CN205785746U - A kind of fire whirl analogue measurement system - Google Patents
A kind of fire whirl analogue measurement system Download PDFInfo
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- CN205785746U CN205785746U CN201620523553.XU CN201620523553U CN205785746U CN 205785746 U CN205785746 U CN 205785746U CN 201620523553 U CN201620523553 U CN 201620523553U CN 205785746 U CN205785746 U CN 205785746U
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- Prior art keywords
- fire whirl
- flue
- measurement system
- fire
- whirl
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- 238000005259 measurement Methods 0.000 title claims abstract description 22
- 239000003517 fume Substances 0.000 claims abstract description 21
- 239000000446 fuel Substances 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 14
- 239000003546 flue gas Substances 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 6
- 230000005619 thermoelectricity Effects 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 14
- 239000000463 material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 239000005336 safety glass Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000009838 combustion analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
A kind of fire whirl analogue measurement system, including the fire whirl generating means containing multiple removable doors and slide rail, and HRR determinator, HRR determinator includes exhaust fume collecting hood, flue, gas analyser, thermocouple and orifice flowmeter.This measurement system can be to simulate different openings width, different fuel form fire whirl phenomenon, it is also possible to can measure HRR and the Changing Pattern of efficiency of combustion in fire whirl generation evolution exactly by various measuring cells.
Description
Technical field
This utility model belongs to technical field of fire hazard safety, particularly to a kind of fire whirl analogue measurement system.
Background technology
Fire whirl is a kind of rotation strong convection fire phenomena being common in forest and Urban Fires, has burn rate
High, burning acutely, flame temperature high.At present, domestic and international research worker is by slit and rotation two kinds of fire whirls of curtain formula
Analog carries out experimentation to fire whirl, and research contents is concentrated mainly on the inducement mechanism of fire whirl, burn rate, flame
The aspects such as height and thermo parameters method, all achieve certain achievement theoretical in terms of experiment.But it is corresponding owing to lacking
Experimental provision, HRR and the research almost blank of efficiency of combustion to fire whirl, lack varying environment condition
Under (pressure, oxygen concentration etc.), quantitatively dividing of different operating mode (air inflow, A/F and food tray size etc.) fire whirl efficiencies of combustion
Analysis, the comprehensive and deep understanding therefore the efficiency of combustion characteristic aspect of fire whirl lacked.
Utility model content
(1) to solve the technical problem that
In order to make up existing experimental provision deficiency in terms of HRR and efficiency of combustion measurement, this utility model carries
For a kind of fire whirl HRR determinator.
(2) technical scheme
This utility model provides a kind of fire whirl analogue measurement system, including:
Fire whirl generating means, including multiple removable doors and slide rail, also includes food tray or fuel jet mouth, wherein,
Described removable door is configured around fire whirl generating means, and carries out folding by slide rail；
Described food tray or fuel jet mouth are arranged at inside fire whirl generating means；
HRR determinator, including exhaust fume collecting hood, flue, gas analyser, thermocouple and orifice flowmeter, its
In,
One end cover cap of described exhaust fume collecting hood is connected with flue at the top of fire whirl generating means, the other end；
Gas analyser, thermocouple and orifice flowmeter is arranged in described flue.
Preferably, described removable door is around fire whirl generating means spaced set, and the number of door is 4-12.
Preferably, described slide rail is arranged in the upper and lower of fire whirl generating means, described removable door along top and
The slide rail of bottom carries out folding.
Preferably, on the slide rail of bottom or its underpart is also equipped with scale.
Preferably, the one end open direction of described exhaust fume collecting hood is vertical with other end opening direction, and cover cap is sent out at fire whirl
The one end open of generating apparatus is more than fire whirl generating means opening.
Preferably, described gas analyser is flue gas analyzer annular sampler, and ring is located in described flue.
Preferably, described HRR determinator also includes variable-speed shaft flow fan, and it is arranged in described flue and leans on
On the position of nearly exhaust fume collecting hood.
Preferably, described thermocouple is armoured thermocouple.
Preferably, described orifice flowmeter is arranged along the axis of flue, and includes sampling aperture, offering of sampling aperture
Direction is contrary with airflow direction.
Preferably, described gas analyser, thermocouple and orifice flowmeter are according to being gradually distance from flue and collection flue adapter
Position arrange.
