EP2804698B1 - Cyclone pour la séparation d'une phase liquide et d'un flux de gas saturé - Google Patents

Cyclone pour la séparation d'une phase liquide et d'un flux de gas saturé Download PDF

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Publication number
EP2804698B1
EP2804698B1 EP12810153.2A EP12810153A EP2804698B1 EP 2804698 B1 EP2804698 B1 EP 2804698B1 EP 12810153 A EP12810153 A EP 12810153A EP 2804698 B1 EP2804698 B1 EP 2804698B1
Authority
EP
European Patent Office
Prior art keywords
liquid
insert
cyclone
cyclone according
separated
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
EP12810153.2A
Other languages
German (de)
English (en)
Other versions
EP2804698A1 (fr
Inventor
Klaus Hoyer
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.)
Scherrer Paul Institut
Original Assignee
Scherrer Paul Institut
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 Scherrer Paul Institut filed Critical Scherrer Paul Institut
Priority to EP12810153.2A priority Critical patent/EP2804698B1/fr
Publication of EP2804698A1 publication Critical patent/EP2804698A1/fr
Application granted granted Critical
Publication of EP2804698B1 publication Critical patent/EP2804698B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions

Definitions

  • the present invention relates to a cyclone for separating the liquid phase from a supersaturated gas stream such as from the GB 1 252 228 A known.
  • the present invention is therefore based on the object of specifying a device which makes it possible to securely separate out the liquid portion in a saturated gas mixture.
  • the main advantage of the described invention lies in the possible increase in the permissible gas velocity without running the risk of mixing liquid from the wall back into the gas flow. This new degree of freedom not only allows the size of the system to be further minimized, but also promises wide scalability. Since a supersaturated or "wet" inflow is assumed, permissible values for temperature and pressure of the inflow are only subject to the design, ie the method or the cyclone are relevant to both atmospheric and increased pressure. Temperature applicable.
  • One possible method for providing the supersaturated inflow is to inject the liquid to be evaporated directly into the overflow.
  • the a-priori knowledge of the evaporable mass flow as a function of pressure, temperature and throughput allows precise control of the supersaturation.
  • a preferred exemplary embodiment for a cyclone which separates a liquid-free, saturated gas phase 2 from a supersaturated liquid-gas mixture 1 by re-entrainment of the centrifuged liquid film flow 5a along the cyclone wall by means of an insert 4 made of porous material is prevented.
  • This material is selected according to the liquid, so that an always negative capillary pressure in the partially saturated area 4a, near a riser pipe inlet 2a, prevents re-entrainment of the liquid phase due to the high shear forces of the gas flow. Over time, an area 4b saturated with liquid will form within the porous insert.
  • the interface between the two areas 4a and 4b is established according to the laws of flow for porous media as a function of gravity, geometry, porosity and volume flow.
  • the liquid 5b flows out of the saturated area 4b, 4c and collects in a volume below the insert 4.
  • the porous pin 4c communicates with the collected liquid and allows the interfacial tension to be overcome.
  • a measurement of the accumulated amount of liquid 5b allows a process-controlled opening of a drain cock 6 and thus draining of the liquid 3. This ensures that there is always a partially saturated area 4a of the porous insert 4 and thus the re-mixing of liquid is prevented.
  • the invention is characterized in that, for the first time, a porous and liquid-loving, pre-formed, 3-dimensional volume insert can be used as the liquid absorber in order to remove the already separated and excess liquid from the process.
  • a porous and liquid-loving, pre-formed, 3-dimensional volume insert can be used as the liquid absorber in order to remove the already separated and excess liquid from the process.
  • 2-dimensional membranes for example, which, in addition to low mechanical load-bearing capacity, also have little storage capacity and have a flow cross-section and therefore run the risk of building up a liquid film on the surface, which in turn can be detached by the turbulent shear forces of the gas flow.

Landscapes

  • Cyclones (AREA)

Claims (9)

  1. Cyclone pour la séparation de la phase liquide d'un flux de gaz sursaturé avec une entrée (1) et un tube montant avec une entrée de tube montant (2a) et un insert (4) prévu sous la forme d'un drain de liquide,
    caractérisé
    en ce que l'insert (4) est prévu sous la forme d'un drain de liquide sous la forme d'une zone tridimensionnelle poreuse et est réalisé sous forme préformée, dans lequel :
    a) l'insert (4) comporte un matériau avec des propriétés mouillantes à l'égard du liquide à séparer, et
    b) la porosité et/ou la stratification et/ou le formage sont adaptés à la dynamique du flux de gaz sursaturé et la quantité de liquide à séparer d'une manière telle qu'une pression capillaire constamment négative s'ajuste par rapport au liquide à séparer dans une zone partiellement saturée (4a) à proximité de l'entrée de tube montant (2a) afin d'assurer un volume des pores non saturés dans la zone de l'entrée de tube montant (2a) ; et
    c) un écoulement constant du liquide cumulé est prévu dans le volume des pores saturés.
  2. Cyclone selon la revendication 1,
    caractérisé
    en ce que l'insert, en fonctionnement stationnaire, est immergé en partie dans le liquide à séparer.
  3. Cyclone selon la revendication 1 ou la revendication 2,
    caractérisé
    en ce que l'insert est conçu de telle sorte qu'une stabilité mécanique soit garantie en dépression relative ou en surpression relative.
  4. Cyclone selon l'une des revendications précédentes,
    caractérisé
    en ce que l'insert est conçu de telle sorte qu'une stabilité thermique soit garantie dans un état sous-refroidi ou surchauffé par rapport à la température ambiante.
  5. Cyclone selon l'une des revendications précédentes,
    caractérisé
    en ce qu'un changement de l'insert préformé est permis par ouverture d'une communication.
  6. Cyclone selon l'une des revendications précédentes,
    caractérisé
    en ce qu'un capteur de niveau de remplissage est prévu dans la zone au-dessous de l'insert.
  7. Cyclone selon la revendication 6,
    caractérisé
    en ce qu'en liaison avec le signal du capteur de niveau de remplissage, un actionneur ouvre ou ferme un robinet de purge.
  8. Cyclone selon l'une des revendications précédentes,
    caractérisé en ce qu'une isolation thermique est prévue autour du cyclone et/ou des conduites pour la garantie d'un degré d'élimination souhaité.
  9. Cyclone selon l'une des revendications précédentes,
    caractérisé en ce qu'un chauffage et/ou refroidissement du cyclone et/ou des conduites est prévu pour la garantie d'un degré d'élimination souhaité.
EP12810153.2A 2012-01-19 2012-12-11 Cyclone pour la séparation d'une phase liquide et d'un flux de gas saturé Active EP2804698B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12810153.2A EP2804698B1 (fr) 2012-01-19 2012-12-11 Cyclone pour la séparation d'une phase liquide et d'un flux de gas saturé

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12151813 2012-01-19
PCT/EP2012/075099 WO2013107568A1 (fr) 2012-01-19 2012-12-11 Cyclone pour la séparation de la phase liquide d'un courant gazeux sursaturé
EP12810153.2A EP2804698B1 (fr) 2012-01-19 2012-12-11 Cyclone pour la séparation d'une phase liquide et d'un flux de gas saturé

Publications (2)

Publication Number Publication Date
EP2804698A1 EP2804698A1 (fr) 2014-11-26
EP2804698B1 true EP2804698B1 (fr) 2020-09-02

Family

ID=47504865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12810153.2A Active EP2804698B1 (fr) 2012-01-19 2012-12-11 Cyclone pour la séparation d'une phase liquide et d'un flux de gas saturé

Country Status (2)

Country Link
EP (1) EP2804698B1 (fr)
WO (1) WO2013107568A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022051960A1 (fr) * 2020-09-10 2022-03-17 Robert Bosch Gmbh Séparateur gaz-liquide et système de pile à combustible le comprenant

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1292479B (de) * 1958-08-22 1969-04-10 Weber Herbert Fliehkraftstaubabscheider der Zyklonbauweise mit Einbaukoerper
GB1252228A (fr) * 1970-07-14 1971-11-03
JPS5684656A (en) * 1979-12-12 1981-07-10 Nippon Mining Co Ltd Centrifugal separator
DE20013046U1 (de) * 2000-07-28 2001-01-11 Müns Technische Anlagen GmbH, 16321 Lindenberg Dynamische Drallscheibe für Zyklonabscheider zur Erzeugung einer Wirbelsenkströmung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2804698A1 (fr) 2014-11-26
WO2013107568A1 (fr) 2013-07-25

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