JP2551923Y2 - Clean room - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention relates to a clean room that locally secures a high clean area, and particularly to a clean room suitable for use in an operating room of a hospital.

[Prior art] In recent years, in hospital operating rooms and the like, there has been an increasing need to prevent infection from the external environment to patients by germs and the like, or biological contamination from patients to the outside as much as possible.
The number of cases in which a clean room capable of increasing the clean area in an operating room is adopted is increasing. As a specific example of the clean room, those shown in FIGS. 3 and 4 are generally well known and are in practical use.

First, a clean room A shown in FIG. 3 is entirely partitioned from the outside by a ceiling 1, walls 2, and a floor 3, and a utility area 4 having a function as an operating room is provided in this partition.
Is formed.

An air conditioner 5 is provided on one wall 2a of the utility area 4.
Is attached, and the other wall surface 2b facing the wall surface 2a
Are attached with a blower 6, each of which is integrated with a wall surface.

The air conditioner 5 is generally composed of a blowing mechanism 7, a humidifying mechanism 8, a heating mechanism 9, a cooling mechanism 10, and a filtering mechanism 11,
It purifies air taken in from the utility area 4 and the outside of the area, controls the temperature and humidity of the air to an optimum state, and sends the air to the utility area 4 again.

The air conditioner 5 is connected to the utility area 4 through an air outlet 12 provided at an upper portion and a suction port 13 provided at a lower portion.
And is communicated with the outside through an outside air suction port 14 provided at a lower portion.

The blower 6 is composed of a blower mechanism 15 and a filter mechanism 16. The blower 6 purifies air taken in from the utility area 4 and sends it out to the utility area 4 again.

Similarly, the blower 6 is communicated with the utility area 4 via an upper outlet 17 and a lower inlet 18.

In the utility area 4, the floor 3
An operating table 19 is installed in the center of the ceiling 1, while an illuminating device 21 having a pair of operating lights 20, 20 movably in any direction is attached to the center of the ceiling 1. Are attached, and have a function required as an operating room.

In such a clean room A, air is introduced into the air conditioner 5 from the utility area 4 and the outside of the area by the suction port 13 and the outside air suction port 14, and the air is heated by the humidifying mechanism 8, the heating mechanism 9, and the cooling mechanism 10. After that, fine dust floating in the air is collected and purified by the filtering mechanism 11, and is blown out from the outlet 12 toward the utility area 4. The clean air blown out to the utility area 4 flows in a substantially layered manner in one direction from the vicinity of the ceiling 1 toward the floor 3, and is again taken into the air conditioner 5 through the suction port 13.
The clean air whose temperature and humidity are optimally controlled is blown out again from the outlet 12 to the utility area 4.

Similarly, air is taken into the blower 6 from the utility area 4 by the suction port 18, and fine dust floating in the air is collected and purified by the filtering mechanism 16. It is blown out toward. The clean air blown out to the utility area 4 flows in one direction from the vicinity of the ceiling 1 to the floor 3 and the suction port.
By 18, it is taken into the blower 6 again, becomes clean air, and is blown out again from the outlet 17 to the utility area 4.

As described above, the utility area 4 of the clean room A can be used as a surgical field in which room air is maintained at a high degree of cleanliness.

The clean room B shown in FIG. 4 is entirely partitioned from the outside by a ceiling 31, a wall 32, and a floor 33 similarly to the clean room A described above, and a utility area 34 having a function as an operating room is provided in this partition. Is formed. An air conditioner 35 is installed outside the utility area 34.

The air conditioner 35 purifies the air taken in from the plurality of utility areas 34, 34, ... and the outside of the area, controls the temperature and humidity of the air to an optimal state, and sends the air to the utility area 34 again. Utility area 3 such as a hospital basement
It is installed in an air-conditioning machine room (not shown), etc., isolated from 4,34, ...

The air conditioner 35 includes a blower 36, an air conditioner 37, and two air supply units 38, 38. A plurality of filter members 39, 39 for air purification are attached to the bottom of the air supply unit 38, and an air supply outlet 40 is formed below the filter members 39, 39.

The air conditioner 35 is communicated with the utility area 34 via outlets 40, 40 of two air supply units 38, 38 provided on the ceiling 31 and a plurality of suction ports 41, 41 below the wall 32. And is in communication with the outside through an outside air inlet 42.

