Cleaning tool for PE anti-corrosion layer of small-caliber single-well gathering and transportation pipeline

Abstract

The utility model discloses a small-caliber single well gathering and transportation pipeline PE anticorrosive coating cleaning tool which comprises a buckle and a grinding machine, a set of idler wheels used for making rolling contact with the outer wall of a gathering and transportation pipeline are arranged on the inner side of the buckle, and a transverse plate is arranged on the outer side of the buckle; the head of the grinding machine is provided with a grinding wheel for cleaning a PE anticorrosive coating of the gathering and transportation pipeline, the front end of the grinding machine is hinged to the front end of the transverse plate, a supporting spring is hinged to the rear end of the grinding machine, and the other end of the supporting spring is hinged to the rear end of the transverse plate. The device is simple and reasonable in structure, compact in equipment and high in portability, the efficiency of stripping and cleaning an anticorrosive coating in a mechanical polishing mode is higher, the surface of a cleaned pipeline is flat and smooth, and later welding and other operations are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline operation technical field, concretely relates to a small -bore single well gathering pipeline PE anticorrosive layer cleaning tool. BACKGROUND

[0002] PE anticorrosive pipe has very extensive application in various pipelines in oilfield, and before welding operation such as new pipeline junction, additional branch pipeline junction of built pipeline, pipeline leakage emergency repair, needs to peel off PE anticorrosive coating, otherwise cannot guarantee the welding quality.

[0003] At present, the common PE layer removal method in the field is mainly flame peeling method and manual grinding peeling method.

[0004] Among them, the flame peeling method adopts methane, acetylene and the like spray gun (for example, the gun head of the patent number CN202322193327.2, a kind of flame cutting device), and the flammable gas is baked to the outer wall of pipeline to make the anticorrosive plastic layer soften and then removed, and the disadvantage of this method is that: it is easy to cause burn to the anticorrosive layer body, and the safety is not high, especially in the case of oil and gas medium, pipeline repair, safety accidents are prone to occur, and environmental pollution is also caused.

[0005] In addition, the grinding peeling method is a method of using some grinding tools or sandpaper and the like to gradually grind off the rubber on the surface of the steel pipe, and the disadvantage of this method is: time-consuming, laborious, low efficiency, and poor cleaning effect. SUMMARY

[0006] The utility model discloses a small -bore single well gathering pipeline PE anticorrosive layer cleaning tool to solve the technical problem in the prior art.

[0007] The technical scheme of the utility model is: a small -bore single well gathering pipeline PE anticorrosive layer cleaning tool, including fastener and grinding machine, the inside of fastener is equipped with a group of gyro wheel for with gathering pipeline outer wall rolling contact, the outside of fastener is equipped with horizontal plate;

[0008] The head of grinding machine is equipped with the polishing wheel of gathering pipeline PE anticorrosive layer cleaning, and the front end of grinding machine is hinged with the front end of horizontal plate, and the rear end of grinding machine is hinged with support spring, and the other end of support spring is hinged with the rear end of horizontal plate.

[0009] Preferably, the fastener includes an upper half ring and a lower half ring, one end of the upper half ring and the lower half ring is hinged, and the other end is connected by a buckle.

[0010] Preferably, the lower half ring is in U-shaped structure, the bottom of the U-shaped structure is screw-connected with a vertical arranged screw rod, the top of the screw rod is rotatably connected with a lifting frame, and a group of gyro wheels are distributed on the top of the lifting frame and the inner side of the upper half ring.

[0011] Preferably, the two ends of the lifting frame are respectively in sliding connection with the two sides of the U-shaped structure.

[0012] Preferably, the bottom of the lead screw is provided with a rotating handle.

[0013] Preferably, the buckle is connected with a driving rod extending to the outside.

[0014] Preferably, the head of the grinding machine is further provided with a dustproof cover covering the top of the grinding wheel.

[0015] Preferably, the grinding machine is a rechargeable mobile grinding machine.

[0016] Compared with the prior art, the utility model has the following advantages: the utility model has simple and reasonable structure, compact equipment and strong portability, the anticorrosive layer is stripped and cleaned in a more efficient way through the mechanical polishing mode, the cleaned pipeline surface is smooth and flat, and the post-operation such as welding is facilitated, and the utility model is safe and reliable in use without fire. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model in example 1;

[0018] Figure 2 is a use state schematic view of the utility model in example 1;

[0019] Figure 3 is a structural schematic view of the utility model in example 2;

[0020] Figure 4 is a structural schematic view of the buckle in example 2;

[0021] In the drawing: 1, grinding machine, 2, dustproof cover, 3, grinding wheel, 4, roller, 5, buckle, 6, supporting spring, 7, horizontal plate, 8, gathering pipeline, 9, lifting frame, 10, lead screw, 11, rotating handle, 12, upper half ring, 13, lower half ring, 14, buckle, 15, driving rod. DETAILED DESCRIPTION

[0022] The utility model is further described below in combination with the drawings and examples. Example 1

[0023] As Figure 1 and Figure 2 A small-caliber single-well gathering pipeline 8PE anticorrosive layer cleaning tool, including buckle 5 and grinding machine 1, the grinding machine 1 is portable rechargeable mobile grinding machine 1, the inner side of buckle 5 is equipped with a group of rollers 4, and the outer side of buckle 5 is equipped with horizontal plate 7.

[0024] The head of the grinding machine 1 is provided with a grinding wheel 3 for cleaning the PE anticorrosive layer of the gathering pipeline 8, the front end of the grinding machine 1 is hinged to the front end of the horizontal plate 7, and the rear end of the grinding machine 1 is hinged to a supporting spring 6, and the other end of the supporting spring 6 is hinged to the rear end of the horizontal plate 7.

