CN114558727A - Segmented reciprocating type pipeline centrifugal spraying repair method - Google Patents
Segmented reciprocating type pipeline centrifugal spraying repair method Download PDFInfo
- Publication number
- CN114558727A CN114558727A CN202210163080.7A CN202210163080A CN114558727A CN 114558727 A CN114558727 A CN 114558727A CN 202210163080 A CN202210163080 A CN 202210163080A CN 114558727 A CN114558727 A CN 114558727A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- repair method
- spraying
- reciprocating type
- centrifugal spraying
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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
- B05B13/0636—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies by means of rotatable spray heads or nozzles
-
- 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
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
- B05B13/0405—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads
- B05B13/041—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads with spray heads reciprocating along a straight line
-
- 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
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a segmented reciprocating type pipeline centrifugal spraying repair method, which comprises the following steps: s1, controlling the walking vehicle to move to the farthest position to be repaired along the pipeline, wherein the walking vehicle is provided with a reciprocating mechanism and a sprayer; and S2, controlling the traveling vehicle to retreat to the position in the pipeline, driving the sprayer to reciprocate in the current retreat section of the pipeline through the reciprocating mechanism, and spraying the current retreat section of the pipeline layer by layer. The invention has the beneficial effects that: the pipeline to be repaired is divided into a plurality of backspacing sections, multi-layer spraying is carried out in sections, and the spraying is carried out step by step until the whole pipeline spraying is finished, so that the interlayer waiting process of multi-layer thin spraying is avoided, the spraying and repairing construction process can be finished at one time, the construction efficiency is improved, and the material waste is reduced; in addition, the travelling vehicle moves in a backward mode to spray the pipeline to be repaired in sections, so that the travelling vehicle is prevented from travelling on the coating sprayed on the inner wall of the pipeline, and the performance of the coating is guaranteed not to be damaged.
Description
Technical Field
The invention relates to the technical field of pipeline repair spraying, in particular to a sectional reciprocating type pipeline centrifugal spraying repair method.
Background
After the pipeline runs for a plurality of years, various damages and leakage can be caused due to corrosion, poor operation management and the like, and then in order to restore the normal use function of the pipeline, the damaged and leaked pipeline needs to be repaired. The spraying repair is one of the main modes of pipeline repair, when the pipeline is sprayed and repaired at present, a centrifugal sprayer is erected on the central axis of the pipeline to be repaired through a special bracket, and because the bracket of the sprayer needs to walk or drag on the inner wall, the spraying material generally needs a certain time to solidify, and the spraying process has certain fluidity, the thickness of each spraying is limited; the method often adopted when the requirement on the repair spraying thickness of the pipeline is thicker is the integral layered spraying of the pipeline, namely, the next layer is sprayed after the previous layer is solidified and has certain strength, otherwise, the sprayer support and related accessories can damage the coating which is not solidified, so that the spraying interval time of the two adjacent layers of coatings in the pipeline is long, and the pipeline repair efficiency is lower.
Disclosure of Invention
In view of this, in order to solve the spraying problem when the thickness of the repaired coating in the pipeline is thick, the embodiment of the invention provides a segmented reciprocating type pipeline centrifugal spraying repairing method.
The embodiment of the invention provides a segmented reciprocating type pipeline centrifugal spraying repair method, which comprises the following steps:
s1, controlling the walking vehicle to move to the farthest position to be repaired along the pipeline, wherein the walking vehicle is provided with a reciprocating mechanism and a sprayer;
and S2, controlling the traveling vehicle to retreat to the position in the pipeline, driving the sprayer to reciprocate in the current retreat section of the pipeline through the reciprocating mechanism, and spraying the current retreat section of the pipeline layer by layer.
Further, the method also includes step S3: repeating the step S2 until the traveling vehicle retreats to the duct entrance.
Further, the length of the retreat segment of each retreat of the traveling vehicle in the steps S2 and S3 is the same.
Further, the step S1 controls the traveling vehicle to move along the pipe to the end of the pipe.
