US2796241A - Air washing and cleaning apparatus - Google Patents

Air washing and cleaning apparatus Download PDF

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Publication number
US2796241A
US2796241A US533869A US53386955A US2796241A US 2796241 A US2796241 A US 2796241A US 533869 A US533869 A US 533869A US 53386955 A US53386955 A US 53386955A US 2796241 A US2796241 A US 2796241A
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United States
Prior art keywords
casing
air
housing
impeller
cleaning apparatus
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Expired - Lifetime
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US533869A
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Robert A Lhota
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SCHMIEG IND Inc
SCHMIEG INDUSTRIES Inc
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SCHMIEG IND Inc
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B01D47/08—Spray cleaning with rotary nozzles
    • B01D47/085—Spray cleaning with rotary nozzles with nozzles which are partly immersed in the washing fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
    • F24F8/133—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering by direct contact with liquid, e.g. with sprayed liquid

Definitions

  • the impeller is mounted for rotation about a vertically disposed shaft, and such shaft is supported by antifriction bearing assemblies.
  • a housing is provided which encloses the vertical shaft and the bearings, and within which a pressure is maintained about the pressure within the cleaning chamber, so that the moistened air cannot enter this housing and contaminate the bearing assemblies.
  • One of the primary objects ofthe present invention is to provide improvements in air washers and cleaners of the type mentioned in which the bearings supporting the drive shaft associated with the impeller lare protected against moisture contamination, and thus the life of the apparatus is considerably increased.
  • Figure l is ⁇ a side elevational view of an air washing and cleaning apparatus embodying features of the present invention.
  • Fig. 2 is a top plan view thereof
  • Fig. 3 is an enlarged vertical cross-sectional view taken substantially along the line 3-3 of Fig. 2;
  • Fig. 4 is a reduced cross-sectional view taken substan- 'tially along the line 4-4 of Fig. 3.
  • an illustrated form of the present invention is shown which comprises a vertical casing generally indicated at 1 and which, generally speaking, is cylindrical in form.
  • Such casing 1 comprises an upper cylindrical portion 2 which projects downwardly within a generally cylindrical base portion 3.
  • An integral air inlet conduit casing 4 is disposed adjacent the top of the lower portion 3, and in embracing and spaced relation to the downwardly projecting lower end of the cylindrical casing 2 to form an air inlet passageway around the lower end of the casing 2 and above 2,796,241 Patented June 18, 1957Y the upper end of the lower casing 3.
  • Such passage is indicated at 5, so that incoming air lsurrounds the lower end ofthe casing and' ent-ers the chamber formed by the lower casing 3 in the direction of the arrows.
  • the lower casing 3 is adapted to contain a bath of cleaning uid such as water ⁇ or a combination of' wat'er and other cleaning agent, as indicatedv at 6, the upper level of such bathbeing properly controlled.
  • a suitable cleaning outlet may be providedY in ther usual way.
  • a centrifugal fan assembly generally indicated'.l at 9 is mounted on the topcover 7, and such assembly includes a housing 10' provided with an outlet 11, withinf which an impeller 12 is rotatably mounted; Such irn'- peller 12 is mounted upon a drive shaft 13, which is-driven.
  • the inlet of the fan assembly is located. over they outlet 8,' -so that' air' from within the casing is' drawn ⁇ through the outlet 8- into the inlet of the impeller andi ⁇ dischargedthrough the outlet 11. creates a subatmospheric pressure within the chamber 1, and draws the dirt laden bath through the inlet pas sageway 5 and under the lower edge- 16 of ther downwardly projecting casing 2'.
  • a vertically disposed drive shaft 20 is fixed to the impeller 17 and is mounted within ball bearing antifriction assemblies 21 and 22, each of which may be of known constructions.
  • ball bearing assemblies are mounted within ared portions of a housing generally indicated at 23.
  • housing 23 includes a vertical tubular portion 24 having the outwardly flared conical portions 25 and 26 at opposite ends.
