JP2014025617A - Air shower device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air shower device constructed to further reduce dust staying therein while solving such a problem on a conventional air shower device that, when sucking dust spread by air jet, stagnation points are produced in a clean room at positions where air-jet wind does not arrive and positions where an air flow hardly moves, and so the dust may not be efficiently removed.SOLUTION: On the whole of a side wall face of an air shower device, a whole-surface punched plate having punching holes is installed. By driving a fan motor to suck air, stagnation points in the air shower device are eliminated to reduce staying dust. An opening ratio of an upper part of the whole-surface punched plate is different from that of a lower part to adjust a suction amount so that the dust floating in the air shower device can be uniformly sucked, thus solving the problem.

Description

  The present invention relates to an air shower apparatus that removes dust using air pressurized by a fan or the like.

  An air shower device is installed at the entrance of a clean room or work room that manufactures semiconductors, precision machinery, etc., or manufactures and processes food, and is used as a passage or front room of the clean room and work room. It is a device to prevent the inflow / carrying-in.

  2. Description of the Related Art Conventionally, various air shower devices for blowing off attached dust with wind pressure or the like so that dust attached to a person or an object does not affect a work environment or the like have been disclosed. For example, Patent Literatures 1 to 5 disclose an air shower device that blows dust including pollen from an attached person or object by an air jet nozzle or the like and removes the dust by wind pressure. At this time, various configurations for sucking air in the dust removal chamber and removing the dust with a filter in order to prevent the reattachment of the dust are disclosed.

  For example, Patent Documents 1, 2, and 5 have a configuration in which a suction port is provided below the side wall of the dust removal chamber, the dust in the dust removal chamber is sucked in, the dust is removed by a filter, and the sucked air is blown out again toward the dust removal chamber. An air shower device is disclosed. Patent Documents 3 and 4 disclose an air shower device in which a suction port is provided on a floor surface.

  Patent Document 1 (Japanese Patent Application Laid-Open No. 2011-021792) aims to provide a pollen removal method that makes it possible to more reliably remove pollen attached to a human body, and remove pollen attached to a human body. A method in which a person touches a static eliminator equipped with a grounded conductor to remove static electricity charged in the human body through the conductor and, at the same time, blows air to the human body from the blower outlet of the blower. A technique is disclosed in which pollen adhering to a human body is blown away and removed. In this, air containing a large amount of pollen and the like is purified through a pre-filter and a high-function filter from a suction port provided in the lower part, and then circulates and circulates so as to be blown again to the human body from the air outlet.

  Patent Document 2 (Japanese Patent Laid-Open No. 2007-163108) provides a high-performance air shower device that can eliminate suspended fine particles and various suspended microorganisms and has an air cleaning function that is safe for the human body. An exhaust suction grid for sucking exhaust gas including dust blown off from passing objects such as passers and other parts and materials is formed below both wall surfaces of the closed space. A suction blower is disposed inside each exhaust suction grid, and passes from the left and right ventilation ducts through a high function (HEPA) filter into the purified air region, and a pressurized air flow forming nozzle It is comprised so that it may circulate to closed space via.

  Patent Document 3 (Japanese Patent Application Laid-Open No. 2005-090763) discloses a problem that the air shower process is performed promptly and dust that has been removed is prevented from reattaching to the human body and being brought into the clean room. From the end of the pay-off operation to the start of leaving the room, the exhaust fan is composed of a laminar jet fan that continues to operate in the set output mode and an air shower jet fan means that operates in the low output mode. Operate in the low power mode so that the supply amount and the exhaust amount are in competition with each other to suppress the dust that has been removed by the laminar flow from the ceiling, and the laminar flow flowing down the air shower room The air is sucked from almost the entire surface and exhausted to the outside, creating a negative pressure in the air shower room to prevent dust from flowing out of the air shower room when leaving the room. Those performed rapidly exhausted to the outside of the dust floating in the air shower chamber for communicating with the exhaust hole provided in the exhaust duct and the exhaust chamber on the side walls have been disclosed.

  Patent Document 4 (Japanese Patent Laid-Open No. 2003-279095) discloses that the possibility of re-contamination is drastically reduced by reliably discharging the pollutant without accumulating on the bottom surface of the air shower chamber. An innovative air shower device for removing contaminants that can reduce the cleaning work of the bottom surface is provided, and an opening through which the contaminants removed in the air shower chamber pass is provided on the floor of the air shower chamber. This is an air shower device for removing pollutants, provided with an air nozzle for providing an air flow for moving the pollutants that have passed through the openings to the side, provided below the floor.

  Patent Document 5 (Japanese Patent Application Laid-Open No. 2002-147810) discloses an air shower chamber and a purification device disposed on the side of the chamber for the purpose of preventing accumulation of dust and the like falling on the floor surface of the air shower chamber. And a purified air supply mechanism, wherein the purified air is sucked by the purified air supply mechanism, and the purified air is injected into the air shower chamber to circulate and purify the air in the air shower chamber. Is provided with a hollow portion that is substantially flush with the floor surface of the air shower chamber at the bottom, and the purified air supply mechanism sucks the air in the air shower chamber through the hollow portion.

JP 2011-021792 A JP 2007-163108 A Japanese Patent Laying-Open No. 2005-090763 JP 2003-279095 A JP 2002-147810 A

  The general air shower structure draws in dust from the suction port at the lower wall of the side wall of the dust removal body case, and blows out air from an air jet nozzle installed on the same wall as the suction port or on the ceiling. Had gone. In that case, there was only a portion where the suction port was close to the floor surface, and dust stagnation points were generated. At this time, it is also common to create a uniform flow by installing punching on the floor and reduce the stagnation point, but a dedicated floor with additional punching on the floor of the installation building It is necessary to provide a gap between the floor and the floor of the installation building, which has become a problem with the recent barrier-free operation.

    The present invention has been made in view of the above-mentioned problems, and prevents the stagnation point from being generated by the wind blown from the air jet nozzle, and there is no step between the floor surface of the installation building and the dust is surely secured. An object of the present invention is to provide an air shower device that can be removed.

  The air shower device according to claim 1 of the present invention is an air shower device that seals the four sides of the ceiling surface and the front, back, left, and right side wall surfaces, and is installed on the floor surface to constitute a dust removal chamber, wherein the four-way side An entrance opening and an exit opening are provided on two side wall surfaces of the wall surface, and one wall surface different from the entrance opening and the exit opening is an air blowing surface, and the entrance opening is provided. A wall surface different from any of the exit opening and the blowout surface is provided with a punching plate having a number of punching holes, and a plurality of jets for blowing air from the blowout surface toward the dust removal chamber A nozzle is installed from the vicinity of the ceiling surface to the vicinity of the floor surface, and includes a fan motor that sucks air blown from the plurality of jet nozzles from the dust removal chamber, and pressurizes the air sucked by the fan motor. fill By providing a dust removing portion that removes dust, air is blown from the plurality of jet nozzles formed from the ceiling surface of the blowing surface to the vicinity of the floor surface into the dust removing chamber, and the punching plate is used to It is characterized by sucking air in the dust removal chamber.

  In the air shower apparatus according to claim 2 of the present invention, there are many punching plates on the wall surface different from any of the entrance opening, the exit opening, and the blowout surface from the vicinity of the ceiling surface to the vicinity of the floor surface. Air is blown into the dust removal chamber from the plurality of jet nozzles formed from the ceiling surface of the blowing surface to the vicinity of the floor surface, and the floor surface from the vicinity of the ceiling surface. The air in the dust removing chamber is sucked from a large number of punching holes formed in the vicinity.

  In the air shower device according to claim 3 of the present invention, the punching plate having a wall surface different from any of the entrance opening, the exit opening, and the blow-out surface has a large number from the vicinity of the ceiling surface to the vicinity of the floor surface. The plurality of jet nozzles are formed from the ceiling surface of the blowing surface to the vicinity of the floor surface, wherein a plurality of jet nozzles for blowing air are disposed on the entire ceiling surface. And a plurality of jet nozzles formed on the entire surface of the ceiling surface to blow air into the dust removal chamber, and air in the dust removal chamber from a number of punching holes formed from the vicinity of the ceiling surface to the vicinity of the floor surface. It is characterized by inhaling.

