CN211711102U - Cabin pressurization and oxygenation device based on hollow fiber membrane airborne nitrogen production technology - Google Patents
Cabin pressurization and oxygenation device based on hollow fiber membrane airborne nitrogen production technology Download PDFInfo
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- CN211711102U CN211711102U CN201922086804.9U CN201922086804U CN211711102U CN 211711102 U CN211711102 U CN 211711102U CN 201922086804 U CN201922086804 U CN 201922086804U CN 211711102 U CN211711102 U CN 211711102U
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- Prior art keywords
- heat exchanger
- oxygen
- hollow fiber
- nitrogen
- inlet
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 239000012528 membrane Substances 0.000 title claims abstract description 43
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 42
- 239000012510 hollow fiber Substances 0.000 title claims abstract description 37
- 238000006213 oxygenation reaction Methods 0.000 title claims abstract description 10
- 238000005516 engineering process Methods 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000007789 gas Substances 0.000 claims abstract description 78
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000001301 oxygen Substances 0.000 claims abstract description 46
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 44
- 230000001105 regulatory effect Effects 0.000 claims description 28
- 239000012530 fluid Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000003595 mist Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 3
- 229910001882 dioxygen Inorganic materials 0.000 abstract 2
- 230000035699 permeability Effects 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 8
- 238000004880 explosion Methods 0.000 description 5
- 230000001629 suppression Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a passenger cabin pressure boost oxygenation device based on hollow fiber membrane machine year nitrogen making technique utilizes the hollow fiber membrane to different to the selective permeability or the permeation rate of oxygen and nitrogen gas, and to specific membrane characteristic, the permeability of nitrogen gas is greater than oxygen, and nitrogen gas is rapidly along radial discharge through hollow fiber membrane, and oxygen enrichment is along axial discharge in the tow. The nitrogen-rich gas generated by the membrane separation system is used for inerting the fuel tank, and the oxygen-rich gas generated by the membrane separation system is used for pressurizing the cabin through the ejector, so that the oxygen concentration in the cabin is improved, and the inerting system has the advantages of high energy utilization rate, optimized inerting system performance, no environmental pollution and the like.
Description
Technical Field
The utility model relates to a fire prevention explosion suppression technical field especially relates to a passenger cabin pressure boost oxygenation device based on hollow fiber membrane machine year nitrogen making technique.
Background
The empty space at the upper part of the fuel tank of the airplane is filled with a large amount of combustible oil gas, and certain explosion hidden danger exists, so that effective technical measures must be adopted to reduce the probability of explosion of the fuel tank and reduce the harm degree of the fuel tank as much as possible. A great deal of theoretical and experimental research work has been carried out at home and abroad aiming at the fire prevention and explosion suppression technology of the fuel tank, and a great achievement is obtained. The airborne nitrogen inerting technology for preparing nitrogen-rich gas by adopting a hollow fiber membrane is the most economic and practical aircraft fuel tank explosion suppression technology at present.
The hollow fiber membrane machine-carried nitrogen production technology is characterized in that engine bleed air or environment-controlled bleed air is separated, obtained nitrogen-rich gas is used for fuel tank inerting, and oxygen concentration of vacant space at the upper part of an aircraft fuel tank is controlled to be always lower than oxygen concentration required for supporting fuel oil combustion in the flight process.
With the development of membrane preparation technology, hollow fiber membrane separation has become the first choice in the inerting of fuel tanks, and is widely applied to domestic and foreign military aircraft and civil aircraft, but the technology of carrying nitrogen by a hollow fiber membrane still has certain problems, for example, the separated oxygen-enriched gas still has more energy and is directly discharged without utilization to cause a large amount of energy waste.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the defect that involves in the background art, provide a passenger cabin pressure boost oxygenation device based on hollow fiber membrane machine year nitrogen making technique.
