US3103892A - Pump or the like - Google Patents

Pump or the like Download PDF

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Publication number
US3103892A
US3103892A US70476A US7047660A US3103892A US 3103892 A US3103892 A US 3103892A US 70476 A US70476 A US 70476A US 7047660 A US7047660 A US 7047660A US 3103892 A US3103892 A US 3103892A
Authority
US
United States
Prior art keywords
elements
diaphragms
pumps
diffuser
vanes
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
US70476A
Other languages
English (en)
Inventor
Chester R Mcfarland
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.)
IMO Industries Inc
Delaval Turbine California Inc
Original Assignee
Delaval Turbine California Inc
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 Delaval Turbine California Inc filed Critical Delaval Turbine California Inc
Priority to US70476A priority Critical patent/US3103892A/en
Priority to GB39343/61A priority patent/GB999900A/en
Priority to CH1286261A priority patent/CH391469A/fr
Priority to DK455861AA priority patent/DK113825B/da
Priority to DE19611403853 priority patent/DE1403853A1/de
Application granted granted Critical
Publication of US3103892A publication Critical patent/US3103892A/en
Priority to NL7008084A priority patent/NL7008084A/xx
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
    • 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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
    • F04D17/125—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors the casing being vertically split
    • 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
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49236—Fluid pump or compressor making
    • Y10T29/49243—Centrifugal type

