CN117697638A - Device and method for treating inner surface of pipe for petroleum exploitation - Google Patents

Abstract

The invention provides an inner surface treatment device and method for a pipe for petroleum exploitation, comprising a spindle motor, a surface treatment structure, a propeller, a first conveying rail and a second conveying rail, wherein a rust removing assembly comprises a sand storage layer, a connecting spray disc, a disc connecting seat and a supporting spindle; the periphery of the supporting main shaft is provided with a sand blasting machine set, the outer wall of the sand blasting machine set is provided with a plurality of axial connecting seats, a plurality of sand blasting guns are movably connected to the axial connecting seats, the sand blasting guns are movably connected with the positioning rods, and sand blasting connecting pipes are arranged between the sand blasting guns and the sand blasting machine set; the anti-corrosion component is used for uniformly smearing anti-corrosion adhesive on the inner wall of the petroleum pipe, and the cleaning effect of the inner part of the pipe wall can be improved, so that the anti-corrosion coating can be better attached to the petroleum pipe wall.

Description

Device and method for treating inner surface of pipe for petroleum exploitation

Technical Field

The invention relates to the technical field of petroleum pipeline cleaning equipment, in particular to an inner surface treatment device and method for a pipe for petroleum exploitation.

Background

The petroleum exploitation pipe is generally composed of a petroleum pipeline and accessories thereof, the petroleum pipeline is a seamless steel pipe suitable for a furnace pipe and a pipeline of a petroleum refinery, the geological drilling steel pipe is a steel pipe for core drilling of a geological department, the steel pipe can be divided into a drill rod, a core pipe, a sleeve pipe, a sedimentation pipe and the like according to purposes, the cost is high, the petroleum pipeline needs to be subjected to higher anti-corrosion treatment due to the influence of underground working environment, the anti-corrosion treatment is usually carried out again by recycling, in the treatment process of the petroleum pipeline, oil dirt and attachments in the pipe wall need to be cleaned, the inner wall is usually subjected to sand washing in a sand washing mode, the sand washing difficulty in the pipe wall is high, the sand washing difficulty in the pipe wall is generally high, the sand washing efficiency is low, meanwhile, the effect cannot be controlled accurately, sand splashing can influence the actual sand washing effect due to the deflection of a manually operated sand gun, and the follow-up anti-corrosion coating cannot be effectively applied, and the use effect of the petroleum pipe is influenced.

In order to achieve the above object, the present invention provides a device and a method for treating the inner surface of a pipe for petroleum exploitation, which can solve the problems set forth in the background art.

Disclosure of Invention

The invention adopts the following technical scheme:

an inner surface treatment device of a pipe for petroleum exploitation comprises a spindle motor, a surface treatment structure, a propeller, a first conveying rail and a second conveying rail;

one end of the meter processing structure is connected with the spindle motor, the meter processing structure comprises a rust removing component and an anti-corrosion component, the rust removing component is connected with the output end of the spindle motor, the anti-corrosion component is connected with one side of the rust removing component far away from the spindle motor,

the rust removing component comprises a sand storage layer, a connecting spray disc, a disc connecting seat and a supporting main shaft,

a plurality of electric telescopic columns I are arranged between the sand storage layer and the connecting disc, a plurality of electric telescopic columns II are arranged between the disc connecting seat and the connecting disc, a plurality of axial movable ports are arranged on the outer wall of the connecting disc, and a positioning rod is arranged in each axial movable port;

the periphery of the supporting main shaft is provided with a sand blasting unit, the outer wall of the sand blasting unit is provided with a plurality of axial connecting seats, a plurality of sand blasting guns are movably connected to the axial connecting seats, the sand blasting guns are movably connected with the positioning rods, sand blasting connecting pipes are arranged between the sand blasting guns and the sand blasting unit, and anti-slip rubber ring gaskets are arranged between the sand blasting connecting pipes and the axial movable ports and used for preventing deviation; the anti-corrosion component is used for uniformly smearing anti-corrosion adhesive on the inner wall of the petroleum pipe.

Preferably, the position of the supporting main shaft is the same as that of the rotating shaft center of the main shaft motor, the sand storage layer is connected to one side, close to the main shaft motor, of the supporting main shaft, and the disc connecting seat is connected to one side, far away from the main shaft motor, of the supporting main shaft;

the output ends of the first electric telescopic column and the second electric telescopic column are connected to two sides of the connecting spray disc, a driving disc is arranged on one side of the disc connecting seat, and one side, away from the disc connecting seat, of the driving disc is connected with the anti-corrosion assembly.

