Function - REMBE EXKOP Mini Operating Instructions Manual

2.3

Function

Normal production sequence
The QV II Quench Valve (D) is open to the full
pipe diameter with no pressure drop across the
valve.
QV II Quench Valve, REMBE
®
and Q-Rohr (B) ensure secondary protection
in the event of a dust explosion without
interrupting any production sequence.
During explosion
Vessel (A) is vented via the explosion venting
®
action of the REMBE
flame suppression with the Q-Rohr
the majority of the pressure wave and flame
front developed during the explosion is
reduced.
The explosion venting Q-Rohr
disc within the system immediately sends a
®MINI
signal to the EXKOP
which immediately initiates closure of the QV
Quench Valve (D).
During closure, a build-up of product occurs in
front of the QV II Quench Valve (D). This
causes a displacement of oxygen, so that the
dust-air concentration is moved out of the
explosive range and ignition capability is
reduced.
The explosion is completely isolated by the
closure of the QV II Quench Valve.
®
bursting discs
bursting disc or with
®
(B). Thus
®
(B) or bursting
Safety Controller (C)
page 6 of 25
EXKOP
Safety Controller
B
D
A
Safety Controller
B
D
A
Safety Controller
B
D
A
C
C
EXKOP
C
EXKOP
GBB-EXKOM-08157/2