CN-122017003-A - Pulsed eddy current corrosion detection equipment

CN122017003ACN 122017003 ACN122017003 ACN 122017003ACN-122017003-A

Abstract

The invention discloses pulse vortex corrosion detection equipment which comprises a controller, a transverse movement detection frame, a linkage assembly, a driving assembly, a transverse movement detection mechanism and two supporting driving seats, wherein the two supporting driving seats are arranged on a pressure pipeline at intervals along the axial direction, the transverse movement detection frame is arranged between the two supporting driving seats and is parallel to the pressure pipeline to be detected, the transverse movement detection mechanism comprises a transverse movement sliding block which is arranged on the transverse movement detection frame in a matching manner, a detection probe is arranged on one side of the transverse movement sliding block, facing the pressure pipeline, of the transverse movement sliding block, the detection probe is connected with the controller, and the controller is used for controlling the opening and closing of the detection probe and processing and analyzing received signals.

Inventors

GAO HUIJUAN
SONG HONGCHANG
ZHANG JUNFENG
ZHANG JIAN
LU YANFENG
GUO XIUQIN
Li Xunpei
LI ZHAO
GUO LIUJIE
BAI KAI

Assignees

洋浦有成科技有限公司

Dates

Publication Date: 20260512
Application Date: 20240203

Claims (8)

1. The pulse eddy corrosion detection device is characterized by comprising a controller, a transverse movement detection frame, a linkage assembly, a driving assembly, a transverse movement detection mechanism and two supporting driving seats, wherein the two supporting driving seats are axially arranged on a pressure pipeline at intervals, the transverse movement detection frame is arranged between the two supporting driving seats and is parallel to the pressure pipeline to be detected, the transverse movement detection mechanism comprises a transverse movement sliding block which is matched and arranged on the transverse movement detection frame, a detection probe is arranged on one side of the transverse movement sliding block, which faces the pressure pipeline, of the transverse movement detection frame, the detection probe is connected with the controller, the controller is used for controlling the opening and closing of the detection probe and processing and analyzing received signals, the supporting driving seats comprise an annular fixed seat, an annular rotating seat, a driving shaft, a fixed toothed ring and a rotating gear, the fixed seat is fixedly sleeved on the pressure pipeline, the rotating seat is rotatably sleeved on the fixed seat, the driving shaft is in a transmission connection with the end part of the adjacent side of the transverse movement detection frame through the assembly, the fixed toothed ring is fixedly arranged on the fixed seat, and the fixed toothed ring is fixedly meshed with the fixed seat, and the fixed toothed seat is fixedly arranged on the fixed seat.
2. The pulse vortex corrosion detection device according to claim 1, wherein the transverse movement detection frame comprises guide rods which are arranged at intervals parallel to a pressure pipeline to be detected, right-angle seats are arranged at the front end and the rear end of the guide rods, the right-angle seats comprise bottom plates which are rotatably sleeved on a driving shaft, vertical plates are vertically fixed at one ends of the bottom plates, which are far away from a same-side fixed toothed ring, of the guide rods, the front end and the rear end of the guide rods are vertically connected with the adjacent side vertical plates, screw rods are arranged at intervals parallel to one side of the guide rods, the front end and the rear end of each screw rod are rotatably sleeved on the same-side vertical plates respectively, the front end and the rear end of each screw rod are in transmission connection with the driving shaft of the same-side supporting driving seat respectively through two-side linkage assemblies, and the transverse movement sliding blocks are matched and arranged on the guide rods and the screw rods.
3. The pulsed eddy current corrosion inspection apparatus according to claim 2, wherein the linkage assembly includes a drive bevel gear fixedly sleeved on the drive shaft above the base plate and a driven bevel gear fixedly sleeved on the bolt on the rear side of the drive bevel gear and engaged with the drive bevel gear.
4. The pulsed eddy current corrosion detection device according to claim 1, wherein the detection probe comprises a housing, a supporting rod connected with a traversing slide block is arranged at the top of the housing, a high-frequency pulsed eddy current probe and a low-frequency pulsed eddy current probe are sequentially arranged in the housing from front to back at intervals, and the high-frequency pulsed eddy current probe and the low-frequency pulsed eddy current probe are connected with a controller.
5. The pulsed eddy current corrosion inspection apparatus according to claim 1, wherein the drive assembly includes a mounting table fixedly provided on the rotary base, a drive motor is fixed to the mounting table, the drive motor is connected to the controller, and a motor shaft of the drive motor is disposed toward the drive shaft and is in transmission connection through the bevel gear set.
6. The pulsed eddy current corrosion detection device according to claim 1, wherein the rotary seat comprises two semi-ring seats which are symmetrically arranged, the driving shaft is fixed on the outer cambered surface of any semi-ring seat in a radial rotation mode, the left end and the right end of each semi-ring seat are respectively provided with a matched connecting table, bolt holes are formed in the connecting tables in a matched mode, and the two semi-ring seats are connected together through bolts to form a complete annular rotary seat.
7. The pulse eddy current corrosion detection device according to claim 1, wherein the fixing seat comprises annular end bases which are symmetrically fixed and sleeved on the pressure pipe to be detected, the end bases are formed by combining two semi-annular base bodies fixed together through bolts, the fixed toothed ring is formed by two semi-annular toothed ring bodies which are respectively fixed on the rear end faces of the two base bodies of the front end base, a sleeve is sleeved outside the pressure pipe to be detected between the two annular bases, the sleeve is formed by combining two semi-sleeves which are symmetrically arranged, and two ends of each semi-sleeve are respectively provided with a semi-annular flange and are coaxially and fixedly connected with the adjacent side annular base through bolts.
8. The pulsed eddy current corrosion detection device according to claim 1, wherein an arc-shaped protection plate is arranged between the detection probe and the outer wall of the pressure pipeline to be detected, the front end and the rear end of the arc-shaped protection plate are respectively connected with a rotating seat of the same-side supporting driving seat, and a cooling pipeline is arranged on the arc-shaped protection plate and is connected with a cooling liquid circulating machine.

