EP3376041A1 - Étage de recirculation et turbomachine à énergie fluidique radiale - Google Patents

Étage de recirculation et turbomachine à énergie fluidique radiale Download PDF

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Publication number
EP3376041A1
EP3376041A1 EP17161002.5A EP17161002A EP3376041A1 EP 3376041 A1 EP3376041 A1 EP 3376041A1 EP 17161002 A EP17161002 A EP 17161002A EP 3376041 A1 EP3376041 A1 EP 3376041A1
Authority
EP
European Patent Office
Prior art keywords
vanes
guide vanes
section
bfs
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.)
Withdrawn
Application number
EP17161002.5A
Other languages
German (de)
English (en)
Inventor
Nico Petry
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP17161002.5A priority Critical patent/EP3376041A1/fr
Priority to EP18707245.9A priority patent/EP3568597B1/fr
Priority to PCT/EP2018/052852 priority patent/WO2018166716A1/fr
Priority to CN201880018548.5A priority patent/CN110418896B/zh
Priority to US16/488,876 priority patent/US10989202B2/en
Publication of EP3376041A1 publication Critical patent/EP3376041A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for 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
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • 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

Definitions

  • the arrangement of the first vanes and the second vanes exclusively in the third section of the recirculation stage combines aerodynamically advantageous preparation of the process fluid to the downstream impeller after the 90 ° turn. It can be seen that the flow guidance in the third section, which is divided into two guide stages, works particularly efficiently in the swirl-free alignment of the process fluid.
  • the arrangement of the Leitbeschaufelung exclusively in the third section is particularly easy to manufacture and easy to install.
  • the arrangement in the third section advantageously allows for a solid attachment of the false bottom to the blade bottom and is also particularly well suited due to the relatively simple geometry of the radial feedback in the region of the third section for mounting and manufacturing the two rows of vane.
  • first guide vanes have a metal outlet angle to the radial direction with: - 5 ° ⁇ L 1 EA ⁇ 5 ° .
  • L1EA Metal exit angle of the first vanes (L1) to the radial direction.
  • the return stage has the same number of first vanes and second vanes.
  • first guide vanes and / or second guide vanes are cylindrical.
  • Another advantageous development of the invention provides that exactly one second guide vane is arranged downstream in the circumferential direction between the two closest first guide vanes.
  • a circumferentially offset second vane stage or the arrangement of the second vanes in the circumferential direction asymmetrically to the outlet edges of the first vanes leads to a reduction of the aerodynamic losses of the process fluid in the flow through the return stage.
  • FIG. 1 shows a schematic representation of a longitudinal section of a radial turbofluid energy machine RTFEM in the section of a flow channel for a process fluid PF.
  • the section shows five impellers IMP, which rotate as part of a rotor R in operation about an axis X.
  • the impellers IMP suck in each case the process fluid PF substantially axially and convey this accelerated radially outward. After exiting the impeller IMP, the process fluid PF enters a return stage BFS comprising a return channel BFC.
  • first vanes L1 and second vanes L2 Only in the third section S3 are first vanes L1 and second vanes L2 arranged.
  • the first vanes have an entrance edge L1LE and a exit edge L1TE.
  • the second vanes L2 have an entrance edge L2LE and an exit edge L2TE.
  • the leading edge L2LE of the second vane L2 is located in a radial portion RAD downstream and at a smaller radius than the trailing edges L1TE of the first vanes L1 - this arrangement is preferred according to the invention.
  • the scope of the invention also includes embodiments in which this radial section RAD is zero or the entry edges L2LE are located in the radial region of the first guide vanes L1.
  • the ratio of the suction-side portion SSD to the entire Arc length BLD of the connecting line CLTE between the two exit edges L1TE of the first vanes L1 is between 0.4 - 0.6 (0.4 ⁇ SSD / BLD ⁇ 0.6).
  • This type of unequal distribution of the flow channel FC between the two first guide vanes L1 by means of the following guide vane L2 leads to a particularly advantageous low-loss flow through the third section S3.
EP17161002.5A 2017-03-15 2017-03-15 Étage de recirculation et turbomachine à énergie fluidique radiale Withdrawn EP3376041A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP17161002.5A EP3376041A1 (fr) 2017-03-15 2017-03-15 Étage de recirculation et turbomachine à énergie fluidique radiale
EP18707245.9A EP3568597B1 (fr) 2017-03-15 2018-02-06 Étage de recirculation et turbomachine à énergie fluidique radiale
PCT/EP2018/052852 WO2018166716A1 (fr) 2017-03-15 2018-02-06 Étage de retour et turbomachine à énergie fluidique radiale
CN201880018548.5A CN110418896B (zh) 2017-03-15 2018-02-06 回引级和径流式涡轮流体能量机械
US16/488,876 US10989202B2 (en) 2017-03-15 2018-02-06 Backfeed stage and radial turbo fluid energy machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17161002.5A EP3376041A1 (fr) 2017-03-15 2017-03-15 Étage de recirculation et turbomachine à énergie fluidique radiale

