US514841A

US514841A - taylor

Info

Publication number: US514841A
Authority: US
Publication date: 1894-02-13
Anticipated expiration: 1911-02-13

Description

8 Sheets-Sheet 1.

Patented Feb. 13,1894;

G.H.'TAYLOR. STEAM BOILER.

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G. H. TAYLOR. STEAM BOILER.

No. 514,841. Patented Feb. 13, 1894.

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Patented Feb. 13, 1894.

G. H. TAYL STEAM BOIL (No Model.)

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UNITED STATES PATENT OFFICE.

GEORGE HENRY TAYLOR, OF LONDON, ASSIGNOR TO WILHELM OTTO AXEL LOWE, OF LIVERPOOL, ENGLAND.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 514,841, dated February 13, 1894.

Application filed August 30, 1893- Serial No. 484,375- (No model.) Patented in England May 23, 1392, No. 91772.

To all whom it may concern.-

Be it known that I, GEORGE HENRY TAY- LOR, a subject of the Queen of England, residing at London, England, have invented certain new and useful Improvements in Steam- Boilers, (forwhichl have obtained LettersPatent of Great Britain, No. 9,772, dated May 23, 1892,) of which the following is a specification.

This invention relates to water tube steam boilers of the class in which a gas producer separate from the combustion chamber is employed.

The invention will be best understood by reference to the accompanying drawings in which Figure 1 is a longitudinal vertical section of a water-tube boiler constructed according to this invention. Fig. 2 is a sectional plan taken upon line zz of Fig. 1. Fig. 3is a vertical section of a boiler similar to that shown in Fig. 1, but witha modified arrangement of the passages conducting the gases from the producer to the combustion chamber. Fig. 4 is a sectional plan upon line y-y of Fig. 3, and Fig. 5 a similar View upon line 0cw of Fig. 3. Fig. 6 is a front elevation of the boiler constructed according either to Figs. 1 or 3. Fig. 7 is a vertical longitudinal section upon line uu of Fig. 9 of 'a boiler similar to that previously described, but with a modification in the gas producer. Fig. Sis asection on line ww of Fig. 7, and Fig. 9 is a Vertical cross section upon line o-o of Fig. 7.

Like letters indicate like parts throughout the drawings.

Referring first to Figs. 1 and 2 A represents a water tube boiler of any well known construction set in brick-work or masonry in the usual manner the course of the flames and heated gases being indicated by the arrows.

A is the receptacle for steam and A is the, flue of the chimney.

B represents the combustion chamber in which the gas from the producer and atmospheric air are mixed, and in which the boiler A is located.

the fire.

E is an injector for forcing atmospheric air and steam into ash-pit or space D below the fire bars so that the apparatus may be worked by forced draft and inferior fuel used.

F is a bridge forming the back wall of the gas producer 0 the gases escaping only over the top of the wall into the curved flue or passage G whence they escape by the tubes G into the combustion chamber B. The channel G is in a tortuous form to give time for the gases from the producer becoming 7o fixed before they are mixed with the atmospheric air. The air enters preferably from the front of the boiler through grids H and channels H rising up through the hollow interior of the wall Fand passing down the cen- 7 5 ter compartment thereof into the space H in the hollow Wall I forming the front of the combustion chamber l3. From the chamber H the air which has become highly heated in its tortuous passage through the heated walls escapes through the tubes H into the combustion chamber B mixing with the gas from the producer entering the combustion chamber by the pipes G',the pipes H being placed among the pipes G to facilitate the mixing of the "gas and air; alarge number of each of these tubes is employed. Another supply of atmospheric air under pressure or not and mixed with steam if desired may be introduced into the bottom of the combustion 9o chamber B by tubes J. v

The action of this apparatus is as follows: The fuel is placed in the producer O upon the fire-bars D and lighted, air to promote combustion being supplied by the blower E and passing up between the fire bars D into the producer, the gas passes from the producer 0 over the wall F into the tortuous channel G and by the pipes G into the combustion chamber B where it meets the atmospheric air already highly heated in passing through the channel H and entering the combustion chamber through the pipes H The mingled gas and air as a mass of flame passes among the tubes of the boiler in the manner that will be well understood and is indicated by the arrows, and so to the flue A In the modification shown in Figs. 3, 4 and 5 the general construction and principles of operation are the same, but the flue G is extended backward above the gas producer and the hollow wall F and tubes G and II are placed nearly vertically and directly underneath the front portion of the boiler tubes. The operation will be understood from the description already given of Figs. 1 and 2. The blowerE can be supplied with steam from the boiler by the pipe Eor in any other convenient manner.

The boiler illustrated in Figs. 7, 8 and 9 is similar in its construction and operation to those already described, but instead of the gas producer being formed in the brick-setting of the boiler it is placed in a water-containing shell the interior of which is connected with the interior of the boiler tubes. The gas producer 0 is surrounded by a shell K connected by the branch K with the lowest row of boiler tubes, the space K being filled with water. The gas producer 0 is supplied with fuel through the hopper 0 controlled by a sliding door C as before and the fire being stirred or clinkers removed through the door 0 at the bottom of the chamber. Or a second door may be provided in the hopper C in line with the passage leading to the chamber 0 to enable a poker to be introduced through hopper C From the interior of the gas producerC the gases pass by the flue G into the combustion chamber B and after circulating among the boiler tubes as already described they escape to the chimney by a H no A formed in any convenient place in the boiler setting. Air to promote combustion is supplied to the ash-pit or space D underneath the fire-bars by a blower as before it forced draft is to be used or in the absence of forced draft the air may be freely admitted to the space D through a suitable opening, grid or the like, a method of working which may be adopted in the first described arrangement if desired in preference to the forced draft. Afurther supply of air is admitted to the combustion chamber B by the passages II formed in the brick setting of the boiler, these passages terminating in the hollow wall I where the air becomes highly heated and delivering the air by the tubes or openings H preferably placed just over the openings G from the gas producer so that the air and gas become well mixed. The air entering by the passages II may be propelled by a blower as previously described.

In all these arrangements it will be seen that an independent gas producer located within the setting of the boiler is employed delivering gas which meets currents of atmospheric air so that excessive combustion of gases is occasioned all around the water tubes of the boiler.

I claim- 1. The combination with a wator-tube boiler, of an independent gas producer located in the boiler-setting and having a wall which incloses and covers the same, said wall hav ing a tlue leading to the combustion-chamber; substantially as described.

2. The combination with a water tube boiler having an independent gas producer located in the boiler setting of an inclosed gas-fixing chamber with a hollow wall on each side of it over the first of which the gases pass from the producer and through the second of which they pass by tubes into the combustion chamher.

3. The combination with a water tube boiler having an independent gas producer located in the boiler setting of a gas-chamber having a hollow wall from which the air to support combustion enters and having a hollow wall through which the air passes to the combustion chamber while the gas passes by means of tubes into the combustion chamber through the hollow wall but without entering the same.

4.. The combination with a boiler, of an independent inclosed gas producer located in the boiler setting, a closed gas-chamber, a hollow wall separating it from the combustion-chamber, tubes leading the gas through said wall, and exit openings for the air from said wall; substantially as described.

5. The combination with a boiler, of an independent inclosed gas producer located in the boiler setting, a closed gas chamber having a front hollow air-heating wall provided with passages leading therefrom to a hollow wall separating it from the combustion-chamber, tubes leading the gas through said wall, and exit openings for the air from said wall; substantially as described.

6. The combination with a water-tube boiler, of a water-jacketed gas-producer, and a tube connecting the water jacket with the water tubes; substantially as described.

7. In a water tube boiler the combination with the water tubes and a water-jacketed gas-producer-furuace of side pipes or passages carried in the side walls of the apparatus and air passages also carried in the side walls of the apparatus and combined and operating as set forth.

8. The combination with a water-tube boiler, of a gas producer, having a water jacket which incloses and covers the same, a combustionchamber below the water tubes, and a flue In testimony whereof I have hereto set my leading through said water-jacket to the comhand in the presence of the two subscribing I0 bustion chamber; substantially as described. witnesses.

9. The combination with a water-tube boiler,

5 of a water-jacketed gas producer, a fixing GEORGE HENRY TAYLOR chamber between the gas-producer and the Witnesses: bridge-wall, and a cornbusti0nchan1ber below ALFRED J. BOULT,

the water tubes; substantially as described. 7 HARRY'B; BRIDGE.