CN116858755A - Stray current corrosion resistance detection device for metal pipeline along subway line - Google Patents
Stray current corrosion resistance detection device for metal pipeline along subway line Download PDFInfo
- Publication number
- CN116858755A CN116858755A CN202211433480.1A CN202211433480A CN116858755A CN 116858755 A CN116858755 A CN 116858755A CN 202211433480 A CN202211433480 A CN 202211433480A CN 116858755 A CN116858755 A CN 116858755A
- Authority
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- China
- Prior art keywords
- sleeve
- metal pipeline
- stray current
- metal
- current corrosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002184 metal Substances 0.000 title claims abstract description 63
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 63
- 230000007797 corrosion Effects 0.000 title claims abstract description 24
- 238000005260 corrosion Methods 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 229910052755 nonmetal Inorganic materials 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 2
- 210000003781 tooth socket Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 101100491335 Caenorhabditis elegans mat-2 gene Proteins 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
- G01N2021/9548—Scanning the interior of a cylinder
Abstract
The invention discloses a stray current corrosion resistance detection device for a metal pipeline along a subway, which comprises: the two external members are provided with through holes matched with the metal pipelines; two circular insulating pads arranged in the through holes; the first sleeve and the second sleeve are arranged on the metal pipeline and can transversely move or rotate relative to the metal pipeline; the plurality of balls are respectively and rotatably arranged on the first sleeve and the second sleeve; the driving device is arranged on the two sleeve members and used for driving the first sleeve and the second sleeve to rotate or transversely move on the metal pipeline at the same time; the control device is used for indirectly controlling the driving device to work; an industrial camera disposed on the second sleeve; and a wireless communication module. According to the invention, the inner wall of the metal pipeline can be photographed while resisting current corrosion, so that the corrosion condition of the inner wall of the metal pipeline can be clearly distinguished, and the effect is good.
Description
Technical Field
The invention relates to the technical field of pipeline detection, in particular to a stray current corrosion resistant detection device for a metal pipeline along a subway.
Background
The subway adopts the direct current traction power supply mode, can produce the influence of stray current between the rail ground, the stray current can produce stronger corrosion action to the metal thing along the line, bring huge security threat to the earth metal along the line especially metal pipeline, so the stray current along the subway line need be restrained urgently, and need to analyze the distribution rule of subway stray current along the subway line, detect after just needing to overcome the stray current along the subway line, the corrosion mechanism of stray current to nearby metal thing is analyzed, in order to guarantee the normal of electric wire netting data, current metal pipeline corrosion detection device easily receives the environmental impact of stray current, corrode check out test set easily for a long time, and detection device can not detect metal pipeline inner wall, the existence is not enough.
Disclosure of Invention
The invention aims to solve the technical problems and provides a stray current corrosion resistant detection device for a metal pipeline along a subway.
The technical scheme of the invention is as follows: a stray current corrosion resistant detection device for a metal pipeline along a subway comprises:
the two external members are provided with through holes matched with the metal pipelines;
two circular insulating pads arranged in the through holes;
the first sleeve and the second sleeve are arranged on the metal pipeline and can transversely move or rotate relative to the metal pipeline;
the plurality of balls are respectively and rotatably arranged on the first sleeve and the second sleeve;
the driving device is arranged on the two sleeve pieces and is used for driving the first sleeve and the second sleeve to rotate or transversely move on the metal pipeline at the same time;
control means for indirectly controlling the operation of the drive means;
an industrial camera disposed on the second sleeve;
and the wireless communication module is used for transmitting the photos shot by the industrial camera.
Preferably, the first sleeve and the second sleeve are sleeves made of nonmetal; the ball is made of nonmetal.
Preferably, the first sleeve is provided with two tooth grooves; the driving device comprises an electric driving device, a telescopic rod, a connecting rod, a screw motor, an electromagnet, an iron block, two gears and a connecting block, wherein the two gears and the connecting block are arranged on the telescopic rod, one end of the telescopic rod can rotate relative to the connecting block, the gears are meshed with the tooth grooves, the electric driving device drives the gears to rotate through the telescopic rod, the screw motor drives the first sleeve to transversely move through the connecting rod, the electromagnet is arranged on the first sleeve, and the iron block is arranged on the second sleeve.
