Leak-proof petroleum wellhead

Abstract

The application discloses an anti-leakage petroleum wellhead device, which comprises a wellhead cover, a circular box is fixed to the top of the wellhead cover, a through hole is formed through the bottom wall of the circular box, and clamping and vibrating oil removal mechanisms are arranged on the two sides of the bottom of the circular box and used for clamping petroleum pipelines and driving the petroleum pipelines to horizontally vibrate to quickly remove residual petroleum in the petroleum pipelines, and the application relates to the technical field of petroleum drilling and production. The anti-leakage petroleum wellhead device is characterized in that, through the arrangement of the clamping and vibrating oil removal mechanisms, two clamping plates, a square groove, a square block and springs are used to clamp petroleum pipelines with different thicknesses, through the arrangement of a driving assembly, the rotation of a cam drives the two clamping plates to clamp the petroleum pipelines to reciprocatingly vibrate left and right, residual crude oil in the petroleum pipelines is quickly shaken out, the residual crude oil in the petroleum pipelines is quickly cleaned and removed, and thus the residual crude oil is effectively prevented from dropping and polluting the ground.

Description

Technical Field

[0001] This invention relates to the field of oil drilling and production technology, specifically to a leak-proof oil wellhead device. Background Technology

[0002] Petroleum is mainly used as fuel and gasoline, and is also a raw material for many chemical industrial products, such as solutions, fertilizers, pesticides and plastics. In the current oil extraction process, crude oil is usually extracted from oil wells through oil pipelines.

[0003] Chinese patent application CN114059953A discloses a leak-proof oil wellhead device and its usage method. This patent application solves the problem that during the extraction process, some crude oil is inevitably carried out with the oil pipeline when it is withdrawn from the oil well. This crude oil drips onto the ground, polluting the environment and wasting workers' time in cleaning it up. Oil overflowing from the wellhead also pollutes the ground. However, the above patent still has the following shortcomings:

[0004] (1) When oil pipelines are withdrawn from oil wells, residual crude oil remains in the pipelines. The inability to quickly drain the residual crude oil is the main reason for crude oil dripping and polluting the ground.

[0005] (2) Crude oil is prone to lose fluidity at low temperatures, and may even solidify and precipitate wax. Over time, this wax gradually accumulates and may eventually block the oil pipeline, causing crude oil to overflow and leak, thus affecting crude oil extraction.

[0006] (3) The oil wells lack anti-theft devices, and there is a risk of crude oil being stolen when oil is not being extracted;

[0007] To address this issue, we propose a leak-proof oil wellhead device. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a leak-proof oil wellhead device, solving the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solution: a leak-proof oil wellhead device, including a well mask, a round box fixed to the top of the well mask, a through hole through the bottom wall of the round box, and clamping vibration degreasing mechanism provided on both sides of the bottom of the round box, which clamps on the oil pipeline and drives the oil pipeline to vibrate horizontally to quickly remove residual oil in the oil pipeline.

[0010] The clamping vibration degreasing mechanism includes two horizontal slots at the bottom of the round box. Slider blocks are slidably connected inside each of the two horizontal slots. A spring is fixed between one side of each slider and the inner wall of the horizontal slot. A U-shaped frame is fixed between one side of each slider. A vertical rod is fixed to the bottom of each slider. A U-shaped sleeve is fixed to the bottom end of each vertical rod. Clamping plates are slidably connected to the inner surfaces of each U-shaped sleeve. A square slot is formed at the top of each clamping plate. A block is fixed to the top wall of each U-shaped sleeve. Both blocks slide inside the square slot, and a spring is fixed between one side of each block and the inner wall of the square slot. A drive assembly is provided at the bottom of the round box to drive the two clamping plates to reciprocate horizontally.

[0011] Preferably, the drive assembly includes a rotating shaft rotatably connected to the bottom of the round box, a cam fixed to the bottom end of the rotating shaft, an L-shaped plate fixed to the bottom of the round box, a motor fixed to the bottom of the L-shaped plate, and pulleys fixed to both the output end of the motor and the rotating shaft, with the two pulleys connected by a belt drive.

