CN106872640A - The test device of the critical propagation diameter of fuel gas - Google Patents
The test device of the critical propagation diameter of fuel gas Download PDFInfo
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- CN106872640A CN106872640A CN201710247633.6A CN201710247633A CN106872640A CN 106872640 A CN106872640 A CN 106872640A CN 201710247633 A CN201710247633 A CN 201710247633A CN 106872640 A CN106872640 A CN 106872640A
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- G—PHYSICS
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- 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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Abstract
The present invention relates to a kind of test device of the critical propagation diameter of fuel gas, the safe of micro passage reaction in the prior art is mainly solved the problems, such as.The present invention is by the test device using a kind of critical propagation diameter of fuel gas, including air steel cylinder, fuel gas steel cylinder, blender, reactor, vavuum pump, propagate pipe, sparker, ignitor, air steel cylinder and fuel gas steel cylinder are connected by pipeline with blender, mixer outlet is connected with reactor inlet, reactor outlet is connected with vacuum pump inlet, the propagation pipe of different-diameter is installed on reactor, ignitor one end is connected with reactor, the technical scheme that one end is connected with sparker preferably solves above mentioned problem, can be used in the test of the critical propagation diameter of fuel gas.
Description
Technical field
The present invention relates to a kind of test device of the critical propagation diameter of fuel gas.
Background technology
Petrochemical industry fuel gas species is more, and quantity is big, such as common methane, ethane, propane, ethene, acetylene,
The critical propagation diameter that research variety classes gas occurs after fire explosion has important reality for the prevention and control of fire explosion
Meaning.《Numerical simulation of the miniature circular tube structure to flame propagation inhibitory action》Using experiment and the means of simulation, to combustible gas
Body flame is conducted in-depth research by the form of pipe, has obtained parameter and the quenching distances such as flame speed, pipe diameter
Relation, for convenience of engineer applied, obtain the minimum quenching diameter that fuel gas does not occur flame propagation in microreactor, root
According to microreactor material, the test device and method of this critical propagation diameter have been formulated.
The content of the invention
The technical problems to be solved by the invention are the safe problems of micro passage reaction in the prior art, there is provided a kind of
The test device of the critical propagation diameter of new fuel gas.The installation method has convenient test, the accurate advantage of data.
To solve the above problems, the technical solution adopted by the present invention is as follows：A kind of survey of the critical propagation diameter of fuel gas
Trial assembly is put, and described device includes air steel cylinder, fuel gas steel cylinder, blender, reactor, vavuum pump, propagation pipe, electric spark hair
Raw device, ignitor, air steel cylinder and fuel gas steel cylinder are connected by pipeline with blender, and mixer outlet enters with reactor
Mouth is connected, and reactor outlet is connected with vacuum pump inlet, and the propagation pipe of different-diameter, ignitor one end are provided with reactor
It is connected with reactor, one end is connected with sparker.
In above-mentioned technical proposal, it is preferable that pressure vacuum gauge is installed on reactor.
In above-mentioned technical proposal, it is preferable that it is transparent specific glass FOTURAN, pipe range 5-30cm to propagate tubing matter.
In above-mentioned technical proposal, it is preferable that reactor material is 204 stainless steels.
In above-mentioned technical proposal, it is preferable that air is stoichiometric concentration with the mol ratio of fuel gas.
In above-mentioned technical proposal, it is preferable that it is 0.2~5mm to propagate pipe diameter scope.
In above-mentioned technical proposal, it is preferable that when carrying out the critical propagation diameter of fuel gas and testing, by blender and reactor
After vacuumizing, air enters reactor after being well mixed with the blended device of fuel gas, is then cut off blender with reactor
Connection, the electric spark produced by sparker lights centinormal 1 combustible gas and air in reactor by ignitor
Gaseous mixture, whether observation flame propagated by propagating pipe, if flame propagation, change the smaller propagation pipe of diameter and surveyed
Examination；Otherwise, the propagation pipe that need to change major diameter retests, and finally gives fuel gas flame propagation under air conditionses and faces
Boundary's diameter.
Prior art does not find to test the method for testing of the critical propagation diameter of fuel gas, and the research of critical propagation diameter is only
It is present among literature research, this patent is tested for the critical propagation diameter of variety classes fuel gas, effectively fills out
The deficiency of existing means of testing has been mended, preferable technique effect has been achieved.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of device of the present invention.
In Fig. 1,1. air steel cylinder；2. flammable gas cylinder；3. blender；4. reactor；5. ignitor；6. different-diameter
Propagation pipe；7. pressure vacuum gauge；8. sparker；9. vavuum pump.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Specific embodiment
【Embodiment 1】
A kind of method of testing of the critical propagation diameter of fuel gas, for testing methane with air in 50 DEG C, condition of normal pressure
Critical propagation diameter, flow is as shown in Figure 1.The critical biography of methane is carried out using the test device of the critical propagation diameter of fuel gas
Diameter test is broadcast, described device includes air steel cylinder, methane steel cylinder, blender, reactor, vavuum pump, propagation pipe, electric spark hair
Raw device, ignitor, air steel cylinder and methane steel cylinder are connected by pipeline with blender, mixer outlet and reactor inlet phase
Even, reactor outlet is connected with vacuum pump inlet, be provided with reactor different-diameter propagation pipe (diameter range for 0.2~
5mm, it is transparent specific glass FOTURAN, pipe range 10cm to propagate tubing matter), ignitor one end is connected with reactor, one end
It is connected with sparker；When carrying out the critical propagation diameter of methane and testing, after blender and reactor are vacuumized, air with
Enter reactor after the blended device of methane is well mixed, be then cut off the connection of blender and reactor, occur by electric spark
The electric spark that device is produced is lighted gaseous mixture (air and the methane of centinormal 1 methane and air in reactor by ignitor
Mol ratio is 9.5:1), whether observation flame is propagated by propagating pipe, if flame spreads out of, changes the smaller propagation pipe of diameter
Tested；Otherwise, the propagation pipe that need to change major diameter is retested, and is finally given fuel gas flame under air conditionses and is passed
The cut off diameter broadcast.
【Embodiment 2】
A kind of method of testing of the critical propagation diameter of fuel gas, the critical propagation diameter for testing ethene and air,
Flow is as shown in Figure 1.100 DEG C are carried out using the test device of the critical propagation diameter of fuel gas, condition of normal pressure lower critical is propagated
Diameter is tested, and described device includes that air steel cylinder, ethene steel cylinder, blender, reactor, vavuum pump, propagation pipe, electric spark occur
Device, ignitor, air steel cylinder and ethene steel cylinder are connected by pipeline with blender, mixer outlet and reactor inlet phase
Even, reactor outlet is connected with vacuum pump inlet, and the propagation pipe of different-diameter is provided with reactor, and (diameter range is 0.2-
5mm, it is transparent specific glass FOTURAN, pipe range 10cm to propagate tubing matter), ignitor one end is connected with reactor, one end
It is connected with sparker；When carrying out ethene critical propagation diameter being tested in atmosphere, blender and reactor are vacuumized
Afterwards, reactor is entered after air is well mixed with the blended device of ethene, the connection of blender and reactor is then cut off, by electricity
The electric spark that spark generator is produced is lighted the gaseous mixture (air of centinormal 1 ethene and air in reactor by ignitor
It is 14.3 with the mol ratio of ethene:1), whether observation flame is propagated by propagating pipe, if flame propagation, changes diameter more
Small propagation pipe is tested；Otherwise, the propagation pipe that need to change major diameter is retested, and finally gives fuel gas in air bar
The cut off diameter of flame propagation under part.
【Embodiment 3】
A kind of method of testing of the critical propagation diameter of fuel gas, the critical propagation diameter for testing hydrogen and air,
Flow is as shown in Figure 1.150 DEG C are carried out using the test device of the critical propagation diameter of fuel gas, condition of normal pressure lower critical is propagated
Diameter is tested, and described device includes that air steel cylinder, hydrogen gas cylinder, blender, reactor, vavuum pump, propagation pipe, electric spark occur
Device, ignitor, air steel cylinder and hydrogen gas cylinder are connected by pipeline with blender, mixer outlet and reactor inlet phase
Even, reactor outlet is connected with vacuum pump inlet, and the propagation pipe of different-diameter is provided with reactor, and (diameter range is 0.2-
5mm, it is transparent specific glass FOTURAN, pipe range 10cm to propagate tubing matter), ignitor one end is connected with reactor, one end
It is connected with sparker；When carrying out hydrogen critical propagation diameter being tested in atmosphere, blender and reactor are vacuumized
Afterwards, reactor is entered after air is well mixed with the blended device of hydrogen, the connection of blender and reactor is then cut off, by electricity
The electric spark that spark generator is produced is lighted the gaseous mixture (air of centinormal 1 hydrogen and air in reactor by ignitor
It is 2.4 with the mol ratio of hydrogen：1), whether observation flame is propagated by propagating pipe, if flame propagation, changes diameter smaller
Propagation pipe tested；Otherwise, the propagation pipe that need to change major diameter is retested, and finally gives fuel gas in air conditionses
The cut off diameter of lower flame propagation.
【Embodiment 4】
A kind of method of testing of the critical propagation diameter of fuel gas is straight with the critical propagation of air for testing oxirane
Footpath, flow is as shown in Figure 1.150 DEG C are carried out using the test device of the critical propagation diameter of fuel gas, condition of normal pressure lower critical is passed
Diameter test is broadcast, described device includes air steel cylinder, oxirane steel cylinder, blender, reactor, vavuum pump, propagation pipe, electricity fire
Flower generator, ignitor, air steel cylinder and oxirane steel cylinder be connected by pipeline with blender, mixer outlet and reacts
Device entrance is connected, and reactor outlet is connected with vacuum pump inlet, and the propagation pipe (diameter range of different-diameter is provided with reactor
It is 0.2-5mm, it is transparent specific glass FOTURAN, pipe range 10cm to propagate tubing matter), ignitor one end and phase in reactor
Even, one end is connected with sparker；When carrying out oxirane critical propagation diameter being tested in atmosphere, by blender and anti-
After answering device to vacuumize, air enters reactor after being well mixed with the blended device of oxirane, is then cut off blender with reaction
The connection of device, the electric spark produced by sparker lights centinormal 1 oxirane in reactor by ignitor
(air is 11.9 with the mol ratio of oxirane with the gaseous mixture of air:1), whether observation flame is propagated by propagating pipe, such as
Fruit flame propagation, then change the smaller propagation pipe of diameter and tested；Otherwise, the propagation pipe that need to change major diameter is retested,
Finally give the cut off diameter of fuel gas flame propagation under air conditionses.
【Embodiment 5】
A kind of method of testing of the critical propagation diameter of fuel gas, the critical propagation diameter for testing acetylene and air,
Flow is as shown in Figure 1.150 DEG C are carried out using the test device of the critical propagation diameter of fuel gas, condition of normal pressure lower critical is propagated
Diameter is tested, and described device includes that air steel cylinder, acetylene cylinder, blender, reactor, vavuum pump, propagation pipe, electric spark occur
Device, ignitor, air steel cylinder and acetylene cylinder are connected by pipeline with blender, mixer outlet and reactor inlet phase
Even, reactor outlet is connected with vacuum pump inlet, and the propagation pipe of different-diameter is provided with reactor, and (diameter range is 0.2-
5mm, it is transparent specific glass FOTURAN, pipe range 10cm to propagate tubing matter), ignitor one end is connected with reactor, one end
It is connected with sparker；When carrying out acetylene critical propagation diameter being tested in atmosphere, blender and reactor are vacuumized
Afterwards, reactor is entered after air is well mixed with the blended device of acetylene, the connection of blender and reactor is then cut off, by electricity
The electric spark that spark generator is produced is lighted the gaseous mixture (air of centinormal 1 acetylene and air in reactor by ignitor
It is 11.9 with the mol ratio of acetylene:1), whether observation flame is propagated by propagating pipe, if flame propagation, changes diameter more
Small propagation pipe is tested；Otherwise, the propagation pipe that need to change major diameter is retested, and finally gives fuel gas in air bar
The cut off diameter of flame propagation under part.
