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WO2016117921A1 - Appareil local d'échappement - Google Patents

Appareil local d'échappement Download PDF

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Publication number
WO2016117921A1
WO2016117921A1 PCT/KR2016/000580 KR2016000580W WO2016117921A1 WO 2016117921 A1 WO2016117921 A1 WO 2016117921A1 KR 2016000580 W KR2016000580 W KR 2016000580W WO 2016117921 A1 WO2016117921 A1 WO 2016117921A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide member
swirler
vortex
exhaust
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2016/000580
Other languages
English (en)
Korean (ko)
Inventor
김지하
박용찬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2016117921A1 publication Critical patent/WO2016117921A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/46—Air flow forming a vortex

Definitions

  • the present invention relates to a local exhaust device that sucks contaminated air and discharges it to the outside, and more particularly, to a local exhaust device that can improve exhaust efficiency by stabilizing the exhaust flow toward the exhaust pipe.
  • the local exhaust device is installed in a kitchen or home and restaurant kitchen where a lot of pollutants are generated, and is widely used to inhale polluted air and discharge it to the outside.
  • the conventional local exhaust device used for this purpose is installed in the exhaust pipe, there is a problem that the exhaust efficiency to suck and discharge the polluted air is sharply reduced as the distance between the source and the exhaust pipe becomes far.
  • the exhaust efficiency of the local exhaust device is reduced. Therefore, in order to improve the exhaust efficiency, it is desirable to install the local exhaust apparatus as close to the pollutant source as possible and to isolate the pollutant source from the surrounding space.
  • These local exhaust devices are generally equipped with a swirler which is installed on the inlet side of the exhaust pipe to form a vortex.
  • the air flow generated by the rotation of the swirler forms a vortex around the exhaust flow of the contaminated air that rises toward the inlet of the exhaust pipe along the central axis of the swirler, and the vortices thus formed are regions where pollutants are generated.
  • By acting as an air curtain to block the from the surrounding area it is possible to more efficiently suck the contaminated air into the exhaust pipe.
  • the conventional local exhaust device By the way, in the conventional local exhaust device, the vortex formed by the swirler spreads widely in the horizontal direction by the centrifugal force due to the rotation of the swirler, so that an air curtain having an umbrella shape spreading around the exhaust flow is formed. . Therefore, the conventional local exhaust device can obtain the effect of expanding the exhaust area horizontally, but the effect of expanding the exhaust area in the vertical direction was insufficient.
  • the present applicant has conducted various studies to extend the air curtain in the vertical direction so that the polluted air far from the exhaust pipe can be efficiently sucked and exhausted.
  • the passage of the exhaust flow is narrowed while the air curtain formed by the vortex extends in the vertical direction.
  • the vortex is rotated downward and spread outwards by centrifugal force, but for a number of reasons some air in the vortex is directed inward, ie towards the exhaust stream.
  • the present invention has been made to solve the conventional problems as described above, the exhaust pipe by installing a plurality of vortex control panel to suppress the partial air of the vortex inward to the lower end of the outer guide member surrounding the swirler for generating the vortex It is an object of the present invention to provide a local exhaust device that can improve the exhaust efficiency by stabilizing the exhaust flow toward the gas.
  • a drive unit
  • a swirler disposed near the suction end of the exhaust pipe and rotating by the drive unit to generate a vortex forming an air curtain around the exhaust flow toward the exhaust pipe;
  • An outer guide member disposed to surround an outer circumference of the swirler to guide the vortex generated by the swirler downward;
  • An inner guide member disposed inside the outer guide member to form a vortex flow passage through which the vortex generated by the swirler passes between the outer guide member;
  • the outer guide member is disposed at intervals along the circumferential direction, and has a shape that is bent from the outer guide member toward the inner guide member, and controls some of the vortices passing through the vortex flow passage so that some air of the vortices faces inwardly. And a plurality of vortex control panels for suppressing them.
