CN201917543U - CCD (charge coupled device) visual spontaneous ignition temperature tester - Google Patents
CCD (charge coupled device) visual spontaneous ignition temperature tester Download PDFInfo
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- CN201917543U CN201917543U CN2011200057675U CN201120005767U CN201917543U CN 201917543 U CN201917543 U CN 201917543U CN 2011200057675 U CN2011200057675 U CN 2011200057675U CN 201120005767 U CN201120005767 U CN 201120005767U CN 201917543 U CN201917543 U CN 201917543U
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Abstract
A CCD (charge coupled device) visual spontaneous ignition temperature tester belongs to the field of hazardous chemical detecting instruments and mainly solves problems of visualization of a spontaneous ignition temperature testing procedure and testing of the lowest temperature of cold flame generation. The CCD visual spontaneous ignition temperature tester comprises a control center, a testing system, a detecting system and a display system, the control center is connected with the testing system, the detecting system and the display system, a plane array CCD acquisition device of the detecting system is connected with the control center and feeds image and light intensity signals back to the control center, and a quantitative light intensity integration method is adopted to detect the spontaneous ignition temperature and the cold flame generation temperature of a matter. When in testing, the CCD visual spontaneous ignition temperature tester firstly tests target temperature and testing precision, automatically adds samples after the target temperature is achieved, detects whether spontaneous ignition occurs or not, automatically adjusts temperature for repeated testing until the spontaneous ignition temperature is tested, then gradually cools down afterwards, adds samples to detect cold flame, outputs a testing result by the aid of a computer after testing the lowest temperature of cold flame generation, and can print out the testing result. The CCD visual spontaneous ignition temperature tester can realize an integral automatic testing procedure, and is high in accuracy and valuable for detecting hazardous inflammable chemicals.
Description
Technical field
The utility model belongs to hazardous chemical detecting instrument field, is specifically related to the minimum temperature detecting instrument that a kind of liquid spontaneous ignition temperature and cool flame produce: the visual spontaneous ignition temperature analyzer of CCD.
Technical background
Spontaneous ignition temperature refers to material under atmospheric pressure, not by extra power such as spark or flame, the minimum temperature of spontaneous combustion takes place.That cool flame refers to that material occurs when being lower than self-ignition temperature is faint, nattier blue cold light or flame.
The minimum temperature that spontaneous ignition temperature and cool flame produce is an important indicator of ignition control compound risk assessment.Traditional spontaneous ignition temperature analyzer is the target setting temperature at first, temperature reach target temperature and stable after, with Dropwise 50 microlitre fluid sample in the flask of syringe in heating furnace, the visual observations flask interior, if in 10 minutes spontaneous combustion takes place, illustrate that then spontaneous ignition temperature is positioned at this below temperature, the cooling of manual adjustments temperature regulating device, if not taking place in 10 minutes, spontaneous combustion explanation spontaneous ignition temperature is not positioned at this more than temperature, the manual adjustments temperature regulating device heats up, and with the ear washing bulb exhaust steam of blowing in flask, measures then next time again, until spontaneous ignition temperature being determined in certain temperature range, get this temperature range intermediate value as the material spontaneous ignition temperature.
The spontaneous ignition temperature analyzer of market sale now is primarily aimed at operations such as the artificial application of sample, artificial judgment spontaneous ignition temperature of traditional spontaneous ignition temperature analyzer, artificial airs blowing and adjusts realization operating process robotization.But the subject matter of its existence is to realize the visual record of overall process, can't accurately measure the minimum temperature that cool flame produces, and is subjected to factor affecting such as device is aging and causes error with the automatic detection material spontaneous combustion of temperature sensing device meeting.
Utility model patent (CN2505835Y) discloses a kind of power plant fire resistant oil spontaneous ignition temperature detecting device, the sensor of its use is two stainless steel bars, when sample generation dieseling, the ion punch-through appears between the stainless steel bar, its signal is exported behind rectifying and wave-filtering, obtain spontaneous ignition temperature information by analysis, the spontaneous ignition temperature temperature that this detector detects is higher, and does not also report and can detect the cool flame occurrence temperature simultaneously.Utility model patent (CN201096736Y) also discloses a kind of Full Automatic Auto-ignition Point Measuring Apparatus, but unexposed type of sensor, also unexposedly can detect the cool flame occurrence temperature simultaneously.
