CN207748031U - A kind of catalysis burning inerting aircraft fuel tank system with tonifying Qi - Google Patents
A kind of catalysis burning inerting aircraft fuel tank system with tonifying Qi Download PDFInfo
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- CN207748031U CN207748031U CN201721698308.3U CN201721698308U CN207748031U CN 207748031 U CN207748031 U CN 207748031U CN 201721698308 U CN201721698308 U CN 201721698308U CN 207748031 U CN207748031 U CN 207748031U
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Abstract
The catalysis that the utility model discloses a kind of with tonifying Qi is burnt inerting aircraft fuel tank system, belongs to fire-proof and explosion-proof technical field, the invention also discloses its control method, concrete principle is：Fuel tank upper gaseous phase space fuel vapor and air mixture carry out flameless catalytic combustion in catalyst oxidation reactor, generate carbon dioxide, the carbon dioxide of the nitrogen and reaction generation that do not participate in reaction carries out inerting as mixing noble gas to fuel tank, achieve the purpose that fire-proof and explosion-proof, the system also designs the progress for promoting reaction using engine bleed, and provide large and small flow two kinds of reaction patterns, pass through the switching of big flow, small flow inerting pattern, the time required to substantially reducing inerting, have many advantages, such as that flow is simple, inerting is efficient, pollution-free.
Description
Technical field
The utility model belongs to fire-proof and explosion-proof technical field, is related to a kind of aircraft oil tank fuel inerting system and method,
Especially a kind of catalysis burning inerting aircraft fuel tank system with tonifying Qi.
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.
It is a large amount of studies have shown that it is maximally efficient side to change fuel oil to fire the fire-proof and explosion-proof technology of fuel tanker of the limit
Method reduces fuel tank gas by injecting inerting gas such as nitrogen, carbon dioxide into fuel tank and breathe out dragon 1301 etc. with this
Phase space oxygen content makes fuel vapor be in Flammability limits hereinafter, preventing fuel tank explosion on fire.The source of inerting gas can
It is divided into carrying using container and extracts two major classes with airborne equipment.The former is by carrying filling such as liquid nitrogen, gas nitrogen, the storage for breathing out dragon 1301
It deposits tank and is filled with inert gas into fuel tank to convert out oxygen in fuel tank in flight course, reduce oxygen concentration, but this mode
Aircraft load-carrying is increased, life cycle is short, less economical, it is difficult to accomplish whole inerting.From the later stage seventies in last century, pass through machine
The airborne inerting technology development for carrying equipment extraction inerting gas is very rapid, and the airborne of nitrogen-rich gas is produced using hollow-fibre membrane
It is also that fuel tanker the most ripe fires suppression technology that nitrogen inerting technology processed, which is most widely used at present,.Although being based on UF membrane
OBIGGS be current mainstream inerting technology, but still have many problems, such as membrane efficiency is low leads to aircraft generation for separation
Repay that loss is big, seperation film entrance demand pressure height causes not using on many types（Such as helicopter）, tiny film wire and
Infiltration aperture gradually block and air source in ozone cause to cause when film properties decaying serious, N2 filling fuel tanks fuel-steam to leak dirt
Contaminate environment etc..
Utility model content
The utility model is low, expensive for hollow fiber membrane nitrogen efficiency existing in the prior art, pollutes environment
The shortcomings of, a kind of catalysis burning inerting aircraft fuel tank system with tonifying Qi is provided, by fuel tank upper gaseous phase space fuel oil
Steam and air mixture carry out flameless catalytic combustion in catalyst oxidation reactor, generate carbon dioxide, do not participate in reaction
The carbon dioxide that nitrogen and reaction generate carries out inerting as mixing noble gas to fuel tank, achievees the purpose that fire-proof and explosion-proof, and solves
It has determined above-mentioned technical barrier.
