Crude oil heating and heat preservation continuous pipe

Abstract

The invention relates to the technical field of continuous pipes, in particular to a crude oil heating and heat preservation continuous pipe which is characterized in that a filter box is arranged on a continuous pipe body, a mounting table is fixedly connected to the outer side wall of the filter box, a support is fixedly connected to the outer side wall of the mounting table, and a starting motor is mounted on the support; a rotating rod is arranged at the output end of the starting motor, the outer side wall of the rotating rod is slidably sleeved with a wrapping ring, and through arrangement of the multiple filter plates and other mechanisms, when the continuous pipe body transports petroleum, the whole filter plates can rotationally filter the petroleum transported in the continuous pipe body, and the petroleum is conveyed into the continuous pipe body through the wrapping ring. Petroleum transported by the coiled tubing main body is prevented from containing more impurities, friction damage to the wall of the coiled tubing main body is avoided, and a driving plate can scrape the surface of a telescopic inner plate in a reciprocating manner and clean the surface of the telescopic inner plate under the action of magnetic force while the petroleum is rotatably filtered by a filter plate, so that the service life of the coiled tubing main body is prolonged. The telescopic inner plate is prevented from filtering more impurities to cause blockage, so that the filtering effect of the whole equipment is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of oil exploitation continuous pipe transportation, in particular to a crude oil heating and insulation continuous pipe. Background Art

[0002] Crude oil heating and insulation coiled tubing is a special oil pipe used to heat and maintain the temperature of crude oil. This type of oil pipe maintains the crude oil within a specific temperature range through external or internal heating elements to prevent it from becoming viscous or solidifying due to low temperatures. During transportation and storage, crude oil often needs to maintain a certain temperature to ensure its fluidity. Especially in cold areas, if the temperature of crude oil is too low, its viscosity will increase significantly, resulting in transportation difficulties.

[0003] The oil extraction process includes drilling, oil production, gathering and transportation, and in the process of gathering and transportation, heating and insulation continuous pipes are needed for transportation. Existing heating and insulation continuous pipes usually only transport the extracted crude oil, and crude oil will contain a large amount of mechanical impurities in the extraction process. These mechanical impurities include solid particles such as mud, dust, and rust. When these impurities are transported together by heating and insulation continuous pipes, these impurities will produce friction with the pipe wall during the flow process. Long-term friction will wear the pipe wall and affect the normal use of the heating and insulation continuous pipes. At the same time, in the transportation process of existing heating and insulation continuous pipes, the heating inside the pipeline is usually only heated by the heating pipe. However, during the transportation process, if the heating pipe fails and the heating effect is poor, it is easy to cause the oil to condense in the pipe, which is easy to cause the entire transportation pipe to be blocked. For this reason, we propose a crude oil heating and insulation continuous pipe. Summary of the invention

[0004] The purpose of the present invention is to provide a crude oil heating and heat preservation coiled pipe to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a crude oil heating and insulation coiled tubing, comprising a coiled tubing body, a filter box is arranged on the coiled tubing body, a sensor is arranged in the filter box, a mounting platform is fixedly connected to the outer wall of the filter box, a bracket is fixedly connected to the outer wall of the mounting platform, a starting motor is installed on the bracket, a rotating rod is arranged at the output end of the starting motor, a magnetic coupler is arranged between the starting motor and the rotating rod, a covering ring is slidably sleeved on the outer wall of the rotating rod, a plurality of through holes are opened on the rotating rod, the covering ring is fixedly connected to the mounting platform, a flow pipe is arranged inside the covering ring for communication, a trigger box is arranged on the flow pipe, and a connecting mechanism is arranged inside the trigger box.

[0006] Preferably, the connecting mechanism includes a baffle slidably connected to the inner wall of the trigger box, a through hole is formed on the baffle, a return spring is fixedly connected to the end of the baffle, the other end of the return spring is fixedly connected to the outer wall of the trigger box, and a pushing magnet is provided at one end of the baffle away from the through hole.

[0007] Preferably, a turntable is fixedly sleeved on the outer wall of the rotating rod, a sliding groove is provided on the inner wall of the turntable, a trigger magnet is slidably connected to the inner wall of the sliding groove, the magnetic pole of the trigger magnet is opposite to the magnetic pole of the pushing magnet, a tension spring is provided on the trigger magnet, and the end of the tension spring away from the trigger magnet is fixedly connected to the inner wall of the sliding groove.

