CN203455252U - Thermal insulating material fire spreading characteristic experiment device under external adjustable constant radiation condition - Google Patents
Thermal insulating material fire spreading characteristic experiment device under external adjustable constant radiation condition Download PDFInfo
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- CN203455252U CN203455252U CN201320457285.2U CN201320457285U CN203455252U CN 203455252 U CN203455252 U CN 203455252U CN 201320457285 U CN201320457285 U CN 201320457285U CN 203455252 U CN203455252 U CN 203455252U
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Abstract
The utility model provides a thermal insulating material fire spreading characteristic experiment device under an external adjustable constant radiation condition. The thermal insulating material fire spreading characteristic experiment device under the external adjustable constant radiation condition comprises a thermal insulating material which is fixed on the wall surface of a fireproof gypsum board perpendicularly by an iron buckle assembled on the bottom or top of the thermal insulation material; fire ignition grooves are fixed at positions having a certain distance away from the upper edge or the lower edge of a board and respectively used for upper part ignition manner or lower part ignition manner for igniting thermal insulating material; a collecting tank is placed on the lower edge of the board so as to observe the spreading characteristic of flowing object after the thermal preservation board is fused and drops. According to the utility model, the controllable and stable external radiation intensity is realized, so that the fire spreading characteristic of the thermal insulating material with various textures and shapes under different radiation intensities is researched. The mode for fixing the thermal insulating material is that the bottom or the top of the board is fixed by an iron buckle and a rivet, and the rest part of the board is not fixed by the rivet so that the fire spreading characteristic of the surface of the thermal insulating material is not interfered by excessive rivets.
Description
Technical field
The utility model relates to the crossing domain of material, environment and safety, in particular, relates to the insulation material Spread Characteristics experimental provision under a kind of additional adjustable constant radiation condition.
Background technology
Skyscraper is that modern social economy develops the inevitable outcome of constantly accelerating with urbanization process rapidly, and the energy-saving heat preserving of the outer facade of skyscraper has become a large subject under discussion of building field.Organic insulation material because of high insulating effect, the feature such as cost performance is high, quality is light, construction install convenience is widely used in both at home and abroad in building.Yet itself very easily burns high-molecular organic material, if without strict flame treatment, after meeting fire, can burn and spread rapidly, wherein the combustion characteristics of thermoplastic melting drippage after extraneous thermal source heating increases its fire risk, therefore significant for there being the research of the Spread Characteristics of insulation material under extraneous radiation source condition.
Chinese patent 201110253772.2 is mentioned a kind of molten thermoplastic material burning behavior analogue experiment installation, that thermoplastic sheet material is fixed on a panel that can change inclination angle and carries out experimental study, bottom of device adopts rectangle food tray to receive the melting dropping producing in combustion process, observe its Spread Characteristics in food tray, this device can research material inclination angle, the impact of the far and near distance between material thickness and top wall thermoplastic sheet and below food tray on whole combustion process.The lower active oil sump fire combustion characteristics forming of Chinese patent 201310018248.6 research molten thermoplastic material drippages, because the developing characteristics of oil sump fire has vital role for the behavior of the coupling combustion of whole thermoplastic, this " heating-melting drippage " experimental provision can be furtherd investigate the evolution of oil sump fire preferably.Insulation material can be subject to self the oil sump fire of molten stream formation or the radiation heating effect of distant place fire point in actual fire process, thus burning and the spread process of acceleration insulation material, so extraneous radiation is to affect one of key factor of heat preservation plate material burning.But, for the full-scale insulation material adverse current fire spread combustion characteristics research device existing under the high-power radiation condition in the adjustable external world, yet there are no Patents or bibliographical information before this.
Summary of the invention
The purpose of this utility model is to propose a kind of insulation material at additional adjustable Spread Characteristics research method and the device of determining under radiation source condition, by changing the size of radiation intensity, can study variety classes, shape and spread the insulation material Spread Characteristics of form.