  • the bearing assembly 22 is supported within the ared portion 26, and the bearing assembly is supported within the flared portion 25.
  • the flared portion 25 has a laterally extending housing 27 which engages drive pulleys 28 and 29 and drive belt 3i).
  • the pulley 28 is keyed to drive shaftb20, and pulley 29 is keyed to the armature of a motor 30 which is mounted to the housing 1 by a suitable bracket 31.
  • the housing 27 projects outwardly through the casing 2, and has .an opening 32 to the atmosphere.
  • the flared portion 26 terminates adjacent its lower end in slightly spaced relation to the top or cover 19 of the impeller 17.
  • the housing 23 encloses the drive shaft and the bearing assemblies 21 and 22.
  • the impeller 17 As the impeller 17 is rotated at a high rate of speed, it picks water out of the bath and throws it laterally as indicated.
  • the cover plate 19 creates a fan effect, so that atmospheric air is drawn in 'through opening 32 ⁇ and through the housing where it is ejected from the lower end of the ilared portion 26 above the cover plate 19, as indicated by arrows 33.
  • pressure within the housing 23 is higher than the pressure within the chamber 1, so that the moist air cannot enter housing 23 and contaminate bearings 21 and 22.
  • An air seal is effectively created in the area adjacent the top of the cover plate 19 land the ared Operation of the fanportion 26 of the housing 23 to prevent ingress of such moist air.
  • bales 3S, 36 and 37 may be mounted within the casing 1 in the usual way for causing deflection of the air in' it-s passage therethrough.
  • An air washing and cleaning apparatus Comprising a vertical casing having a lower portion defining a liquid reservoir and an upper portion delining an outlet for cleaned air and adapted to receive therein operating mechanism for moving air from said inlet through said casing and outwardly through said outlet, means forming an air inlet passageway communicating within said casing above said lower portion, a liquid-lifting impeller mounted within said casing and adapted to project wi'thin said reservoir, means mounting said impeller for rotation about a vertical axis, said last-named means comprising a drive shaft operatively connected to said impeller, spaced bearing assemblies rotatably mounting said shaft, and housing means open at opposite ends substantially enclosing -said shaft and bearing assemblies, said housing means terminating at one open end closely adjacent the top of said impeller, and means communicating the upper end of said housing means with the atmosphere and means operatively associated with said housing for moving ⁇ air downwardly therethrough.
  • An air washing and cleaning apparatus comprising a vertical casing having a lower portion dening a liquid reservoir and an upper portiondening an outlet for cleaned air and adapted to receive therein operating mechanism for moving air upwardly in said casing, means forming an air inlet passageway communicating within said casing above said lower portion, means creating a subatmospheric pressure within Said upper casing portion, a liquidlifting impeller mounted within said casing and adaptedI -to project within said reservoir, means mounting said impeller for rotation about a vertical axis, said last-named means comprising a drive shaft operatively connected to said impeller, spaced bearing assemblies rotatably mounting said shaft, and hou-sing means open at opposite ends substantially enclosing said shaft and bearing assemblies, said housing means terminating at one open end closely adjacent the top of said impeller, and means creating a pressure above said first-named pressure within' said housing means to thereby prevent ingress of moist air from within said casing.

Description

um, E957' R LHQTA 229796,34@ Y AIR WASHING AND CLEANING APPARATUS Filed sepia., l2's 1955 I yf United States Patent O l 2,796,241 AIR WASHING ANDCLEANING APPARATUS Robert A. Lhota, Detroit, Mich., assignor to Schmieg Industries, Inc.acorporation of` Michigan Application September 121955Serial`No. 533,869
2 Claims. (.Cl 251-24)V The present` inventiorrrelates to improvementsy in air conditioning, and particularly to improvements in industriali washing of contaminated` air.
