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Heat storage/cold storage device

A cooler and heat storage technology, applied in heat storage equipment, heat exchanger types, indirect heat exchangers, etc., can solve the problem of low heat storage/cold energy storage efficiency, reduce mass and improve energy storage Efficiency, improving the effect of heat storage/cold capacity

Pending Publication Date: 2019-08-30
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide heat storage / cooler to solve the problem of low energy storage efficiency of existing heat storage / cooler

Method used

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  • Heat storage/cold storage device

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected...

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Abstract

The invention relates to the field of energy storage devices, and provides a heat storage / cold storage device. The heat storage / cold storage device comprises a shell, at least three layers of solid-phase medium are filled in the shell; the solid-phase medium of a middle layer has one or more of the following properties; the density of the solid-phase medium in the middle layer is larger than thatof other layers of solid-phase medium, the porosity of the solid-phase medium in the middle layer is smaller than that of other layers of solid-phase medium, and the specific heat capacity of the solid-phase medium in the middle layer is larger than that of other layers of solid-phase medium. According to the heat storage / cold storage device, the shell is filled with the solid-phase medium, duringuse, the flowing heat exchange fluid exchanges heat with the solid-phase medium, so that storage and release of heat energy or cold energy are realized; and the solid-phase medium with low density orhigh porosity or low specific heat capacity are arranged on the two sides of the middle layer, so that under the condition that the heat flux density is not changed, the mass of the solid-phase medium is reduced, the temperature gradient is increased, the expansion of an internal inclined temperature layer is inhibited, and the energy storage efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of energy storage devices, in particular to a heat storage / cooler. Background technique [0002] At present, the contradiction between energy supply and demand is becoming increasingly prominent, and the share of installed capacity of renewable energy has increased significantly. However, the uncertainty and intermittency of renewable energy will lead to unstable output energy. Therefore, energy storage technology has become a hot spot in the field of renewable energy research. [0003] In energy storage technology, heat storage and cold storage technology can not only effectively overcome the discontinuity in the process of energy use, but also achieve a good space-time match between energy supply and energy use, and has broad application prospects. Specifically, heat storage technology can be used in power system peak regulation, aerospace, solar energy utilization, waste heat recovery, heating and air con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/00
CPCF28D20/0056Y02E60/14
Inventor 季伟郭璐娜王俊杰崔晨陈六彪郭嘉
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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