JP2000346419A - Air shower booth - Google Patents

Abstract

PROBLEM TO BE SOLVED: To apply to the case of installing at a position need to clean a floor by washing with a simple structure by forming a clean room of a blower unit, a ceiling member and a resin curtain. SOLUTION: A person who enters a CR room turns over a curtain 48 of a side face 44 side of a clean room from a front room, and enters the room. Then, a jet air operation button 60 provided on a wall of a casing is pressed to operate a blower unit 20. A Sirocco fan sucks the air in the room from a suction port by this operation to uniformly pressurize the air, to further clean the air, to diffuse as a jet air flow for a predetermined time, thereby removing dusts adhered to an entering person's clothing. The clean air diffused into the room is exhausted together with the dusts from a floor side of curtains 46, 48 into the front room. After the jet air flow is stopped, the person turns over the curtain 49 of the CR room side, then enters the CR room. Then, the CR room is not contaminated by the dusts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clean room for semiconductors, an operating room of a hospital, a facility related to food and biotechnology, and the like. The present invention relates to an air shower booth for cleaning with jet air, and more particularly to an air shower booth suitable for a food factory in which an installation place needs to be cleaned with water.

[0002]

2. Description of the Related Art Conventionally, in places such as semiconductor clean rooms, hospital operating rooms, facilities related to food and biotechnology, and the like, articles such as occupants and products need to be cleaned with jet air. An air shower is used as a cleaning device.

[0003] However, in a normal air shower, a blowing unit having the same structure or a unit that does not blow air is disposed at a position facing a blowing unit including a fan, a filter, and an air outlet. A structure is adopted in which each unit is arranged and a door is provided at an entrance that connects the clean room and the front room.

[0004] In the above-described conventional air shower, a floor unit is also installed on the floor surface. Therefore, in a place where the installed floor surface needs to be cleaned by washing with water, such as a food factory. Not suitable. In addition, there is also a problem that the opening and closing of the door is troublesome because people enter and exit and carry in and carry out articles frequently. Furthermore, when installing at an existing entrance, it is necessary to remove the existing door, which not only increases the construction cost, but also has a problem that the removed door becomes waste.

[0005]

SUMMARY OF THE INVENTION The present invention has a simple structure and can be applied to a case where the floor surface is required to be cleaned by washing with water. This is to solve the problem.

[0006]

That is, in order to achieve the above object, an air shower booth of the present invention has a fan and a filter installed in a casing, and further has an outlet having a jet nozzle on an inner wall surface of the casing. A ceiling member is joined to the inner wall surface side of the blower unit formed by providing a resin curtain from the ceiling member on each surface other than the inner wall surface of the blower unit, and the blower unit, A clean room is formed by the ceiling member and the resin curtain. Claim 2
The described air shower booth has a fan,
A filter is installed, and further, the inner wall sides of two blowing units formed by providing an outlet having a jet nozzle on the inner wall surface of the casing are installed facing each other,
A ceiling member is joined and erected between the upper portions of the two blower units, and a resin curtain is hung from the ceiling member on each surface other than the inner wall surface of the blower unit, and the blower unit, the ceiling member, A clean room is formed by a resin curtain. An air shower booth according to a third aspect is the air shower booth according to the first or second aspect, wherein the ceiling member is a frame. An air shower booth according to a fourth aspect is the air shower booth according to any one of the first to third aspects, wherein surfaces of the resin curtain hanging from the ceiling member are respectively opposed to the clean room and the front room. Is provided with an entrance. According to a fifth aspect of the present invention, in the air shower booth according to any one of the first to fourth aspects, a weight is provided at a lower end portion and a side end portion of the resin curtain hanging from the ceiling member. It is characterized by. An air shower booth according to a sixth aspect is characterized in that the member covering the ceiling portion is transparent or translucent.

Since the present invention is constructed as described above, it is called a clean room (hereinafter referred to as a CR room).
Installed between the R room and the front room connected to the R room, drive the fan of the blower unit to guide the air in the clean room from the suction port into the blower unit through the pre-filter, and pressurize the pressure uniformly by the pressure chamber. After cleaning by a filter, the purified air is jetted into a clean room from a jet nozzle provided at an outlet to clean people and articles in the clean room.

[0008] In this case, the present invention is characterized in that the unique floor surface of the clean room is eliminated, whereby the floor surface can be easily cleaned by washing with water. Further, the number of metal parts can be reduced, and the columns of the clean room can be eliminated, so that the weight can be reduced. Further, by making the resin curtain detachable, the curtain can be easily cleaned and replaced. Also,
By forming the member covering the ceiling portion from a transparent or translucent material, the lighting of the room where the air shower booth is installed can be used for the lighting of the clean room, so that the light source in the clean room becomes unnecessary. .

