Chemical explosion suppression system is designed to provide an active method to protect process system equipment from a dust or gas explosion hazard. The fundamental operation of the system is detection of the pressure rise during the initial stage of an explosion, followed by fast injection and homogeneous distribution of an extinguishing agent into the protected vessel. The chemical suppression system consists of a controller, pressure or optical detectors, and the high rate discharge (HRD) bottles. As a deflagration develops, the pressure inside the vessel will begin to build rapidly. The pressure detector will detect the rate of pressure rise over a certain time period and activate the High Rate Discharge bottles. Once activated, the HRD bottles will disperse suppressant into the protected vessel inhibiting the explosion from further developing, thus reducing the pressure and preventing any vessel breach.
Time: 0 ms
Pressure: 0 bar
Ignition
Time: 5 - 35 ms
Pressure: 0,03 - 0,1 bar
Explosion Detection
Time: 40 ms
Pressure: 0,08 - 0,15 bar
Extinguishing Agent Injection
Time: 60 ms
Pressure: 0,15 - 0,2 bar
Explosion Damping
Applications
Explosion suppression systems can be used on a variety of processes and process equipment. The main uses of suppression systems can be listed as follows;
Pneumatic conveying equipment
Dust collectors
Cyclones
Bucket elevators
Mills
Silos
Dryers
Fluid bed dryers
Spray dryers
Mixers
Crushers
Advantages of Flameless Venting
Well tried and effective technology
Fast reaction
High reliability
Use in inside and outside areas
Suitable for toxic materials
Independent archiving of detector data
Customization
Simple and fast Exchange of components after activation