US1727177A

US1727177A - Superheater boiler

Info

Publication number: US1727177A
Application number: US71043A
Authority: US
Inventors: Prentice John
Original assignee: Babcock and Wilcox Co
Current assignee: Babcock and Wilcox Co
Priority date: 1925-11-24
Filing date: 1925-11-24
Publication date: 1929-09-03
Anticipated expiration: 1946-09-03

Description

the -usual manner."

Patented Sept. 3, 1929..-

JOHN rRnNTrenor BAYONNE; NEvv'-RSEY, AssieNoR To THE BABcoeK Np cox CoM-rem; or BAYONNE, Njewfmnsnmn conroRA'rIoN o F NEWJERSEY.

.sUrnRnEA'rnR- BoIL-ER. I

form-With a.' superheater embodying my in:

vent/ion; 251s' anfenlarged'vlew of the' ends of one of the .headers-shown@ Fig. '1,

and Eig. 3 isla perspective; lookng'n the direction of tl'ieia'rroivs 3 3 in 4ig, le'. Like referencesindicate like parts thr01igh-- out the-drawings-VA `are -spaced 4apart tprovide'a 'sperheater chamber and: Achamberis a U-tube.'

s uperheater having an inlet header '.14 and header; 15 extending a "cQs s' th space and-'througli the side wallso'f the boiler settinv', the headersf- 14,and V15 "being-'conmexnbe'rs 17- resting on thejtiibes 1'()v and with of the headerlf Will'be carried-CQ the-head- `-18 w ihlisfattachedtothelover-endsgor'f'- brine :nietes 19,- 20, eeehjextendipg"throughj 'an oblique aisle in thebank 11"'andwi th re.

i "the bank'lll 'so thesuperheater h e'aderl'tisthstransmitted 4- 0n' the tubesof the' columns of refractory material 21 eac-brest- 'cesse's .in `its edge snrrounding. the-'tubes' ef o'b supported thereby.'

Aswill be best` seen in 3',-`the weight-,lof

to `the Water tubesO the bank 11, i

bank 10 "are picrs'or ing on` alv plate.. 22 held'against long itidil-al 'movement `21-being coveredby a plate 24 on which rests severaProWs:of'tlieftubes 16 may'bevconnected by plates lbfto maintain theseveral .In the illustrative;arrangement, the boiler 1Q fhoriaontally i-nclined-- water-tubes'andan upper ba' k 11 'off water; -tubes,- .tl iese banks being connected to 11p- -'The` banks '.10 and The header' I5 isfsuppbrtedfon supporting' .thel'ower 'ends'of theiijfeet contactV With Atheheaders 13, so that' the'hoiizntal thrust- 14 @dat is a sus:

ezcdnecte at thetjpstpdbotwm-s resineorder'. tri-permit" the sppefhfr to be maw able ivithfthejbpiler ,parts wit out producing anyilinduefstram onthersus ion members orpenf the-silperheater'fparts.

amoiintoffstrain enI the suspensionsinenibers -pennected to the :beller arts. 'loj dv'ereome while'schadditional pbi'rit of support may ,be provided, nevertheless 'the A-sliperheater` bil. In lthe illustrative embodiment, the setting sidewall 29 .hasan enlarged"opening-13D@ 'of supports32 covered 'by a, channel-'section coverplate 33 tl'ir'oilgh' which. extends the fiiredlbeanif ends of a.Urshapedhangergthe-apprende of the hanger being provided withj a ji1s'ti i rg=.l

nlits '35 "and" vlvashers the latter. resting A onf coiled springs 37, the lower-:ends of. which may betension to-give a ydesiredam'ount header 14 tendsitozniove lip b rd'owfllv With-the yielding; resilient character '.ejthe spring suspensin whiehlprovideg' The. hores the' "veri .piatea {mittig-h 14 to '-me've'horzontallyjwhen' the; boiler supporting and yet yield It will'be understood that the arrangeL ment shownin Fig. to the outlet header and may also be providedvat the oposite'ends of the headers.

rdinarily, however,where the piping 'can be arranged so as to be substantially selfing enough permit movement of the header 15, the-spring sus-l the form shown,

suc spring suspension 1s. shown only for theinlet header 14- and not for. the outlet header 15.

