CN205428359U - Mobile law of high -rise building fire smoke and control technical research test bench are down used to masterpieces that drive more - Google Patents
Mobile law of high -rise building fire smoke and control technical research test bench are down used to masterpieces that drive more Download PDFInfo
- Publication number
- CN205428359U CN205428359U CN201520998451.9U CN201520998451U CN205428359U CN 205428359 U CN205428359 U CN 205428359U CN 201520998451 U CN201520998451 U CN 201520998451U CN 205428359 U CN205428359 U CN 205428359U
- Authority
- CN
- China
- Prior art keywords
- fire
- rise building
- smoke
- testing stand
- control technical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Instructional Devices (AREA)
Abstract
This application is mobile law of high -rise building fire smoke and control technical research test bench are down used to masterpieces that drive more, and this test bench includes high -rise building model and outdoor experimental apparatus, and the high -rise building model includes escalator, stairwell, share the cup, air supply shaft, smoke shaft, supply -air outlet, exhaust port, annular corridor, experiment room, outdoor experimental apparatus includes mechanical forced draught blower, mechanical induced -draft fan, outdoor wind simulation production device, flowmeter, frequency conversion ware, multiple spot temperature acquisition system, multiple spot pressure collecting system. This test bench is built according to actually constructing 1: 3 reduced scale, has the advantage that the authenticity is strong, the function is various, the structure is meticulous, the image is practical.
Description
Technical field
This utility model belongs to technical field of fire hazard safety, is specifically related to city (surpassing) skyscraper Compartment Fire Smoke Flow rule and controls engineering test platform.
Background technology
In recent years, along with expanding economy and the quickening of Development of China's Urbanization, for the problem that solution urban population growth and land resource are the most in short supply, urban architecture constantly develops to high level.Mainly present following characteristics: the quantity of skyscraper gets more and more；Building shape and version are increasingly sophisticated, and function is increasingly comprehensive, and high-level synthesis groups of building continue to bring out.Relevant statistics display, China has skyscraper about more than 150,000 building at present, and its camber there are about more than 1800 at the high-rise building of more than 100m, and this quantity is still in quickly increasing.
Skyscraper brings comfortable, attractive in appearance, grand visual experience and superior living environment to us, but the safety problem that skyscraper is caused, and especially security against fire problem is the severeest, a variety of causes the fire of high-rise building accident caused happens occasionally.Although the number proportion in fire sum that rises of high-rise building with fire disaster is not very big, but the loss caused is the biggest.
During high-rise building with fire disaster, its fire smoke is under the effect of various driving forces, and in building, first level spreads, and the most vertically spreads.The driving force that climing heat smoke spreads mainly includes the heat buoyancy that high temperature causes, stack effect, extraneous wind-force, mechanism contact type sensor and the impact of mechanical smoke extraction.Under the influence of various factors, fire smoke is in skyscraper.
Exit corridor is as the first place of safety evacuating path, it is impossible to definitely preventing the intrusion of fire smoke, during any one room breaking out of fire, produced flue gas is likely to invade in exit corridor.During common building breaking out of fire, fire smoke is mainly driven by heat buoyancy, and in building, the driving effect of hot pressing function, outside wind pressure and air conditioner is less, and the kinetic energy that therefore in exit corridor, fire smoke transports is less.And hot pressing function is notable in skyscraper, and outside wind pressure is big, and during fire, exterior window is broken causes outdoor wind to pour into, and both driving forces significantly increase the kinetic energy that fire smoke transports at exit corridor.After mechanism contact type sensor starts, forced draft can stop fire smoke transporting at exit corridor, and fire smoke can be caused bigger disturbance by mechanical smoke extraction simultaneously.Therefore, under multi-driving force coupled effect, in exit corridor, fire smoke transport process is more complicated, and flow of flue gas is more difficult to control to.
