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1. (WO2019045620) METHOD AND SYSTEM FOR CLEANING A HEAT EXCHANGER
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Pub. No.: WO/2019/045620 International Application No.: PCT/SE2018/050852
Publication Date: 07.03.2019 International Filing Date: 24.08.2018
IPC:
F28G 7/00 (2006.01) ,F01P 11/06 (2006.01) ,F28G 9/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28
HEAT EXCHANGE IN GENERAL
G
CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OF BOILERS
7
Cleaning by vibration
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
P
COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
11
Component parts, details, or accessories, not provided for in, or of interest apart from, groups F01P1/-F01P9/149
06
Cleaning; Combating corrosion
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28
HEAT EXCHANGE IN GENERAL
G
CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OF BOILERS
9
Cleaning by flushing or washing, e.g. with chemical solvents
Applicants:
SCANIA CV AB [SE/SE]; 151 87 Södertälje, SE
Inventors:
DUNBERGER, Lars; SE
KALLIO, Mikko; SE
LINDQVIST, Magnus; SE
Agent:
AHLING, Annika; SE
Priority Data:
1751050-401.09.2017SE
Title (EN) METHOD AND SYSTEM FOR CLEANING A HEAT EXCHANGER
(FR) PROCÉDÉ ET SYSTÈME DE NETTOYAGE D'ÉCHANGEUR DE CHALEUR
Abstract:
(EN) The present invention relates to a method for cleaning a heat exchanger (10). Said heat exchanger (10) comprises an inlet (12) which, during intended heating operation of the heat exchanger (10), is configured to receive a fluid, a plurality of channels (16) through which said fluid is arranged to flow for heating air passing between said channels (16) during said intended heating operation, and an outlet (14) for letting out the thus received fluid. The method comprises the steps of, during a cleaning operation, attaching a supply pipe (21) to said inlet (12) or outlet (14) for providing hot fluid to said heat exchanger (10); providing hot fluid through said supply pipe (21); and supplying pressurized air in pulses to said supply pipe (21) so as to provide said hot fluid to an increased flow rate through said plurality of channels (16) for cleaning said channels (16). The present invention also relates to an arrangement for cleaning a heat exchanger. The present invention also relates to a vehicle.
(FR) La présente invention concerne un procédé de nettoyage d'un échangeur de chaleur (10). L'échangeur de chaleur (10) comprend une entrée (12) conçue pour recevoir un fluide pendant un fonctionnement de chauffage prévu de l'échangeur de chaleur (10), une pluralité de canaux (16) à travers lesquels le fluide est amené à couler afin de chauffer l'air passant entre les canaux (16) pendant le fonctionnement de chauffage prévu, et une sortie (14) destinée à laisser sortir le fluide ainsi reçu. Pendant une manœuvre de nettoyage, le procédé consiste à fixer un tuyau d'alimentation (21) à l'entrée (12) ou à la sortie (14) afin d'alimenter en fluide chaud l'échangeur de chaleur (10) ; à alimenter un fluide chaud à travers le tuyau d'alimentation (21) ; et à apporter de l'air sous pression par impulsions au tuyau d'alimentation (21) afin de distribuer le fluide chaud à un débit augmenté à travers la pluralité de canaux (16) en vue de nettoyer les canaux (16). La présente invention concerne en outre un agencement servant à nettoyer un échangeur de chaleur. La présente invention concerne également un véhicule.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, 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, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)