CN109859561A - Meet under fire working cup difference towards the platform and method of gravity-flow ventilation - Google Patents
Meet under fire working cup difference towards the platform and method of gravity-flow ventilation Download PDFInfo
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- CN109859561A CN109859561A CN201910280113.4A CN201910280113A CN109859561A CN 109859561 A CN109859561 A CN 109859561A CN 201910280113 A CN201910280113 A CN 201910280113A CN 109859561 A CN109859561 A CN 109859561A
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- 238000009423 ventilation Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000779 smoke Substances 0.000 claims abstract description 28
- 238000002474 experimental method Methods 0.000 claims description 11
- 230000009970 fire resistant effect Effects 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 2
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 7
- 230000002265 prevention Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The invention discloses meet cup difference under fire working mainly to solve the problems, such as existing in the prior art there is no for the means and scheme that smoke proof staircase cup difference is studied towards the ventilation effect reliability of natural ventilation port under fire working towards the platform and method of gravity-flow ventilation.The platform includes staircase ontology, the cup being connect with staircase ontology, the room on fire being connected to cup, the casement window being provided on cup wall, air curtain system on the outside of cup is set, it is mounted in staircase ontology, cup and room on fire and is used for the acquisition instrument group of temperature collection, smoke density and wind speed, the data collector connecting with acquisition instrument group by signal, and is connect by data line with data collector and is used to show the PC machine with statistics gatherer data.Through the above scheme, invention achieves to the different purposes tested towards natural ventilation port ventilation effect, there is very high practical value and promotional value.
Description
Technical field
The invention belongs to fire-fighting domains, in particular, being to be related to meeting under fire working cup difference towards gravity-flow ventilation
Platform and method.
Background technique
Cup, which is the stream of people, is entering Fire lift, smoke proof staircase or not before the enclosed stairwell of gravity-flow ventilation
Excessive space is usually set to Fire lift entrance for personnel's passage, the cubicle of evacuation, or is set to smoke proof staircase
Entrance is to prevent flue gas from entering the cubicle of smoke proof staircase, its Smoke prevention measure includes nature smoke-stop and machinery under normal conditions
Two kinds of Smoke prevention.
3.1.3 item in " building Smoke prevention smoke evacuation system technical standard " GB51251-2017 proposes (" fire protection design of building rule
Model " the 8.5.1 item in GB50016-2014 is similar, and is strong item), public building of the building height less than or equal to 50m and industry
Building, building height be less than or equal to 100m residential housing, smoke proof staircase, independent cup, common antechamber, share cup and
The room before the fire hydrant elevator should use natural ventilation system;When that natural ventilation system cannot be arranged, Ying Caiyong mechanism contact type sensor system
System.
The selection of fume-resisting system should meet when independent cup or common antechamber meet following condition for the moment, and staircase can
It is not provided with fume-resisting system: (1) using open balcony or recessed corridor, (2) open exterior window equipped with two or more difference direction,
And independent two exterior window areas of cup are not less than 2.0m respectively2, two exterior window areas of common antechamber are not less than 3.0m respectively2。
" cup or common antechamber have different directions open exterior window " in provision does not have in related specifications and standard
Have the definition of clearly different directions, regulation do not made between the distance the exterior window of different directions yet, when design it is possible that
The case where meeting code requirement but cannot be guaranteed natural draught system effect.Therefore, one kind is designed dedicated for Smoke prevention under fire working
The full-scale platform of staircase cup difference towards gravity-flow ventilation reliability consideration becomes skilled artisan urgently
The technical issues of solution.
Summary of the invention
The purpose of the present invention is to provide meet platform and method of the cup difference towards gravity-flow ventilation, master under fire working
Solve it is existing in the prior art there is no under fire working smoke proof staircase cup difference towards natural ventilation port
The problem of means and scheme that ventilation effect reliability is studied.
To achieve the goals above, The technical solution adopted by the invention is as follows:
Meet the platform of cup difference under fire working towards gravity-flow ventilation, including staircase ontology, with staircase ontology
The cup connected by fire resistant doorsets is connected to cup by door opening and is used to simulate room on fire on fire, several to be provided with cup
The air curtain system that air quantity and wind direction on the outside of cup and to external ambient wind are adjusted is arranged in casement window on different walls
System is mounted in staircase ontology, cup and room on fire and is used for the acquisition instrument group of temperature collection, smoke density and wind speed, with
The data collector that acquisition instrument group is connected by signal, and by data line connect with data collector and be used for display and
The PC machine of statistics gatherer data.
