CN212410484U - Building insulation board double-fire-point fusion experimental device under variable wind speed condition - Google Patents
Building insulation board double-fire-point fusion experimental device under variable wind speed condition Download PDFInfo
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- CN212410484U CN212410484U CN202021029303.3U CN202021029303U CN212410484U CN 212410484 U CN212410484 U CN 212410484U CN 202021029303 U CN202021029303 U CN 202021029303U CN 212410484 U CN212410484 U CN 212410484U
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Abstract
The utility model discloses a building insulation board fuses experimental apparatus with two ignition points under variable wind speed condition, including the platform that drips, the platform that drips erects on high accuracy electronic balance, the steel sheet that two intervals set up is erect to the bench face that drips, the internal fixed surface of the steel sheet of its one side installs curtain panel, the insulation board that the internal fixed surface of the steel sheet of opposite side set up the level, insulation board goes up to distribute has the thermocouple that is the level display and sets up, insulation board both ends are provided with the ignition point, erect the gas collecting channel respectively directly over the ignition point position, install the differential pressure gauge on the gas outlet duct of gas collecting channel, a side bearer of the platform that drips is equipped with bellows, the opposite side of the platform that drips is erect high definition DV support through high definition DV. The utility model discloses can simulate under the variable wind speed condition of nature, insulation material receives the two fire ignition spreading behaviors under the influence of different wind speeds in the middle of wall body and curtain intermediate layer, studies the influence that external wind speed size is fast slow and the flue gas flows to the burning.
Description
The technical field is as follows:
the utility model relates to a under the different wind speed effects of nature, the two fiery lights of building outer wall insulation board burn the fire and stretch and the outer facade structural design field of building, mainly relate to a two fire point of building insulation board fuse experimental apparatus under variable wind speed condition.
Background art:
since the 21 st century, various national industries are developed at a high speed, the energy consumption is increased day by day, particularly, the energy consumption in the building industry accounts for one third of the energy consumption in the whole country, and the number of new buildings in China is increased continuously, so that the building industry pushes comprehensive energy-saving transformation, and the research on the building external wall heat-insulating board is concerned.
At present, organic heat insulation materials such as polystyrene and polyurethane are widely applied due to excellent heat insulation performance, but the organic heat insulation materials are usually flammable, once a protective layer of a building wall falls off or is damaged, the middle heat insulation material can be burnt and rapidly spread when meeting high temperature or open fire, and a plurality of ignition points can be formed due to the phenomenon of melting and dropping during burning, so that fire hazard is rapidly expanded, great loss and damage are caused to personnel and property, and severe social influence is generated.
After the heat-insulating material is ignited, flame continuously drops along with the combustion, so that the heat-insulating material at other parts is ignited to form double-fire-point or even multi-fire-point combustion, because a certain air interlayer space exists between the building curtain wall and the wall structure, under the influence of the external wind speed, the heat-insulating plate can accelerate the combustion in a long and narrow ventilation channel, and meanwhile, the larger the wind speed is, the faster the air circulation is, and the more violent the combustion is.
The utility model has the following contents:
the utility model discloses the purpose is exactly in order to compensate prior art's defect, provides a two ignition point of building insulation board fuse experimental apparatus under the variable wind speed condition for the research is under true environment wind condition, and variable wind speed is lighted the influence that burns the action of stretching of burning a fire to insulation board two fires.
The utility model discloses a realize through following technical scheme:
a double-fire point fusion experimental device for building heat-insulating boards under the condition of variable wind speed comprises a dripping platform, the dripping platform is erected on the high-precision electronic balance, two steel plates which are arranged at intervals are erected on the dripping platform, the inner surface of the steel plate at one side is fixedly provided with a curtain wall plate, the inner surface of the steel plate at the other side is fixedly provided with a horizontally arranged heat preservation plate, thermocouples which are horizontally arranged are distributed on the heat-insulating plate, ignition points are arranged at two ends of the heat-insulating plate, an electronic igniter is arranged at the ignition point position, gas collecting hoods are respectively erected right above the ignition point position, a differential pressure gauge is arranged on an air outlet pipeline of the gas collecting hood, an air box is erected on one side of the dripping platform, the air outlet of the air box faces between the two steel plates, a high-precision anemoscope is erected at the air outlet, and high-definition DVs are erected on the other side of the dripping platform through a high-definition DV support.
The heat insulation board is provided with iron nails which are horizontally arranged at intervals and used for fixing the heat insulation board.
The thermocouples are arranged on the heat preservation plate in a double-row up-down corresponding interval.
