CN209929568U - Watertight piezoelectric ultrasonic detection probe-cable connection structure - Google Patents

Watertight piezoelectric ultrasonic detection probe-cable connection structure Download PDF

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Publication number
CN209929568U
CN209929568U CN201920762884.2U CN201920762884U CN209929568U CN 209929568 U CN209929568 U CN 209929568U CN 201920762884 U CN201920762884 U CN 201920762884U CN 209929568 U CN209929568 U CN 209929568U
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China
Prior art keywords
watertight connector
watertight
connector plug
coaxial cable
probe
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CN201920762884.2U
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Chinese (zh)
Inventor
王怀江
吴昊
刘雪源
袁东野
张金龙
魏晨亮
路通
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China National Offshore Oil Technology Inspection Co Ltd
CNOOC Energy Technology and Services Ltd
CNOOC Energy Development of Equipment and Technology Co Ltd
Original Assignee
China National Offshore Oil Technology Inspection Co Ltd
CNOOC Energy Technology and Services Ltd
CNOOC Energy Development of Equipment and Technology Co Ltd
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Application filed by China National Offshore Oil Technology Inspection Co Ltd, CNOOC Energy Technology and Services Ltd, CNOOC Energy Development of Equipment and Technology Co Ltd filed Critical China National Offshore Oil Technology Inspection Co Ltd
Priority to CN201920762884.2U priority Critical patent/CN209929568U/en
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Abstract

The utility model discloses a watertight type piezoelectricity ultrasonic detection probe-cable junction structure, this structure include with piezoelectricity ultrasonic probe shell integrated into one piece's watertight connector socket and with coaxial cable connection's watertight connector plug, watertight connector plug cartridge is on the watertight connector socket, it is equipped with O type circle to connect the nut between the two, watertight connector plug adopts the coupling nut lock solid on the watertight connector socket, the coupling nut suit is on the watertight connector plug, and with watertight connector socket threaded connection, be connected with the honeycomb duct of suit in the coaxial cable outside on the coupling nut, it has sealed solid of glue all to encapsulate between coaxial cable and honeycomb duct and watertight connector plug and between honeycomb duct and the coupling nut. The utility model discloses can guarantee that piezoelectricity ultrasonic transducer normally works under high-pressure liquid environment, greatly promote the work efficiency of ultrasonic transducer installation/change.

Description

Watertight piezoelectric ultrasonic detection probe-cable connection structure
Technical Field
The utility model belongs to the technical field of detect in the supersound, especially a watertight type piezoelectricity ultrasonic testing probe-cable junction structure.
Background
With the development of the oil and gas industry and the increase of the energy demand of the related industry, the development of the long-distance oil and gas transportation pipeline in China is rapid, and by the end of 2025 years, the oil and gas pipeline in China is expected to reach 25 kilometers, wherein the oil pipeline of a crude oil finished product can reach about 8 kilometers. The oil gas pipeline all can lead to the fact corruption to the pipe wall metal at the inside transport medium of operation in-process pipeline and peripheral geographical environment, thereby can lead to the fact the stress concentration in corrosion zone to produce the crackle under the effect of external and pipeline internal pressure, crack extension on the pipe wall will take place to leak to a certain extent. In order to ensure the safe operation of oil and gas pipelines, the regular inspection of the corrosion condition of the pipelines and the timely maintenance become necessary measures for the management of the integrity of the pipelines, and the internal detection is the best way for acquiring the integrity data of the pipelines.
At present, piezoelectric ultrasonic intelligent internal detection is one of important means of a pipeline internal detection technology, and the internal detection technology is suitable for detection of liquid transmission pipelines, such as crude oil product oil transmission pipelines and the like. Due to the high pressure environment inside the infusion tube, the conventional piezoelectric ultrasonic probe cannot maintain a water seal in a high pressure state, and thus liquid may intrude into a gap of the connector to cause malfunction of the probe. In order to avoid the problem, many manufacturers integrate the coaxial cable and the piezoelectric ultrasonic probe to realize the water-tight sealing of the connection between the cable and the probe, but the sealing method integrates the cable and the probe, so that the cable needs to be replaced when the probe is replaced. Because the other end of the probe cable in the inner detector is connected with the hyperbaric chamber, the procedure is very complicated when the probe and the cable are replaced, and meanwhile, the probe is attached to one end of the cable during the installation of equipment, so that the installation process is very inconvenient.
Disclosure of Invention
The utility model provides a solve the technical problem that exists among the well-known technology and provide a watertight type piezoelectricity ultrasonic testing probe-cable junction structure, this structure not only can satisfy ultrasonic probe's the sealed requirement of water under high pressure, guarantees that the probe normally works under the high-pressure liquid environment, still can make the change of probe simple and convenient.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: the utility model provides a watertight type piezoelectricity ultrasonic detection probe-cable junction structure, this structure include with piezoelectricity ultrasonic probe shell integrated into one piece's watertight connector socket and with coaxial cable connection's watertight connector plug, watertight connector plug cartridge is in on the watertight connector socket, coupling nut is equipped with O type circle between the two, the watertight connector plug adopts the coupling nut lock solid to be in on the watertight connector socket, the coupling nut suit is in on the watertight connector plug, and with watertight connector socket threaded connection be connected with the honeycomb duct of suit in the coaxial cable outside on the coupling nut, coaxial cable with the honeycomb duct with between the watertight connector plug and the honeycomb duct with all the embedment has sealed gluey entity between the coupling nut.
The O-ring is mounted on the watertight connector socket.
The utility model has the advantages and positive effects that: because adopt solidification connection structure between watertight connector socket and the piezoelectricity ultrasonic probe, adopt encapsulation connection structure between watertight connector plug and the coaxial cable, adopt sealed releasable connection structure between watertight connector plug and the watertight connector socket, can realize piezoelectricity ultrasonic probe's withstand voltage watertight connection when watertight connector plug and socket connection, can conveniently realize the installation and the change of probe after watertight connector plug and the socket disconnection, through adopting high pressure water seal structure and releasable connection structure, the utility model discloses can guarantee that piezoelectricity ultrasonic probe normally works under high-pressure liquid environment, greatly promote the work efficiency of ultrasonic probe installation/change, expand the environment suitability of interior detection technology of supersound.
Drawings
Fig. 1 is a schematic exploded view of the present invention;
fig. 2 is a schematic structural diagram of the present invention in application.
In the figure, ① -a piezoelectric ultrasonic probe shell, ② -a watertight connector socket, ③ -an O-shaped ring, ④ -a watertight connector plug, ⑤ -a connecting screw cap, ⑥ -a flow guide tube and ⑦ -a coaxial cable.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments are exemplified and will be described in detail with reference to the accompanying drawings:
referring to fig. 1 and 2, a watertight type piezoelectric ultrasonic inspection probe-cable connection structure, the structure comprises a watertight connector socket 2 integrally formed with a piezoelectric ultrasonic probe case 1 and a watertight connector plug 4 connected with a coaxial cable 7, the watertight connector plug 4 is inserted and arranged on the watertight connector socket 2, an O-shaped ring 3 is arranged between the watertight connector plug and the watertight connector socket, the watertight connector plug 4 is locked on the watertight connector socket 2 by a connecting nut 5, the connecting nut 5 is sleeved on the watertight connector plug 4 and is in threaded connection with the watertight connector socket 2, the connecting nut 5 is connected with a flow guide pipe 6 which is sleeved outside the coaxial cable 7, and sealant entities are filled and sealed between the coaxial cable 7 and the flow guide pipe 6 and between the watertight connector plugs 4 and between the flow guide pipe 6 and the connecting nut 5.
In this embodiment, the O-ring 3 is mounted on the watertight connector socket 2.
The watertight piezoelectric ultrasonic detection probe-cable connection structure is characterized in that:
1) the piezoelectric ultrasonic probe shell 1 and the watertight connector socket 2 are integrally formed by adopting a die, so that the full sealing between the piezoelectric ultrasonic probe shell 1 and the watertight connector socket 2 is realized.
2) The coaxial cable 7 is sealed and fixed on the watertight connector plug 4 by adopting sealant, so that the sealing between the plug and the coaxial cable is realized.
3) The O-shaped ring 3 is arranged between the watertight connector socket 2 and the watertight connector plug 4, so that the full sealing between the plug and the socket is realized; meanwhile, the plug is connected with the socket through threads, so that the probe can be conveniently replaced and installed.
The utility model discloses a be in the same place traditional piezoelectricity ultrasonic probe shell and the solidification of watertight type socket to be connected with watertight type plug, the embedding of embedded O type circle subassembly, satisfied watertight piezoelectricity ultrasonic probe's withstand voltage requirement. Meanwhile, by adopting the coaxial cable and the encapsulating sealant structure, the encapsulating sealant encapsulation of the watertight plug and the coaxial cable is realized, and the pressure-resistant working performance requirement of the piezoelectric ultrasonic probe under the seawater environment of 12MPa can be met. In addition, the watertight plug is connected with the watertight socket through threads, so that disconnection or connection can be conveniently realized, and replacement and installation of the probe are facilitated.
Because the ultrasonic internal detector probe is directly exposed in the external detection environment, the probe is easy to damage in the practical application process, the watertight piezoelectric ultrasonic probe adopting the connection structure can realize the space isolation between the inside of the probe and the external environment, the environmental applicability of the ultrasonic internal detection technology is expanded, the ultrasonic internal detector probe can be well adapted to the high-temperature and high-pressure environment inside a submarine pipeline, and the market application space is huge. Meanwhile, in order to ensure full coverage of circumferential detection of the pipeline, the ultrasonic internal detector often needs to integrate hundreds of different types of probes. The working performance of different probes is different, and the probes with excellent performance need to be replaced immediately according to the probe signal characterization in actual engineering detection, so that the detection precision of the inner detector is ensured. The application of the connecting structure can greatly improve the working efficiency of probe installation/replacement in the debugging, installation and use processes of the detector, and has absolute advantages in time and labor cost.
Application tests prove that: the piezoelectric ultrasonic probe adopting the connection structure has stable detection performance and clear echo signals, overcomes the fatal defect that the conventional ultrasonic probe cannot be applied to submarine pipeline detection, and has practical engineering application value and industrial popularization potential.
Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, which is within the scope of the present invention.

