EP0641973B1 - Dispositif pour l'évacuation de fluide gazeux - Google Patents
Dispositif pour l'évacuation de fluide gazeux Download PDFInfo
- Publication number
- EP0641973B1 EP0641973B1 EP94401889A EP94401889A EP0641973B1 EP 0641973 B1 EP0641973 B1 EP 0641973B1 EP 94401889 A EP94401889 A EP 94401889A EP 94401889 A EP94401889 A EP 94401889A EP 0641973 B1 EP0641973 B1 EP 0641973B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lower cover
- cover
- substantially equal
- base
- preferably substantially
- 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.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/08—Tops for chimneys or ventilating shafts; Terminals for flues with coaxial cones or louvres
Definitions
- the invention relates to a device for the evacuation of gaseous fluid, in particular of exhaust gases or smoke.
- Such devices are for example of the type comprising a lower element, upper element, spacers to rigidly hold the two coaxial elements spaced from each other so as to define between them a passage, and a conduit passing through the lower element and opening into the passage.
- Lower and upper elements are limited by conical or frustoconical side walls, of so that said passage has, in axial section, a shape general of venturi or convergent / divergent, along from a radial direction orthogonal to the general axis of the device. This axis is generally at least substantially vertical.
- Such a device is generally mounted on the above the roof of the building for which it is intended.
- the conduit makes it possible to capture and channel gases or fumes, which exit from this conduit by its upper end generally located at the upper limit of the element lower, at the very place of the venturi-shaped passage.
- the gas or smoke fluid is then diverted and entrained in this passage to the outside of the device and the atmosphere outside. The presence of wind accelerates this process.
- a such a device is described, for example, in the document FR-A-1 403 955.
- Such a device is generally arranged in height and is therefore likely to experience rising winds or plunging or horizontal winds. These devices then have drawbacks for certain wind directions.
- French patent application FR-A-2 034 434 describes a device for discharging gaseous fluid, in particular exhaust gases or fumes, including an element upper and lower element fixed to each other by connecting spacers.
- Upper element includes upper cap generally cone-shaped and connecting spacers are arranged near the axis of the device.
- European patent application EP-A-0 079 256 describes a device for the evacuation of gas or smoke comprising an upper element and a lower element.
- the lower element includes a bottom lower and a lower cap with a lip ring adjoining the base.
- Upper element includes upper cap and an upper bottom, the upper hat being provided an annular lip adjoining the base.
- French patent application FR-A-2 438 795 describes a static dynamic vacuum cleaner comprising means noise absorption and attenuation, consisting of a mass of sound-absorbing material, in particular wool of rock or glass.
- French patent application FR-A-387 721 concerns a miter vacuum cleaner for fireplaces consisting of two tapered crowns arranged in opposite directions and placed one at the top of a central pipe fitting on the chimney, the other at a certain distance from the first crown, and connected to it by supports formed by several irons and flats.
- patent application FR-A-507,229 describes a device ensuring the evacuation of gaseous fluids, applied to piping and composed of two trunks of cone whose vertices are opposite, with a spacing between them depending on the diameter of the piping.
- Devices for the discharge of gas or smoke are classified according to quality standards which are according to their ability to evacuate gases or fumes rejected whatever the wind conditions.
- the invention aims to propose a device of the type general described in document FR-A-1 403 955 and whose qualities of evacuation of the gases or fumes rejected are significantly improved compared to the state of the technical, whatever the conditions of wind.
- the invention proposes a device for the evacuation of gaseous fluid, including exhaust gases or smoke, comprising an element upper diameter D and a lower element, superimposed, coaxial, rigidly fixed to each other by spacers of liaison.
- the lower element includes a lower bottom and a lower cap each of generally frustoconical shape, crossed coaxially by a pipe of given diameter d opening at one of its ends, lower hat side, in the space between the two elements, the other end being fixed to the arrival of gaseous fluid.
- the bottom bottom and bottom cap are rigidly fixed to each other by their large common base.
- the lower cap is provided with an annular lip, adjoining the large common base, directed downwards from the large base and in direct extension of the surface of the lower hat.
- the top element includes a top hat in general cone shape and a bottom superior. They are rigidly fixed to each other by their great common base.
- the top hat is provided an annular lip, adjoining the large common base, directed downward from the large base and into the extension of the surface of the top hat, the connecting spacers resting on the frustoconical surface of the lower cap.