Skyscraper flue gas control method typically carries out mechanism contact type sensor to staircase, cup or Fire lift common antechamber at present, discharges fume exit corridor, prevents fire smoke from being entered vertical evacuation passage by exit corridor, to guarantee safety evacuation.From the foregoing, after high-rise building with fire disaster, fire smoke, in addition to heat buoyancy drives, builds the driving forces such as interior hot pressing, outside wind pressure, mechanism contact type sensor and mechanical smoke extraction more significant to the driving effect also ratio of fire smoke.But the smoke effluent design of current high (surpassing) skyscraper, majority still performs about the regulation of smoke controlling according to common skyscraper, this kind of method for designing only considers to be controlled fire smoke under heat buoyancy driving effect, the appreciable impact that after not considering high-rise building with fire disaster, in building, fire smoke is transported by the multiple driving force such as hot pressing, outside wind pressure.Although abroad there being scholar to be paid close attention to these problems, but lacking and further deeply consider, these factors propose challenge to the effectiveness of traditional smoke evacuation measure and Smoke prevention measure.
The These characteristics that (surpassing) skyscraper is possessed so that it is compared with common building, there is bigger fire risk and higher security against fire target, need more perfect security against fire security system.But the most also it being formed without the more perfect specification controlled for (surpassing) fire of high-rise building flue gas or guide, many designers are all felt without ready patterns to follow when running into this type of building.Therefore, it is necessary to (surpassing) skyscraper to be carried out the systematic study in terms of fire smoke transports rule and optimal control.
Summary of the invention
Solution in view of above-mentioned problem in science, the report closing this respect function building is found no in existing technical data, in order to stop the diffusion that spreads of fire smoke, reduce casualties and property loss that fire brings, therefore developed the testing stand of the most a set of control fire spread diffusion.
Fire of high-rise building Regularity of Smoke Movement and control technical research testing stand under a kind of multi-driving force effect, testing stand includes model of high-rise building and outdoor experimental provision.
Further, model of high-rise building is built according to 1/3 ratio；
Further, model of high-rise building includes escalator, staircase, common antechamber, air-supply vertical shaft, smoke shaft, loop corridor, air outlet, exhaust opening, experimental room；
Further, staircase, escalator and common antechamber by loop corridor around, be fire occur time need area to be protected, be the pressurised zone of mechanism contact type sensor；
Further, loop corridor is positioned at the edge, surrounding of testing stand, and when being fire generation, the region of fire smoke is got rid of in proficiency Evacuation area and mechanical smoke extraction, should ensure that the definition in fire floor loop corridor；
Further, smoke shaft is positioned at testing stand one jiao or the testing stand center side towards outdoor, is used for getting rid of cigarette and steam when breaking out of fire；
Further, model of high-rise building at least includes 10 layers；
Further, model of high-rise building room periphery and loop corridor periphery all use transparent fire-resistant glass 8.
Model of high-rise building every layer arranges the exhaust opening of the free open and close state of energy at ceiling, and calculates according to the dimension theory of similarity, arranges the blower fan of respective row smoke.
Staircase includes that vertical shaft, the every alternating floor of described vertical shaft arrange an air outlet open in usual.
Common antechamber is space public at escalator and staircase enabling, every layer of air outlet arranging a freely adjustable open and close state, and staircase and elevator every layer are respectively provided with the door of the freely adjustable open and close state that can lead to described common antechamber.
Common antechamber arranges the door of the freely adjustable open and close state leading to corridor different directions at two at 3,4,5 layers.
Outdoor experimental provision includes mechanism contact type sensor machine, mechanical smoke extraction machine, outdoor wind simulation generator, effusion meter, variable frequency adjustment device, multi-point Temperature Acquisition System, multipoint pressure acquisition system, this device, when fire occurs, provides experiment condition for skyscraper.
The door and window of skyscraper object model uses loose-leaf system, it is simple to regulation open and close state；Variable windowing is reserved in the room on fire of described skyscraper object model in outside, with wind effect outside analysis room；Described air draft cigarette machine is equipped with converter, in order to regulate air quantity and wind speed；The described multi-direction headspace of common antechamber door, in order to change enabling direction.
This utility model establishes a set of entity research platform integrating the several functions such as research skyscraper interior fires developmenting spread rule, the design of mechanical smoke extraction policy optimization and mechanism contact type sensor Smoke prevention effect first, this testing stand is built according to reality building 1: 3 reduced scale, has the advantage that verity is strong, diverse in function, structure are fine, image is practical.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Accompanying drawing 1 is testing stand profile.
Accompanying drawing 2 is stair schematic diagram.
Accompanying drawing 3 is testing stand plane graph.
