US852516A - Gas-producer. - Google Patents

Description

No. 852,516. PATENTED MAY 7, 1907.

G. H. MORGAN & A. J. GIFFORD.

GAS PRODUGER'.

APPLICATION FILED 4mm; 3', 1904.

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No. 852,516. I PATBNTED MAY 7. 1907.

- 0., H. MORGAN a; A. J. GIFFORD.

GAS PRODUCER.

APPLICATION FILED JUNE-3, 1904.

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UNITED srAr s PATENT OFFICE.

cHA LEsn. Mo1teAN AND ALBERT J. GIFFORD, OFWORCESTER, MASSA- CHUSETTS; s mcirronn ASSIGNOR T SAID MORGAN.

GAS-PRO UCE Letters Patent.

Specification of Application med um '3. 1904. serial no. 210,938.

Patented May 7, 1907.

To all whom it may concern; I Be it knownthat we, CHARLES H. MoaoAN and ALBERT J. GIFFORD, both citizens'of the United States, residing at Worcester, in the by drawings forming a part of the same, in

' which- Figure 1 represents a vertical central sec tionalview of a gas producerembodying our 'claims.

invention, the. section being shown online 1-1 Fig.2. Fig. 2 is a lan view of our improved gas producer, an Fig. 3 is a sectional 'viewof one half ofthe producer on line 3 3, Fig. 1, and Fig. 4'is a vertical sectional view of a portion of the side wall of the gas producer taken on outlets 25. i

Similar reference letters the plane of one of the gas and figures refer Our improved-gas producer belongs to that class of producers known as suction ordown draft producers in which the supply of air for supporting combustion is receivedat the top oft e gas producer chamber and is conducted downward through the fuel, and our invention consists in certain features of construction and novel arrangement-of parts as hereinafter described, and set forth in theanne'x'ed- Referring to the accompanying drawings 1 denotes the heating chamber inclosed by' a side wall2 preferably circular'and constructed of masonry The chamber 1 is'covered by alcircular plate 3 provided-at the-center with a downwardly rojectin'gtube 4, forming a twyer, throug which air is admitted to the'heatin chamber; At the lower end of the tube 4 su port a nozzle 5 extending some distance be ow the lower end of the pipe 4 and preferably covered on its exposed outer v surface bya covering of asbestos 6 to protect it against heat, The nozzle 5 is readily re-,

' movable from theftube 4through the upper producer, andin the presentinstance it isfsulpend. of'the tube to enable ittobe 're laced when-injuredby theexcessive heat of t e gas ported. by a 1l2'a,r'1g'e 7 on' the upper end-.o 1n0z'zle'5which, sts'upon interior shoulder 8- in the tube/1. The top plate 3 is also providedwith .o enings 9 closed by covers 10 to provide fertile admission of fuel and also to 1 permit-thefuel to be properly distributed by pokers or otherwise within the heating chamber 1.

.The cover 3 is provided with an annular concentric flange 11 extending upward. from the cover 3 upon which is supported .a supplemental or top cover 12 provided with a concentric o enmg 13 directly over the-tube" 4 and close by a removable cover14. In-

closing the side wall 2- is a metal shell 15 and concentric with the shell 15 is a similar metal shell 16 having its lower end connected with the shell 15 and its upper end riveted to theannular flange 11; 1 Between the shells 15 and 16 is an inclosed annular space 17 which is closed at the bottom and communicates at the top with the air space 18 between the I outer sand wall 21 retained by a concentric metal shell 22. The several covering'plates 3, 10, 12 and 14 are provided with depending flanges which are embedded insand in order to sand-seal said covers. The side walls of masonry 2 and 19 are supported upon a concentric base wall 23 provided with interior recesses 24 which communicate with the lowerend of the annular space 20. Y

On diametrically opposite sides of the gas producer are outlet gas pipes 25 communicating with the annular space 20 through which gas, as'it is roduced in the chamber 1, is withdrawn, t e movement of the gas being indicated by the arrows26, 26, Figs. 1 and 4, the withdrawal of the gas being effected by suction, either by means of the reciprocating piston of a gas engine, a suction fan,- or other suitable mechanical device. Communicating with the annular space 17 near its lower end,are pipes 27 opening to the outside air,

whereby a current of air is supplied in the direction of the arrows 29 through the annular space 17, airspace 18 and downw ardthroug t e nozzle 5 into the body of the coal, contained in the gas producer chamber 1.

the. annular space 17, and are connected with provided with spraying nozzles 31'by which IOO Wa ter pipes 30 are inserted in the upper end of.

' a source of water-supply,-with their free ends a spray of water is made to impinge against the opposing walls of the space 17 down which the water trickles and is collected at the bottom of the annular space 17 ,as shown at 32, the water accumulating until it reaches the open pipes 27 which then serve as overflow pipes. As the space 17 is situated next the inner wall 2 of the gas producer, it receives more or less radiant heat from the combustion of coal in the gas producer chain:

her 1, and the metal shelf 16 by which the space 1' 7 is separatedfrom the annular space 20 also becomes heated by the upward-flow of heated gas'through the space 20 to the outlet pipes 25. The heatwhich isthus impart.-

ed to the annular space 17 vaporizes acon siderable portion-oi: the water supplied by-the spraying nozzles 31 and the steam thus formed becoming intimately mixed with the ascending current of air is fedtthrough the, nozzle 5 downward into the body of incaridescent coal .in the. chamber 1. The masonry walls surroundingthe gas producing chamberiare supported upon-metallic legs-33 which rest upon the bottom of a pit 34, which is partially filled with water during the opera:

tion of the producer, and from which'ashes as they are formed are raked from the producer. The inner wall 2 of the gas producer is contracted near the top of the chamber 1 to iorni a restricted throat opposite the nozzle 5,

. whose least diameteris ata point 35 a shortdistance above the lower end of the nozzle 5. Below the nozzle 5 the. diameter of the gas producing. chamber radually expands to its normal diameter. y this shape of theinner walls of the producing chamber, the up per end of the chamber becomes slightly hop per shaped to facilitate the feeding and massing of the fuel compactly around the nozzle 5, whilethe'enlargement immediately below the nozzle provides for a freer passage and distribution of air through the centerof the mass of fuel and tends to prevent adherence of clinkers to the walls of the producer.

'We are aware that suction or down draft gas producers are not new and we are also' aware that it is not new to heat-the air supply by which combustion is; maintained in producers of this class, but so far as we are aware the heatingof the air supply has been accomplished by carrying the air supply pipe t rough an auxiliary chamber outside of and entirelyindependent of the gas p'ro-' ducer chamber, said auxiliary chamber being heated by the currentofheated' gas as it was withdrawn ber. a By our 1m roved construction we conduct from 'the gas producer chamthe air supp y to the gas producer chamber through the annular space 17 concentric with the gas producer chamber 1, thereby utilizing the radiant heat from the gas producer chamher and we surround the air-space- 17 with a similar concentric gas space 20, therebylargely increasing the heating surface, due to" the increase in the diameter of the separat- (thing shell 16 and as several water pipes 30/ are conducted to the space 17 on difier'ent sides of the'gas producer, four being employed in the present instance, the ascending current of air through thespace 17 becomes thoroughly impregnated with steam." The upwardly moving steam charged current of air through the space 17 also tends to prevent the over-heating of the side walls of the chamber, thereby obviating the sticking of clinkers to the wall while the body of water collected at 32 in contact with the lower end of the wall 2 tends to reduce the temperatureat the bottom of the gas producerchamber, so that the clinkers passing downward with the body of ashes remain separated and canreadily be withdrawnfrom the water sealed it 34. I i ii" p What we claim as ourinvention and desire tose'cure'by Letters Patent'is:-f

1. In a gas producer, the-combination with a gas producing chamber, of a cover for said chamber, a. depending twyer entering the top ofsaid chamber from said cover, an annular air space, surrounding said chamber, means for admitting air to the lower end'of said, air.

space, means for applying heat to the outer wall of said an space, and meansfor conducting air from the top ofsaid air space to said 2, Ina gas producer, the combination with a gas producing chamber having a. cover, ,of-a twyer depending from said cover and enter ing said chamber, an annular airspace sur-' a gas. pro ucing chamber, of a twyer at the upper end of said chamber, anjannular airspace surrounding said chamber, means for admitting air tofthe lower end of said air 3 space, means for. conductingair from said air space to said. twyer, and means for spraying water into, said air spaces,

4. In a was producer, thejcombination with a gas producing chamber, of an annular air space surrounding said; chamber, means for admitting air to the lower end of said air space, means for conducting. air from the upper end of said air space to the gas producingchamber, said air space havin'ggparallel s de.

walls,"means i or spraying w'ater'against said sidewalls and a water orerflow near "thelower end of said air space. N

5. In a gas producer, the combmatlon with a gas producing chamber, or an annular a r space surrounding. said chamber and having vertical side walls, means for admitting air tothe lower end of said air space, means for conducting a r from the upper end of said air space to the gas producing chamber,

.means for admitting water to the upper end said annular air space is conducted to said gas producing chamber.

7. In a was producer, the combination ynth a gas producing chamber, of an annular air space inclosmg said chamber, an annular gas space lnclosmg said air space, said air and gas spaces having talhc partition between said an and said gas space, meansfor admitting air to said air space at its lower end, means for conducting air from the upper end of said air spaceto the I gas producing chamber, said annular gas space communicating with said gas producing chamber at the lowerend of the chamber, and an outlet pipe for gas leading from said annular gas space.

8. In a as producer, the combination with a gas proc ucing chamber, of a double cover vertical side Walls, a me a for said chamber inclosing an air space, an

opening for the admission of air from said space into said producing chamber, an air space inclosed in the side wall and communieating with the air space in said cover, and an opening into said Wall air space for the admission of air thereto.

9. In a gas producer, a gas producing chamber having its side walls vertically parallel at the lower end of said chamber with a contract-edsection near the upper end of the chamber, by which the diameter of the chamber is reduced, and having its side walls gradually flaring near the upper end of the chamber, a concentric twyer entering the upper end ot'the chamber, a double cover for said chamber inclosing an air space communicating with said twyer, an annular air space surrounding the vertical wall of the c amber communicating with the space between said covers, and an opening at the bot tom of said annular air space for the admission of air.

V Subscribed at Worcester in the county of Worcester and Commonwealth of Massachw setts this twenty seventh day of May 190 CHAS. H. MORGAN. ALBERT J. GIFFORD.

Witnesses:

WILLARD A. WINN, EDWIN 'L. SMITH.

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