Heretofore, as` iuLliota.` Eatent No; 2,527,015, devices havebeen providedfor air'washing'and-cleaningin which a vertical casings is employed; and: within` which an impeller is mounted for rotation about a vertical axis. The impeller projectswithin-'a-liquidf-batlrandg as itfis rotated, it picks up the-liquid.l and throws it out in a horizontal direction. The contaminated air to bel cleanedisdrawn into the casing upwardly through the horizontall curtain of liquidlwhere itis washedand'cleaned. The cleaned airis then withdrawn anddisclarged through thetop Aof the casing. y
According to the present' invention, the impeller is mounted for rotation about a vertically disposed shaft, and such shaft is supported by antifriction bearing assemblies. It will be appreciated that, as the air is withdrawn upwardly through the housing, it carries with it a substantial amount of moisture which might collect on the bearings, and considerably reduces the lives thereof. According to the present invention, a housing is provided which encloses the vertical shaft and the bearings, and within which a pressure is maintained about the pressure within the cleaning chamber, so that the moistened air cannot enter this housing and contaminate the bearing assemblies. Thus the life of the unit is considerably enhanced.
One of the primary objects ofthe present invention is to provide improvements in air washers and cleaners of the type mentioned in which the bearings supporting the drive shaft associated with the impeller lare protected against moisture contamination, and thus the life of the apparatus is considerably increased.
Other objects of the present invention will become apparent from the following description, the drawing relating thereto and from the claims hereinafter set forth.
In the drawing in which like numerals are used to designate like parts in the several views throughout:
Figure l is `a side elevational view of an air washing and cleaning apparatus embodying features of the present invention;
Fig. 2 is a top plan view thereof;
Fig. 3 is an enlarged vertical cross-sectional view taken substantially along the line 3-3 of Fig. 2; and
Fig. 4 is a reduced cross-sectional view taken substan- 'tially along the line 4-4 of Fig. 3.
Referring to the drawing, an illustrated form of the present invention is shown which comprises a vertical casing generally indicated at 1 and which, generally speaking, is cylindrical in form. Such casing 1 comprises an upper cylindrical portion 2 which projects downwardly within a generally cylindrical base portion 3.
An integral air inlet conduit casing 4 is disposed adjacent the top of the lower portion 3, and in embracing and spaced relation to the downwardly projecting lower end of the cylindrical casing 2 to form an air inlet passageway around the lower end of the casing 2 and above 2,796,241 Patented June 18, 1957Y the upper end of the lower casing 3. Such passage is indicated at 5, so that incoming air lsurrounds the lower end ofthe casing and' ent-ers the chamber formed by the lower casing 3 in the direction of the arrows.
r[The lower casing 3 is adapted to contain a bath of cleaning uid such as water` or a combination of' wat'er and other cleaning agent, as indicatedv at 6, the upper level of such bathbeing properly controlled. A suitable cleaning outlet may be providedY in ther usual way.
The upper end'of the casing` 2f is enclosedV by acover 7 having a central outlet opening` 8` therein.
A centrifugal fan assembly generally indicated'.l at 9 is mounted on the topcover 7, and such assembly includes a housing 10' provided with an outlet 11, withinf which an impeller 12 is rotatably mounted; Such irn'- peller 12 is mounted upon a drive shaft 13, which is-driven.
by a belt and pulley assembly 14 by meansof an electric motor 15. The inlet of the fan assembly is located. over they outlet 8,' -so that' air' from within the casing is' drawn` through the outlet 8- into the inlet of the impeller andi` dischargedthrough the outlet 11. creates a subatmospheric pressure within the chamber 1, and draws the dirt laden bath through the inlet pas sageway 5 and under the lower edge- 16 of ther downwardly projecting casing 2'.
A rotating impeller, generally indicatedv at 17, is dis posed-within the casing and maybe of the form shown in the Lhota patent. Such impeller is generally cone shaped and has a' series of spirallyV arranged blades or vanes 18 formed on the peripheral surface thereof. The upper end of the cone-shaped propeller has a circular cover plate or disk member 19 mounted thereon for rotation therewith, and preferably such plate has a flanged periphery which extends slightly beyond the surface of the cone-shaped impeller.
