An integrated energy supply system and method including compressed air energy storage
A technology of compressed air energy storage and compressor, applied in the field of energy storage, can solve the problems of reduced heat pump operation efficiency, lower soil temperature, loss of soil heat balance, etc., and achieve the effects of avoiding energy waste, efficient operation, and efficient waste heat.
Active Publication Date: 2022-03-01
SICHUAN ENERGY INTERNET RES INST TSINGHUA UNIV +3
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Problems solved by technology
However, in severe cold areas where the loads of winter and summer are very different, the heat load is far greater than the cooling load, and the heat that the heat pump takes out of the soil in winter is much greater than the heat that it dissipates in summer. Year-round operation will cause the heat in the soil to lose balance, and the soil temperature will decrease year by year. , the operating efficiency of the heat pump will also decrease year by year
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[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0036] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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Embodiments of the present invention provide a comprehensive energy supply system and method including compressed air energy storage, which relate to the technical field of energy storage. In the system, the compressor, cooler, gas storage, regenerator, turbine and generator are connected in sequence, and the generator is used to transmit electric energy to the thermoelectric load. The cooler, the thermal storage tank, the heat regenerator, the first heat exchanger and the thermal storage tank are sequentially connected to form a circulation loop. The first heat exchanger and the soil heat accumulator are connected to form a circulation loop, and the first heat exchanger is used to store surplus heat generated by the regenerator into the soil heat accumulator. The ground source heat pump is connected with the soil heat accumulator, and the ground source heat pump is used to transfer the heat in the soil heat accumulator to the thermoelectric load. The system can store the excess compression heat in the soil during the process of compressed air energy release, ensure the temperature of the medium in the cold storage tank is within a reasonable range, make the compressed air energy storage process run safely and efficiently, and store the heat energy stored in the soil when needed Efficient use and avoid energy waste.
Description
technical field [0001] The invention relates to the technical field of energy storage, in particular to a comprehensive energy supply system and method including compressed air energy storage. Background technique [0002] Compressed air energy storage technology is a large-capacity physical energy storage technology, which has significant advantages in solving new energy consumption, enhancing power grid flexibility, and improving the characteristics of new energy power generation and grid connection. The energy storage technology has the advantages of "zero carbon emission, high efficiency, long life, combined cooling / heating / electricity multi-energy supply, multi-energy fed storage". Therefore, it has good advantages in the field of large-scale energy storage and comprehensive energy. Promote application prospects. However, the compressed air energy storage system will generate a large amount of low-temperature waste heat when it supplies power, and it will also cause a ...
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IPC IPC(8): F04B35/04F04B41/02F04B39/06F01K27/02F01K25/08F01D15/10F28D20/00F25B30/06
CPCF04B35/04F04B41/02F04B39/06F01K27/02F01K25/08F01D15/10F28D20/0052F25B30/06Y02E60/14Y02E60/16
Inventor 张跃梅生伟郑天文陈来军税杨浩高博谢毓广王小明
Owner SICHUAN ENERGY INTERNET RES INST TSINGHUA UNIV