(3) beneficial effect
Pass through technique scheme, it can be seen that the beneficial effects of the utility model are:
(1) this system can be with simulation different openings width, different fuel form (oil sump burning or jet combustion) or burning things which may cause a fire disaster
Size fire whirl phenomenon；
(2) this system can also measure heat in fire whirl generation evolution exactly by various measuring cells and releases
Put the Changing Pattern of speed and efficiency of combustion.
(3) combined with HRR determinator by just fire whirl analog, it is possible to by regulation fire rotation
Each parameter of wind burning, measures the HRR of fuel under different intake and burning things which may cause a fire disaster size condition.
Accompanying drawing explanation
Fig. 1 is the fire whirl analogue measurement system side structural representation of this utility model embodiment.
Fig. 2 is the fire whirl analogue measurement system plan structure figure of utility model embodiment.
In figure, parts are respectively as follows:
1. may move door, 2. slide rail, 3. food tray or fuel jet mouth,
4. exhaust fume collecting hood, 5. flue, 6. gas analyser,
7. variable-speed shaft flow fan, 8. thermocouple, 9. orifice flowmeter.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with specific embodiment, and
Referring to the drawings, the utility model is described in further detail.In the description, same or analogous drawing reference numeral instruction phase
Same or similar parts.
Following referring to the drawings explanation to this utility model embodiment is intended to overall utility model structure of the present utility model
Think of explains, and is not construed as a kind of restriction of the present utility model.
See shown in each view of Fig. 1-2, according to general plotting of the present utility model, it is provided that a kind of fire whirl analogue measurement system
System, including: fire whirl generating means and the HRR determinator including multiple measuring unit, this device can not only be real
Test the fire whirl phenomenon of the different operating modes of simulation, and can measure exactly in fire whirl generation evolution HRR and
The Changing Pattern of efficiency of combustion.
Hereinafter fire whirl device and the HRR of the fire whirl analogue measurement system to the present embodiment are measured dress
Put and corresponding measuring unit is described in detail.
According to embodiment of the present utility model, fire whirl generating means includes multiple removable door 1 and slide rail 2, also includes
Food tray or fuel jet mouth 3.The effect of fire whirl device is to produce different openings width, different fuel form and different work
The fire whirl of condition, needs the common cooperation by above-mentioned parts.
Wherein, removable door 1 is configured around fire whirl generating means, and carries out folding by slide rail 2.Removable door
1 in any stop of slide rail 2, thus can create different openings, and respective external air-flow size changes the most accordingly.Described move
Dynamic door 1 can be around fire whirl generating means spaced set, and the number of door is 4-12, preferably 4, such as, arranges four
Door, then surround a four sides cylindrical space.Preferably, the material that material is flame resistant high temperature of removable door 1, the most not
Rust steel or safety glass, further preferred for tempered glass materials.Shape for removable door 1 occurs according to fire whirl
Depending on the exterior contour of device, it is with its outline, conveniently carries out folding.Preferably rectangle, fan-shaped or square,
Further preferred for rectangle, described size can be such as 40cm × 100cm.
Wherein, slide rail 2 is set to be easy to removable door 1 and carries out folding.Optionally, fill at fire whirl as shown in Figure 2
The upper and lower put all offers slide rail 2, and the quantity of slide rail 2 can be 2 times of removable door, or fills at fire whirl
The overall slide rail around whole device is offered in the upper and lower put.Removable door 1 embeds in slide rail 2, along upper and lower
Slide rail 2 carry out folding.Preferably, the material of described slide rail 2 is preferably steel or safety glass, further preferred for steel
Material.
Preferably, on the slide rail 2 of bottom or its underpart is also equipped with scale, for measuring the folding width of removable door 1
Degree.
Wherein, described food tray or fuel jet mouth 3 are arranged at inside fire whirl generating means, are used for providing stable flame
Source.Preferably, food tray or fuel jet mouth 3 are positioned at the middle position of fire whirl generating means, are more conducive to produce fire whirl.
