A cascaded phase change heat storage and heat release integrated device using metal foam

A metal foam, phase-change heat storage technology, which is applied to heat storage equipment, heat exchange equipment, heat exchanger types, etc. Heat transfer ability, the effect of improving the heat storage rate

Inactive Publication Date: 2016-02-03
SHANGHAI JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing thermal energy storage device cannot quickly store and utilize high-temperature heat energy in stages according to different thermal energy qualities, the present invention further provides a cascade phase change heat storage and heat release integrated device using metal foam

Method used

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  • A cascaded phase change heat storage and heat release integrated device using metal foam
  • A cascaded phase change heat storage and heat release integrated device using metal foam
  • A cascaded phase change heat storage and heat release integrated device using metal foam

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specific Embodiment approach 1

[0027] Specific implementation mode one: combine Figure 1 to Figure 4 To illustrate, a cascaded phase change heat storage and heat release integrated device using metal foam in this embodiment includes a shell A, a heat release pipe part B, a four-stage phase change material heat storage unit C, and a four-stage heat absorption pipe part D, three compartments E;

[0028] Wherein, the four-stage phase-change material thermal storage unit C includes a primary thermal storage unit 8, a secondary thermal storage unit 14, a third-stage thermal storage unit 20, and a fourth-stage thermal storage unit 26;

[0029] The four-stage heat-absorbing pipe part D includes a first-stage heat-absorbing pipe part, a second-stage heat-absorbing pipe part, a third-stage heat-absorbing pipe part, and a fourth-stage heat-absorbing pipe part;

[0030] Heat release pipe part B includes heat release pipe 1, heat release pipe inlet 2, heat release pipe metal foam I3, heat release pipe metal foam II4,...

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Abstract

The invention provides a step phase change heat storage and heat release integrated device with metal foam and relates to a heat energy step storage device. The step phase change heat storage and heat release integrated device aims at solving the problem that high-temperature heat energy cannot be fast stored and utilized in a sectioned and step mode according to different quality levels of the heat energy through an existing heat energy storage device. A heat release pipe part comprises a plurality of heat release pipes, n levels of phase change material heat storage units are sequentially distributed between two adjacent levels of phase change material heat storage units and are separated through separating baffles, n levels of heat release pipe metal foam is arranged in the heat release pipes, all the levels of heat release pipe metal foam is arranged at the positions, located in the corresponding phase change material heat storage units, in the heat release pipes, n levels of heat absorption pipe parts are arranged on the periphery of each heat release pipe, the horizontal parts of all the levels of heat absorption pipes are arranged in the corresponding phase change material hot storage units in an insertion mode, and heat absorption pipe metal foam is arranged inside the horizontal parts of all the levels of heat absorption pipes. According to the step phase change heat storage and heat release integrated device, the levels of phase change material heat storage units are used for conducting step storage on the heat energy, so that the utilization efficiency of the energy is improved under the premise that the quality of the energy is ensured.

Description

technical field [0001] The invention relates to a thermal energy cascaded storage device, in particular to a cascaded phase change heat storage and heat release integrated device using metal foam, which performs cascaded thermal energy storage according to thermal energy quality in the fields of solar heat utilization and waste heat recovery. Background technique [0002] Thermal energy storage technology is an adjustment method to solve the mismatch between supply and demand of thermal energy in terms of time, region, and intensity. It can not only improve energy utilization efficiency, but also realize rational utilization of resources. LNG cold energy utilization, power peak shaving, building insulation and cooling, temperature control of periodically working electronic devices, and storage and transportation of medical items are widely used. Mature thermal energy storage technologies mainly include sensible heat energy storage, gas-liquid phase change energy storage, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D20/00F28F21/08
CPCY02E60/14
Inventor 徐会金赵长颖
Owner SHANGHAI JIAOTONG UNIV
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