EP3426928B1 - Compresseur centrifuge sans système de drainage externe, motocompresseur et procédé permettant d'éviter un drainage externe dans un compresseur - Google Patents

Compresseur centrifuge sans système de drainage externe, motocompresseur et procédé permettant d'éviter un drainage externe dans un compresseur Download PDF

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Publication number
EP3426928B1
EP3426928B1 EP17709413.3A EP17709413A EP3426928B1 EP 3426928 B1 EP3426928 B1 EP 3426928B1 EP 17709413 A EP17709413 A EP 17709413A EP 3426928 B1 EP3426928 B1 EP 3426928B1
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EP
European Patent Office
Prior art keywords
compressor
centrifugal compressor
liquid
intake plenum
centrifugal
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.)
Active
Application number
EP17709413.3A
Other languages
German (de)
English (en)
Other versions
EP3426928A1 (fr
Inventor
Manuele Bigi
Giuseppe Sassanelli
Duccio Fioravanti
Massimiliano ORTIZ NERI
Matteo DOZZINI
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.)
Nuovo Pignone Technologie SRL
Original Assignee
Nuovo Pignone Technologie SRL
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Filing date
Publication date
Application filed by Nuovo Pignone Technologie SRL filed Critical Nuovo Pignone Technologie SRL
Priority claimed from PCT/EP2017/055135 external-priority patent/WO2017153311A1/fr
Publication of EP3426928A1 publication Critical patent/EP3426928A1/fr
Application granted granted Critical
Publication of EP3426928B1 publication Critical patent/EP3426928B1/fr
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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
    • F04D31/00—Pumping liquids and elastic fluids at the same time
    • 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
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/706—Humidity separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F05D2260/602—Drainage

Definitions

  • Such compressors when the working fluid is wet, some liquid accumulates inside the casing of the compressor during operation. The accumulated liquid must be drained outside the casing. Therefore, such compressors must have an external drainage system, i.e. a system for external drainage.
  • the compressor 200 has an annular cavity 256 designed for electrical distribution of power and control of the bearing device 250.

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

Claims (10)

  1. Compresseur centrifuge (200) ayant un axe vertical (201), une entrée inférieure (210) avec un plénum d'admission (211) et une sortie supérieure (220) avec une volute de décharge (221), dans lequel le compresseur centrifuge (200) comprend une pluralité de tuyaux de drainage (231) s'alimentant depuis l'intérieur du compresseur centrifuge (200) et se terminant au niveau du plénum d'admission (211), caractérisé en ce que le compresseur est configuré pour éliminer le liquide drainé accumulé dans le plénum d'admission (211) par l'écoulement de fluide de travail dans et hors du plénum d'admission (211)
  2. Compresseur centrifuge (200) selon la revendication 1, dans lequel le plénum d'admission (211) comprend une partie convergente supérieure (211A), et dans lequel les tuyaux de drainage (231) se terminent au niveau de la partie convergente supérieure (211A).
  3. Compresseur centrifuge (200) selon la revendication 1 ou 2, dans lequel au moins les parties d'extrémité des tuyaux de drainage (231) sont inclinées par rapport à l'axe vertical (201) et/ou obliquent par rapport à l'axe vertical (201).
  4. Compresseur centrifuge (200) selon la revendication 1 ou 2 ou 3, dans lequel le compresseur centrifuge (200) comprend une pluralité d'impulseurs (240), dans lequel au moins le premier impulseur (241) est résistant aux gouttelettes liquides.
  5. Compresseur centrifuge (200) selon l'une quelconque des revendications 1 à 4, dans lequel un dispositif de palier (250) est situé dans le plénum d'admission (211), en particulier dans une partie convergente supérieure (211A) du plénum d'admission (211), pour guider et/ou supporter un arbre (202) du compresseur centrifuge (200).
  6. Compresseur centrifuge (200) selon la revendication 5, dans lequel le compresseur centrifuge (200) a un carter (203), dans lequel le dispositif de palier (250) a un boîtier (251), et dans lequel le boîtier (251) est relié au carter (203) à travers une pluralité d'entretoises (252).
  7. Compresseur centrifuge (200) selon la revendication 6, dans lequel des fils électriques (253) et/ou tuyaux (254) sont associés aux entretoises (252).
  8. Compresseur centrifuge (200) selon l'une quelconque des revendications 1 à 7, dans lequel une coque cylindrique est située en dessous du dispositif de palier (250) et recouvre des fils électriques.
  9. Motocompresseur (1) comprenant un moteur (100) et un compresseur centrifuge (200) entraîné par le moteur (100), dans lequel le compresseur centrifuge (200) est selon l'une quelconque des revendications 1 à 8.
  10. Procédé pour éviter l'accumulation et le drainage externe de liquide dans le fluide de travail d'un compresseur (200) ayant un axe vertical (201), dans lequel du liquide drainé à l'intérieur du compresseur (200) est alimenté à un plénum d'admission (211) du compresseur (200), caractérisé en ce que le liquide drainé est alimenté à une région (211A) du plénum d'admission (211) où la grandeur et/ou la direction de la vitesse du fluide de travail est/sont telle/telles de manière à emporter le liquide drainé alimenté.
EP17709413.3A 2016-03-08 2017-03-06 Compresseur centrifuge sans système de drainage externe, motocompresseur et procédé permettant d'éviter un drainage externe dans un compresseur Active EP3426928B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUB20161464 2016-03-08
PCT/EP2017/055135 WO2017153311A1 (fr) 2016-03-08 2017-03-06 Compresseur centrifuge sans système de drainage externe, motocompresseur et procédé permettant d'éviter un drainage externe dans un compresseur

Publications (2)

Publication Number Publication Date
EP3426928A1 EP3426928A1 (fr) 2019-01-16
EP3426928B1 true EP3426928B1 (fr) 2022-06-08

Family

ID=64604408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17709413.3A Active EP3426928B1 (fr) 2016-03-08 2017-03-06 Compresseur centrifuge sans système de drainage externe, motocompresseur et procédé permettant d'éviter un drainage externe dans un compresseur

Country Status (2)

Country Link
EP (1) EP3426928B1 (fr)
DK (1) DK3426928T3 (fr)

Also Published As

Publication number Publication date
DK3426928T3 (da) 2022-07-11
EP3426928A1 (fr) 2019-01-16

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