JP3424945B2 - Spatial disinfection and recovery method and device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a space disinfection / recovery method and apparatus used for developing a disinfecting state or a sterile state such as an operating room or an intensive care unit.

[0002]

2. Description of the Related Art Conventionally, when a space such as an operating room or an intensive care unit (hereinafter simply referred to as an operating room) is disinfected, a disinfectant solution is sprayed on a site to be disinfected for a predetermined time, and then the operating room or the like. Operate the air conditioning equipment to collect the disinfectant solution floating inside. At this time, the air conditioning equipment has a built-in activated carbon, pepper filter, etc. (HEPA filter) to adsorb and remove the disinfecting liquid suspended in the air.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The above-described disinfection / collection method is performed in the air when the inside of the operating room or the like is used after the disinfectant solution is sprayed in the operating room or the like to disinfect each part to be disinfected. Since the disinfectant solution floating in is harmful to the human body, it needs to be collected. However, it is said that it takes about 6 hours to collect the disinfectant solution suspended in the air with activated carbon, a pepper filter or the like built in the air conditioning equipment, because the recovery efficiency is low. Therefore, during this period, the operating room or the like cannot be used, which is inefficient and inconvenient.

Therefore, the present invention has been made in view of the above circumstances, and is a space disinfection / recovery method capable of disinfecting / recovering an operating room or the like in a short time and improving the utilization efficiency of the operating room or the like. Another object is to provide the device.

[0005]

In order to solve the above-mentioned problems, the spatial disinfection / recovery method of the present invention uses a fine liquid particle manufacturing machine to convert the disinfectant liquid into fine disinfectant liquid particles and at the same time Air is blown at a wind speed of 0.5 to 50 m / sec to make fine disinfectant solution particle mixed air, and then this fine disinfectant solution particle mixed air is passed through a separator to substantially separate fine disinfectant solution particles larger than a prescribed particle size to produce ultrafine particles. Disinfectant liquid particle mixed air, the ultrafine disinfectant liquid particle mixed air is sent to the space to be disinfected and filled and circulated, and after a lapse of a predetermined time, fine water droplets from aseptic water such as drinking water in a fine water droplet manufacturing machine. At the same time, the air is blown into the fine water droplets at a wind speed of 0.5 to 50 m / sec to form fine water droplet mixed air, and then the fine water droplet mixed air is passed through the separator to form fine water droplets having a particle size of more than 1.0 μm. Almost separated and ultra-fine water droplets If air and without, sent to the space to be the disinfection ultra fine water droplets mixed air, Ru <br/> Ah at which capture recovering disinfecting liquid remaining in the space at ultra fine water droplets.

The space disinfection / recovery apparatus of the present invention comprises a fine liquid particle manufacturing machine for generating fine disinfectant liquid particles from a disinfectant solution, and a fine disinfectant liquid particle generated by the fine liquid particle manufacturing machine at the same time. An air blower that introduces air at a wind speed of 0.5 to 50 m / sec to form air mixed with fine disinfectant liquid particles, and a super fine disinfectant liquid that is substantially separated from fine disinfectant liquid particles larger than a predetermined particle size in the air mixed with fine disinfectant liquid particles. A disinfecting device consisting of a separator for producing particle-mixed air, a fine water droplet producing machine for producing fine water droplets from aseptic water such as drinking water, and a wind speed in the machine while producing fine water droplets by the fine water droplet producing machine. 0.5
From a blower that introduces air at -50 m / sec to form fine water droplet mixed air, and a separator that substantially separates fine water droplets having a particle size of more than 1.0 μm in the fine water droplet mixed air into ultrafine water droplet mixed air. a collecting device consisting, in constructed, Ru der a disinfectant which capture recovered by the recovery device remaining in that space along with disinfection space to be disinfected in the disinfection device.

