| abstract |
The invention discloses an industrial gas safe and intelligent gas supply device with filling and metering functions, which comprises a storage tank and a control system, wherein the bottom of the storage tank is connected with a filling port through a first pipeline, a first valve, a filling pump, a first pressure gauge and a second valve are sequentially arranged on the first pipeline from the storage tank to the filling port, a low-temperature metering device is arranged on the filling port, the low-temperature metering device comprises an automatic switching valve, a low-temperature flow meter and an electromagnetic valve which are arranged on the filling port, and the filling pump, the first pressure gauge, the automatic switching valve, the low-temperature flow meter and the electromagnetic valve are electrically connected with the control system. |