The application discloses a kind of
coal supercritical water gasification hydrogen production
system pipeline leakage alarm protection device, when pipeline leaks, supercritical water in pipeline and gas product from high temperature and
high pressure environment in
pipe enter to normal pressure environment outside
pipe, from supercritical state into
superheated steam state, volume rapidly expands, produce
water vapor flow, push semicylindrical blade to move back, at this time, the circuit consisting of semicylindrical blade, spring,
electrode contact, alarm component and power supply is connected, and alarm component alarms.Alarm at the same time, high-temperature
water vapor and gas product leaked by shell are introduced to condenser from connecting
pipe to realize gas-liquid separation, and gas product can be further collected or emptied subsequently.The application has simple structure, convenient disassembly and
assembly, can issue alarm when pipeline leaks, has a good reminding effect on normal operation of
system and safety of operating personnel, and avoids the risk that operating personnel is injured by directly injected high-temperature gas.