JP2015028405A - Dispersion prevention apparatus and dispersion prevention method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deactivation apparatus which can deactivate hazard substances sticking to clothes without making the hazard substances invade to the inside of the clothes.SOLUTION: A deactivation apparatus 1 deactivates hazard substances sticking to clean clothes 10. The deactivate apparatus 1 comprises a shower cubicle 20 containing a worker A in the clean clothes 10, and a mist nozzle 21 provided in the shower cubicle 20 and spraying water mist by mixing compressed air and water. By spraying water mist from the mist nozzle 21 and surrounding the whole of the clean clothes 10 with the water mist, the water mist moistens the surface of the clean clothes 10 equally without soaking into the clean clothes, and the hazard substances sticking to the surface of the clean clothes 10 are deactivated.

Description

  The present invention relates to a deactivation device for deactivating hazard substances attached to clothes.

  2. Description of the Related Art Conventionally, in manufacturing plants for chemical products and medicines, there are processes of using hazard substances that are harmful to human bodies and generating hazard substances in the manufacturing process of products. In this case, the worker wears a dust-free garment to minimize the chance of direct contact with the hazard material.

Here, the dust-free garment is a garment made of a fabric in which fibers that are less likely to generate dust are finely woven to prevent permeation of dust.
When leaving the manufacturing room that handles hazard substances, the worker enters the shower room where the hand shower is provided, and wets the dust-free clothes with the water flow of this hand shower, thereby activating the attached hazard substance. Deactivation is performed (see, for example, Patent Document 1).

JP 2009-24907 A

However, when the dust-free garment is wetted with a hand shower, the hazard material flows into the dust-free garment from the gap between the stitched part of the dust-free garment and the fasteners required for the detachable garment. There was a risk of sticking to the person's skin.
Therefore, the worker has been working in the shower room to remove the deactivated clothes and completely wipe the entire body. As a result, there is a problem that the work of deactivating the hazard substance takes time and the work efficiency is lowered.

  An object of this invention is to provide the deactivation apparatus which can deactivate the hazard substance adhering to clothes, without making it penetrate | invade into the inside of clothes.

  The deactivation device according to claim 1 is a deactivation device (for example, deactivation device 1 described later) for deactivating a hazard substance attached to clothes (for example, a dustless garment 10 described later). In addition, a room (for example, a shower room 20 described later) in which a wearer of clothes (for example, a worker A described later) is accommodated, and a compressed air and water are mixed to form water. A nozzle (for example, a mist nozzle 21 described later) for spraying mist, spraying water mist from the nozzle and wrapping the entire clothes with the water mist so that the water mist is immersed in the clothes. It is characterized in that the surface of the garment is uniformly moistened without penetration and the hazard substance adhering to the surface of the garment is deactivated.

  In the present invention, deactivation refers to changes in physical properties due to chemical changes of the hazard substance, washing of the hazard substance, and prevention of scattering by moistening the fine powder hazard substance with water. This includes a state where hazard substances can be prevented from sticking to the mouth or skin when undressing clothes.

According to this invention, water mist is sprayed from the nozzle, and the entire surface of the garment is wrapped with the water mist, so that the surface of the garment is uniformly moistened with the water mist and the hazard substance adhering to the surface of the garment is lost. Make it live.
As described above, since the surface of the garment is uniformly moistened with water mist, the hazard substance attached to the garment can be deactivated. In addition, since water mist has a smaller water droplet size and water volume compared to the water flow of a hand shower, even if the surface of the clothes is moistened with this water mist, the hazard substances adhering to the clothes will remain with the water as before. It does not soak inside clothing.
Therefore, when leaving the room that handles the hazard substance, the hazard substance deactivation work can be performed quickly, so that the work efficiency can be prevented from being lowered.

  The deactivation device according to a second aspect is characterized in that a switch (for example, a switch 53 described later) for spraying water mist from the nozzle by being pressed is provided inside the chamber.

  According to the present invention, since the water mist is sprayed from the nozzle simply by pressing the switch, the hazard substance adhering to the clothes can be easily deactivated.

  The deactivation device according to a third aspect is characterized in that the nozzle is a two-fluid nozzle.