The utility model is realized in this way：
A kind of catalysis burning inerting aircraft fuel tank system with tonifying Qi, including fuel tank, the gas of the fuel tank upper end
Body outlet passes through pipeline connection successively the first spark arrester, first check-valve, frequency conversion fan, the first temperature sensor, first pressure
Sensor；
The system further includes engine bleed, the engine bleed and passes through pipeline and flow-rate adjustment valve inlet
It is connected；
The flow-rate adjustment valve outlet by pipeline be connected in turn second temperature sensor, second pressure sensor,
Second flow sensor, second check-valve；
The first flow sensor outlet and second check-valve outlet pass through pipeline and preheater cold side channel entrance
Connection；
The preheater cold side channel outlet is connected with electric heater, the first oxygen concentration sensor in turn by pipeline；
The first oxygen concentration sensor outlet is divided into two branch way outlets, and a way outlet passes through pipeline and the first electricity
The dynamic valve inlet that adjusts is connected, and another way outlet is connect by pipeline with the second motorized adjustment valve inlet；Pass through adjusting control
First electric control valve and the second electric control valve are turned on or off to control respectively in big flow catalytic reactor
It carries out catalyst combustion reaction or carries out catalyst combustion reaction in small flow catalytic reactor；
The first motorized adjustment valve outlet is connected with the first Flame arrester, big flow catalysis reaction in turn by pipeline
Device, the second Flame arrester, third check-valves；
The second motorized adjustment valve outlet is connected with third Flame arrester in turn by pipeline, small flow is catalyzed instead
Answer device, the 4th Flame arrester, the 4th check-valves；
The third check-valves, the 4th check-valves are connect with second oxygen concentration sensor one end simultaneously by pipeline；
The second oxygen concentration sensor other end is sequentially connected preheater hot wing passage, cooler hot-side channel, water
Separator gas channel, third temperature sensor, safety device, fuel tank；
There is water jet by piping connection between the separator fluid passage and cooler cold side channel, and described
The second import of water jet connect with ram-air by pipeline；The system further includes automatic controller.
Further, the outlet of the safety device is connected by the upper gaseous phase space of the second spark arrester and fuel tank.
Further, the outlet of the safety device is connect by washing injector with fuel tank, and the washing injection
Device is under tank bottoms minimum level；The washing injector is also connect by oil pump with fuel tank.
Further, the outlet of the safety device is connect by pipeline with gas distributor with fuel tank, and the gas
Export distributor is under tank bottoms minimum level.
Further, the automatic controller includes three current input terminals and two current output terminals；
First temperature sensor, first pressure sensor, first flow sensor, the first oxygen concentration sensor,
Second oxygen concentration sensor is parallel to the one current input terminal of automatic controller by cable parallel connection；
The second temperature sensor, second pressure sensor, second flow sensor, third temperature sensor pass through
Cable is in parallel, and be parallel to automatic controller secondly current input terminal；
The automatic controller is thirdly current input terminal passes through the upper gaseous phase of third oxygen concentration sensor and fuel tank sky
Between connect；
The automatic controller one current output terminal is filled with flow control valve current input terminal, safety respectively by cable
Set current input terminal connection；
The automatic controller secondly current output terminal by cable respectively with frequency conversion fan, electric heater, first electronic
The current input terminal connection of regulating valve, the second electric control valve.
The control method for being catalyzed burning inerting aircraft fuel tank system with tonifying Qi that the invention also discloses a kind of,
It is characterised in that it includes following procedure：
System opening process：The third oxygen concentration sensor detects fuel tank gas-phase space oxygen concentration and passes signal
Defeated to arrive automatic controller, when oxygen concentration is more than given value, automatic controller is connected to frequency conversion fan, flow control valve, electricity and adds
Circuit between hot device, the first electric control valve, the second electric control valve, frequency conversion fan and electric heater unlatching, flow-rate adjustment
Valve is opened, and system is in running order；Simultaneously automatic controller be connected to first temperature sensor, first pressure sensor,
First flow sensor, second temperature sensor, second pressure sensor, second flow sensor, the first oxygen concentration sensor
And the second circuit and gathered data between oxygen concentration sensor；Automatic controller by control first electric control valve,
The opening and closing of second electric control valve switches inerting pattern；
System shutdown procedures：When third oxygen concentration sensor detects fuel tank gas-phase space oxygen concentration less than given value, from
Movement controller disconnects between frequency conversion fan, flow control valve, electric heater, the first electric control valve, the second electric control valve
Circuit, frequency conversion fan is closed with electric heater, flow control valve is closed, and system is closed；
System protection process：When third temperature sensor detects separator Outlet Gas Temperature more than regulation, the guarantor
Protection unit disconnects, and gas does not return again to fuel tank.