Preferably, the telescopic rod comprises a straight rod and a sleeve, one end of the straight rod is slidably arranged in the sleeve, two sides of one end of the straight rod are provided with outward protruding parts, and a sliding groove matched with the protruding parts is arranged in the sleeve.
Preferably, the electromagnet and the iron block are not in contact with the metal pipe.
Preferably, the control device comprises two pressure sensors, a photosensitive sensor, a plurality of identification pieces, a controller and two time relays, wherein the pressure sensors, the photosensitive sensor and the two time relays are respectively arranged on the external member, and the identification pieces are annularly arranged on the driving device.
Preferably, the insulating pad is in interference fit with the metal pipe.
Preferably, a protective box is arranged on the sleeve.
The beneficial effects of the invention are as follows: according to the invention, the inner wall of the metal pipeline can be photographed while resisting current corrosion, so that the corrosion condition of the inner wall of the metal pipeline can be clearly distinguished, and meanwhile, the crack can be detected, so that the effect is good.
Drawings
FIG. 1 is a top view of the unitary structure of the preferred embodiment of the present invention mated with a metal conduit;
FIG. 2 is a cross-sectional view of a portion of the structure mated with a metal conduit in accordance with a preferred embodiment of the present invention;
FIG. 3 is a schematic illustration of a kit in accordance with a preferred embodiment of the present invention;
FIG. 4 is a cross-sectional view of the preferred embodiment of the invention with the identifier disposed on the telescoping rod;
fig. 5 is a schematic view of a connecting rod in a preferred embodiment of the invention.
Reference numerals: kit 10, through hole 101, support 102, insulating mat 2, first sleeve 3, tooth slot 31, annular groove 32, second sleeve 4, support plate 41, ball 5, industrial camera 6, wireless communication module 7, electric drive 8, telescopic rod 9, straight rod 91, protrusion 911, sleeve 92, chute 921, connecting rod 11, lead screw motor 12, electromagnet 13, iron block 14, gear 15, connecting block 16, pressure sensor 17, photosensitive sensor 18, identification piece 19, controller 20, time relay 21.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 5, a stray current corrosion resistance detection apparatus for a metal pipe along a subway includes:
two external members 10 on which through holes 101 for metal pipes are arranged;
two circular insulating pads 2 disposed in the through hole 101;
the first sleeve 3 and the second sleeve 4 are arranged on the metal pipeline and can transversely move or rotate relative to the metal pipeline;
a plurality of balls 5 rotatably disposed on the first sleeve 3 and the second sleeve 4, respectively;
a driving device arranged on the two sleeve members 10 for driving the first sleeve 3 and the second sleeve 4 to simultaneously rotate or transversely move on the metal pipeline;
control means for indirectly controlling the operation of the driving means 4;
an industrial camera 6 disposed on the second sleeve 4;
and the wireless communication module 7 is used for transmitting the photos shot by the industrial camera 6. In the invention, two suites 10 are fixed on a metal pipeline, a driving device 4 is indirectly controlled by a control device to work, the driving device 4 drives a first sleeve 3 and a second sleeve 4 to rotate or transversely move on the metal pipeline at the same time, an industrial camera 6 rotates or moves along with the second sleeve 4 to photograph the inner wall of the metal pipeline, a wireless communication module 7 transmits pictures to a control unit in a computer host, and a display screen is used for observing the pictures to judge whether the interior of the metal pipeline is corroded. Specifically, when the device is installed, a small long groove is formed in the metal pipeline, and a wire penetrates through the small long groove to be connected with the industrial camera 6; the through hole in the middle of the second sleeve 4 is used for the electric wire in the metal pipeline to pass through; the action of the balls 5 can avoid the contact between the first sleeve 3 and the second sleeve 4 and the metal pipeline, and simultaneously can reduce the friction force of the first sleeve 3 and the second sleeve 4 moving on the metal pipeline; a support plate 41 is provided on one side of the second sleeve 4, and the industrial camera 6 is provided on the support plate 41.
As a preferred embodiment of the invention, it may also have the following additional technical features:
in this embodiment, the first sleeve 3 and the second sleeve 4 are sleeves made of non-metal; the balls 5 are non-metallic balls, so that stray current is prevented from passing through the first sleeve 3 and the second sleeve 4, and corrosion is prevented from being caused to the first sleeve 3 and the second sleeve 4.
