CN107061998A - Wall inner conduit leakage inspector and detection process system - Google Patents
Wall inner conduit leakage inspector and detection process system Download PDFInfo
- Publication number
- CN107061998A CN107061998A CN201710191982.0A CN201710191982A CN107061998A CN 107061998 A CN107061998 A CN 107061998A CN 201710191982 A CN201710191982 A CN 201710191982A CN 107061998 A CN107061998 A CN 107061998A
- Authority
- CN
- China
- Prior art keywords
- acoustic wave
- surface acoustic
- inner conduit
- wall inner
- leakage inspector
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
- G01M3/243—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to a kind of wall inner conduit leakage inspector and detection process system, including surface acoustic wave sensor and waterproof material cover, the surface acoustic wave sensor is wrapped up after being located on aqueduct by the waterproof material cover.Compared with prior art, the surface acoustic wave pressure sensor that the present invention is used is fixed at the inwall of wall inner conduit and is not affected by the surrounding environment, and the sensor is able to detect that the change of 0-30g power, and accuracy of detection is high, the leakage of any small current can be fed back, and be repaired in time.The sensor arrangement feeds back to terminal by data processing, has saved manpower and materials, improve efficiency in the maximum water pipe turning of leak possibility, Real-time Monitoring Data change.
Description
Technical field
The present invention relates to a kind of leak water detdction treatment technology, more particularly, to a kind of wall inner conduit leakage inspector and
Detection process system.
Background technology
The development built with city river network and urban planning demand, the water supply of building construction and drainage pipeline are commonly installed
Inside wall, due to lacking the leakage inspector of pipeline, cause drainage in wall increasingly serious, influence normal water is followed
Ring so that wall is moist or mouldy, directly affects the routine work and life of people.It is arranged in view of water pipe in wall
Portion, thus the method for commonplace artificial detection now wastes time and energy, is both that cost is very high and inefficiency.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind is based on surface acoustic wave
The wall inner conduit leakage inspector and detection process system of sensor.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of wall inner conduit leakage inspector, including surface acoustic wave sensor and waterproof material cover, the sound surface
Wave sensor is wrapped up after being located on aqueduct by the waterproof material cover.
The flexible substrate for arranging surface acoustic wave sensor is additionally provided with the aqueduct, the flexible substrate is located at
On the inside of waterproof material cover.
The surface acoustic wave sensor includes two pieces of piezoelectric substrates, two pieces of piezoelectric pads and two groups of output interdigitals
Transducer, two pieces of piezoelectric pads connect two pieces of piezoelectric substrates and form hollow inner chamber, two groups of interdigital transducings
Device is located in inner chamber, and is individually fixed on two pieces of piezoelectric substrates.
The interdigital transducer is delay line type interdigital transducer, and it is interdigital that every group of interdigital transducer at least includes an input
Transducer and output interdigital transducer, and input interdigital transducer and output interdigital transducer are individually fixed in piezoelectric substrate
Two ends.
It is arch at the top of the waterproof material cover.
A kind of detection process system, including alarm and two relative leakage inspectors for being located at aqueduct inwall,
The leakage inspector is connected with alarm.
The alarm is buzzer or indicator lamp.
Compared with prior art, the present invention has advantages below：
1) surface acoustic wave pressure sensor used is fixed at the inwall of wall inner conduit without the shadow by surrounding environment
Ring, the sensor is able to detect that the change of 0-30g power, accuracy of detection is high, and the leakage of any small current can be obtained instead
Feedback, is repaired in time.The sensor arrangement is led in the maximum water pipe turning of leak possibility, Real-time Monitoring Data change
Cross data processing and feed back to terminal, saved manpower and materials, improve efficiency.
2) interference that substrate heat conductivity and electrode directly contact flow field stream field can be reduced, with stronger anti-interference energy
Power.
3) two surface acoustic wave sensors being oppositely arranged are configured with, can consider that each surface of water pipe occurs simultaneously broken
Split, the situation of leak, accomplish monitoring in time and comprehensively.
