CN215065965U - Small-size experimental device for comprehensively simulating stairway fire smoke migration law - Google Patents
Small-size experimental device for comprehensively simulating stairway fire smoke migration law Download PDFInfo
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- CN215065965U CN215065965U CN202121356097.1U CN202121356097U CN215065965U CN 215065965 U CN215065965 U CN 215065965U CN 202121356097 U CN202121356097 U CN 202121356097U CN 215065965 U CN215065965 U CN 215065965U
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Abstract
The utility model is suitable for a conflagration safety technical field provides an experimental apparatus of small-size comprehensive simulation stairway conflagration flue gas migration law, which comprises a base, the top of base is provided with a smoke storehouse, the top in smoke storehouse is provided with a proof box, the proof box is transparent material, the bottom of proof box inner wall front side is provided with first platform, the middle part of proof box inner wall rear side is provided with the second platform. This experimental apparatus of overall simulation stairway conflagration flue gas migration law of small-size, set up the outlet flue through the different positions at stair model, exhaust column and blowing pipe, can simulate different positions and have the air current to flow in or when the air current flows out or seals, the influence to the flue gas migration production, thereby observe the migration condition of flue gas under the different situation, the condition of stretching of conflagration flue gas in high-rise building is simulated clearly, emergent when formulating the conflagration flees, the reference of rescue scheme, personnel's loss of property when reducing the conflagration and taking place.
Description
Technical Field
The utility model belongs to the technical field of the conflagration safety, especially, relate to an experimental apparatus of small-size comprehensive simulation stairway conflagration flue gas migration law.
Background
With the development of economy, the number of high-rise buildings is more and more; the building body type and the structure form are gradually complicated, the functions are gradually integrated, the high-rise building brings comfortable, beautiful and magnificent visual perception and excellent living environment for people, but the safety problem caused by the high-rise building, particularly the fire safety problem, is quite serious, and the high-rise building fire accidents caused by various reasons occur.
When a fire disaster occurs in a high-rise building, smoke generated by the fire disaster can stretch along a step and a corridor, and can directly stretch into an upper floor and a lower floor along the step, so that great potential safety hazards are caused, the smoke propagation delay can be influenced by floor airflow, and the smoke stretching direction has uncertainty.
SUMMERY OF THE UTILITY MODEL
The utility model provides an experimental apparatus of small-size comprehensive simulation stairway conflagration flue gas migration law aims at solving the flue gas tendril time delay, can receive the influence of floor air current for flue gas stretchs the direction and has the uncertainty, consequently, needs a simulation experiment device to simulate the effect of stretching of flue gas, and the research flue gas receives the problem of the condition that the air current influences.
The utility model is realized in such a way, the experimental device for comprehensively simulating the fire smoke migration law of the stairway in a small size comprises a base, wherein a smoke cabin is arranged at the top of the base, a test box is arranged at the top of the smoke cabin and is made of transparent materials, a first platform is arranged at the bottom of the front side of the inner wall of the test box, a second platform is arranged at the middle part of the rear side of the inner wall of the test box, a third platform is arranged at the top of the front side of the inner wall of the test box, a first step plate is obliquely arranged between the first platform and the second platform, a second step plate is obliquely arranged between the second platform and the third platform, smoke outlets are respectively arranged on the first platform, the second platform and the third platform, a smoke outlet pipe is communicated with the top of the smoke cabin, the inner end of the smoke outlet pipe extends into the test box and is respectively communicated with the smoke outlets through a plurality of connecting pipes, each connecting pipe is provided with a first electromagnetic valve, openings are formed above and below the front side surface of the test box, one side of the front side of the outer side of the test box is rotatably and vertically provided with a screw rod, the upper part and the lower part of the surface of the screw rod are in threaded connection with screw rod sleeves, the screw rod sleeves are fixedly connected with movable plates parallel to the front side surface of the test box, the upper parts of the inner side surfaces of the two movable plates are respectively provided with a front empty groove, the middle part of the rear side surface of the test box is provided with a rear empty groove at a position corresponding to the second platform, an exhaust pipe and an air blowing pipe are respectively arranged in the front empty groove and the rear empty groove, the outer ends of the exhaust pipe and the air blowing pipe penetrate through the outer parts of the front empty groove and the rear empty groove, the exhaust pipe and the air blowing pipe are respectively provided with a second electromagnetic valve, and the front side of the top of the base is provided with an air blower, the air outlet of the air blower is communicated with the plurality of blowing pipes through the telescopic hose, an exhaust fan is arranged at the rear side of the top of the base, and an air inlet of the exhaust fan is communicated with the plurality of exhaust pipes through the telescopic hose.
