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A system and method for testing critical heat radiation flux of paving materials

A test system and flooring material technology, applied in the field of material combustion performance, can solve the problems of test result deviation, test data error, etc., and achieve the effects of reducing impact, avoiding impact, and avoiding the adverse impact of smoke on measurement data

Active Publication Date: 2019-12-27
浙江中联消防产品质量检测有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the existing critical heat radiation flux test system for flooring materials, some samples will produce a lot of smoke when they burn, and continuing to test under the influence of smoke will cause large errors in the test data, resulting in Deviation of test results

Method used

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  • A system and method for testing critical heat radiation flux of paving materials
  • A system and method for testing critical heat radiation flux of paving materials
  • A system and method for testing critical heat radiation flux of paving materials

Examples

Experimental program
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Effect test

Embodiment 1

[0028] see figure 1 and figure 2 As shown, it is a schematic structural diagram of the critical heat radiation flux testing system for flooring materials of the present invention.

[0029] Such as figure 1 , figure 2 As shown, the critical heat radiation flux testing system for flooring materials includes a detection box 1, a sliding platform 2 and an air control module 3, the air control module 3 is fixedly connected to the detection box 1, and the air control module 3 is used for To control the air flow between the test box 1 and the external environment; the sliding platform 2 is movably connected with the test box 1, the sliding platform 2 can freely enter and exit the test box 1, and the sliding platform 2 is used for fixing Test piece; the detection box 1 is fixed on the ground.

[0030] The detection box 1 includes a box body 11 and a bracket 12 , and the box body 11 is fixed on the ground through the bracket 12 . The box body 11 is provided with a heat source as...

Embodiment 2

[0042] Embodiment 2 is further improved on the basis of Embodiment 1, specifically, the critical thermal radiation flux testing system for flooring materials also includes a first connecting device and a second connecting device, and the first connecting device includes The first toothed part and the second toothed part, the first toothed part is arranged on the sliding platform, the second toothed part is arranged on the box body, the first toothed part and the second toothed part The second tooth buckle part is correspondingly arranged.

[0043] The second connection device includes a guide rail and a slider, the slider is fixed on the sliding platform, the guide rail is fixed on the bottom of the box, and the slider and the guide rail are flexibly connected to realize the The sliding platform freely enters and exits the box.

[0044] The first buckle part includes first meshing teeth and a first sealing part, and the second buckle part includes second meshing teeth and a s...

Embodiment 3

[0046] The third embodiment is further improved on the basis of the first embodiment, specifically, the optical path assembly 41 includes a laser, a collimator, a main detector, a beam splitter, a reference detector, and a collector. The light beam emitted by the laser is divided into two paths by the spectroscope, one path is monitored by the reference detector and converted into reference data, and the other path is injected into the smoke as a measurement beam, and the measurement beam is passed through the smoke and then is detected by the quasi-detector. The detector collects and is converted into detection data by the main detector, the collector collects the reference data and the detection data, and uploads the reference data and the detection data to the processor 42, the processing The device 42 processes the reference data and the detection data to obtain the shading rate of the smoke.

[0047] The smoke exhaust pipe 312 is provided with an optical path assembly 41,...

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Abstract

The invention provides a system and a method for testing critical heat radiation flux of a flooring material. The system for testing the critical heat radiation flux of the flooring material comprises a detection box, a sliding platform, a pneumatic control module and a processing module, wherein the pneumatic control module is fixedly connected with the detection box; the sliding platform is movably connected with the detection box; the processing module is in data connection with the detection box and the pneumatic control module; the processing module comprises a plurality of light path assemblies; the light path assemblies are respectively arranged on the detection box and the pneumatic control module. According to the system provided by the invention, the shading rate of smoke can be detected through the light path assemblies, a detection result of the system for testing the critical heat radiation flux of the flooring material can be corrected through formula computing, adverse effects of the smoke generated by combustion of a test piece on measured data are avoided, and the detection accuracy of the system for testing the critical heat radiation flux of the flooring material is ensured.

Description

technical field [0001] The invention relates to the field of material combustion performance, in particular to a system and method for testing the critical heat radiation flux of flooring materials. Background technique [0002] With the rapid development of social economy, many crowded places have been decorated with combustible materials. How to effectively reduce the amount of combustible decoration materials and improve the fire performance of decoration materials is a difficult and heavy task for the current fire protection work. As an important decoration material, floor paving materials are widely used in various public places. Correctly detecting the combustion performance of floor paving materials and controlling their use in accordance with the requirements of the specifications has certain practical significance for effectively reducing and eliminating fire hazards. [0003] The critical heat radiation flux is the main parameter to investigate the fire hazard of f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/22
CPCG01N25/22
Inventor 钟奇鸣赵静波朱光伟王柱胡琼辉王钧楠庄孟平
Owner 浙江中联消防产品质量检测有限公司
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