The visual variable-aperture hydrate simulation testing device is an innovative experimental device specially designed for the study of natural gas hydrates (flammable ice). Through dynamically adjusting the crack width, precisely controlling environmental parameters, and real-time visual monitoring, this device simulates the formation, decomposition, migration, and blockage behavior of hydrates in fractured strata in the seabed or permafrost regions, providing a key experimental platform for basic research and engineering development of natural gas hydrates.

Main Technical Parameters

1. Test Chamber: Inner diameter 70mm, height 0-10mm, pressure resistance 20MPa, visible diameter 25mm;
2. Servo Displacement System: Displacement range 0-10mm, displacement accuracy 0.01mm, stroke measurement accuracy 0.001mm;
3. Low-temperature water bath: -20～40℃, temperature control accuracy ±0.1 ℃, low-temperature fidelity;
4. Simulated pressure: ≤20MPa, control accuracy 0.05MPa, measurement accuracy ±0.1%F.S;
5. Backpressure valve pressure regulating valve: Imported from the USA;
6. Automatic constant pressure pump: Pump body volume 100ml, output pressure 60MPa