WO2007020296A1 - Degazeur a cavitation - Google Patents

Degazeur a cavitation Download PDF

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Publication number
WO2007020296A1
WO2007020296A1 PCT/EP2006/065461 EP2006065461W WO2007020296A1 WO 2007020296 A1 WO2007020296 A1 WO 2007020296A1 EP 2006065461 W EP2006065461 W EP 2006065461W WO 2007020296 A1 WO2007020296 A1 WO 2007020296A1
Authority
WO
WIPO (PCT)
Prior art keywords
preceding device
flow
degasifier
obstacle
gas solution
Prior art date
Application number
PCT/EP2006/065461
Other languages
German (de)
English (en)
Inventor
Elmar Huymann
Original Assignee
Wagner, Manfred
Locher, Manfred Lorenz
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 Wagner, Manfred, Locher, Manfred Lorenz filed Critical Wagner, Manfred
Priority to EP06792903A priority Critical patent/EP1926539A1/fr
Publication of WO2007020296A1 publication Critical patent/WO2007020296A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0073—Degasification of liquids by a method not covered by groups B01D19/0005 - B01D19/0042
    • B01D19/0094—Degasification of liquids by a method not covered by groups B01D19/0005 - B01D19/0042 by using a vortex, cavitation

Definitions

  • the invention relates to a hydrodynamic cavitation degasser, in particular deaerator.
  • Cavitation mixers are known. In this case, a suspension or emulsion with little effort and z. B. produced without mechanically driven parts in the device by first steam-filled gas bubbles are generated in the liquid flowing thereon, which then break down implosionsartig again.
  • the so-called cavitation bubbles occurs near the interface between two phase regions, say large oil droplets in water, the second component, in this case the oil droplets, is torn into smaller units and thereby a very fine mixing of the two components and thus produces a very stable suspension or emulsion.
  • the alternating enlargement and reduction of the flow cross-section will be effected by the arrangement of obstacle bodies, e.g. B. transverse discs, in a flow chamber behind the other, wherein the remaining gap z. B. between obstacle body and surrounding housing forms the bottleneck.
  • obstacle bodies e.g. B. transverse discs
  • the smallest possible gas bubbles from an additional exhaust gas additionally serve, as it were, as condensation cores, ie starting points for the accumulation of further gas bubbles, which arise at the individual passage gaps, but then no longer burst immediately, but have time to join together to form larger units.
  • the supplied expulsion gas in the gas solution is partly in solution, thereby displacing the previously dissolved therein gas from the gas solution even more.
  • the expulsion gas used is preferably the same gas which is to be separated from the gas solution, in which case this effect is neutral, or a gas which mixes well with the gas to be separated from the gas solution in the gaseous state.
  • a flow gap which becomes larger with respect to its area-separated by non-narrowed flow areas of even larger area-measured in the main flow direction, ie the flow direction of the gas solution, can be achieved by increasing the obstacle bodies in their cross-section in the main flow direction and thus also the length of the annular gap the obstacle bodies around, and thus form the obstacle body in the flow direction becoming wider cone.
  • the central axis for fixing the obstacle body in the central position of the flow chamber can be used at the same time hollow as a pipe for supplying a Austreibgases in the flow chamber.
  • the efficiency of the device which is usually used in an existing pipeline, can be increased by - for example, depending on the flow rate in the feeding tube, the viscosity of the individual components and their miscibility - the obstacle bodies are axially adjusted, in their Distance to each other and / or in groups or even total relative to the surrounding housing, whereby in a conical housing and the absolute size of the annular gap surfaces is changed.
  • the obstacle bodies are plate-shaped in order to simplify and reduce manufacturing costs, and in particular to be so thin that they can oscillate at their free edges in the flow direction, which causes the generation and tearing off of steam bubbles facilitated.
  • the flow gap between obstacle bodies and housing can at z. B. round obstacle bodies, ie discs, the radial gap between the free outer peripheral edge of the discs and the surrounding housing.
  • B. round obstacle bodies ie discs
  • the plate-shaped obstacle body at its radially outermost point quite reach the housing and are connected to this, but not for example over the entire circumference, but only in segments, and in the segments between radially extending slots or gaps are present, which can be offset from each other in the axial direction from one obstacle body to the next and serve as flow-through gaps.
