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EP0045483A3 - Self-priming rotary pump, particularly for bringing liquids to their boiling point - Google Patents

Self-priming rotary pump, particularly for bringing liquids to their boiling point Download PDF

Info

Publication number
EP0045483A3
EP0045483A3 EP81105972A EP81105972A EP0045483A3 EP 0045483 A3 EP0045483 A3 EP 0045483A3 EP 81105972 A EP81105972 A EP 81105972A EP 81105972 A EP81105972 A EP 81105972A EP 0045483 A3 EP0045483 A3 EP 0045483A3
Authority
EP
European Patent Office
Prior art keywords
self
priming
centrifugal pump
boiling point
reservoir
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.)
Granted
Application number
EP81105972A
Other languages
German (de)
Other versions
EP0045483B1 (en
EP0045483A2 (en
Inventor
Wilfried Dr. Ing. Lehmann
Peter Ing.-Grad Fandrey
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.)
Sihi GmbH and Co KG
Original Assignee
Sihi GmbH and Co KG
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 Sihi GmbH and Co KG filed Critical Sihi GmbH and Co KG
Priority to AT81105972T priority Critical patent/ATE5433T1/en
Publication of EP0045483A2 publication Critical patent/EP0045483A2/en
Publication of EP0045483A3 publication Critical patent/EP0045483A3/en
Application granted granted Critical
Publication of EP0045483B1 publication Critical patent/EP0045483B1/en
Expired legal-status Critical Current

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
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/002—Regenerative pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/002—Regenerative pumps
    • F04D5/003—Regenerative pumps of multistage type
    • F04D5/006—Regenerative pumps of multistage type the stages being axially offset

Landscapes

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

Abstract

The invention relates to a centrifugal pump having a first centrifugal pump stage (2), which is located on the suction side and is not self-priming, and having a pump inlet nozzle (6), which is located axially at the level of the horizontal shaft (1), and having at least one centrifugal pump stage (3). which is located downstream and which, operating with the aid of auxiliary liquid, is self-priming. According to the invention, the self-priming capability and reliability of the pump, in particular for conveying media in the vicinity of their boiling point, are improved by arranging a liquid reservoir (13), of sufficient size, between two pump stages, the connection from this reservoir to the preceding centrifugal pump stage being located in the geodetically upper portion of the reservoir, and a seal (16) for closing the shaft clearance being located between the liquid reservoir (13) and the preceding centrifugal pump stage.
EP81105972A 1980-08-05 1981-07-29 Self-priming rotary pump, particularly for bringing liquids to their boiling point Expired EP0045483B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81105972T ATE5433T1 (en) 1980-08-05 1981-07-29 SELF-PRIMING CENTRIFUGAL PUMP, PARTICULARLY FOR PUMPING LIQUIDS NEAR THEIR BOILING POINT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3029604 1980-08-05
DE3029604 1980-08-05

Publications (3)

Publication Number Publication Date
EP0045483A2 EP0045483A2 (en) 1982-02-10
EP0045483A3 true EP0045483A3 (en) 1982-02-17
EP0045483B1 EP0045483B1 (en) 1983-11-23

Family

ID=6108913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81105972A Expired EP0045483B1 (en) 1980-08-05 1981-07-29 Self-priming rotary pump, particularly for bringing liquids to their boiling point

Country Status (9)

Country Link
US (1) US4390317A (en)
EP (1) EP0045483B1 (en)
AT (1) ATE5433T1 (en)
AU (1) AU542218B2 (en)
CA (1) CA1165624A (en)
DK (1) DK149932C (en)
ES (1) ES8206774A1 (en)
HK (1) HK39685A (en)
NZ (1) NZ197872A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553835B1 (en) * 1983-10-25 1986-02-28 Bertin & Cie FLUID COMPRESSION MACHINE WITH MULTIPLE SERIES COMPRESSION STAGES
DE3425656C2 (en) * 1984-07-12 1994-12-08 Sero Pumpenfabrik Gmbh Centrifugal pump
DE3539251A1 (en) * 1985-11-06 1987-05-14 Klein Schanzlin & Becker Ag MULTI-STAGE CENTRIFUGAL PUMP FOR CONVEYING LIQUID GAS
DE3717058A1 (en) * 1987-05-21 1988-12-08 Bayer Ag MIXER FOR MIXING AT LEAST TWO FLOWABLE SUBSTANCES, ESPECIALLY UNDERSTANDING OR. INITIATING A REACTION DURING MIXING
DE4113029A1 (en) * 1991-04-20 1992-10-22 Sihi Gmbh & Co Kg SELF-PRIMING CENTRIFUGAL PUMP FOR CONVEYING LIQUIDS NEAR YOUR BOILING POINT
DE4241406C2 (en) * 1992-12-09 2001-10-18 Bosch Gmbh Robert Blower housing
JPH0886298A (en) * 1994-09-19 1996-04-02 Hitachi Ltd Dry turbo vacuum pump
DE29513904U1 (en) * 1995-08-30 1997-01-09 Sihi GmbH & Co KG, 25524 Itzehoe Side channel centrifugal pump with stage packages in sheet metal construction
IT1398142B1 (en) * 2010-02-17 2013-02-14 Nuovo Pignone Spa SINGLE SYSTEM WITH COMPRESSOR AND INTEGRATED PUMP AND METHOD.
US9709060B2 (en) * 2012-09-03 2017-07-18 Sterling Industry Consult Gmbh Side-channel pump and method for operating same
US11560902B2 (en) 2019-01-25 2023-01-24 Pentair Flow Technologies, Llc Self-priming assembly for use in a multi-stage pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE711791C (en) * 1938-04-28 1941-10-07 Anna Dickow Geb Driemeyer Arrangement of the drive for a non-self-priming centrifugal pump
DE888207C (en) * 1951-08-10 1953-08-31 Siemens Ag Self-priming pump
DE1528826B2 (en) * 1951-01-28 1974-04-25 Siemen & Hinsch Mbh, 2210 Itzehoe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553066A (en) * 1944-06-30 1951-05-15 Southern John Self-priming centrifugal pump
US3385225A (en) * 1965-06-29 1968-05-28 Siemen & Hinsch Gmbh Rotary pump
DE2534740C3 (en) * 1975-08-04 1983-02-03 Franz 4630 Bochum Klaus Canned centrifugal pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE711791C (en) * 1938-04-28 1941-10-07 Anna Dickow Geb Driemeyer Arrangement of the drive for a non-self-priming centrifugal pump
DE1528826B2 (en) * 1951-01-28 1974-04-25 Siemen & Hinsch Mbh, 2210 Itzehoe
DE888207C (en) * 1951-08-10 1953-08-31 Siemens Ag Self-priming pump

Also Published As

Publication number Publication date
HK39685A (en) 1985-05-31
DK149932C (en) 1987-10-12
CA1165624A (en) 1984-04-17
AU542218B2 (en) 1985-02-14
NZ197872A (en) 1985-03-20
EP0045483B1 (en) 1983-11-23
ES504574A0 (en) 1982-08-16
DK149932B (en) 1986-10-27
ATE5433T1 (en) 1983-12-15
DK346881A (en) 1982-02-06
AU7369181A (en) 1982-02-11
US4390317A (en) 1983-06-28
EP0045483A2 (en) 1982-02-10
ES8206774A1 (en) 1982-08-16

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