CN108557090A - A kind of airborne oxygen consumption type inerting system using engine tail gas heat quantity - Google Patents
A kind of airborne oxygen consumption type inerting system using engine tail gas heat quantity Download PDFInfo
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- CN108557090A CN108557090A CN201810246000.8A CN201810246000A CN108557090A CN 108557090 A CN108557090 A CN 108557090A CN 201810246000 A CN201810246000 A CN 201810246000A CN 108557090 A CN108557090 A CN 108557090A
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- 239000007789 gas Substances 0.000 title claims abstract description 86
- 230000036284 oxygen consumption Effects 0.000 title claims abstract description 13
- 239000002828 fuel tank Substances 0.000 claims abstract description 59
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 46
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 46
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 45
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 90
- 239000001301 oxygen Substances 0.000 claims description 90
- 229910052760 oxygen Inorganic materials 0.000 claims description 90
- 230000001105 regulatory effect Effects 0.000 claims description 38
- 239000000523 sample Substances 0.000 claims description 7
- -1 carbon Hydrogen compound Chemical class 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 229910001868 water Inorganic materials 0.000 abstract description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000446 fuel Substances 0.000 abstract description 6
- 239000012495 reaction gas Substances 0.000 abstract description 5
- 239000001569 carbon dioxide Substances 0.000 abstract description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 4
- 238000006555 catalytic reaction Methods 0.000 abstract description 4
- 239000003054 catalyst Substances 0.000 abstract description 3
- 238000007084 catalytic combustion reaction Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000008246 gaseous mixture Substances 0.000 abstract description 2
- 239000007792 gaseous phase Substances 0.000 abstract description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- 238000000034 method Methods 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 229920004449 Halon® Polymers 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
- B64D37/32—Safety measures not otherwise provided for, e.g. preventing explosive conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses a kind of airborne oxygen consumption type inerting systems using engine tail gas heat quantity, fuel tank upper gaseous phase space fuel vapor and air mixture are subjected to flameless catalytic combustion after excess temperature is adjusted in catalyst oxidation reactor, hydrocarbon in fuel-steam is oxidized to carbon dioxide and water, after subcooler and separator, obtained low water content inerting gaseous mixture returns to fuel tank top and is rinsed inerting, achievees the purpose that fire-proof and explosion-proof.In the present invention, reaction gas is heated using the heat of motor exhaust, reaches generation catalytic reaction condition.When the inerting of ground, independent electric heater unit is used.Have many advantages, such as that capacity usage ratio is high, optimize inerting system performance, the inerting time is short, non-environmental-pollution.
Description
Technical field
The present invention relates to belong to air line technical field more particularly to a kind of airborne consumption using engine tail gas heat quantity
Oxygen type inerting system.
Background technology
The safety problem of modern aircraft is all the time by the extensive concern of society, and fuel system burning, explosion are to draw
One of the main reason for playing aviation accident.There is data to suggest that in Vietnam War, United States Air Force is damaged by ground fire attack
Thousands of airplanes are lost, wherein since fuel tanker explosion on fire causes the ratio of fatal crass to be as high as wave in 50%, while 1996
After 747 aircraft TWA800 of sound takes off, the combustible vapor of central wing fuel tank, which is ignited, during climbing causes to explode, Quan Jiren
Member dies.It can be seen that 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.
Common aircraft fuel tank inerting technology mainly has liquid nitrogen inerting technology, 1301 inerting technologies of Halon, molecular sieve
Technology, membrane separation technique etc..Wherein hollow-fibre membrane produces the airborne nitrogen inerting technology processed of nitrogen-rich gas（On-Board Inert
Gas Generator System, OBIGGS）It is that fuel tanker most economical, practical at present fires suppression technology.OBIGGS handles
Bleed from engine or environmental control system is adjusted through excess temperature, pressure is adjusted, removes the pollutants such as ozone, moisture, impurity
Afterwards, it is passed through in the air-separating plant being made of hollow-fibre membrane and is separated into oxygen rich gas and nitrogen-rich gas, oxygen rich gas discharge
Outside machine, nitrogen-rich gas is then filled with fuel tank by different flow rate modes and is washed or rinsed.
But OBIGGS technologies are there are still many problems, such as detach that membrane efficiency is low to lead to that aircraft panelty is big, separation
Film entrance demand pressure height causes not using on many types（Such as helicopter）, tiny film wire and infiltration aperture gradually block up
Ozone causes to cause when film properties decaying serious, nitrogen-rich gas filling fuel tank fuel-steam to leak pollution environment in plug and air source
Deng.
In recent years, some companies and research institution also are carrying out consuming fuel tank gas phase using catalytic combustion method both at home and abroad
Method of the oxygen and combustible vapor in space to reduce the flammable risk of fuel tank, referred to as " green inerting technology "（Green On-
Board Inert Gas Generation System, GOBIGGS）.This novel inerting technology has several considerable advantages：
Substantially without preheating, startup speed is fast, and oxygen is consumed in the reactor in addition, and inerting is efficient, the time is short；It does not discharge
Fuel-steam, it is environmentally protective.But need reaction gas being heated to 200 DEG C or more, can just catalyst combustion reaction be promoted to send out
It is raw.And aero-engine exhaust temperature generally can be more than 500 DEG C, so the present invention is heated using the heat of motor exhaust
Reaction gas improves capacity usage ratio while mitigating inerting unit weight；In addition to this, a set of electrical heating is also set up
System, for being used when the inerting of ground.
