CN107703252A - The device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument - Google Patents
The device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument Download PDFInfo
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- CN107703252A CN107703252A CN201711137141.8A CN201711137141A CN107703252A CN 107703252 A CN107703252 A CN 107703252A CN 201711137141 A CN201711137141 A CN 201711137141A CN 107703252 A CN107703252 A CN 107703252A
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- burning time
- oxygen index
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000001301 oxygen Substances 0.000 title claims abstract description 43
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 43
- 230000008859 change Effects 0.000 title claims abstract description 42
- 238000002485 combustion reaction Methods 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 25
- 230000003287 optical effect Effects 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010304 firing Methods 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 8
- 230000006399 behavior Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 208000000058 Anaplasia Diseases 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002789 length control Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
This application discloses the burning time for being used for recorded matter in a kind of oxygen index instrument and the device of light intensity change.Including photosensitive part and record system；Photosensitive part is the optional position that combustion barrel can be fixed on perforate；Record system includes timer, buzzer, optical-electrical converter, memory, single-chip microcomputer and touching display screen, optical-electrical converter can convert optical signals to electric signal, display screen can show that light intensity changes over time figure, and record system is placed in outside combustion barrel and connected with photosensitive part.The device of the application can record the burning time of material, after flame time and smoldering time in oxygen index instrument automatically, and they change in the light intensity of each combustion phases；The degree of accuracy of experiment is improved, reduces the labor intensity of experiment people；Burning time and variations in light by each stage in recorded matter combustion process, can auxiliary judgment material ignition quality, and from the upper reduction experiment process of the light intensity of record change, there is provided the repeatable experimental data consulted.
Description
Technical field
The application is the improvement for existing non-full-automatic oxygen index instrument, suitable for doing recorded matter oxygen index test
Burning time and light intensity change；The ignition quality of auxiliary judgment material, from the upper reduction experiment process of light intensity change of record, there is provided
The repeatable experimental data consulted；Reduce artificial timing error, improve experiment accuracy, reduce the labor intensity of experiment people；It is real
The record of the time of each combustion phases and light intensity change in existing oxygen index instrument.
Background technology
Because fire can bring huge potential safety hazard to the mankind in production and living, therefore some materials are before the use
The fire safety grade of national requirements must be reached, and many countries all promulgate mandatory technical regulation to material both at home and abroad
Fire resistance carries out pressure supervision, for example to for manufacturing furniture, factory building and construction material and upholstery etc. all
There is supervision.For fire protecting performance can not be up to standard be impermissible for selling, and can fire protecting performance up to standard can pass through the burning of material
Performance reflects.The oxygen index (OI) of measure material is exactly a kind of method for detecting material combustibility, material in oxygen index test
The indexs such as burning length, burning time are main content of examinations.When wherein using burning time as performance assessment criteria,《GB-
T2406.2-2009 plastics determine burning behavior with oxygen index method》Standard is with burning time 30s and flaming combustion (i.e. afterflame)
Time 180s is criterion, that is, after lighting 30s, flaming combustion time is more than 180s, then it is assumed that should be dropped in next step is tested
Low oxygen concentration, conversely, oxygen concentration should be improved in then being tested in next step when being less than 180s, until front and rear flaming combustion one twice
Secondary arrival 180s is once not up to 180s, during and the difference of oxygen concentration≤1.0% untill, draw primary oxygen concentration, then oxygen
Gas concentration is again that gradient finally repeats to do 5 experiments with 0.2%.Just use in full-automatic oxygen index instrument non-at present and light manually,
For the mode of manual time-keeping, manual time-keeping mainly by experimenter itself experience, because individual difference inevitably band messenger
For error, such as experimenter operates level, experimental skills, experiment experience, brings many uncertain factors, and it is accurate to influence experiment
Property and confidence level.The deficiencies of cumbersome, experiment labor intensity is big, and timing bothers simultaneously manually be present.The content of the invention is to existing
The non-full-automatic oxygen index instrument having, record and the repeatable improvement consulted in experimental data in burning time, realizes oxygen and refers to
The record of the time of each combustion phases and light intensity change in number instrument.
The content of the invention
The purpose of the application is to provide the device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument, should
Device can record burning time and each stage burning time and light intensity change automatically, reduce artificial when doing oxygen index test
Timing error, the ignition quality of auxiliary judgment material, from the upper reduction experiment process of light intensity change of record, there is provided repeatable to consult
Experimental data, reduce the labor intensity of experiment people, improve the accuracy of experiment；Realize rank of respectively being burnt in oxygen index instrument
The time of section and the record of light intensity change.
