CN109489915A - A kind of gas seal property detection device and its application method - Google Patents
A kind of gas seal property detection device and its application method Download PDFInfo
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- CN109489915A CN109489915A CN201910041524.8A CN201910041524A CN109489915A CN 109489915 A CN109489915 A CN 109489915A CN 201910041524 A CN201910041524 A CN 201910041524A CN 109489915 A CN109489915 A CN 109489915A
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- gas
- main nacelle
- sensor
- pressure sensor
- slide rail
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/226—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of gas seal property detection device and its application methods, including the main nacelle for placing detected gas sealant element, the different height of the main nacelle inner wall is equipped with pressure sensor, leakage detecting sensor and slide rail, infrared thermal imager is slidably connected on the slide rail, is equipped in the main nacelle connecting with the pressure sensor, leakage detecting sensor and infrared thermal imager analysis shows that screen.The present invention by can on respective guide rail circular motion three infrared thermal imagers shoot all angles thermal-induced imagery, position the leakage position of tested sealing element rapidly according to image change, then pass through the pressure sensor on sealed compartment inner casing and detect the variation of sealed compartment internal pressure, then detect the position for realizing the leakage parameters such as the released gas rate for calculating tested gas sealant element and the leakage of its gas in sealed compartment by the search gas content that tested sealing element leaks by gas leakage sensor.
Description
Technical field
The invention belongs to the technical fields more particularly to a kind of gas seal property detection device of gas seal property detection
And its application method.
Background technique
Currently, there is many gas sealant elements in the market, these gas sealant elements in respective mechanical equipment all
It plays an important role, so, it is more demanding to the sealing performance of gas sealant element.Gas seal property in industry at present
Detection includes two major classes: the first kind is detected by leakage position of the technological means to sealing element；Second class is to pass through
Specific experimental facilities detects the quantity of gas leakage of gas sealant element.These detection methods are on the one hand more single,
The specific sealing performance parameter that can not obtain the sealing element rapidly, on the other hand due to the limit by detection technique or instrument
System, easily causes biggish error, influences the accuracy of testing result.
Summary of the invention
Based on the above the deficiencies in the prior art, technical problem solved by the invention is to provide a kind of quick, accurate, complete
The gas seal property detection device and its application method in face can fast and accurately find the leakage of tested gas sealant element
Position, and it is able to detect the sealing performance of tested gas sealant element.
In order to solve the above-mentioned technical problem, the present invention is achieved through the following technical solutions: the present invention provides a kind of gas
Sealing property detection device, including the main nacelle for placing detected gas sealant element, the main nacelle inner wall is not
It is equipped with pressure sensor with height, for detecting the gas pressure value of different height level different location in main nacelle；
The different height of the main nacelle inner wall is equipped with leakage detecting sensor, different high in main nacelle for detecting
The content of search gas in gas leakage at degree, different angle；
The different height of the main nacelle inner wall is equipped with slide rail, slidably connects infrared heat on the slide rail
Imager obtains infrared image for being shot from all angles；
It is equipped in the main nacelle analysis shows that shielding, with the pressure sensor, leakage detecting sensor and infrared heat
Imager connection, for determining gas to the pressure value come, trace gas concentration value, infrared image progress comprehensive analysis is transmitted back to
The leak position of body sealing element and slip.
Optionally, the pressure sensor includes being located at the level of upper, middle and lower three of the main nacelle inner wall not
With the first pressure sensor of position, second pressure sensor and third pressure sensor, the first pressure sensor, second
The spatial arrangement position of pressure sensor and third pressure sensor is interlaced, and three pressure sensors are projected in horizontal plane
120 ° of angles were mutually when upper.
Further, the leakage detecting sensor includes the layer of upper, middle and lower three for being located at the main nacelle inner wall
The first leakage detecting sensor, the second leakage detecting sensor and the third leakage detecting sensor of the different location in face；
First leakage detecting sensor, the second leakage detecting sensor and third leakage detecting sensor respectively with institute
First pressure sensor, second pressure sensor and third pressure sensor is stated to be disposed adjacent.
