CN102507631A - Solid autoignition temperature tester and test method thereof - Google Patents
Solid autoignition temperature tester and test method thereof Download PDFInfo
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- CN102507631A CN102507631A CN2011103185646A CN201110318564A CN102507631A CN 102507631 A CN102507631 A CN 102507631A CN 2011103185646 A CN2011103185646 A CN 2011103185646A CN 201110318564 A CN201110318564 A CN 201110318564A CN 102507631 A CN102507631 A CN 102507631A
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Abstract
The invention relates to a tester for testing and analyzing solid autoignition temperature and a test method of the tester, belonging to the field of fuel testing and analyzing equipment and the method. When a tested substance is determined to reach setting temperature by self-heating, the autoignition temperature of a sample is obtained through temperature of a resistor furnace cavity; after the tester and the testing method of the tester are designed and planned, autoignition temperature test for samples, such as mancozeb, sulphur, sodium xanthate, active carbon, pulverized coal, wood, mosquito-repellent incense sheet and the like is implemented; the using condition of the device in testing is steady, so autoignition temperature of solid substances is conveniently and correctly tested; and the device can meet the requirement on testing autoignition danger of solid substances, required by research units engaging in researching chemicals damage, all institutions engaging in managing and testing dangerous chemicals, all chemical industry enterprises and safety supervision, etc.
Description
Technical field
The invention belongs to test and the analytical equipment and the method field of fuel, specifically, relate to a kind of test instrument and test method thereof that is used for the test of solid self-ignition temperature and analyzes.
Background technology
For chemical products, its self-ignition temperature is low more, and is fiery dangerous just big more; Therefore, industrial chemicals all should carry out the isoparametric mensuration of self-ignition temperature before producing, store and transporting, otherwise may lead to major accident; For this reason, need be a kind of simple and reasonable, easy to use and reliable; Suitable solid self-ignition temperature testing equipment and the test method thereof of test solid-like amount satisfies the R&D institution that is engaged in chemicals harm research, is engaged in the various mechanisms of hazardous chemical management and test; Various chemical enterprises, and demand that the solid matter self-ignition fatalness is tested such as the mechanism that need test the solid matter self-ignition fatalness such as safety monitor.
Summary of the invention
The present invention provides a kind of solid self-ignition temperature test instrument and test method thereof; Temperature when reaching design temperature through measuring measured matter through self-heating in the resistance furnace furnace chamber obtains the self-ignition temperature of sample; After this testing equipment and test method design construction thereof are accomplished; Successively carried out the test of sample self-ignition temperatures such as Mancozeb, sulphur, sodium xanthogenate, activated charcoal, coal dust, timber, anti-mosquito incense sheet, the device operating position is stable in the test, can make things convenient for the self-ignition temperature of testing solid matter accurately; Can satisfy the R&D institution that is engaged in chemicals harm research; Be engaged in the various mechanisms of hazardous chemical management and test, various chemical enterprises, and demand that the solid matter self-ignition fatalness is tested such as the mechanism that need test the solid matter self-ignition fatalness such as safety monitor.
The technical scheme that the present invention adopted is:
Solid self-ignition temperature test instrument comprises resistance furnace, temperature control system and sample receiver, and said resistance furnace is made up of furnace shell and burner hearth; Be provided with between said furnace shell and the burner hearth by heat-insulating material and fill the thermal insulating warm-keeping layer that forms, be provided with the resistance wire that is coiling in the silk groove in the said burner hearth outside, the bottom of said its burner hearth of resistance furnace is provided with pedestal; Said sample receiver top is provided with opening; Said resistance furnace top is provided with lid, and said lid is provided with the hole, is provided with the thermopair of insertion in the said hole; The other end of said thermopair is inserted in the sample receiver, and said temperature control system is connected with resistance furnace through data line.
Said temperature control system is made up of the microcomputer that is provided with temperature control program.
Said sample receiver is the stainless (steel) wire matter cube structure that the top is provided with opening.
The case structure of the furnace shell of said resistance furnace for adopting the sheet steel cold-working to process; Its physical dimension is 552mm * 340mm * 538mm; The set lid in its top is a detachable lid; Said hole is arranged on the lid midway, the cylindrical structure of the burner hearth of said resistance furnace for adopting carbofrax material to process, and its inside dimension is Φ 100mm * 150mm; With the burner hearth vertical structure of pedestal for adopting silicon carbide material to process that said resistance furnace bottom is set, the set opening size in said sample receiver top is Φ 0.045mm.
The furnace shell rated temperature of said resistance furnace is 800 ℃, its burner hearth internal temperature homogeneity is controlled to be ± and 1.5 ℃.
Said thermopair is a K type thermopair.
The functional unit that said temperature control system is provided with overtemperature alarm and stops automatically heating.Its effect is when specimen temperature surpasses the security settings temperature, and the controlling resistance stove stops heating.
Said its test method of solid self-ignition temperature test instrument comprises the steps:
The first step; Place sample: sample is filled up sample receiver, and knock gently simultaneously, filled up fully so that more sample is received in until sample receiver; Then the lid of resistance furnace is opened; The sample receiver that at room temperature will fill up sample is placed on the pedestal, top cover is built again, and at last the opening of thermopair through hole on the lid and sample receiver top is extend into the sample receiver center of filling up sample;
Second step, default control program: inner heating rate and the design temperature of preset resistance stove burner hearth in temperature control system;
In the 3rd step, begin test: the temperature of resistance furnace begins to rise to design temperature according to preset heating rate, shows in real time simultaneously through temperature data in the temperature program continuous recording burner hearth and specimen temperature data, and with its form with curve map;
The 4th step, record test figure and result: check history curve and access furnace temperature and specimen temperature record according to the time interval that burner hearth temperature inside when finding sample to reach design temperature through self-heating is the self-ignition temperature of sample with the form of text.
Said its test method of solid self-ignition temperature test instrument, in the default control program step, the inner heating rate of resistance furnace burner hearth is made as 0.5 ℃/minute, and design temperature is 400 ℃.
Said its test method of solid self-ignition temperature test instrument, in record test figure and the result step, the time interval is got 10 seconds minimum interval value.
Compared with prior art, advantage of the present invention and good effect are: solid self-ignition temperature test instrument of the present invention and test method thereof, and its testing equipment is simple and reasonable; Easy to use and reliable, test solid-like amount is suitable, and the test method step is reasonable; The result is accurate; Convenient and safe, this testing equipment and test method design construction thereof have successively carried out the test of sample self-ignition temperatures such as Mancozeb, sulphur, sodium xanthogenate, activated charcoal, coal dust, timber, anti-mosquito incense sheet after accomplishing; The device operating position is stable in the test; Can make things convenient for the self-ignition temperature of testing solid matter accurately, can satisfy the R&D institution that is engaged in chemicals harm research, be engaged in the various mechanisms of hazardous chemical management and test; Various chemical enterprises, and demand that the solid matter self-ignition fatalness is tested such as the mechanism that need test the solid matter self-ignition fatalness such as safety monitor.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Fig. 1 is a solid self-ignition temperature test instrument structural representation of the present invention;
Fig. 2 is a sample receiver deployed configuration synoptic diagram;
Fig. 3 is the temperatur-timel curve figure of the test figure of anti-mosquito incense sheet.
Fig. 4 is the temperatur-timel curve figure of the test figure of coal dust.
Fig. 5 is the temperatur-timel curve figure of the test figure of wood activated charcoal.
Fig. 6 is the temperatur-timel curve figure of the test figure of sodium hydrosulfite.
Among the figure, 1 is resistance furnace, and 2 is lid, and 3 and 5 is thermopair, and 4 is sample receiver, and 6 is pedestal, and 7 is microcomputer, and 8 is power supply, and 9 is data line.
Embodiment
Embodiment 1
To shown in Figure 3, solid self-ignition temperature test instrument comprises resistance furnace, temperature control system and sample receiver like Fig. 1; Said resistance furnace is made up of furnace shell and burner hearth, is provided with between said furnace shell and the burner hearth by heat-insulating material and fills the thermal insulating warm-keeping layer that forms, and is provided with the resistance wire that is coiling in the silk groove in the said burner hearth outside; The bottom of said its burner hearth of resistance furnace is provided with pedestal, and said sample receiver top is provided with opening, and said resistance furnace top is provided with lid; Said lid is provided with the hole; Be provided with the thermopair of insertion in the said hole, the other end of said thermopair is inserted in the sample receiver, and said temperature control system is connected with resistance furnace through data line; Said temperature control system is made up of the microcomputer that is provided with temperature control program; Said sample receiver is the stainless (steel) wire matter cube structure that the top is provided with opening; The case structure of the furnace shell of said resistance furnace for adopting the sheet steel cold-working to process; Its physical dimension is 552mm * 340mm * 538mm; The set lid in its top is a detachable lid; Said hole is arranged on the lid midway, the cylindrical structure of the burner hearth of said resistance furnace for adopting carbofrax material to process, and its inside dimension is Φ 100mm * 150mm; With the burner hearth vertical structure of pedestal that said resistance furnace bottom is set for adopting silicon carbide material to process, the set opening size in said sample receiver top is Φ 0.045mm; The furnace shell rated temperature of said resistance furnace is 800 ℃, its burner hearth internal temperature homogeneity is controlled to be ± and 1.5 ℃; Said thermopair is a K type thermopair; The functional unit that said temperature control system is provided with overtemperature alarm and stops automatically heating.
