Petroleum conveying device with impurity auxiliary filtering function

Abstract

The invention relates to the field of oil conveying, and discloses an oil conveying device with an impurity auxiliary filtering function, the oil conveying device comprises a base and a driving assembly and an oil pumping assembly which are arranged at the upper end of the base, the oil pumping assembly comprises an oil pumping pipe movably connected to the base through a fixing seat, and an oil pumping rod is slidably connected to the interior of the oil pumping pipe; the upper end of the sucker rod is fixedly connected with an oil guide pipe, the lower end of the sucker rod is fixedly connected with a piston pipe, and the bottom of the piston pipe and the bottom of the oil pumping pipe are fixedly connected with a valve seat and a valve body from bottom to top respectively. A filtering assembly used for filtering impurities in petroleum is arranged in the oil pumping pipe and comprises a filtering plate fixedly connected to the interior of the oil pumping pipe. According to the oil pumping pipe, oil is conveyed and filtered, meanwhile, filtered impurities can be collected together in time, the collected impurities are conveyed to the ground to be cleaned, it is avoided that the impurities are gathered underground to affect the situation that the oil permeates into the oil pumping pipe, and the normal conveying efficiency of the oil is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of oil transportation technology, and more specifically, to an oil transportation device with an impurity-assisted filtration function. Background Technology

[0002] Oil extraction requires transportation to transport underground oil to processing plants for further processing. Transportation in oil extraction mainly consists of two parts: transporting underground oil to the surface and transporting surface oil to specific processing plants via pipelines.

[0003] When transporting underground oil to the surface, the crude oil contains a large number of impurities. To prevent these impurities from clogging the pipelines during transport, it is necessary to filter the oil. This method of filtration is simple and the filtered impurities are easy to handle. However, the pipelines from underground to the surface are prone to clogging due to these impurities, which affects the efficiency of oil transport.

[0004] Therefore, filtering oil during underground extraction can prevent oil pipelines from being blocked by impurities and interrupting oil transportation. However, when filtering oil underground, the impurities obtained are not easy to handle and can easily accumulate, preventing underground oil from penetrating into the oil extraction pipeline and thus affecting oil transportation efficiency. Summary of the Invention

[0005] This invention provides an oil transportation device with impurity-assisted filtration function, which solves the technical problem in related technologies where impurities obtained from filtering oil from underground are difficult to handle, leading to impurity accumulation that affects the oil's penetration into the pumping pipe and reduces oil transportation efficiency.

[0006] This invention provides an oil conveying device with impurity-assisted filtration function, including a base and a drive assembly and an oil pumping assembly disposed on the upper end of the base. The oil pumping assembly includes an oil pumping pipe movably connected to the base by a fixed seat, and an oil pumping rod slidably connected inside the oil pumping pipe. An oil guide pipe is fixedly connected to the upper end of the oil pumping rod, and a piston tube is fixedly connected to the lower end of the oil pumping rod. A valve seat and a valve body are fixedly connected from bottom to top to the bottom of the piston tube and the oil pumping pipe, respectively. The inside of the oil extraction pipe is equipped with a filter assembly for filtering impurities from the oil. The filter assembly includes a filter plate fixedly connected inside the oil extraction pipe, and an impurity collection unit is provided inside the oil extraction pipe below the filter plate. An impurity cleaning unit is provided between the impurity collection unit and the fixed base.

[0007] As a further optimization of the present invention, the impurity collection unit includes an agglomerating cup fixedly connected inside the sucker pipe, a driving rod fixedly connected to the lower end of the valve seat, and a driving ring movably connected to the lower end of the driving rod. Limiting blocks are fixedly connected to both the upper and lower surfaces of the driving rod above and below the agglomerating cup, and a sealing ring is fixedly connected to the upper outer side of the agglomerating cup.

[0008] As a further optimization of the present invention, the outer circular surface of the agglomerating cup is concave inward, and a gap is left between the top of the agglomerating cup and the oil extraction tube.

