An integrated fixed valve tube oil pump

Abstract

and a tube connecting the discharging opening of the pump with a check valve in it, and a check valve in it at the pump end, and a check valve in it at the pump end, and a check valve in it at the pump end.

Description

Technical Field

[0001] The present invention relates to the technical field of oil well pumps, in particular to an integrated fixed valve tube type oil well pump. Background Art

[0002] A wellbore pump is a common downhole device that is driven by a pumping unit to pump crude oil from a well to the surface. A common wellbore pump consists of four main parts: a pump barrel, a suction valve, a piston, and a discharge valve. Based on how the pump is fixed downhole, it can be divided into a tube pump and a rod pump. Its working principle is based on pressure difference and piston motion. Through the coordinated action of downhole pump barrels, plungers, and other components, it lifts crude oil from the formation to the surface.

[0003] However, in actual use, we found that when the existing tubular oil pump was working in an inclined well, the valve body was easily offset due to the influence of the well inclination angle, resulting in a decrease in sealing performance, reduced pump efficiency, and even damage to the pump body, seriously affecting the oil well production. The greater the well inclination angle, the more significant the problem. Therefore, we proposed an integrated fixed valve tubular oil pump. Summary of the Invention

[0004] A technical problem to be solved by this application is: how to ensure the stability and sealing performance of the valve body when the tubular oil pump is pumping oil in an inclined well, avoid valve body deviation caused by the well inclination angle, thereby improving pump efficiency and extending service life, and ensuring stable oil well production.

[0005] In order to solve the above technical problems, the embodiment of the present application provides an integrated fixed valve tube type oil pump, including an oil suction pump barrel, an oil discharge piston is slidably arranged in the pump barrel, and also includes

[0006] An oil suction valve is arranged in the oil suction pump barrel, a first baffle plate is arranged in the oil suction pump barrel, and the oil suction valve is slidably and penetrates the first baffle plate;

[0007] an oil drain valve disposed in the oil drain piston, a second baffle plate being disposed at the bottom of the oil drain piston, and the oil drain valve slidingly penetrating the second baffle plate;

[0008] Two sets of support positioning members are provided, and the two sets of support positioning members are respectively arranged on the outside of the oil suction valve and the oil discharge valve, and the two sets of support positioning members are respectively used to drive the oil suction valve and the oil discharge valve to always slide on the corresponding first baffle plate and second baffle plate axis;

[0009] The oil suction valve is slid upward in the first baffle plate to drive crude oil into the oil suction pump barrel, and the oil suction valve is slid downward to prevent the crude oil in the oil suction pump barrel from flowing back. The oil discharge valve is slid upward in the second baffle plate to drive the crude oil in the oil suction pump barrel into above the oil discharge piston through the oil discharge valve, and the oil discharge piston slides downward in the second baffle plate to drive the crude oil above the oil discharge piston to be discharged through the top of the oil suction pump barrel.

[0010] In some embodiments, the oil suction valve includes an oil suction pipe slidably arranged in the first baffle plate, the outer wall of the oil suction pipe is completely fitted with the inner wall of the first baffle plate, a first airtight plate is provided on the top of the oil suction pipe, an oil suction cover is provided at the bottom of the oil suction pipe, and a plurality of oil suction grooves are opened on the top of the oil suction pipe, and the plurality of oil suction grooves are connected to the bottom of the oil suction pump barrel through the oil suction pipe and the oil suction cover.

[0011] In some embodiments, the oil drain valve includes an oil drain pipe slidably arranged in the second baffle plate, the outer wall of the oil drain pipe is completely fitted with the inner wall of the second baffle plate, a second airtight plate is provided on the top of the oil drain pipe, an oil drain cover is provided on the bottom of the oil drain pipe, and the outer side of the oil drain cover is completely fitted with the inner wall of the oil suction pump barrel, and its top is fitted with the bottom of the second airtight plate, a plurality of oil drain grooves are opened on the top of the oil drain pipe, and the plurality of oil drain grooves are driven to communicate with the top and bottom of the second baffle plate through the oil drain pipe and the oil drain cover.

[0012] In some embodiments, the supporting positioning member includes a support frame respectively arranged on the outside of the first airtight plate and the second airtight plate, and the end of the support frame away from the first airtight plate and the second airtight plate is provided with balls through a rotating shaft, and the balls are respectively rolled on the inner walls of the corresponding oil suction pump barrel and oil discharge piston.

[0013] In some embodiments, in the two groups of support positioning members, each group of support positioning members has three support frames, the three support frames are evenly distributed at 120 degrees, and the balls of each support frame slide on the inner wall of the oil suction pump barrel and the oil discharge piston respectively.

