CN-224216641-U - Synchronous self-protection electromagnetic ultrasonic pipeline inner detection device

Abstract

The utility model relates to a synchronous self-protection electromagnetic ultrasonic detection device for detecting the interior of a pipeline. The synchronous self-protection electromagnetic ultrasonic pipeline internal detection device is simple and convenient to operate, strong in adaptability, high in detection precision, strong in trafficability, safe and long in service life. The utility model discloses a synchronous self-protection electromagnetic ultrasonic pipeline internal detection device which comprises a bin body, a detection assembly, a support assembly and a moving assembly, wherein a bin cover is arranged on the bin body, the detection assembly comprises a detection probe, the support assembly comprises a first support arm and a second support arm, one ends of the first support arm and the second support arm are respectively and fixedly arranged on two opposite sides of the detection probe, the moving assembly comprises a first moving crank arm and a second moving crank arm, one ends of the first moving crank arm and the second moving crank arm are respectively provided with a moving wheel, the other end of the first support arm is rotatably connected with the other end of the first moving crank arm, and the other end of the second support arm is rotatably connected with the other end of the second moving crank arm.

Inventors

• DI XIN
• ZHANG YUXING
• HU YAN
• MA XUQING
• YAN XINGCUI
• LI HAISHAN
• WANG YIJUN
• TANG GUOSHENG
• ZHANG YANQI

Assignees

• 北京市燃气集团有限责任公司

Dates

Publication Date

20260508

Application Date

20250604

Claims (10)

1. 1. The synchronous self-protection electromagnetic ultrasonic pipeline internal detection device is characterized by comprising a bin body, a detection assembly, a support assembly and a moving assembly, wherein a bin cover is arranged on the bin body, the detection assembly comprises a detection probe, the support assembly comprises a first support arm and a second support arm, one ends of the first support arm and the second support arm are respectively and fixedly arranged on two opposite sides of the detection probe, the moving assembly comprises a first moving crank arm and a second moving crank arm, one ends of the first moving crank arm and the second moving crank arm are respectively provided with moving wheels, the first moving crank arm and the second moving crank arm are respectively and rotatably arranged at two opposite ends of the bin body along the extending direction of the bin body, the other end of the first support arm is rotatably connected with the other end of the first moving crank arm, the other end of the second support arm is rotatably connected with the other end of the second moving crank arm, and the first moving crank arm and the second moving crank arm can drive the detection probe to move synchronously with the self along the radial direction of the pipeline.
2. 2. The device for detecting the interior of the synchronous self-protection electromagnetic ultrasonic pipeline according to claim 1, wherein the supporting assembly further comprises a first connecting rod and a second connecting rod, the first fixing ring and the second fixing ring are sleeved on the bin body, one end of the first connecting rod is rotatably connected to the first supporting arm, the other end of the first connecting rod is rotatably connected to the first fixing ring, one end of the second connecting rod is rotatably connected to the second supporting arm, and the other end of the second connecting rod is rotatably connected to the second fixing ring.
3. 3. The device for detecting the interior of the synchronous self-protecting electromagnetic ultrasonic pipeline according to claim 2, wherein the supporting assembly further comprises a supporting tension spring, one end of the supporting tension spring is connected to the first supporting arm, and the other end of the supporting tension spring is connected to the second supporting arm.
4. 4. The synchronous self-protection electromagnetic ultrasonic pipeline internal detection device of claim 1, wherein the bin body is provided with a support flange, the support flange comprises a first flange plate, a second flange plate, a third flange plate and a fourth flange plate, the second flange plate and the third flange plate are respectively arranged at two opposite ends of the bin body, the first flange plate and the second flange plate are connected through a fixed rod and are arranged at intervals, the third flange plate and the fourth flange plate are connected through a fixed rod and are arranged at intervals, and the first movable crank arm and the second movable crank arm are respectively connected to the first flange plate and the fourth flange plate in a rotating mode.
5. 5. The device of claim 4, wherein the moving assembly further comprises a first supporting seat and a fourth supporting seat respectively arranged on the inner walls of the first flange plate and the fourth flange plate, a second supporting seat and a third supporting seat respectively arranged on the inner walls of the second flange plate and the fourth flange plate, a first rotating adjusting rod, a second rotating adjusting rod, a first elastic connecting rod and a second elastic connecting rod, wherein the first moving crank and the second moving crank are respectively and rotatably connected to the first supporting seat and the fourth supporting seat, one end of the first elastic connecting rod is rotatably connected with one end of the first moving crank away from the moving wheel, the other end of the first elastic connecting rod is rotatably connected with one end of the first supporting arm away from the detecting probe and one end of the first rotating adjusting rod, the other end of the first rotating adjusting rod is rotatably connected with the second supporting seat, one end of the second elastic connecting rod is rotatably connected with one end of the second moving crank away from the moving wheel, the other end of the second elastic connecting rod is rotatably connected with one end of the second supporting arm away from the detecting probe and one end of the second rotating adjusting rod, and the other end of the second supporting rod is rotatably connected with the third supporting rod.
6. 6. The device for detecting the interior of the synchronous self-protecting electromagnetic ultrasonic pipeline according to claim 5, wherein a plurality of detection probes are arranged, a plurality of groups of support assemblies and moving assemblies are arranged, the bin body is cylindrical, and the plurality of detection probes are in one-to-one correspondence with the plurality of groups of support assemblies and the plurality of groups of moving assemblies and are uniformly arranged along the circumferential direction of the bin body.
7. 7. The device of claim 6, wherein the detection assembly further comprises a probe shell corresponding to the detection probes one by one, the detection probes are arranged in the probe shell, and the first support arm and the second support arm are respectively and fixedly arranged on two opposite sides of the probe shell.
8. 8. The device for detecting the interior of the synchronous self-protection electromagnetic ultrasonic pipeline according to claim 7, wherein the detection assembly further comprises a battery pack and a storage module, wherein the battery pack and the storage module are arranged in the bin body, a plurality of wiring holes are formed in the bin body along the circumferential direction, the battery pack is electrically connected with the storage module through wires, and the storage module is respectively connected with the detection probe through an excitation cable and an acquisition cable.
9. 9. The device for detecting the interior of the synchronous self-protection electromagnetic ultrasonic pipeline according to claim 8, wherein the bin body is further provided with an anti-collision mechanism, the anti-collision mechanism comprises a fixed disc and an anti-collision frame, one end of the anti-collision frame is arranged on one surface of the fixed disc, and the other surface of the fixed disc is arranged on the outer wall of the first flange or the fourth flange.
10. 10. The synchronous self-protection electromagnetic ultrasonic pipeline internal detection device of claim 9, wherein the anti-collision frame is provided with a universal joint for power connection.

