阅读说明：本技术 一种双相膜机载氧氮分离系统 (Oxygen-nitrogen carrying separation system of double-phase film machine ) 是由 蒋东升 方星星 查典 方继根 于 2021-10-13 设计创作，主要内容包括：本发明属于空气分离技术,涉及一种双相膜机载氧氮分离系统。其特征在于：它包括电控阀(1)、过滤器(2)、稳压器(3)、热交换器(4)、加热器(5)、温度传感器(6)、双相陶瓷膜组件(7)、限流器(8)、氧浓度传感器(9)、第一单向阀(10)、第一火焰抑制器(11)、中央翼油箱(12)、通气箱(13)、第二火焰抑制器(14)、第二单向阀(15)、增压装置(16)、储气罐(17)、压力传感器(18)、混合比调节器(19)、面罩(20)和控制器(21)。本发明提出了一种双相膜机载氧氮分离系统结构,分离出氮气可直接充填油箱,分离出的纯氧无污染,增压后供飞行员呼吸,具有防生化功能,无需备用氧源,减少了维护时间和成本,减少了引气,节约了资源,降低了废气排放,有利于飞机隐身。(The invention belongs to the air separation technology, and relates to an oxygen and nitrogen carrying separation system of a two-phase membrane machine. The method is characterized in that: the device comprises an electric control valve (1), a filter (2), a voltage stabilizer (3), a heat exchanger (4), a heater (5), a temperature sensor (6), a dual-phase ceramic membrane component (7), a current limiter (8), an oxygen concentration sensor (9), a first one-way valve (10), a first flame suppressor (11), a central wing oil tank (12), a ventilation tank (13), a second flame suppressor (14), a second one-way valve (15), a pressurization device (16), a gas storage tank (17), a pressure sensor (18), a mixing ratio regulator (19), a face mask (20) and a controller (21). The invention provides a two-phase membrane machine oxygen-nitrogen-carrying separation system structure, separated nitrogen can directly fill an oil tank, separated pure oxygen is pollution-free, and is supplied to a pilot for breathing after pressurization, the two-phase membrane machine oxygen-nitrogen-carrying separation system structure has a biochemical prevention function, a standby oxygen source is not needed, the maintenance time and cost are reduced, the air entraining is reduced, the resources are saved, the waste gas emission is reduced, and the aircraft stealth is facilitated.)

