中温高黏度介质双端面主密封热力特性分析
发布时间：2018-11-01 20:06
【摘要】：为研究中温高黏度介质双端面机械密封主密封的传热和变形规律以及冲洗液的压力和温度对其影响,从而为密封性能改进和冲洗液的高效控制提供依据.以乳液输送设备双端面机械密封(AR201)为研究对象,建立传热计算模型,采用有限元法分析主密封温度场,研究了密封环温度和变形量随冲洗液压力和温度的变化规律.研究表明:密封环端面的最高温处于动静环接触面靠近密封腔位置处,在冲洗液的作用下,动静环内径侧温度明显低于外径侧,动静环温度自接触面开始沿轴向至环外侧逐渐降低;端面最高温度和最大变形量随冲洗液温度和压力的升高而增大,最大变形量的大小和随冲洗液参数变化的波动幅度与密封材料有关;合理选择冲洗液压力和温度是有效改善主密封性能的措施,对于AR201机械密封,将冲洗液压力控制在0.80~0.85 MPa和较低的温度能减少端面磨损现象.
[Abstract]:In order to study the heat transfer and deformation of the main seal with medium temperature and high viscosity, and the influence of the pressure and temperature of the flushing fluid on the seal, this paper provides the basis for the improvement of sealing performance and the efficient control of the flushing fluid. A heat transfer calculation model was established for the double end mechanical seal (AR201) of emulsion conveying equipment. The temperature field of the main seal was analyzed by finite element method. The variation of the temperature and deformation of the seal ring with the flushing fluid pressure and temperature was studied. The results show that the maximum temperature of the end surface of the seal ring is near the position of the seal cavity, and the temperature of the inner diameter side of the ring is obviously lower than that of the outer diameter side under the action of the flushing fluid. The temperature of the static and static ring decreases gradually from the axial direction to the outer side of the ring. The maximum temperature and maximum deformation of the end face increase with the increase of the temperature and pressure of the flushing fluid, and the magnitude of the maximum deformation and the fluctuation range with the parameters of the flushing fluid are related to the sealing material. Reasonable selection of flushing fluid pressure and temperature is an effective measure to improve the performance of main seal. For AR201 mechanical seal, the pressure of flushing fluid can be controlled at 0.80 MPa and 0.85 MPa and lower temperature can reduce the wear phenomenon of the end face.
【作者单位】： 江苏大学能源与动力工程学院;
【基金】：国家自然科学基金资助项目(51279067)
【分类号】：TH136
本文编号：2304958
[Abstract]:In order to study the heat transfer and deformation of the main seal with medium temperature and high viscosity, and the influence of the pressure and temperature of the flushing fluid on the seal, this paper provides the basis for the improvement of sealing performance and the efficient control of the flushing fluid. A heat transfer calculation model was established for the double end mechanical seal (AR201) of emulsion conveying equipment. The temperature field of the main seal was analyzed by finite element method. The variation of the temperature and deformation of the seal ring with the flushing fluid pressure and temperature was studied. The results show that the maximum temperature of the end surface of the seal ring is near the position of the seal cavity, and the temperature of the inner diameter side of the ring is obviously lower than that of the outer diameter side under the action of the flushing fluid. The temperature of the static and static ring decreases gradually from the axial direction to the outer side of the ring. The maximum temperature and maximum deformation of the end face increase with the increase of the temperature and pressure of the flushing fluid, and the magnitude of the maximum deformation and the fluctuation range with the parameters of the flushing fluid are related to the sealing material. Reasonable selection of flushing fluid pressure and temperature is an effective measure to improve the performance of main seal. For AR201 mechanical seal, the pressure of flushing fluid can be controlled at 0.80 MPa and 0.85 MPa and lower temperature can reduce the wear phenomenon of the end face.
【作者单位】： 江苏大学能源与动力工程学院;
【基金】：国家自然科学基金资助项目(51279067)
【分类号】：TH136
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，本文编号：2304958
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