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建立数学模型并进行分析,得到真空仓压力及漏率随时间变化的公式,对公式中参数的工程意义进行讨论;结合粮食真空干燥的实践制定可操作的检漏程序,简述常用的几种检漏方法及注意事项。
The mathematic model is established and analyzed. The formula of pressure and leakage rate change with time in vacuum chamber is obtained, and the engineering significance of the parameters in the formula is discussed. An operational leak detection program is developed according to the practice of grain vacuum drying. Leak detection methods and precautions.