US279247A - Apparatus for reheating exhaust-steam - Google Patents

Description

2 Sheets-Sheet 1.

(No ModeL) V L. HUSSEY.

APPARATUS FOR REHEATING EXHAUST STEAM. No. 279,247. Patented June 12,1883.

if ITWB TQR ATTORNEY (No Model.) 2 Sheets-Sheet 2.

V 4 L. HUSSBY. APPARATUS FOR REHEATING EXHAUST STEAM. No. 279,247.

Patented June 12,1883.

R 0 T N E V N Unirnn STATES PArEnr OFFICE.- J

. LEVI HUSSEY, or New YORK, N. Y., ASSIG-NOR or ONE-HALF roenonen w. DONALDSON, or ORANFORD, NEW JERSEY.

APPARATUS FOR REH EATING EXHAUST STEAM;

SPECIFICATION forming part of Letters Patent No. 279,247, dated June 12, 1883,- Application filed February 16, 1883. (Nommleh) To all whom it may concern Be it known that], LEVI HUSSEY, of the city, county, and State of New York,..have invented certain new and useful Improvements in Apparatus for Reheating Exhaust-Steam and Superheating Live Steam, of which the following is a specification.

This invention relates to an improved appa ratus for reheating exhaust-steam, and also for using the same apparatus for the superheating of live steam whenever the steam-engine supplying the exhaust-steam is .not ij'unning, so that thereby a uniform degree of. heat can be supplied to the drying-rooms, or. for other purposes. g

The invention consists in the combination, with a steam-boiler, of an cxhauststeanrreheating or live steam superheating device located above the boiler within aflne through which the products of combustion pass, said device being connected with a valved exhaustpipe of the steam-engine, and with a valved live-steam pipe from the steam-boiler, whereby it may be readily converted from an exhaust-steam reheater to a live-steam superheater, and with a valved steam-conducting pipe which conveys the reheated exhauststeam or the superheated live steam to the radiators or. other appliances for utilizing the same.

In the accompanying drawings, which illustrate my invention, Figures 1 and 2 represent vertical longitudinal sections of my improved apparatus for reheating exhaust-steam and superheating live steam, and Fig. 3 is a vertical transverse section through the system of V heating-pipes shown in Fig. 2.

Similar letters of reference indicate corre sponding parts.

Referring to the drawings, A represents a steam-boiler of any approved construction, and B the brick-work by which the same is supported. The products of combustion are conducted from the furnace 0 along the bot tom and sides of the boiler to the rear end of the same, thence forward through the tubular flues of the boiler to a vertical flue, G, at the front end thereof, thence into a top chamber, D, containing reheating-pipes E, supported therein in any suitable manner, and thence through the valved 'llue H or the valved flue H to the chimney. A main exhaust-pipe,'F, leading from the steam-engine, provided with a valve, 5', connects with the radiator, feed water heaters, or other devices for utilizing the exhaust-steam. F, connects the main exhaust-pipe below the valve 8 with the lower end of the reheatingpipes E, and a pipe, I, connects the upper end of said pipes with said main exhaust-pipe above said valve 8. The branch exhaustpipe is provided with a valve, f, and the pipe I is provided with a valve, 2, and with a valved branch pipe, J, which may lead directly to a radiator or other exhaust-steam-utilizing device. By closing the valve .9 of the main exhaust-pipe and opening the valve f of the branch exhaustspipe the exhaust-steam will pass to and through the reheating-pipes, where it will become reheated, and thence through the pipe I back to the main exhaust-pipe or other pipe connected with the radiators, feedwater heaters,or other device for utilizing the ..'aid steam.

vWhen the brickwork surrounding the system of pipes E or chamber 3 is properly heated by the fire of the furnace G, the heat absorbed by the brick walls is radiated and employed in connection with the direct heat of the products of combustion that are drawn around the system of pipes E, or through the chamber E, for reheating the exhaust-steam to a considerably higher temperature, the same being then conducted off through a valved pipe, I, connected to the upper end of the heating-pipes E orchamber E, for being used for heating up drying-rooms, and for other purposes. The pipe I, that conducts off the re heated steam, is provided with outlet-pipe K,

having a pressure-relief valve, K, so as to regulate the pressure in the system of heatingpipes and admit automatically the escape of steam of higher pressure.

Instead of locating the flue or chamber D immediately above the boiler,the vertical flue G may be extended, and instead of having a single flue, D, through which the gaseous products of combustion pass, andaseries of small, pipes, E, through which the exhaust-steam passes, there may be a series of small fines,

A branch exhaust-pipe,

D, inclosed in a chamber, E, as shown in Figs. 2 and 3, in which case the products of combustion may passfrom the vertical flue G to the exhaust-flue through the small fines D, while the exhauststeam passes through said chamber in contact with the outside of said pipes.

The system of heating-pipes E is further connected by a valved pipe, g, with adome, A, or with any other suitable part of the steam-boiler A, so that live steam may be made to pass through the system of heatingpipes E, whenever the engine is stopped,either during the day or at night. In this case the stop coekf of the exhaust-pipe F is closed,and the valve of the live-steam pipe 9 is opened. The system. of heatingpipes E acts then as a superheater of the live steam, and admits the lowering of the steam-pressure in the boiler to a very low point-say five poundsthus insuring greater safety, and a considerably smaller consumption of fuel, as the steam is super heated in passing through the system of pipes, without extra cost, by the heat of the products of combustion and the heat radiated by the brick walls. In this manner all the advantages obtained by carryingsteam at a high pressure are secured for heating purposes with out any danger, or without any extra expense for fuel, simply by the heat that would otherwise pass ofi' through the chimney.

By the apparatus described, drying-rooms or other apparatus requiring heat maybe heated during the day by means of the reheated exhaust-steam, to which a high temheated exhaust steam.

perature is imparted in the system of heatingpipes, through which the same is conducted, while at night live steam of alow temperature is superheated in its passage through the heat ing-pipes without any extra expenditure of fuel, and. applied for use in place of the re- The exhaust steam from the engine, as well as the heat of the products of combustion, which would otherwise pass off through the chimney, are thus utilized for economical and effective use in the arts, and thereby a considerable saving in fuel is obtained.

Having thus described my invention, I claim as new and desire to secure by Letters Patent The combination, with a steam-boiler, of a vertical flue at one end thereof, a fine or fines above the boiler, an exhaust-steam-reheating device'within or around said flue or fines, a valved"exhaust steam. pipe, a pipe connecting said exhaust-steam pipe with the reheating device,-a valved live-steam pipe connecting the reheating device with the steanrbeiler, and a pipe that conducts the reheated exhaust-steam or the superheated live steam from said heat-

Images