用于二次再热机组、全负荷可调背压机组供热系统及方法
By adjusting the reheater steam flow and temperature of the secondary reheat unit, combined with the main steam valve control of the high and low pressure turbines, the system instability and heating instability of the secondary reheat unit under load changes have been solved, achieving stable heating across the entire load range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HENNAN ELECTRIC POWER SURVEY & DESIGN INST CO LTD
- Filing Date
- 2023-12-25
- Publication Date
- 2026-07-17
AI Technical Summary
When the operating load of existing double reheat units changes, the inlet and outlet pressures of the first and second reheaters change, affecting system stability and causing unstable heating load.
Design a full-load adjustable back-pressure unit heating system for a secondary reheat unit. By adjusting the steam flow and temperature of each stage of the reheater, combined with the main steam valve control of the high-pressure and low-pressure turbines, the system achieves matching of steam pressure and temperature, ensuring the stability and flexibility of the heating system.
Stable heating was achieved across the full load range of the reheat unit, improving the system's operational stability and heating capacity, and avoiding the problems of reduced efficiency and unstable heating under traditional heating methods.
Smart Images
Figure CN117823982B_ABST