[0014] In some embodiments, sealing strips are provided at the bottom of the first airtight plate and the bottom of the second airtight plate, and the sealing strips are made of rubber. Sealing grooves for use with the two sealing strips are provided at the top of the first airtight plate and the second airtight plate.

[0015] In some embodiments, a filter plate is provided at the bottom of the oil absorption hood, and a rotating shaft is rotatably provided at the bottom of the filter plate. The rotating shaft is located at the axis of the filter plate, and a cleaning plate is rotatably provided on the outside of the rotating shaft, and the top of the cleaning plate is fitted with the bottom of the filter plate. An adjusting rod is slidingly provided at one end of the cleaning plate away from the rotating shaft, and an adjusting spring is provided on the outside of the adjusting rod, and the other end of the adjusting spring is provided on the cleaning plate.

[0016] In some embodiments, a guide groove is provided on the inner wall of the oil suction pump barrel, and the guide groove is located below the first baffle plate. The guide groove is a spiral structure, and the end of the adjustment rod away from the cleaning plate is slidably arranged in the guide groove.

[0017] In some embodiments, a reset groove is provided on the inner wall of the oil suction pump barrel for use with the adjusting rod. The reset groove is a linear structure, and the two ends of the reset groove are respectively connected to the top and bottom ends of the guide groove. The depth of the top end of the reset groove is slightly shallower than that of the top end of the guide groove, and the depth of the bottom end of the reset groove is slightly deeper than that of the bottom end of the guide groove, and the reset groove is sloped.

[0018] The present invention has at least the following beneficial effects:

[0019] Through the reasonable arrangement of the oil suction valve, oil discharge valve and supporting positioning parts, the oil suction valve and the oil discharge valve are ensured to slide stably at the axis of the first baffle plate and the second baffle plate respectively, thereby ensuring the normal operation of the oil pump. The supporting positioning parts provide stable support for the oil suction valve and the oil discharge valve through the structural design of the support frame and the ball, so that the ball rolls on the inner wall of the oil suction pump barrel and the oil discharge piston respectively, reducing friction and ensuring smooth sliding, so that the oil suction pump barrel can adapt to the well wall at different angles when entering the inclined well to work, avoiding the jamming phenomenon caused by the excessive inclination angle of the oil suction pump barrel and the oil well, improving the oil pumping efficiency, extending the service life of the equipment, and ensuring the stability and safety of oil well exploitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the structural side section;

[0022] Figure 3 It is a side sectional schematic diagram of the oil discharge piston structure of the present invention;

[0023] Figure 4 It is a side cross-sectional schematic diagram of the oil discharge valve structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the supporting and positioning member structure of the present invention;

[0025] Figure 6 It is a side cross-sectional schematic diagram of the oil suction valve structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the guide groove structure of the present invention;

[0027] Figure 8 It is a side cross-sectional schematic diagram of the filter plate structure of the present invention;

[0028] Figure 9 It is a side sectional schematic diagram of the reset groove structure of the present invention;

[0029] Figure 10 This is a schematic diagram of the adjusting spring structure of the present invention.

[0030] In the figure: 1. Oil suction pump barrel; 2. Oil discharge piston; 3. Oil suction valve; 31. Oil suction pipe; 32. First airtight plate; 33. Oil suction cover; 34. Oil suction groove; 4. First baffle plate; 5. Oil discharge valve; 51. Oil discharge pipe; 52. Second airtight plate; 53. Oil discharge cover; 54. Oil discharge groove; 6. Second baffle plate; 7. Support positioning member; 71. Support frame; 72. Ball bearing; 8. Sealing strip; 9. Sealing groove; 10. Filter plate; 11. Rotating shaft; 12. Cleaning plate; 13. Guide groove; 14. Reset groove; 15. Adjusting rod; 16. Adjusting spring. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figure 1-10 The present invention provides a technical solution: an integrated fixed valve tube oil pump, comprising an oil suction pump barrel 1, an oil discharge piston 2 slidingly arranged in the pump barrel, and

[0033] The oil suction valve 3 is arranged in the oil suction pump barrel 1. A first baffle plate 4 is arranged in the oil suction pump barrel 1. The oil suction valve 3 slides and penetrates the first baffle plate 4.

[0034] The oil discharge valve 5 is arranged in the oil discharge piston 2. A second baffle plate 6 is provided at the bottom of the oil discharge piston 2. The oil discharge valve 5 slides and penetrates the second baffle plate 6.