The method further comprises the step of acquiring image data in the pipeline through a video monitoring system mounted on the walking vehicle.
Further, in step S2, a displacement of the traveling vehicle is detected, and the traveling vehicle is controlled to move back to the pipe internal setting position according to the displacement of the traveling vehicle.
Furthermore, a lifting support is further arranged on the walking vehicle, and the reciprocating mechanism is mounted on the lifting support.
Further, the reciprocating mechanism is an electric screw rod with adjustable speed.
Furthermore, the reciprocating mechanism is an electric push rod with adjustable speed.
Further, the reciprocating mechanism is a rack and pinion assembly driven by a motor.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: according to the segmented reciprocating type pipeline centrifugal spraying repair method, a pipeline to be repaired is divided into a plurality of backspacing segments, multi-layer spraying is carried out in a segmented mode, and the spraying is carried out step by step until the whole pipeline spraying is finished, so that the interlayer waiting process of multi-layer thin spraying is avoided, the spraying repair construction process is finished at one time, the construction efficiency is improved, and the material waste is reduced; in addition, the travelling vehicle moves in a backward mode to spray the pipeline to be repaired in sections, so that the travelling vehicle is prevented from travelling on the coating sprayed on the inner wall of the pipeline, and the performance of the coating is guaranteed not to be damaged.
Drawings
Fig. 1 to 4 are construction schematic diagrams of a sectional reciprocating type pipeline centrifugal spraying repair method of the invention.
In the figure: 1-pipeline, 2-sprayer, 3-reciprocating mechanism, 4-walking vehicle, 5-material pipe, 6-repair coating, 7-first coating, 8-second coating and 9-third coating.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings. The following presents a simplified summary of the invention in order to provide a basic understanding of the invention and to provide a basic understanding of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 4, an embodiment of the present invention provides a segmented reciprocating type pipeline centrifugal spraying repair method, which is mainly applied to repairing a pipeline culvert, and is particularly suitable for a situation that a repair material needs to be sprayed thickly, and the repair method mainly includes the following steps:
and S1, controlling the traveling vehicle 4 to move to the farthest position to be repaired along the pipeline 1, wherein the traveling vehicle 4 is provided with a reciprocating mechanism 3 and a sprayer 2.
As shown in fig. 1, the walking vehicle 4 is a self-walking chassis capable of being controlled remotely, is powered by a power battery, and can walk along the inner wall of the pipeline 1 in the pipeline 1. Firstly, the walking vehicle 4 is controlled to enter the pipeline 1 from one end of the inlet of the pipeline 1 and walk to the farthest position of the pipeline 1 to be repaired. And when the pipeline 1 is required to be completely repaired by spraying, controlling the walking vehicle to move along the pipeline 1 to the tail end of the pipeline 1.
The walking vehicle 4 is further provided with a lifting support, the reciprocating mechanism 3 is installed on the lifting support, the lifting support is composed of an X-shaped metal support and a driving assembly, the driving assembly is in the form of an electric push rod or an electric screw rod, and lifting, falling and locking of the lifting support are achieved. The lifting support is used for adjusting the height of the sprayer 2, so that the sprayer 2 is located on the central axis of the pipeline 1 as much as possible, and the inner wall of the pipeline 1 can be sprayed more uniformly.
The sprayer 2 is specifically a centrifugal sprayer, and the sprayer 2 is installed on the reciprocating mechanism 3. The rear part of the sprayer 2 is connected with a material pipe 5, and the sprayer 2 is supplied with repair paint through the material pipe 5. The reciprocating mechanism 3 is used for driving the sprayer 2 to reciprocate back and forth. The reciprocating mechanism 3 is a transversely arranged linear displacement mechanism, and can be selected in various ways.
If the reciprocating mechanism 3 can select an electric screw rod with adjustable speed, the sprayer 2 is arranged on a sliding table of the electric screw rod; the reciprocating mechanism 3 can also select an electric push rod with adjustable speed, and the sprayer 2 is arranged at the output end of the electric push rod; and a gear rack assembly driven by a motor can be selected, and the gear rack assembly is driven to rotate by the motor to drive the gear rack to move in a telescopic manner, so that the sprayer 2 is driven to move back and forth.
