US1743916A - Liner for centrifugal pumps - Google Patents
Liner for centrifugal pumps Download PDFInfo
- Publication number
- US1743916A US1743916A US355880A US35588029A US1743916A US 1743916 A US1743916 A US 1743916A US 355880 A US355880 A US 355880A US 35588029 A US35588029 A US 35588029A US 1743916 A US1743916 A US 1743916A
- Authority
- US
- United States
- Prior art keywords
- casing
- liner
- impeller
- side wall
- liner plate
- 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
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Classifications
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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
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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
- F04D29/40—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
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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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/622—Adjusting the clearances between rotary and stationary parts
Description
Jan. 14, 1930;
G. R. HARGIS LINER FOR GENTRIFUGAL PUMPS I Filed April 17, 192,9
M Q INVENTOR.
, 0494 a, (fling/1Q, v
Patented Jan. 14, 1930 UNITED STATES PATENT OFFICE"- GEORG'rE R. HARGIS, OF FREDERICK, MARYLAND, ASSIGNOR TO THE FREDERICK IRON &
STEEL COMPANY, OF FREDERICK, MARYLAND, A CORPORATION OF MARYLAND LINER FOR CEN'IRIFUGAL PUMPS Original application filed July 22, 1927, Serial No. 207,799. Divided and this application filed April 17,
1929. Serial My invention relates broadly to centrifugal pumps and more particularly to an arrangement for adjusting liner plates in centrifugal pumps.
This application is a division of my application Serial No. 207,799, filed July 22, 1927, for liner for centrifugal pumps.
One of the objects of my invention is to provide a construction of adjustable liner plate for centrifugal pumps for compensating for the wear which occurs between the impeller and the liner plate in the centrifugal pump.
Another object of my invention is to provide 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 efiiciency.
Still another object of my invention is to provide a construction of liner plate and securing means for the casing of a centrifugal pump, wherein the liner plate may be advanced to a predetermined position with re spect to the impeller at various times during the life of the pump, for compensating for inherent wear, for insuring that degree of clearance necessary and for maintaining the elficiency of the pump;
My invention will be more clearly understood from the specification hereinafter following by reference to the accompanying drawings, in which:
Figure 1 is a fragmentary cross-sectional view through a centrifugal pump showing one form of adjustable renewable liner plate with adjusting and locking device constructed in accordance with my invention; and Fig. 2 shows a modified construction of adjustable renewable liner plate where the liner plate may be locked in position with respect to the impeller.
Referring to the drawings in more detail, reference character 1 designates the rotatable shaft of the centrifugal pump carrying the member 2 rotatable within the centrif ugal ump casing 3. The pump casing 3 is clos eid at one side thereof by wall 4. The
packing 1 1 within the screw ture llaround the stud 10 which is squeezed tight by the follower for preventing any are. imposed suction intake pipe line is represented at 5 connectedby annular wall 6 with the casing 3. The adjustable renewable linerplate of my invention is designated at 7 as having an annular portion 8 which frictionally engages the suction pipe line 5 as a socket.
In Fig. l the liner plate 7 is provided with a plurality of bosses 9 into which studs 10 are screw threaded and project through screw threaded apertures 11 in the casing 6. The stud 10 isscrew threaded at its outer end to receive the nut 15'to lock into position a follower member 12 which is adjustable against threaded aperleakage from the pump. A locking nut 15 engages the screwthreaded stud 10 and serves to'secure the follower 12 ina predetermined position for selectively fixing the distance be tween thBlSLlIfiLG 16 of the liner 7 and the blades of the impeller 2.
In Fig. 2, I have illustrated a further modified form of adjustable renewable liner plate wherein two sets ofscrew members areprovided, one set constituting set screws 19 for exerting a thrust forceagainst the flange 20 of theliner plate 7 and"the other set of screw members constituting the screw devices 21 for holding the liner plate tightly in position after the'special relation'between the surface 16 and the edges of the blades onthe impeller 2 has been predetermined.
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 be understood that modifications may be made and that no limitations upon my invention are intended other than by the scope of the appended claims. j 1 j i e What I claim as new and desire to secure by Letters Patent of the United States isas follows? 9: l. j .w
1. p In aycentrifugal pump, a casing, an impeller rotatable within said casing, a side wall member interiorly positioned in said casing,
and means for advancing or retracting said side wall member within said casing with respect to the face of said impeller comprising a plurality of stud members secured in said side wall member and projectingthrough said casing, a follower member screw threaded into said casing concentric with each of said studs and securing means engaging said studs and bearing against said follower members for maintaining said side wall member in a selected position within said casing.