4) surface acoustic wave pressure sensor is used as detecting instrument, it is possible to achieve passive, wireless working method, accomplish
Monitoring in real time；Such device operationally, with stability it is high, it is low in energy consumption the characteristics of, improve detection efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of invention detection process system；
Fig. 2 is Fig. 1 partial enlarged drawing；
Fig. 3 is the structural representation of SAW device；
Wherein：1st, aqueduct, 2, waterproof material, 3, surface acoustic wave sensor, 4, flexible substrate, 5, piezoelectric base
Piece, 6, input interdigital transducer, 7, output interdigital transducer.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
A kind of wall inner conduit leakage inspector, it is shown as shown in FIG. 1 to 3, including surface acoustic wave sensor 3 and anti-
Water material 2, waterproof material 2 is a kind of cover of waterproof, surface acoustic wave sensor 3 on aqueduct 1 after by waterproof material
Material 2 is wrapped up.
The flexible substrate 4 for arranging surface acoustic wave sensor 3 is additionally provided with aqueduct 1, flexible substrate 4 is located at waterproof
The inner side of material 2.
The surface acoustic wave pressure sensor of use is fixed at the inwall of wall inner conduit and is not affected by the surrounding environment,
The sensor is able to detect that the change of 0-30g power, and accuracy of detection is high, and the leakage of any small current can be fed back,
Repaired in time.The sensor arrangement passes through number in the maximum water pipe turning of leak possibility, Real-time Monitoring Data change
Terminal is fed back to according to processing, manpower and materials have been saved, efficiency is improved.
Surface acoustic wave sensor 3 is changed including two pieces of piezoelectric substrates 5, two pieces of piezoelectric pads and two groups of output interdigitals
Energy device 7, two pieces of piezoelectric pads connect two pieces of piezoelectric substrates 5 and simultaneously form hollow inner chamber, and two groups of interdigital transducers are equal
In inner chamber, and it is individually fixed on two pieces of piezoelectric substrates 5.Substrate heat conductivity and electrode can be reduced and directly contact stream
The interference of field stream field, with stronger antijamming capability.
Interdigital transducer is delay line type interdigital transducer, and every group of interdigital transducer at least includes an interdigital transducing of input
Device 6 and output interdigital transducer 7, and input interdigital transducer 6 and output interdigital transducer 7 are individually fixed in piezoelectric substrate
5 two ends.
The top of waterproof material 2 is arch.
A kind of detection process system containing above-mentioned leakage inspector, as depicted in figs. 1 and 2, including alarm and two
The individual relative leakage inspector for being located at the inwall of aqueduct 1, leakage inspector is connected with alarm, and alarm is buzzer
Or indicator lamp.Two surface acoustic wave sensors being oppositely arranged 3 are configured with, can consider that each surface of water pipe occurs simultaneously broken
Split, the situation of leak, accomplish monitoring in time and comprehensively.
It is under pressure the performance strained using quartzy thin slice when acting on, uses it for SAW delay line, then
Delay line is used for SAW oscillator, making the change of pressure causes the change of frequency of oscillation, and the change passes through data acquisition
System is transferred to server, finally feeds back to monitor terminal, and terminal sends alarm signal, and prompting has water leakage situation.
Specifically, when the substrate piezoelectric of sensor is acted on by water droplet pressure, material internal produces strain, pass through pressure
The non-linear elasticity of electric material, makes elastic constant, density of material etc. change with external force, causes acoustic surface wave propagation speed
The change of degree.Meanwhile, the physical dimension of SAW device changes, so as to cause the change of surface acoustic wave wavelength.Propagate
Speed and wavelength change cause resonant frequency f change jointly, so as to judge that outlet pipe has rupture, occur leak, carry out in time
Repairing, loss is minimized.
Claims (7)
1. a kind of wall inner conduit leakage inspector, it is characterised in that including surface acoustic wave sensor (3) and waterproof material cover
(2) wrapped up after, the surface acoustic wave sensor (3) is on aqueduct (1) by the waterproof material cover (2).
2. a kind of wall inner conduit leakage inspector according to claim 1, it is characterised in that the aqueduct
(1) flexible substrate (4) for arranging surface acoustic wave sensor (3) is additionally provided with, the flexible substrate (4) is located at waterproof material
Cover on the inside of (2).
3. a kind of wall inner conduit leakage inspector according to claim 1, it is characterised in that the surface acoustic wave is passed
Sensor (3) includes two pieces of piezoelectric substrates (5), two pieces of piezoelectric pads and two groups of output interdigital transducers, described two pieces
Piezoelectric pad connects two pieces of piezoelectric substrates (5) and forms hollow inner chamber, and two groups of interdigital transducers are located at inner chamber
In, and be individually fixed on two pieces of piezoelectric substrates (5).
