Anti-corrosion spraying device for petroleum casing pipe

Abstract

The utility model provides a petroleum casing anticorrosion spraying device, which relates to the technical field of petroleum casing spraying, and comprises a paint spraying pipe and a track, the track is provided with a plurality of support frames for placing petroleum casings, and one side of the track is provided with a chute along the length direction. The petroleum casing pipe can be lifted and placed through the multiple supporting frames, the sliding block can drive the paint can and the paint spraying pipe to slide in the length direction of the petroleum casing pipe in a reciprocating mode through rotation of the lead screw, and therefore under the condition that the position of the petroleum casing pipe is not moved, anticorrosive material spraying on the surface of the petroleum casing pipe can be achieved through movement of the paint spraying pipe; site can be saved, and cost is reduced.

Description

Technical Field

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

[0002] Oil casing is a steel pipe used to support the well wall of oil and gas wells to ensure the normal operation of the entire oil well during the drilling process and after completion. After production is completed, in order to ensure that the surface of the oil casing will not be corroded by underground materials, a layer of anti-corrosion paint or coating needs to be sprayed on the surface.

[0003] Therefore, an anti-corrosion spraying device for petroleum casing has the publication number CN218690782U. During specific implementation, the telescopic motor cooperates with the horizontal movement of the shaft body to insert the two ends of the paint spraying tube into the embedded holes respectively, and then the clamping ring is inserted into the embedded hole and the two are threadedly connected to complete the fixation of the paint spraying tube. The pipe fitting to be sprayed is placed on the slide rail in the through groove. After the stepping motor is turned on, the pipe fitting is pushed horizontally by the push plate. During the process, the paint spraying tube can spray the pipe fitting with paint through multiple groups of nozzles.

[0004] However, when the existing technology is in use, the position of the paint spraying pipe remains unchanged, and the surface painting is achieved by pushing the pipe through the paint spraying pipe through the push plate. Therefore, during the painting process, the actual space required (such as a sealed paint spraying room) is twice the length of the paint spraying pipe, and the bracket supporting the pipe also needs to be lengthened to prevent the pipe from falling. Therefore, when the manufactured oil pipeline is long, when painting the pipeline surface, it is necessary to occupy a larger space and manufacture a longer bracket, which will lead to increased costs. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes an anti-corrosion spraying device for petroleum casing.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: an anti-corrosion spraying device for oil casing, including a paint spraying pipe and a track, wherein the track is provided with a plurality of support frames for placing the oil casing and a slide groove is opened on one side of the track along the length direction, a screw rod is rotatably connected in the slide groove, a slider is threadedly connected to the screw rod, one side of the slider extends outside the slide groove and is plugged into the track surface, a paint can is provided at the extension of the slider, the top edge of the slider extends outward to above the plurality of support frames and is used to fix the paint spraying pipe, and the top of the paint can is connected to a pump body for transporting paint into the paint spraying pipe.

[0007] Preferably, the surface of the track is hollowed out and embedded in the bottom edge of the support frame, and a plug-in unit for plugging into the hollowed portion of the track is provided through the surface of the support frame.

[0008] Preferably, the support frame slides along the track surface and a plurality of auxiliary wheels rotatably connected to the track surface are provided on the support frame.

[0009] Preferably, the top of the support frame is U-shaped and is used to place the oil casing. The inner bottom surface of the U-shaped part of the support frame is rotatably connected to two staggered gears. The top of the gear is fixedly connected to a rotating frame. A rubber roller for lifting the oil casing is rotatably connected to the rotating frame. The rubber roller in one of the rotating frames located at both ends of the support frame and the screw in the slide are both driven by a motor.

[0010] Preferably, the support frame is located between the two gears and is also rotatably connected to a horizontally arranged screw rod, and the screw rod on the support frame is threadedly connected to a double-sided rack that is plugged into the support frame and meshed with the two gears.

[0011] Preferably, one end of the screw rod extends outward through the support frame and is fixedly connected to a sprocket, and a chain is meshed and connected between several of the sprockets.

