US2805651A

US2805651A - Device to control smoke

Info

Publication number: US2805651A
Application number: US315085A
Authority: US
Inventors: Rudolph O Weihl
Original assignee: Individual
Current assignee: Individual
Priority date: 1952-10-16
Filing date: 1952-10-16
Publication date: 1957-09-10
Anticipated expiration: 1974-09-10

Description

Tif

- I Sept. 10,

R. o. WEIHL DEVICE TO CONTROL SMOKE Filed Oct. 16, 1952 EJL INVENTOR. RUDOLPH 0. WEJbZ DEVICE T CONTROL SMOKE Rudolph O. Weihl, Bronx, N. Y.

Application @ctoher 16, 1952, Serial No. 315,tl85

9 Ciaims. (Cl. 122-=-379) -his invention relates to devices for controlling and eliminating smoke.

It is an object of the present invention to provide a device for controlling and eliminating smoke which ineludes means for introducing steam under high pressure into the smoke stream, the steam precipitating the soot and other coloring matter resulting from incomplete combustion of the fuel and leaving the clear gases to escape into a sewer, chimney and the like.

It is another object of the present invention to provide a device of the above type which includes means for in-' timately mixing the steam with the smoke stream and means for imparting a rapid movement of the resulting mixture through a smoke box to a sewer or the like.

It is still another object of the present invention to provide a device of the above type which includes automatic means for regulating the exit of the mixed smoke and steamto a sewer or the like.

it is still another object of the present invention to provide a device of the above type in which the aforesaid mixing, moving and regulating means are driven by common source.

Other objects of the present invention are to provide a device for controlling and eliminating smoke bearing the above objects in mind which is of simple construction, has a minimum number of parts, is compact, easy to install and efiicient in operation.

For other objects and for a better understanding of the invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, in which: 7

Figure 1 is a side elevational view of a device to control and eliminate smoke embodying the features of the present invention and shown in operative use with a steam furnace and utilizing a rotating steam coil;

Fig. 2 is a side elevational view of the device shown in Fig. 1 but shown partly in section to show the interior construction thereof;

Fig. 3 is an enlarged, fragmentary side elevational view of the steam coil injector shown partly in section to show the construction thereof;

Fig. 4 is a vertical sectional view of the steam coil inlet fitting and bearing support taken along line 4-4 of Fig. 2;

Fig. 5 is a vertical sectional view of said fitting and support taken along line 5-5 of Fig. 4;

Fig. 6 is a side elevational view of a modified form of the present invention where the steam coil is stationary shown partly in section to show the interior construction thereof; and

Fig. 7 is a side elevational view of a still further modified form of the present invention where a stationary steam coil is used along with a different smoke moving means, shown partly in section to show the, interior construction thereof.

Referring more in detail to the drawing, in which simi: lar reference characters designate'corresponding parts throughout the several views, there is shown in Figure 1 a steam furnace it) having the usual smoke flue 11 and steam outlet 12.

There is also shown a smoke controlling and eliminating device, referred to collectively as 13, positioned along side the furnace 1t) and connected to the flue 11 by means of a vertically-extending flue 14 and an elbow 15, substantially as illustrated.

The device 13 includes an elongated smokebox 16 formed with an enlargement 17 at one end and extending downwardly toward concrete floor '71 at its other end, substantially as shown.

The enlargement 17 is closed at its outer end by a wall 18, while the other end of smoke box 16 is open and rests upon plate 19, the plate 19 having an opening 20 communicating with the open end of the smoke box and with a sewer conduit 21 leading to the sewer, not shown.

An electric motor 22 is mounted upon a base plate 23 intermediate the furnace it? and smoke box 16 and includes the usual drive shaft 24 extending toward the wall.

18. A pulley. 25 is fixedly carried by the end of drive shaft 24.

A hearing support 26 is mounted upon a base plate 27 intermediate the end of drive shaft 24 and wall 18, the wall 18 having an opening aligned with the opening of bearing support 26.

A shaft 28 is rotatably mounted inbearing support 26,

extending to smoke box 16 through the opening in wall.

18 while the other end of shaft 28 rests above the end of drive shaft 24. A pulley 29 is fixedly carried by the outer end of shaft 28 in vertical alignment with motor pulley 25, and a friction belt 34 connects the two pulleys.

