US669280A - Steam-generator. - Google Patents

Description

- YPatentd Mar. 5, |90I. J. W. JONES.

STEAM GENERAToR.

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STEAM GENERATOR.

(Application led May 25, 1900.1

(No Model.)

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UNITED STATES PATENT Ottica.v

JOSEPH W. JONES, OF NEW YORK, N. Y.

STEAM-GENERATOR.

SPECIFICI-axon forming part of Letters Patent No. 669,280, date March 5, 190i.

Application filed May 25, 1900- Serial No. 17,983. kNo model.)

To a/ZZ whom t may concern.:

Be it known that I, JOSEPH 'W. JONES, a citizen of the United States, residing at New York, in the borough of Manhattan, State of New York, have invented a new and useful Steam-Generator, of which the following is a specification.

The general object of this invention is to provide a steam-generator capable of quickly producing a large amount of steam without heating in advance any considerable body of water. In seeking this general result the devices are made to occupy an unusually small space, a rapid and perfect circulationy in the generator is provided for, and steam is superheated before delivery.

In the drawings, Figure 1 is a section on the line 1 1, Fig. 2. Fig. 2 is a plan view of the same apparatus, parts being omitted. Fig. 3 is a section on the line 3 3, Fig. l. Fig. 4 is a section on the line 4 4, Fig. 1, showing only a certain air-supplying tube. Fig. 5 is a view similar to Fig. 1, showing the apparatus slightly modified. Fig. 6 shows a modified construction of a certain steam and water column seen in Figs. 1 and 5.

In general terms the apparatus consists of a large vertical pipe or steam and water column inclosed in a suitable jacket, a series of concentric helical coils of pipe inclosed in a jacket forming a heating-chamber alongside the column and each having its ends communicating with the upper and lower parts, respectively, of the column, and means whereby the steam taken from the upper part of` the column is superheated before delivery.

' In the various figures where the letters 0ccu r, Arepresents the steam and water column inclosed in a jacket B, and O C' C2 C3 O4 designate slightly-separated concentric helical coils of pipe, preferably parallel to the column and all having their upper ends D D D2, 85o., communicating with the upper part and their lower ends E E E2, dto., communicating with thelower part of the same column. The connections at each end of each coil are detachable, and in the form shown in Fig. 1 a lateral extension drum or pipe E5 of the column extends out beneath the coils, so that each being detachably connected to this drum may communicate with the column without projecting to the cylinder elements of the next coil. Thus when they are detached each coil mayl pass bodily upward and be wholly withdrawn from the apparatus without disturbing the coils without it. Below the coils,

Vwhich all have their lower ends in approximately the same plane, is a burner supplied with fuel, preferably gaseous. In the apparatus chosen for illustration a pipe F brings liquid hydrocarbon from any suitable source of supply, passes around in the space just above the burner, so that the fuel may be volatilized by heat, and finally discharges the gas through a needle-valve F in to a mixing-chamber F2, where it is mixed with air brought through a pipe G, curved around in the heated zone below the plane of the burner and opening into the mixing-chamber at Gr.

The mixed air and gas passing from this chamber strikes an upwardly-convex perforated distributing-plate H, where it is still further mixed and escapes upward through the perforations and is burned above the plate in direct contact with the entire surface of the lower turns of each coil, giving, as usual, a nearly colorless iiame and intense heat. Water is supplied to the steam and water column by injecting devices, in this instance shown as a pump I, Whose deliverypipe I' passes above the coils and descends vertically within all the coils to a point just above lthe needle-valve, whereit turns abruptly and passes to the column A. The pipe I is provided with an air-chamber I2 to insure steady iow, and also with avalve I3, held closed by a spring I4 with a force which may be varied by means of a screw 15. The pump or other injecting device may act constantly, and when the resistance to the delivery of water in the column exceeds the limit fixed in adjusting the screw I5 the valve opens and the water escapes, but only so long as this limit is exceeded, and Hows back to the source from which it was drawn by the pump or elsewhere, as may desired. This feed-water in passing down within the coils is heated, yet not to a high degree, so'long as a constant flow is maintained; but as soon as the flow ceases-that is, when the pressure opens the valve ls-this vertical part ofthe pipe quickly heats, and of course expands; but such expansion is prevented from extending the pipe upward by means of a rigid stop J,

IOO

and hence the whole expansion acts to press down the needle-valve F and shut off the supply of fuel. l

Now if the lower part of the column, and of course the lower part of each coil, contain water and it' the burner be lighted steam is quickly generated and steam and water are off the heat before the limit of safety is passed.

