高压大流量安全阀试验装置研究

Research on Experimental Platform of High Pressure and Large Flow Relief Valve

大流量安全阀保护立柱不受高压破坏,是液压支架重要原件之一。为了测试液压支架安全阀的动态特性,设计了一种以蓄能器为动力源的高压大流量安全阀试验装置,介绍了其工作原理,以及测控系统。经试验表明,以蓄能器代替大流量泵,可实现快速加载,为安全阀提供大流量阶跃信号,该试验系统可满足大流量安全阀的动态特性测试要求。

Large flow relief valve is an important part of hydraulic support, which can protect hydraulic support from high pressure damage. To obtain dynamic characteristics of relief valve, a test system of high pressure and large relief valve using a accumulator as a power source is proposed,its operating principle and measurement and control system are also described. Experiment result indicates that accumulator taking replace of large flow hydraulic pump can realize fast loading, and provide step input with large flow for relief valve, and test system satisfies test requirement of dynamic characteristics of large flow relief valve.