CN209166767U - The test device of aircraft oxygen mask - Google Patents
The test device of aircraft oxygen mask Download PDFInfo
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- CN209166767U CN209166767U CN201920019299.3U CN201920019299U CN209166767U CN 209166767 U CN209166767 U CN 209166767U CN 201920019299 U CN201920019299 U CN 201920019299U CN 209166767 U CN209166767 U CN 209166767U
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Abstract
The utility model relates to a kind of test devices of aircraft oxygen mask, it is mainly made of test gas circuit and test cavity, test the gas supply part of connection oxygen mask on the left of cavity, the respiratory cavity of right side connection mask, the specific setting sequence of the gas circuit is as follows: being divided into the first branch and second branch after hand reducing pressure valve and filter I from the gas of gas source, it is that oxygen mask supplies and pressure transmitter I is utilized to measure supply gas pressure that the first branch enters test chamber body after proportional pressure-reducing valve；Second branch successively enters test chamber body after electromagnetic valve I, filter II, flow controller I, check valve I, simulated lung and electromagnetic valve II.The test device of the utility model can satisfy the functional test of the oxygen mask of different model.The use of flow controller can maximally reduce the problem due to manually adjusting flow difficulty bring inefficiency and flow adjusting inaccuracy.
Description
Technical field
The utility model relates to aircraft maintenance fields, relate more specifically to a kind of test device of aircraft oxygen mask.
Background technique
Aircraft oxygen mask provides the side that the oxygen that breathing needs can be transferred to from storage tank human lung
Method, for protecting the safety of persons on board to play an important role.Oxygen mask is by an elongated rubber oxygen supplying tube
It is connected on automatic coupling with bayonet coupling, oxygen continuously flows in the gas-storing bag of mask, the gas storage of gas-storing bag elder generation, then swell
When can accommodate a certain amount of oxygen, when user's depth air-breathing is emptied gas-storing bag, the air inlet valve on mask can make oxygen
Into.
Performance test of the test of oxygen mask mainly to aircraft oxygen mask, including leakage test, interior test leakage are tried, are exhaled
The test of air valve flow resistance, the test of inlet valve flow resistance, the test of automatic pressure of inspiration(Pi), compensation expiration valve test and height oxygen compensate concentration
Test etc..Existing oxygen mask test gas circuit flow adjusts difficulty, and testing efficiency is too low.
Utility model content
The utility model proposes a kind of test dress of aircraft oxygen mask for problem above existing in the prior art
It sets.
The technical solution of the utility model are as follows:
A kind of test device of aircraft oxygen mask is mainly made of test gas circuit and test cavity, and test cavity is left
Side connects the gas supply part of oxygen mask, and right side connects the respiratory cavity of mask, and the specific setting sequence of the gas circuit is as follows: coming from
It is divided into the first branch and second branch after hand reducing pressure valve and filter I in the gas of gas source, the first branch passes through ratio
Entering test chamber body after pressure reducing valve is that oxygen mask supplies and pressure transmitter I is utilized to measure supply gas pressure；Second branch is successive
Enter test chamber body after electromagnetic valve I, filter II, flow controller I, check valve I, simulated lung and electromagnetic valve II.
It is wherein additionally provided with for measuring the pressure transmitter inside oxygen mask with the pressure difference of environment.
It is wherein additionally provided with the pressure transmitter for measuring vacuum loop pressure, on the one hand in order to simulate the air-breathing shape of people
State, vacuum loop can out of oxygen mask draw gas；On the other hand, the oxygen mask in order to test under high altitude conditions
Can, vacuum loop can provide subnormal ambient, simulated altitude environment for vacuum chamber.
It wherein further include the gas circuit for carrying out height oxygen compensation concentration determination, the gas circuit is from test cavity via shut-off valve
I, vacuum proportional pressure-reducing valve, vacuum pressure switch, ball valve, vacuum buffer tank, solenoid valve are connected to vacuum pump, in oxygen mask
Gas, by the electromagnetic valve II, the simulated lung, check valve II, the filter II, the flow controller I, check valve
Then III is equally discharged by the vacuum pump, wherein required gas flow can be controlled by the flow controller I.
