CN203443935U - Wave guide rod fixing device for pipe acoustic emission detection - Google Patents

Wave guide rod fixing device for pipe acoustic emission detection Download PDF

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Publication number
CN203443935U
CN203443935U CN201320571159.XU CN201320571159U CN203443935U CN 203443935 U CN203443935 U CN 203443935U CN 201320571159 U CN201320571159 U CN 201320571159U CN 203443935 U CN203443935 U CN 203443935U
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CN
China
Prior art keywords
waveguide rod
pipe
rod
wave guide
arc
Prior art date
Application number
CN201320571159.XU
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Chinese (zh)
Inventor
曹国梁
徐长航
陈国明
史焕地
宁肖
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中国石油大学(华东)
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Application filed by 中国石油大学(华东) filed Critical 中国石油大学(华东)
Priority to CN201320571159.XU priority Critical patent/CN203443935U/en
Application granted granted Critical
Publication of CN203443935U publication Critical patent/CN203443935U/en

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Abstract

The utility model provides a wave guide rod fixing device for pipe acoustic emission detection and mainly aims to conveniently achieve that wave guide rods with different diameters can be firmly mounted on pipes with different pipe diameters. The wave guide rod fixing device structurally and mainly comprises a main part, a replaceable wave guide rod connecting bolt and two adjustable pipe connecting pieces; according to the diameters of the pipes, the wave guide rod connecting bolt can be replaced with another wave guide rod connecting bolt with different inner diameter; the opening degree of each pipe connecting piece can be adjusted according to the diameter of the pipe to be detected, so as to achieve that the wave guide rods with different diameters are connected with the pipes with different pipe diameters conveniently and firmly. The wave guide rod fixing device is simple in structure and higher in practicability; because the wave guide rods and the fixing device are compacted through threads, so that close contact between the wave guide rod and the surface of the pipe can be ensured, shaking of the wave guide rod on the pipe is reduced due to the structural design of the magnet connecting pieces, and finally, that acoustic emission signals spread stably can be ensured.