[0008] Preferably, a plurality of filter plates are fixedly connected to one side of the rotating rod close to the inside of the filter box, and the inner side walls of the plurality of filter plates are provided with a telescopic inner plate. The telescopic inner plate is telescopic in design, and a centrifugal tension spring is provided between the two sides of the telescopic inner plate. A filter cleaning mechanism is provided inside the filter plate.

[0009] Preferably, the filtering and cleaning mechanism includes a sliding rod arranged on both sides of the inside of the filter plate, a driving plate is slidably connected to the outer wall of the sliding rod, a scraper is slidably connected to the inside of the driving plate, a pressing spring is arranged between the driving plate and the scraper, a return spring is sleeved on the outer wall of the sliding rod, and the end of the return spring is in contact with the driving plate.

[0010] Preferably, a plurality of reciprocating magnetic blocks are fixedly connected to the outer wall of the driving plate, and the plurality of reciprocating magnetic blocks slide through to the outside of the filter plate. A plurality of heating tubes are arranged inside the filter plate, and the plurality of heating tubes are slidably connected to the driving plate. A flow groove is provided at the end of the heating tube, and the flow groove penetrates to the inside of the rotating rod.

[0011] Preferably, a dirt storage box is provided at the bottom of the filter plate, a filter port is provided on the side of the dirt storage box, a through groove is opened on the dirt storage box, the through groove penetrates into the interior of the filter plate, and a circulating suction pipe is provided at the bottom of the rotating rod, and the circulating suction pipe slides through to the outside of the filter box.

[0012] Preferably, a hot water tank is provided on the outer wall of the filter box, the interior of the hot water tank is connected to the flow pipe, and a contact magnet is provided inside the filter box, and the magnetic poles of the contact magnet are the same as the magnetic poles of the reciprocating magnetic block.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the arrangement of multiple filter plates and other mechanisms, when crude oil is extracted and transported through the continuous tube body, the entire filter plate will perform rotational filtering on the oil transported in the continuous tube body to prevent the oil transported by the continuous tube body from containing more impurities and causing friction damage to the tube wall of the continuous tube body. While the filter plate is rotating to filter the oil, under the action of magnetic force, the driving plate will also reciprocately scrape the surface of the telescopic inner plate to clean the surface of the telescopic inner plate to prevent the telescopic inner plate from filtering more impurities and causing blockage, thereby ensuring the filtering effect of the entire equipment.

[0014] 2. Through the setting of heating pipes and other mechanisms, when the heating effect of the entire coiled tube body is not good, the rotating rod will pass hot water into multiple heating pipes to heat the oil when it passes through the filter plate to prevent the oil from condensing and causing pipeline blockage, and to achieve additional heating to ensure the oil transportation effect of the entire coiled tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 The main structure of the coiled tube of the present invention is shown in FIG. Figure 1 ; Figure 3 The main structure of the coiled tube of the present invention is shown in FIG. Figure 2 ; Figure 4 for Figure 3 The enlarged view of point A in the middle; Figure 5 It is a schematic diagram of the local structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the coiled tube body of the present invention; Figure 7 It is a schematic diagram of the internal structure of the filter plate of the present invention; Figure 8 The local structure of the telescopic inner panel of the present invention is shown in FIG. Figure 1 ; Fig. 9 The local structure of the telescopic inner panel of the present invention is shown in FIG. Figure 2 ; Fig.10 It is a schematic diagram of the turntable state structure of the present invention.

[0016] In the figure, 1, continuous pipe body; 2, hot water tank; 3, mounting table; 4, starting motor; 5, filter box; 6, bracket; 7, circulating suction pipe; 8, circulation slot; 9, rotating rod; 10, turntable; 11, tension spring; 12, trigger magnet; 13, sliding slot; 14, covering ring; 15, circulation pipe; 16, trigger box; 17, baffle; 18, through hole; 19, return spring; 20, push magnet; 21, contact magnet; 22, filter plate; 23, telescopic inner plate; 24, reciprocating magnetic block; 25, centrifugal tension spring; 26, sliding rod; 27, return spring; 28, driving plate; 29, heating through pipe; 30, scraper; 31, pressing spring; 32, dirt storage box; 33, through slot; 34, through hole. DETAILED DESCRIPTION

[0017] 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.

