CN208544429U - A kind of fuel-tank inert gas system based on corona discharge technology - Google Patents
A kind of fuel-tank inert gas system based on corona discharge technology Download PDFInfo
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- CN208544429U CN208544429U CN201820987703.1U CN201820987703U CN208544429U CN 208544429 U CN208544429 U CN 208544429U CN 201820987703 U CN201820987703 U CN 201820987703U CN 208544429 U CN208544429 U CN 208544429U
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- blower
- control valve
- electric control
- fuel tank
- fuel
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- 239000002828 fuel tank Substances 0.000 title claims abstract description 52
- 238000005516 engineering process Methods 0.000 title claims abstract description 22
- 239000011261 inert gas Substances 0.000 title claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 40
- 239000001301 oxygen Substances 0.000 claims abstract description 32
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000446 fuel Substances 0.000 claims abstract description 12
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 4
- 238000006731 degradation reaction Methods 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 21
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 10
- 239000007792 gaseous phase Substances 0.000 abstract description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 4
- 150000002500 ions Chemical class 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 229920004449 Halon® Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- -1 and inflammable Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000010761 intermediate fuel oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The fuel-tank inert gas system based on corona discharge technology that the utility model discloses a kind of, fuel tank upper gaseous phase space fuel vapor and air mixture are passed into corona reactor, pass through the corona discharge of corona wire, produce a large amount of electronics, ion, oxygen plasma and ozone, fuel vapor is acted on, is decomposed and is aoxidized;Oxygen in reaction process consumed cabin air, the nitrogen-rich gas after reaction flow into fuel tank and are rinsed inerting.The utility model can operate at normal temperatures and pressures, and removal efficiency is high, operating cost is low, substantially without secondary pollution, and operational management is convenient.
Description
Technical field
The utility model belongs to air line technical field, is related to a kind of aircraft fuel-tank inert gas system, in particular to
A kind of fuel-tank inert gas system based on corona discharge technology.
Background technique
The safety problem of modern aircraft is all the time by social extensive concern, and fuel system burning, explosion are to draw
One of the main reason for playing aviation accident.There is data to suggest that United States Air Force is damaged by ground fire attack in Vietnam War
Thousands of airplanes are lost, wherein since fuel tanker explosion on fire causes the ratio of fatal crass to be as high as 50%.Cabin security study
Technology group (cabin safety research technical group, GSRTG) was to 1966 to 2009 whole world
3726 civil aircraft accident statistics are the results show that share 370 accidents related with fuel tank combustion explosion.It can be seen that, it is necessary to it uses
Effective measures prevent the aircraft fuel tank from firing.
Aircraft fuel tank upper space is full of flammable gas mixture, and inflammable, explosive feature seriously threatens aircraft
Safety, it is necessary to adopt an effective measure to reduce the probability of its combustion, outburst life, and reduce its extent of injury.System is protected in fuel tank
In, fuel tank explosion on fire can be prevented by reducing fuel tank upper gaseous phase space oxygen concentration, guarantee passenger and aircraft safety.Reduce fuel oil
Case oxygen concentration can be used the gases such as inert gas such as nitrogen and carbon dioxide and carry out fuel tank inerting, and being reduced to its oxygen content can
Fire the limit or less.
Common aircraft fuel tank oxygen concentration control technology mainly have liquid nitrogen inerting technology, 1301 inerting technology of Halon,
Sieve technology, membrane separation technique etc..Wherein hollow-fibre membrane produces the airborne nitrogen inerting technology (On-Board processed of nitrogen-rich gas
Inert Gas Generator System, OBIGGS) it is that most economical, practical fuel tanker fires suppression technology.But
OBIGGS technology is there are still many problems, as seperation film low efficiency leads to that aircraft panelty is big, seperation film entrance demand pressure
Height leads to not to be available (such as helicopter) on many types, tiny film wire and infiltration aperture gradually block and gas source in ozone
Cause causes fuel-steam to leak when serious film properties decaying, nitrogen-rich gas filling fuel tank pollutes environment etc..