  In the air shower device according to claim 4 of the present invention, the punching plate having a wall surface different from any of the entrance opening, the exit opening, and the blowing surface has a large number from the vicinity of the ceiling surface to the vicinity of the floor surface. A plurality of jet nozzles for blowing air over the entire surface of the ceiling surface, and a plurality of punching holes formed over the entire floor surface on the floor surface. Air from the plurality of jet nozzles formed from the ceiling surface to the vicinity of the floor surface and a plurality of jet nozzles formed on the entire surface of the ceiling surface to the dust removing chamber, and from the vicinity of the ceiling surface Air in the dust removal chamber is sucked from a large number of punching holes formed near the floor surface and a large number of punching holes formed on the entire floor surface.

  In the air shower device according to claim 5 of the present invention, the punching plate having a wall surface different from any of the entrance opening, the exit opening, and the blow-out surface has a large number from the vicinity of the ceiling surface to the vicinity of the floor surface. Punching holes are formed, and the opening ratio of the punching holes is large near the ceiling surface and small near the floor surface.

  In the air shower device according to claim 6 of the present invention, an air outlet for forming an air shower of downflow air is disposed on the ceiling surface, and a number of punching holes are formed on the entire floor surface. Formed and blown air from the plurality of jet nozzles formed from the ceiling surface to the vicinity of the floor surface of the blowing surface to the dust removing chamber, and formed from the vicinity of the ceiling surface to the vicinity of the floor surface Air in the dust removal chamber is sucked in from a large number of punching holes and a large number of punching holes formed on the entire floor surface, and the dust in the dust chamber is swept downward by an air shower from an air outlet formed in the ceiling surface. It is characterized by that.

  In the air shower device according to claim 7 of the present invention, a plurality of jet nozzles are arranged on the entire floor surface so as to blow air toward the dust removal chamber on the ceiling surface and the floor surface, The plurality of jet nozzles formed from the ceiling surface of the blowing surface to the vicinity of the floor surface, the plurality of jet nozzles formed on the entire surface of the ceiling surface, and the plurality of jet nozzles formed on the entire surface of the floor surface The air is blown out into the dust removal chamber, and the air in the dust removal chamber is sucked from a number of punching holes formed from the vicinity of the ceiling surface to the vicinity of the floor surface.

  In the air shower apparatus according to claim 8 of the present invention, a plurality of jet nozzles are arranged on the entire floor surface so as to blow air toward the dust removal chamber on the ceiling surface and the floor surface, A wall surface different from any of the entrance opening, the exit opening, and the blowout surface has a plurality of jet nozzles arranged from the vicinity of the ceiling surface to the central portion, and a number of punching holes are formed in the vicinity of the floor surface. It is characterized by that.

  In an air shower apparatus according to a ninth aspect of the present invention, a plurality of jet nozzles are disposed from the vicinity of the ceiling surface to the vicinity of the floor surface of a wall surface different from any of the entrance opening, the exit opening, and the blowout surface. And a plurality of jet nozzles for blowing air over the entire ceiling surface, and a plurality of punching holes are formed in the floor surface for sucking air in the dust removal chamber, and the blowing surface Any of the plurality of jet nozzles formed from the ceiling surface to the vicinity of the floor surface, the plurality of jet nozzles formed on the entire surface of the ceiling surface, the entrance opening, the exit opening, and the outlet surface A plurality of jet nozzles blow air to the dust removal chamber from the vicinity of the ceiling surface to the vicinity of the floor surface of different wall surfaces, and the dust removal chamber from a number of punching holes formed in the floor surface. Wherein the sucking air.

  The air shower device according to the present invention has a full punching plate in which punching holes are formed on one surface of any one of the wall surfaces, or a predetermined punching plate is provided and an air jet nozzle is disposed on the other entire surface. Thus, the stagnation point can be reduced in the dust removing chamber in the air shower apparatus.

