Phase change heat storage heating device capable of improving utilization rate of phase change material

Abstract

The invention discloses a phase change heat storage heating device capable of improving the utilization rate of a phase change material. The device comprises an external box body (1) and an internal heat exchange tube structure. Hot water flows in, firstly exchanges heat with the phase change material at the bottom, then flows upwards to exchange heat with the surrounding phase change material, and finally flows out. As the water temperature of the lower part of the device is generally high, the heat exchange temperature difference with the phase change material is large and the heat exchange effect is obvious; and the heat exchange area of the upper part of the device is increased, so that most phase change materials in the device are uniformly and fully heated. Compared with the prior art, the phase change material has good heat storage performance and heat release performance, can store and release more heat, and has higher phase change material utilization rate and heat storage ratio; and manufacturing cost is low, and popularization is easy.

Description

technical field [0001] The invention relates to the technical field of heat storage, and more specifically belongs to a phase change heat storage heating device for improving the utilization rate of phase change materials. Background technique [0002] Phase change heat storage technology utilizes the characteristics of absorbing or releasing a large amount of latent heat when the phase change material undergoes a phase change, which can meet the requirements of storing waste heat in the phase change heat storage device when the electricity consumption is low, and the heat storage device can replace the electricity when the electricity consumption peaks. A heat source such as a boiler releases stored heat for heating. Compared with sensible heat storage technology, phase change heat storage technology uses latent heat and has a higher heat storage density; compared with thermochemical heat storage technology, phase change heat storage technology is more mature, stable and ea...

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Problems solved by technology

[0008] The purpose of the present invention is to address the deficiencies in the prior art. The present invention proposes a phase change heat storage heating device that improves the utilization rate of phase change materials, which is used to solve the problem of insufficient and uneven heat exchange of phase change materials inside the device, and improve the efficiency of the device. Heat storage performance and heat release performance

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