  • the surrounding housing - viewed in the axial direction - may be formed analogously, so that over the entire circumference a respective constant cross section between the housing and spoiler edge is met or the housing is formed inside continuously round, so that change in the circumferential direction, the distances to the trailing edge.
  • the obstacle bodies are positioned and dimensioned relative to each other and / or to the surrounding housing such that the flow velocity in the Flow gap at the first obstacle body in the flow direction compared to the passage gap at the last obstacle body by a factor of 1, 8 - 2.5, in particular by 2.0 - 2.3, higher.
  • the thickness is between 1 and 4 mm, in particular between 2 and 3 mm, in the case of metal disks, in particular made of stainless steel, the production is very simple, in particular a cutting edge standing at right angles to the main plane of the plates can be used. and the plates are still sufficiently elastic.
  • the axial distance from center to center of two adjacent obstacle body should be between two and seven times the thickness of the plates, in particular three times to five times.
  • the radial width of the annular gap between the outer circumference of the plate-shaped obstacle body and the housing should be between 1 and 5 mm, in particular between 1, 5 and 3.8 mm.
  • the demolition edges are particularly effective when viewed in cross-section have an acute angle of less than 60 °, in particular less than 50 ° or even 45 °, and thus are particularly sharp.
  • the device should be dimensioned and designed so that over the total length of the device, a pressure drop of 2.5 - 3 bar sets.
  • a plurality of obstacle bodies can be combined to form a group and can only be displaced together along the central axis in the longitudinal direction, in particular in the area of the last obstacle bodies, which reduces the structural complexity but only subordinately degrades the efficiency.
  • Fig. 1 shows a vertical degasser according to the invention 1 in longitudinal section, ie in vertical section.
  • a region 17 of constant diameter follows, in the course of which a sight glass 33 is arranged in order to observe the degree of segregation that has taken place up to this point.
  • This route 17 merges into a calming chamber 30, which is greatly expanded in cross-section, or protrudes into this settling chamber 30 in the form of a pipe socket.
  • the pipe socket is covered by a diffuser 32 in the form of a basket strainer to promote further agglomeration of the already formed gas bubbles on the struts of the screen.
  • the second output port 4 b for removing the heavy, so usually the liquid component 22 is arranged below the level of the inlet opening 9 in the settling chamber 30, namely in the frusto-conical wall portion 25 of the widening Querschnit- tes.
  • a sieve preferably extends over the entire cross section of the settling chamber 30, either in addition to or instead of the basket sieve of the inlet opening 9.
  • a vertically rising annular wall 26 can surround the inlet 9 in order to prevent a direct unhindered overflow from the inlet opening 9 into this outlet opening 4b.
  • a Abweiserkonus 31 is further arranged, against which the already partially divided gas solution should bounce and promote the separation.
  • the cross section of the settling chamber 30 tapers again to the cross section corresponding to the distance 17 with constant diameter, and also runs over a certain distance with a constant diameter, so that a second sight glass 33 can be arranged therein.
  • This outlet opening 4a is closed by a valve 35 ' , which operates, for example, by means of a float 36, which floats on the liquid, heavy component 22 and closes the outlet opening 4a when the level of the boundary of the components 21 and 2 rises high enough.
  • FIG. 3 shows a special design of the obstacle bodies 7 in the form of preferably individual disks, however, which are thin at least on the outer circumference T.
  • the discs T are held in the center and optionally the discs in the height of the free peripheral edges thinner than the rest formed.
  • the flow gap 6 is an annular circumferential gap between the inner obstacle body 7 and the housing 2 surrounding the obstacle body 7 radially on the outside.
  • an extension can be achieved by wavy or jagged execution of the trailing edge 8. If the flow gap 6 remain the same width over the circumference should, the inner contour of the housing 2 is designed analogously.
  • the obstacle body 7 are firmly connected to each other and only axially together with respect to the central axis axially adjustable.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Degasification And Air Bubble Elimination (AREA)