2. In a centrifugal pump, a casing, a suction intake pipe leading to said casing, an impeller rotatably mounted in said casing, a side wall member having an integrally connected circular hub portion extending into said suction intake pipe, and means for advancing or retracting said side wall memher from said casing with respect to said impeller comprising studs projecting from said side wall member through said casing, separate means screw threaded into said casing for centering said studs, and screw means engaging said studs and bearing nfiainst said separate means for locking said e member in a predetermined position with respect to said impeller.
3. A centrifugal pump comprising a casing, a suction intake pipe leading to said casing, an impeller rotatably mounted in said casing, a side wall member, an integral portion of: said side wall member fitting into said suction intake pipe, means for advancing or retracting said side wall member with respect to the interior of said casing comprising studs projecting normal to said side wall member through said casing, a screw threaded follower engaging said casing and surrounding each of said studs, and screw means engaging each of said studs and bearing against said screw threaded follower for locking said side wall member in a predetermined position with respect to said impeller.
4. A centrifugal pump comprising a casing, a suction intake pipe leading to said casing, an impeller rotatably mounted in said casing, a substantially circular wall. member having a hub portion fitting into the interior of said suction'intake pipe and adjustablelo'ng'itudinally with respect thereto, and means for selectively fixing said wall member in a re'determined position with respect to said impeller comprising a plurality of studs extending normal to said wall memher and passing through said casing, each having a cylindrical portion centered within said casing and screw threaded stud portion, a follower screw threaded into said casing and surrounding each stud, and a nut engaging the screw threaded portion of said stud and bearing against said follower.
In testimony whereof I aflix my signature.
GEORGE a. HARGIS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US355880A US1743916A (en) | 1927-07-22 | 1929-04-17 | Liner for centrifugal pumps |
Applications Claiming Priority (2)
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 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1743916A true US1743916A (en) | 1930-01-14 |
Family
ID=26902597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US355880A Expired - Lifetime US1743916A (en) | 1927-07-22 | 1929-04-17 | Liner for centrifugal pumps |
Country Status (1)
Country | Link |
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US (1) | US1743916A (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2461835A (en) * | 1949-02-15 | Double-acting centrifugal pump | ||
US2942556A (en) * | 1956-04-09 | 1960-06-28 | William H Growall | Fluid pump |
US3079866A (en) * | 1959-07-16 | 1963-03-05 | Texaco Inc | Modified centrifugal pump |
US3103845A (en) * | 1959-04-07 | 1963-09-17 | Porter Prec Products | Demountable retainer for punch and die sets |
US3130678A (en) * | 1961-04-28 | 1964-04-28 | William F Chenault | Centrifugal pump |
US3272137A (en) * | 1964-01-20 | 1966-09-13 | F E Myers & Bro Co | Self-priming pump |
US3490685A (en) * | 1967-05-22 | 1970-01-20 | Luwa Ltd | Self-cleaning fan |
US4419046A (en) * | 1979-05-09 | 1983-12-06 | Carlini Gerardo P V | High pressure centrifugal fluid delivery machine |
US4521151A (en) * | 1980-03-07 | 1985-06-04 | Joy Manufacturing Holdings Limited | Centrifugal slurry pump |
US4832565A (en) * | 1988-03-21 | 1989-05-23 | Sunstrand Corporation | Centrifugal pump |
US5249919A (en) * | 1992-12-22 | 1993-10-05 | Carrier Corporation | Method of mounting silencer in centrifugal compressor collector |
US5271713A (en) * | 1992-10-05 | 1993-12-21 | Deere & Company | Adjustable inlet for a harvester fan |
US5961281A (en) * | 1995-12-20 | 1999-10-05 | Hitachi, Ltd. | Turbocharger for internal combustion engine |
