CN211108024U - Combined oxygen consumption type and molecular sieve type fuel tank inerting device - Google Patents
Combined oxygen consumption type and molecular sieve type fuel tank inerting device Download PDFInfo
- Publication number
- CN211108024U CN211108024U CN201920611313.9U CN201920611313U CN211108024U CN 211108024 U CN211108024 U CN 211108024U CN 201920611313 U CN201920611313 U CN 201920611313U CN 211108024 U CN211108024 U CN 211108024U
- Authority
- CN
- China
- Prior art keywords
- molecular sieve
- fuel tank
- inlet
- outlet
- catalytic reactor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 56
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000002828 fuel tank Substances 0.000 title claims abstract description 29
- 230000036284 oxygen consumption Effects 0.000 title claims abstract description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 73
- 239000001301 oxygen Substances 0.000 claims abstract description 73
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 73
- 230000001105 regulatory effect Effects 0.000 claims abstract description 47
- 238000001179 sorption measurement Methods 0.000 claims abstract description 34
- 230000003197 catalytic effect Effects 0.000 claims abstract description 29
- 239000003054 catalyst Substances 0.000 claims description 8
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 claims 3
- 239000007789 gas Substances 0.000 abstract description 49
- 238000005516 engineering process Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 48
- 229910052757 nitrogen Inorganic materials 0.000 description 24
- 239000003921 oil Substances 0.000 description 21
- 239000000446 fuel Substances 0.000 description 13
- 239000000203 mixture Substances 0.000 description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 239000000295 fuel oil Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910001868 water Inorganic materials 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000035899 viability Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 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
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 moisture Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Landscapes
- Separation Of Gases By Adsorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The utility model discloses a joint oxygen consumption formula and molecular sieve formula fuel tank inerting device belongs to the aeronautical system science and technology field. On the basis of the advantages of the compatible oxygen consumption type inerting device and the molecular sieve type inerting device, the problems of gas preheating and poor reliability are solved, and the inerting efficiency is improved. The utility model discloses a: compressor, heat exchanger, pressure regulating valve, molecular sieve adsorption bed, catalytic reactor, filter and dehydrator. One outlet of the oil tank is communicated with the atmospheric environment, the other outlet is connected with a cold side inlet of the heat exchanger, and the cold side outlet is connected with an inlet of the catalytic reactor. The hot-side inlet of the heat exchanger is fed with ram air via a compressor. The hot side outlet, the pressure regulating valve and the molecular sieve adsorption bed are sequentially connected, the molecular sieve adsorption bed is connected with one inlet of the oil tank, the four-way rotary valve is also connected with the inlet of the catalytic reactor, and the outlet of the catalytic reactor is connected with the inlet of the oil tank. The utility model discloses unite two kinds of inertization techniques, promoted inertization efficiency, the good reliability to supply oxygen for the aircraft system of supporting.
Description
Technical Field
The invention relates to the technical field of aviation systems, in particular to a combined oxygen consumption type and molecular sieve type fuel tank inerting device.
Background
The ignition or explosion of the engine fuel system is one of the main causes of the crash of the aircraft. The fire and explosion protection capability of an aircraft fuel system is directly related to the viability and the vulnerability of the aircraft, and also related to the utilization rate, the cost and the personnel safety of the aircraft. If the fuel tank has explosion-proof capability, even if a fire disaster is caused by a medium bullet or other reasons, the aircraft cannot be damaged or killed, and the aircraft can be continuously used after being repaired, so that the utilization rate and the viability of the aircraft are correspondingly improved, and the vulnerability of the aircraft is reduced. The adoption of the explosion-proof technology of the fuel tank of the airplane can also increase the life-saving time, so that the airplane has enough time to return under the condition that the fuel tank fails. In addition, the aircraft can also be protected in emergency situations.
