CN108072679A - A kind of electric shaft fire behavior test platform - Google Patents
A kind of electric shaft fire behavior test platform Download PDFInfo
- Publication number
- CN108072679A CN108072679A CN201810052432.5A CN201810052432A CN108072679A CN 108072679 A CN108072679 A CN 108072679A CN 201810052432 A CN201810052432 A CN 201810052432A CN 108072679 A CN108072679 A CN 108072679A
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- vertical shaft
- electric power
- test platform
- behavior test
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 239000000779 smoke Substances 0.000 claims abstract description 26
- 230000004888 barrier function Effects 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 238000004458 analytical method Methods 0.000 abstract description 5
- 238000002474 experimental method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 10
- 239000000523 sample Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fire Alarms (AREA)
Abstract
The invention discloses a kind of electric shaft fire behavior test platforms, including vertical shaft, the vertical shaft is column structure, is vertically provided with the forceful electric power bridge joint of closing and light current crane span structure in vertical shaft respectively, forceful electric power cable and weak-current cable are respectively arranged in forceful electric power crane span structure and light current crane span structure；Silo bottom is provided with the heat source to forceful electric power cable and/or weak-current cable heating；Temperature sensor and smoke detector are provided at different height in vertical shaft.A kind of the advantages of electric shaft fire behavior test platform provided by the invention, is：Fire spread process is reduced by multiple angles such as temperature, gas componant and concentration and graphical analyses, and it can be used in evaluating the factors such as cable type, fire barrier species and set-up mode, cable testing bridge species and strong and weak cable laying spacing respectively, so as to draw the electric shaft fire control plan of more science by experiment, have a good application prospect.
Description
Technical field
The present invention relates to electric shaft technical field more particularly to a kind of electric shaft fire behavior test platforms.
Background technology
Electric shaft wiring is the main system of laying of vertical distributiong main use in multilayer and high-rise, actual work
Cheng Zhong, often power circuit and non-electricity circuit coexist in same electric shaft, power line cables mesohigh, low pressure and emergent
The often centralized arrangement, and throughout the year in operation febrile state such as electric wiring cable of power supply, improper ventilation contacts aging etc. all
It is likely to cause fire incident.Electric shaft occurs easily to generate stack effect during fire, and fire spread is rapid, and its generation
A large amount of high temperature toxic smogs seriously affect safety evacuation, and fire attack difficulty is larger, once fire, which occurs, will cause seriously
Consequence.
In recent years, electric shaft fire happens occasionally.Electric system is to electric shaft fire prevention pay attention to day by day, from security standpoint
The electric shaft improvement project set out increases year by year.But existing national standards (GB 50054-2011, GB 50016-2014,
GB 50217-2007), national sector standard (JGJ16-2008) and standard collective drawings (06D105,08D800-6) pairing electricity consumption
High pressure, low pressure and emergency power supply electric wiring and power supply and non-powered circuit in gas vertical shaft, only propose and isolation are taken to arrange
The basic demand applied.In Practical Project, and there is no ripe fire separation schemes.Foreign countries there is also some relevant criterions,
Such as NFPA70-2014《National Electrical specification》In only to the electric shaft under different application site conditions, it is proposed that macroscopic view
Fire protection requirement (electric wiring in shaft structure should not be significantly increased fire or combustion product sprawling possibility, fire prevention point
Barrier material should have identical flame retardancy grade with building element), but pairing is not made with the horizontal fire separation of electric shaft
It is required that.
To sum up, both at home and abroad share the high pressure in electric shaft, low pressure and emergency power supply electric wiring and power supply with it is non-
Supply line, fire separation material thermal characteristics and selecting method, fire separation measure of merit technology and strong and weak separated fire prevention point
Every scheme etc., without effective solution.Therefore, the assessment of electric shaft fire hazard is carried out, and to electric shaft
Fire barrier set-up mode, the strong and weak specific system of laying of cable assess most important.
The content of the invention
The technical problems to be solved by the invention be to provide it is a kind of can to the fire spread process in electric shaft into
The electric shaft fire behavior test platform of row analysis.
