US1108633A - Means for heating boiler feed-water. - Google Patents

Description

B. R. SKINNER. MEANS. FOR HEATING BOILER FEED WATER.

APPLIGATIQH EILED MAY 12, 1913-.

1,108,633. I I Patented Aug. 25,1914,

5 SHEETS-SHEET 1.

l n .0 u

WITNESSES:

ATTORNEY.

B. R. SKINNER.

MEANS FOR HEATING BOILER FEED WATER.

APPLICATION FILED MAY 12,1913.

1 1 8,633 Patented. Aug. 25, 1914,,

5 SHEETS-SHEET Z.

MAW,

m. x. ATTORNEY.

B. H. SKINNER.

MEANS FOR HEATING BOILER FEED WATER.

APPLICATION FILED MAY 12,1913.

Patented. Aug. 25, 1914;;

5 SHEETSSHEBT 3.

m m m N 1 IVITNESSES:

ATTORNEY.

B. R. SKINNEH.

MEANS FOR HEATING BOILER FEED WATER.

APPLICATION FILED MAY 12, 1913. 1 1@@ @3gg Patented Aug. 25, 1914- 5 SHEETSSHEET 4.

J0 W1T1VESSES.- 3 INVENTOR:

' ATTORNEY,

B. R. SKINNER.

MEANS FOR HEATING BOILER FEED WATER.

APPLICATION TILED MAY 12,1913. 1 1 9&633 Patented Au 25, 1914.

5 SHEETS SHEET 5.

WITNESSES:

AADOW 7m 25. WW

A TTOlH/EY.

uniaun s'rn 'rns Parana FFCJE.

Bunnie. vs'xrnianir t, or; ABERDEEN, sour}: m nors.

.MEANS FOR HEATING BOILER FEED-WATERi icense.

Specification of Letters Patent. Patented Ail mg. 25, 1914..

Application filed May 12, 1913. Serial No. 787,103.

plying heat to water entering boilers to be urther heatedto a high degree or to be converted into-steam, the invention having reference more'particularly to means for utilizing furnace-draft heat and also spent steamfor heating thefeed Water required by steam boilers, more particularly locomotive boilers.

An object of the invention is to effect a saving of fuel required for heating Water or converting water into steam.

A further object is tosupply the boiler with warm or hot water in order that the fuel consumed in the 'fire-box'of a boiler of a given size will the more readily convert the water'into steam, and therefore in many cases enabling a boiler to make steam freely when it may fail to produce sufiicient steam when fed with cold water.

Another object is to provide means for heating feed water for locomotive boilers that shall be so constructed as to directly utilize some of the exhaust steamfrom the engine cylinders, in order to prevent sharp blasts from the exhaust nozzles and therefore prevent the drawing of unburned fuel from the furnace and filling up the smoke-v box therewith, or throwing hot coals out of the smoke-stack and starting fires therewith along the road. 7

,-A still further object is to'cause the exhaust steam to produce a soft and steady draft on' the fire in the fire-box and advantageously utilize the draft heat, so as to obv tain the most economical results in operation.

The invention consists in-a steam boiler provided with an auxiliary boiler or heater jurious matter from entering the more ex pensive steam boiler, the auxiliary boiler or 11881161 being relativelycheaper and smaller in structure so that it maybe repaired or renewed ultimately at relatively small cost.

The invention further consists in means for conducting exhaust steam to and from theauxiliary boiler or heater, and also novel means for advantageously heating the feed :water on keeping it armin its passage from the boilerfeeder to the auxiliary boiler or heater. The invention consists also in the novel parts'and combinations and arrangements of parts as hereinafterparticularly described andfurther defined in the-accom-- panying claims.

Referring to the drawings, Figurel is a fragmentary right sideelevation of arailway; locomotive having the invention applied thereto as illustrative of oneform of structure for practically carrying out the objects of the invention; F 2 is a transverse section on the plane of the line A A in Fig. 1; Fig. 3 is a fragmentary left side elevation of the locomotive to which the invention is applied; Fig. 4 is a transverse section on the line B B in Fig. 1; Fig. 5 is a fragmentary horizontal section approximately on the line C C in Fig. 3; Fig. 6 is a fragmentary section approximately on the line D D in Fig. 2; Fig. 7 is a fragmentary vertical section approximately on the line E E' in Fig. 2; Figs. 8 and 9 are perspective views-of two of the principal parts of the auxiliary or heating boiler; Fig. 10 is a fragmentary section also'onthe line E E on an enlarged scale; Fig. 11 isa perspective view of another one of the principal parts of the heating boiler; Fig. 12 is a fragmentary section approximately onthe line F F in Fig. 3; Fig. 13 is a fragmentary section approximately on the line G G in Fig. 7;

and Fig. 14 is a'fragmentary section on the line H'H in Fig. 7. I

Similar reference characters inthe various figures of'the drawings indicate corresponding elements or features of construction herein referred to.