Preferably, a plurality of telescopic cylinders are arranged in the driving disc, the output end of each telescopic cylinder extends out of the driving disc and is connected with a driving wheel seat, a driving wheel is arranged on the driving wheel seat, and a plurality of telescopic cylinders synchronously run.

Preferably, a lifting structure is arranged below the first conveying rail, the conveying direction of the first conveying rail and the conveying direction of the second conveying rail are positioned on the same straight line, the propeller is fixed above the first conveying rail, and the spindle motor is connected above the propeller;

the second conveying rail is provided with a positioning seat, the upper surface of the positioning seat is composed of two split symmetrical arc-shaped surfaces, and the upper surface of the arc-shaped surfaces is in direct contact with the outer wall of the oil pipe.

Preferably, the anti-corrosion component comprises a storage agent box and a mounting box, wherein the mounting box and the storage agent box are cylindrical boxes, and the mounting box is positioned at one side of the storage agent box away from the spindle motor;

the inside pressurization pump district that is equipped with of storage agent case, pressurization pump district outer wall evenly is equipped with a plurality of blocks of applying the dish, adjacent two apply and mutually fixed connection between the dish piece, singly apply the inside flexible passageway that is equipped with and communicates with outside of dish piece, flexible passageway inside activity is equipped with the steady voltage tube, the one end of steady voltage tube stretches out flexible passageway is connected with the arc and applies the dish, the arc is applied the dish and is kept away from pressurization pump district one side is equipped with porous and applies the membrane.

Preferably, a wire coiling wheel is arranged in the pressure pump area, a plurality of telescopic guide pipes are connected to the wire coiling wheel, one end of each telescopic guide pipe is connected with the pressure stabilizing pipe, and the other end of each telescopic guide pipe is connected with an output port of the pressure pump area.

Preferably, a plurality of rubber resistance loops are uniformly arranged in the pipe wall of the telescopic channel along the reverse direction of the pipeline;

one side of the pressure stabilizing tube, which is close to the pressurizing pump area, is provided with a return blocking pile with an isosceles trapezoid cross section, and the return blocking pile is matched with the return blocking ring.

Preferably, a heat preservation component is arranged between the corrosion prevention component and the rust removal component, the heat preservation component comprises a heating furnace and a blower, one side of the heating furnace, which is close to the blower, is provided with a disc-shaped diversion steel plate, the center of the diversion steel plate is provided with a raised circular table type top surface, and the top surface and the rotation axis of the blower are positioned on the same axis;

an air outlet is arranged on the outer side of the heat preservation component, and the air outlet is connected with the lowest point of the flow guide steel plate.

Preferably, the first electric telescopic column and the second electric telescopic column comprise a movable plug tube and a telescopic cylinder, the movable plug tube comprises an extension tube and a fixed tube, one end of the extension tube is fixedly connected with the disc connecting seat, the telescopic cylinder is positioned inside the movable plug tube, the output end of the telescopic cylinder extends into the extension tube, a long spring sleeve shaft is arranged in the extension tube, and the long spring sleeve shaft is positioned on the periphery of the telescopic cylinder.

An inner surface treatment method of a pipe for petroleum exploitation comprises the following steps: s1, aligning and preparing, conveying an oil pipe to a position to be processed, fixing the outer wall of the oil pipe to prevent offset, and adjusting the upper and lower positions of a first conveying rail until the device can enter the oil pipe;

s2, preheating: the pushing device enters the oil pipe and synchronously drives all the telescopic supporting cylinders until the telescopic supporting cylinders can prop against the inner wall of the oil pipe, the upper and lower positions of the first conveying rail are adjusted again, and the heat preservation assembly is preheated;

s3, sand washing; filling a sand storage layer and a storage agent tank, enabling a propulsion meter processing structure to extend into the wall of the oil pipe, adjusting the extending length of the electric telescopic column II and the electric telescopic column I, running a spindle motor at low power, synchronously starting a sand blasting unit, and slowly and continuously recycling a propeller;

s4, film coating; and (3) detecting the sand blasting effect, repeating the steps (S1-S3) if the sand blasting effect is unqualified, then running the spindle motor on the whole road, stopping running when all the porous coating films are contacted with the inner wall of the oil pipe, starting the pressurizing pump to fill the anticorrosive adhesive, and enabling the spindle motor to continuously run at low power and enabling the propeller to stretch out slowly.

