US2370629A - Dust precipitator - Google Patents
Dust precipitator Download PDFInfo
- Publication number
- US2370629A US2370629A US489360A US48936043A US2370629A US 2370629 A US2370629 A US 2370629A US 489360 A US489360 A US 489360A US 48936043 A US48936043 A US 48936043A US 2370629 A US2370629 A US 2370629A
- Authority
- US
- United States
- Prior art keywords
- tube
- chamber
- vanes
- air
- dust precipitator
- 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.)
- Expired - Lifetime
Links
- 239000000428 dust Substances 0.000 title description 6
- 239000012716 precipitator Substances 0.000 title description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
- B04C2003/006—Construction of elements by which the vortex flow is generated or degenerated
Definitions
- the present invention pertains to a novel dust precipitator adaptable for the general purpose ,of removing dust or other particles from a gas
- One of the specific applications such as air. of the device is its use as an air cleaner in connection with the interior of a combat tank.
- Another illustrative use is the cleaning of air for the carburetor of an internal combustion englue.
- the apparatus is designed with a main flow chamber of gradually decreasing cross-sectional area, thereby accelerating-the stream and de creasing the turbulence.
- This chamber has restricted communication through its outer wall with an outer or precipitating chamber.
- the stream. is whirled in the inner chamber and as a result the heavier laden portion is discharged centrifugally into the outer chamber where the This chamber is provided with a discharge duct at or near its rear end.
- the cleaner portio continues through the inner chamber which is provided at its discharge endwith an oppositely directed whirling device for imparting a linear direction to the stream. At the same time the rotational energy of the whirling stream is converted into pressure energy in a linear direction.
- Figure 1 is a side elevation of the device, partly in section
- Figure 2 is an end view
- Figures 3 and 4 are sections on the lines 3-3 and 4-4 respectively of Figure 1;
- Figure 5 is a partial side elevation of a modification
- Figure 6 is a section on the line 6-6 of Figure 5.
- the device may be regarded as built around a central core I which may be in the form of a tube closed at 2 at the intake end of the device. Around this end is fixed a set of spiral vanes 3 constituting a whirler. These vanes also serve to support one end of a tube 4 enclosing the vanes and core I in concentric relation with the latter.
- protruding end of the core carries another set of vanes 6 similar to vanes 3 but oppositely directed, for a purpose that will presently be described.
- the vanes 6 support an exhaust tube 1 which is coaxial with the tube 4 and tapers as at 8 towards the adjacent end of the tube t.
- the smaller end 9 of the tapered portion 8 is smaller than the adjacent end of the tube 3 and is spaced longitudinally therefrom, as shown in Figure 1,
- the tubes 4 and l are enclosed in an outer tube or shell l0 supported and spaced from the first named tube by suitable end closure rings
- the straps also supv port the smaller end of the tube 4.
- the annular chamber l3 around the core I diminishes in i and increases in width roughly in proportion to the increasing area of the chamber H3, in
- the dust outlet consists of a tangential tube It communicating with the annular space it around the discharge tube 1 at a point adjacent to the tapered portion 8 and in advance of the rear vanes 6.
- the air is forced between the vanes .3 into the annular space l3 and has imparted to it a whirling motion in passing between the vanes.
- the dust particles are thrown outwardly by centrifugal force and the air that becomes more concentrated with particles in this manner escapes through the slot l5.
- the decreasing crosssectional area of the chamber l3 accelerates the velocity of the rrent and thereby reduces the turbulence.
- e concentrated air passes from the space I4 to the space H around the tube i, from which it is discharged through the duct
- the cleaner air continues along the chamber i3 and the major portion passes therefrom into the tube 1.
- the latter fraction is obviously discharged through the outlet IS.
- the clean air is discharged between the vanes 6 which, being directed oppositely through the vanes 3, restore the whirling current to a straight path.
- the rotational energy of the whirling current is regained as pressure energy in the discharged stream.
- a dust precipitator comprising a core, a tube spaced around the same and tapering from one end to the other to form with such core a chamber of gradually decreasing cross-sectional area, a shell enclosing said tube and forming therewith a chamber, the larger end of said tube being the intake, a whirling device in said end, said tube having a slot extending substantially from end to end, and increasing in width from the inlet end of said tube, the second chamber gradually increasing in cross-sectional area.
Description
. major precipitation occurs.
