. Can do.

Hereinafter, preferred embodiments of an air shower device of the present invention will be described in detail with reference to the accompanying drawings.
(First embodiment)
First, the structure of the air shower apparatus in 1st Embodiment of this invention is demonstrated. FIG. 1 is a front view (FIG. 1A) and a side view (FIG. 1B) of an air shower device according to a first embodiment of the present invention, and FIG. 2 is a view of the air shower device shown in FIG. FIG. 2 is an exploded front view (FIG. 2A) and an exploded side view (FIG. 2B).
As shown in FIGS. 1 and 2, the air shower apparatus 1 according to the first embodiment of the present invention includes a blowout unit 10 and a blower unit 20, and the blowout unit 10 is placed on the blower unit 20. The blowing unit 10 and the blower unit 20 are assembled by being connected by a catch clip (connecting means) 30.
The blow-out unit 10 includes an air pressure chamber 13 formed of a casing 15, a plurality of pan-car louvers (air blowout ports) 11 that are provided on the front surface of the air pressure chamber 13 and blow out air outward from the blow-out unit 10. It has. In addition, the bottom surface of the blowout unit 10 has an opening (not shown) formed by the casing 15. In the present embodiment, the pan karlours 11 are provided on the front surface of the blowing unit 10 in a total of eight rows of 3, 2, 3 rows.
Further, the blowout unit 10 further includes four casters (moving means) 12 on the bottom surface and two trunk handles 14 on each side surface for use in movement, assembly, and the like. The numbers of casters 12 and trunk handles 14 are not limited to these and may be set as appropriate.
The blower unit 20 includes a high-performance filter 22, a fan 23, and a control box 26 including a differential pressure gauge 25 a, an ON / OFF switch 25 b, and an inverter 25 in a casing 28. The blower unit 20 includes a prefilter 21 on one side surface thereof, and the fan 23 blows air taken in via the prefilter 21 and the high-performance filter 22.
The blower unit 20 has an upper portion of the fan 23 and has a plenum portion 27 on a side portion of the control box 26, and an upper portion of the plenum portion 27 is not shown corresponding to the opening of the blowing unit 10 described above. Has an opening. Thereby, the air blown out from the fan 23 is guided to the air pressure chamber 13 of the blowing unit 10 placed on the upper portion through the plenum portion 27 and the opening. The blower unit 20 also includes a moving caster (moving means) 24.

Next, the usage method and movement method of the air shower apparatus 1 of this embodiment are demonstrated.
The air shower apparatus 1 of this embodiment is installed in the entrance / exit of a field. And the air shower apparatus 1 operates the fan 23, removes the coarse thing of the contaminated air containing harmful dusts, such as an asbestos, on the spot through the pre-filter 21 provided in the side surface of the ventilation unit 20, and next, high The clean air highly purified by the performance filter 22 is supplied to the air pressure chamber 13 of the blowing unit 10 through the opening of the fan 23, the plenum part 27, the blower unit 20 and the blowing unit 10, so The high-speed jet air is blown out from 11, and harmful dust attached to the worker is removed.
When the air shower device 1 is transported and moved, the fan 23 and the like are disposed below the air shower device 1 and have a low center of gravity, so the state is kept as it is using the casters 24 of the blower unit 20 (FIG. 1). It is also possible to move in the state shown in FIG. Unlike that, since the air shower device 1 can be easily separated and assembled, the catch clips 30 provided on the front and back surfaces of the air shower device 1 are removed, and the blowing unit 10 and the blower unit 20 are separated. You may convey separately using the casters 12 and 24. FIG. If it is such a conveyance method, each member can be reduced in weight and it has the merit that handling is easy. And after separating and carrying and moving, the blowing unit 10 is placed on the blowing unit 20, the caster 12 of the blowing unit 10 is accommodated in the plenum portion 27 of the blowing unit 20, and one-touch with the catch clip 30. Attach and fix with.
In the air shower apparatus 1 according to the first embodiment of the present invention, since the casters 12 of the blowout unit 10 are configured to be housed in the plenum part 27 of the blower unit 20, the plenum part 27 is provided in the blower unit 20, In the present invention, without being limited to this configuration, for example, as a structure in which the casters 12 can be folded, a plenum portion that houses the casters 12 may be provided on the lower surface of the blowing unit 10. Similarly, a plenum portion that houses the casters 24 may be provided on the lower surface of the blower unit 20.
As described above, since the air shower apparatus 1 according to the first embodiment of the present invention has the above-described configuration, not only the entire apparatus is lightweight and the installation place is not restricted, but also the disassembly and assembly are easily performed. You can also. Further, since the air pressure chamber 13 is constituted by the casing 15, there is no possibility of a decrease in airtightness due to repeated use, and high-speed jet air can be stably supplied.

