US2937712A - Air de-contaminator - Google Patents

Air de-contaminator Download PDF

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US2937712A
US2937712A US762605A US76260558A US2937712A US 2937712 A US2937712 A US 2937712A US 762605 A US762605 A US 762605A US 76260558 A US76260558 A US 76260558A US 2937712 A US2937712 A US 2937712A
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air
enclosure
water
spray
particles
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James H Woods
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
    • 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

  • This invention relates to apparatus for cleaning or decontaminating atmospheric air and is a continuation-1npart of my pending application Serial No. 718,525,A now..
  • An object of the present invention is to purify atmospheric air by producing an agitated mist of said air and water and gravitationally separating the Washed air from thecOntaminated Water that may be directed to sewage disposal.
  • Another object of the invention is to draw the atmos phere through a spray of water and then to so .thoroughly agitate the same that foreign particles in the air become wetted and too heavy to rise in the atmosphere which, thereby, is cleansed.
  • the invention also has for-its objectsto provide such means Vthat are positive in operation, convenient in use, easilyqinstalled in a working position and easily disconnected therefrom, economical of manufacture, relatively simple, and of general superiority and serviceability.
  • Fig. l is a longitudinal sectional view of air de-contaminating apparatus showing afpreferrediembodiment of the present invention.
  • the airdecontaminatin'g' apparatus that is illustrated comprises,”generally', a' storm drain 5, an velongated en dopenihoriz'ontal enclosure 6, v ⁇ preferably above ground, and coveringlithefs'torm drain"5,' ai pair ⁇ of air andlgimpllrity ri'sers 7 spaced'longitudinally along the enclosure 6 and receptive from opposite ends of said enclosure of atmospheric air drawn into the enclosuremeans 8- to spray water across 'each 'end of the enclosure, land mans ⁇ 9 to intermiX said water and air entering the enclosure and direct the same, in the form of a mist, toward the middle of the enclosure.
  • the storm sewer S is of conventional construction and may be positioned below the ground surface 10, as shown, or may comprise an open ditch. In either case, the storm sewer is provided with an opening 11 to the surface 10 to expose water flow 12 in the drain from above and serving as a subsurface outlet vent for the enclosure 6.
  • the enclosure 6 is shown as an elongated duct or passageway disposed on the ground surface and overstanding the drain opening 11.
  • said enclosure is perferably longer than opening 11 and the ared ends 13 of the enclosure are, in part, defined by the ground sur- Acap 15;
  • Each riser 7 alsoaincludes a chamber 17v around the perforated portion of tube 14, the same being defined within an annular Wall 18, a lower end annular walll 19 between wall 18 and tube 14, and an upper end annular Wall 20 spaced above the closure wall 15.
  • a tubular stack21 rises from the chamber 17 in Avertical alignment with tube 14, said stack being carried by the annular wall 20.5
  • Said stackfis preferably of such height as to induce draft such as will cause discharge of air through the upperend thereof.
  • the lmeans 8 is shown as a water inlet pipe 22, at each end, terminating in a preferably capped horizontal pipe 23'that extends across the upper portion of enclosure 6, as best seen in Fig. 2. On the inwardly directed side, each pipe 23 is provided with perforations24. It will be clear that Water under pressure'in said pipe 23 will be ⁇ directedA in the form of a spray 25 into the interior of ⁇ the enclosure.
  • the means 9 is shown as a fan 26 driven by an electric motor 27 and disposed across the path of the spray 25. By providing the fan 26 withtoverlapping blades, the same insures an eliicient intermix of air drawn into the enclosure inthedirection of arrows 28 with the spray 25'.r
  • the arrangement is such as to insure an efficient admixtureof water and air whereby the resultant mist or vapor comprises extremely small particles. Those particles that contain'contaminants may be larger and heavier than the topr11 thereofand are drawn away with the flow 12.
  • the enclosure 6 has a half- '70 round cross-sectional form which, While preferred, may
  • closure 15 and the annulus 2.0 serve as interceptors that increase the air-freeing effects obtained and, therefore, the eliiciency of return to the enclosure 6 of anycontaminant particles of mist. Such returning particles may again become subject to action of the mist produced by the means 8 and 9 but the end result is the deposit of all contaminants into the storm drain and release from the stacks of only pure air.
  • Air de-contaminating apparatus comprising a hori- ⁇ zontal, elongated and open-ended enclosure, means at each end of the enclosure toV draw contaminant-containing atmospheric air into the enclosure, means to incorporate said air and its contaminants into sprays of WaterY directed inwardly toward the middle of the enclosure, said air-borne sprays commingling turbulently in the enclosure and causing some of the heavier particles of spray to fall out'of the turbulent ow, riser means carried by the enclosure, one on each side ofthe area of turbulence, and means in the riser means to separate the air and the contaminants therein from each other, and which riser means rise from the enclosure, said riser means including stacks to draw the air upwardly and outward.
  • Apparatus according to claim 4 in which means is provided inwardly of each source of water spray to elect the mentioned incorporation of water spray and air, said means having moving blades to break the spray into a line mist.
  • Air cleaning apparatus comprising a generally horizontal enclosure having an open air inlet at each end and a central area of turbulence, two longitudinally spaced vertical, perforated, end-closed pipes extending upwardly from the enclosure one on each side of said area of turbulence, means within the enclosure at each end thereof to draw atmospheric air into the enclosurev through its inlets, each means comprising a fan disposed adjacent the inlet end of the duct, and including a set of overlapping fan blades arranged to span the transverse area of the enclosure, means to introduce a spray of water into each air stream moving in the enclosure, said latter means each comprising a spray-releasing member dis posed across the enclosure and directing its spray against the inlet sides of the fan ⁇ blades, and a stack above the closed end of each perforated pipe to draw air from the perforated pipe and discharge the same into atmosphere, ⁇ moisture from the air stream discharging downwardly from the enclosure.
  • Air cleaning apparatus comprising in combination, an elongated enclosure having a lower outlet, means for directing air to be cleaned into the enclosure from each end thereof, and means to introduce sprays of water with said air, the air from both ends meeting turbulently at the central portion of the elongated enclosure and the turbulence tending to cause droppage of heavy particles from the air together with moisture, said enclosure having a pair of upwardly directed openings at each end of the central portion for withdrawing air and lighter entrained particles from saidenclosure, moisture-separating means connected to said upwardly directed openings and outlet stacks connected thereto for purified air.

