CN212951148U - Oxygen generation and supply system for helicopter - Google Patents
Oxygen generation and supply system for helicopter Download PDFInfo
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- CN212951148U CN212951148U CN202021603687.5U CN202021603687U CN212951148U CN 212951148 U CN212951148 U CN 212951148U CN 202021603687 U CN202021603687 U CN 202021603687U CN 212951148 U CN212951148 U CN 212951148U
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- molecular sieve
- sieve adsorption
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Abstract
The utility model discloses an oxygen generation and supply system for a helicopter, which comprises an air inlet device filter, a first compressor, a molecular sieve adsorption tower, an air storage bag and oxygen concentration adjusting equipment; the input end of the first compressor is communicated with the atmosphere through an air inlet device filter, the output end of the first compressor is connected with the input end of a molecular sieve adsorption tower, the molecular sieve adsorption tower is provided with an oxygen output port and a waste gas output port, the oxygen output port of the molecular sieve adsorption tower is connected with an air storage bag, the air storage bag is connected with an oxygen concentration adjusting device, the oxygen concentration adjusting device is connected with the output end of the second compressor, the input end of the second compressor is communicated with the atmosphere through a second compressor air inlet pipe, and an oxygen adjusting valve is arranged on the second compressor air inlet pipe; the oxygen concentration adjusting device is connected with the main oxygen delivery pipeline sequentially through a flow meter, an oxygen concentration sensor, a pressure sensor and a deodorization filter. The system has the advantages of good applicability to design environment, light weight, small volume, convenience in carrying and rapidness in disassembly and assembly.
Description
Technical Field
The utility model belongs to the technical field of the helicopter oxygen suppliment, concretely relates to system oxygen and oxygen system for helicopter.
Background
At present, no system for generating oxygen and supplying oxygen by using a power supply of a helicopter is installed on the helicopter in China, and the helicopter of an individual model adopts two oxygen supply modes such as a high-pressure oxygen cylinder and the like, so that the problems of heavy weight, large volume and high-pressure danger exist. In addition, the defects of oxygen supply by using the oxygen cylinder are prominent under the influence and restriction of the regular pressure detection of the oxygen cylinder, the oxygen filling after use, the shortage of special oxygen production and oxygenation equipment in remote areas and the like. Through investigation and comparison, technologies such as molecular sieve oxygen generation and the like are introduced to a helicopter, the equipment composition is optimized according to the design requirements of sexuality, an oxygen generation and supply system for the helicopter is designed, and oxygen is safely and reliably supplied to transported personnel and helicopter flight personnel.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a safe and reliable's system oxygen and oxygen system for helicopter.
In order to achieve the purpose, the utility model adopts the technical scheme that the oxygen generation and supply system for the helicopter comprises an air inlet device filter, a first compressor, a molecular sieve adsorption tower, an air storage bag and oxygen concentration adjusting equipment; the input end of the first compressor is communicated with the atmosphere through an air inlet device filter, the output end of the first compressor is connected with the input end of a molecular sieve adsorption tower, the molecular sieve adsorption tower is provided with an oxygen output port and a waste gas output port, the oxygen output port of the molecular sieve adsorption tower is connected with an air storage bag, the air storage bag is connected with an oxygen concentration adjusting device, the oxygen concentration adjusting device is connected with the output end of the second compressor, the input end of the second compressor is communicated with the atmosphere through a second compressor air inlet pipe, and an oxygen adjusting valve is arranged on the second compressor air inlet pipe; the oxygen concentration adjusting device is connected with the main oxygen delivery pipeline sequentially through a flow meter, an oxygen concentration sensor, a pressure sensor and a deodorization filter.
Preferably, the oxygen generation and supply system for the helicopter further comprises a programmable controller, a pressure release valve is arranged on the main oxygen delivery pipeline, and the flow meter, the oxygen concentration sensor, the pressure sensor, the oxygen regulating valve and the pressure release valve are electrically connected with the programmable controller.
The molecular sieve adsorption tower comprises two molecular sieve adsorption towers, reversing electromagnetic valves are mounted at the input ends of the molecular sieve adsorption towers, the adsorption and decompression working states of the two molecular sieve adsorption towers are switched through the reversing electromagnetic valves, and the reversing electromagnetic valves are electrically connected with the programmable controller.