Abstract

L'invention concerne un dégazeur à cavitation (1) hydrodynamique, notamment un aérateur qui, à l'aide des composants connus des mélangeurs à cavitation, permet d'obtenir un dégaseur et un procédé de dégazage. Le dégazeur selon l'invention est un procédé de dégazage d'une solution gazeuse liquide pendant l'afflux, la solution gazeuse s'écoulant successivement par des points d'étranglement réalisées sous la forme de fentes de passage (6) dont les surfaces, mesurées transversalement à la direction d'écoulement principale, augmentent dans la direction d'écoulement principal. Après la dernière fente, la ou les solutions gazeuses partiellement séparées affluent de bas en haut dans une chambre de repos (30) et des fractions de poids différents, notamment les deux composantes gazeuses (21) et les composantes liquides (22), se réunissent par gravité dans la zone inférieure et la zone supérieure de la chambre la chambre de repos (30) là où, elles sont respectivement évacuées par des orifices de sortie (4a, 4b) séparés, et la solution gazeuse a dans la première fente de passage (6), notamment dans chaque fente de passage, une vitesse d'écoulement aussi élevée que la pression statique régnant dans la solution gazeuse chute en passant en-deçà de la pression de vapeur de la solution gazeuse.
PCT/EP2006/065461 2005-08-19 2006-08-18 Degazeur a cavitation WO2007020296A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06792903A EP1926539A1 (fr) 2005-08-19 2006-08-18 Degazeur a cavitation

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102005039354 2005-08-19
DE102005039354.3 2005-08-19
DE102005049591.5 2005-10-17
DE102005049591A DE102005049591B3 (de) 2005-08-19 2005-10-17 Kavitations-Entgaser

Publications (1)

Publication Number Publication Date
WO2007020296A1 true WO2007020296A1 (fr) 2007-02-22

Family

ID=37114371

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/065461 WO2007020296A1 (fr) 2005-08-19 2006-08-18 Degazeur a cavitation

Country Status (3)

Country Link
EP (1) EP1926539A1 (fr)
DE (1) DE102005049591B3 (fr)
WO (1) WO2007020296A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1749564A3 (fr) * 2005-08-05 2007-09-12 Elmar Huymann Mélangeur par cavitation
WO2016153782A1 (fr) * 2015-03-24 2016-09-29 Arisdyne Systems, Inc. Dispositif et procédé de dégazage de liquides

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014222510A1 (de) 2014-11-04 2016-05-04 Robert Bosch Gmbh Vorrichtung zum Entgasen einer Hydraulikflüssigkeit

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1381821A (fr) * 1964-02-04 1964-12-14 Ultrasonics Ltd Procédé et dispositif atomiseur pour la production d'aérosols ou autres mélangesintimes de liquides et de gaz
US4300919A (en) 1978-12-06 1981-11-17 Lucas Industries Limited Apparatus and method for desorption of gas from a liquid
US5492654A (en) 1991-11-29 1996-02-20 Oleg V. Kozjuk Method of obtaining free disperse system and device for effecting same
DE4433744A1 (de) * 1994-09-21 1996-03-28 Weizdoerfer Anton & Co Gmbh Vorrichtung zur Erzeugung flüssiger Systeme, insbesondere von Emulsionen, Suspensionen od. dgl. in einem hydrodynamischen Kavitationsfeld
RU2069072C1 (ru) 1993-03-29 1996-11-20 Александр Илларионович Плугин Способ обработки жидкостей и устройство для его осуществления
WO2001062373A1 (fr) * 2000-02-28 2001-08-30 Locher, Manfred, Lorenz Melangeur par cavitation
WO2002040142A2 (fr) * 2000-11-20 2002-05-23 Five Star Technologies, Inc. Appareil et procede de creation de cavitation hydrodynamique dans des fluides
US20030111429A1 (en) 2001-12-14 2003-06-19 Montalvao Antonio Filipe Falcao Cavitation method and apparatus for deaeration
US20030147797A1 (en) 2001-02-26 2003-08-07 Basok Boris Iv. Pulse energy transformation
DE10310442A1 (de) 2003-03-11 2004-09-23 Rolf Schüler Kavitations-Molekularreaktor
WO2006027002A1 (fr) * 2004-09-03 2006-03-16 Crenano Gmbh Reacteur a supercavitation comprenant plusieurs chambres