Definitions

  • FIGURE 1 is an axial section showing the pertinent parts of a pump constructed in accordance with the invention
  • FlGURE 2 is an elevation of a diffuser element located between the discharge of one impeller and the entrance to a subsequent one;
  • FIGURE 3 is an elevation side of FIGURE 2;
  • FIGURES 4 and 5 are diagrams illustrating the assemblies of interstage diaphragms provided in accordance with the invention.
  • FIGURE 6 is a diagram illustrating the form taken by a standard casting from which interstage diaphragms may be readily produced by machining.
  • the pump shown is of the barrel type, and except for the parts specially provided in accordance with the invention has a generally conventional structure and operates in conventional fashion.
  • An outer housing 2 is provided having a generally cylindrical form and designed to withstand the pressures involved.
  • This housing is provided with an inlet passage at 4 and a discharge passage at 6.
  • the housing is provided at its left-hand end with a shoulder 7 against which the casing assembly abuts under the high discharge pressure.
  • the housing is provided with looking at the right-hand a conventional closure '8, Whlh houses conventional packing and bearing arrangements which are not illustrated.
  • the bearing assembly generally indicated at 10.
  • the invention is concerned primarily with the barrel assembly within the huosing and details of the housing and otherstructures are not involved and are therefore not shown in detail. It need only be remarked that for'pumps of different lengths (i.e. different numbers of stages) different housing 2 will be provided, though the associated end closures, bearings, etc., may be standard for different size pumps. 7
  • the casing which is located within the housing ismade up of stacked elements "comprising the end element 12, the duplicate interstage diaphragms 14, and the outlet element 16. Concentric stacked arrangement of these elements in maintained by interlocking 'rabbets as will be evident from FIGURE 1. Nested'in the interstage diaphragms 1d are diffuser elements 18 secured bybolts 19. A shaft 20 has mounted thereon in conventional fashion the various impellers 22 of the stages involved, these being provided with the usual vanes. For pumps of different capacities these impellers will, in general, be different in the sense of having wider or narrower passages between the vanes; but in any individual multistage pump the impellers will generally be identical in usual pumps.
  • the invention provides simplification in the :matter of minimizing the variety of elements to be used by special forms and assemblies particularly of the interstage diaphragms and the diffuser assemblies or elements.
  • This diffuser element .18 comprises a cast disc which is of small axial extent except at its peripheral portions. It comprises diffuser vanes on the side facing the discharge of one impeller, cross-over passages for the liquid being pumped, and return passages and guide vanes on its opposite side arranged to direct the flow to the inlet of the next subsequent stage impeller.
  • the relatively thin central portion of this element is indicated at 21. Adjacent the periphery there are provided the diffuser vanes 23 which spiral outwardly from their inlet edges 25. On the opposite side of the disc there are the return vanes 27 which spiral inwardly from their inlet edges at 26 to their outlet edges at .23. As will be evident from FIGURE 3, in particular, cross-over passages 30 exist at the periphery of the element 18 to carry the liquid from one side to the other of the central portion 21. Closer to the shaft there are provided the redirecting vanes 36 to turn the inwardly spiraling flow substantially radially for entrance into the eye of the next stage impeller without substantial spin.
  • FIGURES 4 and 5 showing the assembly arrangement of interstage diaphragms, two adjacent ones of which are illustrated.
  • these diaphragms are arranged to provide a minimum of axial space for the diffuser elements, the space 40 having the typical dimension A (The space, as indicated, may involve both radial and conical wall portions; but the dimension ,A may be regarded as typical).
  • a typical wall thickness dimension is indicated at B From the fact that these typical dimensions are taken between radial wall portions, it will be evident that the interstage dimension,i.e.
  • the space of similar parts of the impellers and the other repetitive elements will be A +B
  • the space 40 is here indicated as the maximum space that may be desired in the case of a larger capacity impeller with a correspondingly axially wider diffuser element.
  • the space dimension A is now greater.
  • the wall dimension B, for the interstage diaphragms is now such that A +B is equal to Ari-B The interstage spacing is thus constant.
  • FIGURE 6 the outside outline of this indicates the shape of a casting 14A from which both the extreme size diaphragms 14 and 14' may be produced by simple turning.
  • a diaphragm such as 14 of maximum wall thickness
  • the shaded portion 42 may be removed.
  • the diaphragm of minimum wall thickness the shaded portion 44 may be removed.
  • machining may produce any diaphragm of intermediate wall thickness by partial removals of material at both the right and left. (The original casting may, of course, be provided with excess material such as indicated at 46 to provide for proper finish machining.)
  • the amply sized casting 14A and a casting for the diffuser element having an ample dimension between the faces 32 and 34 will sufiice for the construction and assemblage of pumps having different size impellers and/or different numbers of stages.
  • the diffuser elements will rest Within and may be secured in the cups formed within the interstage diaphragms, securing being achieved by bolts as indicated at 19.
  • the stacking of the interstage diaphragms will then result in the establishment of standard spacing for the various repetitive elements, including the impellers, along the shaft. The result is a completely satisfactory construction from the standpoint of operation with greatly simplified aspects of production of parts and their stock piling to meet the demands of various orders for pumps.
  • discs similar to the diffuser elements of the pumps will carry vanes on one or both sides to define diffusers (which may, of course, be vaneless) and nozzles as well as redirecting vanes, all to provide gas or liquid passages functioning conventionally but structurally having the advantages of the invention.
  • a multistage pump or the like comprising a rotary shaft, axially spaced vaned rotors carried by the shaft, a housing for said shaft and rotors, said housing comprising coaxially stacked peripherally abutting interstage diaphragms, one for each rotor, each of integral, vaneless and cup-shaped form, i.e., having a radially directed portion through which said shaft extends centrally and an outer peripheral portion projecting therefrom at one side of said radially directed portion, and disc-shaped elements in the spaces within each of said respective cup-shaped diaphragms, each of said elements comprising a radial portion, diffuser vanes integral with said radial portion, extending axially from said radial portion in one direction and spiralling outwardly, return vanes integral with said radial portion, extending axially from said radial portion in the opposite direction and spiralling inwardly, and redirecting vanes integral with said radial portion extending axially from said radial

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US70476A 1960-11-21 1960-11-21 Pump or the like Expired - Lifetime US3103892A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US70476A US3103892A (en) 1960-11-21 1960-11-21 Pump or the like
GB39343/61A GB999900A (en) 1960-11-21 1961-11-02 Improvements in or relating to the manufacture of pumps, compressors, turbines or the like
CH1286261A CH391469A (fr) 1960-11-21 1961-11-06 Procédé de fabrication d'un stator d'une turbo-machine
DK455861AA DK113825B (da) 1960-11-21 1961-11-16 Fremgangsmåde ved fremstilling af et statoraggregat til centrifugalpumper eller lignende strømningsmaskiner.
DE19611403853 DE1403853A1 (de) 1960-11-21 1961-11-18 Rotierende Einrichtung zum Bewegen eines fluessigen oder gasfoermigen Mediums
NL7008084A NL7008084A (OSRAM) 1960-11-21 1970-06-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70476A US3103892A (en) 1960-11-21 1960-11-21 Pump or the like

Publications (1)

Publication Number Publication Date
US3103892A true US3103892A (en) 1963-09-17

Family

ID=22095520

Family Applications (1)

Application Number Title Priority Date Filing Date
US70476A Expired - Lifetime US3103892A (en) 1960-11-21 1960-11-21 Pump or the like

Country Status (6)

Country Link
US (1) US3103892A (OSRAM)
CH (1) CH391469A (OSRAM)
DE (1) DE1403853A1 (OSRAM)
DK (1) DK113825B (OSRAM)
GB (1) GB999900A (OSRAM)
NL (1) NL7008084A (OSRAM)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288074A (en) * 1964-11-02 1966-11-29 Weber Ind Inc Submersible pump
US4299536A (en) * 1979-08-09 1981-11-10 Roy E. Roth Company Multi-stage pumps
US4536128A (en) * 1982-08-31 1985-08-20 Klein, Schanzlin & Becker Aktiengesellschaft Barrel housing for centrifugal fluid machines
US20120128477A1 (en) * 2009-07-31 2012-05-24 Man Diesel & Turbo Se Radial Compressor and Method for Producing a Radial Compressor
US20120156023A1 (en) * 2009-07-31 2012-06-21 Man Diesel & Turbo Se Radial Compressor And Method For Producing A Radial Compressor
US20120171014A1 (en) * 2011-01-05 2012-07-05 Hitachi Plant Technologies, Ltd. Barrel-type multistage pump
EP2469022A4 (en) * 2009-08-19 2015-01-07 Mitsubishi Heavy Ind Compressor Corp RADIAL GAS DETENDER
CN107762979A (zh) * 2017-10-19 2018-03-06 江苏大学 一种紧凑型液化天然气潜液泵导叶结构
US20190136869A1 (en) * 2017-11-09 2019-05-09 Mitsubishi Heavy Industries Compressor Corporation Rotary machine and diaphragm
CN111207080A (zh) * 2020-01-22 2020-05-29 陈科 一种带轴开中分便拆结构的化工泵
CN112761959A (zh) * 2021-02-06 2021-05-07 江苏大学 一种多级离心增压泵

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2516987B1 (fr) * 1981-11-23 1986-08-14 Peugeot Pompe rotative, notamment pour liquide de refroidissement d'un moteur a combustion interne
DE102009029069A1 (de) * 2009-09-01 2011-03-03 Robert Bosch Gmbh Zweistufige Kreiselpumpe

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL77715C (OSRAM) *
AT62273B (de) * 1912-12-09 1913-11-25 Ernst Vogel Schleuderpumpe.
GB191517283A (en) * 1915-12-09 1916-07-06 Hans Rufener Improvements in Turbine Pumps.
CH221387A (de) * 1940-12-30 1942-05-31 Diebold Geb Mehrstufige Zentrifugalpumpe.
US2620553A (en) * 1949-04-15 1952-12-09 Bendix Aviat Corp Method of manufacturing and assembling hydraulic pumps
US2786261A (en) * 1952-10-28 1957-03-26 Garrett Corp Method of forming passage structure
GB785419A (en) * 1955-03-22 1957-10-30 Sulzer Ag Radial flow compressors
GB826569A (en) * 1955-01-27 1960-01-13 Alfred Johann Buchi Methods for production of centrifugal compressors and compressors produced thereby
US2954739A (en) * 1956-01-03 1960-10-04 Tait Mfg Co The Pumps

