US620566A - Steam-boiler and furnace - Google Patents

Description

No. 6205B6. Patented Mar. 7, |899. G. L. BURKETT.

STEAM BUILER AND FURNACE.

(Application led July 7, 1897.)

2 Sheets--Sheet I.

(No Model.)

INI/ENTOR.

WITNESSES:

ATTORNEY.

No. 620,566. Patented Mar. 7, |899. G. L. BURKETT. STEAM BOILER AND FUBNAGE.

(Applicatian sled July '7,l 1897.)

2 Sheets-Sheet 2.

(No Model.)

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UNITED STATES- PATENT OFFICE.

GEORGE LUKE BURKETT, OE CHICAGO, ILLINOIS.

STEAM-BOILER AND FU RNACE.

SPECIFICATION forming part of Letters Patent No. 620,566, dated March 7, 1899.

Application filed .Tuly 7,1897. Serial No. 643,772. (No model.)

To all whom it may concern,.-

Be it known that I, GEORGE LUKE BURKETT, i

- specication.

My invention relates to certain improvementsinwater-tubeboilers andfurnacestherefor, as pointed out in the following specification and claims and illustrated in the accompanying drawings; and it consists of the peculiar construction and novel arrangement and combination of parts hereinafter described.

In the drawings, Figure lis a side sectional view through brick wall. Fig. 2 is a front view, brick front being removed; and Fig. 3 is a back View, brick wall being removed.

Similar letters of reference indicate like parts in the various figures The letters A A represent steam-drums, B and B water-drums, and C the water-tubes. The water-tubes connect the drums B and B. The drums B are arranged one above the other in front of boiler, and the drums B' are arrangedin like manner in the rear. The steamdrums A A extend from front to rear; but the drums B and B extend transversely or from side to side. The upper rear drum B' is connected with the steam-drums A A by the tubes F F', and the upper front drum B is connected with the steam-drums A A by the water-legs G G. The water-level in the drums A A isA represented by the dotted line N. The dotted circles on drums B in Fig. 2 show the location of the water-tubes where connected with the drums and how they are spaced or distanced. Each drum B and B is provided with a blow-o pipe I, and doors II and H are made in the brick walls D D', and each drum is provided with a manhole M to facilitate the cleansing of the drums and tubes. A fire-brick arch E deflects the ames, and they pass to the lowest bank of watertubes C, a brick covering L over a portion of them arresting the passage of the liames until theend of the lire-brick covering is reached, when they pass to the next higher bank of water-tubes, and so on through the whole series.

The steam and water drums A A are connected by steam-pipes provided with an ordinary valve, as shown in Fig. 2. The feedwater is provided through the feed-pipe K to the lowest water-drum B, as shown in Fig. l, and the steam ascending keeps up a rapid circulation throughout the system of tubes, the water-tubes C being arranged on an incline. By supplying the feed-water to lower drum B the circulation will keep the tubes clean, the sedimentary matter being deposited in drums B and B for the purpose provided.

My main object is to provide a boiler with means for taking care of the sedimentary matter which is contained in all feed-waters to a greater or less extent.

I claim my transverse drums wherein there will be no circulation excepting such as is caused by the passage of steam from one bank of tubes to the other in ascending and that the sedimentary matter will be thrown off and left in the drums,where suitable provision is made by one or more blow-offs in each drum, as indicated in the drawings by the letters I I I and I I', and in case of scale it can be dealt with in the drum,whereas it is almost an impossibility to get it out of a` tube.

The circulation in the three lower banks of tubes will keep them clean, and as that is the most effective heatingesurface in the boiler the result is a very economical boiler.

By my construction I get a long distance for the gases to travel over, the absorbent heating-surface thereby getting the greatest possible economy from every thermal unit of heat produced in the fire-box, and the gases ascending continually the result is a greater eiiiciency.

I do not provide circulating-tubes between my lower transverse drums. Hence my tubes are kept perfectly clean by the steam forced through them. In other boilers while some tubes are kept clean by the rapid circulation many become choked up with dirt. In boil= ers of the semihoriz'ontal type the'circulation is cut off in the upper tubes and they make up with dirt. In my boiler the precipitation will take place and the sediment be thrown olf in the lower drums before reaching the upper tubes, thereby keeping the tubes clean.

Longitudinal drums are shown in the drawings for steam-separating and have a reserve of water should anything happen to feed apia pliances, the result being a safe boiler and one not very liable to be burned.

Cleaning-doors are provided on level of blow-o in front of each transverse drum for purpose of blowing oft the tubes. In my boiler it is obvious the changing of a bad tube is rapidly accomplished. The tubes are to be staggered, and any tube can be taken out Without destroying another tube, something which cannot be done in all types of watertube boilers, as the tubes are so distanced that a tube cannot be passed through.

An important object of my invention is the securing of an unvarying water-level and a boiler where every thermal unit of heat can be utilized in economical work.

Three or more transverse drums may be used in my system of water-tube boilers and one or more steam and Water separating drums to suit the size of boiler required.

The invention consists in the arrangement of drums, tubes, feed-pipes, circulation, and means for cleaning, as herein specified and substantially as shown in the drawings.

With this description of my invention,what I claim is l. In a water-tube boiler, the combination of the five transverse water-drums, B, B, B and B', B', and the two steam and water separating drums A, A, located above the said Water-drums and crossing them at right angles, pipes connecting the steam-drums a valve on same, tubes F connecting the steam drums and the upper water-drum B', waterlegs G and G' connecting the steam-drums and the upper water-drum B, the series of inclined water-tubes C Connecting the front and back transverse water-drums B, B, B and B', B', the feed-pipe K entering, and supplying water to, the lowest water-drum B, and the blow-oft pipes I, I, I and I', I', substantially as shown and described and for the purposes specied.

2. A water-tube boiler, consisting of one or more elevated horizontal steam and water separating drums extending longitudinally from front to rear and three or more horizontal water-drums extending transversely across the furnace structure,from side to side, four semihorizontal inclined banks of watertubes connecting said water-drums and extending from front to rear drums, tubes and water-legs connecting the steam and water separating drum or drums in front and rear with said water-dru ms, a manhole and a blow- OEE pipe for each of said water-drums and a feed-pipe connected with the lowest water drum to send the supply of water upwardly,

substantially as shown and described.

GEORGE LUKE BURKETT.

Witnesses:

CHARLES MAYO, J. H. PERKINS.

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