In this embodiment, two tooth slots 31 are provided on the first sleeve 3; the driving device comprises an electric driving device 8, a telescopic rod 9, a connecting rod 11, a screw motor 12, an electromagnet 13, an iron block 14, two gears 15 and a connecting block 16, wherein the two gears 15 and the connecting block 16 are arranged on the telescopic rod 9, one end of the telescopic rod 9 can rotate relative to the connecting block 16, the gears 15 are meshed with tooth grooves 31, the electric driving device 8 drives the gears 15 to rotate through the telescopic rod 9, the screw motor 12 drives the first sleeve 3 to transversely move through the connecting rod 11, the electromagnet 13 is arranged on the first sleeve 3, and the iron block 14 is arranged on the second sleeve 4. Specifically, the outer wall of the first sleeve 3 is provided with a T-shaped annular groove 32, the bottom of the connecting rod 11 and the bottom of the connecting block 16 are matched with the annular groove 31, the top end of the connecting rod 11 is in sliding connection with a screw rod of the screw rod motor 12, the screw rod motor 12 works to drive the connecting rod 11 to move so as to drive the first sleeve 3 to move, the electromagnet 13 attracts the iron block 14 so as to drive the electromagnet 13 and the iron block 14 to move, the electric driving device 8 drives the telescopic rod 93 to rotate so as to drive the gear 15 to rotate so as to drive the first sleeve 3 to rotate, and the electromagnet 13 to rotate so as to drive the second sleeve 4 to rotate; the electric drive 8 is a servomotor.
In this embodiment, the telescopic rod 9 includes a straight rod 91 and a sleeve 92, one end of the straight rod 91 is slidably disposed in the sleeve 92, two sides of one end of the straight rod 91 are provided with outward protruding portions 911, a sliding groove 921 adapted to the protruding portions 911 is disposed in the sleeve 92, and the protruding portions 911 and the sliding groove 921 are matched to prevent the straight rod 91 from rotating relative to the sleeve 92. Specifically, the gear 15 is disposed on the straight bar 91; the straight rod 91 can rotate relative to the connecting block 16; the number of sleeves 92 is dependent on the length of metal tubing detected.
In this embodiment, the electromagnet 13 and the iron block 14 are not in contact with the metal pipe. Avoiding friction force and damage to the electromagnet 13 and the iron block 14.
In this embodiment, the control device comprises two pressure sensors 17, a photosensitive sensor 18, a plurality of identification pieces 19, a controller 20 and two time relays 21, wherein the pressure sensors 17, the photosensitive sensor 18 and the two time relays 21 are respectively arranged on the external member 10, the plurality of identification pieces 19 are annularly arranged on the driving device, when the first time relay 21 reaches a preset value, a signal is sent to the controller 20, the controller 20 controls the screw motor 12 and the second time relay 21 to work, the screw motor 12 drives the first sleeve 3 to move leftwards, the second sleeve 4 moves leftwards, the industrial camera 6 photographs the inner wall of the metal pipeline and sends out a photograph through the wireless communication module 7, when the left side of the first sleeve 3 touches the left pressure sensor 17, the pressure sensor 17 sends a signal to the controller 20, the controller 20 controls the electric driving device 8 to work so as to drive the first sleeve 3 to rotate, when the photosensitive sensor 18 detects the identification piece 19, a signal is sent to the controller 20, the controller 20 controls the screw motor 12 to work to drive the first sleeve 3 to move rightwards, the industrial camera 6 moves rightwards to take a picture of the inner wall of the metal pipeline and take the picture out, when the right side of the first sleeve 3 touches the right pressure sensor 17, the pressure sensor 17 sends a signal to the controller 20, the controller 20 controls the electric driving device 8 to work so as to drive the first sleeve 3 to rotate, when the photosensitive sensor 18 detects the identification piece 19, a signal is sent to the controller 20, the controller 20 controls the screw motor 12 to work to drive the first sleeve 3 to move leftwards, the operation is repeated, the distance moved by the industrial camera 6 in the metal pipeline is photographed, and the staff judges the corrosion condition of the metal pipeline through the photograph. Specifically, the support 102 is provided on the kit 10, and the pressure sensor 17 and the photosensitive sensor 18 are provided on the support 102; a plurality of spaced apart identifiers 19 are provided on the sleeve 92.
