KR20180011585A - Local ventilator and area ventilation apparatus using the same - Google Patents

Abstract

The present invention relates to a local ventilation apparatus and an area ventilation apparatus using the same. According to the present invention, the local ventilation apparatus comprises: a driving unit; a swirler to be rotated by the driving unit and to generate an eddy flow which forms a curtain on the circumference of the exhaust flow; an external guide member placed to wrap around the external circumference of the swirler to guide an eddy flow parallel to a rotary central shaft of the swirler; an internal guide member placed on an internal side of the external guide member to form an eddy flow passage in the space from the external guide member; a plurality of eddy flor control plates installed on the external guide member in a circumferential direction at regular intervals to control an eddy flow passing through the eddy flow passage; and an external air guide unit installed on the external guide member to guide the air outside the external guide member towards an eddy flow. In addition, according to the present invention, the area ventilation apparatus comprises: a plurality of local ventilation apparatuses; and a plurality of exhaust pipes connected to each of the plurality of local ventilation apparatuses. The plurality of local ventilation apparatuses are installed on a top side of an area, where contaminated air is generated, to allow the rotary central shaft of the swirler to be vertical, or are installed on a side of the area to allow the rotary central shaft of the swirler to be horizontal. The plurality of local ventilation apparatuses are installed to hide a part of each of eddy flow discharge surfaces. The present invention is to provide the local ventilation apparatus to form a stable exhaust flow and area ventilation apparatus to efficiently exhaust contaminated air generated in a relatively broad area by using a plurality of local ventilation apparatuses.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a local exhaust ventilation apparatus,

The present invention relates to a local exhaust apparatus capable of forming a stable exhaust flow and a zone exhaust apparatus capable of efficiently exhausting contaminated air generated in a relatively large area by using a plurality of local exhaust apparatuses.

Generally, the exhaust device is installed in a factory where a pollutant such as odor, noxious gas, soot, dust or the like is generated or in a kitchen of a home or a restaurant and sucks air containing such pollutant (hereinafter referred to as polluted air) It is used for discharging.

In the conventional exhaust system used for this purpose, as the distance between the contamination source and the exhaust system becomes larger, the exhaust efficiency for sucking and discharging the polluted air drops sharply. Even when the pollution source is located in a wide open space, The exhaust efficiency of the exhaust gas is reduced.

Therefore, in order to improve the exhaust efficiency, it is preferable to dispose the exhaust system as close as possible to the contamination source, and shut off the contamination source from the surrounding space.

However, there are many cases where it is difficult to install the exhaust device near the pollution source and the pollution source is difficult to be blocked from the surrounding space because a working space is required between the pollution source and the exhaust device in actual work sites. In such a case, There is a problem that satisfactory exhaust efficiency can not be obtained. In order to solve such a problem, an exhaust fan having a larger capacity than necessary is used to increase the suction amount of polluted air. However, in this case, noise is increased, installation and operation costs are excessive, There is a disadvantage that efficiency is not obtained.

In order to overcome the problems of the conventional exhaust system, a local exhaust system for improving the exhaust efficiency by using a swirler that forms a vortex has been developed. In Korean Patent No. 10-0873522, An example of an exhaust device is disclosed.

Such a conventional local exhaust system generally has a swirler which is installed near the intake port of the exhaust pipe to form a vortex. The airflow created by the rotation of the sweller forms a vortex around the exhaust stream of contaminated air rising from the source towards the inlet of the exhaust tube along the swirl center axis of rotation. The vortex thus formed serves as a peripheral curtain for blocking the contaminant source from the surrounding space, thereby enabling the contaminated air to be sucked into the exhaust pipe more efficiently.

In a conventional local exhaust system using a swirler, a vortex formed by a swirler spreads in a horizontal direction by a centrifugal force due to the rotation of the swirler. Therefore, the vortex must be extended long in the vertical direction in order to efficiently suck polluted air away from the local exhaust. However, in this case, the air curtain formed by the vortex extends in the vertical direction to narrow the passage of the exhaust flow formed inside the air curtain. As a result, the vortex and the exhaust flow partially interfere with each other, and the exhaust flow becomes unstable, resulting in a problem of lowering the exhaust efficiency. To prevent this, there is a technical difficulty in accurately controlling vortex flow and exhaust flow.

In addition, the conventional local exhaust system has a disadvantage in that it is inefficient to exhaust polluted air generated in a relatively large area.

As described above, the conventional local exhaust system using the swirler still has many parts to be improved, and thus it has not been widely used yet.

Patent Document 1: Korean Patent No. 10-0873522 (Registered on December 04, 2008)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the conventional problems as described above, and it is an object of the present invention to provide a local exhaust device having a structure capable of forming a stable exhaust flow and a plurality of local exhaust devices having such a configuration, And to provide a zone exhaust device configured to efficiently exhaust polluted air.

According to an aspect of the present invention, there is provided a local exhaust system comprising:

A driving unit;

A sweller which is disposed near the suction port of the exhaust pipe and generates a vortex that forms an air curtain around the exhaust flow toward the exhaust pipe by being rotated by the driving unit;

An outer guide member disposed to surround the outer periphery of the swirler and guiding the vortex generated by the swirler in a direction parallel to the rotation center axis of the swirler;

An inner guide member disposed on the inner side of the outer guide member and defining a vortex flow passage through which the vortex generated by the swirler passes between the inner guide member and the outer guide member;

Wherein the vortex flow control valve has a shape that is bent toward the inner guide member from the outer guide member and controls a vortex passing through the vortex flow passage so that a part of the vortex flows inward A plurality of vortex control plates for inhibiting steering; And

And an outer air guide unit installed on the outer guide member and guiding the air outside the outer guide member toward the vortex.

The swirler includes a rotating plate member rotatably connected to the driving unit and having an exhaust hole communicating with the exhaust pipe at a center region thereof and an air flow passage formed in the rotating plate member to rotate together with the rotating plate member to form the vortex, And a plurality of blades for generating a plurality of blades.

The swirler includes a cylindrical first guide member provided at an outer side edge portion of the rotating plate member and a second guide member provided to surround the outer end of the plurality of blades, And a third guide member installed to cover the upper portion of the plurality of vanes.

The plurality of vanes may be disposed radially around the exhaust hole and the outer ends of the vanes may protrude from the outer edge of the rotating plate member and may extend to the bottom of the outer circumferential surface of the first guide member .

In addition, at least one air inlet hole is formed in the upper portion of the swirler so as to allow air to flow into the swirler, and the outer guide member is formed in the swirler Wherein the inner guide member is a cylindrical member having a diameter smaller than a diameter of the outer guide member, the inner guide member being a cylindrical member having a diameter smaller than the diameter of the outer guide member, And may be installed to be fixed to the outer guide member.

Further, a plurality of connecting members extending in the radial direction and spaced circumferentially are provided between the inner guide member and the outer guide member, and the inner guide member is fixed to the outer guide member through the plurality of connecting members .

The rotating plate member is provided with a cylindrical first exhaust passage forming member which surrounds the exhaust hole and forms an exhaust passage communicating with the exhaust pipe. The first exhaust passage forming member is provided inside the inner guide member, Wherein the fixed plate member is provided with an annular fixed plate member formed at a lower portion of the sweller and spaced apart from the sweller, and the fixed plate member is provided with a cylindrical shaped member which surrounds the hollow and forms an exhaust passage communicating with the exhaust pipe Two exhaust passage forming members may be provided.

The lower end of the inner guide member may extend to a lower position than the lower end of the outer guide member, and the plurality of vortex control plates may be installed such that the lower end of the vortex control plate is located at a height higher than or equal to a lower end of the inner guide member.

The plurality of vortex control plates are fixedly provided at a lower end portion of the outer guide member at a certain interval along the circumferential direction at a predetermined distance from the lower end of the outer guide member toward the inner guide member by 30 ° to 70 ° It may have a bent plate shape.

The sum of the circumferential widths of the plurality of vortex control plates may be 20% to 40% of the circumferential length of the outer guide member.

The outer air guide unit may include an outer air passage forming member provided outside the lower end of the outer guide member to form a passage through which the outside air passes between the outer guide member and the outer guide member; A plurality of outer air guide members provided between the outer guide member and the outer air passage forming member and guiding the outer air in a direction parallel to the rotation center axis of the swirler; Wherein the outer air passage forming member is formed at a lower end portion of the outer air passage forming member at a predetermined interval along the circumferential direction and has a shape bent from the outer air passage forming member toward the inner guide member, And a plurality of external air control panels that allow the outside air passing through the passages of the plurality of vortex control plates to form a flow corresponding to the vortex flow controlled by the plurality of vortex control plates.

The outer air passage forming member may have a cylindrical shape extending in a direction parallel to the rotational center axis of the swirler and surrounding the outer circumferential surface of the outer guide member, and may be disposed to be spaced from the outer circumferential surface of the outer guide member.

The plurality of outer air guide members may have a plate shape elongated in a direction parallel to the rotational center axis of the swirler and may be disposed at regular intervals along the outer circumferential surface of the outer guide member.

The plurality of external air control boards may be disposed at positions corresponding to the plurality of vortex control boards, and the number of the plurality of external air control boards may be equal to the number of the plurality of vortex control boards.

The plurality of outer air control plates may have a plate shape bent from 30 ° to 70 ° from the lower end of the outer guide member toward the inner guide member, and the sum of the circumferential widths of the plurality of outer air control plates may be a value May be 20% to 40% of the circumferential length of the air passage forming member.

According to another aspect of the present invention, there is provided a region exhaust apparatus for a region where polluted air is generated,

A plurality of local exhaust systems having the above-described configuration; And

And a plurality of exhaust pipes connected to each of the plurality of local exhaust devices,

Wherein the plurality of local exhaust systems are installed such that the rotation center axis of the swirler is perpendicular to the upper portion of the region or the rotation center axis of the swirler is horizontal to the side portion of the region,

Wherein the plurality of local exhaust systems are installed such that a part of each vortex exhaust surface is obscured.

The plurality of local exhaust systems are arranged such that the rotation center axis of the swirler is perpendicular to the upper portion of the region, and the plurality of local exhaust systems are arranged at intervals along the outer edge portion of the region Wherein the top and bottom surfaces of the plurality of local exhaust systems are spaced apart from the top surface of the outer edge of the area and spaced apart from the vortex discharge surface of the plurality of local exhaust systems, A portion of the vortex discharge surface of each of the plurality of local exhaust devices corresponding to the center of the region is covered by the shielding plate and the remaining portion is exposed outside the edge of the shielding plate have.

Further, an auxiliary exhaust hole may be formed at the center of the cover plate, and an auxiliary exhaust pipe may be connected to the auxiliary exhaust hole to exhaust polluted air passing through the auxiliary exhaust hole to the outside.

The plurality of local exhaust systems may be arranged in the upper part of the open end or both ends of the area so that the rotation center of the sweller A plurality of vortex discharge surfaces, each of the vortex discharge surfaces being disposed at a distance from the upper surface of the upper wall, spaced apart from each other along the edge of the upper wall of the region, A portion may be obscured by the top wall and the remaining portion may be exposed outside the edge of the top wall.

Further, an auxiliary exhaust hole may be formed at a central portion of the upper wall, and an auxiliary exhaust pipe may be connected to the auxiliary exhaust hole to exhaust polluted air passing through the auxiliary exhaust hole to the outside.

The plurality of local exhaust systems may be arranged such that the axis of rotation of the swirler is horizontal to the outside of the upper end of the side wall, Wherein the lower portion of the vortex discharge surface of each of the plurality of local exhaust devices is covered by the side wall and the remaining portion is exposed to the upper side of the upper side of the side wall.

In addition, the region may have two opposing sidewalls, and the plurality of local exhaust devices may be installed outside the upper end of each of the two sidewalls.

Further, the area of the vortex discharge surface of the local exhaust system may be 40% to 60% of the total area of the vortex discharge surface of the local exhaust system.

According to the local exhaust system according to one aspect of the present invention, a part of the vortex passing through the vortex flow passage between the inner guide member and the outer guide member by a plurality of vortex control plates provided on the outer guide member is moved inward Can be suppressed. In addition, the flow of the external air guided by the external air guide unit provided on the external guide member not only gives an additional linearity to the vortex passing through the vortex flow passage, but also synchronizes with the flow of the vortex controlled by the plural vortex control plates, And will assist in the role of multiple vortex control panels. Therefore, the exhaust flow of the polluted air generated in the pollutant generation region can be stably raised toward the exhaust pipe, and thus the exhaust efficiency can be improved.

According to another aspect of the present invention, there is an advantage in that a plurality of local exhaust systems are suitably arranged to efficiently exhaust polluted air generated in a large area.

1 is a sectional view showing a local exhaust system according to the present invention.
FIG. 2 is a perspective view of the sweller shown in FIG. 1 from above. FIG.
3 is a perspective view of the inner guide member, the outer guide member, the vortex control plate, and the outer air guide unit shown in FIG. 1, viewed from above.
4 is a cross-sectional view of the outer guide member along the line XX 'shown in FIG. 1, the eddy current control plate, and the external air guide unit.
5 is a perspective view showing an embodiment of a region exhaust apparatus using a plurality of local exhaust apparatuses.
6 is a view for explaining the operation of the region exhausting apparatus shown in FIG.
7 is a perspective view showing another embodiment of the region exhausting apparatus according to the present invention.
8 is a perspective view showing still another embodiment of the region exhausting apparatus according to the present invention.
9 is a view for explaining the operation of the region exhausting apparatus shown in FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a local exhaust system and a regional exhaust system using the same according to the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same elements.

FIG. 1 is a sectional view showing a local exhaust system according to the present invention, FIG. 2 is a perspective view of the sweller shown in FIG. 1 from above, FIG. 3 is a perspective view of the inner guide member, And FIG. 4 is a sectional view of the outer guide member along the line XX 'shown in FIG. 1, the eddy current control plate, and the external air guide unit.

As shown in FIG. 1, the local exhaust system 100 according to the present invention may be installed such that the rotation center axis Z of the sweller 120 is vertical. Also, the local exhaust system 100 according to the present invention may be installed so that the rotation center axis Z of the sweller 120 is horizontal or inclined. Hereinafter, for simplicity, clarity, and convenience of explanation, the local exhaust system 100 according to the present invention will be described with reference to an example in which the rotation center axis Z of the sweller 120 is vertically installed .

1 to 4, a local exhaust system 100 according to an embodiment of the present invention includes a driving unit 110 and a plurality of exhaust pipes 110 arranged in the vicinity of the intake port of the exhaust pipe 10 to generate vortexes Fs An outer guide member 140 disposed to surround the outer periphery of the swirler 120 and guiding the eddy current Fs generated by the swirler 120, An inner guide member 150 disposed inside the outer guide member 140 to form a vortex flow passage Ps through which the vortex Fs generated by the sweller 120 passes between the outer guide member 140 and the outer guide member 140, A plurality of vortex control plates 170 installed on the outer guide member 140 for controlling the vortex Fs passing through the vortex flow passage Ps and a plurality of vortex control plates 170 installed on the outer guide member 140 for controlling vortex And an external air guide unit 180 for guiding the air to the outside.

Specifically, the exhaust pipe 10 is a pipe for sucking contaminated air through an inlet opening at the lower end thereof and discharging the polluted air to the outside, and may be formed of various kinds of pipes such as a flexible pipe or a metal pipe generally known. The contaminated air can be sucked into the exhaust pipe 10 by natural negative pressure and is sucked into the exhaust pipe 10 by an exhaust fan such as a sirocco fan 20 installed in the exhaust pipe 10. [ It may be forced inhalation. 1, the sirocco fan 20 may be installed near the suction port of the exhaust pipe 10, but it is not limited thereto and may be installed near the exhaust port of the exhaust pipe 10.

