CN110841210B - Electric control type centralized oxygen system - Google Patents
Electric control type centralized oxygen system Download PDFInfo
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- CN110841210B CN110841210B CN201910971248.5A CN201910971248A CN110841210B CN 110841210 B CN110841210 B CN 110841210B CN 201910971248 A CN201910971248 A CN 201910971248A CN 110841210 B CN110841210 B CN 110841210B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/14—Respiratory apparatus for high-altitude aircraft
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Abstract
The invention belongs to the technical field of airplane oxygen system design, and relates to an electric control type centralized oxygen system, which comprises: the oxygen charging device comprises an oxygen charging panel (1), a pressure release valve (2), an oxygen cylinder assembly (3) and an oxygen control box (4); the oxygenation panel (1) is connected with the oxygen bottle assembly (3) through an oxygenation pipeline and is used for being butted with ground oxygenation equipment to oxygenate an airplane oxygen system; the pressure release valve (2) is connected with the oxygen cylinder assembly (3) through a pressure release pipeline; the oxygen cylinder assembly (3) is used for conveying oxygen to the unit and passengers through an oxygen control box (4) connected to the oxygen conveying pipeline; the problem of current oxygen cylinder subassembly can not oxygenate under quick-witted is solved, the capillary processing difficulty that traditional oxygen system manometer used has been solved, yielding, rupture, the problem of jam to sign is seen unclear on the oxygen control box when having solved the flight night. The invention can meet the oxygen demand of the passengers on the airplane and simultaneously improve the design quality of the airplane.
Description
Technical Field
The invention belongs to the design technology of an aircraft oxygen system, and relates to an electric control type centralized oxygen system.
Background
A mechanical control steel rope control mode is adopted in a certain type original oxygen system, in the actual operation process, when the oxygen source opening or closing operation is found, the actual operation is very difficult, the control force of a control handle is large, and the movement synchronism of two rotating wheels for controlling the oxygen source to open or close is poor. When the operating handle is placed at the opening position, one oxygen source switch is opened, and the other oxygen source switch is not opened; when the operating handle is placed in the off position, one oxygen source switch is already off and the other is not. The oxygen source can be opened or closed only by walking to the vicinity of the oxygen source through people and manually operating, but because the oxygen source is arranged at the rear part of the machine body, and the installation position of the oxygen source is far away from the cockpit, the oxygen system which cannot meet the requirements of airworthiness provisions needs to have the function that a driver can quickly open or close the oxygen source.
In addition, still stipulate in the airworthiness clause, the oxygen system needs to possess the device that the driver easily observes the surplus oxygen supplementation volume of oxygen system, certain type former oxygen system adopts mechanical type manometer, the manometer is installed at the cockpit, the oxygen source is installed at the fuselage rear portion, connect through using the capillary between manometer and the oxygen source, oxygen pressure in the oxygen cylinder conducts through the capillary and carries out pressure display on the manometer in the cockpit, but because capillary length is longer (about 5 meters), the pipe diameter is thinner (diameter 3 millimeters), the processing is difficult, easily receive other system influences in the installation, the installation need occupy the installation space on the machine, the periphery can not have the interferent, there is yielding, the rupture, jam, the problem of leakage, it is very inconvenient.
In the process of assembling the oxygen system, the installation stress exists between the interior trimming plate and the pipeline connected with the oxygen supply connector, and the interior trimming plate deforms under the action of the stress, so that a large gap exists when the interior trimming plate is installed. During the oxygen system carries out flight test in the external field, discover that the navigation airport does not have the ability of oxygenating, the former oxygen system of certain type machine does not have under-machine oxygenation ability yet, can not pull down the oxygen cylinder to oxygenate at the station, oxygenate and can only pass through the oxygen cylinder butt joint, use high-pressure oxygen bottle and on-machine oxygen connector to be connected, until two pressure balance, and, because the navigation airport does not have supercharging equipment, in order to reach 13 Mpa's rated oxygenation pressure, usually need a plurality of ground oxygen bottles can reach 13 Mpa's rated oxygenation pressure, it is inconvenient to maintain.
Disclosure of Invention
The purpose of the invention is: the utility model provides an oxygen system is concentrated to automatically controlled formula, the purpose is that the oxygen source of solving current oxygen system cuts off the difficulty problem long-rangely, solves the oxygen cylinder subassembly and can not oxygenate the problem under the machine, solves the capillary processing difficulty that traditional oxygen system pressure gauge used, yielding, rupture, the problem of jam, when solving the flight at night, the sign is seen unclear problem on the oxygen control box.
