US2066014A - Soot blower - Google Patents

Description

E. PFLElD ER D'ec. 29, 1936.

SOOT BLOWER Filed Sept. 2, 1953 2 Sheets-Sheet l Dec, 29, 1936. E. PFLEIDER I 2,066,014

sooT BLOWER Filed Sept. 2, 1933 2 Sheets-Sheet 2 flog/i251- Zf/zs ffaderer;

0 destruction thereof by the high temperatures enextremity distant from the apertures IB-IB with Patented Dec. 29, 1936 i UNITED STATES PATEN'i` OFFICE soo'r BLOWER Ernst Pileiderer, Ludwigshafen, Germany, as-

signor, by mesne assignments, to Diamond Power Specialty Corporation, Detroit, Mich., a corporation of Michigan Application September 2, 1933, Serial No. 687,939

'7 Claims. (Cl. 122-392) The present invention relates to improvements Figures 9, 10 and 11 are views similar to Figin soot blowers. ure 8 but show slight modicatons from the In certain water tube boiler installations means structure shown in Figure 8; and have been provided for blowing steam or other Figures 12 and 13 are sectional views similar fluid medium upon the tubes to Vremove soot or to Figure 8 but showing two slightly different 5 other forms of incrustation therefrom. Such demodifications involving the distribution of coolvices have included tubes permanently located ing pipes as shown in Figures 5, 6 and '7. within the boiler, said tubes being provided with The numeral I5 indicates a tube closed at its apertures for the delivery of steam into engagetwo ends but provided with the apertures I5I6 ment with the tubes to be cleaned. Such instaladjacent to one of its ends through which steam 10 lations are termed soot blowers. The tubes remay be projected. Said tube I5 is provided with ferred to are of course subjected to very high a plurality of cooling tubes extending therealong temperatures,A and it has been proposed to cool parallel with the axis of said tube I5. According such tubes by means of circulation of water to the constructions illustrated in Figures 2, 3, 4 therethrough. and 8 to 11 inclusive, a pair of longitudinally ex- 15 The present invention contemplates a soot tending tubes I1 and Iare provided which are blower which may be mounted as a permanent connected together at one end of the tube I5. part of a boiler which is rotatable so that jets Means are provided for directing cooling water of steam may be projected in selectable direcout through one of said'tubes and back through tions and which will be water cooled to prevent the other thereof. The tube I5 is provided at its countered in service. A primary object of the the turning means IBA, which may take the present invention is the provision of such a soot form of a lever, chain wheel, or other preferred blower construction. turning means. f

A further object is to provide a relatively The present invention contemplates stationary 5 simple soot blower which is efcient in service bearing means for supporting the rotatable soot 25 and which is relatively cheap to manufacture. blower including the pipe I5 and the cooling A further object is to provide a water cooled tubes I1 and I8, and for this purpose that por. soot blower having efficient means for rotatably tion of thesoot blower which is in engagement mounting said soot blower, together with imwith the bearings has a cylindrical contour, 3d proved means for conducting cooling water to which will be described presently; said soot blower and discharging said water from Stationary bearings I9 and 20 are provided; said soot blower. y The bearing I9 is provided with means for ad- Further objects will appear as the description mitting steam to the interior of the tube I5. To proceeds. this end the bearing I9, which is stationarily 35 Referring to the drawingsmounted, is provided with the spaced annular ribs Figure 1 is a view in longitudinal section of ISA-ISA adapted t0 I'Otatably receive theV one embodiment of the present invention; cylindrical contour of the pipe I5 and cooling Figure 2 is a sectional view taken along the tubes I'I and I8. Said annular ribs provide beplane indicated by the arrows 2-2 of Figure 1; tween them the annular steam space 2|, which Figure 3 is a sectional view taken along the through the Opening 22 in the bearing 2U has plane indicated by the arrows 3-3 of Figure 1; communication with the steam supply pipe 23. Figure 4 is a sectional View taken along the The pipe I5 of the soot blower is provided with plane indicated by the arrows 4-4 of Figure 1; the openings 24-24 communicating with. the

Figure 5 is a View similar to Figure 2 but showsteam space 2l. Steam may therefore be ading armodified distribution of cooling tubes; mitted through the steam supply pipe 23 through Figures 6 and 7 are views similar to Figures the openings 2li-24 and will be delivered from 3 and 4, respectively, but showing the modifica--V the pipe I5 through the apertures Iii-IS. The tions attendant to the use of the modif-led disbearing I9 is provided with vthe glands 25--25,` tribution of cooling pipes illustrated in Figure 5; which in cooperation with the gaskets 26--26 pre- 56 Figure 8 is a sectional view taken along the Vent the escape of steam from around the bearplane indicated by the arrows 8-8 of Figure 1 ing I9. Y and showing the distribution of cooling pipes in The bearing 29 is provided with the annular accordance with the construction illustrated in ribs 2I-21, which provide between them the Figure 2; annular water space 28, which through the port 55 29 communicates with the water pipe 30. The water tube I8 is provided with the port 30A communicating with said water space 28. Gaskets '3I-3I are disposed upon the opposite sides of said ribs 21-21 for cooperation with said ribs. Disposed upon the lower side of the lower gasket 3| as the parts are viewed in Figure 1 is the sleeve member 32, which is illustrated as being of I- shaped contour in cross section. The web of the sleeve member 32 is provided with a plurality of ports 33-33. the port 34 disposed in proximity to the web portion of the sleeve member 32. The bearing 20 is provided with the port 34A through whichv communication is had to the water pipe-`34B. Disposed below the sleeve member 32 is the gasket 35. Glands 36-'36 serve to hold the gaskets 3I-3I and 35in compressed condition whereby escape of water from within the bearing 20 is prevented. 'Ihe pipe I5 and the water tubes I1 and I8 are closed `at `their extremities adjacent to the turning member vIIIA.