A vertically disposed drive shaft 20 is fixed to the impeller 17 and is mounted within ball bearing antifriction assemblies 21 and 22, each of which may be of known constructions. Such ball bearing assemblies are mounted within ared portions of a housing generally indicated at 23. Such housing 23 includes a vertical tubular portion 24 having the outwardly flared conical portions 25 and 26 at opposite ends. The bearing assembly 22 is supported within the ared portion 26, and the bearing assembly is supported within the flared portion 25.
The flared portion 25 has a laterally extending housing 27 which engages drive pulleys 28 and 29 and drive belt 3i). The pulley 28 is keyed to drive shaftb20, and pulley 29 is keyed to the armature of a motor 30 which is mounted to the housing 1 by a suitable bracket 31. The housing 27 projects outwardly through the casing 2, and has .an opening 32 to the atmosphere.
The flared portion 26 terminates adjacent its lower end in slightly spaced relation to the top or cover 19 of the impeller 17.
The housing 23 encloses the drive shaft and the bearing assemblies 21 and 22. As the impeller 17 is rotated at a high rate of speed, it picks water out of the bath and throws it laterally as indicated. Also, the cover plate 19 creates a fan effect, so that atmospheric air is drawn in 'through opening 32 `and through the housing where it is ejected from the lower end of the ilared portion 26 above the cover plate 19, as indicated by arrows 33. As the housing is open at both ends and a subatmospheric pressure is created within the casing 1 by the fan 9, pressure within the housing 23 is higher than the pressure within the chamber 1, so that the moist air cannot enter housing 23 and contaminate bearings 21 and 22. An air seal is effectively created in the area adjacent the top of the cover plate 19 land the ared Operation of the fanportion 26 of the housing 23 to prevent ingress of such moist air.
The housing 23 is suitably supported within the casing by means of radially projecting beams or bars 34 which have their inner ends suitably lixed to the housing 23, and have their outer ends suitably fixed to the interior of the casing 1, such, for example, as by bolting or welding.
`- VThe usual bales 3S, 36 and 37 may be mounted within the casing 1 in the usual way for causing deflection of the air in' it-s passage therethrough.
Formal changes may be made in the specic embodiments of the invention described without departing from the spirit of the invention, the scope of which is commensurate with the appended claims.
' What is claimed is:
l 1. An air washing and cleaning apparatus Comprising a vertical casing having a lower portion defining a liquid reservoir and an upper portion delining an outlet for cleaned air and adapted to receive therein operating mechanism for moving air from said inlet through said casing and outwardly through said outlet, means forming an air inlet passageway communicating within said casing above said lower portion, a liquid-lifting impeller mounted within said casing and adapted to project wi'thin said reservoir, means mounting said impeller for rotation about a vertical axis, said last-named means comprising a drive shaft operatively connected to said impeller, spaced bearing assemblies rotatably mounting said shaft, and housing means open at opposite ends substantially enclosing -said shaft and bearing assemblies, said housing means terminating at one open end closely adjacent the top of said impeller, and means communicating the upper end of said housing means with the atmosphere and means operatively associated with said housing for moving `air downwardly therethrough.
2. An air washing and cleaning apparatus comprising a vertical casing having a lower portion dening a liquid reservoir and an upper portiondening an outlet for cleaned air and adapted to receive therein operating mechanism for moving air upwardly in said casing, means forming an air inlet passageway communicating within said casing above said lower portion, means creating a subatmospheric pressure within Said upper casing portion, a liquidlifting impeller mounted within said casing and adaptedI -to project within said reservoir, means mounting said impeller for rotation about a vertical axis, said last-named means comprising a drive shaft operatively connected to said impeller, spaced bearing assemblies rotatably mounting said shaft, and hou-sing means open at opposite ends substantially enclosing said shaft and bearing assemblies, said housing means terminating at one open end closely adjacent the top of said impeller, and means creating a pressure above said first-named pressure within' said housing means to thereby prevent ingress of moist air from within said casing.
