US81117A - Improvement in feed-water - Google Patents

Description

E. R. STILLWELL, FEED WATER HEATER FOR BOILERS.

Patented Aug. 18, 1868.

v fnwc EDWIN li- STILWELL, OF DAYTON, OHIO.

Letters Patent No. 81,117, dated August 18, 1868.

IMPROVEMENT IN FEED-WATER HEATERS- FOR BOILERS.

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TO ALL WHOM IT MAY CONCERN:

Beit known that I, EDWIN It. STILWELL, of Dayton, in the county of llIontgomcry,-and State of Ohio, have invented a certain new and useful Improvement in Feed- VVater Hcaters; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making part of this specification, in which Figure 1 is a perspective view of my improved feed-water heater.

Figure 2 is a view of one-half of the interior, as" it appears when the heater 'i's -o'pened, for the purpose of removing the lime and other-impurities deposited on the shelves. i

. Figure 3 is a top view of one of the shelves I I. V

Figure 4 is a perspective view of the steam pipe I-I, showing-the openings in the shelves and thc steam-pipe, and the dripping-troughs it h.

The nature of my invention eonsists- First, in providing the induction-water pipe of a feod-water-'heater with a distributing-disk, for the purpose of causing the water to descend in a thin sheet. 7 I l Second, in the employment of a series of -orifices for the introduction of steam at difi'erent levels, so as to bring it simultaneously in contact with the water in allpartsot' the heater; and

Third, in the details of construction.

i In the drawings, A represents the case of afeed-wate'r'heater. It is represented as cylindrical, but may be made of any figure, with curved or plane surface s. E is the induction-steam pipe, connected with the exhaustvalves of the engine, and receiving its" steam from them. D is the eduction-steam pipe. Gjis the inductionwater pipe,- through which the water to be heated and purified enters the-heater. 'It is provided with a Valve, X, which is so operated asto admit water only each exhaust ofsteam from the engine, so that the water may enter the heater at intervals simultaneously the steam. K is the eduction-water pipe for conveying the heated and cleansed water to the boilers. I The case may-be made in two parts hinged togethor,'and further secured by belts, or it may be connected by bolts only. i 1

The water, upon entering the heater through the pipe C,-is di schai 'ged within andnear the bottom of the Overflow-box F, fills the box, and flows out upon the distributing-disk G, from which it would fall in a thin sheet upon the upper shelf 1, it it were not met by aburre nt-ofi semen-omen topof the steam-pipe H, which dashes it into spray and throws it outward toward the i'nne I ll's' of "th ecase. It then falls upon shelf I, and flows inward. toward the opening 2', near the pipe -'I-I. Descending through this opening, it falls toward the second shelf, I but in passing the orifice j in the steam-pipe,-i.it is met by a current of steam, and again dashed into spray, and throwntoward the circumference of theshel fig desired,- and'toprevent all possibility of the water entering the orifieesof the steam-pipe, and to check aigt 0 rapid descent of the falling water, drippingtroughs or supplementary shelves, h It, maybe attached to th'o'steam-pipe, just below the opcningin each shelf, and just above the orifice in the steam-pipe, projecting towardthe case for enough to throw the'watcr beyond the outer edge of the opening in the sh lf below. I do not, however, consider these shields or dripping-troughs essential. r

The water having descended, as described, to the second shelf, continues to fall from shelf-to shelf in the lame manner, meeting, as it passes through each opening, with a fresh current of steam, which separates it into spray, greatly agitates it, heats it, and cleanses it from lime and other impurities, which are deposited on the shelves. In this way it will be seen that a series of steam-currents is in simultaneous action below each shelf, and acting upon each fall of water, which is thus thoroughly heated and purified.

Having thus desbribed my invention, what I claim therein as new, and desire to secure byLcttcrs Patout, is

i. A distributing-disk,' located above the series of shelves, to receive and distribute the water from the induction-water pipe, substantially asdescribed.

2. A series of shelves to check the fiow and receive the impurities of water, in combination with a. steampipe or pipes, arranged substantially as described, andv provided with o series of orifices for introducing the steam at different levels, so as to bring several currents of steam into fresh and simultaneous action upon the wuter substantially as described.- I Y 1 l 3. The induction-steam pipe H, entering below the series of shelves, and provided with a series of openings for the escape of steam, substantially as described.

4. The dripping-troughs h 7:, arranged substantially as and for the purpose described.

EDWIN ST-ILWELL.

Witnesses:

E. NELSOX Bryn-en, E. S. Yonxe.

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