Optionally, the slide rail include the first slide rail being distributed in different height level, second sliding lead
Rail and third slide rail；
The infrared thermal imager includes being slidably connected at first slide rail, the second slide rail and third respectively
The first infrared thermal imager, the second infrared thermal imager and third infrared thermal imager on slide rail；
First slide rail, the second slide rail and third slide rail are rounded, and first thereon is red
Outer thermal imaging system, the second infrared thermal imager and third infrared thermal imager make circular-rotation around the central axes of main nacelle.
Optionally, two sides are symmetrically arranged with described analysis shows that the water mist of screen connection pressurizes at the top of the inner wall of the main nacelle
Device is used to form spraying air humidity inside adjusting main nacelle；
The main nacelle is equipped with water inlet, and one end of the water inlet is connected by water inlet line and the water mist pressurizer
It connects, the other end connects water tank.
Further, moisture detection sensor is equipped in the main nacelle, with described analysis shows that screen connects, for detecting
The interior humidity of main nacelle.
Optionally, the middle position at the top of the inner wall of the main nacelle be equipped with it is described analysis shows that screen connection light source,
For providing illumination for the inside of main nacelle；
The surface of the light source is equipped with reflector, for the light of the light source all to be gathered gas sealant element
Position.
Further, light-intensity test sensor is equipped in the main nacelle, with described analysis shows that screen connects, for detecting
The interior illumination intensity of main nacelle.
Optionally, the bottom of the main nacelle is equipped with exhaust pipe, one be located inside main nacelle of the exhaust pipe
End is connected with filter, and the one end of the exhaust pipe being located at outside main nacelle is connected with vent hole seal lid；
The power interface for powering for detection device is additionally provided in the main nacelle and for carrying out data biography with the external world
Defeated data transmission hole.
By upper, by can on respective guide rail circular motion three infrared thermal imagers shoot all angles infrared heat
Image positions rapidly the leakage position of tested sealing element according to image change, is then passed by the pressure on sealed compartment inner casing
Sensor detects the variation of sealed compartment internal pressure, then is detected in sealed compartment by gas leakage sensor by tested sealing element leakage
Search gas content out and then realize calculate the leakage parameters such as the released gas rate of tested gas sealant element and its
The position of gas leakage.
The present invention also provides a kind of application methods of above-mentioned gas seal property detection device, comprising the following steps:
S10: the gas and tracer gas that its script to be stored will be simultaneously filled in detected gas sealant element first
Body makes gas sealant element internal gas pressure reach its specified pressure value；
S20: detected gas sealant element is put into main nacelle；
S30: the infrared thermal imager on slide rail is rotated since initial position in the same direction simultaneously, and
Often turning an angle, it is primary to shoot, and then sends the infrared image taken to analysis shows that carrying out discriminance analysis in shielding；
S40: the data monitored are transferred in analysis shows that shielding by pressure sensor and leakage detecting sensor in real time, point
Analysis display screen according to be transmitted back to come infrared image, pressure value, trace gas concentration value progress comprehensive analysis, determine air seal
The leak position of element；
S50: making infrared thermal imager while turning at leak position, make reveal position clearly react it is infrared heat at
As instrument coverage in, start simultaneously at video recording and quickly shooting, the leak position of gas sealant element be accurately positioned；
S60: while being located at the pressure sensor and leakage detecting sensor of different height, different location on main nacelle inner wall
The content of pressure change and search gas in real-time monitoring main nacelle, and its collected data passed back in time analysis shows that
Screen is stored, recorded and is analyzed, after gas pressure reaches designated value in main nacelle, analysis shows that screen is according to collected data
Analytical calculation is carried out, obtains the slip of detected gas sealant element.
By upper, the configuration of the present invention is simple, it is convenient to operate, and can either fast and accurately find letting out for tested gas sealant element
Reveal position, and be able to detect the sealing performance of tested gas sealant element, immediately arrives at relevant parameter, substantially improve previous
The drawbacks of single-measurement and multi-section measurement leakage position and sealing performance, has fully demonstrated automation and intelligentized theory is thought
Think, provides certain theoretical foundation for the detection of subsequent related fields.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, below in conjunction with preferred embodiment, and cooperates attached drawing, detailed description are as follows.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, the attached drawing to embodiment is simply situated between below
It continues.
