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低温调节阀阀座软密封特性研究(Ⅰ):常温密封性能

DOI: 10.15918/j.tbit1001-0645.2015.05.001

Keywords: 低温阀 阀座 软密封 漏率 聚合物材料

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Abstract:

分别采用高分子聚合物PTFE、PCTFE和PEEK作为低温调节阀阀座软密封的密封材料,在常温(300 K)情况下,对比研究了采用不同密封材料的低温阀阀座的漏率与密封比压的关系. 在此基础上,测试了不同进口压力下阀座的密封漏率,以及密封性能对压力的稳定性. 试验分析结果表明,采用PCTFE密封材料的低温阀阀座不仅具有优异的密封性能,而且在不同的工作压力条件下,漏率与压力呈线性变化,具有较高的压力稳定性

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