Detection method for protecting integral heat-insulation property of structure

Abstract

The invention relates to a measuring method for integral heat insulation performance of enclosure structure, which is a measuring method and device aiming at integral heat insulation performance of enclosure structure. It relates to the building heat engineering technology of heat insulation performance measurement of enclosure structure. The method measures and evaluates heat insulation performance of enclosure structure and monitors energy consumption level of building by adopting the method of dynamic data relevance of indoor and outdoor temperature. The method comprises following procedures in detail. 1.) Several indoor temperature sensors measuring indoor temperature (2) and outdoor temperature sensors measuring outdoor temperature (1) are connected with data collection and treatmentdevice (3) respectively. 2.) Sampling interval, total sampling time and starting instruction are inputted by keyboard (4). 3.) Calculation program of related coefficient of indoor and outdoor temperature in the data collection and treatment device (3) is used to carry comparison and analysis; obtained related coefficient is between 0 and 1; the value of related coefficient of indoor and outdoor temperature time sequence represents integral heat insulation performance of enclosure structure.

Description

technical field [0001] The invention relates to a method and a device for detecting the overall heat insulation performance of an enclosure structure, and relates to the technical field of building thermal engineering for detecting the heat insulation performance of a building enclosure structure. Background technique [0002] In the field of building thermal engineering, the test and evaluation of the overall thermal insulation performance of the building envelope is one of the problems that need to be solved urgently in the detection of building energy saving effects. [0003] The thermal insulation performance testing of the building envelope generally refers to two aspects, one is to test the thermal insulation performance of some components (such as walls, doors, windows) in the building envelope, and the other is The overall thermal insulation performance of the building envelope is tested. [0004] Testing of the thermal insulation performance of components within th...

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Problems solved by technology

For example, in the heat flow meter method, the heat flow sensor will have a large error under a small temperature difference, and it is also disturbed by uncertain factors such as the patch position; while the infrared thermal imaging method can only obtain the instantaneous temperature distribution on the surface of the local enclosure structure , and the actual energy consumption index and thermal insulation performance index cannot be obtained

[0006] In addition, due to factors such as environment, construction and installation, the conditions of building components in actual use are very different from those in the laboratory. Therefore, the overall thermal insulation of the envelope calculated based on the thermal insulation performance of each component There is often a big gap between the performance index and the actual situation

[0007] At present, there is no recognized mature method that can be used for the method, device or system of the overall thermal insulation performance test of the actual building envelope.

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