Steam for use is taken from the upper part of the column through a pipe K, which passes down through the space within the inner pipecoil and returns, thereby securing superheating of the steam by taking it through the intensely hot space directly above the burner. Some portion of this steam may control the action of the pump, or the latter may be put into operation by the attendant after steam begins to be delivered and then allowed to work without cessation until the generator is to be put out of action.

The jacket B consists of two parts, Van upwardly-closed cylinder B', inclosing the coils in a heating-chamber B2, and a part B3,inc.los ing the steam and water column, and the products of combustion escape through a ue B4. The entire apparatus may be supported in any suitable manner; but as shown it is supported by a simple rectangular frame L, upon which rests a clamping-ring M, embracing the steam and water column between flanges A2 and extending around the generating-coils and upon the side diametrically opposite the column, bearing a rack N, which aids in holding the coils, although the latter, being small and light, may be supported entirely by the column itself.

In Fig. l the column Ais shown as formed with a iiange P', supporting superposed rings P, provided with perforations to register, respectively, with perforations S in the column and with the passages in the coil ends D D', dac., which arescrewed into nipples on the rings. rlhe rings are held rigidly in place by a nut A5, screwing upon the upper end of the column.

In Fig. 5 the lowerends of the coils as well as the upper ones communicate directly with the column, being provided with rings P2,sup ported by a ange P3. Upon these rings rests a sleeve Q, and upon the sleeves are superposed rings P4, like those below, and both sets of rings and the sleeve are rigidly clamped by a nut P5. The column may be built up as shown in Fig. 6.

It is evident that-a great heating-surface is obtained within a verysm'all space, that practically no joints are subjected to direct action of the fuel, that a Very small body of water is heated at any one time, and that the action once fully started the control is purely automatic.

That I claim isl. In a steam-generator, the combination with an L-shaped steam and water column of a series of coils alongside the column, all having the same axis, and each having its ends communicating with the vertical and horizontal portions, respectively, of said column.

2. In a steam-generator, the combination with an L-shaped steam and water column, of a hea ting-chamber, a series of pipes coiled to form concentric helices within the chamber and each leading from the horizontal portion of the column and returning to its vertical portion, a heating device below said coils, means for supplying water to the column and means for discharging steam from the vertical portion of the column.

3. In a steam-generator, the combination with an L-shaped steam and water column and a series of concentric coils each leading from the horizontal to the vertical portion of the column, means for heating the coils, and a steam-pipe leading from the vertical portion of the column through the highly-heated space within the coils.

4. The combination with an L shaped steam and water column of a series of concentric helical coils parallel to said column and each having its ends communicating with the vertical and horizontal portions of the column, respectively, heating devices for the coils, and means for shielding the column from the direct action of said devices.

5. The combination with a jacket, of an L- shaped steam and water column outside the jacket, aseries of coils within the jacket each having its ends extended through the jacket and communicating with the vertical and horizontal portions of the column, respectively, and means for heating said coils.

6. The combination with an L shaped steam and water column provided with a water-inlet below and a steam-outlet above, of a series`of concentric helical coils each having its ends detachably connected with the vertical and horizontal portions of the column, respectively, means for heating said coils, and automatic devices governing the degree of such heating.

7. The combination with an L shaped steam and water column of a series of concentric helical coils each having its ends detachably connected with the vertical and horizontal portions of said column respectively, and each arranged for ready separation from the other concentric coils.

8. The combination with the steam and water column, of the concentric coils alongside the column and each having its ends detachably connected with the upper and lower portions, respectively, of the column, of the valved water-supply pipe leading through the axial space within the coils to said column, the steam-pipe leading through said axial space from the column; and heating Vdevices below said coils.

9. The combination with a vertical steam and Water column, of the pipe projecting horizontally from one end thereof, the concentric coils alongside the column and each vhaving one end detaohably connected direct-,ly to nhe corresponding end of the column and the other end detaehably connected to said pipe Without passing to the cylinder elements of 1o adjacent; coils.

JOSEPH W. JONES.

Witnesses:

SGHUYLER DURYEE, M. O. SPRING.

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