US642783A - Feed-water heater. - Google Patents

Description

Patented Feb. 6, I900.

s. P. BUSH.

FEED WATER HEATER.

(Application filed. Jan. 16, 1899.)

2. Sheets-Sheet I.

(No Model.)

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No. 642,783. Patented Feb. 6, I900. S. P. BUSH.

FEED WATER HEATER.

(Application filed. Jan. 16, 1899.)

(No Model.) 2 Sheetsshnet 2.

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NITED STATES ATENT FFIQE.

SAMUEL P. BUSH, OF COLUMBUS, OHIO.

FEED-WATE R H EATER.

SPECIFICATION forming part of Letters Patent N 0. 642,783, dated February 6, 1900.

Application filed January 16, 1899. Serial No. 702,210. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL P. BUSH, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Feed-Water Heaters for L0- comotives, of which the following is a specification. My invention relates to the improvement of feed-water heaters for locomotive-boiler-supply tanks; and the objects of my invention are to provide improved means for heating the boiler feed-water before the same passes to the boiler of a locomotive, to so construct and arrange the parts of my improved feedwater heater as to impart a comparatively high degree of heat tothe waterin its passage from the tank to the injectorswithout the necessity of heating that portion of the water contained in the tank which is not needed for im mediate use, to so construct and arrange the parts of my device as to facilitate the use of exhaust-steam from an exhauststeam passage or other suit-able source, and to produce other improvements in details of construction and arrangement of parts,which will be more fully pointed out hereinafter. These objects I accomplish in the manner illustrated in the accompanying drawings, in which- Figure 1 is a detail view in perspective of a portion of a locomotive-body and feed-water tank containing my improvements. Fig. 2 is a sectional View on line 00 at of Fig. 3 of a steam-discharging shoe or nozzle which I employ in the manner hereinafter described. Fig. 3 is a View in elevation of the same. Fig. 4. is a detail View in section of a portion of a steam-exhaust column, showing the manner of connecting therewith the pipe through the medium of which steam is conducted to the tank. Fig. 5 is a vertical section through a portion of one leg of the water-tank and illus trating the connections between the latter and the exhaust-nozzle, and Fig. 6 is a sectional View on line 3 y of Fig. 5.

Similar numerals refer to similar parts throughout the several views.

In carrying out my invention I form in the end portion of one leg of the usual feed-water tank 1 a compartment 2, this compartment being formed by the employment of a trans verse partition wall or plate 3 between the sides of said tank-leg, said wall extending to a point slightly above the floor of the tank. Rising from the floor of said compartment 2 and in front of the lower portion of the partition 3 is a bafiie or deflector plate 4, the base iug upward through the bottom of the tankand on the rear side of the partition 3 is a steam-inlet pipe 8, the latter preferably extending to a point in the upper portion of the tank, and thence bent downward to a point in rear of the lowerportion of the partition 3. At this point the pipe 8 is screwed into connection with a steam-dischargin g nozzle-body 9, which, projecting forwardly beneath the partition 3, is of such length as to extend the greater portion of the distance between the side walls of the tank-leg. This shoe'has its outer discharging front portion, as indicated more clearly in Figs. 2 and 3 of the drawings, provided atintervals with slotted outlet-openings 10.

As indicated more clearly in Fig. 5 of the drawings, the pipe 8 may be run from the tank forwardly into the locomotive smoke-box, and thence into the usual exhaust-steam column 11, through which the exhaust-steam from the cylinder escapes in the usual manner.

In Fig. 4 of the drawings I have illustrated the preferable connection of the supply-pipe 8 with the exhaust-column, which consists in providing said pipe 8 with an extension 12, which enters the exhaust-nozzle through an opening in the wall thereof and which on the inn er side of said column is turned downward, presenting an open month, which is adapted to receive a proportion of the steam which rises through the column.

For the reason hereinafter set forth I preferably provide the pipe 8 at a suitable point (indicated at 13) with a check-valve, which is adapted to close by an upward movement or movement toward the source of exhauststeam. I also provide in said pipe 8, as indicated at 14, a suitable regulatingwalve, while in that portion of said pipe which is contained in the tank I provide, preferably at a point indicated at 15, a' check-valve, which is adapted to close by a rearward movement.

From the construction herein described it will be seen that the exhaust-steam which passes through the pipe 8 will be discharged through the slotted openings 10 of the nozzle 9, and by contact with the inclined and curved face of the baffle-plate athe steam thus discharged will be deflected upward and outward and mingled with that volume of water which is contained in the supplemental tank or compartment 2. By this process it will be observed that substantially all of the heating effect of the steam is imparted to the comparatively small body of water contained in the compartment 2 and that in said compartment the portion of water contained therein which is subjected to the most direct and therefore greater heat is contained in the lower portion of said compartment or that portion from which the water is discharged. It will thus be seen that by subjecting a comparatively small proportion of the water contained in the tank to the heating action of the steam, and as the water thus heated is that portion which passes first to the boiler, the diificulty of imparting a uniform and comparatively high degree of heat to the feed-water prior to its discharge from the tank is greatly reduced. It will also be seen that the form of the steam-discharging nozzle 9 and its location with reference to the baffle-plate t must result in a diffusion or intermingling of the steam with the Water contained in the compartment 2, which, as will readily be seen, must greatly aid in quickly and effectively heating the comparatively small body of water contained in said compartment.

It is obvious that the regulating-valve 14 may be employed to regulate or entirely cut oil, when desired, the current of steam from the tank, and that in case of a vacuum being formed in the exhaust-nozzle or other source In Fig. 5 of the drawings I have shown in dotted lines a modification in the manner of supplying the pipe 8 with steam, which consists in running said pipe into the steam-passage below the exhaust-column.

Although I have shown and described means whereby the exhaust-steam is conveyed from the exhaust-steam column of a locomotive to the tank, it is obvious that the pipe 8 might lead directly from the cylinders or any other suitable source of exhaust-steam.

The construction and arrangement of the parts of my improvements are such as to admit of their being employed in conjunction with the ordinary form of feed-water tank without necessitating a reconstruction of the same and with comparatively slightlabor and expense.

Having now fully described my invention, What I claim, and desire to secure by Letters Patent, is-

I. In a feed-water heater for locomotives, the combination with the water-tank, a supplemental water-compartment and a permanent communication between the main compartment and supplemental compartment in the lower portion of the tank and a wateroutlet communicating with said supplemental compartment, of a steam-carrying pipe leading from a supply of exhaust-steam and discharging into said supplemental compartment through said partition-opening and at a point adjacent to said water-outlet,substantially as specified.

2. In afeed-water heater for locomotives, the combination with the water-tank, a supplemental water-compartment permanently communicating in its lower portion with the main compartment at a point adjacent to the bottom of the tank and a water-outlet communicating with said supplemental compartment, of a steam-carrying pipe leading from a supply of exhaust-steam and having one end discharginginto said supplemental compartment adjacent to the water-outlet thereof, a controlling-valve 14: and a check-valve 15 contained in said steam-pipe, substantially as specified.

SAMUEL P. BUSH. In presence of- A. L. PHELPS, EDWARD M. TAYLOR.

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