It is a block diagram which shows the air shower in Example 1 of this invention. It is a block diagram which shows the air shower in Example 2 of this invention. It is a block diagram which shows the air shower in Example 3 of this invention. It is a block diagram which shows the air shower in Example 4 of this invention. It is a block diagram which shows the air shower in Example 5 of this invention. It is a block diagram which shows the air shower in Example 6 of this invention. It is a block diagram which shows the air shower in Example 7 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  A first embodiment of the present invention will be described with reference to FIG. In the description of the present embodiment, the terms “ceiling”, “floor”, “left / right”, and “front / rear” are for easy understanding of the positional relationship in the drawing, and each of the technical scope of the invention. It is not intended to limit the direction only. In the specification of the present application, regarding the same component, the part a placed on the ceiling is denoted by a, the part placed on the left side wall is denoted by b, and placed on the right side wall. In the following description, the reference numeral “c” is attached to a part to be processed, and the reference numeral “d” is attached to a part placed on the floor.

  FIG. 1 shows a cross-sectional view when the air shower device 101 is viewed from the front, and the air shower device 101 is viewed from the dust removal chamber 300 side of the ceiling surface 5 and left and right side wall surfaces 6 and 3 of the air shower device. The plan view is expanded and displayed. Reference numeral 101 denotes an air shower device, which includes a ceiling part 200, a left side wall part 201, and a right side wall part 202, and forms a dust removal chamber 300 by these and a floor surface of an installation place (not shown). The ceiling portion 200 includes a fan motor 1a that sucks ambient air and a filter 2a that removes dust from the air sucked by the fan motor 1a. The filter 2a is a high-performance filter called a HEPA filter. Further, an air jet nozzle 20 a for sending the air discharged from the filter 2 a to the dust removal chamber 300 is provided on the entire surface of the ceiling surface 5 on the dust removal chamber 300 side (ceiling surface 5) of the ceiling part 200. In the embodiment of FIG. 1, two, one, and two arrays are used. Similar to the ceiling part 200, the left side wall part 201 includes a fan motor 1 b and a filter 2 b, and an air jet nozzle 20 b is provided on the entire left side wall surface 6. In the embodiment of FIG. 1, the air jet nozzles 20b are arranged on the entire left wall surface 6 up to the floor surface as an array of five, four, and five from the left column in three vertical rows. Although not shown, there is a door for entering and leaving the front side in FIG. 1, and the back side is a side wall surface. It should be noted that there is no problem even if the front side and the back side are both doors, and the entrance and exit are determined to be one-way.

  The right side wall 202 is provided with a full punching plate 3 that forms a large number of punching holes 30 that serve as suction ports for sucking dust and the like from the dust removal chamber 300, and the side facing the dust removal chamber 300 of the full punching plate 3 ( A rough dust filter 4c for collecting large dust out of the dust from the punching hole 30 is provided on the right side of the entire punching plate 3 in FIG. In addition, the inside of the ceiling part 200 and the left and right side wall parts 201 and 202 is formed to be hollow, and each part 200 to 202 can freely come and go air in each hollow part. With such a configuration, the air in the dust removal chamber 300 is sucked through the coarse dust filter 4c from the punching hole 30 of the entire punching plate 3 by the suction force of the fan motors 1a and 1b, and the filters 2a and 2b through the hollow portion. And is discharged to the dust removal chamber 300 by the air jet nozzle 20a on the ceiling surface 5 and the air jet nozzle 20b on the left wall surface 6 (hereinafter, the air blown out from the air jet nozzle is referred to as an air jet). Allows air circulation.

  Air jets blown out from the air jet nozzles 20a and 20b arranged on the entire surface of the ceiling 200 and the left side wall 201 hit a person or an object (not shown) in the air shower device 101 and adhere to the person or the object by the wind pressure. Dust is removed by blowing away the dust. At this time, the dust floating in the air shower device 101 is sucked from the entire punching plate 3 arranged until reaching the floor surface of the right side wall 202. In this case, since the entire punching plate 3 having the punching holes 30 provided on the entire surface is provided on the dust removal chamber 300 side (right wall surface) of the right wall portion 202, the air jet nozzle 20b is disposed on the entire left wall surface 6. A uniform lateral flow is generated in the air jet, and the stagnation of the airflow is reduced in the entire dust removal chamber 300 (particularly near the floor), and the dust in the dust removal chamber 300 is uniformly sucked. be able to. In this way, by arranging the air jet nozzle 20b of the left wall surface 6 on one surface of the left wall surface 6, compared with a conventional air shower device that can only apply wind up to below the knee, air is also below the knee. A jet can be applied to enable reliable removal and suction of dust near the floor.

