US3476488A - Pump with spherical pump housing - Google Patents

Pump with spherical pump housing Download PDF

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Publication number
US3476488A
US3476488A US679713A US3476488DA US3476488A US 3476488 A US3476488 A US 3476488A US 679713 A US679713 A US 679713A US 3476488D A US3476488D A US 3476488DA US 3476488 A US3476488 A US 3476488A
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US
United States
Prior art keywords
pump
housing
spherical
impeller
socket
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
Application number
US679713A
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English (en)
Inventor
Lars Axel Chambert
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.)
Svenska Maskinverken AB
Original Assignee
Svenska Maskinverken AB
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 Svenska Maskinverken AB filed Critical Svenska Maskinverken AB
Application granted granted Critical
Publication of US3476488A publication Critical patent/US3476488A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/913—Inlet and outlet with concentric portions

Definitions

  • the pump comprises a spherical pump housing 1 with a pump impeller 2 of conventional construction placed diametrically in relation to the inlet 3.
  • the pump impeller is driven by an engine 4 suspended below the pump.
  • the medium. flow is received by the pump through an inlet socket at 3 and advanced to the pump impeller 2 via a passage '5.
  • Said passage extends symmetrically with respect to rotation about the diameter between the point of the pump impeller and the centre of the inlet socket.
  • the passage may be designed as a nozzle, as in the figure, or as a pipe.
  • the passage 6 from the pump impeller can be designed either as a circular channel or as a circular diffuser, the external limiting surface of the passage 6 being the pump housing wall.
  • the internal limiting surface is a shell 7 which is symmetrical with respect to rotation and the axis of which coincides with the central axis of the pump. According to the design and position of said shell, a circular channel or a circular diffuser is obtained.
  • a number of guide bars 8 are arranged in the passage 6 for improving the flow and reducing the losses in this portion.
  • the outlet from the pump can be arranged in three different ways:
  • FIG. 1 The outlet is arranged in the form of a great number of smaller sockets 9 on the spherical pump housmg.
  • FIG. 2 The outlet is arranged in the form of an annular channel 10 extending concentrically all around the inlet passage 3.
  • FIG. 3 The outlet is arranged in the form of a single socket 11 adjacent the inlet 3 and of approximately the same dimension as the inlet.
  • the pump impeller 2 is connected with the drive shaft 12 by a wedge 13 and retained in position by a hasp nut 14 which is locked by a screw 15.
  • the drive shaft 12 is guided in a sleeve 16 which is suspended in the bottom socket 21 of the pump housing via a number of sealing rings 17 and a locking ring 18.
  • the locking ring is placed in a groove in the socket 21 and locked by the guide sleeve 16.
  • the locking ring 18 may be designed as an expanding ring or as a split ring.
  • the housing of the pump engine is directly connected with the guide sleeve 16 and, thus, is suspended in the pump housing 1 via said sleeve 16 and the socket 21.
  • the lead-in of the drive shaft 12 is further guided to the bottom socket 21 by the locking washer 19 which is retained in position by the bolts 20.
  • the overpressure in the pump is utilized.
  • the overpressure acts upon the guide sleeve 16 which presses the sealing rings 17 against the locking ring 18 and the bottom socket 21.
  • the bolts 20 are pre-stressed to a suitable value.
  • connection between the pump housing and the pump engine is loosened by removing the locking washer 19 and lifting up the pump engine-guide sleeve, so that the locking ring 18 is exposed and can be removed.
  • the clearance at 22 is made in accordance therewith.
  • the pump housing By designing the pump housing in the said way it is possible to utilize the strength-technical advantages of the spherical vessel with respect to the wall thickness. This is of special advantage at very high overpressure in the pump.
  • the smaller wall thickness, in addition to a pure saving in material also results in lower heat stresses, which is of great importance at transient temperature curves of the medium pumped.
  • the pump has a wide field of application.
  • the selected alternative at the same time, can simplify that part of the installation which technically borders on the pump.
  • a pump comprising: a unitary, spherical housing; a 'wall defining an inlet passage means extending from the exterior of the top of said housing, diametrically across the interior of said housing to a point adjacent the bottom of said housing, said wall and the bottom interior surface of said housing forming a pumping chamber and said wall of said inlet passage means having a 'bottom opening adjacent said bottom of said housing; impeller means passing through an opening in the bottom of said housing and having a rotatable impeller with its suction side in open communication with said bottom opening in said inlet means and its discharge side in open communication with the annular space formed between the wall of said inlet means and the bottom interior surface of said housing; outlet means extending through said housing to the exterior thereof adjacent the upper portion of said housing; and connection and sealing means connecting said impeller means to said bottom wall of said housing.
  • a pump in accordance with claim 1 wherein the inlet passage means is of gradually reduced cross section toward its bottom opening.
  • a pump in accordance with claim 1 wherein the bottom of the housing has a downwardly extending socket and the drive shaft of the rotatable impeller is mounted through a sleeve provided with sealing rings disposed in a shoulder circumferentially formed about said impeller sleeve and said impeller sleeve is pressed into fluid-tight engagement with the inside of said socket through said sealing rings.
  • a pump in accordance with claim 4 wherein a looking ring is disposed inside the socket and the sealing rings are pressed against said locking ring.
  • a pump in accordance with claim 4 wherein a separate locking washer surrounds the lower portion of said sleeve and fastening means pass from the impeller sleeve through said washer to permit the application of pressure simultaneously between said washer and the bottom of the socket and the impeller sleeve and the scaling rings against the interior of said socket.
  • outlet means includes a plurality of discharge outlets through the upper portion of the side wall of the housing. 10.
  • the outlet means is an annular passage surrounding the upper end of the inlet passage means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US679713A 1966-11-04 1967-11-01 Pump with spherical pump housing Expired - Lifetime US3476488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15130/66A SE316376B (enrdf_load_stackoverflow) 1966-11-04 1966-11-04

