JP2004116924A - Air conditioning facility and hospital infection suppression method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioning facility capable of killing floating germs in supplied air-conditioning air or floating germs in indoor air, and a hospital infection suppression method using this facility. <P>SOLUTION: A outlet unit 10 comprises a casing 50, a sterilization lamp 60 and the like, and a cone 62 mounted with a reflector 56 is arranged on the lower part of the casing 50. Since a rotating flow by conditioning air is generated in the casing 50, the sterilization time of the conditioning air by sterilizing light in the casing 50 can be kept long, and the floating germs in the conditioning air can be efficiently killed. Since the sterilization light from the sterilization lamp 60 is emitted to the upper part of a room 1, and the floating germs in the air near the ceiling 7 of the room 1 can be also killed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an air conditioner and a hospital infection control method, and more particularly to an air conditioner and a hospital infection control method used in medical facilities and the like for sterilizing and removing airborne bacteria in air.
[0002]
[Prior art]
In hospitals and other medical facilities, various types of bacteria are suspended in the air inside the hospital, so nosocomial infection by these suspended bacteria has been a problem, and air-conditioning equipment that can sterilize and remove the suspended bacteria is required. I have.
[0003]
In a conventional air conditioner, air in a room is circulated and passed through a filter of the air conditioner, and the airborne bacteria are removed by the filter to reduce the airborne bacteria in the air in the room.
[0004]
However, such an air conditioner could not reliably prevent hospital-acquired infection due to a low removal rate of airborne bacteria. To cope with this, air conditioners that add multiple filters to the air conditioner or replace filters with high-performance filters increase equipment costs and require a high-output blower because the pressure loss due to the filters increases. there were.
[0005]
Furthermore, in hot and humid seasons such as summer, dew forms on the temperature adjustment coil inside the air conditioner, causing bacteria to adhere to the dew and generate mold and bacteria. There was a problem of getting in. Since a general air conditioner is provided with a filter on the upstream side of the air flow of the temperature control coil, it has been difficult to remove bacteria generated in such a temperature control coil.
[0006]
In order to solve this, a germicidal lamp is attached to the air supply duct for transporting the air-conditioning air from the air conditioner, and sterilizing light is radiated to the air-conditioning air in the air supply duct to sterilize airborne bacteria in the air-conditioning air. A technique for performing the operation is known (for example, see Patent Document 1).
[0007]
[Patent Document 1]
JP-A-11-14130
[0008]
[Problems to be solved by the invention]
However, the air-conditioning air in the duct has a fast flow, and it is difficult to sufficiently sterilize the floating bacteria in the air-conditioning air by the germicidal light, and the floating bacteria may enter the room. Further, since the air supply duct is generally installed on the ceiling, there has been a problem that maintenance such as replacement of a germicidal lamp is complicated.
[0009]
The present invention has been made in view of such circumstances, and provides air-conditioning equipment capable of disinfecting floating bacteria in supplied air-conditioned air and air-borne bacteria in indoor air, and utilizes the air-conditioning equipment. It is intended to provide a method for suppressing hospital-acquired infections in hospitals.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, an invention according to claim 1 is an air conditioner including an air outlet unit that blows out conditioned air supplied from an air conditioner into a room, wherein the air outlet unit includes an inside of the air outlet unit. And a germicidal lamp for irradiating germicidal light toward the room is provided.
[0011]
According to the first aspect of the present invention, since the sterilizing light is applied to the inside of the outlet unit, it is possible to sterilize the floating bacteria in the air-conditioned air supplied to the room. In addition, since the germicidal light is applied to the interior of the room, the bacteria can be sterilized against airborne bacteria in the air in the room.
[0012]
According to the second aspect of the present invention, since the reflector for adjusting the irradiation direction of the germicidal light is provided around the germicidal lamp of the outlet unit, the germicidal light is directly sterilized by the eyes of the person in the room. Light irradiation can be prevented.
