CN107545810A - A kind of experimental provision for studying different liquid level depth pond fire combustion characteristics - Google Patents
A kind of experimental provision for studying different liquid level depth pond fire combustion characteristics Download PDFInfo
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- CN107545810A CN107545810A CN201710747421.4A CN201710747421A CN107545810A CN 107545810 A CN107545810 A CN 107545810A CN 201710747421 A CN201710747421 A CN 201710747421A CN 107545810 A CN107545810 A CN 107545810A
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- cup
- quartz glass
- liquid level
- outer cup
- level depth
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Abstract
The invention discloses a kind of experimental provision for studying different liquid level depth pond fire combustion characteristics, including burner and data collecting system, burner is generally cylindrical, top is made up of the quartz glass tube of opening, bottom is made up of the inner cup and the outer cup with height adjuster, can be according to the height and position of the different liquid level depth adjustment inner cup and the outer cup of required research, cartridge is connected under interior cup, and outer cup is connected with air hose.The present invention has advantages below compared with prior art：The air mass flow that can be passed through by adjusting changes air-fuel ratio, adjusts height adjuster to adjust liquid level depth, to observe gas cell fire aptitude to burn under the conditions of different liquid level depth and air-fuel ratio；Thermocouple and radiometer can be by experiments, and the amount of radiation and temperature field information real-time delivery of fuel combustion are used for analysis cell fire aptitude to burn to computer.
Description
Technical field
Field of the present invention is related to a kind of burner, more particularly to a kind of different liquid level depth pond fire combustion characteristics of research
Experimental provision.
Background technology
In recent years, the fire incident occurred in process industrials such as China's petrochemical industry, chemical industry is in rising trend.If fire occurs one
In a little large-scale harmful influence storage facilities, such as large-scale oil storage tank, it may occur that very serious tank body is deformed, tilts, leaked very
To explosion accident, substantial amounts of casualties, great economic loss or serious environmental pollution are often resulted in, its consequence will can't bear
Contemplate.For such situation, it is necessary to carry out the research of liquid level depth oil storage tank fire combustion characteristics, obtain on complex external side
Under the conditions of boundary, oil storage tank fire dynamics Evolution under different liquid level depth conditions；Hold to improve pressure after fire and burning
The Integrity Assessment method and standard criterion of device provide corresponding data and experiment is supported.From the point of view of progress both domestic and external,
No matter the change of external environment condition and the change of food tray size, forefathers have obtained important basic data and research conclusion, Ta Mensuo
The research of development or the combustion characteristics expansion for open liquid cell fire, or for the radiation intensity suffered by adjacent storage
Carry out with profiling temperatures, and the correlative study at present on pond fire combustion characteristics under different liquid level depth conditions is also less,
Corresponding many problems are not also apparent, if liquid cell fire is in the case of different liquid levels, to the burn rate of liquid cell fire
Influence.The corresponding relation that its flame characteristics changes in the presence of intercoupling with liquid level, internal temperature and radiation intensity
Distribution.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of different liquid level depth pond fire burnings of research
The experimental provision of characteristic.
The present invention is achieved by the following technical solutions：A kind of experiment for studying different liquid level depth pond fire combustion characteristics
Device, including combustion system and data collecting system two parts composition, it is characterised in that：The combustion system main body is a setting
In the cylindrical quartz glass pipe on flat base, inner cup and the outer cup are provided with the quartz glass tube, outside the outer cup
Footpath is identical with quartz glass bore, and the interior cup is arranged in outer cup, and the external diameter of interior cup is less than the internal diameter of outer cup, the interior cup
Coaxial position is in quartz glass tube with outer cup, sealing strip is provided between outer cup and quartz glass tube and is sealed, it is interior
Bottom of a cup portion is provided with cartridge, and outer cup bottom is provided with air hose, and fuel valve and fuel flow meter are provided with cartridge, empty
Air door and mass air flow sensor are provided with tracheae, the inner cup and the outer cup bottom is provided with height adjuster, the height
Adjuster is used to adjust position height of the inner cup and the outer cup in the quartz glass tube；The data collecting system includes thermoelectricity
Even, radiometer and computer, described thermocouple and radiometer are connected with the computer, and the thermocouple is arranged at quartz
Glass tube side, by being stretched on the outside of quartz glass tube through its side wall in the tube chamber of quartz glass tube, the radiometer is positioned at interior
Bottom of a cup portion, radiometer outside are provided with quartz glass cover, and the quartz glass cover is close to the setting of radiometer outer surface.
