燃調優化技術在發電鍋爐運轉效能改善之發展應用

The development and application of combustion optimization technology in improving the operating efficiency of power generation boilers

10.29911/JEHVACE_NEW.202103_(126).0007

楊泰然；李泰成；王派毅；陳瑞麒；黃森鋼；張烈青；彭進明；簡大舜

序列式優化 ； 燃燒調整 ； 爐膛燃振 ； 鍋爐 ； Sequential Optimization ； Combustion Adjustment ； Furnace Rumbling ； Boiler

冷凍空調&能源科技

126期（2021 / 03 / 10）

69 - 76

繁體中文

協和發電廠鍋爐自民國88年De-NOx工程後，於民國90年7月起在高載運轉時即陸續岀現鍋爐燃燒高振動現象，以協一機的狀況較明顯於負載大於380MW時會發生鍋爐爐膛高燃振狀況（振動峰值超過600μm）。本研究於民國107年度上半年以燃調優化方式進行協一機鍋爐調整與測試，於107年年中完成改善工作後已成功減緩鍋爐爐膛高燃振，並且釐清17年來引起高燃振的主要肇因。經優化燃調後印證於400MW，可穩定運轉使爐膛燃振峰值調降至128μm（約為臨界峰值600μm的22%以內）並且負載仍然有調昇潛力，使原本運轉負載受限問題獲得充份改善後，於107～108年夏季尖峰用電緊繃情境下，該機組已適時減緩電力系統調度壓力；該燃調優化成果可平行推展應用至廠內多部同型鍋爐高燃振問題的防治。

The De-NOx systems at Hsieh-Ho Station were installed and completed in 1999. Since July 2001, severe furnace rumbling has occurred at high loads, especially on Unit 1. The station had provided resources to mitigate the problem but rumbling still occurred at times when the loads were over 380MW. In the first half of 2018 rumbling at high loads was reduced with combustion optimization and the causes of rumbling were identified. A series of combustion adjustments proved that Unit 1 could maintain steady operations at 400MW and the amplitude of furnace rumbling was reduced to 128μm within 22% of the critical values 600μm, and the load can be further increased potentially. After the combustion adjustments Unit 1 released some pressure from the company's power dispatch situation. The results of combustion optimization can be applied in parallel to the prevention of combustion vibration problems of multiple boilers of the same type.

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