[0009] As a further optimization of the present invention, the impurity cleaning unit includes collection chambers opened on both sides of the oil extraction tube, and a sealing block is fixedly connected to the bottom opening of the collection chamber. A first spring is fixedly connected between the sealing block and the collection chamber, and the upper end of the sealing block is stepped. A top column is fixedly connected between the sealing block and the sealing ring. A folded bladder is fixedly connected to the upper end of the fixing seat. An air suction hole is opened at the top of the oil extraction tube. A storage chamber is opened at the top of the fixing seat, and an intercepting mesh plate is fixedly connected to the top of the storage chamber.

[0010] As a further optimization of the present invention, a heat dissipation assembly is provided between the folded bladder and the oil extraction pipe. The heat dissipation assembly includes a first partition fixedly connected to the inside of the collection chamber. The folded bladder is divided into a cold air chamber and a hot air chamber by a second partition. An air blowing pipe is fixedly connected between the bottom of the folded bladder and the oil extraction pipe. An air inlet pipe and an air outlet pipe are fixedly connected to the front and rear ends of the folded bladder, respectively. A one-way valve is fixedly connected to the inside of the air inlet pipe, the air outlet pipe, the air blowing pipe, the air intake hole, and the lower end of the first partition.

[0011] As a further optimization of the present invention, the second partition is a corrugated folded plate, the cold air chamber is connected to the area behind the first partition of the collection chamber through the air blowing pipe, and the hot air chamber is connected to the area in front of the first partition of the collection chamber through the storage chamber and the air intake hole. The first partition is L-shaped.

[0012] As a further optimization of the present invention, the bottom of the filter plate is provided with an anti-clogging component. The anti-clogging component includes a fixed shaft fixedly connected to the bottom of the filter plate, and a sleeve is movably connected to the outside of the fixed shaft. A cleaning brush is fixedly connected to the outside of the sleeve, and a spiral groove is opened inside the sleeve. A slider that matches the spiral groove is fixedly connected to the outside of the fixed shaft.

[0013] As a further optimization of the present invention, the weight of the sleeve is greater than the resistance encountered when the sleeve slides along the outside of the fixed axis.

[0014] As a further optimization of the present invention, a stable closing component is provided between the valve seat and the valve body. The stable closing component includes a limiting rod fixedly connected between the valve seat and the valve body, and the surface of the limiting rod is provided with a spiral protrusion. The lower end of the valve body is fixedly connected to the limiting seat by a second spring.

[0015] As a further optimization of the present invention, the drive assembly includes a motor, a gearbox, and a bracket fixedly connected to the upper end of the base. The upper end of the bracket is movably connected to a donkey head via a walking beam, and a pull rope is fixedly connected to the outside of the donkey head. One end of the pull rope is connected to the sucker rod via a suspension device. One end of the walking beam is rotatably connected to a crank, and the crank is rotatably connected to the gearbox via a balancer. The output shaft of the motor is rotatably connected to the gearbox via a belt.

[0016] The beneficial effects of this invention are as follows: 1. The oil conveying device with impurity auxiliary filtration function described in this invention can filter oil during conveying, and at the same time collect the filtered impurities in a timely manner, and transport the collected impurities to the ground for cleaning, so as to avoid the accumulation of impurities underground and affect the oil permeation into the oil pumping pipe, thus ensuring the normal oil conveying efficiency.

[0017] 2. The oil conveying device with impurity auxiliary filtration function described in this invention utilizes cold air from outside the ground to enter the collection chamber to cool the repeatedly moving piston tube, and discharges the hot air to the ground under circulation. This avoids the repeated movement of the piston tube and friction with the oil extraction pipe, which would cause the lubrication effect and sealing between the piston tube and the oil extraction pipe to decrease and lead to leakage, thus ensuring that the oil extraction operation is not affected and operates stably.

[0018] 3. The oil conveying device with impurity auxiliary filtration function described in this invention uses a cleaning brush to clean the impurities attached to the surface of the filter plate, so as to avoid impurities adhering to the filter plate and causing filter plate blockage, and ensure that the filter plate can effectively filter impurities in oil. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the oil extraction pipe of the present invention; Figure 3 This is the present invention. Figure 2 Enlarged view of point A in the middle; Figure 4 This is the present invention. Figure 2 Enlarged view at point B in the middle; Figure 5 This is the present invention. Figure 2 Enlarged view at point C; Figure 6This is a view of the combination of the gathering cup and the drive ring of the present invention; Figure 7 This is a partial structural diagram of the impurity cleaning unit of the present invention; Figure 8 This is a partial structural diagram of the heat dissipation component of the present invention; Figure 9 This is a schematic diagram of the internal structure of the collection cavity of the present invention; Figure 10 This is a schematic diagram of the anti-clogging component structure of the present invention; Figure 11 This is a schematic diagram of the stable closure component structure of the present invention.

[0020] In the picture: 10. Base; 20. Drive assembly; 21. Bracket; 22. Walking beam; 23. Donkey head; 24. Pull rope; 25. Crank; 26. Balancer; 27. Gearbox; 28. Motor; 29. ​​Belt; 30. Oil extraction assembly; 31. Mounting base; 32. Oil extraction tubing; 33. Sucker rod; 34. Oil guide tube; 35. Suspension rope device; 36. Piston tube; 37. Valve seat; 38. Valve body; 40. Filter assembly; 41. Filter plate; 42. Impurity collection unit; 421. Gathering cup; 422. Drive rod; 423. Drive ring; 424. Limiting block; 425. Sealing ring; 43. Impurity cleaning unit; 431. Collection chamber; 432. Sealing block; 433. First spring; 434. Top column; 435. Folded bladder; 436. Intake port; 437. Storage chamber; 438. Interception mesh plate; 50. Heat dissipation assembly; 51. First partition; 52. One-way valve; 53. Second partition; 54. Air blowing pipe; 55. Air inlet pipe; 56. Cold air chamber; 57. Hot air chamber; 58. Exhaust pipe; 60. Anti-clogging component; 61. Fixed shaft; 62. Sleeve; 63. Cleaning brush; 64. Spiral groove; 65. Slider; 70. Stable closing assembly; 71. Limiting rod; 72. Helical protrusion; 73. Limiting seat; 74. Second spring. Detailed Implementation

[0021] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0022] like Figure 1 , Figure 2 and Figure 4 As shown, an oil conveying device with impurity-assisted filtration function according to an embodiment of the present invention includes a base 10 and a drive assembly 20 and an oil extraction assembly 30 disposed on the upper end of the base 10. The oil extraction assembly 30 includes an oil extraction pipe 32 movably connected to the base 10 by a fixed seat 31, and an oil extraction rod 33 is slidably connected inside the oil extraction pipe 32. An oil guide pipe 34 is fixedly connected to the upper end of the oil extraction rod 33, and a piston pipe 36 is fixedly connected to the lower end of the oil extraction rod 33. A valve seat 37 and a valve body 38 are fixedly connected from bottom to top to the bottom of the piston pipe 36 and the oil extraction pipe 32, respectively. The drive assembly 20 includes a motor 28, a gearbox 27, and a bracket 21 fixedly connected to the upper end of the base 10. The upper end of the bracket 21 is movably connected to a donkey head 23 via a walking beam 22, and a pull rope 24 is fixedly connected to the outside of the donkey head 23. One end of the pull rope 24 is connected to the sucker rod 33 via a suspension rope 35. One end of the walking beam 22 is rotatably connected to a crank 25, and the crank 25 is rotatably connected to the gearbox 27 via a balancer 26. The output shaft of the motor 28 is rotatably connected to the gearbox 27 via a belt 29.

[0023] It should be noted that, firstly, the base 10 is moved above the oil well, and the sucker pipe 32 is inserted into the oil well. The sucker rod 33 is connected to the pull rope 24 using the suspension rope 35. Then, the motor 28 operates and drives the reduction gearbox 27 using the belt 29. When the reduction gearbox 27 operates, it drives the crank 25 and the balancer 26 to rotate, thereby using the walking beam 22 with the support 21 as the fulcrum to drive the donkey head 23 to swing up and down. When the donkey head 23 rises, the pull rope 24 and the suspension rope 35 pull the sucker rod 33 to slide upward inside the sucker pipe 32. When the sucker rod 33 moves upward, it drives the piston tube 36 to move upward synchronously. At this time, the small ball on the valve seat 37 inside the piston tube 36 blocks the opening on the valve seat 37, so that the piston tube 36 performs piston movement inside the sucker pipe 32, thereby generating a suction force inside the sucker pipe 32. Under the action of the suction force, underground oil is pumped into the sucker pipe. Inside the pipe 32, the small ball on the valve seat 37 at the bottom of the pipe 32 rises, opening the valve seat 37 and allowing oil to smoothly enter the pipe 32. When the sucker rod 33 moves down, it pushes the piston tube 36 down inside the pipe 32. At this time, the small ball on the valve seat 37 at the bottom of the pipe 32 falls under the action of gravity and blocks the opening on the valve seat 37, preventing oil from leaking from the inside of the pipe 32. Meanwhile, the small ball on the valve seat 37 inside the piston tube 36 moves up against the oil resistance during the downward movement of the piston tube 36, allowing the oil inside the pipe 32 to pass through the valve seat 37 on the piston tube 36. This process is repeated, allowing underground oil to be transported to the surface through the pipe 32 until the oil is extracted to the top of the pipe 32 and discharged through the oil guide pipe 34, thus completing the oil transport operation from underground to the surface.

