CN104990955A - Downward flame spreading mechanism diagnosis device of foam material fixed to wall in bottom-supported and side-clamped mode - Google Patents
Downward flame spreading mechanism diagnosis device of foam material fixed to wall in bottom-supported and side-clamped mode Download PDFInfo
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- CN104990955A CN104990955A CN201510434562.1A CN201510434562A CN104990955A CN 104990955 A CN104990955 A CN 104990955A CN 201510434562 A CN201510434562 A CN 201510434562A CN 104990955 A CN104990955 A CN 104990955A
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Abstract
The invention discloses a downward flame spreading mechanism diagnosis device of foam material fixed to a wall in a bottom-supported and side-clamped mode. The device comprises a metal support, wherein a fireproof plate is vertically arranged on the upper part of the metal frame, a horizontal bracket is installed under the fireproof plate, the bottom of a flammable foam sheet to be detected is placed on the horizontal bracket and is tightly pressed to the fireproof plate; two sides of the flammable foam sheet are both provided with a vertical clamping plate, the metal support is placed on a horizontal fireproof plate, a first electronic balance is arranged under the horizontal fireproof plate, a metal oil disc is placed right under the flammable foam sheet, the metal oil disc is placed on a second electronic balance; a first camera is arranged on the right front of the flammable foam sheet, a second camera is arranged on the side of the flammable foam sheet, a smoke hood is arranged above the metal support and the flammable foam sheet, and the flue gas collected by the smoke hood is discharged from a flue and draught fan. The provided device has the advantages that the surface of the sheet sample is not destroyed, and the surface is intact and continuous after the testing.
Description
Technical field
The invention belongs to combustible material fire spread study mechanism field, in particular, relate to a kind of based on the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device.
Background technology
The fast development of the polymkeric substance technology of preparing of various excellent performance and extensively using, brings numerous facilities to the production of people and life.But the combustibility of these superpolymer often increases the fire load of application places, bring new problem to the control of fire wherein.For this reason, grasp the fire behavior parameters such as the fireclay weld of these materials, design effectively fire extinguishing system is wherein had great importance.The foamed materials such as extruded polystyrene hard foam and polyurethane flexible foam material are used widely at various wall, play the effect such as heat preservation energy-saving and attractive, decorative.Entity test and diagnostic for the vertical wall Spread Characteristics of this type of material is studied, and first need to be fixed on adherent for material in a certain support wall in order, and its fixed form has important impact to final test result.The adherent fixing means of existing material is (as International Academic periodical Fire and Material (the Fire and Materials of Britain issuing, 1997, 21st volume, 1-6 page) mostly adopt several rivets that material is ordered the mode on support panel, this fixing means, destroy surface integrity and the continuity of tested sheet material, the continuity of heat and mass transfer in material surface spread process is made to occur singular point due to the puncture of rivet, cannot the ideal process of accurate simulation sheet material wall fire spread, and the accurate simulation of this process is the essential condition grasping its heat and mass rule, also be the necessary basis of follow-up consideration other factors impact.
Summary of the invention
The object of the invention is the needs for flammable foamed material fire spread study mechanism straight down, propose one and do not destroy tested plate surface integrality and the adherent fixed form of successional sheet material, thus provide new device for the further investigation of the adherent fire spread mechanism straight down of this type of material.
The technical solution used in the present invention is: a kind of based on the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device, comprise the metal support that a Upper vertical installs one piece of PLASTIC LAMINATED, a horizontal tray is installed in the below of PLASTIC LAMINATED, the bottom of tested flammable foam board to be positioned on this horizontal tray and to be close to PLASTIC LAMINATED, respectively there are vertical clamping plate the both sides of tested flammable foam board, metal support is positioned on one piece of horizontal PLASTIC LAMINATED, the first electronic balance is placed below this horizontal PLASTIC LAMINATED, a metal food tray is placed immediately below tested flammable foam board, this metal food tray is positioned on the second electronic balance, the first video camera is laid in the dead ahead of tested flammable foam board, the second video camera is arranged in side, an exhaust fume collecting hood is installed in the top of metal support and tested flammable foam board, the combustion product gases that exhaust fume collecting hood is collected is discharged by smoke discharging pipe and blower fan.
