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1·Discussion is carried out on the selection of anti_surge control and the determination of anti_surge line of ammonia compressor, and ensure its reliability in producing.

就氨压缩机防喘振控制方案的选用、防喘振线的确定进行了探讨，并在生产中证明是可靠的。

2·The deficiency of the mechanical seal of ammonia compressor was presented, and the way, the feasibility and the economical efficiency of the gas seal reform were discussed.

对氨压缩机密封存在的问题进行了分析，提出了改进意见，并对现场实施改造的可行性、经济性进行了探讨。

3·The ammonia compressor is core equipment in the ammonia purification system. Its operation situation directly decides if the system is safely operated in longer work-up period.

氨压机是氮精制系统的核心设备，其运行工况的优劣直接决定着整个系统能否长周期安全运行。

4·Therefore, it is to shut down axial fan conveyor motor and turn off power after finished products with freeze, as well as notify the operator at ammonia compressor and keep telephone records.

货将冻结完毕，关闭轴流风机及传送电机，切断电源。通知氨压缩机操作人员，并做好电话记录。

5·This paper explains the analysis course and the treatment measure for high vibration at the entry of low pressure cylinder of synthetic ammonia compressor in Liaohe Chemical Fertilizer Factory.

本文叙述了辽河化肥厂合成气压缩机低压缸入口处振值居高不下的分析过程及处理手段。

6·By means of analysis on the factors affected the long period operation of ammonia compressor, the reason was found. The technical transform was conducted. The long period operation was realized.

通过对影响氨压缩机长周期运行的因素进行分析，找出原因，进行技术改造，实现了长周期运行。

7·Centrifugal compressor compression ammonia or syngas (often contains large amounts of ammonia), the system must be kept dry, as to reduce oil and transport gas contact.

采用离心压缩机压缩氨或合成气(常含大量氨)时，系统必须保持干燥，尽可能减少油与输送气接触。

8·The design of the main tasks are: identification ammonia Section cycle centrifugal compressor structure, the main structure size, and identify key zero, parts of the structure and size selection.

本次设计的主要工作包括：确定合成氨工段循环离心压缩机的结构形式、主体结构尺寸，并确定主要零、部件的结构尺寸及其选型。

9·Compressor is one of main equipments in synthetic ammonia system.

压缩机是合成氨系统的关键设备之一。

10·Through the use of highly energy-efficient evaporative condenser, it completes the technological transformation of the refrigeration compressor exhaust cooling system at ammonia cooling system.

通过采用高效节能型蒸发式冷凝器，对氨冷却系统工序中制冷压缩机排气冷却系统进行了技术改造。