CN102192924A - Self-heating test device for flammable solids of dangerous materials - Google Patents
Self-heating test device for flammable solids of dangerous materials Download PDFInfo
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- CN102192924A CN102192924A CN 201010124384 CN201010124384A CN102192924A CN 102192924 A CN102192924 A CN 102192924A CN 201010124384 CN201010124384 CN 201010124384 CN 201010124384 A CN201010124384 A CN 201010124384A CN 102192924 A CN102192924 A CN 102192924A
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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
The present invention relates in the hazardous chemical to carry out detection range, more particularly relate to a kind of self-heating test unit of dangerous material inflammable solid from heat test for the inflammable solid material.
Background technology
It is lower that inflammable solid refers to burning-point, meeting naked light, be heated, clash into, rub or with after some article (as oxygenant) contact, can cause rapid, active combustion, and may give out the solid matter of toxic smog or toxic gas, this mainly is meant some industrial chemicals and goods thereof, does not comprise explosive.Dangerous material are as a kind of special commodity, bring greatly easily simultaneously in the life of giving us, because dangerous material also have danger such as blast, inflammable, murder by poisoning, corrosion and radioactivity, also to the person and the huge threat of property safety formation.The United Nations issued " about the recommendation of Dangerous Goods Transport " (UN TDG) for this reason and has reached " GHS " (GHS), and China also issued and came into effect " the dangerous material inflammable solid is from thermal test method " of GB/T 21612-2008 in 2008.No matter but before the issue of this standard, still after the issue, up to the present also there is not a kind of equipment that is used to detect dangerous material inflammable solid self-heating that can meet GB on the market, make public testing agency, especially import and export chemicals for China's customs examination and quarantine system supervision and whether belong to the important judge means that the self-heating material lacks, press for a kind of checkout equipment that can meet national standard on the market.
Summary of the invention
At the problem that does not have to test dangerous material inflammable solid self-heating that exists in the prior art, the purpose of this invention is to provide a kind of self-heating test unit of dangerous material inflammable solid, can determine easily whether the dangerous material inflammable solid exists the phenomenon of self-heating.
To achieve these goals, the present invention adopts following technical scheme:
A kind of self-heating test unit of dangerous material inflammable solid comprises the sample receiver and the temperature recorder controller (TRC) of hot air circulate formula baking oven, thermopair, opened upper end, and described sample receiver is located at the center of hot air circulate formula baking oven; Thermopair penetrates its inside from the outside of hot air circulate formula baking oven, and wherein an end of a thermopair inserts in the sample receiver, and the other end links to each other with temperature recorder controller (TRC); One end of another thermopair is located in the hot air circulate formula baking oven, and the other end links to each other with temperature recorder controller (TRC).
The top of described sample receiver is provided with the container cover that is used to seal.
Described self-heating test unit also comprises jar, and jar is located in the hot air circulate formula baking oven and the periphery of sample receiver.
Described self-heating test unit also comprises signal output device, and signal output device links to each other with temperature recorder controller (TRC).
Described signal output device comprises at least and is used to the warning input block setting the temperature input block of detected temperatures and be used to set alarm parameters.
The preferred implosion guard of front apron glass of described hot air circulate formula baking oven.
Described self-heating test unit also comprises safety alarm, and safety alarm links to each other with chromel-alumel couple.
Compared with prior art, adopt the self-heating test unit of a kind of dangerous material inflammable solid of the present invention, comprise the sample receiver and the temperature recorder controller (TRC) of hot air circulate formula baking oven, thermopair, opened upper end, described sample receiver is located at the center of hot air circulate formula baking oven; Thermopair penetrates its inside from the outside of hot air circulate formula baking oven, and wherein an end of a thermopair inserts in the sample receiver, and the other end links to each other with temperature recorder controller (TRC); One end of another thermopair is located in the hot air circulate formula baking oven, and the other end links to each other with temperature recorder controller (TRC).Self-heating test unit of the present invention can be according to the requirement of GB/T21612-2008 " the dangerous material inflammable solid is from thermal test method ", determine easily whether the dangerous material inflammable solid exists the phenomenon of self-heating, not only satisfied the active demand in market, also filled up the blank of a product, make domestic common detection mechanism can by this device pass judgment on easily the dangerous material inflammable solid from thermal effect.By the test of self-heating test unit of the present invention, its result's good reproducibility, and have easy and simple to handlely, fast, the characteristics of accuracy of judgement, and experimental expenses as a result are lower, can save a large amount of laboratory sample quantity, funds and time.
