US1566799A - Feed-water-heating apparatus - Google Patents

Description

Dec.. 22, 1925 1,566,799

1 .1. A. LE GAIN FEED WATER HEATING APPARATUS Filed Feb. 13. 1922 Patented Dec. 22, 1925.

UNITED sfr-Aras PATENT oFFicE.

JOHN A.. LE GAIN, F MALDEN, MASSACHUSETTS, ASSIGNOR TO WORTHINGTON PUMP AND MACHINERY CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF VIR- GINIA..

FEED-WATER-'HEATING APPARATUS.

Application led February To all whom z't may concern.'

. Be it known that I, JOHN A. LE CMN, a citizen of the United States, residing at Malden. county of Middlesex, and State of Massachuseets, have invented certain new and useful Improvements in Feed-Water- Heating Apparatus, fully described and represented in the following specification and the` accompanying drawings. forming a part of the same This invention relates to feed water heaters for locomotive use and especially to such a systemI as is described and claimed in` United StatesLetters Patent 1,350,322, pat ented August 24, 1920 by T. C. McBride.

The especial object of the invention is to provide a simple, rigid and compact unit Ior attachment to the locomotive boiler so constructed and divided that the' interior Y thereof is readily accessible for cleaning and repairs b the removal of a comparatively small an light weight casting.

For avfull understanding of the invention a detailed description of a locomotive feed ``5 water heating apparatus embodying all the features of the-jinvention in their preferred form will now be given in connection with the accompanying drawing, and the features forming the linvention then specifically pointed out in the claims.

In the drawing- Fig. 1 is a sectional elevation of the complete apparatus; p

Fig, 2 is a side elevation showing attach` ment to the locomotive boiler; and

Figs. 3, 4, 5, 6 are sections respectively on lines 3-3, 4 4, 5 5 and 6-6 of Fig. 1

` Referrin' to the drawing, A is the 'eat exchangel c amber or heater proper to which steampas'ses through steam connection 11 and to which cold water is delivered through passage 12 by the cold water su ply pump B, the heater chamber inlet of t e passage 12 being controlled by a suitable. s ringpressed spray valve 13. The heat exc ange chamber 1s provided with a bale 14 which aids in distributing the steam and procures a better minglin of the steam and cold water.. The con ensed steam and heated water pass through the baille 14 to a hot water tank C, C in which the bucket tank D is mounted, to which the heated water 13, 1922. Serial Fo. 536,001.

passes by over-flow. l/Vithin'the bucket tank D vis fixed a vertical rod or stem l5, which is hollow throughout its lower portion, upon whlch slides a bucket type float d, the lower end of which controls a plurality of ports 1 connecting the-interior of the bucket el with the hollow portion 2 of the stemV 15 upon lowering ofthe bucket d.- The stem 15 is also provided near its lower end with a plurality Aof ports 3 connecting withv a chamber 16, through which the excess return now passes to cold water supply pump B under the control of one or. more snctio valve 4. v

The lower part C of the hot water tank is connected by passage 19 to the suction chamber 20 of the hot feed water pump G. Suitable-suction valves 2l and 22 are seated in the upper end of the suction chamber 2() and are separated by a partition 23 arranged to provide two pulsation passages 24 and 25 connecting respectively the suction valves 21 and 22, one with the lower end and the other with the upper end of the pump G. Above the suction valves 21 and, 22 are mounted suitable discharge valves 26 .through which the heated water passes through chamber 27 and passage 28 to a sultab e delivery chamber, preferably formed as shown, comprising two chambers E and J connected by passage 18 and located ulpon oppsite sides of the tank C'. The c amber is separated from the tank C C by4 inclined partltion 17. The discharge con- `nection 29 1s provided with an interior extension 30 extended downward within the water in chamber J and airfsealed thereby.

. The two chambers E and J thus form a cornbined air and delivery chamber, a large capacity being thus secured with a heater construction of small dimensions.

