US1109342A

US1109342A - System of burning liquid fuel.

Info

Publication number: US1109342A
Application number: US77278613A
Authority: US
Inventors: Andrew Laing
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-06-10
Filing date: 1913-06-10
Publication date: 1914-09-01
Anticipated expiration: 1931-09-01

Description

A. LAING.

SYSTEM 0F BURNING LIQUID FUEL.

APPLICATION FILED JUNE l0; 1913.

y Patented Sept. 1,1914.

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A. LAING.

SYSTEM OF BURNING LIQUID FUEL. APPLIGATION IL'BD JUNE 10,1913.

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A. LAING.

SYSTEM 0F BURNINGLIQUID FUEL.

APPLICATION FILED JUNE 10, 1913.

Patented sept. 1, 1914.

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A. LAING.

SYSTEM 0F BURNING LIQUID FUEL. n

APPLIGATION FILED JUNE 10,1913.

Patented Sept. 1, 1914.

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Patented Sept. 1, A1914.

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A. LAING.

.SYSTEM 0F BURNING LIQUID FUEL.

APPLIGATION FILED JUNE 10, 1913.

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:ANDREW LAING, OF NEWCASTLE-UPON-TYNE, ENGLAND.

SYSTEM or BUnNrNG LIQUID FUEL.

`Sp-eciication of Lntters Patent.

Patented Sept. 1, 1914.

appneauoafuea :rune 1o, 191s. serial No. 772,756.

To all'whom 'it may concern.'

Be it known that I, ANDREW Lame, a subject of the King of Great Britain, residing in Nevvcastle-upon-Tyne, England, (Whose post-oilice address is Osborne road, Newcastle-upon-Tyne, in the county of Northumberland, England,) have in'- vented a certain new land useful Improved System of Burning Li uid Fuel, of which the following is a speci cation. v

According to this invention liquid fuel, such as oil is delivered to the burners of oilfired locomotive or other boilers at a high pressure by means of fuel pumps, and the atomization of the oil thereby ei'ected Without the use of steam jets and consequent liability to deterioration of the tire box plates and other parts of the combustion chamber. Prior to combustion the oil passes through a heater and a filter and thence to the burners through a distributing valve boX which is fitted with an emergency cock whereby all the oil burners, with the exception of a lighting-up burner, can immediately be put out of action. The emergency cock is designed so that when the oil supply is cut oif from the burners steam is admitted to the pipes leading to the burners which have been shut oif and the oil in these pipes and burners blown into the furnace, thus preventing any possibilty of oil carbonizing in the burners and clogging Same. Vhen the main burners are cut oft it is still necessary to supply steam to the heater, although in reduced quantity, in order that the oil required for the lighting-up burner may be heated suiiiciently to enable the burner to burn eiiiciently and without smoke, and to meet this requirement the lever operating the shut of valve simultaneously actuates a steam regulating cock, the arrangement be ing such that when all the burners are alight this cock is fully open to steam, while When the main burners Aare out of action the regulating cock cuts o'l" the mainsteam supply but passes steam to the heater in suicient amount to heat the oil required for the supply of the lighting-up burner -or other burners still in operation. These and other features of the improved system will be more speciiically described with reference to the accompanying' drawings, wherein- Figure l is a front elevation showing the general arrangement; Fig. 2 is a side eleva-i tion of the same; Fig. 3 a longitudinal sec tion of a furnace; Fig. 3 a similar view but showing a different disposition of the. fuel burners; Figs. 4 and 5 an .elevation anda lan View respectively on an enlarged scale of the distributing valve box. Fig. 6 is a sectional elevat-ion, and Fig. 7 is a plan view, of one arrangement of distributing boX, 'on a larger scale.

