Petroleum delivery pipeline heat preservation processing equipment and technology

Abstract

The invention discloses petroleum conveying pipeline heat preservation machining equipment and technology, and relates to the technical field of pipeline heat preservation machining, the petroleum conveying pipeline heat preservation machining equipment comprises a shell and a third motor, a fixing rod is fixedly connected to the inner wall of the shell, a clamping mechanism is arranged on the outer wall of the fixing rod, and the clamping mechanism comprises a fixing plate, so that when a heat preservation coating is smeared on a pipeline, the fixing plate is fixed to the shell; and pipelines of different models and sizes can be clamped, a cleaning mechanism is arranged on the side wall of a fixing plate so that the outer wall of the pipeline can be cleaned in advance when the pipeline is coated with a heat preservation coating, and a coating mechanism is arranged at the top of a fifth gear so that the surface of the pipeline can be coated with the heat preservation coating when the pipeline is machined. According to the heat preservation machining equipment for the petroleum conveying pipeline, the clamping mechanisms on the two sides of the equipment are used for clamping petroleum pipelines of different models and sizes, the application range is wider, in the machining process, the pipelines can be automatically conveyed, and the labor intensity of workers is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline insulation processing, in particular to a kind of oil pipeline insulation processing equipment and process. Background Art

[0002] Oil, one of the main objects of geological exploration, is a viscous, dark brown liquid. Oil is stored in some areas of the upper crust. The main components are a mixture of various alkanes, cycloalkanes, and aromatic hydrocarbons. In the actual development of my country, petrochemical industry is a basic industry. After oil is extracted, it must be transported to the corresponding processing department to be better utilized. Among them, the oil pipeline for transporting oil is an indispensable equipment. Pipeline oil transportation has the characteristics of large transportation volume, good airtightness, low cost and high safety factor. During the oil transportation process, if the temperature of the oil pipeline is too low, the flow resistance of the oil will increase significantly, which often causes difficulties in oil transportation. However, the pipeline often suffers from corrosion and poor thermal insulation performance. In order to improve the efficiency and safety of the oil pipeline, it is necessary to use anti-corrosion and thermal insulation technology on the oil pipeline. Generally, thermal insulation coating is applied on the outside of the pipeline to insulate the pipeline to extend the service life of the pipeline and the transportation effect.

[0003] Moreover, when dealing with pipes of various sizes, the thermal insulation coating is generally applied manually, and the surface of the pipe needs to be cleaned before the coating work, resulting in excessive workload for the staff and low work efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a thermal insulation processing equipment for oil pipelines to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an oil pipeline insulation processing equipment, comprising a housing and a third motor, the inner wall of the housing is fixedly connected with a fixing rod, the outer wall of the fixing rod is provided with a clamping mechanism, and the output shaft of the third motor is fixedly connected with a fifth gear; The clamping mechanism includes a fixing plate, so that when the thermal insulation coating is applied to the pipeline, pipelines of different models and sizes can be clamped; The side wall of the fixed plate is provided with a cleaning mechanism so that the outer wall of the pipeline can be cleaned in advance when the thermal insulation coating is applied to the pipeline; A coating mechanism is provided on the top of the fifth gear so that thermal insulation coating can be applied to the surface of the pipeline when the pipeline is processed.

[0006] Preferably, a first tooth groove is formed on the side wall of the sliding plate, and the inner wall of the first tooth groove is matched and meshed with the first gear, the center of the first gear is fixedly connected to a connecting rod, and the outer wall of the connecting rod is fixedly connected to a second gear, the inner wall of the gear teeth of the second gear is matched and meshed with a first gear ring, and the inner wall of the gear teeth of the first gear ring is matched and meshed with a third gear, a first motor is fixedly installed on the side wall of the sliding plate, and the output shaft of the first motor is fixedly connected to a clamping wheel, and one end of the fixed plate is fixedly connected to the side wall of the sliding plate.

[0007] Preferably, the bottom of the sliding plate is slidably connected to the outer wall of the fixing rod, a slot is penetrated through the inner wall of the shell, and the outer wall of the sliding plate is slidably connected to the inner wall of the slot.