  • the support plate is installed on the upper portion of the swirler spaced apart from the swirler
  • the outer guide member is a cylindrical member spaced apart from the outer edge of the swirler is installed so that the upper end is fixed to the support plate
  • the inner guide member is a cylindrical member having a diameter smaller than the diameter of the outer guide member, which is disposed below the swirler and spaced apart from the swirler, and may be fixed to the outer guide member.
  • a plurality of connecting members extending in the radial direction at intervals in the circumferential direction is installed between the inner guide member and the outer guide member, the inner guide member is fixed to the outer guide member through the plurality of connecting members.
  • At least one air inlet hole may be formed in the support plate to allow air to flow toward the swirler.
  • the height of the inner guide member may be greater than the distance between the inner guide member and the outer guide member so that the vortex flow passage has a shape in which the height in the vertical direction is higher than the width in the radial direction.
  • the lower end of the inner guide member may extend to a lower position than the lower end of the outer guide member.
  • the plurality of vortex control panel may be installed so that the lower end is located at the same height or higher than the lower end of the inner guide member.
  • the plurality of vortex control panel is fixed to the lower end of the outer guide member in the circumferential direction with 6 to 10 fixed intervals, from 30 to 90 ° toward the inner guide member from the lower end of the outer guide member It may have a curved plate shape.
  • the sum of the circumferential widths of each of the plurality of vortex control panels may be 20% to 40% of the circumferential length of the outer guide member.
  • outer guide member and the inner guide member may have a stepped shape so as to gradually increase in diameter while going downward.
  • the swirler is connected to the drive unit and rotated to form a vortex while rotating in conjunction with the rotating plate member and a rotating plate member formed in the central area and the exhaust suction hole communicating with the exhaust pipe in the center region and the rotating plate member It may include multiple wings for generating flow.
  • the outer edge of the rotating plate member is provided with a cylindrical first guide member extending downward, the plurality of wings extend from the upper surface of the rotating plate member to the outer peripheral surface of the first guide member, A second guide member having a cylindrical shape surrounding the plurality of wings and forming an air flow path between the first guide member may be attached.
  • the height of the first guide member and the second guide member is greater than the distance between the first guide member and the second guide member so that the air flow passage has a shape in which the height in the vertical direction is higher than the width in the radial direction. Can be.
  • the swirler may further include a third guide member covering an upper portion of the plurality of wings.
  • the rotary plate member may be provided with a cylindrical first exhaust passage forming member which is installed to surround the exhaust suction hole to form an exhaust passage communicating with the exhaust pipe.
  • an inner side of the inner guide member of the annular fixed plate member having a hollow formed in the center area is disposed at intervals from the swirler to the lower side of the swirler, the fixing plate member is installed to surround the circumference of the hollow
  • a second exhaust passage forming member having a cylindrical shape forming an exhaust passage communicating with the exhaust pipe may be provided.
  • the local exhaust device is installed in the horizontal direction on the inner surface of the side wall surrounding the space where the polluted air is generated, the exhaust pipe is inserted into the ventilation opening having a diameter smaller than the diameter of the ventilation opening,
  • the swirler of the local exhaust device generates vortices using the external air introduced through the gap between the exhaust pipe and the ventilation port to supply the inside of the space, and the polluted air inside the space is discharged to the outside through the exhaust pipe.
  • some air of the vortex passing through the vortex flow passage between the inner guide member and the outer guide member by the plurality of vortex control panels installed in the outer guide member is inward, that is, exhaust Heading towards the flow can be suppressed. Therefore, the exhaust flow toward the exhaust pipe can be stabilized, thereby improving the exhaust efficiency.
  • FIG. 1 is a cross-sectional view showing a local exhaust device according to an embodiment of the present invention.
  • FIG. 2 is a perspective view from above of the swirler shown in FIG. 1; FIG.
  • FIG. 3 is a perspective view from above of the outer guide member, the inner guide member and the vortex control panel shown in FIG.
  • FIG. 4 is a partial cross-sectional view showing a modification of the swirler shown in FIG.
  • 5 and 6 are partial cross-sectional views and perspective views showing modifications of the outer guide member and the inner guide member shown in FIG.