In this embodiment, the insulating pad 2 is in interference fit with the metal pipe, so as to prevent the sleeve 10 from moving on the metal pipe.
In this embodiment, the external member 10 is provided with a protection box, and the wireless communication module 7, the electric drive device 8, the motor of the screw motor 12 and the time relay 21 are arranged in the protection box, so as to play a role in protection.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a stray current corrosion resistance detection device that metal pipeline used along subway line, its characterized in that includes:
two external members (10) are provided with through holes (101) matched with the metal pipelines;
two circular insulating pads (2) arranged in the through holes (101);
the first sleeve (3) and the second sleeve (4) are arranged on the metal pipeline and can transversely move or rotate relative to the metal pipeline;
a plurality of balls (5) which are respectively and rotatably arranged on the first sleeve (3) and the second sleeve (4);
the driving device is arranged on the two sleeve pieces (10) and is used for driving the first sleeve (3) and the second sleeve (4) to rotate or transversely move on the metal pipeline at the same time;
control means for indirectly controlling the operation of said drive means (4);
an industrial camera (6) arranged on the second sleeve (4);
and the wireless communication module (7) is used for transmitting the photos shot by the industrial camera (6).
2. The stray current corrosion resistant detection apparatus for a metal pipe along a subway line according to claim 1, wherein: the first sleeve (3) and the second sleeve (4) are sleeves made of nonmetal; the ball (5) is made of nonmetal.
3. The stray current corrosion resistant detection apparatus for a metal pipe along a subway line according to claim 1, wherein: two tooth sockets (31) are arranged on the first sleeve (3); the driving device comprises an electric driving device (8), a telescopic rod (9), a connecting rod (11), a screw motor (12), an electromagnet (13), an iron block (14), two gears (15) and a connecting block (16), wherein the gears (15) and the connecting block (16) are arranged on the telescopic rod (9), one end of the telescopic rod (9) can rotate relative to the connecting block (16), the gears (15) are meshed with tooth grooves (31), the electric driving device (8) drives the gears (15) to rotate through the telescopic rod (9), the screw motor (12) drives the first sleeve (3) to transversely move through the connecting rod (11), the electromagnet (13) is arranged on the first sleeve (3), and the iron block (14) is arranged on the second sleeve (4).
4. A stray current corrosion resistant detection apparatus for a metal pipe along a subway line according to claim 3, wherein: the telescopic rod (9) comprises a straight rod (91) and a sleeve (92), one end of the straight rod (91) is slidably arranged in the sleeve (92), two sides of one end of the straight rod (91) are provided with outward protruding portions (911), and a sliding groove (921) matched with the protruding portions (911) is formed in the sleeve (92).
5. A stray current corrosion resistant detection apparatus for a metal pipe along a subway line according to claim 3, wherein: the electromagnet (13) and the iron block (14) are not in contact with the metal pipeline.
6. The stray current corrosion resistant detection apparatus for a metal pipe along a subway line according to claim 1, wherein: the control device comprises two pressure sensors (17), a photosensitive sensor (18), a plurality of identification pieces (19), a controller (20) and two time relays (21), wherein the pressure sensors (17), the photosensitive sensor (18) and the two time relays (21) are respectively arranged on the sleeve member (10), and the identification pieces (19) are annularly arranged on the driving device.
7. The stray current corrosion resistant detection apparatus for a metal pipe along a subway line according to claim 1, wherein: the insulating pad (2) is in interference fit with the metal pipeline.
8. The stray current corrosion resistant detection apparatus for a metal pipe along a subway line according to claim 1, wherein: the external member (10) is provided with a protective box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211433480.1A CN116858755A (en) | 2022-11-16 | 2022-11-16 | Stray current corrosion resistance detection device for metal pipeline along subway line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211433480.1A CN116858755A (en) | 2022-11-16 | 2022-11-16 | Stray current corrosion resistance detection device for metal pipeline along subway line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116858755A true CN116858755A (en) | 2023-10-10 |
Family
ID=88232787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211433480.1A Pending CN116858755A (en) | 2022-11-16 | 2022-11-16 | Stray current corrosion resistance detection device for metal pipeline along subway line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116858755A (en) |
-
2022
- 2022-11-16 CN CN202211433480.1A patent/CN116858755A/en active Pending
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