Claims (2)

1. The utility model provides a watertight type piezoelectricity ultrasonic detection probe-cable junction structure, its characterized in that, this structure include with piezoelectricity ultrasonic probe shell integrated into one piece's watertight connector socket and with coaxial cable connection's watertight connector plug, watertight connector plug cartridge is in on the watertight connector socket, on the two between the connection nut be equipped with O type circle, watertight connector plug adopts the connection nut lock solid to be in on the watertight connector socket, the connection nut suit is in on the watertight connector plug, and with watertight connector socket threaded connection be connected with the honeycomb duct of suit in the coaxial cable outside on the connection nut, coaxial cable with the honeycomb duct with between the watertight connector plug and the honeycomb duct with all the embedment has sealed glue entity between the connection nut.
2. The watertight type piezoelectric ultrasonic inspection probe-cable connection structure of claim 1, wherein the O-ring is mounted on the watertight connector socket.
CN201920762884.2U 2019-05-25 2019-05-25 Watertight piezoelectric ultrasonic detection probe-cable connection structure Active CN209929568U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920762884.2U CN209929568U (en) 2019-05-25 2019-05-25 Watertight piezoelectric ultrasonic detection probe-cable connection structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920762884.2U CN209929568U (en) 2019-05-25 2019-05-25 Watertight piezoelectric ultrasonic detection probe-cable connection structure

Publications (1)

Publication Number Publication Date
CN209929568U true CN209929568U (en) 2020-01-10

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CN201920762884.2U Active CN209929568U (en) 2019-05-25 2019-05-25 Watertight piezoelectric ultrasonic detection probe-cable connection structure

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113122853A (en) * 2021-03-13 2021-07-16 青岛钢研纳克检测防护技术有限公司 Reference electrode with replaceable probe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113122853A (en) * 2021-03-13 2021-07-16 青岛钢研纳克检测防护技术有限公司 Reference electrode with replaceable probe

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