Invention content
The technical problem to be solved by the present invention is to for defect involved in background technology, provide a kind of utilize and send out
The airborne oxygen consumption type inerting system of motivation tail gas heat quantity.
The present invention uses following technical scheme to solve above-mentioned technical problem：
A kind of airborne oxygen consumption type inerting system using engine tail gas heat quantity, including fuel tank, the first spark arrester, the first wind turbine,
Preheater, the first electric control valve, electric heater, the second electric control valve, First Heat Exchanger, the first temperature sensor, first
Oxygen concentration sensor, the first hydrocarbon sensor, reactor, the second hydrocarbon sensor, the second oxygen concentration sensing
Device, cooler, separator, second temperature sensor, third electric control valve, the first one way stop peturn valve, the second spark arrester,
Three oxygen concentration sensors, the second wind turbine, electric three-way regulating valves, the second one way stop peturn valve, the second heat exchanger, power cycle dress
It sets, the 4th electric control valve and automatic controller；
The fuel tank includes gas vent and gas access；The electric three-way regulating valves include an entrance and two outlets；
The automatic controller includes a current input terminal and two current output terminals；
The gas vent of the fuel tank, the first spark arrester, the first wind turbine entrance be sequentially connected by pipeline；
Entrance of the outlet of first wind turbine respectively with the outlet of second one way stop peturn valve, preheater cold side channel passes through
Pipeline connects；
The outlet of the preheater cold side channel enters with the entrance of first electric control valve, the second electric control valve respectively
Mouth is connected by pipeline；
The outlet of first electric control valve is connected by pipeline with the entrance of the electric heater；
The second motorized adjustment valve outlet is connected by pipeline with the entrance of the First Heat Exchanger cold side channel；
The entrance of first temperature sensor respectively with the outlet of the electric heater, the outlet of First Heat Exchanger cold side channel
It is connected by pipeline；
The outlet of first temperature sensor, the first oxygen concentration sensor, the first hydrocarbon sensor, reactor,
Two hydrocarbon sensors, the second oxygen concentration sensor, the hot-side channel of preheater, the hot-side channel of cooler, water separation
Device, second temperature sensor, third electric control valve, the first one way stop peturn valve, the second spark arrester, fuel tank gas access pass through
Pipeline is sequentially connected；
The probe of the third oxygen concentration sensor stretches into the fuel tank, the concentration for incuding oxygen in the fuel tank, and
Pass it to the automatic controller；
The entrance of second wind turbine connects ram-air, and outlet is connected by pipeline with the entrance of the electric three-way regulating valves；
The one outlet of the electric three-way regulating valves is connected by pipeline with the entrance of second one way stop peturn valve, another
Outlet is connected by pipeline with the entrance of the cooler cold side channel；
The outlet of the cooler cold side channel is connected to by pipeline at exhaust gas discharge；
The entrance of 4th electric control valve connects external heat conduction medium, and the outlet of the 4th electric control valve is respectively with described second
The outlet of heat exchanger cold side channel, the entrance of power circulating device are connected by pipeline；
The outlet of the power circulating device, the entrance clearance pipe of First Heat Exchanger hot-side channel, the second heat exchanger cold side channel
Road is sequentially connected；
The entrance of the second exchanger heat wing passage connects motor exhaust, and the outlet of the second exchanger heat wing passage passes through pipeline
It is connected at exhaust gas discharge；
The current input terminal of the automatic controller respectively with the second temperature sensor, third oxygen concentration sensor, first
Temperature sensor, the first oxygen concentration sensor, the first hydrocarbon sensor, the second hydrocarbon sensor, the second oxygen
Concentration sensor is electrically connected；
One current output terminal of the automatic controller respectively with first wind turbine, the first electric control valve, electric heater,
Second electric control valve, power circulating device, the 4th electric control valve are electrically connected；
Another current output terminal of the automatic controller respectively with the third electric control valve, the second wind turbine, electronic three
Logical regulating valve is electrically connected.