  A second embodiment of the present invention will be described with reference to FIG. FIG. 2 shows a cross-sectional view of the air shower device 102 as viewed from the front, and shows the ceiling surface 5, the left and right side wall surfaces 6 and 3, and the floor surface 7 of the air shower device on the dust removal chamber 300 side. The plan view seen from is expanded and displayed. In the following embodiments, the same structures as those in the first embodiment are denoted by the same reference numerals, and the description thereof is partially omitted.

  Compared with the first embodiment of FIG. 1, the second embodiment is provided with a floor surface portion 203, and a full punching plate in which a number of punching holes 70 are formed on one surface on the dust removal chamber 300 side (floor surface side). 7 is provided as a floor surface. On the side facing the dust removal chamber 300 of the full-surface punching plate 7 (floor surface) (the lower side of the full-surface punching plate 7 in FIG. 2) A coarse dust filter 4d for collecting dust is installed. The interior of the floor surface portion 203 is also hollow in the same manner as the ceiling portion 200 and the left and right side wall surface portions 201 and 202, and is formed so that air can be communicated with the hollow portions of the ceiling portion 200 and the left and right side wall portions 201 and 202. . As a result, air containing dust can be sucked not only from the right wall surface 202 but also from the floor 203, and the stagnation near the floor can be further reduced.

  A third embodiment of the present invention will be described with reference to FIG. 3 shows a cross-sectional view when the air shower device 103 is viewed from the front as in the case of FIG. 2, and the ceiling surface 5, the left and right side wall surfaces 6, 3, and the floor surface of the air shower device 103. 7 is a developed plan view as viewed from the dust removal chamber 300 side.

  In the third embodiment, as compared with the second embodiment in FIG. 2, the ceiling portion 200 is changed from a full jet nozzle arrangement configuration to a full punching plate 8 configuration. In this case, the ceiling part 200 includes a fan motor 1a that sucks ambient air and a filter 2a that removes dust from the air sucked by the fan motor 1a. In addition, in order to send the air discharged from the filter 2a to the dust removal chamber 300 as a uniform flow on the dust removal chamber 300 side (ceiling surface 5) of the ceiling portion 200, a large number of punching holes 80 are formed on the entire surface of the ceiling surface 5. A full punching plate 8 is provided. Thereby, the cleanliness in the dust removal chamber 300 can be quickly kept high by the uniform downflow from the ceiling surface 5 after the period of discharging the air jet from the left side wall 201 is completed.

  A fourth embodiment of the present invention will be described with reference to FIG. 4 shows a cross-sectional view of the air shower device 104 when viewed from the front as in FIG. 2, and the ceiling surface 5, the left and right side wall surfaces 6 and 3, and the floor surface of the air shower device 104. 7 is a developed plan view as viewed from the dust removal chamber 300 side.

  In the fourth embodiment, as compared with the second embodiment shown in FIG. 2, the entire punching plate 9 is provided by changing the punching ratio of the punching hole 90 in the right side wall portion 202 up and down. Thus, by changing the upper and lower aperture ratios in the entire punching plate 9, the amount of air sucked can be changed. It is possible to increase the dust removal efficiency by eliminating the air trap near the floor surface. Further, in the fourth embodiment, as in the second embodiment, the floor surface portion 203 is provided, and the entire punching plate 7 having a large number of punching holes 70 formed on one surface is provided on the dust removal chamber 300 side (floor surface side). A large amount of dust from the punching holes 70 is collected on the side facing the dust removing chamber 300 of the full-surface punching plate 7 (floor surface) (the lower side of the full-surface punching plate 7 in FIG. 2). Since the coarse dust filter 4d is installed, it is possible to further reduce stagnation near the floor.

