US1114093A - Boiler. - Google Patents

Description

J. E. 'ANGBLL.

BOILER.

APPLICATION FILED AUG.1, 1910.

Patented Oct. 20, 1914.

4 SHEETS-SHEET 1.

-J. E. ANGELL.

BOILER.

APPLICATION FILED AUG. 1, I910.

Patented Oct. 20, 1914.

, 4 SHEETS-SHEET 2.

J. E. ANGELL.

BOILER.

APPLICATION FILED AUG.1, 1910.

1,114,093. Patented Oct. 20, 1914.

4 SHEBTSSEEET 3.

- I fizz/6%) E Ma 6%,

i we Patented Oct. 20, 1 914.

4 SHEETISSHEET 4.

J. E. ANGELL.

BOILER.

APPLICATION FILED AUG. 1, 1910.

JOHN E. ANGELL, OF ST. LOUIS, MISSOURI.

BOILER.

. Specification of Letters Patent.

Patented Oct. 20, 1914.

Application filed August 1; 1910. Serial No. 574,984.

To all whom it may concern Be it known thatI, Joan E. ANGELL, a citizen of the United States, residing at St. Louis, Missouri, have invented new and usefut Improvements in Boilers, of which the following is a specification.

This invention relates to boilers and soot blowers, and its object is to provlde an 1m- 7 proved and superior ap aratus whereby jets of dry steam may be driven against the surfaces in the boiler and in the boiler setting which hold accumulations of ashes, soot-and other products of combustion.

Another object is to provide an apparatus for the purpose mentioned, oomprlsing a steam jet pipe, and an out-let therefrom for carrying oil allmoisture and other entrained substances from the steam, so that only dry steam will be ejected against the exposed parts of the boiler and boiler setting.

Another-object is to provide a plurality of pipes for carrying the steam used in blowing the soot, ashes, etc., in combination with discharge devices for carrying oli the entrained elements from the steamwhereby only dry steam will reach the destination,

and traps automatically controlling the outlet passages from the discharge devices.

Where moisture is permitted to enter through the blower such moisture, coming into contact with the soot and ashes, etc., forms a scale onthe tubes and other exposed parts of the boiler, which impairs the efiiciency of the boiler the same as does the formation of scale on the interior of the tubes.

Another object of the invention is to arrange the apparatus in combination with a device for accumulating and retaining and ultimately discharging the moisture and prevent it from being thrown'into contact with the soot and ashes, etc., on the tubes and other exposed parts of the boiler. The undesired mixture of moisture and oil and soot, in addition to forming a scale, also results in'the generation of sulfuric acid and causes a deterioration of the parts exposed to the action and eifects thereof. 7 Other objects will appear from the following description reference being made to the accompanying drawings, in which-- Figure. 1 is a side elevation ofa boiler and fire-chamber, with a portion of the walls of the latter broken away, showing my invention arranged in connection therewith.

Fig. 2 is a vertical sectional view on the line 2-2 of Fig. 1. Fig. 3 is an illustration of the chamber for receiving the moisture, and the devices for changing the direction of the jets. Fig. 4-is a sectional view of the moisture chamber and a part of the jet pipe communicating therewith. Fig. his

a plan view of the moisture chamber and the devices for changing the direction of the jets, with a part of the steam-jet pipe shown in section. Fig. 6 is a cross sectional view of the'steam-jet pipe. Fig. 7 is a view of a boiler having the steam pipe disposed across the end thereof. Fig. 8 is a sectional view thereof. Fig. 9 is a view illustrating the application of my invention 1 for blowing soot, ashes, etc., from a steam superheater, as well as from thetubes and other exposed parts of the boiler.

The drawings illustrate my invention in combination with a water tube boiler, in which the walls of the fire chamber are designated by A and the water tubes by B. I

.and which to a greater or less extent, insulate said pipes from the heat. For this purpose steam jets have been 'directed against and along the surfaces of the pipes with considerable success. The use of steam for removing the deposits has'been attended with more or less difiiculty caused partly 'or entirely by the elements entrained 1n the steam, such as water, oil, etc. My present invention includes a novel form of delivery or jet-pipe and a chamber for receiving and discharging the moisture, and

which are arranged and combined in such a way as to distrain from the steam practically all of these impeding and retarding elements which are culpable for the limitations and difficulties attending the use of soot cleaners at present in commercial use which employ steam as the cleaning agent.

