CN107449864A - A kind of more scene cable fire Gas Parameters evaluation and test platforms and evaluating method - Google Patents
A kind of more scene cable fire Gas Parameters evaluation and test platforms and evaluating method Download PDFInfo
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- CN107449864A CN107449864A CN201710678522.0A CN201710678522A CN107449864A CN 107449864 A CN107449864 A CN 107449864A CN 201710678522 A CN201710678522 A CN 201710678522A CN 107449864 A CN107449864 A CN 107449864A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/024—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving gases
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
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Abstract
A kind of more scene cable fire Gas Parameters evaluation and test platforms and evaluating method, including cable duct well simulating chamber, radiant heating device, refractory ceramics plate, assay balance, overload flow analogue means, temperature measuring equipment, gas analyzing apparatus, optics smoke density measurement apparatus, data collecting system, integrated console, frequency conversion fan and smoke collecting pipeline.Optics smoke density measurement apparatus measurement end includes feux rouges direct projection, blue light direct projection and scattering light source, by cable under test on refractory ceramics plate, turn on the power, two thermocouples are mounted in the surface and inside of cable under test, Commissioning Analysis balance, optics smoke density measurement apparatus and gas analyzing apparatus, the wind speed of frequency conversion fan is selected, selection overload, excessively stream and/or external heat source radiate scene on fire, start simulation test.The present invention a variety of scenes on fire can be simulated in identical platform and the compound research to the loss of cable fire cable quality, temperature change, smoke components and flue gas light-proofness.
Description
Technical field
The present invention relates to cable fire smoke property and Detection Techniques scientific research platform, is especially a kind of more scene electricity
Cable fire smoke parameter evaluates and tests platform and evaluating method.
Background technology
Main media of the cable as power transmission and information transmission, is widely used in various places.In order to facilitate pipe
Reason and maintenance, cable centralized arrangement turn into a kind of trend, and substantial amounts of ground electrical power circuit " lower ground " is changed into cable duct, and builds
The inner cable vertical shaft scale of construction and scale are also increasing, and the thing followed is (or the cable of the cable duct as caused by various reasons of fire
Well) fire number sharply increases.Fire once occurs for cable, and fire spreading speed is fast, the intensity of a fire is violent, while can also discharge big
The toxic gases such as flue gas, hydrogen chloride, carbon monoxide and the oxynitrides of amount, substantial amounts of cable and equipment can be not only burnt, very
To the injures and deaths that can also cause personnel.
Cable fire Gas Parameters evaluation and test platform is mainly used in the research of cable fire smoke property and Detection Techniques.But
It is that existing cable fire smoke parameter evaluation and test platform can only simulate single reason of fire, is tied for being studied under different scenes on fire
Contiguity between is not strong, it is impossible to considers influence of the different reasons of fire to probe response criterion；In addition, existing platform
Cable quality change can not be measured, it is impossible to which reorganizing research, and its optics smoke density are carried out to flue gas light-proofness and smoke components
Measurement apparatus uses single light source, and flue gas has different effect to different light sources, as scattering process of the white cigarette to light is compared
By force, and black smoke is stronger to the absorption of light；Its smoke gas analysis equipment can not detect the change in concentration of hydrogen chloride gas, and chlorine
Change hydrogen as a kind of characteristic gas in cable fire flue gas, have in terms of smoke property and Detection Techniques research important
Meaning.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of more scene cable fire Gas Parameters evaluation and test platforms and evaluation and test
Method, when solving the evaluation and test of existing cable Gas Parameters, overload, excessively stream and external heat source radiate three kinds of main scenes on fire can not be
Identical platform carries out simulation and influence of the different flue gases to light source measurement accuracy, and can not evaluate and test characteristic gas hydrogen chloride
Technical problem.