The technical solution of the utility model is: the insulation material Spread Characteristics experimental provision under a kind of additional adjustable constant radiation condition, comprise an insulation material, described insulation material be fixedly by rivet be fixed in refractory plasterboard wall vertical with iron buckle in bottom or for top, for the ignition slot of igniting, be fixed on apart from sheet material coboundary or lower limb a distance, respectively as two kinds of modes of igniting such as top igniting or bottom igniting, for lighting insulation material; Above-mentioned refractory plasterboard is vertically fixed on the first support; Described the first support stands on directly over the first electronic balance, between support and balance, with quartz plate, be separated by, the first electronic balance record be insulation material burning time mass change; Under described heat preservation plate material inward flange, place melting trickling groove, for receiving the melting dropping producing after top insulation material is heated, trickling groove is positioned over the straight and even top of second day, and what the second electronic balance recorded is the mass change that insulation material melting drops onto in trickling groove and occurs to burn; Described second day keeps flat and is placed in directly over the second support; There is not contacting of power with the second support in described the first support, the independent mass of avoiding affecting between gentle the second balance of first day is measured; The inner thermopair of laying of described trickling groove is set, and comprises some thermopairs, for measuring the change of temperature field in trickling groove; Radiation source is placed in described insulation material dead ahead, the radiation intensity size of radiation source regulates by switch board, before experiment starts, refractory slab is placed in radiation source dead ahead, to prevent that experiment is affected by it too early with insulation material, by radiant panel transformer, the radiation intensity of radiation source being adjusted to certain is subsequently worth after stable, by pulley gear, refractory slab is elevated to a distance, radiant panel top, make heat preservation plate material front can receive constant radiation completely and be advisable, described radiation source is placed on the 3rd support top; Described the 3rd support can slide and fix, and the suffered radiation heat flux size of heat insulation material surface can coordinate the distance of the 3rd support and the first support accurately to control by radiation source switch board; Near position cloth one radiation heatflowmeter described insulation material side, the radiation heat flux that heat insulation material surface when initial for monitoring experiment receives; Some video cameras can be laid in described insulation material side and dead ahead, the fire spread physical image feature while burning for taking from different perspectives insulation material.
The utility model device has following technical advantage:
(1) realize controlled and stable radiation intensity, thereby study under different extraneous radiation intensity the insulation material Spread Characteristics of various materials and shape.
(2) fixedly the mode of insulation material is fixed bottom or the top of sheet material by iron buckle and rivet, and the remainder of sheet material is without fixing with rivet again, avoids the interference of too much rivet to heat insulation material surface Spread Characteristics.
(3) the collection mouth of trickling on groove can better be collected the object that insulation material melt-flow drops down, and the melting dropping that the groove that simultaneously trickles can better be observed different types of insulation material forms the formation and development process of active oil sump fire.
(4) coboundary that ignition slot can be placed on sheet material, apart from lower certain distance and lower edge, can provide multiple fire spread situation, as top catch fire adverse current fire spread, bottom catch fire following current fire spread, incendiary source ignite spread, line burning things which may cause a fire disaster ignites and spreads etc.
(5) weightless for pyrolysis weight loss and the drippage of top insulation material, adopt the first electronic balance to measure in real time; The mass change that receives drippage molten thermoplastic and combustion process for below burning food tray, adopts the second electronic balance to measure in real time; These two electronic balances are the two-part mass change of independent measurement respectively, thereby the burning that can analyze whole insulation material spreads characteristic.
Accompanying drawing explanation
Fig. 1 is the structural representation of the insulation material Spread Characteristics experimental provision under a kind of additional adjustable constant radiation condition;
Fig. 2 is the structural representation of this experimental provision insulation material fixed form;
Fig. 3 is this experimental provision ignition slot shape and structure figure;
Fig. 4 is the burning oil tray of this experimental provision melting dropping;
Wherein: 1 is insulation material (sheet material), 2 is refractory plasterboard, 3 is the first support, 4 is radiation heatflowmeter, 5a and 5b are ignition slot, 6a, 6b, 6c, 6d, 202 and 203, 204, 205, 206 and 207 is fixing rivet, 7 is quartz plate, 8 is the first electronic balance, 9 is the second electronic balance, 10 is the second support, 11 quartz plates, 12 is trickling groove, 13 is thermopair tree, 14 is the 3rd support, 15 is the 3rd support-moving wheel, 16 is radiant panel, 17 is electric-heating-wire-heating pipe array, 18 is radiant panel binding post, 19 is video camera, 20 is pulley gear fixed support, 21 is refractory slab, 22a and 22b are pulley, 23 is traction cable, 24 is generator, 301 is the flame plate of igniting, 302 and 303 is ignition slot suspension member, 304 is igniter fuel, 401 for collecting mouth.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
Embodiment 1:
Fig. 1 is the insulation material Spread Characteristics experimental provision under a kind of additional adjustable constant radiation condition, and Fig. 2 is the structural representation of this experimental provision insulation material and ignition slot fixed form, and Fig. 3 is the structural representation of this experimental provision ignition slot.Fig. 4 is the gathering-device of this experimental provision insulation material melting dropping.Under the condition of a kind of external radiation of the present embodiment source, the fire spread combustion characteristics experimental provision of insulation material is positioned under an exhaust fume collecting hood with smoke exhaust fan, like this during insulation material burning and the flue gas that produces of bottom food tray burning all can be by outside exhaust fume collecting hood discharge chamber.