In the apparatus shown the furnace or tire bok 1, which together with the bridge 2 has 'a lining 3 of refractory material, is provided With a number of oil burners (three burners, indicated 'at 4, 5, 6, are shown in the drawings), to which the oil is supplied through a distributing box 7 from a pipe 8. The distributing box is provided With an emergency cock or valve 9 which, in one position, admits oil to the burners 5 and G,

while in another position it cuts oif the oil supply from these burners and at the same time admits steam through the valves 5b, Gb to the burners 5, 6, thereby blowing out any oil and preventing carbonization of the same. The steam is also delivered to the blow-through cocks 4a, 5l1 and 6 by pipe 10 which branches off from the steam supply pipe 11 to the oil pump 12, and these cocks are iittedso that steam can be admitted to any one burner for the purpose of clearing that particular burner` of oil, independently of the remaining burners. The oil fuel pump draws oil from a tank or reservoir which may be situated in the engine tender and connected with the suction inlet of the pump by a flexible pipe and delivers the oil through pipe 13 to a heater 14 and thence through a iilter 15 to thesupply pipe leading to the distributing box. team 1s supplied to the pump 12 through pipe 11 from which` a branch leads to the heater 14: through a regulating cock or valve 17, which regulating cock or valve is actuated by lever 1S simultaneously with the emergency cock 9 so that when the oil supply is cut olf from burners 5 and G the steam supply to the heater is correspondingly reduced.

In addition to the valves hereinbefore mentioned the various parts of the apparatus are provided with `manually operated regulating or shut off valves, and one or more pressure gages are also fitted to show the oil pressure at one or more points of the installation.

The distributing box 7, in addition to delivery to the burners, also delivers through a by-p'ass valve 1.9 to a pipe 2O leading to tain a circulationof oil when the emergency cock is turned to cut off the main burners 5 and 6. This by-pass, 'like the burners themselves, trolling theviow of oil therethrough. One arrangement of the distributing box or valve arranged to distribute to three burners is shown on a larger scale in Figs. 6 and'?. 'Ihe valve box body is divided into two portions 25a and 25b by the emergency valve 9, the portion 25b being connected to the burners 5 and 6 adapted to be cut off lsimultaneously by the emergency valve 9. The portion 25a is connected'by the flange joint 26 with the oil supply pipe 8. A main oil channel 27 runs throughout the valve box and, is connected by suitable ports to the supply pipes 4, 5c and 6 leading to the burners 4, 5 and 6; valves 4b, 5b and 6b for independent regulation of the flow through these pipes being fitted in the box. A port in the channel 27 valso communicates with the pipe 19 adapted to permit of a continuous circulation of oil through the pump ,when the burners are cut 0H, and a valve 28 is provided for independently cutting off or regulating the flow through said pipe. The burner 4 being the pilot or station burner, adapted to be constantly alight, and the pipe 19 are connected to part 25a of the valve box which is always in connection'with the oil supply while the burners 5 and 6, adapted to be cut ofi on an emergency simultaneously, are connected to the part 25". The emergency valve 9 is arranged so that it can close the main oil channel 27 and cut off the supply of oil to the part 25b ofthe valve box. A steam supply. pipe 29 is also connected to valve 9 bythe port 30 which is also provided with a port 31, the'ports being arranged in such a manner that when the valve 9 is partially turned steam is directed therethrough into the part 25b of the valve box and so to the burners to blow out any oil remaining therein. A further movement of the valve 9 cuts ofi both oil and steam. Independent -steam connections are also made through the valve box to the burner supply pipes and are provided with cocks 4, 5 and 6B- so that steam may be blown through each burner independently of the others. A thermometer 32 may be provided on the valve box to indicate the temperature of the oil.

In the furnace illustrated in Fig. 3, the burners are fitted in the front plateof the fire box, the burner nozzles projecting inwardly within tubes or sleeves 21 extending through the water space included between' fire box 1 and the the front plate.of the boiler plate 22, the nozzle being preferably given a slightly downward inclination as shown. Air is supplied for ,the combustion of the fuel both through the tubes 21 and also through

air inlets

23, 24 in the outer and inner walls of the re box, which are is fitted with a regulator conliquid fuel burners,

'controlled by dampers 23a and 24Et tively.