To achieve these goals, the application employs following technical scheme：
The device changed this application discloses a kind of burning time of recorded matter in oxygen index instrument and light intensity, including it is photosensitive
Part and record system；Photosensitive part is the sheet with perforate, for being connected with VELCRO or rope, is easy to be fixed on burning
The optional position of cylinder, photosensitive part is elastic, and fully to be contacted with combustion barrel, length and width control arrives 10cm, heat resisting temperature 5
At least ensure at 300 degrees Celsius.
The record system includes timer, buzzer, optical-electrical converter, memory, single-chip microcomputer and touching display screen,
Include timing display portion, encircled portion, beginning, end and output button on display screen；Timer record time and by data
Input single-chip microcomputer；Optical-electrical converter is connected with photosensitive part, and according to lighting, afterflame, glowing, the luminous intensity of three phases becomes
Change, luminous intensity signal is changed into electric signal, and by luminous intensity variations data input single-chip microcomputer.Whole light intensity becomes during experiment
Turn to：Indoor light intensity is mutated to light intensity is lighted, and light intensity is lighted after 30s and is changed into flaming combustion light intensity, the mutation of flaming combustion light intensity
To light intensity of glowing, light intensity of glowing is converted to indoor light intensity.
The data that single-chip microcomputer is passed to by timer, control timing display portion show that time, control buzzer reach
Sounded during burning time 30s and burning time 180s, play the purpose for reminding experimenter；Experimenter passes through point touching screen
On timing display portion, burning time and burning time can be set, single-chip microcomputer can be according to the time control buzzer of setting
Sound；The data that the light intensity that single-chip microcomputer is inputted by optical-electrical converter changes, draw light intensity in encircled portion and change over time
Figure, and change over time using light intensity the slope and burning time 30s of figure upper curve, automatic identification is lighted, afterflame, glows three
The individual stage, and mark out in encircled portion；Single-chip microcomputer is connected with memory, will test each phases-time and light intensity anaplasia at any time
Change figure storage in memory；Single-chip microcomputer also controls others on touch-screen to start, terminate and export button, and is responsible for response.
It is pointed out that basis《GB-T2406.2-2009 plastics determine burning behavior with oxygen index method》Regulation, oxygen refer to
The burning time of number measuring is flaming combustion time, and the present apparatus can both measure flaming combustion time, reach measurement material
Expect the purpose of oxygen index (OI), smoldering time, the ignition quality of auxiliary judgment material can also be measured, there is provided the number of full experiment process
According to；Record system is placed in outside combustion barrel and connected with photosensitive part, and output button is used for exporting burning time and light intensity change.
In the application embodiment, record system also has power line, master switch key and USB output interfaces, whole for controlling
The switch and output burning time and light intensity variation diagram of individual device.
Due to being using the beneficial effect of above technical scheme, the application：
The device of the burning time of the recorded matter of the application and light intensity change can record burning time, after flame time automatically
With smoldering time and the light intensity variation diagram of material combustion can be drawn, artificial timing error is reduced, improves the experiment degree of accuracy, is dropped
The labor intensity of low experiment people, realize and record each stage burning time and light intensity change function；Pass through recorded matter
Variations in light and the burning time in each stage in combustion process, can auxiliary judgment material ignition quality, and from the light of record
The strong upper reduction experiment process of change, there is provided the repeatable experimental data consulted.It is suitable for recording respectively when doing oxygen index test
The burning time of kind material and light intensity change, facilitate experimenter to analyze combustion phenomena, judgement material ignition quality, and repeat
Consult experimental data.
Brief description of the drawings
Fig. 1 is that the apparatus structure schematic diagram of the burning time of recorded matter and light intensity change is also this in the embodiment of the present application
The Figure of abstract of application.
Fig. 2 is burning time and the apparatus function flow chart of light intensity change of the application recorded matter.
1st, photosensitive part；2nd, record system；3rd, timing display portion；4th, encircled portion；5th, start button；6th, terminate to press
Button；7th, perforate；8th, button is exported；9th, USB interface；10th, master switch key；11st, timer；12nd, buzzer；13rd, optical-electrical converter；
14th, memory；15th, single-chip microcomputer；16th, touching display screen.
Embodiment
Below according to accompanying drawing, the present invention will be described in detail：
The recorded matter burning time of the application and the device of light intensity change.Including photosensitive part 1 and record system 2；Sense
Light part is the 7 of perforate, for being connected with VELCRO or rope, is easy to be placed on combustion barrel optional position；Record system includes meter
When device 11, buzzer 12, optical-electrical converter 13, memory 14, single-chip microcomputer 15, USB output interfaces 9, master switch key 10 and touch
Formula display screen 16, timing display portion 3, encircled portion 4, start button 5, the and of conclusion button 6 are included on touching display screen 16
Button 8 is exported, record system 2 is placed in outside combustion barrel and connected with photosensitive part 1.
