US1318294A - Vahia - Google Patents

Description

J, KISSICK, JR., AND C. DE VED.

TUBE CLEANER FOR BOILERS.

APPLICATION FILED FEB. 28, 1917.

l ,3 18,294. Patented Oct. 7, 1919.

2 SHEETS-SHEET 2.

JOSEPH KISSICK, JR., 0F NEW YORK, N. Y., AND CHARLES DE van, or PHILADELPHIA,

PENNSYLVANIA, ASSIGNORS TO FREDERICK W. LINAKEB, OF DUBOIS, PENNSYL- VANIA.

TUBE-CLEANER FOR BOILERS.

Specification of Letters Patent.

Patented et. t, 1919.

pplication led February 28, 1917. Serial No. 151,521.

To all whom t may concern:

Be it known that we, JOSEPH KIssioK, J r., residing in the borough ci' Manhattan, city, county, and State of New York, and CHARLES DE Vrin, residing in the city and county of Philadelphia, in the State of Pennsylvania, rboth citizens of the United Sta-tes of America, have jointly invented certain new and useful Improvements in Tube- Cleaners for Boilers, of which the following is a specification.

This invention relates to tube cleaners `for boilers, especially boilers of the water tube type' having staggered rows of tubes, and aims to provide improvements therein.

Revolving or oscillating jets of steam are used for 'blowing down the diagonal space between rows of lboiler tubes, for the purpose of blowing oi the soot and ash deposit which settles upon the tubes.

The present invention relates to this type of cleaners, and provides a simple and eii- -cient yoonstruction whereby the jet is rendered effective throughout its revolution or oscillation in the direction of the diagonal between the tubes, the invention com rising defiecting, means which maintain t 'e jets substantially in the mid plane of the diagonal space between the rows of tubes, substantially throughout the part of the movement of the jet in the' direction of the bank of tubes.

t is important to maintain the axis of the jet in the mid plane of the interval betweenl the rows of tubes, inasmuch as otherwise the jet is too much broken up, inpwhole ,or in part, thereby not reaching tubes, or portions vof tubes, in a lower part of the bank, and

also is of insufficient intensity to carry oli' the soot which is blownfo of the tubes. Moreover, as the atmospli'ere in which the cleaners work is quite hot and contains acid,-

gases oi' fumes, it is essential that the construction be of maximum simplicity and have a minimum of moving parts. Moreover, the impin ement of jets on the tubes has an apprecia le wearing action thereon. Two embodiments of the .invention are illustrated in the accompanying drawings.

In said drawings,-

Figure 1. is a transverse sectional View of i a boiler showing one embodiment of the invention applied thereto;

Fig. 2 is a detail View of the embodiment of the invention shown 1n Fig..1;

Figs. 3 and 4. ane respectively a side elevation and a to plan view of the construction shown in 4ig. 2;

Fig. 5 is a view similar to Fig. 1,'showing a secondembodiment of the invention;

Fig. E is a detail View ofthe embodiment shown in Fig. 5, the parts being shown in section;

Figs. 7 and 8 are side lelevation. and top plan views respectively of the construction shown in Fig. 6.

Referring first to the' embodiment shown in Figs. l to 4 inclusive, the numeral l designates a series of boiler` tubes arranged in diagonal rows; 2 designates a steam pipe adapted to be rotated or oscillated at suitable times, and by suitable means"throughv a .sprocket wheel 3 or the like.' Upon the pipe 2` is a series of nozzles 4: adapted to direct jets of steam down the interval between the rows of tubes, the cleaning being done by diverging portions of the jet striking against the tops and sides of. the tubes and blowing 0E the soot or ash thereon. There is also a secondary cleaning action of the jet due to the deflection of the diverging portions thereof from one tube to anothe The nozzles 4 have their axes substantially parallel or coincident with the mid plane of the diagonalinterval between the tubes, when the nozzle is directed downwardly at one (or two) point. Referring to Fig. 2,' it will be seen that the axis 7 generates a conoidal surface a, or a portion of a 4conoidal surface, as it revolves or oscillates. The surface of the cone is hence only parallel or coincident with the mid plane of the-diagonal interval between the tubes at one (or two) point. At other points of its movement the jet is blowing either more toward the tubes on one side of the mid plane of the interval, or toward the tubes on the other side. Suiiicient movement will bring the jets to a point where the tubes will entirely or largely deflect the jet from the diagonal interval between the tubes. Hence it is possible for the jets to. blow straight down the interval between the tubes for only a ver limited part of its' movement. The e ciency of the jet is hence much below its maximum.

In order to maintain the axis of the jet coincident or parallel to the mid plane of the interval between the tubes during the time that the nozzles are blowing in the direction of the tubes, means are provided for this purpose. The means preferably comprise defiectors 8 having suitably warped or curved surfaces 9 to deflect 0r correct vthe jet, so that it will blow with its axis substantially parallel or coincident with the mid plane of the interval between the tubes, in all positions of the nozzle where it blows in the direction of the bank of tubes. In the construction illustrated the surface between the curved lines m and y is a curved surface formed by joining the end points of an infinite number of vradiating parallels to the revolving axis of the jet (having their locus in the line to the end points of an ininite number of radiating lines running parallel to the mid plane of the diagonal interval (having their locus in the line y).

