US2574852A - Humidifying apparatus - Google Patents

Humidifying apparatus Download PDF

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US2574852A
US2574852A US699670A US69967046A US2574852A US 2574852 A US2574852 A US 2574852A US 699670 A US699670 A US 699670A US 69967046 A US69967046 A US 69967046A US 2574852 A US2574852 A US 2574852A
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Prior art keywords
disc
fan
wheel
tube
air
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US699670A
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Sven W Wallin
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Svenska Flaktfabriken AB
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Svenska Flaktfabriken AB
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
    • B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
    • B01F23/2131—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using rotating elements, e.g. rolls or brushes
    • B01F23/21312—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using rotating elements, e.g. rolls or brushes with additional rotating elements mounted on the same axis, e.g. fans, for moving the gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
    • B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
    • B01F23/2131—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using rotating elements, e.g. rolls or brushes
    • B01F23/21311—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using rotating elements, e.g. rolls or brushes for spraying the liquid radially by centrifugal force

Definitions

  • the present invention relates to a method for humidifying of air or gas and an apparatus for carrying out the method.
  • the method according to the invention is mainly characterized inrotating the disc and thereby bringing the liquid on it to be thrown out in a thin film substantially in right angles to the direcion of fiowof the air to be humidified and forcing the air through this film.
  • Figure '1 is a-dia grammatical front view of an apparatus according to the invention.
  • Figure 2 is a section on the line Il-II of Figure 1;
  • Figure 3 is a part of Figure 2 on an enlarged scale
  • Figure 4 is a vertical section on the line IV-IV of Figure 2.
  • I designates an annular member fixed to a shell or tube 2 and two supporting legs 3 and 4 which latter support an electrical motor 5.
  • a fan-wheel 6 is mounted on the shaft of the motor 5, and has an imperforate hub portion 6a surrounded by flange 18 which extends therefrom. This hub compels the air to flow between the tube 2 and theflange I8 in a stream which is annular in cross section.
  • the shell 2 is provided with two parallel ears 1 (one of them only is shown in Figure l) in which a supporting member or sleeve 8 is swingably journalled on a pin la parallel with the motor axis and, seen in the direction of the flowing air,'situated in front of the fan-wheel 6.
  • a spindle 9 is journalled in two antifriction bearings 10 and H mounted in the supporting member 8 which consists of a supporting arm 8a and a central annular part 8b (see Figure 4).
  • the one end of the spindle 9 supports a disc l2 and the other a friction-wheel I3.
  • the central part 81) of the supporting member 8 further supports a swingably mounted pin M which is provided with stub shaft ( Figure 3) the free end of which supports a friction-disc l6 journalled on the stub shaft [5 by means of an anti-friction bearing ll.
  • the supporting member 8 is positioned relative to the flange 18 of the fan-wheel 6 in such a way as to locate the friction-wheels l3 and it inside the 5 Claims.
  • flange l8 (01 261-80) "flange l8.
  • the flange I 8 is provided with an internal annular track I9 on which the frictional wheel 16 rolls'when in operation.
  • the disc l2 will be driven from the fan- 'wheel 6 through the spindle 9 and the frictionwheels i3 and It, and track I9, as soon as the fan-wheel is put in rotation. Owing to the great difierence in diameter between the track 19 in the flange i8 and the wheel [3, the disc l2 always will rotate with a greater number of revolutions than the fan-Wheel.
  • the friction-wheels l3 and is are pressed towards the track H9 in the flange it by the weight of the supporting member 8 and the disc 12, which are pivoted on the spindle la in ears I. If the weight of the parts does not press together the friction surfaces of track 19 and wheels l3 and 16 with sufiicient force, the frictional contact may be increased by turning wingnut 22 on bolt 23 hired tothe shell- 2 to compress spring 20 against boss 24 on arm 8a. If the Weight of the parts is too great, the frictional contact may be decreased by locating the spring between the shell 2 and boss 24 to counteract the weight of the parts.
  • the arm 8a of the supporting member is preferably hollow and supports a pipe 25 intended for supplying water or another liquid to the disc.
  • the pipe 25 is. bent in the manner that it extends to the right hand end of the s pmole 5 ( Figures 2 and 3), which end is of a special shape facilitating spreading of the liquid on the disc :2.
  • the water is preferably supplied to the pipe 26 through a flexible tube 26 communicating with a reservoir, not shown in the drawing. That reservoir is preferably in known manner provided with automatic acting regulating means.
  • the embodiment above described is an example only for carrying out the invention.
  • the disc I 2 may also be brought to rotate by a separate drive-motor preferably positioned on a fixed support.
  • the drive-motor may in this case preferably be arranged so that the number of revolutions of the disc l2 may be regulated.
  • the regulation of the number of revolutions of the disc may also be performed in such a manner that the disc is driven by a friction-gear with variable gearing.
  • Apparatus for humidifying air comprising a tube, open at both ends, a propelling fan and motor fixedly connected to said tube and having a hub member thereon, a disc substantially coaxial with and driven by said fan at a velocity greater than that of the fan by means of gearing, a cylindrical supporting member for said disc enclosing said gearing and mounted between said disc and the hub member of the fan, said cylindrical supporting member having an arm pivotally secured to said tube, and a supply pipe for liquid arranged to pour liquid over said.
  • said fan, supporting member and disc being mounted substantially coaxially inside said tube with their axes parallel with the axis of the tube, and said hub member, supporting member and disc being of the same external diameter and together forming a substantially cylindrical body which provides between itself and the internal surface of the tube a substantially annular space for the air to pass through. 4 p
  • An apparatus for humidifying air comprising: an open ended tube having a propelling fan and motor located therein; said fan having a hub portion and an annular flange surrounding said which space liquid is sprayed by the disc transversely of the air stream, and an arm yieldingly secured to said tube extending across the annular space and carrying said sleeve.
  • An apparatus for humidifying air comprising: an open ended tube having a propelling fan and motor for driving air through the tube, said fan having a hub portion surrounded by impelling blades and an annular flange extending from and surrounding said hub; an arm yieldingly carried by said tube; a sleeve carried by said arm in substantially axial alignment with said flange, said sleeve being of substantially the same diameter as said flange; a shaft journalled in and extending from said sleeve, said shaft carrying a water distributing disc at one end and a driven wheel at its other end; an intermediate wheel engaging said flange and driven wheel; a shaft pivotally carried in said sleeve and journalling said intermediate wheel; and means for supplying liquid to said disc.