It should be noted that present inventor for existing non-full-automatic oxygen index instrument automaticity it is not high,
Manual time-keeping is troublesome, accuracy is bad, can not be weighed without material combustion luminescence phenomenon in quantitative description experimentation and experimental data
The problem of check is read, it is proposed that the device of the burning time of above-mentioned recorded matter and light intensity change, be suitable for doing oxygen index test
The burning time of the various materials of Shi Jilu and light intensity change.The device connects power supply before ignition, opens master switch 10；Will sense
Combustion barrel is close in light part 1, fixes；Timing display portion 3 on point touching formula display screen 16, set burning time and combustion
Burn the time；Start button 5 before ignition-material on point touching formula display screen 16, the meeting timing of timing display portion 3, draws
Part 4 can show that light intensity changes over time figure；When reaching the respective settings time, buzzer 12 sounds, and reminder time reaches；It is real
The conclusion button 6 on point touching formula display screen 16 after terminating is tested, then preserves each phases-time and light intensity variation diagram, and under entrance
The preparatory stage of one experiment.So as to realize the burning time of recorded matter and light intensity change, facilitate analysis of material property and look into
Read experimental data.
The application is described in further detail below by specific embodiment and with reference to accompanying drawing.Following examples are only to this
Application is further described, and should not be construed as the limitation to the application.
Embodiment one
The combustibility detection means of this example is as shown in figure 1, including photosensitive part 1, record system 2；The flammability of this example
Energy detection means functional sequence is as shown in Figure 2.The photosensitive part 1 of this example is sensitive film, can sense the change of light intensity.Record system
2 are arranged at combustion barrel is connected with photosensitive part 1 outside, and each phases-time and light intensity variation diagram are tested for recording；Timing display part
Divide 3, timer 11 starts timing when clicking on start button 5, and shows the time in timing display portion 3；Encircled portion 4,
When clicking on start button 5, encircled portion 4 starts picture light intensity and changes over time figure；Start button 5, control start timing and picture
Figure button；Conclusion button 6, control stop timing and picture button；Perforate 7, photosensitive part is fixed for VELCRO or rope；It is defeated
Go out button 8, each stage burning time data and light intensity variation diagram are tested for exporting；USB interface 9, for connecting external storage
Equipment；Master switch 10, control the switch of whole device；Timer 11, for recording the time；Buzzer 12, tested for reminding
Personnel reach specified time；Optical-electrical converter 13, the optical signal that photosensitive part 1 gathers is converted into electric signal；Memory 14, use
The data and light intensity variation diagram of each stage burning time are tested in storage；Single-chip microcomputer 15, for controlling buzzer 12 to switch, light
The setting of time and burning time, on the touchscreen encircled portion draw light intensity change over time figure and mark each combustion phases,
8 buttons of other start buttons 5 on touching display screen 16, conclusion button 6 and output are controlled, and are responsible for response.Position is such as
Shown in figure.
By taking XZT-100A oxygen index measurers as an example, tape deck concrete operations flow is as follows：
(1) photosensitive part 1 is fixed on to the middle and upper part position of combustion barrel by VELCRO, opens master switch 10；
(2) timing display portion 3 is clicked on, ejects setting time dialog box, setting needs the time lighted and burnt；According to
《GB-T2406.2-2009 plastics determine burning behavior with oxygen index method》Regulation, this experiment are set as burning time 30s, burn
Time 180s.
(3) start button 5 is clicked on, now timing display portion 3 and encircled portion 4 start simultaneously at timing and picture, initially
Light intensity is indoor light intensity.