Claims (7)
1. a kind of test device of the critical propagation diameter of fuel gas, described device includes air steel cylinder, fuel gas steel cylinder, mixed
Clutch, reactor, vavuum pump, propagation pipe, sparker, ignitor, air steel cylinder and fuel gas steel cylinder are by pipe
Road is connected with blender, and mixer outlet is connected with reactor inlet, and reactor outlet is connected with vacuum pump inlet, on reactor
The propagation pipe of different-diameter is installed, ignitor one end is connected with reactor, and one end is connected with sparker.
2. the test device of the critical propagation diameter of fuel gas according to claim 1, it is characterised in that installed on reactor
There is pressure vacuum gauge.
3. the test device of the critical propagation diameter of fuel gas according to claim 1, it is characterised in that propagating tubing matter is
Transparent specific glass FOTURAN, pipe range 5-30cm.
4. the test device of the critical propagation diameter of fuel gas according to claim 1, it is characterised in that reactor material is
204 stainless steels.
5. the test device of the critical propagation diameter of fuel gas according to claim 1, it is characterised in that air and combustible gas
The mol ratio of body is stoichiometric concentration.
6. the test device of the critical propagation diameter of fuel gas according to claim 1, it is characterised in that propagate pipe diameter model
It is 0.2~5mm to enclose.
7. the test device of the critical propagation diameter of fuel gas according to claim 1, it is characterised in that carry out fuel gas
When critical propagation diameter is tested, after blender and reactor are vacuumized, after air is well mixed with the blended device of fuel gas
Into reactor, the connection of blender and reactor is then cut off, by the electric spark of sparker generation by ignition power
Whether the gaseous mixture of centinormal 1 combustible gas and air in limit combustion reactor, observation flame is propagated by propagating pipe, if
Flame propagation, then change the smaller propagation pipe of diameter and tested；Otherwise, the propagation pipe that need to change major diameter is retested, most
The cut off diameter of fuel gas flame propagation under air conditionses is obtained eventually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710247633.6A CN106872640A (en) | 2017-04-17 | 2017-04-17 | The test device of the critical propagation diameter of fuel gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710247633.6A CN106872640A (en) | 2017-04-17 | 2017-04-17 | The test device of the critical propagation diameter of fuel gas |
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| CN106872640A true CN106872640A (en) | 2017-06-20 |
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| CN201710247633.6A Pending CN106872640A (en) | 2017-04-17 | 2017-04-17 | The test device of the critical propagation diameter of fuel gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668647A (en) * | 2017-10-17 | 2019-04-23 | 中国石油化工股份有限公司 | The quickly device of test fuel gas firing temperature |
| CN111156934A (en) * | 2018-11-08 | 2020-05-15 | 中国石油化工股份有限公司 | Test system for testing safe size of micro-channel |
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| CN2138302Y (en) * | 1992-09-05 | 1993-07-14 | 中国石油化工总公司安全技术研究所 | Flame propagation speed monitor |
| JP2001337060A (en) * | 2000-05-30 | 2001-12-07 | Ishikawajima Harima Heavy Ind Co Ltd | Apparatus for testing burning of pulverized coal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668647A (en) * | 2017-10-17 | 2019-04-23 | 中国石油化工股份有限公司 | The quickly device of test fuel gas firing temperature |
| CN111156934A (en) * | 2018-11-08 | 2020-05-15 | 中国石油化工股份有限公司 | Test system for testing safe size of micro-channel |
| CN111156934B (en) * | 2018-11-08 | 2021-11-02 | 中国石油化工股份有限公司 | Test system for testing safe size of micro-channel |
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Application publication date: 20170620 |