- In the embodiment shown in Figs. 1 and,

2,-the steam-jet pipes 1 are supported transversely of the tubes B. There may be as many of these pipes as desired. In Figs. 1 and 2, two ,of-them are shown, one near each end. But the number and positions of the pipes may be varied to conform to the special requirements of. the dific'erent types of boilers. The pipes 1 are revolubly supported in bearings 2 (Figs. 4 and 5), located in the walls of the fire-chamber A and'may be held from longitudinal movement by collars 3 encircling said pipes against the interior ends of the said bearings, and by exterior flanges 4:. The said pipes 1 may be composed of sections as shown in Fig.2, connected. and secured together as shown in Fig. 5.- These pipes are of peculiar construction, being provided with two diverging .or flaring flanges 5 between which the steam-jet holes 6 are formed. These flanges form troughs or channels adapted to catch any water or other elements that may be entrained with the steam, so that only dry steam will be expelled throu h the holes 6, thereby avoiding those diflicu ties which are encountered in other soot cleaners which employ steam as the cleaning agent. It is preferable that the pipes 1 be mounted in a slightly oblique or inclined position with the ends at which the steam enters below the opposite ends, so that the water, etc., will flow to an outlet at the entering ends of the pipes. \Vhere two of the pipes'l are employed it is preferable that one of them be above and the other below the tubes B so that the steam-jets will be directed against all surfaces of the said tubes. These pipes ma be rocked to direct the steam jets in di erent directions. The upper pipe has a sprocket wheel 7 thereon anda depending chain 8 on said wheel, said chain constituting a handle whereby theoperator mayrock the pipe. A pointer 9 on the wheel indicates the position of the pipe and informs the operator of the direction of the jets. The lower pipe being within'reach of the operator does not require the wheel-and-chain device, but an ordinary handle '10 may be used, said handle also .acting as an indication to guide the user in directing the steamets.

Steam is brought to the pipes 1 through pipes 11 and chambers 12 arranged to receive and discharge the moisture. These chambers are of duplicate construction. A preferred construction comprises a chamber 12 having an oblique partition 13,. and a second partition 14 which is nearly vertical, and is of larger area than the entrance to the pipe 1. Said partitions form a tortuous passage through which the steam passes in order to enter the jet pipes leading from said chamber. A grid or break 15 may be mounted between the two partitions and serves to detach from the passing steam the greater quantity of the entrained elements,- the remainder being caught and detached by the flan es 5 in the pipes 1. The chamber extends elow the end of the pipe 1 so that the accumulated elements will not flow into the pipe, but may be carried off through an outlet or waste pipe 16.- The pipes. 16 from the various moisture accumulation chambers preferably lead to a common outlet pipe 17 which contains a trap 18 to close said pipes and prevent the escape of steam'therethrough. Each of the pipes 11 contains a valve 19 by which said pipes may be closed and the steam excluded from the chambers 12. and pipes 1. The connection between the pipes 1 and the chambers 12 permit the pipes 1 to be rocked to change the direction of discharge ofthe steam-jets.

In using this apparatus the valves 19 are opened and the steam will be ejected through the jet holes 6, in the pipes 1. The pipes 1 may be rocked so as to direct the steam jets against all of the tubes B and, because of the peculiar arrangement of the flanges 5,- the water, etc., caught in the said pipes will be prevented from passing through the holes 6, but will flow back to the chambers 12 and thence to outlet. The valves 19 may be closed after the tubes have been freed from the accumulations thereon. This device does notinterrupt the use of the boiler, but may be, and preferably should be, used at times when the furnace is going so that the combustion will assist in disposing of the detached soot, etc.

In the embodiment shown in Figs. 7 and 8 a pipe 20 receives steam from the supply 20 is located outside the fire-chamber and has a series of pipes 23 opening into the usual tube-bolts 24 by which the steam jets are conducted to the tubes B. The pipes 23 maybe arranged in any desired relation so as to obtain the greatest efficiency from the steam jets. The. accumulated elements may be removed from the chamber 22 through a suitably controlled outlet 25.

In Fig. 9 I have shown my invention arranged to blow the soot, ashes and other products of combustion from the tubes B, and from a superheater- C. In this arran ement the pipe is revoluble so as to direct t e steam jets against all surfaces on which the soot, ashes, etc., accumulate.