Summary of the invention
The purpose of this utility model be for solve current spontaneous ignition temperature analyzer can't be visual, can't measure cool flame and can't avoid detecting problem such as error, a kind of operation automation is provided, detects the visual spontaneous ignition temperature analyzer that spontaneous ignition temperature and cool flame produce temperature of measuring: the visual spontaneous ignition temperature analyzer of CCD.
The visual spontaneous ignition temperature analyzer of a kind of CCD, it is characterized in that: comprise following four parts composition, it is control center, pilot system, detection system, display system, described detection system, control center connects pilot system, detection system, display system: the area array CCD collecting device of detection system connects control center, and the area array CCD collecting device feeds back to control center with image and light intensity signal, adopts the occurrence temperature that quantizes light intensity integral method detection material spontaneous ignition temperature and cool flame.
Control center connects temperature control, application of sample, collection, a plurality of systems of air blowing, and realizes control, timing and data input and output to equipment, test process is monitored in real time, is analyzed and handles, and realize the robotization of overall process.
Pilot system has assay flask and thermometric is arranged in insulation can, the insulation can, temp-controlling element, sample adding device, blowning installation.
Display system can show burning image in real time, quantize light intensity, probe temperature and time, and connects printer, and determination data is exported.
Sample adding device conical flask (4) is arranged in insulation can (8); Over against conical flask (4) top area array CCD capture card (2) is arranged above the insulation can (8), be provided with temperature thermocouple (3) in the insulation can (8), go up heating plate (5), side heating plate (6), end heating plate (7), down temperature-control heat couple (10), middle temperature-control heat couple (11), go up temperature-control heat couple (12), sample injector (13), scavenger system (14); Its control system is: control center (1) connects area array CCD capture card (2), temperature thermocouple (3), last heating plate (5), side heating plate (6), end heating plate (7), following temperature-control heat couple (10), middle temperature-control heat couple (11) respectively, goes up temperature-control heat couple (12), sample injector (13), scavenger system (14); Control center (1) connects computing machine (15), and computing machine connects printer (16).
Characteristics of the present utility model are: 1. the utility model instrument is made of a plurality of systems such as temperature control, application of sample, collection, air blowing, operation, demonstration, outputs, by unified control center's control, easy and simple to handle, measuring precision can regulate as required, application of sample pipe and temperature thermocouple go deep into conical flask inside, the accuracy height.2. spontaneous ignition temperature and cool flame are measured simultaneously, and after the system measurement spontaneous ignition temperature, temperature-controlling system reduces temperature automatically, and stable back drips liquid, and detection system detects whether produce cool flame, and the continuous several times cooling is measured, and detect cool flame and produce minimum temperature.3. adopt to quantize the generation of light intensity integral method detection material spontaneous combustion and cool flame, avoid the error at measurment that causes because of ageing equipment and environmental change, and images acquired in real time, to the further analysis of spontaneous combustion process, the measuring accuracy of raising spontaneous ignition temperature.4. control center is connected with computing machine, import sample message with computing machine, setup parameter, show each image information and corresponding temperature constantly, automatically to generate with time be horizontal ordinate, quantize the light intensity integration is that the broken line graph of ordinate changes with demonstration light intensity directly perceived, and finally producing minimum temperature and overall process time and each Measuring Time by document form output spontaneous ignition temperature temperature and cool flame, measurement result is by printer output.
Description of drawings
The composition synoptic diagram of the visual spontaneous ignition temperature analyzer of Fig. 1 CCD.
In Fig. 1: 1, control center and digital quantizer, 2, the area array CCD capture card, 3, temperature thermocouple, 4, conical flask, 5, go up heating plate, 6, the side heating plate, 7, end heating plate, 8, insulation can, 9, pillar, 10, following temperature-control heat couple, 11, middle temperature-control heat couple, 12, go up temperature-control heat couple, 13, sample injector, 14, scavenger system, 15, computing machine, 16, printer
The composition synoptic diagram of Fig. 2 computer controlling center.
The adjustment synoptic diagram of Fig. 3 spontaneous ignition temperature analyzer.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Equipment of the present utility model comprises: 1. control center, connect a plurality of systems such as temperature control, application of sample, collection, air blowing, and realization is monitored in real time, is analyzed and handle test process control, timing and the data input and output of equipment, the robotization of realization overall process; 2. pilot system contains insulation can, thermometric and temp-controlling element, sample adding device, blowning installation, assay flask; 3. detection system is used the area array CCD collecting device, connects control center, and image and light intensity signal are fed back to control center and make the burning judgement; 4. display system connects control center with computing machine, can show burning image in real time, quantize light intensity, probe temperature and time, and connect printer, and determination data is exported.
The concrete detailed structure of the visual spontaneous ignition temperature analyzer of a kind of CCD comprises following four parts composition, it is control center, pilot system, detection system, display system, described detection system, control center connects pilot system, detection system, display system: the area array CCD collecting device of detection system connects control center, the area array CCD collecting device feeds back to control center with image and light intensity signal, adopts the occurrence temperature that quantizes light intensity integral method detection material spontaneous ignition temperature and cool flame.
Control center connects temperature control, application of sample, collection, a plurality of systems of air blowing, and realizes control, timing and data input and output to equipment, test process is monitored in real time, is analyzed and handles, and realize the robotization of overall process.Pilot system has assay flask and thermometric is arranged in insulation can, the insulation can, temp-controlling element, sample adding device, blowning installation.Display system can show burning image in real time, quantize light intensity, probe temperature and time, and connects printer, and determination data is exported.
Sample adding device conical flask (4) is arranged in insulation can (8); Over against conical flask (4) top area array CCD capture card (2) is arranged above the insulation can (8), be provided with temperature thermocouple (3) in the insulation can (8), go up heating plate (5), side heating plate (6), end heating plate (7), down temperature-control heat couple (10), middle temperature-control heat couple (11), go up temperature-control heat couple (12), sample injector (13), scavenger system (14); Its control system is: control center (1) connects area array CCD capture card (2), temperature thermocouple (3), last heating plate (5), side heating plate (6), end heating plate (7), following temperature-control heat couple (10), middle temperature-control heat couple (11) respectively, goes up temperature-control heat couple (12), sample injector (13), scavenger system (14); Control center (1) connects computing machine (15), and computing machine connects printer (16).
Because adopt area array CCD intensity collection card detection material spontaneous combustion and cool flame, test need be carried out in dark surrounds.
Before the test, at first information such as input sample title in computing machine is convenient to classification analysis is carried out in test, the quantification light intensity integration that the area array CCD capture card gathers in this environment is set is " zero ", so that the light intensity variation that spontaneous combustion and cool flame are caused detects.By computer settings " mensuration spontaneous ignition temperature " and " measure spontaneous ignition temperature and cool flame and produce temperature " two kinds of patterns, and input initial target temperature T, spontaneous ignition temperature mensuration precision δ T
1Produce minimum temperature with cool flame and measure precision δ T
2, when not importing initial target temperature and measuring temperature, T=300 ℃ of system default initial target temperature measured T=1 ℃ of precision δ.
After beginning test, temperature-controlling system is warming up to initial target temperature automatically, after the conical flask internal temperature reaches target temperature and stablizes, when sample adding system drips fluid sample 100 μ l automatically, the CCD capture card begins real-time images acquired and quantizes light intensity, and the signal after will handling reaches control center, demonstrate at computing machine " time-quantification light intensity integration " broken line graph, and show and record realtime graphic, internal temperature and the time.If within 10 minutes, the integration that quantizes light intensity is undergone mutation, and then burning has taken place in expression, illustrates that spontaneous ignition temperature is positioned at below the Current Temperatures T, and then temperature-controlling system reduces temperature Δ T automatically
1If spontaneous combustion does not take place in the 10min, illustrate that then spontaneous ignition temperature is positioned at more than the temperature T, the temperature-controlling system temperature Δ T that raises automatically
1When double mensuration, a spontaneous combustion, once not during spontaneous combustion, spontaneous ignition temperature can be changed being defined in Δ T
1Within, Δ T is adjusted into Δ T
2=Δ T
1/ 2 carry out second takes turns mensuration.Repeat this process, until measuring temperature in error range, can accurately judge spontaneous ignition temperature, and write down from sample introduction to the time delay that spontaneous combustion takes place.Common system default Δ T
1=100.0 ℃, Δ T
2=50.0 ℃, Δ T
3=25.0 ℃
When selecting " measure spontaneous ignition temperature and cool flame and produce temperature " pattern, system carries out cool flame automatically and produces temperature measuring after measuring spontaneous ignition temperature.Because it is more lower slightly than spontaneous ignition temperature that cool flame produces minimum temperature, therefore system is a benchmark with the spontaneous ignition temperature of measuring, beginning reduces temperature gradually, drip 100 μ l fluid samples after reaching target temperature, the faint flame that cool flame produces can cause that the area array CCD detection system quantizes the light intensity integration and changes, detect whether produce cool flame by the CCD capture card, until the double t that is determined at
N-1Produce cool flame, at t
nDo not produce cool flame, then get (t
n+ t
N-1The minimum temperature that)/2 produce as the chemicals cool flame.
After measuring end, demonstrate spontaneous ignition temperature temperature, cool flame generation minimum temperature, mensuration T.T. and each application of sample to the time information such as (being ignition delay time) of burning by computing machine.Ignition delay time is measured not influence to spontaneous ignition temperature, but analysis has certain effect to physical hazard, therefore writes down ignition delay time and is convenient to material is further analyzed.Measurement result is also by printer output.
Claims (5)
1. visual spontaneous ignition temperature analyzer of CCD, it is characterized in that: comprise following four parts composition, it is control center, pilot system, detection system, display system, described detection system, control center connects pilot system, detection system, display system: the area array CCD collecting device of detection system connects control center, and the area array CCD collecting device feeds back to control center with image and light intensity signal, adopts the occurrence temperature that quantizes light intensity integral method detection material spontaneous ignition temperature and cool flame.
2. according to the visual spontaneous ignition temperature analyzer of the described CCD of claim 1, it is characterized in that: control center connects temperature control, application of sample, collection, a plurality of systems of air blowing, and realization is to control, timing and the data input and output of equipment, test process is monitored in real time, analyzed and handles, and realize the robotization of overall process.
3. according to the visual spontaneous ignition temperature analyzer of the described CCD of claim 1, it is characterized in that: pilot system has assay flask and thermometric is arranged in insulation can, the insulation can, temp-controlling element, sample adding device, blowning installation.
4. the visual spontaneous ignition temperature analyzer of CCD according to claim 1 is characterized in that: display system can show burning image in real time, quantize light intensity, probe temperature and time, and connects printer, and determination data is exported.
5. the visual spontaneous ignition temperature analyzer of CCD according to claim 1 is characterized in that: sample adding device conical flask (4) is arranged in insulation can (8); Over against conical flask (4) top area array CCD capture card (2) is arranged above the insulation can (8), be provided with temperature thermocouple (3) in the insulation can (8), go up heating plate (5), side heating plate (6), end heating plate (7), down temperature-control heat couple (10), middle temperature-control heat couple (11), go up temperature-control heat couple (12), sample injector (13), scavenger system (14); Its control system is: control center (1) connects area array CCD capture card (2), temperature thermocouple (3), last heating plate (5), side heating plate (6), end heating plate (7), following temperature-control heat couple (10), middle temperature-control heat couple (11) respectively, goes up temperature-control heat couple (12), sample injector (13), scavenger system (14); Control center (1) connects computing machine (15), and computing machine connects printer (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200057675U CN201917543U (en) | 2011-01-10 | 2011-01-10 | CCD (charge coupled device) visual spontaneous ignition temperature tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200057675U CN201917543U (en) | 2011-01-10 | 2011-01-10 | CCD (charge coupled device) visual spontaneous ignition temperature tester |
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| Publication Number | Publication Date |
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| CN201917543U true CN201917543U (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200057675U Expired - Fee Related CN201917543U (en) | 2011-01-10 | 2011-01-10 | CCD (charge coupled device) visual spontaneous ignition temperature tester |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175719A (en) * | 2011-01-10 | 2011-09-07 | 王利兵 | CCD visualization self-ignition point tester |
| CN104330518A (en) * | 2014-10-24 | 2015-02-04 | 公安部四川消防研究所 | Detection device of characteristic of smoldering and use method |
| RU2615034C2 (en) * | 2015-09-14 | 2017-04-03 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Башкирский государственный университет" | Method for determining flash point in closed crucible of petroleum oil fractions |
-
2011
- 2011-01-10 CN CN2011200057675U patent/CN201917543U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175719A (en) * | 2011-01-10 | 2011-09-07 | 王利兵 | CCD visualization self-ignition point tester |
| CN102175719B (en) * | 2011-01-10 | 2013-06-12 | 王利兵 | CCD visualization self-ignition point tester |
| CN104330518A (en) * | 2014-10-24 | 2015-02-04 | 公安部四川消防研究所 | Detection device of characteristic of smoldering and use method |
| CN104330518B (en) * | 2014-10-24 | 2016-04-13 | 公安部四川消防研究所 | Smoldering feature proving installation and using method |
| RU2615034C2 (en) * | 2015-09-14 | 2017-04-03 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Башкирский государственный университет" | Method for determining flash point in closed crucible of petroleum oil fractions |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20120110 |