CN116045127A - Corrosion-resistant cleaning spraying device and method for automatic advancing of inner wall of pipeline - Google Patents
Corrosion-resistant cleaning spraying device and method for automatic advancing of inner wall of pipeline Download PDFInfo
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- CN116045127A CN116045127A CN202310177494.XA CN202310177494A CN116045127A CN 116045127 A CN116045127 A CN 116045127A CN 202310177494 A CN202310177494 A CN 202310177494A CN 116045127 A CN116045127 A CN 116045127A
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- pipeline
- negative pressure
- travelling
- spraying
- wall
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- 238000005507 spraying Methods 0.000 title claims abstract description 100
- 238000005260 corrosion Methods 0.000 title claims abstract description 33
- 238000004140 cleaning Methods 0.000 title claims abstract description 28
- 230000007797 corrosion Effects 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 194
- 239000000428 dust Substances 0.000 claims abstract description 95
- 238000005498 polishing Methods 0.000 claims abstract description 42
- 238000002955 isolation Methods 0.000 claims abstract description 25
- 238000010521 absorption reaction Methods 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 238000000227 grinding Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000005536 corrosion prevention Methods 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 17
- 239000003973 paint Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
- B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/40—Single-purpose machines or devices for grinding tubes internally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
- F16L55/32—Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
- F16L2101/12—Cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
- F16L2101/16—Coating by application of fluent materials, e.g. painting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cleaning In General (AREA)
Abstract
The anti-corrosion cleaning spraying device comprises a negative pressure supporting pipe, wherein a first travelling mechanism, a polishing mechanism, a dust collection mechanism, an isolation mechanism, a second travelling mechanism and a spraying mechanism are sequentially sleeved on the negative pressure supporting pipe, the first travelling mechanism and the second travelling mechanism are used for supporting and driving the negative pressure supporting pipe to travel in a pipeline, the polishing mechanism rotationally polishes the inner wall of the pipeline, the dust collection mechanism rotationally communicates with the negative pressure supporting pipe and collects dust in the inner cavity of the pipeline, the isolation mechanism isolates a polishing dust collection area from a spraying area, and the spraying mechanism carries out anti-corrosion spraying treatment on the inner wall of the pipeline. Through installing first running gear, grinding machanism, dust absorption mechanism, isolation mechanism, second running gear and spraying mechanism on the negative pressure stay tube, make the device can polish, dust absorption clean, the work of spraying anticorrosive coating of pipeline inner wall simultaneously, the spraying again after the pipeline inner wall polishes, the spraying is even, anticorrosive effect is good.
Description
Technical Field
The invention relates to the technical field of corrosion prevention in pipelines, in particular to a corrosion prevention cleaning spraying device and method for automatic running of the inner wall of a pipeline.
Background
In municipal, architectural and hydroelectric engineering, the inner wall of a steel pipe is often required to be subjected to corrosion prevention treatment, and a common treatment mode is to place a pipeline in a paint pool for soaking, or pour paint from one end of the pipeline, then rotate the pipeline to enable the paint to flow out from the other end of the pipeline, and in the rotation of the pipeline, paint is coated on the inner wall of the pipeline. The two methods are characterized by simplicity, and have the defects that rust removal cannot be carried out on the inner wall of a pipeline, rust points are not treated and paint is directly coated, so that the anti-corrosion effect is greatly reduced, in addition, the paint is soaked and poured into the pipeline for rolling, the thickness of a paint film of the paint (anti-corrosion paint) is far greater than the required thickness, the adsorption firmness of the paint is reduced, and the paint is easy to fall off when the pipeline is used.
Chinese patent document CN105944887A, publication/bulletin day 2016.09.21, discloses a device and method for painting inner wall of pipeline, wherein the technical proposal of the patent document is that the inner wall of pipeline is directly painted without polishing and rust removing treatment.
For polishing the inner wall of a pipeline, chinese patent document CN208729460U, publication/bulletin date: 2019.04.12, discloses a rust removing device for stainless steel pipes, wherein the polishing blocks and travelling mechanisms of the rust removing device can be used for adjusting the length according to stainless steel pipes with different specifications, and the rust removing device is wide in application range and simple in adjusting mode. The polishing in the technical scheme of the patent document is performed through a polishing block which is in full length with the steel pipe, and the polishing block cannot be used for polishing and derusting the pits of rust points on the inner wall of the steel pipe.
Disclosure of Invention
The invention aims to solve the technical problems that: solves the problems in the prior art, and provides an anti-corrosion cleaning spraying device capable of automatically advancing the inner wall of a pipeline, which can simultaneously polish the inner wall, clean by dust collection and spray anti-corrosion coating, and spray the inner wall of the pipeline after polishing, so that the spraying is uniform and the anti-corrosion effect is good.
The invention aims to solve the other technical problems that: the method for preventing the pipeline from corrosion by adopting the corrosion prevention cleaning spraying device capable of automatically advancing on the inner wall of the pipeline is provided.