Wherein, the described horizontal tray holding tested flammable foamed material from bottom to be a kind ofly made up of some metal slice lateral connection perpendicular to tested flammable foam surface, each metal slice has some vertical metal hour hands upwards, and each vertical metal hour hand upwards inserts bottom tested flammable foamed material and is fixed its lateral attitude.
Wherein, the described horizontal tray with vertical metal hour hand can adjust before and after the first horizontal guide rail perpendicular to tested flammable foam surface, makes vertical metal hour hand aim at the central area of the tested flammable foamed material bottom section of different-thickness.
Wherein, inside the described vertical clamping plate being positioned at tested flammable foam board both sides, there is some horizontal metal hour hands, should with the vertical clamping plate of inner metal hour hand inwardly from the tested flammable foam board of both sides clamping, the cross section, side that each horizontal metal hour hand inserts tested flammable foam board is fixed its level and vertical position.
Wherein, the described vertical clamping plate being positioned at tested flammable foam board both sides, can adjust before and after the second horizontal guide rail perpendicular to tested flammable foam surface, make horizontal metal hour hand aim at the central area in the cross section, tested flammable foamed material side of different-thickness.
Wherein, described in be positioned at the vertical clamping plate of tested flammable foam board both sides, along the 3rd horizontal guide rail laterally adjustment being parallel to tested flammable foam surface, thus tested flammable foam board can be clamped or unclamps tested flammable foam board.
Wherein, what described first electronic balance was measured is mass change in tested flammable foam board combustion process.
Wherein, what described second electronic balance was measured is that in tested flammable foam board combustion process, contingent melting drops in food tray and the mass change caused of burning.
Wherein, what described first video camera and the second video camera were shot with video-corder is the evolution that the downward fire spread of tested flammable foam board is burnt.
Wherein, when carrying out downward fire spread experiment test, first described tested flammable foam board is lighted by the line style incendiary source be placed near its top.
Compared with prior art, the present invention has following technical advantage:
(1) present invention, avoiding the method for fixing tested flammable foam board by rivet the puncture of plate surface integrality is destroyed, achieve the adherent installation of surface nondestructive of tested flammable foam board, maintain integrality and the continuity of plate surface.This plate surface can't harm the method for adherent installation, is more conducive to accurately disclosing heat and mass transfer mechanism in the downward spread process of sheet material, obtains the downward Spread Characteristics parameter of sheet material more accurately.
(2) the present invention with upwards vertically the bottom level bracket of hour hand can carry out front and back position adjustment along perpendicular to tested flammable foam board surface direction, the vertical hour hand of bottom level bracket can be made always upwards to insert sheet material from sheet material base cross section midline position, thus this device can be tested for the downward Spread Characteristics of the foam board of different-thickness.
(3) the present invention can carry out front and back position adjustment along perpendicular to tested flammable foam board surface direction with the vertical clamping plate in both sides of inside horizontal hour hand, the hour hand of the vertical clamping plate in both sides can be made always inwardly to insert sheet material from cross section, sheet material side midline position, thus this device can be tested for the downward Spread Characteristics of the foam board of different-thickness.
(4) the present invention with upwards vertically the bottom level bracket of hour hand adopt the some metal slice lateral connection perpendicular to tested flammable foam surface to form, space between each adjacent metal slice, can guarantee that the molten melt drop that may be formed in tested flammable foam board combustion process drips to food tray smoothly, avoid the complex effects that droplets pack is formed at sheet material base.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram based on the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device, and wherein Fig. 1 a is front elevation, and Fig. 1 b is side view;
Fig. 2 is positioned at the horizontal tray structural representation bottom tested flammable foamed material;
Fig. 3 is the vertical clamp region schematic diagram being positioned at tested flammable foamed material both sides;
Wherein: 1 is PLASTIC LAMINATED, 2 is metal support, and 3 is horizontal tray, 4 is flammable foam board, 5 is vertical clamping plate, and 6 is horizontal PLASTIC LAMINATED, and 7 is the first electronic balance, 8 is metal food tray, 9 is the second electronic balance, and 10 is the first video camera, and 11 is the second video camera, 12 is exhaust fume collecting hood, 13 is smoke discharging pipe, and 14 is blower fan, and 15 is metal slice, 16 is vertical metal hour hand, 17 is the first horizontal guide rail, and 18 is horizontal metal hour hand, and 19 is the second horizontal guide rail, 20 is the 3rd horizontal guide rail, and 21 is line style incendiary source.
