CN1661287B - Laminar airflow control air purifier - Google Patents

Abstract

A laminar air flow control type air purifier, which has the advantages of fully ensuring the number of smokers accommodated in the smoking room, expanding the effective inhalation area, not affecting other smokers, and easily meeting the standards for harmful gases, and maintaining access Easy installation of comfortable smoking place. Its structure is that an air suction port is provided on the entire circumference of the cylinder wall of the lower body standing on the platform, and a blowing surface is provided on the wall surface of the upper body that is located outside the suction port, so that the suction port The air outside the part is made into a planar uniform flow and blown out, and the blower and air cleaner are arranged in the body between the suction port and the blowing face downstream of the air flow, and the blower is operated to move the purified air from the blowing face toward The outer side of the suction port is blown out in a planar uniform flow, and the air is sucked in from the suction port to generate a pressure difference between them, thereby generating an airflow that flows from the planar uniform flow to the suction port.

Description

Laminar airflow control air purifier

technical field

The present invention relates to a laminar air flow control type air cleaner installed in a smoking space or a refreshing (Japanese: リフレツシェ) space to purify air.

Background technique

At present, air cleaners for purifying tobacco smoke (hereinafter referred to as "smoke") are mainly divided into the following three categories. (1) The type that directly sucks the smoke for purification, (2) The type that surrounds a certain space with an air curtain or the like so that the smoke does not flow out and sucks and purifies it in the enclosed space, (3) The above (1) and ( 2) It is a combination that directly attracts smoke and purifies it, and encloses the unattracted smoke with barriers such as air curtains to prevent it from flowing out.

As the type (1), Japanese Patent Application Laid-Open No. 9-121947 by the present applicant is known.

According to the publication, the air purifier, that is, the smoking counter a, as shown in FIG. A cover plate e supported by a support f is provided above the intake port d, and an air cleaner is installed in the counter body b between the intake port d and the exhaust port c. When a person smokes around the smoking counter a, the smoke is guided by the cover plate e together with the surrounding air, enters the counter body b from the suction port d, is purified by the air cleaner, and is discharged from the exhaust port c to the outside .

As the type (2), Japanese Patent Application Laid-Open No. 7-35927 is known.

According to this document, the air cleaner, that is, the smoking unit a1, as shown in FIG. The air curtain i of the air port h, the ground j, and the top g form a smoking space A, and the air in the smoking space A is sucked through the suction port d of the top g, making the smoking space A once a negative pressure, so that the smoke and odor Instead of flowing out to other spaces in the room, the purified air is blown out from the blowing port h again by the air purifier in the top g of the ceiling, and circulated as an air curtain i.

As type (3), there is known Japanese Patent Laid-Open No. 2001-174011 of the present applicant.

According to this document, the air cleaner, that is, the airflow control type smoke distributor a2, as shown in FIG. 14 , the mechanical body m is a panel. Shaped on the side of the box n, in the panel. The air blowing port h forming the indoor air curtain i used to divide the building together is provided on the top, and the air intake d located in the smoking space A on one side divided by the air curtain i is provided on the box n, and the panel is on the panel. The exhaust port c of the non-smoking space B located on the other side is provided on the upper side, and an air cleaner is provided in the box n, and the exhaust volume of the purified air from the exhaust port c is set to be at least higher than that from the non-smoking space. The volume Q of the air drawn in from the outside of the smoking space B is large enough to be covered by the panel. The smoking space A on the side of the suction port d after the room is divided by the air curtain i is in a negative pressure state. As a result, the smoke around the machine body m in the smoking space A is immediately inhaled from the air inlet d, passes through the air cleaner to become purified air, and part of it is discharged from the exhaust port c to the non-smoking space B to reduce the exhaust volume. It is greater than the amount of air drawn in from the outside Q, so that the smoking space A is kept in a negative pressure state, and the remaining purified air is blown out from the blowing port h as an air curtain i, because the smoking space A is in a negative pressure state, so it is not sucked The smoke inhaled by the port d is finally inhaled by the suction port d and turned into purified air by the air cleaner, and then discharged to the non-smoking space B from the exhaust port c.