For many years, domestic and foreign scholars have conducted extensive research lower temperature plasma technology.These are studies have shown that with other
Lower temperature plasma technology is compared, and corona discharge technology, which handles VOCs, has treatment effeciency height, capacity usage ratio height, plant maintenance
Simply, advantages, the development prospects such as expense is low are wide.Corona discharge refers in inhomogeneous field, under higher electric field strength,
Gas generates " electron avalanche ", a large amount of free electron occurs, these electronics are accelerated and obtained under the action of electric field force
Obtain energy.When the energy that these electronics have is same or similar with the bond energy of C-H, C=C or C-C key, so that it may break these
Key, to destroy the structure of organic matter.Corona discharge can produce the object with Strong oxdiative ability using ozone as representative simultaneously
Matter, can be with oxidation of organic compounds.So corona method handles VOCs, the theoretically above two coefficient result of mechanism.This reality
Corona discharge technology is applied in aircraft fuel-tank inert gas system with novel, having can operate at normal temperatures and pressures, remove
High-efficient, the advantages that operating cost is low, substantially without secondary pollution, operational management facilitates
Utility model content
The utility model is for hollow fiber membrane nitrogen low efficiency existing in the prior art, expensive, pollution environment
The disadvantages of, provide a kind of fuel-tank inert gas system based on corona discharge technology.Fuel tank upper gaseous phase space fuel oil is steamed
Gas and air mixture are passed into corona reactor, by the corona discharge of corona wire, produce a large amount of electronics, ion,
Oxygen plasma and ozone, act on fuel vapor, are decomposed and are aoxidized;Oxygen in reaction process consumed cabin air, reaction
Nitrogen-rich gas afterwards flows into fuel tank and carries out inerting, achievees the purpose that fuel tank is fire-proof and explosion-proof.
The utility model uses following technical scheme to solve above-mentioned technical problem:
A kind of fuel-tank inert gas system based on corona discharge technology comprising fuel tank, the first fire arrester, the first blower, is done
Dry device, flow sensor, surge flask, corona reactor, the second blower, cooler, separator, temperature sensor, the first electricity
Dynamic regulating valve, check-valves, the second fire arrester, oxygen concentration sensor, third blower, the second electric control valve, third motorized adjustment
Valve and automatic controller;
The fuel tank includes gas access and gas vent;The automatic controller includes that current input terminal and electric current export
End;
The gas vent of the fuel tank, the first fire arrester, the first blower entrance successively pipeline be connected;
First blower exports the inlet duct phase with the outlet of second electric control valve, drier respectively
Even;
The outlet of the drier, flow sensor, surge flask, corona reactor, the second blower, the hot side of cooler are logical
Road, separator, temperature sensor, the first electric control valve, check-valves, the second fire arrester, fuel tank gas access successively manage
Road is connected, wherein the surge flask is for reducing the flowing velocity for entering gas in it;The corona reactor is used for entrance
Fuel vapor in it carries out corona discharge degradation, so that hydrocarbon therein is decomposed and consumes oxygen, generates CO2With
H2O;
The entrance of the third blower connects external ram-air, outlet respectively with the entrance of second electric control valve,
The inlet duct of third electric control valve is connected;
The outlet of the third electric control valve is connected with the inlet duct of the cooler cold side channel;
The outlet of the cooler cold side channel is for draining into the gas in it outside machine;
The probe of the oxygen concentration sensor protrudes into the fuel tank, for measuring the oxygen concentration of gas in the fuel tank,
And pass it to the automatic controller;
The current input terminal of the automatic controller is sensed with the flow sensor, temperature sensor, oxygen concentration respectively
Device is electrically connected, the current output terminal of automatic controller respectively with first blower, corona reactor, the second blower, first
Electric control valve, third blower, the second electric control valve, third electric control valve are electrically connected.
The beneficial effects of the utility model are as follows:
Fuel tank upper gaseous phase space fuel vapor and air mixture are passed into corona reactor by the utility model, are led to
The corona discharge for crossing corona wire produces a large amount of electronics, ion, oxygen plasma and ozone, acts on fuel vapor, by it
It decomposes and aoxidizes;Oxygen in reaction process consumed cabin air, the nitrogen-rich gas after reaction flow into fuel tank and are rinsed inerting, system
Have many advantages, such as to operate at normal temperatures and pressures, removal efficiency is high, operating cost is low, without secondary pollution, operational management is convenient.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the fuel-tank inert gas system based on corona discharge technology of the utility model.