  • FIG. 7 is a cross-sectional view illustrating an example in which the local exhaust device shown in FIG. 1 is installed in a horizontal direction and used as a ventilator.
  • FIGS. 5 and 6 are photographs showing the exhaust flow in the local exhaust apparatus according to the embodiment shown in FIGS. 5 and 6.
  • FIG. 1 is a cross-sectional view showing a local exhaust device according to an embodiment of the present invention
  • Figure 2 is a perspective view from above of the swirler shown in Figure 1
  • Figure 3 is an outer guide member, inner guide shown in Figure 1 A perspective view from above of the member and the vortex control panel.
  • the local exhaust device 100 is disposed close to the driving unit 110, the suction end of the exhaust pipe 10 by rotating the vortex (Fs) Swallower 120 to generate, and an outer guide member 140 disposed to surround the outer circumference of the swirler 120 to guide the vortex Fs generated by the swirler 120 downward,
  • the 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 swirler 120 passes between the outer guide member 140 and the outer guide member 140.
  • a plurality of vortex control panels 170 disposed on the outer guide member 140 to control the vortices Fs passing through the vortex flow passage Ps to suppress some air from the vortices Fs inward. It is configured to include).
  • the exhaust pipe 10 is a pipe for sucking contaminated air and discharging it to the outside through the suction end opened at the bottom thereof, and may be made of various kinds of pipes such as a flexible pipe or a metal pipe generally known.
  • the contaminated air may be sucked into the exhaust pipe 10 by natural negative pressure, and also into the exhaust pipe 10 by an exhaust fan installed in the exhaust pipe 10, for example, a sirocco fan 20. Forced inhalation may be possible.
  • 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 disposed on the central axis of the exhaust pipe 10 and a rotation shaft 112 connected to the driving motor 111.
  • the rotating shaft 112 is coupled to the rotating shaft coupling portion 127 provided at the rotating center of the rotating plate member 121 of the swirler 120, as will be described later.
  • the driving unit 110 may also serve to rotate the sirocco fan 20 together with the swirler 120.
  • the driving unit 110 having the above configuration is illustrative, and may have various configurations capable of providing power for rotating the swirler 120, and the installation position thereof is not limited to the above.
  • the driving unit 110 may be installed inside or outside the exhaust pipe 10 by a means such as a bracket to rotate the swirler 120 through a power transmission means such as a belt or a gear.
  • the swirler 120 is disposed near the suction end of the exhaust pipe 10 and rotates to generate a vortex Fs that forms an air curtain around the exhaust flow Fe that rises toward the exhaust pipe 10.
  • it includes a rotating plate member 121 installed to be rotatable near the suction end of the exhaust pipe 10, and a plurality of wings 124 provided on the rotating plate member 121.
  • the rotating plate member 121 may be formed in a disk shape having a diameter larger than the diameter of the exhaust pipe 10.
  • the rotating plate member 121 is installed near the suction end of the exhaust pipe 10 so that the rotational central axis coincides with the central axis of the exhaust pipe 10.
  • An exhaust suction hole 122 is formed in the central region of the rotating plate member 121 to communicate with the exhaust pipe 10, and the contaminated air in the exhaust area passes through the exhaust suction hole 122 and is sucked into the exhaust pipe 10. do.
  • the rotating plate member 121 is connected to the driving unit 110 and rotated.
  • the rotating shaft coupling portion 127 of the boss-shaped protruding boss is provided at the rotation center of the rotating plate member 121, the rotating shaft 112 of the drive motor 111 is coupled to the rotary shaft coupling portion 127.
  • the rotation shaft insertion hole 128 is vertically penetrated at the center of the rotation shaft coupling portion 127, and the rotation shaft 112 of the driving motor 111 is inserted into the rotation shaft insertion hole 128 and then fixed. It is firmly coupled by the screw 129.
  • the exhaust suction hole 122 is formed around the rotary shaft coupling portion 127, and the rotary shaft coupling portion 127 is formed by a plurality of connecting portions 126 traversing the exhaust suction hole 122 in the radial direction. It is connected to and supported by 121.
