| 摘要 |
<p>Submarine gas alarm system comprising a barrier (101, 201, 301) for the protection of marine or submarine installations, which generates alarm signals when the barrier is passed over. Basically, the system comprises one or a plurality of net assemblies formed by flexible tubular conduits which receive a fluid in the inside thereof. These net units are connected to fluid impulse means (102, 202, 302) which maintain a pressure or a flow in the fluid. Additionally, the system is provided with pressure or flow transducer means (105) which transmit a signal to control means (106) when the pressure or flow parameter varies in excess of predetermined thresholds of the system, in which case the transducer means activate alarm means.</p> |
