CN210187523U - Pipeline inner wall circumferential weld joint coating equipment - Google Patents
Pipeline inner wall circumferential weld joint coating equipment Download PDFInfo
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- CN210187523U CN210187523U CN201921102783.9U CN201921102783U CN210187523U CN 210187523 U CN210187523 U CN 210187523U CN 201921102783 U CN201921102783 U CN 201921102783U CN 210187523 U CN210187523 U CN 210187523U
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- trolley
- air bag
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- circumferential weld
- spraying
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Abstract
Pipeline inner wall circumferential weld joint repaired mouth equipment, it relates to the pipeline field of repairing. The pipeline inner wall circumferential weld joint repaired mouth equipment comprises a walking driving mechanism, a sealing air bag, an impeller blasting deruster, a steel shot conveying and recycling trolley, an air supply trolley and a spraying trolley, wherein the right side of the walking driving mechanism is provided with the sealing air bag, the sealing air bag is connected with the impeller blasting deruster, the front side of the steel shot conveying and recycling trolley is provided with the sealing air bag and is fixedly connected with the air supply trolley, and the front side of the air supply trolley is provided with the spraying trolley. After the technical scheme is adopted, the beneficial effects of the utility model are that: the device has reasonable design, combines the devices of derusting, recycling, spraying and the like into a set of complete devices according to enough process sequences in an integrated mode, solves the problem of repairing the inner wall circumferential weld of the small-caliber steel pipe, and has the characteristics of high efficiency, safety, excellent spraying quality and the like.
Description
Technical Field
The utility model relates to a pipeline repair field, concretely relates to wall circumferential weld joint repaired mouth equipment in pipeline.
Background
In order to reduce the frictional resistance in the medium conveying process, the natural gas conveying pipeline is usually coated with a drag reduction coating on the inner wall of a steel pipe, and in order to prevent the corrosion of the inner wall of a liquid pipeline, the inner wall of the steel pipe is usually coated with an anti-corrosion coating. In the field pipeline laying construction, the inner wall of the pipeline welding joint is required to be coated and repaired, the inner space of the large-diameter steel pipe is large, the manual repairing mode can be generally adopted, but the space of the small-diameter steel pipe welding joint is narrow and small, and manual repairing cannot be carried out. Because the repair of the inner coating of the pipe wall at the welding seam is not carried out when the small-diameter pipeline is laid, the local resistance and corrosion are caused by the exposure of the welding seam in the use process of the pipeline, the resistance of a natural gas pipeline conveying medium is increased, the corrosion in a liquid pipeline is serious, and finally the pipeline leaks. This significantly reduces the useful life of the pipeline, causes unpredictable damage and increases the maintenance costs of the pipeline.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a pipeline inner wall circumferential weld joint linking equipment, its reasonable in design through integrated mode, will rust cleaning, retrieve equipment such as spraying and make up into one set of complete equipment according to enough technology order, has solved the inner wall circumferential weld linking problem of little pipe diameter steel pipe, has characteristics such as efficient, safe, spraying quality excellence.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the steel shot blasting and recycling device comprises a walking driving mechanism 1, a sealing air bag 2, a shot blasting and derusting machine 3, a steel shot conveying and recycling trolley 4, an air supply trolley 5 and a spraying trolley 6, wherein the sealing air bag 2 is arranged on the front side of the walking driving mechanism 1, the sealing air bag 2 is connected with the shot blasting and derusting machine 3, the sealing air bag 2 is fixed on the right side of the steel shot conveying and recycling trolley 4 and is connected with the air supply trolley 5, and the spraying trolley 6 is arranged on the front side of the air supply trolley.
The walking driving mechanism 1 is a driving power mechanism and an electric control system.
The utility model discloses a theory of operation: after the small-caliber steel pipe is welded on site, rust removal and a spray head (inner repaired mouth) at the circumferential weld of the inner wall are carried out, so that the surface of the inner wall of the whole pipeline is covered with a coating, the friction resistance of the inner wall of the pipeline is reduced, the corrosion of the inner wall of the pipeline is prevented, the service efficiency of the pipeline is improved, the service life of the pipeline is prolonged, and the applicable pipe diameter is as follows: phi 377 to phi 1016. When the pipeline is laid on site for about 0.5km, the whole machine enters the interior of the steel pipe to the first girth weld joint patch at the front end; opening the front and rear sealing air bags at the joint coating position to form a sealed derusting space, and performing derusting operation by using shot blasting equipment; after the joint repairing and rust removing are finished, the sealing air bag is closed, the steel shot conveying and recycling trolley recycles steel shot after rust removing and cleans dust on the surface of the steel pipe, at the moment, the whole machine moves backwards until the spraying trolley reaches the first circumferential weld joint repairing position, and a medium-frequency heating system outside the steel pipe is placed at the circumferential weld joint of the pipeline for heating; after heating, starting the spraying trolley to spray the coating, and finishing the coating operation at the first repaired mouth; and then the whole machine is retreated to a second repaired mouth, and the operation is carried out until the repaired mouth at the inner ring welding seam of the section of pipeline is completed.