Description

A kind of waveguide rod stationary installation for pipeline acoustic emission detection
Technical field
The present invention relates to a kind of waveguide rod stationary installation for pipeline acoustic emission detection, be especially applicable to the waveguide rod stationary installation of different tube diameters pipeline.
Background technology
Acoustic emission testing technology, as one of important means of Non-Destructive Testing, has application comparatively widely at aspects such as pressure vessel detection, pipeline leakage testing, bridge structure detections.At present, acoustic emission is when being applied to the pipeline of particular surroundings (underground, under water, deep cooling etc.), in order to solve the problem of installation of sensors inconvenience, need to utilize waveguide rod to assist, one end of waveguide rod is connected to pipe surface, the other end is for sensor installation, and acoustic emission signal can propagate in calibrate AE sensor by waveguide rod.
Retrieving research and the application achievements of relevant waveguide rod finds, stable in order to guarantee that waveguide rod connects, adopt of waveguide rod and pipeline is welded to connect more, so just to the actual detection in engineering, bring inconvenience, and other are about the achievement of waveguide rod stationary installation, be applicable to plane or the larger structure of surperficial radian, the stability in the time of can not guaranteeing to install on the pipeline of different tube diameters.And during application waveguide rod device transmission acoustic emission signal, must guarantee being connected of waveguide rod end face and measured workpiece close and firm.In addition, existing waveguide rod stationary installation is only applicable to waveguide rod fixing of single diameter, and when the application of scientific research and engineering according to the demand of collection signal, can use the waveguide rod of multiple diameter, therefore need a kind of stationary installation that is applicable to different tube diameters pipeline and can connects different-diameter waveguide rod.
Summary of the invention
In order to reach the requirement of the relevant waveguide rod use of mentioning in background technology, the invention provides a kind of stationary installation that is applicable to different tube diameters pipeline and can connects different-diameter waveguide rod.This device can be realized waveguide rod convenient, firm connection on pipeline.
Technical scheme of the present invention is: a kind of waveguide rod stationary installation for pipeline acoustic emission detection.Its structure mainly comprises main body, changeable type waveguide rod coupling bolt and two adjustable conduit couplings.The upper end of described main body coordinates with changeable type waveguide rod coupling bolt, in lower stomidium, for depositing, tests required couplant.Main body both sides are connected with two T word supports, for the conduit coupling of engages adjustable.Described changeable type waveguide rod coupling bolt, has the external thread coordinating with main body upper end hole, simultaneously its inner internal thread coordinating with waveguide rod end in addition.According to the size of different waveguide bar, the coupling bolt of the corresponding dimension of inner screw thread of accessory processing, has so just realized main body and has been connected with the firm of different size waveguide rod.Described adjustable conduit coupling is comprised of two sway braces, two arc-shaped base, spring and jump ring, adjusting screw(rod)s.Sway brace one end is provided with square groove, is arranged on the free end of T word support; The other end of sway brace connects arc-shaped base; In the middle of sway brace, offer threaded hole.Described arc-shaped base is that reeded arcuate structure is established in inside, and its diameter is greater than the diameter of measuring channel.Described spring fitting is between sway brace and draw-in groove, and jump ring is arranged in draw-in groove, for limiting the movement of sway brace.Adjusting screw(rod) is double threaded screw structure, in the middle of adjusting screw(rod), is regulating wheel, and the hand of spiral of screw rod both sides is contrary, and the threaded hole of offering with two sway brace centre positions respectively coordinates.Regulating wheel on adjustable pipe pipe connecting can change the distance between two sway braces, thereby realizes coordinating of this stationary installation and different-diameter pipeline.
Advantage of the present invention: first, this waveguide rod stationary installation coordinates after waveguide rod, while guaranteeing in particular surroundings (underground, under water, deep cooling etc.) use, sensor can not suffer damage; Secondly, this waveguide rod stationary installation can be connected with the waveguide rod of different-diameter, and for different pipeline features, the waveguide rod of the respective diameters of collocation signal attenuation minimum, can improve measuring accuracy; Finally, this waveguide rod stationary installation goes for the pipeline of different tube diameters, the stability while guaranteeing to install on the pipeline of different tube diameters.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and concrete case study on implementation, further illustrate the present invention
Fig. 1 is structural representation of the present invention
Fig. 2 be in the present invention changeable type waveguide rod coupling bolt A to cut-open view
Fig. 3 be in the present invention main body rectangular structure A to cut-open view
Embodiment
Its structure mainly comprises main body (1), changeable type waveguide rod coupling bolt (2) and two adjustable conduit couplings (3).It is characterized in that:
Described main body (1) consists of with two the T word supports (12) that are symmetric the rectangular parallelepiped (11) of a through hole.The rectangular parallelepiped of described main body (11) indoor design has three sector holes, from front view direction, from top to bottom, upper end hole (111) has internal thread, coordinate with changeable type waveguide rod coupling bolt (2), interstitial hole (112), lower stomidium (113) are unthreaded hole, and the aperture of lower stomidium is greater than the aperture of interstitial hole, in lower stomidium for placing the required couplant of acoustic emission test.Two T word supports (12) are separately fixed at two sides that rectangular parallelepiped is relative, and T word support is rectangular structure.At two free-ended ends of each T word support, draw-in groove (121) is respectively set, for jump ring is installed.Adjustable conduit coupling (3) is connected on T word support.
Described changeable type waveguide rod coupling bolt (2), has the external thread (21) coordinating with main body upper end hole (111); Its inner internal thread (22) in addition, can coordinate with being with externally threaded waveguide rod simultaneously.Regulate the length of waveguide rod precession, the screw thread by waveguide rod and main body compresses, and waveguide rod end is contacted closely with pipe surface, thereby acoustic emission signal is high-quality in assurance pipeline, is transmitted in waveguide rod.For the waveguide rod of different-diameter, the coupling bolt of replaceable corresponding internal diameter, thus realize being connected of this stationary installation and different-diameter waveguide rod.
Described adjustable conduit coupling (3) is comprised of with jump ring (34), adjusting screw(rod) (35) two sway braces (31), two arc-shaped bases (32), spring (33).Sway brace one end is provided with square groove (311), is arranged on the free end of T word support; The other end of sway brace connects arc-shaped base (32); In the middle of sway brace, offer threaded hole (312).Described arc-shaped base (32) is provided with the arcuate structure of groove (321) for inside, and its diameter is greater than the diameter of measuring channel.Described spring (33) is arranged between sway brace (31) and draw-in groove (121), and jump ring (34) is arranged in draw-in groove, for limiting the movement of sway brace.Adjusting screw(rod) (35) is double threaded screw structure, in the middle of adjusting screw(rod), is regulating wheel (351), and the hand of spiral of screw rod both sides is contrary, and the threaded hole of offering with two sway brace centre positions respectively coordinates.Regulating wheel on adjustable pipe pipe connecting (3) can change the distance between two sway braces (31), thereby realizes coordinating of this stationary installation and different-diameter pipeline.
The groove arranging in described arc-shaped base, for placing magnet or connecting securing member, can guarantee that waveguide rod stationary installation is firmly fixed on pipe surface; Arc-shaped base outer wrap swarf bag, in the time of protection arc-shaped base, increases the contact area of arc-shaped base and pipeline cambered surface.
Above-mentioned example is only for the present invention is described, every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.

