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Rotatable jacket type phase change energy storage heat accumulator

A technology of phase change energy storage and phase change heat storage, which is applied in the field of phase change energy storage, can solve the problems of poor heat storage capacity, low heat storage efficiency, and poor heat storage capacity of heat storage devices, so as to reduce heat diffusion and improve storage capacity. The effect of thermal efficiency

Pending Publication Date: 2018-11-09
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the poor heat storage capacity and low heat storage efficiency of ordinary heat storage devices have become the key factors restricting the development of this industry.
[0005] Based on this, the present invention proposes a rotatable jacketed phase-change energy storage heat accumulator, aiming to solve the problems of poor heat storage capacity and low heat storage efficiency of common heat storage devices. On the one hand, a new type with The helical outer fins of the diversion port, and the turbulence effect of the outer fins are improved by using the rotation of the heat exchange tubes, so as to achieve the purpose of enhancing heat transfer

Method used

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  • Rotatable jacket type phase change energy storage heat accumulator
  • Rotatable jacket type phase change energy storage heat accumulator
  • Rotatable jacket type phase change energy storage heat accumulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 , figure 2 , image 3 and Figure 5 As shown, the invention provides a rotatable jacketed phase change energy storage heat accumulator, including a central heat exchange unit, a heat storage unit and an outer heat exchange unit; the central heat exchange unit includes a central heat exchange circle Tube 1, one end of the central heat exchange tube 1 is the inlet of the central heat exchange unit, the other end is the outlet of the central heat exchange unit, and the two ends of the central heat exchange tube 1 are respectively provided with a central heat exchange tube 1 Rotating central heat exchange tube support 13, there is a support plate 19 on the central heat exchange tube support 13, a groove is opened on the support plate 19, balls 18 are housed on the groove, and the center Chucks 16 are arranged on the heat exchange tube 1 and outside the two central heat exchange tube supports 13, and the chucks 16 play a role in positioning the central h...

Embodiment 2

[0036] Such as figure 1 , figure 2 , Figure 4 and Figure 5 As shown, the difference from Embodiment 1 is that the outer fin 8 is composed of multiple helical segments, the latter segment is sequentially staggered from the previous segment, and the front part of the latter segment is connected to the middle position of the rear spiral groove of the former segment, Each helical segment in the outer fin 8 is also provided with a plurality of guide openings 7 .

Embodiment 3

[0037] Embodiment three: as figure 1 , figure 2 , image 3 and Figure 5 As shown, the difference from Example 1 is that the thermal storage unit is also filled with porous media 5, and the phase change thermal storage material is filled between the porous media 5 and the central heat exchange tube 1 and the In the gap formed by the annular area formed between the outer heat exchange tubes 4 .

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Abstract

The invention provides a rotatable jacket type phase change energy storage heat accumulator which comprises a center heat exchange unit, a heat storage unit and an outer layer heat exchange unit. Thecenter heat exchange unit comprises a center heat exchange round pipe, and center heat exchange round pipe supports allowing the center heat exchange round pipe to rotate are arranged at the two endsof the center heat exchange round pipe correspondingly. The outer layer heat exchange unit comprises an outer heat exchange round pip and a barrel, and the outer heat exchange round pipe is concentrically sleeved between the two center heat exchange round pipe supports of the centre heat exchange round pipe. The two ends of the barrel sleeves the outer heat exchange round pipe through sealing bearings. The two ends of the outer heat exchange round pipe are fixed to the center heat exchange round pipe through annular sealing heads. The heat storage unit is composed of an annular heat exchange area formed between the center heat exchange round pipe and the outer heat exchange round pipe. The rotatable jacket type phase change energy storage heat accumulator is high in heat storage capacity,high in heat storage efficiency and capable of preventing heat from diffusing outwards in the heat storage process.

Description

technical field [0001] The invention belongs to the technical field of phase change energy storage, and in particular relates to a rotatable jacket type phase change energy storage heat accumulator. Background technique [0002] As the global energy shortage situation gradually intensifies, the development of the new energy industry is imperative. However, clean energy such as wind energy and solar energy is greatly affected by the environment, and the power is unstable, and the fluctuating power is difficult to be directly used by the grid. If new energy is to be developed, it must rely on energy storage technology to store unstable wind and solar power and output it stably. Therefore, energy storage technology has become one of the core technologies of new energy development. Not only the development of new energy sources requires energy storage technology, but energy conservation is inseparable from energy storage technology. The demand for electricity is increasing yea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/02F28F1/40F28F1/36F28F9/013
CPCF28D20/021F28F1/36F28F1/40F28F9/013F28F2215/08Y02E60/14
Inventor 刘帅彭浩李鸿兴刘磊龙泽灵苏凤贤
Owner NANJING UNIV OF TECH
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