US1155401A - Centrifugal pump. - Google Patents

Description

L. kw. BonlNsoN. CENTRIFUGAL PUMP.

MPLICAUON FILED APR. 29| 191|.

Patented Oct. 5, 1915.

3 SHEETS-SHED Off L. W. BODINSON.

CENTHIFUGAL PUMP.

APPLICATION msn APn.29.x9x1.

Patented Oct. 5, 1915.

3 SHEE|S--SHEET 2.

/0 N w /f L. W. BDINSUN.

CENTRiFUGAL PUMP.

1,155,401. APPLICATION FILED APR.29. |911. Patented Oct. 5'

3 SHEETS-SHEET 3.

:U @mf/ww@ UNITED STATES PATENT OFFICE.

LABS W. BODINSON. OE AURORA. ILLINOIS. ASSIGNOB. TO THE AMERICAN WELL WORKS, OF AURORA, ILLINOIS, A. CORPORATION OF ILLINOIS.

CENTRIFUGAL PUMP.

Specification of Letters Patent.

Patented Oct. 5, 1915.

To alt whom. it may conc-ern:

Be it. known that I. Lans W. Bomxsox. :i citizen of the lnited States. at Aurora. in the county of Kane and State of Illinois, have invented certain new and nful Improvements in Centrifugal Pumps. of which the following is a specification, reference being had to the accompanying drawings My invention relates to deep Well pumps. and'bas for its object to provide certain impmvements in pumps of the centrifugal type. as hereinafter t forth. l accomplish this object as illustrated in the drawings and as hereinafter describedwhat l regard as new is set forth in the claims In the accompanying Figure 1 is a sectional view illustrating the upper portion of my improved pumping apparatus in place in a well. the motor being in elevaton: Fig. 2 is :i sectional view of the lower portion of the pumping apparatus. beQ ing a continuation of the illustration in Fig.

" l: Fig. 3 is an enlarged sectional detail:

Fig. 4 is an enlarged detail of the lower end portion of the pumping apparatus some parts being in elevation; and Fig. 5 is a. similar vieu' of the intermediate portion of the pumping apparatus My improved pump is of the in which there is a pump-shaft extending down intothe wel] through a pump tube or casing and is provided with one or more pumping units which. b v the rotation 'of the shaft. act. to elevate the water- In pumps of this character it is ueccar)` to protect the pumpshaft from acelnnnlatiouof'sand or other solid material around' the iaft vith the consequent or Wearing away thereof.

and it is also necenrv to provide suitable bearings b r which like pump-shat is held properly in alinement and to provide adeouate means for lubricating such' bearings 3f? presmt invention has to do with irnproved means of securing these results as Well as to provide other improvements. which will be hereinafter pointed ont.

Referring to the dra Wings. 6 indicates the i Well- Whichis usuali)7 provided ith a wellA tube or casing 7. as shown in Figs. l and 2.

S indicates a tube or pipe which extends down into the well and serves :is a discharge pipe for the Water. The tube 8 is made in sections united bv couplings 9. with which they have screw-threaded connections. as shown. As bt shown in Fig. 2, said couplmgs comprise two members suitably sccured together. as by bolts. and having respectivelji` upwardly and downwardly extending annular Bauges into which the sections of the tube 8 are screwed.

1 0 indicates a discharge section or elbow. winch is connected with the upper end of the tube 8. preferably by a coupling 11, as shown in Fig. 1. The section 10 is preferably formed as a part of a pedestal 12 which forms a main support for the pump-rod or shaft hereinafter described. The pedestal 12 rests upon a bed-plate 13 which rests upon a suitable foundation I4.

15 indicates a pump rod or shaft, which is also made in sections connected by couplings 16. and at its upper end projects through a 17 carried by the pedestal 12. and is connected by a flexible coupling 18 of any suitable type with a motor 19 by which it is rotated. The weightA of the shaft l5 is sustained by :1n anti-friction bearing composed of upper and lower plates 20-2L respectively. the lower plate being mounted in a suitabge lsupport-1:22. the upper plate restingon t eower pate. and supporti u a collar 23 which is screw-threaded uponnhe pimp-shaft 15 so as to be adjustable longtudinallv thereof. By adjusting the collar 23 the shaft- 15 may be mjsed or lowered to secure vert-ical adjustment thereof.

24 indicates a lock-nut screwed upon the shaft 15 above the collar 23.

'25 indicates a pipe for conducting nil to the plate for lubricating its anti-friction bearingsaid pipe being provided with a gla tube 26 by which the level of the oil may be observed. Y

27 indicates a tube which surrounds the pump-shaft 15 and forms a casing therefor th protect it from water. sand. etc. Said cang is also made in sections which are muted' b v coupling blocks 28. having threaded ends to receive the ends of the casing. The blocks Z8 are slidablv fitted in.

sleeves`9-11 with which the couplings 9 :md ll are provided- Thus the latter con plings serve to center the casing in the discharge pipe 8.

29 indicates a stuing-box at the upper end of the casing 27 for preventing the escape of water around said easing.

l indicate upper and lower pumping l i0 units composed of chambers 32-33, respectively, in which are mounted rotating runners 34-35 carried by the pump-shaft 15. The units 30-31 are arranged in the form of a pile, one above another, any desired number being employed, (in the drawings Iphave pown only two) ,-the water paing from the lower unit to the one next above it under the action of the rotating runners.

36 indicates a discharge chamber above the upper unit 30 and communicating there` with and with the lower end of the discharge pipe S, as shown in Fig. 2. The casting which forms the discharge chamber 36 is provided with Va central sleeve 37 which formsabearingfortheshaftlandcom municates at its lower end with transverse 3S which extend from the shaft- 15 to the well, the purpose of these paages being to prevent water from gaining admissionintothesingbyallowingittopa ont said pannes 38 into the well. The lower connected end othecasing'istightly with the sleeve 37 in any con' venient way. preferably by screw-threads, as bestiownatSQinFig. Asalsoshown in said figure, the sleeve 3T is provided with a bushing 10. preferably of bra.. which takes the wear and may be easily replaced.

l1 indicates a gland fitted into the lower end of the Vsleeve 3? and held in place by boltsflasbestshowninliig. 5.

43 indicat a sleeve, which is fitted upon the shaft 15 below the bushing 40, which f sleeve als) forms a bushing to take the wear.

The sleeve 43 is orated, as shown 1n dottedlinesatllinFig. 5,sothat water and oil which enter the space between the casing andtheshatlmaypaoutintothetrans verse passages 38.

45 indicat packing in the form ofnnged disks which are provided upon the sleeve 43 andareheld inplacebytheglandll anda 45. as shown in Fig. 5.

46 indicates a bearing for the lower end of the pump-shaft 15, said bearing being mounted in a suction-chamber 47 which com municates with the lower pumping unit 31. The construdon of the lower bearing 46 is bestshowninlrigifromwhichitwillbe seen that the lower end of the pump-shaft is provided with a sleere 47* which is held in place by nuts 48-49 screwed upon the lower end of the pump-dixit, mid sleeve tting in the bearing 46, which is provided with a buiing 50. preferably in the form of abrastube. Thebearingisheldin place by webs 51 cast integral with the cas ing of the suction-diamber 47.

52 indicates a which is fitted over the upper end of the bearing 46 and is held -In place by bolts 53. Packing 54 similar to the packing l5 is provided around the sleeve 47 and is compressed by the gland 52 against a 55, as Shown in Fig. 4.

56 indicates a cap, which is screwed upon the lower end of the bearing 46 and incloses the lower end of the pump-shaft 15.