The present invention is to solve above-mentioned technical problem by the following technical programs：
A kind of electric shaft fire behavior test platform, including vertical shaft, the vertical shaft is column structure, edge respectively in vertical shaft
Vertical direction is provided with the forceful electric power bridge joint of closing and light current crane span structure, and forceful electric power cable is respectively arranged in forceful electric power crane span structure and light current crane span structure
And weak-current cable；Silo bottom is provided with the heat source to forceful electric power cable and/or weak-current cable heating；In vertical shaft at different height
It is provided with temperature sensor and smoke detector.
Preferably, the vertical shaft is cube structure, and vertical shaft front is provided with the transparent observing door for being capable of activity opening, sees
It examines side in front of the door and is provided with the video acquisition device that image range covers entire vertical shaft.
Preferably, forceful electric power crane span structure is detachably secured on the side wall of vertical shaft one side, between the forceful electric power cable of difference in functionality
It is separated by fire barrier, on the side wall where forceful electric power crane span structure, is vertically evenly arranged with multiple smoke detectors..
Preferably, a movable wall is further included in vertical shaft, the activity wall is parallel with shaft wall and can change
Position in vertical shaft, light current crane span structure are detachably secured to movable wall close to the one side of forceful electric power crane span structure.
Preferably, vertical shaft upper and lower surface and multiple grooves are evenly arranged with below, the activity wall is inserted with groove cooperation
It connects and is fixed in vertical shaft.
Preferably, it is both provided between two adjacent grooves of shaft top and between groove and adjacent side wall and side
The parallel smoke outlet of wall.
Preferably, shaft top be respectively provided with by each smoke outlet there are one PIV smoke particles speed pop one's head in.
Preferably, movable wall and being provided on the side wall of forceful electric power crane span structure uniformly divides at least provided with a row along short transverse
The wall temperature sensor of cloth.
Preferably, it is both provided at least between two adjacent grooves of shaft top and between groove and adjacent side wall
One fire extinguishing sprayer.
Preferably, it is both provided at least between two grooves adjacent inside vertical shaft and between groove and adjacent side wall
The gas temperature sensor that one row are uniformly arranged along short transverse.
A kind of the advantages of electric shaft fire behavior test platform provided by the invention, is：Pass through temperature, gas componant
Fire spread process is reduced with multiple angles such as concentration and graphical analyses, and can be used in cable type, fire barrier kind
The factors such as class and set-up mode, cable testing bridge species and strong and weak cable laying spacing are evaluated respectively, so as to pass through experiment
It draws the electric shaft fire control plan of more science, has a good application prospect.
Description of the drawings
Fig. 1 is a kind of schematic diagram for electric shaft fire behavior test platform that the embodiment of the present invention is provided；
Fig. 2 is a kind of front view for electric shaft fire behavior test platform that the embodiment of the present invention provides；
Fig. 3 is sectional views of the Fig. 2 along A instructions direction；
Fig. 4 is sectional views of the Fig. 2 along B instructions direction；
Fig. 5 is the enlarged drawing that Fig. 4 is C regions.
Specific embodiment
Understand to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in further detail.
As shown in Figure 1, a kind of electric shaft fire behavior test platform, including vertical shaft 1, electric shaft is big in actual building
All it is the cube structure built along construction wall, vertical shaft 1 provided in this embodiment is using electrical with the individual layer in traditional architecture
Vertical shaft 1 can also be designed as other classes by the essentially identical cube structure of vertical shaft, those of ordinary skill in the art as needed
Like structure, and thus other concrete structures are made with adaptation modification.With direction shown in FIG. 1,1 front of vertical shaft is provided with being capable of activity
The transparent observing door (not shown) of opening, to adjust the topology layout inside vertical shaft 1 and to replace component；Side is set in front of the door for observation
Entire 1 positive video acquisition device (not shown) of vertical shaft can be covered by being equipped with image range, and the video acquisition device is preferred
For video camera.
Vertical shaft 1 is internally provided with the forceful electric power crane span structure 2 being vertically arranged and light current crane span structure 3, in forceful electric power crane span structure 2 and light current crane span structure 3
Forceful electric power cable 21 and weak-current cable 31 are respectively arranged with, 1 bottom of vertical shaft is provided with to be connect with forceful electric power cable 21 and/or weak-current cable 31
Tactile heat source (not shown), place is provided with multiple temperature sensors (41,42) and smoke detector at various height in vertical shaft 1
5.In preferred embodiment, the heat source makes forceful electric power cable 21 or weak-current cable using radiation of power heating unit is determined, by radiation
31 burnings, then according to the numerical value of various kinds of sensors and the image of video acquisition device, determine fire spreading process, so as to perpendicular
Fire tendency inside well has sufficient understanding.