The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme:
the cabin pressurization oxygenation device based on the hollow fiber membrane airborne nitrogen production technology comprises a gas compressor, a first flow regulating valve, a first heat exchanger, a second heat exchanger, a fan, a water separator, a filter, an oil mist separator, a hollow fiber membrane separator, a second flow regulating valve, a third flow regulating valve, an ejector, a pressure gauge and an oxygen analyzer;
the first heat exchanger, the second heat exchanger and the condenser respectively comprise a hot side channel and a cold side channel; the ejector comprises an ejection fluid inlet, an air inlet and an air outlet; the hollow fiber membrane separator comprises a mixed gas inlet, an oxygen-enriched gas outlet and a nitrogen-enriched gas outlet, and is used for separating the mixed gas entering from the mixed gas inlet into the oxygen-enriched gas and the nitrogen-enriched gas, and then outputting the oxygen-enriched gas and the nitrogen-enriched gas through the oxygen-enriched gas outlet and the nitrogen-enriched gas outlet respectively;
one end of the compressor is connected with an engine bleed air pipeline, and the other end of the compressor, the first flow regulating valve, the hot side channel of the first heat exchanger, the hot side channel of the second heat exchanger and the inlet of the water separator are sequentially connected through pipelines;
the inlet of the cold side channel of the first heat exchanger is connected with outside air, and the outlet of the cold side channel of the first heat exchanger is connected with the inlet of the cold side channel of the second heat exchanger through a pipeline; the outlet of the cold side channel of the second heat exchanger is connected with an outside air pipeline; the fan is arranged in a pipeline connecting the cold side channel of the second heat exchanger with the outside air and is used for sucking the outside air into the cold side channel of the first heat exchanger and then discharging the outside air through the cold side channel of the second heat exchanger;
the outlet of the water separator is respectively connected with the air inlet of the ejector and the inlet of the filter through pipelines;
the outlet of the filter, the oil mist separator and the mixed gas inlet of the hollow fiber membrane separator are connected in sequence through pipelines;
an oxygen-enriched gas outlet of the hollow fiber membrane separator is connected with an injection fluid inlet pipeline of the injector through the third flow regulating valve, and a nitrogen-enriched gas outlet of the hollow fiber membrane separator is connected with one end pipeline of the second flow regulating valve; the other end of the second flow regulating valve is used for outputting nitrogen;
the gas outlet of the ejector, the pressure gauge and the inlet of the oxygen analyzer are sequentially connected through pipelines; the outlet of the oxygen analyzer is used for oxygen output.
The utility model also discloses a working method of this passenger cabin pressure boost oxygenation device based on hollow fiber membrane machine year nitrogen technology, concrete step is as follows:
leading air of the engine to enter a compressor through a pipeline for pressurization and temperature rise; high-temperature and high-pressure gas supplied by the gas compressor enters the first heat exchanger through the first flow regulating valve for precooling, and then is cooled through the second heat exchanger; the cold source of the first heat exchanger and the cold source of the second heat exchanger are provided by sucking ram air by a fan;
one part of the mixed gas cooled by the second heat exchanger is input into an air inlet of the ejector, and the other part of the mixed gas is introduced into the hollow fiber membrane separator after water vapor impurities are removed by the water separator, the filter and the oil mist separator;
the hollow fiber membrane separator separates the mixed gas into oxygen-rich gas and nitrogen-rich gas, wherein the generated nitrogen-rich gas is connected through the second flow regulating valve pipeline for nitrogen-rich gas output, and the generated oxygen-rich gas is input to an injection fluid inlet of the injector;
the nozzle of the ejector expands to form a jet flow, the jet flow and the oxygen-enriched gas entering from the injection fluid inlet of the ejector are mixed to form fluid with the same energy and speed distribution, and the fluid is supplied to the cabin through the pressure gauge and the oxygen analyzer for pressurization.
The utility model adopts the above technical scheme to compare with prior art, have following technological effect:
the utility model discloses a nitrogen-rich gas that hollow fiber membrane separator machine carried the nitrogen technology and produced membrane separation system is used for the inertization of fuel tank to carry out the pressure boost through the oxygen-rich gas that the ejector produced membrane separation system to the passenger cabin, improve the indoor oxygen concentration. Has the advantages of high energy utilization rate, good inerting performance, no environmental pollution and the like.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1-a compressor, 2-a first flow regulating valve, 3-a first heat exchanger, 4-a second heat exchanger, 5-a fan, 6-a water separator, 7-a filter, 8-an oil mist separator, 9-a hollow fiber membrane separator, 10-a second flow regulating valve, 11-a third flow regulating valve, 12-an ejector, 13-a pressure gauge and 14-an oxygen analyzer.