Specific embodiments
For the test of the downward Spread Characteristics of extruded polystyrene rigid foam sheet material, the specific embodiment of the present invention is described below in conjunction with accompanying drawing.
Fig. 1 gives the integrated machine composition of the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device, and wherein Fig. 1 a is front elevation, and Fig. 1 b is side view.Fig. 2 gives the horizontal tray structural representation bottom tested flammable foamed material, and Fig. 3 gives the vertical clamp region schematic diagram of tested flammable foamed material both sides.Based on the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device, PLASTIC LAMINATED 1 should be comprised, metal support 2, horizontal tray 3, flammable foam board 4, vertical clamping plate 5, horizontal PLASTIC LAMINATED 6, first electronic balance 7, metal food tray 8, second electronic balance 9, first video camera 10, second video camera 11, exhaust fume collecting hood 12, smoke discharging pipe 13, blower fan 14, metal slice 15, vertical metal hour hand 16, first horizontal guide rail 17, horizontal metal hour hand 18, second horizontal guide rail the 19, three horizontal guide rail 20 and line style incendiary source 21.Specifically, this device comprises the metal support 2 that a Upper vertical installs one piece of PLASTIC LAMINATED 1, a horizontal tray 3 is installed in the below of PLASTIC LAMINATED 1, the bottom of tested flammable foam board 4 to be positioned on this horizontal tray 3 and to be close to PLASTIC LAMINATED 1, respectively there are vertical clamping plate 5 both sides of tested flammable foam board 4, metal support 2 is positioned on one piece of horizontal PLASTIC LAMINATED 6, the first electronic balance 7 is placed below this horizontal PLASTIC LAMINATED 6, a metal food tray 8 is placed immediately below tested flammable foam board 4, this metal food tray 8 is positioned on the second electronic balance 9, the first video camera 10 is laid in the dead ahead of tested flammable foam board 4, the second video camera 11 is arranged in side, an exhaust fume collecting hood 12 is installed in the top of metal support 2 and tested flammable foam board 4, the combustion product gases that exhaust fume collecting hood 12 is collected is discharged by smoke discharging pipe 13 and blower fan 14.The described horizontal tray 3 holding tested flammable foamed material 4 from bottom to be a kind ofly made up of some metal slice 15 lateral connection perpendicular to tested flammable foamed material 4 surface, each metal slice 15 has some vertical metal hour hands 16 upwards, and each vertical metal hour hand 16 upwards inserts bottom tested flammable foamed material 4 and is fixed its lateral attitude.The described horizontal tray 3 with vertical metal hour hand 16 can adjust before and after the first horizontal guide rail 17 perpendicular to tested flammable foamed material 4 surface, makes vertical metal hour hand 16 aim at the central area of tested flammable foamed material 4 bottom section of different-thickness.Inside the described vertical clamping plate 5 being positioned at tested flammable foam board 4 both sides, there is some horizontal metal hour hands 18, should with the vertical clamping plate 5 of inner metal hour hand inwardly from the tested flammable foam board 4 of both sides clamping, the cross section, side that each horizontal metal hour hand 18 inserts tested flammable foam board 4 is fixed its level and vertical position.The described vertical clamping plate 5 being positioned at tested flammable foam board 4 both sides, can adjust before and after the second horizontal guide rail 19 perpendicular to tested flammable foamed material 4 surface, make horizontal metal hour hand 18 aim at the central area in the cross section, tested flammable foamed material 4 side of different-thickness.The described vertical clamping plate 5 being positioned at tested flammable foam board 4 both sides, along the 3rd horizontal guide rail 20 laterally adjustment being parallel to tested flammable foamed material 4 surface, thus can clamp tested flammable foam board 4 or unclamp tested flammable foam board 4.What described first electronic balance 7 was measured is mass change in tested flammable foam board 4 combustion process.What described second electronic balance 9 was measured is that in tested flammable foam board 4 combustion process, contingent melting drops in food tray and the mass change caused of burning.What described first video camera 10 and the second video camera 11 were shot with video-corder is the evolution that the fire spread downwards of tested flammable foam board 4 is burnt.When carrying out downward fire spread experiment test, first described tested flammable foam board 4 is lighted by the line style incendiary source 21 be placed near its top.
