Gas pipeline pressure adjusting device

The utility model discloses a gas pipeline pressure regulating device which comprises a pressure regulating valve and a gas storage tank, the pressure regulating valve comprises a valve body, a valve rod and a diaphragm, the bottom of the valve body is provided with a gas inlet and a gas outlet, the diaphragm is fixed in the valve body, the diaphragm is provided with a gravity block, the valve rod is arranged in the valve body and connected with the diaphragm, and the bottom of the valve rod is provided with a blocking plate. The diaphragm divides an inner cavity of the valve body into an upper cavity and a lower cavity, the lower cavity is connected with a gas storage tank through a communicating pipe, a first sucking pump and a second sucking pump are arranged on the communicating pipe, and the pressure adjusting device can adjust the opening degree of the valve in time and adjust the pressure of a gas pipeline at the rear end of the valve. 本实用新型公开了一种气体管道压力调节装置，包括压力调节阀和气体储存罐，压力调节阀包括阀体、阀杆和膜片，阀体的底部设有进气口和出气口，膜