1. The utility model provides a diphase membrane machine year oxygen nitrogen piece-rate system which characterized in that: the device comprises an electric control valve (1), a filter (2), a voltage stabilizer (3), a heat exchanger (4), a heater (5), a temperature sensor (6), a dual-phase ceramic membrane component (7), a current limiter (8), an oxygen concentration sensor (9), a first one-way valve (10), a first flame suppressor (11), a central wing oil tank (12), a ventilation tank (13), a second flame suppressor (14), a second one-way valve (15), a supercharging device (16), an air storage tank (17), a pressure sensor (18), a mixing ratio regulator (19), a face mask (20) and a controller (21); an air inlet end (1a) of the electric control valve (1) is communicated with an air outlet end of an engine air entraining system through a pipeline, an air outlet end (1b) of the electric control valve (1) is communicated with an air inlet end (2a) of the filter (2) through a pipeline, an air outlet end (2b) of the filter (2) is communicated with an air inlet end of the voltage stabilizer (3) through a pipeline, a sewage discharge port (2c) of the filter (2) is communicated with a sewage discharge system of an airplane through a pipeline, an air outlet end of the voltage stabilizer (3) is communicated with an air entraining air inlet end (4a) of the heat exchanger (4) through a pipeline, an air entraining air outlet end (4b) of the heat exchanger (4) is communicated with an air inlet end (5a) of the heater (5) through a pipeline, an air outlet end (5b) of the heater (5) and a temperature sensing end of the temperature sensor (6) are connected in parallel and then communicated with an air inlet end (7a) of the biphase ceramic membrane component (7) through a pipeline, an outlet end (7b) of the gathered nitrogen-rich gas of the two-phase ceramic membrane component (7) is communicated with an inlet end of a flow restrictor (8) through a pipeline, an outlet end of the flow restrictor (8) is connected with a sampling end of an oxygen concentration sensor (9) in parallel and then communicated with an inlet end of a first one-way valve (10) through a pipeline, an outlet end of the first one-way valve (10) is communicated with an input end of a first flame suppressor (11) through a pipeline, an output end of the first flame suppressor (11) is communicated with an inlet end of a central wing oil tank (12) through a pipeline, an outlet end of the central wing oil tank (12) is communicated with an inlet end of a ventilation tank (13) through a pipeline, an outlet end of the ventilation tank (13) is communicated with an output end of a second flame suppressor (14) through a pipeline, and an input end of the second flame suppressor (14) is communicated with the atmosphere; an oxygen permeation measurement outlet end (7c) of the dual-phase ceramic membrane component (7) is communicated with a heat exchange gas inlet end (4c) of the heat exchanger (4) through a pipeline, a heat exchange gas outlet end (4d) of the heat exchanger (4) is communicated with a gas inlet end of a second one-way valve (15) through a pipeline, a gas outlet end of the second one-way valve (15) is communicated with a gas inlet end (16a) of a pressure boosting device (16) through a pipeline, a gas outlet end (16b) of the pressure boosting device (16) is communicated with a gas inlet end of a gas storage tank (17) through a pipeline, a gas outlet end of the gas storage tank (17) is communicated with an oxygen gas inlet end (19a) of a mixing ratio regulator (19) through a pipeline after being connected in parallel with a pressure sensing end of a pressure sensor (18), an air gas inlet end (19c) of the mixing ratio regulator (19) is communicated with the atmosphere through a pipeline, a gas mixing gas outlet end (19b) of the mixing ratio regulator (19) is communicated with a gas inlet end of a mask (20) through a pipeline, the gas in the mask (20) is used for breathing of the person with the mask; a control signal input end (1c) of the electric control valve (1) is connected with an electric control valve control signal output end (21a) of a controller (21) through a lead, a signal output end of a pressure sensor (18) is connected with a pressure sensor signal input end (21b) of the controller (21) through a lead, a control signal input end (16c) of a pressure boosting device (16) is connected with a pressure boosting device control signal output end (21c) of the controller (21) through a lead, a control signal input end (5c) of a heater (5) is connected with a heater control signal output end (21d) of the controller (21) through a lead, a signal output end of a temperature sensor (6) is connected with a temperature sensor signal input end (21e) of the controller (21) through a lead, and a signal output end of an oxygen concentration sensor (9) is connected with an oxygen concentration sensor signal input end (21f) of the controller (21) through a lead.

Technical Field

The invention belongs to the air separation technology, and relates to an oxygen and nitrogen carrying separation system of a two-phase membrane machine.

Background

At present, a hollow fiber membrane machine-carried nitrogen making technology is utilized on an airplane, nitrogen is separated from air and used for filling an oil tank, fire and explosion are prevented, the safety of the airplane is improved, and oxygen-enriched waste gas is discharged into the atmosphere; separating oxygen from air for pilot's breathing by using molecular sieve airborne oxygen generation technology, and discharging nitrogen-rich waste gas into the atmosphere; the two separate oxygen and nitrogen generation systems; the respective waste gas of make full use of does not have, and the bleed consumption is big, and the extravagant resource of exhaust waste gas discharges waste gas and is unfavorable for the stealthy of aircraft, and the oxygen that molecular sieve system oxygen generated does not have biochemical function of preventing simultaneously, through polluting the area, and system oxygen system need stop work to pass through, need to join in marriage on the machine and carry reserve oxygen source.

