CN103969281A - Device for rapidly screening self-heating danger of chemicals - Google Patents
Device for rapidly screening self-heating danger of chemicals Download PDFInfo
- Publication number
- CN103969281A CN103969281A CN201410146396.0A CN201410146396A CN103969281A CN 103969281 A CN103969281 A CN 103969281A CN 201410146396 A CN201410146396 A CN 201410146396A CN 103969281 A CN103969281 A CN 103969281A
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- Prior art keywords
- control box
- chemicals
- temperature control
- temperature
- test
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- 239000000126 substance Substances 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 title claims abstract description 21
- 238000012216 screening Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 34
- 239000013074 reference sample Substances 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 abstract 4
- 238000009529 body temperature measurement Methods 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to a device for rapidly screening self-heating danger of chemicals and mainly solves the problems that the screening speed is lower and the accuracy of results is low in the prior art. The device for rapidly screening the self-heating danger of chemicals comprises a temperature control box (5), test square cages (3), ventilation channels (7) and temperature measurement elements (2), wherein the test square cages (3) and the ventilation channels (7) are positioned in the temperature control box (5); an air inlet (6) is formed in the bottom of the temperature control box (5); the ventilation channels (7) penetrate through the temperature control box (5) in the longitudinal direction of the temperature control box (5); the test square cages (3) are respectively placed in the ventilation channels (7); at least two test square cages (2) are arranged in the temperature control box (5); one test square cage (3) is used for the placement of a reference sample; the rest test square cage(s) (3) is/are used for the placement of test samples. According to the technical scheme, the above problems are better solved, and the device can be used for rapidly screening the self-heating danger of the chemicals.
Description
Technical field
The present invention relates to a kind of chemicals from thermal hazard rapid screening device.
Background technology
According to the relevant regulations in " the United Nations's freight transportation recommendation---test method and standard ", chemicals material in heat test, the material (cuboid sample) of test need to be contained in the woven wire container that the length of side is 25 millimeters or 100 mm cube shapes, be to be exposed in air at 100 DEG C, 120 DEG C or 140 DEG C in environment temperature, determine whether material self-heating can occur, be the temperature of sample within a certain period of time, whether rise to higher than 60 DEG C of environment temperatures, if represent to occur self-heating higher than 60 DEG C of environment temperatures.
At present, what generally adopt carries out in a conventional oven from heat test, is heated and is carried out the environment temperature that simulation test specifies by baking oven.CN200410036212.1 discloses a kind of spontaneous heating hazard testing device for chemical articles, comprising: computing machine and display thereof, be provided with the digital control constant temperature case of master instrument.1～10 piece of platinum resistance probe of measuring chemical substance internal and external temperature is set in the finite space of this constant temperature oven, be electrically connected on respectively again monitoring device and recording instrument without paper, again respectively by converter communication interface, be connected to computing machine, and the chemical substance internal and external temperature signal monitoring is passed to computing machine and display thereof.The setting position of this probe in this case is to determine with the volume of sample, bearing mode, or effectively fixing, or the effectively movable volume at tested sample inside and appearance.
Summary of the invention
Technical matters to be solved by this invention is the problem that in prior art, breakneck acceleration is slow, result precision is not high, provides a kind of new chemicals from thermal hazard rapid screening device.This device from thermal hazard rapid screening, has that breakneck acceleration is very fast, the reliable advantage of result precision for chemicals.
For addressing the above problem, the technical solution used in the present invention is as follows: a kind of chemicals is from thermal hazard rapid screening device, comprise temperature control box (5), the side's of test cage (2), air communication channel (7) and temperature element (2), the side's of test cage (2), air communication channel (7) is all positioned at temperature control box (5), temperature control box (5) bottom is provided with air intake (6), air communication channel (7) is longitudinal through temperature control box (5) along temperature control box (5), the side's of test cage (2) is placed in air communication channel (7), in temperature control box (5), comprise at least two test side's cages (2), one of them places reference sample, all the other place test sample.