[0024] like Figures 1 to 9 As shown, the inside of the oil extraction pipe 32 is provided with a filter assembly 40 for filtering impurities in the oil. The filter assembly 40 includes a filter plate 41 fixedly connected inside the oil extraction pipe 32, and an impurity collection unit 42 is provided inside the oil extraction pipe 32 below the filter plate 41. An impurity cleaning unit 43 is provided between the impurity collection unit 42 and the fixed base 31. The impurity collection unit 42 includes an aggregating cup 421 fixedly connected inside the oil extraction pipe 32. A drive rod 422 is fixedly connected to the lower end of the valve seat 37, and a drive ring 423 is movably connected to the lower end of the drive rod 422. Limiting blocks 424 are fixedly connected to both the upper and lower parts of the aggregating cup 421 on the surface of the drive rod 422. A sealing ring 425 is fixedly connected to the upper outer part of the aggregating cup 421. The outer circular surface of the collecting cup 421 is concave inward, and there is a gap between the top of the collecting cup 421 and the sucker pipe 32. The impurity cleaning unit 43 includes collection chambers 431 on both sides of the oil extraction pipe 32, and a sealing block 432 is fixedly connected to the bottom opening of the collection chamber 431. A first spring 433 is fixedly connected between the sealing block 432 and the collection chamber 431. The upper end of the sealing block 432 is stepped. A top post 434 is fixedly connected between the sealing block 432 and the sealing ring 425. A folded bladder 435 is fixedly connected to the upper end of the fixing seat 31. An air suction hole 436 is opened at the top of the oil extraction pipe 32. A storage chamber 437 is opened at the top of the fixing seat 31. An intercepting mesh plate 438 is fixedly connected to the top of the storage chamber 437.

[0025] It should be noted that during oil transportation, a filter plate 41 is installed inside the sucker pipe 32 to prevent impurities in the oil from clogging it. When oil enters the sucker pipe 32, it is filtered by the filter plate 41 before being transported to the surface. Impurities in the oil are intercepted by the filter plate 41. When the sucker rod 33 moves downward, the intercepted impurities are no longer subject to suction and fall under their own gravity. The falling impurities will fall into the gap between the collecting cup 421 and the sucker pipe 32. When the sucker rod 33 moves upward, it will pull the drive ring 423 upward through the drive rod 422. When the drive ring 423 moves upward, it squeezes the inner wall of the collecting cup 421, causing the outer wall of the collecting cup 421 to fit against the inner wall of the sucker pipe 32. This blocks impurities falling into the gap between the collecting cup 421 and the sucker pipe 32, preventing impurities falling during the oil extraction process from flowing with the oil to the filter plate 41. Because the middle of the outer surface of the collecting cup 421 is concave inward, when the drive ring 423 moves to the upper part of the collecting cup 421, the middle of the collecting cup 421 retracts, forming a cavity between the collecting cup 421 and the sucker pipe 32, which facilitates the collection of impurities and their movement to the collecting plate 41. The drive ring 423 at the top of the cup 421 deforms its upper part and maintains the seal between the upper part of the collecting cup 421 and the sucker tube 32 using the sealing ring 425. At the same time, as the collecting cup 421 is deformed by the drive ring 423, it also pushes the sealing block 432 into the collecting chamber 431 through the top column 434, thereby opening the collecting chamber 431. On this basis, as the sucker rod 33 moves upward, it will cause the folded bladder 435 at the top of the fixed seat 31 to unfold. After the folded bladder 435 unfolds, it generates suction force, which draws the filtered and collected impurities into the storage chamber 4 through the suction port 436 and the collecting chamber 431. Inside the storage chamber 437, impurities entering the storage chamber 437 are intercepted by the intercepting mesh plate 438, so that the filtered impurities are finally collected in the storage chamber 437 for easy subsequent cleaning. When the sucker rod 33 moves down again, the sealing block 432 is pushed back to the original position under the action of the first spring 433 to seal the opening of the collection chamber 431. This process is repeated to filter the oil while collecting the filtered impurities in time and transporting them to the ground for cleaning. This prevents impurities from accumulating underground and affecting the oil's penetration into the sucker pipe 32, thus ensuring the normal oil transportation efficiency. In addition, two limiting blocks 424 are fixed on the surface of the drive rod 422. The distance between the two limiting blocks 424 is greater than the height of the collecting cup 421. The distance between the two limiting blocks 424 and the lowest and highest points of the bottom of the sucker rod 33 in the sucker tube 32 is the same as the height of the collecting cup 421. This ensures that when the sucker rod 33 moves up and down, it has already moved a certain distance before driving the limiting blocks 424 to contact the drive ring 423 and driving the drive ring 423 to move synchronously. While driving the drive ring 423 to move, it ensures that the sucker rod 33 can reach the normal required movement distance and can successfully complete the oil extraction.