Patented Mar. 6, 1945,
UNITED STATES PATENT OFFICE nosr PRECIPITATOR William R. Appeldoorn, Detroit, Mich. Application June 2, 1943, Serial No. 489,360
(Granted under the-act of March 3; 1883, as amended April 30, 1928; 370 0. G. 757) 1 Claim.
The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.
The present invention pertains to a novel dust precipitator adaptable for the general purpose ,of removing dust or other particles from a gas One of the specific applications such as air. of the device is its use as an air cleaner in connection with the interior of a combat tank. Another illustrative use is the cleaning of air for the carburetor of an internal combustion englue.
The apparatus is designed with a main flow chamber of gradually decreasing cross-sectional area, thereby accelerating-the stream and de creasing the turbulence. This chamber has restricted communication through its outer wall with an outer or precipitating chamber. The stream. is whirled in the inner chamber and as a result the heavier laden portion is discharged centrifugally into the outer chamber where the This chamber is provided with a discharge duct at or near its rear end.
The cleaner portio continues through the inner chamber which is provided at its discharge endwith an oppositely directed whirling device for imparting a linear direction to the stream. At the same time the rotational energy of the whirling stream is converted into pressure energy in a linear direction.
The invention is fully disclosed by the way of example in the following description and in the accompanying drawing in which:
Figure 1 is a side elevation of the device, partly in section;
Figure 2 is an end view;
Figures 3 and 4 are sections on the lines 3-3 and 4-4 respectively of Figure 1;
Figure 5 is a partial side elevation of a modification, and
Figure 6 is a section on the line 6-6 of Figure 5.
Reference to these views will now be made by use of like characters which are employed to designate corresponding parts throughout.
The device may be regarded as built around a central core I which may be in the form of a tube closed at 2 at the intake end of the device. Around this end is fixed a set of spiral vanes 3 constituting a whirler. These vanes also serve to support one end of a tube 4 enclosing the vanes and core I in concentric relation with the latter. The tube 4, as shown in Figure 1, tapers H and spiral straps l2.
slightly from the vanes to the other end, where it terminates considerably short of the core. The
protruding end of the core carries another set of vanes 6 similar to vanes 3 but oppositely directed, for a purpose that will presently be described. The vanes 6 support an exhaust tube 1 which is coaxial with the tube 4 and tapers as at 8 towards the adjacent end of the tube t.
The smaller end 9 of the tapered portion 8 is smaller than the adjacent end of the tube 3 and is spaced longitudinally therefrom, as shown in Figure 1,
The tubes 4 and l are enclosed in an outer tube or shell l0 supported and spaced from the first named tube by suitable end closure rings The straps also supv port the smaller end of the tube 4.
As shown in the sectional views, the annular chamber l3 around the core I diminishes in i and increases in width roughly in proportion to the increasing area of the chamber H3, in
order to supply the chamber at an increasing rate. Although, shown as occupying a longitudinal position, the slot may be formed spirally if desired. The dust outlet consists of a tangential tube It communicating with the annular space it around the discharge tube 1 at a point adjacent to the tapered portion 8 and in advance of the rear vanes 6.
In the operation of the device the air is forced between the vanes .3 into the annular space l3 and has imparted to it a whirling motion in passing between the vanes. The dust particles are thrown outwardly by centrifugal force and the air that becomes more concentrated with particles in this manner escapes through the slot l5. At the same time, the decreasing crosssectional area of the chamber l3 accelerates the velocity of the rrent and thereby reduces the turbulence. e concentrated air passes from the space I4 to the space H around the tube i, from which it is discharged through the duct The cleaner air continues along the chamber i3 and the major portion passes therefrom into the tube 1. A comparatively small portion, constituting the more concentrated fraction, readily escapes into the annular chamber II by reason of the difierence in radius between the end 9 of tube and the rear or smaller end of tube 4 and the longitudinal spacing therebetween, as previously set forth. The latter fraction is obviously discharged through the outlet IS. The clean air is discharged between the vanes 6 which, being directed oppositely through the vanes 3, restore the whirling current to a straight path. At the same time, the rotational energy of the whirling current is regained as pressure energy in the discharged stream.
In the modification shown in Figures 5 and 6, the rear end of the channel M is closed by a ring 20, and another outlet duct 2lis placed tangentially in communication with the chamber It immediately in front of the ring 20. Thus, the entire contents of this chamber is discharged before entering the tube '8. Otherwise, the operation is as previously described. Some of the air from chamber l3 passes to space H and any precipitant therefrom is discharged through the duct I6. This device is used in special cases where it is desired to exhaust the more concentrated fraction, or the major portion of solids, before it may become diluted in the adjoining chamber IT.
