IT1256730B - Pompa multistadio di tipo sommerso, provvista di elementi interni modulari in materiali antiusura. - Google Patents

Pompa multistadio di tipo sommerso, provvista di elementi interni modulari in materiali antiusura.

Info

Publication number
IT1256730B
IT1256730B ITMI922871A ITMI922871A IT1256730B IT 1256730 B IT1256730 B IT 1256730B IT MI922871 A ITMI922871 A IT MI922871A IT MI922871 A ITMI922871 A IT MI922871A IT 1256730 B IT1256730 B IT 1256730B
Authority
IT
Italy
Prior art keywords
impellers
impeller
shaft
relative
integral
Prior art date
Application number
ITMI922871A
Other languages
English (en)
Original Assignee
Lowara Spa
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 Lowara Spa filed Critical Lowara Spa
Publication of ITMI922871A0 publication Critical patent/ITMI922871A0/it
Priority to ITMI922871A priority Critical patent/IT1256730B/it
Priority to US08/161,517 priority patent/US5425618A/en
Priority to AT93120061T priority patent/ATE158388T1/de
Priority to DE0602576T priority patent/DE602576T1/de
Priority to DE69313989T priority patent/DE69313989T2/de
Priority to EP93120061A priority patent/EP0602576B1/en
Priority to DK93120061.2T priority patent/DK0602576T3/da
Priority to ES93120061T priority patent/ES2072237T3/es
Publication of ITMI922871A1 publication Critical patent/ITMI922871A1/it
Application granted granted Critical
Publication of IT1256730B publication Critical patent/IT1256730B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps
    • F04D1/063—Multi-stage pumps of the vertically split casing type
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Mechanical Sealing (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

Pompa multistadio sommersa, del tipo che prevede una camicia di contenimento, un albero ad essa coassiale collegato ad un motore elettrico ed una pluralità di stadi operativi solidali a detto albero ciascuno dei quali formato da una girante con anello frontale e da un distributore ad esso affacciato con interposizione di un elemento anulare di appoggio a forma di coppetta rovesciata, la quale pompa prevede la realizzazione di dette giranti a pale radiali e relativi distributori solidali a detta camicia in materiale di elevate caratteristiche antiusura, dette giranti essendo montate su detto albero e assialmente traslabili o flottanti con corsa prestabilita rispetto al relativo elemento a coppetta, mentre tra detto anello frontale di ogni girante e relativo elemento a coppetta è interposto almeno un elemento anulare di appoggio e tenuta per la girante, realizzato in materiale con caratteristiche antiusura superiori a quelle delle giranti, atto a sostenere le spinte assiali dei vari stadi e ad impedire qualsiasi trafilamento di fluido durante il funzionamento della pompa.
ITMI922871A 1992-12-16 1992-12-16 Pompa multistadio di tipo sommerso, provvista di elementi interni modulari in materiali antiusura. IT1256730B (it)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ITMI922871A IT1256730B (it) 1992-12-16 1992-12-16 Pompa multistadio di tipo sommerso, provvista di elementi interni modulari in materiali antiusura.
US08/161,517 US5425618A (en) 1992-12-16 1993-12-06 Multistage pump provided with modular internal components made of wearproof materials
DE69313989T DE69313989T2 (de) 1992-12-16 1993-12-13 Mehrstufige Pumpe
DE0602576T DE602576T1 (de) 1992-12-16 1993-12-13 Mehrstufige Pumpe aufgebaut mit modularen inneren Komponenten aus verschleissfesten Materialien.
AT93120061T ATE158388T1 (de) 1992-12-16 1993-12-13 Mehrstufige pumpe
EP93120061A EP0602576B1 (en) 1992-12-16 1993-12-13 Multistage pump
DK93120061.2T DK0602576T3 (da) 1992-12-16 1993-12-13 Flertrinspumpe
ES93120061T ES2072237T3 (es) 1992-12-16 1993-12-13 Bomba de etapas multiples.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI922871A IT1256730B (it) 1992-12-16 1992-12-16 Pompa multistadio di tipo sommerso, provvista di elementi interni modulari in materiali antiusura.

Publications (3)

Publication Number Publication Date
ITMI922871A0 ITMI922871A0 (it) 1992-12-16
ITMI922871A1 ITMI922871A1 (it) 1994-06-16
IT1256730B true IT1256730B (it) 1995-12-15

Family

ID=11364476

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI922871A IT1256730B (it) 1992-12-16 1992-12-16 Pompa multistadio di tipo sommerso, provvista di elementi interni modulari in materiali antiusura.

Country Status (7)

Country Link
US (1) US5425618A (it)
EP (1) EP0602576B1 (it)
AT (1) ATE158388T1 (it)
DE (2) DE69313989T2 (it)
DK (1) DK0602576T3 (it)
ES (1) ES2072237T3 (it)
IT (1) IT1256730B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09264293A (ja) * 1996-03-29 1997-10-07 Ebara Corp セラミックス製羽根車の取付構造
JP3352924B2 (ja) * 1997-09-30 2002-12-03 株式会社荏原製作所 流体機械
US5993153A (en) * 1998-01-23 1999-11-30 Ingersoll-Dresser Pump Company Open bowl for a vertical turbine pump
RU2330187C1 (ru) * 2006-10-30 2008-07-27 Шлюмбергер Текнолоджи Б.В. (Schlumberger Technology B.V.) Погружной электрический насос
US8534366B2 (en) * 2010-06-04 2013-09-17 Zeitecs B.V. Compact cable suspended pumping system for lubricator deployment
US12078185B2 (en) 2019-05-29 2024-09-03 Fluid Handling Llc Bearing-less turbine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE460809A (it) *
FR1263094A (fr) * 1960-07-25 1961-06-05 Tait Mfg Co The Pompes centrifuges submersibles
US3285185A (en) * 1964-12-10 1966-11-15 Goulds Pumps Submersible pump
US3437045A (en) * 1967-08-31 1969-04-08 Tait Mfg Co The Submersible pump
US4511307A (en) * 1983-09-02 1985-04-16 Dresser Industries, Inc. Centrifugal pump
US4872808A (en) * 1987-06-22 1989-10-10 Oil Dynamics, Inc. Centrifugal pump modular bearing support for pumping fluids containing abrasive particles
DE3826472A1 (de) * 1988-08-04 1990-02-08 Klein Schanzlin & Becker Ag Kreiselpumpe keramischer bauart
US5088893A (en) * 1989-02-24 1992-02-18 The Carborundum Company Molten metal pump
US5133639A (en) * 1991-03-19 1992-07-28 Sta-Rite Industries, Inc. Bearing arrangement for centrifugal pump
US5186604A (en) * 1991-12-23 1993-02-16 The United States Of America As Represented By The Secretary Of The Navy Electro-rheological disk pump

Also Published As

Publication number Publication date
EP0602576B1 (en) 1997-09-17
DE602576T1 (de) 1995-10-12
ITMI922871A1 (it) 1994-06-16
DE69313989T2 (de) 1998-02-05
ITMI922871A0 (it) 1992-12-16
ES2072237T1 (es) 1995-07-16
DE69313989D1 (de) 1997-10-23
EP0602576A1 (en) 1994-06-22
ATE158388T1 (de) 1997-10-15
US5425618A (en) 1995-06-20
DK0602576T3 (da) 1998-05-11
ES2072237T3 (es) 1997-12-16

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961223