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL77715C (OSRAM) *
AT62273B (de) * 1912-12-09 1913-11-25 Ernst Vogel Schleuderpumpe.
GB191517283A (en) * 1915-12-09 1916-07-06 Hans Rufener Improvements in Turbine Pumps.
CH221387A (de) * 1940-12-30 1942-05-31 Diebold Geb Mehrstufige Zentrifugalpumpe.
US2620553A (en) * 1949-04-15 1952-12-09 Bendix Aviat Corp Method of manufacturing and assembling hydraulic pumps
US2786261A (en) * 1952-10-28 1957-03-26 Garrett Corp Method of forming passage structure
GB826569A (en) * 1955-01-27 1960-01-13 Alfred Johann Buchi Methods for production of centrifugal compressors and compressors produced thereby
GB785419A (en) * 1955-03-22 1957-10-30 Sulzer Ag Radial flow compressors
US2954739A (en) * 1956-01-03 1960-10-04 Tait Mfg Co The Pumps

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288074A (en) * 1964-11-02 1966-11-29 Weber Ind Inc Submersible pump
US4299536A (en) * 1979-08-09 1981-11-10 Roy E. Roth Company Multi-stage pumps
US4536128A (en) * 1982-08-31 1985-08-20 Klein, Schanzlin & Becker Aktiengesellschaft Barrel housing for centrifugal fluid machines
US9360022B2 (en) * 2009-07-31 2016-06-07 Man Diesel & Turbo Se Radial compressor and method for producing a radial compressor
US20120128477A1 (en) * 2009-07-31 2012-05-24 Man Diesel & Turbo Se Radial Compressor and Method for Producing a Radial Compressor
US20120156023A1 (en) * 2009-07-31 2012-06-21 Man Diesel & Turbo Se Radial Compressor And Method For Producing A Radial Compressor
US9488189B2 (en) * 2009-07-31 2016-11-08 Man Diesel & Turbo Se Radial compressor and method for producing a radial compressor
EP2469022A4 (en) * 2009-08-19 2015-01-07 Mitsubishi Heavy Ind Compressor Corp RADIAL GAS DETENDER
US8985945B2 (en) 2009-08-19 2015-03-24 Mitsubishi Heavy Industries Compressor Corporation Radial gas expander
US9249804B2 (en) * 2011-01-05 2016-02-02 Hitachi, Ltd. Barrel-type multistage pump
US20120171014A1 (en) * 2011-01-05 2012-07-05 Hitachi Plant Technologies, Ltd. Barrel-type multistage pump
US9863427B2 (en) 2011-01-05 2018-01-09 Hitachi, Ltd. Barrel-type multistage pump
CN107762979A (zh) * 2017-10-19 2018-03-06 江苏大学 一种紧凑型液化天然气潜液泵导叶结构
US20190136869A1 (en) * 2017-11-09 2019-05-09 Mitsubishi Heavy Industries Compressor Corporation Rotary machine and diaphragm
US10876544B2 (en) * 2017-11-09 2020-12-29 Mitsubishi Heavy Industries Compressor Corporation Rotary machine and diaphragm
CN111207080A (zh) * 2020-01-22 2020-05-29 陈科 一种带轴开中分便拆结构的化工泵
CN111207080B (zh) * 2020-01-22 2020-12-15 乐清市芮易经济信息咨询有限公司 一种带轴开中分便拆结构的化工泵
CN112761959A (zh) * 2021-02-06 2021-05-07 江苏大学 一种多级离心增压泵
CN112761959B (zh) * 2021-02-06 2022-04-15 江苏大学 一种多级离心增压泵

Also Published As

Publication number Publication date
DE1403853A1 (de) 1968-10-24
CH391469A (fr) 1965-04-30
GB999900A (en) 1965-07-28
NL7008084A (OSRAM) 1970-10-26
DK113825B (da) 1969-04-28

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