Figure 1.
Schematic diagram of a methane diffusion experimental platform under high temperature and high pressure. 1: Gas cylinder of CH4; 2: air compressor; 3: gas turbocharged pump; 4: high-pressure gas holder; 5: safety valve; 6: buffer tank; 7: vacuum pump; 8: standard room; 9(9′): pressure sensor of reference cylinder; 10(10′): pressure sensor of sample cylinder; 11(11′): reference cylinder; 12(12′): sample cylinder; 13–16: pressure reducing valve; 17–23: precise pressure gauge; 24–38: valve; 39(39′): constant temperature system; 40(40′): vent solenoid valve; 41(41′): pressure sensor; 42(42′): servo motor; 43(43′): liquid storage cup; 44(44′): gas storage tank; 45(45′): drive screw; 46–47(47′): intake solenoid valve; 48: controlling system; and 49: high-precision pressure sensor.