Global Patent Index - EP 3994412 B1

EP 3994412 B1 20230419 - SYSTEM AND METHOD FOR CLEANING THE HEAT EXCHANGER OF A BOILER USING SHOCK WAVES

Title (en)

SYSTEM AND METHOD FOR CLEANING THE HEAT EXCHANGER OF A BOILER USING SHOCK WAVES

Title (de)

SYSTEM UND VERFAHREN ZUR REINIGUNG DES WÄRMETAUSCHERS EINES KESSELS MITTELS STOSSWELLEN

Title (fr)

SYSTÈME ET PROCÉDÉ DE NETTOYAGE PAR ONDES DE CHOC POUR ÉCHANGEUR THERMIQUE D'UNE CHAUDIÈRE

Publication

EP 3994412 B1 20230419 (FR)

Application

EP 20747014 A 20200630

Priority

  • FR 1907293 A 20190701
  • FR 2020000196 W 20200630

Abstract (en)

[origin: WO2021001606A1] The invention relates chiefly to a cleaning system (1), designed to generate shock waves from a pressurized gas and direct them against the surface of the exchanger, which system (1) comprises at least one cleaning device (10) comprising a high-pressure first chamber (2) intended to be fluidically connected to a pressurized-gas reservoir (3) so as to supply said first chamber (2) with high-pressure gas, a low-pressure second chamber (4) comprising a discharge orifice (5) for the shockwave (6), and a triggering device (7) that can be operated reversibly between a closed position that prevents fluidic communication between said first and second chambers (2, 4) and an open position that places said chambers (2, 4) in fluidic communication.

IPC 8 full level

F28G 7/00 (2006.01)

CPC (source: CN EP)

F28G 7/00 (2013.01 - CN EP)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

FR 3098291 A1 20210108; FR 3098291 B1 20210702; CN 114008404 A 20220201; EP 3994412 A1 20220511; EP 3994412 B1 20230419; ES 2951315 T3 20231019; PL 3994412 T3 20231204; PT 3994412 T 20230711; WO 2021001606 A1 20210107

DOCDB simple family (application)

FR 1907293 A 20190701; CN 202080032679 A 20200630; EP 20747014 A 20200630; ES 20747014 T 20200630; FR 2020000196 W 20200630; PL 20747014 T 20200630; PT 20747014 T 20200630