CN215573630U - Unit oxygen mask regulator testing arrangement - Google Patents
Unit oxygen mask regulator testing arrangement Download PDFInfo
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- CN215573630U CN215573630U CN202122322410.6U CN202122322410U CN215573630U CN 215573630 U CN215573630 U CN 215573630U CN 202122322410 U CN202122322410 U CN 202122322410U CN 215573630 U CN215573630 U CN 215573630U
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- oxygen
- regulator
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Abstract
The utility model discloses a testing device for a unit oxygen mask regulator, which comprises a sealing adapter, wherein a first pipeline communicated with the oxygen mask regulator through a hose is arranged above the sealing adapter, an oxygen bottle is arranged at one end of the first pipeline, an oxygen pressure gauge is arranged on the first pipeline, a second pipeline communicated with the inside of the sealing adapter is arranged on the sealing adapter, a first vacuum source, a second vacuum source, a differential pressure gauge and an oxygen concentration gauge are arranged at one end of the second pipeline through a first connecting pipeline, a gas flowmeter is arranged on the first connecting pipeline communicated with the first vacuum source, a pressurizing gas source communicated with the first connecting pipeline through a second connecting pipeline is arranged on the first connecting pipeline communicated with the first vacuum source, and an internal leakage flowmeter is arranged on the first connecting pipeline communicated with the second vacuum source. The utility model can conveniently realize the function test of the oxygen mask regulator of various component numbers, greatly shorten the period and ensure the maintenance quality.
Description
Technical Field
The utility model belongs to the technical field of maintenance of aviation equipment, and particularly relates to a testing device for a unit oxygen mask regulator.
Background
Novel unit oxygen mask regulator is the equipment that often uses on the aircraft of mesh, and it has increased the automatic function of diluting of oxygen, can be automatically according to the altitude that locates under normal mode, dilutes the oxygen that the aircraft provided, can increase the effective live time of oxygen on the aircraft. Current unit oxygen mask regulator testing arrangement mainly wears the face guard through the people's face, feels through breathing, and the inspection result is inaccurate, and can't satisfy the automatic functional test requirement that dilutes of novel unit oxygen mask regulator oxygen, leads to the unable assurance of unit oxygen mask regulator quality, and then influences the flight safety of aircraft.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a testing device for a unit oxygen mask regulator, which is convenient to operate, can conveniently realize the function test of the unit oxygen mask regulators with various component numbers, greatly shortens the period and ensures the maintenance quality.
The technical scheme adopted by the utility model is as follows: a testing device for an oxygen mask regulator of a unit comprises a sealing adapter for fixing the oxygen mask regulator, wherein a first pipeline communicated with the oxygen mask regulator through a hose is arranged above the sealing adapter, an oxygen cylinder communicated with the first pipeline is arranged at one end, far away from the hose, of the first pipeline, an oxygen pressure gauge communicated with the first pipeline is arranged on the first pipeline, a second pipeline communicated with the inside of the sealing adapter is arranged at the bottom of the sealing adapter, a first vacuum source, a second vacuum source, a differential pressure gauge and an oxygen concentration gauge communicated with the second pipeline are sequentially arranged at one end, far away from the sealing adapter, of the second pipeline through a first connecting pipeline, a gas flow meter is arranged on the first connecting pipeline communicated with the first vacuum source, a pressurizing gas source communicated with the first vacuum source through a second connecting pipeline is arranged at a position between the gas flow meter and the first vacuum source on the first connecting pipeline communicated with the first vacuum source, an internal leakage flowmeter is arranged on the first connecting pipeline communicated with the second vacuum source.
In one embodiment, the hose is connected to the first pipeline through a hose connector.
In one embodiment, an oxygen regulator is arranged on the first pipeline at a position between the oxygen cylinder and the oxygen pressure gauge.
In one embodiment, a three-way reversing valve is arranged on the first pipeline between the oxygen pressure gauge and the hose connector.
In one embodiment, the first pipeline is provided with a third connecting pipeline, one end of the third connecting pipeline is communicated with the three-way reversing valve, the other end of the third connecting pipeline is communicated with the first pipeline, and the third connecting pipeline is provided with a total leakage flow meter.
In one embodiment, a vacuum source regulator is arranged on the first connecting pipeline communicated with the first vacuum source between the gas flow meter and the first vacuum source.
In one embodiment, an internal leakage regulator is arranged on the first connecting pipeline communicated with the second vacuum source and between the internal leakage flow meter and the second vacuum source.
In one embodiment, a pressurized air source regulator is arranged on the second connecting pipeline.