  According to the present invention, a two-fluid nozzle is used as the nozzle. Since this two-fluid nozzle generates fine droplets in a wide range, it is suitable for a water mist generating nozzle, and the entire surface of the garment can be moistened uniformly by wrapping the entire garment with the water mist.

  The deactivation device according to claim 4 is characterized in that water mist is sprayed by supplying compressed air while keeping a supply pressure of water to the nozzle constant.

  The two-fluid nozzle has a problem that it is difficult to instantaneously generate a desired spray shape. When the desired spray shape cannot be formed instantaneously, a large droplet is applied to the worker and wets the inside of the dust-free garment. However, according to the present invention, since the water supply pressure to the nozzle is always constant and the water mist is sprayed by supplying compressed air, a desired spray shape can be generated instantaneously.

  The deactivation apparatus according to claim 5, wherein a supply pressure of water to the nozzle is 0.1 MPa or more and 0.5 MPa or less, and a supply pressure of compressed air to the nozzle is 0.15 MPa or more and 0.55 MPa or less. It is characterized by being.

According to the present invention, it is possible to form a spray shape in which the water mist covers the whole body of the operator without water penetrating into the clothes. When the water supply pressure is less than 0.1 MPa, the spray shape is too narrow to cover the whole body, and when the water supply pressure exceeds 0.5 MPa, the amount of water supply increases and the clothes Water soaks into the interior of the house.
More preferably, the supply pressure of water to the nozzle is 0.15 to 0.25 MPa, and the supply pressure of compressed air to the nozzle is 0.2 to 0.3 MPa.

  The deactivation device according to claim 6 is characterized in that the water mist has a droplet diameter of 10 μm or more and 500 μm or less.

According to the present invention, it is possible to form a spray shape in which the water mist covers the whole body of the operator without water penetrating into the clothes. When the water mist droplet diameter is less than 10 μm, the spray shape does not spread, and when the water mist droplet diameter exceeds 500 μm, water penetrates into the clothes.
More preferably, the water mist droplet diameter is not less than 30 μm and not more than 300 μm.

  Further, the spray shape of the water mist is preferably a cone shape, and the spray angle of the water mist is preferably 30 ° or more and 60 ° or less.

  In this way, a sufficient amount of water mist can be sprayed while covering the whole body of the worker. If the spray angle is less than 30 °, the whole body of the worker cannot be covered, and if the spray angle is greater than 60 °, the amount of water mist inside the cone is reduced.

  In addition, the spray time of water mist can be increased or decreased depending on the ease of deactivation of the hazard substance, and when it is completely deactivated or removed, spraying of 1 minute or more and 10 minutes or less is preferable, and when it is deactivated by scattering prevention For this, spraying of 0.5 minutes or more and 2 minutes or less is preferable.

  According to the present invention, water mist is sprayed from the nozzle, and the entire surface of the garment is wrapped with the water mist, so that the surface of the garment is uniformly moistened with the water mist and the hazard substance adhering to the surface of the garment is lost. Make it live. As described above, since the surface of the garment is uniformly moistened with water mist, the hazard substance attached to the garment can be deactivated. In addition, since water mist has a smaller water droplet size and water volume compared to the water flow of a hand shower, even if the surface of the clothes is moistened with this water mist, the hazard substances adhering to the clothes will remain with the water as before. It does not soak inside clothing. Therefore, when leaving the room that handles the hazard substance, the hazard substance deactivation work can be performed quickly, so that the work efficiency can be prevented from being lowered.

It is a schematic diagram of the deactivation apparatus which concerns on one Embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic diagram showing a configuration of a deactivation device according to an embodiment of the present invention.

The deactivation device 1 is a device that deactivates the hazard substance attached to the dust-free garment 10 of the worker A.
The deactivation device 1 includes a shower chamber 20 in which an operator A wearing a dust-free garment 10 is accommodated, a mist nozzle 21 provided on a ceiling surface 20A inside the shower chamber 20, and a shower chamber 20 Compressed air and water are supplied to the shower head 22 hung on the inner wall surface 20B, the drainage drain 23 provided on the floor surface 20C of the shower chamber 20, and the mist nozzle 21, and water is supplied to the shower head 22. Supply device 30.

