CN105929103A - Device and method for measuring combustion speed of combustible liquids - Google Patents
Device and method for measuring combustion speed of combustible liquids Download PDFInfo
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- CN105929103A CN105929103A CN201610239336.2A CN201610239336A CN105929103A CN 105929103 A CN105929103 A CN 105929103A CN 201610239336 A CN201610239336 A CN 201610239336A CN 105929103 A CN105929103 A CN 105929103A
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- flammable liquid
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- burn rate
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- cooling water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Combustion & Propulsion (AREA)
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- Engineering & Computer Science (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention relates to a device and method for measuring the combustion speed of combustible liquids. The device comprises an oil disc, the oil disc is arranged on a weight sensor, the weight sensor is connected to a computer through a signal line, the end, which is close to the oil disc, of the signal line is wrapped by a fireproof blanket, and the weight sensor is connected to a cooling water pipe. The provided device and method can provide more valuable test data for large-scale experiments and fire disaster research; the device will not be damaged by the high temperature of flames given by the combustible liquid during the experiments, the combustion speed of each time can be known, thus the experiment can be better monitored, the artificial error is reduced, and the realtime results become more accurate.
Description
Technical field
The invention belongs to Research on Security Technology field, relate to the survey of a kind of flammable liquid burn rate
Electricity testing device and method of testing thereof.
Background technology
At present, burn rate reflects the amount of unit interval burning-off combustible.Burn rate is fire
One of calamity evolution basic parameter, dangerous by the analysis of burn rate but having been determined combustible
The evaluation of property.Accordingly, it is determined that burn rate is flame scientific research and Analysis of Fire Hazard
One important factor.Burn rate reflects the quantity of unit interval burning-off combustible, so passing
The method of system takes certain amount accurately, carries out free combustion, simultaneously with the stopwatch record time.
Again by can be calculated burn rate, but have some by mistake by the time of stopwatch record
Difference.Application publication number CN 103424331 A relates to the detection method of a kind of cigarette burn rate,
Cigarette is lighted on balance by this patent, and quality after record per second burning, finally by calculating
Draw the burn rate of Medicated cigarette.Application publication number CN 101738350 A relates to implementing continuously to survey
The device and method of examination combustion speed of candle, wax candle is placed on balance by this patent, by calculating
Machine sets time interval, then according to the time of setting stores wax candle quality, finally by calculating
Go out combustion speed of candle.Above two prior aries are all with balance measurement, and flame temperature
Not being high temperature, test for flammable liquid burn rate, it has following defects that (1) sky
Flat measurement scope is little, and the data drawn cannot meet the test data of simulated fire；(2) flammable
Liquid ignition temperature is high, uses balance meeting destructive test instrument, affects test data.To this end,
Need test device and the method for testing thereof of a kind of flammable liquid burn rate, solve prior art
In the presence of the problems referred to above, it is achieved large-scale experiment and provide more valuable examination to fire research
Test data, it is ensured that in test, the high temperature of flammable liquid flame will not destructive test device, it is achieved know
The burn rate at road per a moment, the most in real time monitoring；Reduce personal error so that measure knot
During fruit accurate.
Summary of the invention
It is an object of the invention to provide a kind of flammable liquid burn rate test device and
Method of testing, solves the problems referred to above in the presence of prior art, it is achieved large-scale experiment and to fire
Calamity research provides more valuable test data, it is ensured that in test, the high temperature of flammable liquid flame is not
Meeting destructive test device, it is achieved know the burn rate at per a moment, the most in real time monitoring；Subtract
Few personal error so that measurement result is the most accurate.
For achieving the above object, one aspect of the present invention provides the survey of a kind of flammable liquid burn rate
Electricity testing device, including food tray, food tray is arranged on LOAD CELLS, and LOAD CELLS passes through signal
Line is connected with computer, and holding wire is provided with fire blanket near one end of food tray parcel, biography of weighing
Sensor is connected with cooling water pipe.
In above scheme preferably, the quantity of LOAD CELLS is at least three.
It may also be preferred that food tray is horizontally set on LOAD CELLS.
It may also be preferred that LOAD CELLS is uniformly and symmetrically distributed.
It may also be preferred that cooling water pipe is provided with flowing cooling water.