According to embodiment of the present utility model, shown in Figure 1, HRR determinator, including exhaust fume collecting hood 4, cigarette
Road 5, gas analyser 6, thermocouple 8 and orifice flowmeter 9, wherein, one end cover cap of described exhaust fume collecting hood 4 fills at fire whirl
The top put, the other end is connected with flue 5；Gas analyser 6, thermocouple 8 and orifice flowmeter 9 is arranged in described flue 5.Heat
Rate of release determinator is arranged through various measuring cell and can measure heat in fire whirl generation evolution exactly and release
Put the Changing Pattern of speed and efficiency of combustion.
Wherein, exhaust fume collecting hood 4 is used for collecting combustion product gases, and its one end open direction is vertical with other end opening direction, and cover
Cover the one end open at fire whirl generating means and preferably become vertical pass more than fire whirl generating means opening, two opening directions
System, wherein, vertical with horizontal direction with the opening that flue 5 is connected with exhaust fume collecting hood 4.Exhaust fume collecting hood 4 cover cap is at fire whirl generating means
The lower dimension of opening is slightly larger than slide rail 2 size so that it is can be with back-off on the slide rail 2 on top.
Wherein, flue 5 is hollow structure, passes through for high-temperature flue gas, and preferred flue cross section is circular or square, enters
One step preferred flue cross section is square (the most a size of 11cm × 11cm), and the interior each measuring cell arranged of flue is with not shadow
Ring flue gas stream to be limited.
Wherein, it is internal that flue gas analyzer 6 is arranged at flue 5, mainly measures oxygen, carbon dioxide and carbon monoxide dense
Degree.Preferably, in each parts of flue its from seam the shortest (the preferably distance interface of distance of exhaust fume collecting hood 4 with flue 5
Place 70cm).Preferably, flue gas analyzer is flue gas analyzer annular sampler, and its ring is located in flue 5.
Wherein, HRR determinator can also include variable-speed shaft flow fan 7, and it is arranged in described flue close
On the position of exhaust fume collecting hood 4.Compared with the position of flue gas analyzer 6, its flue 5 from exhaust fume collecting hood 4 and flue 5 seam away from
Away from slightly (for example, 90cm).Speed change axial flow wind speed 7 should ensure that flue gas flow is not less than 0.024m3/s。
Wherein, thermocouple 8 is for measuring the real time temperature of flue gas.Preferred thermoelectric even 8 its be arranged at the axis of described flue 5
Position.Compared with the position of variable-speed shaft blower fan 7, its flue 5 the seam distance from exhaust fume collecting hood 4 and flue 5 slightly away from (such as
It is positioned at flue gas analyzer 6 rear end 25cm).
Preferably, described thermocouple 8 is armoured thermocouple, its external diameter size 1-1.6mm.
Wherein, orifice flowmeter 9 is used for measuring flow, the analogue signal that this flow-meter probe is measured by Data Control and
Data acquisition unit is connected to main frame.Described orifice flowmeter 9 is arranged along the axis of flue 5, and includes sampling aperture (in figure
Not shown), sampling aperture to offer direction contrary with airflow direction, to prevent flue dust blocking aperture.
Compared with the position of thermocouple 8, its flue 5 the seam distance from exhaust fume collecting hood 4 and flue 5 slightly away from (such as
It is positioned at thermocouple 8 15cm afterwards).
The fire whirl analogue measurement system principle of the present embodiment is as follows:
When the fuel in food tray or fuel jet mouth 3 is ignited, and the air above combustion product and burning things which may cause a fire disaster is at heat buoyancy
Driving lower rising, air tangentially enters cylindrical space from the gap at four sides and supplements, and forms rotary pneumatic under the effect of moment
Stream.Under the interaction of rotational momentum and Thermal plume ascending motion, common pond fire becomes the fire rotation that high degree of spiral rises
Wind burns.
Combustion product and air, under the effect of variable-speed shaft flow fan 7, enter flue 5 through exhaust fume collecting hood 4, pass through gas analysis
Instrument 6 measures oxygen concentration, and thermocouple 8 measures flue-gas temperature, and orifice flowmeter 9 determines flue gas stream by measuring orifice plate both sides pressure reduction
Amount, finally utilizes oxygen consumption method to measure the HRR of fire whirl burning.Then, in conjunction with fuel combustion mass loss rate and
The calorific value of fuel, it is thus achieved that the unit HRR of fuel and efficiency of combustion.
