US1735754A - Liner for centrifugal pumps - Google Patents

Liner for centrifugal pumps Download PDF

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Publication number
US1735754A
US1735754A US207799A US20779927A US1735754A US 1735754 A US1735754 A US 1735754A US 207799 A US207799 A US 207799A US 20779927 A US20779927 A US 20779927A US 1735754 A US1735754 A US 1735754A
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United States
Prior art keywords
liner
casing
liner plate
impeller
adjustable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US207799A
Inventor
George R Hargis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Frederick Iron & Steel Co
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Frederick Iron & Steel Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Frederick Iron & Steel Co filed Critical Frederick Iron & Steel Co
Priority to US207799A priority Critical patent/US1735754A/en
Priority to US355880A priority patent/US1743916A/en
Application granted granted Critical
Publication of US1735754A publication Critical patent/US1735754A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4286—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps inside lining, e.g. rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/622—Adjusting the clearances between rotary and stationary parts

Definitions

  • VMy invention relates broadly to centrifugal pumps and more particularly to an arrangement for adjusting liner plates in centrifugal pumps.
  • One of the objects of my invention is to provide a construction of adjustable liner plate for centrifugal pumps for compensating for thewear which occurs between the impeller and the liner plate in the centrifugal pump.
  • Another object of my invention is to pro- Y vide a construction of adjustable renewable liner plate for centrifugal pumps in which the position of the liner may be selectively fixed with respect to the impeller and locked in position to secure that degree of seal necessary in maintaining the pump capacity and efficiency.
  • Still another obj ect of my invention is to provide a construction of liner plate andsecuring means for the casing of a centrifugal pump, wherein the liner Vplate may be advanced to a predetermined position with respect to the impeller at various times during g the life of the pump, for compensating for inherent wear, for insuring that degree of clearance necessary and for maintaining the eiiciency of the pump.
  • FIG. 1 is a fragmentary cross-sectional -view through the centrifugal pump showing one form of adjustable renewable liner plate with adjusting locking device constructed in accordance with my invention
  • Fig. 2 is a modified form of adjustable renewable liner plate for centrifugal pump constructionsl embodying my invention in which the liner plate is screw threaded to the interior of the housing of the pump
  • Fig. 3 shows a still further modification of the adjustable liner plate construction of my invention, where the liner plate is screw threaded to the interior of the suction intake of thelpump
  • Fig. 4 shows a further modified construction of adjustable renewable liner plate, where the liner plate may bev locked in position with respect to the impeller.
  • reference character 1 designatesthe rotatable shaft of the centrifugal pump carrying the member ⁇ 2 rotatable within thecentrifu- Y gal pump casing 3.'
  • The-pump casing-3 is i closed at one .side thereof byy wall 4.
  • lsuction intake pipe linev is represented at 5 connected by annular wall -6 with the casing 8.
  • the adjustable renewable liner plate of i my invention is designatedat 7 as having an annular portion 8- which inthe constructions shown in Figs. 1, 2 andfrictionally enga-ges the suction pipe line 5 as asocket.
  • Fig. 1 the liner plate 's provided with a plurality' of bosses 9 into whichstuds 10 are' screw threaded and project through screw threaded apertures 11in lthe casing f6.
  • the stud 10 is screw threaded at its outer end to" receive the nut'15 to' lock intoposition a follower member 12 whichis adjustable againstp-acking 14: within the screw threaded yaperture 11 around'jthestu-d-lO which is squeezed tight by the follower for lpreventing any leakagev from the ypump.
  • ⁇ lfocking nut 15 engagesithe screw threaded.
  • Fig. 4 I have illustrated a further. modi- Yfied .form of adjustable renewable liner plate l wherein two'sets of screw members are provided, one set constituting set screws 19 for follows v exerting a thrust force against the flange 20 of the liner plate 7, and the other set of screw members constituting the screw devices 21 for holding the liner plate tightly in position after the spacial relation between the surface 16 and the edges of the blades on the impeller '2 has been predetermined. l
  • a centrifugal pump comprising a casing, a suction intalefpipe leadingY to said casing, an ⁇ impeller rotatablyv mounted in said casing, a circular plate member engaging the interior of said suction intake pipe and adjustable longitudinally with respect so Y to said casing for selectively iixingthe gap between said impeller and one wall of said casing, and a plurality of studs projecting from said circular plate member through said Y' wall for locking said circular plate member position with respect to the wall in a selected of said casing.
  • a centrifugal pump comprisingfa cas ing, a suction intake' pipeleading to .said casing, an impeller rotatably mounted within said casing, a circular plate member having an integrally connected hub portion .extendu ing centrally therefrom and engaging the interior of said suction intake pipe, and
  • screw threadedA means engaging the outer portion of said circular plateA memberand passing through said casing for selectively fixing the gap between said impeller, the face of said circular plate member and the inner wall of said casing;
  • a centrifugal pump comprising a casing, an impeller rotatably mounted within said casing, a circular plate member having a face extending substantially parallelto said

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

' Nov. l2, 192.9. G. R. HARGls LINER FOR CENTRIFUGAL PUMPS Filed July 22, 1927 INVENTOR. y @afge j?. jzylls; l BY (j, Um A T ORNEY GEORGE R. HARGIS, or FREDERICK, MARYLAND, AssrenoR "ro THR rRnnERicR Patented Nov. 12, 1929I Y* 4l'Unirseeine"rss marsa IRON a STEEL COMPANY, or FREDERICK, MARYLAND, ii-fcoRreRn'rrQ-rr or maar;
LAND
LINER FOB GENTRIEGAL EUMPS Application led July 22, 1927. Serial No. 207,799.
VMy invention relates broadly to centrifugal pumps and more particularly to an arrangement for adjusting liner plates in centrifugal pumps.
One of the objects of my invention is to provide a construction of adjustable liner plate for centrifugal pumps for compensating for thewear which occurs between the impeller and the liner plate in the centrifugal pump. Another object of my invention is to pro- Y vide a construction of adjustable renewable liner plate for centrifugal pumps in which the position of the liner may be selectively fixed with respect to the impeller and locked in position to secure that degree of seal necessary in maintaining the pump capacity and efficiency. i
Still another obj ect of my invention is to provide a construction of liner plate andsecuring means for the casing of a centrifugal pump, wherein the liner Vplate may be advanced to a predetermined position with respect to the impeller at various times during g the life of the pump, for compensating for inherent wear, for insuring that degree of clearance necessary and for maintaining the eiiciency of the pump.
My invention will be more clearly understood from the specification hereinafter fcllowing by reference to the accompanying drawings, in which:
Figure 1 is a fragmentary cross-sectional -view through the centrifugal pump showing one form of adjustable renewable liner plate with adjusting locking device constructed in accordance with my invention; Fig. 2 is a modified form of adjustable renewable liner plate for centrifugal pump constructionsl embodying my invention in which the liner plate is screw threaded to the interior of the housing of the pump Fig. 3 shows a still further modification of the adjustable liner plate construction of my invention, where the liner plate is screw threaded to the interior of the suction intake of thelpump; and Fig. 4: shows a further modified construction of adjustable renewable liner plate, where the liner plate may bev locked in position with respect to the impeller. v
Referring to the drawingsin more detail, reference character 1 designatesthe rotatable shaft of the centrifugal pump carrying the member`2 rotatable within thecentrifu- Y gal pump casing 3.' The-pump casing-3 is i closed at one .side thereof byy wall 4. The
lsuction intake pipe linev is represented at 5 connected by annular wall -6 with the casing 8. `The adjustable renewable liner plate of i my invention is designatedat 7 as having an annular portion 8- which inthe constructions shown in Figs. 1, 2 andfrictionally enga-ges the suction pipe line 5 as asocket. Y
In Fig. 1 the liner plate 's provided with a plurality' of bosses 9 into whichstuds 10 are' screw threaded and project through screw threaded apertures 11in lthe casing f6. The stud 10 is screw threaded at its outer end to" receive the nut'15 to' lock intoposition a follower member 12 whichis adjustable againstp-acking 14: within the screw threaded yaperture 11 around'jthestu-d-lO which is squeezed tight by the follower for lpreventing any leakagev from the ypump. `lfocking nut 15 engagesithe screw threaded. stud 10 and serves-tos'ecure the follower 12 inv apredetermined'vpositi'on' forselectirvely fixing the d5i-s-` tance between the surface 16 ofthe vliner 7 and the blades ofthe impel-ler 2'. f In Fig. 2 l have shown the adj ustableliner plate 7 as screw threadedy atits outerv periphery 17 to engage corresponding screw threads 18l on= the pumpv casing 3. Set screws 19' are adj'ustably positioned in the wall 6 and bear uponthe annular fiangefportion 20 of the liner plate 7 for fixing the liner plate` in po'- sition after the liner platehasbeen movedto n the desired. position' in the screw threads 185.
In Fig. 3k I havey shown a construction` of direction which will cause the liner plate to Imove forward toward the impeller 2, after which( the set screws are again pulled tight to prevent further movement of the liner.
In Fig. 4 I have illustrated a further. modi- Yfied .form of adjustable renewable liner plate l wherein two'sets of screw members are provided, one set constituting set screws 19 for follows v exerting a thrust force against the flange 20 of the liner plate 7, and the other set of screw members constituting the screw devices 21 for holding the liner plate tightly in position after the spacial relation between the surface 16 and the edges of the blades on the impeller '2 has been predetermined. l
The'adjustable liner plate constructions of my invention have been found to be extremely practical in operation for maintaining the capacity and efficiency of the pump throughout a long period of life, and while I have described various embodiments of my invention, I 'desire that it beunderstood that modii ications may be made and thatrno limitations upon my inventionv are intended other than are imposed by the scope of the. appended claims. Y j
What I claim as new and desire to secure by Letters Patents of the United States is as 1. A centrifugal pump comprising a casing, a suction intalefpipe leadingY to said casing, an `impeller rotatablyv mounted in said casing, a circular plate member engaging the interior of said suction intake pipe and adjustable longitudinally with respect so Y to said casing for selectively iixingthe gap between said impeller and one wall of said casing, and a plurality of studs projecting from said circular plate member through said Y' wall for locking said circular plate member position with respect to the wall in a selected of said casing.
2. A centrifugal pump comprisingfa cas ing, a suction intake' pipeleading to .said casing, an impeller rotatably mounted within said casing, a circular plate member having an integrally connected hub portion .extendu ing centrally therefrom and engaging the interior of said suction intake pipe, and
screw threadedA means engaging the outer portion of said circular plateA memberand passing through said casing for selectively fixing the gap between said impeller, the face of said circular plate member and the inner wall of said casing; Y
3. A centrifugal pump comprising a casing, an impeller rotatably mounted within said casing, a circular plate member having a face extending substantially parallelto said
US207799A 1927-07-22 1927-07-22 Liner for centrifugal pumps Expired - Lifetime US1735754A (en)