  A fifth embodiment of the present invention will be described with reference to FIG. FIG. 5 shows a cross-sectional view of the air shower device 105 as viewed from the front as in FIG. 2, and the ceiling surface 5, the left and right side wall surfaces 6, 3, and the floor surface of the air shower device 105. 7 is a developed plan view as viewed from the dust removal chamber 300 side.

  In the fifth embodiment, a fan motor 1d, a filter 2d, and an air jet nozzle 20d are added to the floor surface portion 203, and the ceiling surface 5, the left wall surface 6, and the floor surface 7 are compared with the first embodiment in FIG. The air jet from three directions can be blown out. Accordingly, in another embodiment, it is possible to apply air with a constant wind pressure to the feet where the distance from the air jet nozzle is increased and the wind pressure is weakened.

  A sixth embodiment of the present invention will be described with reference to FIG. 6 is provided with air jet nozzles 20a, 20b, 20d, fan motors 1a, 1b, 1d and filters 2a, 2b, 2d on the air shower ceiling 200, side wall surfaces 201, 202, and floor surface portion 203 as in FIG. A plan view of the ceiling surface 5, the left and right side wall surfaces 6, 3 and the floor surface 7 of the air shower device 106 as viewed from the dust removing chamber 300 side is developed and displayed.

  In the sixth embodiment, the configuration of the right side wall 202 is different from that in FIG. That is, the configuration is such that the air jet nozzle 20c is arranged on the upper side of the right side wall portion 202 of the air shower device 106, and the punching plate 31 in which a large number of punching holes 30 are formed is arranged on the lowermost side. A coarse dust filter 4c, a fan motor 1c, and a filter 2c are disposed on the downstream side of the punching plate 31 disposed on the lowermost side. As a result, air jets can be blown out from four directions, top, bottom, left, and right, and more dust attached to the body / object can be surely dropped. In addition, since the punching plate 31 is disposed on the lowermost side, air containing dust near the floor surface portion 203 can be sucked, and stagnation near the floor surface can be further reduced. Reference numeral 10 denotes a floor air jet nozzle cover.

  A seventh embodiment of the present invention will be described with reference to FIG. FIG. 7 shows a cross-sectional view when the air shower device 107 is viewed from the front in the same manner as in FIG. 2, and the ceiling surface 5, left and right side wall surfaces 6, 3, floor surface of the air shower device 107. 7 is a developed plan view as viewed from the dust removal chamber 300 side.

  In the seventh embodiment, the ceiling portion 200 is provided with the air jet nozzle 20a, the fan motor 1a, and the filter 2a. The left wall portion 201 is provided with the air jet nozzle 20b, the fan motor 1b, and the filter 2b, and the right wall portion 202. The air jet nozzle 20c, the fan motor 1c, and the filter 2c are provided, and the entire surface punching plate 7 having a large number of punching holes 70 and the coarse dust filter 4d are provided on the floor 203. Thereby, an air jet can be blown out from three directions, upper and left and right, and dust can be sucked from the floor surface portion 203. Further, the dust remaining in the dust removing chamber 300 after the air jet is finished can be captured by the floor surface portion 203 by the downflow caused by the suction force of the coarse dust filter 4d of the floor surface portion 203.

  As mentioned above, although each Example of this invention was explained in full detail, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, although the door for entering and leaving the room is provided in the air shower device, the present invention is not limited to this, and a curtain or the like may be substituted if the fan motor has a corresponding suction force. Although the wall surface is hollow, the present invention is not limited to this, and any wall surface that forms a dust removal chamber may be used.

  The present invention is directed to the side wall surface of at least one of the ceiling and the main body, wherein the air that has been pressurized by the fan motor and removed by the HEPA filter while sucking air from the entire surface punching plate disposed on the side wall surface of the air shower room It is an air shower which has the structure which blows off with the jet nozzle from. As a result, if no floor surface is provided, there is no step when entering or leaving the building due to the use of the building floor, and a structure that can reduce dust accumulation due to suction even near the floor because the entire side surface is sucked in. It is.