Further, the acquisition instrument group include be separately positioned on staircase ontology, cup and room wall on fire and
The first acquisition instrument group, the second acquisition instrument group and the third acquisition instrument group being connect with data collector signal.
Further, the first acquisition instrument group is distributed on this walling of staircase including four and acquires with data
First thermocouple of device signal connection.
Further, the second acquisition instrument group include five be distributed on cup wall and with data collector signal
Second thermocouple of connection, four are distributed on cup wall and the anemobiagraph connecting with data collector signal and one
For monitoring the smoke density instrument of smoke density.
Specifically, the third acquisition instrument group include three be distributed on room wall on fire and with data collector signal
The third thermocouple of connection, wherein the first thermocouple, the second thermocouple are identical with third thermocouple structure.
Meet cup difference under fire working to include the following steps: towards the method for gravity-flow ventilation
(S1) platform as claimed in any one of claims 1 to 5 is built, lights fire source in interior on fire;
(S2) according to different experiment conditions, it is determined whether to enable casement windows and fire resistant doorsets;
(S3) staircase sheet is acquired by the first acquisition instrument group, the second acquisition instrument group and third acquisition instrument group respectively
Body, cup and indoor relevant parameter information on fire, and pass through signal transmission form for collected parameter through data collector
It is sent in PC machine and shows and save;
(S4) it moving air curtain system and is configured according to air quantity and wind direction of the experiment demand to ambient wind in platform;
(S5) phase of the first acquisition instrument group, the second acquisition instrument group and the acquisition of third acquisition instrument group is shown by PC machine
It closes parameter information and saves;
(S6) after testing, the monitoring information stored in PC machine is analyzed, judged, is arranged.
Compared with prior art, the invention has the following advantages:
(1) proposed by the present invention a kind of logical towards natural ventilation port dedicated for smoke prevention staircase cup difference under fire working
The reliability and associated safety enhancements of wind effect carry out the platform of research and experimental verification, have filled up in industry in the field
Research blank;By the platform applied the present invention under fire working, the research achievement of acquisition can be existing fire protection rule
System revision solid technical support is provided, make the design of the natural draught system mouth of smoke proof staircase cup and build to examine have method can
According to, have something to base on;And the configuration of the present invention is simple, design are rationally, easy to use, precisely simultaneously by acquisition instrument group institute measured data
And it is representative strong.
(2) natural draught system mouth of the present invention is opened flat window position and fire source power and can be adjusted according to actual needs, this
Sample both can more truely and accurately reflect different fire scenarios;This platform high degree of automation simultaneously, air curtain system can be real
Now to the adjusting of air quantity and wind direction, thermocouple, smoke density instrument and the collected data of anemobiagraph can also pass through data collector reality
When be transmitted to Computer display and storage.
(3) present invention not only allows for entirety and has also contemplated key in the arrangement of thermocouple, smoke density instrument and anemobiagraph
Position is provided with collection point in the middle part of room on fire, cup and staircase, is also provided with collection point at the multiple natural mouths of cup,
Ensure that the representativeness and authenticity of the acquired data of the present invention.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention.
Fig. 2 is the mounting structure schematic diagram of the first acquisition instrument group of the invention.
Fig. 3 is the mounting structure schematic diagram of the second acquisition instrument group of the invention.
Fig. 4 is the mounting structure schematic diagram of third acquisition instrument group of the invention.
In above-mentioned attached drawing, the corresponding component names of appended drawing reference are as follows:
1- staircase ontology, 2- cup, the room on fire 3-, 4- casement window, 5- air curtain system, 6- data collector, 7-PC machine,
The first thermocouple of 8-, the second thermocouple of 9-, 10- anemobiagraph, 11- smoke density instrument, 12- third thermocouple, 13- fire source.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples, and embodiments of the present invention include but is not limited to
The following example.
Embodiment
As shown in Figures 1 to 4, meet cup difference under fire working platform and method towards gravity-flow ventilation, including building
Ontology 1 between ladder, the cup 2 being connect with staircase ontology 1 by fire resistant doorsets are connected to cup 2 by door opening and are used to simulate
The room on fire 3 of fire, several casement windows 4 being provided on the different walls of cup 2, setting is in 2 outside of cup and to external ambient wind
Air quantity and the air curtain system 5 that is adjusted of wind direction, be mounted in staircase ontology 1, cup 2 and room on fire 3 and for acquiring
The acquisition instrument group of temperature, smoke density and wind speed, the data collector 6 being connect with acquisition instrument group by signal, and pass through
Data line connect with data collector 6 and for showing and the PC machine 7 of statistics gatherer data.