Description

May 24, 1960 .1. H. wooDs AIR DE-CONTAMINATQR Filed Sept. 22, 1958 'United States Patent Am Dn-coNrAMlNA'roR e vJames H. Woods, 6 02 Griswold St., San Fernando, Calif.
.. Filed sept. zz, 195s, ser. No. 762,605
` 7 claims. (c1. 18s-2s).
This invention relates to apparatus for cleaning or decontaminating atmospheric air and is a continuation-1npart of my pending application Serial No. 718,525,A now..
abandoned, filed March 3, 1958.
An object of the present invention is to purify atmospheric air by producing an agitated mist of said air and water and gravitationally separating the Washed air from thecOntaminated Water that may be directed to sewage disposal. y
Another object of the invention is to draw the atmos phere through a spray of water and then to so .thoroughly agitate the same that foreign particles in the air become wetted and too heavy to rise in the atmosphere which, thereby, is cleansed. V f
f The invention also has for-its objectsto provide such means Vthat are positive in operation, convenient in use, easilyqinstalled in a working position and easily disconnected therefrom, economical of manufacture, relatively simple, and of general superiority and serviceability. v Y
'I'he invention also comprises novel details of constructionand novel combinations and arrangements offparts, whichWwill more fully appear in the course of the following description. "However, the drawing merelyshows and the'following description merely describes, oneernbodi-.yV givenV by way ofA mentL` of the, present invention, which is illustration or example only. l y l,
, In the drawing, like reference characters designate similar parts in the several views. Y
Fig. lis a longitudinal sectional view of air de-contaminating apparatus showing afpreferrediembodiment of the present invention.
:The airdecontaminatin'g' apparatus that is illustrated comprises,"generally', a' storm drain 5, an velongated en dopenihoriz'ontal enclosure 6, v`preferably above ground, and coveringlithefs'torm drain"5,' ai pair` of air andlgimpllrity ri'sers 7 spaced'longitudinally along the enclosure 6 and receptive from opposite ends of said enclosure of atmospheric air drawn into the enclosuremeans 8- to spray water across 'each 'end of the enclosure, land mans`9 to intermiX said water and air entering the enclosure and direct the same, in the form of a mist, toward the middle of the enclosure.
The storm sewer S is of conventional construction and may be positioned below the ground surface 10, as shown, or may comprise an open ditch. In either case, the storm sewer is provided with an opening 11 to the surface 10 to expose water flow 12 in the drain from above and serving as a subsurface outlet vent for the enclosure 6.
The enclosure 6 is shown as an elongated duct or passageway disposed on the ground surface and overstanding the drain opening 11. In practice, said enclosure is perferably longer than opening 11 and the ared ends 13 of the enclosure are, in part, defined by the ground sur- Acap 15;
Each riser 7 alsoaincludes a chamber 17v around the perforated portion of tube 14, the same being defined within an annular Wall 18, a lower end annular walll 19 between wall 18 and tube 14, and an upper end annular Wall 20 spaced above the closure wall 15. A tubular stack21 rises from the chamber 17 in Avertical alignment with tube 14, said stack being carried by the annular wall 20.5 Said stackfis preferably of such height as to induce draft such as will cause discharge of air through the upperend thereof. Y
The lmeans 8 is shown as a water inlet pipe 22, at each end, terminating in a preferably capped horizontal pipe 23'that extends across the upper portion of enclosure 6, as best seen in Fig. 2. On the inwardly directed side, each pipe 23 is provided with perforations24. It will be clear that Water under pressure'in said pipe 23 will be` directedA in the form of a spray 25 into the interior of` the enclosure.
. p IThe means 9 is shown as a fan 26 driven by an electric motor 27 and disposed across the path of the spray 25. By providing the fan 26 withtoverlapping blades, the same insures an eliicient intermix of air drawn into the enclosure inthedirection of arrows 28 with the spray 25'.r