In order to solve the technical problem, the technical scheme of the invention is as follows:
an electronically controlled centralized oxygen system, comprising: the oxygen charging panel 1, the pressure release valve 2, the oxygen cylinder component 3 and the oxygen control box 4;
the oxygenation panel 1 is connected with the oxygen bottle assembly 3 through an oxygenation pipeline and is used for being butted with ground oxygenation equipment to oxygenate an airplane oxygen system;
the pressure release valve 2 is connected with the oxygen cylinder assembly 3 through a pressure release pipeline;
the oxygen cylinder component 3 is used for conveying oxygen for the unit and passengers through an oxygen control box 4 connected with an oxygen conveying pipeline; the tail end of the oxygen delivery pipeline is provided with an oxygen supply connector 20;
the oxygen control box 4 controls the oxygen bottle component 3 to be opened, closed and displayed through a cable.
The oxygenation panel 1 comprises an oxygenation joint 1a, a pressure gauge 1b and a mounting plate 1 c; the oxygen charging connector 1a and the pressure gauge 1b are fixed on the mounting plate 1c, and the mounting plate 1c is fixed on the machine body. The pressure gauge 1b is used for providing an oxygenation display for ground staff, and the ground staff can observe the oxygen pressure in the oxygen cylinder in real time in the oxygenation process.
The oxygen cylinder component 3 comprises a pressure reducer 3a, an oxygen source shutoff valve 3b, a pressure sensor 3c, a high-pressure safety valve 3d, a low-pressure safety valve 3e, a gas cylinder oxygenation port 3f and a cylinder body 3 g; an oxygen source shutoff valve 3b, a pressure sensor 3c, a high-pressure safety valve 3d, a low-pressure safety valve 3e and a gas cylinder oxygen charging port 3f are installed on a pressure reducer 3a, and the pressure reducer 3a is installed on a bottle body 3g.
The pressure release valve 2 is installed on the machine body and is connected with a high-pressure safety valve 3d on the oxygen cylinder component 3 through a pressure release pipeline and a pressure release three-way joint.
The oxygen control box 4 comprises an oxygen source switch 4a, a primary driver oxygen jack 4b, a secondary driver oxygen jack 4f, a passenger oxygen switch 4c, a passenger oxygen flow indicator 4e and an oxygen source pressure display 4g which are fixed on the box body of the oxygen control box 4; the on-board power supply 5 is communicated with the oxygen control box 4 and divided into three paths: one path is communicated with an oxygen source switch 4a, the other path is communicated with a flow sensor 4h, and the other path is communicated with a pressure sensor 3 c; the oxygen source switch 4a controls the opening and closing of the oxygen source shutoff valve 3 b; the passenger oxygen flow indicator 4e is communicated with the flow sensor 4h through a cable and is used for indicating the flow of passenger oxygen; the oxygen source pressure display 4g is communicated with the pressure sensor 3c through a cable and is used for receiving the pressure information in the oxygen cylinder fed back by the pressure sensor 3 c; the oxygen jack 4b of the front driver, the oxygen jack 4f of the secondary driver and the oxygen switch 4c for the passenger are connected with the front end of the oxygen delivery pipeline of the oxygen cylinder component 3; the flow sensor 4h is installed on the oxygen supply line between the passenger oxygen switch 4c and the oxygen supply mouthpiece 20.
The oxygen source switch 4a is connected with the oxygen source shutoff valve 3b through a cable.
Preferably, the end of the oxygen delivery line is connected to the oxygen nozzle 20 by a hose.
Preferably, the pressure relief valve 2 is provided with a pressure relief indicating sign for indicating whether the oxygen system is depressurized. Once the oxygen cylinder component 3 generates a pressure relief event, the indicating label on the pressure relief valve 2 pops up and falls off, and the ground staff judges whether the oxygen cylinder component is subjected to pressure relief or not by observing the working state of the pressure relief valve 2;
preferably, the oxygen source shutoff valve 3b is normally closed.
Preferably, the onboard power supply 5 communicates with the oxygen control box 4 through an oxygen control box cable plug 4l.
Preferably, the oxygenation pipeline and the oxygen delivery pipeline are made of copper pipes; the pressure relief pipeline is made of a rubber hose.
