JP2001108269A - Air cleaning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure cleanliness of air in an operating room in a good condition. SOLUTION: In an air cleaning system 10A, provided with a dust collecting filter 14 and air outflow ports 15, arranged on the ceiling surface 11 of an operating room 10 and the lower parts of the same respectively, to conduct air, cleaned by the dust collecting filter, to flow toward the air outflow ports in the operating room, air cleaning devices 16 for collecting and cleaning dust in air in positions whereat the air, not riding on the streams A of air from the dust collecting filter toward the air outflow ports, is stagnated, are arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifying system for ensuring an appropriate level of air cleanliness.

[0002]

2. Description of the Related Art Conventionally, in a room to be cleaned, a dust collecting filter is arranged at a ceiling of the room to be cleaned and an air outlet is arranged at a lower portion, and air purified by the dust collecting filter is directed toward the air outlet. By flowing in the room to be cleaned, the room to be cleaned is cleaned.

[0003]

However, in the room to be cleaned as described above, there is a space in which purified air is not supplied and air stays. In this space, dust particles and bacteria are suspended. Therefore, the cleanliness of the room to be cleaned may be reduced as a whole.

[0004] An object of the present invention has been made in view of the above circumstances, and an object of the present invention is to provide an air purifying system capable of ensuring good cleanliness of air in a room to be cleaned.

[0005]

According to a first aspect of the present invention, there is provided a dust collecting filter provided at a center of a ceiling of a room to be cleaned and for purifying air and supplying the air to the room to be cleaned. At least three or more air purifiers provided at substantially equal intervals on the surrounding ceiling side, and a plurality of air outlets provided on the floor side of the room to be cleaned and exhausting air in the room to be cleaned, The air purifier is characterized in that the air in the room to be cleaned is sucked in from below and blown out to the side.

According to a second aspect of the present invention, in the first aspect of the invention, the air purifier is provided on a wall surface side of the chamber to be cleaned and blows purified air in a direction excluding the wall surface side. It is assumed that.

According to a third aspect of the present invention, in the second aspect, the air purifier is provided for each wall surface of the room to be cleaned.

According to a fourth aspect of the present invention, in the second aspect of the present invention, the air purifier is provided on a side where different wall surfaces of the room to be cleaned are in contact with each other.

According to a fifth aspect of the present invention, in the third or fourth aspect of the present invention, the dust collection filter has a projected area that covers a body to be cleaned disposed on the floor of the room to be cleaned. It is assumed that.

[0010] The invention according to claim 6 is the invention according to claims 1 to 5.
In the invention described in any one of the above, each of the air outlets and the air purifier are located substantially opposite to each other.

The first to sixth aspects of the present invention have the following effects.

A dust collecting filter provided at the center of the ceiling of the chamber to be cleaned and supplying air to the chamber after purifying air; and at least three or more filters provided at substantially equal intervals on the ceiling side around the dust collecting filter. An air purifier, and a plurality of air outlets provided on the floor side of the room to be cleaned and exhausting the air in the room to be cleaned. The air purifier is arranged at a position where the air stays without riding on the air flow from the dust collection filter to the air outlet, and the air purifier collects the dust present in the accumulated air. Since the air is purified by dusting, the cleanliness of the air in the entire room to be cleaned (operating room of a hospital) can always be kept good.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing an operating room of a hospital as a room to be cleaned to which the first embodiment of the air cleaning system according to the present invention is applied. FIG. 2 is a plan view showing the operating room in FIG.

As shown in FIGS. 1 and 2, an operating room 10 of a hospital as a room to be cleaned to which the air cleaning system 10A according to the present embodiment is applied is formed in a rectangular parallelepiped or cubic shape, and a ceiling surface 11 is formed. The four wall surfaces 13 are arranged adjacent to each other between the floor and the floor surface 12. Floor 12
An operating table 24 corresponding to the body to be cleaned is installed at the center position in plan view.

At the center of the ceiling 11 of the operating room 10, a dust filter 14 (eg, HE
PA (high efficiency partic
ate air filter)).
Moreover, the corners 17A, 17B, 17 of the wall surface 13 surrounding the four directions
An air outlet 15 is formed in C and 17D on the floor surface 12 side.

