In the field of industrial refrigeration, system operating temperatures are typically low, and high energy efficiency and stability are required. Therefore, the selection of insulation materials directly affects equipment operating efficiency and energy consumption levels. Rubber and plastic insulation materials, due to their closed-cell structure, good moisture resistance, and convenient construction, have become a widely used type of insulation material in industrial refrigeration systems, playing a vital role in freezing and refrigeration, food processing, pharmaceutical cold chain, and low-temperature chemical processes.

Firstly, the core role of rubber and plastic materials in industrial refrigeration systems lies in thermal insulation and energy saving. Rubber and plastic are flexible closed-cell foam materials, forming a large number of independent air bubbles within, which effectively block heat transfer paths, reduce thermal conductivity, and thus reduce cold loss. During the operation of low-temperature pipelines and equipment, a high-quality rubber and plastic insulation layer can significantly reduce system energy consumption, improve refrigeration efficiency, and effectively save energy costs in the long run.

Secondly, preventing condensation is another important function of rubber and plastic materials. Industrial refrigeration systems often operate in environments with large temperature differences. If the insulation performance is insufficient or the moisture resistance is poor, condensation can easily form on the pipe surface, affecting equipment operation and potentially causing corrosion risks. Rubber and plastic materials possess excellent water vapor barrier properties. Their closed-cell structure effectively reduces water vapor permeability, thereby minimizing condensation and ensuring safe and stable system operation.

Regarding system safety, rubber and plastic materials also offer shock absorption and cushioning. Industrial refrigeration equipment generates vibrations during operation; the flexible rubber and plastic structure can absorb some mechanical stress, reducing the risk of insulation layer cracking or detachment and improving overall system reliability. Simultaneously, the material's softness and flexibility allow for close fitting of valves, elbows, and complex equipment structures, reducing cold bridges and improving overall insulation integrity.

Construction efficiency is another key reason for the widespread application of rubber and plastic materials in industrial refrigeration. Rubber and plastic sheets and pipes typically offer good cutability and ease of installation, allowing for rapid construction based on equipment dimensions, shortening project cycles, and reducing labor costs. During maintenance, repairs or replacement of partial insulation layers are relatively convenient, facilitating long-term operation and management.

From a long-term operational stability perspective, high-quality rubber and plastic materials maintain stable physical properties within a reasonable temperature range, resisting pulverization, cracking, or significant performance degradation. With proper construction and sealing, it can meet the operational needs of industrial refrigeration systems for many years, reducing maintenance frequency.

Overall, the role of rubber and plastic in industrial refrigeration systems is mainly reflected in energy saving and insulation, prevention of condensation, improved operational safety, reduced maintenance costs, and increased construction efficiency. As industrial energy conservation requirements continue to rise, the application value of rubber and plastic insulation materials in refrigeration engineering will continue to increase, playing a crucial role in achieving efficient and stable system operation.