In order that'the `soot blower comprising the pipeIS and the ytubes I1 and I8 may be turned within the bearings I9 and-20, the present invention contemplates a structure in which the` assembly of said pipe' I5 and tubes I1 `and I8 is built up into cylindrical form at the regions thereof journaled `within said bearings I9 Vand 20. The cross: sectional views appearing in Figures 2, 3 and 4 illustrate the fact that the tubes YI1 and I 9 are joined to the pipe I5 both physically and thermallybymeans of the metallic deposits indicated by the numerals 31-31. These deposits 3.1-321 are vrepresented by VrelativelyV dense cross sectioning.

The material for forming the cylindrical contour of the soot blower is indicated by the numerals 38--38, it being noted that access to the ports 24-42'4 .isnot interfered with,k By reason of the I-shaped contour of the sleeve member 32, access between the tube I1 and the water pipe 34B is "insured Iregardless of variations within limits Vin the degree of compression of the gasket 35 and the gasket 3| adjacent thereto. In .other Words, the I-*shaped member 32 may vary considerably in its axial position without interfering with access :between the water pipe 34B and Water tube I1. The illustrated construction is cheap .and obviates the necessity for niceties in manufacture.

In 'the operation of the embodiment of the `invention illustrated in .Figures l to 4 inclusive, steam for Vsoot blowing purposes is admitted through .the pipe`23 and enters the Ypipe I5 'through the lport 24. The steam jets ypass out through the apertures I 6I6. may be turned by means of the turning .member I8A so that said jets may be directed in any desired direction radiating from the axis Yof the tube I 5.

Water for` coolingpurposes may be admitted through the pipe 34B and will Vpass through one of the ports 33 into the annularspace within thev web of the s'leevemember 32. From saidannular space .the cooling water will enter the port V34 in `heitube I1`andpass along :said tube to the other extremity thereof Vinto the tube I8. The Water will be discharged from the tube I8 through the port 30A-into the. water space 28 and through the pipe 30.

Figures 8, 9, 10 and 11 illustrate slightly differ.- Y

ent constructions of the assembly of pipe I5 and tubes I1 vand I8 in the regions thereof upwardly of the bearing 2.0 asthe parts are Viewed in Fig- The water tube I1 is provided withf 1 The soot blowerV the tube I5 is swedged slightly inwardly at the regions adjacent to the tubes I1 and yI8 whereby to increase the area of physical contact between the tubes I1 and I8 and said pipe I6. The deposits of welded metal 31 serves, in the manner previously discussed, to connect the tubes I1 and I8 both physically and thermally to the pipe I5.

Figure 10 illustrates a construction in which the tubes I1 and I8 are held in position relative to .thepipe I5 by means of the angle members 39, which are bowed to conform to the contour of the tubes I1 and I8 and which are united to the pipe I5 vby lmeans of the deposits of Welded. metal 40-40. Y Figure 11 is similar to the construction shown in .Figure l0 but shows the pipe-I5swedged inwardly to conform to the adjacent contours of the tubes `I1 .and I8, whereby to increase the area. of contact between the pipe `I 5 and the tubes I1'and I8.

Figures 5, 6, 7, `12 and 13k illustrate a construction in which four tubes are provided for carrying cooling water in thermal communication with the pipe I5. The four tubes for cooling water are indicated by the numerals 4I, 42, 43 and ,44. As shown in Figure 5, 7said tubes 4I, 42, 43 and 44 are disposed in position symmetrical with each other and with the axis of the pipe I5 and arev so disposed circumferentially of the pipevI5 that they leave the ports 24-24 unobstructed. By reference to Figure 7 ity will be noted that the pipes 4I and 44 are provided with the ports 45 and 46 communicating with the annular space within the web of the sleeve member 32, whereby cooling water enter-ingy from the cooling pipe 34B may, through the ports 33-33, have access to said tubes 4I and 44. The water will ow upwardly through .said tubes 4I .and 44 and will ow downwardly through the tubes 43 and 42, respectively. By reference to Figure V6 V:it will be noted that said tubes 4'3 and 42 are provided Withthe the tubes 4 I, 42, 43 and 44 tothe pipe' I 5 by means K of angle members, after the fashion `illustrated in Figures l10 and 11, respectively, 'in whichjan Y angle .member 39 is provided for -eachfof the cool-V ing tubes, and has each of .its edge' portions firmly united4 to the .pipe I5 by means of depositsV of weldedmaterial, indicated bythe numerals 40- 40. s y