56a indicates a cap which is fitted upon the sleeve 47 and is secured thereto by a set-screw 56, as best shown in Fig. 4. The cap 56a has a depending ilange 56 which lits over an upwardly-projecting flange 52 on the -gland 52, thereby a'ording protection against the admission of sand to the bearing. The flange 56e is provided with outwardlypro1ectmg 56d. As the sleeve 47 and cap 56a rotate with the shaft 15, the wings 56" serve to throw sand and other gritty matter outwardly from the shaft. and there by further protect the lower bearing from injury by the admiion of such substans to it.

It will be noted from the foregoing de scription that the lower shaft is entirely inclosed and protected, butthe shaft is zill capable of being vertically adjusted, :is hereinbefore described. It will be noted. further, that the several runner chambers are interposed between the lowermost shaftbring46andtheshaftbearing37,both of which are protected against the admission of sand; Theupper bearing is further protected by the transverse passiges 38 which, as hereinbefore described; permit water to outintothewellwitholltgoingup intothebearing 37. sothatanysand carried by the water is discharged into the well and do not reach said bearing. By this construction thebearings are not cut out or inured to any appreciable extent as compared with other pumps of a similar type in which the saine protectionz is not afforded.

52' indicates a supplypipe, which communicates with the sudden chamber 47 and extends down into the well- In order to lubricate the several bearings. I provide an oil reservoir 58 having a pipe 59 which extends down into the well and communicates with Ythe several A branch pipe 60 extends from the pipe 59 to a chamber 61 which contains the dzungbox 29. for supplyingoiltothecasingarotmd the pmnprod. and a branch pipe 62 extends fromthepipe59tothebearing37,asshown in Fig. Q. The lower end of the pipe 59 extends into the bearing 46. It will be noted that by this construction the several bearings are lubricated', as oil being admitted to the cang 27 at its upper end, passes down therein to the several intermediate bearings th hout the length of the pump-shaft- The oil is also admitted directly to the bearingsS andl. Bytheuseofthepacking in the bearings 37 and 46 the oil is held in said bearings so that it does not readily espe.

ln Fig. 3 I have presented an enlarged view illustrating the construction of the several couplings 9, the manner in which the oil accumulated in 'members ly is allowed to pass through theme and means by which oil that may accumulate above the sleeve may. be withdrawn when thesections of the shaft casing are being disconnested, so as to prevent it. fromging out oreithe wozhuem Agsfthereinfshown, theY sleeve 2S isnpeor-ideali.t :e longihldinal whichtheoil-xnayow through said sleeve.- A4; endof the passage; 63 a-perforatedplug 64 isprovided which projects slightly above the upper end of the sleeve and consexpiently serves-to retain a similiquantity of oil inthe casing above the sleere. Asshown' in Fig. 3, the end 'ons ofthe sleeve 28 are screwthrea soiatthecasingsserewthereupon-the upper oh the casing being ill in said as almost wholly unscrewed from the eeve; When so unscrewed,.an opening-in the side of. the screw-threaded portion of ,thesleeve -is exposed whiehlis adapted to receive a pipe 65 which isscrewed theneintn, as shown in Qid figure. Consequently any oil that may have the 27 above the sleeve 2S owing to cloging of the pesage 63. may be withdrawn through pipe 65. When theupper section of is screwed dawn upon the sleeve such opening is closed thereby.

In order to prevent the sieeve 28 from wrningwhen thecasingsection isbeing unsewed, I provide a'rod 66 which his in a suitable socket provided in the side of the sleeve. as shown in Fig. 3, and may be locked to the conpling9by spin 67 which drops through au eyeinthe rod-66 into en# gagemeut with the coupling, which, as showninFigsandJsinthe fol-mofa spider. Thus the deeve 28 may be nonrotatably secured to the coapling sothat it does not turn when the section 27 is unscwed.

Tcoup 9 aremade otwo separable secured by bolts or other equivaleit-A devices sofdist they may be taken apart wha; desu-ed.