As shown in Figure 1, generous insulation material 1 surface for 1m * 10cm * 2cm of one block length is drawn horizontal line along short transverse every 10cm with black marking pen, described insulation material 1 is vertically fixed on the high refractory plasterboard 2 for 1.6m * 70cm * 2cm of length and width, fixed form as shown in Figure 2, a rectangular iron fabrication button 201 is fixed on to the lower edge of insulation material 1, with four rivets 204,205,206 and 207, insulation material 1 is fixed between iron plate 201 and refractory slab 2.Described insulation material 1 coboundary two sides are fixed respectively a rivet 202 and 203, be used for hanging ignition slot 5a, ignition slot 5a is adjusted to insulation material 1 coboundary 10cm place, carrying out top lights and can study the downward adverse current Spread Characteristics of insulation material 1, or rectangle iron plate 201 is fixed on apart from insulation material 1 coboundary 10cm place, ignition slot 5b is fixed on apart from insulation material 1 lower edge, thereby the following current Spread Characteristics that makes progress is studied.As shown in Figure 3, ignition slot 5a is that rectangle and upper surface are opening shape to described ignition slot 5a structure, and two sides are suspension member 302 and 303, and for hanging ignition slot 5a, ignition slot 5a front side is flame drainage plate 301, flame can be concentrated and is lighted insulation material 1.Described plasterboard 2 utilizes four rivet 6a, 6b, 6c and 6d are fixed on the first support 3 surfaces, the first support 3 bottoms are that triangular structure is to increase its stability, described the first support 3 is positioned on quartz plate 7, the first electronic balance 8 is placed in quartz plate 7 bottoms, the range of electronic balance 8 is 100kg, degree of accuracy is 0.01g, apart from insulation material 1 lower limb 10cm place, place trickling groove 12, described trickling groove 12 as shown in Figure 4, front side is collected mouthfuls 401 and is designed to infundibulate so that the melting dropping producing after collecting better insulation material 1 and being heated, main part is rectangle and upper surface open, to record the flow characteristics of melting trickling thing, the inner thermopair of vertically laying of trickling groove 12 sets 13, described thermopair tree 13 comprises 30 thermopairs, can be by change of temperature field and trickling characteristic in described thermopair tree 13 record burning food trays.It under described trickling groove 12, is a quartz plate 11, electronic balance 9 is placed on quartz plate 11 belows, heat harm to electronic balance 9 when quartz plate 11 is used for isolated burning, the range of electronic balance 9 is 20kg, degree of accuracy 0.1g, electronic balance 9 and quartz plate 11 integral body are placed on the second support 10, radiant panel 16 is placed on the 3rd support 14 tops, the heat generating components of this radiant panel 16 is one group of powerful vertically disposed electric-heating-wire-heating pipe 17, every electric-heating-wire-heating pipe 17 external application quartz glass sleeves carry out insulation blocking, by selecting the adjusting transformer 18 of self, can control its heating power.Described the 3rd support 14 bottoms are movable pulley 15, can change by mobile pulley 15 distance of radiant panel 16 relative insulation materials, thereby change the radiation intensity of 16 pairs of insulation materials of radiant panel.Pulley bracket 20, pulley 22a, 22b and refractory slab 21 are installed in support 14 tops, and side direction is motor 24, and the thermopair of described trickling groove 12 inside all carries out real-time data acquisition in access data capture card.During experiment test, the DOL Data Output Line of described electronic balance 8 and electronic balance 9 is all carried out real-time data acquisition in access data capture card.In insulation material 1 center, laid a radiation heatflowmeter 4; Video camera 19 is taken the front elevation of the interior molten stream burning of trickling groove 12 and insulation material 1 spread process.The DOL Data Output Line of described thermopair tree 13 and radiation heatflowmeter 4 all access data collector is carried out real-time data acquisition.
As shown in Figure 1, before experiment starts, insulation material 1 is fixed on refractory plasterboard 2 walls, opens motor 24, by pulley 22a and 22b, utilizes traction cable 23 to pull refractory slab 21, and refractory slab 21 is placed in to radiant panel 16 the place aheads, blocks radiant panel 16; Whole radiation appliance is moved to apart from insulation material 1 a distance, now radiant panel 16 apart from this distance of the surperficial 0.9m(of insulation material 1 depending on experiment condition), by regulating transformer 18, the electric-heating-wire-heating pipe 17 of radiant panel 16 heats up gradually, the radiation intensity of final radiant panel 16 will reach desired experiment predetermined value, after stable, open video collector, Temperature sampler, and quality measurement program starts to record whole experimentation.Again utilize pulley gear that refractory slab 21 is elevated to radiant panel 16 oblique uppers, now radiant panel 16 is by the whole insulation material of direct radiation 1 surface, and rearmost point fires the fuel 304 in ignition slot 5a.
