GB1201721A - A single-stage or multistage self-priming pump - Google Patents

A single-stage or multistage self-priming pump

Info

Publication number
GB1201721A
GB1201721A GB30910/68A GB3091068A GB1201721A GB 1201721 A GB1201721 A GB 1201721A GB 30910/68 A GB30910/68 A GB 30910/68A GB 3091068 A GB3091068 A GB 3091068A GB 1201721 A GB1201721 A GB 1201721A
Authority
GB
United Kingdom
Prior art keywords
pump
impeller
reduction element
guide duct
stage
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
Application number
GB30910/68A
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.)
Muanyagipari Kutato Intezet
Original Assignee
Muanyagipari Kutato Intezet
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 Muanyagipari Kutato Intezet filed Critical Muanyagipari Kutato Intezet
Publication of GB1201721A publication Critical patent/GB1201721A/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
    • F04D9/06—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock of jet 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
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage 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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • 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
    • F04D9/004—Priming of not self-priming pumps
    • F04D9/005—Priming of not self-priming pumps by adducting or recycling liquid

Abstract

1,201,721. Priming centrifugal pumps. MUANYAGIPARI KUTATO INTEZET. June 28, 1968 [July 7, 1967], No.30910/68. Heading F1C. A self-priming pump comprises a guide duct of annular cross-section connecting the outflow area of the impeller to a swirl reduction element, a jet pump being arranged between the swirl reduction element and the inflow area of the impeller and connected to the suction space of the pump, and a second swirl reduction element leading from the guide duct into a pressure space. In the two-stage pump shown in Fig. 3 the liquid remaining in the pump after the previous operation is recirculated by the fist-stage impeller 5 during priming, the liquid passing via a rotary vaneless annular guide duct 6a forming an extension of the impeller to a stationary bladed swirl reduction element 7 contained in a stationary annular guide duct 6 and there via the nozzles 8 and diffuses 4 of a jet pump to the eye of the impeller 5. Air in the suction branch 1 is entrained by the jet pump and mixes with the recirculated liquid. The air is separated centrifugally from the recirculated liquid in the guide duct 6a and passes via slots 18, a second bladed swirl reduction element 9, a pressure space 10 and a duct 17 to the second stage of the pump. Transverse passages 12, 13 formed in the swirl reduction element 7 provides communication between the suction branch 1 and the suction space 2 surrounding the jet pump and between the pressure space 10 and the duct 17. In a single-stage embodiment Figs. 1 and 2 (not shown), the rotary guide duct 6a and the front shroud of the impeller (5) are omitted. Suction openings (14) may be provided in the diffuser(4). Several concentric jet pumps may be provided.
GB30910/68A 1967-07-07 1968-06-28 A single-stage or multistage self-priming pump Expired GB1201721A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUMU000381 1967-07-07

Publications (1)

Publication Number Publication Date
GB1201721A true GB1201721A (en) 1970-08-12

Family

ID=10999648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30910/68A Expired GB1201721A (en) 1967-07-07 1968-06-28 A single-stage or multistage self-priming pump

Country Status (8)

Country Link
AT (1) AT288166B (en)
CH (1) CH484369A (en)
CS (1) CS158368B1 (en)
DE (1) DE1703603C3 (en)
FR (1) FR1582550A (en)
GB (1) GB1201721A (en)
PL (1) PL69668B1 (en)
SE (1) SE338926B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0323384A2 (en) * 1987-12-28 1989-07-05 Bombas Electricas, S.A. (Boelsa) Centrifugal pump
WO1998023864A1 (en) 1996-11-27 1998-06-04 Calpeda S.P.A. Diffuser and conveyor device for a single-impeller centrigugal self-priming pump
WO2023236276A1 (en) * 2022-06-09 2023-12-14 宁波君禾智能科技有限公司 Self-priming jet pump

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3718273C2 (en) * 1986-09-01 1994-12-15 Apollowerk Goesnitz Gmbh Self-priming horizontal radial centrifugal pump
DE4333612C1 (en) * 1993-10-01 1995-02-02 Keld Gabelgaard Suction method and devices for this
EP2505842B1 (en) * 2011-03-29 2019-12-25 Grundfos Management a/s Multi stage centrifugal pump system
CN109268274B (en) * 2018-12-06 2020-04-28 山东金鹏石化设备有限公司 Centrifugal pump and assembling method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0323384A2 (en) * 1987-12-28 1989-07-05 Bombas Electricas, S.A. (Boelsa) Centrifugal pump
EP0323384A3 (en) * 1987-12-28 1989-11-29 Bombas Electricas, S.A. (Boelsa) Centrifugal pump
WO1998023864A1 (en) 1996-11-27 1998-06-04 Calpeda S.P.A. Diffuser and conveyor device for a single-impeller centrigugal self-priming pump
WO2023236276A1 (en) * 2022-06-09 2023-12-14 宁波君禾智能科技有限公司 Self-priming jet pump

Also Published As

Publication number Publication date
FR1582550A (en) 1969-10-03
DE1703603B2 (en) 1974-08-01
DE1703603C3 (en) 1975-03-13
SE338926B (en) 1971-09-20
CS158368B1 (en) 1974-11-25
AT288166B (en) 1971-02-25
DE1703603A1 (en) 1972-04-06
PL69668B1 (en) 1973-08-31
CH484369A (en) 1970-01-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee