Accident chlorine recovery system

The utility model relates to the field of chlorine treatment in chlor-alkali industry, and particularly relates to an accident chlorine recovery system. The accident chlorine recovery system comprises an accident chlorine vacuum room, an accident chlorine pipeline and an accident chlorine absorbing device sequentially connected. The accident chlorine pipeline comprises a first connecting pipe and a second connecting pipe connected in parallel. The first connecting pipe is provided with a nano vacuum pump, and the second connecting pipe is provided with an induced draft fan. According to the accident chlorine recovery system provided by the utility model, when a steel cylinder leaks, the steel cylinder is lifted to the accident chlorine vacuum room to prevent chlorine from leaking to other places. Chlorine in the steel cylinder passes through the first connecting pipe and is pumped to the accident chlorine absorbing device under the effect of the nano vacuum pump to be absorbed. Chlorine leaking from the steel