CN203023810U - Novel pipeline leakage non-destructive testing device - Google Patents
Novel pipeline leakage non-destructive testing device Download PDFInfo
- Publication number
- CN203023810U CN203023810U CN 201220756205 CN201220756205U CN203023810U CN 203023810 U CN203023810 U CN 203023810U CN 201220756205 CN201220756205 CN 201220756205 CN 201220756205 U CN201220756205 U CN 201220756205U CN 203023810 U CN203023810 U CN 203023810U
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- piezoelectric ceramic
- pipeline
- pressure head
- isolating plate
- supporting base
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Abstract
The utility model provides a novel pipeline leakage non-destructive testing device which comprises a sealing pressure head, a sensor outer barrel, a support seat, a weak signal amplifier, an isolation plate, a sealing ring, a piezoelectric ceramic piece and a compression spring, wherein the lower end of the sensor outer barrel is fixed on the support seat, and the upper end of the sensor outer barrel is connected with the sealing pressure head by screw thread; the isolation plate and the sealing ring are arranged at the port of the upper end of the sensor outer barrel; the piezoelectric ceramic piece is supported on the support seat by the compression spring; the weak signal amplifier is arranged on the isolation plate, is positioned in a cavity between the isolation plate and the sealing pressure head, and is connected with the piezoelectric ceramic piece by a signal wire; the lower end of the support seat is provided with a circular fixing part; and three probes are respectively arranged at the left end, the right end and the lower end of the fixing part. The novel pipeline leakage non-destructive testing device improves the sensitivity of capturing pipeline leakage signals, and is not interfered and influenced by other signals except the pipeline leakage signals, and is suitable for pressure fluid pipelines with different pipe diameters; and the operations such as punching and the like do not need to be carried out on the pipeline, so that the pipeline is not damaged.
Description
Technical field
The utility model relates to a kind of detection device for gas pipeline, oil transmission pipeline, the leakage of water pipe equal pressure fluid line, relates in particular to a kind of novel pipeline and leaks the cannot-harm-detection device.
Background technique
Be embedded in underground gas pipeline, oil transmission pipeline, water pipe equal pressure fluid line because laying work area is wide, its leakage point is not easy in time to be found after leaking appears in pipeline, thereby cause the loss and waste of resource, and may bring potential safety hazard and environmental pollution.
At present, detection for pipeline leakage signal is mainly to rely on pressure transducer and ultrasonic wave sensor, pressure transducer as signal detection component, by the comparison of voltage signal and pressure size, carries out the demarcation of pressure transducer with the higher piezoelectric crystal of sensitivity.But mainly there is the defective of two aspects in pressure transducer: one, pressure transducer is expensive, has increased the cost of pipeline leakage testing control system; Two, Sensitivity in Pressure Sensors is high, in actual use, because the normal pressure surge meeting of pipeline inner fluid self brings larger noise to the detection of leakage signal, thereby is unfavorable for detection and the processing of leakage signal, easily causes the erroneous judgement of system.Ultrasonic wave sensor has effect clearly in noise suppression, but ultrasonic wave sensor only limits to the input of supersonic range scope, and some leakage signal outside the supersonic range scope is not had detection effect, therefore be unfavorable for the detection of leakage signal.
The model utility content
The utility model provides a kind of novel pipeline to leak the cannot-harm-detection device, can the leakage signal of any frequency range in the pressure fluid pipeline be detected, can damage and failure pressure fluid pipeline and be applicable to the pressure fluid pipeline of different tube diameters.
the technical solution of the utility model is: a kind of novel pipeline leaks the cannot-harm-detection device, comprise the sealing pressure head, the sensor urceolus, supporting base, the small signals amplification device, isolating plate, seal ring, piezoelectric ceramic, Compress Spring, described sensor urceolus lower end is fixed on supporting base, the upper end is threaded connection with the sealing pressure head, described isolating plate is positioned at port, sensor urceolus upper end, described seal ring is between sensor urceolus upper end end face and isolating plate, it is inner that described piezoelectric ceramic and Compress Spring are positioned at the sensor urceolus, described piezoelectric ceramic is supported on supporting base by Compress Spring, the small signals amplification device is arranged on isolating plate, in cavity between isolating plate and sealing pressure head, and be connected with piezoelectric ceramic by signaling line, it is characterized in that: described supporting base lower end is provided with a circular fixed block, described fixed block left end, right-hand member, the lower end respectively is provided with a probe, be provided with slidably electromagnetism spare in described any probe, described probe is provided with one deck protecting jacket outward.
Further, the material of described protecting jacket is the antimagnetic material of waterproof.
The beneficial effects of the utility model are: piezoelectric ceramic of the present utility model is supported on supporting base by Compress Spring, and be connected with the small signals amplification device by signaling line, improve the sensitivity that device is caught pipeline leakage signal, and be not subjected to the interference effect of other signals outside pipeline leakage signal; In addition, the fixed block of supporting base lower end can be applicable to the pressure fluid pipeline of different tube diameters by the electromagnetism spare that adjusting is popped one's head in, and need not to carry out the operations such as perforate on pipeline, can injury to pipeline.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein:
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is made brief description.
as shown in the figure: a kind of novel pipeline leaks the cannot-harm-detection device, comprise sealing pressure head 1, sensor urceolus 2, supporting base 3, small signals amplification device 4, isolating plate 5, seal ring 6, piezoelectric ceramic 7, Compress Spring 8, sensor urceolus 2 lower ends are fixed on supporting base 3, the upper end is threaded connection with sealing pressure head 1, isolating plate 5 is positioned at sensor urceolus 2 ports, upper end, seal ring 6 is between sensor urceolus 2 upper end end faces and isolating plate 5, piezoelectric ceramic 7 and Compress Spring 8 are positioned at sensor urceolus 2 inside, piezoelectric ceramic 7 is supported on supporting base 3 by Compress Spring 8, small signals amplification device 4 is arranged on isolating plate 5, in cavity between isolating plate 5 and sealing pressure head 1, and be connected with piezoelectric ceramic 7 by signaling line, supporting base 3 lower ends are provided with a circular fixed block 9, fixed block 9 left ends, right-hand member, the lower end respectively is provided with a probe 10, be provided with slidably electromagnetism spare 11 in probe 10 arbitrarily, the outer one deck protecting jacket 12 that is provided with of probe 10, the material of protecting jacket 12 is the antimagnetic material of waterproof.
working method: during use, the circular fixed block 9 of this device is arranged on the pressure fluid pipeline, by pop one's head in 10 slidably electromagnetism spare 11 of adjusting, supporting base 3 lower end surfaces and pressure fluid pipeline external surface are fitted, when tested pipeline occurs to leak, the oscillating signal that pipeline transmits is by supporting base 3, Compress Spring 8 passes to piezoelectric ceramic 7, piezoelectric ceramic 7 passes to small signals amplification device 4 by signaling line with vibration again, this device is sent to main control centre with the signal that detects, main control centre is by computing, pipeline is carried out the judgement of Leak testtion and leakage point position.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., within all should still belonging to patent covering scope of the present utility model.
Claims (2)
1. a novel pipeline leaks the cannot-harm-detection device, comprise the sealing pressure head, the sensor urceolus, supporting base, the small signals amplification device, isolating plate, seal ring, piezoelectric ceramic, Compress Spring, described sensor urceolus lower end is fixed on supporting base, the upper end is threaded connection with the sealing pressure head, described isolating plate is positioned at port, sensor urceolus upper end, described seal ring is between sensor urceolus upper end end face and isolating plate, it is inner that described piezoelectric ceramic and Compress Spring are positioned at the sensor urceolus, described piezoelectric ceramic is supported on supporting base by Compress Spring, the small signals amplification device is arranged on isolating plate, in cavity between isolating plate and sealing pressure head, and be connected with piezoelectric ceramic by signaling line, it is characterized in that: described supporting base lower end is provided with a circular fixed block, described fixed block left end, right-hand member, the lower end respectively is provided with a probe, be provided with slidably electromagnetism spare in described any probe, described probe is provided with one deck protecting jacket outward.
2. a kind of novel pipeline leaks the cannot-harm-detection device according to claim 1, and it is characterized in that: the material of described protecting jacket is the antimagnetic material of waterproof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220756205 CN203023810U (en) | 2012-12-27 | 2012-12-27 | Novel pipeline leakage non-destructive testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220756205 CN203023810U (en) | 2012-12-27 | 2012-12-27 | Novel pipeline leakage non-destructive testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023810U true CN203023810U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220756205 Expired - Fee Related CN203023810U (en) | 2012-12-27 | 2012-12-27 | Novel pipeline leakage non-destructive testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023810U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150247823A1 (en) * | 2012-09-14 | 2015-09-03 | Korea Electric Power Corporation | Pipeline inspection device and pipeline inspection system |
| CN110206552A (en) * | 2019-06-21 | 2019-09-06 | 中国电建集团成都勘测设计研究院有限公司 | Pressure sensitive system for rock tunnel(ling) machine shield body |
-
2012
- 2012-12-27 CN CN 201220756205 patent/CN203023810U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150247823A1 (en) * | 2012-09-14 | 2015-09-03 | Korea Electric Power Corporation | Pipeline inspection device and pipeline inspection system |
| US9709532B2 (en) * | 2012-09-14 | 2017-07-18 | Korea Electric Power Corporation | Pipeline inspection device and pipeline inspection system |
| CN110206552A (en) * | 2019-06-21 | 2019-09-06 | 中国电建集团成都勘测设计研究院有限公司 | Pressure sensitive system for rock tunnel(ling) machine shield body |
| CN110206552B (en) * | 2019-06-21 | 2024-04-19 | 中国电建集团成都勘测设计研究院有限公司 | Pressure sensing system for shield body of tunnel boring machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20151227 |
|
| EXPY | Termination of patent right or utility model |