A second bearing support Si is mounted within the enlargement 17 of the smoke box 16 and rotatably receives the inner end of shaft 28, as shown in Fig. 2, the shaft 28 continuing inwardly through the bearing support 35. to terminate near the inlet to the smoke box proper in a helically-threaded end 32. A blower propeller 33 is fixedly mounted uponshaft 28 intermediate the bearing support 31 and the end 32 and serves, when rotating, to draw smoke into the smoke box 16 from flue 14 through an opening 34 provided in the top of enlargement 17 and communicating with flue 14.

A transverse shaft 38 is rotatably mounted in one side of smoke box 16, extending inwardly to terminate at the central longitudinal axis of the smoke box. A bevel gear 39 is fixedly carried by the inner end of shaft 38 while the other end of shaft 38 fixedly carries a pulley 40 conneeted to pulley 37 by a friction belt 41.

A bearing member 42 is mounted on the bottom of the smoke box 16 alongside the gear 38, the bearing opening thereof being disposed along the central longitudinal axis of the smoke box. A hollow shaft 43 is rotatably positioned within bearing member 42, Figs. 4 and 5, extending outwardly therefrom at one end to terminate near the bevel gear 39. A seecond bevel gear 44 is fixedly carried by this end of shaft 43 and meshes with bevel gear 39.

The top of bearing member 42 is provided with a vertical opening 45 communicating with the hollow interior of shaft 43 by means of a plurality of radial openings 46 provided in shaft 43 below opening 45.

A high pressure steam pipe 47 connects with openings 45 through an opening 48 in the top of the smoke box 16, the pipe 47 being threaded into the top of bearing member 42, substantially as illustrated in Figs. 4 and 5.

The pipe 47 is suitably connected to the steam out- 49 regulating the flow of steam therethrough, as shown Patented Sept. 10, 1957.

3 in Fig. 1. The steam can also be obtained from a separate' source.

Referring to Fig. 2, it will be seen that; a rotatable helical steam pipe 50. is suitably connected to the other end of shaft 43, communicating with the hollow interior of the latter. The pipe 50 extends substantially the length of the smoke box proper and terminates in a closed end 51 fixedly connected to an enlargement 52 of ,a rotatable shaft 53 journalled in the downwardly extending end wall of smoke box 16. Thepipe 50 is provided with a plurality of spaced openings 54 extending substantially the length thereof, whereby to spray compressed steam from pipe 47 along the interior of the smoke box.

The other end of shaft .53is rotatably mounted in a bearing member 55 of a centrifugalgovernor' 56, the governor 56'including a downwardly-extending arm 57 adapted to move inthe direction of the arrow of Fig. 2 upon rotation of shaft 53 and operationof governor 56. The lower end of arm 57 isprovided with a slot 58 and extendsinto' the smoke box 16 through an opening 59, substantially as illustrated in Fig. 2, and for a purpose to be described directly.

A circular damper 60 is provided pivotally mounted and smoke tight upon a shaft 61 journalled in the sides of smoke box 16 directlyabove the opening 20 and is adapted to normally rest upon plate 19 whereby to close the outlet of the smoke box, as shown in Fig. 2. An upwardlyextending arm 62 is rigidly secured to damper 60 and fixedly carries a pin 63 adapted to ride the slot 58. It will be noted that upon movement of the arm 57 in the direction of the arrow shown in Fig. 2, the pin 63 and arm 62 will be rotated outwardly whereby to open the damper 60.

A suitable covering 64 is provided for the governor 56, one end of which is secured to the smoke box 16 as at 65, while the other end is mounted upon a bracket 66 secured to the top of bearing member 55.

In operation, with the motor 22 turned on and steam valve 49 open, the drive shaft 24 of motor 22 rotates shaft 28 by means of pulleys and 29 and friction belt 30. The rotation of shaft 28 causes blower propeller 33 fixedly carried thereon to revolve, thus drawing smoke from

lines

11 and 14 into the smoke box through opening 34 and blowing it toward damper 60. Simultaneously, the rotation of shaft 28 and the helically-threaded end 32 thereof rotates reduction gear 36, thus turning shaft 35 fixedly carrying the gear 36, which motion rotates pulley 37 fixedly carried by the end of shaft 35. The rotation ofpulley 37 is transmitted to shaft 38 by means of pulley 40 and friction belt 41, thus rotating bevel gear 39. Rotation of bevel gear 39 is transmitted to hollow shaft 43 by means of bevel gear 44.

