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根据附件机匣方案设计及多方案筛选过程中对热平衡温度的计算需求,提出工作状态下附件机匣生热及散热过程的热系统模型,及附件机匣热平衡温度的迭代计算方法,根据回油口润滑油温度的变化分析影响附件机匣热平衡温度的主要因素。分析结果表明,附件机匣的热平衡温度随滑油供油量的增加而降低,随滑油供油温度的升高而升高,随二股气流温度的升高而升高,随二股气流流速的升高而降低。从而,对附件机匣热平衡温度的工作机理、影响因素进行系统性的分析。该研究工作对提升附加机匣的设计水平、降低相关故障率具有重要的指导意义。
According to the design of accessory casing design and the calculation of heat balance temperature in multi-scheme screening process, the thermal system model of attachment casing heat dissipation and cooling process under working condition and the iterative calculation method of thermal equilibrium temperature of attachment casing are put forward. Changes in the temperature of the mouth lubricant The main factors that affect the thermal equilibrium temperature of the attachment receiver are analyzed. The results show that the heat balance temperature of the accessory casing decreases with the increase of the lubricating oil supply, increases with the increase of the lubricating oil supply temperature, increases with the increase of the second gas temperature, Increase and decrease. Therefore, the working mechanism and influencing factors of the heat balance temperature of the accessory casing are systematically analyzed. The research work is of great significance in improving the design level of the additional receiver and reducing the related failure rate.