Wherein further include the gas circuit for carrying out inside and outside test leakage examination, the gas circuit from test cavity via flow controller II,
Electromagnetic valve II I, shut-off valve II be connected to for carry out height oxygen compensation concentration determination gas circuit in vacuum proportional pressure-reducing valve with
In gas circuit between ball valve.
It wherein further include sampling pump, sampling pump is connected in the gas circuit between check valve I and check valve III, after sampling pump
Face connects suspended body flowmeter and oxygen analyzer.
The test device of the utility model can satisfy the functional test of the oxygen mask of different model.Flow controller
Using can maximally reduce and adjust asking for inaccuracy due to manually adjusting flow difficulty bring inefficiency and flow
Topic.
Detailed description of the invention
In order to be easier to understand the technical solution of the utility model and beneficial technical effect, by referring to showing in the accompanying drawings
The application is described in detail in specific embodiment of the present utility model out.The attached drawing depicts only the allusion quotation of the application
Type embodiment does not constitute the limitation to the protection scope of the application, in which:
Fig. 1 is the gas circuit structure schematic diagram of the test device of an embodiment according to the present utility model.
Specific embodiment
As shown in Figure 1, the test device of the utility model mainly tests gas circuit and test cavity composition, test cavity left side
The gas supply part of oxygen mask is connected, right side connects the respiratory cavity of mask.Gas source enters system from hand reducing pressure valve 1, passes through
It is divided into two-way after filter 2, test cavity is entered by proportional pressure-reducing valve 3 all the way, is supplied for oxygen mask, which passes through pressure
Power transmitter 7 measures supply gas pressure；Another way passes through solenoid valve 4, filter 20, flow controller 18, check valve 16, simulated lung
15, solenoid valve 12, subsequently into test cavity, the road is for compensating expiration valve test.
Pressure transmitter 8 is used to measure the pressure of test cavity, and differential pressure transmitter 5 is for measuring oxygen mask inside and ring
The pressure difference of the pressure difference in border, pressure transmitter 6 are used to measure the pressure of vacuum loop, on the one hand in order to simulate the air-breathing shape of people
State, vacuum loop can out of oxygen mask draw gas；On the other hand, the oxygen mask in order to test under high altitude conditions
Can, vacuum loop can provide subnormal ambient, simulated altitude environment for vacuum chamber.
When carrying out inside and outside test leakage examination, gas is tested by flowmeter 11, and solenoid valve 10 is opened at this time.It is high when carrying out
When spending oxygen compensation concentration determination, vacuum pump 28 is opened, and the gas in test chamber passes through solenoid valve 9, vacuum proportional dump valve 13, true
Empty pressure switch 24, solenoid valve 27, is then discharged via vacuum pump 28 ball valve 25, and the pressure in test chamber passes through vacuum ratio
Pressure regulator valve 13 is set up.Gas in oxygen mask, by solenoid valve 12, simulated lung 15, check valve 19, filter 20, stream
Amount controller 18, check valve 17, are then equally discharged by vacuum pump 28, wherein gas flow needed for the step can be by flow
Controller 18 is controlled.
When carrying out oxygen concentration test, the sample gas in pipeline is extracted by sampling pump 21 and carries out oxygen concentration determination, behind sampling pump
Connect suspended body flowmeter 22 and oxygen analyzer 23.
The utility model can be embodied in the form of other are specific, but without departing from the protection model of the utility model
It encloses, the protection scope of the utility model is defined only by the following claims.
