减容型氨制冷工艺是安全防范的有效技术手段

Volume-Reduction Ammonia Refrgeratory---An Effective and Safe Technology

国内现行氨制冷工艺，系统繁杂，容器、管道及冷排管内容积大，充氨量必定随之加大，轻易成为“重大危险源”。而发达国家早己针对性地进行技术改革，减（简）容型制冷工艺乃措施之一，值得借鉴。

The current ammonia refrigeratory technology is complicated with large volume of cooling pipe so that ammonia should be added anytime in accordance to the volume, which is the cause of the severe accidents. Comparatively speaking, developed countries have already taken actions to reform the technology, among which volume-reduction refrigeratory is one that is worth learning in China.