CN113049751A

CN113049751A - Conveying pipeline outer wall detection device

Info

Publication number: CN113049751A
Application number: CN202110275483.6A
Authority: CN
Inventors: 何先龙; 孙得璋; 马斌; 唐芳宗; 贾行建
Original assignee: Hebei Zhenchuang Electronic Technology Co ltd
Current assignee: Hebei Zhenchuang Electronic Technology Co ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-06-29
Anticipated expiration: 2041-03-15
Also published as: CN113049751B

Abstract

The invention belongs to the technical field of pipeline detection, and particularly relates to a detection device for an outer wall of a conveying pipeline. Two identical detection device units are arranged on the outer side of the conveying pipeline, and each detection device unit comprises a moving part and a detection part; the movable part comprises a first mounting plate, a second mounting plate, a driving device, a pipeline clamping device and a creeping pipe, wherein the lower parts of the first mounting plate and the second mounting plate are respectively provided with a first arc-shaped groove and a second arc-shaped groove, the outer sides of the first arc-shaped groove and the second arc-shaped groove are respectively provided with the pipeline clamping device, the outer side of the first arc-shaped groove is also provided with the driving device, and the creeping pipe is arranged between the first mounting plate and the second mounting plate. This technical scheme is used for solving the removal effect of pipeline detection device on the pipeline among the prior art not good, and can not remove on the pipeline that has certain crookedness, brings very limited problem for pipeline detection work.

Description

Conveying pipeline outer wall detection device

Technical Field

The invention belongs to the technical field of pipeline detection, and particularly relates to a detection device for an outer wall of a conveying pipeline.

Background

In factories and enterprises, solutions, gases, etc. are transported through pipes, and often in parallel with multiple pipes. The working environment of the pipeline is complex and severe, the inside and the outside of the pipeline can be widely contacted with media such as smoke, fire, ash, water, steam, wind, dirt and the like, and the pipe is subject to the actions of high temperature, high pressure and the like. Due to the existence of oxidation, corrosion and the like, the pipeline is often subjected to the abnormity of sinking or bulging and the like, so that the pipe explosion leakage accident is easily caused, and the production is seriously influenced.

Therefore, the pipeline in the factory needs to be regularly detected by adopting a detection device, so that the potential safety hazard can be conveniently eliminated in an early stage. But traditional pipeline detection device is poor in the removal effect on pipeline, can not be fine carry check out test set to assigned position, seriously influences the effect that the pipeline detected, and traditional pipeline detection device can not adapt to the crookedness of pipeline, can only remove on straight pipeline, brings a lot of limitations for pipeline detection.

Disclosure of Invention

In view of the above technical shortcomings, an object of the present invention is to provide a device for detecting an outer wall of a conveying pipeline, which is used to solve the problem that the prior art has a poor moving effect on the pipeline, cannot move on the pipeline with a certain curvature, and brings a great limitation to the pipeline detection work.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a detection device for the outer wall of a conveying pipeline comprises the conveying pipeline and a control system, wherein two identical detection device units are arranged on the outer side of the conveying pipeline, and each detection device unit comprises a moving part and a detection part;

the moving component comprises a first mounting plate, a second mounting plate, a driving device, a pipeline clamping device and a creeping pipe, wherein the lower parts of the first mounting plate and the second mounting plate are respectively provided with a first arc-shaped groove and a second arc-shaped groove, the outer sides of the first arc-shaped groove and the second arc-shaped groove are respectively provided with the pipeline clamping device, the outer side of the first arc-shaped groove is also provided with the driving device, the creeping pipe is arranged between the first mounting plate and the second mounting plate, the end parts of the creeping pipe are respectively and fixedly connected with the inner parts of the first arc-shaped groove and the second arc-shaped groove, and the driving device is used for driving the creeping pipe to move outside the conveying pipeline;

the detection part comprises a half-arc sliding ring, a half-arc sliding block is arranged in the half-arc sliding ring, the half-arc sliding block and the half-arc sliding ring are connected in a rotating mode, the inner side wall of the half-arc sliding block is provided with pipeline detectors which are uniformly distributed on the circumference, and the detection part is fixedly arranged on the outer side of the pipeline clamping device.

The working principle of the technical scheme is as follows: the two detection units are assembled on the outer side of the conveying pipeline in an encircling mode, the peristaltic tube is enabled to achieve the effect of shrinking on the conveying pipeline under the action of the driving device, meanwhile, due to the existence of the pipeline clamping device, one end of the peristaltic tube is fixed when the peristaltic tube stretches and retracts, the peristaltic tube is enabled to move on the conveying pipeline, and meanwhile, the detector on the detection component can conduct movement detection on the conveying pipeline in the moving process.