As further improvement of these options, the radiometer is interior cup radius value apart from the distance of interior cup madial wall
Half.
As further improvement of these options, the height adjuster is made up of threaded screw rod and support flat board, institute
Threaded screw rod is stated by being stretched out upwards below flat base, the top of threaded screw rod is rotatably connected with support flat board, screw thread silk
Coordinated between bar and flat base by screw thread, the height on threaded screw rod top can be adjusted by rotating threaded screw rod, so as to
Inner cup and the outer cup above adjustment support flat board are in quartz glass tube inner height.
As further improvement of these options, rectification thing is filled with the interior cup.
As further improvement of these options, rectification thing is filled with the outer cup.
As further improvement of these options, described interior bottom of a cup portion sets metal threaded joint to connect with cartridge
Connect, outer cup bottom sets metal threaded joint to be connected with air hose.
As further improvement of these options, described burner top quartz glass tube side is inserted with multiple thermoelectricity
Even, the end of the thermocouple is arranged at the central axis of quartz glass tube, the height phase between adjacent two thermocouples
Poor 5-10cm.
The present invention has advantages below compared with prior art：
(1) different liquid level advanced gas pond fire burnings can be observed by the height research for the inner cup and the outer cup for adjusting burner
Characteristic.
(2) radiometer in interior cup can be by experiment, and the amount of radiation real-time delivery of fuel combustion is used to analyze to computer
Pond fire aptitude to burn.
(3) air-fuel ratio can be changed, by adjusting the air mass flow being passed through to study the combustion characteristics of pond fire.
(4) liquid level depth can be adjusted by adjusting height adjuster, to study pond fire combustion characteristic.
(5) temperature of flame different height position when burning, real-time delivery can be used for analysis cell by thermocouple to computer
Fiery aptitude to burn.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
A kind of experimental provision for studying different liquid level depth pond fire combustion characteristics, including combustion system and data collecting system
Two parts form, it is characterised in that：Combustion system main body is a cylindrical quartz glass pipe 11 being arranged on flat base 3,
Interior cup 12 and outer cup 13 are provided with quartz glass tube 11, the external diameter of outer cup 13 is identical with the internal diameter of quartz glass tube 11, interior cup 12
Be arranged in outer cup 13, the external diameter of interior cup 12 is less than the internal diameter of outer cup 13, interior cup 12 and outer cup 13 with quartz glass tube 11
Sealing strip is provided between coaxial position, outer cup 13 and quartz glass tube 11 to be sealed, the interior bottom of cup 12 is provided with fuel
Pipe 16, the bottom of outer cup 13 are provided with air hose 15, fuel valve 162 and fuel flow meter 161, air are provided with cartridge 16
Air door 152 and mass air flow sensor 151 are provided with pipe 15, interior cup 12 and the bottom of outer cup 13 are provided with height adjuster 14,
Height adjuster 14 is used to adjust the position height of interior cup 12 and outer cup 13 in quartz glass tube 11；Data collecting system includes
Thermocouple 21, radiometer 23 and computer 22, thermocouple 21 and radiometer 23 be connected with computer 22, thermocouple 21 is set
In the side of quartz glass tube 11, stretched into the tube chamber of quartz glass tube 11, radiated through its side wall by the outside of quartz glass tube 11
Meter 23 is located at the interior bottom of cup 12, and the outside of radiometer 23 is provided with quartz glass cover, and quartz glass cover is close to the outer surface of radiometer 23
Set.Main body of the quartz glass tube 11 as buner system, can facilitate the observation for flame, with reference to the form energy of flame
It is enough to help to analyze combustion case；The air mass flow for simultaneously participating in burning is provided by outer cup 13 completely, and is accurately controlled, surrounding ring
Border air can not participate in burning by the barrier of quartz glass tube 11, and study the behavior dynamics characteristic of flame based on this.It is interior
Cup 12 and outer cup 13 are each responsible for supplying fuel and air, convenient that air-fuel ratio is adjusted, for simulating various tank body fire
Situation.Interior cup 12 and outer cup 13 can be adjusted apart from 11 open-topped distance of quartz glass tube by arrangement for adjusting height, from
And simulate the combustion case of pond fire in the case of different liquid levels.Sealing strip can prevent extraneous air from entering quartz by bottom
Glass tube 11, the flame combustion situation in real simulation reality tank body.Radiation intensity for test flame to fuel surface, interior cup
The radiometer 23 that 12 bottoms are set can measure from the bottom of flame to the radiation event of burning, because it is located at flame bottom
The metastable position in portion, the data of measurement are relatively stable accurate, carried out beneficial to the evaluation work in later stage.
