阅读说明：本技术 一种单相膜机载氧氮分离系统 (Single-phase membrane machine oxygen-carrying nitrogen separation system ) 是由 蒋东升 刘岳 查典 杨启耀 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,涉及一种单相膜机载氧氮分离系统。其特征在于：它包括电控通断阀(1)、过滤器(2)、稳压器(3)、热交换器(4)、加热器(5)、温度传感器(6)、单相陶瓷膜组件(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)、压力传感器(15)、第二单向阀(16)、储气罐(17)、换位阀(18)、混合比调节器(19)、面罩(20)和控制器(21)。本发明提出了一种单相膜机载氧氮分离系统结构,分离出氮气充填油箱,同时分离出的氧气用于飞行员呼吸,结构简单,无运动部件,可靠性高,降低了引气量,有利于资源利用,减少了废气排放,有利于飞机的隐身。(The invention belongs to the air separation technology, and relates to an oxygen and nitrogen carrying separation system of a single-phase membrane machine. The method is characterized in that: the device comprises an electric control on-off valve (1), a filter (2), a voltage stabilizer (3), a heat exchanger (4), a heater (5), a temperature sensor (6), a single-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 pressure sensor (15), a second one-way valve (16), a gas storage tank (17), a transposition valve (18), a mixing ratio regulator (19), a face mask (20) and a controller (21). The invention provides a single-phase membrane machine oxygen-nitrogen-carrying separation system structure, which separates nitrogen to fill an oil tank, simultaneously separates oxygen for the breathing of a pilot, has simple structure, no moving parts and high reliability, reduces the air entraining amount, is beneficial to resource utilization, reduces the exhaust emission and is beneficial to the stealth of an airplane.)

1. The utility model provides a single-phase membrane machine year oxygen nitrogen piece-rate system which characterized in that: the device comprises an electric control on-off valve (1), a filter (2), a voltage stabilizer (3), a heat exchanger (4), a heater (5), a temperature sensor (6), a single-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 pressure sensor (15), a second one-way valve (16), an air storage tank (17), a transposition valve (18), a mixing ratio regulator (19), a face mask (20) and a controller (21); an air inlet end (1a) of the electric control on-off 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 on-off valve (1) is communicated with an air inlet end (2a) of the filter (2) through a pipeline, a control signal input end (1c) of the electric control on-off valve (1) is connected with an electric control on-off valve control signal output end (21a) of the controller (21) through a lead, 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 drain outlet (2c) of the filter (2) is communicated with a blowdown system of the 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 end (4b) of the heat exchanger (4) is communicated with an air outlet end (5a) of the heater (5) through a pipeline, a 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, an air outlet end (5b) of the heater (5) is connected with a temperature sensing end of the temperature sensor (6) in parallel and then is communicated with an air inlet end (7a) of the single-phase ceramic membrane assembly (7) through a pipeline, a 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, a control signal input end (7d) of the single-phase ceramic membrane assembly (7) is connected with a single-phase ceramic membrane assembly control signal output end (21f) of the controller (21) through a lead, an accumulated nitrogen-rich gas outlet end (7b) of the single-phase ceramic membrane assembly (7) is communicated with an air inlet end of the current limiter (8) through a pipeline, an air outlet end of the current limiter (8) and a sampling end of the oxygen concentration sensor (9) are connected with an air inlet end of the first one-way valve (10) through a pipeline in parallel and then are connected with an air inlet end of the first one-way valve (10) through a pipeline The signal output end of the oxygen concentration sensor (9) is connected with the signal input end (21g) of the oxygen concentration sensor of the controller (21) through a lead, the air outlet end of the first one-way valve (10) is communicated with the input end of the first flame suppressor (11) through a pipeline, the output end of the first flame suppressor (11) is communicated with the air inlet end of the 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 the ventilation box (13) through a pipeline, the air outlet end of the ventilation box (13) is communicated with the output end of the second flame suppressor (14) through a pipeline, and the input end of the second flame suppressor (14) is communicated with the atmosphere; an oxygen permeation measurement outlet end (7c) of the single-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 (16) through a pipeline, a gas outlet end of the second one-way valve (16) is communicated with a gas inlet end of a gas storage tank (17) through a pipeline after being connected in parallel with a pressure sensing end of a pressure sensor (15), a signal output end of the pressure sensor (15) is connected with a pressure sensor signal input end (21c) of a controller (21) through a lead, a gas outlet end of the gas storage tank (17) is communicated with a gas inlet end (18a) of a transposition valve (18) through a pipeline, a gas outlet end (18c) of the transposition valve (18) is communicated with the atmosphere, a control signal input end (18d) of the transposition valve (18) is connected with a transposition valve control signal output end (21b) of the controller (21) through a lead, an air outlet end (18b) of the transposition valve (18) is communicated with an oxygen inlet end (19a) of the mixing ratio regulator (19) through a pipeline, an air inlet end (19c) of the mixing ratio regulator (19) is communicated with the atmosphere through a pipeline, a mixed air outlet end (19b) of the mixing ratio regulator (19) is communicated with an air inlet end of the face mask (20) through a pipeline, and air in the face mask (20) is breathed by a person with the face mask.