Detailed Description
The technical scheme of the utility model is further explained in detail with the attached drawings as follows:
the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.
As shown in fig. 1, the cabin pressurization and oxygenation device based on the hollow fiber membrane airborne nitrogen generation technology comprises a gas compressor, a first flow regulating valve, a first heat exchanger, a second heat exchanger, a fan, a water separator, a filter, an oil mist separator, a hollow fiber membrane separator, a second flow regulating valve, a third flow regulating valve, an ejector, a pressure gauge and an oxygen analyzer;
the first heat exchanger, the second heat exchanger and the condenser respectively comprise a hot side channel and a cold side channel; the ejector comprises an ejection fluid inlet, an air inlet and an air outlet; the hollow fiber membrane separator comprises a mixed gas inlet, an oxygen-enriched gas outlet and a nitrogen-enriched gas outlet, and is used for separating the mixed gas entering from the mixed gas inlet into the oxygen-enriched gas and the nitrogen-enriched gas, and then outputting the oxygen-enriched gas and the nitrogen-enriched gas through the oxygen-enriched gas outlet and the nitrogen-enriched gas outlet respectively;
one end of the compressor is connected with an engine bleed air pipeline, and the other end of the compressor, the first flow regulating valve, the hot side channel of the first heat exchanger, the hot side channel of the second heat exchanger and the inlet of the water separator are sequentially connected through pipelines;
the inlet of the cold side channel of the first heat exchanger is connected with outside air, and the outlet of the cold side channel of the first heat exchanger is connected with the inlet of the cold side channel of the second heat exchanger through a pipeline; the outlet of the cold side channel of the second heat exchanger is connected with an outside air pipeline; the fan is arranged in a pipeline connecting the cold side channel of the second heat exchanger with the outside air and is used for sucking the outside air into the cold side channel of the first heat exchanger and then discharging the outside air through the cold side channel of the second heat exchanger;
the outlet of the water separator is respectively connected with the air inlet of the ejector and the inlet of the filter through pipelines;
the outlet of the filter, the oil mist separator and the mixed gas inlet of the hollow fiber membrane separator are connected in sequence through pipelines;
an oxygen-enriched gas outlet of the hollow fiber membrane separator is connected with an injection fluid inlet pipeline of the injector through the third flow regulating valve, and a nitrogen-enriched gas outlet of the hollow fiber membrane separator is connected with one end pipeline of the second flow regulating valve; the other end of the second flow regulating valve is used for outputting nitrogen;
the gas outlet of the ejector, the pressure gauge and the inlet of the oxygen analyzer are sequentially connected through pipelines; the outlet of the oxygen analyzer is used for oxygen output.
The utility model also discloses a working method of this passenger cabin pressure boost oxygenation device based on hollow fiber membrane machine year nitrogen technology, concrete step is as follows:
leading air of the engine to enter a compressor through a pipeline for pressurization and temperature rise; high-temperature and high-pressure gas supplied by the gas compressor enters the first heat exchanger through the first flow regulating valve for precooling, and then is cooled through the second heat exchanger; the cold source of the first heat exchanger and the cold source of the second heat exchanger are provided by sucking ram air by a fan;
one part of the mixed gas cooled by the second heat exchanger is input into an air inlet of the ejector, and the other part of the mixed gas is introduced into the hollow fiber membrane separator after water vapor impurities are removed by the water separator, the filter and the oil mist separator;
the hollow fiber membrane separator separates the mixed gas into oxygen-rich gas and nitrogen-rich gas, wherein the generated nitrogen-rich gas is connected through the second flow regulating valve pipeline for nitrogen-rich gas output, and the generated oxygen-rich gas is input to an injection fluid inlet of the injector;
the nozzle of the ejector expands to form a jet flow, the jet flow and the oxygen-enriched gas entering from the injection fluid inlet of the ejector are mixed to form fluid with the same energy and speed distribution, and the fluid is supplied to the cabin through the pressure gauge and the oxygen analyzer for pressurization.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (1)