Drawing reference numeral:
1. smoke shaft 2. loop corridor 3. air delivery duct 4. common antechamber
5. escalator 6. staircase 7. experimental room 8. flame resistant glass
9. outside, hang up people's accommodation stairway 10. frequency conversion fan 11. aerator 12. balustrade
Detailed description of the invention
Being described principle and the feature of the application below in conjunction with accompanying drawing, example is served only for explaining utility model, is not intended to limit scope of the present utility model.
Fire of high-rise building Regularity of Smoke Movement and control technical research test stand under a kind of multi-driving force effect, testing stand includes model of high-rise building and outdoor experimental provision.
Further, model of high-rise building is built according to 1/3 ratio；
Further, model of high-rise building includes that model of high-rise building includes escalator 5, staircase 6, common antechamber 4, air-supply vertical shaft, smoke shaft 1, loop corridor 2, air outlet 2, exhaust opening, experimental room 6；
Further, staircase 6, escalator 5 and common antechamber 4 by loop corridor 2 around, be fire occur time need area to be protected, be the pressurised zone of mechanism contact type sensor；
Further, loop corridor 2 is positioned at the edge, surrounding of testing stand, and when being fire generation, the region of fire smoke is got rid of in proficiency Evacuation area and mechanical smoke extraction, should ensure that the definition in fire floor loop corridor 2；
Further, smoke shaft 1 is positioned at testing stand one jiao or the testing stand center side towards outdoor, is used for getting rid of cigarette and steam when breaking out of fire；
Further, model of high-rise building at least includes 10 layers；
Further, model of high-rise building room periphery and loop corridor 2 periphery all use transparent fire-resistant glass 8.
Model of high-rise building every layer arranges the exhaust opening of the free open and close state of energy at ceiling, and calculates according to the dimension theory of similarity, arranges the blower fan of respective row smoke.
Staircase 6 includes that vertical shaft, the every alternating floor of described vertical shaft arrange an air outlet open in usual.
Common antechamber 4 is space public at escalator 5 and staircase 6 enabling, every layer of air outlet arranging a freely adjustable open and close state, and staircase 6 and every layer of elevator 3 well are respectively provided with the door of the freely adjustable open and close state that can lead to described common antechamber 4.
Common antechamber 4 arranges the door of the freely adjustable open and close state leading to corridor different directions at two at 3,4,5 layers.
Outdoor experimental provision includes mechanism contact type sensor machine, mechanical smoke extraction machine, outdoor wind simulation generator, effusion meter, variable frequency adjustment device, multi-point Temperature Acquisition System, multipoint pressure acquisition system, this device, when fire occurs, provides experiment condition for skyscraper.Impact that building interior combustible HRR is changed by outdoor wind and the simulation aspect of Fire Smoke Temperature distribution influence, testing stand is according to the dimension theory of similarity, that has built 1/3 size simulates room on fire and coupled interior aisle, it is provided with and rationally windows, breeze fan is utilized to simulate generating chamber's exogenous wind, can truly reflect the situation of room endogenous fire calamity development and change under outdoor wind effect, room periphery and annular interior aisle periphery are transparent fire-resistant glass 8 and construct, can be in the outside clear observation experiment process of testing stand and phenomenon.Mechanical smoke extraction effect simulation aspect, testing stand is provided with, in interior aisle different azimuth, hoistway of vertically discharging fume, the exhaust opening that can freely regulate open and close state is set at every layer of close ceiling, calculate according to the dimension theory of similarity, the blower fan of respective row smoke is set, and temperature and speed measuring point are set inside corridor, it is possible to the smoke discharging effect under practical study different situations；
The door and window of skyscraper object model uses loose-leaf system, it is simple to regulation open and close state；Variable windowing is reserved in the room on fire of described skyscraper object model in outside, with wind effect outside analysis room；Described air draft cigarette machine is equipped with converter, in order to regulate air quantity and wind speed；Described common antechamber 4 is multi-direction reserved, in order to change enabling direction.