The driving unit 110 is connected to the swirler 120 to provide power for rotating the swirler 120. The driving unit 110 may include a driving motor 111 and a rotating shaft 112 connected to the driving motor 111. The driving motor 111 may be installed in the exhaust pipe 10, but is not limited thereto. The rotating shaft 112 is coupled to a rotating shaft coupling part 127 provided at a rotating center part of the rotating plate member 121 of the swirler 120 as described later. 1, when the sirocco fan 20 is installed near the suction port of the exhaust pipe 10, the driving unit 110 rotates the sirocco fan 20 together with the sweller 120 . When the sirocco fan 20 is installed near the outlet of the exhaust pipe 10, a separate driving motor for rotating the sirocco fan 20 is provided.

However, the driving unit 110 having the above-described configuration is illustrative and may have various configurations capable of providing power for rotating the sweller 120, and the mounting position is not limited to the above. For example, the driving unit 110 may be installed inside or outside the exhaust pipe 10 by a means such as a bracket, and may rotate the swirler 120 through power transmission means such as a belt or a gear.

The swirler 120 serves to generate a vortex Fs that forms an air curtain around the exhaust flow Fe toward the exhaust pipe 10 by being disposed near the suction port of the exhaust pipe 10 A rotating plate member 121 provided so as to be rotatable near the suction port of the exhaust pipe 10 and a plurality of blades 124 provided on the rotating plate member 121.

The rotating plate member 121 may be formed in a disc shape having a diameter larger than the diameter of the exhaust pipe 10. The rotation plate member 121 can be disposed near the suction port of the exhaust pipe 10 such that the rotation center axis Z thereof coincides with the central axis of the exhaust pipe 10. [ An exhaust hole 122 communicating with the exhaust pipe 10 is formed in the central region of the rotating plate member 121. The polluted air passes through the exhaust hole 122 and is sucked into the exhaust pipe 10.

The rotating plate member 121 is connected to the driving unit 110 and rotated. The rotation shaft member 121 is provided with a protruding boss-shaped rotation shaft coupling unit 127 and the rotation shaft 112 of the driving motor 111 is coupled to the rotation shaft coupling unit 127 . Specifically, a rotation shaft insertion hole 128 is vertically formed at the center of the rotation shaft engagement portion 127, and the rotation shaft 112 of the drive motor 111 is inserted into the rotation shaft insertion hole 128, And is tightly coupled by a screw 129. The exhaust hole 122 may be formed around the rotating shaft engaging part 127. The rotating shaft engaging part 127 may be formed by a plurality of connecting parts 126 radially crossing the exhaust hole 122, And may be connected to and supported by the base 121.

The rotary plate member 121 is provided with a cylindrical first exhaust passage forming member 123 which surrounds the exhaust hole 122 to form an exhaust passage Pe communicating with the exhaust pipe 10, May be provided. The first exhaust passage forming member 123 may have an inner diameter larger than the outer diameter of the exhaust pipe 10 and may be provided on a surface of the rotating plate member 121 facing the exhaust pipe 10, Meanwhile, the lower end of the exhaust pipe 10 may be extended to the upper surface of the rotating plate member 121, and in this case, the first exhaust passage forming member 123 may not be required.

The plurality of blades 124 serve to rotate together with the rotating plate member 121 to generate an air flow Fa so that the air flow Fa generated by the plurality of blades 124 is rotated by a rotating vortex And the vortex Fs serves as an air curtain surrounding the exhaust flow Fe toward the exhaust pipe 10. [ This will be described later.

The plurality of vanes 124 may be fixedly installed on the surface of the rotary plate member 121 on the side of the exhaust pipe 10 and may be radially arranged around the exhaust hole 122 and the exhaust passage forming member 123. . Each of the plurality of blades 124 may have a shape rising from the upper surface of the rotating plate member 121 and extending in the radial direction. The inner ends of the vanes 124 may be separated from the outer circumferential surface of the exhaust passage forming member 123 by a predetermined distance. The outer ends of the vanes 124 may protrude from the outer edge of the rotating plate member 121 by a predetermined length. That is, the plurality of blades 124 may be formed to have an outer diameter larger than the outer diameter of the rotating plate member 121.

A first guide member 131 extending downward in parallel with the rotation center axis Z may be installed at the outer edge of the rotation plate member 121. The first guide member 131 may be formed in a cylindrical shape having a predetermined outer diameter, and the outer diameter of the first guide member 131 may be the same as the outer diameter of the rotating plate member 121. The first guide member 131 is fixed to the rotation plate member 121 so as to rotate together with the rotation plate member 121. For example, the upper end of the first guide member 131 may be fixed to the outer edge of the rotation plate member 121.

When the outer ends of the plurality of vanes 124 are protruded by a predetermined length from the outer edge of the rotating plate member 121 as described above, the outer ends of the vanes 124 are connected to the first guide member 131 , And each of the plurality of vanes 124 may be formed in a "? &Quot; shape.

In addition, a second guide member 132 surrounding the plurality of blades 124 may be attached to an outer end of the plurality of blades 124. The second guide member 132 may be formed in a cylindrical shape having an inner diameter larger than the outer diameter of the first guide member 131. That is, the plurality of vanes 124 are fixedly installed between the first guide member 131 and the second guide member 132, so that the rotation plate member 121, the first guide member 131, The blade 124 and the second guide member 132 rotate together. The lower end of the second guide member 132 may be positioned at the same height as the lower end of the first guide member 131.

The swirler 120 may further include a third guide member 133 installed to cover an upper portion of the plurality of vanes 124. The third guide member 133 is attached and fixed to the upper end of the plurality of vanes 124 to rotate together with the plurality of vanes 124. The third guide member 133 has an inner diameter larger than the outer diameter of the exhaust passage forming member 123 and has an annular plate shape having an outer diameter larger than the outer diameter of the rotating plate member 121. The outer edge portion of the third guide member 133 is fixedly coupled to the upper end of the second guide member 132. Accordingly, a predetermined gap is formed between the outer circumferential surface of the exhaust path forming member 123 and the inner circumferential surface of the third guide member 133, and external air flows through the gap between the rotating plate member 121 and the third guide member 133, Member 133 as shown in Fig.

An air flow path Pa in a direction parallel to the rotation center axis Z is formed between the first guide member 131 and the second guide member 132, The vane 124 is installed between the first guide member 131 and the second guide member 132 and generates vortex Fs by rotating the air flowing into the air flow passage Pa, The vortex Fs serving as an air curtain surrounding the exhaust flow Fe rising toward the exhaust pipe 10.

The vertical height of the first guide member 131 and the second guide member 132 is set to be greater than the vertical height of the first guide member 131 and the second guide member 132 in order to form the air- Is larger than the distance between the first guide member 131 and the second guide member 132. [ It is preferable that the vertical height of the second guide member 132 is higher than the vertical height of the first guide member 131. Accordingly, the upper end of the second guide member 132 extends to a position higher than the upper surface of the rotating plate member 121.

As described above, the swirler 120 of the local exhaust system 100 according to the present invention is provided with the first guide member 131 and the second guide member 132 to have a narrow width in the radial direction and a height in the vertical direction The formation of the high air flow passage Pa has an advantage that the swirling flow Fs passing through the air flow passage Pa can proceed further in the direction parallel to the rotation center axis Z, .

On the other hand, the configuration of the sweller 120 shown in Figs. 1 and 2 is merely an example. That is, the sweller 120 may have various shapes.

The outer guide member 140 has a cylindrical shape extending a predetermined height in a direction parallel to the rotation center axis Z, for example, in a vertical direction while surrounding the outer periphery of the swirler 120. The outer guide member 140 is spaced apart from the outer circumferential surface of the swirler 120, specifically, the outer circumferential surface of the second guide member 132, and the upper end of the outer guide member 140 is horizontally As shown in FIG. Therefore, even if the swirler 120 rotates, the outer guide member 140 does not rotate.

The support plate 160 may be fixed to the exhaust pipe 10 and the sweller 120 may be installed at a predetermined distance from the bottom surface of the support plate 160 so as not to be disturbed by the support plate 160 Respectively. At least one, preferably a plurality of air inflow holes 162 may be formed in the support plate 160 to allow air to flow smoothly toward the sweller 120.