Publications (1)

Publication Number Publication Date
US3476488A true US3476488A (en) 1969-11-04

Family

ID=20300188

Family Applications (1)

Application Number Title Priority Date Filing Date
US679713A Expired - Lifetime US3476488A (en) 1966-11-04 1967-11-01 Pump with spherical pump housing

Country Status (4)

Country Link
US (1) US3476488A (enrdf_load_stackoverflow)
CH (1) CH473317A (enrdf_load_stackoverflow)
GB (1) GB1163165A (enrdf_load_stackoverflow)
SE (1) SE316376B (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910714A (en) * 1974-12-11 1975-10-07 Us Energy Liquid metal pump for nuclear reactors
US3947154A (en) * 1973-06-19 1976-03-30 Klein, Schanzlin & Becker Aktiengesellschaft Pump assembly for circulation of coolant in boiling water reactors or the like
US4115029A (en) * 1973-01-26 1978-09-19 Klein, Schanzlin & Becker Aktiengesellschaft Centrifugal pump
US4138201A (en) * 1973-02-02 1979-02-06 Ksb Kernkraftwerkspumpen Gmbh Pump for use in nuclear reactor plants and anchoring means therefor
US4177008A (en) * 1973-01-26 1979-12-04 Klein, Schanzlin & Becker Aktiengesellschaft Centrifugal pump
US4427337A (en) 1981-02-17 1984-01-24 The United States Of America As Represented By The United States Department Of Energy Bearing for liquid metal pump
US4938662A (en) * 1987-01-21 1990-07-03 Hitachi, Ltd. Mechanical pump equipment
EP1293677A3 (de) * 2001-09-14 2004-01-14 Wilo Ag Pumpe im Ventilgehäuse
CN103267031A (zh) * 2013-05-30 2013-08-28 哈尔滨电气动力装备有限公司 600mw火电站超超临界锅炉用强制循环泵的水力部件
WO2015042634A1 (en) 2013-04-10 2015-04-02 Weir Minerals Australia Ltd Pump impeller
CN107269587A (zh) * 2017-04-26 2017-10-20 合肥皖化电泵有限公司 一种带抗压泵壳的炉水循环泵