[0013]
According to a third aspect of the present invention, there is provided an air conditioner including a suction unit that sucks air in a room, wherein the suction unit is provided with a germicidal lamp that radiates germicidal light toward the inside of the suction unit and the room. It is characterized by having provided.
[0014]
According to the third aspect of the present invention, since the sterilizing light is applied to the inside of the suction port unit, it is possible to sterilize the floating bacteria in the air sucked from the room and prevent the discharge of the floating bacteria from the room. In addition, since the germicidal light is applied to the interior of the room, the bacteria can be sterilized against airborne bacteria in the air in the room.
[0015]
According to the invention described in claim 4, since the reflector for adjusting the irradiation direction of the germicidal light is provided around the germicidal lamp of the suction port unit, the germicidal light is directly sterilized by the eyes of the person in the room. Light irradiation can be prevented.
[0016]
The invention according to claim 5 is characterized in that the air-conditioning equipment according to any one of claims 1 to 4 is provided in a hospital so as to suppress nosocomial infection caused by airborne bacteria in the hospital. I do.
[0017]
According to the fifth aspect of the invention, nosocomial infection caused by airborne bacteria in a hospital can be suppressed.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of an air conditioner according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a configuration diagram showing an example in which the air conditioners 5 and 6 according to the present invention are applied to a room 1.
[0019]
The outdoor air-conditioning equipment 5 includes an air outlet unit 10, an air conditioner 14, and the like. The outlet unit 10 is attached to the ceiling 7 of the room 1, and a filter box 12 and an air conditioner 14 are connected to the outlet unit 10 via an air supply duct 16.
[0020]
The outside air taken in from the outside air intake 20 passes through the filter 18 in the filter box 12 to remove the bacteria floating in the outside air. As the filter 18, for example, an antibacterial filter having an antibacterial action is used.
[0021]
The air conditioner 14 includes temperature adjusting coils 22 and 22 and a blower 26 therein. The temperature adjustment coil 22 adjusts the air filtered by the filter box 12 to a predetermined temperature. The blower 26 sends the air conditioned by the temperature adjustment coil 22 to the air supply duct 16.
[0022]
With such a configuration, when the blower 26 is driven, the outside air is filtered by the filter box 12 and is maintained at a predetermined temperature by the temperature adjustment coil 22. The air is blown into the chamber 1 through the unit 10.
[0023]
The air supply duct 16 is provided with an air valve 28 as needed, so that the flow rate of air can be adjusted.
[0024]
The return air conditioner 6 includes an air outlet unit 10, an air inlet unit 11, a fan coil unit 30, and the like. The suction port unit 11 is attached to the ceiling 7 of the chamber 1, and a fan coil unit 30 is connected to the suction port unit 11 via an air suction duct 34. The fan coil unit 30 is connected to the outlet unit 10 attached to the ceiling 7 via an air supply duct 36. The fan coil unit 30 includes a pre-filter 40, a medium-performance filter 42, a temperature adjustment coil 44, and a blower 46 therein. The pre-filter 40 filters the air sucked from the air conditioning room 1 through the air suction duct 34 to remove dust and the like. The medium performance filter 42 filters the air sent from the pre-filter 40 to remove finer dust and the like. The temperature adjustment coil 44 adjusts the air sent from the medium performance filter 42 to a predetermined temperature. The blower 46 sends the air conditioned by the temperature adjustment coil 44 to the air supply duct 36.
[0025]
With such a configuration, when the blower 46 is driven, the air inside the chamber 1 is sucked from the suction port unit 11, the air is filtered by the pre-filter 40 and the medium-performance filter 42, and the removal of airborne bacteria and dust in the air is prevented. Done. Thereafter, the air adjusted to a predetermined temperature by the temperature adjustment coil 44 is supplied to the air supply duct 36 and blown out of the outlet unit 10 into the chamber 1.
[0026]
Further, the chamber 1 is provided with an exhaust line including the suction port unit 13, the duct 48, the filter box 15, and the exhaust fan 32. When the exhaust fan 32 is driven, the air inside the chamber 1 is filtered through the filter box 15 and then exhausted to the outside.
[0027]
FIG. 2 is a sectional view showing the outlet unit 10 installed on the ceiling 7 of the room 1. The outlet unit 10 includes a casing 50 and is installed in an air outlet 43 formed on the ceiling 7.
[0028]
The air supply duct 16 is connected to the casing 50. The air supply duct 16 is attached slightly above the side surface of the casing 50. When air-conditioning air is supplied from the air supply duct 16 to the inside of the casing 50, the swirling flow A is generated inside the casing 50 by the supplied air-conditioning air. Is done.
[0029]
A cone 52 is arranged below the casing 50, and the conditioned air supplied to the chamber 1 is diffused by the cone 52.
[0030]
A germicidal lamp 60 is provided inside the casing 50. The germicidal lamp 60 can adjust the height and angle of the germicidal lamp 60 via a mounting member (not shown).
[0031]
A reflection plate 56 is attached to the cone 52. The reflection plate 56 is attached to the upper surface of the cone 52 by, for example, a bolt (not shown). The direction of irradiation of the germicidal light can be adjusted by the reflecting plate 56, so that the germicidal light can be adjusted so that the person inside the side wall 8 and the chamber 1 is not irradiated with the germicidal light. Thereby, as shown in the outlet unit 10 of FIG. 1, when the interior material of the side wall 8 is disposed close to the side wall 8 of the chamber 1, the interior material of the side wall 8 is deteriorated by irradiation of the sterilizing light. Can be prevented. Further, the sterilization light is not directly irradiated to the eyes of the person inside the chamber 1.
[0032]
Next, the suction port unit 11 installed on the ceiling 7 will be described with reference to FIG. The suction port unit 11 includes a casing 70 and is installed in an air suction section 45 formed on the ceiling 7.
[0033]
The casing 70 is connected to the air intake duct 34. In addition, a slit-shaped suction port 72 is provided at a lower portion of the casing 70. When the air inside the casing 70 is sucked from the air intake duct 34, the air inside the chamber 1 is sucked into the inside of the casing 70 through the suction port 72.
[0034]
A germicidal lamp 80 is provided inside the casing 70. Further, a reflection plate 74 is attached to the suction port 72. The reflecting plate 74 is detachably supported by the air suction part 45 by the support member 71, and reflects the germicidal light emitted from the germicidal lamp 80. Accordingly, the irradiation direction of the germicidal light can be adjusted by adjusting the height and position of the reflection plate 74, and the germicidal light can be adjusted so that the germicidal light is not radiated to the eyes or the like inside the chamber 1. Incidentally, the reflecting plate 56 may be attached to the upper surface of the reflecting plate 74 to adjust the irradiation direction of the germicidal light.
[0035]
Here, since dust such as dust easily accumulates inside the suction port unit 11, a case 76 made of a material that does not easily attenuate germicidal light is attached around the germicidal lamp 80. Thus, it is possible to prevent fire due to heat generated by the germicidal lamp 80 and to facilitate cleaning of the germicidal lamp 80.
[0036]
The operation of the outlet unit 10 configured as described above will be described below.
[0037]
When the blower 26 of the air conditioner 14 and the blower 46 of the fan coil unit 30 shown in FIG. 1 are driven, the conditioned air is supplied from the outlet unit 10 into the room 1.
[0038]
In FIG. 2, since the swirling flow A is generated by the air-conditioning air inside the casing 50, the sterilization time of the air-conditioning air by the germicidal light can be maintained long inside the casing 50, and the sterilization of the floating bacteria of the air-conditioning air can be performed efficiently. .
[0039]
In addition, since the germicidal light from the germicidal lamp 60 is irradiated toward the upper part of the chamber 1, it is possible to sterilize airborne bacteria in the air near the ceiling 7 in the chamber 1.