A brief description of a well known type of locomotive will suffice for an understanding of the relation of the invention thereto, the numeral l indicating the shell 'of the steam boiler, 2 the front flue sheet, and 3 the tubes or boiler flues, 4 the smoke-box, 5 the smoke-sta'clQ-G the saddle secured to the bottom of the smoke-box, 7 and 8 the cylinders provided respectively with valve chests 9 and 10, 11 the dry pipe or steam pipe in the boiler with which the two branch pipes 12 and 13 are connected for supplying steam to the valve chests, in the present case two extensions 14 and 15 being connected respectively with the branch pipes 12 and 13 and also with steam chambers 16 and 17 that supply the valve chests 9 and 10 with steam for distribution to the cylinders. The saddle 6 has suitable exhaust cavities 18 and 19 therein that receive the exhaust steam from the cylinders through suitable ports, as is understood, and discharge the exhaust steam into an exhaust pipe or nozzle 20 from which the steam escapes through a draft pipe 21 into and throu h the smoke-stack 5. A suitable boiler fee er is provided, in the present case being an injector 22. The locomotive is provided also with an air-pump 23 operated by steam. The foregoing may be of any suitable or desired construction and varied as to details. L

It being understood that the products of combustion pass through the boiler tubes or lines into the smoke-box at high temperature, in order to utilize the heat thereof a novel form of heating boiler is provided and attached to or constructed so as to form a forward extension of the smoke box.

or heating boiler comprises a number of concentrically arranged rlngs for forming two chambers or compartments, there being a middle partitional ring 24 that is cylindrical and preferably equal in diameter to the diameter of the smoke box 4 so as to practically form a forward extension of the latter. The ring 24 has a suitable number of stay-bolt holes 25 and has also an inlet aperture 26 and an outlet aperture 27 arranged in approximately opposite portions thereof, the ring having also a suitable number of. rivet holes 28 and 29 adjacent to the:

opposite ends thereof. The inner ring comprises a cylindrical portion 30 that is less in diameter than the ring 24 and has end portions 31 and 32 formed thereon that extend outward to-theinner side of the ring 24, said end portions having cylindrical extensions'33 and 34 respectively that extend beyond the planes of the ends of the ring 24. The normal upper portion of the inner ring has'an outlet aperture 35 therein, beingin the cylindrical portion 30 which has also a suitablenumber of stay-bolt holes 36.

The extension 33 has rivet holes 37 therein and the extension 34 has rivet holes 38 g therein to receive rivets for securing the inner ring; to the partitional ring. The exand has end portions 44 and 45 that extend inward to the ring 24 to form a steam chamber or compartment, said end portions having cylindrical extensions 46 and 47 respectively that embrace the outer side ofthe ring 24. The cylindrical portion 43 has an aperture 48 in one portion and another aperture 49 in the opposite portion thereof corresponding in position tothe apertures 26 and 27 through which inlet and outlet pipes respectively may be inserted. Thenormal top of the portion 43 has an outlet aperture 50 therein and the cylindrical portion has also an outlet aperture 51 therein in proximityto the aperture 48. The normal bottom of the portion 43 has an aperture 52 therein through whicha blow-0d pipe is received, and the portion 43 has also two inlet apertures 53 and 54 in the bottom portion thereof and'another inlet aperture 55 near 1 the bottom portion. The extensions 46 and As preferably constructed the auxlhary.

ring has a suitable number of holes 60 through which to insert or remove, or upset! the stay-bolts 42, the holes 60 being closed by plugs 61.. v I

In order to economically supply the outer one of the chambers with steam for "assisting to heat the water in the inner one of the chambers twb pipes 62 and 63 are connected to the saddle and also to the cylindrical portion 43 of the outer ring (in the apertures 53 and 54), so as to form communicationwith the steam chamber and the two exhaust cavities 18 and 19 and permit some of the exhaust steam to'be forced by back pressure through the steam chamber. Also inorder to utilize the exhaust steam from the air-pump 23 the exhaust pipe 64 of the air-pump has its beingsecured also inthe Y Ill-(l 1:,1-0 aces tending downward and also rearward and being provided with an upturned nozzle 68 that is arranged adjacent to the exhaust pipe or nozzle 20.