And S2, controlling the traveling vehicle 4 to retreat to the inner set position of the pipeline 1, and driving the sprayer 2 to reciprocate in the current retreat section of the pipeline 1 through the reciprocating mechanism 3 to spray the current retreat section of the pipeline 1 layer by layer.
Specifically, the traveling vehicle 4 remains stationary after retracting to a set position, the retracting direction is the direction of the arrow shown in fig. 1, and the portion of the pipeline between the current position of the traveling vehicle 4 and the position before retracting is the current retracting segment. The set position is determined by the stroke of the shuttle 3, i.e. the current retraction should be within the range of the forward and backward movement of the applicator 2.
When the sprayer 2 moves back and forth, the sprayer 2 rotationally sprays the inner wall of the pipeline 1 until the repair coating on the inner wall of the pipeline 1 reaches the required thickness, and the spraying range covers the whole section of the inner wall of the pipeline 1. The sprayer sprays two layers of coating, such as the first coating 7 and the second coating 8 of 1 and 2, onto the pipe each time the sprayer is reciprocated back and forth. The number of times of the back and forth reciprocating of the sprayer 2 can be flexibly set according to the thickness of the repair coating 6 to be sprayed, and if the repair coating 6 consists of the first coating 7, the second coating 8 and the third coating 9 in the embodiment, the sprayer 2 only needs to reciprocate twice.
If only one or one section of the pipeline 1 needs to be sprayed and repaired, the spraying and repairing of the pipeline 1 can be completed only by positioning the repaired part in the current rollback section. However, many times the pipeline 1 needs to be entirely repaired by spraying, and the repairing method further includes step S3.
Step S3: and after the repair of the current retraction section of the pipeline 1 is completed, repeating the step S2, controlling the traveling vehicle 4 to retract section by section in the pipeline 1, and repairing each retraction section of the pipeline 1 one by one until the traveling vehicle 4 retracts to the inlet of the pipeline 1, thereby completing the complete spraying repair of the pipeline 1.
Since the stroke of the shuttle 3 is fixed, the length of the retreat segment of the traveling vehicle 4 retreated each time in the steps S2 and S3 is set to be the same, and the retreat length should be less than or equal to the stroke of the shuttle 3.
In addition, a distance sensor may be disposed on the traveling vehicle 4, the distance sensor may detect a displacement of the traveling vehicle 4, and when the retraction length of the traveling vehicle 4 is determined, the traveling vehicle 4 may be controlled to retract to a predetermined position in the pipe 1 according to the displacement of the traveling vehicle 4, so that the traveling vehicle 4 may be accurately retracted to the predetermined position.
And finally, after the walking vehicle 4 enters the pipeline 1, acquiring image data in the pipeline through a video monitoring system carried on the walking vehicle 4. The video monitoring system transmits the image data of the internal operation condition of the pipeline 1 to a ground display platform in real time through a wired or wireless network, and the functions of capturing photos, recording videos and the like can be realized.
According to the segmented reciprocating type pipeline centrifugal spraying repair method, the pipeline 1 is divided into a plurality of backspacing segments, when each backspacing segment is sprayed, the walking vehicle 4 is kept static, the sprayer 2 is driven to move back and forth through the reciprocating mechanism 3, and the backspacing segments are sprayed in a layered mode; and then, spraying each retraction section by section to finish the spraying repair process of the pipeline 1.
In this document, the terms front, back, upper, lower and the like in the drawings are used for the sake of clarity and convenience only for the components are located in the drawings and the positions of the components relative to each other. It should be understood that they are relative concepts, which may be varied in relation to their use and placement, and that the use of directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A sectional reciprocating type pipeline centrifugal spraying repair method is characterized by comprising the following steps:
s1, controlling the walking vehicle to move to the farthest position to be repaired along the pipeline, wherein the walking vehicle is provided with a reciprocating mechanism and a sprayer;
and S2, controlling the traveling vehicle to retreat to the position in the pipeline, driving the sprayer to reciprocate in the current retreat section of the pipeline through the reciprocating mechanism, and spraying the current retreat section of the pipeline layer by layer.
