CN206056882U - A kind of airtight detecting apparatus for aircraft - Google Patents
A kind of airtight detecting apparatus for aircraft Download PDFInfo
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- CN206056882U CN206056882U CN201620876899.8U CN201620876899U CN206056882U CN 206056882 U CN206056882 U CN 206056882U CN 201620876899 U CN201620876899 U CN 201620876899U CN 206056882 U CN206056882 U CN 206056882U
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- aircraft
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- airtight detecting
- detection
- aerating
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- 238000001514 detection method Methods 0.000 claims abstract description 35
- 206010018987 Haemorrhage Diseases 0.000 claims abstract description 11
- 230000000740 bleeding Effects 0.000 claims abstract description 11
- 231100000319 bleeding Toxicity 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 11
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- 239000012530 fluid Substances 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
Abstract
This utility model provides a kind of airtight detecting apparatus for aircraft, including：Source of the gas, the aerating device with charge valve, the exhaust apparatus with air bleeding valve, for being detected by detection means, also including：PLC, the PLC are used for the work for controlling the charge valve and the air bleeding valve, and pressure transducer, the pressure transducer are used to measure real-time pressure.This utility model has following features：Improve the air-tightness accuracy of detection, stability and efficiency, strengthen lean and the safety of aircraft Assembling Production.
Description
Technical field
This utility model is related to a kind of airtight detecting apparatus for aircraft, in particular for the airtight inspection of aircraft water system
Measurement equipment.
Background technology
With the needs that scientific and technological progress and aircraft industry are produced, more and more higher is required to the air-tightness of product and equipment, because
, in addition to adopting effective measures in design and the course of processing, the requirement to detection meanss and technical research is also increasingly for this
It is high.
External generally to adopt automatization's airtight detecting apparatus to air tight test, such as U.S. is winning and Japanese COSMO strains
All kinds of leak hunting instruments that formula commercial firm develops, which can reach 0.1Pa in high precision, general precision for 1Pa.And the country is in airtight detection
Start to walk evening in the research of technology, continue to use wet type detection method always.Research to dry type detection method, just started to walk to the nineties, and state
The research for being inside engaged in airtight detecting apparatus is simultaneously few.Due to the difference of detection object, cause not formulate unified airtight measurement
Standard, typically only meets the requirement of respective enterprise, and the country does not form unified standards system.
At present, domestic civil aircraft is manufactured after components and parts assembling is completed, and need to carry out air-tight test to whole water system
To detect whether to reach seaworthiness demand, and continue to use testing equipment is that simple machine that the nineties, McDonnell-Douglas Corporation used is (straight more
Pressure type Leakage inspection method).This testing equipment and method require that measured object volume is stable, but measured object or compressed air
Temperature change can cause pressure unstability；During for mass detection, detection time does not typically allow oversize, therefore pressure transducer
It is difficult to capture small leakage, so as to cause detection error.The equipment is purely manual operation, and the operating time is long, practical efficiency
It is low, it is less demanding to accuracy of detection.
Utility model content
For domestic existing airtight detecting apparatus and the state of the art, to fill up existing air-tightness research field technological gap,
This utility model adopts direct press type Leakage inspection method, and design is a set of, and by PLC, (full name is Programmable Logic
Controller, you can programmed logic controller) the air seal test equipment of real-time monitoring and control is controlled and possesses, change traditional handss
Dynamic detection, improve the air-tightness accuracy of detection, stability and efficiency strengthen lean and the safety of aircraft Assembling Production.
This utility model provides a kind of airtight detecting apparatus for aircraft, including：Source of the gas, the dress of the inflation with charge valve
Put, the exhaust apparatus with air bleeding valve, for being detected by detection means, also including：PLC, the PLC are described for controlling
The work of charge valve and the air bleeding valve；Pressure transducer, the pressure transducer are used to measure real-time pressure.
Preferably, the air filter being joined directly together with the source of the gas.
Preferably, also including PLC control panels, the PLC control panels include：Start button, it is described for opening
Source of the gas；Inflation button, for opening the charge valve, makes the aerating device work；Exhaust button, for opening the aerofluxuss
Valve, makes the exhaust apparatus work；Conclusion button, for terminating whole detection process.
Preferably, the pressure of the aerating device is 0 to 50psi.It is highly preferred that the pressure of the aerating device is 30
To 50psi.Most preferably, the pressure of the aerating device is 36psi.
