CN204964430U - A device for measuring inside temperature variation during macromolecular material burning - Google Patents
A device for measuring inside temperature variation during macromolecular material burning Download PDFInfo
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- CN204964430U CN204964430U CN201520618316.7U CN201520618316U CN204964430U CN 204964430 U CN204964430 U CN 204964430U CN 201520618316 U CN201520618316 U CN 201520618316U CN 204964430 U CN204964430 U CN 204964430U
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- macromolecular material
- material sample
- internal temperature
- temperature change
- flame
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Abstract
The utility model provides a device for measuring inside temperature variation during macromolecular material burning, is equipped with the digital recorder that a fixing base that is used for fixed polymer material sample, can be used for real -time measurement polymer material sample temperature inside when the flame effect is burnt down to the flame projecting device of polymer material sample suface jet flame and, polymer material sample in the embedding have the thermocouple, the thermocouple passes through thermocouple compensating wires and is connected with digital recorder. The device manufacturing cost is lower, operate fairly simple, can the normal position, measure and write down macromolecular material inside temperature when the flame effect is burnt down in real time and come ration sign material to fire the action of charring to heat transfer's influence with the experimental data along with the dynamic change of time, provide a brand -new quantitative analysis characterization method for the research of fire -retardant macromolecular material.
Description
Technical field
The utility model relates to a kind of experimental provision, is specifically related to a kind of device for measuring internal temperature change when macromolecular material burns.
Background technology
One of subject matter that the high-molecular organic materials such as plastics, rubber, fiber exist in actual applications is inflammable, and how testing the fire resistance of macromolecular material is one of the important research direction in this field.At present, the experimental technique both at home and abroad for characterize polymers material combustion performance is more, and for the fire retardant mechanism of material, especially at the fire retardant mechanism of condensed phase, the charring (becoming charcoal quantity and layer of charcoal quality) often by material is analyzed.It has been generally acknowledged that, if it is more to generate carbon residue quantity when material combustion or thermal decomposition, layer of charcoal surface is more continuous fine and close, then can form effective fire-proof curtain at material surface, the heat transmission cut off or reduce between flame zone and material internal and mass exchange, significantly improve the fire resistance of material.The research method adopted is the morphosis by scanning and/or transmission electron microscope observation residue, then judges according to mentioned above principle.But; this traditional research method is only one theoretical analysis qualitatively; the layer of charcoal generated during macromolecular material thermal decomposition can to what extent stop heat transmission on earth, and protective material avoids flame interaction, does not have reliable experimental provision and method both at home and abroad.
Utility model content
The purpose of this utility model is to provide a kind of brand-new corrosion chamber, for measuring internal temperature change when macromolecular material burns.
The technical scheme that the utility model is adopted for achieving the above object is: a kind of device for measuring internal temperature change when macromolecular material burns, be provided with a holder for fixing macromolecular material sample, one can to the flame device of macromolecular material specimen surface jet flames and one for measuring the digital recorder of internal temperature when macromolecular material sample burns under flame interaction in real time, be embedded with thermopair in described macromolecular material sample, thermopair is connected with digital recorder by compensation lead of thermocouple.
Wherein, described holder is also provided with for adjust macromolecular material sample upper surface and flame device jet out flames between the angle regulator of angle.
Further, the leading screw vertically arranged and the motor controlling screw turns is also provided with in holder, leading screw is arranged with the slide block with inner nut structure matched with the screw thread on it, described angle regulator is fixed on slide block, described holder is also provided with the knob controlling machine operation/stopping, forward/reverse respectively.
Further, be provided with the guidepost pumped for guide shoe in holder, slide block is provided with the guide pin bushing coordinated with guidepost.
In the utility model, the holding screw that angle regulator is connected by adapter sleeve, the threaded hole that arranges with adapter sleeve center and the tray for placing macromolecular material sample form, adapter sleeve is fixed on slide block by removable link, tray is extend in the threaded hole of adapter sleeve inside by the extension rod that it is arranged, and extension rod is rotatably mounted in threaded hole by holding screw.
In the utility model, thermopair is the multiple temperature thermocouples arranged along the thickness direction of macromolecular material sample, has identical temperature response characteristics between each thermopair, and in identical temperature after the match, temperature difference T≤2 DEG C between each thermopair.