Fig. 1 is the main view of the gas seal property detection device of the preferred embodiment of the present invention；
Fig. 2 is the perspective view of the gas seal property detection device of the preferred embodiment of the present invention；
Fig. 3 is the internal structure chart of the gas seal property detection device of the preferred embodiment of the present invention；
Fig. 4 is the inside main element spatial distribution map of the gas seal property detection device of the preferred embodiment of the present invention；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the infrared survey angle figure of the gas seal property detection device of the preferred embodiment of the present invention.
In figure, 1- bilge support；2- hatch door；3- main nacelle；The cabin 4- top；5- is analysis shows that screen；6- operation button；7- data
Transmit mouth；8- power interface；9- water inlet；10- water mist pressurizer；11- reflector；12- light source；The first leak detection of 13- passes
Sensor；14- first pressure sensor；The first infrared thermal imager of 15-；The first slide rail of 16-；The second leak detection of 17- passes
Sensor；18- second pressure sensor；The second slide rail of 19-；The second infrared thermal imager of 20-；21- third infrared thermal imaging
Instrument；22- third pressure sensor；23- third leakage detecting sensor；24- third slide rail；25- gas sealant element；
26- sealing element fixing seat；27- filter；28- exhaust pipe；29- vent hole seal lid；30- moisture detection sensor；31- light
Strong detection sensor.
Specific embodiment
The embodiment of the invention will now be described in detail with reference to the accompanying drawings, and as part of this specification passes through
Embodiment illustrates the principle of the present invention, and other aspects of the present invention, feature and its advantage will become by the detailed description
It is very clear.In the attached drawing of institute's reference, the same or similar component is indicated using identical drawing reference numeral in different figures.
The body contours of gas seal property detection device of the invention are the sealed compartment of a capsule-type, the outside of device
Structure mainly include bilge support 1, hatch door 2, main nacelle 3, water inlet 9, power interface 8, data transmission mouth 7, operation button 6,
Analysis shows that screen 5, cabin push up 4, vent hole seal lid 29；The internal structure of the present apparatus mainly includes being mounted on 3 inner wall of main nacelle
Filter 27, sealing element fixing seat 26, detected gas sealant element 25, pressure sensor 14,18,22, leak detection
Sensor 13,17,23, light-intensity test sensor 31, moisture detection sensor 30, slide rail 16,19,24 and infrared thermal imaging
Instrument 15,20,21, water mist pressurizer 10, reflector 11 and light source 12.In addition, being additionally provided with exhaust pipe between present apparatus inner and outer shell
Road 28, water inlet line, data transmission circuit, power transmission circuit etc..
As shown in figures 1 to 6, the bilge support 1 of gas seal property detection device provided by the invention, main nacelle 3 and cabin top
4 are fixed together using welding mean, and the bilge support 1 is the support construction of whole device, are fixed under main nacelle 3
Portion plays the role of supporting whole device.The main nacelle 3 is the main structure of whole device, is other machines of described device
Structure provides carrier.The hatch door 2 is located on the bulkhead of the main nacelle 3, and detected gas sealant element 25 can pass through institute
It states hatch door 2 and passes in and out the main nacelle 3, the hatch door 2 requires good gas tightness.29, the vent hole seal lid
In the bottom of main nacelle 3, enter the device of the invention without using external dust can be completely cut off when apparatus of the present invention, when experiment measures
The exhaust pipe 28 can be sealed, prevents 3 internal gas of main nacelle from leaking and then influences measurement accuracy.The exhaust pipe 28
It is connected with filter 27, after the completion of described device test experience, the gas in the main nacelle 3 can first pass through the filter
27, then be discharged by the exhaust pipe 28.The filter 27 is the gas filtration mechanism of apparatus of the present invention, works as apparatus of the present invention
After the completion of experiment, the gas leakage in the main nacelle 3 can pass through the filter 27, guarantee its filtered nontoxic nothing of gas
After evil, it is discharged via the exhaust pipe 28.
