US1818390A - Boiler - Google Patents

Description

. Aug. ll-, 1931.

c. w. GORDON BOILER 2 Sheets-Sheet 1 Filed Nov. 19, 1929 asEQEIEEEE2555 EEE IQIEQCE32:22::\

ar/ ub'rdaw ATTORNEY.

Aug. 11, 1931.

C. W. GORDON BOILER I 2 Sheets-Sheet 2 v 20 QQQQ @QQ i Filed Nov. '19 1929 c I i T'Q Q- 7 I 3 INVENTOR. V

. AiTO'RNEY.

Patented Aug. 11, 1931 UNITED STATES PATENT OFFICE I CHARLES GORDON, OF IE LEASANTVILLE, NEW YORK, ASSIGIIOR TO THE SUPER- HEATER COMPANY, 01 JN'IF'JW- YORK, N. Y.

BOILER Application filed November 1 9, 1929. Serial No. 408,210.

This invention relates to boilers having two banks of what are usually referred to as horizontal water tubes and provides an improved form of baiiling 'forsuch boilers.

The invention is illustrated in the drawings filed herewith. In these drawings Fig. 1 IS a vertical longitudinal section of such a boiler with my invention installed, only so much of the boiler being shown as is necessary to make the invention clear; Fig. 2 is an enlarged section on line 2-2 of Fig. 1, and Fig. 3 is a section on line 3-3 of Fig. 2.

The boiler, as stated above, comprises two bankso'f tubes 1 and 2. These tubes are in-' clined at the usual angle to the horizontal,

but in the specification and claims hereto they the headers 4a and/lb are connected to each otherbymeansof the nipples 4c. The upper ends of the headers 3a are connected by means of a series of tubes 5 to the steam and water .drum 6. v The latter is connected with the upper ends of the headers 4a by means of the nipples '7. The boiler is enclosed in the usual housing 8 and under the boiler there is located the furnace 9. The gases are allowed to escape from the-boiler housing through the stack connection 10.

In the .f0rward pbrtion-of the space tween the two banks is located the superheater 12. This superheater is made of tubular elements whose ends are connected to the two headers 13 andlt; The header 13 is connected to the steam drum 6 by means of the pipe 15. 14 is the outlet header and suitable i connections (not shown) are made from it to carry the steam to the point of consumption.

It is practically necessary to bafiie a boiler of this type so as to give the gases a tortuous path of travel from the furnace to the stack connection. Such baffling includes in this case, as in prior cases, a horizontal baflle 6 extending from the rear end of the boiler to a point approximately at the middle of the housing; a second bafile 17 rising vertically upward from the front end of the bafiie 16 across the upper bank of tubes and terminating short of the roof of the housln and a. third baiile 18 extending downward rom a point in the roof in front of the stack connection between baffle 17 and the rearof the housing and terminating at a point some distance above the bailie 16.

My invention resides in the location and manner of supporting bafiie 16.

Heretofore this bafile has usually been located on top of the lower'bank, or some- I where in the lower bank. In someinstances it has been placed in the lower portion of the upper bank, in which case the superheater can,'and usually does, extend throughthe entire space from front to back between the two banks. Each of these arrangements has its advantages. When the former one is used, i. e., the arrangement with the baflie in the lower bank, some diiiiculties are encountered, particularly if the coal used is of low grade with ash of low fusion temperature. These difiiculties are removed by my invention.

I provide a number of hanger rods 19 which extend at suitable intervals through the upper bank of tubes and which are supported in position by the'plates 20, through which they extend and which rest on the top row at tubes of the upper bank, and nuts 21 screwed-on the upper ends of the rods and re'stingon these plates. The lower ends of these rods carry the transversely extending bars 22. Hung from these bars 22 is a series of T-sha'ped bars 23 which are suspended in a'position parallel to the water tubes. On these T bars are suspended the bricks 24 which make up a bafiie. The bricks have T-shaped slots and are slipped on and-along the bars into position.

The bafile can by the means described be hung at any desired level between the two banks. Fig. 1 illustrates what I regard as an advantageous position. The entire lower bank of tubes is open for the passage of the l on ' gases from the furnace, so that their velocity through this bank is low, this being very Y eflective for preventing slag 'ing. The same beneficial efiect is therefore secured as far as absence of slagglng is concerned, as if the bafile were at the bottom of the upper bank and yet the benefits of a high gas velocityover the superhea'ter surface is retained.

The manner of supporting the rods 19 from the upper bank is, only illustrative. Other means may be used, such for example as those shown for supporting the header in applica-. tion #325,258 filed on December 11, 1928 by J. F. Kavanah. Other variations can obviously also made in my invention without departing from it'sspirit.

V I claim:

verted T-s haped cross-section, and firebricks contacting with each other to form a con-- tinuous bafile, said bricks being slotted so as to slip on and hang from said second bars.

CHARLES W. GORDON.

1. In a boiler having two vertically spaced i banks of horizontal tubesythe combination with said banks, of a bafile between and parallel to them and spaced from both .of

them, and supports for said bafli'e hungfro'ind tubes in the upper bank. '2. In a boiler having two vertically spaced banks of,horizontal tubes, the combination with said banks. of a baflle between and parallel to them and spaced from both of them,

allel to them and spaced from both of them,

the bafle being nearer to the lower bank than to the upper, and supports for said bafiie, said supports including rods'engaging members resting on tubes of the upper bank.

41 In a boiler, in combination, a bank of horizontal water tubes, a plurality of bars transverse to the water tubes and below them,

means supporting said bars and engaging and supported by some of the water tubes, an alined series of bars parallel to the water tubes andsuspended from the first-named plates'engaged bars, and fire-resisting blocks suspended E from said second-named bars contacting with each other and forming a continuous batlle. s

5. The combination set forth in claim 4, said second named bars having longitudinal horizontal opposite flanges along their lower edges, and said blocks being suitably slotted to slip on and hang from said flanges.

6. In a boiler, the combination of two spaced banks of horizontal tubes, rods extending through the upper bank, means to support saidrods, said means engaging the top tubes of the upper bank, bars transverse to a the water tubes suspended from the rods 'in' the interrbank space, a set of alined bars arallel to the tubes suspended from said rstnamed bars, said second bars having an in

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