[0026] like Figures 7 to 9 As shown, a heat dissipation assembly 50 is provided between the folded bladder 435 and the oil extraction pipe 32. The heat dissipation assembly 50 includes a first partition 51 fixedly connected to the inside of the collection chamber 431. The folded bladder 435 is divided into a cold air chamber 56 and a hot air chamber 57 by a second partition 53. An air blowing pipe 54 is fixedly connected between the bottom of the folded bladder 435 and the oil extraction pipe 32. An air inlet pipe 55 and an air outlet pipe 58 are fixedly connected to the front and rear ends of the folded bladder 435, respectively. A one-way valve 52 is fixedly connected to the inside of the air inlet pipe 55, the air outlet pipe 58, the air blowing pipe 54, the air intake hole 436, and the lower end of the first partition 51. The second partition 53 is a corrugated folded plate. The cold air chamber 56 is connected to the area behind the first partition 51 inside the collection chamber 431 through the air blowing pipe 54. The hot air chamber 57 is connected to the area in front of the first partition 51 inside the collection chamber 431 through the storage chamber 437 and the air intake hole 436. The first partition 51 is L-shaped.

[0027] It should be noted that the first partition 51 divides the collection chamber 431 into two chambers, and the second partition 53 divides the folded bladder 435 into a cold air chamber 56 and a hot air chamber 57. When the folded bladder 435 unfolds as it moves upward with the sucker rod 33, it draws cold air from the outside ground into the cold air chamber 56 through the air inlet pipe 55, while the hot air in the front chamber of the underground collection chamber 431 is drawn into the hot air chamber 57. When the folded bladder 435 contracts as it moves downward with the sucker rod 33, the cold air in the cold air chamber 56 is blown into the collection chamber 431 through the air blowing pipe 54. The piston tube 36 enters the cavity at the rear end of the chamber and then enters the cavity at the front end of the collection chamber 431 through the one-way valve 52 at the bottom of the first partition 51 when the folded bladder 435 is unfolded. This causes air circulation to form inside the collection chamber 431. Cold air from outside the ground enters the collection chamber 431 to cool the piston tube 36, which moves repeatedly. The hot air is then discharged to the ground through the circulation. This prevents the piston tube 36 from repeatedly moving and rubbing against the oil extraction pipe 32, which would cause the lubrication effect and sealing between the piston tube 36 and the oil extraction pipe 32 to increase in temperature and lead to leakage. This ensures that the oil extraction operation is not affected and can be operated stably.