References Cited in the file of this patent UNITED STATES PATENTS 1,815,951 Mills July 28, 1931 1,894,864 Hall `Tan. 17, 1933 1,976,956 MacLean Oct. 16, 1934 2,054,272 Stouder Sept. 15, 1936 2,713,477 Daman July 19, 1955
US533869A 1955-09-12 1955-09-12 Air washing and cleaning apparatus Expired - Lifetime US2796241A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173164A (en) * 1960-05-18 1965-03-16 Whirlpool Co Builtin vacuum cleaner
US3179387A (en) * 1956-10-08 1965-04-20 Ajem Lab Inc Gas washing apparatus
US3182972A (en) * 1961-12-12 1965-05-11 Carves Simon Ltd Apparatus for the aeration of liquids
US3208734A (en) * 1962-01-08 1965-09-28 Carves Simon Ltd Aeration of liquids
US3235235A (en) * 1961-10-16 1966-02-15 Ajem Lab Inc Gas washing apparatus
US3241820A (en) * 1962-12-11 1966-03-22 Carves Simon Ltd Apparatus for the aeration of liquids
US3307334A (en) * 1964-06-10 1967-03-07 Ajem Lab Inc Gas washers having improved gas flow characteristics
US4522766A (en) * 1981-11-20 1985-06-11 Satoshi Sunada Gas-liquid contacting device
US4749389A (en) * 1986-02-01 1988-06-07 Dupro Ag Method and apparatus for humidifying and purifying the air of a room
EP0638773A1 (en) * 1993-08-10 1995-02-15 Scat Equipment Pte Ltd. Air cleaning method, cleaning apparatus, and mist generator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1815951A (en) * 1929-09-06 1931-07-28 Bertram M Mills Air moistener
US1894864A (en) * 1928-11-02 1933-01-17 Charles L Sprinkle Air humidifier and washer
US1976956A (en) * 1932-11-18 1934-10-16 Turbo Mixer Corp Treatment of liquids with gases
US2054772A (en) * 1933-11-23 1936-09-15 Us Metallic Packing Co Check valve
US2713477A (en) * 1952-04-07 1955-07-19 Mining Process & Patent Co Dual aerating apparatus and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1894864A (en) * 1928-11-02 1933-01-17 Charles L Sprinkle Air humidifier and washer
US1815951A (en) * 1929-09-06 1931-07-28 Bertram M Mills Air moistener
US1976956A (en) * 1932-11-18 1934-10-16 Turbo Mixer Corp Treatment of liquids with gases
US2054772A (en) * 1933-11-23 1936-09-15 Us Metallic Packing Co Check valve
US2713477A (en) * 1952-04-07 1955-07-19 Mining Process & Patent Co Dual aerating apparatus and method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179387A (en) * 1956-10-08 1965-04-20 Ajem Lab Inc Gas washing apparatus
US3173164A (en) * 1960-05-18 1965-03-16 Whirlpool Co Builtin vacuum cleaner
US3235235A (en) * 1961-10-16 1966-02-15 Ajem Lab Inc Gas washing apparatus
US3182972A (en) * 1961-12-12 1965-05-11 Carves Simon Ltd Apparatus for the aeration of liquids
US3208734A (en) * 1962-01-08 1965-09-28 Carves Simon Ltd Aeration of liquids
US3241820A (en) * 1962-12-11 1966-03-22 Carves Simon Ltd Apparatus for the aeration of liquids
US3307334A (en) * 1964-06-10 1967-03-07 Ajem Lab Inc Gas washers having improved gas flow characteristics
DE1546645B1 (en) * 1964-06-10 1970-10-22 Ajem Lab Inc Gas scrubbing device with a rotating centrifugal spray generator
US4522766A (en) * 1981-11-20 1985-06-11 Satoshi Sunada Gas-liquid contacting device
US4749389A (en) * 1986-02-01 1988-06-07 Dupro Ag Method and apparatus for humidifying and purifying the air of a room
EP0638773A1 (en) * 1993-08-10 1995-02-15 Scat Equipment Pte Ltd. Air cleaning method, cleaning apparatus, and mist generator

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