reason of high rotation'of the fan, the spray directed against its blades is broken up into a fine mist which j oins the airstream and effects the mentioned intermix ofair and water.
".The arrangement is such as to insure an efficient admixtureof water and air whereby the resultant mist or vapor comprises extremely small particles. Those particles that contain'contaminants may be larger and heavier than the topr11 thereofand are drawn away with the flow 12.
face 10. It will be noted `that the enclosure 6 has a half- '70 round cross-sectional form which, While preferred, may
' The finer, lighter'particlesr, from opposite ends of the enclosure 6, will commingle'at 30 in the middle area between the risers 7. Since this turbulent flow of mist is subject to the cooling effect of the flow,12, which takesl effect through the drain opening 11, .an eticient fall-out of contaminants'in this turbulence occurs, the samejoining the w 1 2, as before. V Thus, th'e enclosure betweenVV v L its endsf'llanduthe middle thereof has residual ows of g mist'that are'jlightenough to rise in the risers 7 since they 'fI'he'misuiparticles willbeintercepted by closure l5-' and be directed laterally through perforations 16. Such collection of the vapors that occurs by'this lateral movement will precipitate in chamber 17 and eventuallyy will drain back through tube 14 into the enclosure 6 from which the same will fall into the iiow 12 ofthe storm drain. The lighter, drier air particles that become separated in chamber 17 from the wetted, liquid-bearing particles are drawn upwardly in stack 21 and exit from the .stack as clean air.
It will be realized that the closure 15 and the annulus 2.0 serve as interceptors that increase the air-freeing effects obtained and, therefore, the eliiciency of return to the enclosure 6 of anycontaminant particles of mist. Such returning particles may again become subject to action of the mist produced by the means 8 and 9 but the end result is the deposit of all contaminants into the storm drain and release from the stacks of only pure air.
-The capacity to move and clean air by the apparatus Patented. May 24, 1960,.v
will depend largely on its size and the same may, of course, be designed to move and clarify millions of cubic feet of atmospheric air per hour of operation.
While the foregoing specification illustrates and d escribes what I now contemplate to be the best mode of carrying out my invention, the construction is, of course, subject to modification without departing from the spirit and scope Aof my invention. Therefore, I do not desire to restrict the invention to the particular form of construction illustrated and described, but desire to cover all modications that may fall within the scope of the appended claims.
Having thus described my invention, what is claimed and desired to be secured by Letters Patent is:
1. The combination of an elongated open-ended enclosure having an elongated subsurface vent that is open above a ow of water therepast, means at each said open end to draw contaminant-containing atmospheric air into the enclosure, means to embody said air llow into sprays of water directed inwardly toward the middle of the en-` closure, said airborne sprays commingling turbulently above said vent and subject to cooling by the flow of water below said open vent to cause precipitation of the large spray-wetted contaminants in the air ow into the vent, riser means carried by the enclosure, one on each side of the area of turbulence, and means in the riser means to separate the air and the contaminants therein from each other, and which riser means rise from the enclosure, said riser means including stacks to draw the 'air upwardly and outward.
2. The combination according to claim 1 in which the riser means includes passages to conduct released contaminants back into the enclosure.