. I am aware that there may be various various arrangements of the parts thereof, without the least departure from the spirit and scope of the invention, I do not restrict myself to the identical structures shown, but

What I claim and desire to secure by Letters-Patent is Y 1. In a soot cleaner, a steam-jet ing outlets through one side thereo supplypipe for delivering steam to said jet pipe, a chamber connecting said supply pipe with one end of said jet pipe, an oblique partition in said chamber, a second partition in said chamber of larger area than the entrance to said jet pipe, said partitions forming a tortuous passage in said chamber between said supply pipe and said jet pipe, and an outlet from said chamber below said partipipe havtions, substantially as described. 2. In a soot cleaner, a steam-jet pipe, a

pipe 21 and moisture chamber 22. The pipe other embodiments of my invention, and

a steam supply pipe for supplying steam to said jet pipe, a chamber at one end of said jet pipe for receiving condensed moisture dischar ed from said jet pipe, parts in said cham er forming a tortuous passage between said supply pipe and said jet pipe, a passage for withdrawing condensed steam from said chamber, and means for rocking said jet pipe.

3. In a soot cleaner, a steam-jet pipe mounted in an inclined position, a pipe for supplying steam to said jet pipe, a chamber connected with and extending below the lower end of said jet pipe for receivin condensed moisture discharged from sald jet' plpe, a passage from. the lower end of said chamber, and automatic means for re lating the flow of the condensed molsture through said passage, substantially as described.

4. In a soot cleaner, a steam-jet pipe, a trough in said pipe arranged to collect condensed moisture, a pipe for supplying steam to said jet pipe, a chamber supported by said steam supply pipe and connecting said supply pipe with one end of said jet pipe to receive moisture discharged from said jet. pipe, a discharge outlet from said chamber, and a trap controllin said discharge outlet, substantially as speci ed.

5. In a soot cleaner, an inclined jet pipe, a chamber connected to the lower end of said jet pipe, a trough in said jet pipe for accumulating and conducting the moisture in said pipe, a steam supply pipe opening into said chamber, a partition wall supported within said chamber between the supply pipe and the jet pipe, and an outlet from said chamber, substantially as specified.

6. In a soot cleaner, a jet pipe revolubly mounted in an inclined position, a chamber connected to the lower end of said pipe, a steam pipe constituting a support for said chamber and opening into said chamber for supplying steam to said jet pipe, avertical partition in said chamber adjacent to the inlet of said supply pipe and the outlet to said jet pipe, and an outlet from said chamber, substantially as specified.

7. In a soot cleaner, a jet pipe mounted in an inclined position, a trough formed in said pipe,..means for rocking said jet pipe, a steam pipe for delivering steam into the lower end of jet pipe, and an outlet passage for discharging condensed moisture accumulated in said trough and conducted thereby to the lower end of said jet pipe, substantially as specified.

8. In a soot cleaner, a jet pipe mounted in an inclined position, means for rocking said jet pipe, a chamber connected to the lower end of said jet pipe and arranged to receive the condensed moisture, a pipe for delivering steam into said chamber and thence into said jet pipe, a discharge outlet from said chamber, and a trap controlling said discharge outlet, substantially as specified.

9. A soot cleaner for boilers provided with flues comprising a jet pipe mounted transversely of said flues, flaring walls in said jet pipe constituting a longitudinal trough formed integral with the interior of said jet'pipe, a plurality of steam outlets arranged at the bottom of the trough and extending through said jet pipe, wall, a chamber at one end of said jet pipe, an ad justable connection between said jet pipe and said chamber, means for manually rocking said jet pipe, an indicating device for indicating the position of said jet pipe, a steam supply passage entering said chamber opposite the end of said jet pipe, and a partition arranged in said chamber between the adjacent ends of said steam supply pipe and said jet pipe, substantially as specified.

10. A soot cleaner comprising a jet pipe provided with a series of openings extending longitudinally along one side thereof, flaring walls formed in said jet pipe at either side of said openings and diverging outwardly therefrom, a chamber at one end of said jet pipe, a steam supply pipe entering said chamber opposite to said jet pipe, and a vertical partition wall arranged in said chamber between the adjacent ends of said steam supply pipe and said jet pipe around which the steam must flow to enter said jet pipe from said steam pipe, and a discharge supply pipe leading from the lower end of said chamber, substantially as specified.

In testimony whereof, I have signed this specification, in the presence of two subscribing witnesses.

JOHN E. ANGELL. Witnesses:

FRANKLIN MILLER, J. D. RIPPEY.

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