Compared with the prior art, the invention has the beneficial effects that:

the invention performs rust removal and oil removal and corrosion prevention spraying on the inner wall of the petroleum pipe at one time through the surface treatment structure, and completes one-time quick paint spraying on the petroleum pipe wall;

the sand blasting machine set with the movable angle can keep the angle of the sand blasting gun for spraying Sha Shuo on the surface to be an oblique angle or a right angle all the time, so that the sand blasting machine set has the advantages that 1, the oblique Sha Shuo has a larger impact friction effect, the Sha Shuo rebound of the striking surface has a certain inhibition effect when the straight sand is impacted, and the oblique sand flow can generate a better scouring effect;

2. because sand washing is carried out on the inner part of the pipe wall, a large amount of sand of the straight sand washing is deposited to the lower part of the horizontal position, deposited sand, lime sand and the like can be attached to tar, meanwhile, the operation of a cleaning assembly is hindered, the striking surface of the straight sand washing is perpendicular to the tangent line of the pipe wall, the falling points of sand stones are distributed in a fan shape due to the perpendicular impact, the observation of the actual cleaning effect can be influenced when the sand stones fall to the cleaned part, and meanwhile, part of tar is carried back to the sand washing position;

3. the assembly capable of cleaning and spraying the inside of the pipe wall at one time is usually a unified integral assembly, sand can be adhered to a sticky dressing plate due to the fact that the spraying direction of sand stone is uncertain during sand washing, so that the subsequent spraying is affected, the adhesion effect can be greatly reduced due to oblique sand blasting, and the inner pipe wall treatment effect of the device is improved;

the invention improves the application range of a single-group meter processing component to petroleum pipelines with different radiuses by automatically rotating the popped anti-corrosion component, which is used for adapting to petroleum pipelines with different radiuses within a certain range.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a watch handling structure according to the present invention;

FIG. 2 is a diagram showing an overall construction of a watch handling structure according to the present invention;

FIG. 3 is a side view of the connection between the components of the present invention;

FIG. 4 is a cross-sectional view of the structure of the invention connecting the blast disk with the blast unit;

FIG. 5 is a cross-sectional view of the overall structure of the mounting box of the present invention;

FIG. 6 is a cross-sectional view of a thermal insulation assembly of the present invention;

fig. 7 is a cross-sectional view of the electric telescopic rod of the present invention.

In the figure: 1. a table processing structure; 2. a spindle motor; 3. a propeller; 100. a rust removing component; 200. an anti-corrosion component; 300. a thermal insulation assembly; 400. a lifting structure;

101. a sand storage layer; 102. the spray disc is connected; 103. a disc connecting seat; 104. a drive disc; 105. supporting a main shaft; 106. a sand blasting unit; 107. an electric telescopic column I; 108. an axial movable port; 109. a positioning rod; 110. a driving wheel seat; 111. an electric wheel; 112. a telescopic cylinder; 113. a sand blasting gun; 115. an axial connecting seat; 117. a sand blasting connecting pipe; 118. an anti-slip rubber pad; 119. a first conveying rail; 120. a second conveying rail; 121. a positioning seat; 122. a long spring sleeve shaft; 123. an electric telescopic column II;

201. a storage tank; 202. a mounting box; 203. a booster pump area; 204. a compress disc block; 205. a telescoping passage; 206. a voltage stabilizing tube; 207. an arc compress disc; 208. a porous dressing; 209. a reel; 210. a telescoping catheter; 211. a loop is blocked; 212. a return blocking pile;

301. a heating furnace; 302. a blower; 303. a diversion steel plate; 304. an air outlet;

401. a movable plug tube; 402. a telescopic cylinder; 403. a protruding tube; 404. the tube is fixed.

Detailed Description

In order that the invention may be more fully understood, a more particular description of the invention will be rendered by reference to the appended drawings, in which several embodiments of the invention are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in this description of the invention are for the purpose of describing particular embodiments only and are not intended to be limiting of the invention, with the term "and/or" as used herein including any and all combinations of one or more of the associated listed items.

The present invention will be described in further detail with reference to the accompanying drawings.

