US1789427A - Boiler header - Google Patents

Description

P. R. DELLING ET AL Jan. 20, 1931.

. BOILER HEADER Filed Aug. 7, 1926 Patented Jan. 20, 1931 warren S A-res PAUL R. DELLING, or HAIDDON TOWNSHIP, CAMDEN oo 'rr, AND HANS w. LINDE- MANN, or connmsswoon, NEW JnnsE ,-AssIGNons--To DELLING Morons co vrrANY, A CORPORATION or NEW JERSEY! r BOILER Khan-En i V I r Application filed August 7, meifseiarm;15 ,894;

The invention relates to improvements in' 7' boiler headers, especially top headers, and

comprises a single integral casting, instead of two drop forgings welded together, as

has hitherto been the practice in such const-ruction. By constructing'the header of a single integralcasting, it is possible to provide deep reinforcing ribs or webs and integral stays having reinforcing ribs or webs at the juncture between the ends of the stays and the top and bottom walls of the header.

By these reinforcing elements it is possible [to depart from the semi-circular formation of the header side walls, heretofore deemed necessary to resist the strains incidentthereto, and thus flatten said side walls in ,order to make the header higher without the necessity of broadening the body of the header. Stays are also provided within the header body to afford means for anchoring the end cover plates in position.- Suitable splasher 'baliles or ribs are also provided to direct the means for effecting the invention;

Fig. 1 is a longitudinal verticalsection on line 1, 1 of Fig. 2. y .Fig. 2 is a top plan view,

Fig. 3 is a vertical cross-section on line 3,

' 3 of Fig. 2. r 7

, Fig. 4 is a vertical section on line 4, 4 of Fig. 2, on areduced'scale and with the end plate removed.

of the assembled boiler, the outercasing being in section. V

' Similar numerals refer to similar parts throughout the several views.

The top header, as shown in the drawings,

comprises the-integral steel casting. 9, having the flat top wall 10,'the flat bottom wall 11, .and the curved side w allsl2. Thej'said top andbottoifi -walls are connected by' the integrally cast stays 13 and 14, having radiatin'g reinforcing ribs 15 attheir juncture withfsaid top and bottom walls. ZThe'rec tangular stays 161 and 117', provided [at the ends of the header are'cast integralwith the said top and bottom walls, and"also v with a part offthe end wallsi'ofjthehefader. The 'curved'side walls 12"a'rejprovided with the reinforcing ribs "or web'sf 18' cast integral l therewith. Integrally cast splasher bafliles o r"webs '19" project downwardly 7 from the top wall" 10', to direct the water thattends to surge upwardly against the curved sides 12, downwardly away "from the dry steam pipes 20', which extend horizontally close to theiunder side of-tlie top'wall 10. "The bottom wall 11 is provided with the tapered openings 21, into which theendsjofthe wa- The end cover plates 26 *are' provided to Q close-the end openings27 in the header, and

anchored to" the rectangular staysj161and- 26 are"recessed, as at 28],;Figl 5, and the stays fl6i'and I '17 extend in part to the outer surfac'eof the header wall int'othe recess'28,

and ar'e partly recessed as atj29 to receive a partbfthe plate 26, so that an interlocking 5 engagement is. formed between the "plates it and. .stays'. Tlifadj acentj margins of the plates- -26 and surrounding walls of the,

v header are welded together. r V Fig. is an end elevation, P rtly in The header body'or Castmg 913 also pro? broken section and on a reduced scale.

7 V Fig. 6 is anelevation, on a reduced scale,

vided with. the outwardly extending .flanges waterinlet pipe 32. This water inlet pipe 32 is shown passing through one of the plugs 24, and extending downwardly to deliver' into one of the tubes 22 most remote from the grate. This inlet or, feed water pipe'32 is provided with the usual check valve 33 and a 30 for connection-to the surrounding casing V ter tubes 22 are expanded'as shown. The

{it will lbelnotecl that parts? eat age :5?"

is provided near the top of the header chamher with one or more minute holes 34:. In case the check valve 33 should leak, these holes 34 will admit a small quantity of steam to pipe 32, which will practically prevent'the discharge of water from' the boiler when pressure in feed-water pipe is reduced below boiler pressure;

Itshould also be noted that; the dry. steam pipes are provided with a series of small steam apertures 35; these apertures or per forations extend along the greater partiofithe I .7 y

length of said pipes 20, which deliver theidry f 2. Aheader fo'rjtubular steam to the engine.

What we clai-m is V Y 1. "A headerfor tubular steam generators, comprising a cast metal chamberedbody hava *fiae oaom wall provided with tapered openings for the water tubes," and a topwall provided with threaded registering openings for receiving the expanding tool, threaded plugsforfelosingf aid registering openings l after the expanding operation, and remfore- "i'ng stays having radiatingfweb formations atgthe'ir en'ds'cafs't integral with said stays and top and bottom Walls H I v p I H H steam generators, Comprising a cast metalehambered body havingouitwardly convex sidewalls, a steam d1spha'rgepi pe positioned within the chambered bodyclfos'ely' adjaoeiit the'top wall thereof and a curtain like battle cast integral, with the chambered bodyadjaent the unetio'n' of the top and sidewalls andibet we'en the side wall and the said pipe.

3. .Aisteam boiler.headetooinp'risinga cast infetal chambered body having outwardly conjveii side walls and splash bafiles' positioned atthe'junetion of the top with the side walls and'c'a'stintegr'al'therewith. i 4:. A header for steam generators; eonipris- Y ing-zi cast metal chambered body .haViIIgsub- V sta'ntialljrflat top and bottom walls andfout; wardly Convex side walls, parallel webs proj ectinginwardlyirom the side walls'and integralth'erewithand with substantial portions of thetop and'bottoin walls, and stays V iconneeti ngithe middleportions of the top and. bottom walls'having radiating web s at each end integral with said top and bottjom lPAULRLDE LINGi;

HANS W LINDEMA'NNL

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