[0008] Preferably, the cleaning mechanism comprises a first connecting ring and a second connecting ring, the side wall of the first connecting ring is provided with a circular groove, and the inner wall of the circular groove is fixedly connected to the limiting rod, the inner wall of the circular groove is slidably connected to the limiting ring, and the outer wall of the limiting ring is fixedly connected to a convex plate, the side of the convex plate close to the limiting rod is fixedly connected to a first spring, and the end of the first spring away from the convex plate is fixedly connected to the inner wall of the circular groove, the convex plate is slidably connected to the outer wall of the limiting rod, the outer wall of the second connecting ring is provided with a through hole, and the inner wall of the through hole is slidably connected to a sliding column, an inner cavity is provided inside the sliding column, and the inner wall of the inner cavity is slidably connected to A sliding rod is connected, and a second spring is fixedly connected to the bottom of the sliding rod, an end of the second spring away from the sliding rod is fixedly connected to the bottom of the inner cavity, and an end of the sliding rod away from the second spring is fixedly connected to a cleaning brush head, an end of the sliding column away from the cleaning brush head is fixedly connected to an extrusion block, and a third spring is fixedly connected to the top of the extrusion block at a position corresponding to the outer wall of the sliding column, the other end of the third spring is fixedly connected to the outer wall of the second connecting ring, a groove is provided on the outer wall of the sliding column, and the inner wall of the groove is slidably connected to the outer wall of the limiting ring, and a second tooth groove is provided on the outer wall of the second connecting ring.

[0009] Preferably, a second motor is fixedly mounted on the side wall of the first connecting ring, and an output shaft of the second motor is fixedly connected to the center of the side wall of the third gear, and an outer wall of the extrusion block corresponds to the side wall of the fixing plate.

[0010] Preferably, the coating mechanism includes a material storage ring and a second gear ring, and a material storage chamber is opened inside the material storage ring, the inner wall of the material storage chamber is fixedly connected with a connecting tube, and one end of the connecting tube is fixedly connected with an coating head, the side wall of the coating head is fixedly connected with a one-way tube, and the end of the connecting tube away from the coating head is fixedly connected with an airbag.

[0011] Preferably, a protrusion is fixedly connected to the interior of the second gear ring, and an outer wall of the protrusion corresponds to an outer wall of the airbag.

[0012] Preferably, the side wall of the storage ring is rotatably connected to a fourth gear, and the inner wall of the gear teeth of the fourth gear matches and meshes with the internal gear teeth of the second gear ring, the inner wall of the second tooth groove matches and meshes with the inner wall of the gear teeth of the fourth gear, the bottom of the outer shell is fixedly connected to a base, and the bottom of the third motor is fixedly connected to the inside of the base.

[0013] The present invention also provides a thermal insulation process for a petroleum pipeline, comprising the following steps: Pipe clamping: The third gear and the first gear cooperate to drive the sliding plate to slide on the outer wall of the fixed rod. The sliding plate is limited by the slot and the fixed rod so that it will not deviate. After the three sliding plates slide to a certain distance, the outer walls of the three clamping wheels contact the outer wall of the pipe at the same time, and the pipe can be clamped at this time. Outer wall cleaning: Two fourth gears are connected through the rotation of the side wall of the storage ring, which can drive the second gear ring to rotate and keep balance at the same time. Then the fourth gear will drive the second tooth groove inside to rotate, and then the second tooth groove will drive the sliding column to move through the through hole. During the rotation process, the cleaning brush head will grind and clean the outer wall of the pipe; Surface coating: The third motor is driven to drive the fifth gear of the output shaft to rotate, and then the fifth gear will drive the protrusion to rotate through the second gear ring. During the process, the airbag will be squeezed, and after being squeezed, the inside of the coating head will be squeezed, and then the paint inside the coating head will be sprayed out to the pipe surface through the port of the coating head.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Before processing the pipeline, the clamping mechanisms on both sides of the equipment can be used to clamp various types and sizes of oil pipelines, which has a wider range of applications. During the processing, the pipeline can be automatically transported, effectively reducing the intensity of manual labor.

[0015] 2. Before coating the pipe, the second connecting ring can be used to drive the sliding column to rotate, so that the extrusion block rests on the pipe surface and rotates around the pipe, thereby automatically polishing the pipe surface and improving the effect of subsequent coating of thermal insulation paint.