[0028] like Figure 3 and Figure 10 As shown, the bottom of the filter plate 41 is provided with an anti-clogging component 60. The anti-clogging component 60 includes a fixed shaft 61 fixedly connected to the bottom of the filter plate 41, and a sleeve 62 is movably connected to the outside of the fixed shaft 61. A cleaning brush 63 is fixedly connected to the outside of the sleeve 62, and a spiral groove 64 is opened inside the sleeve 62. A slider 65 adapted to the spiral groove 64 is fixedly connected to the outside of the fixed shaft 61. The weight of the sleeve 62 is greater than the resistance encountered by the sleeve 62 when sliding along the outside of the fixed shaft 61.

[0029] It should be noted that as the drive rod 422 moves upward, it will cause the limit block 424 to contact the sleeve 62 and push the sleeve 62 to move upward synchronously. When the sleeve 62 moves upward, the spiral groove 64 on its inner wall will slide along the slider 65 outside the fixed shaft 61, causing the sleeve 62 to rotate. During the rotation of the sleeve 62, the cleaning brush 63 will rotate synchronously, thereby using the cleaning brush 63 to clean the impurities attached to the surface of the filter plate 41, preventing impurities from adhering to the filter plate 41 and causing the filter plate 41 to become clogged, and ensuring that the filter plate 41 can effectively filter impurities in the oil.

[0030] like Figure 4 and Figure 11 As shown, a stable closing assembly 70 is provided between the valve seat 37 and the valve body 38. The stable closing assembly 70 includes a limiting rod 71 fixedly connected between the valve seat 37 and the valve body 38, and the surface of the limiting rod 71 is provided with a spiral protrusion 72. The lower end of the valve body 38 is fixedly connected to a limiting seat 73 by a second spring 74.

[0031] It should be noted that when the sucker rod 33 moves up and down, the small ball on the valve seat 37 also moves up and down, thereby controlling the opening and closing of the opening on the valve seat 37. When the small ball moves up and down, the limiting rod 71 limits the small ball from all sides to prevent the trajectory of the small ball from changing after moving up and down, which would prevent it from being unable to seal the opening on the valve seat 37. At the same time, the spiral protrusions 72 on the surface of the limiting rod 71 will generate friction with the small ball when the small ball moves up and down and drive the small ball to rotate. When the small ball rotates, the spiral protrusions 72 will wipe the surface of the small ball in all directions, which can remove impurities attached to the surface of the small ball. This avoids the situation where impurities attached to the surface of the small ball cause the small ball to fall and seal the opening of the valve seat 37, resulting in a leak due to impurities, which affects the oil pumping effect. This ensures the stable operation of the oil pumping operation.

[0032] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A petroleum conveying device with impurity-assisted filtering function, comprising a base (10) and a driving assembly (20) and an oil pumping assembly (30) arranged at the upper end of the base, characterized in that: The oil pumping assembly (30) comprises an oil pumping pipe (32) movably connected to the base (10) by a fixing base (31), the inside of the oil pumping pipe (32) is slidably connected with an oil pumping rod (33), the upper end of the oil pumping rod (33) is fixedly connected with a guide pipe (34), the lower end of the oil pumping rod (33) is fixedly connected with a piston pipe (36), the piston pipe (36) and the bottom of the oil pumping pipe (32) are fixedly connected with a valve seat (37) and a valve body (38) from bottom to top respectively; The inside of the oil pumping pipe (32) is provided with a filtering assembly (40) for filtering impurities in oil, the filtering assembly (40) comprises a filtering plate (41) fixedly connected to the inside of the oil pumping pipe (32), and the inside of the oil pumping pipe (32) below the filtering plate (41) is provided with an impurity collecting unit (42), and the impurity collecting unit (42) and the fixing base (31) are provided with an impurity cleaning unit (43).

2. The petroleum delivery device with the impurity-assisted filtering function according to claim 1, characterized in that: The impurity collecting unit (42) comprises an accumulation cup (421) fixedly connected to the inside of the oil pumping pipe (32), the lower end of the valve seat (37) is fixedly connected with a driving rod (422), the lower end of the driving rod (422) is movably connected with a driving ring (423), the surface of the driving rod (422) is fixedly connected with a limiting block (424) above and below the accumulation cup (421), and the outer side of the upper part of the accumulation cup (421) is fixedly connected with a sealing ring (425).

3. The petroleum delivery device with the impurity-assisted filtering function according to claim 2, characterized in that: The middle part of the outer circular surface of the accumulation cup (421) is recessed inward, and a gap is left between the top of the accumulation cup (421) and the oil pumping pipe (32).