[0012] Preferably, an electric push rod is fixedly connected to the side of the support frame, and the telescopic end of the electric push rod is fixedly connected to a lifting frame plugged into the side of the support frame. Both ends of the lifting frame are symmetrically distributed about the sprocket on the same support frame and are slidably connected to the chain.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the utility model, a plurality of support frames and screw rods are arranged on the track. The support frames can be used to lift and place the oil casing, and the rotation of the screw rod can realize that the slider drives the paint can and the paint spray tube to slide back and forth along the length direction of the stone casing. Then, without moving the position of the oil casing, the anti-corrosion material can be sprayed on the surface of the oil casing by moving the paint spray tube, which can save space and reduce costs.

[0015] 2. In the present invention, under the transmission action of the sprocket and the chain, it is easy to realize the simultaneous rotation of the screw rods in the support frames, thereby realizing the simultaneous movement of the multiple double-sided racks, and realizing the meshing connection of the gears to drive the rotating frame and the rubber roller to rotate. By rotating the rubber roller until it is parallel to the oil casing, the contact between the oil casing and the surfaces of the two rubber rollers in the support frame is utilized. Under the action of friction, the rotation of the rubber roller can drive the oil casing to rotate, thereby realizing the automatic turning over of the oil casing, and facilitating the spray gun to spray the anti-corrosion material on the other side of the oil casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of a petroleum casing anti-corrosion spraying device proposed by the utility model;

[0017] Figure 2 This utility model proposes a petroleum casing anti-corrosion spraying device Figure 1 Schematic diagram of the cross-sectional structure;

[0018] Figure 3 This utility model proposes a petroleum casing anti-corrosion spraying device Figure 2 Schematic diagram of the cross-sectional structure;

[0019] Figure 4 for Figure 2 Front view of .

[0020] Legend: 1. Track; 2. Slide; 3. Support frame; 4. Chain; 5. Screw; 6. Slider; 7. Paint can; 8. Pump body; 9. Paint spray tube; 10. Plug-in; 11. Electric push rod; 12. Lifting frame; 13. Sprocket; 14. Rubber roller; 15. Rotating frame; 16. Gear; 17. Double-sided rack; 18. Auxiliary wheel. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] like Figure 1-4As shown, an anti-corrosion spraying device for oil casing includes a paint spraying pipe 9 and a track 1. The track 1 can be laid in a paint spraying room. A plurality of support frames 3 for placing oil casing are provided on the track 1, and a slide 2 is provided on one side of the track 1 along the length direction. A screw rod 5 is rotatably connected in the slide 2, and a slider 6 is threadedly connected to the screw rod 5. One side of the slider 6 extends to the outside of the slide 2 and is plugged into the surface of the track 1. A paint tank 7 is provided at the extension of the slider 6. The top edge of the slider 6 extends outward to above the plurality of support frames 3 and is used to fix the paint spraying pipe 9. The top of the paint tank 7 is connected to a screw rod for spraying paint. The pump body 8 for conveying paint in the tube 9, when actually in use, drives the screw rod 5 in the slide groove 2 to rotate, so that the slider 6 engaged with it slides along the length direction of the track 1 under the action of the plugging fiber of the track 1. Therefore, when the slider 6 slides, the paint can 7 set on its surface and the paint spray tube 9 connected to the slider 6 will move synchronously, and under the action of the pump body 8, the paint or preservative in the paint can 7 is sprayed along the paint spray tube 9 and acts on the surface of the oil casing supported in the several support frames 3. That is, in this solution, the oil casing does not need to be moved during spraying, so it can save space.

