Anti-corrosion coating device for petroleum pipeline

Abstract

The utility model discloses an anti-corrosion coating device for a petroleum pipeline, and relates to the technical field of petroleum pipelines, in particular to the anti-corrosion coating device for the petroleum pipeline, which comprises an anti-corrosion coating box, a diaphragm pump, a pipe frame body and an annular frame, the ends, away from the pipe frame body, of the supporting rods are fixedly installed on the annular frame. The whole pipe frame body is annular; according to the anti-corrosion coating device for the petroleum pipeline, the anti-corrosion coating box, the diaphragm pump, the pipe frame body and the coating pipe are arranged in a matched mode, so that the anti-corrosion coating device for the petroleum pipeline has the effects of moving along the petroleum pipeline and spraying anti-corrosion coating on the outer side wall of the petroleum pipeline in a large area in all directions; the anti-corrosion coating is conveyed to the coating pipe, the coating in the coating pipe is sprayed to the outer side wall of the petroleum pipeline through the wide-angle nozzles, the spraying area of the petroleum pipeline is larger, and the spraying efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum pipelines, in particular to an anti-corrosion coating device for petroleum pipelines. Background Art

[0002] Before the oil pipeline is buried, in order to increase its service life and prevent the oil pipeline from oxidation and rust, it is necessary to apply anti-corrosion coating on the surface of the oil pipeline to protect its surface from corrosion. Before coating, the surface of the oil pipeline often needs to be fully cleaned and prepared to ensure that the anti-corrosion material can firmly adhere to the outer wall of the oil pipeline. At present, when applying anti-corrosion coating to oil pipelines, most of them are manual operations. Due to the spatial arrangement of oil pipelines and other reasons, the manual construction speed is slow and the operation is very difficult. In addition, when cleaning the outer wall of the oil pipeline, it is difficult to evenly grind the oil pipeline manually, which leads to uneven coating of the anti-corrosion coating when spraying the anti-corrosion coating later.

[0003] In the published Chinese patent application, publication number: CN117505143A, patent name: an anti-corrosion coating device for oil pipelines. When it is necessary to spray an anti-corrosion coating on the oil pipeline, the staff assembles the device on the oil pipeline so that the device is wrapped around the outer wall of the oil pipeline. Then the staff rotates the second rotating ring. The rotation of the second rotating ring drives the four circumferentially distributed electric wheel frames to slide inward along the second fixed ring synchronously. When the four circumferentially distributed electric wheel frames contact the oil pipeline, the four circumferentially distributed electric wheel frames support the device with the outer wall of the oil pipeline. Then the staff passes the plug shaft through the limit hole. Insert the plug-in shaft into the through hole of the electric wheel frame, and limit the electric wheel frame by the plug-in shaft to prevent the second fixed ring and the second rotating ring from sliding during spraying, which causes the device and the oil pipeline to tilt. Then the staff rotates the first fixed ring, and the rotation of the first fixed ring drives the four circumferentially distributed support shafts and the parts thereon to slide synchronously along the second rotating ring. When the four circumferentially distributed support shafts and the parts thereon move to the required working position, the staff inserts the plug-in shaft into the through hole of the support shaft through the limiting hole, and limits the support shaft by the plug-in shaft to ensure the stability of the device when spraying the anti-corrosion coating. Then turn on the nozzle, and the nozzle sprays the anti-corrosion coating on the polished oil pipeline. However, when the prior art sprays the oil pipeline, only one nozzle is driven by the driving component to reciprocate around the outer wall of the oil pipeline to spray, and its spraying efficiency is low. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides an anti-corrosion coating device for a petroleum pipeline, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: an anti-corrosion coating device for petroleum pipelines, comprising an anti-corrosion paint box, a diaphragm pump, a pipe rack body and an annular rack, a side wall of the pipe rack body being detachably connected to a plurality of support rods, and an end of the support rods away from the pipe rack body being fixedly mounted to the annular rack; the pipe rack body is annular as a whole, a plurality of rolling balls are embedded on the inner side wall of the pipe rack body, and each rolling ball is rotatably connected to the pipe rack body, and a partial spherical surface of each rolling ball slightly protrudes from the inner side wall surface of the pipe rack body; a plurality of wide-angle nozzles are arranged and installed on the inner side wall of the pipe rack body in sequence, and the jet end of each wide-angle nozzle faces the center of the pipe rack body; a paint pipe is arranged inside the pipe rack body, and the paint pipe is connected to each wide-angle nozzle in sequence; the inlet end of the diaphragm pump is connected to the inside of the anti-corrosion paint box, and the outlet end of the diaphragm pump is connected to the inlet end of the paint pipe through a conduit.

[0008] Optionally, a rubber cloth is hung on a side wall of the pipe frame away from the support rod through a plurality of connecting ropes.

[0009] Optionally, the pipe frame body is composed of a semi-annular main frame and a sub-frame, one end of the main frame is hinged to one end of the sub-frame, and the other end of the main frame is movably connected to the other end of the sub-frame.