In the utility model, flame device comprise introduce gas source input pipe, be located at the flow control valve on input pipe and be located at the nozzle of input pipe end, nozzle correspondence is located at the top of macromolecular material sample, the flow adjustment knob described holder being also provided with fume extractor and being connected with flow control valve.
Further, described holder comprises two frameworks that ectonexine is arranged and the square shell being fixed on framework top, fire-retardant heat insulation layer is provided with in the interlayer arranged between two frameworks, framework is made up of base plate, top board and the side plate for vertical connecting bottom board and top board three sides, wherein, the diapire of the top board double side of doing shell, the inwall of one of them side plate of internal layer framework is fixed with rule; In the described fume extractor side of being located at shell, top board is provided with poly-petticoat pipe and the exhaust opening that arrange corresponding to fume extractor, and on top board, the position of corresponding framework opening is provided with smoke barrier.
In the utility model, in described holder and digital recorder, correspondence is provided with multiple compensation lead of thermocouple joint.
In the utility model, holder is also provided with timer.
The beneficial effects of the utility model: (1), this device utilize flame device, the length of flame making it spray just is ejected into macromolecular material sample upper surface, press startup and the record switch of digital recorder simultaneously, start to carry out burning test and data acquisition; In this device, thermopair is connected with digital recorder by compensation lead of thermocouple, internal temperature when utilizing digital recorder real time record macromolecular material sample to burn, the series of temperature delta data of the sample same thickness position of same sample different-thickness position or different composition can be obtained, and then for the internal temperature change of the different macromolecular material of comparative chemistry composition/micromechanism when burning, achieving fire-retardant research and being improved to quantitative experimental data from theoretical analysis qualitatively and characterizing.
(2), this device manufacturing cost is lower, operate fairly simple, can original position, measure and record internal temperature dynamic change in time when macromolecular material burns under flame interaction in real time, the impact that quantitatively characterizing material combustion charring transmits heat is carried out, for flame retarded polymeric material research provides a kind of brand-new quantitative test characterizing method by experimental data.
(3), this device utilize by the leading screw of driven by motor and the slide block with the supporting transmission of leading screw, realize moving back and forth up and down of slide block, so adjustment macromolecular material sample and nozzle between spacing; Meanwhile, can utilize angle regulator adjust macromolecular material sample upper surface and nozzle jet out flames between angle, meet different experiment needs.
Accompanying drawing explanation
Fig. 1 is overview of the present utility model;
Fig. 2 and Fig. 3 is the schematic diagram of holder and square shell in Fig. 1;
Fig. 4 is the schematic diagram of the holder after the side's of removing shell.
Reference numeral: 1, macromolecular material sample, 2, thermopair, 3, compensation lead of thermocouple, 4, holder, 40, leading screw, 41, slide block, 42, motor, 43, guidepost, 5, flame device, 50, nozzle, 51, input pipe, 52, flow control valve, 53, fume extractor, 54, flow adjustment knob, 6, digital recorder, 7, angle regulator, 70, adapter sleeve, 71, holding screw, 72, tray, 73, extension rod, 8, framework, 80, base plate, 81, side plate, 82, top board, 83, fire-retardant heat insulation layer, 9, side's shell, 10, exhaust opening, 11, smoke barrier, 12, rule, 13, timer, 14, removable link, 15, poly-petticoat pipe.
Embodiment
A kind of device for measuring internal temperature change when macromolecular material burns, as shown in Figure 1, being provided with a holder 4, for fixing macromolecular material sample 1 can to the flame device 5 of the surperficial jet flames of macromolecular material sample 1 and one for measuring the digital recorder 6 of internal temperature when macromolecular material sample 1 burns under flame interaction in real time, be embedded with thermopair 2 in described macromolecular material sample 1, thermopair 2 is connected with digital recorder 6 by compensation lead of thermocouple 3.
Wherein, for adjustment macromolecular material sample 1 upper surface and flame device 5 jet out flames between angle, as depicted in figs. 1 and 2, holder 4 is also provided with the angle regulator 7 for adjusting macromolecular material sample 1 angle of inclination.And be the spacing of adjustment macromolecular material sample 1 upper surface and flame device 5, as shown in Figures 2 and 3, the leading screw 40 vertically arranged and the motor 42 controlling leading screw 40 rotation is also provided with in holder 4, leading screw 40 is arranged with the slide block 41 with inner nut structure matched with the screw thread on it, be provided with the guidepost 43 pumped for guide shoe 41 in holder 4, slide block 41 is provided with the guide pin bushing coordinated with guidepost 43.Angle regulator 7 is fixed on slide block 41, described holder 4 is also provided with control that motor 42 works/stops, the knob of forward/reverse respectively.