[0035] Two sets of support positioning members 7 are provided, and the two sets of support positioning members 7 are respectively arranged on the outside of the oil suction valve 3 and the oil discharge valve 5. The two sets of support positioning members 7 are used to drive the oil suction valve 3 and the oil discharge valve 5 to always slide on the corresponding axis of the first baffle plate 4 and the second baffle plate 6;

[0036] The oil suction valve 3 is slid upward in the first baffle plate 4 to drive the crude oil into the oil suction pump barrel 1, and the oil suction valve 3 is slid downward to prevent the crude oil entering the oil suction pump barrel 1 from flowing back. The oil discharge valve 5 is slid upward in the second baffle plate 6 to drive the crude oil in the oil suction pump barrel 1 into the top of the oil discharge piston 2 through the oil discharge valve 5, and the crude oil above the oil discharge piston 2 is driven to be discharged through the top of the oil suction pump barrel 1 through the oil discharge piston 2.

[0037] The oil suction valve 3 includes an oil suction pipe 31 slidably arranged in the first baffle plate 4, the outer wall of the oil suction pipe 31 is completely fitted with the inner wall of the first baffle plate 4, a first airtight plate 32 is provided on the top of the oil suction pipe 31, an oil suction cover 33 is provided at the bottom of the oil suction pipe 31, a plurality of oil suction grooves 34 are opened on the top of the oil suction pipe 31, and the plurality of oil suction grooves 34 are connected to the bottom of the oil suction pump barrel 1 through the oil suction pipe 31 and the oil suction cover 33; when the oil discharge piston 2 moves upward, the oil discharge piston 2 will drive the oil discharge valve 5 on the second baffle plate 6 to move upward together, at this time , the air pressure between the second baffle plate 6 and the first baffle plate 4 changes, causing the first airtight plate 32 to move upward, thereby causing the first airtight plate 32 to drive the oil suction pipe 31 at its bottom to slide inside the first baffle plate 4 until the top of the oil suction cover 33 fits with the bottom of the first baffle plate 4, so that the multiple oil suction grooves 34 at the top of the oil suction pipe 31 are exposed above the first baffle plate 4. At this time, the oil discharge piston 2 continues to move upward. When the air pressure between the oil discharge piston 2 and the first baffle plate 4 changes, the crude oil under the oil suction pump barrel 1 will The oil enters the oil suction pump barrel 1 through the oil suction cover 33, the oil suction pipe 31 and the multiple oil suction grooves 34 on the top of the oil suction pipe 31, and enters the top of the first baffle plate 4. As the oil discharge piston 2 continues to rise, the crude oil is continuously sucked into the oil suction pump barrel 1 until the oil discharge piston 2 can no longer rise. At this time, the air pressure above and below the oil discharge piston 2 is the same, and the first airtight plate 32 will drop under the action of gravity, and drive the oil suction pipe 31 at its bottom to slide downward together in the first baffle plate 4, so that the multiple oil suction pipes on the top of the oil suction pipe 31 The groove 34 is blocked by the first baffle plate 4 again until the bottom of the first airtight plate 32 is completely fitted with the top of the first baffle plate 4, and the multiple oil suction grooves 34 are completely blocked and cannot continue to suck oil. The crude oil above the first baffle plate 4 in the oil suction pump barrel 1 cannot flow back through the multiple oil suction grooves 34. Its function is to ensure efficient and stable transportation of crude oil through air pressure regulation and valve body cooperation, and unidirectional flow in the oil suction pump barrel 1 to prevent backflow, improve oil pumping efficiency, ensure stable operation of the system, and extend the service life of the equipment.

[0038] The oil drain valve 5 includes an oil drain pipe 51 slidably arranged in the second baffle plate 6, the outer wall of the oil drain pipe 51 is completely fitted with the inner wall of the second baffle plate 6, a second airtight plate 52 is provided on the top of the oil drain pipe 51, and an oil drain cover 53 is provided on the bottom of the oil drain pipe 51, and the outer side of the oil drain cover 53 is completely fitted with the inner wall of the oil suction pump barrel 1, and its top is fitted with the bottom of the second airtight plate 52, a plurality of oil drain grooves 54 are opened on the top of the oil drain pipe 51, and the plurality of oil drain grooves 54 drive the second baffle plate 6 through the oil drain pipe 51 and the oil drain cover 53. 5 and the second baffle plate 6 are connected; as the power system continues to operate, the oil discharge piston 2 begins to descend, slides downward in the oil suction pump barrel 1, and drives the second baffle plate 6 and the oil discharge valve 5 to descend together. At this time, since multiple oil suction grooves 34 are blocked, crude oil cannot flow back. During the descending process of the oil discharge piston 2, the air pressure between the oil discharge piston 2 and the first baffle plate 4 in the oil suction pump barrel 1 increases, so that the crude oil between the first baffle plate 4 and the second baffle plate 6 is discharged to the second air outlet through the oil discharge cover 53 and the oil discharge pipe 51. The oil pump 2 is pressed against the oil drain pipe 51 and the oil pump 2 is pressed against the oil drain pipe 51 , and the oil drain pipe 51 is pressed against the oil drain pipe 51 .