One end of water inlet 9 is connect with the water mist pressurizer 10 by water inlet line in main nacelle 3 of the invention, another
External water tank (not shown) is held, water source can be provided for water mist pressurizer 10.The water mist pressurizer 10 is located at device inner wall
Top two sides are symmetrically placed, and one side device is absorbed water before starting measurement by water inlet 9, then passes through shape after water mist pressurizer 10
At being sprayed, to adjust 3 inner air humidity of main nacelle；On the other hand after experiment is measured, water inlet 9 and water tank are disconnected,
Water mist pressurizer 10 can suck the inside that air is injected into the main nacelle 3 by water inlet 9, increase its air pressure inside, this
When open vent hole seal lid 29, arrange after the gas main nacelle 3 inside can be made to filter by filter 27 into atmosphere.
Light source 12 and reflector 11 are located at the 3 inner top wall middle of main nacelle, and the two is used cooperatively, the light source 12
Intensity of illumination and switch can be by analysis shows that 5 control of screen, the reflector 11 can be all poly- by the light of the light source 12
Collect the underface of light source, the i.e. position of detected gas sealant element 25, is irradiated by the light of certain intensity of illumination, it can
So that the shooting effect of infrared thermal imager is more preferably, accuracy of identification is improved, mitigates described analysis shows that shielding 5 pairs of infrared images
Analyze difficulty.
Power interface 8 is the plant-grid connection mouth of described device, in the outer casing bottom of the main nacelle 3, use process
It directly can be all parts power supply in the device of the invention by power transmission circuit.The data transmission hole 7 is described
Device and extraneous information transmission hole, the Various types of data that apparatus of the present invention test is got can be transmitted by data transmission hole 7
Into external equipment.
Of the invention is located on the outer wall of the main nacelle 3 analysis shows that shielding 5, can show all kinds of operational orders and test
Data, with the pressure sensor 14,18,22, leakage detecting sensor 13,17,23 and infrared thermal imager 15,20,21
It is connected by data transmission circuit.The operation button 6 is the report control platform of described device, and every operation instruction is flat by operation
Platform operation issues, with described analysis shows that screen 5, pressure sensor 14,18,22, leakage detecting sensor 13,17,23 and red
Outer thermal imaging system 15,20,21 is connected by data transmission circuit.
Pressure sensor 14,18,22, leakage detecting sensor 13,17,23 and slide rail 16,19,24 of the invention,
Infrared thermal imager 15,20,21 is divided into three layers, is sequentially distributed on the different height layer of 3 inner wall of main nacelle.The pressure
Force snesor 14,18,22 and the collocation of the leakage detecting sensor 13,17,23 use, and the two is mutually adjacent to be fixed on the main cabin
In three levels of 3 inner wall different height of body.The pressure sensor 14,18,22 is located on 3 inner wall of main nacelle, described
Pressure sensor is divided into first pressure sensor 14, second pressure sensor 18, third pressure sensor 22, three pressure sensings
Device 14,18,22 is located at the different location of three levels in upper, middle and lower of 3 inner wall of main nacelle, and three pressure pass
The spatial arrangement position of sensor 14,18,22 is interlaced, from main element spatial distribution inside apparatus of the present invention of Fig. 4 and Fig. 5
From the point of view of figure, three pressure sensors 14,18,22 are mutually 120 ° of angles, detect three different height layers in the main nacelle 3 respectively
Its value is simultaneously transmitted to described analysis shows that shielding in 5, then by the gas pressure value of face different location by data transmission circuit
It is described the average pressure value of three to be taken to show on a display screen as final result analysis shows that shielding 5.