- the device according to the invention is characterized in that that the bottom bottom includes a crown peripheral parallel to the frustoconical surface of the lower hat.
- the small base of the lower cap includes an annular projection of axial direction having a given height h.
- the device presents dimensional reports as a function of the diameter of the hose able to optimize the aerodynamic qualities of the device.
- the main advantage of the device according to the invention provides significant improvements in the evacuation of gases and fumes, especially in the case of ascending winds such that the device has an incidence between 30 and 90 ° from the wind direction.
- the invention relates to a device for rejection gases or fumes.
- Such devices are intended in particular to be mounted on evacuation chimneys of gaseous fluid arranged on buildings for use residential, or commercial, or industrial.
- Such a device generally has an axis 40 which, when the device is mounted on the chimney, is most often vertical or close to vertical.
- axis 40 which, when the device is mounted on the chimney, is most often vertical or close to vertical.
- the axis 40 is preferably an axis of revolution. It is in this variant that the description which follows. However, in other forms of realization, axis 40 is only of symmetry or even does not defines that the general direction of the device 1.
- the device comprises a lower element 3, a upper element 2; and organs 4 of association of lower 3 and upper 2 elements so that said elements are spaced coaxially and facing one of the other thus providing between them a free passage 8 for gases or fumes.
- the free passage 8 in axial cross section has a general form of venturi or convergent / divergent.
- the device further comprises a conduit 7 for gases or smoke passing through the lower element 3 and emerging through its downstream opening 15 in passage 8 (the qualifier "downstream" means in relation to the normal direction of traffic gases or fumes when rejected by the device).
- the duct 7 has a certain axial length. It is intended to be connected to the chimney by means of flanges or others.
- the lower element 3 includes a bottom 5 and a bottom cap 6, each of generally frustoconical form.
- the bottom bottom 5 and the lower cap 6 are crossed coaxially by the pipe 7 having a given diameter d.
- Pipe 7 leads to one of its ends 15, lower hat side 6, in the space 8 between the two elements 2, 3.
- the other end of the pipe 7 is fixed to the inlet of the gaseous fluid namely the fireplace.
- the pipe 7 advantageously has a radial annular projection 21 at its side end space 8 on which the perimeter is blocked in abutment from the small base of the lower hat.
- the bottom bottom 5 and the bottom cap 6 are rigidly fixed to each other.
- the lower cap 6 is provided with an annular lip 10, adjoining a large common base 9, directed downward from said large base 9 and in line with the surface of the lower hat 6.
- the lower bottom 5 according to the invention includes a peripheral crown 17c parallel to the frustoconical surface of the lower cap 6
- One of the characteristics of the present invention is based on the causes the annular lip 10 to extend directly of the frustoconical surface of the lower cap 6 and because that the connecting spacers 4 rest on the surface frustoconical of the upper cap 6.
- each of spacers 4 can, for example, be provided with its lower end of a lower connecting lug 18.
- the lower tab 18 is parallel to the frustoconical surface of the hat lower 6, in contact with and integral with it, and extends in a direction tangential to the axis 40 of the device.
- the tab of connection 18 may be in one piece with the spacer, in another embodiment the lug 18 can be reported at the end of the spacer.
- the lower cap 6 comprises in its frustoconical surface axial peripheral bosses intended to receive the end of the lower element side 3 of the spacers 4.
- Each boss has a facing transverse base of a transverse flat of the peripheral crown 17c of the bottom bottom 5. Together they define a base transverse mounting and securing of the end lower element side 3 of a spacer 4 on the element lower 3. So the lower end of the spacer is somehow immersed in the frustoconical surface of the lower cap 6 so that externally, the spacer appears emerged from said frustoconical surface.
- the element upper 2 includes a top hat 12 shaped general of cone and an upper bottom 11.
- the upper bottom 11 can take a general conical or frustoconical shape small base 17. They are rigidly fixed to each other by their large common base 13.
- the upper bottom 11 and the upper cap 12 each include a transverse peripheral crown 17a, 17b opposite. These transverse peripheral rings 17a, 17b define a transverse mounting and joining strip the end of the upper element side 2 of the spacers 4 on the upper element 2.
- each spacer 4 may, for example, have an upper tab of link 19 parallel to, in contact with and integral with the strip transverse and extending in a tangential direction.
- the embodiments described above are applicable to the upper leg 19.
- the upper cap 12 further comprises a lip 14 annular, extending from the crown peripheral 17a of the upper cap 12 and overlapping of the peripheral crown 17b of the upper base 11.