The outer guide member 140 may be formed in a cylindrical shape having a predetermined diameter. The height of the outer guide member 140 can be properly determined in consideration of the distance between the sweller 120 and the contamination source, the diameter of the sweller 120, and the like, for example, within a range of about 100 mm to 400 mm.

The outer guide member 140 having the above-described configuration is configured to swirl the vortex Fs generated by the plurality of blades 124 of the swirler 120 in a direction parallel to the rotation center axis Z, Thereby guiding the air curtain formed by the vortex Fs in the vertical direction, which will be described later.

The inner guide member 150 is disposed inside the outer guide member 140. The inner guide member 150 is installed to be fixed to the outer guide member 140. The inner guide member 150 is disposed between the inner guide member 150 and the outer guide member 140 in a radial direction A plurality of connecting members 155 may be installed. The inner guide member 150 is disposed below the swirler 120 and spaced apart from the swirler 120 by a predetermined distance so as not to interfere with the rotation of the swirler 120.

The inner guide member 150 is formed in a cylindrical shape having a diameter smaller than the diameter of the outer guide member 140 so that the inner guide member 150 and the outer guide member 140 are provided with the sweller 120 The vortex flow passage Ps in the vertical direction through which the vortex Fs generated by the vortex flow passage Ps passes is formed.

It is preferable that the vortex flow passage Ps has a shape in which the width in the radial direction is narrow and the height in the vertical direction is comparatively high in order to further improve the straightness in the direction of the rotation center axis Z of the vortex Fs. For this, the vertical height of the inner guide member 150 is preferably larger than the gap between the inner guide member 150 and the outer guide member 140.

The lower end of the inner guide member 150 may extend to a lower position than the lower end of the outer guide member 140. The inner guide member 150 not only forms the vortex flow passage Pa as described above but also a part of the vortex Fs passing through the vortex flow passage Pa flows inwardly toward the exhaust flow Fe It can prevent the water from flowing.

An annular fixing plate member 151 may be provided on the inner side of the inner guide member 150. The fixing plate member 151 may be horizontally disposed below the rotating plate member 121 of the swirler 120 at a predetermined interval from the rotating plate member 121.

Further, the fixing plate member 151 is fixed to the inner guide member 150. Specifically, the outer edge portion of the fixing plate member 151 may be fixed to the inner guide member 150. Therefore, the fixing plate member 151 does not rotate like the inner guide member 150.

A hollow 152 communicating with the exhaust hole 122 formed in the rotating plate member 121 is formed in the central region of the fixing plate member 151. The contaminated air in the exhaust region is discharged through the hollow 152, (122) and sucked into the exhaust pipe (10). The fixing plate member 151 is provided with a cylindrical second exhaust passage forming member 153 which surrounds the hollow 152 and forms an exhaust passage Pe communicating with the exhaust pipe 10 . The second exhaust passage forming member 153 may be provided on the upper surface and the lower surface of the fixing plate member 151 and may have an inner diameter larger than the outer diameter of the first exhaust passage forming member 123.

The fixing plate member 151 and the second exhaust passage forming member 153 are formed so that part of the vortex Fs generated by the swirler 120 is spaced apart from the gap between the swirler 120 and the inner guide member 150 Thereby preventing the exhaust gas from flowing toward the exhaust flow Fe.

The plurality of vortex control plates 170 are arranged at regular intervals in the outer guide member 140 along the circumferential direction. The vortex control plate 170 may be fixed to the lower end of the outer guide member 140 by using suitable fastening means such as screws or welding. The vortex control plate 170 may be integrally formed with the outer guide member 140.

The vortex control plate 170 has a plate shape bent at a predetermined angle? 1 from the lower end of the outer guide member 140 to the inner guide member 150 side. The plurality of vortex control plates 170 are installed such that the lower ends of the vortex control plates 170 are positioned at the same height as the lower ends of the inner guide members 150.

The plurality of vortex control plates 170 having the above-described configuration controls the vortex Fs passing through the vortex flow passage Ps between the inner guide member 150 and the outer guide member 140, I.e., the exhaust flow Fe, so that the exhaust flow Fe toward the exhaust pipe 10 can be stably formed.

More specifically, as a result of a lot of tests, it was found that the exhaust flow (Fe) was stabilized when the bent angle θ1 of the vortex control plate 170 was 30 ° to 70 °, The exhaust flow (Fe) was more stable at ~ 60 ° and the preferred result was that the exhaust flow (Fe) was the most stable at approximately 45 °.

In addition, when six to ten vortex control plates 170 are provided at regular intervals in the circumferential direction of the outer guide member 140, a favorable result that the exhaust flow (Fe) is stabilized can be obtained, The exhaust flow (Fe) was formed most stable when 8 were installed.

It is preferable that the sum of the circumferential widths W1 of each of the vortex control plates 170 is 20% to 40% of the circumferential length of the outer guide member 140 so that the exhaust flow Fe is stabilized And the exhaust flow (Fe) was most stable when the temperature was 30% ~ 35%.

For example, eight vortex control plates 170 are provided on the outer guide member 140 having a diameter of 300 mm, and a value obtained by summing the circumferential widths W1 of each of the vortex control plates 170 is referred to as an outer guide member The circumferential length of the outer guide member 140 is approximately 942 mm and the sum of the circumferential widths W1 of each of the eight vortex control plates 170 is approximately 311 mm The width W1 in the circumferential direction of each of the eight vortex control plates 170 is approximately 39 mm.

Various attempts have been made to further stabilize the exhaust flow (Fe). Among these attempts, when the outer air guide unit 180 having the following configuration is additionally provided in the outer guide member 140, the exhaust flow Fe is further stabilized and the exhaust efficiency is further improved I could.

The outer air guide unit 180 guides the air outside the outer guide member 140 toward the vortex Fs and is installed outside the lower end of the outer guide member 140.

Specifically, the external air guide unit 180 may include an external air passage forming member 181, a plurality of external air guide members 182, and a plurality of external air control boards 183.

The outer air passage forming member 181 has a cylindrical shape that extends a predetermined height in a direction parallel to the rotation center axis Z, for example, in the vertical direction, surrounding the lower end of the outer peripheral surface of the outer guide member 140. The outer air passage forming member 181 is spaced apart from the outer circumferential surface of the outer guide member 140 by a predetermined distance so that external air passes between the outer guide member 140 and the external air passage forming member 181 Is formed.

The plurality of external air guide members 182 are installed between the external guide member 140 and the external air passage forming member 181 to guide the external air in a direction parallel to the rotational center axis Z, And has a plate shape elongated in a direction parallel to the rotation center axis Z, for example, in the vertical direction. For example, the outer air guide member 182 may extend upwardly longer than the height of the outer air passage forming member 181. The plurality of outer air guide members 182 may be disposed at regular intervals along the outer circumferential surface of the outer guide member 140. For example, a plurality of external air guide members 182 may be installed at twice the number of the vortex control plate 170.

The plurality of outer air control plates 183 are disposed at a predetermined interval along the circumferential direction at the lower end of the outer air passage forming member 181. The plurality of external air control boards 183 may be fixedly installed at the lower end of the external air passage forming member 181 by using suitable fastening means such as screws or welding. The plurality of external air control panels 183 may be integrally formed with the external air passage forming member 181.

The plurality of external air control panels 183 are arranged in such a manner that external air passing between the external guide member 140 and the external air passage forming member 181 flows into the vortex Fs controlled by the plurality of vortex control plates 170 So as to form a flow corresponding to the flow. Accordingly, the plurality of outer air control panels 183 may be disposed at positions corresponding to the plurality of vortex control plates 183, respectively, and the number of the plurality of outer air control panels 183 may correspond to the number of the vortex control plates 170 ). ≪ / RTI >

The outer air control plate 183 has a plate shape bent at a predetermined angle? 2 from the lower end of the outer air passage forming member 181 toward the inner guide member 150 side. 2 of the plurality of external air control plates 183 may be 30 ° to 70 °, preferably approximately 40 ° to 60 °, and more preferably approximately 45 °. In particular, the angle of deflection (? 2) of the plurality of external air control plates 183 may be the same as the angle of deflection? 1 of the plurality of vortex control plates 170.

