CN210005478U

CN210005478U - vortex and leakage flux based body type in-pipeline detector sensor module

Info

Publication number: CN210005478U
Application number: CN201920873594.5U
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 kind style pipeline internal detector sensor module based on vortex and magnetic leakage, the module has added the vortex probe on ordinary magnetic leakage sensing detection module's basis, can not only detect the magnetic leakage signal of pipe wall, has still detected the vortex feedback signal of pipe wall to can calculate the probability that the inner wall has the defect, obtained material physical characteristics raw data such as conductivity, magnetic permeability that can the portray pipe wall in addition.

Description

vortex and leakage flux based body type in-pipeline detector sensor module

Technical Field

The utility model relates to an experimental technical field of detector in the pipeline, in particular to kind of style detector sensor module in pipeline based on vortex and magnetic leakage.

Background

The magnetic leakage detection of the detection system in the oil and gas pipeline is a nondestructive detection means of common ferromagnetic materials, is commonly used in the defect detection of oil and gas pipelines, oil storage tank bottom plates, various steel plates, steel bars and steel wire ropes, and has the advantages of high detection sensitivity, no need of a coupling agent, easiness in realization of automation, no pollution and the like.

The utility model discloses a way is with vortex and the integrated in sensor module of magnetic leakage style, can detect out the magnetic leakage signal, detect the inner wall defect again through vortex sensor, calculate the magnetic saturation degree of pipe wall, calculate the physical characteristic change of pipeline material (like material conductivity, magnetic permeability change etc.), thereby make the length of detector reduce, no longer need solitary ID OD (interior outer wall differentiation) to detect the festival, and promoted the information dimension who detects original data greatly, make the testing result more accurate and comprehensive.

SUMMERY OF THE UTILITY MODEL

The utility model provides a detector sensor module in style pipeline based on vortex and magnetic leakage, concrete scheme is as follows:

kind style pipeline internal detector sensor module based on vortex and magnetic leakage, including vortex probe and magnetic leakage sensor, the magnetic leakage sensor has a plurality ofly, and every the equidistance distributes between the magnetic leakage sensor, its characterized in that still includes the controller, the controller is gathered the data of magnetic leakage sensor and vortex sensor's data, with the data transmission who gathers to recording system.

, the controller can synchronously sample the eddy current probe and the magnetic leakage sensor, and can asynchronously sample and asynchronously send the eddy current probe and the magnetic leakage sensor.

Further , the eddy current probe contains two coils connected to ground, which are connected to the detection sampling circuit via a bridge circuit.

And , the magnetic leakage sensors are distributed in a staggered and equidistant mode.

, the plurality of leakage magnetic sensors are triaxial leakage magnetic sensors.

, the eddy current probe can be multiple, and the linear distance between the multiple eddy current probes is as large as possible.

, the magnetic leakage sensors are Hall sensors, and the number of the magnetic leakage sensors is 5.

Drawings

Fig. 1 is a schematic layout diagram of main components of a circuit board according to embodiments of the present invention;

fig. 2 is a schematic layout diagram of main components of a circuit board according to another embodiment of the present invention;

fig. 3 is a schematic layout diagram of main components of a circuit board according to a third embodiment of the present invention;

fig. 4 is a schematic circuit diagram of eddy current probe circuits used in the present invention.

Wherein: 1-an eddy current probe; 2-a magnetic flux leakage sensor; a-a coil; b-coil.

Detailed Description

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

example 1:

as shown in FIG. 1, in the present embodiment, the type in-pipe detector sensor module based on eddy current and leakage flux is circuit board, the eddy current probe 1 has 2 and is arranged along the diagonal of the circuit board, the leakage flux sensors 2 have 5 and are all three-axis leakage flux sensors, each three-axis leakage flux sensor respectively captures the axial, axial and radial magnetic induction intensity signals of the detected pipe, and the 5 leakage flux sensors 2 are arranged among the 2 eddy current probes 1 and are distributed at equal intervals of the 5 leakage flux sensors 2.

As shown in fig. 4, in the present embodiment, the eddy current probe 1 includes coils a and B, the coils a and B are connected in common, and under the excitation of the oscillator, the detection signals generated by the coils a and B are input into the operational amplifier through a bridge circuit composed of R1, R2, C1 and C2, and are sent to the detector after being sorted for sampling. The oscillator can continuously oscillate to excite the output of the eddy current probe and can also stop vibrating when magnetic flux leakage is sampled, so that interference on a magnetic flux leakage sensing element is avoided.

When the module described in this embodiment operates, the magnetic leakage sensor detects a magnetic leakage signal of the pipe wall, and the eddy current probe detects an eddy current feedback signal of the pipe wall. The type, size and position of the pipe wall defect can be detected based on the magnetic leakage signal, and the probability of the defect existing in the inner wall of the pipeline can be calculated based on the eddy current feedback signal, so that the accuracy of the pipeline defect detection is improved. Meanwhile, the original data of physical characteristics (such as conductivity, magnetic conductivity and the like) of the material which can be used for describing the pipe wall is obtained.

Example 2:

as shown in FIG. 2, in this embodiment, the type in-pipe detector sensor module based on eddy current and leakage flux is circuit board, the eddy current probe 1 has 2, and is arranged along the diagonal of the circuit board, the leakage flux sensors 2 have 9, and are all three-axis leakage flux sensors, each three-axis leakage flux sensor captures the axial, axial and radial magnetic induction intensity signals of the detected pipe respectively, the 9 leakage flux sensors 2 are arranged between the 2 eddy current probes 1, and the 9 leakage flux sensors 2 are divided into two left columns and two right columns, and are distributed at equal intervals in a staggered mode.

Example 3:

as shown in FIG. 3, in this embodiment, the type in-pipe detector sensor module based on eddy current and leakage flux is a circuit board, the eddy current probe 1 has 1 and is arranged at the upper left corner of the circuit board, the leakage flux sensors 2 have 9 and are all three-axis leakage flux sensors, each three-axis leakage flux sensor respectively captures axial, axial and radial magnetic induction intensity signals of a detected pipe, the 9 leakage flux sensors 2 are arranged between the 2 eddy current probes 1, and the 9 leakage flux sensors 2 are divided into a left column and a right column and are distributed in an interlaced equidistant mode.

Claims

1, kind style pipeline internal detector sensor module based on vortex and magnetic leakage, including vortex probe and magnetic leakage sensor, the magnetic leakage sensor has a plurality ofly, and every the equidistance distributes between the magnetic leakage sensor, its characterized in that still includes the controller, the controller is gathered magnetic leakage sensor's data and vortex sensor's data, with the data transmission who gathers to recording system.

2. The body type in-pipeline detector sensor module based on eddy current and leakage magnetic as claimed in claim 1, wherein the controller can sample the eddy current probe and leakage magnetic sensor synchronously and also can sample the eddy current probe and leakage magnetic sensor asynchronously and send them asynchronously.

3. The eddy current and leakage flux based body type in-pipe detector sensor module of claim 2, wherein two common ground coils are contained within the eddy current probe, and the coils deliver signals to a detection sampling circuit through an operational amplifier via a bridge circuit.

4. The vortex and leakage flux based body duct detector sensor module of claim 1, wherein the plurality of leakage flux sensors are staggered equidistantly.

5. The body duct detector sensor module based on eddy current and leakage flux of claim 1, wherein the plurality of leakage flux sensors are three-axis leakage flux sensors.

6. The body type in-pipe detector sensor module based on eddy current and leakage magnetic according to claim 1, wherein the eddy current probe can be multiple, and the straight distance between the multiple eddy current probes is as large as possible.

7. The body type in-pipe detector sensor module based on eddy current and leakage magnetic as claimed in claim 1, wherein the leakage magnetic sensor is a hall sensor, and the number of the leakage magnetic sensor is 5.