Further, the process further includes washing inerting fuel tank process using injector, specially：From separator
The low water content inerting gaseous mixture of outlet enters in washing injector, and after being mixed with the fuel oil of tank bottoms, washing injector goes out
Mouth flows into the fuel oil in fuel tank.Oxygen content in fuel oil reduces, and mixed gas is in and fires the limit hereinafter, reaching inerting
Purpose.
Further, the process further includes washing inerting fuel tank process using distributor, specially：From separator
The low water content inerting gaseous mixture of outlet is admitted in gas distributor, and the fuel oil in fuel tank is flowed into from gas distributor outlets
In.Oxygen content in fuel oil reduces, and mixed gas is in and fires the limit hereinafter, achieving the purpose that inerting.
The advantageous effect of the utility model compared with the existing technology is：
1）The utility model is by fuel tank upper gaseous phase space fuel vapor and air mixture in catalyst oxidation reactor
Flameless catalytic combustion is carried out, carbon dioxide is generated, it is lazy as mixing not participate in the carbon dioxide that the nitrogen reacted and reaction generate
Gas carries out inerting to fuel tank, achievees the purpose that fire-proof and explosion-proof；
2）The utility model design promotes the progress of reaction using engine bleed, and it is anti-to provide two kinds of large and small flow
Pattern is answered, by the switching of big flow, small flow inerting pattern, the time required to substantially reducing inerting, has flow simple, lazy
Change the advantages that efficient, pollution-free；
3）The used injector of the utility model washs inerting fuel tank, and the oxygen content in fuel oil reduces, mixed gas
In firing the limit hereinafter, achieving the purpose that inerting；Inerting fuel tank is washed using distributor, the oxygen made in fuel oil can be reached
Gas content reduces, and mixed gas is in and fires the limit hereinafter, also achieving the purpose that inerting；
4）Solves the progress reacted with inerting using tonifying Qi subsystem, oxygen content gradually drops in fuel tank upper gas
It is low, react the insufficient problem of required amount of oxygen.
Description of the drawings
Fig. 1 is the system schematic of catalysis burning inerting aircraft fuel tank of the utility model with tonifying Qi；
Fig. 2 is the catalysis burning inerting aircraft fuel tank with tonifying Qi that the utility model washs fuel oil using injector
System schematic；
Fig. 3 is the catalysis burning inerting aircraft fuel oil with tonifying Qi that the utility model washs fuel oil using gas distributor
The system schematic of case；
Wherein, 1- fuel tanks, the first spark arresters of 2-, 3- first check-valves, 4- frequency conversion fans, the first temperature sensors of 5-, 6-
First pressure sensor, 7- first flow sensors, 8- flow control valves, 9- second temperature sensors, 10- second pressures sensing
Device, 11- second flow sensors, 12- preheaters, 13- electric heaters, the first oxygen concentration sensors of 14-, the first electric adjustables of 15-
Save valve, the first Flame arresters of 16-, 17- big flow catalytic reactors, the second Flame arresters of 18-, the second motorized adjustments of 19-
Valve, 20- third Flame arresters, the small flow catalytic reactors of 21-, the 4th Flame arresters of 22-, the second oxygen concentrations of 23- sensing
Device, 24- coolers, 25- separators, 26- water jets, 27- third temperature sensors, 28- safety devices, the second back-fire reliefs of 29-
Device, 30- third oxygen concentration sensors, 31- automatic controllers, 32- oil pumps, 33- wash injector, 34- gas distributors, 35-
Second check-valve, 36- third check-valves, the 4th check-valves of 37-.
Specific implementation mode
The utility model is further described with reference to embodiment.As described below is only that the utility model 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 the every other embodiment that is obtained, shall fall within the protection scope of the present invention.
