On-site detection device and detection method for heat transfer coefficients of building enclosure structures

A technology of building envelope structure and heat transfer coefficient, applied in the direction of material thermal conductivity, material thermal development, etc., can solve the problems of increased indirect measurement error, simple and convenient solution, and complicated heat flow measurement, so as to reduce measurement error and save The effect of detection cost and small size of equipment

Inactive Publication Date: 2010-07-21
NINGBO UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

However, the measurement of the lateral heat flow of the hot box is complicated, resulting in an increase in the indirect measurement error, and it does not solve the problem of simple and convenient on-site measurement.
The devices proposed in the last two patents have only heating function, and the use is limited by seasons
The latter two patents mentioned above are all designed for the installation characteristics of building walls, and are inconvenient to install for building envelope structures such as roofs and floors.

Method used

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  • On-site detection device and detection method for heat transfer coefficients of building enclosure structures
  • On-site detection device and detection method for heat transfer coefficients of building enclosure structures
  • On-site detection device and detection method for heat transfer coefficients of building enclosure structures

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] Such as Figure 1 to Figure 3 As shown, the on-site detection device for the heat transfer coefficient of the new building envelope structure includes:

[0034] Barrel housing 1, such as figure 2 and image 3 As shown, the housing 1 includes an inner housing 16 and an outer housing 17, and an insulating material 18 is filled between the inner and outer housings 16, 17; the bottom surface 11 of the housing 1 has a square gap, and the gap can also adopt other shapes The mounting plate 12 adapted to the notch is detachably arranged on the notch by screws; a vapor chamber 13 parallel to the bottom surface of the shell is provided near the mouth of the barrel along the circumferential direction of the inner wall of the shell 1, so that the soaking A plurality of holes (not shown in the figure) are evenly distributed on the plate 13 . Th...

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Abstract

The invention relates to an on-site detection device and a detection method for heat transfer coefficients of building enclosure structures. The device comprises a temperature difference producing device arranged on a to-be-detected enclosure structure, as well as a data acquisition device for testing and receiving temperature and heat flow of the inner and outer sides of the to-be-detected enclosure structure. The device is characterized in that the temperature difference producing device is arranged in a bucket-shaped shell; the shell and the to-be-detected enclosure structure form a cylindrical cavity; a fan used for forced convection is arranged in the shell; and the temperature difference producing device comprises heating equipment and refrigeration equipment. The detection device provided by the invention enables heat to be capable of one-dimensional conduction, thereby greatly reducing measurement errors. The device used for on-site detection has the advantages of convenient installation and use, as well as testing time free from seasonal limit.

Description

technical field [0001] The invention relates to an on-site detection device and a detection method for the heat transfer coefficient of a building enclosure structure. Background technique [0002] Today, when the energy crisis has become the focus of the world's attention, building energy conservation, as an important aspect of energy conservation from the source of life, has been highly valued by governments and societies all over the world. In order to control building energy efficiency, one of the main problems to be solved is to strengthen the supervision of building construction process to ensure the effect of building energy saving. In addition to further improving the technical standards for energy-saving design, it is necessary to especially strengthen the research on technical means for energy-saving testing and acceptance. Among them, the thermal conductivity or thermal resistance of building materials and envelope structures is one of the key contents that deter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20G01N25/18
Inventor 蔡可键巩学梅王海波郭丽红殷顺湖何永红
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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