The technical solution of the present invention is to provide a kind of more scene cable fire Gas Parameters with following structure and commented
Survey platform, including cable duct well simulating chamber, radiant heating device, refractory ceramics plate, assay balance, overload flow simulation dress
Put, temperature measuring equipment, gas analyzing apparatus, optics smoke density measurement apparatus, data collecting system, integrated console, become
Frequency blower fan and smoke collecting pipeline；
The overload flow analogue means connects including overload flow analogue means current lifting device with overload flow analogue means
Head, the temperature measuring equipment includes temperature measuring equipment analysis module and temperature measuring equipment is popped one's head in, gas analyzing apparatus bag
Gas analyzing apparatus analyzer is included, the optics smoke density measurement apparatus includes optics smoke density measurement apparatus analysis module
With optics smoke density measurement apparatus measurement end, optics smoke density measurement apparatus measurement end includes feux rouges direct light source, blue light
Direct light source and scattering light source, the integrated console include integrated console control module and integrated consing module；
The overload flow analogue means current lifting device, temperature measuring equipment analysis module, gas analyzing apparatus analyzer, light
Learn the instrument of smoke density measurement apparatus analysis module, data collecting system and integrated console control module mounted in evaluation and test platform
In cavity, the integrated consing module is on the top surface of evaluation and test platform, the radiant heating device, refractory ceramics
Plate, overload flow analogue means connector, assay balance and temperature measuring equipment probe are in cable duct well simulating chamber, resistance to height
Warm ceramic wafer at the top of assay balance, mounted in high temperature resistant make pottery by overload flow analogue means connector and temperature measuring equipment probe
On porcelain plate top surface, radiant heating device is above refractory ceramics plate, the smoke collecting pipeline and cable duct well simulating chamber
Communicate, three laterally offered on smoke collecting pipe side wall to penetrating aperture, the feux rouges direct light source, blue light direct light source and
Scattering light source is separately mounted to three to penetrating in aperture, and the frequency conversion fan is described at the outlet flue of smoke collecting pipeline
Gas analyzing apparatus analyzer passes through flexible pipe and smoke collecting pipeline communication；
The assay balance, temperature measuring equipment, gas analyzing apparatus and optics smoke density measurement apparatus and data are adopted
Collecting system electrically connects, and the integrated consing module is used to control the power supply start and stop of evaluation and test platform, overload flow simulation dress
Current value, the thermal radiation flux value of radiant heating device and the wind speed of frequency conversion fan put.
A kind of more scene cable fire Gas Parameters evaluation and test platforms of the present invention, wherein, the radiant heating device
There are two, and tilt the top for being symmetricly set on refractory ceramics plate.
A kind of more scene cable fire Gas Parameters evaluation and test platforms of the present invention, wherein, the cable duct well simulation
Interior is provided with wind-supplying mouth, and the wind-supplying mouth is located remotely from the corner of refractory ceramics plate.
A kind of more scene cable fire Gas Parameters evaluation and test platforms of the present invention, wherein, the overload flow simulation
Device connector is spiral compression joint type structure, is distributed in the left and right sides of refractory ceramics plate.
A kind of more scene cable fire Gas Parameters evaluation and test platforms of the present invention, wherein, the temperature measuring equipment
The quantity of probe is two, and is thermocouple.
In addition, the present invention also provides a kind of evaluating method of more scene cable fire Gas Parameters evaluation and test platforms, including such as
Lower step：
S1, by cable under test be arranged on refractory ceramics plate on；
S2, the power supply for opening evaluation and test platform, two thermocouples are separately mounted to the surface and inside of cable under test, debugging
Assay balance, optics smoke density measurement apparatus and gas analyzing apparatus, select the wind speed of frequency conversion fan；
S3, selection overload, excessively stream and/or external heat source radiate scene on fire, start corresponding simulation test；
S4, observe and record cable under test change and flue gas generation situation of change in test process；
Can S5, judgement reach end scene set in advance, if can not, stop testing, repeat step S1~S5, until
Reach end scene set in advance, if can, stop test when reaching set scene；
S6, from data collecting system obtain original evaluation and test data；
S7, the power supply for disconnecting evaluation and test platform, arrange evaluation and test platform.