Common aircraft fuel tank inerting technologies mainly include a liquid nitrogen inerting technology, a Halon 1301 inerting technology, a molecular sieve technology, a membrane separation technology and the like. The On-board nitrogen inerting technology (On-board connected gas Generator System, OBIGGS) for preparing nitrogen-rich gas by using hollow fiber membrane is the most economical and practical technology for suppressing the combustion and explosion of the airplane fuel tank at present. The OBIGGS is characterized in that bleed air from an engine or an environmental control system is subjected to temperature regulation, pressure regulation and removal of pollutants such as ozone, moisture, impurities and the like, then the bleed air is introduced into an air separation device formed by a hollow fiber membrane and separated into oxygen-rich gas and nitrogen-rich gas, the oxygen-rich gas is discharged out of the machine, and the nitrogen-rich gas is filled into a fuel tank for washing or flushing according to different flow modes.
In recent years, companies and research institutions at home and abroad are also carrying out a method of reducing the combustible risk of the fuel tank by consuming oxygen and combustible steam in a Gas phase space of the fuel tank by using a catalytic combustion method, which is called Green On-Board Inert Gas Generation System (GOBIGGS). This new inerting technique has several important advantages: the starting speed is high, and in addition, oxygen is consumed in the reactor, the inerting efficiency is high, and the time is short; fuel steam is not discharged outwards, and the environment is protected.
However, the prior art has the disadvantages that the oxygen-consuming inerting system requires the extraction and heating of the gas in the upper part of the fuel tank, and the system requires a large number of components to preheat the gas; the nitrogen-rich gas prepared by the molecular sieve technology has low efficiency and poor reliability, and air needs to be introduced from an engine, so that the compensation loss of an airplane is large.
Disclosure of Invention
The invention provides a combined oxygen consumption type and molecular sieve type fuel tank inerting device which can simultaneously solve the problems of gas preheating and poor reliability and improve the inerting efficiency on the basis of being compatible with the advantages of the oxygen consumption type and molecular sieve type inerting devices.
In order to achieve the purpose, the invention adopts the following technical scheme:
a combined oxygen depletion and molecular sieve fuel tank inerting apparatus comprising: compressor, heat exchanger, pressure regulating valve, molecular sieve adsorption bed, catalytic reactor, filter and dehydrator.
The oil tank to be operated is provided with an inlet and two outlets, wherein one outlet is communicated with the atmosphere through a filter, the other outlet is connected with a cold side inlet of the heat exchanger, and the cold side outlet is connected with an inlet of the catalytic reactor.
Ram air is introduced into a hot-side inlet of the heat exchanger through a compressor, and the ram air heats gas pumped out of an oil tank. The hot side outlet, the pressure regulating valve and the molecular sieve adsorption bed are sequentially connected, the molecular sieve adsorption bed is connected with one inlet of the oil tank, the four-way rotary valve is also connected with the inlet of the catalytic reactor, and the outlet of the catalytic reactor is connected with the other inlet of the oil tank.
Furthermore, the four-way rotary valve is also connected with an oxygen storage bottle.
Furthermore, the number of the molecular sieve adsorption beds is two, and the four-way rotary valve is connected with one of the molecular sieve adsorption beds.
Further, zeolite is arranged inside the molecular sieve adsorption bed.
Furthermore, the catalytic reactor is a fixed bed reactor, and a catalyst is filled in the catalytic reactor.
Further, the catalyst is Pd-Al2O3The fuel steam reacts with oxygen at high temperature under the action of the catalyst to generate water and carbon dioxide.
Furthermore, the compressor and the pressure regulating valve are also connected with a controller.
Further, the controller is also connected with an oxygen concentration sensor, and the oxygen concentration sensor is arranged inside the oil tank.
Further, the controller is also connected with a temperature sensor, and the temperature sensor is arranged at the rear end of the outlet of the catalytic reactor.
Furthermore, the filter is a paper core type filter and can filter fuel oil and solid impurities mixed in the ram air.
The invention has the following beneficial effects:
the high-temperature and high-pressure ram air is introduced into the device from a compressor of the airplane, and the high-temperature ram air is filtered and dried to heat an oxygen-enriched fuel oil steam mixture led out from the upper space of a fuel tank; then the ram air is cooled and enters an adsorption bed by adjusting pressure, and the ram air is divided into nitrogen-rich gas and oxygen-rich gas; introducing the nitrogen-rich gas into an oil tank through regulation to wash and inert the nitrogen-rich gas, and removing an oxygen-rich fuel oil steam mixture in the nitrogen-rich gas; on the other hand, after adjusting part of the oxygen-enriched gas to be stored in an oxygen cylinder, part of the oxygen-enriched gas is led out of the reactor to be mixed with the heated oxygen-enriched fuel steam mixture, the fuel steam mixture is decomposed into water, carbon dioxide and oxygen in the reactor to be consumed, and the nitrogen-enriched gas generated by the reactor is dried, cooled and then introduced into an oil tank to be inerted. The device combines two inerting technologies, greatly improves inerting efficiency, has strong reliability, and can provide oxygen for an aircraft oxygen supply system.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the embodiment.