Claims (2)

1. for a waveguide rod stationary installation for pipeline acoustic emission detection, its structure mainly comprises main body (1), changeable type waveguide rod coupling bolt (2) and two adjustable conduit couplings (3), it is characterized in that:
Described main body (1) consists of with two the T word supports (12) that are symmetric the rectangular parallelepiped (11) of a through hole, the rectangular parallelepiped of described main body (11) indoor design has three sector holes, from front view direction, from top to bottom, upper end hole (111) has internal thread, coordinate with changeable type waveguide rod coupling bolt (2), interstitial hole (112), lower stomidium (113) is unthreaded hole, and the aperture of lower stomidium is greater than the aperture of interstitial hole, in lower stomidium, for depositing, test required couplant, two T word supports (12) are separately fixed at two sides that rectangular parallelepiped is relative, T word support is rectangular structure, at two free-ended ends of each T word support, draw-in groove (121) is respectively set, be used for installing jump ring, adjustable conduit coupling (3) is connected on T word support,
Described changeable type waveguide rod coupling bolt (2), there is the external thread (21) coordinating with main body upper end hole (111), its inside also has internal thread (22) simultaneously, can coordinate with being with externally threaded waveguide rod, regulate the length of waveguide rod precession, screw thread by waveguide rod and main body compresses, waveguide rod end is contacted closely with pipe surface, thereby acoustic emission signal is high-quality in assurance pipeline, be transmitted in waveguide rod, waveguide rod for different-diameter, the coupling bolt of replaceable corresponding internal diameter, thereby realize being connected of this stationary installation and different-diameter waveguide rod,
Described adjustable conduit coupling (3) is by two sway braces (31), two arc-shaped bases (32), spring (33) and jump ring (34), adjusting screw(rod) (35) forms, sway brace one end is provided with square groove (311), be arranged on the free end of T word support, the other end of sway brace connects arc-shaped base (32), in the middle of sway brace, offer threaded hole (312), described arc-shaped base (32) is provided with the arcuate structure of groove (321) for inside, its diameter is greater than the diameter of measuring channel, described spring (33) is arranged between sway brace (31) and draw-in groove (121), jump ring (34) is arranged in draw-in groove, for limiting the movement of sway brace, adjusting screw(rod) (35) is double threaded screw structure, in the middle of adjusting screw(rod), be regulating wheel (351), the hand of spiral of screw rod both sides is contrary, the threaded hole of offering with two sway brace centre positions respectively coordinates, regulating wheel on adjustable pipe pipe connecting (3) can change the distance between two sway braces (31), thereby realize coordinating of this stationary installation and different tube diameters pipeline.
2. a kind of waveguide rod stationary installation for pipeline acoustic emission detection according to claim 1; it is characterized in that; the groove arranging in arc-shaped base is for placing magnet or connecting securing member; can guarantee that waveguide rod stationary installation is firmly fixed on pipe surface; arc-shaped base outer wrap swarf bag; in the time of protection arc-shaped base, increase the contact area of arc-shaped base and pipeline cambered surface.
CN201320571159.XU 2013-09-13 2013-09-13 Wave guide rod fixing device for pipe acoustic emission detection CN203443935U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320571159.XU CN203443935U (en) 2013-09-13 2013-09-13 Wave guide rod fixing device for pipe acoustic emission detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320571159.XU CN203443935U (en) 2013-09-13 2013-09-13 Wave guide rod fixing device for pipe acoustic emission detection

Publications (1)

Publication Number Publication Date
CN203443935U true CN203443935U (en) 2014-02-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103454350A (en) * 2013-09-13 2013-12-18 中国石油大学(华东) Waveguide rod fixing device for acoustic emission inspection of pipeline
CN105911140A (en) * 2016-04-14 2016-08-31 宁波升拓检测技术有限公司 Elastic wave pick-up device for reducing phase difference interference

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103454350A (en) * 2013-09-13 2013-12-18 中国石油大学(华东) Waveguide rod fixing device for acoustic emission inspection of pipeline
CN103454350B (en) * 2013-09-13 2015-06-24 中国石油大学(华东) Waveguide rod fixing device for acoustic emission inspection of pipeline
CN105911140A (en) * 2016-04-14 2016-08-31 宁波升拓检测技术有限公司 Elastic wave pick-up device for reducing phase difference interference

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Granted publication date: 20140219

Effective date of abandoning: 20150624

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