Preferably, the oxygen generation and supply system for the helicopter further comprises a display module, wherein the display module collects voltage signals output by the flowmeter, the oxygen concentration sensor and the pressure sensor and the temperature inside the case in real time, and the voltage signals and the temperature are displayed on the liquid crystal screen in real time after being processed.
And a silencer is arranged on the waste gas outlet and is communicated with the outside of the engine room.
The utility model discloses the beneficial effect who produces is: the oxygen generation and supply system for the helicopter takes oxygen absorption of transported personnel and overhead oxygen absorption backup of flying personnel of the helicopter as use objects, integrates the design of molecular sieve oxygen generation technology, oxygen concentration regulation technology, degerming deodorization technology and the like, considers use environment factors and the like, generates oxygen with quality meeting the aviation respiration oxygen standard in GB 8982-; the system has good applicability to the design environment, and has strong applicability to plateaus, plains and high altitudes; the system has light weight, small volume, convenient carrying, convenient assembly and disassembly and assembly and can be used at any time. The oxygen generation and supply system is arranged on the helicopter and the power supply of the helicopter is utilized to generate oxygen.
Drawings
FIG. 1 is a schematic structural view of example 1;
fig. 2 is a schematic workflow diagram of example 1.
Detailed Description
Example 1
An oxygen generation and supply system for a helicopter comprises an air inlet device filter 1, a first compressor 2, a molecular sieve adsorption tower 3, an air storage bag 4 and an oxygen concentration adjusting device 5; the input end of the first compressor 2 is communicated with the atmosphere through an air inlet device filter, the output end of the first compressor 2 is connected with the input end of a molecular sieve adsorption tower, the molecular sieve adsorption tower 3 is provided with an oxygen output port and a waste gas output port, the oxygen output port of the molecular sieve adsorption tower is connected with an air storage bag, the air storage bag 4 is connected with an oxygen concentration adjusting device 5, the oxygen concentration adjusting device 5 is connected with the output end of a second compressor 6, the input end of the second compressor 6 is communicated with the atmosphere through a second compressor air inlet pipe, and an oxygen adjusting valve is arranged on the second compressor air inlet pipe; the oxygen concentration adjusting device is connected with the main oxygen delivery pipeline sequentially through a flow meter, an oxygen concentration sensor, a pressure sensor and a deodorization filter.
The oxygen generation and supply system for the helicopter further comprises a programmable controller, a pressure release valve is arranged on the main oxygen delivery pipeline, and the flow meter, the oxygen concentration sensor, the pressure sensor, the oxygen regulating valve and the pressure release valve are all electrically connected with the programmable controller.
The embodiment realizes the control of the oxygen concentration by a method of mixing oxygen and air. The target value of the oxygen concentration of the oxygen-enriched gas is converted into the oxygen concentration of the oxygen-enriched gas at the moment by monitoring the corresponding pressure value of the helicopter at the altitude and according to the standard of oxygen for human physiology under the pressure, so that the oxygen regulating valve is controlled to accurately control the oxygen concentration.
The molecular sieve adsorption tower comprises two molecular sieve adsorption towers, reversing electromagnetic valves are mounted at the input ends of the molecular sieve adsorption towers, the adsorption and decompression working states of the two molecular sieve adsorption towers are switched through the reversing electromagnetic valves, and the reversing electromagnetic valves are electrically connected with the programmable controller.
Preferably, the oxygen generation and supply system for the helicopter further comprises a display module, wherein the display module collects voltage signals output by the flowmeter, the oxygen concentration sensor and the pressure sensor and the temperature inside the case in real time, and the voltage signals and the temperature are displayed on the liquid crystal screen in real time after being processed.
And a silencer is arranged on the waste gas outlet and is communicated with the outside of the engine room.
On the basis of ensuring that the normal power capacity of a helicopter avionic system and a direct-current power supply system have safety margin, the power supply of a power supply of the helicopter direct-current power supply system is introduced into a power supply of an oxygen generation and supply system, a current overload protector is arranged at the power supply input position of the helicopter direct-current power supply system on a circuit, the total current of the electricity consumption set for the system is controlled through the overload protector, and the use of other equipment on the helicopter is prevented from being influenced by the overhigh current of electric equipment such as an oil-free air compressor and the like.
