Non-destructive inspection equipment for welding seam of pressure vessel

Abstract

The utility model discloses pressure vessel welding seam nondestructive testing equipment which comprises an ultrasonic probe, the ultrasonic probe is fixedly installed in the end portion of a telescopic arm in the transverse direction, the telescopic arm is fixedly connected to the periphery of a conveying belt, the conveying belt is rotatably installed in a longitudinal framework in the vertical direction, and the conveying belt drives the ultrasonic probe to ascend and descend in the rotating process; the side portion of the longitudinal framework is connected with two sliding blocks, the sliding blocks slide and ascend and descend along the side portion of the longitudinal framework, the two sliding blocks are fixedly connected through a connecting plate, and the connecting plate is fixedly connected with a telescopic arm on the periphery of the conveying belt. The longitudinal framework is fixedly connected to the top of the upper ring frame, the bottom of the upper ring frame is connected with the lower ring frame through a slewing bearing, avoiding holes of a circular structure are formed in the upper ring frame and the lower ring frame, and the avoiding holes are used for placing a pressure container to be tested. The pressure vessel welding seam nondestructive testing equipment provided by the utility model can be used for carrying out automatic nondestructive testing on annular welding seams and longitudinal welding seams on a vessel, so that the detection error is reduced, and the working efficiency of detection is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pressure vessel weld nondestructive testing equipment belongs to nondestructive testing technical field. BACKGROUND

[0002] Most pressure vessels are made of steel plate roll welding, and in order to ensure that the quality of the cylinder meets the demand, the weld on the cylinder is usually nondestructive testing. Nondestructive testing is an important link to ensure the safe use of pressure vessels. The commonly used pressure vessel weld nondestructive testing methods mainly include ultrasonic flaw detection, ray flaw detection, penetration flaw detection and magnetic powder flaw detection, and ultrasonic weld flaw detection is the most widely used because of its strong penetration, high flaw detection sensitivity, no harm to human body and low cost and high efficiency.

[0003] At present, the way for detecting the vertical structure pressure vessel is usually manual holding the probe to nondestructively detect the annular weld and longitudinal weld on the container, the stability of manual operation is poor, and the detection error is prone to occur, and the working efficiency of detection is low; when the pressure vessel is high and large in diameter, the detection method of manually holding the probe is inconvenient to operate.

[0004] From the above, it is obvious that the prior art has inconvenience and defects in actual use, so it is necessary to improve. UTILITY MODEL CONTENTS

[0005] The utility model provides a pressure vessel weld nondestructive testing equipment can automatically nondestructively detect the annular weld and longitudinal weld on the container, reduces the detection error, improves the working efficiency of detection in view of the deficiency in the background art.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] The pressure vessel weld nondestructive testing equipment includes an ultrasonic probe, the ultrasonic probe is fixedly installed in the end of the telescopic arm along the transverse direction, the telescopic arm is fixedly connected to the periphery of the conveying belt, the conveying belt is rotatably installed in the longitudinal frame along the vertical direction, and the conveying belt drives the ultrasonic probe to ascend and descend in the rotating process.

[0008] The longitudinal frame is fixedly connected to the top of the upper ring frame, the bottom of the upper ring frame is connected with the lower ring frame through the rotary support, the upper ring frame and the lower ring frame are internally provided with the avoiding hole of circular structure, and the avoiding hole is used for placing the pressure vessel to be detected.

[0009] Further, the telescopic arm is adjustable along the transverse length.

[0010] Further, the two ends of the conveying belt along the vertical direction are wound on the pulley, the pulley is rotatably connected with the longitudinal frame, and one of the pulleys is connected with the driving motor.

[0011] Further, two sliding blocks are connected to the longitudinal frame side, and the sliding blocks slide along the longitudinal frame side to be lifted and lowered, and the two sliding blocks are fixedly connected through a connecting plate.

[0012] Further, the connecting plate is fixedly connected with the telescopic arm at the periphery of the conveying belt.

[0013] Further, the rotary bearing comprises a rotary-connected bearing inner ring and a bearing outer ring, the bearing outer ring is fixedly connected with the upper ring frame through a plurality of circumferentially distributed bolts, and the bearing inner ring is fixedly connected with the lower ring frame through a plurality of circumferentially distributed bolts.