The invention also discloses another airborne oxygen consumption type inerting system for utilizing engine tail gas heat quantity, including fuel tank,
First spark arrester, the first wind turbine, preheater, the first electric control valve, electric heater, the second electric control valve, First Heat Exchanger,
First temperature sensor, the first oxygen concentration sensor, the first hydrocarbon sensor, reactor, the second hydrocarbon pass
Sensor, the second oxygen concentration sensor, cooler, separator, second temperature sensor, third electric control valve, first are unidirectionally
Check-valves, the second spark arrester, third oxygen concentration sensor, the second wind turbine, electric three-way regulating valves, the second one way stop peturn valve and from
Movement controller；
The fuel tank includes gas vent and gas access；The electric three-way regulating valves include an entrance and two outlets；
The automatic controller includes a current input terminal and two current output terminals；
The gas vent of the fuel tank, the first spark arrester, the first wind turbine entrance be sequentially connected by pipeline；
Entrance of the outlet of first wind turbine respectively with the outlet of second one way stop peturn valve, preheater cold side channel passes through
Pipeline connects；
The outlet of the preheater cold side channel enters with the entrance of first electric control valve, the second electric control valve respectively
Mouth is connected by pipeline；
The outlet of first electric control valve is connected by pipeline with the entrance of the electric heater；
The second motorized adjustment valve outlet is connected by pipeline with the entrance of the First Heat Exchanger cold side channel；
The entrance of first temperature sensor respectively with the outlet of the electric heater, the outlet of First Heat Exchanger cold side channel
It is connected by pipeline；
The outlet of first temperature sensor, the first oxygen concentration sensor, the first hydrocarbon sensor, reactor,
Two hydrocarbon sensors, the second oxygen concentration sensor, the hot-side channel of preheater, the hot-side channel of cooler, water separation
Device, second temperature sensor, third electric control valve, the first one way stop peturn valve, the second spark arrester, fuel tank gas access pass through
Pipeline is sequentially connected；
The probe of the third oxygen concentration sensor stretches into the fuel tank, the concentration for incuding oxygen in the fuel tank, and
Pass it to the automatic controller；
The entrance of second wind turbine connects ram-air, and outlet is connected by pipeline with the entrance of the electric three-way regulating valves；
The one outlet of the electric three-way regulating valves is connected by pipeline with the entrance of second one way stop peturn valve, another
Outlet is connected by pipeline with the entrance of the cooler cold side channel；
The outlet of the cooler cold side channel is connected to by pipeline at exhaust gas discharge；
The entrance of the First Heat Exchanger hot-side channel connects motor exhaust, and the outlet of First Heat Exchanger hot-side channel passes through pipeline
It is connected at exhaust gas discharge；
The current input terminal of the automatic controller respectively with the second temperature sensor, third oxygen concentration sensor, first
Temperature sensor, the first oxygen concentration sensor, the first hydrocarbon sensor, the second hydrocarbon sensor, the second oxygen
Concentration sensor is electrically connected；
One current output terminal of the automatic controller respectively with first wind turbine, the first electric control valve, electric heater,
Second electric control valve is electrically connected；
Another current output terminal of the automatic controller respectively with the third electric control valve, the second wind turbine, electronic three
Logical regulating valve is electrically connected.
The present invention has the following technical effects using above technical scheme is compared with the prior art：
The invention discloses a kind of airborne oxygen consumption type inerting systems using engine tail gas heat quantity, by fuel tank upper gaseous phase space
Fuel vapor and air mixture carry out flameless catalytic combustion, fuel-steam after excess temperature is adjusted in catalyst oxidation reactor
In hydrocarbon be oxidized to carbon dioxide and water, after subcooler and separator, obtained low water content inerting
Gaseous mixture returns to fuel tank top and is rinsed inerting, achievees the purpose that fire-proof and explosion-proof.In the present invention, the heat of motor exhaust is utilized
It measures to heat reaction gas, reaches generation catalytic reaction condition.When the inerting of ground, independent electric heater unit is used.Tool
Have the advantages that capacity usage ratio is high, optimize inerting system performance, the inerting time is short, non-environmental-pollution.
Description of the drawings
Fig. 1 is that a kind of airborne oxygen consumption type inerting system using engine tail gas heat quantity indirectly heat is illustrated in the present invention
Figure；
Fig. 2 utilizes the direct-fired airborne oxygen consumption type inerting system schematic diagram of engine tail gas heat quantity to be a kind of in the present invention.
In figure, 1- fuel tanks, the first spark arresters of 2-, the first wind turbines of 3-, 4- preheaters, the first electric control valves of 5-, 6- electricity adds
Hot device, the second electric control valves of 7-, 8- First Heat Exchangers, the first temperature sensors of 9-, the first oxygen concentration sensors of 10-, 11-
One hydrocarbon sensor, 12- reactors, the second hydrocarbon sensors of 13-, the second oxygen concentration sensors of 14-, 15-
Cooler, 16- separators, 17- second temperature sensors, 18- third electric control valves, the first one way stop peturn valves of 19-, 20-
Second spark arrester, 21- third oxygen concentration sensors, the second wind turbines of 22-, 23- electric three-way regulating valves, the second one-way non-returns of 24-
Valve, the second heat exchangers of 25-, 26- power circulating devices, the 4th electric control valves of 27-, 28- automatic controllers.
Specific implementation mode
Technical scheme of the present invention is described in further detail below in conjunction with the accompanying drawings：
The present invention can be embodied in many different forms, and should not be assumed that be limited to the embodiments described herein.On the contrary, providing
These embodiments will give full expression to the scope of the present invention to keep the disclosure thoroughly and complete to those skilled in the art.
In the accompanying drawings, for the sake of clarity it is exaggerated component.
As shown in Figure 1, a kind of airborne oxygen consumption type inerting system using engine tail gas heat quantity.The outlet of fuel tank 1 passes through pipe
Road is connected with the first spark arrester 2,3 entrance of the first wind turbine in turn；The outlet of first wind turbine 3 is exported with the second one way stop peturn valve 24
It is connect simultaneously with 4 cold side channel entrance of preheater by pipeline；The outlet of 4 cold side channel of the preheater is by pipeline simultaneously with the
One electric control valve, 5 entrance, the connection of 7 entrance of the second electric control valve；The outlet of first electric control valve 5 and electric heater 6
Entrance connects；The outlet of second electric control valve 7 is connect with 8 cold side channel entrance of First Heat Exchanger；The electric heater 6 goes out
Mouth is exported with 8 cold side channel of First Heat Exchanger and is connect simultaneously with 9 entrance of the first temperature sensor by pipeline；First temperature
The outlet of sensor 9 is connected with the first oxygen concentration sensor 10, the first hydrocarbon sensor 11, reactor in turn by pipeline
12, the second hydrocarbon sensor 13, the second oxygen concentration sensor 14,4 hot-side channel of the preheater, 15 hot side of cooler
Channel, separator 16, second temperature sensor 17, third electric control valve 18, the first one way stop peturn valve 19, the second spark arrester
20,1 entrance of the fuel tank.Third oxygen concentration sensor 21 is connect by popping one's head in the fuel tank 1.
Ram-air is aspirated through the second wind turbine 22, and the outlet of the second wind turbine 22 passes through pipeline and electric three-way regulating valves 23
Entrance connects；There are two outlet, one outlets to be entered with the second one way stop peturn valve 24 by pipeline for the electric three-way regulating valves 23
Mouth connection；Secondly outlet is connect by pipeline with 15 cold side channel entrance of cooler；The outlet of 15 cold side channel of the cooler is useless
Gas by pipeline discharge machine outside.The heat conduction medium flows into 27 entrance of the 4th electric control valve；4th electric control valve 27
Outlet is exported with 25 cold side channel of the second heat exchanger and is connect simultaneously with 26 entrance of power circulating device by pipeline；The power follows
It is logical that the outlet of loop device 26 clearance pipeline is connected with 8 hot-side channel of the First Heat Exchanger, 25 cold side of the second heat exchanger in turn
Road entrance；Motor exhaust flows through after 25 hot-side channel of the second heat exchanger outside discharge machine.
There are one current input terminal, two current output terminals, the second temperature sensor 17, thirds for automatic controller 28
Oxygen concentration sensor 21, the first temperature sensor 9, the first oxygen concentration sensor 10, the first hydrocarbon sensor 11, second
Hydrocarbon sensor 13, the second oxygen concentration sensor 14 are in parallel by cable and are inputted with 28 electric current of the automatic controller
End connection；28 one current output terminal of the automatic controller by cable respectively with first wind turbine 3, the first motorized adjustment
The current input terminal company of valve 5, electric heater 6, the second electric control valve 7, power circulating device 26, the 4th electric control valve 27
It connects.The automatic controller 28 secondly current output terminal by cable respectively with the third electric control valve 18, the second wind turbine
22, the current input terminal connection of electric three-way regulating valves 23.
The present embodiment is used to rinse inerting to aircraft fuel tank, and specific work process is as follows：
1）Fuel-tank inert gas process：The gas on 1 top of the fuel tank flows through described first under the swabbing action of the wind turbine 3
Spark arrester 2, the wind turbine 3；It is mixed with the ram-air for flowing through second one way stop peturn valve 24；Mixed gas is in the preheating
It is preheated in device 4；When the inerting of ground, after mixed gas flows through first electric control valve 5, the quilt in the electric heater 6
It is further heated to reaction required temperature；In flight course when inerting, after mixed gas flows through second electric control valve 7,
It is heated to reaction required temperature in 8 cold side channel of the First Heat Exchanger；High-temperature gas is followed by first temperature
Sensor 9, the first oxygen concentration sensor 10, the first hydrocarbon sensor 11；It is anti-that catalysis occurs in the reactor 12
It answers；High temperature and humidity gas after reaction is mainly nitrogen, carbon dioxide, water；High temperature and humidity gas flows successively through second carbon
Hydrogen compound sensor 13, the second oxygen concentration sensor 14；It is tentatively cooled down in the primary cooler 4；Then described
The air that is stamped in 15 hot-side channel of cooler further cools down；Cooled gas goes out liquid is precipitated in the separator 16
Water, liquid water by pipeline discharge machine outside；The air of low temperature drying is obtained followed by the second temperature sensor 17, third
Electric control valve 18, one way stop peturn valve 19, the second spark arrester 20；It finally obtains nitrogen-rich gas and flows back to fuel tank and be rinsed inerting.
Ram-air is divided into two strands, one flows through described second after the suction of the second wind turbine 22 in the electric three-way regulating valves 23
It participates in reacting with preparation after the gas mixing on fuel tank top after one way stop peturn valve 24；Excessively described 15 cold side of cooler of another plume is logical
High-temperature gas after road cooling reaction.
