CN106958744A - The detection and quantitative analysis method of air-jet loom compressed air leakage and detection means - Google Patents
The detection and quantitative analysis method of air-jet loom compressed air leakage and detection means Download PDFInfo
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- CN106958744A CN106958744A CN201710289063.7A CN201710289063A CN106958744A CN 106958744 A CN106958744 A CN 106958744A CN 201710289063 A CN201710289063 A CN 201710289063A CN 106958744 A CN106958744 A CN 106958744A
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- jet loom
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
- D03D47/3026—Air supply systems
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
- D03D47/3026—Air supply systems
- D03D47/306—Construction or details of parts, e.g. valves, ducts
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
- D03D47/3093—Displaying data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Looms (AREA)
Abstract
The invention discloses the detection of air-jet loom compressed air leakage and quantitative analysis method, the change of air-jet loom gas path pipe ultrasonic wave is detected first, it is determined whether there is leakage；Then infrared thermal imaging technique is utilized, the Temperature Distribution of surface of position is revealed by analyzing, leakage point is determined；Finally to the temperature difference of compressed air leakage position in the system gas circuit that detects, the function temperature change relation that can be obtained with pressure and gas circuit aperture is analyzed, so as to obtain leakage rate.The invention also discloses the device for carrying out leak detection.The inventive method connected applications in the detection of air-jet loom compressed air leakage by ultrasonic wave and infrared technique, can fast and accurately be positioned to leak position, and carry out quantitative analysis to leakage, overcome the limitation of both exclusive uses.By the relation between analytical parameters, leakage Producing reason can be become more apparent upon, be easy to textile enterprise to carry out leakage repair according to self-condition and investment payback time or change part.
Description
Technical field
The invention belongs to industrial detection technical field, it is related to a kind of detection of air-jet loom compressed air leakage and quantitatively divides
Analysis method, the invention further relates to carry out the device of air-jet loom compressed air leakage detection.
Background technology
With the development of textile industry, increasing air-jet loom is widely used.Compressed air as power source,
Played an important role in Pneumatic Pressure, pneumatic conveying and pneumatic weft insertion.Air compression system provides the compression of certain pressure for air-jet loom
Air, including air compressor, equipment for after-treatment, gas transmission pipeline net work and ventilating and cooling facility, are the power sources of textile enterprise.
The wefting insertion of air-jet loom is exactly, using compressed air as carrier, to be produced when being discharged using compressed air by aperture
Weft yarn is drawn across shed open and completes its wefting insertion function by high velocity air.Picking motion is one of key of air-jet loom, to spray
The quality of gas loom plays a decisive role.The picking motion of air-jet loom is by gas source purification, air-flow regulation, gas circuit, main and auxiliary spray
The device compositions such as the magnetic valve of mouth and the main and auxiliary nozzle air current switch of control.
Due to the job specification of air-jet loom, the consumption of compressed air is different from other gas equipments, and its air consumption is accounted for
The 70% of total air demand, even more high.The air delivery system of air-jet loom is the compressed air warp come out by air compressor
The air cleaner crossed on pipe arrangement arrival loom, the air after filtering divides after the pressure regulation pressure regulating valve in air pressure adjustment case
It is sent to each performer of injection apparatus.At the scene, compressed air generation, transmit all exist leakage.Leakage makes compressed air
Ductwork pressure declines, and could meet the power demand of equipment by the power for lifting air compressor machine, supply gas pressure is higher, air compressor machine work(
Consumption is higher, while the leakage rate of compressed air is bigger.Leak position is concentrated mainly on air cleaner, pressure-reducing valve, magnetic valve, gas
Cylinder drive end bearing bracket, threaded connection, pipe network node etc..
The content of the invention
It is an object of the invention to provide a kind of detection and quantitative analysis method of air-jet loom compressed air leakage, to examine
Measured compressed air leaks situation and carries out quantitative analysis.
It is a further object of the present invention to provide a kind of air-jet loom compressed air leakage detection means.
The technical solution adopted in the present invention is that the detection and quantitative analysis method of air-jet loom compressed air leakage have
Body comprises the following steps：
Step 1, leakage has been detected whether：
Detect the change of air-jet loom gas path pipe ultrasonic wave, it is determined whether there is leakage；
Step 2, leakage point is determined：
After determining that pipeline has compressed air leakage through step 1, using infrared thermal imaging technique, by analyzing leakage position
The Temperature Distribution on surface, determines leakage point；
Step 3, quantitative analysis is revealed：
The temperature difference of compressed air leakage position in the system gas circuit detected to step 2, being analyzed to obtain
To the function temperature change relation with pressure and gas circuit aperture, so as to obtain leakage rate.