Description of drawings
Fig. 1 is the structural representation of the self-heating test unit of dangerous material inflammable solid of the present invention.
Embodiment
Further specify technical scheme of the present invention below in conjunction with drawings and Examples.
See also the self-heating test unit 10 of dangerous material inflammable solid shown in Figure 1, the sample receiver 13 and the temperature recorder controller (TRC) 14 that comprise hot air circulate formula baking oven 11, thermopair 12, opened upper end, but described sample receiver 13 hangs on the baking oven center by being located at the load-bearing of hot air circulate formula baking oven 11 baking oven top boards centers greater than the high temperature resistant hook 19 of 10kg; Thermopair 12 penetrates its inside from the outside of hot air circulate formula baking oven 11, and wherein an end of a thermopair 12 inserts in the sample receiver 13, and the other end links to each other with temperature recorder controller (TRC) 14; One end of another thermopair 12 is located in the hot air circulate formula baking oven 11, and the other end links to each other with temperature recorder controller (TRC) 14.Sample receiver 13 is cube structure, adopts stainless (steel) wire to make, the aperture 53 μ m of stainless (steel) wire wherein, density 270 holes, hole/inch2, and upper opening.The specification of sample receiver 13 has two kinds, and a kind of length of side is 25mm, and the another kind of length of side is 100mm.The volume of hot air circulate formula baking oven 11 is at least 9L, and the temperature control scope is a room temperature to 200 ℃ ± 2 ℃, and controllable temperature is in 100 ℃ ± 2 ℃, 120 ℃ ± 2 ℃ or 140 ± 2 ℃.The front apron glass of hot air circulate formula baking oven 11 is implosion guard.2 thermopairs 12 for example can be that diameter is chromel-alumel thermopair (Chromel-Alumel thermocouple) of 0.3mm, and temperature-measuring range comprises 100-300 ℃ at least, precision ± 1～2 ℃.Temperature recorder controller (TRC) 14 can write down the temperature of sample and the temperature curve and the time of hot air circulate formula baking oven 11 simultaneously.Temperature recorder controller (TRC) 14 can also can be analog for digital.Temperature variation that can dynamically recording chromel-alumel couple 12 is monitored in 24 hours.
The top of described sample receiver 13 is provided with the container cover 15 that is used to seal.Container cover 15 adopts stainless (steel) wire, its density 28 holes, hole/inch2, and aperture 595 μ m, size is more bigger than the opening of sample container 13.Passable like this avoid the influence of air circulation to measuring in the experimentation.
Described self-heating test unit 10 also comprises jar 16, and jar 16 is located in the hot air circulate formula baking oven 11 and the periphery of sample receiver 13.Jar 16 is of a size of the stainless steel guard of 150 * 150 * 250mm, density 28 holes, hole/inch2, and aperture 595 μ m can better avoid the influence of air circulation to measuring in the experimentation like this.
Described self-heating test unit 10 also comprises signal output device 17, and signal output device 17 links to each other with temperature recorder controller (TRC) 14.Signal output device 17 is semi-automatic/manually bimodulus control.
Described signal output device 17 comprises at least and is used to the warning input block setting the temperature input block of detected temperatures and be used to set alarm parameters, can free design temperature and time parameter.
Described self-heating test unit 10 also comprises safety alarm 18, and safety alarm 18 links to each other with chromel-alumel couple 12.When chromel-alumel couple 12 temperature of specimen surpass 200 ℃, or report to the police when exceeding 60 ℃ than 12 temperature of the chromel-alumel couple in the baking oven, equipment cuts off the power supply automatically simultaneously.
According to the requirement of GB/T 21612-2008 " the dangerous material inflammable solid is from thermal test method ", the enforcement of self-heating test unit 10 of the present invention mainly may further comprise the steps:
1, the powdery of test substance or graininess sample are put into sample receiver 13, fill to the edge of sample receiver 13 and pat several times.Sink as sample, continue to add sample, behind the sample heap height, edging scabbles, and sample receiver 13 usefulness jars 16 are covered, and hangs over the baking oven center.
2, hot air circulate formula baking oven 11 temperature are elevated to 140 ℃, and keep 24 hours continuous recording specimen temperatures and oven temperature.
