EP1020229A1 - Gaine d'entrée de fumées dans un séparateur cyclone - Google Patents
Gaine d'entrée de fumées dans un séparateur cyclone Download PDFInfo
- Publication number
- EP1020229A1 EP1020229A1 EP00400087A EP00400087A EP1020229A1 EP 1020229 A1 EP1020229 A1 EP 1020229A1 EP 00400087 A EP00400087 A EP 00400087A EP 00400087 A EP00400087 A EP 00400087A EP 1020229 A1 EP1020229 A1 EP 1020229A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cyclone
- face
- point
- sheath
- nose
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/027—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators
-
- 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
- B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
- B04C5/04—Tangential inlets
-
- 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
- B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
Definitions
- the present invention relates to a flue inlet duct in a separator cyclone.
- the invention applies in particular, although not limited to, large installations, for example from 250 to 600 MW, which include several cyclone separators placed side by side at the exit of the fireplace.
- large installations for example from 250 to 600 MW, which include several cyclone separators placed side by side at the exit of the fireplace.
- the arrangement of the inlet sheath of a cyclone separator at the outlet of a hearth is that shown in fig. 1 where we see schematically in top view the cyclone separator 1 with its inlet sheath 2 at the outlet from the hearth 3.
- This inlet sheath has two lateral faces 4 and 5, one face of floor and ceiling face not visible in this view.
- Face 4 is called the lower face and face 5 the upper face. For reasons size, it is very common for the lower surface to make an acute angle ⁇ with respect to the exit face of the room.
- Document us 5,771,844 shows a cyclone separator in which the sheath inlet 12 extends inside the hearth and in which the lower face 13 of the duct entry is curved in its first part, internal to the foyer.
- the present invention proposes to improve the efficiency of such cyclone separators by special provisions of the inlet sheath.
- the subject of the invention is therefore a flue inlet duct in a separator cyclone, said sheath comprising two lateral faces, one of which is called the upper surface and the other underside, the latter leading to the nose of cyclone D, a ceiling face and a floor face, said underside face which connects the point S of duct start to point D of the nose of the cyclone having a profile such that it comprises at least two distinct tangents such that one T intersects the upper surface at a point A located upstream of the foot B of the perpendicular to the upper surface conducted from the nose D of the cyclone, characterized in that said lower surface begins from said point S by a first part having a rectilinear profile R, followed by a second part with a curvilinear profile V with inflection point or of a second rectilinear part joining the nose D of the cyclone, said point S being located at the start of the focus.
- the lower surface has inclined grooves down from the fireplace outlet to the cyclone separator. This provision that we can also be applied on the upper surface to promote the transfer of solid particles in the inlet sheath towards the bottom of the cyclone.
- the ceiling face of the inlet duct forms a hump constituting a profile comprising, in the direction of the length of the sheath from the exit from the hearth towards the entry of the cyclone, a first descending part followed by a part rising.
- said bump is such that the narrowing of height in each section of the duct is greater on the lower side than on the upper side.
- FIG. 2 we see a cyclone separator 1 connected to the outlet smoke from a hearth 3 through an inlet duct 2.
- This figure shows the two lateral faces of the sheath 2: the face 4A, called the lower face and the face 5, called the upper face.
- the lower surface 4A begins, at point S of departure from focus 3, by a rectilinear part R followed by a curvilinear part V comprising a point inflection point 6.
- the tangent to the inflection point 6 intersects the upper surface 5 at point A located upstream from point B, foot of the perpendicular ⁇ to the upper surface conducted from the nose D of the cyclone.
- This arrangement makes it possible to have a first zone 7 for handling particles. solids, followed by a solid direction change zone 8.
- Fig. 3 shows a variant of the invention in which the lower face 4B starts from said point S, as in fig. 2, by a first part having a rectilinear profile R followed by a second part 4B1 also rectilinear and joining the nose D cyclone 1.
- the extension of the first part with the straight profile R cuts the upper surface 5 in one point A located upstream of point B, foot of the perpendicular to the upper surface 5 conducted from the nose D of the cyclone.
- Fig. 5 is simply a simplified sketch showing the entry section of the fumes in the duct 2 in the direction of the arrow F in FIG. 4 and making it possible to identify the four faces of the duct 2: lower face 4A, 4B, upper face 5, ceiling face 10 and face 11.
- the inclined grooves 9, shown diagrammatically in FIG. 4, are performed on the face upper surface 5 but can also be on the lower surface 4A, 4B.
- These grooves 9 are inclined at an angle between 5 and 25 ° relative to the horizontal.
- Fig. 6 is a diagram showing the section of the grooves. They have advantageously a height h of between 200 and 400 mm and a lower depth at 50 mm, and they are separated by solid parts 12 with a height h1 between 100 and 300 mm.
