Cold storage device and phase change cold storage air conditioning system

CN224454765UActive Publication Date: 2026-07-03CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
Filing Date
2025-07-14
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The low thermal conductivity of existing phase change cold storage materials affects the cold storage and release rates, thus limiting the energy efficiency of phase change cold storage devices.

Method used

The design employs reinforced heat exchange plates and tubular phase change material storage cores to enhance heat transfer performance. Chilled water is evenly distributed through a water distributor to improve the turbulence effect between the phase change material and the chilled water.

Benefits of technology

The phase change cold storage unit has improved the cold storage and release rates, enhanced the overall energy efficiency of the system, simplified the system configuration, and improved production efficiency and economy.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of phase change cold storage technology, specifically to a cold storage device and a phase change cold storage air conditioning system. The cold storage device includes a housing and further includes: a phase change cold storage unit fixed in an installation frame; the phase change cold storage unit includes a phase change material storage core and a reinforced heat exchange plate. The phase change material storage core stores phase change material with a phase change temperature of 7℃-12℃, and multiple phase change material storage cores are evenly arranged on the reinforced heat exchange plate; a water distributor is installed above the phase change cold storage unit for distributing chilled water to the phase change cold storage unit; a chilled water inlet pipe is used for the inflow of chilled water; and a chilled water outlet pipe is used for the outflow of chilled water. Utilizing a phase change material whose phase change temperature matches the inlet and outlet water temperatures of the air conditioning system for cold storage and release simplifies the system design, is energy-saving and environmentally friendly, and has good economic efficiency. The use of a reinforced heat exchange plate improves the thermal conductivity of the cold storage device, further accelerating the cold storage and release process, making it more practical.
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