US1216747A

US1216747A - Feed-water heater.

Info

Publication number: US1216747A
Application number: US85650614A
Authority: US
Inventors: James M Taggart
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-08-12
Filing date: 1914-08-12
Publication date: 1917-02-20
Anticipated expiration: 1934-02-20

Description

1. TAQGAHT. FEED WATER-HEATER.

APPLICATION FILED AUG=I2| l9l4.

Patented Feb. 20,1917.-

2 SHEETS-SHEET l.

r W dla/f7 D? efe/:fof

wf. n.. A1 .E. l S 7 6, s 1 2., um 1 m 1. M TAGGARL' FEED WATER HEATER.

APPLICATION F'ILED AueA l?. |914.

1,216,747.I y Patented Feb. 20,1917. l

2 SHEETS-SHEET 2.

Ev s'rAEs PATENT curro.

JAMES M. TAGGART, OF PORT WASHINGTON, NEW YORK.

FEED-WATER HEATER.

To allk fwwm t may concern:

.,Be 1t known that I, JAMES M. TAGGAR'r,

` a citizenV of the United States, and a resisteam which is admitted to thev apparatusf It is also a purpose of the invention to so arrange the circulation of the steam and of the .water within the feed water heater, and to so construct and arrange the several parts thereof, that those parts with which the water comes'into contact may be of relatively non-oorrodible materials and not require great tensile strength, and that those parts which require great tensile strengthshall be in contactv only with the steam and oil emulsified water, which will not act corrosively on such parts. Y

Still another purpose of the inventionl is to combine in one apparatus both a ygrease separator and a lfeed water heater, so that the grease separator shall effectively remove the grease and deleterious ingredients from the exhaust steam, and thereby enable me to,

more eectively accomplish the arrangement and construction of the several parts herein'- before referred to.- A

To attain the highest heating efficiency of the apparatusl and bring the feed water substantially to the temperature of the steam, I'

combine with'the body of the feed water heater a hot water container, the surfaces of which become heating surfaces insteadfof cooling surfaces, and thus facilitate the raising of the feed water to a high temperatureand practically to the temperature of the exhaust steam.

Other advantages of the invention will be apparent from the description and explanation hereinafter contained..

Referring to the drawings which accompany the specification to aid the description, Figure 1 is a vertical section of apparatus embodying my invention on the line A-A of Figs. 2, 3, and 4; Fig. 2 is a plan 'of the same; Fig. 3 is a cross .section on the irregu- Specication of Letters Patent.

Patented Feb. 2o, 1917.

Application filed August 12, 1914. Serial N o. 856,506.

lar line 3-3 of Fig. l', Fig.- 4 is cross section on the line 4-4 of Fig. 1.

A 1s the shell of the feed Water heater constructed of suitable metal of high tensilel strength, as sheet steel, and as has been hereinbefore stated, and will be hereinafter more fully explained, tliefconstruction and'v arrangement of my improvedy feed water heater is such that the shell will vnot be in contact with water which would corrode it.` Said shell A is closed at the bottom B, has a' cover C, and is provided with a manhole on the side. A compound fitting D'securedto sald cover C, has threadedin it the depending exhaust steainvinlet pipe d and the steam outlet E, which is formed in said fitting around said pipe d.

Directly inthe path of the exhaust vsteam entering the feed water heater from said pipe Z ismy improved grease separator consisting of a plurality ofl pans, as g, z/con-y centrically arranged, and the'outer pans be-v ing successively lower than the inner pans whereby there is produced ay radial' surgel and flow 'of the water outwardly over the edges of the pans, and a water surface freev from oil film is continually presented to the incoming steam, and the grease'is effectively removed. The oil and grease and other im`` purities collect in the lower'part of the feed water heater, and will be drawnou't through.

a suitable discharge pipe located at o. NA

draw off and clean out pipe maybe connected at o. The construction andoperation of' the grease separator are Vclearly set forth/in another application for patent, filed in the' United States Patent Oiiicef on or about? April 3rd, 1913, Serial Number 758,574. The grease and other impurities are separated from the steam by `said grease separatory and the steam and 'vapor freed from said" impurities rise up through the feed waterl heater'past the bales, containers andpans, and finally pass out through the said, steam outlet E, and meantime the feed water is raised to a high temperature as" will immef diately be described. n Y The quantity of feed water entering the apparatus by pipe 7c is regulated by the valve m controlled by afloat p in the well known manner; and the water preferablyfirst fiows into the open-ended distributing trough g, `over the ends of which 'it spills into the troughs QQ,, which arearranged at right angles to said trough g, land are provided with lserrated sides to properly distribute the water into the,pans It, as it drips from said troughs. Q-Q- Said troughs Q-Q are supported on a bracket r supported from the shell.

There are preferably a number of pans, as R, S, arranged 'at different levels and generally similarlto each other in construction, as will hereinafter be more fully described. Between the pans of different levels are baiiies, the construction of which will be hereinafter more particularly described, and which,`togetlier with said pans, cause the steam and water vapor to take a zig-zag course up through the feed water separator and give up'the, greatest practical,

part of its heat to the feed water. By 'the laforesaid arrangement of pans andvbafies,

together withthe container'fU, I produce a feed water heater of great heating eficiency.

