US2468642A - Pumping device - Google Patents

Description

Patented Apr. 26,V 1949 PUMPING DEVICE lWalter Shallenberg, Salem, Ohio, assignor to The; Y

Deming Companygsalem, Ohio, a corporation of Ohio Application July 24, 1945,1"Serial No. 606,857

2 claims. (c1. l10s-260)` i. --This invention relates to an improvement in the jets of deep wel] pumps. Such jets, locatedin the'well and supplied with liquid under pressure from the pumping mechanism above the ground andforcing such liquid upwardly in the suction pipe leading to the pump, have been found quite satisfactory when installed. A difficulty has den veloped, however, that when the jet nozzle or the jet tube intowhich it discharges becomes clogged with dirt it was necessary to pullout of the well. the suction pipe, .the pressure pipe (if an external pipe is employed) and the jet body in order to iallow access to the jet nozzle or jet tube. The same situation arose where it was found desirable to change the size of an installed nozzle or tube.

The object of this invention is to avoid the difficulty mentioned by providing a jet nozzle and jet tube so constructed and mounted that they may be readily withdrawn through the suction pipe without disturbing either the suction pipe or the pressure pipe or the jet body which contains the suction and pressure passageways to the tube and nozzle. The means by which I accomplish this result is illustrated in the draw.- inghereof and is hereinafter more fully described.

In the drawing, Fig. 1 is a sectional side elevation partly broken away of a pump with a suction pipe, an external drive pipe and my improved jet; Fig. 2 is an enlarged vertical section in a plane indicated by the line 2 2 on Fig. 1 and on a larger scale; Fig. 3 is a vertical section on the same plane as Fig. 2 showing the iet pipe and jet nozzle in the act of being withdrawn through the suction pipe.

In Fig. l, Ill indicates any suitable pump supplied by a suction pipe Il and discharging into a delivery pipe l2. Secured to the lower end of the suction pipe Il is the jet body 20 which has within it a passageway 2l leading from the lower end of the jet body to the suction pipe, and another passageway 22 leading to the jet nozzle 23.

In Fig. 1, I have shown a pressure pipe l5, at the side of the pipe ll communicating at its upper end with the discharge of the pump and at the lower end with the passageway 22 in the jet body. If desired, in place of a pipe l at the side of the suction pipe Il, one may employ a pipe surrounding the pipe ll and utilizing the annular space between the two pipes as the conduit for the driving pressure, the annular space in this case communicating with a similar passageway 22 leading to the nozzle. Each form of pressure pipe is well known in practice and the '2 showing of the pipe I5 in Fig. 1 is intended as an illustration of either form of pressure conduit. Y rIhe nozzle 23 of the jet -discharges into a jet pipe 39 provided with a passageway 3l which flares at therlower end as shown at 32 and at the upper portion as shown at 33. Thenozzle 23 discharges directlyinto the passageway of the jet tube, and preferably enters it a short distance. The annular space around the nozzle allows water coming through the body passage- Way 2l to enter the jet tube and be boosted in its flow by the water under pressure discharging upwardly from the nozzle.

The construction so'f'ar described in general terms applies to the usual deep well jet. HowL ever, in the old form the nozzle is mounted rigidly in the'jet body, usually by being threaded.

therein, and the jet pipe is also attached to the body' frequently being screwed therein. In my invention, I 'depart from this usual construction by carrying the jet nozzle by the jet tube and mounting the jet tube removably in the body, thus enabling the jet'tube and nozzle to be drawn upwardly as a unit out of the suction pipe 'without disturbing the suction pipe or the jet body or the drive pipe.

As shown in Figs. 1 and 2, the jet tube 30 has a. tubular extension 34 at its lower end .which carries the jet nozzle 23, there being lateral passageways 35 through the extension from the exterior to the space about the nozzle immediately adjacent the lower end of the jet pipe. The nozzle may be screwed or forced into the extension 34 but in any case is rigid therewith. It preferably has a flange 24 abutting the end of the tube extension.

