Phase change wall system capable of controlling storage and release of heat

Abstract

The invention discloses a phase change wall system capable of controlling storage and release of heat. The phase change wall system comprises a phase change wall, a heat preservation veneer, a heat exchanging pipeline, a connecting pipeline and a heat source device, wherein the phase change wall is made of a shaped phase change material; the heat preservation veneer movably covers the surface of the phase change wall; the circulating heat exchanging pipeline is arranged in the phase change wall; the heat source device arranged at the external part of the phase change wall is connected with the heat exchanging pipeline through the connecting pipeline to form a closed circulating pipeline. According to the phase change wall system, the heat exchanging pipeline is arranged in the phase change wall made of the shaped phase change material and with the surface movably provided with the heat preservation veneer, and the heat source device arranged at the external part of the phase change wall is connected with the heat exchanging pipeline through the connecting pipeline to form the closed circulating pipeline, so that the phase change wall system stores heat of the heat source device in the phase change wall, during the heat storage process, the heat is isolated by the heat preservation veneer, and during the heat release process, the heat preservation veneer is moved away to release heat in the wall; therefore, the heat using demand of a room is reduced, and the purpose of energy conservation is realized.

Description

technical field [0001] The invention relates to the field of building energy conservation, in particular to a phase-change wall system capable of controlling heat storage and discharge. Background technique [0002] With the country's promotion of building energy-saving work and people's requirements for the comfort of the building environment, research on building energy-saving technologies for renewable energy and new building energy-saving materials provides a new way to cut peaks and fill valleys and save building energy consumption. A phase change material (phase change material, PCM) is a substance with specific functions, which can change the phase state of a substance at a specific temperature or temperature range (phase transition temperature), and can be controlled under approximately constant temperature conditions during the phase transition process. It absorbs or releases a large amount of latent heat of phase change. Compared with sensible heat storage, it has ...

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Problems solved by technology

There are still the following problems in the practical application of energy storage building material components: First, the heat release characteristics of energy storage building materials determine that they release heat at the same time during the heat storage process, and can release a large amount of stored heat in a short period of time, which is different from the indoor heat storage. The requirements do not meet; the second is that it is difficult to store heat only by phase change materials, and it is difficult to select and prepare phase change materials that meet the requirements of building use properties and good heat storage and release performance, and it is relatively costly to improve its performance. High, not conducive to the general promotion of phase change energy storage building materials

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