In addition, Japanese Patent Application Laid-Open No. 2004-8143 is known as a modified example of type (3).

According to this document, the air cleaner, that is, the air flow control type smoke distributor a3, as shown in FIG. The column part q of the required height, and above the column part q, there is a hat-shaped air blowing part r that blows the purified air that has passed through the above-mentioned air cleaner radially from the entire circumference to the bottom. The clean air blown out from the outlet r is sucked into the intake port d, and the periphery of the pillar q is partitioned by the substantially dome-shaped air curtain i, and the inside of the dome-shaped air curtain i is defined as the smoking space A. The smoke that is not directly inhaled into the air inlet d will not leak to the outside from the dome-shaped air curtain i, and will eventually be inhaled through the air inlet d to become purified air. Moreover, an exhaust port c is provided at the center of the upper surface of the air blowing portion r, and by discharging a part of the purified air to the outside of the dome-shaped air curtain i, the above-mentioned smoking space A inside the air curtain i can also be brought into a negative pressure state. .

The smoking counter a of FIG. 12 can easily become a smoking room with a smoke treatment function as long as it is arranged indoors, and it is very suitable to satisfy even smokers who want to avoid other people's smoke as much as possible. However, even if the smoking counter a is set in the smoking room, if the smoker does not smoke in the effective suction area around the suction port d of the smoking counter a, the purification function cannot be achieved. The effective suction area depends on the suction capacity. The only way to expand this area is to increase the suction capacity. When the suction capacity is increased, the corresponding amount of purified air is strongly discharged from the lower exhaust port C on the r<m ground, and it collides with the walls of the smoking room to become a turbulent flow, causing adverse effects on the effective suction area around the suction port d As a result, the expected expansion of the effective inhalation area cannot be obtained, and the smoke and the purified air are likely to be lost from the gaps such as the door of the smoking room to the outside. Moreover, the floor area occupied by the smoking counter a is also increased. In order to fully meet the standards for maintaining health (in Japan, as an index of air pollution caused by tobacco smoke, carbon monoxide CO concentration is used, and the standard is that the CO concentration is always 0.2ppm Below), the installation number has to be increased, and as a result, the effective area as a smoking room is remarkably reduced, and the number of people who accommodate smokers decreases.

In addition, if the smoking unit a1 of FIG. 13 is arranged indoors, it is advantageous in that it can become a smoking place having a smoke treatment function. However, the smoking unit a1 is large and difficult to move, and it is difficult to simply use the room as a smoking place with a smoke treatment function. Moreover, it is necessary to support the pillar k of the top g. Even if it is suspended from the ceiling, although the inside of the smoking space A can be brought into a negative pressure state once, the total amount of air sucked from the air inlet d in the center is As the air curtain i blown out from the blowing port h again, the negative pressure state in the smoking space A cannot be kept constant in the end, and the smoke flows out of the smoking space A. Therefore, the smoking unit a1 cannot expect a smoke-collecting effect and does not directly suck smoke, so it cannot satisfy the wish of a smoker to avoid other people's smoke as much as possible. Moreover, in order to fully meet the health-enhancing standard, it is necessary to surround the smoking space A with walls, which loses the advantage of the easy setting of the smoking place where the smoking unit a1 can come and go freely, and brings a lot of trouble.

In addition, the airflow control type smoke distributor a2 of FIG. 14 can be easily used as a smoking place with a smoke treatment function as long as it is arranged in an indoor shared space, and can satisfy the situation that even smokers want to avoid other people's smoke as much as possible. Desire, even if the smoker leaves the effective inhalation area around the inhalation port d to discharge the smoke, as long as it is controlled by the panel. In the smoking space A formed by the air curtain i, the smoke will not leak, and the smoke collection effect does not mainly depend on the smoking behavior (Japanese: マナ一), which is advantageous. However, this air flow control type smoke distributor a2 has limitations such as not being able to give full play to its advantages if it is not installed on the wall of the shared space in the room. Moreover, it is the same as the smoking counter a in FIG. Smoking in the surrounding effective inhalation area, although the smoke will not leak out of the smoking space A, but the smoke floats in the smoking space A, affecting other smokers, even if the inhalation capacity is excessively increased, the expected effective inhalation area will not be achieved increase. Moreover, in order to fully meet the health-enhancing standard, it is necessary to surround the smoking space A with walls, which loses the advantage of the easy setting of the smoking place of the airflow control type cigarette dispenser a2, which is free to enter and exit, and brings a lot of trouble. In addition, the airflow control type smoke distributor a3 of FIG. 15 can be easily used as a smoking place with a smoke treatment function as long as it is arranged in an indoor shared space, and can satisfy the situation that even smokers want to avoid other people's smoke as much as possible. Desire, even if the smoker leaves the effective suction area around the suction port d to discharge the smoke, as long as the smoke is in the smoking space A formed by the hat-shaped air blowing part r and the air curtain i, the smoke will not leak, and the smoke collection effect is not mainly determined For smoking behavior, this is beneficial. However, this airflow control type cigarette dispenser a3 is the same as the smoking counter a in Fig. 12, if the smoke is not smoked in the effective suction area around the suction port d, although the smoke will not leak to the outside of the smoking space A, the smoke floats in the smoking area. In the space A, other smokers are affected, and the expected increase in the effective inhalation area cannot be achieved even if the inhalation volume is excessively increased. Moreover, in order to fully meet the health-enhancing standard, it is necessary to surround the smoking space A with walls, which loses the advantage of the easy setting of the smoking place of the airflow control type cigarette dispenser a3 and brings a lot of trouble. In addition, even if the airflow control type smoke distributor a3 is installed in the smoking room, the occupied area of the floor increases due to the large machine p, and in order to fully meet the health-enhancing standards, the number of installations needs to be increased, and the effective area of the smoking room is reduced , to accommodate fewer smokers.

Contents of the invention

In view of this, the object of the present invention is to provide a smoker that can sufficiently ensure the number of smokers accommodated even if it is installed in a smoking room, and can expand the effective inhalation area around the inhalation port without increasing the inhalation capacity, without affecting other smoking. It is a laminar air flow control type air cleaner that meets the standards for further health improvement and can maintain the advantages of easy installation of smoking places that are easy to form and can be entered and exited freely.

That is, the invention of claim 1 is characterized in that the body erected on the gantry has the lower body and the upper body concentrically arranged thereon as main components, and an air suction port is provided along the entire circumference of the cylinder wall of the lower body. , and a blowing surface is provided on the wall surface of the upper body more outside than the suction port, so that the air outside the suction port is blown out in a planar uniform flow, and between the suction port and the An air cleaner and a blower are installed in the body between the blowing surfaces that are downstream in terms of air flow, and the air blower is operated to flow the air purified by the air cleaner from the blowing surface toward the outside of the suction port. A uniform flow is blown out, and air is sucked in from the suction port to generate a pressure difference therebetween, thereby generating an airflow that flows from the planar uniform flow to the suction port.

The invention of claim 2 is characterized in that a part of the purified air purified by the air cleaner is discharged out of the system from an outlet provided in the upper body.

The invention of claim 3 is characterized in that the blowing surface is provided on the lower surface of a hat-shaped box located on the upper part of the upper body, and the air from the blowing surface on the lower surface of the hat-shaped box is formed into a planar shape. The uniform flow blows down while surrounding the suction port.

The invention of claim 4 is characterized in that the blowing surface is provided on the entire circumference of the cylinder wall of the upper body, and the air from the entire circumference of the cylinder wall is made to flow uniformly in a planar manner toward the outside of the suction port radially. blow out.

The invention of claim 5 is characterized in that the suction port is installed at a height ranging from at least a position equal to or slightly lower than the position of the mouth of a standing adult to the height of an adult.

The invention of claim 6 is characterized in that the stand and the body are cylindrical at least up to the height of an adult.

The invention of claim 7 is characterized in that an information medium is provided on the stand and the body.