The outer ringof the heating boiler is provided with a suitable packin box 69 (in the aperture 48) through which extends a nipple 70 that is secured to the p'artitional ring 24 (in the aperture 26) so as to conduct water to the inner chamber of the heating boiler. A. valve casing 71 is connected to the outer end of the nipple and has a suitable check valve 72 therein. Preferably a drain pipe 73 is connected to the casing and provided with a valve 74. A branch pipe 7 5 is connected with the injector 22 and also with the check valve casing 71. It being desirable to utilize the exhaust steam to the fullest extent, the branch pipe 75 preferably is provided with a tubular casing 76 which has two heads or eaps 77 and 78 on its ends, the heads being provided with packing boxes 7 9 and 80 respectively through which the branch pipe extends. The branch pipe and its casing being approximately horizontal, the arrangement is such that the branch pipe is in the upper portion of the casing. The lower portion of the head 78 is provided with another packing box 81 through which a steam pipe 82 extends, the steam pipe being connected to the outer ring (in the aperture 51)- so as to conduct exhaust steam from the steam chamber into the casing 76, .the termnial end 83 of the steam pipe extending to the rear portion of the casing in proximity to the head 77, so that steam discharged from the end- 83 will fill the casing and cannot escape until it returns nearly through the casing in contact with the branch pipe 7 An escape pipe 84 is connected with the casing 76 relatively near the forward end thereof, and it extends upward at the rear'of the smoke stack 5. The water of condensa- ,tion is permitted'to escape from the casing 45.

76 through a suitable, drip-valve 85" connected with the under portion of the casing.

the inner chamber'to the steam boiler below the level of the water carried therein.

Preferably another communication is provided between the upper portion ofthe inner chamber of the heating boiler and the upper portion of the steam boiler, such communication preferably comprising a pipe 88 that is connected to the cylindrical portion 30 (in the aperture 35) and extends through-the in terior of the smoke box on one side of the lift pipe 21 and back to the frontflue sheet 2 to which the pipe is connected, so that this communication shall be above the water'level and insure equalization of pressure in both through which a blow-off: pipe 90 extends to" the under portion of the partitional ring 24 in which the pipe is secured, the pipe being provided with a stop-cock 91, to permitde posits from the feed water to be blown out and therefore prevent it from entering the steam boiler. g

A suitable smoke box front 92 is secured to the extension 34 of the inner ring by means of rivets 93 and is provided with a door 94, the lower portion of the front being provided with a gate or valve 95 through which to remove cinders or dead sparks from the smoke box into a suitably supported hopper 96.

It will be understood that in the interest of clearness of description the boiler and able coverings will be provided wherever f found desirable.

In practical use the greater proportion of exhaust steam passes out the smoke stack and as usual produces the requisite draft for the fire whereby to convert the water into steam in the boiler, the product of combustion being drawn into the smoke box and consequently into contact with the inner ring of the water heating boiler, the degree of heat, however, being less when the engines are not in operation. The exhaust steam passing through the pipes 62 and 63 and also through the pipe 64 heats the partitional ring 24 and therefore assists in heating the water in the water-chamber. The steam escapin from the nozzle 68 produces a continuous raft on the fire, acting as a blower so that the intermittent blasts from the pipe 20 may be softened and therefore not be liable to tear up the fire as often occurs when excessively small exhaust noz-.

zles are used. In case the locomotive is at.

rest the air-pump may beworking so that the exhaust steam therefrom contributes toward heating the-feed water in case the injector is Working. When the locomotive is in operation and the injector is working as is customary the heating process of'the feed water begins in the branch pipe 7 5,.or under some conditions at least is prevented from being cooled as it comes from the injector.

The water enters the inner chamber, as will be seen, belowwthe level of the water in the.

chamber it will be understood that the steam escapes through the pipe 88 into the steam boiler.