The space layout of leakage detecting sensor 13,17,23 and the pressure sensor 14,18,22 of the invention is similar,
It is divided into the first leakage detecting sensor 13, the second leakage detecting sensor 17, third leakage detecting sensor 23, is similarly positioned in
The different location of three levels in upper, middle and lower, and the spatial arrangement position of three leakage detecting sensors 13,17,23 is mutually handed over
Mistake, from the point of view of in the top view of Fig. 5, three leakage detecting sensors 13,17,23 are mutually 120 angles, detect the main cabin respectively
Different height in body 3, in the gas leakage at different angle search gas content, and by its value be transmitted to it is described analysis shows that
In screen 5, and the foundation that auxiliary judgment reveals position can be used as according to numerical value difference, leakage position should be located at detection search gas
It is described analysis shows that screen 5 can be by three's numerical value near maximum 13,17, the 23 place Plane Location of leak sensor of concentration
As the data finally measured after being averaged, and instruction is assigned to the infrared thermal imager 15,20,21, makes described three
When infrared thermal imager 15,20,21 moves to concentration monitor higher position, reduces movement speed and be continuously shot, and then more
Accurately identify leakage position.
Slide rail 16,19,24 of the invention is located on 3 inner wall of main nacelle, is divided into the first slide rail 16, second
Slide rail 19, third slide rail 24, for position distribution in different height level, effect is for the infrared thermal imaging
The circumferential slippage of instrument 15,20,21 provides guiding role, and when device is started to work, the infrared thermal imager 15,20,21 can be with
It is flexibly rotated in the slide rail 16,19,24.The infrared thermal imager is divided into the first infrared thermal imager 15,
Two infrared thermal imagers 20, third infrared thermal imager 21, three infrared thermal imagers 15,20,21 respectively with the cunning
Dynamic guide rail 16,19,24 connects, and initial position is located at the equal angular position of different height layer guide rail, three infrared heat
The position of 15,20,21 initial time of imager be on same vertical line, can be on three slide rails 16,19,24
It realizes the free circular-rotation in central axes around the main nacelle 3, and then realizes and shot from all angles, then will take
Infrared image delivery to described analysis shows that screen 5 carries out image recognitions and data analysis, when it is described analysis shows that screen 5 by pair
When a series of analyses for the image passed back find leakage position, three infrared thermal imagers 15,20,21 when can assign instruction immediately
It is moved quickly near leakage position at once, it is then slowly mobile to be continuously shot and pass the infrared image taken back described point
It analyses in display screen 5, until described analysis shows that stopping at the optimum photographing position that 5 analysis of screen is assert, then three described infrared
15,20,21 adjust automatically shooting focal length of thermal imaging system and shooting angle, to seek optimal shooting effect, all adjustment is completed
Start to continue the leakage situation that position is revealed in video recording afterwards.
Light-intensity test sensor 31 and moisture detection sensor 30 of the invention is in order to promote the infrared thermal imager
15,20,21 shooting precision and be arranged.According to the prior art, it is known that intensity of illumination and air humidity can be to infrared shooting essences
Degree has an impact, thus consider this factor, the light-intensity test sensor 31 and moisture detection sensor 30 are set, both with
It is described to be connected analysis shows that shielding 5, the operation button 6 can be first passed through before experiment in advance and inputs ideal air humidity value and light
According to intensity value, then the instruction can be by the way that analysis shows that screen 5 is assigned to light source 12 and water mist pressurizer 10, the two be connected to instruction and opens
Beginning illumination and atomized water spray, the value detected by the light-intensity test sensor 31 and moisture detection sensor 30 meet in advance
After setting, analysis shows that screen 5 issues halt instruction, the light source 12 and water mist pressurizer 10 stop working.
In the following, referring to Fig.1~Fig. 6 and combination above structure description, to gas seal property detection device of the invention
Application method is described:
It will be simultaneously filled with the gas and search gas that its script to be stored in detected gas sealant element 25 first,
Tested 25 internal gas pressure of gas sealant element is set to reach its specified pressure value.It is required that search gas is cannot be close with gas
Any chemical reaction of storage gas generation originally in element 25 is sealed, and does not have harmfulness, and detection sensor 13 can be compromised,
17,23 gases detected, wherein search gas is chosen as helium.