[0024] In addition: the surface of the track 1 is hollowed out and embedded in the bottom edge of the support frame 3. A plug-in 10 for plugging into the hollow part of the track 1 is provided on the surface of the support frame 3. The support frame 3 slides along the surface of the track 1 and a number of auxiliary wheels 18 are rotatably connected to the support frame 3 and are connected to the surface of the track 1 in a rolling manner. The auxiliary wheels 18 are used to facilitate the sliding of the support frame 3 along the surface of the track 1, and the plug-in 10 is used to penetrate the hollowing of the support frame 3 and the surface of the track 1. The corresponding number of support frames 3 can be installed on the track 1 according to the length of the stone casing, and the distance between two adjacent support frames 3 can be adjusted.

[0025] In addition, the top of the support frame 3 is U-shaped and is used to place the oil casing. The bottom surface of the U-shaped part of the support frame 3 is rotatably connected to two staggered gears 16. The top of the gear 16 is fixedly connected to a rotating frame 15. The rotating frame 15 is rotatably connected to a rubber roller 14 for lifting the oil casing. During spraying, the oil casing is located on the two rubber rollers 14 in the support frames 3, and the center lines of the oil casing and the rubber rollers 14 are vertically distributed, which makes it convenient to place one end of the oil casing on the support frame 3 at one end, and use the rotation of the rubber roller 14 to smoothly push the oil casing to move, or adjust the position of the oil casing on the support frames 3. The two sides of the U-shaped part of the support frame 3 are used to support the two sides of the oil casing, which can prevent It can prevent the oil casing from rotating, and when the rubber rollers 14 at both ends cannot rotate, it can also ensure that the oil casing will not move on several support frames 3; the rubber rollers 14 in one of the rotating frames 15 in the support frames 3 at both ends and the screw rods 5 in the slide 2 are driven by a motor, so that the rubber rollers 14 or the screw rods 5 in the slide 2 can be driven by the motor to rotate, and an additional motor can be installed on the support frame 3 to drive the screw rod 5 in the support frame 3 to rotate. The support frame 3 is located between the two gears 16 and is also rotatably connected to the horizontally arranged screw rod 5. The screw rod 5 on the support frame 3 is threadedly connected to a double-sided rack 17 that is plugged into the support frame 3 and meshed with the two gears 16. One end of the screw rod 5 passes through the support frame 3 to extend outward. It is extended and fixedly connected with a sprocket 13, and a chain 4 is meshed between several sprockets 13. The side of the support frame 3 is fixedly connected with an electric push rod 11, and the telescopic end of the electric push rod 11 is fixedly connected to a lifting frame 12 inserted into the side of the support frame 3. The two ends of the lifting frame 12 are symmetrically distributed about the sprocket 13 on the same support frame 3 and are slidably connected with the chain 4. After spraying one side of the oil casing is completed, the lifting frame 12 is lowered to both sides of the sprocket 13 stuck on the same support frame 3 by extending the electric push rod 11, which can ensure that the chain 4 and the sprocket 13 in the middle position have enough wrap angle. Therefore, when the screw rod 5 in one of the support frames 3 rotates under the drive of the motor, it will drive the sprocket 13 to rotate, and under the meshing connection of the chain 4, some other positions can be achieved. The dry sprocket 13 drives the screw rod 5 at the corresponding position to rotate, so that the screw rod 5 in the several support frames 3 used to lift the oil casing can be rotated simultaneously, thereby realizing the movement of the double-sided rack 17 connected by thread, and realizing that the two gears 16 meshing with the double-sided rack 17 drive the end face rotating frame 15 to rotate ninety degrees until it is parallel to the oil casing. At this time, the two rubber rollers 14 are symmetrically distributed on both sides of the oil casing and contact the surface of the oil casing. Therefore, the motor on one of the rotating frames 15 drives the corresponding rubber roller 14 to rotate, so that the oil casing can be driven to rotate under the action of friction, while the rubber rollers 14 at other positions rotate with the rotation of the oil casing, thereby reducing friction and ensuring that the oil casing rotates smoothly to achieve the function of turning over.