4. a kind of wall inner conduit leakage inspector according to claim 3, it is characterised in that the interdigital transducer
For delay line type interdigital transducer, every group of interdigital transducer at least includes an input interdigital transducer (6) and output interdigital is changed
Energy device (7), and input interdigital transducer (6) and output interdigital transducer (7) are individually fixed in the two of piezoelectric substrate (5)
End.
5. a kind of wall inner conduit leakage inspector according to claim 1, it is characterised in that the waterproof material cover
(2) top is arch.
6. a kind of detection process system containing the leakage inspector as described in any in Claims 1 to 5, it is characterised in that
Including alarm and two relative leakage inspectors for being located at aqueduct (1) inwall, the leakage inspector and alarm
Device is connected.
7. detection process system according to claim 6, it is characterised in that the alarm is buzzer or indicator lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710191982.0A CN107061998A (en) | 2017-03-28 | 2017-03-28 | Wall inner conduit leakage inspector and detection process system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710191982.0A CN107061998A (en) | 2017-03-28 | 2017-03-28 | Wall inner conduit leakage inspector and detection process system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061998A true CN107061998A (en) | 2017-08-18 |
Family
ID=59618093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710191982.0A Pending CN107061998A (en) | 2017-03-28 | 2017-03-28 | Wall inner conduit leakage inspector and detection process system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061998A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2573992A (en) * | 2018-04-11 | 2019-11-27 | Disonics Ltd | Leak detector |
Citations (7)
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|---|---|---|---|---|
| CN103499024A (en) * | 2013-10-22 | 2014-01-08 | 天津七一二通信广播有限公司 | Surface acoustic wave pressure sensor for oil pipeline leak detection system |
| CN203773697U (en) * | 2014-03-31 | 2014-08-13 | 淮南联合大学 | Coal gas leakage detection and control system |
| EP2833113A1 (en) * | 2012-03-30 | 2015-02-04 | Nec Corporation | Leak detection method, water leakage detection method, leak detection device, and water leakage detection device |
| CN104919295A (en) * | 2012-12-11 | 2015-09-16 | 管道监控公司 | System and method for supervising, managing, and monitoring the structural integrity of a fluid- transportation pipeline network, for locating the leaking point, and for evaluating the extent of the failure |
| CN105806429A (en) * | 2016-04-20 | 2016-07-27 | 哈尔滨圣昌科技开发有限公司 | Pipeline leak and pipe burst detection method of ultrasonic water meter |
| CN205785612U (en) * | 2016-06-01 | 2016-12-07 | 上海工程技术大学 | A kind of surface acoustic wave sensor based on microgap pressure monitoring |
| CN207095800U (en) * | 2017-03-28 | 2018-03-13 | 上海工程技术大学 | Leak water detdction processing system |
-
2017
- 2017-03-28 CN CN201710191982.0A patent/CN107061998A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2833113A1 (en) * | 2012-03-30 | 2015-02-04 | Nec Corporation | Leak detection method, water leakage detection method, leak detection device, and water leakage detection device |
| CN104919295A (en) * | 2012-12-11 | 2015-09-16 | 管道监控公司 | System and method for supervising, managing, and monitoring the structural integrity of a fluid- transportation pipeline network, for locating the leaking point, and for evaluating the extent of the failure |
| CN103499024A (en) * | 2013-10-22 | 2014-01-08 | 天津七一二通信广播有限公司 | Surface acoustic wave pressure sensor for oil pipeline leak detection system |
| CN203773697U (en) * | 2014-03-31 | 2014-08-13 | 淮南联合大学 | Coal gas leakage detection and control system |
| CN105806429A (en) * | 2016-04-20 | 2016-07-27 | 哈尔滨圣昌科技开发有限公司 | Pipeline leak and pipe burst detection method of ultrasonic water meter |
| CN205785612U (en) * | 2016-06-01 | 2016-12-07 | 上海工程技术大学 | A kind of surface acoustic wave sensor based on microgap pressure monitoring |
| CN207095800U (en) * | 2017-03-28 | 2018-03-13 | 上海工程技术大学 | Leak water detdction processing system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2573992A (en) * | 2018-04-11 | 2019-11-27 | Disonics Ltd | Leak detector |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |
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| RJ01 | Rejection of invention patent application after publication |