CN104843188B - A kind of aircraft fuel-tank inert gas device based on catalytic oxidation technologies - Google Patents
A kind of aircraft fuel-tank inert gas device based on catalytic oxidation technologies Download PDFInfo
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- CN104843188B CN104843188B CN201510192693.3A CN201510192693A CN104843188B CN 104843188 B CN104843188 B CN 104843188B CN 201510192693 A CN201510192693 A CN 201510192693A CN 104843188 B CN104843188 B CN 104843188B
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- 239000002828 fuel tank Substances 0.000 title claims abstract description 71
- 238000005516 engineering process Methods 0.000 title claims abstract description 28
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 24
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 23
- 230000003647 oxidation Effects 0.000 title claims abstract description 23
- 239000011261 inert gas Substances 0.000 title claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 81
- 239000003921 oil Substances 0.000 claims abstract description 32
- 229910052756 noble gas Inorganic materials 0.000 claims abstract description 28
- 239000000295 fuel oil Substances 0.000 claims abstract description 22
- 238000005406 washing Methods 0.000 claims description 18
- 239000000446 fuel Substances 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 5
- 239000001569 carbon dioxide Substances 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000007792 gaseous phase Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 13
- 239000012071 phase Substances 0.000 description 9
- 238000006555 catalytic reaction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
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- 230000007423 decrease Effects 0.000 description 2
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- 230000001629 suppression Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920001247 Reticulated foam Polymers 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- RJCQBQGAPKAMLL-UHFFFAOYSA-N bromotrifluoromethane Chemical compound FC(F)(F)Br RJCQBQGAPKAMLL-UHFFFAOYSA-N 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 229910001873 dinitrogen Inorganic materials 0.000 description 1
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- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 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
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
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- Hydrogen, Water And Hydrids (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
The invention discloses a kind of aircraft fuel-tank inert gas device based on catalytic oxidation technologies, the device introduces gases at high pressure by engine or environmental control system, aspirate the mixture of fuel tank upper gaseous phase space fuel-steam and other gases respectively by two gas ejectors, or in oil storage tank by electric oil heater heat after the fuel-steam that produces, the mixed combustible gas flowed out from gas ejector passes through regenerator, cooler and electric gas heater are adjusted produces oxidation reaction to after suitable temperature in catalytic reactor, fuel-steam is converted into carbon dioxide and vapor, the noble gas of water vapor removing is admitted in fuel tank upper gaseous phase space or fuel tank bottom fuel oil, reach the purpose of inerting.Using technical solution of the present invention, the flowing of gas and mixing are completed by gas ejector, it is not necessary to the moving component such as blower fan, while can meet underriding declines the increased demand of tonifying Qi, with simple in construction, the advantages of reliable.
Description
Technical field
The invention belongs to fire-proof and explosion-proof technical field, and in particular to a kind of aircraft fuel tank based on catalytic oxidation technologies
Inerting unit.
Background technology
The safety problem of present generation aircraft is all the time by the extensive concern of society, and fuel system burning, blast are to draw
Play the one of the main reasons of aviation accident.There is data to suggest that, in Vietnam War, USAF is due to by ground fire attack
And have lost thousands of airplanes.In these losses, loss ratio is just up to 50% caused by being caught fire due to fuel oil.NATO is right
Found in 1141 aircraft accident investigation relevant with catching fire, main cause is exactly to be drawn by flight or crash after-burning fuel tank explosion
Rise.Certainly, during oiling and maintenance, it is also possible to fuel tank can be caused to burn and explode.
As can be seen here, no matter for military secret or civil aircraft, it is necessary to prevent fuel tank from firing using effectively measure.Also
It is to say, the fireproof and explosion suppression ability of fuel tanker is not only related to the survival ability and vulnerability of aircraft, while being also related to aircraft
Utilization rate, cost and the safety of passenger.Divide by operation principle, aircraft fuel tank fireproof and explosion suppression technology can be divided into passive type and
Active two major class.