The passage 28 preferably connects with the chamber J on the same side at which extension 30 is located and in line with the passage 18 connecting chambers E and J, so that any sediment carried by the water will be forced away from the extension 30 and collect within the chamber E and along the side of the chamber J opposite to .the extension 30, the water delivered to the boiler through 29 thus being freed from sediment and chamber E thus forming a :ag j

i v Sediment chamber. The pumps B and G are direct connected and driven by a suitable steam engine cylinder K is secured yand a lower section comprising the lower portion of the hot water chamber C, C', the combined chambers Ev and J, and the hot water feed pump G, all of which, together with their connecting passages, are formed in a vslngle casting, as shown.

The feed water heaterapparatus is supported as a unit from the locomotive boiler L by suitable brackets 32 provided with feet 33 engaging with Suitable feet 34 formed in the upper heater section for securing thereto by bolts, as shown.

I also provide suitable blow out openings i `5 closed by closures-.6, whereby the various chambers may readilyibe blown out andcleaned without dismantling the heater. In order to provide means'for cleanlng out the bucket tank D and the` chamber 16, I provide these with laterally extending passages 7 and 8 providedrwith suitably closed blow` out openings.

The operationqtif-v the construction will be understood fromfthe drawing and above description in connec'tic'n ,with Patent No. 1,350,322 above referred to.4 I Wha-t is claimed is 5 1. A feed water heaterv vunit having an i upper section comprising aheater, a lower section suspended `from the lupper-` section v and comprisingva hot Iwater chamber, a float tank, and a passage lfor delivery, of', excess water from the float tank, and means for attachment of the upper section to a locomotive boiler for support-of the unit by the upper section.

feed water heater unit having an upper section comprising a heater and a cold water supply pump cast integrally, a lower sectionsuspended from vthe upper section and comprising a hot water chamber and a hot water feed pum cast integrally, a vioat tank carried by the ower section, and means for attachment of the upper section to a locomotive boiler for support ofthe unit by the upper section. i

3. A feed water heater unit having an upper section comprising a hea-ter and a cold water sup ly pump, a lower section lsuspended from e upper section and comprising a `hot water chamber, a float tank, an excess chamber, and a Awoef/ea water passage connecting the float tankand cold water supply, and means for attachment .of the upper section to a locomotive boiler for support ofthe unit bythe upperA section.,v n

4. A feed water heater unit having an upper section comprlsing a heater and a cold water supplyjpump, a lower section suspended from the up er section and comprising a hot water c amber, asediment chamber and a hot water feed pump, and means -for attachment of the. upper section to a Alocomotive boiler for supporting the unit by the upper section.

5. A 'feed water heater unit having an v 6. A feed water heater unit having 'ani upper sectioncomprising a heater and a` hot water chamber cast integrally, and aff lower section comprising a hot water chamber., suction and delivery passages, and a.`

sediment and air chamber cast integrally.

' 7. A feed water heaterrunit having anl upper section comprising a heater, a hot waterchamber and a cold water supply pump cast'integrally, and a 'lower section comprising a hot water chamber, suction and delivery passages, a sediment and air hot water. feed pump cast integrall l i i '8J-AL iyeed water heaterhaving chamber C receivingthe heater water, 'pump cylinder G,'suction chamber 20, delivery chamber 2T, and air chamber J, all arranged substantially in line, and passages 19 and 28 around the oppositey sides of the pump cylinderand connecting respectively chambers C' and 20, and chambers 27 and J.

9. 'A feed water leater having chamber C receivingthe heater water, pump cylinder G, suction chamber 20, delivery chamber' 27 and sediment and air chambers E and J, all arranged substantially in line, passages 19 "and 28 around the oppositeV sides of the pump cylinder and connecting respectively chambers C vand-20 and chambers 27 and J, and passage 18 around chamber C connecting chambers E and J i In testimony vwhereof, I, have hereunto set my hand.

' JoHN'lL LE GAIN.

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