That which I claim as my invention, and desire wfeure by Letters Patent, is,-

l- In a ntriugal pump, the combinarim of a sectional water conducting pipe, a coupling thesectons of'md pipe together. a pump-shaft down thmugh said pipe, rotary water elevating devices rried b v said pump-shaft. a sectional casing inclosing said shaft, andfbear ings for said shaft' sections of the casing together, said being centered by said coupling and having a slidlng engagement therewith.

2. In a centrifugal pump, the combination of ar sectlial Water umducting pipe, a upling connecting the sections of said pipe together7 a. sleeve carried by mid coupling, n pumpshaft extending down through said tion of a sectional water conducting pipe, a

coupling connecting the sectio of said pipe together, ar slee-"e carried by said coupling, a pump-'shaft extending down through said pipe. rotary water elevating devices carried b v said pump-shaft. a sectional casing inclosing slid shaft, and a bearing block connecting thc sections of the sing together, said bearing block forming a U for 'wid shaft and being slidably fitted in said sleeve.

In1 a, centrifugal pump, the combina' tiony of a sectional water conducting pipe, couplings connecting the sections of said pipe together. a pump-shaft extending down through said pipe. rotary water elevating devices carried by slid pump-shaft. a sectional casng inclosing said shaft, the sections of said casing being centered by said couplings. n bearing for slid shaft adjacent to the lower end of said casing. one or more passages below said bearing and extending from the shaft to the interior of the well. packing around said shaft. between said bearing and said pasmges. and a gland and a spring for compressing slid packing.

6. In a centrifugal pump. the combination of a pump-shaft. one or more runners carried by mid shaft. a discharge chamber above the upper runner. ene or more passages extcnding acro said dixnharge cham ber from the well to the pump-shaft, beariugs for said shaft above and below said paages. and a casing inclosing the pumpshaft above the upper bearing and having no direct communication with the well.

i'. In a centrifugal pump. the combination of a pump-shaft. one or more runners carried thereby'. chambers in which said runners operate. bearings foi-Suid shaft. above and below said runners. packing around said' shaft below the upper bearing and above the lower bearing. and means for lubricating said bearings.

S. In :i centrifugal pump. the combina- .said shaft for supporting the same. :i c \'lin drical bearing in which the lower end portion' of said shaft its and is movable longitudinally. said bearing being closed at its upper and lower ends, and means for vertically adjusting said shaft.

9. In `a centrifugal pump7 the combination of a pump-shaft`^ one or more pumping near the lower end of said shaft,a bearing forV the lower end of said shaft, comprising a sleeve and packing surrounding mid sleeve. a gland for compreing said packing, and `a cap inclosingthe lower end of the shaft.

10. In a cen val pump, the combination of a pump-sha e, a sectional easing inclosing said shaft, a coupling comprising a sleeve having its ends screw-threaded to reeeive the ends of the casing, said sleeve having an oil-pasage therethrough, and an external o at one side of the screwthreaded portion thereof communicating with said oil-passage 11. In a centrifugal pump, the combination of a pump-shaft. a sectional casing inclosing said shaft. a coupling comprising a sleeve having its ends screwthreaded to receive the ends of the casing, said sleeve haring an oil-paage therethrou, an external opening at one side of the screw-threaded portion thereof communicating with said niLpamge. and a perforated plug in the upper end of said passagel. In a centrifuga] pump. the combination of a pump-shafta sectional casing inclosing slid shaft. a coupling comprising a sleeve having its ends screw-threaded to receire the ends of the casing. said sleeve having` :1 socket at one side between the threaded portions thereof, a sectional water discharge pipe. and a coupling uniting the sections of .mid discharge pipe. said sleeve being fitted in said coupling.

13. In a centrifugal pump. the combination of a pump-shaft. pumping units near the lower end of said shaft. a discharge chamber above said pumping units and communicating therewith. a discharge pipe extending npward from said discharge chaur ber. bearings for said pump-shaft above and below said pumping units. an oil pipe extending down from the surface and connected with said upper and lower bearings. a casing inclong said pumpshaft. said casing being connected with said upper bearing and having no direct communication with the well. and means for supplying oil to said casing.