Said pans, baffles and containers and troughs are of non-corrodible metal, such as lcast iron, or copper,brass'or other noncorrosive metals, since none of such parts are, subjected .to any considerable strains, and' therefore do not require to be constructed of metals havinggreat tensile strength. Said pans R, S are preferably made in the shape of segments concentric to said exhaust i steam in-' let pipe el, as is clearly indicated in Fig. 4:, the several segments fitting around said pipe d, and being supported on a spider t, which is supported in any suitable manner on said pipe E. Thus the segments of the pans can be easily removed through the manholev for cleaning and repairs. The peripheries of said segments are preferably serrated as.'

facilitate the equal drip ofl the Water over all parts of said periphery, and f vthere may be as many rows yof pans as are ,f

necessary.

Below7 each said row of'pans isfarranged a baflie, as T and T', said baflies'being each preferably composed of segmental. plates, respectively supported on radial bars W, W

Awhich are secured in said4 separator in any` suitable manner, andsaid baffles-are pref- .erably arranged with a slight downward in- 4 clination inwardly to produce a drip of water from the inner ends of said-bafes.,

The consequence of the drip of the waterv over the serrated edges of the pans and the 4 baffles, is that streams or films of dripping water Acome into contact with the ascendingV steam, and vthereby the most effective abe sorption of the heat ofv thesteam into the water is effected.

. The efliciency of the apparatus is still fur-A ther greatly increased by the container U. Said container is supported. in any suitable manner, is an open topped annular vessel of non-corrodible metalv` and preferably arv ranged concentrically around said inlet pipe rl, and in aposition to receive the water as it drips-down from said pans and baffles. Said container may be formed either-ias. a single annular' vessel, or as a plurality of communicating vessels; discharging through pipe i/ provided with a draw oif valve a,

and said pipe y communicates in the ordinary manner with float chamber p. Said container is preferably arranged in the lower half of saidv feed water heater, but at a suitable distance above the grease separator,

and so that the ascending steam will im'partA its heat to saidjcontainer. In Fig. 1 said container is shown arranged quite near to 'said pipe Z and so that the steam passes up top of the feed water heater, and the exhaust steam entering the feed water heater from the lower end of pipe d1, and the outlet for the steam being atA the .top of the feed water heater while theoutlet for thewat'er is much lower down, it follows that the water drips and flows, by reason of the baffles and pans,

in a rZig-zag` course through all parts of the interior of the, feed water' heater and through steam'which is rising through all parts of said' feed water heater in a Zig-Zag ccourse against the drip of the water. Thus a most intimate contact' of thev steam with the streams and films ofiwater is effected, and

a very high heating efficiency is attained.

Moreover the heated dripping water is finally collected in'said container U, which is iii Contact with the most highly heated st'eain, and the water .in 'said container again absorbs much heat from the steam. yThe sides and bottom of said container 'therefore become heating, not cooling, sur'- faces in their effect on-the temperature of the feed water, the steam is: freed from its oil and other impurities by the' action of the grease separator combined,.as aforesaid, in the same apparatus with the feed 'water heating devices; andthe final result is not only'more effcientheating but purity of the feed water much beyond what can be obtained without the combination lof my grease separating 'devices with my said feed waiter heating devices.,

Now having. described my improvementsy I claim as my invention 1. A feed water heater adapted to produce a balanced low'of steam and water in opposite `directions throughout the interior yof vsaid feed water heater,'the said feed water heater comprising an outershell provided with a water supply andwith a` steam -inlet extending substantially concentrically within. said shell to a point substantially below' the top of said shell, an outlet for steam at the top ofsaid shell substantially concen- ,tric to said steam inlet, and a plurality of alternating waterpans 4and baiies concentric lto said vessel and' arranged with steam passages -each of which are. of uniform area 'around within'said shell whereby there is produced a balanced flow of steam and water .in oppositedirections through all parts of of a closed shell provided with an inlet for` water at the t'op thereof and with an out-V let for steam at the top of said shell, a steam inlet pipe entering into said shell to a point considerably below the top of said shell, a container for water at the lower end 'of said pipe, a plurality of trays at dierent levels along the course of said pipe and a plurality of baiiies -between said trays, said trays and baiiles being adapted todirect the water into said container, whereby the steam ascends from the lower end of said pipe to said steam outlet around said trays and baiiles through falling Water.

8. A feed water heater comprising in combination, a closed shell adapted to resist high pressures and provided with a water inlet at the upper part and with a steam 'outlet at the upper party of said shell, a

steam inlet'pipe descending through the interior of said shell to a point lconsiderably below the top of said shell and said steam outlet,'a water Container around the lowery pant of said pipe, having a. discharge out -through said shell, a distributing trough adapted to receive the Water fromsaid water inlet, a plurality of pans below said trough, and a plurality of baffles between the said pans, said battles being staggered with respect to saidpans, said pans and baliies being adapted to impart a zigzag course to the steam ascending from the lower end of said steam inlet pipe to said steam outlet through streams of descending water.

Signed at NewYork city, of New York and State of New York, this 27th day of July, A. D. 1914. v

JAMES M. TAGGART.

Witnesses HERMAN J. RUBENSTEIN,

WALTER` W. HARRIS.

in the county 4'