In one embodiment of the invention: 1-7, including a spindle motor 2, a table processing structure 1, a pusher 3, a first conveying rail 119, and a second conveying rail 120; one end of the table processing structure 1 is connected with the spindle motor 2, the table processing structure 1 comprises a rust removing component 100 and an anti-corrosion component 200, the rust removing component 100 is connected with the output end of the spindle motor 2, the anti-corrosion component 200 is connected with one side of the rust removing component 100 far away from the spindle motor 2,

the rust removing assembly 100 comprises a sand storage layer 101, a connecting spray disc 102, a disc connecting seat 103 and a supporting main shaft 105, wherein a plurality of first electric telescopic columns 107 are arranged between the sand storage layer 101 and the connecting disc, a plurality of second electric telescopic columns 123 are arranged between the disc connecting seat 103 and the connecting disc, a plurality of axial movable ports 108 are arranged on the outer wall of the connecting disc, and a positioning rod 109 is arranged in each axial movable port 108;

the circumference of the supporting main shaft 105 is provided with a sand blasting unit 106, the outer wall of the sand blasting unit 106 is provided with a plurality of axial connecting seats 115, a plurality of sand blasting guns 113 are movably connected to the axial connecting seats 115, the sand blasting guns 113 are movably connected with the positioning rods 109, a sand blasting connecting pipe 117 is arranged between the sand blasting guns 113 and the sand blasting unit 106, and an anti-slip rubber gasket is arranged between the sand blasting connecting pipe 117 and the axial movable port 108 for preventing deflection; the anti-corrosion component 200 is used for uniformly coating anti-corrosion adhesive on the inner wall of the petroleum pipe.

The axial connecting seat 115 is intersected with the rotation position of the positioning rod 109, the sand blasting gun 113 is positioned in the middle of the axial connecting seat 115 and is connected with the positioning rod 109 in a rotating mode, the front end of the sand blasting gun 113 is connected with the positioning rod 109 in a sliding mode, the sand storage layer 101, the driving disc 104 and the connecting spray disc 102 are movably adjusted in the axial direction of the main shaft, the sand blasting gun 113 is suitable for the sliding connection angle of the positioning rod 109, the sand blasting gun 113 at the position between the connecting disc and the sand blasting unit 106 is not directly connected, the movable range between the sand storage layer 101 and the sand blasting machine set is adjusted through the first electric telescopic column 107 and the second electric telescopic column 123, and when the first telescopic column stretches smaller than the second telescopic column, the inclined cutting direction of sand blasting faces the main shaft motor 2, so that the adhesion influence on deposit of a dressing plate can be reduced.

The anti-corrosion component 200 is used for uniformly coating anti-corrosion adhesive on the inner wall of the petroleum pipe, and has the effect of adapting to the radius and the edge distance.

Referring to fig. 1-3, the position of the supporting spindle 105 is the same as that of the rotation axis of the spindle motor 2, the sand storage layer 101 is connected to the side of the supporting spindle 105 close to the spindle motor 2, and the disc connection base 103 is connected to the side of the supporting spindle 105 far from the spindle motor 2;

the output end of electric telescopic column one 107 and electric telescopic column two 123 all connect in connect spray disc 102 both sides, disc connecting seat 103 one side is equipped with drive disc 104, drive disc 104 keep away from one side of disc connecting seat 103 with anticorrosive subassembly 200 is connected, and integrated structure that integral type can be better carries out sandblast and retarder forward movement when realizing rotatory, can make the negative force that comes from the inner wall when rotating reduce.

Referring to fig. 2-5, a plurality of telescopic cylinders 112 are disposed in the driving disc 104, the output end of each telescopic cylinder 112 extends out of the driving disc 104 to be connected with a driving wheel seat 110, a driving wheel 111 is disposed on the driving wheel seat 110, and a plurality of telescopic cylinders 112 synchronously run, and simultaneously extend out of the driving wheel seat, so that the driving wheel seat is convenient for adapting to oil pipes with different radius sizes due to initial radial positioning.

Referring to fig. 3, a lifting structure 400 is disposed below the first conveying rail 119, the conveying directions of the first conveying rail 119 and the second conveying rail 120 are on the same line, the pusher 3 is fixed above the first conveying rail 119, and the spindle motor 2 is connected above the pusher 3;

the second conveying rail 120 is provided with a positioning seat 121, the upper surface of the positioning seat 121 is composed of two split symmetrical arc surfaces, and the upper surface of the arc surfaces is in direct contact with the outer wall of the oil pipe.

