Devices and methods for controlling pressure of high-temperature and high-pressure reactors

1. A device for controlling pressure of a high-temperature and high-pressure reactor, comprising an automatic pressurizing unit, a manual pressurizing unit, a temperature boosting and pressure boosting control unit, and a temperature and pressure control panel, wherein

a first valve, a first pressure gauge, a second valve, and a second pressure gauge are successively disposed between the automatic pressurizing unit and the manual pressurizing unit;

a pipeline where the temperature boosting and pressure boosting control unit is located is connected between the first pressure gauge and the second valve by a tee, and the pipeline is successively provided with a first pressure relief valve, a third pressure gauge, and a main valve, the main valve being equipped with a first pressure sensor; and

the temperature and pressure control panel is connected to the automatic pressurizing unit, the manual pressurizing unit, and the temperature boosting and pressure boosting control unit by a wire.

2. The device for controlling pressure of the high-temperature and high-pressure reactor of claim 1 , wherein the automatic pressurizing unit includes an air compressor, a pressure pump, and a first water tank, the first water tank being disposed between the air compressor and the pressure pump.

3. The device for controlling pressure of the high-temperature and high-pressure reactor of claim 2 , wherein the manual pressurizing unit includes a hand pressure pump, a hand crank pump, and a second water tank;

the hand pressure pump and the hand crank pump are connected in parallel;

the hand pressure pump and the second water tank are connected in series, and a third valve is disposed between the hand pressure pump and the second water tank; and

the hand crank pump and the second water tank are connected in series, and a fourth valve is disposed between the hand crank pump and the second water tank.

4. The device for controlling pressure of the high-temperature and high-pressure reactor of claim 3 , wherein the temperature boosting and pressure boosting control unit includes a plurality of groups of temperature boosting and pressure boosting control devices, and each group of temperature boosting and pressure boosting control devices is connected in parallel; wherein

a first temperature boosting and pressure boosting control device includes a first annular furnace, a first autoclave, and a fifth valve that are connected successively, the fifth valve being equipped with a second pressure sensor.

5. The device for controlling pressure of the high-temperature and high-pressure reactor of claim 1 , wherein the tee is disposed between the second valve and the second pressure gauge, and a second pressure relief valve is connected to a second water tank via the tee.

6. The device for controlling pressure of the high-temperature and high-pressure reactor of claim 1 , wherein the temperature and pressure control panel includes a display device configured to display monitored pressure and temperature data.

7. A method for controlling pressure of a high-temperature and high-pressure reactor, executed by a device for controlling pressure of the high-temperature and high-pressure reactor, wherein the device comprises an automatic pressurizing unit, a manual pressurizing unit, a temperature boosting and pressure boosting control unit, and a temperature and pressure control panel, wherein

a first valve, a first pressure gauge, a second valve, and a second pressure gauge are successively disposed between the automatic pressurizing unit and the manual pressurizing unit;

a pipeline where the temperature boosting and pressure boosting control unit is located is connected between the first pressure gauge and the second valve by a tee, and the pipeline is successively provided with a first pressure relief valve, a third pressure gauge, and a main valve, the main valve being equipped with a first pressure sensor; and

the temperature and pressure control panel is connected to the automatic pressurizing unit, the manual pressurizing unit, and the temperature boosting and pressure boosting control unit by a wire;

the method comprising:

initially pressurizing the device, including pressurizing the device automatically or manually;

controlling pressure of the device by pressurizing the device manually during a temperature boosting process;

monitoring pressure during a temperature boosting and pressure control process and an experimental process;

recording and exporting pressure sensor data; and

repeating above operations to control and monitor pressure of an initial pressurization process, the temperature boosting and pressure control process, the experimental process, and a quenching experiment process.