The inerting aircraft fuel tank system as shown in Figure 1, the catalysis with tonifying Qi of the utility model is burnt, 1 gas of fuel tank
It is exported to first flow sensor 7 and passes through pipeline connection successively the first spark arrester 2, first check-valve 3, the 4, first temperature of frequency conversion fan
Spend sensor 5, first pressure sensor 6；8 entrance of flow control valve is connected by pipeline with engine bleed outlet；Flow tune
Section valve 8 is exported to second check-valve 35 and is connected with second temperature sensor 9, second pressure sensor 10, the in turn by pipeline
Two flow sensors 11；12 cold side channel entrance of preheater is stopped with the outlet of first flow sensor 7 and second simultaneously by pipeline
Return the outlet of valve 35 connection；12 cold side channel of preheater is exported is connected with electric add between the first oxygen concentration sensor 14 by pipeline
Hot device 13；The outlet of first oxygen concentration sensor 14 is divided into two branch way outlets, and a way outlet passes through pipeline and the first electric adjustable
Section 15 entrance of valve is connected, and another way outlet is connect by pipeline with 19 entrance of the second electric control valve；First motorized adjustment
Valve 15 is connected with the first Flame arrester 16, big flow catalytic reactor 17, second in turn to third check-valves 36 by pipeline
Flame arrester 18；Second electric control valve, 19 to the 4th check-valves 37 is connected with third suppression in turn by pipeline
Device 20, small flow catalytic reactor 21, the 4th Flame arrester 22；Second Flame arrester 18 and the 4th Flame arrester
22 are connect with the second oxygen concentration sensor 23 simultaneously by pipeline；Second oxygen concentration sensor 23 to 1 entrance of the fuel tank passes through
Pipeline has been sequentially connected with 12 hot-side channel of the preheater, 24 hot-side channel of cooler, 25 gas passage of separator, third temperature
Spend sensor 27, safety device 28, the second spark arrester 29；25 fluid passage of separator and 24 cold side channel of the cooler it
Between by piping connection have water jet 26；26 second import of water jet passes through piping connection with ram-air；Oxygen concentration sensor
30 are connect by popping one's head in the fuel tank 1.
First temperature sensor 5, first pressure sensor 6, first flow sensor 7, the first oxygen concentration sensor
14, the second oxygen concentration sensor 23 is in parallel by cable and is connect with 31 current input terminal of automatic controller；The second temperature
Sensor 9, second pressure sensor 10, second flow sensor 11, third temperature sensor 27 it is in parallel by cable and with institute
State the connection of 31 current input terminal of automatic controller；The third oxygen concentration sensor 30 passes through cable and the automatic controller 31
Current input terminal connects.31 current output terminal of automatic controller by cable respectively with 8 current input terminal of flow control valve, safety
28 current input terminal of device connects；31 current output terminal of the automatic controller by cable respectively with frequency conversion fan 4, electrical heating
The current input terminal connection of device 13, the first electric control valve 15, the second electric control valve 19.
As shown in Fig. 2, the outlet of safety device 28 is connect by pipeline with 33 gas access of washing injector, 1 bottom of fuel tank
Fuel outlet is connected with oil pump 32 between washing 33 fuel liquid entrance of injector by pipeline, and washing injector 33 is in fuel tank
Under 1 bottom minimum level.Injector 33 is washed by setting, low water content inerting gaseous mixture flows into the fuel oil in fuel tank 1, combustion
Oxygen content in oil reduces, and mixed gas is in and fires the limit hereinafter, achieving the purpose that inerting.
As shown in figure 3, the outlet of safety device 28 is connect by pipeline with 34 entrance of gas distributor, the gas distributor
34 outlets are under 1 bottom minimum level of fuel tank.By gas distributor 34, low water content inerting gaseous mixture flows into fuel tank 1
In fuel oil, the oxygen content in fuel oil reduces, and mixed gas is in and fires the limit hereinafter, achieving the purpose that inerting.
Specifically, the operation method process of aircraft fuel tank system is as follows：
System is opened：Third oxygen concentration sensor 30 detects 1 gas-phase space oxygen concentration of the fuel tank and by signal transmission
To the automatic controller 31, when oxygen concentration is more than given value, automatic controller 31 is connected to the frequency conversion fan 4, flow
Circuit between regulating valve 8, electric heater 13, the first electric control valve 15, the second electric control valve 19, frequency conversion fan 4 and electricity
Heater 13 is opened, flow control valve 8 is opened, and system is in running order.The automatic controller 31 is connected to described the simultaneously
One temperature sensor 5, first pressure sensor 6, first flow sensor 7, second temperature sensor 9, second pressure sensor
10, the circuit between second flow sensor 11, the first oxygen concentration sensor 14 and the second oxygen concentration sensor 23 and number is acquired
According to.The automatic controller 31 is switched by controlling the opening and closing of first electric control valve 15, the second electric control valve 19
Inerting pattern.The first electric control valve 15 to be opened, the second electric control valve 19 is closed, flow control valve 8 is under big aperture,
Catalyst combustion reaction is carried out in big flow catalytic reactor 17, and reaction pattern is catalyzed for big flow；When closing the first motorized adjustment
Valve 15 opens the second electric control valve 19, reduces the aperture of flow control valve 8, is urged in small flow catalytic reactor 21
Change combustion reaction, reaction pattern is catalyzed for small flow.