The features of the present invention is also resided in,
Step 1 is specially：When compressed air leakage occurs for air-jet loom gas path pipe, the turbulent flow that compressed air is produced will be
Leak position produces ultrasonic wave, and ultrasonic intensity is decayed with the increase of propagation distance in atmospheric environment, swept using ultrasonic wave
Retouch equipment to be scanned pipeline all directions, scanning device shows that obvious direction is the direction that leakage point is present.
Step 1 is specially：Because compressed air leakage produces noise in gas circuit, supersonic sounding device can distinguish adjoint
The high-frequency whooshing sound of compressed air leakage, gas path pipe of the ultrasonic intensity than hydraulically smooth surface of compressed air stream movable property life
Height, leak position can be detected by the difference of ultrasonic signal.
The leakage rate of Temperature Distribution value more low-pressure air is bigger in step 2.
Step 3 is specially：
Assuming that pipe compressed air is considered as perfect gas, gas is insulation flow in Bottomhole pressure, and gas is in leakage point
Equal entropy flux, by the equation of gas state, Poisson's equation and continuity equation, obtains compressed air aperture leakage flow formula such as
Under：
IfGas flowing belongs to velocity of sound flowing when then leaking, and now leakage rate is：
IfGas flowing belongs to subsonic flow when then leaking, and now leakage rate is：
Wherein：T is the temperature before gas is leaked, i.e. mean temperature in pipeline；P is the pressure before gas is leaked；K is gas
Body isentropic index；CdFor gas leadage coefficient, dimensionless, span is between 0.6-1.0；Z is compressibility factor, is a shape
State parameter, for perfect gas, Z=1 under any state；PaFor leaking medium pressure；M gas molar qualities；A is leakage hole face
Product,D is equivalent diameter.
Another technical scheme of the present invention is, a kind of air-jet loom compressed air leakage detection means, including aobvious
Show part, process part, detection part and Switching Power Supply；
Display portion includes liquid crystal display and LED display board；
Process part includes intelligent processor and image processor；
Detection part includes signal inductor, temperature inductor, ultrasonic probe, infrared detection head and infrared camera；
Liquid crystal display, LED display board, intelligent processor, signal inductor, temperature inductor, image processor, ultrasound
Detecting head, infrared detection head and infrared camera are connected with Switching Power Supply；Liquid crystal display, LED display board, signal inductor,
Temperature inductor and image processor are connected with intelligent processor；Signal inductor is connected with ultrasonic probe, infrared acquisition
Head is connected with temperature inductor, and image processor is connected with infrared camera.
The features of the present invention is also resided in,
LED display board is used to show leak case.
LED display board shows leakage situation with light beam joint number.
Also it is connected respectively with ultrasonic probe, intelligent processor and Switching Power Supply including noise induction device.
Liquid crystal display is used for the temperature and noise profile for showing leakage surface.
The beneficial effects of the invention are as follows the detection and quantitative analysis method of air-jet loom compressed air leakage, by ultrasonic wave
With infrared technique air-jet loom compressed air leakage detection in connected applications, leak position can fast and accurately be positioned, and
Quantitative analysis is carried out to leakage, the limitation of both exclusive uses is overcome., can be to leakage by the relation between analytical parameters
Producing reason becomes more apparent upon, and is easy to textile enterprise to carry out leakage repair or replacing portion according to self-condition and investment payback time
Part, is of great immediate significance for improving awareness of saving energy, the saving energy, reducing waste, raising profit.
Brief description of the drawings
Fig. 1 is structure of the detecting device schematic diagram of the present invention；
Fig. 2 is detection process schematic diagram of the present invention；
Fig. 3 is leakage rate and aperture and the relation of pressure；
Fig. 4 is leak temperature change and aperture and the relation of pressure；
Fig. 5 is leakage rate and temperature change and the relation of pressure.
In figure, 1. liquid crystal displays, 2.LED display boards, 3. intelligent processors, 4. signal inductors, 5. noise induction devices,
6. temperature inductor, 7. image processors, 8. ultrasonic probes, 9. infrared detection heads, 10. infrared cameras, 11. Switching Power Supplies,
12. detection means.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
The detection and quantitative analysis method of air-jet loom compressed air leakage of the present invention, involve thermal infrared imager using ultrasound
Leakage is detected and quantified, the detection means 12 used, as shown in figure 1, including display portion, process part, detection
Part and Switching Power Supply 11.
Display portion includes liquid crystal display 1 and LED display board 2, and liquid crystal display 1 is used for the temperature for showing leakage surface
And noise profile, LED display board 2 is with light beam joint number display leak case.