After the technical scheme is adopted, the utility model discloses beneficial effect does: 1. the trolleys with corresponding functions are combined according to the process sequence to form a whole, so that the repairing work of pipelines with specific pipe diameters can be adapted; 2. and (3) performing shot blasting and rust removal on the circumferential weld by adopting a self-made polishing head, wherein the cleanliness of the inner surface of the steel pipe after rust removal reaches Sa2.5 grade. In general, the device is reasonable in design, equipment for derusting, recycling, spraying and the like is combined into a set of complete equipment according to the enough process sequence in an integrated mode, the problem of repairing the inner wall circumferential weld of the small-caliber steel pipe is solved, and the device has the characteristics of high efficiency, safety, high spraying quality and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a process flow diagram of the present invention.
Description of reference numerals: the device comprises a walking driving mechanism 1, a sealing air bag 2, a shot blasting rust remover 3, a steel shot conveying and recycling trolley 4, an air supply trolley 5 and a spraying trolley 6.
Detailed Description
Referring to fig. 1 to 2, the technical solution adopted by the present embodiment is: the steel tube shot blasting and recycling device comprises a walking driving mechanism 1, an air bag 2, a shot blasting and derusting machine 3, a steel shot conveying and recycling trolley 4, an air supply trolley 5 and a spraying trolley 6, wherein the walking driving mechanism 1 is installed at the rear side of the air bag 2, the walking driving mechanism 1 is composed of a walking chassis provided with a speed reducing motor and an electric control cabinet, a walking vehicle body main body is welded by adopting plates, a steel wheel shaft is fixed through a special bearing seat and is provided with a polyurethane wheel, abrasion to the inner wall of a steel tube during walking is avoided, and the speed reducing motor can adjust the walking speed through frequency conversion control and is. The sealing air bag 2 is inflated by the annular air bag to establish a closed working space for the shot blasting rust removal area, so that steel shots are prevented from splashing to a non-working area, and the annular air bag is deflated after shot blasting rust removal is finished. The front side and the rear side of the sealed air bag 2 are provided with the shot blasting rust remover 3, the shot blasting rust remover 3 carries out surface rust removal work on a welding seam through the shot blasting machine and mainly comprises the shot blasting machine, a hollow shaft motor, a driving walking chassis and the like, the driving walking chassis is provided with the hollow shaft motor which is directly connected with the shot blasting machine and drives the shot blasting machine to rotate at a high speed, steel shots are thrown out, the periphery of the circumferential welding seam of the steel pipe is subjected to rust removal treatment, and the rust removal grade of Sa2.5 can be met. The front side of the shot blasting rust remover 3 is provided with a steel shot conveying and recycling trolley 4, shot feeding of the shot blasting machine is provided by the steel shot conveying and recycling trolley 4, the steel shot conveying and recycling trolley 4 is used for pushing material shots to the shot blasting machine through a spiral conveying mechanism, a hollow shaft is used by an integral trolley cable threading pipe and a linear bearing of the shot blasting machine, a driving walking chassis controls shot blasting stroke, and a shot blasting head slides on the linear bearing. The steel shot conveying and recycling trolley 4 is used for recycling steel shot subjected to rust removal and cleaning dust on the surface of a steel pipe, the mechanism comprises a recycling head, a recycling bin body, a recycling fan, a spiral conveying mechanism, a passive walking chassis and the like, the recycling bin body is welded by steel plates and is installed on a car body, the recycling head is installed on the heads of the two sides of the recycling bin body through pipelines, cleaning brushes are installed on the heads of the two sides of the recycling bin body, and the steel shot gathered to the bottom of the steel pipe is cleaned to the rear portion of the bin body to be recycled through. The recovery fan is arranged at the top of the bin body and provides power for collecting steel shot, the spiral conveying mechanism is driven by the motor and is responsible for conveying the steel shot in the recovery bin to the throwing head, and the power of the spiral conveying mechanism is introduced from the threading pipe through a cable. The air supply trolley 5 is arranged at the left side of the spraying trolley 6, the air supply trolley 5 provides qualified compressed air for the powder spraying system through an air compressor and a freezing type dryer, and the mechanism consists of a passive walking chassis, an air compressor and a dryer. The spraying trolley 6 sprays the weld joint of the steel pipe after rust removal through an electrostatic spray gun system to finish the repair work of the anticorrosive coating, and the spraying trolley 6 consists of a passive walking chassis, a powder box, a fluidized bed, an electrostatic spray gun and a control system.