When the system works, the air outside the machine body enters the air compressor (the first compressor) through the air inlet device with the filter under the air suction effect of the air compressor, at the moment, the air is filtered through the filter of the air inlet device, so that solid particles and partial peculiar smell in the air are filtered, and the quality of the air entering the air compressor is guaranteed; the clean air passing through the filter is supplied to an air compressor for compression and pressurization, the pressurized compressed air enters an oxygen concentrator (molecular sieve adsorption tower) in turn through the switching of an electromagnetic valve, and N is utilized through a Pressure Swing Adsorption (PSA) technology2Dipole moment of molecule greater than O2Cation of molecular sieve adsorbent and N2The effect of dipole moment being greater than O2So that N is2And CO2Moisture, equilibrium adsorption capacity on the adsorbent is higher than O2When pressure exists, the molecular sieve adsorbs more nitrogen atoms; when depressurized, the molecular sieve releases and flushes out the adsorbed nitrogen atoms to restore the separation capacity of oxygen, nitrogen, and the like. The degerming odor-removing filter can filter off the peculiar smell in the oxygen. The molecular sieve adsorption tower in this example is a conventional molecular sieve adsorption tower in the prior art.
Nitrogen, carbon dioxide and the like separated by the molecular sieve are discharged to the outside of the machine body through a discharge pipeline with a silencer, and the silencer reduces exhaust noise to be not more than 69 dB.
Oxygen-enriched gas in the main oxygen delivery pipeline is delivered to respective sealed quick (detachable) joints through pipelines and is delivered to users through an oxygen mask, and the gas supply quantity is adjusted through a flow adjusting valve of the oxygen mask; when the pressure in the oxygen pipeline is higher, the oxygen-enriched gas is discharged outside the molecular sieve tower through the waste gas exhaust pipeline.
Claims (5)
1. An oxygen generation and supply system for a helicopter, characterized in that: comprises an air inlet device filter, a first compressor, a molecular sieve adsorption tower, a gas storage bag and oxygen concentration adjusting equipment; the input end of the first compressor is communicated with the atmosphere through an air inlet device filter, the output end of the first compressor is connected with the input end of a molecular sieve adsorption tower, the molecular sieve adsorption tower is provided with an oxygen output port and a waste gas output port, the oxygen output port of the molecular sieve adsorption tower is connected with an air storage bag, the air storage bag is connected with an oxygen concentration adjusting device, the oxygen concentration adjusting device is connected with the output end of the second compressor, the input end of the second compressor is communicated with the atmosphere through a second compressor air inlet pipe, and an oxygen adjusting valve is arranged on the second compressor air inlet pipe; the oxygen concentration adjusting device is connected with the main oxygen delivery pipeline sequentially through a flow meter, an oxygen concentration sensor, a pressure sensor and a deodorization filter.
2. Oxygen generation and supply system for helicopters according to claim 1, characterized in that: the oxygen concentration sensor, the pressure sensor, the oxygen regulating valve and the pressure relief valve are all electrically connected with the programmable controller.
3. Oxygen generation and supply system for helicopters according to claim 2, characterized in that: the molecular sieve adsorption tower comprises two molecular sieve adsorption towers, reversing electromagnetic valves are mounted at the input ends of the molecular sieve adsorption towers, the adsorption and decompression working states of the two molecular sieve adsorption towers are switched through the reversing electromagnetic valves, and the reversing electromagnetic valves are electrically connected with the programmable controller.
4. Oxygen generation and supply system for helicopters according to claim 1, characterized in that: the display module is used for acquiring voltage signals output by the flowmeter, the oxygen concentration sensor and the pressure sensor and the temperature inside the case in real time, and displaying the voltage signals and the temperature signals on the liquid crystal screen in real time after processing.
5. Oxygen generation and supply system for helicopters according to claim 1, characterized in that: and a silencer is arranged on the waste gas outlet and is communicated with the outside of the engine room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021603687.5U CN212951148U (en) | 2020-08-05 | 2020-08-05 | Oxygen generation and supply system for helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021603687.5U CN212951148U (en) | 2020-08-05 | 2020-08-05 | Oxygen generation and supply system for helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212951148U true CN212951148U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021603687.5U Active CN212951148U (en) | 2020-08-05 | 2020-08-05 | Oxygen generation and supply system for helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212951148U (en) |
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2020
- 2020-08-05 CN CN202021603687.5U patent/CN212951148U/en active Active
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