In the utility area 34, the floor 33
An operating table 43 is installed in the center of the ceiling, and a pair of operating lights 44, 44 movable in an arbitrary direction is provided in the center of the ceiling 31.
A lighting device 45 is attached, and a large number of lighting tools 46, 46,... Are attached to the ceiling 31, so that the ceiling 31 has a function necessary for an operating room.

Similarly, in such a clean room B, air is introduced into the air conditioner 35 from the utility area 34 and the outside of the area through the suction ports 41, 41 and the outside air suction port 42, and the temperature and humidity are controlled by the air conditioner 37. The state is controlled to an optimum state, and then fine dust floating in the air is collected and purified by the filter medium 39 of the air supply unit 38, and is blown out from the outlets 40, 40 to the utility area 34.

The clean air blown out to the utility area 34 flows in a substantially layered manner in one direction from the ceiling 31 to the floor 33, and the suction air 4
The air is re-introduced into the air conditioner 35 by 1, 41 and becomes clean air whose temperature and humidity are optimally controlled, and is blown out again from the outlets 40, 40 to the utility area 34.

As described above, the utility area of clean room B
34 can be used as a surgical field where the air in the room is maintained at a high degree of cleanliness.

[Problem to be Solved by the Invention] In the conventional clean room A, the clean air flows from the two opposed outlets 12 and 17 to the utility area 4.
Of the utility area 4 collides with each other at the center of the utility area 4 to reduce the wind speed, and the center area mixes with the contaminated air that has stayed before and forms a stagnation area. There was a problem.
Further, while circulating in the utility area 4, both airs are mixed at the boundary area between the clean air and the contaminated air,
There was also a problem that contaminated air was diffused.

These stagnation areas are also observed in the central part of the utility area 4, and there is a problem that it is difficult to locally secure a high-purity area because the lighting apparatus 21 forms a stagnation area by disturbing airflow. Was.

Further, in the conventional clean room B, since the air conditioner 35 is installed in an air conditioning machine room or the like outside the utility area 34, a space for the air conditioning machine room or the like is required, and the space cannot be saved. there were. In the case where clean air is supplied to a plurality of operating rooms, these operating rooms are collectively air-conditioned, so that there is a problem that it is difficult to control each operating room individually. . In addition, since the contaminated air is induced in the boundary area between the clean air and the contaminated air below the outlet 40, the cleanliness of the clean air is reduced, and it is difficult to secure a locally high clean area. was there. In this case, in order to locally increase the clean area, it is necessary to blow clean air at a strong wind speed over a wide range, and this strong wind is a great hindrance to performing surgery, which is extremely difficult to achieve.

In addition, since the air outlet 40 cannot be provided in a portion of the ceiling 31 where the lighting device 45 is mounted, the air flow is easily disturbed below the air outlet 40, and a stagnation area of air is easily formed. Also lighting equipment
Since 45 disturbs the air flow, the laminar flow of the clean air is disturbed below, and it is easy to attract surrounding contaminated air, and there is a problem that it is difficult to secure a high clean area.

As a modification of the conventional clean room B, an air conditioner 35 is provided above the ceiling 31. In this case, the air conditioner 35 is directly mounted on the ceiling 31.
Because it will be installed and operated, it is impossible to install the air conditioner 35 unless the ceiling height is high,
Further, since the air conditioner 35 and the air outlet 40 are close to each other, it is difficult to reduce the noise level.

As described above, the conventional clean rooms A and B have various problems, and the need for immediate improvement has been urgent.

The purpose of this invention is to solve the above various problems,
In particular, it is an object of the present invention to provide a clean room capable of favorably maintaining a high cleanliness area in an operation field.

[Means for Solving the Problems] In order to solve the above problems, the clean room of the present invention blows clean air downward from an air supply unit provided at a central portion of a ceiling surface, and suctions provided at a lower portion of a wall surface. A clean room in which a room is maintained in a clean state by sucking room air from a mouth, wherein a shield extending vertically downward around a bottom of the air supply unit is provided, and a vertically lower portion of the clean air is provided inside the shield. And a plurality of openings for blowing clean air in the horizontal direction along the ceiling surface at a position above the rectifying plate of the shield. It is characterized by.