In another embodiment of the invention: referring to fig. 1-3, the anti-corrosion assembly 200 includes a storage tank 201 and a mounting tank 202, wherein the mounting tank 202 and the storage tank 201 are cylindrical tanks, and the mounting tank 202 is located at a side of the storage tank 201 away from the spindle motor 2;

a pressurizing pump area 203 is arranged in the agent storage box 201, a plurality of applying disc blocks 204 are uniformly arranged on the outer wall of the pressurizing pump area 203, two adjacent applying disc blocks 204 are fixedly connected with each other, a telescopic channel 205 communicated with the outside is arranged in each applying disc block 204, a pressure stabilizing tube 206 is movably arranged in each telescopic channel 205, one end of each pressure stabilizing tube 206 extends out of each telescopic channel 205 to be connected with an arc applying disc 207, and a porous applying film 208 is arranged on one side, far away from the pressurizing pump area 203, of each arc applying disc 207;

the pressure pump area 203 is internally provided with a coiling wheel 209, the coiling wheel 209 is connected with a plurality of telescopic guide pipes 210, one end of each telescopic guide pipe 210 is connected with the pressure stabilizing pipe 206, and the other end of each telescopic guide pipe 210 is connected with an output port of the pressure pump area 203.

A plurality of rubber resistance loops 211 are uniformly arranged inside the pipe wall of the telescopic channel 205 along the reverse direction of the pipeline;

a return blocking pile 212 with an isosceles trapezoid cross section is arranged on one side, close to the booster pump area 203, of the pressure stabilizing tube 206, and the return blocking pile 212 and the return blocking ring 211 are matched with each other;

in yet another embodiment of the present invention: referring to fig. 1-3 and fig. 6, a heat preservation assembly 300 is disposed between the corrosion protection assembly 200 and the rust removal assembly 100, the heat preservation assembly 300 includes a heating furnace 301 and a blower 302, a disc-shaped diversion steel plate 303 is disposed on one side of the heating furnace 301 close to the blower 302, a raised circular table top surface is disposed at the center of the diversion steel plate 303, and the top surface and the rotation axis of the blower 302 are located on the same axis; the outside of the heat preservation component 300 is provided with an air outlet 304, the air outlet 304 is connected with the lowest point of the flow guiding steel plate 303, the heat preservation component 300 blows generated hot air flow to the surface of the pipe wall after spraying, so that the residual organic solvent in the pipe wall can be assisted to be heated for dissolution and softening, and the difficulty of sand washing in the later step can be reduced.

The electric telescopic column I107 and the electric telescopic column II 123 respectively comprise a movable plug pipe 401 and a telescopic cylinder 402, the movable plug pipe 401 comprises an extension pipe 403 and a fixed pipe 404, one end of the extension pipe 403 is fixedly connected with the disc connecting seat 103, the telescopic cylinder 402 is positioned inside the movable plug pipe 401, the output end of the telescopic cylinder 402 extends into the extension pipe 403, a long spring sleeve shaft 122 is arranged in the extension pipe 403, the long spring sleeve shaft 122 is positioned on the peripheral side of the telescopic cylinder 402, and the arrangement of the long spring sleeve shaft 122 can adapt to the condition that the coordination synchronization between two electric telescopic rods is not completely unified and is used for providing a certain buffer effect, and the mode directly damages the sand blasting gun 113.

The treatment method of the invention comprises the following steps: s1, aligning and preparing, conveying an oil pipe to a position to be processed, fixing the outer wall of the oil pipe to prevent offset, and adjusting the upper and lower positions of a first conveying rail 119 until the device can enter the oil pipe;

s2, preheating: the pushing device enters the oil pipe, all the telescopic supporting cylinders are synchronously driven until the telescopic supporting cylinders can prop against the inner wall of the oil pipe, the upper and lower positions of the first conveying rail 119 are adjusted again, and the heat preservation assembly 300 is preheated;

s3, sand washing; filling a sand storage layer 101 and a storage agent tank 201, enabling a propulsion meter processing structure 1 to extend into the wall of an oil pipe, adjusting the extending lengths of a second electric telescopic column 123 and a first electric telescopic column 107, running a spindle motor 2 at low power, synchronously starting a sand blasting unit 106, and slowly and continuously recycling a propeller 3;

s4, film coating; and (3) detecting the sand blasting effect, repeating the steps (S1-S3) if the sand blasting effect is unqualified, then running the spindle motor 2 on the whole road, stopping running when all the porous coating films 208 are contacted with the inner wall of the oil pipe, starting the pressurizing pump to fill the anticorrosive adhesive, and continuously running the spindle motor 2 at low power and slowly extending the propeller 3.