3. The combination of an elongated open-ended enclosure having an elongated subsurface vent that is open above a ow of water therepast, means at each said open end to draw contaminant-containing atmospheric air into the enclosure, means to embody said air flow into sprays of water directed inwardly toward the middle of the enclosure, said air-borne sprays commingling turbulently above said vent and subjectl to cooling by the ow of water to cause precipitation of the large spray-wetted contaminants in the air flow into the vent, a riser between the middle and each end of the enclosure, eachriser comprising a vertical perforated and end-closed tube extending upwardly from and receiving flow of spray-wetted air from the enclosure, a chamber around each tube and receptive of lateral flow through the perforations of the respective tubes, and` a stack-extending upwardly from each chamber and producing a draft to draw up and out the drier particles of air circulating in said chambers.
4. Air de-contaminating apparatus comprising a hori-` zontal, elongated and open-ended enclosure, means at each end of the enclosure toV draw contaminant-containing atmospheric air into the enclosure, means to incorporate said air and its contaminants into sprays of WaterY directed inwardly toward the middle of the enclosure, said air-borne sprays commingling turbulently in the enclosure and causing some of the heavier particles of spray to fall out'of the turbulent ow, riser means carried by the enclosure, one on each side ofthe area of turbulence, and means in the riser means to separate the air and the contaminants therein from each other, and which riser means rise from the enclosure, said riser means including stacks to draw the air upwardly and outward.
5. Apparatus according to claim 4 in which means is provided inwardly of each source of water spray to elect the mentioned incorporation of water spray and air, said means having moving blades to break the spray into a line mist.
6. Air cleaning apparatus comprising a generally horizontal enclosure having an open air inlet at each end and a central area of turbulence, two longitudinally spaced vertical, perforated, end-closed pipes extending upwardly from the enclosure one on each side of said area of turbulence, means within the enclosure at each end thereof to draw atmospheric air into the enclosurev through its inlets, each means comprising a fan disposed adjacent the inlet end of the duct, and including a set of overlapping fan blades arranged to span the transverse area of the enclosure, means to introduce a spray of water into each air stream moving in the enclosure, said latter means each comprising a spray-releasing member dis posed across the enclosure and directing its spray against the inlet sides of the fan` blades, and a stack above the closed end of each perforated pipe to draw air from the perforated pipe and discharge the same into atmosphere,` moisture from the air stream discharging downwardly from the enclosure. v
7. Air cleaning apparatus comprising in combination, an elongated enclosure having a lower outlet, means for directing air to be cleaned into the enclosure from each end thereof, and means to introduce sprays of water with said air, the air from both ends meeting turbulently at the central portion of the elongated enclosure and the turbulence tending to cause droppage of heavy particles from the air together with moisture, said enclosure having a pair of upwardly directed openings at each end of the central portion for withdrawing air and lighter entrained particles from saidenclosure, moisture-separating means connected to said upwardly directed openings and outlet stacks connected thereto for purified air.
References'Cited in the tile of this patent UNITED STATES PATENTS Germany oct. 17, 1889
US762605A 1958-09-22 1958-09-22 Air de-contaminator Expired - Lifetime US2937712A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393497A (en) * 1965-05-05 1968-07-23 Frank M. Donnelly Gas exhaust and cleaning system
US3406498A (en) * 1965-05-17 1968-10-22 Cen Trific Air Products Inc Air treating apparatus
US3434267A (en) * 1964-09-03 1969-03-25 Messen Jaschin G A Apparatus for purifying air
US3538685A (en) * 1969-07-28 1970-11-10 Jack Bremen Exhaust gas washing apparatus
US5620633A (en) * 1995-08-17 1997-04-15 Circulair, Inc. Spray misting device for use with a portable-sized fan

