Transverse and longitudinal wave combined phased array probe

Abstract

The utility model discloses a transverse and longitudinal wave combined phased array probe, which comprises a phased array probe (2) arranged on a fixed plate (1), the phased array probe (2) comprises a middle phased array probe (21), a left phased array probe (22) and a right phased array probe (23) which are mutually matched, the middle phased array probe (21) is vertically fixed on the fixed plate (1), and the left phased array probe (22) is vertically fixed on the fixed plate (1). The left-side phased array probe (22) and the right-side phased array probe (23) are arranged in a bilateral symmetry mode with the middle phased array probe (21) as the center line, and the included angle between the axis of the left-side phased array probe (22) and the axis of the middle phased array probe (21) is 8.5 degrees. The left phased array probe and the right phased array probe are inclined probes, the longitudinal angle alpha of the left phased array probe and the right phased array probe is 20 degrees, the projection angle beta of the left phased array probe and the right phased array probe is 19.8 degrees, and sound beams emitted by the three phased arrays intersect at one point. The utility model has the advantages that the detection requirements of layering defects and transverse defects of the phased array probe are met, the installation and integration are convenient, and the cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe end flaw detection, and particularly relates to a transverse and longitudinal wave combined phased array probe. Background Art

[0002] During the manufacturing process of pipes, ultrasonic testing methods or eddy current testing methods are generally used to detect defects on the inner wall of pipes. However, both are affected by objective factors of the pipes and it is difficult to achieve satisfactory detection sensitivity. Pipeline ultrasonic testing mainly involves the detection of various defects in pipeline welds and base metals, such as circumferential defects, axial defects or delamination defects. For the flaw detection of shaft forgings, longitudinal wave straight probes are mostly selected. However, when the length of the shaft is too long or there are multiple shaft segments with different diameters, there will be dead zones that the sound beam cannot scan, and only delamination defects can be detected. However, for transverse defects in different directions, they cannot be taken into account, resulting in incomplete defect detection and inability to meet the detection requirements for both delamination defects and transverse defects of the phased array probe. If it is necessary to detect delamination and transverse defects simultaneously, different probes need to be used to test the pipeline separately, which not only slows down the detection progress but also increases the detection cost. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problem that the existing phased array probe cannot take into account the detection of both delamination and transverse defects, and provides a transverse and longitudinal wave combined phased array probe, which can meet the detection requirements for both delamination defects and transverse defects of the phased array probe, is convenient for installation and integration, reduces costs, and improves economic benefits.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A transverse and longitudinal wave combined phased array probe, comprising a phased array probe arranged on a fixing plate. The phased array probe includes a middle phased array probe, a left phased array probe and a right phased array probe that cooperate with each other. The middle phased array probe is vertically fixed on the fixing plate. The left phased array probe and the right phased array probe are symmetrically arranged on the left and right sides with the middle phased array probe as the center line, and the included angle between the axis of the left phased array probe and the axis of the middle phased array probe is 8.5°;

[0006] Both the left and right phased array probes are inclined probes, with a longitudinal angle α of 20° and a projection angle β of 19.8°. The sound beams emitted by the three groups of phased arrays of the middle phased array probe, the left phased array probe and the right phased array probe intersect at one point.

[0007] Further, a first inclined surface is provided on the upper surface of the left phased array probe, and a second inclined surface is provided on the upper surface of the right phased array probe. The inclination directions of the first inclined surface and the second inclined surface are opposite.

[0008] Further, a set of grooves for installing a phased array probe are provided on the fixing plate, and the phased array probe is embedded in the corresponding groove. The front edges of the grooves in the middle and on the right are flush with the front side of the fixing plate, and the rear edges of the grooves on the left are flush with the rear side of the fixing plate.

[0009] Further, both the grooves and the phased array probes embedded in the grooves are provided on the front surface of the fixing plate. A set of phased array probe wire outlets are provided on the back surface of the fixing plate. The phased array probe wire outlets are provided on the opposite surfaces of the grooves close to the side of the fixing plate, and the phased array probe wire outlets are in communication with the grooves for wire outlet, facilitating integration and assembly.

[0010] Further, three sets of screw holes are provided on the back surface of the fixing plate. Each set of screw holes is arranged along the axis of the corresponding groove, and screws pass through the screw holes to correspondingly connect the phased array probe and the fixing plate.

[0011] Further, a set of fixing holes are provided on the fixing plate for connecting and fixing the fixing plate.

[0012] Compared with the prior art, the advantages of the technical solution of the present utility model are specifically as follows:

[0013] (1) After passing through a certain water layer, the middle phased array probe in the present utility model vertically enters the steel pipe. The middle phased array probe is used to detect delamination defects, and the left and right phased array probes are two probes with a symmetrically placed inclination angle of 8.5° for detecting transverse defects in two different directions, meeting the detection requirements for delamination defects and transverse defects of the phased array probe;

[0014] (2) The phased array probes in the present utility model are installed on the fixing plate with screws at a certain angle, and the phased array probe wire outlets are on one side of the fixing plate, facilitating integration and assembly. The three sets of phased array probes are integrated into one body, meeting the use requirements and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front structural schematic diagram of the transverse and longitudinal wave combined phased array probe of the present utility model;

[0016] Figure 2 is a back structural schematic diagram of the transverse and longitudinal wave combined phased array probe of the present utility model;

[0017] Figure 3 is a principle schematic diagram of the transverse and longitudinal wave combined phased array probe of the present utility model;

[0018] Figure 4 is an angle schematic diagram of the phased array probe of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS Embodiment

[0019] To make the present utility model clearer and more understandable, the following further describes a combined longitudinal and transverse wave phased array probe of the present utility model with reference to the accompanying drawings. The specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0020] See Figure 1 and Figure 2 , a combined longitudinal and transverse wave phased array probe, including a phased array probe 2 provided on a fixing plate 1, characterized in that:

[0021] See Figure 1 , Figure 2 and Figure 3 , the phased array probe 2 includes a middle phased array probe 21, a left phased array probe 22 and a right phased array probe 23 that cooperate with each other. The middle phased array probe 21 is vertically fixed on the fixing plate 1. The left phased array probe 22 and the right phased array probe 23 are symmetrically arranged left and right with the middle phased array probe 21 as the center line, and the included angle between the axis of the left phased array probe 22 and the axis of the middle phased array probe 21 is 8.5°;

[0022] See Figure 1 and Figure 4 , the left and right phased array probes are both inclined probes. The upper surface of the left phased array probe 22 is provided with a first inclined surface 22a, and the upper surface of the right phased array probe 23 is provided with a second inclined surface 23a. The inclination directions of the first inclined surface 22a and the second inclined surface 23a are opposite, and its longitudinal angle α is 20° and the projection angle β is 19.8°;

[0023] See Figure 3 , the sound beams emitted by the three groups of phased arrays of the middle phased array probe 21, the left phased array probe 22 and the right phased array probe 23 intersect at one point;

[0024] See Figure 1 , a set of grooves 1a for installing the phased array probe 2 are provided on the fixing plate 1. The phased array probe 2 is embedded in the corresponding groove 1a. The front edges of the middle and right grooves 1a are flush with the front side of the fixing plate 1, and the rear edge of the left groove 1a is flush with the rear side of the fixing plate 1;

[0025] See Figure 1 and Figure 2 , the groove 1a and the phased array probe 2 embedded in the groove 1a are both provided on the front surface of the fixing plate 1. A set of phased array probe wire outlets 1b are provided on the back surface of the fixing plate 1. The phased array probe wire outlets 1b are provided on the opposite surfaces of the groove 1a close to the side of the fixing plate 1, and the phased array probe wire outlets 1b are communicated with the groove 1a for wire outlet, which is convenient for integration and assembly;

[0026] On the back of the fixing plate 1, there are three groups of screw holes 1c. Each group of screw holes 1c is arranged along the axis of the corresponding groove 1a. The screw 3 passes through the screw hole 1c to correspondingly connect the phased array probe 2 and the fixing plate 1. There is also a group of fixing holes 1d on the fixing plate 1.

[0027] The middle phased array probe 21 of the present utility model is vertically installed on the fixing plate 1. The left and right phased array probes are symmetrically placed with respect to the middle probe. After passing through a certain water layer, the middle phased array probe 21 vertically enters the steel pipe. The middle phased array probe 21 is used to detect delamination defects; the left and right phased array probes are two probes with an inclined angle of 8.5° placed symmetrically, which are used to detect transverse defects in two different directions.

[0028] On the fixing plate of the present utility model, there is a groove 1a for installing the phased array probe. The phased array probe 2 is installed on the fixing plate 1 with screws at a certain angle. The phased array probe leads out on one side of the fixing plate, which is convenient for integration and assembly. The three groups of phased array probes form an integral body, meeting the use requirements and reducing the cost.

[0029] In addition to the above embodiments, the present utility model can also have other implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present utility model.

Claims

1. A transverse and longitudinal wave combined phased array probe, comprising a phased array probe (2) arranged on a fixed plate (1), characterized in that: The phased array probe (2) comprises a middle phased array probe (21), a left phased array probe (22) and a right phased array probe (23) which cooperate with each other, the middle phased array probe (21) being vertically fixed on the fixing plate (1), the left phased array probe (22) and the right phased array probe (23) being symmetrically arranged with the middle phased array probe (21) as the midline, and the angle between the axis of the left phased array probe (22) and the axis of the middle phased array probe (21) being 8.5°; The left and right phased array probes are both oblique probes, with a longitudinal angle α of 20° and a projection angle β of 19.8°. The sound beams emitted by the three phased array probes, namely the middle phased array probe (21), the left phased array probe (22) and the right phased array probe (23), intersect at one point.

2. The transverse and longitudinal wave combined phased array probe according to claim 1, characterized in that: The upper surface of the left phased array probe (22) is provided with a first inclined plane (22a), and the upper surface of the right phased array probe (23) is provided with a second inclined plane (23a), and the inclination directions of the first inclined plane (22a) and the second inclined plane (23a) are opposite.

3. The transverse and longitudinal wave combined phased array probe according to claim 1 or 2, characterized in that: The fixing plate (1) is provided with a group of grooves (1a) for installing the phased array probe (2), and the phased array probe (2) is embedded in the corresponding grooves (1a), the front edges of the middle and right grooves (1a) are flush with the front side of the fixing plate (1), and the rear edge of the left groove (1a) is flush with the rear side of the fixing plate (1).

4. The transverse and longitudinal wave combined phased array probe according to claim 3, characterized in that: The groove (1a) and the phased array probe (2) embedded in the groove (1a) are both arranged on the front side of the fixing plate (1); a group of phased array probe outlets (1b) are arranged on the back side of the fixing plate (1); the phased array probe outlets (1b) are arranged on the opposite side of the groove (1a) close to the side of the fixing plate (1); and the phased array probe outlets (1b) are connected to the groove (1a).

5. The transverse and longitudinal wave combined phased array probe according to claim 1 or 2, characterized in that: The back side of the fixing plate (1) is provided with three groups of screw holes (1c), each group of screw holes (1c) is arranged along the axis of the corresponding groove (1a), and the screws (3) pass through the screw holes (1c) to connect the phased array probe (2) to the fixing plate (1) accordingly.

6. The transverse and longitudinal wave combined phased array probe according to claim 1 or 2, characterized in that: The fixing plate (1) is provided with a group of fixing holes (1d).

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