The spacing of the jets and deflectors is preferably such as to give the desired cleaning action. One may be placed in conjunci tion with each tube row or interval, orin conjunction with alternate rows orinter vals, or otherwise. As here shown the deflectors are placed in conjunction with alternate tube rows or intervals, and the jets or nozzles are in pairs adapted to blow down intersecting diagonal intervals.

Conveniently, also, the defiecting surfaces 9 may be formed upon a saddle 11 which straddles a pipe, which saddlek may, also conveniently, have bearings 12 thereon for supporting the tube 2 through which the steam is conveyed to the nozzles 4.

Referring to the embodiment shown in Figs. 5 to 8 inclusive, the numeral 1 indicates, as before, rows of boiler tubes; the numeral 2' a steam pipe, vand 4r nozzles adapted to directjets of steam intothe interval between the rows of tubes. The axes 7 of the nozzles, in this embodiment, revolve in a circular plane, which circular plane is at an langle to the mid plane between the diagonal interval betweeny the rows of tubes. For'directing and maintaining the jets in the mid plane of the diagonal interval, suitable delecting means 8 are provided, these deiiecting means being provided with suitably .concaved 'surfaces 9', the curvature decreasing from" the middle toward the side portions o, o. The,

action of the surfaces 9 willbe to deflect the jet into the 'diagonal interval 'between the rows of tubes, throughout the portion of the revolution of the jets where the jetsl blow in the direction of the tubes. The diverging ,portionsl of the jetand the deflections of these diverged portions by `the tubes, effect the cleaning of of the soot, etc., deposited on the tubes.

The deflectors andy ets may be so disposed with relation to the rows of tubes as yto give the desired cleaning effect. As here shown, the deflectors are shown as formed upon a saddle 11 carried by a tube in every The saddles 11 may have bearings In certain types of boilers, the diagonal rows of tubes are not strictly in a. straight line, but are slightly staggered. In this case it is desirable not to have the axes of the jets entirely symmetrical with respect to the vertical plane w of the tubes. The axis of the jet upon one side (as here shown,

upon the left-hand side of Fig. 6) is nearer;l f its plane of symmetry than the axis of the' jet upon the otherside (the right-hand side of Fig. 6) is to its plane of symmetry. The

effect of this arrangement is to diminish the deflecting action of the immediately-adjacenttubes.

While we have illustrated and described two embodiments of the invention, the inst l vention is not to be understood to be limited thereto, as the inventive ideas are capable of more various mechanical expressions.

What is claimed is 1. A boiler-tube cleaner, comprising jetforming means vfor directing a rotatable jet of steam toward a diagonal interval between rows of boiler tubes, and means for deflecting the jet to retain it in the diagonal interval between the rows of tubes, said de'-` lecting means comprising a concaved curved;

surface.

2. A boi'ler-tubelcleaner, comprising jet-` `r forming means for directing a rotatable jet of steam toward a diagonal interval between rows of boiler tubes, and means for deflect- 'ing the jet to retain it inthe diagonal in.

terval between the rows of tubes, said deflecting means comprising a Idierentially concaved curved surface.

3. A boiler-tube cleaner, comprising jetforming means for directing a yrotatable jet.'

of steam toward a diagonal interval between rows of boiler tubes, and means for deflecting the jet to retain it in the diagonal interval between the rows of tubes, said deiectlng means comprising a pair of concaved curved surfaces,.sa1d surfaces being adapted to differently modify the jets impingin'g thereon.

4. A lboiler-tube cleaner, comprisingjet-i" forming'means for directin a rotatable -jet of steam toward a diagonal interval between rows' of boiler tubes, and means' for deiecting the jet to retain it in the diagonal intervalfoetween the rows/of tubes,- said jetdeflectln means comprising a concaved surface an plane surface intersecting the concaved surace.

5. A 'boiler-tube cleaner, comprising a steam-pipe capable of rotary movement, jetforming nozzles thereon for Adirecting a jet of 'steam toward-- the rows of boilervtubes, a'

a nozzle whose axis generates a bearing for said rotary steam-pipe, said bearing having a concaved curved surface for deecting the jet to retain it in the diagonal interval between the rows of tubes.

6. In a soot cleaner for water tube boilers, the combination of a revolubly mounted cleaning fluid distributing pipe having radial discharge jets, means for supporting the pipe adjacent the boiler tubes, and means for protecting the tubes adjacent the cleaning pipe and for causing the jets issuing radially therefrom to travel in oblique paths through the boiler tu'bes, said last named means including a concaved face directly contacted by the cleaning fluid issuing from said pipe.

7. In a soot cleaner for water tube boilers, the combination of a revolubly mounted cleaning Huid distributing pipe having ra dial discharge jets, means for supporting the pipe adjacent the boiler tubes, and means for protecting the tubes in line with the discharge jets and for causing the jets issuing radially therefrom to travel in oblique paths through the boiler tubes, said last named means including a concaved surface curved on an arc concentric with the distributing pipe.

In witness whereof, we have hereunto signed our names in the presence of two subscribing witnesses.

JOSEPH KISSICK, JR. CHARLES DE VED. Witnesses:

GUsTAvn R. THOMPSON, THOMAS F. VALLAGE.

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