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Application Number Priority Date Filing Date Title
US207799A US1735754A (en) 1927-07-22 1927-07-22 Liner for centrifugal pumps
US355880A US1743916A (en) 1927-07-22 1929-04-17 Liner for centrifugal pumps

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130678A (en) * 1961-04-28 1964-04-28 William F Chenault Centrifugal pump
US3324800A (en) * 1966-08-01 1967-06-13 Allis Chalmers Mfg Co Pump adjusting means
EP0292113A2 (en) * 1987-04-16 1988-11-23 David William Pope A pump
US4802818A (en) * 1987-09-28 1989-02-07 Daniel Wiggins Slurry pump suction side liner with replaceable components
WO2000057056A2 (en) * 1999-03-22 2000-09-28 David Muhs Pump assembly and related components
US6315524B1 (en) 1999-03-22 2001-11-13 David Muhs Pump system with vacuum source
WO2001090583A1 (en) * 2000-05-19 2001-11-29 The Gorman-Rupp Company Centrigugal pump having adjustable clean-out assembly
US6390768B1 (en) 1999-03-22 2002-05-21 David Muhs Pump impeller and related components
US6405748B1 (en) 1999-03-22 2002-06-18 David Muhs Trailer and fuel tank assembly
US6692234B2 (en) 1999-03-22 2004-02-17 Water Management Systems Pump system with vacuum source
US20050095124A1 (en) * 2003-10-31 2005-05-05 The Gorman-Rupp Co. Impeller and wear plate
US20070036643A1 (en) * 2005-08-10 2007-02-15 Envirotech Pumpsystems, Inc. Tool-free adjustable clean out assembly for a pump
US20080175722A1 (en) * 2007-01-19 2008-07-24 David Muhs Vacuum pump with wear adjustment
US20080175723A1 (en) * 2007-01-19 2008-07-24 Water Management Systems Vacuum pump with wear adjustment
US20090290979A1 (en) * 2008-05-23 2009-11-26 Mitsubishi Heavy Industries, Ltd. Compressor housing
US20110044827A1 (en) * 2009-08-24 2011-02-24 David Muhs Self priming pump assembly with a direct drive vacuum pump
US20110142599A1 (en) * 2008-06-13 2011-06-16 Kevin Edward Burgess Adjustable side liner for a pump
CN103758778A (en) * 2014-01-24 2014-04-30 温州市康而达实业有限公司 Horizontal centrifugal pump with adjusting guard plate
US9051940B2 (en) 2011-07-01 2015-06-09 Itt Manufacturing Enterprises Llc. Method and apparatus for adjusting impeller/ring clearance in a pump
AU2015202357B2 (en) * 2008-06-13 2017-02-02 Weir Minerals Australia Ltd An adjustable side liner for a pump
US20200063747A1 (en) * 2016-03-18 2020-02-27 Weir Slurry Group, Inc. Sealing Arrangement For Adjustable Elements Of A Pump
US11624367B2 (en) * 2017-03-03 2023-04-11 Varisco S.r.l. Centrifugal pump and method of adjusting the distance of the wear plate from the impeller of a centrifugal pump
WO2024134699A1 (en) * 2022-12-22 2024-06-27 Caprari S.P.A. Centrifugal pump

