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A rapid detection device and detection method for glass heat transfer coefficient based on unsteady heat transfer technology

A heat transfer coefficient and detection device technology, which is applied in the field of building energy-saving detection, can solve problems such as the inability to quickly detect the heat transfer coefficient of insulating glass, and achieve the effects of easy portability and installation, accurate detection results, and short detection time

Active Publication Date: 2019-09-10
TIANJIN BUILDING MATERIAL PROD QUALITY SUPERVISION & INSPECTION CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention aims to propose a rapid detection device and method for 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, to solve the problem of The 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

Method used

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  • A rapid detection device and detection method for glass heat transfer coefficient based on unsteady heat transfer technology
  • A rapid detection device and detection method for glass heat transfer coefficient based on unsteady heat transfer technology
  • A rapid detection device and detection method for glass heat transfer coefficient based on unsteady heat transfer technology

Examples

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Embodiment 1

[0042] A rapid detection device for the heat transfer coefficient of glass, which can be used to detect whether the heat transfer coefficient of insulating glass meets the construction requirements by using qualitative analysis methods, such as figure 1 and 2 As shown, it includes a portable control box 8, 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 8 through a wire 9, The portable control box 8 is used to monitor the testing process and process the testing data of the protective box, and the fixing bracket is used to fix the protective box on the insulating glass to be tested.

[0043] Among them, such as image 3 and 4 As shown, the protective box includes two rectangular semi-closed boxes 3 that are arranged symmetrically on both sides of the glass to be tested. The box is made of nylon as the main m...

Embodiment 2

[0062] A rapid detection device for glass heat transfer coefficient, such as figure 1 and 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.

[0063] Such as Figure 5 and 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 separated from the The installation positioning hole, the central installation hole and the semi-closed box are integrally formed; a through hol...

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Abstract

The invention provides a device and method for rapidly distinguishing low-e hollow glass from common glass on site and rapidly detecting the on-site heat transfer coefficient of the hollow glass on site based on the unsteady-state heat transfer technology. Fixed heating power is applied to one side of hollow glass through a control device and a protection box which are independently designed and developed, then the temperature variation and response time of the other side surface of the hollow glass are measured, a curve of the temperature and time variation is analyzed, the surface temperature variation rule of hollow glass of different combination forms is found, the relation between related parameters and a mathematic model are determined, a judgment basis and a judgment index (KP value) are searched for, and then whether tested pieces are hollow glass with an energy-saving effect or not is judged. The device and the method are suitable for various construction environments, and the heat transfer coefficient of hollow glass for doors and windows and curtain walls can be rapidly and accurately worked out; besides, detection data is accurate, and the blank of detecting the heat transfer coefficient of hollow glass for building doors and windows and curtain walls on site in China is filled up.

Description

technical field [0001] The invention belongs to the technical field of building energy-saving detection, and in particular relates to a qualitative analysis detection device and method for quickly distinguishing ordinary and LOW-E insulating glass on the construction site based on unsteady heat transfer technology and detecting insulating glass transmission for building doors, windows and curtain walls. Quantitative analysis and detection device and method for thermal coefficient. 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 dete...

Claims

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Application Information

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