[0012] Preferably, the bottom of the well mask is fixed with a base plate, the bottom of the base plate has a through hole, and the base plate has three through arc grooves.

[0013] Preferably, a rotating agitation anti-solidification mechanism is provided inside the well mask and at the top of the base plate. The rotating agitation anti-solidification mechanism includes an inner toothed ring fixed to the top of the base plate, an outer toothed ring rotatably connected to the top of the base plate, and three gears are provided between the outer toothed ring and the inner toothed ring. All three gears mesh with the teeth of the outer toothed ring and the inner toothed ring.

[0014] Preferably, a second motor is fixed to the bottom of the round box, a second gear is fixed to the output end of the second motor, the second gear meshes with an external gear ring, a stirring rod is fixed to the bottom of each of the three first gears, the bottom ends of the three stirring rods penetrate the arc-shaped groove and extend to the outside of the arc-shaped groove, and the outer surfaces of the three stirring rods are slidably connected to the inner surface of the arc-shaped groove, and blades are fixed on each of the three stirring rods.

[0015] Preferably, the interior of the round box is provided with an anti-theft opening and closing unit, which includes a ring seat rotatably connected inside the round box. The top of the ring seat has five sliding grooves, and five connecting posts are fixed on the bottom wall of the round box.

[0016] Preferably, the connecting post passes through the slide groove and extends to the outside of the slide groove, and the connecting post slides within the slide groove. Five connecting ears are fixed on the ring seat, and a ring plate is fixed on the bottom wall of the round box. Five baffles are rotatably connected to the top of the ring plate via a pin. A connecting arm is rotatably connected between the top of the five baffles and the top of the connecting ears via a mounting shaft. A through groove is provided on one side of the round box.

[0017] Preferably, an arc-shaped rack is fixed to one side of the ring seat, a horizontal plate is fixed to one side of the well mask, a motor is fixed to the top of the horizontal plate, a gear is fixed to the output end of the motor, and the gear meshes with the arc-shaped rack.

[0018] Beneficial effects

[0019] This invention provides a leak-proof oil wellhead device. Compared with the prior art, it has the following advantages:

[0020] (1) By setting up a clamping vibration degreasing mechanism, two clamping plates, a square groove, a square block, and a spring are used to clamp oil pipes of different diameters. By setting up a drive component, the rotation of the cam drives the two clamping plates to clamp the oil pipes and vibrate back and forth, so that the crude oil remaining in the oil pipes can be shaken out quickly, thus completing the rapid cleaning and removal of the crude oil remaining in the oil pipes, thereby effectively preventing the crude oil remaining from dripping and polluting the ground.

[0021] (2) By setting up a rotating agitation anti-coagulation mechanism, the crude oil in the oil well is automatically and quickly agitated, so that the crude oil can maintain its fluidity in a low-temperature environment, preventing the crude oil from solidifying and precipitating wax, thereby effectively avoiding blockage in the oil pipeline, ensuring the normal operation of the clamping vibration degreasing mechanism, and further preventing the overflow and leakage of crude oil, thus improving the efficiency of oil extraction.

[0022] (3) By setting up the anti-theft opening and closing unit, not only is the anti-theft protection of the oil wellhead achieved, but also the anti-theft protection of the clamping vibration degreasing mechanism and the rotating stirring anti-solidification mechanism is provided. It can also prevent external impurities and garbage from entering the oil wellhead and causing pollution. Attached Figure Description

[0023] Figure 1 The external structural three-dimensional representation of the present invention Figure 1 ;

[0024] Figure 2 The external structural three-dimensional representation of the present invention Figure 2 ;

[0025] Figure 3 This is a cross-sectional view of the circular box and well mask of the present invention;

[0026] Figure 4 For the present invention Figure 3 A magnified view of a section at point A in the middle;

[0027] Figure 5 This is a cross-sectional view of the U-shaped sleeve plate of the present invention;

[0028] Figure 6 This is a perspective view of the rotating stirring anti-coagulation mechanism of the present invention;

[0029] Figure 7 This is a diagram showing the separated state of the ring seat and the circular box according to the present invention;

[0030] Figure 8 This is an exploded perspective view of the anti-theft opening and closing unit of the present invention.