The walking driving mechanism 1 forms a driving power and electric control system of the whole equipment, and an industrial endoscope is arranged in the equipment, so that the construction condition can be observed in real time.
The utility model discloses a theory of operation: after the small-caliber steel pipe is welded on site, rust removal and a spray head (inner repaired mouth) at the circumferential weld of the inner wall are carried out, so that the surface of the inner wall of the whole pipeline is covered with a coating, the friction resistance of the inner wall of the pipeline is reduced, the corrosion of the inner wall of the pipeline is prevented, the service efficiency of the pipeline is improved, the service life of the pipeline is prolonged, and the applicable pipe diameter is as follows: phi 377 to phi 1016. When the pipeline is laid on site for about 0.5km, the whole machine enters the interior of the steel pipe to the first girth weld joint patch at the front end; opening the front and rear sealing air bags at the joint coating position to form a sealed derusting space, and performing derusting operation by using shot blasting equipment; after the joint repairing and rust removing are finished, the sealing air bag is closed, the steel shot conveying and recycling trolley recycles steel shot after rust removing and cleans dust on the surface of the steel pipe, at the moment, the whole machine moves backwards until the spraying trolley reaches the first circumferential weld joint repairing position, and a medium-frequency heating system outside the steel pipe is placed at the circumferential weld joint of the pipeline for heating; after heating, starting the spraying trolley to spray the coating, and finishing the coating operation at the first repaired mouth; and then the whole machine is retreated to a second repaired mouth, and the operation is carried out until the repaired mouth at the inner ring welding seam of the section of pipeline is completed.
After the technical scheme is adopted, the utility model discloses beneficial effect does: 1. the trolleys with corresponding functions are combined according to the process sequence to form a whole, so that the repairing work of pipelines with specific pipe diameters can be adapted; 2. and (3) performing shot blasting and rust removal on the circumferential weld by adopting a self-made polishing head, wherein the cleanliness of the inner surface of the steel pipe after rust removal reaches Sa2.5 grade. In general, the device is reasonable in design, equipment for derusting, recycling, spraying and the like is combined into a set of complete equipment according to the enough process sequence in an integrated mode, the problem of repairing the inner wall circumferential weld of the small-caliber steel pipe is solved, and the device has the characteristics of high efficiency, safety, high spraying quality and the like.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (2)
1. Pipeline inner wall circumferential weld joint repaired mouth equipment, its characterized in that: the shot blasting and recycling device comprises a walking driving mechanism (1), a sealing air bag (2), a shot blasting and derusting machine (3), a steel shot conveying and recycling trolley (4), an air supply trolley (5) and a spraying trolley (6), wherein the sealing air bag (2) is arranged on the front side of the walking driving mechanism (1), the sealing air bag (2) is connected with the shot blasting and derusting machine (3), the sealing air bag (2) is fixed on the front side of the steel shot conveying and recycling trolley (4) and is connected with the air supply trolley (5), and the spraying trolley (6) is arranged on the front side of the air supply trolley (5).
2. The pipe inner wall circumferential weld joint coating equipment according to claim 1, characterized in that: the walking driving mechanism (1) is a driving power mechanism and an electric control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921102783.9U CN210187523U (en) | 2019-07-15 | 2019-07-15 | Pipeline inner wall circumferential weld joint coating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921102783.9U CN210187523U (en) | 2019-07-15 | 2019-07-15 | Pipeline inner wall circumferential weld joint coating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210187523U true CN210187523U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921102783.9U Active CN210187523U (en) | 2019-07-15 | 2019-07-15 | Pipeline inner wall circumferential weld joint coating equipment |
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| Country | Link |
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| CN (1) | CN210187523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227625A (en) * | 2019-07-15 | 2019-09-13 | 廊坊市鼎盛机械设备有限公司 | Inner wall of the pipe girth joint repaired mouth equipment |
-
2019
- 2019-07-15 CN CN201921102783.9U patent/CN210187523U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227625A (en) * | 2019-07-15 | 2019-09-13 | 廊坊市鼎盛机械设备有限公司 | Inner wall of the pipe girth joint repaired mouth equipment |
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