在各种受压容器及设备中,安全阀的可靠性关系到整个设备与运行人员的安全,尤其近来超监界高压高温蒸汽动力设备的发展,故对安全阀更提出日益严格的要求。鉴于目前有关这方面的技术文献较为贫乏,本文拟就安全阀的作用过程以及易于漏汽和回座压力过低等两大通病作一理论分析,并从根本上寻求解决的途径。一、易于漏汽的原因分析一般认为,主要是由于密封面的质量所引起。 In a variety of pressure vessels and equipment, safety valve reliability related to the safety of the entire equipment and operations personnel, especially in recent super-high pressure high temperature steam power equipment development, so the safety valve is more and more stringent requirements. In view of the current lack of technical literature in this area, this paper intends to make a theoretical analysis of the role of safety valve and the two common problems of easy leakage and back seat pressure is too low, and from the fundamental to find a solution. First, easy to leak the reason Analysis Generally believed that, mainly due to the quality of the sealing surface caused.