[0031] In the diagram: 1. Well mask; 2. Round box; 3. Through hole; 4. Clamping vibration degreasing mechanism; 5. Drive assembly; 6. Base plate; 7. Round hole; 8. Arc groove; 9. Rotary agitation anti-solidification mechanism; 10. Anti-theft opening and closing unit; 41. Horizontal groove; 42. Slider; 43. Spring 1; 44. U-shaped frame; 45. U-shaped sleeve plate; 46. Clamping plate; 47. Square groove; 48. Square block; 49. Spring 2; 410. Vertical rod; 51. Rotating shaft; 52. Cam; 53. L-shaped plate; 54. Motor 1; 55. 56. Belt; 91. Internal gear ring; 92. External gear ring; 93. Gear 1; 94. Motor 2; 95. Gear 2; 96. Stirring rod; 97. Paddle; 101. Ring seat; 102. Slide groove; 103. Connecting column; 104. Connecting ear; 105. Ring plate; 106. Pin; 107. Baffle; 108. Mounting shaft; 109. Connecting arm; 1010. Through groove; 1011. Arc rack; 1012. Horizontal plate; 1013. Motor 3; 1014. Gear 3. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] The present invention provides three technical solutions, specifically including the following embodiments:

[0034] Example 1: Please refer to Figures 1-5 A leak-proof oil wellhead device includes a well cover 1, which has an open design at both the top and bottom. A circular box 2 is fixed to the top of the well cover 1, and the top of the circular box 2 is also open, as shown in the instruction manual. Figure 7As shown, a through hole 3 is provided through the bottom wall of the round box 2, which allows the oil pipe to pass through. Both sides of the bottom of the round box 2 are provided with clamping vibration oil removal mechanism 4, which clamps the oil pipe and drives the oil pipe to vibrate horizontally to quickly remove the residual oil in the oil pipe. The clamping vibration oil removal mechanism 4 drives the oil pipe to vibrate horizontally and shakes out the residual crude oil in the oil pipe.

[0035] The clamping vibration degreasing mechanism 4 includes two transverse grooves 41 formed at the bottom of the circular box 2. Slider 42 is slidably connected inside each of the two transverse grooves 41, and the slider 42 is sized to fit the transverse groove 41. A spring 43 is fixed between one side of each slider 42 and the inner wall of the transverse groove 41. A U-shaped frame 44 is fixed between one side of each slider 42, allowing the two sliders 42 to be connected as a whole. A vertical rod 410 is fixed to the bottom of each slider 42, and a U-shaped sleeve plate 45 is fixed to the bottom end of each vertical rod 410. Clamping plates 46 are slidably connected to the inner surfaces of each U-shaped sleeve plate 45. The clamping plates 46 can only slide left and right within the U-shaped sleeve plate 45, and the top edge of the clamping plate 46 is an arc-shaped inclined surface, as shown in the instruction manual. Figure 5 As shown, when the oil pipeline is pressed down, it can squeeze the two inclined surfaces, so that the clamping plate 46 can move adaptively to clamp the oil pipeline, which can meet the clamping of oil pipelines of different diameters. The top of the two clamping plates 46 is provided with square grooves 47, and the top walls of the two U-shaped sleeve plates 45 are fixed with blocks 48. The two blocks 48 slide inside the square grooves 47, and springs 49 are fixed between one side of the two blocks 48 and the inner wall of the square grooves 47. The bottom of the round box 2 is provided with a drive assembly 5 to drive the two clamping plates to reciprocate horizontally.

