Patent ID: 8539972

Claim:
A low consumption and intelligent safe gas-supply system using gas tanks, wherein said system comprises at least two gas tanks and gas tank valves installed on the at least two gas tanks, a charge valve with a check valve, at least two gas-filled parallel unit pipes, a high pressure sensor, at least two gas-supply parallel unit pipes, a gas-filled conduit, a gas-supply main conduit, a reset pressure sensor, at least two solenoid valves each with a check valve with a solenoid valve with a gas conduit passage that can be cut-off in a reverse direction, and an electronic control module (ECM); an output gas conduit passage of the charge valve with check valve is connected to one end of every gas-filled parallel unit pipe through said gas-filled conduit, the other end of every gas-filled parallel unit pipe is connected to a check valve gas conduit passage which is at one end of the one solenoid valve with check valve, one end of every gas-supply parallel unit pipe is connected to a solenoid valve gas conduit passage at said end of one solenoid valve with check valve or the other end of another check valve whose one end is connected to said solenoid valve gas conduit passage, the other end of the solenoid valve with check valve is connected to the gas tank valve through conduit, the other end of the gas-supply parallel unit pipe is connected to the gas-supply main conduit; control signals export from the ECM are input to every solenoid valve with check valve; the reset pressure sensor is installed on the gas conduit between the solenoid valve with check valve and the gas tank valve with pressure relief device, and its output is input to the ECM; the high pressure sensor is installed on the gas-supply main conduit after the gas-supply parallel unit pipe, and its output is input to the ECM, then the ECM opens the solenoid valves with check valve in sequence according to the output of the high pressure sensor, so the gas tanks supply gas in sequence until gas-supply in the last gas tank is over; at the same time, according to the output of the reset pressure sensor, the ECM automatically resets and stores the number of the gas tank which is supplying gas, so that when the system is power up, gas-supply begins from said gas tank.