Under a kind of multi-driving force effect, the test method of fire of high-rise building Regularity of Smoke Movement and control technical research testing stand comprises the following steps:
Any one layer in described model of high-rise building lights combustible；Outside experimental analysis different chamber, wind speed is on indoor combustible HRR, Fire Smoke Temperature Changing Pattern and the impact of fire and smoke spread diffusion velocity；The different impact that fire smoke is spread rule and temperature distributing rule of aisle mechanical smoke extraction facility arrangement in research；The research common antechamber 4 mechanism contact type sensor mouth position impact on cup mechanism contact type sensor Smoke prevention effect；In the case of research mechanism contact type sensor, speed and the rule of pressure distribution in staircase 6 and cup, so that it is determined that the Smoke prevention effect of mechanism contact type sensor；
Further comprising the steps of:
3,4,5 layers of any one layer in described model of high-rise building light combustible；Research 4 the asynchronous Smoke prevention in relative position effects of cup air outlet and common antechamber；The pressure law of difference floor and 6 wind velocity distribution gone out of staircase during research staircase 6 mechanism contact type sensor；Pressure, the regularity of distribution of speed and Smoke prevention effect when research staircase 6, common antechamber 4 are individually blown and blown simultaneously.
The foregoing is only the preferred embodiment of the application, not in order to limit this utility model, all within spirit herein and principle, any modification, equivalent substitution and improvement etc. made, within should be included in the protection domain of the application.
Claims (8)
1. fire of high-rise building Regularity of Smoke Movement and control technical research testing stand under a multi-driving force effect, it is characterised in that described testing stand includes model of high-rise building and outdoor experimental provision,
Described model of high-rise building is built according to 1/3 ratio；
Described model of high-rise building includes escalator, staircase, common antechamber, air-supply vertical shaft, smoke shaft, loop corridor, air outlet, exhaust opening, experimental room；
Described staircase, escalator and common antechamber, by loop corridor around, be fire occur time need area to be protected, be the pressurised zone of mechanism contact type sensor；
Described loop corridor, is positioned at the edge, surrounding of testing stand, and when being fire generation, the region of fire smoke is got rid of in proficiency Evacuation area and mechanical smoke extraction, should ensure that the definition in fire floor loop corridor；
Described smoke shaft is positioned at testing stand one jiao or center, the testing stand one side side towards outdoor, is used for getting rid of cigarette and steam when breaking out of fire；
Described model of high-rise building at least includes 10 layers；
Described model of high-rise building room periphery and loop corridor periphery all use transparent fire-resistant glass.
Fire of high-rise building Regularity of Smoke Movement and control technical research testing stand under multi-driving force effect the most according to claim 1, it is characterized in that, described model of high-rise building every layer arranges the exhaust opening of the free open and close state of energy at ceiling, and calculate according to the dimension theory of similarity, the blower fan of respective row smoke is set.
Fire of high-rise building Regularity of Smoke Movement and control technical research testing stand under multi-driving force effect the most according to claim 1, it is characterised in that described staircase includes that vertical shaft, the every alternating floor of described vertical shaft arrange an air outlet open in usual.
Fire of high-rise building Regularity of Smoke Movement and control technical research testing stand under multi-driving force effect the most according to claim 1, it is characterised in that described common antechamber is space public at escalator and staircase enabling.
5. according to fire of high-rise building Regularity of Smoke Movement under the multi-driving force effect described in claim 1 or 4 and control technical research testing stand, it is characterized in that, described common antechamber every layer arranges the air outlet of a freely adjustable open and close state, and staircase and elevator every layer are respectively provided with the door of the freely adjustable open and close state that can lead to described common antechamber.
6. according to fire of high-rise building Regularity of Smoke Movement under the multi-driving force effect described in claim 1 or 4 and control technical research testing stand, it is characterized in that, described common antechamber arranges the door of the freely adjustable open and close state leading to corridor different directions at two at 3,4,5 layers.
Fire of high-rise building Regularity of Smoke Movement and control technical research testing stand under multi-driving force effect the most according to claim 1, it is characterized in that, outdoor experimental provision includes mechanism contact type sensor machine, mechanical smoke extraction machine, outdoor wind simulation generator, effusion meter, variable frequency adjustment device, multi-point Temperature Acquisition System, multipoint pressure acquisition system, this device, when fire occurs, provides experiment condition for skyscraper.