Although specific embodiments of the invention have been illustrated and described, it will be understood that various alterations in the details on construction may be made without departing from the scope of the invention as indicated by the appended claim.
What I claim is:
A dust precipitator comprising a core, a tube spaced around the same and tapering from one end to the other to form with such core a chamber of gradually decreasing cross-sectional area, a shell enclosing said tube and forming therewith a chamber, the larger end of said tube being the intake, a whirling device in said end, said tube having a slot extending substantially from end to end, and increasing in width from the inlet end of said tube, the second chamber gradually increasing in cross-sectional area.
WILLIAM R. APPELDOORN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US489360A US2370629A (en) | 1943-06-02 | 1943-06-02 | Dust precipitator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US489360A US2370629A (en) | 1943-06-02 | 1943-06-02 | Dust precipitator |
Publications (1)
Publication Number | Publication Date |
---|---|
US2370629A true US2370629A (en) | 1945-03-06 |
Family
ID=23943532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US489360A Expired - Lifetime US2370629A (en) | 1943-06-02 | 1943-06-02 | Dust precipitator |
Country Status (1)
Country | Link |
---|---|
US (1) | US2370629A (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2462797A (en) * | 1946-07-20 | 1949-02-22 | Westinghouse Electric Corp | Gas-cleaning means |
US2480243A (en) * | 1947-04-10 | 1949-08-30 | American Blower Corp | Expandible spinner |
US2506298A (en) * | 1947-08-09 | 1950-05-02 | American Blower Corp | Fluid stream directing means |
US2569710A (en) * | 1948-05-29 | 1951-10-02 | Stephen L Fitzpatrick | Fly ash precipitator |
US2569909A (en) * | 1948-01-26 | 1951-10-02 | Power Jets Res & Dev Ltd | Nonrotary centrifugal separator |
US2616519A (en) * | 1949-01-28 | 1952-11-04 | Gen Electric | Inertia type air cleaning device |
US2647588A (en) * | 1950-01-16 | 1953-08-04 | Bituminous Coal Research | Boiler tube fly ash collector |
US2650675A (en) * | 1950-03-09 | 1953-09-01 | Bituminous Coal Research | Method and apparatus for the separation of particulate material from entraining gaseos fluids |
US2689466A (en) * | 1951-06-30 | 1954-09-21 | Servel Inc | Absorption refrigeration unit with a centrifugal separator |
US2712859A (en) * | 1952-04-30 | 1955-07-12 | Research Corp | Centrifugal gas cleaning device |
US2732032A (en) * | 1956-01-24 | sandison | ||
US2806551A (en) * | 1951-10-16 | 1957-09-17 | Oswald X Heinrich | Centrifugal dust collector with laminar gas flow |
US2981369A (en) * | 1951-11-23 | 1961-04-25 | Bituminous Coal Research | Vortical whirl separator |
DE1190306B (en) * | 1954-04-01 | 1965-04-01 | Ofu Ofenbau Union G M B H | Shaft-like separation chamber for separating dust from flowing gases |
US3421299A (en) * | 1968-01-22 | 1969-01-14 | Us Air Force | Partial reverse flow separator |
US3670479A (en) * | 1970-12-14 | 1972-06-20 | Gen Electric | Momentum slot centrifugal type separator |
US3707830A (en) * | 1971-05-18 | 1973-01-02 | Bahco Ventilation Ab | Cyclone separator |
FR2585266A1 (en) * | 1985-07-26 | 1987-01-30 | Air Ind Environnement | AXIAL FLOW CYCLONE SEPARATION APPARATUS |
NL1019561C2 (en) * | 2001-12-13 | 2003-06-17 | Frederic Pierre Joseph Koene | Cyclone separator as well as a liquid collection cabinet provided with such cyclone separators and a pressure vessel provided with such liquid collection boxes. |
-
1943
- 1943-06-02 US US489360A patent/US2370629A/en not_active Expired - Lifetime
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2732032A (en) * | 1956-01-24 | sandison | ||
US2462797A (en) * | 1946-07-20 | 1949-02-22 | Westinghouse Electric Corp | Gas-cleaning means |
US2480243A (en) * | 1947-04-10 | 1949-08-30 | American Blower Corp | Expandible spinner |
