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Helmet flame resistance testing device and testing method

A test device and combustion-resistant technology, which is applied in the direction of measuring devices, electric devices, heat measurement, etc., can solve the problems of high cost and price, complex structure, etc., and achieve convenient testing, high degree of intelligence, and stable test conditions Effect

Inactive Publication Date: 2017-10-24
SHANGHAI FIRE RES INST OF THE MIN OF PUBLIC SECURITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is: the existing fire helmet test device has complex structure, high cost and high price, how to develop a set of test device for fire resistance performance of fire helmet, and take into account the accuracy and stability of the test at the same time

Method used

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  • Helmet flame resistance testing device and testing method
  • Helmet flame resistance testing device and testing method
  • Helmet flame resistance testing device and testing method

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Embodiment 1

[0030] The fire helmet combustion resistance test device is composed of a combustion heat source, a radiation heat source, a copper plate calorimeter, a temperature measuring thermocouple, a data acquisition device and a data processing system.

[0031] Such as figure 1 As shown, the radiant heat source is composed of nine quartz heating tubes 2 and a support 1, placed above the sample, and generates heat radiation after being energized. In the circuit, the quartz heating tube 2 is also connected to a 380V power supply. The Bunsen burner 8 is installed above the side of the sample, and sprays flames to the sample at an angle of 45° to the vertical direction. Bunsen burner 8 orifice diameter is 13mm. Platinum-rhodium copper thermocouples are mounted on the helmet to be tested and connected to the data acquisition device.

[0032] Such as figure 2 As shown, the combustion heat source is composed of a gas cylinder 11, a pressure regulating valve 12, a pipeline 13, a solenoid...

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Abstract

The invention relates to a helmet flame resistance testing device which comprises a combustion heat source, a radiation heat source, a copper sheet calorimeter, a first temperature thermocouple, a second temperature thermocouple, a data acquisition device and a data processing system, wherein the radiation heat source comprises a support, and a plurality of quartz heating pipes which are arranged in parallel are fixed on the support; the copper sheet calorimeter comprises a structure which is formed by copper sheets and assembly blocks and is provided with a hollow cavity, the top of the inner side of the hollow cavity is connected with the first temperature thermocouple, and the other end of the first temperature thermocouple is connected with a data acquisition system; one end of the second temperature thermocouple is connected with a helmet with the temperature to be tested, and the other end of the second temperature thermocouple is connected with the data acquisition system; and the data acquisition device is connected with the data processing system. The helmet flame resistance testing device considers the testing accuracy and stability simultaneously; the quartz heating pipes serve as heat sources, so that the calorific value is high; a fuel gas Bunsen burner serves as the combustion heat source, so that the testing condition is stable; and the complete set of device has the characteristics of reasonable structure, accurate testing and strong operability and can simulate the actual use environment of a fire fighting helmet.

Description

technical field [0001] The invention relates to a helmet combustion resistance testing device and a testing method thereof, belonging to the technical field of helmet combustion resistance testing. Background technique [0002] Firefighters will encounter various dangerous environments in the fire field when carrying out fire extinguishing operations. Usually, the heat in the fire field is the most important factor causing injury. Protective performance test method to evaluate the protective performance of fire helmets. [0003] At present, the flame and radiant heat comprehensive methods are used to test the combustion resistance performance of fire helmets. However, the current test device has a complex structure, high cost, and relatively expensive prices. Therefore, in order to obtain accurate test data to verify firefighters' protective clothing How to develop a cover for the fire-fighting helmet's combustion resistance test experimental device has become a technical p...

Claims

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Application Information

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IPC IPC(8): G01N25/28G01K7/02
CPCG01K7/02G01N25/28
Inventor 曹永强林建波杜希
Owner SHANGHAI FIRE RES INST OF THE MIN OF PUBLIC SECURITY
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