While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the embodiments described above, but is intended to be within the scope of the invention, as long as such insubstantial modifications are made by the method concepts and technical solutions of the invention, or the concepts and technical solutions of the invention are applied directly to other occasions without any modifications.

Claims (10)

1. An internal surface treatment device of a pipe for petroleum exploitation is characterized in that: comprises a spindle motor (2), a meter processing structure (1), a propeller (3), a first conveying rail (119) and a second conveying rail (120);

one end of the table processing structure (1) is connected with the spindle motor (2), the table processing structure (1) comprises a rust removing component (100) and an anti-corrosion component (200), the rust removing component (100) is connected with the output end of the spindle motor (2), and the anti-corrosion component (200) is connected to one side, far away from the spindle motor (2), of the rust removing component (100);

the rust removing component (100) comprises a sand storage layer (101), a connecting spray disc (102), a disc connecting seat (103) and a supporting main shaft (105),

a plurality of electric telescopic columns I (107) are arranged between the sand storage layer (101) and the connecting disc, a plurality of electric telescopic columns II (123) are arranged between the disc connecting seat (103) and the connecting disc, a plurality of axial movable ports (108) are arranged on the outer wall of the connecting disc, and a positioning rod (109) is arranged in each axial movable port (108);

the sand blasting machine comprises a support main shaft (105), and is characterized in that a sand blasting machine set (106) is arranged on the periphery of the support main shaft (105), a plurality of axial connecting seats (115) are arranged on the outer wall of the sand blasting machine set (106), a plurality of sand blasting guns (113) are movably connected to the axial connecting seats (115), the sand blasting guns (113) are movably connected with the positioning rods (109), and sand blasting connecting pipes (117) are arranged between the sand blasting guns (113) and the sand blasting machine set (106); the anti-corrosion component (200) is used for uniformly smearing anti-corrosion adhesive on the inner wall of the petroleum pipe.

2. An apparatus for treating the inner surface of a pipe for oil production according to claim 1, wherein: the support main shaft (105) and the main shaft motor (2) are the same in rotation axis, the sand storage layer (101) is connected to one side, close to the main shaft motor (2), of the support main shaft (105), and the disc connecting seat (103) is connected to one side, far away from the main shaft motor (2), of the support main shaft (105);

the output ends of the first electric telescopic column (107) and the second electric telescopic column (123) are connected to two sides of the connecting spray disc (102), a driving disc (104) is arranged on one side of the disc connecting seat (103), and one side, away from the disc connecting seat (103), of the driving disc (104) is connected with the anti-corrosion assembly (200).

3. An apparatus for treating the inner surface of a pipe for oil production according to claim 2, wherein: the driving disc (104) is internally provided with a plurality of telescopic cylinders (112), the output end of each telescopic cylinder (112) extends out of the driving disc (104) and is connected with a driving wheel seat (110), the driving wheel seat (110) is provided with a motor wheel (111), and a plurality of telescopic cylinders (112) synchronously run.

4. An apparatus for treating the inner surface of a pipe for oil production according to claim 1, wherein: a lifting structure (400) is arranged below the first conveying rail (119), the conveying direction of the first conveying rail (119) and the conveying direction of the second conveying rail (120) are positioned on the same straight line, the propeller (3) is fixed above the first conveying rail (119), and the spindle motor (2) is connected above the propeller (3);

the second conveying rail (120) is provided with a positioning seat (121), the upper surface of the positioning seat (121) is formed by two split symmetrical arc surfaces, and the upper surface of the arc surface is in direct contact with the outer wall of the oil pipe.