Technical Field

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

Background

At present, the molecular sieve onboard oxygen generation technology is utilized on an airplane, oxygen is separated from air and used for a pilot to breathe, and nitrogen-rich waste gas is discharged into the atmosphere; by utilizing a hollow fiber membrane airborne nitrogen production technology, nitrogen is separated from air and used for filling an oil tank, so that the fire and explosion prevention are realized, the safety of an airplane is improved, and oxygen-enriched waste gas is discharged into the atmosphere; the two separate oxygen and nitrogen generation systems; the aircraft has the advantages of multiple moving parts, complex structure, low reliability, large volume, high cost, large air-entraining consumption, resource waste of discharged waste gas and unfavorable influence on the stealth of the aircraft due to the discharged waste gas.

Disclosure of Invention

The purpose of the invention is: the single-phase membrane machine oxygen-nitrogen-carrying separation system structure is provided, separated nitrogen gas is filled in an oil tank, and simultaneously separated oxygen gas is used for a pilot to breathe, and the single-phase membrane machine oxygen-nitrogen-carrying separation system structure is simple in structure, free of moving parts, high in reliability, capable of reducing air entraining quantity, beneficial to resource utilization, capable of reducing waste gas emission and beneficial to stealth of an airplane.

The technical scheme of the invention is as follows: the utility model provides a single-phase membrane machine year oxygen nitrogen piece-rate system which characterized in that: the device comprises an electric control on-off valve 1, a filter 2, a voltage stabilizer 3, a heat exchanger 4, a heater 5, a temperature sensor 6, a single-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 pressure sensor 15, a second one-way valve 16, an air storage tank 17, a transposition valve 18, a mixing ratio regulator 19, a face mask 20 and a controller 21; an air inlet end 1a of the electric control on-off 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 on-off valve 1 is communicated with an air inlet end 2a of the filter 2 through a pipeline, a control signal input end 1c of the electric control on-off valve 1 is connected with an electric control on-off valve control signal output end 21a of the controller 21 through a lead, 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 drain outlet 2c of the filter 2 is communicated with a blow-off 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, a 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, 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 a single-phase ceramic membrane component through a pipeline The air inlet end 7a of the temperature sensor 7 is communicated, the signal output end of the temperature sensor 6 is connected with the signal input end 21e of the temperature sensor 21 through a lead, the control signal input end 7d of the single-phase ceramic membrane component 7 is connected with the control signal output end 21f of the single-phase ceramic membrane component of the controller 21 through a lead, the gathered nitrogen-rich air outlet end 7b of the single-phase ceramic membrane component 7 is communicated with the air inlet end of the current limiter 8 through a pipeline, the air outlet end of the current limiter 8 and the sampling end of the oxygen concentration sensor 9 are connected in parallel and then communicated with the air inlet end of the first one-way valve 10 through a pipeline, the signal output end of the oxygen concentration sensor 9 is connected with the signal input end 21g of the oxygen concentration sensor of the controller 21 through a lead, the air outlet end of the first one-way valve 10 is communicated with the input end of the first flame suppressor 11 through a pipeline, the output end of the first flame suppressor 11 is communicated with the air inlet end of the 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 the ventilation tank 13 through a pipeline, the air outlet end of the ventilation tank 13 is communicated with the output end of the 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 single-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 16 through a pipeline, the gas outlet end of the second one-way valve 16 is communicated with the pressure sensing end of the pressure sensor 15 through a pipeline after being connected in parallel, the gas inlet end of the gas storage tank 17 is communicated with the gas inlet end of the gas storage tank 17 through a pipeline, the signal output end of the pressure sensor 15 is connected with the signal input end 21c of the pressure sensor of the controller 21 through a lead wire, the gas outlet end of the gas storage tank 17 is communicated with the gas inlet end 18a of the transposition valve 18 through a pipeline, the atmosphere opening end 18c of the transposition valve 18 is communicated with the atmosphere, the control signal input end 18d of the transposition valve 18 is connected with the transposition valve control signal output end 21b of the controller 21 through a lead wire, the gas outlet end 18b of the transposition valve 18 is communicated with the oxygen inlet end 19a of the mixing ratio regulator 19 through a pipeline, the air inlet end 19c of the mixing ratio regulator 19 is communicated with the atmosphere through a pipeline, the mixed air outlet end 19b of the mixing ratio regulator 19 is communicated with the air inlet end of the face mask 20 through a pipeline, and the air in the face mask 20 is breathed by a person with the face mask.