In the modified construction of furnace shown in Fig. 3*l the burners project through sleeves or tubes 21*l equivalent to the sleeves 21 but extending through the inner or forward wall of the fire box so that the oil and products of combustion are projected rearwardly under the bridge 3 toward the front end of the fire box.

If more convenient the burners may be introduced at the sides ofthe {ire-box instead of the front or back ends, or they may ge fitted in any two or more wallsof the fire- Having thus described the nature of this invention and the best means I know of carrying the same into practical effect, I claim 1. A liquid fuel burning system comprisingr a combustion chamber, a Iplurality 'of liquid fuel burners, means adapted to feed the liquid fuel to said burners, a valve box distributing the fuel tosaid burners, means therein for regulating each burner independently and means for simultaneously cutting out a predetermined number of burners. substantially as described.

2. A liquid fuel burning system comprising a combustion chamber, a plurality of liquid fuel burners, a pump adapted to force the liquid fuel to said burners and to spray it therein, a valve box distributing the fuel to said burners, means therein for regulating each burner independently and meansY for simultaneously cutting out a predetermined number of burners, substantially as described.

3. A liquid fuel burning system comprising a combustion chamber, a plurality of liquid fuel burners, means adapted tofeed the fuel to said burners, a distributing valve box, and means in said distributing valve box for blowing steam through said burners when they are cut-out, substantially as described.

4. A liquid fuel burning system comprising a combustion chamber, a plurality of liquid fuel'burners, means adapted to feed the said burners, means therein for regulating each burner independently, means for simultaneously cutting out a predetermined number of burners, and means when such burners are out out for blowing steam therethrough, substantially as described.

5. A liquid fuel burning system compris- ,ing a combustion chamber, a plurality of means adapted to feed and distribute the fuel to said burners, a steam heated fuel heater, and means for reducing the steam passed through the heater as the burners are cut off, substantially as described.

6. A liquid fuel burning system comprising a combustion chamber, va plurality of respecthe liquid fuel to said burners, a steam heated liquid fuel heater through which the fuel passes, a valve box` distributing the fuel to the burners, and means for simultaneously diminishing the supply of steam to the fuel heater, substantially as described. f

7. A liquidfuel burning system comprising a combustion chamber, a pluralit u liquid fuel burners, a pump adapted to orce the fuel to said burners, a valve box'dis'- tributing the fuel to said burners and means governed from said distributing box whereby a circulation of fuel may be maintained through the pump when the burners are cut off, substantlally as described.

8. A liquid fuel burning system compris-v ing a combustion chamber, a Ipluralit of liquid fuel burners, a pump adapted to orce the fuel to said burners, a valve box distributing the fuel tov said burners, means therein' for cutting out a predetermined number of burners, and means governed from said distributing boxpwhereby a circulation 'of fuel may be maintained through the iuxnpwhen the burners are cut off, substan ially asdescrifbed. 1 5

9. A liquid fuel 'burning system comprising a combustion chamber, aplur'alit of liquid fuel burners, a pump adapted to orce the fuel to said burnersand to spray it therein,` a steam heated fuel heater, a valve box adapted to distribute the fuel tothe burnersl.

a valve therein adapted to cut oif a predetermined number of burners and simultaneously admit steam `thereto, means simultaneously operated with said valve ,to reduce the flow ofsteam to the fuel heater, valves arranged in the distributing box for independently regulating the several burners, vand means also operated from the distributing box for maintaining a circulation of fuel through the pump land heater when the burners are cut oif, substantially as described.

In testimony whereof I have signed. my name to this specification in the presence of two subscribing witnesses.

ANDREW LAING.

` Witnesses: g

WILLIAM RosEBY TWADDLE, ANDREW Srnor.