用于阻挡加压气体通过管道的先导操作型阻挡装置，以及用于该阻挡装置的压力调节器
By integrating a differential pressure selection device and a pressure regulator, the safety and wear issues of pilot-operated blocking devices when the pressure is unbalanced are solved, ensuring that the device does not start before the pressure is balanced, protecting downstream equipment and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PIETRO FIORENTINI SPA
- Filing Date
- 2021-10-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing pilot-operated blocking devices may cause manual reset of the shut-off valve when the upstream and downstream pressures are not balanced within a safe range, leading to downstream water hammer events and premature wear of the spool valve components.
The pressure regulator, which integrates a differential pressure selection device and a pressure reducer, controls the actuation of the fluid power actuator by detecting the pressure difference between the upstream and supply pressures. This ensures that the shut-off valve only opens when the upstream and downstream pressures are balanced, protecting downstream components and reducing wear on the spool valve components.
This technology prevents the shut-off valve from opening before the upstream and downstream pressures are balanced, thus avoiding downstream water hammer events, extending the service life of the device, and reducing wear on the spool valve components.
Smart Images
Figure CN116507987B_ABST