The 80 MPa deep-sea environmental simulation equipment is a custom-developed integrated simulation system that combines hardware setup with software control to monitor coupled variations of simulated deep-sea pressure, dissolved oxygen, pH value, and temperature. This system provides a highly realistic deep-sea environment for equipment testing and validation.
Key operational approaches include pump-valve switching, gas regulation, acid-base solution mixing, and temperature adjustment within the pressure vessel.
The complete system consists of five integrated subsystems:
| Parameter | Specification |
|---|---|
| Maximum Working Pressure | 80 MPa |
| Control Accuracy | ±0.1 MPa |
| Maximum Pressure Rise Rate | 10 MPa/min |
| Operation | Real-time pressure monitoring via sensors, PLC data processing, and pressure/flow adjustment through frequency converter-controlled booster pump |
| Parameter | Specification |
|---|---|
| Regulation Range | 8-15 mg/L |
| Control Accuracy | ±1 mg/L |
| Operation | Real-time monitoring via dissolved oxygen sensors; oxygen increase through bubble generator; oxygen reduction via sodium sulfite addition |
| Parameter | Specification |
|---|---|
| Regulation Range | 6-10 |
| Control Accuracy | ±1 |
| Operation | Real-time monitoring via pH sensor; pH increase using 0.1 mol/L sodium hydroxide solution; pH reduction using 0.1 mol/L sulfuric acid solution |
| Parameter | Specification |
|---|---|
| Regulation Range | 10-30 ℃ |
| Control Accuracy | ±3 ℃ |
| Operation | Real-time monitoring via temperature sensors, PLC processing, and temperature control through integrated high/low temperature machine |