The sum of the circumferential width W2 of each of the plurality of outer air control plates 183 may be 20% to 40% of the circumferential length of the outer air passage forming member 181, preferably 30% To about 35%. Particularly, the circumferential width W2 of each of the plurality of outer air control plates 183 is equal to the circumferential width W1 of each of the plurality of vortex control plates 170, or the width W1 of each of the plurality of vortex control plates 170 Directional width W1 of the protruding portion.

The plurality of external air control boards 183 may be installed such that the lower ends of the plurality of external air control boards 183 are positioned lower than the lower end of the vortex control board 170.

The operation of the external air guide unit 180 having the above-described configuration will be described later.

Hereinafter, the operation of the local exhaust system 100 according to the embodiment of the present invention having the above-described structure, the formation of the vortex and the exhaust flow accordingly will be described.

Referring to FIG. 1, when the swirler 120 rotates by the driving unit 110, external air flows into the sweller 120 through a plurality of air inflow holes 162 formed in the support plate 160 An air flow Fa is generated. When the exhaust operation is performed through the exhaust pipe 10, the polluted air in the pollutant generating region A rises toward the exhaust hole 122 to form an exhaust flow Fe. The air flow Fa forms a vortex Fs which rotates along the direction of rotation of the vanes 124. This vortex Fs surrounds the exhaust flow Fe to produce the exhaust flow Fe Thereby forming an air curtain separating from the surroundings.

Although the vortex Fs forming the air curtain is shown as simply flowing downward in FIG. 1, the vortex flow in the direction of rotation of the swirler 120, for example, So as to descend toward the pollutant generating region A. [0064] As shown in Fig.

The vortex Fs formed by the vanes 124 passes through the air flow passage Pa formed between the first guide member 131 and the second side guide member 132 of the sweller 120 , The air flow path Pa is formed in a shape having a narrower radial width and a higher vertical height. Thus, the vortex Fs passing through the air flow passage Pa can proceed further in the direction parallel to the rotation center axis Z, that is, for example, in the vertical direction, so that the vortex Fs formed by the vortex Fs The air curtain can also be extended longer in the vertical direction.

The vortex Fs is guided in the vertical direction again by the outer guide member 140 in the direction of the rotation center axis Z while exiting from the lower end of the air flow passage Pa of the swirler 120. [ That is, the vortex Fs that has passed through the outlet of the air flow path Pa of the swirler 120 is blocked by the outer guide member 140 and can not spread widely, and the vortex Fs between the outer guide member 140 and the inner guide member 150 And is directed downward while rotating along the vortex flow passage Ps formed in the vortex flow passage Fs. Particularly, since the vortex flow passage Ps has a narrow radial width and a height in the vertical direction, the vertical directivity of the vortex Fs passing through the vortex flow passage Ps can be further improved . This means that the air curtain surrounding the exhaust flow Fe is formed longer in the vertical direction. Therefore, there is an advantage that the polluted air far from the exhaust pipe 10 can be more easily sucked and exhausted.

Further, if the air curtain is formed long in the vertical direction, the passage of the exhaust flow (Fe) surrounded by the air curtain becomes narrow, so that the exhaust flow Fe is also influenced by the rotating vortex Fs. Accordingly, since the exhaust flow Fe rises and rotates in the form of a spiral, it is advantageous in that it can be sucked and exhausted more smoothly into the exhaust pipe 10.

As described above, when the passage of the exhaust flow (Fe) surrounded by the air curtain becomes narrow, some of the vortex Fs interfere with the exhaust flow Fs, so that the exhaust flow Fe becomes unstable, Can be degraded.

However, in the local exhaust system 100 according to the present invention, the vortex flow path between the inner guide member 150 and the outer guide member 140 is formed by a plurality of vortex control plates 170 provided on the outer guide member 140, A part of the vortex Fs passing through the passage Ps can be suppressed from being directed toward the exhaust flow Fe.

The operation of the plurality of vortex control plates 170 is based on a result of a lot of tests, and the operation of the vortex control plate 170 is considered to result from the following combination of reasons.

First, since the distance between the inner guide member 150 and the vortex control plate 170 becomes gradually narrower downward, the speed of the vortex F is increased as the vortex Fs escapes through the narrowed passage. This further improves the straightness of the vortex Fs vertically downward near the lower end of the inner guide member 150 so that the phenomenon that a part of the vortex Fs is directed inward, that is, toward the exhaust flow Fe is suppressed It will be possible. In addition, the pressure near the lower end of the inner guide member 150 is lowered and balanced with the lower pressure of the exhaust flow Fe on the inner side, so that the phenomenon in which a part of the vortex Fs is directed inward may be suppressed.

Secondly, since a plurality of vortex control plates 170 are inclined toward the inner guide member 150, some vortices Fs are reflected on the outer circumferential surface of the inner guide member 140 along the inclined surfaces of the vortex control plate 170 By being outwardly directed, the phenomenon that some of the vortices Fs are directed inward may be reduced or suppressed.

As described above, the plurality of vortex control plates 170 control the vortex Fs passing through the vortex flow passage Ps to prevent some of the vortex Fs from going inward, that is, toward the exhaust flow Fe So that the exhaust flow (Fe) rising toward the exhaust pipe (10) can be stabilized and the exhaust efficiency is improved.

In the local exhaust system 100 according to the present invention, the outer air guide unit 180 is provided at the lower end of the outer guide member 140. When the local exhaust system 100 is operated, a flow of air is formed outside the outer guide member 140 by the rapid flow of the vortex Fs. At this time, external air flows into the passage between the external air passage forming member 181 of the external air guide unit 180 and the external guide member 140, and the external air introduced into the passage flows through the external air guide member 182 To the vortex Fs while being guided in a direction parallel to the rotational center axis Z of the swirler 120, that is, in the vertical direction. The flow of the external air joins with the vortex Fs and adds the direct current to the vortex Fs. In addition, some of the outside air is tilted inward by a plurality of outer air control panels 183 and is synchronized with the flow of the vortex Fs controlled by the plurality of vortex control plates 170.

As described above, the flow of the outside air guided by the outside air guide unit 180 not only gives an additional linearity to the vortex Fs passing through the vortex flow passage Ps, And the flow of the vortex Fs controlled by the vortex flow control valve 170, thereby facilitating the role of the plurality of vortex control plates 170. As a result, the exhaust flow (Fe) rising toward the exhaust pipe 10 can be further stabilized and the exhaust efficiency can be further improved.

In the meantime, although the above-described local exhaust system 100 is shown and described with reference to an example in which the rotation center axis Z of the swirler 120 is vertical, the present invention is not limited thereto. That is, the local exhaust system 100 according to the present invention may be installed such that the rotation center axis Z of the sweller 120 is horizontal or inclined, which will be described later in various embodiments.

On the other hand, when the pollutant generation area is relatively wide, it is possible to prevent the pollutant generation in a relatively wide working area such as a plating factory, a tire manufacturing factory, a semiconductor manufacturing factory, a welding workshop of a shipyard, an auto parts manufacturing factory, a soldering workshop, In the case where a large amount of air polluted by contaminants such as a substance, dust, or odor is generated, it is difficult to sufficiently exhaust such a large amount of polluted air by only one local exhaust system.

Hereinafter, various embodiments of a region exhausting apparatus capable of effectively exhausting contaminated air generated in a wide area using a plurality of local exhausting apparatuses having the above-described configuration will be described.

FIG. 5 is a perspective view showing an embodiment of a region exhausting apparatus using a plurality of local exhausting apparatuses, and FIG. 6 is a view for explaining the operation of the region exhausting apparatus shown in FIG.

Referring to FIGS. 5 and 6, the area exhaust apparatus 200 according to an embodiment of the present invention efficiently removes polluted air generated in a relatively wide working area by using a plurality of local exhaust apparatuses 100 As shown in Fig.

