1.前言除了特殊结构形式的泵以外,但凡泵上均装有为防止泵内流体从轴贯通部漏到外部的装置——密封装置。泵的最麻烦部分要算密封装置了,因此它是决定泵可靠性的关键所在。近年来泵的大容量化,高压高速化以及高性能、高可靠性的要求越来越把密封装置提高到重要的位置。要求一台高压泵的可靠性远远超过密封元件的可靠性,因此产生了希望把密封装置设计成密封系统来使用的必要性。木文根据这种情况,对有关密封元件的性能特征和密封系统的方案设计拟以具体实例作 1. Introduction In addition to the special structure of the pump, but the pump is equipped with a pump to prevent the fluid from the shaft through the Department of leakage to the outside of the device - sealing device. The most troublesome part of the pump is the seal, so it’s the key to determining pump reliability. In recent years, large-capacity pumps, high-pressure high-speed and high performance, high reliability requirements of the sealing device to an increasingly important position. The need for a high-pressure pump to be far more reliable than the reliability of the sealing element has created the need to design the seal as a sealing system for use. Wood according to this situation, the performance characteristics of the sealing element and the sealing system plan to be designed to take concrete examples