US164959A - Improvement in feed-water heaters for steam-boilers - Google Patents

Description

ARMSTRONG. reed water Heater for steam-Boiler.

Patenfedjuhe 29,1875.

james Jrzfzf'ang IJvVEJvToR WITNESSES S u B 's it F.inirrnn STATEs PATENT -'OFFICE I VJAMES ARMsTROne, OFTOLEDO, OHIO.

IMPROVEMENT IN FEED-WATER HEATERS Fon sTEAM-BoiLERs.

Specification forming part of Letters Patent No. 1,611,959,` dated June 29, 1875; applic-ation tiled `March 4, 1875.Y c

Tov all whom it may concern Be it known that I, JAMES ARMSTRONG, ot. Toledo, in the county ot' Lucas and Sta-te ot' Ohio, have invented certain new and usefull Improvements in Feed-Water Heaters andl Purifiers for Steam-Boilers, ot' which the tollowingis a specification:

The objects oi' my invention are to separate andcollect the sediment andvto remove the' `)so as to create a slow upward and downward flow or current Of the water on its way tO the boiler, and further relates to the employlnent of cloth or other absorbent ,material against which the water passes, or by and in contact with which the water iiows.

The improvements claimed will hereinafter specifically be designated.

In the accompanying drawings, which show one way of carrying out my invention, my iinprovements 'are illustrated in connection with a heater ot the same general construction as that shown in Letters Patent granted to me December 31, 1872, before referred to.

Figure 1 represents a view, in perspective, of a heater embodying my improvements, with parts 'broken away to show the interior cou- .struction; and Fig. 2 a vertical central section through Fig. 1.

A heating-chamber, A, pans B B', and other parts connected with the chamber are similar in construction and` operation to those represented in my patent above referred to, except that, instead of fixed brackets for supporting the pans, I prefer to employ "a removable tripod or stand, C, resting ou the bottom and against the sides of the heating-chamberA, upon which the lower pan of the series rests. A purifyingchamber, D, projects from the lower portion of the shell ot' the heating-chamber A, the two chambers communicating near or at the bottom, and for a suitable distance upward therefrom, as shown in the drawings. The sediment or purifying chamber D isprovided. with a se- 'ries ot' partitions or dividing-plates, d d d e e', alternately projecting upward from the bottom of the chamber to near the top, and downward from the top some distancebelow the tops ot' the plates projecting'from the bottom. These plates cross the chamber, fit snugly against its sides, and are secured in position. in any suitable way, It is not essential that any particularnuniber of these plates should be employed, or that `they should be arranged precisely as shown.y The last one, d', of these plates I prefer to locate tartherffroin the plate next to it than the other plates are apart for the location and support ot' a filter when one is used. By these partitions the water, as it ows into the purit'yingchaniber from the heating-chamber, is forced to pass upward between the shell otl the heating-chamber and the iirst one ot' the plates d, and then down over said plate, then up again under the second plate e, and so on, as indicated by the arrows, Fig.. 2. In this manner a slow upward and downward dow is imparted to the water. The sediment is separated from it and collects in the spaces or receptacles ff g, from which it may be removed at suitable intervals by means ot' openings or valves a b c, of suitable construction. The water, after passing over the tinal partition, d', is drawn ot'f through a pipe, E, in the usual manner. It will thus be seen that a portion ot the sediment (the heaviest particles) will be deposited in the lower part ot' the heating'- chamber, a portion of the sediment (the next heaviest) will settle in the receptacle or space f, and so on, the lightest or final deposit being in the receptacle g. In this manner, Without the use Of a lilter, I am enabled to free the water to a sufficient extent of foreign substances, for it is obvious that any sediment that would escape over the last ofthe series ot' plates would float or be constantly moving in the boiler and not settle or clog therein. The motion of the water in its course over and under the partitions is slow and regular, creating but little agitation, and consequently does not stir up and keep the sediment in motion.

To guard against the passage to the boiler of, grease or oily substances, as well as other light floating matter, I prefer to employT burla-ps or other cloth or fibrous or absorbent material arranged soy that the water in passing over one or more of the partitions shall pass with itssurtace just beneath or in contact therewith. Such material may also be carried along the side of one or more of the partitions.

In this instance I have shown the cloth F as secured, by means of a plate, H, around which it is passed, in position above the upper ends of the upwardly-projecting plates or partitions d, and as extending down alongthe inner side, or that side along which the water iiows, of the last downwardly-projectin g plate, the cloth being then carried upward andh un g or hooked over the last plate, d', thus forming an upward filter, h, supported by the plates d e. This rlter, as before stated, although it is not deemed necessary tov the proper purification ot' the water, may be desirable in some instances. When not to be used as a filter the end of the cloth may be removed from the final partition d and allowed to hang down; or this end may be dispensed with entirely and the cloth terminated either at the bottom of the plate e or be left extending only across and -above the tops ot' the plates d d. l

By the use of the cloth or equivalent material, which should be renewed at proper inter- `vals, much of the grease floating on the water is caught and absorbed, and many light floating substances are retained, while the use of a iilter or material through which the water ing area is secured in a given space than could be obtained were the ilter extended horizontally between its supports, and as grease carried by the water oats on its surface, or at the highest point to which it can ascend unimpeded in the water, the grease would be presented only to the upper portion ot' the tilter, leaving the larger part free to the direct action of the water.

It is obvious that instead of arranging the partitions in a purifying-chamber on the side, or forming a lateral extension of the heatingchamber, that they might be wholly or partially arranged beneath the heating-pans in the bottomof the heating-chamber itself, the water from the lower pan being conducted to one side so as properly to enter to the partitions.

I cla-im as my invention- 1. The feed-water heater and purifier, constructed as hereinbet'ore set forth, having a chamber in which the water is heated, a puritying-chamber communicating with the heating-chamber by an opening in the lower portion of its shell, a series of partitions crossing the purifying-chamber, extending alternately from the bottom of said chamber upward to near its top, and from its top downward below the tops of said upwardly-projecting partitions, and a pipe for drawing ott' the water after having passed over the last partition, whereby the sediment in the feed-water is deposited according to its weight upon the bottom ofthe heatin g-chamber, between theishell ot' the heatingchamber and the rst partition in the purifying-chamber, and upon the bottom of the purifying-chamber between the partitions.

2. The combination of the purifying-chainher, partitions therein for directing the flow ofthe water, and cloth or absorbent material, arranged substantially as described, in contact with the water flowing through the chamber, whereby grease is caught wit-hout passing the water through filtering material.

3. The combination of the purifyingchamber, a series ot' partitions crossing the chamber and projecting alternately from the bottom ot' the chamber upward to near its top, and from the top downward below the tops ot' the upwardly-projecting partitions, and a filter, extending between the last two partitions and supported thereby, through which the water passes on its way to the pipe by which it leaves the chamber, these members being con'- structed and operatin g substantially as set forth.

In testimony whereof` I have hereunto subscribed my na-me.

JAMES ARMSTRONG. Witnesses:

ISAAC BAUGHMAN, E. W. SHEPARD.

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