So-called passive type, refer to after fire occurs, and comes by packing material special in fuel tank to burning and flame
The technical measures suppressed are propagated, the purpose is to reduce the influence caused by fire occurs.Passive type is explosion-proof, and its advantage is flat
When need not safeguard whenever can all protect fuel tank, fault-free occurs etc.；Major defect is the datonation-inhibition of filling in fuel tank
Material reduces the useable fuel storage capacity (about reduce 4% or so) of aircraft, add aircraft weight (increase about 0.06~
0.08 lb/gal), larger is influenceed on aeroplane performance.Such as conventional fuel tank packing material has reticulated foam and net metal silk
Two classes.
So-called positive fire protection explosion-suppressing method, i.e. fuel tank inerting technology, because it active control and can keep fuel tank top empty
Between oxygen concentration and reach fire prevention, explosion-proof purpose, it focuses on " preventing ", therefore is called active.It can be according to inerting
Gaseous species, source difference and classify.Mainly include：Liquid nitrogen/gas nitrogen inerting technology, Halon1301 inertings technology, fuel oil
Catalysis technique and airborne nitrogen inerting technology processed etc. are several.With the development of separation membrane technology, rich nitrogen is produced using hollow-fibre membrane
The airborne nitrogen inerting technology processed of gas（OBIGGS, On-Board Inert Gas Generation system）It is current
Mainstream technology, not only military secret and civil aircraft are widely used abroad, transporter, the fighter plane independently newly developed in China in recent years
And also turn into necessary supporting airborne device on branch line and trunkliner.
Although the OBIGGS based on UF membrane is current main flow inerting technology, many problems are still had, for example
Separation membrane efficiency is low to cause that aircraft panelty is big, seperation film entrance demand pressure height causes not using on many types
（Such as helicopter）, tiny film silk and infiltration aperture gradually block and source of the gas in ozone cause that film properties decay is serious, N2 fillings
Cause fuel-steam to leak during fuel tank and pollute environment etc..
The content of the invention
It is an object of the invention to overcome that film separates OBIGGS efficiency is low, expensive and narrow application range etc. lacks
Point, based on catalytic oxidation technologies, there is provided a kind of aircraft fuel-tank inert gas device based on catalytic oxidation technologies.
To realize above-mentioned technical purpose and the technique effect, the present invention is achieved through the following technical solutions：
A kind of aircraft fuel-tank inert gas device based on catalytic oxidation technologies, including voltage-stablizer, the voltage-stablizer outlet
It is connected respectively with inflow entrance of first gas injector and the second cut-off valve inlet by pipeline, the second cut-off valve outlet
It is connected by inflow entrance of pipeline and second gas injector, the first gas injector mixing flow export and described second
Gas ejector mixing flow export is connected by pipeline with regenerator cold side channel entrance, and the regenerator cold side channel is exported to
The second cooler hot-side channel, electric gas heater, the first back-fire relief have been sequentially connected with by pipeline between second spark arrester entrance
Device and catalytic reactor, second spark arrester outlet by pipeline respectively with the regenerator hot-side channel entrance and first section
Only valve inlet is connected, and the first cut-off valve outlet is warm with regenerator hot-side channel outlet and the first cooler respectively by pipeline
Wing passage entrance is connected, and the first cooler hot-side channel outlet is connected by pipeline with dehydrater entrance, fuel tank gas
It is exported between the secondary inflow entrance of first gas injector and first check-valve, oil storage tank steam (vapor) outlet is connected with by pipeline
Second check-valve is connected with by pipeline between to the secondary inflow entrance of second gas injector, the fuel tank connected entrance is extremely
The 3rd check-valves is connected with by pipeline between oil storage tank connected entrance, the oil storage pot bottom is placed with electric oil heater, institute
Fuel oil in fuel tank loop head is stated to export and second cooler with the first cooler cold side channel respectively by pipeline
Cold side channel outlet connection, the first cooler cold side channel entrance is connected by pipeline with triple valve first outlet, described
Second cooler cold side channel entrance is connected by pipeline with the triple valve second outlet, the triple valve inlet to the combustion
Fuel circulating pump is connected with by pipeline between oil tank fuel loop exit, electric oil heater and electric gas heater pass through electricity
Cable is connected with power supply.
Further, the dehydrater outlet is connected by pipeline with the fuel tank noble gas entrance.
It is preferred that, the dehydrater outlet is connected by pipeline with washing injector gas access, the fuel tank bottom
Fuel outlet by pipeline between the washing injector fuel filler to oil pump is connected with, and the washing injector outlet is in institute
State under the minimum level of fuel tank bottom.