[Effect of the invention]

In the invention described in claim 1, the air is inhaled from the suction port of the lower body standing on the platform, and after being purified by the air cleaner, the purified air is blown from the blowing surface of the upper body toward the outside of the suction port in a planar shape. When the uniform flow is blown out, a pressure difference is generated between the planar uniform flow and the suction port, thereby forming an airflow from the planar uniform flow toward the suction port, and introducing tobacco smoke etc. therebetween into the suction port. Therefore, there is no need to increase the suction capacity, there is no unnecessary air flow disturbance, and the effective suction area around the suction port including the planar uniform flow area can be expanded, and the recovery rate of smoke and the like can be improved without affecting other smokers. There is an effect that the health-promoting standard can be easily satisfied, and when it is installed indoors other than a dedicated smoking room, it has the effect of maintaining the advantage of easy installation of a smoking place that can be freely entered and left.

In the invention described in technical solution 2, when a part of the purified air after passing through the air cleaner is discharged from the discharge port provided on the body to the outside of the system, the corresponding air flow from the planar uniform flow toward the suction port is enhanced, Smoke and the like in between can be introduced into the suction port. Therefore, in addition to enhancing the above-mentioned effects, there is also an effect of being able to easily meet health-promoting standards by avoiding the accumulation of components not removed by the air cleaner.

In the invention described in technical solution 3, the purified air is made into a planar uniform flow and blown down from the blowing surface provided on the lower surface of the hat-shaped box at the upper part of the body to surround the suction port, so it is in a planar uniform flow. The smoke in the area does not leak, and is guided into the suction port along with the airflow that flows uniformly from the surface to the suction port. Therefore, the above-mentioned effects can be further enhanced.

In the invention described in claim 4, even if the purified air is blown out in a planar uniform flow from the blowing surface arranged on the entire circumference of the cylinder wall on the upper part of the machine body, it is blown radially toward the outside of the suction port, as long as it is installed in the smoking room, the planar shape is uniform The flow will go around through the wall of the smoking chamber, and the airflow from the planar uniform flow to the suction port will be generated by the suction from the suction port, and the smoke and the like in between can be introduced into the suction port. Therefore, even if the blowing surface is provided on the entire circumference of the cylinder wall at the upper part of the body, as long as it is arranged in the smoking room, the above-mentioned effect can be further enhanced.

In the invention described in technical solution 5, when an adult smoker in a standing state blows smoke towards the inhalation port, the smoke can be immediately introduced from the position I-q of an adult in a standing state or a slightly lower setting height to the height of the adult. Inhalation mouth part within the range of height. Therefore, the above-mentioned effects can be further enhanced.

In the invention described in technical solution 6, the platform and the body are cylindrical at least up to the height of an adult, so the occupied ground can be suppressed to a minimum, and the smoker is closest to the suction port of the body, and the smoke, etc. can be drawn from all directions. Introduce into the suction port. Therefore, in addition to the above-mentioned effects, even if it is installed in a smoking room, the number of smokers accommodated can be ensured sufficiently, and the smoke from the smokers can be directly inhaled to improve efficiency.

In the invention described in claim 7, the smoker smokes toward the gantry and the machine body, so that the smoker can watch the information media installed on them. Therefore, in addition to the above effects, information can also be provided to smokers.

Description of drawings

Fig. 1 is a front view showing a laminar flow control type air cleaner according to an embodiment of the present invention (Example 1).

Fig. 2 is a sectional view taken along line A--A of Fig. 1 (Example 1).

Fig. 3 is a cross-sectional view showing a main part of a laminar flow control type air cleaner according to an embodiment of the present invention (Example 1).

Fig. 4 is a plan view showing a fixed base of the laminar flow control type air cleaner according to the embodiment of the present invention (Example 1).

Fig. 5 is a side view showing an installed state of the fixed base of Fig. 4 (Example 1).

Fig. 6 is a plan view showing a laminar flow control type air cleaner according to an embodiment of the present invention (Example 1).

Fig. 7 is a diagram showing the operating state of the laminar flow control type air cleaner according to the embodiment of the present invention (Example 1).