[0018] Example 1: Please refer to Figure 1 - Fig.10 In the figure, the crude oil heating and insulation coiled pipe comprises a coiled pipe body 1, a filter box 5 is arranged on the coiled pipe body 1, a sensor is arranged in the filter box 5, a mounting platform 3 is fixedly connected to the outer wall of the filter box 5, a bracket 6 is fixedly connected to the outer wall of the mounting platform 3, a starter motor 4 is installed on the bracket 6, a rotating rod 9 is arranged at the output end of the starter motor 4, a magnetic coupler is arranged between the starter motor 4 and the rotating rod 9, a covering ring 14 is slidably sleeved on the outer wall of the rotating rod 9, and a plurality of through holes 34 are opened on the rotating rod 9, such as Figure 5 As shown, the covering ring 14 is fixedly connected to the mounting platform 3, and the inside of the covering ring 14 is connected to a flow tube 15, and a trigger box 16 is arranged on the flow tube 15, and a communication mechanism is arranged inside the trigger box 16. The covering ring 14 and the rotating rod 9 can rotate relative to each other, and sealing rings are arranged between the two ends of the covering ring 14 and the rotating rod 9, and a communication cavity is formed between the covering ring 14 and the rotating rod 9, and the through hole 34 is connected to the communication cavity, and the flow tube 15 is also connected to the communication cavity.

[0019] The connecting mechanism includes a baffle 17 that slides through the inner wall of the trigger box 16, and a through hole 18 is provided on the baffle 17. The baffle 17 and the trigger box 16 are sealed. A return spring 19 is fixedly connected to the end of the baffle 17, and the other end of the return spring 19 is fixedly connected to the outer wall of the trigger box 16. A pushing magnet 20 is provided at the end of the baffle 17 away from the through hole 18. A turntable 10 is fixedly sleeved on the outer wall of the rotating rod 9. A radial sliding groove 13 is provided on the upper end surface of the rotating rod 10. A trigger magnet 12 is slidably connected in the sliding groove 13. The magnetic pole of the trigger magnet 12 is opposite to the magnetic pole of the pushing magnet 20. A tension spring 11 is provided on the trigger magnet 12, and one end of the tension spring 11 away from the trigger magnet 12 is fixedly connected to the inner wall of the sliding groove 13. A plurality of filter plates 22 are fixedly connected to the end of the rotating rod 9 close to the filter box 5, such as Figure 6 As shown, the filter plate 22 is arranged in the filter box 5, and multiple filter plates 22 are evenly spaced around the rotating rod 9. The filter plate 22 is hollow, and a telescopic inner plate 23 is arranged in each filter plate 22. The telescopic inner plate 23 is telescopic in design, and a centrifugal tension spring 25 is arranged between the two sides of the telescopic inner plate 23.

[0020] Further, each filter plate 22 is provided with a plurality of telescopic inner plates 23, and each telescopic inner plate 23 is sequentially arranged in a direction away from the rotating rod 9. In each adjacent two telescopic inner plates 23, the telescopic inner plate 23 away from the rotating rod 9 can slide into the telescopic inner plate 23 close to the rotating rod 9, and a convex limiting portion is provided on one side of the telescopic inner plate 23 away from the rotating rod 9, and a blocking portion is provided at the opening of the telescopic inner plate 23 close to the rotating rod 9. The limiting portion cooperates with the blocking portion to prevent the adjacent two telescopic inner plates 23 from separating. The two ends of the centrifugal tension spring 25 are respectively fixedly connected to the two outermost telescopic inner plates 23, and the centrifugal tension spring 25 is in a stretched state. Each telescopic inner plate 23 is provided with a filter hole, and the aperture of the filter hole on the telescopic inner plate 23 is smaller than the aperture of the filter plate 22.

[0021] The filter plate 22 is provided with a filter cleaning mechanism inside, which includes slide bars 26 provided on both sides of the filter plate 22. The slide bars 26 are provided along the radial direction of the rotating rod 9. A driving plate 28 is slidably connected to the outer wall of the slide bar 26. A scraper 30 (such as a scraper 30) is slidably connected to the inner side of the driving plate 28. Fig. 9 As shown in the figure, a pressing spring 31 is arranged between the driving plate 28 and the scraper 30, a return spring 27 is sleeved on the outer wall of the slide rod 26, and the end of the return spring 27 is in contact with the driving plate 28. A plurality of reciprocating magnetic blocks 24 are fixedly connected to the outer wall of the driving plate 28, and the plurality of reciprocating magnetic blocks 24 all slide through to the outside of the filter plate 22.

[0022] In this embodiment, when the oil is extracted, the extracted crude oil can be transported through the continuous pipe body 1. During the transportation process, when the crude oil reaches the filter box 5, the operator can turn on the starting motor 4 to drive the rotating rod 9 to rotate. When the rotating rod 9 rotates, the multiple filter plates 22 will stir the oil transported to the filter box 5. The stirring can effectively mix the different components in the crude oil to make it more evenly distributed, reduce the stratification of the crude oil during transportation, and ensure the uniformity of the temperature of the inner and outer layers of the transported crude oil. When the rotating rod 9 drives the filter plate 22 to rotate, under the action of centrifugal force, the telescopic inner plate 23 located inside the filter plate 22 will overcome the pulling force of the centrifugal tension spring 25 and be thrown away until it is flattened inside the entire filter plate 22. When the telescopic inner plate 23 is flattened on the filter plate After the liquid petroleum passes through the filter plate 22 with larger filter holes, the mechanical impurities contained in the liquid petroleum will be filtered on its surface by the telescopic inner plate 23 with smaller filter holes, and the liquid petroleum will pass through the smaller filter holes on the telescopic inner plate 23 and flow out of the filter plate 22 for flow transportation. While the filter plate 22 rotates and filters the petroleum, the filter plate 22 will also drive the reciprocating magnetic block 24 to rotate synchronously. When the reciprocating magnetic block 24 rotates to the positive side of the contact magnet 21, under the action of the repulsive magnetic force, the driving plate 28 will overcome the elastic force of the reset spring 27 and slide along the slide rod 26, and will drive the scraper 30 to reciprocate and scrape the mechanical impurities filtered on the surface of the telescopic inner plate 23 to avoid the accumulation of more impurities on the surface of the telescopic inner plate 23, which will cause the telescopic inner plate 23 to be blocked.

[0023] Example 2: Please refer to Figure 1 - Fig.10 In the figure, a plurality of heating pipes 29 are arranged inside the filter plate 22, and the plurality of heating pipes 29 are slidably connected to the driving plate 28. A flow groove 8 is provided at the end of the heating pipe 29, and the flow groove 8 penetrates into the interior of the rotating rod 9. A dirt storage box 32 is arranged at the bottom of the filter plate 22, and a filter port is arranged on the side of the dirt storage box 32. A through groove 33 is arranged on the dirt storage box 32, and the through groove 33 penetrates into the interior of the filter plate 22. A circulating suction pipe 7 is arranged at the bottom of the rotating rod 9, and the circulating suction pipe 7 slides and penetrates to the outside of the filter box 5. A hot water tank 2 is arranged on the outer wall of the filter box 5, and the interior of the hot water tank 2 is connected to the flow pipe 15. A contact magnet 21 (such as Figure 6 As shown), the magnetic poles of the contact magnet 21 are the same as the magnetic poles of the reciprocating magnetic block 24.