Wherein, 1-a first flame arrester, 2-an oil tank, 3-an oxygen concentration sensor, 4-a second flame arrester, 5-a first electric regulating valve, 6-a first fan, 7-a second electric regulating valve, 8-a first filter, 9-a third electric regulating valve, 10-a first compressor, 11-a first check valve, 12-a heat exchanger, 13-a second filter, 14-a dryer, 15-a pressure regulating valve, 16-a four-way rotary valve, 17-a first molecular sieve adsorption bed, 18-a second molecular sieve adsorption bed, 19-a fourth electric regulating valve, 20-a fifth electric regulating valve, 21-a second compressor, 22-an oxygen storage bottle, 23-a catalytic reactor, 24-a temperature sensor, 25-a second fan, 26-a dehydrator, 27-a sixth electric regulating valve, 28-a second check valve and 29-a controller.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the present invention will be further described in detail with reference to the following detailed description.
An embodiment of the present invention provides a combined oxygen consumption type and molecular sieve type fuel tank inerting apparatus, as shown in fig. 1, including: the device comprises a first flame arrester 1, an oxygen concentration sensor 3, a second flame arrester 4, a first electric regulating valve 5, a first fan 6, a second electric regulating valve 7, a first filter 8, a third electric regulating valve 9, a first compressor 10, a first check valve 11, a heat exchanger 12, a second filter 13, a dryer 14, a pressure regulating valve 15, a four-way rotary valve 16, a first molecular sieve adsorption bed 17, a second molecular sieve adsorption bed 18, a fourth electric regulating valve 19, a fifth electric regulating valve 20, a second compressor 21, an oxygen storage bottle 22, a catalytic reactor 23, a temperature sensor 24, a second fan 25, a dehydrator 26, a sixth electric regulating valve 27, a second check valve 28 and a controller 29.
The tank 2 to be operated has two inlets and two outlets, one of whichThe outlets are sequentially connected with a second electric regulating valve 7 and a first filter 8, the first filter 8 is communicated with the atmosphere, and the first filter 8 is a paper core type filter. The other outlet is sequentially connected with a cold side inlet of a heat exchanger 12 of the second flame arrester 4, the first electric regulating valve 5 and the first fan 6 through pipelines. The first fan 6 blows the gas in the tank 2 into the heat exchanger 12. The outlet of the cold side of the heat exchanger 12 is connected with the inlet of a catalytic reactor 23, the catalytic reactor 23 is a fixed bed reactor, and the catalyst in the catalytic reactor is Pd-Al2O3A supported catalyst.
The first compressor 10, the first check valve 11 and a hot side inlet of the heat exchanger 12 are sequentially connected through a pipeline, ram air is pressurized and then introduced into the heat exchanger 12, and a hot side outlet of the heat exchanger 12, the second filter 13, the dryer 14, the pressure regulating valve 15 and the four-way rotary valve 16 are sequentially connected. One pipe orifice of the four-way rotary valve 16 is connected with the first molecular sieve adsorption bed 17 or the second molecular sieve adsorption bed 18. The ram air is heated by the gas with the cold side of the heat exchanger 12, filtered and dried, and then flows into the first molecular sieve adsorption bed 17 or the second molecular sieve adsorption bed 18 after being adjusted to a proper pressure by the pressure adjusting valve 15, nitrogen molecules are not easily adsorbed by zeolite in the molecular sieve under high pressure, so that the nitrogen molecules freely pass through the molecular sieve adsorption beds, and oxygen molecules are adsorbed by the molecular sieve, so that the ram air is separated into oxygen-rich gas and nitrogen-rich gas. The nitrogen-rich gas is introduced into one inlet of the oil tank 2 from the outlet of the adsorption bed through a third electric regulating valve 9; the oxygen-enriched gas flows out from a channel of the four-way rotary valve 16, the channel is connected with the fourth electric regulating valve 19 and the fifth electric regulating valve 20, and is connected with the second compressor 21 through the fifth electric regulating valve 20, and the second compressor 21 is connected with the oxygen storage bottle 22, so that the oxygen-enriched gas is sucked into the oxygen storage bottle 22. Oxygen in the oxygen storage bottle 22 enters the aircraft oxygen supply system for supplying oxygen.