(4) material in combustion barrel is lighted, the light intensity variable signal that photosensitive part 1 inputs is converted into electricity by optical-electrical converter 13
Signal, and light intensity delta data is input to single-chip microcomputer 15, the control timer of single-chip microcomputer 15 is lighted timing and started, buzzing after 30s
The jingle bell of device 12 once, stops lighting, and after the flaming combustion time 180s of setting is reached, jingle bell, prompting are real again for buzzer 12
The person of testing reaches setting burning time, terminates until glowing, and when light intensity is initial indoor light intensity, or clicks on conclusion button 6
When, stop timing and picture, and each phases-time and light intensity variation diagram are preserved to memory 14, and enter the standard of next experiment
The standby stage；If 180s is not arrived in flaming combustion, buzzer 12 will not sound again, terminate until glowing, light intensity is first
During the indoor light intensity that begins, or during click conclusion button 6, stop timing and picture, and preserve each phases-time and light intensity variation diagram
To memory 14, into the preparatory stage of next experiment.Whole light intensity, which becomes, to be turned to：Indoor light intensity is mutated to lighting light intensity, 30s
After light light intensity and be changed into flaming combustion light intensity, flaming combustion light intensity is mutated to light intensity of glowing, and light intensity of glowing is converted to room light
By force；And the slope and burning time 30s of figure upper curve are changed over time according to light intensity, single-chip microcomputer 15 can automatic identification light, continue
Fire, glow three phases, and marked in light intensity changes over time figure.
(5) if flaming combustion time reaches 180s, experiment in next step should suitably reduce oxygen concentration, repeat step
(3)、(4)；Conversely, not up to 180s, then should properly increase oxygen concentration, repeat step (3), (4).Have twice until front and rear
Flame burning once reaches 180s and is once not up to 180s, during and the difference of oxygen concentration≤1.0% untill, it is dense to obtain primary oxygen
Degree；Then oxygen concentration is again that gradient finally repeats (3), (4) step 5 time with 0.2%, finally gives the multigroup oxygen of multigroup material
Concentration burning time and light intensity variation diagram.
(6) USB flash disk is inserted from USB interface 9, clicks on output button 8, burning time is copied and light intensity changes over time figure number
According to.
Can the burning time of recorded matter, continuous automatically by the burning time of the recorded matter of this example and light intensity changeable device
Fire the light intensity change of time, smoldering time and each stage substance combustion；It is accurate to record result, avoids people caused by manual time-keeping
For error, reduce the labour of experimenter, facilitate experimenter to analyze combustion phenomena, judgement material ignition quality, and
Repeat to consult experimental data.Be suitable for recording when doing oxygen index test with XZT-100A instruments various materials burning time and
Light intensity changes.
Above content is to combine the further description that specific embodiment is made to the application, it is impossible to assert this Shen
Specific implementation please is confined to these explanations.For the application person of an ordinary skill in the technical field, do not taking off
On the premise of conceiving from the application, some simple deduction or replace can also be made, should all be considered as belonging to the protection of the application
Scope.
Claims (7)
1. the device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument, including photosensitive part and record system
System, it is characterised in that：
The photosensitive part is the sheet with perforate, for being connected with VELCRO or rope, is easy to be fixed on appointing for combustion barrel
Meaning position；
The record system includes timer, buzzer, optical-electrical converter, memory, single-chip microcomputer and touching display screen, display
Include timing display portion, encircled portion, beginning, end and output button on screen.
2. the device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument according to claim 1, its
It is characterised by：Photosensitive part is elastic, can fully be contacted with combustion barrel；Length and width should control arrives 10cm 5；Heat resisting temperature is at least
Ensure at 300 degrees Celsius.
3. the device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument according to claim 1, its
It is characterised by：Timer can record the time and show that timer is also connected with buzzer in timing display portion, work as the point of arrival
When firing time and burning time, buzzer sounds.
4. the device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument according to claim 1, its
It is characterised by：Photoelectric conversion section can convert optical signal into electric signal and show that light intensity changes with time in encircled portion
Figure.
5. the device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument according to claim 1, its
It is characterised by：Single-chip microcomputer can be according to light intensity curve slope in encircled portion and burning time 30s, when automatic identification is lighted
Between, the change of the light intensity of after flame time, smoldering time three phases.
6. the device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument according to claim 1, its
It is characterised by：Record system is placed in outside combustion barrel and connected with photosensitive part, and output button is used for exporting burning time and light intensity becomes
Change.
7. the device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument according to claim 1, power
Profit is characterized in that：Change reducible experimentation by recording light intensity, there is provided the experimental data that can be consulted；By recording each rank
Section burning time and light intensity change, can be with the combustibility of auxiliary judgment material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711137141.8A CN107703252A (en) | 2017-11-07 | 2017-11-07 | The device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711137141.8A CN107703252A (en) | 2017-11-07 | 2017-11-07 | The device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument |
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| Publication Number | Publication Date |
|---|---|
| CN107703252A true CN107703252A (en) | 2018-02-16 |
Family
ID=61179661
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| CN201711137141.8A Pending CN107703252A (en) | 2017-11-07 | 2017-11-07 | The device of the burning time of recorded matter and light intensity change in a kind of oxygen index instrument |
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