Wherein, as shown in Figure 4, the holding screw 71 that angle regulator 7 is connected by adapter sleeve 70, the threaded hole that arranges with adapter sleeve 70 center and the tray 72 for placing macromolecular material sample 1 form, adapter sleeve 70 is fixed on slide block 41 by removable link 14, tray 72 extend in the threaded hole of adapter sleeve 70 inside by the extension rod 73 that it is arranged, and extension rod 73 is rotatably mounted in threaded hole by holding screw 71.
Flame device 5 as shown in figures 1 and 3, comprise the input pipe 51 of introducing gas source, be located at the flow control valve 52 on input pipe 51 and be located at the nozzle 50 of input pipe 51 end, nozzle 50 correspondence is located at the top of macromolecular material sample 1, the flow adjustment knob 54 described holder 4 being also provided with fume extractor 53 and being connected with flow control valve 52.Wherein, holder 4 comprises two frameworks 8 that ectonexine is arranged and the square shell 9 being fixed on framework 8 top, as shown in Figure 4, fire-retardant heat insulation layer 83 is provided with in the interlayer arranged between two frameworks 8, as shown in Figures 2 and 3, framework 8 is made up of base plate 80, top board 82 and the side plate 81 for vertical connecting bottom board 80 and top board 82 3 sides, wherein, the diapire of the top board 82 double side of doing shell 9, the inwall of one of them side plate of internal layer framework is fixed with rule 12; In described fume extractor 53 side of being located at shell 9, top board 82 is provided with poly-petticoat pipe 15 and the exhaust opening 10 that arrange corresponding to fume extractor 53, and on top board 82, the position of corresponding framework opening is provided with smoke barrier 11.Wherein, holder 4 is also provided with timer 13, in holder 4 and digital recorder 6, correspondence is provided with multiple compensation lead of thermocouple joint.
According to kind and the composition of flame retarded polymeric material, the compressing temperature of reasonable set, the granule materials of the polymeric material through accurate measurement is placed in a mold by compressing, obtain the identical but macromolecular material sample 1 of the circle that thickness is different of a series of composition, according to the quantity of the thermopair 2 of embedding, the thickness of macromolecular material sample 1 is rationally set.In the utility model, thermopair 2 is the multiple temperature thermocouples arranged along the thickness direction of macromolecular material sample 1, has identical temperature response characteristics between each thermopair, and in identical temperature after the match, temperature difference T≤2 DEG C between each thermopair.
Starter motor 42, motor 42 drives leading screw 40 to rotate, and slide block 41 moves back and forth up and down, and when slide block 41 moves to correct position, stops the work of motor 42; Then the angle of inclination of macromolecular material sample 1 is adjusted by angle regulator 7.After, open the flow switch of gas source, in holder 4, the combustion gas of nozzle 50 ejection is lighted with long-armed lighter, adjust flux variable valve 52, the length of flame is made just to be ejected into the upper surface of macromolecular material sample 1, meanwhile, press startup and the record switch of digital recorder 6, carry out burning test and data acquisition.
Claims (10)
1. one kind for measure macromolecular material burning time internal temperature change device, it is characterized in that: be provided with a holder (4) for fixing macromolecular material sample (1), one can to the flame device (5) of macromolecular material sample (1) surperficial jet flames and one for measuring the digital recorder (6) of internal temperature when macromolecular material sample (1) burns under flame interaction in real time, thermopair (2) is embedded with in described macromolecular material sample (1), thermopair (2) is connected with digital recorder (6) by compensation lead of thermocouple (3).
2. according to claim 1 a kind of for measuring macromolecular material burning time internal temperature change device, it is characterized in that: described holder (4) is also provided with for adjust macromolecular material sample (1) upper surface and flame device (5) jet out flames between the angle regulator (7) of angle.
