摘要
从检验要求、机构设计及夹紧力分析等方面,阐述了高压软管耐压与气密性能试验台的设计过程,为了保证在多种通径软管接头的情况下,试验时不发生泄漏现象,在夹具的夹紧端面采用多圈同心圆矩形沟槽密封,以压入式液压自动夹紧方式取代手动法兰连接方式,并对液压夹紧力进行计算与分析,得出在软管最大通径100mm时,所需液压夹紧力最大,液压缸所需提供的最小工作压力约为13.4MPa。试验结果表明:与现有法兰连接方式相比,在规定试验压力下,该试验台装置无泄漏现象,自动化程度高,软管平均检验效率提高约49.4%。
Starting with analyzing the inspection requirements,mechanism design and clamping force,both design and construction process of the testbed for high pressure hose’s pressure resistance and air tightness performance were expounded. For purpose of eradicating the leakage which occurred in the test where various diameter hose joints exist,having the clamping end face of the clamp sealed with a multi-circle concentric rectangular groove was designed. Calculating and analyzing the hydraulic clamping force showed that,for the hose’s maximum diameter of 100 mm,the required hydraulic clamping force is the largest and the minimum working pressure of hydraulic cylinder is about 13.4 MPa. The test results showed that,compared with the existing flange connection method,the testbed has no leakage at a specified test pressure along with high degree of automation and the hose’s average inspection efficiency can be increased by about 49.4%.
作者
李超
朱海清
刘明亮
LI Chao;ZHU Hai-qing;LIU Ming-liang(College of Mechanical Engineering,Jiangnan University)
出处
《化工机械》
CAS
2020年第3期302-305,310,共5页
Chemical Engineering & Machinery
关键词
高压软管
试验台
夹紧装置
耐压与气密
high pressure hose
testbed
clamping device
pressure resistance and air tightness