[0016] 3. When processing the pipeline, the rotation of the second gear ring can drive the protrusion to squeeze the airbag, so that the paint inside the coating head is sprayed onto the pipeline surface. By setting up multiple coating heads to surround the outer wall of the pipeline, the paint can be more evenly covered on the outer wall of the pipeline. The pipeline surface is covered with thermal insulation paint, which effectively improves the service life and transportation effect of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a heat preservation process flow chart of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is an exploded view of the local structure of the present invention; Figure 4 It is a schematic diagram of the local structure of the present invention; Figure 5 It is a structural exploded diagram of the clamping mechanism of the present invention; Figure 6 It is a structural schematic diagram of the clamping mechanism of the present invention; Figure 7 It is a structural cross-sectional view of the coating mechanism of the present invention; Figure 8 It is a structural exploded diagram of the cleaning mechanism of the present invention; Fig. 9 For the present invention Figure 8 Enlarged cross-sectional view at point A.

[0018] In the figure: 1, housing; 2, clamping mechanism; 201, sliding plate; 202, first tooth groove; 203, first gear; 204, connecting rod; 205, second gear; 206, first gear ring; 207, third gear; 208, clamping wheel; 209, first motor; 210, fixing plate; 3, cleaning mechanism; 301, first connecting ring; 302, circular groove; 303, limiting rod; 304, limiting ring; 305, convex plate; 306, first spring; 307, second connecting ring; 308, through hole; 309, sliding column; 310, inner cavity; 311, sliding rod; 312, second spring; 313, cleaning brush head; 314, extrusion block; 315, third spring; 316, groove; 317, second tooth groove; 4, fourth gear; 5, coating mechanism; 501, storage ring; 502, storage chamber; 503, connecting tube; 504, coating head; 505, one-way tube; 506, air bag; 507, second tooth ring; 508, bump; 6, slot; 7, fixing rod; 8, second motor; 9, base; 10, third motor; 11, fifth gear. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] For example, see Figure 1-9 The present invention provides a thermal insulation processing device for oil pipelines, comprising a housing 1 and a third motor 10, wherein a fixing rod 7 is fixedly connected to the inner wall of the housing 1, a clamping mechanism 2 is arranged on the outer wall of the fixing rod 7, and a fifth gear 11 is fixedly connected to the output shaft of the third motor 10; The clamping mechanism 2 includes a fixed plate 210, and a coating mechanism 5 is arranged on the top of the fifth gear 11. Furthermore, a first tooth groove 202 is opened on the side wall of the sliding plate 201, and the inner wall of the first tooth groove 202 matches and meshes with the first gear 203. The center of the first gear 203 is fixedly connected with a connecting rod 204, and the outer wall of the connecting rod 204 is fixedly connected with a second gear 205, and the inner wall of the gear teeth of the second gear 205 matches and meshes with a first gear ring 206, and the inner wall of the gear teeth of the first gear ring 206 matches and meshes with a third gear 207. A first motor 209 is fixedly installed on the side wall of the sliding plate 201, and the output shaft of the first motor 209 is fixedly connected with a clamping wheel 208. One end of the fixed plate 210 is fixedly connected to the side wall of the sliding plate 201. The coating mechanism 5 is arranged on the side wall of the sliding plate 201. The structure 5 includes a storage ring 501 and a second gear ring 507, and a storage chamber 502 is opened inside the storage ring 501, the inner wall of the storage chamber 502 is fixedly connected with a connecting tube 503, and one end of the connecting tube 503 is fixedly connected with a coating head 504, and the side wall of the coating head 504 is fixedly connected with a one-way tube 505, and the end of the connecting tube 503 away from the coating head 504 is fixedly connected with an air bag 506, and the inside of the second gear ring 507 is fixedly connected with a protrusion 508, and the outer wall of