US1045248A - Superheater-boiler. - Google Patents

Description

J E. BELL y SUPERHEATER BOILER. l urmonlou rILnn un a1, 190e. nmmwsn un. 27, 1901. 1,045,248

1 www ,n 6 i wm Nm dS e2 b m a P J'. E. BELL. SUPBRHEATBB BOILBR.

APPLICATION FILED HAY 31; 1906'. BENEWBD HAB. 2'?, 1907.

2 SHEETS-SHEET 2.

wn'nEssEs, A mvENTon UNITED STATES Parnnr ormoni.

OF YORK, N. Y., A CORPORATION OF NEW JERSEY.

Specification of Letters Patent.

Patented Nov. 26, 1912.

Application filed May 31, 1906, Serial No. 319,459. Renewed March 27, 1907. Serial No. 364,866.

.To all whom it may concern:

Be it known that I, JOHN E. BELL, of New York, in the county and State of New York, have'invented a new and useful Improvement in Superheater-Boilers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is asectional side elevation of a uperheater boiler constructedin accordance with my invention; and Fig. 2 is a similar view, showing diagrammatically a modified arrangement of the-superheater.

My invention relates to the class of superheater boilers, particularly those wherein thefurnace is. in front of vertically-extending watertubes and.' is provided with an 'arch orl dome.

The objectjof the invention is to provide 'for attaining a high degree of superheat Awhile suitably protecting the superheater.

' -It is :also designed to provide a super- Y' heater which is located so as to be readily .25'. I

accessible for inspectiongand repair:

Referring to Fig-1 the drawings, .2, 3 and 7represent upper transverse steam and Water drums connected vertically .inclined tubes 5, 6 and 7 to the lower transverse mud *drum 8. 9'is a furnaceethe 'gases being d1- ff'rected anion the tubes of the front bank by -thenbaille'-10, prefeiably';having a shelf 11,

and'thence descending, among 4the second bank-of tubes, in whiclrthey are retained by* V the baliielQ. The gases then risejthrough the last bank of ytubes and pass to the outlet port 13. shown as consist-ing of boxes 14, 15 embedded; inthe front 'wall 'and connected by a 4G located above the furnace arch 17 and comtransverse series of 'superheater tubes 16, is

,f bais 1.8 may be provided in any desirable `number, these bars ventending among the tlilies.. of the front" bank above the superhmter and causing the rising gases to delQuottoward the front wall so as to more @aan promptly regulate the amount of superheatimparted to the steam. In this form 19 "repres'entsjpalV` supply-pipe for steam which leads from-the middle upper drum, whileQO is the 4super-heater outlet pipe. I have shown The superheater which I have the front upper drums as connected bv water tubes 21, and the front and rear water drums as connected to the middle upper drum by steam tubes E22 and Q3.

In Fig. Q I show a form similar toV that of Fig. 1, except that the superhcater boxes 14a and 15a are embedded in the side wall of the bcilersetting, the superheater tubes 16a extending transversely across the boiler setting. In this case parts similar to those of Fig. 1 are marked with similar numerals with the letter a applied.

The advantages of my invention result' from the high degree of superheat. obtained, while the arch protects the superheater from burning out and baiiies the gases into the front bank of water tubes. The amount of superheat may'be regulated by regulating the battling which directs the gases into the superheater. l The superheater in this position Will-"also receive considerable heat by radiation.y This location of the superheater permits easy. inspection and repair, and is desirable for this reason.

Instead of extending one set of tubes across the width of the boiler, I may employ boxes in both side walls with two sets of U -shaped tubes extending to the central front part of the boiler; multiple mud drums may used, the'tubes may be exactly vertical or inclined, and many other changes may be made without departing from my invention.

I claim:

t A`water. tubel boiler having a heated space defined by a wall of the setting, the arch over the combustion chamber and a set ofwater tubes, and a superheater located in saidv spa-ce and disposed in substantial par- JOHN E. BELL, OF NEW YORK, N. Y., ASSIGNOR TIO THE BABCOCK 8: WILCOX COMPANY, y

allelism with the furnace top; substantially substantial lparallelism with the top of the A furnace, and a baiiie to direct the products of#` combustion from the furnacef upwardly among the water tubesand the superheater tubes; substantially ass-described;

vspace defined by the wall of :the setting` the 11o top of the combustion chamber andaset of Water tubes, a superheater havin horizontal.

upwardly among the water tubes and to the A superheater, and baffle shelves among the tubes disposed to.v control the amount of products of combustion directed to the superheater.

4. A Waterltube boiler 4having steam and water drums connected by banks of tubes'to a transverse mud drum or' drums, a furnace at the lower end of the front bank, an arch and out of the direct path of the over saidfurnace, a. plurality of headers in4 the wsu ofthe boiler setting immediately 15 abovel the arch, anda plurality of horizontal U-shaped superheater tubes extending from the headers over the top'of the furnace arch,

ses from the furnace; substantially asdescrlbed.

In testimony whereof, I have hereuntoset my hand. 1

JOHN E. BELL.I Witnesses:

CHARLES B. KNUDsoN, GEORGE H. SONNEBORN.

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