Test device for radiant heat resistance of fabrics

Abstract

The invention discloses a test device for radiant heat resistance of fabrics, and belongs to the field of safety technology. The test device comprises a radiative heat source, a copperplate calorimeter and a data acquisition system, wherein the radiative heat source consists of two silicone carbide heating rod sets and a resistor; each silicone carbide heating rod set comprises a plurality of silicone carbide heating rods which generate thermal radiation after being electrified; in a circuit, the silicone carbide heating rod sets are formed by serially connecting the silicone carbide heating rods, and the two parallelly connected silicone carbide heating rod sets are connected in series with the resistor and then connected to a 220V power supply; a copper-constantan thermocouple is welded in the center of the internal surface of the arc of a copperplate and then connected to an acquisition card through a through hole at an assembling block; the copperplate is glued to the assembling block through a bonding agent; the data acquisition system consists of the acquisition card and a computer, wherein the acquisition card acquires a temperature signal of the copper-constantan thermocouple and then inputs the temperature signal into the computer for data processing and computation, and the like. The test device is used for testing the radiant heat resistance of the fabrics, has the characteristics of reasonable structure, accurate test and strong operability, and can meet the requirements of the radiant heat resistance tests for the fabrics.

Description

technical field [0001] The invention belongs to the technical field of safety, and in particular relates to a test device for the anti-radiation heat penetration performance of fabrics. Background technique [0002] If the radiant heat encountered by firefighters during fire extinguishing operations exceeds the tolerance of the normal physiological balance process of the human body, it will cause dangers ranging from minor injuries to death. The heat in the fire scene spreads to the outside world in three ways: conduction, convection and radiation, among which heat radiation is the most important factor causing damage. Therefore, the anti-radiation heat penetration performance of firefighters' protective clothing is the key technical index to determine the protective performance of firefighters' protective clothing. [0003] At present, foreign countries with advanced technology have designed and manufactured test devices for firefighters' protective clothing anti-radiation...

AI Technical Summary

Problems solved by technology

[0003] At present, foreign countries with advanced technology have designed and manufactured test devices for firefighters' protective clothing anti-radiation heat penetration performance test according to the ISO 6942-2002 "Test method for heat-insulating protective clothing-material and multi-layer structure heat radiation penetration performance test" , but the introduction of the test device is more expensive

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