the protrusion 508 corresponds to the outer wall of the air bag 506, the side wall of the first connecting ring 301 is fixedly installed with a second motor 8, and the output shaft of the second motor 8 is fixedly connected to the center of the side wall of the third gear 207, and the outer wall of the extrusion block 314 corresponds to the side wall of the fixed plate 210; In this embodiment, in order to improve the efficiency and safety of the oil pipeline, it is necessary to use insulation technology for the oil pipeline. At this time, the clamping mechanism 2 is required to clamp pipes of various models and sizes; First, move the pipe to the inner side of the shell 1, and make the outer side of the pipe contact the clamping wheel 208, then start the second motor 8, and then the second motor 8 will drive the third gear 207 of the output shaft to rotate, and then the third gear 207 will drive the first gear ring 206 matched with it to rotate, and at the same time, the first gear ring 206 will drive the second gear 205 to rotate. Since the connecting rod 204 is rotatably connected to the inside of the shell 1, the second gear 205 will drive the first gear 203 to rotate synchronously through the connecting rod 204. The bottom of the sliding plate 201 is slidably connected to the outer wall of the fixing rod 7. The inner wall of the shell 1 is penetrated with a slot 6, and the outer wall of the sliding plate 201 is slidably connected to the inner wall of the slot 6. Then the first gear 2 03 The sliding plate 201 is driven to slide on the outside of the fixed rod 7 through the first tooth groove 202, and the outer wall of the sliding plate 201 will slide inside the slot 6. The sliding plate 201 is limited by the slot 6 and the fixed rod 7 so that it will not deviate. After that, after the three sliding plates 201 slide to a certain distance, the outer walls of the three clamping wheels 208 are simultaneously in contact with the outer wall of the pipe. At this time, the pipe can be clamped. Then, the first motor 209 can be started to drive the clamping wheel 208 to rotate. The rotation of the three clamping wheels 208 can drive the clamped pipe to move. Clamping mechanisms 2 are provided on both sides of the equipment, one side is the pipe processing entrance, and the other side is the pipe processing exit. The clamping mechanisms 2 on both sides can keep the pipe balanced. Afterwards, the thermal insulation coating can be applied to the pipeline through the coating mechanism 5. First, the coating is added to the storage chamber 502, and then the coating is passed through the one-way tube 505 to the coating head 504. Since a one-way flow valve is provided in the one-way tube 505, the coating can only be applied to the coating head 504 from the storage chamber 502. During the processing of the pipeline, the third motor 10 is synchronously driven to drive the fifth gear 11 of the output shaft to rotate, and then the fifth gear 11 drives the second gear ring 507 that is matched with its gear teeth to rotate. By providing a protrusion 508 on the inner wall of the second gear ring 507, during the process of the second gear ring 507 driving the protrusion 508 to rotate, the protrusion 508 will squeeze the airbag 506, and after the airbag 506 is squeezed, it will squeeze the inside of the coating head 504, and then the coating inside the coating head 504 will be sprayed onto the pipeline surface through the port of the coating head 504; As described above, the clamping mechanisms 2 on both sides of the equipment can be used to clamp various oil pipelines of different models and sizes, and the application range is wider. During the processing, the pipeline can be automatically transported, effectively reducing the intensity of manual labor; Afterwards, the rotation of the second gear ring 507 can drive the protrusion 508 to squeeze the airbag 506, so that the paint inside the coating head 504 is sprayed onto the surface of the pipe. By setting up multiple coating heads 504 to surround the outer wall of the pipe, the paint can be more evenly covered on the outer wall of the pipe. The surface of the pipe is covered with thermal insulation paint, which effectively improves the service life and transportation effect of the pipe.