Further, the dehydrater outlet is connected by pipeline with gas distributor entrance, and the gas distributor goes out
Mouth is under the minimum level of the fuel tank bottom.Further, the dehydrater be absorption type, absorption, cooled and wait from
The equipment that son etc. removes vapor in gas.
It is preferred that, the power supply is direct current and AC power, and voltage and current electrodeless can be adjusted.
Further, the voltage-stablizer entrance is connected with aircraft engine bleed ports by pipeline.
Further, it is characterised in that the voltage-stablizer entrance is connected with aircraft ring control bleed ports by pipeline.
Beneficial effects of the present invention:
Using technical solution of the present invention, fuel-steam is converted into come inerting oil by carbon dioxide by catalytic combustion technology
Case, therefore low is required to source of the gas degree of purity, without high-pressure bleed air, without being preheated to membrane separation device, therefore toggle speed
Hurry up, the inerting time it is short, apparatus structure is simple, reliability is high.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the aircraft fuel-tank inert gas device based on catalytic oxidation technologies；
Fig. 2 is the catalysis oxidation inerting unit schematic flow sheet in embodiment 2 using injector washing fuel oil；
Fig. 3 is the catalysis oxidation inerting unit schematic flow sheet in embodiment 3 using distributor washing fuel oil；
Fig. 4 rinses catalysis oxidation inerting unit schematic flow sheet to be pressurized in embodiment 4 without tonifying Qi；
Fig. 5 is the dimensional structure diagram of gas distributor bottom；
Fig. 6 is the dimensional structure diagram on gas distributor top.
Label declaration in figure：
1st, voltage-stablizer, 2, first gas injector, 3, second gas injector, 4, regenerator, the 5, first cooler, 6,
Two coolers, 7, dehydrater, 8, electric gas heater, the 9, first spark arrester, 10, catalytic reactor, the 11, second spark arrester, 12,
Fuel tank, 13, oil storage tank, 14, electric oil heater, 15, fuel circulating pump, 16, power supply, 17, oil pump, 18, washing injector,
19th, gas distributor, the 101, first stop valve, the 102, second stop valve, 103, triple valve, 201, first check-valve, 202,
Two check-valves, the 203, the 3rd check-valves, 1001, noble gas inlet tube, 1002, noble gas branch pipe, 1003, noble gas supervisor, 1004, noble gas
Aperture.
Embodiment
Below in conjunction with drawings and Examples, to describe the present invention in detail.
1）Embodiment 1：
Fig. 1 is the aircraft fuel-tank inert gas device of the invention based on catalytic oxidation technologies, and the outlet of voltage-stablizer 1 passes through pipeline
It is connected respectively with 2 inflow entrances of first gas injector and the entrance of the second stop valve 102, the outlet of the second stop valve 102 passes through
3 inflow entrances of pipeline and second gas injector are connected, the mixing flow export of first gas injector 2 and second gas injector
3 mixing flow exports are connected by pipeline with the cold side channel entrance of regenerator 4, and the cold side channel of regenerator 4 is exported to the second spark arrester
The hot-side channel of the second cooler 6, electric gas heater 8, the first spark arrester 9 have been sequentially connected with by pipeline between 11 entrances and urged
Change reactor 10, the outlet of the second spark arrester 11 is entered with the hot-side channel entrance of regenerator 4 and the first stop valve 101 respectively by pipeline
Mouth connection, the first stop valve 101 outlet is led to the outlet of the hot-side channel of regenerator 4 and the hot side of the first cooler 5 respectively by pipeline
Road entrance connection, the hot-side channel of the first cooler 5 outlet is connected by pipeline with the entrance of dehydrater 7, the gas vent of fuel tank 12
To first check-valve 201 is connected with by pipeline between 2 two inflow entrances of first gas injector, the steam (vapor) outlet of oil storage tank 13 is extremely
Second check-valve 202, the connected entrance of fuel tank 12 to oil storage tank are connected with by pipeline between 3 two inflow entrances of second gas injector
The 3rd check-valves 203 is connected with by pipeline between 13 connected entrances, the bottom of oil storage tank 13 is placed with electric oil heater 14, fuel tank
12 fuel oil loop heads are exported with the outlet of the cold side channel of the first cooler 5 and the cold side channel of the second cooler 6 respectively by pipeline