Preferably, all be provided with detection device on the top and the bottom of proof box inner chamber and first step board and the second step board, detection device includes temperature detection module, smog concentration detection module.
Preferably, the rear side of the front side of the outer side of the test box is vertically and fixedly connected with a fixed rod, two movable sleeves are slidably sleeved on the surface of the fixed rod, and each movable sleeve is fixedly connected with the other end of one movable plate.
Preferably, the inner side surface of the movable plate is positioned outside the front empty groove and is provided with a sealing ring, and the inner side surface of the movable plate is positioned below the sealing ring and is provided with a sealing gasket.
Preferably, the front side of the top end of the test box is vertically communicated with an airflow pipe, and the top of the test box is provided with a blower facing the top end of the airflow pipe.
Preferably, the smoking chamber is made of heat-resistant materials, and fuel is arranged inside the smoking chamber to burn and smoke.
Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an experimental apparatus of small-size comprehensive simulation stair building conflagration flue gas migration law, different positions through at the stair model set up the outlet flue, the condition of the conflagration takes place for the simulation floor co-altitude, at the top, bottom and middle part all set up exhaust column and blowing pipe, can simulate different positions and have the air current to flow in or when the air current flows out or seal, the influence to the flue gas migration production, thereby observe the migration condition of flue gas under the different conditions, simulate the condition of stretching of conflagration flue gas in high-rise building clearly, provide reference data for conflagration safety prevention and control, formulate the route of fleing of evading flue gas migration route under the different conditions, emergent when formulating the conflagration, the reference of rescue scheme, personnel's loss of property when reducing the conflagration and taking place.
Drawings
Fig. 1 is a front sectional view of the present invention;
fig. 2 is a left side view of the present invention;
fig. 3 is a schematic view of the inner side structure of the movable plate of the present invention;
fig. 4 is a partially enlarged view of a portion a in fig. 1 according to the present invention.
In the figure: 1-base, 2-smoke-generating bin, 3-test box, 4-smoke-discharging pipe, 5-first platform, 6-second platform, 7-third platform, 8-first step plate, 9-second step plate, 10-smoke-discharging port, 11-connecting pipe, 12-detection device, 13-through port, 14-screw, 15-screw sleeve, 16-movable plate, 17-front empty slot, 18-sealing ring, 19-sealing pad, 20-exhaust pipe, 21-air blowing pipe, 22-laser beam emission device, 23-laser beam receiver, 24-fixed rod, 25-movable sleeve, 26-air blower, 27-exhaust fan, 28-airflow pipe, 29-air blower and 30-rear empty slot.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an experimental apparatus for small-size comprehensive simulation stair building conflagration flue gas migration law, includes base 1, and the top of base 1 is provided with a storehouse of fuming 2, and the top in storehouse of fuming 2 is provided with a proof box 3, and proof box 3 is transparent material.
In this embodiment, the storehouse of fuming 2 is heat-resisting material, and inside sets up fuel and burns and fuming to the smog that produces during the simulation burning also can be in the storehouse of fuming 2 inside sets up the fuming can, sends colored smog, observes more directly perceivedly, and 2 back intercommunications in the storehouse of fuming have the air hose, are provided with the valve on the air hose, can provide the air for the inside burning, can avoid the flue gas to leak simultaneously.
