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WO2010104329A2 - Appareil de ventilation utilisant un rideau d'air, et ventilateur de soufflage - Google Patents

Appareil de ventilation utilisant un rideau d'air, et ventilateur de soufflage Download PDF

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Publication number
WO2010104329A2
WO2010104329A2 PCT/KR2010/001504 KR2010001504W WO2010104329A2 WO 2010104329 A2 WO2010104329 A2 WO 2010104329A2 KR 2010001504 W KR2010001504 W KR 2010001504W WO 2010104329 A2 WO2010104329 A2 WO 2010104329A2
Authority
WO
WIPO (PCT)
Prior art keywords
duct
rotary blade
air
inner duct
suction
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/KR2010/001504
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English (en)
Korean (ko)
Other versions
WO2010104329A3 (fr
Inventor
조수용
조종현
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.)
Gyeongsang National University GNU
Original Assignee
Gyeongsang National University GNU
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 Gyeongsang National University GNU filed Critical Gyeongsang National University GNU
Publication of WO2010104329A2 publication Critical patent/WO2010104329A2/fr
Publication of WO2010104329A3 publication Critical patent/WO2010104329A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Definitions

  • the present invention relates to a ventilator using an air curtain
  • the conventional ventilator was a type of suction or discharge in one direction when the blowing fan is rotated, but the present invention is to intake and discharge in one direction with one blower fan at the same time
  • the present invention is to intake and discharge in one direction with one blower fan at the same time
  • the present invention relates to a blower fan that can be used in the ventilation device using the air curtain to allow the suction and discharge in one direction at the same time.
  • FIG. 1 is a cross-sectional view of a conventional general ventilation apparatus
  • FIG. 2 is a perspective view of the general axial blower fan shown in FIG. 1
  • FIG. 3 is an air intake state diagram of the ventilation apparatus shown in FIG. 1
  • FIG. Fig. 5 shows a schematic view of a suction area line of a conventional ventilator.
  • the ventilator is a device that sucks harmful air located in front of the ventilator by a blower fan and discharges it to the rear.
  • FIG. 1 shows a conventional general ventilator.
  • the blower is provided with a rotary blade (3) driven by the electric motor 2
  • the fixed blade (4) is provided on the rear of the rotary blade (3)
  • the fixed blade (4) is an electric motor ( 2) and serves to guide the flow direction of air in a direction coinciding with the outlet (5).
  • the electric motor 2 is located at the center of the duct 6, and the rotary shaft 7 of the electric motor 2 is connected to the hub 8 on which the rotary blade 3 is mounted to rotate the rotary blade 3. .
  • the shape of the rotary blade 3 is different from the plate 8 in the radial direction from the hub 8 to the center of the rotary shaft 7. It is bent in the same direction and at the end of the rotary blade (3) close to the duct 6 is bent perpendicular to the direction of the rotation axis (7) has a shape of a twisted airfoil. Therefore, the air flows along the shape of the rotary blade (3).
  • a general ventilator is used to inhale and discharge harmful air. As shown in FIG. 3, only the air around the intake port 1 and the air on the side and the rear of the intake port 1 are inhaled.
  • 3 (a) shows a case where the inlet 1 of the duct 6 is straight, and
  • FIG. 3 (b) shows a case where the inlet 1 is open and has a bell mouth shape.
  • a large recirculation area (vortex) is formed at the tip of the inlet port 1 when air is sucked in.
  • This recirculation area causes the diameter of the inlet port 1 to be reduced, resulting in a significant decrease in suction efficiency. do.
  • most of the clean air in the rear of the inlet 1 as well as the source of contamination located in front of the inlet (1) is sucked in most of the contaminated air located in the front is not properly sucked and discharged, rather the contaminated air in the room There is a problem that the entire room becomes turbid by circulation.
  • Figure 3 (b) can be provided with a fallopian tube-shaped air inlet (9) so as to expand as the inlet (1) is opened. have.
  • the recirculation area formed at the tip of the suction port 1 disappears, thereby reducing the diameter of the duct 6.
  • the air inlet 9 is further extended, this problem is slightly solved, but it is difficult to make it large indefinitely due to space constraints.
  • FIG. 16 Another ventilator that solves the problem arising from the use of a simple duct is shown in FIG.
  • the air curtain 16 is made to block the air sucked from the upper portion of the inner duct 12 to improve the suction performance.
  • the suction blower 10 sucks and, on the contrary, the air curtain blower 11 serves to inject clean air, and for this purpose, the air flow path 13 is disposed between the inner duct 12 and the outer duct 14.
  • the air curtain is formed between the end of the inner duct 12 and the end of the outer duct 14 to improve the suction performance.
  • FIG. 5 shows a suction zone line of a conventional ventilator under the same operating conditions.
  • FIG. 5A shows the suction region line 17 of the ventilator shown in FIG. 2A
  • FIG. 5B shows the suction region line of the ventilator shown in FIG. 2B
  • 5 shows a suction area line 17 of the ventilator shown in FIG.
  • Figure 5 it can be seen that the case of Figure 5 (c) equipped with the air ketene shows the best suction performance.
  • a separate blower is required to form an air curtain, and the configuration of the ducts 12 and 14 for forming the air flow path 13, which is a supply passage of the air keten 16, is complicated, and the air curtain is 360.
  • There is also a problem that is not formed uniformly there is a problem that the size of the ventilation device as a whole, the cost is increased, there is a need for an improved device.
  • the present invention is to reduce the cost by operating only one blower to solve the problems occurring in the conventional ventilation system using the air keten as described above, the internal air duct for supplying air for making the air curtain It is installed between the outer duct and the outer duct so as to be a concentric tube, and the air curtain is formed equally along the circumference between the end of the inner duct and the end of the outer duct, and the blower is installed at any position of the inner duct. In order to effectively inhale and blow away distant air, it is to provide an excellent ventilation device with improved suction capacity.
  • the present invention is to provide a blower fan that is used in the above-mentioned ventilation device and connected to one electric motor to blow air in opposite directions.
  • the present invention the inner duct 110 and the outer duct 120; A hub 210 coupled to the rotation shaft 320 and disposed inside the inner duct 110; A suction rotary blade 220 formed to suck air through the inner duct 110 as the inner end is connected to the outer surface of the hub 210 and rotates; A rotary blade connecting portion 230 having an inner end connected to an outer end of the suction rotary blade 220; As the inner end is connected to the outer end of the rotary blade connecting portion 230 and rotates as opposed to the suction rotary blade 220 through the air flow path (P) formed between the inner duct 110 and the outer duct 120 A discharge rotary blade 240 formed to blow air in a direction; It relates to a ventilator using an air curtain comprising a.
  • the inner duct 110 has one side end such that a gap 110G is formed between the first inner duct 111 through which air is sucked through the one end and the other end of the first inner duct 111.
  • the second inner duct 112 is installed to be spaced apart from the other end of the first inner duct 111 by a predetermined distance, and the suction rotary blade 220 is installed in the inner duct 110, the discharge rotation
  • the wing 240 is disposed in the air flow path (P), the rotary blade connecting portion 230 is to be installed in the gap (110G) formed between the first inner duct 111 and the second inner duct 112.
  • the first inner duct 111 may be a fallopian tube-shaped inner guide tube 111-1 at a predetermined portion including one side end, and the outer duct 120 may have the inner side at a predetermined portion including one side end.
  • a fallopian tube-shaped outer guide tube 120-1 corresponding to the guide tube 111-1 may be formed.
  • the present invention includes an duct fixing part 310 having an inner end connected to an outer surface of the first inner duct 111 and having an outer end connected to an inner surface of the outer duct 120, wherein the air flow path
  • the duct fixing portion 310 may be formed with a vortex forming surface inclined with respect to the longitudinal direction of the air flow path (P), so that the air passing through the (P) to form a vortex, the rotating shaft 320
  • a guide surface having a curvature in the opposite direction to the suction rotary blade 220 is formed so that the air sucked through the inner duct 110 flows in the longitudinal direction of the inner duct 110, and the electric motor 330 and the A fixed blade 340 for fixing and fixing the inner surface of the inner duct 110;
  • the rotary blade connecting portion 230 adjacent to each other among the rotary blade connecting portion 230 is connected to each other, the first inner duct 111 and the second inner duct 112 as a whole.
  • the present invention is connected to the rotating shaft 320, the hub 210; An inner end is connected to an outer surface of the hub 210, and the suction rotary blade 220 is formed to blow air in one direction as the hub 210 rotates; A rotary blade connecting portion 230 having an inner end connected to an outer end of the suction rotary blade 220; An inner end is connected to the outer end of the rotary blade connecting portion 230, and as the hub 210 rotates so as to blow air in the opposite direction to the suction rotary blade 220 of the suction rotary blade 220 A discharge rotary blade 240 having a camber angle opposite to the camber angle; It relates to a blowing fan comprising a.
  • the present invention has the advantage that the cost can be reduced by using only one blower to escape the existing method of using two blowers.
  • the present invention uses only one blower, the formation of a supply flow path for supplying an air curtain has an advantage.
  • the present invention has the advantage that the concentricity between the outer duct and the suction duct is easily achieved so that the air curtain formed between the end of the inner duct and the end of the outer duct is completely the same along the circumferential surface, thereby improving the overall suction performance.
  • FIG. 1 is a cross-sectional view of a conventional general ventilator.
  • FIG. 2 is a perspective view of the general axial blower fan shown in FIG. 1; FIG.
  • FIG 3 is an air intake state of the ventilator shown in Figure 1;
  • Figure 4 is a cross-sectional view of a ventilation device using a conventional air curtain.
  • FIG. 5 is a schematic view of a suction zone line of a conventional ventilator
  • Embodiment 6 is a schematic diagram of Embodiment 1;
  • FIG. 7 is a perspective view of the blowing fan of the first embodiment
  • Fig. 8 is a front view of the blowing fan of the first embodiment as seen in the direction A of Fig. 7;
  • Fig. 9 is a side view of the rotary blade of the first embodiment in the direction B of Figs. 7 and 8;
  • first inner duct 111-1 inner induction pipe
  • hub 220 suction rotary blade
  • Example 1 relates to a ventilator using an air curtain according to the present invention.
  • FIG. 6 is a schematic view of Embodiment 1
  • FIG. 7 is a perspective view of the blower fan of Embodiment 1
  • FIG. 8 is a front view of the blower fan of embodiment 1 seen from the direction A of FIG. 7,
  • FIG. 9 is a view of FIGS. The side view of the rotary blade of Example 1 in the B direction of 8 is shown.
  • the first embodiment includes an inner duct 110, an outer duct 120, a hub 210, a suction rotary blade 220, a rotary blade connector 230, and a discharge rotary blade 240.
  • the inner duct 110 includes a first inner duct 111 and a second inner duct 112.
  • a first inner duct 111 has a fallopian tube-shaped inner guide tube 111-1 formed at a predetermined portion including one side end thereof.
  • the first inner duct 111 is formed in a cylindrical portion except for the inner guide pipe (111-1).
  • the inner guide pipe (111-1) is formed in the same shape along all the radial direction.
  • one end of the second inner duct 112 is spaced apart from the other end of the first inner duct 111 so that a gap 110G is formed between the other end of the first inner duct 111.
  • the second inner duct 112 is formed in a cylindrical shape having the same diameter as the cylindrical portion of the first inner duct 111.
  • the gap 110G forms a circular ring shape.
  • the outer duct 120 has a fallopian tube-shaped outer guide pipe 120-1 formed at a predetermined portion including one side end thereof.
  • An air flow path P for an air curtain between the inner duct 110 is formed. It is installed to surround the inner duct 110 along the longitudinal direction to form a.
  • the outer duct 120 is formed in a cylindrical shape in which a portion except the outer induction pipe 120-1 forms a concentric circle with a cylindrical portion of the inner duct 111.
  • the outer guide pipe (120-1) is formed in the same shape along all the radial direction.
  • the hub 210 is disposed inside the inner duct 110.
  • the hub 210 may have the same structure as the hub of a conventional axial blower fan.
  • the suction rotor blade 220 has an inner end connected to an outer surface of the hub 210.
  • the suction rotary blade 220 is installed in the inner duct 110, and rotates as the hub 210 rotates so that air is sucked in through the inner induction pipe 111-1 of the inner duct 110. It is formed to be. That is, referring to FIG. 9, the camber angle (not shown) of the suction rotary blade 221 defined by the angle formed by the tangent of the leading edge 221 of the suction rotary blade 220 and the tangent of the trailing edge 222 is positive. It is formed to have a value of (positive).
  • the rotary blade connecting portion 230 has an inner end connected to an outer end of the suction rotary blade 220.
  • the rotor blade connecting portion 230 is installed in the gap 110G formed between the first inner duct 111 and the second inner duct 112.
  • Rotating blade connecting portion 230 may be formed in an arc shape to be located in a predetermined section of the gap (110G), the distance between the inner end and the outer end of the rotary wing connecting portion 230 is the thickness of the first inner duct 111 2 is formed to be equal to the thickness of the inner duct (112).
  • the rotary blade connecting portion 230 may be formed integrally with the suction rotary blade 220 and the discharge rotary blade 240, or may be formed separately from the suction rotary blade 220 and the discharge rotary blade 240. When formed separately from the suction rotary blade 220 and the discharge rotary blade 240, the rotary blade connecting portion 230 may be a bolt or pin for fastening them.
  • the two rotary blade connectors 230 adjacent to each other may be connected to each other. That is, the rotary blade connecting portion 230 adjacent to each other among the rotary blade connecting portion 230 is connected to each other, so that the gap 110G and the concentric circle formed between the first inner duct 111 and the second inner duct 112 as a whole. It can form a ring shape. In this case, the air flowing in the inner duct 110 through the gap 110G and the air flowing through the air flow path P for the air curtain are prevented from interfering with each other.
  • discharge rotor blades 240 are installed in the air flow path (P) for the air curtain.
  • the discharge rotary blade 240 is connected to the outer end of the rotary blade connecting portion 230, the inner end is rotated as the rotary blade connecting portion 230 rotates the inner guide pipe (111-1) and the outer guide pipe (120-). It is formed to discharge air through the air flow path (P) formed by 1). That is, referring to FIG. 9, the camber angle (not shown) of the discharge rotary blade 240 defined by the angle formed by the tangent of the leading edge 241 and the tangent of the trailing edge 242 of the discharge rotary blade 240 is negative. It is formed to have a value of (negative).
  • the sign of the camber angle (not shown) of the discharge rotary blade 240 is opposite to the sign of the camber angle (not shown) of the suction rotary blade 220. Therefore, air flow is formed in the air flow path P in a direction opposite to air passing through the inner duct 110, and the air formed by the inner induction pipe 111-1 and the outer induction pipe 120-1 is formed. Air is blown out through the flow path P, and an air curtain is formed.
  • the air flow path (P) is provided with a duct fixing part 310.
  • the duct fixing part 310 has an inner end connected to the outer surface of the first inner duct 111 and the outer end is connected to the inner side of the outer duct 120.
  • the first inner duct 111 is fixedly installed inside the outer duct 120 by the duct fixing part 310.
  • the rotation shaft 320 is fixedly connected to the hub 21.
  • an electric motor 330 for driving the rotating shaft 320 is installed inside the inner duct 110.
  • the fixed blade 340 for connecting and fixing the inner surface of the electric motor 330 and the inner duct 110 is installed.
  • the fixed blade 340 is the suction rotor blade 220 so that the air sucked through the inner induction pipe (111-1) of the inner duct 110 flows in the longitudinal direction of the inner duct (110).
  • a guide surface (not shown) having a curvature in a direction opposite to that is formed. Ends of the fixed blades 340 opposite to the inner guiding pipe 111-1 of the inner duct 110 are installed such that their tangents face the longitudinal direction of the inner duct 110.
  • Embodiment 1 is provided with only one rotary blade consisting of the suction rotary blade 220 and the discharge rotary blade 240 can blow air in opposite directions. That is, since only one electric motor and a blowing fan can generate an air curtain, there is an advantage of reducing the cost.
  • Example 1 forms an air flow path (P) for making the air curtain, while the inner duct 110 and the outer duct 120 to be easily concentric pipe, the air curtain is one end and the outside of the inner duct 110 The same flow is formed 360 degrees between one end of the duct 120, there is an advantage that can be installed in any position of the inner duct 110 of the blowing fan.
  • P air flow path
  • the second embodiment relates to the blowing fan described in the first embodiment.
  • Embodiment 1 includes a hub 210, the suction rotary blade 220, the rotary blade connecting portion 230 and the discharge rotary blade 240.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention porte sur un appareil de ventilation utilisant un rideau d'air, un unique ventilateur de soufflage aspirant et déchargeant de l'air en même temps dans une direction, pour réduire les coûts et simplifier la configuration de l'appareil par rapport aux appareils de ventilation classiques dans lesquels un ventilateur de soufflage tourne pour aspirer ou décharger de l'air dans une direction. En outre, la présente invention porte sur ledit ventilateur de soufflage unique qui est utilisé dans l'appareil de ventilation utilisant un rideau d'air pour aspirer et décharger de l'air en même temps dans une direction.
PCT/KR2010/001504 2009-03-10 2010-03-10 Appareil de ventilation utilisant un rideau d'air, et ventilateur de soufflage Ceased WO2010104329A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0020479 2009-03-10
KR1020090020479A KR101034976B1 (ko) 2009-03-10 2009-03-10 에어커텐을 이용한 환기장치

Publications (2)

Publication Number Publication Date
WO2010104329A2 true WO2010104329A2 (fr) 2010-09-16
WO2010104329A3 WO2010104329A3 (fr) 2010-11-04

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PCT/KR2010/001504 Ceased WO2010104329A2 (fr) 2009-03-10 2010-03-10 Appareil de ventilation utilisant un rideau d'air, et ventilateur de soufflage

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WO (1) WO2010104329A2 (fr)

Families Citing this family (3)

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KR101446683B1 (ko) * 2013-11-11 2014-10-07 서울과학기술대학교 산학협력단 수평분사형 에어커튼을 통한 냄새제거장치
US10948199B2 (en) 2018-12-12 2021-03-16 Bsh Home Appliances Corporation Cooktop ventilation system having a dual direction flow blower/fan
RU2718638C1 (ru) * 2019-11-27 2020-04-10 Федеральное государственное бюджетное образовательное учреждение высшего образования Северо-Кавказский горно-металлургический институт (государственный технологический университет) Капельно-жидкостный уловитель

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Publication number Priority date Publication date Assignee Title
JPS6048432A (ja) * 1983-08-24 1985-03-16 Nippon Air Curtain Kk 局所汚染ガス除去装置
JPH0560088A (ja) * 1991-08-30 1993-03-09 Mitsubishi Heavy Ind Ltd 二重通路同時送風装置
JPH06341689A (ja) * 1993-06-01 1994-12-13 Mitsuya Soufuuki Seisakusho:Kk 局所排気装置
JPH1183097A (ja) * 1997-09-08 1999-03-26 Daikin Ind Ltd 送風機及び該送風機を用いた空気清浄装置並びに空気調和装置
JP3695373B2 (ja) * 2001-09-11 2005-09-14 ダイキン工業株式会社 給排気換気装置

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WO2010104329A3 (fr) 2010-11-04
KR101034976B1 (ko) 2011-05-19
KR20100102001A (ko) 2010-09-20

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