4. The petroleum delivery device with the impurity-assisted filtering function according to claim 3, characterized in that: The impurity cleaning unit (43) comprises a collecting cavity (431) opened on both sides of the oil pumping pipe (32), the bottom opening of the collecting cavity (431) is fixedly connected with a sealing block (432), the sealing block (432) and the collecting cavity (431) are fixedly connected with a first spring (433), the upper end of the sealing block (432) is stepped, the sealing block (432) and the sealing ring (425) are fixedly connected with a top column (434), the upper end of the fixing base (31) is fixedly connected with a folding capsule (435), the top of the oil pumping pipe (32) is provided with an air inlet hole (436), the top of the fixing base (31) is provided with a storage cavity (437), and the top of the storage cavity (437) is fixedly connected with an intercepting mesh plate (438).

5. The petroleum delivery device with the impurity-assisted filtering function according to claim 4, characterized in that: The heat dissipation assembly (50) is arranged between the folding capsule (435) and the oil pumping pipe (32), the heat dissipation assembly (50) comprises a first partition plate (51) fixedly connected to the inside of the collecting cavity (431), the folding capsule (435) is separated into a cold air cavity (56) and a hot air cavity (57) by a second partition plate (53), a blowing pipe (54) is fixedly connected between the bottom of the folding capsule (435) and the oil pumping pipe (32), an air inlet pipe (55) and an air outlet pipe (58) are fixedly connected to the front end and the rear end of the folding capsule (435) respectively, and the inside of the air inlet pipe (55), the inside of the air outlet pipe (58), the inside of the blowing pipe (54), the air suction hole (436) and the lower end of the first partition plate (51) are fixedly connected with a one-way valve (52).

6. The petroleum delivery device with the impurity-assisted filtering function according to claim 5, characterized in that: The second partition plate (53) is a corrugated folding plate, the cold air cavity (56) is communicated with the area behind the first partition plate (51) in the inside of the collecting cavity (431) through the blowing pipe (54), the hot air cavity (57) is communicated with the area in front of the first partition plate (51) in the inside of the collecting cavity (431) through the storage cavity (437) and the air suction hole (436), and the first partition plate (51) is in L shape.

7. The petroleum delivery device with the impurity-assisted filtering function according to claim 1, characterized in that: The bottom of the filter plate (41) is provided with an anti-blocking assembly (60), the anti-blocking assembly (60) comprises a fixed shaft (61) fixedly connected to the bottom of the filter plate (41), a sleeve (62) movably connected to the outside of the fixed shaft (61), a cleaning brush (63) fixedly connected to the outside of the sleeve (62), and a spiral groove (64) formed in the inside of the sleeve (62), and a sliding block (65) fixedly connected to the outside of the fixed shaft (61) and matched with the spiral groove (64).

8. The petroleum delivery device with the impurity-assisted filtering function according to claim 7, characterized in that: The gravity of the sleeve (62) is greater than the resistance of the sleeve (62) sliding along the outside of the fixed shaft (61).

9. The petroleum delivery device with the impurity-assisted filtering function according to claim 1, characterized in that: The valve seat (37) and the valve body (38) are provided with a stable closing assembly (70), the stable closing assembly (70) comprises a limiting rod (71) fixedly connected between the valve seat (37) and the valve body (38), and the surface of the limiting rod (71) is provided with a spiral protrusion (72), and the lower end of the valve body (38) is fixedly connected with a limiting seat (73) through a second spring (74).

10. The petroleum delivery device with the impurity-assisted filtering function according to claim 1, characterized in that: The driving assembly (20) comprises a motor (28), a speed reducer (27) and a support (21) fixedly connected to the upper end of the base (10), the upper end of the support (21) is movably connected with a horse head (23) through a walking beam (22), the outside of the horse head (23) is fixedly connected with a pull rope (24), one end of the pull rope (24) is connected with the oil pumping rod (33) through a rope hanger (35), one end of the walking beam (22) is rotatably connected with a crank (25), the crank (25) is rotatably connected with the speed reducer (27) through a balancer (26), and the output shaft of the motor (28) is rotatably connected with the speed reducer (27) through a belt (29).

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