  In addition to this, the present invention can also be provided with a full punching floor on the floor surface. As a result, although a step is generated, the two surfaces of the left and right side wall surfaces and the floor surface can be sucked in all, and the stagnation of air near the floor surface can be further reduced. Further, it is possible to prevent relatively heavy dust from accumulating on the floor surface. Thereby, the cleanliness of the air shower room can be kept higher.

  Further, according to the present invention, it is effective to generate a downflow by an air curtain from the ceiling surface and to arrange a full-surface suction punching plate from the floor surface. Thereby, after completion | finish of an air jet, the cleanliness in an air shower room can be kept high with a ceiling air curtain. In addition, by making the hole area of the punching plate on the floor surface higher than that on the side wall surface, the amount of air sucked in from the floor surface can be increased, and it is also efficient in removing heavy dust that tends to accumulate near the floor surface. It can remove dust well.

  In the present invention, it is also effective to configure the opening ratio of the punching plate on the side wall surface to be higher in the upper part than in the lower part. In this case, the amount of air sucked from the side wall surface is larger in the upper part than in the lower part. Thereby, since light dust is floating, it is sucked from the upper part of the side wall surface, and heavy dust falls and is sucked from the lower part of the side wall surface and the floor surface, and can be sucked in from the direction suitable for the characteristics of the dust. Therefore, dust can be removed efficiently.

  Moreover, the present invention can also be configured to blow an air jet from the floor surface. Thereby, when an occupant rotates in an air shower room, an air jet can be applied to the entire occupant's body.

  Further, the present invention can adopt a configuration in which the suction position is only a part of the lower part of one side wall surface. Thereby, air jets blow out from the top, bottom, left and right of the occupant, and dust can be removed efficiently.

101-107 Air shower apparatus 200 Ceiling part 201 Left side wall part 202 Right side wall part 203 Floor surface part 300 Dust removal chamber 1a Fan motor (for ceiling part)
1b Fan motor (for left wall)
1c Fan motor (for right side wall)
1d Fan motor (for floor surface)
2a filter (for ceiling)
2b filter (for left side wall)
2c filter (for right side wall)
2d filter (for floor surface)
4c Coarse dust filter (for right side wall)
4d Coarse dust filter (for floor)
5 Ceiling surface 6 Left wall surface 3 Right wall surface 7 Floor surface (entire punching board)
8 Ceiling surface full punching plate 9 Right side wall surface area opening rate change full surface punching plate 10 Floor air jet nozzle cover

Claims (9)