The fourth electric regulating valve 19 is connected with the inlet of the catalytic reactor 23, the outlet of the catalytic reactor 23, the second fan 25, the dehydrator 26, the sixth electric regulating valve 27, the second check valve 28, the first flame arrester 1 and the inlet of the oil tank 2 are sequentially connected, the second fan 25 extracts the gas subjected to the catalytic reaction and introduces the gas into the oil tank 2
The oxygen concentration sensor 3 and the temperature sensor 24 are connected to a controller 29. The oxygen concentration sensor 3 is arranged in the oil tank 2, and a probe of the oxygen concentration sensor 3 extends into the upper space of the oil tank 2 to be operated, is used for measuring the oxygen concentration content in the space and transmitting data to the controller 29; the temperature sensor 24 is provided at the outlet of the catalytic reactor 2 for measuring the temperature of the outlet gas and transmitting the data to the controller 29.
The controller 29 is also electrically connected with the first electric control valve 5, the first fan 6, the second electric control valve 7, the third electric control valve 9, the first compressor 10, the first check valve 11, the pressure regulating valve 15, the four-way rotary valve 16, the fourth electric control valve 19, the fifth electric control valve 20, the second compressor 21, the second fan 25, the sixth electric control valve 27 and the second check valve 28, and the controller 29 outputs control signals to control the above devices to work.
The controller adopts a V80-C aviation special P L C module, the temperature sensor adopts a PT1000 temperature sensor, the oxygen concentration sensor adopts a TY-3500-C zirconia oxygen concentration sensor, the electric regulating valve adopts an HJS-63A electric regulating valve, the data acquisition and the control switch function of the controller are all common knowledge in the field, and the controller can be realized by technicians in the field without creative work.
The working process of the embodiment is as follows:
molecular sieve working and inerting process
High-temperature ram air is introduced through a first compressor 10, is cooled through a heat exchanger 12, is dried and filtered through a second filter 13 and a dryer 14, is input into a first molecular sieve adsorption bed 17 after pressure is adjusted through a pressure adjusting valve 15, nitrogen-rich gas flows out from the outlet of the first molecular sieve adsorption bed 17, oxygen-rich gas flows out from one channel of a four-way rotary valve 16, when the first molecular sieve adsorption bed 17 is saturated in adsorption, the four-way rotary valve 16 switches the gas to a second molecular sieve adsorption bed 18, the second molecular sieve adsorption bed 18 starts to work, and the first molecular sieve adsorption bed 17 is subjected to pressure reduction desorption to restore adsorption capacity. The four-way rotary valve 16 is rotated at a speed such that the two beds are alternately subjected to a pressure swing adsorption cycle to form a continuous nitrogen rich stream. The nitrogen-rich gas passes through the oil tank 2 after being adjusted by the third electric adjusting valve 9, and the fuel vapor mixture in the oil tank 2 is exhausted out of the atmosphere after being filtered by the first filter 8, so that the inerting effect is achieved.
Fuel steam catalysis and inerting process
The fuel steam in the upper space of the oil tank 2 is mixed under the suction action of the first fan 6 and the regulation of the first electric regulating valve 5 and is led out, the fuel steam is heated by the heat exchanger 12 and is mixed with a part of oxygen-enriched gas which is separated from the molecular sieve adsorption bed and is regulated by the fourth electric regulating valve 19, the oxygen-enriched gas enters the catalytic reactor 23, the fuel steam mixture is catalyzed into water and carbon dioxide in the catalytic reactor 23, and the oxygen is consumed. The nitrogen-rich gas generated by the catalytic reactor 23 is dehydrated by a dehydrator 26 and then is introduced into the oil tank 2.
