US384937A - Feed-water heater - Google Patents

Description

(No Model.)

D. STARK.

lEEED. WATEE EEATEE.

Patented 111118,19, 1888.

l InUemnr:

2 flugs.

n. Puras, Pmumugwhur. walmngum n UNITED STATES PATENT OEEIc DAVID'STABK, OF SAN FRANCISCO, CALIFORNIA.

FEED-WATER HEATER.

SPECIFICATON forming part of Letters Patent No. 384,937, dated .Tune 19, 1888.

Serial No. 939,904. (No model.)

To a/ZZ whom it may concern:

Be it known that I, DAVID STARK, a snbject of the Queen of Great Britain, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Feed-rater Heaters and Purifiers for Steam-Boilers, of which the following is a specification.

My invention relates especially to that class of water heaters and puriers in which the water is heated and purified before entering the boiler, and has for its object the production of a means whereby the water is heated to a high degree of heat, under pressure directly from the waterlmain, without passing through intermediate machineryof the boiler and becoming impregnated with oleaginous matter, so incident to the lubrication ot' such mechanisms.

To attain this end my invention consists in the construction, arrangement, and combination of parts, substantially as will be hereinafter described and claimed.

The Iigure represented by the accompanying drawing is in vertical section taken through filtering-chamber and steam-jacket.

A represents the outer or steam jacket pron vided with the inlet pipe and port B, connecting with the exhaust of the boiler, and B the escape or outlet pipe or port, through which the steam, after passing through the jacket, escapes into the open air. `W'ithin the jacket is placed the filtering-chamber, suitably supported by the angle-braces C and the lower end bolted to the base -plate of the steamjacket, as shown. The filtering material of this chamber, which may be composed of broken stone cobbl es, pebbles, or bricks or other matter, is supported upon a perforated plate, D, and occupies about one-half ofthe space of the cylinder, and so that a chamber or open space, E, is left above the filtering substance. Sufficient spaceis also left above the lteringcylinder within the steam-jacket to receive the waterheating coil F, which latter is constructed of copper. As it becomes necessary in practice to heat the water quickly as it passes th rough the coil into the filtering-chamber, I construct my coil of copper, this metal being more sensitive to heat than iron. The lower end of this coil is coupled to the top plate of the filteringcylinder and passes into collector or settler H2, which deiiects or con` ducts the sediment thrown down from the liltering-chamber below and into the settler, leaving the water to be drawn off from the chamber H through the feed-water pipe J, at the rear or back of the inclinedplate above the sediment deposit, in a comparatively pure condition. A suitable draw-off cock and pipe, I, connects with this chamber H2 for drawing oft all sediment that passes down through the filtering material upon the inclined plates.

The hot-water chamber is tapped just below the upper end of the inclined plate to receive a feed-water pipe, J, which extends through the shell of the steam-jacket and connects with the steam-boiler to be supplied with the hot and purified water which is drawn off above the collected sediment. ever, extend upabove the pressure-gage, as shown by dotted lines J X, as the filtering-chamber is always under pressure.

Suitable man-holes, K K KX KX, are pro-` vided in both the steam-jacket and filtering cylinder for removing or cleansing the iltering substance, and a draw-ol cock, L, connects with the steam-jacket, through which to draw off the water of condensation.

In operation cold water from a water main or tank is admitted to the copper coil within the steam-jacket through t-he upper feedwater pipe, and exhauststeam from the steam-boiler is received upon the coil through the medium of the pipe B, which quickly heats the water` as it passes through the copper coil into the filtering-chamber, where theimpuri-ties are filtered from the water. lf any sediment fails of being collected by the filtering material, it will vpass down into the lower chamber o'r settler at the bottom of the lteriugcylinder,

This pipe may, howroo leaving the hot water pure and deprived of all foreign substances, to be drawn off into the boiler for use in making steam in a rapid manner. It should here be observed that, the outlet-pipe B being of the same diameter as that of the inlet-exhaust pipe, no undue pressure will be exerted upon the shell of the steamjacket. By this construction it will be seen that I am enabled to supply boilers with pure heated Water free from oily matter and Without the necessity of passing the hot Water through pumps, by which operation the valves of these pumps so employed soon become greatly impaired and necessitate constant attention or renewal.

Having thus described my invention, WhatI claim, and desire to secure by Letters Patent,

l. An apparatus for heating and purifying feed-Water, consisting of an inner filtering-cylinder under pressure and an outer shell or steam-jacket provided with a copper heating coil leading` from the supply-pipe orv cold-Water main into the head of the filtering-cylinder and adapted to discharge hot or heated Water upon the filtering material when heated by exhaust-steam admitted to the outer shell or steam-jacket, the hot-Water chamber provided with the deflecting-plate HX, and the funnelshaped mouth H2, as set forth.

2. The feed-water heater and purifier herein described, consisting in an inner cylinder under pressure, provided with an upper chamber and superposed Iiltering material, in combination with an outer shell or steam-jacket having inlet and outlet ports or pipes and a Water-heating coil therein, through which Water heated by the exhaust-steam from a boiler passes into the filtering-chamber, the hot-wa ter chamber located below the filtering-chamber and provided with the dellecting-plate IIX,

and the funnelshaped mouth H2, all arranged as set forth.

3. In a feed-water heater and purifier, the Y combination, with the filtering chamber, steanijacket surrounding the same, and heating-coil above, of the hot-water or drawoff chamber ofthe dellecting or sedimentconducting plate HX, as and for the purpose specified.

4. In a feedwater heater and purilier, the combination, with the inner filtering and purifying chamber or cylinder and outer shell or steam-jacket, of the man-holes K K KX KX, for the purpose of removing, cleansing, andV replacing the liltering material, as specified.

-In testimony that I claim the foregoing I have hereunto set my hand and seal.

DAVID s'rARK. [L s] W'itnesses:

C. XV. M. Siii'rrr, GHAs. E. KELLY.

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