Distributed energy storage air conditioning system

Abstract

The invention discloses a distributed energy storage air conditioning system which comprises a refrigerating and heating system, an energy storage system, a transmission and distribution system, a user access system, a user terminal system, and a user distributed energy storage system. The refrigerating and heating system is used for preparing chilled water or hot water by utilizing refrigerating and heating equipment and conveying the chilled water or the hot water to the transmission and distribution system; or the refrigerating and heating system prepares a low-temperature cold storage or high-temperature heat storage medium and conveys the medium to the energy storage system; the energy storage system stores energy by utilizing the low-temperature cold storage or high-temperature heat storage medium prepared by the refrigerating and heating system and is provided with an energy release device; the transmission and distribution system conveys and distributes the chilled water or the hot water to the user access system, and the chilled water or the hot water is sent back to the refrigerating and heating system and the energy storage system after heat exchange; the user access system conducts cold and heat exchange on the chilled water and the hot water conveyed by the transmission and distribution system and the user terminal system or a user cold storage system; and the user terminal system and the user distributed energy storage system can also conduct heat exchange.

Description

technical field [0001] The invention relates to the field of energy storage air conditioning, in particular to a distributed energy storage air conditioning system. Background technique [0002] Energy storage air-conditioning technology is a practical and comprehensive technology that has emerged in China since the 1990s. Energy storage at night and release of energy during the day can play a role in "shifting peaks and filling valleys" for the power grid, and at the same time reduce the installed capacity of main engines during the day; combined with peak and valley electricity prices It is a comprehensive energy utilization technology that optimizes the allocation of resources, is economical and energy-saving. [0003] District cooling and heating supply is to meet the air-conditioning cold source and heating heat source requirements of multiple buildings in a specific area, and the chilled water and hot water are prepared centrally by a special energy station, and the ch...

AI Technical Summary

Problems solved by technology

Moreover, there are also "hump" characteristics during daytime operation, resulting in high peak load demand of the cooling and heating system, insufficient output of some loads, and great fluctuations in cooling and heating capacity

Only relying on energy storage and frequency conversion regulation of energy stations to adapt to user load fluctuations is not conducive to energy saving in operation, nor can it fully utilize the energy supply capacity of district cooling and heating systems

And after the user grows to a certain scale, the cooling and heating system often has insufficient peak energy supply capacity, and some loads are leftover, and the supply and demand cannot be matched. Since the civil construction of the energy station is often completed at one time, it is difficult to expand the capacity by adding hosts and energy storage equipment

[0005] Therefore, it is necessary to provide an energy storage solution to solve the problem of imbalance between supply and demand between district cooling and heating systems and users

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