Oxygen production process
After the ram air is filtered by the molecular sieve, the oxygen-enriched gas is regulated by a fifth electric regulating valve 20, pressurized by a second compressor 21 and then filled into an oxygen storage bottle 22 for an aircraft oxygen supply system.
Signal processing and control process
The oxygen concentration sensor 3 is used for measuring the oxygen content of air at the upper part of the oil tank 2, transmitting data to the controller 29, and when the oxygen concentration value is larger than a set value, the controller 29 outputs signals to control the first electric regulating valve 5, the first fan 6, the second electric regulating valve 7, the third electric regulating valve 9, the first compressor 10, the first check valve 11, the pressure regulating valve 15, the four-way rotary valve 16, the fourth electric regulating valve 19, the fifth electric regulating valve 20, the second compressor 21, the second fan 25, the sixth electric regulating valve 27 and the second check valve 28 to work; and when the oxygen concentration value is less than the set value, stopping working. The temperature sensor 24 measures the temperature of the gas in the outlet pipeline of the catalytic reactor 23, and when the temperature is higher than a set value, the controller 29 outputs a signal to control the sixth electric regulating valve 27 to close the pipeline, so that high-temperature gas is prevented from entering the oil tank and causing explosion threat. The data acquisition and control switch functions of the controller 29 are well known in the art and can be implemented by those skilled in the art without inventive effort.
The invention has the following beneficial effects:
the high-temperature and high-pressure ram air is introduced into the device from a compressor of the airplane, and the high-temperature ram air is filtered and dried to heat an oxygen-enriched fuel oil steam mixture led out from the upper space of a fuel tank; then the ram air is cooled and enters an adsorption bed by adjusting pressure, and the ram air is divided into nitrogen-rich gas and oxygen-rich gas; introducing the nitrogen-rich gas into an oil tank through regulation to wash and inert the nitrogen-rich gas, and removing an oxygen-rich fuel oil steam mixture in the nitrogen-rich gas; on the other hand, after adjusting part of the oxygen-enriched gas to be stored in an oxygen cylinder, part of the oxygen-enriched gas is led out of the reactor to be mixed with the heated oxygen-enriched fuel steam mixture, the fuel steam mixture is decomposed into water, carbon dioxide and oxygen in the reactor to be consumed, and the nitrogen-enriched gas generated by the reactor is dried, cooled and then introduced into an oil tank to be inerted. The device combines two inerting technologies, greatly improves inerting efficiency, has strong reliability, and can provide oxygen for an aircraft oxygen supply system.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A combined oxygen consumption type and molecular sieve type fuel tank inerting device is characterized by comprising: the system comprises a compressor, a heat exchanger, a pressure regulating valve, a molecular sieve adsorption bed, a catalytic reactor, a filter and a dehydrator;
the oil tank to be operated is provided with two inlets and two outlets, wherein one outlet is communicated with the atmospheric environment through a filter, the other outlet is connected with a cold side inlet of the heat exchanger, and the cold side outlet is connected with an inlet of the catalytic reactor;
the hot side inlet of the heat exchanger is used for leading high-temperature and high-pressure ram air from an engine through a compressor, the hot side outlet, the pressure regulating valve and the molecular sieve adsorption bed are sequentially connected, and the molecular sieve adsorption bed is connected with one inlet of the oil tank;
the four-way rotary valve is also connected with the inlet of the catalytic reactor, and the outlet of the catalytic reactor is connected with the other inlet of the oil tank.
2. The combined oxygen depletion and molecular sieve fuel tank inerting apparatus of claim 1, wherein said four-way rotary valve is further connected to an oxygen storage bottle.
3. The combined oxygen depletion and molecular sieve fuel tank inerting apparatus according to claim 1 or 2, wherein the number of said molecular sieve adsorbent beds is two, and said four-way rotary valve is connected to one of said molecular sieve adsorbent beds.
4. The combined oxygen depletion and molecular sieve fuel tank inerting apparatus of claim 3, wherein the interior of said molecular sieve adsorbent bed is zeolite.
5. The combined oxygen depletion and molecular sieve fuel tank inerting apparatus of claim 1, wherein said catalytic reactor is a fixed bed reactor containing a catalyst.
