JPS56162298A - Diaphragm for centrifugal compressor - Google Patents

Diaphragm for centrifugal compressor

Info

Publication number
JPS56162298A
JPS56162298A JP6540280A JP6540280A JPS56162298A JP S56162298 A JPS56162298 A JP S56162298A JP 6540280 A JP6540280 A JP 6540280A JP 6540280 A JP6540280 A JP 6540280A JP S56162298 A JPS56162298 A JP S56162298A
Authority
JP
Japan
Prior art keywords
diaphragm
locking parts
return
diffuser
attached
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.)
Pending
Application number
JP6540280A
Other languages
Japanese (ja)
Inventor
Haruo Miura
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6540280A priority Critical patent/JPS56162298A/en
Publication of JPS56162298A publication Critical patent/JPS56162298A/en
Pending 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
    • 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
    • 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
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers

Landscapes

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

Abstract

PURPOSE: To make it possible to increase the sectional areas of the locking parts of a return vane and enable said locking parts to be prevented from being damaged by excessive stresses, by a method wherein a diffuser diaphragm is attached to a return diaphragm by inserting the locking parts of a return vane into the dovetail grooves in the return diaphragm.
CONSTITUTION: Locking parts 6a and 6b of a return vane 6 are inserted into dovetail grooves 4b and 4c formed in a return diaphragm 4. By said engagement between the dovetail grooves 4b and 4c and the locking parts 6a and 6b, a diffuser diaphragm 5 is attached to the return diaphragm 4. Thereby, it is possible to increase the sectional areas of the locking parts 6a and 6b through which the diffuser diaphragm 5 is attached to the return diaphragm 4. Moreover, because the forming positions of said locking parts 6a and 6b are in the vicinities of the front and rear edges of the return vane 6, the deformation of the diffuser diaphragm 5 on the inner diameter side can be made sufficiently small. In addition, because no excessive stresses are produced at the locking parts 6a and 6b, damage thereto can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
JP6540280A 1980-05-19 1980-05-19 Diaphragm for centrifugal compressor Pending JPS56162298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6540280A JPS56162298A (en) 1980-05-19 1980-05-19 Diaphragm for centrifugal compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6540280A JPS56162298A (en) 1980-05-19 1980-05-19 Diaphragm for centrifugal compressor

Publications (1)

Publication Number Publication Date
JPS56162298A true JPS56162298A (en) 1981-12-14

Family

ID=13285977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6540280A Pending JPS56162298A (en) 1980-05-19 1980-05-19 Diaphragm for centrifugal compressor

Country Status (1)

Country Link
JP (1) JPS56162298A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003201998A (en) * 2001-10-18 2003-07-18 Nuovo Pignone Holding Spa Stationary blade array of return channel for two dimensional centrifugal stage of multi-stage centrifugal compressor with improved efficiency
WO2010129214A3 (en) * 2009-04-27 2011-04-21 Elliott Company Boltless multi-part diaphragm for use with a centrifugal compressor
JP2016514228A (en) * 2013-02-27 2016-05-19 ドレッサー ランド カンパニーDresser−Rand Company Construction method of internal cooling diaphragm for centrifugal compressor
WO2016185592A1 (en) * 2015-05-21 2016-11-24 三菱重工業株式会社 Compressor
ITUA20161854A1 (en) * 2016-03-21 2017-09-21 Nuovo Pignone Tecnologie Srl Centrifugal compressor with diffuser blades without flow loss and assembly method of a centrifugal compressor
EP3611346A1 (en) * 2018-08-17 2020-02-19 Rolls-Royce Corporation Diffuser having platform vanes

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003201998A (en) * 2001-10-18 2003-07-18 Nuovo Pignone Holding Spa Stationary blade array of return channel for two dimensional centrifugal stage of multi-stage centrifugal compressor with improved efficiency
WO2010129214A3 (en) * 2009-04-27 2011-04-21 Elliott Company Boltless multi-part diaphragm for use with a centrifugal compressor
US8157517B2 (en) 2009-04-27 2012-04-17 Elliott Company Boltless multi-part diaphragm for use with a centrifugal compressor
JP2012525524A (en) * 2009-04-27 2012-10-22 エリオット・カンパニー Boltless double part diaphragm used for centrifugal compressor
JP2016514228A (en) * 2013-02-27 2016-05-19 ドレッサー ランド カンパニーDresser−Rand Company Construction method of internal cooling diaphragm for centrifugal compressor
US10584721B2 (en) 2013-02-27 2020-03-10 Dresser-Rand Company Method of construction for internally cooled diaphragms for centrifugal compressor
US10400790B2 (en) 2015-05-21 2019-09-03 Mitsubishi Heavy Industries Compressor Corporation Compressor
WO2016185592A1 (en) * 2015-05-21 2016-11-24 三菱重工業株式会社 Compressor
WO2017162553A1 (en) * 2016-03-21 2017-09-28 Nuovo Pignone Tecnologie Srl Centrifugal compressor with leakage-free diffuser blades and method of assembling a centrifugal compressor
JP2019509426A (en) * 2016-03-21 2019-04-04 ヌオーヴォ・ピニォーネ・テクノロジー・ソチエタ・レスポンサビリタ・リミタータＮｕｏｖｏ Ｐｉｇｎｏｎｅ Ｔｅｃｎｏｌｏｇｉｅ Ｓ．Ｒ．Ｌ． Centrifugal compressor having a diffuser blade that does not leak and method of assembling the centrifugal compressor
ITUA20161854A1 (en) * 2016-03-21 2017-09-21 Nuovo Pignone Tecnologie Srl Centrifugal compressor with diffuser blades without flow loss and assembly method of a centrifugal compressor
EP3611346A1 (en) * 2018-08-17 2020-02-19 Rolls-Royce Corporation Diffuser having platform vanes
US10731660B2 (en) 2018-08-17 2020-08-04 Rolls-Royce Corporation Diffuser having platform vanes

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