CN210005479U

CN210005479U - pipeline high definition magnetic leakage detection device

Info

Publication number: CN210005479U
Application number: CN201920873668.5U
Authority: CN
Inventors: 翁志良; 贾开明; 何帮喜
Original assignee: Zhiyun An Science And Technology (beijing) Co Ltd
Current assignee: Zhiyun An Science And Technology (beijing) Co Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-01-31
Anticipated expiration: 2029-06-11

Abstract

The utility model provides an kinds of pipeline high definition magnetic leakage detection device includes power festival, detection festival, record festival in proper order, detects a plurality of sensing detection device of festival circumferential arrangement, and data acquisition volume is big, and the sensing detects the face and closely laminates by the detection face, and the signal is accurate, can realize that the high definition detects.

Description

pipeline high definition magnetic leakage detection device

Technical Field

The utility model relates to an pipeline high definition magnetic leakage detection device belongs to pipeline defect detection technical field.

Background

The pipeline is an important mode for long-distance transportation of petroleum and natural gas, the pipeline works under high pressure, long distance and severe external environment, various defects are generated on the pipe wall due to various reasons such as transmission medium corrosion, stress, construction damage, natural disasters and the like, the defects have great harmfulness to the safe operation of the pipeline, and early detection of the defects is an important means for maintaining the maintenance work of the pipeline and the integrity of the pipeline.

At present, the common in-service detection method for pipeline defects is a magnetic leakage detection technology, and the magnetic leakage detection principle is that when a ferromagnetic steel pipe is fully magnetized, magnetic lines of force in the pipe wall are blocked by defects on the surface or near surface of the ferromagnetic steel pipe, the magnetic lines of force at the defects are distorted, parts of the magnetic lines of force leak out of the inner surface and the outer surface of the steel pipe to form a magnetic leakage field, magnetic leakage signals are acquired and sensed by a magnetic sensitive element and are converted into defect electric signals, and the defect electric signals are processed by filtering, amplifying, analog-to-digital conversion and the like, so that the defect is judged.

The utility model discloses a pipeline high definition magnetic leakage detection device includes power festival, detection festival, record festival in proper order, and swing joint uses between each festival, and power festival inside is equipped with high performance, chargeable storage battery, detects a lot of sensing detection device of arranging of festival circumference, has very strong radial compressibility simultaneously, and the record festival passes through the supporting wheel and supports, and installs eddy current detection device, the utility model provides a pipeline magnetic leakage detection device, data acquisition volume is big, and the sensing detects the face and closely laminates with being detected the face, and the signal is accurate, and the single section distance is little, and it is strong with the undergauge ability to cross the turn, and duration is strong, can realize the high definition effective detection of pipeline defect.

SUMMERY OF THE UTILITY MODEL

The utility model provides a clear magnetic leakage detection device of kinds of pipeline superelevation, concrete scheme is as follows:

pipeline ultra-high-definition magnetic flux leakage detection device with double detection sections comprises power sections, detection sections and recording sections, wherein during detection, the sections are connected in series to form whole bodies, the power sections are used for driving the pipeline ultra-high-definition magnetic flux leakage detection device to move in a pipeline, and the recording sections are used for recording mileage information.

step further, the detection section includes cabin body and a plurality of detecting element, detecting element contains armature, magnetic source and drain magnetic sensing device, magnetic leakage sensing device and magnetic source install on the armature, armature is fixed through preceding, back connecting rod and detecting element spring elasticity on the cabin body.

, the cross-sectional area of the armature in the circumferential direction should be greater than the cross-sectional area of the duct wall by more than 20-50%.

And , the number of the magnetic force sources is 2, the magnetic force sources are respectively fixed at two axial ends of the armature, the magnetic poles of the 2 magnetic force sources are oppositely fixed, and the magnetic leakage sensing device is connected to the middle of the armature through a spring.

, the leakage magnetic sensing device is a three-way hall sensor.

And , the power section is driven by a power leather cup.

And , the power section adopts a high-energy density storage battery as a power source.

, the recording section is provided with an eddy current testing device.

And , mounting a support wheel for supporting the cabin and a mileage wheel for recording mileage on the recording section.

Drawings

Fig. 1 is a schematic structural diagram of embodiments of the present invention;

fig. 2 is a schematic diagram of power section of embodiments of the present invention;

fig. 3 is a schematic view of exemplary detection sections;

fig. 4 is a recording section schematic diagram of embodiments of the present invention.

Wherein: 1-power section; 2-detection section; 3-record section; 4-universal coupling; 5-front end cover; 6-front end cover fastener; 7-front power leather cup; 8-power joint cabin body; 9-a battery pack; 10-rear power leather cup; 11-rear end cap; 12-rear end cap fasteners; 13-detecting the joint cabin body; 14-a front link; 15-detection unit spring; 16-a front end magnet; 17-a sensing device; 18-a sensing device spring; 19-a back end magnet; 20-an armature; 21-rear connecting rod; 22-kidney shaped hole; 23-recording the joint cabin body; 24-a front support wheel assembly; 25-a recording unit; 26-an eddy current testing device; 27-rear support wheel assembly; 28-Mileage wheel component.

