Energy storage peak regulation system and method coupling waste heat recovery and water body heat storage

Through the energy storage peak shaving system that couples waste heat recovery and water heat storage, the problem of "three reforms and linkage" between cogeneration units is solved, and the annual participation in peak shaving and peak shaving is achieved, improving thermal efficiency and flexibility, taking into account energy conservation, carbon reduction and heating transformation.

CN119713359AActive Publication Date: 2025-03-28HUANENG CLEAN ENERGY RES INST
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Patent Information

Application Number
CN202411719654.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-03-28
Estimated Expiration
2044-11-28

AI Technical Summary

Technical Problem

It is difficult for cogeneration units to achieve the "three reform linkage" between energy conservation and carbon reduction, flexibility and heating at the same time. The existing technology can only achieve one or two of them and cannot be taken into account.

Method used

The energy storage peak regulating system is adopted that coupled waste heat recovery and water heat storage, and the heat regulating peak is collected by recycling circulating water waste heat, and the peak is achieved through the heating network return water heat release during the heating season, achieving peak regulating and peaking of participating units throughout the year.

Benefits of technology

It improves the thermal efficiency of cogeneration units, reduces coal consumption, and achieves annual peak shaving and peak severing the thermal and power contradictions, taking into account energy conservation and carbon reduction, flexibility and heating.

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Abstract

The embodiment of the invention provides an energy storage peak regulation system and method coupling waste heat recovery and water body heat storage. The system comprises a thermal power generation subsystem, a circulating water waste heat utilization subsystem, a water body heat storage subsystem and a heating subsystem. By recycling waste heat of circulating water, the heat efficiency of the unit can be improved under the same combined heat and power generation capacity, the coal consumption rate is reduced, and energy-saving and carbon-reducing transformation is assisted to be achieved. After the water body heat storage technology is coupled, the system can participate in peak regulation and peak service all the year round, and flexible transformation is assisted to be achieved; the diversified heat supply modes of steam extraction heat supply, circulating water waste heat recovery heat supply and heat storage water body heat supply assist in achieving heat supply transformation. The circulating water waste heat utilization technology and the water heat storage technology are deeply coupled with an existing combined heat and power generation unit, and energy-saving and carbon-reducing transformation, flexible transformation and heat supply transformation of the combined heat and power generation unit can be achieved at the same time.
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