In order to achieve the technical characteristics, the aim of the invention is realized in the following way: the utility model provides an anticorrosive clean spraying device that pipeline inner wall automatic march, includes the negative pressure stay tube, the cover is equipped with first running gear, grinding machanism, dust absorption mechanism, isolation mechanism, second running gear and spraying mechanism on the negative pressure stay tube in proper order, first running gear and second running gear are used for supporting and driving the negative pressure stay tube walks in the pipeline, and the inner wall of pipeline is polished to the grinding machanism rotation, and dust absorption mechanism rotation communicates with the negative pressure stay tube, carries out the dust absorption to the inner chamber of pipeline, and isolation mechanism will polish dust absorption region and spraying region isolation, and spraying mechanism carries out anticorrosive spraying to pipeline inner wall.
The first travelling mechanism and the second travelling mechanism respectively comprise a supporting plate and at least three travelling wheels, the supporting plate is provided with two, two at least three guide grooves are uniformly distributed on the edge between the supporting plates, travelling wheel brackets are radially and slidingly arranged in the guide grooves, the travelling wheels are arranged on the travelling wheel brackets, a supporting ring is arranged on one side of the negative pressure supporting tube, which is positioned on the first travelling mechanism and the second travelling mechanism, each travelling wheel bracket is connected and supported with the supporting ring through a first elastic telescopic rod, and at least one travelling wheel on the first travelling mechanism and/or the second travelling mechanism is a hub motor.
The support ring is arranged on the negative pressure support tube in a rotating and limiting mode, one side of the support ring is fixedly connected with a turbine, the turbine is connected with the negative pressure support tube in a rotating mode, two ends of the worm are connected with the support plate through shaft bases respectively, the worm is connected with the shaft bases in a rotating mode, and the turbine is meshed with the worm in a transmission mode.
The polishing mechanism comprises a rotating seat, the rotating seat is rotatably mounted on a negative pressure supporting tube, at least one hinged seat is fixedly arranged on the outer circumference of the rotating seat, one end of the swinging seat is hinged with the hinged seat through a hinged shaft, a steel wire brush is mounted at the other end of the swinging seat, a supporting seat is arranged on one side of the swinging seat, one end of a second elastic telescopic rod is hinged with the swinging seat, the other end of the second elastic telescopic rod is hinged with the supporting seat, a first gear is arranged on one side of the rotating seat, the first gear is rotatably mounted on the negative pressure supporting tube and fixedly connected with the rotating seat, a driver for driving the rotating seat to rotate is fixedly mounted on the negative pressure supporting tube, a second gear is mounted on an output shaft of the driver, and the second gear is meshed with the first gear for transmission.
The steel wire brush is a steel wire roller, the steel wire roller is rotatably arranged on the swinging seat through a central shaft, one end of the central shaft extends out of the swinging seat, and the steel wire roller rotates through the transmission of the planetary mechanism.
The planetary mechanism comprises a first belt pulley, an intermediate driving wheel and a fixed gear, wherein the first belt pulley is fixedly arranged at one end of a central shaft extending out of a swinging seat, the intermediate driving wheel is rotatably arranged at one end of a hinged shaft extending out of a hinged seat, the fixed gear is fixedly arranged on a negative pressure supporting tube, one side of the intermediate driving wheel is provided with the gear, the other side of the intermediate driving wheel is provided with the belt pulley, the gear of the intermediate driving wheel is meshed with the fixed gear for transmission, and the belt pulley of the intermediate driving wheel is connected with the first belt pulley through a belt for transmission.
The dust collection mechanism comprises a dust collection chamber and a dust collection pipe, the dust collection chamber is rotatably and hermetically arranged on a negative pressure support pipe, a dust collection channel is arranged in the dust collection chamber through the negative pressure support pipe, at least one dust collection pipe is arranged on the outer circumference of the dust collection chamber, the dust collection pipe is communicated with the dust collection chamber, and the dust collection mechanism is connected with a hinge shaft of the polishing mechanism to rotate.
The isolation mechanism comprises a groove-shaped support, the groove-shaped support is fixedly arranged on the negative pressure support pipe, an annular groove is formed in the outer circumference of the groove-shaped support, an annular air bag is arranged in the annular groove, and the annular air bag is inflated and deflated through an inflation nozzle.
The spraying mechanism comprises a material conveying pipeline and a spray head, wherein the material conveying pipeline is arranged in a negative pressure supporting pipe, one end of the material conveying pipeline extends out of the negative pressure supporting pipe, the other end of the material conveying pipeline penetrates through the pipe wall of the negative pressure supporting pipe and extends to the outside of the negative pressure supporting pipe to form a feed inlet, the negative pressure supporting pipe is located at one end of the spraying mechanism for blocking, the spray head comprises a guide pipe and a fan-shaped nozzle, a plurality of guide pipes are radially and uniformly arranged at one end of the material conveying pipeline extending out of the negative pressure supporting pipe, and the fan-shaped nozzle is arranged at the end part of the guide pipe.
