Method for quickly detecting glass heat transfer coefficient based on unsteady state heat transfer technology

A technology of heat transfer coefficient and detection method, which is applied in the field of building energy-saving detection, can solve the problems such as the inability to quickly detect the heat transfer coefficient of insulating glass on site, and the inability to quickly detect the heat transfer coefficient of insulating glass, and achieve the effect of short detection time.

Inactive Publication Date: 2016-10-26
TIANJIN BUILDING MATERIAL PROD QUALITY SUPERVISION & INSPECTION CENT
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Problems solved by technology

[0004] In view of this, the present invention aims to propose a rapid detection method of glass heat transfer coefficient based on unsteady heat transfer technology, especially a qualitative analysis method for rapid identification of ordinary and low-e insulating glass on site, so as to solve the problem of existing Technology cannot quickly detect the heat transfer coefficient of insulating glass on site and quickly identify the problems of ordinary and low-e insulating glass on site
[0006] A rapid detection method of glass heat transfer coefficient based on unsteady heat transfer technology to solve the problem that the existing technology cannot quickly detect the heat transfer coefficient of insulating glass on site

Method used

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  • Method for quickly detecting glass heat transfer coefficient based on unsteady state heat transfer technology
  • Method for quickly detecting glass heat transfer coefficient based on unsteady state heat transfer technology
  • Method for quickly detecting glass heat transfer coefficient based on unsteady state heat transfer technology

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Embodiment 1

[0034] Qualitative analysis is used to detect whether the heat transfer coefficient of insulating glass meets the construction requirements, and the on-site rapid identification of ordinary and low-e insulating glass, such as figure 1 with 2 As shown, the rapid detection device used in the detection method of the present invention includes a portable control box 8, a protective box and a fixed bracket, and the protective box is used to provide a stable heat source and detect the surface temperature of the glass to be tested. It is connected with the portable control box 8 through a wire 9, the portable control box 8 is used to monitor the detection process and process the detection data of the protective box, and the fixed bracket is used to fix the protective box to the insulating glass to be tested superior.

[0035] Among them, such as image 3 with 4 As shown, the protective box includes two rectangular semi-closed boxes 3 that are arranged symmetrically on both sides o...

Embodiment 2

[0055] The method of quantitative analysis is used to detect whether the heat transfer coefficient of insulating glass meets the construction requirements. The rapid detection device used in this method, such as figure 1 with 2 As shown, it includes a portable control box, a protective box and a fixed bracket. The protective box is used to provide a stable heat source and detect the surface temperature of the glass to be tested. The protective box is connected to the portable control box through wires. The portable The control box is used to monitor the detection process and process the detection data of the protective box, and the fixing bracket is used to fix the protective box on the insulating glass to be tested.

[0056] Such as Figure 5 with 6 As shown, the difference from Example 1 is that the semi-enclosed box in this example is made of nylon as the main material, and several heat insulation boards are arranged in the box, and the heat insulation boards are separate...

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Abstract

The invention provides an in-situ heat transfer coefficient detection method for quickly identifying common and low-e hollow glass in situ and quickly detecting hollow glass in situ based on unsteady state heat transfer technology. By applying fixe heating power to one side of hollow glass, temperature change and response time of a surface of the other side of the hollow glass are measured, a temperature and time change curve is analyzed, law of hollow glass surface temperature changes in different combinations is found, a relational and mathematical model of related parameters is determined, determination basis and determination index (KP value) are sought, and thus whether a test piece is energy-saving hollow glass is identified. The device and method are applicable to various construction environments and enable heat transfer coefficient of hollow glass for doors/windows and curtain walls to be quickly and accurately calculated, detection data are precise, and the gap of China in the in-situ detection of heat transfer coefficient of hollow glass for building doors/windows and curtain walls is filled.

Description

technical field [0001] The invention belongs to the technical field of building energy-saving detection, and in particular relates to a qualitative analysis and detection method for quickly distinguishing ordinary and LOW-E insulating glass at a construction site based on unsteady heat transfer technology and detecting the heat transfer coefficient of insulating glass for building doors, windows and curtain walls Quantitative analysis and detection methods. Background technique [0002] At present, domestic testing of glass, especially insulating glass or coated insulating glass, is mostly laboratory testing equipment. The equipment is large in size. Due to the steady-state heat transfer principle, the testing process is very long and the control requirements for environmental conditions are very strict. [0003] The invention is based on the principle of unsteady heat transfer to conduct on-site qualitative analysis and quantitative analysis and detection of insulating glas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20
CPCG01N25/20
Inventor 徐凯庞伟白锡庆
Owner TIANJIN BUILDING MATERIAL PROD QUALITY SUPERVISION & INSPECTION CENT
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