DN2600碟阀液压系统设计.docVIP

PAGE 辽宁科技大学本科生毕业设计 第 PAGE I页 DN2600碟阀液压系统设计 摘要 随着我国工业经济的发展与需要，碟阀在国民生活中应用越来越广泛。蝶阀不仅在石油、煤气、化工、水处理等一般工业上得到广泛应用，而且还应用于热电站的冷却水系统。30年代，美国发明了碟阀，50年代传入日本，到60年代才在日本普遍采用，而在我国推广则是70年代后的事了。碟阀一般有采用电器动力和液压动力的，电器应用的教早，而且大多用在较小的碟阀上。当负载较大时，电器驱动已不能满足使用的需要，所以要采用输出功率较大的动力驱动，而液压驱动正好能满足这方面的需要，这样液压碟阀就被广泛应用在工业生产上。 在控制液体或气体通断中，闸阀与碟阀都被应用其中。但相对闸阀而言碟阀有开闭时间短，操作力矩小，安装空间小和重量轻等特点。所以碟阀正逐步取代闸阀在工业生产中的位置。液压碟阀主要应用在负载较大的工作场合，阀门的直径相对也较大。碟阀的机械结构较简单，主要为阀门、机械臂和驱动机构。 液压部分的设计主要在于液压缸负载力的确定。在通过简单的力分析后，可以计算出两个液压缸的最大负载力。然后，确定液压执行机构和其它元件。通过合理的选件与布局，设计出合理的碟阀系统的液压站部分。 关键词：碟阀；液压；应用；液压站 辽宁科技大学本科生毕业设计 第II页 Abstract Along with our country industry economys development and the need, the disc valve applies in the national life is getting more and more widespread. The disc valve not only in the petroleum, the coal gas, the chemical industry, the water treatment and so on the general industry obtains the widespread application, moreover also applies in the heating and power station cooling aqueous system. In the 30s, the US has invented the disc valve, in the 50s spreads to Japan, only then generally uses to the 60s in Japan, but promoted after our country is the 70ss matter. The disc valve has generally uses the electric appliance power and the hydraulic pressure power, the electric appliance application teaches early, moreover mostly uses on the disc valve. When the load is big, the electric appliance actuates not to be able to satisfy the use the need, must therefore use the output big power drive, but the hydraulic pressure actuation happen to can satisfy this aspect the need, such hydraulic pressure small dish valve widely is applied in the industrial production. In the control liquid or the gas make-and-break, which the gate valve and the disc valve is applied in . But the relative gate valve says the disc valve to have the make and break time to be short, the operation moment of force is small, the installm