Metal support 2 in the present embodiment adopts angle steel to be welded, as shown in Figure 1, overall high 1.4 meters, its upper end install thick 1 centimetre of PLASTIC LAMINATED 1, wide 0.6 meter, high 1 meter.Thick 3 centimetres of tested extruded polystyrene rigid foam sheet material, wide 0.4 meter, high 0.8 meter.
Horizontal tray 3 in the present embodiment is formed by 7 metal slice 15 transverse weld, as shown in Figure 2, long 8 centimetres of every root metal slice 15, its xsect is the square of the length of side 1 centimetre, distance between adjacent metal slice 15 is 9 centimetres, and the vertical metal hour hand 16 of long 1 centimetre a, diameter 1 millimeter is upwards welded at the middle part of every root metal slice 15.
Vertical clamping plate 5 in the present embodiment are made up of two pieces of sheet metals being welded with horizontal metal hour hand 18 and interlock fixed sturcture thereof, as shown in Figure 3.Long 1 meter, wide 3 centimetres, thick 3 millimeters of sheet metal.Every 5 centimetres of weld horizontal metal hour hands 18 inside sheet metal, metal hour hand 18 long 1 centimetre, diameter 1 millimeter.
When carrying out experiment test, first vertical clamping plate 5 are opened to both sides, make its width be greater than the width of sheet material to be measured.Be 3 centimetres according to the thickness of extruded polystyrene rigid foam sheet material to be measured again, regulate horizontal tray 3 to stretch out the length of PLASTIC LAMINATED 1, make the vertical metal hour hand 16 on horizontal tray 3 be 1.5 centimetres apart from PLASTIC LAMINATED 1 outside surface.Regulate vertical clamping plate 5 and the distance on PLASTIC LAMINATED 1 surface simultaneously, make the horizontal metal hour hand 18 on vertical clamping plate 5 be 1.5 centimetres apart from PLASTIC LAMINATED 1 outside surface.Then, extruded polystyrene rigid foam sheet material to be measured is close to PLASTIC LAMINATED 1 surface and moves down, the bottom surface of sheet material to be measured is inserted from its midline position by vertical metal hour hand 16, thus makes the bottom of sheet material be held fixing by horizontal tray 3.Afterwards, move inward vertical clamping plate 5, make the horizontal metal hour hand 18 inside its sheet metal insert the center line in cross section, extruded polystyrene rigid foam sheet material side to be measured from both sides.So far, extruded polystyrene rigid foam sheet material to be measured is lifted by bottom and is able to adherent fixing with the mode of side-nip, and maintains integrality and the continuity of plate surface.
Foam board to be measured is adherent be fixed on PLASTIC LAMINATED 1 after, the logging program of the first electronic balance 7, second electronic balance 9, first video camera 10 and the second video camera 11 can be opened, the upper edge of line style incendiary source 21 pairs of sheet materials is adopted to light a fire, the downward spread process of sheet material is tested and record, thus analyzes the downward fire spread mechanism of such material.For the foam board to be measured of different-thickness, width and length, by regulate bottom bracket 3 stretch out PLASTIC LAMINATED 1 length and vertically clamping plate 5 apart from the distance on PLASTIC LAMINATED 1 surface, all this device can be adopted, under the condition destroying plate surface without the need to puncture, its downward Spread Characteristics is tested.