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5515661A (en) * 1978-07-21 1980-02-02 Fuji Photo Film Co Ltd Continuous deaeration method of water
DE19626516A1 (de) * 1996-07-02 1998-01-08 Jeannette Bastian On-line Entgasung von Isolier- und Wärmeträgerflüssigkeiten
DE10031241A1 (de) * 2000-06-27 2002-01-24 Daimler Chrysler Ag Kreislaufsystem zum Abscheiden von gelöstem und/oder mittrangsportiertem Kohlendioxid
SE524916C2 (sv) * 2003-02-27 2004-10-19 Scania Cv Abp Anordning för att separera gas från ett vätskeformigt medium

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1381821A (fr) * 1964-02-04 1964-12-14 Ultrasonics Ltd Procédé et dispositif atomiseur pour la production d'aérosols ou autres mélangesintimes de liquides et de gaz
US4300919A (en) 1978-12-06 1981-11-17 Lucas Industries Limited Apparatus and method for desorption of gas from a liquid
US5492654A (en) 1991-11-29 1996-02-20 Oleg V. Kozjuk Method of obtaining free disperse system and device for effecting same
RU2069072C1 (ru) 1993-03-29 1996-11-20 Александр Илларионович Плугин Способ обработки жидкостей и устройство для его осуществления
DE4433744A1 (de) * 1994-09-21 1996-03-28 Weizdoerfer Anton & Co Gmbh Vorrichtung zur Erzeugung flüssiger Systeme, insbesondere von Emulsionen, Suspensionen od. dgl. in einem hydrodynamischen Kavitationsfeld
WO2001062373A1 (fr) * 2000-02-28 2001-08-30 Locher, Manfred, Lorenz Melangeur par cavitation
WO2002040142A2 (fr) * 2000-11-20 2002-05-23 Five Star Technologies, Inc. Appareil et procede de creation de cavitation hydrodynamique dans des fluides
US20030147797A1 (en) 2001-02-26 2003-08-07 Basok Boris Iv. Pulse energy transformation
US20030111429A1 (en) 2001-12-14 2003-06-19 Montalvao Antonio Filipe Falcao Cavitation method and apparatus for deaeration
DE10310442A1 (de) 2003-03-11 2004-09-23 Rolf Schüler Kavitations-Molekularreaktor
WO2006027002A1 (fr) * 2004-09-03 2006-03-16 Crenano Gmbh Reacteur a supercavitation comprenant plusieurs chambres

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199728, Derwent World Patents Index; AN 1997-308859, XP002404961 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1749564A3 (fr) * 2005-08-05 2007-09-12 Elmar Huymann Mélangeur par cavitation
WO2016153782A1 (fr) * 2015-03-24 2016-09-29 Arisdyne Systems, Inc. Dispositif et procédé de dégazage de liquides
US10159915B2 (en) 2015-03-24 2018-12-25 Arisdyne Systems, Inc. Device and method for degassing liquids

Also Published As

Publication number Publication date
DE102005049591B3 (de) 2007-03-29
EP1926539A1 (fr) 2008-06-04

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