The thermocouple is used for measuring flame temperature when burning, high accuracy electronic balance is arranged in measuring the insulation board and takes place the mass change in the smoldering or naked light combustion process after igniting, the differential pressure gauge is arranged in determining the flue gas velocity of flow that produces among the combustion process, high definition DV is used for the record flame change form and hot melt drippage phenomenon among the insulation board combustion process, and the bolometer is used for recording flame radiant intensity, the output signal of thermocouple, electronic balance, differential pressure gauge, high definition DV and bolometer all inserts data acquisition appearance, carries out long-range real-time data acquisition and demonstration through computer software.
The principle is as follows: two steel plates are supported and fixed on a dripping platform at the bottom by a supporting rod, the dripping platform is made of a fireproof gypsum board, the whole device is placed on a high-precision electronic balance, an air box capable of adjusting the air speed is placed on the side face of the device, the size of the generated air speed can be determined by an anemoscope in front, a high-definition DV is placed on the other side of the device and is used for recording the flame change form, the smoke generation speed and the hot melt dripping phenomenon of the heat-insulating plate under the action of different air speeds, thermocouples which are uniformly distributed are arranged on the surface of the heat-insulating plate and are used for measuring the flame temperature in the combustion process, the size of an air outlet of the air box needs to be large enough and can cover the whole experimental device, so that the air flow can be uniformly blown around the device, the electronic balance measures the mass change of the heat-insulating plate in the combustion process after the heat-insulating plate is ignited, and a radiation heat flow, the differential pressure gauge can be used for measuring the flow velocity of smoke generated by burning of double fire in the combustion process, and the high-definition DV can record the physical images of flames on the windward side and the leeward side of the heat-insulating board.
The utility model has the advantages that:
(1) the device can simulate the double-fire ignition spreading behavior of the heat-insulating material under the influence of different wind speeds between the wall body and the curtain wall interlayer under the condition of variable wind speeds in the nature, and researches the influence of the external wind speed on the combustion speed and the smoke flowing.
(2) The thermocouples and the radiant heat flow meters which are uniformly distributed are arranged on the heat insulation plate, so that the temperature change and the heat radiation intensity of the heat insulation material in the combustion process can be measured in real time.
(3) The differential pressure gauge can be used for measuring the flow velocity of the generated smoke at any time and is used for researching the deviation of harmful smoke dust generated by burning the plate due to the change of the wind speed. The mass loss of the heat-insulating material in the combustion process is recorded in real time by combining an electronic balance, and the amount and the change rule of the smoke generated during the combustion of the heat-insulating material can be further researched.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of the main body of the present invention.
Fig. 3 is a top view of the main body of the present invention.
In the figure: 1 is an air box; 2 is an air supply outlet; 3, a high-precision anemometer; 4 is a steel plate; 5 is an iron nail; 6 is a support rod; 7 is a dripping table; 8 is a thermocouple array; 9 is a radiant heat flow meter; 10 is a differential pressure gauge; 11 is a heat-insulating plate; 12 is a high-precision electronic balance; 13 is high definition DV; and 14 is a high-definition DV scaffold.
The specific implementation mode is as follows:
the following describes a specific embodiment of the present invention with reference to fig. 1 to 3, and the technical solutions in the embodiments of the present invention are clearly and completely described, but not limited to the present invention.
A building insulation board double-fire point fusion experimental device under the condition of variable wind speed comprises two steel plates 4, wherein steel plates with the specification of 1200mm long, 500mm wide and 3mm thick are adopted, the two steel plates 4 are fixed on a dripping platform 7 at the bottom through a support rod 6, an iron nail 5 is installed on the steel plate at the back and used for fixing an insulation board 11, the front steel plate can be used for fixing a curtain wall material through an adhesive, two differential pressure gauges 10 are arranged above the device and can measure the flow speed of smoke generated during double-fire point combustion of the boards, a high-precision electronic balance 12 is arranged below the dripping platform 7 and can record the mass change during combustion of the insulation board, thermocouple arrays 8 are uniformly distributed on the insulation board 11, thermocouples are symmetrically distributed in two rows of the upper row and the lower row of the experimental board at equal intervals, 5 thermocouples are arranged in one row and have 2 rows and 10 thermocouples, and are used for measuring the flame temperature change at different time and, the middle of the furnace is provided with a radiant heat flow meter 9 which can measure the radiation intensity of flame during double-fire combustion.
The left side is provided with a bellows 1, bellows 1 is the bellows of adjustable wind speed, its horizontal air-out is even and the air outlet is 1m apart from the horizontal distance of steel sheet 4, whole bellows size is 2m height, 0.8m is wide, and the wind speed of horizontal air-out is surveyed by placing high accuracy anemograph 3 in bellows the place ahead, can measure the wind speed of blowing to the experiment panel surface in real time, be provided with a high definition DV13 in the right side, fix with high definition DV support 14, be used for shoot record panel receive different wind speed when burning under influence, the flame height of two ignition burning, the flame direction, flue gas flows and the phenomenon of melting drippage.