In order to ensure to have inside vertical shaft 1 sufficient oxygen current supply cable burning, 1 top of vertical shaft offers at least one smoke outlet
14, it is in preferred embodiment that forceful electric power bridge formation 2 is removably solid in order to evaluate the specific system of laying between strong and weak cable
Due on the side wall of 1 one side of vertical shaft, i.e. fixed sidewall 11 is additionally provided with a movable wall 12, the activity wall inside vertical shaft 1
12 is parallel with fixed sidewall 11, and can change the position in vertical shaft 1, non-ignitable identical with 1 use of vertical shaft of movable wall 12
Material is made, and movable wall 12 is identical with the specification of fixed sidewall 11.Light current crane span structure 3 is detachably secured to movable wall 12
Close to the one side of forceful electric power crane span structure 2, so as to form an independent vertical shaft model, heat between movable wall 12 and fixed sidewall 11
Source is fixedly installed on 21 side of forceful electric power cable.The upper and lower surface and rear surface of vertical shaft 1 are provided with multiple to be clamped with movable wall 12
The groove 13 of cooperation, movable wall 12 are plugged in groove 13 completely to separate vertical shaft 1.Fixed sidewall 11 and with its phase
At least provided with a smoke outlet 14 between adjacent groove 13, so as to movable wall 12 and the groove 13 near fixed sidewall 11
During cooperation, the space where strong and weak electricity crane span structure can carry out air exchange with the external world.
Multiple smoke detectors 5 are vertically provided on fixed sidewall 11, smoke detector 5 being capable of collecting shaft 1
Interior gas, each smoke detector 5 are corresponded to there are one fume component analysis device (not shown), can record the position in real time
The gas componant measured changes and is detecting carbon monoxide automatic alarm when fire characteristics gas content reaches certain value.
When carrying out fire protecting performance evaluation to different cable materials or technique, can by the heat source of similary power to forceful electric power cable 21 into
Row heating, different fireproofing of cable performances are tentatively judged according to the difference of 5 time of fire alarming of smoke detector.
The wall temperature sensor 41 that multiple row is vertically uniformly arranged is provided on the fixed sidewall；In addition,
At least one row are both provided between two grooves 13 and between groove 13 and adjacent two side walls uniformly to set along short transverse
The gas temperature sensor 42 put, the gas temperature sensor 42 on same vertical direction are fixed on a stent being vertically arranged
Can be supplied on 421, and inside stent 421 temperature sensor 42 connect up to avoid by circuit by influence of fire.So as to
Temperature change at 12 different position of 1 inside of record vertical shaft and fixed sidewall 11 and movable wall in real time.In preferred embodiment,
The wall temperature sensor 41 is the platinum filament thermocouple probe of 0.01-0.5mm, and gas temperature sensor 42 is the platinum of 1-2mm
Silk thermocouple probe.
1 top of vertical shaft is additionally provided with PIV smoke particles speed probe 6, the PIV smoke particles speed probe by smoke outlet 14
6 are arranged at smoke outlet 14 close to the one side of fixed sidewall 11, the smoke particle rate of propagation being able to record inside vertical shaft 1.In order to anti-
Only the intensity of a fire is out of control, and fire extinguishing system (not shown) is additionally provided in vertical shaft 1, and the fire extinguishing system includes being arranged at 1 top of vertical shaft
It goes out in the space that fire extinguishing sprayer 7, each groove 13 and groove 13 are separated with 1 both sides partition plate of vertical shaft at least provided with one
Fire-fighting first 7.
When using electric shaft fire behavior test platform provided by the invention, type of cable, electricity can be adjusted respectively
The factors such as the distance between cable crane span structure type, movable wall type, forceful electric power cable 21 and weak-current cable 31 test fire change respectively
Change trend, so as to select the electric shaft plan of establishment of optimization.According to professional standard, anti-fire screen should be used between different cables
Plate 8 separates, it is contemplated that the present invention may be use with the parameters such as type, specific set-up mode of evaluation fire barrier.