Disclosure of Invention

The purpose of the invention is: the utility model provides a diphase membrane machine carries oxygen nitrogen piece-rate system structure, separates out nitrogen gas and can directly fill the oil tank, and the pure oxygen of separation is pollution-free, supplies the pilot to breathe after the pressure boost, has biochemical function of preventing, need not reserve oxygen source, reduces maintenance time and cost, reduces bleed, resources are saved reduces exhaust emission, is favorable to the stealthy of aircraft.

The technical scheme of the invention is as follows: the utility model provides a diphase membrane machine year oxygen nitrogen piece-rate system which characterized in that: the device comprises an electric control valve 1, a filter 2, a voltage stabilizer 3, a heat exchanger 4, a heater 5, a temperature sensor 6, a two-phase ceramic membrane component 7, a current limiter 8, an oxygen concentration sensor 9, a first one-way valve 10, a first flame suppressor 11, a central wing oil tank 12, a breather tank 13, a second flame suppressor 14, a second one-way valve 15, a supercharging device 16, an air storage tank 17, a pressure sensor 18, a mixing ratio regulator 19, a face mask 20 and a controller 21; an air inlet end 1a of the electric control valve 1 is communicated with an air outlet end of an engine air entraining system through a pipeline, an air outlet end 1b of the electric control valve 1 is communicated with an air inlet end 2a of a filter 2 through a pipeline, an air outlet end 2b of the filter 2 is communicated with an air inlet end of a voltage stabilizer 3 through a pipeline, a drain outlet 2c of the filter 2 is communicated with a blow-down system of an airplane through a pipeline, an air outlet end of the voltage stabilizer 3 is communicated with an air entraining air inlet end 4a of a heat exchanger 4 through a pipeline, an air entraining air outlet end 4b of the heat exchanger 4 is communicated with an air inlet end 5a of a heater 5 through a pipeline, an air outlet end 5b of the heater 5 and a temperature sensing end of a temperature sensor 6 are communicated with an air inlet end 7a of a biphase ceramic membrane component 7 through a pipeline after being connected in parallel, an accumulated nitrogen-rich air outlet end 7b of the biphase ceramic membrane component 7 is communicated with an air inlet end of a flow restrictor 8 through a pipeline, an air outlet end of the flow restrictor 8 and an air sampling end of an oxygen concentration sensor 9 are connected in parallel and then connected with an air inlet end of a first one-way valve 10 through a pipeline The air outlet end of the first one-way valve 10 is communicated with the input end of a first flame suppressor 11 through a pipeline, the output end of the first flame suppressor 11 is communicated with the air inlet end of a central wing oil tank 12 through a pipeline, the air outlet end of the central wing oil tank 12 is communicated with the air inlet end of a ventilation tank 13 through a pipeline, the air outlet end of the ventilation tank 13 is communicated with the output end of a second flame suppressor 14 through a pipeline, and the input end of the second flame suppressor 14 is communicated with the atmosphere; the permeation oxygen measurement outlet end 7c of the dual-phase ceramic membrane component 7 is communicated with the heat exchange gas inlet end 4c of the heat exchanger 4 through a pipeline, the heat exchange gas outlet end 4d of the heat exchanger 4 is communicated with the gas inlet end of the second one-way valve 15 through a pipeline, the gas outlet end of the second one-way valve 15 is communicated with the gas inlet end 16a of the supercharging device 16 through a pipeline, the gas outlet end 16b of the supercharging device 16 is communicated with the gas inlet end of the gas storage tank 17 through a pipeline, the gas outlet end of the gas storage tank 17 and the pressure sensing end of the pressure sensor 18 are connected in parallel and then communicated with the oxygen gas inlet end 19a of the mixing ratio regulator 19 through a pipeline, the air gas inlet end 19c of the mixing ratio regulator 19 is communicated with the atmosphere through a pipeline, the mixed gas outlet end 19b of the mixing ratio regulator 19 is communicated with the gas inlet end of the face mask 20 through a pipeline, and the gas in the face mask 20 is used for the person with the face mask to breathe; the control signal input end 1c of the electric control valve 1 is connected with an electric control valve control signal output end 21a of the controller 21 through a lead, the signal output end of the pressure sensor 18 is connected with a pressure sensor signal input end 21b of the controller 21 through a lead, the control signal input end 16c of the pressure increasing device 16 is connected with a pressure increasing device control signal output end 21c of the controller 21 through a lead, the control signal input end 5c of the heater 5 is connected with a heater control signal output end 21d of the controller 21 through a lead, the signal output end of the temperature sensor 6 is connected with a temperature sensor signal input end 21e of the controller 21 through a lead, and the signal output end of the oxygen concentration sensor 9 is connected with an oxygen concentration sensor signal input end 21f of the controller 21 through a lead.

