大型制冷机组的冲洗与调试

大型制冷机组部件众多，管路比较复杂，又是必须承受高压的容器，安装、调试都有严格的要求。以30HXC165A制冷机组的现场冲洗、调试为例，详细介绍了大型制冷机组在试运行之前标准的准备工作。这些工作包括吹扫、试压、排污、充注制冷剂和冲洗调试等全部过程及注意事项。本文为大型螺杆式制冷机组这种压力容器设备的运行和维护管理提供了工程实践经验。结果表明：在施工调试过程中，只有各方互相协调，并且严格按照相关文件和规范要求才能顺利完成制冷机组的安装调试，为以后的正常运行打下基础。 <hr /> Strict requirements must be met during the installation and commissioning program for the large-scale chiller units since it has multitudinous components and complicated pipelines with high-pressure vessels. Preparation program was present in detail for large-scale chiller units before commissioning as the example of 30HXC165A chiller units. The total arrangement was considered about chiller units in terms of blowing, pressure trial, drainage, refrigerant filling, flushing and commissioning. The paper also provides the operation and maintenance engineering experience for large-scale screw chiller units. The results indicate that installation and commissioning can be achieved only strict abidance the related regulations demand based on harmony of all engineering participants （owners, engineering, providers etc.）. Furthermore, favorable installation and commissioning work can provide the reliable foundation of normal operation.