Fig. 8 is a view showing the operating state of the laminar flow control type air cleaner according to the embodiment of the present invention (Example 1).

Fig. 9 is a front view showing a laminar flow control type air cleaner according to another embodiment of the present invention (Example 2).

Fig. 10 is a cross-sectional view showing an intake port portion of a laminar flow control type air cleaner according to another embodiment of the present invention (Example 3).

Fig. 11 is a side view showing an intake port portion of a laminar flow control type air cleaner according to another embodiment of the present invention (Example 3).

Fig. 12 is a perspective view showing a conventional example.

Fig. 13 is a perspective view showing a conventional example.

Fig. 14 is a side view showing a conventional example.

Fig. 15 is a side view showing a partial section of a conventional example.

Detailed ways

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

(Example 1)

Fig. 1 is a front view showing the laminar air flow control type air cleaner shown in Embodiment 1 of the present invention, Fig. 2 is a sectional view showing a line A-A of Fig. 1 , and Fig. 3 shows the laminar air flow in Embodiment 1 of the present invention A sectional view of the main part of the control type air cleaner. In the figure, the laminar air flow control type air cleaner 1 is installed in a building such as a smoking room, and an air suction port 4 is provided on the lower part of the cylinder wall of the body 3 erected on the stand 2, and an air suction port 4 is provided on the bottom of the suction port. The wall surface of the body 3 at the top of the part 4 is provided with a blowing surface 6, so that the air outside the suction port 4 is blown out as a planar uniform flow 5 (refer to FIG. 3 ), and an air cleaner 7 is arranged on the suction port. In the body 3 between the unit 4 and the outlet unit 6 downstream of the air flow, the air cleaned by the air cleaner 7 (see FIG. 3 ) is uniformly distributed in a planar manner from the outlet unit 6 to the outside of the inlet unit 4. The flow 5 is blown out, and air is sucked in from the suction port 4 to generate a pressure difference between them, thereby forming an air flow 8 from the planar uniform flow 5 to the suction port 4 .

The stand 2 has a cylindrical shape, and its lower end is covered by a fixed base 11 shown in FIG. 4 mounted on a floor 10 . That is, the fixed base 11 is fixed to the ground 10 at any desired location by anchor bolts 12 . A top plate 13 is attached to the upper end side of the cylindrical stand 2, and a hole is opened in the center of the top plate 13, and an ashtray 14 is inserted thereinto. Two pillars 15 are erected on the stand 2 to support the body 3 .

The body 3 includes: a lower body 23 made of a cylindrical body 20 at the bottom and a square box body 22 connected to the tapered portion 21; The upper body 26 that the square box body 25 that links to each other constitutes at the central part of casing 24; This lower body 23 and upper body 26 are connected and correspond to the adjusting body 27 that the indoor ceiling height that is provided with is used. This body 3 and above-mentioned platform 2 are at least to the cylinder of adult's height, that is, the cylinder 20 of body 3 middle and lower body 23 and platform 2 are the cylinder of adult's height, so the ground 10 of occupation can be suppressed. and the smoker is closest to the suction port 4 of the body 3, and can introduce tobacco smoke and the like into the suction port 4 from all directions. Therefore, when installed in the smoking room, the number of smokers accommodated can be ensured sufficiently, the smoke from the smokers can be directly inhaled, and the efficiency can be improved.

On the cylindrical body 20 of the above-mentioned lower body 23, as mentioned above, the above-mentioned suction port 4 is provided. Can be inhaled from all directions. And this suction mouth part 4, its installation height is at least in the range (generally, in Japan, within the range of 130-185cm) from the position equal to or slightly lower than the position of the mouth of an adult in a standing state to the position of the height of an adult. Therefore, when an adult smoker in a standing state spits out the smoke toward the inhalation port 4, it is immediately introduced into the cylindrical body 20. In addition, the above-mentioned air cleaner 7 described in detail later is housed in the tapered portion 21 and the box body 22 of the lower body 23 . The suction port 4 is an aggregate of small holes, but may also be a mesh attached to the entire circumference of the cylinder wall of the cylinder 20 .