Further inject, the pipe of wriggling includes evenly distributed's a plurality of semicircle ring, the inside cavity of semicircle ring and tip are sealed, and are adjacent be equipped with a plurality of elastic components that the circumference was evenly arranged between the semicircle ring, the inside cavity of elastic component and semicircle ring intercommunication are located the semicircle ring of pipe tip of wriggling is respectively in the inner wall fixed connection of first arc wall and second arc wall, with be equipped with the gas pocket on first arc wall fixed connection's the semicircle ring lateral wall.

In conclusion, the working principle and the beneficial effects of the peristaltic tube are as follows: the peristaltic tube has the advantages that the peristaltic tubes are encircled on the outer wall of the conveying pipeline, the elastic tubes arranged between the semicircular rings in the peristaltic tubes have bending capacity, and when the peristaltic tubes move, the elastic pieces can generate corresponding deformation according to the shape of the pipeline, so that the peristaltic tubes have profiling capacity when moving on the conveying pipeline, and can move on the conveying pipeline with a certain curve.

Further inject, drive arrangement is the vacuum pump, the exhaust tube of vacuum pump and the inlet port intercommunication on the semicircle ring, the vacuum pump blast pipe passes first mounting panel and second mounting panel, extends to the top of half arc slider, the exhaust tube and the blast pipe of vacuum pump are the hose.

In conclusion, the vacuum pump in the detection device is used for providing power for the peristaltic tube, the principle is that the peristaltic tube is contracted by pumping air in the peristaltic tube, the air enters the peristaltic tube when the pumping is stopped, and the air quantity in the peristaltic tube is controlled, so that the peristaltic tube can move telescopically on the conveying pipeline, the purpose that the peristaltic tube moves on the conveying pipeline is achieved, and meanwhile, the suction tube and the exhaust tube are hoses, and the interference to the movement of the peristaltic tube is avoided when the outer bent tube part moves.

Further inject, the outside of half arc slider is equipped with the blade of circumference evenly distributed, the surface to the blade is faced in the slope of vacuum pump exhaust pipe tip, and its beneficial effect lies in, when the vacuum pump is in the air of suction peristaltic tube, the exhaust gas of blast pipe soaks certain pressure, can blow the blade to drive half arc slider at half arc sliding ring internal rotation, reach the purpose that its inside detector carries out rotation detection to the pipeline, and then promote the detection effect of detector to the pipeline outer wall defect.

Further inject, the pipeline clamping device includes fixed plate and linear electric motor, the fixed plate is fixed respectively on first mounting panel and second mounting panel, linear electric motor fixed connection is on the fixed plate, and linear electric motor's output shaft point to pipeline's axis, and its beneficial effect lies in, when peristaltic pipe contracts and extends, fixes peristaltic pipe's one end on pipeline through linear electric motor's effect, can only be one end motion when making peristaltic pipe move to promote peristaltic pipe's the removal effect on pipeline.

Further inject, linear electric motor's output shaft tip is equipped with the arc, be equipped with the slipmat on the medial surface of arc, the protection pad is the rubber slipmat, and its beneficial lies in, the area of contact of arc increase and pipeline makes linear electric motor's rigidity more firm, and the slipmat sets up simultaneously, avoids the both ends of peristaltic pipe the gliding condition simultaneously to appear, further promotes the removal effect of peristaltic pipe on pipeline.

Further inject, be equipped with the recess in the semicircle ring of one of them detection device unit that the pipeline outside set up, another the semicircle ring tip of detection device unit is equipped with the lug, lug and recess joint during the installation, and its beneficial part lies in, when this detection device installed on pipeline, two semicircle rings in the detection device unit in two pipeline outsides carry out the spacing of horizontal migration direction under the effect of recess and lug, make relative motion can not appear between each semicircle ring to promote the flexible effect of peristaltic tube, reach the purpose that promotes the motion effect of peristaltic tube on pipeline.

Further, the cross section of the installed half-arc sliding ring on one detection part and the cross section of the installed half-arc sliding ring on the other detection part on the outer side of the conveying pipeline are circular, the cross section of the installed half-arc sliding block on one detection part and the installed half-arc sliding block on the other detection part on the outer side of the conveying pipeline are circular, and the two installed half-arc sliding blocks can freely rotate in the two half-arc sliding rings.

Further inject, be equipped with the admission valve on the exhaust duct of vacuum pump, admission valve and control system electric connection, its beneficial part lies in that control system control admission valve is opened, realizes that the gas gets into in the peristaltic pipe to need not make the vacuum pump shut down the work, so the blast pipe of vacuum pump can realize continuously exhausting, guarantees the continuous rotation of half arc sliding ring, makes the detector better to pipeline's detection effect.

