Thermal radiation testing device and method

A test device and heat radiation technology, which are applied in the field of heat radiation test, can solve the problem of inability to effectively test the heat preservation and heat insulation ability of radiation type heat preservation and heat insulation thin-layer coatings.

Pending Publication Date: 2021-03-30
ASIA PAINT SHANGHAI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a thermal radiation testing device and method to solve the problem that the existing testing technology cannot effectively test the thermal insulation capacity of radiation-type thermal insulation thin-layer coatings

Method used

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  • Thermal radiation testing device and method
  • Thermal radiation testing device and method
  • Thermal radiation testing device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 As shown, the present embodiment provides a thermal radiation testing device for testing the thermal insulation capability of the radiation-type thermal insulation thin-layer coating 21. The thermal radiation testing device includes an incubator 1, a temperature detection device 2 and a heat source. Wherein, the insulated box 1 has a heat transfer cylinder 11 . The temperature detection device 2 is placed in the heat transfer cylinder 11 and can form a vacuum chamber 12 with the heat transfer cylinder 11 . The outer surface of temperature detection device 2 can be coated with radiation type thermal insulation thin-layer paint 21. The heat source is arranged in the incubator 1, and can deliver heat to the temperature detection device 2 through the vacuum chamber 12.

[0035] At present, in the testing of the thermal insulation capacity of thermal insulation materials, it is generally based on heat conduction technology, and the measurement method based o...

Embodiment 2

[0050] The thermal radiation detection device provided in this embodiment is substantially the same as the thermal radiation detection device provided in Embodiment 1, such as figure 2 As shown, the main difference between this thermal radiation detection device and the thermal radiation detection device in Embodiment 1 is that: the heat transfer cylinder 11 is a composite structure with an interlayer 111 inside, and the heat source is located in the interlayer 111. Specifically, in this embodiment, the heat source is water. In addition, in this embodiment, the liquid inlet pipe 32 communicates with the heater 31 and the interlayer 111 , and the liquid outlet pipe 33 communicates with the interlayer 111 and the heater 31 .

[0051] The rest of the structure of the thermal radiation detection device provided in this embodiment is the same as that of the thermal radiation detection device in Embodiment 1, and will not be repeated here.

Embodiment 3

[0053] The thermal radiation detection device provided in this embodiment is substantially the same as the thermal radiation detection device provided in Embodiment 1, such as image 3 As shown, the main difference between the thermal radiation detection device and the thermal radiation detection device in Embodiment 1 is that the temperature detection device 2 is a temperature detector 23, does not include a heat conduction container 22, and is coated with a radiation-type thermal insulation thin-layer coating 21 on the surface of the temperature detector 23.

[0054] The rest of the structure of the thermal radiation detection device provided in this embodiment is the same as that of the thermal radiation detection device in Embodiment 1, and will not be repeated here.

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Abstract

The invention belongs to the technical field of heat radiation testing, and particularly discloses a thermal radiation testing device and method for testing the heat preservation and insulation capacity of a radiation type heat preservation and insulation thin-layer coating. The thermal radiation testing device comprises a heat preservation box, a temperature detection device and a heat source. Aheat transfer cylinder is arranged in the heat preservation box, the temperature detection device is arranged in the heat transfer cylinder, a vacuum cavity can be formed between the temperature detection device and the heat transfer cylinder, and the heat source can transmit heat to the temperature detection device through the vacuum cavity. The vacuum cavity can block conduction heat transfer and convection heat transfer, so that heat is transferred between the temperature detection device and the heat source only through radiation heat transfer. The outer surface of the temperature detection device can be coated with a radiation type heat preservation and insulation thin-layer coating, and the temperature value detected by the temperature detection device can reflect the heat preservation and insulation capacity of the radiation type heat preservation and insulation thin-layer coating.

Description

technical field [0001] The invention relates to the technical field of thermal radiation testing, in particular to a thermal radiation testing device and method for testing the thermal insulation capability of radiation-type thermal insulation thin-layer coatings. Background technique [0002] Conduction, radiation, and convection are the three modes of heat transfer. At present, in the testing of thermal insulation capacity of thermal insulation thin-layer coatings, it is generally based on heat conduction technology, and the measurement method based on heat radiation and heat convection technology is usually used as an auxiliary. For radiant thermal insulation thin-layer coatings, the existing testing technology cannot effectively reflect its role in practical applications. Moreover, the production cost of pure radiation heat source, that is, blackbody material or near-pure radiation heat source such as graphene heat source, is not applicable in actual production and life...

Claims

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Application Information

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IPC IPC(8): G01N25/20
CPCG01N25/20
Inventor 黄祖炜陈越李金钟徐志新
Owner ASIA PAINT SHANGHAI
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