(Second Embodiment)
Next, the structure of the air shower apparatus in 2nd Embodiment of this invention is demonstrated. 3 is a front view (FIG. 3 (a)) and a side view (FIG. 3 (b)) of an air shower device according to a second embodiment of the present invention, and FIG. 4 is a view of the air shower device shown in FIG. FIG. 4 is an exploded front view (FIG. 4A) and an exploded side view (FIG. 4B). In the second embodiment, the differences from the first embodiment will be mainly described, and the same components are denoted by the same reference numerals and the description thereof is omitted.
As shown in FIGS. 3 and 4, the air shower apparatus 2 according to the first embodiment of the present invention includes a blowout unit 40 and a blower unit 20, and draws the blower unit 20 from the lower back of the blowout unit 40. The blowout unit 40 and the blower unit 20 are connected and assembled by a catch clip (connecting means) 30 so as to be pulled out or to place the blowout unit 40 on the blower unit 20.
Unlike the blowing unit 10 of the air shower apparatus 1 of the first embodiment, the blowing unit 40 is provided with a total of eight bread culver (air blowing outlets) 41 in a vertical 4 × 2 row on its front surface. The front surface on which the louver 41 is provided is installed directly on the floor without the air blowing unit 20 being interposed. The opening of the blowing unit 40 is provided at a position corresponding to the opening provided on the upper surface of the blower unit 20.
As shown in FIGS. 3 (a) and 3 (b), the blowout unit 40 has two fixed moving casters (moving means) 45 and a predetermined position on the back side thereof (FIG. 4 (a). 2), two folding casters (not shown) are provided at a position overlapping the casters 45 in the depth direction of the drawing. The foldable caster is folded in the casing 44 when the blower unit 20 is mounted in the blowout unit 40.
Since the air shower device 2 according to the second embodiment has such a configuration, the pan karl bar 41 can be installed at a lower position than the air shower device 1 according to the first embodiment. High-speed jet air can be blown to the feet. Therefore, for example, harmful dust such as asbestos dust and dioxin pollutant dust can be removed from the operator's feet, and the risk of falling contaminated dust particles reattaching to the body is reduced. can do.
Moreover, in the air shower apparatus 2 of this 2nd Embodiment, since it has such a structure, the ventilation unit 20 can be made into the same structure as the ventilation unit 20 of 1st Embodiment.

