Fabric thermal protection performance evaluation device with adjustable shape and angle of air layer under clothing
A technology of air layer and heat protection, which is applied in the field of fabric heat protection performance evaluation device, can solve the problems of heat protection performance prediction, and achieve the effect of improving accuracy and reducing cost
Active Publication Date: 2022-02-01
DONGHUA UNIV
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Problems solved by technology
Affected by the thickness of the air layer, clothing openings, and local heat flux density, the existing fabric thermal protection performance test can only accurately predict that the air layer under the clothing is close to 0 and the heat flux density is 84kW / m 2 The thermal protection performance of most parts of the wearing body cannot be directly predicted by the fabric test results
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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[0017] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
[0018] Flame-retardant fabrics are often used in thermal protective clothing such as firefighting clothing. Its main function is to reduce the heat transfer from high-temperature environments to human skin, thereby achieving the effect of thermal protection. Therefore, it is important to predict the level of thermal protection performance of clothing before it is used. Predicting clothing performance through fabric-level ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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The invention relates to a fabric thermal protection performance evaluation device with adjustable shape and angle of the air layer under clothes, comprising a heat source, a fixed tooth plate and a bracket system, the bracket system is installed on the fixed tooth plate, and the bracket system is provided with the The heat source, the support system includes a support and a skin surface simulator, and a fabric clamping device is arranged at the bottom of the support, and the fabric clamping device is used to clamp the fabric system to be tested between two vertical rods of the support, and the skin surface simulator is located at The top of the fabric system to be tested is used to simulate different local curved surface shapes of human skin, and the space between the skin surface simulator and the fabric system to be tested is used to simulate the air layer under the clothes; Simulate the skin sensor; the installation position of the bracket system and the fixed tooth plate is provided with an angle adjustment device, and the angle adjustment device is used to adjust the angle between the bracket system and the heat source. The invention can accurately predict the thermal protection performance of different parts of the wearing human body.
Description
technical field [0001] The invention relates to the technical field of performance evaluation of flame-retardant fabrics, in particular to a fabric thermal protection performance evaluation device with adjustable form and angle of an air layer under clothing. Background technique [0002] In the "human body-clothing-environment" system, the complex factors affecting the thermal protection performance of clothing mainly exist in clothing, the air layer under clothing and external heat sources. The basic properties, thermophysical parameters and structural characteristics of flame-retardant fabrics will affect the heat transfer inside the fabric. When the flame-retardant fabric is made into clothing and worn to the human body, the one-piece or separate clothing, and the non-uniform space structure between the clothing and the human body will affect the heat transfer. When the human body is exposed to heat sources, due to the opening design of clothing cuffs and hems, the heat...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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IPC IPC(8): G01N25/22G01N25/20
CPCG01N25/22G01N25/20
Inventor 田苗邓梦王云仪李小辉
Owner DONGHUA UNIV