System is closed：When third oxygen concentration sensor 30 detects 1 gas-phase space oxygen concentration of the fuel tank less than given value,
Automatic controller 31 disconnects the frequency conversion fan 4, flow control valve 8, electric heater 13, first the 15, second electricity of electric control valve
Circuit between dynamic regulating valve 19, frequency conversion fan 4 is closed with electric heater 13, flow control valve 8 is closed, and system, which is in, closes shape
State.
System protection process：Third temperature sensor 27 detects 25 Outlet Gas Temperature of the separator and is more than regulation
When, the protective device 28 disconnects, and gas does not return again to fuel tank.
Specifically, the catalysis burning of aircraft fuel tank system and inerting process are as follows：
1）Catalytic reaction process：
Pattern one：Big flow catalytic reaction process, catalysis reaction just start when, 1 upper gaseous phase space oxygen concentration of fuel tank and
Fuel-steam content is all higher, fuel tank top oxygen content can be made to reduce as early as possible using big flow catalytic reactor.Open the first electricity
Dynamic regulating valve 15, closes the second electric control valve 19, opens the frequency conversion fan 4 and aspirate 1 middle and upper part gas-phase space of the fuel tank
Combustion mixture, at this time frequency conversion fan 4 run under larger frequency, flammable mixture is by combustion and steam, oxygen, nitrogen, two
Carbonoxide, vapor and other trace impurities are constituted, and flow through first spark arrester 2, check-valves 3, the 4, first temperature of frequency conversion fan
Spend sensor 5, first pressure sensor 6, first flow sensor 7；Flow control valve 8 is at this time under big aperture, engine
Bleed is followed by second temperature sensor 9, second pressure sensor 10, second flow sensor 11, second check-valve 35；It can
It after burning mixt is mixed with engine bleed, flows through 12 cold side channel of preheater and is preheated, then add in electric heater 13
The first oxygen concentration sensor 14, the first electric control valve 15, the first Flame arrester 16 are flowed through after heat to reaction required temperature,
Catalyst combustion reaction is carried out in big flow catalytic reactor 17, by the fuel-steam in combustion mixture be oxidized to carbon dioxide and
Vapor, combustion mixture intermediate fuel oil steam content reduce, and gas concentration lwevel increases, and the high temperature inerting for becoming high-moisture is mixed
Gas is closed, the second Flame arrester 18, the second oxygen concentration sensor 23 are and then flowed through.Pass through first oxygen concentration sensor 14
The oxygen concentration and first temperature sensor 5 that are measured with the second oxygen concentration sensor 23, first pressure sensor 6, first
The data that flow sensor 7, second temperature sensor 9, second pressure sensor 10, second flow sensor 11 measure, can
The amount of oxygen and combustible vapor amount of solution reaction consumption, further can analysis of catalysed reactions device performance.
Pattern two：Small flow catalytic reaction process, after reaction carries out a period of time, 1 upper space oxygen concentration of fuel tank drop
Low velocity is slack-off, it is no longer necessary to aspirate a large amount of combustible gas mixtures and carry out catalysis reaction, close the first electric control valve at this time
15, the second electric control valve 19 is opened, the aperture of flow control valve 8 is reduced, is switched to more energy efficient small flow catalysis reaction mould
Formula；Unlike the big flow catalytic reaction process of pattern one：Reaction gas is after the first oxygen concentration sensor 14, successively
After flowing through the second electric control valve 19, third spark arrester 20, catalyst combustion reaction is carried out in small flow catalytic reactor 21.