Description

Nov. 13, 19511 -s,w. WALL-1N I -2, 57
HUMIDIFYING APPARATUS Filed Sept. 27, 1946 2 SHEETSSHEET l 'INVENTOR Sven Werner Nal/in Attorney Patented Nov. 13, 1 951 'HUMIDIFYING APPARATUS Sven W. Wallin, Jonkoping, Sweden; assignor to A. B. Svenska Flaktfabriken, Stockholm,-
Sweden Applicationsep tember 27, 1946, Serial No. 699,67 In Sweden J une20, 1945 The present invention relates to a method for humidifying of air or gas and an apparatus for carrying out the method.
In the process of humidifying of air apparatus are known per se which consist of a rotatable disc for receiving. liquid and a fan driving air to be humidified towards the disc. The present invention relates to apparatus of this kind.
The method according to the invention is mainly characterized inrotating the disc and thereby bringing the liquid on it to be thrown out in a thin film substantially in right angles to the direcion of fiowof the air to be humidified and forcing the air through this film.
The invention is made clear in the accompanying drawings and by way of the following decription.
Referring to the drawings:
Figure '1 is a-dia grammatical front view of an apparatus according to the invention;
Figure 2 is a section on the line Il-II of Figure 1;
Figure 3 is a part of Figure 2 on an enlarged scale;
Figure 4 is a vertical section on the line IV-IV of Figure 2.
In Figures 1 and 2, I designates an annular member fixed to a shell or tube 2 and two supporting legs 3 and 4 which latter support an electrical motor 5. A fan-wheel 6 is mounted on the shaft of the motor 5, and has an imperforate hub portion 6a surrounded by flange 18 which extends therefrom. This hub compels the air to flow between the tube 2 and theflange I8 in a stream which is annular in cross section. The shell 2 is provided with two parallel ears 1 (one of them only is shown in Figure l) in which a supporting member or sleeve 8 is swingably journalled on a pin la parallel with the motor axis and, seen in the direction of the flowing air,'situated in front of the fan-wheel 6. A spindle 9 is journalled in two antifriction bearings 10 and H mounted in the supporting member 8 which consists of a supporting arm 8a and a central annular part 8b (see Figure 4). The one end of the spindle 9 supports a disc l2 and the other a friction-wheel I3. The central part 81) of the supporting member 8 further supports a swingably mounted pin M which is provided with stub shaft (Figure 3) the free end of which supports a friction-disc l6 journalled on the stub shaft [5 by means of an anti-friction bearing ll. The supporting member 8 is positioned relative to the flange 18 of the fan-wheel 6 in such a way as to locate the friction-wheels l3 and it inside the 5 Claims. (01 261-80) "flange l8. The flange I 8 is provided with an internal annular track I9 on which the frictional wheel 16 rolls'when in operation. By this arrangement the disc l2 will be driven from the fan- 'wheel 6 through the spindle 9 and the frictionwheels i3 and It, and track I9, as soon as the fan-wheel is put in rotation. Owing to the great difierence in diameter between the track 19 in the flange i8 and the wheel [3, the disc l2 always will rotate with a greater number of revolutions than the fan-Wheel.
The friction-wheels l3 and is are pressed towards the track H9 in the flange it by the weight of the supporting member 8 and the disc 12, which are pivoted on the spindle la in ears I. If the weight of the parts does not press together the friction surfaces of track 19 and wheels l3 and 16 with sufiicient force, the frictional contact may be increased by turning wingnut 22 on bolt 23 hired tothe shell- 2 to compress spring 20 against boss 24 on arm 8a. If the Weight of the parts is too great, the frictional contact may be decreased by locating the spring between the shell 2 and boss 24 to counteract the weight of the parts.
The arm 8a of the supporting member is preferably hollow and supports a pipe 25 intended for supplying water or another liquid to the disc. The pipe 25 is. bent in the manner that it extends to the right hand end of the s pmole 5 (Figures 2 and 3), which end is of a special shape facilitating spreading of the liquid on the disc :2. The water is preferably supplied to the pipe 26 through a flexible tube 26 communicating with a reservoir, not shown in the drawing. That reservoir is preferably in known manner provided with automatic acting regulating means.
The embodiment above described is an example only for carrying out the invention. The disc I 2 may also be brought to rotate by a separate drive-motor preferably positioned on a fixed support. The drive-motor may in this case preferably be arranged so that the number of revolutions of the disc l2 may be regulated. The regulation of the number of revolutions of the disc may also be performed in such a manner that the disc is driven by a friction-gear with variable gearing.
What I claim as new and desire to secure by Letters-Patent is:
1. Apparatus for humidifying air comprising a tube, open at both ends, a propelling fan and motor fixedly connected to said tube and having a hub member thereon, a disc substantially coaxial with and driven by said fan at a velocity greater than that of the fan by means of gearing, a cylindrical supporting member for said disc enclosing said gearing and mounted between said disc and the hub member of the fan, said cylindrical supporting member having an arm pivotally secured to said tube, and a supply pipe for liquid arranged to pour liquid over said. disc, said fan, supporting member and disc being mounted substantially coaxially inside said tube with their axes parallel with the axis of the tube, and said hub member, supporting member and disc being of the same external diameter and together forming a substantially cylindrical body which provides between itself and the internal surface of the tube a substantially annular space for the air to pass through. 4 p
2. Apparatus as specified in claim 1 wherein said disc is mounted on a spindle journalled in the cylindrical supporting members and, having a driven wheel thereon, and a second wheel is journalled on the supporting member between the driven wheel and an internal surface of said hub member, said driven wheel; second wheel and hub comprising the gearing.
3. An apparatus for humidifying air comprising: an open ended tube having a propelling fan and motor located therein; said fan having a hub portion and an annular flange surrounding said which space liquid is sprayed by the disc transversely of the air stream, and an arm yieldingly secured to said tube extending across the annular space and carrying said sleeve.
4. An apparatus as specified in claim 3 wherein said arm is biased in one direction by an adjustable spring.
I 5. An apparatus for humidifying air comprising: an open ended tube having a propelling fan and motor for driving air through the tube, said fan having a hub portion surrounded by impelling blades and an annular flange extending from and surrounding said hub; an arm yieldingly carried by said tube; a sleeve carried by said arm in substantially axial alignment with said flange, said sleeve being of substantially the same diameter as said flange; a shaft journalled in and extending from said sleeve, said shaft carrying a water distributing disc at one end and a driven wheel at its other end; an intermediate wheel engaging said flange and driven wheel; a shaft pivotally carried in said sleeve and journalling said intermediate wheel; and means for supplying liquid to said disc.
SVEN W. WALLIN.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 758,323 Lindqulst Apr. 26, 1904 1,730,866 .Sternberg Oct. 8, 1929 2,101,603 Stimson Dec. 7, 1937 FOREIGN PATENTS Number Country Date 580,388 Germany July 10, 1933
US699670A 1945-06-20 1946-09-27 Humidifying apparatus Expired - Lifetime US2574852A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US758323A (en) * 1903-09-11 1904-04-26 David Leonard Lindquist Friction-gear.
US1730866A (en) * 1927-05-27 1929-10-08 Arctic Nu Air Corp Humidifying apparatus
DE580388C (en) * 1930-06-03 1933-07-10 Siemens Schuckertwerke Akt Ges Air humidifier
US2101603A (en) * 1935-11-13 1937-12-07 Bahnson Co Humidifier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US758323A (en) * 1903-09-11 1904-04-26 David Leonard Lindquist Friction-gear.
US1730866A (en) * 1927-05-27 1929-10-08 Arctic Nu Air Corp Humidifying apparatus
DE580388C (en) * 1930-06-03 1933-07-10 Siemens Schuckertwerke Akt Ges Air humidifier
US2101603A (en) * 1935-11-13 1937-12-07 Bahnson Co Humidifier

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