The bottom of 3 inner walls front sides of proof box is provided with first platform 5, the middle part of 3 inner walls rear sides of proof box is provided with second platform 6, the top of 3 inner walls front sides of proof box is provided with third platform 7, the slope is provided with first step board 8 between first platform 5 and the second platform 6, the slope is provided with second step board 9 between second platform 6 and the third platform 7, all be provided with outlet 10 on first platform 5, second platform 6 and the third platform 7.
In the embodiment, the test box 3 simulates a stair shaft, the first platform 5 simulates the position of a lower floor, the second platform 6 simulates the position of the middle part of the floor, and the third platform 7 simulates the position of a higher floor, so that smoke is discharged through smoke outlets 10 at different positions, the condition that floors with different heights are on fire is simulated, and the migration condition of smoke is observed.
The top of the smoke generating bin 2 is communicated with a smoke outlet pipe 4, the inner end of the smoke outlet pipe 4 extends into the test box 3 and is respectively communicated with a plurality of smoke outlets 10 through a plurality of connecting pipes 11, and each connecting pipe 11 is provided with a first electromagnetic valve.
Through being fuming in the inside burning of storehouse 2 of fuming, the flue gas passes through a smoke outlet pipe 4 and carries to a plurality of connecting pipes 11 in, through the switching of every connecting pipe 11 of first solenoid valve control to the outlet 10 of control different positions goes out the cigarette, simulates the fire condition of different floor height.
The upper through hole 13 and the lower through hole 13 correspond to the first platform 5 and the third platform 7 respectively, the communication condition of the bottom end and the top end of the simulated corridor and the external environment is simulated, and the rear empty groove 30 corresponds to the second platform 6, and the communication condition of the stairwell and the corridor in the middle floor is simulated.
The movable plate 16 can slide in the vertical direction along the front side surface of the test chamber 3, and when the screw 14 is rotated, the movable plate 16 is driven to move upwards or downwards, so that the corresponding positions of the front empty groove 17 and the through opening 13 on the movable plate 16 are adjusted, and when the through opening 13 just corresponds to the front empty groove 17, the test chamber 3 is communicated with the outside through the through opening 13.
Further, a sealing ring 18 is disposed on the inner side surface of the movable plate 16 outside the front empty groove 17, and a sealing gasket 19 is disposed on the inner side surface of the movable plate 16 below the sealing ring 18.
When the through opening 13 just corresponds to the front empty groove 17, the sealing ring 18 is located between the movable plate 16 and the test box 3 and just covers the outer parts of the front empty groove 17 and the through opening 13, so that air leakage at the joint of the front empty groove 17 and the through opening 13 is avoided, when the movable plate 16 moves upwards continuously, the sealing gasket 19 seals the through opening 13 when the sealing gasket 19 corresponds to the through opening 13, and the condition that the door of each position of a corridor is closed is simulated.
The front side at base 1 top is provided with air-blower 26, and the air outlet of air-blower 26 passes through the expansion hose and communicates with a plurality of blowing pipes 21, and the rear side at base 1 top is provided with air exhauster 27, and the air intake of air exhauster 27 passes through the expansion hose and communicates with a plurality of exhaust pipes 20.
In this embodiment, when the front empty slot 17 corresponds to an opening, the blower 26 is controlled to operate to blow air into the blowing pipes 21, at this time, the second electromagnetic valves on all the air suction pipes 20 are closed, the opening and closing of each blowing pipe 21 can be controlled through the control of the second electromagnetic valve on each blowing pipe 21, air is selectively blown into the test box 3 from one or more blowing pipes 21, when a fire occurs, the migration condition of smoke when air is blown into the air is simulated at different height positions of a floor, the exhaust fan 27 is controlled to operate, at this time, the second electromagnetic valves on all the blowing pipes 21 are closed, the electromagnetic valves on one or more air suction pipes 20 are selectively opened to draw air away, and the influence of the outflow of air inside the floor on the migration of smoke is simulated when air flows outside the different height positions of the floor.
Further, all be provided with detection device 12 on the top and the bottom of proof box 3 inner chamber and first step board 8 and the second step board 9, detection device 12 includes temperature detection module, smog concentration detection module.
In this embodiment, the detection device 12 may further include other different modules, and the migration condition of the flue gas is tested by multiple sets of data, and the migration path and position of the flue gas are monitored in real time by monitoring of the detection device 12.
Further, a fixed rod 24 is fixedly connected to the rear side of the front side of the outer side of the test chamber 3 in a vertical direction, two movable sleeves 25 are slidably sleeved on the surface of the fixed rod 24, and each movable sleeve 25 is fixedly connected to the other end of one movable plate 16.
In the present embodiment, the movable sleeve 25 is fixedly connected to the movable plate 16, and guides the movable plate 16 when the movable plate 16 moves in the vertical direction, so as to ensure that the movable plate 16 is tightly attached to the front side of the test chamber 3.
Further, the front side of the top end of the test chamber 3 is vertically communicated with an airflow pipe 28, and the top of the test chamber 3 is provided with a blower 29 facing the top end of the airflow pipe 28.
In this embodiment, airflow tube 28 communicates the inner cavity of test box 3 with the external environment, and when there is airflow at the well opening of the simulation building top floor stairs, the influence on the migration of flue gas is realized, the top end of airflow tube 28 communicates with a transverse pipeline, blower 29 blows air into the transverse pipeline to simulate the horizontal airflow of the top floor, and the opening and closing of airflow tube 28 can be adjusted.
Further, the front of the test box 3 is provided with a plurality of groups of laser beam emitting devices 22 at uniform intervals, and the back of the test box 3 is provided with a plurality of groups of laser beam receivers 23 corresponding to the laser beam emitting devices 22 one to one.
Laser beams are emitted to the back of the test box 3 through the laser beam emitting devices 22 at different positions, and the laser beam receivers 23 receive and monitor the light intensity to test the condition that the laser beams are shielded by smoke, so that the smoke migration path is obtained.
The utility model discloses a theory of operation and use flow: after the utility model is installed, the smoke is generated by burning in the smoke generating chamber 2, the smoke is delivered to a plurality of connecting pipes 11 through the smoke outlet pipe 4, the first electromagnetic valve controls the opening and closing of each connecting pipe 11, thereby controlling the smoke outlet 10 at different positions to output smoke, when the front empty slot 17 corresponds to the through opening, the air blower 26 is controlled to work to blow air into the blowing pipe 21, at the moment, the second electromagnetic valves on all the air extracting pipes 20 are closed, the opening and closing of each blowing pipe 21 can be controlled through the control of the second electromagnetic valve on each blowing pipe 21, the air is blown into the test box 3 from one or a plurality of blowing pipes 21, when fire occurs, the migration condition of the smoke when air is blown in at different height positions of floors is simulated, the exhaust fan 27 is controlled to work, at the moment, the second electromagnetic valves on all the blowing pipes 21 are closed, the electromagnetic valves on one or a plurality of air extracting pipes 20 are selected to be opened, the air is extracted, when airflow flows outside different height positions of a simulated floor, the influence of outflow of air inside a corridor on smoke migration is caused, when the movable plate 16 continues to move upwards, the sealing gasket 19 closes the through opening 13 when the sealing gasket 19 corresponds to the through opening 13, and the situation of smoke migration when the door at each position of the corridor is closed is simulated.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides an experimental apparatus of small-size comprehensive simulation stairway conflagration flue gas migration law which characterized in that: comprises a base (1), a smoke cabin (2) is arranged at the top of the base (1), a test box (3) is arranged at the top of the smoke cabin (2), the test box (3) is made of transparent materials, a first platform (5) is arranged at the bottom of the front side of the inner wall of the test box (3), a second platform (6) is arranged at the middle of the rear side of the inner wall of the test box (3), a third platform (7) is arranged at the top of the front side of the inner wall of the test box (3), a first step plate (8) is obliquely arranged between the first platform (5) and the second platform (6), a second step plate (9) is obliquely arranged between the second platform (6) and the third platform (7), smoke outlets (10) are arranged on the first platform (5), the second platform (6) and the third platform (7), and a smoke outlet pipe (4) is communicated with the top of the smoke cabin (2), the inner end of the