[0021] Embodiment 2: Based on the above embodiment, a cleaning mechanism 3 is provided on the side wall of the fixing plate 210 .

[0022] Furthermore, the cleaning mechanism 3 includes a first connecting ring 301 and a second connecting ring 307, a side wall of the first connecting ring 301 is provided with a circular groove 302, and the inner wall of the circular groove 302 is fixedly connected to the limiting rod 303, the inner wall of the circular groove 302 is slidably connected to the limiting ring 304, and the outer wall of the limiting ring 304 is fixedly connected to a convex plate 305, a side of the convex plate 305 close to the limiting rod 303 is fixedly connected to a first spring 306, and an end of the first spring 306 away from the convex plate 305 is fixedly connected to the inner wall of the circular groove 302, the convex plate 305 is slidably connected to the outer wall of the limiting rod 303, a through hole 308 is penetrated through the outer wall of the second connecting ring 307, and a sliding column 309 is slidably connected to the inner wall of the through hole 308, an inner cavity 310 is provided inside the sliding column 309, and the inner cavity 310 The wall is slidably connected with a sliding rod 311, and the bottom of the sliding rod 311 is fixedly connected with a second spring 312, the end of the second spring 312 away from the sliding rod 311 is fixedly connected to the bottom of the inner cavity 310, and the end of the sliding rod 311 away from the second spring 312 is fixedly connected to a cleaning brush head 313, the end of the sliding column 309 away from the cleaning brush head 313 is fixedly connected with an extrusion block 314, and the top of the extrusion block 314 is fixedly connected with a third spring 315 at a position corresponding to the outer wall of the sliding column 309, the other end of the third spring 315 is fixedly connected to the outer wall of the second connecting ring 307, the outer wall of the sliding column 309 is provided with a groove 316, and the inner wall of the groove 316 is slidably connected to the outer wall of the limit ring 304, and the outer wall of the second connecting ring 307 is provided with a second tooth groove 317; In this embodiment, when the pipe is clamped, the sliding plate 201 slides to drive the fixed plate 210 to move, and then the fixed plate 210 will squeeze the extrusion block 314 on its surface during the movement, and then the extrusion block 314 will drive the sliding column 309 to slide on the inner wall of the through hole 308 when it is squeezed. During the sliding process of the sliding column 309, since the groove 316 and the side corresponding to the stop ring 304 are set as an inclined surface, the stop ring 304 will be squeezed to slide into the inner wall of the circular groove 302. Then, after the sliding plate 201 has moved, the sliding column 309 also stops sliding. At this time, the sliding column 309 will be at the same height as the clamping wheel 208. When the three clamping wheels 208 contact the outer wall of the pipe, the three cleaning brush heads 313 will simultaneously press against the outer wall of the pipe. Then, the limiting ring 304 will slide outward due to the squeezing force of the first spring 306. Then, the hypotenuse of the limiting ring 304 will be engaged with the inner wall of the groove 316 at the corresponding position, so as to realize the limiting effect of the sliding column 309 inside the through hole 308. When the thermal insulation coating is applied to the pipeline, the side wall of the storage ring 501 is rotatably connected to the fourth gear 4, and the inner wall of the gear teeth of the fourth gear 4 matches and meshes with the internal gear teeth of the second gear ring 507, and the inner wall of the second tooth groove 317 matches and meshes with the inner wall of the gear teeth of the fourth gear 4. The two fourth gears 4 are rotatably connected to the side wall of the storage ring 501, which can drive the second gear ring 507 to maintain balance while rotating, and then the fourth gear 4 will drive the inner second tooth groove 317 to rotate, and then the second tooth groove 317 will drive the sliding post 309 to move through the through hole 308. During the rotation, the cleaning brush head 313 will grind and clean the outer wall of the pipeline. After the work is completed, the limit ring 304 can be pressed to slide into the inside of the circular groove 302, and then the limit ring 304 will be separated from the groove 316, and then the sliding post 309 can be reset by the elastic force of the third spring 315; As described above, the second connecting ring 307 can drive the sliding column 309 to rotate, so that the extrusion block 314 is against the pipe surface and rotates around the pipe, thereby automatically polishing the pipe surface and improving the effect of subsequent application of thermal insulation coating.