Another aspect of the present invention provides the method for testing of a kind of flammable liquid burn rate, and it uses
The test device of the flammable liquid burn rate described in any of the above item, comprises the following steps: the
One step, builds test device, is lain in a horizontal plane in by food tray on LOAD CELLS, by weighing and sensing
Device is connected on computer by holding wire, is wrapped up near food tray end fire blanket by holding wire,
Connect cooling water pipe to LOAD CELLS, open flow cooling water, LOAD CELLS cooling to be dropped
Temperature, prevents from burning；Second step, is drifted about by the software zeroing of computer and deducts food tray
Weight, imports flammable liquid, the weighing data of real-time monitoring and test gained；3rd step, lights
Flammable liquid, by real-time monitoring of computer, draws the flammable liquid residuals weight in each moment,
By calculating burn rate.
The test device of the flammable liquid burn rate of the present invention and method of testing thereof, it is possible to not office
It is limited to balance small-scale test, large-scale experiment can be done, provide more valuable examination to fire research
Test data；Ensure that in test, the high temperature of flammable liquid flame will not destructive test device；Energy
Enough by computer real-time monitoring it is known that the burn rate at per a moment, supervise the most in real time
Control；Can pass through computer recording weight and time, minimizing personal error, measurement result are real-time
Accurately.It has the advantage that (1) surveys several kilograms to hundreds of kilogram flammable liquid free combustions
Speed, range is big, provides accurate data to the analysis of flame, the assessment of fire.(2) test
Omnidistance by computer acquisition, weight is accurately at 0.01kg, and time automatic record per second, than biography
The use stopwatch of system is compared, and personal error is little.(3) test can be chosen with segmentation, burning early stage,
Burning mid-term, the every segment data of burn rate of late combustion.(4) test device build simply,
The suitability is extensive, low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the test device of the flammable liquid burn rate of the present invention.
In figure, 1 is food tray, and 2 is LOAD CELLS, and 3 is fire blanket, and 4 is holding wire, 5
For computer, 6 is cooling water pipe.
Detailed description of the invention
In order to be more fully understood that the present invention, below in conjunction with specific embodiment, the present invention is made in detail
Explanation.It is clear that the present invention can be carried out different modification and remodeling and without departing from rear attached power
Profit requires the broader spirit and scope of the present invention limited.Therefore, following example have illustration
Property and do not have conditional implication.
Embodiment:
A kind of test device of flammable liquid burn rate, as it is shown in figure 1, include food tray 1,
Food tray 1 is arranged on LOAD CELLS 2, and LOAD CELLS 2 is by holding wire 4 and computer
5 are connected, and holding wire 4 is provided with fire blanket 3, weighing and sensing near one end of food tray 1 parcel
Device 2 is connected with cooling water pipe 6.
In the above-described embodiments, the quantity of LOAD CELLS 2 is at least three.
In the above-described embodiments, food tray 1 is horizontally set on LOAD CELLS 2.
In the above-described embodiments, LOAD CELLS 2 is uniformly and symmetrically distributed.
In the above-described embodiments, cooling water pipe 6 is provided with flowing cooling water.
The method of testing of a kind of flammable liquid burn rate, uses flammable liquid as above to fire
Burn the test device of speed, comprise the following steps: the first step, build test device, by food tray
1 lies in a horizontal plane on LOAD CELLS 2, is connected to by holding wire 4 by LOAD CELLS 2
On computer 5, holding wire 4 is wrapped up near food tray end fire blanket 3, connect cooling water pipe
6 to LOAD CELLS 2, LOAD CELLS 2 is cooled by open flow cooling water, prevents
Burn；Second step, is drifted about by the software zeroing of computer 5, goes the matter of oil removing plate 1
After amount resets, import flammable liquid, the weighing data of real-time monitoring and test gained；3rd step,
Light flammable liquid, monitored in real time by computer 5, show that the flammable liquid in each moment remains
Remaining weight, calculates burn rate by formula (1).
In formula (1), p is burn rate, (kg/s),
m1For initial mass, (kg),
m2For residual mass, (kg),
T is burning time, (s).