The oxygen control box 4 adopts a light guide plate on the surface provided with a switch and a display button. Can have the night vision light guide function.
The invention has the beneficial effects that: the oxygen system is concentrated to automatically controlled formula has solved the long-range difficult problem that cuts off of some type machine oxygen system oxygen source, solves the oxygen cylinder subassembly and can not oxygenate the problem under the machine, solves the capillary processing difficulty that traditional oxygen system manometer used, yielding, rupture, the problem of jam, and the sign is not clear on the oxygen control box when solving night flight problem of appearing, solves the problem that interior plaque takes place to warp under oxygen pipeline stress effect installation stress. The invention improves the design capability of the traditional oxygen system, meets the oxygen demand of passengers on the airplane and simultaneously improves the design quality of the airplane.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiment of the present invention will be briefly explained. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic view of an installation structure of an electronically controlled centralized oxygen system according to the present invention;
FIG. 2 is a schematic diagram of the structure of an oxygen control box;
FIG. 3 is a schematic diagram of an oxygen cylinder assembly;
in the figure, 1, an oxygenation panel 1a, an oxygenation joint 1b, a pressure gauge 1c, a mounting plate 2, a pressure relief valve 3, an oxygen cylinder assembly 3a, a pressure reducer 3b, an oxygen source shutoff valve 3c, a pressure sensor 3d, a high-pressure safety valve 3e, a low-pressure safety valve 3f, a gas cylinder oxygenation port 3g, a bottle body 4, an oxygen control box 4a, an oxygen source switch 4b, a driver oxygen jack 4c, a passenger oxygen switch 4d, a first oxygen delivery pipeline 4e, a passenger oxygen indicator 4f, a driver oxygen jack 4g, an oxygen source pressure display 4h, a flow sensor 4i, a second oxygen delivery pipeline 4j, a third oxygen delivery pipeline 4l, an oxygen control box cable plug 4m, a fourth oxygen delivery pipeline 4n, a cross joint 4o, a fifth oxygen delivery pipeline 4p, a sixth oxygen delivery pipeline 4q, a first cable 4r, a second cable 4s, a third cable 4t, a fourth cable 5, an onboard power supply 6, a fifth cable 8, a sixth cable 8, a The seventh oxygen pipeline 9, the eighth oxygen pipeline 10, the first pressure relief pipeline 11, the pressure relief three-way joint 12, the second pressure relief pipeline 13, the third pressure relief pipeline 14, the first oxygen charging pipeline 15, the oxygen charging three-way joint 16, the second oxygen charging pipeline 17, the third oxygen charging pipeline 18, the oxygen transmission three-way joint 19, the ninth oxygen pipeline 20, the oxygen supply connector 21 and the oxygen supply hose.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Features of various aspects of embodiments of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. The following description of the embodiments is merely intended to better understand the present invention by illustrating examples thereof. The present invention is not limited to any particular arrangement or method provided below, but rather covers all product structures, any modifications, alterations, etc. of the method covered without departing from the spirit of the invention.
In the drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring the present invention. Fig. 1 shows a schematic structural diagram of an electrically controlled centralized oxygen system of the present invention, wherein the oxygen cylinder assembly 3 is composed of two oxygen cylinders, and the installation structure of the electrically controlled centralized oxygen system is composed of an oxygenation panel 1, a pressure release valve 2, the oxygen cylinder assembly 3, an oxygen control box 4, oxygenation pipelines 14, 16, 17, oxygen delivery pipelines 8, 9, 19, pressure release pipelines 10, 12, 13, three- way joints 11, 15, 18, an oxygen supply connector 20, and cables.
The module structure and the working principle of the invention are described as follows:
in one layout form of the oxygenation panel 1 shown in fig. 2, the oxygenation panel 1 is composed of an oxygenation joint 1a, a pressure gauge 1b and a mounting plate 1 c; each oxygen cylinder in the oxygen cylinder assembly 3 consists of a pressure reducer 3a, a normally closed oxygen source shutoff valve 3b, a pressure sensor 3c, a high-pressure safety valve 3d, a low-pressure safety valve 3e, a gas cylinder oxygen charging port 3f and a bottle body 3 g; the oxygen control box consists of an oxygen source switch 4a, oxygen jacks 4b and 4f for a primary driver and a secondary driver, an oxygen switch 4c for passengers, an oxygen flow indicator 4e for passengers, an oxygen source pressure display 4g and oxygen conveying pipelines 4d, 4i, 4j, 4m, 4o and 4p.