[Operation] In the clean room according to the present invention, a shield extending vertically downward is provided around the air supply unit, thereby suppressing the attraction of contaminated air from the surroundings. In addition, by providing a rectifying plate for rectifying the air flow uniformly inside the shield, the air flow in the region below the air supply unit is made uniform, and thereby a local region immediately below the air supply unit is formed. Particularly, it is maintained in a highly clean state.

In addition, by providing a plurality of openings at positions above the rectifying plate of the shield, clean air is blown outward from the openings in the horizontal direction, and a clean area is secured around the outer periphery of the shield. And prevent stagnation of air near the ceiling surface.

[Embodiment] Before describing an embodiment of the present invention, a clean room C on which the present invention is based will be described with reference to FIG.

The clean room C is equipped with an air conditioner S for purifying indoor air and adjusting temperature and humidity.
A utility area 54, which is partitioned from the outside world by a wall 51, a wall 52, and a floor 53, and has a function as an operating room in this partition.
Is formed.

The air conditioner S is generally constituted by an air conditioner 55, a blower 56, and an air supply 57.

The air conditioner 55 is attached to one wall surface 52a of the utility area 54, and has a structure integral with the wall surface. A plurality of air conditioners 55 may be provided depending on the required cleanliness.

The air conditioner 55 includes a blowing mechanism 61, a humidifying mechanism 62, a heating mechanism 63,
It is composed of a cooling mechanism 64 and is a utility area.
The temperature and humidity of air taken in from the outside of the area and the outside of the area are controlled to an optimum state, and the air is sent to the air supply unit 57.

The air conditioner 55 communicates with the utility area 54 via a lower suction port 65, and communicates with the outside via a lower outside air suction port 66. The upper outlet 67 is connected to one end 68a of a substantially L-shaped elongate duct 68 extending toward the center of the ceiling 51.
8b is connected to the air supply unit 57.

The blower 56 is provided on the other wall 52b of the utility area 54.
And is integrated with the wall. A plurality of the blowers 56 may be provided depending on required cleanliness.

This blowing section 56 is substantially constituted by a blowing mechanism 69,
Air supplied from the utility area 54
To 57. The blower 56 is provided with a lower suction port 70.
Is communicated with the utility area 54 via the. The upper outlet 71 is connected to one end 72a of a substantially L-shaped elongated duct 72 extending toward the center of the ceiling 51,
The other end 72b of the duct 72 is connected to the air supply unit 57.

The air supply unit 57 is attached to the center of the ceiling 51, and purifies air sent from the air conditioning unit 55 and the blowing unit 56,
It is blown into the utility area 54 again.

A plurality of outlets 73, 73,... Are formed at the bottom of the air supply unit 57, and a plurality of filter media 74, 74,. Have been.

The filter material 74 collects fine dust floating in the air,
Purifies air, for example, HEPA filter or
A ULPA filter or the like is preferably used.

A shield 75 extending vertically downward is provided around the bottom of the air supply unit 57.

The shield 75 is a frame having a rectangular cross section,
The clean air blown vertically downward from the outlets 73, 73,... Of the air supply unit 57 is provided so as not to attract surrounding contaminated air, and the main part is, for example, a wall material such as a wall panel or a steel plate. Etc. A current plate 76 is provided horizontally above the shield 75.

The flow straightening plate 76 is provided in accordance with the required clean area in order to make the air flow of the clean air in the region below the air supply unit 57 uniform laminar flow. A punching plate having a large number of insertion holes formed on its surface, a rectifying grid in which a plurality of crosspieces are combined vertically and horizontally, and the like are preferably used.

In the utility area 54, the floor 53
An operating table 77 is installed at the center of the ceiling 51, while an illuminating device 79 having a pair of operating lights 78, 78 movably in any direction is attached to the center of the ceiling 51. Are mounted, and have a function as an operating room.

In the clean room C configured as described above, air is taken into the air conditioning unit 55 from the utility area 54 and the outside of the area through the suction port 65 and the outside air suction port 66, and the humidifying mechanism 62, the heating mechanism 63, and the cooling mechanism The temperature and humidity are controlled to an optimum state by the filter 64, and then the fine particles floating in the air are collected and purified by the filter media 74, 74, and are directed from the outlets 73, 73 to the vertically lower utility area 54. Is blown out.