In technique scheme, preferably, described temperature element (2) is thermopair, is connected with control desk by wire (1).
In technique scheme, preferably, the heating rate of described temperature control box (5) is at 1～2K/min.
In technique scheme, preferably, described reference sample is graphite.
In technique scheme, preferably, described air velocity is 100～120 ls/h.
In technique scheme, preferably, when being heated to, in 350 DEG C of processes, when sample interior temperature exceedes reference temperature, to record environment temperature.If environment temperature, higher than initial temperature 80K, is thought and may be had self-heating property.
In technique scheme, preferably, described temperature control box (5) bottom is also provided with insulation filler.
The chemicals of this patent is applicable to the method for quick of chemicals self-heating property from thermal hazard rapid screening device, can shorten the qualification time of chemicals from thermal hazard, principle of the present invention is that chemicals to be measured and reference material are placed in test side's cage, and temperature programme, maintain the circulation of air, in the time that sample interior temperature exceedes reference temperature, record environment temperature.If environment temperature, higher than initial temperature 80K, is thought and may be had self-heating property.The technical requirement of the present invention aspect the quick test of chemicals self-heating property reached the requirement of chemicals self-heating property rapid screening test method in Verein Deutscher Ingenieure's " dangerous method of testing of dust ", obtained good technique effect.
Brief description of the drawings
Fig. 1 is the structural representation of device of the present invention.
1---thermocouple wire; 2---thermopair; 3---the side's of test cage; 4---insulation filler; 5---temperature control box 6---air intake; 7---air communication channel.
Below by embodiment, the invention will be further elaborated, but be not limited only to the present embodiment.
Embodiment
[embodiment 1]
Adopt chemicals of the present invention from thermal hazard rapid screening device.The self-heating property of filler test activated charcoal and metal magnesium powder sample simultaneously.Specific implementation process is as follows:
(1) reference sample graphite is placed in first side's of test cage; Testing sample activated charcoal is placed in second test side's cage, testing sample magnesium powder is placed in the 3rd test side's cage;
(2) heating rate is set at 1.5K/min, regulates air velocity to 110 liters per hour; Start heating schedule, be warming up to 350 DEG C;
(3) while being heated to 180 DEG C, the electric thermo-couple temperature of magnesium powder side cage exceeds the temperature of reference thermopair, records environment temperature, and environment temperature is higher than initial temperature 80K, and magnesium powder may have self-heating property;
(4) while being heated to 350 DEG C, the electric thermo-couple temperature of activated charcoal side's cage does not exceed reference electric thermo-couple temperature yet, and this activated carbon sample does not have self-heating property;
(5) close heat riser, the sample in the side's of cleaning cage.
Result of implementation is as shown in the table.
[comparative example]
According to the apparatus and method described in CN200410036212.1, the self-heating property of filler test activated charcoal and metal magnesium powder sample simultaneously.Result of implementation is as shown in the table.
Visible by above contrast, it is short that chemicals of the present invention has the test duration from thermal hazard rapid screening device, and advantage that can the multiple samples of synchronism detection, can improve chemicals effectively from thermal hazard testing efficiency.
Claims (7)
1. a chemicals is from thermal hazard rapid screening device, comprise temperature control box (5), the side's of test cage (2), air communication channel (7) and temperature element (2), the side's of test cage (2), air communication channel (7) is all positioned at temperature control box (5), temperature control box (5) bottom is provided with air intake (6), air communication channel (7) is longitudinal through temperature control box (5) along temperature control box (5), the side's of test cage (2) is placed in air communication channel (7), in temperature control box (5), comprise at least two test side's cages (2), one of them places reference sample, all the other place test sample.
2. chemicals, from thermal hazard rapid screening device, is characterized in that described temperature element (2) is thermopair, is connected with control desk by wire (1) according to claim 1.
