Ice storage technology collaborative refrigeration unit: building a new mode of efficient and energy-saving joint operation

In the energy consumption optimization of industrial and commercial buildings, the joint operation strategy of ice storage technology and refrigeration units is becoming an effective solution to balance electricity costs and system stability. By storing the cooling energy during the low electricity price period at night in the form of ice and releasing it during the peak electricity consumption period during the day, it can effectively distribute the load of the power grid and reduce the continuous operating pressure of the refrigeration unit.

The key to joint operation lies in the dynamic matching between the refrigeration unit and the ice storage device. At night, the refrigeration unit operates at a stable load to lower the temperature of the cooling water below freezing point, completing ice making and energy storage; During peak daytime electricity consumption, the unit switches to low load mode, with the ice storage device providing the main cooling supply, forming a cycle of "off peak cooling". This mode not only reduces equipment wear and tear under high loads, but also indirectly extends maintenance cycles by reducing daytime operating hours.

In practical applications, it is necessary to adjust the cooling capacity of the refrigeration unit and the capacity ratio of the ice storage device according to the fluctuation law of the building's cooling load. For example, office buildings can be equipped with ice storage capacity at 30% -40% of the typical daytime cooling load, combined with intelligent control systems, to improve overall energy efficiency by 12% -18%, providing quantifiable technical reference for energy-saving renovation.