The method for preventing the pipeline from corrosion by adopting the automatic-travelling corrosion-preventing cleaning spraying device for the inner wall of the pipeline comprises the following steps,
s1, connecting a joint end of a negative pressure supporting tube with a vacuumizing device through a pipeline, connecting a feed port of a feed pipeline of a spraying mechanism with an airless spraying machine through a pipeline, connecting hub motors on a first travelling mechanism and/or a second travelling mechanism with a power supply through wires, connecting a driver with the power supply through wires, and controlling the driver through a switch respectively;
s2, adjusting the first travelling mechanism, the second travelling mechanism and the isolation mechanism according to the pipeline to be subjected to corrosion-resistant treatment;
s21, inflating the annular air bag through an inflation nozzle, so that the outer circumference of the annular air bag is slightly larger than the inner diameter of the pipeline;
s22, rotating and adjusting worms of the first travelling mechanism and the second travelling mechanism, and enabling the travelling wheel brackets to extend outwards, so that a circle formed by surrounding each travelling wheel is larger than the inner diameter of the pipeline;
s3, placing the spraying device into a pipeline to be subjected to corrosion prevention treatment, wherein one end of the spraying mechanism firstly enters the pipeline;
s4, switching on a power supply of a hub motor on the first travelling mechanism and/or the second travelling mechanism, and enabling the spraying device to travel to the other end of the pipeline in the pipeline; or, switching on the power supply of the hub motor and the driver, and polishing the pipeline by a polishing mechanism when the spraying device walks to the other end in the pipeline;
s5, stopping advancing after the spraying device walks to the other end of the pipeline, at the moment, starting the vacuumizing device to provide negative pressure for the negative pressure supporting pipe, starting the dust suction mechanism, starting the airless spraying machine, and starting the spraying mechanism to spray an anti-corrosion coating on the inner wall of the pipeline;
s6, reversely starting a hub motor on the first travelling mechanism and/or the second travelling mechanism, enabling the spraying device to start to travel backwards, at the moment, driving the rotating seat to rotate by the driver, enabling the steel wire roller to revolve around the negative pressure supporting tube by the rotating seat, enabling the steel wire roller to rotate at a high speed under the driving of the planetary mechanism, and enabling the dust collection mechanism to rotate under the driving of the polishing mechanism to absorb and clean polished sundries and dust;
and S7, the spraying device simultaneously performs polishing, dust collection and cleaning, and spraying an anti-corrosion coating until the whole section of pipeline is sprayed.
The invention has the following beneficial effects:
1. the first travelling mechanism and the second travelling mechanism are used for supporting and driving the negative pressure supporting tube to walk in the pipeline, the polishing mechanism rotates to polish the inner wall of the pipeline, the dust suction mechanism rotates to be communicated with the negative pressure supporting tube and is used for sucking dust in the inner cavity of the pipeline, the isolation mechanism isolates a polishing dust suction area from a spraying area, and the spraying mechanism performs anti-corrosion spraying treatment on the inner wall of the pipeline. The negative pressure stay tube not only is used for supporting and connecting each mechanism, but also is used for installing a material conveying pipeline of the spraying mechanism and providing a negative pressure channel for the dust collection mechanism, and by installing a first travelling mechanism, a polishing mechanism, the dust collection mechanism, an isolation mechanism, a second travelling mechanism and the spraying mechanism on the negative pressure stay tube, the device can polish, dust collection and cleaning and spray an anti-corrosion coating on the inner wall of the pipeline at the same time, and the inner wall of the pipeline is sprayed after being polished, so that the spraying is uniform and the anti-corrosion effect is good.
2. The travelling wheel support is connected and supported with the support ring through the first elastic telescopic rod, so that the travelling wheel is elastically abutted against the inner wall of the pipeline, the friction force between the travelling wheel and the inner wall of the pipeline is increased, and meanwhile, the travelling wheel support can be compatible with pipelines of similar sizes. Through setting up turbine and worm, just can rotate the turbine through the worm, the turbine drives the supporting ring and rotates to be that first elastic telescopic link takes place to twist reverse, when the supporting ring anticlockwise rotates, first elastic telescopic link downwardly pulling walking wheel support moves down, and when the supporting ring clockwise rotation, first elastic telescopic link upwards promotes walking wheel support and moves up, thereby makes the device can adapt to bigger pipeline scope, and the range of application is wider.
3. The second elastic telescopic rod elastically supports the swinging seat, so that the steel wire brush elastically contacts with the inner wall of the pipeline, the rust removing effect is better, and rust pits on the inner wall of the pipeline can be polished.
4. Through setting up planetary mechanism to make the wire brush when revolving around the negative pressure stay tube and polish rust cleaning, can also carry out the rotation and polish rust cleaning, rust cleaning efficiency is higher, and the polishing effect is better.