  • a first exhaust passage forming member 123 having a cylindrical shape is formed in the rotating plate member 121 to surround the exhaust suction 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 installed on the top and bottom surfaces of the rotating plate member 121, respectively.
  • the lower end of the exhaust pipe 10 may extend to near the upper surface of the rotating plate member 121, in this case, the first exhaust passage forming member 123 is not required on the upper surface of the rotating plate member 121. You may not.
  • the plurality of wings 124 rotates together with the rotating plate member 121 to generate an air flow Fa.
  • the air flow Fa generated by the plurality of vanes 124 forms a vortex Fs that rotates downward while the vortex Fs rises toward the exhaust pipe 10. It acts as an air curtain surrounding (Fe).
  • the plurality of wings 124 may be fixedly installed on the upper surface of the rotating plate member 121, it may be disposed radially at a predetermined interval along the circumference of the exhaust suction hole 122. Each of the plurality of wings 124 may have a shape extending from the upper surface of the rotating plate member 121 and extending in the radial direction.
  • a first guide member 131 vertically extending downward may be installed at an outer edge of the rotating plate member 121.
  • the plurality of wings 124 may extend from the upper surface of the rotating plate member 121 to the outer circumferential surface of the first guide member 131, whereby each of the plurality of wings 124 is a letter "a". It may be formed in a shape.
  • the first guide member 131 may be formed in a cylindrical shape having a constant outer diameter, the outer diameter may be the same as the outer diameter of the rotating plate member 121.
  • the first guide member 131 is fixed to the rotating plate member 121 so as to rotate together with the rotating plate member 121.
  • an upper end of the first guide member 131 may be fixed to a bottom surface of the outer edge of the rotating plate member 121.
  • a second guide member 132 surrounding the plurality of wings 124 may be attached to an outer end of the plurality of wings 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.
  • the inner diameter of the second guide member 132 is larger than the outer diameter of the first guide member 131 by a width in the radial direction of the plurality of wings 124. That is, the plurality of blades 124 are fixedly installed between the first guide member 131 and the second guide member 132, and thus, the rotating plate member 121, the first guide member 131, and the plurality of blades 124.
  • the wing 124 and the second guide member 132 is rotated together.
  • a vertical air flow path (Pa) is formed between the first guide member 131 and the second guide member 132, the plurality of wings 124 is the first It is installed between the guide member 131 and the second guide member 132 to generate the vortex Fs by rotating the air introduced into the air flow passage (Pa), the vortex (Fs) generated in this way is an exhaust pipe ( It acts as an air curtain surrounding the exhaust flow (Fe) rising toward 10).
  • the vertical height of the first guide member 131 and the second guide member 132 is the first guide member It is preferable that the distance between the 131 and the second guide member 132 be larger.
  • the vertical height of the second guide member 132 is more preferably 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.
  • the swirler 120 of the local exhaust device 100 has a narrow width in the radial direction by the first guide member 131 and the second side guide member 132. Since the air flow path Pa having a high height in the vertical direction is formed, the vortex Fs passing through the air flow path Pa can travel further in the vertical direction, that is, in the axial direction.
  • the swirler 120 may further include a third guide member 133 covering an upper portion of the plurality of wings 124, and the third guide member 133 may include a plurality of wings 124.
  • Vortex (Fs) formed by the serves to prevent the upward flow.
  • the third guide member 133 has an inner diameter larger than the outer diameter of the exhaust pipe 10 and smaller than the outer diameter of the first guide member 131, and the outer edge portion is annularly fixed to the upper end of the second guide member 132. It may be made in the shape of a plate. Accordingly, a predetermined gap is formed between the outer circumferential surface of the exhaust pipe 10 and the inner circumferential surface of the third guide member 133, through which the air around the exhaust pipe 10 may flow into the plurality of wings 124. have.
  • the configuration of the swirler 120 illustrated in FIGS. 1 and 2 is only an example. That is, the swirler 120 may be configured in various shapes, and another example of the swirler 120 will be described with reference to FIG. 4 later.
  • the outer guide member 140 has a shape extending in a vertical direction while surrounding the outer circumference of the swirler 120.
