木巴来克·都尕买提,王刚,王琪,美合日阿依·穆太力普

• 1:新疆大学电气工程学院

摘要(Abstract)：

针对机组四分仓空气预热器（空预器）漏风过大的问题，以某电厂1 000 MW机组的四分仓回转式空预器为研究对象，通过理论分析和数值模拟相结合，对空预器热力特性、转子热变形以及漏风等问题进行研究。数值模拟结果表明：1 000 MW机组漏风率每增加1%，空预器换热效率降低1.13%，电厂年平均多消耗3 604 t标准煤；空预器内部在轴向和周向上有较大的温度梯度，而腐蚀和沉积区域大部分分布在低温段；空预器在不同工况运行时转子热变形存在较大的差异，最大热变形都发生在二次风侧，在设置密封系统时需根据转子不同位置热变形特点做出相应调整。

关键词(KeyWords)： 四分仓回转式空气预热器;热力特性;转子热变形;漏风控制;数值模拟

Abstract:

Keywords:

基金项目(Foundation): 新疆维吾尔自治区“天池”博士计划（TCBS202006）;; 新疆维吾尔自治区自然科学基金青年基金资助项目（2021D01C089）;; 新疆维吾尔自治区重点研发资助项目（2022B01033-2）;; 中央引导地方科技发展专项资助项目（ZYYD2022C16）~~

作者(Author): 木巴来克·都尕买提,王刚,王琪,美合日阿依·穆太力普

DOI: 10.19666/j.rlfd.202305078

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