The invention has the advantages that: the utility model provides a single-phase membrane machine carries oxygen nitrogen piece-rate system structure, separates out nitrogen gas and fills the oil tank, and the oxygen that separates simultaneously is used for the pilot to breathe, simple structure, and no moving part, the reliability is high, has reduced bleed gas volume, is favorable to the utilization of resources, has reduced exhaust emission, is favorable to the stealthy of aircraft.

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 single-phase membrane machine oxygen-carrying nitrogen piece-rate system which characterized in that: the device comprises an electric control on-off valve 1, a filter 2, a voltage stabilizer 3, a heat exchanger 4, a heater 5, a temperature sensor 6, a single-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 pressure sensor 15, a second one-way valve 16, an air storage tank 17, a transposition valve 18, a mixing ratio regulator 19, a face mask 20 and a controller 21; an air inlet end 1a of the electric control on-off 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 on-off valve 1 is communicated with an air inlet end 2a of the filter 2 through a pipeline, a control signal input end 1c of the electric control on-off valve 1 is connected with an electric control on-off valve control signal output end 21a of the controller 21 through a lead, 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 drain outlet 2c of the filter 2 is communicated with a blow-off 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, a 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, 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 a single-phase ceramic membrane component through a pipeline The air inlet end 7a of the temperature sensor 7 is communicated, the signal output end of the temperature sensor 6 is connected with the signal input end 21e of the temperature sensor 21 through a lead, the control signal input end 7d of the single-phase ceramic membrane component 7 is connected with the control signal output end 21f of the single-phase ceramic membrane component of the controller 21 through a lead, the gathered nitrogen-rich air outlet end 7b of the single-phase ceramic membrane component 7 is communicated with the air inlet end of the current limiter 8 through a pipeline, the air outlet end of the current limiter 8 and the sampling end of the oxygen concentration sensor 9 are connected in parallel and then communicated with the air inlet end of the first one-way valve 10 through a pipeline, the signal output end of the oxygen concentration sensor 9 is connected with the signal input end 21g of the oxygen concentration sensor of the controller 21 through a lead, the air outlet end of the first one-way valve 10 is communicated with the input end of the first flame suppressor 11 through a pipeline, the output end of the first flame suppressor 11 is communicated with the air inlet end of the 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 the ventilation tank 13 through a pipeline, the air outlet end of the ventilation tank 13 is communicated with the output end of the 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 single-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 16 through a pipeline, the gas outlet end of the second one-way valve 16 is communicated with the pressure sensing end of the pressure sensor 15 through a pipeline after being connected in parallel, the gas inlet end of the gas storage tank 17 is communicated with the gas inlet end of the gas storage tank 17 through a pipeline, the signal output end of the pressure sensor 15 is connected with the signal input end 21c of the pressure sensor of the controller 21 through a lead wire, the gas outlet end of the gas storage tank 17 is communicated with the gas inlet end 18a of the transposition valve 18 through a pipeline, the atmosphere opening end 18c of the transposition valve 18 is communicated with the atmosphere, the control signal input end 18d of the transposition valve 18 is connected with the transposition valve control signal output end 21b of the controller 21 through a lead wire, the gas outlet end 18b of the transposition valve 18 is communicated with the oxygen inlet end 19a of the mixing ratio regulator 19 through a pipeline, the air inlet end 19c of the mixing ratio regulator 19 is communicated with the atmosphere through a pipeline, the mixed air outlet end 19b of the mixing ratio regulator 19 is communicated with the air inlet end of the face mask 20 through a pipeline, and the air in the face mask 20 is breathed by a person with the face mask.