The negative pressure stay tube is equipped with the dust absorption passageway in being located the dust absorption room to make the dust absorption pipe have negative pressure air, just can adsorb clean up to the granule debris and the dust of polishing in the pipeline. The dust collection chamber of the dust collection mechanism is connected with the hinge shaft of the polishing mechanism to rotate, so that the hinge shaft drives the dust collection mechanism to rotate when rotating around the negative pressure supporting pipe, and the dust collection mechanism can adsorb and clean the inside of a pipeline without dead angles.
5. The annular air bag is inflated and deflated through the inflation nozzle, so that the polishing dust collection area and the spraying area are tightly isolated and sealed, and the isolation mechanism can meet pipelines with different inner diameters and sizes through inflation and deflation, so that the universality is good.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention in a use state.
Fig. 2 is a front view of the first and second travelling mechanisms of the present invention in cross-section.
FIG. 3 is a schematic view of the cross-sectional structure A-A in FIG. 1.
FIG. 4 shows the hidden side of FIG. 3 schematic structural diagram behind the support plate.
FIG. 5 is a schematic view of the cross-sectional structure B-B in FIG. 1.
Fig. 6 is a schematic diagram of a transmission structure of the polishing mechanism and the dust suction mechanism of the present invention.
FIG. 7 is a schematic cross-sectional view of an isolation mechanism according to the present invention.
FIG. 8 is a schematic view of the cross-sectional structure of C-C in FIG. 1.
In the figure: a negative pressure supporting tube 10, a dust collection channel 11 and a joint end 101;
the first travelling mechanism 20, the second travelling mechanism 30, the supporting plate 31, the guide groove 32, the travelling wheel bracket 33, the travelling wheel 34, the first elastic telescopic rod 35, the turbine 36 and the worm 37 support ring 38;
a dust suction mechanism 50, a dust suction chamber 51, a dust suction pipe 52,
A spraying mechanism 70, a material pipe 71, a material inlet 711, a flow pipe 73 and a fan nozzle 74;
a conduit 80.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Embodiment one:
referring to fig. 1-8, the anti-corrosion cleaning spraying device for automatically advancing the inner wall of the pipeline comprises a negative pressure supporting pipe 10, a first travelling mechanism 20, a polishing mechanism 40, a dust collection mechanism 50, an isolation mechanism 60, a second travelling mechanism 30 and a spraying mechanism 70 are sequentially sleeved on the negative pressure supporting pipe 10, the first travelling mechanism 20 and the second travelling mechanism 30 are used for supporting and driving the negative pressure supporting pipe 10 to travel in the pipeline 80, the polishing mechanism 40 rotates to polish the inner wall of the pipeline 80, the dust collection mechanism 50 rotates to be communicated with the negative pressure supporting pipe 10, dust is collected in the inner cavity of the pipeline 80, the isolation mechanism 60 isolates a polishing dust collection area from a spraying area, and the spraying mechanism 70 performs anti-corrosion spraying treatment on the inner wall of the pipeline 80. The negative pressure supporting tube 10 is not only used for supporting and connecting all mechanisms, but also used for installing a material conveying pipeline of the spraying mechanism 70 and providing a negative pressure channel for the dust collection mechanism 50, and the device can simultaneously polish, dust collection and cleaning and anticorrosive coating spraying work on the inner wall of the pipeline by installing the first travelling mechanism 20, the polishing mechanism 40, the dust collection mechanism 50, the isolation mechanism 60, the second travelling mechanism 30 and the spraying mechanism 70 on the negative pressure supporting tube 10, so that the inner wall of the pipeline is polished and then sprayed, and the spraying is uniform and the anticorrosive effect is good.
Referring to fig. 1-3, the first travelling mechanism 20 and the second travelling mechanism 30 respectively comprise a supporting plate 31 and three travelling wheels 34, the supporting plate 31 is provided with two, three guide grooves 32 are uniformly distributed at the edge between the two supporting plates 31, travelling wheel brackets 33 are radially and slidably arranged in the guide grooves 32, the travelling wheels 34 are arranged on the travelling wheel brackets 33, a supporting ring 38 is arranged on one side of the negative pressure supporting tube 10, which is positioned on the first travelling mechanism 20 and the second travelling mechanism 30, each travelling wheel bracket 33 is connected and supported with the supporting ring 38 through a first elastic telescopic rod 35, and at least one travelling wheel 34 on the first travelling mechanism 20 and the second travelling mechanism 30 is a hub motor. Three travelling wheels 34 are respectively arranged on the first travelling mechanism 20 and the second travelling mechanism 30, the three travelling wheels 34 are of an equilateral triangle structure, and support the negative pressure support tube 10 and enable the negative pressure support tube 10 to be positioned on the central axis of the pipeline 80. The travelling wheel bracket 33 is connected and supported with the supporting ring 38 through the first elastic telescopic rod 35, so that the travelling wheel 34 is elastically abutted against the inner wall of the pipeline 80, the friction force between the travelling wheel 34 and the inner wall of the pipeline is increased, and meanwhile, the travelling wheel bracket can be compatible with pipelines with similar sizes.
Preferably, the first resilient telescopic rod 35 is an air telescopic rod, or a spring telescopic rod as shown in fig. 4.