After above structure, compared with prior art, a kind of more scene cable fire Gas Parameters evaluation and tests of the present invention are flat
Platform and evaluating method have advantages below：
1st, the setting of overload flow analogue means and radiant heating device so that the present invention can be in identical platform to mistake
Load, excessively stream and external heat source radiate three kinds of main scenes on fire and simulated, and realize cable overload, excessively stream and by external heat source
Radiate the integration of three kinds of main reasons of fire；
2nd, assay balance is added, measurable cable quality loses situation of change；
3rd, temperature measuring equipment can measure the internal and external temperature of cable sample simultaneously；
4th, oxygen, carbon monoxide, carbon dioxide, oxynitrides, hydrogen chloride and alkane in cable fire flue gas are realized
Measured while six kinds of gas concentration changes；
5th, response sensitivity of the existing photoelectric probe to light source is considered, the present invention is measured small particle smoke particle using blue light
Accurately, the characteristics of big particle diameter smoke particle measurement of feux rouges centering is accurate, is measured, expansion can survey particle diameter model using feux rouges blue light two waveband
Enclose, exclude too small or excessive particle diameter smoke particle detection blind spot, improve accuracy of measurement；
6th, using two kinds of metering systems of direct projection and scattering, it can more early detect flue gas using scatterometry mode and direct projection is surveyed
The characteristics of amount mode is good to black smoke Effect on Detecting, it can more early detect smoke particle and ensure the measurement effect to black smoke.
In summary, the present invention is simple to operate, and it is single to solve existing research platform research scene, measurement object, method mistake
Few deficiency, reach the compound research to the loss of cable fire cable quality, temperature change, smoke components and flue gas light-proofness,
Studied available for cable fire smoke property and complex probe alarm technique.
Radiant heating device is two, and tilts and be symmetricly set on the top of refractory ceramics plate, can make radiant heating and
It is more preferable to simulate effect.
The setting of wind-supplying mouth make it that the simulation effect of the present invention is more true.
Overload flow analogue means connector is set to spiral compression joint type structure, and is distributed in the left and right of refractory ceramics plate
Both sides, in addition to connector original function, sample geometrical clamp is alternatively arranged as to use, it is convenient to be provided for test.
Brief description of the drawings
Fig. 1 is a kind of structural representation of more scene cable fire Gas Parameters evaluation and test platforms of the present invention；
Fig. 2 is the vertical view mplifying structure schematic diagram of refractory ceramics plate face plate in Fig. 1；
Fig. 3 is the section structure for amplifying of direct light source in a kind of more scene cable fire Gas Parameters evaluation and test platforms of the present invention
Schematic diagram；
Fig. 4 is the section structure for amplifying that light source is scattered in a kind of more scene cable fire Gas Parameters evaluation and test platforms of the present invention
Schematic diagram；
Fig. 5 is the flow chart when present invention is used for the evaluation and test experiment of cable fire flue gas.
Embodiment
More scene cable fire Gas Parameters a kind of to the present invention evaluate and test platform with reference to the accompanying drawings and detailed description
And evaluating method is described in further detail：
As depicted in figs. 1 and 2, in this embodiment, a kind of more scene cable fire Gas Parameters of the present invention are commented
Surveying platform includes cable duct well simulating chamber 1, radiant heating device 4, refractory ceramics plate 5, assay balance 6, overload flow simulation
It is device 3, temperature measuring equipment 7, gas analyzing apparatus 10, optics smoke density measurement apparatus 11, data collecting system 14, integrated
Console 15, frequency conversion fan 12 and smoke collecting pipeline 9.
Overload flow analogue means 3 includes overload flow analogue means current lifting device 3a and overload flow analogue means connector
3b；Temperature measuring equipment 7 includes temperature measuring equipment analysis module 7a and two temperature measuring equipment probe 7b；Gas analysis fills
Putting 10 includes gas analyzing apparatus analyzer 10a；Optics smoke density measurement apparatus 11 includes optics smoke density measurement apparatus
Analysis module 11a and optics smoke density measurement apparatus measurement end 11b, wherein, optics smoke density measurement apparatus measurement end 11b
Including feux rouges direct light source, blue light direct light source and scattering light source；Integrated console 15 includes integrated console control module 15a
With integrated consing module 15b.