2. The centrifugal spraying repair method for the pipeline, which is in the segmented reciprocating type, as claimed in claim 1, further comprising the step S3 of: repeating the step S2 until the traveling vehicle retreats to the duct entrance.
3. The centrifugal spraying repair method for the segmented reciprocating type pipeline as claimed in claim 2, wherein: the length of the retreat segment of each retreat of the traveling vehicle in the steps S2 and S3 is the same.
4. The segment reciprocating type pipeline centrifugal spraying repair method as claimed in claim 1, wherein: and controlling the walking vehicle to move along the pipeline to the tail end of the pipeline in the step S1.
5. The segment reciprocating type pipeline centrifugal spraying repair method as claimed in claim 1, wherein: and acquiring image data in the pipeline through a video monitoring system carried on the walking vehicle.
6. The centrifugal spraying repair method for the sectional reciprocating type pipeline as claimed in claim 1, wherein: in step S2, the displacement of the traveling vehicle is detected, and the traveling vehicle is controlled to move back to the preset position in the pipeline according to the displacement of the traveling vehicle.
7. The segment reciprocating type pipeline centrifugal spraying repair method as claimed in claim 1, wherein: the walking vehicle is also provided with a lifting support, and the reciprocating mechanism is arranged on the lifting support.
8. The centrifugal spraying repair method for the sectional reciprocating type pipeline as claimed in claim 1, wherein: the reciprocating mechanism is an electric screw rod with adjustable speed.
9. The segment reciprocating type pipeline centrifugal spraying repair method as claimed in claim 1, wherein: the reciprocating mechanism is an electric push rod with adjustable speed.
10. The segment reciprocating type pipeline centrifugal spraying repair method as claimed in claim 1, wherein: the reciprocating mechanism is a rack and pinion assembly driven by a motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210163080.7A CN114558727A (en) | 2022-02-22 | 2022-02-22 | Segmented reciprocating type pipeline centrifugal spraying repair method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210163080.7A CN114558727A (en) | 2022-02-22 | 2022-02-22 | Segmented reciprocating type pipeline centrifugal spraying repair method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114558727A true CN114558727A (en) | 2022-05-31 |
Family
ID=81714455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210163080.7A Withdrawn CN114558727A (en) | 2022-02-22 | 2022-02-22 | Segmented reciprocating type pipeline centrifugal spraying repair method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114558727A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199861A (en) * | 2022-07-06 | 2022-10-18 | 广东粤海水务投资有限公司 | Crawler-type self-adaptation pipeline inner wall spraying prosthetic devices |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060045A (en) * | 1991-08-10 | 1992-04-08 | 胜利石油管理局油建一公司 | Repairing machine for steel pipe inner coating welded point |
| JP2006281428A (en) * | 2005-03-31 | 2006-10-19 | Murai Kogyosho:Kk | In-tube repairing driller and in-tube repairing drilling method by it |
| KR20120066761A (en) * | 2010-12-15 | 2012-06-25 | 주식회사 로봇스토리 | Robot for coating inner surface of steel pipe |
| CN109277235A (en) * | 2018-10-23 | 2019-01-29 | 上海应用技术大学 | A kind of slender pipeline inside courtyard spray equipment |
| CN110280425A (en) * | 2019-07-19 | 2019-09-27 | 西安长庆科技工程有限责任公司 | A kind of defeated small pipe-line pipe inner-wall spraying vehicle of length and method |
| CN111589626A (en) * | 2020-07-02 | 2020-08-28 | 隋广林 | Pipeline internal corrosion prevention device |
| CN112630229A (en) * | 2021-03-09 | 2021-04-09 | 西南石油大学 | Pipeline robot for oil and gas pipeline and pipeline defect detection and repair method |