The invention has the advantages that: the utility model provides a diphase membrane machine carries oxygen nitrogen piece-rate system structure, the nitrogen gas of separating can directly fill the oil tank, and the pure oxygen of separating is pollution-free, supplies the pilot to breathe after the pressure boost, has biochemical function of preventing, need not reserve oxygen source, has reduced maintenance time and cost, has reduced bleed, has practiced thrift the resource, has reduced exhaust emission, is favorable to the aircraft stealthy.

Drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Detailed Description

The present invention is described in further detail below. Referring to fig. 1, a two-phase membrane machine oxygen-nitrogen carrying separation system is characterized in that: the device comprises an electric control valve 1, a filter 2, a voltage stabilizer 3, a heat exchanger 4, a heater 5, a temperature sensor 6, a two-phase ceramic membrane component 7, a current limiter 8, an oxygen concentration sensor 9, a first one-way valve 10, a first flame suppressor 11, a central wing oil tank 12, a breather tank 13, a second flame suppressor 14, a second one-way valve 15, a supercharging device 16, an air storage tank 17, a pressure sensor 18, a mixing ratio regulator 19, a face mask 20 and a controller 21; an air inlet end 1a of the electric control valve 1 is communicated with an air outlet end of an engine air entraining system through a pipeline, an air outlet end 1b of the electric control valve 1 is communicated with an air inlet end 2a of a filter 2 through a pipeline, an air outlet end 2b of the filter 2 is communicated with an air inlet end of a voltage stabilizer 3 through a pipeline, a drain outlet 2c of the filter 2 is communicated with a blow-down system of an airplane through a pipeline, an air outlet end of the voltage stabilizer 3 is communicated with an air entraining air inlet end 4a of a heat exchanger 4 through a pipeline, an air entraining air outlet end 4b of the heat exchanger 4 is communicated with an air inlet end 5a of a heater 5 through a pipeline, an air outlet end 5b of the heater 5 and a temperature sensing end of a temperature sensor 6 are communicated with an air inlet end 7a of a biphase ceramic membrane component 7 through a pipeline after being connected in parallel, an accumulated nitrogen-rich air outlet end 7b of the biphase ceramic membrane component 7 is communicated with an air inlet end of a flow restrictor 8 through a pipeline, an air outlet end of the flow restrictor 8 and an air sampling end of an oxygen concentration sensor 9 are connected in parallel and then connected with an air inlet end of a first one-way valve 10 through a pipeline The air outlet end of the first one-way valve 10 is communicated with the input end of a first flame suppressor 11 through a pipeline, the output end of the first flame suppressor 11 is communicated with the air inlet end of a central wing oil tank 12 through a pipeline, the air outlet end of the central wing oil tank 12 is communicated with the air inlet end of a ventilation tank 13 through a pipeline, the air outlet end of the ventilation tank 13 is communicated with the output end of a second flame suppressor 14 through a pipeline, and the input end of the second flame suppressor 14 is communicated with the atmosphere; the permeation oxygen measurement outlet end 7c of the dual-phase ceramic membrane component 7 is communicated with the heat exchange gas inlet end 4c of the heat exchanger 4 through a pipeline, the heat exchange gas outlet end 4d of the heat exchanger 4 is communicated with the gas inlet end of the second one-way valve 15 through a pipeline, the gas outlet end of the second one-way valve 15 is communicated with the gas inlet end 16a of the supercharging device 16 through a pipeline, the gas outlet end 16b of the supercharging device 16 is communicated with the gas inlet end of the gas storage tank 17 through a pipeline, the gas outlet end of the gas storage tank 17 and the pressure sensing end of the pressure sensor 18 are connected in parallel and then communicated with the oxygen gas inlet end 19a of the mixing ratio regulator 19 through a pipeline, the air gas inlet end 19c of the mixing ratio regulator 19 is communicated with the atmosphere through a pipeline, the mixed gas outlet end 19b of the mixing ratio regulator 19 is communicated with the gas inlet end of the face mask 20 through a pipeline, and the gas in the face mask 20 is used for the person with the face mask to breathe; the control signal input end 1c of the electric control valve 1 is connected with an electric control valve control signal output end 21a of the controller 21 through a lead, the signal output end of the pressure sensor 18 is connected with a pressure sensor signal input end 21b of the controller 21 through a lead, the control signal input end 16c of the pressure increasing device 16 is connected with a pressure increasing device control signal output end 21c of the controller 21 through a lead, the control signal input end 5c of the heater 5 is connected with a heater control signal output end 21d of the controller 21 through a lead, the signal output end of the temperature sensor 6 is connected with a temperature sensor signal input end 21e of the controller 21 through a lead, and the signal output end of the oxygen concentration sensor 9 is connected with an oxygen concentration sensor signal input end 21f of the controller 21 through a lead.