Process part includes intelligent processor 3 and image processor 7, and detection part includes signal inductor 4, noise induction
Device 5, temperature inductor 6, ultrasonic probe 8, infrared detection head 9 and infrared camera 10.
Liquid crystal display 1, LED display board 2, intelligent processor 3, signal inductor 4, noise induction device 5, temperature inductor
6th, image processor 7, ultrasonic probe 8, infrared detection head 9 and infrared camera 10 are connected with Switching Power Supply 11；Liquid crystal display
Device 1, LED display board 2, signal inductor 4, noise induction device 5, temperature inductor 6 and image processor 7 are and intelligent processor
3 connections；Signal inductor 4 and noise induction device 5 are connected with ultrasonic probe 8, and infrared detection head 9 is connected with temperature inductor 6,
Image processor 7 is connected with infrared camera 10.
The model KD043FM-2B of liquid crystal display 1；The model AN2g-P20-2R1G of LED display board 2；At intelligence
Manage the model celeron D 347 of device 3；The model Su30FL of signal inductor 4；The model of noise induction device 5
WST60M；The model TS-9100 of temperature inductor 6；The model LKV323 of image processor 7；The model of ultrasonic probe 8
For 2.5P20；The model MIK-AL-10 of infrared detection head 9；The model OM130H of infrared camera 10.
The process of detection specifically includes following steps：
Step 1, leak source is detected：
The compressed air leakage situation of air-jet loom system is detected using ultrasonic wave.
As shown in Fig. 2 the detection part of detection means 12 is aligned into jet loom for drawing weft yarn part, ultrasonic probe 8 is utilized
The ultrasonic signal and noise signal in air-jet loom system are detected, signal inductor 4 and noise sensitive device 5 are respectively received super
Acoustic signals and noise signal, and send intelligent processor 3 to, the ultrasonic signal after processing imports LED display board 2, conversion
Shown for light beam joint number.After noise signal is handled through intelligent processor 3, transmit in the form of a signal to liquid crystal display 1,
The display noise of liquid crystal display 1 decibel situation.And then determine whether there is leakage situation.
Principle is：
1. the change of ultrasonic signal is utilized, leakage is detected.
Gas always flows to low pressure by high pressure, when compressed air leakage, compressed air production occur for air-jet loom gas path pipe
Raw turbulent flow will produce ultrasonic wave in leak.Ultrasonic wave is high-frequency short waves signal, its intensity in atmospheric environment with propagate away from
From increase and decay, make ultrasonic wave that there is directive property, using intelligent recognition function, where can accurately judging leakage point
Position.The light beam joint number that LED is shown can determine the direction of leakage point, and light beam joint number is more, represent leakage point in detection device
Possibility present on the direction that front is pointed to is bigger, and specific direction passes through each orientation in front of device scan, Bar graphic display section
The more directions of number are the direction that leakage point is present.
2. the change of noise signal is utilized, leakage is detected.
Because compressed air leakage produces noise in gas circuit, ultrasonic detector can be distinguished with compressed air leakage
High-frequency whooshing sound.The ultrasonic intensity of compressed air stream movable property life is higher by several times than the gas path pipe of hydraulically smooth surface, passes through
The difference of ultrasonic signal can detect leak position.
Step 2, leakage point is determined：
Pair determine possibility leakage position utilize detection means in infrared detection head 9 recognize leak position radiant heat energy,
Leak position surface temperature distribution is caught using infrared camera 10, the information of acquisition is respectively through temperature inductor 6 and image procossing
Device 7 is transmitted after pre-processing to intelligent processor 3, and thermal radiation information and corresponding Temperature Distribution are integrated, obtained by intelligent processor 3
Heat radiation images, and shown on liquid crystal display 1.Pass through the distribution of temperature in heat radiation figure, you can determine leakage point.
Test shows that the increase of pressure causes the compressed air temperature reduction for flowing through hole, and temperature difference is with the increase in aperture
Reduce.The leakage of compressed air produces Temperature Distribution with the progress of time in air-jet loom, and Temperature Distribution value gets over low-pressure air
Leakage rate it is bigger.The corresponding relation of compressed air leakage amount and Temperature Distribution is can obtain by test.Existed according to compressed air
The Temperature Distribution of leakage point, can be to leakage quantitative analysis.
Step 3, quantitative analysis is revealed：
The temperature difference of compressed air leakage position in the system gas circuit detected to step 2, being analyzed to obtain
To the function temperature change relation with pressure and gas circuit aperture.
