天然气长输管道设计中压缩机与驱动机选型

How to Select the Types of Compressors & Drivers for Design of Long-distance Natural Gas Pipeline

世界天然气工业正在加速发展。在长输天然气管道设计中,压缩机和驱动机的选型是重要内容之一。介绍了世界几家著名公司生产的燃—压机组的特性及技术指标。根据国外天然气管道输送系统压气站的安装生产情况,结合我国目前尚无运行的长输天然气管道中间压气站及现有技术、设备、管理水平,提出选用燃—压机组的原则应是大功率,台数少。指出国产压缩机组存在的主要问题是产品性能不稳定;使用寿命短;能耗高;效率低;现有系列覆盖面窄;不能满足石油工业需要等。对两种不同型式的压缩机、驱动机在技术性能、优缺点及适用范围等方面进行了详细比较,并给出了1995年国外一些大公司生产的燃—压机组技术数据及出厂价格。

The world gas industry is speeding up nowadays. How to select compressors and drivers in design of long-distance gas pipeline is one of the most important contents. The article has introduced the specifica- tions and characters of compressors made by several world well-known companies. In the view of installation and production of compressing stations for natural gas pipeline network abroad, comparing the situation that there is no intermediate compressing station under operation for long distance gas transportation in China, comparing the existing technology, equipment and management level, it suggests that the principle for selecting turbine and compressor combination should be High Power and Less Units. The article has also indicated that the major problem existing in compressing combination made in domestic is unstable in performance, short service life, high energy consumed, low efficient and product serial is so limited that it can not meet the requirement of petroleum industry. The comparison between different type of compressors and drivers in respects of technical function and application is shown clearly. The specification of some products manufactured in 1995 by large foreign companies and prices of these products are also shown in this article.