During testing, the high-definition DV13 is started, the left side air box 1 is started, the radiant heat flow meter 9 is started, and then an igniter is used for simultaneously igniting from two ends of the heat-insulation board; at this time, the high-precision electronic balance 12 records the mass change of the heat-insulating board during combustion, and the high-definition DV13 can also record the flame physical images of the double fire points of the windward side and the leeward side of the heat-insulating board; the radiant heat flow meter 9 can respectively record the flame radiation intensity of the heat-preservation plate when two fire points are burnt; the thermocouple array 8 can record the temperature of flame in the combustion process in the whole process; the differential pressure gauge 10 can measure the flow rate of the flue gas generated by the two fire points under the influence of the wind speed. After the experiment is completed, the wind speed of the wind outlet of the wind box is adjusted, and the characteristics and the rules of the heat-insulating board during double-fire-point combustion under the influence of various different wind speeds are measured. The high-precision electronic balance 12, the radiant heat flow meter 9, the differential pressure meter 10, the thermocouple array 8 and other measurement signals are all connected to a data acquisition card for real-time acquisition.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected to the inside of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a two ignition of building insulation board fuse experimental apparatus under variable wind speed condition which characterized in that: including the platform that drips, the platform that drips erects on high accuracy electronic balance, the steel sheet that two intervals set up is erect to the bench face that drips, and the internal surface fixed mounting of the steel sheet of its one side has curtain panel, and the internal surface fixed mounting of the steel sheet of opposite side has the insulation board that the level set up, insulation board distributes and has the thermocouple that is the level display setting, insulation board both ends are provided with the ignition point, ignition point position department installs electronic ignition ware, erect the gas collecting channel respectively directly over the ignition point position, install the differential pressure gauge on the gas outlet duct of gas collecting channel, the wind box is erect to one side of the platform that drips, the air outlet of wind box is towards between two steel sheets, air outlet department erects and is equipped with high accuracy anemoscope, the opposite side of the platform that drips is erect high definition DV support through the high definition DV.
2. The double-fire-point fusion experimental device for the building thermal insulation board under the variable wind speed condition according to claim 1, characterized in that: the heat insulation board is provided with iron nails which are horizontally arranged at intervals and used for fixing the heat insulation board.
3. The double-fire-point fusion experimental device for the building thermal insulation board under the variable wind speed condition according to claim 1, characterized in that: the thermocouples are arranged on the heat preservation plate in a double-row up-down corresponding interval.
4. The double-fire-point fusion experimental device for the building thermal insulation board under the variable wind speed condition according to claim 1, characterized in that: the thermocouple is used for measuring flame temperature when burning, high accuracy electronic balance is arranged in measuring the insulation board and takes place the mass change in the smoldering or naked light combustion process after igniting, the differential pressure gauge is arranged in determining the flue gas velocity of flow that produces among the combustion process high definition DV is used for the record insulation board combustion process flame change form and hot melt drippage phenomenon, and the bolometer is used for recording flame radiant intensity, the output signal of thermocouple, electronic balance, differential pressure gauge, high definition DV and bolometer all inserts data acquisition appearance, carries out long-range real-time data acquisition and demonstration through computer software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021029303.3U CN212410484U (en) | 2020-06-08 | 2020-06-08 | Building insulation board double-fire-point fusion experimental device under variable wind speed condition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021029303.3U CN212410484U (en) | 2020-06-08 | 2020-06-08 | Building insulation board double-fire-point fusion experimental device under variable wind speed condition |
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| CN212410484U true CN212410484U (en) | 2021-01-26 |
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| CN202021029303.3U Expired - Fee Related CN212410484U (en) | 2020-06-08 | 2020-06-08 | Building insulation board double-fire-point fusion experimental device under variable wind speed condition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117849561A (en) * | 2024-03-08 | 2024-04-09 | 国网四川省电力公司电力科学研究院 | Distribution line discharge melt ignition type fault test device and test method |
-
2020
- 2020-06-08 CN CN202021029303.3U patent/CN212410484U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117849561A (en) * | 2024-03-08 | 2024-04-09 | 国网四川省电力公司电力科学研究院 | Distribution line discharge melt ignition type fault test device and test method |
| CN117849561B (en) * | 2024-03-08 | 2024-05-14 | 国网四川省电力公司电力科学研究院 | Distribution line discharge melt ignition type fault test device and test method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210126 Termination date: 20210608 |
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| CF01 | Termination of patent right due to non-payment of annual fee |