Phase-change temperature-adjusting construction material detector and detection method thereof

Abstract

The invention discloses a phase-change temperature-adjusting construction material detector and a detection method thereof. The detector comprises a thermotank, a test specimen box, a thermal insulating box and a control cabinet, wherein the test specimen box comprises a box body and a cover plate; a plurality of eccentric pinch rollers are distributed on the side wall of the box body; a temperature sensor with a drill bit is arranged on the test specimen box. The detector not only can detect the granular phase-change temperature-adjusting construction material, but also is particularly suitable for detection of a phase-change temperature-adjusting building board, and can accurately and reasonably obtain the whole phase-change characteristics of the phase-change construction material. According to the detection method, the construction material is kept to be under a lower temperature by the thermotank, the temperature change of the construction material can be detected in the phase change process through the phase change of the construction material in the thermotank, and further the phase-change temperature range, the specific heat capacity and the phase-change latent heat of the construction material can be worked out; the detection method is simple, convenient, reasonable and easy to operate.

Description

technical field [0001] The invention belongs to the technical field of phase-change material detection, and in particular relates to a phase-change temperature-regulating building material detection device and a detection method thereof. Background technique [0002] Phase Change Material (PCM - Phase Change Material) refers to a substance that changes its physical properties and can provide latent heat with temperature changes. The process of changing physical properties is called a phase change process. During the phase change process, a phase change material will absorb or release a large amount of latent heat. The introduction of phase change materials to architecture is a revolutionary development in the field of architecture. Adding phase change materials to building materials can not only be used as bearing or decorative materials, but also can store more heat, so as to effectively realize the function of building temperature regulation and energy saving. Phase chan...

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Problems solved by technology

[0003] At present, differential scanning calorimetry (DSC) is the most widely used test method for traditional phase change materials. Its disadvantages are: 1) The number of test samples is very small, generally around 10-30mg (according to the sample Density is different), this order of magnitude of sample volume is difficult to accurately measure phase change temperature-regulating building materials mixed with only a small amount of phase-change materials; Testing requirements

In addition, there are limitations in the testing equipment and methods of other phase-change temperature-adjusting building materials. It is often necessary to crush the building materials into granules before testing. This will result in large test errors in the performance of phase-change temperature-regulating building materials, and it is impossible to accurately detect the phase-change temperature-regulating performance of phase-change temperature-regulating building materials.

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