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Publication numberUS939010 A
Publication typeGrant
Publication dateNov 2, 1909
Filing dateMar 22, 1909
Priority dateMar 22, 1909
Publication numberUS 939010 A, US 939010A, US-A-939010, US939010 A, US939010A
InventorsThomas Grieve
Original AssigneeThomas Grieve
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Feed-water purifier.
US 939010 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


. Patentd Nov. 2, 1909.



Specification of Letters Patent.

Patented Nov. 2. 1909.

Application filed March 22, 1909. Serial No. 484,974.

To ati.' whom it may conceivr: v lBe' it known that I, THOMAS Gramm, a citizen of the United States, residing at Perth Amboy, in the county of Middlesex and State of New Jersey, have invented certain new and useful Improvements in FeedlVate'r Purifiers, of which the following is a specification.

My invention relates to water purifiers, boiler cleaners, and combined feed water heaters and purifiers.

The object of my invention is to carry the incoming feed water of a'boiler' through a zone of high-temperature and to be supplied intotlie boiler proper free of all impurities and above boiling point or at a temperature corresponding to that of the steam in the boiler.

As is well known water parts with all its impurities or scale-forming substances at its first boiling, and by retaining` feed water at this high temperature in a closed chamber, for as long a t-ime as possible, the scale- `forming impurities contained in the water will be precipitated in the purifier or cleaner and before said impurities are carried into the boiler and deposited on its heating surfaces where the incrustations in a great many instances due to .the construction of the boiler it is inaccessible and rem'oved with great difficulty., The depositing of these impurities or scale in a boiler greatly reduces' the efficiency and life' ofthe boiler due to corrosion and leakages.

To increase the period of time in 'which the feed water is retained in a given length si cleaneneer pui-iden; here a series of curved pates set vertieally and transversely to the direction of :flow of the water through the purifier, so that an eddying and circuitous route has to be taken by the water in passing through the apparatus. These plates are likewise slightly curved and alternately turned back to give an easy i'notion to the owing water, and placed in-. creasing distances apart from the water inlet to the outlet in order to reduce the velocity of the water to a minimum, so that the scaleforming impurities or precipitates can I sectional view of a boiler showing the rela-i l tive arrangement and side elevation of my improved purifier. Fig. 2'is a top plan view 3 is an enlarged transverse sectional view on line III-HI of Fig. 2.

Similar reference characters rindicate the. same parts in the several views.

l represents the boiler' and 2, 2 the tubes instance lcarrying a series of Supports or brackets 3. 3. Resting on these brackets is heater and purifier provided with a water inlet 5, which is at one end of the receptacle and connected with any7 suitable source of water under pressure. 6, is the feed water outlet at the opposite end of receptacle Lt from that of the inlet and preferably as indicated with a turned down end and connected with the upper section ofthe purifier. Said receptacle or puri- -ier is preferably placed below the water' level a ofthe boiler, and while l have shown and described the saine in such relation, it will be readily understood that this forms no essential lfeature of -my invention as thesaid piiriier mai' be plas-:ed in the' steaan jspace of any time of boilerr sd ieng as the oughly and highly heated thereby precipitating .its impurities.

7,' 8, are a seriesV ofupright and curved plates preferably fastened to the side walls of the box t, and extending from top. to `bottoni. Said plates are curved as shown and shorter than the width of the box 4, the plates 7, being fastened on one side wall while plates 8, are secured to theopposite sides. These plates are alternately `arranged quickly and eifectually' settle to the bottmi of the purifier with its cover removed. Fig.

water passing `through the purifier is thor-V of the same, the upper row of which. inlthis the closed box or receptacle at, ofthe water staggered 'so'as' tovform' -passage for ,the'waten i n`p i from the inlet ,5, to-outlet'i The plates'S, areturn'ed back ltoward the inlet 5, to give an eddyng'- action tov-the water, and the distance between the plates increases' froml the 'inlet to "the outlet so' 'as to.- 'reduce Athe .velocity of. 4 the'- water4 mit' allthe precipitates to drop to) the; o ttom of thelr tacle and the heated feed water enter the y iler purified. j

' 9, 9,- are blow-"olf pipes at the'bottom the' receptacle 4, andare '1ovid'-dggasrithopen-l ings 10,510, through' which tly precipitated impurities pass en, a? `valve ntshown is opened vin ipe '11,.connecting said pipes I10, 10,' and'w e -Ihave shown two pi esvlO, -only one may be'used if so desire The .pipes 9, 9,'are' so arranged that as the water passes backward and forward in its Asinuous path onthe bottom, the precipitatedimpuri Nj ties :are carried toward theopenin'gs 10,10, and -placed inl such a position as to be easily such matter orimpurities while the boiler 'is .and completely blow-aout ofthe purier.4 It wil scription4 and relation of' parts an mode'of I o eration, I have devised a heater in which a l solid matter, sediment and other impur-il ties in feed water are deposited :within the l area of the cleaner or purifier, and also provide a'complete blowing out or'relnoval of in use, hot, and under working pressure,

