The cause of overheating of the HT reheater of No. 4 boiler of jingmen Thermal power plant was analyzed.The measure to reduce the overheating degree was put forward and good effect was achieved.

• 摘要分析了荆门热电厂4号炉高温再热器超温的原因，提出了减缓超温程度的措施，并取得了较好的成效。