US1508679A

US1508679A - Soot blower

Info

Publication number: US1508679A
Application number: US323290A
Authority: US
Inventors: Philip W Dalrymple
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-09-12
Filing date: 1919-09-12
Publication date: 1924-09-16
Anticipated expiration: 1941-09-16

Description

vSept-16,1924. I 1,508,679

P. W. DALRYMPLE SOOT BLOWER Filed Sept. 12, 1919 3 Sheets-Sheet 1 Sept. 16, 1924.

P. W. DALRYMPLE SOOT BLOWER Filed Sept. 12. 1919 3 Sheets-Sheet 2 gijvm- Se t. 16 1924. 1,508,679

P. W. DALRYMPLE S 0 0T BLOWER Filed Sept 12 1919 3 Sheets-Sheet. 5

Patented Sept. 16, 1924.

PHILIP w. DALRYMPLE, 10F BALTIMORE, MARYLAND.-

eooe BLOWER p e-wee ti e @eefimhe 1919- iel 9 3 290- Pl nts, On ofth ifli ult es n ei p eifed lu the aeeii l i n'o s t, as arb-0 ashese i other so id predue of eembustiel thehe z ting surfaces. This ELQCLUlliilfltliOIll ee as e; most e fecti e ins l t o nd 17edu es he fi filfilli y of h Plan in P QPQ b'n t0 the extent o t e e'e i l etienhas been u o iiify in the pes to c e n h heziti ig su aeee from im to t m by brushii'g 'ei sc aping, and co ling the erjto permit access for h s awn-P se $11911 09 ig mea s he les of s v e lhqurs Op ra ionf "the ener ing uni and i the meierity of plan m e b avoided if p seib e For use in prev ti g uch ac umula ion rin-relocat ng hem from i e to timeb'e or 'th y become e9 extensiv tmmeke hut ing de i (of h unit-"end cooling-[ he oiler necessary, apparatu known asf'sqet' blow rs has been (prov ded i arious forms- SiiQh Qe' lo er cemmenly n i t t .e r h e.

' group, a change of ci reotio'n being ac'combe 'e ry of wee-e eo nec'ted ee t am head or 'd directedatthe he ing surfeeesen i i v i .t

' and momentum to one or'more ofthe oom- Whih th ee umula n efe ee o e i es't extensi ely depos ed. When i i cles r'e to m ve the acfc uliulatlon, s. projec ed rom t nozz es against the u tece o b leaned, ues eting t e Pa ic e s th t hl y amp intothe re'o'r a e arr ed up the flue- Steem boil rs a ed id'ed into te Wel nown types, fi e tu e and 'We ertube, The heg ting surfaces of fire tube boilers ate Q9111: pa iv y convenien of a cess for th pi poeeof: blowing out such eecmimle ione but water tube boilers are 1. .3 iwfiessihle for I this operation. One f the ,diiiiouities is thzit flue blm ng noz les, t eefi' etive, mus be oca ed in th flho p of h r a e,"

Owing t he ce te qf t heating surfee o e Cle ned and. its die ributien, th di econ of. h et em bl t m th V ious new les m st e ha ged, that is, the surface mile h wep y theblest whieh is dire t d from im to timeh ei st th-dil fe entpor imes o th si rfaee t be treated- V i u icesem yi e' eeee e eieli d pted to ;be swung through an are or having a 9111-" versai connection, have been installed, but he n er se e t d ieh t ey e u i c d has had the effect of making the moving Part inop t ve, a d cle ni g o the hea mg surfaces by the old of direct method of oooling the for aoe and scia ping the ri hits een 1Il QQ W e'ten h SW s i t Hiit dQ The Presen inve e P Q d /S 1 5 3 or more ooi i'eot ly; an arrangement of ,iiozzles by Whihe s am ib iiso ql s f 313 fluid tinder e esslure may b e trel ed a sj'd ie tien' W thout han i the pqs on. el-elation of the n'iz lesi'et v id Wiflf l any m vi parts l f ii i y o th nzl zies 01 their suppo its, "'S ichen'arra igefl eht of nozzles has beeii show' in the aoc on fiziiiji ne' dra in s n eennee ql vi a W te tub boiler, the s in 01 1 r si g, wi h news; Silly oon'nectionsf eyes," et o, 21 11 iiiip'roi'led oot bl wing @Piwr t e In acoo fdfzm ce with the ihvention the nozzles z 'ree im igeglin groups so that the jets or blasts from "eaoh pf apl ifality of nozzles combine 131efefz b1y".1ie2if or pon es of "the hlozz ies, the ciii eotion. of the -es il t-zintbiast iS CQIitfQiiiGi by ohaiigirig the eiatiifiepressiire at Whioh the fluid Coinposing the blast "is supp lieeifto Ema released fro'ni' the l espectlvenozzles form ng such a biped strezims oil'blasts over that" from the remaining nozzle or noz'ziesi i the'pztytiou lai" groiip of oonvergiiig nozzles. i In th eceemp i e l I e i1 lust rated a .Water tiibe boiler to Which e sootbiotvir g' apparatus embodying my invention is applied.

Figu e l is a sideeievation, partly inseoof"iiliistratioi1", the, game being adjacent from which co-operating nozzles of the same groups are fed.

Figure 6 is a view taken at right angles to the plane of Figure 5 looking from the right of the apparatus as shownin Figure 5.

Figure 7 is a figure corresponding to Figures 3 and 4 showing the distributing pipes with the nozzles grouped in threes.

Figure 8, is a plan view of Figure 7.

Figure 9 is an elevation of the water j acketed unit looking from the rear, i. e.,-the bridge wall end of the furnace toward the front.

Figure 10 is an end elevation of the same looking from the left in Figure 9.

Referring to the drawing by numerals, the installation shown in Figure 1 includes a drum 1, headers 2 and 3 connected to opposite ends of the drum, the header 3 being lowest, and a nest of tubes 4 having the usual incline leading from the lower header 3 to the upper header 2. These tubes may have the usualor any suitable arrangement. They are located in a furnace 5 having a bridge wall 6 beyond which is a flue 7.

Crossing the group or nest of tubes 4 at right angles, preferably above and below the tubes and suitably spaced so that the steam can reach all of the surfaces which it is desired to clean, as hereinafter to be described, I have shown pairs 10 of distributing

tubes

11, 12. These are preferably clamped together in close parallel arrangement, as shown'in Figures 5 and 6, the clamps being indicated by reference character 13. Steam or other suitable fluid under pressure is supplied to these pairs of distributer tubes -l0 from any available source. In the present instance I have shown a pipe connection 15 from a steam header 16 to a main 17 which runs along the base of the furnace. This header 17 is connectedto each

distributer

11, 12 of each pair of parallel distributers 10 by

suitable risers

19, 20 preferably arranged in pairs or otherwise for the purpose of permitting or providing for an independent variation of the relative pressure in the distributers of each palr. The

risers

19, 20 are .each connected to the respective

corresponding distributers

11, 12 by means of

elbows

21, 22 which, as shown, are tapered to ofier as little impediment as possible to the velocity of the steam flowing to the distributers,

and the respective risers are controlled by a valve in each riser, see valve 23 in each riser 19 and valve 24 in each riser 20.

The pairs 10 of

distributers

11, 12 carry the pairs 25 of

corresponding converging nozzles

27, 28. These nozzles as shown, see

Figures 3 and 4, are arranged at 90, but the angle is merely a matter of distribution of the blast and determination of the surface to be swept by the particular pair of nozzles affected and determination of the angle to which the direction of the blast may be varied. The pairs of nozzles 25, see Figure 2, are spaced in accordance with the spacing of the tubes so as to reach and sweep the desired surfaces, the important point being that each tube of each pair of tubes 10 supports one nozzle of each pair of nozzles 25 that the supply of fluid .to each nozzle is separately controlled, so that by changing this pressure the angle of the resultant blast or spray may be sw ng through an angle equal to -or substantially equal to the angle at which the nozzles converge, the term converge being used in the sense that the center lines of the streams from the perspective nozzles intersect or substantially intersect.

The lower and forward group of distributer tubes, see Figure 1, indicated by reference character 42, is, as will be noted, so located that it is subject to almost the maximum heat of the furnace. VVherefore'it is found necessary to jacket this group of tubes in order to protect and preserve it from burning. This jacket is indicated in a general way by reference character 43. Water is supplied to the jacket from the mud drum 44 by way of a pipe connection 45 and led back to the boiler from the jacket by a'pipe connection 46. This jacketed unit or group is illustrated in detail in Figures 9 and 10. The same consists of two pipes 47 of almost twice the diameter of the

distributer pipes

11, 12. These are connected at their remote ends by a suitable fitting 48 having plugs 49 which may be utilized in the insertion or removal of the steam pipes or otherwise. At the nearend, as seen in Figure 1, and at the left in Figure 9, these pipes are connected by a special fitting 50 having a central partition 51 to separate the upper and lower parts of'the jacket to cause the water to circulate along the length'of the pipes. It is also tapped at the bottom 52 .for. connection to the water supply pipe 45 and at the top at 58 for connection to t-he'return pipe 46. This fitting is also shown as having openings opposite the ends of the distributer pipes indicated by reference character 54, the same being'closed by any suitable means 55. The

steam risers

19,20 are connected to the

steam distributer pipes

11, 12 by means of corresponding pipe connections 56, 57 which pass through this fitting as indicated, being suitably connected to the steam pipe by

elbows

58, 59 inside the fitting 50. The openings which admit these pipes to the fitting 50 may have the necessary fit or be otherwise suitably packed as indicated at 60. I

The group of distributer tubes, or as many of them as desired, may be provided with a pilot or indicator nozzle 65 outside thefurnace in plain view of the operator, and each being connected toboth the

corresponding elbows

21, 22 by suitable fittings as indicated, the pilot or indicator nozzle having converging nozzle openings 66, 6 7 at the same angle as those within the boiler carried by the corresponding distributer tubes but preferably of less capacity. The object of this is to indicate to the operator the direction taken by the steam jets as they are varied in the use of the apparatus.

In Figure 7 I have shown a modified form of the invention in which

distributers

31, 32, 33 are arranged in groups 35 of three distributers in a group, and the nozzles are correspondingly arranged in groups of three including a

nozzle

36, 37 38 of each group carried by each

corresponding pipe

31, 32, 33 so that each group of nozzles is composed of three converging nozzles, and the direction of the blast may be thus universally controlled instead of being confined in its direction to a single plane as in the instance of nozzles arranged in pairs. The nozzles shown in Figure 7 are intended to converge toward a single point indicated by 40 in this figure.

As already pointed out, the distributer tubes are arranged in

groups

10 and 35 of two substantially

parallel tubes

11, 12 or three substantially

parallel tubes

31, 32, 33, or the desired number, and the nozzles carried by each such group of tubes are arranged in a series of groups or sets. Each nozzle of each set, to be most effective in accordance with the invention, should be separately fed or otherwise arranged so that the pressure of this nozzle may be controlled independently of the other nozzles of the same set. Therefore the number of distributer tubes in a group is logically made to equal the number of nozzles in each group or set fed by the tubes without regard to the number of sets, the object being to provide the necessary number of groups of converging nozzles and means for supplying fluid under pressure to each nozzle, and means for controlling the pressure at some of the nozzles of each of several of the groups independently of the other nozzles of the group, or more particularly, of varying the relative velocity and pressure of the jet from the respective converging nozzles composing any group. Preferably all the nozzles of the apparatus are so arranged in the desired number of groups and the nozzles in the groups are all so relatively controlled.

The operation. of the device will be clearly apparent from the preamble taken with the description and the drawings. Briefly considered; any suitable fluid under pressure,

iently available iniboiler installations, is

supplied to the main 15 from a convenient j source as the steam header 16. This supply, being controlled by

valves

23, 24 in the .re-

spective pairs of

distrubuter tubes

11, 12, is sowmanipulated as to change the relative pressure .at the nozzles composing eachor any group or pair, and hence the relative velocity of the respective jets composing the combined jet from each group of two or three or more converging nozzles so that the combined jet fro-1n each such group is swung through an are or cone limitedby the angle at which the nozzles converge, causing each such combined jet to sweep a corresponding area of heating surface.

I have thus described specifically and in detail an apparatus embodying my invention in order that its nature and the manner of operating it may be clearly understood; however, the specific terms herein are used in the descriptive rather than in the limiting sense, the scope of the invention being defined in the claims.

What I claim and desire to secure by Letters Patent is:

1. In a soot blowing or similar apparatus, means for directing and varying the direction of a fluid jet consisting of a plurality of converging nozzles, means for supplying fluid under pressure to each nozzle, and means for varying the relation which the pressure and velocity of the supply of fluid to one of said converging nozzles bears to the pressure and velocity of the supply to another of said nozzles.

2. In a soot blowing or similar apparatus, means for directing .and controlling the direction of a fluid jet consisting of a plurality of converging nozzles, the jets from which meet and unite to form a single jet, and means for varying the relative pressure and velocity of the supply to the respective nozzles.

3. In a soot blowing apparatus, a plurality of sets of converging nozzles directed at the heating surface of a boiler, means for supplying fluid under pressure to each of the nozzles of each set, having a single jet for each set, and means for controlling the supply of fluid to one nozzle of each set and varying the pressure and velocity of said supply relatively to the pressure and velocity of the supply to another nozzle of each set.

4:. In combination with a boiler, a soot blower consisting of a plurality of sets of nozzles, the nozzlesv of each set converging to form a single jet directed at the heating surface, separate means for supplying fluid under pressure toeach of a plurality of nozzles of each set, and means for varying the relation borne by the supply to part of the nozzles in each of the sets to the supply to to engage difierent and varying areas of the heating surface.

5. A soot blower consisting of a nuniber or units, each unit comprising a plurality of converging nozzles, means for supplying fluid under pressure to each said nozzle, and means for varying the relation borne bv the supply to part of the nozzles in each 1 unit to the supply to the remainder of the nozzles in said unitsr Signed by .me at Baltimore, Maryland, thisfith. day'of September, 1919. T

PHILIP W. DALRYMPLE.

Witnesses: v

EMMA AHLSLEGER, EMMA l/VEHMEYER;