Specifically, the area exhaust apparatus 200 has a role of exhausting air contaminated by contaminants, for example, disposed in a region where contaminants are generated, for example, a relatively wide upper portion of the work table 40 .

The region exhaust apparatus 200 includes a plurality of local exhaust apparatuses 100 shown in FIGS. 1 to 4, a plurality of exhaust pipes 10, and a closure plate 210.

The plurality of local exhaust apparatuses 100 are disposed at a predetermined distance from the work table 40 on the work table 40. In more detail, the plurality of local exhaust systems 100 are disposed at predetermined intervals along the outer edge of the work table 40, and are arranged at predetermined intervals from the upper surface of the outer edge of the work table 40 Distance. Also, the plurality of local exhaust apparatuses 100 are disposed so as to face the worktable 40 positioned on the lower side, that is, the lower surface of which the vapors Fs are discharged, as shown in FIG. That is, the plurality of local exhaust systems 100 are installed such that the rotation center axis (Z in FIG. 1) is vertical. In addition, the distance between each of the plurality of local exhaust devices 100 may be approximately 2 cm to 10 cm, and preferably 3 cm to 7 cm. In addition, the distance between the upper surface of the outer edge of the work table 40 and the lower surface of the local exhaust device 100, that is, the vortex discharge surface may be approximately 50 cm to 150 cm.

For example, as shown in FIG. 4, if the upper surface of the work table 40 is rectangular, the plurality of local exhaust devices 100 are also arranged in a rectangular shape. If the top surface of the work table 40 is circular, the plurality of local exhaust apparatuses 100 may be arranged in a circular shape.

The plurality of exhaust pipes 10 are installed so as to communicate with the exhaust holes 122 formed in the central region of the rotating plate member 121 of each of the plurality of local exhaust units 100. The exhaust flow Fe of the polluted air passing through the exhaust hole 122 of the local exhaust system 100 is sucked into the intake port of the exhaust pipe 10 and is discharged to the outside through the exhaust port.

The shielding plate 210 is disposed adjacent to the lower surface of the plurality of local exhaust systems 100 and spaced apart from the lower surface of the plurality of local exhaust systems 100 by a predetermined distance. The distance between the upper surface of the cover plate 210 and the lower surface of the local exhaust apparatus 100 may be approximately 1 cm to 7 cm, preferably 1 cm to 3 cm.

The shielding plate 210 has a shape and an area corresponding to the shape and the width of the upper surface of the work table 40. More specifically, the cover plate 210 has the same shape as the top surface of the work table 40. For example, as shown in FIG. 4, if the upper surface of the work table 40 is rectangular, the cover plate 210 also has a rectangular shape. If the upper surface of the work table 40 is circular, the cover plate 210 may have a circular shape. The area of the covering plate 210 is preferably approximately the same as the area of the upper surface of the work table 40, but it is not necessary to exactly match the area.

The cover plate 210 is installed to cover a part of the lower surface of each of the plurality of local exhaust apparatuses 100 at a center side of the work table 40. That is, a part of the lower surface of the plurality of local exhaust devices 110 faces the covering plate 210 with a gap therebetween. Therefore, the remaining portion of the lower surface of the local exhaust system 100, which is not covered by the closure plate 210, is exposed outside the outer edge of the closure plate 210. At this time, the area of the lower surface of the local exhaust apparatus 100 covered by the covering plate 210 may be approximately 40% to 60% of the entire lower surface area of the local exhaust apparatus 100, and approximately 50% To 55%. If the area of the lower surface of the local exhaust system 100 covered by the closure plate 210 is smaller than 40% of the entire lower surface area of the local exhaust system 100, A portion of the vortex Fs may be directed toward the center of the work table 40. If the vortex Fs is larger than 60%, the exposed area of the exhaust hole 122 formed in the local exhaust system 100 becomes small, .

When the worktable 40 is very wide, a supplementary exhaust hole 212 is formed at the center of the shield plate 210, and the auxiliary exhaust hole 212 is passed through the auxiliary exhaust hole 212 An auxiliary exhaust pipe 30 for exhausting polluted air to the outside can be connected.

Hereinafter, the operation of the exhaust system 200 according to an embodiment of the present invention will be described.

Referring to FIG. 6, when a plurality of local exhaust apparatuses 100 are operated as described above, vortexes Fs rotating in the direction of rotation of the swirler 120 in each local exhaust apparatus 100 are formed do. Since the vortex Fs is enclosed only on the outer side of the closure plate 210 so as to surround the periphery of the work table 40 because a part of the lower surface of the local exhaust apparatus 100 is covered with the closure plate 210 . That is, the vortex Fs is not formed inside the work table 40. When the exhaust operation is performed through the exhaust pipe 10, the exhaust flow Fe is formed while the contaminated air generated in the work table 40 is raised toward the local exhaust device 100 located around the cover plate 210 .

As described above, the vortex Fs formed by the local exhaust apparatus 100 is formed to be long in the vertical direction to form an air curtain surrounding the periphery of the work table 40. At this time, the vortexes Fs generated in the plurality of local exhaust apparatuses 100 are continuously connected along the periphery of the workbench 40, so that the air curtain is formed to surround the entire workbench 40. The vapors Fs generated in the plurality of local exhaust apparatuses 100 are not formed in the inner side of the work table 40 by the cover plate 210 so that the exhaust flow Fe rising from the work table 40 can be prevented, Lt; / RTI > Particularly, the exhaust flow Fe can be stabilized by the vortex control plate 170 and the external air guide unit 180 of each of the plurality of local exhaust devices 100, and the exhaust efficiency of the polluted air can be improved.

On the other hand, when the work table 40 is very wide, the contaminated air generated at the center of the work table 40 is discharged to the outside through the auxiliary exhaust hole 212 formed at the center of the cover plate 210 and the auxiliary exhaust pipe 30 It is possible.

As described above, the zone exhaust apparatus 200 includes a plurality of local exhaust apparatuses 100 installed on an upper portion of a work table 40 where contaminated air is generated, By forming the air curtain surrounding the periphery, contaminated air generated in a relatively large area can be efficiently exhausted.

7 is a perspective view showing another embodiment of the region exhausting apparatus according to the present invention.

Referring to FIG. 7, a region exhaust apparatus 300 according to another embodiment of the present invention may also include a device (not shown) capable of efficiently exhausting polluted air generated in a relatively wide working area by using a plurality of local exhaust apparatuses 100 to be.

Specifically, the zone exhausting apparatus 300 is installed in an area where pollutants are generated, for example, a relatively large working room 50, and serves to exhaust polluted air generated in the working room 50 will be. Specifically, the zone exhaust apparatus 300 has a configuration that can be applied to a tunnel-shaped work room 50 having both ends open in the longitudinal direction and closed on both sides and the upper wall.

The region exhaust apparatus 300 includes a plurality of local exhaust apparatuses 100 shown in FIGS. 1 to 4 and a plurality of exhaust pipes 10.

The plurality of local exhaust apparatuses 100 are disposed at upper portions of open ends of the work chamber 50. In more detail, the plurality of local exhaust apparatuses 100 are disposed at predetermined intervals along the edge portions of the upper end wall 51 on the open end side of the work chamber 50, And is disposed at a predetermined distance upward from the upper surface of the upper wall 51. Also, the plurality of local exhaust apparatuses 100 are disposed so that the surface, that is, the lower surface, which discharges the vortex Fs as shown in Fig. 1, faces downward. That is, the plurality of local exhaust systems 100 are installed such that the rotation center axis (Z in FIG. 1) is vertical. In addition, the distance between each of the plurality of local exhaust devices 100 may be approximately 2 cm to 10 cm, and preferably 3 cm to 7 cm. In addition, the gap between the bottom surface of the local exhaust apparatus 100, that is, the vortex discharge surface and the upper surface of the upper wall 51 may be approximately 1 cm to 7 cm, preferably 1 cm to 3 cm.

