CN218974262U

CN218974262U - Ultrasonic probe for pipeline detection

Info

Publication number: CN218974262U
Application number: CN202222677550.XU
Authority: CN
Inventors: 徐敏; 王远峰
Original assignee: Beijing Longkexing Technology Group Co ltd
Current assignee: Beijing Longkexing Technology Group Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-05-05
Anticipated expiration: 2032-10-11

Abstract

The utility model relates to the technical field of pipeline detection, in particular to an ultrasonic probe for pipeline detection, which comprises: the device comprises a shell, wherein a cavity is formed in the shell, a wafer is installed in the cavity, a first cambered surface is arranged at the lower end of the shell, and the first cambered surface is adapted to the cambered surface at the outer side of a detected pipeline; the lower end of the wafer is provided with a second cambered surface, and the second cambered surface is matched with the first cambered surface. According to the ultrasonic probe, the shell with the first cambered surface and the wafer with the second cambered surface are designed, the corrosion of the inner wall and the outer wall of the pipeline and the welding seam are detected through the contact of the first cambered surface and the outer wall of the pipeline, the condition of the pipeline can be visually detected, and the quantitative detection of the corrosion of the inner wall and the outer wall and the dangerous defect of the welding seam is realized, so that the accuracy of the final result of a detection report is ensured.

Description

Ultrasonic probe for pipeline detection

Technical Field

The utility model relates to the technical field of pipeline detection, in particular to an ultrasonic probe for pipeline detection.

Background

The detection of the active pipeline is a precondition for determining the repair of the pipeline. The scheme design of the repair engineering and the technical deployment of the repair construction are based on a pipeline detection report. And the inner and outer wall corrosion and the detection of dangerous defects of the welding line are technical difficulties.

In the prior art, the CCTV pipeline detection technology generally used can intuitively detect the pipeline condition, but the detection of the inner and outer wall corrosion and the dangerous defects of the welding seam is difficult to quantify, so that the final result of the report is affected.

Disclosure of Invention

In order to solve the technical problems of corrosion of inner and outer walls of a pipeline and detection of dangerous defects of a welding line in the prior art, which are difficult to quantify, one embodiment of the present utility model provides an ultrasonic probe for pipeline detection, the ultrasonic probe comprising:

a housing, a cavity is formed in the housing, a wafer is mounted in the cavity,

the lower end of the shell is provided with a first cambered surface which is adapted to the cambered surface at the outer side of the detected pipeline; the lower end of the wafer is provided with a second cambered surface, and the second cambered surface is matched with the first cambered surface.

In a preferred embodiment, a lead is provided at the upper end of the die, and a probe signal is outputted through the lead.

In a preferred embodiment, the wafer dimensions are 8cm wide by 12cm long wafers.

In a preferred embodiment, the wafer dimensions are 20cm wide by 20cm long wafers.

The technical scheme provided by the embodiment of the utility model has the beneficial effects that at least:

the utility model provides an ultrasonic probe for pipeline detection, which is characterized in that a shell with a first cambered surface and a wafer with a second cambered surface are designed, the corrosion of the inner wall and the outer wall of a pipeline and the detection of a welding line are carried out through the contact of the first cambered surface and the outer wall of the pipeline, the condition of the pipeline can be intuitively detected, and the quantitative detection of the corrosion of the inner wall and the outer wall and the dangerous defect of the welding line is realized, so that the accuracy of the final result of a detection report is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view showing a structure in which an ultrasonic probe for pipe inspection is brought into contact with a pipe under inspection in accordance with an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The generation mechanism of ultrasonic guided waves (also called guided waves) is similar to the lamb wave excitation mechanism in thin plates and is also formed by multiple back and forth reflections in a medium with limited space and further complicated superposition interference and geometric dispersion. The method is particularly suitable for detecting dangerous defects of corrosion and welding seams of inner and outer walls of in-service pipelines.

An ultrasonic probe for pipe inspection according to an embodiment of the present utility model shown in fig. 1 is a schematic view of a structure in which an ultrasonic probe for pipe inspection is brought into contact with a pipe to be inspected, and according to an embodiment of the present utility model, an ultrasonic probe for pipe inspection includes a housing 100, a cavity is formed in the housing 100, and a wafer 101 is mounted in the cavity.

The lower end of the shell 100 is provided with a first cambered surface 102, and the first cambered surface 102 is adapted to the cambered surface of the outer side of the tested pipeline 200. The lower end of the wafer 101 has a second arcuate surface 103, the second arcuate surface 103 being adapted to the first arcuate surface 101. A lead 104 is provided on the upper end of the wafer 101, and a probe signal is outputted through the lead 104.

In detection, the first cambered surface 102 of the ultrasonic probe for pipeline detection provided by the utility model is contacted with the cambered surface of the outer wall of the pipeline 200 to be detected.

In some preferred embodiments, the ultrasonic probe adopts a low-frequency guided wave long-distance ultrasonic detection method to rapidly detect the in-service state of the pipeline, the corrosion of the inner wall and the outer wall can be detected at one time, and the plane defect of the section of the pipeline can be detected.

In some preferred embodiments, the frequency of the ultrasonic probe is selected to be 0.7MHz to 1MHz, and further, the frequency of the ultrasonic probe is selected to be 1MHz.

In some preferred embodiments, for pipes with diameters greater than 273mm, wall thicknesses greater than 30mm, and more severely corroded inner and outer walls, the ultrasonic probe is preferably selected to have a lower frequency, and wafer 101 is sized as a 20cm wide by 20cm long wafer.

In a further preferred embodiment, for a pipe with a diameter greater than 89mm and a more severely corroded outer wall, wafer 101 has dimensions of 20cm wide by 20cm long.

In some preferred embodiments, wafer 101 is sized as a 8cm wide by 12cm long wafer for a pipe with a diameter less than 89mm and a more severely corroded outer wall.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. An ultrasonic probe for pipeline inspection, the ultrasonic probe comprising:

a housing, a cavity is formed in the housing, a wafer is mounted in the cavity,

2. The ultrasonic probe of claim 1, wherein a lead is provided at an upper end of the wafer, and a probe signal is outputted through the lead.

3. The ultrasonic probe of claim 1, wherein the wafer dimensions are wafers 8cm wide by 12cm long.

4. The ultrasonic probe of claim 1, wherein the wafer dimensions are wafers 20cm wide by 20cm long.