[0039] The support and positioning member 7 includes a support frame 71 respectively arranged on the outside of the first airtight plate 32 and the second airtight plate 52. The ends of the support frame 71 away from the first airtight plate 32 and the second airtight plate 52 are rotatably provided with balls 72 through a rotating shaft, and the balls 72 are respectively rolled on the inner walls of the corresponding oil suction pump barrel 1 and oil discharge piston 2;

[0040] When workers are extracting crude oil through a vertical well, the support frames 71 disposed on the outside of the first airtight plate 32 and the second airtight plate 52 respectively provide stable support to the first airtight plate 32 and the second airtight plate 52 through the corresponding balls 72, thereby reducing friction and ensuring smooth sliding of the first airtight plate 32 and the second airtight plate 52, thereby effectively reducing energy loss caused by friction and improving the overall operating efficiency of the system.

[0041] When workers are performing crude oil extraction operations through an inclined well, the support frame 71 plays a key supporting role in the inclined well, preventing the first airtight plate 32 and the second airtight plate 52 from getting stuck due to tilting, thereby causing the oil suction pipe 31 or the oil discharge pipe 51 to generate greater friction when sliding in the first baffle plate 4 or the second baffle plate 6, ensuring that it can also slide smoothly in the inclined well, maintaining the normal operation of the oil suction pump system, avoiding efficiency reduction or equipment damage due to jamming, and thus ensuring the smooth progress of crude oil extraction in the inclined well.

[0042] In the two groups of support positioning members 7, each group of support positioning members 7 has three support frames 71, and the three support frames 71 are evenly distributed at 120 degrees, and the balls 72 of each support frame 71 slide on the inner walls of the oil suction pump barrel 1 and the oil discharge piston 2 respectively; three support frames 71 are respectively arranged on the outside of the first airtight plate 32 and the second airtight plate 52. The purpose is to utilize the stability of the triangle to ensure that the first airtight plate 32 and the second airtight plate 52 will not tilt or shift when sliding, thereby ensuring the operating accuracy and stability of the entire oil suction pump system, making the crude oil extraction process efficient and continuous. Its function is to effectively disperse pressure, reduce wear, and extend component life through precise geometric distribution and mechanical support, ensuring stable and efficient operation under various well conditions, and improving the overall efficiency of crude oil extraction.

[0043] The bottom of the first airtight plate 32 and the bottom of the second airtight plate 52 are both provided with a sealing strip 8, which is made of rubber. The top of the first airtight plate 32 and the second airtight plate 52 are both provided with a sealing groove 9 used in conjunction with the two sealing strips 8;

[0044] When the bottom of the first airtight plate 32 or the bottom of the second airtight plate 52 is in contact with the top of the corresponding first barrier plate 4 or the top of the second barrier plate 6, the sealing strips 8 respectively arranged at the bottom of the first airtight plate 32 and the second airtight plate 52 will enter the corresponding sealing groove 9 to form a sealed state, preventing air pressure or crude oil leakage, ensuring the airtightness and safety of the entire system, and further improving the efficiency of crude oil extraction and the reliability of the equipment, so that the crude oil extraction operation can be carried out efficiently and stably whether in a vertical well or an inclined well, and the sealing strip 8 can also play a buffering role, reducing the collision and wear between the first airtight plate 32 or the second airtight plate 52 and the first barrier plate 4 or the second barrier plate 6, extending the service life of the equipment, and ensuring the stability and safety of long-term operation. At the same time, the sealing strip 8 is designed with high-temperature resistant and corrosion-resistant materials to cope with the complex environment in the well, enhance the sealing effect, and ensure excellent performance under various working conditions.

[0045] A filter plate 10 is provided at the bottom of the oil absorption cover 33. A rotating shaft 11 is rotatably provided at the bottom of the filter plate 10. The rotating shaft 11 is located at the axis of the filter plate 10. A cleaning plate 12 is rotatably provided on the outer side of the rotating shaft 11, and the top of the cleaning plate 12 is in contact with the bottom of the filter plate 10. An adjusting rod 15 is slidably provided on the end of the cleaning plate 12 away from the rotating shaft 11, and an adjusting spring 16 is provided on the outer side of the adjusting rod 15. The other end of the adjusting spring 16 is provided on the cleaning plate 12.

[0046] When the oil suction valve 3 moves upward, the filter plate 10 provided at the bottom of the oil suction cover 33 will rise accordingly. The filter plate 10 can effectively intercept impurities and prevent them from entering the oil suction pipe 31. When the oil suction valve 3 moves upward, multiple oil suction grooves 34 are exposed. Crude oil enters the oil suction groove 34 through the filter plate 10 at the bottom of the oil suction cover 33 and enters the oil suction pump barrel 1 through the oil suction pipe 31 to ensure the purity of the crude oil. At this time, the cleaning plate 12 provided at the bottom of the filter plate 10 is rotated by the rotating shaft 11 and moves upward with the filter plate 10. The adjusting rod 15 provided at one end of the cleaning plate 12 slides in the reset groove 14 and resets the oil. The groove 14 limits the adjusting rod 15 so that the adjusting rod 15 can only slide upward, thereby causing the cleaning plate 12 outside the adjusting rod 15 to move upward. At this time, the cleaning plate 12 does not rotate when following the upward movement of the filter plate 10. When the oil suction valve 3 moves downward, the filter plate 10 set at the bottom of the oil suction cover 33 drops accordingly, and the cleaning plate 12 will move downward together with the filter plate 10. When the oil suction valve 3 moves downward, the crude oil entering the oil suction cover 33 through the oil suction valve 3 begins to slowly decrease, and the cleaning plate 12 that follows the downward movement of the filter plate 10 will be guided by the adjusting rod 15 and the limiting effect of the guide groove 13 on the adjusting rod 15. , so that the cleaning plate 12 rotates along the spiral direction of the guide groove 13, and then the cleaning plate 12 can rotate at the bottom of the filter plate 10 during the descent of the filter plate 10, so that the cleaning plate 12 can effectively remove impurities at the bottom of the filter plate 10, ensuring that the filter plate 10 is always kept clean, avoiding the accumulation of impurities affecting the flow of crude oil, thereby ensuring the efficient operation of the oil suction pump system and the continuity of crude oil extraction, and improving the overall operation efficiency. The slope of the reset groove 14 and the design of different depths of its two ends and the guide groove 13 can prevent the adjusting rod 15 from entering the guide groove 13 when it moves upward, ensuring that the cleaning plate 12 is only when it is descending. When the adjusting rod 15 is moved in the reset groove 14 and the guide groove 13, the adjusting spring 16 arranged on the outside of the adjusting rod 15 can automatically adjust the elastic force according to the different depths and slopes of the guide groove 13 and the reset groove 14, ensuring that the adjusting rod 15 is stable and reliable during the sliding process. The elastic adjustment mechanism of the adjusting spring 16 further optimizes the coordinated operation of the cleaning plate 12 and the filter plate 10, and improves the adaptability of the cleaning plate 12, ensuring that impurities can be efficiently removed under different well conditions, and maintaining the high purity and continuity of crude oil extraction.

[0047] A guide groove 13 is formed on the inner wall of the oil suction pump barrel 1 and is located below the first baffle plate 4 . The guide groove 13 is a spiral structure, and the end of the adjustment rod 15 away from the cleaning plate 12 is slidably disposed in the guide groove 13 .

[0048] A reset groove 14 is provided on the inner wall of the oil suction pump barrel 1 for use with the adjusting rod 15. The reset groove 14 is a linear structure, and the two ends of the reset groove 14 are respectively connected to the top and bottom ends of the guide groove 13. The depth of the top end of the reset groove 14 is slightly shallower than the top end of the guide groove 13, and the depth of the bottom end of the reset groove 14 is slightly deeper than the bottom end of the guide groove 13, and the reset groove 14 is sloped.

[0049] During use, when the staff needs to carry out downhole oil pumping operations, the oil suction pump barrel 1 is placed in the well according to regulations, and then the power system of the oil pump is started, so that the oil discharge piston 2 slides in the oil suction pump barrel 1. In the initial state, the oil discharge piston 2 is located at the bottom of the oil suction pump barrel 1 and above the first baffle 4. As the power system is driven, the oil discharge piston 2 rises. The power system is existing technology and will not be described in detail here.

