EP 1224013 A2 20020724 - METHOD AND DEVICE FOR DAMPENING THE PRESSURE SURGE ON FLAME ARRESTERS DURING DETONATIONS
Title (en)
METHOD AND DEVICE FOR DAMPENING THE PRESSURE SURGE ON FLAME ARRESTERS DURING DETONATIONS
Title (de)
VERFAHREN UND VORRICHTUNG ZUM DÄMPFEN DES DRUCKSTOSSES AN FLAMMENSPERREN BEI DETONATIONEN
Title (fr)
PROCEDE ET DISPOSITIF POUR AMORTIR LE COUP DE BELIER DANS DES DISPOSITIFS ANTIRETOUR DE FLAMME EN CAS DE DETONATIONS
Publication
Application
Priority
- DE 0004199 W 20001120
- DE 19957837 A 19991125
Abstract (en)
[origin: WO0141876A2] The invention relates to a method for dampening the pressure surge on flame arresters, especially strip-shaped safety devices, during detonations of a combustible gas/air and/or vapor/air mixture in installation systems, container systems and pipe systems according to which the approaching detonation front is split up. The invention also relates to a device for carrying out said method. The device comprises housing parts, which are located along the pipe axis and are straight or angular, and comprises a dry flame arrester, which is arranged inside the housing parts in a vertical manner with regard to the pipe axis. Said flame arrester consists of at least one strip-shaped safety device with or without a surge interceptor that is oriented toward the ignition source. The approaching detonation front is split up into and evened out in a multitude of partial reaction fronts that can subsequently diffuse in an unoriented manner and with stochastically distributed flow paths in a medium, which absorbs kinetic and thermal energy, and the partial reaction fronts can run in opposite directions therein. The outflowing partial reaction fronts are subsequently evened out to form an almost laminar reaction front which then flows to the actual strip-shaped safety device in order to extinguish possible flames. The absorbing medium is comprised of a gas-permeable packet with an irregular packaging made of absorbent bodies, for example, spring steel wire spirals, knitted fabrics, or heavy metals.
IPC 1-7
IPC 8 full level
A62C 4/02 (2006.01)
CPC (source: EP)
A62C 4/02 (2013.01)
Citation (search report)
See references of WO 0141876A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0141876 A2 20010614; WO 0141876 A3 20020510; AU 2504201 A 20010618; DE 19957837 A1 20010628; DE 19957837 C2 20011115; EP 1224013 A2 20020724
DOCDB simple family (application)
DE 0004199 W 20001120; AU 2504201 A 20001120; DE 19957837 A 19991125; EP 00988661 A 20001120