Further inject, the semicircle ring of wriggling pipe tip is fixed respectively in the outside of first mounting panel and second mounting panel, and first mounting panel the diameter of first arc wall and second arc wall equals, and the diameter of first arc wall and second arc wall is less than the diameter of semicircle ring, and its beneficial part lies in, when pipeline clamping device fixes the one end of this device on pipeline, probably can make this device have the deflection on pipeline, the diameter of second arc wall and second arc wall is less than the diameter of semicircle ring, make first arc wall or second arc wall as with pipeline's contact site, avoid the semicircle ring to be deflected and support tightly on pipeline, guarantee the flexible effect of wriggling pipe on pipeline.

The invention has the advantages that: air in the peristaltic tube is pumped by the vacuum pump, so that the peristaltic tube is contracted, the peristaltic tube moves on the conveying pipeline, and the moving effect of the device on the conveying pipeline is ensured. (2) The elastic piece in the peristaltic pipe has certain deformability, still has fine removal effect at the bend pipe part of conveying pipeline, makes this device can remove at the bend part of conveying pipeline, has certain ability of preventing taking shape, has promoted the application range of this device. (3) Utilize the characteristic that exhaust gas has certain pressure in the vacuum pump exhaust pipe, order about the half-arc sliding ring and rotate, make the detector can realize detecting the optional dress of pipeline, promoted the detection effect of this device to pipeline.

Drawings

Fig. 1 is a perspective view of the detecting device according to the present embodiment.

Fig. 2 is a schematic perspective view of another angle of the detecting device in this embodiment.

Fig. 3 is a schematic perspective view of the detection unit in this embodiment.

Fig. 4 is a plan view of the detection device in this embodiment.

Fig. 5 is a right side view schematically illustrating the detecting device of the present embodiment mounted on a conveying pipeline.

FIG. 6 is a left side view of the detecting device installed on a conveying pipeline in this embodiment.

Fig. 7 is a schematic view of the connection between the two semicircular rings in this embodiment.

Reference numerals

Conveying pipeline 1, first mounting plate 2, second mounting plate 21, vacuum pump 22, exhaust pipe 23, exhaust pipe 24, mounting seat 25, linear motor 26, semicircular ring 27, groove 271, bump 272, elastic component 28, semi-arc sliding ring 3, semi-arc sliding block 31, blade 32 and detector 4

Detailed Description

The following is further detailed by way of specific embodiments:

as shown in fig. 1, fig. 2, fig. 5, fig. 6 and fig. 7, a device for detecting the outer wall of a conveying pipeline comprises two detecting device units fixed to each other on the outer wall of the conveying pipeline 1, wherein one detecting device unit mainly comprises a moving part and a detecting part, the detecting part is fixed to one end of the moving part, and the detecting device can move on a bent pipe with a certain radian.

The moving part mainly comprises a first mounting plate 2 and a second mounting plate 21 at two ends, when the detection device is mounted on the conveying pipeline 1, the connection can be disassembled between the first mounting plates 2 at the outer side of the conveying pipeline 1 at the same end, and the connection can be disassembled at the end part of the second mounting plate 21 at the outer side of the conveying pipeline 1 at the other end, specifically, the locking pin connection is realized. Be equipped with the peristaltic pipe between first mounting panel 2 and second mounting panel 21, the peristaltic pipe includes a plurality of semicircle ring 27, in this embodiment, the quantity of semicircle ring 27 is 5, be equipped with the elastic component 28 that a plurality of circumferences were evenly arranged between adjacent semicircle ring 27, elastic component 28 quantity between adjacent semicircle ring 27 is 3 in this embodiment, and elastic component 28 is the spring, specific connected mode does, the inside of semicircle ring 27 is cavity, and both ends are sealed, elastic component 28 is inside cavity equally also, and both ends and the inside intercommunication of semicircle ring 27, concatenate semicircle ring 27, the inside fixed connection of the first arc wall and the second arc wall that set up on semicircle ring 27 and first mounting panel 2 and the second mounting panel 21 at both ends of peristaltic pipe, the outside of semicircle ring 27 on first arc wall is seted up and is convenient for gas entering and combustion gas hole.

In order to make the peristaltic tube perform telescopic movement, a driving device is fixed on the first mounting plate 2, the driving device is a vacuum pump 22 in the embodiment, and of course, a device capable of sucking air such as a fan and the like can also be used, an exhaust pipe 23 of the vacuum pump 22 is connected with an air hole on the semicircular ring 27, an exhaust pipe 24 of the vacuum pump 22 penetrates through the first mounting plate 2 and the second mounting plate 21, the end part of the exhaust pipe is positioned above the detection device, and the purpose that the exhaust pipe 23 and the exhaust pipe 24 are hoses is to avoid interference on the movement of the peristaltic tube when the outward-bent tube part moves. Be equipped with the admission valve on vacuum pump 22's the exhaust tube 23 way, admission valve and control system electric connection, its beneficial part lies in, control system control admission valve is opened, realizes that gas gets into in the wriggling pipe to need not make vacuum pump 22 carry out the stop work, so vacuum pump 22's blast pipe 24 can realize continuing to exhaust, guarantees half arc sliding ring 3's continuous rotation, makes detector 4 better to pipeline 1's detection effect.

As shown in fig. 3 and 4, the first mounting plate 2 and the second mounting plate 21 are both provided with a pipe clamping device, which aims to fix one end of the peristaltic pipe on the clamping device when the peristaltic pipe performs telescopic motion, so that one end of the peristaltic pipe is stretched, and the moving effect of the peristaltic pipe on the conveying pipe 1 can be improved by alternately fixing the pipe clamping devices on the first mounting plate 2 and the second mounting plate 21. In this embodiment, the pipeline clamping device specifically includes motor cabinet 25 fixed on first mounting panel 2 and second mounting panel 21 to and fix linear electric motor 26 on motor cabinet 25, control system electric connection among linear electric motor 26 and this device, the directional conveying pipeline 1's of output shaft of linear electric motor 26 center pin, the principle is that control system control linear electric motor 26's output is flexible, supports tightly first mounting panel 2 or second mounting panel 21 on conveying pipeline 1, thereby realizes the end fixing. Preferably, the diameter of the first arc-shaped groove is smaller than that of the semi-circular ring 27 and slightly larger than that of the conveying pipeline 1, so that the pipeline clamping device can not press and fix the peristaltic pipeline on the conveying pipeline 1, and the movement of the peristaltic pipeline is smoother. Linear electric motor 26's output shaft tip is equipped with the arc, is equipped with the slipmat on the medial surface of arc, and the protection pad is the rubber slipmat, and its beneficial lies in, the area of contact of arc increase and pipeline 1 makes linear electric motor 26's rigidity more firm, and the slipmat setting simultaneously avoids the both ends of the pipe of creeping to appear the condition of gliding simultaneously, further promotes the removal effect of the pipe of creeping on pipeline 1.

As shown in fig. 4 and 7, the detecting component includes a half-arc sliding ring 3, a half-arc sliding block 31 is arranged in the half-arc sliding ring 3, the half-arc sliding block 31 and the half-arc sliding ring 3 are rotatably connected, the inner side wall of the half-arc sliding block 31 is provided with a pipeline detector 4 with uniformly distributed circumference, the detecting component is fixedly arranged at the outer side of the pipeline clamping device, the section of the half-arc sliding ring 3 on one detecting component at the outer side of the conveying pipeline 1 and the section of the half-arc sliding ring 3 on the other detecting component after being installed are circular, the section of the half-arc sliding block 31 on one detecting component at the outer side of the conveying pipeline 1 and the section of the half-arc sliding block 31 on the other detecting component after being installed are circular, the two half-arc sliding blocks 31 can freely rotate in the two half-arc sliding rings 3, the outer side of the half-arc sliding block, the detection device has the beneficial effects that when the vacuum pump 22 sucks air in the peristaltic tube, the gas exhausted by the exhaust pipe 24 penetrates through a certain pressure and can blow the blade 32, so that the half-arc sliding block 31 is driven to rotate in the half-arc sliding ring 3, the purpose of performing rotation detection on the pipeline by the detector 4 in the half-arc sliding ring is achieved, and the detection effect of the detector 4 on the defects of the outer wall of the conveying pipeline 1 is further improved. Preferably, be equipped with recess 271 in the semicircle ring 27 of one of them detection device unit that sets up in the pipeline 1 outside, another the semicircle ring 27 tip of detection device unit is equipped with lug 272, lug 272 and recess 271 joint during the installation, and its beneficial effects lie in, when this detection device was installed on pipeline 1, two semicircle rings 27 in the detection device unit in two pipeline 1 outsides carry out the spacing of horizontal migration direction under the effect of recess 271 and lug 272, make relative motion can not appear between each semicircle ring 27 to promote the flexible effect of peristaltic tube, reach the purpose that promotes the motion effect of peristaltic tube on the pipeline.

In the technical scheme, when the first mounting plate 2 is positioned at the front end of the advancing direction of the device, the motion control part of the device is based on the principle that the control system controls the output end of a linear motor 26 on the first mounting plate 2 to extend out of the outer side of the pipeline, limits the first mounting plate 2 on the conveying pipeline 1, controls a vacuum pump 22 to pump in the peristaltic pipe to enable the peristaltic pipe to contract towards the first mounting plate 2, controls the output end of a linear motor 26 on the second mounting plate 21 to extend out, fixes the second mounting plate 21 on the conveying pipeline 1, controls the output end of the linear motor 26 on the first mounting plate 2 to retract, simultaneously disconnects the power supply of the vacuum pump 22, enables the peristaltic pipe to intake air in the peristaltic pipe to extend out towards the first mounting plate 2, and finally controls the output end of the linear motor 26 on the second mounting plate 21 to retract, the above steps are repeated in this way, and the device can move on the conveying pipeline 1.

It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used broadly in the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A detection device for the outer wall of a conveying pipeline comprises the conveying pipeline and a control system, and is characterized in that two identical detection device units are arranged on the outer side of the conveying pipeline, and each detection device unit comprises a moving part and a detection part;

2. The device for detecting the outer wall of the conveying pipeline according to claim 1, wherein the peristaltic pipe comprises a plurality of semicircular rings which are uniformly distributed, the inner parts of the semicircular rings are hollow, the end parts of the semicircular rings are closed, a plurality of elastic pieces which are uniformly distributed in the circumference are arranged between the adjacent semicircular rings, the inner parts of the elastic pieces are hollow and communicated with the semicircular rings, the semicircular rings at the end parts of the peristaltic pipe are fixedly connected with the inner walls of the first arc-shaped groove and the second arc-shaped groove respectively, and air holes are formed in the outer side walls of the semicircular rings fixedly connected with the first arc-shaped groove.

3. The conveying pipeline outer wall detection device according to claim 1 or 2, wherein the driving device is a vacuum pump, an exhaust pipe of the vacuum pump is communicated with the air inlet hole in the semicircular ring, an exhaust pipe of the vacuum pump penetrates through the first mounting plate and the second mounting plate and extends to the upper side of the semicircular arc slide block, and the exhaust pipe of the vacuum pump are hoses.

4. The device for detecting the outer wall of the conveying pipeline according to claim 3, wherein the outer side of the semi-arc sliding block is provided with blades which are uniformly distributed on the circumference, and the end part of the exhaust pipe of the vacuum pump is obliquely directed to the surface of each blade.

5. The device for detecting the outer wall of the conveying pipeline according to claim 1, wherein the pipeline clamping device comprises a fixing plate and a linear motor, the fixing plate is respectively fixed on the first mounting plate and the second mounting plate, the linear motor is fixedly connected to the fixing plate, and an output shaft of the linear motor points to the axis of the conveying pipeline.

6. The device for detecting the outer wall of the conveying pipeline according to claim 5, wherein an arc-shaped plate is arranged at the end part of the output shaft of the linear motor, a non-slip mat is arranged on the inner side surface of the arc-shaped plate, and the protective mat is a rubber non-slip mat.

7. The device for detecting the outer wall of the conveying pipeline according to claim 1, wherein a groove is formed in a semicircular ring of one of the detection device units arranged on the outer side of the conveying pipeline, a convex block is arranged at the end part of the semicircular ring of the other detection device unit, and the convex block is clamped with the groove during installation.

8. The device for detecting the outer wall of the conveying pipeline according to claim 1, wherein the section of the mounted half-arc sliding ring on one of the detecting parts and the section of the mounted half-arc sliding ring on the other detecting part outside the conveying pipeline are circular, the section of the mounted half-arc sliding block on one of the detecting parts and the section of the mounted half-arc sliding block on the other detecting part outside the conveying pipeline are circular, and the two half-arc sliding blocks after mounting can freely rotate in the two half-arc sliding rings.

9. The device for detecting the outer wall of the conveying pipeline according to claim 1, wherein an air inlet valve is arranged on an air exhaust pipeline of the vacuum pump, and the air inlet valve is electrically connected with a control system.

10. The device for detecting the outer wall of the conveying pipeline according to claim 1, wherein the semicircular rings at the end parts of the peristaltic pipes are respectively fixed on the outer sides of the first mounting plate and the second mounting plate, the diameters of the first arc-shaped groove and the second arc-shaped groove of the first mounting plate are equal, and the diameters of the first arc-shaped groove and the second arc-shaped groove are smaller than the diameter of the semicircular rings.