When making a concrete analysis of vertical shaft endogenous fire calamity situation of change, heating forceful electric power cable 21 by heat source makes it catch fire, and records
The time of the alarm of smoke detector 5 first is energized to from heat source, while records fire process wall temperature sensor 41, gas
The numerical value of temperature sensor 42, smoke detector 5 and PIV smoke particles speed probe, and draw the intensity of a fire with reference to video acquisition device
The image of sprawling process so as to analyzing fire spread characteristic, and aids in determining the specific plan of establishment of vertical shaft with this.
Particular embodiments described above has carried out the purpose of the present invention, technical solution and advantageous effect further in detail
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to limit the invention, not
It is any modification that those of ordinary skill in the art make the present invention, equivalent on the premise of departing from the spirit and principles in the present invention
Replace, improve etc., it should all fall within the protection domain that claims of the present invention determines.
Claims (10)
1. a kind of electric shaft fire behavior test platform, it is characterised in that：Including vertical shaft, the vertical shaft is column structure, is erected
The forceful electric power bridge joint of closing and light current crane span structure are vertically provided in well respectively, is set respectively in forceful electric power crane span structure and light current crane span structure
There are forceful electric power cable and weak-current cable；Silo bottom is provided with the heat source to forceful electric power cable and/or weak-current cable heating；In vertical shaft
Temperature sensor and smoke detector are provided at different height.
2. a kind of electric shaft fire behavior test platform according to claim 1, it is characterised in that：The vertical shaft is vertical
Cube structure, vertical shaft front are provided with the transparent observing door for being capable of activity opening, and side is provided with image range covering in front of the door for observation
The video acquisition device of entire vertical shaft.
3. a kind of electric shaft fire behavior test platform according to claim 2, it is characterised in that：Forceful electric power crane span structure is removable
That unloads is fixed on the side wall of vertical shaft one side, is separated between the forceful electric power cable of difference in functionality by fire barrier；Forceful electric power crane span structure institute
Side wall on, be vertically evenly arranged with multiple smoke detectors.
4. a kind of electric shaft fire behavior test platform according to claim 3, it is characterised in that：It is further included in vertical shaft
One movable wall, the activity wall is parallel with shaft wall and can change the position in vertical shaft, and light current crane span structure is detachable
Be fixed on movable wall close to the one side of forceful electric power crane span structure.
5. a kind of electric shaft fire behavior test platform according to claim 4, it is characterised in that：Vertical shaft upper and lower surface
And multiple grooves are evenly arranged with below, the activity wall coordinates plugged and fixed in vertical shaft with groove.
6. a kind of electric shaft fire behavior test platform according to claim 5, it is characterised in that：Shaft top is adjacent
Two grooves between and groove and adjacent side wall between be both provided with the smoke outlet parallel with side wall.
7. a kind of electric shaft fire behavior test platform according to claim 6, it is characterised in that：Shaft top is every
PIV smoke particles speed is popped one's head in there are one being respectively provided with by a smoke outlet.
8. a kind of electric shaft fire behavior test platform according to claim 4, it is characterised in that：It movable wall and sets
It is equipped on the side wall of forceful electric power crane span structure and is arranged at least provided with one along the equally distributed wall temperature sensor of short transverse.
9. a kind of electric shaft fire behavior test platform according to claim 6, it is characterised in that：Shaft top is adjacent
Two grooves between and groove and adjacent side wall between be both provided at least one fire extinguishing sprayer.
10. a kind of electric shaft fire behavior test platform according to claim 6, it is characterised in that：Phase inside vertical shaft
It is both provided with what at least one row were uniformly arranged along short transverse between two adjacent grooves and between groove and adjacent side wall
Gas temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052432.5A CN108072679A (en) | 2018-01-19 | 2018-01-19 | A kind of electric shaft fire behavior test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052432.5A CN108072679A (en) | 2018-01-19 | 2018-01-19 | A kind of electric shaft fire behavior test platform |
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| Publication Number | Publication Date |
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| CN108072679A true CN108072679A (en) | 2018-05-25 |
Family
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| CN201810052432.5A Pending CN108072679A (en) | 2018-01-19 | 2018-01-19 | A kind of electric shaft fire behavior test platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760792A (en) * | 2018-05-26 | 2018-11-06 | 公安部四川消防研究所 | Experiment porch for evaluating electric shaft fire resistance and its detection method |
| CN113866216A (en) * | 2021-10-25 | 2021-12-31 | 山东电力研究院 | Perfluorohexanone extinguishing device test platform for cable trench fire |
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|---|---|---|---|---|
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