The mist nozzle 21 is a two-fluid nozzle. When compressed air and water are supplied from the supply device 30, the mist nozzle 21 mixes the compressed air and water and sprays the water mist downward. The mist nozzle 21 can adjust the spray flow rate and the droplet diameter by changing the supply pressure of water and / or compressed air.
The drainage drain 23 drains the water accumulated on the floor surface 20 </ b> C of the shower room 20.

  The supply device 30 includes a water supply pipe 40 that sends water to the mist nozzle 21 and the shower head 22, and an air supply pipe 50 that sends compressed air to the mist nozzle 21.

The water supply pipe 40 is branched into two branch pipes 40A and 40B at a branch point. One branch pipe 40A is connected to the mist nozzle 21, and the other branch pipe 40B is connected to the shower head 22. .
Two valves 41 and 42 for opening and closing the water supply pipe 40 are provided upstream of the branch point of the water supply pipe 40. The branch pipe 40B is provided with a valve 43 that opens and closes the branch pipe 40B. The water supply pressure of the water supply pipe 40 to the mist nozzle 21 is 0.1 MPa or more and 0.5 MPa or less.

The supply pipe 50 is provided with an electromagnetic valve 51 for opening and closing the supply pipe 50 and a pressure reducing valve 52 for reducing the pressure in the supply pipe 50. The supply pressure of compressed air to the mist nozzle 21 is 0.15 MPa or more and 0.55 MPa or less.
A switch 53 for controlling the electromagnetic valve 51 is provided on the wall surface 20 </ b> B of the shower chamber 20. When the switch 53 is pressed, the electromagnetic valve 51 is opened.

  In the deactivation device 1 described above, water is always supplied to the mist nozzle 21 at a constant supply pressure. When the switch 53 is pressed in this state, the electromagnetic valve 51 is opened and compressed air is supplied from the air supply pipe 50 to the mist nozzle 21. Then, the mist nozzle 21 mixes the compressed air and water, and sprays the water mist in a range indicated by a two-dot chain line M in FIG.

  At this time, the droplet diameter of the water mist sprayed from the mist nozzle 21 is 10 μm or more and 500 μm or less. Moreover, the spray shape of the water mist sprayed from the mist nozzle 21 is cone shape, and the spray angle of water mist is 30 degrees or more and 60 degrees or less.

  Thereafter, when the switch 53 is pressed again, the electromagnetic valve 51 is closed, the supply of compressed air from the air supply pipe 50 to the mist nozzle 21 is stopped, and the spraying of water mist from the mist nozzle 21 is stopped.

The usage method of the deactivation apparatus 1 is as follows.
The worker A enters the shower room 20 with the hazard substance attached to the dust-free garment 10.
Next, the worker A presses the switch 53. Then, water mist is sprayed from the mist nozzle 21, and the entire surface of the dust-free garment 10 is wrapped with the water mist, so that the surface of the dust-free garment 10 is uniformly moistened without the water mist soaking into the dust-free garment 10. The hazard substance adhering to the surface of the dust-free garment 10 is deactivated.
Thereafter, the worker A undresses the dust-free garment 10 and leaves the shower room 20.

According to this embodiment, there are the following effects.
(1) Since the surface of the dust-free garment 10 is uniformly moistened with water mist, the hazard substance attached to the dust-free garment 10 can be deactivated. Further, since the water mist has a smaller water droplet size and a smaller amount of water than the water flow of a hand shower, even if the surface of the dustless garment 10 is moistened with this water mist, it adheres to the dustless garment 10 as in the past. Hazardous material does not soak into the dustless garment 10 together with water. Therefore, when leaving the room that handles the hazard substance, the hazard substance deactivation work can be performed quickly, so that the work efficiency can be prevented from being lowered.

  (2) Since the water mist is sprayed from the mist nozzle 21 simply by pressing the switch 53, the hazard substance adhering to the dustless garment 10 can be easily deactivated.

  (3) Since the mist nozzle 21 is a two-fluid nozzle, the entire dustless garment 10 can be wrapped with water mist, and the surface of the dustless garment 10 can be uniformly moistened.

  (4) Since the water supply pressure to the mist nozzle 21 is always constant and the water mist is sprayed by supplying compressed air, a desired spray shape can be generated instantaneously.

  (5) The supply pressure of water to the mist nozzle 21 is set to 0.1 MPa or more and 0.5 MPa or less, and the supply pressure of compressed air to the mist nozzle 21 is set to 0.15 MPa or more and 0.55 MPa or less. Therefore, a spray shape in which the water mist covers the whole body of the worker A can be formed without water soaking into the dust-free garment 10.

  (6) Since the droplet diameter of the water mist is 10 μm or more and 500 μm or less, the water mist can form a spray shape that covers the whole body of the worker A without water penetrating into the dust-free garment 10.

  (7) Since the spray shape of the water mist is corn and the spray angle of the water mist is 30 ° or more and 60 ° or less, a sufficient amount of water mist can be sprayed while covering the whole body of the worker A.

  It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.

A ... Worker 1 ... Deactivation device 10 ... Dust-free clothes (clothes)
20 ... Shower room (room)
20A ... Ceiling surface 20B ... Wall surface 20C ... Floor surface 21 ... Mist nozzle (nozzle)
22 ... Shower head 23 ... Drain drain 30 ... Supply device 40 ... Water supply pipe 40A, 40B ... Branch pipe 41, 42, 43 ... Valve 50 ... Air supply pipe 51 ... Solenoid valve 52 ... Pressure reducing valve 53 ... Switch

The present invention relates to a scattering prevention device and a scattering prevention method for preventing scattering by moistening a hazard substance attached to clothes with water .

An object of the present invention is to provide a scattering prevention device and a scattering prevention method that can inactivate a hazard substance adhering to clothes without invading the inside of the clothes.

The anti-scattering device according to claim 1 is an anti-scattering device (for example, an inactivation device described below) that prevents scattering by moistening a hazard substance adhering to clothes (for example, a non-dust garment 10 described below) with water. 1) a room (for example, a shower room 20 described later) in which a wearer of clothes (for example, a worker A described later) is accommodated, and a compressed air and water provided inside the room. A nozzle that mixes and sprays water mist (for example, a mist nozzle 21 described later), sprays water mist from the nozzle, and wraps the entire clothes with the water mist so that the water mist The surface of the garment is uniformly moistened without immersing into the garment, and the hazard substance adhering to the surface of the garment is moistened with water to prevent scattering .

The scattering prevention device according to claim 7 is characterized in that a switch (for example, a switch 53 described later) for spraying water mist from the nozzle when pressed is provided inside the chamber.

The scattering prevention device according to claim 5 is characterized in that the nozzle is a two-fluid nozzle.

The scattering prevention device according to claim 4 is characterized in that water mist is sprayed by supplying compressed air while keeping a supply pressure of water to the nozzle constant.

The scattering prevention device according to claim 3 , wherein a supply pressure of water to the nozzle is 0.1 MPa or more and 0.5 MPa or less, and a supply pressure of compressed air to the nozzle is 0.15 MPa or more and 0.55 MPa or less. It is characterized by being.

The scattering prevention device according to claim 2 is characterized in that the water mist has a droplet diameter of 10 μm or more and 500 μm or less.

Claims (6)

A deactivation device for deactivating hazard substances attached to clothes,
A room in which the wearer of the clothes is housed;
A nozzle that is provided inside the chamber and that mixes compressed air and water to spray water mist;
By spraying water mist from the nozzle and wrapping the entire garment with the water mist, the surface of the garment is uniformly moistened with the water mist and the hazard substances attached to the surface of the garment are lost. A deactivation device characterized by being activated.   The deactivation apparatus according to claim 1, wherein a switch for spraying water mist from the nozzle by being pressed is provided inside the chamber.   The deactivation device according to claim 1, wherein the nozzle is a two-fluid nozzle.   The deactivation device according to any one of claims 1 to 3, wherein water mist is sprayed by supplying water under a constant pressure to supply water to the nozzle. The supply pressure of water to the nozzle is 0.1 MPa or more and 0.5 MPa or less,
The deactivation device according to any one of claims 1 to 4, wherein a supply pressure of compressed air to the nozzle is 0.15 MPa or more and 0.55 MPa or less.   The deactivation apparatus according to any one of claims 1 to 5, wherein the water mist has a droplet diameter of 10 µm or more and 500 µm or less.

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