[0007]

[Operation] By the space disinfection / collection method having the above configuration,
The principle by which the disinfecting liquid floating in the disinfected space can be collected at an early stage is not clear, but it can be estimated as follows. That is, ultrafine disinfecting liquid particle mixed air having a predetermined particle size or less is fed into the space to be disinfected, filled and circulated, and allowed to disinfect for a predetermined time. Next, when fine water droplets are generated from aseptic water such as drinking water by a fine water droplet manufacturing machine and air is blown into the fine water droplets at a wind speed of 0.5 to 50 m / sec, Leonard Due to the effect, a part of the fine water droplets becomes positive ions, and a part of the air around the fine water droplets becomes negative ions to form fine water droplet mixed air containing electrically balanced air ions. When this mixed air is passed through a separator, fine water droplets charged with cations having a particle size of more than 1 μm are separated to obtain ultrafine water droplet mixed air containing a large amount of anions. When the air mixed with ultra-fine water droplets, in which anions are dominant, is sent to the disinfected space, the role of disinfection ends, and the anions act on the disinfecting liquid that is floating and cationized, and immediately disinfects with ultra-fine water droplets. The liquid is captured and recovered.

[0008]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a block diagram of a space disinfection / recovery apparatus embodying the space disinfection / recovery method of the present invention. In FIG. 1, reference numeral 1 denotes a space disinfection / recovery device. The space disinfection / recovery device 1 is a disinfection device 3 for disinfecting an operating room (space to be disinfected) 2 and a floating in the operation room 2 The collection device 4 collects the disinfectant solution. And this disinfection device 3
Is a fine liquid particle manufacturing machine 6 for generating fine disinfecting liquid particles from the disinfecting liquid 5, and a fine liquid disinfecting liquid particle is generated by the fine liquid particle manufacturing machine 6 and at the same time, a wind speed of 0.5 to 50 m / sec in the machine.
The air blower 7 which introduces air into the mixed air of fine disinfectant liquid particles and the fine disinfectant liquid particles larger than a predetermined particle diameter in the mixed air of the fine disinfectant liquid particles are substantially separated to form ultrafine disinfectant liquid particle mixed air. And a separator 8.

The fine liquid particle manufacturing machine 6 includes a tank 10 and
An air passage 12 housed in a cylinder 11 provided on the tank 10.
A nozzle 15 provided on one wall surface 13 in the air passage 12 and spraying the disinfecting liquid 5 on the opposing wall surface 14, and these nozzles 15.
Supply pipe 16 for supplying the disinfecting liquid 5 to the
It is composed of a pump 17 for supplying the disinfectant solution 5 to the pump 16.

The separator 8 is further provided on the tank 10 of the fine liquid particle manufacturing machine 6 so as to communicate with the air passage 12 so that it can be maintained in a substantially airtight state. .
On the upper surface of the separator 8 on this tank 10, an air outlet 18 and a wind passage are provided.
An air inlet 19 is attached to the upper surface of 12 and can be connected to other devices by pipes, ducts, etc., respectively.

Further, the tank 10 has
A withdrawal pipe 20 is provided so that the disinfectant solution 5 accumulated therein can be used, and the disinfectant solution 5 can be supplied into the tank 10 by opening a valve 22 via a disinfectant solution supply pipe 21. Further, the above-mentioned supply pipe 16 is provided through the side surface of the tank 10.

The shape of the air passage 12 is not particularly limited, but the shape in the embodiment is rectangular in cross section. Then, it is preferable that the air passage 12 is normally attached to the cylindrical body 11 in the vertical direction. The nozzle 15 described above is provided on the one wall surface 13 of the air passage 12.
4 so that the axial direction of the nozzle 15 is perpendicular to
Nozzles 15e, 15b, 15c, 15 respectively
d. The disinfectant solution 5 sprayed from these nozzles 15
It collides with the opposing wall surface 14 almost vertically, and is scattered by the impact to become fine disinfectant liquid particles.