The air after the dust is collected and purified by the dust collecting filter 14 is supplied around the operating table 24 and then flows along the floor 12 toward the air outlet 15. The inside of the operating room 10 is cleaned. The air (contaminated air) flowing out of the air outlet 15 is discharged into the outside air through another dust filter (not shown), or is guided to the upstream side of the dust filter 14 and circulated. ing.

As shown in FIG. 2, the dust collecting filter 14 installed on the ceiling surface 11 has a square shape in plan view. The ceiling surface 11 has an air cleaning device 16 that collects dust (including dust particles, bacteria such as pathogenic bacteria (virus, bacteria, Staphylococcus aureus, etc.)) in the air.
Are installed. These air purifiers 16
Is disposed at a position where the air is easily deviated from the flow A (FIG. 1) of the air supplied from the dust collecting filter 14 and heading toward the air outlet 15.

For example, in the present embodiment, each air purifying device 16 is disposed on the ceiling surface 11 outside the dust filter 14 as shown in FIG.

Each air purifying device 16 sucks air from below, and moves in three directions except for the side facing the wall surface 13 in FIG.
As shown by the arrow B, air (clean air) is blown out almost horizontally. The air blown out from the air cleaning device 16 joins the flow of air (arrow A) flowing from the dust filter 14 to the air outlet 15 and flows out of the room from the air outlet 15.

As described above, the air inlet 18 for sucking air into the air cleaning device 16 is provided on the bottom surface of the case 17 of the air cleaning device 16 as shown in FIGS. Further, as described above, the air outlets 19A and 19 for blowing air (clean air) from the air cleaning device 16.
B and 19C are individually opened on the case 17 on three adjacent side surfaces (surfaces intersecting the bottom surface) which are different from each other by approximately 90 degrees in plan view. The other side of the case 17 faces the wall 13, and the air cleaning device 16 is installed on the ceiling 11.

As described above, this air cleaning device 16
Air inlet 18 and air outlets 19A, 19B and 1
As shown in FIG. 5, in the case 17 in which 9C is formed,
A blower fan 20, electrodes 21A, 21B, 21C, a dust collecting filter (for example, HEPA) 22A as a purifying means,
22B and 22C and an ozone generator 2 as a sterilizing means
3 (negative electrode or negative ion generator) and an opening / closing device 35 as closing means are provided and configured. Case 17
The bottom surface is specifically composed of a decorative plate 25 (FIG. 3) fitted and fixed to the lower part of the side surface of the case 17, and the air suction port 18 is opened at a central position of the decorative plate 25 (FIG. 3). (Fig. 4).

The blower fan 20 is a centrifugal blower type fan (turbo fan, sirocco fan, etc.)
The suction side is installed in the case 17 at a position corresponding to the air suction port 18. When the blower fan 20 is rotated by the fan motor 26, the air in the operating room 10 is sucked through the air suction port 18 from below the air purifier 16, and is opposed to the blowout side of the blower fan 20 in the case 17. Dust collection filters 22A, 22
The air flows a, b, and c (FIG. 5) are formed in a spiral shape toward each of B, 22C.
After passing through 2B, 22C, the air outlets 19A, 19B, 1
Air is blown into the operating room 10 from 9C.

The electrodes 21a, 21b, and 21c are located in an air path connecting the air inlet 18 and the air outlets 19A, 19B, and 19C.
9B and 19C, and the air outlet 19
In the flows a, b, and c of the air flowing to A, 19B, and 19C, they are provided near the boundaries of the respective dust collection filters.

By providing the electrodes 21a, 21b, and 21c at such positions, the electrodes 21a, 21b, and 21c are provided.
The dust particles and bacteria charged in c can be distributed almost uniformly to the dust collection filters 22A, 22B, and 22C by utilizing the effect of diffused air blowing to the surroundings by the centrifugal air blowing fan 20.

The above dust collecting filters 22A, 22B, 22C
Are removably attached to the inside of the side surface of the case 17 corresponding to the air outlets 19A, 19B, and 19C, respectively.
Each of the dust collection filters 22A, 22B, and 22C is HEPA made of, for example, glass fiber.

These electrodes 21A, 21B, 21C are
As shown in FIG. 8, a wire-shaped (or needle-shaped) positive electrode 28 and a plate-shaped negative electrode 29 are alternately arranged on a square frame 27. As shown in FIG.
When a voltage is applied to the electrodes 1A, 21B, and 21C, positive ions are released from the positive electrode 28, and these electrodes 21
Dust particles 3 in the air passing near A, 21B, 21C
0 and bacteria such as pathogenic bacteria 31 are positively charged.

As shown in FIG. 9 and FIG.
The dust particles 30 and the pathogenic bacteria 31 charged in A, and the non-charged pathogenic bacteria 31 attached to the charged dust particles 30 ride on the air flow a and collect the dust filter 2.
2A, and is collected by the dust collecting filter 22A. Similarly, the dust particles 30 and the pathogenic bacteria 31 charged at the electrode 21B, and the uncharged pathogenic bacteria 31 attached to the charged dust particles 30 ride on the airflow b to the dust collecting filter 22B. This dust collection filter 22
Collected by B. Further, the dust particles 30 and the pathogenic bacteria 31 charged by the electrode 21C, and the uncharged pathogenic bacteria 31 attached to the charged dust particles 30 ride on the air flow c to reach the dust collecting filter 22C. Are collected by the dust collecting filter 22C.

Generally, bacteria (viruses (0.006 to
0.06 μm), bacteria (0.3-30 μm), Staphylococcus aureus (0.8-1.0 μm)) 10-15 μm
In many cases, HEPA (having the ability to collect 0.3 μm particles) can be collected by HEPA (having the ability to collect 0.3 μm particles), which adheres to m dust, 10-100 μm pollen, and the like.

At the side of the case 17, the air outlet 1
The electrical component box 32 is installed inside the remaining side surface on which 9A, 19B, and 19C are not formed. The ozone generator 23 is arranged at an arbitrary position in the case 17, for example, in the middle of the flow of air flowing from the blower fan 20 to the electrical box 32.

The ozone generator 23 is connected to the electrode 21
A, 21B and 21C, a wire-shaped (or needle-shaped) negative electrode 33 and a plate-shaped positive electrode 34 are provided in the frame body as shown in FIG.
As shown in FIG. In the ozone generator 23, the negative electrode 33 generates ozone and negative ions when energized. These ozone and negative ions function as sterilizing substances and diffuse into the case 17 to sterilize or antibacterial bacteria such as the pathogenic bacteria 31 collected on the dust filters 22A, 22B and 22C.

The above-mentioned electrodes 21A, 21B, 2 shown in FIG.
1C is the positive electrode 28 only when the fan 20 is rotating.
Is applied, and the dust particles 30 and the pathogenic bacteria 31 are configured to be positively charged. In addition, ozone generator 2
Numeral 3 is configured to operate by applying the negative electrode 33 when the blower fan 20 is stopped, to generate ozone and negative ions.

Incidentally, the blower fan 20 may be rotated slightly to promote the diffusion of ozone into the case 17. In addition, since ozone naturally disappears after a certain period of time, there is no particular need to collect ozone if safety during this period can be ensured.

The opening / closing device 35 is installed inside the decorative board 25 corresponding to the air suction port 18 in the case 17 as shown in FIGS.
Can be opened and closed. That is, as shown in FIGS. 6 and 7, the opening / closing device 35 has a large number of blades 37 arranged inside a rectangular frame 36, and each blade 37 is connected to the frame 36 via their pivots 38. The pin 39 of each blade 37 is loosely fitted in the hole 41 of the operation plate 40. On the other hand, inside the decorative plate 25, for example, a stepping motor 42 with a built-in reduction gear is installed, and an arm (not shown) having an operation pin 43 implanted is fixed to the axis of the stepping motor 42. , Operation plate 40
Is loosely fitted into the long hole 45 of the intermediate plate 44 fixed to the intermediate plate 44.

Therefore, when the stepping motor 42 rotates in a predetermined range in either the forward or reverse direction, the operation plate 43 is moved through the operation pin 43 and the intermediate plate 44.
Reciprocates in the direction of arrow C in FIG. 6, whereby each blade 37 rotates about a pivot 38 within a predetermined range,
The opening / closing device 35 can open and close the air suction port 18. The opening / closing device 35 is configured to open the air suction port 18 during the rotation operation of the blower fan 20 and close the air suction port 18 during stoppage of the blower fan 20 or generation of ozone.

By closing the opening / closing device 35,
The dust in the case 17 is prevented from directly flowing down from the air suction port 18 to the operating room 10, and the ozone is prevented from diffusing into the operating room 10 via the air suction port 18 when ozone is generated.

The air outlets 19A, 19B, 19C
Are provided with dust collection filters 22A, 22B, and 22C, so that dust or ozone does not come out of the air outlets 19A, 19B, and 19C, but ozone is released when the amount of generated ozone is increased. In order to prevent this, a structure may be adopted in which an opening / closing device such as that provided in the air suction port 18 is provided to enhance the tightness of the case 17.

Next, the operation will be described.

When air (clean air) is being blown from the dust collecting filter 14 in the operating room 10, the blower fan 20 of the air cleaning device 16 rotates, and at this time, the electrodes 21A, 21B, 21C operates,
The ozone generator 23 stops, and the opening / closing device 35 opens the air suction port 18. Therefore, the air stagnating in the operating room 10 is sucked from the air suction port 18 of the air purifying device 16, and the dust particles 30 and the pathogenicity are collected by the electrodes 21A, 21B and 21C and the dust collecting filters 22A, 22B and 22C. Bacteria 31 are collected.

When clean air is not being blown from the dust collecting filter 14 in the operating room 10, the blower fan 20 of the air purifying device 16 is stopped, the electrodes 21A, 21B and 21C are opened (application is stopped), and ozone The generator 23 operates, and the opening / closing device 35 closes the air suction port 18. Therefore, at this time, ozone and negative ions generated from the ozone generator 23 do not leak out of the air cleaning device 16 through the air suction port 18, and the ozone and negative ions collect dust in the air cleaning device 16. Bacteria such as the pathogenic bacteria 31 collected on the filters 22A, 22B and 22C are sterilized or antibacterial.

As described above, according to the above embodiment, the following effects can be obtained.

An air purifier 16 is arranged at a position where the air stays without riding on the flow A of the air flowing from the dust collecting filter 14 to the air outlet 15, and the air purifier 16 is provided with the dust existing in the stayed air. Since the particles 30 and the pathogenic bacteria 31 are collected to purify the air, the cleanliness of the air in the entire operation room 10 can always be kept good.

In the above embodiment, the switching device 35
Is provided at a position corresponding to the air suction port 18. However, the opening and closing device 35 is provided with the air outlets 19A, 19B, 1B.
9C may be provided at the corresponding position. Further, the ozone generator 23 may generate one of ozone and negative ions. Further, the opening / closing device 35 may draw out the sheet wound around the roller from the roller, close the air suction port 18, rewind the sheet to the roller, and open the air suction port 18.

FIG. 11 is a side sectional view showing an operating room of a hospital as a room to be cleaned to which the second embodiment of the air cleaning system according to the present invention is applied. FIG. 12 is a plan view showing the operating room in FIG. In the second embodiment, the same parts as those in the first embodiment will be omitted from description by denoting the same reference numerals.

An operating room 50 as a room to be cleaned to which the air cleaning system 50A according to the second embodiment is applied.
Then, in a plan view, at positions corresponding to the corners 17A, 17B, 17C, 17D of the four wall surfaces 13 along the circumferential direction of the outer periphery of the dust collection filter 14 outside the outer periphery of the dust collection filter 14. An air cleaning device 16 is provided.

Also in this case, since the air purifying device 16 is disposed at a position where the air stays without riding on the flow of the air flowing from the dust collecting filter 14 toward the air outlet 15, the first embodiment is described. An effect similar to the effect of the embodiment is exerted.

Next, a third embodiment (not shown) of the air cleaning system according to the present invention will be described below.

In the third embodiment, in a plan view of the operating room, the dust collecting filter 14 is provided at the center of the ceiling surface 11.
Are arranged, and corner portions 17 adjacent to each other on the wall surface 13 are arranged.
An air outlet 15 is formed at a central position between A, 17B, 17C, and 17D, and corresponds to the air outlet 15 outside the outer periphery of the dust filter 14 along the circumferential direction of the outer periphery of the dust filter 14. An air cleaning device 16 is arranged at the position.

Further, a fourth embodiment (not shown) of the air cleaning system according to the present invention will be described below.

In the fourth embodiment, in a plan view of the operating room, the dust collecting filter 14 is provided at the center of the ceiling surface 11.
Are arranged, and corner portions 17 adjacent to each other on the wall surface 13 are arranged.
An air outlet 15 is formed at a central position between A, 17B, 17C, and 17D, and each corner 17 is formed outside the outer periphery of the dust filter 14 along the circumferential direction of the outer periphery of the dust filter 14.
The air cleaning devices 16 are arranged at positions corresponding to A, 17B, 17C, and 17D.

Also in these third and fourth embodiments, the air cleaning device 16 is arranged at a position where the air stays without riding on the flow of the air flowing from the dust filter 14 toward the air outlet 15. Therefore, the same effects as those of the first embodiment can be obtained.

Although the present invention has been described based on the above embodiment, the present invention is not limited to this.
For example, in the above-described embodiment, the case of an operating room in a hospital has been described as a clean room, but a clean room for manufacturing semiconductors, recording media, and the like may be used.

[0053]

As described above, according to the air cleaning system of the present invention, a dust collection filter provided at the center of the ceiling of the room to be cleaned and for purifying the air and then supplying the air to the room to be cleaned is provided.
At least three or more air purifiers provided on the ceiling side around the dust collecting filter at substantially equal intervals; and a plurality of air outlets provided on the floor side of the room to be cleaned and exhausting air in the room to be cleaned. And the air purifier sucks the air in the room to be cleaned from below and blows it to the side,
Good cleanliness of the air in the clean room can be ensured.

[Brief description of the drawings]

FIG. 1 is a side view showing an operating room of a hospital as a room to be cleaned to which a first embodiment of an air cleaning system according to the present invention is applied.

FIG. 2 is a plan view showing the operating room in FIG. 1;

FIG. 3 is a side view showing the air cleaning device of FIG. 1;

FIG. 4 is a view taken in the direction of the arrow IV in FIG. 3;

FIG. 5 is a view in which a decorative plate is omitted in FIG. 4;

FIG. 6 is a front view showing the opening and closing device of FIG. 4;

FIG. 7 is a side view showing the opening / closing device of FIG. 6;

FIG. 8 is a perspective view showing the charger of FIG. 5;

9 is a diagram illustrating the principle of the charger of FIG.

10 is a diagram showing the principle of the ozone etc. generator of FIG.

FIG. 11 is a side sectional view showing an operating room of a hospital as a room to be cleaned to which the second embodiment of the air cleaning system according to the present invention is applied.

FIG. 12 is a plan view showing the operating room in FIG. 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Operating room (room to be cleaned) 10A Air cleaning system 11 Ceiling surface 12 Floor surface 13 Wall surface 14 Dust collection filter 15 Air outlet 16 Air cleaning device 17 Case 17A, 17B, 17C, 17D Corner 18 Air inlet 19A, 19B , 19C Air outlet 30 Dust particles 31 Pathogenic bacteria A Air flow from dust filter to air outlet 50A Air purification system

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masashi Hashimoto 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Toshio Nakayama 2-chome Keihanhondori, Moriguchi-shi, Osaka No.5-5 Sanyo Electric Co., Ltd. F term (reference) 3L058 BD02 BE08 BF01 BG03 BG05 4C341 KL07

Claims (6)

[Claims] 1. A dust collecting filter which is provided at the center of a ceiling of a room to be cleaned and supplies air to the room to be cleaned after purifying air, and at least three filters provided at substantially equal intervals on a ceiling side around the dust collecting filter. The air purifier includes a plurality of air purifiers, and a plurality of air outlets provided on the floor side of the room to be cleaned to exhaust the air in the room to be cleaned, and the air purifier sucks the air in the room to be cleaned from below. An air purifying system characterized by blowing to the side. 2. The air cleaning system according to claim 1, wherein the air purifier is provided on a wall surface side of the room to be cleaned and blows purified air in a direction excluding the wall surface side. 3. The air cleaning system according to claim 2, wherein the air purifier is provided for each wall surface of the room to be cleaned. 4. The air cleaning system according to claim 2, wherein the air purifier is provided on a side where different wall surfaces of the room to be cleaned come into contact with each other. 5. The air purification system according to claim 3, wherein the dust collection filter has a projected area covering a body to be cleaned arranged on a floor of the room to be cleaned. 6. The air cleaning system according to claim 1, wherein the air outlets and the air purifier are located substantially opposite to each other.