Coal bunker sub-bunker multi-coal type switching system based on deep peak regulation of thermal power
By combining sound waves and airflow to achieve phase change switching of raw coal materials under deep peak shaving conditions in thermal power plants, the problem of jamming and lag of traditional mechanical valves in high static pressure environments has been solved, improving the operational stability and reliability of multi-coal switching systems and achieving highly sensitive dynamic switching without mechanical lag.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUANENG POWER INT INC
- Filing Date
- 2026-06-05
- Publication Date
- 2026-07-17
AI Technical Summary
Under the deep peak shaving conditions of thermal power plants, traditional mechanical valves and material distribution flaps are prone to physical jamming, mechanical internal leakage, and delayed switching response in the high static pressure and high wear bulk coal flow environment, which leads to a shortened equipment service life and a reduced reliability of multi-coal type switching systems.
The system employs a multi-compartment raw coal silo main body, a critical self-locking discharge throat, a composite inner wall with gradually varying acoustic impedance gradient, a ring-cut micro-nano airflow array, an acoustic-mechanical coupled directional flow array, a piezoelectric acoustic emission sensor array, and a phase change control and topological imaging center. It achieves static cut-off and fluidized feeding phase change switching of raw coal materials by combining sound waves and airflow, eliminating mechanical moving parts and using an acoustic-mechanical coupled directional flow array and a micro-nano airflow array for non-destructive cut-off and switching.
It achieves high-reliability control under high static pressure environment, eliminates the hidden danger of mechanical wear, improves the service life and stability of the multi-coal type frequent switching system, meets the fuel transient cut-off requirements under deep peak shaving conditions, and ensures high sensitivity and real-time sealing of multi-coal type switching.
Smart Images
Figure CN122402976A_ABST