[0009]

Embodiments of the present invention will be described below. FIG. 1 is a plan view showing an embodiment of the air shower booth of the present invention, FIG. 2 is a vertical sectional front view taken along line AA of FIG. 1, FIG. 3 is a perspective view, FIG. 6 and 7 are perspective views each showing another embodiment of the present invention.

As shown in FIG. 1, the air shower booth of the present invention is provided on a passage d side of a front room b at a position of a door c provided between a CR room a and a front room b. As shown in FIGS. 1 to 6, the clean room 10 includes the blowing units 20 and 80 and the ceiling member 3 joined to the blowing unit 20.
And a curtain 40 made of resin such as vinyl hanging from the ceiling member 30.

A sirocco fan 1 is provided below the casing 4 constituting the blower unit 20, a pressure chamber 3 is provided above the sirocco fan 1, and a HEPA filter 2 is provided in front of the pressure chamber 3. In addition, a plurality of outlets 5 with jet nozzles 6 are provided on the inner wall surface of the casing 4, a suction port 7 is provided below the outlet 5, and a pre-filter 8 is mounted behind the suction port 7. Further, the casing 4 is provided on the floor surface e of the front room b.
It is fixed to the floor surface e with anchor bolts (not shown) so as to stand upright.

The ceiling member 30 is formed of a frame and is joined to an upper portion of an inner wall surface of the blower unit 20. Further, the ceiling member 30 is
And the ceiling member 30 is covered with a single slitless resin curtain 46 extending to the facing portion 42 of the blower unit 20. Further, on each of the side surfaces 43 and 44 facing the CR room a and the front room b, a plurality of resin curtain pieces 47 each having a width of, for example, 100 mm are alternately stacked from the ceiling member 30 and fixed at the upper portion. Resin curtains 48, 48 are provided to allow articles and the like to enter and exit. As shown in the exploded perspective view of FIG. 4, the resin curtain 46 is fixed with a double-sided tape 49 on the inside of the joint with the blower unit 20 and the double-sided tape with the inside of the joint with the ceiling member 30. It was fixed at 50.
Further, the inside of the mating portion between the resin curtains 48, 48 and the ceiling member 30 is fixed with a double-sided adhesive tape 50,
The resin curtain 4 in contact with the blowing unit 20
The inside of the mating portion between the blowers 8 and 48 and the blower unit 20 is fixed with double-sided adhesive tape 51, and the resin curtain 46 is fixed.
The inside of the mating portion between the resin curtains 48, 48 and the resin curtain 46 in contact with the
2 to prevent air leakage from each of the abutting portions. Further, a weight 45 such as a chain is attached to the lower end of the resin curtains 46 and 48 on the floor side so that the curtains 46 and 48 do not move or bend by the wind due to their own weight. In addition, since the weight 45 becomes a core when winding up the curtain, the winding-up operation becomes easy.

Next, the operation of the embodiment of the present invention shown in FIGS. 1 to 4 will be described. The person who enters the CR room a is the front room b
Turn the curtain 48 on the side surface 44 side of the clean room 10 from
Enter the room 11. Then, the jet air operation button 60 provided on the wall surface of the casing 4 is pressed to operate the blower unit 20. By this operation, the sirocco fan 1 sucks the air in the room 11 from the suction port 7 through the pre-filter 8, and the air is uniformly pressurized by the pressure chamber 3, and is further purified by passing through the HEPA filter 2.
Dust that is blown out as a jet stream from the jet nozzle 6 of the outlet 5 of the casing 4 for a certain period of time and adheres to the clothes of the occupant is removed. The clean air blown into the room 11 together with the dust, the curtain 46 constituting the clean room 10
And 48 are discharged into the front room b from the floor side. Further, a part thereof is taken into the blower unit 20 from the suction port 7 and is used for circulation. After stopping the jet stream,
If the entrant turns the curtain 48 on the CR room a side and opens the door c to enter the CR room a, the inside of the CR room a will not be contaminated by dust or the like.

In the above embodiment, the CR room a
Has been described in the case where the door c is provided, but the door c is removed,
Only the door-side curtain 48 may be installed. In the above description, the case where the jet air operation button 60 is manually operated has been described. However, the present invention is not limited to the manual operation, and for example, an infrared sensor or the like is installed in the clean room 10. Then, the configuration may be such that the entry is detected and the blowing unit 20 is automatically operated. Further, it is also possible to install a hand shower device in the clean room 10 and to operate the hand shower device simultaneously with the supply of the jet stream. Further, when the temperature of the room 11 is low, a warm air facility such as a heater may be added to the blower unit 20.

FIG. 5 shows another embodiment of the present invention. In this embodiment, the ceiling is replaced by a plate-shaped member 70 instead of a resin curtain, but the operation and operation are the same as those of the above-described embodiment. With the configuration as in this embodiment, the strength of the ceiling increases. However, in the case of this embodiment, as in the above-described embodiment, it becomes impossible to illuminate from the ceiling portion, so that it is necessary to provide lighting in the room 11 of the clean room 10.