1. The cabin pressurization and oxygenation device based on the hollow fiber membrane airborne nitrogen production technology is characterized by comprising a gas compressor, a first flow regulating valve, a first heat exchanger, a second heat exchanger, a fan, a water separator, a filter, an oil mist separator, a hollow fiber membrane separator, a second flow regulating valve, a third flow regulating valve, an ejector, a pressure gauge and an oxygen analyzer;
the first heat exchanger, the second heat exchanger and the condenser respectively comprise a hot side channel and a cold side channel; the ejector comprises an ejection fluid inlet, an air inlet and an air outlet; the hollow fiber membrane separator comprises a mixed gas inlet, an oxygen-enriched gas outlet and a nitrogen-enriched gas outlet, and is used for separating the mixed gas entering from the mixed gas inlet into the oxygen-enriched gas and the nitrogen-enriched gas, and then outputting the oxygen-enriched gas and the nitrogen-enriched gas through the oxygen-enriched gas outlet and the nitrogen-enriched gas outlet respectively;
one end of the compressor is connected with an engine bleed air pipeline, and the other end of the compressor, the first flow regulating valve, the hot side channel of the first heat exchanger, the hot side channel of the second heat exchanger and the inlet of the water separator are sequentially connected through pipelines;
the inlet of the cold side channel of the first heat exchanger is connected with outside air, and the outlet of the cold side channel of the first heat exchanger is connected with the inlet of the cold side channel of the second heat exchanger through a pipeline; the outlet of the cold side channel of the second heat exchanger is connected with an outside air pipeline; the fan is arranged in a pipeline connecting the cold side channel of the second heat exchanger with the outside air and is used for sucking the outside air into the cold side channel of the first heat exchanger and then discharging the outside air through the cold side channel of the second heat exchanger;
the outlet of the water separator is respectively connected with the air inlet of the ejector and the inlet of the filter through pipelines;
the outlet of the filter, the oil mist separator and the mixed gas inlet of the hollow fiber membrane separator are connected in sequence through pipelines;
an oxygen-enriched gas outlet of the hollow fiber membrane separator is connected with an injection fluid inlet pipeline of the injector through the third flow regulating valve, and a nitrogen-enriched gas outlet of the hollow fiber membrane separator is connected with one end pipeline of the second flow regulating valve; the other end of the second flow regulating valve is used for outputting nitrogen;
the gas outlet of the ejector, the pressure gauge and the inlet of the oxygen analyzer are sequentially connected through pipelines; the outlet of the oxygen analyzer is used for oxygen output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922086804.9U CN211711102U (en) | 2019-11-27 | 2019-11-27 | Cabin pressurization and oxygenation device based on hollow fiber membrane airborne nitrogen production technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922086804.9U CN211711102U (en) | 2019-11-27 | 2019-11-27 | Cabin pressurization and oxygenation device based on hollow fiber membrane airborne nitrogen production technology |
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| Publication Number | Publication Date |
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| CN211711102U true CN211711102U (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922086804.9U Withdrawn - After Issue CN211711102U (en) | 2019-11-27 | 2019-11-27 | Cabin pressurization and oxygenation device based on hollow fiber membrane airborne nitrogen production technology |
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| CN (1) | CN211711102U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110963059A (en) * | 2019-11-27 | 2020-04-07 | 南京航空航天大学 | Cabin pressurization and oxygenation device and method based on hollow fiber membrane airborne nitrogen production technology |
| CN113232867A (en) * | 2021-04-28 | 2021-08-10 | 南京航空航天大学 | Helicopter temperature regulation and oil tank explosion-proof system |
-
2019
- 2019-11-27 CN CN201922086804.9U patent/CN211711102U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110963059A (en) * | 2019-11-27 | 2020-04-07 | 南京航空航天大学 | Cabin pressurization and oxygenation device and method based on hollow fiber membrane airborne nitrogen production technology |
| CN110963059B (en) * | 2019-11-27 | 2024-03-19 | 南京航空航天大学 | Cabin pressurizing and oxygenation device and method based on hollow fiber membrane airborne nitrogen production technology |
| CN113232867A (en) * | 2021-04-28 | 2021-08-10 | 南京航空航天大学 | Helicopter temperature regulation and oil tank explosion-proof system |
| CN113232867B (en) * | 2021-04-28 | 2022-04-15 | 南京航空航天大学 | Helicopter temperature regulation and oil tank explosion-proof system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20201020 Effective date of abandoning: 20240319 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20201020 Effective date of abandoning: 20240319 |