[0014] Further, the bearing outer ring is provided with an outer gear ring, the outer gear ring is meshingly connected with a gear, the gear is installed on the output shaft of a rotary motor, and the rotary motor is fixedly installed in the lower ring frame in the vertical direction.

[0015] Further, three circumferentially distributed rollers are installed at the bottom of the lower ring frame.

[0016] Compared with the prior art, the above technical scheme has the following advantages:

[0017] The driving motor drives the conveying belt to rotate through a belt pulley, the conveying belt drives the ultrasonic probe to move up and down, so that the longitudinal weld of the pressure vessel is automatically inspected; the rotary motor drives the upper ring frame to rotate through gear transmission, and then drives the ultrasonic probe above to rotate, so that the annular weld on the pressure vessel is automatically inspected; the detection error can be reduced, and the detection work efficiency is improved.

[0018] The ultrasonic probe is abutted on the outer wall of the pressure vessel with different diameters by adjusting the telescopic arm, and the application range is improved.

[0019] The utility model will be described in detail below in combination with the drawings and examples. DRAWINGS

[0020] Figure 1 is the structure schematic diagram of the utility model;

[0021] Figure 2 is the structure sectional view of the utility model;

[0022] Figure 3 is Figure 2 is the enlarged view of M in the middle;

[0023] Figure 4 is the use state diagram of the utility model.

[0024] In the figure, 1 - ultrasonic probe, 2 - telescopic arm, 3 - conveying belt, 4 - longitudinal frame, 5 - sliding block, 6 - connecting plate, 7 - pulley, 8 - upper ring frame, 9 - slewing bearing, 10 - lower ring frame, 11 - roller, 12 - outer gear ring, 13 - gear, 14 - slewing motor, 15 - avoiding hole, 16 - pressure vessel. DETAILED DESCRIPTION

[0025] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation mode of the utility model will be explained by referring to the drawings.

[0026] As Figures 1-4 The utility model provides a pressure vessel weld nondestructive testing equipment, including ultrasonic probe 1, ultrasonic probe 1 is fixedly installed in the end of telescopic arm 2 along the transverse direction, telescopic arm 2 is fixedly connected to the periphery of conveying belt 3, conveying belt 3 is rotatably installed in longitudinal frame 4 along the vertical direction, and conveying belt 3 drives ultrasonic probe 1 to go up and down in the rotating process.

[0027] The longitudinal frame 4 is fixedly connected to the top of the upper ring frame 8, the bottom of the upper ring frame 8 is connected to the lower ring frame 10 through the slewing bearing 9, and the inside of the upper ring frame 8 and the lower ring frame 10 is provided with a circular avoiding hole 15 for placing the pressure vessel 16 to be measured.

[0028] The telescopic arm 2 is adjustable along the transverse length, and the position of the ultrasonic probe 1 is adjusted, so that the ultrasonic probe 1 can abut on the outer wall of the pressure vessel 16 with different diameters, and the application range is improved.

[0029] The two ends of the conveying belt 3 along the vertical direction are arranged around the pulley 7, the pulley 7 is rotatably connected with the longitudinal frame 4, one of the pulleys 7 is connected with the driving motor, and the driving motor can be forward and reverse rotated.

[0030] The longitudinal frame 4 is connected with two sliding blocks 5 on the side, the sliding blocks 5 can slide up and down along the side of the longitudinal frame 4, the two sliding blocks 5 are fixedly connected through the connecting plate 6, synchronous lifting is realized, and the connecting plate 6 is fixedly connected with the telescopic arm 2 on the periphery of the conveying belt 3. By arranging the sliding block 5 and the connecting plate 6, the stability of the ultrasonic probe 1 in the lifting process can be ensured.

[0031] The slewing bearing 9 includes a rotatably connected bearing inner ring and a bearing outer ring, the bearing outer ring is fixedly connected with the upper ring frame 8 through a plurality of circumferentially distributed bolts, and the bearing inner ring is fixedly connected with the lower ring frame 10 through a plurality of circumferentially distributed bolts.

