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The cold storage tank is an energy-saving air-conditioning method that utilizes the peak-to-valley electricity price difference of the power grid, and uses a chiller to store cold in the pool at night, and cools it during the day while the main engine runs away from peaks. Temperature difference water supply and emergency cold source, so water cooling technology has broad development space and application prospects. Its social benefits are reflected in the ability to balance grid load, reduce power plant investment, and purify the environment, which is in line with the development direction of my country's industrial policy.

An obvious feature of my country's power supply in recent years is that the peak-to-valley difference between the "peak" load during the daytime in summer and the "valley period" load at night is very large, which reduces the load rate of the power grid. Centralized air conditioners are an important power consumer and the main cause of peak and valley loads in the power grid, and energy storage air conditioners are an effective solution to this problem. The so-called energy-storage air conditioner is to use the electricity in the low load period of the grid (such as night) for cooling or heating, and store the cold (heat) by using the energy storage medium, and then use the power during the peak load period of the grid (such as daytime). The cold and heat are released for the air-conditioning terminal of the building to undertake all or part of the load required by the air-conditioning during peak periods.

By adopting this energy storage technology, peak shaving and valley filling can be realized, which is one of the effective ways to alleviate the contradiction between power construction and new power consumption. my country's government departments have implemented different electricity price policies for power supply peaks and valleys. With the further expansion of the implementation scope of peak-valley electricity prices and the increase of peak-valley electricity price ratios, more favorable conditions are provided for the promotion and application of energy storage technology. On the one hand, with the increase of the peak-to-valley electricity price ratio, the use of energy storage technology by users will greatly reduce the operating costs of their air conditioners, reduce electricity costs, and improve corporate efficiency. On the other hand, the use of energy storage technology can shift peaks and fill valleys, which is conducive to improving the load rate of the power grid and is conducive to the economic operation of the power grid.