The test device of the flammable liquid burn rate of the present invention and method of testing thereof, such as, test
Expoxy propane is burn rate in diameter 2.4m food tray 1.Food tray 1 horizontal homogeneous is placed on
In three table scale weight sensors 2, make each table scale weight sensor 2 stress balance, then biography of weighing
Sensor 2 is connected with harvester by holding wire 4, and harvester is connected with computer 5.Distance oil
Dish 1 is that holding wire 4 fire blanket 3 in 3m wraps up, and protection holding wire 4 is the most not
Being burned out, every table scale weight sensor 2 surrounding disposes cooling water pipe 6, it is ensured that in cooling water pipe 6
The water moment spray LOAD CELLS 2.The test device of flammable liquid burn rate is connected
After, open the weighing software on computer 5, weight in food tray 1 is removed the weight of food tray 1
Resetting, expoxy propane imports in food tray 1, and importing expoxy propane amount is 139.094kg, lights
Expoxy propane, starts igniting, records test data, can measure epoxy third in food tray 1 per second
Alkane residual mass.When to 30s, residual epoxide propane quality 125.489 in food tray 1；When
During to 60s, residual epoxide propane quality 113.945kg in food tray 1；When to 90s, oil
Residual epoxide propane quality 101.874kg in dish 1.Calculate burn rate, in drawing front 30s
Average combustion rate 0.433kg/s, front 90s in average combustion rate 0.466kg/s, front 60s
Interior average combustion rate 0.422kg/s.
Or such as test 93#Gasoline is burn rate in diameter 2.4m food tray.By uniform for food tray 1
It is placed on the signal after LOAD CELLS 2 is wrapped up in three table scale weight sensors 2 by fire blanket 3
Line 4 is connected with harvester, connects the cooling water pipe 6 of each LOAD CELLS 2.Unlatching is weighed
Software, pours 93 into after peeling of weighing#Gasoline 56.325kg, opens cooling water, acquisition software,
Igniting starts to measure.Between when burnt during 30s, data display 50.107kg.When burnt
Between 60s time, data display 43.371kg.Between when burnt during 90s, data show
33.186kg.In drawing front 30s, average combustion rate is 0.207kg/s；30s-60s puts down
All burn rates are 0.224kg/s；60s-90s average combustion rate is 0.3395kg/s.
Claims (6)
1. a test device for flammable liquid burn rate, including food tray (1), food tray (1)
Being arranged on LOAD CELLS (2), LOAD CELLS (2) is by holding wire (4) and meter
Calculation machine (5) is connected, it is characterised in that: holding wire (4) is near one end of food tray (1)
Parcel is provided with fire blanket (3), and LOAD CELLS (2) is connected with cooling water pipe (6).
2. the test device of flammable liquid burn rate as claimed in claim 1, its feature exists
In: the quantity of LOAD CELLS (2) is at least three.
3. the test device of flammable liquid burn rate as claimed in claim 2, its feature exists
In: food tray (1) is horizontally set on LOAD CELLS (2).
4. the test device of flammable liquid burn rate as claimed in claim 2, its feature exists
In: LOAD CELLS (2) is uniformly and symmetrically distributed.
5. the test dress of the flammable liquid burn rate as according to any one of claim 1-4
Put, it is characterised in that: cooling water pipe (6) is provided with flowing cooling water.