The oxygenation panel 1 is fixed on the airplane through screws and is connected with the oxygen bottle assembly 3 through oxygenation pipelines 14, 16 and 17 and an oxygenation tee joint 15. The oxygenation joint 1a on the oxygenation panel is used for being butted with ground oxygenation equipment to oxygenate an airplane oxygen system; the pressure gauge 1b is used for providing an oxygenation display for ground staff, and the ground staff can observe the oxygen pressure in the oxygen cylinder in real time in the oxygenation process.
The oxygen cylinder component 3 is provided with a pressure reducer 3a which has the function of reducing the pressure of high-pressure oxygen in the oxygen cylinder into low-pressure oxygen specified by an inlet of an oxygen mask, the oxygen pressure in the oxygen cylinder of a certain airplane is 0-13 Mpa in practice, and the oxygen pressure after the pressure reducer reduces the pressure is 0.3-0.6 Mpa. A normally closed oxygen source shutoff valve 3b is installed on an oxygen supply outlet of the oxygen bottle assembly 3, and the oxygen bottle assembly 3 can be used for oxygen charging on the machine and under the machine. When the oxygen is charged on the airplane, the airplane is specified to be in a power-off state, and the oxygen source shutoff valve 3b is closed when the power is off; when oxygenating under the aircraft, normally closed oxygen source shutoff valve 3b cuts off the power supply and closes, and ground service personnel transport near oxygenating station to oxygenate after pulling down the oxygen cylinder subassembly, and on the aircraft was reassembled to the oxygen system oxygen suppliment function recovered, the oxygen charging difficulty problem of trying to fly in the field of solution after oxygenating the completion to the oxygenation of oxygenating. In addition, the oxygen supply port has no oxygen output in the power-off state, and the normally closed oxygen source shutoff valve can rapidly cut off the oxygen source under the condition that the fire disaster happens to the airplane, so that the burning explosion of the ignition area is prevented, and the safety of the airplane is protected. Install oxygen source pressure sensor 3c on the oxygen cylinder subassembly, this sensor carries the oxygen pressure value in the oxygen cylinder to the anterior oxygen source pressure display of oxygen control box in the cockpit and shows on 4g, but the surplus oxygen storage volume in the driver's real time monitoring oxygen cylinder.
All electrical control functions of the oxygen system are integrated on the oxygen control box 4, and the light guide plate is arranged on the control box, so that the electrical system of a certain type machine only needs to provide power input for the oxygen control box 4. The oxygen control box 4 is arranged on a central control console in the cockpit, an oxygen source pressure display 4g, an oxygen source switch 4a, a passenger oxygen control switch 4c, a passenger oxygen flow indicator 4e, a positive driver oxygen jack 4b and a secondary driver oxygen jack 4f of the oxygen system are integrated on the oxygen control box, and the oxygen control box adopts an electric control mode. The oxygen source switch 4a is connected with an oxygen source shutoff valve 3b on the oxygen bottle component 3 through a third cable 4s and a fifth cable 6, the third cable 4s is a power supply input circuit, and the fifth cable 6 is an execution circuit; the passenger uses the oxygen current indicator 4e to connect with flow sensor 4h through the second cable 4r, fourth 4t, the second cable 4r is the input of the power input circuit, the fourth cable 4t is the feedback circuit of the signal; the oxygen source pressure display 4g is connected with a pressure sensor 3c on the oxygen cylinder component 3 through a first cable 4q and a sixth cable 7, the first cable 4q is a power supply input circuit, and the sixth cable 7 is a signal feedback circuit; the light guide plate on the oxygen control box has a night vision light guide function, and all oxygen marks on the panel are clearly visible at night. The oxygen system only needs to connect the on-board power supply 5 with the cable plug 4l of the oxygen control box for power supply. When the onboard oxygen system needs to be used, the oxygen system breaker is switched on, at the moment, the oxygen source switch 4a, the oxygen flow indicator 4e for passengers, the flow sensor 4h, the oxygen source pressure display 4g, the normally closed oxygen source shutoff valve 3b and the pressure sensor 3c immediately enter a working state, at the moment, the oxygen source pressure display 4g of the oxygen control box 4 is provided with an oxygen source pressure indication, and the passengers are extinguished by the oxygen flow indicator 4e. The oxygen switch 4c for the passenger is turned on, the oxygen flow indicator 4e for the passenger is still turned off, the oxygen jacks 4b and 4f for the primary and secondary drivers do not have oxygen output, and the oxygen connector for the passenger does not have oxygen output; the oxygen source switch 4a is pressed, after the oxygen jacks 4b and 4f of the primary and secondary drivers are connected with the mask, the mask outputs oxygen, the oxygen connector 20 of the passenger outputs no oxygen, and the oxygen flow indicator 4e of the passenger is still turned off; after the oxygen switch 4c for the passenger is turned on and the oxygen nozzle 20 for the passenger is connected with the mask, the mask outputs oxygen, and the passenger is lighted by the oxygen indicator 4e.