As shown in FIG. 2, a drainage receiving plate 23 is provided on the facing wall surface 14 of the air passage 12, and the drainage receiving plate 23 does not scatter the disinfectant solution 5 sprayed from the nozzle 15 on the facing wall surface 14. It receives the flowing disinfectant solution 5. That is, this drainage receiving plate
The reference numeral 23 indicates, for example, when the jet flow from the nozzle 15e flows onto the facing wall surface 14 to form a liquid film, and when the disinfectant liquid 5 jetted from another nozzle 15b hits, the liquid film becomes a cushion and the collision energy is increased. It is intended to prevent the weakening and decrease the generation of fine disinfectant particles. Further drainage receiving plate 23
A control plate 24 is provided on the opposing wall surface 14 located at the upper part of the
The control plate 24 controls the scattering direction of the disinfecting solution 5 after colliding with the facing wall surface 14 to prevent the disinfecting solution 5 from being scattered by a jet flow from another nozzle 15, that is, absorbing fine disinfecting solution particles. The drainage receiving plate 23 also has a function of controlling the scattered state shown in FIG. 3 similarly to the control plate 24.

The delivery side of the pump 17 is connected to the supply pipe 16 via a flow rate control valve 25. Also,
The suction side of the pump 17 is connected to the drawing pipe 20 of the tank 10. The pump 17 is not particularly limited as long as the predetermined capacity and pressure are satisfied, and a single suction centrifugal pump is usually used. The amount of liquid supplied to the fine liquid particle manufacturing machine 6 depends on the volume of the operating room 2 and the like, but is supplied by the pump 17 having a sufficient capacity.

The blower 7 used here is
The pressure is not particularly limited as long as it has a pressure and an air volume sufficient to secure a wind speed of 0.5 to 50 m / sec. Further, the separator 8 removes from the air mixed with the fine disinfectant liquid particles the fine disinfectant liquid particles having a predetermined particle size or more and which are mainly cations,
The air is a mixture of ultrafine disinfecting liquid particles containing a large amount of anions, and any air may be used as long as it fulfills this function. In this embodiment, a cyclone is used, and a cyclone having an appropriate diameter and length is selected according to the required particle size of fine disinfectant liquid particles. In the separator (cyclone) 8 of this embodiment, the particle size of fine water droplets is 2.0.
The one that removes those of μm or more is selected.

Next, the recovery device 4 will be described. The recovery device 4 has substantially the same structure as the above-mentioned disinfection device 3, and the same parts are designated by the same reference numerals and the description thereof will be omitted. And, to make a distinction, a after the same code
Attach.

That is, the recovery unit 4 produces fine water droplets from drinking water or the like, for example, tap water, distilled water, or aseptic water, and a fine water droplet producing machine 30 to produce fine water droplets. At the same time, the wind speed in the plane is 0.5 ~
Blower 7a that introduces air at 50 m / sec to form fine water droplet mixed air, and particle size 1.0 in the fine water droplet mixed air.
a separator 8a for substantially separating fine water droplets larger than μm into mixed air of ultrafine water droplets.
0, aseptic water 31 is supplied, that is, aseptic water 31 such as drinking water is supplied into the tank 10a by the hole tap valve 32. Drink to generate fine water droplets
By using aseptic water 31 such as water
Fine water droplets are obtained, and the disinfection effect after disinfection in the disinfection space
It ensures the fruits.

The above-mentioned operating room 2, etc., the disinfection device 3 and the recovery device 4 are connected as follows. That is, the disinfection device 3
The blowers 7 and 7a of the collecting device 4 are connected to the operating room 2 through a pipe 40. This pipe 40 has a valve
41 and 42 are provided. The operating room 2 and the like 2 are connected via the pipe 43 to the air inlet 19 of the air passage 12 of the fine liquid particle manufacturing machine 6 in the disinfection device 3 and the air inlet 19a of the air passage 12a of the fine water droplet manufacturing machine 30 in the recovery device 4, respectively. Connected. The pipe 43 is provided with valves 44 and 45.

