爆炸抑制系统(IEP)
爆炸抑制系统由三部分组成:探测器;控制单元;和抑制器。如果发生点火,火球从点火内核膨胀,压力波(由温度升高产生)在火焰前沿前行。爆炸压力检测器被配置为在几毫秒内响应特征压力增加。 抑爆控制单元接收来自压力传感器的检测信号并向抑爆器发送释放信号。抑制剂以高速和高速注入受保护的容器,使用专门设计的喷嘴来分散抑制剂并吞没正在生长的火球。这会迅速冷却火球,减少进一步燃烧并降低爆炸压力。大多数爆炸抑制系统的设计中不可或缺的是化学或机械爆炸隔离系统,以降低火焰/爆炸传播到其他连接的过程设备的风险。
An explosion suppression system consists of three components: a detector; control unit; and suppressor(s). In the event an ignition occurs, the fireball expands from the ignition kernel with the pressure wave (created by the increase in temperature) traveling ahead of the flame front. Explosion pressure detectors are configured to respond to the characteristic pressure increase within milliseconds.
The explosion suppression control unit receives the detection signal from the pressure sensors and sends a release signal to the explosion suppressor(s). Suppressant is injected into the protected vessel at high rate and high velocity, using specially designed nozzles to disperse the suppressant and engulf the growing fireball. This rapidly cools the fireball, mitigating further combustion and reducing the explosion pressure. Integral to the design of most explosion suppression system is a chemical or mechanical explosion isolation systems to reduce the risk of flame/explosion propagation to other connected process equipment.