Development of the Intelligent Secondary Protection Device of Sewage Pipeline Exhaust Valve

In allusion to the problems which exist in sewage pipeline exhaust valves, such as failure of sewage flow direction judgment, lack of secondary leak protection and prone to false alarms, an intelligent secondary protection device featuring IOT control is developed. The intelligent device has such functions as sewage flow direction judgment, secondary leak protection, self-powered and IOT control. Thanks to its small size, it can be installed at the top of existing SCAR composite sewage exhaust valve. It can achieve the effect of advancing the existing secondary device from less pollution to zero pollution, properly judge the sewage flow direction to prevent false alarm, and thus enhance the safe operation level of sewage pipeline exhaust valves.