[0024] In this embodiment, during the process of transporting oil by the coiled tube body 1, if the original heating element inside the coiled tube body 1 fails and the heating effect fails, resulting in a decrease in the temperature of the crude oil transported by the coiled tube body 1, the wax component inside the oil will solidify, resulting in an increase in the viscosity of the entire oil. When the viscosity of the oil increases, the resistance of the rotating rod 9 to drive the filter plate 22 to rotate and stir the oil will increase. When the power of the starting motor 4 is constant and the rotating rod 9 drives the multiple filter plates 22 to stir the oil, the rotation speed of the entire rotating rod 9 will slow down. When the rotation speed of the rotating rod 9 slows down, the centrifugal force generated at this time becomes smaller. At this time, under the pull of the centrifugal tension spring 25, the telescopic inner plate 23 will shrink and be located on the inner side of the entire filter plate 22, and no longer flatten the entire process. Inside the filter plate 22, the viscous oil can flow through the larger filter holes of the filter plate 22 to ensure the fluidity of the oil. When the rotating rod 9 rotates at a relatively slow speed, it will drive the turntable 10 to rotate synchronously. When the turntable 10 rotates synchronously, the small centrifugal force generated will cause the trigger magnet 12 to overcome the tension of the tension spring 11 and be thrown to the middle of the sliding groove 13. When the trigger magnet 12 thrown to the middle of the sliding groove 13 rotates intermittently with the turntable 10 to the positive side of the pushing magnet 20, since the trigger magnet 12 located in the middle of the sliding groove 13 is relatively far away from the pushing magnet 20, the magnetic attraction generated by the two is relatively small. At this time, under the action of the small magnetic attraction, the baffle 17 will move a short distance away from the turntable 10 (refer to Figure 4 and Fig.10 ), at this time, the through hole 18 located on the baffle 17 will enter the trigger box 16. When the through hole 18 enters the trigger box 16, the heated water in the hot water tank 2 will flow into the inside of the trigger box 16 through the front end of the circulation tube 15, and then flow into the covering ring 14 through the through hole 18 and the circulation tube 15. When the rotation of the rotating rod 9 causes the through hole 34 to coincide with the open end of the circulation tube 15, the hot water transported by the circulation tube 15 will pass through the covering ring 14 and then flow into the rotating rod 9 through the through hole 34. Then, when the rotating rod 9 rotates, it will be thrown into the interior of the heating pipe 29 through the circulation groove 8, and heat will be exchanged with the dehumidified oil flowing into the filter plate 22, and the dehumidified oil will be heated again, thereby achieving additional heating to prevent its temperature from dropping too quickly and causing blockage (it should be noted that the heating pipe 29 is made of brass and has a strong thermal conductivity).

[0025] It should be noted that a sensor is provided inside the filter box 5. When the viscosity of the oil flowing through the filter box 5 is relatively strong, in addition to reheating the oil through the heating pipe 29 inside the filter plate 22, an alarm will also be sounded to remind the staff to carry out maintenance and reheat the oil.

[0026] It should be noted that when the dehumidified oil passes through a filter box 5 and is not filtered by the filter plate 22, since the coiled tubing body 1 is provided with multiple filter boxes 5, when the oil is reheated and flows into the next filter box 5 in liquid form, the filter plate 22 in the next filter box 5 will re-filter the oil at normal temperature.

[0027] It should be noted that when the rotating rod 9 drives the filter plate 22 to rotate and filter the oil at a normal speed, the rotating disk 10 will be driven to rotate at a faster speed. When the rotating disk 10 rotates at a faster speed, the trigger magnet 12 will be located on the outside of the sliding groove 13. When the trigger magnet 12 located on the outside of the sliding groove 13 rotates to the positive side of the push magnet 20 as the rotating disk 10 rotates, the distance between the two is close, and the generated magnetic attraction force is large, which will cause the baffle 17 to move a longer distance in the direction close to the rotating disk 10. At this time, the baffle 17 that moves a longer distance will not allow the through hole 18 to enter the inside of the trigger box 16, so the flow pipe 15 will not pass water into the covering ring 14 (refer to Figure 4 and Fig.10 ).

[0028] It should be noted that the return spring 19 is a damping spring with a normal contraction speed and a slow rebound speed. When the turntable 10 rotates at a fast speed, the trigger magnet 12 rotates with the turntable 10 to move away from the pushing magnet 20. At this time, the magnetic force between the two disappears, and the return spring 19 with a slow rebound speed does not have time to bounce the baffle 17 back to its original position, and the trigger magnet 12 will rotate to the side of the pushing magnet 20 with the turntable 10 again. Therefore, as long as the turntable 10 rotates quickly, the through hole 18 will always be outside the trigger box 16 and will not enter the trigger box 16. Similarly, when the turntable 10 rotates at a relatively slow speed, the return spring 19 has a slower rebound speed and still will not bounce the baffle 17 back to its original position when the turntable 10 rotates. The baffle 17 that is pushed a short distance will cause the through hole 18 to always be inside the trigger box 16.