Next, the space disinfection / recovery method of the present invention will be described using the space disinfection / recovery apparatus 1. First, the valve 41 provided in the pipe 40 is opened, the valve 42 is closed, the valve 44 provided in the pipe 43 is opened, and the valve 45 is closed. Next, in the tank 10 of the fine liquid particle manufacturing machine 6 in the disinfection device 3, the valve 22 is filled with the disinfectant solution 5 through the disinfectant solution supply pipe 21 to a predetermined level, the valve 22 is closed, the blower 7 is rotated, and the pump 17 is rotated. Let

The disinfecting liquid 5 is supplied from the supply pipe 16 to each nozzle 15, and is sprayed from each nozzle 15 to the facing wall surface 14 from one wall surface 13 in the air passage 12. The sprayed antiseptic solution 5 is on the opposite wall surface 14
Collide with and are scattered by the impact, and become fine disinfectant liquid particles.
At this time, the scattering direction of the fine disinfectant liquid particles is controlled by the control plate 24, is not affected by the disinfectant liquid ejected from the other nozzles 15 and is absorbed, so that the fine disinfectant liquid particles are generated. Not affected. Furthermore, the disinfectant solution 5 that does not scatter even if it collides with the opposing wall surface 14 and forms a liquid film on the opposing wall surface 14 flows downward and is not received by the drainage receiving plate 23 and does not flow downward, and is jetted from another nozzle 15. The disinfecting liquid does not affect the contact with the facing wall surface 14. The fine disinfectant liquid particles generated under such a condition are simultaneously diffused into the air introduced into the air passage 12 by the blower 7, and are mainly cationized fine disinfectant liquid particles by the Leonard effect and the air around them. Are anionized, and fine disinfecting liquid particle mixed air in which these cations and anions are mixed is generated. The air mixed with the fine disinfectant liquid particles immediately enters the separator 8 from the tangential direction. The air mixed with the fine disinfectant liquid particles that has entered the separator 8 becomes a swirl flow, and the fine disinfectant liquid particles having a large particle size, that is, 2.0 μm or more, hit the inner peripheral wall surface of the separator 8 and are transmitted along the inner peripheral wall surface as they are, and are directed downward. Go and enter tank 10. Therefore, the cationized microparticles of relatively large disinfectant solution having a size of 2.0 μm or more loses electrical balance, and ultrafine disinfectant particle mixed air in which anionized air particles are predominant is obtained. The mixed air containing the ultrafine disinfectant liquid particles of less than 2.0 μm enters the operating room 2 through the air outlet 18, the blower 7, the pipe 40 and the valve 41. And
The air mixed with the ultrafine disinfectant liquid that has been disinfected in the operating room 2 is again returned to the air inlet via the pipe 43 and the valve 44.
It is supplied into the air passage 12 of the fine liquid particle manufacturing machine 6 from 19 and is circulated for a certain period of time to disinfect the inside of the operating room 2 or the like.

When the disinfection in the operating room etc. 2 is completed, the disinfecting solution floating in the operating room etc. 2 must be collected, so this time, the valve 41 of the pipe 40 is closed and the valve 42 is opened. Further, the valve 44 of the pipe 43 is closed and the valve 45 is opened. Next, the tank of the fine water drop manufacturing machine 30 in the recovery device 4
Drinking water 31 is supplied to the 10a by the ball tap valve 32, and the blower 7a is rotated. Drinking water 31 is supplied to each nozzle 15a from the supply pipe 16a similarly to the case of the disinfection device 3, and the air passage
The water is ejected from one wall surface 13a in 12a to the opposing wall surface 14a to form fine water droplets.

The fine water droplets generated under such a condition are
At the same time, the air blower 7a diffuses into the air introduced into the air passage 12a to generate fine water droplet mixed air in which cations and anions are mixed, and this fine water droplet mixed air is immediately tangentially applied to the separator 8a. enter. The fine water droplets mixed air that has entered the separator 8a becomes a swirling flow and has a large particle size, that is,
Fine water droplets of 1.0 μm or more hit the inner peripheral wall surface of the separator 8a, travel along the inner peripheral wall surface as it is, and go downward to the tank 10a.
Upon entering, the anionized air particles became dominant and became 1m
^It is possible to obtain air mixed with ultra-fine water droplets containing 1.25 × 10 ⁹ or more anions in ³ . The anionized mixed air containing ultra-fine water droplets of 1.0 μm or less passes through the air outlet 18a, the blower 7a, the pipe 40 and the valve 42, and the operating room 2
to go into. Then, the ultra-fine water droplets capture and collect the antiseptic solution 5 floating in the operating room 2 and the like, and again the pipe 43 and the valve.
The air passage 19 from the air inlet 19a through the wind passage 12 of the fine water drop making machine 30.
When it is supplied to the inside of a and is circulated for about 30 minutes, the disinfectant solution 5 is completely captured and recovered.