2）Tail gas heating process：Since motor exhaust contains toxic component, so being situated between as intermediate using heat conduction medium
Matter avoids motor exhaust from penetrating into reaction gas；The heat conduction medium can be the media such as air, conduction oil.Heat conduction matchmaker
Jie absorbs engine tail gas heat quantity in 25 cold side channel of the second heat exchanger；Then in the work of the power circulating device 26
Under, the mixed gas for participating in reaction is heated into 8 hot-side channel of First Heat Exchanger；Then the second heat exchanger 25 is flowed back to again
Cold side channel；When circulating heat conduction medium deficiency, spare medium flows through the 4th electric control valve 27 and enters progress in cycle
Supplement.
3）The process that system is opened, closes, controlled：
Opening process --- the third oxygen concentration sensor 21 detects 1 gas-phase space oxygen concentration of the fuel tank and passes signal
Defeated to arrive the automatic controller 28, when oxygen concentration is more than given value, automatic controller 28 is connected to first wind turbine 3, the
One electric control valve 5, electric heater 6, the second electric control valve 7, power circulating device 26, the 4th electric control valve 27, third
Circuit between electric control valve 18, the second wind turbine 22, electric three-way regulating valves 23, system are in running order.
Closing process --- the third oxygen concentration sensor 21 detect 1 gas-phase space oxygen concentration of the fuel tank be less than to
When definite value, automatic controller 28 disconnects first wind turbine 3, the first electric control valve 5, electric heater 6, the second electric control valve
7, power circulating device 26, the 4th electric control valve 27, third electric control valve 18, the second wind turbine 22, electric three-way regulating valves
Circuit between 23, system are closed.
Control process --- when system is in running order, the automatic controller 28 is connected to the second temperature sensor
17, third oxygen concentration sensor 21, the first temperature sensor 9, the first oxygen concentration sensor 10, the first hydrocarbon sensor
11, the circuit between the second hydrocarbon sensor 13, the second oxygen concentration sensor 14 and corresponding data is acquired.According to described
Oxygen concentration numerical value that third oxygen concentration sensor 21 is passed back controls the frequency of the frequency conversion fan 4；When carrying out ground inerting,
It opens first electric control valve 5, close second electric control valve 7, detected according to first temperature sensor 9
Gas temperature control the heating frequency of the electric heater 6；When state of flight inerting, first motorized adjustment is closed
Valve 5 opens second electric control valve 7, and the gas temperature detected according to first temperature sensor 9 is described to control
The opening and closing of the frequency of power circulating device 26 and the 4th electric control valve 27；According to first oxygen concentration sensor
10, the first hydrocarbon sensor 11, the second hydrocarbon sensor 13, the second oxygen concentration sensor 14 detect anti-
Front and back gas oxygen concentration and hydrocarbon concentration is answered to control the aperture of the electric three-way regulating valves 23, to improve inerting effect
Rate.By 17 probe gas temperature of the second temperature sensor and transfer signals to the automatic controller 28；Work as temperature
When more than given value, the controller 28 exports control signal to the third electric control valve 18, makes its closing, to ensure to return
The gas temperature that oil return box carries out inerting is less than specified value, ensures fuel tank safety；And it is visited according to the second temperature sensor 17
The gas temperature measured, to control the frequency of second wind turbine 22 and the aperture of electric three-way regulating valves 23.
Fig. 2 utilizing the direct-fired airborne oxygen consumption type inerting system schematic diagram of engine tail gas heat quantity to be a kind of.The system
With embodiment 1 the difference is that, eliminate the intermediate thermal conductivity of heat conduction medium.Motor exhaust is directly to the reaction mixture gas body
It is heated.
The outlet of fuel tank 1 is connected with the first spark arrester 2,3 entrance of the first wind turbine in turn by pipeline；First wind turbine 3 goes out
Mouth is exported with the second one way stop peturn valve 24 and is connect simultaneously with 4 cold side channel entrance of preheater by pipeline；4 cold side of the preheater
Channel outlet is connect with 5 entrance of the first electric control valve, 7 entrance of the second electric control valve simultaneously by pipeline；First electricity
The dynamic outlet of regulating valve 5 is connect with 6 entrance of electric heater；The outlet of second electric control valve 7 and 8 cold side channel of First Heat Exchanger
Entrance connects；The electric heater 6 export with 8 cold side channel of First Heat Exchanger outlet by pipeline simultaneously with the first temperature sensing
9 entrance of device connects；The outlet of first temperature sensor 9 is connected with the first oxygen concentration sensor 10, first in turn by pipeline
It is hydrocarbon sensor 11, reactor 12, the second hydrocarbon sensor 13, the second oxygen concentration sensor 14, described pre-
4 hot-side channel of hot device, 15 hot-side channel of cooler, separator 16, second temperature sensor 17, third electric control valve 18,
First one way stop peturn valve 19, the second spark arrester 20,1 entrance of the fuel tank.Third oxygen concentration sensor 21 by probe with it is described
Fuel tank 1 connects.
Ram-air is aspirated through the second wind turbine 22, and the outlet of the second wind turbine 22 passes through pipeline and electric three-way regulating valves 23
Entrance connects；There are two outlet, one outlets to be entered with the second one way stop peturn valve 24 by pipeline for the electric three-way regulating valves 23
Mouth connection；Secondly outlet is connect by pipeline with 15 cold side channel entrance of cooler；The outlet of 15 cold side channel of the cooler is useless
Gas by pipeline discharge machine outside.Motor exhaust flows through after 8 hot-side channel of the First Heat Exchanger outside discharge machine.
There are one current input terminal, two current output terminals, the second temperature sensor 17, thirds for automatic controller 28
Oxygen concentration sensor 21, the first temperature sensor 9, the first oxygen concentration sensor 10, the first hydrocarbon sensor 11, second
Hydrocarbon sensor 13, the second oxygen concentration sensor 14 are in parallel by cable and are inputted with 28 electric current of the automatic controller
End connection；28 one current output terminal of the automatic controller by cable respectively with first wind turbine 3, the first motorized adjustment
The current input terminal connection of valve 5, electric heater 6, the second electric control valve 7.The automatic controller 28 is secondly current output terminal
Connected respectively with the current input terminal of the third electric control valve 18, the second wind turbine 22, electric three-way regulating valves 23 by cable
It connects.
The present embodiment is used to rinse inerting to aircraft fuel tank, and specific work process is as follows：
1）Fuel-tank inert gas process：The gas on 1 top of the fuel tank flows through described first under the swabbing action of the wind turbine 3
Spark arrester 2, the wind turbine 3；It is mixed with the ram-air for flowing through second one way stop peturn valve 24；Mixed gas is in the preheating
It is preheated in device 4；When the inerting of ground, after mixed gas flows through first electric control valve 5, the quilt in the electric heater 6
It is further heated to reaction required temperature；In flight course when inerting, after mixed gas flows through second electric control valve 7,
It is heated to reaction required temperature in 8 cold side channel of the First Heat Exchanger；High-temperature gas is followed by first temperature
Sensor 9, the first oxygen concentration sensor 10, the first hydrocarbon sensor 11；It is anti-that catalysis occurs in the reactor 12
It answers；High temperature and humidity gas after reaction is mainly nitrogen, carbon dioxide, water；High temperature and humidity gas flows successively through second carbon
Hydrogen compound sensor 13, the second oxygen concentration sensor 14；It is tentatively cooled down in the primary cooler 4；Then described
The air that is stamped in 15 hot-side channel of cooler further cools down；Cooled gas goes out liquid is precipitated in the separator 16
Water, liquid water by pipeline discharge machine outside；The air of low temperature drying is obtained followed by the second temperature sensor 17, third
Electric control valve 18, one way stop peturn valve 19, the second spark arrester 20；It finally obtains nitrogen-rich gas and flows back to fuel tank and be rinsed inerting.
Ram-air is divided into two strands, one flows through described second after the suction of the second wind turbine 22 in the electric three-way regulating valves 23
It participates in reacting with preparation after the gas mixing on fuel tank top after one way stop peturn valve 24；Excessively described 15 cold side of cooler of another plume is logical
High-temperature gas after road cooling reaction.
2）Tail gas heating process：Motor exhaust flows through 8 hot-side channel of the First Heat Exchanger, wherein to preparing to participate in
The mixed gas of reaction is heated.
3）The process that system is opened, closes, controlled：
Opening process --- the third oxygen concentration sensor 21 detects 1 gas-phase space oxygen concentration of the fuel tank and passes signal
Defeated to arrive the automatic controller 28, when oxygen concentration is more than given value, automatic controller 28 is connected to first wind turbine 3, the
One electric control valve 5, electric heater 6, the second electric control valve 7, third electric control valve 18, the second wind turbine 22, electric three passes
Circuit between regulating valve 23, system are in running order.
Closing process --- the third oxygen concentration sensor 21 detect 1 gas-phase space oxygen concentration of the fuel tank be less than to
When definite value, automatic controller 28 disconnects first wind turbine 3, the first electric control valve 5, electric heater 6, the second electric control valve
7, the circuit between third electric control valve 18, the second wind turbine 22, electric three-way regulating valves 23, system are closed.
Control process --- when system is in running order, the automatic controller 28 is connected to the second temperature sensor
17, third oxygen concentration sensor 21, the first temperature sensor 9, the first oxygen concentration sensor 10, the first hydrocarbon sensor
11, the circuit between the second hydrocarbon sensor 13, the second oxygen concentration sensor 14 and corresponding data is acquired.According to described
Oxygen concentration numerical value that third oxygen concentration sensor 21 is passed back controls the frequency of the frequency conversion fan 4；When carrying out ground inerting,
It opens first electric control valve 5, close second electric control valve 7, detected according to first temperature sensor 9
Gas temperature control the heating frequency of the electric heater 6；When state of flight inerting, first motorized adjustment is closed
Valve 5 opens second electric control valve 7；According to first oxygen concentration sensor 10, the first hydrocarbon sensor
11, gas oxygen concentration and hydrocarbon before and after the reaction that the second hydrocarbon sensor 13, the second oxygen concentration sensor 14 detect
Compound concentration controls the aperture of the electric three-way regulating valves 23, to improve inerting efficiency.It is passed by the second temperature
17 probe gas temperature of sensor simultaneously transfers signals to the automatic controller 28；When temperature is more than given value, the control
Device 28 exports control signal to the third electric control valve 18, makes its closing, to ensure to return to the gas of fuel tank progress inerting
Temperature is less than specified value, ensures fuel tank safety；And the gas temperature detected according to the second temperature sensor 17, to control
The frequency of second wind turbine 22 and the aperture of electric three-way regulating valves 23.
Those skilled in the art of the present technique are it is understood that unless otherwise defined, all terms used herein（Including skill
Art term and scientific terminology）With meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.Also
It should be understood that those terms such as defined in the general dictionary should be understood that with in the context of the prior art
The consistent meaning of meaning, and unless defined as here, will not be explained with the meaning of idealization or too formal.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not limited to this hair
Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection domain within.
Claims (2)
1. a kind of airborne oxygen consumption type inerting system using engine tail gas heat quantity, which is characterized in that include fuel tank（1）, first
Spark arrester（2）, the first wind turbine（3）, preheater（4）, the first electric control valve（5）, electric heater（6）, the second electric control valve
（7）, First Heat Exchanger（8）, the first temperature sensor（9）, the first oxygen concentration sensor（10）, the first hydrocarbon sensor
（11）, reactor（12）, the second hydrocarbon sensor（13）, the second oxygen concentration sensor（14）, cooler（15）, moisture
From device（16）, second temperature sensor（17）, third electric control valve（18）, the first one way stop peturn valve（19）, the second spark arrester
（20）, third oxygen concentration sensor（21）, the second wind turbine（22）, electric three-way regulating valves（23）, the second one way stop peturn valve（24）、
Second heat exchanger（25）, power circulating device（26）, the 4th electric control valve（27）And automatic controller（28）；
The fuel tank（1）Including gas vent and gas access；The electric three-way regulating valves（23）Including an entrance and two
A outlet；The automatic controller（33）Including a current input terminal and two current output terminals；
The fuel tank（1）Gas vent, the first spark arrester（2）, the first wind turbine（3）Entrance be sequentially connected by pipeline；
First wind turbine（3）Outlet respectively with second one way stop peturn valve（24）Outlet, preheater（4）Cold side channel
Entrance connected by pipeline；
The preheater（4）The outlet of cold side channel respectively with first electric control valve（5）Entrance, the second motorized adjustment
Valve（7）Entrance connected by pipeline；
First electric control valve（5）Outlet pass through pipeline and the electric heater（6）Entrance connection；
Second electric control valve（7）Outlet passes through pipeline and the First Heat Exchanger（8）The entrance of cold side channel connects；
First temperature sensor（9）Entrance respectively with the electric heater（6）Outlet, First Heat Exchanger（8）Cold side
The outlet in channel is connected by pipeline；
First temperature sensor（9）Outlet, the first oxygen concentration sensor（10）, the first hydrocarbon sensor
（11）, reactor（12）, the second hydrocarbon sensor（13）, the second oxygen concentration sensor（14）, preheater（4）Hot side
Channel, cooler（15）Hot-side channel, separator（16）, second temperature sensor（17）, third electric control valve（18）、
First one way stop peturn valve（19）, the second spark arrester（20）, fuel tank（1）Gas access be sequentially connected by pipeline；
The third oxygen concentration sensor（21）Probe stretch into the fuel tank（1）It is interior, for incuding the fuel tank（1）Interior oxygen
Concentration, and pass it to the automatic controller（28）；
Second wind turbine（22）Entrance connect ram-air, outlet passes through pipeline and the electric three-way regulating valves（23）Enter
Mouth connection；
The electric three-way regulating valves（23）One outlet pass through pipeline and second one way stop peturn valve（24）Entrance connect
It connects, another outlet passes through pipeline and the cooler（15）The entrance of cold side channel connects；
The cooler（15）The outlet of cold side channel is connected to by pipeline at exhaust gas discharge；
4th electric control valve（27）Entrance connect external heat conduction medium, the 4th electric control valve（27）Outlet respectively and
Second heat exchanger（25）The outlet of cold side channel, power circulating device（26）Entrance connected by pipeline；
The power circulating device（26）Outlet, First Heat Exchanger（8）Hot-side channel, the second heat exchanger（25）Cold side channel
Entrance clearance pipeline is sequentially connected；
Second heat exchanger（25）The entrance of hot-side channel connects motor exhaust, the second heat exchanger（25）The outlet of hot-side channel
It is connected at exhaust gas discharge by pipeline；
The automatic controller（28）Current input terminal respectively with the second temperature sensor（17）, third oxygen concentration sensing
Device（21）, the first temperature sensor（9）, the first oxygen concentration sensor（10）, the first hydrocarbon sensor（11）, the second carbon
Hydrogen compound sensor（13）, the second oxygen concentration sensor（14）Electrical connection；
The automatic controller（28）A current output terminal respectively with first wind turbine（3）, the first electric control valve
（5）, electric heater（6）, the second electric control valve（7）, power circulating device（26）, the 4th electric control valve（27）Electrical phase
Even；
The automatic controller（28）Another current output terminal respectively with the third electric control valve（18）, the second wind turbine
（22）, electric three-way regulating valves（23）It is electrically connected.
2. a kind of airborne oxygen consumption type inerting system using engine tail gas heat quantity, which is characterized in that include fuel tank（1）, first
Spark arrester（2）, the first wind turbine（3）, preheater（4）, the first electric control valve（5）, electric heater（6）, the second electric control valve
（7）, First Heat Exchanger（8）, the first temperature sensor（9）, the first oxygen concentration sensor（10）, the first hydrocarbon sensor
（11）, reactor（12）, the second hydrocarbon sensor（13）, the second oxygen concentration sensor（14）, cooler（15）, moisture
From device（16）, second temperature sensor（17）, third electric control valve（18）, the first one way stop peturn valve（19）, the second spark arrester
（20）, third oxygen concentration sensor（21）, the second wind turbine（22）, electric three-way regulating valves（23）, the second one way stop peturn valve（24）
And automatic controller（28）；
The fuel tank（1）Including gas vent and gas access；The electric three-way regulating valves（23）Including an entrance and two
A outlet；The automatic controller（33）Including a current input terminal and two current output terminals；
The fuel tank（1）Gas vent, the first spark arrester（2）, the first wind turbine（3）Entrance be sequentially connected by pipeline；
First wind turbine（3）Outlet respectively with second one way stop peturn valve（24）Outlet, preheater（4）Cold side channel
Entrance connected by pipeline；
The preheater（4）The outlet of cold side channel respectively with first electric control valve（5）Entrance, the second motorized adjustment
Valve（7）Entrance connected by pipeline；
First electric control valve（5）Outlet pass through pipeline and the electric heater（6）Entrance connection；
Second electric control valve（7）Outlet passes through pipeline and the First Heat Exchanger（8）The entrance of cold side channel connects；
First temperature sensor（9）Entrance respectively with the electric heater（6）Outlet, First Heat Exchanger（8）Cold side
The outlet in channel is connected by pipeline；
First temperature sensor（9）Outlet, the first oxygen concentration sensor（10）, the first hydrocarbon sensor
（11）, reactor（12）, the second hydrocarbon sensor（13）, the second oxygen concentration sensor（14）, preheater（4）Hot side
Channel, cooler（15）Hot-side channel, separator（16）, second temperature sensor（17）, third electric control valve（18）、
First one way stop peturn valve（19）, the second spark arrester（20）, fuel tank（1）Gas access be sequentially connected by pipeline；
The third oxygen concentration sensor（21）Probe stretch into the fuel tank（1）It is interior, for incuding the fuel tank（1）Interior oxygen
Concentration, and pass it to the automatic controller（28）；
Second wind turbine（22）Entrance connect ram-air, outlet passes through pipeline and the electric three-way regulating valves（23）Enter
Mouth connection；
The electric three-way regulating valves（23）One outlet pass through pipeline and second one way stop peturn valve（24）Entrance connect
It connects, another outlet passes through pipeline and the cooler（15）The entrance of cold side channel connects；
The cooler（15）The outlet of cold side channel is connected to by pipeline at exhaust gas discharge；
The First Heat Exchanger（8）The entrance of hot-side channel connects motor exhaust, First Heat Exchanger（8）The outlet of hot-side channel is logical
Piping is connected at exhaust gas discharge；
The automatic controller（28）Current input terminal respectively with the second temperature sensor（17）, third oxygen concentration sensing
Device（21）, the first temperature sensor（9）, the first oxygen concentration sensor（10）, the first hydrocarbon sensor（11）, the second carbon
Hydrogen compound sensor（13）, the second oxygen concentration sensor（14）Electrical connection；
The automatic controller（28）A current output terminal respectively with first wind turbine（3）, the first electric control valve
（5）, electric heater（6）, the second electric control valve（7）It is electrically connected；
The automatic controller（28）Another current output terminal respectively with the third electric control valve（18）, the second wind turbine
（22）, electric three-way regulating valves（23）It is electrically connected.
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| CN110053780A (en) * | 2019-04-30 | 2019-07-26 | 南京航空航天大学 | It is a kind of to flow to transform oxygen consumption type inerting system |
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| CN112937882A (en) * | 2021-04-09 | 2021-06-11 | 重庆交通大学绿色航空技术研究院 | Aircraft power supply and fuel tank inerting integrated system and aircraft fuel tank inerting method |
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| EP3882156A1 (en) * | 2020-03-17 | 2021-09-22 | Hamilton Sundstrand Corporation | Catalytic fuel tank inerting systems |
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