The oxygen source pressure display 4g functions to transmit the oxygen source pressure sensed by the oxygen source pressure sensor on the oxygen cylinder assembly to the oxygen source pressure display to provide an oxygen source pressure indication for the driver. The oxygen source switch 4a has the function of controlling the on/off of an oxygen source, the oxygen source of the oxygen system adopts a normally closed design, when the oxygen is needed to be used, a driver manually presses the oxygen source switch 4a, and after the oxygen source switch is pressed, an oxygen source switch indicator lamp is turned on to remind the driver that the oxygen source is opened, so that the oxygen system can be used; when oxygen is not needed to be used, a driver manually presses the oxygen source switch 4a, and the oxygen source indicator lamp is turned off after the driver presses the oxygen source switch to remind the driver that the oxygen source is turned off. The oxygen jack of the primary and secondary driver is installed on the oxygen control box, when oxygen is needed, the oxygen mask is inserted into the oxygen jack to provide oxygen for the driver, and under the condition that the oxygen source switch is turned on, the oxygen jacks 4b and 4f of the primary and secondary driver on the oxygen control box 4 are always communicated with the oxygen source. The oxygen switch 4c is used to the passenger's function is whether to be the passenger oxygen suppliment by the driver selection, according to the terms of the applicable navigation requirement, when the aircraft meets emergency, when the onboard oxygen storage volume is not enough, in order to guarantee the safety of aircraft, must be the driver oxygen suppliment by priority, at this moment, close the passenger oxygen suppliment switch by the driver, close the back, passenger cabin passenger oxygen suppliment jack does not have the oxygen output, only the positive co-pilot oxygen jack on the oxygen control box 4 has the oxygen output. The passenger oxygen flow indicator 4e functions to provide the driver with an indication of whether the passenger is using oxygen, and an oxygen flow sensor is mounted in the oxygen line in the control box and transmits a captured oxygen flow signal to a flow indicator display for indicating to the driver whether the passenger oxygen system is flowing oxygen, and the flow indicator display does not display a flow value.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (8)
1. An electrically controlled concentrated oxygen system, comprising: the electrically controlled concentrated oxygen system comprises: the oxygen charging device comprises an oxygen charging panel (1), a pressure release valve (2), an oxygen cylinder assembly (3) and an oxygen control box (4);
the oxygenation panel (1) is connected with the oxygen bottle assembly (3) through an oxygenation pipeline and is used for being butted with ground oxygenation equipment to oxygenate an airplane oxygen system;
the pressure release valve (2) is connected with the oxygen cylinder assembly (3) through a pressure release pipeline;
the oxygen cylinder assembly (3) is used for conveying oxygen to the unit and passengers through an oxygen control box (4) connected to the oxygen conveying pipeline; the tail end of the oxygen delivery pipeline is provided with an oxygen supply connector (20);
the oxygen control box (4) controls the oxygen bottle component (3) to be opened, closed and displayed through a cable;
the oxygen control box (4) comprises an oxygen source switch (4a) fixed on the box body of the oxygen control box (4), a driver oxygen jack, a passenger oxygen switch (4c), a passenger oxygen flow indicator (4e) and an oxygen source pressure display (4 g); the on-board power supply (5) is communicated with the oxygen control box (4) and is divided into three paths: one path is communicated with an oxygen source switch (4a), the other path is communicated with a flow sensor (4h), and the other path is communicated with a pressure sensor (3 c); the oxygen source switch (4a) is connected with the oxygen source shutoff valve (3b) through a cable and controls the oxygen source shutoff valve (3b) to be opened and closed; the passenger oxygen flow indicator (4e) is communicated with the flow sensor (4h) through a cable and is used for indicating the flow of passenger oxygen; the oxygen source pressure display (4g) is communicated with the pressure sensor (3c) through a cable and is used for receiving the pressure information in the oxygen cylinder fed back by the pressure sensor (3 c); the oxygen jack of the driver and the oxygen switch (4c) for the passenger are connected with the front end of the oxygen delivery pipeline of the oxygen cylinder component (3); the flow sensor (4h) is arranged on the oxygen delivery pipeline and is positioned between the oxygen switch (4c) for passengers and the oxygen supply nozzle (20);
the oxygen cylinder assembly (3) comprises a pressure reducer (3a), an oxygen source shutoff valve (3b), a pressure sensor (3c), a high-pressure safety valve (3d), a low-pressure safety valve (3e), a gas cylinder oxygenation port (3f) and a bottle body (3 g); an oxygen source shutoff valve (3b), a pressure sensor (3c), a high-pressure safety valve (3d), a low-pressure safety valve (3e) and a gas cylinder oxygenation port (3f) are arranged on a pressure reducer (3a), and the pressure reducer (3a) is arranged on a bottle body (3 g).