It is bulky and hulking in order to avoid platform when carrying out platform building, therefore 2 part of cup is set using conventional full-size
Meter, staircase ontology 1 and room on fire 3 are designed using reduced scale, which can take into account true and reliable and compact-sized two side
Face characteristic.
Early-stage preparations: 13 position of fire source is arranged at the middle part of room 3 on fire, and three third thermocouples 12 have been mounted on
The surface of fiery 3 fire source 13 of room is in genesis analysis, and the position distribution apart from ceiling is 0m, 0.5m and 1m (such as Fig. 4);And it puts down
The casement window 4 of platform is to be provided on all positions that can be opened a window of cup 2, and meet the related request in background technique, is put down
Windowing 4 specifically opens up situation as shown in Figure 1, the side that air curtain system 5 is located at 2 wall of cup (is not the building connecting with cup 2
3 place side of ontology 1 and room on fire between ladder), 5 equipment of air curtain system itself can move placement position, and the air outlet in system is also
The adjustment of wind speed and direction can be carried out according to experiment demand, the present invention can more truely and accurately be reflected not using above equipment
Same fire scenario, greatly extends the scope of application of the invention.It is distributed and pacifies in the centre of cup 2, door opening and the window's position
Anemobiagraph 10 is filled, three are located at three face wall bodies of cup, can be moved to corresponding position according to the difference of windowing position, in addition
One is located on cup 2 and the fire resistant doorsets of 1 junction of staircase ontology, and is located in cup 2, five second heat set in addition
Wherein four set-up modes of galvanic couple 9 are identical as anemobiagraph 10, and in addition one is set to 2 medium position of cup, while by cigarette
Densimeter 11 is mounted on the inside (such as Fig. 3) of cup 2, and wherein the best door opening of smoke density instrument 11 is installed in parallel;In staircase ontology 1
It is middle by four the first thermocouple genesis analysis in staircase ontology 1, and simulate conventional home building height and be configured, it is average
Interval height is 3m (such as Fig. 2).
When test: lighting fire source 13, it is determined whether to enable casement windows 4 and fire resistant doorsets according to different experiment conditions, and will
Air curtain system 5 accesses power supply preparation, after fire source 13 blazes up, in interconnected cup 2 and room on fire 3 inherently
It heats up and is full of smog, second and third thermocouple being arranged in cup 2 and room on fire 3 at this time is real by collected temperature information
When transferred information in data collector 6 by wired or wireless transmission mode, with data collector 6 pass through data line connect
The PC machine 7 that connects carries out real-time display and the smoke density instrument 11 that saves, while being arranged in cup 2 is by indoor smokescope information
It feeds back in PC machine 7, with the increase of smokescope, air curtain system 5 is moved in not timing, and according to experiment demand pair
The air quantity and wind direction of ambient wind are configured in platform, to observe the wind speed information of the acquisition of anemobiagraph 10, and PC machine 7 is observed
In the case where different wind directions, the data situation of each anemobiagraph 10, smoke density instrument 11 and second and third thermocouple monitoring,
Simultaneously because staircase ontology 1 is connect with cup 2 by fire resistant doorsets, since fire resistant doorsets can obstruct certain heat and smog,
By PC machine 7 observe staircase ontology 1 in the first thermocouple 8 monitoring information, then sustained combustion after a certain period of time, to PC
The monitoring data information saved in machine 7 is analyzed and determined, wherein the air curtain system and data collector in the present invention are existing
There is technology, therefore no longer its working principle is repeated in the present invention.
The type of different experiment conditions according to whether open casement window, open casement window position, whether open it is anti-
Vent and different, such as experiment scene A: opening west side and each one square of the window in east side, staircase ontology and cup it is anti-
Vent is closed, and air curtain system is closed;Experiment scene B: east side and each one square of the window in southern side are opened, staircase ontology is with before
The fire resistant doorsets of room are opened, and air curtain system is closed;Experiment scene C: west side and each one square of the window in southern side, staircase sheet are opened
The fire resistant doorsets of body and cup are closed, and air curtain system is opened, and setting wind direction is west wind, and wind speed is 2m/s etc., wherein west side, east side
The equal nouns of locality are described according to the positional relationship in Fig. 1, and the north side that staircase ontology in Fig. 1 is located at cup is defaulted.
By the platform applied the present invention under fire working, the research achievement of acquisition can be the system of existing fire protection rule
Revision provides solid technical support, and examining the design of the natural draught system mouth of smoke proof staircase cup and building, equal there are laws to abide by, has
According to can follow;And the configuration of the present invention is simple, design are rationally, easy to use, and generation accurate by acquisition instrument group institute measured data
Table is strong.