- figs. 7 and 8 show an arrangement taken on the ceiling face 10 of so that the solid particles, on the one hand, come off the ceiling 13 of the cyclone and, on the other hand, migrate, from the ceiling, from the lower surface 4A, 4B towards the upper surface 5 like the shows arrow 14 (fig. 8), thus favoring, on the one hand the gravity separation and on the other hand lengthening the centrifugation radius of solid particles.
- This arrangement consists, as can be seen in the two figs. 7 and 8 in a bump ceiling 15.
- This bump 15 constitutes a three-dimensional left profile causing in the direction of the length of the sheath 2, as shown in fig. 7, first, at the outlet of the hearth 3, a contraction of the sheath section then an expansion of the section before entry in cyclone 1.
- the bump 15, asymmetrical reduces the height of passage in the duct from the upper surface 5 towards the lower surface 4A, 4B.
- the hump 15 has a longitudinal slope (fig. 7) less than 20% over a length of 5 m, i.e. 1 m of bump height. In the sense transverse, fig. 8, the transition is gradual between the reduced height ceiling side lower surface 4 and upper surface side 5 at non-reducing height.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Cyclones (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
Description
Claims (5)
- Gaine d'entrée (2) de fumées dans un séparateur cyclone (1), ladite gaine comportant deux faces latérales (4A, 4B, 5) dont l'une est appelée face extrados (5) et l'autre face intrados (4A, 4B), cette dernière aboutissant au nez du cyclone D, une face de plafond (10) et une face de plancher (11), ladite face intrados (4A, 4B) qui relie le point S de début de gaine au point D du nez du cyclone ayant un profil tel qu'il comporte au moins deux tangentes distinctes telles que l'une T coupe l'extrados (5) en un point A situé en amont du pied B de la perpendiculaire à l'extrados menées du nez D du cyclone, caractérisée en ce que ladite face intrados (4A, 4B) commence à partir dudit point S par une première partie ayant un profil rectiligne R, suivi d'une seconde partie ayant un profil curviligne V à point d'inflexion (6) ou bien d'une seconde partie rectiligne (4B1) rejoignant le nez D du cyclone, ledit point S étant situé au départ du foyer.
- Gaine selon la revendication 1, caractérisée en ce que la face intrados (4A, 4B) comporte des rainures (9) inclinées vers le bas depuis la sortie du foyer vers le séparateur cyclone (1).
- Gaine selon l'une des revendications 1 ou 2, caractérisée en ce que la face extrados (5) comporte des rainures (9) inclinées vers le bas depuis la sortie du foyer vers le séparateur cyclone (1).
- Gaine selon l'une des revendications précédentes, caractérisée par le fait que ladite face de plafond forme une bosse constituant un profil comportant, dans le sens de la longueur de la gaine (fig. 7) depuis la sortie du foyer vers l'entrée du cyclone, une première partie descendante suivie d'une partie montante.
- Gaine selon la revendication 4, caractérisée en ce que ladite bosse est telle que le rétrécissement de hauteur dans chaque section de la gaine est plus important côté intrados (4A, 4B) que côté extrados (5).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9900464A FR2788453B1 (fr) | 1999-01-18 | 1999-01-18 | Gaine d'entree de fumees dans un separateur cyclone |
FR9900464 | 1999-01-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1020229A1 true EP1020229A1 (fr) | 2000-07-19 |
EP1020229B1 EP1020229B1 (fr) | 2008-10-01 |
Family
ID=9540955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00400087A Expired - Lifetime EP1020229B1 (fr) | 1999-01-18 | 2000-01-13 | Gaine d'entrée de fumées dans un séparateur cyclone |
Country Status (7)
Country | Link |
---|---|
US (1) | US6322601B1 (fr) |
EP (1) | EP1020229B1 (fr) |
CN (1) | CN1140315C (fr) |
AT (1) | ATE409524T1 (fr) |
DE (1) | DE60040355D1 (fr) |
ES (1) | ES2313874T3 (fr) |
FR (1) | FR2788453B1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002067756A1 (fr) * | 2001-02-24 | 2002-09-06 | Dyson Ltd | Appareil de separation cyclonique |
EP2431096A1 (fr) | 2010-09-17 | 2012-03-21 | Alstom Technology Ltd | Séparateur à cyclone |
