In May, the equipment for the refrigeration system installation project of the low-temperature cold storage facilities (Floors 3–6) in Phase I of the Changde Cold Chain Center in Xindu District, Chengdu, Sichuan Province was delivered to the site.

This project constitutes the core supporting infrastructure for Chengdu Xindu's high-rise vertical cold chain system, encompassing the comprehensive installation of refrigeration systems throughout all low-temperature storage areas across floors 3 to 6 of Phase I of the Cold Chain Center.

The project employs a mature and efficient refrigeration technology tailored to the operational requirements of multi-level cold storage facilities, including inter-level liquid supply and high capacity utilization. The entire system features a drum pump-driven forced liquid supply system, addressing issues such as high pipeline resistance in tall buildings and insufficient cooling capacity at remote locations; ensures thorough heat exchange in the evaporator, prevents compressor liquid hammer, and guarantees stable operation. All units within the storage facility utilize ceiling-mounted air coolers that do not occupy storage space while providing uniform airflow and precise temperature control. These air coolers are equipped with fully automatic thermal fluorine defrosting systems that utilize residual heat from compressor exhaust for defrosting, eliminating additional power consumption and minimizing temperature fluctuations during defrosting, thereby enabling off-peak defrosting without compromising continuous cooling performance.

The system is equipped with a low-temperature screw parallel unit, a roof-mounted evaporative condenser, and a PLC-based intelligent automation control system, designed to accommodate Chengdu's high-temperature and high-humidity climate. It enables real-time monitoring of equipment operation and ensures 24-hour unmanned stable operation. The entire solution offers excellent cooling performance, low energy consumption, and a low equipment failure rate. Construction strictly adheres to national standards for cold storage facilities, completing all procedures including pipeline welding, pressure testing, leak detection, insulation, and commissioning. Upon completion, it meets the requirements for long-term constant-temperature storage of frozen products and supports large-scale continuous material handling operations, establishing a high-standard, energy-efficient multi-level low-temperature warehouse facility in the region.