[0010] Optionally, the annular frame is composed of a semi-annular main ring frame and a secondary ring frame, one end of the main ring frame is hinged to one end of the secondary ring frame, and the other end of the main ring frame is movably connected to the other end of the secondary ring frame.

[0011] Optionally, a pipe joint is fixedly mounted on the outer side wall of the pipe rack body, and the inflow end of the paint pipe is connected to the pipe joint.

[0012] (III) Beneficial effects

[0013] The utility model provides an anti-corrosion coating device for a petroleum pipeline, which has the following beneficial effects: the anti-corrosion coating device for a petroleum pipeline, through the coordinated arrangement of an anti-corrosion coating box, a diaphragm pump, a pipe frame, and a coating pipe, enables the anti-corrosion coating device for a petroleum pipeline to move along the petroleum pipeline and spray the anti-corrosion coating on the outer wall of the petroleum pipeline over a large area and in all directions; the diaphragm pump extracts the anti-corrosion coating in the anti-corrosion coating box and transports the anti-corrosion coating to the coating pipe; the coating in the coating pipe is sprayed onto the outer wall of the petroleum pipeline through various wide-angle nozzles; the spraying area of ​​the petroleum pipeline is larger and the spraying efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of an anti-corrosion coating device for petroleum pipelines according to the utility model;

[0016] Figure 2 This is a three-dimensional structural schematic diagram of a pipe frame of an anti-corrosion coating device for a petroleum pipeline according to the utility model;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the utility model when it is implemented on a petroleum pipeline.

[0018] In the figure: 1. pipe rack body; 101. main frame body; 102. auxiliary frame body; 2. ring frame; 201. main ring frame; 202. auxiliary ring frame; 3. support rod; 5. rubber cloth; 6. rolling ball; 7. wide-angle nozzle; 8. pipe joint; 9. connecting rope; 10. oil pipeline. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indications or implications.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0021] See also Figures 1 to 3The utility model provides a technical solution: an anti-corrosion coating device for a petroleum pipeline, comprising an anti-corrosion coating box, a diaphragm pump, a pipe rack body 1 and a ring rack 2, a side wall of the pipe rack body 1 is detachably connected with a plurality of support rods 3, and one end of the support rods 3 away from the pipe rack body 1 is fixedly installed with the ring rack 2.

[0022] The anti-corrosion coating box is used to contain the anti-corrosion coating solution. The diaphragm pump is used to extract the anti-corrosion coating in the anti-corrosion coating box and transport the anti-corrosion coating to the outer wall of the oil pipeline 10.

[0023] The pipe rack body 1 is annular in shape as a whole. A plurality of rolling balls 6 are embedded on the inner wall of the pipe rack body 1, and each rolling ball 6 is rotatably connected to the pipe rack body 1. The partial spherical surface of each rolling ball 6 slightly protrudes from the inner wall surface of the pipe rack body 1. A plurality of wide-angle nozzles 7 are arranged and installed on the inner wall of the pipe rack body 1 in sequence, and the jet end of each wide-angle nozzle 7 faces the center of the pipe rack body 1. A paint pipe is arranged inside the pipe rack body 1, and the paint pipe is connected to each wide-angle nozzle 7 in sequence. The inflow end of the diaphragm pump is connected to the inside of the anti-corrosion paint box, and the outflow end of the diaphragm pump is connected to the inflow end of the paint pipe through a conduit.

[0024] The pipe rack body 1 can move on the outer wall of the oil pipeline 10 through the rolling balls 6 located on the inner wall thereof. The rolling balls 6 are also rollers, and each rolling ball 6 is used to facilitate the movement of the pipe rack body 1 on the oil pipeline 10. The pipe rack body 1 is movably sleeved on the outer wall of the oil pipeline 10, and the pipe rack body 1 moves on the outer wall of the oil pipeline 10 and along its length direction. The movement of the pipe rack body 1 drives the movement of each wide-angle nozzle 7, and the wide-angle nozzle 7 moves to spray the pipe rack body 1. The anti-corrosion paint sprayed by each wide-angle nozzle 7 is coated on the outer wall of the oil pipeline 10. The diaphragm pump extracts the anti-corrosion paint in the anti-corrosion paint box, and the diaphragm pump transports the anti-corrosion paint to the paint pipe through the conduit. The anti-corrosion paint flows in the paint pipe and is divided into each wide-angle nozzle 7, and is sprayed by the wide-angle nozzle 7. The anti-corrosion paint sprayed from the wide-angle nozzle 7 is coated on the outer wall of the oil pipeline 10.

[0025] Specifically, a rubber sheet 5 is hung on a side wall of the pipe rack body 1 away from the support rod 3 through a plurality of connecting ropes 9. The rubber sheet 5 is wound around the outer side wall of the oil pipeline 10, and the rubber sheet 5 surrounds the oil pipeline 10.

[0026] The pipe rack body 1 moves along the length direction of the oil pipeline 10. When the pipe rack body 1 moves, the rubber cloth 5 is pulled by a plurality of connecting ropes 9 to move. The rubber cloth 5 moves close to the outer wall of the oil pipeline 10. The rubber cloth 5 evenly spreads the anti-corrosion coating on the outer wall of the oil pipeline 10, so that the anti-corrosion coating is evenly coated on the outer wall of the oil pipeline 10. The rubber cloth 5 has certain wear resistance.

