US1140828A - Bored-well-pumping apparatus. - Google Patents

Description

B'. JACKSON, Sn. @L B. JACKSON, Jn.

BoREn WELL PUMPING APPARATUS.

WYITNESSES:

B. JACKSON, Sn. L B. JACKSON, 1R.

BORED WELL PUMPING APPARATUS.

APPLICATION FILED MAR.23|1914.

wanted May 25, 1915.

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NETE' SAN@ Per Ti if NEUE@ o BYRON JACKSON, SR., AND BYRON JACKSON,

JR., OF SAN FRANCISCO, CALIFORNIA;

SAID BYRON JACKSON, sn., AssrGNoa tro lsnm BYRON JACKSON, Jr.

BORED--WELLPUMPING APPARATUS.

Application filed March 23, 1911i.

To all whom t may concern Be it known that we, BYRON JACKSON, Sr., and BYRON JACKSON, Jr., citizens of the United States, residing in the city and county of San Francisco and State of California, have invented new andl useful Improvements in Bored-Well-Pumping Apparatus, of which the following is a speciication.

The object of our invention is to provide an improvement in pumping apparatus which is so designed that the pump 'and ythe motor therefor are' practically integral and are capable of being lowered into a bored pumping well as a single, self-contained structure, having no external shaft, the construction being such that the size may be limited for that purpose.

rl`here are inlet and discharge pipes with suitable connections, and a means for introducing and discharging the steam, or other source of energy, to propel the motor, said supply and discharge passages occupying contiguous positions within the well casing and by the side of the water discharge passage.

rlhe invention also consists of certain details of construction which will be more fully explained by reference to the accompanying drawings, in which- Figure l is a vertical section of the apparatus showing its connections. Fig. 2 is a development of the turbine motor. Fig. 3 is a section, transverse to the motor, on line .fi/,'*Qa Fig. 1. Fig. 4 is a similar section on line 3/-jz/, Fig. 1. Fig. 5 is a bottom View of the upper steam passage. Fig. 6 is a bottom View of the pump and its curved blades.

The object of our invention is to provide a pumping apparatus and a motor of :suflicient strength and 'so compact in construction that the whole may Ebe lowered into a bored well any distance up to hundreds of feet. The motor may be an electric motor, or a steam turbine, which latter is illustrated in the present description and drawings. The turbine is supplied with steam, or equivalent pressure fluid, from a source of supply at the top through pipes carried down the inside of the well and the water is discharged through a central pipe leadl ing upward. rlhe steampipes and the n10- tor` are suitably jacketed andthefapparatus 1s operated without the use of any'shaft tir Specification of Letters Patent.

rateatea tray es, rais.

Serial N0. 826,537.'

. direct connection'of that character with the top of the v'well.

As shown in the drawings, A is a casing, the tsides of which may be cylindrical and the top and bottom converged in any suitable manner to suit the interior conditions of fthe apparatus. rlhe casing is designed of such diameter as to t the particular well to which it is to be applied, such wells being anywhere from six to eight inches up to twenty-liveor 'thirty inches. lnto the bottomof the 'casing opens yinlet 2 which Supplies water to the pump, lhereinafter to be described. From the top of the casing extends a discharge 'pipe 3 which is centrally located within the Well casing and extends tothe point of discharge at the top.

Substantially concentric within the outer casing A is 'an inner casing l, between which andthe outer'casing are formed'the water discharge passages. The pump impeller or runner, Lwhich is of the combined centrifugal and impact character, "is indicated at 5, and the"water vvfrom :the inlet passage 2 passes into lthis impeller, when in Operation, thence :up lthrough the exterior passages, being diverted by correctly shaped vanes 2 5 in such Ia manner as to change the direction or the water, 'after 'it leaves the impeller,

and gradually convert its movement into an upward movement Ithrough the outlet passage 3. lin order to'drive this impeller, we have shown a turbine, 'preferably a steam turbine, which is located directly above the pump, andthe lower part practically forms the top or the pump. The turbine is hermetically inclosed and insulated within the inner casing wall 4, which forms a jacket vbetween 'the turbine chamber and the water passage onthe outside.- A short shaft 6 carries the turbine and has its two bearings, one at the top, as at 7, and the other is shown at 8, Iwith a suitable packing, as at 9, toiprevent leakage. 'Steam vto Operate the p lturbine is admitted from a'boiler atthe surface, througha pipe, indicated at *10, Fig. 3, and the exhaust takes -place close to the point ofadmiss'ion and is carried away thrugh apipe tl1 Ilocated on the same side andv close'to the liiilet pipe '10,' these pipes, as 'well as the "xturbiiie and pump, being suspendedfinthe 'well casing. y

Fig.y 2 shows the turbine'opened out or displayed,`howlng the 'inlet passage l0 and 'l backwardly on 'geometrical lines,

here are only two of these is curved through an arc ofv exhaust passage zle 12, through which steam is admitted into the wheel, the runner of which is provided with curved blades;

a number of times and impelsY the runner, finally escaping through the exhaust passage 1l, as previously shown, within the inner water-tight casing, is entirely insulated therefrom, and the cas-Y ing, as before stated, forms the annular channel through which the pump discharges; this pipe serving as a means for suspending the turbine and pump withilthe well. A

A suitable stuffing-box, as at 14serves to seal the connection where the pipe passes through the annular water passage to the.

interior steam turbine. The discharge or exhaust pipe need not be longer than enough to reach above the normal level of the water in the well. Oil may be carried from the surface to the bearings of the pump and the turbine through a pipe 15 discharging to the interior of the shaft, as at 16,V and thence to the two shaft bearings.