The feature of this device is: combined with HRR determinator by fire whirl analog, it is possible to pass through
Regulation gap opening width and burning things which may cause a fire disaster size, measure the HRR of fuel under different intake and burning things which may cause a fire disaster size condition.With
Time, this device applies also for studying the Changing Pattern of varying environment condition (pressure, oxygen concentration etc.) reducing internal heat cyclone firing efficiency.Should
Device provides the basis of experiment to the combustion characteristics further appreciating that fire whirl.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
Step describes in detail it should be understood that the foregoing is only specific embodiment of the utility model, is not limited to this reality
With novel, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection domain of the present utility model.
Claims (10)
1. a fire whirl analogue measurement system, it is characterised in that including:
Fire whirl generating means, including multiple removable doors and slide rail, also includes food tray or fuel jet mouth, wherein,
Described removable door is configured around fire whirl generating means, and carries out folding by slide rail；
Described food tray or fuel jet mouth are arranged at inside fire whirl generating means；
HRR determinator, including exhaust fume collecting hood, flue, gas analyser, thermocouple and orifice flowmeter, wherein,
One end cover cap of described exhaust fume collecting hood is connected with flue at the top of fire whirl generating means, the other end；
Gas analyser, thermocouple and orifice flowmeter is arranged in described flue.
Fire whirl analogue measurement system the most according to claim 1, it is characterised in that described removable door is around fire whirl
Generating means spaced set, the number of door is 4-12.
Fire whirl analogue measurement system the most according to claim 1, it is characterised in that described slide rail is arranged in fire whirl and sends out
The upper and lower of generating apparatus, described removable door carries out folding along the slide rail of upper and lower.
Fire whirl analogue measurement system the most according to claim 3, it is characterised in that on the slide rail of bottom or its underpart
It is also equipped with scale.
Fire whirl analogue measurement system the most according to claim 1, it is characterised in that the one end open side of described exhaust fume collecting hood
To vertical with other end opening direction, and cover cap is opened more than fire whirl generating means in the one end open of fire whirl generating means
Mouthful.
Fire whirl analogue measurement system the most according to claim 1, it is characterised in that described gas analyser is that flue gas divides
Analyzer annular sampler, ring is located in described flue.
Fire whirl analogue measurement system the most according to claim 1, it is characterised in that described HRR determinator
Also including variable-speed shaft flow fan, it is arranged in described flue on the position of exhaust fume collecting hood.
Fire whirl analogue measurement system the most according to claim 1, it is characterised in that described thermocouple is armouring thermoelectricity
Even.
Fire whirl analogue measurement system the most according to claim 1, it is characterised in that described orifice flowmeter is along flue
Axis arrange, and include sampling aperture, sampling aperture to offer direction contrary with airflow direction.
Fire whirl analogue measurement system the most according to claim 1, it is characterised in that described gas analyser, thermocouple
Arrange according to being gradually distance from the flue position with collection flue adapter with orifice flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523553.XU CN205785746U (en) | 2016-05-27 | 2016-05-27 | A kind of fire whirl analogue measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523553.XU CN205785746U (en) | 2016-05-27 | 2016-05-27 | A kind of fire whirl analogue measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205785746U true CN205785746U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620523553.XU Expired - Fee Related CN205785746U (en) | 2016-05-27 | 2016-05-27 | A kind of fire whirl analogue measurement system |
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| Country | Link |
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| CN (1) | CN205785746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017848A (en) * | 2016-05-27 | 2016-10-12 | 中国科学技术大学 | Fire whirl simulation measuring system |
| CN109959753A (en) * | 2019-03-26 | 2019-07-02 | 上海海事大学 | A kind of corrosion chamber for accelerating processing oil spilling |
-
2016
- 2016-05-27 CN CN201620523553.XU patent/CN205785746U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017848A (en) * | 2016-05-27 | 2016-10-12 | 中国科学技术大学 | Fire whirl simulation measuring system |
| CN106017848B (en) * | 2016-05-27 | 2019-01-22 | 中国科学技术大学 | A kind of fire whirl analogue measurement system |
| CN109959753A (en) * | 2019-03-26 | 2019-07-02 | 上海海事大学 | A kind of corrosion chamber for accelerating processing oil spilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 |