Further, the support ring 38 is rotatably and limitedly mounted on the negative pressure support tube 10, one side of the support ring 38 is fixedly connected with the turbine 36, the turbine 36 is rotatably connected with the negative pressure support tube 10, two ends of the worm 37 are respectively connected with the support plate 31 through shaft seats, the worm 37 is rotatably connected with the shaft seats, and the turbine 36 is meshed with the worm 37 for transmission. Through setting up turbine and worm, just can rotate the turbine through worm 37, turbine drive support ring 38 rotates to it twists reverse to be that first elastic expansion link 35 takes place, as shown in fig. 4, when support ring 38 anticlockwise rotates, first elastic expansion link 35 downwardly pulling walking wheel support 33 moves down, and when support ring 38 clockwise rotates, first elastic expansion link 35 upwards promotes walking wheel support 33 and moves up, thereby makes the device can adapt to bigger pipeline scope, and the range of application is wider. And the supporting ring 38 can increase the friction force between the travelling wheel 34 and the inner wall of the pipeline when rotating clockwise, so that the anti-corrosion cleaning spraying device is suitable for the longer pipeline.
Referring to fig. 1 and 5, the polishing mechanism 40 includes a rotary base 42, the rotary base 42 is rotatably mounted on the negative pressure support tube 10, three hinge bases 44 are fixedly mounted on the outer circumference of the rotary base 42, one end of a swinging base 45 is hinged to the hinge bases 44 through a hinge shaft 441, a steel wire brush 46 is mounted at the other end of the swinging base 42, a support base 47 is disposed at one side of the hinge bases 44, one end of a second elastic telescopic rod 48 is hinged to the swinging base 45, the other end of the second elastic telescopic rod is hinged to the support base 47, a first gear 43 is disposed at one side of the rotary base 42, the first gear 43 is rotatably mounted on the negative pressure support tube 10 and fixedly connected with the rotary base 42, a second gear 411 is mounted on an output shaft of the driver 41, and the second gear 411 is meshed with the first gear 43. The rotary seat 42 is driven to rotate by the drive of the driver 41, so that the steel wire brush 46 at the outer end of the swinging seat 45 is driven to rotate, and the inner wall of the pipeline 80 is rotationally polished and derusted, so that the derusting efficiency is high. The second elastic telescopic rod 48 elastically supports the swinging seat 45, so that the steel wire brush 46 elastically contacts with the inner wall of the pipeline 80, the rust removing effect is better, and rust pits on the inner wall of the pipeline can be polished. The driver 41 may employ a motor reducer or a stepping motor or a servo motor.
Further, referring to fig. 5 and 6, the wire brush 46 is a wire roller, the wire roller is rotatably mounted on the swing seat 45 through a central shaft 461, one end of the central shaft 461 extends out of the swing seat 45, and the wire roller is rotated by transmission of the planetary mechanism 49. By arranging the planetary mechanism 49, the wire brush 46 can perform rotation grinding and rust removal while revolving around the negative pressure supporting tube 10 for grinding and rust removal, so that the rust removal efficiency is higher and the grinding effect is better.
Specifically, the planetary mechanism 49 includes a first pulley 491, an intermediate driving wheel 492 and a fixed gear 493, the first pulley 491 is fixedly mounted at one end of the central shaft 461 extending out of the swinging seat 45, the intermediate driving wheel 492 is rotatably mounted at one end of the hinge shaft 441 extending out of the hinge seat 44, the fixed gear 493 is fixedly mounted on the negative pressure support tube 10, one side of the intermediate driving wheel 492 is a gear, the other side is a pulley, the gear of the intermediate driving wheel 492 is meshed with the fixed gear 493 for transmission, and the pulley of the intermediate driving wheel 492 is connected with the first pulley 491 for transmission through a belt. Preferably, the belt may be an O-belt, or a v-belt, or a timing belt, although the pulleys need to be correspondingly matched.
The planetary mechanism 49 may be a gear transmission structure other than the belt structure described above.
Referring to fig. 1 and 6, the dust collection mechanism 50 comprises a dust collection chamber 51 and dust collection pipes 52, the dust collection chamber 51 is rotatably and hermetically arranged on a negative pressure support pipe 10, the negative pressure support pipe 10 is provided with a dust collection channel 11 in the dust collection chamber 51, two or three dust collection pipes 52 are uniformly and circularly arranged on the outer circumference of the dust collection chamber 51, the dust collection pipes 52 are communicated with the dust collection chamber 51, and the dust collection mechanism 50 is connected and rotated with a hinge shaft 441 of the polishing mechanism 40. The negative pressure support pipe 10 is provided with a dust collection channel 11 in the dust collection chamber 51, so that the dust collection pipe 52 is provided with negative pressure air, and the dust and the particle impurities polished in the pipeline 80 can be adsorbed and cleaned. Referring to fig. 6, the suction chamber 51 of the suction mechanism 50 is connected to the hinge shaft 441 of the grinding mechanism 40 to rotate, so that the hinge shaft 441 drives the suction mechanism 50 to rotate while rotating around the negative pressure support tube 10, thereby enabling the suction mechanism 50 to perform suction cleaning on the inside of the pipe 80 without dead angles. Further, a brush may be attached to the front end of the dust suction pipe 52, and the duct 80 may be cleaned and sucked by the brush.
