US533523A - brangtter - Google Patents

Description

UNITEDSTATES ATIENT An'rnnnc. Runner-1ER AND WILLIAM n. snencnsn, or DANVILLE, III-Iliinois.

FEED-WATER HEATER. AND ,Pu strlen.

srncrncn'rron forming part of Lettere Patent No. 533,523, dated February 5, 1 ses.

Afpplicetian filed October 24, 1893,

sono 1re/iconen. un meer).

TDfaZZ l'whom it may concern:

Be it' known that we, ARTHUR C. BRANCHER and WILLIAM B. BRANCHER, of Danville, in the county of Vermilion and State of Illinois, have inventedv certain new and useful Improvements in a Combined Feed-Tater "a combined feed water heater and purifier for steam boilers, as hereinafter setforth and claimed.

Referring to the accompanying drawings@Y 1n which similar letters-of reference 'indicate like parts, Figure l is a View in vertical section of afeed water heater, purifier and regu` later, a portion of aboiler in longitudinal sec- Lion to which the feed water heater is attached and a pump regnlatorvalve -in verticai section attached to theboiler, all constructed and arranged in accordance with this invention. Fig. 2' is a detail View of one of the distributing pans of the'feed water heater. Fig. 3 is a detail lview of the settling basin and collecting ring offthefeed wat-er heater, "and Fig. 4 is a detail view of the valve'of thepuinp regulator.

A lindicates,the shell or casing ofthe feed Water heater and purifier provided with the feed lpipe A, projecting into the .upper `end-of thechamber of the feed water heater and below the surface of thewater in the upper pani).

` Projecting through the top and down centrally to the lower end of the chamber of the'feed wavterheater is a. blow-odi` or discharge pi pe B, provided with a valve or cool; B, which may be opened for the purpose of blowing off the sediment and scurnfrom the settling basin D, while the boiler is under full pressure. The 4lower end of the blow-od pipe B, terminates just above the bottom of a settling basin D mounted onthe bottom of the chamber of the feed water heater mounted on the settling basin D, so es to project above and below the plane of the top of 'the basin D,k and to leave a space below for thepow of water, is a collecting ring E, the function of which Withthe,

`spaced from each other sli shtest force.'

basin D will ybe hereinafter particularly described., i Upon the blow-off pipe B are mounted of number of distributing` pans C, constructed with'a central sleeve Cf, Vby means of which the pans C are slidnpon the pipe B, and are the bottom of each' pan restingr on the top of the sleeve C ofthe pan beneath. ring or sleeve d, bolted or clam pcdl to the pipe B, vand located a little above the settling'basin D.

The lowest pan C rests upon a.-

The-top A. of the feed weiter heater is removably secured to 'the flanges A" of 'the sides by'bolts and nuts A". By means of this construction the pens() may be removed from thefeed water heater andcleaned of scale or other impurities. i

The feed Water heater A is secured by bolts, rivets or cap screws, e to a boiler F and the chamber of the feed Water heater opens into the boiler F, by means of the opening or passage-Way F', beneath the settling basin D. Rive/ted to the boiler F over an opening;a F

is a tube F" and valve chamber 'W connected by steam pipe G to a boiler feed pump or injector and provided with al hollow cylindrical regulating valve V, having perforations V in its side and perforations-V" in its top by means of which the passage of steam is permitted through perforations V to the pipe G when the valve V d'escendsin chamber lV to bring'tho holes'V opposite the opening at the end of pipe G and the passage of steam is permitted through the holes V to the space above, thus making the valve perfectly balanced and free to act in response to the The valve V is connected byA a valve stem S to a floot J in the boiler F, by means of 'which the valve is opened and steam is allowed to pass tothe pump or injector as the water lowers, while it is closed as rthe water-rises and the steam is'shut off, thus increasing or decreasing the amount of feed water in proportion to the demand. This keeps the water at a regulan height and increases the efficiency ofthe boiler. e

-' 'L indicates the water line in thel boiler in which the'oat J rests..

,The operation-'of the invention is as' fol ISO lows: Yhen the float' J upon the water line I. descends as the water lowers, steam is admitted to the pump or injector through the pump-regulating valve V- and steam pipe G, starting the pump or injector which supplies waterthrongh the pipe A. The feed water entering the chamber of the feed water heater A from the feed pipe A, flows downward over the distributing pans C, and the impurities are deposited'on the pans C or settle or iioat' in the settling Abasin D, while the purified overflowing water enters the boiler F through the opening F.' The floating impurities are held in the settling basin D by the collecting ring E. During the passage of the feed water over the pans C, live steam, under full boiler` pressure, comes in direct contact with the feed water, thus heating the water and precipitating the impurities. The floating impurities and settlings in the settling basin D are blown off and removed by opening the valve 13"' in the blow-olf pipe of the steam upward through blow-olf pipe B.