[0036] The drive assembly 5 includes a rotating shaft 51 rotatably connected to the bottom of the round box 2. A cam 52 is fixed to the bottom end of the rotating shaft 51. The side of the cam 52 contacts and presses against one side of one of the sliders 42. When the cam 52 rotates, it drives the two sliders 42 to move back and forth simultaneously under the cooperation of the second spring 49. An L-shaped plate 53 is fixed to the bottom of the round box 2. A motor 54 is fixed to the bottom of the L-shaped plate 53. The motor 54 is controlled by an external switch and electrically connected to an external power source. A pulley 55 is fixed to both the output end of the motor 54 and the rotating shaft 51. The two pulleys 55 are connected by a belt 56.

[0037] By using the clamping vibration degreasing mechanism 4, two clamping plates 46, a square groove 47, a square block 48, and a spring 49 are used to clamp oil pipes of different diameters. By using the drive component 5, the rotation of the cam 52 drives the two clamping plates 46 to clamp the oil pipe and vibrate back and forth, so that the crude oil remaining in the oil pipe is quickly shaken out, thus completing the rapid cleaning and removal of the crude oil remaining in the oil pipe and effectively preventing the crude oil remaining from dripping and polluting the ground.

[0038] The bottom of the well mask 1 is fixed with a base plate 6. A round hole 7 is opened through the bottom of the base plate 6. The round hole 7 allows the oil pipeline to pass through. Three arc-shaped grooves 8 are opened through the base plate 6. The arc-shaped grooves 8 allow the three stirring rods 96 to stir.

[0039] Example 2: Based on Example 1, see... Figure 3 and Figure 6 As shown, a rotating agitation anti-coagulation mechanism 9 is provided inside the well mask 1 and at the top of the base plate 6. The rotating agitation anti-coagulation mechanism 9 includes an inner gear ring 91 fixed to the top of the base plate 6. An outer gear ring 92 is rotatably connected to the top of the base plate 6. An oil pipeline passes through the inside of the outer gear ring 92. Three gears 93 are provided between the outer gear ring 92 and the inner gear ring 91. All three gears 93 mesh with the teeth of the outer gear ring 92 and the inner gear ring 91.

[0040] A motor 2 94 is fixed to the bottom of the round box 2. The motor 2 94 is a three-phase asynchronous motor that can rotate in both directions. It is controlled by an external switch and electrically connected to an external power supply. A gear 2 95 is fixed to the output end of the motor 2 94. The gear 2 95 meshes with the external gear ring 92. A stirring rod 96 is fixed to the bottom of each of the three gears 1 93. The bottom ends of the three stirring rods 96 pass through the arc-shaped groove 8 and extend to the outside of the arc-shaped groove 8. When rotating, the stirring rods 96 only rotate within the corresponding arc-shaped groove 8. The motor 2 94 drives the stirring rods 96 to rotate back and forth clockwise and counterclockwise. The outer surfaces of the three stirring rods 96 are slidably connected to the inner surfaces of the arc-shaped groove 8. A blade 97 is fixed to each of the three stirring rods 96. The stirring rods 96 and the blades 97 can revolve around the central axis and rotate on their own axis, thereby fully agitating the crude oil in the oil well and keeping the crude oil flowing.

[0041] By setting up the rotating agitation anti-coagulation mechanism 9, the crude oil in the oil well is automatically and rapidly agitated, so that the crude oil can maintain its fluidity even in a low-temperature environment, preventing the crude oil from solidifying and precipitating wax, thereby effectively avoiding blockage in the oil pipeline, ensuring the normal operation of the clamping vibration degreasing mechanism, and further preventing crude oil overflow and leakage, thus improving the efficiency of oil extraction.

[0042] Example 3: Based on Example 2, see... Figures 7-8 As shown, the inside of the round box 2 is provided with an anti-theft opening and closing unit 10. The anti-theft opening and closing unit 10 includes a ring seat 101 rotatably connected inside the round box 2. Five sliding grooves 102 are opened through the top of the ring seat 101, and five connecting posts 103 are fixed on the bottom wall of the round box 2.