- the small base of the lower cap includes an annular projection 16 of axial and height direction h.
- this annular projection axial 16 can be produced by the end 15 of the pipe 7 protruding from the small base of the lower hat 6 towards space 8.
- the device according to the invention is such that the maximum diameter D of the upper element 2 is substantially equal to the maximum diameter of the element lower 3.
- the dimensional ratio D / d is advantageously between 1.5 and 3.
- the dimensional ratio D / d is preferably substantially equal to 2.25.
- the dimensional ratio h / d (h being the height of the annular projection 16) is advantageously between 0.01 and 0.04.
- the dimensional ratio h / d is preferably substantially equal to 0.0125.
- H be the minimum distance separating the two upper and lower elements (i.e. in the realization shown in the figures, the distance separating the end 15 of the small base 17 from the bottom higher 11), the dimensional ratio H / d is advantageously between 0.25 and 0.70.
- the report dimensional H / d is preferably substantially equal to 0.45.
- angle a is advantageously between 15 ° and 45 ° and preferably substantially equal to 30 °.
- angles b and g are advantageously between 0 ° and 30 ° and preferably equal to 22 °.
- the angle d is advantageously between 0 ° and 30 ° and preferably substantially equal to 22 ° or 8 °.
- d 2 be the diameter of the small closed base 17 of the upper bottom 11, the dimensional ratio d 2 / d is advantageously between 1 and 2.25.
- the device comprises three connecting struts 4 arranged every 120 ° at its periphery.
- the spacers 4 are flat in shape with rounded edges, of length t 3 . and of thickness e 3
- the dimensional ratio t 3 / d is advantageously between 0.04 and 0.07 and preferably substantially equal to 0.05.
- the dimensional ratio e 3 / t 3 is advantageously between 0.2 and 0.5.
- the angle 1 is advantageously between 45 ° and 70 ° and preferably substantially equal to 60 °.
- transverse peripheral rings 17a, 17b defining the transverse mounting and joining band of the end of the upper element side 2 of the spacers on the upper element 2 have a radial width substantially equal to the length t 3 of said spacers 4.
- the device according to the invention may further comprise a mesh element (not shown), of cylindrical shape coaxial with, and extending between the upper 2 and lower elements 3.
- This mesh element of cylindrical shape has a diameter at least greater than the diameter d 2 of the small closed base 17 of the upper bottom 11 or, in the case where the upper bottom is of conical shape, greater than the diameter d of the pipe 7.
- this mesh element comprises meshes of 20 mm x 20 mm to more or less 2mm.
- the device according to the invention can comprise coaxial annular deflectors 50 carried by the frustoconical surface of the upper bottom 11.
Landscapes
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Glass Compositions (AREA)
- Plasma Technology (AREA)
- Gas Separation By Absorption (AREA)
- Cyclones (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Catching Or Destruction (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Treating Waste Gases (AREA)
Description
- la figure 1 est une vue schématique, en coupe verticale diamétrale d'un dispositif selon la présente invention.
- la figure 2 est une vue schématique, en coupe horizontale selon la ligne II-II du dispositif représenté sur la figure 1.