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE49115C (en) * J. fleischer in Frankfurt a. M., Sandweg 82 II Steam dryer
US434119A (en) * 1890-08-12 Exhaust-head for steam-pipes
US960686A (en) * 1908-09-12 1910-06-07 David J T Oldham Dust-collector.
US1796405A (en) * 1929-03-02 1931-03-17 Carl J Schobrone Air purifier
US2256507A (en) * 1939-07-28 1941-09-23 Charles G Weber Apparatus for conditioning paper
US2547190A (en) * 1946-01-23 1951-04-03 Maloney Crawford Tank And Mfg Oil and gas separator
US2608398A (en) * 1948-10-18 1952-08-26 Sr Tracy S Park Cooling tower
US2732192A (en) * 1956-01-24 Section

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE49115C (en) * J. fleischer in Frankfurt a. M., Sandweg 82 II Steam dryer
US434119A (en) * 1890-08-12 Exhaust-head for steam-pipes
US2732192A (en) * 1956-01-24 Section
US960686A (en) * 1908-09-12 1910-06-07 David J T Oldham Dust-collector.
US1796405A (en) * 1929-03-02 1931-03-17 Carl J Schobrone Air purifier
US2256507A (en) * 1939-07-28 1941-09-23 Charles G Weber Apparatus for conditioning paper
US2547190A (en) * 1946-01-23 1951-04-03 Maloney Crawford Tank And Mfg Oil and gas separator
US2608398A (en) * 1948-10-18 1952-08-26 Sr Tracy S Park Cooling tower

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434267A (en) * 1964-09-03 1969-03-25 Messen Jaschin G A Apparatus for purifying air
US3393497A (en) * 1965-05-05 1968-07-23 Frank M. Donnelly Gas exhaust and cleaning system
US3406498A (en) * 1965-05-17 1968-10-22 Cen Trific Air Products Inc Air treating apparatus
US3538685A (en) * 1969-07-28 1970-11-10 Jack Bremen Exhaust gas washing apparatus
US5620633A (en) * 1995-08-17 1997-04-15 Circulair, Inc. Spray misting device for use with a portable-sized fan

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