US2506298A (en) * | 1947-08-09 | 1950-05-02 | American Blower Corp | Fluid stream directing means |
US2569909A (en) * | 1948-01-26 | 1951-10-02 | Power Jets Res & Dev Ltd | Nonrotary centrifugal separator |
US2569710A (en) * | 1948-05-29 | 1951-10-02 | Stephen L Fitzpatrick | Fly ash precipitator |
US2616519A (en) * | 1949-01-28 | 1952-11-04 | Gen Electric | Inertia type air cleaning device |
US2647588A (en) * | 1950-01-16 | 1953-08-04 | Bituminous Coal Research | Boiler tube fly ash collector |
US2650675A (en) * | 1950-03-09 | 1953-09-01 | Bituminous Coal Research | Method and apparatus for the separation of particulate material from entraining gaseos fluids |
US2689466A (en) * | 1951-06-30 | 1954-09-21 | Servel Inc | Absorption refrigeration unit with a centrifugal separator |
US2806551A (en) * | 1951-10-16 | 1957-09-17 | Oswald X Heinrich | Centrifugal dust collector with laminar gas flow |
US2981369A (en) * | 1951-11-23 | 1961-04-25 | Bituminous Coal Research | Vortical whirl separator |
US2712859A (en) * | 1952-04-30 | 1955-07-12 | Research Corp | Centrifugal gas cleaning device |
DE1190306B (en) * | 1954-04-01 | 1965-04-01 | Ofu Ofenbau Union G M B H | Shaft-like separation chamber for separating dust from flowing gases |
US3421299A (en) * | 1968-01-22 | 1969-01-14 | Us Air Force | Partial reverse flow separator |
US3670479A (en) * | 1970-12-14 | 1972-06-20 | Gen Electric | Momentum slot centrifugal type separator |
US3707830A (en) * | 1971-05-18 | 1973-01-02 | Bahco Ventilation Ab | Cyclone separator |
EP0210910A2 (en) * | 1985-07-26 | 1987-02-04 | Air Industrie Environnement | Cyclone separator with axial flow |
FR2585266A1 (en) * | 1985-07-26 | 1987-01-30 | Air Ind Environnement | AXIAL FLOW CYCLONE SEPARATION APPARATUS |
EP0210910A3 (en) * | 1985-07-26 | 1988-04-13 | Air Industrie Environnement | Cyclone separator with axial flow |
NL1019561C2 (en) * | 2001-12-13 | 2003-06-17 | Frederic Pierre Joseph Koene | Cyclone separator as well as a liquid collection cabinet provided with such cyclone separators and a pressure vessel provided with such liquid collection boxes. |
WO2003053590A1 (en) * | 2001-12-13 | 2003-07-03 | Koene Frederic Pierre Joseph | Cyclone separator, liquid collecting box and pressure vessel |
US20050150200A1 (en) * | 2001-12-13 | 2005-07-14 | Koene Frederic Pierre J. | Cyclone separator liquid collecting box and pressure vessel |
AU2002354406B2 (en) * | 2001-12-13 | 2008-02-28 | Kch Separation | Cyclone separator, liquid collecting box and pressure vessel |
US7381235B2 (en) | 2001-12-13 | 2008-06-03 | Frederic Pierre Joseph Koene | Cyclone separator, liquid collecting box and pressure vessel |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2370629A (en) | Dust precipitator | |
US4311494A (en) | Axial flow gas cleaning device | |
US3725271A (en) | Apparatus and method for separating particles from a flow of fluid | |
US4141705A (en) | Vortex separator | |
US4390426A (en) | Centrifugal separators of the cyclone type | |
US4008059A (en) | Centrifugal separator | |
US3064411A (en) | Separator | |
US2506298A (en) | Fluid stream directing means | |
SE316150B (en) | ||
US3611679A (en) | Air cleaner | |
GB1465915A (en) | Vortex air cleaner array | |
GB1504440A (en) | Engine air precleaner | |
US2569909A (en) | Nonrotary centrifugal separator | |
GB1070458A (en) | Separator for removing foreign matter from a gas stream | |
US3577711A (en) | Apparatus for removing entrained particles from gases | |
US2847087A (en) | Dust collectors | |
US2375203A (en) | Dust separator | |
US2538195A (en) | Fluid separator | |
JPH02115055A (en) | Apparatus for separating solid particles from mixture of fluid and solid particles | |
FR2274363A1 (en) | Separator to remove particles from gases - has hollow tube section with conical deflector in the centre | |
US3030755A (en) | Self-cleaning filter | |
US3019856A (en) | Dust collector | |
US2229913A (en) | Silencer | |
US1734030A (en) | Air cleaner | |
JP6252774B2 (en) | Intake device |