Part of the lower surface of each of the plurality of local exhaust apparatuses 100, that is, the vortex exhaust surface is covered by the upper wall 51 of the working chamber 50. That is, a part of the lower surface of the plurality of local exhaust devices 110 faces the upper wall 210 at an interval. Therefore, the remaining part of the lower surface of the local exhaust system 100 not covered by the upper wall 51 is exposed outside the edge of the upper wall 51. The area of the lower surface of the local exhaust system 100 covered by the upper wall 51 may be approximately 40% to 60% of the total area of the lower surface of the local exhaust system 100, To 55%.

As described above, in the zone exhausting apparatus 300, the upper wall 51 of the operation chamber 50 functions as the blocking plate 210 of the zone exhausting apparatus 200 shown in FIGS. 4 and 5 do.

When the work chamber 50 is relatively wide, the auxiliary exhaust hole 52 is formed at the center of the upper wall 51 and the auxiliary exhaust hole 52 is passed through the auxiliary exhaust hole 52 An auxiliary exhaust pipe 30 for exhausting polluted air to the outside can be connected.

The zone exhaust apparatus 300 having the above-described configuration operates in the same manner as the operation of the zone exhaust apparatus 200 shown in Figs. 4 and 5, and the effect is the same.

In addition, the region exhaust apparatus 300 may be applied to a work chamber 50 having one end in the longitudinal direction and one end closed and the other end and the upper end blocked by the wall. In this case, the plurality of local exhaust apparatuses 100 Is provided only at the upper portion of the open end of the work chamber 50. [

FIG. 8 is a perspective view showing still another embodiment of the region exhausting apparatus according to the present invention, and FIG. 9 is a view for explaining the operation of the region exhausting apparatus shown in FIG.

8 and 9, the region exhaust apparatus 400 according to another embodiment of the present invention can efficiently remove polluted air generated in a relatively wide working area by using a plurality of local exhaust apparatuses 100 It is a device that can exhaust.

It may be difficult to install the local exhaust device 100 on the upper part of the working area where the contaminated air is generated. For example, when the working area in which contaminated air is generated is the plating tank 60 for performing the plating process, the object to be plated is immersed in the plating tank 60 from the upper part of the plating tank 60, It is difficult to install the local exhaust device 100 on the upper part of the plating tank 60 because the step of lifting the completed object from the plating vessel 60 is accompanied.

The area exhaust apparatus 400 is provided with a plurality of local exhaust apparatuses (not shown) disposed horizontally in a working area where contaminated air is generated, for example, outside the plating tank 60, so as to efficiently exhaust polluted air in the above- 100) can be used to efficiently exhaust the contaminated air generated in the plating tank 60. [

Specifically, the area exhaust apparatus 400 includes a plurality of horizontally arranged local exhaust apparatuses 100 and a plurality of exhaust pipes 10. [

The plurality of local exhaust systems 100 have the same configuration as the local exhaust system 100 shown in FIGS. However, in the present embodiment, the plurality of local exhaust systems 100 are installed such that the rotation center axis Z is horizontal.

The plurality of local exhaust apparatuses 100 are provided at the edge sidewalls of the region where the contaminated air is generated, for example, at the outer sides of the upper ends of the two opposing sidewalls 61 of the plating tank 60, Z) are horizontal. If the width of the plating vessel 60 is relatively narrow, the plurality of local exhaust apparatuses 100 may be installed only on the outer side of the upper end of one of the side walls 61 of the plating vessel 60. The plurality of local exhaust apparatuses 100 are installed such that the vortex discharge surface faces the inside of the plating vessel 60.

The local exhaust apparatus 100 is installed such that a lower part of the vortex discharge surface is covered by the outer surface of the side wall 61 of the plating tank 60. That is, the lower part of the vortex discharge surface of the local exhaust system 100 faces the outer surface of the side wall 61 of the plating tank 60 at a predetermined distance. The gap between the outer surface of the side wall 61 of the plating tank 60 and the vortex discharge surface of the local exhaust apparatus 100 may be approximately 1 cm to 7 cm, preferably 1 cm to 3 cm. The lower part of the vortex discharge surface of the local exhaust apparatus 100 is covered by the side wall 61 of the plating tank 60 and the remaining upper part is covered by the upper end of the side wall 61 of the plating tank 60 Exposed upward. The area of the portion covered by the side wall 61 of the plating tank 60 facing the outer surface of the side wall 61 of the plating tank 60 in the vortex discharge surface of the local exhaust apparatus 100 100, and preferably about 50% to 55% of the total area of the swirling surface of the vortex discharge surface.

The plurality of local exhaust systems 100 are disposed at predetermined intervals along the upper end of the side wall 61. The distance between each of the plurality of local exhaust apparatuses 100 may be approximately 2 cm to 10 cm, and preferably 3 cm to 7 cm.

The plurality of exhaust pipes 10 are installed to communicate with the exhaust holes 122 formed in the central region of the rotary plate member 121 of each of the plurality of local exhaust units 100. The exhaust flow Fe of the polluted air passing through the exhaust hole 122 of the local exhaust system 100 is sucked into the intake port of the exhaust pipe 10 and is discharged to the outside through the exhaust port.

The area exhaust apparatus 400 may be installed not only in the plating tank 60 but also in a work area in which contaminated air is generated, for example, a welding workshop. In this case, the plurality of local exhaust systems 100 may be installed outside the upper end of one side edge of the welding workshop.

Hereinafter, the operation of the exhaust system 400 according to another embodiment of the present invention will be described.

Referring to FIG. 9, when a plurality of local exhaust systems 100 are operated as described above, vortices Fs rotating in the direction of rotation of the swirler 120 in each local exhaust system 100 are formed do. Since the lower part of the vortex discharge surface of the local exhaust system 100 is covered by the side wall 61 of the plating tank 60, Is formed only on the upper side of the plating bath (60). When the exhaust operation is performed through the exhaust pipe 10, the contaminated air generated in the plating tank 60 flows toward the local exhaust apparatus 100 located on both sides of the plating tank 60, and the exhaust flow Fe is formed do.

As described above, the vortex Fs formed by the local exhaust apparatus 100 is formed to be long in a direction parallel to the rotation center axis Z of the sweller 120, that is, in the horizontal direction, Thereby forming an air curtain covering the upper portion. At this time, the vortexes Fs generated in the plurality of local exhaust apparatuses 100 are continuously connected along the upper end of the side wall 61 of the plating vessel 60, so that the air curtain can move the entire upper portion of the plating vessel 60 As shown in Fig. Particularly, the exhaust flow Fe can be stabilized by the vortex control plate 170 and the external air guide unit 180 of each of the plurality of local exhaust devices 100, and the exhaust efficiency of the polluted air can be improved.

As described above, the zone exhausting apparatus 400 is provided with a plurality of local exhaust apparatuses 100 installed horizontally outside the plating tank 60 in which contaminated air is generated, for example, By forming the air curtain to cover, contaminated air generated in a relatively large area such as the plating tank 60 can be efficiently exhausted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of protection of the present invention should be determined by the appended claims.