Publications (1)

Publication Number Publication Date
EP3376041A1 true EP3376041A1 (fr) 2018-09-19

Family

ID=58347182

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17161002.5A Withdrawn EP3376041A1 (fr) 2017-03-15 2017-03-15 Étage de recirculation et turbomachine à énergie fluidique radiale
EP18707245.9A Active EP3568597B1 (fr) 2017-03-15 2018-02-06 Étage de recirculation et turbomachine à énergie fluidique radiale

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP18707245.9A Active EP3568597B1 (fr) 2017-03-15 2018-02-06 Étage de recirculation et turbomachine à énergie fluidique radiale

Country Status (4)

Country Link
US (1) US10989202B2 (fr)
EP (2) EP3376041A1 (fr)
CN (1) CN110418896B (fr)
WO (1) WO2018166716A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018173020A (ja) * 2017-03-31 2018-11-08 三菱重工業株式会社 遠心圧縮機
EP3798453A1 (fr) 2019-09-26 2021-03-31 Siemens Aktiengesellschaft Guidage de flux d'une turbomachine radiale, étage de retour, turbomachine radiale, procédé de fabrication
EP4219954A1 (fr) * 2020-09-23 2023-08-02 Hitachi Industrial Products, Ltd. Compresseur centrifuge

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE723824C (de) 1935-05-27 1942-08-11 Escher Wyss Maschf Ag Mehrstufiger Fliehkraftverdichter bzw. mehrstufige Fliehkraftpumpe
US2300766A (en) * 1940-05-10 1942-11-03 Bbc Brown Boveri & Cie Multistage centrifugal compressor
JPH11173299A (ja) 1997-12-05 1999-06-29 Mitsubishi Heavy Ind Ltd 遠心圧縮機
JP2001200797A (ja) * 2000-01-17 2001-07-27 Hitachi Ltd 多段遠心圧縮機
JP2009264305A (ja) * 2008-04-28 2009-11-12 Hitachi Appliances Inc 遠心圧縮機及びそれを用いたターボ冷凍機
WO2015072231A1 (fr) * 2013-11-12 2015-05-21 株式会社日立製作所 Turbomachine centrifuge

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0244516A (ja) 1988-08-05 1990-02-14 Mitsubishi Electric Corp 磁気ヘッド
CA2324533A1 (fr) * 2000-10-27 2002-04-27 Carl Hunter Enrichissement en oxygene dans des moteurs diesels
JP2010185361A (ja) * 2009-02-12 2010-08-26 Mitsubishi Heavy Ind Ltd 遠心圧縮機
CN103154466B (zh) * 2010-09-02 2015-06-17 博格华纳公司 转成环形体积的压缩机再循环
CN102678590B (zh) 2011-03-07 2015-08-12 中国科学院工程热物理研究所 超紧凑高压比斜流-离心组合压气机结构
DE102014226195A1 (de) * 2014-12-17 2016-06-23 Siemens Aktiengesellschaft Radialturbofluidenergiemaschine
DE102016203305A1 (de) * 2016-03-01 2017-09-07 Siemens Aktiengesellschaft Rückführstufe, Radialturbofluidenergiemaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE723824C (de) 1935-05-27 1942-08-11 Escher Wyss Maschf Ag Mehrstufiger Fliehkraftverdichter bzw. mehrstufige Fliehkraftpumpe
US2300766A (en) * 1940-05-10 1942-11-03 Bbc Brown Boveri & Cie Multistage centrifugal compressor
JPH11173299A (ja) 1997-12-05 1999-06-29 Mitsubishi Heavy Ind Ltd 遠心圧縮機
JP2001200797A (ja) * 2000-01-17 2001-07-27 Hitachi Ltd 多段遠心圧縮機
JP2009264305A (ja) * 2008-04-28 2009-11-12 Hitachi Appliances Inc 遠心圧縮機及びそれを用いたターボ冷凍機
WO2015072231A1 (fr) * 2013-11-12 2015-05-21 株式会社日立製作所 Turbomachine centrifuge

Also Published As

Publication number Publication date
US10989202B2 (en) 2021-04-27
US20200025205A1 (en) 2020-01-23
CN110418896B (zh) 2020-10-30
EP3568597B1 (fr) 2020-09-16
WO2018166716A1 (fr) 2018-09-20
CN110418896A (zh) 2019-11-05
EP3568597A1 (fr) 2019-11-20

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