2）Reaction product cooling and removal process：From the big flow catalytic reactor 17 or small flow catalytic reactor 21
Outlet high-moisture inerting gaseous mixture discharges heat in 12 hot-side channel of the preheater, will flow through 12 cold side of the preheater
The gas in channel heats, and after the part vapor in high-moisture inerting gaseous mixture after release heat is changed into liquid water, becomes
For middle water content inerting gaseous mixture；Middle water content inerting gaseous mixture is stamped air into one in 24 gas passage of the cooler
Step cooling becomes low water content inerting gaseous mixture；Low water content inerting gaseous mixture is in the separator 25 by gas and liquid
Water detaches；The liquid water that the separator 25 separates enters the water spray by 25 liquid outlet of the separator
24 fluid passage of the cooler and 24 gas of the cooler are flowed through in device 26, and after being mixed with ram-air in water jet 26
Gaseous product in body channel exchanges heat.
3）Rinse inerting fuel tank process：The low water content inerting gaseous mixture left from 25 gas vent of the separator
After the third temperature sensor 27, safety device 28, the second spark arrester 29, it is sent back to 1 top gas of the fuel tank
Oxygen content reduces after original gas mixing in phase space, with gas-phase space, and carbon dioxide and nitrogen content ratio increase, and fuel oil steams
The flammable of vapour reduces, and reaches inerting purpose；According to the temperature value that the third temperature sensor 27 measures, to control the peace
The open and close of full device 28, to ensure that fuel tank is in a safe condition.
Embodiment 2
The present embodiment washs inerting using injector, which is applied to carry out aircraft fuel tank or ground fuel tank
Washing fuel, as shown in Fig. 2, fuel tank 1 is oil storage can container, 1 lower part of fuel tank is placed with washing injector 33, the combustion of 1 bottom of fuel tank
Oil export is connected with oil pump 32 between washing 33 fuel liquid entrance of injector by pipeline, and the washing injector 33 is in oil
Under 1 bottom minimum level of case.
The course of work is as follows：
The low water content inerting gaseous mixture left from 25 gas vent of the separator is admitted to the washing injector
In 33, after being mixed with the fuel oil from 1 bottom of the fuel tank, the fuel oil in fuel tank 1 is flowed into from the washing injector 33 outlet
In, the oxygen content in fuel oil reduces, and mixed gas is in and fires the limit hereinafter, achieving the purpose that inerting.
Embodiment 3
The present embodiment washs inerting fuel tank using distributor, which is applied to aircraft fuel tank or ground fuel tank
Washing fuel is carried out, as shown in figure 3, being placed with gas distributor 34, the gas distributor inside the fluid in the fuel tank 1
34 outlets are under 1 bottom minimum level of fuel tank.
The course of work is as follows：
The low water content inerting gaseous mixture left from 25 gas vent of the separator is admitted in gas distributor 34,
Gas distributor 34 is arranged in the fluid of fuel tank 1, and low water content inerting gaseous mixture exports from gas distributor 34 and flows into fuel tank 1
In fuel oil in, oxygen content in fuel oil reduces, and mixed gas is in and fires the limit hereinafter, achieving the purpose that inerting.
Claims (5)
- Inerting aircraft fuel tank system, including fuel tank 1. a kind of catalysis with tonifying Qi is burnt（1）, which is characterized in that it is described Fuel tank（1）The gas vent of upper end connects the first spark arrester successively by pipeline（2）, first check-valve（3）, frequency conversion fan（4）、 First temperature sensor（5）, first pressure sensor（6）, first flow sensor（7）；The system further includes engine bleed, the engine bleed and passes through pipeline and flow control valve（8）Entrance It is connected；The flow control valve（8）Outlet is connected with second temperature sensor in turn by pipeline（9）, second pressure sensor （10）, second flow sensor（11）, second check-valve（35）；The first flow sensor（7）Outlet and second check-valve（35）Outlet passes through pipeline and preheater（12）Cold side is logical Road entrance connection；The preheater（12）Cold side channel outlet is connected with electric heater in turn by pipeline（13）, the first oxygen concentration sensor （14）；First oxygen concentration sensor（14）Outlet by two subtubes, respectively with the first electric control valve（15）Entrance And second electric control valve（19）Entrance connects；First electric control valve（15）Outlet is connected with the first Flame arrester in turn by pipeline（16）, big flow catalysis Reactor（17）, the second Flame arrester（18）, third check-valves（36）；Second electric control valve（19）Outlet is connected with third Flame arrester in turn by pipeline（20）, small flow urges Change reactor（21）, the 4th Flame arrester（22）, the 4th check-valves（37）；The third check-valves（36）, the 4th check-valves（37）By pipeline simultaneously with the second oxygen concentration sensor（23）One end Connection；Second oxygen concentration sensor（23）The other end is sequentially connected preheater（12）Hot-side channel, cooler（24）Hot side Channel, separator（25）Gas passage, third temperature sensor（27）, safety device（28）, fuel tank（1）；The separator（25）Fluid passage and cooler（24）There is water jet by piping connection between cold side channel （26）, and the water jet（26）Second import is connect by pipeline with ram-air；The system further includes automatic controller（31）.