Then the hatch door 2 for opening main nacelle 3 of the invention rapidly will need detected gas sealant element 25 to be put into
In main nacelle 3, and hatch door 2 is closed after placing it in the sealing element fixing seat 26 at 3 interior compartment bottom of main nacelle, and open sealing
Cabin power switch.It can control each mechanism in main nacelle 3 by control operation button 6 and start simultaneously at work.At this point, being located at three
Three infrared thermal imagers 15,20,21 on a slide rail 16,19,24 turn since initial position in the same direction simultaneously
It is dynamic, and often turn an angle that (generally no greater than 20 degree) just shooting once, then sends the infrared image taken to
Apparatus of the present invention carry out discriminance analysis, while pressure sensor 14,18,22 and leakage detecting sensor analysis shows that shielding in 5
13,17,23 also can in real time be transferred to the data monitored analysis shows that shielding in 5, when three infrared thermal imagers 15,20,21
Rotated one week after returning to initial position, analysis shows that screen 5 can according to be transmitted back to come infrared image, pressure value, concentration value etc.
Comprehensive analysis is carried out, determines leak position, then system can issue instruction at once keeps three infrared thermal imagers 15,20,21 same
When turn at leak position, and each self-adjusting shooting angle and auto-focusing, enable to reveal position clearly reflects should be
In the coverage of three infrared thermal imagers 15,20,21, and video recording and quickly shooting are started simultaneously at, it is just that gas is close in this way
Envelope element 25 leak position be accurately positioned, can according to three infrared thermal imagers 15,20 from different shooting angles,
21 infrared images passed back are analyzed, and the sealing performance for analyzing gas sealant element 25 is facilitated.It is located at main cabin at the same time
Three pressure sensors, 14,18,22 and three leakage detecting sensors 13,17 of different height, different location on 3 inner wall of body,
The content of the 23 also pressure changes in real-time monitoring main nacelle 3 and search gas, and its collected data is passed back in time
Analysis shows that screen 5 is stored, recorded and is analyzed, after gas pressure reaches designated value in main nacelle 3 after such a period of time, point
Relevant analytical calculation can be carried out according to collected Various types of data by analysing display screen 5, finally obtain tested gas sealant element
25 slip, a series of sealing performance parameters such as leakage position.
The present invention is by that three infrared thermal imagers of circular motion can shoot the infrared of all angles on respective guide rail
Thermal image positions rapidly the leakage position of tested sealing element according to image change, then passes through the pressure on sealed compartment inner casing
Sensor detects the variation of sealed compartment internal pressure, then is detected in sealed compartment by gas leakage sensor and let out by tested sealing element
The search gas content exposed and then realize calculate the leakage parameters such as the released gas rate of tested gas sealant element and
The position of its gas leakage.
The above is a preferred embodiment of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, it is noted that for those skilled in the art, without departing from the principle of the present invention, may be used also
To make several improvement and variation, these, which improve and change, is also considered as protection scope of the present invention.
Claims (10)
1. a kind of gas seal property detection device, special including the main nacelle for placing detected gas sealant element
Sign is:
The different height of the main nacelle inner wall is equipped with pressure sensor, different for detecting different height level in main nacelle
The gas pressure value of position；
The different height of the main nacelle inner wall is equipped with leakage detecting sensor, for detecting different height in main nacelle, no
With the content of search gas in the gas leakage at angle；
The different height of the main nacelle inner wall is equipped with slide rail, slidably connects infrared thermal imaging on the slide rail
Instrument obtains infrared image for being shot from all angles；
It is equipped in the main nacelle analysis shows that shielding, with the pressure sensor, leakage detecting sensor and infrared thermal imaging
Instrument connection, for determining that gas is close to the pressure value come, trace gas concentration value, infrared image progress comprehensive analysis is transmitted back to
Seal leak position and the slip of element.
2. gas seal property detection device as described in claim 1, which is characterized in that the pressure sensor includes difference
First pressure sensor, second pressure sensor positioned at the different location of three levels in upper, middle and lower of the main nacelle inner wall
With third pressure sensor, the spatial arrangement of the first pressure sensor, second pressure sensor and third pressure sensor
Position is interlaced, and the projection of three pressure sensors in the horizontal plane when be mutually 120 ° of angles.
3. gas seal property detection device as claimed in claim 2, which is characterized in that the leakage detecting sensor includes
It is located at the first leakage detecting sensor of the different location of three levels in upper, middle and lower of the main nacelle inner wall, second lets out
Leak detection sensor and third leakage detecting sensor；
First leakage detecting sensor, the second leakage detecting sensor and third leakage detecting sensor are respectively with described
One pressure sensor, second pressure sensor and third pressure sensor are disposed adjacent.