Description

Pulsed eddy current corrosion detection equipment Technical Field The invention belongs to the technical field of pipeline corrosion detection, and particularly relates to pulse vortex corrosion detection equipment. Background In the fields of petroleum, chemical, electrical, metallurgical and other industries, ferromagnetic metal pipes are used in large quantities for transporting and storing liquid or gaseous media having high temperature, high pressure and corrosiveness. Abrasion and fluid accelerated corrosion can lead to large-area wall thickness corrosion thinning and even perforation of the ferromagnetic pipeline, and accidents such as leakage and explosion are easy to cause. Corrosion will lead to a decrease in the pressure-bearing properties of the pipeline, leading to casualties and economic losses. The corrosion condition of the pipeline needs to be detected and evaluated in a nondestructive mode at regular intervals, and safe operation of the pipeline is ensured. The traditional pipeline corrosion detection method mainly relies on manual inspection or uses equipment such as a pressure sensor to monitor, in the detection, a detection probe 53 needs to be directly attached to the outer wall of a coating layer of a pipeline or a certain lifting distance is reserved, inspection personnel needs to inspect through directly holding the detection probe 53 or holding a connecting rod connected with the detection probe 53, the detection mode is time-consuming and labor-consuming, the efficiency is low, meanwhile, the detection by manually holding the probe is necessary to inspect the change of the height of the detection and the problems caused by other artificial interference, the detection error exists, and the accuracy of the detection result is low. Disclosure of Invention Aiming at the defects and problems of the conventional pipeline corrosion detection device, the invention provides pulse vortex corrosion detection equipment which is unique in structure, ingenious in design and capable of being directly installed on a pressure pipeline to automatically move along the pipeline in a spiral manner for corrosion detection, and the problems of low efficiency and large error of the conventional manual pipeline corrosion detection are effectively solved. The technical problem is solved by adopting a scheme that the pulse eddy corrosion detection device comprises a controller, a transverse movement detection frame, a linkage assembly, a driving assembly, a transverse movement detection mechanism and two supporting driving seats, wherein the two supporting driving seats are axially arranged on a pressure pipeline at intervals, the transverse movement detection frame is arranged between the two supporting driving seats and is parallel to the pressure pipeline to be detected, the transverse movement detection mechanism comprises a transverse movement sliding block which is matched and arranged on the transverse movement detection frame, a detection probe is arranged on one side of the transverse movement sliding block, facing the pressure pipeline, the detection probe is connected with the controller, the controller is used for controlling the opening and closing of the detection probe and processing and analyzing a received signal, the supporting driving seats comprise an annular fixed seat, an annular rotating seat, a driving shaft, a fixed toothed ring and a rotating gear, the fixed toothed ring is fixedly sleeved on the pressure pipeline, the rotating seat is rotatably sleeved on the fixed seat, the driving shaft is radially arranged on the outer annular surface of the rotating seat, the top end of the driving shaft is in transmission connection with the end part of the adjacent side detection frame through the linkage assembly, the transverse movement detection frame can be driven by the transverse movement detection assembly to move along the detection toothed ring when the driving shaft rotates, the transverse movement detection assembly is arranged on one side of the transverse movement detection frame, the corresponding to the fixed toothed ring is arranged on the fixed toothed ring and is fixedly meshed with the fixed toothed seat, and is fixedly arranged on the fixed toothed seat. The transverse movement detection frame comprises guide rods which are arranged at intervals parallel to a pressure pipeline to be detected, right-angle seats are arranged at the front end and the rear end of each guide rod, each right-angle seat comprises a bottom plate which is rotationally sleeved on a driving shaft, one end of each bottom plate, which is far away from a fixed toothed ring at the same side, is vertically fixed with a vertical plate, the front end and the rear end of each guide rod are vertically connected with the vertical plates at the adjacent side, screw rods are arranged at intervals parallel to one side of each guide rod, the front end and the rear end of each screw rod are respectively rotational