1thereby permittin the boiler` tobe run Aconength of'tlme and cleaned whatI 1 lhaveshQt-vnfana described-myn vice as applied toa` iieitu'be boiler`, -I l wish itto be distinctly understood"injcarrying out my invention,I the same maynec'essarily be emploged with any' kindof typei-ofjb'oiler, it

only v cleaner- .be'eXposedto the heat ofthe boiler.` Havin' 'now fully',described my invention eingnecessary that 'the purifierA -or what I c aim as new,- and'de'sire to secure by Lfajffeed water-purifier or 'cleaner .coin-r prising'a horizontal" receptacle having an' inirforate bottomand sidesand a feed water inlet at one Vend and anl outlet at its other;

end, a series of separated deflecti'ng plates shorter than thewidth yof the receptacle and interposed between the first series of and inclined toward. the inlet, said plates and ara e and adjacent-each side, whereby the eed water is com elled to iiow alter-v nately forward and bac ard across the bot;A

and toward the blow-pipe openings.' t 2; A'feedf water purifier or cleaner'c'ombeseen from the :foregoing-'de-l 'the bottom, and' aposaoio 'i la .horizontal rece tacle-havi sin impeifprate andgides 'and :iig feed water inlet at oneend 'and an outlet at its 'other end, aseries of, separated and curveddeiecting .plates shorter than-"the width Vof 4the rece tacle and secured Within the saine and incllned toward the outlet, and a series of 'similar deflecting plates Ainter osed be-v tween-the' first series of platesl an inclined toward the inlet, said two series o f plates forming a continuous and sinuous passage in 'said receptacle, a'blow-oi pipe having a series of openings and parallel andadjacent 'each side, whereby the feed-water is comy pelled to flow alternately forward and backward across thebottom. and ltoward -the blow-off pipe openings.l

3.A feed water purifier' orfcleanercom- .prising a'horizontal receptacle having an imperforate .bottom and sides anda feed waterinlet at one end and an outlet at its other end,l a series of separated an'd' curved deiecting, plates shorter than the width of i the receptacle and secured within -th'e same iclined toward the outlet, and a series of similar deflecting 'plates inter osed be'.

tween the Vrst vseries 4of plates an inclined .toward the inlet, the distance between said two' series of plates gradually increasing-v .'from the inlettoward the outlet end and forming a continuous'and sinuous passageA in said receptacle, whereby the feedjwater 1s compelled, to flow alternately forward and backward across the bottoni.

'74. 'A feed Water'purier or cleaner com-' prising a horizontal receptacle having 'imperforate bottom and sides and a'v feed 'water inlet atj one endendA an outlet. at its. y'other end, 4aseries -of se arated deilecting 'plates shorter than the width of the receptacle'and secured to a side Wall and Within the receptacle and inclined toward the outlet,- a -seco `n d series of- .similar defiectin plates securedfto the opposite side wall ang Iinterposed' fbe'tt'v'f-een the first series of 'plates and.inelin ed. toward the inlet, said distance' betWeent-he two series of plates Gradually 1ncreasing from the 'inlet-toward the out-let end, said two series of plates formin a co1,

tinuous and sinuous passage in sai recep' tacle` and compellin 'the feed water t'o iiow alternately forwar and backward across blow-ofi1 pipe communie eating with the bot-tom of the receptacle and .adjacent to the side wall. v fier or cleaner com -prising a horizontal receptacle having an iinperforate bottom and' sides and a feed water .inletat one end van out-let at its other lf5.5' A feed waterpurl en'd,'a series of separated and curvedfdeiect ving plates shorter than the-width ofthe receptacle and securedV to 'side' wall .andi within i Wim cured to the opposite side walland interposed between the .irst series of plates and inclined toward the inlet, said two series-of plates for'ming a continuons and sinnous passage in said receptacle, and compelling the feed water to flow alternately forward and backward across the bottoni, and a blowoff pipe having a series of openings connected with the receptacle and adjacent to the side wall. y 10 In testimony whereof I have aHiXed my signature in presence 0f two witnesses.


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US4914659 *Feb 10, 1988Apr 3, 1990Hewlett-Packard CompanyMethod and apparatus for software branch analysis
US5729676 *Nov 8, 1994Mar 17, 1998Nec CorporationMethod of generating data for evaluating programs
Cooperative ClassificationF22D1/42