The advantages of our invention are as follows: The full boiler pressure having free access to theinteriorof the feed water heater, will cause -the water to be heated to the temperature due to that pressure. The steam that is in contact with the feed water quickly gives up its heat to the feed water and con denses, tending to reduce the pressure in the boiler. This reduction of pressure is i1nmediateiy met and ."con'nte'racied" by the more rapid evaporation of the water in the boiler, all of which is maintained at the exact temperature due to the pressure in the boiler. This 'rapid evaporation of water requires great quantities of heat, which is taken at the most available point, that is, the point of highest 'temperatu're,.the vheating surface of the boiler. This reduces the temperature of the heating surface of the boiler to that of the water in contact with itand as the water continues to boil as long as steam is condensed in the heating of the feed water, or used for running the engine, or for any other purpose that tends to reduce the pressure in the boiler, the plates or tubes are maintained at a uniform and much lower temperature than if water below the boiling point were in contact with them, is the case when water is fed into the water space of the boiler.

IVe havediscovered that water will not absorb heat as rapidly from the heating surface of the-boiler before it begins' to boil as itwill afterward-and this is especially so if Athe boil- Ving is forced by a reduction of pressure by condensation or otherwise. Hence more heat will be taken from the fire and transmitted to the water when acting on ay reducing pressn`re than when acting on an increasing pressure, if the water in contact with the heating surface is at the temperature of boiling under pressure.

of a shell having a Water inlet and asteam 'to' be easily and safely applied to the boilers of traction engines and the like.

Having described our invention, we claiml. In a feed-water heater, the combination of a shell having a water inlet and a steam inlet, a settling basin in the lower end of the shell, and a blow-oi`f pipe extending through the shell and terminating in the settling basin, substantially as set forth.

2. In a feed-water heater, the combination inlet, a settling basin `in the lower end of the shell, a scum-'collecting ring in the settling 4 basin, projecting above and below the plane of the top of the basin and leaving a space between the bottom of the basin andthelowcr edge of the ring, and a blow-od pipe estending through the shell and the ringl and terw minating in the settling basin, substantially as set forth. I

3a In a feedwater heater, the combination of a shell having a water inlet in its upper @Lid and. ZDI'JUHLL! LIUI in. ite luvnol' 61H2 nu web tling basin in the lower end of the shell, a blow-olf pipe extending vertically through the shell and terminating in the settling basin, and a set of distributing plates mounted ou the blow-0E pipe, substantially as set forth.

4. In a feed-water heater, the combination of a shell having awatcr inlet in its upper end and a steam inlet in its lower end, a settling basin in the lower end of the shell, a scumlcollecting ring vin the basin, a blowfotf pipe extending vertically through the shell and the ring and terminating in the basin,` and a set of distributing plates mounted ou the blow-off pipe, substantially as set forth.

5. The Combinatiomfwith a steam boiler, of

a feed-water heating compartment seated on the boiler and having a single opening com municating with the steam space of the boiler and serving as a passage way for the steam from the boiler to the feed water compartment and for the water from the feed water compartment to the boiler, substantially as set forth. .l

In testimony whereof we have signed this IOO I [IO specification in the presence of two subscribn ing witnesses.

ARTHUR C. BRAXGIIER. WILLIAM B. BRANCIIER. Witnesses: Gus GOLDSMITH, GEORGE W. WHYTE.

Geuternsigned AGmcman"'La@ -fLu'er's' raient No. 53 3,523.

` It is hereby certiedtht the names of hepateutees in Letters Peteur 533,523, granted February 5,1895, Yfor an improvement in Fee-Water Heaters and Purifiers,

1 were errqneoulsly written and printed Arthur B'raueher and'vWilliam B. ]I3rarreher, 7 whereas Said namegfshould have been written end printed rthu. Brancher and WezziamrBawhm-Faha-mas the saieLemrs Patent gueule be 'read with this; cer- ,sigiledorguersigner seared. r'ig lenh'ay pf February, i D. 1895;

i JNO. MfvREYNOLDS, Assistant' ,Secretary ef thelntermz A r JOHN 15mm-ma,

` Commissionerpf Pqtmzts.

Images