Stepped heat storage system and stepped heat storage method

A heat storage system and heat storage technology, applied in the field of heat storage systems, can solve the problems of high cost, complex structure, limited thermal energy output stability, etc., and achieve the effects of low cost, simple structure, and flexible operation scheduling.

Inactive Publication Date: 2016-06-01
中广核太阳能开发有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing heat storage system has problems such as limited stability of thermal energy output, high cost, complex structure, and inflexible operation scheduling, which limits the extensive utilization of large-scale solar thermal power generation and industrial waste heat.

Method used

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  • Stepped heat storage system and stepped heat storage method

Examples

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specific Embodiment

[0071] For main line valve design:

[0072] Set the first valve 1 in the first main road pipeline;

[0073] Set the second valve 2 and the third valve 3 in sequence in the second main pipeline; wherein, the second valve 2 is close to the solid heat storage heat exchanger A, and the third valve 3 is close to the phase change heat storage heat exchanger B;

[0074] Set the fourth valve 4 and the fifth valve 5 in sequence in the third main pipeline; wherein, the fourth valve 4 is close to the phase change heat storage heat exchanger B, and the fifth valve 5 is close to the molten salt steam superheater C;

[0075] The sixth valve 6 is set in the fourth main road pipeline.

[0076] For bypass line valve designs:

[0077] The first bypass pipeline and the second bypass pipeline have a first common pipeline; the second bypass pipeline and the third bypass pipeline have a second common pipeline;

[0078] Set the 8th valve 8 in the first public pipeline; set the 9th valve 9 in the ...

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Abstract

The invention provides a stepped heat storage system and a stepped heat storage method. The stepped heat storage system comprises a solid heat storage heat exchanger (A), a phase change heat storage heat exchanger (B), a fused salt steam superheater (C), a main pipeline and a bypass pipeline. The stepped heat storage system and the stepped heat storage method have the advantages of stability of heat energy output, low cost, a simple structure, flexible operation and control and the like, adapt to heat storage and heat exchange of a large solar thermal power station heat storage system, adapt to heat storage of unstable industrial waste heat recovery, and have great significance to full utilization of renewable energy sources and waste heat.

Description

technical field [0001] The invention relates to a heat storage system, in particular to a cascade heat storage system and a cascade heat storage method. Background technique [0002] With the shortage of conventional energy and the improvement of people's requirements for environmental quality, renewable energy, especially solar energy, is more and more popular. At the same time, the large amount of waste heat generated by industrial production is also the focus of comprehensive energy utilization in the future. [0003] Whether it is solar energy or industrial waste heat, the biggest shortcoming is the instability of energy supply. Combining solar thermal power generation and industrial waste heat with heat storage systems increases the stability and availability of solar and industrial waste heat output. [0004] However, the existing heat storage system has problems such as limited stability of heat output, high cost, complex structure, and inflexible operation schedulin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/00F28D20/02F22B1/02F22G1/00
CPCY02E60/14Y02E70/30
Inventor 荆汝林成斌邱河梅李明姜欣
Owner 中广核太阳能开发有限公司
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