[0023] Working principle: first move the pipe to the inner side of the housing 1, and make the outer side of the pipe contact the clamping wheel 208, then start the second motor 8, then the second motor 8 will drive the third gear 207 of the output shaft to rotate, and then the third gear 207 will drive the first gear ring 206 that matches and meshes with it to rotate, and at the same time the first gear ring 206 will drive the second gear 205 to rotate, because the connecting rod 204 is rotatably connected to the inside of the housing 1, so the second gear 205 will drive the first gear 203 to rotate synchronously through the connecting rod 204, the bottom of the sliding plate 201 is slidably connected to the outer wall of the fixed rod 7, and then the first gear 203 drives the sliding plate 201 through the first tooth groove 202. The plate 201 slides outside the fixed rod 7, and the outer wall of the sliding plate 201 slides inside the slot 6. The sliding plate 201 is limited by the slot 6 and the fixed rod 7 so that it will not deviate. After that, after the three sliding plates 201 slide to a certain distance, the outer walls of the three clamping wheels 208 contact the outer wall of the pipe at the same time. At this time, the pipe can be clamped. Then, the first motor 209 can be started to drive the clamping wheel 208 to rotate. The rotation of the three clamping wheels 208 can drive the clamped pipe to move. Clamping mechanisms 2 are provided on both sides of the equipment, one side is the pipe processing entrance, and the other side is the pipe processing exit. The clamping mechanisms 2 on both sides can keep the pipe balanced. Afterwards, the thermal insulation coating can be applied to the pipeline through the coating mechanism 5. First, the coating is added to the storage chamber 502, and then the coating is passed through the one-way tube 505 to the coating head 504. Since a one-way flow valve is provided in the one-way tube 505, the coating can only be applied to the coating head 504 from the storage chamber 502. During the processing of the pipeline, the third motor 10 is synchronously driven to drive the fifth gear 11 of the output shaft to rotate, and then the fifth gear 11 drives the second gear ring 507 that is matched with its gear teeth to rotate. By providing a protrusion 508 on the inner wall of the second gear ring 507, during the process of the second gear ring 507 driving the protrusion 508 to rotate, the protrusion 508 will squeeze the airbag 506, and after the airbag 506 is squeezed, it will squeeze the inside of the coating head 504, and then the coating inside the coating head 504 will be sprayed onto the pipeline surface through the port of the coating head 504; When the thermal insulation coating is applied to the pipe, two fourth gears 4 are connected by rotating the side wall of the storage ring 501, which can drive the second gear ring 507 to maintain balance while rotating. Then the fourth gear 4 will drive the inner second tooth groove 317 to rotate, and then the second tooth groove 317 will drive the sliding column 309 to move through the through hole 308. During the rotation, the extrusion block 314 is pressed against the surface of the pipe and rotates around the pipe, thereby realizing the effect of automatically polishing the surface of the pipe.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal insulation processing device for a petroleum pipeline, comprising a housing (1) and a third motor (10), characterized in that: A fixing rod (7) is fixedly connected to the inner wall of the housing (1), a clamping mechanism (2) is provided on the outer wall of the fixing rod (7), and a fifth gear (11) is fixedly connected to the output shaft of the third motor (10); The clamping mechanism (2) comprises a fixing plate (210) for clamping pipes of different models and sizes, a cleaning mechanism (3) is provided on the side wall of the fixing plate (210) for pre-cleaning the outer wall of the pipe, and a coating mechanism (5) is provided on the top of the fifth gear (11) for coating the surface of the pipe with thermal insulation coating.

2. The thermal insulation processing equipment for oil pipeline according to claim 1 is characterized in that: The side wall of the sliding plate (201) is provided with a first tooth groove (202), and the inner wall of the first tooth groove (202) is matched and meshed with the first gear (203); the center of the first gear (203) is fixedly connected to a connecting rod (204), and the outer wall of the connecting rod (204) is fixedly connected to a second gear (205); the inner wall of the gear teeth of the second gear (205) is matched and meshed with a first gear ring (206), and the inner wall of the gear teeth of the first gear ring (206) is matched and meshed with a third gear (207); the side wall of the sliding plate (201) is fixedly mounted with a first motor (209), and the output shaft of the first motor (209) is fixedly connected to a clamping wheel (208); one end of the fixed plate (210) is fixedly connected to the side wall of the sliding plate (201).

3. The thermal insulation processing equipment for oil pipeline according to claim 2 is characterized in that: The bottom of the sliding plate (201) is slidably connected to the outer wall of the fixing rod (7); a slot (6) is provided through the inner wall of the outer shell (1); and the outer wall of the sliding plate (201) is slidably connected to the inner wall of the slot (6).

