JPH02115641A - Air showering apparatus - Google Patents

Abstract

PURPOSE:To prevent fine particles from being brought into a clean room by indispensably moving the body of a person entering a showering room in the room, and accelerating the own dust removal. CONSTITUTION:When a person enters a showering room 1 by opening an inlet door 2, a person confirmation sensor is operated to drive a high pressure fan 10, high speed air jet stream is injected from a diffuser 4, a motor 13 for driving a moving implement 8 is operated, and a floor face is moved reversely to the person advancing direction. The person walks or runs in the room 1, dust removing amount is increased approx. 10 times as large as that when he stands still in the room. The dusts removed from the person are collected by HEPA filters 12, 14 to be sucked to air suction port 7 provided at the lower part of the room to prevent from being brought into a clean room. When the entering person touches by hand with a hanging rod 5 provided at a ceiling or a handrail 6 to be charged with static electricity he gets charged. Even if the fine particles are attracted to the person by the static electricity, its one end is grounded, the static electricity is all discharged to the ground to eliminate the adherence of the dusts by the static electricity.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an air shower device installed in a clean room, and is particularly suitable for improving the effect of effectively removing dust and bacteria attached to persons entering the room. Use an air shower device.

[Conventional technology]

As described in Japanese Patent Application Laid-Open No. 11038/1983, conventional air showers generally have a fixed aisle floor, and therefore, the occupants remain stationary and are exposed to the air jet stream. Although it is famous that people entering the room are instructed to tap their clothes with their hands in order to increase the effect of scattering adhering dust, in reality, in most cases, the room remains stationary. Furthermore, as described in Japanese Patent Application Laid-open No. 53-35269, there is a system in which the person entering the room is rotated on a rotary table, or the person in the room is stationary on the table, so that a sufficient dust removal effect cannot be expected.

[Problem to be solved by the invention]

The above conventional technology simply uses the power of air jets to blow off dust and bacteria that have adhered to people entering the room. They tend to stand in a position where the air jet stream does not come into contact with them (for example, in front of the exit door) and wait for the shower ring to stop, and in this case, the air shower function is not fully utilized.

An object of the present invention is to naturally promote the effect of removing adhering dust by an air shower without relying on the consciousness of the person entering the room.

[Means to solve the problem]

In order to achieve the above object, a dust generation promoting means is provided in the air shower room, so that the generation of dust from the persons entering the room is inevitably promoted.

[Effect]

The dust generation promoting means in the shower room operates in such a way that the person entering the shower room is forced to move his or her body.

As a result, the amount of dust emitted from the occupants increases compared to the stationary state.

The air jet stream also blows away the generated dust.

In this way, in addition to the dust removal effect of the air jet stream, the occupants themselves also naturally promote dust generation, so this synergistic effect improves the dust removal effect in the shower room and reduces the dust in the clean room. can be prevented from being brought in.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. 1 is a shower room directly connected to the entrance/exit of the clean room and formed as a spare room; 2° 2' is an entrance/exit door for the shower room 1, which is provided on two adjacent sides of the shower room 1; An air outlet 3 is installed in the ceiling of the shower room 1. A HEPA filter I4 and a blower 8 are installed in the middle of a ventilation duct 15 that connects the air suction lower at the bottom of the shower room and the ceiling outlet 3, and clean air is supplied to the ceiling. It is discharged from the outlet 3 as an Fti flow at a relatively low velocity (0.2 to 2 m/s). In addition, a HEPA filter 12 and a high-pressure fan 10 are installed in the middle of the ventilation duct 1G that connects the air jet airflow outlet 4 provided on both opposing sides of the shower room l with the air suction lower at the bottom of the shower room. is ejected toward the human body as a high-speed air jet, and the vibration of the jet air causes dust adhering to clothes to be scattered.

The feature of this embodiment is that an exercise tool 8 is provided on the floor of the shower room 1 as a means for promoting dust generation, and the exercise equipment 8 is configured to move in the direction opposite to the direction in which the person entering the room moves. Furthermore, exercise equipment 8
Parallel bar-shaped handrails 6 are provided on both sides of the shower room 1, and a vibrator 5 from which a person entering the shower room can hang is provided near the ceiling of the shower room 1. These materials are made of conductive material, and one end thereof is grounded.

Note that the handrail 6 and the vibrator 5 also have a function as a dust generation promoting means, as will be described later.

When a person enters the shower room 1 by opening the entrance door 2, the person confirmation sensor provided at any position in the shower room is activated, the high pressure fan 10 is operated, and a high-speed air jet stream is ejected from the air outlet 4. At the same time, the drive motor 13 of the exercise equipment 8 is activated, and the floor surface begins to move in the opposite direction to the direction of movement of the person entering the room.

As a result, the person entering the shower room will inevitably walk or run within the shower room 1, and due to this movement, the amount of dust emitted from the person entering the shower room will be approximately 10 times (100,000 The dust emitted by these people entering the room is sucked into the air suction lower installed at the bottom of the shower room, collected by HEPA filters 12 and 14, and taken to the clean room. This means that this has been prevented. Also, the person entering the room is wearing exercise equipment 8.
By touching the conductive handrails 6 installed on both sides of the room or the hanging rod 5 installed on the ceiling, a person entering the room will be charged with static electricity, and even if there are particles attached due to the electrostatic force, one end will be grounded to the ground. Due to this, all static electricity flows to ground.

This eliminates the adhesion of dust due to static electricity.

In order to make the person entering the room aware of these operations, an audio unit 17 is used to guide the person, and to make the person visually aware of the remaining time in the shower ring, indicator lamps divided into 5 to 10 stages are turned on sequentially as time passes.

As described above, the present invention has the most important function of an air shower system, which is to remove dust adhering to people entering a clean room.In addition to dust removal using an air jet stream, the present invention also uses a method that requires physical movement. The synergistic effect with dust generation enhances the air shower effect, making it an ideal air shower device and greatly contributing to maintaining the cleanliness of the clean room.

In addition, as an additional effect, it eliminates psychological irritation in the shower room, provides a refreshing exercise before performing ultra-precise work in the clean room, and contributes to creating a healthy work environment.

〔Effect of the invention〕

According to the present invention, occupants inevitably move their bodies in the shower room and promote their own dust generation, so it is possible to improve the effectiveness of preventing fine particles from being brought into the clean room. It can contribute to maintaining cleanliness.

Furthermore, it can be expected to have a refreshing effect on workers entering the clean room, contributing to the creation of a healthy environment.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a shower device according to an embodiment of the present invention, seen from the side, and FIG. 2 is a vertical cross-sectional view of the air shower device according to an embodiment of the present invention, seen from the front. 1...Shower room, 4...Air jet outlet,
12.14...HEPA filter, 10.11...
Blower, 8... Exercise equipment, 6... Parallel bars (handrail),
5... Hanging rod, 9... Grounding part, 17... Audio unit, 18... Shower ring remaining time indicator light. Figure 4 Figure 2

Claims (1)

[Claims] 1. In an air shower device that includes a shower room and is configured to spray an air jet onto a person entering the shower room to blow off dust adhering to the person entering the room, An air shower device having a dust generation promoting means operated to inevitably increase dust generation.