US6390768B1 (en) * | 1999-03-22 | 2002-05-21 | David Muhs | Pump impeller and related components |
US20070036643A1 (en) * | 2005-08-10 | 2007-02-15 | Envirotech Pumpsystems, Inc. | Tool-free adjustable clean out assembly for a pump |
US20090290979A1 (en) * | 2008-05-23 | 2009-11-26 | Mitsubishi Heavy Industries, Ltd. | Compressor housing |
US20140341705A1 (en) * | 2008-06-13 | 2014-11-20 | Weir Minerals Australia, Ltd. | Adjustable side liner for a pump |
IT201700024151A1 (en) * | 2017-03-03 | 2018-09-03 | Varisco S R L | CENTRIFUGAL PUMP AND METHOD FOR ADJUSTING THE DISTANCE OF THE WEAR PLATE FROM THE IMPELLER OF A CENTRIFUGAL PUMP |
WO2018158617A1 (en) * | 2017-03-03 | 2018-09-07 | Varisco S.P.A. | Centrifugal pump and method of adjusting the distance of the wear plate from the impeller of a centrifugal pump. |
WO2020030199A1 (en) * | 2018-08-06 | 2020-02-13 | 南京磁谷科技有限公司 | Structure for adjusting concentricity of air inlet passage and impeller of centrifugal compressor |
US11841173B2 (en) * | 2018-06-28 | 2023-12-12 | Danfoss A/S | Variable stage compressors |
-
1929
- 1929-04-17 US US355880A patent/US1743916A/en not_active Expired - Lifetime
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2461835A (en) * | 1949-02-15 | Double-acting centrifugal pump | ||
US2942556A (en) * | 1956-04-09 | 1960-06-28 | William H Growall | Fluid pump |
US3103845A (en) * | 1959-04-07 | 1963-09-17 | Porter Prec Products | Demountable retainer for punch and die sets |
US3079866A (en) * | 1959-07-16 | 1963-03-05 | Texaco Inc | Modified centrifugal pump |
US3130678A (en) * | 1961-04-28 | 1964-04-28 | William F Chenault | Centrifugal pump |
US3272137A (en) * | 1964-01-20 | 1966-09-13 | F E Myers & Bro Co | Self-priming pump |
US3490685A (en) * | 1967-05-22 | 1970-01-20 | Luwa Ltd | Self-cleaning fan |
US4419046A (en) * | 1979-05-09 | 1983-12-06 | Carlini Gerardo P V | High pressure centrifugal fluid delivery machine |
US4521151A (en) * | 1980-03-07 | 1985-06-04 | Joy Manufacturing Holdings Limited | Centrifugal slurry pump |
US4832565A (en) * | 1988-03-21 | 1989-05-23 | Sunstrand Corporation | Centrifugal pump |
US5271713A (en) * | 1992-10-05 | 1993-12-21 | Deere & Company | Adjustable inlet for a harvester fan |
US5249919A (en) * | 1992-12-22 | 1993-10-05 | Carrier Corporation | Method of mounting silencer in centrifugal compressor collector |
US5961281A (en) * | 1995-12-20 | 1999-10-05 | Hitachi, Ltd. | Turbocharger for internal combustion engine |
US6390768B1 (en) * | 1999-03-22 | 2002-05-21 | David Muhs | Pump impeller and related components |
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 |
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 |
US20140341705A1 (en) * | 2008-06-13 | 2014-11-20 | Weir Minerals Australia, Ltd. | Adjustable side liner for a pump |
US9759224B2 (en) * | 2008-06-13 | 2017-09-12 | Weir Minerals Australia Ltd. | Adjustable side liner for a pump |
IT201700024151A1 (en) * | 2017-03-03 | 2018-09-03 | Varisco S R L | CENTRIFUGAL PUMP AND METHOD FOR ADJUSTING THE DISTANCE OF THE WEAR PLATE FROM THE IMPELLER OF A CENTRIFUGAL PUMP |
WO2018158617A1 (en) * | 2017-03-03 | 2018-09-07 | Varisco S.P.A. | Centrifugal pump and method of adjusting the distance of the wear plate from the impeller of a centrifugal pump. |
CN110392786A (en) * | 2017-03-03 | 2019-10-29 | 瓦瑞斯科股份责任有限公司 | The method of the wearing plate and the distance between impeller of centrifugal pump and adjusting centrifugal pump |
RU2751118C2 (en) * | 2017-03-03 | 2021-07-08 | Вариско С.Р.Л. | Centrifugal pump and method for adjusting distance of wear-resistant plate from impeller of centrifugal pump |
RU2751118C9 (en) * | 2017-03-03 | 2021-12-16 | Вариско С.Р.Л. | Centrifugal pump and method for adjusting distance of wear-resistant plate from impeller of centrifugal 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 |
US11841173B2 (en) * | 2018-06-28 | 2023-12-12 | Danfoss A/S | Variable stage compressors |
WO2020030199A1 (en) * | 2018-08-06 | 2020-02-13 | 南京磁谷科技有限公司 | Structure for adjusting concentricity of air inlet passage and impeller of centrifugal compressor |
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