6. The combined oxygen depletion and molecular sieve fuel tank inerting apparatus of claim 5, wherein said catalyst is Pd-Al2O3A supported catalyst.
7. The combined oxygen depletion and molecular sieve fuel tank inerting apparatus of claim 1, wherein said compressor and pressure regulating valve are further connected to a controller.
8. The combined oxygen depletion and molecular sieve fuel tank inerting apparatus of claim 7, wherein said controller is further connected to an oxygen concentration sensor mounted within said fuel tank.
9. The combined oxygen depletion and molecular sieve fuel tank inerting apparatus of claim 7, wherein said controller is further connected to a temperature sensor disposed at the rear end of the outlet of said catalytic reactor.
10. The combined oxygen depletion and molecular sieve fuel tank inerting apparatus of claim 1, wherein said filter is a paper core filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920611313.9U CN211108024U (en) | 2019-04-30 | 2019-04-30 | Combined oxygen consumption type and molecular sieve type fuel tank inerting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920611313.9U CN211108024U (en) | 2019-04-30 | 2019-04-30 | Combined oxygen consumption type and molecular sieve type fuel tank inerting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211108024U true CN211108024U (en) | 2020-07-28 |
Family
ID=71719418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920611313.9U Active CN211108024U (en) | 2019-04-30 | 2019-04-30 | Combined oxygen consumption type and molecular sieve type fuel tank inerting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211108024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092004A (en) * | 2019-04-30 | 2019-08-06 | 南京航空航天大学 | A kind of joint oxygen consumption formula and molecular-sieve type fuel-tank inert gas device |
-
2019
- 2019-04-30 CN CN201920611313.9U patent/CN211108024U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092004A (en) * | 2019-04-30 | 2019-08-06 | 南京航空航天大学 | A kind of joint oxygen consumption formula and molecular-sieve type fuel-tank inert gas device |
| CN110092004B (en) * | 2019-04-30 | 2024-04-12 | 南京航空航天大学 | Combined oxygen consumption type and molecular sieve type fuel tank inerting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110092004B (en) | Combined oxygen consumption type and molecular sieve type fuel tank inerting device | |
| CN109573073B (en) | Dehumidification device in green inerting system of aircraft fuel tank | |
| CN102091500A (en) | Variable pressure absorption oxygen and nitrogen combined separation method and device | |
| CN104843189A (en) | Catalytic combustion inerting oil tank device and method thereof | |
| CN207330354U (en) | A kind of device of raising PSA hydrogen manufacturing yield and recycling carbon dioxide | |
| US8899968B2 (en) | Combustible gas processing system and combustible gas processing method | |
| CN211108024U (en) | Combined oxygen consumption type and molecular sieve type fuel tank inerting device | |
| CN208700568U (en) | The purification devices of ultra-pure hydrogen in production of polysilicon | |
| US20190185175A1 (en) | Contaminant removal for catalytic fuel tank inerting system | |
| CN101869797A (en) | Method and apparatus for extracting high-purity nitrogen from air | |
| KR102035870B1 (en) | Purifying method and purifying apparatus for argon gas | |
| CN101617030B (en) | flammable gas concentration system | |
| CN106433832A (en) | Process and device for removing CO2 in natural gas | |
| CN201410351Y (en) | Argon purification unit | |
| CN112498712A (en) | Combined hollow fiber membrane and molecular sieve machine-mounted oil tank inerting device | |
| CN109178697A (en) | A kind of multi-purpose station oil tank top gas and harbour gas recovery system for oil | |
| CN101982403A (en) | Hydrogen purification and transportation method | |
| CN110787585A (en) | Recovery method of triphen volatile gas | |
| CN104098069B (en) | A kind of coal gas carries the device of hydrogen | |
| CN210116649U (en) | Aircraft fuel tank consumes oxygen type inerting system | |
| CN215138328U (en) | Tail gas recovery device of methyl ethyl ketone rectifying device | |
| CN214653658U (en) | Nitrogen-rich gas recycling system of pressure swing adsorption nitrogen making machine | |
| CN210391569U (en) | Chemical formula system inert gas fuel tank inerting device | |
| CN211595045U (en) | Two-stage membrane module series type nitrogen making device | |
| CN112498711A (en) | Aircraft fuel tank inerting system with dehumidification function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |