CN206056882U - A kind of airtight detecting apparatus for aircraft - Google Patents

A kind of airtight detecting apparatus for aircraft Download PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
aircraft
pressure
airtight detecting
detection
aerating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201620876899.8U
Other languages
Chinese (zh)
Inventor
王建
乔晓伟
赖杰
陈�胜
迟湘颖
朱江峰
任鹃
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commercial Aircraft Corp of China Ltd
Shanghai Aircraft Manufacturing Co Ltd
Original Assignee
Commercial Aircraft Corp of China Ltd
Shanghai Aircraft Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Commercial Aircraft Corp of China Ltd, Shanghai Aircraft Manufacturing Co Ltd filed Critical Commercial Aircraft Corp of China Ltd
Priority to CN201620876899.8U priority Critical patent/CN206056882U/en
Application granted granted Critical
Publication of CN206056882U publication Critical patent/CN206056882U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

A kind of airtight detecting apparatus for aircraft
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.
CN201620876899.8U 2016-08-12 2016-08-12 A kind of airtight detecting apparatus for aircraft Active CN206056882U (en)

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
CN (1) CN206056882U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN202903434U (en) A detecting device
CN205426439U (en) Valve seal nature detection frock
CN105067193B (en) A kind of actuator leak detector and its application method
CN104931208B (en) A kind of leakage mechanism for testing and its method of testing for built-in product
CN102590016B (en) Measurement method of soil moisture characteristic curve measurement device
CN206056882U (en) A kind of airtight detecting apparatus for aircraft
CN104236826A (en) Bagged product tightness detection device and method
CN207816538U (en) A kind of air-distributor vacuum actuator leakage test device
CN207540734U (en) A kind of hydrogen mass spectrography leakage detection apparatus
CN108151985A (en) A kind of external pressure direct pressure closing test device for air tightness
CN104061955A (en) Verification platform for sulfur hexafluoride gas humidity sensor under pressure
CN204007679U (en) A kind of band is depressed the verification platform of sulfur hexafluoride gas humidity sensor
CN205388506U (en) Circulating high -pressure gas flow rate standard facility
CN103389193A (en) Detecting system and method of leakage of gas cylinder
CN206019949U (en) Fast accurate tubing leakage point detector
CN105987856A (en) Vacuum drying moisture measurement device for down feather
CN206488906U (en) A kind of detection apparatus for aeration for test container sealing
CN206601219U (en) A kind of air tightness detection apparatus controlled based on PLC
CN205262697U (en) Gas solenoid valve auto -action performance and leakage test machine
CN205300873U (en) Combined type airtight inspection machine futilely wets
CN208155543U (en) Shell leakage detection device
CN107741303A (en) Mould vacuum leak detection device and leak detection method
CN210089813U (en) Simple and easy calibrating device of vapour-pressure type level gauge
CN107907273B (en) A kind of partially sealed outer surface air-tightness detection method of product
CN208888063U (en) It is a kind of for testing the device of sebific duct compressive resistance

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant