US929050A - Feed-water heater. - Google Patents

Description

J. S. SWEENY & W. W. GRINDLE.

. FEED WATER HEATER' APPLICATION FILED IBB. 13,19'09.

929,050,v v Patented July-27fl909" 2BHEETB--BHEET 1.

Fig.1.

witnesses.

J-. s. SWEENYK: W. W. GRINDLE.

r531) WATER HEATER.

APPLICATION FILED 753.13, 1909.

Patsntafi My 27, 1909.

f 'IHFETSBHEETQ.

Stemmwill 22 asses UNITED STATES PATENT OFFICE.

JARED S. SWEENY AND WILLIAMW.; GRINDLE', -OE DECATUR, ILLINOIS;

FEED-WATER HEATER.

, To all whorn 'it'vitay concern: I Y

Beit known that we, JARED S. SWEENY and WILLIAM V. GRINDLE, citizens of the United States, and residents of Decatur, in the county of Macon and State of Illinois, have invented certain new and useful Improvements in Feed-Water Heaters, of which the following is a specification.

This invention relates to steam boilers, and more especially to the heating of feed ,watertherefor; and the object of the same 'is to produce an improved steam injected feed 'water heater which will increase the temperature of the water leaving the in- JGQtOI before it enters the boiler, yet Without robbingih'elatter of any of its steamQ ToijthiS-end the invention consists in a feed Water heater constructed as an iinprovement on and simplification ofour previous in-yentiomfor which an application for patent is pending bearing Serial Number {167278 and filed Dec. l2,1908. y

The preferred construction of the present idea is set forth in the following specifieation and shown in the accompanying drawin s, Wherein I T gure l is ,a side elevation of a portion of a locomotive boiler, showing this invention attached thereto and properly connected. Figs; 2 and 3 are central vertical sections- -with the valves closed in the former and open in the latter. v I ig. l; is central vertlcal section and Fig. 5 a lower end VIQW' of the water valve.

.the 'pipeid to said heater,

Referring to the drawings, the letter L designates a loeon'iotivehaving a steam dome D, I is the injector, B is the boiler check, and F is the feed water heater here shown as attached to the locomotive at f. The water flows from the injector through the pipe 2' to the feed water heater F, whereas the steam flows from the dome I) through and the super heated water flows from the latter through the pipe 6 and into the boiler at the point B.

Theobject of the present invention is to utilize the heat of the steam from the dome to su-perheat the water before it enters the boiler so that it will not. chill the Water already in the same and may be more guiclgly converted into steam therein than if it: were injected cold. This. object is accomplished by constructing the invention as fThe shellior casing 1-is-preferably a casting of brass providedwith a horizontal pan Specification of Letters Patent. I Application filed February 13, 1909. Serial No. 477,803.

steam passage 5 high, and above the shoulder the stem Patented Ju1y'27, 1909.

tition 2 producing a steam chamber'3 at the top and a Water chamber '6 at the bottom,

and an upright partition etprodncing a communicating W1tl1 said chamber 3. Across the uppeniportion of the steam chamber 3 is a secon artition '10 into a hole in which is screwe anipple 9 forming the steam valve seat, the entire'nip 'ple being smaller than the inlet 7 with which the steam pipe dcomniunicates. Into a hole in thebottom of the shell is screwed an'ipple 8 constituting the water valve seat,

and the Water inlet pipe 2' connects with this nipple. The ,Wateroutlet pipe bncommunicates in any suitable Way with a water outlet hole 28 formed in the side of; the shell and opening into the Water. chamber 6, and this hole is of such size tha t a nozzle ..30 can be bodily removed therethrough or inserted therein so that its threaded ,end29 engages .a hole in the upright partition 4 and'puts it in communication with the steam passage'ti.

The water valve is adapted toiclose'upon the seat in the nipple 8, its stem 81 rising throu h the chamber 6 and being preferably shouldered as at -82 to prevent. lts" rising too 'duced as at 83 and extends through packing i such'as 'a wear nipple 84 screwed into the partition 2 either from above or from below as shown and ofsuch a size that it can be removed through the hole foreithernipple 8 or 9. By preference the stem 81 is formed" with an air chamber 85 which extends downwardly through the head 80 and communicates with the axial space between wings 86 beneath'said head and opens radially outward through'slots 87' between said wings. The latter are made triangular .111 cross .sec-

.tion as best seen in Fig. ',5.

The steam valve 90 is adapted to close:

downwardly upon the seat in the nipple9. 1

Beneath its head it has wings 92 with grooves the valveits stem has asocket 93;whi chfits 91 between them, andbeneath this pai'tof removablydver the reduced upper end 8310f the ste'm ofthe Water valve-thus permitting the steam valve to-be lifted upwardly out 'of place at will. a V

The parts being constructed as above described vand ,properly assembled, the opera- 'tion of this device is as follows: Witter beg ing'admitted from the-injector I throughthe pipe 6 raises the water .valve 80 from the. po

.110" sitionsh own in Fig. 2, and steini81 raises 1 ,flle steam valve 's'o that both 'fvalves. are

live steam into it.

opened as shown in Fig. 3. Steam passing from the dome I) through the pipe 0, enters the.'inlet 7, passes through the grooves 91 in the steam valve 90 and into the steam chamber 3, whence it flows through passage 5 and out through the nozzle 30 in a jet into and along the pipe b-thereby heating the water within the chamber 6 through radiation by' the inclosed nozzle and heating the water within the pipe I) through the injection of Should steam escape from the'ehamber 3 through the nipple 8 L into the chamber 6, it will have no unfavon able elfect as it will only mingle with .the water passing out through pipe 6 and will do no harm. When the admission of water through pipe 2' is cut off, steam pressure on the inlet side of the steam valve 90 will cause both valves to close so that the parts resume the position shown in Fig. 2. I

' A striking feature of improvement in the present constructio'naside from its simplification over our former device-consists in the employment of a water valve of peculiar shape so as to prevent it from chattering.