smoke outlet pipe (4) extends into the test box (3) and is respectively communicated with the smoke outlets (10) through a plurality of connecting pipes (11), each connecting pipe (11) is provided with a first electromagnetic valve, the upper part and the lower part of the front side surface of the test box (3) are respectively provided with a through hole (13), one side of the front side of the outer side of the test box (3) is rotatably and vertically provided with a screw rod (14), the upper part and the lower part of the surface of the screw rod (14) are respectively in threaded connection with a screw rod sleeve (15), the screw rod sleeve (15) is respectively and fixedly connected with movable plates (16) parallel to the front side surface of the test box (3), the upper parts of the inner side surfaces of the two movable plates (16) are respectively provided with a front empty groove (17), and the middle part of the rear side surface of the test box (3) is provided with a rear empty groove (30) at a position corresponding to the second platform (6), preceding dead slot (17) with all be provided with exhaust column (20) and blowing pipe (21) in back dead slot (30), exhaust column (20) with the outer end of blowing pipe (21) all runs through to preceding dead slot (17) with the outside of back dead slot (30), exhaust column (20) with all be provided with the second solenoid valve on blowing pipe (21), the front side at base (1) top is provided with air-blower (26), the air outlet of air-blower (26) passes through expansion hose and a plurality of blowing pipe (21) intercommunication, the rear side at base (1) top is provided with air exhauster (27), the air intake of air exhauster (27) passes through expansion hose and a plurality of air-suction column (20) intercommunication.
2. The experimental device for comprehensively simulating the smoke migration law of the fire disaster of the stairway in a small size as claimed in claim 1, wherein: all be provided with detection device (12) on the top and the bottom of proof box (3) inner chamber and first step board (8) and second step board (9), detection device (12) include temperature detection module, smog concentration detection module.
3. The experimental device for comprehensively simulating the smoke migration law of the fire disaster of the stairway in a small size as claimed in claim 1, wherein: the rear side of the front side of the outer side of the test box (3) is vertically and fixedly connected with a fixed rod (24), two movable sleeves (25) are slidably sleeved on the surface of the fixed rod (24), and each movable sleeve (25) is fixedly connected with the other end of one movable plate (16).
4. The experimental device for comprehensively simulating the smoke migration law of the fire disaster of the stairway in a small size as claimed in claim 1, wherein: the inner side surface of the movable plate (16) is located outside the front empty groove (17) and is provided with a sealing ring (18), and a sealing gasket (19) is arranged below the sealing ring (18) and located on the inner side surface of the movable plate (16).
5. The experimental device for comprehensively simulating the smoke migration law of the fire disaster of the stairway in a small size as claimed in claim 1, wherein: an airflow pipe (28) is vertically communicated with the front side of the top end of the test box (3), and a blower (29) facing the top end of the airflow pipe (28) is arranged at the top of the test box (3).
6. The experimental device for comprehensively simulating the smoke migration law of the fire disaster of the stairway in a small size as claimed in claim 1, wherein: the smoke generating bin is made of heat-resistant materials, and fuel is arranged inside the smoke generating bin to burn and smoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121356097.1U CN215065965U (en) | 2021-06-18 | 2021-06-18 | Small-size experimental device for comprehensively simulating stairway fire smoke migration law |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121356097.1U CN215065965U (en) | 2021-06-18 | 2021-06-18 | Small-size experimental device for comprehensively simulating stairway fire smoke migration law |
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| CN215065965U true CN215065965U (en) | 2021-12-07 |
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| CN202121356097.1U Active CN215065965U (en) | 2021-06-18 | 2021-06-18 | Small-size experimental device for comprehensively simulating stairway fire smoke migration law |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115206171A (en) * | 2022-07-14 | 2022-10-18 | 江苏小七智能科技有限公司 | Smoke diffusion and propagation demonstration system |
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2021
- 2021-06-18 CN CN202121356097.1U patent/CN215065965U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115206171A (en) * | 2022-07-14 | 2022-10-18 | 江苏小七智能科技有限公司 | Smoke diffusion and propagation demonstration system |
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