Preferably, described is aircraft water system by detection means.
Preferably, the pressure transducer is pressure transducer DMP331.
Preferably, the pressure transducer is digital display pressure transducer.
Preferably, the described airtight detecting apparatus for aircraft, also include：Pressure gauge, the pressure gauge are used to show
Show real-time pressure.
It is of the present utility model with following features：The Automation Design replaces traditional-handwork operation, improves detection process
Automatization level, alleviates the labor intensity of workman, improves work efficiency；Detection process control is flexible；Improve air seal test
The precision of detection, the stability of strengthening system work, in particular by the higher gas pressure detection of precision, can be with minimum detection
The pressure change of 0.01psi, pressure transducer detection range is 0-50psi, and accuracy of detection is 0.05%.
Description of the drawings
Fig. 1 is the preferred schematic diagram of the airtight detecting apparatus for aircraft of the present utility model.
Fig. 2 is the schematic diagram of the PLC control panels in this utility model.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing and instantiation.For the convenience discussed,
Using " on ", D score, "left", "right" the orientation in each schematic diagram is indicated, be conducive to the expansion discussed.
As shown in figure 1, being a kind of preferred airtight detecting apparatus for aircraft of this utility model, distinguish from left to right
For：Source of the gas 1, air filter 2, the aerating device 8 with charge valve 2, digital display pressure transducer 6 and PLC5, with air bleeding valve 3
Exhaust apparatus 9, low order end connection be aircraft water system by detection means 4.Meanwhile, the PLC5 that figure 1 illustrates, for controlling
The work of charge valve processed 2 and air bleeding valve 3.As shown in Fig. 2 the PLC control panels 15 being used in combination with PLC5 are illustrated, its bag
Include：Start button 11, inflation button 12, exhaust button 13, conclusion button 14.Wherein, pressure transducer, can be plain edition
Number；In this preferred embodiment, use digital display pressure transducer 6；In other preferred embodiments, not shown in figure,
Can also be combined with manometric using usual pressure sensor, pressure gauge therein is used to show real-time pressure.
With reference to Fig. 1 and Fig. 2, a kind of preferred main airtight detection of the airtight detecting apparatus for aircraft of this utility model
Details are as follows for process.First, the start button 11 on PLC control panels 15 is pressed, source of the gas 1 is opened, air is through air filtration
Device 7.Now, inflation button 12 is pressed, charge valve 2 is opened, air is constantly inflated in aerating device 8, until digital display
Pressure transducer 6 is tested air pressure and reaches preset value 36psi, gives PLC5 mono- signals, then PLC5 controls charge valve 2
Close, and the process that initiation pressure keeps, carry out the pressure holding of 30 minutes.During pressure keeps, digital display pressure is passed
Sensor 6 can measure real-time pressure.If As time goes on and constantly real-time pressure declines, illustrate by detection means 4
Air-tightness is not good；If conversely, implement pressure As time goes on not changing, illustrating the gas of spare part pool device 4
Close performance is good.After pressure holding is completed, exhaust button 13 is pressed, open air bleeding valve 3, air is discharged from exhaust apparatus 9.Most
Afterwards, conclusion button 14 is pressed, is terminated whole detection process, and is made each component reset.
In above-mentioned airtight detection process, aerating device 8 and exhaust apparatus 9 are all controlled by PLC5, PLC5 controls
Four major functions are：Open source of the gas, gas replenishment process, exhaust process, detection of end.Wherein, PLC5 is entirely to be used for aircraft
The Automated condtrol core of airtight detecting apparatus, its major function is：Opening for charge valve 2 and air bleeding valve 3 is controlled by PLC5
Close and leaked hunting detection with completing direct pressure, while digital display pressure transducer 6 is utilized, by the whole airtight detecting apparatus for aircraft
The pressure signal in each stage feeds back to PLC5 to be detected and be controlled, and then completes once complete detection process.
For the digital display pressure transducer 6 in this utility model, its precision directly affects the whole airtight inspection for being used for aircraft
The accuracy of detection of measurement equipment.Therefore, it can choose the strong pressure transducer of high precision, economic and practical.Use of the present utility model
The digital display pressure transducer 6 chosen in the airtight detecting apparatus of aircraft is the high-precision pressure sensor DMP331 of German import,
This pressure transducer DMP331 can change the High Linear electric signal output that is directly proportional gas, fluid pressure.DMP331 pressure is passed
Sensor can be used to measure static pressure and dynamic pressure, can select different encapsulants, DMP331 pressure sensings by different requirements
The core devices pressure drag rustless steel sensor of device has temperature drift coefficient little and linear outstanding characteristic, and can choose pressure range is
0-50psi, its precision meet 0.05%FS (gamut regulation), are the airtight detecting apparatus for aircraft of the present utility model
Ideal transducer.
