The utility model relates to the technical field of high-pressure gas tanks, and provides a
water level pressure control device for a high-pressure gas tank group. Comprising a high-pressure gas tank group, a high-pressure
water level pipe, a
buoy, a circuit controller and a group of magnetic reed switches for controlling the
water level in the high-pressure water level
pipe to float in a water level range corresponding to a high-pressure mode or a water level range corresponding to a low-pressure mode, the high-pressure water level
pipe is communicated with the interior of the high-pressure gas tank group, the magnetic reed switches are arranged at different height positions of the outer wall of the high-pressure water level pipe and connected with the input end of the circuit controller, and the
control signal output end of the circuit controller is connected with the
control signal input end of the high-pressure pump. The
buoy is magnetic, is installed in the high-pressure water level pipe, and can move up and down along with the water level and trigger the magnetic
reed switch at the corresponding height. The
pressure range of the high-pressure gas tank group can be efficiently and rapidly adjusted, and pressure
dynamic control in different
forging modes can be achieved.