Symmetrical grid valve for steam extraction
DE602022026641T2Active Publication Date: 2025-12-10NUOVO PIGNONE TECH SRL
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Patent Information
- Application Number
- DE602022026641
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-08-27
- Filing Date
- 2022-08-23
- Publication Date
- 2025-12-10
- Estimated Expiration
- 2042-08-23
AI Technical Summary
Technical Problem
Existing extraction valves in steam turbines are limited by pressure differences of up to 10-15 bar, leading to frictional issues and wear, limiting the ability to extract steam at higher pressures.
Method used
A balanced grid valve with two balancing chambers at different radial distances from the central axis, receiving high-pressure steam to counteract axial forces and reduce friction, allowing extraction up to 60 bar.
Benefits of technology
Facilitates steam extraction at higher pressures with reduced wear and improved movement between open and closed positions, enhancing turbine efficiency and component longevity.
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