[0050] When the oil discharge piston 2 moves upward, the oil discharge piston 2 will drive the oil discharge valve 5 on the second baffle plate 6 to move upward together. At this time, the air pressure between the second baffle plate 6 and the first baffle plate 4 changes, causing the first airtight plate 32 to move upward, thereby causing the first airtight plate 32 to drive the oil suction pipe 31 at its bottom to slide inside the first baffle plate 4 until the top of the oil suction cover 33 fits with the bottom of the first baffle plate 4, so that the multiple oil suction grooves 34 at the top of the oil suction pipe 31 are exposed above the first baffle plate 4. At this time, the oil discharge piston 2 continues to move upward. When the air pressure between the oil discharge piston 2 and the first baffle plate 4 changes, the crude oil under the oil suction pump barrel 1 will pass through the oil suction cover 33, the oil suction pipe 31 and the multiple oil suction grooves 34 at the top of the oil suction pipe 31. 4 enters the oil suction pump barrel 1 and enters above the first baffle plate 4. As the oil discharge piston 2 continues to rise, crude oil is continuously sucked into the oil suction pump barrel 1 until the oil discharge piston 2 can no longer rise. At this time, the air pressure above and below the oil discharge piston 2 is the same, and the first airtight plate 32 will descend under the action of gravity, driving the oil suction pipe 31 at its bottom to slide downward inside the first baffle plate 4, so that the multiple oil suction grooves 34 at the top of the oil suction pipe 31 are again blocked by the first baffle plate 4 until the bottom of the first airtight plate 32 is completely in contact with the top of the first baffle plate 4. The multiple oil suction grooves 34 are completely blocked, and the oil suction action can no longer be continued. The crude oil in the oil suction pump barrel 1 above the first baffle plate 4 cannot flow back through the multiple oil suction grooves 34.

[0051] As the power system continues to operate, the oil discharge piston 2 begins to descend and slides downward in the oil suction pump barrel 1, driving the second baffle plate 6 and the oil discharge valve 5 to descend together. At this time, since the multiple oil suction grooves 34 are blocked, the crude oil cannot flow back. During the descending process of the oil discharge piston 2, the air pressure between the oil discharge piston 2 and the first baffle plate 4 in the oil suction pump barrel 1 increases, so that the crude oil between the first baffle plate 4 and the second baffle plate 6 is lifted up by the oil discharge cover 53 and the oil discharge pipe 51, so that the second airtight plate 52 drives the oil discharge pipe 51 at its bottom to slide in the second baffle plate 6 until the multiple oil discharge grooves 54 at the top of the oil discharge pipe 51 are exposed above the second baffle plate 6. At this time, the squeezed crude oil will be discharged through the multiple oil discharge grooves 54 and reach the second baffle plate 6 On the other hand, as the oil discharge piston 2 continues to descend, the crude oil is continuously squeezed to above the second baffle plate 6 until the oil discharge piston 2 can no longer descend. At this time, there is little crude oil left in the oil suction pump barrel 1, and the power system drives the oil discharge piston 2 upward again. At this time, the second airtight plate 52 drives the oil discharge pipe 51 to slide downward under the action of gravity and the air pressure between the second baffle plate 6 and the first baffle plate 4, until the multiple oil discharge grooves 54 are blocked and the crude oil stops being discharged. As the oil discharge piston 2 continues to rise, the multiple oil suction grooves 34 at the top of the oil suction pipe 31 are exposed again, and the crude oil located below the oil suction pump barrel 1 enters the pump barrel again through the oil suction cover 33, the oil suction pipe 31 and the oil suction grooves 34, repeating the cycle to ensure continuous delivery of crude oil and stable operation of the power system.

[0052] When the staff performs crude oil extraction operations through the vertical well, the support frames 71 respectively arranged on the outside of the first airtight plate 32 and the second airtight plate 52 will provide stable support to the first airtight plate 32 and the second airtight plate 52 through the corresponding balls 72, thereby reducing friction and ensuring that the first airtight plate 32 and the second airtight plate 52 slide smoothly. At the same time, three support frames 71 are respectively arranged on the outside of the first airtight plate 32 and the second airtight plate 52. The purpose is to utilize the stability of the triangle to ensure that the first airtight plate 32 and the second airtight plate 52 will not tilt or deflect when sliding, thereby ensuring the operating accuracy and stability of the entire oil suction pump system, making the crude oil extraction process efficient and continuous.