EP2213377A4 (fr) * | 2007-11-30 | 2015-11-18 | Mitsubishi Heavy Ind Ltd | Dispositif de séparation de poudre et brûleur de combustible solide |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100619785B1 (ko) * | 2005-05-16 | 2006-09-06 | 엘지전자 주식회사 | 오일분리기 |
DE102009050165A1 (de) | 2009-10-21 | 2011-04-28 | Outotec Oyj | Vorrichtung zur Behandlung von Feststoffen und/oder Gasen |
GB2499620B (en) * | 2012-02-21 | 2019-05-22 | Caltec Production Solutions Ltd | Fluid separator |
CN103398375B (zh) * | 2013-07-01 | 2016-01-13 | 中国华能集团清洁能源技术研究院有限公司 | 带有耐磨靶区及导向装置的循环流化床锅炉旋风分离器 |
DE102013112977B4 (de) * | 2013-11-25 | 2015-08-06 | Pfannenberg Gmbh | Luftdurchtrittsvorrichtung zur Zuführung gereinigter Luft in einen Innenraum eines Schaltschrankes und Schaltschrank mit einer solchen Luftdurchtrittsvorrichtung |
CN104100968B (zh) * | 2014-07-25 | 2016-03-30 | 中国华能集团清洁能源技术研究院有限公司 | 一种带有整体倾斜中心筒的循环流化床锅炉旋风分离器 |
US10219672B2 (en) | 2015-12-15 | 2019-03-05 | The Clorox Company | Multilayer cleaning article with gripping layer and dry surface contact layer |
DE202016102924U1 (de) | 2016-06-01 | 2017-09-04 | Outotec (Finland) Oy | Zyklon zur Separation von Partikeln aus einem Fluid |
CN108499750B (zh) * | 2017-02-27 | 2019-12-20 | 松下知识产权经营株式会社 | 分离装置 |
CA3174436A1 (fr) * | 2020-03-06 | 2021-09-10 | Metso Outotec Finland Oy | Agencement de separateur a cyclone |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986004271A1 (fr) * | 1985-01-22 | 1986-07-31 | Carroll, Noel | Separateur a cyclone |
EP0284184A1 (fr) * | 1987-03-25 | 1988-09-28 | F.L. Smidth & Co. A/S | Cyclone |
EP0494650A2 (fr) * | 1991-01-11 | 1992-07-15 | Emtrol Corporation | Procédé et dispositif pour la séparation de particules d'un gaz chaud |
EP0763384A1 (fr) * | 1995-09-15 | 1997-03-19 | GEC ALSTHOM Stein Industrie | Séparateur centrifuge en particulier pour chaudière à lit fluidisé circulant |
US5771844A (en) * | 1996-04-04 | 1998-06-30 | Foster Wheeler Development Corp. | Cyclone separator having increased gas flow capacity |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT334475B (de) * | 1972-12-06 | 1976-01-25 | Hejlek Ing Franz | Vorrichtung zur kontinuierlichen anreicherung gasformiger isotope schwerer elemente |
JPH0538408A (ja) * | 1991-08-06 | 1993-02-19 | Mitsubishi Heavy Ind Ltd | 気液分離装置 |
-
1999
- 1999-01-18 FR FR9900464A patent/FR2788453B1/fr not_active Expired - Fee Related
-
2000
- 2000-01-13 EP EP00400087A patent/EP1020229B1/fr not_active Expired - Lifetime
- 2000-01-13 ES ES00400087T patent/ES2313874T3/es not_active Expired - Lifetime
- 2000-01-13 DE DE60040355T patent/DE60040355D1/de not_active Expired - Lifetime
- 2000-01-13 AT AT00400087T patent/ATE409524T1/de not_active IP Right Cessation
- 2000-01-14 US US09/482,515 patent/US6322601B1/en not_active Expired - Lifetime
- 2000-01-18 CN CNB001009990A patent/CN1140315C/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986004271A1 (fr) * | 1985-01-22 | 1986-07-31 | Carroll, Noel | Separateur a cyclone |
EP0284184A1 (fr) * | 1987-03-25 | 1988-09-28 | F.L. Smidth & Co. A/S | Cyclone |
EP0494650A2 (fr) * | 1991-01-11 | 1992-07-15 | Emtrol Corporation | Procédé et dispositif pour la séparation de particules d'un gaz chaud |
EP0763384A1 (fr) * | 1995-09-15 | 1997-03-19 | GEC ALSTHOM Stein Industrie | Séparateur centrifuge en particulier pour chaudière à lit fluidisé circulant |
US5771844A (en) * | 1996-04-04 | 1998-06-30 | Foster Wheeler Development Corp. | Cyclone separator having increased gas flow capacity |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002067756A1 (fr) * | 2001-02-24 | 2002-09-06 | Dyson Ltd | Appareil de separation cyclonique |
EP2213377A4 (fr) * | 2007-11-30 | 2015-11-18 | Mitsubishi Heavy Ind Ltd | Dispositif de séparation de poudre et brûleur de combustible solide |
EP2431096A1 (fr) | 2010-09-17 | 2012-03-21 | Alstom Technology Ltd | Séparateur à cyclone |
US9486727B2 (en) | 2010-09-17 | 2016-11-08 | General Electric Technology Gmbh | Cyclone separator |
Also Published As
Publication number | Publication date |
---|---|
FR2788453A1 (fr) | 2000-07-21 |
ATE409524T1 (de) | 2008-10-15 |
CN1140315C (zh) | 2004-03-03 |
EP1020229B1 (fr) | 2008-10-01 |
CN1264609A (zh) | 2000-08-30 |
US6322601B1 (en) | 2001-11-27 |
FR2788453B1 (fr) | 2001-02-23 |
DE60040355D1 (de) | 2008-11-13 |
ES2313874T3 (es) | 2009-03-16 |
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