Page 5 - RSBPBrochure

SYSTEM FOR EXPLOSION SUPPRESSION – HRD SYSTEM

BASIC PARTS OF THE HRD SYSTEM

CONTROL UNIT EXPLOSION DETECTOR HRD CONTAINER UNIT

Simple or multiple zone control unit evaluates Pressure detectors recognize incipient Special HRD vessels equipped by fast-
and archives detector information, activates explosion in time. They will pass this opening valves and other accessories
extinguishing bottles, monitors circuits for information to the control unit extremely contain extinguishing agent under stable
connection of other devices, provide data quickly. Their advantage is a short reaction pressure. When an explosion is detected,
to superior systems and serves as a user time (in milliseconds) and variability of use. they provide immediate and effective
interface to the operators. introduction of the extinguishing agent into
the protected equipment. Variability of bottle
sizes (5, 8, 20 or 50 liters), quick and fast
explosion suppression are the advantages.
Easy manipulation and simple maintenance
are a bonus for the customer.
EXPLOSION SUPPRESSION PROCESS
TIME: 0 ms 5 – 35 ms 40 ms 60 ms Progress of explosion pressure increase related to time
PRESSURE: 0 bar 0,03 – 0,15 bar 0,1 – 0,25 bar 0,2 – 0,4 bar Progress of explosion
Explosion pressure (bar) Progress of explosion with protection
without protection

Time (ms)
1. Initiation
2. Detection of explosion origin
1. Initiation 2. Detection 3. Extinguishing 5. Explosion 3. Activation of HRD container unit (extinguishing agents injection,
of explosion agents injection suppression explosion pressure reduction)
origin 4. Explosion 4. Explosion suppression
pressure reduction

In order to secure complete protection of protected technologies we recommend using the HRD system in combination with a product for preventing explosion
propagation – an HRD barrier.
5