[0043] The connecting post 103 passes through the slide groove 102 and extends to the outside of the slide groove 102. The connecting post 103 slides within the slide groove 102. Five connecting ears 104 are fixed on the ring seat 101. An annular plate 105 is fixed on the bottom wall of the circular box 2. Five baffles 107 are rotatably connected to the top of the annular plate 105 via a pin 106. When the five baffles 107 are closed, they can block the through hole 3. A connecting arm 109 is rotatably connected between the top of the five baffles 107 and the top of the connecting ears 104 via a mounting shaft 108. A through groove 1010 is provided on one side of the circular box 2. The through groove 1010 allows the gear 3 1014 to pass through, so that the gear 3 1014 meshes with the arc-shaped rack 1011.

[0044] An arc-shaped rack 1011 is fixed to one side of the ring seat 101, and a horizontal plate 1012 is fixed to one side of the well mask 1. A motor 1013 is fixed to the top of the horizontal plate 1012. The motor 1013 can rotate in both directions, is controlled by an external switch, and is electrically connected to an external power source. A gear 1014 is fixed to the output end of the motor 1013, and the gear 1014 meshes with the arc-shaped rack 1011.

[0045] By setting up the anti-theft opening and closing unit 10, not only is the oil wellhead protected against theft, but the clamping vibration degreasing mechanism 4 and the rotating stirring anti-coagulation mechanism 9 are also protected against theft. It can also prevent external impurities and garbage from entering the oil wellhead and causing pollution.

[0046] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0047] During operation, the entire device is placed on the wellhead, and the base plate 6 is welded and fixed to the wellhead. When oil extraction is required, motor 3 1013 is started, causing the ring seat 101 to rotate, which in turn causes the five connecting arms 109 to swing. While swinging, the baffle 107 rotates around the pin 106 and opens, allowing the oil pipeline to be inserted between the five baffles 107, passing through the through hole 3, the external gear ring 92, and the round hole 7, ultimately inserting the oil pipeline into the oil well. The two clamping plates 46 then clamp the oil pipeline. Motor 2 94 is then started, causing the gear 2 95 to rotate, which in turn causes the external gear ring 92 to rotate. The external gear ring 92 causes the three gears 1 93 to rotate on their own axes while simultaneously revolving around the internal gear ring 91, thereby driving the stirring rod. 96 and blade 97 agitate the crude oil inside the well, increasing its fluidity and preventing solidification and wax precipitation due to low-temperature crude oil. This facilitates oil extraction via the pipeline and effectively prevents blockages. After extraction, a section of the pipeline is pulled out, and motor 54 is activated. Motor 54 drives cam 52 to rotate, which in turn drives slider 42, upright rod 410, U-shaped sleeve 45, and clamping plate 46 to vibrate back and forth. Clamping plate 46 causes the pipeline to swing left and right, quickly shaking out any remaining crude oil and preventing it from dripping and contaminating the ground when the pipeline is completely pulled out. After the pipeline is pulled out, motor 3 1013 is reversed, causing the five baffles 107 to reset and close, thus providing anti-theft protection for the wellhead.

