An energy supply method and system using carbon dioxide as a carrier

Abstract

The invention relates to a method and a system for supplying energy by taking carbon dioxide as a carrier. The system comprises a dry ice manufacturer, a dry ice storage tank, a liquid carbon dioxide pump, a compressor and a low temperature fan, wherein the dry ice storage tank is connected with an inlet / outlet of the dry ice manufacturer; the dry ice storage tank is connected with a low-temperature liquid carbon dioxide generating device through a carbon dioxide liquid pipeline; the dry ice storage tank is connected with a low-temperature carbon dioxide user and / or the low-temperature liquid carbon dioxide generating device through a low-temperature carbon dioxide gas pipeline; liquid carbon dioxide is prepared into dry ice by the dry ice manufacturer and the dry ice is conveyed to the dry ice storage tank for storage; the low-temperature liquid carbon dioxide is sent to the low-temperature liquid carbon dioxide generating device for low-temperature generation; low-temperature carbon dioxide is sent to the low-temperature carbon dioxide user and / or the low-temperature liquid carbon dioxide generating device through the low-temperature carbon dioxide gas pipeline. According to the system provided by the invention, carbon dioxide is taken as working medium, the system is used for low-temperature generation and other low-temperature purposes, the energy is efficiently stored and utilized and the flexible adjustment and utilization for the energy can be realized.

Description

technical field

[0001] The invention belongs to the technical field of energy storage and energy supply, and relates to an energy supply method and system using carbon dioxide as a carrier. Background technique

[0002] With the development and progress of society and the increase of population, people's demand for electricity, heating and cooling energy is getting higher and higher, and the demand for electricity, heating and cooling energy changes more and more complicated with time. How to use carbon dioxide as a carrier to realize the energy storage and energy supply of the energy supply system, improve the utilization rate of energy, and reduce the waste of energy is an important challenge for the energy supply system.

[0003] Energy storage technology can realize the effective storage of energy and complete the efficient release of energy when needed. Using energy storage technology, the energy supply system can convert surplus energy into cold energy at any time, an...

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