[0025] In use, as Figure 2 The buckle 5 is fixed outside the gathering pipeline 8, and the rollers 4 inside the buckle 5 are in rolling contact with the outer wall of the gathering pipeline 8.

[0026] The grinding machine 1 is elastically supported by the supporting spring 6, so that the grinding wheel 3 at the head of the grinding machine 1 is in close contact with the outer wall of the gathering pipeline 8, and then the grinding machine 1 is started to grind the coating on the outer side of the pipeline wall.

[0027] The utility model is rotated along the circumferential direction of the gathering pipeline 8 to grind and remove the coating on one round of the gathering pipeline 8.

[0028] The utility model has the advantages of simple and reasonable structure, compact equipment, high portability, high efficiency of stripping and cleaning of the anticorrosive layer by the mechanical grinding method, smooth and flat pipeline surface after cleaning, and convenient post-operation such as welding, and the utility model is safe and reliable in use without fire. Embodiment 2

[0029] This embodiment is optimized on the basis of the above-mentioned embodiments, and specifically:

[0030] As Figure 3 And Figure 4 The buckle 5 in this embodiment is basically the same as the buckle 5 in embodiment 1 in the main structure, and specifically the buckle 5 comprises an upper half ring 12 and a lower half ring 13, one end of the upper half ring 12 and the lower half ring 13 is hinged, and the other end is connected through a buckle 14.

[0031] The difference between the buckle 5 in this embodiment and the buckle 5 in embodiment 1 is that the lower half ring 13 is in a U-shaped structure, the bottom of the U-shaped structure is threadedly connected with a vertical screw rod 10, the top of the screw rod 10 is rotatably connected with a lifting frame 9, and one group of rollers 4 is distributed on the top of the lifting frame 9 and on the inner side of the upper half ring 12.

[0032] The lifting frame 9 can be lifted by rotating the screw rod 10, so that the gathering pipeline 8 with different diameters can be adapted. Embodiment 3

[0033] This embodiment is optimized on the basis of the above-mentioned embodiments, and specifically:

[0034] As Figure 4 The two ends of the lifting frame 9 are respectively slidably connected with the two sides of the U-shaped structure of the buckle 5, and the two ends are slidably connected in this way, which has higher sliding stability. Embodiment 4

[0035] This embodiment is an optimization based on the above embodiment, specifically:

[0036] like Figure 3 and Figure 4 The bottom of the lead screw 10 is equipped with a rotating handle 11. By adding the rotating handle 11, the lead screw 10 can be rotated directly without the aid of tools, making it more convenient to use.

[0037] The fastener 5 is connected to a drive rod 15 that extends outward. By adding the drive rod 15, it is easier to push the present invention to rotate circumferentially along the collection and transportation pipeline 8. Example 5

[0038] This embodiment is an optimization based on the above embodiment, specifically:

[0039] like Figures 1 to 3 The head of the grinding machine 1 is also equipped with a dust cover 2 that covers the top of the grinding wheel 3. By adding the dust cover 2, the powder particles from grinding can be prevented from being thrown at the operator, making it safer and more reliable.

[0040] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.

Claims

1. A tool for cleaning the PE anti-corrosion coating of a small-diameter single-well gathering and transportation pipeline, characterized in that: It includes a fastener and a grinding machine. The fastener has a set of rollers on its inner side for rolling contact with the outer wall of the gathering and transportation pipeline, and a horizontal plate on its outer side. The head of the grinding machine is equipped with a grinding wheel for cleaning the PE anti-corrosion layer of the gathering and transportation pipeline. The front end of the grinding machine is hinged to the front end of the horizontal plate, and the rear end of the grinding machine is hinged to a support spring. The other end of the support spring is hinged to the rear end of the horizontal plate.

2. The tool for cleaning the PE anti-corrosion coating of a small-diameter single-well gathering and transportation pipeline according to claim 1, characterized in that: The fastener includes an upper half ring and a lower half ring, with one end of the upper half ring and the lower half ring hinged together and the other end connected by a snap fastener.

3. The tool for cleaning the PE anti-corrosion coating of a small-diameter single-well gathering and transportation pipeline according to claim 2, characterized in that: The lower half ring has a U-shaped structure, and the bottom of the U-shaped structure is threaded with a vertically arranged lead screw. The top of the lead screw is rotatably connected to a lifting frame. A set of rollers are distributed on the top of the lifting frame and the inner side of the upper half ring.

4. The tool for cleaning the PE anti-corrosion coating of a small-diameter single-well gathering and transportation pipeline according to claim 3, characterized in that: The two ends of the lifting frame are slidably connected to the two sides of the U-shaped structure, respectively.

5. The tool for cleaning the PE anti-corrosion coating of a small-diameter single-well gathering and transportation pipeline according to claim 3, characterized in that: The bottom of the lead screw is equipped with a rotating handle.

6. The tool for cleaning the PE anti-corrosion coating of a small-diameter single-well gathering and transportation pipeline according to claim 1, characterized in that: The fastener is connected to a drive rod that extends outward.

7. The tool for cleaning the PE anti-corrosion coating of a small-diameter single-well gathering and transportation pipeline according to claim 1, characterized in that: The head of the grinding machine is also equipped with a dust cover that covers the top of the grinding wheel.

8. The tool for cleaning the PE anti-corrosion coating of a small-diameter single-well gathering and transportation pipeline according to claim 1, characterized in that: The grinding machine is a rechargeable mobile grinding machine.

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