The working principle of the invention is as follows: the gas that the engine draws is input from inlet end 1a of automatically controlled on-off valve 1, and when the system work, the automatically controlled on-off valve control signal output part 21a of controller 21 sends the instruction, and the control signal input part 1c of automatically controlled on-off valve 1 accepts the opening signal, and automatically controlled on-off valve opens, and gas flows out from outlet end 1b of automatically controlled on-off 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 moisture and the impurity of filtering are discharged from 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 bleed air inlet end 4a of a heat exchanger 4 after being stabilized by the voltage stabilizer 3, the heat exchanger 4 recovers heat of oxygen from a heat exchange air inlet end 4c of a single-phase ceramic membrane component to preheat the gas flowing in from the bleed air inlet end 4a, the preheated gas flows out from the bleed air outlet end 4b of the heat exchanger 4, the bleed air temperature rises, flows into the air inlet end 5a of a heater 5, is heated by the heater and flows out from the air outlet end 5b of the heater 5, a temperature sensor 6 tests the gas temperature, a temperature signal of the gas temperature is sent to a controller 21, and 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 single-phase ceramic membrane component 7, the single-phase ceramic membrane component works at the high temperature of 650-750 ℃, oxygen molecules are ionized on one surface of the pure oxygen ion conduction ceramic membrane to become oxygen ions, the ions are conducted through the membrane, meanwhile, the control signal input end 7d of the single-phase ceramic membrane component 7 receives a signal from the control signal output end 21f of the single-phase ceramic membrane component of the controller 21, the voltage is loaded on the single-phase ceramic membrane component 7, the redundant electrons on the oxygen ions are transferred by the single-phase ceramic membrane component, and the redundant electrons 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 oxygen flows out from an oxygen outlet end 7c of the single-phase ceramic membrane component 7, the nitrogen-rich gas is enriched at a nitrogen-rich gas outlet end 7b and flows out along with the reduction of the oxygen in the bleed air, the nitrogen-rich gas passes through a current limiter 8, the current limiter 8 is used for limiting the flow value, an oxygen concentration sensor 9 is used for testing the oxygen concentration of the nitrogen-rich gas, displaying the oxygen concentration state and outputting a signal through a signal output end of the oxygen concentration sensor 9, a signal input end 21g of an oxygen concentration sensor of a controller 21 receives the signal, the signal is compared with the set oxygen concentration stored in the controller and is output from a single-phase ceramic membrane component control signal output end 21f of the controller 21, a control signal input end 7d of the single-phase ceramic membrane component 7 receives the signal, the voltage of the single-phase ceramic membrane component 7 is controlled, the oxygen concentration of the output gas is controlled, and the requirements of the flow and the oxygen concentration required by the central wing oil tank 12 are met, the first check valve 10 is used for preventing liquid fuel in the central wing oil tank 12 from flowing back to a gas upstream channel to pollute upstream product components, particularly noticing the pollution to 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 to influence the measurement precision and even cause damage. 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 oxygen outlet end 7c of the single-phase ceramic membrane module 7 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 of the heat exchange gas outlet end 4d of the heat exchanger 4 and flows into the second single-phase valve 16, the second one-way valve 16 has the function of preventing the generated oxygen from flowing back into the air storage tank 17 to reduce the pressure of the generated oxygen, the pressure sensor 15 tests the pressure in the air storage tank 17, the transposition valve 18 is used for preventing oxygen from being in overpressure, if the pressure sensor signal input end 21c of the controller 21 receives an overpressure signal sent by the pressure sensor 15, the transposition valve control signal output end 21b of the controller 21 sends out a control signal for cutting off the transposition valve 18, so that the transposition valve 18 is in a cutting-off state, and oxygen is discharged into the atmosphere from the atmosphere opening end 18c of the transposition valve 18. When the pressure tested by the pressure sensor 15 does not exceed the set pressure, the transposition valve 18 is in a conducting state, and the air inlet end 18a is communicated with the air outlet end 18 b; oxygen is introduced into air from an oxygen inlet end 19a of the mixing ratio regulator 19 through an injection mode from an air inlet end 19c of the mixing ratio regulator 19, the air is subjected to pressure reduction and mixing in the mixing ratio regulator 19, a bellows device for sensing the height is integrated in the mixing ratio regulator 19, and formed oxygen-enriched gas flows out from a mixed gas outlet end 19b of the mixing ratio regulator 19 and enters a mask 20 for the breathing of a pilot along with the difference of oxygen concentration of the oxygen-enriched gas formed by mixing different heights.

In one embodiment of the present invention, the electrically controlled on-off 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 pressure sensor 15, and the second check valve 16 are shelf products. The single-phase ceramic membrane module 7 is a pure oxygen ion-conducting single-phase ceramic membrane module.