The exterior of the extension 34 is made so that it may make a water-tight fit with the elbow 26 of the jet body. It can be screwed tightly into the body, or, as illustrated in the drawing, it may be slightly tapered or conical as shown at 36, this conical portion seating in a conical upper end 25 of the elbow 26, which has the passageway 22 conducting the liquid under pressure inwardly and then upwardly to the nozzle. The tapered or threaded joint acts as a seal between the pressure and suction, though the jet tube is removable upwardly with the nozzle.

The jet tube is provided with an annular enlargement 31 near its lower end, the periphery of which fits within a cylindrical wall in the upper portion of the jet body. This enlargement has an annular groove in which seats a packing 38 engaging the wall of the jet body and making a water tight connection therewith.

a pipe or rod threaded at its lower end which may be screwed into the thread 39. Suchrpd is shown in Fig. 3 at 40 with the threaded' Iow`e'r end 4l thereof screwing into thelthread t39,1# the jet pipe.

Fig. 3 shows the removable parts in the-act of being removed, the withdrawing,rodxfqmhaying been attached and having mo'ved both the'jet tube and the jet nozzle upwardly, freeing bth of them from the jet body. It will be seen therefore that in changing thenozzlelortubeit isonly necessary to 4provide access tothe upper end A.tof the suction pipe d and then to insert zthe removing rodand .screwit into thejet body and pull ,upwardly o n the rod untilthetube and nozzrle 4are extracted, after which kthey may 4vbe cleanedor repaired and replaced, or asubstitute supplied as desired.

A .footvalve lis normally used belowthejetand I. .nd Liti/ery convenient. to carry the Same by. the jet body. ,I haveshownatubular extensionrg mountedl on thelower endof, the jet bodyz and having a transverse partitionl. with an4 opening providing a valve seat, I have shown .a val,ve. 52 coacting withthis seat. vIhevalve hasLa downwardly extending stem 5 3 slidably `mounted in a suitable spiderflile portion 5*5 of the extension, and a helical spring, surrounding the stem, and compressed between thespidertand ashoulder On. the stem, tends to maintainthe` valveonthe seat in addition to the action of gravity.

The same tubular extension 5 llmay; if desired, carryY a screen as forY instance .the cupshown in- Figsl and 2. This .cup may beconveniently heldin place by screwbolts. 6Iy (Fig. 2) screwig into the spider 55.

I claim:

1. .In a jet constructionffor a deepwellpumping system, the combination of a jet body having a suction passageway with a cylindrical opening adjacent the upper end, a pressure passageway terminating in a conical opening axially aligned with said cylindrical opening, and a unitary jet tube and jet nozzle removably mounted in both passageways, said jet tube having a cylindrical enlai 'nient 'with an annulaimgrdoiiiei packing seating'inthe groove "and bearing' agalnst the cylindrical opening of the body, said tube having 4an extension externally conical to make a tight connection with said conical opening and having artenal bore, the nozzle tightly seating in said L bore andhaving anexternal flange engaging the -lowe'ren'clv of thefextension, there being a lateral opening in tl'le'eXt'ension, at the side of the nozzle communicating with the entrance to the tube. 2.".The combination with a suction pipe and a pressure conduit of a jet body secured at its upper end to the suction pipe, an extension secured at thedowerend .of .the jet,bo,dy, and carrying a .foot valve, the .j et body having `two passageways, oneconnecting the space ab0.V. e.tl.1.f00t valve Witlrthe suction .pipe and thepther ,00,11- necting an internall space with the pressureconduit, ajet.t ube remo'vab1y mounted in thejet body, a" jet nozzle vcarried byftheltubatheitube beingin communication with .the suction passageway in the body andthe nozzle in communication' with the pressure. passageway in thebQdM Ythe jet tube and'nozzlelbeing withdrawableasa unitthrough the suction pipe. -WALTER SHAlLENlBERG.

.REFERENCES CITED The following references are of record inthe lvethis a'trtit:

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