Compressed air piping leakage be generally aperture leakage, generally by circular hole leak based on set up leak model, work as hole
When mouth is irregular, calculating parameter is used as using equivalent diameter.Assuming that：Pipe compressed air is considered as perfect gas；Gas is in pipe
Flow for insulation flow；Gas is equal entropy flux in leakage point.Applied fluid mechanics continuity equation, momentum conservation equation and energy
Amount conservation equation can be described to gas flow.By the equation of gas state, Poisson's equation and continuity equation, pressed
Contracting air orifices leakage flow formula is as follows：
IfGas flowing belongs to velocity of sound flowing (critical flow) when then leaking, and now leakage rate is：
IfGas flowing belongs to subsonic flow (subcritical flow) when then leaking, now leakage rate
For：
Wherein：T is the temperature before gas is leaked, i.e. mean temperature in pipeline；P is the pressure before gas is leaked；K is gas
Body isentropic index；CdFor gas leadage coefficient, dimensionless, span is between 0.6-1.0；Z is compressibility factor, is a shape
State parameter, for perfect gas, Z=1 under any state；PaFor leaking medium pressure；M gas molar qualities；A is leakage hole face
Product,D is equivalent diameter.
Ultrasound involves infrared technique in the application practice of detection air-jet loom compressed air leakage, it is seen that both are each
From limitation.Ultrasonic wave can be accurately positioned for occurring the position of compressed air leakage.Infrared technique passes through to leak position
Thermal image carries out heat analysis, and leak position can be screened.Based on above-mentioned analysis it is concluded that:Ultrasonic wave and infrared
Technology can all carry out leak detection to jet loom for drawing weft yarn mechanism gas path pipe, and for leakage quantitative analysis, infrared technique is more
Plus it is reliable.Because ultrasonic hash level is identical with the noise level in detected aperture and pressure, it is impossible to show that compression is empty
The difference of throughput.The heat of gas path pipe and compressed air stream via can be obtained using infrared technique, by leakage position
Progress heat is put to when heat analysis, it is quantitative to leakage.Based on this, the present invention proposes a kind of thinking：By ultrasonic wave and infrared skill
Art connected applications in the detection of air-jet loom compressed air leakage.The former can fast and accurately position to leak position, Hou Zheke
Quantitative analysis is carried out to leakage.Avoid the limitation of both exclusive uses.
By using ultrasonic wave and infrared technique to the leak detection of jet loom for drawing weft yarn mechanism gas circuit and quantitative, it can obtain
To the relevant parameter of leakage：Noise level, aperture, pressure and temperature difference., can be to leakage by the relation between analytical parameters
Producing reason becomes more apparent upon, and is easy to textile enterprise to carry out leakage repair or replacing portion according to self-condition and investment payback time
Part, for improve awareness of saving energy, save the energy, reduce waste, improve profit be of great immediate significance, and to equipment after
Maintenance have the cognition become apparent from.Ultrasonic wave is equally applicable to compressed air with infrared technique and leaked in other Weaving devices
Detection, contributes to us to understand the overall leakage of working site with reference to air compression system.
0.5mm, 0.7mm, 1.0mm, 1.3mm, 1.5mm, 2.0mm hole are dug out respectively on steel pipe, respectively to each hole
Parameter (noise level, aperture, pressure and temperature change) under 0.4MPa, 0.5MPa, 0.6MPa, 0.7MPa, 0.8MPa is entered
Row measurement, to set up its correlation.
Found by measuring, the compressed air leakage amount at leakage point increases with the increase of aperture and pressure, in steel pipe
Upper aperture leakage rate and the result of aperture and pressure are as shown in Figure 3.Steel pipe hole leak sound is measured by ultrasonic detector
Intensity, experiment is found when hole leakage rate and the intensity of sound of generation increase therewith in pressure increase, steel pipe.Surveyed using infrared technique
Dimension pore leak temperature difference, analyzes its thermal imaging and Temperature Distribution, it is found that the increase of pressure causes to compress at hole on steel pipe
The temperature drop of air, the increase of hole leak temperature difference.The temperature change in hole and aperture and result such as Fig. 4 institutes of pressure on steel pipe
Show.Fig. 5 represents the relation between hole leakage flow and hole temperature change and pressure on steel pipe.
Claims (10)
1. the detection and quantitative analysis method of air-jet loom compressed air leakage, it is characterised in that specifically include following steps：
Step 1, leakage has been detected whether：
Detect the change of air-jet loom gas path pipe ultrasonic wave, it is determined whether there is leakage；
Step 2, leakage point is determined：
After determining that pipeline has compressed air leakage through step 1, using infrared thermal imaging technique, by analyzing leakage surface of position
Temperature Distribution, determine leakage point；
Step 3, quantitative analysis is revealed：
The temperature difference of compressed air leakage position in the system gas circuit detected to step 2, be analyzed can obtain with
Pressure and the function temperature change relation in gas circuit aperture, so as to obtain leakage rate.