3. a kind of device for measuring internal temperature change when macromolecular material burns according to claim 2, it is characterized in that: in holder (4), be also provided with the motor (42) that the leading screw (40) that vertically arranges and control leading screw (40) are rotated, leading screw (40) is arranged with the slide block with inner nut structure (41) matched with the screw thread on it, described angle regulator (7) is fixed on slide block (41), described holder (4) is also provided with the knob controlling motor (42) work/stopping, forward/reverse respectively.
4. a kind of device for measuring internal temperature change when macromolecular material burns according to claim 3, it is characterized in that: be provided with the guidepost (43) pumped for guide shoe (41) in described holder (4), slide block (41) is provided with the guide pin bushing coordinated with guidepost (43).
5. a kind of device for measuring internal temperature change when macromolecular material burns according to claim 3, it is characterized in that: described angle regulator (7) is by adapter sleeve (70), the holding screw (71) that the threaded hole arranged with adapter sleeve (70) center is connected and the tray (72) for placing macromolecular material sample (1) form, adapter sleeve (70) is fixed on slide block (41) by removable link (14), tray (72) extend in the inner threaded hole of adapter sleeve (70) by the extension rod (73) that it is arranged, extension rod (73) is rotatably mounted in threaded hole by holding screw (71).
6. a kind of device for measuring internal temperature change when macromolecular material burns according to claim 1, it is characterized in that: described thermopair (2) is the multiple temperature thermocouples arranged along the thickness direction of macromolecular material sample (1), between each thermopair, there is identical temperature response characteristics, and in identical temperature after the match, temperature difference T≤2 DEG C between each thermopair.
7. a kind of device for measuring internal temperature change when macromolecular material burns according to claim 1, it is characterized in that: described flame device (5) comprise introduce gas source input pipe (51), be located at the flow control valve (52) on input pipe (51) and be located at the nozzle (50) of input pipe (51) end, nozzle (50) correspondence is located at the top of macromolecular material sample (1), the flow adjustment knob (54) described holder (4) being also provided with fume extractor (53) and being connected with flow control valve (52).
8. a kind of device for measuring internal temperature change when macromolecular material burns according to claim 7, it is characterized in that: described holder (4) comprises two frameworks (8) that ectonexine is arranged and the square shell (9) being fixed on framework (8) top, fire-retardant heat insulation layer (83) is provided with in the interlayer arranged between two frameworks (8), framework (8) is by base plate (80), top board (82) and side plate (81) composition for vertical connecting bottom board (80) and top board (82) three sides, wherein, the diapire of top board (82) the double side of doing shell (9), the inwall of one of them side plate of internal layer framework is fixed with rule (12), in described fume extractor (53) side of being located at shell (9), top board (82) is provided with poly-petticoat pipe (15) and the exhaust opening (10) that arrange corresponding to fume extractor (53), and the position of the upper corresponding framework opening of top board (82) is provided with smoke barrier (11).
9. a kind of device for measuring internal temperature change when macromolecular material burns according to claim 1, is characterized in that: described holder (4) and the upper correspondence of digital recorder (6) are provided with multiple compensation lead of thermocouple joint.
10. a kind of device for measuring internal temperature change when macromolecular material burns according to claim 1, is characterized in that: described holder (4) is also provided with timer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520618316.7U CN204964430U (en) | 2015-08-17 | 2015-08-17 | A device for measuring inside temperature variation during macromolecular material burning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520618316.7U CN204964430U (en) | 2015-08-17 | 2015-08-17 | A device for measuring inside temperature variation during macromolecular material burning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204964430U true CN204964430U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520618316.7U Expired - Fee Related CN204964430U (en) | 2015-08-17 | 2015-08-17 | A device for measuring inside temperature variation during macromolecular material burning |
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| Country | Link |
|---|---|
| CN (1) | CN204964430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067664A (en) * | 2015-08-17 | 2015-11-18 | 河南科技大学 | Device for measuring variation of internal temperature during combustion of polymer material |
-
2015
- 2015-08-17 CN CN201520618316.7U patent/CN204964430U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067664A (en) * | 2015-08-17 | 2015-11-18 | 河南科技大学 | Device for measuring variation of internal temperature during combustion of polymer material |
| CN105067664B (en) * | 2015-08-17 | 2017-12-15 | 河南科技大学 | A kind of device for being used to measure internal temperature change when high polymer material burns |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20190817 |