During this operation, high pressure steam is carried from outlet 12, through

pipes

72 and 47 and discharged into opening. 45. As hollow shaft 43 rotates, this steam passes into the hollow interior thereof through openings 46, whence it is carried along pipe 50 to be discharged therealong through outlets. 54 to mix with the smoke passing through the smoke box. Simultaneously, the rotation of shaft 43 rotates the helical pipe 50 fixedly secured thereto at one end, thereby etfecting a swirling motion of steam and smoke within the smoke box and bringing these two into more intimate contact with each other..

Rotation of pipe 50 causes shaft 53 to revolve, thus automatically putting the governor 56 into operation. Operation of governor 56 moves arm 57 in the direction of the arrow, thus. rotating pin 63 and arm 62 outwardly to open the damper 60, permitting the smoke and steam mixture to escape through opening 20 to a sewer, chimney or other disposal unit..

The steam precipitates the soot and other objectionable coloring matter in the smoke resulting from incomplete combustion of the fuel in furnace 10 and carries them to the sewer where they become a part of the drainage, while the clear gases escape into the atmosphere. This steam will also tend to cleanse the sewer.

It will be understood that while I have shown my device in operative use with a steam boiler furnace, it is equally applicable to all forms of combustion units where it is desired to eliminate smoke. It will also be understood that my device may be made into a unitary structure which may be inserted in chimneys and smoke stacks and as a unit without departing from the scope of the present invention.

I have found that the addition of lye to the steam line will more effectively. cut the smoke and produce the best results. This lye is particularly effective with smoke resulting from the combustion of oil and keeps the steam holes clear.

When the furnace 10 is shut down, the device is turned off by closing the valve 49 and turning off the motor 22. This causes the moving parts to become stationary, including the shaft 53. When shaft 53 stops rotating, the operation of the governor 56 automatically ceases and arm 57 returns to its original position, thus closing damper 60.

tionary, helical steam pipe 50' surrounds the screw 67 and extends substantially the length of the smoke box 16, the pipe 50 entering the smoke box through an opening 68 therethrough, and being suitably connected to the steam outlet 12 of furnace 10, as in the first form. The pipe 50 is provided with a plurality of openings 54 which eject high pressure steam into the interior of the smoke box.

In other respects, the form of the invention shown in Fig. 6 is the same as that illustrated in Figs. 1 through 5, and like reference numerals identify like parts in each of the several views.

In operation of the form shown in Fig. 6, with the motor 22 turned on and valve 49 open, the drive shaft 24 rotates shaft 28 causing blower propeller 33 fixedly carried thereon to revolve, thus drawing smoke from

fines

11 and 14 into the smoke box through opening 34 and blowing it toward damper 60. Simultaneously, the rotation of shaft 28 also causes helical screw 67 fixedly carried thereon to. revolve, thus intimately mixing steam escaping from openings 54 with smoke passing through the smoke box and also shooting or forcing the mixture towards damper 60. In other respects, the operation of this form is the same as the first form, with governor 56 being actuated upon rotation of shaft 28' to open the damper 60, and automatically closing the latter when shaft 28' comes to rest.

Referring now particularly to Fig. 7, there is shown a further modified form of the present invention, referred to collectively as 13", and differing from the second form in the removal of helical screw 67 from shaft 28' and in the provision of an exhaust blower propeller 69 located within a second enlargement 70 formed in the other end of smoke box 162 In other respects, the form of the invention shown in Fig. 7 is the same as that shown in Figs. 1 to 6 and like reference numerals identify like parts in each of the several views.

I The operation of this form is the same as that shown in Fig. 6, with the exception that the smoke passing through smoke box 16 is mixed with the steam escaping from openings 54 solely by the kinetic energy of the latter, the resulting mixture being further propelled toward damper 60 by the rotation of the exhaust propeller 69.

While various changes may "be made in the detail construction, it shall be understood that such changes will be within the spirit and scope of the present invention as defined by the appended claims.

What is claimed is:

1. A smoke control device comprising an elongated smoke box, an inlet at one end of said smoke box into which a smoke flue is adapted to discharge the smoke, blower means within said smoke box near said inlet, means for operating said blowermeans, an outlet at the other end of said smoke box, a damper adapted to close said outlet, governor means driven :by the means operating said blower means for opening said damper, a steam pipe disposed longitudinally within said smoke box and extending substantially the length thereof, said pipe having a plurality of openings therealong, an inlet at the end of said pipe nearest said blower means and means for feeding steam into said-pipe inlet.