[0053] When workers are extracting crude oil through the inclined well, the support frame 71 plays a key supporting role in the inclined well, preventing the first airtight plate 32 and the second airtight plate 52 from getting stuck due to the tilt, thereby causing the oil suction pipe 31 or the oil discharge pipe 51 to generate greater friction when sliding in the first baffle plate 4 or the second baffle plate 6, ensuring that they can also slide smoothly in the inclined well, maintaining the normal operation of the oil suction pump system, avoiding efficiency reduction or equipment damage caused by jamming, and thus ensuring the smooth progress of crude oil extraction in the inclined well;

[0054] When the bottom of the first airtight plate 32 or the bottom of the second airtight plate 52 is in contact with the top of the corresponding first baffle plate 4 or the top of the second baffle plate 6, the sealing strips 8 respectively arranged at the bottom of the first airtight plate 32 and the second airtight plate 52 will enter the corresponding sealing groove 9, forming a sealed state to prevent air pressure or crude oil leakage, thereby ensuring the airtightness and safety of the entire system, further improving the efficiency of crude oil extraction and the reliability of the equipment, so that the crude oil extraction operation can be carried out efficiently and stably regardless of whether it is a vertical well or an inclined well, and the sealing strips 8 can also play a buffering role, reducing the collision and wear between the first airtight plate 32 or the second airtight plate 52 and the first baffle plate 4 or the second baffle plate 6, extending the service life of the equipment, and ensuring the stability and safety of long-term operation. At the same time, the sealing strips 8 are designed with high-temperature resistant and corrosion-resistant materials to cope with the complex environment in the well, enhance the sealing effect, and ensure that excellent performance can be maintained under various working conditions;

[0055] When the oil suction valve 3 moves upward, the filter plate 10 provided at the bottom of the oil suction cover 33 will rise accordingly. The filter plate 10 can effectively intercept impurities and prevent them from entering the oil suction pipe 31. When the oil suction valve 3 moves upward, multiple oil suction grooves 34 are exposed. Crude oil enters the oil suction groove 34 through the filter plate 10 at the bottom of the oil suction cover 33 and enters the oil suction pump barrel 1 through the oil suction pipe 31 to ensure the purity of the crude oil. At this time, the cleaning plate 12 provided at the bottom of the filter plate 10 is rotated by the rotating shaft 11 and moves upward with the filter plate 10. The adjusting rod 15 provided at one end of the cleaning plate 12 slides in the reset groove 14 and resets the oil. The groove 14 limits the adjusting rod 15 so that the adjusting rod 15 can only slide upward, thereby causing the cleaning plate 12 outside the adjusting rod 15 to move upward. At this time, the cleaning plate 12 does not rotate when following the upward movement of the filter plate 10. When the oil suction valve 3 moves downward, the filter plate 10 set at the bottom of the oil suction cover 33 drops accordingly, and the cleaning plate 12 will move downward together with the filter plate 10. When the oil suction valve 3 moves downward, the crude oil entering the oil suction cover 33 through the oil suction valve 3 begins to slowly decrease, and the cleaning plate 12 that follows the downward movement of the filter plate 10 will be guided by the adjusting rod 15 and the limiting effect of the guide groove 13 on the adjusting rod 15. , so that the cleaning plate 12 rotates along the spiral direction of the guide groove 13, and then the cleaning plate 12 can rotate at the bottom of the filter plate 10 during the descent of the filter plate 10, so that the cleaning plate 12 can effectively remove impurities at the bottom of the filter plate 10, ensuring that the filter plate 10 is always kept clean, avoiding the accumulation of impurities affecting the flow of crude oil, thereby ensuring the efficient operation of the oil suction pump system and the continuity of crude oil extraction, and improving the overall operation efficiency. The slope of the reset groove 14 and the design of different depths of its two ends and the guide groove 13 can prevent the adjusting rod 15 from entering the guide groove 13 when it moves upward, ensuring that the cleaning plate 12 is only when it is descending. The adjusting rod 15 rotates and remains stationary when rising to avoid interfering with the normal rise of the filter plate 10 and the smooth passage of crude oil. When the adjusting rod 15 slides in the reset groove 14 and the guide groove 13, the adjusting spring 16 arranged on the outside of the adjusting rod 15 can automatically adjust the elastic force according to the different depths and slopes of the guide groove 13 and the reset groove 14, ensuring that the adjusting rod 15 is stable and reliable during the sliding process. The elastic adjustment mechanism of the adjusting spring 16 further optimizes the coordinated operation of the cleaning plate 12 and the filter plate 10, improves the adaptability of the cleaning plate 12, ensures that impurities can be efficiently removed under different well conditions, and maintains the high purity and continuity of crude oil extraction;

[0056] This circulation process not only efficiently utilizes air pressure changes, but also minimizes crude oil leakage through precise mechanical coordination, improves oil pumping efficiency, ensures the stability and reliability of the entire system, and provides a solid guarantee for long-term operation. At the same time, this design effectively reduces maintenance frequency, reduces downtime caused by mechanical failures, extends equipment service life, and further improves overall economic benefits.

