expander
By designing a multi-stage compression structure and optimizing gas flow in the expander, the problem of low energy recovery efficiency under large enthalpy drop conditions was solved, achieving efficient energy utilization and balanced bearing stress, thus improving equipment performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA ENERGY INVESTMENT CORP LTD
- Filing Date
- 2025-01-17
- Publication Date
- 2026-07-17
AI Technical Summary
Under conditions of large expansion ratio and large enthalpy drop, or when energy recovery is required, the existing expander has a large flow demand at the compression end and a limited compression ratio, resulting in low energy recovery efficiency and uneven bearing stress.
Design an expander comprising a first compression end, a second compression end, and an expansion end. The expansion working fluid drives the bearing and the compression end to rotate synchronously, achieving multi-stage gas compression. The shaft work of the expansion end drives the compression end, reducing gas demand. Furthermore, the gas flow and heat exchange are optimized through a gas distribution chamber and a heat insulation block, improving the compression ratio and energy quality.
It improves the gas compression ratio and energy quality, reduces the gas consumption at the compression end, balances the stress on the bearings, extends equipment life, and improves efficiency.
Smart Images
Figure CN122407302A_ABST