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Self-heating test device for flammable solids of dangerous materials

A test device and technology of flammable solids, which are applied in the field of self-heating test detection to achieve the effects of accurate result judgment, good repeatability and low experimental cost

Inactive Publication Date: 2011-09-21
SHANGHAI ENTRY EXIT INSPECTION & QUARANTINE BUREAU OF P R C
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, no matter before or after the release of this standard, there is no equipment on the market that can meet the national standard for testing the self-heating of dangerous flammable solids. The entry inspection and quarantine system is an important means of judging whether import and export chemicals are self-heating substances. There is an urgent need for a testing equipment that can meet national standards in the market.

Method used

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  • Self-heating test device for flammable solids of dangerous materials
  • Self-heating test device for flammable solids of dangerous materials

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Embodiment Construction

[0014] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] see figure 1 The shown self-heating test device 10 for dangerous goods flammable solids includes a hot air circulation oven 11, a thermocouple 12, a sample container 13 with an open upper part, and a temperature recording controller 14. The sample container 13 passes through a Hot air circulation oven 11 A high-temperature-resistant hook 19 that can bear more than 10kg in the center of the oven top plate is hung in the center of the oven; thermocouples 12 penetrate from the outside of the hot air circulation oven 11 into its interior, and one end of one thermocouple 12 is inserted into the sample Inside the container 13 , the other end is connected with the temperature recording controller 14 ; The sample container 13 has a cube structure and is made of stainless steel mesh, wherein the stainless steel mesh has a pore ...

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Abstract

The invention discloses a self-heating test device for flammable solids of dangerous materials. The device comprises a hot-air circulating oven, two thermocouples, a sample container with an upper opening, and a temperature recording controller. Specifically, the sample container is installed in the center of the hot-air circulating oven into which the thermocouples penetrate from outside. One end of a thermocouple is inserted into the sample container, with the other end connected to the temperature recording controller, while one end of the other thermocouple is positioned in the hot-air circulating oven, with the other end connected to the temperature recording controller. According to the requirements of GB / T21612-2008 ''Method for Self-heating Test of Flammable Solids of Dangerous Materials'', with the self-heating test device of the invention, whether a self-heating phenomenon exists in flammable solids of dangerous materials can be conveniently confirmed. Tests with the self-heating test device show good repeatability in results and are characterized by simple operation, rapidity and accurate judgment of results.

Description

technical field [0001] The invention relates to the detection field of self-heating test for flammable solid substances in hazardous chemicals, and more specifically relates to a self-heating test device for flammable solids of dangerous goods. Background technique [0002] Flammable solid refers to a solid substance with a low ignition point, which will cause rapid and intense combustion and may emit toxic fumes or gases when exposed to open flames, heat, impact, friction or contact with certain items (such as oxidants) , which mainly refers to some chemical raw materials and their products, excluding explosives. As a special commodity, dangerous goods not only bring great convenience to our life, but also pose a huge threat to personal and property safety due to the dangers of explosion, flammability, poison, corrosion and radioactivity. threaten. The United Nations issued the "Recommendations on the Transport of Dangerous Goods" (UN TDG) and the "Global Harmonized Syste...

Claims

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Application Information

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IPC IPC(8): G01N25/32
Inventor 蒋伟陈相李蔚朱洪坤王海婷张晓蓉姚丽芳缪文彬
Owner SHANGHAI ENTRY EXIT INSPECTION & QUARANTINE BUREAU OF P R C
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