[0040]
Next, the operation of the suction port unit 11 will be described below.
[0041]
When the blower 46 of the fan coil unit 30 shown in FIG. 1 is driven, air inside the chamber 1 is sucked from the suction port unit 11.
[0042]
In FIG. 3, germicidal light from a germicidal lamp 80 is applied to the inside of the casing 70, and germicidal light is applied from the gap between the reflection plate 74 and the ceiling 7 toward the upper part of the chamber 1. Thereby, it is possible to sterilize airborne bacteria in the air near the ceiling 7 in the chamber 1. Further, since the reflecting plate 74 for adjusting the irradiation direction of the germicidal light is provided, it is possible to adjust the germicidal light so as not to be irradiated to the eyes of the person inside the chamber 1.
[0043]
Note that antibacterial coating of titanium oxide (TiO2) with a photocatalyst may be applied to the inner walls of the outlet unit 10, the inlet unit 11, the air conditioner 14, the fan coil unit 30, and the like.
[0044]
The suction port unit 13 also has the same or similar configuration as the suction port unit 11 to achieve the same operation and effect.
[0045]
As shown in FIG. 2 or FIG. 3, a glass window 85 is attached to at least a part of the ceiling or the side wall of the casings 50 and 70, and sterilizing light is radiated from the glass window 85 to the ceiling, so that the ceiling can be illuminated. Can be sterilized.
[0046]
Therefore, when the room 1 is applied to a hospital room, a waiting room, an operating room, or the like, and the respective rooms are equipped with the air conditioning equipment, airborne bacteria in the air-conditioning air supplied to each room and inhaled air from each room. Since the airborne bacteria in the air can be sterilized, the number of airborne bacteria in each room can be reduced, and the mutual movement of airborne bacteria in each room can be suppressed. For this reason, hospital-acquired infection caused by airborne bacteria in the hospital can be comprehensively suppressed.
[0047]
【The invention's effect】
As described above, according to the air conditioner according to the present invention, since the inside of the outlet unit and the inlet unit is irradiated with the germicidal light, floating bacteria in the air-conditioning air supplied to the room, and air from the room, Suspended bacteria in the air can be sterilized. In addition, hospital-acquired infection caused by airborne bacteria in the hospital can be suppressed.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an example in which an air outlet unit of an air conditioner according to the present invention is applied. FIG. 2 is a configuration diagram showing an air outlet unit of an air conditioner according to the present invention. FIG. 3 is an air conditioner according to the present invention. Configuration diagram showing the suction port unit
DESCRIPTION OF SYMBOLS 1 ... Room, 5, 6 ... Air conditioning equipment, 10 ... Outlet unit, 11 ... Suction unit, 14 ... Air conditioner, 16, 36 ... Air supply duct, 34 ... Air intake duct, 52 ... Cone, 56, 74 ... Reflector, 60, 80: germicidal lamp, 72: suction port

Claims (5)

In air conditioning equipment equipped with an air outlet unit that blows out air conditioning air supplied from an air conditioner into a room,
In the outlet unit,
An air conditioner comprising a germicidal lamp for irradiating germicidal light toward the inside of the outlet unit and into the room. Around the germicidal lamp of the outlet unit,
The air conditioner according to claim 1, further comprising a reflector for adjusting an irradiation direction of the germicidal light. In air conditioning equipment equipped with a suction port unit that draws indoor air,
In the suction unit,
An air conditioner comprising a germicidal lamp for irradiating germicidal light toward the inside of the suction port unit and into the room. Around the germicidal lamp of the suction port unit,
The air conditioner according to claim 3, further comprising a reflector for adjusting an irradiation direction of the germicidal light. A method for suppressing hospital-acquired infection, comprising installing the air-conditioning apparatus according to any one of claims 1 to 4 in a hospital, and suppressing hospital-acquired infection caused by airborne bacteria in the hospital.

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