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首页> 外文会议>ASME(American Society of Mechanical Engineers) Pressure Vessels and Piping Conference vol.2: Computer Technology; 20050717-21; Denver,CO(US) >TIGHTNESS CHARACTERISTICS OF PACKINGS
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TIGHTNESS CHARACTERISTICS OF PACKINGS

机译：包装的张力特性

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The demands on industry to reduce fugitive emissions are increasing, steadily. On this background it is necessary to improve function and tightness of tightening joints like flanged joints and stuffing box packings. Function and tightness can only be guaranteed if the entire chain of parameters involved is taken into account (design criteria, gasket factors, calculation, mounting procedure). On the field of flanged joints there are standardization projects on the way that address the topics of the new regulatory demands. Only few work is done regarding stuffing box packings, however. Similar to flanged joints a reliable function and tightness of stuffing box packings can only be achieved if the behaviour of the parts (bolts, gland, stuffing box) is known and their interaction is understood. Regarding the behaviour of stuffing box packing materials it is necessary to determine characteristics like deformation capability, relaxation, friction and leak rate. These characteristics have to be used to prove function and tightness. Some attempts to define these characteristic values have already been made; test procedures and test rigs to determine these values have been developed. Parallel to that, gasket manufacturers are developing new packing materials and entire packing sets in order to meet the more stringent requirements on tightness. One of these newly developed products are nonwoven packing sets which should be applicable up to temperatures of 280℃ in the processing and chemical industry. In the paper the most relevant packing material characteristics and the necessary tests to determine these characteristics are reviewed, first. Then the results of extensive tests with new nonwoven packing sets regarding tightness characteristics, friction, wear and gap extrusion are presented.
机译：工业上减少逃逸排放的要求稳步增长。在这种背景下，有必要提高诸如法兰接头和填料函填料之类的紧固接头的功能和密封性。只有考虑到所涉及的整个参数链（设计标准，垫片系数，计算，安装步骤），才能保证功能和密封性。在法兰接头领域，有一些标准化项目正在解决新法规要求的主题。但是，关于填料函包装的工作很少。与法兰接头相似，只有知道零件（螺栓，压盖，填料函）的性能并了解其相互作用，才能实现填料函填料的可靠功能和密封性。关于填料函包装材料的性能，必须确定诸如变形能力，松弛，摩擦和泄漏率等特征。这些特性必须用于证明功能和密封性。已经进行了一些定义这些特征值的尝试。已经开发出确定这些值的测试程序和测试台。同时，垫圈制造商正在开发新的包装材料和整套包装，以满足对密封性的更严格要求。这些新开发的产品之一是无纺布包装套件，在加工和化学工业中应适用于最高280℃的温度。在本文中，首先回顾了最相关的包装材料特性以及确定这些特性的必要测试。然后介绍了使用新型非织造填料套件进行的紧密度特性，摩擦，磨损和间隙挤出的广泛测试结果。

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