[0048] The embodiments of the invention have been described in detail above, but the content described is only a preferred embodiment of the invention and should not be considered as limiting the scope of the invention. All equivalent changes and improvements made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A leak-tight petroleum wellhead comprising a wellhead housing (1), characterized in that: The top of the wellhead cover (1) is fixed with a round box (2), a through hole (3) is arranged through the bottom wall of the round box (2), and clamping vibration oil removal mechanisms (4) for clamping on the oil pipeline and driving the oil pipeline to horizontally vibrate to quickly remove residual oil in the oil pipeline are arranged on the two sides of the bottom of the round box (2). The clamping vibration oil removal mechanism (4) comprises two horizontal grooves (41) arranged in the bottom of the round box (2), a sliding block (42) is slidably connected in each of the two horizontal grooves (41), a spring (43) is arranged between the inner wall of the horizontal groove (41) and the side of the sliding block (42), a U-shaped frame (44) is arranged between the sides of the two sliding blocks (42), a vertical rod (410) is arranged at the bottom of each of the two sliding blocks (42), a U-shaped sleeve plate (45) is arranged at the bottom end of each of the two vertical rods (410), a clamping plate (46) is slidably connected to the inner surface of each of the two U-shaped sleeve plates (45), a square groove (47) is arranged in the top of each of the two clamping plates (46), a square block (48) is fixed to the top wall of each of the two U-shaped sleeve plates (45), the square block (48) is slidably arranged in the square groove (47), and a spring (49) is arranged between the side of the square block (48) and the inner wall of the square groove (47), and a driving assembly (5) is arranged at the bottom of the round box (2) to drive the two clamping plates to horizontally reciprocate. The driving assembly (5) comprises a rotating shaft (51) rotatably connected to the bottom of the round box (2), a cam (52) is fixed to the bottom end of the rotating shaft (51), the side of the cam (52) is in contact with the side of one of the sliding blocks (42), an L-shaped plate (53) is fixed to the bottom of the round box (2), a motor (54) is fixed to the bottom of the L-shaped plate (53), a belt pulley (55) is fixed to the output end of the motor (54) and the rotating shaft (51), and the two belt pulleys (55) are drivingly connected by a belt (56).

2. A leak-proof oil wellhead apparatus according to claim 1, characterized in that: The bottom of the wellhead cover (1) is fixed with a bottom plate (6), a round hole (7) is arranged through the bottom of the bottom plate (6), and three arc-shaped grooves (8) are arranged through the bottom plate (6).

3. A leak-tight petroleum wellhead apparatus according to claim 2, characterized in that: A rotating stirring anti-solidification mechanism (9) is arranged in the wellhead cover (1) and at the top of the bottom plate (6), the rotating stirring anti-solidification mechanism (9) comprises an inner gear ring (91) fixed to the top of the bottom plate (6), an outer gear ring (92) rotatably connected to the top of the bottom plate (6), and three gear wheels (93) arranged between the outer gear ring (92) and the inner gear ring (91), and the three gear wheels (93) are in meshing connection with the teeth of the outer gear ring (92) and the inner gear ring (91).

4. A leak-proof oil wellhead apparatus according to claim 3, characterized in that: The bottom of the round box (2) is fixed with motor two (94), the output end of motor two (94) is fixed with gear two (95), gear two (95) is engaged with outer gear ring (92), the bottom of three gear one (93) is fixed with stirring rod (96), the bottom end of three stirring rod (96) is through arc slot (8) and extends to the outside of arc slot (8), and the outer surface of three stirring rod (96) is slidably connected with the inner surface of arc slot (8), three stirring rod (96) are fixed with paddle (97).

5. A leak-proof oil wellhead apparatus as defined in claim 1, wherein: The inside of the round box (2) is provided with anti-theft opening and closing unit (10), the anti-theft opening and closing unit (10) includes ring seat (101) rotatably connected in the inside of the round box (2), five sliding grooves (102) are through the top of ring seat (101), five connecting columns (103) are fixed on the bottom wall of the round box (2).

6. A leakproof wellhead assembly according to claim 5, wherein: The connecting column (103) is through the sliding groove (102) and extends to the outside of the sliding groove (102), and the connecting column (103) is slidably connected in the sliding groove (102), five connecting ears (104) are fixed on the ring seat (101), the ring plate (105) is fixed on the bottom wall of the round box (2), five baffle plates (107) are rotatably connected on the top of the ring plate (105) through the pin shaft (106), five connecting arms (109) are rotatably connected between the top of five baffle plates (107) and the top of connecting ear (104) through mounting shaft (108), the side of the round box (2) is through the through slot (1010).

7. A leakproof wellhead assembly according to claim 5 wherein: The side of the ring seat (101) is fixed with arc rack (1011), the side of the wellhead cover (1) is fixed with horizontal plate (1012), the top of horizontal plate (1012) is fixed with motor three (1013), the output end of motor three (1013) is fixed with gear three (1014), gear three (1014) is engaged with arc rack (1011).

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