  • the outer guide member 140 is disposed to be spaced apart from the outer edge of the swirler 120, specifically, the outer circumferential surface of the second guide member 132 by a predetermined distance, and an upper end thereof is disposed above the swirler 120. It may be fixed to the support plate 160 installed horizontally. Therefore, the outer guide member 140 does not rotate even if the swirler 120 rotates.
  • the support plate 160 may be fixedly installed, for example, in the range hood, and the swirler 120 is spaced apart from the bottom of the support plate 160 by a predetermined distance so that rotation is not hindered by the support plate 160. It is installed as possible. At least one, preferably a plurality of air inlet holes 162 may be formed in the support plate 160 to allow air to smoothly flow into the swirler 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 may be appropriately determined, for example, in the range of about 100 mm to 400 mm in consideration of the distance between the swirler 120 and the pollutant source and the diameter of the swirler 120.
  • the outer guide member 140 having the above configuration guides the vortices Fs generated by the plurality of wings 124 of the swirler 120 downward, thereby forming an air curtain formed by the vortices Fs. It extends in the vertical direction, that is, the axial 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 extends in a circumferential direction with a gap in the circumferential direction between the inner guide member 150 and the outer guide member 140.
  • a plurality of connection members 155 may be installed.
  • the inner guide member 150 is disposed below the swirler 120, and is spaced apart from the swirler 120 by a predetermined interval 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, and thus the swirler 120 is formed between the inner guide member 150 and the outer guide member 140.
  • the vortex flow passage Ps preferably has a shape having a narrow width in the radial direction and a relatively high height in the vertical direction in order to further improve the vertical straightness of the vortex Fs.
  • the vertical height of the inner guide member 150 is preferably larger than the distance 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 some air of the vortex Fs passing through the vortex flow passage Pa is inward, that is, the exhaust flow Fe. It can serve to prevent the flow to the side.
  • An annular fixed plate member 151 may be installed inside the inner guide member 150.
  • the fixing plate member 151 may be horizontally disposed at a predetermined distance from the rotating plate member 121 below the rotating plate member 121 of the swirler 120.
  • the fixing plate member 151 is fixedly installed on 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 suction hole 122 formed in the rotating plate member 121 is formed in the center region of the fixed plate member 151, and the contaminated air in the exhaust region is formed by the hollow 152 and the exhaust. Passed through the suction hole 122 is sucked into the exhaust pipe (10).
  • the fixed plate member 151 may be provided to surround the circumference of the hollow 152 and be provided with a second exhaust passage forming member 153 having a cylindrical shape to form an exhaust passage Pe communicating with the exhaust pipe 10. Can be.
  • the second exhaust passage forming member 153 may be installed on the top and bottom surfaces of the fixed plate member 151, respectively, and may have an inner diameter larger than the outer diameter of the first exhaust passage forming member 123.
  • the fixed plate member 151 and the second exhaust passage forming member 153 may have some air from the vortex Fs generated by the swirler 120 between the swirler 120 and the inner guide member 150. It also serves to block the flow out through the gap toward the exhaust stream (Fe).
  • the plurality of vortex control panels 170 are disposed at regular intervals along the circumferential direction of the outer guide member 140.
  • the plurality of vortex control panels 170 may be fixedly installed at the lower end of the outer guide member 140 using a suitable fixing means, for example, a fixing screw 172.
  • the plurality of vortex control panel 170 may be fixed to the lower end of the outer guide member 140 by welding.
  • the plurality of vortex control panel 170 may be formed integrally with the outer guide member 140.
  • the plurality of vortex control panels 170 has a plate shape which is bent inward from the lower end of the outer guide member 140, that is, toward the inner guide member 150.
  • the plurality of vortex control panel 170 is installed so that the lower end is located at the same height or higher than the lower end of the inner guide member 150.
  • a plurality of vortex control panel 170 having the above configuration by controlling the vortex (Fs) passing through the vortex flow passage (Ps) between the inner guide member 150 and the outer guide member 140 vortex (Fs) Some of the air to the inside, that is, to suppress the direction toward the exhaust flow (Fe), thereby increasing the exhaust flow (Fe) rising toward the exhaust pipe (10) can be formed stably. This will be described in detail later.