Said its test method of solid self-ignition temperature test instrument comprises the steps:
The first step; Place sample: the sample anti-mosquito incense sheet is filled up sample receiver, and knock gently simultaneously, filled up fully so that more sample is received in until sample receiver; Then the lid of resistance furnace is opened; The sample receiver that at room temperature will fill up sample is placed on the pedestal, top cover is built again, and at last the opening of thermopair through hole on the lid and sample receiver top is extend into the sample receiver center of filling up sample;
In second step, the default control program: to be 0.5 ℃/minute be 400 ℃ with design temperature to the inner heating rate of preset resistance stove burner hearth in temperature control system;
In the 3rd step, begin test: the temperature of resistance furnace begins to rise to design temperature according to preset heating rate, shows in real time simultaneously through temperature data in the temperature program continuous recording burner hearth and specimen temperature data, and with its form with curve map;
The 4th step; Record test figure and result: check history curve and access furnace temperature and specimen temperature record according to 10 seconds minimum interval value with the form of text; Burner hearth temperature inside when finding sample to reach design temperature through self-heating; Be the self-ignition temperature of sample, the self-ignition temperature of anti-mosquito incense sheet is 184.6 ℃.
Embodiment 2
Like Fig. 1, Fig. 2 and shown in Figure 4, with embodiment 1, different is in the placement sample step, the sample coal dust to be filled up sample receiver; In record test figure and the result step, the self-ignition temperature of anti-mosquito incense sheet is 162.9 ℃.
Embodiment 3
Like Fig. 1, Fig. 2 and shown in Figure 5, with embodiment 1, different is in the placement sample step, the sample wood activated charcoal to be filled up sample receiver; In record test figure and the result step, the self-ignition temperature of anti-mosquito incense sheet is 245.6 ℃.
Like Fig. 1, Fig. 2 and shown in Figure 6, with embodiment 1, different is in the placement sample step, the sample wood activated charcoal to be filled up sample receiver; In record test figure and the result step, the self-ignition temperature of anti-mosquito incense sheet is 154.7 ℃.
In addition, solid self-ignition temperature test instrument of the present invention should at first carry out preliminary judgement to the danger of sample to be tested before use, and explosive reaches the sample that contacts the meeting spontaneous combustion at normal temperatures with air and should not adopt it to make an experiment.
Obviously, the above embodiment of the present invention only be for clearly the present invention is described and is done for example, and be not to be qualification to embodiment of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here can't give exhaustive to all embodiments.Everyly belong to the row that conspicuous variation that technical scheme of the present invention extends out or change still are in protection scope of the present invention.
Claims (10)
1. solid self-ignition temperature test instrument comprises resistance furnace, temperature control system and sample receiver, it is characterized in that: said resistance furnace is made up of furnace shell and burner hearth; Be provided with between said furnace shell and the burner hearth by heat-insulating material and fill the thermal insulating warm-keeping layer that forms, be provided with the resistance wire that is coiling in the silk groove in the said burner hearth outside, the bottom of said its burner hearth of resistance furnace is provided with pedestal; Said sample receiver top is provided with opening; Said resistance furnace top is provided with lid, and said lid is provided with the hole, is provided with the thermopair of insertion in the said hole; The other end of said thermopair is inserted in the sample receiver, and said temperature control system is connected with resistance furnace through data line.
2. solid self-ignition temperature test instrument according to claim 1, it is characterized in that: said temperature control system is made up of the microcomputer that is provided with temperature control program.
3. solid self-ignition temperature test instrument according to claim 1 is characterized in that: said sample receiver is the stainless (steel) wire matter cube structure that the top is provided with opening.
4. solid self-ignition temperature test instrument according to claim 1; It is characterized in that: the case structure of the furnace shell of said resistance furnace for adopting the sheet steel cold-working to process; Its physical dimension is 552mm * 340mm * 538mm, and the set lid in its top is a detachable lid, and said hole is arranged on the lid midway; The cylindrical structure of the burner hearth of said resistance furnace for adopting carbofrax material to process; Its inside dimension is Φ 100mm * 150mm, with the burner hearth vertical structure of pedestal that said resistance furnace bottom is set for adopting silicon carbide material to process, and the set opening size in said sample receiver top is Φ 0.045mm.
5. solid self-ignition temperature test instrument according to claim 4 is characterized in that: the furnace shell rated temperature of said resistance furnace is 800 ℃, its burner hearth internal temperature homogeneity is controlled to be ± and 1.5 ℃.
6. solid self-ignition temperature test instrument according to claim 1 is characterized in that: said thermopair is a K type thermopair.
7. solid self-ignition temperature test instrument according to claim 1 is characterized in that: the functional unit that said temperature control system is provided with overtemperature alarm and stops automatically heating.Its effect is when specimen temperature surpasses the security settings temperature, and the controlling resistance stove stops heating.
8. according to any its test method of the described solid self-ignition temperature of claim test instrument of claim 1 to 7, it is characterized in that: comprise the steps:
The first step; Place sample: sample is filled up sample receiver, and knock gently simultaneously, filled up fully so that more sample is received in until sample receiver; Then the lid of resistance furnace is opened; The sample receiver that at room temperature will fill up sample is placed on the pedestal, top cover is built again, and at last the opening of thermopair through hole on the lid and sample receiver top is extend into the sample receiver center of filling up sample;
Second step, default control program: inner heating rate and the design temperature of preset resistance stove burner hearth in temperature control system;
In the 3rd step, begin test: the temperature of resistance furnace begins to rise to design temperature according to preset heating rate, shows in real time simultaneously through temperature data in the temperature program continuous recording burner hearth and specimen temperature data, and with its form with curve map;
The 4th step, record test figure and result: check history curve and access furnace temperature and specimen temperature record according to the time interval that burner hearth temperature inside when finding sample to reach design temperature through self-heating is the self-ignition temperature of sample with the form of text.
9. its test method of solid self-ignition temperature test instrument according to claim 8 is characterized in that: in the default control program step, the inner heating rate of resistance furnace burner hearth is made as 0.5 ℃/minute, and design temperature is 400 ℃.
10. its test method of solid self-ignition temperature test instrument according to claim 8 is characterized in that: in record test figure and the result step, the time interval is got 10 seconds minimum interval value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103185646A CN102507631A (en) | 2011-10-19 | 2011-10-19 | Solid autoignition temperature tester and test method thereof |
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| CN2011103185646A CN102507631A (en) | 2011-10-19 | 2011-10-19 | Solid autoignition temperature tester and test method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872303A (en) * | 2018-06-07 | 2018-11-23 | 广东工业大学 | A kind of spontaneous combustion curve detection system of self-heating substance |
| CN112083038A (en) * | 2019-06-12 | 2020-12-15 | 株式会社岛津制作所 | Spontaneous combustion test device |
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| CN101000332A (en) * | 2006-12-19 | 2007-07-18 | 煤炭科学研究总院重庆分院 | Device for investigating coal self-combustion tendentiousness based on low temp oxidation oxygen consumption |
| CN102042994A (en) * | 2010-10-28 | 2011-05-04 | 西安近代化学研究所 | Temperature test device for ignition point of explosive |
| 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 |
| CN202351196U (en) * | 2011-10-19 | 2012-07-25 | 中国石油化工股份有限公司 | Solid self-ignition temperature testing device |
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2011
- 2011-10-19 CN CN2011103185646A patent/CN102507631A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2342369Y (en) * | 1998-09-16 | 1999-10-06 | 中国科学院金属研究所 | High pressure, high temperature phase change test equipment |
| CN101000332A (en) * | 2006-12-19 | 2007-07-18 | 煤炭科学研究总院重庆分院 | Device for investigating coal self-combustion tendentiousness based on low temp oxidation oxygen consumption |
| 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 |
| CN102042994A (en) * | 2010-10-28 | 2011-05-04 | 西安近代化学研究所 | Temperature test device for ignition point of explosive |
| CN202351196U (en) * | 2011-10-19 | 2012-07-25 | 中国石油化工股份有限公司 | Solid self-ignition temperature testing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872303A (en) * | 2018-06-07 | 2018-11-23 | 广东工业大学 | A kind of spontaneous combustion curve detection system of self-heating substance |
| CN108872303B (en) * | 2018-06-07 | 2023-09-01 | 广东工业大学 | Spontaneous combustion curve detecting system of self-heating substance |
| CN112083038A (en) * | 2019-06-12 | 2020-12-15 | 株式会社岛津制作所 | Spontaneous combustion test device |
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Application publication date: 20120620 |