Referring to fig. 1 and 7, the isolation mechanism 60 includes a groove-shaped bracket 61, the groove-shaped bracket 61 is fixedly installed on the negative pressure support tube 10, an annular groove 62 is formed in the outer circumference of the groove-shaped bracket 61, an annular air bag 63 is installed in the annular groove 62, and the annular air bag 63 is inflated and deflated through an inflation nozzle 631. By providing the isolation structure 60, the polishing dust collection area is isolated from the spraying area, so that the particles and impurities polished by the polishing mechanism 40 are prevented from splashing to the spraying area, and the spraying quality is prevented from being influenced. The annular air bag 63 is inflated and deflated through the inflation nozzle 631, so that a polishing dust collection area and a spraying area are tightly isolated and sealed, pipelines with different inner diameters can be met by the isolation mechanism 60 through inflation and deflation, and the universality is good.
The isolation mechanism 60 may be configured as a circular diaphragm instead of a balloon, but may require a different diameter diaphragm to be replaced when processing a different diameter pipe.
Referring to the bodies 1 and 8, the spraying mechanism 70 comprises a material conveying pipeline 71 and a spray head, the material conveying pipeline 71 is arranged in the negative pressure supporting pipe 10, one end of the material conveying pipeline 71 extends out of the negative pressure supporting pipe 10, the other end of the material conveying pipeline passes through the pipe wall of the negative pressure supporting pipe 10 and extends to the outside of the negative pressure supporting pipe 10 to form a feed port 711, the negative pressure supporting pipe 10 is plugged at one end of the spraying mechanism 70, the spray head comprises a flow guide pipe 73 and fan-shaped nozzles 74,6, the flow guide pipe 73 is radially and uniformly arranged at one end of the material conveying pipeline 71 extending out of the negative pressure supporting pipe 10, and the fan-shaped nozzles 74 are arranged at the end parts of the flow guide pipe 73. Through the plurality of fan nozzles 74, the inner wall of the pipeline 80 can be sprayed, so that the spraying efficiency is high and the effect is good. The feed port 711 is used to communicate with airless sprayer.
Embodiment two:
a method for carrying out pipeline corrosion prevention by adopting the corrosion prevention cleaning spraying device capable of automatically advancing the inner wall of a pipeline comprises the following steps:
s1, connecting a joint end 101 of a negative pressure supporting tube 10 with a vacuumizing device through a pipeline, connecting a feed port 711 of a feed pipeline 71 of a spraying mechanism 70 with an airless spraying machine through a pipeline, connecting hub motors on a first travelling mechanism 20 and/or a second travelling mechanism 30 with a power supply through wires, connecting a driver 41 with the power supply through wires, and controlling the driver through a switch respectively.
S2, adjusting the first running mechanism 20, the second running mechanism 30 and the isolation mechanism 60 according to the pipeline 80 to be subjected to corrosion protection treatment.
S21, inflating the annular air bag 63 through an inflating nozzle 631, so that the outer circumference of the annular air bag 63 is slightly larger than the inner diameter of the pipeline 80;
s22, the worm 37 of the first travelling mechanism 20 and the worm 37 of the second travelling mechanism 30 are adjusted in a rotating mode, the travelling wheel support 33 extends outwards, and the circle formed by surrounding each travelling wheel 34 is larger than the inner diameter of the pipeline 80.
S3, placing the spraying device into a pipeline 80 to be subjected to corrosion prevention treatment, wherein one end of the spraying mechanism 70 firstly enters the pipeline 80.
S4, switching on a power supply of a hub motor on the first travelling mechanism 20 and/or the second travelling mechanism 30, and enabling the spraying device to travel to the other end of the pipeline 80 in the pipeline; alternatively, the power supply of the in-wheel motor and the driver 41 is turned on, and the pipe 80 is polished by the polishing mechanism 40 once while the painting device walks to the other end in the pipe 80.
S5, when the spraying device walks to the other end of the pipeline 80 and then stops advancing, at the moment, the vacuumizing device is started to provide negative pressure for the negative pressure supporting pipe 10, the dust suction mechanism 50 starts to suck dust, the airless spraying machine is started, and the spraying mechanism 70 starts to spray an anti-corrosion coating on the inner wall of the pipeline.
S6, reversely starting a hub motor on the first travelling mechanism 20 and/or the second travelling mechanism 30, and starting the spraying device to travel backwards, wherein at the moment, the driver 41 drives the rotating seat 42 to rotate, the rotating seat 42 drives the steel wire roller to revolve around the negative pressure supporting tube 10, the steel wire roller rotates at a high speed under the drive of the planetary mechanism 49, and meanwhile, the dust collection mechanism 50 is driven by the polishing mechanism 40 to rotate to absorb and clean polished sundries and dust; at this time, the worker assists in pulling the vacuum pipe, the pipe for transporting the paint, and the wire outward.