4. The thermal insulation processing equipment for oil pipeline according to claim 3 is characterized in that: The cleaning mechanism (3) comprises a first connecting ring (301) and a second connecting ring (307); a circular groove (302) is provided on the side wall of the first connecting ring (301); the inner wall of the circular groove (302) is fixedly connected to a limiting rod (303); the inner wall of the circular groove (302) is slidably connected to a limiting ring (304); the outer wall of the limiting ring (304) is fixedly connected to a convex plate (305); the side of the convex plate (305) close to the limiting rod (303) is fixedly connected to a first The first spring (306) is fixedly connected to the inner wall of the circular groove (302) at one end away from the convex plate (305); the convex plate (305) is slidably connected to the outer wall of the limiting rod (303); a through hole (308) is formed through the outer wall of the second connecting ring (307); a sliding column (309) is slidably connected to the inner wall of the through hole (308); an inner cavity (310) is formed inside the sliding column (309); and the inner cavity (310) is provided with a through hole (308). The wall is slidably connected to a sliding rod (311), and the bottom of the sliding rod (311) is fixedly connected to a second spring (312), one end of the second spring (312) away from the sliding rod (311) is fixedly connected to the bottom of the inner cavity (310), and one end of the sliding rod (311) away from the second spring (312) is fixedly connected to a cleaning brush head (313), and one end of the sliding column (309) away from the cleaning brush head (313) is fixedly connected to an extrusion block (3 14), and a third spring (315) is fixedly connected to the top of the extrusion block (314) at a position corresponding to the outer wall of the sliding column (309), the other end of the third spring (315) is fixedly connected to the outer wall of the second connecting ring (307), the outer wall of the sliding column (309) is provided with a groove (316), and the inner wall of the groove (316) is slidably connected to the outer wall of the limiting ring (304), and the outer wall of the second connecting ring (307) is provided with a second tooth groove (317).

5. The thermal insulation processing equipment for oil pipeline according to claim 4 is characterized in that: A second motor (8) is fixedly mounted on the side wall of the first connecting ring (301), and an output shaft of the second motor (8) is fixedly connected to the center of the side wall of the third gear (207), and an outer wall of the extrusion block (314) corresponds to the side wall of the fixing plate (210).

6. The thermal insulation processing equipment for oil pipeline according to claim 5 is characterized in that: The smearing mechanism (5) comprises a material storage ring (501) and a second gear ring (507), and a material storage chamber (502) is provided inside the material storage ring (501), a connecting tube (503) is fixedly connected to the inner wall of the material storage chamber (502), and one end of the connecting tube (503) is fixedly connected to a smearing head (504), a one-way tube (505) is fixedly connected to the side wall of the smearing head (504), and an air bag (506) is fixedly connected to the end of the connecting tube (503) away from the smearing head (504).

7. The thermal insulation processing equipment for oil pipeline according to claim 6 is characterized in that: A protrusion (508) is fixedly connected to the interior of the second gear ring (507), and an outer wall of the protrusion (508) corresponds to an outer wall of the airbag (506).

8. The thermal insulation processing equipment for oil pipeline according to claim 7 is characterized in that: The side wall of the material storage ring (501) is rotatably connected to a fourth gear (4), and the inner wall of the gear teeth of the fourth gear (4) matches and meshes with the internal gear teeth of the second gear ring (507), the inner wall of the second tooth groove (317) matches and meshes with the inner wall of the gear teeth of the fourth gear (4), the bottom of the housing (1) is fixedly connected to a base (9), and the bottom of the third motor (10) is fixedly connected to the inside of the base (9).

9. The processing technology of the thermal insulation processing equipment for oil pipeline according to claim 8 is characterized in that: The following steps are involved: S1: Pipe clamping: starting the second motor (8), and using the third gear (207) and the first gear (203) to drive the sliding plate (201) to slide on the outer wall of the fixed rod (7), so that the outer walls of the three clamping wheels (208) contact the outer wall of the pipe at the same time, and the pipe is clamped at this time; S2: cleaning the outer wall: using two fourth gears (4) to drive the second gear ring (507) to rotate while maintaining balance, then the fourth gear (4) drives the second tooth groove (317) on the inner side to rotate, and the second tooth groove (317) drives the sliding column (309) to move through the through hole (308), and during the rotation process, the cleaning brush head (313) grinds and cleans the outer wall of the pipe; S3: Surface coating: The third motor (10) is driven to drive the fifth gear (11) to rotate, and the fifth gear (11) drives the protrusion (508) to rotate through the second gear ring (507). During the process, the airbag (506) is squeezed, and after the airbag (506) is squeezed, the inside of the coating head (504) is squeezed, and then the coating inside the coating head (504) is sprayed onto the surface of the pipeline through the port of the coating head (504).

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