  • the exhaust flow Fe may be stabilized.
  • the eight vortex control panels 170 are installed in the outer guide member 140 having a diameter of 300 mm, and the sum of all the circumferential widths W of each of the vortex control panels 170 is added to the outer guide member ( When set to 33% of the circumferential length of 140, the circumferential length of the outer guide member 140 is approximately 942 mm, and the sum of the circumferential widths W of each of the eight vortex control panels 170 is approximately 311 mm. Since the circumferential width W of each of the eight vortex control panels 170 is approximately 39 mm.
  • FIG. 4 is a partial cross-sectional view showing a modification of the swirler shown in FIG.
  • the plurality of wings 124 ′ installed on the rotating plate member 121 of the swirler 120 extends from an upper surface of the rotating plate member 121 to an outer circumferential surface of the first guide member 131.
  • Can have The upper ends of each of the plurality of wings 124 ′ may be formed to be inclined to be gradually lowered away from the center of rotation.
  • the third guide member 133 ′ covering the upper portions of the plurality of wings 124 ′ may also have a shape inclined downward while going toward the outer circumference, that is, a shape inclined so that an interval between the rotating plate member 121 gradually decreases. have.
  • the air flow formed by the plurality of wings (124 ') ( The speed of Fa) is gradually increased toward the outer ends of the plurality of wings 124 ', which has the advantage that a more powerful vortex Fs can be formed.
  • 5 and 6 are partial cross-sectional views and perspective views showing modifications of the outer guide member and the inner guide member shown in FIG.
  • the outer guide member 140 ′ installed to surround the outer circumference of the swirler 120 may have a stepped shape to gradually increase in diameter while going downward.
  • the inner guide member 150 ′ installed inside the outer guide member 140 ′ may have a stepped shape such that the inner guide member 150 ′ gradually increases in diameter while going downward like the outer guide member 140 ′.
  • the swirler 120 when the swirler 120 is rotated by the driving unit 110, the swirler 120 is formed through a plurality of air inlet holes 162 formed in the support plate 160 from the periphery of the exhaust pipe 10. Air is introduced toward the air, and the air introduced in this way forms an air flow Fa by the plurality of wings 124 of the swirler 120.
  • the air flow Fa forms a vortex Fs that rotates along the rotational direction of the swirler 120, and the vortices Fs surround the exhaust area to separate the exhaust area from the surrounding area. Will form.
  • the polluted air in the exhaust area rises toward the exhaust pipe 10 to form the exhaust flow Fe.
  • the vortex Fs forming the air curtain simply flows downward, but in three dimensions in the direction of rotation of the swirler 120, for example, when viewed from above, the circumference of the exhaust flow Fe Rotate counterclockwise along the direction to the exhaust area.
  • the vortex Fs formed by the plurality of wings 124 passes through an air flow path Pa formed between the first guide member 131 and the second side guide member 132 of the swirler 120.
  • the air flow path Pa is formed to have a narrow width in the radial direction and a high height in the vertical direction. Accordingly, since the vortex Fs passing through the air flow path Pa can travel further in the vertical direction, that is, in the axial direction, the air curtain formed by the vortex Fs also extends longer in the vertical direction. Can be.
  • the vortex Fs is guided again by the outer guide member 140 in the vertical direction, ie in the axial direction, while exiting the lower end of the air flow path Pa of the swirler 120. That is, the vortex (Fs) passing through the outlet of the air flow passage (Pa) of the swirler 120 is blocked by the outer guide member 140 and does not spread widely between the outer guide member 140 and the inner guide member 150. Since it is directed downward while rotating along the vortex flow passage (Ps) formed in the, the straightness of the vortex (Fs) vertically increases.
  • the vortex flow passage Ps has a shape having a narrow width in the radial direction and a high height in the vertical direction, the vertical straightness of the vortex Fs passing through the vortex flow passage Ps can be further improved. .