[0057] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0058] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An integrated fixed valve tube oil pump, comprising an oil suction pump barrel (1), wherein an oil discharge piston (2) is slidably arranged in the oil suction pump barrel (1), characterized in that: Also includes: An oil suction valve (3) is arranged in the oil suction pump barrel (1), and a first baffle (4) is arranged in the oil suction pump barrel (1); An oil discharge valve (5) is arranged in the oil discharge piston (2), a second baffle plate (6) is arranged at the bottom of the oil discharge piston (2), and the oil suction valve (3) and the oil discharge valve (5) are respectively slidably arranged in and penetrate the first baffle plate (4) and the second baffle plate (6); The oil suction valve (3) includes an oil suction pipe (31) slidably arranged in the first baffle plate (4), the outer wall of the oil suction pipe (31) is completely fitted with the inner wall of the first baffle plate (4), a first airtight plate (32) is arranged on the top of the oil suction pipe (31), an oil suction cover (33) is arranged on the bottom of the oil suction pipe (31), and a plurality of oil suction grooves (34) are opened on the top, and the plurality of oil suction grooves (34) are connected to the bottom of the oil suction pump barrel (1) through the oil suction pipe (31) and the oil suction cover (33); The oil drain valve (5) includes an oil drain pipe (51) slidably arranged in the second baffle plate (6), the outer wall of the oil drain pipe (51) is in contact with the inner wall of the second baffle plate (6), the top of the oil drain pipe (51) is provided with a second airtight plate (52), the bottom is provided with an oil drain cover (53), the outer side of the oil drain cover (53) is in contact with the inner wall of the oil suction pump barrel (1), the top of the oil drain cover (53) is in contact with the bottom of the second airtight plate (52), and a plurality of oil drain grooves (54) are provided on the top of the oil drain pipe (51), and the plurality of oil drain grooves (54) are driven to communicate with the upper part and the lower part of the second baffle plate (6) through the oil drain pipe (51) and the oil drain cover (53); A filter plate (10) is provided at the bottom of the oil absorption cover (33), a rotating shaft (11) is rotatably provided at the bottom of the filter plate (10), the rotating shaft (11) is located at the axis of the filter plate (10), a cleaning plate (12) is rotatably provided outside the rotating shaft (11), the top of the cleaning plate (12) is in contact with the bottom of the filter plate (10), an adjusting rod (15) is slidably provided at one end of the cleaning plate (12) away from the rotating shaft (11), and an adjusting spring (16) is provided outside the adjusting rod (15); The inner wall of the oil suction pump barrel (1) is provided with a guide groove (13), which is located below the first baffle plate (4) and has a spiral structure. The end of the regulating rod (15) away from the cleaning plate (12) is slidably arranged in the guide groove (13); The inner wall of the oil suction pump barrel (1) is provided with a reset groove (14) for use with the regulating rod (15), the reset groove (14) is a linear structure, the two ends of the reset groove (14) are respectively connected to the top and bottom of the guide groove (13), the top of the reset groove (14) is shallower than the top of the guide groove (13), the bottom of the reset groove (14) is deeper than the bottom of the guide groove (13), and the reset groove (14) is sloped; A group of supporting positioning members (7) is respectively provided on the outside of the oil suction valve (3) and the oil discharge valve (5). The two groups of supporting positioning members (7) respectively drive the oil suction valve (3) and the oil discharge valve (5) to always slide on the axis of the corresponding first baffle plate (4) and the second baffle plate (6), including support frames (71) respectively provided on the outside of the first airtight plate (32) and the second airtight plate (52). The ends of the support frames (71) away from the first airtight plate (32) and the second airtight plate (52) are provided with balls (72) through a rotating shaft, and the balls (72) are respectively rolled on the inner walls of the corresponding oil suction pump barrel (1) and the oil discharge piston (2).

2. The integrated fixed valve tube oil well pump according to claim 1, characterized in that: In the two groups of support positioning members (7), each group of support positioning members (7) has three support frames (71), the three support frames (71) are evenly distributed at 120 degrees, and the balls (72) of each support frame (71) slide on the inner walls of the oil suction pump barrel (1) and the oil discharge piston (2) respectively.

3. The integrated fixed valve tube oil well pump according to claim 1, characterized in that: The bottom of the first airtight plate (32) and the bottom of the second airtight plate (52) are both provided with sealing strips (8), the sealing strips (8) being made of rubber, and the tops of the first airtight plate (32) and the second airtight plate (52) are both provided with sealing grooves (9) for use in conjunction with the two sealing strips (8).

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