Fire of high-rise building Regularity of Smoke Movement and control technical research testing stand under multi-driving force effect the most according to claim 1, it is characterised in that the door and window of described skyscraper object model uses loose-leaf system, it is simple to regulation open and close state；Variable windowing is reserved in the room on fire of described skyscraper object model in outside, with wind effect outside analysis room；Described air draft cigarette machine is equipped with converter, in order to regulate air quantity and wind speed；The described multi-direction headspace of common antechamber door, in order to change enabling direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520998451.9U CN205428359U (en) | 2015-12-07 | 2015-12-07 | Mobile law of high -rise building fire smoke and control technical research test bench are down used to masterpieces that drive more |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520998451.9U CN205428359U (en) | 2015-12-07 | 2015-12-07 | Mobile law of high -rise building fire smoke and control technical research test bench are down used to masterpieces that drive more |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205428359U true CN205428359U (en) | 2016-08-03 |
Family
ID=56535999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520998451.9U Expired - Fee Related CN205428359U (en) | 2015-12-07 | 2015-12-07 | Mobile law of high -rise building fire smoke and control technical research test bench are down used to masterpieces that drive more |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205428359U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321419A (en) * | 2015-12-07 | 2016-02-10 | 中国人民武装警察部队学院 | Testbed for studying smoke flow law and control technique of high-rise building fire under action of multiple driving forces |
| CN106228890A (en) * | 2016-09-30 | 2016-12-14 | 中国科学技术大学 | Skyscraper solid fire behavior analogue experiment installation under a kind of ambient wind effect |
-
2015
- 2015-12-07 CN CN201520998451.9U patent/CN205428359U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321419A (en) * | 2015-12-07 | 2016-02-10 | 中国人民武装警察部队学院 | Testbed for studying smoke flow law and control technique of high-rise building fire under action of multiple driving forces |
| CN106228890A (en) * | 2016-09-30 | 2016-12-14 | 中国科学技术大学 | Skyscraper solid fire behavior analogue experiment installation under a kind of ambient wind effect |
| CN106228890B (en) * | 2016-09-30 | 2022-09-06 | 中国科学技术大学 | Three-dimensional fire behavior simulation experiment device of high-rise building under effect of environmental wind |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105321419B (en) | The lower fire of high-rise building Regularity of Smoke Movement of multi-driving force effect and control technology development test platform | |
| Li et al. | Experimental investigation on the characteristics of buoyant plume movement in a stairwell with multiple openings | |
| Alianto et al. | High-rise building fire safety using mechanical ventilation and stairwell pressurization: A review | |
| Shi et al. | Experimental study on influence of stack effect on fire in the compartment adjacent to stairwell of high rise building | |
| CN205428359U (en) | Mobile law of high -rise building fire smoke and control technical research test bench are down used to masterpieces that drive more | |
| Lai et al. | Determinations of the fire smoke layer height in a naturally ventilated room | |
| Wang et al. | Reduced-scale experimental and numerical study of fire in a hybrid ventilation system in a large underground subway depot with superstructures under fire scenario | |
| Sullivan et al. | A contractionless, low-turbulence wind tunnel for the study of free-burning fires | |
| Zhang et al. | Multi-vent module-based adaptive ventilation to reduce cross-contamination among indoor occupants | |
| CN106526069A (en) | Environment wind field simulation unit and environment wind field simulation system applied to fireproof performance test of building exterior wall | |
| Zhang et al. | The effect of exhaust velocity on smoke exhaust in subway platform fire | |
| Cai et al. | Study on law of personnel evacuation in deep buried metro station based on the characteristics of fire smoke spreading | |
| Yan et al. | Study on Evacuation Strategy of Commercial High-Rise Building under Fire Based on FDS and Pathfinder. | |
| CN102380174A (en) | Fire escape system | |
| CN206311571U (en) | It is applied to the surroundings wind field analogue unit and system of external wall fire-protecting test | |
| CN102021984A (en) | Fire safety fire-fighting stairway | |
| Lo et al. | A CFD study of buoyancy effects on smoke spread in a refuge floor of a high-rise building | |
| Yu et al. | Study on smoke control strategy in a high-rise building fire | |
| Luo et al. | Smoke confinement with multi-stream air curtain at stairwell entrance | |
| CN100435888C (en) | centrifugal fire smoke-proof air curtain | |
| Long et al. | Experimental study on the vertical temperature and thermal stratification for subway station fire | |
| WZ Black PhD | Stairwell pressurization and the movement of smoke during a high-rise fire | |
| CN102563733A (en) | Airflow closed type kitchen auxiliary smoke exhaust system with U-shaped edge part | |
| Kim et al. | Study on the smoke control performance of air curtains in emergency stairwells of multi-unit residential buildings | |
| Zhang et al. | Numerical investigation of a novel diffuse wall ventilation: thermal comfort and cross-infection control effectiveness |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20181207 |