  • the vortex flow passing through the vortex flow passage (Ps) between the inner guide member 150 and the outer guide member 140 by a plurality of vortex control panel 170 installed on the outer guide member 140 ( It can be suppressed that some of the air in Fs) is directed inward, that is, toward the exhaust stream Fe.
  • the action of the plurality of vortex control panel 170 is based on a result of a lot of tests, the action of the vortex control panel 170 is considered to be the result of a combination of the following reasons.
  • the gap between the inner guide member 150 and the vortex control panel 170 is gradually narrowed downwards, the speed becomes faster as some vortices Fs exit the narrowed passage. Accordingly, the straightness of the vertical downward direction of the vortex Fs near the lower end of the inner guide member 150 may be further improved, so that a phenomenon in which some air of the vortices Fs is directed inwards may be suppressed.
  • the gap between the inner guide member 150 and the vortex control panel 170 is gradually narrowed downward, the speed becomes faster as some vortices Fs exit the narrowed passage. Accordingly, the pressure near the lower end of the inner guide member 150 is lowered to balance the low pressure of the inner exhaust flow Fe, so that the phenomenon that some air in the vortex Fs is directed inward can be suppressed. will be.
  • the plurality of vortex control panels 170 controls the vortices Fs passing through the vortex flow passage Ps, thereby suppressing some air in the vortices Fs inward, that is, toward the exhaust flow Fe. As a result, the exhaust flow Fe rising toward the exhaust pipe 10 can be stabilized, thereby improving the exhaust efficiency.
  • FIGS. 5 and 6 are photographs showing the exhaust flow in the local exhaust apparatus according to the embodiment shown in FIGS. 5 and 6.
  • the exhaust flow Fe rotates in a vortex shape toward the local exhaust device 100. It is ascending smoothly, and it can be seen that the exhaust flow Fe is stably sucked into the exhaust pipe 10 without being disturbed even near the local exhaust device 100.
  • the local exhaust device 100 according to the present invention is shown and described with reference to the example installed in the vertical direction, the local exhaust device 100 according to the present invention is not limited to the installation direction. That is, the local exhaust device 100 according to the present invention may be installed in a horizontal direction or may be installed in an inclined direction.
  • FIG. 7 is a cross-sectional view illustrating an example in which the local exhaust device shown in FIG. 1 is installed in a horizontal direction and used as a ventilator.
  • the local exhaust device 100 As shown in FIG. 7, the local exhaust device 100 according to the present invention is installed in a horizontal direction and supplies a clean air to the inside of the contaminated space while discharging the contaminated air to the outside. Can play a role.
  • the local exhaust device 100 may be installed in a horizontal direction on the inner surface of the wall, for example, the side wall 30 surrounding the space where the polluted air is generated.
  • the side wall 30 is formed through the ventilation hole 32 to communicate with the outside.
  • the support plate 160 of the local exhaust device 110 may be fixedly installed on the inner surface of the side wall 30, and the air inlet hole 162 formed in the support plate 160 communicates with the ventilation hole 32.
  • the exhaust pipe 10 may be inserted into the ventilation hole 32 while having a diameter smaller than the diameter of the ventilation hole 32, and the driving motor 111 of the driving unit 110 may be installed in the exhaust pipe 10.
  • the rotating shaft 112 of the driving unit 110 may be coupled to the rotating plate member 121 of the swirler 120 of the local exhaust device 100 while being inserted into the exhaust pipe 10.
  • An exhaust fan such as the sirocco fan 20 may be installed in the exhaust pipe 10, and the sirocco fan 20 may be coupled to the rotation shaft 112 to be rotated.
  • outside clean air may flow into the swirler 120 through the gap between the exhaust pipe 10 and the ventilation opening 32, and the outside clean air introduced in this way is vortexed by the swirler 120 (Fs). Will form.
  • the contaminated air in the contaminated space forms an exhaust flow Fe and is discharged to the outside through the exhaust pipe 10.
  • the vortex Fs not only serves as an air curtain surrounding the exhaust flow Fe, but also serves to supply clean air into the contaminated space.