TABLEAU RECAPITULATIF | ||
FOURCHETTE | VALEUR PREFEREE | |
D/d | 1,5 - 3 | 2,25 |
h/d | 0,01 - 0,04 | 0,0125 |
H/d | 0,25 - 0,70 | 0,45 |
d2/d | 1 - 2,25 | 1 |
t3/d | 0,04 - 0,07 | 0,05 |
e3/t3 | 0,2 -0,5 | / |
a | 15° - 45° | 30° |
b | 0° - 30° | 22° |
g | 0° - 30° | 22° |
d | 0° - 30° | 22° |
l | 45° - 70° | 60° |
Claims (14)
- Dispositif pour l'évacuation de fluide gazeux, notamment de gaz rejetés ou de fumée, comprenant un élément supérieur (2) de diamètre D et un élément inférieur (3), superposés, coaxiaux, rigidement fixés l'un à l'autre par des entretoises de liaison (4) ; l'élément inférieur (3) comprenant un fond inférieur (5) et un chapeau inférieur (6), chacun de forme générale tronconique, traversés coaxialement par un tuyau (7) de diamètre donné d débouchant à une de ses extrémité (15), côté chapeau inférieur (6), dans l'espace (8) entre les deux éléments (2, 3), l'autre extrémité étant fixée à l'arrivée de fluide gazeux, le fond inférieur (5) et le chapeau inférieur (6) étant rigidement fixés l'un à l'autre par leur grande base commune (9) ; le chapeau inférieur (6) étant pourvu d'une lèvre (10) annulaire, attenante à la grande base commune (9), dirigée vers le bas à partir de la grande base (9) et dans le prolongement direct de la surface du chapeau inférieur (6) ; l'élément supérieur (2) comprenant un chapeau supérieur (12) en forme générale de cône et un fond supérieur (11), rigidement fixés l'un à l'autre par leur grande base commune (13), le chapeau supérieur (12) étant pourvu d'une lèvre (14) annulaire, attenante à la grande base commune (13), dirigée vers le bas à partir de la grande base (13) et dans le prolongement de la surface du chapeau supérieur (12) ; les entretoises de liaison (4) reposant sur la surface tronconique du chapeau inférieur (6) ;
caractérisé en ce que le fond inférieur (5) comprend une couronne périphérique (17c) parallèle à la surface tronconique du chapeau inférieur (6). - Dispositif selon la revendication 1, caractérisé en ce que le fond supérieur (11) et le chapeau supérieur (12) comprennent chacun une couronne périphérique transversale (17a, 17b) en regard, définissant une bande transversale de montage et de solidarisation de l'extrémité côté élément supérieur (2) des entretoises (4) sur l'élément supérieur (2), la lèvre (14) annulaire venant en prolongement de la couronne périphérique (17a) du chapeau supérieur (12) et en recouvrement de la couronne périphérique (17b) du fond supérieur (11).
- Dispositif selon la revendication 1 ou 2, caractérisé en ce que la petite base du chapeau inférieur comprend une saillie annulaire (16) de direction axiale et de hauteur h, le rapport dimensionnel h/d étant compris entre 0,01 et 0,04, et préférentiellement sensiblement égal à 0,0125.
- Dispositif selon la revendication 3, caractérisé en ce que la saillie annulaire axiale (16) est réalisée par l'extrémité (15) du tuyau (7) dépassant de la petite base du chapeau inférieur (6).
- Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le fond supérieur (11) a une forme en tronc de cône de petite base (17) fermée de diamètre d2, le rapport dimensionnel d2/d étant compris entre 1 et 2,25 et préférentiellement sensiblement égal à 1.
- Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le diamètre maximal D de l'élément supérieur (2) est sensiblement égal au diamètre maximal de l'élément inférieur (3), le rapport dimensionnel D/d étant compris entre 1,5 et 3, et préférentiellement sensiblement égal à 2,25.
- Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que H étant la distance minimale séparant les deux éléments supérieur et inférieur, le rapport dimensionnel H/d est compris entre 0,25 et 0,70 et préférentiellement sensiblement égal à 0,45.
- Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'angle a que fait la surface tronconique du chapeau inférieur (6) avec la grande base (9) est compris entre 15° et 45°, et préférentiellement sensiblement égal à 30°.
- Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'angle b et/ou l'angle g et/ou l'angle d que font respectivement la surface tronconique du fond inférieur (5), la surface conique du chapeau supérieur (12), et la surface du fond supérieur (11) avec les grandes bases (9, 13) est/sont compris entre 0° et 30°, et préférentiellement sensiblement égal/égaux à 22°.
- Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'il comprend en outre un élément de grillage, de forme cylindrique coaxiale avec, et s'étendant entre les éléments supérieur (2) et inférieur (3), de diamètre au moins supérieur au diamètre (d2) ou supérieur au diamètre (d), ledit grillage ayant préférentiellement des mailles de 20 mm x 20 mm, plus ou moins 2 mm.
- Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu'il comprend au moins deux entretoises (4) disposées à la périphérie du dispositif, les entretoises étant de forme aplatie de longueur radiale t3 et d'épaisseur tangentielle e3, le rapport dimensionnel t3/d étant compris entre 0,04 et 0,07, et préférentiellement sensiblement égal à 0,05, le rapport dimensionnel e3/t3 étant compris entre 0,2 et 0,5.
- Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que chacune des entretoises (4), en position de service, comprend à son extrémité inférieure une patte de liaison (18) parallèle à, et au contact et solidaire de la surface tronconique du chapeau inférieur, et s'étendant dans une direction tangentielle à l'axe (40) du dispositif.
- Dispositif selon l'une quelconque des revendications 1 à 12, caractérisé en ce que l'angle 1 que font les lèvres annulaires (10, 14) avec les grandes bases (9, 13) est compris entre 45° et 70°, et préférentiellement sensiblement égal à 60°.