In the present embodiment, the operation room 2 is disinfected by the disinfection device 3 of the present invention, and the disinfecting solution 5 suspended in the operation room 2 is then recovered by the recovery device 4. As described above, it is also possible to disinfect the inside of the operating room 2 by an appropriate means and then collect the antiseptic solution 5 suspended in the operating room 2 by the recovery device 4 of the present invention. There is no end.

[0024]

As described in detail above, according to the present invention, by sending ultrafine disinfectant liquid particle-mixed air into the space to be disinfected, the space can be disinfected earlier than before, and drinking water, etc.
Disinfect air mixed with ultra-fine water droplets generated from aseptic water
It floats and becomes positively ionized by being sent to
The disinfecting solution is presumed to have anions acting on it,
One tenth of the conventional antiseptic solution floating in the space
It has the effect of enabling capture and recovery in the following times.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a space disinfection / recovery device embodying a space disinfection / recovery method of the present invention.

FIG. 2 is a cross-sectional view of a part of a wind passage.

FIG. 3 is a cross-sectional view showing how water jets are scattered from nozzles in a wind passage.

[Explanation of symbols]

1 Spatial disinfection / collection device 2 Operating room, etc. (space to be disinfected) 3 Disinfection device 4 Recovery device 5 Disinfectant liquid 6 Fine liquid particle manufacturing machine 7, 7a Blower 8, 8a Separator 30 Fine water drop manufacturing machine 31 Drinking water, etc.

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Claims (2)

(57) [Claims] 1. A fine liquid particle production machine is used to turn the disinfectant liquid into fine disinfectant liquid particles, and at the same time, a wind speed of 0.5 is applied to the fine disinfectant liquid particles.
Air is blown at ~ 50m / sec to make fine disinfectant liquid particle mixed air, and then this fine disinfectant liquid particle mixed air is passed through a separator to substantially separate fine disinfectant liquid particles larger than a predetermined particle size to obtain ultrafine disinfectant liquid. Formed as particle-mixed air, the ultra-fine disinfectant liquid is mixed with the particle-mixed air to be filled and circulated in the space to be disinfected, and after a predetermined time passes, fine water droplets are generated from aseptic water such as drinking water in a fine water droplet manufacturing machine. At the same time, air is blown into the fine water droplets at a wind speed of 0.5 to 50 m / sec to form fine water droplet mixed air. Then, the fine water droplet mixed air is passed through the separator to substantially separate fine water droplets having a particle size of 1.0 μm or more. The space disinfection / recovery is characterized in that the mixed air is formed into an ultrafine water droplet mixed air, the ultrafine water droplet mixed air is sent to the space to be disinfected, and the disinfecting liquid remaining in the space is captured and collected by the ultrafine water droplet. Method. 2. A fine liquid particle manufacturing machine for generating fine disinfectant liquid particles from a disinfectant solution, and a fine disinfectant liquid particle generated by the fine liquid particle manufacture machine, and at the same time, a wind speed of 0.5 to 50 m / se in the machine.
An air blower that introduces air in c to produce mixed air of fine disinfectant liquid particles and the fine disinfectant liquid particles larger than a predetermined particle diameter in the mixed air of fine disinfectant liquid particles are substantially separated to form ultrafine disinfectant liquid particle mixed air. A disinfection device consisting of a separator, a fine water droplet manufacturing machine that generates fine water droplets from aseptic water such as drinking water, and a wind speed of 0.5 to 50 m / sec inside the machine while generating fine water droplets by the fine water droplet manufacturing machine. With a blower that introduces air into a fine water droplet mixed air, and a separator that comprises a separator that substantially separates fine water droplets having a particle size larger than 1.0 μm in the fine water droplet mixed air into an ultrafine water droplet mixed air. The space disinfection / recovery device, characterized in that the space to be disinfected is disinfected by the disinfection device, and the disinfecting liquid remaining in the space is captured and recovered by the recovery device.