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US735692A (en) * 1903-03-30 1903-08-11 John Watson Alvord High-speed rotary pump.
CH88945A (de) * 1920-07-06 1921-08-16 Kauter Franz Zentrifugalpumpe.
DE378906C (de) * 1920-08-07 1923-08-07 Eduard Esser & Co Flottenkreislaufpumpe fuer Vorrichtungen zum Nassbehandeln von Textilgut
DE455092C (de) * 1928-01-25 Samuel Maroger Kreiselpumpe, bei der die Saugwirkung durch den Unterdruck hervorgebracht wird, der sich an der Rueckseite in einer Fluessigkeit umlaufender Duesen bildet
GB262458A (en) * 1925-12-07 1928-02-16 Bbc Brown Boveri & Cie Improvements in and relating to centrifugal pumps, and compressors and turbines and the like
AT124621B (de) * 1930-07-05 1931-09-25 Anton Gentil Umwälzschleuderpumpe.
FR807884A (fr) * 1935-10-10 1937-01-23 Condensation Application Mec Perfectionnement aux installations de pompage et notamment aux installations d'extraction d'eau de condensation
US2114780A (en) * 1935-04-15 1938-04-19 Juelson Agnes Suction cleaner
GB572053A (en) * 1944-02-04 1945-09-20 William Ernest Wyatt Millingto Improvements in and relating to centrifugal pumps
US2887958A (en) * 1952-06-30 1959-05-26 Arthur P Davidson Pump
US3160107A (en) * 1962-10-02 1964-12-08 Allis Chalmers Mfg Co Split casing pump
US3282221A (en) * 1964-10-12 1966-11-01 Allis Chalmers Mfg Co End sealing arrangement for split casing pump

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE455092C (de) * 1928-01-25 Samuel Maroger Kreiselpumpe, bei der die Saugwirkung durch den Unterdruck hervorgebracht wird, der sich an der Rueckseite in einer Fluessigkeit umlaufender Duesen bildet
US735692A (en) * 1903-03-30 1903-08-11 John Watson Alvord High-speed rotary pump.
CH88945A (de) * 1920-07-06 1921-08-16 Kauter Franz Zentrifugalpumpe.
DE378906C (de) * 1920-08-07 1923-08-07 Eduard Esser & Co Flottenkreislaufpumpe fuer Vorrichtungen zum Nassbehandeln von Textilgut
GB262458A (en) * 1925-12-07 1928-02-16 Bbc Brown Boveri & Cie Improvements in and relating to centrifugal pumps, and compressors and turbines and the like
AT124621B (de) * 1930-07-05 1931-09-25 Anton Gentil Umwälzschleuderpumpe.
US2114780A (en) * 1935-04-15 1938-04-19 Juelson Agnes Suction cleaner
FR807884A (fr) * 1935-10-10 1937-01-23 Condensation Application Mec Perfectionnement aux installations de pompage et notamment aux installations d'extraction d'eau de condensation
GB572053A (en) * 1944-02-04 1945-09-20 William Ernest Wyatt Millingto Improvements in and relating to centrifugal pumps
US2887958A (en) * 1952-06-30 1959-05-26 Arthur P Davidson Pump
US3160107A (en) * 1962-10-02 1964-12-08 Allis Chalmers Mfg Co Split casing pump
US3282221A (en) * 1964-10-12 1966-11-01 Allis Chalmers Mfg Co End sealing arrangement for split casing pump

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115029A (en) * 1973-01-26 1978-09-19 Klein, Schanzlin & Becker Aktiengesellschaft Centrifugal pump
US4177008A (en) * 1973-01-26 1979-12-04 Klein, Schanzlin & Becker Aktiengesellschaft Centrifugal pump
US4138201A (en) * 1973-02-02 1979-02-06 Ksb Kernkraftwerkspumpen Gmbh Pump for use in nuclear reactor plants and anchoring means therefor
US3947154A (en) * 1973-06-19 1976-03-30 Klein, Schanzlin & Becker Aktiengesellschaft Pump assembly for circulation of coolant in boiling water reactors or the like
US3910714A (en) * 1974-12-11 1975-10-07 Us Energy Liquid metal pump for nuclear reactors
US4427337A (en) 1981-02-17 1984-01-24 The United States Of America As Represented By The United States Department Of Energy Bearing for liquid metal pump
US4938662A (en) * 1987-01-21 1990-07-03 Hitachi, Ltd. Mechanical pump equipment
EP1293677A3 (de) * 2001-09-14 2004-01-14 Wilo Ag Pumpe im Ventilgehäuse
WO2015042634A1 (en) 2013-04-10 2015-04-02 Weir Minerals Australia Ltd Pump impeller
CN103267031A (zh) * 2013-05-30 2013-08-28 哈尔滨电气动力装备有限公司 600mw火电站超超临界锅炉用强制循环泵的水力部件
CN107269587A (zh) * 2017-04-26 2017-10-20 合肥皖化电泵有限公司 一种带抗压泵壳的炉水循环泵

Also Published As

Publication number Publication date
CH473317A (de) 1969-05-31
SE316376B (enrdf_load_stackoverflow) 1969-10-20
GB1163165A (en) 1969-09-04

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