3, getting the length of side is that the cuboid sample of 100mm carries out the test first time under 140 ℃ of conditions, observes sample and specimen temperature exceeds 60 ℃ than oven temperature phenomenon whether occurs in 24 hours.If above-mentioned phenomenon do not occur, then stop test.If above-mentioned phenomenon occurs, the cuboid sample of then getting the length of side and be 25mm carries out test second time under 140 ℃ of conditions, and whether the observation sample above-mentioned phenomenon occurs.
If 4 the experimental phenomena in above-mentioned the 3rd step do not occur, then select test temperature according to the Different Package condition of material in transportation, getting the length of side is the cuboid sample continuation test of 100mm, can observation above-mentioned phenomenon occur:
1) if material will be at volume greater than 0.45m
3, less than 3m
3Container in transport, test temperature is made as 120 ℃;
2) if material will be at volume less than 0.45m
3Container in transport, test temperature is made as 100 ℃.
5, above-mentioned test result is carried out record by temperature recorder controller (TRC) 14, and this temperature recorder controller (TRC) 14 temperature variation that dynamically recording chromel-alumel couple 12 is monitored in 24 hours also can write down specimen temperature and oven temperature curve and time simultaneously.
6, carry out in the process of the test at sample, if chromel-alumel couple 12 temperature surpass 200 ℃ in the sample, or when exceeding 60 ℃ than 12 temperature of the chromel-alumel couple in the baking oven, then safety alarm 18 can start automatically and reports to the police, outage simultaneously, and test stops.
The main operational steps of self-heating test unit 10 of the present invention is as follows:
1, energized.
2, setting detection time on the guidance panel of signal output device 17, for example is 24 hours.
3, after treating " temperature control i " " temperature control ii " displays temperature value, by " ▲
" key assignments " temperature control i " (detected temperatures) and " temperature control ii " (alarm temperature).
4, the sample receiver 13 of earlier sample being packed into is filled in the rustless steel container cover 16 of again sample receiver 13 being packed into to the limit.
5, open the chamber door of hot air circulate formula baking oven 11, with the thermopair 12 insertion sample centers of detection alarm temperature.Whole sample receiver 13 is placed hot air circulate formula baking oven 11 centers, and then close oven door.
6, by " fan starting " button of hot air circulate formula baking oven 11, blower fan 21 is started working.
7, by " execution " button, temperature heater 20 beginning heat temperature raisings under the control of temperature regulator 22.Timer begins to clock.
8, when detection time of arriving 24 hours or sample generation autothermal reaction, safety alarm 18 is reported to the police automatically.
9, press " report to the police contact " button on the guidance panel, warning stops.
10,, stop heating by " stopping " button of hot air circulate formula baking oven 11.
11, cut off the electricity supply.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating purpose of the present invention, and be not as limitation of the invention, as long as in essential scope of the present invention, all will drop in the scope of claim of the present invention variation, the modification of the above embodiment.
Claims (7)
1. the self-heating test unit of a dangerous material inflammable solid is characterized in that,
Comprise the sample receiver and the temperature recorder controller (TRC) of hot air circulate formula baking oven, thermopair, opened upper end, described sample receiver is located at the center of hot air circulate formula baking oven; Thermopair penetrates its inside from the outside of hot air circulate formula baking oven, and wherein an end of a thermopair inserts in the sample receiver, and the other end links to each other with temperature recorder controller (TRC); One end of another thermopair is located in the hot air circulate formula baking oven, and the other end links to each other with temperature recorder controller (TRC).
2. self-heating test unit as claimed in claim 1 is characterized in that,
The top of described sample receiver is provided with the container cover that is used to seal.
3. self-heating test unit as claimed in claim 1 is characterized in that,
Described self-heating test unit also comprises jar, and jar is located in the hot air circulate formula baking oven and the periphery of sample receiver.
4. self-heating test unit as claimed in claim 1 is characterized in that,
Described self-heating test unit also comprises signal output device, and signal output device links to each other with temperature recorder controller (TRC).
5. self-heating test unit as claimed in claim 4 is characterized in that,
Described signal output device comprises at least and is used to the warning input block setting the temperature input block of detected temperatures and be used to set alarm parameters.
6. self-heating test unit as claimed in claim 1 is characterized in that,
The front apron glass of described hot air circulate formula baking oven is implosion guard.