[0026] Working principle, several rubber rollers 14 as Figure 2 In the state shown, the oil casing is adjusted by sliding the displacement on the several support frames 3 by rotating the rubber roller 14. After the adjustment is completed, one of the rubber rollers 14 on the support frame 3 at one end is locked by the motor and cannot rotate, and the corresponding material is poured into the paint tank 7. The screw rod 5 in the chute 2 is rotated under the driving action of the motor, and then the slider 6 is moved back and forth along the length direction of the oil casing. During the movement, the pump body 8 transports the material in the paint tank 7 to the paint spraying pipe 9 and sprays it in the form of mist to coat one side of the oil casing. After the coating is completed and dried and cured, the screw 5 on one of the support frames 3 rotates under the drive of the motor, and the screw 5 in the support frames 3 at other positions rotates simultaneously under the meshing transmission action of the sprocket 13 and the chain 4, so that all the double-sided racks 17 can move at the same time, and the meshing gear 16 drives the rotating frame 15 and the rubber roller 14 to rotate parallel to the oil casing, and then one of the rubber rollers 14 is rotated to realize the rotation and flipping of the oil casing, and the slider 6 can be used to move back and forth again to spray the anti-corrosion material on the other side of the oil casing.

[0027] The wiring diagram of the motor and the pump body 8 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the motor and the pump body 8 are no longer explained in detail.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A petroleum casing anti-corrosion spraying device, comprising a paint spraying pipe (9), characterized in that: The invention also includes a track (1), wherein a plurality of support frames (3) for placing oil casings are provided on the track (1), and a slide groove (2) is provided on one side of the track (1) along the length direction, a screw rod (5) is rotatably connected in the slide groove (2), a slider (6) is threadedly connected on the screw rod (5), one side of the slider (6) extends to the outside of the slide groove (2) and is plugged into the surface of the track (1), a paint tank (7) is provided at the extension of the slider (6), the top edge of the slider (6) extends outward to above the plurality of support frames (3) and is used to fix a paint spraying pipe (9), and the top of the paint tank (7) is connected to a pump body (8) for conveying paint into the paint spraying pipe (9).

2. The oil casing anti-corrosion spraying device according to claim 1, characterized in that: The surface of the track (1) is hollowed out and is embedded and plugged into the bottom edge of the support frame (3); a plug-in unit (10) for plugging into the hollowed portion of the track (1) is provided through the surface of the support frame (3).

3. The oil casing anti-corrosion spraying device according to claim 2, characterized in that: The support frame (3) slides along the surface of the track (1), and a plurality of auxiliary wheels (18) are rotatably connected to the support frame (3) and are rollingly connected to the surface of the track (1).

4. The oil casing anti-corrosion spraying device according to claim 1, characterized in that: The top of the support frame (3) is U-shaped and is used to place the oil casing. The inner bottom surface of the U-shaped part of the support frame (3) is rotatably connected to two staggered gears (16). The top of the gear (16) is fixedly connected to a rotating frame (15). The rotating frame (15) is rotatably connected to a rubber roller (14) for lifting the oil casing. The rubber roller (14) in one of the rotating frames (15) in the support frame (3) at both ends and the screw rod (5) in the slide groove (2) are driven by a motor.

5. The oil casing anti-corrosion spraying device according to claim 4, characterized in that: The support frame (3) is located between the two gears (16) and is also rotatably connected to a horizontally arranged screw rod (5). The screw rod (5) on the support frame (3) is threadedly connected to a double-sided rack (17) that is plugged into the support frame (3) and meshed with the two gears (16).

6. The oil casing anti-corrosion spraying device according to claim 5, characterized in that: One end of the screw rod (5) passes through the support frame (3) and extends outwards and is fixedly connected to a sprocket (13); a plurality of the sprockets (13) are meshedly connected with chains (4).

7. The oil casing anti-corrosion spraying device according to claim 6, characterized in that: The side of the support frame (3) is fixedly connected to an electric push rod (11), and the telescopic end of the electric push rod (11) is fixedly connected to a lifting frame (12) plugged into the side of the support frame (3). The two ends of the lifting frame (12) are symmetrically distributed about a sprocket (13) on the same support frame (3) and are slidably connected to the chain (4).

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