| CN113275166A (en) * | 2021-04-28 | 2021-08-20 | 浙江易承环境科研有限公司 | Trenchless pipeline repairing device and repairing method |
-
2022
- 2022-02-22 CN CN202210163080.7A patent/CN114558727A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060045A (en) * | 1991-08-10 | 1992-04-08 | 胜利石油管理局油建一公司 | Repairing machine for steel pipe inner coating welded point |
| JP2006281428A (en) * | 2005-03-31 | 2006-10-19 | Murai Kogyosho:Kk | In-tube repairing driller and in-tube repairing drilling method by it |
| KR20120066761A (en) * | 2010-12-15 | 2012-06-25 | 주식회사 로봇스토리 | Robot for coating inner surface of steel pipe |
| CN109277235A (en) * | 2018-10-23 | 2019-01-29 | 上海应用技术大学 | A kind of slender pipeline inside courtyard spray equipment |
| CN110280425A (en) * | 2019-07-19 | 2019-09-27 | 西安长庆科技工程有限责任公司 | A kind of defeated small pipe-line pipe inner-wall spraying vehicle of length and method |
| CN111589626A (en) * | 2020-07-02 | 2020-08-28 | 隋广林 | Pipeline internal corrosion prevention device |
| CN112630229A (en) * | 2021-03-09 | 2021-04-09 | 西南石油大学 | Pipeline robot for oil and gas pipeline and pipeline defect detection and repair method |
| CN113275166A (en) * | 2021-04-28 | 2021-08-20 | 浙江易承环境科研有限公司 | Trenchless pipeline repairing device and repairing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199861A (en) * | 2022-07-06 | 2022-10-18 | 广东粤海水务投资有限公司 | Crawler-type self-adaptation pipeline inner wall spraying prosthetic devices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109365339B (en) | Automatic circumferential cleaning and film coating construction device and method for large-section tunnel lining trolley template | |
| CN109261407B (en) | Surface coating robot operation system and method | |
| CN114558727A (en) | Segmented reciprocating type pipeline centrifugal spraying repair method | |
| CN110761539B (en) | Spraying device and ground spraying robot | |
| KR101914524B1 (en) | Mobile Concrete Building 3D Printing System | |
| CN106238257A (en) | Tunnel-side flush coater | |
| CN104818999A (en) | Concrete spraying and painting integration tunnel construction device | |
| KR101487311B1 (en) | Painting Unit for Tower Pipe Outer Surface | |
| CN106019513A (en) | Optical fiber and cable factice spraying system adjusting spraying amount intelligently | |
| CN204691787U (en) | A kind of concrete ejection smears integrated constructing tunnel device | |
| CN111636653B (en) | Paint spraying and crack repairing device for building outer wall | |
| CN110158757A (en) | The machine artificial process cleaned and repaired automatically for sewage conduct inner wall | |
| JP3939415B2 (en) | Reinforcing plate installation device and installation method | |
| CN112808484A (en) | Spraying equipment and spraying method for outer wall of barrel | |
| CN109680585B (en) | Lawn laying device with sweeping and flattening functions for ring art design | |
| CN220540602U (en) | Underground pipe network lining repairing device | |
| CN114054248A (en) | Pipeline inside and outside coating equipment | |
| CN220438183U (en) | Pipeline inner coating electric spark pipeline detection system | |
| CN219232810U (en) | Automatic spraying system for repairing non-excavation large-diameter pipeline | |
| CN112431135A (en) | Intelligent high-pier concrete spraying maintenance device and construction method | |
| CN116811634B (en) | Mechanical auxiliary device for charging pile | |
| CN116477078B (en) | Intelligent asphalt pavement disease repairing equipment and method based on unmanned aerial vehicle 3D printing | |
| CN115027620B (en) | Novel intelligent crawler crane baffle device and working method thereof | |
| CN219376532U (en) | Multidirectional coal shed spraying dust suppression device | |
| CN220468740U (en) | Tunnel concrete sprays curing means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220531 |