The utility model has the beneficial effects that: the function test of the oxygen mask regulator of the machine set with various component numbers can be conveniently realized, the period is greatly shortened, and the maintenance quality is ensured.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1. an oxygen cylinder; 2. an oxygen regulator; 3. an oxygen manometer; 4. a first pipeline; 5. a total leakage flow meter; 6. a three-way reversing valve; 7. a hose connector; 8. an oxygen mask regulator; 9. a sealing adapter; 10. a second pipeline; 11. a gas flow meter; 12. an internal leakage flow meter; 13. a differential pressure gauge; 14. an oxygen concentration table; 15. a pressurized air source regulator; 16. a vacuum source regulator; 17. an internal leakage regulator; 18. a pressurized gas source; 19. a first vacuum source; 20. a second vacuum source; 21. a hose; 22. a first connecting line; 23. a second connecting line; 24. and a third connecting pipeline.
Detailed Description
The utility model will be described in further detail with reference to the following drawings and specific embodiments.
Example 1:
as shown in fig. 1, a testing device for a unit oxygen mask regulator comprises a sealing adapter 9 for fixing an oxygen mask regulator 8, a first pipeline 4 communicated with the oxygen mask regulator 8 through a hose 21 is arranged above the sealing adapter 9, an oxygen cylinder 1 communicated with the first pipeline 4 is arranged at one end, far away from the hose 21, of the first pipeline 4, an oxygen pressure gauge 3 communicated with the first pipeline 4 is arranged on the first pipeline 4, a second pipeline 10 communicated with the inside of the sealing adapter 9 is arranged at the bottom of the sealing adapter 9, a first vacuum source 19, a second vacuum source 20, a pressure difference gauge 13 and an oxygen concentration gauge 14 communicated with the second pipeline 10 are sequentially arranged at one end, far away from the sealing adapter 9, of the second pipeline 10 through a first connecting pipeline 22, a gas flow meter 11 is arranged on the first connecting pipeline 22 communicated with the first vacuum source 19, and a second connecting pipeline is arranged at a position, between the gas flow meter 11 and the first vacuum source 19, on the first connecting pipeline 22 communicated with the first vacuum source 19 The connecting pipeline 23 is communicated with the pressurization gas source 18, and the first connecting pipeline 22 communicated with the second vacuum source 20 is provided with the internal leakage flow meter 12.
Example 2:
as shown in fig. 1, in the above embodiment, the hose 21 is connected to the first pipeline 4 through the hose connector 7.
Example 3:
as shown in fig. 1, in addition to the above embodiment, an oxygen regulator 2 is provided in the first pipe 4 at a position between the oxygen cylinder 1 and the oxygen pressure gauge 3.
Example 4:
as shown in fig. 1, in the above embodiment, a three-way reversing valve 6 is provided on the first pipeline 4 between the oxygen pressure gauge 3 and the hose connector 7.
Example 5:
as shown in fig. 1, on the basis of the above embodiment, a third connecting pipeline 24 is provided on the first pipeline 4, wherein one end of the third connecting pipeline is communicated with the three-way reversing valve 6, and the other end of the third connecting pipeline is communicated with the first pipeline 4, and a total leakage flow meter 5 is provided on the third connecting pipeline 24.
Example 6:
as shown in fig. 1, in addition to the above-described embodiment, a vacuum source regulator 16 is provided on the first connection pipe 22 communicating with the first vacuum source 19 between the gas flow meter 11 and the first vacuum source 19.
Example 7:
as shown in fig. 1, in the above embodiment, an internal leakage regulator 17 is provided on the first connection pipe 22 communicating with the second vacuum source 20 between the internal leakage flow meter 12 and the second vacuum source 20.
Example 8:
as shown in fig. 1, on the basis of the above-mentioned embodiment, a pressurized air source regulator 15 is provided on the second connecting pipeline 23.
When the testing device works, the following testing modes are adopted:
1. the three-way reversing valve 6 is opened, the hose 21 and the first pipeline 4 are communicated, the oxygen regulator 2 is closed, the indication of the pressure difference meter 13 is adjusted to a specified value by rotating a hand wheel of the internal leakage regulator 17, and whether the oxygen mask regulator 8 is tested to have leakage or not is displayed by the internal leakage flow meter 12.
2. Adjusting the air supply pressure to a specified value according to the indication of the oxygen pressure gauge 3, then rotating a hand wheel of the vacuum source regulator 16 to adjust the indication of the gas flow meter 11 to the specified value, and testing the oxygen concentration of the oxygen mask regulator 8 through the display of the oxygen concentration meter 14; in this case, the oxygen concentration of the oxygen mask regulator 8 is not less than 98.4%.