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130678A (en) * 1961-04-28 1964-04-28 William F Chenault Centrifugal pump
US3324800A (en) * 1966-08-01 1967-06-13 Allis Chalmers Mfg Co Pump adjusting means
EP0292113A2 (en) * 1987-04-16 1988-11-23 David William Pope A pump
EP0292113A3 (en) * 1987-04-16 1989-02-15 David William Pope A pump
US4802818A (en) * 1987-09-28 1989-02-07 Daniel Wiggins Slurry pump suction side liner with replaceable components
US8662862B2 (en) 1999-03-22 2014-03-04 Water Management Systems, LLC Pump system with vacuum source
WO2000057056A2 (en) * 1999-03-22 2000-09-28 David Muhs Pump assembly and related components
US6315524B1 (en) 1999-03-22 2001-11-13 David Muhs Pump system with vacuum source
WO2000057056A3 (en) * 1999-03-22 2001-01-11 David Muhs Pump assembly and related components
US6390768B1 (en) 1999-03-22 2002-05-21 David Muhs Pump impeller and related components
US6405748B1 (en) 1999-03-22 2002-06-18 David Muhs Trailer and fuel tank assembly
US8246316B2 (en) 1999-03-22 2012-08-21 David Muhs Vacuum source and float valve for a self-priming pump
US6585492B2 (en) 1999-03-22 2003-07-01 David Muhs Pump system with vacuum source
US20110008183A1 (en) * 1999-03-22 2011-01-13 David Muhs Pump system with vacuum source
US7794211B2 (en) 1999-03-22 2010-09-14 Water Management Systems Pump System with a vacuum source coupled to a separator
US6692234B2 (en) 1999-03-22 2004-02-17 Water Management Systems Pump system with vacuum source
US20040120828A1 (en) * 1999-03-22 2004-06-24 David Muhs Pump system with vacuum source
US7011505B2 (en) 1999-03-22 2006-03-14 Water Management Systems Pump system with vacuum source
US7311335B2 (en) 1999-03-22 2007-12-25 Water Management Systems Trailer and fuel tank assembly
AU2001264692B2 (en) * 2000-05-19 2004-07-01 The Gorman-Rupp Company Centrigugal pump having adjustable clean-out assembly
EP1285168A1 (en) * 2000-05-19 2003-02-26 The Gorman-Rupp Company Centrigugal pump having adjustable clean-out assembly
US6887034B2 (en) * 2000-05-19 2005-05-03 The Gorman-Rupp Company Centrifugal pump having adjustable clean-out assembly
EP1285168A4 (en) * 2000-05-19 2003-10-15 Gorman Rupp Co Centrigugal pump having adjustable clean-out assembly
US20030206797A1 (en) * 2000-05-19 2003-11-06 Mesiter David L. Centrigugal pump having adjustable clean-out assembly
WO2001090583A1 (en) * 2000-05-19 2001-11-29 The Gorman-Rupp Company Centrigugal pump having adjustable clean-out assembly