Overload flow analogue means current lifting device 3a, temperature measuring equipment analysis module 7a, gas analyzing apparatus analyzer
10a, optics smoke density measurement apparatus analysis module 11a, data collecting system 14 and integrated console control module 15a are mounted in
In the instrument cavity for evaluating and testing platform, consing module 15b is integrated on the top surface of evaluation and test platform.Radiant heating device 4,
Refractory ceramics plate 5, overload flow analogue means connector 3b, assay balance 6 and temperature measuring equipment probe 7b are located at cable
In ditch well simulating chamber 1.Refractory ceramics plate 5 is by drive link mounted in the top of assay balance 6, overload flow analogue means connector
3b has two, and is spiral compression joint type structure, sample geometrical clamp can be used as to use, and it is convenient to be provided for test, the two mistakes
Excessively stream analogue means connector 3b is carried to be separately mounted at left and right sides of the top surface of refractory ceramics plate 5.Two temperature measuring equipments
The 7b that pops one's head in is thermocouple, and the two the installation of TC are distributed in right-hand member and overloaded on the top surface of refractory ceramics plate 5
Flow field simulation device connector 3b front and rear sides (referring to Fig. 2).Radiant heating device 4 be two, and tilt be symmetrically mounted on it is resistance to
The top of refractory ceramics plate 5, tilt angle alpha are 50 degree.Wind-supplying mouth 2 is provided with cable duct well simulating chamber 1, wind-supplying mouth 2 is positioned at remote
From the corner (upper left position of cable duct well simulating chamber 1 in Fig. 1) of refractory ceramics plate 5.
The smoke inlet 8 of smoke collecting pipeline 9 communicates with cable duct well simulating chamber 1, is laterally opened in the side wall of smoke collecting pipeline 9
Provided with three to penetrating aperture, feux rouges direct light source, blue light direct light source and scattering light source are separately mounted to three to penetrating in aperture.
With reference to Fig. 3, light power meter 11b2 is housed in the side wall of smoke collecting pipeline 9, light power meter 11b2 is located at direct light source 11b1's
Right opposite；With reference to Fig. 4, scatter and be provided with polarizer 11b4 and Electro-optical Modulation between light source 11b3 and the side wall of smoke collecting pipeline 9
Device 11b5, photomultiplier 11b7 is housed, photomultiplier 11b7 is positioned at scattering light source 11b3 in the side wall of smoke collecting pipeline 9
Right opposite, polarizer 11b4 and quarter wave plate 11b6 is provided between photomultiplier 11b7 and the side wall of smoke collecting pipeline 9.
Frequency conversion fan 12, for extracting flue gas, is opened at the outlet flue 13 of smoke collecting pipeline 9 in the side wall of smoke collecting pipeline 9
Provided with hose connection 10b, flexible pipe is housed on hose connection 10b, gas analyzing apparatus analyzer 10a is adopted by flexible pipe and flue gas
The collection connection of pipeline 9 communicates.
Light power meter 11b2 and photomultiplier 11b7 electrically connects with optics smoke density measurement apparatus analysis module 11a.
Assay balance 6, temperature measuring equipment 7, gas analyzing apparatus 10 and optics smoke density measurement apparatus 11 and data collecting system
14 electrical connections, the collection analysis balance 6 of data collecting system 14, temperature measuring equipment 7, gas analyzing apparatus 10 and optics flue gas are close
Degree measurement apparatus 11 surveys data.Integrated consing module 15b is used for power supply start and stop, the overload flow for controlling evaluation and test platform
The wind speed of the current value of analogue means 3, the thermal radiation flux value of radiant heating device 4 and frequency conversion fan 12.
The resolution ratio of assay balance 6 is 0.001 gram.The electric current output of the wind speed, overload flow analogue means 3 of frequency conversion fan 12
Value, the thermal radiation flux value continuously adjustabe of radiant heating device 4, current value, thermal radiation flux value can be stablized to be exported without fluctuation.
Gas analyzing apparatus 10 can analyze oxygen, carbon monoxide, carbon dioxide, oxynitrides, hydrogen chloride and alkane six
Kind of gas concentration situation of change, feux rouges direct light source, blue light direct light source and scattering in optics smoke density measurement apparatus 11
Three kinds of light sources of light source can be used to measure simultaneously.