This clean air becomes a uniform laminar airflow by the flow straightening plate 76, and flows downward by the shielding plate 75 while maintaining high cleanliness without attracting surrounding contaminated air. The clean air supplied to the utility area 54 flows in a laminar flow toward the floor 53, is taken into the air conditioning unit 55 again through the suction port 65, and the clean air whose temperature and humidity are optimally controlled is again blown out. 73, 73 are blown out to the utility area 54.

Further, the air taken into the blower section 56 from the utility area 54 by the suction port 70 is mixed with the air blown from the air conditioner section 55 in the air supply section 57, and the filter media 74, 74
From the outlet 73, 73 to the utility area 5
It is blown out to 4.

Thus, the air conditioner S
Is filled with clean air whose temperature and humidity are optimally controlled.

As described above in detail, since the clean room C is provided with the shield 75 extending vertically downward around the bottom of the air supply unit 57, the clean room C is blown vertically downward from the outlets 73 of the air supply unit 57. The clean air flows downward without contacting the surrounding contaminated air. Therefore, it is possible to keep flowing down while maintaining high cleanliness without inviting contaminated air. In addition, since the rectifying plate 76 for uniformly rectifying the air flow is provided inside the shield 75, the air supply unit 57 is provided.
The air flow in the area below the air flow is made uniform laminar flow, and the turbulence of the air flow due to a part that does not blow out air, such as a mounting portion of an operating light, is reduced.

As described above, it is possible to effectively prevent the contaminated air from being attracted from the periphery to the operation field, and to quickly discharge the contaminants generated in the operation field to the outside of the operation field, thereby locally cleaning the operation field with a highly clean area. can do.

The air conditioning unit 55 and the air blowing unit 56 of the air conditioner S
52 and the air supply unit 57 are integrated with the ceiling 51, so there is no need to prepare an air-conditioning machine room, etc. as in the past. Equipment work such as construction is not required.

Further, since only the air supply unit 57 needs to be placed on the ceiling, the ceiling height can be kept lower than that of the conventional configuration in which the air conditioner 35 is placed above the ceiling 31. Also,
The noise level can be reduced by separating the air conditioner 55, the blower 56 and the air supply 57.

Therefore, a highly clean area can be locally secured particularly in the utility area 54, particularly in a region immediately below the air supply unit 57. In particular, a surgical field in a hospital operating room or the like can be a locally highly clean area. A clean room that can be provided can be provided.

Although the above-described clean room C has the above advantages, since the clean air is blown mainly downward from the air supply unit 57 at the center of the ceiling surface,
There remains a problem that air stagnation near the ceiling cannot be sufficiently eliminated. The present invention is based on the above-mentioned clean room C.
This is intended to eliminate the stagnation of air near the ceiling 51 while maintaining the basics. Hereinafter, a clean room D according to an embodiment of the present invention will be described with reference to FIG. Since the clean room D of this embodiment has the same basic configuration as the clean room C described above, the same components as those shown in FIG. The same reference numerals are given successively, and the configuration, operation, and effect of the same element will not be described.

The configuration of the clean room D that is different from that of the clean room C will be described.

This clean room D is provided with a shield D75 formed of a frame extending vertically downward around the bottom of the air supply unit D57 and having a rectangular cross section, and a rectifying plate D76 is horizontally provided at an upper portion inside the shield D75. The shield D75 is provided with a plurality of openings 91, 91,... For blowing out clean air in a horizontal direction at a position above the straightening plate D76.

The size and number of the openings 91 are determined in consideration of various conditions such as the size of the utility area D54, the amount of clean air, and the wind speed.

In the clean room D configured as described above, the air flows from the utility area D54 and the outside of this area to the air conditioner DS through the suction ports D65 and D70 and the outside air suction port D66.
The temperature and humidity are controlled to an optimal state, and then fine dust floating in the air is collected and purified by the filter media D74, D74, and the outlets D73, D73
Is blown vertically downward.

Most of this clean air becomes a uniform laminar airflow due to the flow straightening plate D76, and flows vertically downward while maintaining high cleanliness without inviting surrounding contaminated air by the shielding plate D75.
A part is blown outward from the openings 91, 91,... Provided in the shielding plate D75 in the horizontal direction along the ceiling surface.