Connection, the cold side channel entrance of the first cooler 5 is connected by pipeline with the first outlet of triple valve 103, and the cold side of the second cooler 6 is led to
Road entrance is connected by pipeline with the second outlet of triple valve 103, and the entrance of triple valve 103 leads to between the fuel oil loop exit of fuel tank 12
Piping is connected with fuel circulating pump 15, and electric oil heater 14 and electric gas heater 8 are connected with power supply 16 by cable, removed
The outlet of hydrophone 7 is connected by pipeline with the noble gas entrance of fuel tank 12.The present embodiment is used under the full flight profile, mission profile of aircraft fuel tank
Inerting is rinsed, it includes two mode of operations, detailed process is as follows：
1) one-ground taxi of pattern, climb and cruising phase：The second stop valve 102 is closed, by voltage-stablizer 1 and engine
Bleed ports are connected, and bleed is flowed into first gas 2 inflow entrances of injector, are taken out from 2 two inflow entrances of first gas injector
Fuel-steam and other gases from the top of fuel tank 12 are inhaled, final outflow first gas injector 2 mixes the gas of flow export
Mixed by fuel-steam, fuel tank upper gas and bleed, referred to as combustion mixture；When engine bleed temperature is high, make
When being higher than the temperature of the high humility noble gas left from the outlet of catalytic reactor 10 into combustion mixture temperature, the first stop valve is opened
101, the hot-side channel of regenerator 4 is bypassed, when engine bleed temperature is low, then the first stop valve 101 is closed, makes high humility lazy
Gas cools in the hot-side channel of regenerator 4, reclaims heat；Combustion mixture sequentially flows through the cold side channel of regenerator 4, the second cooler
6 hot-side channels and electric gas heater 8, are exported by opening the first stop valve 101, the aperture of regulating three-way valve 103, power supply 16
Voltage and current, the temperature that combustion mixture enters the entrance of catalytic reactor 10 is reached and is imposed a condition, and in catalytic reaction
Be oxidized in device 10, the hydrocarbon in fuel-steam is converted into carbon dioxide and water, and with other unreacted gases
Form high humility noble gas；High humility noble gas is cooled down in the hot-side channel of the first cooler 5 by the fuel oil from fuel tank 12, most of water
Steam is changed into aqueous water, and is separated, and is low humidity noble gas from the hot-side channel of the first cooler 5 outlet outflow；Low humidity is lazy
Gas flows into the noble gas entrance of fuel tank 12 after contained most of vapor is removed by adsorbent using the dehydrater 7 of adsorption method,
Rinse the upper gaseous phase space of fuel tank 12 and reach inerting purpose；Pressure inside the stage, fuel tank 12 is higher than environmental pressure, from oil
The noble gas entrance of case 12 enter noble gas mixed with gas-phase space top after, the unnecessary exhaust outlet intrinsic automatically by fuel tank 12 or
Air bleeding valve flows out to external environment, so as to maintain the inside and outside differential pressure of fuel tank 12 to balance.
2) pattern two-underriding decline stage：When diving decline, ambient pressure environment rise is, it is necessary to which the tonifying Qi of fuel tank 12 comes
Gas-phase space pressure is maintained, but if the tonifying Qi comes from external environment, then can destroy inerting effect, causes fuel tank 12 can
Combustion, therefore the second stop valve 102 is opened, engine bleed is entered second gas injector 3 by voltage-stablizer 1 and once flow into
Mouthful；Oil storage tank 13 is connected with fuel tank 12, is maintained to place fuel heater 14 in the liquid level of oil storage tank 13, oil storage tank 13, is passed through control
The voltage and current of power supply 16, makes fuel heater 14 fuel oil is seethed with excitement after generating heat, and produces fuel-steam and flows into the after being sucked
Two inflow entrances of gas ejector 3 two times, the gas and first gas injector of flow export outflow are mixed from second gas injector 3
After the gas mixing of 2 mixing flow export outflows, the cold side channel of regenerator 4 is flowed into, other temperature adjustments, reaction aoxidize and rinsed inerting
Journey is consistent with pattern one.Due to there are two gas ejectors, thus can produce more noble gases be used for maintain dive lower depression of order
The more gases of Duan Suoxu ensure that outside ambient air does not enter fuel tank 12.
2）Embodiment 2：
Fig. 2 is the catalysis oxidation inerting unit schematic flow sheet in the present embodiment using injector washing fuel oil, this implementation
The middle entrance of voltage-stablizer 1 is connected with ring control bleed ports, and the outlet of dehydrater 7 is connected by pipeline with washing injector 18 gas access,
The bottom fuel outlet of fuel tank 12 by pipeline between the washing fuel filler of injector 18 to oil pump 17 is connected with, and the washing is sprayed
Device 18 is exported under the bottom minimum level of fuel tank 12.
The present embodiment and the course of work difference of embodiment 1 are：The noble gas left from dehydrater 7 does not enter back into fuel tank 12
Top noble gas entrance, but washing injector 18 gas access is flowed into, the fuel oil being pumped into fuel tank 17 is in washing injector 18
Mixing, produces carbon dioxide in violent mass transport process, noble gas and nitrogen gas dissolved into fuel oil, by fuel oil in the process
Replacement of oxygen come out, the gas formation bubble flowed out from washing injector 18, and from gradually floating, should during further put
Oxygen in other fuel oils is changed, the noble gas not being replaced eventually enters into gas-phase space, after the gas mixing of gas-phase space, reduction oil
The combustibility of case gas-phase space.
3) embodiment 3：
Fig. 3 is the catalysis oxidation inerting unit schematic flow sheet in the present embodiment using distributor washing fuel oil, this implementation
In example, the outlet of dehydrater 7 is connected by pipeline with the entrance of gas distributor 19, and gas distributor 19 is exported in the bottom of fuel tank 12 most
Under low liquid level.
The present embodiment and the difference of embodiment 2 are, instead of the oil pump 12 in embodiment 2 with gas distributor 19 and wash
Injector 18 is washed, the entrance of noble gas inflow gas distributor 19 flows into noble gas supervisor 1002, Ran Houliu by noble gas inlet tube 1001
Enter noble gas branch pipe 1003, a large amount of noble gas apertures 1004 are opened up on noble gas branch pipe 1003, ultimately form noble gas bubble and enter fuel tank
In 12 intermediate fuel oils, with the rising of bubble, carbon dioxide and nitrogen in noble gas carry out mass transfer with the oxygen in fuel oil and exchanged, and subtract
Oxygen content in few fuel oil, bubble is finally broken in gas-liquid interface, and gas therein enters the gas-phase space of fuel tank 12 and original gas
Body is mixed, inerting gas-phase space.Compared with Example 2, moving component is not present in washing process, it is simple in construction.
4) embodiment 4：
Fig. 4 is rinses catalysis oxidation inerting unit schematic flow sheet in the present embodiment without tonifying Qi supercharging, with the phase of embodiment 1
Than in the present embodiment, aircraft underriding fall off rate is very low, or is only rinsed inerting under the state of ground, without a large amount of benefits
Gas, thus eliminate the second gas injector 3 in embodiment 1, the second stop valve 102, second check-valve 202, oil storage tank 13,
Electric oil heater 14, the 3rd check-valves 203 and corresponding pipeline.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (8)
1. a kind of aircraft fuel-tank inert gas device based on catalytic oxidation technologies, it is characterised in that including voltage-stablizer（1）, institute
State voltage-stablizer（1）Outlet by pipeline respectively with first gas injector（2）Inflow entrance and the second stop valve（102）Entrance
Connection, second stop valve（102）Outlet passes through pipeline and second gas injector（3）The connection of inflow entrance, described the
One gas ejector（2）Mix flow export and the second gas injector（3）Mixing flow export passes through pipeline and regenerator（4）
Cold side channel entrance is connected, the regenerator（4）Cold side channel is exported to the second spark arrester（11）It is suitable by pipeline between entrance
It is secondary to be connected with the second cooler（6）Hot-side channel, electric gas heater（8）, the first spark arrester（9）And catalytic reactor（10）,
Second spark arrester（11）Outlet by pipeline respectively with the regenerator（4）Hot-side channel entrance and the first stop valve
（101）Entrance is connected, the first stop valve（101）Outlet by pipeline respectively with the regenerator（4）Hot-side channel is exported and the
One cooler（5）Hot-side channel entrance is connected, first cooler（5）Hot-side channel outlet passes through pipeline and dehydrater（7）
Entrance is connected, fuel tank（12）Gas vent is to the first gas injector（2）Connected between secondary inflow entrance by pipeline
There is first check-valve（201）, oil storage tank（13）Steam (vapor) outlet is to the second gas injector（3）Pass through between secondary inflow entrance
Pipeline is connected with second check-valve（202）, the fuel tank（12）Connected entrance is to oil storage tank（13）Pass through pipeline between connected entrance
It is connected with the 3rd check-valves（203）, the oil storage tank（13）Bottom is placed with electric oil heater（14）, the fuel tank（12）
Fuel oil loop head by pipeline respectively with first cooler（5）Cold side channel is exported and second cooler（6）It is cold
Wing passage outlet connection, first cooler（5）Cold side channel entrance passes through pipeline and triple valve（103）First outlet connects
Connect, second cooler（6）Cold side channel entrance passes through pipeline and the triple valve（103）Second outlet is connected, and described three
Port valve（103）Entrance is to the fuel tank（12）Fuel circulating pump is connected with by pipeline between fuel oil loop exit（15）, combustion
Oily electric heater（14）And electric gas heater（8）Pass through cable and power supply（16）Connection.
2. the aircraft fuel-tank inert gas device according to claim 1 based on catalytic oxidation technologies, it is characterised in that institute
State dehydrater（7）Outlet passes through pipeline and the fuel tank（12）Noble gas entrance is connected.
3. the aircraft fuel-tank inert gas device according to claim 1 based on catalytic oxidation technologies, it is characterised in that institute
State dehydrater（7）Outlet passes through pipeline and washing injector（18）Gas access is connected, the fuel tank（12）Bottom fuel oil goes out
Mouthful to the washing injector（18）Oil pump is connected with by pipeline between fuel filler（17）, the washing injector（18）Go out
Mouth is in the fuel tank（12）Under the minimum level of bottom.
4. the aircraft fuel-tank inert gas device according to claim 1 based on catalytic oxidation technologies, it is characterised in that institute
State dehydrater（7）Outlet passes through pipeline and gas distributor（19）Entrance is connected, the gas distributor（19）Outlet is described
Fuel tank（12）Under the minimum level of bottom.
5. the aircraft fuel-tank inert gas device according to claim 1 based on catalytic oxidation technologies, it is characterised in that institute
State dehydrater（7）For absorption type, absorption, cooled or plasma formula.
6. the aircraft fuel-tank inert gas device according to claim 1 based on catalytic oxidation technologies, it is characterised in that institute
State power supply（16）For direct current and AC power, voltage and current electrodeless can be adjusted.
7. the aircraft fuel-tank inert gas device according to claim 1 based on catalytic oxidation technologies, it is characterised in that institute
State voltage-stablizer（1）Entrance is connected with aircraft engine bleed ports by pipeline.
8. the aircraft fuel-tank inert gas device according to claim 1 based on catalytic oxidation technologies, it is characterised in that institute
State voltage-stablizer（1）Entrance is connected with aircraft ring control bleed ports by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192693.3A CN104843188B (en) | 2015-04-22 | 2015-04-22 | A kind of aircraft fuel-tank inert gas device based on catalytic oxidation technologies |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192693.3A CN104843188B (en) | 2015-04-22 | 2015-04-22 | A kind of aircraft fuel-tank inert gas device based on catalytic oxidation technologies |
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| CN104843188B true CN104843188B (en) | 2017-08-01 |
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| CN106762270A (en) * | 2016-12-27 | 2017-05-31 | 南京航空航天大学 | A kind of air separates inerting automotive oil tank device and its method of work |
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| GB2374007A (en) * | 2001-04-04 | 2002-10-09 | Kidde Plc | Fire / explosion protection system and method, using inert gas produced in low temperature catalytic oxidation of organic fuel |
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| US8602362B2 (en) * | 2010-10-08 | 2013-12-10 | Simmonds Precision Products, Inc. | System and method for scavenging ullage from center wing tanks in an airplane |
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