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An energy storage system using dry ice sublimation

An energy storage system and dry ice technology, applied in the field of energy storage systems using dry ice sublimation, can solve problems such as low energy utilization, waste, and excess energy, and achieve the effects of improving commercial applications, working efficiency, and improving performance

Active Publication Date: 2022-08-09
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, some current carbon dioxide energy storage systems have a lot of energy waste in the process of storing and releasing energy, the energy utilization rate is low, and the energy storage density needs to be further improved

Method used

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  • An energy storage system using dry ice sublimation

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Embodiment Construction

[0026] The present invention will be described in further detail below with reference to examples and accompanying drawings, but this does not limit the protection scope of the present invention.

[0027] see figure 1 , figure 1 It is a schematic diagram of the structure of the energy storage system using dry ice sublimation. The system of the present invention includes: main motor 1, dry ice making machine 2, dry ice storage tank 3, pump 4, Stirling engine cold end heat exchanger 5, Stella engine heat accumulator 6, Stirling engine hot end heat exchange 7, first Stirling engine piston 8, second Stirling engine piston 9, first generator 10, high pressure carbon dioxide surge tank 11, regenerative heater 12, heater 13, turbine 14, second The generator 15, the first valve 101, the second valve 102, the third valve 103, the fourth valve 104, the fifth valve 105 and their connecting parts.

[0028] The system mainly consists of three subsystems:

[0029] The dry ice production...

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Abstract

The invention discloses an energy storage system utilizing dry ice sublimation, comprising a dry ice making machine, a dry ice storage tank, a Stirling engine energy releasing component, a high-pressure carbon dioxide energy releasing component and a pump; , regenerative heater, heater and turbine; the outlet of the dry ice maker is communicated with the dry ice inlet of the dry ice storage tank, and the dry ice storage tank can flow through the heat exchange medium in the spiral tube bundle on the inner wall to the Stirling engine energy release assembly driven by the pump The cold end heat exchanger of the Stirling engine conveys cold energy, the carbon dioxide outlet of the dry ice storage tank is connected to the inlet of the high-pressure carbon dioxide surge tank, and the outlet of the high-pressure carbon dioxide surge tank is connected to the cold end of the heat return heater, the cold end of the heater and the permeable tank in turn. The turbine outlet is connected to the hot end of the regenerative heater, and the hot end of the regenerative heater is connected to the carbon dioxide raw material inlet of the dry ice maker. The invention can improve the energy storage efficiency of the phase-change carbon dioxide energy storage system and the commercial application of capturing carbon dioxide.

Description

technical field [0001] The invention belongs to the technical field of physical energy storage, and particularly relates to an energy storage system utilizing dry ice sublimation. Background technique [0002] Typical energy storage systems include pumped hydro energy storage, compressed air energy storage, flywheel energy storage, superconducting magnetic energy storage, and battery energy storage. Pumped storage is currently the most widely used and mature large-scale energy storage technology. It has a large energy storage capacity, but has certain requirements for geographical conditions. Therefore, the construction cost is high, the time is long, and it is easy to cause damage to the surrounding environment. Flywheel energy storage has problems such as small energy storage capacity and short continuous discharge time. Battery energy storage is very cost-effective and flexible in application, but as the number of cycles increases, the core will age, the lifespan will be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K13/00F01K7/00F01K13/02F01K21/00F01K25/10F02G1/043F02G1/053F02G1/055
CPCF01K13/00F01K21/00F01K25/103F01K13/02F01K7/00F02G1/043F02G1/053F02G1/055Y02P60/85
Inventor 谢永慧唐勃张荻孙磊
Owner XI AN JIAOTONG UNIV
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