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对中国石油化工企业部分设备及管道保冷状况进行了系统调查、测试及研究，总结出保冷工程中普遍存在的问题，并提出保冷工程的研究方向。经调查，发现许多人没有认识到“保冷”与“保温”的本质区别在于保冷绝热体中存在水蒸汽的渗透；保冷设计中普遍存在保冷层们薄。保冷结构中防潮、隔汽层大多不完整、甚至不设置隔汽层。没有正确使用具合结构；选材不合理；拖工质量得不到保证；保冷工程管理混乱等问题。致使保冷结构的使用寿命只有３ａ左右，造成了能源的大量浪费。提出，保冷工程中必须提高认识、加强管理、用心组织施工。同时，应建立材料水蒸汽渗透率及低温导热系数曲线测试方法及测试装置，测定保冷材料的水蒸汽渗透率及低温导热系数曲线。为保冷结构设计、选材提供必要的依据，并研究高效、经济、耐久的保冷结构。
This paper systematically investigated, tested and researched some equipment and piping cold-protection conditions of Chinese petrochemical enterprises, summarized the problems commonly existing in cold-preservation projects and proposed the research directions of cold-insulation engineering. After investigation, many people did not realize that the essential difference between “keep warm” and “keep warm” is the penetration of water vapor in the cold-keeping thermal insulator; Insulation in the moisture-proof structure, most of the vapor barrier is not complete, and even do not set the vapor barrier. Not properly used with the structure; material is not reasonable; towing quality can not be guaranteed; cold engineering management chaos and other issues. Resulting in the service life of the cold-proof structure is only about 3a, resulting in a lot of energy waste. It is suggested that in the cold preservation project, we must raise our awareness, strengthen management, and carefully construct the construction. At the same time, material water vapor permeability and low temperature thermal conductivity curve test methods and test equipment should be established to measure the water vapor permeability and low temperature thermal conductivity curve of the cold-proofing material. For cold-proof structure design, material selection to provide the necessary basis, and research efficient, economical, durable cold-proof structure.