It will be understood that the arrangement which I have shown is merely illustrative and that the embodiment of mv inven- For instance,

vided banks of is located and it may be applied to such suspace between the ban the headers and the boiler,`and other fixed' supports between the tub perheaters irrespective of whether the tubes are longitudinal or crosswise of thei water tubes. l

I claim:

v1. A steam boiler having banks of water tubes connected to water chambers' with a space between the banks, heater having a tubular heating surface -in said space, and supports for the superhe'ater, some of said supports being connected to the boiler and others of said connected Vresilientlyto the boiler setting. 2.v A steam boiler having banks of water es connected to water chambers with a space between the banks, a

ing inlet and outlettheaders connected bv tubes, with at least a'portion of the Atubes in said space, a fixed member, resilient supports between the fixed member and the superheater, and fixed connections between-the superheater and the'boilerl 3. A steam boiler having banks of 'water vtu es connected to water chambers with'a space between the banks, a superheaterehaving inlet and outlet headers connected by tubes, with atleast a portion of the tubes in said space, 'a fixed member, resilient sup-v ports between the fixed member and the superhe'ater headers, and fixed supportsbetween the boiler and the superheater tubes.

4. .A steam boiler having banks of water tubes connected to water chambers with a a super-heater havmg` inlet and outlet headers connected by tubes, with at least a portion of the tubes 1 in said space, a fixed member, yieldingvsupd ports between the fixed member and the superheater headers, fixed supports between superheater tubes and O1 el'.

n a steam boiler, of horizontally theb l b k an upper and a lower and an outlet header extending space atright `angles to the bo 2 may be applied also said headers, and a ch asuperheatera tubular supersupports being' superheater av- .with the legs of the U llned water tubes: tu spaced apart, a superheater having an inlet h through said tubes within' said space and connecting said headers, a fixed member at oneend of one of yielding member between said end and said fixed member to support said end at least in part.

-6. In a k of horizontally inclined water tubes spaced apart, a superheater having an inlet and an outlet header extending through said space at right angles to the boiler tubes, tu

the outlet end of yielding member fixed member to end and the pipa fixed member at said outlet header, and a etween said end and said support at. least in part said ing :connected thereto.

spaced apart, a. superheater having an inlet and an outlet header extending through said space at rlght angles to the boiler tubes, -tubes within said space and connecting said headers, a fixed member outside the boiler setting and above an end of one of said steam boiler, an upper and a lower s within said space and connecting said headers,

' eaders, a U-shaped hanger around said endAv said fixed member, a spring around eachleg above said fixed member,and means on each eg'to bear. against the'end space atright angles to theboilertubes.

within said space and connecting said hlfeaders,- supports between said headers and anks Aef water tubes,

said

extending through of the spring,-`

whereby the greater part of the weight of the superheater is carriedon said water tubes,` a fixedmember at one end of one of said headers, and a yielding member between said fixed mem; ber and said end to support said end at least in part.

11. In a steam boiler, an upper and a lower' ba'nk ofhorizontally inclined water tubes spaced apart, a superheater having an inlet and an outlet header extending through said space at right angles to the boiler tubes tubes within said space and -connecting said headers, onel of said headers being 'at a level higher' than the'vlevel o f .the other of saidV headers, supports between the lower header and the lower bank of waterl tubes, suspension` devices between` the upper bank of water tubes andthe upper header, affixed member at one endof one of said headers, and a 1ieldi'ng member between said fixed member and said, end to support said end -at least in part. j

l2. In a steam boiler, aupper and a lower bank of horizontally inclined water tubes spaced apart, a superheater having an inlet and an outlet header extending through said space at right angles to-the boiler tubes, one

of said headers being at .right angles tothe boiler tubes, one of said headers being at a level higher than the level of the other header, U-tubes in said space and extending in the same general direction as the water tubes and connecting s'aid headers, supports between the lower header and the lower bank of water tubes and holding said lower header in substantially fixed relation to said lower bank, suspension devices between the upper bank and the upper header and holding said upper header in substantially fixed relation to said upper bank, a fixed member adjacent one end of one of said headers, and a. yield- I ing member between said end and said fixed member arranged to support said end at least tively to' said fixed member.

13. In a steam boiler and its setting, a'

superheater, means associated with boiler parts for' supporting said superheater in subf stantally fixed relation thereto, and other nin part and to'permit movement thereof relameans associated vwith the 'setting for sup porting said superheater inv resilient relation to said setting.

14. In al steam boilerand its setting, said boiler comprising water tubes, a superheater` ,he'ater tubes. means for. supporting both the headers and the tubes of the superheater from the boiler .tubesthe headers of the superheater extending 'through openings in the setting, fixedmembers located outside ofthe setting,`4 and means for yieldinglysupporting-.theendsfof said headers' by said' fixed `members@ i"....--'-

16. 'In a'steam boiler comprising water tubes and its setting," a superheater, means connected to boiler'tubes for supporting said superheater atcertain pointsl in substantially fixed relation to the tubes', and other means for supporting said superheater at another point in resilient -relation to said setting.

A JOHN'PRENTICE.