-Having thus described the invention, What is claimed as new is' 1. Means for heating feed water including a heating boiler comprising three concentrically arranged rings secured together to form two annular chambers, and staybolts secured to the two inner onesof the rings.

2. Means'for heating feed water includ ing a heating boiler comprising a partitional ring, an inner ring having two end portions secured to the inner side of the partitional ring, and an outer ring having two end portions secured to the outer side of the partitional ring.

3. A steam-boiler provided with an annular heating boiler having two concentrically arranged chambers, the outer one of the chambers having an inlet and also an outlet, and two conduits connected with the inner chamber and also with the steam-boiler on opposite sides'respectively of a horizontal plane.

4:. Means for heating feed water including a water-chamber, a steam-chamber having an inlet and an outlet, a casing, a feed pipe extending through the casing to the waterchamber, and a steam-pipe connected with the steamchamber and extending into the casing through one end and nearly to the opposite end thereof.

5. Means for heating feed water including a smoke-box to receive heat and having a water-heating extension thereon provided with two chambers, one chamber being enclrcled by'the other to receive the feed water,

an inlet for conducting steam into the encircling chamber, a front mounted on the water-heating extension, and a door mounted on the front.

6. A steam-boiler provided with a smokebox having an annular heating boiler thereon, the heating boiler having an inner chamber and also an outer chamber extending,

about the inner chamber, a conduit connected with the inner chamber and also with the the inner chamber having communication with the steam-boiler both below and above the normal water level of the steam-boiler, and a. steam-inlet pipe connected'with the outer chamber.

8. Means for heating feed water including a water-heating boiler having two annular chambers therein, one of the chambers extending about the other, an inlet conduit extending through the outer one and having communication with the inner. one of the chambers, an outlet conduit having c0mmunication with the inner one of the chambers, an inlet conduit having communication with the outer one of the chambers, and an outlet conduit having communication with the outer one of the chambers.

-9. In means for heating feed water, the combination of a plurality of rings connected together to form two concentrically arranged chambers, the outer ring having two packing boxes therein, an inlet pipe and an outlet pipe connected with the inner one of the two chambers and extending respectively through the two packing boxes, and an inlet pipe and an outlet conduit connected with the outer chamber.

10. In means for heating boiler feed water, the combination with a steam-boiler, of a smoke-box having an extension on its end provided on its inner side with a water; 95 chamber and on its outer side with a steamchamber, an inlet pipe extending through the steam-chamber to the water-chamber, a conduit connected with the water-chamber and the steam-boiler, and. an exhaust pipe 100 connected with the steam-chamber and extending into the smoke-box.

11. I11 means for heating boiler feed water, the combination of a smoke-box having a water-chamber in its interior and a 105 steam-chamber on its exterior, a casing, a feed-pipe extending through the casing and also through the steam-chamber. to the water-chamber, a steam-pipe connected with the steam-chamber and extending into the casing, an outlet pipe connected with the water-chamber, a supply pipe connected with the steam-chamber, and an exhaust pipe connected with the steam-chamber.

12. In means for heating boiler feed water, a heatingboiler comprising three concentrically arran ed rings, the inner and the outer ones of tl rings having end portions that extend'to and are secured to the middle one of the rings whereby two. con- 1:0 centrieally arranged annularchambers are formed, a supply pipe extending through the outer one to the inner one of the charihers, means for heating the supply'pipe, an

outlet pipe connected with the inner one of the chambers, a supply pipe connected with the lower portion of the outer one of the chambers, and an exhanst pipe connected with the upper portion of the outer one of the chambers.

inmates and the water-chamber, an exhaust steampipe connected with the pump and the steamchamber, an outlet pipe connected with the steamchamber, and a conduit connected with the water-chamber and the steamboiler.

1% In means for heating feed water, a.

heating boiler comprising'three concentrically arranged rings, each one exceptingv the middle one of therings having end por-- tions thereon-that extend to the middle one of the rings, each one of the end portions having a cylindrical extensionthereon that is secured to said middle ring, the outer (one of the rings having a series of apertures therein, a series of stay-bolts extending ra-' dially from the inner oneto the middle one of the rings and secured thereto. in alinement with the apertures respectively, and a series of plugs inserted in the apertures respectively.