Claims (8)
1. one kind based on the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device, it is characterized in that: comprise the metal support (2) that a Upper vertical installs one piece of PLASTIC LAMINATED (1), a horizontal tray (3) is installed in the below of PLASTIC LAMINATED (1), the bottom of tested flammable foam board (4) is positioned over this horizontal tray (3) and goes up and be close to PLASTIC LAMINATED (1), respectively there is a vertical clamping plate (5) both sides of tested flammable foam board (4), metal support (2) is positioned on one piece of horizontal PLASTIC LAMINATED (6), the first electronic balance (7) is placed in this horizontal PLASTIC LAMINATED (6) below, a metal food tray (8) is placed immediately below tested flammable foam board (4), this metal food tray (8) is positioned on the second electronic balance (9), the first video camera (10) is laid in the dead ahead of tested flammable foam board (4), the second video camera (11) is arranged in side, an exhaust fume collecting hood (12) is installed in the top of metal support (2) and tested flammable foam board (4), the combustion product gases that exhaust fume collecting hood (12) is collected is discharged by smoke discharging pipe (13) and blower fan (14).
2. according to claim 1 a kind of based on the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device, it is characterized in that: the described horizontal tray (3) holding tested flammable foamed material (4) from bottom is that one is formed perpendicular to metal slice (15) lateral connection that tested flammable foamed material (4) is surperficial by some, each metal slice (15) has some vertical metal hour hands (16) upwards, each vertical metal hour hand (16) is upwards inserted tested flammable foamed material (4) bottom and is fixed its lateral attitude.
3. according to claim 1 a kind of based on the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device, it is characterized in that: the described horizontal tray (3) with vertical metal hour hand (16) can, along adjustment before and after the first horizontal guide rail (17) perpendicular to tested flammable foamed material (4) surface, make vertical metal hour hand (16) aim at the central area of tested flammable foamed material (4) bottom section of different-thickness.
4. according to claim 1 a kind of based on the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device, it is characterized in that: described in be positioned at tested flammable foam board (4) both sides vertical clamping plate (5) inner side there is some horizontal metal hour hands (18), should with the vertical clamping plate (5) of inner metal hour hand inwardly from the tested flammable foam board (4) of both sides clamping, the cross section, side that each horizontal metal hour hand (18) inserts tested flammable foam board (4) is fixed its level and vertical position.
5. according to claim 1 a kind of based on the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device, it is characterized in that: described in be positioned at the vertical clamping plate (5) of tested flammable foam board (4) both sides, can, along adjustment before and after the second horizontal guide rail (19) perpendicular to tested flammable foamed material (4) surface, horizontal metal hour hand (18) be made to aim at the central area in tested flammable foamed material (4) cross section, side of different-thickness.
6. according to claim 1 a kind of based on the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device, it is characterized in that: described in be positioned at the vertical clamping plate (5) of tested flammable foam board (4) both sides, along the 3rd horizontal guide rail (20) the laterally adjustment being parallel to tested flammable foamed material (4) surface, thus tested flammable foam board (4) can be clamped or unclamps tested flammable foam board (4).
7. according to claim 1 a kind of based on the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device, it is characterized in that: the mass change that what described first electronic balance (7) was measured is in tested flammable foam board (4) combustion process.
8. according to claim 1 a kind of based on the adherent fixing foamed material of collet side clamp type downward fire spread Mechanism Diagnosis device, it is characterized in that: what described second electronic balance (9) was measured is may occur in tested flammable foam board (4) combustion process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510434562.1A CN104990955A (en) | 2015-07-21 | 2015-07-21 | Downward flame spreading mechanism diagnosis device of foam material fixed to wall in bottom-supported and side-clamped mode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510434562.1A CN104990955A (en) | 2015-07-21 | 2015-07-21 | Downward flame spreading mechanism diagnosis device of foam material fixed to wall in bottom-supported and side-clamped mode |
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| CN201510434562.1A Pending CN104990955A (en) | 2015-07-21 | 2015-07-21 | Downward flame spreading mechanism diagnosis device of foam material fixed to wall in bottom-supported and side-clamped mode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105911084A (en) * | 2016-05-30 | 2016-08-31 | 芜湖美威包装品有限公司 | Flame-resistant performance detection device of packaging foam |
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