[0027] Specifically, the pipe frame body 1 is composed of a semi-circular main frame 101 and a sub-frame 102 , one end of the main frame 101 is hinged to one end of the sub-frame 102 , and the other end of the main frame 101 is movably connected to the other end of the sub-frame 102 .

[0028] The pipe rack body 1 is composed of a semi-circular main frame 101 and a sub-frame 102, which facilitates the installation of the pipe rack body 1 on the outer wall of the oil pipeline 10. During installation, the main frame 101 and the sub-frame 102 are first opened, and the main frame 101 is close to the oil pipeline 10. Thereafter, the sub-frame 102 is buckled and close to the oil pipeline 10. The main frame 101 and the sub-frame 102 form an integral ring and are sleeved on the outer wall of the oil pipeline 10.

[0029] Specifically, the annular frame 2 is composed of a semi-annular main annular frame 201 and a secondary annular frame 202 , one end of the main annular frame 201 is hinged to one end of the secondary annular frame 202 , and the other end of the main annular frame 201 is movably connected to the other end of the secondary annular frame 202 .

[0030] The annular frame 2 is composed of a semi-annular main annular frame 201 and a secondary annular frame 202, which facilitates the installation of the annular frame 2 on the outer wall of the oil pipeline 10. During installation, the main annular frame 201 and the secondary annular frame 202 are first opened, and the main annular frame 201 is close to the oil pipeline 10. Thereafter, the secondary annular frame 202 is closed and close to the oil pipeline 10. The main annular frame 201 and the secondary annular frame 202 form an integral annular shape and are sleeved on the outer wall of the oil pipeline 10.

[0031] Specifically, a pipe joint 8 is fixedly mounted on the outer wall of the pipe rack body 1, and the inflow end of the paint pipe is connected to the pipe joint 8. The inflow end of the pipe joint 8 is connected to the outflow end of the conduit.

[0032] Among them, the diaphragm pump extracts the anti-corrosion paint in the anti-corrosion paint box, and the diaphragm pump transports the anti-corrosion paint to the paint pipe through the conduit and the pipe joint 8. The anti-corrosion paint flows in the paint pipe and is divided into each wide-angle nozzle 7 and is sprayed out by the wide-angle nozzle 7. The anti-corrosion paint sprayed from the wide-angle nozzle 7 is coated on the outer wall of the oil pipeline 10.

[0033] The movement direction of the anti-corrosion coating device for oil pipelines shown in the present application is: moving from the side where the rubber cloth 5 is located to the side where the annular frame 2 is located. The anti-corrosion coating device for oil pipelines shown in the present application moves along the oil pipeline 10.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-corrosion coating device for petroleum pipelines, characterized in that: It comprises an anti-corrosion paint box, a diaphragm pump, a pipe frame body (1) and an annular frame (2), wherein a plurality of support rods (3) are detachably connected to a side wall of the pipe frame body (1), and one end of the support rods (3) away from the pipe frame body (1) is fixedly mounted to the annular frame (2); The pipe rack body (1) is annular in shape as a whole, and a plurality of rolling balls (6) are embedded on the inner wall of the pipe rack body (1), and each rolling ball (6) is rotatably connected to the pipe rack body (1), and a partial spherical surface of each rolling ball (6) slightly protrudes from the inner wall surface of the pipe rack body (1); a plurality of wide-angle nozzles (7) are arranged and installed on the inner wall of the pipe rack body (1) in sequence, and the jet end of each wide-angle nozzle (7) faces the center of the pipe rack body (1); a paint pipe is arranged inside the pipe rack body (1), and the paint pipe is connected to each wide-angle nozzle (7) in sequence; the inflow end of the diaphragm pump is connected to the inside of the anti-corrosion paint box, and the outflow end of the diaphragm pump is connected to the inflow end of the paint pipe through a conduit.

2. The anti-corrosion coating device for petroleum pipeline according to claim 1, characterized in that: A rubber cloth (5) is hung on a side wall of the pipe frame body (1) away from the support rod (3) via a plurality of connecting ropes (9).

3. The anti-corrosion coating device for petroleum pipeline according to claim 1, characterized in that: The pipe frame body (1) is composed of a semi-circular main frame body (101) and a sub-frame body (102); one end of the main frame body (101) is hinged to one end of the sub-frame body (102); and the other end of the main frame body (101) is movably connected to the other end of the sub-frame body (102).

4. The anti-corrosion coating device for petroleum pipeline according to claim 1, characterized in that: The annular frame (2) is composed of a semi-annular main annular frame (201) and a secondary annular frame (202); one end of the main annular frame (201) is hinged to one end of the secondary annular frame (202); and the other end of the main annular frame (201) is movably connected to the other end of the secondary annular frame (202).

5. The anti-corrosion coating device for petroleum pipeline according to claim 1, characterized in that: A pipe joint (8) is fixedly mounted on the outer side wall of the pipe frame body (1), and the inflow end of the paint pipe is connected to the pipe joint (8).

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