FIG. 6 shows still another embodiment of the present invention. In this embodiment, in addition to the blower unit 20, a blower unit 80 is installed to face the blower unit 20. With this configuration, the operation of the jet air operation button 60 causes the operation of the two air blowing units 20.
And 80 operate, the supply amount of the clean air to the room 11 is doubled, and therefore, the cleaning ability by the jet stream is improved, and the simultaneous use of many people is possible. In addition, when using alone, shortening the jet airflow time,
Sufficient dust removal becomes possible.

According to the present invention, the curtains 46 and 48 can be rolled up or removed in any of the above-described embodiments.
The work is easy because only the curtains 46 and 48 need to be rolled up or removed. Further, since no floor surface is provided in the clean room 10, the cleaning operation by washing with water can be easily performed. Further, the curtain can be easily replaced. Also, by pulling the weights at both corners at the lower end of the curtain without slits provided on the facing portion of the blower unit outward and fixing them to fasteners driven into the floor, the curtain does not move with jet air and functions as a side plate. Can be demonstrated. The same function as described above can be obtained by applying a load to the weight at the lower end of the curtain having no slit provided on the facing portion of the blower unit, or by attaching a weight to the side end in addition to the lower end of the curtain.

[0018]

As described above, in the air shower booth of the present invention, since the clean room does not have a specific floor surface, the floor surface can be easily cleaned by washing with water. Also,
During the cleaning operation, the curtain can be rolled up or removed, so that the cleaning operation is easy. Moreover, since the curtain is provided with a weight at the lower edge thereof, it is possible to prevent the curtain from moving or being bent by the wind. Further, when winding the curtain, since the weight becomes the winding core, the winding operation of the curtain can be easily performed. In addition, since the door on the CR room side can be omitted, not only can the person enter and exit, or carry in and carry out the article easily, but also the space for opening and closing the door becomes unnecessary, and the opening and closing direction of the door is also eliminated. It is extremely convenient without having to pay attention to Further, when the ceiling member is formed of a transparent or translucent member, there is no need to install lighting in a clean room. Moreover,
Since the ceiling member is formed by a frame and the curtain is hung from the ceiling member to form a clean room, there is no need to install columns, and thus the structure can be simplified.
Further, since the use of the metal part is small, the weight can be reduced and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of an air shower booth of the present invention.

FIG. 2 is a vertical sectional front view taken along line AA of FIG. 1;

FIG. 3 is a perspective view of the air shower booth of the present invention.

FIG. 4 is an exploded perspective view showing the configuration of the air shower booth of the present invention.

FIG. 5 is a perspective view showing another embodiment of the present invention.

FIG. 6 is a perspective view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sirocco fan 2 HEPA filter 3 Pressure chamber 4 Casing 5 Outlet 6 Jet nozzle 7 Suction port 8 Prefilter 10 Clean room 11 Room 20 Blowing unit 30 Ceiling member 40 Resin curtain 41 Ceiling part 42 Facing part 43 Side part 44 Side part 46 Curtain 47 Curtain piece 48 Curtain 49 Double-sided adhesive tape 50 Double-sided adhesive tape 51 Double-sided adhesive tape 52 Double-sided adhesive tape 60 Operation button 70 Plate member 80 Blowing unit a CR room b Front room c Door d Passage e Floor surface

Claims (6)

[Claims] 1. A ceiling member is joined to an inner wall surface side of a blower unit formed by installing a fan and a filter in a casing and further providing an outlet having a jet nozzle on an inner wall surface of the casing. An air shower, wherein a resin curtain is hung from the ceiling member on each surface other than the inner wall surface of the blower unit, and a clean room is formed by the blower unit, the ceiling member, and the resin curtain. booth. 2. A fan and a filter are installed in a casing, and two air blowing units formed by providing an outlet having a jet nozzle on an inner wall surface of the casing are installed so that the inner wall sides thereof face each other. Further, a ceiling member is joined and erected between the upper portions of the two blower units, and a resin curtain is hung from the ceiling member on each surface other than the inner wall surface of the blower unit, and the blower unit, the ceiling member, An air shower booth, wherein a clean room is formed by the resin curtain. 3. The air shower booth according to claim 1, wherein the ceiling member is a frame. 4. The resin curtain hanging from a ceiling member, wherein an entrance is provided on a surface facing each of the clean room and the front room, according to any one of claims 1 to 3. Air shower booth. 5. The air shower booth according to claim 1, wherein a weight is provided at a lower end portion and a side end portion of the resin curtain suspended from the ceiling member. 6. The air shower booth according to claim 1, wherein the member covering the ceiling portion is transparent or translucent.