In figure, 1- fuel tank, the first fire arrester of 2-, the first blower of 3-, 4- drier, 5- flow sensor, 6- surge flask, 7-
Corona reactor, the second blower of 8-, 9- cooler, 10- separator, 11- temperature sensor, the first electric control valve of 12-,
13- check-valves, the second fire arrester of 14-, 15- oxygen concentration sensor, 16- third blower, the second electric control valve of 17-, 18- third
Electric control valve, 19- automatic controller.
Specific embodiment
The utility model is further described below with reference to embodiment.As described below is only that the utility model a part is real
Apply example, not all embodiments.Based on the utility model embodiment, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, the utility model discloses a kind of fuel-tank inert gas system based on corona discharge technology, includes oil
Case 1, the first fire arrester 2, the first blower 3, drier 4, flow sensor 5, surge flask 6, corona reactor 7, the second blower 8,
Cooler 9, separator 10, temperature sensor 11, the first electric control valve 12, check-valves 13, the second fire arrester 14, oxygen concentration
Sensor 15, third blower 16, the second electric control valve 17, third electric control valve 18 and automatic controller 19;
The fuel tank 1 includes gas access and gas vent;The automatic controller 16 includes current input terminal and electric current
Output end;
The gas vent of the fuel tank 1, the first fire arrester 2, the first blower 3 entrance successively pipeline be connected;
First blower 3 exports the inlet duct with the outlet of second electric control valve 17, drier 4 respectively
It is connected;
The outlet of the drier 4, flow sensor 5, surge flask 6, corona reactor 7, the second blower 8, cooler 9
Hot-side channel, separator 10, temperature sensor 11, the first electric control valve 12, check-valves 13, the second fire arrester 14, fuel tank 1
Gas access successively pipeline be connected, wherein the surge flask 6 for reducing enter its in gas flowing velocity;The electricity
Dizzy reactor 7 is used to carry out corona discharge degradation to the fuel vapor entered in it, so that hydrocarbon therein is decomposed
And oxygen is consumed, generate CO2And H2O;
The entrance of the third blower 16 connects external ram-air, and outlet enters with second electric control valve 17 respectively
Mouth, the inlet duct of third electric control valve 18 are connected;
The outlet of the third electric control valve 18 is connected with the inlet duct of 9 cold side channel of cooler;
The outlet of 9 cold side channel of cooler is for draining into the gas in it outside machine;
The probe of the oxygen concentration sensor 15 protrudes into the fuel tank 1, and the oxygen for measuring gas in the fuel tank 1 is dense
Degree, and pass it to the automatic controller 19;
The current input terminal of the automatic controller 19 respectively with the flow sensor 5, temperature sensor 11, oxygen concentration
Sensor 15 is electrically connected, the current output terminal of automatic controller 19 respectively with first blower 3, corona reactor 7, second
Blower 8, the first electric control valve 12, third blower 16, the second electric control valve 17, third electric control valve 18 are electrically connected.
A kind of fuel-tank inert gas system work process based on corona discharge technology of the utility model is as follows:
1) corona discharge decomposable process
The mixed gas of 1 upper gaseous phase space fuel vapor of fuel tank and air under the swabbing action of first blower 3,
After the first fire arrester 2, the first blower 3, mixed with 17 ram-air of the second electric control valve is flowed through, to adjust oxygen and combustion
Oil vapour is in suitable ratio;Since relative humidity is affected to corona discharge reaction, mixed gas is in the drier 5
It is dried;Dry gas reduces flowing velocity in surge flask 6, then in 7 intermediate fuel oil steam of corona reactor by corona
Electric discharge degradation, hydrocarbon are decomposed and consume oxygen, generate CO2And H2O;
The ram-air that the third blower 16 exports is divided into two strands, one plume after the second electric control valve 17, with
Gas mixing from fuel tank participates in catalysis reaction;Its secondary air is after third electric control valve 18, into the cooler 9
Cold side channel cools down gas after reaction, thereafter lets out outside machine;
2) inerting process
The nitrogen-rich gas that the corona reactor 7 exports flows through cooler 9 under the swabbing action of second blower 8
The air that is stamped is cooling;And then condensed water is discharged in separator 10;Followed by temperature sensor 11, the first motorized adjustment
After valve 12, check-valves 13, the second fire arrester 14, flows into the fuel tank 1 and be rinsed inerting;
3) data collection and control process
The oxygen concentration sensor 15 detects the 1 upper gaseous phase space oxygen concentration of fuel tank by feeler lever and transmits signal
To the automatic controller 19;When oxygen concentration is greater than given value, described in the output of the automatic controller 19 control signal communication
First blower 3, corona reactor 7, the second blower 8, the first electric control valve 12, third blower 16, the second electric control valve 17,
Third electric control valve 18, system starts;When oxygen concentration is less than given value, system stalls;
The gas flow for participating in reaction is measured by the flow sensor 5, to adjust 7 voltage of corona reactor,
So that reaction sufficiently carries out;
The temperature sensor 11 measures dry nitrogen-rich gas temperature, and transfers signals to the automatic controller
19;When temperature is greater than given value, the first electric control valve 12 described in the output of the automatic controller 19 control signal-off, with
It prevents high-temperature gas from entering fuel tank, guarantees fuel tank safety.
