MD2432B2 - Offtake of the rotodynamic pump - Google Patents

Offtake of the rotodynamic pump

Info

Publication number
MD2432B2
MD2432B2 MD20010330A MD20010330A MD2432B2 MD 2432 B2 MD2432 B2 MD 2432B2 MD 20010330 A MD20010330 A MD 20010330A MD 20010330 A MD20010330 A MD 20010330A MD 2432 B2 MD2432 B2 MD 2432B2
Authority
MD
Moldova
Prior art keywords
offtake
tongue
diffuser channel
pump
inner surfaces
Prior art date
Application number
MD20010330A
Other languages
Romanian (ro)
Other versions
MD20010330A (en
MD2432C2 (en
Inventor
Alexandr Varfolomeev
Dumitru Bolgari
Constantin Carabadjac
Eugen Iliadi
Anatolii Mostepan
Original Assignee
Societatea Pe Actiuni Moldovah
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 Societatea Pe Actiuni Moldovah filed Critical Societatea Pe Actiuni Moldovah
Priority to MDA20010330A priority Critical patent/MD2432C2/en
Publication of MD20010330A publication Critical patent/MD20010330A/en
Publication of MD2432B2 publication Critical patent/MD2432B2/en
Publication of MD2432C2 publication Critical patent/MD2432C2/en

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to the pump engineering in particular to the offtakes of the rotodynamic pumps. The offtake contains a spiral case, a diffuser channel, the inner surfaces of which form a tongue, as well as a conic discharge pipe. Novelty of the invention consists in that the inner surfaces of the spiral case and of the diffuser channel, forming the tongue, intersect in longitudinal section in a point situated onto the pitch circle of the case spiral, the tongue surface from the diffuser channel end being made tangential to the pitch circle. The result of the invention consists in reducing the hydraulic loss into the offtake and in increasing the efficiency of the pump. Claims: 2Fig.: 3
MDA20010330A 2001-09-28 2001-09-28 Branch of the rotodynamic pump MD2432C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20010330A MD2432C2 (en) 2001-09-28 2001-09-28 Branch of the rotodynamic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20010330A MD2432C2 (en) 2001-09-28 2001-09-28 Branch of the rotodynamic pump

Publications (3)

Publication Number Publication Date
MD20010330A MD20010330A (en) 2003-12-31
MD2432B2 true MD2432B2 (en) 2004-04-30
MD2432C2 MD2432C2 (en) 2004-11-30

Family

ID=32026164

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20010330A MD2432C2 (en) 2001-09-28 2001-09-28 Branch of the rotodynamic pump

Country Status (1)

Country Link
MD (1) MD2432C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104929984A (en) * 2015-07-10 2015-09-23 南阳新威机电有限公司 Nuclear power system and residual heat removal pump thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2050475C1 (en) * 1992-11-10 1995-12-20 Александр Сергеевич Байбиков Centrifugal pump
DE19722353A1 (en) * 1997-05-28 1998-12-03 Klein Schanzlin & Becker Ag Centrifugal pump with an inlet guiding device
SE512154C2 (en) * 1997-11-18 2000-02-07 Flygt Ab Itt Impeller for centrifugal or semi-axial pumps intended to pump primarily wastewater
SE520416C2 (en) * 1997-11-18 2003-07-08 Flygt Ab Itt Impeller
RU2138691C1 (en) * 1997-11-25 1999-09-27 Рабинович Александр Исаакович Stage of submersible multi-stage pump
SE520417C2 (en) * 1997-12-18 2003-07-08 Flygt Ab Itt Pump of centrifugal or semi-axial type intended for pumping of uncontaminated wastewater
MD2128G2 (en) * 2001-08-30 2003-10-31 Сергей ГЕРАСИМЕНКО Multistage centrifugal pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104929984A (en) * 2015-07-10 2015-09-23 南阳新威机电有限公司 Nuclear power system and residual heat removal pump thereof

Also Published As

Publication number Publication date
MD20010330A (en) 2003-12-31
MD2432C2 (en) 2004-11-30

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Legal Events

Date Code Title Description
TH4A Change/correction in patent specification

Free format text: CHANGE/CORRECTION IN INID 57

KA4A Patent for invention lapsed due to non-payment of fees (with right of restoration)
MM4A Patent for invention definitely lapsed due to non-payment of fees