Description

Synchronous self-protection electromagnetic ultrasonic pipeline inner detection device Technical Field The utility model relates to an electromagnetic ultrasonic detection device, in particular to a synchronous self-protection electromagnetic ultrasonic detection device for detecting the interior of a pipeline. Background Electromagnetic ultrasonic detection (EMAT, electromagnetic Acoustic Testing) technology has the advantages of non-contact detection, wide detection coverage and multi-technology driving, and is widely applied to metal structure defect detection and health monitoring in the fields of petroleum and petrochemical industry, aerospace and the like. The electromagnetic ultrasonic technology can be suitable for safety inspection of oil gas pipelines, can detect sub-millimeter level defects such as girth weld crack defects, stress corrosion defects and initial defects, can avoid single detection target (only can detect certain type of pipelines with fixed caliber) in traditional magnetic leakage detection, has large driving force requirement and other application pain points, but because of the restriction of a permanent magnet or an electromagnet in a detection system, the detection probe body has adsorption force, so that the detection process is extremely easy to rigidly collide with weld flash, deformation defects and elbows, the probe is damaged, the detection accuracy is affected, and the service life of a detection device is shortened. Disclosure of utility model In order to solve the technical problems, the utility model provides the synchronous self-protection electromagnetic ultrasonic pipeline internal detection device which is simple and convenient to operate, strong in adaptability, high in detection precision, strong in trafficability, safe and long in service life. The utility model discloses a synchronous self-protection electromagnetic ultrasonic pipeline internal detection device which comprises a bin body, a detection assembly and a moving assembly, wherein a bin cover is arranged on the bin body, the detection assembly comprises a detection probe, the support assembly comprises a first support arm and a second support arm, one ends of the first support arm and the second support arm are respectively and fixedly arranged on two opposite sides of the detection probe, the moving assembly comprises a first moving crank arm and a second moving crank arm, one ends of the first moving crank arm and the second moving crank arm are respectively provided with moving wheels, the first moving crank arm and the second moving crank arm are respectively and rotatably arranged at two opposite ends of the bin body along the extending direction of the bin body, the other end of the first support arm is rotatably connected with the other end of the first moving crank arm, the other end of the second support arm is rotatably connected with the other end of the second moving crank arm, and the first moving crank arm and the second moving crank arm can drive the detection probe to move synchronously with the self along the radial direction of the pipeline. The utility model relates to a synchronous self-protection electromagnetic ultrasonic pipeline internal detection device, wherein the support assembly further comprises a first connecting rod and a second connecting rod, a first fixed ring and a second fixed ring are sleeved on the bin body, one end of the first connecting rod is rotationally connected to a first support arm, the other end of the first connecting rod is rotationally connected to the first fixed ring, one end of the second connecting rod is rotationally connected to a second support arm, and the other end of the second connecting rod is rotationally connected to the second fixed ring. The utility model relates to a synchronous self-protection electromagnetic ultrasonic pipeline internal detection device, wherein the support assembly further comprises a support tension spring, one end of the support tension spring is connected to a first support arm, and the other end of the support tension spring is connected to a second support arm. The utility model relates to a synchronous self-protection electromagnetic ultrasonic pipeline internal detection device, wherein a support flange is arranged on a bin body, the support flange comprises a first flange plate, a second flange plate, a third flange plate and a fourth flange plate, the second flange plate and the third flange plate are respectively arranged at two opposite ends of the bin body, the first flange plate and the second flange plate are connected through a fixed rod and are arranged at intervals, the third flange plate and the fourth flange plate are connected through a fixed rod and are arranged at intervals, and a first movable crank arm and a second movable crank arm are respectively connected to the first flange plate and the fourth flange plate in a rotating mode. The utility model discloses a synchronous self-protection