US7037069B2 (en) 2003-10-31 2006-05-02 The Gorman-Rupp Co. Impeller and wear plate
US20050095124A1 (en) * 2003-10-31 2005-05-05 The Gorman-Rupp Co. Impeller and wear plate
US20070036643A1 (en) * 2005-08-10 2007-02-15 Envirotech Pumpsystems, Inc. Tool-free adjustable clean out assembly for a pump
EP1915513A2 (en) * 2005-08-10 2008-04-30 Envirotech Pumpsystems, Inc. Tool-free adjustable clean-out assembly for a pump
EP1915513A4 (en) * 2005-08-10 2011-06-29 Envirotech Pumpsystems Inc Tool-free adjustable clean-out assembly for a pump
US20080175722A1 (en) * 2007-01-19 2008-07-24 David Muhs Vacuum pump with wear adjustment
US7878768B2 (en) 2007-01-19 2011-02-01 David Muhs Vacuum pump with wear adjustment
US20080175723A1 (en) * 2007-01-19 2008-07-24 Water Management Systems Vacuum pump with wear adjustment
US20090290979A1 (en) * 2008-05-23 2009-11-26 Mitsubishi Heavy Industries, Ltd. Compressor housing
US8251650B2 (en) * 2008-05-23 2012-08-28 Mitsubishi Heavy Industries, Ltd. Compressor housing
EP3447308A1 (en) * 2008-06-13 2019-02-27 Weir Minerals Australia Ltd Adjustable side liner for a pump
EP2894352A1 (en) * 2008-06-13 2015-07-15 Weir Minerals Australia Ltd Adjustable side liner for a pump
AU2015202357B2 (en) * 2008-06-13 2017-02-02 Weir Minerals Australia Ltd An adjustable side liner for a pump
US9759224B2 (en) 2008-06-13 2017-09-12 Weir Minerals Australia Ltd. Adjustable side liner for a pump
US20110142599A1 (en) * 2008-06-13 2011-06-16 Kevin Edward Burgess Adjustable side liner for a pump
US20110044827A1 (en) * 2009-08-24 2011-02-24 David Muhs Self priming pump assembly with a direct drive vacuum pump
US8998586B2 (en) 2009-08-24 2015-04-07 David Muhs Self priming pump assembly with a direct drive vacuum pump
US9051940B2 (en) 2011-07-01 2015-06-09 Itt Manufacturing Enterprises Llc. Method and apparatus for adjusting impeller/ring clearance in a pump
CN103758778A (en) * 2014-01-24 2014-04-30 温州市康而达实业有限公司 Horizontal centrifugal pump with adjusting guard plate
US20200063747A1 (en) * 2016-03-18 2020-02-27 Weir Slurry Group, Inc. Sealing Arrangement For Adjustable Elements Of A Pump
US10895265B2 (en) * 2016-03-18 2021-01-19 Weir Slurry Group, Inc. Sealing arrangement for adjustable elements of a pump
US11624367B2 (en) * 2017-03-03 2023-04-11 Varisco S.r.l. Centrifugal pump and method of adjusting the distance of the wear plate from the impeller of a centrifugal pump
WO2024134699A1 (en) * 2022-12-22 2024-06-27 Caprari S.P.A. Centrifugal pump

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