Those skilled in the art can understand that unless otherwise defined, all terms used herein (including skill
Art term and scientific term) there is meaning identical with the general understanding of those of ordinary skill in the utility model fields
Justice.It should also be understood that those terms such as defined in the general dictionary should be understood that with upper with the prior art
The consistent meaning of meaning hereinafter, and unless defined as here, will not with idealization or meaning too formal come
It explains.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
The utility model processed, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done,
It should be included within the scope of protection of this utility model.
Claims (1)
1. a kind of fuel-tank inert gas system based on corona discharge technology, which is characterized in that include fuel tank (1), the first fire arrester
(2), the first blower (3), drier (4), flow sensor (5), surge flask (6), corona reactor (7), the second blower (8),
Cooler (9), separator (10), temperature sensor (11), the first electric control valve (12), check-valves (13), the second back-fire relief
Device (14), oxygen concentration sensor (15), third blower (16), the second electric control valve (17), third electric control valve (18) and
Automatic controller (19);
The fuel tank (1) includes gas access and gas vent;The automatic controller (19) includes current input terminal and electric current
Output end;
The gas vent of the fuel tank (1), the first fire arrester (2), the first blower (3) entrance successively pipeline is connected;
The outlet of first blower (3) inlet tube with the outlet of second electric control valve (17), drier (4) respectively
Road is connected;
It is the outlet of the drier (4), flow sensor (5), surge flask (6), corona reactor (7), the second blower (8), cold
But the hot-side channel of device (9), separator (10), temperature sensor (11), the first electric control valve (12), check-valves (13),
Second fire arrester (14), fuel tank (1) gas access successively pipeline be connected, wherein the surge flask (6) for reducing enter its
The flowing velocity of interior gas;The corona reactor (7) is used to carry out corona discharge degradation to the fuel vapor entered in it, makes
It obtains hydrocarbon therein to be decomposed and consume oxygen, generates CO2And H2O;
The entrance of the third blower (16) connects external ram-air, and outlet enters with the second electric control valve (17) respectively
Mouth, the inlet duct of third electric control valve (18) are connected;
The outlet of the third electric control valve (18) is connected with the inlet duct of the cooler (9) cold side channel;
The outlet of cooler (9) cold side channel is for draining into the gas in it outside machine;
The probe of the oxygen concentration sensor (15) protrudes into the fuel tank (1), for measuring the oxygen of the fuel tank (1) interior gas
Concentration, and pass it to the automatic controller (19);
The current input terminal of the automatic controller (19) is dense with the flow sensor (5), temperature sensor (11), oxygen respectively
Degree sensor (15) is electrically connected, and the current output terminal of automatic controller (19) is reacted with first blower (3), corona respectively
Device (7), the second blower (8), the first electric control valve (12), third blower (16), the second electric control valve (17), third are electronic
Regulating valve (18) is electrically connected.
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CN201820987703.1U CN208544429U (en) | 2018-06-25 | 2018-06-25 | A kind of fuel-tank inert gas system based on corona discharge technology |
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CN201820987703.1U CN208544429U (en) | 2018-06-25 | 2018-06-25 | A kind of fuel-tank inert gas system based on corona discharge technology |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108639360A (en) * | 2018-06-25 | 2018-10-12 | 南京航空航天大学 | A kind of fuel-tank inert gas system based on corona discharge technology |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108639360A (en) * | 2018-06-25 | 2018-10-12 | 南京航空航天大学 | A kind of fuel-tank inert gas system based on corona discharge technology |
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