Fuel gas leakage alarm hierarchical control system for residential area

The utility model discloses a fuel gas leakage alarm hierarchical control system for a residential area, which comprises a fuel gas main pipe, and the fuel gas main pipe is communicated with a plurality of resident kitchen gas in a residential building through a plurality of fuel gas branch pipes; an emergency cut-off branch valve is arranged on the fuel gas branch pipe of each resident kitchen, a fuel gas alarm device is further arranged in each resident kitchen, and the emergency cut-off valve in each resident kitchen is in signal connection with the fuel gas alarm device. The gas alarm device in the kitchen of each resident is in signal connection with the Internet of Things monitoring platform through the Internet of Things; the gas header pipe is provided with an emergency cut-off main valve, and the emergency cut-off main valve is in signal connection with the Internet of Things monitoring platform through a valve control box. According to the utility model, the emergency cut-off branch valve used as a