(Third embodiment)
Next, the structure of the air shower apparatus in 3rd Embodiment of this invention is demonstrated. FIG. 5 is a front view (FIG. 5A) and a side view (FIG. 5B) of an air shower device according to a third embodiment of the present invention, and FIG. 6 is a view of the air shower device shown in FIG. FIG. 6 is an exploded front view (FIG. 6A) and an exploded side view (FIG. 6B). In the third embodiment, the difference from the first embodiment will be mainly described, and the same components are denoted by the same reference numerals and the description thereof is omitted.
As shown in FIGS. 5 and 6, the air shower device 3 according to the third embodiment of the present invention includes a blowout unit 50 and a blower unit 20, and the blowout unit 50 is placed on the blower unit 20. The blowing unit 50 and the blower unit 20 are assembled by being connected by a catch clip (connecting means) 30.
The blow-out unit 50 is provided with an air pressure chamber 53 formed of a casing 55, and three pan-car louvers (air blow-out ports) 52 that are provided in front of the air pressure chamber 53 and blow out air outward from the blow-out unit 50. And three flexible ducts 51 projecting from the air pressure chamber 53 to the upper surface side and the lower surface side, respectively. Further, a pan curver 52 similar to the pan curver 52 provided directly in the air pressure chamber 53 is installed at the tip of each flexible duct 51.
The blowout unit 50 is provided with a trunk handle 54 on each side surface for use in movement, assembly, and the like.
As described above, the air shower device 3 according to the third embodiment of the present invention includes the plurality of flexible ducts 51 that extend from the blowing unit 50 and have the pan curver (air blowing outlet) 52 at the tip. Therefore, when the air outlet 52 disposed at the tip of the flexible duct 51 is inclined toward the foot direction with an inclination, the air flows between the operator's foot and the air shower device 3. There is no dead space that does not reach and clean air can be blown over the entire body of the worker.
Moreover, also in the air shower apparatus 3 of the third embodiment, the blower unit 20 can have the same structure as the blower unit 20 of the first embodiment and the second embodiment.

As mentioned above, although the air shower apparatuses 1, 2, and 3 of this invention were demonstrated in detail with reference to the accompanying drawing, the air shower apparatus of this invention is not limited to the structure of the above-mentioned embodiment. For example, each component of the blowing units 10, 40, 50 and the blower unit 20 of each embodiment may be replaced with another component having the same function, and the air shower device 1 of each embodiment. Other components may be added to 2, 3.
Further, in each of the above-described embodiments, the case where eight pan-car rovers that are air outlets are provided has been described. However, in the present invention, the number of air outlets is not limited to this, and the fan capacity and the blowing wind speed are considered. And may be changed as appropriate.

  The air shower device of the present invention is mainly used to remove harmful dust such as asbestos dust and dioxin contaminants adhering to the clothes and portable items of the worker during work, It has industrial applicability also in that it can be used when it is not necessary to use it.

The front view and side view of the air shower apparatus in 1st Embodiment of this invention The exploded front view and exploded side view of the air shower apparatus shown in FIG. The front view and side view of the air shower apparatus in 2nd Embodiment of this invention The exploded front view and exploded side view of the air shower apparatus shown in FIG. The front view and side view of the air shower apparatus in 3rd Embodiment of this invention The exploded front view and exploded side view of the air shower apparatus shown in FIG.

Explanation of symbols

1, 2, 3 Air shower device 10, 40, 50 Blow unit 11, 41, 52 Pangkalu bar (air outlet)
12 Caster (moving means)
13, 53 Air pressure chamber 20 Blower unit 21 Pre-filter 22 High-performance filter 23 Fan 24 Caster (moving means)
27 Plenum part 30 Catch clip (connecting means)
45 casters (moving means)
51 Flexible duct

Claims (4)

An air shower device that is composed of a blowout unit and a blower unit, each of which is an independent structure, is mounted by mounting the blowout unit on the blower unit, and is connected and assembled by a connecting means,
The blowout unit has an air pressure chamber formed of a casing, and a plurality of air blowout ports provided on the front surface of the air pressure chamber for blowing air outward from the blowout unit. Is an air shower device in which a fan and a filter are built in a casing.   The air shower device according to claim 1, wherein the blowing unit and the air blowing unit are each provided with a moving means.   3. The air shower device according to claim 1, wherein a front surface of the blowout unit on which the air blowout port is provided is directly installed on a floor surface without passing through the blower unit. 4. The blowout unit includes a flexible duct extending from the air pressure chamber to at least one of an upper surface side and a lower surface side, and an air outlet is installed at a tip of the flexible duct. Item 4. The air shower device according to any one of Items 1 to 3.

Images