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液压系统在开始工作后,油温是从起始温度逐渐升高到平衡温度,存在着一个从起始温度到平衡温度的过渡过程。本文导出了液压系统温升的过渡过程方程式,并根据这一方程式提出了一种设计散热器的新方法。目前液压系统的散热器设计,都是按发热量与散热量达到平衡,系统温度达到平衡温度来设计的,但若系统连续工作时间不太长,油温达不到平衡温度,如仍按平衡温度的要求来设计散热器,则必然大于要求,造成浪费。如果掌握系统温升的过渡过程,就可以较合理较经济地确定散热面积。我们在进行液压倒装组塔设备的设计中就碰到了这样的问题。
Hydraulic system starts working, the oil temperature is gradually increased from the initial temperature to the equilibrium temperature, there is a transition from the initial temperature to the equilibrium temperature. In this paper, the transition process equation of temperature rise of hydraulic system is deduced. Based on this equation, a new method of designing heat sink is proposed. At present, the design of the radiator of the hydraulic system is based on the balance between heat and heat and the system temperature reaches the equilibrium temperature. However, if the system does not work continuously for a long time and the oil temperature does not reach the equilibrium temperature, Temperature requirements to design the radiator, it must be greater than the requirements, resulting in waste. If you master the transition process of system temperature, you can more reasonable and more economical to determine the cooling area. We encountered this problem in the design of hydraulic flip tower equipment.