With reference to Fig. 5, a kind of evaluating method of more scene cable fire Gas Parameters evaluation and test platforms of the present invention, including following step
Suddenly：
S1, by cable under test be arranged on refractory ceramics plate 5 on；
S2, the power supply for opening evaluation and test platform, two thermocouples are separately mounted to the surface and inside of cable under test, debugging
Assay balance 6, optics smoke density measurement apparatus 11 and gas analyzing apparatus 10, select the wind speed of frequency conversion fan 12；
S3, selection overload, excessively stream and/or external heat source radiate scene on fire, start corresponding simulation test；
S4, observe and record cable under test change and flue gas generation situation of change in test process；
Can S5, judgement reach end scene set in advance, if can not, stop testing, repeat step S1~S5, until
Reach end scene set in advance, if can, stop test when reaching set scene；
S6, from data collecting system 14 obtain original evaluation and test data；
S7, the power supply for disconnecting evaluation and test platform, arrange evaluation and test platform.
A kind of more scene cable fire Gas Parameters evaluation and test platforms of the present invention and evaluating method have advantages below：
1st, the setting of overload flow analogue means and radiant heating device so that the present invention can be in identical platform to mistake
Load, excessively stream and external heat source radiate three kinds of main scenes on fire and simulated, and realize cable overload, excessively stream and by external heat source
Radiate the integration of three kinds of main reasons of fire；
2nd, assay balance is added, measurable cable quality loses situation of change；
3rd, temperature measuring equipment can measure the internal and external temperature of cable sample simultaneously；
4th, oxygen, carbon monoxide, carbon dioxide, oxynitrides, hydrogen chloride and alkane in cable fire flue gas are realized
Measured while six kinds of gas concentration changes；
5th, response sensitivity of the existing photoelectric probe to light source is considered, the present invention is measured small particle smoke particle using blue light
Accurately, the characteristics of big particle diameter smoke particle measurement of feux rouges centering is accurate, is measured, expansion can survey particle diameter model using feux rouges blue light two waveband
Enclose, exclude too small or excessive particle diameter smoke particle detection blind spot, improve accuracy of measurement；
6th, using two kinds of metering systems of direct projection and scattering, it can more early detect flue gas using scatterometry mode and direct projection is surveyed
The characteristics of amount mode is good to black smoke Effect on Detecting, it can more early detect smoke particle and ensure the measurement effect to black smoke.
In summary, the present invention is simple to operate, and it is single to solve existing research platform research scene, measurement object, method mistake
Few deficiency, reach the compound research to the loss of cable fire cable quality, temperature change, smoke components and flue gas light-proofness,
Studied available for cable fire smoke property and complex probe alarm technique.In addition, the overload flow size of current of the present invention, spoke
Penetrate heating thermal radiation flux and blower fan extracts wind speed is adjustable, and achievable overload, excessively stream are on fire and external heat source baking is on fire etc.
More scene cable fires are simulated, in measurable display record cable quality, cable core and external temperature, light source power and flue gas
Oxygen, carbon monoxide, carbon dioxide, oxynitrides, hydrogen chloride and alkane concentration changes with time situation, available for how on fire
The scientific researches such as reason cable fire smoke property, flue gas complex probe technology, for cable fire prevention, early detection and special
Fire detector development provides Gas Parameters evaluation and test platform.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, all should fall within the scope of protection of the present invention.
Claims (6)
- A kind of 1. more scene cable fire Gas Parameters evaluation and test platforms, it is characterised in that：Including cable duct well simulating chamber (1), spoke Penetrate heater (4), refractory ceramics plate (5), assay balance (6), overload flow analogue means (3), temperature measuring equipment (7), gas analyzing apparatus (10), optics smoke density measurement apparatus (11), data collecting system (14), integrated console (15), frequency conversion fan (12) and smoke collecting pipeline (9)；The overload flow analogue means (3) includes overload flow analogue means current lifting device (3a) and overload flow analogue means connects Joint (3b), the temperature measuring equipment (7) includes temperature measuring equipment analysis module (7a) and two temperature measuring equipments are visited Head (7b), the gas analyzing apparatus (10) include gas analyzing apparatus analyzer (10a), the optics smoke density measurement dress Putting (11) includes optics smoke density measurement apparatus analysis module (11a) and optics smoke density measurement apparatus measurement end (11b), Optics smoke density measurement apparatus measurement end (11b) includes feux rouges direct light source, blue light direct light source and scattering light source, the collection Include integrated console control module (15a) and integrated consing module (15b) into console (15)；The overload flow analogue means current lifting device (3a), temperature measuring equipment analysis module (7a), gas analyzing apparatus analysis Instrument (10a), optics smoke density measurement apparatus analysis module (11a), data collecting system (14) and integrated console control mould Block (15a) is in the instrument cavity of evaluation and test platform, top surface of the integrated consing module (15b) mounted in evaluation and test platform On, the radiant heating device (4), refractory ceramics plate (5), overload flow analogue means connector (3b), assay balance (6) It is located at temperature measuring equipment probe (7b) in cable duct well simulating chamber (1), refractory ceramics plate (5) is mounted in assay balance (6) Top, overload flow analogue means connector (3b) and temperature measuring equipment probe (7b) are mounted in refractory ceramics plate (5) top surface On, radiant heating device (4) is above refractory ceramics plate (5), the smoke collecting pipeline (9) and cable duct well simulating chamber (1) communicate, three are laterally offered in smoke collecting pipeline (9) side wall to penetrating aperture, the feux rouges direct light source, blue light direct projection Light source and scattering light source are separately mounted to three to penetrating in aperture, and the frequency conversion fan (12) is mounted in smoke collecting pipeline (9) Outlet flue (13) place, the gas analyzing apparatus analyzer (10a) are connected by flexible pipe with smoke collecting pipeline (9)；The assay balance (6), temperature measuring equipment (7), gas analyzing apparatus (10) and optics smoke density measurement apparatus (11) electrically connected with data collecting system (14), the integrated consing module (15b) is used for the electricity for controlling evaluation and test platform Source start and stop, the current value of overload flow analogue means (3), the thermal radiation flux value of radiant heating device (4) and frequency conversion fan (12) wind speed.
- A kind of 2. more scene cable fire Gas Parameters evaluation and test platforms according to claim 1, it is characterised in that：The spoke Penetrating heater (4) has two, and tilts the top for being symmetricly set on refractory ceramics plate (5).
- A kind of 3. more scene cable fire Gas Parameters evaluation and test platforms according to claim 1 or 2, it is characterised in that：Institute State in cable duct well simulating chamber (1) and be provided with wind-supplying mouth (2), the wind-supplying mouth (2) is located remotely from the corner of refractory ceramics plate (5) Place.
- A kind of 4. more scene cable fire Gas Parameters evaluation and test platforms according to claim 3, it is characterised in that：The mistake It is spiral compression joint type structure to carry excessively stream analogue means connector (3b), is distributed in the left and right sides of refractory ceramics plate (5).
- A kind of 5. more scene cable fire Gas Parameters evaluation and test platforms according to claim 4, it is characterised in that：The temperature It is thermocouple to spend measurement apparatus probe (7b).
- 6. a kind of evaluating method of more scene cable fire Gas Parameters evaluation and test platforms as claimed in claim 5, its feature exist In comprising the following steps：S1, by cable under test be arranged on refractory ceramics plate (5) on；S2, the power supply for opening evaluation and test platform, two thermocouples are separately mounted to the surface and inside of cable under test, Commissioning Analysis Balance (6), optics smoke density measurement apparatus (11) and gas analyzing apparatus (10), select the wind speed of frequency conversion fan (12)；S3, selection overload, excessively stream and/or external heat source radiate scene on fire, start corresponding simulation test；S4, observe and record cable under test change and flue gas generation situation of change in test process；Can S5, judgement reach end scene set in advance, if can not, stop test, repeat step S1~S5, until reaching End scene set in advance, if can, stop test when reaching set scene；S6, from data collecting system (14) obtain original evaluation and test data；S7, the power supply for disconnecting evaluation and test platform, arrange evaluation and test platform.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108007958A (en) * | 2018-01-24 | 2018-05-08 | 无锡圣敏传感科技股份有限公司 | Generating means and detecting system |
| CN108072679A (en) * | 2018-01-19 | 2018-05-25 | 国网安徽省电力有限公司电力科学研究院 | A kind of electric shaft fire behavior test platform |
| 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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| 谢启源等: "感烟火灾探测器的灵敏度评测", 《火灾科学》 * |
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| CN108072679A (en) * | 2018-01-19 | 2018-05-25 | 国网安徽省电力有限公司电力科学研究院 | A kind of electric shaft fire behavior test platform |
| CN108007958A (en) * | 2018-01-24 | 2018-05-08 | 无锡圣敏传感科技股份有限公司 | Generating means and detecting system |
| 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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