4. gas seal property detection device as described in claim 1, which is characterized in that the slide rail includes being distributed in
The first slide rail, the second slide rail and third slide rail in different height level；
The infrared thermal imager includes being slidably connected at first slide rail, the second slide rail and third sliding respectively
The first infrared thermal imager, the second infrared thermal imager and third infrared thermal imager on guide rail；
First slide rail, the second slide rail and third slide rail are rounded, and the first infrared heat thereon
Imager, the second infrared thermal imager and third infrared thermal imager make circular-rotation around the central axes of main nacelle.
5. gas seal property detection device as described in claim 1, which is characterized in that two at the top of the inner wall of the main nacelle
Side is symmetrically arranged with described analysis shows that the water mist pressurizer that screen connects, is used to form spraying air inside adjusting main nacelle
Humidity；
The main nacelle is equipped with water inlet, and one end of the water inlet is connect by water inlet line with the water mist pressurizer,
Its other end connects water tank.
6. gas seal property detection device as claimed in claim 5, which is characterized in that be equipped with humidity in the main nacelle and examine
Sensor is surveyed, with described analysis shows that screen connects, for detecting the interior humidity of main nacelle.
7. gas seal property detection device as described in claim 1, which is characterized in that at the top of the inner wall of the main nacelle
Middle position is equipped with described analysis shows that shielding the light source of connection, for providing illumination for the inside of main nacelle；
The surface of the light source is equipped with reflector, for the light of the light source all to be gathered to the position of gas sealant element
It sets.
8. gas seal property detection device as claimed in claim 7, which is characterized in that be equipped with light intensity in the main nacelle and examine
Sensor is surveyed, with described analysis shows that screen connects, for detecting the interior illumination intensity of main nacelle.
9. gas seal property detection device as described in claim 1, which is characterized in that the bottom of the main nacelle is equipped with row
Feed channel, the one end of the exhaust pipe being located inside main nacelle are connected with filter, and the exhaust pipe is located at main cabin
External one end is connected with vent hole seal lid；
Power interface for powering for detection device is additionally provided in the main nacelle and for carrying out data transmission with the external world
Data transmission hole.
10. a kind of application method using gas seal property detection device as described in any one of claim 1 to 9, special
Sign is, comprising the following steps:
S10: it will be simultaneously filled with the gas and search gas that its script to be stored in detected gas sealant element first, made
Gas sealant element internal gas pressure reaches its specified pressure value；
S20: detected gas sealant element is put into main nacelle；
S30: the infrared thermal imager on slide rail is rotated since initial position in the same direction simultaneously, and every turn
Dynamic certain angle shooting is primary, then sends the infrared image taken to analysis shows that carrying out discriminance analysis in shielding；
S40: the data monitored are transferred in analysis shows that shielding by pressure sensor and leakage detecting sensor in real time, and analysis is aobvious
Display screen according to be transmitted back to come infrared image, pressure value, trace gas concentration value carry out comprehensive analysis, determine gas sealant element
Leak position；
S50: making infrared thermal imager while turning at leak position, reacts leakage position clearly in infrared thermal imager
Coverage in, start simultaneously at video recording and quickly shooting, the leak position of gas sealant element be accurately positioned；
S60: while it is real-time to be located at different height, the pressure sensor of different location and leakage detecting sensor on main nacelle inner wall
Monitor the content of the pressure change and search gas in main nacelle, and its collected data passed back in time analysis shows that shield into
Row storage is recorded and is analyzed, after gas pressure reaches designated value in main nacelle, analysis shows that screen is carried out according to collected data
Analytical calculation obtains the slip of detected gas sealant element.
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| PCT/CN2019/121689 WO2020147435A1 (en) | 2019-01-16 | 2019-11-28 | Gas sealing performance detection device and method for using same |
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| WO2020147435A1 (en) | 2020-07-23 |
| CN109489915B (en) | 2022-02-22 |
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