10 ... exhaust pipe 30 ... auxiliary exhaust pipe
40 ... workbench 50 ... workshop
52 ... auxiliary exhaust hole 60 ... plating vessel
100 ... local exhaust device 110 .. driving part
111 ... drive motor 112 ... rotation shaft
120 ... Sweller 121 ... Rotating plate member
122 ... exhaust hole 123 ... first exhaust passage forming member
124 ... wing 126 ... connection
127 ... rotation shaft coupling portion 128 ... rotation shaft insertion hole
129 ... fixing screw 131 ... first guide member
132 ... second guide member 133 ... third guide member
140 ... outer guide member 150 ... inner guide member
151 ... fixing plate member 152 ... hollow
153 ... second exhaust passage forming member 155 ... connecting member
160 ... support plate 162 ... air inflow hole
170 ... vortex control plate 180 ... external air guide unit
181 ... outer air passage forming member 182 ... outer air guide member
183 ... External air control panel 200, 300, 400 ... area exhaust device
210 ... blind plate 212 ... auxiliary exhaust hole

Claims (23)

A driving unit;
A sweller which is disposed near the suction port of the exhaust pipe and generates a vortex that forms an air curtain around the exhaust flow toward the exhaust pipe by being rotated by the driving unit;
An outer guide member disposed to surround the outer periphery of the swirler and guiding the vortex generated by the swirler in a direction parallel to the rotation center axis of the swirler;
An inner guide member disposed on the inner side of the outer guide member and defining a vortex flow passage through which the vortex generated by the swirler passes between the inner guide member and the outer guide member;
Wherein the vortex flow control valve has a shape that is bent toward the inner guide member from the outer guide member and controls a vortex passing through the vortex flow passage so that a part of the vortex flows inward A plurality of vortex control plates for inhibiting steering; And
And an outer air guide unit installed on the outer guide member and guiding the air outside the outer guide member toward the vortex. The method according to claim 1,
The swirler includes a rotating plate member rotatably connected to the driving unit and having an exhaust hole communicating with the exhaust pipe at a central region thereof, and an air flow generating unit that is installed on the rotating plate member and rotates together with the rotating plate member, Wherein the plurality of vanes are arranged in a circumferential direction. 3. The method of claim 2,
The swirler includes a cylindrical first guide member provided at an outer side edge portion of the rotating plate member and an air flow passage formed between the first guide member and the first guide member so as to surround the outer ends of the plurality of blades And a third guide member installed to cover an upper portion of the plurality of vanes. The method of claim 3,
Wherein the plurality of blades are radially disposed around the exhaust hole and the outer ends of the plurality of blades protrude from the outer edge of the rotating plate member and extend to a lower end of the outer peripheral surface of the first guide member Local exhaust system. The method according to claim 1,
Wherein at least one air inflow hole is formed in the support plate so as to allow air to flow into the sweller,
Wherein the outer guide member is a cylindrical member spaced from an outer circumferential surface of the swirler, and the upper end portion is fixed to the support plate,
Wherein the inner guide member is a cylindrical member having a diameter smaller than the diameter of the outer guide member and is disposed below the sweller and spaced apart from the swirler and fixed to the outer guide member. Device. 6. The method of claim 5,
A plurality of connecting members extending in the radial direction and spaced apart in the circumferential direction are provided between the inner guide member and the outer guide member and the inner guide member is fixed to the outer guide member through the plurality of connecting members . 6. The method according to claim 1 or 5,
The rotating plate member is provided with a cylindrical first exhaust passage forming member which surrounds the exhaust hole and forms an exhaust passage communicating with the exhaust pipe,
An annular fixing plate member having a hollow in a central region is disposed at an inner side of the inner guide member with an interval from the sweller below the swirler,
Wherein the fixing plate member is provided with a cylindrical second exhaust passage forming member which surrounds the hollow and forms an exhaust passage communicating with the exhaust pipe. The method according to claim 1,
The lower end of the inner guide member extends to a lower position than the lower end of the outer guide member,
Wherein the plurality of vortex control plates are installed such that a lower end of the vortex control plate is positioned higher than or equal to a lower end of the inner guide member. The method according to claim 1,
Wherein the plurality of vortex control plates are fixedly provided at the lower end portion of the outer guide member at a predetermined interval along the circumferential direction at a predetermined interval and are bent from the lower end of the outer guide member toward the inner guide member by 30 ° to 70 ° And a second exhaust gas outlet. 10. The method of claim 9,
Wherein a sum of the circumferential widths of the plurality of vortex control plates is 20% to 40% of a circumferential length of the outer guide member. 10. The method of claim 1 or 9,
The external air guide unit includes:
An outer air passage forming member provided outside the lower end portion of the outer guide member to form a passage through which the outside air passes between the outer guide member and the outer guide member;
A plurality of outer air guide members provided between the outer guide member and the outer air passage forming member and guiding the outer air in a direction parallel to the rotation center axis of the swirler;
Wherein the outer air passage forming member is formed at a lower end portion of the outer air passage forming member at a predetermined interval along the circumferential direction and has a shape bent from the outer air passage forming member toward the inner guide member, And a plurality of external air control panels for allowing the outside air passing through the passages of the plurality of vortex control plates to form a flow corresponding to the vortex flow controlled by the plurality of vortex control plates. 12. The method of claim 11,
Wherein the outer air passage forming member has a cylindrical shape extending in parallel with a rotation center axis of the swirler and surrounding the outer circumferential surface of the outer guide member and being spaced from the outer circumferential surface of the outer guide member. Exhaust system. 12. The method of claim 11,
Wherein the plurality of outer air guide members have a plate shape elongated in a direction parallel to a rotation center axis of the swirler and are arranged at regular intervals from each other along the outer peripheral surface of the outer guide member. . 12. The method of claim 11,
Wherein the plurality of outer air control plates are disposed at positions corresponding to the plurality of vortex control plates, respectively, and the number of the plurality of outer air control plates is equal to the number of the vortex control plates. 12. The method of claim 11,
Wherein the plurality of outer air control plates have a plate shape bent by 30 ° to 70 ° from the lower end of the outer guide member toward the inner guide member and a value obtained by summing the circumferential widths of the plurality of outer air control plates, Is 20% to 40% of the circumferential length of the forming member. 1. A zone exhaust apparatus for a zone in which polluted air is generated,
A plurality of local exhaust systems according to claim 1; And
And a plurality of exhaust pipes connected to each of the plurality of local exhaust devices,
Wherein the plurality of local exhaust systems are installed such that the rotation center axis of the swirler is perpendicular to the upper portion of the region or the rotation center axis of the swirler is horizontal to the side portion of the region,
Wherein the plurality of local exhaust devices are installed such that a part of each of the vortex exhaust surfaces is obscured. 17. The method of claim 16,
The region is an open region at the top,
Wherein the plurality of local exhaust systems are arranged such that the center axis of rotation of the swirler is perpendicular to the top of the region and are spaced apart from one another along the outer edge of the region, Spaced apart,
And a cover plate having a shape and an area corresponding to the shape and the width of the upper surface of the area is provided at a lower portion of the plurality of local exhaust devices at intervals from the vortex discharge surface of the plurality of local exhaust devices,
Wherein a portion of the vortex discharge surface of each of the plurality of local exhaust units is covered by the cover plate and the remaining portion is exposed outside the edge of the cover plate. 18. The method of claim 17,
Wherein an auxiliary exhaust hole is formed at a central portion of the cover plate and an auxiliary exhaust pipe is connected to the auxiliary exhaust hole to exhaust polluted air passing through the auxiliary exhaust hole to the outside. 17. The method of claim 16,
The region is a region where both sides and the upper portion are closed by a wall and one end or both ends of the longitudinal direction are opened,
Wherein the plurality of local exhaust systems are arranged such that the center axis of rotation of the swirler is perpendicular to the open end or both ends of the region and are spaced apart along the edge of the upper wall of the region, Are disposed at a distance upward from the upper surface of the upper wall,
Wherein a portion of the vortex discharge surface of each of the plurality of local exhaust devices is obscured by the top wall and the remaining portion is exposed outside the edge of the top wall. 20. The method of claim 19,
Wherein an auxiliary exhaust hole is formed in a central portion of the upper wall and an auxiliary exhaust pipe is connected to the auxiliary exhaust hole to exhaust polluted air passing through the auxiliary exhaust hole to the outside. 17. The method of claim 16,
Said region having at least one sidewall,
Wherein the plurality of local exhaust systems are arranged such that the axis of rotation of the swirler is horizontal to the outside of the upper end of the side wall and are spaced apart from each other along the upper end of the side wall, ,
Wherein a lower part of the vortex exhaust surface of each of the plurality of local exhaust units is covered by the side wall and the other part is exposed to an upper end of the side wall. 22. The method of claim 21,
Said region having two opposing sidewalls,
Wherein the plurality of local exhaust units are installed outside the upper ends of the two sidewalls. 23. The method according to any one of claims 16 to 22,
Wherein the area of a portion of the vortex discharge surface of the local exhaust system is between 40% and 60% of the total area of the vortex discharge surface of the local exhaust system.

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