In experimentation, the mass change in the downward melting drippage process of insulation material 1, is measured whole process by the first electronic balance 8, and this rate of mass change is exactly the mass loss rate of molten thermoplastic material liquid; And the mass change of below food tray combustion process will be measured by the second electronic balance 9, this mass change has reflected the change procedure of trickling groove 12 internal combustion speed and drop quality of reception gait synthesis.
The not detailed disclosed part of the utility model belongs to the known technology of this area.
Although above the illustrative embodiment of the utility model is described; so that those skilled in the art understand the utility model; but should be clear; the utility model is not limited to the scope of embodiment; to those skilled in the art; as long as various variations appended claim limit and the spirit and scope of the present utility model determined in; these variations are apparent, and all innovation and creation that utilize the utility model design are all at the row of protection.
Claims (1)
1. the insulation material Spread Characteristics experimental provision under an additional adjustable constant radiation condition, it is characterized in that: comprise an insulation material, described insulation material be fixedly by rivet be fixed in refractory plasterboard wall vertical with iron buckle in bottom or for top, for the ignition slot of igniting, be fixed on apart from sheet material coboundary or lower limb a distance, respectively as two kinds of modes of igniting such as top igniting or bottom igniting, for lighting insulation material; Above-mentioned refractory plasterboard is vertically fixed on the first support; Described the first support stands on directly over the first electronic balance, between the first support and the first electronic balance, with quartz plate, be separated by, the first electronic balance record be insulation material burning time mass change; Under described insulation material inward flange, place melting trickling groove, for receiving the melting dropping producing after top insulation material is heated, trickling groove is positioned over the straight and even top of second day, and what the second electronic balance recorded is the mass change that insulation material melting drops onto in trickling groove and occurs to burn; Described second day keeps flat and is placed in directly over the second support; There is not contacting of power with the second support in described the first support, the independent mass of avoiding affecting between gentle the second balance of first day is measured; The inner thermopair of laying of described trickling groove is set, and comprises some thermopairs, for measuring the change of temperature field in trickling groove; Radiation source is placed in described insulation material dead ahead, the radiation intensity size of radiation source regulates by switch board, before experiment starts, refractory slab is placed in radiation source dead ahead, to prevent that experiment is affected by it too early with insulation material, by radiant panel transformer, the radiation intensity of radiation source being adjusted to certain is subsequently worth after stable, by pulley gear, refractory slab is elevated to a distance, radiant panel top, make insulation material front can receive constant radiation completely and be advisable, described radiation source is placed on the 3rd support top; Described the 3rd support can slide and fix, and the suffered radiation heat flux size of heat insulation material surface coordinates the distance of the 3rd support and the first support accurately to control by radiation source switch board; Near position cloth one radiation heatflowmeter described insulation material side, the radiation heat flux that heat insulation material surface when initial for monitoring experiment receives; Some video cameras are laid in described insulation material side and dead ahead, the fire spread physical image feature while burning for taking from different perspectives insulation material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320457285.2U CN203455252U (en) | 2013-07-30 | 2013-07-30 | Thermal insulating material fire spreading characteristic experiment device under external adjustable constant radiation condition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320457285.2U CN203455252U (en) | 2013-07-30 | 2013-07-30 | Thermal insulating material fire spreading characteristic experiment device under external adjustable constant radiation condition |
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| CN203455252U true CN203455252U (en) | 2014-02-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389254A (en) * | 2013-07-30 | 2013-11-13 | 中国科学技术大学 | Experiment device for fire spread characteristics of thermal insulation material under external adjustable constant radiation condition |
| CN104849398A (en) * | 2015-05-28 | 2015-08-19 | 中国科学技术大学 | Experimental device for studying fire spread of thermal insulating material under ambient wind condition |
| CN108872467A (en) * | 2018-08-06 | 2018-11-23 | 华侨大学 | A kind of building exterior wall heat preserving plate fire spread characteristic test device and test method |
-
2013
- 2013-07-30 CN CN201320457285.2U patent/CN203455252U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389254A (en) * | 2013-07-30 | 2013-11-13 | 中国科学技术大学 | Experiment device for fire spread characteristics of thermal insulation material under external adjustable constant radiation condition |
| CN103389254B (en) * | 2013-07-30 | 2015-04-22 | 中国科学技术大学 | Experiment device for fire spread characteristics of thermal insulation material under external adjustable constant radiation condition |
| CN104849398A (en) * | 2015-05-28 | 2015-08-19 | 中国科学技术大学 | Experimental device for studying fire spread of thermal insulating material under ambient wind condition |
| CN108872467A (en) * | 2018-08-06 | 2018-11-23 | 华侨大学 | A kind of building exterior wall heat preserving plate fire spread characteristic test device and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140226 Effective date of abandoning: 20150422 |