The working principle of the invention is as follows: the gas that the engine draws is input from inlet end 1a of automatically controlled valve 1, and when the system work, the automatically controlled valve control signal output part 21a of controller 21 sends the instruction, and the control signal input part 1c of automatically controlled valve 1 accepts opening signal, and the automatically controlled valve is opened, and gas flows out from outlet end 1b of automatically controlled valve 1, flows in from inlet end 2a of filter 2, and filter 2 is used for filtering moisture and the impurity in the bleed air, and the moisture and the impurity thing of filtering are discharged from the drain 2c mouth of filter 2. Filtered gas flows into an air inlet end of a voltage stabilizer 3 from an air outlet end 2b of a filter 2 through a pipeline, the gas flows into a heat exchanger 4 from an air introducing air inlet end 4a of the heat exchanger 4 after being stabilized by the voltage stabilizer 3, the heat exchanger 4 recovers heat of oxygen entering a heat exchanging air inlet end 4c of the heat exchanger 4 from an oxygen permeation measurement outlet end 7c of a dual-phase ceramic membrane assembly 7, preheated gas flows out from the air introducing air outlet end 4b of the heat exchanger 4, the temperature of the introduced gas rises, the introduced gas flows into a heater 5 from an air inlet end 5a of the heater 5, the introduced gas flows out from an air outlet end 5b of the heater 5 after being heated by the heater, a temperature sensor 6 tests the temperature of the gas, a temperature signal of the gas is sent to a controller 21, a temperature signal input end 21e of the controller 21 receives the temperature signal and then sends a control signal from a heater control signal output end 21d of the controller 21 by comparing with a set temperature stored in the controller, the heating state of the heater is controlled by inputting a control signal input terminal 5c of the heater 5. Gas with proper temperature and pressure flows in from the gas inlet end 7a of the double-phase ceramic membrane component 7, the double-phase ceramic membrane component works at the high temperature of 750-900 ℃, oxygen molecules are ionized on one surface of the mixed oxygen ion-electron conduction double-phase ceramic membrane to become oxygen ions, the ions are conducted through the membrane, meanwhile, redundant electrons on the oxygen ions are driven by the oxygen partial pressure to reversely migrate, and the oxygen molecules are reduced to oxygen molecules on the other surface of the ceramic membrane to generate pure oxygen gas. Molecules and ions of harmful gases cannot permeate through the ceramic membrane, so that the ceramic membrane has a biochemical prevention function. The generated pure oxygen flows out from the permeation oxygen measurement outlet end 7c of the dual-phase ceramic membrane module 7; the generated nitrogen-rich gas flows out from the nitrogen-rich gas outlet end 7b and passes through the flow restrictor 8, and the flow restrictor 8 is used for limiting the flow value. The flow value is limited through the flow restrictor 8, the output oxygen concentration of the nitrogen-rich gas separated by the two-phase ceramic membrane component 7 is a predicted interval value, the oxygen concentration sensor 9 is used for testing the oxygen concentration