Desanding device for directional fan of pumping well polish rod sealer

Abstract

The utility model discloses a sand removing device for a directional fan of a pumping well polish rod sealer. The sand removing device comprises a fixing rod, a notch flange, a support, a transmission shaft, a fixing support, an air bellow, an impeller mechanism and a belt wheel mechanism. The air outlet of the air bellow is communicated with the interior of the polish rod sealer through a pipeline, the fixing rod is inserted into the wellhead of an oil well, after wind and sand are blown, the blade fan can be blown to rotate, the blade fan drives the transmission shaft to rotate through the transmission mechanism, the transmission shaft drives the belt wheel mechanism to rotate, the impeller mechanism in the air bellow rotates, and after the impeller mechanism rotates, the belt wheel mechanism rotates. Air is sucked from the air inlet and then is blown into the polish rod sealer through the pipeline of the air outlet, so that convection is formed between air in the polish rod sealer and external sand wind, wind is controlled by wind, external natural wind is used for manufacturing directional wind, sand grains on a polish rod, making contact with the polish rod sealer, of a pumping well of a machine are cleared away, and the polish rod sealer is cleaned away. The problem that the sucker rod is damaged due to the fact that sand blown into the sealer is solved, the filter is arranged at the air inlet, and sand is prevented from being blown into the sealer from the inside.

Description

Technical Field

[0001] This utility model relates to the field of mechanical pumping well technology, and in particular to a directional fan sand removal device for a polished rod seal in mechanical pumping wells. Background Technology

[0002] Petroleum is an important non-renewable resource used as fuel and gasoline. To extract oil, oil is pumped from the bottom of the well to the wellhead through boreholes drilled according to the oilfield development plan. Oil well extraction requires pumping equipment. Existing pumping equipment involves inserting a sucker rod into the bottom of the well and then connecting it to a machine to pump the crude oil up and down. A polished rod seal is installed at the wellhead to ensure the stability of the sucker rod. However, because the pumping equipment operates in an environment full of sand and dust, sand and dust can be blown into the seal, causing the sucker rod to be damaged by the friction of sand particles during the up and down pumping.

[0003] Therefore, existing technologies still need to be improved and enhanced. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a directional fan desanding device for the polished rod seal of a mechanically pumped well, which aims to solve the problem of wind and sand blowing into the seal and causing damage to the sucker rod in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A directional fan desanding device for a machine-pumped well polished rod seal includes:

[0007] The fixing rod has a notched flange in the middle.

[0008] A support is attached to the upper end of a fixed rod, and a fan blade is rotatably connected to the support.

[0009] The drive shaft is located inside the fixed rod, and the lower end of the drive shaft is connected to the notched flange through the lower fixed bearing of the drive shaft, while the upper end of the drive shaft is connected to the blade fan through the transmission mechanism.

[0010] A fixed bracket is mounted on a fixed rod and located at the lower end of the notched flange;

[0011] The bellows is mounted on a fixed support and located on the notch side of the notch flange. The upper end of the bellows has an air inlet, the lower end of the bellows has an air outlet, and a filter is installed at the air inlet.

[0012] The impeller mechanism is rotatably connected inside the bellows.

[0013] The pulley mechanism is connected at one end to the lower end of the drive shaft and at the other end to the upper end of the impeller mechanism.

[0014] Furthermore, a guide vane is provided on the support, and the guide vane is arranged along the axial direction of the impeller; a connecting flange is provided on the upper part of the fixed rod, and a set of rotating bearings is provided at the top of the fixed rod and inside the connecting flange. The support is connected to the fixed rod through the rotating bearings; the upper part of the drive shaft is connected to the support through a fixed bearing on the drive shaft.

[0015] Furthermore, the impeller mechanism consists of an impeller shaft and impellers. Both ends of the impeller shaft are connected to the wind box through impeller fixed bearings, and multiple impellers are spaced apart on the impeller shaft.

[0016] Furthermore, the bellows is cylindrical, and a bearing housing is provided inside the bellows. The impeller shaft is connected to the bearing housing through an impeller fixed bearing.

[0017] Furthermore, the fan blades consist of fan blades and a rotating shaft. The rotating shaft is connected to the support via two rotating shaft fixed bearings. A first conical bevel gear is provided in the middle of the rotating shaft, and a second conical bevel gear is provided at the top of the transmission shaft. The first and second conical bevel gears mesh with each other to form a transmission mechanism.

[0018] Furthermore, the pulley mechanism includes two pulleys and a belt. One pulley is located at the lower end of the drive shaft, and the other pulley is located at the upper end of the impeller shaft. The belt is wound around the two pulleys.

[0019] The technical solution adopted in this utility model has the following beneficial effects:

[0020] In this invention, the air outlet of the bellows is connected to the inside of the polished rod seal via a pipeline. The fixed rod is inserted at the wellhead of the oil well. When the wind and sand blow up, they will drive the blade fan to rotate. The blade fan drives the transmission shaft to rotate through the transmission mechanism, and the transmission shaft drives the pulley mechanism to rotate, causing the impeller mechanism inside the bellows to rotate. After the impeller mechanism rotates, air is drawn in from the air inlet and then blown into the inside of the polished rod seal through the pipeline at the air outlet. This causes the air inside the polished rod seal to form a convection with the external wind and sand, achieving "using wind to control wind". It uses the external natural wind to create directional wind to clean the sand particles on the polished rod that comes into contact with the polished rod seal, solving the problem of wind and sand blowing into the seal and causing damage to the sucker rod. In addition, a filter is installed at the air inlet to prevent sand particles and other residues from being blown in from the inside. Attached Figure Description

[0021] Figure 1 A front view of a directional fan desanding device for a machine-pumped well polished rod seal provided by this utility model;

[0022] Figure 2 A cross-sectional structural schematic diagram of a directional fan sand removal device for a machine-operated well polished rod seal provided by this utility model;

[0023] Figure 3A schematic diagram of the pulley mechanism of a directional fan sand removal device for a machine-operated well polished rod seal is provided for this utility model.

[0024] Figure 4 A schematic diagram of the impeller structure of a directional fan sand removal device for a machine-operated well polished rod seal is provided for this utility model;

[0025] Figure 5 A schematic diagram of the bearing seat structure of a directional fan sand removal device for a machine-operated well polished rod seal provided by this utility model.

[0026] 1. Fixed rod; 2. Support; 3. Drive shaft; 4. Blade; 5. Fixed bracket; 6. Air box; 7. Notched flange; 8. Connecting flange; 9. Lower fixed bearing of drive shaft; 10. Guide vane; 11. Rotary bearing; 12. Upper fixed bearing of drive shaft; 13. Impeller; 14. Impeller shaft; 15. Air inlet; 16. Air outlet; 17. Filter; 18. Bearing housing; 19. Rotary shaft; 20. Rotary shaft fixed bearing; 21. First conical bevel gear; 22. Second conical bevel gear; 23. Belt; 24. Pulley; 25. Impeller fixed bearing. Detailed Implementation

[0027] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0028] Please refer to the following: A directional fan desanding device for a machine-pumped well polished rod seal. Figure 1 and Figure 2The system includes a fixed rod 1, a notched flange 7, a support 2, a drive shaft 3, a fixed bracket 5, a wind box 6, an impeller 13 mechanism, and a pulley mechanism. The fixed rod 1 is divided into upper, middle, and lower parts by the notched flange 7 and the connecting flange 8. The upper and middle parts are fixedly connected by the connecting flange 8, while the middle and lower parts are fixedly connected by the notched flange 7. The interior of the fixed rod 1 is hollow to facilitate the installation of devices such as the drive shaft 3, and the bottom of the fixed rod 1 is tapered to facilitate insertion at the wellhead. The support 2 is connected to the upper end of the fixed rod 1, and a fan 4 is rotatably connected to the support 2. The drive shaft 3 is... Inside the fixed rod 1, the lower end of the drive shaft 3 is connected to the notched flange 7 via the lower fixed bearing 9 of the drive shaft, and the upper end of the drive shaft 3 is connected to the blade 4 via the transmission mechanism; the fixed bracket 5 is set on the fixed rod 1 and located at the lower end of the notched flange 7; the air box 6 is set on the fixed bracket 5 and located on the notched side of the notched flange 7, the upper end of the air box 6 is provided with an air inlet 15, the lower end of the air box 6 is provided with an air outlet 16, and a filter 17 is provided at the air inlet 15; the impeller 13 mechanism is rotatably connected inside the air box 6; one end of the pulley mechanism is connected to the lower end of the drive shaft 3, and the other end is connected to the upper end of the impeller 13 mechanism.