- Dispositif selon l'une quelconque des revendications 1 à 13, caractérisé en ce qu'il comprend en outre un ou plusieurs déflecteur(s) annulaire(s) (50) disposé(s) coaxialement sur la surface du fond supérieur (11).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9310516A FR2709533B1 (fr) | 1993-09-03 | 1993-09-03 | Dispositif pour l'évacuation de fluide gazeux. |
FR9310516 | 1993-09-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0641973A1 EP0641973A1 (fr) | 1995-03-08 |
EP0641973B1 true EP0641973B1 (fr) | 1998-10-21 |
Family
ID=9450549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94401889A Expired - Lifetime EP0641973B1 (fr) | 1993-09-03 | 1994-08-24 | Dispositif pour l'évacuation de fluide gazeux |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0641973B1 (fr) |
AT (1) | ATE172527T1 (fr) |
DE (1) | DE69414061T2 (fr) |
ES (1) | ES2127360T3 (fr) |
FR (1) | FR2709533B1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2740862B1 (fr) | 1995-11-03 | 1998-01-23 | Amphoux Andre | Dispositif pour aspirer un fluide gazeux a travers un conduit pour le rejeter a l'exterieur de celui-ci |
FR2763387B1 (fr) | 1997-05-13 | 1999-07-23 | Andre Amphoux | Dispositif d'injection de gaz pour l'aide au tirage dans un systeme de transport de fluide gazeux |
FR2763390B1 (fr) | 1997-05-13 | 1999-07-23 | Andre Amphoux | Systeme de ventilation avec injection d'air supplementaire pour l'aide au tirage |
FR2782781B1 (fr) | 1998-09-02 | 2000-09-29 | Andre Amphoux | Dispositif de securite pour systemes d'evacuation de fluides gazeux |
FR2869976B1 (fr) * | 2004-05-06 | 2006-08-18 | Andre Amphoux | Extracteur d'air du type statique comprenant une partie superieure dont la face externe est inclinee |
US20180266715A1 (en) * | 2017-03-20 | 2018-09-20 | Daniel Edmiston | Wind Powered Gas Extractor |
CN108006681A (zh) * | 2017-12-30 | 2018-05-08 | 江苏永益环保科技有限公司 | 降噪防雨排水风帽 |
WO2020065357A1 (fr) | 2018-09-27 | 2020-04-02 | Katona Zoltan | Élément terminal de sécurité |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR387721A (fr) * | 1908-03-02 | 1908-07-21 | Societe Veuve E. Charpentier Et Cie | Mitre aspiratrice |
FR507229A (fr) * | 1919-10-18 | 1920-09-08 | Maurice Poucheux | Aspirateur |
US3347147A (en) * | 1967-03-02 | 1967-10-17 | Ben O Howard | Exhauster including venturi means |
FR2034434A6 (fr) * | 1969-03-31 | 1970-12-11 | Vonlanthen Jean | |
FR2438795B2 (fr) * | 1978-10-13 | 1986-04-04 | Amphoux Andre | Aspirateur statico-dynamique de fluides gazeux |
FR2514469B1 (fr) * | 1981-10-13 | 1986-04-04 | Amphoux Andre | Dispositif aspirateur de fluide gazeux statique, dynamique et mecanique |
FR2518710B1 (fr) * | 1981-12-18 | 1988-09-23 | Amphoux Andre | Aspirateur statique de fluide gazeux perfectionne |
-
1993
- 1993-09-03 FR FR9310516A patent/FR2709533B1/fr not_active Expired - Lifetime
-
1994
- 1994-08-24 DE DE69414061T patent/DE69414061T2/de not_active Expired - Fee Related
- 1994-08-24 AT AT94401889T patent/ATE172527T1/de not_active IP Right Cessation
- 1994-08-24 EP EP94401889A patent/EP0641973B1/fr not_active Expired - Lifetime
- 1994-08-24 ES ES94401889T patent/ES2127360T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0641973A1 (fr) | 1995-03-08 |
FR2709533B1 (fr) | 1995-11-03 |
ES2127360T3 (es) | 1999-04-16 |
ATE172527T1 (de) | 1998-11-15 |
DE69414061T2 (de) | 1999-06-17 |
FR2709533A1 (fr) | 1995-03-10 |
DE69414061D1 (de) | 1998-11-26 |
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