Claims (6)
1. a kind of test device of aircraft oxygen mask is mainly made of test gas circuit and test cavity, on the left of test cavity
The gas supply part of oxygen mask is connected, right side connects the respiratory cavity of mask, and the specific setting sequence of the gas circuit is as follows: from
The gas of gas source is divided into the first branch and second branch after hand reducing pressure valve and filter I, and the first branch subtracts by ratio
Entering test chamber body after pressure valve is that oxygen mask supplies and pressure transmitter I is utilized to measure supply gas pressure；Second branch successively passes through
Enter test chamber body after crossing electromagnetic valve I, filter II, flow controller I, check valve I, simulated lung and electromagnetic valve II.
2. test device according to claim 1, wherein being additionally provided with for measuring the pressure inside oxygen mask with environment
The pressure transmitter of difference.
3. test device according to claim 2, wherein being additionally provided with the pressure transmitter for measuring vacuum loop pressure.
4. test device according to claim 3, wherein further include the gas circuit for carrying out height oxygen compensation concentration determination,
The gas circuit is from test cavity via shut-off valve I, vacuum proportional pressure-reducing valve, vacuum pressure switch, ball valve, vacuum buffer tank, electromagnetism
Valve is connected to vacuum pump, the gas in oxygen mask, by the electromagnetic valve II, the simulated lung, check valve II, the filtering
Device II, the flow controller I, check valve III, are then equally discharged by the vacuum pump, wherein required gas flow can
It is controlled by the flow controller I.
5. test device according to claim 4, wherein further include the gas circuit for carrying out inside and outside test leakage examination, the gas circuit from
Test cavity is connected to via flow controller II, electromagnetic valve II I, shut-off valve II for carrying out height oxygen compensation concentration determination
On vacuum proportional pressure-reducing valve in gas circuit and the gas circuit between ball valve.
6. test device according to claim 4 or 5, wherein further including sampling pump, sampling pump is connected to check valve I and list
To in the gas circuit between valve III, suspended body flowmeter and oxygen analyzer are connected behind sampling pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920019299.3U CN209166767U (en) | 2019-01-07 | 2019-01-07 | The test device of aircraft oxygen mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920019299.3U CN209166767U (en) | 2019-01-07 | 2019-01-07 | The test device of aircraft oxygen mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209166767U true CN209166767U (en) | 2019-07-26 |
Family
ID=67328246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920019299.3U Active CN209166767U (en) | 2019-01-07 | 2019-01-07 | The test device of aircraft oxygen mask |
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| CN (1) | CN209166767U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641728A (en) * | 2019-09-03 | 2020-01-03 | 合肥江航飞机装备股份有限公司 | Performance detection equipment for aircraft oxygen system |
| CN113567095A (en) * | 2021-06-07 | 2021-10-29 | 中国船舶重工集团公司第七一八研究所 | Oxygen mask oxygen supply performance test device for airplane |
| CN116650259A (en) * | 2023-06-08 | 2023-08-29 | 中国人民解放军总医院第六医学中心 | Micro-resistance oxygen inhalation system for hyperbaric oxygen chamber |
-
2019
- 2019-01-07 CN CN201920019299.3U patent/CN209166767U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641728A (en) * | 2019-09-03 | 2020-01-03 | 合肥江航飞机装备股份有限公司 | Performance detection equipment for aircraft oxygen system |
| CN110641728B (en) * | 2019-09-03 | 2023-09-01 | 合肥江航飞机装备股份有限公司 | Aircraft oxygen system performance detection equipment |
| CN113567095A (en) * | 2021-06-07 | 2021-10-29 | 中国船舶重工集团公司第七一八研究所 | Oxygen mask oxygen supply performance test device for airplane |
| CN113567095B (en) * | 2021-06-07 | 2023-09-08 | 中国船舶重工集团公司第七一八研究所 | Oxygen supply performance test device of oxygen mask for airplane |
| CN116650259A (en) * | 2023-06-08 | 2023-08-29 | 中国人民解放军总医院第六医学中心 | Micro-resistance oxygen inhalation system for hyperbaric oxygen chamber |
| CN116650259B (en) * | 2023-06-08 | 2024-01-16 | 中国人民解放军总医院第六医学中心 | Micro-resistance oxygen inhalation system for hyperbaric oxygen chamber |
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