Medium and high temperature solar energy storage device based on efficient heat storage and release unit

An energy storage device, medium and high temperature technology, applied in solar thermal devices, heating devices, solar thermal power generation, etc., can solve the problems of corrosion-resistant materials, low heat storage and release rate, small heat transfer area and other problems in the pipeline system, and achieve Save material, increase the heat transfer area, and enhance the effect of heat transfer

Active Publication Date: 2014-12-24
NANJING UNIV OF TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

Although the system uses molten salt as the heat transfer and heat storage medium to realize solar thermal utilization, it has the disadvantages of small heat transfer area, low heat storage and release rate, corrosion-resistant materials and high cost for the piping system.

Method used

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  • Medium and high temperature solar energy storage device based on efficient heat storage and release unit
  • Medium and high temperature solar energy storage device based on efficient heat storage and release unit
  • Medium and high temperature solar energy storage device based on efficient heat storage and release unit

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] Such as figure 2 As shown, the process flow of the molten salt heat storage solar energy utilization system is divided into three parts, which are energy output unit 101 , medium and high temperature molten salt energy storage unit 102 and energy conversion and utilization unit 103 . Each part is described as follows:

[0034] Energy Production Unit 101: IN figure 1 The energy production unit 101 in the flow diagram shown includes a solar thermal collection system 104 . The heat conduction oil delivered to the pipeline in the solar heat collection system 104 by the heat conduction oil pump 111 is heated and absorbs heat. The heated heat transfer oil can be sent to the energy output unit 103 to generate high-pressure steam for work, and can also be sent to the medium-high temperature molten salt energy storage unit 102 to heat the storage tank...

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Abstract

The invention discloses a medium and high temperature solar energy storage device based on an efficient heat storage and release unit, and provides a heat storage unit, wherein the medium and high temperature solar energy storage device can efficiently utilize solar energy, and the heat storage unit is compact in structure, good in heat exchange effect, capable of quickly absorbing and releasing heat and good in pressure resistance, high temperature resistance and corrosion resistance. The medium and high temperature solar energy storage device comprises an energy output unit, an energy conversion and utilization unit and the high-temperature fused salt heat storage unit. When sunlight is sufficient, surplus solar energy is stored in the heat storage unit; the stored heat can be used for generating electric energy used for the industry or in daily life. The core of the medium and high temperature solar energy storage device is the medium and high temperature fused salt heat storage unit, the high-temperature fused salt heat storage unit can be applied to different energy output units and energy conversion and utilization units, and the application prospect is broad.

Description

technical field [0001] The invention relates to the field of new energy technology and equipment, in particular to a medium-high temperature molten salt heat storage type solar energy utilization system based on a high-efficiency heat storage / release unit. Background technique [0002] In the 21st century, with the depletion of fossil fuels and the seriousness of environmental pollution, energy issues have become a bottleneck restricting the rapid development of my country's national economy. Solar energy is clean and non-polluting, and has a wide range of sources. The development of solar energy is of great significance to solving energy problems. Solar thermal utilization is the most important form of solar energy utilization, and its utilization forms are diverse. According to the temperature reached by the medium, it can be divided into low, medium and high temperature utilization. For the solar thermal utilization system, due to the instability of solar radiation and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/34F24J2/46
CPCY02E10/40Y02P80/20
Inventor 彭浩凌祥李瑞
Owner NANJING UNIV OF TECH
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