[0029] It should be noted that when the driving plate 28 drives the scraper 30 to scrape the surface of the telescopic inner plate 23 back and forth, the impurities on the surface of the telescopic inner plate 23 will fall into the through groove 33 and be stored in the dirt storage box 32. Although oil and impurities will also enter the dirt storage box 32 through the through groove 33, a filter port is provided on the side of the dirt storage box 32. The oil entering the dirt storage box 32 will flow out of the dirt storage box 32 through the filter port, while the impurities will be filtered and remain in the dirt storage box 32.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] 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 crude oil heating and insulation coiled tubing, comprising a coiled tubing body (1), characterized in that: The continuous tube body (1) is provided with a filter box (5), a sensor is provided in the filter box (5), an outer wall of the filter box (5) is fixedly connected to a mounting platform (3), an outer wall of the mounting platform (3) is fixedly connected to a bracket (6), a starting motor (4) is mounted on the bracket (6), a rotating rod (9) is provided at the output end of the starting motor (4), a magnetic coupler is provided between the starting motor (4) and the rotating rod (9), a covering ring (14) is slidably sleeved on the outer wall of the rotating rod (9), a plurality of through holes (34) are provided on the rotating rod (9), the covering ring (14) is fixedly connected to the mounting platform (3), a flow pipe (15) is provided inside the covering ring (14), a trigger box (16) is provided on the flow pipe (15), and a connecting mechanism is provided inside the trigger box (16).

2. The crude oil heating and insulation coiled tube according to claim 1, characterized in that: The connecting mechanism comprises a baffle (17) slidably connected to the inner wall of the trigger box (16), the baffle (17) being provided with a through hole (18), a return spring (19) being fixedly connected to the end of the baffle (17), the other end of the return spring (19) being fixedly connected to the outer wall of the trigger box (16), and a pushing magnet (20) being provided at one end of the baffle (17) away from the through hole (18).

3. The crude oil heating and insulation coiled tube according to claim 1, characterized in that: The outer wall of the rotating rod (9) is fixedly sleeved with a rotating disk (10), the inner wall of the rotating disk (10) is provided with a sliding groove (13), the inner wall of the sliding groove (13) is slidably connected with a trigger magnet (12), the magnetic pole of the trigger magnet (12) is opposite to the magnetic pole of the pushing magnet (20), and the trigger magnet (12) is provided with a tension spring (11), and one end of the tension spring (11) away from the trigger magnet (12) is fixedly connected to the inner wall of the sliding groove (13).

4. The crude oil heating and insulation coiled tube according to claim 1, characterized in that: A plurality of filter plates (22) are fixedly connected to one side of the rotating rod (9) close to the inside of the filter box (5); inner side walls of the plurality of filter plates (22) are each provided with a telescopic inner plate (23); the telescopic inner plate (23) is of telescopic design; a centrifugal tension spring (25) is provided between two sides of the telescopic inner plate (23); and a filter cleaning mechanism is provided inside the filter plate (22).

5. The crude oil heating and insulation coiled tube according to claim 4, characterized in that: The filtering and cleaning mechanism comprises a sliding rod (26) arranged on both sides of the inside of the filter plate (22); a driving plate (28) is slidably connected to the outer wall of the sliding rod (26); a scraper (30) is slidably connected to the inside of the driving plate (28); a pressing spring (31) is arranged between the driving plate (28) and the scraper (30); a return spring (27) is sleeved on the outer wall of the sliding rod (26); and an end of the return spring (27) is in contact with the driving plate (28).

6. The crude oil heating and insulation coiled pipe according to claim 5, characterized in that: A plurality of reciprocating magnetic blocks (24) are fixedly connected to the outer wall of the driving plate (28), and the plurality of reciprocating magnetic blocks (24) are slidably penetrated to the outside of the filter plate (22). A plurality of heating tubes (29) are arranged inside the filter plate (22), and the plurality of heating tubes (29) are slidably connected to the driving plate (28). A flow groove (8) is provided at the end of the heating tube (29), and the flow groove (8) penetrates to the inside of the rotating rod (9).

7. The crude oil heating and insulation coiled pipe according to claim 4, characterized in that: A dirt storage box (32) is provided at the bottom of the filter plate (22), a filter port is provided on the side of the dirt storage box (32), a through groove (33) is provided on the dirt storage box (32), the through groove (33) penetrates into the interior of the filter plate (22), a circulating suction pipe (7) is provided at the bottom of the rotating rod (9), and the circulating suction pipe (7) slides through to the outside of the filter box (5).

8. The crude oil heating and insulation coiled tube according to claim 1, characterized in that: A hot water tank (2) is arranged on the outer wall of the filter box (5), the interior of the hot water tank (2) is connected to the circulation pipe (15), and a contact magnet (21) is arranged inside the filter box (5), the magnetic pole of the contact magnet (21) being the same as the magnetic pole of the reciprocating magnetic block (24).

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