A multi-stage energy cascade utilization system and method based on superheater steam extraction
By adopting multi-stage energy cascade utilization technology based on superheater steam extraction in thermal power generation systems, the problems of low energy utilization efficiency and high coal consumption in traditional thermal power generation are solved, and efficient multi-stage cascade utilization is achieved, improving the flexibility and comprehensive thermal efficiency of the system.
Patent Information
- Application Number
- CN202411968872.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-04-04
AI Technical Summary
The energy utilization efficiency of traditional thermal power generation is low, especially when the unit is running at low load, resulting in an increase in coal consumption. The existing energy cascade utilization scheme has the problem of insufficient choice of steam source and limited energy utilization stages.
A multi-stage energy cascade utilization system based on superheater steam extraction is adopted. Steam is extracted from the superheater through the superheater steam extraction device and used to heat up the high-pressure heater for water. After the steam releases heat in the heater, it enters the backpressor for work. The exhaust steam of the backpressor is used for industrial steam supply or driving the steam turbine. The exhaust steam of the steam turbine enters the heating system or the heating system to achieve efficient multi-stage cascade utilization of steam energy.
It improves the energy utilization efficiency, economy, equipment operation stability and system flexibility of the unit under different operating conditions, reduces pollutant emissions, and significantly improves the overall thermal efficiency of the entire unit and reduces energy waste.