As best seen in Figs. 4t and 5, the stem ofchamber 6, the air within the chamber 85 being gradually carried out with the inflowing water so that water hammer is prevented, and said chamber finally fills withwater. When the inlet 2' is again closed, the parts resume their former position quickly under steam pressure upon the head of the steam valve 90, both valves seating at practically the same momentalthough finding their seats any-way by reason of the loosenessot' .the socket 93 upon the reduced portion 83 of the stem. Furthermore, the various nipples may be adjusted from time to time so that the seating of the valves will be caused to take place as nearly simultaneously as possible.

What is claimed as new is:

1. In a feed water heater, the combination with a shell having a cross artition producing' steam and water eham ers and an upright partition producing a steam passage leading from its chamber to one side of the water chamber,v a water outlet from the opposite side'thereof, and an injector nozzle leading from said passage completely across the Water chamber and directed into the outlet; of a nipple removably inserted. in the bottom of the water chamber and forming a water valve seat, a second partition across the steam chamber having a hole smaller When water is ad-- than the steam inlet, a nipple removably inserted in said hole and forming a steam valve seat, valves on the seats both closing downwardly, and a stem leading from the water valvethrough a hole in the main partition to the steam valve.

2. In a feed water heater, the combination with a shell having a cross partition producing superimposed steam and water chambers and an upright partition producing a steam passage leading from its chamber to one side of the water chamber, a water outlet'frorn the opposite side thereof, and an injector nozzle leading from said passage completely across the water chamber and directed into the outlet; of a nipple removabl inserted in the bottom of the Water chamber and "forming a water valve seat, a second partition across the steam chamber having a hole smaller than the steam inlet, a nipple re movably inserted in said holedireetly above the other nipple and forming a steam .valve seat, valves on the seats both closing downwardly, and a stem leading from the water valve through a hole in the main directly in line with the axes of sai to the steam valve.

3. In a feedwater heater, the combination with a shell having a cross partition producmg superimposed steam and water chambers and an upright partition producing a steam (partition nlpples passage leading from its chamber to one side ol' the water chamber, a water outlet from the opposite side thereof, and an injector nozzle leading from said passage completely across the water chamber and directed into the outlet; of a nipple removably inserted in the bottom of the water chamber and forming a water valve seat, a second partition across the steam chamber having a hole smaller than the steam inlet, a nipple removably inserted in said hole directly above the other nipple and forming a steam valve seat, valves on the seats both closing downwardly,

"a hole in the main partition directly in line with the axes of said nipples, a wear nipple removably inserted in said hole and smaller than, either of the others, and a stem leading from the water valve through said wear nipplc to the steam valve.

4. In a feed water heater, the con'ibination with a shell having a cross partition producing steam and water chambers and an upright partition producing a' steam passage leading from its'chamber to one side of the water chamber, a water outlet from the opposite side thereof, and an injector nozzle leading from said passage completely across thewater chamber and directed into the outlet; of a nipple removably inserted in the bottom of the water chan'iber and forming a water valve seat, a second partition across the steam chamber having a hole smaller than the steam inlet, a nipple removably inserted in said hole and forming a steam 'of the water valve when the latter rises from valve seat, valves on the seats both closing downwardly, a. stem integral with the main valve and passing through a hole in the main partition, and'a stem on the steam valve fitting removably over the watervalve-steng so that both valvesjwill be opened by the admissions ofwater.

5, Ina feed Water heater, the combination with a shell having steam and'water chamhers, anin'let to each surrounded by avalve seat, anoutlet from the Water chamber, and

" a nozzle leading from the steam chamber its,

Y having an air-chamber, asurroundmg head,

completely across the water chamber and directed into the Water outlet; of a check valve for the Water inlet comprising a stem andiwings of triangular cross section projecting at the inlet side of the head and haviugpslots between them, and a steam valve oni'its seat adapted to be opened by the stem its seat. In a feed water heater, the combination directed into the water outlet; of check. valve for the water inlet comprising a stem having an air chamber, a surrounding head,

and Wings at the inlet side of the head and. having slots between them, the stem having a reduced inner end projecting into the steam chamber, and a steam valve having a head fitting its seat and a socket 111 its stem fitting removably over thereduced end of the Water-valve stem.

In testimony whereof We sign our names in the presence of two subscrlbing witnesses,

this the 10th day of February, 1909.

JARED SQ SVVEENY. WILLIAM 'W. GRINDLE. Witnesses: i

Jos. VVQ PIERSON, ROSA VoELoKnn.

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