BR112018069611A2 - difusor e dispositivo de bomba multiestágio - Google Patents

difusor e dispositivo de bomba multiestágio

Info

Publication number
BR112018069611A2
BR112018069611A2 BR112018069611A BR112018069611A BR112018069611A2 BR 112018069611 A2 BR112018069611 A2 BR 112018069611A2 BR 112018069611 A BR112018069611 A BR 112018069611A BR 112018069611 A BR112018069611 A BR 112018069611A BR 112018069611 A2 BR112018069611 A2 BR 112018069611A2
Authority
BR
Brazil
Prior art keywords
diffuser blade
angle
diffuser
unit
flow passage
Prior art date
Application number
BR112018069611A
Other languages
English (en)
Other versions
BR112018069611B1 (pt
Inventor
Hiramoto Kazuya
Obuchi Masashi
Maeda Tsuyoshi
Original Assignee
Ebara Corp
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 Ebara Corp filed Critical Ebara Corp
Publication of BR112018069611A2 publication Critical patent/BR112018069611A2/pt
Publication of BR112018069611B1 publication Critical patent/BR112018069611B1/pt

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
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps
    • F04D1/08—Multi-stage pumps the stages being situated concentrically
    • 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
    • F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
    • 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
    • F04D11/00—Other rotary non-positive-displacement 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

Landscapes

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

Abstract

os difusores (250) são equipados com a unidade da caixa (260, 270) que define a passagem cilíndrica de fluxo para que o seu diâmetro diminua a partir da entrada do fluido para o sentido da saída, e com inúmeras unidades da lâmina do difusor (280) que estão dispostas na passagem cilíndrica de fluxo e dividem em espiral a passagem cilíndrica de fluxo. em relação às inúmeras unidades da lâmina do difusor (280), o ângulo, formado pela direção circunferencial em relação ao eixo de rotação e a direção da linha tangente da superfície da lâmina da unidade da lâmina do difusor em qualquer posição do plano meridional da unidade da caixa (260, 270), é definido como ângulo ßw da lâmina do difusor. este ângulo ßw (°) da lâmina do difusor varia com a quantidade de alteração ¿ßw que satisfaz a relação ¿ßw <2,4 × ¿xc em relação à quantidade de alteração da unidade ¿xc (mm) da posição do plano meridional. além disso, o ângulo da lâmina do difusor ßw se encontra menor do que 90°em todas as áreas.
BR112018069611-0A 2016-03-29 2017-03-29 Difusor e dispositivo de bomba multiestágio BR112018069611B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2016066008A JP6712159B2 (ja) 2016-03-29 2016-03-29 ディフューザ、及び多段ポンプ装置
JP2016-066008 2016-03-29
PCT/JP2017/012812 WO2017170640A1 (ja) 2016-03-29 2017-03-29 ディフューザ、及び多段ポンプ装置

Publications (2)

Publication Number Publication Date
BR112018069611A2 true BR112018069611A2 (pt) 2019-01-29
BR112018069611B1 BR112018069611B1 (pt) 2023-11-07

Family

ID=59964877

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018069611-0A BR112018069611B1 (pt) 2016-03-29 2017-03-29 Difusor e dispositivo de bomba multiestágio

Country Status (5)

Country Link
JP (1) JP6712159B2 (pt)
CN (1) CN108700078B (pt)
BR (1) BR112018069611B1 (pt)
TW (1) TWI716571B (pt)
WO (1) WO2017170640A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10760587B2 (en) * 2017-06-06 2020-09-01 Elliott Company Extended sculpted twisted return channel vane arrangement
US11181123B2 (en) 2019-03-22 2021-11-23 Apergy Esp Systems, Llc Downhole centrifugal pump diffuser with protuberant vanes
CN114688045B (zh) * 2020-12-25 2024-05-24 广东美的白色家电技术创新中心有限公司 风机组件和吸尘器
KR102573264B1 (ko) * 2021-05-24 2023-09-01 한국생산기술연구원 다단 원심 펌프

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2762210B2 (ja) * 1993-05-17 1998-06-04 株式会社荏原製作所 多段ポンプ
CN1114045C (zh) * 1998-04-24 2003-07-09 株式会社荏原制作所 混流泵
US9109602B2 (en) * 2011-05-13 2015-08-18 Baker Hughes Incorporated Diffuser bump vane profile
KR20130060778A (ko) * 2011-11-30 2013-06-10 에스티엑스중공업 주식회사 디퓨저 펌프
CN103591051A (zh) * 2013-11-07 2014-02-19 江苏大学 一种具有副叶片的空间导叶

Also Published As

Publication number Publication date
WO2017170640A1 (ja) 2017-10-05
TW201738462A (zh) 2017-11-01
BR112018069611B1 (pt) 2023-11-07
JP6712159B2 (ja) 2020-06-17
TWI716571B (zh) 2021-01-21
CN108700078A (zh) 2018-10-23
CN108700078B (zh) 2020-10-27
JP2017180193A (ja) 2017-10-05

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Legal Events

Date Code Title Description
B350 Update of information on the portal [chapter 15.35 patent gazette]
B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 29/03/2017, OBSERVADAS AS CONDICOES LEGAIS