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差速浮动式传输密封是一种新型的密封装置,在制浆造纸机械设备中有较为广泛的应用。通过热平衡分析和模型简化,建立了差速浮动式传输密封二维稳态柱坐标下无内热源的固体导热微分方程;并应用ANSYS软件建立差速浮动式传输密封动、静环温度场有限元分析模型,对密封环温度场进行求解,获得了动、静环的温度分布规律。分析结果表明:动、静环在两个密封端面处均产生高温,且具有较大的温度梯度,动、静环最高温度都出现在密封面II处;且动、静环的温度及梯度变化在规定范围内,密封的结构设计合理。
Differential floating transmission seal is a new type of sealing device in the pulp and paper machinery and equipment has a more extensive application. Based on thermal equilibrium analysis and model simplification, the differential thermal conduction differential equation with no internal heat source under differential floating transmission and sealed two-dimensional steady-state cylindrical coordinates was established. ANSYS software was used to establish the finite element By analyzing the model, the temperature field of the seal ring is solved and the temperature distribution of the moving and stationary rings is obtained. The results show that the moving and stationary rings both produce high temperature at the two sealing faces and have a large temperature gradient. The maximum temperature of the moving and stationary rings appears at the sealing face II. The temperature and gradient of the moving and stationary rings Within the specified range, the sealed structure design is reasonable.