[0029] In use, the air outlet 16 of the bellows 6 is connected to the inside of the polished rod seal through a pipeline. The fixed rod 1 is inserted at the wellhead of the oil well. When the wind and sand blow up, it will drive the blade fan 4 to rotate. The blade fan 4 drives the transmission shaft 3 to rotate through the transmission mechanism. The transmission shaft 3 then drives the pulley mechanism to rotate, causing the impeller 13 mechanism inside the bellows 6 to rotate. After the impeller 13 mechanism rotates, air is drawn in from the air inlet 15 and then blown into the inside of the polished rod seal through the pipeline of the air outlet 16. This causes the air inside the polished rod seal to form a convection with the external wind and sand, realizing "using wind to control wind". It uses the external natural wind to create directional wind to clean the sand particles on the polished rod that is in contact with the polished rod seal of the pumping well, solving the problem of wind and sand blowing into the seal and causing damage to the sucker rod. In addition, a filter 17 is installed at the air inlet 15 to prevent sand particles and other residues from being blown in from the inside.

[0030] In the embodiments of this utility model, see Figure 2 A guide vane 10 is also provided on the support 2, and the guide vane 10 is arranged along the axial direction of the impeller 13; a connecting flange 8 is also provided on the upper part of the fixed rod 1, and a set of rotating bearings 11 are provided at the top of the fixed rod 1 and inside the connecting flange 8. The support 2 is connected to the fixed rod 1 through the rotating bearings 11; the upper part of the transmission shaft 3 is connected to the support 2 through the fixed bearing 12 on the transmission shaft; in nature at the wellhead, the wind direction is not fixed, which causes the blade 4 to rotate unpredictably. To avoid this situation, a guide vane 10 is provided on the support 2. The guide vane 10 is triangular in shape and is set perpendicular to the rotation direction of the blade 4. When the wind blows, it will first blow the guide vane 10, causing it to rotate to the same position as the wind direction, and then the natural wind can blow the blade 4 to rotate, thus avoiding failure.

[0031] In this embodiment, refer to Figure 2 , Figure 4 and Figure 5 The impeller 13 mechanism consists of an impeller shaft 14 and impellers 13. Both the upper and lower ends of the impeller shaft 14 are connected to the air box 6 through impeller fixed bearings 25. Multiple impellers 13 are spaced apart on the impeller shaft 14. Driven by the blade fan 4, the impellers 13 can rotate accordingly. The rotation direction of the blade fan 4 is fixed, which in turn drives the rotation direction of the impellers 13 to be fixed as well. This allows the air box 6 to draw in natural air and then blow it into the polished rod seal, further ensuring that the sand particles on the polished rod that the cleaning machine pumps out are in contact with the polished rod seal.

[0032] The bellows 6 is cylindrical, and a bearing housing 18 is provided inside the bellows 6. The impeller shaft 14 is connected to the bearing housing 18 through the impeller fixed bearing 25.

[0033] In this embodiment, the fan blade 4 is composed of a fan blade and a rotating shaft 19. The rotating shaft 19 is connected to the support 2 through two rotating shaft fixed bearings 20. A first conical bevel gear 21 is provided in the middle of the rotating shaft 19, and a second conical bevel gear 22 is provided at the top of the transmission shaft 3. The first conical bevel gear 21 and the second conical bevel gear 22 mesh with each other to form a transmission mechanism. The transmission formed by the two bevel gears can ensure the efficiency and stability of the transmission.

[0034] In the embodiments of this utility model, see Figure 2 and Figure 3 The pulley mechanism includes two pulleys 24 and a belt 23. One pulley 24 is located at the lower end of the drive shaft 3, and the other pulley 24 is located at the upper end of the impeller shaft 14. The belt 23 is wound around the two pulleys 24. As the drive shaft 3 rotates, the impeller shaft 14 rotates under the action of the belt 23 to achieve air intake.