An air shower device that seals four sides of the ceiling surface and the front, rear, left and right side wall surfaces and configures the dust removal chamber by installing on the floor surface,
An entrance opening and an exit opening are provided on two side wall surfaces among the four side wall surfaces,
One of the wall surfaces different from the entrance opening and the exit opening is an air blowing surface,
A wall surface different from any of the entrance opening, the exit opening and the blowout surface includes a punching plate in which a number of punching holes are formed,
A plurality of jet nozzles for blowing air from the blow-out surface toward the dust removal chamber are installed from the vicinity of the ceiling surface to the vicinity of the floor surface, and the air blown from the plurality of jet nozzles is By providing a fan motor that sucks in from the dust removal chamber, and by providing a dust removal unit that pressurizes the air sucked by the fan motor and removes dust with a filter,
The air is blown out from the plurality of jet nozzles formed from the ceiling surface of the blowout surface to the vicinity of the floor surface into the dust removal chamber, and the air in the dust removal chamber is sucked through the punching plate. Air shower device. The punching plate of the wall surface different from any of the entrance opening, the exit opening and the blowout surface is formed with a number of punching holes from the vicinity of the ceiling surface to the vicinity of the floor surface,
A plurality of punches formed from the plurality of jet nozzles formed from the ceiling surface of the blowing surface to the vicinity of the floor surface to the dust removing chamber and from the vicinity of the ceiling surface to the vicinity of the floor surface The air shower apparatus according to claim 1, wherein air in the dust removal chamber is sucked from a hole. The punching plate of the wall surface different from any of the entrance opening, the exit opening, and the blowout surface is formed with a number of punching holes from the vicinity of the ceiling surface to the vicinity of the floor surface, and the entire ceiling surface is formed. A plurality of jet nozzles for blowing air on the
The plurality of jet nozzles formed from the ceiling surface of the blowing surface to the vicinity of the floor surface and the plurality of jet nozzles formed on the entire surface of the ceiling surface blow air to the dust removal chamber, and the ceiling surface The air shower apparatus according to claim 1, wherein air in the dust removal chamber is sucked from a large number of punching holes formed from the vicinity to the vicinity of the floor surface. The punching plate of the wall surface different from any of the entrance opening, the exit opening, and the blowout surface is formed with a number of punching holes from the vicinity of the ceiling surface to the vicinity of the floor surface, and the entire ceiling surface is formed. A plurality of jet nozzles for blowing air to the floor, and further forming a number of punching holes on the entire floor surface,
The plurality of jet nozzles formed from the ceiling surface of the blowing surface to the vicinity of the floor surface and the plurality of jet nozzles formed on the entire surface of the ceiling surface blow air to the dust removal chamber, and the ceiling surface The air shower apparatus according to claim 1, wherein air in the dust removal chamber is sucked from a large number of punching holes formed from the vicinity to the vicinity of the floor surface and a large number of punching holes formed on the entire floor surface.   The punching plate of the wall surface different from any of the entrance opening, the exit opening, and the blowout surface has a number of punching holes formed from the vicinity of the ceiling surface to the vicinity of the floor surface. The air shower apparatus according to claim 4, wherein an opening ratio is large near the ceiling surface and small near the floor surface. An air outlet that forms an air shower of downflow air is disposed on the ceiling surface, and a plurality of punching holes are formed on the entire floor surface of the floor surface,
A plurality of punches formed from the plurality of jet nozzles formed from the ceiling surface of the blowing surface to the vicinity of the floor surface to the dust removing chamber and from the vicinity of the ceiling surface to the vicinity of the floor surface The air in the dust removing chamber is sucked from a plurality of punching holes formed in the hole and the entire floor surface, and the dust in the dust chamber is pushed downward by an air shower from an air outlet formed in the ceiling surface. The air shower apparatus according to claim 2. On the ceiling surface and the floor surface, a plurality of jet nozzles are arranged on the entire floor surface so as to blow air toward the dust removal chamber,
The plurality of jet nozzles formed from the ceiling surface of the blowing surface to the vicinity of the floor surface, the plurality of jet nozzles formed on the entire surface of the ceiling surface, and the plurality of jet nozzles formed on the entire surface of the floor surface The air shower apparatus according to claim 3, wherein air is blown into the dust removing chamber from a plurality of punching holes formed from the vicinity of the ceiling surface to the floor surface. . On the ceiling surface and the floor surface, a plurality of jet nozzles are arranged on the entire floor surface so as to blow air toward the dust removal chamber,
A wall surface different from any of the entrance opening, the exit opening, and the blowout surface has a plurality of jet nozzles arranged from the vicinity of the ceiling surface to the central portion, and a number of punching holes are formed in the vicinity of the floor surface. The air shower apparatus according to claim 7. A plurality of jet nozzles are arranged from the vicinity of the ceiling surface to the vicinity of the floor surface of a wall different from any of the entrance opening, the exit opening, and the blowout surface, and air is blown over the entire ceiling surface. A plurality of jet nozzles for disposing, and forming a large number of punching holes on the entire surface in order to suck the air in the dust removal chamber on the floor surface,
The plurality of jet nozzles formed from the ceiling surface of the blowout surface to the vicinity of the floor surface, the plurality of jet nozzles formed on the entire surface of the ceiling surface, the entrance opening, the exit opening, and the blowout surface The air is blown into the dust removal chamber from a plurality of jet nozzles from the vicinity of the ceiling surface to the vicinity of the floor surface of a wall surface different from any of the above, and the air in the dust removal chamber is discharged from a number of punching holes formed in the floor surface The air shower device according to claim 1, wherein the air shower device is sucked.

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