Theturbine case is made in two halves, bolted together in the center, and, as previously stated, the lower half may be cast integral with the top cover of the pump. This cover bolts onto the annular water passage which'forms a 'part of the pump case and also an insulator for the turbine.

{An adjustable pump-balancing device' is located in the lower-side of the pump, as indicated at 17. When the pump is running,

a pressure is exerted on the lower face of the pump runner which will be sufficient to raise the runner into the casing until a balance is brou ht about by the leakage of water, under ischarge pressure, past the adjustable balance ring and into the suction chamber of the pump. Sufficient end play i is left to the shaft for the working of. thls automatic balance. The end of the suction makes a running joint with the bottom of the pump runner so that the ring can be raised or lowered by screwing the suction pipe in or out and the running position thus vlso changed. l

The blades of the pump runner are curved as shown at 18, Fig. 6. blades and each Ialmost 180. The object of this is to use the .impact force to a greater extent than the centrifugal, although the-latter may also exist. This construction enables the pump to be dri-ven eiicientlyat a higher speed than with the ordinary ables this pumping apparatus to be made smelll enough in diameter togo in a we In order to dispose of such water of condensation as may possibly collect in the tur.

11 and the expanding noz? as 'shown at 13, through: which the steam passes described. The turbine, running, as

runner and thus'enbored bine insulating chamber, we have shown -a v ber. This is designed to drain off the water which might leak or condense therein, and a pipe 21 carries oif such water of condensation, delivering it into the inlet passage through a check-valve,as shown at 22. The pipe 21.may also be employed as an alternative to carry part or all of theV exhaust steam into the suction of the pump and so discharge the steam turbine into a vacuum, thus forming a condenser. The live steam pipe leadingdown to the turbine and also the exhaust pipe are surrounded by annular air spaces, as at 11, in which a vacuum may be maintained to prevent loss of heat and consequent condensation of steam. Small tubes 26 connect these air spaces, which in turn are connected with a vacuum pump at \the surface. y Having thus described our invention, what we claim and desire to secure by Letters Patent is Y 1. In a pumping apparatus, a chamber, a turbine hermeticaly inclosed therein, an outer concentric chamber forming with the inner chamber wall an annular water passage, la pump runner located below and se arated from the turbine chamber, a journaled shaft upon which the turbine and the pump runner are fixed, packing joints for said shaft and for steam inlet and exhaust pipes where they enter the chamber, and means for `draining 'the insulating chamber.

v2. In a pumpmg apparatus, an outer casing having a lower inlet and upper outlet, a sealed inner casing in the outer casing spaced therefrom to form a water passage between the casings, a hermetically ysealed turbine within the inner casing, means leading from the turbine through both of the inner and outer casings to feed steam to and `exhaust same from the turbine, and means connected tothe turbine 4and extending throughthe inner and outer casings and discharging into the lower inlet for draining the turbine.

3. In a pumpingap aratus, an outer casing having a lower i et and an upper out let, an inner casing. in the outer casing spaced therefrom to form a water passage tube 20, one end of which isv placedin one 4 of the assages of the-turbine and the other betw n the casings, .a motor .within the inner asing, a pump impeller on the motor lshaft located below the inner casing and movable up and 'down in the space between the lower ends of the inner and outer casings, and means to allow restricted endwise movement of the shaft and thereby corresponding movement of the impeller in the last mentioned space and adjustable means in the inlet to restrict the extent of downward movement of the impeller.

- 4. In a pumping. apparatus, an outer cas,-

of the inner casing havin iueaeae ing having an outlet and an inlet and an inner casing in the 4outer casing spaced therefrom to form a water passage, the bottom facing recess on its under ace and the bottom of the outer casing having an upwardly facing recess on its upper face which registers with the first named recess, a motor inl l'the inner casing havlng its shaft extended into said recesses, a pump impeller on said shaft and movable upwardly and .downwardly in said recesses and a pipe screwed into the inlet and having its upper end forming a seat for the pump impeller.

5. ln a pumping apparatus, an outer casing having an outlet and an inlet and an inner casing in the outer casing spaced therefrom to form a water passage, a tura downwardly bine hermetically sealed and located within the inner casing, a pump impeller connected to the turbine andflocated 1n the space between the lower ends of the inner and outer casings, means leading through both casings and into the turbine for supplying motive fluid to and exhausting same from the turbine, -and means leading through both of the casings and into the inlet for draining the turbine.

1n testimony whereof ywe have hereunto set our hands in the presence of two subscribing witnesses.

BYRON JACKSON, SR.

, BYRON JACKSON, JR..

l Witnesses: JOHN H. HERRING, W. W. HEALEY.

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