15. In means for heating feed water,-the

combination with a steam-boiler, ofa smoke-' box on the front end of the boiler having an extension thereon provided with an an nular water-chamber and also a steamchamber extending about the wate1' chamher, the inner wall of the water-chamber.

water, the combination with a steam-boiler,

and a smoke-box on the front end of the stcam-boiler, of an annular water-heating.

boiler on the front: end of the smoke-box and having a water-chamber and also a steam-chamber extending about the waterchambcr, a front closure mounted on the front end of the water-heating boiler, a door mounted on the front closure, a watersupply pipe connected with'the water-chamber, a conduit connected with the waterchamber and the steam-boilerya steam-supply pipe connected with the steam-chamber, and an exhaust pipe connected with the steam-chamber and extending 'into the Smoke-box.

17 In means for heating feed water, the combination with a steam-boile and a smoke-box on the front end oft e steamboilcr, of a water-heating boiler on the front end of the smoke-box and having two concentrically arranged annular chambers therein, one of the chambers extending about the other, awater-inlet pipe connected with the inner one of the chambers, a steam-inlet pipe'and also an escape pipe connected with the outer one of the chambers, a water-pipe connected with the inner one of the chambersand extending through the outer one of the chambersand past the exterior of the smoke-box to the steam-boiler and connected with the latter, and an'equal.- izing pipe connected with the inner one of the chambers. and; also with the steamboiler. .v v

18. In means for heating feed water, a

heating boiler comprising three upright and concentrically arranged rings connected together to form two annular chambers, one

chamber extending about the other, an inlet pipe and an. outlet pipe connected to-approximately opposite portions *irespeetively of-the middle one of the rings and extending through the outer chamber and the outer one of the rings,a steam-inlet pipe connected to the under portion of the outer one of the rings,'an escape pipe connectedv to theupper portion of the outer one of the rings, a packmg box secured in the under-portionot the outer one of the rings, and'a blow-off pipe connected to the middle one of the rings and extending through the outer one of the chambers and also through the packing box.

19. In means for heating feed water, a Watenheatingboiler comprising an annular structure having two chambers therein extending about a horizontal axis, one of the chambers extending about the other, an inlet pipe' and an outlet pipe extending through the outer one and forming communication withthe inner one of the chain ers above the plane of the horizontal axis, a

plurality of steam-inlets forming communication with the lower portion of the outer cured to'the smoke-box and having ex-o 'haust-steam cavities therein, 01'' a waterheating boiler on the front. end of the smoke-box and having a water-chamber and also a steam-chamber therein, conduits connected with the exhaust cavities respectively and also with, the steam-chamber, an escape pipe connected with the steam-chamber and its extending intothe smoke-box and upward therein, a pipe'connected with the pump and the steam-chamber, a branch pipe connected with the-boiler feeder and the Waterchamber and provided with a casing, a pipe connected with the steam-chamber and the, casing, a pipe connected with the wateruprightly. on the saddle and having com munication with" the two exhaust cavities,

of a water heating boiler secured to the frontend of the smokebox and having two concentrically arranged annular chambers therein, one of the chambers extending about the other, two pipes connected respectively with the two exhaust cavities and also with the lower portion of the outer one of' the chambers, an escape pipe connected with the upper portion of the outer one of the chambers and extending into the smoke-box to the exhaust pipe, the end of the escape pipe being turned upward, an inlet pipe connected-With the inner one of the chambers, and anoutlet pipe connected with the inner one of the chambers and also with the steam-boiler.

22. In means for heating feed water, the combination with a steam-boiler, a smokebox on the front end of the steam-boiler, a saddle secured to the lower portion of the smoke-box and having an exhaust-steam passage therein, and a water heating boiler ,on the front of the smoke box and having two concentrically arranged annular chambers therein extending about the horizontal axis of the smoke-box, one of the chambers extending about the other, of a conduit forming communication with the exhauststeam passage and the lower portion of the outer one of the chambers, an escape pipe forming communication with the upper portion of the outer one of the chambers, an inlet pipe and an outlet pipe forming communication with the inner one of the chambers approximately on the plane of said axis, the outlet pipe forming communication With the steam-boiler, and a pipe extending through the smoke-box and connected with the upper portions of the steamboiler and the inner one of the chambers.

In'testimony whereof, I afix my signature in presence of two Witnesses.

- BURR R. SKINNER.

"Witnesses I I K. N. OHLHoUsE, W. W.'BAssE'1'r.

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