7. as each described self-heating test unit in the claim 1 to 6, it is characterized in that,
Described self-heating test unit also comprises safety alarm, and safety alarm links to each other with thermopair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010124384 CN102192924A (en) | 2010-03-15 | 2010-03-15 | Self-heating test device for flammable solids of dangerous materials |
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|---|---|---|---|
| CN 201010124384 CN102192924A (en) | 2010-03-15 | 2010-03-15 | Self-heating test device for flammable solids of dangerous materials |
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| CN102192924A true CN102192924A (en) | 2011-09-21 |
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| CN 201010124384 Pending CN102192924A (en) | 2010-03-15 | 2010-03-15 | Self-heating test device for flammable solids of dangerous materials |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507631A (en) * | 2011-10-19 | 2012-06-20 | 中国石油化工股份有限公司 | Solid autoignition temperature tester and test method thereof |
| CN103969281A (en) * | 2014-04-11 | 2014-08-06 | 中国石油化工股份有限公司 | Device for rapidly screening self-heating danger of chemicals |
| CN105021652A (en) * | 2015-07-31 | 2015-11-04 | 中山大学 | Self-heating experimental simulation device for combustible solids |
| CN105116012A (en) * | 2015-10-13 | 2015-12-02 | 国家安全生产监督管理总局化学品登记中心 | Test device for testing self-heating of substance with low melting point |
| CN107290387A (en) * | 2017-06-22 | 2017-10-24 | 广西出入境检验检疫局危险品检测技术中心 | The method that dangerous goods in solid form combustibility or explosion property are tested in vacuum environment |
| CN105301045B (en) * | 2015-10-13 | 2017-12-12 | 国家安全生产监督管理总局化学品登记中心 | Method of testing for thick liquid and low melting point solid self-heating property |
| CN109387539A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | Mutability is the solid of liquid from thermal hazard test method |
| CN109991372A (en) * | 2019-03-26 | 2019-07-09 | 陈曦 | Small all-in-one dangerization danger waste classifying calibration method and equipment |
| CN110726753A (en) * | 2018-07-16 | 2020-01-24 | 广州合成材料研究院有限公司 | Self-heating material experimental device |
| CN113484363A (en) * | 2021-06-29 | 2021-10-08 | 重庆长安新能源汽车科技有限公司 | Test device and method for simulating internal heating of controller |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507631A (en) * | 2011-10-19 | 2012-06-20 | 中国石油化工股份有限公司 | Solid autoignition temperature tester and test method thereof |
| CN103969281A (en) * | 2014-04-11 | 2014-08-06 | 中国石油化工股份有限公司 | Device for rapidly screening self-heating danger of chemicals |
| CN105021652A (en) * | 2015-07-31 | 2015-11-04 | 中山大学 | Self-heating experimental simulation device for combustible solids |
| CN105116012A (en) * | 2015-10-13 | 2015-12-02 | 国家安全生产监督管理总局化学品登记中心 | Test device for testing self-heating of substance with low melting point |
| CN105301045B (en) * | 2015-10-13 | 2017-12-12 | 国家安全生产监督管理总局化学品登记中心 | Method of testing for thick liquid and low melting point solid self-heating property |
| CN107290387A (en) * | 2017-06-22 | 2017-10-24 | 广西出入境检验检疫局危险品检测技术中心 | The method that dangerous goods in solid form combustibility or explosion property are tested in vacuum environment |
| CN107290387B (en) * | 2017-06-22 | 2019-11-22 | 广西出入境检验检疫局危险品检测技术中心 | The method of dangerous goods in solid form combustibility or explosion property is tested in vacuum environment |
| CN109387539A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | Mutability is the solid of liquid from thermal hazard test method |
| CN110726753A (en) * | 2018-07-16 | 2020-01-24 | 广州合成材料研究院有限公司 | Self-heating material experimental device |
| CN109991372A (en) * | 2019-03-26 | 2019-07-09 | 陈曦 | Small all-in-one dangerization danger waste classifying calibration method and equipment |
| CN113484363A (en) * | 2021-06-29 | 2021-10-08 | 重庆长安新能源汽车科技有限公司 | Test device and method for simulating internal heating of controller |
| CN113484363B (en) * | 2021-06-29 | 2023-05-23 | 重庆长安新能源汽车科技有限公司 | Test device and method for simulating internal heating of controller |
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Application publication date: 20110921 |