3. chemicals, from thermal hazard rapid screening device, is characterized in that the heating rate of described temperature control box (5) is at 1～2K/min according to claim 1.
4. chemicals, from thermal hazard rapid screening device, is characterized in that described reference sample is graphite according to claim 1.
5. chemicals, from thermal hazard rapid screening device, is characterized in that described air velocity is 100～120 ls/h according to claim 1.
6. chemicals, from thermal hazard rapid screening device, is characterized in that when being heated to, in 350 DEG C of processes, when sample interior temperature exceedes reference temperature, record environment temperature according to claim 1.If environment temperature, higher than initial temperature 80K, is thought and may be had self-heating property.
7. chemicals, from thermal hazard rapid screening device, is characterized in that described temperature control box (5) bottom is also provided with insulation filler according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410146396.0A CN103969281B (en) | 2014-04-11 | 2014-04-11 | Device for rapidly screening self-heating danger of chemicals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410146396.0A CN103969281B (en) | 2014-04-11 | 2014-04-11 | Device for rapidly screening self-heating danger of chemicals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103969281A true CN103969281A (en) | 2014-08-06 |
| CN103969281B CN103969281B (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410146396.0A Active CN103969281B (en) | 2014-04-11 | 2014-04-11 | Device for rapidly screening self-heating danger of chemicals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103969281B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021652A (en) * | 2015-07-31 | 2015-11-04 | 中山大学 | Self-heating experimental simulation device for combustible solids |
| CN105352997A (en) * | 2015-10-13 | 2016-02-24 | 国家安全生产监督管理总局化学品登记中心 | Method for determining burning and explosion of dust via temperature-controllable ignition device |
| CN105987928A (en) * | 2015-02-11 | 2016-10-05 | 中国石油化工股份有限公司 | Chemical thermal decomposition fast tester |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5348596A (en) * | 1976-09-16 | 1978-05-02 | Dow Chemical Co | Measuring method and apparatus for self heating rate in chemical reaction |
| CN1603806A (en) * | 2004-11-03 | 2005-04-06 | 中国石油化工股份有限公司 | Spontaneous heating hazard testing device for chemical articles |
| CN101196484A (en) * | 2006-12-08 | 2008-06-11 | 中南大学 | Measuring device and method for dynamic self-heating rate of sulfide ore |
| CN102192924A (en) * | 2010-03-15 | 2011-09-21 | 中华人民共和国上海出入境检验检疫局 | Self-heating test device for flammable solids of dangerous materials |
-
2014
- 2014-04-11 CN CN201410146396.0A patent/CN103969281B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5348596A (en) * | 1976-09-16 | 1978-05-02 | Dow Chemical Co | Measuring method and apparatus for self heating rate in chemical reaction |
| CN1603806A (en) * | 2004-11-03 | 2005-04-06 | 中国石油化工股份有限公司 | Spontaneous heating hazard testing device for chemical articles |
| CN101196484A (en) * | 2006-12-08 | 2008-06-11 | 中南大学 | Measuring device and method for dynamic self-heating rate of sulfide ore |
| CN102192924A (en) * | 2010-03-15 | 2011-09-21 | 中华人民共和国上海出入境检验检疫局 | Self-heating test device for flammable solids of dangerous materials |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987928A (en) * | 2015-02-11 | 2016-10-05 | 中国石油化工股份有限公司 | Chemical thermal decomposition fast tester |
| CN105021652A (en) * | 2015-07-31 | 2015-11-04 | 中山大学 | Self-heating experimental simulation device for combustible solids |
| CN105352997A (en) * | 2015-10-13 | 2016-02-24 | 国家安全生产监督管理总局化学品登记中心 | Method for determining burning and explosion of dust via temperature-controllable ignition device |
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| Publication number | Publication date |
|---|---|
| CN103969281B (en) | 2017-01-25 |
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Address after: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Applicant after: Sinopec Corp. Applicant after: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Applicant before: Sinopec Corp. Applicant before: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. |
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