S7, the spraying device simultaneously performs polishing, dust collection and cleaning and spraying of the anti-corrosion coating until the whole section of pipeline 80 is sprayed.
Claims (10)
1. Anticorrosive clean spraying device that pipeline inner wall is automatic to advance, its characterized in that: including negative pressure stay tube (10), first running gear (20), grinding machanism (40), dust absorption mechanism (50), isolation mechanism (60), second running gear (30) and spraying mechanism (70) are equipped with to the cover in proper order on negative pressure stay tube (10), first running gear (20) and second running gear (30) are used for supporting and driving negative pressure stay tube (10) walk in pipeline (80), the inner wall of pipeline (80) that grinding machanism (40) was rotatory polishes, dust absorption mechanism (50) rotatory and negative pressure stay tube (10) intercommunication, and the inner chamber of pipeline (80) carries out the dust absorption, and isolation mechanism (60) will polish dust absorption region and spray coating region keep apart, and spray coating mechanism (70) carry out anticorrosive spraying treatment to pipeline (80) inner wall.
2. The automatic advancing corrosion-resistant cleaning spraying device for the inner wall of a pipeline according to claim 1, wherein: the first travelling mechanism (20) and the second travelling mechanism (30) respectively comprise a supporting plate (31) and at least three travelling wheels (34), the supporting plate (31) is provided with two, two at least three guide grooves (32) are uniformly distributed at the edge between the supporting plates (31), travelling wheel brackets (33) are radially and slidingly arranged in the guide grooves (32), the travelling wheels (34) are arranged on the travelling wheel brackets (33), a supporting ring (38) is arranged on one side of the negative pressure supporting tube (10) located on the first travelling mechanism (20) and the second travelling mechanism (30), each travelling wheel bracket (33) is connected with the supporting ring (38) through a first elastic telescopic rod (35), and at least one travelling wheel (34) on the first travelling mechanism (20) and/or the second travelling mechanism (30) is a hub motor.
3. The automatic advancing corrosion-resistant cleaning spraying device for the inner wall of a pipeline according to claim 2, wherein: the support ring (38) is rotatably and limitedly arranged on the negative pressure support tube (10), one side of the support ring (38) is fixedly connected with a turbine (36), the turbine (36) is rotatably connected with the negative pressure support tube (10), two ends of a worm (37) are respectively connected with the support plate (31) through shaft seats, the worm (37) is rotatably connected with the shaft seats, and the turbine (36) is meshed with the worm (37) for transmission.
4. The automatic advancing corrosion-resistant cleaning spraying device for the inner wall of a pipeline according to claim 1, wherein: the polishing mechanism (40) comprises a rotating seat (42), the rotating seat (42) is rotatably mounted on a negative pressure supporting tube (10), at least one hinged seat (44) is fixedly arranged on the outer circumference of the rotating seat (42), one end of a swinging seat (45) is hinged with the hinged seat (44) through a hinged shaft (441), a steel wire brush (46) is mounted at the other end of the swinging seat, a supporting seat (47) is arranged on one side of the hinged seat (44), one end of a second elastic telescopic rod (48) is hinged with the swinging seat (45), the other end of the second elastic telescopic rod is hinged with the supporting seat (47), a first gear (43) is arranged on one side of the rotating seat (42), the first gear (43) is rotatably mounted on the negative pressure supporting tube (10) and fixedly connected with the rotating seat (42), a second gear (411) is mounted on an output shaft of the driver (41), and the second gear (411) is meshed with the first gear (43).
5. The automatic advancing corrosion-resistant cleaning spraying device for the inner wall of a pipeline according to claim 4, wherein: the steel wire brush (46) is a steel wire roller, the steel wire roller is rotatably arranged on the swinging seat (45) through a central shaft (461), one end of the central shaft (461) extends out of the swinging seat (45), and the steel wire roller is driven to rotate through a planetary mechanism (49).
6. The automatic advancing corrosion-resistant cleaning spraying device for the inner wall of a pipeline according to claim 5, wherein: the planetary mechanism (49) comprises a first belt pulley (491), an intermediate driving wheel (492) and a fixed gear (493), wherein the first belt pulley (491) is fixedly arranged at one end of a central shaft (461) extending out of a swinging seat (45), the intermediate driving wheel (492) is rotatably arranged at one end of a hinge shaft (441) extending out of a hinge seat (44), the fixed gear (493) is fixedly arranged on a negative pressure supporting tube (10), one side of the intermediate driving wheel (492) is a gear, the other side of the intermediate driving wheel is a belt pulley, the gear of the intermediate driving wheel (492) is meshed with the fixed gear (493) for transmission, and the belt pulley of the intermediate driving wheel (492) is connected with the first belt pulley (491) through a belt for transmission.