In above-mentioned airtight detection process, the blowing pressure is 36psi, and the time for stopping inflation beginning pressurize is 30 minutes,
Therefore pressure is little, the dwell time is long, has effectively evaded two shortcomings of direct press type Leakage inspection method, has fully met demand.
Simultaneously for the conversion of accurately reaction pressure, PLC controls are applied in traditional direct pressure formula air leakage detector, are passed through
Certainty of measurement is improved using high-resolution pressure transducer.
Described above to embodiment, enables professional and technical personnel in the field to realize or use this utility model.To reality
The various modifications for applying example will be apparent for those skilled in the art, generic principles defined herein
Can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Therefore, this utility model
It is not intended to be limited to embodiment illustrated herein, all technical sides obtained by the way of equivalent or equivalent transformation
Case, all falls within protection domain of the present utility model.It is only the preferred embodiment of utility model in sum, is not used for
Limit practical range of the present utility model.The equivalence changes made by i.e. all contents according to this utility model claim with repair
Decorations, all should be technology category of the present utility model.
Claims (10)
1. a kind of airtight detecting apparatus for aircraft, including：Source of the gas, the aerating device with charge valve, the aerofluxuss with air bleeding valve
Device, for being detected by detection means, it is characterised in that also include：
PLC, the PLC are used for the work for controlling the charge valve and the air bleeding valve；
Pressure transducer, the pressure transducer are used to measure real-time pressure.
2. as claimed in claim 1 airtight detecting apparatus for being used for aircraft, it is characterised in that be joined directly together with the source of the gas
Air filter.
3. the airtight detecting apparatus of aircraft are used for as claimed in claim 1, it is characterised in that also including PLC control panels, institute
Stating PLC control panels includes：
Start button, for opening the source of the gas；
Inflation button, for opening the charge valve, makes the aerating device work；
Exhaust button, for opening the air bleeding valve, makes the exhaust apparatus work；
Conclusion button, for terminating whole detection process.
4. as claimed in claim 1 airtight detecting apparatus for being used for aircraft, it is characterised in that the pressure of the aerating device is
0 to 50psi.
5. as claimed in claim 4 airtight detecting apparatus for being used for aircraft, it is characterised in that the pressure of the aerating device is
30 to 50psi.
6. as claimed in claim 5 airtight detecting apparatus for being used for aircraft, it is characterised in that the pressure of the aerating device is
36psi。
7. the airtight detecting apparatus of aircraft are used for as claimed in claim 1, it is characterised in that described is aircraft by detection means
Water system.
8. the airtight detecting apparatus of aircraft are used for as claimed in claim 1, it is characterised in that the pressure transducer is pressure
Sensor DMP331.
9. the airtight detecting apparatus of aircraft are used for as claimed in claim 1, it is characterised in that the pressure transducer is digital display
Pressure transducer.
10. the airtight detecting apparatus of aircraft are used for as claimed in claim 1, it is characterised in that also included：Pressure gauge, it is described
Pressure gauge is used to show real-time pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620876899.8U CN206056882U (en) | 2016-08-12 | 2016-08-12 | A kind of airtight detecting apparatus for aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620876899.8U CN206056882U (en) | 2016-08-12 | 2016-08-12 | A kind of airtight detecting apparatus for aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206056882U true CN206056882U (en) | 2017-03-29 |
Family
ID=58380985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620876899.8U Active CN206056882U (en) | 2016-08-12 | 2016-08-12 | A kind of airtight detecting apparatus for aircraft |
Country Status (1)
| Country | Link |
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| CN (1) | CN206056882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104208A (en) * | 2019-05-09 | 2019-08-09 | 中国飞机强度研究所 | A kind of air inflation discharging control device |
-
2016
- 2016-08-12 CN CN201620876899.8U patent/CN206056882U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104208A (en) * | 2019-05-09 | 2019-08-09 | 中国飞机强度研究所 | A kind of air inflation discharging control device |
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