- The inerting aircraft fuel tank system 2. a kind of catalysis with tonifying Qi according to claim 1 is burnt, which is characterized in that The safety device（28）Outlet pass through the second spark arrester（29）With fuel tank（1）Upper gaseous phase space connection.
- The inerting aircraft fuel tank system 3. a kind of catalysis with tonifying Qi according to claim 1 is burnt, which is characterized in that The safety device（28）Outlet pass through wash injector（33）With fuel tank（1）Connection, and the washing injector （33）In fuel tank（1）Under the minimum level of bottom；The washing injector（33）Also pass through oil pump（32）With fuel tank（1）Connection.
- The inerting aircraft fuel tank system 4. a kind of catalysis with tonifying Qi according to claim 1 is burnt, which is characterized in that The safety device（28）Outlet pass through pipeline and gas distributor（34）With fuel tank（1）Connection, and the gas distributes Device（34）It is placed in the fluid of fuel tank 1, the gas distributor（34）Outlet is under 1 bottom minimum level of fuel tank.
- The inerting aircraft fuel tank system 5. a kind of catalysis with tonifying Qi according to claim 1 is burnt, which is characterized in that The automatic controller（31）Including three current input terminals and two current output terminals；First temperature sensor（5）, first pressure sensor（6）, first flow sensor（7）, the first oxygen concentration pass Sensor（14）, the second oxygen concentration sensor（23）By cable parallel connection, and it is parallel to automatic controller（31）One electric current it is defeated Enter end；The second temperature sensor（9）, second pressure sensor（10）, second flow sensor（11）, third temperature pass Sensor（27）By cable parallel connection, and it is parallel to automatic controller（31）Secondly current input terminal；The automatic controller（31）Thirdly current input terminal passes through third oxygen concentration sensor（30）With fuel tank（1）Top Gas-phase space connects；The automatic controller（31）One current output terminal by cable respectively with flow control valve（8）Current input terminal, peace Full device（28）Current input terminal connects；The automatic controller（31）Secondly current output terminal by cable respectively with frequency conversion fan（4）, electric heater（13）, One electric control valve（15）, the second electric control valve（19）Current input terminal connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721698308.3U CN207748031U (en) | 2017-12-08 | 2017-12-08 | A kind of catalysis burning inerting aircraft fuel tank system with tonifying Qi |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721698308.3U CN207748031U (en) | 2017-12-08 | 2017-12-08 | A kind of catalysis burning inerting aircraft fuel tank system with tonifying Qi |
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| CN207748031U true CN207748031U (en) | 2018-08-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107856869A (en) * | 2017-12-08 | 2018-03-30 | 南京航空航天大学 | A kind of catalysis burning inerting aircraft fuel tank system and control method with tonifying Qi |
| EP3632801A1 (en) * | 2018-10-04 | 2020-04-08 | Hamilton Sundstrand Corporation | Catalytic fuel tank inerting apparatus for aircraft |
-
2017
- 2017-12-08 CN CN201721698308.3U patent/CN207748031U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107856869A (en) * | 2017-12-08 | 2018-03-30 | 南京航空航天大学 | A kind of catalysis burning inerting aircraft fuel tank system and control method with tonifying Qi |
| CN107856869B (en) * | 2017-12-08 | 2023-06-23 | 南京航空航天大学 | Catalytic combustion inerting aircraft fuel tank system with air supplementing function and control method |
| EP3632801A1 (en) * | 2018-10-04 | 2020-04-08 | Hamilton Sundstrand Corporation | Catalytic fuel tank inerting apparatus for aircraft |
| US11628947B2 (en) | 2018-10-04 | 2023-04-18 | Hamilton Sundstrand Corporation | Catalytic fuel tank inerting apparatus for aircraft |
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