The clean air blown out from the opening 91 flows in a laminar flow from the vicinity of the ceiling D51 toward the suction ports D65 and D70, and the suction air D65 and D
The air is re-introduced into the air conditioner DS by 70, and it becomes clean air whose temperature and humidity are optimally controlled.
D73 will be blown out again from D73 to utility area D54.

As described above, in the clean room D, the shield D75 provided around the bottom of the air supply unit D57.
Are provided above the rectifying plate D76, a plurality of openings 91, 91,... For blowing clean air are provided.
Clean air is blown outward from the horizontal direction, and contaminated air in the outer peripheral portion of the shield D75 can be dissipated, and the periphery of the shield D75 can be kept clean, and at the ceiling surface Air stagnation can be effectively eliminated. Therefore, the ventilation efficiency of the outer peripheral portion of the shield D75 can be improved, and the air cleanliness can be improved.

[Effects of the Invention] In the present invention, clean air is blown downward from an air supply unit provided at the center of the ceiling surface, and indoor air is suctioned from a suction port provided at a lower part of the wall surface, thereby purifying the indoor air. In the clean room to be maintained, a shield extending vertically downward around the bottom of the air supply unit is provided, so that clean air blown vertically downward from the air supply unit is contaminated with surrounding contaminated air. It will flow downward without contact. Therefore, it is possible to keep flowing down while maintaining high cleanliness without inviting contaminated air. In addition, since a rectifying plate for rectifying the air flow uniformly is provided inside the shield, the air flow in the area below the air supply unit is made uniform laminar flow, and lighting equipment such as an operating light and other lighting equipment. The turbulence of the airflow due to the part that does not blow out air, such as the installation part of the ceiling installation equipment, is reduced.

As described above, in the present invention, the area immediately below the air supply unit can be locally maintained with particularly high cleanliness. Therefore, when applied to an operating room, for example, the operating field set at the center of the operating room Can be maintained particularly high in cleanliness. In other words, it is possible to effectively prevent attraction of contaminated air from the periphery to the operating field, and to quickly discharge contaminants generated in the operating field to the outside of the operating field, thereby making the operating field locally a highly clean area. be able to.

Therefore, a high clean area can be locally secured in the utility area, and in particular, a clean room in which the operating field can be a local high clean area in a hospital operating room or the like can be provided.

Moreover, in the clean room of the present invention, a plurality of openings are provided at positions above the rectifying plate of the shield, so that clean air is blown outward from the openings to the outside in the horizontal direction, whereby the ceiling is opened. Air stagnation in the vicinity of the surface can be eliminated, and contaminated air in the outer peripheral portion of the shield can be dissipated, and a clean area can be secured.
Therefore, the ventilation efficiency of the outer peripheral portion of the shield can be improved, and the air cleanliness can be improved.

[Brief description of the drawings]

FIG. 1 is a sectional view for explaining a clean room on which the present invention is based, FIG. 2 is a sectional view of a clean room showing one embodiment of the present invention, and FIGS. 3 and 4 show a conventional clean room. FIG. 3 is a cross-sectional view of a clean room in which an air conditioner and a blower are independently attached to a wall surface, and FIG. 4 is a cross-sectional view of a clean room in which an air conditioner is independently installed in an air-conditioning machine room or the like. . D: clean room, DS: air conditioner, D51: ceiling, D54: utility area, D57: air supply unit,
D65 …… Suction port, D66 …… Outside air suction port, D70 …… Suction port, D
73 ... Outlet, D74 ... Filter, D75 ... Shield, D76 ...
... Rectifier plate, 91 ... Opening.

Claims (1)

(57) [Scope of request for utility model registration] 1. A clean room in which a clean air is blown downward from an air supply unit provided at a central portion of a ceiling surface and a room is maintained in a clean state by sucking room air from a suction port provided at a lower portion of a wall surface. A shield that extends vertically downward around the bottom of the air supply unit is provided, and a rectifying plate that evenly rectifies the flow of clean air vertically downward is provided inside the shield, and the shield of the shield is provided. A clean room, wherein a plurality of openings for blowing clean air in a horizontal direction along a ceiling surface are provided at a position above the current plate.