[0035] In this invention, the air outlet 16 of the bellows 6 is connected to the inside of the smooth rod seal via a pipeline. The fixing rod 1 is inserted at the wellhead of the oil well. After the wind and sand are blown up, the guide vane 10 is first blown to rotate to the same position as the wind direction. Then, the natural wind can blow the blade fan 4 to rotate. The blade fan 4 drives the transmission shaft 3 to rotate through two bevel gears. The transmission shaft 3 then drives the pulley 24 and belt 23 to rotate. The impeller shaft 14 rotates under the action of the belt 23. The impeller 13 rotates to achieve air intake. Air is drawn in from the air inlet 15 and then through the air outlet. Air is blown into the polished rod seal through the pipeline 16, causing the air inside the polished rod seal to convect with the external wind and sand, achieving "wind-to-wind" operation. It uses the external natural wind to create directional wind, cleaning the sand particles on the polished rod that comes into contact with the polished rod seal, blowing away the wind and sand adhering to the polished rod, reducing the wear of the polished rod and polished rod seal, greatly improving the operating environment of the pumped rod when encountering strong winds and sandstorms, solving the problem of wind and sand blowing into the seal and causing damage to the sucker rod. In addition, a filter 17 is installed at the air inlet 15 to prevent sand particles and other residues from being blown in from the inside.

[0036] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the solutions disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

Claims

1. A directional fan desanding device for a machine-pumped well polished rod seal, characterized in that, include: Fixed rod (1), with a notched flange (7) in the middle of the fixed rod (1); Support (2) is connected to the upper end of fixed rod (1), and blade fan (4) is rotatably connected to support (2); The drive shaft (3) is located inside the fixed rod (1), and the lower end of the drive shaft (3) is connected to the notched flange (7) through the lower fixed bearing (9) of the drive shaft, and the upper end of the drive shaft (3) is connected to the blade fan (4) through the transmission mechanism. The fixed bracket (5) is mounted on the fixed rod (1) and located at the lower end of the notched flange (7); The bellows (6) is mounted on the fixed bracket (5) and located on the notch side of the notch flange (7). The upper end of the bellows (6) is provided with an air inlet (15), the lower end of the bellows (6) is provided with an air outlet (16), and a filter (17) is provided at the air inlet (15). The impeller (13) mechanism is rotatably connected inside the bellows (6); The pulley mechanism is connected at one end to the lower end of the drive shaft (3) and at the other end to the upper end of the impeller (13) mechanism.

2. The directional fan desanding device for the polished rod seal of a machine-pumped well according to claim 1, characterized in that, A guide vane (10) is also provided on the support (2), and the guide vane (10) is arranged along the axial direction of the impeller (13); a connecting flange (8) is also provided on the upper part of the fixed rod (1), and a set of rotating bearings (11) is provided at the top of the fixed rod (1) and inside the connecting flange (8). The support (2) is connected to the fixed rod (1) through the rotating bearings (11); the upper part of the transmission shaft (3) is connected to the support (2) through the fixed bearing (12) on the transmission shaft.

3. The directional fan desanding device for the polished rod seal of a machine-pumped well according to claim 1, characterized in that, The impeller (13) mechanism consists of an impeller shaft (14) and impellers (13). Both ends of the impeller shaft (14) are connected to the wind box (6) through impeller fixed bearings (25). Multiple impellers (13) are arranged at intervals on the impeller shaft (14).

4. The directional fan desanding device for the polished rod seal of a machine-pumped well according to claim 3, characterized in that, The bellows (6) is cylindrical, and a bearing housing (18) is provided inside the bellows (6). The impeller shaft (14) is connected to the bearing housing (18) through the impeller fixed bearing (25).

5. The directional fan desanding device for the polished rod seal of a machine-pumped well according to claim 1, characterized in that, The fan blade (4) is composed of a fan blade and a rotating shaft (19). The rotating shaft (19) is connected to the support (2) through two rotating shaft fixed bearings (20). A first conical bevel gear (21) is provided in the middle of the rotating shaft (19), and a second conical bevel gear (22) is provided at the top of the transmission shaft (3). The first conical bevel gear (21) and the second conical bevel gear (22) mesh with each other to form a transmission mechanism.

6. The directional fan desanding device for the polished rod seal of a machine-pumped well according to claim 1 or 3, characterized in that, The pulley mechanism includes two pulleys (24) and a belt (23). One pulley (24) is located at the lower end of the drive shaft (3), and the other pulley (24) is located at the upper end of the impeller shaft (14). The belt (23) is wound around the two pulleys (24).

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