Radiometer 23 is apart from the half that the distance of the interior madial wall of cup 12 is the interior radius value of cup 12.
Height adjuster 14 is made up of threaded screw rod 142 and support flat board 141, and threaded screw rod 142 is by the lower section of flat base 3
Stretch out upwards, the top of threaded screw rod 142 is rotatably connected with support flat board 141, threaded screw rod 142 and flat base 3 it
Between coordinated by screw thread, can adjust the height on the top of threaded screw rod 142 by rotating threaded screw rod 142, so as to adjust support
The interior cup 12 and outer cup 13 of the top of flat board 141 are in the inner height of quartz glass tube 11.By such setting, can easily adjust
The distance of interior cup 12 and outer cup 13 at the top of quartz glass tube 11, so as to simulate the burning feelings of the pond of different liquid levels fire
Condition, can quickly obtain substantial amounts of analogue data, and combustion case is analyzed in help.
Filling rectification thing may be selected in interior cup 12.To make gaseous fuel work as fuel by the interior top uniform throughout outflow of cup 12
For gaseous state when, interior cup 12 need to fill rectification thing, with analogue simulation reality fire condition；When fuel is liquid condition, just
Rectification thing need not be inserted.
Rectification thing is filled with outer cup 13.To simulate real Fire Conditions, it is necessary to make air equal everywhere by the top of outer cup 13
Uniform flow goes out, and the filling rectification thing in outer cup 13, air can be kept to be mixed by the fuel flowing in the inside cup 12 of surrounding, such
Situation is passed through air by pipeline and more conforms to reality compared to single.
The interior bottom of cup 12 sets metal threaded joint to be connected with cartridge 16, the bottom of outer cup 13 set metal threaded joint and
Air hose 15 connects.The convenient workload loaded and unloaded, assembling can be reduced of metal threaded joint.
The side of burner top quartz glass tube 11 is inserted with multiple thermocouples 21, and the end of thermocouple 21 is arranged in quartzy glass
At the central axis of glass pipe 11, the height difference 5-10cm between adjacent two thermocouples 21.Between specific thermocouple 21
Depending on the size of spacing and the quantity of setting foundation liquid level depth.
Embodiment 2
The operating method of a kind of experimental provision learning gas pond fire combustion characteristics using in embodiment 1, first according to institute
The liquid level depth of research adjusts the height of interior cup 12 and outer cup 13 by arrangement for adjusting height 14, in inside cup 12 and outer cup 13
Rectification thing is loaded, regulation fuel tube valve 171, required fuel is determined by fuel flowmeter for pipe 172, is passed through by cartridge 15
Into interior cup 12, rectification is carried out by the rectification thing in interior cup, regulation air tube valve 161 is true by air flow in tube gauge 162
Fixed required air, is passed into outer cup 13 by air hose 16, is carried out rectification by the rectification thing in outer cup, is opened data acquisition
Computer 22 in system, thermocouple 21 and radiometer 23 are connected, lights the gaseous fuel in interior cup 12, led to after steady air current
The data received, learning gas pond fire combustion characteristics are crossed on computer 22.
Embodiment 3
A kind of experimental provision using in embodiment 1 studies the operating method of liquid cell fire combustion characteristics, first according to institute
The liquid level depth of research adjusts the height of interior cup 12 and outer cup 13 by arrangement for adjusting height 14, and rectification is loaded into outer cup
Thing, fuel tube valve 151 is opened, liquid fuel is passed into interior cup 12 by cartridge 15, when fuel is full of in interior cup 12, is beaten
Open air tube valve 161 and adjust air mass flow, determined to be passed through the flow of air according to air flow in tube gauge 162, air passes through outer
Rectification material 15 in cup 13 carries out rectification, opens the computer 22 in data collecting system, connects thermocouple 21 and radiometer
23, the liquid fuel in interior cup 12 is lighted, by the data received on computer 22, studies pond fire combustion characteristics.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made within principle etc., should be included in the scope of the protection.
Claims (7)
1. a kind of experimental provision for studying different liquid level depth pond fire combustion characteristics, including combustion system and data collecting system two
Part forms, it is characterised in that：The combustion system main body is a cylindrical quartz glass pipe being arranged on flat base,
Inner cup and the outer cup are provided with the quartz glass tube, the outer cup external diameter is identical with quartz glass bore, and the interior cup is set
It is placed in outer cup, the external diameter of interior cup is less than the internal diameter of outer cup, and the interior cup is in coaxial position with outer cup with quartz glass tube,
It is provided with sealing strip between outer cup and quartz glass tube to be sealed, interior bottom of a cup portion is provided with cartridge, and outer cup bottom is provided with
Air hose, fuel valve and fuel flow meter are provided with cartridge, air door and mass air flow sensor are provided with air hose,
The inner cup and the outer cup bottom is provided with height adjuster, and the height adjuster is used to adjust inner cup and the outer cup in the quartz
Position height in glass tube；The data collecting system includes thermocouple, radiometer and computer, described thermocouple and spoke
Penetrate meter to be connected with the computer, the thermocouple is arranged at quartz glass tube side, by running through it on the outside of quartz glass tube
Side wall is stretched into the tube chamber of quartz glass tube, and the radiometer is located at interior bottom of a cup portion, and quartz glass cover is provided with the outside of radiometer,
The quartz glass cover is close to the setting of radiometer outer surface.
A kind of 2. experimental provision for studying different liquid level depth pond fire combustion characteristics as claimed in claim 1, it is characterised in that：
The radiometer is apart from the half that the distance of interior cup madial wall is interior cup radius value.
A kind of 3. experimental provision for studying different liquid level depth pond fire combustion characteristics as claimed in claim 1, it is characterised in that：
The height adjuster is made up of threaded screw rod and support flat board, and the threaded screw rod by stretching out upwards below flat base, spiral shell
The top of line screw mandrel is rotatably connected with support flat board, is coordinated between threaded screw rod and flat base by screw thread, by turning
Dynamic threaded screw rod can adjust the height on threaded screw rod top, so as to adjust the inner cup and the outer cup above support flat board in quartzy glass
Glass pipe inner height.
A kind of 4. experimental provision for studying different liquid level depth pond fire combustion characteristics as claimed in claim 1, it is characterised in that：
Rectification thing is filled with the interior cup.
A kind of 5. experimental provision for studying different liquid level depth pond fire combustion characteristics as claimed in claim 1, it is characterised in that：
Rectification thing is filled with the outer cup.
A kind of 6. experimental provision for studying different liquid level depth pond fire combustion characteristics as claimed in claim 1, it is characterised in that：
Described interior bottom of a cup portion sets metal threaded joint to be connected with cartridge, and outer cup bottom sets metal threaded joint to connect with air hose
Connect.
A kind of 7. experimental provision for studying different liquid level depth pond fire combustion characteristics as claimed in claim 1, it is characterised in that：
Described burner top quartz glass tube side is inserted with multiple thermocouples, and the end of the thermocouple is arranged in quartz glass tube
Central axis at, height between adjacent two thermocouples difference 5-10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710747421.4A CN107545810B (en) | 2017-08-28 | 2017-08-28 | A kind of experimental provision for studying different liquid level depth pond fire combustion characteristics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710747421.4A CN107545810B (en) | 2017-08-28 | 2017-08-28 | A kind of experimental provision for studying different liquid level depth pond fire combustion characteristics |
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| Publication Number | Publication Date |
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| CN107545810A true CN107545810A (en) | 2018-01-05 |
| CN107545810B CN107545810B (en) | 2019-07-12 |
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| CN201710747421.4A Expired - Fee Related CN107545810B (en) | 2017-08-28 | 2017-08-28 | A kind of experimental provision for studying different liquid level depth pond fire combustion characteristics |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024432A (en) * | 2019-12-26 | 2020-04-17 | 华南理工大学 | Device capable of measuring influence of multi-pool fire of any size on target equipment |
| CN115290645A (en) * | 2022-08-01 | 2022-11-04 | 中国矿业大学(北京) | Device and method for simulating influence of side wall on fire burning behavior of storage tank oil pool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024432A (en) * | 2019-12-26 | 2020-04-17 | 华南理工大学 | Device capable of measuring influence of multi-pool fire of any size on target equipment |
| CN115290645A (en) * | 2022-08-01 | 2022-11-04 | 中国矿业大学(北京) | Device and method for simulating influence of side wall on fire burning behavior of storage tank oil pool |
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| CN107545810B (en) | 2019-07-12 |
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