Above-described embodiment is merely a preferred embodiment of the present invention, and it is not intended to limit the protection scope of the present invention, as long as using
Design principle of the invention, and the non-creative variation worked and made is carried out on this basis, it should belong to of the invention
Within protection scope.
Claims (6)
1. meeting under fire working cup difference towards the platform of gravity-flow ventilation, which is characterized in that including staircase ontology (1),
The cup (2) being connect with staircase ontology (1) by fire resistant doorsets is connected to cup (2) by door opening and is used to simulate on fire
Room (3) on fire, several casement windows (4) being provided on the different walls of cup (2), setting is on the outside of cup (2) and to external rings
The air curtain system (5) that the air quantity and wind direction of border wind are adjusted is mounted on staircase ontology (1), cup (2) and room on fire (3)
In and be used for the acquisition instrument group of temperature collection, smoke density and wind speed, data acquisition connect with acquisition instrument group by signal
Device (6), and connect by data line with data collector (6) and be used to show and the PC machine of statistics gatherer data (7).
2. the cup difference according to claim 1 that meets under fire working is towards the platform of gravity-flow ventilation, which is characterized in that
The acquisition instrument group includes being separately positioned on staircase ontology (1), cup (2) and room on fire (3) wall and adopting with data
The first acquisition instrument group, the second acquisition instrument group and the third acquisition instrument group of storage (6) signal connection.
3. the cup difference according to claim 2 that meets under fire working is towards the platform of gravity-flow ventilation, which is characterized in that
The first acquisition instrument group includes four and is distributed on staircase ontology (1) wall and connect with data collector (6) signal
The first thermocouple (8).
4. the cup difference according to claim 3 that meets under fire working is towards the platform of gravity-flow ventilation, which is characterized in that
The second acquisition instrument group include five be distributed on cup (2) wall and connect with data collector (6) signal second
Thermocouple (9), four anemobiagraphs (10) for being distributed on cup (2) wall and being connect with data collector (6) signal, Yi Jiyi
Prop up the smoke density instrument (11) for monitoring smoke density.
5. the cup difference according to claim 4 that meets under fire working is towards the platform of gravity-flow ventilation, which is characterized in that
The third acquisition instrument group include three be distributed on room on fire (3) wall and connect with data collector (6) signal the
Three thermocouple (12), wherein the first thermocouple (8), the second thermocouple (9) are identical with third thermocouple (12) structure.
6. meeting under fire working cup difference towards the method for gravity-flow ventilation, which comprises the steps of:
(S1) platform as claimed in any one of claims 1 to 5 is built, lights fire source in interior on fire;
(S2) according to different experiment conditions, it is determined whether to enable casement windows and fire resistant doorsets;
(S3) by the first acquisition instrument group, the second acquisition instrument group and third acquisition instrument group acquire respectively staircase ontology,
Cup and indoor relevant parameter information on fire, and transmitted collected parameter through data collector by signal transmission form
It shows and saves on to PC machine;
(S4) it moving air curtain system and is configured according to air quantity and wind direction of the experiment demand to ambient wind in platform;
(S5) related ginseng that the first acquisition instrument group, the second acquisition instrument group and third acquisition instrument group acquire is shown by PC machine
Number information simultaneously saves;
(S6) after testing, the monitoring information stored in PC machine is analyzed, judged, is arranged.
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CN201910280113.4A CN109859561B (en) | 2019-04-09 | 2019-04-09 | Platform and method for meeting natural ventilation of front chamber in different directions under fire working condition |
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Cited By (3)
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---|---|---|---|---|
CN112233484A (en) * | 2020-09-18 | 2021-01-15 | 北京格林美尔科技有限公司 | Smoke and fire special effect training device and system |
CN114622744A (en) * | 2022-01-14 | 2022-06-14 | 上海品览数据科技有限公司 | Automatic judgment method for smoke prevention measures of heating and ventilation special staircases and front rooms |
CN114626121A (en) * | 2022-01-14 | 2022-06-14 | 上海品览数据科技有限公司 | Automatic arrangement method for pressurization system of ground part of central building in heating and ventilation profession |
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CN114622744A (en) * | 2022-01-14 | 2022-06-14 | 上海品览数据科技有限公司 | Automatic judgment method for smoke prevention measures of heating and ventilation special staircases and front rooms |
CN114626121A (en) * | 2022-01-14 | 2022-06-14 | 上海品览数据科技有限公司 | Automatic arrangement method for pressurization system of ground part of central building in heating and ventilation profession |
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