2. the detection and quantitative analysis method of air-jet loom compressed air leakage according to claim 1, it is characterised in that
The step 1 is specially：When compressed air leakage occurs for air-jet loom gas path pipe, the turbulent flow that compressed air is produced will be in leakage
Position produces ultrasonic wave, and ultrasonic intensity is decayed with the increase of propagation distance in atmospheric environment, set using ultrasonic scanning
Standby that pipeline all directions are scanned, scanning device shows that obvious direction is the direction that leakage point is present.
3. the detection and quantitative analysis method of air-jet loom compressed air leakage according to claim 1, it is characterised in that
The step 1 is specially：Because compressed air leakage produces noise in gas circuit, supersonic sounding device can be distinguished with compression
The high-frequency whooshing sound of air leakage, the ultrasonic intensity of compressed air stream movable property life is higher than the gas path pipe of hydraulically smooth surface,
Leak position can be detected by the difference of ultrasonic signal.
4. the detection and quantitative analysis method of air-jet loom compressed air leakage according to claim 1, it is characterised in that
The leakage rate of Temperature Distribution value more low-pressure air is bigger in the step 2.
5. the detection and quantitative analysis method of air-jet loom compressed air leakage according to claim 1, it is characterised in that
The step 3 is specially：
Assuming that pipe compressed air is considered as perfect gas, gas is insulation flow in Bottomhole pressure, and gas is constant entropy in leakage point
Flowing, by the equation of gas state, Poisson's equation and continuity equation, obtains compressed air aperture leakage flow formula as follows：
IfGas flowing belongs to velocity of sound flowing when then leaking, and now leakage rate is：
IfGas flowing belongs to subsonic flow when then leaking, and now leakage rate is：
Wherein：T is the temperature before gas is leaked, i.e. mean temperature in pipeline；P is the pressure before gas is leaked；K is gas etc.
Entropy index；CdFor gas leadage coefficient, dimensionless, span is between 0.6-1.0；Z is compressibility factor, is a state ginseng
Number, for perfect gas, Z=1 under any state；PaFor leaking medium pressure；M gas molar qualities；A is leakage open area,D is equivalent diameter.
6. a kind of air-jet loom compressed air leakage detection means, it is characterised in that including display portion, process part, detection
Part and Switching Power Supply (11)；
Display portion includes liquid crystal display (1) and LED display board (2)；
Process part includes intelligent processor (3) and image processor (7)；
Detection part includes signal inductor (4), temperature inductor (6), ultrasonic probe (8), infrared detection head (9) and infrared
Camera (10)；
Liquid crystal display (1), LED display board (2), intelligent processor (3), signal inductor (4), temperature inductor (6), image
Processor (7), ultrasonic probe (8), infrared detection head (9) and infrared camera (10) are connected with Switching Power Supply (11)；Liquid crystal
Display (1), LED display board (2), signal inductor (4), temperature inductor (6) and image processor (7) are and Intelligent treatment
Device (3) is connected；Signal inductor (4) is connected with ultrasonic probe (8), and infrared detection head (9) is connected with temperature inductor (6),
Image processor (7) is connected with infrared camera (10).
7. a kind of air-jet loom compressed air leakage detection means according to claim 6, it is characterised in that the LED
Display board (2) is used to show leak case.
8. a kind of air-jet loom compressed air leakage detection means according to claim 6, it is characterised in that LED is shown
Plate (2) shows leakage situation with light beam joint number.
9. a kind of air-jet loom compressed air leakage detection means according to claim 6, it is characterised in that also including making an uproar
Sound inductor (5) is connected with ultrasonic probe (8), intelligent processor (3) and Switching Power Supply (11) respectively.
10. a kind of air-jet loom compressed air leakage detection means according to claim 9, it is characterised in that the liquid
Crystal display (1) is used for the temperature and noise profile for showing leakage surface.
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Cited By (3)
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| CN108799840A (en) * | 2018-05-04 | 2018-11-13 | 中国人民解放军92942部队 | Steam pipework on-line monitoring system based on infrared imaging and ultrasonic signal |
| CN111059695A (en) * | 2019-12-26 | 2020-04-24 | 珠海格力电器股份有限公司 | Omnibearing detection device and method for detecting refrigerant leakage of air conditioner |
| CN113588176A (en) * | 2021-07-08 | 2021-11-02 | 浙江焜腾红外科技有限公司 | Infrared imaging system for volatile gas monitoring |
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