石油、石化和天然气工业.轴向、离心和旋转螺杆压缩机和膨胀机用干气密封系统

[中文适用范围]： 本文件适用于 ISO 10439（所有部分）、ISO 10440-1 和 ISO 10440-2 中所述的轴流式、离心式和旋转螺杆压缩机和膨胀机的干气密封系统。 虽然主要用于炼油厂，但它也适用于石化设施、天然气厂、液化天然气 (LNG) 设施以及石油和天然气生产设施。 所提供的信息旨在帮助选择最适合各种安装所涉及的风险和环境的系统。 本文件不适用于其他类型的轴密封，例如间隙密封、限流环密封或油封。 本文件是 API Std 692 第 1 版（2018 年）的补充，除本文件中规定的例外情况外，其要求均适用。 [外文原描述]： This document is applicable to dry gas sealing systems for axial, centrifugal, and rotary screw compressors and expanders as described in ISO 10439 (all parts), ISO 10440-1 and ISO 10440-2. Although intended for use primarily in oil refineries, it is also applicable to petrochemical facilities, gas plants, liquefied natural gas (LNG) facilities and oil and gas production facilities. The information provided is designed to aid in the selection of the system that is most appropriate for the risks and circumstances involved in various installations. This document does not apply to other types of shaft seals such as clearance seals, restrictive ring seals or oil seals. This document is a supplement to API Std 692, 1 st edition (2018), the requirements of which are applicable with the exceptions specified in this document.