7. The automatic advancing corrosion-resistant cleaning spraying device for the inner wall of a pipeline according to claim 1, wherein: the dust collection mechanism (50) comprises a dust collection chamber (51) and a dust collection pipe (52), the dust collection chamber (51) is rotatably and hermetically arranged on a negative pressure support pipe (10), a dust collection channel (11) is arranged in the dust collection chamber (51) through the negative pressure support pipe (10), at least one dust collection pipe (52) is arranged on the outer circumference of the dust collection chamber (51), the dust collection pipe (52) is communicated with the dust collection chamber (51), and the dust collection mechanism (50) is connected with a hinge shaft (441) of the polishing mechanism (40) to rotate.
8. The automatic advancing corrosion-resistant cleaning spraying device for the inner wall of a pipeline according to claim 1, wherein: the isolation mechanism (60) comprises a groove-shaped support (61), the groove-shaped support (61) is fixedly arranged on the negative pressure support tube (10), an annular groove (62) is formed in the outer circumference of the groove-shaped support (61), an annular air bag (63) is arranged in the annular groove (62), and the annular air bag (63) is inflated and deflated through an inflation nozzle (631).
9. The automatic advancing corrosion-resistant cleaning spraying device for the inner wall of a pipeline according to claim 1, wherein: the spraying mechanism (70) comprises a material conveying pipeline (71) and a spray nozzle, the material conveying pipeline (71) is arranged in the negative pressure supporting pipe (10), one end of the material conveying pipeline (71) extends out of the negative pressure supporting pipe (10), the other end of the material conveying pipeline (71) penetrates through the pipe wall of the negative pressure supporting pipe (10) to extend out of the negative pressure supporting pipe (10) to form a feeding hole (711), the negative pressure supporting pipe (10) is located at one end of the spraying mechanism (70) to be plugged, the spray nozzle comprises a flow guide pipe (73) and a fan-shaped nozzle (74), a plurality of flow guide pipes (73) are radially and uniformly arranged at one end, extending out of the negative pressure supporting pipe (10), of the material conveying pipeline (71), of the fan-shaped nozzle (74) is arranged at the end part of the flow guide pipe (73).
10. A method for pipeline corrosion prevention by adopting the corrosion prevention cleaning spraying device for automatically advancing the inner wall of the pipeline according to any one of claims 1 to 9, which is characterized by comprising the following steps,
s1, connecting a joint end (101) of a negative pressure supporting tube (10) with a vacuumizing device through a pipeline, connecting a feed inlet (711) of a feed conveying pipeline (71) of a spraying mechanism (70) with an airless spraying machine through a pipeline, connecting hub motors on a first travelling mechanism (20) and/or a second travelling mechanism (30) with a power supply through wires, connecting a driver (41) with the power supply through wires, and controlling the drivers through switches respectively;
s2, adjusting the first travelling mechanism (20) and the second travelling mechanism (30) and the isolation mechanism (60) according to a pipeline (80) to be subjected to corrosion prevention treatment;
s21, inflating the annular air bag (63) through an inflation nozzle (631) to enable the outer circumference of the annular air bag (63) to be slightly larger than the inner diameter of the pipeline (80);
s22, rotating and adjusting worms (37) of the first travelling mechanism (20) and the second travelling mechanism (30), and enabling travelling wheel brackets (33) to extend outwards, so that a circle formed by surrounding each travelling wheel (34) is larger than the inner diameter of a pipeline (80);
s3, placing the spraying device into a pipeline (80) to be subjected to corrosion prevention treatment, wherein one end of the spraying mechanism (70) firstly enters the pipeline (80);
s4, switching on a power supply of a hub motor on the first travelling mechanism (20) and/or the second travelling mechanism (30), and enabling the spraying device to travel to the other end of the pipeline (80) in the pipeline; or, the power supply of the hub motor and the driver (41) is connected, and the spraying device walks in the pipeline (80) to the other end and simultaneously the polishing mechanism (40) polishes the pipeline (80) once;
s5, stopping advancing after the spraying device walks to the other end of the pipeline (80), at the moment, starting the vacuumizing device to provide negative pressure for the negative pressure supporting pipe (10), starting the dust suction mechanism (50), starting the airless spraying machine, and starting the spraying mechanism (70) to spray an anti-corrosion coating on the inner wall of the pipeline;
s6, reversely starting a hub motor on the first travelling mechanism (20) and/or the second travelling mechanism (30), enabling the spraying device to start to travel backwards, at the moment, driving the rotating seat (42) to rotate by the driver (41), enabling the rotating seat (42) to drive the steel wire roller to revolve around the negative pressure supporting tube (10), enabling the steel wire roller to rotate at a high speed under the driving of the planetary mechanism (49), and enabling the dust collection mechanism (50) to absorb and clean polished sundries and dust under the driving of the polishing mechanism (40);
and S7, the spraying device simultaneously performs polishing, dust collection and cleaning, and spraying an anti-corrosion coating until the whole section of pipeline (80) is sprayed.
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