Detailed Description

The following is a detailed description of the present invention in steps with reference to the drawings:

in the embodiments of the present invention:

as shown in FIG. 1, the kinds of pipeline ultra-high-definition magnetic flux leakage detection devices are composed of a power joint, a detection joint and a recording joint from front to back, and all the joints are connected through universal couplings.

As shown in fig. 2, the power section (1) comprises a front end cover (5), a front end cover fastener (6), a front power leather cup (7), a power section cabin body (8), a storage battery pack (9), a rear power leather cup (10), a rear end cover (11) and a rear end cover fastener (12); the front power leather cup (7) is connected to the power joint cabin body (8) through the front end cover (5) and the front end cover fastener (6); the rear power leather cup (10) is connected to the power joint cabin body (8) through the rear end cover (11) and the rear end cover fastener (12); the storage battery pack (9) is chargeable, is hermetically fixed in the power joint cabin body (8), and provides a power source for the detection device. The storage battery adopts a high-energy density scheme to ensure the cruising ability of the detection device; preceding power leather cup (7) utilize fore-and-aft pressure difference with back power leather cup (10) to provide the power that advances for pipeline high definition magnetic leakage detection device jointly, and in order to guarantee detection device's the ability of bending excessively simultaneously, the distance of preceding power leather cup (7) and back power leather cup (10) should be in reasonable within range.

As shown in figure 3, the detection section (2) comprises a detection section cabin body (13), a front connecting rod (14), a detection unit spring (15), a front end magnet (16), a sensing device (17), a sensing device spring (18), a rear end magnet (19), an armature (20), a rear connecting rod (21) and a kidney-shaped hole (22), wherein the front end and the rear end of the armature (20) are respectively connected with the detection section cabin body (13) through the front connecting rod (14) and the rear connecting rod (21), the end of the rear connecting rod (21) is connected with the kidney-shaped hole (22) in the detection section cabin body (13), the lower part of the armature (20) is connected with the detection section cabin body (13) through the detection unit spring (15), the structure integrally ensures that the detection device has the diameter-reducing capacity of in a pipeline, in addition, the cross section area of the armature (20) in the circumferential direction is larger than the cross section area of the pipeline wall by more than 20-50% so as to ensure the good magnetization effect of the pipeline wall, the front end magnet (16) and the rear end magnet (19) are respectively installed at two ends of the armature (20) to form a high-intensity magnetic-resistance magnetic-sensing device, the magnetic-pole-sensing device is connected to the outer surface of the Hall sensor.

As shown in FIG. 4, the recording joint (3) further comprises a recording joint cabin body (23), a front supporting wheel component (24), a recording unit (25), an eddy current detection device (26), a rear supporting wheel component (27) and a mileage wheel component (28), wherein the front supporting wheel component (24) and the rear supporting wheel component (27) are connected to the recording joint cabin body (23) through bolt structures to jointly realize the supporting effect on the recording joint, the eddy current detection device (26) is installed between the front supporting wheel component (24) and the rear supporting wheel component (27) and used for identifying the defect information of the inner wall and the outer wall of the pipeline, meanwhile, a wear-resistant coating is arranged on the outer surface of the eddy current detection device, the rear end of the recording joint cabin body (23) is provided with the wheel component (28) which is connected to the flange surface at the rear end of the recording joint cabin body through bolts, and the mileage wheel device is provided with a tension spring to realize the.

Claims

The pipeline high-definition magnetic flux leakage detection device comprises power sections, detection sections and recording sections, wherein during detection, the sections are connected in series to form integral bodies, the power sections are used for driving the pipeline ultra-high-definition magnetic flux leakage detection device to move in a pipeline, and the recording sections are used for recording mileage information.
2. The pipeline high definition magnetic leakage detection device of claim 1, characterized in that, it includes cabin body and a plurality of detecting element to detect the festival, detecting element contains armature, magnetic source and drain magnetic sensing device, magnetic leakage sensing device and magnetic source install on the armature, armature is fixed through preceding, back connecting rod and detecting element spring elasticity on the cabin body.
3. The high-definition magnetic flux leakage detection device for the pipeline as claimed in claim 2, wherein the sum of the cross sections of the armature in the circumferential direction is more than 20-50% larger than the cross section of the pipeline wall.
4. The pipeline high definition magnetic leakage detection device of claim 2, characterized in that, the magnetic force source has 2, fixes respectively in the axial both ends of armature and 2 magnetic force sources's magnetic pole are opposite fixed, leak magnetic sensing device pass through the spring coupling in the middle part of armature.
5. The duct high-definition magnetic leakage detection device according to claim 4, wherein the magnetic leakage sensing device is a three-way Hall sensor.
6. The pipeline high-definition magnetic flux leakage detection device according to claim 1, wherein the power section is driven by a power leather cup.
7. The device for detecting the high-definition magnetic flux leakage of the pipeline according to claim 1, wherein a high-energy-density storage battery is adopted as a power source for the power section.
8. The high-definition magnetic flux leakage detection device for the pipeline according to claim 1, wherein an eddy current detection device is installed on the recording section.
9. The high-definition magnetic flux leakage detection device for the pipeline according to claim 8, wherein a support wheel for supporting the cabin body and a mileage wheel for recording mileage are mounted on the recording section.