Though certain preferred embodiments of ythe present invention have been described in detail, many modifications will occur to those skilled in the art. It is intended to cover all such modications that fall within the scope of the appended'claims. Y

What is` claimed is A 1. kIn a soot blower, in combination, `a steam pipe and water tube means extendinglongitudinally thereof in thermal communication with said pipe, means for conducting steam to said 55, Figures 12 and'13 show meansfor connecting ""f pipe, a bearing for said pipe and tube means, said pipe and tube means being provided with a cylindrical portion cooperating with said bearing, said bearing providing a water space in cooperation with said pipe and tube means, said tube means having aport communicating with said water space, gaskets in said bearing, and a sleeve member within said bearing encircling said pipe and tube means, said sleeve member having a portion of I-shaped contour, said portion of I-shaped contour being provided with ports, said tube means being provided with another port spaced from said rst mentioned port and communicating with the space on one side of the web of said portion of I-shaped contour, said sleeve member being adapted to move longitudinally of said pipe in cooperative relationship with said gaskets, said bearing having a Vwater port communicating with the space on the other side of said web.

2. In a soot blower, in combination, a steam pipe and water tube means extending longitudinally thereof in thermal communication with said pipe, means for conducting steam to said pipe, a bearing for said pipe and tube means, said pipe and tube means being provided with a cylindrical portion cooperating withV said bearing, said bearing providing a water space in cooperation with said pipe and tube means, said tube means having a port communicating with said water space, gaskets in said bearing, a. sleeve member within said bearing encircling said pipe and tube means, said sleeve member having a portion of I-shaped contour, said portion of I- shaped contour being provided with ports, said tube means being provided with another port spaced from said rst mentioned port and communicating with the space on one side of the web of said portion of I-shaped contour, said sleeve member being adapted to move longitudinally of said pipe in cooperative relationship with said gaskets, said bearing having a water port communicating with the space on the other side of said web, and means for communicating a turning movement to said pipe.

3. In a soot blower, in combination, a pipe having perforations in a wall thereof, means for turning said pipe, and a pair of tubes disposed along said pipe having their axes parallel with the axis of said pipe and having their adjacent extremities connected together, deposits of Welded metal connecting said tubes thermally and physically to said pipe, a portion of the length of said pipe and tubes having Welded metal so deposited thereon as to provide a cylindrical contour for said portion, and bearing means cooperating with said portion of cylindrical contour and provided with inlet means for steam to said turning said pipe, and a pair of tubes disposed Y along said pipe having their axes parallel with the axis of said pipe and having their adjacent extremities connected together, a portion of the length of said pipe andY tubes having Welded metal so deposited thereon as to provide a cylindrical contour for said portion, and bearing means cooperating with said portion of cylindrical contour and provided with inlet means for steam to said pipe and inlet and outlet means for water to said tubes, said pipe being provided with longitudinal grooves in its Wall, said tubes being seated within said grooves.

5. In a soot blower, in combination, a pipe having perforations in a Wall thereof and a pair of tubes extending along said pipe in contact with the'exterior of the wall of said pipe, an end of one of said tubes having communication with an end of the other of said tubes, and means Vfor holding said tubes in thermal and physical connection'with said pipe, said means including deposits of welded material extending longitudinally ofsaid pipe, bearing means for said pipe providing access of steam to said pipe and access of water to one of said tubes and from the other of said tubes, and means for turningfsaid pipe in said bearing means. Y

6. In a soot blower, in combination, a pipe, said pipe having perforations in a wall thereof and tubes extending longitudinally of said pipe in contact with said wall, straps engaging said tubes, said straps having portions engaging said pipe on the two sides of each of said tubes, and deposits of Welded material extending alongsaid pipe and the edges of said straps for holding said strapsin xed position relative to said pipe.

7. In combination, in a soot blower, a pipe having perforations ina wall thereof, water tube means thermally connected to said pipe and extending longitudinally thereof, bearing means for said pipe and tube means, said bearing means providing a steam space surrounding said pipe and tube means and an inlet to said steam space, said pipe having a port communicating with said steam space, said bearing means also providing a pair of water spaces surrounding said pipe and tube means, said tube means having a pair of ports communicating with said water spaces, said bearing means also providing an inlet and an outlet for said water spaces, and means for turning said pipe and tube means Within said bearing means, said pipe having grooves in its wall within which said tubes are seated.

ERNST PFLEIDERER.

CERTIFICATE OF CORRECTION.

Patent, No. 2,066,014.e December 2e, 193e.

ERNST PFLEIDERER.

It is hereby certified that error appears in the above numbered patent requiring correction as follows: 1n the heading no the drawings, the name of the patentes-3 is erroneously Written and printed as "E. Pfleider" whereas said name should have been written and printed as E. Pfleiderer; and that. the said Letters Patent should be read with 'this correction Jherein that the same may conform to the record of the cese in the Patent Office.

Signed and sealed this 16th day of March, A. D. 195'?.

Henry Van Arsdale (Seal) Acting Commissioner of Patens.

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