2. The electronically controlled concentrated oxygen system of claim 1, wherein: the oxygenation panel (1) comprises an oxygenation joint (1a), a pressure gauge (1b) and a mounting plate (1 c); the oxygen charging connector (1a) and the pressure gauge (1b) are fixed on the mounting plate (1c), and the mounting plate (1c) is fixed on the machine body.
3. The electronically controlled concentrated oxygen system of claim 1, wherein: the pressure release valve (2) is installed on the machine body and is connected with a high-pressure safety valve (3d) on the oxygen cylinder component (3) through a pressure release pipeline and a pressure release three-way joint.
4. The electronically controlled concentrated oxygen system of claim 1, wherein: and a pressure relief indicating sign for indicating whether the oxygen system is subjected to pressure relief or not is designed on the pressure relief valve (2).
5. The electronically controlled concentrated oxygen system of claim 1, wherein: the oxygen source shutoff valve (3b) is normally closed.
6. The electronically controlled concentrated oxygen system of claim 1, wherein: the onboard power supply (5) is communicated with the oxygen control box (4) through an oxygen control box cable plug (4 l).
7. The electronically controlled concentrated oxygen system of claim 1, wherein: the oxygen control box (4) adopts a light guide plate on the surface provided with the switch and the display button.
8. The electronically controlled concentrated oxygen system of claim 1, wherein: the tail end of the oxygen delivery pipeline is connected with an oxygen supply nozzle (20) through a hose; the oxygenation pipeline and the oxygen delivery pipeline are made of copper pipes; the pressure relief pipeline is made of a rubber hose.
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| CN201910971248.5A CN110841210B (en) | 2019-10-12 | 2019-10-12 | Electric control type centralized oxygen system |
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| CN201910971248.5A CN110841210B (en) | 2019-10-12 | 2019-10-12 | Electric control type centralized oxygen system |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2474885A (en) * | 2009-10-30 | 2011-05-04 | Honeywell Uk Ltd | A breathing gas system for an aircraft having emergency and auxiliary gas supplies |
| CN102900462B (en) * | 2012-10-24 | 2014-12-31 | 中船重工（西安）东仪矿用安全装备有限公司 | Oxygen supply pipe for controlling compressed oxygen in cabin |
| CN103499449B (en) * | 2013-09-27 | 2015-08-19 | 北京航空航天大学 | vacuum plume effect experiment system oxygen system |
| CN205626766U (en) * | 2016-05-06 | 2016-10-12 | 合肥江航飞机装备有限公司 | Novel oxygen suppliment regulator |
| CN107376144B (en) * | 2017-07-28 | 2020-04-03 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Closed breathing system for integral inert gas protection welding workshop |
| CN108744191A (en) * | 2018-05-11 | 2018-11-06 | 北京航天控制仪器研究所 | A kind of medical connection unit and modularization oxygen supply unit used under the conditions of aviation |
| CN209180674U (en) * | 2018-12-13 | 2019-07-30 | 郑州市啸鹰航空有限公司 | A kind of flivver outfield oxygenation pipeline and interface |
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