As described above, the above-mentioned blowing surface 6 is provided on the hat-shaped box 24 of the above-mentioned upper body 26. The blowing surface 6 is an aggregate of small holes opened in substantially the entire surface of the lower wall surface 24a of the hat-shaped box 24. Therefore, air can be blown downward from substantially the entire surface of the lower wall surface 24a, and the air flow becomes a planar uniform flow 5 . The blowing surface 6 is based on the central axis L of the body 3, and the planar uniform flow 5 is located outside the above-mentioned suction port 4, so it blows down from the top of the outside of the suction port 4, surrounds the suction port 4, and The surroundings of the suction port 4 are formed as passages for the laminar downward blowing airflow. Although the blowing surface 6 is a collection of small holes, it may also be the same as the suction IZI part 4, and it may be a structure in which a net is attached to substantially the entire surface of the downward facing wall of the hat-shaped box 24. In addition, in the square box 25 of the upper body 26, a blower 28 described in detail later is housed, and a mesh 29 is attached to the side of the box 25 for the purpose of rectification, but this is not a necessary condition. In addition, as shown in FIG. 6 , bolt holes 30 for attaching to the ceiling 16 are opened in the upper wall surface 25 a of the box body 25 .

The adjusting body 27 is located between the upper body 26 and the lower body 23 , and can freely adjust the overall height of the body 3 . The adjusting body 27 is used to freely install the laminar air flow control type air cleaner 1 in the smoking room in synchronization with the change of the indoor height dimension of the building.

Above-mentioned air cleaner 7 is made up of following 3 parts, namely: removes the pre-filter 40 that sucks the bigger particle in the air; Composite filter 42 for ultrafine particles, odor components, harmful gas components, etc. that cannot be removed by the electric dust collector 41 . In addition, instead of the electric dust collector 41, a mechanical filter capable of removing at least fine particles may be used, and an ultra-high-performance mechanical filter capable of removing ultrafine particles, odor components, and harmful gas components may be used in combination. filter.

The blower 28 is not particularly limited except for the basic capacity and pressure required to form the planar uniform flow 5 and the conditions required for the load on the air cleaner 7 . The face-like uniform flow 5 can be properly selected within the range of wind speed of 0.05-0.5m/sec, preferably within the range of wind speed of 0.1-0.3m/sec.

When the upper wall surface 25a of the casing 25 of the upper body 26 of the body 3 is provided with a part of the purified air after the air cleaner 7 is discharged to the outside of the system, a part of the purified air can be discharged from the system. The discharge port 31 is discharged to the outside of the system, so the corresponding airflow 8 from the planar uniform flow 5 toward the suction port 4 is strengthened, and the smoke etc. in between can be quickly introduced into the suction port 4 .

In addition, if information media are provided on the stand 2 and the body 3 of the laminar air flow control type air cleaner 1, the smoker must watch the information media because he is smoking towards the stand 2 and the body 3. The information medium may be image media such as posters, moving images, and still images, and is not particularly limited. The content may be news, weather forecast, advertisement, etc., and is not particularly limited.

Next, a method of using the laminar flow control type air cleaner 1 having the above-mentioned structure will be described.

First, the ceiling height of the smoking room of the building is investigated, and the ceiling and floor conditions are investigated to see whether the laminar flow control type air cleaner 1 can be installed in the smoking room. On the basis of these investigation results, determine the size of the adjustment body 27 of the laminar airflow control type air cleaner 1, further determine the setting place in the smoking room, and adjust the fixed base 11 and the upper wall surface 25a of the box body 25 as required. Bolt holes 30 etc. are provided so that the laminar air flow control type air cleaner 1 can be installed without hindrance. Next, the upper body 26 of the body 3 is installed on the ceiling, and the fixing base 11 is fixed on the ground 10 in alignment with the central axis L of the body 3 by using anchor bolts 12 . Insert the stand 2 into the fixed base 11, and then install the lower body 23 on the two pillars 15 erected on the stand 2, adjust the height by the adjustment body 27, and finish the installation.

The laminar air flow control type air cleaner 1 arranged in the smoking room, when someone enters the smoking room, is sensed by the person induction sensor arranged at the entrance and exit of the smoking room or the lower body 23, or the person who enters the smoking room smokes and spits out smoke. , Inducted by the smoke sensor, turn on the power and start running. When the blower 28 operates, the air enters the cylindrical body 20 of the lower body 23 from the suction port 4, and at the same time, the planar uniform flow 5 is also blown out from the lower wall surface 24a of the hat-shaped box body 24 of the upper body 26. The surface 6 blows downward while surrounding the suction port 4, and the planar uniform flow 5 enters the cylindrical body 20 from the suction port 4 again and circulates. Therefore, a slight pressure difference is generated between the planar uniform flow 5 and the suction port 4 , and the airflow 8 is formed from the planar uniform flow 5 toward the suction 113 part 4 .

The smoker will utilize the ashtray 14 arranged on the top plate 13 on the stand 2, so smoke near the suction port 4 of the cylindrical body 20, most of the smoke from the smoker is directly sucked into the suction 113 part 4. The smoke that is not directly sucked into the suction port 4 and floats is included by the planar uniform flow 5 from the blowing surface 6, and enters the circle from the suction E1 part 4 through the above-mentioned airflow 8 from the planar uniform flow 5 toward the suction E1 part 4. Inside the barrel 20. Therefore, the effective suction area 32 around the suction port 4 shown in FIG. 7 can be enlarged.

The smoke that enters the cylindrical body 20 with the airflow 8 passes through the pre-filter 40 to remove larger particles. Fine particles, odorous components, harmful gas components, etc. are removed by the composite filter 42 to become purified air. The purified air is rectified by the mesh 29 and further passes through the aggregate of small holes, that is, the blowing surface 6 to form a planar uniform flow 5 . Hereinafter, the same operation as above is repeated, near the suction port 4, the smoke from the smoker passes through the enlarged effective suction area 32, and all of them are reliably sucked into the cylindrical body 20 from the suction port 4 and purified.

In addition, when the upper wall surface 25a of the box body 25 of the body 3 is provided with a part of the purified air after the above-mentioned air cleaner 7 is discharged to the outside of the system, a part of the purified air can be discharged from the exhaust port. The outlet portion 31 is discharged, so the effective suction area 32 of FIG. 8 becomes a negative pressure state, and the airflow 8 from the planar uniform flow 5 towards the suction port 4 is strengthened accordingly, and the smoke etc. in the effective suction area 32 will not leak out. It can be quickly introduced into the cylindrical body 20 from the suction port 4 .

(Example 2)

FIG. 9 is a laminar airflow control type air cleaner 1a shown in Embodiment 2 of the present invention. The difference between this laminar airflow control type air cleaner 1a and Embodiment 1 shown in FIGS. There is no cap-shaped box 24 on the top, and instead of the mesh 29 for the purpose of rectification provided on the side of the box 25, an aggregate of small holes, that is, the blowing surface 6a is provided. The outlet surface portion 6a may also be composed of a mesh for planar uniform flow, similarly to the outlet surface portion 6 of the first embodiment. Therefore, even if the purified air is radially blown out from the blowing surface 6a on the side of the box body 25 as a planar uniform flow 5a toward the outside of the suction port 4, as long as it is installed in the smoking room, the planar uniform flow 5a will pass through the smoking room. The wall surface is turned around, and the airflow 8a from the planar uniform flow 5a toward the suction port 4 is formed by the suction from the suction port 4, and the smoke etc. in between can be introduced into the suction port 4. Therefore, even this laminar flow control type air cleaner 1a can obtain the same effect as that of the first embodiment as long as it is installed in the smoking room. Other structures and functions are the same as in Embodiment 1, so symbols are marked on the figures and their descriptions are omitted.

(Example 3)

Fig. 10, Fig. 11 are the laminar flow control type air cleaner 1b shown in the embodiment 3 of the present invention, this laminar flow control type air cleaner 1b and the laminar flow control type shown in Fig. 1～Fig. 8 embodiment 1 The difference between the air cleaner 1 and the laminar air flow control type air cleaner 1a shown in FIG. The plates 43, 43 are attached to the two pillars 15, 15, and a bottom plate 44 is provided to form the suction port 4a. According to the suction port 4a of the above-mentioned structure, when the air blower 28 operates, an airflow 8 is generated, and the airflow 8 is directed toward the suction port 4a, passes through the curved plates 43, 43, and is formed near the curved plates 43, 43, and away from it. The fast discontinuous flow, as a result, generates a large number of small clockwise eddies 45 on these curved plates 43 , 43 . On the other hand, air is inhaled axially above a large number of small eddies 45, so a large number of small eddies 45 converge to form a tornado airflow 46 towards the casing 22 of the lower body 23 of the body 3.

Due to the vortex convergence of the tornado airflow 46, air is sucked in evenly from the upper part to the lower part of the suction port 4a, and the above-mentioned excellent and wide effective suction area 32 is formed. In addition, if the suction port 4a is irradiated with light, the appearance of the smoke being sucked by the tornado air flow 46 can be visually observed, and the smoker gathers around the suction port 4a in order to see the tornado air flow 46, and the smoke will Easier to inhale. Here, the number of curved plates 43 is two, but it may be three or four. In addition, the tornado airflow 46 can be generated even without the bottom plate 44, so it is not necessary to provide it, but it cannot be denied that the generation of the tornado airflow 46 is somewhat unstable. Other structures and functions are exactly the same as the laminar flow control type air cleaner 1, 1a.

Claims (7)

1. laminar airflow controlled air purifier, it is characterized in that, the upright body (3) that is located on the pallet (2) is the main composition key element with bottom body (23) and top body (26) provided thereon with one heart, full week of barrel along described bottom body (23) is provided with air suction inlet portion (4,4a), simultaneously than described suction oral area (4,4a) wall of top body (26) that more is positioned at the outside is provided with and makes air as planar equal uniform flow (5, what 5a) blow out blows out face (6,6a), and at described suction oral area (4,4a) with the described face (6 that blows out that becomes airflow downstream, air purifier (7) and pressure fan (28) are set in the body 6a) (3), pressure fan (28) is moved will be by this air purifier (7) cleaned air passes with planar equal uniform flow (5,5a) from the described face (6 that blows out, 6a) towards described suction oral area (4, outside 4a) blows out, and from described suction oral area (4,4a) suck air, make to produce pressure differential therebetween, thus produce from planar equal uniform flow (5,5a) towards described suction oral area (4, air-flow 4a) (8,8a).

2. laminar airflow controlled air purifier as claimed in claim 1 is characterized in that, will be discharged outside system from the discharge oral area (31) that is arranged on the described top body (26) by the part of described air purifier (7) cleaned air passes.

3. laminar airflow controlled air purifier as claimed in claim 1 or 2, it is characterized in that, the described face (6 that blows out, 6a) be set in place on the lower surface of the cap shape casing (24) on the top of described top body (26), will be from the described face (6 that blows out below the cap shape casing (24), air 6a) is as planar equal uniform flow (5) and (4, state 4a) down blows to surround described suction oral area.

4. laminar airflow controlled air purifier as claimed in claim 1 or 2, it is characterized in that, describedly blow out barrel that face is arranged on described top body (26) week entirely, will be from the complete all air of this barrel as planar equal uniform flow (5,5a) and (4, outside 4a) blows out radially towards described suction oral area.

5. laminar airflow controlled air purifier as claimed in claim 1 or 2, it is characterized in that, described suction oral area (4,4a), its be provided with highly be from equal or low slightly position to the height position of being grown up of adult's mouth position of standing state till scope in.

6. laminar airflow controlled air purifier as claimed in claim 1 or 2 is characterized in that, described pallet (2) and described body (3) are cylinder (20) in adult's height scope.

7. laminar airflow controlled air purifier as claimed in claim 1 or 2 is characterized in that, is provided with information medium on described pallet (2) and described body (3).

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