  • the local exhaust device 100 may serve as a ventilator, and in this case, the outside air may be discharged to the outside while supplying clean air from the outside into the inside of the contaminated space. Therefore, according to the local exhaust device 100 according to the present invention, there is an advantage that the inside of the contaminated space can be quickly ventilated with clean air.
  • the local exhaust device 100 according to the present invention is shown and described as acting as a ventilator installed on the inner surface of the side wall 30, the present invention is not limited thereto.
  • the local exhaust device 100 according to the present invention may be installed in a vertical direction on a ceiling wall in which a ventilation hole is formed in a wall surrounding a space where contaminated air is generated, and may serve as a fan.
  • the present invention can be used in domestic and industrial local exhaust.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

La présente invention concerne un appareil local d'échappement qui comprend : une partie d'entraînement ; un générateur de turbulence placé à proximité d'une partie extrémité d'aspiration d'un tuyau d'échappement, et qui est mis en rotation par la partie d'entraînement de manière à générer un tourbillon formant un rideau d'air autour de l'écoulement d'air d'échappement en direction du tuyau d'échappement ; un élément de guidage extérieur, placé de manière à entourer la périphérie extérieure du générateur de turbulence de manière à guider vers le bas le tourbillon généré par le générateur de turbulence ; un élément de guidage intérieur, placé à l'intérieur de l'élément de guidage extérieur de façon à former, entre les éléments de guidage intérieur et extérieur, un passage d'écoulement tourbillonnaire à travers lequel passe le tourbillon généré par le générateur de turbulence ; et une pluralité de plaques de commande de tourbillon, placées au niveau de l'élément de guidage extérieur à intervalles le long de la direction circonférentielle, lesdites plaques de commande de tourbillon présentant une forme pliée à partir de l'élément de guidage extérieur vers l'élément de guidage intérieur, et commandant le tourbillon traversant le passage d'écoulement tourbillonnaire de manière à empêcher une partie de l'air du tourbillon de s'écouler vers l'intérieur.
PCT/KR2016/000580 2015-01-20 2016-01-20 Appareil local d'échappement Ceased WO2016117921A1 (fr)

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KR1020150009331A KR101709278B1 (ko) 2015-01-20 2015-01-20 국소배기장치
KR10-2015-0009331 2015-01-20

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WO2016117921A1 true WO2016117921A1 (fr) 2016-07-28

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3553399A4 (fr) * 2016-12-06 2020-08-12 LG Electronics Inc. -1- Appareil de ventilation
US20220034548A1 (en) * 2020-07-29 2022-02-03 Irfan Saim Atatekin Vertical ventilation diffuser system to reduce transmission of airborne particles
GB2602797A (en) * 2021-01-12 2022-07-20 Intelligent Cooling Ltd Improved plenum for air delivery
JP2025514323A (ja) * 2022-04-25 2025-05-02 キム、ジハ 排気装置

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KR102104317B1 (ko) * 2017-05-02 2020-04-24 엘지전자 주식회사 국소 배기 장치 및 이에 구비된 와류형성장치
KR102506808B1 (ko) * 2021-01-29 2023-03-07 우석대학교 산학협력단 국소부 악취, 및 습기의 흡입률을 높인 와류형 흡입환기모듈
KR20230077882A (ko) 2021-11-26 2023-06-02 권봉수 위치기반의 중고물품 거래 서버 및 방법

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Publication number Priority date Publication date Assignee Title
EP3553399A4 (fr) * 2016-12-06 2020-08-12 LG Electronics Inc. -1- Appareil de ventilation
US11280501B2 (en) 2016-12-06 2022-03-22 Lg Electronics Inc. Ventilation apparatus
US20220034548A1 (en) * 2020-07-29 2022-02-03 Irfan Saim Atatekin Vertical ventilation diffuser system to reduce transmission of airborne particles
GB2602797A (en) * 2021-01-12 2022-07-20 Intelligent Cooling Ltd Improved plenum for air delivery
JP2025514323A (ja) * 2022-04-25 2025-05-02 キム、ジハ 排気装置

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KR101709278B1 (ko) 2017-02-23
KR20160089739A (ko) 2016-07-28

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