[0032] The supporting outer ring is provided with an outer gear ring 12 which is in meshing connection with a gear 13 mounted on an output shaft of a rotary motor 14 fixedly installed in the lower ring frame 10 in the vertical direction. The rotary motor 14 provides power for the rotation of the upper ring frame 8, and further drives the upper ultrasonic probe 1 to rotate.

[0033] The lower ring frame 10 is provided with three circumferentially distributed rollers 11 at the bottom, and the rollers 11 have a self-locking function, facilitating the transfer of the whole device.

[0034] The specific working principle of the utility model is as follows:

[0035] During inspection, the nondestructive testing equipment is sleeved outside the pressure container 16, or the pressure container 16 is placed in the nondestructive testing equipment. The ultrasonic probe 1 is abutted on the outer wall of the pressure container 16 by adjusting the telescopic arm 2; when the driving motor drives the transmission belt 3 to rotate through the belt pulley 7, the transmission belt 3 drives the ultrasonic probe 1 to move up and down, so as to automatically inspect the longitudinal weld of the pressure container 16; when the rotary motor 14 drives the upper ring frame 8 to rotate through gear transmission, the ultrasonic probe 1 above is further driven to rotate, so as to automatically inspect the annular weld on the pressure container 16.

[0036] The above is an example of the best implementation mode of the utility model, wherein the parts not described in detail are all the common knowledge of the ordinary skilled in the art. The protection scope of the utility model is subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A pressure vessel weld non-destructive inspection apparatus, characterised in that: The utility model relates to a kind of ultrasonic probe (1), ultrasonic probe (1) is fixedly installed in the end of telescopic arm (2) along transverse direction, telescopic arm (2) is fixedly connected to the periphery of conveying belt (3), conveying belt (3) is rotatably installed in longitudinal frame (4) along vertical direction, conveying belt (3) drives ultrasonic probe (1) to lift in the process of rotation; The longitudinal frame (4) is fixedly connected to the top of the upper ring frame (8), the bottom of the upper ring frame (8) is connected with the lower ring frame (10) through the slewing bearing (9), and the upper ring frame (8) and the lower ring frame (10) are both provided with a circular avoiding hole (15) inside, which is used for placing the pressure vessel (16) to be measured.

2. The pressure vessel weld non-destructive inspection apparatus of claim 1, wherein: The telescopic arm (2) is adjustable in transverse length.

3. The pressure vessel weld non-destructive inspection apparatus of claim 1, wherein: The conveying belt (3) is wound around the pulley (7) at both ends in the vertical direction, the pulley (7) is rotatably connected with the longitudinal frame (4), and one of the pulleys (7) is connected with the driving motor.

4. The pressure vessel weld non-destructive inspection apparatus of claim 1, wherein: The longitudinal frame (4) is connected with two sliding blocks (5) on the side, the sliding blocks (5) slide up and down along the side of the longitudinal frame (4), and the two sliding blocks (5) are fixedly connected through the connecting plate (6).

5. The pressure vessel weld non-destructive inspection apparatus of claim 4, wherein: The connecting plate (6) is fixedly connected with the telescopic arm (2) on the periphery of the conveying belt (3).

6. The pressure vessel weld non-destructive inspection apparatus of claim 1, wherein: The slewing bearing (9) comprises a rotatably connected bearing inner ring and a bearing outer ring, the bearing outer ring is fixedly connected with the upper ring frame (8) through a plurality of circumferentially distributed bolts, and the bearing inner ring is fixedly connected with the lower ring frame (10) through a plurality of circumferentially distributed bolts.

7. The pressure vessel weld non-destructive inspection apparatus of claim 6, wherein: The bearing outer ring is provided with an outer gear (12), the outer gear (12) is meshingly connected with a gear (13), the gear (13) is installed on the output shaft of the slewing motor (14), and the slewing motor (14) is fixedly installed in the lower ring frame (10) along the vertical direction.

8. The pressure vessel weld non-destructive inspection apparatus of claim 1, wherein: The bottom of the lower ring frame (10) is provided with three circumferentially distributed rollers (11).

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