5. An apparatus for treating the inner surface of a pipe for oil production according to claim 1, wherein: the anti-corrosion assembly (200) comprises a storage agent box (201) and a mounting box (202), wherein the mounting box (202) and the storage agent box (201) are cylindrical boxes, and the mounting box (202) is positioned at one side, far away from the spindle motor (2), of the storage agent box (201);

the inside pressurization pump district (203) that is equipped with of reservoir case (201), pressurization pump district (203) outer wall evenly is equipped with a plurality of application dish piece (204), adjacent two apply and mutually fixed connection between dish piece (204), singly apply inside flexible passageway (205) that are equipped with and outside intercommunication of dish piece (204), flexible passageway (205) inside activity is equipped with steady voltage tube (206), the one end of steady voltage tube (206) stretches out flexible passageway (205) are connected with arc and apply dish (207), arc is applied a dish (207) and is kept away from pressurization pump district (203) one side is equipped with porous application membrane (208).

6. An apparatus for treating the inner surface of a pipe for oil production according to claim 5, wherein: the pressure pump area (203) is internally provided with a winding wheel (209), the winding wheel (209) is connected with a plurality of telescopic guide pipes (210), one end of each telescopic guide pipe (210) is connected with the pressure stabilizing tube (206), and the other end of each telescopic guide pipe is connected with an output port of the pressure pump area (203).

7. The apparatus for treating the inner surface of a pipe for oil production according to claim 6, wherein: a plurality of rubber resistance loops (211) are uniformly arranged in the pipe wall of the telescopic channel (205) along the reverse direction of the pipeline;

one side of the pressure stabilizing tube (206) close to the pressurizing pump area (203) is provided with a return blocking pile (212) with an isosceles trapezoid cross section, and the return blocking pile (212) and the return blocking ring (211) are matched with each other.

8. An apparatus for treating the inner surface of a pipe for oil production according to claim 7, wherein: a heat preservation component (300) is arranged between the anti-corrosion component (200) and the rust removal component (100), the heat preservation component (300) comprises a heating furnace (301) and a blower (302), one side of the heating furnace (301) close to the blower (302) is provided with a disc-shaped diversion steel plate (303), the center of the diversion steel plate (303) is provided with a raised circular table top surface, and the top surface and the rotation axis of the blower (302) are positioned on the same axis;

an air outlet (304) is arranged on the outer side of the heat preservation assembly (300), and the air outlet (304) is connected with the lowest point of the flow guide steel plate (303).

9. An apparatus for treating the inner surface of a pipe for oil production according to claim 2, wherein: the electric telescopic column I (107) and the electric telescopic column II (123) comprise a movable plug tube (401) and a telescopic cylinder (402), the movable plug tube (401) comprises an extension tube (403) and a fixed tube (404), one end of the extension tube (403) is fixedly connected with the disc connecting seat (103), the telescopic cylinder (402) is located inside the movable plug tube (401), the output end of the telescopic cylinder (402) extends into the extension tube (403), a long spring sleeve shaft (122) is arranged in the extension tube (403), and the long spring sleeve shaft (122) is located on the periphery of the telescopic cylinder (402).

10. A method for treating the inner surface of a pipe for oil exploitation using the apparatus for treating the inner surface of a pipe for oil exploitation according to any one of claims 1 to 9, comprising the steps of:

s1, aligning and preparing, conveying an oil pipe to a position to be processed, fixing the outer wall of the oil pipe to prevent offset, and adjusting the upper and lower positions of a first conveying rail (119) until the device can enter the oil pipe;

s2, preheating: the pushing device enters the oil pipe, all the telescopic supporting cylinders are synchronously driven until the telescopic supporting cylinders can prop against the inner wall of the oil pipe, the upper and lower positions of the first conveying rail (119) are adjusted again, and the heat preservation assembly (300) is preheated;

s3, sand washing; filling a sand storage layer and a storage agent tank (201), enabling a propulsion meter processing structure (1) to extend into the wall of an oil pipe, adjusting the extending length of a second electric telescopic column (123) and a first electric telescopic column (107), running a spindle motor (2) at low power, synchronously starting a sand blasting unit (106), and enabling a propeller (3) to continuously recover at retarded speed;

s4, film coating; and (3) detecting the sand blasting effect, repeating the steps (S1-S3) if the sand blasting effect is unqualified, then running the spindle motor (2) on the whole road, stopping running when all the porous coating films (208) are contacted with the inner wall of the oil pipe, starting the pressurizing pump to fill the anticorrosive adhesive, continuously running the spindle motor (2) at low power, and slowly extending the propeller (3).