3. Setting the oxygen mask regulator 8 to an emergency working mode, then regulating the air supply pressure to a specified value according to the indication of the oxygen pressure gauge 3, and testing the oxygen concentration of the oxygen mask regulator 8 through the display of the oxygen concentration meter 14; in this mode, the oxygen mask regulator 8 has an oxygen concentration of not less than 98.4%.
4. Setting the oxygen mask regulator 8 to a standard working mode, adjusting the air supply pressure to a specified value according to the indication of the oxygen pressure gauge 3, rotating a hand wheel of the vacuum source regulator 16 to adjust the indication of the gas flow meter 11 to the specified value, and testing the oxygen concentration of the oxygen mask regulator 8 through the display of the oxygen concentration meter 14; in this mode, the oxygen mask regulator 8 has an oxygen concentration of not less than 21.1%.
5. The supply pressure is adjusted to a specified value according to the instruction of the oxygen pressure gauge 3, then the hand wheel of the pressurization gas source regulator 15 is rotated to adjust the instruction of the gas flow meter 11 to a specified value, and whether the oxygen supply of the oxygen mask regulator 8 has obvious inhalation and exhalation pressures is tested by checking the display of the pressure difference meter 13.
In the testing device, the oxygen cylinder 1 is used for providing an oxygen source for the whole testing device to use. The first vacuum source 19 provides a high vacuum pressure for gas flow of the gas meter 11 up to 0-100 LPM. The second vacuum source 19 provides a low vacuum gas pressure for gas flows up to 0-200SCCM requirements of the internal leakage flow meter 12. Pressurized air supply 18 is used to provide pressurization for leak testing. In the testing process, the bypass of the three-way reversing valve 6 is opened, and the total leakage of the testing device can be tested through the total leakage flowmeter 5.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. The utility model provides a unit oxygen mask regulator testing arrangement, includes the sealed adapter that is used for fixed oxygen mask regulator which characterized in that: a first pipeline communicated with the oxygen mask regulator through a hose is arranged above the sealing adapter, an oxygen bottle communicated with the first pipeline is arranged at one end of the first pipeline far away from the hose, an oxygen pressure gauge communicated with the first pipeline is arranged on the first pipeline, a second pipeline communicated with the inside of the sealing adapter is arranged at the bottom of the sealing adapter, a first vacuum source, a second vacuum source, a differential pressure gauge and an oxygen concentration gauge communicated with the second pipeline are sequentially arranged at one end of the second pipeline, which is far away from the sealing adapter, through a first connecting pipeline, the gas flowmeter is arranged on the first connecting pipeline communicated with the first vacuum source, a pressurizing gas source communicated with the first vacuum source through a second connecting pipeline is arranged at a position between the gas flowmeter and the first vacuum source on the first connecting pipeline communicated with the first vacuum source, and an internal leakage flowmeter is arranged on the first connecting pipeline communicated with the second vacuum source.
2. The unit oxygen mask regulator testing device of claim 1, wherein: the hose is connected with the first pipeline through a hose connector.
3. The unit oxygen mask regulator testing device of claim 2, wherein: an oxygen regulator is arranged on the first pipeline between the oxygen cylinder and the oxygen pressure gauge.
4. A unit oxygen mask regulator testing device as defined in claim 3 wherein: and a three-way reversing valve is arranged at a position between the oxygen pressure gauge and the hose connector on the first pipeline.
5. The unit oxygen mask regulator testing device of claim 4, wherein: and a third connecting pipeline is arranged on the first pipeline, wherein one end of the third connecting pipeline is communicated with the three-way reversing valve, and the other end of the third connecting pipeline is communicated with the first pipeline, and a total leakage flow meter is arranged on the third connecting pipeline.
6. A unit oxygen mask regulator testing device according to claim 1 or 2, wherein: and a vacuum source regulator is arranged between the gas flowmeter and the first vacuum source on the first connecting pipeline communicated with the first vacuum source.
7. The unit oxygen mask regulator testing device of claim 6, wherein: an inner leakage regulator is arranged between the inner leakage flowmeter and the second vacuum source on the first connecting pipeline communicated with the second vacuum source.
8. A unit oxygen mask regulator testing device according to claim 1 or 2, wherein: and a pressurizing air source regulator is arranged on the second connecting pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122322410.6U CN215573630U (en) | 2021-09-25 | 2021-09-25 | Unit oxygen mask regulator testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122322410.6U CN215573630U (en) | 2021-09-25 | 2021-09-25 | Unit oxygen mask regulator testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215573630U true CN215573630U (en) | 2022-01-18 |
Family
ID=79852028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122322410.6U Active CN215573630U (en) | 2021-09-25 | 2021-09-25 | Unit oxygen mask regulator testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215573630U (en) |
-
2021
- 2021-09-25 CN CN202122322410.6U patent/CN215573630U/en active Active
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