of the nitrogen-rich gas and displaying the oxygen concentration state, the system matches the output flow value through the aperture and inlet pressure of the flow restrictor 8 and controls the oxygen concentration of the output gas so as to meet the requirements of flow and oxygen concentration required by the central wing oil tank 12, the first check valve 10 has the function of preventing liquid fuel oil in the central wing oil tank 12 from flowing back to a gas upstream channel and polluting upstream product parts, and particularly, the measurement accuracy is influenced by pollution on the oxygen concentration sensor 9, and the oxygen concentration sensor 9 based on the principles of electrochemistry, ultrasonic waves, zirconium oxide and the like is polluted and even damaged. The flame arrester 11 and the flame arrester 14 function to prevent flame from being brought into the center wing fuel tank 12; oxygen flowing out of the permeation oxygen gas outlet end 7c of the two-phase ceramic membrane module 7 has high oxygen purity, the oxygen concentration reaches more than 99%, the pressure of pure oxygen measured by permeation is low and cannot meet the requirement of oxygen supply pressure, the oxygen flows in from the heat exchange gas inlet end 4c of the heat exchanger 4, heat in the generated oxygen exchanges heat with cold bleed air in the heat exchanger 4, the oxygen flows out from the heat exchange gas outlet end 4d of the heat exchanger 4 and flows into the second single-phase valve 15, the second one-way valve 15 is used for preventing generated oxygen from flowing back, the pressure is reduced, the oxygen flowing out of the second one-way valve 15 enters the supercharging device 16 for supercharging, the supercharging device 16 is used for increasing the pressure of the generated pure oxygen, the supercharged pure oxygen enters the air storage tank 17, the pure oxygen flowing out of the air storage tank 17 is tested by the pressure sensor 18, when the tested pressure is transmitted to the controller 21 by a lead, if the tested pressure exceeds the pressure set by the controller 21, the control signal output end 21c of the supercharging device of the controller 21 transmits a signal from the control signal input end 16c of the supercharging device 16 to the supercharging device 16, the supercharging device 16 stops working until the pressure tested by the pressure sensor 18 is lower than the set pressure, and the supercharging device 16 is controlled to start working; oxygen is introduced into air from an oxygen inlet end 19a of the mixing ratio regulator 19 through an air inlet end 19c of the mixing ratio regulator 19 in an injection mode, and is subjected to pressure reduction and mixing in the mixing ratio regulator 19 to form oxygen-enriched gas which flows out from a mixed gas outlet end 19b of the mixing ratio regulator 19 and enters a mask 20 for breathing of a pilot.

In one embodiment of the present invention, the electric control valve 1, the filter 2, the pressure stabilizer 3, the heat exchanger 4, the heater 5, the temperature sensor 6, the flow restrictor 8, the oxygen concentration sensor 9, the first check valve 10, the second check valve 15, the air storage tank 17, and the pressure sensor 18 are shelf products. The biphasic ceramic membrane module 7 is a mixed oxygen ion-electron conducting ceramic membrane module.