US269586A - Feed-water heater - Google Patents

Description

(No Model.) 2 Sheets-Shet 1'.

E KENDALL.

FEED WATER HEATER.

No; 269,586. Patented Dec. 26,1882.

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(No Model.) 2 SheetsSheet 2.

. E. KENDALL.

FEED WATER HEATER.

N0. 269,586. Patented D66. 26, 1882.

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EDWARD KENDALL, OF GAMBRIDGEPORT, MASSACHUSETTS.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 269,586, dated December 26, 1882.

Application filed August 30,1882. (No model.)

To all whom it may concern.-

Be it known that I, EDWARD KENDALL, of

Gambridgeport, in the' county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Feed- \Vater Heaters, of which the following, taken in connection with the accompanying drawings, is a specification.

. My invention relates to the construction and arrangement of the heater-pipes and the means of controlling the flow of the water through the same; and it consists in the combination of a series of clusters of small pipes extending across the smoke-flue leading from the boiler to the chimney, and each having a portion of its length bent at right angles to its main portion, and two series of larger pipes located outside of said smoke-flue andeach receivingone end of all of the small pipes in one of the clus ters, as will be more fully described.

It further consists in the combination, with said series of clusters of small pipes and the said series of larger pipes, of a series of cocks or gates, by means of which the flow of water through the several clusters of pipes may be regulated. v

ltfurther consists in the c01nbiuation,with the smoke-flue of a boiler, the series of clusters of small pipes, and the series of larger pipes, of areservoirlocated above the boilers, connected at one end to one end of the circuit of heatingpipes and at the other end to the opposite end of the circuit of the heating-pipes and to the boiler in such a manner that heated water may be supplied to the boiler from said reservoir, or, when not required in the boiler, the water may circulate from said reservoir through the heating-pipes and back to the reservoir.

It further consists in the combination, with a heater composed of a series of clusters of small-pipes and two series of larger pipes, of a reservoir connected therewith and provided with one or more sediment-collecting pockets, pendent deflectors,bridges, and blow-off cocks, as will be hereinafter more fully described in connection with the description of the drawings, and particularly set forth in the claims.

Figure l of the drawings is afront elevation of a pair of boilers with my improved heater and reservoir applied thereto, a portion of the brick wall of the smoke-flue being broken away to show the several clusters of small pipes. Fig. 2 is a plan of the same with the metal covering-plate of the smoke-flue removed and the rear portions of the boilers broken away. Fig. 3 is alongitudinal section-ot'the reservoir, and Fig. 4 is an enlarged elevation of one of the large pipes which connect the clusters of small pipes A and A are two boilers, tobc supplied with water and inclosed in' suitable brick setting, B.

G is a cylindrical tank or reservoir, supported by the brick piers D D in a position above the boilers, and may be located over the front end of the boilers, as shown, or at any other convenient point.

E is aflue through which the hot gases and other products of combustion pass on their way from the boilers to the chimney, and is shown in the drawings as being composed of two brick side walls, E E, auda top and bottom of plate-iron, as indicated by letters a and a, respectively. A series of clusters of small pipes, b I), extend vertically across said flue and through the top and bottom plates thereof, each pipe in every cluster being connected at one end by means of a quarter-turn with a ;low the flue E, as shown.

The pipes F are each connected with one of the pipes G by means of a U-shaped pipe, d,

.and each of the pipes F is in like manner connectedto due of the pipes l. 'The opposite ends of the pipes F and F are connected through the pipes e and f, respectively, to the pipes H and I, as shown in Fig. 1.

The pipes e audfareeach provided with a stop-cock or gate, e or f, and a stop-cock or gate, 9 or h, is inserted in the connecting-pipe between each pair of pipes F G and F G, as

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shown in Figs. 1 and 2. The pipe H communicates by one end with the interior of the reservoir 0 at one end, near its top, and by its other end with the supply-pipe J, and is provided with the stop-cocks orgates dj, and 7:, as shown. The pipe I communicates by one end with the interior'of the reservoir 0 at or near the end thereof, opposite to the pipe H, and by its other end with the supply-pipe J, and is provided with the stop-cocks or gates l and m, as shown.

Branch pipes n and 0 lead from the pipe I to and communicate with the water-spaces of the boilers A and A,respectively, and are provided with the stop-cocks or gates at and 0, respectively, as shown in Fig. 1. The watersupply-pipe J leads to and communicates with a suitable pump or other means of supplying water under pressure. (Not shown.)

The reservoir 0 is provided withoneormore sediment-collecting pockets, 1), each provided with a suitable discharge-pipe, q, and blow-oft cock g, as a means of discharging the sediment that may accumulate in the pockets 1).

One or more deflectors, in the form of pendent partitions r, are arranged directly above the sediment-pockets p, and serve to compel the water discharged into the reservoir through pipe H to takeadownward course at or near the sediment-pockets in order to pass to the other end of the reservoir and be discharged therefrom through the pipe I.

One or more other deflectors, s, in the form of partial bulk-heads, rise from the bottom of the reservoir to a point near the center thereof, and serve to compel the water, after ithas passed beneath the deflector r, to take an up.- ward course again,thus creatinga certain degree of agitation of the water, which, by virtue of the greater weight of the sediment, facilitates the deposit of said sediment in the pocketsp p.

L is a safety-valve mounted upon the reservoir G, to regulate the pressure therein.

The operation of my improved feed-water heater is as follows: If it is desired to charge the reservdir G with hot water, to be used at will for supplying water to the boilers A and A, or if it is desired to keep up the supply of waterin the reservoir, after it has been tilled, to replace that drawn out to feed the boilers, the stop-cocks g and h, the left-hand stop-cock, e, and the right-hand stop-cock,f, are opened, while all the remaining stop-cocks remain closed. It, now, the pump be set in operation, or the water be let into the supply-pipe from any suitable head, the water will be made to circulate through each of the clusters ot'small pipes b I), through the pipes F F G G d, the left-hand pipe, 0, stop-cock, 0, and the pipe H, and be discharged into the reservoir 0, the body of water being subdivided into a large number of small columns each time that it passes across the flue E, where it is exposed to the action of the hotgases passing through said flue, by which means the water is much more effectually heated than it otherwise conldbe. If it is desired to supply water to the boiler A, the stop-cock n is opened, and it it is desired to feed water to the boiler A the cock ois opened. At times when the boilers are full, and as a consequence no water is needed to be supplied thereto, the cooks n and 0 are closed and the cocks l, m, c, and f are opened, and the supplyfrom the pum p or other head is shut off, when a circulation of water will be keptup through the heater by the cooler water in the bottom of the reservoir 0 descending through the. pipe I, passing through the several clusters of small tubes in the flue E and through a portion of the pipe H, and being discharged thence into the upper part of the reservoir again.

In constructing my improved feed water heater care has been taken to keep all of the joints in the pipes as well as all of the stopcocks or gates outside of the flue E, thereby rendering them easy of access for repairs or inspection.

Another advantage of my arrangement is that if an accident happens to one section of the heater the whole heater does not have to be cut out of the circulation and cold water be fed into the boilers, as is the case, so far as I know, with the heaters now in use; but by the proper use of the stop-cocks provided the damaged section of the heater may be cut out while the circulation is maintained intact through the other sections of the heater-as, for instance, if some one or more tubes in the righthand cluster give out by closing the right-hand cocks,f,f, and h, opening the cock [0 and the second cock, 0, from the right, the water from the supply-pipe J will pass through the vertical portion of pipe H, and along its horizontal part to the second branch pipe, 0, through it and its cock 6, and from thence will circulate through that portion of the heater lying between said pipe 0 and the reservoir 0.

Another advantage of my improved heater is that the sediment contained in the feed-water will be collected in the pockets 1), and may be blown oft without being carried into the boilers to be deposited in the form of scale upon the shell of the boiler to itsinjury.

\Vhat I claim as new, and desire to secure by Letters Patent of the United States, is-- 1. In a feed-water heater, a series of clusters of small pipes extending across the smoke-flue leading from theboiler to the chimney and having a portion of their length bent at right angles to the main portion, and two series of larger pipes located outside of the flue and each receiving one end of all the small pipes in one of the clusters, substantially as described.

2. The combination, in a feed-water heater, of a series of clusters of small pipes extending across the smoke-flue leading from the boiler to the chimney, two series of larger pipes located outside of said flue and each receiving one end of all the small pipes in one of the clusters, and two series or sets of stopcocks or gates arranged to regulate the flow IIC of water through the several clusters'of small pipes, substantially asdescribed.

3. The combination of the series of clusters of small pipes b o, the two series of larger pipes,-F G and F G, the reservoir 0, and suit-.

able pipes connecting the opposite ends of said reservoir to the opposite ends of the heater and one end thereof to the boiler, substantially as described.

4. The combination of the series of clusters of small pipes b c, the two series of larger pipes, F G and F G, the reservoir 0, provided with one or more sediment-collecting pockets, 1), and one or more pendent deflectors, r, and suitable pipes connecting the opposite ends of the reservoir to the opposite end of the heater and one end thereof to the boiler, substantially as described.

5. The combination, with a steam-boiler, of the series of clusters of small pipes b c, the

. two series of larger pipes, F G and F G, the reservoir 0, provided with one or more sediment-collecting pockets, 19, one or more pendent deflectors, r, and one or more blow-ofi' cocks, and suitable pipes connecting the opposite ends of said reservoir to the opposite ends of the heater'and one end thereof to the boiler, substantially as described.

6. The combination of the series of clusters of small pipes 11 c, the two series ofhirger pipes, F G and F G, the reservoir 0, provided with one or more sediment-collecting pockets,p,one or morependent deflectors, r, one or more bridges, s, and one or moreblow-ofl' cocks, and pipes connecting said reservoir to the heater and for discharging the water therefrom, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 26th day of August, A. D. 1882.

EDWARD KENDALL.

Vitnesses:

N. G. LOMBARD, W. E. LOMBARD.

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