14- ln a centrifugal pump. the combination of a pump-shaft. one or more runners^ carried by said shaft. a discharge chamber above the upper runner. a bearing for said shaft above the upper runner. a casing inclosing said pumpshaft and extending upuardly from said said casing having no direct communication with the well.

one or more passages extending across said discharge chamber from Vthe well to the pumphaft. and packing around said shaft between said bearing and said passages.

15. The combination with a sectional welitube, of a coupling uniting the sections of the tube together, said coupling comprising members secured together and having oppositely extending screw-threaded annular flanges adapted to receive the adjacent ends of the Well-tube. 'said coupling members haring internal registering sleeves 16. ln a vertical pump of the type described. the combination of a pumpshaft, one or move runners carried by said shaft. a bearing for said shaft below the lowermost runner. a packing gland for said bearing. an imperforate cap supported by the shaft and fitting over the upper end of said packing gland for protecting the same from sand. and means for vertically adjusting the shaft.

1T. In a vertical pump of the type described. the combination of a rotary pumpshaft, one or more runners carried thereby, a bearing for the lower end of said shaft. said bearing being closed at its lower end and in the. water-supply pansage of the pump, a packing gland for said bearing, and an imperforate cap carried by the shaft and fitted over the upper end or said bearing packing gland.

18. In a vertical pump of the described. the combination of :1 rotary pumpshaft. one or more runners carried by said shaft. a bearing for the lower end of said shaft. a packing for said a gland for securing said packing in place, and an imperforate cap carried b v the shaft above said gland for protecting the upper end of the gland against the admision of sand- I9. In a vertical pump of the type described. the combination of a rotary pumpshaft. one or more runners carried by said shaft. a bearing for the lower end of said shaft. a packing for said bearing, a gland for securingfsaid packing in place. and imperforate means carried by the shaft above the gland andV rotating with said shaft for throwing snbmnces out from the shaft In a vertical pump of the type described. the combination of a rotary pumpshaft. one or more runners carried by said shafta bearing for the lower end of said shaft. a packing for said bearing. a gland for securing said packing in place. and an imperforate cap carried by the shaft above said gland for protecting the upper end of the gland against the admission of sand, mid cap having outwanily-projecting 21. In a vertical pump of the type de the combination of a series of superposed runnerchambersa pumpshaftrunners carried b v said shaft :md operating in said chambers. and bearings for said sha ft above and below said series of superposed chambers, said bearings being closed at their upper and ower ends against the admission of sand.

:22. In a vertical pump of the type described. the combination of a series of superposed rnnnerhambers, a pump-shaft, runners carried by said shaft and operating in said chambers, bearings for said shaft above and below said series of super-posed cham bers. said bearings being closed at their upper :md lower ends against the admission of sind, and a passage extending from belo'a the upper bearing to the well.

:23. In a vertical pump of the type described. the combination of one or more runwell for conducting water and snbstances carried by it out. into the weil to protect said bearing.

LABS W. BODINSON.

Witnesses:

W. E. Kxlcnnnnocxnx, E. I. ERICKSON.

GopiesaithispatentmayheohtainedforiveaembyaddressingtheCommslonerofhtenm Waxhingtncmllc.

fulfil.

IL s hereby fcerbifed hat in Letters Patent No. 1,155,401, grunted 00min-r 5,

195, upem the application of Lars W. Bmlinson, of Amrum, Illinois fur un improvement in .entr'ifugu Pumps, an error appears 'm bho primed spmxfcmion requiring wrrrctim'l as follows: Pngr 4, iin@` 96, -claim 1r' faLrikfl nur thv wmi mmh-4H; mul hm thc said Letters Pnwnt, should bv rend with Ilm Urn-milan therein Limi Lb mmv muy conform to ihr: rccurd 0f the msc in tim Pmvm (Mirra.

Sgmd :ml ,'#calm Lhm 16th day of November, A. D., 1915.

Acting Ummmlsswncr gf Pate-nm

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