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1. (WO2010076446) DEVICE FOR REDUCING FOULING INSIDE A TUBE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/076446 International Application No.: PCT/FR2009/052374
Publication Date: 08.07.2010 International Filing Date: 02.12.2009
IPC:
B08B 9/032 (2006.01) ,F28F 13/12 (2006.01) ,F28F 19/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
08
CLEANING
B
CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
9
Cleaning hollow articles by methods or apparatus specially adapted thereto
02
Cleaning pipes or tubes or systems of pipes or tubes
027
Cleaning the internal surfaces; Removal of blockages
032
by the mechanical action of a moving fluid, e.g. by flushing
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28
HEAT EXCHANGE IN GENERAL
F
DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
13
Arrangements for modifying heat transfer, e.g. increasing, decreasing
06
by affecting the pattern of flow of the heat-exchange media
12
by creating turbulence, e.g. by stirring, by increasing the force of circulation
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28
HEAT EXCHANGE IN GENERAL
F
DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
19
Preventing the formation of deposits or corrosion, e.g. by using filters
Applicants:
TOTAL RAFFINAGE MARKETING [FR/FR]; 24 Cours Michelet F-92800 Puteaux, FR (AllExceptUS)
COTTARD, Bernard [FR/FR]; FR (UsOnly)
AQUINO, Brice [FR/FR]; FR (UsOnly)
Inventors:
COTTARD, Bernard; FR
AQUINO, Brice; FR
Agent:
RADAULT, Gabrielle; Cabinet JOLLY 54, rue de Clichy F-75009 Paris, FR
Priority Data:
085884819.12.2008FR
Title (EN) DEVICE FOR REDUCING FOULING INSIDE A TUBE
(FR) DISPOSITIF POUR LA REDUCTION DE L'ENCRASSEMENT A L'INTERIEUR D'UN TUBE
Abstract:
(EN) The invention relates to a device for reducing fouling inside a tube (1) through which a fluid (F) flows, comprising at least one turbulence generation device, said device comprising a mobile rotary element (2) connected to a stationary bearing element (3) rigidly connectable to the upstream end of the tube (1), said mobile rotary element (2) including an upstream portion (4) defining a journal and including a mechanical link (5) with the stationary bearing element (3) and enabling the free rotation of the mobile element (2) on itself about the axis of the tube (1), a helix-shaped downstream portion (6) including a plurality of turns and shaped so as to be rotated by the flow of fluid (F) in the tube (1), wherein the upstream (4) and downstream (6) portions of the mobile rotary element (2) are connected to each other by an elongate flexible connection capable of deformation along the entire length thereof (7), and the downstream portion (6) comprises at least one turn potion having a pitch (8) that is reversed relative to the pitch of the other turns. The invention also relates to a heat exchanger including a plurality of tubes through which a fluid flows and including at least one fouling-reducing device.
(FR) La présente invention concerne un dispositif réducteur d'encrassement de l'intérieur d'un tube (1) traversé par un fluide (F), du type comportant au moins un élément générateur de turbulences, ledit dispositif étant constitué d'un élément rotatif mobile (2) relié à un élément fixe formant palier (3), apte à être rendu rigidement solidaire de l'extrémité amont du tube (1), ledit élément rotatif mobile (2), comprenant une partie amont (4) formant un tourillon comprenant une liaison mécanique (5) avec l'élément fixe formant palier (3) et permettant la libre rotation de l'élément mobile (2) sur lui-même autour de l'axe du tube (1), une partie aval (6) en forme d'hélice constituée de plusieurs spires et conformée de manière à être entraînée en rotation par l'écoulement du fluide (F) dans le tube (1), dans lequel les parties amont (4) et aval (6) de l'élément rotatif mobile (2) sont reliées l'une à l'autre par un raccord souple longiligne déformable sur toute sa longueur (7), et la partie aval (6) contient au moins une portion de spire dont le pas est inversé (8) par rapport au pas des autres spires. Ainsi qu'un échangeur de chaleur comprenant une pluralité de tubes traversés par un fluide et comprenant au moins un dispositif réducteur d'encrassement.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
EP2367642ES2415908FR2940152