EP 0479937 B1 19930901 - A DEVICE IN GAS PURIFYING INSTALLATIONS FOR PREVENTING DISCHARGE OF UNPURIFIED GAS UPON CHANGES OF THE GAS-FLOW DIRECTION
Title (en)
A DEVICE IN GAS PURIFYING INSTALLATIONS FOR PREVENTING DISCHARGE OF UNPURIFIED GAS UPON CHANGES OF THE GAS-FLOW DIRECTION
Publication
Application
Priority
- SE 8902328 A 19890628
- SE 9000453 W 19900625
Abstract (en)
[origin: WO9100477A1] The invention relates primarily to gas purifying installations operating with reversal of the flow direction and having a double-purpose channel system, i.e. one which upon operation in one through-flow direction forms the inlet channel feeding polluted gas into the installation and upon operation in the opposite flow direction forms the purified gas discharging channel. In accordance with the invention polluted gas is prevented from being discharged into the atmosphere during and immediately after reversal of the flow direction by flushing the purifying installation with fresh air or other clean gas for a predetermined period of time.
IPC 1-7
IPC 8 full level
F23G 7/06 (2006.01)
CPC (source: EP)
F23G 7/061 (2013.01); F23G 7/066 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 9100477 A1 19910110; AT E93953 T1 19930915; AU 5951390 A 19910117; DE 69003108 D1 19931007; DE 69003108 T2 19940127; EP 0479937 A1 19920415; EP 0479937 B1 19930901; SE 463940 B 19910211; SE 8902328 D0 19890628; SE 8902328 L 19901229
DOCDB simple family (application)
SE 9000453 W 19900625; AT 90917830 T 19900625; AU 5951390 A 19900625; DE 69003108 T 19900625; EP 90917830 A 19900625; SE 8902328 A 19890628