2. A smoke control device comprising an elongated smoke box, an inlet at one end of said smoke box into which a smoke flue is adapted to discharge the smoke, blower means within said smoke box near said inlet, an outlet at the other end of said smoke box, a damper adapted to close said outlet, governor means driven by the means operating said blower for opening said damper, a substantially helical steam pipe rotatably mounted within said smoke box, said p'pe extending longitudinally substantially the length of said smoke box, said pipe having a plurality of openings therealong, an inlet at the end of said pipe adjacent said blower means, means for feeding steam into said pipe inlet, and common means driving said blower means, damper opening governor means and rotatable pipe.

3. A smoke control device comprising an elongated smoke box, an inlet at one end of said smoke box into which a smoke flue is adapted to discharge the smoke, blower means within said smoke box near said inlet, an outlet at the other end of said smoke box, a damper adapted to close said outlet, means for opening said damper, a substantially helical screw rotatably mounted within said smoke box and connected to the blower means to be driven thereby, said screw extending longitudinally substantially the length of said smoke box, a substantially helical steam pipe surrounding said screw and freely spaced therefrom, said pipe having a plurality of openings therealong, an inlet at the end of said .pipe nearest said blower means, means for feeding steam into said pipe inlet, and said damper opening means being cons nected to said helical screw to be operated by the same.

below said inlet, a bearing member within said smoke box near said inlet and propeller, a hollow shaft rotatably mounted within said bearing member, said hollow shaft being closed at its end adjacent said first shaft, means for connecting said first shaft to said hollow shaft to thereby drive the same, said bearing member having an opening therein, said hollow shaft having a plurality of radial openings adapted to register with the opening I in said bearing member, means for feeding steam into 4. A smoke control device comprising an elongated smoke box, an inlet at one end of said smoke box into which a smoke flue is adapted to discharge the smoke, blower means within said smoke box near said inlet, an outlet at the other end of said smoke box, a damper adapted to close said outlet, means for opening said damper, second blower means within said smoke box near said outlet, a substantially helical steam pipe disposed longitudinally within said smoke box intermediate said first and second blower means and extending substantially the length of said smoke box, said pipe having a plurality of openings therealong, an inlet at the end of said pipe nearest said first blower means, means for feeding steam into said pipe inlet, and said damper opening means connected to the second blower means to be operated by the same.

5. A smoke control device comprising an elongated smoke box, an inlet at one end of said smoke box into which a smoke line is adapted to discharge the smoke, a first shaft rotatably mounted in the end of said smoke box below said inlet, said shaft extending inwardly and outwardly of said end, means external of said smoke box for driving said first shaft, a blower propeller fixedly carried by said first shaft within said smoke box and said bearing member, an outlet at the other end of said smoke box, a damper adapted to close said outlet, a second shaft rotatably mounted in the other end of said smoke box above said outlet and damper, said second shaft extending inwardly and outwardly of said other end and being axially aligned with said hollow shaft and connected thereto to be driven thereby, a governor mechanism mounted upon the outer end of said second shaft and externally of said smoke box to be driven by the second shaft, means for connecting said governor mechanism with said damper to open said damper upon rotation of said second shaft, a substantially helical steam pipe extending substantially the length of said smoke box and an inlet at the end of said pipe adjacent said bearing member, said inlet being fixedly connected to the open end of said bearing member, said pipe at the other end thereof being fixedly connected to the inner end of said second shaft, said pipe having a plurality of openings therealong.

6. A smoke control device comprising an elongated smoke box, an inlet at one end of said smoke box into which a smoke flue is adapted to discharge the smoke, an elongated shaft rotatably mounted in the ends of said smoke box, said shaft extending outwardly of said smoke box at each end thereof, means external of said smoke box for driving said shaft, a blower propeller fixedly carried by said shaft within said smoke box and below said inlet, an outlet at the other end of said smoke box, a damper adapted to close said outlet, a governor mechanism mounted on the end of said shaft external of said smoke box and adjacent said outlet and damper, means for connecting said governor mechanism to said damper to open said damper upon rotation of said shaft, a substantially helical screw fixedly carried by said shaft within said smoke box, said screw extending longitudinally substantially the length of said smoke box, a substantially helical steam pipe surrounding said screw and freely spaced therefrom, said pipe having a plurality of openings therealong, an inlet at the end of said pipe adjacent said propeller and means for feeding steam to said helical pipe inlet.

7. A smoke control device comprising an elongated smoke box, an inlet at one end of said smoke box into which smoke flue is adapted to discharge the smoke, an elongated shaft rotatably mounted in the ends of said smoke box, said shaft extending outwardly of said smoke box at each end thereof, means external of said smoke box for driving said shaft, a blower propeller fixedly carried by said shaft within said smoke box and near said inlet, an outlet at the other end of said smoke box, a damper adapted to close said outlet, a governor mechanism mounted on the end of said shaft external of said smoke box and adjacent said outlet and damper, means for connecting said governor mechanism to said damper to open said damper upon rotation of said shaft, an exhaust propeller fixedly carried by said shaft within said smoke box near said outlet, a substantially helical steam pipe extending substantially the length of said smoke box intermediate said propellers, said pipe having a plurality of openings therealong, an inlet at the end of said pipe nearest said blower propeller and means for feeding steam into said pipe inlet.

8. A smoke control device comprising an elongated smoke box, an inlet at one end of said smoke box into which a smoke flue is adapted to discharge the smoke, a shaft rotatably mounted in the end of said smoke box below said inlet, said shaft extending inwardly and outwardlyof said end, means external of said smoke box for driving said first shaft, ajblower propeller'fixedly carried by said first shaft-within said smoke box and belowsaid inlet, a bearing member within said smoke box near said inlet and propeller, a hollow shaft rotatably mounted within said bearing member, said hollow shaft being closed at its end adjacent said first shaft, means for connecting said first shaft to said hollow shaft to drive the same thereby, said bearing member having an opening therein, said hollow shaft having a plurality of radial openings adapted to register with the opening in said bearing member, means for feeding steam into said bearing member, an outlet at the other end of said smoke box, a damper adapted toclose said outlet, a second shaft rotatably, mounted in the other end of said smoke box above said outlet and damper, said second shaft extending inwardly and outwardly of said other end and connected with said hollow shaft to be driven thereby, a governor mechanism external of said smoke box mounted upon said second shaft, means for connecting said governor mechanism with said damper adapted ,to open said damper upon rotation of said second shaft, a substantially helical steam pipe extending substantially the length of said smoke box.

and an inlet at the end of said pipe adjacent said bearing member, said inlet being fixedly connected to the open end of said bearing member, said pipe at the other end thereof being fixedly connected to the inner end of said second shaft, said pipe having a plurality of openings therealong, said means for connecting said governor mechanism to said damper comprising a downwardly extending arm slidably mounted uponsaid second shaft at its upper end and in operative engagement with said governor mechanism, said arm at its lower end having a slot, said smoke box above said damper having an opening adapted to receive said arm and slot, said damper being pivotally mountedabove said outlet, an upwardly extending second arm rigidly connected to said damper, and a pin rigidly connected to said second arm and adapted to, ride said slot.

9. A smoke control device comprising an elongated smoke box, an inlet at one end of said smoke box into whicha smoke flue is adapted to discharge the smoke, an

elongated shaft rotatably mounted in the ends of saidsmoke box, said shaft extending outwardly of said smoke box at each endthereof, means external of said smoke box for driving said shaft, a blower propeller fixedly carried by said shaft within said smoke box and below said inlet, an outlet at the other end of said smoke box, a damper adapted to close said outlet, a governor mechanism mounted on the end of said shaft external of said smoke box and' adjacent said outlet and damper, means for connecting said governor mechanism to said damper and adapted to open said damper upon rotation of said shaft, a substantially helical screw fixedly carried by said shaft within said smoke box, said screw extending longitudinally substantially the length of said smoke box, a substantiallyhelical steam pipe surrounding said screw and freely spaced therefrom, said pipe having a plurality of openings therealong, an inlet at the end of said pipe adjacent said propeller and means for feeding steam into said pipe inlet, said means for connecting said governor mechanism to said damper comprising a downwardly extending arm slidably mounted upon said second shaft at its upper end and in operative engagement with said governor mechanism, said arm at its lower end having a slot, said smoke box above said damper having an opening adapted to receive said arm and slot, said damper being pivotally mounted above said outlet, an upwardly extending second arm rigidly connected to said damper, and a pin rigidly connected to said second arm and adapted to ride said slot.

References Cited in the file of this patent UNITED STATES PATENTS 586,429 Farrell et al July 13, 1897 1,041,617 Goodrich Oct. 15, 1912 1,070,174 Player Aug. 12, 1913 1,082,245 Thomas Dec. 23, 1913 1,117,614 Wilder Nov. 17, 1914 1,269,724 Martin June 18, 1918 1,296,040 Bontya Mar. 4, 1919 1,747,619 Carpenter Feb. 18, 1930 1,769,613 Wilms July 1, 1930 1,990,315 Anderson Feb. 5, 1935