6. a method of testing for flammable liquid burn rate, uses as appointed in claim 1-5
The test device of one described flammable liquid burn rate, comprises the following steps: the first step,
Build test device, food tray (1) is lain in a horizontal plane on LOAD CELLS (2), will weigh
Sensor (2) is connected on computer (5), by holding wire (4) by holding wire (4)
Near food tray end with fire blanket (3) wrap up, connect cooling water pipe (6) to LOAD CELLS (2),
LOAD CELLS (2) is cooled by open flow cooling water, prevents from burning；Second step,
Drifted about by the software zeroing of computer (5), the weight of deduction food tray (1), import
Flammable liquid, the weighing data of real-time monitoring and test gained；3rd step, lights flammable liquid,
Monitored in real time by computer (5), draw the flammable liquid residuals weight in each moment, logical
Cross and calculate burn rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610239336.2A CN105929103A (en) | 2016-04-18 | 2016-04-18 | Device and method for measuring combustion speed of combustible liquids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610239336.2A CN105929103A (en) | 2016-04-18 | 2016-04-18 | Device and method for measuring combustion speed of combustible liquids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105929103A true CN105929103A (en) | 2016-09-07 |
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ID=56838293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610239336.2A Pending CN105929103A (en) | 2016-04-18 | 2016-04-18 | Device and method for measuring combustion speed of combustible liquids |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6335400Y2 (en) * | 1981-10-16 | 1988-09-20 | ||
| CN2738239Y (en) * | 2004-10-03 | 2005-11-02 | 钟方明 | Apparatus for on-line metering materiality of matter utilizing heating weightlessness |
| CN2811985Y (en) * | 2005-08-01 | 2006-08-30 | 重庆大学 | Dynamic heat release rate measurer in fire experiment of an atrium model |
| CN101246135A (en) * | 2008-02-16 | 2008-08-20 | 中国石油化工股份有限公司 | Device for testing wet goods burning rate |
| CN101738350A (en) * | 2009-12-24 | 2010-06-16 | 大连达伦特工艺品有限公司 | Device and method for continuously testing combustion speed of candle in real time |
| CN202066575U (en) * | 2011-05-23 | 2011-12-07 | 公安部上海消防研究所 | High-temperature resistant weighbridge for measuring burning rate of combustibles |
| CN102331440A (en) * | 2011-06-22 | 2012-01-25 | 公安部上海消防研究所 | Device and method for measuring combustion characteristics of combustible materials |
| CN102879292A (en) * | 2012-09-25 | 2013-01-16 | 中国科学技术大学 | Combustion experimental facility capable of realizing continuousness and stability of liquid level |
| CN103424331A (en) * | 2013-08-05 | 2013-12-04 | 中国农业科学院烟草研究所 | Detection method for cigarette burning rates |
| CN104977222A (en) * | 2015-06-24 | 2015-10-14 | 河南理工大学 | Mass loss rate-based combustible liquid heat release rate testing system |
| CN105181177A (en) * | 2015-10-13 | 2015-12-23 | 中国石油化工股份有限公司 | Method for testing flame temperature of combustible liquid |
| CN205506780U (en) * | 2016-04-18 | 2016-08-24 | 中国石油化工股份有限公司 | Actual measurement flammable liquid combustibility rate device |
-
2016
- 2016-04-18 CN CN201610239336.2A patent/CN105929103A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6335400Y2 (en) * | 1981-10-16 | 1988-09-20 | ||
| CN2738239Y (en) * | 2004-10-03 | 2005-11-02 | 钟方明 | Apparatus for on-line metering materiality of matter utilizing heating weightlessness |
| CN2811985Y (en) * | 2005-08-01 | 2006-08-30 | 重庆大学 | Dynamic heat release rate measurer in fire experiment of an atrium model |
| CN101246135A (en) * | 2008-02-16 | 2008-08-20 | 中国石油化工股份有限公司 | Device for testing wet goods burning rate |
| CN101738350A (en) * | 2009-12-24 | 2010-06-16 | 大连达伦特工艺品有限公司 | Device and method for continuously testing combustion speed of candle in real time |
| CN202066575U (en) * | 2011-05-23 | 2011-12-07 | 公安部上海消防研究所 | High-temperature resistant weighbridge for measuring burning rate of combustibles |
| CN102331440A (en) * | 2011-06-22 | 2012-01-25 | 公安部上海消防研究所 | Device and method for measuring combustion characteristics of combustible materials |
| CN102879292A (en) * | 2012-09-25 | 2013-01-16 | 中国科学技术大学 | Combustion experimental facility capable of realizing continuousness and stability of liquid level |
| CN103424331A (en) * | 2013-08-05 | 2013-12-04 | 中国农业科学院烟草研究所 | Detection method for cigarette burning rates |
| CN104977222A (en) * | 2015-06-24 | 2015-10-14 | 河南理工大学 | Mass loss rate-based combustible liquid heat release rate testing system |
| CN105181177A (en) * | 2015-10-13 | 2015-12-23 | 中国石油化工股份有限公司 | Method for testing flame temperature of combustible liquid |
| CN205506780U (en) * | 2016-04-18 | 2016-08-24 | 中国石油化工股份有限公司 | Actual measurement flammable liquid combustibility rate device |
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Application publication date: 20160907 |
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